CN207050639U - A kind of device of the end-play of quick measurement bearing - Google Patents
A kind of device of the end-play of quick measurement bearing Download PDFInfo
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- CN207050639U CN207050639U CN201721019326.4U CN201721019326U CN207050639U CN 207050639 U CN207050639 U CN 207050639U CN 201721019326 U CN201721019326 U CN 201721019326U CN 207050639 U CN207050639 U CN 207050639U
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- play
- screw mandrel
- quick measurement
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- 238000005259 measurement Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 3
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 2
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
Bearing mnanufacture detection production technical field is the utility model is related to, more particularly to a kind of device of the end-play of quick measurement bearing；The utility model includes base, clamping device, push-pull mechanism, measuring mechanism；Pressure sensor is installed on push-pull mechanism；In the utility model, clamping device clamps bearing, the disk that push-pull mechanism makes to be connected with coaxial bearing carries out push-and-pull move, push-pull mechanism also detects its push-and-pull action power using pressure sensor simultaneously, when reaching predetermined active force, measuring mechanism carries out reading to two positions of push-and-pull and measured respectively, calculates axial gap；The utility model is simple in construction, easy to operate, automatic to read record test data without manually carrying out pushing to disk, accurate testing and quick, improves testing efficiency.
Description
Technical field
Bearing mnanufacture detection production technical field is the utility model is related to, more particularly to a kind of axial direction of quick measurement bearing
The device of clearance.
Background technology
When bearing axial play is without outer active force, relatively another lasso of a lasso, moved from an axial limit position
To the average value of the axial distance of opposite extreme position.
Clearance is the important quality index of rolling bearing, and clearance is divided into end-play and end-play, in process of production,
The end-play of bearing is essential items for inspection.Because end-play is too small, work at high temperature, part expands, during bearing rotary
Frictional heating, phenomenon can be killed in operating；Clearance is excessive, axial float easily occurs during bearing operation, and noise is big.
The method of testing for motor bearings is to meet the disk or disk of its size in the installation of motor shaft socket end at present, is passed through
Dynamometer applies axial power on disk, axially applies pulling force by amesdial reading, axially applies thrust again, pass through amesdial
Reading, between numerical value both it and as axial gap；This method needs people to hold dynamometer test, relatively elaborate, test
Efficiency is low and nor very precisely, test period is grown.
The content of the invention
Described above in order to overcome the shortcomings of, the purpose of this utility model is to provide a kind of axial play of quick measurement bearing
The device of gap, it clamps bearing using clamping device, and the disk that push-pull mechanism makes to be connected with coaxial bearing carries out push-and-pull move, together
When push-pull mechanism also detect its push-and-pull action power using pressure sensor, when reaching predetermined active force, measuring mechanism is to pushing away
Draw two positions to carry out reading respectively to measure, calculate axial gap.
The technical scheme in the invention for solving the technical problem is：
A kind of device of the end-play of quick measurement bearing, wherein, including base and the use that is arranged on the base
Clamping device in clamping bearing, the push-pull mechanism for the progress push-and-pull of pair disk being connected with the coaxial bearing, for pair
Disk displacement during push-and-pull carries out the measuring mechanism of reading；It is provided with the push-pull mechanism for being pushed away to it
The pressure sensor for drawing active force to be detected.
As it is of the present utility model it is a kind of improve, Power Component that the push-pull mechanism includes being used for providing transfer motion power,
The transmission component of motion, the pull-fork assembly for moving the disk are driven by the Power Component.
As further improvement of the utility model, the Power Component includes motor, coaxially connected with the motor
The worm screw connect, the worm gear being connected with the worm engaging.
Further improved as of the present utility model, the transmission component includes support and set on the bracket
Guide rod and the worm gear carry out coaxially connected cylindrical cam, push rod, and being provided with the groove of the cylindrical cam can be described
The ball rolled in groove, movable block is slidably connected on the guide rod, the ball passes through with the movable block to be connected
Bar is connected, and the push rod is connected in the connecting rod.
Further improved as of the present utility model, the pull-fork assembly include being connected to shift fork on the push rod,
It is connected to block the shift fork head of the disk with the shift fork.
Further improved as of the present utility model, the clamping device includes the supporting table being connected on the base
And runner assembly, the clamp assembly for clamping the bearing being connected in the supporting table.
As it is of the present utility model further improve, the runner assembly include handwheel, line slideway, the first sliding block,
Second sliding block, the first screw mandrel, the second screw mandrel, the first nut and the second nut, first sliding block, the second sliding block are slidably connected
On the line slideway, first nut is connected on first sliding block, and second nut is connected to described second
On sliding block, the handwheel, the first screw mandrel and the second screw mandrel are coaxially connected together, the rotation of first screw mandrel and second screw mandrel
To on the contrary, first screw mandrel is threadedly coupled with first nut, second screw mandrel is carried out with second nut
Threaded connection.
