Deepwater winch provided with brake structure

Abstract

The invention discloses a deepwater winch provided with a brake structure. The deepwater winch comprises a main winding drum, wherein a brake band is arranged on the outer side of the main winding drum, one end of the brake band is rotationally connected to a brake support, and the other end of the brake band is rotationally connected to a telescopic structure; the lower end of the telescopic structure is rotationally connected with a connecting rod; the connecting rod is rotationally connected with the brake support; a first hydraulic cylinder is arranged on the brake support; the end of a piston rod of the first hydraulic cylinder penetrates through the brake support and is hinged to the connecting rod; a stop block perpendicular to the piston rod is arranged on the piston rod of the first hydraulic cylinder; a spring is arranged between the stop block and the bottom of the first hydraulic cylinder; the upper surface of the other end of the connecting rod is a plane; a first through hole is formed in the brake support above the plane; a fixed block is fixed above the first through hole; a third screw hole is formed in the fixed block; and a second screw is arranged inside the third screw hole. With the adoption of the brake structure of the deepwater winch, danger caused by free rotation of the main winding drum due to the fact that the brake band does not brake tightly due to situations such as power failures and the like can be prevented.

Description

technical field [0001] The invention relates to the technical field of marine machinery, in particular to a deep-water winch with a brake structure, which is a device installed on a fishing boat for trawling. Background technique [0002] A deep water winch is a fishing device installed on a fishing trawler, and an existing deep water winch generally includes a reel, a hydraulic motor, a brake system and a rope arrangement. The traditional deep-water winch is generally integrated, and the machine is transported to the ship for assembly after the overall installation. However, due to the overall large size of the deep-water winch, it is inconvenient to install. [0003] The operation of existing braking system generally all relies on manpower to pull and release 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 w...

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

In order to improve safety and adapt to the braking of large winches, the brake bands of many large winches are driven by hydraulic cylinders. Generally, the expansion and contraction of the hydraulic cylinders drive the tension and release of the brake bands. In most cases, the brake bands It needs to be tightened, and it is only released when the drum is working. The general brake system requires the hydraulic cylinder to keep contracted all the time, and the components in the hydraulic circuit are always in working condition, so the service life of the hydraulic components will be short, which is easy to cause damage

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