CN106017916A - Test system for endurance testing of gear box - Google Patents
Test system for endurance testing of gear box Download PDFInfo
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- CN106017916A CN106017916A CN201610334638.8A CN201610334638A CN106017916A CN 106017916 A CN106017916 A CN 106017916A CN 201610334638 A CN201610334638 A CN 201610334638A CN 106017916 A CN106017916 A CN 106017916A
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- test
- friction disc
- internal friction
- gear
- installing rack
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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 test system for endurance testing of a gear box and belongs to a field of test systems. The test system includes a lifting transmission unit, a test rack and a load applying unit. The lifting transmission unit and the load applying unit are arranged on two ends of the test rack. The lifting transmission unit includes a lifting motor and a first bearing. The load applying unit includes a test gear, a test gear shaft, an inner friction plate and an outer friction ring connected to the ground fixedly. The two ends of the test gear shaft are mounted on an end of the test track in a rotary manner through a second bearing and a third bearing respectively. A first end of the test gear shaft protrudes from the side wall of the test rack and is connected fixedly with the inner friction plate. The test system enables a friction force provided by a friction inclined surface between the inner friction plate and the outer friction plate to fit with the rated torque of a to-be-tested output small gear, so that long term operation of the gear box under the rated load is realized and an aim of endurance testing is achieved.
Description
Technical field
The present invention relates to pilot system field, particularly to the pilot system of a kind of gear-box long duration test.
Background technology
Lifting unit in gear rack lifting system is the key equipment in whole jacking system, and lifts list
Gear-box in unit is again the most important thing, and so, the endurance quality of gear-box directly affects jacking system
Service life.
During realizing the present invention, inventor finds that prior art at least there is problems in that
In prior art, endurance quality to gear-box needs to build complex test-bed when detecting,
The cost of manufacture building test-bed is higher, and install complex time-consumingly, reduce the durability of gear-box
The efficiency that can detect.
Summary of the invention
In order to solve to detect in prior art, the cost of the device of the endurance quality of gear-box is high, efficiency is low etc. lacks
Point, embodiments provides the pilot system of a kind of gear-box long duration test.Described technical scheme is as follows:
Embodiments providing the pilot system of a kind of gear-box long duration test, described pilot system includes:
Lifting gear unit, test stand and load applying unit, described lifting gear unit and described load apply single
Unit is arranged in the two ends of described test stand；
Described lifting gear unit includes: lifting motor and clutch shaft bearing, during test, and lifter wheel to be tested
Case is arranged on one end of described test stand, the outfan of described lifting motor and described lifter wheel to be tested
The power shaft of case is in transmission connection, and the output shaft of described lifting tooth roller box to be tested can be turned by described clutch shaft bearing
It is arranged on described test stand dynamicly, the output shaft of described lifting tooth roller box to be tested is provided with to be tested defeated
Going out little gear, described output pinion to be tested is positioned at the inside of described test stand.
Described load applying unit includes: tests gear, test gear shaft, internal friction disc and fixes with ground
The external friction ring connected, the two ends of described test gear shaft are rotatable by the second bearing and the 3rd bearing respectively
Be arranged on the other end of described test stand, the first end of described test gear shaft stretches out described test stand
Sidewall also fixing with described internal friction disc is connected, and described internal friction disc cooperates with described external friction ring, institute
State internal friction disc and described external friction ring arranged concentric, and the outer ring of described internal friction disc and described external friction ring
Inner ring CONTACT WITH FRICTION, described test gear is arranged on described test gear shaft and described test gear is positioned at
In described test stand, during test, described test gear engages with described output pinion to be tested.
Specifically, described pilot system also includes: load adjustment device, and described load adjustment device includes bullet
Property parts, clamp nut and clamping screw, the inner ring surface of described external friction ring includes two inclined-planes of V-type,
And the tip on two described inclined-planes of V-type is towards the center of circle layout of described external friction ring, described internal friction disc bag
Include the first internal friction disc and the second internal friction disc, described first internal friction disc and described second internal friction disc respectively
It is arranged on the first end of described test gear shaft, and described first internal friction disc and described second internal friction disc
Sidewall matches with two inclined-planes of described external friction ring respectively, and one end of described clamping screw sequentially passes through institute
State the first internal friction disc and described second internal friction disc and threaded with described clamp nut, described elastic
The two ends of part are against on described second internal friction disc and described clamp nut respectively.
Further, described load adjustment device is six, and six described load adjustment device are along described first
The circumferencial direction of internal friction disc is uniform.
Further, the minimum outer diameter of described first internal friction disc and described second internal friction disc is all higher than described
The minimum diameter of external friction ring.
Specifically, described pilot system also includes: torque sensor, and described torque sensor is arranged on described
On the output shaft of lifting tooth roller box to be tested.
Specifically, described internal friction disc offers oil leab on the contact surface of described external friction ring, described
Offering the oilhole connected with described oil leab on second internal friction disc, described second internal friction disc sets
It is equipped with the oil filler plug for blocking described oilhole.
Specifically, described pilot system also includes: the first installing rack, the second installing rack, the first end cap and
Two end caps, on described test stand, the position of corresponding described second bearing is provided with the first installing rack, described test
On frame, the position of corresponding described 3rd bearing is provided with the second installing rack, and described second bearing and the 3rd bearing divide
It is not installed on described first installing rack and described second installing rack, the lateral wall of described first installing rack and institute
State and on the lateral wall of the second installing rack, be provided with opening, described opening is separately installed with described first end cap
With described second end cap, the second end of described test gear shaft is positioned at described first installing rack and described first end
In the space that lid is surrounded, the first end of described test gear shaft stretches out described second cover plate.
Further, gripper shoe, described second peace it are disposed with between described first installing rack and described test stand
Shelve and be disposed with reinforcing plate between described test stand.
Specifically, described pilot system also includes: the 3rd end cap and support ring, and the two ends of described support ring are divided
Be not against on the internal ring of described internal friction disc and described 3rd bearing, described 3rd end cap be arranged in described in rub
On the lateral wall of wiping dish, described 3rd end cap is fixed on the first end of described test gear shaft by bolts at axle end
On.
Specifically, on described test stand, the location arrangements of corresponding described clutch shaft bearing has clutch shaft bearing installing rack,
The outer shroud of described clutch shaft bearing is installed in described clutch shaft bearing installing rack.
The technical scheme that the embodiment of the present invention provides has the benefit that the tooth that the embodiment of the present invention provides
The pilot system of roller box long duration test, this pilot system is by starting lifting motor, and lifting motor drives to be waited to try
Test lifting tooth roller box and output pinion to be tested rotates, the test gear engaged with output pinion to be tested
Rotating together in company with output pinion to be tested, test gear drives external friction ring to rotate by test gear shaft,
Make between external friction ring and internal friction disc, to produce relative slip, adjust and rub between internal friction disc and external friction ring
The frictional force that inclined-plane is provided, the adjustment of this frictional force can be by changing between internal friction disc and external friction ring
Gap obtains, and specifically can change frictional force by the size changing internal friction disc and external friction ring, finally make
This frictional force matches with the nominal torque of output pinion to be tested, thus long at rated load lower tooth roller box
The operating of time, reaches the purpose of gear-box long duration test, and, this pilot system be overall structure without
Build, reduce cost of manufacture, meanwhile, improve the efficiency of the endurance quality detection of gear-box.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of the pilot system that the embodiment of the present invention provides；
Fig. 2 is the sectional view of the pilot system that the embodiment of the present invention provides；
Fig. 3 is the partial enlarged drawing of Fig. 2 that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiment
Embodiments provide the pilot system of a kind of gear-box long duration test, as depicted in figs. 1 and 2,
This pilot system includes: lifting gear unit, test stand 6 and load applying unit, lifting gear unit and
Load applying unit is arranged in the two ends of test stand 6.
