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Dual-power dual-mode hydraulic pump control system

A control system and dual-mode technology, applied in the field of hydraulic pressure, can solve problems such as the inability to realize the oil supply of dual-power converging actuators

Pending Publication Date: 2022-01-18
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a dual-power dual-mode hydraulic pump control system to solve the problem that when multiple actuators in the system operate at the same time, the existing single-source power plus multiple pumps cannot achieve dual-power confluence to feed Actuator oil supply problem

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  • Dual-power dual-mode hydraulic pump control system
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  • Dual-power dual-mode hydraulic pump control system

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...

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Abstract

The invention discloses a dual-power dual-mode hydraulic pump control system. When the system is started under the single-power or double-power condition, a variable pump can be controlled by an integrated valve set to achieve multiple purposes, the variable pump can be used as a load-sensitive variable pump and a constant-pressure variable pump, the requirement for working of multiple working conditions and multiple executing mechanisms can be effectively met, the system is simple, and the cost is low; and actuating mechanisms can be controlled to act in a double-power confluence mode, so that the problem that the system flow is insufficient when the multiple actuating mechanisms act at the same time under the single-power condition can be solved.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a dual-power dual-mode hydraulic pump control system. Background technique [0002] With the rapid development of my country's transportation construction, more and more construction machinery is used in the construction of road tunnels, railway tunnels, urban subway tunnels, and river-crossing tunnels. Regardless of tunnel construction or indoor and outdoor construction, the equipment is often equipped with dual power drives; usually, electric motors are used as the main power to drive equipment to achieve low-noise, zero-emission construction; at the same time, diesel engine power is used as emergency backup power. Under certain circumstances, diesel engine power can be used for emergency treatment, which improves the reliability of the equipment and can also reduce the risk of increased construction costs due to motor power failure. [0003] As the working conditions of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/06F15B11/17F15B11/22
CPCF15B13/06F15B11/17F15B11/22F15B2211/20546F15B2211/20576F15B2211/782
Inventor 刘伟康磊李晓星范亚雄马昊依廉世宣
Owner CHINA RAILWAY CONSTR HEAVY IND