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Speed reducer used for toothed chain

A technology of reducer and tooth chain, which is applied in the field of fire rescue devices, and can solve problems such as rapid heating, unstable guiding effect of the tooth chain, and large vibration of the tooth chain

Active Publication Date: 2013-05-15
HIGH RISE SAFETY TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During work, the shaft hole of the reducer housing and the parts of the governor have the defects of large wear and rapid heating during operation, the guiding effect of the positioning mechanism on the tooth chain is unstable, and the vibration of the tooth chain is large

Method used

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  • Speed reducer used for toothed chain

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Experimental program
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Effect test

Embodiment Construction

[0008] figure 1 The main components of the gear reducer shown are composed of a housing (1), a positioning mechanism (11), a gear set, and a non-return torque governor. The first-stage combination gear (2) is used to mesh with the tooth chain, and the body weight is applied to the round shaft below the bearing plate (10) through the safety belt. Under the action of gravity, the first-stage combination gear (2), the second-stage The combination gear (3) and the third gear (8) rotate at a speed-up, the riding wheel (7) is fixed on the top of the third gear (8) and rotates clockwise, and the slip assembly (4) is composed of upper and lower splints, rollers (6) Composed of a fixed shaft (5) and a counterweight. There is a shaft hole in the middle of the upper and lower splints. Through the shaft hole, the slip assembly (4) is set on the elongated shaft of the second-stage combined gear (3). When the wheel (8) rotates, the circular cam (b) impacts and rubs against the two rollers ...

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Abstract

The invention is a speed reducer used for toothed chain and belongs to a lifesaving device for fire disaster. The invention comprises a shell, a positioning mechanism, a gear set and an unreturned moment speed governor, wherein the shell and each assemblies of the positioning mechanism are shaped up by adopting the steel plate stamping technology. A slip element in the unreturned moment speed governor is formed by an upper and lower plate, a roller, a balance weight, and a fixed shaft. The variable amount between three to six circle protrudes of riding gear are used instead of prior sharp tooth. The speed reducer has characteristics of less wear and heat on each transmission assemblies at work.

Description

(1) Technical field [0001] The invention relates to a speed reducer for a tooth chain, which belongs to a fire rescue device. (2) Background technology [0002] The speed reducer in the escape device disclosed in Chinese patent ZL200410013362.0 adopts a cast shell and a non-return torque speed governor, and relies on a positioning mechanism to mesh with the tooth chain to realize the function that people escaping from a high building can descend at a uniform speed. During work, the shaft hole of the reducer housing and the parts of the governor have the defects of large wear and rapid heating during operation, the guiding effect of the positioning mechanism on the tooth chain is unstable, and the tooth chain shakes greatly. [0003] The purpose of the present invention is to design a gear reducer for gear chains, which is not prone to wear and tear, has low heat generation and reliable positioning mechanism. (3) Contents of the invention [0004] In order to achieve the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62B1/06
Inventor 连军
Owner HIGH RISE SAFETY TECH LTD