CN106769096B - Semitrailer saddle type traction seat test bed and test method thereof - Google Patents
Semitrailer saddle type traction seat test bed and test method thereof Download PDFInfo
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- CN106769096B CN106769096B CN201611228206.5A CN201611228206A CN106769096B CN 106769096 B CN106769096 B CN 106769096B CN 201611228206 A CN201611228206 A CN 201611228206A CN 106769096 B CN106769096 B CN 106769096B
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- traction seat
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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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
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a semitrailer saddle type traction seat test bed and a test method thereof, wherein the semitrailer saddle type traction seat test bed comprises a bracket, a platform, a longitudinal pressure device and a transverse pressure device; the platform is used for placing the traction seat, and the bracket is fixed on the platform; the longitudinal pressure device is fixed in the bracket and faces the platform along the vertical direction, and can apply pressure along the vertical direction to the traction seat; the transverse pressure device is arranged on the platform and can apply pressure along the horizontal direction to the traction seat. The invention applies pressure in different directions to the traction seat by utilizing the longitudinal pressure device and the transverse pressure device, thereby simulating the use process of the traction seat, and having simple and stable structure and high detection efficiency.
Description
Technical Field
The invention relates to a test bed, in particular to a semitrailer saddle type traction seat test bed and a test method thereof.
Background
With the rapid development of global economy and the rapid expansion of the range of economic activity, trade activities have become the most important field of international competition and cooperation nowadays, and cargo trade is a main motive force for the increase of economy of various countries and an important means for increasing national income and improving employment rate. With the continuous growth of goods trade activities, the transportation industry is also developed and is most prominent in the development of bulk goods transportation and container transportation, so that the development of the related industries of semitrailers is promoted. The semitrailer saddle type traction seat is arranged on a frame in front of a rear axle of the tractor, so that coupling and separation between the tractor and the semitrailer are realized. The traction device is used for being connected with the traction pin of the semitrailer along with the front load of the semitrailer through the locking mechanism, and transmitting traction force, and the semitrailer can automatically complete the device for connecting the traction pin of the semitrailer after unhooking.
The design and manufacture of long-distance transport semi-trailers and components need to be adapted to road conditions in different areas, saddle-type traction seats are used for connecting the semi-trailer and a tractor, a part of the weight of the semi-trailer can be shared on the traction seats, and the semi-trailer can swing relative to the traction seats along with the steering of the tractor, so that the saddle-type traction seats need to bear transverse and longitudinal pressure. Before the saddle type traction seat leaves the factory, the saddle type traction seat can leave the factory after being qualified through a load test, and no special test bed for the saddle type traction seat load test exists at present.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention discloses a semitrailer saddle type traction seat test bed, which comprises a bracket, a platform, a longitudinal pressure device and a transverse pressure device; the platform is used for placing the traction seat, and the bracket is fixed on the platform; the longitudinal pressure device is fixed in the bracket and faces the platform along the vertical direction, and applies pressure along the vertical direction to the traction seat; the transverse pressure device is arranged on the platform and applies pressure along the horizontal direction to the traction seat. With the lateral pressure device and the longitudinal pressure device, pressure in the vertical direction and in the horizontal direction can be applied to the fifth wheel.
Further, a rigid plate for transmitting pressure is also included, said rigid plate being arranged below said longitudinal pressure means. The rigid plate can uniformly disperse the pressure transmitted by the longitudinal pressure device to the surface of the traction seat.
Further, the device also comprises a sliding gasket, wherein the sliding gasket is arranged at the bottom of the rigid plate. The sliding gasket is used for reducing the friction force between the rigid plate and the traction seat, thereby reducing test errors.
Further, the device also comprises a support frame, wherein the support frame is arranged on the platform and is used for being fixedly connected with the bottom of the traction seat; the transverse pressure device is connected with the supporting frame and drives the supporting frame to move. The support frame can provide the support for the traction seat, can produce relative pressure between traction seat and towing pin simultaneously to simulate actual conditions.
Further, the device also comprises a linear guide rail and a sliding block capable of moving along the linear guide rail, wherein the linear guide rail is arranged on the platform, and the supporting frame is fixed on the sliding block. The arrangement of the linear guide rail and the sliding block can ensure that the transverse pressure device can move in the linear direction, so that errors are reduced.
Further, the device further comprises a guide device, wherein the guide device is arranged in the bracket, the guide device is provided with guide holes which are arranged along the vertical direction, and the longitudinal pressure device passes through the guide holes of the guide device. The guide means can keep the longitudinal pressure means straight and more stable during the downward pressing.
Further, the support comprises a cross beam and two upright posts, the two upright posts are arranged at two ends of the surface of the platform, and the cross beam is erected at the top ends of the two upright posts; the longitudinal pressure device is fixed on the cross beam. Such an arrangement saves material and achieves a stable structure.
The invention applies pressure in different directions to the traction seat by utilizing the longitudinal pressure device and the transverse pressure device, thereby simulating the use process of the traction seat, and having simple and stable structure and high detection efficiency.
The invention also discloses a test method by using the test bed, which comprises the following steps:
s1: clamping a traction pin into the traction seat;
s2: placing a fifth wheel with a fifth wheel on the platform and below the longitudinal pressure device; a rigid plate is arranged between the longitudinal pressure device and the traction seat, and a nylon gasket is arranged between the rigid plate and the traction seat, so that the friction coefficient between the rigid plate and the traction seat is not more than 0.15.
S3: the transverse pressure device is connected with the bottom of the traction seat; the bottom of the traction seat is fixedly connected with the support frame, the transverse pressure device is fixedly connected with one side of the support frame, the support frame is movable relative to the platform, and the transverse pressure device pushes the support frame.
S4: the longitudinal pressure device is pressed downwards to apply downward pressure to the traction seat along the vertical direction, and the transverse pressure device is used for applying pressure to the traction seat along the horizontal direction; the pressure applied by the longitudinal pressure means and the pressure applied by the transverse pressure means are both cycled sinusoidally.
The relative motion between the traction pin and the traction seat can be simulated through the arrangement of the support frame, so that whether the traction seat can bear loads along the horizontal direction or not can be accurately detected. The nylon gasket can reduce the friction coefficient between the rigid plate and the traction seat, so that the friction force between the rigid plate and the traction seat is prevented from affecting the test process.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is an enlarged view of the lower half of fig. 1.
Detailed Description
Referring to fig. 1-2, the fifth wheel test stand of the present invention includes a frame 10, a platform 20, a longitudinal pressure device 30, a lateral pressure device 40, and a rigid plate 50. The bracket 10 and the transverse pressure device 40 are both arranged on the platform 20, the longitudinal pressure device 30 is arranged in the bracket 10 and faces the platform 20 along the vertical direction, the traction seat 91 is arranged on the platform 20, and the longitudinal pressure device 30 can apply pressure along the vertical direction to the traction seat 91. The lateral pressure device 40 is disposed on the platform 20, and the lateral pressure device 40 may apply pressure in a horizontal direction to the fifth wheel 91. The rigid plate 50 is disposed below the longitudinal pressure means 30 for transmitting pressure.
The platform 20 is used for placing components and a workpiece of the traction seat 91, and the platform 20 can be arranged on the ground or fixed by other rigid bases. The location on the platform 20 below the longitudinal pressure device 30 is a station.
The bracket 10 comprises a column 11 and a cross beam 12. In this embodiment, two columns 11 are provided, and the two columns 11 are respectively fixed at two ends of the surface of the platform 20 and are located at two sides of the station. The cross beam 12 is erected at the top ends of the two upright posts 11, and the longitudinal pressure device 30 is fixed on the cross beam 12 through two clamping plates, and the two clamping plates are locked through bolts.
The longitudinal pressure device 30 is in this embodiment a servo cylinder provided with a telescopic piston rod which can be extended in a vertical direction towards the work station. The lower end of the piston rod is fixed with a connecting plate 31, the connecting plate 31 can be fixedly connected with the rigid plate 50, and when the longitudinal pressure device 30 is pressed down, the pressure can be transmitted to the rigid plate 50, and the pressure is uniformly transmitted to a workpiece through the rigid plate 50.
The rigid plate 50 is attached to the surface of the workpiece of the traction seat 91, and the rigid plate 50 is used for simulating a sliding plate of the semi-trailer, which is in contact with the tractor, and simulating the semi-trailer to transmit pressure to the traction seat 91. The bottom of the rigid plate 50 is provided with a recess for receiving the towing pin 92. A sliding pad 60 for reducing the friction coefficient is provided between the rigid plate 50 and the fifth wheel 91.
