CN210526300U - Agricultural tractor transfer transmission assembly - Google Patents
Agricultural tractor transfer transmission assembly Download PDFInfo
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- CN210526300U CN210526300U CN202020534372.3U CN202020534372U CN210526300U CN 210526300 U CN210526300 U CN 210526300U CN 202020534372 U CN202020534372 U CN 202020534372U CN 210526300 U CN210526300 U CN 210526300U
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Abstract
The utility model provides a transfer transmission assembly of an agricultural tractor, which comprises a transfer case body, a power input assembly and a power output assembly, wherein the power input assembly comprises an intermediate shaft and an intermediate gear, the center of the inner wall of the intermediate gear is provided with a first retaining ring, two first bearings are arranged at two sides of the first retaining ring, and two ends of the intermediate shaft are sleeved with isolation sleeves; the power output assembly comprises a power output shaft, a power output gear and an oil seal seat, two ends of the power output gear axially extend outwards to form a limiting part which is in contact with the end face of the inner ring of the second bearing, the power output shaft penetrates through the oil seal seat and extends out of the transfer case, the end part of the oil seal seat is in contact with the end part of the outer ring of the second bearing at the left end, and an oil seal is arranged between the inner wall of the oil seal seat and the power output shaft. The utility model discloses agricultural tractor transfer transmission assembly, compact structure, loading and unloading are convenient, the installation accuracy is high and the operation is effectual.
Description
Technical Field
The utility model relates to an agricultural tractor, in particular to an agricultural tractor transfer transmission assembly.
Background
With the development of industry, the progress of agriculture is also obviously improved, various devices appear, the traditional cattle cultivation and manual initialization production are replaced, the production efficiency is greatly improved, a walking tractor is taken as an example, the walking tractor is a transportation tool and agricultural machinery popular in villages and towns in China, and a diesel engine is taken as power, so that the walking tractor is popular with farmers due to the characteristics of small size, flexibility and strong power. The drive type, the traction type, and the combined drive and traction type are classified according to the working performance. The driving type is mainly matched with the rotary cultivator for operation, so the machine is also called a power cultivator; the traction type is mainly matched with traction type farm tools for operation; the dual-purpose type can be matched with a rotary cultivator for operation, and can be matched with a traction farm tool for operation or matched with a trailer for transportation operation. In order to improve the application range of the agricultural tractor and enable the agricultural tractor to be suitable for various working environments, a transfer case is usually arranged on a transmission system, and the traditional transfer case is influenced by the structure, inconvenient to assemble, low in assembly precision, and inconvenient to maintain and maintain, and the stability and reliability of operation are influenced.
SUMMERY OF THE UTILITY MODEL
【1】 Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide a compact structure, convenient and high agricultural tractor transfer transmission assembly of precision of loading and unloading.
【2】 Technical scheme for solving problems
The utility model provides an agricultural tractor transfer transmission assembly, include:
the transfer case body 17 is internally provided with a mounting cavity in a forming mode, the mounting cavity is provided with a first opening for power input and a second opening for power output, and the side wall of the transfer case body is provided with a flange for connecting with a gearbox;
the power input assembly comprises an intermediate shaft 37 fixed at the first opening end and an intermediate gear 9 rotatably mounted on the intermediate shaft through a first bearing 36, wherein an annular clamping groove is formed in the center of the inner wall of the intermediate gear 9, a first retaining ring 41 is clamped in the annular clamping groove, the two first bearings 36 are positioned on two sides of the first retaining ring 41, the first retaining ring 41 is in end face contact with the outer ring of the first bearing 36, two ends of the intermediate shaft 37 are sleeved with isolating sleeves 39, and two ends of each isolating sleeve 39 are respectively in contact with the inner ring of the first bearing 36 and the inner wall of the first opening;
the power output assembly comprises a power output shaft 13 which is rotatably installed in the installation cavity through a second bearing 16 and is parallel to the intermediate shaft 37, a power output gear 18 which is installed on the power output shaft 13 and is meshed with the intermediate gear 9, and an oil seal seat 22 which is installed at a second opening end, wherein two ends of the power output gear 18 axially extend outwards to form a limiting part 181 which is in contact with the end face of an inner ring of the second bearing 16, the power output shaft 13 penetrates through the oil seal seat and extends out of the transfer case 17, the end part of the oil seal seat 22 is in contact with the end part of an outer ring of the second bearing at the left end of the power output gear 18, and an oil seal 20 is arranged between the inner wall of the oil seal seat 22 and the power output shaft 18.