Further improved as of the present utility model, the clamp assembly includes two clamping parts, the clamping section
Part includes movable stand, is connected to clamp the V-clevis of the bearing with the movable stand.
Further improved as of the present utility model, the V-clevis is hinged on the movable stand.
Further improved as of the present utility model, the measuring mechanism includes the control being connected on the base
Device, the electric pushrod being connected with the controller, the amesdial being connected with the electric pushrod, the controller control the electricity
Dynamic push rod drives the amesdial to be moved on the base.
In the utility model, clamping device clamps bearing, and the disk that push-pull mechanism makes to be connected with coaxial bearing is pushed away
Movement is drawn, while push-pull mechanism also detects its push-and-pull action power using pressure sensor, when reaching predetermined active force, measurement
Mechanism carries out reading to two positions of push-and-pull and measured respectively, calculates axial gap；The utility model is simple in construction, operation
It is convenient, automatic to read record test data without manually carrying out pushing to disk, accurate testing and quick, improve test effect
Rate.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of clamping device of the present utility model；
Fig. 3 is the structural representation of pull-fork assembly of the present utility model；
Reference：1- bases, 2- clamping devices, 21- supporting tables, 22- runner assemblies, 221- motors, 222- straight lines are led
Rail, the sliding blocks of 223- first, the sliding blocks of 224- second, the screw mandrels of 225- first, the screw mandrels of 226- second, the nuts of 227- first, 228- second
Nut, 23- clamp assemblies, 231- movable stands, 232-V clevis heads, 3- push-pull mechanisms, 31- Power Components, 311- motors, 312-
Worm screw, 313- worm gears, 32- transmission components, 321- supports, 322- guide rods, 323- cylindrical cams, 324- push rods, 325- movable blocks,
326- connecting rods, 327- grooves, 328- balls, 33- pull-fork assemblies, 331- shift forks, 332- shift fork heads, 4- pressure sensors, 5-
Bearing, 6- disks, 7- measuring mechanisms, 71- controllers, 72- electric pushrods, 73- amesdials.
Embodiment
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in Figure 1, Figure 2 and Figure 3, the device of the end-play of a kind of quick measurement bearing of the present utility model, including
Base 1 and it is arranged on being used to clamp the clamping device 2 of bearing 5, entering for a pair disk 6 coaxially connected with bearing 5 on base 1
The push-pull mechanism 3 of row push-and-pull, for disk 6 during push-and-pull displacement carry out reading measuring mechanism 7；Push-pull mechanism
Pressure sensor 4 for being detected to its push-and-pull action power is installed on 3.
In the utility model, clamping device 2 clamps bearing 5, and push-pull mechanism 3 enters the disk 6 coaxially connected with bearing 5
Row push-and-pull move, while push-pull mechanism 3 also detects its push-and-pull action power using pressure sensor 4, when reaching predetermined active force
When, measuring mechanism 7 carries out reading to two positions of push-and-pull and measured respectively, calculates axial gap.
In the utility model, push-and-pull move refers to two processes, and for one to push away moving process, push-pull mechanism 3 promotes circle
Disk 6 shrinks to the direction of bearing 5, secondly to draw moving process, push-pull mechanism 3 pulls disk 6 to be stretched to the opposite direction of bearing 5,
Two displacements just occur during two, the data sum of two displacements is exactly axial gap.
The utility model provides an embodiment of push-pull mechanism 3, and push-pull mechanism 3 includes being used to provide transfer motion power
Power Component 31, the transmission component 32 of motion, the pull-fork assembly 33 for moving disk 6 are driven by Power Component 31.
Further, Power Component 31 includes motor 311, coaxially connected worm screw 312 and worm screw 312 is carried out with motor 311
The worm gear 313 of connection is engaged, motor 311 drives worm screw 312 to move, and drives worm gear 313 to move, can then drive cylindrical cam
323 rotate.
Further, transmission component 32 includes support 321 and the guide rod 322 being arranged on support 321, entered with worm gear 313
The coaxially connected cylindrical cam 323 of row, push rod 324, it is provided with and can be carried out in groove 327 in the groove 327 of cylindrical cam 323
The ball 328 of rolling, movable block 325 is slidably connected on guide rod 322, ball 328 is connected with movable block 325 by connecting rod 326
Connect, push rod 324 is connected in connecting rod 326, and cylindrical cam 323 rotates, and ball 328 rolls in its inner groovy 327, is driven and is moved
Motion block 325 slides on guide rod 322, while drives connecting rod 326 to move back and forth, and then drives the push-and-pull campaign back and forth of push rod 324,
Push rod 324 can be with pin joint in connecting rod 326, and push rod 324 is L-shaped, and spring is provided between shift fork 331 and push rod 324.
