Marine gearbox inching hydraulic control valve

Abstract

The invention relates to a hydraulic control valve, and in particular relates to a marine gearbox inching hydraulic control valve. The hydraulic control valve provided by the invention mainly solves the technical problem that the existing hydraulic control device, without an inching control function or functions of high-pressure control and low-pressure pressure regulation and control, cannot meet the requirements of marine gearboxes for vessels, scientific research vessels, life saving boats, special fishing catching work ship, leisure yachts and other high-end ship. The hydraulic control valve provided by the invention comprises a control valve, wherein the control valve is connected with an inching valve, and the control valve is composed of a low pressure regulating and controlling mechanism, a high pressure control mechanism and a direction control structure; the inching valve is composed of an inching flow control mechanism and an inching position control mechanism, a P1 main oil line and a P2 main oil line which are connected in series are arranged in the control valve; and the control valve is communicated with the inching flow control mechanism of the inching valve through the P1 main oil line, the inching flow control mechanism is communicated with the direction control structure through P1 main oil line, and the low pressure regulating and controlling mechanism is communicated with a high pressure control mechanism through the P2 main oil line.

Description

technical field [0001] The invention relates to a hydraulic control valve, in particular to a marine gearbox micro-hydraulic control valve. Background technique [0002] The marine gearbox hydraulic control device is a hydraulic component that controls the transmission and distribution of hydraulic power by the marine gearbox. A Chinese patent discloses a hydraulic control device for a small marine gearbox (authorized announcement number: CN2670232Y), which includes a valve body, a reversing valve, a pressure valve, and a delay valve. After the reversing valve, pressure valve, and delay valve are connected in series Installed in the valve body in turn, one side of the delay valve is next to a large spring, the reversing valve is connected with the delay valve through the oil chamber and the check valve; There is a limit screw, which is embedded in the turnover groove of the reversing valve; the inner side of the reversing valve is connected with a pressure valve, and a stee...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a micro-motion hydraulic control valve for a marine gearbox, which mainly solves the problem that the hydraulic control device in the prior art does not have the micro-motion control function, high-pressure pressure control and low-pressure pressure regulation function, so it cannot Meet the technical problems of high-end marine gearboxes such as ships, scientific research ships, lifeboats, special fishing boats, leisure yachts, etc.

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