Further, a first paper pad is arranged between the contact surface of the oil seal seat 22 and the transfer case 17, and the surface of the first paper pad is coated with sealing paint.
Furthermore, a third opening coaxial with the second opening is further formed in the side wall of the mounting cavity, a bearing cover 12 is fixed to the third opening through a screw, an annular protrusion in contact with the outer ring end face of the second bearing 16 at the right end of the power output gear 18 is arranged on the bearing cover 12, a second paper pad 15 is arranged between the contact face of the bearing cover 12 and the transfer case 17, and sealing paint is coated on the surface of the second paper pad 15.
Further, the power output shaft 13 comprises a first shaft body, a second shaft body and a third shaft body which are sequentially connected and have sequentially reduced diameters, the second bearing 16 comprises a left bearing mounted on the first shaft body and a right bearing mounted on the third shaft body, a second check ring is arranged at the end part of the third shaft body, and the second check ring is in contact with the end face of the inner ring of the right bearing; the power output gear 18 is mounted on the second shaft body through a spline, and the first shaft body extends out of the transfer case 17 and is connected with a coupler 27.
Further, the coupling 27 is a ball coupling.
Further, a coupler shield 24 is detachably mounted at the second opening end, and the coupler 27 is located in the coupler shield 24.
Further, the first bearing 36 and/or the second bearing 16 are two-way angular contact thrust ball bearings.
Further, the number of teeth of the intermediate gear 9 is the same as that of the power output gear 18.
The transfer case 17 includes a first case and a second case fixed to the first case by bolts, the first opening is provided in the first case, and the second opening is provided in the second case.
【3】 Advantageous effects
The utility model discloses agricultural tractor transfer drive assembly adopts split type structure, has reduced manufacturing cost, and the equipment is convenient and fast, does benefit to routine maintenance; a plurality of positioning components are arranged, so that the assembly efficiency and precision are improved, and the stability and reliability of operation are improved; the utility model discloses agricultural tractor transfer transmission assembly, compact structure, loading and unloading are convenient, the installation accuracy is high and the operation is effectual.
Drawings
FIG. 1 is a schematic structural view of the transfer transmission assembly of the agricultural tractor of the present invention;
FIG. 2 is a schematic view of the installation of the intermediate gear of the transfer transmission assembly of the agricultural tractor of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 1.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the utility model provides a transfer transmission assembly of an agricultural tractor, which comprises a transfer case body 17, and a power input assembly and a power output assembly which are arranged in the transfer case body 17;
the following describes each component in detail;
the transfer case 17 is used as a mounting carrier for mounting other parts, a mounting cavity is formed in the transfer case 17, a first opening for power input and a second opening for power output are arranged on the mounting cavity, the first opening is arranged upwards, the second opening is arranged towards the left, in order to reduce the production cost and facilitate assembly, in the embodiment, the transfer case 17 comprises a first case body and a second case body, the second case body is fixed on the first case body through bolts, a paper pad is arranged between the contact surfaces of the first case body and the second case body, the surface of the paper pad is coated with sealing paint to improve the service life and the sealing property of the paper pad, the first opening is arranged on the first case body, the second opening is arranged on the second case body, meanwhile, in order to facilitate assembly, a third opening is also arranged on the second case body, the third opening is arranged coaxially with the second opening, a bearing cover 12 is fixed on the third opening, a second paper pad 15 is arranged between the contact surface of the bearing cover 12 and the transfer case body 17, the surface of the second paper pad 15 is coated with sealing paint, and a flange used for connecting with a gearbox is arranged on the side wall of the transfer case body 17 and is arranged on the first case body in the embodiment.
The power input assembly is used for power input and is used for being connected with a gear on a gearbox, and specifically comprises an intermediate shaft 37 and an intermediate gear 9, wherein the intermediate shaft 37 is fixed at a first opening end, the axis of the intermediate shaft 37 is perpendicular to the opening direction of the first opening, the intermediate shaft is axially fixed through a locking bolt 38, in order to improve reliability, the locking bolt is provided with a locking nut 40, the intermediate gear 9 is rotatably installed on the intermediate shaft 37 through two first bearings 36, in the embodiment, the teeth of the upper end part of the intermediate gear 9 are positioned outside the transfer case 17, preferably, the teeth of 1/5-1/3 on the intermediate gear 9 are positioned outside the case, the center of the inner wall of the intermediate gear 9 is provided with an annular clamping groove, a first retaining ring 41 is clamped in the annular clamping groove, the two first bearings 36 are respectively positioned at two sides of the first retaining ring 41, and the first retaining ring 41 is in end face contact with the outer, meanwhile, two ends of the intermediate shaft 37 are sleeved with isolating sleeves 39, and two ends of each isolating sleeve 39 are respectively in contact with the inner ring of the first bearing 36 and the inner wall of the first opening, so that the intermediate gear 9 can be accurately installed, and the working stability and reliability of the intermediate gear are improved.
The power output assembly is used for outputting power and is connected with the power input assembly, and specifically comprises a power output shaft 13, a power output gear 18 and an oil seal seat 22, wherein the power output shaft 13 is rotatably installed in an installation cavity through two second bearings 16, is parallel to an intermediate shaft 37 and is coaxial with a second opening and a third opening, the power output gear 18 is installed on the power output shaft 13 and is meshed with the intermediate gear 9, in the embodiment, the intermediate gear 9 and the power output gear 18 have the same tooth number, so the rotating speed is the same, the oil seal seat 22 is detachably installed on the second opening through bolts, the power output shaft 13 comprises a first shaft body, a second shaft body and a third shaft body which are sequentially connected and have sequentially reduced diameters, the second bearings 16 comprise a left bearing installed on the first shaft body and a right bearing installed on the third shaft body, and a second retainer ring is arranged at the end part of the third shaft body, the second retainer ring is contacted with the end face of the inner ring of the right bearing, meanwhile, the right end face of the outer ring of the right bearing is contacted with the annular bulge on the bearing cover 12, the power output gear 18 is installed on the second shaft body through a spline, two ends of the power output gear 18 axially extend outwards to form a limiting part 181 contacted with the end faces of the inner rings of the two second bearings 16, so as to realize accurate positioning in the axial direction, the first shaft body passes through the oil seal seat 22 and extends out of the transfer case 17, the end part of the oil seal seat 22 is contacted with the end part of the outer ring of the left bearing, an oil seal 20 is arranged between the inner wall of the oil seal seat 22 and the outer wall of the first shaft body, in the embodiment, two oil seals 20 are arranged, a first paper pad is arranged between the contact faces of the oil seal seat 22 and the transfer case 17, the surface of the first paper pad is coated with seal paint, so that the sealing performance can be improved, a coupler shield 24 is detachably mounted at the second opening end, the coupler shield 24 is cylindrical as a whole, and the coupler is positioned in the coupler shield 24 and used for improving safety; in order to further improve the operation stability and reliability, the first bearing 36 and the second bearing 16 in the present embodiment both use a two-way angular contact thrust ball bearing, which is characterized by being capable of simultaneously bearing the combined load of the radial load and the axial load, and limiting the axial displacement of the shaft in both directions. It is composed of outer ring, inner ring, steel ball and retainer, and can stably work at higher speed.
The utility model discloses agricultural tractor transfer drive assembly adopts split type structure, has reduced manufacturing cost, and the equipment is convenient and fast, does benefit to routine maintenance; a plurality of positioning components are arranged, so that the assembly efficiency and precision are improved, and the stability and reliability of operation are improved; the utility model discloses agricultural tractor transfer transmission assembly, compact structure, loading and unloading are convenient, the installation accuracy is high and the operation is effectual.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An agricultural tractor transfer transmission assembly, characterized by, includes:
the transfer case body is internally provided with a mounting cavity in a forming mode, the mounting cavity is provided with a first opening for power input and a second opening for power output, and the side wall of the transfer case body is provided with a flange for connecting with a gearbox;
the power input assembly comprises an intermediate shaft fixed at the first opening end and an intermediate gear rotationally mounted on the intermediate shaft through a first bearing, wherein an annular clamping groove is formed in the center of the inner wall of the intermediate gear, a first retaining ring is clamped in the annular clamping groove, the two first bearings are positioned on two sides of the first retaining ring, the first retaining ring is in end face contact with the outer ring of the first bearing, isolating sleeves are sleeved at two ends of the intermediate shaft, and two ends of each isolating sleeve are respectively in contact with the inner ring of the first bearing and the inner wall of the first opening;
the power output assembly comprises a power output shaft which is rotatably installed in the installation cavity through a second bearing and is parallel to the intermediate shaft, a power output gear which is installed on the power output shaft and is meshed with the intermediate gear, and an oil seal seat which is installed at the second opening end, wherein two ends of the power output gear axially extend outwards to form a limiting part which is in end face contact with the inner ring of the second bearing, the power output shaft penetrates through the oil seal seat and extends out of the transfer case, the end part of the oil seal seat is in end face contact with the outer ring of the second bearing at the left end of the power output gear, and an oil seal is arranged between the inner wall of the oil seal seat and the power output shaft.
2. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: a first paper pad is arranged between the contact surface of the oil seal seat and the transfer case body, and sealing paint is coated on the surface of the first paper pad.
3. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: the side wall of the mounting cavity is further provided with a third opening coaxial with the second opening, a bearing cover is fixed on the third opening through a screw, an annular bulge in contact with the outer ring end face of the second bearing at the right end of the power output gear is arranged on the bearing cover, a second paper pad is arranged between the bearing cover and the contact face of the transfer case, and sealing paint is coated on the surface of the second paper pad.
4. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: the power output shaft comprises a first shaft body, a second shaft body and a third shaft body which are sequentially connected and have sequentially reduced diameters, the second shaft body comprises a left bearing arranged on the first shaft body and a right bearing arranged on the third shaft body, a second check ring is arranged at the end part of the third shaft body, and the second check ring is in contact with the end surface of an inner ring of the right bearing; the power output gear is installed on the second shaft body through a spline, and the first shaft body extends out of the transfer case body and is connected with a coupler.
5. An agricultural tractor transfer gear assembly as defined in claim 4, wherein: the shaft coupling is a ball shaft coupling.
6. An agricultural tractor transfer gear assembly as defined in claim 4, wherein: and a coupler shield is detachably mounted at the second opening end, and the coupler is positioned in the coupler shield.
7. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: the first bearing and/or the second bearing are/is a bidirectional thrust angular contact ball bearing.
8. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: the number of teeth of the intermediate gear is the same as that of the power output gear.
9. An agricultural tractor transfer gear assembly as defined in claim 1, wherein: the transfer case comprises a first case body and a second case body fixed on the first case body through bolts, wherein the first opening is formed in the first case body, and the second opening is formed in the second case body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534372.3U CN210526300U (en) | 2020-04-13 | 2020-04-13 | Agricultural tractor transfer transmission assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534372.3U CN210526300U (en) | 2020-04-13 | 2020-04-13 | Agricultural tractor transfer transmission assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210526300U true CN210526300U (en) | 2020-05-15 |
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ID=70609559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020534372.3U Active CN210526300U (en) | 2020-04-13 | 2020-04-13 | Agricultural tractor transfer transmission assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210526300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803439A (en) * | 2021-09-28 | 2021-12-17 | 重庆綦同汽车配件有限责任公司 | Front power takeoff |
-
2020
- 2020-04-13 CN CN202020534372.3U patent/CN210526300U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803439A (en) * | 2021-09-28 | 2021-12-17 | 重庆綦同汽车配件有限责任公司 | Front power takeoff |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHETUO BENYE (NINGBO) TRACTOR MANUFACTURING Co.,Ltd. Assignor: NINGBO BENYE HEAVY INDUSTRY Co.,Ltd. Contract record no.: X2021330000242 Denomination of utility model: Transfer transmission assembly of agricultural tractor Granted publication date: 20200515 License type: Common License Record date: 20210904 |
|
| EE01 | Entry into force of recordation of patent licensing contract |