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Suspension device of semitrailer

A suspension device and semi-trailer technology, applied in the direction of suspension, elastic suspension, vehicle parts, etc., can solve the problems of leaf spring falling off, tire wear, broken spring, etc.

Inactive Publication Date: 2010-05-05
李晓秋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In use, it is found that the patent has the following deficiencies because the leaf spring is connected to the leaf spring bracket through a folding hook: 1. If the folding hook is not tightly connected to the leaf spring bracket or the folding hook breaks, the leaf spring will fall off, causing The axles and tires are detached and displaced, which may cause broken springs, broken axles, tire blowouts, rollovers, etc.
2. Due to the large gap between the folding hook and the slot hole, and the installation error, it may cause the axle and the vehicle frame to be in a non-perpendicular state, causing the tire to not be in the same direction as the forward direction during the rolling process. Abnormal wear and tear phenomenon

Method used

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  • Suspension device of semitrailer
  • Suspension device of semitrailer
  • Suspension device of semitrailer

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Experimental program
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Effect test

Embodiment Construction

[0010] Such as figure 1 , figure 2 As shown, the leaf spring brackets 8, 11, 6 are welded or fixed on the top of the axles 7, 10, 13 with "U" bolts, and a pin hole is provided at the rear of the front leaf spring bracket 8 (the left side in the setting diagram The front end of the bottom spring steel plate of the front leaf spring 15 is provided with a pin hole; the front end of the front leaf spring 15 is installed on the front leaf spring bracket 8 through the pin shaft 1, and the rear end is inserted in the middle leaf spring bracket 11 . The front portion of middle leaf spring support 11 rear portion and rear leaf spring support 6 is also provided with pin shaft holes, and the front and rear ends of the bottom spring steel plate of rear leaf spring 16 are all provided with pin shaft holes; Axle 3 is installed on the middle leaf spring support 11, and the rear end is installed on the rear leaf spring support 6 with bearing pin 5. Suspension support 2,4 lower ends are hi...

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Abstract

The invention relates to a suspension device of a semitrailer, belonging to the technical field of transportation. Suspension supports (2,4) of the suspension device are arranged in the middle parts of road springs (15,16) by support seats (9,12); dumb irons (8,11,6) are fixed above axles (7, 10 and 13); the front end of the front road spring (15) is arranged on the front dumb iron (8), and the rear end is inserted into the middle dumb iron (11); and the front end of the rear road spring (16) is arranged on the middle dumb iron (11) by a hinge pin (3), and the rear end is arranged on the rear dumb iron (6) by a hinge pin (5). The suspension device can not only effectively prevent spring breaking, shaft breaking and tyre burst of the semitrailer but also can avoid the tyre-rubbing phenomenon.

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. The suspension device of the public semi-trailer, the suspension bracket is welded at the lower end of the main longitudinal beam of the semi-trailer, the end of the leaf spring is inserted in the suspension bracket, and the middle part is connected with the axle below it through a "U"-shaped bolt, and the load on the body is passed through the suspension. The bracket is transmitted to the leaf spring and then to the axle; one side of the axle is connected to an adjacent leaf spring bracket through a tension rod to bear the lateral force. For the semi-trailer with this kin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G11/04
Inventor 李晓秋
Owner 李晓秋
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