A harvester screen with elastic cleaning of fish scales

Abstract

The utility model relates to the technical field of harvester screen, propose a kind of with elastic cleaning fish scale's harvester screen, including support frame and the multiple screen pieces of rotation connection in the inside of support frame;The screen piece is staggered arrangement, both sides rotation connection in the inside of support frame;The inside of support frame is equipped with two action grooves;The both ends of the screen piece are fixedly provided with swing rod;The screen piece includes screen tooth, reinforcing strip and rotary seat. Set with high elasticity polyurethane material, give screen piece high elasticity, wear resistance and deformation resistance, adapt to the cleaning demand of different crops, and the screen piece setting of high elasticity polyurethane material, when using, screen piece can automatically dredge screen hole using the vibration generated by crop movement, reduce the probability of screen piece blockage, improve the use efficiency of equipment, and the setting of rotary connection, the angle of screen piece can be adjusted in time, meet the requirement of different crops.

Description

Technical Field

[0001] This utility model belongs to the field of harvester screen technology, specifically relating to a harvester screen with elastic fish scale cleaning function. Background Technology

[0002] Harvester screens are core components in harvesters used to separate grains from impurities such as straw. Their structure typically consists of a screen body, screen bars, and connecting plates. Some designs also include anti-clogging components or air guide devices to improve screening efficiency. For example, anti-clogging structures automatically remove residues using cleaning steel brushes to prevent mesh blockage; concave screens employ double-layer screens and a smooth, rounded surface design to reduce straw breakage and improve separation; vibrating screens enhance screening stability through a special arrangement of screen units. Furthermore, some screens support adjustable aperture size or quick-change functions to adapt to different crop requirements.

[0003] In the prior art, utility model patent application number 201822145161.6 discloses a vibrating screen and a harvester. The vibrating screen includes several racks arranged side by side, which are fixedly connected by several connecting ribs. The connecting ribs are located on the serrated edges of the racks. A notch is provided at the position where the serrated edge connects to the connecting rib, and the connecting rib is embedded in the notch. The vibrating screen also includes a frame, with the racks located inside the frame. The two ends of the racks are perpendicularly fixed to the inner walls of the two opposite sides of the frame, and the connecting ribs are perpendicularly fixed to the other two opposite sides of the frame. This utility model enables rapid welding of the vibrating screen using a spot welding machine, allowing for continuous machining with minimal manual labor, significantly reducing production efficiency and processing costs.

[0004] However, the following problems were found in the implementation of the relevant technology: the device cannot adjust the gap of the screen in a timely manner during use, and cannot adjust the screen in a timely manner according to the specific situation during harvesting.

[0005] Therefore, a harvester screen with elastic cleaning function for fish scales is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to propose a harvester screen with elastic cleaning function for fish scales, in order to solve the problem in the prior art that the gap of the screen cannot be adjusted in a timely manner, and that the screen cannot be adjusted in a timely manner according to the specific situation during harvesting.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A harvester screen with elastic fish scale cleaning function, comprising a support frame and multiple screen plates rotatably connected inside the support frame; the screen plates are staggered and rotatably connected to the inside of the support frame on both sides; two actuation grooves are formed inside the support frame; swing rods are fixedly provided at both ends of the screen plates, and connecting rods are sleeved on the outer walls of the swing rods on both sides for connecting multiple swing rods in series, and the swing rods and connecting rods are all located inside the actuation grooves; the screen plate includes screen teeth, reinforcing strips and a rotating seat; the screen teeth and the rotating seat are made of high-elasticity polyurethane.

[0008] Preferably, the sieve teeth are positioned above the reinforcing strip for screening operations, the rotating seat is positioned below the reinforcing strip, and the swing rods are positioned on both sides of the rotating seat.

[0009] Preferably, the reinforcing strip is made of metal and is used to reinforce the screen teeth. It is clamped to both sides of the screen teeth by riveting. An auxiliary support rod is provided inside the support frame to support the screen plate.

[0010] Preferably, the moving slot is provided with a moving block inside, the outer wall of the connecting rod is provided with a connecting column, the moving block is provided with an elongated moving slot inside, and the connecting column is slidably connected inside the moving slot of the moving block.

[0011] Preferably, a rotating screw is rotatably connected inside the actuating groove, and the rotating screw is threadedly connected to the inner wall of the moving block.

[0012] Preferably, a support seat is provided inside the motion groove, a limit rod is provided on the outer wall of the support seat, and the other end of the limit rod is provided on the inner wall of the support frame, and the limit rod passes through the moving block.

[0013] Preferably, the outer wall of the support frame is provided with two servo motors, the output end of each servo motor is provided with a reducer, and the output end of the reducer is fixedly connected to the rotating screw.

[0014] Compared with the prior art, the working principle and beneficial effects of this utility model are as follows: the use of high elastic polyurethane material gives the screen plate high elasticity, wear resistance and deformation resistance, which can adapt to the cleaning needs of different crops. In addition, the high elastic polyurethane material screen plate can automatically clear the screen holes by utilizing the vibration generated by the movement of crops during use, reducing the probability of screen plate blockage and improving the efficiency of equipment use. Furthermore, the rotary connection setting allows the angle of the screen plate to be adjusted in time to meet the requirements of different crops. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a cross-sectional three-dimensional structural diagram of the action groove in this utility model; Figure 3 This is a schematic cross-sectional view of the sieve plate in this utility model; In the diagram: 1. Support frame; 2. Screen plate; 21. Screen teeth; 22. Reinforcing strip; 23. Rotating seat; 3. Auxiliary support rod; 4. Motion groove; 5. Swing rod; 6. Connecting rod; 7. Moving block; 8. Connecting column; 9. Rotating screw; 10. Reducer; 11. Servo motor; 12. Limiting rod; 13. Support seat. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figure 1-3 This embodiment proposes a harvester screen with elastic fish scale cleaning function, including a support frame 1 and multiple screen plates 2 rotatably connected inside the support frame 1. The screen plates 2 are staggered and rotatably connected inside the support frame 1 on both sides. Two actuation grooves 4 are opened inside the support frame 1. Swing rods 5 are fixedly installed at both ends of the screen plates 2. A series rod 6 is sleeved on the outer wall of each swing rod 5 to connect multiple swing rods 5 in series. Both the swing rods 5 and the series rod 6 are located inside the actuation grooves 4.

[0018] The screen plate 2 includes screen teeth 21, reinforcing bars 22, and a rotating base 23. The screen teeth 21 and the rotating base 23 are made of high-elasticity polyurethane. The screen teeth 21 are located above the reinforcing bars 22 for screening operations. The rotating base 23 is located below the reinforcing bars 22. Swing rods 5 are located on both sides of the rotating base 23. By setting the swing rods 5, the torque when rotating the screen plate 2 can be directly increased, avoiding the difficulty of rotation caused by directly rotating the screen plate 2.

[0019] The reinforcing strip 22 is made of metal and is used to reinforce the screen teeth 21. It is clamped on both sides of the screen teeth 21 by riveting. The support frame 1 is equipped with an auxiliary support rod 3 to support the screen plate 2. The setting of the metal reinforcing strip 22 can increase the strength of the screen plate 2, prevent the high elastic polyurethane screen plate 2 from breaking after long-term vibration, and extend the service life of the screen plate 2.

[0020] The moving groove 4 is equipped with a moving block 7 inside, and the outer wall of the connecting rod 6 is equipped with a connecting column 8. The moving block 7 has an elongated moving groove inside, and the connecting column 8 is slidably connected inside the moving groove of the moving block 7. The moving groove 4 is rotatably connected with a rotating screw 9, and the rotating screw 9 is threadedly connected to the inner wall of the moving block 7.

[0021] The motion slot 4 is equipped with a support base 13. The outer wall of the support base 13 is equipped with a limit rod 12. The other end of the limit rod 12 is set on the inner wall of the support frame 1. The limit rod 12 passes through the moving block 7. The setting of the limit rod 12 can ensure the movement accuracy of the moving block 7 and ensure the movement path of the moving block 7.

[0022] Two servo motors 11 are installed on the outer wall of the support frame 1. A reducer 10 is installed at the output end of the servo motor 11. The output end of the reducer 10 is fixedly connected to the rotating screw 9. The arrangement of the reducer 10 and the servo motor 11 can ensure the rotation torque of the rotating screw 9.

[0023] When using the harvester screen described in this utility model, the screen is first installed on the harvester. Before use, the angle of the screen plate 2 is adjusted according to the characteristics of the crop. During adjustment, the servo motor 11 is started first. The servo motor 11 amplifies the torque through the reducer 10 and then transmits the torque to the rotating screw 9. The rotation of the rotating screw 9 drives the moving block 7 to move. The movement of the moving block 7 drives the connecting column 8 to move, which in turn drives the series rod 6 to move. The movement of the series rod 6 drives the swing rod 5 to swing left and right, thereby adjusting the angle. After adjustment, it can be used.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A harvester screen with elastic cleaning function for fish scales, characterized in that: The device includes a support frame (1) and multiple screen plates (2) rotatably connected inside the support frame (1); the screen plates (2) are staggered and rotatably connected inside the support frame (1) on both sides; two action grooves (4) are opened inside the support frame (1); swing rods (5) are fixedly provided at both ends of the screen plates (2), and connecting rods (6) are sleeved on the outer walls of the swing rods (5) on both sides to connect multiple swing rods (5) in series, and the swing rods (5) and connecting rods (6) are both located inside the action grooves (4); the screen plates (2) include screen teeth (21), reinforcing strips (22) and rotating seats (23); the screen teeth (21) and rotating seats (23) are made of high elastic polyurethane.

2. A harvester screen with elastic fish scale cleaning function according to claim 1, characterized in that: The sieve teeth (21) are positioned above the reinforcing strip (22) for screening operations. The rotating seat (23) is positioned below the reinforcing strip (22), and the swing rod (5) is positioned on both sides of the rotating seat (23).

3. A harvester screen with elastic fish scale cleaning function according to claim 1, characterized in that: The reinforcing strip (22) is made of metal and is used to reinforce the screen teeth (21). It is clamped on both sides of the screen teeth (21) by riveting. The support frame (1) is provided with an auxiliary support rod (3) to support the screen plate (2).

4. A harvester screen with elastic fish scale cleaning function according to claim 1, characterized in that: The moving slot (4) is provided with a moving block (7) inside, and the outer wall of the connecting rod (6) is provided with a connecting column (8). The moving block (7) is provided with a long strip moving slot inside, and the connecting column (8) is slidably connected inside the moving slot of the moving block (7).

5. A harvester screen with elastic fish scale cleaning function according to claim 4, characterized in that: The inside of the action groove (4) is rotatably connected to a rotating screw (9), which is threadedly connected to the inner wall of the moving block (7).

6. A harvester screen with elastic fish scale cleaning function according to claim 4, characterized in that: The inside of the action groove (4) is provided with a support seat (13), and the outer wall of the support seat (13) is provided with a limit rod (12). The other end of the limit rod (12) is provided on the inner wall of the support frame (1), and the limit rod (12) passes through the moving block (7).

7. A harvester screen with elastic fish scale cleaning function according to claim 5, characterized in that: Two servo motors (11) are provided on the outer wall of the support frame (1). A speed reducer (10) is provided at the output end of the servo motor (11). The output end of the speed reducer (10) is fixedly connected to the rotating screw (9).

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