CN210221495U - Bearing life testing device - Google Patents
Bearing life testing device Download PDFInfo
- Publication number
- CN210221495U CN210221495U CN201921341705.4U CN201921341705U CN210221495U CN 210221495 U CN210221495 U CN 210221495U CN 201921341705 U CN201921341705 U CN 201921341705U CN 210221495 U CN210221495 U CN 210221495U
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- Prior art keywords
- bearing
- base
- workbench
- rotating disc
- shaft
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 description 10
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a bearing life testing device, including the bracket component, be provided with the workstation on the bracket component, be provided with the test assembly that the multiunit is used for fixing the bearing that awaits measuring on the workstation, the test assembly can be along the radial movement of workstation, the test assembly includes the base, a fixing base for fixing the bearing that awaits measuring, the pressure device who exerts pressure to the bearing that awaits measuring and set up the pressure sensor between pressure device and fixing base, be provided with cross roller guide rail between fixing base and the base, be provided with the fixed plate that is used for fixed base and workstation on the base, be provided with the rotary disk that cooperatees with the bearing that awaits measuring and be used for driving the rotary disk along its axial pivoted drive arrangement below the workstation; during detection, the upper surface of the rotating disc is abutted against the peripheral surface of the bearing to be detected, and the bearing to be detected rotates along with the rotating disc. The utility model discloses a bearing life-span testing arrangement not only can detect the bearing of the different rotational speeds of multiunit simultaneously, and detects that data is more accurate.
Description
Technical Field
The utility model relates to a bearing detects technical field, especially relates to a bearing life-span testing arrangement.
Background
In the prior art, a bearing is an indispensable important part in a mechanical product. The bearing is used as a key part, if damage occurs in the using process, serious consequences are caused, and therefore, the maintenance period needs to be determined according to the service life of the bearing.
In the prior art, in order to evaluate the service life of a bearing in a product, the bearing is usually mounted on the product for destructive test, the method can accurately test the service life of the bearing, but the cost is high, the period is long, and the operation is complex. In addition, there is a testing device for detecting the service life of a bearing in the prior art, but when the outer diameter changes due to the abrasion of the bearing, the response of a testing mechanism is insensitive, so that the testing data is not accurate enough, and when the rotation speed of a driving motor is fixed, the linear speed of the bearing cannot be adjusted, so that the bearings with different rotation speeds cannot be detected simultaneously.
Therefore, it is necessary to develop a bearing life testing device which can simultaneously detect bearings with different rotation speeds and has more accurate detection data.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a bearing life testing device, it can detect the bearing of the different rotational speeds of multiunit simultaneously, and it is more accurate to detect data.
The utility model discloses a following technical scheme realizes:
a bearing life testing device comprises a support assembly, wherein a workbench is arranged on the support assembly, a plurality of groups of testing assemblies for fixing a bearing to be tested are arranged on the workbench, and can move along the radial direction of the workbench; during detection, the upper surface of the rotating disc is abutted against the peripheral surface of the bearing to be detected, and the bearing to be detected rotates along with the rotating disc.
Further, the workbench is coaxial with the rotating disc, the bearing to be tested is located below the workbench, and the axis of the bearing to be tested is arranged along the horizontal direction.
Furthermore, the pressurizing device comprises a pressing plate sleeve, a guide shaft in sliding connection with the pressing plate sleeve, an elastic body sleeved outside the guide shaft, and a force application screw for driving the pressing plate sleeve to slide relative to the guide shaft, wherein the force application screw is arranged on the base, and the guide shaft is connected with the pressure sensor.
Furthermore, a gland shaft is arranged between the force application screw and the gland sleeve, a first bearing is arranged between the gland shaft and the gland sleeve, and the first bearing is a thrust ball bearing.
Further, the gland shaft is provided with a first threaded hole matched with the force application screw, and the base is provided with a second threaded hole matched with the force application screw.
Furthermore, one end of the elastic body is connected with the pressure plate sleeve, the other end of the elastic body is connected with the guide shaft, and the elastic body is a compression spring.
Further, the driving device comprises a driving motor arranged on the bracket component, a driving shaft matched with the rotating disk and a coupling connecting the driving motor and the driving shaft.
