Self-adaption damping elevator well damping assembly

Abstract

The invention discloses a self-adaption damping elevator well damping assembly. The self-adaption damping elevator well damping assembly comprises a buffer plate, a magneto-rheological damping device and a control system. The magneto-rheological damping device at least comprises four sets of rotating magneto-rheological damper assemblies which are arranged in the circumferential direction of an elevator well and distributed on the bottom surface of the buffer plate and independent lift the buffer plate. Each set of rotating magneto-rheological damper assembly comprises a lifting arm, a rotating shaft and at least two rotating magneto-rheological dampers arranged at the two ends of each rotating shaft in a transmission mode correspondingly. The control system comprises a falling parameter detection unit, a power unit and a central processing unit. The damping force of all the lifting arms is adjusted in real time by the central processing unit according to falling parameters detected through the falling parameter detection unit to enable the inclined buffer plate to be horizontal, the effect that larger and effective damping force gets involved in the later period is ensured, the smoothness of descending buffering is achieved, high-speed elevators and low-speed elevators can be commonly used, and the safety performance of the elevators is improved.

Description

technical field [0001] The invention relates to the field of an elevator shaft, in particular to an adaptive damping elevator shaft damping assembly. Background technique [0002] As a vertical elevator powered by a motor, the car elevator drags the box up and down through mechanical traction. In order to ensure its convenient operation and manufacturing cost, the motor is usually used to drive the rope to drag the car vertically, and the drive structure is relatively It is also relatively complicated. Due to problems such as installation process quality, service life and use environment, elevators are prone to serious safety and quality problems. Although quality inspection personnel will conduct regular safety inspections, there are still a large number of major elevator accidents. Falling under unconstrained or partially constrained conditions, and then, a buffer plate is set at the bottom of the elevator shaft to buffer the fast-falling car, so as to minimize the damage ...

AI Technical Summary

Problems solved by technology

[0002] As a vertical elevator powered by a motor, the car elevator drags the box up and down through mechanical traction. In order to ensure its convenient operation and manufacturing cost, the motor is usually used to drive the rope to drag the car vertically, and the drive structure is relatively It is also relatively complicated. Due to problems such as installation process quality, service life and use environment, elevators are prone to serious safety and quality problems. Although quality inspection personnel will conduct regular safety inspections, there are still a large number of major elevator accidents. Falling under unconstrained or partially constrained conditions, and then, a buffer plate is set at the bottom of the elevator shaft to buffer the fast-falling car, so as to minimize the damage of the car suddenly touching the bottom; in the prior art, usually through Install springs or / and damping devices on the buffer plate for buffering. When the car touches the bottom, the gravitational potential energy of the car is converted into the elastic potential energy of the spring and the internal energy of the damping fluid, and the buffer plate is vertically guided by the guide device However, when the car is falling, the car usually falls in an inclined state. When it is engaged with the buffer plate, the buffer plate is subjected to a large moment, which makes the vertical guide device prone to greater friction, causing the buffer to lock Or the reverse friction and recoil force is too large, which is not conducive to the subsequent intervention of springs and damping parts; at the same time, because the buffer structure tends to generate a lot of heat during the punching process, the buffer structure with a large footprint is good for heat dissipation in a relatively small space , and the accuracy of controlling the damping force is low, which is not conducive to the smoothness of the car damping downward

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