CN114776715A - Spacer assembly and bearing assembly - Google Patents
Spacer assembly and bearing assembly Download PDFInfo
- Publication number
- CN114776715A CN114776715A CN202210426986.3A CN202210426986A CN114776715A CN 114776715 A CN114776715 A CN 114776715A CN 202210426986 A CN202210426986 A CN 202210426986A CN 114776715 A CN114776715 A CN 114776715A
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- spacer
- bearing
- sensor
- ring
- assembly
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 146
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 230000006698 induction Effects 0.000 claims abstract description 25
- 238000005461 lubrication Methods 0.000 claims abstract description 21
- 230000001050 lubricating effect Effects 0.000 claims abstract description 17
- 230000008054 signal transmission Effects 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 68
- 239000010687 lubricating oil Substances 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a spacer assembly and a bearing assembly, wherein the bearing assembly comprises a bearing and a spacer assembly, the spacer assembly comprises an inner spacer and an outer spacer, one of the inner spacer and the outer spacer is provided with an oil supply channel, one of the inner spacer and the outer spacer is provided with a detection transmission module on the end surface facing the bearing, the detection transmission module is arranged in a mounting groove arranged on the corresponding side surface of the spacer, the detection transmission module comprises a temperature sensor, a vibration sensor and a rotating speed sensor, the rotating speed sensor is matched with an induction magnetic sheet, the induction magnetic sheet is used for being mounted on a bearing retainer, and the rotating speed sensor is matched with the induction magnetic sheet to detect the rotating speed of the bearing when in use; the detection transmission module also comprises a signal transmission module which is in communication connection with each sensor, and the control processing center is used for receiving signals of the detection transmission module so as to control the lubricating system to lubricate the bearing; the information basis of controlling the bearing lubrication by the control processing center is more comprehensive, and the lubrication effect is favorably improved.
Description
Technical Field
The invention relates to the field of intelligent bearings, in particular to a self-lubricating high-speed bearing, and specifically relates to a spacer ring assembly and a bearing assembly.
Background
The bearing comprises an inner ring, an outer ring and a retainer between the inner ring and the outer ring, wherein the retainer is provided with rolling bodies, one of the inner ring and the outer ring is a fixed ring and the other one is a rotating ring when in use, and the bearing is usually matched with the inner ring and the outer ring to respectively provide axial support for the inner ring and the outer ring of the bearing when in use.
The bearing is used as a core supporting basic component of a high-speed main shaft of mechanical equipment, is an important guarantee for realizing the processing performance, the function and the efficiency of the main machine equipment, and is directly related to the service life of the main machine equipment. Along with the higher requirements of host equipment on the rotating speed and stable and reliable operation of the bearing, the bearing industry provides an intelligent bearing concept, namely, sensing and regulating devices with different purposes are integrated and applied on the basis of the traditional bearing structure, a bearing unit with integrated structure and function is innovatively designed, and the state sensing, service life prediction, state regulation and the like of the bearing are realized through real-time online monitoring and system feedback of the running state of the bearing.
One of the main functions of the intelligent bearing system for realizing feedback is that the bearing can realize a self-lubricating function, the self-lubricating bearing controls lubricating oil to enter the bearing by arranging a sensor on the bearing assembly to detect the running state parameters of the bearing, so that the friction force between the rolling element and the inner ring and the friction force between the rolling element and the outer ring are effectively reduced by controlling the feeding amount of the lubricating oil when the bearing runs at a high speed, the lubricating effect is good, heat generated by the rotation of the rolling element is taken away, the temperature rise of the bearing is inhibited, and the service life of the bearing is prolonged.
For example, chinese patent application publication No. CN107420432A discloses a bearing assembly device, in which an outer space ring is provided with a mounting groove, and a temperature sensor and a vibration sensor are disposed in the mounting groove, so as to control the lubrication of a bearing by monitoring the temperature and vibration parameters of the bearing. However, in the actual use process, the bearing still shows the phenomenon of insufficient lubrication effect, and further the service life is limited.
Disclosure of Invention
The invention also aims to provide a bearing assembly to solve the problem that the existing self-lubricating bearing is insufficient in lubricating effect. The invention aims to provide a spacer ring assembly to better match bearing lubrication.
The technical scheme of the space ring assembly is as follows:
the spacer assembly comprises an inner spacer and an outer spacer, the inner spacer and the outer spacer are used for respectively corresponding to an inner ring and an outer ring of a bearing so as to form axial support on one axial side of the bearing, one of the inner spacer and the outer spacer is provided with an oil supply channel, the oil supply channel is provided with an oil inlet connected with an external lubricating system and an oil outlet facing a rolling cavity of the bearing, one of the inner spacer and the outer spacer is provided with a detection transmission module on the end surface facing the bearing, the detection transmission module is arranged in an installation groove arranged on the corresponding side surface of the spacer, the detection transmission module comprises a temperature sensor, a vibration sensor and a rotating speed sensor, the rotating speed sensor is matched with an induction magnetic sheet, the induction magnetic sheet is used for being arranged on the axial side surface of the bearing retainer, and the rotating speed sensor faces the induction magnetic sheet to be matched with the induction magnetic sheet to detect the rotating speed of the bearing when in use; the detection transmission module further comprises a signal transmission module which is in communication connection with each sensor, the signal transmission module is used for transmitting signals detected by each sensor to the control processing center, and the control processing center is used for receiving the signals of the detection transmission module so as to control the lubrication system to lubricate the bearing.
