Towing winch

Abstract

The invention discloses a towing winch which comprises a winding displacement device. A through hole is formed by a first rotary shaft and a second rotary shaft of the winding displacement device in an encircled manner, a drum is arranged on the rear side of the winding displacement device, a brake strap is arranged on the outer side of the drum, the upper end of the first rotary shaft is rotationally connected with a frame, the lower end of the first rotary shaft is detachably connected with the frame, a draw bar of the brake strap comprises two side connecting portions, a second screw hole and a third screw hole which are opposite to each other are formed in the two connecting portions, the thread direction of the second screw hole is opposite to the thread direction of the third screw hole, a third screw is arranged in the second screw hole and the third screw hole, and the thread directions of two edges of the third screw are opposite to each other. The towing winch has the advantages that the upper end of the first rotary shaft of a guide wheel is rotationally connected with the frame, and the first rotary shaft cannot fall down when rotation is required, so that a rope can be safely placed into the through hole or can be safely taken out of the through hole as needed, and one person can push the first rotary shaft to rotate for operation; the length of the draw bar can be adjusted via the third screw, so that mounting requirements of the brake strap can be assuredly met; the length of the draw bar can be reduced after the towing winch is used for a long time, so that the purpose of realizing a quick braking effect can be achieved.

Description

technical field [0001] The invention relates to a marine device, in particular a towline winch, for winding or paying out a cable. Background technique [0002] The towline winch is a kind of marine equipment, which is used when the ship is towed. The general towline winch includes a hydraulic motor, a drum, a cable arrangement and a braking device. [0003] The cable arrangement includes brackets, two-way screws, guide wheels, guide rods and other components. The roller and guide rollers are connected by chain transmission. The guide wheels include a base and a guide part. The two-way screw and the guide rod pass through the wires. The base of the wheel, the two-way screw and the guide rod are parallel, and the guide wheel will move back and forth along the radial direction of the two-way screw and the guide rod when the two-way screw rotates. The frame is composed of two rotating shafts in the frame, and the frame and the two rotating shafts form a wire hole. One end of t...

AI Technical Summary

Problems solved by technology

This structure has the following problems: the brake is manually operated, and the braking of the drum is achieved through the speed of the manual screw rod and the strength of the worker. The strength of the worker and the speed of the screw rod usually cannot meet the needs of large-load ship machinery. The requirements of the working conditions, and the workers are very dangerous when the screw is hand-cranked, and it is easy to cause safety accidents

[0007] Generally, the production accuracy of the brake band cannot meet the design requirements, or the brake band cannot meet the use requirements due to wear and other reasons after long-term use, which will make the braking speed of the brake band slow

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