CN211737895U - Compact transmission - Google Patents
Compact transmission Download PDFInfo
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- CN211737895U CN211737895U CN201922169024.0U CN201922169024U CN211737895U CN 211737895 U CN211737895 U CN 211737895U CN 201922169024 U CN201922169024 U CN 201922169024U CN 211737895 U CN211737895 U CN 211737895U
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Abstract
The utility model relates to a compact transmission, which comprises a power input shaft, a gear shifting driving gear arranged on the power input shaft in an axial sliding way, an n-gear driving gear arranged on the power input shaft in an idle way and a reverse gear carrier gear; the gear shifting driving gear can directly output power or be meshed with a reverse gear carrier gear or an n-gear driving gear through axial sliding along the power input shaft, and mutual conversion of a first gear, a reverse gear and an n-gear is realized; do benefit to the compact overall arrangement of derailleur structure, do benefit to and realize reversing gear and keep off the interlocking that the position was kept off to second power output, do benefit to the automatic disconnection that the position was kept off to the realization second power output as required, avoid causing the incident in the unconventional use, and simple structure is practical.
Description
Technical Field
The utility model relates to a derailleur especially relates to a compact derailleur.
Background
The existing mechanical equipment with more double power outputs, such as a rotary cultivator in an agricultural machine (rotary tillage is realized in the walking process, a cutter transmission chain is expected to be disconnected in reverse gear or simple quick walking), a mower and the like, a gear shifting mechanism of a transmission of the mechanical equipment often needs to slide for a long distance along the axial direction of a power input shaft to realize the interchange of a plurality of gears, the structure is not compact, more gear gears are used, the cost is reduced, the weight is reduced, the occupied space is large, and the mechanical equipment is not beneficial to convenient and compact arrangement under the compact structure layout, such as the interlocking of the reverse gear and a second power output gear and the automatic disconnection structure of the second power output gear as required.
Based on above problem, the utility model provides a compact transmission. The compact transmission is beneficial to the compact structural layout of the transmission structure, the use number of gears is reduced, the cost is saved, the weight is reduced, meanwhile, the convenient and compact interlocking structure of the reverse gear and the second power output gear of a rotary cultivator and the like is favorably arranged under the compact layout, and the safety accident caused in the unconventional use process is avoided.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses compact transmission does benefit to the compact structure overall arrangement of derailleur structure, does benefit to the use quantity that reduces the gear, practices thrift the cost and subtracts heavy, does benefit to the interlocking structure that convenient and compact setting kept off the position like the reverse gear of rotary cultivator etc. keeps off the position with second power take off under this compact overall arrangement simultaneously, avoids causing the incident in the unconventional use.
The utility model discloses a compact transmission, including power input shaft, along the sliding gear shift driving gear that sets up in power input shaft of axial, the idling sets up in n of power input shaft keeps off driving gear and reverse gear intermediate gear; the gear shifting driving gear can directly output power or be meshed with a reverse gear carrier gear or an n-gear driving gear through axial sliding along the power input shaft, and mutual conversion of a first gear, a reverse gear and an n-gear is realized; namely, the gear-shifting driving gear slides along the axial direction of the power input shaft, so that the meshing state of the gear-shifting driving gear and a first-gear/reverse-gear driven gear (directly outputting power in a first gear), an n-gear driving gear and a reverse-gear carrier gear can be adjusted, and the power can be selectively output through the first gear or the n-gear or the reverse gear according to the requirement; the arrangement mode is favorable for realizing the interchange of a plurality of gears through the axial sliding of the gear shifting driving gear, is favorable for compact structural layout, is favorable for shortening the sliding distance of a shifting fork which shifts the gear shifting driving gear to axially slide along the axial direction of a shifting fork shaft, and is favorable for outputting the power of a reverse gear and a first gear through the same driven gear under the compact structural layout, thereby reducing the use number of the gears, and being favorable for saving the cost and reducing the overall weight; meanwhile, the interlocking structure of a reverse gear and a second power output gear of a rotary cultivator and the like can be conveniently and compactly arranged under the compact structure, so that safety accidents in the unconventional use process can be avoided; a key groove structure matched with the shifting driving gear and the n-gear driving gear is axially arranged between the shifting driving gear and the n-gear driving gear, so that when the shifting driving gear slides to the n-gear driving gear along the axial direction of the power input shaft, a key or a groove of the shifting driving gear is just embedded with a groove or a key arranged at the end, close to the shifting driving gear, of the n-gear driving gear so as to transmit power to the n-gear driving gear and drive the n-gear driving gear to coaxially rotate; the n-gear is a specific gear at least larger than one gear, such as second gear or third gear, and will not be described herein again.
Further, the power output shaft I is also included; a first-gear/reverse-gear driven gear and an n-gear driven gear which is normally meshed with the n-gear driving gear (the meshed state is a normal state) are arranged at proper positions of the power output shaft I; the reverse gear carrier gear comprises reverse gear carrier large gears and reverse gear carrier small gears, wherein the reverse gear carrier large gears are arranged at intervals, and the reverse gear carrier small gears are in constant meshing (the meshing state is a normal state) with the first gear/reverse gear driven gears; the gear shifting driving gear can be directly meshed with a first-gear/reverse-gear driven gear through sliding along the axial direction, or meshed with a reverse-gear gap bridge large gear or meshed with an n-gear driving gear to realize the mutual conversion of first-gear, reverse-gear and n-gear; the gear shifting driving gear slides along the axial direction and is directly meshed with a first-gear/reverse-gear driven gear to form a first-gear; when the gear shifting driving gear slides along the axial direction and is meshed with the reverse gear passing bridge large gear, the reverse gear passing bridge small gear is just meshed with the first gear/reverse gear driven gear to form a reverse gear; the gear shifting driving gear slides along the axial direction to form coaxial engagement with the n-gear driving gear, so that the n-gear driving gear can be coaxially driven and driven to be in a normal engagement state (the engagement state is a normal state) with the n-gear driving gear for transmission, and an n-gear is formed; the power of the reverse gear and the first gear is output through the same driven gear, so that the compact structure layout is further facilitated, the reduction of the use number of the gears is facilitated, the cost is saved, the overall weight is reduced, and meanwhile, the convenient and compact layout under the compact structure, such as the interlocking structure of the reverse gear and the second power output gear of a rotary cultivator and the like, is facilitated, so that safety accidents caused in the unconventional use process are avoided;
further, the gear shifting device also comprises a gear shifting mechanism I; the gear shifting mechanism I comprises a first shifting fork shaft and a first shifting fork arranged on the first shifting fork shaft and used for shifting a gear shifting driving gear to axially slide along a power input shaft; the shifting driving gear is shifted conveniently so as to facilitate the axial sliding of the shifting driving gear along the power input shaft; the n is 2; the n-gear driving gear is a second-gear driving gear, and the n-gear driven gear is a second-gear driven gear;
furthermore, a second power driving gear is arranged on the power input shaft; the second power driving gear is arranged at the far end of the gear shifting driving gear relative to the n-gear driving gear and is shifted by the gear shifting mechanism II to slide in the axial direction of the power input shaft; the gear shifting mechanism II comprises a second shifting fork shaft and a second shifting fork which is arranged on the second shifting fork shaft and used for shifting a second power driving gear to axially slide along a power input shaft; the power output shaft II is also included; a second power driven gear is arranged at a proper position of the power output shaft II; the power output shaft II is a working power output shaft of the transmission;
furthermore, an interlocking stop block is arranged on the side, close to the first shifting fork, of the second shifting fork; the gap between the first shifting fork and the interlocking stop block before the engagement transmission of the reverse gear is arranged, so that when the engagement transmission of the reverse gear is carried out, the first shifting fork pushes the interlocking stop block to push the second shifting fork to axially slide along the second shifting fork shaft, and the second power driving gear is disengaged from the second power driven gear; the interlocking block is preferably arranged at the position of the second shifting fork corresponding to the second shifting fork shaft and is also provided with a shaft hole which is in sliding fit with the second shifting fork shaft together with the end part of the second shifting fork close to the second shifting fork shaft; the engaging and transmission of the second power driving gear and the second power driven gear are facilitated when the reverse