CN113203568A - High-speed sealed bearing testing machine - Google Patents
High-speed sealed bearing testing machine Download PDFInfo
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- CN113203568A CN113203568A CN202110529864.2A CN202110529864A CN113203568A CN 113203568 A CN113203568 A CN 113203568A CN 202110529864 A CN202110529864 A CN 202110529864A CN 113203568 A CN113203568 A CN 113203568A
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- 238000012360 testing method Methods 0.000 title claims abstract description 133
- 238000009826 distribution Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 47
- 230000009286 beneficial effect Effects 0.000 description 23
- 239000012530 fluid Substances 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 8
- 238000005056 compaction Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification 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
- G01M13/045—Acoustic or vibration analysis
Abstract
The invention discloses a high-speed sealed bearing testing machine, which comprises a support, wherein a test bed is arranged on the support, a rotary driving piece and an axial loading device are respectively arranged on two sides of the test bed, a radial loading device is also arranged on the test bed in a sliding manner, the test bed comprises a test seat, a mandrel, an axial top plate, a first end cover and a second end cover, the test seat is fixedly connected with the support, the first end cover and the second end cover are respectively arranged at two ends of the test seat, the mandrel penetrates through the first end cover and is connected with the rotary driving piece, a testing station is formed on the mandrel, a bushing is arranged between the mandrel and the test seat, the bushing comprises a first end bushing, a second end bushing and a middle bushing, the axial top plate is arranged between the second end bushing and the second end cover, the axial loading device is arranged towards the axial top plate, a radial push rod is arranged at the position of the test seat corresponding to the middle bushing, a plurality of vibration measuring rods are arranged on the test seat at intervals, Temperature sensor and oil distribution pipe. The detection efficiency is higher, and the running working condition of the high-speed bearing can be better simulated.
Description
Technical Field
The invention relates to the technical field of bearing tests, in particular to a high-speed sealed bearing testing machine.
Background
At present, with the development of the fields of aviation, war industry, precision machine tools, new energy automobiles and the like, the requirement on the rotating speed of a bearing is higher and higher. The high speed of rolling bearings has been a hot spot and a difficulty in the development of the bearing industry. The theoretical calculation of the rolling bearing in a high-speed running state is extremely complex, the high-speed service life of the bearing is difficult to truly reflect, and the verification is usually carried out by means of tests. However, the existing high-speed bearing testing machine cannot well apply axial and radial loads to the tested bearing, and meanwhile, a lubricating system of the tested bearing is absent, so that the real situation cannot be well reflected during testing, the detection efficiency and the service life of the bearing to be tested are influenced, and the operation working condition of the high-speed bearing cannot be well simulated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-speed sealed bearing testing machine which is higher in detection efficiency and can better simulate the operation condition of a high-speed bearing.
In order to achieve the purpose, the invention provides a high-speed sealed bearing testing machine, which comprises a bracket, wherein a test bed is arranged on the bracket, a rotary driving piece is arranged on one side of the test bed, an axial loading device is arranged on the other side of the test bed, a radial loading device is also arranged on the test bed in a sliding manner, the test bed comprises a test seat, a mandrel, an axial top plate, a first end cover and a second end cover, the test seat is fixedly connected with the bracket, the first end cover and the second end cover are respectively arranged at the two ends of the test seat to form the sealing of the two ends of the test seat, the mandrel is rotatably arranged on the test seat and penetrates out of the first end cover, one end of the mandrel, which penetrates out of the first end cover, is in transmission connection with the rotary driving piece, a plurality of test stations for installing a bearing to be tested or an accompanying test bearing are formed on the mandrel, and a bushing is arranged between the mandrel and the test seat, the bush is including the first end bush that corresponds first end cap position setting, the second end bush that corresponds second end cap position setting and at least one well bush that is located between first end bush and the second end bush, the axial roof sets up between second end bush and second end cap, it is protruding to be formed with the conflict of wearing out the second end cap on the axial roof, axial loading device output orientation is contradicted protruding and is set up, well bush corresponds experimental station setting, the test seat corresponds well bush position and is provided with radial ejector pin, radial ejector pin is connected with axial loading device output transmission, it is provided with a plurality of vibration measuring poles still to go back the interval on the test seat, it still is provided with temperature sensor and is used for the oil pipe that joins in marriage to experimental station oiling to correspond experimental station on the test seat.
The beneficial effect who so sets up is: the arrangement is that the axial and radial loading is preferred, the servo electric cylinder and the buffer spring group are adopted to apply load to the test bearing, each test station is provided with an independent oil distribution pipe, the bearing to be tested or the accompanying bearing can be effectively lubricated, the structure is simple, the realization is facilitated, the lubricating efficiency is high, the actual working condition is effectively simulated, the radial loading can be moved, the installation of the bearing to be tested is convenient, and the device is more flexible and convenient, the mandrel structure is further arranged, the mandrel structure is simple, the installation of the bearing to be tested or the accompanying bearing is convenient, the structure is flexible, the bearing to be tested or the accompanying bearing can be arranged as required and can be arranged at intervals, a two-to-two mode can be adopted, the test is more comprehensive, various test requirements are met, the comparison is more convenient, and the running state of the test bearing can be automatically monitored, the conditions of temperature, rotating speed, vibration and the like of the bearing are obtained, the real-time alarm or shutdown can be realized through a computer, the whole test process is quick and efficient, and the quality of the bearing under the high-speed working condition can be effectively evaluated.
As a further arrangement of the invention, the test seat is fixedly connected with the bracket through the base, and the rotation stopping pin is arranged between the test seat and the base.
The beneficial effect who so sets up is: set up like this, install in the base test hole and end the commentaries on classics round pin, effectively prevent the rotation of test bench, guarantee connection quality, simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further arrangement of the invention, the base is provided with an oil return cavity corresponding to the test seat, and a temperature sensor is arranged in the oil return cavity.
The beneficial effect who so sets up is: set up like this, can effectively retrieve fluid to set up temperature-sensing ware, can effectively supervise the fluid situation, feed back the fluid state, improve overall structure's result of use.
As a further arrangement of the invention, the first end bushing and the second end bushing are symmetrically arranged, mounting steps for mounting a bearing to be tested or an accompanying bearing to be tested are formed on one sides of the first end bushing and the second end bushing facing the mandrel, first oil injection holes are formed in positions on the first end bushing and the second end bushing corresponding to the mounting steps, first annular grooves are formed in the outer peripheral walls of the first end bushing and the second end bushing, the first annular grooves are communicated with the first oil injection holes through oil ducts, and the first annular grooves are arranged corresponding to positions of oil distribution pipes.
The beneficial effect who so sets up is: set up like this for overall structure can be more installation bearing or the bearing of accompanying and trying on, simple structure does benefit to the realization simultaneously to send lubricating oil like this, simple structure can realize accurate oil feed, avoids the waste of fluid, guarantees the lubrication of bearing, effective simulation operating condition.
As a further arrangement of the invention, oil return grooves are also arranged on the inner walls of the first end bushing and the second end bushing, and the oil return grooves are communicated with the oil return cavity.
The beneficial effect who so sets up is: set up like this, the lubricated collection of being convenient for, reuse avoids lubricating oil liquid drop to drop on the support simultaneously, improves the cleanliness factor of experimental frock, and simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further arrangement of the invention, an oil distribution ring is arranged on the mandrel between adjacent test stations, a second annular groove is arranged on the outer wall of the oil distribution ring, an oil filling hole is arranged at the position of the middle bushing corresponding to the second annular groove, the oil filling hole is communicated with a corresponding oil distribution pipe, and a second oil spraying hole is also arranged at the position of the oil distribution ring corresponding to the test stations.
The beneficial effect who so sets up is: set up like this, through being provided with the annular groove on the oil distribution ring circumference, lubricating oil gets into the annular groove through oil distribution pipe, and the nozzle opening on the rethread oil distribution ring spouts to test bearing or accompany the examination bearing rolling body surface, and is lubricated accurate effective, improves lubricated efficiency, and high-efficient accurate lubricates, and simple structure does benefit to the realization simultaneously.
As a further arrangement of the invention, a pre-pressing spring is abutted between the second end cover and the axial top plate.
The beneficial effect who so sets up is: set up like this, set up the pre-compaction spring, play the effect of axial pre-compaction to experimental bearing, the location of the bearing of being convenient for await measuring improves overall structure's stability, and simple structure does benefit to the realization simultaneously.
As a further arrangement of the invention, the bracket is provided with slide rails on two sides of the test bed, the radial loading device comprises a portal frame and radial loading cylinders, the radial loading cylinders are arranged on the portal frame, two sides of the portal frame are in sliding fit with the slide rails through slide blocks, two ends of each slide rail are provided with limiting plates, fastening screws are arranged on the limiting plates, the slide blocks are provided with locking holes corresponding to the positions of the fastening screws, and the fastening screws are in threaded fit with the locking holes to limit the sliding of the portal frame.
The beneficial effect who so sets up is: by the arrangement, when the test tool needs to be disassembled, the radial loading is moved to the farthest end, and the portal frame can be locked by the fastening screw, so that slipping is prevented, and an operation space is reserved for workers; after the test tool is installed, the near end is moved in a radial loading mode and locked through the fastening screw, loading is prepared for the test, slippage in the test is avoided, the test accuracy is not affected, and meanwhile the structure is simple and beneficial to implementation.
As a further arrangement of the invention, a spindle disc is sleeved at one end of the spindle, which penetrates out of the first end cover, a spindle disc is sleeved at the output end of the rotary driving member, the spindle disc and the spindle, and the spindle disc and the output end of the rotary driving member are respectively connected through flat keys, and the spindle disc are connected through an elastic pin.
The beneficial effect who so sets up is: set up like this, make overall structure use more stable through the elastic pin connection to it is convenient to connect, effectively improves test efficiency, and the structure is comparatively simple simultaneously, does benefit to the realization.
As a further arrangement of the present invention, a spiral groove is arranged between the mandrel disc and the first end cap, and the spiral direction of the spiral groove is opposite to the rotation direction of the mandrel.
The beneficial effect who so sets up is: set up like this, the external diameter surface of dabber dish sets up spiral groove to this groove revolves to and dabber direction of rotation is opposite, can form labyrinth when high-speed rotatory, reduces leaking of lubricating oil, effectively improves overall structure's result of use.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a test bed according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first end bushing in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a first end bushing in accordance with an embodiment of the present invention;
FIG. 5 is a schematic sectional view showing an oil control ring according to an embodiment of the present invention;
FIG. 6 is a schematic view of a radial loading device engaged with a slide rail according to an embodiment of the present invention;
FIG. 7 is an enlarged view of the connection structure of the spindle and the rotary driving member according to the embodiment of the present invention.
Detailed Description
The embodiment of the high-speed sealed bearing testing machine of the invention is shown in figures 1 to 7: the device comprises a support 1, a test bed 2 is arranged on the support 1, a rotary driving part 3 is arranged on one side of the test bed 2, an axial loading device 4 is arranged on the other side of the test bed 2, a radial loading device 5 is further arranged on the test bed 2 in a sliding manner, the test bed 2 comprises a test seat 21, a mandrel 24, an axial top plate 25, a first end cover 221 and a second end cover 222, the test seat 21 is fixedly connected with the support 1, the first end cover 221 and the second end cover 222 are respectively arranged at two ends of the test seat 21 to form sealing for two ends of the test seat 21, the mandrel 24 is rotatably arranged on the test seat 21 and penetrates through the first end cover 221, one end of the mandrel 24, which penetrates out of the first end cover 221, is in transmission connection with the rotary driving part 3, a plurality of test stations for installing a bearing to be tested or accompanying and testing the bearing are formed on the mandrel 24, and a bushing is arranged between the mandrel 24 and the test seat 21, the bushings include a first end bushing 231 positioned to correspond to the position of the first end cover 221, a second end bushing 232 positioned to correspond to the position of the second end cover 222, and at least one middle bushing 233 positioned between the first end bushing 231 and the second end bushing 232, the axial top plate 25 is disposed between the second end bushing 232 and the second end cap 222, an interference protrusion 251 penetrating through the second end cap 222 is formed on the axial top plate 25, the output end of the axial loading device 4 is arranged towards the interference protrusion 251, the middle bushing 233 is arranged corresponding to the test station, the position of the test seat 21 corresponding to the middle bushing 233 is provided with a radial mandril 29, the radial mandril 29 is connected with