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Hydraulic system of extension-type trailer

A hydraulic system and steering hydraulic technology, applied in the field of hydraulic system, can solve problems such as waste of resources, and achieve the effect of saving costs and reducing the number of trailers

Active Publication Date: 2017-09-26
HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At this stage, most trailers use the method of horizontal trailers when transporting super-wide cargo with concentrated weight; this method requires the use of multiple trailers at the same time, which is likely to cause waste of resources

Method used

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  • Hydraulic system of extension-type trailer

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of...

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Abstract

The invention discloses a hydraulic system of an extension-type trailer, which comprises a steering hydraulic system, a jacking hydraulic system and a telescopic hydraulic system; the telescopic hydraulic system comprises a power unit, a four-linkage multichannel valve, a bidirectional balance valve and a cross extending oil cylinder unit; an oil inlet of the four-linkage multichannel valve is connected with an oil outlet of the power unit, and an oil returning opening of the four-linkage multichannel valve is connected with an oil returning opening of the power unit; an oil outlet of a second linkage of the four-linkage multichannel valve is connected with an oil inlet of the bidirectional balance valve, and an oil outlet of the bidirectional valve is connected with the cross extending oil cylinder. According to the invention, the cross extending oil cylinder is applied to control the frame to crossly extend; when ultra-wide cargo with concentrated weight is transported, the frame can be crossly extended to an appointed width to meet the requirement of cargo transportation; by applying the method, the trailer number in cargo transportation can be reduced and the cost is saved.

Description

technical field [0001] The invention relates to a hydraulic system, in particular to a hydraulic system of a retractable trailer. Background technique [0002] At this stage, most trailers use the method of horizontal trailers when transporting super-wide cargo with concentrated weight; this method requires the use of multiple trailers at the same time, which is likely to cause waste of resources. Contents of the invention [0003] In view of the deficiencies in the above problems, the present invention provides a hydraulic system of a retractable trailer, which can reduce the number of trailers used in cargo transportation and save costs. [0004] In order to achieve the above object, the present invention provides a hydraulic system of a retractable trailer, including: a steering hydraulic system and a jacking hydraulic system, and the steering hydraulic system includes: an axis car steering cylinder, a gooseneck steering cylinder, a steering control valve group and A d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/14
CPCB62D21/14
Inventor 冯海青周剑飞万俊周华蓉王力波
Owner HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
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