CN209069569U - Air spring rigidity characteristic test apparatus - Google Patents

Air spring rigidity characteristic test apparatus Download PDF

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Publication number
CN209069569U
CN209069569U CN201821812604.6U CN201821812604U CN209069569U CN 209069569 U CN209069569 U CN 209069569U CN 201821812604 U CN201821812604 U CN 201821812604U CN 209069569 U CN209069569 U CN 209069569U
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China
Prior art keywords
air spring
connect
fixed
connector
connecting plate
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Active
Application number
CN201821812604.6U
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Chinese (zh)
Inventor
曾洋洋
龚炫
卢金良
邵庆刚
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Dongfeng Dana Axle Co Ltd
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Dongfeng Dana Axle Co Ltd
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Abstract

A kind of air spring rigidity characteristic test apparatus is used for automotive suspension components attribute testing.Integrated sensor is fixed on cylinder outer wall of cylinder block, and electrohydraulic servo device is connect with cylinder;Wedge-shaped bracket, guiding trestle, air spring bracket are fixedly arranged on ground;Connector one is fixed with wedge-shaped bracket, and connector one is connect with cylinder cylinder body using revolute pair, and actuation head is that revolute pair is connect with connector two, and two pedestal of connector is fixed on sliding rail gas spring connecting plate left side;Sliding rail gas spring connecting plate bottom surface and guide rail cooperate, and guide rail is mounted in rail support plate, and rail support plate is fixed on guiding trestle;Sliding rail gas spring connecting plate right side is connect with air spring pedestal, and air spring upper surface is connect with set square, and set square has air spring air-path interface, and bottom surface is fixed on air spring bracket.The utility model can validity test top load, big stroke air spring rigidity, test accuracy is high, and loading range is big, while clamp structure is simple, is convenient for assembly and disassembly.

Description

Air spring rigidity characteristic test apparatus
Technical field
It is specifically a kind of for testing air spring the utility model relates to automotive suspension components attribute testing technical field The experimental rig of stiffness characteristics.
Background technique
Air spring is indispensable elasticity member in automotive suspension with more and more extensive in automobile manufacturing field Part is especially requiring riding comfort higher and higher passenger car field, and the importance of air spring obtains to a certain extent Conventional helical spring is compared in very high attention, and bearing capacity is strong, stroke is big, resists and wears, and biggest advantage is non-linear rigidity spy Property can be improved the ride comfort of vehicle driving, reduce wheel to the dynamic loading on ground, extend the service life of vehicle component.It is empty The influence of gas spring rigidity in use compressed amount and air pressure, and the acting frequency of external applied load also can be to its stiffness characteristics It is influenced.With the raising that China requires vehicle driving control stability and ride comfort, the characteristic of elastic damping element Pairing suspension design is also more and more important, therefore tests the stiffness characteristics of suspension air spring, and especially dynamic stiffness characteristic is to automobile The design of suspension seems most important.Utility model CN202420840U provides a kind of air spring dynamic stiffness experimental rig, The dynamic stiffness characteristic of air spring can be tested, which loads easy unstability, and load measurement when the load of dynamic stiffness high frequency Precision is low.
Summary of the invention
In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a kind of air spring rigidity attribute testings Device, in order to the rigidity of validity test air spring under different loads frequency.
For achieving the above object, electrohydraulic servo device control cylinder actuation head movement provided by the utility model, Testing machine carries out static and dynamic rate to air spring and tests, and integrated sensor, which acquires in the entire test process of air spring, appoints The displacement and load at meaning moment.
The integrated sensor is fixed on the outer wall of cylinder cylinder body, and electrohydraulic servo device is connect with cylinder;Wedge shape Bracket, guiding trestle, air spring bracket are fixedly arranged on ground;Connector one is fixed by bolts with wedge-shaped bracket, while connector One is connect with cylinder cylinder body using revolute pair, and actuation head is that revolute pair is connect with connector two, and the pedestal of connector two passes through bolt It is fixed on sliding rail gas spring connecting plate left side;The bottom surface of sliding rail gas spring connecting plate and guide rail cooperate, and guide rail is mounted on guide supporting On plate, rail support plate is fixed on guiding trestle;The connection of the pedestal of sliding rail gas spring connecting plate right side and air spring, air Spring upper end face is connect with set square, and set square has the air-path interface of air spring, and air spring bracket is fixed in bottom surface On, actuation head control sliding rail gas spring connecting plate drives air spring to move reciprocatingly along guide rail.
The utility model compared with prior art, use more accurately positioning and guide frame and upper frequency and The actuator of displacement resolution, can validity test top load, big stroke air spring rigidity, test accuracy is high, loads model It encloses greatly, is able to satisfy large-tonnage air spring experimental condition requirement, while clamp structure is simple, be convenient for assembly and disassembly.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 2 is the sliding rail gas spring connecting board structure schematic diagram of Fig. 1.
Fig. 3 is the set square structural schematic diagram of Fig. 1.
In figure: 1- actuation head, 2- sliding rail gas spring connecting plate, 3- set square, 4- air spring, 5- wedge shape bracket, 6- guiding Bracket, 7- air spring bracket, 8, connector one, 9- cylinder cylinder body, 10- connector two, 11- guide rail, 12- rail support plate, 13- Left side, the right side 14-, 15- integrated sensor, 16- air-path interface, 17- electrohydraulic servo device.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model is horizontal type structure, and main supporting body has wedge-shaped bracket 5, guiding trestle 6, air spring bracket 7, three's pedestal are fixedly arranged on ground.The pedestal of connector 1 is connect with the right end face of wedge-shaped bracket 5, And height is adjustable, connects between cylinder cylinder body 9 and connector 1 for revolute pair.Actuation head 1 and connector 2 10 also connect for revolute pair It connects, to avoid when actuation head 1 being caused to move because of Planar Mechanisms space interference can occur for this connection, and the pedestal of connector 2 10 passes through Bolt is fixed on the left side 13 of sliding rail gas spring connecting plate 2, while the bottom surface of sliding rail gas spring connecting plate 2 is connect with guide rail 11, The two is sliding pair cooperation, and main function is guiding and reduces frictional force, and guide rail 11 is mounted in rail support plate 12, guide rail Support plate 12 is fixed on guiding trestle 6.The right side 14 of sliding rail gas spring connecting plate 2 is connect with the pedestal of air spring 4, air The upper surface of spring 4 is connect with set square 3, and the bottom surface of set square 3 is fixed on air spring bracket 7, and band is free on set square 3 The air-path interface 16 of gas spring 4 can carry out inflation/deflation to air spring 4.Actuation head 1 controls sliding rail gas spring connecting plate 2 and can drive Air spring 4 moves reciprocatingly along guide rail 11.Integrated sensor 15 is fixed on the outer wall of cylinder cylinder body 9, can accurately measure work The displacement and stress of dynamic head 1 are arranged so sensor and are more advantageous to the fortune reduced due to connector 2 10 and sliding rail gas spring connecting plate 2 Measurement error caused by the raw inertia force of movable property.Cylinder cylinder body 9 be hydraulic servo cylinder, using hydraulic oil as working media, have compared with Big pressure limit can meet the experimental condition of big load, and have very high reliability, while electrohydraulic servo device more than 17 Using closed-loop control, can thrust, speed, in terms of carry out height and accurately control, not by cylinder and fixture gravity It influences.
The utility model first needs the Traffic control system according to air spring 4 in the dynamic stiffness test for carrying out air spring 4 The position of air spring bracket 7 after the position of air spring bracket 7 determines, carries out actuation head 1 by electrohydraulic servo device 17 Control makes the length of air spring 4 be equal to its design height by adjusting the displacement of actuation head 1.Using MTS testing machine to sky Gas spring 4 carries out dynamic stiffness test, and load, data acquiring and recording can be controlled and be shown by monitoring host computer, using above-mentioned technology Scheme is capable of the dynamic stiffness of validity test large commercial car air spring 4, and the integrated sensor 15 in entire test process can To acquire the displacement and load of 4 any time of air spring, and the experimental rig high degree of automation, error is small, structure letter It is single.

Claims (1)

1. a kind of air spring rigidity characteristic test apparatus, it is characterised in that: integrated sensor (15) is fixed on cylinder cylinder body (9) on outer wall, electrohydraulic servo device (17) is connect with cylinder;Wedge-shaped bracket (5), guiding trestle (6), air spring bracket (7) it is fixedly arranged on ground;Connector one (8) is fixed by bolts with wedge-shaped bracket (5), while connector one (8) and cylinder cylinder body (9) it is connected using revolute pair, actuation head (1) is that revolute pair is connect with connector two (10), and the pedestal of connector two (10) passes through bolt It is fixed on the left side (13) of sliding rail gas spring connecting plate;The bottom surface and guide rail (11) of sliding rail gas spring connecting plate (2) cooperate, guide rail (11) it is mounted on rail support plate (12), rail support plate (12) is fixed on guiding trestle (6);Sliding rail gas spring connecting plate Right side (14) is connect with the pedestal of air spring (4), and air spring (4) upper surface is connect with set square (3), set square (3) Air-path interface (16) with air spring (4), bottom surface are fixed on air spring bracket (7), and actuation head (1) controls sliding rail Gas spring connecting plate (2) drives air spring (4) to move reciprocatingly along guide rail (11).
CN201821812604.6U 2018-11-05 2018-11-05 Air spring rigidity characteristic test apparatus Active CN209069569U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821812604.6U CN209069569U (en) 2018-11-05 2018-11-05 Air spring rigidity characteristic test apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821812604.6U CN209069569U (en) 2018-11-05 2018-11-05 Air spring rigidity characteristic test apparatus

Publications (1)

Publication Number Publication Date
CN209069569U true CN209069569U (en) 2019-07-05

Family

ID=67097682

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821812604.6U Active CN209069569U (en) 2018-11-05 2018-11-05 Air spring rigidity characteristic test apparatus

Country Status (1)

Country Link
CN (1) CN209069569U (en)

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