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Reset method for electric safety tongs of elevator

A reset method and technology of safety gear, which is applied in the direction of elevators, transportation and packaging, etc., can solve the problems of insufficient wedges, reset, etc., and achieve the effect of reducing the requirement of driving force and reducing the possibility of burning out

Active Publication Date: 2021-12-21
HITACHI ELEVATOR CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a method for resetting elevator electric safety gear, which can solve the problem of driving force of the motor when the wedge is tightly clamped to the elevator guide rail. Insufficient enough to reset the wedge

Method used

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  • Reset method for electric safety tongs of elevator
  • Reset method for electric safety tongs of elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] refer to figure 1 , shows a method for resetting the electric safety gear of an elevator, wherein the electric safety gear can adopt the structure of an integrated lifting mechanism of the elevator safety gear with the publication number CN113184656A, the wedge and the armature in the electric safety gear Linkage setting, the armature is driven to move by the driver to control the position of the wedge in the electric safety gear. The reset method includes the following steps:

[0021] When it is necessary to reset the electric safety gear, the driver first drives the armature to move to drive the wedge in the electric safety gear to reset; during the above process, the current of the driver is detected, and if the current is less than the preset value, it means that the driver is driving The force is enough to reset the wedge in the electric safety gear, and no additional action is required at this time, until the electric safety gear is completely reset, and then stop...

Embodiment 2

[0024] refer to figure 2 , shows a method for resetting the electric safety gear of an elevator, wherein the electric safety gear can adopt the structure of an integrated lifting mechanism of the elevator safety gear with the publication number CN113184656A, and the wedge inside the electric safety gear The block is set in linkage with the armature, and the armature is driven to move by the driver to control the position of the wedge in the electric safety gear. The reset method includes the following steps:

[0025] When it is necessary to reset the electric safety gear, the driver first drives the armature to move to drive the wedge in the electric safety gear to reset; during the above process, the current of the driver is detected, and if the current is less than the preset value, it means that the driver is driving The force is enough to reset the wedge in the electric safety gear, and no additional action is required at this time, until the electric safety gear is compl...

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PUM

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Abstract

The invention discloses a resetting method for electric safety tongs of an elevator. A wedge block and an armature in the electric safety tongs are arranged in a linkage manner, the armature is driven by a driver to move so as to control the position of the wedge block in the electric safety tongs. The resetting method comprises the following steps that 1, the driver drives the armature to move so as to drive the wedge block in the electric safety tongs to reset; 2, the current of the driver is detected in the process; 3, if the current is greater than the preset value, an elevator car is controlled to run upwards; and 4, the complete resetting of the electric safety tongs is realized. By detecting the current of the driver, whether the driving force of the driver is enough to enable the wedge block to be completely reset or not is judged; when the driving force of the driver is insufficient, the elevator car is controlled to move upwards, so that the clamping force of the wedge block on an elevator guide rail is reduced, and the driver can reset the wedge block conveniently; engineering personnel do not need to participate, and it is ensured that the elevator can automatically recover the normal working state; and the requirement for the driving force of a motor can be lowered, and the possibility that the motor is burnt out is lowered.

Description

technical field [0001] The invention relates to the technical field of elevator safety gear reset, in particular to a method for resetting elevator electric safety gear. Background technique [0002] When the elevator runs at an overspeed (usually the elevator descends at an overspeed), the safety gear will start, and the wedges in the safety gear will clamp the elevator guide rail, so that the elevator can reliably stop at the current position; while the previous manipulator safety gear must be manually intervened Reset the safety gear to restore the normal operation of the elevator; and the current electric safety gear, such as the integrated lifting mechanism of a kind of elevator safety gear whose publication number is CN113184656A, can pass through components such as motors, armatures, and linkage rods, and pass through motors. Push the armature to forcibly push the wedge in the safety gear back; however, in practical applications, due to cost, volume and other factors,...

Claims

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Application Information

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IPC IPC(8): B66B5/22
CPCB66B5/22B66B5/0087
Inventor 杜永聪王文俊谢炜高欣井上真辅
Owner HITACHI ELEVATOR CHINA