Dual-wheel cultivator direction controller

Abstract

The utility model provides a double -wheel cultivator direction controller, including direction column, locating column, direction adjusting piece, torsional spring, adjusting screw rod and screw rod adjusting seat, locating column is installed in the hinged place near the draw bar lengthwise, torsional spring, direction adjusting piece are installed in locating column, torsional spring, adjusting screw rod respectively act on the opposite sides of direction adjusting piece tail end, and the side wall of direction adjusting piece front end acts on direction column, and direction adjusting piece applies the deviation correction force to direction column, adjusts the deviation correction force through adjusting screw rod, can make the cultivator machine head return to normal, reaches the automatic deviation correction effect. The double -wheel cultivator direction controller of the utility model can adjust the deflection in the running process of the cultivator, and makes the cultivator keep straight line walking.

Description

Technical Field

[0001] This utility model relates to the field of tillage machine technology, specifically a direction controller for a dual-wheel tillage machine. Background Technology

[0002] The two-wheel tillage machine is a small tillage machine widely used in paddy fields and dry land. It is characterized by its flexible operation and strong adaptability, and is often used in rice-growing areas for plowing, land preparation, and other operations. The tillage machine usually consists of an engine, transmission box, anti-slip wheels, handle frame, towing frame, towing device, towing bracket, towing rod, and implements. The towing rod is hinged to the towing bracket by a towing pin, and the towing rod drives the implements to achieve tillage operations.

[0003] In practical applications, it was found that soft plowed roads pose a greater resistance to the anti-slip wheels of the tiller, while firm unplowed roads pose a less resistance. Due to the different resistance of the anti-slip wheels on both sides, the tiller will deflect towards the plowed side with greater resistance when tilling the field. The operator needs to continuously push the handle to keep the tiller moving in a straight line, which is labor-intensive and can easily cause operator fatigue.

[0004] Meanwhile, because existing plowshares generally use right-hand plows, when the plow flips the soil clods to the upper right, the soil exerts a counterforce on the plow body, providing a lateral thrust to the left, causing the tiller to have a continuous tendency to move to the left. Therefore, dual-wheel tillers generally veer to the left during use, requiring manual pushing to turn them back and maintain straight-line movement.

[0005] Based on the above problems, it is necessary to propose a direction controller for dual-wheel tillers to adjust and control the deflection, thereby improving the performance of the tillers. Utility Model Content

[0006] This utility model provides a direction controller for a dual-wheel tiller, which can adjust the deflection of the tiller during its movement to keep the tiller moving in a straight line.

[0007] To achieve the above-mentioned technical objectives and effects, this utility model solves the above-mentioned problems through the following technical solution:

[0008] A dual-wheel tiller steering controller includes a steering column, a positioning column, a steering adjustment plate, a torsion spring, an adjusting screw, and a screw adjusting seat. The tiller's traction rod is hinged to the traction frame via a traction pin. The steering column is longitudinally mounted on the traction frame and located behind the traction pin. The positioning column is longitudinally mounted near the hinge point of the traction rod, and the torsion spring is sleeved on the positioning column. The center of the steering adjustment plate is rotatably mounted on the positioning column. The screw adjusting seat is mounted on the right side of the traction rod, and the adjusting screw is threadedly connected to the screw adjusting seat with its end acting on the tail side of the steering adjustment plate. One side of the torsion spring acts on the tail end of the steering adjustment plate, and the other side acts on the screw adjusting seat. The torsion spring and the adjusting screw act on opposite sides of the tail end of the steering adjustment plate, and the left front end of the steering adjustment plate is press-fitted with the steering column.

[0009] In this design, a torsion spring provides pressure to the steering column by rotating the steering adjustment plate. The adjusting screw and steering column work together to overcome the torque of the torsion spring. By adjusting the screw's rotation, the pressure on the steering column can be adjusted, thus controlling the amount of correction. The pressure applied by the steering adjustment plate causes the steering column to deflect to the right, using the tiller's anti-slip wheel as a fulcrum, achieving correction. The design allows for adjustment of the correction amount based on the tiller's deflection angle, thus controlling the tiller's direction.

[0010] Furthermore, the direction adjustment plate and the torsion spring are positioned vertically on the positioning post, and a pin hole is opened on the top of the positioning post and locked by a pin.

