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Lever bracket mechanism for reducing transmission backlash of gears

A technology of gear transmission and support mechanism, which is applied in the direction of gear transmission, transmission, belt/chain/gear, etc., which can solve the problems of difficult adjustment, difficulty in ensuring center distance accuracy, side clearance, and increase in backlash

Inactive Publication Date: 2011-03-16
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods of reducing the backlash mainly include: adjusting the center distance method, the method of contacting the hairspring, and the two-piece gear control backlash. Among them, the method of double-piece gear control backlash is difficult to adjust and the backlash increases after a long period of use. Then adjust; the disadvantage of the contact hairspring method is that the gears in the transmission chain can only rotate a limited angle; and the current adjustment center distance method basically adopts the design and processing of the gear shaft as an eccentric shaft. When installing, adjust the angle of the supporting part. The eccentric shaft changes the eccentric distance to control the backlash, but this method is difficult to guarantee the accuracy of the center distance and backlash after long-term use

Method used

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  • Lever bracket mechanism for reducing transmission backlash of gears
  • Lever bracket mechanism for reducing transmission backlash of gears
  • Lever bracket mechanism for reducing transmission backlash of gears

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Embodiment Construction

[0011] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0012] combine figure 1 with figure 2 The composition of the present invention includes: motor 1, reducer 2, lever bracket 3, pin shaft 4, screw group 5, small round nut 6, bolt 7, guide plate 8, compression spring 9, bracket 10, gear mounting body 11, Screw group 12, gear 13 and gear 14.

[0013] Fix the speed reducer 2 on the lever bracket 3 through the screw group 12, and then fix a gear 13 on the output shaft of the speed reducer 2; fix the bracket 10 on the gear mounting body 11 through the screw group 5, and process on the bracket 10 There is a hole, one end of the lever bracket 3 is processed with a hole, the pin shaft 4 passes through the above-mentioned hole, and the insertion end of the pin shaft 4 is screwed into the pin shaft 4 with a small round nut 6, and the pin shaft 4 is axially fixed, so that the lever bracket 3 can Rotate around the axis of ...

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Abstract

The invention provides a lever bracket mechanism for reducing transmission backlash of gears. The mechanism comprises a pair of gears which are engaged with each other, one of the gears is arranged ona gear installation body through a rotating shaft gear, the gear installation body is fixed with a support, one end of a lever bracket is hinged to the support, the other end of the lever bracket isprovided with a through hole, the through hole is inserted on a bolt on the gear installation body, the bolt is sleeved with a compression spring and a compression spring locking nut, a reducer is fixedly arranged on the lever bracket, an input shaft of the reducer is connected with an output shaft of a motor, and the other gear is arranged on an output shaft of the reducer. The invention adopts anovel method for reducing transmission side clearance of the gears which is safer and more reliable and has convenient installation, and ensures that the gear arranged on the lever bracket and the gear engaged with the gear arranged on the lever bracket have smallest central distance by adopting the compression spring.

Description

(1) Technical field [0001] The invention relates to a gear transmission mechanism, in particular to a lever support mechanism for reducing backlash in gear transmission. (2) Background technology [0002] Ideally, due to manufacturing and installation errors, a pair of gears that mesh with each other must have a minimum backlash to compensate for thermal deformation and provide a space for storing lubricating oil. Therefore, a reasonable gap is specified according to the usage situation. The methods of reducing the backlash mainly include: adjusting the center distance method, the method of contacting the hairspring, and the two-piece gear control backlash. Among them, the method of double-piece gear control backlash is difficult to adjust and the backlash increases after a long period of use. Then adjust; the disadvantage of the contact hairspring method is that the gears in the transmission chain can only rotate a limited angle; and the current adjustment center distance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/06
Inventor 刘少刚杜宏旺唐德威赵亚楠王士成
Owner HARBIN ENG UNIV
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