MODULAR COMBINED ELECTRO-HYDRAULIC MULTI-WAY VALVE SYSTEM USING COMPACT TWO-WAY CARTRIDGE VALVES

摘要

The invention is to provide a modular combined electro-hydraulic multi-way valve system using compact two-way cartridge valves. Two sets of seat valve main stages including two compact two-way cartridge valves separately are used to control two reversible controlled cavities, a cartridge pressure compensation control assembly is used to control load compensation, and valve body forms the main part of electro-hydraulic multi-way valve; The main body has the function of self-supply-oil pilot control by two side flange control plates; The main part of electro-hydraulic multi-way valve, side flange control plates, pilot stages and auxiliaries combine sandwich self-supply-oil high-voltage electro-hydraulic multi-way valve reversing league with four main ports P, T, A, B and multiple control ports Pc, Tc, Ls and auxiliary ports; The system can satisfy the requirements of higher efficiency, energy saving, low emission and diversity raised by equipment manufacturers through more kinds and more reasonable modular combined configurable solutions.

主权项

1. A modular combined electro-hydraulic multi-way valve using compact two-way cartridge valves, comprising:
two sets of seat valve main stages including two compact two-way cartridge valves separately configured to control two reversible controlled cavities; a cartridge pressure compensation control assembly configured to control load compensation; valve body forming a main part of electro-hydraulic multi-way valve for self-supply-oil pilot control by two side flange control plates; mounting holes for four symmetrically placed two-way cartridge valves and a mounting hole for an independent cartridge valve in the valve body; and the flange control plates by two sides configured to connect and control the symmetrically placed four seat valve main stages; wherein the main part of electro-hydraulic multi-way valve, side flange control plates, pilot stages and auxiliaries in combination sandwich self-supply-oil high-voltage electro-hydraulic multi-way valve reversing league with four main ports P, T, A, B and multiple control ports Pc, Tc, Ls and auxiliary ports, wherein the outer main ports are configured to be connected to power and working machinery, wherein the main part of new type sandwich electro-hydraulic multi-way reversing league includes two sets of seat valve main stages of compact two-way cartridge valves, each set with two main ports, constituting four in total, and being configured to be be symmetrically placed and configured, and wherein the two sets of seat valve main stages form the four controllable main ports of electro-hydraulic multi-way valve.