Control system and method for mine elevator with electromagnetic door lock
An electromagnetic door lock and control system technology, which is applied in the field of mine elevator control, can solve the problems of driverless operation, automatic door opening, and door opening normally, and achieve the effects of manpower saving, good operation and convenient use
Active Publication Date: 2021-11-02
湖北电梯厂有限公司
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Problems solved by technology
[0006] (1) In the prior art, the mine elevator door system cannot be operated without a driver, and cannot automatically open the door
[0007] (2) In the prior art, the mine elevator car must be operated by someone to open the door, that is, the driver can open the door from inside the car, but cannot open the door normally from outside the landing
Method used
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Embodiment
[0057] The mine elevator control system with electromagnetic door lock provided by the embodiment of the present invention includes a programmable logic controller (PLC), a frequency converter, a motor, a rotary encoder, a car, a counterweight, a door system, a magnetic isolation board, a shaft and a travel switch , Safety switch, leveling switch and other signals.
[0058] The above-mentioned signals are sent to the programmable logic controller (PLC) of the elevator together with the safety signal of the elevator, the door lock signal, the car command and the button signal of each floor, and the logic after detection and processing by the programmable logic controller (PLC) The signal is input to the frequency converter through the input and output signals, and the frequency converter generates a speed curve, which drives the motor to make the elevator car move up and down according to the predetermined running curve.
[0059] When the elevator car reaches a certain distance...
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The invention belongs to the technical field of mine elevator control, and discloses a control system and method for mine elevators containing electromagnetic door locks. A motor controlled by a frequency converter drives the car to move up and down. Various switches and car signals are detected to realize the control of the elevator; the programmable logic controller controls the start and stop of the frequency converter through the input and output lines of the frequency converter, and automatically opens the door system. The control system of the present invention is that after the elevator stops at the leveling floor of the station, the electromagnet on the door is energized under the action of the control circuit, and the lifting connecting rod drives the lock hook to rotate, so that the lock hook rotates away from the lock buckle to realize unlocking, and at the same time the switch operation The part rotates with the lock hook to break away from the safety switch, disconnect the door lock circuit, and manually open the door from the outside or inside of the elevator. After the door is opened, the electromagnet is powered off and released, realizing the function of automatic door opening without driver operation of the mine elevator, saving manpower for mining enterprises , material and financial resources.
Description
technical field [0001] The invention belongs to the technical field of mine elevator control, and in particular relates to a control system and method for a mine elevator containing an electromagnetic door lock. Background technique [0002] Currently, the closest prior art: [0003] In the existing technical field, the automatic door system is mostly used in the elevator, and the door is automatically opened on the leveling floor, which can be operated with or without a driver. However, due to the presence of dust, water, sediment and other media in the operating environment of the mining elevator, the automatic door machine system is difficult to adapt to the operating environment of the mining area, and frequent failures make it unusable. [0004] Therefore, the mine elevator door system mostly adopts the hand door type. The driver controls the operation of the elevator through signals in the car. When stopping at a station, he can only unlock and open the door manually ...
Claims
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IPC IPC(8): B66B13/14
CPCB66B13/143
Inventor 叶桂兰周正刚熊新洲
Owner 湖北电梯厂有限公司