CN113759173A - Bearing insulation resistance detection device - Google Patents
Bearing insulation resistance detection device Download PDFInfo
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- CN113759173A CN113759173A CN202010483429.6A CN202010483429A CN113759173A CN 113759173 A CN113759173 A CN 113759173A CN 202010483429 A CN202010483429 A CN 202010483429A CN 113759173 A CN113759173 A CN 113759173A
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- 238000009413 insulation Methods 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 title claims abstract description 47
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- 229910052802 copper Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention provides a bearing insulation resistance detection device, comprising: the bearing comprises a resistance measuring device, a circular ring-shaped fixing component and a conductive medium, wherein the inner surface of the circular ring-shaped fixing component is provided with a circular clamping groove for fixing the bearing, the conductive medium is arranged at the bottom of the clamping groove, and the inner surface of the conductive medium is in transition fit with an insulating layer of the bearing. The bearing insulation resistance detection device provided by the invention can ensure that the conductive medium is in good contact with the insulation coating, can accurately measure the insulation performance of the bearing, improves the detection reliability, does not damage the appearance quality of the bearing, and meets the detection requirement of products.
Description
Technical Field
The invention relates to the field of insulation bearing detection, in particular to a bearing insulation resistance detection device.
Background
The insulating bearing adopted on the motor generally adopts a special spraying process, a high-quality insulating coating is sprayed on the outer surface of the bearing, the binding force of the coating and a matrix is strong, the insulating property is good, the electric corrosion effect of induced current on the bearing can be avoided, the current is prevented from damaging lubricating grease, a rolling body and a roller path, and the service life of the bearing is prolonged. The insulation film resistance is a key technical index of the insulation bearing, and directly influences the service life of the motor bearing. Before the insulating bearing is used, the installation condition of the bearing needs to be simulated during the detection of the insulating resistance, the insulating resistance value is accurately measured, whether the insulating property of the bearing meets the use requirement can be judged, and if the insulating resistance of the bearing is judged to be qualified by mistake, the weak point of the insulating resistance of the bearing is broken down in the use process to cause the electric corrosion and failure.
At present, the insulation bearing is detected by cutting a metal belt conductive medium into the width of the bearing, completely wrapping the metal belt conductive medium on the surface of a bearing outer ring, winding a lead on the surface of the metal belt conductive medium, and detecting the insulation resistance value between the lead and the bearing by using a megohmmeter.
However, the existing detection device and detection method for the insulation resistance of the insulation bearing are simple, and the accuracy of the detection result is difficult to ensure.
Disclosure of Invention
The invention provides a bearing insulation resistance detection device, which is used for at least solving the technical problem of inaccurate detection result of the bearing insulation resistance.
In order to achieve the above object, the present invention provides a bearing insulation resistance detection device, comprising: resistance measuring device, the fixed subassembly of ring shape and conducting medium.
And the inner surface of the annular fixing component is provided with an annular clamping groove for fixing the bearing.
The conductive medium is arranged at the bottom of the clamping groove, and the inner surface of the conductive medium is in transition fit with the insulating layer of the bearing. The conductive medium is in good contact with the bearing insulating coating, the insulating property of the bearing can be accurately obtained during measurement, the appearance quality of the bearing cannot be damaged, and the detection requirement of a product is met.
In one possible embodiment, the annular ring-shaped fixing assembly comprises: the first semicircular ring fixing body and the second semicircular ring fixing body.
The two ends of the first semicircular ring fixing body and the second semicircular ring fixing body are respectively provided with a left side wing and a right side wing, and the left side wing of the first semicircular ring fixing body is rotatably connected with the left side wing of the second semicircular ring fixing body.
Optionally, the right wing of the first semicircular ring fixing body is detachably connected with the right wing of the second semicircular ring fixing body.
The first semicircular ring fixing main body and the second semicircular ring fixing main body are formed by splitting the circular ring fixing component, so that the insulating bearing can be conveniently taken and placed, and the maneuverability of the device is improved.
In one possible embodiment, the annular ring-shaped fixing component comprises a plurality of clamping grooves for fixing the bearings of different types.
