CN112970360B - High ground clearance agricultural vehicle - Google Patents
High ground clearance agricultural vehicle Download PDFInfo
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- CN112970360B CN112970360B CN202110155303.0A CN202110155303A CN112970360B CN 112970360 B CN112970360 B CN 112970360B CN 202110155303 A CN202110155303 A CN 202110155303A CN 112970360 B CN112970360 B CN 112970360B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B51/00—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
- A01B51/02—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus propelled by a motor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
- A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
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- Agricultural Machines (AREA)
Abstract
The invention discloses a high-clearance agricultural vehicle, which comprises: the central frame is provided with a power device and an electric cabinet; an executive end assembly mounted on the central frame; two frame portions; each frame part comprises a side frame and two wheel frames, and wheels are arranged at the bottom of each wheel frame; the left side and the right side of the central frame are both provided with sleeves, the outer side ends of the sleeves are rotationally connected with the side frame, and the rotational central axis is parallel to the width direction of the vehicle; each wheel frame is movably arranged up and down relative to the side frame along the axial direction of the pin shaft; the power device outputs power to four wheels through a transmission system; each frame part is provided with a transmission system, and each transmission system comprises a group of driving side chain transmission mechanisms and two groups of driven side chain transmission mechanisms. By adopting the scheme of the invention, the vehicle can stably run on a rugged road surface and has good steering performance and running track adjusting performance.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to an agricultural vehicle with a high ground clearance.
Background
At present, with the progress of agricultural mechanization being accelerated, agricultural vehicles have been used in large quantities. However, since the road surface is relatively complex and undulates, it is necessary to provide an agricultural vehicle that can be operated on uneven road surfaces.
Disclosure of Invention
The invention aims to provide an agricultural vehicle with a high ground clearance, which can stably run on a rugged road surface.
The purpose of the invention is realized as follows: a high clearance agricultural vehicle comprising at least:
the central frame is provided with a power device and an electric cabinet controlled by remote control;
the execution end assembly is used for executing agricultural operation and is arranged on the central frame;
two frame parts which are respectively arranged at the left side and the right side of the central frame;
each frame part comprises a side frame and two wheel frames which are positioned at the outer sides of the front end and the rear end of the side frame, and the bottom of each wheel frame is rotatably connected with wheels rolling on the road surface;
the left side and the right side of the central frame are fixedly connected with sleeves which horizontally extend outwards in a direction parallel to the width of the vehicle, the outer side ends of the sleeves are rotatably connected with the side frame, and the central axis of rotation is parallel to the width direction of the vehicle;
each wheel frame is provided with a group of pin shafts and is rotationally connected with the side frame through the pin shafts, and each wheel frame is movably arranged up and down relative to the side frame along the axial direction of the pin shafts;
the power device is controlled by the electric control box and outputs power to the four wheels through the transmission system;
each frame part is provided with a transmission system, each transmission system comprises a group of driving side chain transmission mechanisms and two groups of driven side chain transmission mechanisms, the driving side chain transmission mechanisms are installed in the side frame and are in transmission connection with the output end of the power device, the two groups of driven side chain transmission mechanisms are installed in the two wheel frames respectively, the two groups of driven side chain transmission mechanisms are in flexible transmission connection with the driving side chain transmission mechanisms, and the output side of each group of driven side chain transmission mechanisms is in transmission connection with wheels.
Further, still include and stabilize link mechanism, stabilize link mechanism including fixing the lower carriage in central frame downside to and oscillating axle, balanced rocking arm, tip universal joint, the middle part of balanced rocking arm is passed through the oscillating axle and is connected the lower carriage with the luffing motion is rotatory, the both ends of balanced rocking arm all are connected with the tip universal joint, lateral part support is connected to the tip universal joint.
Further, each transmission system comprises a power output shaft and an input shaft, and in each transmission system: the driving side chain transmission mechanism comprises a driving side chain, a first chain wheel, a second chain wheel and a third chain wheel, the power output shaft is in transmission connection with the power device, the input shaft is in butt joint with the power output shaft and movably penetrates through the inner cavity of the sleeve, the input shaft is in coaxial transmission connection with the chain wheels, the first chain wheel, the second chain wheel and the third chain wheel are rotatably connected with the lateral frame, the axes of the first chain wheel, the second chain wheel and the third chain wheel are horizontally arranged, the third chain wheel and the second chain wheel are positioned on the first chain wheel and are respectively arranged at the front end and the rear end of the lateral frame, the driving side chain is simultaneously connected with the first chain wheel, the second chain wheel and the third chain wheel, and the moving track surface of the driving side chain is a vertical surface.
Furthermore, in each transmission system, each group of driven side chain transmission mechanisms comprises a driven side chain, an upper chain wheel and a lower chain wheel, the upper chain wheel and the lower chain wheel are respectively and rotatably connected with the upper side and the lower side of the wheel frame, the driven side chain is sleeved with the upper chain wheel and the lower chain wheel, and the moving track surface of the driven side chain is a vertical surface; each wheel is coaxially provided with a wheel shaft, the lower chain wheel is in coaxial transmission connection with the wheel shaft, each upper chain wheel is provided with a transmission universal joint, and the two upper chain wheels are in transmission connection with the second chain wheel and the third chain wheel through the transmission universal joints respectively.
Furthermore, the driving side chain transmission mechanism of each transmission system further comprises a supporting chain wheel meshed with the driving side chain and supporting the driving side chain, and a pair of tension wheels, wherein the supporting chain wheel is positioned in the middle between the second chain wheel and the third chain wheel and is rotatably connected with the lateral frame, the two tension wheels are rotatably connected with the lateral frame and are respectively positioned at two sides below the supporting chain wheel, the two tension wheels are meshed with the outer side of the driving side chain, and the two tension wheels can be adjusted and used for tensioning the driving side chain.
Furthermore, each side frame is fixedly connected with a side support seat extending downwards, the sleeve is a circular tube, a rotary supporting bearing and a connecting flange are arranged at the position where the sleeve is rotatably connected with the side frame, the outer ring of the rotary supporting bearing is fixedly connected with the sleeve coaxially, the connecting flange is fixedly installed on the lower side of the side support seat, the inner ring of the rotary supporting bearing is fixedly assembled with the connecting flange, and the input shaft movably penetrates through the inner ring of the rotary supporting bearing.
Further, each side frame is provided with a wheel frame rotating mechanism for simultaneously driving the two wheel frames to rotate relatively around the respective pin shafts, and in a turning working condition, the opening directions of the two wheels on the left side and the opening directions of the two wheels on the right side are the same based on an overlooking visual angle, so that the front wheel and the rear wheel are on the same turning radius.
Further, each wheel carrier rotation mechanism includes:
the outer side seat is fixedly connected with the side frame;
the external driver is controlled by the electric control box and is fixedly connected with the outer side seat;
the intermediate gear is coaxially and fixedly connected with the output end of the external driver;
the first linear transmission assembly comprises a lower rack and a first steering pull rod which are parallel to each other, the lower rack is positioned below the middle gear and meshed with the middle gear, and one end of the first steering pull rod is fixedly connected with one end of the lower rack;
the second linear transmission assembly comprises an upper rack and a second steering pull rod which are parallel to each other, the upper rack is positioned above the middle gear and meshed with the middle gear, and one end of the second steering pull rod is fixedly connected with one end of the upper rack;
one of the two transmission connecting rods is rotationally connected with one of the wheel frames and the other end of the first steering pull rod, and the other transmission connecting rod is rotationally connected with the other wheel frame and the other end of the second steering pull rod;
the first linear transmission assembly and the second linear transmission assembly are arranged in a relative motion mode, and the motion track is parallel to the length direction of the vehicle.
Furthermore, both ends of the upper rack are provided with downward convex lower convex portions, both ends of the lower rack are provided with upward convex upper convex portions, the right lower convex portion of the upper rack is fixedly connected with a second steering pull rod, the second steering pull rod axially movably penetrates through the right upper convex portion of the lower rack, the left upper convex portion of the lower rack is fixedly connected with a first steering pull rod, and the first steering pull rod axially movably penetrates through the left lower convex portion of the upper rack.
Furthermore, each wheel frame rotating mechanism comprises two linear bearings fixedly mounted on the side frame, and the first steering pull rod and the second steering pull rod are movably connected with the two linear bearings in a penetrating mode respectively.
The invention has the beneficial effects that:
1. when the vehicle passes through an uneven road surface, the frame parts at the left side and the right side of the central frame can rotate up and down around the respective rotary support bearings, and the balance rocker arm can swing up and down along with the frame parts, so that the posture of the vehicle is adjusted, and the vehicle can stably pass through;
2. when the vehicle passes through an uneven road surface, each wheel frame moves up and down relative to the side frame along the axial direction of the pin shaft, so that the vehicle is better suitable for the complex height change of the road surface;
3. the wheel frame rotating mechanism is arranged, so that the wheel frames on the left side and the right side can be driven to rotate at the same time, the external driver can be started to finely adjust the front wheel frame and the rear wheel frame according to conditions, the front and rear arrangement states of the four wheels can be guaranteed during straight running, the straightness of a running track can be guaranteed, the opening directions of the two wheels on the side and the opening directions of the two wheels on the right side can be the same under a turning working condition, the front wheels and the rear wheels are located on the same turning radius, and the turning performance of the vehicle can be guaranteed.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of another aspect of the present invention.
Fig. 3 is a schematic structural view of the wheel frame rotating mechanism.
Fig. 4 is a schematic layout of the transmission system.
Fig. 5 is a schematic view of a wheel frame.
Fig. 6 is a schematic view of a stabilizing linkage.
FIG. 7 is a schematic view of the mounting relationship of the bushing to the side mount.
In the figure:
the basic constitution is as follows: 1, a central frame, 2 power devices and 3 electric cabinets;
a transmission system: 4 power output shafts, 5 input shafts, 6 chain wheels I, 7 supporting chain wheels, 8 chain wheels II, 9 chain wheels III, 10 transmission universal joints, 11 upper chain wheels, 12 lower chain wheels, 13 wheel shafts and 14 wheels;
the frame part: 15 sleeves, 16 slewing support bearings, 17 connecting flanges, 18 side frames, 19 side supports, 19a tension wheels, 20 pin shafts and 21 wheel frames;
wheel frame slewing mechanism: 22 external driver, 23 middle gear, 24 upper rack, 25 lower rack, 26 first steering pull rod, 27 second steering pull rod, 28 linear bearing, 29 tail end movable connecting seat, 30 transmission connecting rod and 31 external seat;
stabilizing the link mechanism: 32 lower brackets, 33 swinging shafts, 34 balance swinging arms and 35 end universal joints;
the execution end component: 36 rear power shaft, 37 film stripping roller, 38 tooth-shaped bracket and 39 cutting disc.
Detailed Description
The invention will be further described with reference to the accompanying figures 1 to 7 and the specific embodiments.
As shown in fig. 1, a high-clearance agricultural vehicle basically comprises:
the remote control system comprises a central frame 1, a power device 2 and a remote control electric cabinet 3, wherein the central frame is formed by transforming a mini-tiller, and the lower side of the central frame 1 keeps a certain distance from the road surface;
the execution end assembly is used for executing agricultural operation and is arranged on the central frame 1;
two frame parts which are respectively arranged at the left side and the right side of the central frame 1.
Wherein each frame part comprises a side frame 18 and two wheel frames 21 which are positioned at the outer sides of the front and rear ends of the side frame 18, and the bottom of each wheel frame 21 is rotatably connected with wheels 14 rolling on the road surface.
Each wheel frame 21 is provided with a set of pins 20 and is rotatably connected with the side frame 18 through the pins 20, and each wheel frame 21 is movably arranged up and down relative to the side frame 18 along the axial direction of the pins 20.
In this embodiment, as shown in fig. 2 and 6, the vehicle further includes a stabilizing link mechanism, the stabilizing link mechanism includes a lower bracket 32 fixed on the lower side of the central frame 1, a swing shaft 33, a balance rocker arm 34, and an end universal joint 35, the middle portion of the balance rocker arm 34 is connected to the lower bracket 32 through the swing shaft 33 in a vertically swinging and rotating manner, the end universal joint 35 is connected to both ends of the balance rocker arm 34, and the end universal joint 35 is connected to the side bracket 18.
The power unit 2 is controlled by the electronic control box 3, and the power unit 2 outputs power to the four wheels 14 through a transmission system.
The vehicle of the embodiment is used for film uncovering operation, and as shown in fig. 1 and 2, the left side and the right side of the central frame 1 are both provided with a rear power shaft 36 (originally, a rotary blade shaft for mounting a rotary blade on a mini-tiller), the execution end assembly comprises a pair of film uncovering rollers 37 respectively sleeved on the rear power shaft 36, and the film uncovering rollers 37 continuously rotate in the use process and are used for reeling uncovered mulching films; the actuating end assembly further comprises a tooth-shaped bracket 38 which is arranged at the lower side of the central frame 1 in a lifting and adjusting way, a cutting disc 39 is rotatably arranged at the left side and the right side of the tooth-shaped bracket 38 respectively, and the mulching film is cut into two parts by the two cutting discs 39 during the process of running.
The execution end assembly can be replaced with other components according to the situation, so that the purpose of the vehicle is changed, and different equipment is formed, such as a highland crack pesticide sprayer, a fertilizer applicator and the like.
In order to achieve the purpose of stably driving on a complex road surface, when a vehicle runs on the complex road surface with unevenness, two frame parts which are respectively arranged at the left side and the right side of the central frame 1 rotate up and down by taking the rotary support bearing 16 as a reference, and meanwhile, the wheel frame 21 performs fine-adjustment type movement up and down along the axial direction of the pin shaft 20, so that the complex road surface with unevenness is better adapted, and the balance rocker arm 34 swings with the two end universal joints 35, so that the driving process is more stable.
As shown in fig. 4 and 5, each frame part is provided with a transmission system, each transmission system includes a set of driving-side chain transmission mechanisms installed in the side frame 18 and in transmission connection with the output end of the power unit 2, and two sets of driven-side chain transmission mechanisms installed in the two wheel frames 21, respectively, and in flexible transmission connection with the driving-side chain transmission mechanisms, and the output side of each set of driven-side chain transmission mechanisms is in transmission connection with the wheels 14.
As shown in fig. 4, 5 and 7, each transmission system includes a power output shaft 4 and an input shaft 5, and in each transmission system: the driving side chain transmission mechanism comprises a driving side chain, a first chain wheel 6, a second chain wheel 8 and a third chain wheel 9, a power output shaft 4 is in transmission connection with the power device 2, an input shaft 5 is in butt joint with the power output shaft 4 and movably penetrates through an inner cavity of the sleeve 15, the input shaft 5 is in coaxial transmission connection with the first chain wheel 6, the second chain wheel 8 and the third chain wheel 9 are in rotary connection with the lateral frame 18, the axes of the first chain wheel 6, the second chain wheel 8 and the third chain wheel 9 are horizontally arranged, the third chain wheel 9 and the second chain wheel 8 are located on the first chain wheel 6 and are respectively located at the front end and the rear end of the lateral frame 18, a driven side chain is simultaneously connected with the first chain wheel 6, the second chain wheel 8 and the third chain wheel 9, and the moving track surface of the driving side chain is a vertical surface.
As shown in fig. 4 and 5, in each transmission system, each set of driven side chain transmission mechanism comprises a driven side chain, an upper chain wheel 11 and a lower chain wheel 12, the upper chain wheel 11 and the lower chain wheel 12 are respectively and rotatably connected with the upper side and the lower side of the wheel frame 21, the driven side chain is sleeved with the upper chain wheel 11 and the lower chain wheel 12, and the moving track surface of the driven side chain is a vertical surface; each wheel 14 is coaxially provided with a wheel shaft 13, the lower chain wheel 12 is in coaxial transmission connection with the wheel shaft 13, each upper chain wheel 11 is provided with a transmission universal joint 10, the two upper chain wheels 11 are in transmission connection with the second chain wheel 8 and the third chain wheel 9 through the transmission universal joints 10 respectively, and the transmission universal joints 10 can overcome the problems of running vibration, installation errors and the like, so that the driving side chain transmission mechanism can stably transmit power to the driven side chain transmission mechanism, and the power can be stably and synchronously output to each wheel 14.
The driving side chain transmission mechanism of each transmission system further comprises a supporting chain wheel 7 which is meshed with the driving side chain and supports the driving side chain, and a pair of tension wheels 19a, wherein the supporting chain wheel 7 is located in the middle position between the second chain wheel 8 and the third chain wheel 9 and is rotatably connected with the lateral frame 18, the two tension wheels 19a are rotatably connected with the lateral frame 18 and are respectively located at two side positions below the supporting chain wheel 7, the two tension wheels 19a are meshed with the outer side of the driving side chain, and the two tension wheels 19a can be adjusted and tension the driving side chain.
The transmission route of each transmission system is as follows: power unit 2 → power take-off shaft 4 → input shaft 5 → sprocket one 6 → sprocket two 8, sprocket three 9 → upper sprocket 11 → lower sprocket 12 → wheel shaft 13 → wheel 14.
Each side frame 18 is fixedly connected with a side support 19 which extends downwards and forms a part of the side frame, the sleeve 15 is a circular tube, a rotary support bearing 16 and a connecting flange 17 are arranged at the position where the sleeve 15 is rotatably connected with the side frame 18, the outer ring of the rotary support bearing 16 is coaxially and fixedly connected with the sleeve 15, the connecting flange 17 is fixedly arranged at the lower side of the side support 19, the inner ring of the rotary support bearing 16 is fixedly assembled with the connecting flange 17, and the input shaft 5 movably penetrates through the inner part of the inner ring of the rotary support bearing 16.
Each of the side frames 18 is mounted with a wheel frame turning mechanism for simultaneously driving the two wheel frames 21 to turn relatively around the respective pins 20, and in a turning condition, the opening directions of the two left wheels 14 and the opening directions of the two right wheels 14 are the same as each other as viewed from an overhead view, so that the front wheels 14 and the rear wheels 14 are on the same turning radius.
Each wheel carrier rotation mechanism includes:
an outer seat 31 fixedly connected to the side frame 18;
an external driver 22 controlled by the control box 3 and fixedly connected with the outer seat 31;
an intermediate gear 23 coaxially and fixedly connected with the output end of the external driver 22;
the first linear transmission assembly comprises a lower rack 25 and a first steering pull rod 26 which are parallel to each other, the lower rack 25 is positioned below the middle gear 23 and meshed with the middle gear 23, and one end of the first steering pull rod 26 is fixedly connected with one end of the lower rack 25;
the second linear transmission assembly comprises an upper rack 24 and a second steering pull rod 27 which are parallel to each other, the upper rack 24 is positioned on the middle gear 23 and meshed with the middle gear 23, and one end of the second steering pull rod 27 is fixedly connected with one end of the upper rack 24;
and two transmission connecting rods 30, wherein one transmission connecting rod 30 is rotatably connected with one wheel frame 21 and the other end of the first steering pull rod 26, and the other transmission connecting rod 30 is rotatably connected with the other wheel frame 21 and the other end of the second steering pull rod 27.
The first linear transmission assembly and the second linear transmission assembly are arranged in a relative motion mode, and the motion track is parallel to the length direction of the vehicle.
As shown in fig. 2 and 3, when the vehicle turns, the wheel frame rotating mechanisms of the two frame parts operate simultaneously, and the operating state of each wheel frame rotating mechanism is as follows: the external driver 22 drives the intermediate gear 23 to rotate, so as to drive the upper rack 24 and the lower rack 25 to simultaneously perform relative movement, and the upper rack 24 and the lower rack 25 respectively drive the second steering pull rod 27 and the first steering pull rod 26 to perform axial movement, so as to drive the wheel frame 21 to perform rotational adjustment around the axis of the pin shaft 20 through the transmission connecting rod 30. Under the turning condition, the opening direction of the two left wheels 14 needs to be the same as that of the two right wheels 14 based on the overlooking view, so that the front wheels 14 and the rear wheels 14 are on the same turning radius to smoothly turn.
In addition, when the vehicle travels straight, the wheel frame rotating mechanism may drive the wheel frame 21 to perform a rotation adjustment with a small amplitude, that is, to adjust the angle of the wheel 14, so as to ensure the straightness of the vehicle travel track.
Both ends of the upper rack 24 are provided with downward convex lower convex portions, both ends of the lower rack 25 are provided with upward convex upper convex portions, when viewed from an axial view angle of the intermediate gear 23, the right lower convex portion of the upper rack 24 is fixedly connected with the second steering pull rod 27, the left upper convex portion of the lower rack 25 is fixedly connected with the first steering pull rod 26, the first steering pull rod 26 axially movably penetrates through the left lower convex portion of the upper rack 24, and the second steering pull rod 27 axially movably penetrates through the right upper convex portion of the lower rack 25, so that the guidance and the accuracy of the relative movement of the upper rack 24 and the lower rack 25 are guaranteed, and the accuracy of the rotation angle of the wheel frame 21 is guaranteed.
Each wheel frame rotating mechanism comprises two linear bearings 28 fixedly arranged on the side frame 18, and the first steering pull rod 26 and the second steering pull rod 27 are movably connected with the two linear bearings 28 in a penetrating mode respectively, so that the straightness and the accuracy of moving tracks of the first steering pull rod 26 and the second steering pull rod 27 are guaranteed, and finally the accuracy of the rotating angle of the wheel frame 21 is guaranteed.
As shown in fig. 3, the first steering linkage 26 and the second steering linkage 27 are fixed with a terminal movable seat 29, and the terminal movable seat 29 is rotatably connected with the transmission link 30.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A high clearance agricultural vehicle, comprising at least:
the central frame (1) is provided with a power device (2) and an electric cabinet (3) controlled by remote control;
the execution end assembly is used for executing agricultural operation and is arranged on the central frame (1);
two frame parts which are respectively positioned at the left side and the right side of the central frame (1);
wherein each frame part comprises a side frame (18) and two wheel frames (21) which are positioned at the outer sides of the front end and the rear end of the side frame (18), and the bottom of each wheel frame (21) is rotatably connected with wheels (14) rolling on the road surface;
the left side and the right side of the central frame (1) are fixedly connected with sleeves (15) which horizontally extend outwards in a direction parallel to the width of the vehicle, the outer side ends of the sleeves (15) are rotatably connected with the side frame (18), and the central axis of rotation is parallel to the width direction of the vehicle;
each wheel frame (21) is provided with a group of pin shafts (20) and is rotationally connected with the side frame (18) through the pin shafts (20), and each wheel frame (21) is movably arranged up and down relative to the side frame (18) along the axial direction of the pin shafts (20);
the power device (2) is controlled by the electric control box (3), each frame part is provided with a transmission system, and the power device (2) outputs power to four wheels (14) through the transmission system;
each transmission system comprises a group of driving side chain transmission mechanisms and two groups of driven side chain transmission mechanisms, the driving side chain transmission mechanisms are arranged in the side frame (18) and are in transmission connection with the output end of the power device (2), the two groups of driven side chain transmission mechanisms are respectively arranged in the two wheel frames (21), the two groups of driven side chain transmission mechanisms are in flexible transmission connection with the driving side chain transmission mechanisms, and the output side of each group of driven side chain transmission mechanisms is in transmission connection with the wheels (14);
the vehicle further comprises a stabilizing connecting rod mechanism, the stabilizing connecting rod mechanism comprises a lower support (32) fixed on the lower side of the central frame (1), a swinging shaft (33), a balance rocker arm (34) and an end universal joint (35), the middle of the balance rocker arm (34) is rotatably connected with the lower support (32) through the swinging shaft (33) in a vertically swinging mode, the two ends of the balance rocker arm (34) are connected with the end universal joint (35), and the end universal joint (35) is connected with the side support (18).
2. A high clearance agricultural vehicle as claimed in claim 1, wherein: each transmission system comprises a power output shaft (4) and an input shaft (5), and in each transmission system: the driving side chain transmission mechanism comprises a driving side chain, a first chain wheel (6), a second chain wheel (8) and a third chain wheel (9), the power output shaft (4) is in transmission connection with the power device (2), the input shaft (5) is in butt joint with the power output shaft (4) and movably penetrates through an inner cavity of the sleeve (15), the input shaft (5) is in coaxial transmission connection with the first chain wheel (6), the second chain wheel (8) and the third chain wheel (9) are connected with the lateral frame (18) in a rotating mode, the axes of the first chain wheel (6), the second chain wheel (8) and the third chain wheel (9) are horizontally arranged, the third chain wheel (9) and the second chain wheel (8) are located on the first chain wheel (6) and are respectively located at the front end and the rear end of the lateral frame (18), the driving side chain is simultaneously connected with the first chain wheel (6), the second chain wheel (8) and the third chain (9), and the moving track surface of the driving side chain is a vertical surface.
3. A high clearance agricultural vehicle as claimed in claim 2, wherein: in each transmission system, each group of driven side chain transmission mechanisms comprises a driven side chain, an upper chain wheel (11) and a lower chain wheel (12), the upper chain wheel (11) and the lower chain wheel (12) are respectively and rotatably connected with the upper side and the lower side of a wheel frame (21), the driven side chain is sleeved with the upper chain wheel (11) and the lower chain wheel (12), and the moving track surface of the driven side chain is a vertical surface; each wheel (14) is coaxially provided with a wheel shaft (13), the lower chain wheel (12) is in coaxial transmission connection with the wheel shaft (13), each upper chain wheel (11) is provided with a transmission universal joint (10), and the two upper chain wheels (11) are in transmission connection with the second chain wheel (8) and the third chain wheel (9) through the transmission universal joints (10).
4. A high clearance agricultural vehicle as claimed in claim 2, wherein: the driving side chain transmission mechanism of each transmission system further comprises a supporting chain wheel (7) meshed with the driving side chain and supporting the driving side chain, and a pair of tension wheels (19a), wherein the supporting chain wheel (7) is located in the middle position between the second chain wheel (8) and the third chain wheel (9) and is in rotating connection with the lateral frame (18), the two tension wheels (19a) are in rotating connection with the lateral frame (18) and are respectively located at two side positions below the supporting chain wheel (7), the two tension wheels (19a) are meshed with the outer side of the driving side chain, and the two tension wheels (19a) can be adjusted and arranged to tension the driving side chain.
5. A high clearance agricultural vehicle as claimed in claim 2, wherein: the utility model discloses a bearing is including the equal fixedly connected with downwardly extending's of every lateral part frame (18) side support (19), sleeve pipe (15) are the pipe, are equipped with slewing bearing (16) and flange (17) in the position that sleeve pipe (15) and lateral part frame (18) rotate to be connected, the coaxial fixed connection sleeve pipe (15) of outer lane of slewing bearing (16), flange (17) fixed mounting is in side support (19) downside, inner circle fixed assembly flange (17) of slewing bearing (16), the inside of the inner circle of slewing bearing (16) is passed in input shaft (5) activity.
6. A high clearance agricultural vehicle as claimed in claim 3, wherein: each side frame (18) is provided with a wheel frame rotating mechanism for simultaneously driving the two wheel frames (21) to rotate around the respective pin shafts (20), and in a turning working condition, the opening directions of the two wheels (14) on the left side and the two wheels (14) on the right side are the same based on a overlooking view, so that the front wheels (14) and the rear wheels (14) are on the same turning radius.
7. A high clearance agricultural vehicle as claimed in claim 6, wherein: each wheel carrier rotation mechanism includes:
an outer seat (31) fixedly connected with the side frame (18);
an external driver (22) controlled by the electric control box (3) and fixedly connected with the outer side seat (31);
the intermediate gear (23) is coaxially and fixedly connected with the output end of the external driver (22);
the first linear transmission assembly comprises a lower rack (25) and a first steering pull rod (26), the lower rack (25) is parallel to each other, the lower rack (25) is positioned below the middle gear (23) and meshed with the middle gear (23), and one end of the first steering pull rod (26) is fixedly connected with one end of the lower rack (25);
the second linear transmission assembly comprises an upper rack (24) and a second steering pull rod (27) which are parallel to each other, the upper rack (24) is positioned on the middle gear (23) and meshed with the middle gear (23), and one end of the second steering pull rod (27) is fixedly connected with one end of the upper rack (24);
one transmission connecting rod (30) is rotatably connected with one wheel frame (21) and the other end of the first steering pull rod (26), and the other transmission connecting rod (30) is rotatably connected with the other wheel frame (21) and the other end of the second steering pull rod (27);
the first linear transmission assembly and the second linear transmission assembly are arranged in a relative motion mode, and the motion track is parallel to the length direction of the vehicle.
8. A high clearance agricultural vehicle as claimed in claim 7, wherein: the two ends of the upper rack (24) are respectively provided with a downward convex lower convex part, the two ends of the lower rack (25) are respectively provided with an upward convex upper convex part, the right lower convex part of the upper rack (24) is fixedly connected with a second steering pull rod (27) when viewed from the axial view angle of the middle gear (23), the second steering pull rod (27) axially movably penetrates through the right upper convex part of the lower rack (25), the left upper convex part of the lower rack (25) is fixedly connected with a first steering pull rod (26), and the first steering pull rod (26) axially movably penetrates through the left lower convex part of the upper rack (24).
9. A high clearance agricultural vehicle as claimed in claim 7, wherein: each wheel frame rotating mechanism comprises two linear bearings (28) fixedly arranged on the side frame (18), and the first steering pull rod (26) and the second steering pull rod (27) are movably connected with the two linear bearings (28) in a penetrating mode respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110155303.0A CN112970360B (en) | 2021-02-04 | 2021-02-04 | High ground clearance agricultural vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110155303.0A CN112970360B (en) | 2021-02-04 | 2021-02-04 | High ground clearance agricultural vehicle |
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| CN112970360A CN112970360A (en) | 2021-06-18 |
| CN112970360B true CN112970360B (en) | 2022-03-01 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264469A (en) * | 1926-01-15 | 1928-01-12 | Gougis Sa Des Ets | An improved motor cultivator or agricultural machine |
| ES264220Y (en) * | 1982-03-30 | 1983-05-16 | Diaz San Emeterio Hnos, S.L. | "PERFECTED TRACTION DEVICE FOR MOTORCYCLES AND THE LIKE". |
| US5901800A (en) * | 1996-08-13 | 1999-05-11 | Wilson; William Andrew | High clearance tractor |
| CN203279475U (en) * | 2013-04-28 | 2013-11-13 | 现代农装科技股份有限公司 | Steering device, high crop clearance chassis comprising same, and sprayer |
| CN204037272U (en) * | 2014-07-01 | 2014-12-24 | 李喜军 | The vehicle chassis of a kind of adjustable ground Clearance and wheelspan |
| CN204707420U (en) * | 2015-05-05 | 2015-10-21 | 殷燕 | The farm management machine of adjustable height and wheelspan |
| CN210760987U (en) * | 2019-10-08 | 2020-06-16 | 湖南农业大学 | Electric high-clearance four-wheel drive four-wheel steering universal chassis |
| CN212243563U (en) * | 2020-06-28 | 2020-12-29 | 河北农业大学 | Agricultural high-ground-clearance field operation vehicle chassis |
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2021
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