Alfalfa seed threshing device and using method thereof

Abstract

The invention discloses an alfalfa seed threshing device and a using method thereof, the alfalfa seed threshing device comprises an alfalfa seed threshing shell, a first movable alfalfa seed threshing plate and a second movable alfalfa seed threshing plate, and the right upper end of an inner cavity of the alfalfa seed threshing shell is movably connected with driving alfalfa seed crushing teeth. According to the alfalfa seed threshing device, the motor, the first elliptical wheel, the driving alfalfa seed crushing teeth and the driven alfalfa seed crushing teeth are arranged, alfalfa seeds to be threshed are put into the alfalfa seed threshing shell from the feeding opening, the motor is started, and the first elliptical wheel can be driven to rotate through the single-face tooth synchronous belt; the first elliptical wheel can drive the driving alfalfa seed crushing teeth to rotate through the single-face tooth synchronous belt while rotating, the driving alfalfa seed crushing teeth can drive the driven alfalfa seed crushing teeth to rotate while rotating, and therefore alfalfa seeds can be crushed.

Description

Technical Field

[0001] The invention relates to the technical field of alfalfa, in particular to an alfalfa seed threshing device and a use method thereof. Background Art

[0002] Alfalfa is a perennial herb of the genus Alfalfa in the legume family. It is rich in protein, minerals and vitamins, and has high yield, high quality and good palatability. It is currently the preferred legume forage in my country. Alfalfa seeds are wrapped with a hard seed coat, which makes the hardness rate of alfalfa high. In order to improve the germination rate of seeds, they should be shelled before sowing, that is, the pods are removed and the tiny seeds inside the pods are retained. However, the existing threshing methods are all done manually, which seriously increases people's labor. In addition, the threshed seeds must be screened and processed later, which further increases people's labor. For this reason, we propose an alfalfa seed threshing device. Summary of the invention

[0003] The object of the present invention is to provide an alfalfa seed threshing device and a use method thereof to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an alfalfa seed threshing device, comprising an alfalfa seed threshing shell, a first movable alfalfa seed threshing plate and a second movable alfalfa seed threshing plate, the upper right end of the inner cavity of the alfalfa seed threshing shell is movably connected with active alfalfa seed crushing teeth, the inner cavity of the alfalfa seed threshing shell and located on the left side of the active alfalfa seed crushing teeth are movably connected with driven alfalfa seed crushing teeth, the upper right end of the inner cavity of the alfalfa seed threshing shell is fixedly connected with a fixed alfalfa seed threshing plate, and the upper right end of the inner cavity of the alfalfa seed threshing shell is movably connected with a first elliptical wheel.

[0005] Preferably, the left end of the top of the alfalfa seed threshing shell is connected to an air outlet pipe, a one-way valve is provided on the inner surface of the air outlet pipe, a feed port is provided at the right end of the top of the alfalfa seed threshing shell, a first baffle plate is fixedly connected to the top of the inner cavity of the alfalfa seed threshing shell and located at a corresponding position of the feed port, and a second baffle plate is fixedly connected to the inner cavity of the alfalfa seed threshing shell and located below the driven alfalfa seed crushing teeth.

[0006] Preferably, a second discharge port is provided at the middle end of the bottom of the alfalfa seed threshing shell, supporting legs are fixedly connected around the bottom of the alfalfa seed threshing shell, a third spring is fixedly connected around the bottom of the inner cavity of the alfalfa seed threshing shell, a screen is fixedly connected to the top of the third spring, the right side of the screen is connected to the lower end of the right side of the inner cavity of the alfalfa seed threshing shell through a fluorocarbon rubber plate, and a first discharge port is provided at the connection between the alfalfa seed threshing shell and the screen.

[0007] Preferably, a first L-plate is fixedly connected to the left end of the inner cavity of the alfalfa seed threshing shell, an air inlet is opened at the left end of the inner surface of the first L-plate, a second L-plate is fixedly connected to the right end of the top of the first L-plate, a stator is fixedly connected to the inner side of the second L-plate, a first bevel gear is movably connected to the left end of the inner surface of the alfalfa seed threshing shell, a spoiler is fixedly connected to the left end of the outer surface of the first bevel gear, and a rotor is fixedly connected to the outer surface of the first bevel gear and located on the inner side of the stator.

