A programmable automatic control grouting pump for shield machine

Abstract

The invention relates to the field of shield machine grouting construction, in particular to a programmable automatic control grouting pump for a shield machine, which includes a support, a discharge mechanism, a material suction mechanism, a delivery cylinder mechanism, a water tank, a pumping oil cylinder and Hydraulic control valve group, the discharge mechanism, material suction mechanism, conveying cylinder mechanism and pumping cylinder are all symmetrical double-set structures; the hydraulic control valve group controls the action of the discharge mechanism and the material suction mechanism, and the hydraulic control valve group controls The pumping oil cylinder drives the conveying cylinder mechanism to reciprocate to realize mortar suction and pumping. The programmable automatic control grouting pump for the shield machine of the present invention can be independently controlled and logically controlled by programming, etc., and has a high degree of automation; and the hydraulic pressure The control valve group has a compact structure, occupies less space, and has fewer components to save costs; it can not only be used for synchronous grouting and bentonite transportation in shield construction, but also can realize alternate and continuous working conditions of double pumping systems. very broad.

Description

technical field [0001] The invention relates to the field of shield tunneling machine grouting construction, in particular to a programmable automatic control grouting pump for shield tunneling machines. Background technique [0002] As an important supporting equipment of the shield machine, the grouting pump needs to quickly and efficiently inject the mixed cement slurry into the gap between the tunnel wall and the segment due to the advancement of the shield body according to the set pressure, so as to control the settlement of the ground surface. At present, after the mud pump works for a long time, the seal and parts in contact with the mortar are severely worn, and the service life of the key parts is short, resulting in a decrease in grouting pressure and poor grouting continuity; and a complex control system is used, which is costly and difficult to control. The precision is not ideal. Contents of the invention [0003] The purpose of the present invention is to o...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of short working life, poor sealing of the pump body, poor grouting pressure and continuity, high cost and complex structure of the control system in the existing shield machine grouting pump, so as to realize a synchronous or Alternate automatic grouting operation, good sealing performance, high grouting continuity and reliability, low control system cost, relatively simple structure programmable automatic control grouting pump for shield machine

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