CN104389988A - Planetary gear set for automatic transmission and assembling technology of planetary gear set - Google Patents
Planetary gear set for automatic transmission and assembling technology of planetary gear set Download PDFInfo
- Publication number
- CN104389988A CN104389988A CN201410611109.9A CN201410611109A CN104389988A CN 104389988 A CN104389988 A CN 104389988A CN 201410611109 A CN201410611109 A CN 201410611109A CN 104389988 A CN104389988 A CN 104389988A
- Authority
- CN
- China
- Prior art keywords
- planet
- planetary gear
- planet wheel
- clutch
- wheel shaft
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/006—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising eight forward speeds
Abstract
The invention relates to a planetary gear set for an automatic transmission and an assembling technology of the planetary gear set. The planetary gear set comprises a sun gear, a planetary carrier and clutch inner hub welding assembly and a planetary gear, wherein the planetary carrier and clutch inner hub welding assembly comprises a planetary carrier and a clutch inner hub which are connected in a welding way, and the planetary gear is arranged on the clutch inner hub through a planetary gear shaft. The planetary gear set disclosed by the invention has the advantages that the planetary gear shaft adopts a stepped shaft, one end of the planetary gear shaft is provided with a planetary gear shaft extension part of which the diameter is smaller than that of a planetary gear shaft body, a riveting groove which is tightly matched with the planetary gear shaft extension part is formed in the clutch inner hub, the planetary gear shaft is tightly matched with the matching position of the clutch inner hub, and lubricating oil is effectively prevented from flowing away from the end surface of the planetary gear shaft; during riveting, only the lower end of the planetary gear shaft needs to be riveted, since the wall thickness of the end part is thickened, the riveting is convenient, the function of meeting large demanded quantity on the lubricating oil of the planetary gear is achieved, and the assembling difficulty is reduced.
Description
Technical field
The present invention relates to a kind of planet row, be applicable to multidrive, be particularly useful for 8-speed automatic transmission, specifically, relate to a kind of automatic transmission planet row and assembly technology thereof, belong to field of mechanical technique.
Background technique
Planet row is mainly used in transferring power in the transmission, is important component part in Gear Planet Transmission, its complicated structure.Because the structure of planet row is comparatively complicated, the assembly sequency of each part seems particularly important, and rationally effective assembly technology can be enhanced productivity, and reduces costs, can also provide reliable guarantee to the quality of product.
At present, the axle of even thickness that what the planet wheel shaft of speed changer planet row adopted is, after in clutch, hub welds with planet carrier, there is gap at surface of contact place, during work, from then on lubricant oil can flow out in gap, although gap diminishes after installed rows spider gear shaft, but still have lubricant oil can flow out a part from here, cause planet row lubricant oil to lack, insufficient lubrication, part oil pressure releases from planet wheel shaft end face, the demand of planet row to lubricant oil can not be met, planet wheel insufficient lubrication, easily cause planet wheel scaling loss, reduce the safety coefficient of gearbox, add cost.
Adopt two ends riveting method during planet wheel riveted joint, lower riveted joint end makes planet wheel shaft distortion be riveted on planet carrier, and upper riveted joint end makes planet carrier be out of shape and fixes planet wheel shaft, and so upper and lower two ends fixedly make planet wheel shaft fix.Two ends riveted joint is not only riveted difficulty but also is planet carrier is out of shape the axial dimension of planet carrier will be made like this to change when riveting in upper end, planet is caused to take turns to the gap smaller of planet carrier, make planet wheel to seize up, the serious problems such as a planet wheel scaling loss will be gone out like this under complex working condition.
Summary of the invention
The technical problem to be solved in the present invention is for above deficiency, a kind of automatic transmission planet row is provided, solve lubricant oil in prior art easily reveal from planet wheel shaft end face thus cause the defect of planet wheel scaling loss, after adopting planet row of the present invention, planet wheel shaft end coordinates closely with hub cooperation place in clutch, effectively avoid the problem that lubricant oil is revealed from planet wheel shaft end face, reliable product quality, long service life.
The present invention also provides a kind of assembly technology of automatic transmission planet row, solves the defect of the riveted joint of planet wheel in prior art difficulty and rivet deformation, after adopting assembly technology of the present invention, has that assembling difficulty is low, manufacturing efficiency is high, the advantage that cost is low.
