CN103807407A - Tooth engagement transmission part applied to precise mechanical structure - Google Patents
Tooth engagement transmission part applied to precise mechanical structure Download PDFInfo
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- CN103807407A CN103807407A CN201210443447.7A CN201210443447A CN103807407A CN 103807407 A CN103807407 A CN 103807407A CN 201210443447 A CN201210443447 A CN 201210443447A CN 103807407 A CN103807407 A CN 103807407A
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- Prior art keywords
- tooth
- engaging tooth
- engagement driving
- machine construction
- driving parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention provides a tooth engagement transmission part applied to a precise mechanical structure. The tooth engagement transmission part comprises a body (1), wherein the outer edge of at least one part of the body (1) is provided with an engagement tooth group (3) which takes a rotating shaft of the body (1) as a center, has the same radius and is in arc arrangement. The tooth engagement transmission part is characterized in that the body (1) is in a flake shape, engagement teeth (4) are divided into two layers along the axial direction, the two layers of engagement teeth (4) are the same in tooth form and tooth space, and adjacent engagement teeth (4) between the two layers are mutually staggered along the circumferential direction. The tooth engagement transmission part is stable and precise in engagement, continuous and smooth in transmission and convenient to process.
Description
Technical field
The present invention relates to the tooth engagement driving parts on a kind of tooth engagement driving parts, especially door lock, clock and watch that are applied on accurate machine construction.
Background technique
In prior art, tooth engagement driving has in the feature extensive uses such as compact structure, transferring power is large, mechanical efficiency is high, velocity ratio is accurate and all kinds of mechanical transmission because of it.In accurate machine construction, due to the restriction of mechanical yardstick, the shape of the normally thin slice that wherein gear transmission adopts.Three gear drives of for example disclosed a kind of mortise door lock of Chinese patent literature CN201614810U, wherein tiltedly between bolt component and Square lock bolt assembly, be provided with can on Men Nei and door outer handle, put press rotation combination Fang Xin, play the intermediate gear of gearing and the lock core gear that can be stirred by exterior two-part tapered end.Wherein engage with the band tooth driver blade being connected on dead bolt mounting plate respectively by the upper toothed tooth sector of handle or the gear that is connected on lock core, control locking out or retracting of dead bolt.Due to the restriction of thickness, the engaging tooth adopting in accurate machine construction adopts straight-tooth gear teeth system conventionally.For the spur gear of orthodont system; its contact ratio is always less than 2; while engagement near node, generally only have pair of tooth profile to participate in engagement; in addition Nodes is also direction change place; need with contact stress on the low sidely, in transmission, often can spot corrosion occur and lost efficacy; cause transmission not steady, the problem that contact strength is low.And in the time that spur gear is used for door lock or this class precision optical machinery field of mechanisms of clock and watch, not only can there is the jiggly problem of the structural transmission of common mechanical, in addition,, because door lock or clock and watch belong to accurate mechanical structure, its inner space is limited, therefore, each part all arranges smallerly and thin, in the time that intermeshing spur gear arranges thinlyyer, in transmission process, easily occurs bending and deformation, and cause intermeshing two gear shafts of script to staggering, out-of-gear situation.Thereby cause mechanical failure.Such problem has limited further reducing of precision equipment volume.At present, the common solution in affiliated field is to improve the hardness of material by improving material, avoids the axial changing of the relative positions of engaging tooth that produces due to gear body distortion, even if obtained like this effect is still limited.On the other hand, the research and development of material improvement drop into suitable height, cause the cost of product significantly to rise.
Chinese patent literature CN201027912Y discloses a kind of a kind of error connection gear drive being made up of transmission shaft and transmission shaft.See Fig. 1, on pinion drive shaft, be fixed with two identical small gears of gear parameter, on gearwheel transmission shaft, be fixed with two identical gearwheels of gear parameter; Install when fixing, coaxially go up two adjacent gears, 1/2 tooth pitch that along the circumferential direction staggers successively each other, two small gears are meshed with two gearwheels respectively; A pair of gearwheel adopts key to be connected with Large Gear Shaft During; Between a pair of small gear and pinion shaft, both can adopt key to be connected, also can make entirety with axle.The disclosed technological scheme of the prior art has solved in Spur Gear Driving that tooth contact ratio is low, the jiggly problem of transmission effectively.But from the open source literature of the prior art, it remains a technological scheme that is applied to common transmission field.For solving intermeshing two gear shafts that web gear causes because of the intensity reason of gear own to staggering, out-of-gear problem not with respect to.One of ordinary skill in the art, on the basis of the prior art, can not draw and solve the enlightenment of out-of-gear problem between two pitch wheels in web gear transmission.
