Handheld rice and wheat threshing machine

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a handheld rice and wheat threshing machine which comprises a machine frame, a threshing roller is rotationally installed in the machine frame, an elastic piece is installed on the threshing roller, a first auxiliary plate is correspondingly installed at the position of the threshing roller, and the first auxiliary plate is of an arc-shaped structure and fixed in the machine frame. The elastic piece is driven by the threshing roller to be matched with the first auxiliary plate to conduct primary threshing on rice and wheat; a twisting roller is further movably installed in the machine frame and located below the threshing roller, a second auxiliary plate is correspondingly installed at the position of the twisting roller and fixed in the machine frame, and the twisting roller and the second auxiliary plate are matched to conduct secondary threshing on rice and wheat. A threshing roller is arranged in the machine frame, an elastic piece is installed on the threshing roller, the elastic piece is matched with the first auxiliary plate to achieve primary threshing of rice and wheat, a twisting roller is further arranged in the machine frame, and the twisting roller is matched with the second auxiliary plate to achieve secondary threshing of the rice and wheat.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and more specifically, to a handheld rice and wheat thresher. Background Art

[0002] With the advancement of agricultural modernization, rice threshers are gradually being replaced by combine harvesters. However, for some mountainous areas and areas with smaller planting areas, it may not be suitable for combine harvesters to be involved. Some small agricultural equipment is still needed to improve the efficiency of grain harvesting, such as handheld rice and wheat threshers. However, existing handheld rice and wheat threshers generally use rollers and pressing plates to squeeze rice and wheat grains during threshing to achieve the threshing process. During this process, rice and wheat grains are easily damaged, making it difficult to store rice and wheat grains.

[0003] Therefore, how to make the handheld rice and wheat thresher ensure that the rice and wheat grains are intact when threshing becomes a problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to provide a handheld rice and wheat thresher to solve the problems existing in the prior art. A threshing roller is arranged in a frame and an elastic member is installed on the threshing roller. The elastic member cooperates with a first auxiliary plate to realize the initial threshing of rice and wheat. A rubbing roller is also arranged in the frame. The rubbing roller cooperates with a second auxiliary plate to realize the secondary threshing of rice and wheat.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a handheld rice and wheat thresher, comprising: a frame, a threshing roller rotatably installed in the frame, an elastic member installed on the threshing roller, a first auxiliary plate corresponding to the position of the threshing roller, the first auxiliary plate having an arc-shaped structure fixed inside the frame, the elastic member cooperates with the first auxiliary plate to perform initial threshing of rice and wheat under the drive of the threshing roller; a rubbing roller is also movably installed in the frame, the rubbing roller is located below the threshing roller, a second auxiliary plate is correspondingly installed at the position of the rubbing roller, the second auxiliary plate is fixed in the frame, and the rubbing roller cooperates with the second auxiliary plate to perform secondary threshing of rice and wheat.

[0006] According to a handheld rice and wheat thresher provided by the utility model, the threshing roller includes a rotating roller, a plurality of threshing rods and the elastic member, one end of the rotating roller passes through the frame and is connected to the output end of the first motor, the first motor is fixedly mounted on the outside of the frame, the other end of the rotating roller is rotatably connected to the inner wall of the frame, the plurality of threshing rods are in a curved arc structure and are evenly distributed on the surface of the rotating roller, the elastic member is located on the top of the threshing rod, and the elastic member is an extrusion head for extruding rice and wheat grains.

[0007] According to the handheld rice and wheat thresher provided by the utility model, a plurality of first protrusions are provided on the surface of the first auxiliary plate, and the first protrusions cooperate with the extrusion head to realize the initial threshing of rice and wheat.

[0008] According to a handheld rice and wheat thresher provided by the utility model, the rubbing roller includes a movable roller, a plurality of second protrusions and a main shaft, the main shaft is fixed in the frame, the movable roller is sleeved on the surface of the main shaft and is slidably connected to the main shaft, a plurality of second protrusions are evenly distributed on the surface of the movable roller, one end of the movable roller passes through the frame and is connected to the output end of the second motor, and the second motor is fixedly mounted on the outside of the frame.

[0009] According to the handheld rice and wheat thresher provided by the utility model, a plurality of third protrusions are provided on the surface of the second auxiliary plate, and the third protrusions cooperate with the second protrusions to realize secondary threshing of rice and wheat.

[0010] According to the handheld rice and wheat thresher provided by the utility model, an arc-shaped plate is connected between the first auxiliary plate and the second auxiliary plate.

[0011] According to the handheld rice and wheat thresher provided by the utility model, a feeding port is provided on the top of the frame, and a discharging port is provided on the bottom of the frame.

[0012] According to the handheld rice and wheat thresher provided by the utility model, a supporting plate is provided at the feeding port, and an air blowing port is provided at the discharging port.

[0013] The utility model discloses the following technical effects:

[0014] The device has a threshing roller rotatably installed in a frame, an elastic member is installed on the threshing roller, and a first auxiliary plate is fixedly installed at a corresponding position of the threshing roller. After the rice and wheat enter the frame, they enter between the threshing roller and the first auxiliary plate. During the rotation of the threshing roller, the elastic member and the first auxiliary plate squeeze the rice and wheat grains, thereby realizing the initial threshing of the rice and wheat grains. Due to the provision of the elastic member, the rice and wheat grains can be prevented from being damaged. A rubbing roller is movably installed in the frame, and a second auxiliary plate is fixedly installed at the position of the rubbing roller. After being squeezed by the separation roller and the first auxiliary plate, the rice and wheat grains enter between the rubbing roller and the second auxiliary plate. The secondary threshing of the rice and wheat is realized through the friction of the rubbing roller, thereby ensuring the integrity of the rice and wheat grains and fully separating the rice and wheat grains from the rice and wheat husks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0018] Figure 3 It is a structural diagram of the other side of the utility model as a whole;

[0019] Figure 4 This is a schematic diagram of the overall internal structure of the utility model;

[0020] Among them, 1. frame; 2. threshing roller; 201. rotating roller; 202. threshing rod; 203. extrusion head; 3. first auxiliary plate; 301. first protrusion; 4. first motor; 5. arc plate; 6. rubbing roller; 601. second protrusion; 602. movable roller; 603. main shaft; 7. second auxiliary plate; 701. third protrusion; 8. second motor; 9. air outlet; 10. discharge port; 11. support plate; 12. feeding port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figures 1-4As shown, the utility model provides a handheld rice and wheat thresher, comprising: a frame 1, a threshing roller 2 is rotatably installed in the frame 1, an elastic member is installed on the threshing roller 2, a first auxiliary plate 3 is correspondingly installed at the position of the threshing roller 2, the first auxiliary plate 3 is an arc-shaped structure fixed inside the frame 1, and the elastic member cooperates with the first auxiliary plate 3 under the drive of the threshing roller 2 to perform the initial threshing of rice and wheat; a rubbing roller 6 is also movably installed in the frame 1, the rubbing roller 6 is located below the threshing roller 2, a second auxiliary plate 7 is correspondingly installed at the position of the rubbing roller 6, the second auxiliary plate 7 is fixed in the frame 1, and the rubbing roller 6 and the second auxiliary plate 7 cooperate to perform the secondary threshing of rice and wheat.

[0024] After the rice and wheat enter the frame 1, they are located between the threshing roller 2 and the first auxiliary plate 3. During the rotation of the threshing roller 2, the elastic member squeezes the rice and wheat grains. Since the elastic member is elastic, it can avoid damage to the rice and wheat grains to the greatest extent. After the initial threshing, the rice and wheat grains may not be completely separated from the rice and wheat husks. At this time, the rice and wheat grains enter between the rubbing roller 6 and the second auxiliary plate 7. The rubbing roller 6 rubs the rice and wheat grains on the second auxiliary plate 7 to achieve secondary separation of the rice and wheat grains, completing the separation of the rice and wheat grains from the rice and wheat husks.

[0025] There is a feeding port 12 at the top of the frame 1, and rice and wheat enter the frame 1 through the feeding port 12 for threshing. A support plate 11 is fixedly installed at the feeding port 12. The support plate 11 supports the rice and wheat, reducing the weight of the rice and wheat held by the operator's hands. At the same time, it also supports the operator's hands, making it convenient for the operator to rest his wrists and avoid fatigue.

[0026] A first auxiliary plate 3 is fixedly installed below the feeding port 12. The first auxiliary plate 3 has an arc-shaped structure, which can increase the contact area with the threshing roller 2. A plurality of first protrusions 301 are provided on the first auxiliary plate 3. The first protrusions 301 cooperate with the elastic member to realize the extrusion of rice and wheat grains.

[0027] The threshing roller 2 includes a roller 201, a plurality of threshing rods 202 and an elastic member. One end of the roller 201 is rotatably connected to the inner wall of the frame 1, and the other end passes through the frame 1 and is connected to the output end of the first motor 4. The first motor 4 is fixedly mounted on the outside of the frame 1. The threshing rod 202 is a curved arc structure and is evenly fixed on the surface of the roller 201. The curved arc structure can increase the contact area with the rice and wheat, and at the same time facilitates the separation of the rice and wheat piled together to achieve full squeezing of the rice and wheat grains. The elastic member is fixed on the threshing rod 202, and the elastic member is an extrusion head 203, which is semi-circular. The spherical structure, in this embodiment, the extrusion head 203 is made of non-toxic rubber and is elastic, avoiding rigid contact with the first auxiliary plate 3 and the first protrusion 301, and can prevent the rice and wheat grains from being damaged; the first motor 4 is started, the threshing roller 2 rotates, and the rice and wheat enter between the threshing roller 2 and the first auxiliary plate 3, and the threshing rod 202 drives the extrusion head 203 to rotate. The threshing rod 202 pushes away the stacked rice and wheat, and the extrusion head 203 rotates and squeezes the rice and wheat grains, so that the rice and wheat grains are threshed from the rice and wheat straw, and the initial threshing of the rice and wheat grains is completed in the process of rotation and extrusion.

[0028] The rubbing roller 6 includes a movable roller 602, several second protrusions 601 and a main shaft 603. The main shaft 603 is fixed in the frame 1. The movable roller 602 is sleeved on the main shaft 603 and is slidably connected to the main shaft 603. One end of the movable roller 602 passes through the frame 1 and is connected to the output end of the second motor 8. The second motor 8 is fixedly installed on the outside of the frame 1. The second motor 8 is a telescopic motor that can push the movable roller 602 to reciprocate horizontally along the main shaft 603. Several second protrusions 601 are evenly fixed on the surface of the movable roller 602.

[0029] A plurality of third protrusions 701 are fixed on the second auxiliary plate 7 . The third protrusions 701 are in the shape of long strips and can block the rice and wheat grains so that the rice and wheat grains are rubbed between the second protrusions 601 and the third protrusions 701 .

[0030] After the initial threshing, there are rice grains and rice husks that are not fully separated in the rice grains. The rice grains enter between the rubbing roller 6 and the second auxiliary plate 7. The second motor 8 is started to push the movable roller 602 to move back and forth along the main shaft 603, so that the second protrusion 601 cooperates with the third protrusion 701 to rub the rice grains, so that the rice grains and rice husks are fully separated. Compared with the roller threshing in the prior art, the rice grains in this device complete the secondary threshing process by relying on the rubbing between the second protrusion 601 and the third protrusion 701, which can better ensure the integrity of the rice grains.

[0031] An arc plate 5 is connected between the first auxiliary plate 3 and the second auxiliary plate 7 . The arc plate 5 is arranged in an arc shape so that the rice and wheat grains that have undergone the initial threshing can smoothly enter between the rubbing roller 6 and the second auxiliary plate 7 .

[0032] A blowing port 9 is provided under the frame 1, and a blower is connected to the blowing port 9 to provide wind into the frame 1. Under the action of the wind, the light rice and wheat husks are blown to the side away from the blowing port 9, and the heavy rice and wheat grains remain on the side close to the blowing port 9 and are discharged from the frame 1 through the discharge port 10. Tools are used to receive the rice and wheat grains on the side of the discharge port 10 close to the blowing port 9, and the rice and wheat husks are received on the side away from the blowing port 9.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A handheld rice and wheat thresher, characterized in that: include: A frame (1), a threshing roller (2) is rotatably mounted in the frame (1), an elastic member is mounted on the threshing roller (2), a first auxiliary plate (3) is mounted corresponding to the position of the threshing roller (2), the first auxiliary plate (3) is fixed inside the frame (1) in an arc-shaped structure, and the elastic member cooperates with the first auxiliary plate (3) under the drive of the threshing roller (2) to perform initial threshing of rice and wheat; A rubbing roller (6) is also movably installed in the frame (1), and the rubbing roller (6) is located below the threshing roller (2). A second auxiliary plate (7) is installed corresponding to the position of the rubbing roller (6), and the second auxiliary plate (7) is fixed in the frame (1). The rubbing roller (6) and the second auxiliary plate (7) cooperate to perform secondary threshing of rice and wheat.

2. The handheld rice and wheat thresher according to claim 1, characterized in that: The threshing roller (2) comprises a roller (201), a plurality of threshing rods (202) and the elastic member, one end of the roller (201) passes through the frame (1) and is connected to the output end of the first motor (4), the first motor (4) is fixedly mounted on the outside of the frame (1), the other end of the roller (201) is rotatably connected to the inner wall of the frame (1), the plurality of threshing rods (202) are in a curved arc structure and are evenly distributed on the surface of the roller (201), the elastic member is located on the top of the threshing rod (202), and the elastic member is an extrusion head (203) for extruding rice and wheat grains.

3. The handheld rice and wheat thresher according to claim 2, characterized in that: The surface of the first auxiliary plate (3) is provided with a plurality of first protrusions (301), and the first protrusions (301) cooperate with the extrusion head (203) to achieve the initial threshing of rice and wheat.

4. The handheld rice and wheat thresher according to claim 1, characterized in that: The rubbing roller (6) comprises a movable roller (602), a plurality of second protrusions (601) and a main shaft (603); the main shaft (603) is fixed in the frame (1); the movable roller (602) is sleeved on the surface of the main shaft (603) and is slidably connected to the main shaft (603); the plurality of second protrusions (601) are evenly distributed on the surface of the movable roller (602); one end of the movable roller (602) passes through the frame (1) and is connected to the output end of the second motor (8); and the second motor (8) is fixedly mounted on the outside of the frame (1).

5. The handheld rice and wheat thresher according to claim 4, characterized in that: The surface of the second auxiliary plate (7) is provided with a plurality of third protrusions (701), and the third protrusions (701) cooperate with the second protrusions (601) to achieve secondary threshing of rice and wheat.

6. The handheld rice and wheat thresher according to claim 1, characterized in that: An arc-shaped plate (5) is connected between the first auxiliary plate (3) and the second auxiliary plate (7).

7. The handheld rice and wheat thresher according to claim 1, characterized in that: The top of the frame (1) is provided with a feeding port (12), and the bottom of the frame (1) is provided with a discharging port (10).

8. The handheld rice and wheat thresher according to claim 7, characterized in that: A support plate (11) is provided at the feeding port (12), and an air blowing port (9) is provided at the discharging port (10).

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