Has the beneficial effects that: the spacer assembly is provided with a temperature sensor and a vibration sensor, and is further provided with a rotating speed sensor, the rotating speed of the bearing is monitored by matching the rotating speed sensor on the fixed spacer and a sensing magnetic sheet on the bearing retainer, so that the lubricating system can be controlled by the control processing center according to the rotating speed parameters of the bearing during operation, the bearing is lubricated by an oil supply channel on the spacer, the information basis for controlling the lubrication of the bearing by the control processing center is more comprehensive, the lubricating effect is favorably improved, and the lubricating reliability of the bearing is ensured.
Furthermore, the temperature sensor, the vibration sensor and the rotating speed sensor are respectively distributed at different positions on the circumferential direction of the space ring.
Has the advantages that: the temperature sensor, the vibration sensor and the rotating speed sensor are convenient to install, mutual interference among the temperature sensor, the vibration sensor and the rotating speed sensor is guaranteed, and accurate and reliable detection is guaranteed.
Furthermore, the quantity of at least one of temperature sensor, vibration sensor, rotational speed sensor is more than two, the mounting groove is the annular groove of encircleing the axis arrangement of place space ring.
Has the beneficial effects that: the sensor mounting structure has the advantages that the density of the sensor arrangement is improved, the sensors can reliably receive signals, the detection accuracy is improved, the mounting groove is the annular groove, and a large number of sensors can be conveniently mounted on the corresponding space ring.
Furthermore, the oil supply channel and the detection transmission module are uniformly distributed on the same spacer ring, the oil supply channel comprises a straight hole section and a drainage hole section, the straight hole section radially and inwardly extends from the outer peripheral surface of the spacer ring, and the drainage hole section extends from the inner end of the straight hole section to the end surface of the spacer ring, facing the bearing, where the drainage hole section is located; in the footpath of space ring, the drainage hole section is located the inboard of straight hole section, and the mounting groove is located the outside of drainage hole section.
Has the beneficial effects that: the oil supply channel is formed by the straight hole section and the drainage hole section, so that oil supply is facilitated, oil supply is facilitated smoothly, and the oil supply channel is matched with the annular mounting groove in arrangement, so that the size of the space ring is reduced.
Furthermore, the included angle between the straight hole section and the drainage hole section is 75-90 degrees.
Has the beneficial effects that: the angle is set, so that the oil outlet of the oil supply channel can be facilitated to avoid cyclone in the bearing rolling cavity, lubricating oil can be effectively applied to the rolling body, and the lubricating effect can be guaranteed.
Furthermore, the space ring assembly is used for being clamped between the two paired bearings, the detection transmission modules are arranged on the end faces of the two sides of the space ring provided with the detection transmission modules, the inner end of the straight hole section is connected with two drainage hole sections, and the two drainage hole sections extend towards the two end faces of the space ring respectively.
Has the advantages that: satisfy the use occasion that spacer ring subassembly axial both ends all had the bearing, moreover, the both sides bearing of spacer ring subassembly shares a straight hole section, simple structure arranges the compactness.
Furthermore, the outer space ring is a fixed space ring, the radial distance from the temperature sensor to the axis of the fixed space ring is greater than that from the vibration sensor to the axis of the fixed space ring, and the radial distance from the vibration sensor to the axis of the fixed space ring is greater than that from the rotating speed sensor to the axis of the fixed space ring; or the inner space ring is a fixed space ring, the radial distance from the rotating speed sensor to the axis of the fixed space ring is greater than the radial distance from the vibration sensor to the axis of the fixed space ring, and the radial distance from the vibration sensor to the axis of the fixed space ring is greater than the radial distance from the temperature sensor to the axis of the fixed space ring.
Has the advantages that: the relative arrangement can enable the position of the temperature sensor to be relatively close to the end face of the outer ring or the end face of the inner ring of the bearing, and the temperature of the bearing ring can be effectively sensed; the vibration sensor is relatively close to the rotating ring of the bearing, so that the vibration measurement is sensitive; the rotating speed sensor is close to the induction magnetic sheet on the retainer for accurate speed measurement.
Furthermore, two temperature sensors, two vibration sensors and two rotating speed sensors are arranged respectively, each temperature sensor, each vibration sensor and each rotating speed sensor are distributed at different positions in the circumferential direction of the space ring, the two temperature sensors and the two rotating speed sensors are uniformly distributed in the circumferential direction of the space ring, the diameter of the two temperature sensors is perpendicular to the diameter of the two rotating speed sensors, and the central angle formed by the positions of the two vibration sensors and the axis of the space ring is 90 degrees.
