Tractor for crop harvesting

Abstract

The utility model relates to the technical field of tractors, in particular to a tractor for crop harvesting, which comprises a tractor body, a T-shaped plate is slidably mounted on the front portion of the tractor body, two first guide rods and a first air cylinder are parallelly mounted on the T-shaped plate, a lifting plate is connected to the movable end of a piston rod of the first air cylinder, and the first guide rods slidably penetrate through the lifting plate. First motors are symmetrically installed at the two ends of the lifting plate, output shafts of the first motors are connected with rotating rods, the rotating rods penetrate through the T-shaped plate in a sliding mode, nylon ropes are symmetrically connected to the rotating rods, one ends of the nylon ropes are movably arranged on the outer walls of the rotating rods, and the other ends of the nylon ropes movably penetrate through inner cavities of the rotating rods and stretch out of the bottom ends of the rotating rods. The height of the lifting plate is adjusted through stretching of a piston rod of the first air cylinder, then the height of the rotating rod and the height of the nylon rope are adjusted, the cutting height of the nylon rope is adjusted so as to adapt to forage grass of different heights, and the forage grass of different heights can be effectively harvested.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to a tractor used for crop harvesting. Background Technology

[0002] Crops are a general term for agricultural crops, which refer to various plants cultivated in agriculture. They include two main categories: food crops and cash crops (oilseed crops, vegetable crops, flowers, grasses, and trees). Forage grass, as a special type of crop, is mainly used to feed livestock and provide them with fodder.

[0003] In modern agricultural production, forage harvesting is an important and arduous task. Traditional forage harvesting methods mainly rely on manual mowing or simple mechanical mowers. Manual mowing is time-consuming, labor-intensive, and inefficient. While traditional mechanical mowers can improve efficiency, their fixed mowing heads make them unsuitable for harvesting forage in complex terrains and at different heights, often resulting in missed cuts or incomplete cuts. Although existing mowers have adjustable cutting heights, they lack flexibility in adjusting the cutting height and harvesting range, making it difficult to adapt to forage of different heights and densities.

[0004] Therefore, it is necessary to design a tractor for crop harvesting that can easily adjust the height of its mower head according to the height of the grass, so as to adapt to grass of different heights. Utility Model Content

[0005] The technical solution of this utility model is as follows: a tractor for crop harvesting includes a tractor body, a T-shaped plate slidably mounted on the front of the tractor body, two guide rods and a cylinder mounted side by side on the T-shaped plate, the two guide rods symmetrically mounted on the T-shaped plate with the cylinder as the center, the movable end of the piston rod of the cylinder being connected to a lifting plate, the guide rod sliding through the lifting plate, a motor symmetrically mounted on both ends of the lifting plate, the output shaft of the motor being connected to a rotating rod, the rotating rod sliding through the T-shaped plate, nylon ropes symmetrically connected to the rotating rod, one end of the nylon rope being movably mounted on the outer wall of the rotating rod, the other end being movably mounted through the inner cavity of the rotating rod and extending out from the bottom end of the rotating rod, the motor driving the rotating rod to rotate and driving the nylon rope to rotate at high speed to harvest the forage.

[0006] As a preferred technical solution of this utility model, a second cylinder is installed on the tractor body, and a connecting plate is installed on the movable end of the piston rod of the second cylinder. The connecting plate is fixedly connected to the T-shaped plate, and the second cylinder drives the connecting plate to move horizontally, thereby driving the T-shaped plate to move back and forth.

[0007] As a preferred technical solution of this utility model, a threaded sleeve is rotatably installed on the upper outer wall of the rotating rod, and a lifting block is threadedly connected to the threaded sleeve. The end of the nylon rope located on the outer side of the rotating rod is fixedly connected to the lifting block.

[0008] As a preferred technical solution of this utility model, an installation plate is installed on the lower part of the rotating rod. The installation plate is located below the threaded sleeve and above the T-shaped plate. A second motor is installed on the installation plate. A drive gear is connected to the output shaft of the second motor. The drive gear meshes with the driven gear installed at the lower part of the threaded sleeve. The second motor drives the threaded sleeve to rotate by driving the drive gear and the driven gear to rotate.

[0009] As a preferred technical solution of this utility model, the mounting plate is provided with a guide rod 2 to guide the lifting movement of the lifting block, and the guide rod 2 slides through the lifting block.

[0010] As a preferred technical solution of this utility model, the length of the nylon rope used for cutting hay increases as the height of the lifting block increases.

[0011] Beneficial effects: 1. By extending and retracting the piston rod of the cylinder, the height of the lifting plate is adjusted, which in turn adjusts the height of the rotating rod and the nylon rope, thereby adjusting the cutting height of the nylon rope to adapt to grass of different heights, enabling effective harvesting of grass of different heights and avoiding missed or incomplete cutting.

[0012] 2. The connecting plate is driven horizontally by cylinder two, which in turn moves the T-shaped plate back and forth to adjust the harvesting range and adapt to pasture areas of different widths. The drive gear and driven gear are driven to rotate by motor two, which in turn drives the threaded sleeve to rotate, which in turn causes the lifting block to slide up and down along guide rod two, thereby adjusting the length of the nylon rope used for cutting pasture, thus achieving the effect of harvesting pasture over a large area.

