CN220151854U - Planetary reducer - Google Patents
Planetary reducer Download PDFInfo
- Publication number
- CN220151854U CN220151854U CN202321679389.8U CN202321679389U CN220151854U CN 220151854 U CN220151854 U CN 220151854U CN 202321679389 U CN202321679389 U CN 202321679389U CN 220151854 U CN220151854 U CN 220151854U
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- CN
- China
- Prior art keywords
- planetary
- gear
- planetary reducer
- output shaft
- input shaft
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 35
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 241000883990 Flabellum Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of mechanical equipment, in particular to a planetary reducer. The technical scheme is as follows: the novel solar energy power generation device comprises a front flange, a rear flange, an input shaft, an output shaft, a sun gear, a planetary gear and a gear ring, wherein the input shaft is rotationally connected in the rear flange and fixedly connected with the sun gear, the planetary gear is arranged between the sun gear and the gear ring and is meshed with the sun gear and the gear ring, the planetary gear is rotationally connected with the output shaft, the rear end of the input shaft is provided with cooling fan blades, and exhaust holes are formed in the outer side of the rear flange. The beneficial effects are that: when the input shaft is driven to rotate by the motor, the heat dissipation fan blades can be driven to rotate to dissipate heat inside the planetary reducer and exhaust hot air from the exhaust holes of the rear flange, so that effective heat dissipation of the planetary reducer is achieved, the continuous and stable working time of the planetary reducer is prolonged, the added heat dissipation fan blades cannot increase the volume of the whole appearance of the planetary reducer, the processing cost is low, and the installation requirement can be met under the condition that the installation space is limited.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to a planetary reducer.
Background
The planetary reducer is a common mechanical transmission component, and can reduce the rotation speed of a motor and increase the output torque. The planetary reducer has the advantages of high precision, strong rigidity, small volume, compact structure, convenient installation and the like, and is widely applied to the mechanical industry. However, in the continuous operation of the planetary reducer, the internal temperature of the planetary reducer is increased due to friction heating between internal parts, and if the planetary reducer is continuously used for a long time, the internal parts are easily deformed and damaged, so that the service life of the reducer is affected. Therefore, the planetary reducer without the heat dissipation mechanism can only work intermittently, and has a certain influence on the production efficiency; at present, some planetary speed reducers are provided with heat dissipation devices, and an oil cooling or air cooling mode is generally adopted, but the problems of overlarge volume, complex structure, overlarge cost and the like of the heat dissipation devices exist, and the heat dissipation devices are not applicable to equipment with limited part of installation space.
Disclosure of Invention
The utility model aims to provide a planetary reducer, in particular to a planetary reducer with a heat dissipation function, which has a compact structure and is convenient to process.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the planetary reducer comprises a front flange, a rear flange, an input shaft, an output shaft, a sun gear, a planetary gear and a gear ring, wherein the gear ring is fixed between the front flange and the rear flange, the input shaft is rotationally connected in the rear flange and fixedly connected with the sun gear, the sun gear is positioned at the center of the inner side of the gear ring, the planetary gear is arranged between the sun gear and the gear ring and is meshed and connected with the outer side of the sun gear and the inner side of the gear ring, the planetary gear is rotationally connected with the output shaft, and the output shaft is rotationally connected with the front flange; the rear end of the input shaft is provided with a heat dissipation fan blade, and the outer side of the rear flange is provided with an exhaust hole.
Specifically, the radiating fan blade comprises a fixed ring and fan blades arranged on the outer side of the fixed ring, and the radiating fan blades are fixedly connected with the outer side of the input shaft through the fixed ring.
Specifically, the output shaft is rotationally connected with the front flange through a first bearing, and the rear end part of the output shaft is rotationally connected with the gear ring and the front end of the rear flange through a second bearing.
Specifically, the input shaft is rotatably connected with the rear flange through a third bearing and a fourth bearing.
Specifically, the rear end of the rear flange is fixedly provided with a motor mounting flange.
Specifically, the planetary gears are a plurality of and are arranged in an equidistant circumferential array along the axis of the output shaft, the rear side of the rear end part of the output shaft is correspondingly provided with a fixed pin shaft with the planetary gears, and the planetary gears are rotationally sleeved on the fixed pin shaft.
The utility model has the beneficial effects that: through set up the heat dissipation flabellum in the tip after the input shaft to set up the exhaust hole in the rear flange outside, when the input shaft is rotated by motor drive, thereby not only can rotate around the sun gear through sun gear drive planetary gear and realize the speed reduction drive to the output shaft, simultaneously can also drive the heat dissipation flabellum and rotate and dispel the heat and discharge the steam to the planetary reducer inside and follow the exhaust hole of rear flange, realize the effective heat dissipation to the planetary reducer, the time of the continuous steady work of extension planetary reducer, and the heat dissipation flabellum that increases can not increase the volume of the whole appearance of planetary reducer, the processing cost is lower and still can satisfy the installation demand under the limited circumstances of installation space.
Drawings
FIG. 1 is a schematic cross-sectional view of a planetary reducer according to an embodiment;
fig. 2 is a schematic structural diagram of a heat dissipating fan blade according to an embodiment.
Detailed Description
1, referring to fig. 1-2, a planetary reducer comprises a front flange 1, a rear flange 2, an input shaft 3, an output shaft 4, a sun gear 5, a planetary gear 6 and a gear ring 7, wherein the gear ring 7 is fixed between the front flange 1 and the rear flange 2, the input shaft 3 is rotationally connected in the rear flange 2 and fixedly connected with the sun gear 5, the sun gear 5 is positioned at the center of the inner side of the gear ring 7, the planetary gear 6 is arranged between the sun gear 5 and the gear ring 7 and is in meshed connection with the outer side of the sun gear 5 and the inner side of the gear ring 7, the planetary gear 6 is rotationally connected with the output shaft 4, and the output shaft 4 is rotationally connected with the front flange 1; the rear end of the input shaft 3 is provided with a heat dissipation fan blade 8, and the outer side of the rear flange 2 is provided with an exhaust hole 21.
In this embodiment, the front flange 1 is used to fixedly mount the speed reducer on the driven device, the output shaft 4 is connected with the driven device, the rear end of the rear flange 2 is fixedly provided with a motor mounting flange 10 for fixedly mounting a motor, the output rotating shaft of the motor is connected with the input shaft 3, the motor rotates to drive the input shaft 3 to rotate, the input shaft 3 rotates to drive the heat dissipation fan blades 8 to rotate, the heat dissipation fan blades 8 rotate to drive the air in the planetary speed reducer to flow, and the hot air generated by friction of parts in the planetary speed reducer is discharged from the exhaust hole 21 outside the rear flange 2, so that effective heat dissipation of the planetary speed reducer is realized; the input shaft 3 also drives the sun gear 5 to rotate when rotating, the sun gear 5 drives the planet gears 6 positioned between the sun gear 5 and the gear ring 7 to rotate and do circular motion around the rotating shaft of the sun gear 5, the planet gears 6 are connected with the output shaft 4, and when the planet gears 6 do circular motion around the sun gear 5, the output shaft 4 is driven to rotate around the rotating shaft of the sun gear 5.
Specifically, the heat dissipation fan blade 8 includes a fixing ring 81 and a fan blade 82 disposed outside the fixing ring 81, and the heat dissipation fan blade 8 is fixedly connected with the outside of the input shaft 3 through the fixing ring 81. The fixing ring 81 can be fixedly connected with the outer side of the input shaft 3 through a screw, so that the stable connection between the heat dissipation fan blade 8 and the input shaft 3 is realized.