Lifting gear unit includes: lifting motor 1 and clutch shaft bearing 5, during test, and lifting tooth roller box to be tested
On 2 one end being arranged on test stand 6, the output shaft of lifting motor 1 and the input of lifting tooth roller box 2 to be tested
Through-drive connects, and the output shaft of lifting tooth roller box 2 to be tested is installed in rotation on examination by clutch shaft bearing 5
Test on frame 6, the output shaft of lifting tooth roller box 2 to be tested is provided with output pinion 2a to be tested, waits to try
Test output pinion 2a and be positioned at the inside of test stand 6.
Load applying unit includes: tests gear 7, test gear shaft 8, internal friction disc 9 and fixes with ground
The external friction ring 10 connected, the two ends of test gear shaft 8 are respectively by the second bearing 11 and the 3rd bearing 12
Being installed in rotation on the other end of test stand 6, the first end of test gear shaft 8 stretches out test stand 6
Sidewall also fixing with internal friction disc 9 is connected, and internal friction disc 9 cooperates with external friction ring 10, internal friction disc
9 with external friction ring 10 arranged concentric, and the inner ring CONTACT WITH FRICTION of the outer ring of internal friction disc 9 and external friction ring 10,
Test gear 7 is arranged on test gear shaft 8 and test gear 7 is positioned at test stand 6, during test, and examination
Test gear 7 to engage with output pinion 2a to be tested.Specifically, test gear shaft 8 can be provided with axle
Shoulder, the internal ring of the second bearing 11 and the 3rd bearing 12 is installed on two shaft shoulders of test gear shaft 8 respectively.
Specifically, as it is shown on figure 3, this pilot system can also include: load adjustment device, load control
Device includes elastomeric element 13, clamp nut 14 and clamping screw 15, and the inner ring surface of external friction ring 10 includes
Two inclined-planes of V-type, and the tip on two inclined-planes of V-type is towards the center of circle layout of external friction ring 10, inside rubs
Wiping dish 9 includes the first internal friction disc 9a and the second internal friction disc 9b, rubs in the first internal friction disc 9a and second
Wiping dish 9b is separately mounted to test the first end of gear shaft 8, and the first internal friction disc 9a and the second internal friction
The sidewall of dish 9b matches with two inclined-planes of external friction ring 10 respectively, and one end of clamping screw 15 is worn successively
Cross the first internal friction disc 9a and the second internal friction disc 9b and threaded with clamp nut 14, elastomeric element 13
Two ends be against respectively on the second internal friction disc 9b and clamp nut 14.Wherein, elastomeric element 13 can be
Spring.By the regulation clamp nut 14 position on clamping screw 15, it is achieved regulation elastomeric element 13
The purpose of compression stress, thus change the distance between the first internal friction disc 9a and the second internal friction disc 9b, enter
And regulating the frictional force between internal friction disc 9 and external friction ring 10, in order to this assay device can be according to simulation
Preferably load.Additionally, when internal friction disc 9 and external friction ring 10 rub, internal friction disc 9 and external friction
Ring 10 may reduce frictional force because of abrasion, can adjust internal friction disc 9 in time by this load adjustment device
Frictional force with external friction ring 10, it is ensured that this frictional force can reach requirement.
Further, load adjustment device can be six, and six load adjustment device are along the first internal friction disc
The circumferencial direction of 9a is uniform.Multiple load adjustment device ensure that the motion of internal friction disc 9 is more steady.
Further, internal friction disc 9 offers oil leab 16 on the contact surface of external friction ring 10, inside rubs
Offer the oilhole 17 connected with oil leab 16 on wiping dish 9, internal friction disc 9 is provided with for sealing
The oil filler plug 18 of stifled oilhole 17.Wherein, oil leab 16 can be opened in the first internal friction disc respectively
On 9a and the second internal friction disc 9b, oil leab 16 can rub respectively along the first internal friction disc 9a and second
Circumferentially, oilhole 17 and oil filler plug 18 all can be arranged on the second internal friction disc 9b to wiping dish 9b
On, by oilhole 17 to oil leab 16 internal injection lubricating oil, lubricating oil can be along oil duct cloth
Full whole internal friction disc 9 and the rubbing surface of external friction ring 10, thus prevent internal friction disc 9 and external friction ring 10
When relatively sliding, rubbing surface damages, and lubricating oil can be closed by oil filler plug 18 after filling it up with, and prevents lubrication
Oil leakage.