The lateral pressure device 40 is disposed on the platform 20, and in this embodiment, the lateral pressure device 40 is a servo cylinder, which is fixed to the upright 11 and the platform 20 respectively. The lateral pressure device 40 may extend horizontally toward the workstation.
The test stand of the present invention further comprises a support 71, a linear guide 72 and a slider 73. The linear guide rail 72 is fixed on the station of the platform 20, the sliding block 73 is arranged in the linear guide rail 72 and can move along the linear guide rail 72, and the bottom of the supporting frame 71 is fixed on the sliding block 73. The supporting frame 71 is used for supporting the workpiece of the traction seat 91, and when a load test is carried out, the bottom of the workpiece of the traction seat 91 is fixed with the upper surface of the supporting frame 71. The lateral pressure device 40 is fixedly connected with one end of the supporting frame 71, and the lateral pressure device 40 can push the supporting frame 71 to move along the linear guide rail 72.
The test stand further comprises a guide device 80, wherein the guide device 80 is arranged in the support 10, the guide device 80 is provided with a guide hole 81 arranged along the vertical direction, and the longitudinal pressure device 30 passes through the guide hole 81 of the guide device 80. The guide means 80 is used to limit the expansion and contraction direction of the longitudinal pressure means 30, and prevent the longitudinal pressure means 30 from being bent and deformed when being pressed.
The working process of the test bed of the invention is as follows: firstly, placing a traction seat on a support frame and fixing the traction seat by using a bolt, then clamping a traction pin into the traction seat, then placing a sliding gasket on the upper surface of the traction seat, and then placing a rigid plate on the sliding gasket, wherein a groove at the bottom of the rigid plate is sleeved outside the head part of the traction pin. The longitudinal pressure device extends out of the piston rod to enable the connecting plate to be attached to the rigid plate, and then the connecting plate and the rigid plate are fixed. The use of the fifth wheel is then simulated by applying different amounts of pressure by the longitudinal pressure means and the transverse pressure means.
The invention applies pressure in different directions to the traction seat by utilizing the longitudinal pressure device and the transverse pressure device, thereby simulating the use process of the traction seat, and having simple and stable structure and high detection efficiency.
A test method for performing a test by using the test stand comprises the following steps:
s1: clamping a traction pin into the traction seat;
s2: placing a fifth wheel with a fifth wheel on the platform and below the longitudinal pressure device; a rigid plate is arranged between the longitudinal pressure device and the traction seat, and a nylon gasket is arranged between the rigid plate and the traction seat, so that the friction coefficient between the rigid plate and the traction seat is not more than 0.15.
S3: the transverse pressure device is connected with the bottom of the traction seat; the bottom of the traction seat is fixedly connected with the support frame, the transverse pressure device is fixedly connected with one side of the support frame, the support frame is movable relative to the platform, and the transverse pressure device pushes the support frame.
S4: the longitudinal pressure device is pressed downwards to apply downward pressure to the traction seat along the vertical direction, and the transverse pressure device is used for applying pressure to the traction seat along the horizontal direction; the pressure applied by the longitudinal pressure means and the pressure applied by the transverse pressure means are both cycled sinusoidally.
The test frequency should not exceed 35Hz and should not overlap with the natural frequency of the system.
The relative motion between the traction pin and the traction seat can be simulated through the arrangement of the support frame, so that whether the traction seat can bear loads along the horizontal direction or not can be accurately detected. The nylon gasket can reduce the friction coefficient between the rigid plate and the traction seat, so that the friction force between the rigid plate and the traction seat is prevented from affecting the test process.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (6)
1. Semitrailer saddle formula traction table test bench, its characterized in that: comprises a bracket, a platform, a longitudinal pressure device and a transverse pressure device; the platform is used for placing the traction seat, and the bracket is fixed on the platform; the longitudinal pressure device is fixed in the bracket and faces the platform along the vertical direction, and applies pressure along the vertical direction to the traction seat; the transverse pressure device is arranged on the platform and applies pressure along the horizontal direction to the traction seat; the pressures exerted by the longitudinal pressure device and the transverse pressure device are circulated in a sinusoidal manner; the semitrailer saddle type traction seat test bed also comprises a rigid plate for transmitting pressure, wherein the rigid plate is arranged below the longitudinal pressure device; the semitrailer saddle type traction seat test bed also comprises a sliding gasket, wherein the sliding gasket is arranged at the bottom of the rigid plate; the rigid plate is attached to the surface of the traction seat workpiece, and is used for simulating a sliding plate of the semi-trailer, which is in contact with the traction vehicle, and simulating the semi-trailer to transmit pressure to the traction seat; the semitrailer saddle type traction seat test bed also comprises a support frame, a linear guide rail and a sliding block capable of moving along the linear guide rail; the supporting frame is arranged on the platform and is used for being fixedly connected with the bottom of the traction seat; the transverse pressure device is connected with the support frame and drives the support frame to move; the linear guide rail is arranged on the platform, and the supporting frame is fixed on the sliding block.
2. The semitrailer saddle test stand of claim 1, wherein: the device also comprises a guide device, wherein the guide device is arranged in the bracket, the guide device is provided with guide holes which are arranged along the vertical direction, and the longitudinal pressure device passes through the guide holes of the guide device.
3. The semitrailer saddle test stand of claim 1, wherein: the support comprises a cross beam and two upright posts, the two upright posts are arranged at two ends of the surface of the platform, and the cross beam is erected at the top ends of the two upright posts; the longitudinal pressure device is fixed on the cross beam.
4. A test method according to any one of the preceding claims 1-3, characterized in that: the method comprises the following steps:
s1: clamping a traction pin into the traction seat;
s2: placing a fifth wheel with a fifth wheel on the platform and below the longitudinal pressure device;
s3: the transverse pressure device is connected with the bottom of the traction seat;
s4: the longitudinal pressure device is pressed downwards to apply downward pressure to the traction seat along the vertical direction, and the transverse pressure device is used for applying pressure to the traction seat along the horizontal direction; the pressure applied by the longitudinal pressure means and the pressure applied by the transverse pressure means are both cycled sinusoidally.
5. The assay method of claim 4, wherein: in step S3, the bottom of the traction seat is fixedly connected with the support frame, the lateral pressure device is fixedly connected with one side of the support frame, the support frame is movable relative to the platform, and the lateral pressure device pushes the support frame.
6. The assay method of claim 5, wherein: in step S2, a rigid plate is placed between the longitudinal pressure device and the fifth wheel, and a nylon spacer is placed between the rigid plate and the fifth wheel, such that the coefficient of friction between the rigid plate and the fifth wheel does not exceed 0.15.
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 CN106769096A (en) | 2017-05-31 |
| CN106769096B true CN106769096B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611228206.5A Active CN106769096B (en) | 2016-12-27 | 2016-12-27 | Semitrailer saddle type traction seat test bed and test method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686875A (en) * | 2019-08-05 | 2020-01-14 | 陈兵 | Static lifting test bed |
| 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 |
| 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 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4402525C2 (en) * | 1993-02-17 | 1998-10-29 | Fischer Georg Verkehrstechnik | Arrangement of measuring means on a semitrailer vehicle having a tractor unit and a semitrailer |
| DE4402526C2 (en) * | 1993-02-17 | 1998-12-10 | Fischer Georg Verkehrstechnik | Arrangement of measuring means on a semitrailer vehicle having a tractor unit and a semitrailer |
| KR100256542B1 (en) * | 1997-10-31 | 2000-05-15 | 정몽규 | Force test jig of trailer towing |
| JP4298886B2 (en) * | 1999-10-29 | 2009-07-22 | トヨタ自動車株式会社 | Traction test method and apparatus |
| 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 |
| CN103575553B (en) * | 2012-07-24 | 2016-05-25 | 南车青岛四方机车车辆股份有限公司 | Car body strength test towing pin charger |
| CN103698121B (en) * | 2014-01-06 | 2015-11-04 | 株洲时代新材料科技股份有限公司 | A kind of rail vehicle drawing pull bar combination load test method and device |
| CN105300584B (en) * | 2015-09-18 | 2017-12-08 | 北汽福田汽车股份有限公司 | Tractor saddle impacts force test system |
| 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 |
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- 2016-12-27 CN CN201611228206.5A patent/CN106769096B/en active Active
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| CN106769096A (en) | 2017-05-31 |
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