CN113324003B - Novel transmission system - Google Patents
Novel transmission system Download PDFInfo
- Publication number
- CN113324003B CN113324003B CN202110803349.9A CN202110803349A CN113324003B CN 113324003 B CN113324003 B CN 113324003B CN 202110803349 A CN202110803349 A CN 202110803349A CN 113324003 B CN113324003 B CN 113324003B
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- Prior art keywords
- gear
- shaft
- power output
- speed change
- power
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
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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
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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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- 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
- F16H2200/0095—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising four reverse speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a novel transmission system, and particularly relates to the technical field of transmission systems, which comprises a power input mechanism, a speed change mechanism, a front wheel driving mechanism and a power output mechanism, wherein the power input mechanism is arranged at the rear end of an engine, the engine is connected with the power input mechanism through a clutch, the speed change mechanism is arranged in a transmission case, and the power input mechanism is in transmission connection with the speed change mechanism through a spline sleeve; the front wheel driving mechanism is connected with the power input mechanism and the speed change mechanism through the clutch, and then is transmitted to the four-wheel driving gear in the clutch shell through the spiral bevel gear shaft, and the power is transmitted to the transfer case through the four-wheel driving gear and is transmitted to the front drive axle through the transfer case and the power output transmission shaft. The invention is composed of a crawling gear speed change structure and an auxiliary speed change structure and a main speed change structure in a gearbox, and realizes 12 forward gears and 4 reverse gears.
Description
Technical Field
The invention relates to the technical field of transmission systems, in particular to a novel transmission system.
Background
The prior art clutch includes a single-acting clutch and a double-acting clutch, wherein the single-acting clutch cannot realize the creep stop, and the double-acting clutch can realize the creep stop, but has the problems of high cost and complex structure.
To this end, the invention proposes a new transmission system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel transmission system.
In order to achieve the purpose, the invention provides the following technical scheme: a novel transmission system comprises a power input mechanism, a speed change mechanism, a front wheel driving mechanism and a power output mechanism, wherein the power input mechanism is arranged at the rear end of an engine, the engine is connected with the power input mechanism through a clutch, the speed change mechanism is arranged in a transmission case, and the power input mechanism is in transmission connection with the speed change mechanism through a spline sleeve; the engine is connected with a power input mechanism and a speed change mechanism through a clutch and then is transmitted to a four-drive driving gear in a clutch shell through a spiral bevel gear shaft, the four-drive driving gear transmits power into a transfer case and transmits the power to a front drive axle through the transfer case and a power output shaft of the transfer case, the speed change mechanism comprises an auxiliary speed change shaft, an input gear shaft, an auxiliary speed change duplicate gear, an auxiliary speed change gear meshing sleeve, an auxiliary speed change gear, an intermediate gear shaft, a gear II-III duplicate gear, a reverse gear shaft, a gear I driven gear, a gear I-reverse meshing sleeve, a reverse gear duplicate gear, a gear II driven gear, a gear II-III meshing sleeve, a gear III driven gear and a spiral bevel gear shaft, the auxiliary speed change shaft, the input gear shaft, the intermediate gear shaft, the reverse gear shaft and the spiral bevel gear shaft are arranged in parallel, and the auxiliary speed change duplicate gear is arranged on the speed change auxiliary speed change shaft, the auxiliary transmission gear meshing sleeve is arranged on the input gear shaft, the intermediate gear shaft is provided with a gear II-gear and gear III duplicate gear, the reverse gear shaft is provided with a reverse gear duplicate gear, and the spiral bevel gear shaft is provided with a gear I driven gear, a gear I-reverse meshing sleeve, a reverse gear driven gear, a gear II-gear and gear III driven gear; the power input mechanism comprises a clutch shaft, a connecting sleeve, a power input shaft, a crawling gear driving gear I, a crawling gear meshing sleeve, a crawling gear driven gear, a power input transition shaft, a crawling gear driven gear I and a crawling gear driven gear shaft, wherein the clutch shaft and the crawling gear driven gear shaft are arranged in parallel, the clutch shaft is connected with the power input shaft through the connecting sleeve, the crawling gear driving gear I, the crawling gear meshing sleeve, the crawling gear driven gear and the power input transition shaft are installed on the power input shaft, and the crawling gear driven gear shaft is provided with the crawling gear driven gear I.
Preferably, the front wheel driving mechanism comprises a spline connecting sleeve and a four-wheel drive input shaft which are arranged on a spiral bevel gear shaft, a four-wheel drive driving gear is arranged on the four-wheel drive input shaft, a transfer case intermediate gear is arranged at the lower end of the four-wheel drive driving gear, the transfer case intermediate gear is arranged on the transfer case, and a transfer case power output shaft is arranged on the transfer case.
Preferably, the power output mechanism comprises a power output driving gear, a power output transmission shaft, a power output driven gear, a rear power output driving gear shaft, a power output high-speed driving gear, a power output high-speed driven gear, a power output low-speed driven gear and a power output shaft, and the power output shaft and the rear power output driving gear shaft are arranged in parallel.
The invention has the technical effects and advantages that:
the power of the invention is formed by a creeping gear speed change structure in a clutch shell and an auxiliary speed change structure and a main speed change structure in a gearbox through a single-acting clutch, and the invention realizes the driving of 12 forward gears and 4 reverse gears. The power passes through the main and auxiliary speed change gears, the transfer case and the front drive axle to realize the front wheel drive. The power is output through the crawling gear, various power output transmission gears and finally through the power output shaft.
Drawings
FIG. 1 is a schematic view of the power output structure of the present invention.
Fig. 2 is a schematic structural view of the power input mechanism of the present invention.
Fig. 3 is a schematic structural view of the speed change mechanism of the present invention.
Fig. 4 is a schematic structural view of a front wheel drive mechanism of the present invention.
Reference numbers in the figures: 1. a clutch shaft; 2. connecting sleeves; 3. a power input shaft; 4. a crawling gear driving gear I; 5. a crawling gear meshing sleeve; 6. a creep gear driven gear; 7. a power input transition shaft; 8. a crawling gear driven gear I; 9. a creep gear driven gear shaft; 11. a secondary speed change shaft; 12. an input gear shaft; 13. a sub-transmission double gear; 14. an auxiliary gear shift meshing sleeve; 15. a sub transmission gear; 16. an intermediate gear shaft; 17. II-III gear dual gears; 18. a reverse gear shaft; 19. a first-gear driven gear; 20. i, a reverse gear meshing sleeve; 21. a reverse driven gear; 22. a reverse double gear; 23. a first-gear driven gear; 24. II-III gear meshing sleeves; 25. a III-gear driven gear; 26. a spiral bevel gear shaft; 27. a spline connecting sleeve; 28. a four-wheel drive input shaft; 29. a four-wheel drive gear; 30. a transfer case intermediate gear; 31. a power output shaft of the transfer case; 32. a power output drive gear; 33. a power output transmission shaft; 34. a power take-off driven gear; 35. the rear power output drives the gear shaft; 36. a power output high speed drive gear; 37. a power output high-speed driven gear; 38. a power output low-speed driven gear; 39. and a power output shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a novel transmission system according to an embodiment of the present invention includes a power input mechanism, a speed change mechanism, a front wheel drive mechanism, and a power output mechanism, wherein the power input mechanism is installed at a rear end of an engine, the engine is connected to the power input mechanism through a clutch, the speed change mechanism is disposed in a transmission case, and the power input mechanism is in transmission connection with the speed change mechanism through a spline housing; the engine is connected with the power input mechanism and the speed change mechanism through the clutch, and then is transmitted to the four-wheel drive driving gear 29 in the clutch shell through the spiral bevel gear shaft 26, the power is transmitted to the transfer case through the four-wheel drive driving gear 29, and is transmitted to the front drive axle through the transfer case and the transfer case power output shaft 31.
In a preferred embodiment, the power input mechanism comprises a clutch shaft 1, a connecting sleeve 2, a power input shaft 3, a crawling gear driving gear I4, a crawling gear meshing sleeve 5, a crawling gear driven gear 6, a power input transition shaft 7, a crawling gear driven gear I8 and a crawling gear driven gear shaft 9, wherein the clutch shaft 1 and the crawling gear driven gear shaft 9 are arranged in parallel, the clutch shaft 1 is connected with the power input shaft 3 through the connecting sleeve 2, the crawling gear driving gear I4, the crawling gear meshing sleeve 5, the crawling gear driven gear 6 and the power input transition shaft 7 are installed on the power input shaft 3, and the crawling gear driven gear shaft 9 is provided with the crawling gear driven gear I8.
In a preferred embodiment, the transmission mechanism comprises a secondary transmission shaft 11, an input gear shaft 12, a secondary transmission duplicate gear 13, a secondary transmission gear sleeve 14, a secondary transmission gear 15, an intermediate gear shaft 16, a ii-iii gear duplicate gear 17, a reverse gear shaft 18, a first i-gear driven gear 19, an i-reverse gear sleeve 20, a reverse gear driven gear 21, a reverse gear duplicate gear 22, a second i-gear driven gear 23, a ii-iii gear sleeve 24, a iii-gear driven gear 25 and a spiral bevel gear shaft 26, the secondary transmission shaft 11, the input gear shaft 12, the intermediate gear shaft 16, the reverse gear shaft 18 and the spiral bevel gear shaft 26 being arranged parallel to each other, the secondary transmission duplicate gear 13 being arranged on the secondary transmission shaft 11, the secondary transmission gear sleeve 14 being arranged on the input gear shaft 12, the intermediate gear shaft 16 being provided with the ii-iii gear duplicate gear 17, the reverse gear shaft 18 is provided with a reverse gear duplicate gear 22, and the spiral bevel gear shaft 26 is provided with a first-gear driven gear 19, a first-reverse gear meshing sleeve 20, a reverse gear duplicate gear 22, a second-gear driven gear 23, a second-third gear meshing sleeve 24 and a third-gear driven gear 25.
In a preferred embodiment, the front wheel driving mechanism comprises a spline connecting sleeve 27 arranged on a spiral bevel gear shaft 26 and a four-wheel drive input shaft 28, a four-wheel drive gear 29 is arranged on the four-wheel drive input shaft 28, a transfer case intermediate gear 30 is arranged on one side of the four-wheel drive gear 29, the transfer case intermediate gear 30 is arranged on the transfer case, and a transfer case power output shaft 31 is arranged on the transfer case.
In a preferred embodiment, the power output mechanism comprises a power output driving gear 32, a power output transmission shaft 33, a power output driven gear 34, a rear power output driving gear shaft 35, a power output high-speed driving gear 36, a power output high-speed driven gear 37, a power output low-speed driven gear 38 and a power output shaft 39, and the power output shaft 39 and the rear power output driving gear shaft 35 are arranged in parallel with each other.
A slow gear power route: engine power → single-acting clutch → clutch shaft 1 → adapter sleeve 2 → power input shaft 3 → driving gear for creep gear i 4 → driven gear for creep gear i 8 → driven gear shaft for creep gear 9 → driven gear for creep gear 6 → power input transition shaft 7 (the meshing sleeve for creep gear 5 is hitched to the right);
a fast-gear power route: engine power → single-acting clutch → clutch shaft 1 → connecting sleeve 2 → power input shaft 3 → creeper gear driving gear i 4 → power input transition shaft 7 (the creeper gear engaging sleeve 5 is hitched to the left);
high-gear power route: input gear shaft 12 → intermediate gear shaft 16 (auxiliary transmission gear sleeve 14 hitched to the right);
low-gear power route: input gear shaft 12 → subtransmission double gear 13 → subtransmission gear 15 → intermediate gear shaft 16 (with the subtransmission gear sleeve 14 hooked to the left);
i keeps off power route: the intermediate gear shaft 16 → the i-speed driven gear 19 → the spiral bevel gear shaft 26 (the i-reverse gear sleeve 20 is hooked to the left);
reverse gear power route: the intermediate gear shaft 16 → the ii-iii range duplicate gear 17 → the reverse range duplicate gear 22 → the reverse driven gear 21 → the spiral bevel gear shaft 26 (member i-reverse sleeve 20 hitches to the right);
and II, a gear power route: the intermediate gear shaft 16 → the II-III gear duplicate gear 17 → the II gear driven gear 23 → the spiral bevel gear shaft 26 (the II-III gear meshing sleeve 24 is hooked to the left);
and III gear power route: the intermediate gear shaft 16 → the II-III gear duplicate gear 17 → the III gear driven gear 25 → the spiral bevel gear shaft 26 (the II-III gear meshing sleeve 24 is hooked to the right);
the power of the engine is transmitted to a spiral bevel gear shaft 26 of a main transmission part through a clutch, a creep gear power route, a secondary transmission route and a main transmission route, the spiral bevel gear shaft 26 → a spline connecting sleeve 27 → a four-wheel drive input shaft 28 → a four-wheel drive gear 29 → a transfer case intermediate gear 30 → a transfer case power output shaft 31, and the transfer case power output shaft 31 transmits the power to a front drive axle through a transmission shaft, so that the front wheel drive is realized.
The power transmission route of the power output transmission system is as follows:
1. low speed power take off
Engine power → single-acting clutch → clutch shaft 1 → power input shaft 3 → creep gear driving gear i 4 → creep gear driven gear i 8 → power output driving gear 32 → power output driven gear 34 → power output transmission shaft 33 → rear power output driving gear shaft 35 → power output low speed driven gear 38 → power output shaft 39.
2. High speed power take off
Engine power → single-acting clutch → clutch shaft 1 → power input shaft 3 → creep gear driving gear i 4 → creep gear driven gear i 8 → power output driving gear 32 → power output driven gear 34 → power output transmission shaft 33 → power output high speed driving gear 36 → power output high speed driven gear 37 → power output shaft 39.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A novel transmission system is characterized by comprising a power input mechanism, a speed change mechanism, a front wheel driving mechanism and a power output mechanism, wherein the power input mechanism is arranged at the rear end of an engine, the engine is connected with the power input mechanism through a clutch, the speed change mechanism is arranged in a transmission case, and the power input mechanism is in transmission connection with the speed change mechanism through a spline housing; the engine is connected with a power input mechanism and a speed change mechanism through a clutch, and then is transmitted to a four-wheel drive gear (29) in a clutch shell through a spiral bevel gear shaft (26), the power is transmitted to a transfer case through the four-wheel drive gear (29), and is transmitted to a front drive axle through a transfer case and a transfer case power output shaft (31), the speed change mechanism comprises an auxiliary speed change shaft (11), an input gear shaft (12), an auxiliary speed change duplicate gear (13), an auxiliary speed change gear meshing sleeve (14), an auxiliary speed change gear (15), an intermediate gear shaft (16), a II-III gear duplicate gear (17), a reverse gear shaft (18), a I-gear driven gear (19), an I-reverse gear meshing sleeve (20), a reverse gear driven gear (21), a reverse gear duplicate gear (22), a II-gear driven gear (23), a II-III gear meshing sleeve (24), a III gear driven gear (25) and a spiral bevel gear shaft (26), the auxiliary speed changing shaft (11), the input gear shaft (12), the intermediate gear shaft (16), the reverse gear shaft (18) and the spiral bevel gear shaft (26) are arranged in parallel, the auxiliary speed changing duplicate gear (13) is arranged on the auxiliary speed changing shaft (11), the auxiliary speed changing meshing sleeve (14) is arranged on the input gear shaft (12), the intermediate gear shaft (16) is provided with a II-III gear duplicate gear (17), the reverse gear shaft (18) is provided with a reverse gear duplicate gear (22), and the spiral bevel gear shaft (26) is provided with a I-gear driven gear (19), an I-reverse gear meshing sleeve (20), a reverse gear duplicate gear (22), a II-gear driven gear (23), a II-III gear meshing sleeve (24) and a III-gear driven gear (25);
the power input mechanism comprises a clutch shaft (1), a connecting sleeve (2), a power input shaft (3), a crawling gear driving gear I (4), a crawling gear meshing sleeve (5), a crawling gear driven gear (6), a power input transition shaft (7), a crawling gear driven gear I (8) and a crawling gear driven gear shaft (9), wherein the clutch shaft (1) and the crawling gear driven gear shaft (9) are arranged in parallel, the clutch shaft (1) is connected with the power input shaft (3) through the connecting sleeve (2), the crawling gear driving gear I (4), the crawling gear meshing sleeve (5), the crawling gear driven gear (6) and the power input transition shaft (7) are installed on the power input shaft (3), and the crawling gear driven gear shaft (9) is provided with the crawling gear driven gear I (8).
2. The novel transmission system according to claim 1, characterized in that the front wheel driving mechanism comprises a spline connecting sleeve (27) and a four-wheel drive input shaft (28) which are arranged on a spiral bevel gear shaft (26), a four-wheel drive driving gear (29) is arranged on the four-wheel drive input shaft (28), a transfer case intermediate gear (30) is arranged below the four-wheel drive driving gear (29), the transfer case intermediate gear (30) is arranged on a transfer case, and a transfer case power output shaft (31) is arranged on the transfer case.
3. The novel transmission system of claim 1, wherein the power output mechanism comprises a power output driving gear (32), a power output transmission shaft (33), a power output driven gear (34), a rear power output driving gear shaft (35), a power output high-speed driving gear (36), a power output high-speed driven gear (37), a power output low-speed driven gear (38) and a power output shaft (39), and the power output shaft (39) and the rear power output driving gear shaft (35) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803349.9A CN113324003B (en) | 2021-07-16 | 2021-07-16 | Novel transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803349.9A CN113324003B (en) | 2021-07-16 | 2021-07-16 | Novel transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113324003A CN113324003A (en) | 2021-08-31 |
| CN113324003B true CN113324003B (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110803349.9A Active CN113324003B (en) | 2021-07-16 | 2021-07-16 | Novel transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113324003B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202439565U (en) * | 2012-02-23 | 2012-09-19 | 江苏常发农业装备股份有限公司 | Tractor chassis transmission device |
| CN104228559A (en) * | 2014-04-14 | 2014-12-24 | 第一拖拉机股份有限公司 | Spatial three-shaft 48F+48R tractor transmission system with creeping gear |
| CN104648137A (en) * | 2015-02-11 | 2015-05-27 | 第一拖拉机股份有限公司 | Power reversing tractor transmission system of main clutch between main speed variator and auxiliary speed variator |
| CN204459014U (en) * | 2015-01-30 | 2015-07-08 | 洛阳博途农业装备有限公司 | Middle-size and small-size four-wheel drive tractor variable speed drive |
| CN206017590U (en) * | 2016-08-29 | 2017-03-15 | 第一拖拉机股份有限公司 | A kind of used with tractor is creeped blocking means |
| CN207246339U (en) * | 2017-09-22 | 2018-04-17 | 江苏大学 | A kind of more power output speed changing boxes of tractor |
| CN110307325A (en) * | 2019-08-01 | 2019-10-08 | 第一拖拉机股份有限公司 | A kind of used with tractor variable speed drive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012043561A1 (en) * | 2010-09-28 | 2012-04-05 | 株式会社クボタ | Power transmission device of tractor |
-
2021
- 2021-07-16 CN CN202110803349.9A patent/CN113324003B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202439565U (en) * | 2012-02-23 | 2012-09-19 | 江苏常发农业装备股份有限公司 | Tractor chassis transmission device |
| CN104228559A (en) * | 2014-04-14 | 2014-12-24 | 第一拖拉机股份有限公司 | Spatial three-shaft 48F+48R tractor transmission system with creeping gear |
| CN204459014U (en) * | 2015-01-30 | 2015-07-08 | 洛阳博途农业装备有限公司 | Middle-size and small-size four-wheel drive tractor variable speed drive |
| CN104648137A (en) * | 2015-02-11 | 2015-05-27 | 第一拖拉机股份有限公司 | Power reversing tractor transmission system of main clutch between main speed variator and auxiliary speed variator |
| CN206017590U (en) * | 2016-08-29 | 2017-03-15 | 第一拖拉机股份有限公司 | A kind of used with tractor is creeped blocking means |
| CN207246339U (en) * | 2017-09-22 | 2018-04-17 | 江苏大学 | A kind of more power output speed changing boxes of tractor |
| CN110307325A (en) * | 2019-08-01 | 2019-10-08 | 第一拖拉机股份有限公司 | A kind of used with tractor variable speed drive |
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| CN113324003A (en) | 2021-08-31 |
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Effective date of registration: 20230809 Address after: 261000 North of Hairun Street and West of Haifeng Road, Binhai Economic and Technological Development Zone, Weifang, Shandong Patentee after: Weifang Fuhai Electric Co.,Ltd. Address before: 261000 south of 1000m East Road, Gucheng village, Yingqiu Town, Changle County, Weifang City, Shandong Province Patentee before: Weifang Binda Machinery Manufacturing Co.,Ltd. |
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