Synchronous drive control system and engineering machinery

A synchronous drive and control system technology, applied in mechanical equipment, fluid pressure actuation devices, servo motors, etc., can solve the problems of high cost, complex structure of servo closed-loop feedback system, and low synchronization accuracy.

Inactive Publication Date: 2010-10-20
BEIJING SANY HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the synchronous drive control system usually uses two parallel hydraulic cylinders, and the hydraulic pump supplies oil to the two hydraulic cylinders at the same time. In order to realize the synchronous action of the two hydrauli...

Method used

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  • Synchronous drive control system and engineering machinery
  • Synchronous drive control system and engineering machinery
  • Synchronous drive control system and engineering machinery

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Embodiment Construction

[0028] The core of the present invention is to provide a synchronous drive control system, which can realize the synchronous action of two oil cylinders, has a simple structure, is less affected by external loads, and has low cost. Another core of the present invention is to provide a construction machine with the aforementioned synchronous drive control system.

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Please see figure 1 , figure 1 It is a principle schematic diagram of a specific embodiment of the synchronous drive control system provided by the present invention.

[0031] Such as figure 1 As shown, the synchronous drive control system provided by the present invention includes a hydraulic pump 1, a reversing valve 2, a first double-piston rod cyli...

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Abstract

The invention relates to the technical field of engineering machinery, and discloses a synchronous drive control system, which comprises a hydraulic pump, a change valve, and a first double rod cylinder and a second double rod cylinder which have the same capacity. The oil inlet of the hydraulic pump is communicated with an oil tank, while the oil outlet is communicated with the oil inlet of the change valve; the first oil outlet of the change valve is communicated with a left cavity of the first double rod cylinder; a right cavity of the first double rod cylinder is communicated with a left cavity of the second double rod cylinder; a right cavity of the second double rod cylinder is communicated with the second oil outlet of the change valve; and the return port of the change valve is communicated with the oil tank. The synchronous drive control system can realize synchronous action of two cylinders, and has the advantages of simple structure, small influence by external load and low cost. The invention also discloses engineering machinery provided with the synchronous drive control system.

Description

technical field [0001] The present invention relates to the technical field of construction machinery, in particular to a synchronous drive control system, and also relates to a construction machine with the aforementioned synchronous drive control system. Background technique [0002] In the field of construction machinery, the synchronous action of two different mechanical parts is usually realized by a synchronous drive control system. The synchronous drive control system generally includes two oil cylinders. The two oil cylinders are respectively connected to the mechanical parts that need to be synchronized. The oil pump and the control system drive the two oil cylinders to perform synchronous expansion and contraction, so as to realize the synchronous action of the two mechanical parts. [0003] In the prior art, the synchronous drive control system usually uses two parallel hydraulic cylinders, and the hydraulic pump supplies oil to the two hydraulic cylinders at the ...

Claims

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Application Information

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IPC IPC(8): F15B11/22F15B13/06F15B15/28
Inventor 胡堂堂刘海斌
Owner BEIJING SANY HEAVY MASCH CO LTD
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