CN106124207A - A kind of gear transmission error is test bed - Google Patents
A kind of gear transmission error is test bed Download PDFInfo
- Publication number
- CN106124207A CN106124207A CN201610784531.3A CN201610784531A CN106124207A CN 106124207 A CN106124207 A CN 106124207A CN 201610784531 A CN201610784531 A CN 201610784531A CN 106124207 A CN106124207 A CN 106124207A
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- pedestal
- driven pulley
- drivewheel
- gear
- gai
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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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of gear transmission error test bed, frequency conversion motor imparts power to testing gears pair drivewheel by planetary reduction gear and the second torque speed sensor；Magnetic powder loader provides braking moment by the first torque speed sensor for driven pulley；Test bed upper drive sprocket axle and follower shaft are respectively mounted Circular gratings, the corner of prototype gear, and then calculate gear transmission error.Drivewheel pedestal is fixed on gear pair pedestal, and driven pulley pedestal passes through guide rails assembling on gear pair pedestal, it is achieved measure the transmission error of the gear pair of different gear parameters compositions；Laser interferometer, the distance between real-time testing drive sprocket axle and follower shaft is had on test bed；Installing friction plate at the two ends of driven pulley pedestal, supporting be provided with 2 hydraulic cylinders, the carrying out making testing stand reliable and stable under fully loaded transportation condition is tested.The test bed simple in construction of gear transmission error, can realize high precision measurement under fully loaded transportation condition.
Description
Technical field
The present invention relates to the corner transmission technical field of measurement and test of gear, it particularly relates to a kind of gear transmission error is surveyed
Examination testing stand.
Background technology
Gear drive is a kind of mechanical type the most frequently used in machine driving transmission, has efficiency height, compact conformation, life-span
The advantages such as length, are widely used in the field such as Aeronautics and Astronautics, engineering machinery.Transmission error is used for weighing the standard of gear transmitting movement
Really degree, it is the important parameter affecting the operating accuracy of gear, vibration, noise, reliability and life-span.
Gear transmission error testing stand, can be divided into open type testing stand and closed loop test-bed two kinds, machine according to power stream situation
The power of the power set that tool blocking test platform needs is little, and control system is simple, but mechanical close test platform structure is relative complex,
Poor universality, it is common that test for a certain particular gear pair；The power set power that open type testing stand needs is big, but logical
Good by property, the transmission error being easier to realize the gear pair to different gear parameter compositions is measured.
Conventional gears transmission error is measured and is mostly confined under experimental condition, for a certain gear pair, sets up particular gear
Case, is only capable of the gear pair of particular gear parameter is carried out transmission error measurement.Also some testing stand can realize difference
The gear pair transmission error of gear parameter composition is measured, but after changing gear pair, testing stand can not keep original precision, and
And can not be reliable and stable under fully loaded transportation condition work.
" gear transmission error detection equipment " of patent of invention CN 201945450 U, can realize different gear parameter groups
The measurement of the gear pair transmission error become, but be only capable of under conditions of side crops industry testing, and after replacing gear pair, testing stand tooth
Wheel set precision relies solely on the kinematic accuracy of motor itself and indirectly ensures.And current boats and ships gear has high-power, high
Precision, the feature of low noise.It is therefore necessary to a kind of gear transmission error detection equipment of invention, can test by different gear ginsengs
The transmission error of the gear pair that array becomes, can realize again reliable and stable high accuracy outer corner measurement under fully loaded transportation condition.
Summary of the invention
The deficiency existed in order to avoid prior art, it is test bed that the present invention proposes a kind of gear transmission error, this biography
Pass the transmission error that error testing testing stand can test the gear pair of different gear parameter composition, and to change testing gears secondary every time
Rear testing stand all can keep gear pair precision, especially can realize reliable and stable high accuracy outer corner measurement at fully loaded transportation condition.