For solving above technical problem, the present invention is by the following technical solutions: a kind of automatic transmission planet row, comprise hub weld assembly and planet wheel in sun gear, planet carrier and clutch, in planet carrier and clutch, hub weld assembly comprises hub in the planet carrier and clutch that are welded to connect, and planet wheel to be arranged in clutch on hub by planet wheel shaft.
A kind of optimized project, described planet wheel shaft comprises planet wheel shaft body, and one end of planet wheel shaft body is provided with planet wheel shaft extending portion, and the diameter of planet wheel shaft extending portion is less than the diameter of planet wheel shaft body;
In described clutch, the inwall of hub is provided with the close-fitting riveted joint groove with planet wheel shaft extending portion.
Another kind of optimized project, the other end of described planet wheel shaft body is provided with the groove for correcting direction when mounted.
Another optimized project, is provided with bearing in hub weld assembly in described planet carrier and clutch;
Bearing is provided with between described planet wheel and planet wheel shaft;
Planet wheel thrust washer is respectively equipped with between hub weld assembly in the two ends of described planet wheel and planet carrier and clutch.
Further optimized project, is provided with two groups of sun gear thrust washers between hub weld assembly in described sun gear and planet carrier and clutch;
Sun gear thrust bearing is provided with between described two groups of sun gear thrust washers.
The present invention also provides a kind of assembly technology of automatic transmission planet row, comprises the following steps:
A. bearing is installed;
B. planetary wheel component is assembled;
C. to assemble in planetary wheel component, planet wheel shaft to planet carrier and clutch on hub weld assembly;
D. in planet wheel shaft and planet carrier and clutch, hub weld assembly is riveted;
E. planet row is assembled.
Two bearings are placed in the axis hole of planet wheel in described step b, two thrust washers are placed on respectively the two ends of planet wheel by a kind of optimized project respectively, composition planetary wheel component.
Another kind of optimized project, be placed in planet carrier and clutch in hub weld assembly by 1 sun gear thrust washer, 1 sun gear thrust bearing, 1 sun gear thrust washer successively in described step e, sun gear to be sleeved in planet carrier and clutch on hub weld assembly.
After the present invention adopts above technological scheme, compared with prior art, have the following advantages: planet wheel shaft adopts multidiameter shaft, one end of planet wheel shaft is provided with the planet wheel shaft extending portion that diameter is less than planet wheel shaft body, in clutch, hub is provided with the close-fitting riveted joint groove with planet wheel shaft extending portion, planet wheel shaft and clutch hub cooperation place closely cooperate, efficiently avoid lubricant oil to run off from planet wheel shaft end face, during riveted joint, only riveted joint planet wheel shaft lower end, and because wall thickness reduction riveted joint in end is convenient, therefore the design not only meets the planet wheel function large to demand for lubricating oil amount, also reduce assembling difficulty.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of planet row in the embodiment of the present invention;
Accompanying drawing 2 is using state schematic diagram of planet wheel shaft in the embodiment of the present invention;
Accompanying drawing 3 is structural representations of planet wheel shaft in the embodiment of the present invention;
Accompanying drawing 4 is partial sectional views of hub in clutch in the embodiment of the present invention;
Accompanying drawing 5 is structural representations of hub and planet wheel shaft riveted joint place in clutch in the embodiment of the present invention;
In figure,
1-sun gear, hub weld assembly in 2-planet carrier and clutch, 3-planet wheel shaft, 31-planet wheel shaft body, 32-planet wheel shaft extending portion, 33-groove, 34-oil duct, 4-planet wheel, 5-bearing, 6-planet wheel thrust washer, 7-sun gear thrust washer, 8-sun gear thrust bearing, 9-bearing, hub in 10-clutch, 11-rivets groove, 12-riveted joint place.
Embodiment
Embodiment, as shown in Figures 2 and 3, a kind of automatic transmission planet row, comprise hub weld assembly 2 and planet wheel 4 in sun gear 1, planet carrier and clutch, in planet carrier and clutch, hub weld assembly 2 comprises hub 10 in the planet carrier and clutch that are welded to connect, sun gear 1 to be sleeved in planet carrier and clutch on hub weld assembly 2, sun gear thrust washer 7 is provided with between hub weld assembly 2 in sun gear 1 and planet carrier and clutch, sun gear thrust washer 7 is provided with two groups, is provided with sun gear thrust bearing 8 between two groups of sun gear thrust washers 7.
