Synchronous gearless traction machine braking force detection device and detection method

Abstract

The invention discloses a synchronous gearless traction machine braking force detection device. The device comprises a torque bar, a weight tray and a testing weight, wherein the torque bar is detachably mounted on a traction wheel of a synchronous gearless traction machine, and the torque bar is located at a counterweight side of the traction wheel and is arranged horizontally, the torque bar protrudes to the outside of the traction wheel, the weight tray is hung on one end far away from the torque bar, the test weight is selectively loaded in the weight tray, if the test weight loaded in theweight tray makes the selectively deviate from an initial horizontal position, a braking force of the synchronous gearless traction machine is not enough, and if the torque bar maintains the initialhorizontal position under the function of the test weight, the braking force of the synchronous gearless traction machine is qualified, thus, whether the braking force of the synchronous gearless traction machine is qualified can be visually judged through observation for the position of the torque bar, the device is easy to understand, a detection method is simple, generates an accurate result and can perform quantitative analysis. The invention also discloses a synchronous gearless traction machine braking force detection method.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a synchronous gearless traction mechanism power detection device and detection method. Background technique [0002] The elevator must be equipped with a safety protection device so that the elevator can stop in an emergency when it fails during use. Among them, the elevator brake is an important part of the elevator safety stop. The moving electromechanical device, that is, is the key component to ensure that the elevator does not slide up and down. [0003] During the use of the elevator, if the adjustment of the elevator brake is not in place or the friction plate of the brake is worn out, etc., the brake force acting on the main engine will be insufficient, so that the elevator cannot maintain a safe and stable stop when the elevator is running. There is no guarantee that the car will not slip when the elevator is stopped or the elevator is stopped for a long time, which w...

AI Technical Summary

Problems solved by technology

[0003] During the use of the elevator, if the adjustment of the elevator brake is not in place or the friction plate of the brake is worn out, etc., the brake force acting on the main engine will be insufficient, so that the elevator cannot maintain a safe and stable stop when the elevator is running. There is no guarantee that the car will not slip when the elevator is stopped or the elevator is stopped for a long time, which will bring serious safety hazards to the elevator and passengers

Therefore, the detection of the braking force of the synchronous gearless traction machine is a particularly important safety function inspection. The current practice is that the brake is not activated, and the detection is performed by controlling the output torque of the frequency converter through software. However, when the control detection is implemented through software , there is no way to verify whether the given torque is correct, and the detection results cannot be reflected intuitively, which is difficult to understand

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