CN106769096A - Semitrailer saddle-type traction base testing stand and its test method - Google Patents

Semitrailer saddle-type traction base testing stand and its test method Download PDF

Info

Publication number
CN106769096A
CN106769096A CN201611228206.5A CN201611228206A CN106769096A CN 106769096 A CN106769096 A CN 106769096A CN 201611228206 A CN201611228206 A CN 201611228206A CN 106769096 A CN106769096 A CN 106769096A
Authority
CN
China
Prior art keywords
pressure device
platform
traction seat
traction
support frame
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.)
Granted
Application number
CN201611228206.5A
Other languages
Chinese (zh)
Other versions
CN106769096B (en
Inventor
吴志强
吴淑敏
肖海
马光飞
宋新凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Fuhua Machinery Equipment Manufacturing Co Ltd
Original Assignee
Guangdong Fuhua Machinery Equipment Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Fuhua Machinery Equipment Manufacturing Co Ltd filed Critical Guangdong Fuhua Machinery Equipment Manufacturing Co Ltd
Priority to CN201611228206.5A priority Critical patent/CN106769096B/en
Publication of CN106769096A publication Critical patent/CN106769096A/en
Application granted granted Critical
Publication of CN106769096B publication Critical patent/CN106769096B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of semitrailer saddle-type traction base testing stand and its test method, including support, platform, longitudinal pressure device and transverse pressure device;The platform is used to place traction seat, and the support is fixed on the platform;The longitudinal pressure device is fixed in the support and vertically towards the platform, the pressure that the longitudinal pressure device can be to traction seat applying vertically;The transverse pressure device is set on the platform, the pressure that the transverse pressure device can be to traction seat applying in the horizontal direction.The present invention applies the pressure of different directions to traction seat using longitudinal pressure device and transverse pressure device, so as to simulate the use process of traction seat, simple structure is consolidated, and detection efficiency is high.