Furthermore, the support assembly is provided with a partition plate used for fixing the workbench, the partition plate is provided with a through hole matched with the driving shaft, the driving shaft is sleeved with a bearing assembly above the partition plate, and the partition plate is provided with a bearing seat and an end cover which are used for axially limiting the bearing assembly.
Further, the bearing assembly comprises a second bearing and a third bearing, the second bearing is arranged above the third bearing, the second bearing is a tapered roller bearing, and the third bearing is a deep groove ball bearing.
Further, the driving shaft is fixedly connected with the rotating disc through a connecting plate and a sealing cover.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the technical means that the workbench is provided with a plurality of groups of test assemblies for fixing the bearing to be tested, the test assemblies can move along the radial direction of the workbench, the workbench is provided with a plurality of groups of sliding chutes in sliding fit with the base, the base is provided with a fixing plate for fixing the base and the workbench, and the lower part of the workbench is provided with a rotating disc matched with the bearing to be tested and a driving device for driving the rotating disc to rotate along the axial direction of the rotating disc, so that the upper surface of the rotating disc is abutted against the peripheral surface of the bearing to be tested during detection, the bearing to be tested rotates along with the rotating disc, and the purpose of simultaneously detecting a plurality of groups of bearings to be tested with different rotating speeds can be realized by adjusting the position of the test assemblies relative to; through setting up the base, a fixing base for fixing the bearing that awaits measuring, apply pressure's pressure device and set up the pressure sensor between pressure device and fixing base to the bearing that awaits measuring, be provided with the technical means of cross roller guide rail between fixing base and the base, make when the bearing that awaits measuring wearing and tearing, can be accurate with the unsteady and the external diameter change transmission of the bearing that awaits measuring for pressure sensor, make the state of whole testing arrangement real-time supervision bearing that awaits measuring, and reflect on pressure sensor, the accuracy of test data has been improved.
Drawings
Fig. 1 is a perspective view of a bearing life testing device according to an embodiment of the present invention;
fig. 2 is a front view of a bearing life testing device according to an embodiment of the present invention;
fig. 3 is a top view of the bearing life testing apparatus according to the embodiment of the present invention;
FIG. 4 is a view of the cross-sectional view AA in FIG. 3 rotated 135 clockwise;
fig. 5 is a perspective view of a transmission portion according to an embodiment of the present invention;
FIG. 6 is a front view of the transmission portion of FIG. 5;
FIG. 7 is a top view of the transmission portion of FIG. 5;
fig. 8 is a view of the cross-section BB in fig. 7 rotated 135 ° clockwise.
In the figure: 10. a bracket assembly; 11. a work table; 111. a chute; 12. a partition plate; 121. a through hole; 20. a base; 21. a fixed seat; 22. a fixing plate; 23. a cross roller guide rail; 30. a pressurizing device; 31. a pressing plate sleeve; 32. a guide shaft; 33. an elastomer; 34. a force application screw; 35. a gland shaft; 36. a first bearing; 40. a pressure sensor; 50. rotating the disc; 60. a drive device; 61. a drive motor; 62. a drive shaft; 63. a coupling; 64. bearing seats, 65 and end covers; 66. a second bearing, 67, a third bearing; 70. a connecting plate; 80. sealing the cover; 90. and (5) bearing to be tested.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
The transmission part in fig. 5-7 refers to the part of the bearing life testing device without the bracket assembly, the workbench and the partition plate.
The bearing life testing device shown in fig. 1-8 comprises a bracket assembly 10, a worktable 11 is arranged on the bracket assembly 10, a plurality of groups of testing assemblies (not shown) for fixing a bearing 90 to be tested are arranged on the worktable 11, the testing assemblies can move along the radial direction of the worktable 11, each testing assembly comprises a base 20 arranged on the worktable 11, a fixing seat 21 arranged on the base 20 for fixing the bearing 90 to be tested, the device comprises a pressurizing device 30 for applying pressure to a bearing 90 to be tested and a pressure sensor 40 arranged between the pressurizing device 30 and a fixed seat 21, wherein a crossed roller guide rail 23 is arranged between the fixed seat 21 and a base 20, a plurality of groups of sliding grooves 111 in sliding fit with the base 20 are arranged on a workbench 11, a fixing plate 22 for fixing the base 20 and the workbench 11 is arranged on the base 20, and a rotating disc 50 matched with the bearing 90 to be tested and a driving device 60 for driving the rotating disc 50 to rotate along the axial direction are arranged below the workbench 11; during detection, the upper surface of the rotating disk 50 abuts against the outer peripheral surface of the bearing to be detected 90, and the bearing to be detected 90 rotates along with the rotating disk 50.
