CN202579967U - Planet row - Google Patents
Planet row Download PDFInfo
- Publication number
- CN202579967U CN202579967U CN 201220152173 CN201220152173U CN202579967U CN 202579967 U CN202579967 U CN 202579967U CN 201220152173 CN201220152173 CN 201220152173 CN 201220152173 U CN201220152173 U CN 201220152173U CN 202579967 U CN202579967 U CN 202579967U
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- planet
- gear
- sun gear
- hole
- row
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Abstract
The utility model relates to a planet row which comprises a sun gear, a planet gear and a planet frame, wherein the sun ear is arranged in a cavity of the planet frame, the planet gear is supported on the planet frame, and a first thrust bearing is arranged between one end surface of the sun gear and the planet frame; a second thrust bearing is arranged on the other end surface of the sun gear; and the exradius of each of the first thrust bearing and the second thrust bearing is larger than the minimum distance from the tooth top of the planet gear to the central line of the planet frame, and the first thrust bearing and the second thrust bearing are in contact with the surface of the planet gear so that the planet row can bear a large axial load. A screw is inserted in the other end of a radial through hole through the planet frame and is sealed to ensure that an oil path and the radial through hole are aligned and communicated so that the planet row is conveniently assembled and disassembled. A gear is arranged at one end of the planet frame and can transfer power to a differential so that the planet row has a compact structure and saves an axial space. The gear is welded with a connection plate so that the planet row is conveniently machined. The connection plate fixedly compacts the planet gear on the planet frame so that the planet row is more conveniently mounted.
Description
Technical field
The utility model relates to a kind of speed changer and uses power transmission, specifically, relates to a kind of planet row, belongs to field of mechanical technique.
Background technique
Planet comes speed changer and is mainly used in transferring power, is constituent element important in the Gear Planet Transmission, its structure more complicated.Because planet row's structure is comparatively complicated, it is particularly important that the assembly sequency of each part seems, the rational and effective assembly technology can be enhanced productivity, and reduces cost, and can also reliable guarantee be provided to the quality of product.
In realizing process of the present invention, the inventor finds to exist at least in the existing technology following problem, and traditional planet row sun gear two ends are not provided with thrust bearing generally speaking, and such planet row can not bear thrust load; Along with the development of technology, many times need planet row can bear thrust load, the planet that has comes the sun gear two ends thrust bearing is set; According to traditional assembly technology, can only be with thrust bearing design less, its external diameter must be less than the minimum range of planet wheel tooth top to the planet carrier center line; Otherwise, just can't accomplish assembling, in this case; The ability that thrust bearing bears thrust load is restricted, and can not satisfy planet row and bear the needs of bigger thrust load; In addition, traditional planet row's planet wheel generally be through dowel fixes on planet carrier, this means of fixation is not quick detachable, needs to use the special device riveted joint, cost of production is high; And traditional planet row only uses as independent transmission component usually, and function ratio is more single, if realize other transmission agency, must increase its annexation of clutch unit control, causes, and cost is high, and transmission efficiency is low.
The model utility content
The technical problem that the utility model will solve is to above deficiency; A kind of planet row is provided; Overcome in the existing technology planet row and can not bear bigger thrust load, the not quick detachable and big defective that takes up room; After adopting described planet row, strong, the convenient disassembly of the ability that planet row bears thrust load has been saved axial space.
For solving above technical problem; The utility model adopts following technological scheme: a kind of planet row; Comprise sun gear, planet wheel and planet carrier, sun gear, planet wheel are arranged on the planet carrier, it is characterized in that: be provided with first thrust bearing between end face of said sun gear and the planet carrier;
Another end face of sun gear is provided with second thrust bearing;
The exradius of first thrust bearing, second thrust bearing is greater than the minimum range of planet wheel tooth top to the planet carrier center line.
Be coaxially connected with gear on the said sun gear, second thrust bearing is arranged between gear and the sun gear.
Another kind of optimized project, said gear is fixedly connected with planet carrier.
A kind of concrete optimized project that gear is fixedly connected with planet carrier is fixedly connected with land on the said gear, and land is connected through bolt with planet carrier.
A kind of concrete optimized project that gear is fixedly connected with land, said gear and land welding.
