CN108168873B - Distance rod endurance test bed - Google Patents
Distance rod endurance test bed Download PDFInfo
- Publication number
- CN108168873B CN108168873B CN201810230049.4A CN201810230049A CN108168873B CN 108168873 B CN108168873 B CN 108168873B CN 201810230049 A CN201810230049 A CN 201810230049A CN 108168873 B CN108168873 B CN 108168873B
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- oil cylinder
- beat
- distance rod
- support
- axially loaded
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Distance rod endurance test bed of the invention, including support A, support B, axial test device, beat experimental rig and crane torsion test device；Torsion experiment device includes the torsion force snesor that twisting resistance lifter plate, torsion oil cylinder, the torsional displacement sensor being arranged on twisting resistance lifter plate and measurement distance rod bear twisting resistance size；Axial experimental provision includes the axial force transducer of axially loaded oil cylinder, axially loaded oil cylinder mounting plate, the shaft position sensor for measuring distance rod axial displacement and the axially loaded axially loaded power size of oil cylinder of measurement；Beat experimental rig includes two connecting rods, beat oil cylinder, the beat displacement sensor and beat force snesor for measuring the displacement of distance rod beat；Testing stand of the invention makes thrust rod twisting, beat, axial three directions carry out the movement of single or any combination, be that distance rod is easy for installation, can rapidly and efficiently test distance rod performance.
Description
Technical field
The invention belongs to auto parts and components technical field of test equipment, are to be related to a kind of heavy goods vehicles thrust more specifically
The durability test equipment of bar
Background technique
The one kind of automobile as the existing vehicles brings many convenience in the trip to the mankind, but because of the friendship of its initiation
Interpreter thus also to the life of the mankind and property bring greatly threaten and injury.Therefore, the security performance of automobile has become vapour
The topic that depot quotient, consumer, government department pay high attention to.Heavy goods vehicles mainly apply to commercialization haul goods, logistics etc., heavy goods vehicles exist
Uneven road or in automobile turning when driving, middle rear axle can lead to the problem of left and right displacement, will lead to leaf spring and tire friction,
It will lead to the severe accident that tire wear even ruptures when serious；Why distance rod has important work on the suspension of heavy truck chassis
With, on the one hand it play the role of transmit tractive force, brake force and its moment of reaction, on the other hand also achieve vehicle frame and
The positioning of vehicle bridge, it is ensured that the safety and stability of vehicle driving.Therefore the durability test of distance rod is just particularly important.
1, the stress that current producer can only carry out single direction to distance rod is tested, and cannot embodying automobile, distance rod is each at runtime
The active force state in direction；2, power effect can be generated when carrying out single test at present to the external world, is easy to break fixture when in use,
There are security risks；
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to carry out thrust rod twisting, beat, axial three directions
The movement of single or any combination keeps distance rod easy for installation, and the distance rod that can rapidly and efficiently test distance rod performance is resistance to
Long property testing stand.
Solve the problems, such as techniques discussed above, the technical scheme adopted by the invention is as follows:
Distance rod endurance test bed, including support A, support B, axial test device, beat experimental rig and torsion examination
Experiment device；The crane torsion test device includes twisting resistance lifter plate, reverses oil cylinder, the torsiversion being arranged on twisting resistance lifter plate
Displacement sensor and measurement distance rod bear the torsion force snesor of twisting resistance size；The axial test device includes axially loaded
Oil cylinder, axially loaded oil cylinder mounting plate, the shaft position sensor for measuring distance rod axial displacement and the axially loaded oil cylinder of measurement
The axial force transducer of axially loaded power size；The beat experimental rig includes two connecting rods, beat oil cylinder, measurement distance rod
The beat displacement sensor of beat displacement and the beat force snesor of measurement beat oil cylinder beat loading force size；The support A
On be provided with beat support base；The track A that beat support base horizontally slips is provided on the left and right directions of support A, in beat
The track B that axially loaded oil cylinder mounting plate slides back and forth on it is provided on support base front-rear direction；
The support A and support B correspondence are arranged；Guide rail, the twisting resistance lifting are vertically arranged on the support B
Plate is slidably arranged on guide rail, and the top of the telescopic rod of the torsion oil cylinder is connected by torsion force snesor and twisting resistance lifter plate
Connect, by torsion oil cylinder drive lifter plate on guide rail vertical sliding to forming thrust torsion of bar；
Twisting resistance lifter plate is mounted on support B, is connected using guide rail, and due to power closed loop, support B does not stress with guide rail,
Guide rail only serves the guiding role to move up and down vertically, securely and reliably.
The axially loaded oil cylinder mounting plate is opposite with twisting resistance lifter plate, and the axially loaded oil cylinder is fixed at axis
To on load cylinder mounting plate；The distance rod is clamped between axially loaded oil cylinder mounting plate and twisting resistance lifter plate,
One end is connected with twisting resistance lifter plate, and the other end passes through the top phase of axial force transducer and axially loaded oil cylinder telescopic rod
To setting；
Two connecting rods and distance rod are arranged in parallel in the two sides of distance rod, and the both ends of the connecting rod pass through universal respectively
Section is connected with twisting resistance lifter plate and axially loaded oil cylinder mounting plate, two connecting rods, twisting resistance lifter plate and axially loaded oil cylinder
Mounting plate forms force-closed parallelogram；The telescopic rod of the beat oil cylinder is connect with beat support base, passes through beat oil
Cylinder drives the beat support base side-to-side movement to drive axially loaded oil cylinder mounting plate to horizontally slip to form distance rod beat；
The side of track A is arranged in the beat displacement sensor, and the end of beat oil cylinder telescopic rod is arranged in the beat force snesor
Between portion and beat support base.
Axially loaded oil cylinder is mounted on axially loaded oil cylinder mounting plate, and axially loaded oil cylinder mounting plate is mounted on track B
On, it can be moved forward and backward along track B；Beat support base is mounted on track A, can be horizontally slipped；Above and below torsion lifter plate
When movement, the connecting rods of two sides, distance rod tilted upward are in vertical direction with certain angle, and distance rod projects in the horizontal direction at this time
It shortens, axially loaded oil cylinder mounting plate can be moved forward and backward along track B to compensate the shortening of its projection at this time.When beat oil cylinder
Telescopic rod drives beat support base along when track A side-to-side movement, and two sides connecting rod, distance rod are in horizontal plane and current location at one
Clamp angle, distance rod projects shorten in the horizontal direction at this time, and axially loaded oil cylinder mounting plate can be along fortune before and after track B at this time
It moves to compensate the shortening of its projection.When beat and torsion move simultaneously, the projection for compensation distance rod in level shortens, axial to add
Oil cylinder mounting plate is carried to move forward and backward along track B；Beat oil cylinder drives beat support base to deflect movement simultaneously, adds because axial
Oil cylinder mounting plate is carried also to deflect together on the beat support base by track B movement, therefore axially loaded oil cylinder mounting plate
Actual movement is: moving forward and backward along track A, while the side-to-side movement together with beat support base；It is a compound motion mistake
Journey.
Connecting rod use double Hooke's joint structure, can also be swung while bearing axially loaded power, thus axial direction into
Beat and torsion test can be carried out simultaneously when row load, and are independent of each other；After the length for regulating connecting rod, distance rod is put into
Lock-screw between fixture A and fixture B, it is quick and easy for installation.
Axially loaded oil cylinder is arranged on axially loaded oil cylinder mounting plate, and axially loaded oil cylinder mounting plate bottom uses straight line
Track B support, when beat and twist motion, distance rod projection in the horizontal direction shortens, this track is solely subjected to axially loaded
The guiding role that oil cylinder mounting plate gravity and axially loaded oil cylinder mounting plate move forward and backward.
Further, fixture includes the fixture A and fixture B for clamping distance rod；The fixture A setting is stretched in axially loaded oil cylinder
The middle part of twisting resistance lifter plate is arranged in the end that contracting bar stretches out, the fixture B；One end of the distance rod by fixture B with
Torsion lifter plate is fixedly connected；Its other end is fixedly connected by fixture A with the end of axially loaded oil cylinder telescopic rod.
Further, the distance rod is H-type, and both ends are respectively arranged with mounting hole, are provided with and pacify on corresponding fixture
The corresponding threaded hole in hole is filled, is realized by mutual corresponding mounting hole on screw and distance rod and threaded hole locking mutually solid
It is fixed.
Further, the torsion oil cylinder is fixed on vertically on support B, and telescopic rod is arranged straight down.
Further, the guide rail being arranged on support B is two.
Further, the support B is L-type support.
Further, the connecting rod passes through adjustable threaded connection.
Further, the support A and support B is arranged on the table.
It further, further include push-pull device at fixed；The push-pull device at fixed is connected with support B adjusts the spacing of support A and support B
From；The slidable sliding groove of support B is provided on the workbench along the longitudinal direction.
Distance rod is acted on using Hydrauservo System, oil cylinder is as actuator, to generate system external
Power effect, this patent act on distance rod using force-closed form；Axially loaded power transmission path are as follows: axially loaded oil
Cylinder moves applied force on distance rod, while the power on distance rod is transmitted on twisting resistance lifter plate, and twisting resistance lifter plate again will
Power is transmitted on two end links, and two end links transfer back to axially loaded oil cylinder mounting plate again and return on axially loaded oil cylinder, by
This forms force-closed mode.In beat or torsion, since for parallelogram sturcutre, axially loaded oil cylinder will not be with beat
And it reverses and generates striction phenomenon.Simultaneously as axially loaded power is internal force, have deflection angle or windup-degree the case where
Under, axially loaded power will not generate any component to the direction of motion of beat oil cylinder and torsion oil cylinder.Beat and torsion oil cylinder are only
It is subjected only to each joint-friction power, distance rod deformation force, inertia force and moving component gravity.
Twisting resistance lifter plate vertical motion generates torsion to distance rod, and axially loaded oil cylinder side-to-side movement generates distance rod
Beat, axially loaded oil cylinder load distance rod；All installing force and displacement sensor, three directions are transported on this three directions
Power size when dynamic, displacement can be carried out setting, and monitor；Once being more than setting value, stop running immediately, guarantees safety.
Using technical solution of the present invention, following remarkable result can be obtained:
1) distance rod testing equipment of the present invention, it is only necessary to which distance rod itself can be carried out testing, and be not required to real vehicle peace
Dress, and structure is simple, the case where when not needing complicated mechanical structure, while can run to greatest extent close to real vehicle.
2) any effect can be carried out to three directions of distance rod using the present invention, the compound motion of real vehicle can be met,
Single direction test can also be carried out, test of other equipment to this product can be covered.
Detailed description of the invention
Brief description is made to content expressed by each attached drawing of this specification and the label in figure below:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the enlarged drawing in Fig. 2 at A；
Wherein: 1, support A；2, support B；31, twisting resistance lifter plate；32, oil cylinder is reversed；33, torsional displacement sensor；
34, force snesor is reversed；35, guide rail；41, axially loaded oil cylinder；42, axially loaded oil cylinder mounting plate；43, axial displacement passes
Sensor；44, axial force transducer；51, connecting rod；52, beat oil cylinder；53, beat displacement sensor；54, beat force snesor；
61, fixture A；62, fixture B；7, distance rod；8, workbench；81, sliding groove；9, push-pull device at fixed；10, beat support base；11, rail
Road A；12, track B.
Specific embodiment
Providing some infinite embodiments with reference to the accompanying drawing, the invention will be further elaborated.But it should manage
Solution, these descriptions are only exemplary, and are not intended to limit the scope of the invention.In addition, in the following description, being omitted to known
The description of structure and technology, so as not to unnecessarily obscure the concept of the present invention.
As shown in Figure 1, 2, 3,7 endurance test bed of distance rod, including support A1, support B2, axial test device, beat
Experimental rig and crane torsion test device；The crane torsion test device includes twisting resistance lifter plate 31, torsion oil cylinder 32, is arranged and is turning round
Turn the torsion force snesor 34 that torsional displacement sensor 33 and the measurement distance rod 7 on power lifter plate 31 bear twisting resistance size；
The axial test device includes axially loaded oil cylinder 41, axially loaded oil cylinder mounting plate 42, measurement 7 axial displacement of distance rod
The axial force transducer 44 of shaft position sensor 43 and the measurement axially loaded power size of axially loaded oil cylinder 41；The beat examination
Experiment device includes that two connecting rods 51, beat oil cylinder 52, the beat displacement sensor 53 of measurement 7 beat of distance rod displacement and measurement are inclined
Put the beat force snesor 54 of 52 beat loading force size of oil cylinder；As shown in figure 3, being provided with beat support base on the support A1
10；The track A11 that beat support base 10 horizontally slips is provided on the left and right directions of support A1, in 10 front and back of beat support base
The track B12 that axially loaded oil cylinder mounting plate 42 slides back and forth on it is provided on direction；
The support A1 and support B2 correspondence are arranged；Guide rail 35, the torsion are vertically arranged on the support B2
Power lifter plate 31 is slidably arranged on guide rail 35, it is described torsion oil cylinder 32 telescopic rod top by torsion force snesor 34 with
Twisting resistance lifter plate 31 connects, by torsion oil cylinder 32 drive lifter plate on guide rail 35 vertical sliding to forming distance rod 7
Torsion；
The axially loaded oil cylinder mounting plate 42 is opposite with twisting resistance lifter plate 31, and the axially loaded fixation of oil cylinder 41 is set
It sets on axially loaded oil cylinder mounting plate 42；The distance rod 7 is clamped to axially loaded oil cylinder mounting plate 42 and twisting resistance
Between lifter plate 31, one end is connected with twisting resistance lifter plate 31, the other end by axial force transducer 44 with it is axially loaded
The top of 41 telescopic rod of oil cylinder is oppositely arranged；
As shown in Figure 2,3, two connecting rods 51 and distance rod 7 are arranged in parallel in the two sides of distance rod 7, the connecting rod 51
Both ends pass through universal joint respectively and be connected with twisting resistance lifter plate 31 and axially loaded oil cylinder mounting plate 42, two connecting rods 51 are turned round
Turn power lifter plate 31 and axially loaded oil cylinder mounting plate 42 forms force-closed parallelogram；The beat oil cylinder 52 stretches
Bar is connect with beat support base 10, drives 10 side-to-side movement of beat support base by beat oil cylinder 52 to drive axial add
Oil cylinder mounting plate 42 is carried to horizontally slip to form 7 beat of distance rod；The beat displacement sensor 53 is arranged in the one of track A11
Side, the beat force snesor 54 are arranged between the end and beat support base 10 of 52 telescopic rod of beat oil cylinder.
As shown in Figure 1, the fixture includes the fixture A61 and fixture B62 for clamping distance rod 7；The fixture A61 setting exists
The middle part of twisting resistance lifter plate 31 is arranged in the end that axially loaded 41 telescopic rod of oil cylinder stretches out, the fixture B62；The thrust
One end of bar 7 is fixedly connected by fixture B62 with torsion lifter plate；Its other end passes through fixture A61 and axially loaded oil cylinder 41
The end of telescopic rod is fixedly connected.The distance rod 7 is H-type, and both ends are respectively arranged with mounting hole, are provided on corresponding fixture
Threaded hole corresponding with mounting hole locks to realize with mutual corresponding mounting hole on distance rod 7 by screw with threaded hole
It is fixed to each other, the torsion oil cylinder 32 is fixed on vertically on support B2, and telescopic rod is arranged straight down.It is arranged on support B2
Guide rail 35 be two.The support B2 is L-type support.The connecting rod 51 passes through adjustable threaded connection.The support A1
It is arranged on workbench 8 with support B2.
It further include push-pull device at fixed 9；The push-pull device at fixed 9 is connected with support B2 adjusts distance between support A1 and support B2；
The slidable sliding groove 81 of support B2 is provided on the workbench 8 along the longitudinal direction.
7 endurance test bed of distance rod of the invention, equipment is in force-closed state when test, and can carry out simultaneously
It is tested while under three different conditions；The clamping of distance rod 7 is identical with real vehicle assembly method, and assembles simply, by it
Corresponding screw hole loads onto screw；The durability test in three directions can be carried out independently, can also be carried out, may be used also simultaneously
It is run with combination of two；51 both ends of connecting rod of power closed loop are formed by the way of universal joint, can both be swung, while swinging
It can also bear axial force；Each direction of motion is effectively monitored with displacement sensor, can carry out Bit andits control, can also be into
The control of row power；Two sides connecting rod 51 is to be threadedly coupled, adjustable screw thread, and it is different in a certain range to meet to change 51 length of connecting rod
The installation of length distance rod 7；Axially loaded oil cylinder 41 is mounted on the axially loaded oil cylinder mounting plate 42 that one can move forward and backward,
When distance rod 7 carries out beat and torsion, the projection of horizontal direction is shortened, and axially loaded oil cylinder mounting plate 42 can carry out front and back
Movement carries out bit shift compensation.Entire mechanism kinematic is driven using hydraulic cylinder.
The principle of the present invention are as follows:
It opens after oil pump enters program and is increased to twisting resistance lifter plate 31 and axially loaded 42 center of oil cylinder mounting plate height
It spends equal, then axially loaded oil cylinder mounting plate 42 is adjusted to opposite with the center support B2.It adjusts 51 length of connecting rod and makes support
B2 and axially loaded oil cylinder mounting plate 42 enable distance rod 7 to be normally put between fixture, connecting rod 51 are installed apart from suitable
Afterwards, connecting rod 51 is kept horizontality with torsion oil cylinder 32 by adjustment beat oil cylinder 52 as far as possible, then distance rod 7 is packed into and is locked i.e.
It can be tested.
The above embodiment is interpreted as being merely to illustrate the utility model rather than limits the guarantor of the utility model
Protect range.Read the utility model record content after, technical staff the utility model can be made it is various change or
Modification, these equivalence changes and modification equally fall into the utility model patent and require limited range.
Claims (9)
1. distance rod endurance test bed, which is characterized in that including support A, support B, axial test device, beat experimental rig
And crane torsion test device；
The crane torsion test device includes twisting resistance lifter plate, reverses oil cylinder, the torsional displacement being arranged on twisting resistance lifter plate
Sensor and measurement distance rod bear the torsion force snesor of twisting resistance size；
The axial test device includes axially loaded oil cylinder, axially loaded oil cylinder mounting plate, measurement distance rod axial displacement
Shaft position sensor and the axial force transducer for measuring the axially loaded axially loaded power size of oil cylinder；
The beat experimental rig includes two connecting rods, beat oil cylinder, the beat displacement sensor for measuring the displacement of distance rod beat
With the beat force snesor of measurement beat oil cylinder beat loading force size；
Beat support base is provided on the support A；It is provided with what beat support base horizontally slipped on the left and right directions of support A
Track A is provided with the track B that axially loaded oil cylinder mounting plate slides back and forth on it on beat support base front-rear direction；
The support A and support B correspondence are arranged；Guide rail is vertically arranged on the support B, the twisting resistance lifter plate is sliding
Dynamic to be arranged on guide rail, the top of the telescopic rod of the torsion oil cylinder is connect by reversing force snesor with twisting resistance lifter plate,
By torsion oil cylinder drive lifter plate on guide rail vertical sliding to forming thrust torsion of bar；
The axially loaded oil cylinder mounting plate is opposite with twisting resistance lifter plate, and the axially loaded oil cylinder is fixed at axial add
It carries on oil cylinder mounting plate；The distance rod is clamped between axially loaded oil cylinder mounting plate and twisting resistance lifter plate, one
End is connected with twisting resistance lifter plate, and the other end is set by the way that axial force transducer is opposite with the top of axially loaded oil cylinder telescopic rod
It sets；
Two connecting rods and distance rod are arranged in parallel in the two sides of distance rod, the both ends of the connecting rod pass through respectively universal joint with
Twisting resistance lifter plate is connected with axially loaded oil cylinder mounting plate, two connecting rods, twisting resistance lifter plate and the installation of axially loaded oil cylinder
Plate forms force-closed parallelogram；The telescopic rod of the beat oil cylinder is connect with beat support base, passes through beat oil cylinder band
The beat support base side-to-side movement is moved to drive axially loaded oil cylinder mounting plate to horizontally slip to form distance rod beat；It is described
Beat displacement sensor is arranged in the side of track A, the beat force snesor be arranged in the end of beat oil cylinder telescopic rod with
Between beat support base.
2. distance rod endurance test bed as described in claim 1, which is characterized in that fixture includes the fixture for clamping distance rod
A and fixture B；The end that axially loaded oil cylinder telescopic rod stretches out is arranged in the fixture A, and the fixture B is arranged in twisting resistance liter
The middle part of plate drops；One end of the distance rod is fixedly connected by fixture B with torsion lifter plate；Its other end by fixture A with
The end of axially loaded oil cylinder telescopic rod is fixedly connected.
3. distance rod endurance test bed as claimed in claim 2, which is characterized in that the distance rod is H-type, both ends point
Be not provided with mounting hole, be provided with threaded hole corresponding with mounting hole on corresponding fixture, by screw with it is mutual right on distance rod
The mounting hole answered locks to realize and be fixed to each other with threaded hole.
4. distance rod endurance test bed as described in claim 1, which is characterized in that the torsion oil cylinder is fixed on branch vertically
On seat B, telescopic rod is arranged straight down.
5. distance rod endurance test bed as described in claim 1, which is characterized in that the guide rail being arranged on support B is two
Item.
6. distance rod endurance test bed as described in claim 1, which is characterized in that the support B is L-type support.
7. distance rod endurance test bed as described in claim 1, which is characterized in that the connecting rod passes through adjustable screw thread
Connection.
8. distance rod endurance test bed as described in claim 1, which is characterized in that the support A and support B is arranged in work
Make on platform.
9. distance rod endurance test bed as claimed in claim 8, which is characterized in that further include push-pull device at fixed；The push-and-pull
Device is connected with support B adjusts distance between support A and support B；Being provided with support B on the workbench along the longitudinal direction can slide
Dynamic sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230049.4A CN108168873B (en) | 2018-03-20 | 2018-03-20 | Distance rod endurance test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230049.4A CN108168873B (en) | 2018-03-20 | 2018-03-20 | Distance rod endurance test bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108168873A CN108168873A (en) | 2018-06-15 |
| CN108168873B true CN108168873B (en) | 2019-09-10 |
Family
ID=62512095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230049.4A Active CN108168873B (en) | 2018-03-20 | 2018-03-20 | Distance rod endurance test bed |
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| CN (1) | CN108168873B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987478B (en) * | 2019-12-30 | 2021-06-01 | 烟台辰宇汽车部件有限公司 | Thrust rod testing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19745671C1 (en) * | 1997-10-17 | 1999-05-06 | Porsche Ag | Method and device for thermoelastic stress analysis on vehicle wheels |
| CN1737520A (en) * | 2004-08-17 | 2006-02-22 | 孙天日 | Automobile thrust rod model experiment device |
| CN201107184Y (en) * | 2007-11-15 | 2008-08-27 | 东风汽车有限公司 | Automobile V-shaped thrust rod assembly simulation test device |
| CN101995332B (en) * | 2010-09-29 | 2015-08-19 | 黄衍国 | Thrust rod bench simulating fatigue testing machine |
| CN103616303B (en) * | 2013-12-02 | 2015-12-30 | 北京乐冶液压气动设备技术有限公司 | Tension and compression and twisting vibration fatigue experimental device |
| CN204882068U (en) * | 2015-05-05 | 2015-12-16 | 上海理工大学 | Constant velocity cardan joint transmission shaft detection ware |
| CN107036826B (en) * | 2017-04-13 | 2019-05-31 | 华中科技大学 | A kind of low-power consumption duplex transmission shaft load test mechanism |
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Address after: 401122 building C, block a, comprehensive R & D building, No. 9, Jinyu Avenue, northern New District, Yubei District, Chongqing Patentee after: Chongqing Kairui testing equipment Co.,Ltd. Patentee after: China Automotive Engineering Research Institute Co.,Ltd. Address before: 401121 No.9 Jinyu Avenue, new North District, Chongqing Patentee before: CHONGQING CAERI AUTOMOBILE TEST EQUIPMENT DEVELOPMENT Co.,Ltd. Patentee before: China Automotive Engineering Research Institute Co.,Ltd. |