CN220248828U - Transmission system of medium horsepower tractor gearbox - Google Patents
Transmission system of medium horsepower tractor gearbox Download PDFInfo
- Publication number
- CN220248828U CN220248828U CN202321902258.1U CN202321902258U CN220248828U CN 220248828 U CN220248828 U CN 220248828U CN 202321902258 U CN202321902258 U CN 202321902258U CN 220248828 U CN220248828 U CN 220248828U
- Authority
- CN
- China
- Prior art keywords
- gear
- duplex
- driven
- driving
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 230000008859 change Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a transmission system of a medium horsepower tractor gearbox, which belongs to the technical field of manual speed change and comprises a box body, wherein a first shaft and a second shaft which are arranged in parallel are arranged in the box body in a penetrating way, and a three-gear driven gear shaft is sleeved on the second shaft; a second-gear driving gear, a first-gear driving gear, a third-gear driving duplex gear, a third-fourth-gear sliding sleeve, a fourth-gear driving duplex gear and a low-speed driving gear are sequentially arranged on the first shaft; the three-gear driven gear shaft is sequentially provided with a second-gear driven duplex gear, a second-gear sliding sleeve, a first-gear driven duplex gear, a third-gear driven gear and a fourth-gear driven duplex gear; the two shafts are also sleeved with a high-low speed sliding sleeve and a low-speed driven duplex gear, and the high-low speed sliding sleeve is positioned between the four-gear driven duplex gear and the low-speed driven duplex gear. The utility model adopts a sliding sleeve gear shifting mode, reduces the number of gears, prolongs the service life of the gears, and ensures that the gear number of the gearbox can still be kept unchanged, so that the tractor is flexible and convenient to operate, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a transmission system, in particular to a transmission system of a medium horsepower tractor gearbox, and belongs to the technical field of manual speed change.
Background
The transmission system of the transmission box of the medium horsepower tractor generally adopts a sliding gear for gear shifting, and the structure is easy to manufacture, simple in structure, but has more defects:
since each gear has a different angular velocity when the tractor is running, shifting by axially sliding the spur gear causes an impact on the end face of the gear teeth, accompanied by noise. The gear end wear is increased and the gear end is damaged too early, so that the driving safety of the automobile is reduced, the driver is stressed, the riding comfort is greatly reduced due to noise generated by gear shifting, and the operational requirement on the driver is high in a gear shifting mode.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the background technology, the utility model provides the transmission system of the medium horsepower tractor gearbox, which can replace the traditional sliding gear shifting mode by the sliding sleeve shifting mode, reduces the number of gears, prolongs the service life of the gears, ensures that the gearbox still can keep the number of gears unchanged, ensures that the tractor operation is more flexible and convenient, greatly lightens the burden of a driver and improves the working efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the transmission system of the medium horsepower tractor gearbox comprises a box body which is fixedly arranged, wherein a first shaft and a second shaft which are rotatably connected with the box body are arranged in a penetrating manner in the box body, the first shaft and the second shaft are arranged in parallel, and a three-gear driven gear shaft is sleeved on the second shaft;
a second-gear driving gear, a first-gear driving gear, a third-gear driving duplex gear, a third-fourth-gear sliding sleeve, a fourth-gear driving duplex gear and a low-speed driving gear are sequentially arranged on the first shaft;
the three-gear driven gear shaft is sequentially provided with a second-gear driven duplex gear, a second-gear sliding sleeve, a first-gear driven duplex gear, a third-gear driven gear and a fourth-gear driven duplex gear;
the two shafts are also sleeved with a high-low speed sliding sleeve and a low-speed driven duplex gear, and the high-low speed sliding sleeve is positioned between the four-gear driven duplex gear and the low-speed driven duplex gear.
Further, the second-gear driving gear is meshed with the second-gear driven duplex gear; the first-gear driving gear is meshed with the first-gear driven duplex gear; the three-gear driving duplex gear is meshed with the three-gear driven gear; the four-gear driving duplex gear is meshed with the four-gear driven duplex gear; the low-speed driving gear is meshed with the low-speed driven duplex gear.
Further, the second gear driving gear and the first gear driving gear are fixedly connected with the first shaft through a spline.
Further, the three-gear driving double gear, the four-gear driving double gear and the low-speed driving gear are rotationally connected with a shaft through needle bearings, wherein the four-gear driving double gear and the low-speed driving gear are integrated into a whole, and the whole is installed on the shaft.
Further, the second-gear driven duplex gear and the first-gear driven duplex gear are rotationally connected with the third-gear driven gear shaft through needle bearings.
Further, the three-gear driven gear and the four-gear driven duplex gear are fixedly connected with a three-gear driven gear shaft through a spline.
Further, the low-speed driven duplex gear is rotationally connected with the two shafts through needle bearings, and main teeth are arranged at the end parts of the two shafts.
Further, the first gear sliding sleeve is meshed with the second gear driven duplex gear and the first gear driven duplex gear respectively when sliding leftwards and rightwards.
Further, the three-fourth gear sliding sleeve is respectively meshed with the three-gear driving duplex gear and the four-gear driving duplex gear when sliding leftwards and rightwards.
Further, the high-low speed sliding sleeve is meshed with the four-gear driven duplex gear and the low-speed driven duplex gear respectively when sliding left and right.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
the utility model gets rid of traditional sliding gear shifting, replaces a gear-meshing sliding sleeve shifting mode, the number of gears after improvement in gear design is less than that of gears in traditional design, the gear number can still be kept unchanged through the gearbox after the change, the tractor operation is more flexible and convenient, the burden of a driver is greatly reduced, and the operation efficiency is improved.
The sliding sleeve gear shifting mode is simple in sliding sleeve gear shifting operation, the impact area of a gear shifting bearing is increased, the impact force during gear shifting is reduced, and the service life of a gear shifting element is prolonged due to the fact that meshing teeth are short. The gear shifting mode has small angular speed difference between the gear shifting mechanism connecting pieces, so that the sliding sleeve is adopted for gear shifting, the manufacturing cost can be reduced, the length of the transmission can be reduced, and the service life of the gear can be prolonged.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present utility model.
In the figure, a 1-second gear driving gear, a 2-second gear driven duplex gear, a 3-first gear driving gear, a 4-first gear driven duplex gear, a 5-third gear driving duplex gear, a 6-third gear driven gear, a 7-fourth gear driving duplex gear, an 8-fourth gear driven duplex gear, a 9-low speed driving gear, a 10-low speed driven duplex gear, an 11-second gear sliding sleeve, a 12-third and fourth gear sliding sleeve, a 13-high and low speed sliding sleeve, a 14-main gear, a 15-first shaft, a 16-third gear driven gear shaft, a 17-second shaft and a 18-box body.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
As shown in FIG. 1, the utility model provides a transmission system of a medium horsepower tractor gearbox, which comprises a box body 18 fixedly arranged, wherein a first shaft 15 and a second shaft 17 which are rotatably connected with the box body 18 are penetrated in the box body, the first shaft 15 and the second shaft 17 are arranged in parallel, and a three-gear driven gear shaft 16 is sleeved on the second shaft 17.
A second gear driving gear 1, a first gear driving gear 3, a third gear driving duplex gear 5, a third and fourth gear sliding sleeve 12, a fourth gear driving duplex gear 7 and a low-speed driving gear 9 are sequentially arranged on the first shaft 15. The third and fourth gear sliding sleeve 12 is respectively meshed with the third gear driving duplex gear 5 and the fourth gear driving duplex gear 7 when sliding leftwards and rightwards.
The three-gear driven gear shaft 16 is sequentially provided with a two-gear driven duplex gear 2, a two-gear sliding sleeve 11, a first-gear driven duplex gear 4, a three-gear driven gear 6 and a four-gear driven duplex gear 8, and the two-gear sliding sleeve 11 is respectively meshed with the two-gear driven duplex gear 2 and the first-gear driven duplex gear 4 when sliding left and right.
The second-gear driving gear 1 is meshed with the second-gear driven duplex gear 2, the first-gear driving gear 3 is meshed with the first-gear driven duplex gear 4, the third-gear driving duplex gear 5 is meshed with the third-gear driven gear 6, the fourth-gear driving duplex gear 7 is meshed with the fourth-gear driven duplex gear 8, and the low-speed driving gear 9 is meshed with the low-speed driven duplex gear 10.
The two shafts 17 are also sleeved with a high-low speed sliding sleeve 13 and a low-speed driven duplex gear 10, the high-low speed sliding sleeve 13 is positioned between the four-gear driven duplex gear 8 and the low-speed driven duplex gear 10, and the high-low speed sliding sleeve 13 is respectively meshed with the four-gear driven duplex gear 8 and the low-speed driven duplex gear 10 when sliding leftwards and rightwards.
The second-gear driving gear 1 and the first-gear driving gear 3 are fixedly connected with the first shaft 15 through splines, the third-gear driving double gear 5, the fourth-gear driving double gear 7 and the low-speed driving gear 9 are rotatably connected with the first shaft 15 through needle bearings, wherein the fourth-gear driving double gear 7 and the low-speed driving gear 9 are integrated into a whole, and the whole is arranged on the first shaft 15.
The second-gear driven duplex gear 2 and the first-gear driven duplex gear 4 are rotatably connected with a third-gear driven gear shaft 16 through needle bearings; the three-gear driven gear 6 and the four-gear driven duplex gear 8 are fixedly connected with a three-gear driven gear shaft 16 through splines.
The low-speed driven double gear 10 is rotatably connected with the two shafts 17 through needle bearings.
The end of the two shafts 17 is provided with main teeth 14.
The specific working principle of the utility model is as follows:
when the first-gear sliding sleeve 11 slides leftwards, the first-gear sliding sleeve 11 is meshed with the first-gear driven duplex gear 4, the first-gear driven duplex gear 2 is fixedly connected with the third-gear driven gear shaft 16, the transmission system of the gearbox is in a first-gear state, and when the first-gear sliding sleeve 11 slides rightwards, the first-gear sliding sleeve is meshed with the first-gear driven duplex gear 4, and the transmission system of the gearbox is in a first-gear state; similarly, when the third and fourth gear sliding sleeve 12 slides leftwards and rightwards, the third and fourth gear sliding sleeve is respectively meshed with the third gear driving duplex gear 5 and the fourth gear driving duplex gear 7, and a transmission system of the gearbox is in a third gear and fourth gear state.
The high-low speed sliding sleeve 13 is meshed with the four-gear driven duplex gear 8 when sliding leftwards, at the moment, the two shafts 17 output power in a high-speed mode, and the high-low speed sliding sleeve 13 is meshed with the low-speed driven duplex gear 10 when sliding rightwards, at the moment, the two shafts 17 output power in a low-speed mode.
The utility model can realize the switching of 8 gears:
1-gear low-speed implementation mode: the first-gear driving gear 3 is driven by the first-gear shaft 15 to rotate, the first-gear sliding sleeve 11 is meshed right, the first-gear driving gear 3 drives the first-gear driven duplex gear 4 to rotate, the first-gear driven duplex gear 4 drives the third-gear driven gear shaft 16 and the fourth-gear driven duplex gear 8 to rotate together, the high-speed sliding sleeve 13 is meshed right, the fourth-gear driven duplex gear 8 drives the fourth-gear driving duplex gear 7 and the low-speed driving gear 9 to rotate at the moment, the low-speed driving gear 9 drives the low-speed duplex gear 10 to rotate, and the low-speed duplex gear 10 and the two shafts 17 are integrated into a whole at the moment due to the meshing of the high-speed sliding sleeve 13, and the two shafts 17 output power at a low speed at the moment;
1-gear high-speed implementation mode: the first-gear driving gear 3 is driven by the first shaft 15 to rotate, the first-gear sliding sleeve 11 is meshed to the right, the first-gear driving gear 3 drives the first-gear driven duplex gear 4 to rotate, the first-gear driven duplex gear 4 drives the third-gear driven gear shaft 16 and the fourth-gear driven duplex gear 8 to rotate together, the high-speed sliding sleeve 13 is meshed to the left, at the moment, the fourth-gear driven duplex gear 8 and the second shaft 17 are integrated into a whole, and the second shaft 17 outputs power at a high speed.
2. The 3 rd gear switching mode is the same as the 1 st gear principle.
4-gear low-speed implementation mode: the third and fourth gear sliding sleeve 12 is meshed right, the fourth gear driving duplex gear 7 transmits power to the low-speed driving gear 9, the high and low speed sliding sleeve 13 is meshed right, the low-speed driving gear 9 drives the low-speed driven duplex gear 10 to rotate, and the two shafts 17 output power at low speed;
4-gear high-speed implementation mode: the third and fourth gear sliding sleeve 12 is meshed to the right, the fourth gear driving duplex gear 7 transmits power to the fourth gear driven duplex gear 8, the high and low speed sliding sleeve 13 is meshed to the left, and the two shafts 17 output power at high speed.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (10)
1. A medium horsepower tractor gearbox drive system comprising a fixedly arranged box (18), characterized in that: a first shaft (15) and a second shaft (17) which are rotationally connected with the box body (18) are penetrated in the box body, the first shaft (15) and the second shaft (17) are arranged in parallel, and a three-gear driven gear shaft (16) is sleeved on the second shaft (17);
a second-gear driving gear (1), a first-gear driving gear (3), a third-gear driving duplex gear (5), a third-fourth-gear sliding sleeve (12), a fourth-gear driving duplex gear (7) and a low-speed driving gear (9) are sequentially arranged on the first shaft (15);
a second-gear driven duplex gear (2), a first-gear sliding sleeve (11), a first-gear driven duplex gear (4), a third-gear driven gear (6) and a fourth-gear driven duplex gear (8) are sequentially arranged on the third-gear driven gear shaft (16);
the two shafts (17) are also sleeved with a high-low speed sliding sleeve (13) and a low-speed driven duplex gear (10), and the high-low speed sliding sleeve (13) is positioned between the four-gear driven duplex gear (8) and the low-speed driven duplex gear (10).
2. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the second-gear driving gear (1) is meshed with the second-gear driven duplex gear (2); the first-gear driving gear (3) is meshed with the first-gear driven duplex gear (4); the three-gear driving duplex gear (5) is meshed with the three-gear driven gear (6); the four-gear driving duplex gear (7) is meshed with the four-gear driven duplex gear (8); the low-speed driving gear (9) is meshed with the low-speed driven duplex gear (10).
3. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the second gear driving gear (1) and the first gear driving gear (3) are fixedly connected with a first shaft (15) through a spline.
4. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the three-gear driving duplex gear (5), the four-gear driving duplex gear (7) and the low-speed driving gear (9) are rotationally connected with a shaft (15) through needle bearings, wherein the four-gear driving duplex gear (7) and the low-speed driving gear (9) are integrated into a whole, and the whole is arranged on the shaft (15).
5. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the second-gear driven duplex gear (2) and the first-gear driven duplex gear (4) are rotationally connected with a third-gear driven gear shaft (16) through needle bearings.
6. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the three-gear driven gear (6) and the four-gear driven duplex gear (8) are fixedly connected with a three-gear driven gear shaft (16) through a spline.
7. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the low-speed driven duplex gear (10) is rotationally connected with a two-shaft (17) through a needle bearing, and a main tooth (14) is arranged at the end part of the two-shaft (17).
8. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the first gear sliding sleeve (11) is meshed with the second gear driven duplex gear (2) and the first gear driven duplex gear (4) when sliding leftwards and rightwards.
9. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the third and fourth gear sliding sleeve (12) is meshed with the third gear driving duplex gear (5) and the fourth gear driving duplex gear (7) respectively when sliding leftwards and rightwards.
10. The medium horsepower tractor gearbox transmission system of claim 1, wherein: the high-low speed sliding sleeve (13) is meshed with the four-gear driven duplex gear (8) and the low-speed driven duplex gear (10) respectively when sliding left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902258.1U CN220248828U (en) | 2023-07-19 | 2023-07-19 | Transmission system of medium horsepower tractor gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902258.1U CN220248828U (en) | 2023-07-19 | 2023-07-19 | Transmission system of medium horsepower tractor gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248828U true CN220248828U (en) | 2023-12-26 |
Family
ID=89227863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321902258.1U Active CN220248828U (en) | 2023-07-19 | 2023-07-19 | Transmission system of medium horsepower tractor gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248828U (en) |
-
2023
- 2023-07-19 CN CN202321902258.1U patent/CN220248828U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107202139B (en) | Speed-changing moment-reducing transfer case | |
| CN201071906Y (en) | Hydraulic reversing transmission of minitype loader | |
| CN220248828U (en) | Transmission system of medium horsepower tractor gearbox | |
| CN211009793U (en) | Electric vehicle speed reducer assembly with disconnecting mechanism | |
| CN116857327A (en) | Transmission system of medium horsepower tractor gearbox | |
| CN219806704U (en) | Six-gear pure electric assembly with coaxially arranged double main drive motors and two intermediate shafts | |
| CN206972839U (en) | A kind of two grades of gearboxes of high-pressure pump | |
| CN201714927U (en) | Gearbox transmission device of tractor | |
| CN210890009U (en) | Automatic double-gear speed-changing power device | |
| CN201763900U (en) | Mechanical gearbox for forklift | |
| CN2608764Y (en) | Mechanical gear shifting street roller gear box having synchronizer | |
| CN202065322U (en) | Main variable speed shaft of tractor gearbox | |
| CN2916262Y (en) | Tractor transmission mechanism | |
| CN202520900U (en) | Multi-gear mechanical gear box | |
| CN220816443U (en) | Hydraulic drive three-gear transmission for harvesting machinery | |
| CN218953941U (en) | Harvester gearbox of vertical overall arrangement | |
| CN212672335U (en) | Structure-updated three-in three-out gear engineering mechanical gearbox | |
| CN2388065Y (en) | Driving unit of motortricycle | |
| CN216306617U (en) | Power output transmission mechanism of tractor gearbox | |
| CN216306668U (en) | Power output gear shifting mechanism of stepless speed change tractor gearbox | |
| CN212839278U (en) | Side three-wheel shaft transmission device for converting left output of engine into right output | |
| CN218408387U (en) | High-speed-ratio gearbox | |
| CN202851864U (en) | Motorcycle gearbox assembly | |
| CN220828492U (en) | Power shift tractor transmission system | |
| CN221145182U (en) | Six-gear transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |