Brake mechanism of marine gearbox

Abstract

The invention discloses a brake mechanism of a marine gearbox. The brake mechanism comprises a case body, a box body, an insertion rod and an electric pushing rod, wherein an insertion hole is formedin one side of the case body; the inner part of the insertion hole is rotatably connected with a rotary shaft; one end of the rotary shaft is fixedly connected with a gear; the peripheral outer side of one end, away from the gear, of the rotary shaft is fixedly connected with a first magnet; a tube body is connected on the peripheral outer part of the rotary shaft in a sleeving mode; and the tubebody is rotatably connected to one side of the case body through a first bearing. In a using process, an electric pushing rod switch controls the electric pushing rod to extend while brake effect needs to achieve for the rotary shaft, so that a friction block is in contact with a friction pad, a fixed circular disc stops rotation, the brake effect for the rotary shaft is achieved as a second magnet inside the tube body applies repulsive force to the first magnet in a moving process, and the friction block is not in direct contact with the rotary shaft, and therefore, abrasion on the rotary shaft is reduced, replacing times of the rotary shaft are reduced, and labour intensity of a worker is reduced.

Description

technical field [0001] The invention relates to the technical field of gearboxes, in particular to a braking mechanism of a marine gearbox. Background technique [0002] The marine gearbox is the main propulsion transmission device of the ship's power system. It has the functions of reversing, clutching, decelerating and bearing propeller reasoning. It is configured with a diesel engine to form a ship's power system. It is widely used in various engineering ships, fishing boats, yachts, etc. Important key equipment for industry. [0003] The gear box in the prior art still has defects in the process of use: [0004] 1. The braking system of the gear box in the prior art directly performs resistance friction on the rotating shaft or the rotating shaft disk, so that the rotating shaft stops rotating, but the damage to the rotating shaft and the rotating shaft disk is relatively large, and the rotating shaft or the rotating shaft disk needs to be replaced, and The disassembly...

AI Technical Summary

Problems solved by technology

[0004] 1. The braking system of the gearbox in the prior art is to directly perform resistance friction on the rotating shaft or the rotating shaft disc, so that the rotating shaft stops rotating, but the damage to the rotating shaft and the rotating shaft disc is relatively large, and the rotating shaft or the rotating shaft disc needs to be replaced, and The disassembly of the rotating shaft and the rotating shaft disk is complicated, which greatly increases the labor intensity of the staff

[0005] 2. During the rotation process of the gearbox in the prior art, the internal gears mesh with each other and rotate, and the friction will generate high heat. If the temperature is too high, the machine will run dry, causing burning of bearings and gears, and finally the machine will be scrapped , which greatly affects the service life of the gearbox

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