Multi-way reversing valve of hydraulic device

Abstract

The invention relates to a multichannel reversing valve of a hydraulic device. The main structure of the multichannel reversing valve consists of a liquid inlet valve, a reversing valve, a throttle reversing valve and a liquid return valve; the liquid inlet valve uses a piston mode to control the oil hydraulic pressure; the common reversing valve and the throttle reversing valve are adopted to carry out dual control for reversing; the reversing valve is assembled by adopting an upper valve body and a lower valve body to form an integrated reversing valve chamber; the revering valve mainly uses a piston rod, a valve core, a one way valve, a liquid feed port, a dual liquid outlet to carry out liquid in and out in turns, thereby completing a reversing function; the throttle reversing valve is provided with a throttle port inside to effectively control a hydraulic oil amount; the reversing valve chamber has large path, high bearing pressure and small thickness; the valve chamber adopts a punch forming technology, the valve body has high intensity, high service time, material saving, rapid reversing speed which can be increased by 100 percent than the prior art, high efficiency and good universality; the device has a compact structure, reasonable design and a small size and is safe, stable, sensitive, rapid and reliable and is a very perfect universal multichannel reversing valve of the hydraulic device and quite suitable for underground operation in a coal mine under harsh environments.

Description

technical field [0001] The invention relates to a multi-way reversing valve of a hydraulic device, which belongs to the technical field of design and manufacture of coal mine equipment parts. Background technique [0002] The hydraulic device is used in many coal mine equipment and heavy equipment due to its stable operation, high strength and explosion-proof performance. [0003] The hydraulic device is mainly composed of a hydraulic oil tank, a hydraulic oil pump, a hydraulic pipeline, a hydraulic motor, a hydraulic control valve, and a hydraulic directional valve. The hydraulic directional valve also has various forms, such as: one-way directional valve, two-way directional valve, multiple Directional reversing valves, etc., due to their different structures and different processing methods of parts, reversing valves will also have many disadvantages, for example: some parts have low strength and cannot withstand the impact of hydraulic oil, and some structures are not re...

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Problems solved by technology

[0003] The hydraulic device is mainly composed of a hydraulic oil tank, a hydraulic oil pump, a hydraulic pipeline, a hydraulic motor, a hydraulic control valve, and a hydraulic directional valve. The hydraulic directional valve also has various forms, such as: one-way directional valve, two-way directional valve, multiple Directional reversing valves, etc., due to their different structures and different processing methods of parts, reversing valves will also have many disadvantages, for example: some parts have low strength and cannot withstand the impact of hydraulic oil, and some structures are not reasonable enough , the reversing speed is slow, the efficiency is low, and it is not accurate enough. Some of them are large in size and occupy a large space. Most of the higher-grade reversing valves rely on imports

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