Stepless transmission

Abstract

The invention provides a stepless transmission. A shell body is arranged on the stepless transmission, a middle shell is arranged in the middle of the shell body, a first end cover and a second end cover are arranged on the two sides of the middle shell respectively, a first shaft is arranged in the middle of the first end cover in a penetrating mode, the interior of the first shaft is of a cavitystructure, a first sun wheel is fixedly arranged on the first shaft, a first planetary gear group is formed by first planetary wheels and the first sun wheel, a second shaft is arranged in the middleof the second end cover in a penetrating mode, a second sun wheel is fixedly arranged on the second shaft, and a second planetary gear group is formed by second planetary wheels and the second sun wheel; and a bucket wheel planetary gear group is formed by the first planetary gear group and the second planetary gear group, a third shaft is fixedly arranged in the middle of a bucket wheel sun wheel and penetrates through a first supporting frame and the first shaft with the interior of a hollow structure. The stepless transmission solves the technical problem that when a bucket wheel of the stepless transmission rotates, the bucket wheel allocates the input torque or increases the resistance torque, and the bucket wheel cannot be controlled through the external force and can be widely usedin the field of transmission.

Description

technical field [0001] The invention relates to a mechanical transmission device, in particular to a continuously variable transmission. Background technique [0002] An existing continuously variable transmission is provided with an outer casing, an intermediate casing is arranged in the middle of the outer casing, a first end cover and a second end cover are respectively arranged on both sides of the intermediate casing, and the interior of the intermediate casing is a cavity structure. The cavity inside the middle housing forms an inner cavity with the inner sides of the first end cover and the second end cover; a first shaft runs through the middle of the first end cover, and the first shaft is rotatably connected with the first end cover, and the first shaft The first sun gear is fixed on the top, the first sun gear is located inside the first end cover, the first sun gear is adjacent to a first support frame, the first shaft passes through the first support frame, the ...

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Problems solved by technology

[0003] The disadvantage of this continuously variable transmission structure is that since the bucket wheel sun gear is rigidly connected to the first sun gear on the first shaft, when the first shaft of the continuously variable transmission is used as the input end, the torque that provides the rotation of the bucket wheel comes from the first The rotation of the bucket wheel distributes a part of the input torque of the first shaft. When the first shaft provides insufficient torque, the output torque will be even more insufficient; when the second shaft of the continuously variable transmission is used as the input end, it provides bucket wheel rotation. The torque comes from the first shaft, and the rotation of the bucket wheel increases the resistance torque of the first shaft. When the torque provided by the second shaft is insufficient, the output torque will be even more insufficient, and the CVT cannot increase functions and meet more requirements. Condition

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