Described planet wheel 4 to be arranged in planet carrier and clutch on hub weld assembly 2 by planet wheel shaft 3, planet wheel 4 and sun gear 1 engagement driving, bearing 5 is provided with between planet wheel 4 and planet wheel shaft 3, needle bearing selected by described bearing 5, is respectively equipped with planet wheel thrust washer 6 in the two ends of planet wheel 4 and planet carrier and clutch between hub weld assembly 2;
Be provided with bearing 9 in hub weld assembly 2 in described planet carrier and clutch, bearing 9 is positioned at the lower end of input shaft, described Selection of Bearings deep groove ball bearing.
As shown in Figure 4, described planet wheel shaft 3 comprises planet wheel shaft body 31, one end of planet wheel shaft body 31 is provided with planet wheel shaft extending portion 32, the diameter of planet wheel shaft extending portion 32 is less than the diameter of planet wheel shaft body 31, the other end of planet wheel shaft body 31 is provided with groove 33, groove 33 is for correcting direction when mounted, and the internal run-through of planet wheel shaft body 31 has oil duct 34, for realizing the circulation of lubricant oil.
As shown in Figure 5, in clutch, the inwall of hub 10 is provided with riveted joint groove 11, described riveted joint groove 11 is blind hole, riveted joint groove 11 is for coordinating with planet wheel shaft extending portion 32, during assembling, planet wheel shaft extending portion 32 is put into the riveted joint groove 11 of clutch hub 10, in planet wheel shaft 3 and clutch, hub 10 closely cooperates closely, efficiently avoid lubricant oil to run off from planet wheel shaft end face, and due to end wall thickness reduction, riveted joint is convenient, not only meet the function that planet wheel is large to demand for lubricating oil amount, also reduce assembling difficulty.
The assembly technology of described planet row comprises the following steps:
A. bearing 9 to be press fit in planet carrier and clutch in hub weld assembly 2;
B. two bearings 5 are placed in the axis hole of planet wheel 4 respectively, two thrust washers 6 are placed on respectively the two ends of planet wheel 4, composition planetary wheel component;
C. to assemble in planetary wheel component, planet wheel shaft 3 to planet carrier and clutch on hub weld assembly 2;
D. planet wheel shaft 3 to be riveted in planet carrier and clutch on hub weld assembly 2;
E. be placed in planet carrier and clutch in hub weld assembly 2 by 1 sun gear thrust washer, 7,1 sun gear thrust bearing, 8,1 sun gear thrust washer 7 successively, sun gear 1 to be sleeved in planet carrier and clutch on hub weld assembly 2.
What adopt when riveting in steps d is one end riveting method, only needs to rivet planet wheel shaft lower end, solve the problem of riveted joint planet carrier distortion like this, and riveting process is simple, reduces assembling difficulty, reduces cost.
The above is the citing of best mode for carrying out the invention, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (8)
1. an automatic transmission planet row, be characterised in that: described planet row comprises hub weld assembly (2) and planet wheel (4) in sun gear (1), planet carrier and clutch, in planet carrier and clutch, hub weld assembly (2) comprises hub (10) in the planet carrier and clutch that are welded to connect, and planet wheel (4) is arranged on hub in clutch (10) by planet wheel shaft (3).
2. a kind of automatic transmission planet row as claimed in claim 1, it is characterized in that: described planet wheel shaft (3) comprises planet wheel shaft body (31), one end of planet wheel shaft body (31) is provided with planet wheel shaft extending portion (32), and the diameter of planet wheel shaft extending portion (32) is less than the diameter of planet wheel shaft body (31);
In described clutch, the inwall of hub (10) is provided with the close-fitting riveted joint groove (11) with planet wheel shaft extending portion (32).
3. a kind of automatic transmission planet row as claimed in claim 2, is characterized in that: the other end of described planet wheel shaft body (31) is provided with the groove (33) for correcting direction when mounted.
4. a kind of automatic transmission planet row as claimed in claim 2, is characterized in that: be provided with bearing (9) in hub weld assembly (2) in described planet carrier and clutch;
Bearing (5) is provided with between described planet wheel (4) and planet wheel shaft (3);
Planet wheel thrust washer (6) is respectively equipped with between hub weld assembly (2) in the two ends of described planet wheel (4) and planet carrier and clutch.
5. a kind of automatic transmission planet row as claimed in claim 4, is characterized in that: be provided with two groups of sun gear thrust washers (7) between hub weld assembly (2) in described sun gear (1) and planet carrier and clutch;
Sun gear thrust bearing (8) is provided with between described two groups of sun gear thrust washers (7).
6. the assembly technology of a kind of automatic transmission planet row as claimed in claim 5, is characterized in that: described assembly technology comprises the following steps:
A., bearing (9) is installed;
B. planetary wheel component is assembled;
C. to assemble in planetary wheel component, planet wheel shaft (3) to planet carrier and clutch on hub weld assembly (2);
D. planet wheel shaft (3) is riveted with hub weld assembly (2) in planet carrier and clutch;
E. planet row is assembled.
7. the assembly technology of a kind of automatic transmission planet row as claimed in claim 5, it is characterized in that: in described step b, two bearings (5) are placed in the axis hole of planet wheel (4) respectively, two thrust washers (6) are placed on respectively the two ends of planet wheel (4), composition planetary wheel component.
8. the assembly technology of a kind of automatic transmission planet row as claimed in claim 5, it is characterized in that: be placed in planet carrier and clutch in hub weld assembly (2) by 1 sun gear thrust washer (7), 1 sun gear thrust bearing (8), 1 sun gear thrust washer (7) successively in described step e, sun gear (1) to be sleeved in planet carrier and clutch on hub weld assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611109.9A CN104389988A (en) | 2014-11-04 | 2014-11-04 | Planetary gear set for automatic transmission and assembling technology of planetary gear set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611109.9A CN104389988A (en) | 2014-11-04 | 2014-11-04 | Planetary gear set for automatic transmission and assembling technology of planetary gear set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389988A true CN104389988A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410611109.9A Pending CN104389988A (en) | 2014-11-04 | 2014-11-04 | Planetary gear set for automatic transmission and assembling technology of planetary gear set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389988A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707837A (en) * | 2018-12-21 | 2019-05-03 | 太原重工股份有限公司 | NW type planetary gear train assembly method |
| CN110125678A (en) * | 2019-05-31 | 2019-08-16 | 中国神华能源股份有限公司 | A kind of assembling tool, planetary gear train device and assemble method |
| CN110987425A (en) * | 2019-12-31 | 2020-04-10 | 盛瑞传动股份有限公司 | Method for testing riveting and releasing force of planet wheel shaft of planet row |
| CN116423211A (en) * | 2023-06-12 | 2023-07-14 | 盛瑞传动股份有限公司 | Planet row assembly assembling method |
-
2014
- 2014-11-04 CN CN201410611109.9A patent/CN104389988A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707837A (en) * | 2018-12-21 | 2019-05-03 | 太原重工股份有限公司 | NW type planetary gear train assembly method |
| CN110125678A (en) * | 2019-05-31 | 2019-08-16 | 中国神华能源股份有限公司 | A kind of assembling tool, planetary gear train device and assemble method |
| CN110987425A (en) * | 2019-12-31 | 2020-04-10 | 盛瑞传动股份有限公司 | Method for testing riveting and releasing force of planet wheel shaft of planet row |
| CN116423211A (en) * | 2023-06-12 | 2023-07-14 | 盛瑞传动股份有限公司 | Planet row assembly assembling method |
| CN116423211B (en) * | 2023-06-12 | 2023-10-03 | 盛瑞传动股份有限公司 | Planet row assembly assembling method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151119 Address after: 261061 Shandong high tech Zone, Weifang hi tech Industrial Development Zone, Rui Jie street, No. 518 Applicant after: Shengrui Transmission Corporation limited Address before: 261205 Shandong city of Weifang province high tech Zone East of Ying Wei An Lu Bao Xiang No. 436 Applicant before: Weifang Shengrui Power Science & Technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |