Winch drum brake device

Abstract

The invention relates to a winch drum brake device, and belongs to the technical field of winch braking. The winch drum brake device comprises a front fixed support and a rear fixed support, wherein arotating shaft is arranged between the two fixed supports through a bearing; a wheel-shaped winch drum is fixed on the rotating shaft through a positioning key; a large gear ring is fixed on the rearside of an outer ring of the winch drum through a plurality of transverse bolts; a friction drum tightly attached to the large gear ring is fixed on the front side of the outer ring of the winch drumthrough a plurality of longitudinal bolts; horizontal outward brake cylinders are fixed on the left and right sides of the fixed support on the front side; and arc brake shoes matched with the innerring surface of the winch drum are fixed at the end parts of piston rods of the brake oil cylinders. The braking device is designed in a symmetrical arrangement mode of double braking oil cylinders, and is directly braked on the winch drum, the braking force acts on the source needing braking, the brake torque is large, the safety factor is high, the brake effect is good, the brake force is symmetrical and uniform, no impact is caused to the whole machine, the winch drum does not need special manufacture, the cost is low, the occupied space is small, the installation is convenient, and the useis convenient.

Description

technical field [0001] The invention belongs to the technical field of winch braking, in particular to a winch drum braking device. Background technique [0002] In the existing mining transportation machinery technology, the more commonly used technology is the endless rope continuous winch with double-speed reducer. The endless rope continuous winch of this structure is driven by the motor through the coupling to drive the reducer to drive the final pinion to run, and then by The last stage small gear drives the final stage large gear to run, and the final stage large gear is integrated with the friction reel, thus driving the friction reel to wind the rope and then pull the work (such as image 3 shown). Nowadays, the commonly used braking device of endless rope continuous winches is the electro-hydraulic push rod brake. The electro-hydraulic push rod brake acts on the brake wheel of the second shaft of the reducer, and cannot directly brake the drum, and its braking perf...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the electro-hydraulic push rod brake cannot directly brake the drum in the current winch brake, its braking performance is poor, and there is a safety risk of brake failure and wheel brake braking, the drum needs special production, the structure To solve the problems of complexity, large space occupation, long processing cycle and high manufacturing cost, the present invention provides a winch drum braking device

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