TW201711352A - Explosion-proof curent diverting device - Google Patents

Abstract

A bearing isolator and explosion-proof current diverting device may be configured to dissipate an electrical charge from a rotating piece of equipment to ground, such as from a motor shaft to a motor housing. One aspect of an explosion-proof current diverter ring may include a stator that may be mounted to the equipment housing and a rotor that may be mounted to a shaft. The rotor may rotate with the shaft. A conductive assembly may be positioned in a radial bore formed in the stator such that the conductive assembly contacts the rotor to conduct electricity from the shaft to the housing through the explosion-proof current diverting device. The explosion-proof current diverting device may be configured to define a flame path to achieve various explosion-proof certifications.

Description

Explosion-proof type current shunting device

The present invention relates to a charge dissipation conduction device in which an electrostatic charge is generated by using a rotating device.

Proper maintenance of rotating equipment is not easy, especially for electric motors, because of the equivalent equipment load cycle, service factor and design reduction, and the lack of spare rotating equipment in the operating plant, so it is maintained and so on. not easy. This is especially true for electric motors, machine tool shafts, pulp equipment rollers, aluminum mills, steam quench pumps, and other equipment that can affect lubrication with considerable contaminants.

A variety of different shaft seals are known to protect the integrity of the bearing environment. Such devices include, for example, rubber sealing lips, gap labyrinth seals, and magnetic seals. Sealing lips or other contact shaft seals tend to fail due to wear and have been found to easily infuse moisture and other contaminants into the lubricating oil reservoir in the operating environment, even before the seal has failed. The interface between the rotor and the stator is contaminated by contaminants or lubricants at the radial ends of the seal. The problem of bearing failure and damage is more serious for the use of variable frequency drive (VFD) electric motors, which are connected to the VFD control motor due to the connected power system. This is often the case with VFDs.

The VFD controls the speed of the motor by switching the sinusoidal alternating current (AC) voltage to the direct current (DC) voltage and then switching it back to the variable frequency pulse width modulation (PWM) AC voltage. It is between 1kHZ and 20kHz and is also called "carrier frequency". The ratio between the voltage difference and the time difference (ΔV/ΔT) produces a so-called parasitic capacitance between the stator and rotor of the motor, which is also included in the voltage on the shaft. If voltage induction is generated on the shaft, it is called "common mode voltage" or "axis voltage". When this voltage reaches a sufficient level, it can be discharged to the ground by bearings. The current flowing through the motor bearing to the ground in this way is called "bearing current".

There are many reasons for the generation of bearing current, including overshoot of voltage pulses in VFD, asymmetry of motor magnetic circuits, uneven power supply, transient conditions and other reasons. Any such situation occurs separately or simultaneously, causing bearing current to be generated from the motor shaft.

When the shaft voltage accumulated on the rotor exceeds the dielectric charge of the motor bearing lubricant, the voltage will be discharged to the ground with a small pulse through the bearing. After discharge, the voltage will accumulate on the shaft again and circulate again. This irregular and often occurring discharge causes an electrical discharge machining (EDM) effect that causes a concave cavity in the rotating elements of the bearing and the raceway. Initially, these discharges can cause "smoothed surfaces" or "matte surfaces" to appear on the surface of these components. Over time, these rough surfaces will cause dents on the bearings, also known as "grooves", which is a sign that the bearings have been severely damaged. If used continuously, this roughening will cause the bearing to completely fail.

For the most external applications, it undoubtedly increases the cost, complexity and exposure to external factors. The isolated bearing provides an internal design solution that completely blocks the allowable current through the bearing to the ground. However, the installation of the isolated bearing does not prevent the shaft voltage, in other words, it will continue to pass through the lower impedance path to the ground. Therefore, isolated bearings do not effectively solve the problem, especially when the low impedance path is driven through the load. In summary, the prior art does not teach an intrinsic, low-wearing manner or device to effectively ground the shaft voltage and prevent permanent damage and ineffectiveness of the bearing due to electrical discharge machining of the bearing.

The present invention provides a bearing isolator comprising: a stator connectable to a device housing, wherein the stator is electrically connected to the device housing, the stator comprising: a body; and a body disposed in the body An axial groove extending from a radially outer surface of the stator to the axial groove; a rotor connectable to a shaft body, the shaft system extending from the device housing and being opposite Rotating, wherein the rotor is electrically connected to the shaft, the rotor comprises: a body; an axial protrusion extending from the body of the rotor and extending into the radial hole of the stator Wherein the axial protrusion is provided with a radially outer surface; and a conductive component is positioned in the radial hole, wherein the conductive component is electrically connected to the stator, and wherein one of the conductive components contacts the part Extending radially inwardly and in contact with the radially outer surface of the axial projection of the rotor.

The present invention also provides an explosion-proof current shunt device, comprising: a stator that can be coupled to a device housing, wherein the stator is electrically connected to the device housing, the stator includes: a body; a radial hole, Extending from a radially outer surface of the stator to a radially inner surface of the stator; a rotor engageable to a shaft body extending from and rotatable relative to the apparatus housing, wherein the rotor system Electrically coupled to the shaft body, wherein a portion of the rotor is positioned between the stator and the shaft body, wherein the rotor includes a body, and one of the radially outer surfaces of the body is adjacent to the body a radial hole in the stator; a conductive component positioned in the radial hole, wherein the conductive component is electrically connected to the stator, and wherein a contact portion of the conductive component extends radially inward beyond a radially inner surface of the stator and in contact with a radially outer surface of the rotor; a flame path extending from a region of the device housing to an outer region of the explosion-proof current shunt device, wherein the flame path is , Between a first axial direction between the stator and the rotor of the interface between the stator and a first radial interface between the rotor of the defined.

Moreover, the present invention provides an explosion-proof method, the method comprising: engaging an explosion-proof current shunt device to a device housing, wherein a rotating shaft system extends from the device housing, and wherein the shaft system is positioned in the explosion-proof type Between the current shunting device; defining a flame path within the explosion-proof current shunt device between the first portion of the explosion-proof current shunt device and the second portion of the explosion-proof current shunt device And the first portion is fixed to the device housing, and the second portion is coupled to the first portion; and the first portion is coupled to the at least one conductive component, Wherein the conductive component is in contact with a portion of a rotor that is coupled to the shaft, the portion of the rotor being positioned within the explosion-proof current shunt device, and wherein the conductive component conducts current from the shaft To the first part of the explosion-proof current shunt device.

Before the method and apparatus of the present invention are disclosed in detail, it is to be understood that the methods and apparatus disclosed herein are not limited to the specific methods, the specific elements or the specific embodiments. In addition, it is to be understood that the terms and the like are intended to be illustrative of the specific embodiments and are not intended to limit the scope of the invention.

In the context of the present specification and the claims, the words "a", "the" and "the" are also meant to mean the meaning of the plural unless the content clearly means a single number. The present invention also uses words that indicate a range, such as from "about" to a value and/or to "about" to the other. When indicated by a range of words, it is represented in another embodiment, and may also include a range of such specific values and/or to another value. Similarly, when a numerical value is expressed by a generalized word, the example uses the word "about" before a certain value, etc., it is understood that this numerical value represents another embodiment of the embodiment. It can be further understood that the starting endpoint of a range is of considerable significance to other endpoints, but should be considered separately from other endpoints.

The words "optional" or "optional" as used herein mean that the events or circumstances described thereafter may occur, but not necessarily, and also include certain events or circumstances. However, it is also possible that the examples will not occur.

The word "comprise" and its like in the context of the specification and claims, such as "including", mean "including but not limited to", and its open expression does not deny the exclusion of other elements. Values or steps, etc. The word "exemplary" means "exemplary" and does not mean a particular or preferred embodiment. The words "such as" or "such as" are not intended to be limiting, but are merely illustrative.

The elements disclosed in this disclosure can be used to implement the disclosed device. For the elements disclosed herein, it will be understood that the combinations, subsets, interactions, groups, etc. of such elements disclosed herein, each combination or arrangement, etc. The summary, and not limitation, and the combinations or permutations described herein are applicable to all methods and devices. This principle principle also applies to this specification, including but not limited to the steps of the method. Thus, if there are many other possible steps, it will be understood that each of the other steps may also be applied to any particular embodiment or any combination of embodiments of the method.

It will be appreciated that the method and apparatus of the present invention may be described in detail by the preferred embodiments and examples and drawings, including as described above or described below. The bearing isolator 10, the explosion-proof current shunt device 10', the current shunt device 11, the CDR 40, 200', the radial CDR 80, the curved CDR 80a, the polycyclic CDR 100, the adaptive CDR 160 and the capture CDR 200 And the like, which may be used in or alternated with the shaft seal and/or bearing isolation when describing the general configuration and/or corresponding components, embodiments, features, functions, methods, and/or structural materials. The device 10 is not particularly limited unless the specification clearly indicates otherwise.

In one embodiment, the current shunting device can be a device for rotating the device that conducts and transmits and directs the accumulated bearing current to the ground. In another embodiment, the current shunting device facilitates a current shunting ring disposed within the stator of the bearing isolator. The conductive segments can be fabricated from metal or non-metallic solids or machined. In terms of operating environment and metal properties, although many different compatible materials are possible, such as copper, gold, carbon, etc., aluminum is based on better conductivity, strength, corrosion resistance and wear resistance. Good metal choice.

It is currently known that when the rotor and stator in the bearing isolator are made of copper, they can have better charge dissipation characteristics. In the embodiment using copper metal characteristics, a copper material conforming to the specification 932 can be used (also referred to as 932000 or "bearing copper"). Therefore, the copper material has excellent load capacity and anti-wear properties, which can be used on bearings and bearing isolators. This bearing copper also has good processing characteristics and is resistant to many chemicals. The copper material is relatively small (85.9 ohms-cmil/ft @ 68 F or 14.29 microhm-cm @ 20 C) and highly conductive (12% IACS @ 68 F or 0.07 MegaSiemens/cm @ 20 C) ), so it has better shaft voltage aggregation characteristics than the commonly used lightning rods.

In another embodiment of the current shunting device and the bearing isolator, it can improve the charge dissipation characteristics of the shaft brush that is typically mounted to the exterior of the motor housing. From past experiments, it can be seen that when the bearing isolator has a concentric circular current separator fixed in the bearing isolator, the shaft voltage and the electric discharge machining effect can be substantially reduced. Direct placement of the current shunt device and the bearing isolator also improves grounding conduction through a combination of a simple housing and conductive elements.

In another embodiment, the current shunting device can be provided with an electric motor to rotate the device with the bearing isolator to retain lubricant, prevent contaminants, and conduct and transfer shaft current to the ground.

In another embodiment of the current shunting device and the bearing isolator, a bearing isolator is provided to maintain the lubricant, prevent contamination, and conduct electrostatic discharge (shaft voltage) to increase bearing operating life.

In another embodiment of the current shunting device, it is provided with means for effectively directing charge conduction from the shaft to the motor housing and to prevent charge transfer to the ground via the bearing.

Other embodiments, objects, advantages, features and/or functions of the current shunting device, the current shunting ring, and/or the bearing isolator can be obtained in more detail by way of the following description.

Referring to Figure 1, an embodiment of a device housing 16 provided with a CDR® 40 is shown. The CDR 40 can be press-fitted to the aperture of the device housing 16 by a tight fit, or it can be secured to the outer side of the device housing 16 by means of a bar 70 and a lock attachment 72 as shown in FIG. The CDR 40 can also be secured to the device housing 16 by other structures and/or means, such as chemical adhesives, welds, rivets, or other structures and/or methods suitable for a particular application. The CDR 40 can also be configured to interface with the bearing isolator 10 or can be integrally formed with the bearing isolator 10 as detailed below.

In a perspective view of one embodiment of the bearing isolator 10 shown in FIG. 2, it is used to discharge electrical power pulses from the shaft 14 through the device housing 16. The bearing isolator 10 shown in FIG. 2 can also be mounted on a rotating shaft on one or both sides of the device housing 16. The bearing isolator 10 can be mounted by a flange, tightly fitted (as shown in FIG. 2), or can be attached to the device housing 16 using other methods and/or structures suitable for a particular application, such as The foregoing methods and structures for CDR 40. In some embodiments, a set of screws (not shown) or other structures and/or methods may also be used to mount the stator 20 to the equipment housing 16 or to mount the rotor 30 to the shaft 14. In another embodiment, not shown, the axle body 14 is stationary, and other structures to which the equipment housing 16 or bearing isolator 10 are mounted may be rotatable. First embodiment of single-piece CDR and bearing isolator

In another embodiment, the CDR 40 and/or the bearing isolator 10 can be mounted in one or both of the CDR 40 and/or the shaft isolator 10 and can float in one or more directions. For example, in one embodiment, one portion of the bearing isolator 10 is positioned in the housing. The housing can be configured to have two opposing plate portions with a main bore therethrough, with the shaft body 14 extending through the main bore. In the interior of the housing, it has bearing spacers 10 and/or CDRs 40 positioned within a truncated, circular (e.g., capsule-like) recess formed in the interior of the housing. A contact point between the bearing isolator 10 and/or the CDR 40 and the housing may also be provided with a low friction material such as Teflon® bonded thereto.

3 is a detailed cross-sectional view of a bearing isolator 10 having a CDR 40. A bearing isolator 10, as shown in Figures 2 and 3, includes a stator 20 and a rotor 30 and is generally referred to as a labyrinth seal. In general, labyrinth seals are known to those of ordinary skill in the art, and are disclosed in, but are not limited to, U.S. Patent Nos. 9,004,491, 8,979,093, 7,726,661, 7,396,017, 7,090,403, 6,419,233. No. 6, 234, 489, No. 6, 182, 972, No. 5, 951, 020, and U.S. Patent Publication No. 2007/013, No. 8 874, the disclosure of which is incorporated herein by reference.

The stator 20 may substantially include a certain sub-body 22 and a plurality of axial and/or radial protrusions extending therefrom, and/or a plurality of axial and/or radial grooves disposed therein, as follows . In one embodiment, as shown in FIGS. 2 and 3, the stator 20 can be secured to the device housing 16 and has an O-ring 18 forming a seal therebetween.

The rotor 30 can generally include a rotor body 32 and a plurality of axial and/or radial projections extending therefrom, and/or a plurality of axial and/or radial grooves disposed therein, as follows . In the illustrated embodiment, the stator axial projection 26 cooperates with a rotor axial groove 39, and a rotor axial projection 36 cooperates with a certain axial axial groove 29 to form a A labyrinth passage between the bearing isolator 10 and the outside environment. The rotor 30 can be fixed to the shaft body 14 and can be rotated therewith. O-ring 18 can be used to form a seal therebetween. The sealing member 17 can be positioned between the stator 20 and the rotor 30 on the inner interface therebetween to prevent intrusion of contaminants from the external environment into the interior of the bearing isolator 10, and at the same time facilitate the maintenance of the lubricant in the bearing isolation. The inside of the device 10.

In the embodiment of the bearing isolator 10 as shown in Figures 2 and 3, the stator radial projections 28 are provided with outer grooves on the stator 20 for collecting contaminants. The first axial interface spacing 34a can be formed between the radially outer surface of the stator radial projection 28 and the radially inner surface of the rotor radial projection 38. The first radial interface spacing 34b can be formed between the axially outer surface of the stator axial projection 26 and the axially inner surface of the rotor axial projection 39. The rotor axial projection 36 having the rotor radial projection 38 can be configured to be disposed into the stator axial groove 29 to provide another axial interface spacing between the stator 20 and the rotor 30. .

In the illustrated embodiment of the bearing isolator 10, the rotor radial projection 38 (adjacent to the rotor axial outer surface 33) extends radially beyond the major diameter of the stator axial projection 26. This design allows the rotor 30 to surround the stator axial projection 26. This structure is also described in detail in U.S. Patent No. 6,419,233, the disclosure of which is incorporated herein. This radial extension is one of the key design features of the bearing isolator 10 disclosed herein. The first axial interface spacing 34a has an axial orientation that controls the entry of contaminants into the bearing isolator 10. By reducing or eliminating the effectiveness of the contaminants, the age and performance of the bearing isolator 10, the bearing 12, and the conductive segments 46 can be enhanced. The opening of the first axial interface spacing 34a faces rearwardly and toward the device housing 16 and away from the flow of contaminants, whereby the contaminant or cooling fluid is typically directed along the axis of the shaft 14, and The flow direction of the device housing 16 is directed.

To facilitate discharge of electrical energy on or adjacent to the axle body 14, the bearing isolator 10 can include at least one electrically conductive segment 46 disposed in the stator 20. The stator 20 can be provided with a conductive segment limiting chamber adjacent to the bearing 12. The conductive segment 46 of the conductive segment limiting chamber can be positioned and fixed therein such that the conductive segment 46 meets the shaft 14. When charge builds up on the shaft 14, the conductive segments 46 can dissipate this charge to the device housing 16 via the bearing isolator 10. The size and configuration of the conductive segment limiting chamber may depend on the application of the bearing spacer 10, and may also depend on the size and size of each conductive segment 46. Therefore, the size and configuration of the conductive segment annular channel are not particularly limited.

It is not preferable to arrange the conductive segment limiting chamber as an annular channel, and the main reason for this arrangement is inconvenience and difficulty in performance and manufacturing. One of the conductive segment limiting chambers is preferably a radial channel 52, as in the embodiment of CDR 40 shown in Figures 7-14, or an embodiment of a radial CDR 80 as shown in Figures 15A-15C.

In the illustrated embodiment, the bearing isolator 10 is provided with a receiving recess 24. The receiving recess 24 can be provided on the inner side of the bearing isolator 10 adjacent to the shaft 14, as shown in FIG. In general, receiving the recess 24 facilitates the placement of the CDR 40 within the bearing isolator 10. However, depending on the particular application of the bearing isolator 10, other configurations may be provided within the receiving recess 24.

The bearing isolator 10 as shown in Figures 2 and 3 can include a plurality of radial and axial interface passages between the stator 20 and the rotor 30 to allow the stator projections 26, 28 to be axially grooved with the rotor. 39 cooperates with each other and allows the rotor projections 36, 38 to cooperate with the stator axial grooves 29. It can be understood that the protrusions and the grooves can have a plurality of different configurations and/or orientations, and thus the protrusions and the grooves in the stator 20 and/or the rotor 30 can have a plurality of different configurations. And / or direction, without special restrictions. The bearing isolator 10 is also provided with any form of stator 20 and/or rotor 30, wherein the stator 20 can be configured with a conductive segment limiting chamber for maintaining at least one conductive segment 46 therein, or a receiving recess Etc., as detailed below.

As shown in the first embodiment of the current shunt ring (CDR) 40 shown in FIG. 4, and in the axial view of the embodiment shown in FIG. 5, the CDR 40 can be used for any rotation that is likely to accumulate charge in a portion thereof. Equipment such as electric motors, gearboxes, bearings and other equipment. The first embodiment of the CDR 40 can be designed to be disposed between the device housing 16 and the shaft body 14 projecting from the device housing 16 and is rotatable relative thereto.

In general, the CDR 40 includes a CDR body 41 that can be secured to the device housing 16. In the first embodiment, the first wall 43 and the second wall 44 extend from the CDR body 41 and define an annular channel 42. At least one conductive segment 46 is fixedly disposed in the annular channel 42 such that the conductive segment 46 and the shaft body 14 are in contact with each other, thereby generating a low impedance path between the shaft body 14 and the device housing 16.

Figure 6 is a cross-sectional view of the first embodiment of the CDR 40. As shown in FIG. 6, the axial thickness of the first wall 43 is less than the thickness of the second wall 44. In the first embodiment, the conductive segment 46 is limited to the annular channel 42 by first positioning the conductive segment 46 in the annular channel 42 and deforming the first wall 43 to reduce the first and the first The gap between the ends of the two walls 43, 44 is further achieved. The conductive segment 46 can be confined within the annular channel 42 by deforming the first wall 43. Depending on the material used to form the conductive segments 46, the deformation produced by the first wall 43 may press a portion of the conductive segments 46 to further securely position the conductive segments 46 relative to the shaft 14.

Figure 6 shows a detailed view of the radially outer surface 45 of the CDR. The CDR radial outer surface 45 can be configured with a slight angle in the axial length to allow the CDR 40 to be press fit into the device housing 16. In the first embodiment, the angle is 1 degree, but in other embodiments not shown, other larger or smaller angles may be used. Meanwhile, in the first embodiment, when the CDR 40 is mounted in the device housing 16, the first wall 43 is adjacent to the position of the bearing 12. However, in other embodiments not shown, when the CDR 40 is mounted in the device housing 16, the second wall 44 may also be adjacent to the bearing 12, so in this case, the CDR radial outer surface The angle of 45 will be at an opposite angle to that shown in FIG. The optimal size/direction of the CDR body 41, the annular channel 42, the first wall 43, the second wall 44, and the CDR radial outer surface 45 can be configured depending on the particular application of the CDR 40, so the CDR 40 is not limited to any The size and direction of these components.

As with the bearing isolators 10 described above, the CDR 40 with the conductive segment limiting chamber is not recommended to be provided as an annular channel, mainly because such a setting would have a undue influence on performance and manufacturing. Conversely, other embodiments of the CDRs described herein may be preferred as long as they do not have an annular channel 42 and are difficult to install.

In other examples of CDRs 40 as described below, the CDRs 40 can be mounted to the device housing 16 by mounting holes 54, straps 70, and lock attachments 72 provided on the CDR 40 or device housing 16. The CDR 40 can also be mounted to the device housing 16 by other suitable methods and structures while remaining within the scope and spirit of the CDR 40.

In the embodiment of CDR 40 as shown in FIGS. 4 and 5, three conductive segments 46 are disposed within annular channel 42. The optimum number of conductive segments 46, and the size and/or shape of each conductive segment 46 can be determined by the application of the CDR 40, and is not particularly limited. The optimum overall length of all conductive segments 46, and the total surface area at which the conductive segments 46 meet the shaft 14 may vary from application to application, and such features are not intended to limit the CDR 40 or provide conductive segments 46. The range of bearing isolators 10 (bearing isolators as shown in Figures 2 and 3).

In the embodiment shown in Figures 4-6, the CDR 40 can be sized to engage the bearing isolator 10 having the receiving recess 24, such as the bearing isolator 10 shown in Figures 2 and 3. 2 and 3, one embodiment of a bearing isolator 10 is designed to interface with a CDR 40. The receiving recess 24 can be an inner recess formed in the stator 20 that can be configured to accommodate the size and shape of the CDR 40 as shown in Figures 4-6. The CDR 40 can be press-fitted into the receiving recess 24, or it can be fixed to the stator 20 by any method or structure to operatively secure the CDR 40 to the stator 20. These methods include, but are not limited to, Such as screw sets, welding, etc. When the CDR 40 is properly engaged into the receiving recess 24 provided in the stator 20, the CDR radial outer surface 45 abuts against and contacts the inner surface of the receiving recess 24.

In any of the embodiments of the CDR 40 or the bearing isolator 10 provided with the conductive segments 46, the conductive segments 46 may be made of a carbon material so that they have electrical and natural lubricating properties. In one embodiment, the conductive segment 46 is made of a carbon mesh, and the carbon mesh may be a 447-1 material manufactured and designed by Chesterton, USA. In other embodiments, the conductive segments 46 are not coated with any layer on the outer surface of the carbon mesh. When the mesh or fabric material is used to make the conductive segments 46, the conductive segments 46 contact the surface of the shaft 14, which tends to be a worn or non-smooth surface, and thus can form appropriate characteristics to reduce rotational friction in some applications. . After the shaft 14 is rotated relative to the conductive segment 46 for a short period of time, some embodiments of the conductive segment 46 will wear on the surface of the shaft 14, so that the friction between the conductive segment 46 and the shaft 14 will cut back. The conductive segment 46 may be made of a fiber material or a solid material without particular limitation.

In general, it is preferred to ensure that the magnitude of the impedance between the shaft body 14 and the device housing 16 falls between 0.2 and 1.0 ohms to ensure that the charge accumulated on the shaft body 14 can be passed through the device. The housing 16 is discharged to the base of a motor (not shown) rather than through the bearing 12. Between the shaft body 14 and the device housing 16, the actual configuration between the bearing isolator 10 and the device housing 16, the bearing isolator 10 and the CDR 40, and/or between the CDR 40 and the device housing 16 can be There is a relatively small gap to reduce the impedance. Thus, the smaller the spacing between the bearing isolator 10 and the device housing 16, the bearing isolator 10 and the CDR 40, and/or the CDR 40 and the device housing 16, is between the shaft body 14 and the device housing 16. The impedance will be smaller.

In other examples not shown, a conductive filament (not shown) may be bonded to the CDR 40 or bearing isolator 10 or may be embedded in the conductive segment 46 for bonding to the CDR 40 or bearing isolator 10. These filaments may be made of aluminum, copper, gold, carbon, conductive polymers, conductive elastomers, and other electrically conductive materials having conductive properties suitable for the particular application. Any material having sufficient lubricity and low enough impedance can be used to fabricate the conductive segments 46 disposed in the CDR 40 and/or the bearing isolator 10.

In another embodiment of the CDR 40, not shown, the CDR 40 is attached to the shaft 14 and rotates therewith. The first and second walls 43, 44 of the CDR 40 extend from the shaft 14, and the CDR body 41 is adjacent to the shaft 14. When the shaft body 14 rotates, the centrifugal force of the rotation of the shaft body 14 can radially expand the conductive segments 46 and/or the conductive wires. This expansion allows the conductive segments 46 and/or wires to contact the device housing 16 and, in the case of oil or other contaminants and/or lubricants (which can cause an increase in impedance and thereby reduce the dissipative properties of the CDR 40) The ability to charge between the shaft 14 and the device housing 16 has been collected between the CDR 40 and the device housing 16 and may also form contact with one another.

In another embodiment, not shown, a conductive sleeve (not shown) may be provided on the shaft 14. This embodiment is particularly effective in the case where the shaft body 14 already has a worn or non-smooth surface which causes excessive wear on the conductive segments 46. The conductive sleeve (not shown) may be of any material suitable for the particular application, and the conductive sleeve (not shown) may also be designed to have a smooth, radially outer surface. A conductive sleeve (not shown) can be used to conduct electrical charge between the shaft 14 and the conductive segments 46 disposed on the CDR 40 or bearing spacer 10. At the same time, another embodiment has particular utility when the shaft 14 already has a worn or non-smooth outer surface, and wherein the conductive filaments or wires are inserted into the conductive segments 46. Such conductive filaments or wires may be consumable and may be filled into depressions or holes or the like on the surface of the shaft body 14.

In another embodiment, not shown, a conductive screw (not shown) may be formed from a suitable electrically conductive material that can be inserted into the conductive segment 46. Further, the hard spring conductive tube may be disposed in the radial direction of the CDR 40 and/or the bearing isolator 10 to contact the radially outer surface of the shaft body 14.

The CDR 40 shown in Figures 4-6, although of a design with comparable features, is not a preferred embodiment of the CDR 40, as previously described. Other embodiments of CDR 40 are preferred based on various considerations, including performance and manufacturing difficulties. In particular, the two-piece CDR 40 shown in Figures 7-14, the details of which will be explained below, and the embodiments of the radial CDR 80 shown in Figures 15A and 15B are also superior to those of Figures 4-6. The embodiment shown. Two-piece CDR embodiment

Figures 7-14 show a second embodiment of CDR 40. In a second embodiment of the CDR 40, the CDRs are formed by the inner body 50 and the outer body 60 engaging each other, but Figure 7 shows that the two are separated from each other but have an associated relationship. In the second embodiment of the CDR 40, the inner body 50 and the outer body 60 can be engaged with each other by fastening, fitting, or the like.

In a perspective view of one of the inner bodies 50 shown in Fig. 9, it is substantially annular. The inner body 50 can include at least one radial channel 52 disposed on an outer surface of the inner body 50, which can include a main aperture 58 for the shaft 14 to be positioned therethrough. In the embodiment shown in FIG. 9, it includes three radial channels 52. However, in other embodiments, a larger or smaller number of radial channels 52 may be provided, so the range of the CDR 40 is not limited. The specific number of radial channels. Each radial channel 52 can be formed with a dip portion 52a therein to more suitably secure a particular form of conductive segment 46. It can be understood that the capturing portion 52a is preferably used on the conductive segment 46 made of a deformable or semi-deformable material (as shown in FIG. 14B), but the capturing portion 52a can also be used to have different mechanical characteristics. The material is made of conductive segments 46. The radial channel 52 is shown as being oriented in the direction of the shaft 14 provided in the main bore 58. The inner body 50 may be provided with a ridge 56 on the radially inner and outer surfaces. This ridge 56 can be configured to engage an annular groove 64 formed in the outer body 60.

One or more mounting holes 54 may be provided in the interior of the inner body 50. In the embodiment shown in Figures 8-11, it is provided with three mounting holes 54. Mounting holes 54 can be used to place CDR 40 on device housing 16 or other structure as shown in FIG. The strip 70 or clip can be placed on the CDR 40 by means of a lock attachment 72, such as a screw or rivet, such that it can engage the mounting aperture 54, as shown in Figures 1 and 8B. The presence or absence of the mounting holes 54 depends on how the CDR 40 is mounted. For example, in the embodiment shown in Figures 14A and 14B, the inner body 50 does not include any mounting holes 54. It will be appreciated that such embodiments are preferably utilized within bearing isolator 10 and/or CDR 40 that may be crimped into device housing 16 or other structure.

As shown in the perspective view of the outer side body 60 shown in Fig. 12, it may have a substantially annular shape. Further, the side body 60 may be provided on a base 62 having an annular groove 64 formed on a radially inner surface. This annular groove 64 is defined by a first annular shoulder 65a and a second annular shoulder 65b. The radial projections 66 can extend radially inward from the base 62 to abut the first or second shoulders 65a, 65b. In the illustrated embodiment, the radial projection 66 is disposed adjacent the first annular shoulder 65a and includes a main bore 68 formed therein for the shaft 14 to pass therethrough.

The annular groove 64 can be configured such that the ridge 56 formed in the inner body 50 can engage the annular groove 64, thereby substantially securing the axial position of the inner body 50 relative to the outer body 60. As shown in Figures 10 and 14B, the ridge 56 can be inclined or tapered so that when the inner body 50 is forced into the outer body 60, the ridge 56 can slide over the second annular shoulder 65b and It enters into the annular groove 64 to secure the inner body 50 and the outer body 60. The engagement between the ridge 56 and the annular groove 64 can then prevent separation or detachment between the inner and outer bodies 50, 60, and the like. In other embodiments not shown, the ridges 56 are not limited to tapered structures. The ridge 56 and the base 62 can also be configured to form a tight fit to prevent separation or disengagement between the inner and outer bodies 50, 60, and the like.

As shown in FIGS. 14A and 14B, the inner body 50 and the outer body 60 can be configured such that the inner surface of the radial projection 66 has a diameter equivalent to the inner surface of the inner body 50, so that when the shaft 14 is mounted, The inner and outer bodies 50, 60 can have the same spacing. It will be appreciated that for most applications of the CDR 40, the mounting may be such that the surface as shown in Figure 14A is attached to the axially outer side of the device housing 16 or other structure. However, if the CDR 40 is coupled to the bearing isolator 10, the orientation of the CDR 40 can be adjusted such that the surface as shown in FIG. 14A faces the interior of the device housing 16 or other structure in which the bearing isolator 10 is disposed.

As shown in FIG. 11, a conductive segment 46 can be disposed in each of the radial channels 52. It can be understood that the radial channel 52 can be formed on the axial surface of the inner body 50, so that when the CDR 40 is assembled, it is disposed adjacent to the radial protrusion 66 of the outer body 60, as shown in FIGS. 14A and 14B. This orientation is set to fix the axial position of the conductive segments 46. As previously mentioned, the CDRs 40 of the radial channels 52 are provided for the limits of the conductive segments 46, as compared to the CDRs 40 having the annular channels 52. Typically, but still depending on the material of the composition, the conductive segments 46 can be configured to extend beyond the shorter diameter of the inner body 50 into the main bore 58 for contact with the shaft 14. The radial channel 52 can also be sized such that it does not intersect the outer annulus of the inner body 50. Such a configuration prevents the conductive segments 46 from coming into contact with the annular grooves 64 of the outer body 60.

The bearing isolator 10 and CDR 40 can be made of any machinable material such as stainless steel, bronze, aluminum, gold, copper, combinations thereof, or the like, or other materials having low impedance. The CDR 40 or the bearing isolator 10 can be coupled to the device housing 16 by flange mounting, tight fitting, etc., or by other structures or methods, such as through a plurality of strips 70 and lock attachments 72, and the like.

In some applications, the performance of the bearing isolator 10 can be enhanced by avoiding the use of the O-ring 18 and its mating grooves provided with the stator 20 and the rotor 30, as shown in Figures 2 and 3. An O-ring 18 (such as rubber and/or crucible) made of a high-impedance material will inhibit electrical conductivity between the bearing isolator 10 and the device housing 16, thereby reducing the overall dissipation of the bearing isolator 10 Performance. However, if the O-ring 18 is made of a low impedance material, it can be used in any application of the CDR 40 and/or the bearing isolator 10. The optimal size of the CDR 40, the inner body 50, the outer body 60, and other features, depending on the particular application of the CDR 40, should not be limiting as to the scope of the CDR 40. Second embodiment of single-piece CDR

Another embodiment of the radial type CDR 80 series CDR 40, as shown in Figs. 15A and 15B, has an annular structure and is provided with a main hole 88 at its center. In other examples of CDR 40, CDR 40 can also be mounted to a rotating device by any structure and/or method without particular limitation. In the embodiment of the radial type CDR 80 shown in Figures 15A and 15B, it includes three strips 70 bonded to the radial type CDR 80 by a lock attachment 72. Other lock attachments 72 can also be used to secure the bar 70 to the rotating device to secure the radial CDR 80 to the rotating device. In other embodiments of the CDR 80, the radially outer surface 85a of the radial CDR 80 is press fit into the rotating device housing 16 in a tight fit. However, the scope of the invention should not be limited to the method of installing the radial type CDR 80.

In the embodiment of the radial type CDR 80 as shown, it has a radial channel 82 extending from a radially outer surface 85a to a radially inner surface 85b. Each radial channel 82 can include a radial channel frame 83, as shown in Figure 15B. In the illustrated embodiment, the radial channel frame 83 can be disposed adjacent the radially inner surface 85b of the radial CDR 80.

The electrically conductive component 86 can be configured to be disposed in a fixed tight fit within the radial channel 82. In one embodiment of the conductive component 86 as shown in FIG. 15C, the conductive component 86 can include an engagement member 86a disposed primarily in the radial channel 82 and the contact portion 86b and extending radially inward from the radial channel 82. Out. The engagement member 86a can structure a component having the electrically conductive component 86 thereon, including but not limited to chemical adhesives, structural caps or pegs, combinations thereof, and the like. Other forms of conductive component 86 can also be used on the radial type CDR 80 without particular limitation.

The conductive component 86 in the radial type CDR 80 can be replaceable. That is, when the contact portion 86b of the conductive member 86 has been consumed or worn, or the conductive member 86 needs to be replaced for other reasons, the user can remove the conductive member 86 from the radial channel 82 and bring a new conductive Component 86 is inserted therein. Embodiment of multi-ring CDR

16A-16D show a first embodiment of a multi-loop CDR 100. The embodiment of the multi-ring CDR 100 is similar to the content of the two-piece CDR 40 as disclosed in Figures 7-14B. The multi-ring CDR 100 includes a restraining member 110 having at least two ring bodies 120 secured thereto. The restricting member 110 can be substantially annular and has a restricting member main hole 118 provided at a center thereof, and the restricting member main hole 118 can correspond to each of the ring main holes 128.

The restricting member 110 may be formed with a plurality of annular grooves 112a, 112b, 112c, 112d on the radially inner surface of the restricting member base 111 as a carrier surface of the plurality of rings 120. In the embodiment of the multi-ring CDR 100 as shown, it comprises a total of four ring bodies 120 and four annular grooves 112. However, in other embodiments, it may have a larger or smaller number of rings 120 and corresponding annular grooves 112, so the range of the multi-ring CDR 100 is not limited thereto.

The ring body 120 can be provided with a plurality of radial channels 122, such as the structure of the inner body 50 of the embodiment of the CDR 40 shown in Figures 7-14. The radial channels 122 are typically disposed on the axial surface 127a of the ring body 120. Conductive segments 116 may be disposed on each of the radial channels 122. At the same time, each radial channel 122 can be provided with a dip portion 122a to better limit the conductive segment 116.

The restrictor wall 114 can extend radially inwardly from the first annular groove 112a toward the restrictor main bore 118, which is as in the outer side body 60 of the CDR 40 embodiment as shown in Figures 7-14. Radial protrusion 66. In the illustrated embodiment, the restrictor wall 114 can be substantially perpendicular to the restraint base 111. The restrictor wall 114 can function as a barrier to the innermost ring body 120, as shown in Figures 16C and 16D. The inner axial surface 127a of the innermost ring body 120 can abut against the restrictor wall 114, thereby pressing the conductive segment 116 into and positioning the innermost ring body 120 between the ring body 120 and the restrictor wall 114. To channel 122. The annular radially outer surface 125 of the innermost ring body 120 can be coupled to the first annular groove 112a to secure the innermost ring body 120 to the restraint 110 by an interference fit.

The inner axial surface 127a of the ring body 120 directly outside the innermost ring body 120 can abut against the axial surface 127b outside the innermost ring body 120, thereby pressing the conductive segment 116 into and positioning the ring body 120. In the channel 122, it is disposed between the ring body 120 and the innermost ring body 120. The ring body radially outer surface 125 of the ring body 120 directly on the outer side of the innermost ring can be engaged with the second annular groove 112b, and the ring body 120 can be fixed to the limiting member by interference fit, such as Figures 16C and 16D are shown. This arrangement can also be used to interface all of the ring bodies 120 with the restraining members 110.

The outermost ring body 120 can be provided with a ridge 126 on the radially outer surface 125 of the ring body. The ridge 126 can have an angle that curves upwardly from the inner axial surface 127a to the outer axial surface 127b, such that the ridge 126 can be formed with the outermost annular groove 112 (referred to as shown in such an embodiment). The snap groove 113 of the fourth annular groove 112d) is engaged. Therefore, the outermost ring body 120 can be fixed to the restricting member 110, and all the other ring bodies 120 can be fixed by the ridge portion 126 and the snap groove 113. For example, the inner body 50 and the outer body 60 are engaged by the ridge 56 and the annular groove 64, and the inner body 50 and the outer body 60 included in the CDR 40 are as shown in FIG.

In another embodiment of the multi-ring CDR 100, the ring bodies 120 can be secured to the restraining member 110 by a lock attachment, such as the lock attachment shown in FIGS. 17A-17D. In this embodiment, the ring bodies 120 may include two annular segments 130, and the restricting member 110 may be provided with two separate components. The manner in which the innermost spaced annular segment 130 interacts with the restricting member 110 is similar to that of the first embodiment of the multi-ring CDR 100 described above. At the same time, the interaction between the adjacent segment ring segment 130 of the split multi-ring CDR 100 and the corresponding portion of the corresponding conductive segment 116 is similar to that of the first embodiment of the multi-ring CDR 100. In order to limit the partitioning ring segment 130 therein, the radial outer surface 125 of the ring body is closely matched with the interference between the annular grooves 112a, 112b, 112c, 112d each having the snap groove 113, and is located at the outermost annular concave The groove 112 cooperates with the ridge 126 provided on the outermost ring body 120 to achieve this. The interference fit securing mechanism can be implemented separately, or can be implemented with a plurality of lock attachments 72, or a plurality of lock attachments 72 can be implemented separately as a securing mechanism. If a lock attachment 72 is used, the annular segment 130 can be formed with a bore 132 to receive the lock attachment 72.

As shown in Figures 17A-17D, the backing ring 140 can be used in a particular implementation of the CDRs 40, 80, 100. The backing ring 140 can be composed of two different components that can pass through a plurality of corresponding alignment pin receiving portions 142, lock attachment holes 143, lock attachment receiving portions 144, and corresponding alignment pins 141 and lock attachments 72, Fixed to each other. In the embodiment shown in Fig. 17B, the two positioning pins 141 and the corresponding alignment pin receiving portion 142 can be positioned on the seam of the backing ring 140 to properly align the two components. Two lock attachments 72 are respectively disposed in the corresponding lock attachment holes 143 such that one of each lock attachment 72 is engaged with the corresponding lock attachment receiving portion 144, thereby fixing the two elements of the backing ring 140 to each other.

The backing ring 140 is configured to reduce the spacing between the two components to a minimum or imperceptible to prevent intrusion of contaminants and leakage of lubricant from the bearing locations. In order to achieve this effect, a circle can be cut along its diameter first. The two parts formed, when combined, will be removed due to the material being cut, resulting in an ellipse. Therefore, the two components can be machined to form a perfect round or nearly perfect circle. The alignment pin receiving portion 142 and the corresponding alignment pin 141 and/or the lock attachment hole 143 and the corresponding lock attachment 72 may be used alone or simultaneously to position the two components relative to each other during processing (as described above). ). The relative stability of the two components is important to form a perfect or nearly perfect round shape using the two components. Based on the above, the back ring main hole 168 and the O-ring channel 145 can be disposed in the backing ring 140 according to specifications. The apertures 146 can also be provided in the backing ring 140 as desired by the user, so that the backing ring 140 having a perfect or nearly perfect round shape can be accurately centered, the sleeve is provided with a shaft or other structure. Example of an adaptive CDR

18A and 18B show an embodiment of an adaptive CDR 160. This compliant CDR 160 is designed to be mounted on a variety of rotating equipment with different shapes. The mating CDR can include a plurality of radial channels 162 extending from the radially outer surface 165a to a radially inner surface 165b adjacent the main bore 168. Like the radial channels 82 in the radial CDR 80, the radial channels 162 disposed in the adaptive CDR 160 can include a radial channel frame 163. Thus, the electrically conductive component 86 can be secured in each of the radial channels 162.

It will be appreciated that the user may drill the hole on the outside of the rotating device such that the lock attachment 72 can pass through each of the slots 161 formed in the mating CDR 160. The adaptive CDR 160 can include a plurality of recesses 164 to facilitate accommodation of a plurality of rotating devices having different shapes. The compliant CDR 160 can have a port 166 that extends into the main aperture 168 to facilitate mounting the compliant CDR 160 to a shaft or other object. Example of curved CDR

The curved CDR 80a is another embodiment of the CDR 40. In the first embodiment of the curved CDR 80a, as shown in Figs. 19A-19C, it has a semi-circular configuration and has a centrally disposed main hole 88 and an arcuate slit 81. Figure 19A is a perspective view showing a first embodiment of an arcuate CDR 80a mounted on a shaft 14. Figure 19B is another perspective view showing the first embodiment of the curved CDR 80a, but the shaft 14 is not shown in the drawings and is shown in a view. Figure 19C is a radial cross-sectional view showing the curved CDR 80a as shown in Figures 19A and 19B. Figure 20A is a perspective view showing a second embodiment in which the curved CDR 80a is mounted around the shaft 14. Fig. 20B is another perspective view showing this embodiment of the curved CDR 80a, but the shaft 14 is not shown in Fig. 20B, and Fig. 20C is a radial sectional view thereof.

In the embodiment of the curved CDR 80a as shown, it is substantially identical to the radial type CDR 80 as shown in Figures 15A and 15B. However, since the curved CDR 80a is not a complete ring (but the radial type CDR 80 is), the curved CDR 80a is more easily mounted on a certain axial body 14 than the radial type CDR 80 in a specific application, just like an adapted type. The CDR 160 (shown in Figures 18A and 18B) can be more easily installed than the radial type CDR 80. In some embodiments of the curved CDR 80, it is preferred to utilize a sleeve (not shown), a plate (not shown) or other structure to position the curved CDR 80a relative to the shaft 14. It will be appreciated that in the embodiment of the curved CDR 80a as shown in Figures 19A-19C, it may utilize a structure extending from the shaft 14 to engage one or more mounting apertures 54 and lock attachments 72 for engagement. It will be appreciated that in the embodiment of the curved CDR 80a as shown in Figures 20A-20C, it may utilize a structure extending from the shaft 14 to mate with one or more bars 70 and one or more lock attachments 72. To connect. However, any structure and/or method suitable for securing the curved CDR 80a to a structure is possible without particular limitation.

In the embodiment of the curved CDR 80a as shown, it can be configured to extend the curved CDR 80a beyond the 180 degree of the circle. Specifically, the curved CDR 80a as shown is a shape having a shape of about 200 degrees in a circle. However, in other embodiments of the curved CDR 80a, the length may be greater than 200 degrees of the circle; and in other embodiments of the curved CDR 80a, the length may be less than 180 degrees of the circle.

In the embodiment of the curved CDR 80a shown in Figures 19A-19C, it includes three radial channels 82 extending from the radially outer surface 85a to the radially inner surface 85b. Each radial channel 82 can include a radial channel frame 83, as shown in Figure 19C. In the illustrated embodiment, the radial channel frame 83 can be disposed adjacent the radially inner surface 85b of the curved CDR 80a. In the embodiment of the curved CDR 80a shown in Figures 20A-20C, it includes four radial channels 82 disposed therein. The conductive component 86 can be used to securely position the radial channel 82 and the plug 87 on the conductive component 86, thereby securing the location of the conductive component 86, as in one embodiment of the conductive component 86 as shown in FIG. 15C. Different embodiments of the other conductive components 86 are also used in the curved CDR 80a without particular limitation. One embodiment of the plug 87 can be threaded and can mate with threads formed in the radial channel 82, as shown in Figure 19C.

The conductive component 86 in the curved CDR 80a can be replaceable. That is, when the contact portion 86b of the conductive member 86 has been consumed or worn, or the conductive member 86 needs to be replaced for other reasons, the user can self-align the conductive member 86 (and/or the plug 87 if there is such a member) from the radial direction. The channel 82 is removed and a new conductive component 86 is inserted therein. The scope of the present invention is not limited by the number of radial channels 82 provided in the curved CDRs 80a; likewise, the range of the curved CDRs 80a of the present invention is not limited by the number of conductive components. Another CDR embodiment

As an embodiment of the CDR 200' shown in Figures 21A and 21B, as illustrated, the embodiment of the CDR 200' can be configured to alert the user that the CDR 200' has been unable to properly dissipate current from the shaft 14 to the ground. The embodiment of the CDR 200' as shown is achieved by utilizing an indicator conductive component 214' that can be placed in an existing CDR 40 or integrated into an existing CDR 40. In another embodiment, the CDR 200' can be integrated into a separate structure adjacent to the existing CDR 40. The CDR 200' may be provided in or used in any of the CDRs 40, 80, 80a, 100, 160, 200, 202 without particular limitation.

In the illustrated embodiment, the indicator conductive component 214', the shaft 14, the second conductive component 216', and other electronic components, etc., can be configured to properly contact the shaft when the conductive components 214', 216' At body 14, it forms a circuit that allows current to flow therethrough. The indicator conductive component 214' can be substantially configured as the other conductive components 86 as previously described, and can employ the indicator engagement member 214a' and the indicator contact portion 214b'. Similarly, the second conductive member 216' may also be formed with a second engaging member 216a' and a second contact portion 216b'. However, any structure and/or method suitable for determining electrical contact between the indicators 216', 214' is possible, and the shaft 14 can also be used in the CDR 200' without particular limitation, except in this case. The scope of patent application is otherwise defined.

Power source 210' and indicator 212' can be integrated into the aforementioned circuitry as a structure/method that can alert the user when conductive component 86 is not functioning properly. Power source 210' and indicator 212' can be integrated in a variety of ways to achieve this. In one embodiment, the power source 210' is electrically coupled to the indicator 212' (containing the LED light) via the indicator conductive component 214', the shaft body 14, and the second conductive component 216'. The power source 210' can activate the indicator 212' by the indicator conductive component 214' until the circuit is turned on, or when the second conductive component 216' is no longer associated with the corresponding contact portion 216', 216b' of the shaft 14. When connected (ie, when the CDR 40 is unable to properly shunt current from the shaft 14 to the ground). Therefore, when the LED lamp (indicator 212' of this embodiment) is no longer illuminated, the conductive component 86 should be replaced.

In another embodiment, the switch 213' can be electrically coupled to the power source 210' and the indicator 212'. Such components can be configured such that when the user turns on the switch 213', if both the indicator conductive component 214' and the second conductive component 216' are in proper contact with the shaft 14, the indicator 212' will be transferable News. For example, if the indicator 212' is provided with an LED light, the light can be illuminated when the user turns on the switch 213'. Alternatively, indicator 212' can be a sound device or a combination of visual and audible devices. Thus, CDR 200' is not limited to a particular indicator 212', and indicator 212' can be configured to alert the user whether indicator conductive component 214' and second conductive component 216' have properly contacted shaft body 14. .

In another embodiment of the CDR 200', when the indicator conductive component 214' and/or the second conductive component 216' no longer properly contact the shaft 14, the indicator 212' is functional, as opposed to the previous embodiment. . In embodiments where the indicator 212' acts due to improper contact, one of the indicator conductive component 214' and/or the second conductive component 216' can be configured to have its corresponding contact portion 214b', 216b When an abrasion is caused to some extent, an auxiliary member (not shown) can be in contact with the shaft body 14. When the auxiliary member is in contact with the shaft 14, the circuit including the power source 210' and the indicator 212' will form a closed circuit. Alternatively, a conductive member having a different configuration and/or size (eg, shorter) than the indicator conductive component 214' and/or the second conductive component 216' may also be disposed within one of the conductive components 214', 216' Therefore, when the conductive member is in contact with the shaft 14, the indicator 212' will function.

The CDR 200' can also be integrated into a lock attachment 72 for mounting the CDR 40 to the device housing 16. In this embodiment of CDR 200', the particular lock attachment 72 can be electrically isolated from other lock attachments 72 attached to the CDR 200' to ensure proper functioning. In this embodiment, the current discharged from the bearing 12 to the device housing 16 causes the indicator 212' to act as if the discharge current flowed through the lock attachment 72 that is in contact with the CDR 200'.

These or other embodiments of CDR 200' may also have other features. For example, a radio frequency identification tag (RFID tag, not shown) can be integrated into the circuitry of the CDR 200'. The circuitry of CDR 200' may also include a micro PLC that can be used to collect and record a variety of data relating to CDR 200', CDR 40, bearing isolator 10, and/or equipment. The RFID tag also simplifies the maintenance of the various devices, CDR 200', CDR 400 and/or bearing isolator 10 in any situation.

In another embodiment of CDR 200', the circuitry may also include a microprocessor (not shown) to perform various functions associated with CDR 200', bearing isolator 10, and/or device. The microprocessor can be configured with wireless transmission modules such as Bluetooth, short wave infinite transceivers, multiple 802.11 protocol devices, and/or other suitable wireless transmission systems. When the CDR 200' is provided with this device, the system can monitor the condition of the service personnel remotely by the user. The CDR 200' can be transmitted in a wired or wireless manner with a well-programmed CPU (not shown) to communicate and/or record operational data and to alert the user to a particular condition. In other embodiments of CDR 200', it may also have wireless transmission capabilities without the use of a microprocessor.

Figure 21C shows an embodiment of the wireless form of CDR 200'. It will be understood by those of ordinary skill in the art that CDR 200' can have a wide variety of possible implementations, operational parameters, and the like to monitor/record/deliver data. As shown, the sensor can also be transmitted with the transmitter. The transmitter can be configured to wirelessly communicate with network nodes and/or other wireless devices such as smart phones, computers, and the like. Network nodes and/or other wireless devices may be inter-transmitted with a network of particular applications, such as regional networks, wide area networks, or other transport networks, suitable for the CDR 200'. As shown, the sensor interface can be transmitted to the transmitter, and/or the transmitter can be transmitted to the network node and/or other wireless device by appropriate protocols, including but not limited to IEEE 1451, IEEE. 802.15, Bluetooth, etc. As shown, the network and adapters may include, but are not limited to, a field bus, a profibus, a Mod bus, a Can Open, a contact bus, and/or a device net.

The CDR 200' may also use any other structure and/or method that can be used to warn the user that the conductive component 86 has not been properly contacted with the shaft body 14, and the function and/or method of the function is still not inconsistent with the spirit and scope of the present invention. Whether the structure and/or method must include a warning by the user taking an active step (such as pressing a button, scanning frequency, etc.).

The operation of the CDR200' can be achieved by other different electronic components, such as capacitors, resistors, poles, etc., which are not shown in the figure, but are not limited by the overall figure. The scope of CDR200'. All of the electronic components that can facilitate the operation of the CDR 200' can be disposed within the chamber (not shown) of the body of the CDR 40 and/or the aforementioned bearing isolator 10. Alternatively, the CDR 200' and/or its particular components may be provided in a shaft grounding device, shaft seal or other suitable rotating device not disclosed herein. Capture CDR

22A-22C show a first embodiment of a snap CDR 200. As with other embodiments of the CDR 40 described above, the snap-on CDR 200 can be mounted to the bearing isolator 10 or can be mounted directly to the device housing 16 by any structure and/or method for the CDR 40. The first embodiment employs an open face, as shown in Figure 22B, as a front perspective view of the fully assembled snap-on CDR 200.

The body 210 can include a base 212 that extends along the axis of the body main bore 218 and a body wall 214 that extends perpendicular to the base 212. In this embodiment, the body 210 can include a radially outer surface 215a and a radially inner surface 215b. The radially outer surface 215a can abut directly against the device housing 16 by a tight fit design. The body wall 214 can be provided with one or more pulley grooves 216 on its inner surface. The pulley 217 can generally include a ring-shaped, low-friction and/or low-wear material that can be disposed within the pulley groove 216 to reduce frictional losses between the body 210 and the rotor body 220, as described below. It will be appreciated that other embodiments of the pulley 217 may also be made of PTFE or other suitable material without particular limitation.

The rotor may comprise two separate elements - a rotor body 220 and a rotor ring 230. The rotor body 220 may also have a substantially annular shape and have a base 222 and a rotor body bore 228 disposed at the center. The flange 221 can extend radially outward from the base 222. A snap channel 226 can be formed on the radially outer surface of the base 222, and a drive ring groove 224 can be formed on the radially inner surface of the base 222. The drive ring 239 can be disposed in the drive ring recess 224 and can be tightly secured around the shaft body 14 to be positioned concentrically with the rotor body bore 228. The drive ring 239 can be configured to couple the rotor body 220 to the axle body 14, such that the rotor body 220 can rotate with the axle body 14. Drive ring 239 can be made of any material suitable for a particular application, including but not limited to carbon fiber fabrics, solid conductive segments, conductive polymers, and/or combinations thereof, and the like. Therefore, the range of the capture CDR 200 is not limited by the material of the drive ring 239.

The rotor ring 230 can also have an annular shape and be disposed substantially centrally with the rotor annular main bore 238. The rotor ring 230 is disposed within the inner axial surface 237a of the rotor ring 230 and may be provided with a plurality of radial channels 232. Each radial channel 232 can be provided with a capture portion 232a to facilitate the restriction of the conductive segments 116, as shown in other embodiments of the CDR 40 described above. When the snap-on CDR 200 is assembled, the inner axial surface 237a of the rotor ring 230 can be placed in contact with the inner surface of the flange 221 of the rotor body 220, as shown in Figure 22C. The rotor ring 230 can also be provided with a ridge 236 that surrounds the circumference of the rotor annular main bore 238.

The distal end of the conductive segment 116 can be disposed in the radial channel 232, and the rotor ring 230 can be pressed over the base 222 of the rotor body 220. When the rotor ring 220 is pressed over the base 222 of the rotor body 220, the ridge 236 at the rotor ring 230 can be used to snap to the snap channel 226 formed in the base 222 of the rotor body 200, thereby causing the rotor ring 230 The rotor body 230 is coupled to the rotor body 220 so that the rotor ring 230 can rotate with the rotor body 220 (and can also rotate with the subsequent axle body 14). Therefore, the distal end of the conductive segment 116 can be coupled to the radial channel 232 formed in the rotor ring 230, and can be disposed between the flange 221 of the rotor body 220 and the rotor ring 230, so that the conductive portion can be accurately Segment 116 is limited to it.

In operation, body 210 is substantially stationary, while rotor body 220 and rotor ring 230 generally rotate with shaft 14. The body wall 214, the radially inner surface 215a of the base 212 of the body 210, and the annular radially outer surface 235 of the rotor ring 230 can interact to form a limiting chamber 223 for the non-distal portion of the conductive segment 116. Partially positioned in it. The centrifugal force generated by the rotation of the rotor body 220 and the rotor ring 230 is applied to the conductive segments 116 such that one portion of the conductive segments 116 is in contact with the radially inner surface 215b of the base 212 of the body 210. Thus, the drive ring 239 can conduct charge to the rotor body 220, conduct the charge to the rotor ring 230, conduct the charge to the conductive segments 116, conduct the charge to the body 210, and finally to the device housing 16.

22A, a rotor ring 230 includes a rotor ring flange 233 extending radially from the rotor ring 230 and adjacent to the axial surface 237b of the rotor ring 230. . In this embodiment, the rotor ring flange 233 can interact with other surfaces to close the limit chamber 223, thereby increasing the useful life of the conductive segments 116 for a variety of applications.

23A-23D show another embodiment of a capture CDR 200. In this embodiment, the rotor generally includes a rotor ring 230. The body 210 can still include a base 212 having a cover interface surface 213 at the end, and a body wall 214 extending radially inward from the base 212, as shown in Figure 23D. The body wall 214 can be provided with at least one pulley groove 216 therein. Pulley 217 can be positioned in pulley groove 216 to reduce friction and/or wear between moving parts, as in other embodiments described above. The cover interface surface 213 can be provided with at least one receiving portion 219 for engaging the cover 240 to the main body 210, as follows.

In this embodiment, the rotor ring 230 can be provided with at least one radial channel 232 extending from the annular radial outer surface 235 to the rotor annular main bore 238. 23E is a detailed view of the rotor ring 230. The segment recess 234 can be configured to surround the rotor annular main bore 238 and between the two adjacent radial channels 232. The conductive segment 116 can be positioned such that its distal end extends beyond the radial channel 232 and its interior to be within the segment recess 234. When assembled, the inner axial surface 237a of the rotor ring 230 can abut the body wall 214, as shown in Figure 23C, so that the axial cross-section of this embodiment of the capture CDR 200 can be provided upon assembly. The portion of the conductive segment 116 that is positioned in the segment recess 234 can be configured to engage the shaft 14 such that the rotor ring 230 can rotate with the shaft 14.

A generally annular cover 240 can have a cover main aperture 248 formed substantially at the geometric center of the cover 240. The cover 240 can be provided with at least one pulley recess 246 in the cover axial surface 247a, as shown in Figure 23C, and in which the pulley 217 can be positioned, having the effect of reducing friction and/or wear as previously described. The cover 240 can be coupled to the main body 210 by a plurality of lock attachments 72 and pass through the holes 249 provided in the cover 240, and can be coupled to the receiving portion 219 provided on the main body 210. When the cover 240 is coupled to the body 210, the body wall 214, and the radially inner surface 215b of the body 210, the axially inner surface 247a of the cover 240 can interact to form a limiting chamber 223 for each of the conductive A portion of segment 116 is positioned therein.

In other embodiments of the snap-on CDR 200, the operation of the body 210 is substantially stationary, and the rotor ring 230 is generally rotatable with the shaft 14. Due to the centrifugal force applied to the conductive segments 116 due to the rotation of the rotor ring 230, one of the conductive segments 116 can be brought into contact with the radially inner surface 215b of the base 212 of the body 210. Thus, the conductive segments 116 can transfer charge from the shaft body to the body 210 and then to the device housing 16. Explosion-proof CDR

Some embodiments of the explosion-proof CDR are configurable to comply with the explosion-proof and dust-proof electrical equipment specified in the ATEX 95 Equipment Catalogue 94/9/EC, and/or UL 1203. The requirements for compliance include the following certifications: (1) UL Category I/II Group 2; (2) ATEX EX Group II, Equipment Category 3 (G, Zone 2; D, Zone 22); and (3) Mining Certification, equipment category 1/2 and Zone 0, 1/20, 21. When an embodiment of the explosion-proof CDR 202 is mounted to an explosion-proof certified motor, an explosion-proof certified system can be formed without additional testing and/or certification. However, the explosion-proof CDR 202 is not limited to a specific certification, standard, and/or certification unit.

24A-24E show a first embodiment of an explosion proof CDR 202. The first embodiment of the explosion-proof CDR 202 can be configured to engage a housing (not shown) by one or more lock attachments 205 and through corresponding apertures formed in the cover flange 272. As with the bearing isolator 10 and other CDRs 40, 80, 80a, 100, 160, 200, and/or the capture CDR 200 as previously described, any suitable mounting structure and/or method can be used with any embodiment of the explosion proof CDR 202. Medium without special restrictions. Therefore, it can be used to precisely install a specific structure and/or method of an explosion-proof type CDR 202, and is not intended to limit the scope of the invention disclosed and claimed.

Please refer to Figures 24C and 24D. The first embodiment of the explosion proof CDR 202 can include a cover 270 formed with a cover flange 272 surrounding a portion thereof. A central aperture may be provided in the cover 270 for receiving the sleeve 204 and/or the shaft 207. It will be appreciated that in most applications, the shaft 207 can be rotated relative to a device, such as an electric motor (not shown) or the like. The cover 270 can be formed with a cover axial inner surface 271a and a cover axial outer surface 271b that can extend to the cover flange 272 as shown in Figure 24D. It will also be appreciated that for most applications, the cover axially inner surface 271a can be disposed to abut the housing from which the shaft 207 protrudes. The interface between the axial inner surface 271a of the cover and the interface between the housings may be sealed, and/or one or more sealing members (such as O-rings) may be separately disposed between the cover 270 and the housing. It can be combined with a deformable material to ensure the correct flame path is defined. The deformable material may include, but is not limited to, an epoxy, a chemical adhesive, a ceramic, a metal, a polymer, and/or a combination thereof.

The cover 270 can be formed with a cover body 276 extending axially from the cover flange 272. The cover body 276 can be provided with a plurality of body radial holes 276a for receiving the conductive components 259 and/or the plug 257 therein. Each body radial bore 276a can extend from the outer surface of the cover body 276 into the central opening of the cover 270 (as shown in Figure 24D). An embodiment of the explosion-proof CDR 202 shown in Figures 24A-24E can include six body radial holes 276a and six corresponding conductive components 259 and plugs 257. However, the optimum number of main body radial holes 276a, conductive members 259, and/or plugs 257 may vary depending on the application of the explosion proof CDR 202, and the number thereof is not intended to limit the scope of the present invention.

The conductive component 259 and/or the plug 257 can be electrically connected to the shaft 207 and/or the sleeve 204 like the conductive components 86, 214' as described above. Alternatively, the conductive component 259 can also comprise any structure and/or manner to provide a suitable conductive path for directing current from the shaft 207 and/or the sleeve 204 to the explosion-proof CDR 202, and which can also assist in the conductive component 259 A portion is correctly confined within the cover 270. In another embodiment, the plug 257 can be coupled to the cover 270 by a generally threaded thread to facilitate its removal/installation; however, any suitable structure and/or method can be suitably used for the plug 257 and/or Or the conductive component 259 having the cover 270 is engaged without particular limitation. It can be understood that one part of the conductive component 259 can be in contact with the shaft body 207, and the other part can be simultaneously contacted with one of the stator 250 and/or the cover body 270 to directly conduct current from the shaft. The body 207 is transferred to the device housing (not shown) via the explosion-proof CDR 202. The cover body 276 can be formed with a cover axial projection 274 and a cover recess 273 (shown in Figures 24D and 24E) adjacent to the end of the cover body 276. In the embodiment of the explosion proof CDR 202, the radially inward portion of the body radial bore 276a can be interleaved with the cover recess 273. The distal axial surface of the cover body 276 can define one or more lock attachment receivers 206 for mating engagement with one or more lock attachments 205 to engage the stator 250 to the cover 270, as described below.

The first embodiment of the explosion-proof CDR 202 can also include a stator 250 that mates with the cover 270. The geometry and various interface surfaces (also referred to as "flame paths") between the regions adjacent to the cover recess 273 and the exterior of the explosion-proof CDR 202 can be specially designed (eg, between the stator 250 and the cover 270). The width, length, transition zone, etc. of the interface between the two can be determined by the above-mentioned standards or other standards without particular limitation. In general, if a flame and/or spark is generated from the explosion-proof CDR 202, the flame will move outward therefrom. Usually, the flame path is designed to have sufficient distance and volume to the outside of the explosion-proof CDR202, so that when the flame leaves the explosion-proof CDR202, the flame can be effectively cooled, and the external substance of the explosion-proof CDR202 (such as gas) cannot be , steam, etc.) produce a burning effect. Often, this design requires a flame path with a relatively fine tolerance.

The stator 250 can be formed with a central bore for receiving the sleeve 204 and/or the shaft 207. The stator 250 can include an axial projection 254 that can be configured to encircle the entirety or a portion of the cover body 276 (as shown in Figure 24D). The stator radial outer surface 215a can be disposed toward the outside environment, and the stator radial inner surface 251b can be disposed toward the shaft body 207 and/or the sleeve 204. The stator 250 can also include a sub-groove 253 configured to interact with the cover axial projection 274 (as shown in Figures 24D and 24E), such that the contact portion of the conductive component 259 can be disposed in the cover recess 273. And adjacent to the stator groove 253. As previously mentioned, the structure of the plurality of interface channels between the stator 250 and the cover 270 can vary from application to application and can be specifically designed for authentication and/or other certification specifications as described above.

The stator 250 can be coupled to the cover 270 by one or more lock attachments 205, and can pass through corresponding holes provided in the stator 250, and with one or more of the aforementioned lock attachment receiving portions provided on the cover body 276. 206 is connected. In general, it will be appreciated that in most applications, the explosion-proof CDR 202 is preferably such that the stator 250 can be securely and securely coupled to the cover 270. However, the scope of the explosion-proof CDR 202 is not limited thereby. Accordingly, any suitable structure and/or method for engaging the stator 250 with the cover 270 is possible for a particular application of the explosion proof CDR 202 without particular limitation.

In a first embodiment of the explosion proof CDR 202, the sleeve 204 can be coupled to the shaft 207. The sleeve 204 can be formed with one or more sleeve recesses 204a on its surface and in use adjacent to the shaft body 207. An O-ring 209 can be disposed within the sleeve recess 204a to engage the sleeve 204 to the shaft 207 and allow the sleeve 204 to rotate with the shaft 207. The O-ring 209 can be made of a low-impedance or relatively low-impedance material, including but not limited to, a material having a buried and/or doped silver and/or aluminum material, a metal braid, and other conductive composites. And / or a combination thereof. This O-ring 209 for a particular application is available from Kemtron Co. of Braintree, Essex, UK, and is made of a fully hardened crucible and/or fluorosilicone. (fluorosilicone) and made of highly conductive particles, which may include, but are not limited to, silver, aluminum, other metal composites, other conductive composites, and/or combinations thereof, and the like. O-ring 209 can be configured to ensure current compatibility and at the same time provide low contact resistance between the contact surfaces. Furthermore, if any of the drive rings and/or O-rings can be used in any of the embodiments of the bearing isolators and/or CDRs, the drive rings and/or O-rings can also be Requirements are set without special restrictions.

In another embodiment, the sleeve 204 can be coupled to the shaft 207 by a chemical adhesive, and/or the sleeve 204 can be configured as a conductive tape or other self-adhesive component. In other embodiments of the sleeve 204, it may be disposed on the shaft body 207 (such as an interference fit), or may be attached by other mechanisms (such as screws, bolts, etc.), welding, and/or the like. The combination, etc., to connect with it. Therefore, the range of the explosion-proof CDR 202 is not limited by the presence or absence of the sleeve 204, and at the same time, when the sleeve 204 is disposed, it is used to accurately connect the sleeve 204 to the specific structure of the shaft 207 and / or method, is not intended to limit the scope of the explosion-proof CDR202, unless otherwise defined in the scope of the patent application. When the stator 250 and the cover 270 are coupled to each other, the length of the sleeve 204 of the first embodiment of the explosion-proof CDR 202 is substantially equivalent to the axial dimension of the explosion-proof CDR 202, wherein the sleeve 204 is axially sized. The upper system is slightly offset from the outer side of the explosion-proof CDR 202 (as shown in Fig. 24D).

The use of sleeve 204 can have a number of advantages. First, it allows the manufacturer and/or user to accurately control the error between the conductive component 259 and the rotating component (such as the sleeve 204, the shaft 207) to facilitate the flame of the explosion-proof CDR 202. The design of the path. Second, the use of the sleeve 204 may also allow the designer to overcome the problem of defining a flame path that cannot be precisely machined with the shaft 207. The outer surface of the shaft 207 is typically an irregular, non-uniform surface or made of materials that are susceptible to erosion, cavities, and/or other degradable materials. It will be appreciated that the sleeve 204 is useful in applications that require a smooth, consistent surface between the rotating component and the shaft grounding device, including but not limited to the bearing isolators 10 and/or as previously described. Or CDRs 40, 80, 80a, 100, 160, 200', capture CDR 200, and/or explosion proof CDR 202. The sleeve 204 can be formed with a smooth, uniform outer surface to provide an optimal surface for contact with the conductive insert 259 or other conductive member. It can be understood that when the sleeve 204 is used together with the shaft grounding device, the performance and service life of the shaft grounding device can be increased.

As previously mentioned, the sleeve 204 can include one or more sleeve recesses 204a formed in its inner surface that, in use, are adjacent to the outer surface of the shaft 207. In the illustrated embodiment, it has three sleeve recesses 204a, wherein the axial relief of each sleeve recess 204a can be defined by the end wall on the first side and the inner wall on the second side. . Other embodiments of the shaft sleeve 204 may include a greater or lesser number of sleeve recesses 204a without particular limitation. Meanwhile, in this embodiment, the height of each end wall is the same as the inner wall, but this structure should not be used as the limit sleeve 204.

As previously mentioned, the O-ring 209 can act as a drive ring and can be disposed within each of the sleeve recesses 204a. It will be appreciated that the O-ring 209 can engage the sleeve 204 to the shaft 207, thereby rotating the sleeve 204 with the shaft 207. It will also be appreciated that the O-ring 209 can be constructed of a low impedance material such that current can be easily transferred from the shaft 207 to the sleeve 204 via the O-ring 209 and can flow through the shaft grounding device. It will be appreciated that an O-ring 209 can be provided in each of the sleeve recesses 204a, as the sleeve 204 described herein is not so limited. O-ring 209 can be made of any material suitable for the particular application of sleeve 204. For example, it will be appreciated that in some embodiments, the O-ring 209 can be made of a synthetic, low-impedance rubber or rubber-like material. However, in other embodiments of the O-ring 209, it can be made from metal coated fibers. Therefore, the particular material used for the O-ring 209 should not limit the extent of the sleeve 204.

25A and 25B show another embodiment of the explosion-proof type CDR 202. In this embodiment, the explosion-proof CDR 202 includes a stator 250 and a rotor 260. As with some embodiments of the capture CDR 200 described above, the stator 250 can be mounted to a housing (not shown) of a device and has a shaft 207 projecting outwardly therefrom. The rotor 260 can be mounted to the shaft 207 for rotation therewith. In the embodiment of the explosion-proof CDR 202 shown in FIG. 25A, the stator 250 can be provided with one or more radial holes 252. The radial holes 252 can be used to accommodate the conductive component 259 such that one portion thereof is in contact with the shaft body 207, as in other embodiments of the aforementioned explosion-proof CDR 202, without particular limitation.

Referring to Figure 25B, which is an axial cross-sectional view of the embodiment of the explosion proof CDR 202. The cover 270 can be used to engage a portion of the stator 250 to partially encase one of the rotors 260 within the stator 250 and the cover 270. The cover 270 can utilize the lock attachment 205 to engage the stator 250 as shown in Figure 25A. Alternatively, the cover 270 can be coupled to the stator 250 by any structure and/or method suitable for the particular application of the explosion-proof CDR 202, including but not limited to chemical adhesives, interference fits, and soldering. And / or a combination thereof. Depending on the particular embodiment of the explosion-proof CDR 202, the cover 270 can be provided with a plurality of cover lock attachment channels 278 corresponding to the lock attachment channels 258 formed in the stator 250.

The rotor 260 can be mounted to the shaft 207 for rotation therewith. In the embodiment of the explosion-proof CDR 202 with the rotor 260 as shown, a plurality of O-rings 209 are utilized to mount the rotor 260 to the shaft 207. However, any method and/or structure suitable for the particular application of the explosion-proof CDR 202 is possible without particular limitation, including but not limited to adhesives, interference fits, welding, screw sets, and/or Or a combination thereof.

In an embodiment of the explosion proof CDR 202, the stator 250 can include a stator radial outer surface 251a that can be staggered with the ends of the radial bores 252. The stator 250 can also include a stator radially inner surface 251b that faces the rotor 260 (if present in an embodiment of the explosion proof CDR 202). An embodiment of the stator 250, as shown in Figure 25B, may be provided with one or more stator recesses 253 to correspond to one or more of the rotor axial projections 264 and/or the radial projections 265. The stator 250 can also include one or more axial projections 254 and/or radial projections 255 that can correspond to one or more rotor recesses 263 and/or cover recesses 273. One of the stator radial projections 255 (generally toward the left side of FIG. 25B) on the apparatus side of the explosion-proof CDR 202 can extend toward the axle body 207 to form a tight gap between the stator radial projections 255 and the axle body 207. A plurality of interface channels between the stator 250 and the rotor 260, the stator 250 and the cover 270, and/or between the rotor and the cover 270 can be configured to enable the explosion-proof CDR 202 to meet the conditions of a particular certification.

Referring again to FIG. 25B, in an embodiment of the explosion-proof CDR 202, it may include a rotor 260 having a portion of the rotor radially outer surface 261a facing the stator 250 and a rotor radial direction toward the shaft 207. Inner surface 261b. One or more O-shaped channels 266 may be provided on the rotor radial inner surface 261b to receive the O-ring 209 and mount the rotor 260 to the shaft 207 in a desired manner. As previously mentioned, other methods and/or structures may also be used to mount the rotor 260 to the shaft 207 without particular limitation. It can be understood that if an O-ring 209 is used, it is preferable that the O-rings 209 are made of a material having sufficient conductivity. The rotor 260, in the embodiment of the explosion-proof CDR 202 shown in FIG. 25B, can include a rotor radial projection 265 having one or more rotor axial projections 264 extending therefrom, the projections 264, 265 can interact with one or more of the stator grooves 253 and/or the cover grooves 273 to form a flame path that conforms to the certification specifications as previously described. The extreme end of the rotor radial outer surface 261a can interact with the stator radial inner surface 251b to define an interface channel 256 between the stator 250 and the rotor 260 that can be positioned in one of the conductive assemblies 259 therein. It can be understood that one portion of the conductive component 259 can be in contact with the shaft 207, and the other portion can be simultaneously in contact with the stator 250 to facilitate direct conduction of current from the shaft 207 through the explosion-proof CDR 202 to the device housing. (not shown).

In the embodiment of the explosion-proof CDR 202, it may include a cover 270 provided with a cover axial inner surface 271a, and one of the surfaces is abutted against the stator 250, and the cover axially outer surface 271b Part of it is exposed to the outside environment. One or more cover recesses 273 may be provided in a portion of the axially inner surface 271a of the cover. Thus, the cover 270 can be provided with one or more cover axial projections 274 and/or cover radial projections 275 for engagement with the rotor recess 263 and/or the rotor axial and/or radial projections 264, 265 interact to form the desired flame path. One of the cover radial projections 275 on the outer side of the explosion-proof CDR 202 (generally facing the right side as shown in FIG. 25B) can extend toward the shaft 207 to form a relative between the cover radial projection 275 and the shaft 207. A tighter gap.

26A and 26B show another embodiment of an explosion-proof type CDR 202. This embodiment employs a stator 250 without a rotor 260. The stator 250 is in the embodiment of the explosion-proof CDR 202, and its structure is similar to that of the radial type CDR 80 as described above. The stator 250 can be provided with one or more radial apertures 252 for receiving the conductive insert 259 and the plug 257, if desired, in substantially the same manner as described in other embodiments of the aforementioned explosion-proof CDR 202. At the same time, in the embodiment of the explosion-proof CDR 202, the stator 250 can be directly coupled to the housing. The stator 250 can be provided with one or more lock attachment channels 258 for the corresponding lock attachment 205 to be inserted therein to mount the stator 250 to the housing. As with the bearing spacer 10 and other CDRs 40, 80, 80a, 100, 160, 200, and/or the captured CDR 200, any structure and/or method suitable for mounting the stator 250 to the housing is possible. . Accordingly, it is contemplated that the particular structure and/or method used to mount the stator 250 should not limit the scope of any of the explosion-proof CDRs 202 described.

Please refer to Figures 26A and 26B again. The embodiment of the explosion-proof CDR 202 can also include a cover 270 having a cover inner axial surface 271a, a portion of which is adjacent to the housing when in use. The cover 270 can also include a cover outer axial surface 271b opposite the housing. The cover 270 can include a cover flange 272 to provide additional surface area such that the cover axially inner surface 271a can be disposed adjacent to the housing. The cover 270 can also include a cover recess 273 for receiving the stator 250. The cover 270 can be provided with one or more cover lock attachment channels 278 such that the corresponding lock attachment 205 can be passed through and inserted therein, and the cover 270 has been mounted to the housing. As with the bearing spacer 10 and other CDRs 40, 80, 80a, 100, 160, 200 and/or the captured CDR 200, any mounting structure and/or method suitable for mounting the cover 270 to the housing is possible. of. Accordingly, the particular structure and/or method that can be used to mount the cover 270 is not intended to limit the scope of any of the explosion-proof CDRs 202 described herein. In order to properly define the flame path, a deformable material (not shown) having the required electrical and mechanical properties may be disposed between the axially inner surface 271a of the cover and the housing, and may be adjacent to case.

27A and 27B show another embodiment of an explosion-proof type CDR 202. This embodiment is similar to the embodiment described in Figures 26A and 26B, which does not use the rotor 260. However, in this embodiment, the stator 250 can be mounted to a portion of the axially inner surface 271a of the cover 270 rather than mounting the stator 250 to the housing. Therefore, it can be understood that the cover 270 in the embodiment of the explosion-proof type CDR 202 can be directly mounted to the housing.

28A and 28B show another embodiment of an explosion-proof type CDR 202. This embodiment is similar to the embodiment illustrated in Figures 25A and 25B, which uses a stator 250 and a rotor 260. However, in the embodiment of the explosion-proof type CDR 202, the stator groove 253, the axial and radial protrusions 254, 255 of the stator 250, the rotor groove 263, the rotor axial and radial protrusions 264, 265, the cover body The grooves 273, and the cover axially interact with the radial projections 274, 275 to form a flame path that is different from the embodiment of the explosion proof CDR 202 as shown in Figures 25A and 25B. Thus, the rotor 260 of the embodiment of the explosion-proof CDR 202 is shown in Figures 28A and 28B, and may be provided with a rotor radial projection 265 having a rotor axial projection 264 extending therefrom.

29A and 29B show another embodiment of an explosion-proof CDR 202. This embodiment is similar to the embodiment illustrated in Figures 25A and 25B, which uses a stator 250 and a rotor 260. However, in the embodiment of the explosion-proof type CDR 202, the stator groove 253, the axial and radial protrusions 254, 255 of the stator 250, the rotor groove 263, the rotor axial and radial protrusions 264, 265, the cover body The recess 273, and the cover axially interacts with the radial projections 274, 275 to form a flame path that is different from the embodiment of the explosion proof CDR 202 as shown in Figures 25B and 28B. Thus, the rotor 260 in this embodiment can be provided with a rotor radial projection 265 that extends to the stator recess 253, wherein the axial surface of the rotor radial projection 265 is adjacent to the radial projection of the stator 250. 255, and its opposite axial surface is adjacent to the cover axial projection 274. Other embodiments of bearing isolators

Figures 30-34 show other embodiments of the bearing isolator 10. In general, the bearing isolator 10 can be configured such that the current shunt device 11 can be disposed in the bearing isolator 10, in particular, one portion of the stator 20 of the bearing isolator 10 can be relative to the device housing The body 16 is provided on the outer side. Any of the features, methods, embodiments, components, and/or configurations of any of the various current shunting rings, current shunting devices, conductive components, and/or bearing isolators disclosed herein may be implemented in FIG. The embodiment of the bearing isolator 10 and/or the current shunting device 11 shown in FIG. 34 is not particularly limited unless the scope of the patent application is defined, or unless the characteristics and/or configuration of such components are not Compatible with features and/or configurations of another component.

It can be understood that the current shunting device 11 and/or part thereof can be integrally provided in one part of the stator 20, or the current shunting device 11 and/or part thereof can be disposed separately from the stator 20, and the latter is connected There are no restrictions unless the scope of the patent application is otherwise defined. In one embodiment of the bearing isolator 10, the current shunting device 11 can be a current shunt ring, and in particular, the current shunt device 11 can be a radial type CDR 80, as shown in Figures 15A and 15B. However, other versions of the current shunt device 11 can also be used on the bearing isolator, including but not limited to any configuration suitable for the disclosed current shunt ring, and are not particularly limited unless otherwise defined in the scope of the patent application. In one embodiment, the current shunting device 11 can have a structure similar to that of the CDR 200' shown in Figures 21A-21C. In another embodiment, the current shunting device 11 can have a structure similar to the CDR 80 shown in Figures 15A and 15B, and the like. Therefore, as shown in Figs. 30-34, the terms "bearing isolator 10" and "current shunting device 11" are interchangeable.

30, 30A, 30B, 33, 33A and 34 show axial cross-sectional views of other embodiments of the bearing isolator 10. As shown, the stator 20 can be coupled to the device housing 16 such that the stator 20 does not substantially move relative thereto. A portion of the stator 20 can extend into the device housing 16 and a portion of the length of the stator that extends into the device housing 16 can be limited by the shoulders provided on the radially outer surface of the stator 20. The stator 20 can be coupled to the device housing 16 by one or more O-rings 18, wherein each O-ring 18 can correspond to a stator O-ring groove 22a that can be formed in the stator body 22 It is adjacent to the surface of one of the device housings 16 during operation. However, the stator 20 can be disclosed in any suitable manner (some of which are disclosed in the foregoing current shunt rings 40, 80, 100, 160, 200', 200, bearing isolators 10, and/or explosion-proof currents). Various embodiments of the shunt device 10' and the like, and including but not limited to the mechanism lock attachments 72, 205, 15', chemical adhesive, welding, interference fit, and/or combinations thereof, for attachment to the device housing 16 . Thus, the scope of the present invention is not limited to any method and/or structure for engaging the stator 20 to the device housing 16, unless the scope of the patent application is otherwise defined.

The rotor 30 can be coupled to the shaft 14 such that the rotor 30 can rotate therewith. In one embodiment, the rotor 30 can be coupled to the shaft 14 by one or more O-rings 18. Both O-rings 18 can be used to couple the stator 20 to the device housing 16, and the O-ring 18 for engaging the rotor 30 to the shaft 14 can be configured to have a lower electrical impedance than the foregoing The impedance of other embodiments of the CDR. Thus, in one embodiment, one or more O-rings 18 may be fused with silver and/or nickel for engaging the rotor 30 to the shaft 14 and/or engaging the stator 20 to the device housing 16 . Therefore, the other O-rings 18 and/or seals 17 can be made of a substantially smaller impedance material, and the scope of the present invention is not limited thereto unless otherwise defined in the scope of the patent application.

The stator 20 may be provided with a stator body 22 having one or more stator axial and/or radial projections 26, 28 extending from the stator body 22 and/or which may be provided with one or more stator axial directions and / or radial grooves 29, 29a. The stator axial and/or radial grooves 29, 29a may be provided in the stator body 22, the stator axial projections 26 and/or the stator radial projections 28. Each of the stator recesses 29, 29a can extend around an integral portion of the stator recesses 29, 29a such that the stator recesses 29, 29a can be annular recesses. At the same time, the stator axial and/or radial projections 26, 28 may be from the stator body 22, the stator axial projections 26, the stator radial projections 28, the stator axial grooves 29, and/or the stator radial grooves. 29a extends out. This is shown in a plurality of figures, and the stator protrusions 26, 28 can interact to form the stator grooves 29, 29a and vice versa.

The stator 20 may be provided with an internal sump 21 therein as a lubricant passage in the interior of the stator 20 for returning it to the apparatus housing 16. The inner trough 21 can be in communication with a stator radial groove 29a that is generally internal (relative to the apparatus housing 16). In general, it will be appreciated that the lubricant collected in the inner stator radial groove 29a can be discharged through gravity through the inner groove 21. Therefore, the inner stator radial groove 29a and/or the inner groove 21 may circulate with other portions of the bearing isolator 10 without particular limitation unless otherwise defined in the scope of the patent application.

As shown in Figures 30A and 30B, the stator 20 can also be provided with a stator radial groove 29a for receiving the pulley 18a. It will be appreciated that the pulley 18a, the stator 20 and the axle body 14 can be configured such that the bottom tangent of the pulley 18a is substantially collinear with the top of the axle body 14. The compatible sheave 18a may allow some degree of movement and/or other misalignment of the radial axle 14 as the stator 20 and the axle 14 are maintained adjacent to each other within a minimum spacing of the interior of the bearing isolator 10. This minimum spacing assists in the conversion of the lubricant film back to the liquid state, and it also prevents excessive oil (or other lubricant) from entering any interface between the stator 20 and the rotor 30. The pulley 18a can be made of a natural lubricious, relatively soft and relatively compatible material including, but not limited to, PTFE.

The stator 20 can be provided with an outer groove 27 on the outside (relative to the device housing 16). The outer trough 27 can provide access to contaminants within one portion of the rotor 30 and/or substantially the outer portion of the stator 20 to facilitate its flow out of the bearing isolator 10. The outer groove 27 can be circulated with a stator radial groove 29a and/or a substantially outer rotor radial groove 39a substantially externally (relative to the device housing 16). In one embodiment, the stator radial grooves 29a can be substantially axially aligned with the rotor radial grooves 39a such that the two grooves 29a, 39a can interact to form a contaminant groove. In general, it can be understood that contaminants and/or other substances collected in the outer stator radial groove 29a and/or the outer rotor radial groove 39a can pass through the outer groove 27 to pass gravity. Discharged. However, the outer stator radial groove 29a, the outer rotor radial groove 39a and/or the outer groove 27 may circulate with other portions of the bearing isolator 10 without particular limitation, unless otherwise defined in the scope of the patent application. .

The rotor 30 may be provided with a rotor body 32 having one or more rotor axial and/or radial projections 36, 38 extending from the rotor body 32 and/or which may be provided with one or more rotor axial and/or Or radial grooves 39, 39a. The rotor axial and/or radial grooves 39, 39a may be provided in the rotor body 32, the rotor axial projections 36 and/or the rotor radial projections 38. Each rotor recess 39, 39a can extend around an integral portion of the rotor recess 39, 39a, so the rotor recess 39, 39a can be an annular recess. At the same time, the rotor axial and/or radial projections 36, 38 may be from the rotor body 32, the rotor axial projections 36, the rotor radial projections 38, the rotor axial grooves 39 and/or the rotor radial grooves 39a. Extend out. This is shown in a plurality of figures, and the rotor projections 36, 38 can interact to form the rotor grooves 39, 39a, and vice versa.

Other features of the stator 20 may interact with multiple features of the rotor 30, and vice versa, to form a labyrinth seal and/or passage therebetween that prevents lubricant from escaping from the bearing isolator 10 and contaminants Infiltrated into the bearing isolator 10. The sealing member 17 can be positioned on an inner surface between the stator 20 and the rotor 30 to assist in preventing intrusion of contaminants from the external environment into the interior of the bearing isolator 10, and to assist in maintaining the lubricant in the bearing isolator 10. internal. A portion of the seal 17 can be positioned in the stator radial groove 29a and another portion thereof, and can also be positioned in the rotor radial groove 39a. In general, any suitable configuration of the stator 20 and/or the rotor 30 is possible without particular limitation, unless otherwise defined by the scope of the patent application.

In one embodiment, the current shunt device 11 can be provided with one or more conductive components 86 at different locations. The conductive components 86 can be wound around the periphery of the current shunt device 11 at equal intervals, or they can have different settings. It will be appreciated that the optimum number and location of the plurality of electrically conductive components 86 may depend on the different applications of the bearing isolator 10 and/or the current shunt device 11. Although the bearing isolator 10 is circumferentially disposed around the bearing isolator 10 with six conductive members 86, the specific number and/or position of the conductive members 86 should not be construed as limiting the scope of the present invention. Unless otherwise defined in the scope of the patent application of this case.

The stator 20 may be provided with one or more radial holes 23a therein, and the radial holes 23a may also be disposed in the stator body 22. The radial bores 23a can be arranged in a manner similar to the aforementioned radial channels 52, 82, 122, 162, 232 and/or radial bores 252 (which may or may not be provided with radial channel shelves 83, 163) There may be other structures without particular limitation unless otherwise defined in the scope of the patent application. The radial bore 23a can house the conductive component 86, the conductive insert 259 and/or the plugs 87, 257 (if needed), and in a manner similar to the other used for the CDR, current shunt device 11 and/or bearing isolator 10 described above. The embodiments are in the same manner without particular limitation, unless otherwise defined in the scope of the patent application. Each radial bore 23a can include a radial channel frame as described in various different embodiments of the CDRs described above and/or bearing isolators. Alternatively, the bearing isolator 10 can have other structures and/or methods to properly position a portion of the electrically conductive component 86 and/or the electrically conductive insert 259 relative to the shaft 14 and/or another portion of the CDR and/or the bearing isolator ( It is positioned such as a portion of the sleeve, a portion of the rotor, etc., but as a tapered radial bore 23a.

As shown in Figures 30A and 30B, each radial bore 23a can extend from the outer surface of the stator 20 into the stator axial groove 29, wherein the rotor axial projection 36 can be positioned in one of the axial bores 29 of the stator. Inside. Thus, the stator axial groove 29 and the rotor axial projection 36 can interact to form a contact channel 15 for a portion of the conductive component 86 to extend therein. The contact portion 86b of the conductive component 86 can be in direct contact with one of the radially outer surfaces of the rotor axial projection 36, and another portion of the conductive component 86 can be in direct contact with a portion of the stator 20 such that current can flow from the rotor 30 through the conductive Assembly 86 is to stator 20. In other words, the first portion of the conductive component 86 and/or the insert 259 can be in direct contact with the rotor 30, and the second portion and/or the insert 259 can be in direct contact with the stator 20 and can be used to flow current from the shaft 14. Through the bearing isolator 10, it is conducted directly to the device housing 16 (which can form an electrical circuit).

The rotor axial projection 36 can be formed with a smooth, relatively uniform radially outer surface to provide an optimum surface for the pre-conductive insert 86 or other conductive member to contact. The relatively uniform radially outer surface of the rotor axial projection 36 may be provided with a rotor radial groove 39a on the rotor axial projection 36, wherein the rotor radial groove 39a may have a width that is substantially the same or larger than the conductive component The width of the contact portion 86b of 86. One or more rotor radial projections 38 may extend from either side of a relatively uniform radially outer surface of the rotor axial projection 36. Such rotor radial projections 38 can be used to prevent ingress of contaminants into the portion of the conductive assembly 86 that is in contact with the rotor 30 (e.g., the relative axial extent of the rotor axial projections 36 between the two rotor radial projections 38). The radially outer surface, which also extends from the rotor axial projection 36, prevents carbon fibers or other materials from intruding into the bearing isolator 10. The stator 20 and/or the rotor 30 may be provided with other recesses 29, 29a, 39, 39a and/or protrusions 26, 28, 36, 38 adjacent to the contact portion between the conductive component 86 and the rotor 30. Or other locations without special restrictions, unless otherwise defined in the scope of the patent application.

In general, the bearing isolator 10 can be configured such that the contact portion 86b of the electrically conductive component 86 can directly engage a portion of the rotor 30, as will be understood in the other embodiments previously described above. A surface is provided on 30 such that the contact portion 86b of the conductive component can form a particular contact with advantages over prior art. First, it allows the manufacturer and/or user to accurately control the electrical contact between the conductive component 86 and the rotor 30, so that the conductive component 86 is in direct contact with the body 14 and is in direct contact with the structure. In other words, having a longer service life of the conductive component 86 and/or the bearing isolator 10 can also avoid various problems of poor precision of the machining of the shaft body 14. Generally, the outer surface of the shaft body 14 is irregular, non-uniform, or it may be made of a material that is susceptible to corrosion, holes, and/or deterioration. It will be appreciated that direct contact between the conductive component 86 and the rotor 30 is particularly beneficial for certain applications, such as when the conductive component 86 is to be in contact with a smooth and relatively uniform surface. Secondly, the structure prevents the oxide layer from being formed on the shaft body 14, and/or prevents lubricant (such as oil) from being deposited on the shaft body 14, and these phenomena are caused by the shaft body 14 and the conductive member 86. The conductivity between the two is lowered.

In another embodiment, the current shunt device 11 (or the bearing isolator 10) can be configured to be disposed external to the stator 20 to facilitate servicing and/or maintenance of certain portions of the current shunt device 11. The conductive component 86 within the bearing isolator 10 can be configured to be replaceable. In other words, when the contact portion 86b of the conductive member 86 has been worn, or the conductive member 86 has to be replaced for other reasons, the user can detach the conductive member 86 from the radial hole 23a and insert the new conductive member 86. The disassembly and mounting of one or more of the electrically conductive components 86 and/or the plugs 87 can be accomplished easily using the structure shown in Figures 30-34 without the need to mount the stator 20, the rotor 30, and/or the other of the bearing isolator 10. Partially removed from the device housing 16 and/or the shaft body 14.

As shown in Figures 30, 30A and 31, in one embodiment, one or more conductive components 86 can be disposed adjacent to the transfer plug 218', which can be associated with the CDR 200' (as described above and Figures 21A, 21B). The other components of the different embodiments shown in FIG. 21C act together to monitor the correct contact between one or more of the conductive components 86 and the shaft 14 and/or the components (as described in one of the bearing isolators 10) For example, one of its rotors 30).

If the bearing isolator 10 is provided with a current shunting device 11 and has a similar function to the CDR 200' as shown in Figures 21A, 21B, 21C, it will be appreciated that the insulating member 202' can be disposed between the indicator conducting component 214. 'And between the stator 20. Moreover, the radial bore 23a, which can be engaged with the insulator 202', can have a radial bore 23a that is different from the other conductive component 86 (which can include the second conductive component 216'). For example, in one embodiment, the diameter of the radial hole 23a corresponding to the insulating member 202' may be larger than the diameter of the radial hole 23a corresponding to the other conductive member 86. The insulating member 202' can be provided with a non-conductive sleeve that can be engaged with a radial hole 23a provided in the stator 20, wherein the indicator conductive component 214' can be coupled to a central hole provided in the insulating member 202'. . In general, it will be appreciated that the transfer plug 218' can be positioned adjacent to the radial bore 23a in the stator 20 corresponding to the indicator conductive assembly 214' such that the transfer plug 218' can be formed with the indicator conductive assembly 214'. Wired contacts without the need for long wires. However, the indicator conductive component 214' and the transmission plug 218' can also be configured to have a wireless transmission hardware, and thus it is not particularly limited unless otherwise defined in the scope of the patent application. Explosion-proof type current shunting device

As an embodiment of the explosion-proof current shunt device 10' shown in Figures 35-37, it will be understood that the integral or a portion of the explosion-proof current shunt device 10' may be a bearing isolator 10. In one embodiment, the explosion-proof current shunt device 10' can be configured such that the current shunt device 11 can be integrated into the bearing isolator 10, which portion can be similar to the bearing isolator shown in Figures 30-34 above. The mode of 10 is located on the outer side with respect to the device housing 16'. Alternatively, the current shunt device 11 can be integrated into and include a portion of the body of the bearing isolator 10, and a portion of the bearing isolator 10 can be located relative to the inside of the device housing 16. Any of the features, methods, embodiments, components, and/or configurations disclosed herein for any of the various current shunting rings, current shunting devices, conductive components, and/or bearing isolators 10 can be applied to, for example, 35-37, the explosion-proof current shunt device 10' is not particularly limited unless otherwise defined in the scope of the patent application, or unless the features and/or configuration of such components are not related to another component. And / or configuration compatible.

It will be appreciated that the explosion-proof current shunt device 10' and/or portions thereof may be integrally formed with a portion of the bearing isolator 10 (e.g., stator 20, rotor 30, etc.), or current shunt 11 and/or portions thereof. It can be provided separately from the bearing isolator 10, and there is no restriction on the way the latter is connected unless the scope of the patent application defines otherwise. In one embodiment of the explosion-proof current shunt device 10', the current shunt device 11 can be a current shunt ring, and in particular, the current shunt device 11 can be a radial type CDR 80, as shown in Figures 15A and 15B. However, other types of current shunting device 11 may also be used on the bearing isolator, including but not limited to any configuration suitable for the disclosed current shunt ring, and are not particularly limited, unless otherwise defined in the scope of the patent application, including However, it is not limited to any suitable structure of the current shunt ring and/or current shunt device 11. In one embodiment, the current shunt device 11 can have a structure similar to the CDR 200' shown in FIGS. 21A-21C, which can have at least one indicator conductive component 214' and a bearing as shown in FIGS. 30-34 above. Isolator 10.

36 and 36A are axial cross-sectional views showing different embodiments of the explosion-proof current shunt device 10', wherein the current shunt device 11 can be integrated into the bearing isolator 10 (or shaft seal). As shown, the stator 20' and/or portions thereof can engage the device housing 16' such that the stator 20' is substantially non-movable relative thereto. Any suitable monitoring structure and/or method that can be used on the bearing isolator 10 and the CDRs 40, 80, 80a, 100, 160, 200 and/or the capture CDR 200, as described above, can be used to interface the stator 20' to the device Housing 16', such methods include, but are not limited to, interference fit, mechanism lock attachments, one or more O-rings 18' made of a material having a lower electrical impedance, and/or combinations thereof. Accordingly, the particular structure and/or method that can be used to properly engage the stator 20' to the device housing 16' is not intended to limit the scope of the invention unless otherwise defined by the scope of the application.

The rotor 30' and/or portions thereof can engage the shaft 14' such that the rotor 30' can rotate therewith. In one embodiment, the rotor 30' can be engaged with the shaft 14' by one or more O-rings 18'. In one embodiment of the explosion-proof current shunt device 10', a plurality of O-rings 18' can be used to engage the rotor 30' to the shaft 14'. However, any other method and/or structure suitable for the particular application of the explosion-proof current shunt device 10' can be used to engage the rotor 30' to the shaft 14' without particular limitation, including but not limited to Interference fit, welding, screw sets and/or combinations thereof, unless otherwise defined in the scope of the patent application.

The O-ring 18' can be configured such that its electrical impedance is relatively less than the electrical impedance of other embodiments of the CDR and/or bearing isolator 10 as previously described. Thus, in one embodiment, one or more O-rings 18' are fused with silver and/or nickel for engagement of the rotor 30' to the shaft 14'. At the same time, any other O-ring 18' and/or seal 17' can be made of a substantially smaller impedance material to meet the needs of a particular application.

The stator 20' may be provided with a stator body 22' having one or more axial and/or radial projections 26', 28' extending from the stator body 22' and/or it may also be provided Or a plurality of axial and/or radial grooves 29', 29a'. The stator axial and/or radial grooves 29', 29a' may be provided in the stator body 22', the stator axial projection 26' and/or the stator radial projection 28'. Each of the stator recesses 29', 29a' can extend around an integral portion of the stator recesses 29', 29a' so that the stator recesses 29', 29a' can be annular recesses. At the same time, the stator axial and/or radial projections 26', 28' may be from the stator body 22', the stator axial projection 26', the stator radial projection 28', the stator axial recess 29' and / Or the stator radial groove 29a' extends. This is shown in a plurality of figures, and the stator projections 26', 28' can interact to form the stator grooves 29', 29a' and vice versa.

As shown in Figures 36 and 36A, the stator 20' can be provided with an internal groove 21' therein, which can serve as a lubricant passage inside the stator 20' for returning it to the device housing. 16'. The inner trough 21' can be in communication with a stator radial groove 29a' that is generally internal (relative to the apparatus housing 16'). In general, it will be appreciated that the lubricant collected in the inner stator radial groove 29a' can be discharged through gravity through the inner groove 21'. However, the inner stator radial groove 29a' and/or the inner groove 21' may be in communication with other portions of the explosion-proof current shunt device 10' without particular limitation, unless otherwise defined in the scope of the patent application.

The stator 20' can be provided with an outer groove 27' on the outside (relative to the device housing 16'). The outer groove 27' can provide a passage for contaminants located within a portion of the rotor 30' and/or substantially the outer portion of the stator 20' to facilitate its flow out of the explosion-proof current shunt device 10'. The outer groove 27' can be circulated with a stator radial groove 29a' and/or a substantially outer rotor radial groove 39a' substantially externally (with respect to the device housing 16'). In one embodiment, the stator radial grooves 29a' are substantially axially aligned with the rotor radial grooves 39a' such that the two grooves 29a', 39a' can interact to form a contaminant Groove. In general, it will be appreciated that contaminants and/or other materials collected in the outer stator radial groove 29a' and/or the outer rotor radial groove 39a' may be transmitted through the outer groove 27' through gravity. Role to discharge. However, the outer stator radial groove 29a', the outer rotor radial groove 39a' and/or the outer groove 27' may circulate with other parts of the bearing isolator 10 without particular limitation, unless the scope of the patent application is Also defined.

As shown in Figures 35C, 36 and 36A, the stator body 22' can be provided with one or more radial channels 22a' therein. The radial channels 22a' disposed within the stator body 22' can be disposed in a manner similar to the radial channels 52, 82, 122, 162, 232 and/or radial bores 252 described above (which may or may not be provided with diameters) The channel racks 83, 163) may have other structures without particular limitation unless otherwise defined in the scope of the patent application. The radial channel 22a' can be configured to accommodate the conductive component 86, the conductive insert 259, and/or the plugs 87, 257 (if desired) in a manner that can be used with the aforementioned CDRs, current shunting device 11 and/or Other embodiments of the bearing isolator 10 are in the same manner without particular limitation, unless otherwise defined in the scope of the patent application. Each radial channel 22a' can include a radial channel frame 83, 163 as described in various different embodiments of the CDRs described above and/or bearing isolators. Alternatively, the explosion-proof current shunt device 10' may have other structures and/or methods to properly position a portion of the conductive component 86 and/or the conductive insert 259 relative to the shaft 14 and/or another portion of the CDR and/or bearing The isolator (such as a portion of the sleeve, a portion of the rotor 30, etc.) is positioned as a tapered radial channel 22a'. The radial channel 22a' can intersect the stator radial groove 29a' and extend into the stator body 22' in a direction away from the shaft 14'. With this configuration, the portion of the conductive member 86 adjacent to the contact portion 86b and the portion of the rotor 30 that engages with the contact portion 86b can serve as the contact channel 15 of the bearing spacer 10 as shown in the aforementioned FIGS. 30-34. However, the joint portion may have other configuration structures without particular limitation unless otherwise defined in the scope of the patent application.

As shown in the axial cross-sectional view of the explosion-proof current shunt device 10' shown in Figures 36 and 36A, the stator cover 20a' can be coupled to a portion of the stator 20' so as to be adjacent to the path provided in the stator 20'. The whole or a portion of the stator 20' of the channel 22a' is covered. In one embodiment, the stator cover 20a' may be provided with an axial surface and a radial surface that are coupled to the outer surface of the corresponding stator 20' so that the stator cover 20a' has an L-shaped cross section. However, the stator cover 20a' can be provided in any manner to the axial or radial projections 26', 28' and/or axial or radial grooves 29', 29a' which can be coupled to the stator 20' or the rotor 30. The characteristics of 'interacting' are not particularly limited unless otherwise defined in the scope of the patent application.

The stator cover 20a' can be fixedly coupled to the stator 20' by a lock attachment 15', wherein the cover lock attachment channel is formed on the stator cover 20a' and corresponding to one or more of the stator 20' Lock attachment channels. However, any method and/or structure suitable for the particular application of the explosion-proof current shunt device 10' can be used to secure the stator cover 20a' to the stator 20' without particular limitation (including but not limited to The various structures and/or methods described above on various CDR and/or shaft isolators 10, unless otherwise defined in the scope of the patent application.

The rotor 30' may be provided with a rotor body 32' having one or more rotor axial and/or radial projections 36', 38' extending from the rotor body 32' and/or which may be provided with one or more Rotor axial and/or radial grooves 39', 39a'. The rotor axial and/or radial grooves 39', 39a' may be provided in the rotor body 32', the rotor axial projections 36' and/or the rotor radial projections 38'. Each rotor recess 39', 39a' can extend around an integral portion of the rotor recess 39', 39a' so that the rotor recess 39', 39a' can be an annular recess. At the same time, the rotor axial and/or radial projections 36', 38' may be from the rotor body 32', the rotor axial projection 36', the rotor radial projection 38', the rotor axial groove 39' and/or The rotor radial groove 39a' extends. This is shown in a plurality of figures, and the rotor projections 36', 38' can interact to form the rotor grooves 39', 39a' and vice versa.

Other features of the stator 20' may interact with multiple features of the rotor 30', and vice versa, to form a labyrinth seal and/or passage therebetween that prevents lubricant from oozing out of the explosion-proof current shunt device 10' And the contaminant penetrates into the explosion-proof current shunt device 10'. Although not shown in FIGS. 35-37, a sealing member 17' can be positioned on an inner surface between the stator 20' and the rotor 30' to assist in preventing intrusion of contaminants from the external environment to the explosion-proof current shunt device 10'. Internally, it can also assist in maintaining the lubricant inside the explosion-proof current shunt device 10'. A portion of the seal 17' can be positioned in the stator radial groove 29a' and another portion thereof, and can also be positioned in the rotor radial groove 39a'. In general, any suitable configuration of the stator 20' and/or the rotor 30' is possible without particular limitation, unless otherwise defined by the scope of the patent application.

The rotor 30' may be provided with a rotor cover 30a'. The rotor cover 30a' can engage a portion of the rotor 30' to provide a rotor axially outer surface 33' to a portion of the rotor cover 30a' and a rotor radial outer surface 33a'. In an embodiment, the rotor cover 30a' may be provided with a rotor axial projection 36' on its outer circumferential surface, wherein the rotor axial projection 36' may extend inwardly toward the device housing 16' and beyond the stator 20' A portion is formed to form a first axial interface spacing 34a' between the rotor cover 30a' and the stator 20'. The rotor cover 30a' may be provided with a rotor axial groove 39' on its inner circumferential surface (adjacent to the shaft body 14'), wherein the rotor axial groove 39' may correspond to the rotor axial direction provided in the rotor 30' Projection 36'. The plurality of features of the stator 20', the stator cover 20a', the rotor 30', and the rotor cover 30a' can interact to form a desired flame path as detailed below. Therefore, the optimum configuration of the features of such components is determined by the different applications of the explosion-proof current shunt device 10', and is not particularly limited unless otherwise defined in the scope of the patent application.

The rotor cover 30a' can be fixedly coupled to the rotor 30' by a lock attachment 15', wherein the cover lock attachment channel is formed on the rotor cover 30a' and can be correspondingly disposed in the rotor 30'. Lock attachment channels. However, any method and/or structure suitable for the particular application of the explosion-proof current shunt device 10' can be used to secure the rotor cover 30a' to the rotor 30' without particular limitation (including but not limited to The various structures and/or methods described above on various CDR and/or bearing isolators 10, unless otherwise defined in the scope of the patent application.

In one embodiment, the explosion-proof current shunt device 10' can be provided with one or more conductive components 86 at different locations. The conductive components 86 can be wound around the periphery of the explosion-proof current shunt device 10' at equal intervals, such as at least the twelve conductive components 86 shown in Figure 35C, or they can have different settings. It will be appreciated that the optimum number and location of the plurality of electrically conductive components 86 may depend on the different applications of the explosion proof current shunt device 10'. Therefore, the specific number and/or location of the conductive component 86 is not intended to limit the scope of the present invention unless otherwise defined in the scope of the patent application.

In general, the explosion-proof current shunt device 10' can be configured such that the contact portion 86b of the conductive component 86 can directly engage a portion of the rotor 30', as will be appreciated by other embodiments previously described. Yes, a surface is provided on the rotor 30' such that the contact portion 86b of the conductive component 86 can form a particular contact with the prior art advantages of the bearing isolator 10 as shown in Figures 30-34. . The surface of the rotor 30' can be in direct contact with the conductive component 86 in the explosion-proof current shunt device 10', which can be achieved by means of the explosion-proof current shunt device 10' as shown in Figures 30-34, and the conductive component A portion of the contact portion 86b of the 86 can be positioned radially away from the stator radial groove 29a' of the shaft body 14' that extends into the stator body 22' without particular limitation, unless otherwise claimed in the patent application. Defined. Also, as previously described, it will be appreciated that the first portion of the conductive component 86 and/or the insert 259 can be in direct contact with the rotor 30', while the second portion of the conductive component 86 and/or the insert 259 can be directly with the stator 20' The contacts can be simultaneously applied directly from the shaft 14' via the explosion-proof current shunt 10' to the device housing 16' (which can form a circuit).

In one embodiment, one or more conductive components 86 may be disposed adjacent to the transmission plug 218', which may function in conjunction with other components of the CDR 200' (as described above and in the different embodiments illustrated in Figures 21A, 21B, 21C), To monitor the proper contact of one or more of the conductive components 86 with the shaft 14' and/or the components (such as one of the bearing isolators 10' described, one portion of the rotor 30'). If the explosion-proof current shunt device 10' has a function similar to the CDR 200' shown in Figures 21A, 21B and 21C, it can be understood that an insulating member 202' can be used (Fig. 30-34 as described above). The illustrated bearing isolator 10) is therein.

In another embodiment, the explosion-proof current shunt device 10' can be configured to be placed on the stator cover 20a' as shown in Figures 35-37 to facilitate repair and/or maintenance of an explosion-proof current shunt. Some parts of the device 10'. The conductive component 86 within the explosion-proof current shunt device 10' can be configured to be replaceable. In other words, when the contact portion 86b of the conductive component 86 has been worn, or the conductive component 86 has to be replaced for other reasons, the user can remove the conductive component 86 from the radial channel 22a' and insert the new conductive component 86 into it. . The disassembly and mounting of one or more of the conductive components 86 and/or the plugs 87 can be accomplished easily using the structure shown in Figures 35-37 without the need to shunt the stator 20', the rotor 30', and/or the explosion-proof current. Other portions of device 10' are relatively removed from device housing 16' and/or shaft 14'.

The interface between the axially inner surface of the stator 20' and/or the interface between the radially outer surface and the housing 16' (and/or other components of the stator 20' in the explosion-proof current shunt device 10', such as The interface between the stator 20' and the stator cover 20a', or between the other portion of the explosion-proof current shunt device 10' and the device housing 16', may be separately provided to the stator 20 by one or more The seal (e.g., O-ring 18') is disposed between the housing 16' or the deformable material to be sealed and/or isolated to ensure proper definition of the flame path. At the same time, the interface between the rotor 30' and the shaft 14' (and/or the interface between the components of the rotor 30' in the explosion-proof current shunt device 10', such as between the rotor 30' and the rotor cover 30a' The interface between the other portion of the explosion-proof current shunt device 10' and the shaft 14' may be separately provided to the rotor 30' and the shaft 14' or may be deformable by one or more Seals (such as O-rings 18') are provided together with seals and/or isolated to ensure proper definition of the flame path. The deformable materials include, but are not limited to, epoxies, chemical adhesives, ceramics, metals, polymers, and/or combinations thereof, and the like. The geometry and the various interface surfaces extend from the inner region of the explosion-proof current shunt device 10' (eg, one of the stator radial grooves 29a' or adjacent thereto) to the outer region of the explosion-proof current shunt device 10' (usually The so-called "flame path" can be specifically designed (such as width, length, turning, etc., the number and structure of the interface between the stator 20' and the rotor 30') to pass the requirements of the aforementioned standard specifications, or other Standard specifications, etc., without special restrictions.

Between stator 20' and stator cover 20a', stator 20' and rotor 30', stator 20' and rotor cover 30a', rotor 30' and rotor cover 30a', rotor cover 30a' and stator cover 20a', stator 20' The interface with the conductive component 86, and/or the stator 20' and the plug 87, can be designed to utilize such components, including but not limited to the inner trench 21', the radial channel 22a', the receiving recess 24 ', stator axial projection 26', outer groove 27', stator radial projection 28', stator radial groove 29a', stator axial groove 29', first axial interface spacing 34a', A radial interface interval 34b', a rotor axial projection 36', a rotor radial projection 38', a rotor radial groove 39a', a rotor axial groove 39', etc., and a feature of the stator cover 20a' And/or features of the rotor cover 30a'.

As shown in Figures 36 and 36A, in one embodiment of the explosion-proof current shunt device 10', the flame path between the stator 20' and the rotor 30' is from the device housing 16' (i.e., Figures 36 and 36A). The left side extends to the outer region of the housing 16' and the explosion-proof current shunt device 10' can comprise a variety of orientations. From left to right, the interface between the stator 20' and the rotor 30' (the interface can form a flame path between the stators 20' and 30') is from the initial axial direction at the radial projection of the rotor After 38', it changes to the radial direction and then back to the axial direction. In the axial direction of the extreme end of the stator 20', the interface is again converted into a radial direction through the rotor cover 30a', and finally axially protruded through the stator radial projection 28' and the rotor provided in the rotor cover 30a'. The portion 36' is in the axial direction. It will be appreciated that the interface between the rotor 30' and the rotor cover 30a' can be suitably sealed to prevent the flame path from extending along the interface. Therefore, the interface between the stator 20' and the rotor 30' (and the rotor cover 30a') may include four right angles. However, the interface between them may have different structural configurations, different angle transitions, different number of transitions, etc., without particular limitation, unless otherwise defined in the scope of the patent application.

In general, if the flame and/or spark is generated in the explosion-proof current shunt device 10', it is preferred that the flame be directed away from the device housing 16' and/or the shaft 14'. In general, the flame path is designed to have sufficient distance and volume in the outer region of the explosion-proof current shunt device 10', so when the flame leaves the explosion-proof current shunt device 10', the flame energy is sufficient to be cooled, thereby avoiding the explosion-proof shunt The combustion of the material outside the device 10' (such as gas, steam, etc.). Often, such a design requires a relatively small amount of error along this flame path.

The material used to manufacture the bearing isolator 10 and/or the explosion-proof current shunt device 10', and its various components and/or components may be determined according to its specific application, but it is understood that the polymer, metal, metal Alloys, natural materials, fiber materials, and/or combinations thereof are particularly advantageous for certain applications of the bearing isolator 10 and/or the explosion-proof current shunt device 10'. Therefore, the above-mentioned components may be any materials well known to those skilled in the art, or materials developed later, which are suitable for the specific application of the present invention and are not inconsistent with the present invention. The spirit and scope of the patent, unless otherwise defined in the scope of the patent application. At the same time, the seals 17, 17' and the O-rings 18, 18' can be made of any material suitable for the particular application of the bearing isolator 10 and/or the explosion-proof current shunt device 10', including but not limited to A polymer having a metallic property, a synthetic material, an elastomer, a natural material, and/or a combination thereof, and the like, without particular limitation, unless otherwise defined in the scope of the patent application. The disclosure of the present invention is related to one or more functions, and it is understood that the content is not intended to limit the scope of the present invention, and the scope thereof is defined by the scope of the patent application of the present application. The scope of the present invention is intended to embrace all alternatives, modifications, and equivalents thereof.

Other features of the present invention may be understood by those of ordinary skill in the art based on the various embodiments of the various methods and apparatus described above, and thus various embodiments of various changes and modifications may be made without departing from the invention. The spirit and scope. Therefore, the methods, embodiments, and the like disclosed herein are intended to be illustrative only, and the scope of the invention is intended to cover all of the various methods and/or structures, without limitation, unless otherwise defined. Also, the methods, embodiments, and the like disclosed herein are not intended to limit the scope of the bearing isolator 10 and/or the explosion-proof current shunt device 10' unless otherwise defined in the scope of the patent application.

While the drawings are provided with different elements, such dimensions are intended to be illustrative only and not to limit the scope of the invention. It can be understood that the bearing isolator 10, the explosion-proof current shunt 10', the CDR 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200' and/or the explosion-proof CDR are not limited to a specific one. Embodiments, but can be applied to similar devices and methods for dissipating charge from the shafts 14, 14', 207 to the device housing 16, 16', and/or providing an explosion-proof bearing isolator 10, explosion-proof current shunt Device 10', CDR 40, 80, 80a, 100, 160, 200, capture CDR 200, CDR 200', and/or explosion proof CDR 202, motor, gearbox, other device, and/or system, and/or the like And methods for use with an explosion-proof bearing isolator 10, an explosion-proof current shunt device 10', CDRs 40, 80, 80a, 100, 160, 200, a capture CDR 200, a CDR 200', and/or an explosion-proof CDR 202. Those skilled in the art can make changes and changes according to the embodiments, but still not insulted by the explosion-proof type bearing isolator 10, the explosion-proof current shunt device 10', the CDRs 40, 80, 80a, 100, 160, 200, the spirit and scope of the captured CDR200, CDR200', and/or explosion-proof CDR202.

Any of the various types of bearing isolator 10, explosion-proof current shunt device 10', CDR 40, 80, 80a, 100, 160, 200, capture CDR 200, CDR 200', and/or explosion-proof CDR 202 used in the present invention Features, elements, functions, advantages, embodiments, configurations, etc., may be used alone or in combination with each other depending on their compatibility with the features. Therefore, the bearing isolator 10, the explosion-proof current shunt device 10', the current shunt device 11, the CDRs 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 may have Numerous possible variations of the embodiment. Changing, and/or replacing, any of the features, components, functions, advantages, embodiments, configurations, etc., does not thereby limit the bearing isolator 10, the explosion-proof current shunt device 10', the current shunt device 11, the CDR 40, The scope of 80, 80a, 100, 160, 200, capture CDR 200, CDR 200', and/or explosion proof CDR 202, unless otherwise defined in the scope of the patent application.

It can be understood that the bearing isolator 10, the explosion-proof current shunt device 10', the CDR 40, 80, 80a, 100, 160, 200, the capture type CDR200, the CDR 200', and/or the explosion-proof type CDR 202, which are disclosed in the present invention, Alternative combinations of all one or more of the features may be extended, as will be apparent from the drawings disclosed herein. All such different combinations may constitute a plurality of bearing isolators 10, explosion-proof current shunt devices 10', CDRs 40, 80, 80a, 100, 160, 200, capture CDRs 200, CDRs 200', and/or explosion-proof CDRs 202 Different alternative embodiments. The embodiments described herein are illustrative of the preferred embodiments of the invention and/or elements and the like. The scope of the present invention also covers alternative embodiments based on prior art.

Although the bearing isolator 10, the explosion-proof current shunt device 10', the CDRs 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 disclosed in the present invention illustrate the preferred The embodiments and the specific embodiments are not intended to limit the invention to a particular embodiment, and the embodiments disclosed herein are intended to be illustrative and to limit the scope of the invention.

Unless otherwise stated, the steps necessary for the methods described herein include any sequence of steps. Therefore, the method claims are not limited to a specific order, and are not intended to be a specific order unless specifically stated in the scope of the claims. This principle also applies to any non-speech disclosure, including but not limited to: logic with respect to steps or operational procedures; meanings derived from the meaning of the structure and label; the number of the embodiments described in this specification or form. This represents any possible non-narrative basis and may be used to explain nouns, including but not limited to logical judgments relative to step arrangements or processes, and literally read, or embodiments disclosed herein. The order and so on.

Applying the bearing isolator 10, the explosion-proof current shunt device 10', the current shunt device 11, the CDRs 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 to the device housing On the 16th, a stable and economical system can be formed by using the rotating shaft body 14 as a center point. When the CDR 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 are inserted into the bearing isolator 10, as shown in FIGS. 2 and 3, the conductive elements are mutually A relatively fixed and stable spatial relationship is formed within the device housing 16, thereby enhancing the collection and conduction of electrostatic discharges from the shafts 14, 207 to the ground, and may include, for example, an explosion-proof current shunt device 10', current via conductive elements. The shunt device 11, the CDRs 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion proof CDR 202 and the bearing isolator 10. The preferred motor grounding sealing system can directly set the main components together to compensate for the enthalpy of the shaft bodies 14, 207 (may be non-completely round as expected), and can be ensured for application to the bearing isolator 10, the explosion-proof current shunting device The difference between the external force on the 10', the current shunt device 11, the CDR 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 causes the conductive segment 46 and the shaft 14 to The difference in the distance between the surfaces is the smallest. Therefore, it promotes efficient charge conduction between the shaft bodies 14, 207 and the device housing 16.

Various embodiments of the bearing isolator 10, the explosion-proof current shunt device 10', the current shunt device 11, the CDRs 40, 80, 80a, 100, 160, 200, the capture CDR 200, the CDR 200', and/or the explosion-proof CDR 202 Or, for example, it can securely couple one element to another and simultaneously position the two elements relative to each other. In this type of embodiment and/or application, the two components may be coupled to each other by any suitable method and/or structure, and are not limited to the use of one or more O-rings and/or drive rings. , mechanism lock accessories (such as screws, bolts, tips, etc.), adhesives (tape, glue, epoxy, etc.), welding, tight fit (such as interference tight fit) and / or a combination thereof.