[0013] 3. Through the coordinated work of cylinder one, cylinder two, motor one, and motor two, the cutting height, harvesting range, and nylon rope length can be automatically adjusted, reducing manual intervention and improving the convenience of operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the motor, rotating rod, nylon rope, threaded sleeve, and lifting block of this utility model.

[0017] Figure 4 This is a partial three-dimensional structural diagram of the components of the present invention, including the motor, the driving gear, the driven gear, and the threaded sleeve.

[0018] The components are: 1-Tractor body, 2-T-shaped plate, 21-Guide rod one, 3-Lifting plate, 4-Motor one, 5-Rotating rod, 6-Nylon rope, 7-Cylinder one, 8-Cylinder two, 9-Connecting plate, 10-Threaded sleeve, 11-Lifting block, 12-Guide rod two, 13-Motor two, 131-Mounting plate, 14-Driving gear, 15-Driven gear. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] Example: A tractor used for crop harvesting, such as Figure 1 and Figure 2 As shown, the system includes a tractor body 1, a T-shaped plate 2, guide rods 21, a lifting plate 3, a motor 4, a rotating rod 5, a nylon rope 6, and a cylinder 7. The tractor body 1 uses a high-performance diesel engine to provide ample power and is equipped with a four-wheel drive system to ensure stability and passability under various terrain conditions. A T-shaped plate 2 is slidably mounted on the front of the tractor body 1. Two guide rods 21 and a cylinder 7 are mounted side-by-side on the T-shaped plate 2. The two guide rods 21 are symmetrically mounted on the T-shaped plate 2 with the cylinder 7 as the center. The movable end of the piston rod of the cylinder 7 is connected to the lifting plate 3. The guide rods 21 slide through the lifting plate 3. The upward extension of the piston rod of the cylinder 7 drives the lifting plate 3 to move upward along the guide rods 21. Motors 4 are symmetrically mounted on both ends of the lifting plate 3. The output shaft of the motor 4 is connected to a rotating rod 5, which slides through a T-shaped plate 2. The T-shaped plate 2 has a through hole for the rotating rod 5 to slide through. The diameter of the through hole is larger than the diameter of the rotating rod 5. This design facilitates the automatic rotation and lifting of the rotating rod 5 within the through hole. Nylon ropes 6 are symmetrically connected to the rotating rod 5. The upper end of the nylon rope 6 is movably mounted on the outer wall of the rotating rod 5, and the lower end moves through the inner cavity of the rotating rod 5 and extends out from the bottom of the rotating rod 5. The part of the nylon rope 6 extending from the lower part of the rotating rod 5 is used to cut the hay. The motor 4 drives the rotating rod 5 to rotate and drives the nylon rope 6 to rotate at high speed to harvest the hay. The extension and retraction of the piston rod of the cylinder 7 drives the lifting plate 3 and the rotating rod 5 to move up and down, thereby adjusting the height of the lower cutting end of the nylon rope 6, thus enabling the cutting of hay at different heights.

[0021] like Figure 2 As shown, a cylinder 8 is installed on the tractor body 1. A connecting plate 9 is installed on the movable end of the piston rod of the cylinder 8. The connecting plate 9 is fixedly connected to the T-shaped plate 2. The cylinder 8 drives the connecting plate 9 to move horizontally, thereby driving the T-shaped plate 2 to move back and forth. The cutting range is adjusted by driving the T-shaped plate 2 to move horizontally.

[0022] like Figure 3As shown, a threaded sleeve 10 is rotatably installed on the upper outer wall of the rotating rod 5. A lifting block 11 is threadedly connected to the threaded sleeve 10. The end of the nylon rope 6 located on the outside of the rotating rod 5 is fixedly connected to the lifting block 11. The length of the nylon rope 6 used for cutting grass increases as the height of the lifting block 11 increases. The height of the lifting block 11 can be adjusted by rotating the threaded sleeve 10. When the lifting block 11 rises, the upper end of the nylon rope 6 moves upward, and the lower section of the nylon rope 6 is extended accordingly, thereby expanding the harvesting area of ​​the nylon rope 6 for grass and thus realizing the function of large-scale harvesting of grass.

[0023] like Figure 4 As shown, a mounting plate 131 is installed on the lower part of the rotating rod 5. The mounting plate 131 is located below the threaded sleeve 10 and above the T-shaped plate 2. A second motor 13 is mounted on the mounting plate 131. A drive gear 14 is connected to the output shaft of the second motor 13. The drive gear 14 meshes with a driven gear 15 installed at the lower part of the threaded sleeve 10. The second motor 13 drives the threaded sleeve 10 to rotate by driving the drive gear 14 and the driven gear 15. The second motor 13 serves as the power source for driving the rotation of the threaded sleeve 10. The drive gear 14 and the driven gear 15 transmit the power of the second motor 13 to the threaded sleeve. At cylinder 10, the radius of the driving gear 14 is smaller than that of the driven gear 15, thus avoiding excessive rotation speed of the threaded sleeve 10, which would lead to a deterioration in the adjustment effect of the lifting block 11. The deceleration motion can achieve precise adjustment of the lifting block 11. Since the contact area between the driving gear 14 and the driven gear 15 is large, the friction loss is relatively small, so the transmission efficiency is high. The meshing transmission of the driving gear 14 and the driven gear 15 can provide a very precise and constant transmission ratio, thus allowing precise control of the lifting speed and lifting height of the lifting block 11, thereby achieving precise adjustment of the length of the grass cutting section of the nylon rope 6.

[0024] like Figure 4 As shown, the mounting plate 131 is provided with a guide rod 12 to guide the lifting movement of the lifting block 11. The guide rod 12 slides through the lifting block 11 to guide the lifting movement of the lifting block 11, ensuring that the lifting block 11 moves smoothly and avoiding jamming and deflection.

[0025] When using this tractor to harvest hay, first move the tractor body 1 to the area where the hay needs to be harvested. Then, control the piston rod of cylinder 7 to extend or retract according to the height of the hay, thereby adjusting the height of the lifting plate 3. When the lifting plate 3 rises or falls, it drives the rotating rod 5 and the nylon rope 6 set on the rotating rod 5 to rise or fall synchronously, thereby adjusting the cutting height of the nylon rope 6 to accommodate hay of different heights. Then, the rotating rod 5 is driven to rotate at high speed by motor 4, thereby driving the nylon rope 6 to rotate at high speed, thus cutting the hay and achieving the effect of effectively harvesting hay of different heights. When it is necessary to adjust the harvesting range, control the piston rod of cylinder 8 to extend or retract. The drive connecting plate 9 moves horizontally, thereby driving the T-shaped plate 2 to move back and forth, thus adjusting the harvesting range. Then, by controlling the motor 13, the drive gear 14 and driven gear 15 rotate, thereby driving the threaded sleeve 10 to rotate, causing the lifting block 11 to slide up and down along the guide rod 12. When the lifting block 11 moves up along the guide rod 12, as the lifting block 11 moves up, the length of the nylon rope 6 located on the outer side of the upper part of the rotating rod 5 becomes shorter, while the length of the nylon rope 6 entering the inner side of the rotating rod 5 becomes longer. This realizes the adjustment of the cutting length of the nylon rope 6, thereby realizing the function of large-scale harvesting of pasture.

[0026] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A tractor for crop harvesting, comprising a tractor body (1), characterized in that: A T-shaped plate (2) is slidably mounted on the front of the tractor body (1). Two guide rods (21) and a cylinder (7) are mounted side by side on the T-shaped plate (2). The movable end of the piston rod of the cylinder (7) is connected to a lifting plate (3). The guide rod (21) slides through the lifting plate (3). Motors (4) are symmetrically mounted on both ends of the lifting plate (3). The output shaft of the motor (4) is connected to a rotating rod (5). The rotating rod (5) slides through the T-shaped plate (2). Nylon ropes (6) are symmetrically connected on the rotating rod (5). One end of the nylon rope (6) is movably set on the outer wall of the rotating rod (5), and the other end moves through the inner cavity of the rotating rod (5) and extends out from the bottom end of the rotating rod (5). The motor (4) drives the rotating rod (5) to rotate and drives the nylon rope (6) to rotate at high speed to harvest the forage.

2. The tractor for crop harvesting as described in claim 1, characterized in that: A cylinder 2 (8) is installed on the tractor body (1). A connecting plate (9) is installed on the movable end of the piston rod of the cylinder 2 (8). The connecting plate (9) is fixedly connected to the T-shaped plate (2). The cylinder 2 (8) drives the connecting plate (9) to move horizontally, thereby driving the T-shaped plate (2) to move back and forth.

3. A tractor for crop harvesting as described in claim 2, characterized in that: A threaded sleeve (10) is rotatably installed on the upper outer wall of the rotating rod (5). A lifting block (11) is threadedly connected to the threaded sleeve (10). The end of the nylon rope (6) located on the outside of the rotating rod (5) is fixedly connected to the lifting block (11).

4. A tractor for crop harvesting as described in claim 3, characterized in that: A mounting plate (131) is installed on the lower part of the rotating rod (5). The mounting plate (131) is located below the threaded sleeve (10) and above the T-shaped plate (2). A second motor (13) is installed on the mounting plate (131). A drive gear (14) is connected to the output shaft of the second motor (13). The drive gear (14) meshes with the driven gear (15) installed on the lower part of the threaded sleeve (10). The second motor (13) drives the threaded sleeve (10) to rotate by driving the drive gear (14) and the driven gear (15) to rotate.

5. A tractor for crop harvesting as described in claim 4, characterized in that: The mounting plate (131) is provided with a guide rod (12) that provides guidance for the lifting movement of the lifting block (11), and the guide rod (12) slides through the lifting block (11).

6. A tractor for crop harvesting as described in claim 5, characterized in that: The length of the nylon rope (6) used for cutting hay increases as the height of the lifting block (11) increases.

Images