CN110735888A - Two-shaft integrated multi-gear gearbox - Google Patents
Two-shaft integrated multi-gear gearbox Download PDFInfo
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- CN110735888A CN110735888A CN201910967219.1A CN201910967219A CN110735888A CN 110735888 A CN110735888 A CN 110735888A CN 201910967219 A CN201910967219 A CN 201910967219A CN 110735888 A CN110735888 A CN 110735888A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 202
- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000011160 research Methods 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
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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
- F16H2200/0078—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratio comprising twelve or more forward speeds
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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
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
Abstract
The invention discloses an two-shaft integrated multi-gear gearbox, which comprises a shell, wherein a main gear section and an auxiliary gear section are arranged in the shell, the main gear section comprises a main gear input shaft and a main gear output shaft, a final gear driving gear is rotatably arranged on the main gear section, a final gear driven gear is fixedly arranged on the main gear output shaft, a final gear synchronizer is fixedly arranged on the main gear input shaft, the auxiliary gear section comprises an auxiliary gear transmission shaft and an auxiliary gear output shaft, two-speed synchronizers, a second-speed driven gear and two-speed transmission driving gears are sequentially arranged on the auxiliary gear transmission shaft, the two-speed synchronizers can be synchronized with the final gear driving gear or the second-speed driven gear, a second-speed driving gear is fixedly arranged on the main gear output shaft, a third-speed synchronizer and the two-speed transmission driven gears are sequentially and fixedly arranged on the auxiliary gear output shaft, the third-speed synchronizer can be synchronized with the main gear output shaft.
Description
Technical Field
The invention relates to gearboxes, in particular to a two-shaft integrated multi-gear gearbox.
Background
The tractor gearbox has the functions of changing the total speed ratio of the transmission system, changing the speed and driving force of the tractor, realizing forward and reverse movement and the like, so that the tractor has good productivity, economy and working convenience, and meanwhile, the tractor gearbox can output power into other driving power through the transfer case device.
China is a big country for producing and using tractors, and tractors are kept in the top of the world. Based on a plurality of application fields such as current tractor transportation operation, field operation, the design research of tractor gearbox develops to the direction such as more gear transform, less volume, better transmission efficiency and better shift control. Its double-shaft gearbox is gaining favor because of small, high transmission efficiency and easily arrange more gears.
At present, a gear shifting mode of multi-section speed change combination of a main speed change section, an auxiliary speed change section and the like is commonly adopted in a double-shaft tractor gearbox, for example, the invention patent application with the application number of 201711154512.3 named as gears of 12+12 gears and harvesting machinery thereof discloses double-shaft gearboxes adopting the main speed change section, wherein the main speed change section is provided with a main speed change input shaft and a main speed change output shaft, the auxiliary speed change section is provided with an auxiliary speed change input shaft and an auxiliary speed change output shaft, four main gear pairs capable of respectively and independently transmitting are arranged between the main speed change input shaft and the main speed change output shaft, main and auxiliary connecting gear pairs capable of respectively and independently transmitting are arranged between the main speed change output shaft and the auxiliary speed change input shaft, two auxiliary gear pairs capable of respectively and independently transmitting are arranged between the auxiliary speed change output shaft and the auxiliary speed change output shaft, the auxiliary speed change section can respectively realize low-speed transmission and medium-speed transmission, and high-speed transmission change can be realized when the main speed output shaft and the auxiliary speed change output shaft are directly connected.
However, the above structure needs to arrange seven gear pairs to realize the twelve-gear speed change function, and the whole structure is complex, which not only has the disadvantage of large volume, but also has high cost and complex processing and assembling.
Disclosure of Invention
The invention aims to solve the technical problem of providing two-shaft integrated multi-gear gearboxes which can realize twelve-gear speed change, have smaller volume and lower cost and can simplify the processing and assembling operation.
