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Steering system of wide-body dump truck

A technology of steering system and dump truck, applied in the field of steering system of wide-body dump truck, can solve the problem of insufficient flow in the steering system, and achieve the effect of improving steering portability and high safety

Pending Publication Date: 2018-05-11
SHANDONG PENGXIANG AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a steering system of a wide-body dump truck; mainly to solve the problem of insufficient flow in the steering system of an existing wide-body dump truck

Method used

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  • Steering system of wide-body dump truck

Examples

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Effect test

Embodiment 1

[0011] Example 1, see figure 1 According to design requirements, connect the second low-pressure pipe 11 to the oil outlet of steering oil tank 1 and the oil inlet of gear pump 2; the oil outlet of gear pump 2 and the oil inlet of overflow valve 3 are connected together through the first high-pressure pipe 12 The oil outlet of the relief valve 3 and the oil inlet of the steering gear 4 are connected together through the second high-pressure pipe 13; the two oil outlets L and R on the left side of the steering gear 4 and the two control oil ports of the hydraulic control reversing valve 7 The ports L and R are respectively connected through the fourth high-pressure pipe 15 and the fifth high-pressure pipe 16; the oil inlet P of the hydraulic control reversing valve 7 is connected with the oil outlet of the overflow valve 3 through a tee through the third high-pressure pipe 14; The oil return port T of the valve 7 is connected to the third low-pressure pipe 19, and the oil retur...

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Abstract

The invention discloses a steering system of a wide-body dump truck and belongs to the technical field of off-highway dump trucks. The steering system is characterized in that the flow of a hydraulic-control reversing valve is unlimited and can be matched according to the design, and the hydraulic-control reversing valve can be used as a flow amplifying valve; an integral type steering gear is used as a distribution valve; oil outlets of the steering gear is connected with oil ports of the hydraulic-control reversing valve correspondingly; and oil outlets of the hydraulic-control reversing valve are controlled by the steering gear to be distributed to different cavities of a power cylinder so as to achieve steering in the left-right direction. Compared with a full-hydraulic steering structure, the structure has the advantages that an operator has a response to pavement feedback through a mechanical mechanism of the integral type steering gear, and the integral type steering gear playsa role in emergency steering at the critical moment; compared with an original integral type steering gear system, the steering system has the advantage that the flow is not limited by the steering gear; and by matching a steering pump with the large displacement, the steering handiness, especially under the condition of the low rotation speed of an engine, of the truck can be improved.

Description

Technical field: [0001] The invention relates to the technical field of off-highway dump trucks, in particular to a steering system of a wide-body dump truck. technical background: [0002] At present, the steering system of wide-body dump trucks generally adopts an integral steering structure. Due to the limitation of the steering gear structure, its maximum flow rate is generally controlled at about 30L / min, which is difficult to meet the needs of large-tonnage vehicles. , When the vehicle turns quickly, the steering is heavy due to insufficient flow. Invention content: [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a steering system of a wide-body dump truck; mainly to solve the problem of insufficient flow in the steering system of the existing wide-body dump truck. [0004] The technical solution of the present invention is: a steering system of a wide-body dump truck, which is special in th...

Claims

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Application Information

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IPC IPC(8): B62D5/06B62D5/08
CPCB62D5/06B62D5/08
Inventor 李辉王同龙胡德平张军海鲁蓬霞刘真真刘海波崔贺美
Owner SHANDONG PENGXIANG AUTOMOBILE
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