[0011] Furthermore, a support foot is provided at the rear end of the direction adjustment plate, and the support foot has a support foot limiting groove that cooperates with the torsion spring support foot.

[0012] Furthermore, the rotary end of the adjusting screw is equipped with a rotary handle.

[0013] The advantages and effects of this utility model are:

[0014] 1. This utility model can automatically correct the deviation of a tiller during operation, overcoming the problem of tiller deviation. When the tiller deviates, the direction adjusting plate applies a lateral thrust to the steering column, thereby adjusting the direction of the tiller head and controlling the direction of the dual-wheel tiller to keep it moving in a straight line. The solution allows adjustment of the force between the direction adjusting plate and the steering column by adjusting the screw, thus controlling the amount of deviation correction.

[0015] 2. This solution allows the drawbar to rotate the plowshare to one side of the tiller when it turns or makes a U-turn, preventing the plowshare from being in the soil-feeding or turning direction. This reduces steering resistance and ensures maneuverability. Furthermore, under the control of the dual-wheel tiller's direction controller, the drawbar returns the plowshare to its original position, automatically resuming its soil-feeding and turning state, further simplifying turning and U-turn operations. Attached Figure Description

[0016] Figure 1 This is an installation diagram of the present invention;

[0017] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the present invention in operation when the tiller is in motion;

[0019] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0020] Figure 5 This is a schematic diagram of a tiller in a turning position.

[0021] Part number markings: 1. Steering column, 2. Positioning column, 3. Steering adjustment plate, 4. Torsion spring, 5. Adjusting screw, 6. Screw adjustment seat, 7. Support leg, 8. Rotary handle, 9. Towing rod, 10. Towing pin, 11. Towing frame. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments, but the present invention is not limited to these embodiments.

[0023] The dual-wheel tiller direction controller described in this embodiment is as follows: Figure 1-4 As shown, the main body includes a steering column 1, a positioning column 2, a steering adjustment plate 3, a torsion spring 4, an adjusting screw 5, a screw adjustment seat 6, a support foot 7, and a rotating handle 8. In this embodiment, it is installed at the connection between the traction rod 9 and the traction frame 11 of the tillage machine. The traction rod 9 is hinged to the traction frame 11 via a traction pin 10.

[0024] The steering column 1 is longitudinally mounted on the upper part of the traction frame 11 and located behind the traction pin 10. In this embodiment, the upper part of the traction frame 11 is provided with a rearwardly extending steering column mounting plate. The steering column mounting plate has a longitudinal through hole for mounting the steering column 1. The steering column 1 uses a stepped bolt. The shoulder of the stepped bolt is limited to the wall of the through hole, and the end of the stepped bolt passes through the through hole and engages with a nut.

[0025] The positioning post 2 is longitudinally installed near the hinge of the traction rod 9. The middle part of the direction adjustment piece 3 is rotatably installed on the positioning post 2. The torsion spring 4 is sleeved on the positioning post 2. The direction adjustment piece 3 is located on the upper part of the torsion spring 4. A radial pin hole is opened at the top of the positioning post 2, and the direction adjustment piece 3 and the torsion spring 4 can be restricted from falling out by the pin.

[0026] A screw adjusting seat 6 is installed on the right side of the traction rod 9. An adjusting screw 5 is threaded onto the screw adjusting seat 6. When the adjusting screw 5 is screwed to the left, it acts on the tail side wall of the steering adjustment piece 3. Two feet of the torsion spring 4 act on the tail end of the steering adjustment piece 3 and the screw adjusting seat 6, respectively. The adjusting screw 5 and the torsion spring 4 act oppositely on both sides of the tail end of the steering adjustment piece 3. The torsion spring 4 provides a force for the steering adjustment piece 3 to rotate counterclockwise. The left front end of the steering adjustment piece 3 presses against the steering column 1. A foot seat 7 is provided at the tail end of the steering adjustment piece 3, and the foot seat 7 has a foot limiting groove that mates with the foot of the torsion spring 4. The adjusting screw 5 and the steering column 1 together overcome the torque of the torsion spring 4. When the adjusting screw 5 is screwed in, the force on the steering column 1 decreases; when the adjusting screw 5 is screwed out, the force on the steering column 1 increases.

[0027] When using the dual-wheel tiller direction controller described in this embodiment, if the tiller veers to the left, the adjusting screw 5 is turned out to increase the lateral pressure on the steering column 1, causing the tiller to veer to the right and maintain a straight-line state. If the tiller veers to the right, the adjusting screw 5 is turned in to decrease the lateral pressure on the steering column 1, reducing the amount of rightward veer of the tiller, so that the tiller returns to a straight-line state, as shown in the attached diagram. Figure 5 As shown.

[0028] Existing tillage machines, when turning or making a U-turn, have the plowshare entering the soil and remaining in a tilling state, severely affecting the flexibility of turning. Operators often need to lift the plow with one hand and control the handlebars with the other to change direction, a labor-intensive and extremely inconvenient operation. Using the tillage machine direction controller described in this embodiment, the plowshare can be rotated to one side of the tillage machine via the drawbar 9 during turns or U-turns, so that the plowshare is not in the direction of entering or tilling the soil, thus reducing the tillage machine's turning resistance and ensuring turning flexibility.

[0029] In this design, the steering column 1 is positioned within the rotation radius of the traction rod 9, and the steering column 1 restricts the leftward rotation of the directional adjustment piece 3. When turning or making a U-turn, the operator grips the steering handle on the traction rod 9, causing it to rotate to the left. During this rotation, the positioning column 2 drives the directional adjustment piece 3. The counterforce exerted by the steering column 1 on the directional adjustment piece 3 is significantly greater than the torque of the torsion spring 4, causing the directional adjustment piece 3 to rotate tangentially along the steering column 1, thus releasing the leftward rotation restriction on the traction rod 9. This allows the traction rod 9 to rotate with the plowshare to one side of the tiller, offset from the direction of travel, and not be in the soil-feeding or tilling state, reducing the tiller's steering resistance. (See attached diagram.) Figure 5 As shown.

[0030] Because of the dual-wheel tiller's steering controller, releasing the steering handle causes the drawbar 9 and steering adjustment plate 3 to gradually reset under the action of the torsion spring 4, allowing the plow to return to its soil-feeding and turning state. The operator can complete the tiller's turning and reversing operation during the torsion spring 4's reset process. During turning and reversing, the operator does not need to continuously grip the steering handle. The solution described in this embodiment simplifies the tiller's turning and reversing operation, further reducing manpower.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A directional controller for a dual-wheel tiller, characterized in that: Includes a steering column (1), a positioning column (2), a steering adjustment plate (3), a torsion spring (4), an adjustment screw (5), and a screw adjustment seat (6). The traction rod (9) of the tiller is hinged to the traction frame (11) via a traction pin (10). The steering column (1) is longitudinally installed on the traction frame (11) and located behind the traction pin (10); the positioning column (2) is longitudinally installed near the hinge of the traction rod (9), the torsion spring (4) is sleeved on the positioning column (2), and the center of the direction adjustment piece (3) is rotatably installed on the positioning column (2). The screw adjustment seat (6) is installed on the right side of the traction rod (9), and the adjustment screw (5) is threaded to the screw adjustment seat (6) and its end acts on the tail side of the direction adjustment plate (3); one side of the torsion spring (4) acts on the tail end of the direction adjustment plate (3), and the other side acts on the screw adjustment seat (6); the torsion spring (4) and the adjustment screw (5) act on opposite sides of the tail end of the direction adjustment plate (3), and the left front end of the direction adjustment plate (3) is pressed into the direction post (1).

2. The dual-wheel tiller direction controller according to claim 1, characterized in that: The direction adjustment plate (3) and the torsion spring (4) are positioned on the positioning post (2) and the top of the positioning post (2) has a pin hole and is locked by a pin.

3. The dual-wheel tiller direction controller according to claim 1, characterized in that: The direction adjustment plate (3) is provided with a support foot (7) at its tail end. The support foot (7) has a foot limiting groove that cooperates with the support foot of the torsion spring (4).

4. The dual-wheel tiller direction controller according to claim 1, characterized in that: The adjusting screw (5) is equipped with a rotary handle (8) at its rotary end.

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