CN103307255A - Gear transmission system capable of eliminating gear transmission clearance - Google Patents
Gear transmission system capable of eliminating gear transmission clearance Download PDFInfo
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- CN103307255A CN103307255A CN2013102325658A CN201310232565A CN103307255A CN 103307255 A CN103307255 A CN 103307255A CN 2013102325658 A CN2013102325658 A CN 2013102325658A CN 201310232565 A CN201310232565 A CN 201310232565A CN 103307255 A CN103307255 A CN 103307255A
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- gear
- gear transmission
- containing groove
- eliminating
- free
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Abstract
The invention discloses a gear transmission system capable of eliminating a gear transmission clearance, and belongs to the technical field of gear transmission systems. The gear transmission system capable of eliminating the gear transmission clearance comprises a gear A and a gear B which are meshed with each other, wherein a step surface capable of accommodating a movable gear is concavely arranged on the upper end surface of the gear A; the tooth number, the tip diameter and the root diameter of the movable gear are the same as those of the gear A; the axis of the movable gear is superposed with the axis of the gear A; the movable gear is meshed with the gear B; a downwards protruding fixing shaft is fixed on the lower end surface of the movable gear; an accommodating slot capable of accommodating the fixing shaft is formed in the step surface of the gear A; a pressed elastomer is arranged inside the accommodating slot; one end of the pressed elastomer is pressed against the side wall of the fixing shaft; and the other end of the pressed elastomer is pressed against the side wall of the accommodating slot. The clearance between two mutually-meshed main gears can be eliminated by arranging the movable gear which can deflect, so that precise transmission between the two gears is achieved; and the gear transmission system is simple and practical in structure.
Description
Technical field
The present invention discloses a kind of gear train assembly of eliminating the gear transmission gap, belongs to the technical field of gear train assembly.
Background technique
Common gear system is as shown in Figure 1: be combined into a gear train assembly by gear A 1', gear B 2', in general gear transmission, there is not the transmission problem, but under the demanding situation of gear transmission, when for example requiring two gear transmissions not have the gap, following drive gap problem appears in general gear transmission meeting:
1. gear A 1', gear B 2' transverse tooth thickness in routine processing is less than normal, and it is gapped therefore will to produce the two-wheeled between cog in assembly process.
2. gear A 1', gear B 2' also can produce wearing and tearing between the gear teeth of gear A 1', gear B 2' in the normal operation process, make transverse tooth thickness diminish, therefore along with running time more long generation two-wheeled between cog the gap more big.
Having under the problems referred to above situation, do not reaching the purpose of accurate transmission between two gears.
Summary of the invention
The purpose of this invention is to provide a kind of gear train assembly of eliminating the gear transmission gap, can realize the accurate transmission between two gears.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of gear train assembly of eliminating the gear transmission gap, comprise the gear A and the gear B that are meshing with each other and arrange, the upper-end surface of described gear A be concaved with one can ccontaining free gear step surface, the number of teeth of this free gear, tip diameter, root diameter is all identical with gear A, the shaft axis of free gear overlaps with the shaft axis of gear A, this free gear is meshed with gear B simultaneously, fixedly there is the stationary axle of downward protrusion the lower end surface of free gear, offer the containing groove that can hold this stationary axle on the step surface of gear A, also be provided with the pressurized elastomer in this containing groove, pressurized elastomer one end withstands the stationary axle sidewall, and the other end withstands the containing groove sidewall.
As the further setting of such scheme, on the lower end surface of described gear A and the position corresponding with containing groove, offer counterbore, this counterbore is communicated with containing groove, cooperates in this counterbore simultaneously protecting cover is installed.The counterbore setting that is communicated with containing groove, conveniently detachable and maintenance.
The upper end of described stationary axle fixedly is plugged in the free gear, and the lower ends downward of stationary axle extends into to containing groove.
Described pressurized elastomer is compression spring.
A kind of gear train assembly of eliminating the gear transmission gap of the present invention is eliminated two gaps that are meshed between the master gear by installing the free gear that can produce off normal additional, has not only realized the accurate transmission between two gears, and simple in structure, practical.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of existing ordinary gear transmission system;
Fig. 2 is a kind of structural representation of eliminating the gear train assembly in gear transmission gap of the present invention;
Fig. 3 is that the A-A of Fig. 2 is to structural representation.
Embodiment
As Fig. 2, shown in Figure 3, a kind of gear train assembly of eliminating the gear transmission gap of the present invention, comprise the gear A 1 and the gear B 2 that are meshing with each other and arrange, wherein the upper-end surface of gear A 1 be concaved with one can ccontaining free gear 3 step surface 4, the number of teeth of this free gear 3, tip diameter, root diameter is all identical with gear A 1, the shaft axis of free gear 3 overlaps with the shaft axis of gear A 1, this free gear 3 is meshed with gear B 2 simultaneously, fixedly there is the stationary axle 5 of downward protrusion the lower end surface of free gear 3, offer the containing groove 6 that can hold this stationary axle 5 on the step surface 4 of gear A 1, also be provided with pressurized elastomer 7 in this containing groove 6, pressurized elastomer 7 one ends withstand stationary axle 5 sidewalls, and the other end withstands containing groove 6 sidewalls.
Be easy disassembly and maintenance, on the lower end surface of gear A 1 and the position corresponding with containing groove 6, offer counterbore 8, this counterbore 8 is communicated with containing groove 6, cooperates in this counterbore 8 simultaneously protecting cover 9 is installed.
In the present embodiment, the structure that specifically arranges of stationary axle 5 is: it (is to offer groove on the free gear 3 that the upper end of stationary axle 5 fixedly is plugged in the free gear 3, the upper end of stationary axle 5 is inserted in the groove, and fixing), the lower ends downward of stationary axle 5 extends into to containing groove 6.
In the present embodiment, pressurized elastomer 7 is preferably compression spring.
The present invention is a kind of, and to eliminate the working principle of gear train assembly in gear transmission gap as follows:
After gear A 1 and the gear B 2 normal assembling engagements some gaps are arranged, the elimination of this gap is to be realized by free gear 3 off normals that are installed on the gear A 1, and the wheel flank of tooth of being close to gear B 2 after the wheel flank of tooth off normal of free gear 3 is eliminated the gear backlash between gear A 1 and the gear B 2.It is to compensate this gear train assembly back lash by the stationary axle 5 that is fixed on the free gear 3 automatically under the elasticity restitution power of pressurized elastomer 7 that free gear 3 off normals are rotated.Because pressurized elastomer 7 one ends are close to the sidewall of stationary axle 5, the other end is close to the sidewall of containing groove 6, therefore pressurized elastomer 7 has pressure promotion stationary axle 5 to force free gear 3 off normals to be rotated all the time, guarantees this gear train assembly stable rotation under the engagement of no gap with this.
Above-described embodiment only is used for explaining inventive concept of the present invention, but not to the restriction of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (4)
1. the gear train assembly that can eliminate the gear transmission gap, comprise the gear A and the gear B that are meshing with each other and arrange, it is characterized in that: the upper-end surface of described gear A be concaved with one can ccontaining free gear step surface, the number of teeth of this free gear, tip diameter, root diameter is all identical with gear A, the shaft axis of free gear overlaps with the shaft axis of gear A, this free gear is meshed with gear B simultaneously, fixedly there is the stationary axle of downward protrusion the lower end surface of free gear, offer the containing groove that can hold this stationary axle on the step surface of gear A, also be provided with the pressurized elastomer in this containing groove, pressurized elastomer one end withstands the stationary axle sidewall, and the other end withstands the containing groove sidewall.
2. a kind of gear train assembly of eliminating the gear transmission gap as claimed in claim 1, it is characterized in that: on the lower end surface of described gear A and the position corresponding with containing groove, offer counterbore, this counterbore is communicated with containing groove, cooperates in this counterbore simultaneously protecting cover is installed.
3. a kind of gear train assembly of eliminating the gear transmission gap as claimed in claim 1 or 2, it is characterized in that: the upper end of described stationary axle fixedly is plugged in the free gear, and the lower ends downward of stationary axle extends into to containing groove.
4. a kind of gear train assembly of eliminating the gear transmission gap as claimed in claim 1, it is characterized in that: described pressurized elastomer is compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102325658A CN103307255A (en) | 2013-06-09 | 2013-06-09 | Gear transmission system capable of eliminating gear transmission clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102325658A CN103307255A (en) | 2013-06-09 | 2013-06-09 | Gear transmission system capable of eliminating gear transmission clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103307255A true CN103307255A (en) | 2013-09-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102325658A Pending CN103307255A (en) | 2013-06-09 | 2013-06-09 | Gear transmission system capable of eliminating gear transmission clearance |
Country Status (1)
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| CN (1) | CN103307255A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB177529A (en) * | 1921-03-22 | 1922-09-28 | De Dion Bouton Sa Ets | Improvements in or relating to gear wheels |
| JPS6235165A (en) * | 1985-08-08 | 1987-02-16 | Honda Motor Co Ltd | Backlash reducing device for gear transmission system |
| JPH06300115A (en) * | 1993-04-16 | 1994-10-28 | Daihatsu Motor Co Ltd | Scissors gear |
| JP2001132822A (en) * | 1999-11-01 | 2001-05-18 | Nok Corp | Gear device |
| CN2580208Y (en) * | 2002-11-02 | 2003-10-15 | 湖北汽车工业学院 | Automatic compensation mechanism for gear teeth side gap |
| CN1730983A (en) * | 2005-08-05 | 2006-02-08 | 江门联和发动机有限公司 | A kind of combined balance shaft gear |
| CN101382189A (en) * | 2008-09-23 | 2009-03-11 | 张家港市宏盛电子有限公司 | Side play compensation gear |
| CN101672357A (en) * | 2009-10-10 | 2010-03-17 | 宜昌长机科技有限责任公司 | Gear clearance elimination mechanism |
| CN202833953U (en) * | 2012-10-30 | 2013-03-27 | 贵州西南工具(集团)有限公司 | Worm wheel capable of automatically eliminating transmission gaps |
| CN203335784U (en) * | 2013-06-09 | 2013-12-11 | 诸暨市振兴机器制造有限公司 | Gear transmission system capable of eliminating gear transmission clearance |
-
2013
- 2013-06-09 CN CN2013102325658A patent/CN103307255A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB177529A (en) * | 1921-03-22 | 1922-09-28 | De Dion Bouton Sa Ets | Improvements in or relating to gear wheels |
| JPS6235165A (en) * | 1985-08-08 | 1987-02-16 | Honda Motor Co Ltd | Backlash reducing device for gear transmission system |
| JPH06300115A (en) * | 1993-04-16 | 1994-10-28 | Daihatsu Motor Co Ltd | Scissors gear |
| JP2001132822A (en) * | 1999-11-01 | 2001-05-18 | Nok Corp | Gear device |
| CN2580208Y (en) * | 2002-11-02 | 2003-10-15 | 湖北汽车工业学院 | Automatic compensation mechanism for gear teeth side gap |
| CN1730983A (en) * | 2005-08-05 | 2006-02-08 | 江门联和发动机有限公司 | A kind of combined balance shaft gear |
| CN101382189A (en) * | 2008-09-23 | 2009-03-11 | 张家港市宏盛电子有限公司 | Side play compensation gear |
| CN101672357A (en) * | 2009-10-10 | 2010-03-17 | 宜昌长机科技有限责任公司 | Gear clearance elimination mechanism |
| CN202833953U (en) * | 2012-10-30 | 2013-03-27 | 贵州西南工具(集团)有限公司 | Worm wheel capable of automatically eliminating transmission gaps |
| CN203335784U (en) * | 2013-06-09 | 2013-12-11 | 诸暨市振兴机器制造有限公司 | Gear transmission system capable of eliminating gear transmission clearance |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130918 |