CN116296379A - Bearing dynamic and static load friction torque measurement testing machine - Google Patents
Bearing dynamic and static load friction torque measurement testing machine Download PDFInfo
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- CN116296379A CN116296379A CN202211650921.3A CN202211650921A CN116296379A CN 116296379 A CN116296379 A CN 116296379A CN 202211650921 A CN202211650921 A CN 202211650921A CN 116296379 A CN116296379 A CN 116296379A
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000003068 static effect Effects 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000002706 hydrostatic effect Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
The invention provides a dynamic and static load friction torque measurement testing machine for a bearing, which comprises a frame, wherein a clamp assembly for positioning and assembling the bearing to be tested, a bearing rotating assembly and a torque measurement assembly which are arranged on two sides of the clamp assembly, and an axial load unit and a radial load unit which are respectively used for increasing the axial load and the radial load of the bearing to be tested are arranged on the frame.
Description
Technical Field
The invention relates to the technical field of bearing test equipment, in particular to a dynamic and static load friction torque measuring test machine for a bearing.
Background
Bearing friction resistance is an important index affecting bearing life and is also an important factor affecting reliability, accuracy and safety of bearing related systems. Bearings are of relevance for applications in advanced technology and civil facilities, such as aircraft landing gear bearings, gyroscope bearings, satellite antenna bearings, high-speed rail bearings, automotive bearings, etc.
The existing bearing life testing machine can only conduct endurance life test on the bearing under a set environment, and the influence of factors such as load, unbalanced load and rotating speed on life test data is considered, but the influence of bearing torque change on life test is not comprehensively considered. Based on this, there is a need to develop more comprehensive test detection equipment for more comprehensive data support for bearing life testing.
Disclosure of Invention
Aiming at the problems, the invention provides a dynamic and static load friction torque measuring tester for a bearing.
The specific technical scheme is as follows:
the friction torque measurement testing machine for the dynamic and static loads of the bearing comprises a frame and is characterized in that a clamp assembly for positioning and assembling the bearing to be tested, a bearing rotating assembly and a torque measurement assembly which are arranged on two sides of the clamp assembly, and an axial load unit and a radial load unit which are respectively used for increasing the axial load and the radial load of the bearing to be tested are arranged on the frame.
The dynamic and static load friction torque measuring testing machine for the bearing comprises an outer frame, an outer chuck and an inner chuck, wherein the outer chuck and the inner chuck are arranged in the outer frame, the outer chuck and the inner chuck are used for clamping a bearing to be tested, the two horizontal sides of the outer chuck are in sliding fit with the outer frame up and down, and the inner chuck and the outer chuck are coaxially arranged;
the bearing rotating assembly comprises a rotating motor and a rotating main shaft, the rotating motor is fixedly arranged on a frame, a transmission shaft of the rotating motor is connected with the rotating main shaft through a universal joint, the rotating main shaft is fixedly connected with an outer chuck and is horizontally and coaxially arranged, the torque measuring assembly comprises a torque transmission shaft, a hydrostatic bearing box and a torque measuring unit, the hydrostatic bearing box and the torque measuring unit are fixedly arranged on the frame, one end of the torque transmission shaft is fixedly connected with an inner chuck, the other end of the torque transmission shaft is connected with the torque measuring unit, and the middle of the torque transmission shaft penetrates through the hydrostatic bearing box.
The dynamic and static load friction torque measuring testing machine for the bearing is characterized in that the torque measuring unit is a torque detector.
The dynamic and static load friction torque measuring testing machine for the bearing is characterized in that the rotating motor is a variable frequency motor.
The bearing dynamic and static load friction torque measurement testing machine is characterized in that sliding plates are arranged on two horizontal sides of the outer clamping head, sliding grooves are formed in two horizontal sides of the outer frame, the sliding plates are in clearance sliding fit with the sliding grooves, the outer clamping head and the outer frame are in sliding fit through the sliding plates and the sliding grooves, the outer end of the sliding plate is connected with a clamping block through a fastening knob, and the clamping block is screwed through the fastening knob, so that the outer clamping head and the outer frame are connected into a whole.
The dynamic and static load friction torque measuring testing machine for the bearing is characterized in that a sliding rod is arranged at the lower end of the outer frame, and a sliding seat in sliding fit with the sliding rod is correspondingly arranged at the lower end of the outer frame;
the axial load unit comprises a first hinge shaft, a first damper, a first load sensor, an axial actuator and a lifting device, wherein the first hinge shaft, the first damper, the first load sensor and the axial actuator are sequentially and fixedly connected, one end of the first hinge shaft is hinged with the sliding seat, and the axial actuator is hinged on a lifting seat of the lifting device.