[0008] Preferably, the lower left end of the inner cavity of the alfalfa seed threshing shell and the lower right end of the inner cavity of the alfalfa seed threshing shell are both movably connected to a second elliptical wheel, the two second elliptical wheels are connected by a single-sided toothed synchronous belt transmission, the left side of the alfalfa seed threshing shell is fixedly connected to a bracket, the inner surface of the bracket is movably connected to a second bevel gear, and the second bevel gear is meshingly connected to the first bevel gear.

[0009] Preferably, the upper end of the left side of the first L-plate and the upper end of the right side of the inner cavity of the alfalfa seed threshing shell are fixedly connected with a holder, the inner side of the holder is slidably connected with a polyimide fiber needle felt layer, the upper left end of the front side of the alfalfa seed threshing shell is movably connected with a movable door through a hinge, a handle is fixedly connected to the outer side of the movable door, the upper left end of the back side of the alfalfa seed threshing shell is fixedly connected with a battery box, the bottom of the inner cavity of the battery box is fixedly connected with a storage battery, and a charging socket is provided on the left side of the battery box.

[0010] Preferably, the upper end of the right side of the first L-plate is fixedly connected to a first connecting plate, the bottom of the first connecting plate is movably connected to a first knocking plate through a first spring, the right side of the first knocking plate is fixedly connected to a first movable alfalfa seed threshing plate, the lower end of the right side of the first L-plate is fixedly connected to a second connecting plate, the top of the second connecting plate is movably connected to a second knocking plate through a second spring, the right side of the second knocking plate is fixedly connected to a second movable alfalfa seed threshing plate, the bottom of the second knocking plate and the first connecting plate are both fixedly connected to a limiting cylinder, the top of the second connecting plate and the first knocking plate are both fixedly connected to a limiting rod, and the limiting rod is slidably connected to the inner cavity of the limiting cylinder.

[0011] Preferably, a motor is fixedly connected to the middle end of the back side of the alfalfa seed threshing shell, and the output shaft of the motor is connected to the first elliptical wheel and the second bevel gear through a single-sided toothed synchronous belt, and the first elliptical wheel is connected to the active alfalfa seed crushing teeth and the second elliptical wheel at the lower right end through a single-sided toothed synchronous belt.

[0012] A method for using an alfalfa seed threshing device comprises the following steps: A. Put the alfalfa seeds to be threshed into the alfalfa seed threshing shell from the feed inlet, and turn on the motor, which can drive the first elliptical wheel to rotate through the single-sided tooth synchronous belt. When the first elliptical wheel rotates, it will drive the active alfalfa seed crushing teeth to rotate through the single-sided tooth synchronous belt. When the active alfalfa seed crushing teeth rotate, they will drive the driven alfalfa seed crushing teeth to rotate, so that the alfalfa seeds can be crushed; B. When the first elliptical wheel rotates, the first movable alfalfa seed threshing plate and the second movable alfalfa seed threshing plate will continuously move up and down in cooperation with the first knocking plate, the first spring and the first connecting plate, and the second knocking plate, the second spring and the second connecting plate, so that the broken alfalfa seeds can be further threshed in cooperation with the fixed alfalfa seed threshing plate; C. When the first elliptical wheel rotates, it drives the second elliptical wheel at the lower right end to rotate through the single-sided toothed synchronous belt. When the second elliptical wheel at the lower right end rotates, it drives the second elliptical wheel at the lower left end to rotate synchronously through the single-sided toothed synchronous belt. Therefore, the screen can vibrate with the cooperation of the third spring, so that the threshed alfalfa seeds can be screened; D. When the motor rotates, it drives the second bevel gear to rotate through the single-sided tooth synchronous belt. When the second bevel gear rotates, it drives the first bevel gear to rotate. When the first bevel gear rotates, it drives the spoiler to rotate. With the cooperation of the air inlet, the dust generated during the crushing and screening process can be sucked into the cavity between the left side of the first L plate and the alfalfa seed threshing shell, and after being filtered by the polyimide fiber needle felt layer, the clean cavity is discharged from the air outlet pipe, thereby ensuring the hygiene of the working environment; E. The first bevel gear will drive the rotor to rotate while rotating, and with the cooperation of the stator, it will generate electrical energy and store the electrical energy in the battery, thereby achieving the purpose of self-generation and effectively reducing the consumption of municipal electricity.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a motor, a first elliptical wheel, active alfalfa seed crushing teeth and driven alfalfa seed crushing teeth. The alfalfa seeds to be threshed are put into the alfalfa seed threshing shell from the feed inlet, and the motor is turned on. The first elliptical wheel can be driven to rotate through a single-sided toothed synchronous belt. When the first elliptical wheel rotates, the active alfalfa seed crushing teeth can be driven to rotate through the single-sided toothed synchronous belt. When the active alfalfa seed crushing teeth rotate, the driven alfalfa seed crushing teeth can be driven to rotate, so that the alfalfa seeds can be crushed. A first spring, a second connecting plate, a second movable alfalfa seed threshing plate, a fixed alfalfa seed threshing plate, a first movable alfalfa seed threshing plate, a second spring, a first knocking plate, a second knocking plate and a first connecting plate are provided. The first elliptical wheel is rotated. At the same time, the first movable alfalfa seed threshing plate and the second movable alfalfa seed threshing plate will continuously move up and down with the cooperation of the first knocking plate, the first spring and the first connecting plate, and the second knocking plate, the second spring and the second connecting plate, so that the broken alfalfa seeds can be further threshed with the cooperation of the fixed alfalfa seed threshing plate. A second elliptical wheel, a third spring, a screen and a fluorocarbon rubber plate are provided. When the first elliptical wheel rotates, it drives the second elliptical wheel at the lower right end to rotate through a single-sided toothed synchronous belt. When the second elliptical wheel at the lower right end rotates, it drives the second elliptical wheel at the lower left end to rotate synchronously through a single-sided toothed synchronous belt. Therefore, with the cooperation of the third spring, the screen can vibrate, so that the threshed alfalfa seeds can be screened.

[0014] 2. The present invention is provided with a second bevel gear, a first bevel gear, a spoiler, an air inlet, a first L-plate, an air outlet pipe, a polyimide fiber needle-punched felt layer and a holder. When the motor rotates, it drives the second bevel gear to rotate through a single-sided tooth synchronous belt. When the second bevel gear rotates, it drives the first bevel gear to rotate. When the first bevel gear rotates, it drives the spoiler to rotate. With the cooperation of the air inlet, the dust generated in the crushing and screening process can be sucked into the cavity between the left side of the first L-plate and the alfalfa seed threshing shell, and after being filtered by the polyimide fiber needle-punched felt layer, the clean cavity is discharged from the air outlet pipe, thereby ensuring the hygiene of the working environment. A second L-plate, a battery, a stator, a rotor, a battery box and a charging jack are provided. When the first bevel gear rotates, it drives the rotor to rotate, and with the cooperation of the stator, it generates electrical energy and stores the electrical energy in the battery, thereby achieving the purpose of self-generation and effectively reducing the consumption of municipal electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the first viewing angle state; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in a second viewing angle state; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention in the third viewing angle state; Figure 4 The present invention is a cross-sectional view of alfalfa seed threshing shell Figure 1 ; Figure 5 The present invention is a cross-sectional view of alfalfa seed threshing shell Figure 2 ; Figure 6 It is a schematic diagram of the cross-sectional structure of the battery box of the present invention.

[0016] In the figure: alfalfa seed threshing shell 1, feed port 2, air outlet pipe 3, polyimide fiber needle felt layer 4, movable door 5, card seat 6, support leg 7, first discharge port 8, second bevel gear 9, first bevel gear 10, handle 11, motor 12, battery box 13, second discharge port 14, bracket 15, second elliptical wheel 16, first elliptical wheel 17, first spring 18, active alfalfa seed crushing teeth 19, first baffle plate 20, driven alfalfa seed crushing teeth 21, stator 22, rotor 23, air inlet 24, screen 25, second connecting plate 26, fluorocarbon rubber plate 27, limiting cylinder 28, limiting rod 29, first connecting plate 30, second L plate 31, spoiler 32, first L plate 33, third spring 34, battery 35, charging jack 36, second movable alfalfa seed threshing plate 37, fixed alfalfa seed threshing plate 38, first movable alfalfa seed threshing plate 39, second spring 40, first knocking plate 41, second knocking plate 42, second baffle plate 43. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] See also Figure 1-Figure 6A threshing device for alfalfa seeds comprises a threshing shell for alfalfa seeds 1, a first movable threshing plate for alfalfa seeds 39 and a second movable threshing plate for alfalfa seeds 37, an active alfalfa seed crushing tooth 19 is movably connected to the upper right end of the inner cavity of the alfalfa seed threshing shell 1, a driven alfalfa seed crushing tooth 21 is movably connected to the inner cavity of the alfalfa seed threshing shell 1 and located on the left side of the active alfalfa seed crushing tooth 19, a fixed alfalfa seed threshing plate 38 is fixedly connected to the upper right end of the inner cavity of the alfalfa seed threshing shell 1, and a first elliptical wheel 17 is movably connected to the upper right end of the inner cavity of the alfalfa seed threshing shell 1.

[0020] The left end of the top of the alfalfa seed threshing shell 1 is connected to an air outlet pipe 3, and a one-way valve is arranged on the inner surface of the air outlet pipe 3. A feed port 2 is opened at the right end of the top of the alfalfa seed threshing shell 1. A first baffle plate 20 is fixedly connected to the top of the inner cavity of the alfalfa seed threshing shell 1 and at a corresponding position of the feed port 2. A second baffle plate 43 is fixedly connected to the inner cavity of the alfalfa seed threshing shell 1 and below the driven alfalfa seed crushing teeth 21.

[0021] A second discharge port 14 is provided at the middle end of the bottom of the alfalfa seed threshing shell 1, support legs 7 are fixedly connected around the bottom of the alfalfa seed threshing shell 1, a third spring 34 is fixedly connected around the bottom of the inner cavity of the alfalfa seed threshing shell 1, a screen 25 is fixedly connected to the top of the third spring 34, the right side of the screen 25 is connected to the lower end of the right side of the inner cavity of the alfalfa seed threshing shell 1 through a fluorocarbon rubber plate 27, and a first discharge port 8 is provided at the connection between the alfalfa seed threshing shell 1 and the screen 25.

[0022] The left end of the inner cavity of the alfalfa seed threshing shell 1 is fixedly connected to the first L-plate 33, the left end of the inner surface of the first L-plate 33 is provided with an air inlet 24, the right end of the top of the first L-plate 33 is fixedly connected to the second L-plate 31, the inner side of the second L-plate 31 is fixedly connected to the stator 22, the left end of the inner surface of the alfalfa seed threshing shell 1 is movably connected to the first bevel gear 10, the left end of the outer surface of the first bevel gear 10 is fixedly connected to the spoiler 32, and the outer surface of the first bevel gear 10 and the inner side of the stator 22 are fixedly connected to the rotor 23.

[0023] The lower left end of the inner cavity of the alfalfa seed threshing shell 1 and the lower right end of the inner cavity of the alfalfa seed threshing shell 1 are both movably connected with a second elliptical wheel 16, and the two second elliptical wheels 16 are connected by a single-sided toothed synchronous belt transmission. The left side of the alfalfa seed threshing shell 1 is fixedly connected with a bracket 15, and the inner surface of the bracket 15 is movably connected with a second bevel gear 9, and the second bevel gear 9 is meshingly connected with the first bevel gear 10.

[0024] The upper end of the left side of the first L plate 33 and the upper end of the right side of the inner cavity of the alfalfa seed threshing shell 1 are fixedly connected with a holder 6, and the inner side of the holder 6 is slidably connected with a polyimide fiber needle felt layer 4. The upper left end of the front side of the alfalfa seed threshing shell 1 is movably connected with a movable door 5 through a hinge, and a handle 11 is fixedly connected to the outer side of the movable door 5. The upper left end of the back side of the alfalfa seed threshing shell 1 is fixedly connected with a battery box 13, and the bottom of the inner cavity of the battery box 13 is fixedly connected with a storage battery 35, and a charging socket 36 is provided on the left side of the battery box 13.

[0025] The upper end of the right side of the first L-plate 33 is fixedly connected to the first connecting plate 30, the bottom of the first connecting plate 30 is movably connected to the first knocking plate 41 through the first spring 18, the right side of the first knocking plate 41 is fixedly connected to the first movable alfalfa seed threshing plate 39, the lower end of the right side of the first L-plate 33 is fixedly connected to the second connecting plate 26, the top of the second connecting plate 26 is movably connected to the second knocking plate 42 through the second spring 40, the right side of the second knocking plate 42 is fixedly connected to the second movable alfalfa seed threshing plate 37, the second knocking plate 42 and the bottom of the first connecting plate 30 are both fixedly connected to the limiting tube 28, the top of the second connecting plate 26 and the first knocking plate 41 are both fixedly connected to the limiting rod 29, and the limiting rod 29 is slidably connected to the inner cavity of the limiting tube 28, which can ensure the stability of the second movable alfalfa seed threshing plate 37 and the first movable alfalfa seed threshing plate 39 during the up and down movement.

[0026] A motor 12 is fixedly connected to the middle end of the back side of the alfalfa seed threshing shell 1, and the output shaft of the motor 12 is connected to the first elliptical wheel 17 and the second bevel gear 9 through a single-sided toothed synchronous belt. The first elliptical wheel 17 is connected to the active alfalfa seed crushing teeth 19 and the second elliptical wheel 16 at the lower right end through a single-sided toothed synchronous belt.

[0027] A method for using an alfalfa seed threshing device comprises the following steps: A. Put the alfalfa seeds to be threshed into the alfalfa seed threshing shell 1 from the feed inlet 2, and turn on the motor 12, which can drive the first elliptical wheel 17 to rotate through the single-sided tooth synchronous belt. When the first elliptical wheel 17 rotates, it will drive the active alfalfa seed crushing teeth 19 to rotate through the single-sided tooth synchronous belt. When the active alfalfa seed crushing teeth 19 rotate, they will drive the driven alfalfa seed crushing teeth 21 to rotate, so that the alfalfa seeds can be crushed; B. When the first elliptical wheel 17 rotates, the first movable alfalfa seed threshing plate 39 and the second movable alfalfa seed threshing plate 37 will be continuously moved up and down in cooperation with the first knocking plate 41, the first spring 18 and the first connecting plate 30 and the second knocking plate 42, the second spring 40 and the second connecting plate 26, so that the broken alfalfa seeds can be further threshed in cooperation with the fixed alfalfa seed threshing plate 38; C. The first elliptical wheel 17 drives the second elliptical wheel 16 at the lower right end to rotate through the single-sided toothed synchronous belt while rotating, and the second elliptical wheel 16 at the lower right end drives the second elliptical wheel 16 at the lower left end to rotate synchronously through the single-sided toothed synchronous belt while rotating, so that the screen 25 can vibrate with the cooperation of the third spring 34, so that the threshed alfalfa seeds can be screened; D. When the motor 12 rotates, it drives the second bevel gear 9 to rotate through the single-sided tooth synchronous belt. When the second bevel gear 9 rotates, it drives the first bevel gear 10 to rotate. When the first bevel gear 10 rotates, it drives the spoiler 32 to rotate. With the cooperation of the air inlet 24, the dust generated during the crushing and screening process can be sucked into the cavity between the left side of the first L plate 33 and the alfalfa seed threshing shell 1, and after being filtered by the polyimide fiber needle felt layer 4, the clean cavity is discharged from the air outlet pipe 3, thereby ensuring the hygiene of the working environment; E. The first bevel gear 10 drives the rotor 23 to rotate while rotating, and generates electric energy with the cooperation of the stator 22, and stores the electric energy in the battery 35, thereby achieving the purpose of self-generation and effectively reducing the consumption of commercial electricity.

[0028] It should be noted that the self-generating process, dust removal process, screening process and two-stage crushing process in the present application are all driven by a motor 12, thereby effectively reducing the production cost of the device and being in the interests of people themselves.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alfalfa seed threshing device, comprising an alfalfa seed threshing shell (1), a first movable alfalfa seed threshing plate (39) and a second movable alfalfa seed threshing plate (37), characterized in that: The upper right end of the inner cavity of the alfalfa seed threshing shell (1) is movably connected to an active alfalfa seed crushing tooth (19); the inner cavity of the alfalfa seed threshing shell (1) and located on the left side of the active alfalfa seed crushing tooth (19) are movably connected to a driven alfalfa seed crushing tooth (21); the upper right end of the inner cavity of the alfalfa seed threshing shell (1) is fixedly connected to a fixed alfalfa seed threshing plate (38); and the upper right end of the inner cavity of the alfalfa seed threshing shell (1) is movably connected to a first elliptical wheel (17).

2. The alfalfa seed threshing device according to claim 1, characterized in that: The left end of the top of the alfalfa seed threshing shell (1) is connected to an air outlet pipe (3), the inner surface of the air outlet pipe (3) is provided with a one-way valve, the right end of the top of the alfalfa seed threshing shell (1) is provided with a feed inlet (2), a first baffle plate (20) is fixedly connected to the top of the inner cavity of the alfalfa seed threshing shell (1) and located at a corresponding position of the feed inlet (2), and a second baffle plate (43) is fixedly connected to the inner cavity of the alfalfa seed threshing shell (1) and located below the driven alfalfa seed crushing teeth (21).

3. The alfalfa seed threshing device according to claim 1, characterized in that: A second discharge port (14) is provided at the middle end of the bottom of the alfalfa seed threshing shell (1); support legs (7) are fixedly connected to the four sides of the bottom of the alfalfa seed threshing shell (1); a third spring (34) is fixedly connected to the four sides of the bottom of the inner cavity of the alfalfa seed threshing shell (1); a screen (25) is fixedly connected to the top of the third spring (34); the right side of the screen (25) is connected to the lower end of the right side of the inner cavity of the alfalfa seed threshing shell (1) via a fluorocarbon rubber plate (27); and a first discharge port (8) is provided at the connection between the alfalfa seed threshing shell (1) and the screen (25).

4. The alfalfa seed threshing device according to claim 1, characterized in that: The left end of the inner cavity of the alfalfa seed threshing shell (1) is fixedly connected to a first L-plate (33); the left end of the inner surface of the first L-plate (33) is provided with an air inlet (24); the right end of the top of the first L-plate (33) is fixedly connected to a second L-plate (31); the inner side of the second L-plate (31) is fixedly connected to a stator (22); the left end of the inner surface of the alfalfa seed threshing shell (1) is movably connected to a first bevel gear (10); the left end of the outer surface of the first bevel gear (10) is fixedly connected to a spoiler (32); and the outer surface of the first bevel gear (10) and located on the inner side of the stator (22) is fixedly connected to a rotor (23).

5. The alfalfa seed threshing device according to claim 1, characterized in that: The lower left end of the inner cavity of the alfalfa seed threshing shell (1) and the lower right end of the inner cavity of the alfalfa seed threshing shell (1) are both movably connected to a second elliptical wheel (16), and the two second elliptical wheels (16) are connected by a single-sided toothed synchronous belt transmission. The left side of the alfalfa seed threshing shell (1) is fixedly connected to a bracket (15), and the inner surface of the bracket (15) is movably connected to a second bevel gear (9), and the second bevel gear (9) is meshingly connected to the first bevel gear (10).

6. The alfalfa seed threshing device according to claim 1, characterized in that: The upper end of the left side of the first L-plate (33) and the upper end of the right side of the inner cavity of the alfalfa seed threshing shell (1) are both fixedly connected to a holder (6); the inner side of the holder (6) is slidably connected to a polyimide fiber needle felt layer (4); the upper left end of the front side of the alfalfa seed threshing shell (1) is movably connected to a movable door (5) via a hinge; the outer side of the movable door (5) is fixedly connected to a handle (11); the upper left end of the back side of the alfalfa seed threshing shell (1) is fixedly connected to a battery box (13); the bottom of the inner cavity of the battery box (13) is fixedly connected to a storage battery (35); and a charging socket (36) is provided on the left side of the battery box (13).

7. The alfalfa seed threshing device according to claim 1, characterized in that: The upper end of the right side of the first L-shaped plate (33) is fixedly connected to a first connecting plate (30), the bottom of the first connecting plate (30) is movably connected to a first knocking plate (41) via a first spring (18), the right side of the first knocking plate (41) is fixedly connected to a first movable alfalfa seed threshing plate (39), the lower end of the right side of the first L-shaped plate (33) is fixedly connected to a second connecting plate (26), the top of the second connecting plate (26) is movably connected to a second knocking plate (42) via a second spring (40), the right side of the second knocking plate (42) is fixedly connected to a second movable alfalfa seed threshing plate (37), the bottoms of the second knocking plate (42) and the first connecting plate (30) are both fixedly connected to a limiting cylinder (28), the tops of the second connecting plate (26) and the first knocking plate (41) are both fixedly connected to a limiting rod (29), and the limiting rod (29) is slidably connected to the inner cavity of the limiting cylinder (28).

8. The alfalfa seed threshing device according to claim 1, characterized in that: A motor (12) is fixedly connected to the middle end of the back side of the alfalfa seed threshing shell (1); the output shaft of the motor (12) is transmission-connected to the first elliptical wheel (17) and the second bevel gear (9) via a single-sided toothed synchronous belt; the first elliptical wheel (17) is transmission-connected to the active alfalfa seed crushing teeth (19) and the second elliptical wheel (16) at the lower right end via a single-sided toothed synchronous belt.

9. A method for using an alfalfa seed threshing device, characterized in that: The following steps are involved: A. Putting alfalfa seeds to be threshed into the alfalfa seed threshing shell (1) from the feed inlet (2), and turning on the motor (12), so that the first elliptical wheel (17) can be driven to rotate through the single-sided toothed synchronous belt. When the first elliptical wheel (17) rotates, it can also drive the active alfalfa seed crushing teeth (19) to rotate through the single-sided toothed synchronous belt. When the active alfalfa seed crushing teeth (19) rotate, they can also drive the driven alfalfa seed crushing teeth (21) to rotate, so that the alfalfa seeds can be crushed; B. When the first elliptical wheel (17) rotates, the first knocking plate (41), the first spring (18) and the first connecting plate (30) and the second knocking plate (42), the second spring (40) and the second connecting plate (26) will continuously move the first movable alfalfa seed threshing plate (39) and the second movable alfalfa seed threshing plate (37) up and down, so that the broken alfalfa seeds can be further threshed with the cooperation of the fixed alfalfa seed threshing plate (38); C. When the first elliptical wheel (17) rotates, it drives the second elliptical wheel (16) at the lower right end to rotate through the single-sided toothed synchronous belt. When the second elliptical wheel (16) at the lower right end rotates, it drives the second elliptical wheel (16) at the lower left end to rotate synchronously through the single-sided toothed synchronous belt. Thus, the screen (25) can be vibrated with the cooperation of the third spring (34), so that the threshed alfalfa seeds can be screened; D. When the motor (12) rotates, it drives the second bevel gear (9) to rotate through the single-sided toothed synchronous belt. When the second bevel gear (9) rotates, it drives the first bevel gear (10) to rotate. When the first bevel gear (10) rotates, it drives the spoiler (32) to rotate. In cooperation with the air inlet (24), dust generated during the crushing and screening process can be sucked into the cavity between the left side of the first L-plate (33) and the alfalfa seed threshing shell (1). After being filtered by the polyimide fiber needle felt layer (4), the clean cavity is discharged from the air outlet pipe (3), thereby ensuring the hygiene of the working environment; E. When the first bevel gear (10) rotates, it drives the rotor (23) to rotate, and with the cooperation of the stator (22), it generates electric energy, which is stored in the storage battery (35), thereby achieving the purpose of self-generation and effectively reducing the consumption of commercial electricity.

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