Unidirectional load self-braking spiral braking device

Abstract

The invention aims at providing a unidirectional load self-braking spiral braking device, which has the advantages of fast braking respondence, good effect, good heat radiation, capability of ensuring the braking reliability and long service life. In order to reach the effect, the unidirectional load self-braking spiral braking device comprises a braking shaft, transmission shafts are connected at both ends of the braking shaft, the front end of the braking shaft is provided with a fixed element, from the fixed element, an inner friction sheet, an outer friction sheet, an internal threaded press plate torsional spring, a connecting sheet and a braking shaft coupling are sequentially sheathed on the braking shaft, wherein the inner friction sheet and the outer friction sheet are in alternative arrangement, the inner friction sheet and the braking shaft are engaged, outer teeth are arranged on the outer ring of the outer friction sheet, and inner teeth matched with the outer teeth of the outer ring of the outer friction sheet are also arranged in a wound roll. Because of the adoption of the structure, the unidirectional load self-braking spiral braking device of the invention overcomes the problems of heat radiation and the like of cone drum type, expansion ring type and ratchet wheel braking devices in the prior art in a fire-new braking mode, and the invention is particularly suitable for being used on electric hoisting winches.

Description

technical field [0001] The invention relates to a braking device, in particular to a self-made spiral brake with one-way load for winch braking. Background technique [0002] More and more urbanites like to go for a ride in the wild by themselves. If they encounter harsh natural environments, they may get the car into an unfavorable situation and it is difficult to get out. At this time, a winch is needed to help the vehicle get out of trouble. When the winch is working, it is necessary to use brakes to ensure that the heavy objects pulled will not slide down when the motor stops or is damaged. There are many types of brakes used in existing winches, including cone drum type, expanding ring type and ratchet type, each of which has its own advantages and disadvantages. Features, but the service life of the expanding coil winch is short, and the ordinary ratchet winch is easy to drop the rope and drop objects. The application of the cone drum type on the winch is better than t...

AI Technical Summary

Problems solved by technology

When the winch is working, it is necessary to use brakes to ensure that the heavy objects pulled will not slide down when the motor stops or is damaged. There are many types of brakes used in existing winches, including cone drum type, expanding ring type and ratchet type, each of which has its own advantages and disadvantages. Features, but the service life of the expanding coil winch is short, and the ordinary ratchet winch is easy to drop the rope and drop objects. The application of the cone drum type on the winch is better than the other two brakes in terms of the working performance of the winch and its own service life. However, it is not very ideal in terms of long-term service life and braking reliability.

Moreover, the above three types of brakes also have a common disadvantage, that is, they generate a lot of heat during work, and it is difficult to dissipate heat, which accelerates the damage of the winch.

Therefore we are sternly aware that in order to ensure the safety of field driving, the winch in the prior art is still difficult to be reassuring, and it is necessary to invent a brake that can overcome the above-mentioned shortcomings and can better satisfy the working performance of the winch. brake

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