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Double-eccentricity cycloid cylindrical gear

A cylindrical gear, double eccentric technology, applied in belts/chains/gears, elements with teeth, portable lifting devices, etc., can solve problems such as operating fluctuations

Active Publication Date: 2014-03-26
陕西法士特沃克齿轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The meshing line of the involute cylindrical gear is a straight line, and the meshing line of the cycloidal gear is a circle. The coincidence coefficient is generally between 1.1 and 1.7, that is to say, during the transmission process, sometimes a pair of teeth are stressed. Sometimes two pairs of gear teeth are stressed. Although the gear precision can be made very high, due to the existence of elastic deformation, there will also be running fluctuations.

Method used

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Embodiment

[0420] According to the above-mentioned invention, a gear transmission with external meshing internal cycloidal gears is designed, modulus M=1mm, Z 1 =40, Z 2 =61, Ha * =1,θ=7°, make OO 1 ’And X 1 The axis intersects at O 1 ’, at this time OR 1 =20.1502mm, make OO 2 ’And X 2 The axis intersects at O 2 ’, at this time OR 2 =25.6915mm, calculated according to formula 28 and formula 29, the coincidence coefficient of the lower left part is ε 1 =1.1542, the effective root circle diameter of gear 1 f 1 =39.1210mm, calculated according to formula 31 and formula 32, the coincidence coefficient ε of the upper right part can be obtained 2 =1.1563, f 2 =50.1176mm, and finally get the coincidence coefficient of the gear pair ε=ε 1 +ε 2 =2.3105. This shows that in the gear transmission process, sometimes two pairs of gear teeth are stressed, sometimes three pairs of gear teeth are stressed, thereby improving the coincidence coefficient and transmission stability of the gear pair, and drawing ...

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Abstract

The invention provides a double-eccentricity cycloid cylindrical gear applicable to a transmission mechanism. The meshing line of the gear is formed by two sections of eccentric arcs CO-OF, EO-OD or CO-OF'. The gear contour calculated according to the meshing line is formed by two sections eccentric cycloids. By the arrangement, the length of the meshing line of the gear is increased, the stress condition of a gear root is improved, and gear meshing contact ratio, transmission stability and load capacity of the gear are increased. In addition, the gear is especially applicable to power transmission devices in environments such as a heavy-load environment and a highly-stable environment.

Description

Technical field [0001] The invention relates to the design and manufacture of a double eccentric cycloidal gear in the field of gear transmission, in particular to a double eccentric cycloidal cylindrical gear, which is used to improve the meshing overlap and the smoothness of the gears. This gear is suitable for various gears In the transmission mechanism. Background technique [0002] Generally, the gears used in parallel shaft gear transmission are involute gears and cycloid gears. The meshing line of the involute cylindrical gear is a straight line, and the meshing line of the cycloid gear is a circle, and the coincidence coefficient is generally between 1.1-1.7. That is to say, during the transmission process, sometimes a pair of gear teeth are stressed. Sometimes two pairs of gear teeth are stressed. Although the gear accuracy can be made very high, due to the existence of elastic deformation, operation fluctuations will also occur. Summary of the invention [0003] In vie...

Claims

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Application Information

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IPC IPC(8): F16H55/17
CPCF16H55/0806F16H55/17
Inventor 杨奇俊苏永辉王洪建张武刚
Owner 陕西法士特沃克齿轮有限公司
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