Multi-path hydraulic motor speed regulation feedback control valve

Abstract

The invention provides a multi-path hydraulic motor speed regulation feedback control valve, which is capable of enabling systems driving execution assemblies by utilizing multiple hydraulic motors to protect the hydraulic motors under the situation that the execution assemblies are overloaded, solving the problem that the rotating speed cannot be effectively controlled as the multiple hydraulic motors are connected in parallel for use and enabling the rotating speed of the hydraulic motors not to be changed along with the change of loads. The multi-path hydraulic motor speed regulation feedback control valve comprises an oil inlet, an oil return inlet, multiple hydraulic motor connectors, a logical element and a control valve group, wherein the oil inlet is formed in a valve body, the control valve group is formed by multiple control valve units which are connected in parallel, the logical element is respectively connected with the multiple control valve units which are connected in parallel, and each control valve unit comprises an electromagnetic valve, a pressure compensator, a flow control valve and a one-way valve. According to the multi-path hydraulic motor speed regulation feedback control valve provided by the invention, the systems which are used for driving the execution assemblies by utilizing the multiple hydraulic motors can be simultaneously controlled, multiple combination and variation modes can be obtained, at least more than 6 hydraulic motors can be controlled, and the control is convenient.

Description

technical field [0001] The invention relates to a hydraulic motor control valve, in particular to a multi-channel hydraulic motor speed regulation feedback control valve. Background technique [0002] In real production and life, we often encounter the situation that multiple hydraulic motors are used in parallel. For example, multiple detasseling wheels of corn detasseling machine detasseling device are driven by multiple sets of hydraulic motors. When multiple hydraulic motors are used in parallel , the whole device has higher requirements on the hydraulic control oil circuit, this is because on the one hand, the executive assembly needs to keep the hydraulic motor speed stable during the working process, and cannot change with the load change; on the other hand, when the executive assembly is overloaded It can unload in time and protect the hydraulic motor. The working condition of the multi-channel hydraulic motor control valve The working quality and working efficiency...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a multi-channel hydraulic motor speed regulation feedback control valve, which can protect the hydraulic motor when the multi-channel hydraulic motor drives the executive component when the executive component is overloaded, and solve the problem that the parallel use of multiple hydraulic motors cannot be effectively controlled. The speed of the hydraulic motor is not changed by the change of the load

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