CN220016038U - Uniform load planetary gear speed reducer - Google Patents
Uniform load planetary gear speed reducer Download PDFInfo
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- CN220016038U CN220016038U CN202320392648.2U CN202320392648U CN220016038U CN 220016038 U CN220016038 U CN 220016038U CN 202320392648 U CN202320392648 U CN 202320392648U CN 220016038 U CN220016038 U CN 220016038U
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 241000270281 Coluber constrictor Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- OQZCSNDVOWYALR-UHFFFAOYSA-N flurochloridone Chemical compound FC(F)(F)C1=CC=CC(N2C(C(Cl)C(CCl)C2)=O)=C1 OQZCSNDVOWYALR-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a uniform load planetary gear speed reducer which comprises a shell, a uniform load planetary gear mechanism, a double-side plate arm type planetary carrier mechanism, a flange plate and a ball cage type universal joint, wherein power provided by a flange plate driving part is input to a drum-shaped tooth coupler in a torque mode, the drum-shaped tooth coupler can transmit the torque to a sun gear, the sun gear rotates to drive a planetary gear set to rotate, an inner gear ring cannot rotate along with the rotation of the planetary gear set, the planetary gear set can drive the double-side plate arm type planetary carrier mechanism to rotate, the double-side plate arm type planetary carrier mechanism can drive a ball cage type universal joint to rotate together, so that the power of a motor is reduced and increased to be output to a transmission shaft, and the uniform load planetary gear mechanism can uniformly distribute meshing acting force of the planetary gear set, so that the output is more stable and the transmission efficiency is higher.
Description
Technical Field
The utility model relates to the field of vehicle accessories, in particular to a uniform load planetary gear speed reducer.
Background
The formula automobile racing for universities in China is an automobile design and manufacturing race attended by students in the universities in automobile engineering or automobile related professions in the universities, and has been held until the twelfth year. Formula racer requires a compact structure, and a planetary gear reducer is widely used as an important component for reducing the rotation speed, increasing the torque and reducing the load moment of inertia in a mechanical power transmission system because of many advantages such as compact structure, high specific power and high transmission efficiency. The introduction of foreign planetary gear transmission technology has further been known, and various mechanical load balancing mechanisms, such as radial freedom degrees of basic components, other automatic positioning methods and the like, are adopted, so that the planetary gear transmission technology is gradually developed and widely applied. The uniform load distribution among the planetary gears means that the meshing acting forces transmitted to each planetary gear by the central gear are equal in magnitude, but often the load distribution among the planetary gears is uneven due to the influences of unavoidable manufacturing and installation errors, component deformation and other factors, even abnormal working conditions occur that the load is possibly concentrated on one planetary gear at any time, and other planetary gears cannot transmit power.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the uniform load planetary gear speed reducer which has high efficiency, uniform load distribution and stable output.
An even-load planetary gear reduction device according to an embodiment of the first aspect of the present utility model includes
A housing;
the uniform load planetary gear mechanism comprises a planetary gear set, a sun gear, an annular gear and a crowned tooth type coupler, wherein the annular gear is fixed on the shell, the planetary gear set and the sun gear are arranged in the annular gear, the planetary gear set is arranged around the sun gear, the planetary gear set is meshed with the sun gear for transmission, and the planetary gear set is meshed with the annular gear for transmission;
the double-side plate arm type planetary carrier mechanism is arranged at two sides of the planetary gear set and is fixedly connected with the planetary gear set;
the flange plate is used for being connected with the driving part;
the ball cage type universal joint is connected with the double-side-plate-arm type planet carrier mechanism through a spline;
the two ends of the crowned tooth type coupler are respectively provided with a crowned gear, and the crowned gears are respectively connected with the sun gear and the flange in a meshed manner.
According to the embodiment of the first aspect of the utility model, the uniform load planetary gear speed reducer has at least the following beneficial effects: the utility model relates to a uniform load planetary gear speed reducing device, which comprises a shell, a uniform load planetary gear mechanism, a double-side plate arm type planetary carrier mechanism, a flange plate and a ball cage type universal joint, wherein power provided by a flange plate driving part is input to a drum-shaped tooth coupler in a torque mode, the drum-shaped tooth coupler can transmit the torque to a sun gear, the sun gear rotates to drive a planetary gear set to rotate, an inner gear ring cannot rotate along with the rotation of the planetary gear set, the rotation of the planetary gear set can drive the double-side plate arm type planetary carrier mechanism to rotate, the double-side plate arm type planetary carrier mechanism can drive the ball cage type universal joint to rotate together, so that the power of a motor is output to a transmission shaft after being reduced and increased, and the uniform load planetary gear mechanism can uniformly distribute meshing acting force of the planetary gear set, so that the output is more stable and the transmission efficiency is higher.
According to some embodiments of the utility model, the double-sided-arm-type planetary carrier mechanism comprises an outer planetary carrier, an inner planetary carrier and a supporting shaft, wherein the outer planetary carrier and the inner planetary carrier are respectively arranged at two sides of the planetary gear set, and two ends of the supporting shaft are respectively connected with the outer planetary carrier and the inner planetary carrier.
According to some embodiments of the utility model, the planetary gear set comprises a planet wheel and a needle bearing, the planet wheel comprises a gear and a gear shaft which are integrally arranged, the outer planet carrier and the inner planet carrier are provided with wheel shaft holes matched with the gear shaft, the planet wheel is connected with the outer planet carrier and the inner planet carrier through the gear shaft, and the needle bearing is arranged between the gear shaft and the wheel shaft holes.
According to some embodiments of the utility model, the planetary gearset further comprises a shim disposed between the planet wheel and the double-sided planet-arm carrier mechanism.
According to some embodiments of the utility model, the number of the planetary gears and the supporting shafts is three, and the distances between two adjacent planetary gears and the supporting shafts are equal.
According to some embodiments of the utility model, an end cap for sealing is further disposed within the flange.
According to some embodiments of the utility model, the housing comprises an outer housing and an inner housing, the outer housing and the inner housing being provided with a seal groove, a radial shaft seal ring being provided within the seal groove.
According to some embodiments of the utility model, a deep groove ball bearing is disposed between the housing and the double-sided plate arm planet carrier mechanism.
According to some embodiments of the utility model, the crowned teeth coupling further comprises a spline shaft and snap springs for the shaft, two crowned gears are in internal spline fit with the spline shaft through the snap springs for the shaft, and the number of the snap springs for the shaft is four.
According to some embodiments of the utility model, the outer housing has relief valve bolt holes and drain bolt holes.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is an exploded view of a uniform load planetary gear reduction device according to an embodiment of the present utility model;
FIG. 2 is an exploded schematic view of the uniform load planetary gear mechanism and the double-sided arm-type planetary carrier mechanism shown in FIG. 1;
FIG. 3 is a cross-sectional view of the uniform load planetary gear reducer shown in FIG. 1;
FIG. 4 is a schematic view of the sun gear shown in FIG. 1;
fig. 5 is a schematic view of the crowned tooth coupling shown in fig. 1.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, inner, outer, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, mounting, connection, assembly, cooperation, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
A uniform load planetary gear reduction device according to an embodiment of the present utility model is described below with reference to fig. 1 to 5.
The utility model relates to a uniform load planetary gear speed reducer, which is shown in fig. 1 to 5, and comprises a shell 1, a uniform load planetary gear mechanism 2, a double-side-plate arm type planetary carrier mechanism 3, a flange plate 42 and a ball cage type universal joint 41, wherein the uniform load planetary gear mechanism 2 comprises a planetary gear set 21, a sun gear 22, an annular gear 23 and a drum-shaped tooth coupler 24, the annular gear 23 is fixed on the shell 1, the planetary gear set 21 and the sun gear 22 are arranged in the annular gear 23, a planetary gear 211 gear set is arranged around the sun gear 22, the planetary gear 211 gear set is meshed with the sun gear 22 for transmission, and the planetary gear 211 gear set is meshed with the annular gear 23 for transmission; the double-side plate arm type planetary carrier mechanism 3 is arranged at two sides of the planetary gear set 21, and the double-side plate arm type planetary carrier mechanism 3 is fixedly connected with the planetary gear set 21; the flange 42 is used for connecting with the driving part; the ball cage type universal joint 41 is connected with the double-side plate arm type planet carrier mechanism 3 through a spline; the crowned gears 241 are respectively arranged at two ends of the crowned teeth type coupling 24, and the crowned gears 241 are respectively connected with the sun gear 22 and the flange plate 42 in a meshed manner. The flange 42 is used for being connected with a driving part, two ends of the crowned tooth type coupler 24 are respectively provided with a crowned gear 241, the crowned gears 241 are respectively meshed and connected with the sun gear 22 and the flange 42, power provided by the driving part of the flange 42 is input to the crowned tooth type coupler 24 in a torque mode, the crowned tooth type coupler 24 can transmit the torque to the sun gear 22, the sun gear 22 rotates to drive the planetary gear set 21 to rotate, the inner gear ring 23 cannot rotate along with the rotation of the planetary gear set 21, the rotation of the planetary gear set 21 can drive the double-side-plate arm type planetary carrier mechanism 3 to rotate, the double-side-plate arm type planetary carrier mechanism 3 can drive the ball cage type universal joint 41 to rotate together, so that the power of a motor is output to a transmission shaft after being decelerated and moment-increased, and the meshing force of the planetary gear set 21 can be evenly distributed by the uniform-load planetary gear mechanism 2, so that the output is stable and the transmission efficiency is higher.
