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Control system for great flow of electrohydraulic hammer

A control system and electro-hydraulic hammer technology, which is applied to hammer driving devices, manufacturing tools, light impact tools, etc., can solve the problems affecting the striking frequency of large-tonnage electro-hydraulic hammers, achieve long continuous rehitting time, and increase striking frequency , the effect of simple system

Inactive Publication Date: 2008-01-09
JINXI AXLE CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical difficulty that the maximum oil supply in the existing electro-hydraulic hammer striking control system cannot meet the demand of the flow rate of the large-tonnage electro-hydraulic hammer, which affects the striking frequency of the large-tonnage electro-hydraulic hammer, and provides a system The control system of electro-hydraulic hammer with large flow rate is simple, has long continuous rehitting time, high sensitivity of operation control, convenient adjustment and maintenance, and can increase the striking frequency of large-tonnage electro-hydraulic hammer

Method used

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  • Control system for great flow of electrohydraulic hammer

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Embodiment Construction

[0008] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0009] As shown in the accompanying drawings, the control system of the large flow rate of the electro-hydraulic hammer in this embodiment includes an accumulator 2, a two-way cartridge valve 4 and a throttle valve 5 for controlling the striking system, wherein: it also includes a manual main The control valve (three-position four-way manual reversing valve) 1 and the two-way cartridge valve 3 installed in the oil inlet system, the control oil port of the two-way cartridge valve 3 of the oil inlet system and one of the manual main control valve 1 The oil outlet A is connected, the oil inlet of the two-way cartridge valve 3 of the oil inlet system is connected with the accumulator 2 and the oil supply pipe, the oil outlet of the two-way cartridge valve 3 of the oil inlet system is connected with the outlet of the working cylinder 6 The oil port...

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Abstract

The present invention relates to one kind of control system for great flow of electro-hydraulic hammer, belongs to the field of hydraulic control system for hammering position and energy of electro-hydraulic hammer, and aims at increasing the maximum oil supply to ensure the hammering frequency of large electro-hydraulic hammer. The technological scheme is that the great flow electro-hydraulic hammer control system consists of an energy accumulator, a two-way inserted valve and a throttle valve for controlling the hammering system, as well as a manual main control valve and a two-way inserted valve in the oil feeding system, The two-way inserted valve in the oil feeding system has a controlling oil port connected to the oil outlet of the manual main control valve, an oil inlet connected to the energy accumulator and the oil supply pipe, and an oil outlet connected to the work oil cylinder.

Description

technical field [0001] The invention relates to a large-flow control system for an electro-hydraulic hammer, which belongs to a hydraulic control system for controlling the strike position and energy of the electro-hydraulic hammer. Background technique [0002] The existing electro-hydraulic hammer control system generally adopts a pump-accumulator combination system. Because the system is relatively complicated, it cannot guarantee continuous hammering for a long time. Some electro-hydraulic hammers use a secondary control system, but due to the poor operational sensitivity of this control system, it is inconvenient to adjust and maintain, which brings great inconvenience to users. In order to solve the above problems, people have developed an "electro-hydraulic hammer impact control system" as disclosed in CN1390659A. The main control valve in the control system is a three-position three-way manual reversing valve. Although it has achieved the purpose of controlling the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J7/46B25D9/26
Inventor 李永堂郭燕萍
Owner JINXI AXLE CO LTD
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