10‧‧‧Bearing isolator
11‧‧‧current shunt device
12‧‧‧ bearing
14‧‧‧Axis body
15‧‧‧Contact channels
16‧‧‧Device housing
17‧‧‧Seal
18‧‧‧O-ring
18a‧‧‧ pulley
20‧‧‧ Stator
21‧‧‧Internal troughing
22‧‧‧ Stator body
22a‧‧‧STAR O-ring groove
23‧‧‧ stator radial outer surface
23a‧‧‧radial holes
24‧‧‧Receiving grooves
26‧‧‧ stator axial projection
27‧‧‧External trough
28‧‧‧ stator radial projection
29‧‧‧ stator axial groove
29a‧‧‧ stator radial groove
30‧‧‧Rotor
32‧‧‧Rotor body
33‧‧‧Rotor axial outer surface
34a‧‧‧First axial interface spacing
34b‧‧‧First radial interface spacing
36‧‧‧Rotor axial projection
38‧‧‧Rotor radial projections
39‧‧‧Rotor axial groove
39a‧‧‧Rotor axial groove
40‧‧‧ Current Shunt Ring (CDR®)
41‧‧‧CDR subject
42‧‧‧Circular channels
43‧‧‧ first wall
44‧‧‧ second wall
45‧‧‧ radial outer surface of CDR
46‧‧‧Conducting section
48‧‧‧CDR main hole
50‧‧‧ inside body
52‧‧‧ Radial channels
52a‧‧‧Capture Department
54‧‧‧ mounting holes
56‧‧‧ ridge (snap)
58‧‧‧Main body main hole
60‧‧‧ outside body
62‧‧‧Base
64‧‧‧ annular groove
65a‧‧‧First annular shoulder
65b‧‧‧second annular shoulder
66‧‧‧ Radial projections
68‧‧‧Outside main body main hole
70‧‧‧
72‧‧‧Lock attachment
80‧‧‧ Radial CDR
80a‧‧‧Arc CDR
81‧‧‧Arc cut
82‧‧‧ Radial channels
83‧‧‧radial channel rack
85a‧‧‧radial outer surface
85b‧‧‧radial inner surface
86‧‧‧ Conductive components
86a‧‧‧Joint parts
86b‧‧‧Contacts
87‧‧‧ plug
88‧‧‧ main hole
100‧‧‧Multi-ring CDR
110‧‧‧Restrictions
111‧‧‧Restriction base
112a‧‧‧First annular groove
112b‧‧‧second annular groove
112c‧‧‧3rd annular groove
112d‧‧‧fourth annular groove
113‧‧‧Snap groove
114‧‧‧Restricted wall
115‧‧‧Restricted radial outer surface
116‧‧‧Electrical section
118‧‧‧Restricted main hole
120‧‧‧Act
122‧‧‧ Radial channels
122a‧‧‧Capture Department
125‧‧‧ Radial outer surface of the ring
126‧‧‧ ridge
127a‧‧‧inner axial surface
127b‧‧‧Outer axial surface
128‧‧‧The main hole of the ring body
130‧‧‧Separate ring segments
132‧‧‧ hole
140‧‧‧back ring
141‧‧‧ aligning sales
142‧‧‧Alignment pin reception
143‧‧‧Lock attachment hole
144‧‧‧Lock attachment receiver
145‧‧‧O-ring channel
146‧‧‧ hole
148‧‧‧Way ring lock attachment
160‧‧‧Adapted CDR
161‧‧‧ slot
162‧‧‧ Radial channels
163‧‧‧radial channel rack
164‧‧‧ Inside recess
165a‧‧‧radial outer surface
165b‧‧‧radial inner surface
166‧‧‧ incision
168‧‧‧ main hole
200‧‧‧CDR
202‧‧‧Insulation
210‧‧‧Power supply
212‧‧‧ indicator
213‧‧‧ switch
214‧‧‧Indicator conductive components
214a‧‧‧ indicator joints
214b‧‧‧Indicator contact
216‧‧‧Second conductive component
216a‧‧‧Second joint
216b‧‧‧second contact
218‧‧‧Transfer plug
200‧‧‧Selected CDRs
202‧‧‧Explosion-proof CDR
204‧‧‧Sleeve
204a‧‧‧Sleeve groove
205‧‧‧Lock attachment
206‧‧‧Lock attachment receiver
207‧‧‧Axis
209‧‧‧O-ring
210‧‧‧ Subject
211‧‧‧Flange
212‧‧‧Base
213‧‧‧ cover interface surface
214‧‧‧ body wall
215a‧‧‧radial outer surface
215b‧‧‧radial inner surface
216‧‧‧ pulley groove
217‧‧‧ pulley
218‧‧‧ main body hole
219‧‧‧ Reception Department
220‧‧‧Rotor body
221‧‧‧Flange
222‧‧‧Base
223‧‧‧Limited chamber
224‧‧‧ drive ring groove
226‧‧‧ buckle channels
228‧‧‧Rotor body hole
230‧‧‧Rotor Ring
232‧‧‧ Radial channels
232a‧‧‧Capture Department
233‧‧‧Rotor ring flange
234‧‧‧section groove
235‧‧‧ annular radial outer surface
236‧‧‧ ridge
237a‧‧‧inner axial surface
237b‧‧‧Outer axial surface
238‧‧‧Rotor toroidal main hole
239‧‧‧ drive ring
240‧‧‧ cover
246‧‧‧ pulley groove
247a‧‧‧The axial surface of the cover
247b‧‧‧ cover outer axial surface
248‧‧‧ cover main hole
249‧‧‧ hole
250‧‧‧ Stator
251a‧‧‧ stator radial outer surface
251b‧‧‧ stator radial inner surface
252‧‧‧radial holes
253‧‧‧stator groove
254‧‧‧Axial protrusion
255‧‧‧ radial projections
256‧‧‧Interface channels
257‧‧‧ plug
258‧‧‧Lock attachment channel
259‧‧‧ Conductive components
260‧‧‧Rotor
261a‧‧‧Rotor radial outer surface
261b‧‧‧Rotor radial inner surface
263‧‧‧Rotor groove
264‧‧‧Rotor axial projection
265‧‧‧Rotor radial projections
266‧‧‧O-shaped channels
270‧‧‧ cover
271a‧‧‧After axial inner surface of the cover
271b‧‧‧ cover axial outer surface
272‧‧‧ cover flange
273‧‧‧ cover recess
274‧‧‧ cover axial projection
275‧‧‧ cover radial projection
276‧‧‧ cover body
276a‧‧‧ body radial hole
278‧‧‧Gate body lock attachment channel
10'‧‧‧Explosion-proof current shunting device
12'‧‧‧ Bearing
14'‧‧‧Axis
15'‧‧‧Lock attachment
16'‧‧‧Device housing
17'‧‧‧Seal
18'‧‧‧O-ring
20'‧‧‧ Stator
20a‧‧‧stator cover
21'‧‧‧Internal trough
22'‧‧‧ Stator body
22a‧‧‧ Radial channels
23'‧‧‧ stator radial outer surface
24'‧‧‧Admitted groove
26'‧‧‧ stator axial projection
27'‧‧‧External trough
28'‧‧‧ stator radial projections
29'‧‧‧ stator axial groove
29a‧‧‧ stator radial groove
30'‧‧‧Rotor
30a‧‧‧Rotor cover
32'‧‧‧Rotor body
33'‧‧‧Rotor axial outer surface
33a‧‧‧Rotor radial outer surface
34a‧‧‧First axial interface spacing
34b‧‧‧First radial interface spacing
36'‧‧‧Rotor axial projection
38'‧‧‧Rotor radial projection
39'‧‧‧Rotor axial groove
39a‧‧‧Rotor radial groove

The following drawings are a part of the specification and are intended to provide a description of the embodiments of the invention. 1 is a perspective view of an embodiment of an electric motor that can be provided with a current shunt ring. Figure 2 is a perspective cross-sectional view of a bearing isolator in which a portion of the stator acts as a current shunt ring. Figure 3 is a cross-sectional view of a bearing isolator configured to receive a current shunt ring in the stator portion of the bearing isolator. Figure 4 is a perspective view of a first embodiment of a current shunt ring. Figure 5 is an axial view of a first embodiment of a current shunt ring. Figure 6 is a cross-sectional view of a first embodiment of a current shunt ring. Figure 7 is a perspective exploded view of a second embodiment of a current shunt ring. Figure 8A is a perspective view of the second embodiment of the current shunt ring assembled. Figure 8B is a perspective view of the second embodiment of the current shunt ring assembled with a mounting clip. Figure 9 is a detailed perspective view of one embodiment of an inner body of a second embodiment that may be provided with a current shunt ring. Figure 10A is an axial view of one embodiment of an inner body of a second embodiment that may be provided with a current shunt ring. Figure 10B is a cross-sectional view of one embodiment of an inner body of a second embodiment that may be provided with a current shunt ring. Figure 11 is a cross-sectional view of one embodiment of an inner body of a second embodiment that may be provided with a current shunt ring, with conductive fibers disposed therein. Figure 12 is a detailed perspective view of one embodiment of an outer side body of a second embodiment that may be provided with a current shunt ring. Figure 13A is an axial view of one embodiment of an outer side body of a second embodiment that may be provided with a current shunt ring. Figure 13B is a cross-sectional view of one embodiment of an outer side body of a second embodiment that may be provided with a current shunt ring. Figure 14A is an axial view of the second embodiment of the current shunt ring after assembly. Figure 14B is a cross-sectional view of the second embodiment of the current shunt ring assembled. Figure 15A is a perspective view of a third embodiment of the CDR. Figure 15B is an axial cross-sectional view of a third embodiment of the CDR. Figure 15C is a perspective view of one embodiment of a conductive component that can be used in some embodiments of the CDR. Figure 16A is a perspective view of a fourth embodiment of the CDR. Figure 16B is a perspective exploded view of a fourth embodiment of the CDR. Figure 16C is an axial cross-sectional view of a fourth embodiment of the CDR. Figure 16D is a detailed cross-sectional view of a fourth embodiment of a current shunt ring. Figure 17A is a perspective view of a fifth embodiment of a CDR having a spaced apart design. Figure 17B is a perspective exploded view of a fifth embodiment of the CDR. Figure 17C is an axial cross-sectional view of a fifth embodiment of the CDR. Figure 17D is a detailed cross-sectional view of a fifth embodiment of the CDR. Figure 18A is a perspective view of one embodiment of an adaptive CDR. Figure 18B is an axial cross-sectional view of one embodiment of an adaptive CDR. Figure 19A is a perspective view of one embodiment of an arcuate CDR. Figure 19B is an axial cross-sectional view of an embodiment of an arcuate CDR as shown in Figure 19A. Figure 19C is an isometric view of an embodiment of an arcuate CDR as shown in Figures 19A and 19B. Figure 20A is a perspective view of a second embodiment of an arcuate CDR. Figure 20B is an axial cross-sectional view of an embodiment of an arcuate CDR as shown in Figure 20A. Figure 20C is an isometric view of an embodiment of an arcuate CDR as shown in Figures 20A and 20B. Figure 21A is a schematic illustration of one embodiment of a CDR. Figure 21B is a detailed view of some of the elements of the embodiment of the CDR shown in Figure 21A. 21C is a schematic diagram of a possible configuration of a wireless embodiment of a CDR. Figure 22A is an exploded view of one embodiment of a CDR having a design of a snap-on rotor and an open face. Figure 22B is a perspective view of the capture type CDR shown in Figure 22A. Figure 22C is an axial cross-sectional view of the capture CDR shown in Figures 22A and 22B. Figure 22D is an axial cross-sectional view of another embodiment of a capture CDR as shown in Figures 22A-22C, but having a closed face. Figure 23A is an exploded view of another embodiment of a capture CDR in which the ends of the conductive segments are opposite to the axis. Figure 23B is a front elevational view of an embodiment of a truncated CDR as shown in Figure 23A. Figure 23C is an axial cross-sectional view of an embodiment of a truncated CDR as shown in Figures 23A and 23B. Figure 23D is a front elevational view of an embodiment of a truncated CDR as shown in Figures 23A-23C with the cover system removed for a view of this view. Figure 23E is a front view of one of the embodiments of the stator, and may be used in the embodiment of the truncated CDR as shown in Figures 23A-23D. Figure 24A is a perspective view of a first embodiment of an explosion-proof CDR. Figure 24B is a perspective view of an embodiment of an explosion proof CDR as shown in Figure 24A with the stator removed for a view of this view. Figure 24C is an exploded perspective view of an embodiment of the explosion-proof CDR shown in Figures 24A and 24B. Figure 24D is an axial cross-sectional view of an embodiment of an explosion proof CDR as shown in Figures 24A-24C. Figure 24E is another axial cross-sectional view of the embodiment of the explosion-proof CDR shown in Figures 24A-24D, wherein the cover is axially separated from the stator and the shaft and sleeve are removed for display of the view. . Figure 25A is an axial plan view of another embodiment of an explosion proof CDR. Figure 25B is an axial cross-sectional view taken along line H-H of the explosion-proof type CDR shown in Figure 25A. Figure 26A is an axial plan view of another embodiment of an explosion proof CDR. Figure 26B is an axial cross-sectional view taken along line F-F of the explosion-proof type CDR shown in Figure 26A. Figure 27A is an axial plan view of another embodiment of an explosion proof CDR. Figure 27B is an axial cross-sectional view taken along line F-F of the explosion-proof type CDR shown in Figure 27A. Figure 28A is an axial plan view of another embodiment of an explosion proof CDR. Figure 28B is an axial cross-sectional view taken along line J-J of the explosion-proof type CDR shown in Figure 28A. Figure 29A is an axial plan view of another embodiment of an explosion proof CDR. Figure 29B is an axial cross-sectional view taken along line J-J of the explosion-proof type CDR shown in Figure 29A. Figure 30 is an axial cross-sectional view of another feature of a bearing isolator. Figure 30A is an enlarged view of the top as shown in Figure 30. Figure 30B is an enlarged view of the bottom as shown in Figure 30. Figure 31 is a perspective view of the bearing isolator shown in Figure 30. 32A is an exploded perspective view of the bearing isolator shown in FIG. 30, in which the device housing, the shaft body, the O-ring, the seal, the plug, and the conductive component are not shown for the sake of illustration. 32B is another perspective exploded view of the bearing isolator shown in FIG. 30, wherein the device housing, the shaft body, the O-ring, the seal, the plug, and the conductive component are not shown for the display of the figure. . Figure 33 is an axial cross-sectional view of the rotor and stator as shown in Figures 32A and 32B. Figure 33A is an enlarged view of the top of the stator shown in Figure 33. Figure 33B is an enlarged view of the top of the rotor shown in Figure 33. Figure 34 is an axial cross-sectional view of another feature of a bearing isolator. Figure 35 is a perspective view of an explosion-proof current shunt device coupled to a shaft body and a device housing. Figure 35A is an explosion-proof current shunt device as shown in Figure 35, in which the device housing and shaft system are removed for display. Figure 35B is an explosion-proof current shunt device as shown in Figure 35, in which the device housing, shaft body and rotor cover are removed for display. Figure 35C is an explosion-proof current shunt device as shown in Figure 35, in which the equipment housing, shaft body and stator cover are removed for display. Figure 36 is an axial sectional view of the explosion-proof type current shunting device shown in Figure 35. Figure 36A is an enlarged view of the top of the explosion-proof current shunt device shown in Figure 36. Figure 37 is an exploded perspective view of the explosion-proof current shunt device shown in Figure 35, in which some of the components are removed for display.

10‧‧‧Bearing isolator

14‧‧‧Axis body

16‧‧‧Device housing

17‧‧‧Seal

18‧‧‧O-ring

20‧‧‧ Stator

22‧‧‧ Stator body

23‧‧‧ stator radial outer surface

24‧‧‧Receiving grooves

26‧‧‧ stator axial projection

28‧‧‧ stator radial projection

29‧‧‧ stator axial groove

30‧‧‧Rotor

32‧‧‧Rotor body

33‧‧‧Rotor axial outer surface

34a‧‧‧First axial interface spacing

34b‧‧‧First radial interface spacing

36‧‧‧Rotor axial projection

38‧‧‧Rotor radial projections

39‧‧‧Rotor axial groove

Claims (20)

A bearing isolator comprising: a. a stator connectable to a device housing, wherein the stator is electrically connected to the device housing, the stator comprising: i. a body; ii. one disposed on the main An axial groove in the body; iii. a radial hole extending from a radially outer surface of the stator to the axial groove; b. a rotor connectable to a shaft body from the housing The body extends and is rotatable relative thereto, wherein the rotor is electrically connected to the shaft, the rotor comprises: i. a body; ii. an axial projection extending from the body of the rotor and extending Into the radial bore of the stator, wherein the axial projection is provided with a radially outer surface; and c. a conductive component positioned in the radial bore, wherein the conductive component is electrically connected to the stator Connecting, and wherein one of the contact portions of the conductive member extends radially inwardly and radially outward of the axial projection of the rotor Contact. The bearing isolator of claim 1, wherein the radially outer surface of the axial projection of the rotor is further defined by a smooth and circular cross section. The bearing isolator of claim 1, wherein the stator further comprises a shoulder formed on a radially outer surface of the stator. The bearing isolator of claim 1, wherein the rotor further comprises a first radial projection extending from the axial projection, wherein the first radial projection defines a rotor A first axial boundary of the radially outer surface of the axial projection. The bearing isolator of claim 4, wherein the rotor further comprises a second radial projection extending from the axial projection, wherein the second radial projection defines a rotor a second axial boundary of the radially outer surface of the axial projection, wherein the distance between the first and second radial projections defines a contact channel and one of the contacts of the conductive component A portion is positioned between the first radial projection and the second radial projection of the rotor. The bearing isolator of claim 1, wherein the stator further comprises: a. a radial groove extending directly radially outward from the shaft body, wherein the radial groove is annular And b. an internal groove that is in fluid connection with the radial groove of the stator and the interior of the device housing. The bearing isolator of claim 1, wherein the stator further comprises: a. a radial groove extending directly radially outward from the shaft; and b. an external groove, and The radial grooves of the stator are in fluid connection. The bearing isolator of claim 7, wherein the rotor further comprises a radial groove extending to the shaft body in a radially inward direction. The bearing isolator of claim 8, wherein the radial groove provided in the stator is axially aligned with a radial groove provided in the rotor. The bearing isolator according to claim 1, further comprising: a. a second radial hole disposed in the stator, wherein the second radial hole extends from a radially outer surface of the stator to An axial groove; b. an insulating member positioned in the second radial hole; and c. an indicator assembly positioned in the insulating member, wherein the indicator assembly is not electrically connected to the stator . The bearing isolator of claim 10, further comprising a transmission plug, wherein the transmission plug is transmissible with the indicator assembly. An explosion-proof current shunt device comprising: a. a stator connectable to a device housing, wherein the stator is electrically connected to the device housing, the stator comprising: i. a body; ii. a radial a bore extending from a radially outer surface of the stator to a radially inner surface of the stator; b. a rotor engageable to a shaft, the shaft system extending from the device housing and rotatable relative thereto Wherein the rotor system is electrically connected to the shaft body, wherein a portion of the rotor is positioned between the stator and the shaft body, wherein the rotor comprises a body, and one of the radially outer surfaces of the body is partially a radial hole adjacent to the stator; c. a conductive component positioned in the radial hole, wherein the conductive component is electrically connected to the stator, and wherein a contact portion of the conductive component is radially Extending inwardly beyond the radially inner surface of the stator and in contact with the radially outer surface of the rotor; d. a flame path, one of the device housings The region extends to an outer region of the explosion-proof current shunt device, wherein the flame path is a first axial interface between the stator and the rotor and a first diameter between the stator and the rotor Defined to the interface. The explosion-proof current shunt device of claim 12, further comprising a sub-cover, wherein the stator cover is selectively engageable with an outer surface of the stator, and wherein the stator further comprises a neighboring An annular stator radial groove disposed in the bore and disposed in an inner diameter of the stator. The explosion-proof current shunt device of claim 13, wherein the stator cover is further defined to cover a radially outer opening of the radial bore when the stator cover is coupled to the stator. The explosion-proof current shunt device of claim 14, further comprising a rotor cover, wherein the rotor cover is selectively engageable with an outer surface of the rotor. The explosion-proof type current shunt device of claim 15, wherein the rotor cover further comprises an axial protrusion, wherein the axial protrusion of the rotor cover extends beyond a radial direction disposed in the stator Highlights. The explosion-proof current shunt device of claim 16, wherein the rotor cover further comprises an axial groove, wherein the axial groove of the rotor cover corresponds to an axis disposed in the rotor To the protruding part. The explosion-proof current shunt device of claim 17, wherein the rotor cover is coupled to the rotor by a first mechanism lock attachment, and wherein the stator cover is attached by a second mechanism lock To connect to the stator. The explosion-proof type current shunt device of claim 18, wherein the rotor further comprises a radial protrusion, wherein the radial protrusion disposed in the rotor is radially concave with respect to one of the stators groove. An explosion-proof method, the method comprising: a. connecting an explosion-proof current shunt device to a device housing, wherein a rotating shaft system extends from the device housing, and wherein the shaft system is positioned in the explosion-proof current shunt device b. defining a flame path within the explosion-proof current shunt device between the first portion of the explosion-proof current shunt device and the second portion of the explosion-proof current shunt device The at least one interface is defined, and the first portion is fixed to the device housing, and the second portion is coupled to the first portion; and c. the first portion is coupled to the at least one conductive component The conductive component is contactable with a portion of a rotor that is coupled to the shaft, the portion of the rotor being positioned within the explosion-proof current shunt device, and wherein the conductive component is capable of passing current from the shaft Conducted to the first portion of the explosion-proof current shunt device.