CN217463076U - One-level hyperbolic small-tooth-difference speed reducer - Google Patents
One-level hyperbolic small-tooth-difference speed reducer Download PDFInfo
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- CN217463076U CN217463076U CN202220218305.XU CN202220218305U CN217463076U CN 217463076 U CN217463076 U CN 217463076U CN 202220218305 U CN202220218305 U CN 202220218305U CN 217463076 U CN217463076 U CN 217463076U
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Abstract
The utility model discloses a few poor reduction gears of one-level hyperbolic, include: the input shaft and the input gear are fixedly connected with the input end shaft; further comprising: the input end cover is provided with four counter bores for stringing nuts at the input end; the transmission shaft is provided with two crankshaft gears, and the two transmission shafts are fixedly installed with the shell through a first bearing; the center hole of the driving outer gear with less tooth difference is connected with an eccentric sleeve in a sliding fit manner, and a positioning column is arranged in the axial direction; and a positioning column is arranged at one end of the inner gear output shaft, the eccentric sleeve and the outer gear, and a second bearing is sleeved outside the positioning column. According to the first-stage hyperbolic small-tooth-difference speed reducer, the rotation of the input shaft is firstly subjected to branch two crankshaft transmission for speed reduction, and only output revolution is carried out, so that a structure that a shaft pin or a gear coupling structure is used for limiting the rotation of a driving gear is omitted, and the mechanism is more stable; a balance block is arranged on the weightless side of the eccentric sleeve, so that the centrifugal force caused by operation can be eliminated, and the operation balance is achieved.
Description
Technical Field
The utility model relates to a reduction gear specifically is a few tooth difference reduction gear of one-level hyperbolic.
Background
The multi-stage dead axle gear reducer and the multi-stage planetary reducer which are used at present have large radial and axial sizes due to a plurality of transmission chains. In addition, the small-tooth-difference speed reducer using the two eccentric wheels for balancing not only increases the axial size and the cost due to the addition of one driving gear, but also greatly reduces the transmission efficiency. In addition, the single-curve structure needs to be additionally provided with a shaft pin structure or a gear coupling structure for limiting the rotation of the driving gear, so that the operation is stable and influenced. In order to solve the problems, innovative design is urgently needed on the basis of the original speed reducer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a few tooth difference reduction gears of one-level hyperbolic to propose the reduction gear drive chain that uses at present many, with high costs, the unstable problem of operation in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a one-level hyperbolic small-tooth-difference speed reducer comprises: the input shaft and the input gear are fixedly connected with the input end shaft;
further comprising: the input end cover is provided with four counter bores for stringing nuts at the input end;
the transmission shaft is provided with two crankshaft gears, the input gear is meshed with the crankshaft gears, and the two transmission shafts are fixedly installed with the shell through a first bearing;
the central hole of the external driving gear with less tooth difference is connected with an eccentric sleeve in a sliding fit manner, and a positioning column is arranged in the axial direction;
the inner gear output shaft is integrally designed by the inner gear and the output shaft, one end of the eccentric sleeve and one end of the outer gear are provided with positioning columns, and a bearing II is sleeved outside the positioning columns.
Preferably, the input end cover is fixedly installed on the shell through screws.
Preferably, the input end cover is fixedly installed with a motor or other input sources.
Preferably, the balance weight and the eccentric sleeve are mounted at the other end of the transmission shaft and are limited to rotate mutually by the tight fit of the hole with the cut edge and the shaft.
Preferably, the third bearing is sleeved on the output shaft of the internal gear, the third bearing is provided with an output end cover, and the output shaft of the internal gear is radially and axially fixed with the output end cover through the third bearing.
Preferably, the output end cover is clamped with the gear housing.
Compared with the prior art, the beneficial effects of the utility model are that: the one-level hyperbolic small-tooth-difference speed reducer can run in balance and reduce a transmission chain at the same time, and the specific contents are as follows: the rotation of the input shaft is firstly transmitted by two branched crankshafts to reduce the speed, the two crankshafts limit the rotation of the speed reduction driving gear with small tooth difference and only output revolution, so that a structure of limiting the rotation of the driving gear by using a shaft pin or a gear coupling structure is omitted, and the mechanism is more stable;
when the driving gear rotates eccentrically, a balance block is arranged on the weightless side of the eccentric sleeve, so that the centrifugal force caused by operation can be eliminated, and the operation balance is achieved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a right side view of the present invention;
in the figure: 1. an input shaft; 2. an input end cap; 3. an input gear; 4. a crankshaft gear; 5. a drive shaft; 6. a first bearing; 7. a housing; 8. a counterbalance; 9. an eccentric sleeve; 10. an outer gear; 11. an internal gear output shaft; 12. a second bearing; 13. a third bearing; 14. a positioning column; 15. an output end cover; 16. and (4) a screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a first-stage hyperbolic small-tooth-difference speed reducer comprises an input shaft 1 and an input gear 3, wherein the input shaft 1 and the input gear 3 are fixedly connected with an input end shaft;
further comprising: the input end cover 2 is provided with four counter bores for stringing nuts at the input end, the input end cover 2 is fixedly installed with a motor or other input sources through the nuts, and the input end cover 2 is fixedly installed on the shell 7 through screws 16;
the transmission shaft 5 is provided with two crankshaft gears 4, the input gear 3 is meshed with the crankshaft gears 4, the rotation on the input shaft 1 is transmitted to the two transmission shafts 5, the two transmission shafts 5 are arranged on a shell 7 through a bearing I6, the other ends of the two transmission shafts 5 are provided with a balance block 8 and an eccentric sleeve 9, and the balance block and the eccentric sleeve are tightly matched with each other through a hole with a trimming edge and the shaft to limit the mutual rotation;
the external gear 10, the centre hole of the driving external gear 10 with less tooth difference is connected with the eccentric sleeve 9 in a sliding fit manner, and a positioning column 14 is arranged in the axial direction for limiting, when the input shaft 1 transmits power to the transmission shaft 5 through a gear to drive the eccentric sleeve 9 to synchronously rotate, the center of the external gear 10 can rotate around the center, the external gear 10 is meshed with the internal teeth of the internal gear output shaft 11, the internal gear and the output shaft are integrally designed, the rotation is directly transmitted to the internal gear output shaft 11 by the speed of the relative motion of the external gear 10 around the internal gear, so that the purpose of reducing the speed with less tooth difference is achieved, in order to prevent the axial motion of the eccentric sleeve 9 and the external gear 10, the positioning column 14 is additionally arranged at one end of the external gear 10 for axial limitation, a second bearing 12 is sleeved outside the positioning column 14, and the second bearing 12 is used for axial limitation of the positioning column 14;
the third bearing 13 is sleeved on the third internal gear output shaft 11, the third bearing 13 is provided with an output end cover 15, the third internal gear output shaft 11 is fixed with the output end cover 15 in the radial direction and the axial direction through the third bearing 13, and the output end cover 15 is clamped with the gear shell 7.
The working principle is as follows: the rotation of the input shaft 1 is firstly transmitted by two branched crankshafts to reduce the speed, the two crankshafts limit the rotation of the speed reduction driving gear with small tooth difference and only output revolution, and a structure that the rotation of the driving gear is limited by a shaft pin or a gear coupling structure is omitted, so that the mechanism is more stable;
when the driving gear rotates eccentrically, a balance block 8 is arranged on the weightless side of the eccentric sleeve 9, so that the centrifugal force caused by operation can be eliminated, and the operation balance is achieved;
in the small tooth difference structure, the driving gear may be an external gear 10, and the driven gear may be an internal gear, or the driving gear may be an internal gear, and the driven gear may be an external gear 10.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A one-level hyperbolic small-tooth-difference speed reducer is characterized by comprising: the input shaft and the input gear are fixedly connected with the input end shaft;
further comprising: the input end cover is provided with four counter bores for stringing nuts at the input end;
the transmission shaft is provided with two crankshaft gears, the input gear is meshed with the crankshaft gears, and the two transmission shafts are fixedly mounted with the shell through a first bearing;
the center hole of the driving outer gear with less tooth difference is connected with an eccentric sleeve in a sliding fit manner, and a positioning column is arranged in the axial direction;
the inner gear output shaft is integrally designed by the inner gear and the output shaft, one end of the eccentric sleeve and one end of the outer gear are provided with positioning columns, and a bearing II is sleeved outside the positioning columns.
2. The one-stage hyperbolic small-tooth-difference speed reducer according to claim 1, characterized in that: the input end cover is fixedly installed on the shell through screws.
3. The one-stage hyperbolic small-tooth-difference speed reducer according to claim 1, characterized in that: the input end cover is fixedly installed with the motor.
4. The one-stage hyperbolic small-tooth-difference speed reducer according to claim 1, characterized in that: the other end of the transmission shaft is provided with a balance block and an eccentric sleeve, and the balance block and the eccentric sleeve are tightly matched with each other through a hole with a trimming edge and the shaft to limit mutual rotation.
5. The one-stage hyperbolic small-tooth-difference speed reducer according to claim 1, characterized in that: and the third bearing is sleeved on the output shaft of the internal gear, an output end cover is installed on the third bearing, and the output shaft of the internal gear is radially and axially fixed with the output end cover through the third bearing.
6. The one-stage hyperbolic small-tooth-difference speed reducer according to claim 5, characterized in that: the output end cover is clamped with the gear shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220218305.XU CN217463076U (en) | 2022-01-26 | 2022-01-26 | One-level hyperbolic small-tooth-difference speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220218305.XU CN217463076U (en) | 2022-01-26 | 2022-01-26 | One-level hyperbolic small-tooth-difference speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN217463076U true CN217463076U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220218305.XU Active CN217463076U (en) | 2022-01-26 | 2022-01-26 | One-level hyperbolic small-tooth-difference speed reducer |
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| CN (1) | CN217463076U (en) |
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2022
- 2022-01-26 CN CN202220218305.XU patent/CN217463076U/en active Active
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