Another optimized project, said planet wheel is supported on the planet carrier through planet wheel shaft.
Further optimized project, said planet wheel shaft is fixedly connected with land.
A kind of concrete optimized project, said planet wheel shaft and land are welded to connect.
A kind of optimized project is provided with two needle bearings between said planet wheel and the planet wheel shaft.
Another kind of optimized project is provided with thrust washer between said planet wheel and the planet carrier.
The radially fuel-displaced oil duct that a kind of optimized project of planet wheel shaft, said planet wheel shaft are provided with radial direction through hole, axial oil duct and are used for two needle bearings are lubricated; Radial direction through hole, radially fuel-displaced oil duct and axially oil duct connection.
Another optimized project, said planet carrier is provided with oil duct, and oil duct aligns with an end of radial direction through hole and is communicated with; Planet carrier is provided with the other end that can be inserted into radial direction through hole and the screw that seals.
Further optimized project, said gear is provided with gear center hole; Sun gear is provided with the sun gear center hole; Sun gear is provided with radial direction oil hole; Gear center hole, sun gear center hole, radial direction oil hole are communicated with oil duct.
Optimized project further, the quantity of said planet wheel are 3-4.
After the utility model adopts above technological scheme; Compared with prior art; Have the following advantages: the exradius of thrust bearing is greater than the minimum range of planet wheel tooth top to the planet carrier center line, and thrust bearing contacts with the planet wheel face, makes planet row can bear bigger thrust load; Screw passes the other end and the sealing that planet carrier is inserted into radial direction through hole; Make gear center hole, sun gear center hole, radial direction oil hole, oil duct, radial direction through hole, axially oil duct and the connection of radially fuel-displaced oil duct; Radially fuel-displaced oil duct is lubricated two needle bearings; Oil duct, radial direction through hole and radially fuel-displaced oil duct position, and guarantee that oil duct, radial direction through hole alignment are communicated with, and install, dismantle more convenient; End at planet carrier is provided with gear, and gear can be to the differential mechanism transferring power, and compact structure is saved axial space; Gear and land are welded to connect, and be easy to process; Land is pressed abd fixed on planet wheel shaft on the planet carrier, installs more convenient.
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Description of drawings
Accompanying drawing 1 is planet row's among the utility model embodiment a structural representation;
Among the figure,
The 1-sun gear, 2-planet carrier, 3-screw, 4-thrust washer, 5-planet wheel; The 6-needle bearing, 7-planet wheel shaft, 8-land, 9-gear, 10-bolt; 11-first thrust bearing, 12-second thrust bearing, the radially fuel-displaced oil duct of 13-radial direction through hole, 14-, the axial oil duct of 15-; The 16-gear center hole, 17-sun gear center hole, 18-oil duct, 19-radial direction oil hole.
Embodiment
Embodiment 1, and is as shown in Figure 1, a kind of planet row; Comprise sun gear 1, planet wheel 5 and planet carrier 2; Sun gear 1 is arranged in the cavity of planet carrier 2, and planet wheel 5 is supported on the planet carrier 2, on the sun gear 1 near being provided with first thrust bearing 11 between the end face of input end and the planet carrier 2; End face near output terminal on the sun gear 1 is provided with second thrust bearing 12; The exradius of first thrust bearing 11, second thrust bearing 12 is greater than the minimum range of planet wheel 5 tooth tops to planet carrier 2 center lines; The output terminal of sun gear 1 is coaxially connected with gear 9, the second thrust bearings 12 and is arranged between gear 9 and the sun gear 1; Gear 9 is fixedly connected with planet carrier 2; Be fixedly connected with land 8 on the gear 9, land 8 is fixedly connected through bolt 10 with planet carrier 2; Gear 9 is welded to connect with land 8; Easy to process; Planet wheel 5 is supported on the planet carrier 2 through planet wheel shaft 7; Land 8 is pressed abd fixed on planet wheel shaft 7 on the planet carrier 2; Be provided with two needle bearings 6 between planet wheel 5 and the planet wheel shaft 7; Be respectively equipped with a thrust washer 4 between the two ends of planet wheel and the planet carrier 2; The radially fuel-displaced oil duct 14 that planet wheel shaft 7 is provided with radial direction through hole 13, axial oil duct 15 and is used for two needle bearings 6 are lubricated; Radial direction through hole 13, radially fuel-displaced oil duct 14 and axially oil duct 15 connections; Planet carrier 2 is provided with oil duct 18, and oil duct 18 aligns with an end of radial direction through hole 13 and is communicated with; Planet carrier 2 is provided with the other end that can be inserted into radial direction through hole 13 and the screw 3 that seals; Gear 9 is provided with gear center hole 16; Sun gear 1 is provided with sun gear center hole 17; Sun gear 1 is provided with radial direction oil hole 19; Gear center hole 16, sun gear center hole 17, radial direction oil hole 19 are communicated with oil duct 18; The quantity of planet wheel 5 is 3.
Based on arranging with upper planet, this planet row assemble according to following steps:
Get each parts of forming said planet row;
A, earlier two needle bearings 6 are placed in the axis hole of planet wheel 5, two thrust washers 4 are placed on the two ends of planet wheel 5 respectively, form planetary wheel component;
B, gear 9 and land 8 are welded as a whole;
C, external diameter is placed in the planet carrier 2 greater than first thrust bearing 11 of planet wheel 5 tooth tops to planet carrier 2 center line minimum ranges, planetary wheel component is placed on the planet carrier 2;
D, pass the axis hole of needle bearing 6 with planet wheel shaft 7, oil duct 18 aligns with an end of radial direction through hole 13, and planet wheel 5 is fixed on the planet carrier 2;
E, pass the other end that planet carrier 2 is inserted into radial direction through hole 13, planet wheel shaft 7 is fixed on the planet carrier 2 with screw 3;
F, sun gear 1 is put into planet carrier 2, sun gear 1 and planet wheel 5 engagements, the end face near input end on the sun gear 1 is supported on first thrust bearing 11;
G, external diameter is installed on the sun gear 1 on the end face near output terminal to second thrust bearing 12 of planet carrier 2 center line minimum ranges greater than planet wheel 5 tooth tops; With bolt 10 land 8 is fixedly connected with planet carrier 2 at last; Land 8 compresses planet wheel shaft 7, and gear center hole 16, the sun gear center hole 17 on the sun gear 1, the radial direction oil hole 19 on the sun gear 1, the oil duct 18 on the planet carrier 2 on the gear 9 are communicated with radial direction through hole 13, radially fuel-displaced oil duct 14, the axial oil duct 15 of planet wheel shaft 7.
Embodiment 2, and is as shown in Figure 1, a kind of planet row; Comprise sun gear 1, planet wheel 5 and planet carrier 2; Sun gear 1 is arranged in the cavity of planet carrier 2, and planet wheel 5 is supported on the planet carrier 2, on the sun gear 1 near being provided with first thrust bearing 11 between the end face of input end and the planet carrier 2; End face near output terminal on the sun gear 1 is provided with second thrust bearing 12; The exradius of first thrust bearing 11, second thrust bearing 12 is greater than the minimum range of planet wheel 5 tooth tops to planet carrier 2 center lines; The output terminal of sun gear 1 is coaxially connected with gear 9, the second thrust bearings 12 and is arranged between gear 9 and the sun gear 1; Gear 9 is fixedly connected with planet carrier 2; Be fixedly connected with land 8 on the gear 9, land 8 is fixedly connected through bolt 10 with planet carrier 2; Gear 9 is welded to connect with land 8; Planet wheel 5 is supported on the planet carrier 2 through planet wheel shaft 7; Planet wheel shaft 7 is welded as a whole with land 8; Be provided with two needle bearings 6 between planet wheel 5 and the planet wheel shaft 7; Be respectively equipped with a thrust washer 4 between the two ends of planet wheel and the planet carrier 2; The radially fuel-displaced oil duct 14 that planet wheel shaft 7 is provided with radial direction through hole 13, axial oil duct 15 and is used for two needle bearings 6 are lubricated; Radial direction through hole 13, radially fuel-displaced oil duct 14 and axially oil duct 15 connections; Planet carrier 2 is provided with oil duct 18, and oil duct 18 aligns with an end of radial direction through hole 13 and is communicated with; Planet carrier 2 is provided with the other end that can be inserted into radial direction through hole 13 and the screw 3 that seals; Gear 9 is provided with gear center hole 16; Sun gear 1 is provided with sun gear center hole 17; Sun gear 1 is provided with radial direction oil hole 19; Gear center hole 16, sun gear center hole 17, radial direction oil hole 19 are communicated with oil duct 18; The quantity of planet wheel 5 is 3.
