Elevator damping device with adaptability

Abstract

The invention discloses an elevator damping device with adaptability. The elevator damping device comprises a magnetorheological damping body and a control system. Parameters of magnetorheological fluid are regulated according to parameters in an abnormal falling process, if the falling speed is higher, the electrification current is increased, and the magnetorheological fluid is thickened for increasing the damping force, in addition, the damping force is gradually increased in the bottom touching process of an elevator life car body, meanwhile, the electrification current can be reduced after the speed of the elevator life car body is decelerated in the damping process, a gradually decreased damping force is formed, the damping is fast and gentle combined with the general hydraulic damping and the damping of an ordinary spring, and the damping force is adjustable, so the elevator damping device can be applicable to high-speed and low-speed elevators, the descending buffer smoothness and the sufficient variable damping force are realized, and in addition, the any-time dynamic application effects are achieved, so that the comfort and the reliability before the elevator life car body touches the bottom and at the moment of making contact with a buffer assembly can be effectively improved, and the safety performance of the elevators is improved.

Description

technical field [0001] The invention relates to a safety system for special equipment, in particular to a safety system for a van elevator when it hits the bottom. Background technique [0002] The van elevator is a means of transportation for vertical transportation, which is closely related to people's daily life; the existing van elevator is mainly composed of a traction machine, a control cabinet, an elevator car body, guide rails, etc. Downlink; In order to realize uplink and downlink and install related equipment, elevator shafts will be built in buildings or other places where van elevators are used to achieve smooth operation. [0003] The uplink and downlink of van elevators are generally achieved by mechanical traction, and the structure is relatively complex. Due to problems such as the use environment, cycle, equipment aging, and quality, it will cause the elevator car body to fall without constraints or limited constraints, which is relatively complex. serious ...

AI Technical Summary

Problems solved by technology

[0003] The uplink and downlink of van elevators are generally achieved by mechanical traction, and the structure is relatively complex. Due to problems such as the use environment, cycle, equipment aging, and quality, it will cause the elevator car body to fall without constraints or limited constraints, which is relatively complex. serious safety issue

In the prior art, in order to solve the serious danger to the passengers caused by the rigid bottoming of the elevator car body (directly falling to the bottom of the hoistway), a buffer device is installed at the bottom of the hoistway; the buffer device is a hydraulic buffer for high-speed elevators, and generally The structure of the buffer spring is adopted, and this consideration is mainly the relationship between the elastic coefficient of the spring, the stroke and the elevator car body. Therefore, high-speed elevators cannot use springs with a large elastic coefficient, otherwise there will be obvious rigid bottoming feeling. resulting in accidents; the main thing is that the above-mentioned buffer structure is not adaptable according to the whereabouts of the elevator car body, so it cannot be buffered according to the falling situation

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