Description

Semitrailer saddle-type traction base testing stand and its test method
Technical field
The present invention relates to a kind of testing stand, more particularly to a kind of semitrailer saddle-type traction base testing stand and its test method.
Background technology
With the rapid expansion of the fast-developing and range of activity of global economy, trade activity has turned into current international The mostly important field of competition and cooperation, the trade of goods is the major impetus of various countries' economic growth, be also increase national income and Improve the important means of employment rate.With the continuous growth of trade of goods activity, transport service is also developed therewith, and with large The development of cargo transport and Container Transport is protruded the most, so as to promote the development of semitrailer relevant industries.Semitrailer saddle Formula traction seat is arranged on the vehicle frame before tractor back axle, is realized coupling between tractor and semitrailer and is separated.Traction dress Put with semitrailer front load, to be coupled with semi-trailer traction pin by lockable mechanism, transmit tractive force, hung again after de- extension Car can be automatically performed the device for being coupled semi-trailer traction pin.
The semitrailer of long-distance transport and part manufacture and design the road conditions for needing to adapt to different regions, saddle-type traction base For being coupled semitrailer and tractor, a part of weight of semitrailer can be shared on traction seat, and semitrailer can be with leading Draw the steering of car and swung with respect to traction seat, therefore saddle-type traction base needs to bear horizontal and vertical pressure.Saddle-type traction base Needed before dispatching from the factory by load test, it is qualified after can just dispatch from the factory, at present not dedicated for saddle-type traction base load test Testing stand.
The content of the invention
In order to overcome the shortcoming and deficiency of prior art, the invention discloses a kind of semitrailer saddle-type traction base testing stand, Including support, platform, longitudinal pressure device and transverse pressure device;The platform is used to place traction seat, and the support is fixed On the platform;The longitudinal pressure device is fixed in the support and vertically towards the platform, described vertical Can apply pressure vertically to the traction seat to pressure apparatus;The transverse pressure device is arranged on the platform On, the pressure that the transverse pressure device can be to traction seat applying in the horizontal direction.Using the transverse pressure device and Longitudinal pressure device, can apply the pressure on vertical direction and in horizontal direction to traction seat.
Further, also including the rigid plate for transmitting pressure, the rigid plate is arranged on the longitudinal pressure device Lower section.Can be uniformly dispersed the pressure that longitudinal pressure device is transmitted to traction seating face by the rigid plate.
Further, also including sliding shim, the sliding shim is arranged on the rigid plate bottom.The sliding shim Effect be to reduce the frictional force between rigid plate and traction seat, so as to reduce test error.
Further, also including support frame, support frame as described above is set on the platform, support frame as described above be used for it is described The bottom of traction seat is affixed;The transverse pressure device is connected with support frame as described above, and the transverse pressure device can drive described Support frame is moved.Support frame can provide support for traction seat, while can be produced between traction seat and towing pin relative Pressure, so that simulating actual conditions.
Further, also including line slideway and the sliding block that can be moved along the line slideway, the line slideway is set On the platform, support frame as described above is fixed on the sliding block.Line slideway can ensure transverse pressure with the setting of sliding block Device can be moved in the straight direction, reduce error.
Further, also including guider, the guider is arranged in the support, and the guider is provided with The pilot hole being arranged in a vertical direction, pilot hole of the longitudinal pressure device through the guider.Guider can be with Longitudinal pressure device is set straight line to be kept during pressing downwards and is more stablized.
Further, the support includes transverse direction and two root posts, and the two root posts are arranged on the platform surface Two ends, the beam erection is on the top of the two root posts;The longitudinal pressure device is fixed on the crossbeam.It is such Set can with material-saving and obtain stabilization structure.
The present invention applies the pressure of different directions using longitudinal pressure device and transverse pressure device to traction seat, so that mould Intend the use process of traction seat, simple structure is consolidated, and detection efficiency is high.
The invention also discloses a kind of test method carried out using above-mentioned testing stand, comprise the following steps:
S1:One towing pin is snapped in into traction seat;
S2:The traction seat that card has towing pin is placed on platform and positioned at the lower section of longitudinal pressure device;In longitudinal direction Rigid plate is placed between pressure apparatus and traction seat, nylon spacer is placed between rigid plate and traction seat, made rigid plate and lead Coefficient of friction between ushering is no more than 0.15.
S3:The transverse pressure device is connected with the bottom of the traction seat;The bottom of traction seat is affixed with support frame, horizontal Affixed with the side of support frame to pressure apparatus, support frame opposed platforms may move, and transverse pressure device promotes support frame.
S4:Longitudinal pressure device is pushed, and pressure vertically downwards is applied to traction seat, while transverse pressure device To traction seat applying pressure in the horizontal direction;The pressure that the pressure and transverse pressure device that longitudinal pressure device applies apply is equal By sinusoidal cycle.
Relative motion between towing pin and traction seat can be simulated by the setting of support frame, so that accurately detection traction The load for going up in the horizontal direction that can seat bear.Nylon spacer can reduce the coefficient of friction between rigid plate and traction seat, So as to avoid the friction effects process of the test between rigid plate and traction seat.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is overall schematic of the invention.
Fig. 2 is Fig. 1 the latter half enlarged drawing.
Specific embodiment
Fig. 1-2 is referred to, semitrailer saddle-type traction base testing stand of the invention includes support 10, platform 20, longitudinal pressure Device 30, transverse pressure device 40 and rigid plate 50.The support 10 and transverse pressure device 40 are arranged at the platform 20 On, the longitudinal pressure device 30 is arranged in the support 10 and vertically towards the platform 20, traction seat 91 is put Put on the platform 20, the pressure that the longitudinal pressure device 30 can apply vertically to the traction seat 91.It is described Transverse pressure device 40 is arranged on the platform 20, and the transverse pressure device 40 can apply along level to the traction seat 91 The pressure in direction.The rigid plate 50 is arranged on the lower section of the longitudinal pressure device 30, for transmitting pressure.
The platform 20 is used for placing component and the workpiece of traction seat 91, and platform 20 can be set on the ground, it is also possible to use Other rigid bases are fixed.The position that the lower section of the longitudinal pressure device 30 is located on platform 20 is station.
The support 10 includes column 11 and crossbeam 12.In the present embodiment, two root posts 11,11 points of two root posts are provided with altogether The two ends on the surface of the platform 20 are not fixed on, positioned at the both sides of station.The crossbeam 12 is erected at the top of two root posts 11, The longitudinal pressure device 30 is fixed on the crossbeam 12 by two clamping plates, is locked by bolt between two clamping plates.
The longitudinal pressure device 30 is in the present embodiment a servo cylinder, and it is provided with a telescopic piston rod, Piston rod vertically can stretch out to station.The lower end of the piston rod is fixed with a connecting plate 31, and connecting plate 31 can be with institute Rigid plate 50 is stated to be connected, can be by pressure transmission to the rigid plate 50, by rigidity when longitudinal pressure device 30 is pushed Plate 50 uniformly transfers to workpiece pressure.
The rigid plate 50 is fitted with the surface of the workpiece of traction seat 91, and rigid plate 50 connects for simulating semitrailer with tractor Tactile slide plate, simulation semitrailer is by pressure transmission to traction seat 91.The bottom of rigid plate 50 is provided with for housing towing pin 92 groove.The sliding shim 60 for reducing coefficient of friction is provided between the rigid plate 50 and traction seat 91.
The transverse pressure device 40 is arranged on the platform 20, and in the present embodiment, the transverse pressure device 40 is One servo cylinder, it is fixed with column 11 and platform 20 respectively.Transverse pressure device 40 can stretch out to station in the horizontal direction.
Testing stand of the invention also includes support frame 71, line slideway 72 and sliding block 73.The line slideway 72 is fixed on On the station of the platform 20, the sliding block 73 is arranged in the line slideway 72 and can be moved along the line slideway 72, The bottom of support frame as described above 71 is fixed on the sliding block 73.Support frame as described above 71 is used for the workpiece of traction seat 91 described in support, when When carrying out load test, bottom and the upper surface of support frame as described above 71 of the workpiece of the traction seat 91 are fixed.The transverse pressure Device 40 is affixed with one end of support frame as described above 71, and the transverse pressure device 40 can promote support frame as described above 71 along the straight line Guide rail 72 is moved.
This testing stand also includes guider 80, and the guider 80 is arranged in the support 10, described to be oriented to dress Put 80 and be provided with the pilot hole 81 being arranged in a vertical direction, pilot hole of the longitudinal pressure device 30 through the guider 80 81.The guider 80 is used to limit the telescopic direction of the longitudinal pressure device 30, it is to avoid longitudinal pressure device 30 is being applied Flexural deformation during pressure.
The testing stand course of work of the invention is as follows:Traction seat is placed on support frame and is fixed first and with bolt, During towing pin snapped into traction seat again, sliding shim then is placed in traction seat upper surface, then rigid plate is placed on described On sliding shim, the groove of the rigid plate bottom is enclosed within outside the traction pin head part.The longitudinal pressure device stretches out piston Bar, makes connecting plate be fitted with rigid plate, then connecting plate and rigid plate are fixed.Then longitudinal pressure device and transverse pressure are passed through Device applies different size of pressure to simulate the use process of traction seat.
The present invention applies the pressure of different directions using longitudinal pressure device and transverse pressure device to traction seat, so that mould Intend the use process of traction seat, simple structure is consolidated, and detection efficiency is high.
A kind of test method tested using above-mentioned testing stand, is comprised the following steps:
S1:One towing pin is snapped in into traction seat;
S2:The traction seat that card has towing pin is placed on platform and positioned at the lower section of longitudinal pressure device;In longitudinal direction Rigid plate is placed between pressure apparatus and traction seat, nylon spacer is placed between rigid plate and traction seat, made rigid plate and lead Coefficient of friction between ushering is no more than 0.15.
S3:The transverse pressure device is connected with the bottom of the traction seat;The bottom of traction seat is affixed with support frame, horizontal Affixed with the side of support frame to pressure apparatus, support frame opposed platforms may move, and transverse pressure device promotes support frame.
S4:Longitudinal pressure device is pushed, and pressure vertically downwards is applied to traction seat, while transverse pressure device To traction seat applying pressure in the horizontal direction;The pressure that the pressure and transverse pressure device that longitudinal pressure device applies apply is equal By sinusoidal cycle.
Test frequency is no more than 35Hz, and should not be Chong Die with system frequency.
Relative motion between towing pin and traction seat can be simulated by the setting of support frame, so that accurately detection traction The load for going up in the horizontal direction that can seat bear.Nylon spacer can reduce the coefficient of friction between rigid plate and traction seat, So as to avoid the friction effects process of the test between rigid plate and traction seat.
The invention is not limited in above-mentioned implementation method, if not departing from the present invention to various changes of the invention or deformation Spirit and scope, if these are changed and within the scope of deformation belongs to claim of the invention and equivalent technologies, then this hair It is bright to be also intended to comprising these changes and deform.

