A two-stage planetary transmission
A planetary transmission, planetary gear technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of low speed, insufficient speed, etc.
Active Publication Date: 2017-01-25
周景顺
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Problems solved by technology
[0002] Modern machine tools driven by variable frequency motors are usually directly driven by the variable frequency motor connected to the spindle. Although the variable frequency motor can adjust the speed, it can meet the requirements of low speed, large feed and high torque when cutting large diameter blanks. When high finish is required for small diameter and long parts, the speed is often not enough, and vice versa
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[0008] like figure 1 , 2 As shown, a two-stage planetary transmission of the present invention includes an input shaft 1, an output shaft 9, a housing 5, and a fixed support frame 6. The input shaft 1 is processed with a sun gear and a planetary gear 2 and fixed on the housing. The fixed internal gear 3 cooperates to form a planetary reduction mechanism. A planetary gear bracket 4 with internal teeth is arranged between the planetary gear 2 and the housing 5. A clutch 10 is fixedly connected to the inner end of the input shaft 1. The inner part of the clutch 10 and the planetary bracket 4 The teeth are alternately connected with the sliding clutch 7 set on the inner end of the output shaft to form a secondary output; the sliding clutch 7 is connected to the hydraulic cylinder 8 arranged in the housing, and the hydraulic cylinder controls the sliding clutch to slide at two positions, and the two Each station realizes two-stage variable speed transmission; the input shaft 1, ou...
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The invention discloses a secondary planetary transmission, which belongs to machine tool accessories. The secondary planetary transmission comprises an input shaft, an output shaft, a shell and a fixed bracket. The secondary planetary transmission is characterized in that a sun gear and a planet gear are processed on the input shaft and are matched with an inner gear fixed on the shell, so as to form a planet speed reducing mechanism, a planet gear bracket with inner teeth is arranged between the planet gear and the shell, a clutch is fixedly connected to the inner end of the input shaft, the clutch and an inner gear of the planet gear bracket are respectively connected with a sliding clutch which sleeves the inner end of the output shaft in an alternate staggered mode, the sliding clutch is connected with a hydraulic cylinder arranged in the shell, and the input shaft, the output shaft, the planet gear and the whole transmission mechanism are installed in the shell by bearings. According to the secondary planetary transmission, the planet gear speed reducing mechanism is reasonably used, the planet bracket and the sliding clutch are designed, so as to form secondary transmission of the planet bracket and a main shaft, and secondary speed change is realized by hydraulic control over the sliding clutch.
Description
technical field [0001] The invention relates to a machine tool accessory, in particular to a two-stage planetary transmission. Background technique [0002] Modern machine tools driven by variable frequency motors are usually directly driven by the variable frequency motor connected to the spindle. Although the variable frequency motor can adjust the speed, it can meet the requirements of low speed, large feed and high torque when cutting large diameter blanks. When a high finish is required for a long piece with a small diameter, the speed is often not enough, and vice versa. Contents of the invention [0003] In order to meet the two different requirements of processing large diameter, large feed, low speed and high torque, small diameter and less length, high speed and high finish, the present invention designs a two-stage planetary transmission. The technical solution is: a two-stage planetary transmission, including an input shaft, an output shaft, a housing, and a f...
Claims
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IPC IPC(8): F16H3/44
CPCF16H3/70
Inventor 汪威周景顺
Owner 周景顺