CN202783364U - Four-wheel drive tractor - Google Patents
Four-wheel drive tractor Download PDFInfo
- Publication number
- CN202783364U CN202783364U CN 201220373280 CN201220373280U CN202783364U CN 202783364 U CN202783364 U CN 202783364U CN 201220373280 CN201220373280 CN 201220373280 CN 201220373280 U CN201220373280 U CN 201220373280U CN 202783364 U CN202783364 U CN 202783364U
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- Prior art keywords
- gear
- wheel
- shaft
- change speed
- cliding
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Abstract
The utility model relates to a four-wheel drive tractor which comprises a front frame, a rear frame, a first tail end assembly, a second tail end assembly, a front axle and a rear axle. A power source and a first gearbox which is connected with the power source are installed on the front frame , a second gearbox is installed on the rear frame, a bowing reversing mechanism is arranged between the front frame and the rear frame, a transfer system and a differential mechanism are arranged in the first gearbox, the first tail end assembly is integrated on the first gearbox, the second tail end assembly is integrated on the second gearbox, and the first gearbox and the second gearbox are connected through a power transmission shaft. The bowing reversing mechanism is arranged between the front frame and the rear frame so that the tractor is flexible. A transfer case and the differential mechanism are not required to be installed in the tractor so that space in the tractor is greatly saved, the arrangement of the gearboxes is compact, the gearboxes are small in size, and steering operation is not influenced; and the tail end assemblies are integrated on the gearboxes and connected with the front axle so that space is saved.
Description
Technical field
The utility model relates to a kind of four-wheel drive tractor.
Background technology
Four-wheel drive tractor has good earth-catching property, and tractive force is large.Existing four-wheel drive tractor comprises car body, be provided with propulsion source (spark ignition engine or diesel engine) at car body, the output shaft of propulsion source is connected with change speed gear box, change speed gear box is connected with auxiliary gear box, and auxiliary gear box is passed to wheel by diff, terminal assembly, propons (back axle) after with the dynamic branch that obtains successively.When trac. need to turn to, make front-wheel deflection certain angle by the steering hardware of controlling propons, trac. can rotate as the center of circle take the intersection point of front two axles line extended line.Its radius of gyration is large, and it is dumb to move, and causes very large difficulty to agricultural production.
For overcoming defects, some compact tractors have adopted the articulated steering mode, namely at the trac. middle part articulated steering joint and control system are set, and during turning, control system promotes front vehicle body and rotates to an angle, and make trac. realize the minor radius rotation.The rotation of this articulated steering mechanism flexibly, but since during rotation whole participation of front vehicle body rotate, if front vehicle body is excessive, can make radius of rotation increase, operating difficulties, effort.Because large tractor is loosely organized, therefore can't use this articulated steering mechanism at present.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of turn radius that reduces, and makes large tractor turn to flexible, simple to operate, labour-saving four-wheel drive tractor.
The utility model is achieved in that
A kind of four-wheel drive tractor, comprise front vehicle frame and front-wheel, rear vehicle frame and trailing wheel, the first terminal assembly, the second terminal assembly, the propons that is connected with the first terminal assembly, the back axle that is connected with the second terminal assembly, in front vehicle frame propulsion source is installed, the first change speed gear box that is connected with propulsion source, at rear vehicle frame the second change speed gear box is installed, its special character is: described front vehicle frame, be provided with articulated steering mechanism between the rear vehicle frame, be integrated with the transfer system in described the first change speed gear box, diff, the described first terminal assembly is integrated on the first change speed gear box, the second terminal assembly is integrated on the second change speed gear box, is connected by power drive shaft between the power take-off shaft of the power input shaft of the first change speed gear box and the second change speed gear box.
Described articulated steering mechanism is by articulated steering joint and composition of the control system, the articulated steering joint respectively with front vehicle frame be connected vehicle frame and be connected.
Described control system comprises bearing circle, the Power train that is used for changing transmission of power direction and transferring power that links to each other with bearing circle, the actuating device that is used for driving front vehicle frame turnover certain angle that links to each other with Power train turns to more convenient, laborsaving, accurate realization.
Described the first change speed gear box, the second change speed gear box comprise casing by casing respectively, in casing, be provided with gear teeth wheels, commutating tooth wheels, be provided with shift fork with corresponding position, cliding gear position in gear teeth wheels, the commutating tooth wheels, described reversing gear group is connected with respectively bevel gear shaft, power take-off shaft, to replace the function of auxiliary gear box, described bevel gear shaft, the parts formation transfer system that places finishing bevel gear cuter, the power take-off shaft on the bevel gear shaft and be used for being connected with the commutating tooth wheels, described finishing bevel gear cuter is connected with diff.
Described gear teeth wheels by power input shaft, with affixed the first fixed gear wheel of power input shaft, one axle, place the first cliding gear, the second cliding gear on the axle successively, two axles, place the second fixed gear wheel, the 3rd fixed gear wheel, the 4th fixed gear wheel on two axles to form successively; Described commutating tooth wheels place the 5th fixed gear wheel on two axles by the 3rd cliding gear that places on the axle, three axles, place the 6th fixed gear wheel on three axles to form; Described the 5th fixed gear wheel is connected with the output shaft engaging sleeve, and described output shaft engaging sleeve is connected with power take-off shaft.
Described the first cliding gear, the second cliding gear, the 3rd cliding gear, the 3rd fixed gear wheel, the 4th fixed gear wheel, the 6th fixed gear wheel are dual gear, and described the 5th fixed gear wheel is triple gear; Be respectively equipped with groove on described the first cliding gear, the second cliding gear, the 3rd cliding gear.
A described axle is located on the first fixed gear wheel by bearing frame, and described two axles are located on the power take-off shaft by bearing frame, make the dead in line of an axle and power input shaft, two axles and power take-off shaft, to reduce the volume of the first change speed gear box, the second change speed gear box.
Described bevel gear shaft is provided with the 7th fixed gear wheel, described the 7th fixed gear wheel and the engagement of the 5th fixed gear wheel, the finishing bevel gear cuter of described bevel gear shaft is positioned at the front portion of bevel gear shaft, to take full advantage of the space in the first change speed gear box, the second change speed gear box, make arrange in the first change speed gear box, the second change speed gear box compacter.
The output gear shaft of described diff links to each other with the last transmission imput shaft of terminal assembly, the last driven transmission beam warp of terminal assembly crosses propons or back axle links to each other with wheel, to reduce the first change speed gear box and the first terminal assembly, propons, the distance between the second change speed gear box and the second terminal assembly, the back axle.
Described power drive shaft is three sections altogether, connects by universal-joint between adjacent two sections power drive shafies, and power still can be by the power input shaft of power drive shaft with transmission of power to the second change speed gear box of the first speed changing box power output shaft when turning to assurance.
The beneficial effects of the utility model are:
1, owing between front vehicle frame, rear vehicle frame, articulated steering mechanism is set, during turning, trac. front vehicle frame integral-rotation, the rotation mid point of trac. is the intersection point of the axial direction of the axis direction of front vehicle wheel and rear wheel, radius of rotation is far smaller than the radius of rotation of front-wheel steering, and trac. is more flexible.
2, integrated transfer system in the first change speed gear box, the second change speed gear box, the direction of bevel gear shaft is anterior by becoming towards the trac. rear portion towards trac., and link to each other with diff, therefore, need not to install respectively the first change speed gear box, the second change speed gear box, part-time case, diff in the trac., greatly saved the space of trac. inside, the compactness of arranging of the first change speed gear box, the second change speed gear box, volume is little, does not affect steering operation.
3, be integrated with the first terminal assembly on the first change speed gear box, be integrated with the second terminal assembly on the second change speed gear box, be connected with propons on the first terminal assembly, be connected with back axle on the second terminal assembly, there is not the space between the first change speed gear box (the second change speed gear box), the first terminal assembly (the second terminal assembly), the propons (back axle), saved the space, reduced the volume of front vehicle frame, make turn to more flexible.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the first change speed gear box (the second change speed gear box) of Fig. 1;
Fig. 3 is the mesh schematic representation of the 5th fixed gear wheel and the 6th fixed gear wheel in the commutating tooth wheels of Fig. 2;
Fig. 4 is the control system structural representation of Fig. 1;
Among the figure: propulsion source 1, the first change speed gear box 2, casing 201, gear teeth wheels 202, power input shaft 202a, the first fixed gear wheel 202b, an axle 202c, the first cliding gear 202d, the second cliding gear 202e, two axle 202f, the second fixed gear wheel 202g, the 3rd fixed gear wheel 202h, the 4th fixed gear wheel 202i, commutating tooth wheels 203, the 3rd cliding gear 203a, three axle 203b, the 6th fixed gear wheel 203c, the 5th fixed gear wheel 203d, transfer system 204, output shaft engaging sleeve 204a, cut-off shift fork 204b, power take-off shaft 204c, the 7th fixed gear wheel 204d, bevel gear shaft 204e, finishing bevel gear cuter 204f, diff 205, gear shift fork 206, groove 207, the first terminal assemblies 3, end transmission imput shaft 301, last driven transmission axle 302, propons 4, front vehicle frame 5, articulated steering mechanism 6, articulated steering joint 601, control system 602, bearing circle 602a, torque transfer 602b, actuating device 602c, power drive shaft 7, rear vehicle frame 8, the second change speed gear box 9, the second terminal assemblies 10, back axle 11.
The specific embodiment
As shown in the figure, this four-wheel drive tractor comprises front vehicle frame 5, rear vehicle frame 8, is provided with articulated steering mechanism 6 between described front vehicle frame 5, the rear vehicle frame 8.Described articulated steering mechanism 6 is comprised of with control system 602 articulated steering joint 601, described control system 602 comprises bearing circle 602a, the torque transfer 602b that links to each other with bearing circle 602a, the actuating device 602c that links to each other with torque transfer 602b, in the present embodiment, described torque transfer 602b is by one group of finishing bevel gear cuter, one group of turbine and worm forms, the turbine of torque transfer 602b is connected with actuating device 602c, to realize front vehicle frame 5, kinking between the rear vehicle frame 8, in the present embodiment, described actuating device 602c is gear rack actuating device, and an end and the front vehicle frame 5 of its middle rack are hinged.The first change speed gear box 2 that propulsion source 1 is installed, is connected with propulsion source 1 in front vehicle frame 5, be integrated with the first terminal assembly 3 on the first change speed gear box 2, be connected with propons 4 on the first terminal assembly 3, in the present embodiment, described propulsion source 1 is diesel engine (also can be spark ignition engine).Described the first change speed gear box 2 comprises casing 201, is provided with gear teeth wheels 202, commutating tooth wheels 203 in casing 201, also is integrated with transfer system 204, diff 205 in the first change speed gear box 2.Be provided with gear shift fork 206 with gear teeth wheels 202, corresponding position, commutating tooth wheels 203 interior cliding gear position, described commutating tooth wheels 203 are connected with respectively bevel gear shaft 204e, power take-off shaft 204c, consist of transfer system 204 main bodys.Described bevel gear shaft 204e is provided with finishing bevel gear cuter 204f, this finishing bevel gear cuter 204f is positioned at the anterior of bevel gear shaft 204e and is connected with diff 205, the output gear shaft of described diff 205 links to each other with the last transmission imput shaft 301 of the first terminal assembly 3, and the last driven transmission axle 302 of the first terminal assembly 3 links to each other with front vehicle wheel through propons 4.Described gear teeth wheels 202 by power input shaft 202a, with affixed the first fixed gear wheel 202b of power input shaft 202a, one axle 202c, place the first cliding gear 202d, the second cliding gear 202e on the axle 202c successively, two axle 202f, place the second fixed gear wheel 202g, the 3rd fixed gear wheel 202h, the 4th fixed gear wheel 202i gear shift fork 206 on the two axle 202f to form successively; Described commutating tooth wheels 203 place the 5th fixed gear wheel 203d on the two axle 202f by the 3rd cliding gear 203a that places on the axle 202c, three axle 203b, place the 6th fixed gear wheel 203c on the three axle 203b to form; Described transfer system 204 is by bevel gear shaft 204e, the output shaft engaging sleeve 204a that is connected with the 5th fixed gear wheel 203d, place the 7th fixed gear wheel 204d that bevel gear shaft 204e is upper and be connected with the 5th fixed gear wheel 203d, with the power take-off shaft 204c that output shaft engaging sleeve 204a is connected, finishing bevel gear cuter 204f forms.Described the first cliding gear 202d, the second cliding gear 202e, the 3rd cliding gear 203a, the 3rd fixed gear wheel 202h, the 4th fixed gear wheel 202i, the 6th fixed gear wheel 203c are dual gear, and described the 5th fixed gear wheel 203d is triple gear.Be respectively equipped with groove 207 on described the first cliding gear 202d, the second cliding gear 202e, the 3rd cliding gear 203a, gear shift fork 206 has six gears, and is corresponding with the extreme limit of travel position of above-mentioned three cliding gears respectively.Described output shaft engaging sleeve 204a is provided with groove 207, cut-offs shift fork 204b and has two gears, and the end position with output shaft engaging sleeve 204a stroke is corresponding respectively.A described axle 202c is located on the power input shaft 202a by bearing frame, and described two axle 202f are located on the power take-off shaft 204c by bearing frame, makes an axle 202c and power input shaft 202a, two axle 202f and power take-off shaft 204c dead in line.The output gear shaft of described diff 205 is connected with the first terminal assembly 3, propons 4 or back axle 11 successively.At rear vehicle frame 8 the second change speed gear box 9 is installed, the structure of described the second change speed gear box 9 is consistent with the structure of the first change speed gear box 2, be integrated with the second terminal assembly 10 on the second change speed gear box 9, the last driven transmission beam warp of the second terminal assembly 10 later bridge 11 links to each other with trailing wheel, is connected by power drive shaft 7 between the power take-off shaft 204c of the power input shaft 202a of the first change speed gear box 2 and the second change speed gear box 9.Described power drive shaft 7 is three sections altogether, connect by universal-joint between adjacent two sections power drive shafies 7, power still can be by the power input shaft 202a of power drive shaft 7 with transmission of power to the second change speed gear box 9 of the first change speed gear box 2 power take-off shaft 204c when turning to assurance.
When turning to, steering wheel rotation 602a changes by size, the direction of power drive with power, and is passed to actuating device 602c, and actuating device 602c drives front vehicle frame 5 and turns back with rear vehicle frame 8.This four-wheel drive tractor rotates as the center of circle take the intersection point of front-wheel, trailing wheel axis extended line.
During gearshift, stir 206 to one grades of gear shift forks, the first cliding gear 202d moves to right, and power directly transmits by the first fixed gear wheel 202b, the first cliding gear 202d; Stir gear shift fork 206 to second gear, the first cliding gear 202d moves to left, and power transmits by the first fixed gear wheel 202b, the second fixed gear wheel 202g, the 3rd fixed gear wheel 202h, the first cliding gear 202d; Stir gear shift fork 206 to third gear, the second cliding gear 202e moves to right, and power transmits by the first fixed gear wheel 202b, the second fixed gear wheel 202g, the 3rd fixed gear wheel 202h, the second cliding gear 202e; Stir gear shift fork 206 to fourth speed, the second cliding gear 202e moves to left, and power transmits by the first fixed gear wheel 202b, the second fixed gear wheel 202g, the 4th fixed gear wheel 202i, the second cliding gear 202e; Stir gear shift fork 206 to reverse gear, power transmits by the 3rd cliding gear 203a, the 6th fixed gear wheel 203c, the 5th fixed gear wheel 203d; When shift fork was positioned at other position, power transmitted by the 3rd cliding gear 203a, the 5th fixed gear wheel 203d.
When changing drive form, stir and cut-off shift fork 204b, output shaft engaging sleeve 204a connects the 5th fixed gear wheel 203d and power take-off shaft 204c, and transmission of power to tractor rear wheel, is realized four wheel drive; Stir and cut-off shift fork 204b, output shaft engaging sleeve 204a separates with the 5th fixed gear wheel 203d, realizes two wheel drive.
Claims (10)
1. four-wheel drive tractor, comprise front vehicle frame and front-wheel, rear vehicle frame and trailing wheel, the first terminal assembly, the second terminal assembly, the propons that is connected with the first terminal assembly, the back axle that is connected with the second terminal assembly, in front vehicle frame propulsion source is installed, the first change speed gear box that is connected with propulsion source, at rear vehicle frame the second change speed gear box is installed, it is characterized in that: described front vehicle frame, be provided with articulated steering mechanism between the rear vehicle frame, be integrated with the transfer system in described the first change speed gear box, diff, the described first terminal assembly is integrated on the first change speed gear box, the second terminal assembly is integrated on the second change speed gear box, is connected by power drive shaft between the power take-off shaft of the power input shaft of the first change speed gear box and the second change speed gear box.
2. four-wheel drive tractor according to claim 1 is characterized in that: described articulated steering mechanism is by articulated steering joint and composition of the control system, the articulated steering joint respectively with front vehicle frame be connected vehicle frame and be connected.
3. four-wheel drive tractor according to claim 2, it is characterized in that: described control system comprises bearing circle, the Power train that is used for changing transmission of power direction and transferring power that links to each other with bearing circle, the actuating device that is used for driving front vehicle frame turnover certain angle that links to each other with Power train.
4. four-wheel drive tractor according to claim 1, it is characterized in that: described the first change speed gear box, the second change speed gear box comprise casing by casing respectively, in casing, be provided with gear teeth wheels, commutating tooth wheels, be provided with shift fork with corresponding position, cliding gear position in gear teeth wheels, the commutating tooth wheels, described reversing gear group is connected with respectively bevel gear shaft, power take-off shaft, described bevel gear shaft, the parts formation transfer system that places finishing bevel gear cuter, the power take-off shaft on the bevel gear shaft and be used for being connected with the commutating tooth wheels, described finishing bevel gear cuter is connected with diff.
5. four-wheel drive tractor according to claim 4, it is characterized in that: described gear teeth wheels by power input shaft, with affixed the first fixed gear wheel of power input shaft, one axle, place the first cliding gear, the second cliding gear on the axle successively, two axles, place the second fixed gear wheel, the 3rd fixed gear wheel, the 4th fixed gear wheel on two axles to form successively; Described commutating tooth wheels place the 5th fixed gear wheel on two axles by the 3rd cliding gear that places on the axle, three axles, place the 6th fixed gear wheel on three axles to form; Described the 5th fixed gear wheel is connected with the output shaft engaging sleeve, and described output shaft engaging sleeve is connected with power take-off shaft.
6. four-wheel drive tractor according to claim 5, it is characterized in that: described the first cliding gear, the second cliding gear, the 3rd cliding gear, the 3rd fixed gear wheel, the 4th fixed gear wheel, the 6th fixed gear wheel are dual gear, and described the 5th fixed gear wheel is triple gear; Be respectively equipped with groove on described the first cliding gear, the second cliding gear, the 3rd cliding gear.
7. four-wheel drive tractor according to claim 5, it is characterized in that: a described axle is located on the first fixed gear wheel by bearing frame, and described two axles are located on the power take-off shaft by bearing frame.
8. four-wheel drive tractor according to claim 5, it is characterized in that: described bevel gear shaft is provided with the 7th fixed gear wheel, described the 7th fixed gear wheel and the engagement of the 5th fixed gear wheel, the finishing bevel gear cuter of described bevel gear shaft is positioned at the front portion of bevel gear shaft.
9. four-wheel drive tractor according to claim 1, it is characterized in that: the output gear shaft of described diff links to each other with the last transmission imput shaft of terminal assembly, and the last driven transmission beam warp of terminal assembly crosses propons or back axle links to each other with wheel.
10. four-wheel drive tractor according to claim 1, it is characterized in that: described power drive shaft is three sections altogether, connects by universal-joint between adjacent two sections power drive shafies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373280 CN202783364U (en) | 2012-07-31 | 2012-07-31 | Four-wheel drive tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373280 CN202783364U (en) | 2012-07-31 | 2012-07-31 | Four-wheel drive tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202783364U true CN202783364U (en) | 2013-03-13 |
Family
ID=47810682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220373280 Expired - Fee Related CN202783364U (en) | 2012-07-31 | 2012-07-31 | Four-wheel drive tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202783364U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806943A (en) * | 2012-07-31 | 2012-12-05 | 辽宁现代农机装备有限公司 | Four-wheel drive tractor |
| CN107264624A (en) * | 2017-07-10 | 2017-10-20 | 孟庆菊 | Two-way steering machine and more piece compartment vehicle |
| EP3900966A1 (en) * | 2020-04-24 | 2021-10-27 | Kessler & Co. GmbH & Co. KG | Axle drive |
-
2012
- 2012-07-31 CN CN 201220373280 patent/CN202783364U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806943A (en) * | 2012-07-31 | 2012-12-05 | 辽宁现代农机装备有限公司 | Four-wheel drive tractor |
| CN102806943B (en) * | 2012-07-31 | 2015-02-04 | 辽宁现代农机装备有限公司 | Four-wheel drive tractor |
| CN107264624A (en) * | 2017-07-10 | 2017-10-20 | 孟庆菊 | Two-way steering machine and more piece compartment vehicle |
| CN107264624B (en) * | 2017-07-10 | 2024-03-08 | 孟庆菊 | Bidirectional steering machine and multi-carriage vehicle |
| EP3900966A1 (en) * | 2020-04-24 | 2021-10-27 | Kessler & Co. GmbH & Co. KG | Axle drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |