Over-speed protection device for elevator

An overspeed protection and elevator technology, applied in the elevator field, can solve the problems of difficult installation of the speed limiter wire rope, high manufacturing and installation costs, loose speed limiter wire rope, etc., so as to solve the problem of the speed limiter wire rope relaxation, reduce wear and protect life The effect of property security

Inactive Publication Date: 2017-02-22
YICHUN SPECIAL EQUIP SUPERVISION & INSPECTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the floor is too high, the wire rope of the speed governor is too long, which is prone to installation difficulties and loosening of the wire rope of the speed governor. The failure rate is high, the manufacturing and installation costs are high, and maintenance is also difficult.

Method used

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  • Over-speed protection device for elevator
  • Over-speed protection device for elevator
  • Over-speed protection device for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Such as Figure 1-4As shown, an elevator overspeed protection device includes two overspeed protection sub-devices 100 symmetrically arranged on both sides of the elevator car 500. The overspeed protection sub-devices 100 include an overspeed brake mechanism 200, a safety gear mechanism 300 and A micro switch 400 electrically connected to the elevator safety circuit; the overspeed braking mechanism 200 includes an underframe 210, a speed limiting wheel 230, a brake disc 280 and two throwing blocks 250, and the underframe 210 is provided with The central axis 220 perpendicular to the guide rail 600 of the elevator car 500, the speed limiting wheel 230 and the brake disc 280 are rotatably arranged on the central axis 220, and the circumferential surface of the speed limiting wheel 230 is in line with the elevator car 500 The guide rail 600 contacts, and the side of the speed limiting wheel 230 close to the brake disc 280 is symmetrically provided with two pin shafts 240 w...

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PUM

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Abstract

The invention discloses an over-speed protection device for an elevator. The over-speed protection device comprises two over-speed protection sub-devices symmetrically arranged on two sides outside a car of the elevator; each over-speed protection sub-device comprises an over-speed brake mechanism, a safety gear mechanism and a micro-switch electrically connected with an elevator safety circuit; each over-speed brake mechanism comprises a chassis, a speed limiting wheel, a brake disc and two flail blocks; each safety gear mechanism comprises a steel brake rope, a wedge block and a brake block, one end of the steel brake rope is connected with the brake disc, the other end of the steel brake rope is connected with the brake block, and the brake block can move and get close to a guide rail of the car of the elevator under the effects of the steel brake rope and the wedge block; and each micro-switch is arranged on the surface where the wedge block makes contact with the brake block.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator overspeed protection device. Background technique [0002] Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. As a means of transportation in the vertical direction, elevators have become important construction equipment in high-rise buildings and public places and are indispensable. With the development of computer technology, automation technology and power electronics technology, modern elevators have become typical mechatronic products. With the improvement of the overall national economic strength, people's living consumption level has increased significantly, and real estate developers have vigorously launched mid-to-high-end small high-rise and high-rise residential buildings, which has driven the rapid growth of residential elevators and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/04B66B5/22
CPCB66B5/044B66B5/22
Inventor 刘飞袁超
Owner YICHUN SPECIAL EQUIP SUPERVISION & INSPECTION CENT
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