Further, the minimum outer diameter of the first internal friction disc 9a and the second internal friction disc 9b is all higher than external friction
The minimum diameter of ring 10.So, internal friction disc 9 is relatively big with the contact surface of external friction ring 10, works as internal friction
After the friction surface wear of dish 9 and external friction ring 10 produces gap, by regulation internal friction disc 9 and can rub outward
Wipe the gap between ring 10, make both CONTACT WITH FRICTION again, thus take full advantage of internal friction disc 9 and rub outward
Wipe ring 10.
Specifically, this pilot system can also include: torque sensor (not shown), and torque sensor is pacified
It is contained on the output shaft of lifting tooth roller box 2 to be tested.Torque sensor can be real-time monitor to be tested defeated
Go out the moment of torsion of little gear 2a, need to carry by the inclined-plane that rubs between regulation internal friction disc 9 and external friction ring 10
The frictional force of confession so that this frictional force can match with the moment of torsion of output pinion 2a to be tested.
Specifically, this pilot system can also include: first installing rack the 19, second installing rack the 20, first end
Lid 21 and the second end cap 22, on test stand 6, the position of corresponding second bearing 11 is provided with the first installing rack 19,
On test stand 6, the position of corresponding 3rd bearing 12 is provided with the second installing rack 20, the second bearing 11 and the 3rd
Bearing 12 is installed on the first installing rack 19 and the second installing rack 20 respectively, the outside of the first installing rack 19
It is provided with opening on the lateral wall of wall and the second installing rack 20, opening is separately installed with the first end cap 21
With the second end cap 22, the second end of test gear shaft 8 is positioned at the first installing rack 19 and the first end cap 21 is enclosed
In the space become, the first end of test gear shaft 8 stretches out the second cover plate 22.First end cap 21 and the second end cap
22 all can be arranged on opening by fixing bolt 29, and the first end cap 21 and the second end cap 22 can be easy to
User changes the second bearing 11 and the 3rd bearing 12.
Further, gripper shoe 23, the second installing rack it are disposed with between the first installing rack 19 and test stand 6
Reinforcing plate 24 it is disposed with between 20 and test stand 6.Gripper shoe 23 and reinforcing plate 24 can improve pilot system
Stability.
Specifically, this pilot system can also include: the 3rd end cap 25 and support ring 26, support ring 24
Two ends are against on the internal ring of internal friction disc 9 and the 3rd bearing 12 respectively, and the 3rd end cap 25 is arranged in internal friction
On the lateral wall of dish 9, the 3rd end cap 25 is fixed on the first end of test gear shaft 8 by bolts at axle end 27
On.By the 3rd end cap 25 and support ring 26, preferably internal friction disc 9 can be fixed on test gear shaft 8
The first end on.
Specifically, on test stand 6, the location arrangements of corresponding clutch shaft bearing 5 has clutch shaft bearing installing rack 6a.The
The outer shroud of one bearing 5 is installed in clutch shaft bearing installing rack 6a.The internal ring of clutch shaft bearing 5 is arranged on to be tested
On the output shaft of lifting tooth roller box 2, clutch shaft bearing installing rack 6a can firmly fix clutch shaft bearing 5, anti-
Only clutch shaft bearing 5 shifts.
Further, the sidewall of test stand 6 is also provided with matching with lifting tooth roller box 2 to be tested
Gear-box installing rack 6b, lifting tooth roller box 2 to be tested is arranged in gear-box installing rack 6b, gear-box pacify
Shelve 6b to be prevented from lifting tooth roller box 2 to be tested and shift.Additionally, gripper shoe 23 can be arranged in test
Between sidewall and the sidewall of gear-box installing rack 6b of frame 6, gripper shoe 23 can also be arranged in sidewall gear
Between sidewall and the sidewall of the first installing rack 19 of case installing rack 6b.Reinforcing plate 24 can be arranged in the second peace
Shelve between the sidewall of 20 and the sidewall of the first gear shaft installing rack 6a.
Specifically, test stand 6 can be fixed with ground by fot screw 28.
The pilot system of the gear-box long duration test that the embodiment of the present invention provides, this pilot system rises by starting
Fall motor, lifting motor drives lifting tooth roller box to be tested and output pinion to be tested to rotate, with to be tested
The test gear of output pinion engagement rotates together in company with output pinion to be tested, and test gear is by examination
Testing gear shaft drives external friction ring to rotate, and makes to produce relative slip between external friction ring and internal friction disc, adjusts
The frictional force that between internal friction disc and external friction ring, friction inclined-plane is provided, the adjustment of this frictional force can be by changing
Become the gap between internal friction disc and external friction ring to obtain, specifically can be by changing internal friction disc and external friction ring
Size change frictional force, finally make this frictional force match with the nominal torque of output pinion to be tested,
Thus operate for a long time at rated load lower tooth roller box, reach the purpose of gear-box long duration test, and,
This pilot system be overall structure without building, reduce cost of manufacture, meanwhile, improve the resistance to of gear-box
The efficiency of performance detection for a long time.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. the pilot system of a gear-box long duration test, it is characterised in that described pilot system includes: rise
Fall gear unit, test stand (6) and load applying unit, described lifting gear unit and described load apply
Unit is arranged in the two ends of described test stand (6)；
Described lifting gear unit includes: lifting motor (1) and clutch shaft bearing (5), during test, to be tested
Lifting tooth roller box (2) is arranged on one end of described test stand (6), the output of described lifting motor (1)
Axle is in transmission connection with the power shaft of described lifting tooth roller box (2) to be tested, described lifting tooth roller box (2) to be tested
Output shaft be installed in rotation on described test stand (6) by described clutch shaft bearing (5), described in treat
On the output shaft of test lifting tooth roller box (2), output pinion to be tested (2a) is installed, described to be tested
Output pinion (2a) is positioned at the inside of described test stand (6)；
Described load applying unit includes: test gear (7), test gear shaft (8), internal friction disc (9)
With the external friction ring (10) being fixedly connected with the ground, the two ends of described test gear shaft (8) are respectively by the
Two bearings (11) and the 3rd bearing (12) are installed in rotation on the other end of described test stand (6),
First end of described test gear shaft (8) stretch out described test stand (6) sidewall and with described internal friction disc
(9) fixing connection, described internal friction disc (9) cooperates with described external friction ring (10), described interior
Frictional disk (9) and described external friction ring (10) arranged concentric, and the outer ring of described internal friction disc (9) with
The inner ring CONTACT WITH FRICTION of described external friction ring (10), described test gear (7) is arranged on described test gear
Axle (8) is above and described test gear (7) is positioned at described test stand (6), during test, and described test tooth
Wheel (7) engages with described output pinion to be tested (2a).
Pilot system the most according to claim 1, it is characterised in that described pilot system also includes:
Load adjustment device, described load adjustment device includes elastomeric element (13), clamp nut (14) and locking
Bolt (15), the inner ring surface of described external friction ring (10) includes two inclined-planes of V-type, and the two of V-type
The tip on individual described inclined-plane is arranged towards the center of circle of described external friction ring (10), and described internal friction disc (9) wraps
Include the first internal friction disc (9a) and the second internal friction disc (9b), described first internal friction disc (9a) and described
Second internal friction disc (9b) is separately mounted to the first end of described test gear shaft (8), and in described first
The sidewall of frictional disk (9a) and described second internal friction disc (9b) respectively with described external friction ring (10)
Two described inclined-plane correspondences match, and rub in sequentially passing through described first in one end of described clamping screw (15)
Wiping dish (9a) and described second internal friction disc (9b) are also threadeded with described clamp nut (14), institute
The two ends stating elastomeric element (13) are against described second internal friction disc (9b) and described clamp nut (14) respectively
On.
Pilot system the most according to claim 2, it is characterised in that described load adjustment device is six
Individual, six described load adjustment device are evenly arranged along the circumferencial direction of described first internal friction disc (9a).
Pilot system the most according to claim 2, it is characterised in that described first internal friction disc (9a)
With the minimum diameter that the minimum outer diameter of described second internal friction disc (9b) is all higher than described external friction ring (10).
Pilot system the most according to claim 2, it is characterised in that described pilot system also includes:
Torque sensor, described torque sensor is arranged on the output shaft of described lifting tooth roller box (2) to be tested.
Pilot system the most according to claim 1, it is characterised in that described internal friction disc (9)
With offer oil leab (16), described internal friction disc (9) on the contact surface of described external friction ring (10)
Card on offer the oilhole (17) connected with described oil leab (16), described internal friction disc (9)
Card on be provided with the oil filler plug (18) for blocking described oilhole (17).
Pilot system the most according to claim 1, it is characterised in that described pilot system also includes:
First installing rack (19), the second installing rack (20), the first end cap (21) and the second end cap (22), described
The position of upper corresponding described second bearing (11) of test stand (6) is provided with the first installing rack (19), described
The position of upper corresponding described 3rd bearing (12) of test stand (6) is provided with the second installing rack (20), described
Second bearing (11) and the 3rd bearing (12) correspondence respectively are installed on described first installing rack (19) and institute
State on the second installing rack (20), the lateral wall of described first installing rack (19) and described second installing rack (20)
Lateral wall on be provided with opening, on two described openings, correspondence is provided with described first end cap (21) respectively
With described second end cap (22), the second end of described test gear shaft (8) is positioned at described first installing rack (19)
In the space surrounded with described first end cap (21), the first end of described test gear shaft (8) stretches out institute
State the second cover plate (22).
Pilot system the most according to claim 7, it is characterised in that described first installing rack (19)
And it is disposed with gripper shoe (23), described second installing rack (20) and described examination between described test stand (6)
Test and between frame (6), be disposed with reinforcing plate (24).
Pilot system the most according to claim 1, it is characterised in that described pilot system also includes:
3rd end cap (25) and support ring (26), the two ends of described support ring (24) are against described internal friction respectively
On the internal ring of dish (9) and described 3rd bearing (12), described 3rd end cap (25) be arranged in described in rub
On the lateral wall of wiping dish (9), described 3rd end cap (25) is fixed on described examination by bolts at axle end (27)
Test on the first end of gear shaft (8).
Pilot system the most according to claim 1, it is characterised in that described test stand (6) is upper right
The location arrangements answering described clutch shaft bearing (5) has clutch shaft bearing installing rack (6a), described clutch shaft bearing (5)
Outer shroud be installed on described clutch shaft bearing installing rack (6a) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334638.8A CN106017916B (en) | 2016-05-19 | 2016-05-19 | A kind of pilot system of gear-box endurance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334638.8A CN106017916B (en) | 2016-05-19 | 2016-05-19 | A kind of pilot system of gear-box endurance test |
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| Publication Number | Publication Date |
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| CN106017916A true CN106017916A (en) | 2016-10-12 |
| CN106017916B CN106017916B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610334638.8A Active CN106017916B (en) | 2016-05-19 | 2016-05-19 | A kind of pilot system of gear-box endurance test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101824A (en) * | 2017-05-03 | 2017-08-29 | 东莞市纽格尔行星传动设备有限公司 | A kind of planetary reducer torque detecting apparatus |
| CN107101824B (en) * | 2017-05-03 | 2019-02-12 | 深圳市合发齿轮机械有限公司 | A kind of planetary reducer torque detecting apparatus |
| CN112557025A (en) * | 2020-12-07 | 2021-03-26 | 上海交通大学 | Planetary gear test bench for simulating multi-working-condition environment and working method |
| CN112557025B (en) * | 2020-12-07 | 2022-09-13 | 上海交通大学 | Planetary gear test bench for simulating multi-working-condition environment and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106017916B (en) | 2018-09-25 |
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