CN110985615A - Coaxial dual-input gearbox arrangement structure - Google Patents
Coaxial dual-input gearbox arrangement structure Download PDFInfo
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- CN110985615A CN110985615A CN201911409943.9A CN201911409943A CN110985615A CN 110985615 A CN110985615 A CN 110985615A CN 201911409943 A CN201911409943 A CN 201911409943A CN 110985615 A CN110985615 A CN 110985615A
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- gear
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- input
- hollow
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- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 51
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention provides a coaxial double-input gearbox arrangement structure, which enables two power sources and a speed changer to be conveniently and reliably connected and ensures that power output is not interrupted. It includes hollow input shaft of second and first input shaft, first input shaft runs through hollow inner chamber, the coaxial arrangement of the hollow input shaft of second, outside second power supply is connected to the input of the hollow input shaft of second, outside first power supply is connected to the input of first input shaft, the output of the hollow input shaft of second cover has second drive gear admittedly, and the output of first input shaft is rearmounted for second drive gear and is equipped with coupling synchronizer, output six and keep off the tooth in order, and the interval sets up between the output of first input shaft and the input of power output shaft, and power output shaft's input is provided with 4/6 fender synchronizer.
Description
Technical Field
The invention relates to the technical field of gearbox power structures, in particular to a coaxial double-input gearbox arrangement structure.
Background
In the process of arranging the gear boxes, the conventional automobile product for hybrid power or double electric input inevitably generates power interruption in the gear shifting process due to the conventional gear box structure, and the connecting structure of the two power sources and the transmission is complicated.
Disclosure of Invention
In order to solve the problems, the invention provides a coaxial dual-input gearbox arrangement structure, so that the connection between two power sources and a transmission is convenient and reliable, and the power output is not interrupted.
A coaxial dual input transmission arrangement characterized by: the double-input shaft comprises a second hollow input shaft and a first input shaft, the first input shaft penetrates through a hollow inner cavity of the second hollow input shaft and is coaxially arranged, an external second power source is connected with the input end of the second hollow input shaft, an external first power source is connected with the input end of the first input shaft, a second transmission gear is fixedly sleeved at the output end of the second hollow input shaft, the output end of the first input shaft is arranged at the rear position relative to the second transmission gear and is sequentially sleeved with a coupling synchronizer and an output six-gear tooth, the output end of the first input shaft and the input end of the power output shaft are arranged at intervals, the input end of the power output shaft is provided with an 4/6-gear synchronizer, one side of the 4/6-gear synchronizer, far away from the output six-gear tooth, is provided with an output four-gear tooth, the output four-gear sleeve is arranged at the corresponding position of the power output shaft, the power output shaft is further sequentially sleeved with an output five-gear, an output two-gear, an output three-gear, an output one-gear and an output reverse-gear, 2/5-gear synchronizers are arranged between the output five-gear and the output two-gear, 1/3-gear synchronizers are arranged between the output three-gear and the output one-gear, one side of the output reverse-gear is further provided with a reverse-gear synchronizer, the output four-gear synchronizer further comprises a second intermediate shaft, a second intermediate shaft transmission gear is arranged at the position of the second intermediate shaft corresponding to a second transmission gear, a first hollow intermediate shaft is further sleeved on the second intermediate shaft, a first transmission gear is sleeved on the position of the first hollow intermediate shaft corresponding to the output six-gear, and the axial direction of the first hollow intermediate shaft corresponds to the output four-gear of the output shaft, The positions of the five-gear output gear and the two-gear output gear are respectively fixedly sleeved with corresponding gear transmission gears, the positions, corresponding to the three-gear output gear, the one-gear output gear and the reverse gear output gear, of the second intermediate shaft, protruding out of the axial region of the first hollow intermediate shaft, are respectively sleeved with corresponding gear transmission gears, and the middle reverse gear is connected with the reverse gear output gear through an idler gear.
It is further characterized in that: the middle inverted teeth are sleeved at the tail end of the second intermediate shaft far away from the transmission teeth of the second intermediate shaft, and when the reverse gear is performed, power is transmitted to the output inverted teeth after being meshed with the idler teeth through the middle inverted teeth;
all gear output gears sleeved on the output shaft are sleeved on the output shaft through connecting shaft sleeves, so that the coupling output of power during output is ensured;
all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.
After the technical scheme is adopted, the second power source and the first power source carry out power input coaxially, a coupling synchronizer is arranged between a first transmission gear (output six-gear tooth) of the first input shaft and a second transmission gear of the second hollow input shaft, the power of the second power source and the power of the first power source are synchronously coupled and then output to a corresponding middle transmission gear and then transmitted to an output shaft by the coupling synchronizer under the synchronous meshing state of the first transmission gear (output six-gear tooth) and the second transmission gear, and gear output is carried out by selecting a corresponding gear; when the coupling synchronizer is in a disengaged state, the second power source is transmitted to the corresponding intermediate transmission gear through the second transmission gear, then transmitted to the output shaft, and gear output is performed by selecting the corresponding gear; the two power sources are connected with the transmission conveniently and reliably, and power coupling output can be selected or respectively output and then coupled and output on the output shaft, so that power output is not interrupted, and unpowered interrupted gear shifting is realized.
Drawings
FIG. 1 is a block diagram schematically illustrating the structure of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the output shaft 1, the second hollow input shaft 2, the first input shaft 3, the second transmission gear 4, the coupling synchronizer 5, the output six-gear tooth 6, the 4/6-gear synchronizer 7, the output four-gear tooth 8, the output five-gear tooth 9, the output two-gear tooth 10, the output three-gear tooth 11, the output one-gear tooth 12, the output reverse gear tooth 13, the 2/5-gear synchronizer 14, the 1/3-gear synchronizer 15, the reverse gear synchronizer 16, the second intermediate shaft 17, the second intermediate shaft transmission tooth 18, the first intermediate shaft transmission tooth 19, the middle reverse tooth 20, the idler tooth 21, the first hollow intermediate shaft 22 and the connecting shaft sleeve 23.
Detailed Description
A coaxial dual input transmission arrangement, see fig. 1: the double-input-shaft power output device comprises a double-input shaft and a power output shaft 1 which are coaxially arranged, wherein the double-input shaft comprises a second hollow input shaft 2 and a first input shaft 3, the first input shaft 3 penetrates through a hollow inner cavity of the second hollow input shaft 2 and is coaxially arranged, the input end of the second hollow input shaft 2 is connected with an external second power source, the input end of the first input shaft 3 is connected with an external first power source, the output end of the second hollow input shaft 2 is fixedly sleeved with a second transmission gear 4, the output end of the first input shaft 3 is arranged behind the second transmission gear 4 and is sequentially sleeved with a coupling synchronizer 5 and an output six-gear tooth 6, the output end of the first input shaft 3 and the input end of the power output shaft 1 are arranged at intervals, the input end of the power output shaft 1 is provided with an 4/6-gear synchronizer 7, one side, far away from the output six-gear tooth 6, of the 4/6, the output four-gear tooth 8 is sleeved at the corresponding position of the power output shaft 1, the power output shaft 1 is further sequentially sleeved with an output five-gear tooth 9, an output two-gear tooth 10, an output three-gear tooth 11, an output one-gear tooth 12 and an output reverse gear tooth 13, 2/5-gear synchronizers 14 are arranged between the output five-gear tooth 9 and the output two-gear tooth 10, 1/3-gear synchronizers 15 are arranged between the three-gear output gear 11 and the output one-gear tooth 12, one side of the output reverse gear tooth 13 is further provided with a reverse gear synchronizer 16, the output reverse gear synchronizer further comprises a second intermediate shaft 17, a second intermediate shaft transmission tooth 18 is arranged at the position of the second intermediate shaft 17 corresponding to the second transmission gear 4, a first hollow intermediate shaft 22 is further sleeved on the second intermediate shaft 17, a first intermediate shaft transmission tooth 19 is sleeved at the position of the first hollow intermediate shaft 22 corresponding to the output six-gear tooth 6, and the axial direction of the first hollow intermediate shaft 18 corresponds to the output four-gear, The positions of the five-output gear 9 and the second-output gear 10 are respectively fixedly sleeved with corresponding gear transmission gears, the positions, protruding out of the axial area of the first hollow intermediate shaft 22, of the second intermediate shaft 17, corresponding to the three-gear output gear 11, the first-output gear 12 and the second-output reverse gear 13 are respectively sleeved with corresponding gear transmission gears, and the middle reverse gear 20 is connected with the second-output reverse gear 13 through an idler gear 21. The transmission shaft corresponding to the idler gear 21 is arranged in a triangular relationship with the output shaft 1 and the second intermediate shaft 17 for transmission convenience, and the illustration in the figure is only used for expressing the transmission relationship.
The middle inverted teeth 20 are sleeved at the tail end of the second intermediate shaft 17 far away from the transmission teeth 18 of the second intermediate shaft, and when the reverse gear is performed, power is transmitted to the output inverted teeth 13 after being meshed with the idler teeth 18 through the middle inverted teeth 20;
all gear output gears sleeved on the output shaft 1 are sleeved on the output shaft 1 through a connecting shaft sleeve 23, so that the coupling output of power during output is ensured;
all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft 17 or the first hollow intermediate shaft 22.
In specific implementation, the synchronizer can be completely replaced by the meshing sleeve correspondingly.
In specific work, when the coupling synchronizer is closed leftwards, the second power source and the first power source can be coupled together, so that the first power source can realize transmission of all gears; when the coupling synchronizer is not closed, the power output of the second power source and the power output of the first power source are coupled at the output shaft, so that the transmission has no power interruption in the gear shifting process, for example, the first power source is connected to the second gear through the output six-gear tooth, the 2/5-gear synchronizer is connected to the right, and the first power source transmits torque in the second gear; the second power source is shifted into a first gear to the right through a normally meshed gear, 1/3 gear synchronizer, the second power source runs in the first gear, and the two powers are coupled on an output shaft; during gear shifting, the first power source firstly deviates from the 2/5 gear synchronizer and is engaged into the fourth gear, the second power source always outputs power in the process, then the second power source deviates from the first gear and is engaged into the third gear, and the first power source always outputs power in the process, so that unpowered interruption gear shifting is realized.
The arrangement of the gears in the specific embodiment is not limited to the specific implemented combination of the arrangement orders, and the arrangement orders of the gears are arranged according to the actual situation in the actual process.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A coaxial dual input transmission arrangement characterized by: the double-input shaft comprises a second hollow input shaft and a first input shaft, the first input shaft penetrates through a hollow inner cavity of the second hollow input shaft and is coaxially arranged, an external second power source is connected with the input end of the second hollow input shaft, an external first power source is connected with the input end of the first input shaft, a second transmission gear is fixedly sleeved at the output end of the second hollow input shaft, the output end of the first input shaft is arranged at the rear position relative to the second transmission gear and is sequentially sleeved with a coupling synchronizer and an output six-gear tooth, the output end of the first input shaft and the input end of the power output shaft are arranged at intervals, the input end of the power output shaft is provided with an 4/6-gear synchronizer, one side of the 4/6-gear synchronizer, far away from the output six-gear tooth, is provided with an output four-gear tooth, the output four-gear sleeve is arranged at the corresponding position of the power output shaft, the power output shaft is further sequentially sleeved with an output five-gear, an output two-gear, an output three-gear, an output one-gear and an output reverse-gear, 2/5-gear synchronizers are arranged between the output five-gear and the output two-gear, 1/3-gear synchronizers are arranged between the output three-gear and the output one-gear, one side of the output reverse-gear is further provided with a reverse-gear synchronizer, the output four-gear synchronizer further comprises a second intermediate shaft, a second intermediate shaft transmission gear is arranged at the position of the second intermediate shaft corresponding to a second transmission gear, a first hollow intermediate shaft is further sleeved on the second intermediate shaft, a first transmission gear is sleeved on the position of the first hollow intermediate shaft corresponding to the output six-gear, and the axial direction of the first hollow intermediate shaft corresponds to the output four-gear of the output shaft, The positions of the five-gear output gear and the two-gear output gear are respectively fixedly sleeved with corresponding gear transmission gears, the positions, corresponding to the three-gear output gear, the one-gear output gear and the reverse gear output gear, of the second intermediate shaft, protruding out of the axial region of the first hollow intermediate shaft, are respectively sleeved with corresponding gear transmission gears, and the middle reverse gear is connected with the reverse gear output gear through an idler gear.
2. The dual input coaxial transmission arrangement of claim 1, wherein: the middle inverted teeth are sleeved at the tail end of the second intermediate shaft far away from the transmission teeth of the second intermediate shaft.
3. The dual input coaxial transmission arrangement of claim 1, wherein: all gear output gears sleeved on the output shaft are sleeved on the output shaft through connecting shaft sleeves.
4. The dual input coaxial transmission arrangement of claim 1, wherein: all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409943.9A CN110985615A (en) | 2019-12-31 | 2019-12-31 | Coaxial dual-input gearbox arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409943.9A CN110985615A (en) | 2019-12-31 | 2019-12-31 | Coaxial dual-input gearbox arrangement structure |
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| Publication Number | Publication Date |
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| CN110985615A true CN110985615A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911409943.9A Pending CN110985615A (en) | 2019-12-31 | 2019-12-31 | Coaxial dual-input gearbox arrangement structure |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010008101A1 (en) * | 2010-02-15 | 2011-08-18 | Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 | Double clutch transmission for motor vehicle, particularly passenger cars, has two axially arranged input shafts and output shaft that is arranged to input shafts |
| WO2013020836A1 (en) * | 2011-08-05 | 2013-02-14 | Getrag Ford Transmissions Gmbh | Manual gearbox for a motor vehicle |
| CN103332102A (en) * | 2013-07-04 | 2013-10-02 | 重庆大学 | Single-motor hybrid power driving system based on double-clutch automatic gearbox |
| CN203488640U (en) * | 2013-09-24 | 2014-03-19 | 安徽江淮汽车股份有限公司 | Longitudinally arranged double-clutch gearbox transmission device |
| CN103821882A (en) * | 2014-03-04 | 2014-05-28 | 东风商用车有限公司 | Double middle shaft transmission structure with hollow shaft synchronism and shifting method thereof |
| CN104972887A (en) * | 2015-07-07 | 2015-10-14 | 安徽纽恩卡自控科技有限公司 | Automobile hybrid driving system |
| CN105485264A (en) * | 2015-12-28 | 2016-04-13 | 北京理工大学 | Parallel hybrid power gearbox |
| CN106965664A (en) * | 2017-04-28 | 2017-07-21 | 苏州绿控传动科技有限公司 | A kind of single motor hybrid power system for automobile |
| CN207261585U (en) * | 2017-08-09 | 2018-04-20 | 上海汽车变速器有限公司 | Double eight gear speed transmissions of clutch |
| US20180266519A1 (en) * | 2016-03-31 | 2018-09-20 | Antonio Potignano | Automatic manual transmission and method for the same |
| CN208457124U (en) * | 2018-05-08 | 2019-02-01 | 格特拉克（江西）传动系统有限公司 | A kind of manual transmission shaft system arrangement structure |
| CN212055695U (en) * | 2019-12-31 | 2020-12-01 | 苏州绿控传动科技股份有限公司 | Coaxial dual-input gearbox arrangement structure |
-
2019
- 2019-12-31 CN CN201911409943.9A patent/CN110985615A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010008101A1 (en) * | 2010-02-15 | 2011-08-18 | Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 | Double clutch transmission for motor vehicle, particularly passenger cars, has two axially arranged input shafts and output shaft that is arranged to input shafts |
| WO2013020836A1 (en) * | 2011-08-05 | 2013-02-14 | Getrag Ford Transmissions Gmbh | Manual gearbox for a motor vehicle |
| CN103332102A (en) * | 2013-07-04 | 2013-10-02 | 重庆大学 | Single-motor hybrid power driving system based on double-clutch automatic gearbox |
| CN203488640U (en) * | 2013-09-24 | 2014-03-19 | 安徽江淮汽车股份有限公司 | Longitudinally arranged double-clutch gearbox transmission device |
| CN103821882A (en) * | 2014-03-04 | 2014-05-28 | 东风商用车有限公司 | Double middle shaft transmission structure with hollow shaft synchronism and shifting method thereof |
| CN104972887A (en) * | 2015-07-07 | 2015-10-14 | 安徽纽恩卡自控科技有限公司 | Automobile hybrid driving system |
| CN105485264A (en) * | 2015-12-28 | 2016-04-13 | 北京理工大学 | Parallel hybrid power gearbox |
| US20180266519A1 (en) * | 2016-03-31 | 2018-09-20 | Antonio Potignano | Automatic manual transmission and method for the same |
| CN106965664A (en) * | 2017-04-28 | 2017-07-21 | 苏州绿控传动科技有限公司 | A kind of single motor hybrid power system for automobile |
| CN207261585U (en) * | 2017-08-09 | 2018-04-20 | 上海汽车变速器有限公司 | Double eight gear speed transmissions of clutch |
| CN208457124U (en) * | 2018-05-08 | 2019-02-01 | 格特拉克（江西）传动系统有限公司 | A kind of manual transmission shaft system arrangement structure |
| CN212055695U (en) * | 2019-12-31 | 2020-12-01 | 苏州绿控传动科技股份有限公司 | Coaxial dual-input gearbox arrangement structure |
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