Novel planetary gear reducer
A gear reducer, planetary technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of large transmission ratio, high production cost, large volume of the reduction box, etc., to improve the reduction ratio, reduce The effect of small volume and large transmission ratio
Inactive Publication Date: 2013-05-29
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology
However, the internal structure adopts a planetary gear train structure, which leads to a large volume of the reduction box, which limits its scope of use, and the planetary transmission structure is complex, with many parts, large volume, high production cost, high precision requirements, and inconvenient maintenance.
In order to solve the large volume of the planetary transmission reducer in the prior art and retain the characteristics of its large transmission ratio, the present invention proposes to design a new type of planetary gear reducer with double annular ring gears
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[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0009] Such as figure 1 As shown, the novel planetary gear reducer of the present invention includes a front sun gear 1, a front planetary gear set 2, a rear planetary gear set 4, a double ring ring gear 3 and a rear sun gear 5. The front sun gear 1, the front planetary gear set 2 and the double annular ring gear 3 form the epicyclic gear train 1, and the rear sun gear 5, the rear planetary gear set 4 and the double annular ring gear 3 form the epicyclic gear train 2.
[0010] During use, power is introduced from one end of the front sun gear 1, and in the epicyclic gear train 1, the position of the front planetary gear set 2 relative to the frame remains unchanged, but it can rotate itself. The double ring ring gear 3 rotates relative to the frame. The rotation of the front sun gear 1 makes the double annular ring gear 3 rotate because the front plan...
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The invention relates to a novel planetary gear reducer. A first epicyclic gear train is composed of a front sun wheel, a front planet wheel set and a double circular inner gear ring. A second epicyclic gear train is composed of a rear sun wheel, a rear planet wheel set and the double circular inner gear ring. In the first epicyclic gear train, a central shaft of the front planet wheel set and a rack are fixedly connected, a planet wheel of the front planet wheel set rotates around the central shaft, the double circular inner gear ring and the rack rotate oppositely, and the front sun wheel and a motive power incoming end are connected. In the second epicyclic gear train, the rear sun wheel and the front sun wheel 1 are coaxial, a planet carrier output shaft connected with the rear planet wheel set planet is coaxial with the front sun wheel and the rear sun wheel, and the planet carrier output shaft and a motive power output shaft are connected. Due to the fact that the double circular inner gear ring structure is adopted, the double circular inner gear ring can rotate opposite to the rack. Meanwhile, due to the coaxial design of the front sun wheel, the rear sun wheel and the planet carrier, the size of a planet transmission mechanism is reduced, a reduction ratio is improved, and the designed planet transmission mechanism has the advantages of being small in size and large in transmission ratio.
Description
technical field [0001] The invention relates to a new type of gear reducer, in particular to a planetary gear reducer with a double annular ring gear and a large reduction ratio. A double annular ring gear planetary gear reducer with large reduction ratio. Background technique [0002] The reducer is an independent closed transmission device between the prime mover and the working machine, which is used to reduce the speed and increase the torque to meet the working needs. At present, the main types of domestic reducers include gear reducers, worm reducers, gear-worm reducers and planetary gear reducers, etc., and planetary reducers are widely used in industrial production due to their high transmission efficiency and wide range of transmission ratios. middle. However, the internal structure adopts a planetary gear train structure, which leads to a large volume of the reduction box, which limits its scope of use, and the planetary transmission structure is complex, with ma...
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IPC IPC(8): F16H1/28
Inventor 易金花喻洪流张颖陈爽
Owner UNIV OF SHANGHAI FOR SCI & TECH