In order to solve the technical problems, the technical scheme of the invention is as follows: many grades of gearboxes of diaxon integrated form, including the casing, rotate on the casing and install power input shaft, its characterized in that: a main speed change section and an auxiliary speed change section are arranged in the shell; the main speed change section comprises a main speed change input shaft and a main speed change output shaft which are rotatably arranged in the shell, and a front main gear speed change device is arranged between the main speed change input shaft and the main speed change output shaft; a final gear driving gear is rotatably mounted on the main speed change section close to the auxiliary speed change section, a final gear driven gear which is normally meshed with the final gear driving gear is fixedly arranged on the main speed change output shaft, and a final gear synchronizer corresponding to the final gear driving gear is fixedly mounted on the main speed change input shaft; the auxiliary transmission section comprises an auxiliary transmission shaft and an auxiliary transmission output shaft which are rotatably arranged in the shell, the auxiliary transmission shaft is coaxially arranged with the main transmission input shaft, and the auxiliary transmission output shaft is coaxially arranged with the main transmission output shaft; the auxiliary speed change transmission shaft is sequentially provided with a two-speed synchronizer, a second-speed driven gear and a two-speed transmission driving gear, the two-speed synchronizer and the two-speed transmission driving gear are respectively and fixedly arranged on the auxiliary speed change transmission shaft, the second-speed driven gear is rotatably arranged on the auxiliary speed change output shaft, and the two-speed synchronizer can be synchronous with the final gear driving gear or the second-speed driven gear; a second-speed driving gear which is normally meshed with the second-speed driven gear is fixedly arranged on the main transmission output shaft; a third-speed synchronizer and a two-speed transmission driven gear are sequentially and fixedly arranged on the auxiliary variable-speed output shaft, and the third-speed synchronizer can be synchronous with the main variable-speed output shaft; the power transmission device comprises a casing, a power input shaft, a power output shaft, a power take-off clutch, a PTO transmission shaft and a PTO output device, wherein the casing is internally and rotatably provided with the PTO clutch, the input end of the PTO clutch is fixedly connected with the power input shaft, the output end of the PTO clutch is fixedly connected with the PTO transmission shaft, and the PTO transmission shaft.
As a preferred technical solution, the front main gear transmission device includes gears of driving gear, second gear of driving gear, third gear of driving gear and third gear of synchronizer that are sequentially disposed on the main transmission input shaft, the gears of driving gear, the second gear of driving gear and the third gear of synchronizer are respectively and fixedly disposed on the main transmission input shaft, the third gear of driving gear is rotatably mounted on the main transmission input shaft, the main transmission output shaft is sequentially disposed with gears of driven gear, gears of synchronizer, second gear of driven gear and third gear of driven gear, the gears of second gear of synchronizer and the third gear of driven gear are respectively and fixedly disposed on the main transmission output shaft, and the gears of driven gear and the second gear of driven gear are respectively and rotatably mounted on the main transmission output shaft.
As a preferred technical solution, the third gear synchronizer doubles as the last gear synchronizer.
As a preferred technical scheme, two ends of the auxiliary transmission output shaft are rotatably connected with the shell, and the auxiliary transmission output shaft is sequentially provided with the third-speed synchronizer and the two-speed transmission driven gear through splines; the main transmission output shaft is arranged in a hollow mode, and the main transmission output shaft is sleeved on the auxiliary transmission output shaft and is connected with the auxiliary transmission output shaft in a relative rotation mode.
As the preferred technical scheme, both ends of the main speed change input shaft are rotatably arranged in the shell, the auxiliary speed change transmission shaft is arranged in a hollow mode, and the auxiliary speed change transmission shaft is sleeved on the main speed change input shaft and is rotatably connected with the main speed change input shaft.
As the preferred technical scheme, the main transmission input shaft is arranged in a hollow mode, and the PTO transmission shaft penetrates through an inner hole of the main transmission input shaft and is connected with the PTO output device.
Preferably, the PTO clutch is a wet clutch.
Preferably, the PTO output device includes a PTO output shaft rotatably mounted on the housing, the PTO transmission shaft is fixedly provided with a PTO -stage driving gear and a PTO secondary driving gear, the PTO output shaft is rotatably mounted with a PTO -stage driven gear and a PTO secondary driven gear respectively, the PTO -stage driven gear is in constant mesh with the PTO -stage driving gear, the PTO secondary driven gear is in constant mesh with the PTO secondary driving gear, and a PTO output synchronizer is fixedly disposed on the PTO output shaft between the PTO -stage driven gear and the PTO secondary driven gear.
As a preferable technical scheme, a synchronous inverter is arranged between the power input shaft and the main speed change input shaft.
As a preferred technical scheme, the synchronous reverser comprises a shuttle-shaped gear input shaft which is rotatably installed in the shell, a power driving gear is fixedly arranged at the end part of the power input shaft, which extends into the shell, a power driven gear which is normally meshed with the power driving gear is fixedly arranged at the end of the shuttle-shaped gear input shaft, a forward gear driving gear and a reverse gear driving gear are rotatably installed at the other end of the shuttle-shaped gear input shaft, a shuttle-shaped gear synchronizer is fixedly arranged between the forward gear driving gear and the reverse gear driving gear on the shuttle-shaped gear input shaft, a forward gear driven gear and a reverse gear driven gear are fixedly arranged on the main speed change input shaft, the forward gear driven gear is normally meshed with the forward gear driving gear, and a reverse gear idler which is normally meshed with the reverse gear driving gear and the reverse gear driven gear is rotatably installed in the shell.
When the two-speed synchronizer and the second-speed driven gear are synchronous, the second-speed driven gear and the second-speed driven gear drive shaft to drive, the auxiliary transmission gear and the third-speed driven gear drive shaft to drive, and the auxiliary transmission gear output shaft to drive, and the auxiliary transmission gear is also in synchronous connection with the last-speed driven gear, so that the final gear volume of the gear-shifting device can be reduced obviously.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the main and range sections of the present invention.
In the figure, the transmission comprises a 1-shell, a 11-main transmission section, a 12-auxiliary transmission section, a 13-power input shaft, a 14-PTO clutch, a 15-PTO transmission shaft, a 2-main transmission input shaft, a 21- -gear driving gear, a 22-second-gear driving gear, a 23-third-gear driving gear, a 24-third-gear synchronizer, a 25-final-gear driving gear, a 3-main transmission output shaft, a 31- -gear driven gear, a 32- -second-gear synchronizer, a 33-second-gear driven gear, a 34-third-gear driven gear, a 35-final-gear driven gear, a 36-second-gear driving gear, a 4-auxiliary transmission shaft, a 41-two-gear synchronizer, a 42-second-gear driven gear, a 43-two-gear transmission driving gear, a 5-auxiliary transmission output shaft, a 51-third-gear synchronizer, a 52-two-gear transmission driven gear, a 6-gear shifting clutch, a 7-synchronous reverse gear, a shuttle 71-second-gear input shaft, a 72-power driving gear, a 74-forward-gear driving gear, a 75-PTO driven gear, a 7-PTO output shaft, a 7-synchronous reverse gear, a shuttle type output shaft, a 7-driven gear, a 7-PTO device, a 80-PTO device, a 2-driven gear, a 3-driven gear.
Detailed Description
The present invention is further set forth in the following detailed description, taken in conjunction with the accompanying drawings and the embodiments, wherein exemplary embodiments of the present invention are described by way of illustration only, it will be understood by those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention.
As shown in fig. 1 and 2, the two-shaft integrated multi-gear transmission comprises a housing 1, wherein a power input shaft 13 is rotatably mounted on the housing 1, and the power input shaft 13 is in power connection with an engine through a shifting clutch 6.
A main transmission section 11 and an auxiliary transmission section 12 are provided in the housing 1. In the present embodiment, twelve speed transmissions are used for illustration, the main transmission section 11 mainly has a main gear and a fourth gear, and the auxiliary transmission section 12 shifts gears for each group of the fourth gear and then performs three further transmissions, so as to form twelve speed transmissions of 4 × 3.
The main transmission section 11 includes a main transmission input shaft 2 and a main transmission output shaft 3 rotatably mounted in the housing 1, with the axes of the main transmission input shaft 2 and the main transmission output shaft 3 being arranged in parallel, of course. And a front main gear speed change device is arranged between the main speed change input shaft 2 and the main speed change output shaft 3. A final gear driving gear 25 is rotatably mounted on the main transmission section 11 near the auxiliary transmission section 12, a final gear driven gear 35 normally engaged with the final gear driving gear 25 is fixedly arranged on the main transmission output shaft 3, and a final gear synchronizer corresponding to the final gear driving gear 25 is fixedly mounted on the main transmission input shaft 2.
The combination of the final drive gear 25, the final driven gear 35 and the final synchronizer forms a structure for the final gear shift of the main transmission section 11, and for this embodiment, a structure for the fourth gear shift of the main transmission section 11 is formed, the front main transmission device is a structure for the remaining gear shifts in the main transmission section 11, and this device generally consists of a plurality of gear pairs and synchronizers, this embodiment is explained with a twelve-gear shift, first, the front main transmission device of this embodiment includes th drive gear 21, second drive gear 22, third drive gear 23 and third synchronizer 24 sequentially disposed on the main transmission input shaft 2, the th drive gear 21, the second drive gear 22 and the third synchronizer 24 are respectively and fixedly disposed on the main transmission input shaft 2, wherein the th drive gear 21 is a body machined on the main spline input shaft 2, and the second drive gear 22 and the third synchronizer 24 are fixedly disposed on the main transmission input shaft 2 through a needle roller bearing 3532, the second drive gear 22 and the third synchronizer 24 are fixedly disposed on the main spline input shaft 3532, the main transmission input shaft is also fixedly disposed through a needle bearing 3532, the needle roller bearing 3532 and a needle bearing 3532 is disposed on the main transmission input shaft 35, the main transmission shaft 35 and a needle bearing 3532 is fixedly disposed on the main transmission input shaft, the main transmission shaft 3532 and a needle bearing 3532, the rotary shaft is also disposed on the main transmission shaft 35.
The range section 12 includes a range shaft 4 and a range output shaft 5 rotatably mounted in the housing 1, the range shaft 4 being disposed coaxially with the main transmission input shaft 2 such that the range shaft 4 and the main transmission input shaft 2 form the th axle of the transmission structure of the present embodiment, and the range output shaft 5 being disposed coaxially with the main transmission output shaft 3 such that the range output shaft 5 and the main transmission output shaft 3 form the second axle of the transmission structure of the present embodiment.
The auxiliary speed change transmission shaft 4 is sequentially provided with a two-speed synchronizer 41, a second-speed driven gear 42 and a two-speed transmission driving gear 43, the two-speed synchronizer 41 and the two-speed transmission driving gear 43 are respectively and fixedly arranged on the auxiliary speed change transmission shaft 4, the two-speed synchronizer 41 is fixedly arranged on the auxiliary speed change transmission shaft 4 by adopting a spline structure, the two-speed transmission driving gear 43 is directly integrally machined on the auxiliary speed change transmission shaft 4, the second-speed driven gear 42 is rotatably arranged on the auxiliary speed change output shaft 5 by adopting a needle bearing, the two-speed synchronizer 41 can be synchronized with the tail gear driving gear 25 or the second-speed driven gear 42, the main speed change output shaft 3 is fixedly provided with a second-speed driving gear 36 which is normally meshed with the second-speed driven gear 42, the fixed arrangement also adopts a integrally machining mode, the auxiliary speed change output shaft 5 is sequentially and is fixedly provided with a third-speed synchronizer 51 and a two-speed transmission driven gear 52, and the third-speed synchronizer 51 can be synchronized with the main speed change output shaft 3.
