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Hydraulic motor control system and full-hydraulic walking-type pile driving frame

A technology of hydraulic motor and control system, applied in the direction of servo motor, servo motor assembly, fluid pressure actuating device, etc., can solve the problems of many pilot proportional multi-way valves and increase in cost, and achieves reduction of hydraulic components, simple structure and simplification The effect of the hydraulic system

Active Publication Date: 2012-10-24
SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO +1
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hydraulic motor control system and a fully hydraulic walking piling frame, which aims to solve the problem of increased cost caused by a large number of pilot proportional multi-way valves in the prior art

Method used

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  • Hydraulic motor control system and full-hydraulic walking-type pile driving frame

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Embodiment Construction

[0014] The present invention will be described in detail below with reference to the accompanying drawings and examples. 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.

[0015] Such as figure 1 As shown, the control system of this embodiment includes two winch motors 10 , a hydraulically controlled pilot proportional multi-way reversing valve 30 and two three-position four-way valves 20 .

[0016] Each hoist motor 10 includes a first motor oil port C and a second motor oil port D. By controlling the oil inlet and outlet directions of the hoist motor 10, the rotation direction of the hoist motor can be controlled, thereby controlling the rotation of the hoist direction.

[0017] In the hydraulic motor control system, a hydraulic control pilot proportional multi-way reversing valve 30 completes control requirements such as speed regulation of each winch motor 1...

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Abstract

The invention provides a hydraulic motor control system and a full-hydraulic walking-type pile driving frame. The hydraulic motor control system comprises two or more than two hydraulic motors, a proportional multiple directional reversing valve and two or more than two reversing valves, wherein each hydraulic motor comprises a first motor oil port and a second motor oil port; the proportional multiple directional reversing valve comprises a pressure oil port, an oil discharge outlet, a first oil outlet and a second oil outlet; the reversing valves correspond to the hydraulic motors and are connected with the hydraulic motors in parallel; each reversing valve comprises a first oil port, a second oil port, a third oil port and a fourth oil port; each first oil port is communicated with the first oil outlet; each second oil port is communicated with the second oil outlet; each third oil port is communicated with the first motor oil port of the corresponding hydraulic motor; and each fourth oil port is communicated with the second motor oil port of the corresponding hydraulic motor. According to the invention, the sequential working of a plurality of hydraulic motors can be implemented in a simple mode; the hydraulic system is simplified; hydraulic elements are reduced; and the cost is reduced.

Description

technical field [0001] The invention relates to the field of hydraulic control, more specifically, to a hydraulic motor control system and a fully hydraulic walking pile driving frame. Background technique [0002] In the prior art, the alternate operation of multiple winch motors is achieved by controlling the corresponding pilot proportional multi-way valves with respective pilot handles to control each winch motor, so as to realize the action and switching of each winch motor. In the multi-winch motor control system in the prior art, each winch motor is equipped with a number of proportional multi-way valves and corresponding pilot handles. Therefore, the number of proportional multi-way valves and the number of corresponding pilot handles are relatively large. This increases the cost of the control system and causes unnecessary waste. Contents of the invention [0003] The purpose of the present invention is to provide a hydraulic motor control system and a fully hydr...

Claims

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Application Information

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IPC IPC(8): F15B11/16F15B13/06
Inventor 陆军刘发民乔国华朱长林刘亮
Owner SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO
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