Tail-hung trowelling device of rotary cultivator

Abstract

The utility model discloses a rotary tillage machine tail hanging trowelling device which comprises two supporting frames, flange plates are fixedly connected to the front ends of the two supporting frames respectively, supporting rods are fixedly connected to the middles of the opposite sides of the two supporting frames, damping structures are arranged at the two ends of each supporting rod respectively, and a rotating shaft is arranged between the two damping structures. The outer wall of the rotating shaft is sleeved with a plurality of equidistant auxiliary wheels, the adjacent edges of the auxiliary wheels are fixedly connected with a plurality of equidistant rolling rods, the tops of the rear sides of the two supporting frames are fixedly connected with a fixing plate, a lifting structure is arranged at the bottom of the fixing plate, and a troweling plate is arranged at the bottom end of the lifting structure. The leveling device has the advantages that the auxiliary wheel is arranged in the leveling device, safety is improved, meanwhile, the rolling rod is arranged on the auxiliary wheel, soil blocks which are obtained through rotary tillage and are not completely crushed can be further ground, loss of large soil blocks to the leveling device is reduced, and the leveling device is convenient to use due to the fact that the lifting structure is arranged at the top end of the leveling plate. Therefore, the trowelling plate hinged to the bottom can ascend or descend, and different terrains and farming requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically a rotary tiller tail-mounted smoothing device. Background Art

[0002] With the vigorous promotion of straw return to the field and agricultural machinery in my country, rotary tillers are usually used for rotary tillage first. However, rotary tillage will make the field uneven. Therefore, after rotary tillage, it is necessary to use other devices to level the field and harrow it. This is inconvenient and inefficient. As a result, the rotary tiller tail-mounted leveling device has emerged.

[0003] A rotary tiller tail-mounted leveling device, disclosed in CN220087873U, includes a machine body and a support frame. The lower surface of the support frame is equipped with a leveling mechanism for convenient adjustment of the leveling length, and the left side of the machine body is equipped with a disassembly and assembly mechanism for convenient disassembly and maintenance. This rotary tiller tail-mounted leveling device, through the coordination of a fixed leveling plate, an adjusting frame, a rotating shaft, an adjusting leveling plate, and a first hydraulic cylinder, allows for leveling after rotary tilling. After leveling, the output shaft of the first hydraulic cylinder extends and retracts, pushing the adjusting leveling plate to rotate along the rotating shaft within the adjusting frame until the adjusting leveling plate is horizontally aligned with the fixed leveling plate. This adjustment increases the leveling length and improves leveling efficiency. After leveling, the output shaft of the first hydraulic cylinder retracts, causing the adjusting leveling plate to rotate along the rotating shaft until it is perpendicular to both sides of the fixed leveling plate, thus reducing its length for transport. However, existing leveling devices have the following drawbacks in use:

[0004] (1) The existing leveling device is mounted on the rear end of the rotary tiller by a support frame. Due to the weight and position of the leveling device, it may have an adverse effect on the balance of the rotary tiller. Especially during the tillage process, this imbalance may cause the rotary tiller to be unstable in operation, thereby affecting the quality and depth of tillage, increasing the risk of operation, and affecting the safety of the operator.

[0005] (2) The existing leveling device lacks a lifting structure. Since it cannot adjust the height of the leveling device according to the undulation of the terrain, it may not be effective when operating on complex or uneven land, and it cannot meet the diverse agricultural farming needs, affecting the quality of land leveling and potentially increasing wear and tear on the equipment. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a rotary tiller tail-mounted smoothing device.

[0007] To solve the above problems, the technical solution of this utility model is as follows: it includes two support frames, with flange plates fixedly connected to the front ends of the two support frames respectively, and support rods fixedly connected to the middle of opposite sides of the two support frames. Each end of the support rod is provided with a shock-absorbing structure, and a rotating shaft is provided between the two shock-absorbing structures. A plurality of equidistant auxiliary wheels are sleeved on the outer wall of the rotating shaft, and a plurality of equidistant rolling rods are fixedly connected to the edges of the adjacent auxiliary wheels. A fixing plate is fixedly connected to the top of the rear side of the two support frames, and a lifting structure is provided at the bottom of the fixing plate. A smoothing plate is provided at the bottom end of the lifting structure.

[0008] Furthermore, the lifting structure includes a motor, a threaded rod, a movable seat, and a connecting rod. The motor is fixedly connected to both ends of the bottom side of the fixed plate, and the threaded rod is fixedly connected to the output ends of the two motors. Two movable seats are sleeved on the outer wall of the threaded rod, and two connecting rods are hinged to the bottom ends of the two movable seats.

[0009] Furthermore, the threaded rod is a bidirectional threaded rod with both positive and negative threads, and the two movable seats have threaded holes inside, with the threads of the two threaded holes being opposite. The two movable seats are respectively threaded to the threaded rod, and the tops of the two movable seats are respectively provided with sliding grooves, which are slidably connected to the slider.