As shown in figure 3, the utility model provides a kind of embodiment of pull-fork assembly 33, pull-fork assembly 33 includes being connected to
Shift fork 331 on push rod 324, the shift fork first 332 for shift fork 331 being connected to block disk 6, the push-and-pull campaign back and forth of push rod 324,
Drive shift fork 331 to move back and forth, then drive shift fork first 332, drive the push-and-pull of disk 6.
The utility model provides a kind of embodiment of clamping device 2, and clamping device 2 includes supporting table 21 and is connected to branch
Support the runner assembly 22 on platform 21, the clamp assembly 23 for clamping bearing 5.
As shown in Fig. 2 runner assembly 22 include motor 221, line slideway 222, the first sliding block 223, the second sliding block 224,
First screw mandrel 225, the second screw mandrel 226, the first nut 227 and the second nut 228, the first sliding block 223, the second sliding block 224 are sliding
Dynamic to be connected on line slideway 222, the first nut 227 is connected on the first sliding block 223, and the second nut 228 is connected to the second cunning
On block 224, motor 221, the first screw mandrel 225 and the second screw mandrel 226 are coaxially connected together, the first screw mandrel 225 and the second screw mandrel 226
It is oppositely oriented, motor 221 drives the first screw mandrel 225 and the second screw mandrel 226 to rotate simultaneously, the first screw mandrel 225 and the second screw mandrel
226 can be integrally formed, and the first screw mandrel 225 is threadedly coupled with the first nut 227, the second screw mandrel 226 and the second nut 228
Be threadedly coupled, motor 221 rotates, while drives the first screw mandrel 225 and the second screw mandrel 226 to rotate, because of the first screw mandrel 225 and
Second screw mandrel 226 it is oppositely oriented so that the first nut 227 and the second nut 228 move round about, that is to say, that make
First nut 227 and the move toward one another of the second nut 228, drive two movable stands 231 to move towards, press from both sides two V-clevises 232
Mandrel holds 5.
The utility model provides a kind of embodiment of clamp assembly 23, and clamp assembly 23 includes two clamping parts, should
Clamping part includes movable stand 231, is connected to clamp the V-clevis 232 of bearing 6 with movable stand 231, and V-clevis 232 is be hinged
On movable stand 231, by the move toward one another of two movable stands 231 two V-clevises 232 can be made to clamp bearing 5, because of hinge
It is connected on movable stand 231, being not easy, which skids off bearing 5, comes.
The utility model provides a kind of embodiment of measuring mechanism 7, and measuring mechanism 7 includes the control being connected on base 1
Device 71 processed, the electric pushrod 72 being connected with controller 71, the amesdial 73 being connected with electric pushrod 72, controller 71 controls electronic
Push rod 72 drives amesdial 73 to be moved on base 1, and when the detection of pressure sensor 4 reaches predetermined value, controller 71 controls electricity
Dynamic push rod 72 moves, and drives amesdial 73 to be close to disk 6, carries out reading respectively to two positions of its push-and-pull, calculate
The axial gap of bearing 5.
The utility model provides one embodiment, and motor 311 is fixedly and coaxially connected with worm screw 312, worm screw 312 and worm gear
313 engagements, worm gear 313 are coaxially fixed with cylindrical cam 323, and ball 328 rolls in the groove 327 of cylindrical cam 323, push rod
324 be L-shaped push rod, is connected between push rod 324 and ball 328 by bearing pin, and shift fork 331 slides in the pilot hole of push rod 324,
Spring is provided between shift fork 331 and push rod 324, is hinged between shift fork first 332 and shift fork 331, in use, shift fork first 331 is stuck in
The inside groove of disk 6, why the shift fork first 332 being hinged between one and shift fork 331 is set, in order to ensure shift fork first 332 and circle
The contact area of disk 6 is moderate larger, avoids damage to disk.
In clamping device 2, handwheel 221 and Bidirectional-screw（First screw mandrel 225 and the second screw mandrel 226 are integrally molded so as double
To screw mandrel）Coaxial fixed, Bidirectional-screw is two sections（First screw mandrel 225 and the second screw mandrel 226）, two sections of rotation direction is different, two-way
Fixing bearing is provided between screw mandrel and base 1, makes the Bidirectional-screw keep level, Bidirectional-screw and two differences with fixing bearing
The nut of rotation direction（First nut 227 and the second nut 228）Corresponding matching, the first nut 227, the second nut 228 and a shifting
Moving frame 231 is fixed, and movable stand 231 is be hinged with V-clevis 232, and V-clevis 232 can effectively clamp bearing, and V-clevis 232 is with moving
It is hinged between moving frame 231, thus is avoided that a contact, can more preferably clamp.
In use, disk 6 is caught in shift fork first 332, handwheel 221 is rotated, drives Bidirectional-screw（First screw mandrel 225 and
Two screw mandrels 226 are integrally molded so as Bidirectional-screw）Rotate, drive two nuts（First nut 227 and the second nut 228）It is opposite to move
It is dynamic, drive movable stand 231 and V-clevis 232 to clamp bearing 5, motor 221 stops operating, and electric pushrod 313 works, band moving teeth
Bar 322 moves, and drives sector gear 323 to rotate, and drives shift fork 331 to move, realize shift fork first 332 disk 6 is axially pulled or
The action that person promotes, the detected value of pressure sensor 4 reach certain value, and controller 311 controls electric pushrod 313 to promote, and promotes thousand
Point table 73 is adjacent to disk 6, the numerical value of amesdial 73 when writing down push and pull respectively, calculates the axial gap of bearing.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of device of the end-play of quick measurement bearing, it is characterised in that including base and be arranged on the base
Be used for clamp the clamping device of bearing, the push-pull mechanism for the progress push-and-pull of pair disk be connected with the coaxial bearing, a use
In to the disk, displacement carries out the measuring mechanism of reading during push-and-pull；Be provided with the push-pull mechanism for pair
The pressure sensor that its push-and-pull action power is detected.
A kind of 2. device of the end-play of quick measurement bearing according to claim 1, it is characterised in that the push-and-pull
Mechanism is including being used to provide the Power Component of transfer motion power, driving the transmission component of motion by the Power Component, for making
State the pull-fork assembly that disk moves.
A kind of 3. device of the end-play of quick measurement bearing according to claim 2, it is characterised in that the power
The worm gear that component includes motor, carries out coaxially connected worm screw with the motor, is connected with the worm engaging.
A kind of 4. device of the end-play of quick measurement bearing according to claim 3, it is characterised in that the transmission
Component includes support and sets guide rod on the bracket, the cylindrical cam coaxially connected with worm gear progress, push rod, institute
The ball that is provided with and can be rolled in the groove in the groove of cylindrical cam is stated, movement is slidably connected on the guide rod
Block, the ball are connected with the movable block by connecting rod, and the push rod is connected in the connecting rod.
A kind of 5. device of the end-play of quick measurement bearing according to claim 4, it is characterised in that the shift fork
Shift fork and the shift fork that component includes being connected on the push rod are connected to block the shift fork head of the disk.
A kind of 6. device of the end-play of quick measurement bearing according to claim 1, it is characterised in that the clamping
Mechanism includes the supporting table being connected on the base and the runner assembly being connected in the supporting table, for clamping the axle
The clamp assembly held.
A kind of 7. device of the end-play of quick measurement bearing according to claim 6, it is characterised in that the rotation
Component includes handwheel, line slideway, the first sliding block, the second sliding block, the first screw mandrel, the second screw mandrel, the first nut and the second nut,
First sliding block, the second sliding block are slidably connected on the line slideway, and first nut is connected to described first and slided
On block, second nut is connected on second sliding block, and the handwheel, the first screw mandrel and the second screw mandrel coaxially connect together
Connect, first screw mandrel is oppositely oriented with second screw mandrel, and first screw mandrel carries out screw thread company with first nut
Connect, second screw mandrel is threadedly coupled with second nut.
A kind of 8. device of the end-play of quick measurement bearing according to claim 7, it is characterised in that the clamping
Component includes two clamping parts, and the clamping part includes movable stand, is connected to clamp the bearing with the movable stand
V-clevis.
A kind of 9. device of the end-play of quick measurement bearing according to claim 8, it is characterised in that the V-arrangement
Chuck is hinged on the movable stand.
