Elevator overspeed governor

An elevator speed limiter, speed limiter technology, applied in the direction of elevators, transportation and packaging, etc., can solve problems such as safety accidents, car slippage, etc., and achieve the effect of avoiding accidents and ensuring normal lifting

CN101979299AInactive Publication Date: 2011-02-23三六零安全科技股份有限公司
6 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-02-23
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses an elevator overspeed governor. When an elevator stops, a safety device brakes a rope wheel of the overspeed governor or a tension rope wheel; if a cage slides, a steel wire rope is driven to move, and a safety gear operating mechanism of an elevator frame is lifted, a safety gear acts to force the cage to stop under the friction force between the steel wire rope and the rope wheel of the overspeed governor or the tension rope wheel so as to ensure the safe use of the elevator and avoid accidents; and when the elevator requires normal operation, the safety device is separated from the rope wheel of the overspeed governor and the tension rope wheel so as to ensure the normal lifting of the elevator cage.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an elevator speed governor. Background technique

[0002] The elevator speed limiter is a device that limits the overspeed operation of the elevator bridge car or counterweight. When the elevator overspeed reaches the speed limit for the action of the speed limiter, the safety switch of the speed limiter will act, disconnect the control loop, and the elevator will stop running. At the same time, the wire rope of the speed limiter pulls up the connecting rod system of the safety gear of the elevator car frame with the help of the friction force of the sheave or the rope clamping mechanism, and the safety gear acts to force the car to stop on the guide rail. Existing elevator overspeed governors are mainly used for overspeed and out-of-control protection of elevators. In the existing elevator, after the elevator stops, when the car stops at a certain position, unintentional and non-artificial car slippage may occur, resulting i...

Examples

Embodiment Construction

[0008] The structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] see figure 1 As shown, a speed governor of an elevator includes a speed governor wire rope 3, a speed governor sheave 1, a tensioning device 11 for tensioning the wire rope 3, and a safety device 6. The tensioning device 11 includes a wire rope fixed on the guide rail 7 The fixed seat 8, the mounting seat 9 rotatably arranged on the fixed seat 8, the tensioning sheave 2 installed on the mounting seat 9, the weight 10 arranged below the tensioning sheave 2, and the steel wire rope 3 is wound upwards within the limit On the speed device sheave 1, wind around on the tensioning sheave 2 downwards, and the upper and lower ends 4 and 5 of the wire rope 3 are fixedly connected on the safety gear operating mechanism of the elevator car frame (not shown). The tensioning of the wire rope 3 is realized through the gravitational action of the weight 10 in ...