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Double helix angle beveled wheel engage assistant

A helical gear and double helix technology, applied in belts/chains/gears, components with teeth, hoisting devices, etc., can solve the problems of poor manufacturability, difficult clearance adjustment, complex structure, etc., and achieve good manufacturability, coincidence The effect of large coefficient and high bearing capacity

Inactive Publication Date: 2008-02-06
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above technical solutions have complex structures and difficult assembly, and the bevel gears with radial displacement often require modification of the machine tool, which is poor in manufacturability
The existing helical gear meshing pair is difficult to adjust the gap because the direction of the helix angle and the size of the helix angle are the same.

Method used

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  • Double helix angle beveled wheel engage assistant

Examples

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Embodiment Construction

[0019] As shown in Figure 1, gear 1 and gear 2 are double helix angle helical gears with different helix angles. The right-handed helical tooth surface of gear 1 meshes with the left-handed helical tooth surface of gear 2; The right-handed helical tooth surfaces of gear 2 mesh. Due to the different helix angles, each tooth is tapered along the axial direction. Therefore, adjusting the relative position of gear 1 and gear 2 in the axial direction can adjust the meshing backlash of gear 1 and gear 2 to achieve precision. transmission.

[0020] Figure 2 shows the meshing of double helix angle helical gear teeth with opposite helix angles on the tooth surface, the double helix angle helical gear teeth 3 and 4 meshing with each other, the helix angles of teeth 3 and 4 Teeth of the same, opposite direction of rotation mesh. In Fig. 3, the helix angle of one tooth surface is zero, and the teeth 5 and 6 of the double helix angle helical gear with a non-zero helix angle of the other ...

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PUM

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Abstract

The present invention relates to a double helix angle helical gear meshing pair, which relates to a non-backlash or backlash adjustable precision gear meshing pair widely used in each field of the industry. The left tooth surface and the right tooth surface of a gear are respectively helical gear tooth surfaces with different helix angles, the helix angles of the left gear tooth surface and the right gear tooth surface of the gear are different, which form certain tapered angles along a gear axle line, the relative positions of mutually meshed gears are adjusted along the axle line to adjust the meshing backlash, and the precision transmission is realized. The double helix angle helical gear is formed through processing twice, thus the tooth thickness becomes thin, a tooth space becomes wide, the manufacturability is good, because the tooth surface of the helical gear is meshed, the present invention has the advantage of helical gear meshing transmission, large overlap coefficient, and high carrying capacity, thus being suitable for the high-speed input in the precision transmission.

Description

technical field [0001] The invention relates to a widely used meshing pair of precision transmission gears without backlash or with adjustable backlash. Background technique [0002] In traditional precision gear transmission, in order to achieve anti-backlash transmission or adjust meshing backlash, commonly used technical solutions include: adjusting center distance; spring-loaded double-plate gear; anti-backlash auxiliary gear transmission chain; Sheet gears; radially displaced bevel gears and other methods, related documents have patents: US3174356, US3171212, US5400672 and so on. However, the above technical scheme has complex structure and difficult assembly, and the bevel gear with radial displacement often needs to refit the machine tool, which is poor in manufacturability. The existing helical gear meshing pair is difficult to adjust the gap because the direction and magnitude of the helix angle are the same. Contents of the invention [0003] In order to overco...

Claims

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Application Information

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IPC IPC(8): F16H55/18F16H55/08
Inventor 王光建梁锡昌
Owner CHONGQING UNIV
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