CN203418984U - Front drive axle of tractor - Google Patents
Front drive axle of tractor Download PDFInfo
- Publication number
- CN203418984U CN203418984U CN201320512958.XU CN201320512958U CN203418984U CN 203418984 U CN203418984 U CN 203418984U CN 201320512958 U CN201320512958 U CN 201320512958U CN 203418984 U CN203418984 U CN 203418984U
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- Prior art keywords
- speed reduction
- drive axle
- cylinder
- grades
- bearing
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses a front drive axle of a tractor, and belongs to the technical field of tractors. The front drive axle comprises a main speed reduction box shell, axle shaft shells and tail end transmission boxes, wherein the main speed reduction box shell, the axle shaft shells and the tail end transmission boxes are sequentially connected. Power is transmitted from the main speed reduction box shell to third-level speed reduction gear pairs inside the tail end transmission boxes through three-level speed reduction finally, third-level speed reduction driven gears of the third-level speed reduction gear pairs are connected to front axle shafts, a first bearing and a second bearing are arranged at the positions, on the two sides of the corresponding third-level speed reduction driven gear, of each front axle shaft, the first bearings are located on the outer sides of the third-level speed reduction driven gears and abut against the tail end transmission boxes, the third-level speed reduction driven gears abut against the first bearings, the second bearings abut against the third-level speed reduction driven gears, pressing plates abut against the second bearings and are axially fixed through fasteners, the fasteners are installed on the front axle shafts, and the optimal state is that each pressing plate is axially fixed through two bolts. The connecting strength of the front axle shafts is high, and accidents such as fractures can be prevented in the use process.
Description
Technical field
The utility model relates to trac. technical field, relates in particular to a kind of front drive axle of tractor.
Background technology
Trac. can be divided into two-wheel drive and four wheel drive by type of drive.Two-wheel drive refers to back-wheel drive, its propons have support body, turn to, the function such as walking.And tire all can be used as drive wheel before and after four-wheel drive tractor, front driving axle also has driving driving functions, it is the front-wheel auxiliary drive of four-wheel drive tractor, when trac. is under the bad working environments condition such as muddy, wet and slippery during operation, for improving the crossing ability of trac..
The power resources of f-w-d are in gear box of tractor, intermediary agency-auxiliary gear box by gear transmission power to change speed gear box bottom, by transmission shaft, transmission of power is arrived again to the input shaft of front driving axle, then through the tertiary gear in front driving axle, slow down, output power on the drive wheel of both sides, thereby drive advancing or retreating of front-wheel.
At present, on market, the axial restraint mode of the trac. drive axle of this horsepower of section adopts half baffle ring or special-purpose back-up ring mostly, axle drive shaft stress when stressed is too concentrated, easily cause axle drive shaft fracture, affect the safety of complete machine, and the steering cylinder that adopts of front driving axle is mostly side and installs, simultaneously with tierod, the problem of this kind of structure maximum is that ground gap is lower, affects the performance of passing through of trac..
Summary of the invention
Technical problem to be solved in the utility model is: a kind of front drive axle of tractor is provided, and the Joint strenght of its drive axle is high, uses reliable.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of front drive axle of tractor, comprise main speed reduction box housing, initiatively helical wheel is installed in described main speed reduction box housing, driven helical gear and diff, described main speed reduction box housing both sides are separately installed with semiaxis housing, in described semiaxis housing, be provided with semiaxis and be set in the sleeve pipe on described semiaxis, one end of described semiaxis is connected with described diff, the other end is connected with double reduction driving gear, the bearing of described double reduction driving gear leans vertically on described sleeve pipe, described double reduction driving gear is engaged with double reduction driven gear, described double reduction driven gear is installed on one end of key axle, the bearing of described double reduction driven gear is installed on described semiaxis housing, the outside of described semiaxis housing is hinged with terminal transmission box, in described terminal transmission box, be provided with three grades of speed reducing gear pairs, three grades of deceleration driving gears of described three grades of speed reducing gear pairs are installed on the other end of described key axle, three grades of deceleration driven gears of described three grades of speed reducing gear pairs are installed in drive axle, the both sides that described drive axle is positioned at described three grades of deceleration driven gears are respectively equipped with clutch shaft bearing and the second bearing, described clutch shaft bearing and the second bearing are all installed on described terminal transmission box, described clutch shaft bearing is positioned at described three grades of reducing gear outside and leans on described terminal transmission box inwall, described three grades of deceleration driven gears lean on described clutch shaft bearing, described the second bearing leans on described three grades of deceleration driven gears, on described the second bearing, leaned pressing plate, described pressing plate is fixing vertically by fastener, described fastener is installed in described drive axle.
