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Helical gear and gap eliminating structure thereof

A helical gear and backlash elimination technology, applied in belts/chains/gears, components with teeth, portable lifting devices, etc. question

Inactive Publication Date: 2012-09-26
张文龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission gap affects the transmission accuracy, which in turn affects the manufacturing and processing accuracy
But there is no anti-backlash mechanism that effectively eliminates the transmission gap to improve the transmission accuracy.

Method used

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  • Helical gear and gap eliminating structure thereof
  • Helical gear and gap eliminating structure thereof

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Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] see figure 1 , a schematic diagram of the meshing of the helical gear 7 with the anti-backlash structure and the third helical gear 3 of other normal structures. The helical gear 7 includes a first part 1 and a second part 2 which are split along the cross section of the helical gear. The helical teeth on the first part 1 are first helical teeth 4 , and the helical teeth on the second part 2 are second helical teeth 5 . The second part 2 contains the hub 8 . Six counterbores 9 and 10 are evenly distributed on the first part 1 and the second part 2 along the circumferential direction of the helical gear 7 , and the counterbore part 11 of the counterbore 9 is opposite to the counterbore part 12 of the counterbore 10 . A helical cylindrical compression spring 13 is arranged in the opposite counterbore portions 11, 12, and the h...

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Abstract

The invention provides a helical gear gap eliminating structure used for eliminating the driving gap of a helical gear and a helical gear comprising the gap eliminating mechanism. The eliminating gap mechanism of the helical gear is characterized in that the helical gear is divide into two split parts along the cross section of the helical gear, when the two parts are arranged in a normal state, the two parts are elastic elements separated along an axial direction, and the two parts are in a force transmission connection along the circumferential direction.

Description

technical field [0001] The invention relates to a helical gear in mechanical transmission, in particular to a helical gear that can eliminate gear transmission gaps. technical background [0002] Helical gear transmission has a large transmission load and stable transmission, and is a commonly used transmission structure. However, due to various factors such as gear manufacturing accuracy, mechanical assembly accuracy, and assembly process requirements, there will inevitably be transmission gaps in gear transmission. The transmission gap affects the transmission accuracy, which in turn affects the manufacturing and processing accuracy. But there is no anti-backlash mechanism to effectively eliminate the transmission gap to improve the transmission accuracy. Contents of the invention [0003] The object of the present invention is to provide a helical gear anti-backlash structure for eliminating the transmission backlash of the helical gear. [0004] The anti-backlash st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/18
Inventor 张文龙李得保周华书王水军
Owner 张文龙
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