Dynamic change balance compensation device for traction elevator and dynamic change balance compensation method

Abstract

The invention discloses a dynamic change balance compensation device for a traction elevator and a dynamic change balance compensation method. The dynamic change balance compensation device comprisesa lift car; a hoist rope is connected to the lift car, wound on a traction wheel and a beam pulley and then is connected to a counterweight device; the traction wheel and the beam pulley are fixed ina machine room of the top layer of the elevator room; a first liquid tank is arranged at the bottom of the counterweight device and is connected to a conveying pump through a connecting pipe; the conveying pump is further communicated with a second liquid tank, and the second liquid tank is fixed to the side shaft wall of the counterweight device; a first directional control valve and a second directional control valve are arranged at the end, close to the first liquid tank, of the connecting pipe and the end, close to the conveying pump, of the connecting pipe correspondingly; and the conveying pump, the first directional control valve and the second directional control valve are electrically connected to a controller respectively. According to the dynamic change balance compensation device and the dynamic change balance compensation method, a dynamic change compensation balance technology is utilized, so that the daily operation mode of the elevator is a favorable operation mode, thestarting current and the running current of the elevator are greatly decreased, so that the operation of the elevator can be more stable and energy-saving, and therefore the practicability is good, and the device and the method are worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of elevators, and in particular relates to a dynamic balance compensation device and a dynamic balance compensation method for a traction elevator. Background technique [0002] The balance weight of the elevator is 0.4---0.5 times of the car's own weight plus the rated load of the elevator, which is the balance coefficient of the elevator, which is generally 0.45. Once the balance coefficient is determined, the balance weight of the elevator will no longer change. The ideal operation mode of the elevator is that the elevator runs at or near the balance coefficient point. The up and down currents are equal or similar and relatively small. At this time, the elevator runs the most stable and energy-saving. [0003] But in reality, the load of the elevator has been changing randomly between no-load and full-load, while the balance weight of the traditional elevator is fixed, and the balance coefficient is a fi...

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Problems solved by technology

[0003] But in reality, the load of the elevator has been changing randomly between no-load and full-load, while the balance weight of the traditional elevator is fixed, and the balance coefficient is a fixed value, which cannot cope with the random change of the elevator load, and the elevator is often in an unfavorable operation mode. , especially when the elevator goes up with full load or down with no load, the elevator starts and runs with high current, high energy consumption, unstable start and stop, shocks, vibrations, etc. failure or accident conditions such as squat bottom

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