The technical means that the workbench 11 is arranged on the bracket assembly 10, a plurality of groups of testing assemblies for fixing the bearing 90 to be tested are arranged on the workbench 11, the testing assemblies can move along the radial direction of the workbench 11, a plurality of groups of sliding grooves 111 in sliding fit with the base 20 are arranged on the workbench 11, the base 20 is provided with a fixing plate 22 for fixing the base 20 and the workbench 11, the rotary disc 50 matched with the bearing 90 to be tested and the driving device 60 for driving the rotary disc 50 to rotate along the axial direction are arranged below the workbench 11, so that the upper surface of the rotary disc 50 is in contact with the peripheral surface of the bearing 90 to be tested during detection, the bearing 90 to be tested rotates along with the rotary disc 50, and the purpose of simultaneously detecting a plurality of groups of bearings 90 to be tested with different rotating speeds can be realized by adjusting the position of the testing assemblies relative; through setting up base 20, a fixing base 21 for fixing bearing 90 that awaits measuring, pressure device 30 and set up the pressure sensor 40 between pressure device 30 and fixing base 21 of exerting pressure to bearing 90 that awaits measuring, be provided with the technical means of cross roller guide rail 23 between fixing base 21 and the base 20, make when bearing 90 that awaits measuring wearing and tearing, can be accurate with bearing 90 that awaits measuring's unsteady and the external diameter change transfer for pressure sensor 40, make the state of whole testing arrangement real-time supervision bearing 90 that awaits measuring, and reflect on pressure sensor 40, the accuracy of test data has been improved.
The cross roller guide 23 is a low-friction high-precision linear motion system. Compared with a linear guide rail, the crossed roller guide rail 23 has the advantages of small size, small vibration, high linearity, stable multi-directional stress and the like. Through setting up crossed roller guide rail 23 for when bearing 90 that awaits measuring wearing and tearing, fixing base 21 can move down thereupon, makes bearing 90 that awaits measuring contact with rotary disk 50 all the time, gives pressure sensor 40 with bearing 90 that awaits measuring's unsteady and external diameter change transfer simultaneously, makes whole testing arrangement real-time supervision bearing 90 that awaits measuring state, and embodies on pressure sensor 40, has improved the accuracy of test data. In addition, the relative positions of the fixed seat 21 and the base 20 can be adjusted through the crossed roller guide rail 23, so that the detection of the bearings with different outer diameters can be realized.
In a preferred embodiment, the table 11 is disposed coaxially with the rotary plate 50, the bearing to be measured 90 is located below the table 11, and the axis of the bearing to be measured 90 is disposed in a horizontal direction. Through the position of the relative workstation 11 of adjustment test subassembly, and then the radial position of adjustment test subassembly and rotary disk 50, under the fixed circumstances of drive arrangement 60 rotational speed, can realize the adjustment of the rotational speed of bearing 90 that awaits measuring, and then can detect the bearing 90 that awaits measuring of the different rotational speeds of multiunit simultaneously, can only rely on driving motor 61 to adjust the rotational speed of bearing 90 that awaits measuring among the prior art, and can only test the bearing 90 that awaits measuring of the same rotational speed simultaneously, this testing arrangement's test range is wider, when drive arrangement 60 rotational speed reaches the limit, the rotational speed of bearing 90 that awaits measuring can further improve through adjusting its position.
In a preferred embodiment, the pressing device 30 includes a platen sleeve 31, a guide shaft 32 slidably connected to the platen sleeve 31, an elastic body 33 fitted around the guide shaft 32, and an urging screw 34 for driving the platen sleeve 31 to slide relative to the guide shaft 32, the urging screw 34 is provided on the base 20, and the guide shaft 32 is connected to the pressure sensor 40. The pressure plate sleeve 31 is driven to slide relative to the guide shaft 32 by the force application screw 34, and pressure is applied to the guide shaft 32 through the elastic body 33, and then the pressure is transmitted to the fixed seat 21 and the bearing to be measured 90 through the pressure sensor 40. Preferably, the pressure sensor 40 has a display screen, and can display the pressure value in real time.
In a preferred embodiment, a gland shaft 35 is provided between the biasing screw 34 and the pressure plate sleeve 31, a first bearing 36 is provided between the gland shaft 35 and the pressure plate sleeve 31, and the first bearing 36 is a thrust ball bearing. The first bearing 36 is arranged to ensure that the force application screw 34 does not generate torque to the whole testing device while applying pressure, thereby ensuring the stability of the whole testing device. Preferably, the cover shaft 35 is provided with a first screw hole (not shown) to be fitted with the biasing screw 34, and the base 20 is provided with a second screw hole (not shown) to be fitted with the biasing screw 34. The force application screw 34 is fixedly connected with the gland shaft 35 through a first threaded hole, and moves downwards relative to the base 20 through a second threaded hole in a spiral mode to apply pressure downwards, so that the structure is simple, and the operation is convenient.
In a preferred embodiment, one end of the elastic body 33 is connected to the pressure plate sleeve 31, the other end of the elastic body 33 is connected to the guide shaft 32, and the elastic body 33 is a compression spring. The compression spring can bear axial pressure, when the force application screw 34 moves downwards, the pressing plate sleeve 31 is driven to move downwards to compress the elastic body 33, the elastic body 33 drives the guide shaft 32 to move downwards, and the pressure is transmitted to the fixed seat 21 and the bearing 90 to be tested through the pressure sensor 40.
In a preferred embodiment, the driving device 60 includes a driving motor 61 provided on the carriage assembly 10, a driving shaft 62 engaged with the rotating disk 50, and a coupling 63 connecting the driving motor 61 and the driving shaft 62. The bracket assembly 10 is provided with a partition plate 12 for fixing the working table 11, the partition plate 12 is provided with a through hole 121 matched with the driving shaft 62, the driving shaft 62 is sleeved with a bearing assembly (not shown) above the partition plate 12, and the partition plate 12 is provided with a bearing seat 64 and an end cover 65 for axially limiting the bearing assembly. The lower portion of the drive shaft 62 is provided with spline grooves (not shown), and the output shaft of the coupling 63 is provided with splines (not shown) that fit into the spline grooves. The spline and the spline groove are matched with each other, so that the shaft coupling 63 and the driving shaft 62 are more convenient to disassemble and assemble, the spline groove of the driving shaft 62 is directly inserted into the spline of the shaft coupling 63, the driving motor 61 drives the driving shaft 62 to rotate through the shaft coupling 63, and then the rotating disc 50 is driven to rotate.
In a preferred embodiment, the bearing assembly includes a second bearing 66 and a third bearing 67, the second bearing 66 is disposed above the third bearing 67, the second bearing 66 is a tapered roller bearing, and the third bearing 67 is a deep groove ball bearing. The arrangement of the tapered roller bearing and the deep groove ball bearing can limit the radial swing, and the stability of the rotating disc 50 in operation is ensured. Preferably, the driving shaft 62 is fixedly connected with the rotating disc 50 through the connecting plate 70 and the cover 80.
The utility model discloses bearing life-span testing arrangement has following advantage:
1. the bearing to be tested 90 with different outer diameters and different rotating speeds can be simultaneously detected;
2. the adjustment of the rotating speed is realized by adjusting the radial position of the bearing 90 to be tested relative to the rotating disc 50, and when the rotating speed of the motor reaches the limit, the rotating speed of the bearing 90 to be tested can be further increased;
3. by adding the crossed roller guide rail 23, the floating and the outer diameter change of the bearing 90 to be tested can be accurately transmitted to the pressure sensor 40, so that the whole testing device monitors the state of the bearing 90 to be tested in real time and is embodied on the pressure sensor 40;
4. the thrust ball bearing is added below the force application screw 34, so that the whole testing device is not subjected to torque when pressure is applied, and the stability of the whole testing device is ensured.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a bearing life-span testing arrangement, includes bracket assembly, its characterized in that: the bracket component is provided with a workbench, the workbench is provided with a plurality of groups of testing components for fixing the bearing to be tested, the test component can move along the radial direction of the workbench, the test component comprises a base arranged on the workbench, a fixed seat arranged on the base and used for fixing a bearing to be tested, a pressurizing device for applying pressure to the bearing to be tested and a pressure sensor arranged between the pressurizing device and the fixed seat, a cross roller guide rail is arranged between the fixed seat and the base, a plurality of groups of sliding chutes which are in sliding fit with the base are arranged on the workbench, the base is provided with a fixing plate for fixing the base and the workbench, and a rotating disc matched with a bearing to be tested and a driving device for driving the rotating disc to rotate along the axial direction of the rotating disc are arranged below the workbench; during detection, the upper surface of the rotating disc is abutted against the peripheral surface of the bearing to be detected, and the bearing to be detected rotates along with the rotating disc.
2. The bearing life test apparatus according to claim 1, wherein: the workbench and the rotating disc are coaxially arranged, the bearing to be tested is located below the workbench, and the axis of the bearing to be tested is arranged along the horizontal direction.
3. The bearing life test apparatus according to claim 1, wherein: the pressurizing device comprises a pressing plate sleeve, a guide shaft in sliding connection with the pressing plate sleeve, an elastic body sleeved outside the guide shaft and a force application screw used for driving the pressing plate sleeve to slide relative to the guide shaft, the force application screw is arranged on the base, and the guide shaft is connected with the pressure sensor.
4. A bearing life test apparatus according to claim 3, wherein: a gland shaft is arranged between the force application screw and the pressure plate sleeve, a first bearing is arranged between the gland shaft and the pressure plate sleeve, and the first bearing is a thrust ball bearing.
5. The bearing life test apparatus according to claim 4, wherein: the gland shaft is provided with a first threaded hole matched with the force application screw, and the base is provided with a second threaded hole matched with the force application screw.
6. A bearing life test apparatus according to claim 3, wherein: one end of the elastic body is connected with the pressure plate sleeve, the other end of the elastic body is connected with the guide shaft, and the elastic body is a compression spring.
7. The bearing life test apparatus according to claim 1, wherein: the driving device comprises a driving motor arranged on the bracket component, a driving shaft matched with the rotating disc and a coupling connected with the driving motor and the driving shaft.
8. The bearing life test apparatus according to claim 7, wherein: be provided with on the bracket component and be used for fixing the baffle of workstation, be provided with on the baffle with drive shaft matched with through-hole, the drive shaft is in the top cover of baffle is equipped with bearing assembly, it is right to be provided with on the baffle bearing assembly carries out axial spacing bearing frame and end cover.
9. The bearing life test apparatus according to claim 8, wherein: the bearing assembly comprises a second bearing and a third bearing, the second bearing is arranged above the third bearing, the second bearing is a tapered roller bearing, and the third bearing is a deep groove ball bearing.
10. The bearing life test apparatus according to claim 8, wherein: the driving shaft is fixedly connected with the rotating disc through a connecting plate and a sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921341705.4U CN210221495U (en) | 2019-08-19 | 2019-08-19 | Bearing life testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921341705.4U CN210221495U (en) | 2019-08-19 | 2019-08-19 | Bearing life testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210221495U true CN210221495U (en) | 2020-03-31 |
Family
ID=69918714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921341705.4U Expired - Fee Related CN210221495U (en) | 2019-08-19 | 2019-08-19 | Bearing life testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210221495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333075A (en) * | 2019-08-19 | 2019-10-15 | 深圳盛世电梯有限公司 | A kind of bearing life test device |
| CN111855206A (en) * | 2020-08-15 | 2020-10-30 | 温岭市微米自动化设备有限公司 | Bearing fatigue detection equipment and detection method thereof |
-
2019
- 2019-08-19 CN CN201921341705.4U patent/CN210221495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333075A (en) * | 2019-08-19 | 2019-10-15 | 深圳盛世电梯有限公司 | A kind of bearing life test device |
| CN111855206A (en) * | 2020-08-15 | 2020-10-30 | 温岭市微米自动化设备有限公司 | Bearing fatigue detection equipment and detection method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |