CN211145246U - Planetary reducer with good durability - Google Patents
Planetary reducer with good durability Download PDFInfo
- Publication number
- CN211145246U CN211145246U CN201922142553.1U CN201922142553U CN211145246U CN 211145246 U CN211145246 U CN 211145246U CN 201922142553 U CN201922142553 U CN 201922142553U CN 211145246 U CN211145246 U CN 211145246U
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- CN
- China
- Prior art keywords
- planetary
- shell
- sun gear
- wheel
- accommodating cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 11
- 239000000969 carrier Substances 0.000 claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 9
- 239000010705 motor oil Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007792 addition Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a planetary reducer that durability is good belongs to mechanical technical field. The planetary reducer comprises a shell, an outer gear ring, two planetary carriers fixed on the shell, a plurality of planetary gears and a sun gear, wherein the planetary gears and the sun gear are rotationally connected between the two planetary carriers; the inner cavity of the shell is internally provided with liquid engine oil. The utility model has the advantages of good heat dissipation and the like.
Description
Technical Field
The utility model belongs to the technical field of machinery, a planetary reducer that durability is good is related to.
Background
The planetary reducer has the characteristics of good stability and larger reduction ratio, but the sun gear has high rotating speed and small wheel diameter as an input wheel, and is simultaneously meshed with a plurality of planet gears, so that the part is subjected to heat concentration, and under the action of high strength and high temperature, the sun gear with small wheel diameter (the diameter of a connecting shaft of the sun gear is also necessarily small) and a connecting piece of the sun gear are easy to generate thermal expansion deformation, so that the performance of the reducer after continuous operation is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that exists to current technique, provide a planetary reducer that the durability is good, the utility model aims to solve the technical problem how to improve the radiating effect.
The purpose of the utility model can be realized by the following technical proposal: a planetary reducer with good durability is characterized by comprising a shell, an outer gear ring, two planetary carriers fixed on the shell, a plurality of planetary gears and a sun gear, wherein the planetary gears and the sun gear are rotatably connected between the two planetary carriers, the sun gear is rotatably connected with the shell through an input shaft, the center of each planetary carrier is provided with a first notch corresponding to the sun gear, the planetary carriers are also provided with second notches corresponding to the planetary gears one to one, two opposite first notches on the two planetary carriers form a first accommodating cavity for accommodating the sun gear, two opposite second notches on the two planetary carriers form a second accommodating cavity for accommodating the planetary gears corresponding to the second accommodating cavity, the second accommodating cavity penetrates through the first accommodating cavity and an inner cavity of the shell, the sun gear is provided with a first annular groove penetrating through the circumferential surface of the gear body, the planetary gears are provided with a second annular groove penetrating through the circumferential surface of the gear body, a heat dissipation wheel is fixedly arranged on the first ring groove; the inner cavity of the shell is internally provided with liquid engine oil.
The first ring groove is arranged to divide the sun gear into two parts, the second buffer is arranged to divide the planet gear into two parts, the meshing surface is increased, the thickness of the planet gear and the sun gear is not increased, the heat dissipation effect is better, a heat dissipation channel and an engine oil circulation channel are formed among the first ring groove, the second ring groove and the inner cavity of the shell, the sun gear rotates at a high speed, the engine oil is thrown out at a high speed, and the temperature near the sun gear with heat concentration is rapidly reduced.
The planet wheel rotates and connects on the planet carrier, and outer ring gear rotates and connects on the casing, and outer ring gear is the output.
Drawings
Fig. 1 is a schematic structural view of the planetary reduction gear.
In the figure, 1, a housing; 2. an outer ring gear; 3. a planet carrier; 4. a planet wheel; 5. a sun gear; 6. a heat dissipation wheel.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, fig. 1 is a cross-sectional view along a vertical axis direction at the positions of a first ring groove and a second ring groove, the planetary reducer comprises a housing 1, an outer ring gear 2, two planetary carriers 3 fixed on the housing 1, a plurality of planetary gears 4 and a sun gear 5 which are rotatably connected between the two planetary carriers 3, the sun gear 5 is rotatably connected with the housing 1 through an input shaft, a first notch corresponding to the sun gear 5 is arranged at the center of the planetary carrier 3, second notches corresponding to the planetary gears 4 are also arranged on the planetary carriers 3, two first notches which are opposite on the two planetary carriers 3 form a first accommodating cavity for accommodating the sun gear 5, two second notches which are opposite on the two planetary carriers 3 form a second accommodating cavity for accommodating the planetary gears 4 corresponding to the second accommodating cavity, the second accommodating cavity penetrates through the first accommodating cavity and an inner cavity of the housing 1, and a first ring groove which penetrates through the circumferential surface of the gear body is arranged on the, the planet wheel 4 is provided with a second ring groove which penetrates through the circumferential surface of the wheel body, and the first ring groove is fixedly provided with a heat dissipation wheel 6; the inner cavity of the shell 1 is provided with liquid engine oil.
The arrangement of the first ring groove enables the sun wheel 5 to be divided into two parts, the arrangement of the second buffer enables the planet wheel 4 to be divided into two parts, the meshing surface is increased, meanwhile, the thicknesses of the planet wheel 4 and the sun wheel 5 are not increased, the heat dissipation effect is better, a heat dissipation channel and an engine oil circulation channel are formed among the first ring groove, the second ring groove and the inner cavity of the shell 1, the sun wheel 5 rotates at a high speed, the engine oil is thrown out at a high speed, and the temperature near the sun wheel 5 with heat concentration is rapidly reduced.
The planet wheel 4 rotates and connects on planet carrier 3, and outer ring gear 2 rotates and connects on casing 1, and outer ring gear 2 is the output.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (1)
1. The planetary reducer with good durability is characterized by comprising a shell (1), an outer gear ring (2), two planetary carriers (3) fixed on the shell (1), a plurality of planetary gears (4) and a sun gear (5) which are rotatably connected between the two planetary carriers (3), wherein the sun gear (5) is rotatably connected with the shell (1) through an input shaft, a first notch corresponding to the sun gear (5) is formed in the center of each planetary carrier (3), second notches corresponding to the planetary gears (4) one to one are further formed in each planetary carrier (3), two first opposite notches in the two planetary carriers (3) form a first accommodating cavity for accommodating the sun gear (5), two second opposite notches in the two planetary carriers (3) form a second accommodating cavity for accommodating the planetary gears (4) corresponding to the first accommodating cavity, and the second accommodating cavity penetrates through the first accommodating cavity and an inner cavity of the shell (1), the sun wheel (5) is provided with a first ring groove penetrating through the circumferential surface of the wheel body, the planet wheel (4) is provided with a second ring groove penetrating through the circumferential surface of the wheel body, and the first ring groove is fixedly provided with a heat dissipation wheel (6); the inner cavity of the shell (1) is internally provided with liquid engine oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922142553.1U CN211145246U (en) | 2019-11-29 | 2019-11-29 | Planetary reducer with good durability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922142553.1U CN211145246U (en) | 2019-11-29 | 2019-11-29 | Planetary reducer with good durability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145246U true CN211145246U (en) | 2020-07-31 |
Family
ID=71745384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922142553.1U Expired - Fee Related CN211145246U (en) | 2019-11-29 | 2019-11-29 | Planetary reducer with good durability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145246U (en) |
-
2019
- 2019-11-29 CN CN201922142553.1U patent/CN211145246U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 |