Optionally, the plurality of clamping grooves are arranged in a stepped mode along the axial direction of the annular fixing component, and the insulating bearing is further convenient to take and place.
Optionally, a mark is arranged at a position of the left side wing and/or the right side wing of the first semicircular ring fixing main body corresponding to the clamping groove, and the mark is used for indicating the type of the bearing.
Optionally, a pin mounting hole is formed in the first semicircular ring fixing body, and the pin mounting hole is used for inserting a probe of the resistance measuring device into contact with the conductive medium.
In one possible implementation manner, the bearing insulation resistance detection apparatus further includes: a base.
The two sides of the base are provided with grooves, the top of the base is provided with an arc-shaped groove, and the second semicircular ring fixing main body is arranged in the arc-shaped groove.
Optionally, a counter bore is formed in the top surface of the base, a through hole is formed in the left side wing and/or the right side wing of the second semicircular ring fixing body, and the base and the second semicircular ring fixing body penetrate through the counter bore through a fastener and are detachably connected with the through hole.
Optionally, the outer surface of the conductive medium is in clearance fit with the bottom of the groove, so that the conductive medium cannot deform when being embedded into the clamping groove, and the experimental result is not influenced.
According to the bearing insulation resistance detection device provided by the embodiment of the invention, the annular fixing component is arranged, the annular clamping groove is formed in the inner surface of the annular fixing component, the annular conductive medium is embedded in the annular clamping groove, the outer surface of the conductive medium is in clearance fit with the groove bottom of the clamping groove, the conductive medium is ensured not to deform, the bearing is fixed in the clamping groove, the inner surface of the conductive medium is in transition fit with the bearing insulation layer, the insulation layer is completely coated by the conductive medium, the conductive medium is ensured to be in good contact with the insulation coating, the insulation performance of the bearing can be accurately measured, the detection reliability is improved, the appearance quality of the bearing is not damaged, and the detection requirement of a product is met. And the fixed subassembly of ring shape still includes a plurality of draw-in grooves, and a plurality of draw-in grooves are used for fixing the bearing of multiple model, satisfy the detection demand of the insulating bearing that different motors were selected to simple structure, operation are swift, high-efficient accurate, mobility is strong, the cost of labor drops into fewly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bearing insulation resistance detection apparatus according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a circular ring-shaped fixing component of a bearing insulation resistance detection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base of a bearing insulation resistance detection apparatus according to an embodiment of the present invention.
Reference numerals:
100-a circular ring shaped stationary assembly;
110-card slot;
120-a first semi-circular ring fixation body;
121-pin mounting holes;
130-a second semicircular ring fixing body;
200-a conductive medium;
300-left flank;
400-right flank;
500-identification;
600-a base;
610-grooves;
620-arc groove;
630-counter bore.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An asynchronous motor, also called an induction motor, is an alternating current motor which generates electromagnetic rotation by the interaction of an air gap rotating magnetic field and induced current of a rotor winding, thereby realizing the conversion of electromechanical energy into mechanical energy.
The insulation bearing is usually inspected in two stages during the assembly of the motor: before the bearing is installed, detecting the insulation performance of the bearing; and in the motor general assembly process, measuring the insulation resistance between the rotating shaft and the end cover or the bearing seat, and verifying the insulation resistance performance of the insulation bearing. Before the insulating bearing is used, the installation condition of the bearing needs to be simulated during the detection of the insulating resistance, and the insulating resistance value is accurately measured, so that whether the insulating property of the bearing meets the use requirement can be judged.
At present, the insulation bearing is detected by cutting a metal belt conductive medium into the width of the bearing, completely wrapping the metal belt conductive medium on the surface of a bearing outer ring, winding a lead on the surface of the metal belt conductive medium, and detecting the insulation resistance value between the lead and the bearing by using a megohmmeter.
In view of this, the embodiment of the present invention provides a device for detecting insulation resistance of a bearing, in which a circular fixing component and a conductive medium are provided, an annular clamping groove is provided on an inner surface of the circular fixing component, the conductive medium is annularly provided at a bottom of the annular clamping groove, and the bearing is fixed in the annular clamping groove, so that the inner surface of the conductive medium and an insulation coating on an outermost ring surface of the bearing can be in transition fit, good contact between the conductive medium and the insulation coating is ensured, the insulation performance of the bearing can be accurately measured, the reliability of detection is improved, the appearance quality of the bearing cannot be damaged, and the detection requirement of a product is met.
