Farmland grader

Abstract

The utility model relates to the technical field of land preparation equipment, in particular to a farmland land leveler which is characterized in that a land leveling wiper, a cylindrical land leveling roller and a prismatic land leveling roller are sequentially connected to the bottom of a vehicle body from the head end to the tail end, moving wheels are rotatably connected to the two ends of a connecting frame, and a first supporting frame is fixedly connected to the middle of the upper end of the connecting frame; a second supporting frame is fixedly connected to the vehicle body, a telescopic rod is rotationally connected to the second supporting frame, and the output end of the telescopic rod is rotationally connected with the first supporting frame. The leveling trowel, the cylindrical leveling roller and the prismatic leveling roller are sequentially arranged at the bottom of the vehicle body, leveling, pressing and shaping of farmland can be achieved at a time, equipment does not need to be replaced, and time and labor are saved; by rotationally connecting the moving wheels to the two ends of the connecting frame, rotationally connecting the bottom of the telescopic rod with the second supporting frame and rotationally connecting the output end with the first supporting frame, the height of the moving wheels can be adjusted, and the device is convenient to move and use.

Description

Technical Field

[0001] The utility model relates to the technical field of land preparation equipment, in particular to a farmland leveller. Background Technique

[0002] Before sowing in farmland, farmers usually need to carry out land preparation work on the farmland. Through land preparation, a good soil tillage structure and surface state can be created, soil fertility can be improved, and good conditions can be provided for sowing, crop growth and field management. Land preparation mainly includes operations such as ploughing, harrowing, levelling, ridging, etc. At present, when farmers carry out levelling, they usually use two devices, namely a levelling blade and a levelling roller. Generally, a tractor is used to connect one of the devices for operation first, and then the device behind the tractor is replaced with the other for operation. This process of replacing the device is mainly manually operated, which is time-consuming and laborious, affecting work efficiency. And when the device is transferred, it basically needs to be manually carried onto the tractor, which is quite laborious. Therefore, it is necessary to develop a farmland leveller that does not require device replacement and is time-saving and labor-saving in the use process. Content of the Utility Model

[0003] In view of the above technical problems, the utility model provides a farmland leveller that does not require device replacement and is time-saving and labor-saving in the use process, so as to solve the problem of time-consuming and laborious device replacement during current levelling.

[0004] To solve the above technical problems, a farmland leveller of the utility model includes a vehicle body. A towing frame is connected to the front end of the vehicle body. A levelling blade, a cylindrical levelling roller, and a prismatic levelling roller are sequentially connected to the bottom of the vehicle body from the front end to the tail end. A connecting frame is rotatably connected to the bottom of the vehicle body. The connecting frame is of a "C" shape structure. Moving wheels are rotatably connected to both ends of the connecting frame. A first support frame is fixedly connected to the middle of the upper end of the connecting frame. A second support frame is fixedly connected to the vehicle body. A telescopic rod is rotatably connected to the second support frame. The output end of the telescopic rod is rotatably connected to the first support frame.

[0005] Further, a plurality of mounting frames are fixedly connected to the bottom of the vehicle body, and a telescopic elastic mechanism matching with the mounting frames is rotatably connected. The two sides of the front end of the levelling blade are rotatably connected to the lower ends of the mounting frames, and the two sides of the rear end are rotatably connected to the telescopic elastic mechanism.

[0006] Further, the lower end of the mounting frame is rotatably connected to one end of a fixing plate. The other end of the fixing plate is rotatably connected to the telescopic elastic mechanism. A bearing seat is fixedly connected to the lower end of the fixing plate. Both ends of the cylindrical levelling roller and the prismatic levelling roller are rotatably connected to the bearing seat through roller shafts.

[0007] Furthermore, the telescopic rebound mechanism includes a guide rod, a guide sleeve, and a high-strength spring. The lower end of the guide rod is slidably engaged within the guide sleeve, and the high-strength spring is sleeved on the outside of the guide rod and the guide sleeve. One end of the high-strength spring is fixedly connected to the end of the guide rod, and the other end is fixedly connected to the end of the guide sleeve.

[0008] Furthermore, there are two cylindrical flat rollers and two prismatic flat rollers. The two cylindrical flat rollers are arranged alternately, and the inner sides of the two cylindrical flat rollers extend to the middle of the vehicle body. The two prismatic flat rollers are arranged alternately, and the inner sides of the two prismatic flat rollers extend to the middle of the vehicle body.

[0009] Furthermore, a connecting seat is fixedly connected to the bottom of the vehicle body, and the connecting frame passes through the connecting seat and is rotatably connected to it.

[0010] Furthermore, the telescopic rod is made of one of a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder.

[0011] This utility model has the following advantages compared with the prior art:

[0012] 1. This utility model, by sequentially assembling a leveling trowel, a cylindrical leveling roller, and a prismatic leveling roller at the bottom of the vehicle body, can achieve leveling, compaction, and shaping of farmland in one operation without the need for equipment replacement, saving time and labor. By rotating the connecting frame at the bottom of the vehicle body and rotatably connecting the movable wheels at both ends of the connecting frame, fixing the first support frame at the upper end of the connecting frame, and fixing the second support frame at the top of the vehicle body, and rotatably connecting the bottom of the telescopic rod to the second support frame and the output end to the first support frame, the height of the movable wheels can be adjusted. When the leveler is in operation, the movable wheels are lifted off the ground to ensure a leveling effect. When moving the machine during non-operational periods, the movable wheels are brought into contact with the ground, ensuring that the leveling trowel, cylindrical leveling roller, and prismatic leveling roller are lifted off the ground, facilitating the movement and use of the device.

[0013] 2. This utility model connects the leveling trowel, cylindrical leveling roller, and prismatic leveling roller using a mounting frame and telescopic rebound mechanism, which ensures smooth operation of the device and avoids the problem of the leveling trowel, cylindrical leveling roller, and prismatic leveling roller getting stuck when encountering large clods of soil.

[0014] 3. This utility model provides two cylindrical leveling rollers and two prismatic leveling rollers, which are staggered. This allows the cylindrical and prismatic leveling rollers on both sides to operate independently, making them better adaptable to the undulations of the ground, enhancing adaptability, ensuring better leveling results, reducing rework, and improving leveling efficiency and effectiveness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 is the top view of Figure 1 .

[0017] Figure 3 is Figure 1 the partial enlarged view of area A in

[0018] In the figure: 1, vehicle body; 2, towing frame; 3, connecting seat; 4, connecting frame; 5, moving wheel; 6, first support seat; 7, telescopic rod; 8, second support seat; 9, flatting blade; 10, cylindrical flatting roller; 11, prismatic flatting roller; 12, mounting frame; 13, fixing plate; 14, bearing seat; 15, guide sleeve; 16, guide rod; 17, high-strength spring. Specific embodiments

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] As Figure 1-3 shown, a farmland land leveler includes a vehicle body 1. A towing frame 2 is connected to the front end of the vehicle body 1. The towing frame 2 is used to connect to the rear end of a tractor. During the use of the equipment, it is driven by the tractor. A flatting blade 9, a cylindrical flatting roller 10, and a prismatic flatting roller 11 are sequentially connected to the bottom of the vehicle body 1 from the front end to the rear end. A connecting frame 4 is rotatably connected to the bottom of the vehicle body 1. The connecting frame 4 has a "C" - shaped structure. Both ends of the connecting frame 4 are rotatably connected to a moving wheel 5 through bearings. The vehicle body 1 has a frame structure. The moving wheel 5 can pass through the vehicle body 1. The middle of the upper end of the connecting frame 4 is fixedly connected to a first support frame 6. A second support frame 8 is fixedly connected to the vehicle body 1. A telescopic rod 7 is rotatably connected to the second support frame 8. The output end of the telescopic rod 7 is rotatably connected to the first support frame 6. It should be noted that in this embodiment, through holes are provided at the bottom of the telescopic rod 7 and on the second support frame 8, and a pin shaft passes through the through holes to rotatably connect them; through holes are provided at the output end of the telescopic rod 7 and on the first support frame 6, and a pin shaft passes through the through holes to rotatably connect them; a safety pin is provided through one end of the pin shaft.

[0021] The working process of this embodiment is as follows: When using a grader, the traction frame 2 is used to connect it to the tractor. When the grader moves, the telescopic rod 7 is extended, the first support frame 6 drives the connecting frame 4 to rotate, thereby making the moving wheel 5 contact the ground, and stabilizing the length of the telescopic rod 7 after the grader 9, cylindrical grader roller 10, and prismatic grader roller 11 leave the ground. After starting the tractor and moving the grader to the farmland, the telescopic rod 7 is retracted, making the moving wheel 5 leave the ground, and making the grader 9, cylindrical grader roller 10, and prismatic grader roller 11 contact the ground. The tractor drives the grader to move and grade the farmland. During the grading process, the grader 9, cylindrical grader roller 10, and prismatic grader roller 11 work on the farmland in sequence. The grader 9 first flattens the farmland, the cylindrical grader roller 10 rotates to flatten the surface of the farmland, and the prismatic grader roller 11 rotates to flatten the deeper parts of the farmland a second time.

[0022] In order to provide space for the leveling squeegee 9 to vibrate up and down and to avoid excessive soil accumulation during the operation of the leveling squeegee 9, causing damage, several mounting brackets 12 are fixedly connected to the bottom of the vehicle body 1. A telescopic rebound mechanism matching the mounting brackets 12 is rotatably connected to the mounting brackets 12 via pins. The front two sides of the leveling squeegee 9 are rotatably connected to the lower end of the mounting brackets 12 via pins, and the rear two sides are rotatably connected to the telescopic rebound mechanism via pins.

[0023] The working process of this embodiment is as follows: During the movement of the grader, the grader 9 smooths the farmland. During this process, the grader 9 can vibrate under the action of the telescopic rebound mechanism to avoid damage to the equipment.

[0024] To facilitate the rotational installation of the cylindrical leveling roller 10 and the prismatic leveling roller 11, and to ensure their stable operation, the rollers are designed to vibrate and avoid encountering uncrushable soil clods, preventing large soil clods from getting stuck in front of them and preventing them from rotating. The lower end of the mounting frame 12 is rotatably connected to the bracket at one end of the fixing plate 13 via a pin. The other end of the fixing plate 13 is rotatably connected to the telescopic rebound mechanism via a bearing. The lower end of the fixing plate 13 is fixedly connected to the bearing seat 14 via bolts. Both ends of the cylindrical leveling roller 10 and the prismatic leveling roller 11 are rotatably connected to the bearing seat 14 via roller shafts and bearings.

[0025] The working process of this embodiment is as follows: During the use of the grader, the cylindrical grader roller 10 and the prismatic grader roller 11 rotate in sequence to flatten the farmland. During the flattening process, under the action of the telescopic rebound mechanism, the cylindrical grader roller 10 and the prismatic grader roller 11 can vibrate to avoid the accumulation of soil clods.

[0026] To ensure a good leveling effect while guaranteeing the smooth and safe operation of the equipment, the telescopic rebound mechanism includes a guide rod 16, a guide sleeve 15, and a high-strength spring 17. The lower end of the guide rod 16 is slidably engaged inside the guide sleeve 15, and the high-strength spring 17 is sleeved on the outside of the guide rod 16 and the guide sleeve 15. One end of the high-strength spring 17 is fixedly connected to the upper end of the guide rod 16, and the other end is fixedly connected to the lower end of the guide sleeve 15.

[0027] The working process of this embodiment is as follows: When the telescopic rebound mechanism is running, the guide rod 16 slides into the guide sleeve 15. At this time, the high-strength spring 17 is compressed. Under the rebound action of the high-strength spring 17, the guide rod 16 is driven to reset.

[0028] To better adapt to uneven ground, enhance adaptability, ensure better leveling results, and reduce rework, two cylindrical leveling rollers 10 and two prismatic leveling rollers 11 are provided. The two cylindrical leveling rollers 10 are arranged alternately, with the inner sides of both cylindrical leveling rollers 10 extending to the middle of the vehicle body. The two prismatic leveling rollers 11 are arranged alternately, with the inner sides of both prismatic leveling rollers 11 extending to the middle of the vehicle body. The pressing tracks at one end of the inner sides of the two cylindrical leveling rollers 10 and prismatic leveling rollers 11 overlap.

[0029] The working process of this embodiment is as follows: During the process of two cylindrical leveling rollers 10 and two prismatic leveling rollers 11 rotating to flatten the farmland, their individual operation can increase the adaptability of the ground.

[0030] To facilitate the rotational connection of the connecting frame 4, a connecting seat 3 is fixedly connected to the bottom of the vehicle body 1, and the connecting frame 4 passes through the connecting seat 3 and is rotatably connected to it through a bearing.

[0031] To ensure equipment stability, the telescopic boom 7 is constructed using a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder. It should be noted that in this embodiment, a hydraulic cylinder is used for the telescopic boom 7, and hydraulic lines are used to connect the telescopic boom 7 to the tractor's hydraulic system.

[0032] The working principle of this embodiment is as follows:

[0033] The leveling screed 9, cylindrical leveling roller 10, and prismatic leveling roller 11 are sequentially mounted on the vehicle body 1. The vehicle body 1 is moved by a tractor, which can level and compact the farmland in one go. The moving wheels 5 facilitate the movement of the entire device, and with the cooperation of the telescopic rod 7, the moving wheels 5 can be lifted off the ground during the operation of the device.

Claims

1. An agricultural field leveler comprising a vehicle body (1), a towing frame (2) connected to the front end of the vehicle body (1), characterized in that: At the bottom of the vehicle body (1), a flat land smoother (9), a cylindrical flat land roller (10), and a prismatic flat land roller (11) are sequentially connected from the head end to the tail end. A connecting frame (4) is rotatably connected to the bottom of the vehicle body (1). The connecting frame (4) has a "C" - shaped structure. Moving wheels (5) are rotatably connected to both ends of the connecting frame (4). A first support frame (6) is fixedly connected to the middle of the upper end of the connecting frame (4). A second support frame (8) is fixedly connected to the vehicle body (1). A telescopic rod (7) is rotatably connected to the second support frame (8), and the output end of the telescopic rod (7) is rotatably connected to the first support frame (6).

2. The farm field smoother of claim 1, wherein: A number of mounting frames (12) are fixedly connected to the bottom of the vehicle body (1), and a telescopic and resilient mechanism matching the mounting frames (12) is rotatably connected. The two sides of the front end of the flat land smoother (9) are rotatably connected to the lower ends of the mounting frames (12), and the two sides of the rear end are rotatably connected to the telescopic and resilient mechanism.

3. The farm field smoother of claim 2, wherein: The lower end of the mounting frame (12) is rotatably connected to one end of a fixing plate (13), and the other end of the fixing plate (13) is rotatably connected to the telescopic and resilient mechanism. A bearing seat (14) is fixedly connected to the lower end of the fixing plate (13). Both ends of the cylindrical flat land roller (10) and the prismatic flat land roller (11) are rotatably connected to the bearing seat (14) through roller shafts.

4. The farm field smoother according to claim 2 or 3, characterized in that: The telescopic and resilient mechanism includes a guide rod (16), a guide sleeve (15), and a high - strength spring (17). The lower end of the guide rod (16) is slidably clamped inside the guide sleeve (15). The high - strength spring (17) is sleeved outside the guide rod (16) and the guide sleeve (15). One end of the high - strength spring (17) is fixedly connected to the end of the guide rod (16), and the other end is fixedly connected to the end of the guide sleeve (15).

5. The farm field smoother of claim 3 wherein: There are two cylindrical flat land rollers (10) and two prismatic flat land rollers (11). The two cylindrical flat land rollers (10) are arranged staggeredly in sequence. The inner sides of the two cylindrical flat land rollers (10) both extend to the middle of the vehicle body. The two prismatic flat land rollers (11) are arranged staggeredly in sequence. The inner sides of the two prismatic flat land rollers (11) both extend to the middle of the vehicle body (1).

6. The farm field smoother of claim 1 wherein: A connecting seat (3) is fixedly connected to the bottom of the vehicle body (1). The connecting frame (4) penetrates through the connecting seat (3) and is rotatably connected to it.

7. The farmland grader according to claim 1, characterized in that: The telescopic rod (7) is one of a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder.

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