Has the beneficial effects that: make vibration sensor vertical distribution, can conveniently monitor the vibration in two directions, the measured value is more reasonable.
Further, one of the inner and outer spacers is a fixed spacer corresponding to a fixed ring of the bearing, and the detection transmission module is arranged on the fixed spacer.
Has the beneficial effects that: the detection transmission module is arranged on the fixed spacer ring, so that the detection transmission module does not rotate along with the rotation of the bearing when the bearing operates, the detection transmission module is positioned in a relatively stable working environment, and the use reliability of the detection transmission module is guaranteed.
The technical scheme of the bearing assembly is as follows:
the bearing assembly comprises a space ring assembly and a bearing assembled on at least one side of the space ring assembly when in use, the bearing comprises an inner ring, an outer ring, a rolling body and a retainer, the rolling body and the retainer are positioned between the inner ring and the outer ring, the retainer is a non-metal retainer, the space ring assembly comprises an inner space ring and an outer space ring which are respectively corresponding to the inner ring and the outer ring of the bearing so as to form axial support for the bearing on one side in the axial direction, one of the inner space ring and the outer space ring is provided with an oil supply channel, the oil supply channel is provided with an oil inlet connected with an external lubricating system and an oil outlet facing a rolling cavity of the bearing, one of the inner space ring and the outer space ring is provided with a detection transmission module on the end surface facing the bearing, the detection transmission module is arranged in an installation groove arranged on the corresponding side surface of the space ring, the detection transmission module comprises a temperature sensor, a vibration sensor and a rotating speed sensor, and a rotating speed sensor are matched with induction magnetic sheets, the induction magnetic sheet is arranged on the axial side surface of the bearing retainer, and the rotating speed sensor faces the induction magnetic sheet to be matched with the induction magnetic sheet to detect the rotating speed of the bearing when in use; the detection transmission module further comprises a signal transmission module which is in communication connection with each sensor, the signal transmission module is used for transmitting signals detected by each sensor to the control processing center, and the control processing center is used for receiving the signals of the detection transmission module so as to control the lubrication system to lubricate the bearing.
Has the advantages that: not only are temperature sensor and vibration sensor equipped with on the spacer subassembly, still be equipped with speed sensor, through on the fixed spacer speed sensor and the bearing holder response magnetic sheet cooperation monitor the bearing rotational speed, thereby make control processing center control lubricating system according to the rotational speed parameter when the bearing moves, and then lubricate the bearing through fuel feeding channel on the spacer, control processing center control bearing lubricated information foundation is more comprehensive, be favorable to improving lubricated effect, guarantee the lubricated reliability of bearing assembly, make the life of bearing assembly longer.
Furthermore, the temperature sensor, the vibration sensor and the rotating speed sensor are respectively distributed at different positions in the circumferential direction of the space ring.
Has the beneficial effects that: the temperature sensor, the vibration sensor and the rotating speed sensor are convenient to install, mutual interference among the temperature sensor, the vibration sensor and the rotating speed sensor is guaranteed, and accurate and reliable detection is guaranteed.
Furthermore, the quantity of at least one of temperature sensor, vibration sensor, speed sensor three is more than two, the mounting groove is the annular groove of encircleing the axis arrangement of the space ring that is located.
Has the beneficial effects that: the sensor mounting structure has the advantages that the density of the sensor arrangement is improved, the sensors can reliably receive signals, the detection accuracy is improved, the mounting groove is the annular groove, and a large number of sensors can be conveniently mounted on the corresponding space ring.
Furthermore, the oil supply channel and the detection transmission module are uniformly distributed on the same spacer ring, the oil supply channel comprises a straight hole section and a drainage hole section, the straight hole section radially and inwards extends from the outer peripheral surface of the spacer ring, and the drainage hole section extends from the inner end of the straight hole section to the end surface of the spacer ring, facing the bearing, where the drainage hole section is located; in the radial direction of the space ring, the drainage hole section is positioned on the inner side of the straight hole section, and the mounting groove is positioned on the outer side of the drainage hole section.
Has the beneficial effects that: the oil supply channel is formed by the straight hole section and the drainage hole section, so that oil supply is facilitated, oil supply is facilitated smoothly, and the arrangement of the oil supply channel and the annular mounting groove is matched with each other, so that the size of the space ring is reduced.
Furthermore, the included angle between the straight hole section and the drainage hole section is 75-90 degrees.
Has the beneficial effects that: set up the angle like this, can be favorable to the oil-out of oil supply passageway to dodge the cyclone in the bearing rolling chamber for lubricating oil can be effectively used on the rolling element, is favorable to guaranteeing lubricated effect.
Furthermore, the space ring assembly is used for being clamped between the two paired bearings, the detection transmission modules are arranged on the end faces of the two sides of the space ring provided with the detection transmission modules, the inner end of the straight hole section is connected with two drainage hole sections, and the two drainage hole sections extend towards the two end faces of the space ring respectively.
Has the beneficial effects that: satisfy the use occasion that spacer ring subassembly axial both ends all had the bearing, moreover, the both sides bearing of spacer ring subassembly shares a straight hole section, simple structure arranges the compactness.
Furthermore, the outer space ring is a fixed space ring, the radial distance from the temperature sensor to the axis of the fixed space ring is greater than the radial distance from the vibration sensor to the axis of the fixed space ring, and the radial distance from the vibration sensor to the axis of the fixed space ring is greater than the radial distance from the rotating speed sensor to the axis of the fixed space ring; or the inner spacer is a fixed spacer, the radial distance from the rotating speed sensor to the axis of the fixed spacer is greater than that from the vibration sensor to the axis of the fixed spacer, and the radial distance from the vibration sensor to the axis of the fixed spacer is greater than that from the temperature sensor to the axis of the fixed spacer.
Has the advantages that: the relative arrangement can enable the position of the temperature sensor to be relatively close to the end face of the outer ring or the end face of the inner ring of the bearing, and the temperature of the bearing ring can be effectively sensed; the vibration sensor is relatively close to the rotating ferrule, so that the vibration measurement is sensitive; the rotating speed sensor is close to the induction magnetic sheet on the retainer for accurate speed measurement.
Furthermore, two temperature sensors, two vibration sensors and two rotating speed sensors are arranged respectively, each temperature sensor, each vibration sensor and each rotating speed sensor are distributed at different positions in the circumferential direction of the space ring, the two temperature sensors and the two rotating speed sensors are uniformly distributed in the circumferential direction of the space ring, the diameter of the two temperature sensors is perpendicular to the diameter of the two rotating speed sensors, and the central angle formed by the positions of the two vibration sensors and the axis of the space ring is 90 degrees.
Has the beneficial effects that: make vibration sensor vertical distribution, can conveniently monitor the vibration in two directions, the measured value is more reasonable.
Further, one of the inner and outer spacers is a fixed spacer corresponding to a fixed ring of the bearing, and the detection transmission module is arranged on the fixed spacer.
Has the beneficial effects that: the detection transmission module is arranged on the fixed spacer ring, so that the detection transmission module does not rotate along with the rotation of the bearing when the bearing operates, the detection transmission module is positioned in a relatively stable working environment, and the detection transmission module is favorable for ensuring the reliability in use.
Drawings
FIG. 1 is a schematic cross-sectional view of a bearing assembly at a rotational speed sensor location in embodiment 1;
FIG. 2 is a schematic structural view of the fixed space ring in FIG. 1;
FIG. 3 is a flow chart of a technical principle for realizing self-lubrication of the bearing assembly in embodiment 1;
fig. 4 is a schematic cross-sectional view of a bearing assembly at a rotational speed sensor position in embodiment 2.
In the figure: 01. fixing the ferrule; 02. rotating the ferrule; 03a, an induction magnetic sheet; 03b, a rotation speed sensor; 04. a rolling body; 06. a holder; 08. a temperature sensor; 09. a vibration sensor; 10. an oil supply tank; 11. fixing the space ring; 12. rotating the space ring; 13. an oil supply nozzle; 14. and (7) installing a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" may occur to other than the same element in a process, method, article, or apparatus that comprises the element.
In the description of the invention, unless expressly stated or limited otherwise, the terms "mounted", "connected" and "connected" when used in this context are to be construed broadly, as for example they may be fixedly connected, releasably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the bearing assembly of the present invention:
as shown in fig. 1 and 2, the bearing assembly includes a bearing and a spacer assembly, the bearing includes an inner race and an outer race, a retainer 06 is installed between the inner race and the outer race of the bearing, a rolling body 04 is installed on the retainer 06, the spacer assembly is located at one side of the bearing when in use, the spacer assembly includes an inner spacer and an outer spacer, the inner spacer forms an axial support for the inner race of the bearing, and the outer spacer forms an axial support for the outer race of the bearing. The bearing assembly in this embodiment is a high-speed spindle support bearing assembly, the rotating ring 02 of the bearing is an inner ring, the fixed ring 01 of the bearing is an outer ring, correspondingly, the rotating spacer 12 of the spacer assembly is an inner spacer, and the fixed spacer 11 is an outer spacer.
The radial thickness of the fixed spacer 11 is greater than that of the rotating spacer 12, the radial thickness of the fixed spacer 11 is greater than that of the fixed ring 01, and the end surface of the fixed spacer 11 facing the bearing has a portion facing the rolling cavity of the bearing. The end face of one side of the fixed space ring 11 facing the bearing is provided with a mounting groove 14, the mounting groove 14 is a ring groove and extends circumferentially around the axis of the fixed space ring 11, the notch of the mounting groove 14 faces the bearing, and part of the notch is opposite to the end face of the fixed ring 01 of the bearing and part of the notch is opposite to the rolling cavity of the bearing.
A detection transmission module is arranged in the mounting groove 14 and comprises a rotating speed sensor 03b, a temperature sensor 08 and a vibration sensor 09. The number of the rotating speed sensors 03b is two, the two rotating speed sensors are uniformly distributed in the circumferential direction of the fixed space ring 11, the number of the temperature sensors 08 is two, the two temperature sensors are uniformly distributed in the circumferential direction of the fixed space ring 11, and the diameters of the two temperature sensors 08 are perpendicular to the diameters of the two rotating speed sensors 03 b. Two vibration sensors 09 are arranged, and the two vibration sensors 09 are perpendicular to a connecting line between the center points of the axial end faces of the fixed space ring 11.
The rotational speed sensors 03b, the temperature sensors 08, and the vibration sensors 09 are located in the mounting groove 14 at different positions in the circumferential direction of the fixed spacer 11. In the radial direction of the fixed spacer 11, the rotation speed sensor 03b is arranged close to the rotating spacer 12, the vibration sensor 09 is arranged on the side of the rotation speed sensor 03b opposite to the rotating spacer 12, the vibration sensor 09 is arranged between the rotation speed sensor 03b and the temperature sensor 08, the distance from the temperature sensor 08 to the axis of the fixed spacer 11 is greater than the distance from the vibration sensor 09 to the axis of the fixed spacer 11, and the distance from the vibration sensor 09 to the axis of the fixed spacer 11 is greater than the distance from the rotation speed sensor 03b to the axis of the fixed spacer 11.
The rotating speed sensor 03b adopts a Hall sensor, the retainer 06 of the bearing is a non-metallic material retainer 06, an induction magnetic sheet 03a is arranged on one side end face of the retainer 06 of the bearing facing the fixed space ring 11, the induction magnetic sheet 03a corresponds to the rotating speed sensor 03b, and an induction part of the rotating speed sensor 03b faces the induction magnetic sheet 03a on the retainer 06, so that in the rotating process of the bearing, the rotating speed sensor 03b can detect a signal of the induction magnetic sheet 03a, and the rotating speed condition of the bearing is monitored according to the alternating characteristic of the signal.
The temperature sensor 08 is a contact type thermocouple sensor and is used for monitoring the temperature of the bearing; the vibration sensor 09 is an MEMS vibration acceleration sensor, and the vibration condition of the bearing is monitored.
The fixed space ring 11 is integrated with a sensor data acquisition device, a sensor data storage device and a wireless transmitting device, the sensor data acquisition device, the sensor data storage device and the wireless transmitting device form a signal transmission module which is used for being in communication connection with an external control processing center, and the control processing center is a data receiving control processing center. The signal transmission module is also mounted in the mounting groove 14 (not shown in the drawings).
In the embodiment, the bearing lubrication mode adopts oil-gas lubrication, and the main principle is that the compressed air and the oil gas generator are utilized to provide required precise trace lubricating oil for the bearing.
Be equipped with lubricating structure on fixed spacer 11, lubricating structure includes the communicating oil supply passage with bearing roll chamber, and oil supply passage includes straight hole section and drainage hole section, and the straight hole section radially inwards extends straight line from the outer peripheral face of fixed spacer 11, and the drainage hole section is extended to a side end face of fixed spacer 11 towards the bearing by the inner slope of straight hole section, and in the radial direction of fixed spacer 11, the drainage hole section is located the inboard of straight hole section. The straight hole section of the oil supply channel forms an oil supply groove 10, the drainage hole section forms an oil supply nozzle 13, the oil supply groove 10 is provided with an opening on the outer peripheral surface of the fixed space ring 11, the oil supply nozzle 13 is provided with an opening facing the rolling cavity of the bearing, and the diameter of the oil supply nozzle 13 is 1 mm. The central line of the oil supply groove 10 and the central line of the oil supply nozzle 13 form an included angle of 75 degrees, and the opening of the oil supply nozzle 13 faces to the area of the rolling cavity of the bearing, which is close to the rotating ferrule 02. The mounting groove 14 is located radially outside the drainage bore section. The oil supply nozzle 13 communicates with the oil supply groove 10. In the radial direction of the fixed space ring 11, the opening of the oil supply nozzle 13 is located inside the mounting groove 14 and avoids the positions of the sensors and the signal transmission module.
The oil supply tank 10 is connected with an external lubricating system, the external lubricating system comprises an external oil supply pipeline connected with the oil supply tank 10, a lubricating oil pump and a flow meter connected with the external oil supply pipeline, and the data receiving control processing center is connected with the lubricating oil pump in a control mode.
