CN214999218U - Transmission gear set and speed reducer - Google Patents
Transmission gear set and speed reducer Download PDFInfo
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- CN214999218U CN214999218U CN202120660089.XU CN202120660089U CN214999218U CN 214999218 U CN214999218 U CN 214999218U CN 202120660089 U CN202120660089 U CN 202120660089U CN 214999218 U CN214999218 U CN 214999218U
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Abstract
The invention relates to the technical field of gears, in particular to a transmission gear set and a speed reducer, which comprise a driving gear and a driven gear, or comprise an external gear and an internal gear, wherein the external gear and the internal gear are respectively a first gear and a second gear, the first gear is provided with a plurality of first teeth, the second gear is provided with a plurality of second teeth, the first teeth and the second teeth are meshed and can complete rotation, the outer peripheries of the first gear and the second gear are in tooth profiles, and the first teeth and the second teeth are respectively provided with reference circles; the tooth profile on the outer side of the reference circle of the first gear is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are first cosine curves, the tooth profile on the inner side of the reference circle of the first gear is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are second cosine curves, and the height of the second cosine curves is 1.05-1.15 times of the height of the first cosine curves. Such drive gear group has the transmission efficiency height, the steady advantage of transmission power.
Description
Technical Field
The invention relates to the technical field of gears, in particular to a transmission gear set and a speed reducer.
Background
The transmission gear set comprises a driving gear and a driven gear or comprises an external gear and an internal gear which are respectively a first gear and a second gear, the first gear is provided with a plurality of first teeth, the second gear is provided with a plurality of second teeth, the first teeth and the second teeth are meshed to complete the rotation of the driving gear and the driven gear, and the outer peripheries of the first teeth and the second teeth are in tooth profiles.
The shapes of the gear tooth profiles are various, for example, the gear tooth profiles are provided with a plurality of arc sections and involute curves, but the gear tooth profiles have the defects of unsmooth transmission, higher vibration noise, low efficiency, short service life and the like.
Disclosure of Invention
The invention aims to provide a transmission gear set and a speed reducer which have the advantages of stable transmission, small vibration noise, high efficiency and long service life.
The technical scheme of the transmission gear set is realized in such a way that the transmission gear set comprises a driving gear and a driven gear, or comprises an external gear and an internal gear which are respectively a first gear and a second gear, wherein the first gear is provided with a plurality of first teeth, the second gear is provided with a plurality of second teeth, the first teeth and the second teeth are meshed and can complete rotation, the outer peripheries of the first teeth and the second teeth are in tooth profiles, and the first teeth and the second teeth are respectively provided with reference circles; the method is characterized in that: the tooth profile on the outer side of the reference circle of the first tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are first cosine curves, the tooth profile on the inner side of the reference circle of the first tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are second cosine curves, and the height of the second cosine curves is 1.05-1.15 times of the height of the first cosine curves.
Further, the height of the second cosine curve is 1.10 times of the height of the first cosine curve.
Furthermore, the tooth profile on the outer side of the reference circle of the second tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, the tooth profile is a third cosine curve, the tooth profile on the inner side of the reference circle of the second tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, the tooth profile is a fourth cosine curve, and the height of the fourth cosine curve is 1.05-1.15 times of that of the third cosine curve.
Further, the height of the fourth cosine curve is 1.10 times of the height of the third cosine curve.
Furthermore, the outer end of the first cosine curve is also provided with a minor arc section which is a first minor arc section 9.
Further, the height of the first minor arc section accounts for 1/4-1/5 of the height of the outer profile of the first tooth pitch circle.
Furthermore, the outer end of the second cosine curve is also provided with a minor arc section which is a second minor arc section 10.
Further, the height of the second minor arc section accounts for 1/4-1/5 of the height of the outer tooth profile of the second pitch circle.
The technical scheme of the speed reducer is realized as follows: the reducer comprises a reducer body, wherein the reducer body comprises a driving gear and a driven gear or an external gear and an internal gear which are respectively a first gear and a second gear, the first gear and the second gear form a transmission gear set, the first gear is provided with a plurality of first teeth, the second gear is provided with a plurality of second teeth, the first teeth and the second teeth are meshed and can complete rotation, the outer peripheries of the first teeth and the second teeth are in tooth profiles, and the first teeth and the second teeth are respectively provided with reference circles; the method is characterized in that: the transmission gear set is of the structure.
The transmission gear set and the speed reducer provided by the invention have the beneficial effects that: has the advantages of smoother operation and lower noise.
Drawings
Fig. 1 is a schematic view of a drive gear set according to the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic view of the tooth profile of the first gear.
Fig. 4 is a schematic view of the tooth profile structure of the second gear.
Fig. 5 is a schematic diagram of the tooth profile structure of the first gear (only the first cosine curve and the second cosine curve are shown).
Wherein: 1. the gear comprises a first gear 2, a second gear 3, a first tooth 4, a second tooth 5, a first cosine curve 6, a second cosine curve 7, a third cosine curve 8, a fourth cosine curve 9, a first minor arc section 10 and a second minor arc section.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in fig. 1, 2, 3 and 4, the transmission gear set comprises a driving gear and a driven gear, or comprises an external gear and an internal gear, which are a first gear 1 and a second gear 2, respectively, the first gear has a plurality of first teeth 3, the second gear has a plurality of second teeth 4, the first teeth and the second teeth can be meshed and can complete rotation, the outer peripheries of the first teeth and the second teeth are in the shape of tooth profiles, and the first teeth and the second teeth have reference circles, respectively; the method is characterized in that: the tooth profile outside the reference circle of the first tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth, and the cosine curve is a first cosine curve 5, namely, the abc section in fig. 3 is a first cosine curve; the tooth profile of the inner side of the reference circle of the first tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth, and the curve is a second cosine curve 6, namely the cde section in fig. 3 is a second cosine curve; the height H1 of the second cosine curve is 1.05-1.15 times of the height H1 of the first cosine curve.
