CN110053678B - Hydraulic wheel-track chassis of combine harvester - Google Patents
Hydraulic wheel-track chassis of combine harvester Download PDFInfo
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- CN110053678B CN110053678B CN201810599919.5A CN201810599919A CN110053678B CN 110053678 B CN110053678 B CN 110053678B CN 201810599919 A CN201810599919 A CN 201810599919A CN 110053678 B CN110053678 B CN 110053678B
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- wheel
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- driving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/02—Endless track vehicles with tracks and additional ground wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/04—Endless track vehicles with tracks and alternative ground wheels, e.g. changeable from endless track vehicle into wheeled vehicle and vice versa
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Guiding Agricultural Machines (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention discloses a hydraulic wheel-track chassis of a combine harvester, which comprises a frame, a running mechanism, a hydraulic control mechanism and a steering mechanism, wherein the frame is a three-shaft frame, and the running mechanism consists of a front wheel driving shaft, a rear wheel driving shaft and a middle track; the hydraulic control mechanism consists of a suspension, a front driving wheel secondary hydraulic control device, a rear driving wheel secondary hydraulic control device and an obstacle crossing auxiliary hydraulic control device; the middle crawler belt is connected with a middle shaft of the frame; the steering mechanism consists of a front wheel steering tie rod, a rear wheel steering tie rod and a crawler belt differential steering control device; the crawler differential steering control device is connected with the middle crawler. The hydraulic wheel-track chassis of the combine harvester is provided with a secondary hydraulic control device, a wheel type running mode, a track running mode and a wheel-track composite running mode are realized, and the adaptability of a vehicle to different terrains is greatly improved.
Description
Technical Field
The invention relates to the technical field of combine harvester chassis, in particular to a hydraulic wheel track chassis of a combine harvester.
Background
With the development of scientific technology, more and more technologies are applied to the field of agricultural machinery, China is a big agricultural country, governments encourage and support farmers and agricultural production and operation organizations to use advanced and applicable agricultural machinery all the time, agricultural mechanization is promoted, China has wide farmers and complex terrains, hilly land cultivated land gradient is large, a crawler-type harvester cannot cross obstacles with large gradient, mountainous land cultivated land terrain is complex and peculiar and various, a wheel-type harvester cannot cope with complex terrains, and the harvester with a single chassis cannot cope with various different cultivated land terrains, so that a hydraulic wheel-track chassis of a combine harvester is provided, and the problems provided in the above are solved conveniently.
Disclosure of Invention
The invention aims to provide a hydraulic wheel-track chassis of a combine harvester, which aims to solve the problem that the combine harvester on the market cannot cross obstacles in a large gradient manner, so that the harvester with a single chassis cannot cope with different cultivated land terrains.
In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic wheel-track chassis of a combine harvester comprises a frame, a running mechanism, a hydraulic control mechanism and a steering mechanism, the frame is a three-shaft frame, the running mechanism consists of a front wheel driving shaft, a rear wheel driving shaft and a middle crawler belt, the hydraulic control mechanism consists of a suspension, a front driving wheel secondary hydraulic control device, a rear driving wheel secondary hydraulic control device and an obstacle crossing auxiliary hydraulic control device, the middle crawler belt is connected with an intermediate shaft of the frame, the steering mechanism consists of a front wheel steering tie rod, a rear wheel steering tie rod and a crawler belt differential steering control device, the front wheel steering transverse pull rod is hinged with the front driving wheel, the rear wheel steering transverse pull rod is hinged with the rear driving wheel, the front wheel driving shaft is connected with the front driving wheel, the rear wheel driving shaft is connected with the rear driving wheel, and the crawler differential steering control device is connected with the middle crawler.
Preferably, the front driving wheel and the rear driving wheel are respectively an obstacle crossing auxiliary wheel and a steering driving wheel.
Preferably, the front driving wheel two-stage hydraulic control device comprises a first cylinder, a first primary piston and a first secondary piston, the first primary piston is connected with the front driving wheel, the first secondary piston cylinder is hinged to a piston cylinder of the obstacle crossing auxiliary hydraulic control device, and the first cylinder is hinged to the frame.
Preferably, the rear driving wheel secondary hydraulic control device comprises a second cylinder, a second primary piston and a second secondary piston, the second primary piston is connected with the rear driving wheel, the second secondary piston is hinged with the suspension, and the second cylinder is hinged with the frame.
Preferably, the front wheel drive shaft includes a front wheel drive shaft sleeve shaft and a front wheel drive shaft spline shaft, and the inside of the front wheel drive shaft sleeve shaft is provided with the front wheel drive shaft spline shaft.
Preferably, the rear wheel drive shaft includes a rear wheel drive shaft sleeve shaft and a rear wheel drive shaft spline shaft, and the rear wheel drive shaft spline shaft is provided on the inner side of the rear wheel drive shaft sleeve shaft.
Compared with the prior art, the invention has the beneficial effects that: the hydraulic wheel-track chassis of the combine harvester,
(1) the front driving wheel and the rear driving wheel are respectively an obstacle crossing auxiliary wheel and a steering driving wheel, the front driving wheel is connected with the front driving wheel secondary hydraulic control device, the rear driving wheel is connected with the rear driving wheel secondary hydraulic control device, a wheel type driving mode, a crawler driving mode and a wheel-crawler composite driving mode can be realized, and the adaptability of the vehicle to different terrains is greatly improved;
(2) the obstacle-crossing auxiliary hydraulic control device is arranged, so that the climbing and obstacle-crossing capability of the harvester with larger gradient can be improved;
(3) the two-stage hydraulic control device is arranged, so that the ground clearance of the chassis can be conveniently adjusted, and the trafficability and stability of the vehicle under different road conditions are improved.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of a front driving wheel connection structure according to the present invention;
fig. 3 is a schematic view of the rear driving wheel connection structure of the present invention.
In the figure: 1. a three-axis frame; 2. a front drive wheel; 3. a rear drive wheel; 4. a middle crawler belt; 5. a suspension; 6. a front driving wheel secondary hydraulic control device; 6-1, a first cylinder barrel; 6-2, a first primary piston; 6-3, a first secondary piston; 7. a secondary hydraulic control device of a rear driving wheel; 7-1 and a second cylinder barrel; 7-2, a second stage piston; 7-3, a second stage piston; 8. an obstacle-crossing auxiliary hydraulic control device; 9. a front wheel steering tie rod; 10. a rear wheel steering tie rod; 11. a crawler differential steering control device; 12. a front wheel drive shaft; 12-1, a front wheel drive shaft sleeve shaft; 12-2, a front wheel drive shaft spline shaft; 13. a rear wheel drive shaft; 13-1, driving a shaft sleeve of a rear wheel; 13-2 and a rear wheel drive shaft spline shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a hydraulic wheel-track chassis of a combine harvester comprises a frame, a running mechanism, a hydraulic control mechanism and a steering mechanism, wherein the frame is a three-shaft frame 1, the running mechanism consists of a front wheel driving shaft 12, a rear wheel driving shaft 13 and a middle crawler belt 4, the hydraulic control mechanism consists of a suspension bracket 5, a front driving wheel secondary hydraulic control device 6, a rear driving wheel secondary hydraulic control device 7 and an obstacle crossing auxiliary hydraulic control device 8, the front driving wheel secondary hydraulic control device 6 comprises a first cylinder 6-1, a first primary piston 6-2 and a first secondary piston 6-3, the first primary piston 6-2 is connected with the front driving wheel 2, the first secondary piston 6-3 is hinged with a piston cylinder of the obstacle crossing auxiliary hydraulic control device, the first cylinder 6-1 is hinged with the frame, the distance between the first secondary piston 6-3 and the cylinder 6-1 is not variable, when the first primary piston 6-2 contracts, the first primary piston 6-2 and the first secondary piston 6-3 move relatively to ensure that the total length of the whole secondary piston cylinder is kept unchanged, the deformation of the frame 1 caused by the contraction of the first primary piston 6-2 is avoided, the rear driving wheel secondary hydraulic control device 7 comprises a second cylinder 7-1, a second primary piston 7-2 and a second secondary piston 7-3, the second primary piston 7-2 is connected with the rear driving wheel 3, the second secondary piston 7-3 is hinged with the suspension 5, the second cylinder 7-1 is hinged with the frame, the distance between the second secondary piston 7-3 and the cylinder 7-1 is not changed, when the second primary piston 7-2 contracts, the second primary piston 7-2 and the second secondary piston 7-3 move relatively to each other, the total length of the whole secondary piston cylinder is kept unchanged, the deformation of a frame 1 caused by the contraction of a secondary piston 7-2 is avoided, a middle crawler 4 is connected with a middle shaft of the frame, a steering mechanism consists of a front wheel steering transverse pull rod 9, a rear wheel steering transverse pull rod 10 and a crawler differential steering control device 11, the front wheel steering transverse pull rod 9 is hinged with a front driving wheel 2, the rear wheel steering transverse pull rod 10 is hinged with a rear driving wheel 3, the front driving wheel 2 and the rear driving wheel 3 are respectively an obstacle crossing auxiliary wheel and a steering driving wheel, when the front driving wheel 2 and the rear driving wheel 3 are lifted, power can be transmitted to the front driving wheel 2 and the rear driving wheel 3 through a universal transmission shaft, a front wheel driving shaft 12 is connected with the front driving wheel 2, the front wheel driving shaft 12 comprises a front wheel driving shaft sleeve shaft 12-1 and a front wheel driving shaft spline shaft 12-2, and the front wheel driving shaft spline 12-2 is arranged on the inner side of the, when the current driving wheel 2 goes up and down and swings, power can be transmitted to the front driving wheel 2 through the universal transmission shaft, the problem that the length of the front wheel driving shaft 12 cannot be changed is avoided, the rear wheel driving shaft 13 is connected with the rear driving wheel 3, the rear wheel driving shaft 13 comprises a rear wheel driving shaft sleeve shaft 13-1 and a rear wheel driving shaft spline shaft 13-2, the rear wheel driving shaft sleeve shaft 13-1 is provided with the rear wheel driving shaft spline shaft 13-2 on the inner side, it can be ensured that when the rear driving wheel 3 goes up and down, the power can be transmitted to the rear driving wheel 3 through the universal transmission shaft, the problem that the length of the rear wheel driving shaft 13 cannot be changed is avoided simultaneously, and the crawler differential steering control device 11 is connected with.
The working principle is as follows: when the hydraulic wheel-track chassis of the combine harvester is used, the running mode of the hydraulic wheel-track chassis of the combine harvester is according to the telescopic state of the hydraulic cylinder of the front and rear wheel secondary hydraulic control device, and the concrete steps are as follows: when a first primary piston 6-2 of a front driving wheel secondary hydraulic control device 6 and a second primary piston 7-2 of a rear driving wheel secondary hydraulic control device 7 are both in an extension state, a middle crawler 4 is suspended in the air, and a front driving wheel 2 and a rear driving wheel 3 are driven to touch the ground; when a first primary piston 6-2 of a front driving wheel secondary hydraulic control device 6 is in an extension state, a second primary piston 7-2 of a rear driving wheel secondary hydraulic control device 7 is in a non-fully-extended state, namely a contraction state and a semi-extension state, a rear driving wheel 3 is suspended in the air, and a front driving wheel 2 and a middle crawler 4 are in landing driving; when a second primary piston 7-2 of the rear driving wheel secondary hydraulic control device 7 is in an extension state, a first primary piston 6-2 of the front driving wheel secondary hydraulic control device 6 is in a non-fully-extended state, namely a contraction state and a semi-extended state, the front driving wheel 2 is suspended, and the rear driving wheel 3 and the middle crawler 4 are in grounded driving; when a first primary piston 6-2 of a front driving wheel secondary hydraulic control device 6 and a second primary piston 7-2 of a rear driving wheel secondary hydraulic control device 7 are both in a contraction state, a front driving wheel 2 and a rear driving wheel 3 are suspended, and a middle crawler 4 is driven to land; when a first primary piston 6-2 of a front driving wheel secondary hydraulic control device 6 and a second primary piston 7-2 of a rear driving wheel secondary hydraulic control device 7 are in a half-extension state, a front driving wheel 2, a rear driving wheel 3 and a middle crawler 4 are all driven to touch the ground; when the first primary piston 6-2 of the front driving wheel secondary hydraulic control device 6 and the second primary piston 7-2 of the rear driving wheel secondary hydraulic control device 7 are both in an extension state, the ground clearance of the chassis is the highest; when the first primary piston 6-2 of the current driving wheel secondary hydraulic control device 6 and the second primary piston 7-2 of the rear driving wheel secondary hydraulic control device 7 are both in a semi-contraction state, the ground clearance of the chassis is lowest, the four wheels and the crawler are both in a landing state, the stability is the best at the moment, and meanwhile, the combine harvester can perform large-gradient obstacle crossing and is suitable for different terrains.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a combine hydraulic pressure wheel-track chassis, includes frame, travel mechanism, hydraulic control mechanism and steering mechanism, its characterized in that: the frame is a three-axis frame (1), the running mechanism consists of a front wheel driving shaft (12), a rear wheel driving shaft (13) and a middle crawler belt (4), the hydraulic control mechanism consists of a suspension (5), a front driving wheel secondary hydraulic control device (6), a rear driving wheel secondary hydraulic control device (7) and an obstacle crossing auxiliary hydraulic control device (8), the middle crawler belt (4) is connected with an intermediate shaft of the frame, the steering mechanism consists of a front wheel steering transverse pull rod (9), a rear wheel steering transverse pull rod (10) and a crawler belt differential steering control device (11), the front wheel steering transverse pull rod (9) is hinged with a front driving wheel (2), the rear wheel steering transverse pull rod (10) is hinged with a rear driving wheel (3), the front wheel driving shaft (12) is connected with the front driving wheel (2), the rear wheel driving shaft (13) is connected with the rear driving wheel (3), the crawler belt differential steering control device (11) is connected with the middle crawler belt (4); the rear driving wheel secondary hydraulic control device (7) comprises a second cylinder (7-1), a second primary piston (7-2) and a second secondary piston (7-3), the second primary piston (7-2) is connected with the rear driving wheel (3), the second secondary piston (7-3) is hinged with the suspension (5), and the second cylinder (7-1) is hinged with the frame.
2. The combine harvester hydraulic wheel track chassis according to claim 1, characterized in that: the front driving wheel (2) and the rear driving wheel (3) are respectively an obstacle crossing auxiliary wheel and a steering driving wheel.
3. The combine harvester hydraulic wheel track chassis according to claim 1, characterized in that: the front driving wheel two-stage hydraulic control device (6) comprises a first cylinder (6-1), a first primary piston (6-2) and a first secondary piston (6-3), the first primary piston (6-2) is connected with the front driving wheel (2), the first secondary piston (6-3) is hinged to a piston cylinder of the obstacle crossing auxiliary hydraulic control device, and the first cylinder (6-1) is hinged to a frame.
4. The combine harvester hydraulic wheel track chassis according to claim 1, characterized in that: the front wheel driving shaft (12) comprises a front wheel driving shaft sleeve shaft (12-1) and a front wheel driving shaft spline shaft (12-2), and the front wheel driving shaft spline shaft (12-2) is arranged on the inner side of the front wheel driving shaft sleeve shaft (12-1).
5. The combine harvester hydraulic wheel track chassis according to claim 1, characterized in that: the rear wheel driving shaft (13) comprises a rear wheel driving shaft sleeve shaft (13-1) and a rear wheel driving shaft spline shaft (13-2), and the rear wheel driving shaft spline shaft (13-2) is arranged on the inner side of the rear wheel driving shaft sleeve shaft (13-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599919.5A CN110053678B (en) | 2018-06-12 | 2018-06-12 | Hydraulic wheel-track chassis of combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599919.5A CN110053678B (en) | 2018-06-12 | 2018-06-12 | Hydraulic wheel-track chassis of combine harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110053678A CN110053678A (en) | 2019-07-26 |
| CN110053678B true CN110053678B (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810599919.5A Active CN110053678B (en) | 2018-06-12 | 2018-06-12 | Hydraulic wheel-track chassis of combine harvester |
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| Country | Link |
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| CN (1) | CN110053678B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000211560A (en) * | 1999-01-20 | 2000-08-02 | Tcm Corp | Industrial vehicle |
| RU2401759C2 (en) * | 2009-01-11 | 2010-10-20 | Феликс Аронович Черняков | Tractor |
| CN202847852U (en) * | 2012-09-05 | 2013-04-03 | 西北工业大学 | Wheel-tracked variable chassis |
| CN206437084U (en) * | 2017-01-20 | 2017-08-25 | 廖建群 | Disk hillside tractor with effectively power speed change system |
| CN206841556U (en) * | 2017-04-25 | 2018-01-05 | 李纳 | One kind wheel carries out switchable type walking mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005013692B4 (en) * | 2005-03-22 | 2011-03-31 | Grobler, Hendrik, Dr., Clyde Park | Motor vehicle with additional crawler undercarriage |
-
2018
- 2018-06-12 CN CN201810599919.5A patent/CN110053678B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000211560A (en) * | 1999-01-20 | 2000-08-02 | Tcm Corp | Industrial vehicle |
| RU2401759C2 (en) * | 2009-01-11 | 2010-10-20 | Феликс Аронович Черняков | Tractor |
| CN202847852U (en) * | 2012-09-05 | 2013-04-03 | 西北工业大学 | Wheel-tracked variable chassis |
| CN206437084U (en) * | 2017-01-20 | 2017-08-25 | 廖建群 | Disk hillside tractor with effectively power speed change system |
| CN206841556U (en) * | 2017-04-25 | 2018-01-05 | 李纳 | One kind wheel carries out switchable type walking mechanism |
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| Publication number | Publication date |
|---|---|
| CN110053678A (en) | 2019-07-26 |
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