As shown in figure 3, the bearing temperature variation amplitude can be sensed by the rotating speed sensor 03b, the temperature sensor 08 and the vibration sensor 09, and simultaneously the vibration and rotating speed fluctuation conditions of the bearing caused by insufficient lubrication or failure can be judged, the signal transmission module carries out data acquisition and storage on the bearing state data sensed by the sensors and transmits the sensor data to the data receiving control processing center, the data receiving control center sets the limit threshold values of the bearing temperature, the vibration and the rotating speed, the threshold value alarm setting priority levels are respectively temperature rise amplitude > vibration > rotating speed, the data receiving control center compares the received sensor data with the set alarm threshold value, once the sensor data reaches the set alarm threshold value, the data control processing center sends an oil supply instruction and feeds back and controls the lubricating oil pump to start lubrication, lubricating times and the quantity of lubricating oil gas are set according to the alarm threshold value condition, the lubricating oil pump is matched with the flowmeter to realize trace and quantitative lubrication, and under the high pressure of the lubricating oil pump, the quantitative high-pressure oil gas is used for supplying oil to the interior of the bearing through an external oil supply pipeline, the oil supply groove 10 and the oil supply nozzle 13, so that trace and quantitative splash lubrication of the oil gas is realized, and trace self-lubrication of the bearing is realized.
Meanwhile, the sensor is arranged on the fixed spacer ring 11, so that the integrity of the bearing ring can be kept, the structural strength of the bearing ring is ensured, the bearing performance of the bearing is ensured, and the service life is prolonged. The induction magnetic sheet 03a is arranged on the end face of the holder 06, so that the induction magnetic sheet 03a can be conveniently mounted.
In addition, when the bearing operates under high-speed and ultra-high-speed conditions, due to the interaction of the rolling elements 04 in the bearing and the retainer 06, cyclones are formed on two sides of the rolling elements 04 in the bearing cavity, and if a high-pressure injection method is directly adopted to inject lubricating oil into the bearing, vibration of the bearing is aggravated or squeal, the lubricating oil is wasted, and the lubricating and cooling effects of the bearing cannot be achieved. In this embodiment, the arrangement of the included angle formed between the opening direction of the oil supply nozzle 13 and the axis of the fixed space ring 11 can effectively avoid the obstruction of high-pressure cyclone in the bearing wall, the sensor collects the bearing running state data fed back by monitoring, and the data receiving, controlling and processing center starts the lubricating oil pump to realize quantitative lubrication.
The bearing service state sensing, the data acquisition and analysis are carried out, the oil pumping of the oil pump is realized by comparing the threshold values of the temperature, the vibration and the rotating speed of the bearing, the oil-gas lubrication passage with a flow control meter is used for realizing the direct transmission of the oil-gas to the optimal part needing lubrication in the bearing cavity, the abnormal phenomena of midway leakage, interruption, inaccurate transmission part and the like are avoided, the micro-quantity and accurate quantitative oil supply is carried out on the bearing, and the compressed air is used for cooling, so that the bearing has the advantages of less heat productivity, low temperature rise, reliable lubrication, high limit rotating speed and prolonged service life, is suitable for the field of high-speed main shafts, and realizes the long-service life operation of the main shafts.
Embodiment 2 of the bearing assembly in the present invention:
the difference between this embodiment and embodiment 1 is that the bearing assembly in embodiment 1 is a single set of bearing, and in this embodiment, as shown in fig. 4, the bearing assembly includes two bearings used in pairs, the two bearings are respectively disposed on two axial sides of the spacer assembly, two axial side end faces of the fixed spacer 11 both face the bearings, two axial side end faces of the fixed spacer 11 both have mounting grooves 14, both side mounting grooves 14 have detection and transmission modules, and the rotation speed sensor 03b, the temperature sensor 08, and the vibration sensor 09 in the mounting grooves 14 on both sides share a signal transmission module. Correspondingly, two oil supply nozzles 13 are symmetrically arranged and extend towards rolling cavities of bearings on two sides of the space ring assembly in an inclined mode respectively, and the two oil supply nozzles 13 share one oil supply groove 10.
Embodiment 3 of the bearing assembly in the present invention:
the present embodiment is different from embodiment 1 in that the bearing assembly in embodiment 1 is used to support a high-speed spindle, the fixed ring is an outer ring, the rotating ring is an inner ring, the fixed spacer is an outer spacer, the rotating spacer is an inner spacer, and the sensor is disposed on the outer spacer. In this embodiment, the fixed collar is an inner collar, the rotating collar is an outer collar, the fixed spacer is an inner spacer, the rotating spacer is an outer spacer, the sensor is disposed on the inner spacer, and at this time, the inner side wall of the temperature sensor, which is close to the mounting groove and is in the radial direction of the fixed spacer, is disposed.
Embodiment 4 of the bearing assembly in the present invention:
the difference between the embodiment and the embodiment 1 is that the oil supply channel and the detection transmission module in the embodiment 1 are both arranged on the fixed spacer. In the embodiment, the oil supply channel is arranged on the fixed spacing ring, and the detection transmission module is arranged on the rotary spacing ring.