Specifically, the output shaft 4 is rotatably connected to the front flange 1 through a first bearing 91, and the rear end portion of the output shaft 4 is rotatably connected to the ring gear 7 and the front end of the rear flange 2 through a second bearing 92. The rear end of the output shaft 4 needs to be connected with the planetary gear 6, so that the output shaft 4 is rotationally connected with the front flange 1 through the first bearing 91, and is rotationally connected with the front ends of the gear ring 7 and the rear flange 2 through the second bearing 92 at the rear end, the outer ring of the second bearing 92 is fixedly clamped with the front ends of the gear ring 7 and the rear flange 2, and the inner ring of the second bearing 92 is fixedly clamped with the rear end of the output shaft 4.
Specifically, the input shaft 3 is rotatably connected to the rear flange 2 through the third bearing 93 and the fourth bearing 94, so that the stability of rotation of the input shaft 3 can be improved. The first bearing 91, the second bearing 92, the third bearing 93 and the fourth bearing 94 described above all use single-row deep groove bearings.
Specifically, the plurality of planetary gears 6 are arranged in an equidistant circumferential array along the axis of the output shaft 4, the rear side of the rear end portion of the output shaft 4 is provided with a fixed pin 41 corresponding to the planetary gears 6, and the planetary gears 6 are rotatably sleeved on the fixed pin 41. In this embodiment, the number of the planetary gears 6 is three, the rear side of the rear end portion of the output shaft 4 is provided with a pin hole for installing the fixed pin 41, the planetary gears 6 are rotationally sleeved on the fixed pin 41 and can be rotationally connected through needle bearings, when the planetary gears 6 do circular motion around the sun gear 5, the output shaft 4 can be driven to rotate through the fixed pin 41, and the stability of the rotation of the output shaft 4 can be improved through the arrangement of a plurality of planetary gears 6.
Of course, the above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, so that all equivalent modifications made in the principles of the present utility model are included in the scope of the present utility model.
Claims (6)
1. A planetary reducer, characterized in that: the planetary gear is arranged between the sun gear and the gear ring and is in meshed connection with the outer side of the sun gear and the inner side of the gear ring, the planetary gear is in rotary connection with the output shaft, and the output shaft is in rotary connection with the front flange; the rear end of the input shaft is provided with a heat dissipation fan blade, and the outer side of the rear flange is provided with an exhaust hole.
2. A planetary reducer according to claim 1, characterized in that: the radiating fan blade comprises a fixed ring and fan blades arranged on the outer side of the fixed ring, and the radiating fan blades are fixedly connected with the outer side of the input shaft through the fixed ring.
3. A planetary reducer according to claim 1, characterized in that: the output shaft is rotationally connected with the front flange through a first bearing, and the rear end part of the output shaft is rotationally connected with the gear ring and the front end of the rear flange through a second bearing.
4. A planetary reducer according to claim 1, characterized in that: the input shaft is rotatably connected with the rear flange through a third bearing and a fourth bearing.
5. A planetary reducer according to claim 1, characterized in that: and a motor mounting flange is fixedly arranged at the rear end of the rear flange.
6. A planetary reducer according to claim 1, characterized in that: the planetary gears are arranged in a plurality and are arranged in an equidistant circumferential array along the axis of the output shaft, the rear side of the rear end part of the output shaft is correspondingly provided with fixed pin shafts with the planetary gears, and the planetary gears are rotationally sleeved on the fixed pin shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321679389.8U CN220151854U (en) | 2023-06-29 | 2023-06-29 | Planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321679389.8U CN220151854U (en) | 2023-06-29 | 2023-06-29 | Planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151854U true CN220151854U (en) | 2023-12-08 |
Family
ID=89006928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321679389.8U Active CN220151854U (en) | 2023-06-29 | 2023-06-29 | Planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151854U (en) |
-
2023
- 2023-06-29 CN CN202321679389.8U patent/CN220151854U/en active Active
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| GR01 | Patent grant |