In this embodiment, both ends of the auxiliary transmission output shaft 5 are rotatably connected with the housing 1, the rotatable connection is a known technology and is not repeated herein, the auxiliary transmission output shaft 5 is sequentially provided with the third-speed synchronizer 51 and the two-speed transmission driven gear 52 in a spline manner, the main transmission output shaft 3 is arranged in a hollow manner, the main transmission output shaft 3 is sleeved on the auxiliary transmission output shaft 5 and is relatively rotatably connected with the auxiliary transmission output shaft 5, the rotatable connection is realized through a needle bearing, the overall stability of the second shaft of the speed change structure of this embodiment can be obviously improved by connecting both ends of the shaft with another shaft in a hollow sleeved manner, and certainly, the end of the auxiliary transmission output shaft 5 is provided with a gear for power output.
Similarly, the two ends of the main variable-speed input shaft 2 are rotatably installed in the shell 1, the auxiliary variable-speed transmission shaft 4 is arranged in a hollow mode, and the auxiliary variable-speed transmission shaft 4 is sleeved on the main variable-speed input shaft 2 and is rotatably connected with the main variable-speed input shaft 2.
In this embodiment, the transmission ratio between the final driven gear 35 and the final driving gear 25 is greater than the transmission ratio between the second-speed driving gear 36 and the second-speed driven gear 42, so that the present embodiment uses the second-speed driving gear 36 and the second-speed driven gear 42 as a low-speed transmission when they are in transmission, uses the final driven gear 35 and the final driving gear 25 as a medium-speed transmission when they are in transmission, and uses the third-speed synchronizer 51 as a high-speed transmission when it is synchronized with the main transmission output shaft 3.
Based on the above structure, the twelve-speed shift principle of the present embodiment is:
the power transmission route is that the combination of the main transmission output shaft 3 → gear, two gears, three gears or the last gear → the main transmission output shaft 3 → the second speed driving gear 36 → the second speed driven gear 42 → the auxiliary transmission drive shaft 4 → the two-speed transmission driving gear 43 → the two-speed transmission driven gear 52 → the auxiliary transmission output shaft 5;
at the intermediate speed, the two-speed synchronizer 41 is synchronized with the final gear driving gear 25, the final gear driving gear 25 can synchronously rotate with the auxiliary transmission shaft 4, and the power transmission route is that a main transmission output shaft 3 → , a combination of two gears, three gears or final gears → a main transmission output shaft 3 → a final gear driven gear 35 → a final gear driving gear 25 → an auxiliary transmission shaft 4 → a two-speed transmission driving gear 43 → a two-speed transmission driven gear 52 → an auxiliary transmission output shaft 5, wherein when the main transmission section 11 is in the fourth gear, the three-speed synchronizer 24 is equal to the synchronization of the final gear driving gear 25, and the main transmission output shaft 3 only rotates along with the rotation without the transmission function, but can be regarded as the total ratio of the main transmission input shaft 2 transmitting to the main transmission output shaft 3 and then transmitting to the auxiliary transmission shaft 4 being 1;
the high speed is that the two-speed synchronizer 41 is not synchronized with any gear, the third-speed synchronizer 51 is synchronized with the main transmission output shaft 3, the auxiliary transmission output shaft 5 directly rotates synchronously with the main transmission output shaft 3, and the power transmission route is that the main transmission output shaft 3 → gear, two gears, three gears or the combination of the last gear → the main transmission output shaft 3 → the third-speed synchronizer 51 → the auxiliary transmission output shaft 5.
In the present embodiment, the transmission ratio of the -speed driving gear 21 and the -speed driven gear 31 is s1, the transmission ratio of the second-speed driving gear 22 and the second-speed driven gear 33 is s2, the transmission ratio of the third-speed driving gear 23 and the third-speed driven gear 34 is s3, and the transmission ratio of the last-speed driving gear 25 and the last-speed driven gear 35 is s4, then the transmission ratio from the last-speed driven gear 35 to the last-speed driving gear 25 at a medium speed is 1/s4, the transmission ratio from the second-speed driving gear 36 to the second-speed driven gear 42 is sA, and the transmission ratio from the two-speed driving gear 43 to the two-speed driven gear 52 is sB, so that a twelve-speed transmission ratio formed in the present embodiment is as shown in the following table:
| low speed | s1*sA*sB | s2*sA*sB | s3*sA*sB | s4*sA*sB |
| Medium speed | s1*(1/s4)*sB | s2*(1/s4)*sB | s3*(1/s4)*sB | s4*(1/s4)*sB |
| High speed | s1 | s2 | s3 | s4 |
In addition, in the present embodiment, the PTO clutch 14 is rotatably mounted in the housing 1, the input end of the PTO clutch 14 is fixedly connected to the power input shaft 13, the output end of the PTO clutch 14 is fixedly connected to the PTO transmission shaft 15, and the PTO transmission shaft 15 is connected to the PTO output device 8. the power connection of the PTO output device 8 can be easily cut off by the PTO clutch 14, so that the power restriction of the PTO output device 8 is reduced, the shift clutch 6 is easily disengaged, and the shift operation between the twelve-speed transmission and the forward and backward shift operation are more time-saving and labor-saving.
As technical solutions, the PTO output device 8 includes a PTO output shaft 81 rotatably mounted on the housing 1, the PTO transmission shaft 15 is fixedly provided with a PTO -stage driving gear 82 and a PTO secondary driving gear 84, the PTO output shaft 81 is rotatably mounted with a PTO -stage driven gear 83 and a PTO secondary driven gear 85 respectively, the PTO -stage driven gear 83 is in constant mesh with the PTO -stage driving gear 82, the PTO secondary driven gear 85 is in constant mesh with the PTO secondary driving gear 84, and a PTO output synchronizer 86 is fixedly disposed on the PTO output shaft 81 between the PTO -stage driven gear 83 and the PTO secondary driven gear 85.
A synchronous inverter 7 is arranged between the power input shaft 13 and the main speed change input shaft 2, and the synchronous inverter 7 is used for switching between forward and reverse.
The synchronous inverter 7 includes a shuttle input shaft 71 rotatably installed in the housing 1, a power driving gear 72 is fixedly installed at an end of the power input shaft 13 extending into the housing 1, a power driven gear 73 normally engaged with the power driving gear 72 is fixedly installed at an end of the shuttle input shaft 71, a forward driving gear 74 and a reverse driving gear 76 are rotatably installed at another end of the shuttle input shaft 71, a shuttle synchronizer 79 is fixedly installed between the forward driving gear 74 and the reverse driving gear 76 on the shuttle input shaft 71, a forward driven gear 75 and a reverse driven gear 77 are fixedly installed on the main transmission input shaft 2, the forward driven gear 75 is normally engaged with the forward driving gear 74, and a reverse idler gear 78 normally engaged with the reverse driving gear 76 and the reverse driven gear 77 is rotatably installed in the housing 1.
In the embodiment, the gear pair of the final gear driving gear 25 and the final gear driven gear 35 forms a common gear pair, that is, the forward direction can be used as the gear connection of the fourth gear, and the reverse direction can be used as the variable speed connection of the medium speed, so that the twelve-gear variable speed output can be realized in the embodiment, compared with the prior art, gear sets of gear pairs are omitted, the overall structure is simplified, the length of two shafts is effectively shortened, the volume of the gearbox is effectively reduced, the structure is simplified, the processing and assembly operation and the use number of parts can be obviously simplified, and the cost is reduced.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are only illustrative of the principles of the present invention, but that various changes and modifications can be made without departing from the spirit and scope of the present invention, such as the front main gear shifting device is designed to be two-speed and four-speed and to realize nine-speed and fifteen-speed shifting, respectively, and such changes and modifications are within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Many grades of gearboxes of diaxon integrated form, including the casing, rotate on the casing and install power input shaft, its characterized in that: a main speed change section and an auxiliary speed change section are arranged in the shell;
the main speed change section comprises a main speed change input shaft and a main speed change output shaft which are rotatably arranged in the shell, and a front main gear speed change device is arranged between the main speed change input shaft and the main speed change output shaft; a final gear driving gear is rotatably mounted on the main speed change section close to the auxiliary speed change section, a final gear driven gear which is normally meshed with the final gear driving gear is fixedly arranged on the main speed change output shaft, and a final gear synchronizer corresponding to the final gear driving gear is fixedly mounted on the main speed change input shaft;
the auxiliary transmission section comprises an auxiliary transmission shaft and an auxiliary transmission output shaft which are rotatably arranged in the shell, the auxiliary transmission shaft is coaxially arranged with the main transmission input shaft, and the auxiliary transmission output shaft is coaxially arranged with the main transmission output shaft; the auxiliary speed change transmission shaft is sequentially provided with a two-speed synchronizer, a second-speed driven gear and a two-speed transmission driving gear, the two-speed synchronizer and the two-speed transmission driving gear are respectively and fixedly arranged on the auxiliary speed change transmission shaft, the second-speed driven gear is rotatably arranged on the auxiliary speed change output shaft, and the two-speed synchronizer can be synchronous with the final gear driving gear or the second-speed driven gear; a second-speed driving gear which is normally meshed with the second-speed driven gear is fixedly arranged on the main transmission output shaft; a third-speed synchronizer and a two-speed transmission driven gear are sequentially and fixedly arranged on the auxiliary variable-speed output shaft, and the third-speed synchronizer can be synchronous with the main variable-speed output shaft;
the power transmission device comprises a casing, a power input shaft, a power output shaft, a power take-off clutch, a PTO transmission shaft and a PTO output device, wherein the casing is internally and rotatably provided with the PTO clutch, the input end of the PTO clutch is fixedly connected with the power input shaft, the output end of the PTO clutch is fixedly connected with the PTO transmission shaft, and the PTO transmission shaft.
2. The two-shaft integrated multi-gear transmission as claimed in claim 1, wherein said front main gear shifting device comprises gears of driving gear, second gear of driving gear, third gear of driving gear and third gear of synchronizer sequentially disposed on said main gear input shaft, said gears of driving gear, said second gear of driving gear and said third gear of synchronizer are respectively fixedly disposed on said main gear input shaft, said third gear of driving gear is rotatably mounted on said main gear input shaft, said main gear output shaft is sequentially disposed with gears of driven gear, gears of synchronizer, second gear of driven gear and third gear of driven gear, said gears of second gear of synchronizer and said third gear of driven gear are respectively fixedly disposed on said main gear output shaft, said gears of driven gear and said second gear of driven gear are respectively rotatably mounted on said main gear output shaft.
3. The two-axis integrated multiple speed transmission of claim 2, wherein: the third gear synchronizer also serves as the last gear synchronizer.
4. The two-axis integrated multiple speed transmission of claim 1, wherein: the two ends of the auxiliary variable-speed output shaft are rotatably connected with the shell, and the third-speed synchronizer and the two-speed transmission driven gear are sequentially arranged on the auxiliary variable-speed output shaft through splines; the main transmission output shaft is arranged in a hollow mode, and the main transmission output shaft is sleeved on the auxiliary transmission output shaft and is connected with the auxiliary transmission output shaft in a relative rotation mode.
5. The two-axis integrated multiple speed transmission of claim 1, wherein: the two ends of the main speed change input shaft are rotatably arranged in the shell, the auxiliary speed change transmission shaft is arranged in a hollow mode, and the auxiliary speed change transmission shaft is sleeved on the main speed change input shaft and is rotatably connected with the main speed change input shaft.
6. The two-axis integrated multiple speed transmission of claim 5, wherein: the main transmission input shaft is arranged in a hollow mode, and the PTO transmission shaft penetrates through an inner hole of the main transmission input shaft to be connected with the PTO output device.
7. The two-axis integrated multiple speed transmission of claim 1, wherein: the PTO clutch is a wet clutch.
8. The two-shaft integrated multi-gear transmission box according to claim 1, wherein the PTO output device comprises a PTO output shaft rotatably mounted on the housing, a PTO -stage driving gear and a PTO secondary driving gear are fixedly arranged on the PTO transmission shaft, a PTO -stage driven gear and a PTO secondary driven gear are respectively rotatably mounted on the PTO output shaft, the PTO -stage driven gear is in constant meshing arrangement with the PTO -stage driving gear, the PTO secondary driven gear is in constant meshing arrangement with the PTO secondary driving gear, and a PTO output synchronizer is fixedly arranged on the PTO output shaft between the PTO -stage driven gear and the PTO secondary driven gear.
9. A two-axis integrated multi-speed transmission as claimed in any of claims 1 to 8 to wherein a synchronous inverter is provided between said power input shaft and said main shift input shaft.
10. The two-shaft integrated multi-gear transmission of claim 9, wherein the synchronous reverser comprises a shuttle input shaft rotatably mounted in the housing, a power driving gear is fixedly arranged at an end of the power input shaft extending into the housing, a power driven gear normally engaged with the power driving gear is fixedly arranged at end of the shuttle input shaft, a forward driving gear and a reverse driving gear are rotatably mounted at the other end of the shuttle input shaft, a shuttle synchronizer is fixedly arranged between the forward driving gear and the reverse driving gear on the shuttle input shaft, a forward driven gear and a reverse driven gear are fixedly arranged on the main transmission input shaft, the forward driven gear is normally engaged with the forward driving gear, and a reverse idler gear normally engaged with the reverse driving gear and the reverse driven gear is rotatably mounted in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910967219.1A CN110735888A (en) | 2019-10-12 | 2019-10-12 | Two-shaft integrated multi-gear gearbox |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910967219.1A CN110735888A (en) | 2019-10-12 | 2019-10-12 | Two-shaft integrated multi-gear gearbox |
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| CN110735888A true CN110735888A (en) | 2020-01-31 |
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| CN201910967219.1A Pending CN110735888A (en) | 2019-10-12 | 2019-10-12 | Two-shaft integrated multi-gear gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673772A (en) * | 2022-05-30 | 2022-06-28 | 山东时利和精工机械有限公司 | Shuttle type gear shifting gearbox |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000234654A (en) * | 1999-02-17 | 2000-08-29 | Aisin Ai Co Ltd | Transmission |
| CN201953921U (en) * | 2010-12-15 | 2011-08-31 | 烟台市东汽农业装备有限公司 | Transmission |
| EP2799739A1 (en) * | 2013-02-11 | 2014-11-05 | Tremec | Dual clutch transmission |
| CN208457125U (en) * | 2018-07-12 | 2019-02-01 | 雷沃重工股份有限公司 | Gearbox and tractor transmission system |
| CN211145248U (en) * | 2019-10-12 | 2020-07-31 | 山东五征集团有限公司 | Two-shaft integrated multi-gear gearbox |
-
2019
- 2019-10-12 CN CN201910967219.1A patent/CN110735888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000234654A (en) * | 1999-02-17 | 2000-08-29 | Aisin Ai Co Ltd | Transmission |
| CN201953921U (en) * | 2010-12-15 | 2011-08-31 | 烟台市东汽农业装备有限公司 | Transmission |
| EP2799739A1 (en) * | 2013-02-11 | 2014-11-05 | Tremec | Dual clutch transmission |
| CN208457125U (en) * | 2018-07-12 | 2019-02-01 | 雷沃重工股份有限公司 | Gearbox and tractor transmission system |
| CN211145248U (en) * | 2019-10-12 | 2020-07-31 | 山东五征集团有限公司 | Two-shaft integrated multi-gear gearbox |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673772A (en) * | 2022-05-30 | 2022-06-28 | 山东时利和精工机械有限公司 | Shuttle type gear shifting gearbox |
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