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Eccentric chain wheel transmission device

An eccentric sprocket and transmission technology, applied in transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of difficulty, low overall structural strength, and high cost, achieving low cost and avoiding high cost , to construct simple effects

Inactive Publication Date: 2020-05-01
TIANHE COLLEGE GUANGDONG POLYTECHNIC NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, the variable angular velocity scheme in the prior art either has a weak overall structure and is not suitable for large-scale equipment, or it is only realized by the motor. This method has great impact on the structure, performance and control system of the motor. There are special requirements, which will lead to high cost and difficulty of this method, which also leads to the inability to maximize the comprehensive benefits of machinery in many cases

Method used

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  • Eccentric chain wheel transmission device
  • Eccentric chain wheel transmission device
  • Eccentric chain wheel transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 , Figure 4 , Figure 5 , Image 6 ,as well as Figure 7 A kind of eccentric sprocket transmission device shown, in order to realize chain transmission, comprises chain 2, driving sprocket 1, tensioning pulley 4, and driven sprocket 3 that are sequentially connected through the chain 2; wherein, the The driving sprocket 1 is configured to have a special tooth shape, and is used to provide power to the driven sprocket 3 through the chain 2; the tensioning wheel 4 is configured to have an engaging portion or The fitting friction part is used to adjust the tension of the chain 2; the driven sprocket 3 is configured to have a special tooth shape suitable for the driving sprocket 1 and the chain 2, and is used for according to the The angular velocity of the power output provided by the driving sprocket 1 changes periodically.

[0035] like figure 1 , figure 2 , image 3 ,as well as Figure 7 The e shown in the figure is the eccentricity, ω is the ang...

Embodiment 2

[0039] like figure 1 , Figure 4 , Figure 5 , Image 6 ,as well as Figure 7 The shown eccentric sprocket transmission device, in order to realize chain transmission, includes a chain 2, a driving sprocket 1, a tensioning wheel 4, and a driven sprocket 3 that are sequentially connected through the chain 2; wherein,

[0040] The driving sprocket 1 is configured to have a special tooth shape, and is used to provide power to the driven sprocket 3 through the chain 2;

[0041] The tensioning wheel 4 is configured to have an engaging portion or a fitting friction portion compatible with the chain 2 for adjusting the tension of the chain 2; the preferred solution in this embodiment is that the tensioning wheel 4 has an adjusting part configured to automatically adjust the position of the tensioning wheel 4 according to the tension of the chain 2 in motion, so that the tension of the chain 2 is within a preset range. Specifically, such as Figure 5As shown, the tensioning whee...

Embodiment 3

[0050] like figure 1 , Figure 4 , Figure 5 , Image 6 ,as well as Figure 7 The shown eccentric sprocket transmission device, in order to realize chain transmission, includes a chain 2, a driving sprocket 1, a tensioning wheel 4, and a driven sprocket 3 that are sequentially connected through the chain 2; wherein,

[0051] The driving sprocket 1 is configured to have a special tooth shape, and is used to provide power to the driven sprocket 3 through the chain 2;

[0052] The tensioning wheel 4 is configured to have an engaging portion or a fitting friction portion compatible with the chain 2 for adjusting the tension of the chain 2; the preferred solution in this embodiment is that the tensioning wheel 4 has an adjusting part configured to automatically adjust the position of the tensioning wheel 4 according to the tension of the chain 2 in motion, so that the tension of the chain 2 is within a preset range. Specifically, such as Figure 5 As shown, the tensioning whe...

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Abstract

The invention provides an eccentric chain wheel transmission device. The eccentric chain wheel transmission device comprises a driving chain wheel, a tensioning wheel and a driven chain wheel which are sequentially connected through a chain, wherein the driving chain wheel is configured to provide power for the driven chain wheel through the chain, the tensioning wheel is configured to adjust thetensioning degree of the chain, and the driven chain wheel is configured to output a periodically-changed angular speed according to the power provided by the driving chain wheel. In conclusion, by using the transmission device, variable angular speed transmission can be realized in a mechanical mode; the transmission device only has a simple mechanical system without the need of being provided with a complex electrical control system, thereby being simple in structure and low in cost and avoiding the problem that the cost of the electrical control system is high; and meanwhile, by using the tensioning wheel provided with an adjusting part, the problem of tooth jumping due to the fact that the chain wheels and the chain are not engaged enough because of abrasion after being used for a longtime can be avoided.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to an eccentric sprocket transmission device. Background technique [0002] The usual chain transmission mechanism can only achieve a uniform and uniform speed transmission at a certain speed, that is, the average speed of its output is constant angular velocity. Chain transmission is mostly used for manipulation control, such as various automatic packaging machinery, timing control of modern automobile engines, etc., all of which are chain transmission. [0003] In some cases, in order to meet the specific functions of machinery, especially automated machinery, the rotational speed output by the chain transmission structure is required to be variable. But at present, in the case of highly developed automation, the variable angular speed is basically realized by controlling the angular speed of the motor. [0004] After a massive search by the applicant, it was found that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/06F16H7/08
CPCF16H7/06F16H7/08
Inventor 李全民阎勤劳
Owner TIANHE COLLEGE GUANGDONG POLYTECHNIC NORMAL UNIV
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