As a kind of improvement, described fastener is bolt, on described pressing plate, by two described bolts, is fixed on vertically in described drive axle.
As a kind of improvement, the front portion of described main speed reduction box housing is provided with cavity, on described main speed reduction box housing, steering cylinder is installed, the cylinder barrel of described steering cylinder is positioned at described cavity, the cylinder barrel of described steering cylinder is positioned at the centre of described main speed reduction box housing on left and right directions, described steering cylinder is double acting double rod cylinder, described in two, piston rod is oppositely arranged, described in two, piston rod is connected with respectively steering track rod, and the end of described steering track rod is articulated with on the ear seat of described end reduction box casing.
As a kind of improvement, the height of one end that described steering track rod is connected with piston rod is higher than the height of the one end being connected with ear seat.
As a kind of improvement, the piston rod of described steering cylinder both sides outside is equipped with protective cover, and described protective cover is installed on described main speed reduction box housing.
As a kind of improvement, described steering track rod with described piston rod by turning to connecting ball head to be connected, described in turn to connecting ball head to adopt one closing in type connection structure.
As a kind of improvement, described main speed reduction box housing is installed with the cylinder support of the axial and circumferential position of the cylinder barrel of fixing described steering cylinder.
As a kind of improvement, described cylinder support has two, and is individually fixed in the two ends of the cylinder barrel of described steering cylinder, on two described cylinder supports, screw is all installed, and described screw is screwed in the fluting of described cylinder barrel two ends setting.
Owing to having adopted technique scheme, the power of driving engine is by three grades of final drive axle that arrive of slowing down, because clutch shaft bearing and second bearing of drive axle is installed on terminal transmission box, and the axial location of clutch shaft bearing and the second bearing is fixedly to lean on the second bearing by pressing plate, pressing plate is fixed in drive axle by fastener, can just change like this axial restraint mode of drive axle in the past, make the Joint strenght of drive axle higher, use saferly, and the installing space taking is less.
Because the front portion of described main speed reduction box housing is provided with cavity, on described main speed reduction box housing, steering cylinder is installed, the cylinder barrel of described steering cylinder is positioned at described cavity, the cylinder barrel of described steering cylinder is positioned at the centre of described main speed reduction box housing on left and right directions, described steering cylinder is double acting double rod cylinder, described in two, piston rod is oppositely arranged, described in two, piston rod is connected with respectively steering track rod, the end of described steering track rod is articulated with on the ear seat of described end reduction box casing, during use, two-piston bar is synchronized with the movement to same direction, pulling steering track rod to complete turns to, compare with the steering cylinder that side is installed, its structure is more reasonable.
The height of the one end being connected with piston rod due to described steering track rod is higher than the height of the one end being connected with ear seat, improved the height of one end that steering track rod is connected with piston rod, trac. the crossing ability of vertical direction improved, due to overhead higher, also avoid muddy water to enter one end that steering track rod is connected with piston rod, improved the reliability using.
Outside the piston rod of described steering cylinder both sides, be equipped with protective cover, when trac. operation, can well protect piston rod, the damage of avoiding damaging.
Due to described steering track rod with described piston rod by turning to connecting ball head to be connected, described in turn to connecting ball head to adopt one closing in type connection structure, this is simple in structure, uses reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the enlarged drawing of analysing and observe part in left side in Fig. 1;
Fig. 4 is the enlarged drawing of analysing and observe part in Fig. 2;
Fig. 5 is the mounting structure schematic diagram of the steering cylinder of the utility model embodiment;
Fig. 6 is the structural representation of the steering hardware of the utility model embodiment;
Fig. 7 is the structural representation of the connecting ball head of the utility model embodiment.
In figure: 1, drive axle; 2, three grades of deceleration driven gears; 3, terminal transmission box; 4, connection cover; 5, double reduction driven gear; 6, bearing; 7, semiaxis housing; 8, sleeve pipe; 9, semiaxis; 10, double reduction driving gear; 11, key axle; 12, three grades of deceleration driving gears; 13, pressing plate; 14, clutch shaft bearing; 15, bolt; 16, the second bearings; 17, main speed reduction box housing; 18, steering cylinder; 19, piston rod; 20, connecting ball head; 21, steering track rod; 22, active helical wheel; 23, driven helical gear; 24, diff; 25, back-up ring; 26, screw; 27, protective cover; 28, cylinder support; 29, ear seat.
The specific embodiment
As shown in the figure, a kind of front drive axle of tractor, comprise main speed reduction box housing 17, initiatively helical wheel 22 is installed in described main speed reduction box housing 17, driven helical gear 23 and diff 24, described main speed reduction box housing 17 both sides are separately installed with semiaxis housing 7, in described semiaxis housing 7, be provided with semiaxis 9 and be set in the sleeve pipe 8 on described semiaxis 9, one end of described semiaxis 9 is connected with described diff 24, the other end is connected with double reduction driving gear 10, the bearing 6 of described double reduction driving gear 10 leans vertically on one end of described sleeve pipe 8, the other end of described sleeve pipe 8 is located by back-up ring 25, described double reduction driving gear 10 is engaged with double reduction driven gear 5, described double reduction driven gear 5 is installed on one end of key axle 11, the bearing of described double reduction driven gear 5 is installed on described semiaxis housing 7, the outside of described semiaxis housing 7 is hinged with terminal transmission box 3, the outside of described semiaxis housing 7 is hinged on described terminal transmission box 3 by connection cover 4, in described terminal transmission box 3, be provided with three grades of speed reducing gear pairs, three grades of deceleration driving gears 12 of described three grades of speed reducing gear pairs are installed on the other end of described key axle 11, the two ends of described key axle 11 are generally spline, three grades of deceleration driven gears 2 of described three grades of speed reducing gear pairs are installed in drive axle 1, the both sides that described drive axle 1 is positioned at described three grades of deceleration driven gears 2 are respectively equipped with clutch shaft bearing 14 and the second bearing 16, described clutch shaft bearing 14 and the second bearing 16 are all installed on described terminal transmission box 3, described clutch shaft bearing 14 is positioned at described three grades of reducing gear outside and leans on described terminal transmission box 3 inwalls, described three grades of deceleration driven gears 2 lean on described clutch shaft bearing 14, described the second bearing 16 leans on described three grades of deceleration driven gears 2, on described the second bearing 16, leaned pressing plate 13, described pressing plate 13 is fixing vertically by fastener, described fastener is installed in described drive axle 1, described fastener is bolt 15, on described pressing plate 13, by two described bolts 15, be fixed on vertically in described drive axle 1, make thus the Joint strenght of drive axle 1 greatly improve, and the installing space that total takies is little.
As further improvement, the front portion of described main speed reduction box housing 17 is provided with cavity, on described main speed reduction box housing 17, steering cylinder 18 is installed, the cylinder barrel of described steering cylinder 18 is positioned at described cavity, the cylinder barrel of described steering cylinder 18 is positioned at the centre of described main speed reduction box housing 17 on left and right directions, the cylinder barrel that is described steering cylinder 18 equates with the spacing of the terminal transmission box 3 of both sides in the axial direction, described steering cylinder 18 is double acting double rod cylinder, described in two, piston rod 19 is oppositely arranged, described in two, piston rod 19 is connected with respectively steering track rod 21, the end of described steering track rod 21 is articulated with on the ear seat 29 of described end reduction box casing, the height of one end that described steering track rod 21 is connected with piston rod 19 is higher than the height of the one end being connected with ear seat 29, can improve like this ride-height of one end that steering track rod 21 is connected with piston rod 19, prevent that vehicle from having muddy water to sneak into this one end in use procedure, impact is used.
For protection piston rod 19 exempts from damaged in collision when the Vehicle Driving Cycle, piston rod 19 outsides of described steering cylinder 18 both sides are equipped with protective cover 27, and described protective cover 27 is installed on described main speed reduction box housing 17.
Described steering track rod 21 with described piston rod 19 by turning to connecting ball head 20 to be connected, as shown in Figure 7, described in turn to connecting ball head 20 to adopt one closing in type connection structures, this is simple in structure, uses reliable.
Described main speed reduction box housing 17 is installed with the cylinder support 28 of the axial and circumferential position of the cylinder barrel of fixing described steering cylinder 18, described cylinder support 28 has two, and be individually fixed in the two ends of the cylinder barrel of described steering cylinder 18, on two described cylinder supports 28, screw 26 is all installed, described screw 26 is screwed in the fluting of described cylinder barrel two ends setting.
Claims (8)
1. front drive axle of tractor, comprise main speed reduction box housing, initiatively helical wheel is installed in described main speed reduction box housing, driven helical gear and diff, described main speed reduction box housing both sides are separately installed with semiaxis housing, in described semiaxis housing, be provided with semiaxis and be set in the sleeve pipe on described semiaxis, one end of described semiaxis is connected with described diff, the other end is connected with double reduction driving gear, the bearing of described double reduction driving gear leans vertically on described sleeve pipe, described double reduction driving gear is engaged with double reduction driven gear, described double reduction driven gear is installed on one end of key axle, the bearing of described double reduction driven gear is installed on described semiaxis housing, the outside of described semiaxis housing is hinged with terminal transmission box, in described terminal transmission box, be provided with three grades of speed reducing gear pairs, three grades of deceleration driving gears of described three grades of speed reducing gear pairs are installed on the other end of described key axle, three grades of deceleration driven gears of described three grades of speed reducing gear pairs are installed in drive axle, it is characterized in that: the both sides that described drive axle is positioned at described three grades of deceleration driven gears are respectively equipped with clutch shaft bearing and the second bearing, described clutch shaft bearing and the second bearing are all installed on described terminal transmission box, described clutch shaft bearing is positioned at described three grades of reducing gear outside and leans on described terminal transmission box inwall, described three grades of deceleration driven gears lean on described clutch shaft bearing, described the second bearing leans on described three grades of deceleration driven gears, on described the second bearing, leaned pressing plate, described pressing plate is fixing vertically by fastener, described fastener is installed in described drive axle.
2. front drive axle of tractor as claimed in claim 1, is characterized in that: described fastener is bolt, on described pressing plate, by two described bolts, is fixed on vertically in described drive axle.
3. front drive axle of tractor as claimed in claim 1 or 2, it is characterized in that: the front portion of described main speed reduction box housing is provided with cavity, on described main speed reduction box housing, steering cylinder is installed, the cylinder barrel of described steering cylinder is positioned at described cavity, the cylinder barrel of described steering cylinder is positioned at the centre of described main speed reduction box housing on left and right directions, described steering cylinder is double acting double rod cylinder, described in two, piston rod is oppositely arranged, described in two, piston rod is connected with respectively steering track rod, and the end of described steering track rod is articulated with on the ear seat of described end reduction box casing.
4. front drive axle of tractor as claimed in claim 3, is characterized in that: the height of the other end that described steering track rod is connected with piston rod is higher than the height of the one end being connected with ear seat.
5. front drive axle of tractor as claimed in claim 3, is characterized in that: the piston rod outside of described steering cylinder both sides is equipped with protective cover, and described protective cover is installed on described main speed reduction box housing.
6. front drive axle of tractor as claimed in claim 3, is characterized in that: described steering track rod with described piston rod by turning to connecting ball head to be connected, described in turn to connecting ball head to adopt one closing in type connection structure.
7. front drive axle of tractor as claimed in claim 3, is characterized in that: described main speed reduction box housing is installed with the cylinder support of the axial and circumferential position of fixing described steering cylinder cylinder barrel.
8. front drive axle of tractor as claimed in claim 7, it is characterized in that: described cylinder support has two, and be individually fixed in the two ends of the cylinder barrel of described steering cylinder, on two described cylinder supports, screw be all installed, described screw is screwed in the fluting of described cylinder barrel two ends setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512958.XU CN203418984U (en) | 2013-08-21 | 2013-08-21 | Front drive axle of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512958.XU CN203418984U (en) | 2013-08-21 | 2013-08-21 | Front drive axle of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203418984U true CN203418984U (en) | 2014-02-05 |
Family
ID=50018085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512958.XU Expired - Fee Related CN203418984U (en) | 2013-08-21 | 2013-08-21 | Front drive axle of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203418984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553774A (en) * | 2015-01-30 | 2015-04-29 | 山东常林农业装备股份有限公司 | Direct-connected four-wheel driven variable speed drive device with steering axle |
-
2013
- 2013-08-21 CN CN201320512958.XU patent/CN203418984U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553774A (en) * | 2015-01-30 | 2015-04-29 | 山东常林农业装备股份有限公司 | Direct-connected four-wheel driven variable speed drive device with steering axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee after: LOVOL HEAVY INDUSTRY Co.,Ltd. Address before: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee before: FOTON LOVOL INTERNATIONAL HEAVY INDUSTRY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20210821 |