Rubber vibration reduction device for noise reduction of elevator machine room

Abstract

The invention discloses a rubber vibration reduction device for noise reduction of an elevator machine room. The rubber vibration reduction device comprises an upper supporting plate, a rubber vibration reduction pad and a lower supporting plate, all of which are sequentially arranged from top to bottom. Double-head screws are arranged on the two sides of the top of the upper supporting plate, the two double-head screws sequentially penetrate through the upper supporting plate, the rubber vibration reduction pad and the lower supporting plate from top to bottom, the bottoms of the two double-head screws are in screw joint with the lower supporting plate and are tightly welded to the lower supporting plate, and the upper portions of the two double-head screws are sequentially connected with rubber sound insulation pads and gaskets from bottom to top in a sleeved manner. In the rubber vibration reduction device, the vibration reduction device is connected with embedded iron, I-shaped steel or channel steel of the elevator machine room in a welded manner, vibration can be directly isolated through the vibration reduction pad, loads can be averagely distributed according to different stress loads, a main engine has the advantages of being stable in running, good in vibration reduction performance, resistant to aging, long in service life and the like, a split nut and split pin manner is adopted for connection, and nut falling caused by vibration and buckle moving can be avoided.

Description

technical field [0001] The invention relates to the technical field of noise reduction in an elevator machine room, in particular to a secondary noise reduction and shock absorbing device for a traction machine in an elevator machine room. Background technique [0002] With the progress of society and the development of science and technology, people's requirements for the quality of their living environment are constantly improving. With the construction of more and more high-rise buildings, elevators have become an indispensable means of transportation in life, and the noise of elevator operation has always been is an important factor affecting comfort. For the elevator machine room, the concrete and the wall are inhomogeneous media. The inhomogeneous medium has a strong scattering and consumption effect on the high-frequency band when the sound wave is transmitted. The structure propagation generally causes low-frequency noise. The noise tone is relatively low, usually lo...

AI Technical Summary

Problems solved by technology

The generation of low-frequency noise is mostly related to the structure of the building. Some households share a wall with the machine room and the elevator shaft or the machine room, and the distance between the shaft and the room is relatively short. Yu did the first shock absorption treatment, but with the operation of the elevator, the shock absorption effect will attenuate or even disappear. Because the main beam and the wall are rigidly connected, the vibration of the elevator is transmitted to the owner's room through the wall. Form low-frequency noise, disturbing and unbearable

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