CN111891218A - Hinge steering four-wheel drive tractor - Google Patents
Hinge steering four-wheel drive tractor Download PDFInfo
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- CN111891218A CN111891218A CN202010866957.XA CN202010866957A CN111891218A CN 111891218 A CN111891218 A CN 111891218A CN 202010866957 A CN202010866957 A CN 202010866957A CN 111891218 A CN111891218 A CN 111891218A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 106
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 4
- 101100494448 Caenorhabditis elegans cab-1 gene Proteins 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D12/00—Steering specially adapted for vehicles operating in tandem or having pivotally connected frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a four-wheel drive tractor with a hinged steering mechanism, and aims to provide a four-wheel drive tractor with strong operation adaptability, good adhesion and strong driving force. The four-wheel drive transmission system is respectively connected with the central transmission box, the front axle and the rear axle, the power output system is connected with the central transmission box, and the hydraulic suspension mechanism is arranged at the rear end of the rear frame body. The invention is suitable for the power of agricultural machinery in paddy and dry fields.
Description
Technical Field
The invention relates to a tractor, in particular to a four-wheel drive tractor with a hinged steering function.
Background
The existing tractor is provided with a driving wheel on a rear transmission axle, the front end of the rear transmission axle is directly connected with an engine, the engine is arranged on a front axle, a guide wheel is arranged on the front axle, and the front axle of some tractors is changed into a four-wheel drive tractor by adopting a driving axle in order to improve the traction capacity. Because the large-diameter guide wheel cannot be adopted due to the limitation of a steering swing space, the driving force of the small-diameter guide wheel is weak, the adhesiveness is poor, the traction force of the existing four-wheel drive tractor is limited, the adaptability of the traction or suspension farm tool for paddy and upland field operation is not enough, and the driving force of the traction force is not enough.
Disclosure of Invention
The invention aims to solve the problems and provides a four-wheel drive tractor with a hinged steering, which has strong operation adaptability, good adhesion and strong driving force.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention relates to a hinge steering four-wheel drive tractor, which comprises a cab, an engine, a front axle, driving wheels, a rear axle, a four-wheel drive system, a central transmission case, a rear frame body, a hydraulic suspension mechanism, a main input shaft, a front frame body, a rear frame body, a transverse profile modeling frame, a power output system and a hinge steering mechanism, wherein the engine is arranged on the front frame body, the cab is arranged behind the engine, the transverse profile modeling frame is arranged below the front frame body and fixedly arranged on the front axle, the driving wheels are arranged at two ends of the front axle in a rolling manner, the rear frame body is arranged on the rear frame body and is in a square barrel shape formed by four thick-wall plates, the rear frame body is fixedly arranged on the rear axle, the driving wheels are arranged at two ends of the rear axle in a rolling manner, the hinge steering mechanism is arranged between the front frame body and the rear frame body, the central transmission case is arranged below the cab and fixedly arranged on the front frame body, the central transmission case is connected with the engine flywheel through a main input shaft, the four-wheel drive transmission system is respectively connected with the central transmission case, the front axle and the rear axle, the power output system is connected with the central transmission case, and the hydraulic suspension mechanism is arranged at the rear end of the rear frame body.
As a preferred embodiment of the present invention, the four-wheel drive transmission system includes a front axle input shaft, a rear axle intermediate shaft, a rear axle transmission shaft seat, and a rear axle input shaft, wherein the rear end of the front axle input shaft is connected to the output shaft of the central transmission case, the front end of the front axle input shaft is connected to the front axle input shaft, the rear axle intermediate shaft is vertically and correspondingly located below the hinge steering mechanism, the front end of the rear axle intermediate shaft is connected to the output shaft of the central transmission case, the rear axle transmission shaft seat is disposed on the bottom surface of the rear frame body, the rear end of the rear axle intermediate shaft is connected to a rear axle transmission shaft disposed in the rear axle transmission shaft seat, the front end of the rear axle input shaft is connected to a rear axle transmission shaft disposed in the rear axle transmission shaft seat, and the rear end of the rear axle input shaft is connected to the rear axle input shaft.
As a preferable scheme of the invention, the hinge steering mechanism comprises an upper splint, a steering oil cylinder, a lower splint and an oil cylinder lug seat, wherein the two upper splints are horizontally arranged at the upper part of the rear end of the front frame body, the two lower splints are horizontally arranged at the lower part of the rear end of the front frame body, the upper splint and the lower splint are respectively horizontally arranged at the front end of the rear frame box body from top to bottom, the upper splint is correspondingly inserted between the two upper splints and is hinged through an upper vertical shaft, the lower splint is correspondingly inserted between the two lower splints and is hinged through a lower vertical shaft, the upper vertical shaft and the lower vertical shaft are coaxial, the oil cylinder lug seat is horizontally arranged above the two lower splints, the two steering oil cylinders are horizontally arranged in a splayed left-right symmetrical manner, the front ends of piston rods of the two steering oil cylinders are folded towards the middle and are inserted between the oil cylinder lug seat, the rear ends of the two steering oil cylinder bodies are respectively hinged on the inner side walls of the left side and the right side of the rear frame box body.
As a preferred scheme of the present invention, the power output system includes an output intermediate shaft, an output transmission shaft seat, a transmission case input shaft, an output transmission case, and a power output shaft, the output transmission shaft seat is suspended in the rear frame box, the output intermediate shaft is correspondingly located in the middle of the hinge steering mechanism along the vertical direction, the front end of the output intermediate shaft is connected to the output shaft on the central transmission case, the rear end of the output intermediate shaft is connected to the output transmission shaft arranged in the output transmission shaft seat, the output transmission case is fixedly mounted on the rear cross beam of the rear frame body, the front end of the transmission case input shaft is connected to the output transmission shaft arranged in the output transmission shaft seat, the rear end of the transmission case input shaft is connected to the output transmission case driving shaft, and the lower end of the output transmission case is provided with the power output shaft.
As a preferred scheme of the invention, the transverse profiling frame comprises an upper support, a lower support and a hinge pin shaft, wherein the upper support adopts a parallel double-plate structure, the plate surface is in an inverted trapezoid shape, a horizontal hinge sleeve is arranged at the middle position of the lower end of the upper support, the two upper supports are mutually parallel and vertically fixed on the bottom surface of the front frame body, the lower support adopts a single-plate structure, the plate surface is in an upper arc shape, a horizontal hinge sleeve is arranged at the middle position of the upper end of the lower support, and the two lower supports are upwards inserted between the two double plates of the upper support correspondingly along the vertical direction and are hinged through the hinge pin shaft.
After the technical scheme is adopted, the hinge steering four-wheel drive tractor provided by the invention has the beneficial effects that:
a hinge steering mechanism is arranged between the front frame body and the rear frame body, the central transmission case is arranged below the cab and fixedly arranged on the front frame body, the central transmission case is connected with the engine flywheel through a main input shaft, the four-wheel drive transmission system is respectively connected with the central transmission case, the front axle and the rear axle, the power output system is connected with the central transmission case, and the hydraulic suspension mechanism is arranged at the rear end of the rear frame body. During operation, an agricultural implement is hung on the hydraulic suspension mechanism, a transmission system of the agricultural implement is connected with a power output shaft of the power output system of the four-wheel drive tractor, flexible steering is realized through a hinge steering mechanism in the advancing process of the unit, the rear frame body, the rear axle and the driving wheels do not swing relative to the rear frame body and the rear axle in the steering process, the four tires adopt the same large-diameter driving wheels, compared with the existing method adopting two small-diameter guide wheels, the adhesive force is increased, the four tires are driven simultaneously in operation, the traction performance of the tractor can be fully exerted, and the operation adaptability to dry farmlands or low-lying paddy fields or low-lying waterlogging lands is improved. Therefore, the effects of strong working adaptability, good adhesion and strong driving force are obtained.
Drawings
FIG. 1 is a front elevational view of the construction of the articulated steering four-wheel drive tractor of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged view of a portion of I in FIG. 1;
fig. 4 is a view from direction a in fig. 1.
In the figure: a cab 1; an engine 2; a front axle 3; a drive wheel 4; a front axle input shaft 5; a central transmission case 6; a rear axle intermediate shaft 7; a rear axle drive shaft seat 8; a rear axle input shaft 9; a rear axle 10; a rear frame body 11; a hydraulic suspension mechanism 12; a main input shaft 13; a front frame body 14; an upper clamp plate 15; an upper connection plate 16; an output intermediate shaft 17; a steering cylinder 18; an output drive shaft seat 19; a rear frame case 20; a transmission input shaft 21; an output transmission case 22; a power take-off shaft 23; a lower clamping plate 24; a lower connection plate 25; a cylinder lug 26; a transverse profiling frame 27; an upper bracket 28; a lower bracket 29; a hinge pin 30.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1 and fig. 2, a schematic structural diagram of a hinged steering four-wheel drive tractor according to the present invention is provided, which includes a cab 1, an engine 2, a front axle 3, a driving wheel 4, a rear axle 10, a four-wheel drive transmission system, a central transmission case 6, a rear frame body 11, a hydraulic suspension mechanism 12, a main input shaft 13, a front frame body 14, a rear frame body 20, a transverse profile modeling frame 27, a power output system, and a hinged steering mechanism, wherein the engine 2 is disposed on the front frame body 14, the cab 1 is disposed behind the engine 2, the transverse profile modeling frame 27 is disposed below the front frame body 14, the transverse profile modeling frame 27 is fixedly mounted on the front axle 3, the driving wheel 4 is rotatably mounted at two ends of the front axle 3, the rear frame body 20 is disposed on the rear frame body 11, the rear frame body 20 is in a square tubular shape formed by four thick-wall plates, the rear frame body 11 is fixedly mounted on the rear axle 10, the driving wheel 4 is rotatably mounted at two ends of the rear axle 10, a hinge steering mechanism is arranged between the front frame body 14 and the rear frame body 20, the central transmission case 6 is arranged below the cab 1 and fixedly mounted on the front frame body 14, the central transmission case 6 is connected with the flywheel of the engine 2 through a main input shaft 13, the four-wheel drive transmission system is respectively connected with the central transmission case 6, the front axle 3 and the rear axle 10, the power output system is connected with the central transmission case 6, and the hydraulic suspension mechanism 12 is arranged at the rear end of the rear frame body 11.
In fig. 1, the four-wheel drive transmission system comprises a front axle input shaft 5, a rear axle intermediate shaft 7, a rear axle drive shaft seat 8 and a rear axle input shaft 9, the rear end of the front axle input shaft 5 is connected with the output shaft of the central transmission case 6, the front end of the front axle input shaft 5 is connected with the input shaft of the front axle 3, the rear axle intermediate shaft 7 is correspondingly positioned below the hinge steering mechanism along the vertical direction, the front end of the rear axle intermediate shaft 7 is connected with the output shaft of the central transmission case 6, the rear axle transmission shaft seat 8 is arranged on the bottom surface of the rear frame body 11, the rear end of the rear axle intermediate shaft 7 is connected with a rear axle transmission shaft arranged in the rear axle transmission shaft seat 8, the front end of the rear axle input shaft 9 is connected with a rear axle transmission shaft arranged in the rear axle transmission shaft seat 8, and the rear end of the rear axle input shaft 9 is connected with the input shaft of the rear axle 10.
As a preferred embodiment of the present invention, in fig. 1, 2, and 3, the hinge steering mechanism includes an upper clamp plate 15, an upper clamp plate 16, a steering cylinder 18, a lower clamp plate 24, a lower clamp plate 25, and a cylinder ear seat 26, wherein the two upper clamp plates 15 are horizontally disposed at the upper portion of the rear end of the front frame 14, the two lower clamp plates 24 are horizontally disposed at the lower portion of the rear end of the front frame 14, the front end of the rear frame box 20 is horizontally disposed with the upper clamp plate 16 and the lower clamp plate 25 from top to bottom, the upper clamp plate 16 is correspondingly inserted between the two upper clamp plates 15 and is hinged by an upper vertical shaft, the lower clamp plate 25 is correspondingly inserted between the two lower clamp plates 24 and is hinged by a lower vertical shaft, the upper vertical shaft is coaxial with the lower vertical shaft, the cylinder ear seats 26 are horizontally disposed above the two lower clamp plates 24, the two steering cylinders 18 are horizontally arranged in a splayed left-right symmetry, the front ends of the piston rods of the two steering cylinders 18 are folded towards the middle and inserted between the cylinder ear seats 26 and the two steering cylinders 18 are hinged through two vertical shafts, and the rear ends of the cylinder bodies are respectively hinged on the inner side walls of the left side and the right side of the rear frame box 20.
In fig. 1 and 2, the power output system comprises an output intermediate shaft 17, an output transmission shaft seat 19, a transmission case input shaft 21, an output transmission case 22 and a power output shaft 23, the output transmission shaft seat 19 is hoisted in the rear frame box body 20, the output intermediate shaft 17 is correspondingly positioned in the middle of the hinge steering mechanism along the vertical direction, the front end of the output intermediate shaft 17 is connected with the output shaft of the central transmission case 6, the rear end of the output intermediate shaft 17 is connected with the output transmission shaft arranged in the output transmission shaft seat 19, the output transmission case 22 is fixedly arranged on the rear cross beam of the rear frame body 11, the front end of the input shaft 21 of the transmission case is connected with an output transmission shaft arranged in the output transmission shaft seat 19, the rear end of the transmission case input shaft 21 is connected with the driving shaft of the output transmission case 22, and the lower end of the output transmission case 22 is provided with a power output shaft 23.
As a preferred embodiment of the present invention, in fig. 1, 2, and 4, the transverse dummy frame 27 includes an upper frame 28, a lower frame 29, and a hinge pin 30, the upper frame 28 is in a parallel double-plate configuration, the plate surface is in an inverted trapezoid shape, a horizontal hinge sleeve is disposed at a middle position of a lower end of the upper frame, the two upper frames 28 are vertically fixed to the bottom surface of the front frame 14 in parallel, the lower frame 29 is in a single-plate configuration, the plate surface is in an upper arc shape, a horizontal hinge sleeve is disposed at a middle position of an upper end of the lower frame, and the two lower frames 29 are correspondingly inserted between the two double plates of the upper frame 28 in the vertical direction and are hinged by the hinge pin 30.
In practical application, the engine 2 outputs power to the central transmission case 6 through the main input shaft 13, the central transmission case 6 drives the driving wheels 4 at two ends of the front axle 3 to roll forwards through the front axle input shaft 5, and the central transmission case 6 drives the driving wheels 4 at two ends of the rear axle 10 to roll forwards through the rear axle intermediate shaft 7 and the rear axle input shaft 9 in sequence; when the tractor turns, the steering cylinder 18 of controlling hinge steering mechanism through the steering wheel is flexible, make the back frame body 11, the rear axle 10, drive wheel 4 wholly uses this upper vertical axis and this lower vertical axis coaxial line as the horizontal swing angle of center, drive wheel 4 is relative back frame body 11, the rear axle 10 does not take place the swing, four tires adopt the same major diameter drive wheel, it drives simultaneously to have realized four drive wheels, the adhesive force has been increased, four tires drive simultaneously in the operation, can full play tractor's traction performance, the operation adaptability to dry land paddy field or low-lying waterlogging plots has been improved.
When the driving type agricultural implement is hung on the hydraulic hanging mechanism 12 for operation, the agricultural implement transmission system is connected with the power output shaft 23 of the power output system of the four-wheel drive tractor, and four tires are driven simultaneously during operation, so that the traction performance of the tractor can be fully exerted, and the operation adaptability to dry farmland paddy fields or low-lying water-logging plots is improved.
The invention is suitable for the power of agricultural machinery in paddy and dry fields.
Claims (5)
1. The utility model provides a hinge turns to four-wheel drive tractor, includes driver's cabin (1), engine (2), front axle (3), drive wheel (4), rear axle (10), its characterized in that: the four-wheel drive type hydraulic suspension system is characterized by further comprising a four-wheel drive transmission system, a central transmission case (6), a rear frame body (11), a hydraulic suspension mechanism (12), a main input shaft (13), a front frame body (14), a rear frame body (20), a transverse profiling frame (27), a power output system and a hinge steering mechanism, wherein the engine (2) is arranged on the front frame body (14), a cab (1) is arranged behind the engine (2), the transverse profiling frame (27) is arranged below the front frame body (14), the transverse profiling frame (27) is fixedly arranged on the front axle (3), driving wheels (4) are arranged at two ends of the front axle (3) in a rolling manner, the rear frame body (20) is arranged on the rear frame body (11) and is in a square barrel shape formed by four thick wallboards, the rear frame body (11) is fixedly arranged on the rear axle (10), the driving wheels (4) are arranged at two ends of the rear axle (10) in a rolling manner, a hinge steering mechanism is arranged between the front frame body (14) and the rear frame body (20), the central transmission case (6) is arranged below the cab (1) and fixedly arranged on the front frame body (14), the central transmission case (6) is connected with a flywheel of the engine (2) through a main input shaft (13), the four-wheel drive transmission system is respectively connected with the central transmission case (6), the front axle (3) and the rear axle (10), the power output system is connected with the central transmission case (6), and the hydraulic suspension mechanism (12) is arranged at the rear end of the rear frame body (11).
2. The hinge-steered four-wheel drive tractor according to claim 1, wherein: the four-wheel drive transmission system comprises a front axle input shaft (5), a rear axle intermediate shaft (7), a rear axle transmission shaft seat (8) and a rear axle input shaft (9), the rear end of the front axle input shaft (5) is connected with the output shaft of the central transmission case (6), the front end of the front axle input shaft (5) is connected with the input shaft of the front axle (3), the rear axle intermediate shaft (7) is correspondingly positioned below the hinge steering mechanism along the vertical direction, the front end of the rear axle intermediate shaft (7) is connected with the output shaft of the central transmission case (6), the rear axle transmission shaft seat (8) is arranged on the bottom surface of the rear frame body (11), the rear end of the rear axle intermediate shaft (7) is connected with a rear axle transmission shaft arranged in the rear axle transmission shaft seat (8), the front end of the rear axle input shaft (9) is connected with a rear axle transmission shaft arranged in the rear axle transmission shaft seat (8), the rear end of the rear axle input shaft (9) is connected with the input shaft of the rear axle (10).
3. The hinge-steered four-wheel drive tractor according to claim 1 or 2, wherein: the hinge steering mechanism comprises upper clamping plates (15), upper clamping plates (16), steering oil cylinders (18), lower clamping plates (24), lower clamping plates (25) and oil cylinder lug seats (26), wherein the two upper clamping plates (15) are horizontally arranged at the upper part of the rear end of the front frame body (14), the two lower clamping plates (24) are horizontally arranged at the lower part of the rear end of the front frame body (14), the front end of the rear frame box body (20) is respectively and horizontally provided with the upper clamping plates (16) and the lower clamping plates (25) from top to bottom, the upper clamping plates (16) are correspondingly inserted between the two upper clamping plates (15) and are hinged through upper vertical shafts, the lower clamping plates (25) are correspondingly inserted between the two lower clamping plates (24) and are hinged through lower vertical shafts, the upper vertical shafts are coaxial with the lower vertical shafts, the oil cylinder lug seats (26) are horizontally arranged above the two lower clamping plates (24), the two steering oil cylinders (18) are horizontally arranged in a splayed left, the front ends of the piston rods of the two steering oil cylinders (18) are folded towards the middle, inserted between the oil cylinder lug seats (26) and the lower clamping plate (24) positioned above and hinged through two vertical shafts, and the rear ends of the cylinder bodies of the two steering oil cylinders (18) are respectively hinged on the inner side walls of the left side and the right side of the rear frame box body (20).
4. The hinge-steered four-wheel drive tractor according to claim 1 or 2, wherein: the power output system comprises an output intermediate shaft (17), an output transmission shaft seat (19), a transmission case input shaft (21), an output transmission case (22) and a power output shaft (23), wherein the output transmission shaft seat (19) is hung in the rear frame box body (20), the output intermediate shaft (17) is correspondingly positioned in the middle of the hinge steering mechanism along the vertical direction, the front end of the output intermediate shaft (17) is connected with an output shaft on the central transmission case (6), the rear end of the output intermediate shaft (17) is connected with an output transmission shaft arranged in the output transmission shaft seat (19), the output transmission case (22) is fixedly arranged on a rear cross beam of the rear frame body (11), the front end of the transmission case input shaft (21) is connected with the output transmission shaft arranged in the output transmission shaft seat (19), the rear end of the transmission case input shaft (21) is connected with a driving shaft of the output transmission case (22), the lower end of the output transmission case (22) is provided with a power output shaft (23).
5. The hinge-steered four-wheel drive tractor according to claim 1 or 2, wherein: the horizontal profiling frame (27) comprises an upper support (28), a lower support (29) and a hinge pin shaft (30), the upper support (28) is of a parallel double-plate structure, the plate surface is in an inverted trapezoid shape, a horizontal hinge sleeve is arranged at the middle position of the lower end of the upper support, the two upper supports (28) are mutually parallel and vertically fixedly arranged on the bottom surface of the front frame body (14), the lower support (29) is of a single-plate structure, the plate surface is in an upper arc shape, a horizontal hinge sleeve is arranged at the middle position of the upper end of the lower support, and the two lower supports (29) are upwards correspondingly inserted between the two double plates of the upper support (28) in the vertical direction and are hinged through the hinge pin shaft (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010866957.XA CN111891218A (en) | 2020-08-26 | 2020-08-26 | Hinge steering four-wheel drive tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010866957.XA CN111891218A (en) | 2020-08-26 | 2020-08-26 | Hinge steering four-wheel drive tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111891218A true CN111891218A (en) | 2020-11-06 |
Family
ID=73224222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010866957.XA Pending CN111891218A (en) | 2020-08-26 | 2020-08-26 | Hinge steering four-wheel drive tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111891218A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572626A (en) * | 2020-12-11 | 2021-03-30 | 华南农业大学 | Triangular crawler type hydraulic direct-drive profiling chassis and profiling method thereof |
| CN113099760A (en) * | 2021-04-06 | 2021-07-13 | 广东皓耘科技有限公司 | Gravity self-positioning traction connecting device and agricultural implement |
-
2020
- 2020-08-26 CN CN202010866957.XA patent/CN111891218A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572626A (en) * | 2020-12-11 | 2021-03-30 | 华南农业大学 | Triangular crawler type hydraulic direct-drive profiling chassis and profiling method thereof |
| CN113099760A (en) * | 2021-04-06 | 2021-07-13 | 广东皓耘科技有限公司 | Gravity self-positioning traction connecting device and agricultural implement |
| CN113099760B (en) * | 2021-04-06 | 2022-03-22 | 广东皓耘科技有限公司 | Gravity self-positioning traction connecting device and agricultural implement |
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Application publication date: 20201106 |
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