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Hydraulic drive and steering system and aerial work machinery

A steering system and hydraulic technology, applied in power steering mechanism, steering mechanism, fluid steering mechanism, etc., can solve problems such as the inability of aerial work machinery to achieve, reduce energy consumption and transition time, increase driving speed, and improve flexibility. Effect

Active Publication Date: 2021-04-06
ZOOMLION INTELLIGENT ACCESS MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When working in narrow areas, a small turning radius is required, but the existing aerial work machinery cannot achieve

Method used

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  • Hydraulic drive and steering system and aerial work machinery
  • Hydraulic drive and steering system and aerial work machinery
  • Hydraulic drive and steering system and aerial work machinery

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Embodiment Construction

[0051] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0052] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" are used for descriptive purposes only and should not be construed as indicative or implying relative importance or implicitly specifying the number of technical features indicated, thus qualifying "first", "second", "third", "fourth", "fifth", "sixth", The "seventh" feature may explicitly or implicitly include one or more of said features.

[0053] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed conne...

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PUM

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Abstract

The invention discloses a hydraulic drive and steering system, which includes a traveling control valve capable of diverting and collecting flows, a first hydraulic motor, a second hydraulic motor, a third hydraulic motor and a fourth hydraulic motor respectively used to drive corresponding wheels, a steering Control valves, a plurality of steering oil cylinders connected to each wheel, and in-situ steering switching valves, each hydraulic motor is connected to the travel control valve, so that the forward and reverse rotation of each hydraulic motor can be controlled by the travel control valve, and the steering control valve passes each steering The oil cylinder controls the corresponding wheel steering; the second hydraulic motor and the fourth hydraulic motor are connected to the travel control valve through the first reversing valve and the second reversing valve, so as to be able to control the switching between two-wheel drive and four-wheel drive, and the second hydraulic motor The first hydraulic motor and the second hydraulic motor are connected with the travel control valve through the in-situ steering switch valve, so as to realize the in-situ steering. The invention also discloses a high-altitude operation machine. The invention can realize in-situ steering of equipment, and can switch between two-wheel drive and four-wheel drive.

Description

technical field [0001] The present invention relates to high-altitude working equipment, in particular to a hydraulic drive and steering system, and also to a high-altitude working machine. Background technique [0002] Aerial work platform is a kind of machinery used to lift people, their tools and materials to high-altitude work places, and realize self-propelled through walking hydraulic system. It can be applied to the installation and maintenance of high-altitude equipment in various industries, and provides a mobile elevated platform for operators to solve high-altitude operations quickly and safely. The structure is compact, the steering is flexible, and the width of its site can ensure that the equipment can enter narrow passages and crowded work areas. Its flexibility and safety are more and more accepted by various industries, and its application range is more and more extensive. [0003] The existing walking hydraulic system of aerial work machinery is mainly co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/06B60K17/356B60K17/34
CPCB60K17/356B60K17/358B62D5/061
Inventor 邹婿邵王光辉段建辉肖承丰
Owner ZOOMLION INTELLIGENT ACCESS MASCH CO LTD