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Hydraulic driving and steering system and overhead operation machinery

A steering system and hydraulic technology, applied in the direction of power steering mechanism, steering mechanism, fluid steering mechanism, etc., can solve the problems that aerial work machinery cannot be realized, reduce energy consumption and transition time, increase driving speed, and improve flexibility Effect

Active Publication Date: 2020-04-07
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 driving and steering system and overhead operation machinery
  • Hydraulic driving and steering system and overhead operation machinery
  • Hydraulic driving and steering system and overhead operation 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 driving and steering system. The system comprises a walking control valve capable of distributing and collecting flow, a first hydraulic motor, a second hydraulic motor, a third hydraulic motor, a fourth hydraulic motor, a steering control valve, a plurality of steering oil cylinders and an in-situ steering switching valve, wherein the first hydraulic motor, thesecond hydraulic motor, the third hydraulic motor and the fourth hydraulic motor are respectively used for driving corresponding wheels; each hydraulic motor is connected with the walking control valve such thatl each hydraulic motor can rotate forwards and backwards through the walking control valve, and the steering control valve controls the corresponding wheels to turns through each steeringoil cylinder; the second hydraulic motor and the fourth hydraulic motor are connected with the walking control valve through a first reversing valve and a second reversing valve so as to control switching between two-wheel drive and four-wheel drive; and the first hydraulic motor and the second hydraulic motor are connected with the walking control valve through an in-situ steering switching valveso as to achieve in-situ turning. The invention further discloses an overhead operation machine. In-situ turning of equipment can be achieved, and switching between two-wheel drive and four-wheel drive can be conducted.

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 movable 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 c...

Claims

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Application Information

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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