Polyurethane microcellular elastomer for elevator

Abstract

The invention discloses a polyurethane microcellular elastomer for an elevator. The polyurethane microcellular elastomer comprises a polyurethane body, a plurality of through holes formed in the polyurethane body, and magnetizable particles which are embedded into one part of the through holes, wherein the polyurethane body is of an anisotropic structure; in the anisotropic structure, the compression modulus in one direction of three orthogonal directions is at least 1.5 times greater than that in the other two directions; a protection layer is laid on the outer surface of the polyurethane body; a plurality of ventilated mesh holes are formed in the protection layer; a separation layer made of waterproof and ventilation materials is arranged between the polyurethane body and the protection layer; the separation layer is provided with a plurality of bulges; a plurality of concave parts are arranged in the protection layer; the bulges are correspondingly clamped into the concave parts one by one. According to the polyurethane microcellular elastomer for the elevator, a condition that a vibration absorption device has fatigue failures in a utilization process of the elevator is avoided, and the vibration absorption effect of the elevator is ensured.

Description

technical field [0001] The invention relates to the technical field of elevator buffers, in particular to a polyurethane microporous elastomer used for elevators. Background technique [0002] In order to avoid distance vibration when the elevator stops, it is necessary to install a vibration damping device on the elevator. Most of the existing vibration damping devices are in the form of damping springs arranged between double-layer metal plates, and the springs are prone to fatigue failure, which leads to the vibration reduction of the elevator. The vibration effect is reduced, affecting the use effect. Therefore, providing a polyurethane microcellular elastomer used in elevators, in order to improve the stability of the material properties of the elastomer, avoid fatigue failure of the vibration damping device, and ensure the vibration damping effect of the elevator has become a problem to be solved urgently by those skilled in the art . Contents of the invention [0...

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