CN114271046A - Agricultural rotary cultivator - Google Patents

Abstract

The invention discloses an agricultural rotary cultivator, which comprises: traction engine, rotary tillage mechanism and be used for connecting traction engine and rotary tillage mechanism's traction mechanism, traction engine include: the traction motor is arranged on the traction locomotive and used for driving a track driving wheel to run; the rotary tillage mechanism include: the rotary cultivator comprises a base, a cutter shaft and a rotary tillage motor, wherein the cutter shaft is arranged on the base; the traction mechanism adopts a slipknot connecting rod mechanism to movably connect the rotary tillage mechanism to the traction locomotive; and a supporting mechanism for supporting the rotary tillage mechanism is also arranged on the rotary tillage mechanism. According to the invention, through reasonable arrangement, the balanced distribution of traction force is improved, and the problem of unbalanced stress caused by the self gravity of the rotary tillage mechanism or uneven ground is solved. Meanwhile, the rotary tillage mechanism keeps balanced and stable in operation, so that the depth of tillage of the rotary tillage mechanism is kept consistent.

Description

Agricultural rotary cultivator

The technical field is as follows:

the invention relates to the technical field of agricultural machinery, in particular to an agricultural rotary cultivator.

Background art:

the prior agricultural rotary cultivator mainly comprises two parts: the rotary cultivator comprises a locomotive and a rotary tillage mechanism, wherein the locomotive is generally a tractor driven by a diesel internal combustion engine, and the rotary tillage mechanism is arranged on the locomotive or is dragged by the locomotive to realize operation in an agricultural field. Such conventional agricultural cultivation machines have the following disadvantages:

(1) because traditional agricultural rotary cultivator size is great, can't be applicable to mountain area hills planting area to and the region is comparatively narrow and small, confined area, and rotary tillage mechanism self does not have the function of traveling, so it all need transport with the help of other motor vehicles usually in the transportation, can't directly follow the traction engine and travel on the road.

(2) In traditional agricultural rotary tillage, a locomotive and a rotary tillage mechanism are connected through a traction device, but the existing traction device is complex in structure and difficult to automatically adjust, so that the problem of imbalance in the treatment of the cultivated land can occur when the rotary tillage mechanism runs along with the locomotive, for example, the depth of cultivated land ploughing is unequal due to unbalanced stress.

In view of the above problems, the present inventors have proposed the following.

The invention content is as follows:

the technical problem to be solved by the invention is to overcome the defects of the prior art and provide an agricultural rotary cultivator.

In order to solve the technical problems, the invention adopts the following technical scheme: an agricultural rotary cultivator comprising: traction engine, rotary tillage mechanism and be used for connecting traction engine and rotary tillage mechanism's traction mechanism, traction engine include: the traction motor is arranged on the traction locomotive and used for driving a track driving wheel to run; the rotary tillage mechanism include: the rotary cultivator comprises a base, a cutter shaft and a rotary tillage motor, wherein the cutter shaft is arranged on the base; the traction mechanism adopts a slipknot connecting rod mechanism to movably connect the rotary tillage mechanism to the traction locomotive; and a supporting mechanism for supporting the rotary tillage mechanism is also arranged on the rotary tillage mechanism.

Furthermore, in the above technical solution, the support mechanism is disposed at one end of the upper base of the rotary tillage mechanism close to the tractor.

Further, in the above technical solution, the support mechanism includes: the support arm with be located the backup pad at the support arm lower extreme, the backup pad upwards the perk towards the direction of traction vehicle.

Furthermore, in the above technical solution, the supporting arm is movably connected with the base in a height adjustable manner.

Furthermore, in the above technical scheme, the support mechanism is arranged at one end of the base of the rotary tillage mechanism far away from the traction locomotive, the support mechanism is a movable plate pivoted on the base, and the movable plate is attached to the ground in the working state of the agricultural rotary cultivator.

Furthermore, in the above technical scheme, an overturning driving member is arranged between the traction locomotive and the traction mechanism, and the traction mechanism is driven to rotate by the overturning driving member, so as to drive the rotary tillage mechanism and the supporting mechanism arranged on the rotary tillage mechanism to leave the ground.

Further, in the above technical solution, the turnover driving member is any one of a hydraulic piston member, a screw rod, a pneumatic piston member, an electrically driven chain transmission mechanism, and a wire winding mechanism.

Further, in the above technical solution, the traction mechanism includes: the overturning device comprises an overturning frame pivoted on the traction locomotive, a fixed frame fixed on a base of the cultivation device and a slipknot connecting rod mechanism connected between the overturning frame and the fixed frame, wherein an overturning driving piece is arranged on the traction locomotive and pivoted with the overturning frame, and the overturning driving piece is positioned below a pivoting part between the traction locomotive and the overturning frame.

Furthermore, in the above technical solution, a drag chain is further disposed between the roll-over stand and the fixed mount.

Further, in the above technical solution, the traction mechanism includes: the overturning device comprises a support frame fixed on the traction locomotive and a slipknot connecting rod mechanism connected between the traction locomotive and a base, wherein the overturning driving piece is pivoted on the support frame and pivoted with the base, and is positioned above the slipknot connecting rod mechanism.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through reasonable arrangement, the balanced distribution of traction force is improved, and the problem of unbalanced stress caused by the self gravity of the rotary tillage mechanism or uneven ground is solved.

2. The invention is also provided with a supporting mechanism which can be matched with the traction mechanism to ensure that the rotary tillage mechanism keeps balanced and stable in operation and the depth of tillage of the rotary tillage mechanism is kept consistent, so that the situation that the rotary tillage mechanism sinks deeply into the ground is avoided.

3. The invention also has a turning function, and the rotary tillage mechanism is driven to rotate by the turning driving piece to be separated from the ground, so that the rotary tillage mechanism is suspended. Therefore, the traction locomotive can directly bear the rotary tillage mechanism to run, and the rotary tillage mechanism does not need to be carried by other motor vehicles.

4. The invention does not use a high-horsepower diesel engine as power, uses a crawler electric traction locomotive instead, and uses a battery to supply power for the traction motor to drive the traction locomotive to operate. Meanwhile, a cutter shaft in the rotary tillage mechanism is also driven by a rotary tillage motor. Because the internal combustion engine is generally adopted as a power source in the prior art, the power required by cultivation is linked with the power source through a complex transmission mechanism, so that the loss of intermediate energy consumption is large, and the efficiency is low. The traction motor and the rotary tillage motor are mutually independent and are respectively used as independent power sources. Therefore, a proper motor can be selected according to needs, so that the energy consumption loss in the middle transmission process is reduced, and the service efficiency of the battery is improved.

Description of the drawings:

FIG. 1 is a front view of an operational state of an embodiment of the present invention;

FIG. 2 is a front view of a cultivator of the present invention in a turned state;

FIG. 3 is a top view of the tractor with the locomotive removed in accordance with one embodiment of the present invention;

FIG. 4 is a right side view of a roll-over stand according to an embodiment of the present invention;

FIG. 5 is a right side view of a mounting bracket and a rotary tillage mechanism in accordance with an embodiment of the present invention;

FIG. 6 is a front view of the second embodiment of the present invention in an operating state;

fig. 7 is a front view of the third embodiment of the present invention in an operating state.

The specific implementation mode is as follows:

the invention is further illustrated below with reference to specific embodiments and the accompanying drawings.

The invention relates to an agricultural rotary cultivator, which is shown in figures 1 to 5, and the embodiment of the invention comprises the following components: the rotary cultivator comprises a traction locomotive 1, a rotary tillage mechanism 2, a traction mechanism 30 for connecting the traction locomotive 1 and the rotary tillage mechanism 2, a turnover driving piece 6 and a supporting mechanism 8.

The traction locomotive 1 comprises: a vehicle body 10 using a track, and a traction motor 11 mounted on the traction vehicle 1 for driving a track driving wheel to operate. In the first embodiment, the locomotive body 10 is an electric track-driven locomotive, and in order to facilitate direction control, the two traction motors 11 are respectively used for driving the left and right track-driven wheels to operate, so that the advancing, retreating and steering of the whole locomotive body 10 can be controlled by controlling the output of the left and right traction motors 11. The traction motor 11 may be a brushless dc motor, and its output shaft drives the driving wheel in the caterpillar track to run through a gear, a chain, or a belt. The traction vehicle 1 is powered by a lithium battery, which is generally heavier and can be located on the other side of the rotary tillage mechanism 2, so as to provide a counterweight effect to balance the entire machine.

The rotary tillage mechanism 2 comprises: the rotary cultivator comprises a base 21, a cutter shaft 22 arranged on the base 21 and a rotary tillage motor 23 used for driving the cutter shaft 22 to operate, wherein rotary cutters 20 are distributed on the cutter shaft 22 along the axial direction. The output shaft of the rotary tillage motor 23 is interlocked with the cutter shaft 22 through a transmission mechanism. In the operation process, the rotary cutter 20 rotates along with the cutter shaft 22 in an express way, so that the tillage function is realized. Hard objects such as stones are inevitable in the cultivated land, when the rotary blade 20 encounters stones during the rotation process, the rotary blade 20 may be locked and cannot rotate, and at the moment, the rotary tillage motor 23 may be burnt due to an excessive load. Therefore, the transmission mechanism between the output shaft of the rotary tillage motor 23 and the blade shaft 22 in the first embodiment has at least one non-rigid transmission component. Therefore, the situation that the rotary tillage motor 23 is burnt down due to overlarge load under extreme conditions can be avoided. Specifically, the non-rigid transmission component is a belt transmission component 24 arranged on an output shaft of the rotary tillage motor 23, and when the rotary blade 20 is locked and can not rotate, the rotary tillage motor 23 can be prevented from being burnt out through the slipping of the belt transmission component 24.

The rotary tillage mechanism 2 is movably connected to the traction locomotive 1 through a traction mechanism 30. The traction mechanism 30 includes: a roll-over stand 3 pivoted on the traction locomotive 1, a fixed mount 4 fixed on the rotary tillage mechanism 2, and a slipknot connecting rod mechanism 5 connected between the roll-over stand 3 and the fixed mount 4. In addition, the turnover driving member 6 is mounted on the traction vehicle 1 and pivotally connected to the turnover frame 3. As shown in fig. 1, when working, the rotary tillage mechanism 2 is movably connected to the tractor 1 through the traction mechanism 30, and when the tractor 1 moves forward, the rotary tillage mechanism 2 is driven by the traction mechanism 30 to move forward, thereby realizing tillage operation. After the tillage is finished, the traction mechanism 30 pushes the roll-over stand 3 to rotate through the roll-over driving member 6, and pulls the fixed frame 4 and the rotary tillage mechanism 2 to rotate, so that the rotary tillage mechanism 2 and the supporting mechanism 8 are separated from the bottom surface to be suspended. At the moment, the traction locomotive 1 can directly bear the rotary tillage mechanism 2 to run, and the rotary tillage mechanism 2 does not need to be carried by other motor vehicles. When in use, a user can directly drive the whole farming machine to a designated position through the traction locomotive 1, and then put down the rotary tillage mechanism through the invention to carry out farming operation.

The following is a preferred embodiment of the traction mechanism 30 in this embodiment, and in this embodiment, the roll-over stand 3 includes: a main roll-over stand bar 31, a longitudinal roll-over stand bar 32, a roll-over stand suspension bar 33 and a roll-over sub-stand 34. Wherein the main rod 31 of the roll-over stand is transversely arranged, and the two longitudinal rods 32 of the roll-over stand are longitudinally arranged above the main beam 31 of the roll-over stand. The roll-stand suspension rods 33 are located at the upper end of each roll-stand longitudinal rod 32 and extend in the direction of the rotary tillage mechanism 2. The roll-over sub-frame 34 is located below the roll-over main frame 31. The fixing frame 4 comprises: a fixed support bar 41 and a fixed cross bar 42 supported by the fixed support bar 41. The fixing frame 4 may be independently installed and then fixed to the base 21 of the rotary tillage mechanism 2 by welding, or may be directly formed integrally with the base 21.

The slipknot link mechanism 5 comprises: trace 53 and the slipknot structure 50 that is located trace 53 both ends, slipknot link mechanism 5 swing joint is between roll-over stand 3 and mount 4, and this slipknot link mechanism 5 includes: an upper articulated linkage 51 located above and a lower articulated linkage 52 located below.

In order to ensure balance during towing, the upper and lower articulated linkages 51, 52 may be distributed in the following manner: two upper slipknot linkages 51 symmetrically distributed and two lower slipknot linkages 52 symmetrically distributed. And the two upper slipknot link mechanisms 51 which are symmetrically distributed are in a splayed shape, the two lower slipknot link mechanisms 52 which are symmetrically distributed are in a splayed shape, and the upper slipknot link mechanisms 51 and the lower slipknot link mechanisms 52 are distributed in an opposite shape. I.e. on the roll-over stand 3: the slipknot structure 50 used for connecting one end of the two upper slipknot link mechanisms 51 is positioned at the outer side positions of the two sides of the main rod 31 of the roll-over stand; the slipknot structure 50 for connecting one end of the two lower slipknot linkages 52 is located on the roll-over stand sub-frame 34 and the distance between the two slipknot structures 50 on the roll-over stand sub-frame 34 is less than the distance between the two slipknot structures 50 on the roll-over stand main bar 31. On the fixed bracket 4, a slipknot structure 50 used for connecting the other ends of the two upper slipknot link mechanisms 51 is positioned near the middle area of the fixed cross bar 42; the slipknot structure 50 for connecting the other ends of the two lower slipknot linkages 52 may be directly fixed to the base 21 of the rotary tillage mechanism and the distance between the two slipknot structures 50 on the fixed cross bar 42 is less than the distance between the two slipknot structures 50 on the base 21. Of course, the upper and lower articulated linkages 51 and 52 may be distributed in the opposite manner.

The slipknot structure 50 can adopt a ball head connection mode, a shaft hole connection mode, a universal joint connection mode or other slipknot connection modes, so that the direction of the rotary tillage mechanism 2 can be automatically adjusted in the operation process, the balance of two sides is realized, and meanwhile, the whole rotary tillage mechanism 2 can be limited to a certain extent by being matched with the traction of the upper slipknot connecting rod mechanism 51 and the lower slipknot connecting rod mechanism 52, so that the rotary tillage mechanism 2 cannot deflect too much. In addition, the linkage 53 may adopt a telescopic structure to realize length adjustment.

In addition, since the rotary tilling mechanism 2 cannot normally travel on the road. In order to ensure that the present invention can normally run on the road, the rotary tillage mechanism 2 needs to be retracted during non-tillage periods. At this time, the traction mechanism can be used to rotate the rotary tillage mechanism 2, so that the rotary tillage mechanism 2 leaves the ground. Turning drive member 6, shown in fig. 2, in this embodiment has a pushing function to directly turn frame 3, so as to drive holder 4 and rotary tillage mechanism 2 to rotate, thereby moving the entire rotary tillage mechanism 2 away from the ground. The turning driving part 6 can adopt a hydraulic piston part, and can also adopt any one of a screw rod, a pneumatic piston component, an electric driving chain transmission mechanism and a steel wire winding mechanism.

In this embodiment, the turnover driving member 6 is located below the pivot joint between the tractor 1 and the turnover frame 3, so that the turnover driving member 6 has a short forming distance and does not need to have a long overall length when working.

Because the roll-over stand 3 is movably connected with the fixed mount 4 through the slipknot link mechanism 5, when the roll-over driving member 6 directly drives and pushes the roll-over stand 3 to rotate, if the slipknot link mechanism 5 directly bears the force to drive the roll-over stand 3 to rotate, the slipknot structures 50 at the two ends of the slipknot link mechanism 5 can be caused to fall off or be damaged due to the overlarge stress, so the preferred mode is driven by a traction chain 7. The drag chain 7 is located between the roll-over stand 3 and the fixed stand 4 and remains suitably redundant. When the roll-over stand 3 rotates, in the initial stage, because the slipknot link mechanism 5 exists, the fixed mount 4 can not be directly driven to rotate, and along with the continuous rotation of the roll-over stand 3, the drag chain 7 is tensioned, and then the fixed mount 4 is pulled to start to rotate along with the roll-over stand 3 until the whole rotary tillage mechanism 2 is separated from the ground, so as to realize suspension.

In order to increase the moment and reduce the force, the pulling force on the drag chain 7 is preferably distributed directly in the tangential direction of the rotation of the fixed frame 4, so in this embodiment one end of the drag chain 7 can be fixed directly at the end of the roll-over stand suspension rod 33. Because the roll-over stand suspension rod 33 extends towards the direction of the fixed mount 4, the distance between the tail end of the roll-over stand suspension rod 33 and the fixed mount 4 is shorter, the drag chain 7 is fixed at the tail end of the roll-over stand suspension rod 33, the length of the drag chain 7 can be effectively shortened, and the pulling force of the drag chain is matched with the tangential direction of the rotation of the fixed mount 4 as much as possible, thereby reducing the stress. The drag chain 7 of the present invention may be a drag wire or a rope.

In addition, for the first embodiment, when the root-rotating device 2 works, the tilling depth of the rotary cutter 20 may gradually decrease with the operation of the cutter shaft 22. Therefore, in order to ensure that the depth of the land plowed by the rooter 2 is consistent, the supporting mechanism 8 is required. As shown in fig. 1, 2, and 3, a support mechanism 8 is further disposed near one end of the traction vehicle 1, and the support mechanism 8 includes: two supporting arms 81 with adjustable height and a supporting plate 82 positioned at the lower ends of the two supporting arms 81; the support plate 82 is tilted upward toward the traction vehicle 1, and its lower surface is a flat surface or a curved surface. Due to the existence of the supporting plate 82, the contact surface with the ground is larger, so that the pressure on the ground is smaller, the whole rotary tillage mechanism 2 cannot gradually penetrate into the ground, and the depth of the plowed ground is kept consistent. The traction mechanism 30 pushes the roll-over stand 3 to rotate through the roll-over driving member 6, and pulls the fixed frame 4 and the rotary tillage mechanism 2 to rotate, so that the rotary tillage mechanism 2 and the supporting mechanism 8 are separated from the bottom surface to realize suspension.

The height adjusting mode of the supporting mechanism 8 is as follows: a sleeve 83 is fixed on the rotary tillage mechanism 2, the supporting arm 81 is inserted in the sleeve 83, the supporting arm 81 is fixed in the sleeve 83 through a pin, and a plurality of positioning holes 810 matched with the pin are formed in the supporting arm 81. Thus, the height of the supporting arm 81 can be adjusted by the pin matching with the positioning holes 810 with different heights. Of course, the height adjustment can also be realized by adopting a screw structure.

As shown in fig. 6, this is embodiment two of the present invention. In the second embodiment, the traction mechanism 30 includes: the overturning device comprises a support frame 35 fixed on the traction locomotive 1 and a slipknot connecting rod mechanism 5 connected between the traction locomotive 1 and a base 21, wherein an overturning driving piece 6 is installed on the support frame 35 and is pivoted with the base 21, and the overturning driving piece 6 is positioned above the slipknot connecting rod mechanism 5. The traction purpose can be realized, and the rotary tillage device 2 can be directly driven to turn over by the turning driving piece 6.

As shown in fig. 7, this is the third embodiment of the present invention. In the third embodiment, the supporting mechanism 8 is disposed on the rotary tillage mechanism 2 at an end of the base 21 away from the tractor 1, the supporting mechanism 8 is a movable plate 84 pivotally connected to the base 21, and the movable plate 84 is attached to the ground in the working state of the agricultural rotary tiller. The movable plate 84 supports the whole rotary tillage mechanism 2, so that the whole rotary tillage mechanism 2 cannot gradually go deep into the soil, and the depth of the plowed soil is kept consistent. When the agricultural rotary cultivator is not in operation or is driven to hang by the turning driving part 6, the movable plate 84 naturally droops under the action of gravity.

It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims (10)

1. An agricultural rotary cultivator comprising: traction engine (1), rotary tillage mechanism (2) and be used for connecting traction engine (1) and rotary tillage mechanism (2) traction mechanism (30), its characterized in that:

the traction locomotive (1) comprises: the traction vehicle comprises a vehicle body (10) adopting a track and a traction motor (11) which is arranged on a traction vehicle (1) and is used for driving a track driving wheel to run;

the rotary tillage mechanism (2) comprises: the rotary cultivator comprises a base (21), a cutter shaft (22) arranged on the base (21) and a rotary tillage motor (23) used for driving the cutter shaft (22) to operate, wherein rotary cutters (20) are distributed on the cutter shaft (22) along the axial direction;

the traction mechanism (30) adopts a slipknot connecting rod mechanism (5) to movably connect the rotary tillage mechanism (2) to the traction locomotive (1);

the rotary tillage mechanism (2) is also provided with a supporting mechanism (8) for supporting the rotary tillage mechanism (2).

2. An agricultural rotary cultivator as claimed in claim 1, wherein: the supporting mechanism (8) is arranged at one end of an upper base (21) of the rotary tillage mechanism (2) close to the traction locomotive (1).

3. An agricultural rotary cultivator as claimed in claim 2, wherein: the supporting mechanism (8) comprises: the support arm (81) and the support plate (82) that is located at the lower extreme of support arm (18), support plate (82) upwards perk towards the direction of traction vehicle (1).

4. An agricultural rotary cultivator as claimed in claim 3, wherein: the supporting arm (81) is movably connected with the base (21) in a height-adjustable manner.

5. An agricultural rotary cultivator as claimed in claim 1, wherein: the supporting mechanism (8) is arranged at one end, away from the traction locomotive (1), of the base (21) on the rotary tillage mechanism (2), the supporting mechanism (8) is a movable plate (84) pivoted on the base (21), and the movable plate (84) is attached to the ground in the working state of the agricultural rotary cultivator.

6. An agricultural rotary cultivator as claimed in any one of claims 1 to 5, wherein: an overturning driving piece (6) is arranged between the traction locomotive (1) and the traction mechanism (30), and the traction mechanism (30) is driven to rotate through the overturning driving piece (6), so that the rotary tillage mechanism (2) and the supporting mechanism (8) arranged on the rotary tillage mechanism (2) are driven to leave the ground.

7. An agricultural rotary cultivator as claimed in claim 6, wherein: the overturning driving piece (6) is any one of a hydraulic piston piece, a screw rod, an air pressure piston piece, an electric driving chain transmission mechanism and a steel wire winding mechanism.

8. An agricultural rotary cultivator as claimed in claim 6, wherein: the traction mechanism (30) comprises: the movable-joint type cultivation device comprises a turnover frame (3) pivoted on a traction locomotive (1), a fixed frame (4) fixed on a base (21) of the cultivation device (2), and a movable-joint connecting rod mechanism (5) connected between the turnover frame (3) and the fixed frame (4), wherein a turnover driving piece (6) is installed on the traction locomotive (1) and pivoted with the turnover frame (3), and the turnover driving piece (6) is positioned below a pivoting part between the traction locomotive (1) and the turnover frame (3).

9. An agricultural rotary cultivator as claimed in claim 8, wherein: and a traction chain (7) is also arranged between the roll-over stand (3) and the fixed mount (4).

10. An agricultural rotary cultivator as claimed in claim 6, wherein: the traction mechanism (30) comprises: the overturning device comprises a support frame (35) fixed on the traction locomotive (1) and a slipknot connecting rod mechanism (5) connected between the traction locomotive (1) and a base (21), wherein an overturning driving piece (6) is installed on the support frame (35) and is pivoted with the base (21), and the overturning driving piece (6) is positioned above the slipknot connecting rod mechanism (5).

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