the output end of the axial loading device 4 in a transmission way, a plurality of vibration measuring rods 281 are further arranged on the test seat 21 at intervals, and a temperature sensor 282 and an oil distribution pipe for injecting oil to the test station are further arranged on the test seat 21 corresponding to the test station. The beneficial effect who so sets up is: the arrangement is that the axial and radial loading is preferred, the servo electric cylinder and the buffer spring group are adopted to apply load to the test bearing, each test station is provided with an independent oil distribution pipe, the bearing to be tested or the accompanying bearing can be effectively lubricated, the structure is simple, the realization is facilitated, the lubricating efficiency is high, the actual working condition is effectively simulated, the radial loading can be moved, the installation of the bearing to be tested is convenient and flexible, the mandrel 24 structure is further arranged, the mandrel 24 structure is simple, the installation of the bearing to be tested or the accompanying bearing is convenient, the structure is flexible, the bearing to be tested or the accompanying bearing can be arranged as required and can be arranged at intervals, a mode of one group of two can be adopted, the test is more comprehensive, various test requirements are met, the comparison is more convenient, and the running state of the test bearing can be automatically monitored, the conditions of temperature, rotating speed, vibration and the like of the bearing are obtained, the real-time alarm or shutdown can be realized through a computer, the whole test process is quick and efficient, and the quality of the bearing under the high-speed working condition can be effectively evaluated.
In a further configuration of the present embodiment, the test socket 21 is fixedly connected to the bracket 1 via a base, and a rotation stop pin is provided between the test socket 21 and the base. The beneficial effect who so sets up is: set up like this, install in the base test hole and end the commentaries on classics round pin, effectively prevent test bench 2's rotation, guarantee connection quality, simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further configuration of the present embodiment, an oil return cavity is disposed on the base corresponding to the position of the test seat 21, and a temperature sensor is disposed in the oil return cavity. The beneficial effect who so sets up is: set up like this, can effectively retrieve fluid to set up temperature-sensing ware, can effectively supervise the fluid situation, feed back the fluid state, improve overall structure's result of use.
As a further configuration of the present embodiment, the first end bushing 231 and the second end bushing 232 are symmetrically disposed, an installation step 2321 for installing a bearing to be tested or an auxiliary bearing is formed on one side of the first end bushing 231 and the second end bushing 232 facing the mandrel 24, a first oil injection hole 2323 is disposed on the first end bushing 231 and the second end bushing 232 corresponding to the installation step 2321, a first annular groove 2322 is disposed on the outer peripheral walls of the first end bushing 231 and the second end bushing 232, the first annular groove 2322 is communicated with the first oil injection hole 2323 through an oil passage 2324, and the first annular groove 2322 is disposed corresponding to the position of the oil distribution pipe. The beneficial effect who so sets up is: set up like this for overall structure can be more installation bearing or the bearing of accompanying and trying on, simple structure does benefit to the realization simultaneously to send lubricating oil like this, simple structure can realize accurate oil feed, avoids the waste of fluid, guarantees the lubrication of bearing, effective simulation operating condition.
As a further configuration of the present embodiment, oil return grooves 2325 are further provided on inner walls of the first end bushing 231 and the second end bushing 232, and the oil return grooves 2325 are provided to communicate with an oil return cavity. The beneficial effect who so sets up is: set up like this, the lubricated collection of being convenient for, reuse avoids lubricating oil liquid drop to drop on support 1 simultaneously, improves the cleanliness factor of experimental frock, and simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further configuration of the present embodiment, an oil distribution ring 26 is disposed on the mandrel 24 between adjacent test stations, a second annular groove 261 is disposed on an outer wall of the oil distribution ring 26, an oil injection hole is disposed at a position of the middle bushing 233 corresponding to the second annular groove 261, the oil injection hole is communicated with a corresponding oil distribution pipe, and a second oil injection hole 262 is further disposed at a position of the oil distribution ring 26 corresponding to a test station. The beneficial effect who so sets up is: set up like this, through being provided with the annular groove on the oil distribution ring 26 circumference, lubricating oil gets into the annular groove through oil distribution pipe, and the oil spout on the rethread oil distribution ring 26 spouts to test bearing or accompany the test bearing rolling body surface, and is lubricated accurate effective, improves lubricated efficiency, and high-efficient accurate lubricates, and simple structure does benefit to the realization simultaneously.
As a further configuration of the present embodiment, a preload spring 27 abuts between the second end cap 222 and the axial top plate 25. The beneficial effect who so sets up is: set up like this, set up pre-compaction spring 27, play the effect of axial pre-compaction to experimental bearing, the location of the bearing of being convenient for await measuring improves overall structure's stability, and simple structure does benefit to the realization simultaneously.
As a further setting of this embodiment, support 1 is provided with slide rail 11 in 2 both sides of test bench, radial loading device 5 includes portal frame 51 and radial loading cylinder 52, radial loading cylinder 52 sets up on portal frame 51, the cooperation of sliding through slider and slide rail 11 is passed through to portal frame 51 both sides, slide rail 11 both ends are provided with limiting plate 12, be provided with fastening screw 13 on the limiting plate 12, the slider corresponds fastening screw 13 position and is provided with the locking hole, fastening screw 13 forms the spacing that slides portal frame 51 with locking hole screw-thread fit. The beneficial effect who so sets up is: by the arrangement, when the test tool needs to be disassembled, the radial loading is moved to the farthest end, and meanwhile, the portal frame 51 can be locked through the fastening screw 13, so that slipping is prevented, and an operation space is reserved for workers; after the test tool is installed, the near end is moved in a radial loading mode and locked through the fastening screw 13, loading is prepared for the test, slippage in the test is avoided, the test accuracy is not affected, and meanwhile the structure is simple and beneficial to implementation.
As a further configuration of the present embodiment, a spindle disk 241 is sleeved on one end of the spindle 24 that penetrates through the first end cover 221, a spindle disk 31 is sleeved on an output end of the rotary driving member 3, the spindle disk 241 and the spindle 24, and the spindle disk 31 and the output end of the rotary driving member 3 are respectively connected through flat keys, and the spindle disk 241 and the spindle disk 31 are connected through an elastic pin 242. The beneficial effect who so sets up is: by the arrangement, the elastic pin 242 is connected to enable the whole structure to be more stable in use, the connection is convenient and fast, the test efficiency is effectively improved, and meanwhile, the structure is simple and beneficial to implementation.
As a further configuration of the present embodiment, a spiral groove is provided between the spindle disk 241 and the first end cap 221, and the spiral groove is provided in a direction opposite to the rotation direction of the spindle 24. The beneficial effect who so sets up is: with the arrangement, the outer diameter surface of the mandrel disc 241 is provided with the spiral grooves, and the spiral direction of the grooves is opposite to the rotation direction of the mandrel 24, so that labyrinth sealing can be formed during high-speed rotation, leakage of lubricating oil is reduced, and the using effect of the whole structure is effectively improved.
The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a high-speed sealed bearing testing machine, includes the support, be provided with test bench, its characterized in that on the support: one side of the test bed is provided with a rotary driving piece, the other side of the test bed is provided with an axial loading device, the test bed is also provided with a radial loading device in a sliding manner, the test bed comprises a test seat, a mandrel, an axial top plate, a first end cover and a second end cover, the test seat is fixedly connected with a support, the first end cover and the second end cover are respectively arranged at two ends of the test seat to form the sealing of the two ends of the test seat, the mandrel is rotatably arranged on the test seat and penetrates out of the first end cover, one end of the mandrel, which penetrates out of the first end cover, is in transmission connection with the rotary driving piece, the mandrel is provided with a plurality of test stations for installing a bearing to be tested or accompanying the bearing to be tested, a bushing is arranged between the mandrel and the test seat, the bushing comprises a first end bushing arranged corresponding to the position of the first end cover, a second end bushing arranged corresponding to the position of the second end cover and at least one middle bushing positioned between the first end bushing and the second end bushing, the axial roof sets up between second end bush and second end cover, it is protruding to be formed with the conflict of wearing out the second end cover on the axial roof, axial loading device output sets up towards the conflict is protruding, well bush corresponds experimental station setting, the test bench corresponds well bush position and is provided with radial ejector pin, radial ejector pin is connected with axial loading device output transmission, it is provided with a plurality of vibration measuring poles still to go back the interval on the test bench, it still is provided with temperature sensor and is used for the oil distribution pipe to experimental station oiling to correspond experimental station on the test bench.
2. The high-speed sealed bearing testing machine of claim 1, characterized in that: the test seat is fixedly connected with the support through the base, and the rotation stopping pin is arranged between the test seat and the base.
3. The high-speed sealed bearing testing machine of claim 2, characterized in that: the base is provided with back oil chamber corresponding to the test seat, be provided with temperature-sensing ware in the back oil chamber.
4. The high-speed sealed bearing testing machine of claim 3, characterized in that: the first end bush and the second end bush are symmetrically arranged, an installation step used for installing a bearing to be tested or an accompanying and testing bearing is formed on one side, facing the core shaft, of the first end bush and the second end bush, a first oil injection hole is formed in the position, corresponding to the installation step, of the first end bush and the second end bush, a first annular groove is formed in the outer peripheral walls of the first end bush and the second end bush, the first annular groove is communicated with the first oil injection hole through an oil duct, and the first annular groove is correspondingly arranged in the position of an oil distribution pipe.
5. The high-speed sealed bearing testing machine of claim 4, characterized in that: and oil return grooves are also formed in the inner walls of the first end bushing and the second end bushing and are communicated with the oil return cavity.
6. The high-speed sealed bearing testing machine according to claim 1 or 2 or 3 or 4, characterized in that: an oil distribution ring is arranged between adjacent test stations on the mandrel, a second annular groove is formed in the outer wall of the oil distribution ring, an oil filling hole is formed in the position, corresponding to the second annular groove, of the middle bushing, the oil filling hole is communicated with the corresponding oil distribution pipe, and a second oil spraying hole is further formed in the position, corresponding to the test stations, of the oil distribution ring.
7. The high-speed sealed bearing testing machine of claim 6, characterized in that: and a pre-pressing spring is abutted between the second end cover and the axial top plate.
8. The high-speed sealed bearing testing machine of claim 1, characterized in that: the support is provided with the slide rail in test bench both sides, radial loading device includes portal frame and radial loading cylinder, radial loading cylinder sets up on the portal frame, the cooperation of sliding through slider and slide rail in portal frame both sides, the slide rail both ends are provided with the limiting plate, be provided with fastening screw on the limiting plate, the slider corresponds fastening screw position and is provided with the locking hole, fastening screw and locking hole screw-thread fit form the spacing that slides to the portal frame.
9. The high-speed sealed bearing testing machine of claim 1, characterized in that: the mandrel is provided with a mandrel disc in a sleeved mode, the mandrel penetrates out of the first end cover, the output end of the rotating driving piece is provided with a spindle disc in a sleeved mode, the mandrel disc and the mandrel and the spindle disc and the output end of the rotating driving piece are connected through flat keys respectively, and the mandrel disc and the spindle disc are connected through elastic pins.
10. The high-speed sealed bearing testing machine of claim 9, characterized in that: spiral grooves are arranged between the mandrel disc and the first end cover, and the spiral direction of the spiral grooves is opposite to the rotating direction of the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529864.2A CN113203568A (en) | 2021-05-14 | 2021-05-14 | High-speed sealed bearing testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529864.2A CN113203568A (en) | 2021-05-14 | 2021-05-14 | High-speed sealed bearing testing machine |
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| CN113203568A true CN113203568A (en) | 2021-08-03 |
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| CN202110529864.2A Pending CN113203568A (en) | 2021-05-14 | 2021-05-14 | High-speed sealed bearing testing machine |
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| CN114659786A (en) * | 2022-03-21 | 2022-06-24 | 人本股份有限公司 | Open bearing life detects frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659786A (en) * | 2022-03-21 | 2022-06-24 | 人本股份有限公司 | Open bearing life detects frock |
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