Summary of the invention
Therefore, technical problem to be solved by this invention is to overcome the web gear for accurate machine construction of the prior art and easily deforms in the time of engagement driving, and produce the out-of-gear problem that mutually axially staggers, thereby provide a kind of stable tooth engagement driving parts for accurate machine construction that engage.
For this reason, the invention provides a kind of tooth engagement driving parts that are applied on accurate machine construction, comprise body, in at least a portion outer rim of described body, form the engaging tooth group that arc is arranged centered by the running shaft of described body, described body is chip shape, described engaging tooth group is axially divided into the two-layer of same radius along described body, and profile of tooth, the tooth pitch of the engaging tooth in two-layer described engaging tooth group are identical, and the adjacent described engaging tooth of interlayer is along the setting of circumferentially mutually staggering.
Described body is circular or fan-shaped, and described engaging tooth is arranged or arranged along described fan-shaped curved edge along the circumferential edges of described circle.
Between the adjacent described engaging tooth of interlayer along circumferentially mutually staggering 1/2nd tooth settings.
Described body by integral forming, two-layer described engaging tooth is moulding respectively on the thickness of described body.
Described body is formed by connecting by adjacent two layers thin slice, and two-layer described engaging tooth is molded over respectively wherein on a plate sheet separately.
Described body is formed by thin slice butt welding described in adjacent two layers.
The tooth engagement driving parts that are applied on accurate machine construction of the present invention have the following advantages:
(1) the tooth engagement driving parts that are applied on accurate machine construction of the present invention, in at least a portion outer rim of its body, form the engaging tooth group take the running shaft of described body as Gear center, described engaging tooth has adjacent two layers, and the setting of mutually staggering of the adjacent engaging tooth of interlayer.Like this between intermeshing a pair of transmission, in the scope of the resiliently deformable of not throwing off from tooth top at engaging tooth, due to the engaging tooth mutually staggering mutual restriction in the axial direction, when the two-layer engaging tooth group engagement driving that makes to interlock, there will not be the out-of-gear problem of the mutual changing of the relative positions.Can greatly reduce like this thickness of body, reduce transmission shared space on thickness.
(2) the tooth engagement driving parts that are applied on accurate machine construction of the present invention, 1/2nd the tooth settings of mutually staggering between described upper strata tooth and described lower floor tooth.Backlash is larger, and transmission is more not steady, and simply the number of teeth increase of plectrum can be strengthened to the difficulty of impact briquetting course of working.Can make tooth intensive by upper strata tooth and lower floor's tooth 1/2nd teeth that stagger, transmission continuously, steadily and don't can increase difficulty of processing.
(3) the tooth engagement driving parts that are applied on accurate machine construction of the present invention, its body is that adjacent two layers thin slice is formed by connecting.After can first processing profile of tooth, be connected to a parts entirety, be convenient to processing, reduce costs.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the error connection gear drive of prior art;
The three-dimensional structure diagram of an embodiment of Fig. 2 tooth engagement driving of the present invention parts;
Fig. 3 shows the transmission structural representation of Fig. 2 illustrated embodiment;
Fig. 4 is the STRUCTURE DECOMPOSITION figure of another embodiment of tooth engagement driving parts of the present invention;
Fig. 5 is the perspective view after the assembling of the engagement driving of tooth shown in Fig. 4 parts.
In figure; 1-body, 1A-the first fan-shaped flake, 1B-the second fan-shaped flake, 2-rotatingshaft, 3-engaging tooth group, 3A-the first engaging tooth group, 3B-the second engaging tooth group, 4-engaging tooth, 4A-the first engaging tooth, 4B-the second engaging tooth, 4C-the 3rd engaging tooth, 4D-the 4th engaging tooth, 5-positioning hole, 6-rotational axis hole.
Embodiment
Referring to Fig. 2, the present embodiment be applied to the tooth engagement driving parts on accurate machine construction, comprise thin rounded flakes body 1, through the rotatingshaft 2 in body 1 center of circle, in the circumferential outer edge of described body 1, form and be divided into vertically two-layer engaging tooth group 3, and profile of tooth, the tooth pitch of the engaging tooth 4 in two-layer described engaging tooth group 3 are identical, and the adjacent described engaging tooth 4 of interlayer is along the setting of circumferentially mutually staggering, and forms thus error connection web gear.
Referring to Fig. 3, show the gear pair being formed by two above-mentioned error connection web gears.In two gears, the engaging tooth 4 on equivalent layer is intermeshing in common mode.And at interlayer, because adjacent described engaging tooth 4 is along the setting of circumferentially mutually staggering, on driving gear first engaging tooth 4A and driven gear, a second engaging tooth 4B in adjacent bed axially reclines mutually like this, stop the described first engaging tooth 4A of driving gear towards the described second engaging tooth 4B direction of driven gear, towards the changing of the relative positions of E direction, and on the adjacent layer of driving gear adjacent with described the first engaging tooth 4A the 3rd adjacent engaging tooth 4C simultaneously with driven gear on a 4th engaging tooth 4D on this layer also mutually axially recline, stop thus the four engaging tooth 4D direction of the 3rd engaging tooth 4C adjacent on driving gear on this layer of driven gear, with the changing of the relative positions of the direction of E opposite direction.Owing to remaining this engagement and the relation that reclines in whole gear rotation process, in the transmission of this gear, effectively avoid so the axial changing of the relative positions between web gear.
Fig. 4 and Fig. 5 have shown another embodiment of tooth engagement driving parts of the present invention.Wherein Fig. 4 has shown the STRUCTURE DECOMPOSITION figure of the present embodiment, and the described body 1 of the engagement driving of tooth described in figure parts is made up of the first fan-shaped flake 1A and the second fan-shaped flake 1B.On the curved edge of two fan- shaped flake 1A, 1B same radius, form respectively the first engaging tooth group 3A and the second engaging tooth group 3B, described the first engaging tooth group 3A is identical with profile of tooth, the tooth pitch of the engaging tooth 4 in described the second engaging tooth group 3B.A rotatingshaft 2 passes the center of circle of described arc, on two fan- shaped flake 1A, 1B, form respectively a positioning hole 5, by the location of rotational axis hole 6 and this positioning hole 5, two fan- shaped flake 1A, 1B are mutually located in the time assembling, at this positioning states, in described the first engaging tooth group 3A and described the second engaging tooth group 3B, adjacent described engaging tooth 4 is along the setting of circumferentially mutually staggering.And under this state, two fan-shaped flakes are welded together.
Adopt two flake structure forms, make to process simple and convenient.Tooth on its each thin slice and hole can adopt a punching press of stamping forming mode to complete, and two thin slices after moulding adopt unified orientation type combination.Grinding tool is unified, machining accuracy is high.
Fig. 5 has shown the state after the present embodiment has been assembled.
Because the working principle of Fig. 4 and the specific embodiment shown in Fig. 5 is identical with the working principle of the embodiment shown in Fig. 2 and Fig. 3, be not repeated at this.
For reach transmission continuously, technique effect stably, in the above-described embodiments, between the adjacent described engaging tooth 4 of interlayer along 1/2nd the tooth settings of circumferentially mutually staggering.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And the apparent variation of being extended out thus or variation are still within protection scope of the present invention.
Claims (6)
1. tooth engagement driving parts that are applied on accurate machine construction, comprise body (1), in at least a portion outer rim of described body (1), form centered by the running shaft of described body (1), the engaging tooth group (3) that arc is arranged, it is characterized in that: described body (1) is chip shape, described engaging tooth group (3) is axially divided into the two-layer of same radius along described body, profile of tooth, the tooth pitch of the engaging tooth (4) in two-layer described engaging tooth group (3) are identical, and the adjacent described engaging tooth of interlayer (4) is along the setting of circumferentially mutually staggering.
2. the tooth engagement driving parts that are applied on accurate machine construction according to claim 1, it is characterized in that: described body (1) is for circular or fan-shaped, and described engaging tooth (4) is arranged or arranged along described fan-shaped curved edge along the circumferential edges of described circle.
3. the tooth engagement driving parts that are applied on accurate machine construction according to claim 1 and 2, is characterized in that: between the adjacent described engaging tooth of interlayer (4) along circumferentially mutually staggering 1/2nd tooth settings.
4. according to the tooth engagement driving parts on accurate machine construction that are applied to described in any one in claim 1-3, it is characterized in that: described body (1) is one-body molded, two-layer described engaging tooth (4) is moulding respectively on the thickness of described body (1).
5. according to the tooth engagement driving parts on accurate machine construction that are applied to described in any one in claim 1-3, it is characterized in that: described body (1) is formed by connecting by adjacent two layers thin slice, two-layer described engaging tooth (4) is molded over respectively wherein on a plate sheet separately.
6. the tooth engagement driving parts that are applied on accurate machine construction according to claim 5, is characterized in that: described body (1) is formed by thin slice butt welding described in adjacent two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443447.7A CN103807407A (en) | 2012-11-08 | 2012-11-08 | Tooth engagement transmission part applied to precise mechanical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443447.7A CN103807407A (en) | 2012-11-08 | 2012-11-08 | Tooth engagement transmission part applied to precise mechanical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103807407A true CN103807407A (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210443447.7A Pending CN103807407A (en) | 2012-11-08 | 2012-11-08 | Tooth engagement transmission part applied to precise mechanical structure |
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| CN (1) | CN103807407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909729A (en) * | 2016-05-23 | 2016-08-31 | 东莞精锐电器五金有限公司 | Multi-gear-set engagement structure and paper shredder |
| CN113048216A (en) * | 2021-04-14 | 2021-06-29 | 井文贵 | Complete circular arc tooth gear |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181433A (en) * | 1990-09-20 | 1993-01-26 | Chiba Dies Co., Ltd. | Gear |
| US6189399B1 (en) * | 1998-01-26 | 2001-02-20 | C. Rob. Hammerstein Gmbh & Co. Kg | Adjustment device for motor vehicle seats |
| CN201027912Y (en) * | 2007-04-28 | 2008-02-27 | 长江大学 | Alternate coupling gear transmission device |
| CN201125999Y (en) * | 2007-12-18 | 2008-10-01 | 陈福建 | Gear |
| CN201502684U (en) * | 2009-08-13 | 2010-06-09 | 中国三江航天工业集团公司特种车辆技术中心 | Duplicate gear |
| CN201614810U (en) * | 2010-01-13 | 2010-10-27 | 谢若鹏 | Three gear transmission mechanism of mortice door lock |
| CN201884606U (en) * | 2010-12-20 | 2011-06-29 | 莱州长和粉末冶金有限公司 | Duplicate gear used in agricultural greenhouse transmission system |
| CN202048111U (en) * | 2011-05-06 | 2011-11-23 | 徐工集团工程机械股份有限公司科技分公司 | Assembly type duplicate gear shaft structure |
| CN202901218U (en) * | 2012-11-08 | 2013-04-24 | 能诚集团有限公司 | Tooth mesh transmission component applied to precision mechanical structure |
-
2012
- 2012-11-08 CN CN201210443447.7A patent/CN103807407A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181433A (en) * | 1990-09-20 | 1993-01-26 | Chiba Dies Co., Ltd. | Gear |
| US6189399B1 (en) * | 1998-01-26 | 2001-02-20 | C. Rob. Hammerstein Gmbh & Co. Kg | Adjustment device for motor vehicle seats |
| CN201027912Y (en) * | 2007-04-28 | 2008-02-27 | 长江大学 | Alternate coupling gear transmission device |
| CN201125999Y (en) * | 2007-12-18 | 2008-10-01 | 陈福建 | Gear |
| CN201502684U (en) * | 2009-08-13 | 2010-06-09 | 中国三江航天工业集团公司特种车辆技术中心 | Duplicate gear |
| CN201614810U (en) * | 2010-01-13 | 2010-10-27 | 谢若鹏 | Three gear transmission mechanism of mortice door lock |
| CN201884606U (en) * | 2010-12-20 | 2011-06-29 | 莱州长和粉末冶金有限公司 | Duplicate gear used in agricultural greenhouse transmission system |
| CN202048111U (en) * | 2011-05-06 | 2011-11-23 | 徐工集团工程机械股份有限公司科技分公司 | Assembly type duplicate gear shaft structure |
| CN202901218U (en) * | 2012-11-08 | 2013-04-24 | 能诚集团有限公司 | Tooth mesh transmission component applied to precision mechanical structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909729A (en) * | 2016-05-23 | 2016-08-31 | 东莞精锐电器五金有限公司 | Multi-gear-set engagement structure and paper shredder |
| CN105909729B (en) * | 2016-05-23 | 2019-02-12 | 东莞精锐电器五金有限公司 | Multi-gear group engaging structure and shredder |
| CN113048216A (en) * | 2021-04-14 | 2021-06-29 | 井文贵 | Complete circular arc tooth gear |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20151209 Address after: 9 No. 321300 Zhejiang province Yongkang City Hardware Technology Industrial Park, Park Avenue South Applicant after: WANGLI SECURITY PRODUCT CO., LTD. Address before: 321300, No. 888, Jin Du Road, Yongkang Economic Development Zone, Jinhua, Zhejiang Applicant before: Nengcheng Group Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140521 |
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| RJ01 | Rejection of invention patent application after publication |