An adjustable opening shaker and harvester

Abstract

This utility model discloses an adjustable-opening vibrating screen and harvester, belonging to the field of harvesters. It solves the problem of laborious screen adjustment in existing technologies. The technical solution mainly includes a frame with several rotatably connected screen plates spaced at intervals. An adjusting toothed plate is slidably connected to the frame, and the sliding of the adjusting toothed plate drives the screen plates to rotate, thereby adjusting the screen plate opening. The frame is equipped with a drive mechanism and a transmission mechanism. The drive mechanism includes a drive shaft mounted on the outer periphery of the frame, with the power input end of the drive shaft protruding from the side wall of the frame. The transmission mechanism includes a connecting rod and a swinging component hinged to the frame. The power output end of the drive shaft is drively connected to the swinging component. The two ends of the connecting rod are respectively hinged to the swinging component and the adjusting toothed plate. The rotation of the drive shaft drives the swinging component to rotate, and the swinging component drives the adjusting toothed plate to slide via the connecting rod. This utility model mainly makes the adjustment of the vibrating screen more convenient.

Description

Technical Field

[0001] This utility model demonstrates an adjustable opening vibrating screen and a harvester, belonging to the field of harvester technology. Background Technology

[0002] When harvesting different crops, the types and textures of impurities contained in the grain mixture vary, and the load on the cleaning system is not constant. Therefore, the opening of the fish-scale vibrating screen needs to be flexibly adjusted.

[0003] In existing technologies, mechanical adjustment devices typically use a swing element to control a linkage mechanism, which in turn drives the screen shaft to rotate, thereby changing the opening degree. However, the swing element is generally fixed on the vibrating screen frame, which is limited by the internal space of the harvester, making operation inconvenient, time-consuming, and labor-intensive, and also poses certain dangers. Utility Model Content

[0004] The purpose of this invention is to solve the problem that adjusting the screen plates in the prior art is relatively laborious. To this end, an adjustable opening vibrating screen and harvester are provided, making the adjustment of the vibrating screen more convenient.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An adjustable-opening vibrating screen includes a frame with several rotatably connected screen plates spaced apart on the frame. An adjusting toothed plate is slidably connected to the frame, and the adjusting toothed plate drives the screen plates to rotate to adjust the opening of the screen plates. The frame is provided with a drive mechanism and a transmission mechanism. The drive mechanism includes a drive shaft mounted on the outer periphery of the frame, with the power input end of the drive shaft protruding from the side wall of the frame. The transmission mechanism includes a connecting rod and a swinging member hinged to the frame. The power output end of the drive shaft is transmittedly connected to the swinging member. The two ends of the connecting rod are respectively hinged to the swinging member and the adjusting toothed plate. The rotation of the drive shaft drives the swinging member to rotate, and the swinging member drives the adjusting toothed plate to slide through the connecting rod.

[0007] The beneficial effects of using this utility model are:

[0008] The drive mechanism described in this invention includes a drive shaft. The rotation of the drive shaft drives the oscillating component to oscillate, which in turn drives the adjusting toothed plate to slide via a connecting rod, thereby adjusting the opening of the sieve plate. This allows the sieve plate to sieve different types and textures of grains and impurities, achieving optimal throughput and sieve accuracy during the sieve process, thus improving sieve efficiency and quality. Furthermore, placing the power input end of the drive shaft on the side wall of the frame avoids interference from the frame, providing greater operating space for the power input and output ends. This facilitates connection to an external power source, allowing for convenient manual operation or electric drive via a motor, making the drive shaft simpler and more convenient. Secondly, the input end of the drive shaft protrudes from the side wall of the frame, facilitating maintenance and replacement of the power source without requiring extensive disassembly of the entire device, significantly reducing maintenance time and costs.

[0009] Preferably, the power output end of the drive shaft is threaded, and the end of the swing member is provided with a first nut that is threaded with the drive shaft. The first nut is rotatably connected to the swing member, and the swing member restricts the first nut from rotating synchronously with the drive shaft. The drive shaft drives the first nut to slide axially to rotate the swing member. Using the aforementioned technical solution, the thread on the drive shaft surface and the engagement of the first nut can accurately convert the rotational motion of the drive shaft into the axial linear motion of the first nut. Furthermore, the axial sliding of the first nut will cause the swing member to rotate around its hinge point. This transmission method can achieve relatively precise displacement control, thereby precisely adjusting the rotation angle of the swing member, and ultimately achieving precise adjustment of the sliding distance of the adjusting toothed plate and the opening of the screen plate, meeting the stringent requirements of different material screening for the screen plate opening.

[0010] Preferably, the swing element includes two mounting plates, with both ends of the first nut rotatably connected to the two mounting plates respectively. The first nut has a threaded hole for the drive shaft to pass through, and the threaded hole is located between the two mounting plates. Using the aforementioned technical solution, the two mounting plates support and connect the first nut from both ends, forming a relatively stable structural system. This effectively restricts the rotation of the first nut with the drive shaft, ensuring that the rotation of the drive shaft can be converted into linear motion of the first nut, making power transmission more stable.

[0011] Preferably, the rotation plane of the drive shaft is perpendicular to the rotation plane of the first nut.

[0012] Preferably, a first limiting member and a second limiting member are fixedly installed on the frame. The first limiting member has a shaft hole through which the drive shaft passes, and the first limiting member is rotatably engaged with the shaft hole. A stop is provided on the outer periphery of the drive shaft, and the second limiting member is engaged with the stop to restrict the axial movement of the drive shaft. Using the aforementioned technical solution, the first limiting member is fixed to the frame, and the drive shaft is rotatably engaged through the shaft hole of the first limiting member. That is, the first limiting member can keep the axial position of the drive shaft stable during rotation, thereby achieving radial limiting of the drive shaft; while the stop and the second limiting member form an axial limiting, preventing axial movement of the drive shaft. The first and second limiting members respectively form radial and axial limiting of the drive shaft, ensuring stable and reliable rotation of the drive shaft.

[0013] Preferably, the frame includes side plates on both sides of the frame, the power input end of the drive shaft passes through the side plate and is rotatably connected to the side plate, the second limiting member is fixed to the side of the side plate facing the frame, a limiting gap is formed between the second limiting member and the side plate, and the stop block is restricted within the limiting gap.

[0014] Preferably, the frame includes side plates on both sides of the frame, the power input end of the drive shaft is threaded, and the drive shaft is equipped with a locking nut, which is tightened to the side plate facing away from the frame to restrict the rotation of the drive shaft.

[0015] Preferably, the bottom of the adjusting toothed plate is provided with several grooves for the screen plates to be embedded, and the length direction of the adjusting toothed plate is parallel to the direction in which the screen plates are arranged at intervals.

[0016] This utility model also demonstrates a harvester, including a vibrating screen, wherein the vibrating screen is an adjustable-opening vibrating screen as described in any of the above-mentioned embodiments.

[0017] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of part B in the middle section;

[0022] Figure 4 for Figure 1 A magnified view of part C in the middle;

[0023] Figure 5 This is a partial enlarged view of Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the drive shaft in Embodiment 1 of this utility model.

[0025] Reference numerals: 1. Frame; 11. Front crossbeam; 12. Side plate; 13. Screen plate; 131. Rotating shaft; 14. Adjusting toothed plate; 141. Groove; 21. Drive shaft; 211. First thread; 212. Stop block; 213. Locking nut; 214. Power input end; 215. Second thread; 22. First limiting member; 23. Second limiting member; 24. First nut; 31. Swinging member; 311. Mounting plate; 32. Connecting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figures 1 to 6As shown in the figure, this embodiment demonstrates an adjustable opening vibrating screen, including a frame 1. Several rotatably connected screen plates 13 are distributed at intervals on the frame 1. An adjusting toothed plate 14 is slidably connected to the frame 1. The adjusting toothed plate 14 slides and drives the screen plates 13 to rotate to adjust the opening of the screen plates 13. The frame 1 is provided with a drive mechanism and a transmission mechanism. The drive mechanism includes a drive shaft 21 installed on the outer periphery of the frame 1. The power input end 214 of the drive shaft 21 protrudes from the side wall of the frame 1. The transmission mechanism includes a connecting rod 32 and a swing member 31 hinged to the frame 1. The power output end of the drive shaft 21 is transmittedly connected to the swing member 31. The two ends of the connecting rod 32 are respectively hinged to the swing member 31 and the adjusting toothed plate 14. The rotation of the drive shaft 21 drives the swing member 31 to rotate. The swing member 31 drives the adjusting toothed plate 14 to slide through the connecting rod 32.

[0030] The driving mechanism described in this embodiment includes a drive shaft 21. The rotation of the drive shaft 21 drives the oscillating member 31 to oscillate, thereby causing the oscillating member 31 to slide through the connecting rod 32 to adjust the opening of the sieve plate 13. This allows the sieve plate 13 to sieve different types and textures of grains and impurities, achieving optimal throughput and sieve accuracy during the sieve process, thus improving sieve efficiency and quality. Furthermore, by placing the power input end 214 of the drive shaft 21 on the side wall of the frame 1, interference from the frame 1 to the power input end 214 of the drive shaft 21 is avoided, providing greater operating space for the power input and output ends. This facilitates connection to an external power source, allowing for manual driving or electric drive by a motor, making the driving of the drive shaft 21 simpler and more convenient. Additionally, the input end of the drive shaft 21 protrudes from the side wall of the frame 1, facilitating maintenance and replacement of the power source without requiring large-scale disassembly of the entire device, significantly reducing maintenance time and costs.

[0031] like Figures 1 to 4As shown, in this embodiment, the frame 1 includes two side plates 12, with a front crossbeam 11 and a rear crossbeam fixed between the two sides. Multiple connecting plates are spaced apart between the front and rear crossbeams. Several sieve plates 13 are rotatably connected between adjacent connecting plates. The sieve plates 13 are spaced apart along the length of the connecting plates. Adjusting toothed plates 14 are set parallel to the connecting plates and can slide relative to them. The bottom of the adjusting toothed plates 14 has several grooves 141 for the rotating shaft 131 to enter and extend into. The number of grooves 141 is the same as the number of sieve plates 13. 13 is rotatably connected to the connecting plate via a rotating shaft 131. The rotating shaft 131 is U-shaped and placed horizontally. The lower end of the rotating shaft 131 is rotatably connected to the connecting plate, and the upper end of the rotating shaft 131 extends into the groove 141. The screen plate 13 is fixedly connected to the rotating shaft 131. During the sliding process of the adjusting toothed plate 14 relative to the connecting plate, the adjusting toothed plate 14 drives the upper end of the rotating shaft 131 to rotate around the lower end of the rotating shaft 131 through the groove 141, so that the screen plate 13 rotates with the rotating shaft 131, thereby realizing the adjustment of the opening and closing degree of the screen plate 13.

[0032] like Figure 2 and Figure 3 As shown, the drive mechanism in this embodiment includes a drive shaft 21, which is mounted on the front side of the front crossbeam. The power input end 214 of the drive shaft 21 passes through one of the side plates 12 and protrudes from the outer side wall of the side plate 12. The transmission mechanism includes a connecting rod 32 and a swing member 31. The middle part of the swing member 31 is rotatably mounted on the front crossbeam 11. One end of the swing member 31 extends into the inner side of the front crossbeam 11, and the other end extends to the outer side of the front crossbeam 11. One end of the connecting rod 32 is rotatably connected to the adjusting gear plate 14, and the other end is rotatably connected to the swing member 31. The power output end surface of the drive shaft 21 is provided with a first thread 211, and the end of the swing member 31 is provided with a first nut 24 that mates with the first thread 211 of the drive shaft 21. The first nut 24 is rotatably connected to the swing member 31. The swing member 31 restricts the first nut 24 to rotate synchronously with the drive shaft 21. The drive shaft 21 drives the first nut 24 to slide axially to drive the swing member 31 to rotate. The first thread 211 on the surface of the drive shaft 21 and the first nut 24 cooperate to accurately convert the rotational motion of the drive shaft 21 into the axial linear motion of the first nut 24. In addition, the axial sliding of the first nut 24 will drive the swing member 31 to rotate around its hinge point. This transmission method can achieve relatively accurate displacement control, thereby accurately adjusting the rotation angle of the swing member 31, and finally achieving precise adjustment of the sliding distance of the adjusting toothed plate 14 and the opening of the screen plate 13, meeting the strict requirements of different material screening for the opening of the screen plate 13.

[0033] like Figure 2As shown, the swing member 31 in this embodiment includes two mounting plates 311. The two ends of the first nut 24 are rotatably connected to the two mounting plates 311 respectively. The first nut 24 is provided with a threaded hole for the drive shaft 21 to pass through. The threaded hole is located between the two mounting plates 311. The rotation plane of the drive shaft 21 is perpendicular to the rotation plane of the first nut 24. The two mounting plates 311 support and connect the first nut 24 from both ends to form a relatively stable structural system. This can effectively limit the rotation of the first nut 24 with the drive shaft 21, ensuring that the rotation of the drive shaft 21 can be converted into the linear motion of the first nut 24, making the power transmission more stable.

[0034] like Figure 3 As shown, in this embodiment, a first limiting member 22 and a second limiting member 23 are fixedly installed on the frame 1. The first limiting member 22 has a shaft hole through which the drive shaft 21 passes, and the first limiting member 22 is rotatably engaged with the shaft hole. A stop 212 is provided on the outer periphery of the drive shaft 21. The second limiting member 23 is engaged with the stop 212 to limit the axial movement of the drive shaft 21. The first limiting member 22 is fixed on the frame 1, and the drive shaft 21 is rotatably engaged through the shaft hole of the first limiting member 22. That is, the first limiting member 22 can keep the axial position of the drive shaft 21 stable during rotation, so as to achieve radial limiting of the drive shaft 21. The stop 212 and the second limiting member 23 form an axial limiting to prevent the drive shaft 21 from axially moving. The first limiting member 22 and the second limiting member 23 respectively form radial and axial limiting of the drive shaft 21 to keep the rotation of the drive shaft 21 stable and reliable.

[0035] like Figure 3 and Figure 6 As shown, in this embodiment, the frame 1 includes side plates 12 on both sides of the frame 1. The power input end 214 of the drive shaft 21 passes through the side plate 12 and is rotatably connected to the side plate 12. The second limiting member 23 is fixed to the side of the side plate 12 facing the frame 1, and a limiting gap is formed between the second limiting member 23 and the side plate 12. The stop block 212 is restricted within the limiting gap. The surface of the power output end of the drive shaft 21 is provided with a second thread 215. The drive shaft 21 is equipped with a locking nut 213. The locking nut 213 is tightened on the side of the side plate 12 facing away from the frame 1 to limit the rotation of the drive shaft 21. When the user needs to adjust the opening of the screen plate 13, first remove the locking nut 213 from the power input end 214 of the drive shaft 21 so that the drive shaft 21 can rotate freely. Then, by installing the power source, the power source is connected to the power input end 214 of the drive shaft 21. After the power source is started, it drives the drive shaft 21 to rotate. The first nut 24 moves along the axial direction of the drive shaft 21 under the action of the rotation of the drive shaft 21. The movement of the first nut 24 drives the swing member 31 to rotate. The swing member 31 drives the connecting rod 32 to pull the adjusting tooth plate 14, thereby realizing the adjustment of the opening of the screen plate 13.

[0036] Example 2:

[0037] This embodiment illustrates a harvester, including a vibrating screen, wherein the vibrating screen is an adjustable-opening vibrating screen as described in Embodiment 1 above.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A vibrating screen with adjustable opening, comprising a frame, wherein a plurality of rotatably connected screen plates are spaced apart on the frame, and an adjusting toothed plate is slidably connected to the frame, the adjusting toothed plate slidingly driving the screen plates to rotate to adjust the opening of the screen plates, characterized in that, The frame is equipped with a drive mechanism and a transmission mechanism. The drive mechanism includes a drive shaft mounted on the outer periphery of the frame. The power input end of the drive shaft protrudes from the side wall of the frame. The transmission mechanism includes a connecting rod and a swing member hinged to the frame. The power output end of the drive shaft is connected to the swing member. The two ends of the connecting rod are respectively hinged to the swing member and the adjusting gear plate. The rotation of the drive shaft drives the swing member to rotate, and the swing member drives the adjusting gear plate to slide through the connecting rod.

2. The adjustable opening vibrating screen according to claim 1, characterized in that, The power output end of the drive shaft is threaded, and the end of the swing member is provided with a first nut that is threaded with the drive shaft. The first nut is rotatably connected to the swing member, and the swing member restricts the first nut from rotating synchronously with the drive shaft. The drive shaft drives the first nut to slide axially to drive the swing member to rotate.

3. The vibrating screen with adjustable opening according to claim 2, characterized in that, The swing component includes two mounting plates. The two ends of the first nut are rotatably connected to the two mounting plates respectively. The first nut is provided with a threaded hole for the drive shaft to pass through, and the threaded hole is located between the two mounting plates.

4. The adjustable opening vibrating screen according to claim 2, characterized in that, The rotation plane of the drive shaft is perpendicular to the rotation plane of the first nut.

5. The vibrating screen with adjustable opening according to claim 1, characterized in that, The frame is fixedly installed with a first limiting member and a second limiting member. The first limiting member has a shaft hole for the drive shaft to pass through. The first limiting member is rotatably engaged with the shaft hole. A stop is provided on the outer periphery of the drive shaft. The second limiting member is engaged with the stop to limit the axial movement of the drive shaft.

6. A vibrating screen with adjustable opening according to claim 5, characterized in that, The frame includes side plates on both sides of the frame. The power input end of the drive shaft passes through the side plate and is rotatably connected to the side plate. The second limiting member is fixed to the side of the side plate facing the frame. A limiting gap is formed between the second limiting member and the side plate. The stop block is restricted within the limiting gap.

7. The vibrating screen with adjustable opening according to claim 1, characterized in that, The frame includes side plates on both sides of the frame. The surface of the power input end of the drive shaft is threaded. The drive shaft is equipped with a locking nut. The locking nut is tightened on the side plate facing away from the frame to restrict the rotation of the drive shaft.

8. A vibrating screen with adjustable opening according to claim 1, characterized in that, The bottom of the adjusting toothed plate is provided with several grooves for the screen plates to be embedded, and the length direction of the adjusting toothed plate is parallel to the direction in which the screen plates are arranged at intervals.

9. A harvester, comprising a vibrating screen, characterized in that, The vibrating screen is an adjustable opening vibrating screen as described in any one of claims 1 to 8.

Images