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Online detection method and device for elevator safety device

A technology of an elevator safety device and a detection method, which is applied in the directions of transportation, packaging, elevators, etc., can solve problems such as elevator damage, brake impact structural damage, etc., and achieve the effect of avoiding irreversible damage.

Pending Publication Date: 2022-02-01
河南大亘计量检测研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if the car is dropped to carry out the linkage test of the speed limiter and the safety gear, the huge braking impact will cause damage to the corresponding structural parts, and the elevator will be irreversibly damaged. Therefore, the speed limiter cannot be truly realized in the prior art. Linkage test with safety gear

Method used

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  • Online detection method and device for elevator safety device
  • Online detection method and device for elevator safety device
  • Online detection method and device for elevator safety device

Examples

Experimental program
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Effect test

Embodiment 1

[0032] This embodiment proposes an online detection device for an elevator safety device, which is mainly used for detecting the linkage between the speed governor of an elevator and the safety gear 10 . It includes a speed governor at the top of the elevator shaft, a tensioning device 11 at the bottom of the elevator shaft, and a car 3 arranged in the elevator shaft and connected to the guide rails in the elevator shaft. The tongs 10 , the overspeed governor and the tensioning device 11 are closed-loop connected through the wire rope 2 , and the safety gear 10 is arranged on the wire rope 11 . One side of the overspeed governor is provided with a steel wire rope clamp 12, and the steel wire rope 2 in the present invention is composed of a steel wire rope a section 201 and a steel wire rope b section 202, wherein between the steel wire rope clamp 12 and the safety gear 10 is a steel wire rope a section 201, The remaining part is steel wire rope b section 202.

[0033] It also...

Embodiment 2

[0043] The elevator safety device online detection device proposed in this embodiment adopts the same inventive concept as in Embodiment 1, and the difference from Embodiment 1 is that the distribution positions of the tension sheave 13 in this embodiment are as follows: figure 2 As shown, the upper and lower sides of the tension sheave 13 are provided with matching limit guide wheels 14, and the linkage between the overspeed governor and the safety gear 10 can be realized by pulling the tension sheave 13 in the horizontal direction.

Embodiment 3

[0045] The elevator safety device online detection device proposed in this embodiment adopts the same inventive concept as that of Embodiment 2, and the difference between it and Embodiment 2 is that: image 3 As shown, the tension rope wheel 13 in the present embodiment adopts a semicircular wheel 19, while the two limit guide wheels 14 adopt a sector wheel 20, and the circumferential surfaces of the semicircle wheel 19 and sector wheel 20 are all rotatably installed There is the roller 25 that rolls and cooperates with steel rope a section 21, and the semicircular wheel 19 and the sector wheel 20 can reduce the manufacturing cost compared with the traditional complete circular rope wheel, and the semicircle wheel 19 and the sector wheel 20 are provided with Roller 25 then adopts rolling friction with steel wire rope 2, can reduce the frictional force of both, and then reduces the wearing and tearing to steel wire rope 2.

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Abstract

The invention relates to an online detection device and method for an elevator safety device. Acting force is applied to a steel wire rope through a rope lifting device so that the steel wire rope can be separated from a speed limiter rope wheel; when the speed limiter rope wheel reaches a certain speed, a steel wire rope clamping device acts to clamp the steel wire rope, and the instantaneous action speed of a speed limiter is detected; the section a of the steel wire rope between the steel wire rope clamping device and safety tongs is pulled to act on the safety tongs, and whether the elevator safety device is linked or not is judged by observing whether the safety tongs act or not. The online detection device can directly perform linkage test of the speed limiter and the safety tongs on an elevator in a static or low-speed running state in an elevator shaft, so that the detection work of the elevator can be met, and irreversible damage to the elevator can be avoided.

Description

technical field [0001] The invention belongs to the field of elevator equipment, and in particular relates to an online detection device and method for an elevator safety device. Background technique [0002] Speed ​​limiter and safety gear are very important mechanical safety protection devices. The speed limiter is connected with the safety gear pull rods installed on both sides of the car through a wire rope. When the elevator is running, the wire rope converts the vertical movement of the elevator into the rotational movement of the speed limiter. When the rotation speed of the speed limiter exceeds the limit value, the speed limiter will first make the overspeed switch act to cut off the power supply of the elevator control circuit, so that the electromagnetic brake will lose power and brake. If the brake fails, if the elevator goes down at this time, the speed limiter will block the wire rope, forcing the safety gear to act, and the elevator will be forced to stop on...

Claims

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Application Information

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IPC IPC(8): B66B5/00
CPCB66B5/0093
Inventor 尚廷东周世军杨长征朱蕾蕾张伟张中杰刘明李垒垒宋春磊彭梦南
Owner 河南大亘计量检测研究院有限公司
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