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Air suspension structure capable of achieving decompression type axle height passive lifting

An air suspension and axle technology, which is applied to the cantilever, suspension, elastic suspension and other directions installed on the pivot, can solve the problem of easy free fall of the axle, and achieve good safety performance, good running economy, and structural design. simple effect

Pending Publication Date: 2020-01-21
CRRC MEISHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problem that the wheel shaft of the existing air suspension structure is easy to fall freely and cause accidents, the purpose of the present invention is to provide a decompression-type air suspension structure for passively raising the height of the wheel shaft, which has the ability to passively lift the wheel shaft by decompression, Even if the air pressure or hydraulic device leaks, the axle will not automatically fall and touch the ground; at the same time, there is no need to add an additional axle locking device to increase the weight of the trailer or semi-trailer. The structure is simple, the operation is economical, and the axle needs to be lifted. The trailer or semi-trailer has good operation safety

Method used

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  • Air suspension structure capable of achieving decompression type axle height passive lifting
  • Air suspension structure capable of achieving decompression type axle height passive lifting
  • Air suspension structure capable of achieving decompression type axle height passive lifting

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Experimental program
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Effect test

Embodiment 1

[0036] The embodiment is basically as figure 1 and figure 2 As shown: the present embodiment provides a pressure-reducing air suspension structure for passively raising the height of the wheel axle, which can be applied to vehicles such as trailers or semi-trailers that need to adjust the height of the wheel axle 9. The air suspension structure specifically includes The bracket 1 and the suspension airbag 2 on the 11, the bracket 1 is fixed and the suspension airbag 2 is respectively fixed on the vehicle frame 11 on both sides of the wheel axle 9 of the vehicle body, and the lower end of the bracket 1 is fixedly equipped with a fixed support 4. The place where it is in contact with the bracket can use an additional welding compensation plate to adjust the angle of the fixed support. Of course, other methods for adjusting the initial angle of the fixed support can also be used. The fixed support 4 can also be integrally formed with the support design; this embodiment A guide ar...

Embodiment 2

[0040] The second embodiment is basically the same as the first embodiment, the difference is that the supporting steel spring 6 provided by this embodiment is horizontally fixed on the fixed support 4, and the fixed support 4 is provided with a support for installing the supporting steel spring 6. Vertical mounting surface, so that the supporting steel spring 6 is installed stably; the elastic support mechanism provided in this embodiment also includes a steel spring push seat 5, and the steel spring push seat 5 is located below the guide arm 3 and cooperates with the lower end surface of the guide arm 3 Contact, the supporting steel spring 6 is located between the fixed support 4 and the steel spring push seat 5, the steel spring push seat 5 is connected with the end of the support steel spring 6 and supports the guide arm 3 by the steel spring push seat 5, and the steel spring push seat 5 can be fixedly connected with the supporting steel spring 6, and can also adopt a conne...

Embodiment 3

[0042] As a preferred embodiment of Embodiment 2, the present embodiment adopts a connection mode in which the steel spring push seat 5 is rotationally connected with the support 1 through the round pin 12 and is fixedly matched with the end of the supporting steel spring 6, and then the whole elastic support mechanism has better support stability; specifically, as image 3 Shown, the steel spring push seat 5 upper end is positioned at the both sides of guide arm and all is provided with connection hole, and the round pin that passes guide arm also passes the connection hole of steel spring push seat upper end both sides, to realize steel spring push seat 5 Rotately connected with the support, there is no need to additionally design the steel spring push seat 5 and the support rotating connection structure, and the inner side of the steel spring push seat is provided with a reinforcing rib 54, which simplifies the structural design and realizes the function of the steel spring ...

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Abstract

The invention discloses an air suspension structure capable of achieving decompression type axle height passive lifting, and relates to the technical field of vehicle manufacturing. The air suspensionstructure includes a bracket mounted on a vehicle body frame and a suspension airbag, a guide arm is connected to the bracket, and the lower end is provided with a fixed support; one end of the guidearm is rotatably connected to the bracket, the other end of the guide arm is connected to the lower end of the suspension airbag, and an axle is fixed on the guide arm; and an elastic supporting mechanism arranged on the fixed support and used for supporting the guide arm is further included, so that the elastic supporting mechanism is used for limiting the minimum ground clearance during axle falling when the suspension airbag is pressurized to be maximum. By means of the technical scheme, the technical problem that accidents are prone to being caused due to the fact that an existing air suspension structure axle is prone to falling freely is solved, even though an air pressure or hydraulic device leaks, the axle cannot automatically fall to make contact with the ground, and the air suspension structure is simple in structure, good in economic operation and capable of ensuring that a trailer or a semi-trailer with the axle needing to be lifted has good operating safety.

Description

technical field [0001] The invention relates to the technical field of vehicle manufacturing, in particular to a decompression-type air suspension structure for passively raising the height of a wheel axle. Background technique [0002] In the modern vehicle transportation system, in order to reduce fuel consumption and reduce tire wear, multi-axle freight vehicles will use hydraulic or pneumatic devices to lift one or more axles when the vehicle is empty or lightly loaded, and drop the axles when the vehicle is fully loaded. However, these devices are all active lifting methods, that is, a new hydraulic or air pressure device is added to directly pressurize the wheel shaft to lift it. Once the hydraulic pressure or air pressure leaks, the wheel shaft will automatically drop, causing an accident. Especially after the new road-rail dual-purpose semi-trailer is connected to the special railway bogie, when the special railway bogie is used as the running part to run on the rail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/016B60G17/052B60G7/02B60G15/02B60G15/08B61F5/30
CPCB60G7/02B60G15/02B60G15/08B60G17/016B60G17/0521B60G2300/0262B60G2300/042B60G2800/162B60G2800/914B61F5/307B61F5/308
Inventor 周炯张超德毛廷华陆强李冬陶斌左世斌谷美娜赵寿鑫江明星
Owner CRRC MEISHAN
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