A bearing insulation resistance detection apparatus according to an embodiment of the present invention is described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a bearing insulation resistance detection apparatus according to an embodiment of the present invention, fig. 2 is a cross-sectional view of a circular ring fixing component of the bearing insulation resistance detection apparatus according to the embodiment of the present invention, and fig. 3 is a schematic structural diagram of a base of the bearing insulation resistance detection apparatus according to the embodiment of the present invention.
The bearing insulation resistance detection device provided by the embodiment of the invention comprises: therefore, the bearing insulation resistance detection apparatus provided by the embodiment of the present invention is an insulation resistance measuring instrument including a megohmmeter, and the instrument is used for measuring the resistance value of the fixed insulation resistance.
Referring to fig. 1 to 2, the bearing insulation resistance detection apparatus according to the embodiment of the present invention further includes: a circular ring-shaped fixing member 100 and a conductive medium 200.
The conductive medium 200 should have good conductivity, in order to ensure good contact between the insulating coating of the bearing and the conductive medium during the measurement process, and the appearance quality of the bearing is not affected, the conductive medium 200 may be copper, for example, the conductive medium 200 may be brass, and since the resistance of the brass is much smaller than that of the insulating coating of the bearing, the influence of the insulation resistance of the brass on the measurement result can be ignored.
The conductive medium 200 is installed on the inner surface of the circular ring-shaped fixing member 100, and the circular ring-shaped fixing member 100 is made of an insulating material, for example: nylon, plastic etc. and the fixed subassembly 100 of ring shape can realize that annular conducting medium 200 is to the full cladding of bearing insulating coating, can guarantee to contact well between conducting medium 200 and the bearing insulating coating and avoid the bearing insulating coating damage.
As shown in fig. 1 to 2, an annular clamping groove 110 for fixing a bearing is formed in an inner surface of the annular fixing component 100, the size of the clamping groove 110 is adapted to the size of the bearing to be measured, the conductive medium 200 is disposed at a groove bottom of the clamping groove 110, and a clearance fit is achieved between the conductive medium 200 and the groove bottom of the clamping groove 110, so that the conductive medium 200 is prevented from being deformed to affect measurement in the process of disposing the conductive medium 200 in the clamping groove 110.
It should be mentioned that, the side surface of the conductive medium 200 is in clearance fit with the side wall of the slot 110, so that the conductive medium 200 can completely cover the bearing insulating coating.
Certainly, the conductive medium 200 can also be annular, and it is easy to understand that, the insulating bearing is fixed in the clamping groove 110, and the conductive medium 200 covers the bearing insulating coating completely, so that the effect of transition fit between the inner surface of the conductive medium 200 and the bearing insulating coating is achieved, the conductive medium 200 is in good contact with the bearing insulating coating, and during measurement, the insulating property of the bearing can be accurately obtained, the appearance quality of the bearing cannot be damaged, and the detection requirement of a product is met.
In the example of fig. 1, the slot 110 may be integrally formed on the inner surface of the annular securing component 100. Therefore, the assembly difficulty is effectively reduced, and an operator can fix the insulating bearing very conveniently.
Here, it should be explained that "transition fit" refers to a fit that may have a clearance or interference, i.e., the tolerance band of the bore and the tolerance band of the shaft overlap, but the resulting clearance and interference are generally small; "clearance fit" refers to a fit having a clearance (including a minimum clearance equal to zero) where the tolerance band of the bore is above the tolerance band of the shaft, i.e., the actual size of the bore is always greater than or equal to the actual size of the shaft.
Referring to fig. 1, in some embodiments of the present invention, to facilitate the handling of the insulation bearing and improve the mobility of the apparatus, the annular fixing assembly 100 includes: a first semi-circular ring fixing body 120 and a second semi-circular ring fixing body 130.
The two ends of the first semicircular ring fixing body 120 and the second semicircular ring fixing body 130 may be respectively provided with a left wing 300 and a right wing 400, for example, the two ends of the first semicircular ring fixing body 120 are respectively provided with a left wing 300 and a right wing 400, and the two ends of the second semicircular ring fixing body 130 are respectively provided with a left wing 300 and a right wing 400. The left wing 300 of the first semi-circular ring fixing body 120 and the left wing 300 of the second semi-circular ring fixing body 130 are rotatably connected, for example: as shown in fig. 1, the left wing 300 of the first semi-circular ring fixing body 120 and the left wing 300 of the second semi-circular ring fixing body 130 are rotatably connected by a hinge, but the present invention is not limited thereto, and the left wing 300 and the right wing may be rotatably connected by a rotating shaft, etc., without any limitation.
It is easy to understand that, when the insulation bearing is measured, the right side wing 400 of the first semicircular ring fixing body 120 may be lifted at first, then the insulation bearing is fixed in the slot 110 of the second semicircular ring fixing body 130, and then the right side wing 400 of the first semicircular ring fixing body 120 and the right side wing 400 of the second semicircular ring fixing body 130 are closed, so that the insulation bearing may be fixed.
Optionally, in order to make the bearing insulation coating layer closely contact with the conductive medium 200 and at the same time facilitate the taking and placing of the insulation bearing, in some embodiments of the present invention, the right wing 400 of the first semi-circular ring fixing body 120 is detachably connected with the right wing 400 of the second semi-circular ring fixing body 130, for example: as shown in fig. 1, the right wing 400 of the first semi-circular ring fixing body 120 and the right wing 400 of the second semi-circular ring fixing body 130 are connected and closed by a bayonet lock, but the invention is not limited thereto, and the connection manner between the right wing 400 of the first semi-circular ring fixing body 120 and the right wing 400 of the second semi-circular ring fixing body 130 is not limited thereto.
Alternatively, the left wing 300 and the right wing 400 may be formed as a single piece with the first semicircular ring fixing body 120 and the second semicircular ring fixing body 130, so as to improve the assembling efficiency, and here, it should be noted that, in this context, the two components are formed as a single piece, which means that the two components are not detachable, and the two components are formed as an integral piece, which means that the two components are simultaneously machined and formed as a single non-detachable integral component.
In some embodiments of the present invention, referring to fig. 1-2, a plurality of slots 110 are disposed on an inner surface of the annular fixing member 100, and the plurality of slots 110 are used for fixing a plurality of different types of insulating bearings.
It is easy to understand that the plurality of slots 110 are configured to have different sizes, and are suitable for measuring the resistance values of insulating bearings of various models, and can also realize the measurement of the resistance values of a plurality of insulating bearings.
In order to further facilitate the taking and placing of the insulation bearing, the plurality of slots 110 may be arranged in a stepped manner along the axial direction of the annular fixing component 100.
It should be noted that the "stepped arrangement" means that, as shown in fig. 1 and fig. 2, the size of the slots 110 is sequentially arranged from large to small along the axial direction of the circular ring-shaped fixing component 100, so that the fixing of the bearing is facilitated.
In a possible implementation manner, referring to fig. 1 and 2, the left wing 300 and/or the right wing 400 of the first semi-circular ring fixing body 120 are provided with a mark 500 at a position corresponding to the slot 110, and the mark 500 is used for indicating the type of the bearing.
It is to be construed that "and/or" means: the left wing 300 and the right wing 400 of the first semicircular ring fixing body 120 are provided with the marks 500 at positions corresponding to the slots 110, or the left wing 300 or the right wing 400 of the first semicircular ring fixing body 120 are provided with the marks 500 at positions corresponding to the slots 110, generally, the marks 500 are arranged on the right wing 400 of the first semicircular ring fixing body 120, and therefore the operator can conveniently recognize the marks.
It will be readily appreciated that the identifier 500 may be used to indicate the type of bearing, to ensure that the bearing is properly positioned, and to prevent the insulated bearing from being misplaced.
Optionally, the first semi-circular ring fixing body 120 may further include a pin mounting hole 121, and the pin mounting hole 121 is used for inserting a probe of the resistance measuring device into contact with the conductive medium 200.
For example, as shown in fig. 1, a pin mounting hole 121 is formed in the top of the first semi-circular ring fixing body 120, and after the insulation bearing is fixed, two test probes of the resistance measuring device are respectively placed in the pin mounting hole 121 and the inner wall of the bearing outer ring, so that the insulation resistance value can be read.
Of course, the pin mounting hole 121 may also be disposed on the second semicircular ring fixing body 130, as long as it is ensured that the test probe of the resistance measuring apparatus can be conveniently and smoothly contacted with the conductive medium 200, and here, no limitation is imposed on the location where the pin mounting hole 121 is disposed.
An operation flow according to an embodiment of the present invention is described below with reference to the drawings.
a. The circular ring-shaped fixing member 100 is opened by the right wing 400 of the first semicircular ring fixing body 120;
b. the conductive media 200 of the two semicircular rings are respectively embedded in the clamping grooves 110 of the first semicircular ring fixing main body 120 and the second semicircular ring fixing main body 130, so that the conductive media 200 are in clearance fit with the groove bottoms of the clamping grooves 110;
c. placing the insulated bearing in the slot 110 of the second semicircular ring fixing body 130;
d. the right side wing 400 of the first semicircular fixing body 120 and the right side wing 400 of the second semicircular fixing body 130 are closed to realize the closing of the circular fixing assembly 100, so that the inner surface of the conductive medium 200 is in transition fit with the insulating layer of the insulating bearing;
e. and reading the insulation resistance value by using the resistance measuring device, adjusting the test voltage of the resistance measuring device during measurement, and respectively arranging two test probes of the resistance measuring device on the contact pin mounting hole 121 and the inner wall of the bearing outer ring, so that the insulation resistance value can be read.
Referring to fig. 1 in conjunction with fig. 3, in some embodiments of the present invention, the bearing insulation resistance detection apparatus further includes: a base 600.
The base 600 of some embodiments of the present invention is described below with reference to the drawings.
Specifically, base 600 has the fixed subassembly 100 of fixed ring shape and makes things convenient for the handheld or function that removes of operating personnel, as shown in fig. 1 and fig. 3, recess 610 has been seted up to the both sides of base 600, and recess 610 can be convenient for operating personnel handheld or remove base 600, and it is worth mentioning, two recesses 610 can be with the vertical axis mutual symmetry of base, so, can make the focus of base 600 be located on vertical axis, guarantee that the fixed subassembly 100 of ring shape places the stability on base 600.
The bottom of base 600 has still been seted up arc recess 620, and the size of a dimension of arc recess 620 is adapted to the size of a dimension of the fixed subassembly 100 of circle ring shape, places the fixed main part 130 of second semicircle ring among arc recess 620 alright realize the fixed subassembly 100 of circle ring shape fixed.
In an embodiment of the present invention, referring to fig. 3, in order to further ensure the stability of the circular ring-shaped fixing assembly 100, a counter bore 630 is provided on the top surface of the base 600, a through hole is provided on the left side wing 300 and/or the right side wing 400 of the second semicircular fixing body 130, and the base 600 and the second semicircular fixing body 130 are detachably connected with the through hole by a fastener passing through the counter bore 630.
In summary, the insulation resistance detecting device for bearings according to some embodiments of the present invention has the following aspects
Has the advantages of simple process and low cost.
A. Good contact between the conductive medium and the insulating coating of the insulating bearing can be ensured in the measuring process, the insulating property of the bearing can be accurately measured, the appearance quality of the bearing cannot be damaged, and the detection requirement of a product can be met.
B. The base type transplanting design can be carried out according to different types of bearings selected by the motor on the motor production line, and the detection requirements of the insulation bearings selected by different products on the motor production line are met.
C. The device has the advantages of simple structure, quick operation, high efficiency, accuracy, strong maneuverability and low labor cost investment.
D. After the device is put into use, the problems of difficult detection of the insulation resistance and personnel configuration before the bearing assembly on a motor production line can be effectively solved.
According to the bearing insulation resistance detection device provided by the embodiment of the invention, the annular fixing component is arranged, the annular clamping groove is formed in the inner surface of the annular fixing component, the annular conductive medium is embedded in the annular clamping groove, the outer surface of the conductive medium is in clearance fit with the groove bottom of the clamping groove, the conductive medium is ensured not to deform, the bearing is fixed in the clamping groove, the inner surface of the conductive medium is in transition fit with the bearing insulation layer, the insulation layer is completely coated by the conductive medium, the conductive medium is ensured to be in good contact with the insulation coating, the insulation performance of the bearing can be accurately measured, the detection reliability is improved, the appearance quality of the bearing is not damaged, and the detection requirement of a product is met. And the ring-shaped fixing component also comprises a plurality of clamping grooves which are used for fixing bearings of various types, so that the detection requirements of the insulation bearings selected by different motors are met. And simple structure, swift, the high-efficient accuracy of operation, mobility are strong, the cost of labor drops into a few.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", and the like, are used to indicate an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the position or element referred to must have a particular orientation, be of particular construction and operation, and thus, are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a bearing insulation resistance detection device, includes resistance measurement device, its characterized in that still includes: the device comprises a circular fixing component and a conductive medium;
the inner surface of the annular fixing component is provided with an annular clamping groove for fixing the bearing;
the conductive medium is arranged at the bottom of the clamping groove, and the inner surface of the conductive medium is in transition fit with the insulating layer of the bearing.
2. The apparatus for detecting insulation resistance of a bearing according to claim 1, wherein the annular fixing member comprises: the first semicircular ring fixing body and the second semicircular ring fixing body;
the two ends of the first semicircular ring fixing main body and the second semicircular ring fixing main body are respectively provided with a left side wing and a right side wing;
the left flank of the first semicircular ring fixing body is rotatably connected with the left flank of the second semicircular ring fixing body.
3. The apparatus of claim 2, wherein the right wing of the first semi-circular ring fixing body is detachably connected to the right wing of the second semi-circular ring fixing body.
4. The device for detecting the insulation resistance of the bearing according to any one of claims 2 to 3, wherein the annular fixing component comprises a plurality of clamping grooves, and the clamping grooves are used for fixing the bearings of different types.
5. The device for detecting insulation resistance of a bearing according to claim 4, wherein the plurality of slots are arranged in a stepped manner along the axial direction of the annular fixing component.
6. The device for detecting the insulation resistance of the bearing according to claim 5, wherein a mark is arranged at a position of the left side wing and/or the right side wing of the first semicircular ring fixing body corresponding to the clamping groove, and the mark is used for indicating the type of the bearing.
7. The device for detecting insulation resistance of a bearing according to any one of claims 2 to 3, wherein the first semicircular ring fixing body is provided with a pin mounting hole, and the pin mounting hole is used for inserting a probe of the resistance measuring device into contact with the conductive medium.
8. The bearing insulation resistance detection apparatus according to any one of claims 2 to 3, further comprising: a base;
the two sides of the base are provided with grooves, the top of the base is provided with an arc-shaped groove, and the second semicircular ring fixing main body is arranged in the arc-shaped groove.
9. The bearing insulation resistance detection device according to claim 8, wherein a counter bore is provided on a top surface of the base, a through hole is provided on the left flank and/or the right flank of the second semicircular ring fixing body, and the base and the second semicircular ring fixing body are detachably connected with the through hole by passing through the counter bore by a fastener.
10. The bearing insulation resistance detection apparatus according to any one of claims 1 to 3, wherein an outer surface of the conductive medium is clearance-fitted to the groove bottom.
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| CN202010483429.6A CN113759173A (en) | 2020-06-01 | 2020-06-01 | Bearing insulation resistance detection device |
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| CN202010483429.6A CN113759173A (en) | 2020-06-01 | 2020-06-01 | Bearing insulation resistance detection device |
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| CN113759173A true CN113759173A (en) | 2021-12-07 |
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| CN109227094A (en) * | 2018-11-20 | 2019-01-18 | 廖凤清 | Machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure |
| JP2019152532A (en) * | 2018-03-02 | 2019-09-12 | Ntn株式会社 | Insulated bearings, insulation resistance measuring jig and insulation resistance measuring method |
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| US5796262A (en) * | 1996-02-14 | 1998-08-18 | Westinghouse Electric Corporation | Method and apparatus for diagnosing bearing insulation impedance of a rotating electrical apparatus |
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