Embodiment 5 of the bearing assembly in the present invention:
the difference between this embodiment and embodiment 1 is that the oil supply passage in embodiment 1 includes a straight hole section and a drainage hole section, and an included angle of 75 ° is formed between the straight hole section and the drainage hole section. In this embodiment, the oil supply passage is a straight hole structure extending from the outer peripheral surface of the fixed spacer to the end surface in an inclined manner.
Embodiment 6 of the bearing assembly in the present invention:
the difference between the embodiment and the embodiment 1 is that the oil supply channel in the embodiment 1 comprises a straight hole section and a drainage hole section, and an included angle of 75 degrees is formed between the straight hole section and the drainage hole section. In this embodiment, an included angle of 80 degrees is formed between the straight hole section and the drainage hole section. In other embodiments, the angle between the straight hole section and the drainage hole section may be 90 °, or may take other values within the range of 75 ° to 90 °.
Embodiment 7 of the bearing assembly in the present invention:
the present embodiment is different from embodiment 1 in that the mounting groove in embodiment 1 is a ring groove extending around the axis of the fixed space ring. In the embodiment, the mounting groove comprises a plurality of mounting concave parts which are arranged at intervals in the circumferential direction of the fixed space ring, each sensor is correspondingly arranged in each mounting concave part, and the detection transmission module is mounted in one of the concave parts.
Embodiment 8 of the bearing assembly in the present invention:
the present embodiment is different from embodiment 1 in that the signal transmission module in embodiment 1 is a sensor data acquisition, sensor data storage and wireless transmission device. In this embodiment, the signal transmission module is a sensor data acquisition and wireless transmission device.
Embodiment 9 of the bearing assembly of the present invention:
the present embodiment is different from embodiment 1 in that two rotation speed sensors, two temperature sensors, and two vibration sensors are provided in embodiment 1. In this embodiment, only one rotation speed sensor is provided. In other embodiments, only one temperature sensor may be provided, and certainly, three or more rotation speed sensors, three or more temperature sensors, and three or more vibration sensors may be provided.
the present embodiment is different from embodiment 1 in that, in embodiment 1, the vibration sensor is disposed between the rotation speed sensor and the temperature sensor in the radial direction of the fixed spacer. In this embodiment, the temperature sensor is disposed between the vibration sensor and the rotation speed sensor in the radial direction of the fixed spacer. In other embodiments, the rotation speed sensor may be disposed between the vibration sensor and the temperature sensor
this embodiment is different from embodiment 1 in that the temperature sensor in embodiment 1 is a contact thermocouple sensor. In the present embodiment, the temperature sensor is a non-contact infrared MEMS (Micro-Electro-Mechanical systems, abbreviated as MEMS) sensor.
the present embodiment is different from embodiment 2 in that two oil supply nozzles in embodiment 2 share one oil supply groove. In this embodiment, the fixed space ring is provided with two oil supply grooves respectively corresponding to the oil supply nozzles.
the present embodiment is different from embodiment 1 in that each sensor in embodiment 1 is provided at a different position in the circumferential direction of the fixed spacer. In the present embodiment, one temperature sensor, one vibration sensor, and one rotation speed sensor are provided at the same position in the circumferential direction of the fixed spacer.
the present embodiment is different from embodiment 1 in that the vibration sensor, the temperature sensor, and the rotation speed sensor in embodiment 1 are provided on different circumferences of the fixed spacer, and the distances from the vibration sensor, the temperature sensor, and the rotation speed sensor to the axis are different in the radial direction of the fixed spacer. In the embodiment, the distances between the temperature sensor, the vibration sensor and the rotating speed sensor and the axis are the same in the radial direction of the fixed spacing ring, and the temperature sensor, the vibration sensor and the rotating speed sensor are arranged on the same circumference of the fixed spacing ring.
Embodiments of the spacer assembly of the present invention:
the structure of the spacer assembly in this embodiment is the same as that described in any of embodiments 1 to 14 of the bearing assembly described above, and details thereof are omitted here.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments without inventive effort, or some technical features of the present invention may be substituted with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The spacer assembly comprises an inner spacer and an outer spacer, the inner spacer and the outer spacer are used for respectively corresponding to an inner ring and an outer ring of a bearing so as to form axial support on one axial side of the bearing, and the spacer assembly is characterized in that one of the inner spacer and the outer spacer is provided with an oil supply channel, the oil supply channel is provided with an oil inlet used for being connected with a lubricating system and an oil outlet facing a rolling cavity of the bearing, one of the inner spacer and the outer spacer is provided with a detection transmission module on the end surface facing the bearing, the detection transmission module is installed in an installation groove arranged on the corresponding side surface of the spacer, the detection transmission module comprises a temperature sensor, a vibration sensor and a rotating speed sensor, the rotating speed sensor is matched with an induction magnetic sheet, the induction magnetic sheet is used for being installed on the axial side surface of the bearing retainer, and the rotating speed sensor faces the induction magnetic sheet to be matched with the induction magnetic sheet to detect the rotating speed of the bearing when the rotating speed sensor is used; the detection transmission module further comprises a signal transmission module which is in communication connection with each sensor, the signal transmission module is used for transmitting signals detected by each sensor to the control processing center, and the control processing center is used for receiving the signals of the detection transmission module to control the lubrication system to lubricate the bearing.
