CN218913606U - Transmission of middle horsepower section agricultural tractor - Google Patents
Transmission of middle horsepower section agricultural tractor Download PDFInfo
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- CN218913606U CN218913606U CN202320115535.8U CN202320115535U CN218913606U CN 218913606 U CN218913606 U CN 218913606U CN 202320115535 U CN202320115535 U CN 202320115535U CN 218913606 U CN218913606 U CN 218913606U
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Abstract
The utility model belongs to the technical field of agricultural machinery speed changers, and relates to a medium horsepower section agricultural tractor speed changer, which comprises a speed changer shell, a first shaft, a second shaft and an intermediate shaft, wherein one end of the first shaft, which is close to the second shaft, is provided with a first shaft gear, an intermediate shaft normal gear, an intermediate shaft three-gear, an intermediate shaft second gear and an intermediate shaft first gear, the second shaft is sequentially sleeved with the second shaft three-gear, the second shaft two-gear and the second shaft first gear, the intermediate shaft normal gear is meshed with the first shaft gear, a first gear synchronizer assembly and a second gear synchronizer assembly are arranged on the second shaft between the second shaft first gear and the second shaft two-gear in a sliding manner, and a third gear synchronizer assembly and a fourth gear synchronizer assembly are arranged on the second shaft between the second shaft three-gear and the first shaft gear in a sliding manner. The medium horsepower section agricultural tractor speed changer provided by the utility model has the advantages of simple structure, small volume, good operability, good comfort and long service life.
Description
Technical Field
The utility model belongs to the technical field of agricultural machinery speed changers, and relates to a medium horsepower section agricultural tractor speed changer.
Background
At present, a transmission matched with a middle horsepower section tractor basically shifts by sliding teeth or meshing sleeves during gear shifting, the gear shifting is heavy, and a gear shifting gear is easy to wear. In order to improve the operability of the transmission and the comfort of the driver and reduce the fatigue of the driver, a new gear shifting structure needs to be developed to meet the demands of vast customers.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a medium horsepower section agricultural tractor speed changer, which has the advantages of simple structure, small volume, good operability, good comfort and long service life.
In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme:
the utility model provides a well horsepower section agricultural tractor derailleur, includes the derailleur casing, be provided with the axle that is connected with the engine transmission in the derailleur casing, with the diaxon that next stage drive mechanism transmission is connected, be located the jackshaft below one axle and diaxon, one end that the axle is close to the diaxon is provided with a spindle gear, be provided with jackshaft normal gear, jackshaft third gear, jackshaft second gear and jackshaft first gear on the jackshaft in proper order, the cover is equipped with diaxon third gear, diaxon second gear and diaxon first gear on the diaxon in proper order, jackshaft third gear and diaxon third gear meshing, jackshaft second gear and diaxon second gear meshing, jackshaft first gear and diaxon first gear meshing, be provided with one, the second gear synchronizer assembly on the diaxon between the diaxon third gear and the diaxon second gear, the diaxon third gear and the diaxon between the diaxon gear slides and is provided with three, four-gear synchronizer.
In the medium horsepower section agricultural tractor transmission, the first shaft and the intermediate shaft are gear shafts.
In the mid-horsepower section agricultural tractor transmission, the two-shaft three-gear, the two-shaft two-gear and the two-shaft one-gear are sleeved on the two shafts in an empty mode; the first gear synchronizer assembly and the second gear synchronizer assembly are respectively meshed with the second shaft second gear and the second shaft first gear when sliding left and right, and the second shaft second gear or the second shaft first gear is meshed with the first gear synchronizer assembly and the second gear synchronizer assembly drives the second shaft to synchronously rotate; the three-gear synchronizer assembly and the four-gear synchronizer assembly are meshed with the first shaft gear and the second shaft three-gear respectively when sliding leftwards and rightwards, and the first shaft gear or the second shaft three-gear is meshed with the three-gear synchronizer assembly and the four-gear synchronizer assembly to drive the second shaft to synchronously rotate.
In the mid-horsepower section agricultural tractor transmission, the first gear synchronizer assembly, the second gear synchronizer assembly, the third gear synchronizer assembly and the fourth gear synchronizer assembly are shifted through the shifting fork mechanism.
In the medium horsepower section agricultural tractor transmission, the first shaft and the second shaft are coaxially arranged, and the first shaft and the second shaft are connected through a bearing; the intermediate shaft is arranged in parallel with a shaft, and the shaft is connected with the intermediate shaft through a gear.
