Hydraulic pushing driving device in piston pushing centrifuge

Abstract

The invention discloses a hydraulic pushing driving device in a piston pushing centrifuge which is simple in installment and can improve the reliability. The hydraulic pushing driving device comprises a cylinder body and a pushing rod arranged inside the cylinder body in a penetrated mode; a piston is sleeved on the pushing rod in the inner cavity of the cylinder body; an oil line reversing drum is arranged between the piston and the pushing rod; the piston consists of a piston body and piston seats placed at the two ends of the piston body; mutually matched oil lines are arranged among the piston, the oil line reversing valve, the cylinder body and the pushing rod; and a reversing driving rod for switching the reversing oil lines of the oil line reversing drum is arranged between piston seats in a penetrated mode. According to the hydraulic pushing driving device in the piston pushing centrifuge, the hydraulic pressure distribution and the reversing components are skillfully integrated in the piston cylinder body, so that a reversing motion and a pushing reciprocating motion are simultaneously finished; with the adoption of the integrated structure, the installment of the whole pushing driving device becomes very simple, and the non-blind area reversion of the oil line reversing drum is achieved, so that the working process is very stable and reliable; and the pollution of the material in the rotary drum because of oil leakage can be avoided.

Description

technical field [0001] The invention relates to a piston pusher centrifuge, in particular to a hydraulic pusher drive device in the piston pusher centrifuge. Background technique [0002] The pusher drive device in the piston pusher centrifuge is usually divided into two types: mechanical or hydraulic. The pusher drive device rotates at the same speed and in the same direction as the drum, and pushes the material back and forth with the pusher plate. At present, the hydraulic pusher driving device is also divided into various forms, which are mainly reflected in the differences in the structure of the oil cylinder and piston, the way of oil intake, and the hydraulic control system. Commonly used hydraulic pusher drive devices, the hydraulic oil distribution and reversing mechanism and other components and oil cylinders are independent of each other, and the oil passages between them are connected by oil pipes and pipe joints. The structure is messy and it is troublesome to i...

AI Technical Summary

Problems solved by technology

Commonly used hydraulic pusher drive devices, the hydraulic oil distribution and reversing mechanism and other components and oil cylinders are independent of each other, and the oil passages between them are connected by oil pipes and pipe joints. The structure is messy and it is troublesome to install; Too many pipe joints will easily cause oil leakage and pollute the materials in the drum. Moreover, oil leakage will reduce the pressure of the oil circuit and affect the normal operation of the entire pushing device

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