Raspberry threshing machine

Abstract

The utility model discloses a raspberry thresher, and relates to the technical field of raspberry threshing equipment, the raspberry thresher comprises a fixed support frame, a branch support rolling shaft is fixedly connected above the fixed support frame, the inner side of the fixed support frame is fixedly connected with a transverse fixed frame, and the inner side of the transverse fixed frame is rotatably connected with a first chain wheel; branches are pulled at a constant speed through barbs, lossless efficient threshing is achieved in combination with elastic extrusion of comb teeth, the threshing rate is obviously higher than that of a manual mode, the vibration motor drives the perforated screening plate to conduct high-frequency vibration screening, the sieve plate with the changeable aperture is matched with different fruit sizes, and transverse airflow blowing is combined with the impurity removal fan. Efficient separation of fruits from crushed leaves and dust is achieved, the cleanliness is greatly improved, a single driving motor is in linkage with a barbed chain wheel and an impurity removal fan through a multi-stage belt wheel set, energy consumption is reduced, and meanwhile efficient cooperation of multiple modules is achieved, and integrated operation of threshing, sorting and impurity removal processes is considered.

Description

Technical Field

[0001] This utility model relates to the technical field of raspberry threshing equipment, specifically a raspberry threshing machine. Background Technology

[0002] Raspberries grow on the edges of mixed forests, thickets, or wastelands in mountainous areas at altitudes of 500-2000 meters. They prefer warm and humid conditions and sunlight. They are not particular about soil requirements and are highly adaptable, but they grow best in fertile, well-drained, slightly acidic soil with strong water and fertilizer retention. Currently, the threshing of raspberries is mostly done manually.

[0003] Research indicates that traditional manual threshing relies on hand-rubbing or beating branches, which is slow, repetitive, and has a very low daily processing capacity, failing to meet the needs of large-scale harvesting. This is especially problematic during peak fruit ripening periods, which can lead to raw material accumulation and loss. Furthermore, manual threshing requires additional screening and blowing, but relying on manual picking or simple sieves is insufficient to effectively remove small branches, dust, and other impurities, resulting in a high contamination rate in the finished product and requiring additional cleaning costs for subsequent processing. Therefore, a raspberry threshing machine is proposed to address these issues. Summary of the Invention

[0004] The purpose of this utility model is to provide a raspberry threshing machine that can efficiently and stably thresh raspberries and automatically remove most of the impurities and dust from the raspberry fruits during the threshing process, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raspberry threshing machine, comprising a fixed support frame, a branch support roller fixedly connected above the fixed support frame, a horizontal fixed frame fixedly connected inside the fixed support frame, a first sprocket rotatably connected inside the horizontal fixed frame, a first fixed rotating shaft seat fixedly connected above the fixed support frame, a second sprocket and a first pulley fixedly connected to both ends of the rotating shaft of the first fixed rotating shaft seat, a barbed sprocket meshing with the outer sides of the first sprocket and the second sprocket, and a second fixed rotating shaft seat fixedly connected inside the fixed support frame, with both ends of the rotating shaft of the second fixed rotating shaft seat fixed... The system is connected to a second pulley and a third pulley. A sixth pulley is fixedly connected to the inner side of the shaft of the second fixed rotating shaft seat. A drive motor is fixedly connected to the inner side of the fixed support frame. A fourth pulley is fixedly connected to the rotating shaft of the drive motor. A cleaning fan is fixedly connected to the inner side of the fixed support frame. A fifth pulley is fixedly connected to the central rotating shaft of the cleaning fan. A removable top cover is provided on the top of the fixed support frame. An inner fixed frame is fixedly connected to the top of the fixed support frame near the first sprocket. A rubber threshing comb is fixedly connected to the outlet of the inner fixed frame. A receiving hopper is fixedly connected to the inner side of the fixed support frame below the first sprocket.

[0006] The detachable top cover includes a central branch baffle and two sets of branch guide plates.

[0007] Furthermore, a receiving box is fixedly connected to the inner side of the fixed support frame below the receiving hopper. Four sets of positioning holes are opened on the top of the receiving box. An open screen plate is set on the top of the receiving box. Four sets of positioning columns that are adapted to the positioning holes are fixedly connected below the open screen plate. Supporting springs are sleeved on the outside of the positioning columns. A vibration motor is fixedly connected below the open screen plate.

[0008] Furthermore, the inner side of the barbed sprocket meshes with the first sprocket and the second sprocket, and the outer side of the barbed sprocket is provided with multiple sets of protruding barbs.

[0009] Furthermore, the first pulley and the second pulley are provided with matching belts on their outer sides, so that the first pulley and the second pulley are connected for transmission.

[0010] Furthermore, the outer sides of the third and fourth pulleys are provided with belts that are compatible with them, so that the third and fourth pulleys are connected for transmission.

[0011] Furthermore, the fifth and sixth pulleys are provided with matching belts on their outer sides, enabling the fifth and sixth pulleys to be connected in a transmission manner.

[0012] Furthermore, the barbs protruding above the barbed sprocket pass through the internal gap below the rubber threshing comb.

[0013] Furthermore, the inner side of the perforated sieve plate is provided with holes that are adapted to the size of the fruit.

[0014] Furthermore, the positioning post is slightly shorter than the depth of the positioning hole, and the upper end of the support spring is fixedly connected to the lower part of the perforated screening plate.

[0015] Furthermore, the outlet height of the impurity removal fan is located between the outlet below the receiving hopper and the top of the perforated screening plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The design of the barbed sprocket and rubber threshing comb in this utility model allows the branches to move at a uniform speed by being pulled by the barbs. Combined with the elastic squeezing action of the rubber threshing comb, the raspberries can be efficiently peeled without damaging the fruit. Compared with manual threshing, the threshing rate is significantly improved. The central branch baffle applies continuous downward pressure to the branches to prevent deviation or jumping during the conveying process, ensuring that the threshing process is stable and controllable.

[0018] 2. In this utility model, the perforated sieve plate is driven by a vibrating motor to vibrate at high frequency. Combined with the sieve plate design with replaceable aperture, it can accurately sieve fruits of different sizes and improve sorting adaptability. The airflow of the impurity removal fan sweeps horizontally and works in conjunction with the vibrating sieve to achieve rapid separation of light broken leaves, dust and other debris from the fruits, significantly improving the cleanliness of the fruits and reducing the amount of subsequent manual sorting work.

[0019] 3. In this utility model, a single drive motor is used to link the barbed sprocket and the impurity removal fan, and the pulley group is used to realize the synchronous operation of multiple mechanisms, which greatly simplifies the transmission structure, reduces energy consumption and maintenance costs, and at the same time ensures the high efficiency of the collaborative operation of each functional module. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a raspberry threshing machine.

[0021] Figure 2 This is a schematic diagram of a raspberry threshing machine after the removable top cover has been removed.

[0022] Figure 3 This is a schematic diagram of the internal transmission structure of a raspberry thresher;

[0023] Figure 4 This is a schematic diagram of the receiving box and the perforated screening plate involved.

[0024] In the diagram: 1. Fixed support frame; 2. Branch support roller; 3. Horizontal fixed frame; 4. First sprocket; 5. First fixed shaft seat; 6. Second sprocket; 7. First pulley; 8. Barbed sprocket; 9. Second fixed shaft seat; 10. Second pulley; 11. Third pulley; 12. Drive motor; 13. Fourth pulley; 14. Impurity removal fan; 15. Fifth pulley; 16. Sixth pulley; 17. Removable top cover; 171. Central branch baffle; 172. Branch guide plate; 18. Receiving box; 19. Positioning hole; 20. Perforated screening plate; 21. Positioning column; 22. Support spring; 23. Vibrating motor; 24. Inner fixed frame; 25. Rubber threshing comb; 26. Receiving hopper. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0027] Reference Figures 1 to 4In this embodiment of the present invention, a raspberry threshing machine includes a fixed support frame 1, a branch support roller 2 fixedly connected above the fixed support frame 1, a horizontal fixed frame 3 fixedly connected inside the fixed support frame 1, a first sprocket 4 rotatably connected inside the horizontal fixed frame 3, a first fixed rotating shaft seat 5 fixedly connected above the fixed support frame 1, a second sprocket 6 and a first belt pulley 7 fixedly connected to both ends of the rotating shaft of the first fixed rotating shaft seat 5, a barbed sprocket 8 meshing with the outer sides of the first sprocket 4 and the second sprocket 6, and a barbed sprocket 8 meshing with the inner side of the first sprocket 4. Sprocket 4 and second sprocket 6 mesh. The barbed sprocket 8 has multiple sets of protruding barbs on its outer side to facilitate the movement of branches. A second fixed shaft seat 9 is fixedly connected to the inner side of the fixed support frame 1. A second pulley 10 and a third pulley 11 are fixedly connected to both ends of the shaft of the second fixed shaft seat 9. A sixth pulley 16 is fixedly connected to the inner side of the shaft of the second fixed shaft seat 9. A matching belt is provided on the outer side of the first pulley 7 and the second pulley 10, enabling a transmission connection between the first pulley 7 and the second pulley 10. The fixed support frame 1... A drive motor 12 is fixedly connected to the inner side of the fixed support frame 1. A fourth pulley 13 is fixedly connected to the rotating shaft of the drive motor 12. A belt adapted to the third pulley 11 and the fourth pulley 13 is provided on the outer side of the third pulley 11 and the fourth pulley 13, so that the third pulley 11 and the fourth pulley 13 are connected in a transmission connection. A cleaning fan 14 is fixedly connected to the inner side of the fixed support frame 1. A fifth pulley 15 is fixedly connected to the central rotating shaft of the cleaning fan 14. A belt adapted to the fifth pulley 15 and the sixth pulley 16 is provided on the outer side of the fifth pulley 15 and the sixth pulley 16, so that the fifth pulley 15 and the sixth pulley 16 are connected in a transmission connection. 6. Transmission connection: With the above design, only the drive motor 12 needs to be started to drive the barbed sprocket 8 to rotate and the impurity removal fan 14 to blow air. A detachable top cover 17 is provided on the top of the fixed support frame 1. An inner fixed frame 24 is fixedly connected to the top of the fixed support frame 1 near the first sprocket 4. A rubber threshing comb 25 is fixedly connected to the outlet of the inner fixed frame 24. The barbs protruding from the top of the barbed sprocket 8 pass through the internal gap below the rubber threshing comb 25. A receiving hopper 26 is fixedly connected to the inner side of the fixed support frame 1 below the first sprocket 4.

[0028] By placing the end of a fruit-bearing branch on the branch support roller 2, the front end is inserted into the barb gap of the barbed sprocket 8 and locked in place. The drive motor 12 drives the sixth pulley 16 to rotate synchronously through the fourth pulley 13, the third pulley 11, and the second fixed rotating shaft seat 9. This drives the barbed sprocket 8 to rotate counterclockwise through the first pulley 7 and the second sprocket 6. At the same time, the sixth pulley 16 drives the impurity removal fan 14 to operate through the fifth pulley 15. The rotating barbed sprocket 8 pulls the branch horizontally through the barbs. When the branch passes under the rubber threshing comb 25, the elastic comb teeth of the rubber threshing comb 25 apply a vertical downward squeezing force to the branch, forcibly peeling the fruit and small branches and leaves from the surface of the branch. The detached material is guided to the collection area below through the receiving hopper 26.

[0029] The removable top cover 17 includes a central branch baffle 171 and two sets of branch guide plates 172;

[0030] The central branch baffle 171 is vertically installed above the barbed sprocket 8. By applying downward pressure, it ensures that the branches are always in close contact with the barbed sprocket 8, preventing the branches from jumping or shifting during the conveying process. Two sets of branch guide plates 172 are arranged in a trumpet shape on both sides of the detachable top cover 17, guiding the bare branches to be discharged along a predetermined trajectory after threshing.

[0031] A receiving box 18 is fixedly connected to the inner side of the fixed support frame 1 below the receiving hopper 26. Four sets of positioning holes 19 are opened above the receiving box 18. An open sieve plate 20 is set above the receiving box 18. The inner side of the open sieve plate 20 has holes that are adapted to the size of the fruit. The version of the open sieve plate 20 with holes of appropriate size can be selected according to the size of the fruit. Four sets of positioning posts 21 that are adapted to the positioning holes 19 are fixedly connected below the open sieve plate 20. Support springs 22 are sleeved on the outer side of the positioning posts 21. A vibration motor 23 is fixedly connected below the open sieve plate 20. The positioning posts 21 are slightly shorter than the depth of the positioning holes 19. The upper end of the support spring 22 is fixedly connected to the lower part of the open sieve plate 20. The height of the air outlet of the impurity removal fan 14 is between the lower outlet of the receiving hopper 26 and the upper part of the open sieve plate 20.

[0032] After the detached mixed material falls into the perforated sieve plate 20 through the receiving hopper 26, the vibrating motor 23 generates high-frequency micro-vibration, which drives the perforated sieve plate 20 to perform three-dimensional vibration sieving under the elastic support of the support spring 22. Fruits that meet the aperture size pass through the sieve holes and fall into the bottom of the receiving box 18. At the same time, the airflow generated by the impurity removal fan 14 blows horizontally into the height range between the outlet of the receiving hopper 26 and the perforated sieve plate 20, separating light broken leaves, dust and other impurities from the perforated sieve plate 20.

[0033] The working principle of this utility model is as follows: Before use, the drive motor 12 is started. The drive motor 12 drives the third pulley 11 to rotate through the fourth pulley 13 and the belt. The third pulley 11 drives the shaft of the second fixed shaft seat 9 to rotate synchronously. The sixth pulley 16 on the shaft drives the fifth pulley 15 through the belt to drive the impurity removal fan 14 to run. At the same time, the second pulley 10 on the shaft drives the first pulley 7 to rotate through the belt. The first pulley 7 drives the second sprocket 6 to rotate through the shaft of the first fixed shaft seat 5, thereby driving the barbed sprocket 8 that meshes with the first sprocket 4 and the second sprocket 6 to rotate counterclockwise.

[0034] After the drive motor 12 starts, the end of the branch with raspberries is placed on the branch support roller 2, and the front end is inserted into the barb gap of the barbed sprocket 8. When the barbed sprocket 8 rotates, the barbs hold the branch and pull it to move horizontally. During the movement, the branch is pressed by the central branch baffle 171 of the removable cover 17 (to further ensure the stability of the branch during the movement, the central branch baffle 171 can form a V-shaped guide surface on the lower surface to guide the main branches of the branch), ensuring close contact with the barbed sprocket 8. When the branch passes under the rubber threshing comb 25, the barbs pass through the gaps in the rubber threshing comb 25, and the comb teeth apply a continuous downward squeezing force to the branch, forcibly peeling off the fruit and small branches and leaves. The peeled material falls below through the receiving hopper 26.

[0035] The detached mixed material enters the surface of the perforated sieve plate 20 through the receiving hopper 26. After the vibration motor 23 is started, it drives the perforated sieve plate 20 to vibrate at high frequency under the elastic support of the support spring 22. Fruits that meet the aperture size pass through the sieve holes and fall into the bottom of the receiving box 18. At the same time, the airflow generated by the impurity removal fan 14 is blown horizontally from the height between the outlet of the receiving hopper 26 and the perforated sieve plate 20, blowing away light broken leaves, dust and other impurities from the sieve surface to achieve impurity removal.

[0036] After threshing, the bare branches continue to be pulled to the end by the barbed sprocket 8, and guided by the branch guide plate 172 of the removable cover 17, and discharged from the device in a predetermined direction. Finally, the cleaned raspberry fruits are concentrated in the receiving box 18, and impurities are separated to the external collection area after being screened by vibration and air removal.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A raspberry threshing machine, characterized in that: The system includes a fixed support frame (1), a tree branch support roller (2) fixedly connected above the fixed support frame (1), a horizontal fixed frame (3) fixedly connected inside the fixed support frame (1), a first sprocket (4) rotatably connected inside the horizontal fixed frame (3), a first fixed rotating shaft seat (5) fixedly connected above the fixed support frame (1), a second sprocket (6) and a first pulley (7) fixedly connected to the two ends of the rotating shaft of the first fixed rotating shaft seat (5), a barbed sprocket (8) meshing with the outer sides of the first sprocket (4) and the second sprocket (6), a second fixed rotating shaft seat (9) fixedly connected inside the fixed support frame (1), and a second pulley (10) and a third pulley (11) fixedly connected to the two ends of the rotating shaft of the second fixed rotating shaft seat (9). The second fixed rotating shaft seat (9) is fixedly connected to the inner side of the rotating shaft of the sixth pulley (16). The fixed support frame (1) is fixedly connected to the inner side of the drive motor (12). The rotating shaft of the drive motor (12) is fixedly connected to the fourth pulley (13). The fixed support frame (1) is fixedly connected to the inner side of the impurity removal fan (14). The central rotating shaft of the impurity removal fan (14) is fixedly connected to the fifth pulley (15). The fixed support frame (11) is provided with a detachable top cover (17). The fixed support frame (1) is fixedly connected to the inner fixed frame (1) near the first sprocket (4). The inner fixed frame (24) is fixedly connected to the outlet of the rubber threshing comb (25). The fixed support frame (1) is fixedly connected to the receiving hopper (26) below the first sprocket (4). The removable top cover (17) includes a central branch baffle (171) and two sets of branch guide plates (172).

2. The raspberry threshing machine according to claim 1, characterized in that: The receiving box (18) is fixedly connected to the inner side of the fixed support frame (1) below the receiving hopper (26). Four sets of positioning holes (19) are opened on the upper part of the receiving box (18). An open screen plate (20) is set on the upper part of the receiving box (18). Four sets of positioning columns (21) that are compatible with the positioning holes (19) are fixedly connected below the open screen plate (20). Support springs (22) are sleeved on the outer side of the positioning columns (21). A vibration motor (23) is fixedly connected below the open screen plate (20).

3. The raspberry thresher according to claim 1, characterized in that: The barbed sprocket (8) engages with the first sprocket (4) and the second sprocket (6) on its inner side, and the barbed sprocket (8) is provided with multiple sets of protruding barbs on its outer side.

4. A raspberry threshing machine according to claim 1, characterized in that: The first pulley (7) and the second pulley (10) are provided with belts that are compatible with them, so that the first pulley (7) and the second pulley (10) are connected in a transmission.

5. A raspberry threshing machine according to claim 1, characterized in that: The third pulley (11) and the fourth pulley (13) are provided with belts that are compatible with them, so that the third pulley (11) and the fourth pulley (13) are connected in a transmission.

6. A raspberry threshing machine according to claim 1, characterized in that: The fifth pulley (15) and the sixth pulley (16) are provided with belts that are compatible with them, so that the fifth pulley (15) and the sixth pulley (16) are connected in a transmission.

7. A raspberry threshing machine according to claim 1, characterized in that: The barbs protruding above the barbed sprocket (8) pass through the internal gap below the rubber threshing comb (25).

8. A raspberry threshing machine according to claim 2, characterized in that: The inner side of the perforated sieve plate (20) has holes that are adapted to the size of the fruit.

9. A raspberry threshing machine according to claim 2, characterized in that: The positioning post (21) is shorter than the depth of the positioning hole (19), and the upper end of the support spring (22) is fixedly connected to the lower part of the perforated sieve plate (20).

10. A raspberry threshing machine according to claim 2, characterized in that: The outlet height of the impurity removal fan (14) is located between the outlet below the receiving hopper (26) and the top of the perforated screen plate (20).

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