Hydraulic control system and hydraulic control method

A hydraulic control system and hydraulic system technology, applied in the hydraulic field, can solve problems such as unsatisfactory micro-movement performance, large engine type selection limitations, and complicated system piping, etc., to achieve reduced impact, low heat generation, and hydraulic piping. simple effect

Active Publication Date: 2010-12-22
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a hydraulic control system and a hydraulic control method to solve the problem that the engine type selection limitation of the hydraulic control system in the prior art is relatively large, or the pipeline of the system is complicated, the calorific value is large, there are many fault sources, and the action The fretting performance is not ideal

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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] figure 1 It is a schematic diagram of the structure of the hydraulic control system according to the embodiment of the present invention.

[0024] Such as figure 1 As shown, the hydraulic control system in the embodiment of the present invention mainly includes the first motor M1 and the first closed pump P1 connected thereto, the second motor M2 and the second closed pump P2 connected thereto, and the hydraulic motor P3. The hydraulic motor P3 is used as the actuator.

[0025] Among them, the first closed pump P1, the second closed pump P2 and the hydraulic motor P3 are connected in parallel, that is, the high pressure port A1 of the first closed pump P1, the high pressure port A2 of...

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Abstract

The invention discloses a hydraulic control system and a hydraulic control method to solve the problems that an engine of the hydraulic control system has high model selection limitation, or the system has complicated pipelines, high heat productivity, many fault sources, not ideal micromotion performance of motions and the like in the prior art. The hydraulic control system comprises a first closed pump and a first engine connected with each other, a second closed pump and a second engine connected with each other, and a hydraulic motor, wherein the first closed pump, a second closed pump and the hydraulic motor are connected in parallel. Through the technical scheme, the hydraulic control system has the advantages of wider engine model selection range, higher reliability and better micromotion performance.

Description

technical field [0001] The present invention relates to the field of hydraulic technology, in particular to a hydraulic control system and a hydraulic control method. Background technique [0002] With the development of the economy, super-large tonnage cranes have been widely used in production and construction. The hydraulic control system mainly includes open systems and closed systems. Specifically, it includes open systems with double pumps in parallel and single pumps. closed control system. [0003] The closed control system driven by a single pump is only driven by a single pump, and the engine of the single pump must meet the needs of large-tonnage cranes, so the selection is limited. For the open system with two pumps connected in parallel, although it can solve the problem of difficult selection of super large tonnage engines, the open system has complex pipelines, high heat generation, and many fault sources, so the fretting performance of the action is not idea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/18
CPCF15B15/18F15B2211/20569F15B7/006F15B2211/20576F15B2211/763B60W10/06F15B2211/20546F15B2211/27F15B2211/20561F16H61/44F15B2211/761B60K5/08
Inventor 詹纯新刘权张源宋春阳王少军袁知华
Owner ZOOMLION HEAVY IND CO LTD
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