Buffer-braking anti-falling device for disposing rope breakage of vertical conveyor

Abstract

The invention discloses a cut-wire baffle brake anti-drop device of vertical lifter, which comprises a guide rail support and a compartment. It is characterized in that: the upper part of compartment is mounted with a brake; said brake is formed by a brake beam inside the compartment and the brake rods symmetry mounted on two sides of brake beam via brake axle; the top surface inside the compartment is mounted with a cut-wire sensor; said cut-wire sensor is formed by a sensing rod, a compress plate at the lower end of sensing rod, and a sensing spring and a sensor sheath that sheathing the sensing rod; the upper end of sensing rod is guided out the top surface to connect steel wire; said compress plate is at the upper end of brake rod; the brake beam is mounted with buffers that at two sides of cut-wire sensor; the lower end of buffer is near to the brake rod; and the inner side of guide rail support is uniformly mounted with blocks. The invention has the advantages that: it will not generate high temperature and splash, and abrade work-piece, with short brake distance, high safety, and reliable operation.

Description

technical field [0001] The invention particularly relates to a rope-broken buffering, braking, and falling-preventing device for a vertical elevator. Background technique [0002] At present, the rope-broken protection device applied to vertical lifting machines such as elevators is generally composed of a speed limiter and a safety gear. Its working principle is to use friction braking, that is, when the rope breaks, the speed limiter drives the safety gear to generate friction with the guide rail to stop its downward movement, so as to prevent falling. After the elevator breaks the rope, the car loses control and moves downward in an approximate free fall, converting its potential energy into kinetic energy at an acceleration of nearly 9.8m / s. Therefore, friction braking has the following three problems: 1. According to the law of energy conservation, its friction converts kinetic energy into heat energy. Iron brakes will generate high temperature, high heat and sparks, w...

AI Technical Summary

Problems solved by technology

Therefore, friction braking has the following three problems: 1. According to the law of energy conservation, its friction converts kinetic energy into heat energy. Iron brakes will generate high temperature, high heat and sparks, while brakes made of other materials will generate high temperature and high heat, so they are flammable. It cannot be used in explosive places; 2. The surface of the guide rail is smooth, the friction braking distance is long, and squatting accidents often occur; 3. The braking energy is large, the brake and guide rail are severely worn, and it is difficult to resume production

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