[0010] Furthermore, the damping structure includes a fixed ring, an extension plate, a housing, a damping rod, and a spring. The two ends of the support rod are respectively fixedly connected to the fixed ring, the bottom ends of the two fixed rings are respectively fixedly connected to the extension plate, the bottom ends of the two extension plates are respectively sleeved on the housing, the two housings are respectively provided with damping rods inside, and the outer walls of the two damping rods are respectively wound with springs.

[0011] Furthermore, one end of each of the two damping rods is fixedly connected to an extension plate, and the other end is fixedly connected to the inner wall of the outer shell. One end of each of the two springs is fixedly connected to an extension plate, and the other end is fixedly connected to the inner wall of the outer shell. The two outer shells are movably connected to rotating shafts on opposite sides.

[0012] Furthermore, a slider is fixedly connected to the bottom of the fixed plate, and several auxiliary wheels are movably connected to the rotating shaft.

[0013] The advantages of this invention compared to existing technologies are as follows:

[0014] 1. This utility model provides a rotary tiller tail-mounted leveling device. By setting an auxiliary wheel inside the device, the auxiliary wheel can help the rotary tiller maintain overall balance, improve safety, and ensure the quality and depth of tillage. At the same time, by setting a crushing rod on the auxiliary wheel, the soil clods that are not completely crushed by rotary tillage can be further crushed, improving the quality of rotary tillage and reducing the wear and tear on the leveling device caused by large soil clods.

[0015] 2. This utility model provides a rotary tiller tail-mounted leveling device. By setting a lifting structure at the top of the leveling plate, the threaded rod drives two moving seats to move towards or away from each other, so that the leveling plate hinged at the bottom can rise or fall, which can better adapt to different terrains and tillage requirements. It is simple to operate and convenient to use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is an enlarged view of the structure near the lifting structure.

[0018] Figure 3 yes Figure 1 Enlarged view of the internal structure at point A in the middle.

[0019] Figure 4 This is a schematic diagram of the lifting mechanism of the trowel plate of this utility model.

[0020] As shown in the figure: 1. Support frame; 2. Support rod; 3. Shock absorption structure; 301. Fixing ring; 302. Extension plate; 303. Outer shell; 304. Damping rod; 305. Spring; 4. Rotating shaft; 5. Auxiliary wheel; 6. Rolling rod; 7. Lifting structure; 701. Motor; 702. Threaded rod; 703. Moving seat; 704. Connecting rod; 8. Fixing plate; 801. Slider; 9. Smoothing plate; 10. Flange plate. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 and Figure 2As shown, the device includes two support frames 1, with flange plates 10 welded to the front ends of each support frame 1. Support rods 2 are welded to the middle of opposite sides of the two support frames 1. Shock-absorbing structures 3 are provided at both ends of the support rods 2. A rotating shaft 4 is provided between the two shock-absorbing structures 3. Several equidistant auxiliary wheels 5 are sleeved on the outer wall of the rotating shaft 4. Several equidistant rolling rods 6 are welded to the edges of the adjacent auxiliary wheels 5. A fixing plate 8 is welded to the top of the rear side of the two support frames 1. A lifting structure 7 is provided at the bottom of the fixing plate 8. A smearing plate 9 is provided at the bottom end of the lifting structure 7. A slider 801 is welded to the bottom of the fixing plate 8. Several auxiliary wheels 5 are respectively connected to the bearings of the rotating shaft 4. By setting auxiliary wheels 5 in the device, the auxiliary wheels 5 can help the rotary tiller maintain overall balance, improve safety, and ensure the quality and depth of tillage. At the same time, by setting rolling rods 6 on the auxiliary wheels 5, the soil clods that are not completely broken by rotary tillage can be further crushed, improving the quality of rotary tillage and reducing the wear of large soil clods on the smearing device.

[0023] like Figure 3 As shown, the shock-absorbing structure 3 includes a fixed ring 301, an extension plate 302, a housing 303, a damping rod 304, and a spring 305. Fixed rings 301 are welded to both ends of the support rod 2. Extension plates 302 are welded to the bottom ends of the two fixed rings 301. The bottom ends of the two extension plates 302 are respectively fitted onto the housing 303. Damping rods 304 are respectively provided inside the two housings 303. Springs 305 are wound around the outer walls of the two damping rods 304. Extension plates 302 are welded to one end of each damping rod 304, and the inner wall of the housing 303 is welded to the other end. Extension plates 302 are welded to one end of each spring 305, and the inner wall of the housing 303 is welded to the other end. A rotating shaft 4 is connected to the opposite side of each housing 303 via bearings. The extension and retraction of the damping rods 304 and springs 305 in the shock-absorbing structure 3 can provide a certain shock-absorbing effect and reduce wear during operation.

