CN212643451U - Tractor front power output mechanism - Google Patents
Tractor front power output mechanism Download PDFInfo
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- CN212643451U CN212643451U CN202021512237.5U CN202021512237U CN212643451U CN 212643451 U CN212643451 U CN 212643451U CN 202021512237 U CN202021512237 U CN 202021512237U CN 212643451 U CN212643451 U CN 212643451U
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Abstract
The utility model relates to a transmission, specific power take off mechanism before tractor that says so. Comprises a power input shaft, a power transmission shaft, a power output shaft and a reverse intermediate shaft. An input driving gear and a reverse driving gear are arranged on the power input shaft. The power transmission shaft is provided with a low-gear driving gear, a high-gear driving gear, an input driven gear, a first meshing sleeve and a reverse driven gear. The input driven gear is meshed with the input driving gear. The reverse intermediate shaft is provided with a reverse intermediate gear which is respectively meshed with the reverse driving gear and the reverse driven gear. The power output shaft is provided with a high-grade driven gear and a low-grade driven gear which are respectively engaged with the high-grade driving gear and the low-grade driving gear, and a second engaging sleeve is arranged between the high-grade driven gear and the low-grade driven gear. The utility model improves the working efficiency of the agricultural implement; the structure is more compact, and the occupied space is smaller; can meet the requirements of the agricultural implement on multi-gear selection during working.
Description
Technical Field
The utility model relates to a transmission, specific power take off mechanism before tractor that says so.
Background
With the development of rural economy and agricultural mechanization, the operation range of agricultural machinery is continuously expanded, and the participation of the agricultural machinery cannot be avoided in each link from cultivation to harvest. Most of power sources for the operation of the agricultural implements are from tractors, however, power output mechanisms for connecting the tractors and the agricultural implements are complex in structure and few in selectable gears.
Disclosure of Invention
The utility model discloses a power take off mechanism before tractor, the utility model discloses compact structure, occupation space is little, can satisfy the requirement that agricultural implement during operation was selected to many gears.
The utility model relates to a power take-off mechanism before tractor, including power input shaft, power transmission shaft, power output shaft and reverse gear jackshaft. An input driving gear and a reverse driving gear are sequentially arranged on the power input shaft from front to back. The power transmission shaft is sequentially provided with a low-gear driving gear, a high-gear driving gear, an input driven gear, a first meshing sleeve and a reverse driven gear from front to back. The input driven gear is engaged with the input driving gear. And the reverse intermediate shaft is provided with a reverse intermediate gear which is respectively meshed with the reverse driving gear and the reverse driven gear. The power output shaft is provided with a high-grade driven gear and a low-grade driven gear which are respectively meshed with the high-grade driving gear and the low-grade driving gear, and a second meshing sleeve is arranged between the high-grade driven gear and the low-grade driven gear.
Preferably, the power transmission shaft is composed of a power output transmission shaft and a high-low gear shaft, the high-gear driving gear and the low-gear driving gear are mounted on the high-low gear shaft, and the input driven gear, the first meshing sleeve and the reverse driven gear are mounted on the power output transmission shaft.
Preferably, the power output transmission shaft and the high-low gear shaft are connected through a spline sleeve.
Preferably, the front end of the power output transmission shaft is provided with an external spline, the high-low gear shaft is of a hollow structure, the rear end of the high-low gear shaft is provided with an internal spline matched with the external spline, and the power output transmission shaft and the high-low gear shaft are connected in a manner that the external spline is meshed with the internal spline.
Preferably, the high gear driving gear and the low gear driving gear are integrally formed with the high-low gear shaft.
Preferably, the input drive gear and the reverse drive gear are splined to the power input shaft. The first meshing sleeve, the high-gear driving gear and the low-gear driving gear are mounted on the power transmission shaft through splines, and the input driven gear and the reverse driven gear are sleeved on the power transmission shaft in a hollow mode through needle bearings. The second meshing sleeve is mounted on the power output shaft through a spline, and the high-gear driven gear and the low-gear driven gear are sleeved on the power output shaft in a hollow mode through a needle bearing.
Preferably, the rear end of the power input shaft is connected with a front end spline of the clutch output shaft through a variable-diameter spline sleeve and then connected to the engine through the clutch, and the diameter of the rear end of the power input shaft is smaller than that of the front end of the clutch output shaft.
Preferably, the clutch is a wet clutch.
The utility model has the advantages that: the utility model improves the working efficiency of the agricultural implement; the structure is more compact, and the occupied space is smaller; can meet the requirements of the agricultural implement on multi-gear selection during working.
Drawings
The invention will be further explained with reference to the accompanying drawings, which are simplified schematic drawings and are only schematic illustrations of the basic structure of the invention and do not constitute a limitation of the invention:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of the junction of the power take-off drive shaft and the high and low gear shafts according to a second embodiment of the present invention;
in the figure: 1. the power output shaft comprises a power input shaft, 11, an input driving gear, 12, a reverse driving gear, 2, a power transmission shaft, 21, a power output transmission shaft, 22, a high-low gear shaft, 201, an input driven gear, 202, a reverse driven gear, 203, a first meshing sleeve, 204, a high-gear driving gear, 205, a low-gear driving gear, 210, an external spline, 220, an internal spline, 3, a power output shaft, 31, a high-gear driven gear, 32, a low-gear driven gear, 33, a second meshing sleeve, 4, a reverse intermediate shaft, 41, a reverse intermediate gear, 5, a variable-diameter spline sleeve, 6 and a clutch output shaft.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure, as the terms used are used to describe particular embodiments only, and are not intended to limit the exemplary embodiments based on the disclosure.
The first embodiment:
as shown in figure 1, the utility model relates to a power take-off mechanism before tractor, including power input shaft 1, power transmission shaft 2, power output shaft 3 and reverse jackshaft 4. An input driving gear 11 and a reverse driving gear 12 are sequentially mounted on the power input shaft 1 from front to back. The power transmission shaft 2 is sequentially provided with a low-gear driving gear, a high-gear driving gear 204, an input driven gear 201, a first meshing sleeve 203 and a reverse driven gear 202 from front to back. The power transmission shaft 2 consists of a power output transmission shaft 21 and a high-low gear shaft 22 which are connected through a spline housing. The high gear driving gear 204 and the low gear driving gear are mounted on the high-low gear shaft 22, and the input driven gear 201, the first meshing sleeve 203 and the reverse driven gear 202 are mounted on the power output transmission shaft 21. The input driven gear 201 is engaged with the input driving gear 11. The reverse intermediate gear 41 is mounted on the reverse intermediate shaft 4 and respectively meshed with the reverse driving gear 12 and the reverse driven gear 202. The power output shaft 3 is provided with a high-gear driven gear 31 and a low-gear driven gear which are respectively meshed with the high-gear driving gear 204 and the low-gear driving gear, and a second meshing sleeve 33 is arranged between the high-gear driven gear 31 and the low-gear driven gear.
The input driving gear 11 and the reverse driving gear 12 are mounted on the power input shaft 1 through splines, the first meshing sleeve 203, the high-gear driving gear 204 and the low-gear driving gear 205 are mounted on the power transmission shaft 2 through splines, the input driven gear 201 and the reverse driven gear 202 are idly sleeved on the power transmission shaft 2 through needle bearings, the second meshing sleeve 33 is mounted on the power output shaft 3 through splines, and the high-gear driven gear 31 and the low-gear driven gear 32 are idly sleeved on the power output shaft 3 through needle bearings.
The rear end of the power input shaft 1 is connected with a front end spline of a clutch output shaft 6 through a variable diameter spline housing 5, and then is connected to an engine through a clutch, wherein the clutch is preferably a wet clutch. The diameter of the rear end of the power input shaft 1 is smaller than the diameter of the front end of the clutch output shaft 6.
The engine power is transmitted to the power input shaft 1 after being controlled by the clutch, and further an input driving gear 11 and a reverse driving gear 12 mounted on the power input shaft 1 are rotated. The input driving gear 11 drives the input driven gear 201 engaged therewith to rotate, and the reverse driving gear 12 drives the reverse intermediate gear 41 engaged therewith to rotate, thereby driving the reverse driven gear 202 engaged with the reverse intermediate gear 41 to rotate. The first meshing sleeve 203 is controlled by the gear shifting device to be meshed with the input driven gear 201, so that the input driven gear 201 drives the power output transmission shaft 21 to rotate synchronously. Since the power output transmission shaft 21 and the high-low gear shaft 22 are connected by the spline housing, the high-low gear shaft 22 rotates together with the power output transmission shaft 21, and the rotation of the high-low gear shaft 22 causes the high-gear driving gear 204 and the low-gear driving gear thereon to rotate simultaneously. The high-gear driving gear 204 and the low-gear driving gear drive the high-gear driven gear 31 and the low-gear driven gear engaged with the high-gear driving gear and the low-gear driving gear respectively to rotate. When the second meshing sleeve 33 and the high-grade driven gear 31 are controlled to be meshed with each other through the gear shifting device, the high-grade driven gear 31 and the power output shaft 3 rotate at the same time, and then power is transmitted to the agricultural implement to enable the agricultural implement to advance at a high speed; when the second meshing sleeve 33 and the low-gear driven gear are controlled to be meshed with each other through the gear shifting device, the low-gear driven gear 32 and the power output shaft 3 rotate in the same direction, and then power is transmitted to the agricultural implement, so that the agricultural implement moves forward at a low speed. Similarly, the first engaging sleeve 203 is controlled by the gear shifting device to engage with the reverse driven gear 202, and at this time, the reverse driven gear 202 and the power output transmission shaft 21 rotate in the same direction, so that the agricultural implement can move backward at a high speed or backward at a low speed.
Second embodiment:
as shown in fig. 2 and 3, in the first embodiment, the front end of the power output transmission shaft 21 is provided with the external spline 210, the high-low gear shaft 22 is of a hollow structure, and the rear end thereof is provided with the internal spline 220 matched with the external spline 210. The power output transmission shaft 21 and the high-low gear shaft 22 are connected by engaging the external splines 210 with the internal splines 220. The high gear drive gear 204 and the low gear drive gear are integrally formed with the high-low gear shaft 22.
The utility model discloses can make agricultural implement have the selection of four kinds of different gears that advance at a high speed, advance at a low speed, reverse at a high speed and reverse at a low speed, improve agricultural implement's work efficiency. Reverse gear driving gear 12 sets up on power input shaft 1, and reverse gear driven gear 202 sets up on power transmission shaft 2, makes the utility model discloses simple structure, compactness occupy less space under the prerequisite that realizes more gears to it is more convenient to operate. High-grade driving gear 204 and low-grade driving gear and high-low gear shaft 22 integrated into one piece have improved the intensity that high-grade driving gear 204 and low-grade driving gear can bear, simultaneously, can also reduce high-grade driving gear 204 and low-grade driving gear as far as and respectively rather than engaged with high-grade driven gear 31 and low-grade driven gear's diameter, make the utility model discloses a structure is compacter, and occupation space is littleer. The rear end diameter of power input shaft 1 is less than the front end diameter of clutch output shaft 6, but both carry out splined connection through the spline housing of reducing, can make equally the utility model discloses a structure is compacter, and occupation space is littleer.
In the description of the present invention, the terms describing the orientation such as "front end", "rear end", "from front to rear" are all used as references to the state observed in the cab when the present invention is installed at the front end of the tractor. And are used for the purpose of simplifying the description only and are not to be construed as limiting the invention.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a power take-off mechanism before tractor, includes power input shaft, power transmission shaft and power output shaft, its characterized in that: the power transmission shaft is provided with an input driving gear and a reverse driving gear in sequence from front to back, the power transmission shaft is provided with a low-gear driving gear, a high-gear driving gear, an input driven gear, a first meshing sleeve and a reverse driven gear in sequence from front to back, the input driven gear is meshed with the input driving gear, the reverse intermediate shaft is provided with a reverse intermediate gear which is meshed with the reverse driving gear and the reverse driven gear respectively, the power output shaft is provided with a high-gear driven gear and a low-gear driven gear which are meshed with the high-gear driving gear and the low-gear driving gear respectively, and a second meshing sleeve is arranged between the high-gear driven gear and the low-gear driven gear.
2. The tractor front power take off of claim 1, characterized by: the power transmission shaft is composed of a power output transmission shaft and a high-low gear shaft, the high-gear driving gear and the low-gear driving gear are mounted on the high-low gear shaft, and the input driven gear, the first meshing sleeve and the reverse gear driven gear are mounted on the power output transmission shaft.
3. The tractor front power take off of claim 2, characterized by: the power output transmission shaft is connected with the high-low gear shaft through a spline sleeve.
4. The tractor front power take off of claim 2, characterized by: the front end of the power output transmission shaft is provided with an external spline, the high-low gear shaft is of a hollow structure, the rear end of the high-low gear shaft is provided with an internal spline matched with the external spline, and the power output transmission shaft and the high-low gear shaft are connected in a mode that the external spline is meshed with the internal spline.
5. The tractor front power take off of claim 4, characterized by: the high-gear driving gear, the low-gear driving gear and the high-low gear shaft are integrally formed.
6. The tractor front power take off of claim 1, characterized by: the input driving gear and the reverse driving gear are mounted on the power input shaft through splines, the first meshing sleeve, the high-gear driving gear and the low-gear driving gear are mounted on the power transmission shaft through splines, the input driven gear and the reverse driven gear are sleeved on the power transmission shaft in an empty mode through needle bearings, the second meshing sleeve is mounted on the power output shaft through splines, and the high-gear driven gear and the low-gear driven gear are sleeved on the power output shaft in an empty mode through needle bearings.
7. A tractor front power take off according to any one of claims 1 to 6, characterised in that: the rear end of the power input shaft is connected with a front end spline of a clutch output shaft through a variable-diameter spline sleeve and then connected to an engine through a clutch, and the diameter of the rear end of the power input shaft is smaller than that of the front end of the clutch output shaft.
8. The tractor front power take off of claim 7, wherein: the clutch is a wet clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021512237.5U CN212643451U (en) | 2020-07-28 | 2020-07-28 | Tractor front power output mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021512237.5U CN212643451U (en) | 2020-07-28 | 2020-07-28 | Tractor front power output mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212643451U true CN212643451U (en) | 2021-03-02 |
Family
ID=74764140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021512237.5U Active CN212643451U (en) | 2020-07-28 | 2020-07-28 | Tractor front power output mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212643451U (en) |
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2020
- 2020-07-28 CN CN202021512237.5U patent/CN212643451U/en active Active
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