Speed reducer for planetary differential motion mechanical speed regulation

Abstract

A speed reducer for planetary differential motion mechanical speed regulation comprises a front end cover 1, a box body, a ventilation cover 3, a rear end cover 4, a high-speed planetary portion and a low-speed planetary portion. The high-speed planetary portion comprises a high-speed gear shaft 5, a high-speed sun wheel 6, a high-speed planetary carrier 7, a high-speed planetary wheel shaft 8, a high-speed planetary wheel 9 and a high-speed inner gear 10. The high-speed gear shaft 5 penetrates out of the center of a bearing cover 11. The high-speed sun wheel 6 is installed on the high-speed gear shaft 5 through inner teeth. The high-speed planetary carrier 7 is installed on an umbrella handle gear. The low-speed planetary portion comprises a low-speed planetary frame 12, a low-speed planetary wheel shaft 13, a low-speed planetary wheel 14 and a low-speed inner gear 15. The low-speed planetary frame 12 is arranged inside the box body 2. The low-speed planetary wheel shaft 13 and the low-speed planetary wheel 14 are both distributed on the low-speed planetary frame 12. The low-speed inner gear 15 is meshed with the low-speed planetary wheel 14. Compared with the prior art, the speed reducer has the advantages of being high in transmission efficiency, long in service life, small in working noise, low in production cost, convenient to maintain and the like.

Description

technical field [0001] The invention relates to a deceleration mechanism of a mechanical speed-regulating explosion-proof hoisting winch used in underground mines, in particular to a planetary differential mechanical speed-regulating reducer. Background technique [0002] Existing mining hoisting winches all use common deceleration mechanisms, that is, adopt general deceleration boxes and resistor step-down for deceleration and speed regulation. There are following deficiencies in the deceleration mechanism of this mechanical speed regulation explosion-proof lifting winch: [0003] 1. The input end of the speed-regulating clutch device is supported on the motor shaft through the motor shaft sleeve, so that the motor bearing is subjected to a large radial force, the design is unreasonable, and the service life of the motor is short. [0004] 2. The internal planetary mechanism of the speed-adjusting clutch device generates a lot of heat during the movement. Due to its comple...

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Problems solved by technology

[0003] 1. The input end of the speed regulating clutch device is supported on the motor shaft through the motor shaft sleeve, so that the motor bearing is subjected to a large radial force, the design is unreasonable, and the service life of the motor is short

[0004] 2. The internal planetary mechanism of the speed-adjusting clutch device generates a lot of heat during movement. Due to its complex structure and poor lubrication, a large amount of heat cannot be dissipated, which reduces the gear meshing accuracy and may even cause gluing.

[0005] 3. The outer edge of the inner ring gear is used as the brake wheel, and the frequent contact and friction with the brake skin will generate more heat and shorten the life of the gear

[0006] 4. The structure is complex, the cost is high, and the energy consumption is large

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