Claims (10)

1. semitrailer saddle-type traction base testing stand, it is characterised in that:Including support, platform, longitudinal pressure device and transverse pressure Device;The platform is used to place traction seat, and the support is fixed on the platform;The longitudinal pressure device is fixed on institute State in support and vertically towards the platform, the longitudinal pressure device can apply vertically to the traction seat Pressure;The transverse pressure device is set on the platform, and the transverse pressure device can apply edge to the traction seat The pressure of horizontal direction.
2. semitrailer saddle-type traction base testing stand according to claim 1, it is characterised in that:Also include for transmitting pressure Rigid plate, the rigid plate is arranged on the lower section of the longitudinal pressure device.
3. semitrailer saddle-type traction base testing stand according to claim 2, it is characterised in that:Also include sliding shim, institute State sliding shim and be arranged on the rigid plate bottom.
4. semitrailer saddle-type traction base testing stand according to claim 3, it is characterised in that:Also include support frame, it is described Support frame is set on the platform, and support frame as described above is used for affixed with the bottom of the traction seat;The transverse pressure device It is connected with support frame as described above, the transverse pressure device can drive support frame as described above to move.
5. semitrailer saddle-type traction base testing stand according to claim 4, it is characterised in that:Also include line slideway and can Along the sliding block that the line slideway is moved, the line slideway is set on the platform, and support frame as described above is fixed on the cunning On block.
6. semitrailer saddle-type traction base testing stand according to claim 1, it is characterised in that:Also include guider, institute State guider to be arranged in the support, the guider is provided with the pilot hole being arranged in a vertical direction, the longitudinal direction pressure Pilot hole of the power apparatus through the guider.
7. semitrailer saddle-type traction base testing stand according to claim 1, it is characterised in that:The support include laterally and Two root posts, the two root posts are arranged on the two ends of the platform surface, and the beam erection is on the top of the two root posts End;The longitudinal pressure device is fixed on the crossbeam.
8. the test method of a kind of testing stand according to the claims 1-7 any one, it is characterised in that:Including with Lower step:
S1:One towing pin is snapped in into traction seat;
S2:The traction seat that card has towing pin is placed on platform and positioned at the lower section of longitudinal pressure device;
S3:The transverse pressure device is connected with the bottom of the traction seat;
S4:Longitudinal pressure device is pushed, and pressure vertically downwards is applied to traction seat, while transverse pressure device is to leading Usher and apply pressure in the horizontal direction;The pressure that the pressure and transverse pressure device that longitudinal pressure device applies apply is by just Chord curve is circulated.
9. test method according to claim 8, it is characterised in that:In step s3, the bottom of traction seat and support frame Affixed, transverse pressure device is affixed with the side of support frame, and support frame opposed platforms may move, and transverse pressure device promotes support Frame.
10. test method according to claim 9, it is characterised in that:In step s 2, in longitudinal pressure device and traction Rigid plate is placed between seat, nylon spacer is placed between rigid plate and traction seat, make the friction between rigid plate and traction seat Coefficient is no more than 0.15.
CN201611228206.5A 2016-12-27 2016-12-27 Semitrailer saddle type traction seat test bed and test method thereof Active CN106769096B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611228206.5A CN106769096B (en) 2016-12-27 2016-12-27 Semitrailer saddle type traction seat test bed and test method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611228206.5A CN106769096B (en) 2016-12-27 2016-12-27 Semitrailer saddle type traction seat test bed and test method thereof

Publications (2)

Publication Number Publication Date
CN106769096A true CN106769096A (en) 2017-05-31
CN106769096B CN106769096B (en) 2023-08-01

Family

ID=58922633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611228206.5A Active CN106769096B (en) 2016-12-27 2016-12-27 Semitrailer saddle type traction seat test bed and test method thereof

Country Status (1)

Country Link
CN (1) CN106769096B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110686875A (en) * 2019-08-05 2020-01-14 陈兵 Static lifting test bed
CN113865837A (en) * 2020-06-12 2021-12-31 广州汽车集团股份有限公司 Trailer traction testing device
CN113945392A (en) * 2021-10-18 2022-01-18 一汽解放汽车有限公司 Traction seat verification platform
CN116499732A (en) * 2023-06-29 2023-07-28 山东神驰重工机械有限公司 Automatic testing device for traction seat

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435194A (en) * 1993-02-17 1995-07-25 Georg Fischer Verkehrstechnik Gmbh Arrangement of measuring devices on a semitrailer motor vehicle
US5526702A (en) * 1993-02-17 1996-06-18 Georg Fischer Verkehrstechnik Gmbh Arrangement of measuring devices on a semitrailer motor vehicle
KR19990035487A (en) * 1997-10-31 1999-05-15 정몽규 Trailer Towing Rigid Test Jig
JP2001194269A (en) * 1999-10-29 2001-07-19 Toyota Motor Corp Traction testing method and its device
CN201712686U (en) * 2010-05-21 2011-01-19 广东富华工程机械制造有限公司 Saddle type traction seat
CN103575553A (en) * 2012-07-24 2014-02-12 南车青岛四方机车车辆股份有限公司 Traction pin loading device for strength test of car body
CN103698121A (en) * 2014-01-06 2014-04-02 株洲时代新材料科技股份有限公司 Rail car traction pull rod combined load test method and device
CN105300584A (en) * 2015-09-18 2016-02-03 北汽福田汽车股份有限公司 Test system for testing impact force on tractor saddle
CN206311350U (en) * 2016-12-27 2017-07-07 广东富华机械装备制造有限公司 Semitrailer saddle-type traction base testing stand

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435194A (en) * 1993-02-17 1995-07-25 Georg Fischer Verkehrstechnik Gmbh Arrangement of measuring devices on a semitrailer motor vehicle
US5526702A (en) * 1993-02-17 1996-06-18 Georg Fischer Verkehrstechnik Gmbh Arrangement of measuring devices on a semitrailer motor vehicle
KR19990035487A (en) * 1997-10-31 1999-05-15 정몽규 Trailer Towing Rigid Test Jig
JP2001194269A (en) * 1999-10-29 2001-07-19 Toyota Motor Corp Traction testing method and its device
CN201712686U (en) * 2010-05-21 2011-01-19 广东富华工程机械制造有限公司 Saddle type traction seat
CN103575553A (en) * 2012-07-24 2014-02-12 南车青岛四方机车车辆股份有限公司 Traction pin loading device for strength test of car body
CN103698121A (en) * 2014-01-06 2014-04-02 株洲时代新材料科技股份有限公司 Rail car traction pull rod combined load test method and device
CN105300584A (en) * 2015-09-18 2016-02-03 北汽福田汽车股份有限公司 Test system for testing impact force on tractor saddle
CN206311350U (en) * 2016-12-27 2017-07-07 广东富华机械装备制造有限公司 Semitrailer saddle-type traction base testing stand

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110686875A (en) * 2019-08-05 2020-01-14 陈兵 Static lifting test bed
CN113865837A (en) * 2020-06-12 2021-12-31 广州汽车集团股份有限公司 Trailer traction testing device
CN113865837B (en) * 2020-06-12 2023-11-03 广州汽车集团股份有限公司 Trailer traction testing device
CN113945392A (en) * 2021-10-18 2022-01-18 一汽解放汽车有限公司 Traction seat verification platform
CN113945392B (en) * 2021-10-18 2024-10-11 一汽解放汽车有限公司 Traction seat verification platform
CN116499732A (en) * 2023-06-29 2023-07-28 山东神驰重工机械有限公司 Automatic testing device for traction seat
CN116499732B (en) * 2023-06-29 2023-11-21 山东神驰重工机械有限公司 Automatic testing device for traction seat

Also Published As

Publication number Publication date
CN106769096B (en) 2023-08-01

Similar Documents

Publication Publication Date Title
EP2372334B1 (en) Vehicle-body integrated test bench
CN106769096A (en) Semitrailer saddle-type traction base testing stand and its test method
CN106855465B (en) Car body self-leveling test bench
CN107576517B (en) A kind of vehicle active suspension Testing Platform
CN104502014B (en) Braking-force detecting device that automobile axle load based on stand adjusts automatically and method
CN102928239B (en) Experimental rack and experimental platform for testing multi-axle steering
CN104236936B (en) A kind of Efficient track bogie of car static test equipment
CN206311350U (en) Semitrailer saddle-type traction base testing stand
CN104458314B (en) A kind of subway shield door load testing machine
CN205808734U (en) A kind of test-bed for Air Suspension for Commercial Vehicles system
CN204277382U (en) For the flexible carriage frock of subframe bushing press-mounting
CN107478415A (en) A kind of test tool for the loading of the direction of leaf spring three
CN107176178A (en) A kind of adjustable rail vehicle guiding mechanism
CN205808683U (en) A kind of test tool loaded for leaf spring three direction
CN106378366B (en) A kind of correcting automobile body system
CN104458292A (en) Static-strength-load loading assisting device used for vehicle body end accident test
CN110333084A (en) A kind of detecting tool based on ABS control characteristic
CN206326525U (en) Universal vehicle frame general assembly gripper
CN204202888U (en) A kind of Efficient track bogie of car static test equipment
CN207408117U (en) Six pot of one drum-type entirety six degree of freedom exciting trolley coach bogie test platform
CN203275005U (en) Multifunctional vehicle brake composite detection station
CN204286834U (en) A kind of subway shield door load testing machine
CN202938740U (en) Detection device of slides used in automobile coating
CN207308165U (en) A kind of Universal automobile application sled
CN104568472B (en) Automobile spare tire lid fatigue strength test platform

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant