CN109029998B - Joint bearing test device - Google Patents
Joint bearing test device Download PDFInfo
- Publication number
- CN109029998B CN109029998B CN201811093200.0A CN201811093200A CN109029998B CN 109029998 B CN109029998 B CN 109029998B CN 201811093200 A CN201811093200 A CN 201811093200A CN 109029998 B CN109029998 B CN 109029998B
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- Prior art keywords
- shaft sleeve
- sleeve
- mandrel
- right shaft
- hole
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- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a joint bearing test device, which comprises a joint bearing, a mandrel and a load; the method is characterized in that: the device also comprises a main rotating sleeve, a left shaft sleeve, a right shaft sleeve and a rolling bearing; the mandrel penetrates through an inner ring hole of the joint bearing, two ends of the mandrel are respectively sleeved on the inner sides of the left shaft sleeve and the right shaft sleeve, the left shaft sleeve and the right shaft sleeve are respectively sleeved in the main rotating sleeve, an axial screw hole is formed in the outer side of the left shaft sleeve or the right shaft sleeve, and a tensioning screw pushes the mandrel on the inner side of the left shaft sleeve or the right shaft sleeve through the screw hole; and two ends of the main rotating sleeve are respectively arranged on the test bed through the rolling bearings, and the load is loaded on the outer ring of the knuckle bearing. The invention provides high-rigidity support for the mandrel through transition of the main rotating sleeve and the left and right shaft sleeves, so that the loaded bending degree of the mandrel is minimized, the working condition is most similar to the shearing working condition only, and the service life of the mandrel is prolonged.
Description
Technical Field
The invention relates to a joint bearing test device.
Background
The conventional knuckle bearing life test device is shown in fig. 1, and comprises a test bearing 1', a mandrel 2', a shaft sleeve 3', a left rotating sleeve 4' and a right rotating sleeve 5', wherein the mandrel 2' is sleeved in an inner ring of the test bearing 1', two sides of the mandrel 2' are sleeved in the shaft sleeve 3', two ends of the shaft sleeve 3' are respectively arranged in the left rotating sleeve 4 'and the right rotating sleeve 5', and the left rotating sleeve 4 'and the right rotating sleeve 5' are respectively arranged on a test bed through accompanying test bearings 6 'and 7'. The device tests the life of the bearing by swinging the left-turn sleeve 4 'or the right-turn sleeve 5' and applying a load 8 'to the outer ring of the test bearing 1'. Because the life test of the knuckle bearing is a heavy-load low-speed swinging working condition, the device has the defects that the length of the mandrel 2 'is longer, the stress bending is serious, the lives of the accompanying test rolling bearings 6' and 7 'are low, and the test mandrel 2' is easy to break, and the situations that the lives of the accompanying test bearings and the mandrel are lower than those of the test bearings often occur in practical application.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a joint bearing test device.
The technical scheme adopted for solving the technical problems is as follows:
the joint bearing test device comprises a joint bearing, a mandrel and a load; the method is characterized in that: the device also comprises a main rotating sleeve, a left shaft sleeve, a right shaft sleeve and a rolling bearing; the mandrel penetrates through the inner ring hole of the joint bearing, the cross sections of the left shaft sleeve and the right shaft sleeve along the axial direction are respectively in an approximate H shape, the two sides of the left shaft sleeve and the right shaft sleeve are respectively provided with a mandrel hole and an adjusting hole, the two ends of the mandrel are respectively sleeved in the mandrel holes of the left shaft sleeve and the right shaft sleeve, the two sides of the main rotating sleeve are respectively provided with a shaft sleeve hole matched with the peripheral walls of the left shaft sleeve and the right shaft sleeve, the left shaft sleeve and the right shaft sleeve are respectively matched and connected in the shaft sleeve hole of the main rotating sleeve, the bottom wall of the adjusting hole of the left shaft sleeve or the right shaft sleeve is provided with an axial screw hole, and a tensioning screw pushes the mandrel at the inner side of the left shaft sleeve or the right shaft sleeve through the screw hole; and two ends of the main rotating sleeve are respectively arranged on the test bed through the rolling bearings, and the load is loaded on the outer ring of the knuckle bearing.
In another preferred embodiment, the bottom walls of the adjusting holes of the left shaft sleeve and the right shaft sleeve are respectively provided with the screw holes.
In another preferred embodiment, the shaft sleeve hole of the main rotating sleeve is an axial step hole, and the left shaft sleeve and the right shaft sleeve are respectively sleeved in the step hole.
In another preferred embodiment, the outer sides of the left and right bushings are detachably mounted on the outer sides of both ends of the spindle housing, respectively.
In another preferred embodiment, an adjustable distance is provided between the left or right sleeve and the main rotor.
In a further preferred embodiment, the rolling bearing carries at least part of the spindle.
In another preferred embodiment, the test bench further comprises two supporting seats, wherein the rolling bearings are respectively installed on the supporting seats, and the two supporting seats are installed on the test bench.
In another preferred embodiment, the left shaft sleeve and/or the right shaft sleeve is/are propped against the inner ring end face of the knuckle bearing.
The beneficial effects of the invention are as follows:
1. the main rotating sleeve, the left shaft sleeve and the right shaft sleeve are in transition to provide high-rigidity support for the mandrel, so that the loaded bending degree of the mandrel is minimized, the working condition is most similar to the shearing working condition only, and the service life of the mandrel is prolonged; the test-accompanying rolling bearing with larger specification can be selected, the service life of the test-accompanying rolling bearing is prolonged, and the replacement times are reduced; the main rotating sleeve shares the rotating torque of the mandrel, so that the service life of the mandrel is further prolonged; the small parts such as the mandrel, the left shaft sleeve, the right shaft sleeve and the like can be used for different model knuckle bearing tests, so that the universality is strong; the invention is convenient to be repeatedly disassembled and assembled.
2. The left shaft sleeve and the right shaft sleeve are respectively provided with a jacking screw, so that the position and the pretightening force of the mandrel can be finely adjusted, and the mandrel can be conveniently detached and torque can be conveniently transmitted.
3. The end face of the inner ring of the joint bearing can be tightly propped by the left shaft sleeve to transmit partial torque for driving the inner ring of the joint bearing to rotate.
4. Screw holes for disassembly are designed on flanges of the left shaft sleeve and the right shaft sleeve and are used for separating the left shaft sleeve from the right shaft sleeve and the main rotating sleeve, so that the disassembly is convenient.
The invention is described in further detail below with reference to the drawings and examples; however, the invention is not limited to the embodiment.
Drawings
Fig. 1 is a schematic cross-sectional structure of the prior art.
Fig. 2 is a schematic elevational cross-section of the present invention.
Fig. 3 is a schematic cross-sectional view in the direction A-A of fig. 2.
Detailed Description
1-3, the joint bearing test device of the invention comprises a joint bearing 1, a mandrel 2, a load 3, a main rotating sleeve 5, a left shaft sleeve 4, a right shaft sleeve 6 and a rolling bearing 7; the dabber 2 passes the inner race hole of joint bearing 1, left side axle sleeve 4 with right side axle sleeve 6 is approximately H type along axial cross section respectively, left side axle sleeve 4 with right side axle sleeve 6's both sides are spindle hole and regulation hole respectively, the both ends of dabber 2 cup joint respectively in the spindle hole of left side axle sleeve 4 and right axle sleeve 6, main rotating sleeve 5's both sides have respectively with left side axle sleeve 4 with right side axle sleeve 6's periphery wall looks adaptation axle sleeve hole, inboard, left side axle sleeve 4 and right axle sleeve 6 fit respectively connect in the axle sleeve hole of main rotating sleeve 5, in this embodiment, interference fit or little clearance fit are adopted between main rotating sleeve 5, left and right axle sleeve 4 and 6, the dabber 2. The bottom walls of the adjusting holes of the left shaft sleeve 4 and the right shaft sleeve 6 are respectively provided with axial screw holes, the tensioning screw 8 pushes the mandrel 2 at the inner side of the left shaft sleeve 4 or the right shaft sleeve 6 through the screw holes, and the position and the pre-tightening force are finely adjusted through the pushing screw 8; the two ends of the main rotor 5 are respectively mounted on a test stand 9 through the rolling bearings 7, and in this embodiment, the rolling bearings 7 at least bear part of the spindle 2. The load is applied to the outer ring of the knuckle bearing 1 through the loading sleeve 10. In this embodiment, the main rotor 5 is supported by two supporting seats 11, and the rolling bearing 7 is installed between the supporting seats 11 and the main rotor 5, so that the wear resistance is reduced and the wear life is prolonged.
The shaft sleeve hole of the main rotating sleeve 5 is an axial step hole, and the left shaft sleeve 4 and the right shaft sleeve 6 are respectively sleeved in the step holes. The left shaft sleeve 4 and the right shaft sleeve 6 are tightly propped against the end face of the inner ring of the joint bearing 1.
The outer sides of the left shaft sleeve 4 and the right shaft sleeve 6 are provided with flanges, through holes, and the left shaft sleeve 4 and the right shaft sleeve 6 are respectively detachably arranged on the outer sides of the two ends of the main rotating sleeve 5 through bolts 12. And a certain gap is reserved after the left shaft sleeve 4 is locked, and the pressing force of the shaft sleeve on the end face of the test piece can be controlled by adjusting the locking force of the bolt. The right shaft sleeve 6 is locked on the main rotating sleeve 5 through bolts.
In the test, the swing mechanism is connected with the right shaft sleeve 6 to drive the right shaft sleeve 6 to rotate; the right sleeve 6 transmits torque to the main rotor 5 and the spindle 2, the main rotor 5 transmits part of the torque to the left sleeve 4 at the same time, and the left sleeve 4 transmits part of the torque to the spindle 2. The loading sleeve simultaneously applies load to the outer diameter of the test knuckle bearing 1 during swinging, and the load is transferred: loading sleeve 10, test joint bearing 1, mandrel 2, left and right shaft sleeves 4 and 6, main rotating sleeve 5, rolling bearing 7, supporting seat 11 and test bed 9.
The above embodiment is only used for further illustrating a joint bearing test device of the present invention, but the present invention is not limited to the embodiment, and any simple modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present invention falls within the protection scope of the technical solution of the present invention.
Claims (8)
1. The joint bearing test device comprises a joint bearing, a mandrel and a load; the method is characterized in that: the device also comprises a main rotating sleeve, a left shaft sleeve, a right shaft sleeve and a rolling bearing; the mandrel passes through the inner ring hole of the joint bearing, the cross sections of the left shaft sleeve and the right shaft sleeve along the axial direction are respectively in an approximate H shape, the two sides of the left shaft sleeve and the right shaft sleeve are respectively provided with a mandrel hole and an adjusting hole, the two ends of the mandrel are respectively sleeved in the mandrel holes of the left shaft sleeve and the right shaft sleeve, the two sides of the main rotating sleeve are respectively provided with a shaft sleeve hole matched with the peripheral walls of the left shaft sleeve and the right shaft sleeve, the left shaft sleeve and the right shaft sleeve are respectively matched and connected in the shaft sleeve holes of the main rotating sleeve,
the bottom wall of the adjusting hole of the left shaft sleeve or the right shaft sleeve is provided with an axial screw hole, and the tensioning screw pushes the mandrel at the inner side of the left shaft sleeve or the right shaft sleeve through the screw hole; and two ends of the main rotating sleeve are respectively arranged on the test bed through the rolling bearings, and the load is loaded on the outer ring of the knuckle bearing.
2. The knuckle bearing test device of claim 1, wherein: the bottom walls of the adjusting holes of the left shaft sleeve and the right shaft sleeve are respectively provided with the screw holes.
3. The knuckle bearing test device of claim 1, wherein: the shaft sleeve hole of the main rotating sleeve is an axial step hole, and the left shaft sleeve and the right shaft sleeve are respectively sleeved in the step hole.
4. The knuckle bearing test device of claim 1, wherein: the outer sides of the left shaft sleeve and the right shaft sleeve are respectively detachably arranged at the outer sides of the two ends of the main shaft sleeve.
5. The knuckle bearing test device of claim 4, wherein: an adjustable distance is arranged between the left shaft sleeve or the right shaft sleeve and the main rotating sleeve.
6. The knuckle bearing test device of claim 1, wherein: the rolling bearing carries at least part of the spindle.
7. The knuckle bearing test device of claim 1, wherein: the test bed also comprises two supporting seats, wherein the rolling bearings are respectively arranged on the supporting seats, and the two supporting seats are arranged on the test bed.
8. The knuckle bearing test device of claim 1, wherein: and the left shaft sleeve and/or the right shaft sleeve tightly props against the end face of the inner ring of the joint bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093200.0A CN109029998B (en) | 2018-09-19 | 2018-09-19 | Joint bearing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093200.0A CN109029998B (en) | 2018-09-19 | 2018-09-19 | Joint bearing test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109029998A CN109029998A (en) | 2018-12-18 |
| CN109029998B true CN109029998B (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811093200.0A Active CN109029998B (en) | 2018-09-19 | 2018-09-19 | Joint bearing test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109029998B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031196B (en) * | 2019-04-18 | 2020-10-02 | 燕山大学 | Interference fitting surface fine motion damage efficient testing device |
| CN112729833B (en) * | 2020-12-31 | 2023-05-16 | 沈阳建筑大学 | Broken shaft type bearing test system |
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| CN102221462A (en) * | 2011-06-13 | 2011-10-19 | 长春机械科学研究院有限公司 | Test detection device for joint bearing |
| CN203324012U (en) * | 2013-05-28 | 2013-12-04 | 常州大学 | Rolling bearing detection and fault diagnosis device |
| CN103453021A (en) * | 2013-09-13 | 2013-12-18 | 西南石油大学 | Textured roller bit sliding bearing and test method of unit tribological property of texture roller bit sliding bearing |
| CN103994890A (en) * | 2014-06-06 | 2014-08-20 | 中国航空综合技术研究所 | Swing wear life test clamp of joint bearing |
| CN104568407A (en) * | 2014-12-31 | 2015-04-29 | 柳州市金元机械制造有限公司 | Flexible shaft comprehensive test experiment table |
| CN204988727U (en) * | 2015-08-10 | 2016-01-20 | 上海凯研机械设备有限公司 | Flexible shaft test platform |
| CN105841962A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Novel joint bearing wearing service lifetime testing clamp |
| CN205748914U (en) * | 2016-05-17 | 2016-11-30 | 慈兴集团有限公司 | Bearing rotary torsional moment test device |
| DE102015213618A1 (en) * | 2015-07-20 | 2017-01-26 | Aktiebolaget Skf | Test bench for rolling bearings |
| CN208999094U (en) * | 2018-09-19 | 2019-06-18 | 福建龙溪轴承(集团)股份有限公司 | A kind of oscillating bearing experimental rig |
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|---|---|---|---|---|
| CN103267613B (en) * | 2013-05-06 | 2015-08-19 | 南京林业大学 | A kind of mechanical sealing performance tester |
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2018
- 2018-09-19 CN CN201811093200.0A patent/CN109029998B/en active Active
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|---|---|---|---|---|
| CN102221462A (en) * | 2011-06-13 | 2011-10-19 | 长春机械科学研究院有限公司 | Test detection device for joint bearing |
| CN203324012U (en) * | 2013-05-28 | 2013-12-04 | 常州大学 | Rolling bearing detection and fault diagnosis device |
| CN103453021A (en) * | 2013-09-13 | 2013-12-18 | 西南石油大学 | Textured roller bit sliding bearing and test method of unit tribological property of texture roller bit sliding bearing |
| CN103994890A (en) * | 2014-06-06 | 2014-08-20 | 中国航空综合技术研究所 | Swing wear life test clamp of joint bearing |
| CN104568407A (en) * | 2014-12-31 | 2015-04-29 | 柳州市金元机械制造有限公司 | Flexible shaft comprehensive test experiment table |
| DE102015213618A1 (en) * | 2015-07-20 | 2017-01-26 | Aktiebolaget Skf | Test bench for rolling bearings |
| CN204988727U (en) * | 2015-08-10 | 2016-01-20 | 上海凯研机械设备有限公司 | Flexible shaft test platform |
| CN105841962A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Novel joint bearing wearing service lifetime testing clamp |
| CN205748914U (en) * | 2016-05-17 | 2016-11-30 | 慈兴集团有限公司 | Bearing rotary torsional moment test device |
| CN208999094U (en) * | 2018-09-19 | 2019-06-18 | 福建龙溪轴承(集团)股份有限公司 | A kind of oscillating bearing experimental rig |
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| Publication number | Publication date |
|---|---|
| CN109029998A (en) | 2018-12-18 |
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