gear is engaged and transmitted, and the automatic disconnection transmission of the reverse gear is also facilitated when the second power driving gear is engaged and transmitted with the second power driven gear; when the transmission gear is in a non-reverse gear position, the second power driving gear and the second power driven gear can be shifted and adjusted to be in an engaged state through the second shifting fork, but when the transmission gear is in a reverse gear position, the second power driving gear and the second power driven gear are in a disengaged state; correspondingly, when the second power driving gear and the second power driven gear are in the meshing state, the second power driving gear and the second power driven gear are not in the reverse gear state; the safety accident caused in the process of non-conventional use (such as reverse gear) can be avoided, the structure is simple and practical, and the manufacturing cost of the equipment can not be increased (or not be excessively increased);
further, the first shifting fork is arranged at the end, close to the second power driving gear, of the gear shifting driving gear, and the second shifting fork is arranged at the end, far away from the gear shifting driving gear, of the second power driving gear; when the reverse gear is engaged and transmitted by the first shifting fork, the gear shifting driving gear pushes the second power driving gear to axially move along the power input shaft and is disengaged from the second power driven gear; when the first shifting fork is shifted to move towards the second power driving gear setting end to enable the reverse gear to be engaged and transmitted, the first shifting fork pushes the second shifting fork to move axially along the second shifting fork shaft so that the second power driving gear and the second power driven gear are disengaged, and meanwhile, the shifting driving gear pushes the second power driving gear to move axially along the power input shaft so that the second power driving gear and the second power driven gear are disengaged, so that double interlocking protection is formed, and interlocking stability is improved;
furthermore, the n-gear driving gear is positioned at the far end of the second power driving gear relative to the gear shifting driving gear, and a set distance required by gear disengagement is reserved between the n-gear driven gear meshed with the n-gear driving gear and the first-gear/reverse-gear driven gear; the second power driving gear is positioned on the right side of the gear shifting driving gear; the reverse gear gap bridge large gear is positioned on the right side of the reverse gear gap bridge small gear, and the distance between the reverse gear gap bridge large gear and the reverse gear gap bridge small gear meets the requirements of reverse gear and gear disengagement.
The utility model has the advantages that: the compact transmission of the utility model is beneficial to the compact layout of the transmission structure, the reduction of the number of gears used, the cost saving and the weight reduction, and the convenient and compact arrangement of the interlocking structure of the reverse gear and the second power output gear of a rotary cultivator and the like under the compact layout, thereby avoiding the safety accidents caused in the process of non-conventional use (reverse gear and the like); and simple structure is practical, can not increase (or can not too much increase) equipment manufacturing cost, the utility model discloses a compact transmission is applicable to double dynamical output mechanism and need break off the structure of one of them power in setting for the fender position in the use, is used to agricultural machinery more, specially adapted rotary tillage machinery, lawn mower etc..
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of a second-level structure of the present invention;
fig. 3 is a schematic view of a first-gear structure of the present invention;
fig. 4 is a schematic view of the neutral position structure of the present invention;
fig. 5 is a schematic view of a reverse gear structure of the present invention;
fig. 6 is a schematic diagram of reverse gear engagement according to the present invention.
Detailed Description
The utility model discloses when carrying out the position description, describe with the position that fig. 1 shows, the left and right side position in the figure also is left and right side position in the description, should not regard as the restriction of the utility model.
Fig. 1 is the utility model discloses a structural schematic diagram, fig. 2 is the utility model discloses a keep off the structural schematic diagram, fig. 3 is the utility model discloses a keep off the structural schematic diagram, fig. 4 is the utility model discloses a neutral gear structural schematic diagram, fig. 5 is the utility model discloses a reverse gear structural schematic diagram, fig. 6 is the utility model discloses a reverse gear meshing schematic diagram, as shown in the figure: the compact transmission of the present embodiment includes a power input shaft 1, a shift drive gear 11 axially slidably provided on the power input shaft 1, an n-speed drive gear 12 idly provided on the power input shaft 1, and a reverse carrier gear; the gear shifting driving gear 11 can directly output power or be meshed with a reverse gear carrier gear or be meshed with an n-gear driving gear 12 through axial sliding along the power input shaft 1, and mutual conversion of a first gear, a reverse gear and an n-gear is realized; namely, by shifting the gear-shifting driving gear 11 to slide along the axial direction of the power input shaft 1, the meshing state of the gear-shifting driving gear 11 and a first-gear/reverse-gear driven gear (directly outputting power in a first gear) 21, the n-gear driving gear 11 and a reverse-gear carrier gear can be adjusted, and the power can be selectively output through the first gear or the n-gear or the reverse gear according to the requirement; the arrangement mode is favorable for realizing the interchange of a plurality of gears through the axial sliding of the gear shifting driving gear 11, is favorable for compact structural layout, is favorable for shortening the sliding distance of a shifting fork which shifts the gear shifting driving gear 11 to axially slide along the axial direction of a shifting fork shaft, and is favorable for outputting reverse gear power and first gear power through the same driven gear under the compact structural layout, so that the use number of the gears is reduced, the cost is saved, and the overall weight is reduced; meanwhile, the interlocking structure of a reverse gear and a second power output gear of a rotary cultivator and the like can be conveniently and compactly arranged under the compact structure, so that safety accidents in the unconventional use process can be avoided; a key groove structure matched with the shifting driving gear 11 and the n-gear driving gear 12 is axially arranged between the shifting driving gear 11 and the n-gear driving gear 12, so that when the shifting driving gear 11 slides to the n-gear driving gear 12 along the axial direction of the power input shaft 1, a key or a groove of the shifting driving gear 11 is just embedded with a groove or a key arranged at the end, close to the shifting driving gear 11, of the n-gear driving gear 12 so as to transmit power to the n-gear driving gear 12 and drive the n-gear driving gear 12 to coaxially rotate; the n-gear is a specific gear at least larger than one gear, such as second gear or third gear, and will not be described herein again.
In the embodiment, the power output shaft I2 is also included; a first-gear/reverse-gear driven gear 21 and an n-gear driven gear 22 which is in constant mesh (normally in a meshing state) with the n-gear driving gear 12 are arranged at appropriate positions of the power output shaft I2; the reverse gear carrier gear comprises reverse gear carrier large gears 13 arranged at intervals and a reverse gear carrier small gear 14 which is constantly meshed with the first gear/reverse gear driven gear 21 (the meshing state is normal); the gear shifting driving gear 11 can be directly meshed with a first-gear/reverse-gear driven gear 21 or meshed with a reverse gear gap large gear 13 or meshed with an n-gear driving gear 12 through sliding along the axial direction to realize the mutual conversion of first-gear, reverse-gear and n-gear; the gear shifting driving gear 11 slides along the axial direction and is directly meshed with a first gear/reverse gear driven gear 21 to form a first gear; when the gear-shifting driving gear 11 slides along the axial direction and is meshed with the reverse gear carrier bull gear 14, the reverse gear carrier pinion 13 is just meshed with the first gear/reverse gear driven gear 21 to form a reverse gear; the gear shifting driving gear 11 slides along the axial direction to form coaxial engagement with the n-gear driving gear 12, so that the n-gear driving gear 12 can be driven coaxially and drives the n-gear driving gear 22 which is in a normally engaged state (the engaged state is a normal state) with the n-gear driving gear 12 to transmit, and an n-gear is formed; the power of the reverse gear and the first gear is output through the same driven gear, so that the compact structure layout is further facilitated, the reduction of the use number of the gears is facilitated, the cost is saved, the overall weight is reduced, and meanwhile, the convenient and compact layout under the compact structure, such as the interlocking structure of the reverse gear and the second power output gear of a rotary cultivator and the like, is facilitated, so that safety accidents caused in the unconventional use process are avoided;
in the embodiment, the gear shifting device further comprises a gear shifting mechanism I; the gear shifting mechanism I comprises a first shifting fork shaft 4 and a first shifting fork 41 which is arranged on the first shifting fork shaft 4 and used for shifting the gear shifting driving gear 11 to slide along the axial direction of the power input shaft 1; shifting of the gear shifting driving gear 11 is facilitated, so that the gear shifting driving gear 11 can slide along the axial direction of the power input shaft 1; the n is 2; the n-gear driving gear 12 is a second-gear driving gear, and the n-gear driven gear 22 is a second-gear driven gear;
in this embodiment, the power input shaft 1 is further provided with a second power driving gear 15; the second power driving gear 15 is arranged at the far end of the gear shifting driving gear 11 relative to the n-gear driving gear 12 and is shifted by the gear shifting mechanism II to slide in the axial direction of the power input shaft 1; the gear shifting mechanism II comprises a second shifting fork shaft 5 and a second shifting fork 51 which is arranged on the second shifting fork shaft 5 and used for shifting a second power driving gear 15 to slide along the axial direction of the power input shaft 1;
the power output shaft II 3; a second power driven gear 31 is arranged at a proper position of the power output shaft II 3; the power output shaft II3 is a working power output shaft of the transmission;
in this embodiment, an interlocking block 52 is disposed on the second fork 51 near the first fork 41; the gap between the first shifting fork 41 and the interlocking block 52 before the engagement transmission of the reverse gear is arranged, so that when the engagement transmission of the reverse gear is performed, the first shifting fork 41 pushes the interlocking block 52 to push the second shifting fork 51 to slide along the second shifting fork shaft 5 in the axial direction, and the second power driving gear 15 is disengaged from the second power driven gear 31; the interlocking block 52 is preferably arranged at the position of the second shifting fork 51 corresponding to the second shifting fork shaft 5 and is also provided with a shaft hole which is matched with the second shifting fork shaft 5 in a sliding way with the end part of the second shifting fork 51 close to the second shifting fork shaft 5; the engagement and the transmission of the second power driving gear 15 and the second power driven gear 31 are facilitated when the reverse gear is engaged and transmitted, and the automatic disconnection and the transmission of the reverse gear are facilitated when the second power driving gear 15 and the second power driven gear 31 are engaged and transmitted; namely, when the transmission is in a non-reverse gear, the meshing state of the second power driving gear 15 and the second power driven gear 31 can be shifted and adjusted through the second shifting fork 51, but when the transmission is in a reverse gear, the second power driving gear 15 and the second power driven gear 31 are in a disengaged state; accordingly, when the second power driving gear 15 and the second power driven gear 31 are in the engaged state, they are not in the reverse gear state; the safety accident caused in the process of non-conventional use (such as reverse gear) can be avoided, the structure is simple and practical, and the manufacturing cost of the equipment can not be increased (or not be excessively increased);
in this embodiment, the first shifting fork 41 is disposed at the end of the shift driving gear 11 close to the second power driving gear 15, and the second shifting fork 51 is disposed at the end of the second power driving gear 15 far from the shift driving gear 11; when the reverse gear is engaged and transmitted by the first shifting fork 41, the gear shifting driving gear 11 pushes the second power driving gear 15 to move axially along the power input shaft 1 and disengage from the second power driven gear 31; when the first shifting fork 41 is shifted towards the setting end of the second power driving gear 15 to enable the reverse gear to be engaged and driven, the first shifting fork 41 pushes the second shifting fork 51 to axially move along the second shifting fork shaft 5 to enable the second power driving gear 15 and the second power driven gear 31 to be disengaged, meanwhile, the shifting driving gear 11 pushes the second power driving gear 15 to axially move along the power input shaft 1 to enable the second power driving gear 15 and the second power driven gear 31 to be disengaged, double interlocking protection is favorably formed, and interlocking stability is favorably improved;
in this embodiment, the n-speed driving gear 12 is located at a distal end of the second power driving gear 15 with respect to the shift driving gear 11, and a set distance required for disengagement is reserved between the n-speed driven gear 22 engaged with the n-speed driving gear 12 and the first/reverse speed driven gear 21; the second power driving gear 15 is located on the right side of the shift driving gear 11; the reverse gear large gear wheel 13 is positioned on the right side of the reverse gear small gear wheel 14, and the distance between the reverse gear large gear wheel and the reverse gear small gear wheel meets the requirements of reverse gear and gear disengagement.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. A compact transmission characterized by: the transmission device comprises a power input shaft, a gear shifting driving gear, an n-gear driving gear and a reverse gear carrier gear, wherein the gear shifting driving gear is arranged on the power input shaft in an axial sliding manner; the gear shifting driving gear can directly output power or be meshed with a reverse gear carrier gear or an n-gear driving gear through axial sliding along the power input shaft, and mutual conversion of a first gear, a reverse gear and an n-gear is realized.
2. The compact transmission of claim 1, wherein: the power output shaft I is also included; a first-gear/reverse-gear driven gear and an n-gear driven gear which is normally meshed with the n-gear driving gear are arranged at proper positions of the power output shaft I; the reverse gear carrier gear comprises reverse gear carrier large gears and reverse gear carrier small gears, wherein the reverse gear carrier large gears are arranged at intervals, and the reverse gear carrier small gears are constantly meshed with the first gear/reverse gear driven gears; the gear shifting driving gear can be directly meshed with a first-gear/reverse-gear driven gear through sliding along the axial direction, or meshed with a reverse-gear gap bridge large gear or meshed with an n-gear driving gear to realize the mutual conversion of first-gear, reverse-gear and n-gear.
3. The compact transmission of claim 2, wherein: the gear shifting mechanism I is also included; the gear shifting mechanism I comprises a first shifting fork shaft and a first shifting fork arranged on the first shifting fork shaft and used for shifting a gear shifting driving gear to axially slide along a power input shaft; and n is 2.
4. The compact transmission of claim 3, wherein: the power input shaft is also provided with a second power driving gear; the second power driving gear is arranged at the far end of the gear shifting driving gear relative to the n-gear driving gear and is shifted by the gear shifting mechanism II to slide in the axial direction of the power input shaft; the gear shifting mechanism II comprises a second shifting fork shaft and a second shifting fork which is arranged on the second shifting fork shaft and used for shifting a second power driving gear to axially slide along a power input shaft;
the power output shaft II is also included; a second power driving gear is arranged at a proper position of the power output shaft II; and the power output shaft II is a working power output shaft of the transmission.
5. The compact transmission of claim 4, wherein: an interlocking stop block is arranged on the side, close to the first shifting fork, of the second shifting fork; and when the reverse gear is in joint transmission due to the gap between the first shifting fork and the interlocking stop block before the reverse gear is in joint transmission, the first shifting fork pushes the interlocking stop block to push the second shifting fork to axially slide along the second shifting fork shaft so that the second power driving gear is disengaged from the second power driven gear.
6. The compact transmission of claim 5, wherein: the first shifting fork is arranged at the end, close to the second power driving gear, of the gear shifting driving gear, and the second shifting fork is arranged at the end, far away from the gear shifting driving gear, of the second power driving gear; when the reverse gear is in joint transmission by the first shifting fork, the gear shifting driving gear pushes the second power driving gear to axially move along the power input shaft and is disengaged from the second power driven gear.
7. The compact transmission of claim 6, wherein: the n-gear driving gear is positioned at the far end of the second power driving gear relative to the gear shifting driving gear, and a set distance required by gear disengagement is reserved between the n-gear driven gear meshed with the n-gear driving gear and the first-gear/reverse-gear driven gear; the second power driving gear is positioned on the right side of the gear shifting driving gear; the reverse gear gap bridge large gear is positioned on the right side of the reverse gear gap bridge small gear, and the distance between the reverse gear gap bridge large gear and the reverse gear gap bridge small gear meets the requirements of reverse gear and gear disengagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169024.0U CN211737895U (en) | 2019-12-06 | 2019-12-06 | Compact transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169024.0U CN211737895U (en) | 2019-12-06 | 2019-12-06 | Compact transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211737895U true CN211737895U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922169024.0U Active CN211737895U (en) | 2019-12-06 | 2019-12-06 | Compact transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113969965A (en) * | 2021-11-09 | 2022-01-25 | 隆鑫通用动力股份有限公司 | Mini-tiller gear shifting transmission assembly and mini-tiller |
-
2019
- 2019-12-06 CN CN201922169024.0U patent/CN211737895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113969965A (en) * | 2021-11-09 | 2022-01-25 | 隆鑫通用动力股份有限公司 | Mini-tiller gear shifting transmission assembly and mini-tiller |
| CN113969965B (en) * | 2021-11-09 | 2023-08-15 | 隆鑫通用动力股份有限公司 | Mini-tiller gear shifting transmission assembly and mini-tiller |
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