A speed change mechanism and winding device thereof
A speed change mechanism and needle rolling technology, which is applied to transmission devices, transmission device parts, gear transmissions, etc., can solve problems such as sudden changes in needle winding speed, difficulty in tension control, and excessive tension fluctuations in pole pieces, so as to reduce tension fluctuations, The effect of increasing winding speed, improving product quality and processing efficiency
Active Publication Date: 2020-08-11
深圳市大族锂电智能装备有限公司
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- Claims
- Application Information
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a speed change mechanism and its winding device, which aims to solve the problem that the sudden change in the thread speed of the winding needle in the existing winding device causes excessive fluctuations in the tension of the pole piece, which makes it difficult to control the tension and affects the winding of the battery. quality problem
Method used
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[0022] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.
[0023] Such as figure 2 As shown, the present invention provides a transmission mechanism 100 , including a base 10 , an oval gear set 20 , a sector gear set 30 , and an input shaft 40 and an output shaft 50 rotatably mounted on the base 10 . The input shaft 40 is transmission-connected with the output shaft 50 through the oval gear set 20 and the sector gear set 30. When the input shaft 40 rotates at a uniform angular speed, the output shaft 50 rotates at a variable angular speed. When in use, the winding needle is coaxially connected with the output shaft 50, and the output shaft 50 drives the oval or diamond-shaped winding needle to rotate at a variable angular speed, so that the linear speed of the winding needle is uniform, which greatly reduces the tension fluctuation of the pole piece during the winding process. While increasing t...
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The invention relates to a speed change mechanism and its winding device, comprising a base, an elliptical gear set, a sector gear set, an input shaft and an output shaft rotatably mounted on the base, and the input shaft is driven by the elliptical gear set and the sector gear set with the output shaft connected, when the input shaft rotates at a constant angular velocity, the output shaft rotates at a variable angular velocity. When in use, the winding needle is coaxially connected to the output shaft, and the output shaft drives the elliptical or diamond winding needle to rotate at variable angular speed, so that the linear speed of the winding needle is uniform, which greatly reduces the tension fluctuation of the pole piece during the winding process and improves the winding speed. The winding speed can also improve product quality and processing efficiency.
Description
technical field [0001] The invention relates to the technical field of electric core processing, in particular to a speed change mechanism and a winding device thereof. Background technique [0002] Since the final shape of the battery cell is square, in order to meet this requirement, the winding needles of domestic winding machine manufacturers are generally designed to be elliptical or diamond-shaped at this stage. The sheet tension fluctuates too much, the tension control is difficult, and the production performance of the equipment is low. [0003] Such as figure 1 As shown, the winding device includes a winding needle 1, a motor 2 and a gearbox 3. The winding needle 1 is flat and close to an ellipse. The output of the existing motor 2 and the gearbox 3 is a uniform angular velocity, so the spindle of the winding needle 1 is also uniform. Angular speed, that is, the winding needle 1 is doing cam motion. The winding speed of the winding needle 1 is the periodic line s...
Claims
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IPC IPC(8): F16H3/091F16H57/021H01M10/04H01M6/00
CPCF16H3/091F16H57/021H01M6/00H01M10/04Y02P70/50
Inventor 黄润生田丽华余良黄际祥黄祥虎陈师光高云峰
Owner 深圳市大族锂电智能装备有限公司