A Cam Mechanism with Large Stroke Based on Friction Transmission
A cam mechanism and friction transmission technology, which is applied to transmission devices, mechanical equipment, belts/chains/gears, etc., can solve the problems of the cam mechanism's transmission stroke not being very large, and the volume and weight of the cam mechanism being easy to increase, so as to increase the scope of use. , the effect of prolonging life and reducing rolling friction loss
Active Publication Date: 2017-09-15
CHONGQING HAOFENG MOLD
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Therefore, it is widely used in machine tools, textile machinery, light industrial machinery, printing machinery, and mechatronics assembly, but there are also certain shortcomings. The transmission stroke of the cam mechanism cannot be very large. If the design is large, it is easy to increase the volume of the cam mechanism. with weight
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[0031] Such as figure 1 , 2 As shown in 3, the present invention includes a first cam, a first rolling mechanism, a sliding plate, a shaft transmission mechanism, a second rolling mechanism, a second cam, a second sleeve, a second rotating shaft, a first sleeve, and a first shaft Sleeve guide block, first shaft, guide block guide rail, first sleeve return spring, base, second shaft support, first sleeve spring clamp end, fixed block clamp end, fixed block, such as figure 2 As shown, the first cam is installed and fixed at the end of the first rotating shaft, the first rotating shaft is fixed with the first cam, the first cam rotates with the first rotating shaft, the end of the sliding plate is fixed with a first rolling mechanism, and the first rolling mechanism rolls with the cam surface In cooperation, the rolling mechanism and the cam are in rolling contact, which greatly reduces friction loss; the first shaft sleeve is sleeved on one end of the first shaft, and the shaft ro...
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The invention belongs to the technical field of cams, and particularly relates to a large-stroke cam mechanism based on friction drive. The large-stroke cam mechanism based on friction drive comprises a first cam, a sliding sheet, a second cam, a second rotary shaft, a first rotary shaft, a first shaft sleeve reset spring, a base, a thrust spring, cones and a flat key. The first cam is in cooperation with the sliding sheet, and the rotary shaft of the first cam is in cooperation with the second cam. The second cam rotates to drive the rotary shaft of the first cam to carry out spatial displacement, and meanwhile the first cam rotates. Movement of the sliding sheet depends on cooperation of the first cam, the first cam rotary shaft and the second cam. According to the design, the size of the large-stroke cam mechanism with the two cams combined for movement is smaller than the size needed by a mechanism with one single cam, and the application range of the cam mechanism can be widened; in addition, because two simple cone friction drive mechanisms are used, it is guaranteed that the two cam rotary shafts with changeable separation distance keep a certain complex movement relation, and accordingly the simple cam mechanism meeting the request for stroke is designed.
Description
Technical field [0001] The invention belongs to the technical field of cams, and in particular relates to a cam mechanism with a large stroke based on friction transmission. Background technique [0002] The current transmission characteristics of the cam mechanism are simple, compact, and convenient in design, and can realize any desired movement of the follower. Therefore, it is widely used in machine tools, textile machinery, light industrial machinery, printing machinery, mechatronics assembly, but there are also certain shortcomings. The travel of the cam mechanism cannot be very large. If the design is large, it is easy to increase the volume of the cam mechanism With weight. In many designs, the cam volume required by the required working conditions is too large, so that designers abandon the cam mechanism and use a complex alternative transmission mechanism, which increases the cost and reduces the reliability. Therefore, it is very necessary to design a cam transmissio...
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IPC IPC(8): F16H25/14
CPCF16H25/14
Inventor 黄琳琳朱家乐
Owner CHONGQING HAOFENG MOLD