Reducer with bevel gear and hypocycloid in large transmission ratio for ore grinding machine

Abstract

The invention relates to the technical field of reducing the speed of an ore grinding machine. A reducer with a bevel gear and a hypocycloid in large transmission ratio for an ore grinding machine is characterized by comprising a bevel gear pair and a cycloid transmission part; the bevel gear pair comprises driving and driven bevel gears and the cycloid transmission part is composed of a machine body, an input shaft, eccentric bearings, a cycloid gear, an inner cycloid gear ring, a W mechanism and bearings; the W mechanism comprises an output shaft, a column pin, a uniform loading disc and an annular plate; in the W mechanism, the output shaft is supported on an inner hole of the machine body through utilizing the bearing and an inner hole of the uniform loading disc is supported on the outer circle of a flange of an end cover through utilizing the bearing; in four single-eccentric bearings: the phase difference between the first bearing and the second bearing and the phase difference between the third bearing and the fourth bearing are 180 DEG and the phase of the second bearing is same as that of the third bearing. In the invention, the reducer has the beneficial effects as follows: (1) the hypocycloid gear is engaged by purely rolling, so that the bearing capability is improved by 2-3 times; (2) the length of the axial direction is reduced by 45-55% and the cost is reduced by 40-50%; (3) the reversed installation service life of the cycloid gear is doubled; and (4) the inertia force and the inertia moment are completely balanced in theory when the reducer is operated.

Description

technical field [0001] The invention relates to the technical field of mine mill deceleration, and relates to a bevel gear-hypocycloid large transmission ratio reducer for mine mills. Background technique [0002] CITIC Heavy Industry Machinery Co., Ltd., Luoyang Mining Machinery Design and Research Institute "Conical Planetary Large Transmission Ratio Reducer for Mining Mill Slow Drive Transmission" 200810231115.8 to meet the needs of mining mill slow drive work. The conception of the planetary part of the invention is related to 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 Figure 8-4 of Zhang Zhan's "Planetary Differential Transmission Device"; In addition, the invention claims that the transmission efficiency is ≥97%, but Zhu Xiaolu's "Gear Transmission Design Manual" 1030 pages, "Mechanical Transmission Device Selection Manual...

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Problems solved by technology

The conception of the planetary part of the invention is related to 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 Figure 8-4 in Zhang Zhan's "Planetary Differential Transmission Device";

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