Reduction device enabling size reduction of large bearing of shield machine
A reduction gear, shield machine technology, applied in the direction of transmission, gear transmission, transmission parts, etc., can solve the problems of low thermal power, temperature rise, poor rigidity of the planetary carrier, etc., to achieve small size, high efficiency, low cost effect
Inactive Publication Date: 2018-08-31
陈卫
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[0024] The present invention replaces the three-stage planet with a single-stage small tooth difference, a deceleration device that shrinks the large bearing of the shield machine, and solves the problems of the "main reducer" of the shield machine in my country for many years. technical problems
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[0094] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below in conjunction with the accompanying drawings:
[0095]A reduction device for shrinking the large bearing of a shield machine, comprising a main base 1, a large end cover 16 and a transmission member with a small tooth difference arranged in the main base 1, the input end of the main base 1 is connected to the large end cover 16, the The few-tooth-difference transmission part includes an output mechanism, an input shaft 18, a planetary wheel 9 and four identical center eccentric bearings 10 arranged at the shaft extension end of the input shaft 18. Among the four center eccentric bearings: the first and the second and the third and the second The four phase differences are all 180°, the second and third phases are the same, the four center eccentric bearings respectively support four identical planetary wheels 9, and the inertial force and moment of inertia are compl...
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The invention relates to the field of shield machine reduction technology. A reduction device enabling size reduction of a large bearing of a shield machine includes a main base, a large end cover anda small tooth difference transmission piece. The device is characterized in that the mounting dimension of the main engine base is identical to that of a third stage planetary outer housing in background art; a left rack and a right rack in an output mechanism are fastened with screws; the large end cover is fastened at the input end of the main engine base while the other end of the main enginebase is sealed with a round ring plate, so that a round ring shaped cooling cavity is formed; the cylinder body of the large end cover is provided with an inlet and an outlet; a temperature sensor isarranged near the outlet; splitter gears on two sides of a cutter small gear on an output shaft engage with cutter large gear rings; oil storage cups provided with magnetic objects are arranged at thebottoms of the main engine base; a bearing, which fits with an eccentric bushing, on a pin, is a roller bearing, a roller or a slide bearing; the small tooth difference transmission piece is a cycloid part, a double cycloid part or a star wheel part. The invention has technical effects that technical difficulty of the cutter large gear rings is lowered and localization is facilitated; the lengthis reduced by 25-30% and the weight is reduced by 20-25%; heat dissipation is good; temperature information is fed back; iron scraps in oil are absorbed, so that the service life of oil is prolonged;and the output mechanism is good in rigidity.
Description
【Technical field】 [0001] The invention relates to the technical field of special deceleration for earth pressure balance shield machine, and replaces the "main reducer" of the background technology with three-stage involute planetary series in series with a single-stage small tooth difference, a deceleration device that reduces the size of the large bearing of the shield machine. 【Background technique】 [0002] Background technology 1: "High-power three-stage planetary reducer for earth pressure balance shield machine" (200810231114.1), which is a sub-project of the National 863 "Key Technology of Full-Section Tunneling Machine" "High-power reducer for earth pressure balance shield machine 》The declared invention patent. [0003] Background technology two: "240,000 Nm shield machine main drive reducer" (201410445870.X), was recognized by well-known experts and professors organized by the Ministry of Industry and Information Technology on December 25, 2015: the main technical...
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IPC IPC(8): F16H1/32F16H57/02F16H57/029F16H57/031F16H57/04E21D9/06
CPCE21D9/06F16H1/32F16H57/02F16H57/029F16H57/031F16H57/0402F16H57/0413F16H57/045F16H2001/325F16H2001/327F16H2057/02069F16H2057/02086F16H2057/085
Inventor 吴声震
Owner 陈卫