The bearing dynamic and static load friction torque measurement testing machine comprises a radial load unit, wherein the radial load unit comprises a second hinge shaft, a second damper, a second load sensor, a radial actuator and a translation device, the second hinge shaft, the second damper, the second load sensor, the radial actuator and the translation device are sequentially and fixedly connected, one end of the second hinge shaft is hinged with a sliding seat, and the radial actuator is hinged on a translation seat of the translation device.
The bearing dynamic and static load friction torque measurement testing machine comprises a radial load unit, wherein the radial load unit comprises a second hinge shaft, a second damper, a second load sensor, a radial actuator and a translation device, the second hinge shaft, the second damper and the second load sensor are sequentially and fixedly connected, one end of the second hinge shaft is hinged with a sliding seat, a translation seat of the translation device is provided with a hinge triangular piece, three hinge positions are arranged on the hinge triangular piece and are respectively located at three corners of the hinge triangular piece, the hinge triangular piece is hinged with a translation seat of the translation device, the second load sensor is hinged with the hinge triangular piece through a connecting rod, one end of the radial actuator is hinged with a bracket in a rack, and the working end of the radial actuator is hinged with the hinge triangular piece.
The dynamic and static load friction torque measuring testing machine for the bearing is characterized in that the first damper and the second damper are high-frequency dampers.
The bearing dynamic and static load friction torque measurement testing machine is characterized in that the lifting device is a worm gear lifting device, and the translation device is a horizontal displacement table.
The beneficial effects of the invention are as follows:
the invention provides a dynamic and static load friction torque measurement testing machine for a bearing, which comprises a frame, wherein a clamp assembly for positioning and assembling the bearing to be tested, a bearing rotating assembly and a torque measurement assembly which are arranged on two sides of the clamp assembly, and an axial load unit and a radial load unit which are respectively used for increasing the axial load and the radial load of the bearing to be tested are arranged on the frame.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of a clamp assembly.
Fig. 3 is a perspective view of the clip assembly (with the single-sided outer frame removed).
Fig. 4 is a schematic illustration of an axial load unit.
Fig. 5 is a schematic diagram of a radial load unit.
Fig. 6 is a schematic diagram of the internal structure of the present invention.
Reference numerals: 1. a frame; 2. a clamp assembly; 3. a bearing rotation assembly; 4. a torque measurement assembly; 5. an axial load unit; 6. a radial load unit; 7. an outer frame; 8. an outer chuck; 9. an inner chuck; 10. a rotating electric machine; 11. rotating the main shaft; 12. a universal joint; 13. a torque transmission shaft; 14. a hydrostatic bearing housing; 15. a torque measurement unit; 16. a slide plate; 17. a chute; 18. fastening a knob; 19. a clamping block; 20. a slide bar; 21. a slide; 22. a first hinge shaft; 23. a first damper; 24. a first load sensor; 25. an axial actuator; 26. a lifting device; 27. a second hinge shaft; 28. a second damper; 29. a second load sensor; 30. a radial actuator; 31. a translation device; 32. a hinged triangular piece; 33. a connecting rod; 34. and (3) a bracket.
Detailed Description
In order to make the technical scheme of the invention clearer and more definite, the invention is further described below by combining the embodiment, and any scheme obtained by carrying out equivalent substitution and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention.
Example 1
The embodiment discloses a dynamic and static load friction torque measurement testing machine for a bearing, which is used for a torque measurement test of the bearing, and simultaneously increases the load, increases the load friction for the bearing under dynamic and static conditions, so that the bearing generates torque change, and provides data support for a more comprehensive life test of the bearing.
Example two
The embodiment of the friction torque measuring testing machine for dynamic and static loads of the bearing discloses specific structural characteristics of a clamp assembly 2, a bearing rotating assembly 3 and a torque measuring assembly 4, and specifically, the clamp assembly 2 comprises an outer frame 7, an outer chuck 8 and an inner chuck 9 which are arranged in the outer frame 7, wherein the outer chuck 8 and the inner chuck 9 are used for clamping a bearing to be tested, the outer chuck 8 is in interference clamping or clearance positioning with the outer wall of the bearing to be tested and is fixed through a fastener, and the inner chuck 9 is in interference clamping or clearance positioning with the outer wall of the inner wall of the bearing to be tested and is fixed through a fastener;
in order to ensure the coaxiality of the bearing to be tested, the horizontal two sides of the outer chuck 8 are connected with the outer frame 7 in an up-down sliding fit manner, and the inner chuck 9 and the outer chuck 8 are coaxially arranged;
in addition, the bearing rotating assembly 3 comprises a rotating motor 10 and a rotating main shaft 11, the rotating motor 10 is fixedly arranged on the frame 1, a transmission shaft of the rotating motor is connected with the rotating main shaft 11 through a universal joint 12, and the rotating main shaft 11 is fixedly connected with the outer chuck 8 and is horizontally and coaxially arranged;
the torque measuring assembly 4 comprises a torque transmission shaft 13, a hydrostatic bearing box 14 and a torque measuring unit 15, wherein the hydrostatic bearing box 14 and the torque measuring unit 15 are fixedly arranged on the frame 1, one end of the torque transmission shaft 13 is fixedly connected with the inner clamping head 9, the other end of the torque transmission shaft is connected with the torque measuring unit 15, and the middle part of the torque transmission shaft passes through the hydrostatic bearing box 14;
meanwhile, the torque measuring unit 15 is a torque detector, and the rotating electrical machine 10 is a variable frequency motor.
Example III
The embodiment discloses a sliding fit structure of an outer chuck 8 and an outer frame 7, specifically, sliding plates 16 are arranged on two horizontal sides of the outer chuck 8, sliding grooves 17 are arranged on two horizontal sides of the outer frame 7, the sliding plates 16 and the sliding grooves 17 are in clearance sliding fit, at the moment, the outer chuck 8 and the outer frame 7 are in sliding fit through the sliding plates 16 and the sliding grooves 17, and the outer end of the sliding plates 16 is provided with a clamping block 19, the clamping block 19 is connected with the outer end of the sliding plate 16 through a fastening knob 18, when the clamping block 19 is screwed through the fastening knob 18, the outer chuck 8 is connected with the outer frame 7 into a whole, and along with the installation of a bearing to be tested, the outer chuck 8, the inner chuck 9 and the outer frame 7 are all connected into a whole.
Example IV
The embodiment is provided with a sliding rod 20 at the lower end of an outer frame 7 and correspondingly provided with a sliding seat 21 in sliding fit with the sliding rod 20, wherein the sliding seat 21 is used for hinging the axial load unit 5 and the radial load unit 6, and when the axial load unit 5 and the radial load unit 6 apply load, the sliding seat will act on the bearing to be tested;
the axial load unit 5 of the embodiment is horizontally arranged and is used for applying an axial load to a bearing to be tested, and comprises a first hinge shaft 22, a first damper 23, a first load sensor 24, an axial actuator 25 and a lifting device 26, wherein the first hinge shaft 22, the first damper 23, the first load sensor 24 and the axial actuator 25 are sequentially and fixedly connected, one end of the first hinge shaft 22 is hinged with the sliding seat 21, the axial actuator 25 is hinged on a lifting seat of the lifting device 26, and when the lifting device 26 works, the axial load unit 5 forms an included angle with a horizontal state and adjusts the application direction of the axial load;
similarly, the radial load unit 6 of the present embodiment is vertically disposed and is configured to apply a radial load to the bearing to be tested, and includes a second hinge shaft 27, a second damper 28, a second load sensor 29, a radial actuator 30, and a translation device 31, where the second hinge shaft 27, the second damper 28, the second load sensor 29, the radial actuator 30, and the translation device 31 are sequentially and fixedly connected, one end of the second hinge shaft 27 is hinged to the slide 21, the radial actuator 30 is hinged to a translation seat of the translation device 31, and when the translation device 31 works, the radial load unit 6 forms an included angle with a vertical state, and adjusts an application direction of the radial load;
and when the axial load unit 5 and the radial load unit 6 are operated simultaneously, a resultant load will be formed.
Example five
The bearing dynamic and static load friction torque measurement testing machine optimizes the structure of a radial load unit 6 so as to achieve the purpose of saving space, specifically, the radial load unit 6 of the embodiment comprises a second hinge shaft 27, a second damper 28, a second load sensor 29, a radial actuator 30 and a translation device 31, wherein the second hinge shaft 27, the second damper 28 and the second load sensor 29 are fixedly connected in sequence, one end of the second hinge shaft 27 is hinged with a sliding seat 21, a translation seat of the translation device 31 is provided with a hinge triangular piece, three hinge positions are arranged on the hinge triangular piece 32 and are respectively positioned at three corners formed by the hinge triangular piece 32, the hinge triangular piece 32 is hinged with the translation seat of the translation device 31, the second load sensor 29 is hinged with the hinge triangular piece 32 through a connecting rod 33, one end of the radial actuator 30 is hinged with a bracket 34 in the frame 1, and the working end of the radial actuator 30 is hinged with the hinge triangular piece 32; when the radial actuator 30 works, the transmission is carried out through the hinged triangular piece 32, the load is applied to the bearing to be tested, and the horizontal position of the hinged triangular piece 32 is controlled by the translation device 31, so that the application direction of the radial load is adjusted.
Example six
The embodiment discloses a bearing dynamic and static load friction torque measurement testing machine, wherein the first damper 23 and the second damper 28 are both high-frequency dampers, the lifting device 26 is a worm gear lifting device, manual driving or motor driving can be adopted, and the translation device 31 is a horizontal displacement table.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. The friction torque measurement testing machine for the dynamic and static loads of the bearing comprises a frame (1) and is characterized in that a clamp assembly (2) for positioning and assembling the bearing to be tested, a bearing rotating assembly (3) and a torque measurement assembly (4) which are arranged on two sides of the clamp assembly (2), and an axial load unit (5) and a radial load unit (6) which are respectively used for increasing the axial load and the radial load of the bearing to be tested are arranged on the frame (1).
2. The bearing dynamic and static load friction torque measurement testing machine according to claim 1, wherein the clamp assembly (2) comprises an outer frame (7), an outer clamp head (8) and an inner clamp head (9) which are arranged in the outer frame (7), the outer clamp head (8) and the inner clamp head (9) are used for clamping a bearing to be tested, the horizontal two sides of the outer clamp head (8) are in sliding fit with the outer frame (7) up and down, and the inner clamp head (9) and the outer clamp head (8) are coaxially arranged;
the bearing rotating assembly (3) comprises a rotating motor (10) and a rotating main shaft (11), the rotating motor (10) is fixedly arranged on the frame (1), a transmission shaft of the rotating motor is connected with the rotating main shaft (11) through a universal joint (12), the rotating main shaft (11) is fixedly connected with an outer chuck (8) and is horizontally and coaxially arranged, the torque measuring assembly (4) comprises a torque transmission shaft (13), a hydrostatic bearing box (14) and a torque measuring unit (15), the hydrostatic bearing box (14) and the torque measuring unit (15) are fixedly arranged on the frame (1), one end of the torque transmission shaft (13) is fixedly connected with an inner chuck (9), the other end of the torque transmission shaft is connected with the torque measuring unit (15), and the middle of the torque transmission shaft penetrates through the hydrostatic bearing box (14).
3. A bearing dynamic and static load friction torque measurement testing machine according to claim 2, characterized in that said torque measurement unit (15) is a torque detector.
4. The bearing dynamic and static load friction torque measurement testing machine according to claim 2, wherein the rotating electrical machine (10) is a variable frequency motor.
5. The bearing dynamic and static load friction torque measurement testing machine according to claim 2, wherein sliding plates (16) are arranged on two horizontal sides of the outer clamping head (8), sliding grooves (17) are arranged on two horizontal sides of the outer frame (7), the sliding plates (16) and the sliding grooves (17) are in clearance sliding fit, the outer clamping head (8) and the outer frame (7) are in sliding fit through the sliding plates (16) and the sliding grooves (17), the outer end of the sliding plates (16) is connected with a clamping block (19) through a fastening knob (18), and the clamping block (19) is screwed through the fastening knob (18) to enable the outer clamping head (8) to be connected with the outer frame (7) into a whole.
6. The bearing dynamic and static load friction torque measuring tester according to claim 5, wherein the lower end of the outer frame (7) is provided with a sliding rod (20) and a sliding seat (21) which is in sliding fit with the sliding rod (20) correspondingly;
the axial load unit (5) comprises a first hinge shaft (22), a first damper (23), a first load sensor (24), an axial actuator (25) and a lifting device (26), wherein the first hinge shaft (22), the first damper (23), the first load sensor (24) and the axial actuator (25) are sequentially and fixedly connected, one end of the first hinge shaft (22) is hinged with the sliding seat (21), and the axial actuator (25) is hinged on the lifting seat of the lifting device (26).
7. The bearing dynamic and static load friction torque measurement testing machine according to claim 6, wherein the radial load unit (6) comprises a second hinge shaft (27), a second damper (28), a second load sensor (29), a radial actuator (30) and a translation device (31), the second hinge shaft (27), the second damper (28), the second load sensor (29), the radial actuator (30) and the translation device (31) are fixedly connected in sequence, one end of the second hinge shaft (27) is hinged with the sliding seat (21), and the radial actuator (30) is hinged on the translation seat of the translation device (31).
