Towing winch with double-end screws

Abstract

The invention discloses a towing winch with double-end screws. The towing winch comprises a drum. The brake belt is arranged on the outer side of the drum. A jacking device is arranged below the brake belt and comprises a first support. A pulley is arranged on the first support. A pull rod of the brake belt comprises two side connecting portions, and the two side connecting portions are provided with a second screw hole and a third screw hole respectively, wherein the second screw hole and the third screw hole are opposite in threaded direction. A third screw is arranged in the second screw hole and the second screw hole and two ends thereof are different in threaded direction. When the brake belt is loosened, the jacking device can jack the brake belt to enable the brake belt to be quickly separated from the drum, so that the problem that the brake belt is attached to the drum and hard to separate from the same due to dead weight is prevented, friction between the jacking device and the brake belt can be reduced by the pulley, and abrasion is reduced as well. Further, the length of the pull rod can be adjusted through the third screw, and accordingly, mounting requirements of the brake belt can be met, quick braking can be realized by shortening the length of the pull rod after use for a long time.

Description

technical field [0001] The invention relates to marine equipment, in particular to a tow cable winch, in particular to a tow cable winch with a two-way screw rod. 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. The winch braking device mainly plays the role of fixing and releasing the ship's cables. [0003] The braking device of the existing winch is generally a brake band, and the operation of the existing brake band generally relies on manpower to tighten and release the drum. 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 th...

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

[0005] 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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