CN220850588U - Planet wheel structure for planetary speed reducer - Google Patents
Planet wheel structure for planetary speed reducer Download PDFInfo
- Publication number
- CN220850588U CN220850588U CN202322530285.7U CN202322530285U CN220850588U CN 220850588 U CN220850588 U CN 220850588U CN 202322530285 U CN202322530285 U CN 202322530285U CN 220850588 U CN220850588 U CN 220850588U
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- Prior art keywords
- primary
- shaft
- sun gear
- planetary
- gear
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
A planetary gear structure for a planetary reducer comprises a primary planet carrier, wherein a plurality of stand columns are fixed on the primary planet carrier, a plurality of primary planet gears are rotatably connected to the stand columns, a primary sun gear shaft penetrates through the center of the primary planet carrier, a primary sun gear meshed with the plurality of primary planet gears is fixed at one end of the primary sun gear shaft, a primary gear ring is meshed and connected to the outer edges of the plurality of primary planet gears, and a sealing end cover is arranged at the edge of the primary gear ring; the planetary reducer drives the primary sun gear shaft to rotate, and meanwhile, the primary sun gear on the primary sun gear shaft drives a plurality of primary planet gears to rotate, and the primary planet gears rotate around the internal teeth of the primary gear ring so as to achieve the purpose of reducing speed; the utility model has the advantages of simple structure, good reliability, good safety and low maintenance cost.
Description
Technical Field
The utility model relates to the technical field of planetary gears, in particular to a planetary gear structure for a planetary reducer.
Background
The existing dome bin pitching mechanism planetary reducer is unreasonable in design of high-speed shaft load, so that a first-stage sun wheel is continuously worn in the using process, a large amount of scrap iron is generated in the planetary reducer, the scrap iron is damaged along with lubricating oil in the running process, a bearing is damaged, the first-stage planet carrier is further continuously damaged, first-stage sun gear teeth are broken or cannot normally mesh with a second-stage planet wheel to drive in the running process of the planetary reducer, a material taking scraping plate of a stacker-reclaimer directly falls down to a coal pile, equipment such as a material taking scraping plate large arm and scraping plate is damaged, great influence is caused on production, even dangerous accidents such as spontaneous combustion of stored coal in a bin can be caused, and the existing solution only replaces the internally damaged first-stage sun wheel and the planet carrier, so that the problem cannot be fundamentally solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a planet wheel structure for a planet speed reducer, which has the advantages of simple structure, good reliability, good safety and low maintenance cost by increasing the diameter of a first-stage sun wheel shaft body, increasing the tooth widths of a first-stage sun wheel and a first-stage planet gear, increasing the section diameter of an upright post, connecting a shaft shoulder on the first-stage sun wheel with the center of an end cover, and arranging a sparse guide groove on the first-stage sun wheel shaft body so as to drop lubricating oil and facilitate scrap iron discharge.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a planet wheel structure for planetary reducer, includes one-level planet carrier 2, be fixed with a plurality of stand 7 on the one-level planet carrier 2, stand 7 rotates and is connected with a plurality of one-level planetary gear 1, one-level sun gear shaft 3 has been worn to one-level sun gear shaft 2 center department, one end of one-level sun gear shaft 3 is fixed with the one-level sun gear 6 with the meshing of a plurality of one-level planetary gear 1, the meshing of a plurality of one-level planetary gear 1 outer edges department is connected with one-level ring gear 4, seal end cover 5 is installed to the edge of one-level ring gear 4 one end.
One end of the primary sun wheel shaft 3, which is fixedly provided with the primary sun wheel 6, is provided with a shaft shoulder 8, the center of the sealing end cover 5 is provided with a shaft shoulder mounting hole 12, and the shaft shoulder mounting hole 12 is rotationally connected with the shaft shoulder 8.
The primary sun gear shaft 3 comprises a shaft body 9, a dredging groove 10 for dripping lubricating oil or discharging worn scrap iron is formed in one end, close to the primary sun gear 3, of the shaft body 9, and a spline 11 used for being connected with a power output end of the planetary reducer is formed in the other end of the shaft body 9.
The shaft diameter of the shaft body 9 is 1.01-1.15 times of the industry standard JB/T13605-2018.
The tooth width of the first-stage sun gear 6 is 1.1-1.8 times of the national standard GB/T33923-2017.
The tooth width of the primary planet gear 1 is 1.1-1.5 times of the national standard GB/T33923-2017.
The section diameter of the upright post 7 is 1.01-1.85 times of the national standard GB/T33923-2017.
The edge of the primary gear ring 4 is provided with a plurality of bolt holes 13 for fixing the sealing end cover 5.
Compared with the prior art, the utility model has the beneficial effects that:
1. The primary planet carrier 2 is provided with a plurality of primary planet gears 1, a primary sun wheel shaft 3 penetrates through the center of the primary planet carrier 2, so that a primary sun wheel 6 is meshed with the primary planet gears 1 to form a planet wheel structure, and finally a primary gear ring 4 is arranged outside the primary planet gears 1.
2. The shaft shoulder 8 is additionally arranged on the first-stage sun gear shaft 3 and is in rotary connection with the shaft shoulder mounting hole 12 in the center of the sealing cover 5, so that the problem of unstable running state caused by unfixed one end of the load shaft in the prior art is solved, and the utility model has the advantage of good reliability.
3. The shaft body 9 of the primary sun gear shaft 3 is provided with the guide groove 10 for dripping lubricating oil, so that chips generated by abrasion of the primary sun gear 6 are conveniently discharged, and the chips are prevented from damaging other structures, so that the utility model has the advantage of good safety.
4. By increasing the shaft diameter of the shaft body 9, the tooth width of the primary sun gear 6, the tooth width of the primary planet gear 1 and the section diameter of the upright post 7, the integral structural strength of the utility model is improved, the service life is prolonged, and the maintenance cost is further saved.
In summary, the shaft shoulder 8 is additionally arranged on the primary sun gear shaft 3 in the planetary gear structure and is matched with the shaft shoulder mounting hole 12 in the center of the sealing cover 5, and the shaft body 9 of the primary sun gear shaft 3 is provided with the sparse guide groove 10 for dripping lubricating oil, so that the worn debris of the primary sun gear 6 is conveniently discharged, the shaft diameter of the shaft body 9, the tooth width of the primary sun gear 6, the tooth width of the primary planet gear 1 and the section diameter of the upright post 7 are increased, and the planetary gear has the advantages of being simple in structure, good in reliability, good in safety and low in maintenance cost.
Drawings
Fig. 1 is a schematic perspective view of the utility model with the seal cap 5 removed.
Fig. 2 is a schematic perspective view of the sealing cover 5 and the primary gear ring 4.
Fig. 3 is a schematic structural view of the primary sun gear shaft 3 of the present utility model.
In the figure, 1, a primary planetary gear, 2, a primary planet carrier, 3, a primary sun gear shaft, 4, a primary gear ring, 5, a sealing cover, 6, a primary sun gear, 7, an upright post, 8, a shaft shoulder, 9, a shaft body, 10, a dredging groove, 11, a spline, 12, a shaft shoulder mounting hole, 13 and a bolt hole.
Detailed Description
The structural and operational principles of the present utility model will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a planetary gear structure for a planetary reducer comprises a primary planet carrier 2, a plurality of stand columns 7 are fixed on the primary planet carrier 2, the stand columns 7 are rotationally connected with a plurality of primary planet gears 1 through bearings, a primary sun wheel shaft 3 penetrates through the center of the primary planet carrier 2, one end of the primary sun wheel shaft 3 is fixed with a primary sun wheel 6 meshed with a plurality of primary planet gears 1, a primary gear ring 4 is meshed and connected with the outer edges of the primary planet gears 1, and a sealing end cover 5 is installed at the edge of one end of the primary gear ring 4.
Referring to fig. 2 and 3, a shoulder 8 is disposed at one end of the primary sun gear shaft 3 where the primary sun gear 6 is fixed, a shoulder mounting hole 12 is disposed at the center of the seal end cap 5, and the shoulder 8 is rotatably connected with the shoulder mounting hole 12 by mounting a bearing in the shoulder mounting hole 12, in this embodiment, the shaft diameter of the shoulder 8 is 25mm, and the matching with the seal end cap of the speed reducer is completed by using a GB/T276-94 deep groove ball bearing 6205-2Z.
The primary sun gear shaft 3 comprises a shaft body 9, a shaft shoulder 8 is arranged at one end, close to the primary sun gear 3, of the shaft body 9, a dredging groove 10 is formed in the shaft body 9 and used for dripping lubricating oil or discharging scrap iron generated by abrasion of the sun gear, a spline 11 used for being connected with a power output end of a planetary reducer is formed at the other end of the shaft body 9, the shaft diameter of the shaft body 9 is 1.01-1.15 times of that of an industry standard JB/T13605-2018, and in the embodiment, the diameter of the shaft body 9 is increased from 30mm to 46mm so as to improve the shaft body strength of the primary sun gear shaft 3.
The tooth width of the first-stage sun gear 6 is 1.1-1.8 times of the national standard GB/T33923-2017, and in the embodiment, the tooth width of the first-stage sun gear 6 is increased from 25mm to 45mm so as to reduce the contact stress of the first-stage sun gear 6, thereby prolonging the service life of the first-stage sun gear 6.
The tooth width of the primary planet gear 1 is 1.1-1.5 times of the national standard GB/T33923-2017, the section diameter of the upright post 7 is 1.01-1.85 times of the national standard GB/T33923-2017, in the embodiment, the tooth width of the primary planet gear 1 is increased from 30mm to 45mm, in order to lighten the quality of the reformed primary planet gear 1, the inner diameter of the primary planet gear 1 is enlarged to 90mm, a cylindrical roller bearing of 65-90 is selected, the section diameter of the upright post 7 on the primary planet carrier 2 is increased from 35mm to 65mm according to the selection of the bearing, and in order to improve the integral strength of the planet carrier, the chassis of the primary planet carrier 2 is thickened.
The edge of the primary gear ring 4 is provided with a plurality of bolt holes 13 for fixing the sealing end cover 5, and bolts penetrate through the bolt holes 13 to connect the primary gear ring 4 with the sealing end cover 5 so as to improve the tightness of the utility model.
The working principle of the utility model is as follows:
The method comprises the steps of installing primary planet gears 1 on stand columns 7 on a primary planet carrier 2, penetrating a primary sun gear shaft 3 into the center of the primary planet carrier 2, installing primary sun gears 6 on the primary sun gear shaft 3 and enabling the primary sun gear shaft to be meshed with each primary planet gear 1, sleeving primary gear rings 4 on the peripheries of the plurality of primary planet gears 1, enabling inner teeth of the primary gear rings 4 to be meshed with outer teeth of the primary planet gears 1, installing a seal end cover 5 on the primary gear rings 4, enabling shaft shoulders 8 on the primary sun gear shaft 3 to penetrate into bearings of shaft shoulder installation holes 12 on the seal end cover 5, finally fixing the seal end cover 5 and the primary gear rings 4 through bolt holes 13 by using bolts, and finally installing splines 11 of the primary sun gear shaft 3 into a planetary reducer.
The planetary reducer drives the one-stage sun gear shaft 3 to rotate, and meanwhile, the one-stage sun gear 6 on the one-stage sun gear shaft 3 drives the plurality of one-stage planet gears 1 to rotate, and the one-stage planet gears 1 rotate around the internal teeth of the one-stage gear ring 4 to achieve the purpose of reducing speed, and the shaft shoulder 8 on the one-stage sun gear shaft 3 penetrates into the shaft shoulder mounting hole 12, so that the other end of the one-stage sun gear shaft 3 is fixed, and the one-stage sun gear shaft 3 is prevented from shaking in rotation to cause abrasion of the one-stage sun gear 6.
Claims (8)
1. The utility model provides a planet wheel structure for planetary reducer, includes one-level planet carrier (2), its characterized in that, be fixed with a plurality of stands (7) on one-level planet carrier (2), stand (7) rotate and are connected with a plurality of one-level planetary gear (1), one-level sun gear shaft (3) are worn to one-level sun gear shaft (2) center department, one end of one-level sun gear shaft (3) is fixed with one-level sun gear (6) with a plurality of one-level planetary gear (1) meshing, a plurality of one-level planetary gear (1) outer edge department meshing is connected with one-level ring gear (4), seal end cover (5) are installed to the edge of one-level ring gear (4) one end.
2. The planetary gear structure for the planetary reducer according to claim 1, wherein a shaft shoulder (8) is arranged at one end of the primary sun gear shaft (3) fixed with the primary sun gear (6), a shaft shoulder mounting hole (12) is formed in the center of the sealing end cover (5), and the shaft shoulder mounting hole (12) is rotationally connected with the shaft shoulder (8).
3. The planetary gear structure for the planetary reducer according to claim 1 or 2, wherein the primary sun gear shaft (3) comprises a shaft body (9), a drain groove (10) for dripping lubricating oil or discharging worn scrap iron is formed in one end, close to the primary sun gear (6), of the shaft body (9), and a spline (11) for being connected with a power output end of the planetary reducer is formed in the other end of the shaft body (9).
4. A planetary gear structure for a planetary reducer according to claim 3, characterized in that the shaft diameter of the shaft body (9) is 1.01-1.15 times the industry standard JB/T13605-2018.
5. The planetary gear structure for a planetary reducer according to claim 1 or 2, characterized in that the tooth width of the primary sun gear (6) is 1.1-1.8 times of the national standard GB/T33923-2017.
6. The planetary gear structure for the planetary reducer according to claim 1, wherein the tooth width of the primary planetary gear (1) is 1.1-1.5 times of the national standard GB/T33923-2017.
7. The planetary gear structure for a planetary reducer according to claim 1, characterized in that the section diameter of the upright (7) is 1.01-1.85 times of the national standard GB/T33923-2017.
8. The planetary gear structure for the planetary reducer according to claim 1, wherein a plurality of bolt holes (13) for fixing the seal end cover (5) are formed at the edge of the primary ring gear (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322530285.7U CN220850588U (en) | 2023-09-18 | 2023-09-18 | Planet wheel structure for planetary speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322530285.7U CN220850588U (en) | 2023-09-18 | 2023-09-18 | Planet wheel structure for planetary speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850588U true CN220850588U (en) | 2024-04-26 |
Family
ID=90781843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322530285.7U Active CN220850588U (en) | 2023-09-18 | 2023-09-18 | Planet wheel structure for planetary speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850588U (en) |
-
2023
- 2023-09-18 CN CN202322530285.7U patent/CN220850588U/en active Active
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