8. The bearing dynamic and static load friction torque measuring test machine according to claim 6, wherein the radial load unit (6) comprises a second hinge shaft (27), a second damper (28), a second load sensor (29), a radial actuator (30) and a translation device (31), the second hinge shaft (27), the second damper (28) and the second load sensor (29) are fixedly connected in sequence, one end of the second hinge shaft (27) is hinged with the sliding seat (21), a translation seat of the translation device (31) is provided with a hinge triangular piece, three hinge positions are arranged on the hinge triangular piece (32) and are respectively positioned at three corners formed by the hinge triangular piece (32), the hinge triangular piece (32) is hinged with a translation seat of the translation device (31), one end of the second load sensor (29) is hinged with the hinge triangular piece (32) through a connecting rod (33), one end of the radial actuator (30) is hinged with a bracket (34) in the frame (1), and the work end of the radial actuator is hinged with the hinge triangular piece (32).
9. A machine for measuring friction torque under dynamic and static load of bearing according to any one of claims 7 and 8, wherein said first damper (23) and said second damper (28) are high frequency dampers.
10. A machine for measuring friction torque of dynamic and static load of bearing according to any one of claims 7 and 8, wherein the lifting device (26) is a worm gear lifting device, and the translation device (31) is a horizontal displacement table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211650921.3A CN116296379A (en) | 2022-12-21 | 2022-12-21 | Bearing dynamic and static load friction torque measurement testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211650921.3A CN116296379A (en) | 2022-12-21 | 2022-12-21 | Bearing dynamic and static load friction torque measurement testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN116296379A true CN116296379A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211650921.3A Pending CN116296379A (en) | 2022-12-21 | 2022-12-21 | Bearing dynamic and static load friction torque measurement testing machine |
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| Country | Link |
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| CN (1) | CN116296379A (en) |
Citations (8)
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| CN101034025A (en) * | 2006-10-24 | 2007-09-12 | 杭州轴承试验研究中心有限公司 | Automobile hub bearing friction torque tester and testing method thereof |
| CN103257043A (en) * | 2012-02-17 | 2013-08-21 | 昆山福维斯精密机械有限公司 | Automobile hub bearing endurance life simulation testing machine |
| CN103398809A (en) * | 2013-08-01 | 2013-11-20 | 杭州轴承试验研究中心有限公司 | Friction torque tester of bearing of automobile hub |
| CN208366610U (en) * | 2018-06-08 | 2019-01-11 | 苏州施奇尔汽车技术有限公司 | A kind of hub bearing muddy water can immersion life test machine |
| CN109781438A (en) * | 2019-02-20 | 2019-05-21 | 浙江吉利汽车研究院有限公司 | Vehicle body fatigue experimental device and test method |
| CN109900402A (en) * | 2017-12-07 | 2019-06-18 | 洛阳轴承研究所有限公司 | A kind of bearing frictional torque measurement tooling |
| CN112577738A (en) * | 2020-11-26 | 2021-03-30 | 人本股份有限公司 | Wheel hub bearing durability test tool |
| CN113295409A (en) * | 2021-04-28 | 2021-08-24 | 洛阳摩科机械科技有限公司 | Bearing friction torque testing machine |
-
2022
- 2022-12-21 CN CN202211650921.3A patent/CN116296379A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034025A (en) * | 2006-10-24 | 2007-09-12 | 杭州轴承试验研究中心有限公司 | Automobile hub bearing friction torque tester and testing method thereof |
| CN103257043A (en) * | 2012-02-17 | 2013-08-21 | 昆山福维斯精密机械有限公司 | Automobile hub bearing endurance life simulation testing machine |
| CN103398809A (en) * | 2013-08-01 | 2013-11-20 | 杭州轴承试验研究中心有限公司 | Friction torque tester of bearing of automobile hub |
| CN109900402A (en) * | 2017-12-07 | 2019-06-18 | 洛阳轴承研究所有限公司 | A kind of bearing frictional torque measurement tooling |
| CN208366610U (en) * | 2018-06-08 | 2019-01-11 | 苏州施奇尔汽车技术有限公司 | A kind of hub bearing muddy water can immersion life test machine |
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| CN113295409A (en) * | 2021-04-28 | 2021-08-24 | 洛阳摩科机械科技有限公司 | Bearing friction torque testing machine |
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