The technical solution adopted for the present invention to solve the technical problems is: gear transmission error is test bed, at pedestal
The side of platform is sequentially installed with the first pedestal, the second pedestal, the 3rd pedestal, and pedestal is separately installed with frequency conversion motor, planet
Decelerator and the second torque speed sensor, be connected by the 4th shaft coupling, the 5th shaft coupling between three, and frequency conversion motor leads to
Cross planetary reduction gear and the second torque speed sensor imparts power to testing gears pair drivewheel；At another of base platform
Side, is sequentially installed with the 4th pedestal and the 5th pedestal, is separately installed with magnetic powder loader and the first torque speed sensor above,
Braking moment is provided for driven pulley；It is characterized in that including that drive wheel assemblies, driven pulley assembly, drivewheel pedestal, drivewheel are left
The right Ji Gai of Ji Gai, drivewheel, driven pulley pedestal, the left Ji Gai of driven pulley, the right Ji Gai of driven pulley, gear pair pedestal, laser head, linear
Interferoscope, measurement reflecting mirror, one group of precise hydraulic rail plate, a set of ball-screw, the first hydraulic cylinder, second hydraulic cylinder；Tooth
Wheel set pedestal is arranged in base platform, and installed above have drivewheel pedestal and driven pulley pedestal, and drivewheel pedestal is arranged on tooth
On wheel set pedestal, driven pulley pedestal is arranged on gear pair pedestal by one group of precise hydraulic rail plate；Drive wheel assemblies and
Driven pulley assembly is separately mounted on corresponding drivewheel pedestal and driven pulley pedestal；Drivewheel pedestal and the left Ji Gai of drivewheel
It is located by connecting by the first taper pin, the 8th taper pin and bolt；Drivewheel pedestal and the right Ji Gai of drivewheel by the second taper pin,
3rd taper pin and bolt are located by connecting；Driven pulley pedestal and the left Ji Gai of drivewheel are by the 6th taper pin, the 7th taper pin and spiral shell
Bolt is located by connecting；Driven pulley pedestal and the right Ji Gai of driven pulley carry out location even by the 4th taper pin, the 5th taper pin and bolt
Connect；In the lower section of driven pulley pedestal, a set of ball screw assembly, is installed, controls the movement of driven pulley pedestal by rotating handwheel,
In order to the installation that different testing gears are secondary；Laser head is bolted on the right Ji Gai of drivewheel, and linear interference mirror passes through spiral shell
Bolt is fixed on the left Ji Gai of drivewheel, measures reflecting mirror and is bolted on the left Ji Gai of driven pulley, and three forms laser and does
Interferometer, for detecting the distance of gear pair centre-to-centre spacing；2 friction plates are had, respectively with the first hydraulic pressure in the both sides of driven pulley pedestal
Cylinder, the second hydraulic cylinder match, and two hydraulic cylinders are directly installed on gear pair pedestal；On gear pair drive sprocket axle and gear
It is respectively mounted the first Circular gratings and the second Circular gratings on secondary follower shaft.
It is connected to the first torque speed sensor at test bed input drive sprocket axle by diaphragm coupling, surveys
The outfan follower shaft of examination testing stand is connected to the second torque speed sensor by diaphragm coupling, is used for testing and feeding back
Control the actual condition that testing gears is secondary；Use one group of precise hydraulic rail plate to ensure that driven pulley pedestal keeps in movement
The highest linear precision；Laser head, linear interference mirror, measurement reflecting mirror form a set of laser interferometer, monitor drivewheel
Centre distance between axle and follower shaft, after making driven pulley pedestal move, holding position precision；At drive sprocket axle and driven pulley
Two high-precision Circular gratings are installed, it is achieved the accurate measurement to gear corner on axle, and then calculate gear transmission error.
Beneficial effect
Gear transmission error of the present invention is test bed, according to the requirement that testing gears is secondary, by dismounting and replacing minority
Part, can install the transmission error of the gear pair of test different gear parameter composition.In test bed input and output
End is separately installed with torque speed sensor, can real-time testing and the actual condition of feedback control testing gears pair；At drivewheel
Two high-precision Circular gratings are installed, it is achieved the accurate measurement to gear corner on axle and follower shaft, and then calculate gear
Transmission error.
Gear transmission error of the present invention is test bed, is provided with a set of precise hydraulic in the lower section of driven pulley pedestal and slides
Guide rail, it is ensured that driven pulley pedestal has the highest linear precision in movement；On the left Ji Gai of drivewheel, the right Ji Gai of drivewheel respectively
Being provided with laser head, linear interference mirror, be provided with measurement reflecting mirror on the left Ji Gai of driven pulley, three forms a set of laser interference
Instrument, even if after changing gear pair, driven pulley pedestal can keep positional precision accurately；Install in the both sides of driven pulley pedestal
Having two friction plates, supporting has 2 brake fluid cylinder pressures, and operationally, 2 hydraulic cylinders are braked simultaneously so that though testing stand
Work that also can be reliable and stable at fully loaded transportation condition.
Accompanying drawing explanation
The most detailed to the one test bed work of gear transmission error of the present invention with embodiment below in conjunction with the accompanying drawings
Explanation.
Fig. 1 is the test bed axonometric drawing of gear transmission error of the present invention.
Fig. 2 is test bed axonometric drawing.
Fig. 3 is pinion assemblies and gear wheel assembly profile.
In figure:
1. magnetic powder loader 2. first shaft coupling 3. first torque speed sensor 4. second shaft coupling 5. testing experiment
Platform
6. the 3rd shaft coupling 7. second torque speed sensor 8. the 4th shaft coupling 9. planetary reduction gear 10. 5-linked
Axial organ
11. frequency conversion motor 12. first pedestal 13. second pedestal 14. the 3rd pedestal 15. base platform 16. the 4th bases
Seat
17. the 5th pedestals 18. measure the reflecting mirror 19. first Circular gratings 20. linear interference mirror 21. left Ji Gai of drivewheel
22. drive wheel assemblies 23. laser head 24. drivewheel right base lid 25. drivewheel pedestal 26. second Circular gratings
27. first hydraulic cylinder 28. driven pulley right base lid 29. driven pulley pedestal 30. precise hydraulic rail plate assembly
31. ball-screw assembly 32. gear pair pedestal 33. second hydraulic cylinder 34. driven pulley left base lid 35. driven pulleys
Assembly
36. drivewheel left bearing end cap 37. first a set of cups 38. first taper bolt 39. first taper roll bearings
40. drivewheel 41. drive sprocket axle 42. drivewheel axle sleeve 43. second taper bolt 44. drivewheel right bearing end caps
45. second taper roll bearing 46. second a set of cups 47. the 3rd taper bolt 48. the 4th taper bolts
49. driven pulley right bearing end cap 50. the 3rd a set of cups 51. second Circular gratings gland 52. the 3rd taper roll bearings
53. the 5th taper bolt 54. driven pulley 55. follower shaft 56. driven pulley axle sleeve 57. the 6th taper bolts
58. the 4th taper roll bearing 59. the 4th a set of cups 60. driven pulley left bearing end cap 61. shaft coupling axle sleeves
62. the 7th taper bolt 63. the 8th taper bolt 64. first Circular gratings glands
Detailed description of the invention
The present embodiment is that a kind of gear transmission error is test bed.
Refering to Fig. 1, Fig. 2, Fig. 3, the present embodiment gear transmission error is test bed, in the side of base platform 15 successively
First pedestal the 12, second pedestal the 13, the 3rd pedestal 14 is installed, is separately installed with frequency conversion motor 11, planetary reduction gear 9 and above
Second torque speed sensor 7, is connected with each other by the 4th shaft coupling the 8, the 5th shaft coupling 10 between three, and frequency conversion motor 11 leads to
Cross planetary reduction gear 9 and the second torque speed sensor 7 imparts power to testing gears pair drivewheel 40；In base platform 15
Opposite side, the 4th pedestal 16 and the 5th pedestal 17 is installed, is separately installed with magnetic powder loader 1 and the first moment of torsion rotating speed above
Sensor 3, provides braking moment for gear pair driven pulley 54；Test bed the 5 of center are by drive wheel assemblies 22, driven wheels
Part 35, drivewheel pedestal 25, drivewheel left base lid 21, drivewheel right base lid 24, driven pulley pedestal 29, driven pulley left base lid 34,
Driven pulley right base lid 28, gear pair pedestal 32, laser head 23, linear interference mirror 20, measurement 18, one group of precise hydraulic of reflecting mirror are sliding
Dynamic guide rail 30, a set of ball-screw the 31, first hydraulic cylinder the 27, second hydraulic cylinder 33 form；Drive wheel assemblies is by the left axle of drivewheel
Socket end lid the 36, first a set of cups the 37, first taper roll bearing 39, drivewheel 40, drive sprocket axle 41, drivewheel axle sleeve 42, actively
Wheel right bearing end cap the 44, second taper roll bearing the 45, second a set of cups 46 forms；Driven pulley assembly is by driven pulley right bearing end cap
49, the 3rd a set of cups the 50, the 3rd taper roll bearing 52, driven pulley 54, follower shaft 55, the rolling of driven pulley axle sleeve the 56, the 4th circular cone
Sub-bearing the 58, the 4th a set of cups 59, driven pulley left bearing end cap 60 form；Gear pair pedestal 32 is arranged on base platform by bolt
On 15, installed above have drivewheel pedestal 25 and driven pulley pedestal 29；Drivewheel pedestal 25 is directly installed on gear by bolt
On secondary pedestal 32, driven pulley pedestal 29 is arranged on gear pair pedestal 32 by one group of precise hydraulic rail plate 30；Drivewheel
Assembly 22 and driven pulley assembly 35 are separately mounted on corresponding drivewheel top base 25 and driven pulley pedestal 29；Drivewheel base
Seat 25 and drivewheel left base lid 21 are located by connecting by the first taper pin the 38, the 8th taper pin 63 and bolt；Drivewheel pedestal 25
Base lid 24 right with drivewheel is located by connecting by the second taper pin the 43, the 3rd taper pin 47 and bolt；Driven pulley pedestal 29 and master
Driving wheel left base lid 34 is located by connecting by the 6th taper pin the 57, the 7th taper pin 62 and bolt；Driven pulley pedestal 29 and driven pulley
Right base lid 28 is located by connecting by the 4th taper pin the 48, the 5th taper pin 53 and bolt；At driven pulley pedestal 29 gear pair pedestal
A set of ball screw assembly, 31 is installed between 32, controls the movement of driven pulley pedestal 29 by rotating handwheel；Laser head 23 leads to
Crossing and be bolted on drivewheel right base lid 24, linear interference mirror 20 is bolted on drivewheel left base lid 21, measures
Reflecting mirror 18 is bolted on driven pulley left base lid 34, and three forms a set of laser interferometer, detects gear pair centre-to-centre spacing
Distance；There are 2 friction plates in the both sides of driven pulley pedestal 29, match with first hydraulic cylinder the 27, second hydraulic cylinder 33 respectively,
Two hydraulic cylinders are directly installed on gear pair pedestal 32；The outer ring of the first Circular gratings 19 is bolted on drivewheel pedestal
On 25, inner ring is fixed on drive sprocket axle by the first Circular gratings gland 64 and main gear shaft 41；The outer ring of the second Circular gratings 26
Being bolted on driven pulley pedestal 29, inner ring by the second Circular gratings gland 51 and is fixed on from gear from gear shaft 55
On axle.
In the present embodiment, testing stand uses torque speed sensor to test and the actual condition of feedback control gear pair,
Precise hydraulic guide rail and laser interferometer is used to ensure the highest linear precision and location in driven pulley pedestal moving process
Precision, employing liquid braking device can make the test that testing stand is the most reliable and stable under fully loaded transportation condition, use high accuracy circular grating
Realize the accurate measurement of gear corner, and then calculate the transmission error of gear.
Before testing, the handwheel of rotation ball leading screw 31 moves driven pulley pedestal 26, makes driven pulley pedestal 29 and drivewheel
Pedestal 25 against, open laser head 23, the test value now resetting laser interferometer is testing stand gear pair centre-to-centre spacing minima；
Then the handwheel of rotation ball leading screw 31 moves driven pulley pedestal 26, in the test value of laser interferometer is testing gears pair
The heart away from time, the cylinder head up and down of first hydraulic cylinder the 27, second hydraulic cylinder 33 starts simultaneously at braking, fixing driven pulley pedestal 29；Then,
Unclamp the bolt between drivewheel pedestal 25 and drivewheel left base lid 21, drivewheel right base lid 24 and taper pin, and driven pulley base
Seat 29 and driven pulley left base lid 34, driven pulley right base lid 28 before bolt and taper pin；Then the active that testing gears is secondary is installed
Wheel assembly 21 and driven pulley assembly 31, and again tighten drivewheel pedestal 25 and drivewheel left base lid 21, drivewheel right base lid 24
Between bolt and bolt before taper pin, and driven pulley pedestal 29 and driven pulley left base lid 34, driven pulley right base lid 28 and
Taper pin；Then, start frequency conversion motor 11 and magnetic powder brake 1, and use the first torque speed sensor 7 and the second moment of torsion rotating speed
Sensor 3 is to test bed drive sprocket axle 41 and the rotating speed of follower shaft 55 and moment of torsion detects in real time and and enters motor
Row feedback control, reaches the measurement condition that we are practically necessary；Finally, the first Circular gratings 19 and the second Circular gratings 26 start right
The corner of gear starts to measure, and then calculates the transmission error of gear.
Claims (2)
1. a gear transmission error is test bed, be sequentially installed with in the side of base platform the first pedestal, the second pedestal,
3rd pedestal, pedestal is separately installed with frequency conversion motor, planetary reduction gear and the second torque speed sensor, passes through between three
4th shaft coupling, the 5th shaft coupling are connected, and frequency conversion motor passes through planetary reduction gear and the second torque speed sensor by power
Pass to testing gears pair drivewheel；At the opposite side of base platform, it is sequentially installed with the 4th pedestal and the 5th pedestal, divides above
Magnetic powder loader and the first torque speed sensor are not installed, provide braking moment for driven pulley；It is characterized in that: include main
Drive wheel assemblies, driven pulley assembly, drivewheel pedestal, the left Ji Gai of drivewheel, the right Ji Gai of drivewheel, driven pulley pedestal, driven pulley are left
The right Ji Gai of Ji Gai, driven pulley, gear pair pedestal, laser head, linear interference mirror, measurement reflecting mirror, one group of precise hydraulic slide and lead
Rail, a set of ball-screw, the first hydraulic cylinder, the second hydraulic cylinder；Gear pair pedestal is arranged in base platform, and installed above have master
Driving wheel pedestal and driven pulley pedestal, drivewheel pedestal is arranged on gear pair pedestal, and driven pulley pedestal passes through one group of precise hydraulic
Rail plate is arranged on gear pair pedestal；Drive wheel assemblies and driven pulley assembly are separately mounted to corresponding drivewheel pedestal
With on driven pulley pedestal；Drivewheel pedestal and the left Ji Gai of drivewheel carry out location even by the first taper pin, the 8th taper pin and bolt
Connect；Drivewheel pedestal and the right Ji Gai of drivewheel are located by connecting by the second taper pin, the 3rd taper pin and bolt；Driven pulley pedestal
Ji Gai left with drivewheel is located by connecting by the 6th taper pin, the 7th taper pin and bolt；Driven pulley pedestal and the right base of driven pulley
Lid is located by connecting by the 4th taper pin, the 5th taper pin and bolt；In the lower section of driven pulley pedestal, a set of ball wire is installed
Thick stick is secondary, controls the movement of driven pulley pedestal by rotating handwheel, in order to the installation that different testing gears are secondary；Laser head passes through spiral shell
Bolt is fixed on the right Ji Gai of drivewheel, and linear interference mirror is bolted on the left Ji Gai of drivewheel, measures reflecting mirror and passes through
Being bolted on the left Ji Gai of driven pulley, three forms laser interferometer, for detecting the distance of gear pair centre-to-centre spacing；Driven
There are 2 friction plates the both sides of wheel pedestal, match with the first hydraulic cylinder, the second hydraulic cylinder respectively, and two hydraulic cylinders are mounted directly
On gear pair pedestal；The first Circular gratings and the second circle it is respectively mounted on gear pair drive sprocket axle and on gear pair follower shaft
Grating.
Gear transmission error the most according to claim 1 is test bed, it is characterised in that: in test bed input
End drive sprocket axle is connected to the first torque speed sensor by diaphragm coupling, and test bed outfan follower shaft leads to
Cross diaphragm coupling and be connected to the second torque speed sensor, be used for testing the actual condition secondary with feedback control testing gears；
Use one group of precise hydraulic rail plate to ensure that driven pulley pedestal keeps the highest linear precision in movement；Laser head, line
Property interferoscope, measure reflecting mirror form a set of laser interferometer, monitoring drive sprocket axle and follower shaft between centre-to-centre spacing
From, after making driven pulley pedestal move, holding position precision；Drive sprocket axle and follower shaft are installed two high-precision round light
Grid, it is achieved the accurate measurement to gear corner, and then calculate gear transmission error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784531.3A CN106124207A (en) | 2016-08-31 | 2016-08-31 | A kind of gear transmission error is test bed |
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| CN201610784531.3A CN106124207A (en) | 2016-08-31 | 2016-08-31 | A kind of gear transmission error is test bed |
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| CN106124207A true CN106124207A (en) | 2016-11-16 |
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| CN106802241A (en) * | 2017-01-18 | 2017-06-06 | 安徽江淮汽车集团股份有限公司 | Gear transmission error test device and method |
| CN107219074A (en) * | 2017-06-06 | 2017-09-29 | 北京航空航天大学 | Space high pulling torque rope drive drive system rigidity test equipment |
| CN107560847A (en) * | 2017-10-13 | 2018-01-09 | 中国船舶重工集团公司第七0三研究所 | A kind of single gear transmission error test system |
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| CN106802241A (en) * | 2017-01-18 | 2017-06-06 | 安徽江淮汽车集团股份有限公司 | Gear transmission error test device and method |
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| CN107219074A (en) * | 2017-06-06 | 2017-09-29 | 北京航空航天大学 | Space high pulling torque rope drive drive system rigidity test equipment |
| CN107219074B (en) * | 2017-06-06 | 2019-12-10 | 北京航空航天大学 | Transmission rigidity testing equipment for space large-torque rope transmission system |
| CN107560847A (en) * | 2017-10-13 | 2018-01-09 | 中国船舶重工集团公司第七0三研究所 | A kind of single gear transmission error test system |
| CN108195580A (en) * | 2018-01-29 | 2018-06-22 | 西北工业大学 | A kind of buoyant raft vibration isolation gear train assembly vibration is transmitted and noise testing experimental rig |
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| CN108254115B (en) * | 2018-01-29 | 2024-02-02 | 大连交通大学 | Cycloidal pin gear meshing stress testing device |
| CN108562425A (en) * | 2018-02-05 | 2018-09-21 | 重庆机床(集团)有限责任公司 | Gear hobbing machine knife frame test platform and its test method |
| CN108061652A (en) * | 2018-02-05 | 2018-05-22 | 重庆机床(集团)有限责任公司 | Gear hobbing machine worktable test platform and its test method |
| CN108827626A (en) * | 2018-03-19 | 2018-11-16 | 南京航空航天大学 | The quasi-static transmission error testing stand of cylindrical gear pair, test and data processing method |
| CN108871158A (en) * | 2018-05-10 | 2018-11-23 | 浙江恒星传动科技有限公司 | A kind of detection and assembly method of bevel gear pair |
| CN109029989A (en) * | 2018-09-28 | 2018-12-18 | 西北工业大学 | A kind of Fault Diagnosis of Gear Case method based on infrared thermal imaging |
| CN109029989B (en) * | 2018-09-28 | 2020-02-14 | 西北工业大学 | Gear box fault diagnosis method based on infrared thermal imaging |
| CN109520727A (en) * | 2018-11-14 | 2019-03-26 | 北京工业大学 | Low module plastic cylinder nonlinear dynamic behavior experimental apparatus for capability |
| CN109752182A (en) * | 2019-01-30 | 2019-05-14 | 中国北方车辆研究所 | Involute cylindrical gear integrated experiment device for dynamic and quasi-static test |
| CN111982508A (en) * | 2020-09-28 | 2020-11-24 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
| CN111982508B (en) * | 2020-09-28 | 2022-06-21 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
| CN112781865A (en) * | 2020-12-25 | 2021-05-11 | 中国船舶重工集团公司第七0三研究所 | Gear vibration noise test method |
| CN117330309A (en) * | 2023-12-01 | 2024-01-02 | 杭州本松新材料技术股份有限公司 | Gear performance testing device |
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