CN101915297A - Torsional spring type backlash gear mechanism - Google Patents
Torsional spring type backlash gear mechanism Download PDFInfo
- Publication number
- CN101915297A CN101915297A CN2010102397968A CN201010239796A CN101915297A CN 101915297 A CN101915297 A CN 101915297A CN 2010102397968 A CN2010102397968 A CN 2010102397968A CN 201010239796 A CN201010239796 A CN 201010239796A CN 101915297 A CN101915297 A CN 101915297A
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- China
- Prior art keywords
- driving wheel
- gear mechanism
- torsional spring
- backlash gear
- backlash
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Abstract
The invention discloses a torsional spring type backlash gear mechanism, comprising a first driving wheel, a second driving wheel and a positioning pin. A torsional spring is mounted in an annular groove between the first driving wheel and the second driving wheel, one end of the torsional spring is hung in a mounting hole of the first driving wheel, the other end of the torsional spring is hung in a mounting hole of the second driving wheel, the positioning pin penetrates through the first driving wheel and the second driving wheel through pin holes arranged on the first driving wheel and the second driving wheel which are pairwise machined into fully identical gear shapes, the annular groove, the mounting holes and the positioning pin holes are respectively arranged on the end surfaces of the first driving wheel and the second driving wheel, and a retainer ring for clamping a part is arranged on the second driving wheel. The backlash gear of the invention occupies small space, has greater torque force, full backlash and simple machining and manufacture of the gear structure so as to substitute a common torsional spring type or pressure spring type backlash gear mechanism.
Description
Technical field
The present invention relates to a kind of backlash gear mechanism, particularly a kind of take up room little, big, abundant, the simple backlash gear mechanism of manufacturing in the crack that disappears of torsion spring torsion.
Background technique
Backlash gear mechanism is mainly used in eliminates the return difference that gear backlash causes that gear transmission produces.
Traditional backlash gear mechanism is to force the angle that staggers after the clearance elimination gear assembling to be adjacent to engagement with conjugate gears bi-side zero-clearance by extension spring or stage clip, and reaches the return difference of eliminating the meshing backlass generation.But it is bigger that extension spring and stage clip generally take up room, if reduce the space, can cause the spring force deficiency again.
Summary of the invention
The purpose of this invention is to provide a kind of take up room little, big, abundant, the simple backlash gear mechanism of manufacturing in the crack that disappears of torsion spring torsion.
The objective of the invention is to be achieved through the following technical solutions:
A kind of torsional spring type backlash gear mechanism, comprise first driving wheel, second driving wheel and locating stud, in the circular groove between first driving wheel and second driving wheel torsion spring is installed, an end hangs in the first driving wheel mounting hole, and the other end hangs in the second driving wheel mounting hole; Locating stud places the two by the pin-and-hole that is arranged on first driving wheel and second driving wheel.
Preferably, first driving wheel, second driving wheel are the identical paired processing profile of tooth of profile of tooth.
Preferably, described first driving wheel, second driving wheel are provided with circular groove, mounting hole and positioning pin hole at end face.
Preferably, described second driving wheel is provided with the back-up ring that is used for clamping unit.
Beneficial effect of the present invention is, because that clearance elimination gear of the present invention takes up room is little, torsion spring torsion is bigger, and the crack that disappears is abundant, and the gear structure manufacturing is simple; Can replace the tension spring type commonly used at present and the backlash gear mechanism of pressure spring type.
Description of drawings
Fig. 1 is that gear backlash causes that gear transmission produces the schematic diagram of return difference;
Fig. 2 is the structure sectional view of a kind of torsional spring type backlash gear mechanism of the present invention;
Fig. 3 is that a kind of torsional spring type backlash gear mechanism of the present invention is eliminated the schematic representation in gap;
Fig. 4 is the structural representation (wherein Fig. 4-the 2nd, the side view of Fig. 4-1) of the torsion spring of a kind of torsional spring type backlash gear mechanism of the present invention;
Fig. 5 is the structural representation (wherein Fig. 5-the 2nd, the A-A sectional view of Fig. 5-1) of the present invention's first driving wheel;
Fig. 6 is the structural representation (wherein Fig. 6-the 2nd, the B-B sectional view of Fig. 6-1) of the present invention's second driving wheel.
Embodiment
In conjunction with the accompanying drawings the present invention is described in further detail according to embodiment below.
Gear backlash causes that the return difference principle that gear transmission produces sees Fig. 1, when driving wheel 7 is adjacent to follower 8 one lateral tooth flanks during to rotation to A, this moment again to B during to rotation driving wheel 7 to pass through sky and walk an end distance and behind M, could be adjacent to the follower 8 opposite side flank of tooth; So just cause driving wheel 7 to turn over an angle, and follower 8 does not have corresponding rotation, it is poor that driving wheel 7 just produces the angle of revolution, is called for short return difference.