Based on arranging with upper planet, this planet row assemble according to following steps:
Get each parts of forming said planet row;
A, earlier two needle bearings 6 are placed in the axis hole of planet wheel 5, two thrust washers 4 are placed on the two ends of planet wheel 5 respectively, form planetary wheel component;
B, gear 9, planet wheel shaft 7 and land 8 are welded as a whole;
C, external diameter is placed in the planet carrier 2 greater than first thrust bearing 11 of planet wheel 5 tooth tops to planet carrier 2 center line minimum ranges, planetary wheel component is placed on the planet carrier 2;
D, sun gear 1 is put into planet carrier 2, sun gear 1 and planet wheel 5 engagements, the end face near input end on the sun gear 1 is supported on first thrust bearing 11;
E, external diameter is installed on the sun gear 1 on the end face near output terminal to second thrust bearing 12 of planet carrier 2 center line minimum ranges greater than planet wheel 5 tooth tops;
F, planet wheel shaft 7 is passed the axis hole of needle bearing 6, the oil duct 18 on the planet carrier 2 aligns with an end of the radial direction through hole 13 of planet wheel shaft 7, with bolt 10 land 8 is fixedly connected with planet carrier 2, and planet wheel 5 is fixed on the planet carrier 2;
G, pass the other end and the sealing that planet carrier 2 is inserted into radial direction through hole 13 with screw 3, the gear center hole 16 on the gear 9, the sun gear center hole 17 on the sun gear 1, the radial direction oil hole 19 on the sun gear 1, the oil duct 18 on the planet carrier 2 are communicated with radial direction through hole 13, radially fuel-displaced oil duct 14, the axial oil duct 15 of planet wheel shaft 7.
Land among the embodiment 1 is pressed abd fixed on planet wheel shaft on the planet carrier, and land and planet wheel shaft are welded as a whole the more convenient installation of the mode that is fixed in the embodiment 2.
Those skilled in the art will recognize that; Above-mentioned embodiment is exemplary; Be in order to make those skilled in the art can better understand the utility model content, should not be construed as is the restriction to the utility model protection domain, such as; The quantity of planet wheel 5 is 3 among the above embodiment of the utility model, and the quantity that the technological scheme of the utility model is suitable for planet wheel equally is 4 or more a plurality of situation; Simultaneously, in each step, some step is carried out side by side in the planet row assembly technology; The order of the step that these carry out side by side also can be adjusted; Only however the whole assembling of influence just can, carry out side by side like step b and c, d among step e and f among the embodiment 1 and the embodiment 2, its sequencing does not influence integral body and assembles; Be not described in detail the assembly technology after its adjustment order; The utility model is not limited to above order, so long as the improvement of being done according to the utility model technological scheme, all falls into the protection domain of the utility model.
Claims (14)
1. a planet is arranged; Comprise sun gear (1), planet wheel (5) and planet carrier (2); Sun gear (1) and planet wheel (5) are arranged on the planet carrier (2), it is characterized in that: be provided with first thrust bearing (11) between end face of said sun gear (1) and the planet carrier (2);
Another end face of sun gear (1) is provided with second thrust bearing (12);
The exradius of first thrust bearing (11), second thrust bearing (12) is greater than the minimum range of planet wheel (5) tooth top to planet carrier (2) center line.
2. planet row as claimed in claim 1, it is characterized in that: be coaxially connected with gear (9) on the said sun gear (1), second thrust bearing (12) is arranged between gear (9) and the sun gear (1).
3. planet row as claimed in claim 2, it is characterized in that: said gear (9) is fixedly connected with planet carrier (2).
4. planet row as claimed in claim 3, it is characterized in that: be fixedly connected with land (8) on the said gear (9), land (8) is fixedly connected through bolt (10) with planet carrier (2).
5. planet row as claimed in claim 4, it is characterized in that: said gear (9) is welded to connect with land (8).
6. planet row as claimed in claim 5, it is characterized in that: said planet wheel (5) is supported on the planet carrier (2) through planet wheel shaft (7).
7. planet row as claimed in claim 6, it is characterized in that: said planet wheel shaft (7) is fixedly connected with land (8).
8. planet row as claimed in claim 7 is characterized in that: said planet wheel shaft (7) and land (8) welding.
9. like claim 6,7 or 8 described planet rows, it is characterized in that: be provided with two needle bearings (6) between said planet wheel (5) and the planet wheel shaft (7).
10. planet row as claimed in claim 9 is characterized in that: be provided with thrust washer (4) between said planet wheel (5) and the planet carrier (2).
11. planet row as claimed in claim 10 is characterized in that: the radially fuel-displaced oil duct (14) that said planet wheel shaft (7) is provided with radial direction through hole (13), axial oil duct (15) and is used for two needle bearings (6) are lubricated;
Radial direction through hole (13), radially fuel-displaced oil duct (14) and axially oil duct (15) connection.
12. planet row as claimed in claim 11, it is characterized in that: said planet carrier (2) is provided with oil duct (18), and oil duct (18) aligns with an end of radial direction through hole (13) and is communicated with;
Planet carrier (2) is provided with the other end that can be inserted into radial direction through hole (13) and the screw (3) that seals.
13. planet row as claimed in claim 12, it is characterized in that: said gear (9) is provided with gear center hole (16);
Sun gear (1) is provided with sun gear center hole (17);
Sun gear (1) is provided with radial direction oil hole (19);
Gear center hole (16), sun gear center hole (17), radial direction oil hole (19) are communicated with oil duct (18).
14. planet row as claimed in claim 1 is characterized in that: the quantity of said planet wheel (5) is 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152173 CN202579967U (en) | 2012-04-12 | 2012-04-12 | Planet row |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152173 CN202579967U (en) | 2012-04-12 | 2012-04-12 | Planet row |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579967U true CN202579967U (en) | 2012-12-05 |
Family
ID=47249381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220152173 Expired - Lifetime CN202579967U (en) | 2012-04-12 | 2012-04-12 | Planet row |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579967U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644724A (en) * | 2012-04-12 | 2012-08-22 | 盛瑞传动股份有限公司 | Planet row and assembly process thereof |
| CN104373577B (en) * | 2014-11-24 | 2016-08-31 | 武汉东方枫火通用技术有限公司 | A kind of self-lubricating planetary gear gear box sub-case |
| CN106969135A (en) * | 2017-05-19 | 2017-07-21 | 重庆望江工业有限公司 | A kind of automotive transfer case planet row structure |
| CN109661530A (en) * | 2016-09-06 | 2019-04-19 | 舍弗勒技术股份两合公司 | With can nondestructive demounting sun gear spur gear differential mechanism |
| CN109681594A (en) * | 2018-12-03 | 2019-04-26 | 中国北方车辆研究所 | A kind of design method improving the planet row service life |
-
2012
- 2012-04-12 CN CN 201220152173 patent/CN202579967U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644724A (en) * | 2012-04-12 | 2012-08-22 | 盛瑞传动股份有限公司 | Planet row and assembly process thereof |
| CN104373577B (en) * | 2014-11-24 | 2016-08-31 | 武汉东方枫火通用技术有限公司 | A kind of self-lubricating planetary gear gear box sub-case |
| CN109661530A (en) * | 2016-09-06 | 2019-04-19 | 舍弗勒技术股份两合公司 | With can nondestructive demounting sun gear spur gear differential mechanism |
| CN109661530B (en) * | 2016-09-06 | 2022-04-08 | 舍弗勒技术股份两合公司 | Spur gear differential with sun gear capable of being dismounted without damage |
| CN106969135A (en) * | 2017-05-19 | 2017-07-21 | 重庆望江工业有限公司 | A kind of automotive transfer case planet row structure |
| CN109681594A (en) * | 2018-12-03 | 2019-04-26 | 中国北方车辆研究所 | A kind of design method improving the planet row service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |