Soil pressure balance shield machine cycloid speed reducer

A technology of cycloidal reducer and earth pressure balance, which is applied in the direction of mechanical equipment, gear transmission, belt/chain/gear, etc., which can solve the problems of long delivery time and high price, and achieve the purpose of prolonging the service life and shortening the shaft effect on size

Active Publication Date: 2011-09-21
国茂精密传动(常州)有限公司
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Problems solved by technology

This project is currently the core component of the most advanced tunnel construction machinery in the world - the earth p...

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  • Soil pressure balance shield machine cycloid speed reducer

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[0031] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below in conjunction with the accompanying drawings:

[0032] refer to figure 1 .A cycloid reducer for an earth pressure balance shield machine, comprising a pin gear housing, a cycloid wheel, an eccentric bearing, a needle pin, a column pin, a column sleeve, an input shaft, a W output mechanism and a supporting bearing, characterized in that: The wire transmission part is installed in the cavity formed by connecting the front end cover (5) and the rear end cover (11) respectively at both ends of the pintooth housing (1), wherein:

[0033] (A) The pin half-buried holes evenly distributed on the pin gear housing (1) are obtained by turning the inner hole of the pin gear housing to DZ-dz+4e+(0.2-0.4), and the openings of the half-buried holes point to the pin teeth The center line of the shell, the sharp corners on both sides of the opening of the semi-buried hole are blun...

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Abstract

The invention relates to the technical field of shield machine speed reduction, and discloses a soil pressure balance shield machine cycloid speed reducer. The soil pressure balance shield machine cycloid speed reducer is characterized in that: a cycloid driving part is arranged in a cavity formed by connecting a front end cover with a back end cover by using a pin wheel housing, wherein a half-buried hole of the pin wheel housing is in movable fit with a sleeveless needle pin; four cycloidal wheels are arranged on a double-eccentric bearing, wherein the phase difference between a first cycloidal wheel and a second cycloidal wheel and between a third cycloidal wheel and a fourth cycloidal wheel is 180 degrees, and the second cycloidal wheel and the third cycloidal wheel have the same phase; and a W output mechanism consists of an output shaft, a pin and a uniform loading plate, the pin is provided with three circular ring plates to form a four-section freely supported structure, and the W output mechanism is supported in an inner hole of a front end cover and an inner flange outer circle of a back end cover through a bearing respectively. The soil pressure balance shield machine cycloid speed reducer has the following advantages that: (1) the axial size is 45 to 55 percent shorter than that of a third-class planetary reduction gear of the background art; (2) the cycloidal wheels can be assembled in a reversed mode to double the service life; (3) the manufacturing cost is 40 to 50 percent of that of the third-class planetary reduction gear of the background art; and (4) the inertia force and the inertia moment in operation are theoretically completely balanced.

Description

technical field [0001] The invention relates to the technical field of shield machine deceleration, and relates to a cycloid reducer for an earth pressure balance shield machine. Background technique [0002] "High-power three-stage planetary reducer for earth pressure balance shield machine" (200810231114.1) of CITIC Heavy Industry Machinery Co., Ltd. and Luoyang Mining Machinery Design and Research Institute is a national 863 plan project for three years from 2007 to 2010. This project is currently the core component of the world's most advanced tunnel construction machinery - earth pressure balance shield machine. my country has long relied on imports, with long delivery times and high prices. [0003] The concept of the invention is based on ①Cheng Daxian's "Mechanical Design Manual" Volume 3. Figure 14-5-31; ②Zhu Xiaolu's "Gear Transmission Design Manual" Figure 7-23; ③"Suspension Balanced Planetary Gear Reducer" 95243413. X; ④ Zhang Zhan "Planetary Differential Transm...

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Application Information

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IPC IPC(8): F16H1/32
Inventor 吴声震
Owner 国茂精密传动(常州)有限公司
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