Split marine gearbox reversing valve and control method thereof
A reversing valve, split type technology, applied in the direction of transmission control, belt/chain/gear, components with teeth, etc., can solve the problems of large reversing force, short service life, poor operation stability, etc., and achieve the goal of reversing The effect of small force, long service life and stable operation
Pending Publication Date: 2020-11-03
HANGZHOU FADA GEARBOX GROUP
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Problems solved by technology
[0004] The invention mainly solves the problems of poor operation stability, large reversing force and short service life in the prior art, and provides a split type marine gearbox reversing valve and its control method, which has the advantages of compact structure, convenient operation and stable operation. Good performance, small reversing force and long service life
Method used
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[0025] Example: such as Figure 1-5 As shown, a split-type marine gearbox reversing valve includes a secondary pressure regulating valve body 11, and the upper end of the secondary pressure regulating valve body 11 is provided with a reversing valve body connected to the oil circuit of the secondary pressure regulating valve body 11 8. The front end of the reversing valve body 8 is provided with a control handle 1 that is nested and fixed with the reversing valve core 7 in a bolt-clamped connection. Cover and the reversing valve front cover 2 fixed with the reversing valve body 8 phase bolts, the reversing valve front cover 2 and the reversing valve core 7 are provided with an O-ring 3 . The reversing valve body 8 is provided with a reversing valve core 7 that is nestedly connected with the reversing valve body 8, and the rear end of the reversing valve core 7 is provided with a nested bolt that is fixedly connected with the reversing valve body 8. The reversing valve rear co...
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The invention relates to a split marine gearbox reversing valve and a control method thereof, and belongs to the technical field of marine gearboxes. The split marine gearbox reversing valve comprisesa secondary pressure regulating valve body, the upper end of the secondary pressure regulating valve body is provided with a reversing valve body communicated with the secondary pressure regulating valve body through an oil path, and the reversing valve body is internally provided with a reversing valve core in bearing type nested connection with the reversing valve body; a reversing valve rear cover fixedly connected with the reversing valve body in a nested type bolted manner is arranged at the rear end of the reversing valve core, a control piston is arranged in the secondary pressure regulating valve body, a secondary valve rear cover is arranged at the rear end of the control piston, a delay piston is arranged between the control piston and the secondary valve rear cover, and an oilinlet channel communicated with the bottom of the secondary pressure regulating valve body is arranged below the control piston; and an oil overflow hole located between the control piston and the delay piston is formed in the side edge of the oil inlet channel, and an oil outlet channel is formed between the oil overflow hole and the oil inlet channel. The split marine gearbox reversing valve hasthe characteristics of being compact in structure, convenient to operate, good in operation stability, small in reversing force and long in service life. Balance of radial force is achieved, and rotating friction force on the reversing valve is reduced.
Description
technical field [0001] The invention relates to the technical field of marine gearboxes, in particular to a split-type marine gearbox reversing valve and a control method thereof. Background technique [0002] The existing reversing valves for small and medium power marine gearboxes are generally provided with a reversing valve at the front end and a secondary pressure regulating valve at the rear. When the gearbox is in neutral, the delay piston returns to the rearmost part. When the gearbox is in gear, part of the working oil enters the clutch to push the friction plate to work, and part of the oil enters the rear working chamber of the delay piston through the throttling adjustment device of the rear cover, pushing The time-delay piston presses the time-delay spring to gradually increase the working pressure to the rated value. The existing reversing valve for small and medium power marine gearboxes generally enters the oil from the end of the reversing valve, that is, b...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16H61/00F16H61/06F16D25/12F15B13/02
CPCF15B13/02F16D25/14F16H61/0009F16H61/065
Inventor 杨朝良卢叶妹郑国华王玉刚王红余戴嘉铭
Owner HANGZHOU FADA GEARBOX GROUP