See Fig. 2, this backlash gear mechanism can effectively be eliminated the return difference that produces because of gear backlash.First driving wheel 5 and second driving wheel 6 be the processing profile of tooth in pairs, the assurance profile of tooth is identical, second driving wheel, 6 central positions are provided with axle 1, the positioning pin hole 9,12 (seeing Fig. 5, Fig. 6) that while first driving wheel 5 and second driving wheel 6 have circular groove 11,14, mounting hole 10,13 and manufacture in the end face design, circular groove, mounting hole are used to install torsion spring 3, mounting hole 10 the other ends that torsion spring one end hangs over first driving wheel 5 hang over the mounting hole 13 of second driving wheel 6, after loading onto torsion spring 3, add certain torsion in advance and locating stud 4 is plugged, to guarantee that profile of tooth overlaps fully; Then backlash gear mechanism is packed into gear-box and take out locating stud 4, under the active force of torsion spring 3 first driving wheel 5 and second driving wheel 6 can relative rotations and and driven gear 8 teeth groove bi-side be adjacent to and mesh elimination gap (see figure 3).
Shown in Fig. 2-4, torsion spring 3 is installed in the circular groove between first driving wheel 5 and second driving wheel 6, with two gears rotation alignment pin-and-hole and after inserting locating stud, back-up ring 2 is loaded onto second driving wheel, 6 chuckings after torsion spring is packed into.During use this backlash gear mechanism packed into and take out locating stud 4 behind the speed reducer, first driving wheel 5 and second driving wheel 6 just are adjacent to engagement with conjugate gears teeth groove bi-side respectively under the effect of elastic force.
This structure clearance elimination gear takes up room little, and torsion spring torsion is bigger, and the crack that disappears is abundant, and the gear structure manufacturing is simple; Can replace the tension spring type commonly used at present and the backlash gear mechanism of pressure spring type.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other multi-form variation and changes on the basis of the above description.Here can't give exhaustive to all mode of executions.Everyly belong to the row that conspicuous variation that technological scheme of the present invention amplifies out or change still are in protection scope of the present invention.
Claims (4)
1. backlash gear mechanism, it is characterized in that: comprise first driving wheel, second driving wheel and locating stud, in the circular groove between first driving wheel and second driving wheel torsion spring is installed, an end hangs in the first driving wheel mounting hole, and the other end hangs in the second driving wheel mounting hole; Locating stud places the two by the pin-and-hole that is arranged on first driving wheel and second driving wheel.
2. backlash gear mechanism according to claim 1 is characterized in that: first driving wheel, second driving wheel are the identical paired processing profile of tooth of profile of tooth.
3. backlash gear mechanism according to claim 1 and 2 is characterized in that: described first driving wheel, second driving wheel are provided with circular groove, mounting hole and positioning pin hole at end face.
4. backlash gear mechanism according to claim 3 is characterized in that: described second driving wheel is provided with the back-up ring that is used for clamping unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102397968A CN101915297A (en) | 2010-07-26 | 2010-07-26 | Torsional spring type backlash gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102397968A CN101915297A (en) | 2010-07-26 | 2010-07-26 | Torsional spring type backlash gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101915297A true CN101915297A (en) | 2010-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102397968A Pending CN101915297A (en) | 2010-07-26 | 2010-07-26 | Torsional spring type backlash gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915297A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996757A (en) * | 2012-12-11 | 2013-03-27 | 北京遥测技术研究所 | Double gear backlash structure for staggered teeth regulation spring force |
| CN103216604A (en) * | 2013-04-17 | 2013-07-24 | 吴江市菀坪宝得利缝制设备机械厂 | Clearance compensation straight gear |
| CN103586650A (en) * | 2013-11-29 | 2014-02-19 | 重庆清平机械厂 | Anti-backlash gear machining method |
| WO2014101996A1 (en) | 2012-12-28 | 2014-07-03 | Gkn Sinter Metals Holding Gmbh | Divided toothed wheel |
| CN104121355A (en) * | 2013-04-27 | 2014-10-29 | 北京自动化控制设备研究所 | Gear mechanism capable of eliminating position feedback clearance |
| CN104179945A (en) * | 2014-07-25 | 2014-12-03 | 上海无线电设备研究所 | Double-gear assembly provided with backlash spring and mounting method thereof |
| CN104227699A (en) * | 2013-06-10 | 2014-12-24 | 株式会社安川电机 | Robot |
| CN105333122A (en) * | 2015-11-30 | 2016-02-17 | 哈尔滨科能熔敷科技有限公司 | Double-gear type wiggler with clearance eliminating function |
| CN108317238A (en) * | 2012-03-23 | 2018-07-24 | 联合工艺公司 | Planetary gear system arrangement with auxiliary oil system |
| CN110645337A (en) * | 2019-10-29 | 2020-01-03 | 北京联恒众达科技中心(有限合伙) | Encoder for eliminating gear pair backlash |
| CN113803411A (en) * | 2021-09-09 | 2021-12-17 | 昆明物理研究所 | Double-piece thin gear staggered tooth gap eliminating mechanism of cam type zoom focusing system of thermal infrared imager |
| US11815001B2 (en) | 2010-10-12 | 2023-11-14 | Rtx Corporation | Planetary gear system arrangement with auxiliary oil system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125977A (en) * | 1976-04-14 | 1977-10-22 | Matsushita Electric Ind Co Ltd | Gear apparatus |
| CN2729432Y (en) * | 2004-09-12 | 2005-09-28 | 郑州华萦化纤科技有限责任公司 | Gear with function for removing sideshake of subgear |
| CN101038025A (en) * | 2006-03-16 | 2007-09-19 | 光阳工业股份有限公司 | Noise preventing device of balance gear of crank |
| CN101598212A (en) * | 2009-07-06 | 2009-12-09 | 西华大学 | Automatically eliminate backlash mechanism |
-
2010
- 2010-07-26 CN CN2010102397968A patent/CN101915297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125977A (en) * | 1976-04-14 | 1977-10-22 | Matsushita Electric Ind Co Ltd | Gear apparatus |
| CN2729432Y (en) * | 2004-09-12 | 2005-09-28 | 郑州华萦化纤科技有限责任公司 | Gear with function for removing sideshake of subgear |
| CN101038025A (en) * | 2006-03-16 | 2007-09-19 | 光阳工业股份有限公司 | Noise preventing device of balance gear of crank |
| CN101598212A (en) * | 2009-07-06 | 2009-12-09 | 西华大学 | Automatically eliminate backlash mechanism |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11885252B2 (en) | 2010-10-12 | 2024-01-30 | Rtx Corporation | Planetary gear system arrangement with auxiliary oil system |
| US11815001B2 (en) | 2010-10-12 | 2023-11-14 | Rtx Corporation | Planetary gear system arrangement with auxiliary oil system |
| CN108317238B (en) * | 2012-03-23 | 2021-11-09 | 联合工艺公司 | Planetary gear system arrangement with auxiliary oil system |
| CN108317238A (en) * | 2012-03-23 | 2018-07-24 | 联合工艺公司 | Planetary gear system arrangement with auxiliary oil system |
| CN102996757A (en) * | 2012-12-11 | 2013-03-27 | 北京遥测技术研究所 | Double gear backlash structure for staggered teeth regulation spring force |
| CN105378344B (en) * | 2012-12-28 | 2017-12-05 | 吉凯恩粉末冶金工程有限公司 | Separated gear |
| WO2014101996A1 (en) | 2012-12-28 | 2014-07-03 | Gkn Sinter Metals Holding Gmbh | Divided toothed wheel |
| DE102012025210A1 (en) | 2012-12-28 | 2014-07-03 | Gkn Sinter Metals Holding Gmbh | Divided gear |
| DE102012025210B4 (en) * | 2012-12-28 | 2014-08-14 | Gkn Sinter Metals Holding Gmbh | Divided gear |
| CN105378344A (en) * | 2012-12-28 | 2016-03-02 | 吉凯恩粉末冶金工程有限公司 | Divided toothed wheel |
| CN103216604A (en) * | 2013-04-17 | 2013-07-24 | 吴江市菀坪宝得利缝制设备机械厂 | Clearance compensation straight gear |
| CN104121355A (en) * | 2013-04-27 | 2014-10-29 | 北京自动化控制设备研究所 | Gear mechanism capable of eliminating position feedback clearance |
| CN104227699B (en) * | 2013-06-10 | 2016-05-11 | 株式会社安川电机 | Robot |
| CN104227699A (en) * | 2013-06-10 | 2014-12-24 | 株式会社安川电机 | Robot |
| CN103586650A (en) * | 2013-11-29 | 2014-02-19 | 重庆清平机械厂 | Anti-backlash gear machining method |
| CN104179945A (en) * | 2014-07-25 | 2014-12-03 | 上海无线电设备研究所 | Double-gear assembly provided with backlash spring and mounting method thereof |
| CN105333122A (en) * | 2015-11-30 | 2016-02-17 | 哈尔滨科能熔敷科技有限公司 | Double-gear type wiggler with clearance eliminating function |
| CN110645337A (en) * | 2019-10-29 | 2020-01-03 | 北京联恒众达科技中心(有限合伙) | Encoder for eliminating gear pair backlash |
| CN113803411A (en) * | 2021-09-09 | 2021-12-17 | 昆明物理研究所 | Double-piece thin gear staggered tooth gap eliminating mechanism of cam type zoom focusing system of thermal infrared imager |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |