A flat rotary screen for processing wheat

Abstract

The utility model relates to the related technical field of rotary screen especially relates to a kind of plane rotary screen for wheat processing, including support, the one side of support is provided with fixed frame, the one end of fixed frame is provided with sieve box, the one end fixedly connected with drive motor on the surface of fixed frame, in use process, drive motor starts operation by power on, its output end drives first transmission shaft rotation, driving wheel is connected by surface bonding transmission belt, when the sieve movement amplitude of sieve box needs to be adjusted, due to the first connecting rod of bearing connection in the inner side surface of sliding block, transmission rod in movement process, surface one side fixedly connected third connecting rod is rotated in turn, the rotation of third connecting rod will drive bearing connection fourth connecting rod swing, the swing of fourth connecting rod will drive bearing connection sliding rod displacement, to adjust the distance between connecting shaft and transmission wheel center, realize the purpose of adjusting sieve movement amplitude of sieve box, greatly improve the efficiency of wheat screening.

Description

Technical Field

[0001] This utility model relates to the technical field of planar rotary screens, and in particular to a planar rotary screen for wheat processing. Background Technology

[0002] In modern industrial production, whether it's ore grading after mining, fine screening of chemical raw materials, or purity control of materials in food processing, efficient and precise screening equipment is indispensable. The planar rotary screen emerged to meet this demand. With its unique mechanical structure design, it utilizes the coordinated operation of a drive motor and a complex transmission system to generate a planar rotary motion of the screen box along a specific trajectory. In the wheat processing industry, efficient and precise screening is crucial at every stage, from raw grain acquisition to finished flour production; therefore, a planar rotary screen specifically for wheat processing is particularly needed.

[0003] However, existing planar rotary screens, due to their singular motion trajectory—the screen box typically rotates only along a fixed circular path—are ill-suited to the screening needs of different varieties and qualities of wheat. This not only leads to incomplete screening and low efficiency but also increases energy consumption and equipment wear, hindering high-efficiency screening and significantly reducing both screening efficiency and quality. Furthermore, existing planar rotary screens lack adjustment flexibility. Different raw materials require different rotation amplitudes and frequencies, and adjusting the screen box's motion parameters is complex, labor-intensive, and disrupts production schedules, making it difficult to meet diverse screening needs and impacting wheat screening. Utility Model Content

[0004] The purpose of this invention is to provide a planar rotary screen for wheat processing, addressing the problems of existing planar rotary screens mentioned in the background section. These screens suffer from a single motion trajectory; the screen box typically rotates only along a fixed circular path, making it difficult to adapt to the screening needs of different varieties and qualities of wheat. This not only easily leads to incomplete screening and low efficiency but also increases energy consumption and equipment wear, hindering high-efficiency screening and significantly reducing screening efficiency and quality. Furthermore, existing planar rotary screens lack adjustment flexibility. Different raw materials require different rotation amplitudes and frequencies, and the process of adjusting the screen box motion parameters is complex, consuming manpower and affecting production progress, making it difficult to meet diverse screening needs and impacting wheat screening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a planar rotary screen for wheat processing, comprising a support frame, a fixed frame on one side of the support frame, a screen box at one end of the fixed frame, a drive motor fixedly connected to one end of the surface of the fixed frame, a first transmission shaft fixedly connected to the output end of the drive motor, a drive wheel fixedly connected to one side of the surface of the first transmission shaft, a transmission belt attached to one side of the surface of the drive wheel, a driven wheel attached to the inner surface of the transmission belt, a second transmission shaft fixedly connected to the inner surface of the driven wheel, and a transmission belt fixedly connected to one end of the second transmission shaft. A driving wheel is provided. A cylinder is fixedly connected to one side of the inner wall surface of the driving wheel. A third drive shaft is fixedly connected to the output end of the cylinder. A sliding block is fixedly connected to one end of the third drive shaft. A first connecting rod is connected to the inner surface of the sliding block by a bearing. A second connecting rod is connected to one end of the first connecting rod by a bearing. A drive rod is fixedly connected to one end of the second connecting rod. A third connecting rod is fixedly connected to one side of the surface of the drive rod. A fourth connecting rod is connected to one end of the third connecting rod by a bearing. A sliding rod is connected to one end of the upper surface of the sliding rod by a connecting shaft.

[0006] Preferably, the inner surface of the transmission rod is connected to a housing via a bearing.

[0007] Preferably, the second drive shaft is connected to the fixed frame bearing, and the sliding block is slidably connected to the drive wheel.

[0008] Preferably, the connecting shaft is connected to the screen box bearing, and the sliding rod is slidably connected to the transmission wheel.

[0009] Preferably, the connecting shaft is slidably connected to the transmission wheel.

[0010] Preferably, the outer casing is fixedly connected to the drive wheel.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This planar rotary screen for wheat processing uses a cylinder to drive the extension and retraction of a third transmission shaft, causing a sliding block to slide inside the transmission wheel. Combined with a multi-stage linkage structure, the movement trajectory and amplitude of the screen box can be flexibly adjusted according to the characteristics of wheat grain size and impurity content, effectively separating impurities and broken grains from the wheat and greatly improving the screening effect. At the same time, the equipment is extremely easy to adjust; simply controlling the cylinder's extension and retraction amount can quickly change the screen box's rotation amplitude and frequency without disassembling major components. Operators can complete parameter settings through a simple control system, providing strong support for improving product quality and reducing production costs in the wheat processing industry, and greatly improving the efficiency of wheat screening. Attached Figure Description

[0012] Figure 1 This is a side view of the appearance structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the fixing frame and the sieve box of this utility model.

[0014] Figure 3 This is a schematic diagram of the interaction between part of the screen box and the transmission wheel in this utility model;

[0015] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 This is a schematic diagram of the structure in which the connecting shaft and the cylinder of this utility model cooperate with each other.

[0017] In the diagram: 1. Support; 2. Fixing frame; 3. Screen box; 4. Drive motor; 5. First drive shaft; 6. Driving wheel; 7. Drive belt; 8. Driven wheel; 9. Second drive shaft; 10. Drive wheel; 11. Cylinder; 12. Third drive shaft; 13. Sliding block; 14. First connecting rod; 15. Second connecting rod; 16. Drive rod; 17. Housing; 18. Third connecting rod; 19. Fourth connecting rod; 20. Sliding rod; 21. Connecting shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5This utility model provides a technical solution: a planar rotary screen for wheat processing, including a support 1, a fixed frame 2 on one side of the support 1, a screen box 3 at one end of the fixed frame 2, a drive motor 4 fixedly connected to one end of the surface of the fixed frame 2, a first transmission shaft 5 fixedly connected to the output end of the drive motor 4, a drive wheel 6 fixedly connected to one side of the surface of the first transmission shaft 5, a transmission belt 7 attached to one side of the surface of the drive wheel 6, a driven wheel 8 attached to the inner surface of the transmission belt 7, a second transmission shaft 9 fixedly connected to the inner surface of the driven wheel 8, a transmission wheel 10 fixedly connected to one end of the second transmission shaft 9, a cylinder 11 fixedly connected to one side of the inner wall surface of the transmission wheel 10, a third transmission shaft 12 fixedly connected to the output end of the cylinder 11, and a sliding block 13 fixedly connected to one end of the third transmission shaft 12. A first connecting rod 14 is connected to the inner surface of block 13 via a bearing. A second connecting rod 15 is connected to one end of the first connecting rod 14 via a bearing. A transmission rod 16 is fixedly connected to one end of the second connecting rod 15. A third connecting rod 18 is fixedly connected to one side of the surface of the transmission rod 16. A fourth connecting rod 19 is connected to one end of the third connecting rod 18 via a bearing. A sliding rod 20 is connected to one end of the fourth connecting rod 19 via a bearing. A connecting shaft 21 is fixedly connected to one end of the upper surface of the sliding rod 20. During use, the drive motor 4 is powered on and begins to run. Its output end drives the first transmission shaft 5 to rotate. When the first transmission shaft 5 rotates, the drive wheel 6 fixed to one side of its surface rotates accordingly. The drive wheel 6 transmits power to the driven wheel 8 through the transmission belt 7 that is attached to its surface. The driven wheel 8 drives the second transmission shaft 9, which is fixedly connected to it, to rotate. Since the second transmission shaft 9 is connected to the fixed frame 2 via a bearing, the stability of the rotation is ensured. At the same time, the rotation of the second transmission shaft 9 drives the transmission wheel 10 fixed to one end of it to rotate. When it is necessary to adjust the screening amplitude of the screen box 3, the cylinder 11 can be activated. The output end of the cylinder 11 pushes the third transmission shaft 12 to perform telescopic movement. Since the sliding block 13 is slidably connected to the transmission wheel 10, the third transmission shaft 12 drives the sliding block 13 to reciprocate on the inner surface of the transmission wheel 10. Since the first connecting rod 14 is connected to the bearing on the inner surface of the sliding block 13, the first connecting rod 14 will swing with the reciprocating sliding of the sliding block 13. The swinging of the first connecting rod 14 drives the second connecting rod 15 connected to the bearing to rotate. The rotation of the second connecting rod 15 will drive the transmission rod 16 to rotate. During the movement of the transmission rod 16, the third connecting rod 18, which is fixedly connected to one side of the surface, will rotate accordingly. The rotation of the third connecting rod 18 will drive the fourth connecting rod 19 connected to the bearing to swing. The swinging of the fourth connecting rod 19 will drive the sliding rod 20 connected to the bearing to move, thereby adjusting the distance between the connecting shaft 21 and the center of the transmission wheel 10, thus achieving the purpose of adjusting the screening amplitude of the screen box 3.

[0020] Furthermore, the inner surface of the transmission rod 16 is connected to the housing 17 via a bearing. The connection between the transmission rod 16 and the housing 17 provides support for the transmission rod 16, ensuring its stable transmission.

[0021] Furthermore, the second drive shaft 9 is connected to the fixed frame 2 by a bearing, and the sliding block 13 is slidably connected to the drive wheel 10. The arrangement of the second drive shaft 9 and the fixed frame 2 reduces the frictional resistance when the drive shaft rotates, ensuring the smoothness of the rotation of the second drive shaft 9, making the power transmission more stable and efficient, and avoiding energy loss and component wear caused by excessive friction. The arrangement of the sliding block 13 and the drive wheel 10 allows the sliding block 13 to slide flexibly on the inner surface of the drive wheel 10. Combined with the telescopic movement of the cylinder 11, the movement trajectory and amplitude of the screen box 3 can be precisely controlled, improving the accuracy and efficiency of screening.

[0022] Furthermore, the connecting shaft 21 is connected to the screen box 3 by a bearing, and the sliding rod 20 is slidably connected to the transmission wheel 10. The connection between the connecting shaft 21 and the screen box 3 ensures that the screen box 3 can rotate flexibly around the connecting shaft 21 during movement, reducing movement resistance and enhancing the stability of the screen box 3's movement. This prevents the screen box from shaking or shifting during high-speed operation, ensuring the screening effect. The connection between the sliding rod 20 and the transmission wheel 10 allows the sliding rod 20 to accurately transmit power to the screen box 3 under the drive of the transmission wheel 10, realizing the planar rotary motion of the screen box 3. This connection method can adapt to the movement requirements of the screen box under different working conditions, improving the versatility and reliability of the equipment.

[0023] Furthermore, the connecting shaft 21 is slidably connected to the transmission wheel 10. By setting the connecting shaft 21 and the transmission wheel 10, the power transmission path of the transmission system is further optimized, so that the movement of the transmission wheel 10 can be transmitted to the screen box 3 more smoothly, reducing the jamming phenomenon in the power transmission process.

[0024] Furthermore, the outer casing 17 is fixedly connected to the transmission wheel 10. The arrangement of the outer casing 17 and the transmission wheel 10 provides a stable support structure for the transmission rod 16, enhancing the overall rigidity of the transmission system. During the movement of the screen box 3, the movement direction of the transmission rod 16 can be effectively restricted, ensuring that the transmission rod 16 stably transmits power to the screen box 3 and preventing abnormal screening caused by the shaking or displacement of the transmission rod 16.

[0025] Working principle: During use, the drive motor 4 starts running when the power is turned on. Its output end drives the first transmission shaft 5 to rotate. When the first transmission shaft 5 rotates, the drive wheel 6 fixed on one side of its surface rotates accordingly. The drive wheel 6 transmits power to the driven wheel 8 through the transmission belt 7 that is attached to its surface. The driven wheel 8 drives the second transmission shaft 9, which is fixedly connected to it, to rotate. Since the second transmission shaft 9 is connected to the fixed frame 2 by bearings, the rotation stability is ensured. At the same time, the rotation of the second transmission shaft 9 drives the transmission wheel 10 fixed at one end of it to rotate. When it is necessary to adjust the screening amplitude of the screen box 3, the cylinder 11 can be started. The output end of the cylinder 11 pushes the third transmission shaft 12 to perform telescopic movement. Since the sliding block 13 is slidably connected to the transmission wheel 10, the third transmission shaft 12 drives the sliding block 13 to reciprocate on the inner surface of the transmission wheel 10. Since the first connecting rod 14 is connected to the inner surface of the sliding block 13 by bearings, the first connecting rod 14 will swing with the reciprocating sliding of the sliding block 13. The swinging of the first connecting rod 14 causes the second connecting rod 15, which is connected to the bearing, to rotate. The rotation of the second connecting rod 15 causes the transmission rod 16 to rotate. During the movement of the transmission rod 16, the third connecting rod 18, which is fixedly connected to one side of its surface, rotates accordingly. The rotation of the third connecting rod 18 causes the fourth connecting rod 19, which is connected to the bearing, to swing. The swinging of the fourth connecting rod 19 causes the sliding rod 20, which is connected to the bearing, to move, thereby adjusting the distance between the connecting shaft 21 and the center of the transmission wheel 10. This achieves the purpose of adjusting the sieving amplitude of the sieve box 3, greatly improving the efficiency of wheat sieving.

[0026] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A planar rotary screen for wheat processing, comprising a support (1), characterized in that: A fixed frame (2) is provided on one side of the bracket (1), and a screen box (3) is provided at one end of the fixed frame (2). A drive motor (4) is fixedly connected to one end of the surface of the fixed frame (2). A first transmission shaft (5) is fixedly connected to the output end of the drive motor (4). A drive wheel (6) is fixedly connected to one side of the surface of the first transmission shaft (5). A transmission belt (7) is attached to one side of the surface of the drive wheel (6). A driven wheel (8) is attached to the inner surface of the transmission belt (7). A second transmission shaft (9) is fixedly connected to the inner surface of the driven wheel (8). A transmission wheel (10) is fixedly connected to one end of the second transmission shaft (9). A cylinder (11) is fixedly connected to one side of the inner wall surface of the transmission wheel (10). A third drive shaft (12) is fixedly connected to the output end of the cylinder (11). A sliding block (13) is fixedly connected to one end of the third drive shaft (12). A first connecting rod (14) is connected to the inner surface of the sliding block (13) by a bearing. A second connecting rod (15) is connected to one end of the first connecting rod (14) by a bearing. A transmission rod (16) is fixedly connected to one end of the second connecting rod (15). A third connecting rod (18) is fixedly connected to one side of the surface of the transmission rod (16). A fourth connecting rod (19) is connected to one end of the third connecting rod (18) by a bearing. A sliding rod (20) is connected to one end of the fourth connecting rod (19) by a bearing. A connecting shaft (21) is fixedly connected to one end of the upper surface of the sliding rod (20).

2. A planar rotary screen for wheat processing according to claim 1, characterized in that: The inner surface bearing of the transmission rod (16) is connected to the outer shell (17).

3. A planar rotary screen for wheat processing according to claim 1, characterized in that: The second drive shaft (9) is connected to the fixed frame (2) bearing, and the sliding block (13) is slidably connected to the drive wheel (10).

4. A planar rotary screen for wheat processing according to claim 1, characterized in that: The connecting shaft (21) is connected to the bearing of the sieve box (3), and the sliding rod (20) is slidably connected to the transmission wheel (10).

5. A planar rotary screen for wheat processing according to claim 1, characterized in that: The connecting shaft (21) is slidably connected to the transmission wheel (10).

6. A planar rotary screen for wheat processing according to claim 2, characterized in that: The outer shell (17) is fixedly connected to the transmission wheel (10).

Images