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Semitrailer suspension device

A suspension device and semi-trailer technology, applied in the direction of suspension, elastic suspension, vehicle components, etc., can solve problems such as loose tie rod screws, safety accidents, vehicle tires, etc., to reduce workload, improve safety, and reduce costs Effect

Inactive Publication Date: 2010-06-16
李晓秋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semi-trailer adopting the above-mentioned suspension device, because the leaf spring has no fixed connection position, is in a front and rear floating state, and the front and rear positions are completely adjusted by the pull rod between the axle and the leaf spring bracket. The adjustment workload is large during assembly, and when used for a period of time The rear tie rod screws will loosen, causing the vehicle to gnaw tires or even break the shaft. Therefore, during the use of the vehicle, the length of the tie rod must be tightened and adjusted frequently. The driver has a heavy workload, and a slight negligence will lead to safety accidents

Method used

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Embodiment Construction

[0007] The present invention will be further described below in conjunction with drawings and embodiments.

[0008] In the accompanying drawings, set the left side in the figure as the front.

[0009] As shown in the drawings, the brackets 2, 4, 6, 7 are welded under the frame girder 1, and pin holes are arranged on the front bracket 2 and the rear bracket 7 and the rear of the front two brackets 4, and the front leaf spring 11 The front end of the front two leaf springs 14 and the rear end of the rear leaf spring 17 are provided with coil ears as pin holes; the front ends of the front leaf spring 11 and the front ends of the front two leaf springs 14 are respectively installed on the front bracket 2 with pins 3 and 5 And on the front two brackets 4, the rear leaf spring 17 rear ends are installed on the rear bracket 7 with the bearing pin 8; The front leaf spring 11 rear ends, the front two leaf spring 14 rear ends and the rear leaf spring 17 front ends are respectively movab...

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Abstract

The invention discloses a semitrailer suspension device in the technical field of communications and transport. The semitrailer suspension device comprises axles (10,13 and 16) and supports (2,4,6 and 7) which can be welded below a frame crossbeam, wherein the axles (10,13 and 16) are fixed on the middle parts of road springs (11,14 and 17) by U-shaped bolts (9,12 and 15); only one ends of the road springs are provided with spring eyes serving as pin roll holes, and the ends are arranged on the supports by pin rolls, wherein the front end of the front road spring (11) is arranged on the front support (2) by the pin roll; and the rear end of the rear road spring (17) is arranged on the rear support (7) by the pin roll. The invention effectively prevents the road springs from moving front and back, thereby avoiding the generation of tyre biting and shaft breaking phenomena of vehicles. Meanwhile, since pull rods are removed by the semitrailer suspension device, the cost is reduced; and the pull rods need not to be regulated in the use process of the vehicles, thereby lightening the work load for drivers.

Description

technical field [0001] The invention belongs to the technical field of transportation, and in particular relates to a suspension device for a semi-trailer. Background technique [0002] The semi-trailer suspension device is one of the main components of the semi-trailer. Its main function is to effectively, reasonably and firmly connect the moving parts of the semi-trailer axle with the semi-trailer beam. In the prior art, the structure of the semi-trailer suspension device is similar to that of the Chinese utility model patent "Semi-trailer suspension device" with the patent number of 00228953.9: the leaf spring bracket is welded at the lower end of the main longitudinal beam of the semi-trailer, and the end of the leaf spring is inserted In the leaf spring bracket, the middle part is connected with the axle below it through "U" shaped bolts, and the load on the body is transmitted to the axle through the leaf spring; one side of the axle is connected to an adjacent leaf sp...

Claims

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Application Information

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IPC IPC(8): B60G11/04
Inventor 李晓秋
Owner 李晓秋
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