The using method comprises the following steps: the method of use of such a drive gear set is the same as in the prior art.
Preferably, the height of the second cosine curve is 1.10 times the height of the first cosine curve.
Multiple experiments prove that the design has the advantages of noise reduction and better smooth operation effect.
Preferably, the tooth profile outside the reference circle of the second tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, and the curve is a third cosine curve 7, namely the ijk section in fig. 4 is a third cosine curve; the tooth profile on the inner side of the reference circle of the second tooth is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, and the curve is a fourth cosine curve 8, namely the klm section in fig. 4 is a fourth cosine curve; the height H2 of the fourth cosine curve is 1.05-1.15 times of the height H2 of the third cosine curve.
Preferably, the height of the fourth cosine curve is 1.10 times the height of the third cosine curve.
Multiple experiments prove that the design has the advantages of noise reduction and better smooth operation effect.
Furthermore, the outer end of the first cosine curve is also provided with a minor arc section which is a first minor arc section 9.
Further, the height of the first minor arc section accounts for 1/4-1/5 of the height of the outer profile of the first tooth pitch circle.
Preferably, the first minor segment has a height 2/9 corresponding to the first tooth reference circle outer profile height.
Furthermore, the outer end of the second cosine curve is also provided with a minor arc section which is a second minor arc section 10.
Further, the height of the second minor arc section accounts for 1/4-1/5 of the height of the outer tooth profile of the second pitch circle.
Preferably, the height of the second minor segment occupies 2/9 of the height of the second pitch circle outer profile.
A speed reducer: the reducer comprises a reducer body, wherein the reducer body comprises a driving gear and a driven gear or an external gear and an internal gear which are respectively a first gear and a second gear, the first gear and the second gear form a transmission gear set, the first gear is provided with a plurality of first teeth, the second gear is provided with a plurality of second teeth, the first teeth and the second teeth are meshed and can complete rotation, the outer peripheries of the first teeth and the second teeth are in tooth profiles, and the first teeth and the second teeth are respectively provided with reference circles; the method is characterized in that: the transmission gear set is of the structure.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any person skilled in the art can make many changes or modifications to the equivalent embodiments without departing from the scope of the present invention.
Claims (7)
1. A drive gear set including a drive gear and a driven gear, or including an external gear and an internal gear, which are a first gear and a second gear, respectively, the first gear having a plurality of first teeth, the second gear having a plurality of second teeth, the first teeth and the second teeth being engaged and being capable of rotating, the first teeth and the second teeth having outer peripheries shaped as tooth profiles, the first teeth and the second teeth having reference circles, respectively; the method is characterized in that: the tooth profile on the outer side of the reference circle of the first gear is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are first cosine curves, the tooth profile on the inner side of the reference circle of the first gear is a cosine curve, two sides of the cosine curve are matched with two sides of the first tooth and are second cosine curves, and the height of the second cosine curves is 1.05-1.15 times of the height of the first cosine curves.
2. The drive gear set of claim 1, wherein: the tooth profile on the outer side of the reference circle of the second gear is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, the tooth profile on the inner side of the reference circle of the second gear is a cosine curve, two sides of the cosine curve are matched with two sides of the second tooth, the tooth profile is a fourth cosine curve, and the height of the fourth cosine curve is 1.05-1.15 times of that of the third cosine curve.
3. The drive gear set according to claim 1 or 2, wherein: the outer end of the first cosine curve is also provided with a minor arc section which is a first minor arc section.
4. A drive gear set according to claim 3 wherein: the height of the first minor arc section accounts for 1/4-1/5 of the height of the outer tooth profile of the first tooth reference circle.
5. The drive gear set of claim 4, wherein: the outer end of the second cosine curve is also provided with a minor arc section which is a second minor arc section.
6. The drive gear set of claim 5, wherein: the height of the second minor arc section accounts for 1/4-1/5 of the height of the outer tooth profile of the second tooth pitch circle.
7. A reducer including a reducer body including a driving gear and a driven gear, or an external gear and an internal gear, which are a first gear and a second gear, respectively, the first gear and the second gear forming a transmission gear set, the first gear having a plurality of first teeth, the second gear having a plurality of second teeth, the first teeth and the second teeth being engaged and being capable of rotating, the first gear and the second gear having outer circumferences in which the first teeth and the second teeth have respective reference circles; the method is characterized in that: the drive gear set is as claimed in any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120660089.XU CN214999218U (en) | 2021-04-01 | 2021-04-01 | Transmission gear set and speed reducer |
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| CN202120660089.XU CN214999218U (en) | 2021-04-01 | 2021-04-01 | Transmission gear set and speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943892A (en) * | 2021-04-01 | 2021-06-11 | 河南睿辰机器人智能科技有限公司 | Transmission gear set and speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943892A (en) * | 2021-04-01 | 2021-06-11 | 河南睿辰机器人智能科技有限公司 | Transmission gear set and speed reducer |
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Effective date of registration: 20230821 Address after: Building D7, 5G Innovation Application Industrial Park, Urban Rural Integration Demonstration Zone, Xuchang City, Henan Province, 461000 Patentee after: Xuchang Ruizhi Robot Technology Co.,Ltd. Address before: Room 301, 3rd floor, No.4 factory building, Xuchang wisdom Information Industrial Park (phase I), east of Weiwu Avenue and north of Mingli street, Xuchang City, Henan Province Patentee before: HENAN RUICHEN ROBOT INTELLIGENT TECHNOLOGY Co.,Ltd. |