According to some embodiments of the present utility model, the double-sided-plate arm-type carrier mechanism 3 includes an outer carrier 31, an inner carrier 32, and a support shaft 33, the outer carrier 31 and the inner carrier 32 being provided on both sides of the planetary gear set 21, respectively, and both ends of the support shaft 33 being connected to the outer carrier 31 and the inner carrier 32, respectively. The double-side-plate arm type planetary carrier mechanism 3 comprises an outer planetary carrier 31, an inner planetary carrier 32 and a supporting shaft 33, wherein two ends of the supporting shaft 33 are respectively connected with the outer planetary carrier 31 and the inner planetary carrier 32, and the outer planetary carrier 31 and the inner planetary carrier 32 are connected and fixed, so that the double-side-plate arm type planetary carrier mechanism 3 has enough strength and rigidity. The outer planet carrier 31 and the inner planet carrier 32 are respectively arranged on two sides of the planetary gear set 21, the outer planet carrier 31 is circumferentially fixed on the ball cage type universal joint 41 through an inner spline, the ball cage type universal joint 41 is fixed on the outer planet carrier 31 through the snap springs 25 for shafts, the inner planet carrier 32 is connected to the flange 42 and the inner planet carrier 32 externally and is connected to the shell 1, the rotation of the planetary gear set 21 can drive the double-side plate arm type planet carrier mechanism 3 to rotate, the double-side plate arm type planet carrier mechanism 3 can drive the ball cage type universal joint 41 to rotate together, and accordingly power of a motor is output to a transmission shaft after being subjected to speed reduction and torque increase, and accordingly output is stable and transmission efficiency is high.
According to some embodiments of the present utility model, the planetary gear set 21 includes a planetary gear 211 and a needle bearing 213, the planetary gear 211 includes a gear and a gear shaft integrally provided, the outer and inner carriers 31 and 32 are provided with a gear shaft hole to be fitted with the gear shaft, the planetary gear 211 is connected with the outer and inner carriers 31 and 32 through the gear shaft, and the needle bearing 213 is provided between the gear shaft and the gear shaft hole. Specifically, according to some embodiments of the present utility model, the number of the planetary gears 211 and the support shafts 33 is three, and the distances between the adjacent two planetary gears 211 and the support shafts 33 are equal.
According to some embodiments of the utility model, the planetary gear set 211 further comprises a spacer 212, the spacer 212 being arranged between the planetary gear 211 and the double-sided-arm-type planetary carrier mechanism 3. The gasket 212 is arranged between the planet wheel 211 and the double-sided arm type planet carrier mechanism 3, so that friction generated when the planet wheel 211 and the double-sided arm type planet carrier mechanism 3 rotate relatively can be reduced, and the output is stable and the transmission efficiency is high.
An end cap 43 for sealing is also provided within the flange 42 according to some embodiments of the present utility model. An end cover 43 is provided in the flange 42, and the end cover 43 is provided to seal the joint between the flange 42 and the driving member, thereby protecting the interior of the reduction gear.
According to some embodiments of the utility model, the housing 1 comprises an outer housing 11 and an inner housing 12, the outer housing 11 and the inner housing 12 being provided with sealing grooves in which radial shaft sealing rings 13 are provided. The casing 1 comprises an outer casing 11 and an inner casing 12, wherein the outer casing 11 and the inner casing 12 are provided with sealing grooves, radial shaft sealing rings 13 are arranged in the sealing grooves, and the radial shaft sealing rings 13 are arranged in the sealing grooves of the outer casing 11 and the inner casing 12 and play a role in sealing the whole planetary gear speed reducer.
According to some embodiments of the utility model, a deep groove ball bearing 14 is provided between the housing 1 and the double-sided arm-type planet carrier mechanism 3. The deep groove ball bearing 14 is arranged between the shell 1 and the double-side plate arm type planetary carrier mechanism 3, the deep groove ball bearing 14 is connected with the shell 1 and the double-side plate arm type planetary carrier mechanism 3, and the deep groove ball bearing 14 enables the shell 1 and the double-side plate arm type planetary carrier mechanism 3 to rotate relatively while being fixed.
According to some embodiments of the present utility model, the crowned tooth coupling 24 further includes a spline shaft 242 and a shaft snap spring 25, and two crowned gears 241 are in spline fit with the spline shaft 242 through the shaft snap spring 25, and the number of the shaft snap springs 25 is four.
According to some embodiments of the present utility model, the outer housing 11 has relief valve bolt holes 111 and drain bolt holes 112. The relief valve bolt hole 111 is located at the upper portion of the outer case 11, and can balance the internal and external air pressures of the device. The oil drain bolt hole 112 is located in the lower part of the outer shell 11 and is used for discharging lubricating oil in the device, so that oil change and maintenance can be timely and conveniently carried out on a vehicle, the interior of the speed reducer can be fully lubricated, friction damage of parts and noise generated during operation of the device are reduced, and the performance of the speed reducer is better exerted.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A uniform load planetary gear reduction device, comprising:
a housing;
the uniform load planetary gear mechanism comprises a planetary gear set, a sun gear, an annular gear and a crowned tooth type coupler, wherein the annular gear is fixed on the shell, the planetary gear set and the sun gear are arranged in the annular gear, the planetary gear set is arranged around the sun gear, the planetary gear set is meshed with the sun gear for transmission, and the planetary gear set is meshed with the annular gear for transmission;
the double-side plate arm type planetary carrier mechanism is arranged at two sides of the planetary gear set and is fixedly connected with the planetary gear set;
the flange plate is used for being connected with the driving part;
the ball cage type universal joint is connected with the double-side-plate-arm type planet carrier mechanism through a spline;
the two ends of the crowned tooth type coupler are respectively provided with a crowned gear, and the crowned gears are respectively connected with the sun gear and the flange in a meshed manner.
2. The uniform load planetary gear reducer according to claim 1, wherein the double-sided plate arm type planetary carrier mechanism comprises an outer planetary carrier, an inner planetary carrier and a supporting shaft, the outer planetary carrier and the inner planetary carrier are respectively arranged at two sides of the planetary gear set, and two ends of the supporting shaft are respectively connected with the outer planetary carrier and the inner planetary carrier.
3. The uniform load planetary gear reduction device according to claim 2, wherein the planetary gear set comprises a planetary gear and a needle bearing, the planetary gear comprises a gear and a gear shaft which are integrally arranged, the outer planet carrier and the inner planet carrier are provided with wheel shaft holes matched with the gear shaft, the planetary gear is connected with the outer planet carrier and the inner planet carrier through the gear shaft, and the needle bearing is arranged between the gear shaft and the wheel shaft holes.
4. A uniform load planetary gear reducer according to claim 3, wherein said planetary gear set further comprises a spacer disposed between said planet and said double sided arm type planet carrier mechanism.
5. A uniform load planetary gear reducer according to claim 3, wherein the number of the planetary gears and the supporting shafts is three, and the distances between two adjacent planetary gears and the supporting shafts are equal.
6. The uniform load planetary gear reducer according to claim 1, wherein an end cover for sealing is further provided in the flange plate.
7. The uniform load planetary gear reducer according to claim 1, wherein the housing comprises an outer housing and an inner housing, the outer housing and the inner housing are provided with seal grooves, and radial shaft seal rings are arranged in the seal grooves.
8. The uniform load planetary gear reducer of claim 7, wherein a deep groove ball bearing is disposed between said housing and said double-sided-plate-arm planetary carrier mechanism.
9. The uniform load planetary gear reducer according to claim 1, wherein the crowned tooth coupling further comprises a spline shaft and shaft snap springs, two crowned gears are in spline fit with the spline shaft through the shaft snap springs, and the number of the shaft snap springs is four.
10. The uniform load planetary gear reducer according to claim 7, wherein the outer casing has a relief valve bolt hole and a drain bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320392648.2U CN220016038U (en) | 2023-03-03 | 2023-03-03 | Uniform load planetary gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320392648.2U CN220016038U (en) | 2023-03-03 | 2023-03-03 | Uniform load planetary gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220016038U true CN220016038U (en) | 2023-11-14 |
Family
ID=88693419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320392648.2U Active CN220016038U (en) | 2023-03-03 | 2023-03-03 | Uniform load planetary gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220016038U (en) |
-
2023
- 2023-03-03 CN CN202320392648.2U patent/CN220016038U/en active Active
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