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Elevator speed governor action velocity calibration instrument and method

A technology of elevator speed limiter and action speed, which is applied in the field of elevator speed limiter action speed calibration equipment, can solve the problems of non-traceability, narrow use range, cumbersome and time-consuming operation, etc., so as to improve the calibration efficiency and eliminate the accuracy Accuracy is poor, the effect of improving accuracy

Active Publication Date: 2016-04-27
广东省特种设备检测研究院江门检测院
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AI Technical Summary

Problems solved by technology

Therefore, the measured pitch circle speed of the speed limiter is also inaccurate.
[0005] Second: It is necessary to manually measure the diameter of the pitch circle of the speed limiter on site, and the operation is cumbersome and time-consuming
Since the rope is not a measured measuring instrument, and the width of the speed limiter rope groove is not the width of a rope, the measured result is not necessarily the circumference of the speed limiter rope groove on the one hand, and has no traceability on the other hand.
In addition, this method can only be used to detect speed governors of U-shaped rope grooves, and cannot detect speed governors of V-shaped rope grooves and U-shaped notch grooves, and the application range is narrow

Method used

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  • Elevator speed governor action velocity calibration instrument and method
  • Elevator speed governor action velocity calibration instrument and method
  • Elevator speed governor action velocity calibration instrument and method

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Embodiment Construction

[0027] refer to Figure 1 ~ Figure 3 , an elevator speed limiter action speed calibration instrument, including a control host 1 and a driver 2 connected to the control host 1, a primary speed detector 3, and a secondary speed detector 4. The control host 1 is provided with a The electrical action detection line 5 of the electrical safety switch of the speed limiter, the driver 2 is a contact type rotary driver and the speed is controlled by the control host 1, and the main speed detector 3 and the secondary speed detector 4 are contact speed detectors.

[0028]In this embodiment, preferably, the control host 1 includes a main speed measurement module for receiving the detection data of the main speed detector 3, a secondary speed measurement module for receiving the detection data of the secondary speed detector 4, and a The switch signal detection module for monitoring the action signal of the electrical safety switch connected to the electrical action detection line 5 also ...

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Abstract

The invention discloses an elevator speed governor action velocity calibration instrument, which comprises a control host, a driver, a master speed detector and a slave speed detector, wherein the driver, the master speed detector and the slave speed detector are connected to the control host. The control host is provided with an electrical action detection line for connecting an electrical safety switch of an elevator speed governor. The driver is a contact-type rotation driver and the rotation speed thereof is controlled by the control host. The master speed detector and the slave speed detector are respectively a contact-type speed detector. Linear velocity of a pitch circle of the speed governor can be measured accurately without measuring the diameter of the pitch circle of the speed governor or calculating the diameter of the pitch circle of the speed governor by measuring the diameter of a rope slot of the speed governor and the diameter of a steel wire rope of the speed governor during field calibration test; and the linear velocity of the pitch circle of the speed governor is measured accurately at the moment of electrical action and mechanical action of the speed governor without being influenced by the shape of the rope slot of the speed governor, wear of the steel wire rope of the speed governor and wear of the rope slot of the speed governor.

Description

technical field [0001] The invention relates to an instrument and method for calibrating the action speed of an elevator speed limiter. Background technique [0002] The speed limiter of the elevator is a very important safety protection device for the elevator. When the elevator car runs at overspeed, the electrical safety switch on the speed limiter will act to cut off the power supply of the elevator and stop the elevator; when cutting off the power supply is not enough to stop the elevator, the mechanical action device of the speed limiter will Action, clamp the wire rope of the speed limiter, thereby driving the safety gear of the elevator car (or counterweight) to move, so that the elevator car (or counterweight) is locked on the guide rail, thereby preventing the elevator car (or counterweight) A further speeding accident occurred. At present, GB7588 "Safety Code for Elevator Manufacture and Installation" has made detailed regulations on the action speed range of va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 陈发坚邹伟罗计委
Owner 广东省特种设备检测研究院江门检测院
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