[0024] like Figure 4 As shown, the lifting structure 7 includes a motor 701, a threaded rod 702, a movable seat 703, and a connecting rod 704. Motors 701 are welded to both ends of the bottom side of the fixing plate 8. The two motors 701 are fixedly connected to the support frame 1. Threaded rods 702 are welded to the output ends of the two motors 701. The threaded rods 702 are bidirectional threaded rods with both positive and negative threads. Two movable seats 703 are sleeved on the outer wall of the threaded rod 702. Two connecting rods 704 are hinged to the bottom ends of the two movable seats 703. Threads are formed inside the two movable seats 703. The hole has two threaded holes with opposite threads. Two movable seats 703 are threadedly connected to threaded rods 702 respectively. The top of each movable seat 703 has a sliding groove, which is slidably connected to the slider 801. The bottom ends of the two connecting rods 704 are hinged to the trowel plate 9. By setting a lifting structure 7 at the top of the trowel plate 9, the threaded rods 702 drive the two movable seats 703 to move towards or away from each other, so that the bottom hinged trowel plate 9 can rise or fall. This makes it more adaptable to different terrains and farming requirements. It is simple to operate and convenient to use.

[0025] In practical use, refer to Figures 1 to 4 As shown, the device is fixed to the tail of the rotary tiller by bolts through the flange plate 10. The auxiliary wheel 5 helps the rotary tiller maintain overall balance, improves safety, and ensures the quality and depth of tillage. At the same time, by setting the rolling bar 6 on the auxiliary wheel 5, the soil clods that are not completely broken by rotary tillage can be further crushed, improving the quality of rotary tillage and reducing the wear and tear on the leveling device caused by large soil clods. Meanwhile, the extension and retraction of the damping rod 304 and spring 305 of the shock absorption structure 3 can provide a certain shock absorption effect during device tillage, reducing wear and tear. By adjusting the motor 701, the motor 701 drives the threaded rod 702 to drive the two moving seats 703 to move towards or away from each other, so that the bottom hinged leveling plate 9 can be raised or lowered, which can better adapt to different terrains and tillage requirements. It is simple to operate and convenient to use.

[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A rotary tiller tail-mounted leveling device, characterized in that: It includes two support frames (1), with flange plates (10) fixedly connected to the front ends of the two support frames (1) respectively. Support rods (2) are fixedly connected to the middle of opposite sides of the two support frames (1). Shock-absorbing structures (3) are provided at both ends of the support rods (2). A rotating shaft (4) is provided between the two shock-absorbing structures (3). A number of equidistant auxiliary wheels (5) are sleeved on the outer wall of the rotating shaft (4). A number of equidistant rolling rods (6) are fixedly connected to the edges of the adjacent auxiliary wheels (5). A fixing plate (8) is fixedly connected to the top of the rear side of the two support frames (1). A lifting structure (7) is provided at the bottom of the fixing plate (8). A troweling plate (9) is provided at the bottom end of the lifting structure (7).

2. The rotary tiller tail-mounted smoothing device according to claim 1, characterized in that: The bottom of the fixed plate (8) is fixedly connected to a slider (801), and several auxiliary wheels (5) are movably connected to the rotating shaft (4).

3. The rotary tiller tail-mounted smoothing device according to claim 1, characterized in that: The damping structure (3) includes a fixed ring (301), an extension plate (302), a shell (303), a damping rod (304), and a spring (305). The two ends of the support rod (2) are fixedly connected to the fixed ring (301), the bottom ends of the two fixed rings (301) are fixedly connected to the extension plate (302), the bottom ends of the two extension plates (302) are respectively sleeved on the shell (303), the two shells (303) are respectively provided with damping rods (304) inside, and the outer walls of the two damping rods (304) are respectively wound with springs (305).

4. A rotary tiller tail-mounted smoothing device according to claim 3, characterized in that: One end of each of the two damping rods (304) is fixedly connected to an extension plate (302), and the other end is fixedly connected to the inner wall of the outer shell (303). One end of each of the two springs (305) is fixedly connected to an extension plate (302), and the other end is fixedly connected to the inner wall of the outer shell (303). The two outer shells (303) are movably connected to a rotating shaft (4) on opposite sides.

5. A rotary tiller tail-mounted smoothing device according to claim 2, characterized in that: The lifting structure (7) includes a motor (701), a threaded rod (702), a movable seat (703), and a connecting rod (704). The motor (701) is fixedly connected to both ends of the bottom side of the fixed plate (8). The output ends of the two motors (701) are fixedly connected to the threaded rod (702). The outer wall of the threaded rod (702) is sleeved with two movable seats (703). The bottom ends of the two movable seats (703) are respectively hinged to two connecting rods (704).

6. A rotary tiller tail-mounted smoothing device according to claim 5, characterized in that: The threaded rod (702) is a bidirectional threaded rod with both positive and negative threads. The two movable seats (703) have threaded holes inside, and the threads of the two threaded holes are opposite. The two movable seats (703) are threadedly connected to the threaded rod (702). The top of the two movable seats (703) is provided with a sliding groove. The two sliding grooves are slidably connected to the slider (801). The bottom ends of the two connecting rods (704) are hinged to the trowel plate (9).

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