In the above-mentioned mid-horsepower section agricultural tractor transmission, preferably, the first-gear synchronizer assembly, the second-gear synchronizer assembly and the third-gear synchronizer assembly and the fourth-gear synchronizer assembly are cylindrical slide block locking ring type synchronizers.
In the above-mentioned mid-horsepower section agricultural tractor derailleur, be provided with the reverse gear idler shaft in the derailleur casing, the cover is equipped with the reverse gear idler on the reverse gear idler shaft, reverse gear idler and jackshaft first gear meshing, the cover is equipped with the reverse gear with reverse gear idler meshing on the jackshaft to slide and be provided with reverse gear meshing cover assembly, when reverse gear meshing cover assembly slides to reverse gear direction, reverse gear meshing cover assembly and reverse gear meshing, preferably, reverse gear meshing cover assembly and reverse gear setting are in the outside of jackshaft first gear.
In the above-described medium horsepower range farm tractor transmission, the output power of the medium horsepower range farm tractor is 40-60 horsepower.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a medium-sized tractor transmission with bearing capacity, which achieves the aim of improving the capacity of a transmission synchronizer by adjusting a gear shifting structure, further achieves the aim of improving the gear shifting performance of the transmission and improving the comfort of vast drivers and passengers, and is particularly suitable for the transmission with the input power of 40-60 horsepower for a tractor. The utility model has the advantages of simple structure, small volume, good operability, good comfort and long service life, and meets the demands of vast customers.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
reference numerals: 10. a transmission housing; 1. a shaft; 11. a shaft gear; 2. a two-axis; 21. a two-shaft three-gear; 22. a two-shaft two-gear; 23. a two-shaft first-gear; 24. a first gear and second gear synchronizer assembly; 25. a third and fourth gear synchronizer assembly; 26. a reverse gear; 27. reverse gear meshing sleeve assembly; 3. an intermediate shaft; 31. the intermediate shaft is normally engaged with the gear; 32. a middle shaft three-gear; 33. a middle shaft second gear; 34. a middle shaft one-stop gear; 4. a reverse idler shaft; 41. reverse idler.
Detailed Description
The utility model is further described in the following by way of specific embodiments with reference to the accompanying drawings, in which reference is made to fig. 1:
the utility model provides a mid horsepower section agricultural tractor derailleur, includes derailleur casing 10, be provided with in the derailleur casing 10 with the driven connection of engine, with the driven connection of next level drive mechanism's diaxon 2, be located the jackshaft 3 of diaxon 1 and diaxon 2 below, one end that is close to diaxon 2 of diaxon 1 is provided with a spindle gear 11, be provided with jackshaft normal gear 31, jackshaft third gear 32, jackshaft second gear 33 and jackshaft first gear 34 on the jackshaft 3 in proper order, be equipped with diaxon third gear 21, diaxon second gear 22 and diaxon first gear 23 on the diaxon 2 in proper order, jackshaft normal gear 31 meshes with the diaxon gear 11, jackshaft third gear 32 meshes with diaxon third gear 21, jackshaft second gear 33 meshes with diaxon second gear 22, jackshaft first gear 34 meshes with diaxon first gear 23, slip between diaxon third gear 23 and diaxon second gear 22 is provided with one, diaxon third gear 24, diaxon third gear 21 and diaxon third gear 25 are provided with synchronous gear assembly, and is provided with the diaxon third gear assembly 25.
During gear shifting, the connection state of the two-shaft two-gear 22 and the two-shaft one-gear 23 and the two-shaft 2 is changed by shifting the first-gear synchronizer assembly and the second-gear synchronizer assembly 24, and the connection state of the two-shaft three-gear 21 and the one-shaft gear 11 and the two-shaft 2 is changed by shifting the third-gear synchronizer assembly and the fourth-gear synchronizer assembly 25.
The power transmission process of the first gear comprises the following steps: the speed changer is switched into a state that the two-shaft first-catch gear 23 is meshed with the first-gear synchronizer assembly 24 and the second-gear synchronizer assembly 24, the engine drives the first shaft 1 to rotate, the first shaft gear 11 rotates along with the first shaft, the first shaft gear 11 drives the intermediate shaft 3 to rotate through the intermediate shaft normal-fit gear 31 meshed with the first shaft gear 11, the intermediate shaft first-catch gear 34 on the intermediate shaft 3 rotates along with the intermediate shaft first-catch gear 34, the two-shaft first-catch gear 23 meshed with the intermediate shaft first-catch gear 34 rotates along with the intermediate shaft first-catch gear 23, and the two-shaft first-catch gear 23 drives the two-shaft 2 to rotate through the first-gear synchronizer assembly 24 meshed with the second-gear synchronizer assembly 24.
The power transmission process of the second gear comprises the following steps: the speed changer is switched to a state that the two-shaft two-gear 22 is meshed with the first gear synchronizer assembly and the second gear synchronizer assembly 24, the engine drives the first shaft 1 to rotate, the first shaft gear 11 rotates along with the first shaft gear, the first shaft gear 11 drives the intermediate shaft 3 to rotate through the intermediate shaft normal gear 31 meshed with the first shaft gear 11, the intermediate shaft second gear 33 on the intermediate shaft 3 rotates with it, the second shaft second gear 22 meshed with the intermediate shaft second gear 33 rotates with it, the two-shaft two-gear 22 drives the two shafts 2 to rotate through a two-gear synchronizer assembly 24 meshed with the two-shaft two-gear.
The power transmission process of three gears: the speed changer is switched into a state that the two-shaft three-gear 21 is meshed with the three-gear and four-gear synchronizer assembly 25, the engine drives the first shaft 1 to rotate, the first shaft gear 11 rotates along with the first shaft, the first shaft gear 11 drives the intermediate shaft 3 to rotate through the intermediate shaft normal gear 31 meshed with the first shaft gear 11, the intermediate shaft three-gear 32 on the intermediate shaft 3 rotates along with the intermediate shaft three-gear 32, the two-shaft three-gear 21 meshed with the intermediate shaft three-gear 32 rotates along with the intermediate shaft three-gear, and the two-shaft three-gear 21 drives the two shafts 2 to rotate through the three-gear and four-gear synchronizer assembly 25 meshed with the second shaft three-gear.
The power transmission process of the fourth gear is as follows: the speed changer is switched into a state that the first shaft gear 11 is meshed with the three-gear and four-gear synchronizer assembly 25, the engine drives the first shaft 1 to rotate, the first shaft gear 11 rotates along with the first shaft gear, and the first shaft gear 11 drives the second shaft 2 to rotate through the three-gear and four-gear synchronizer assembly 25 meshed with the first shaft gear.
Preferably, the first shaft 1 and the intermediate shaft 3 are gear shafts.
In the embodiment, the two-shaft three-gear 21, the two-shaft two-gear 22 and the two-shaft one-gear 23 are sleeved on the two shafts 2 in an empty mode; the first gear synchronizer assembly 24 and the second gear synchronizer assembly 24 are respectively meshed with the second shaft second gear 22 and the second shaft first gear 23 when sliding leftwards and rightwards, and the second shaft second gear 22 or the second shaft first gear 23 is driven to synchronously rotate by the first gear synchronizer assembly 24 and the second gear synchronizer assembly 24 when meshed with the first gear synchronizer assembly and the second gear synchronizer assembly 24; the three-gear synchronizer assembly and the four-gear synchronizer assembly 25 are respectively meshed with the first shaft gear 11 and the second shaft three-gear 21 when sliding leftwards and rightwards, and the first shaft gear 11 or the second shaft three-gear 21 is meshed with the three-gear and four-gear synchronizer assembly 25 to drive the second shaft 2 to synchronously rotate through the three-gear and four-gear synchronizer assembly 25.
In this embodiment, the first gear synchronizer assembly 24, the second gear synchronizer assembly 24, the third gear synchronizer assembly 25 and the fourth gear synchronizer assembly 25 are shifted by a shift fork mechanism.
In this embodiment, preferably, the first shaft 1 and the second shaft 2 are coaxially arranged, and the first shaft 1 and the second shaft 2 are connected through bearings; the intermediate shaft 3 is arranged in parallel with a shaft 1, and the shaft 1 and the intermediate shaft 3 are connected through gears.
In this embodiment, the first and second gear synchronizer assemblies 24 and the third and fourth gear synchronizer assemblies 25 are preferably cylindrical slider lock ring type synchronizers.
The embodiment also provides a reverse gear mechanism, the reverse gear idler shaft 4 is arranged in the transmission housing 10, the reverse gear idler shaft 4 is sleeved with a reverse gear idler 41, the reverse gear idler 41 is meshed with the intermediate shaft first gear 34, the two shafts 2 are sleeved with a reverse gear 26 meshed with the reverse gear idler 41 and provided with a reverse gear meshing sleeve assembly 27 in a sliding manner, when the reverse gear meshing sleeve assembly 27 slides towards the reverse gear 26, the reverse gear meshing sleeve assembly 27 is meshed with the reverse gear 26, and preferably, the reverse gear meshing sleeve assembly 27 and the reverse gear 26 are arranged outside the two shafts first gear 23.
The power transmission process of the reverse gear comprises the following steps: the transmission is switched into a state that the reverse gear 26 is meshed with the reverse gear meshing sleeve assembly 27, the engine drives the first shaft 1 to rotate, the first shaft gear 11 rotates along with the first shaft, the first shaft gear 11 drives the intermediate shaft 3 to rotate through the intermediate shaft normal gear 31 meshed with the first shaft gear 11, the intermediate shaft first gear 34 on the intermediate shaft 3 rotates along with the intermediate shaft normal gear, the reverse gear idler gear 41 meshed with the intermediate shaft first gear 34 rotates along with the intermediate shaft normal gear 34, the reverse gear 26 meshed with the reverse gear idler gear 41 rotates along with the intermediate shaft normal gear, and the reverse gear 26 drives the second shaft 2 to rotate through the reverse gear meshing sleeve assembly 27 meshed with the reverse gear normal gear.
The transmission provided by the embodiment is particularly suitable for a middle horsepower section agricultural tractor, and the output power of the middle horsepower section agricultural tractor is 40-60 horsepower.
The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (6)
1. The utility model provides a mid-horsepower section agricultural tractor derailleur, includes derailleur casing (10), be provided with in derailleur casing (10) with the one axle (1) of engine drive connection, with the diaxon (2) of next stage drive mechanism drive connection, be located jackshaft (3) below one axle (1) and diaxon (2), characterized in that, one end that is close to diaxon (2) of one axle (1) is provided with one axle gear (11), jackshaft (3) are last to have set gradually jackshaft normal close gear (31), jackshaft third gear (32), jackshaft second gear (33) and jackshaft first gear (34), sleeve in proper order on diaxon (2) and be equipped with diaxon third gear (21), diaxon second gear (22) and diaxon first gear (23), jackshaft normal gear (31) meshes with one axle gear (11), jackshaft third gear (32) meshes with diaxon third gear (21), jackshaft second gear (33) meshes with diaxon second gear (22) and diaxon second gear (24) and is provided with two gear (24) and is slided between gear assembly and diaxon second gear (22), and a three-gear and four-gear synchronizer assembly (25) is arranged on the two shafts (2) between the two-shaft three-gear (21) and the one-shaft gear (11) in a sliding manner.
2. The mid-horsepower range agricultural tractor transmission of claim 1, wherein the axle (1) and the intermediate axle (3) are gear shafts.
3. The transmission of the mid-horsepower farm tractor according to claim 1, wherein the primary shaft (1) and the secondary shaft (2) are coaxially arranged, and the primary shaft (1) and the secondary shaft (2) are connected through bearings; the intermediate shaft (3) is arranged in parallel with a shaft (1), and the shaft (1) is connected with the intermediate shaft (3) through a gear.
4. The mid-horsepower range agricultural tractor transmission of claim 1, wherein the first and second speed synchronizer assemblies (24) and the third and fourth speed synchronizer assemblies (25) are cylindrical slider lock ring synchronizers.
5. The medium horsepower section agricultural tractor transmission according to claim 1, wherein a reverse gear idler shaft (4) is arranged in the transmission housing (10), a reverse gear idler wheel (41) is sleeved on the reverse gear idler shaft (4), the reverse gear idler wheel (41) is meshed with a first gear (34) of an intermediate shaft, a reverse gear (26) meshed with the reverse gear idler wheel (41) is sleeved on the two shafts (2), and a reverse gear meshing sleeve assembly (27) is slidably arranged.
6. The mid-horsepower range agricultural tractor transmission of claim 1, wherein said mid-horsepower range agricultural tractor has an output power of 40-60 horsepower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320115535.8U CN218913606U (en) | 2023-01-13 | 2023-01-13 | Transmission of middle horsepower section agricultural tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320115535.8U CN218913606U (en) | 2023-01-13 | 2023-01-13 | Transmission of middle horsepower section agricultural tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913606U true CN218913606U (en) | 2023-04-25 |
Family
ID=86014484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320115535.8U Active CN218913606U (en) | 2023-01-13 | 2023-01-13 | Transmission of middle horsepower section agricultural tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913606U (en) |
-
2023
- 2023-01-13 CN CN202320115535.8U patent/CN218913606U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |