Flattening device of cultivator

Abstract

The utility model discloses a leveling device of a cultivator, belongs to the technical field of agricultural cultivation machinery, and solves the problems that the leveling device of the existing cultivator is in rigid connection, the height of the leveling device can change along with the change of the walking height of the cultivator, and an ideal effect cannot be achieved. The leveling device comprises a leveling pipe, wherein the leveling pipe is connected with a frame of the cultivator through a height adjusting assembly; the height adjusting assembly comprises a first linear driver, a lifting frame and a flexible connecting piece, one end of the lifting frame is connected with the frame in a hinged mode, one end of the first linear driver is connected with the frame in a hinged mode, the other end of the first linear driver is connected with the other end of the lifting frame in a hinged mode, and the leveling pipe is movably connected with the lifting frame through the flexible connecting piece. The flat dragging device is flexibly connected with the cultivator, when the flat dragging device is used, the flat dragging device is not changed along with the walking height change of the cultivator, partial uneven positions are intervened according to the horizontal plane of a paddy field, then the flat dragging effect is improved, and the flat dragging device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural tillage machinery, and more specifically, it relates to a leveling device for a tiller. Background Art

[0002] In traditional farming operations, in order to ensure the healthy growth of rice seedlings, after the paddy field is plowed, it is usually necessary to level the paddy field surface. With the continuous progress of technology, the emergence of tillers has gradually replaced manual labor. In existing tillers, a leveling device is installed at the rear. After the tiller plows, the paddy field can be leveled, greatly improving the tillage efficiency.

[0003] For traditional tiller leveling devices, such as the leveling mechanism of a rice spreading cultivation machine disclosed in the publication number: CN105766155A. Its leveling mechanism includes a sowing tank, a leveling pipe and a mounting rod. The leveling pipe is fixedly installed on the tiller and can level the paddy field surface. However, this leveling pipe has a fixed structure. During actual use, it is impossible to adjust the height of the leveling pipe according to the soil quality of the paddy field. Once the paddy field has low hardness and the tiller sinks too deep, the height of the leveling pipe will drop, taking away a large amount of mud and water, which is not conducive to the growth of rice seedlings. Once the paddy field has high hardness and the tiller sinks too shallowly, the height of the leveling pipe will rise, and only the mud with a high bulge can be leveled, and the leveling effect is not very ideal.

[0004] Therefore, it is urgent to design a leveling device for a tiller to solve the above technical problems. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a leveling device for a tiller aiming at the above deficiencies of the prior art, which can adjust the height of the leveling pipe according to the soil quality of the paddy field, thereby improving the leveling effect and being more convenient to use.

[0006] The technical solution of the utility model is as follows: A leveling device for a tiller includes a leveling pipe, and the leveling pipe is connected to the frame of the tiller through a height adjustment assembly; the height adjustment assembly includes a first linear actuator, a lifting frame and a flexible connecting piece. One end of the lifting frame is hinged to the frame, one end of the first linear actuator is hinged to the frame, and the other end is hinged to the other end of the lifting frame. The leveling pipe is movably connected to the lifting frame through the flexible connecting piece.

[0007] As a further improvement, the lifting frame is a U-shaped frame. Hinge seats extending downward are provided on both sides of the frame. The open ends of the lifting frame are respectively hinged to the two hinge seats, and the other end of the first linear actuator is hinged to the closed end of the lifting frame.

[0008] Further, the flexible connecting member includes at least two flexible strips which are evenly distributed on the lifting frame, and both ends of each flexible strip are respectively and movably connected to the lifting frame and the leveling pipe.

[0009] Further, the flexible strip is a steel chain or a wire or a drawstring.

[0010] Further, connecting ears are provided on both the lifting frame and the leveling pipe, and both ends of the flexible strip are detachably connected to the corresponding connecting ears on the lifting frame and the leveling pipe.

[0011] Further, the cross-section of the leveling pipe is circular, and both ends of the leveling pipe are closed spherical structures.

[0012] Further, second linear drivers are provided on both sides of the lifting frame, the output direction of the second linear driver points to the position of the leveling pipe, and a limiting plate for fixing the leveling pipe is provided at the output end of the second linear driver.

[0013] Further, the limiting plate is a semi-circular plate, an opening is provided at the middle position of the semi-circular plate, and the width of the opening is greater than the diameter of the leveling pipe.

[0014] Further, telescopic rods are provided on both sides of the lifting frame, the telescopic direction of the telescopic rods points to the position of the leveling pipe, one end of the second linear driver is fixed to one end of the telescopic rod, the other end is connected to the other end of the telescopic rod, and the limiting plate is installed at the other end of the telescopic rod.

[0015] Further, the first linear driver is a hydraulic cylinder or a pneumatic cylinder or an electric push rod; the second linear driver is a hydraulic cylinder or a pneumatic cylinder or an electric push rod.

[0016] Beneficial effects

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] 1. For the leveling device of the present utility model, the leveling pipe is connected to the vehicle frame through the height adjustment assembly. During actual use, the height of the leveling pipe can be adjusted according to the soil quality of the paddy field. The first linear driver drives the lifting frame to rise and fall, driving the leveling pipe to rise and fall, so as to adjust the height of the leveling pipe, making the leveling pipe better fit into the mud of the paddy field, thereby improving the leveling effect and being more convenient to use.

[0019] 2. The leveling device of the present utility model has a leveling pipe connected to the lifting frame by a flexible connector, which can achieve the effects of floating up and down and swinging left and right. During actual use, when encountering hard mud blocks or stones, the leveling pipe can automatically lift up or deflect, avoiding rigid collisions between the leveling pipe and the mud blocks or stones, which may cause damage or even the problem that the tilling machine cannot move forward continuously. It is especially suitable for use in paddy fields in hilly areas of the south.

[0020] 3. The leveling device of the present utility model has a leveling pipe that is a circular pipe with closed spherical structures at both ends. On the one hand, it can make the leveling pipe float up better and level the paddy field surface, and on the other hand, it can avoid scratching the ridge of the paddy field at both ends of the leveling pipe, improving the tilling effect.

[0021] 4. The leveling device of the present utility model is provided with a second linear actuator and a limiting plate on both sides of the lifting frame. During actual use, according to the nature of the paddy field, such as when the soil of the paddy field is soft and there are no stones, the second linear actuator can be used to drive the limiting plate to press on the leveling pipe, so that the leveling pipe is fixed in a horizontal position, which can greatly improve the leveling efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the present utility model when the leveling pipe is fixed.

[0024] Wherein: 1 - leveling pipe, 2 - vehicle frame, 3 - first linear actuator, 4 - lifting frame, 5 - hinge seat, 6 - flexible strip, 7 - connecting ear, 8 - second linear actuator, 9 - limiting plate, 10 - telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the present utility model with reference to specific embodiments in the drawings.

[0026] Refer to Figure 1-2 , a leveling device for a tilling machine of the present utility model includes a leveling pipe 1, which is connected to the vehicle frame 2 of the tilling machine through a height adjustment assembly. Specifically, the leveling pipe 1 is located at the lower rear of the vehicle frame 2 to achieve leveling immediately after plowing. Preferably, its height adjustment assembly includes a first linear actuator 3, a lifting frame 4, and a flexible connector. Among them, the lifting frame 4 is located below the vehicle frame 2, one end of the lifting frame 4 is hinged to the vehicle frame 2, one end of the first linear actuator 3 is hinged to the vehicle frame 2, and the other end is hinged to the other end of the lifting frame 4. When the first linear actuator 3 moves linearly in and out, it can drive the lifting frame 4 to lift and lower.

[0027] Preferably, the lifting frame 4 is a U-shaped frame. Hinge seats 5 extending downward are provided on both sides of the vehicle frame 2. The two open ends of the lifting frame 4 are respectively hinged to the two hinge seats 5, and the other end of the first linear actuator 3 is hinged to the closed end of the lifting frame 4, realizing the hinged installation among the lifting frame 4, the first linear actuator 3 and the vehicle frame 2. Moreover, the U-shaped lifting frame 4 facilitates the arrangement of flexible connectors.

[0028] For the leveling device of the present utility model, its leveling pipe 1 is connected to the vehicle frame 2 through a height adjustment assembly. During actual use, the height of the leveling pipe 1 can be adjusted according to the soil quality of the paddy field. The first linear actuator 3 drives the lifting frame 4 to lift, driving the leveling pipe 1 to lift, thereby adjusting the height of the leveling pipe 1, enabling the leveling pipe 1 to better fit into the mud of the paddy field, further improving the leveling effect and making it more convenient to use.

[0029] Preferably, the leveling pipe 1 is movably connected to the lifting frame 4 through a flexible connector. The setting of the flexible connector enables the leveling pipe 1 to float up and down or swing left and right during the leveling process. Specifically, the flexible connector includes at least two flexible strips 6. The flexible strips 6 are soft components to ensure that the leveling pipe 1 can float up and down and swing left and right. Both ends of each flexible strip 6 are respectively movably connected to the lifting frame 4 and the leveling pipe 1. The flexible strips 6 are evenly distributed on the lifting frame 4. The multiple evenly arranged flexible strips 6 can improve the connection stability of the leveling pipe 1, making the swinging angle of the leveling pipe 1 not too large, ensuring that the leveling pipe 1 can level the paddy field. Further, the flexible strip 6 is an iron chain or a wire or a pull rope, preferably an iron chain, which has better connection stability while meeting the requirements of floating and swinging. Furthermore, connection ears 7 are provided on both the lifting frame 4 and the leveling pipe 1. Both ends of the flexible strip 6 are detachably connected to the corresponding connection ears 7 on the lifting frame 4 and the leveling pipe 1. Specifically, the flexible strip 6 can be tied to the connection ear 7 with a wire or directly tied to the connection ear 7 to realize the installation and fixation of the flexible strip 6, and at the same time, it is convenient for disassembly, installation and maintenance.

[0030] For the leveling device of the present utility model, its leveling pipe 1 is connected to the lifting frame 4 by using a flexible connector, which can achieve the effects of floating up and down and swinging left and right. During actual use, when encountering harder mud blocks or stones, the leveling pipe 1 can automatically lift upward or deflect, avoiding rigid collision between the leveling pipe 1 and the mud blocks or stones and damage, and even preventing the problem that the tiller cannot move forward continuously. It is especially suitable for use in paddy fields in hilly areas of the south.

[0031] Preferably, the cross-section of the leveling pipe 1 is circular, and both ends of the leveling pipe 1 are closed spherical structures.

[0032] The leveling device of the present utility model has a leveling pipe 1 which is a circular pipe with closed spherical structures at both ends. On the one hand, it can make the leveling pipe 1 float upward and level the paddy field surface better. On the other hand, it can prevent the two ends of the leveling pipe from scratching the ridge of the field, improving the tilling effect.

[0033] Preferably, second linear drivers 8 are also provided on both sides of the lifting frame 4. The output direction of the second linear driver 8 points to the position of the leveling pipe 1, and a limiting plate 9 for fixing the leveling pipe 1 is provided at the output end of the second linear driver 8. When the second linear driver 8 makes a linear telescopic movement, it can drive the limiting plate 9 to move towards the leveling pipe 1. Further, the limiting plate 9 is a semi-circular plate with an opening in the middle position, and the width of the opening is greater than the diameter of the leveling pipe 1, ensuring that the limiting plate 9 can be stuck in the leveling pipe 1. After the limiting plate 9 is stuck in the leveling pipe 1, under the thrust of the second linear driver 8 and the pulling force of the flexible strip 6, a fixed triangle is formed, thus realizing the fixation of the leveling pipe 1.

[0034] The leveling device of the present utility model, by providing the second linear driver 8 and the limiting plate 9 on both sides of the lifting frame 4, during actual use, according to the nature of the paddy field, such as when the soil of the paddy field is soft and without stones, the second linear driver 8 can be used to drive the limiting plate 9 to press on the leveling pipe 1, so that the leveling pipe 1 is fixed in a horizontal position, which can greatly improve the leveling efficiency and effect.

[0035] Preferably, telescopic rods 10 are also provided on both sides of the lifting frame 4. The telescopic direction of the telescopic rod 10 points to the position of the leveling pipe 1, that is, the telescopic direction of the telescopic rod 10 is the same as the output direction of the second linear driver 8. One end of the second linear driver 8 is fixed to one end of the telescopic rod 10, and the other end is connected to the other end of the telescopic rod 10. The limiting plate 9 is installed at the other end of the telescopic rod 10. The setting of the telescopic rod 10 can play a guiding role in the movement of the second linear driver 8 and improve the stability of the movement of the limiting plate 9.

[0036] Preferably, the first linear driver 3 in this embodiment is a hydraulic cylinder or a pneumatic cylinder or an electric push rod, preferably a hydraulic cylinder, which can provide a greater driving force; the second linear driver 8 in this embodiment is a hydraulic cylinder or a pneumatic cylinder or an electric push rod, preferably a pneumatic cylinder, with a relatively low cost.

[0037] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, which will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A tiller for a tilling machine, comprising a tiller pipe (1), characterized in that: The towing and leveling tube (1) is connected to the frame (2) of the tiller through a height adjustment component; the height adjustment component comprises a first linear drive (3), a lifting frame (4) and a flexible connecting piece, one end of the lifting frame (4) is hingedly connected to the frame (2), one end of the first linear drive (3) is hingedly connected to the frame (2), and the other end is hingedly connected to the other end of the lifting frame (4), and the towing and leveling tube (1) is movably connected to the lifting frame (4) through the flexible connecting piece.

2. The leveler of a tiller according to claim 1, characterized in that: The lifting frame (4) is a U-shaped frame, and downwardly extending hinged seats (5) are provided on both sides of the frame (2). The two opening ends of the lifting frame (4) are respectively hingedly connected to the two hinged seats (5), and the other end of the first linear drive (3) is hingedly connected to the closed end of the lifting frame (4).

3. The leveler of a tiller according to claim 1, characterized in that: The flexible connecting member comprises at least two flexible strips (6), the flexible strips (6) are evenly distributed on the lifting frame (4), and both ends of each flexible strip (6) are movably connected to the lifting frame (4) and the leveling tube (1) respectively.

4. The leveler of a tiller according to claim 3, characterized in that: The flexible strip (6) is an iron chain, an iron wire or a pull rope.

5. The leveler for a tiller according to claim 3, characterized in that: The lifting frame (4) and the leveling tube (1) are both provided with connecting ears (7), and the two ends of the flexible strip (6) are respectively detachably connected to the corresponding connecting ears (7) of the lifting frame (4) and the leveling tube (1).

6. The leveler of a tiller according to claim 1, characterized in that: The cross section of the flattened tube (1) is circular, and both ends of the flattened tube (1) are closed spherical structures.

7. A tiller for a tilling machine according to any one of claims 1 to 6, characterized in that: A second linear drive (8) is also provided on both sides of the lifting frame (4), the output direction of the second linear drive (8) points to the position of the flattening tube (1), and a limiting plate (9) for fixing the flattening tube (1) is provided at the output end of the second linear drive (8).

8. The leveler for a tiller according to claim 7, characterized in that: The limiting plate (9) is a semicircular plate, an opening is provided in the middle of the semicircular plate, and the width of the opening is greater than the diameter of the flattening tube (1).

9. The leveler for a tiller according to claim 7, characterized in that: Telescopic rods (10) are also provided on both sides of the lifting frame (4), and the telescopic direction of the telescopic rods (10) points to the position of the flattening tube (1). One end of the second linear drive (8) is fixed to one end of the telescopic rod (10), and the other end is connected to the other end of the telescopic rod (10). The limit plate (9) is installed at the other end of the telescopic rod (10).

10. The leveler of a tiller according to claim 9, characterized in that: The first linear drive (3) is a hydraulic cylinder or a gas cylinder or an electric push rod; the second linear drive (8) is a hydraulic cylinder or a gas cylinder or an electric push rod.

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