Hydraulic based control system, method, hoisting device and crawler traveling equipment

A control system and hydraulic technology, applied in the direction of fluid pressure actuation system components, fluid pressure actuation system testing, mechanical equipment, etc., can solve problems such as low safety, improve safety, improve maneuverability, and reduce opening shocks Effect

Active Publication Date: 2022-08-02
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a hydraulic control system, method, hoisting equipment and crawler-type walking equipment, in order to solve the problem of low safety of the hydraulic control system in the prior art

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  • Hydraulic based control system, method, hoisting device and crawler traveling equipment
  • Hydraulic based control system, method, hoisting device and crawler traveling equipment
  • Hydraulic based control system, method, hoisting device and crawler traveling equipment

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Embodiment Construction

[0072] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0073] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

[0074] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitl...

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Abstract

The invention discloses a hydraulic-based control system, method, hoisting equipment and crawler-type traveling equipment. The control system includes: a handle for displacement according to the user's operation; a closed circuit, the circulation direction of the hydraulic oil in the closed circuit includes a first circulation direction and a second circulation direction; when the circulation direction of the hydraulic oil is the first circulation direction In the case of the circulation direction, the mechanical device performs an ascending motion; when the circulation direction of the hydraulic oil is the second circulation direction, the mechanical equipment performs a descending motion; and the controller, connected with the handle and the closed circuit, is configured to: When the mechanical equipment is descending, the closed circuit is controlled to output hydraulic oil to the first circulation direction. The output hydraulic oil can make up for the speed decline caused by the leakage of the closed pump and motor of the closed circuit, so as to realize the micro-control of the hydraulic-based control system. This can improve the maneuverability of mechanical equipment and reduce the opening shock, thereby improving the safety of hydraulic-based control systems.

Description

technical field [0001] The present invention relates to the technical field of mechanical equipment control, in particular, to a hydraulic-based control system, method, lifting equipment and crawler-type traveling equipment. Background technique [0002] At present, the hydraulic-based control system has become a key application technology for mechanical equipment due to its advantages of energy saving, high energy density, and small number of hydraulic components. open system. Crawler-type mobile equipment is also widely used hydraulic-based control systems for travel drives. [0003] When the mechanical equipment is in operation, there is internal leakage in the closed pump and the motor itself. Assuming that the oil discharge port of the closed pump is the T port, the motor oil discharge port is the U port, and the sum of the leakage of the T port and the U port is ΔQ, then ΔQ will cause the heavy object to fall, and its falling speed is proportional to ΔQ: ΔV= αΔQ, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/20B66C13/56F15B21/08F15B19/00
CPCB66C13/20B66C13/56F15B21/087F15B19/00
Inventor 罗贤智李怀福刘宇新赵建阳沈昌武胡廷江郑保密
Owner ZOOMLION HEAVY IND CO LTD
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