Damping system of adaptive progressive damping force of elevator

Abstract

The invention discloses a damping system of an adaptive progressive damping force of an elevator. The damping system comprises a magneto-rheological damping assembly for forming damping to an elevator compartment in the elastic compression process of a buffer assembly of the elevator subjected to the elevator compartment. The magneto-rheological damping assembly introduces the damping in the compression process of a buffer spring to form the progressive buffer damping way, parameters of magnetorheological fluid can be adjusted according to the falling parameter of the elevator compartment, the damping force is gradually increased in the bottom touch buffer process of the elevator compartment, the increment process of the damping force is rapid and stable compared with an ordinary spring, the buffer damping is formed at a final stage, and the smoothness of downlink buffer and sufficient variable damping force can be realized, so that compared with the prior art, the buffer stroke and the progressive gradually-varied damping process can be increased; a spring with smaller elastic coefficient can be adopted, and the damping system is applicable to a high-speed elevator by combining the later variable damping and the preliminary elastic buffer and has an effect of dynamic application at any time.

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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