A kind of 10. device of the end-play of quick measurement bearing according to claim 1, it is characterised in that the survey
Measuring mechanism includes the controller being connected on the base, the electric pushrod being connected with the controller and the electric pushrod
The amesdial of connection, the controller control the electric pushrod to drive the amesdial to be moved on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721019326.4U CN207050639U (en) | 2017-08-15 | 2017-08-15 | A kind of device of the end-play of quick measurement bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721019326.4U CN207050639U (en) | 2017-08-15 | 2017-08-15 | A kind of device of the end-play of quick measurement bearing |
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| Publication Number | Publication Date |
|---|---|
| CN207050639U true CN207050639U (en) | 2018-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721019326.4U Expired - Fee Related CN207050639U (en) | 2017-08-15 | 2017-08-15 | A kind of device of the end-play of quick measurement bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN207050639U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238103A (en) * | 2018-11-12 | 2019-01-18 | 中国电子科技集团公司第二十研究所 | Motor bearings clearance test platform |
| CN109916359A (en) * | 2019-04-12 | 2019-06-21 | 江苏理工学院 | A kind of measuring device of bearing axial play |
| CN110986810A (en) * | 2019-12-23 | 2020-04-10 | 中车株洲电机有限公司 | Method and device for measuring axial assembly clearance of motor bearing |
| CN111076692A (en) * | 2019-12-19 | 2020-04-28 | 北京卫星制造厂有限公司 | High-precision shafting axial clearance calculation method for multistage planetary reduction mechanism |
| CN111307045A (en) * | 2019-12-24 | 2020-06-19 | 江门市安诺特炊具制造有限公司 | Method for detecting thickness of thermal spraying coating and detection equipment applying same |
| CN112113487A (en) * | 2020-09-08 | 2020-12-22 | 东风汽车集团有限公司 | EPS tubular column worm gear backlash detection device |
| CN112697090A (en) * | 2020-12-15 | 2021-04-23 | 中车株洲电机有限公司 | Device and method for measuring radial clearance of bearing after motor product assembly |
| CN114152174A (en) * | 2021-11-29 | 2022-03-08 | 六安滚动轴承有限公司 | Rolling bearing finished product detection device |
| CN114646286A (en) * | 2022-05-23 | 2022-06-21 | 潍坊埃锐制动系统有限公司 | Bearing clearance detection method and device for axle |
| CN114905243A (en) * | 2022-03-01 | 2022-08-16 | 芜湖卧龙家用电机有限公司 | Automatic assembling device for motor stator and bearing |
-
2017
- 2017-08-15 CN CN201721019326.4U patent/CN207050639U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238103A (en) * | 2018-11-12 | 2019-01-18 | 中国电子科技集团公司第二十研究所 | Motor bearings clearance test platform |
| CN109238103B (en) * | 2018-11-12 | 2024-02-23 | 中国电子科技集团公司第二十一研究所 | Motor bearing clearance test platform |
| CN109916359A (en) * | 2019-04-12 | 2019-06-21 | 江苏理工学院 | A kind of measuring device of bearing axial play |
| CN109916359B (en) * | 2019-04-12 | 2020-10-30 | 江苏理工学院 | Device for measuring axial clearance of bearing |
| CN111076692A (en) * | 2019-12-19 | 2020-04-28 | 北京卫星制造厂有限公司 | High-precision shafting axial clearance calculation method for multistage planetary reduction mechanism |
| CN110986810B (en) * | 2019-12-23 | 2021-09-14 | 中车株洲电机有限公司 | Method and device for measuring axial assembly clearance of motor bearing |
| CN110986810A (en) * | 2019-12-23 | 2020-04-10 | 中车株洲电机有限公司 | Method and device for measuring axial assembly clearance of motor bearing |
| CN111307045A (en) * | 2019-12-24 | 2020-06-19 | 江门市安诺特炊具制造有限公司 | Method for detecting thickness of thermal spraying coating and detection equipment applying same |
| CN112113487A (en) * | 2020-09-08 | 2020-12-22 | 东风汽车集团有限公司 | EPS tubular column worm gear backlash detection device |
| CN112697090A (en) * | 2020-12-15 | 2021-04-23 | 中车株洲电机有限公司 | Device and method for measuring radial clearance of bearing after motor product assembly |
| CN114152174A (en) * | 2021-11-29 | 2022-03-08 | 六安滚动轴承有限公司 | Rolling bearing finished product detection device |
| CN114152174B (en) * | 2021-11-29 | 2024-04-30 | 六安滚动轴承有限公司 | Rolling bearing finished product detection device |
| CN114905243A (en) * | 2022-03-01 | 2022-08-16 | 芜湖卧龙家用电机有限公司 | Automatic assembling device for motor stator and bearing |
| CN114646286A (en) * | 2022-05-23 | 2022-06-21 | 潍坊埃锐制动系统有限公司 | Bearing clearance detection method and device for axle |
| CN114646286B (en) * | 2022-05-23 | 2022-07-29 | 潍坊埃锐制动系统有限公司 | Bearing clearance detection method and device for axle |
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