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Electro-hydraulic steering system and paving machine

A steering system and paver technology, applied in electric steering mechanism, fluid steering mechanism, etc., can solve the problems of increasing the operator's work intensity and affecting the construction quality, and achieve the effect of convenient vehicle transfer and simple switching

Active Publication Date: 2017-11-17
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the paver is working on a curve, the operator can only roughly control the paving direction through the steering wheel, and it needs to be adjusted continuously during the process, which not only affects the construction quality but also increases the operator's work intensity

Method used

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  • Electro-hydraulic steering system and paving machine

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0019] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention, and the terms used in the description of the present invention herein are only to describe specific implementations The purpose of the example is not intended to limit the present invention.

[0020] Such as figure 1 As shown, an electro-hydraulic steering system includes a filter 1, a quantitative pump 2, a priority valve 3, a steering gear 4, a steering cylinder 5, ...

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Abstract

The invention discloses an electro-hydraulic steering system composed of a metering pump, a filter, a priority valve, a steering gear, an electric control steering valve, a steering oil cylinder, sensors and a controller. The filter is connected with an inlet of the metering pump; an inlet of the priority valve is connected with an outlet of the metering pump; a priority opening of the priority valve is connected with an inlet of the electric control steering valve; a bypass orifice of the priority valve can be connected into other hydraulic loops; an outlet and an oil returning port of the electric control steering valve are connected with an oil inlet and an oil returning port of the steering gear; a load feedback oil port of the electric control steering valve is connected with load feedback oil ports of the steering gear and the priority valve; two steering main oil ports of the electric control steering valve are connected with a left cavity and a right cavity of the steering oil cylinder correspondingly; and four steering branch oil ports of the electric control steering valve are connected with four steering oil ports of the steering gear correspondingly. According to the electro-hydraulic steering system, a traditional steering mode is kept, vehicle steering is convenient, meanwhile, an electric control steering system is additionally arranged based on the traditional steering mode, a traditional steering system and the electric control steering system are arranged parallelly, does not interfere with each other and are easily switched.

Description

technical field [0001] The invention relates to an electro-hydraulic steering system and a paver, belonging to the application field of engineering machinery electro-hydraulic control. Background technique [0002] At present, the steering system of wheeled paver is mainly composed of steering pump, steering gear, oil cylinder, etc., and it mainly controls the flow and direction of oil entering the oil cylinder through the steering gear to realize steering. When the paver is working on a curve, the operator can only roughly control the paving direction through the steering wheel, and it needs to be adjusted continuously during the process, which not only affects the construction quality but also increases the operator's work intensity. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the present invention provides an electro-hydraulic steering system and a paver, the steering control is more precise, and the operator's work inten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D5/06
CPCB62D5/04B62D5/06
Inventor 马冰陈怀贤张旭光
Owner XCMG CONSTR MACHINERY
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