2. The spacer assembly as claimed in claim 1, wherein the temperature sensor, the vibration sensor and the rotation speed sensor are respectively disposed at different positions in a circumferential direction of the spacer.
3. The spacer ring assembly as claimed in claim 2, wherein at least one of the temperature sensor, the vibration sensor and the rotation speed sensor is two or more, and the mounting groove is a ring groove disposed around the axis of the spacer ring.
4. The spacer ring assembly as claimed in claim 3, wherein the oil supply channel and the detection transmission module are both disposed on the same spacer ring, the oil supply channel includes a straight hole section and a drainage hole section, the straight hole section extends radially inward from the outer peripheral surface of the spacer ring, and the drainage hole section extends from the inner end of the straight hole section to the end surface of the spacer ring facing the bearing; in the footpath of space ring, the drainage hole section is located the inboard of straight hole section, and the mounting groove is located the outside of drainage hole section.
5. A spacer assembly as claimed in claim 4 wherein the angle between the straight bore section and the drainage bore section is in the range 75 ° to 90 °.
6. The spacer ring assembly as claimed in claim 4, wherein the spacer ring assembly is adapted to be clamped between two pairs of bearings, the detection and transmission module is disposed on both end surfaces of the spacer ring on which the detection and transmission module is disposed, the inner end of the straight hole section is connected to two of the drainage hole sections, and the two drainage hole sections extend toward both end surfaces of the spacer ring, respectively.
7. The spacer assembly of claim 3 wherein the outer spacer is a fixed spacer, the radial distance from the temperature sensor to the axis of the fixed spacer is greater than the radial distance from the vibration sensor to the axis of the fixed spacer, and the radial distance from the vibration sensor to the axis of the fixed spacer is greater than the radial distance from the rotation sensor to the axis of the fixed spacer; or the inner space ring is a fixed space ring, the radial distance from the rotating speed sensor to the axis of the fixed space ring is greater than the radial distance from the vibration sensor to the axis of the fixed space ring, and the radial distance from the vibration sensor to the axis of the fixed space ring is greater than the radial distance from the temperature sensor to the axis of the fixed space ring.
8. The spacer assembly as claimed in claim 3, wherein there are two temperature sensors, two vibration sensors and two rotation speed sensors, each temperature sensor, each vibration sensor and each rotation speed sensor are distributed at different positions in the circumferential direction of the spacer, the two temperature sensors and the two rotation speed sensors are uniformly distributed in the circumferential direction of the spacer, the two temperature sensors are located at a diameter perpendicular to the diameter of the two rotation speed sensors, and the two vibration sensors are located at a central angle of 90 ° with respect to the axis of the spacer.
9. A spacer assembly as claimed in any of claims 1 to 8 wherein one of the inner and outer spacers is a fixed spacer corresponding to a fixed race of the bearing, the sensing and transmission module being disposed on the fixed spacer.
10. A bearing assembly comprising a cage assembly and a bearing which in use is fitted to at least one side of the cage assembly, the bearing comprising an inner and an outer race and rolling elements and a cage therebetween, the cage being a non-metallic cage, characterised in that the cage assembly is as claimed in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426986.3A CN114776715A (en) | 2022-04-21 | 2022-04-21 | Spacer assembly and bearing assembly |
| PCT/CN2022/117980 WO2023201969A1 (en) | 2022-04-21 | 2022-09-09 | Spacer ring assembly and bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426986.3A CN114776715A (en) | 2022-04-21 | 2022-04-21 | Spacer assembly and bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776715A true CN114776715A (en) | 2022-07-22 |
Family
ID=82430564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210426986.3A Pending CN114776715A (en) | 2022-04-21 | 2022-04-21 | Spacer assembly and bearing assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114776715A (en) |
| WO (1) | WO2023201969A1 (en) |
Cited By (3)
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| CN116608213A (en) * | 2023-07-20 | 2023-08-18 | 山东国创精密机械有限公司 | Wear-resisting wind-powered electricity generation bearing frame |
| WO2023201969A1 (en) * | 2022-04-21 | 2023-10-26 | 洛阳轴承研究所有限公司 | Spacer ring assembly and bearing assembly |
| CN117469194A (en) * | 2023-12-28 | 2024-01-30 | 诺顿风机(潍坊)有限公司 | Novel intelligent monitoring's special bearing box of axial fan |
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| WO2023201969A1 (en) | 2023-10-26 |
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