Soil preparation device mounted on quadruple mechanism

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a soil preparation device mounted on a quadruple mechanism, which comprises two groups of quadruple rod racks, as well as a soil pressing and crushing component and a soil preparation and trowelling component which are connected below the quadruple rod racks, each group of four-link rack structurally comprises an arc-shaped connecting piece, a pressure adjusting device, a cross rod I, a cross rod II, a vertical rod and a crank arm; the pressure adjusting device structurally comprises an adjusting screw rod, a pressure spring and an adjusting nut; the four-linkage-rod land preparation machine is suitable for land preparation operation, and the vertical height of the whole four-linkage-rod rack can be adjusted through the pressure adjusting device according to the land conditions of different lands, so that the pressing and soil breaking component and the land preparation and trowelling component below are driven to move up and down at the same time; in addition, the downward pressure of the four-linkage-rod rack and the angle and pressure of the patter can be adjusted at any time according to needs, the applicability is higher, the structure is simple, and economical and practical effects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a land preparation device mounted on a four-unit mechanism for land preparation operations. Background Technology

[0002] With the continuous improvement of productivity and the rapid development of the rural economy, more and more agricultural machinery has been promoted and applied. The emergence of agricultural tillage machines, threshers, harvesters, etc., has greatly liberated rural labor and improved agricultural production efficiency. Tillage refers to a series of soil cultivation measures carried out before crop sowing or transplanting. Tillage operations include leveling the land and loosening the soil, but the existing tillage machinery has a relatively complex structure.

[0003] Chinese patent CN217742162U discloses a land leveling device that uses leveling components and rolling rollers to level and compact the soil in the repair area. Compared with traditional structures, this device uses a leveling scraper that moves with the vehicle to level the soil in the repair area, while the output end of the hydraulic cylinder applies downward pressure to the frame plate, so that the rolling rollers compact the soil while rolling with the vehicle, thereby improving the flatness and compactness of the repair area.

[0004] However, the following defects and deficiencies exist in the application process: (1) The leveling scraper and the rolling roller are installed separately on the main frame and cannot be aligned with the terrain. (2) The leveling scraper is a single vertical plate structure with a bent lower end. Therefore, it can flatten the protrusions on the ground surface during the forward movement. However, this will also cause it to be subjected to the reaction force generated by the soil during the forward movement, which will easily cause it to deform over time. The angle and pressure cannot be adjusted as needed. Therefore, we propose a new type of land leveling device to solve the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a simple, economical, and practical land leveling device that can adjust the vertical movement of the entire four-bar linkage frame according to different land conditions, thereby driving the lower compaction and shaving components and the land leveling components to move up and down simultaneously to achieve land contouring. In addition, the angle and pressure of the shaving plate can be adjusted at any time as needed, making it more versatile. The device is simple in structure, economical, and practical, and can also adjust the angle and pressure of the shaving plate as needed.

[0006] This utility model discloses a land leveling device mounted on a four-bar linkage mechanism, mainly comprising two sets of four-bar linkage frames, and a soil compaction and leveling component connected below the four-bar linkage frames. Each set of four-bar linkage frames includes an arc-shaped connector, a pressure adjustment device, a crossbar I, a crossbar II, a vertical pole, and a crank arm. The arc-shaped connector, crossbar I, crossbar II, and vertical pole are hinged together to form a four-bar linkage structure. Crossbar I and crossbar II are arranged in parallel, with the same end of each crossbar I and crossbar II hinged to the arc-shaped connector. Crossbar I is hinged to the vertical pole via a crank arm. The upper end of the arc-shaped connector is hinged to the crank arm via the pressure adjustment device, and the other end of crossbar II is hinged to the vertical pole. The pressure adjustment device includes an adjusting screw, a pressure spring, and an adjusting nut. The lowest end of the vertical pole is connected to the soil compaction and leveling component, and the land leveling component is fixedly connected to the middle of the vertical pole.

[0007] Preferably, the leveling and sizing component is located at the rear of the four-bar linkage frame. Its structure includes a sizing plate and brackets connected to both sides of the sizing plate. One end of each bracket is hinged to the sizing plate and connected to an adjustment device I. The adjustment device I includes a support plate, an adjustment screw I, a pressure spring I, and an adjustment nut I. The pressure spring I is sleeved on the adjustment screw I. The lower end of the adjustment screw I is hinged to the sizing plate, and the upper end of the adjustment screw I passes through the support plate and is threadedly connected to the adjustment nut I. The leveling and sizing component is fixedly connected to the column via brackets.

[0008] The trowel is an arc-shaped plate with a higher front and lower back, featuring a bend. The support plate has through holes; one end is fixedly connected to the bracket, and the other end is connected to the adjusting screw I through the through holes.

[0009] Working principle of this utility model:

[0010] This utility model is a land leveling device mounted on a four-unit mechanism. In the prior art, the soil compaction and pulverization components and the land leveling components are usually installed separately on the frame. During operation, they cannot move up and down according to the terrain at the same time. This utility model installs the two together, which can achieve the purpose of the soil compaction and pulverization components moving up and down at the same time.

[0011] Its structure includes two sets of four-bar linkage frames. These frames are used to adjust the compaction and pulverization components and the leveling and sizing components connected below them, while also conforming vertically to the ground surface. Each set of four-bar linkage frames includes an arc-shaped connector, a pressure regulating device, horizontal bars I and II, a vertical pole, and a crank arm. The arc-shaped connector, horizontal bars I and II, and the vertical pole are hinged together to form a four-bar linkage structure. The pressure regulating device adjusts the vertical movement of the entire four-bar linkage frame, thereby causing the compaction and pulverization components and the leveling and sizing components below to move up and down simultaneously. This avoids the problem of asynchronous movement of the two components due to uneven terrain. For example, if the compaction and pulverization component rises by 10mm, the leveling and sizing component will rise by 10mm simultaneously. The pressure regulating device can apply downward pressure to the corresponding component.

[0012] The compaction and soil-breaking component can adopt a structure form existing in the technology to realize the operation of breaking up and compacting the soil.

[0013] The aforementioned land leveling and smoothing component applies pressure to the trowel plate during land leveling operations via adjustment device I, and simultaneously adjusts the angle of the trowel plate while applying pressure. It is suitable for land leveling operations in various terrain conditions, allowing for adjustment of the trowel plate's angle and pressure at any time to suit different soil conditions. The structure is simple and practical.

[0014] Compared with the prior art, the advantages of this utility model are: it is suitable for land preparation operations, and the upper and lower height of the entire four-bar linkage frame can be adjusted by a pressure adjustment device according to different land conditions, thereby driving the soil compaction and leveling components below to move up and down in the same direction; in addition, the downward pressure of the four-bar linkage frame, as well as the angle and pressure of the trowel, can be adjusted at any time as needed, making it more versatile, simple in structure, and economical and practical. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention in an embodiment.

[0016] Figure 2 This is a top view of the structure of the present invention in an embodiment.

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention in an embodiment.

[0018] Figure 4 This is a three-dimensional structural diagram of the leveling and smoothing component of this utility model.

[0019] In the diagram: 1 is crossbar II, 2 is an arc-shaped connector, 3 is a pressure regulating device, including adjusting screw 3-1, adjusting nut 3-2, and pressure spring 3-3; 4 is crossbar I; 5 is a crank arm; 6 is a vertical pole; 7 is a leveling and smearing component; 8 is a compaction and soil breaking component; 7-1 is a trowel; 7-2 is a hinge shaft I; 7-3 is a pressure spring I; 7-4 is an adjusting nut I; 7-5 is an adjusting screw I; 7-6 is a hinge shaft II; 7-7 is a support plate; and 7-8 is a bracket. Detailed Implementation

[0020] Referring to the accompanying drawings, which are structural schematic diagrams of an embodiment of the present invention, a land leveling device mounted on a four-bar linkage mainly includes two sets of four-bar linkage frames, and a compaction and breaking soil component 8 and a land leveling component 7 connected below the four-bar linkage frames; each set of the four-bar linkage frames includes an arc-shaped connector 2, a pressure adjusting device 3, a crossbar I 4, a crossbar II 1, a vertical pole 6, and a crank arm 5. The arc-shaped connector 2, the crossbar I 4, the crossbar II 1, and the vertical pole 6 are hinged together to form a four-bar linkage structure. The crossbar I 4 and the crossbar II 1 are horizontally connected... The horizontal bar I4 and horizontal bar II1 are respectively hinged to the arc-shaped connecting piece 2 on the same side. The horizontal bar I4 is hinged to the vertical post 6 through a crank arm. The upper end of the arc-shaped connecting piece 2 is hinged to the crank arm 2 through a pressure adjusting device 3. The other end of the horizontal bar II1 is hinged to the vertical post 6. The pressure adjusting device 3 includes an adjusting screw 3-1, a pressure spring 3-3, and an adjusting nut 3-2. The lowest end of the vertical post 6 is connected to the compaction and soil breaking component 8, and the land leveling component 7 is fixedly connected to the middle of the vertical post 6.

[0021] The leveling and sizing component 7 is located at the rear of the four-bar linkage frame. Its structure includes a sizing plate 7-1 and brackets 7-8 connected to both sides of the sizing plate 7-1. One end of each bracket 7-8 is hinged to the sizing plate 7-1 via a hinge shaft II 7-6 and is connected to an adjustment device I. The adjustment device I includes a support plate 7-7, an adjusting screw I 7-5, a pressure spring I 7-3, and an adjusting nut I 7-4. The pressure spring I 7-3 is sleeved on the adjusting screw I 7-5. The lower end of the adjusting screw I 7-5 is hinged to the sizing plate 7-1 via a hinge shaft I 7-2. The upper end of the adjusting screw I 7-5 passes through the support plate 7-7 and is threadedly connected to the adjusting nut I 7-4. The leveling and sizing component 7 is fixedly connected to the column 6 via the brackets 7-8.

[0022] The trowel 7-1 is an arc-shaped plate with a higher front and a lower back, and is bent.

[0023] The support plate 7-7 has a through hole, one end of which is fixedly connected to the bracket 7-8, and the other end is sleeved with the adjusting screw I 7-5 through the through hole.

[0024] This embodiment uses a four-bar linkage frame to adjust the compaction and pulverization component 8 and the leveling and sizing component 7 connected below the frame, while simultaneously conforming to the ground's contours vertically. In each four-bar linkage frame structure, the arc-shaped connector 2, crossbar I 4, crossbar II 1, and upright 6 are hinged together to form a four-bar structure. The pressure adjustment device 3 adjusts the overall height of the four-bar linkage frame, thereby causing the compaction and pulverization component 8 and the leveling and sizing component 7 to move up and down synchronously. This avoids the problem of asynchronous lifting and lowering of the two components due to uneven terrain. The pressure adjustment device 3 applies different downward pressures to the compaction and pulverization component 8 and the leveling and sizing component 7.

[0025] The compaction and soil-breaking component 8 can adopt a structure form in the prior art to realize the operation of breaking up and compacting the soil.

[0026] The aforementioned land leveling component 7 applies pressure to the trowel 7-1 via the adjusting device I during land leveling operations, and simultaneously adjusts the angle of the trowel 7-1 while applying pressure. It is suitable for land leveling operations in various terrain conditions, allowing for adjustment of the trowel's angle and pressure at any time to suit different soil conditions. The structure is simple and practical.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A ground leveling device mounted on a quadruple mechanism, characterized in that... It mainly includes two sets of four-bar linkage frames, and compaction and pulverization components and land leveling components connected below the four-bar linkage frames. Each set of four-bar linkage frames includes an arc-shaped connector, a pressure adjustment device, a crossbar I, a crossbar II, a vertical pole, and a crank arm. The arc-shaped connector, crossbar I, crossbar II, and vertical pole are hinged to each other to form a four-bar linkage structure. The crossbar I and crossbar II are arranged in parallel, and the same end of the crossbar I and crossbar II are respectively hinged to the arc-shaped connector. The crossbar I is hinged to the vertical pole through the crank arm. The upper end of the arc-shaped connector is hinged to the crank arm through the pressure adjustment device, and the other end of the crossbar II is hinged to the vertical pole. The pressure adjustment device includes an adjusting screw, a pressure spring, and an adjusting nut. The lowest end of the vertical pole is connected to the compaction and pulverization component, and the land leveling component is fixedly connected to the middle of the vertical pole.

2. The land leveling device mounted on the four-unit mechanism as described in claim 1, characterized in that... The leveling and sizing component is located at the rear of the four-bar linkage frame. Its structure includes a sizing plate and brackets connected to both sides of the sizing plate. One end of each bracket is hinged to the sizing plate and connected to an adjustment device I. The adjustment device I includes a support plate, an adjusting screw I, a pressure spring I, and an adjusting nut I. The pressure spring I is sleeved on the adjusting screw I. The lower end of the adjusting screw I is hinged to the sizing plate, and the upper end of the adjusting screw I passes through the support plate and is threadedly connected to the adjusting nut I. The leveling and sizing component is fixedly connected to the column via brackets.

3. The land preparation device as described in claim 2, characterized in that... The squeegee is an arc-shaped plate with a higher front and a lower back, and is bent.

4. The land preparation device as described in claim 2 or 3, characterized in that... The support plate has a through hole, one end of which is fixedly connected to the bracket, and the other end is sleeved with the adjusting screw I through the through hole.

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