Safety protection type elevator

Abstract

The invention discloses an elevator. The elevator comprises a traction system, a guide system, a door system, a car, a weight balance system, an electric traction system, an electric control system and a safety protection system, and is characterized in that the safety protection system comprises a speed-limiting brake device, a rope breakage monitoring device and a slip monitoring device, whereinthe speed-limiting brake device is used for realizing the braking of a brake module when the descending speed of the car is too fast; the rope breakage monitoring device is used for detecting the breakage of a hoisting rope and realizing the braking of the brake module; and the slip monitoring device is used for detecting whether a slipping area exists in an elevator shaft guide rail or not. According to the speed-limiting brake device of a safety protection type elevator, when the descending speed of the car is too high, the brake module can be rapidly controlled to conduct brake operation through a speed-limiting trigger module, and the operation speed is high; and when a friction wheel encounters an area with oil stains on the elevator shaft guide rail, the slip monitoring device carries out rapid detection, so that the monitoring result of the equipment is more reliable.

Description

technical field [0001] The invention relates to the field of elevator equipment, in particular to a safety protection elevator. Background technique [0002] Traction drive is widely used in modern elevators. The traction machine is used as the driving mechanism, the traction rope is hung on the sheave of the traction machine, the car is suspended at one end, and the counterweight is suspended at the other end. When the traction machine rotates, the friction force between the traction rope and the sheave generates traction force to drive the car to move up and down. The traction elevator is mainly composed of the following eight major systems, traction system, guide system, door system, car, weight balance system, electric drive system, electrical control system and safety protection system. [0003] The existing traction elevators have the following potential safety hazards during use: [0004] The traction rope is not a durable elevator component, but a consumable item,...

AI Technical Summary

Problems solved by technology

[0006] During the regular inspection of elevators, inspectors often find that a layer of oil stains accumulate on the surface of the guide rails of the elevator shaft. This is formed by the lubricating oil in the elevator system being thrown out due to a fault and mixed with dust. If it is not cleaned in time, the safety gear will be changed. and the friction coefficient of the guide rail of the stairwell, which reduces the braking ability in emergency situations. Therefore, it is necessary to monitor the surface friction capacity of the guide rail of the stairwell during the operation of the elevator. The existing monitoring methods are manually checked and operated. more difficult

[0007] The normal operation of the speed limiter and safety gear at critical times has high requirements for regular maintenance. Maintenance personnel need to: regularly derust and add lubricating oil to the swinging parts of the speed limiter (otherwise it will easily lead to slow block action , unable to trigger the mechanical action to clamp the speed limiter steel rope); regularly clean up the sundries in the speed limiter rope groove (otherwise the accumulation of oil will reduce the frictional resistance, and the speed limiter steel rope will slip in the rope groove Phenomenon); Regularly replace the speed limiter rope groove and the rope clamp (otherwise the long-term wear and corrosion, the rope clamp cannot effectively clamp the speed limiter rope

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