Overspeed automatic brake system of mining endless rope winch

Abstract

The invention relates to an overspeed automatic brake system of a mining endless rope winch. Error braking or brake failures are prone to happening in existing tramcar brake. Thus, the overspeed automatic brake system of the mining endless rope winch comprises a brake mechanism and a bidirectional centrifugal overspeed clutch brake trigger device. The bidirectional centrifugal overspeed clutch brake trigger device comprises a large chain wheel, a chain, a rotating shaft, a fixed disc and a moving disc. A pulley disc is further hinged to the middle of a frame of the matched winch. A horizontalsupporting rod is fixedly connected to the center of the pulley disc, and clamping jaws are supported on the two sides of the horizontal supporting rod correspondingly. Rope grooves are formed in theouter circumferences of the fixed disc and the pulley disc, and a steel wire rope and a fixed pulley are arranged between the fixed disc and the pulley disc. The pulley disc is provided with a torsional spring or reset spring. The center extending line of the steel wire rope connected with the outer edge of the fixed disc right passes through one point on the axis of the fixed disc. The overspeedautomatic brake system is suitable for coal mine common rail transportation, is high in brake safety, easy to use and high in reliability and can be used in a coal mine on a large scale.

Description

technical field [0001] The invention relates to an overspeed automatic braking system of a mine-used infinite rope winch. Background technique [0002] In the prior art, the most common braking method of the infinite rope winch for mining is claw braking, which is a claw brake block made of cast iron or other materials. When the wire rope breaks, the brake block is against the transport rail. The sleepers stop the winch through rigid resistance; another relatively new braking method adopts the caliper hydraulic holding rail brake, which is based on the combined symmetrical brake caliper structure design, through the hydraulic device, the brake caliper is controlled. Hold the rail, and generate a braking force through the friction between the brake caliper and the rail to stop the vehicle from moving forward. [0003] The above two braking methods have their own advantages and disadvantages due to their different design principles: the claw-type braking method is simple and ...

AI Technical Summary

Problems solved by technology

[0003] The above two braking methods have their own advantages and disadvantages due to their different design principles: the claw-type braking method is simple and reliable, but the trigger method is defective and often malfunctions, that is, it should trigger the brake. However, there is no trigger, and the braking effect is lost; the hydraulic rail-holding brake method, which improves the trigger method, generally does not cause trigger malfunctions, but the rail-holding brake method often fails to brake in the case of large tonnage and high-speed operation. car, causing brake failure

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