CN220039808U - Gear selecting and shifting executing mechanism test device - Google Patents
Gear selecting and shifting executing mechanism test device Download PDFInfo
- Publication number
- CN220039808U CN220039808U CN202321681319.6U CN202321681319U CN220039808U CN 220039808 U CN220039808 U CN 220039808U CN 202321681319 U CN202321681319 U CN 202321681319U CN 220039808 U CN220039808 U CN 220039808U
- Authority
- CN
- China
- Prior art keywords
- loading
- cover plate
- gear
- shaft
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000011056 performance test Methods 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to the technical field of test devices, in particular to a gear selecting and shifting executing mechanism test device, which comprises: the device base is fixedly connected with support bearings in the positioning support holes of the left side plate and the right side plate of the device base; the two sides of the gear shifting shaft are correspondingly supported by the bearing bearings in a sliding manner; the measuring device comprises an axial force sensor, a threaded shaft and a fixed bracket, wherein the axial force sensor is fixedly arranged on the fixed bracket, the threaded shaft is connected to the axial force sensor in a threaded manner, and one side of the threaded shaft is propped against one side of the gear shifting shaft; the device cover plate is arranged at the top of the left side plate and the right side plate of the device base. The actual gear shifting shaft can be simulated to perform simulation operation, so that whether the performance of the gear shifting shaft meets the design requirement and the service life requirement can be verified; can be used for performance test and endurance test of the gear selecting and shifting actuator.
Description
Technical Field
The utility model relates to the technical field of test devices, in particular to a test device for a gear selecting and shifting executing mechanism.
Background
The quality of a gear shift shaft in the gear selection and shift executing mechanism can influence the quality of the gear selection and shift executing mechanism.
Most of the existing gear selecting and shifting actuating mechanism technologies do not perform detection tests on a gear shifting shaft.
In the prior art, chinese patent application number 202020276999.3 is used for an AMT electric control type gear selecting and shifting execution mechanism performance test device and a base; the support piece is fixed on the base; the connecting part on the shifting fork clamp penetrates through the supporting piece and then is connected with the sliding component on the base, and the shifting fork clamp can move along the sliding direction of the sliding component; and one end of the load assembly is fixed on the base, the other end of the load assembly is in butt joint with the connecting part, and the load assembly can stretch and retract along the sliding direction of the sliding assembly. According to the scheme provided by the utility model, the performance test device for the AMT electric control gear selecting and shifting actuating mechanism is simple in structure, and the mechanism can be tested after the AMT gear shifting mechanism is installed on the test device, so that the AMT mechanical body can be separated from the AMT mechanical body to independently perform performance test on the gear shifting mechanism, and meanwhile, the performance test device can be placed in a high-temperature bin and a low-temperature bin to meet performance test requirements of the actuating mechanism at different environmental temperatures.
Nor was this technique tested for shift axles. However, the quality of this shift shaft is very important. Therefore, the gear selecting and shifting executing mechanism testing device for the gear shifting shaft test is designed, and the quality of the tested gear shifter can be detected.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a gear selecting and shifting executing mechanism testing device which can detect the quality of a testing gear shifter.
In order to solve the technical problems, the utility model adopts the following technical scheme: a gear selection actuator test device comprising:
the device base is fixedly connected with support bearings in the positioning support holes of the left side plate and the right side plate of the device base;
the two sides of the gear shifting shaft are correspondingly supported by the bearing bearings in a sliding manner;
the measuring device comprises an axial force sensor, a threaded shaft and a fixed bracket, wherein the axial force sensor is fixedly arranged on the fixed bracket, the threaded shaft is connected to the axial force sensor in a threaded manner, and one side of the threaded shaft is propped against one side of the gear shifting shaft;
the device cover plate is arranged at the top of the left side plate and the right side plate of the device base, and is provided with a first loading mechanism and a second loading mechanism;
the gear shifting mechanism comprises a fixed pin which is fixedly connected in a fixed pin hole of the gear shifting shaft, and a gear shifting block is fixedly connected on the fixed pin;
the gear shifting shaft locking mechanism comprises a locking spring positioning sleeve, the device cover plate is fixedly connected with the locking spring positioning sleeve through a hole in the device cover plate, a locking spring is arranged in the locking spring positioning sleeve, a locking steel ball is fixedly connected to the bottom of the locking spring, and the locking steel ball is arranged in a locking groove or a standby locking groove on the gear shifting shaft.
Further, an anti-rotation pin shaft is fixedly connected to the device cover plate, and the anti-rotation pin shaft is matched with an anti-rotation groove on the gear shift shaft and used for preventing the gear shift shaft from rotating axially.
Further, the device cover plate is fixedly installed with the device cover plate fixing holes of the side plates on two sides of the device base through screws.
Further, the front and rear plates of the device base are provided with process holes for observing the state of the gear shift shaft.
Further, the fixed support is fixedly connected with the device base through the cooperation of screws and the measuring device mounting holes on the device base.
Further, a fixing hole is formed in the device base.
Further, the first loading mechanism comprises a first loading cover plate, the first loading cover plate is fixedly connected to the left side of the device cover plate, one end penetrating through the device cover plate is in an opening shape, the bottom of the first loading cover plate is connected with a first loading pin in a sliding manner, the top of the first loading cover plate is connected with a first loading screw in a threaded manner, a first loading elastic piece is arranged between the bottom of the first loading screw and the first loading pin, the bottom of the first loading pin is fixedly connected with a first loading steel ball, a first loading groove and a first standby loading groove are formed in the outer wall of the left side of the gear shifting shaft, and the first loading steel ball is arranged in the first loading groove or the first standby loading groove;
the second loading mechanism comprises a second loading cover plate, the second loading cover plate is fixedly connected to the right side of the device cover plate, one end penetrating through the device cover plate is in an opening shape, a second loading pin is slidably connected to the bottom of the second loading cover plate, a second loading screw is connected to the top of the second loading cover plate in a threaded mode, a second loading elastic piece is arranged between the bottom of the second loading screw and the second loading pin, a second loading steel ball is fixedly connected to the bottom of the second loading pin, a second loading groove and a second standby loading groove are formed in the outer wall of the right side of the gear shifting shaft, and the second loading steel ball can be placed in the second loading groove or the second standby loading groove.
Further, a first cushion block is arranged at the top of the first loading elastic piece, and the bottom of the first loading screw is propped against the top of the first cushion block;
the top of the second loading elastic piece is provided with a second cushion block, and the bottom of the second loading screw is propped against the top of the second cushion block.
Further, a locking spring cover plate is fixedly arranged on the device cover plate, and the bottom of the locking spring cover plate is propped against the top of the locking spring.
Further, an adapter plate is also arranged on the device cover plate.
Compared with the prior art, the utility model has the beneficial effects that: the actual gear shifting shaft can be simulated to perform simulation operation, so that whether the performance of the gear shifting shaft meets the design requirement and the service life requirement can be verified;
the performance test and the durability test of the gear selecting and shifting actuator can be used;
the method is beneficial to the rapid optimization iteration of the product and shortens the verification period of the product.
Drawings
The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic diagram of an explosive structure of a gear selection and shifting actuator test device;
FIG. 2 is a schematic cross-sectional structural view of a shift actuator test device;
FIG. 3 is a schematic view of the device base structure;
fig. 4 is a schematic structural view of the shift spindle.
Reference numerals in the drawings: 1. a device base; 1001. positioning the supporting hole; 1002. a measuring device mounting hole; 1003. a process hole; 1004. a fixing hole; 1005 device cover plate fixing holes;
2. a shift block; 3. anti-rotation pin shaft; 4. the first loading steel ball;
5. a shift shaft; 5001. a first loading slot; 5002. a first standby loading slot; 5003. a fixing pin hole; 5004. a locking groove; 5005. a standby locking groove; 5006. a second loading slot; 5007 a second spare load slot; 5008. an anti-rotation groove;
6. a support bearing; 7. a first loading pin; 8. a device cover plate; 9. a first loading spring; 10. a first pad; 11. a first loading lid; 12. a first loading screw; 13. an adapter plate; 14. a locking spring cover plate; 15. a second loading screw; 16. a second loading lid; 17. a second cushion block; 18. a second loading spring; 19. a locking spring positioning sleeve; 20. a locking spring; 21. locking the steel ball; 22. a second loading pin; 23. a second loading steel ball;
24. a measuring device; 2401 axial force sensor; 2402 threaded shafts; 2403. a fixed bracket;
25. a fixing pin.
Detailed Description
It is to be understood that, according to the technical solution of the present utility model, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.
Example 1:
as shown in fig. 1, 2 and 3, the test device is provided with a device base 1, and the device base 1 is provided with a positioning support hole 1001, a measuring device mounting hole 1002, a process hole 1003, a fixing hole 1004 and a device cover plate fixing hole 1005; the device base 1 is matched with the support bearing 6 through the positioning support hole 1001 to provide radial support for the shift shaft 5; at least 2 positioning support holes 1001 are arranged on the device base 1;
the device base 1 is connected with the measuring device 24 through the measuring device mounting hole 1002, and the measuring device 24 can finish accurate measurement of the axial movement resistance of the gear shift shaft 5 and is used for adjustment of different test requirements; the measuring device 24 comprises an axial force sensor 2401, a threaded shaft 2402 and a fixed bracket 2403; the measuring device 24 is fixedly connected with the device base 1 by a fixing bracket 2403 and a bolt (not shown); the screw shaft 2402 is connected with the axial force sensor 2401 and can axially rotate and move; the axial force sensor 2401 is fixed to the fixing bracket 2403 by bolts (not shown);
the process hole 1003 arranged on the device base 1 is convenient for the assembly of the test device, and local adjustment and observation in the assembly domestic can be realized through the process hole 1003;
the fixing hole 1004 arranged on the device base 1 is arranged for the whole installation and fixing of the test device;
the device cover plate fixing holes 1005 provided on the assembly base 1 are provided for fixing the device cover plate 8 by bolts, and are precisely positioned by pin holes (not shown) to provide ready positions for loading and limiting the shift spindle 5;
the device cover plate 8 is fixedly connected with a first loading cover plate 11 and a second loading cover plate 16,
the bottoms of the first loading cover plate 11 and the second loading cover plate 16 are provided with holes matched with the first loading pin 7 and the second loading pin 22, so that a prepared position and a movable space are provided for the first loading pin 7 and the second loading pin 22; limiting grooves of the first loading elastic body 9 and the second loading elastic body 18 are further formed in the first loading cover plate 11 and the second loading cover plate 16, and the elastic bodies are prevented from excessively deforming and deviating from preset positions after being stressed;
the device cover plate 8 is also provided with threaded holes (not shown) which are fixed with the first loading cover plate 11 and the second loading cover plate 16, so that fixed connection is realized;
the device cover plate 8 is also provided with holes (not shown) for fixing the anti-rotation pin shaft 3 and the locking spring positioning sleeve 19, so as to provide a prepared position for the anti-rotation pin shaft 3 and the locking spring positioning sleeve 19 and prevent the movement thereof;
the device cover plate 8 is also provided with threaded holes (not shown) fixed with the adapter plate 13 and the locking spring cover plate 14;
the spring locking cover plate 14 is provided with a limiting locking spring positioning sleeve 19 and a locking spring 20 to prevent the movement of the limiting locking spring positioning sleeve 19 and the locking spring 20;
the adapter plate 13 is designed to adapt to different gear selecting and shifting executing mechanisms, and is matched with the different gear selecting and shifting executing mechanisms, so that the compatibility of the test device is improved, and the test cost and period are reduced;
the shift shaft 5 is provided with a first loading groove 5001, a fixing pin hole 5003, a locking groove 5004, a second loading groove 5006, and an anti-rotation groove 5008;
the shift shaft 5 is fixedly connected with the shift block 2 through a fixing pin hole 5003 and a fixing pin 25; the gear shift shaft 5 is matched and connected with the support bearing 6 and can axially move under the support of the support bearing 6; and prevents the shift shaft 5 from rotating circumferentially by the cooperation of the rotation preventing pin shaft 3 and the rotation preventing groove 5008;
the locking steel ball 21 is matched with the locking groove 5004 on the gear shift shaft 5 under the compression force of the locking spring 20 and the limitation of the locking spring positioning sleeve 19, so that axial force limitation to a certain extent is realized, and the locking force of the gear shift shaft on the gearbox is simulated;
the first loading steel ball 4 and the second loading steel ball 23 are respectively contacted with a first loading groove 5001 and a second loading groove 5006 on the gear shift shaft 5; the first loading elastic body 9 and the second loading elastic body 18 generate different forces to the first loading pin 7 and the second loading pin 22 through different compression amounts, the first loading pin 7 and the second loading pin 22 are matched with the first loading steel ball 4 and the second loading steel ball 23, the forces of the loading elastic bodies are transmitted to the loading steel balls, and different axial movement resistances of the gear shifting shaft 5 are realized through loading of the steel balls on the gear shifting shaft 5;
example 2:
as shown in fig. 2, the first loading elastic body 9 and the second loading elastic body 18 can set different compression amounts according to different test requirements, so that different movement resistances of the gear shift shaft 5 are realized, and the simulation requirements of different working conditions are met;
the first loading elastic body 9 and the second loading elastic body 18 adjust the compression force through different screwing depths of the first loading cover plate 11 and the second loading cover plate 16 by the first loading screw 12 and the second loading screw 15, so as to realize different test requirements;
a first cushion block 10 and a second cushion block 17 are arranged between the first loading screw 12 and the second loading screw 15 and the first loading elastic body 9 and the second loading elastic body 18, so as to compress the first loading elastic body 9 and the second loading elastic body 18 more favorably and make the first loading elastic body 9 and the second loading elastic body 18 compress smoothly;
the installation of a first loading component (comprising a first loading steel ball 4, a first loading pin 7, a first loading elastic piece 9, a first cushion block 10, a first loading cover plate 11 and a first loading screw 12) or a second loading component (comprising a second loading screw 15, a second loading cover plate 16, a second cushion block 17, a second loading elastic piece 18, a second loading pin 22 and a second loading steel ball 23) can be canceled according to different test requirements, so that the loading test of a single loading component is realized;
example 3:
as shown in fig. 4, the gear shift shaft 5 can be set as a multifunctional test shaft according to different project requirements; the shift spindle 5 is provided with a first loading groove 5001, a second standby loading groove 5002, a fixing pin hole 5003, a lock groove 5004, a standby lock groove 5005, a second loading groove 5006, a second standby loading groove 5007, and an anti-rotation groove 5008;
the loading grooves (comprising a first loading groove 5001, a second standby loading groove 5002, a second loading groove 5006 and a second standby loading groove 5007) can be provided with different loading strokes to simulate the gear shifting resistance under different working conditions;
for example, 1: the locking stroke of the locking groove 5004 is 10.5mm, the moving loading distance of the first loading groove 5001 can be set to be 0-5 mm for loading, and 5-10.5 mm for unloading; the moving loading distance of the second loading groove 5006 can be set to be 0-5 mm level 9-10.5 mm without loading, 5-9 mm with loading; the working condition simulation of different gear shifting resistances under different gear shifting strokes can be realized through the arrangement;
for example 2: the locking stroke of the standby locking groove 5005 is 12.5mm, and the moving loading distance of the first standby loading groove 5002 can be set to be 0-5 mm and 10.5-12.5 mm without loading, and 5-10.5 mm without loading; the moving loading distance of the second standby loading slot 5007 can be set to be 4-9 mm loading, 0-4 mm and 9-12.5 mm unloading; the working condition simulation of different gear shifting resistances under different gear shifting strokes can be realized.
The technical scope of the present utility model is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present utility model, and these changes and modifications should be included in the scope of the present utility model.
Claims (10)
1. A gear selection and shift execution mechanism test device, comprising:
the device comprises a device base (1), wherein support bearings (6) are fixedly connected in positioning support holes (1001) of left and right side plates of the device base (1);
a gear shift shaft (5), wherein the two sides of the gear shift shaft (5) are connected with corresponding support bearings (6) in a sliding manner;
the measuring device (24), the measuring device (24) comprises an axial force sensor (2401), a threaded shaft (2402) and a fixed bracket (2403), the axial force sensor (2401) is fixedly arranged on the fixed bracket (2403), the threaded shaft (2402) is connected to the axial force sensor (2401) in a threaded manner, and one side of the threaded shaft (2402) is propped against one side of the gear shifting shaft (5);
the device cover plate (8), the device cover plate (8) is arranged at the top of the left side plate and the right side plate of the device base (1), and a first loading mechanism and a second loading mechanism are arranged on the device cover plate (8);
the gear shifting mechanism comprises a fixed pin (25), the fixed pin (25) is fixedly connected in a fixed pin hole (5003) of the gear shifting shaft (5), and a gear shifting block (2) is fixedly connected to the fixed pin (25);
the gear shifting shaft locking mechanism comprises a locking spring positioning sleeve (19), the device cover plate (8) is fixedly connected with the locking spring positioning sleeve (19) through a hole in the device cover plate, a locking spring (20) is arranged in the locking spring positioning sleeve (19), a locking steel ball (21) is fixedly connected to the bottom of the locking spring (20), and the locking steel ball (21) is arranged in a locking groove (5004) or a standby locking groove (5005) in the gear shifting shaft (5).
2. The gear selecting and shifting executing mechanism testing device according to claim 1, wherein the device cover plate (8) is fixedly connected with an anti-rotation pin shaft (3), and the anti-rotation pin shaft (3) is matched with an anti-rotation groove (5008) on the gear shifting shaft (5) and used for preventing the gear shifting shaft (5) from rotating axially.
3. The gear selecting and shifting executing mechanism testing device according to claim 1, wherein the device cover plate (8) is fixedly installed with the device cover plate fixing holes (1005) of the side plates on two sides of the device base (1) through screws.
4. The gear selecting and shifting executing mechanism testing device according to claim 1, wherein the front and rear plates of the device base (1) are provided with process holes (1003) for observing the state of the gear shifting shaft (5).
5. The gear selection and shifting execution mechanism test device according to claim 1, wherein the fixed bracket (2403) is fixedly connected with the device base (1) through matching of screws and measuring device mounting holes (1002) on the device base (1).
6. The gear selecting and shifting executing mechanism testing device according to claim 1, wherein the device base (1) is further provided with a fixing hole (1004).
7. The gear selection and shift execution mechanism test device according to claim 1, wherein the first loading mechanism comprises a first loading cover plate (11), the first loading cover plate (11) is fixedly connected to the left side of the device cover plate (8), one end penetrating through the device cover plate (8) is in an opening shape, a first loading pin (7) is slidingly connected to the bottom of the first loading cover plate (11), a first loading screw (12) is connected to the top of the first loading cover plate (11) in a threaded manner, a first loading elastic piece (9) is arranged between the bottom of the first loading screw (12) and the first loading pin (7), a first loading steel ball (4) is fixedly connected to the bottom of the first loading pin (7), a first loading groove (5001) and a first standby loading groove (5002) are formed in the outer wall of the left side of the gear shift shaft (5), and the first loading steel ball (4) is arranged in the first loading groove (5001) or the first standby loading groove (5002);
the second loading mechanism comprises a second loading cover plate (16), the second loading cover plate (16) is fixedly connected to the right side of the device cover plate (8), one end penetrating through the device cover plate (8) is in an opening shape, a second loading pin (22) is slidably connected to the bottom of the second loading cover plate (16), a second loading screw (15) is connected to the top of the second loading cover plate (16) in a threaded mode, a second loading elastic piece (18) is arranged between the bottom of the second loading screw (15) and the second loading pin (22), a second loading steel ball (23) is fixedly connected to the bottom of the second loading pin (22), a second loading groove (5006) and a second standby loading groove (5007) are formed in the outer wall of the right side of the gear shifting shaft (5), and the second loading steel ball (23) can be placed in the second loading groove (5006) or the second standby loading groove (5007).
8. The gear selection and shift execution mechanism test device according to claim 7, wherein a first cushion block (10) is arranged at the top of the first loading elastic piece (9), and the bottom of the first loading screw (12) is propped against the top of the first cushion block (10);
the top of second loading elastic piece (18) is provided with second cushion (17), the bottom of second loading screw (15) and the top of second cushion (17) are pressed against.
9. The gear selection and shifting execution mechanism test device according to claim 1, wherein a locking spring cover plate (14) is fixedly arranged on the device cover plate (8), and the bottom of the locking spring cover plate (14) is propped against the top of a locking spring (20).
10. A gear selection and shifting actuator test device according to claim 1, characterized in that the device cover plate (8) is also provided with an adapter plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681319.6U CN220039808U (en) | 2023-06-29 | 2023-06-29 | Gear selecting and shifting executing mechanism test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681319.6U CN220039808U (en) | 2023-06-29 | 2023-06-29 | Gear selecting and shifting executing mechanism test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220039808U true CN220039808U (en) | 2023-11-17 |
Family
ID=88743267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321681319.6U Active CN220039808U (en) | 2023-06-29 | 2023-06-29 | Gear selecting and shifting executing mechanism test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220039808U (en) |
-
2023
- 2023-06-29 CN CN202321681319.6U patent/CN220039808U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108072572A (en) | The biaxial stretch-formed mechanics performance testing device of low-temperature in-site | |
| CN103048136A (en) | High and low temperature environment service life testing machine for joint bearing | |
| CN109085079B (en) | Multifunctional internal combustion engine cylinder sleeve piston ring friction wear testing machine | |
| CN114877788A (en) | Device and method for detecting radial clearance of aerospace bearing | |
| CN112834219B (en) | Loading tool assembly for bearing testing machine and method for loading test bearings | |
| CN106324500A (en) | Electric motor durability testing device | |
| CN113108963B (en) | Dynamic testing device for circumferential radial elasticity of piston ring | |
| CN108444690B (en) | A endurance test rack for AMT selects operating device that shifts | |
| CN220039808U (en) | Gear selecting and shifting executing mechanism test device | |
| CN106644329B (en) | 120MN bridge support testing machine for high-precision dynamic measurement | |
| CN107991045A (en) | Line contact slide frictional vibration noise fest platform | |
| CN107044937B (en) | Tension torsion extensometer with spherical bearing linkage | |
| CN211740612U (en) | AMT gearshift durability test bench | |
| CN109975105B (en) | Automatic measurement system for thickness-direction deformation resistance of plate | |
| CN116380692A (en) | Device and method for testing shock resistance of planetary roller screw | |
| CN112629860B (en) | Testing machine for detecting fretting wear of automobile hub bearing and detection method thereof | |
| CN110595994A (en) | Method and device for measuring friction coefficient based on electronic universal tester | |
| CN214309839U (en) | Test device for detecting stress relaxation performance of metal material | |
| CN115615803A (en) | Impact mode adjustable valve impact wear test bench | |
| KR20200054311A (en) | Tire tangential load measuring device and tire rolling resistance evaluation device | |
| CN113820130A (en) | Device for neutron in-situ measurement of fatigue strain of bearing | |
| CN116481809B (en) | Supporting bearing test system of helicopter rotor system | |
| CN114813120A (en) | Joint bearing service life test equipment with axial and radial cooperative fixation | |
| CN205129357U (en) | Car ball pivot assembly debugging anchor clamps | |
| CN216899371U (en) | Flywheel gear ring slippage torque measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |