CN114568133A - Mung bean threshing machine - Google Patents

Abstract

The invention discloses a mung bean threshing machine, wherein a partition plate, a first mesh screen and a second mesh screen are sequentially arranged in a box body from top to bottom, the partition plate, the first mesh screen and the second mesh screen divide the box body into a feeding cavity, a threshing cavity and a straw compression cavity from top to bottom, an extrusion device is arranged above a transmission belt of the feeding cavity, a T-shaped buffer part is arranged on a pushing body arranged outside the box body, a positioning rod is sleeved on the T-shaped buffer part, a tool rest is arranged on a lifting body at a position corresponding to the positioning rod, a support is arranged at the top of the box body at a position corresponding to the T-shaped buffer part, a starting device is arranged at the top of the support, a moving body is arranged on a straw row rotating shaft at a position corresponding to a straw blanking port, a third return spring is sleeved on a straw row rotating shaft between the moving body and the box body, a first granular material is arranged between the straw row rotating shaft of the straw compression cavity and the first mesh screen, and a second granular material is arranged below the second mesh screen. The invention has the advantages that: prevent blockage, improve the working efficiency and facilitate the collection of straws.

Description

Mung bean threshing machine

Technical Field

The invention belongs to the technical field of crop threshing equipment, and particularly relates to a mung bean threshing machine.

Background

The thresher threshes, separates and cleans the cut crops to obtain needed grains, which is an important means for improving productivity, improving labor conditions and ensuring high yield and harvest; with the continuous improvement of the agricultural mechanization level in China, users put forward higher requirements on threshing machines with high operation quality, complete functions, strong adaptability and low labor intensity; although the existing mung bean threshing machine can perform threshing and separate grains from straws, the grains are discharged along with the straws, so that incomplete separation can be caused; meanwhile, the straw can block the machine due to the length of the straw during threshing, and in addition, the threshed straw occupies a large area and is inconvenient to collect. Therefore, it is important to solve the above problems.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides the mung bean threshing machine which can prevent blockage, improve the working efficiency and facilitate the collection of straws.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a mung bean threshing machine comprises a box body and supporting legs, wherein the box body is supported by the supporting legs, a partition plate, a first mesh screen and a second mesh screen are sequentially arranged in the box body from top to bottom, the partition plate, the first mesh screen and the second mesh screen divide the box body into a feeding cavity, a threshing cavity and a straw compression cavity from top to bottom, a group of driving shafts are symmetrically arranged above the partition plate of the feeding cavity, gears are sleeved at two ends of each driving shaft, the gears are connected through chains, the chains are installed on two sides of a transmission belt, an open feeding port is formed in the box body at the position corresponding to one end of the transmission belt, a first blanking port is formed between the partition plate at the position corresponding to the other end of the transmission belt and the box body, one end of one of the driving shafts penetrates through the box body, a first driven belt pulley is sleeved at the end of the driving shaft, an extruding device is arranged above the transmission belt of the feeding cavity, the extruding device comprises a swinging rod, a telescopic rod, a connecting rod and a pressing seat, the left end of the swinging rod is hinged to the top of the box body at the position corresponding to the open feeding port, the right end of the oscillating rod is internally provided with a telescopic rod, the center of the oscillating rod is hinged with a connecting rod, the left end of the connecting rod is hinged at the top of the pressure application seat, the side part of the pressure application seat between the side part of the pressure application seat and the contact surface of the box body is provided with a guide block, the guide block is arranged in the guide groove, the right end of the connecting rod is hinged at the top of the box body, the right end of the connection between the right end of the connecting rod and the contact surface of the box body is provided with a T-shaped block, the box body between the right end of the connecting rod and the contact surface of the box body is provided with a T-shaped groove, the T-shaped block is arranged in the T-shaped groove, the telescopic rod is hinged on the pushing body, the pushing body vertically penetrates through the box body, the pushing body arranged outside the box body is provided with a T-shaped buffer member, the T-shaped buffer member between the positioning rod and the pushing body is sleeved with a first return spring, the positioning rod is vertically and fixedly connected on the lifting body, the lifting body is fixedly connected at the output end of the hydraulic cylinder, the hydraulic cylinder is fixedly connected to the box body, a knife rest is arranged on the lifting body at the position corresponding to the positioning rod, the knife rest and the positioning rod are parallel to each other, a sliding groove is formed in the pushing body at the position corresponding to the knife rest, the knife rest is extended to be arranged in the sliding groove, a knife body is arranged at the end part of the knife rest, the knife body can slide in the sliding groove, a support is arranged at the top of the box body at the position corresponding to the T-shaped buffer piece, a starting device is arranged at the top of the support and comprises a rod body, a cover body, a second return spring, a first switch connector and a second switch connector, the rod body is vertically and fixedly connected to the top of the support, a blocking sleeve is arranged at the end part of the rod body, the cover body is sleeved with the cover body, the second return spring is sleeved on the rod body between the cover body and the support, the first switch connector is arranged at the end part of the rod body at the position corresponding to the switch connector, a controller and a first motor are arranged at the side part of the support, and a driving belt pulley is sleeved at the output end of the first motor, the driving belt pulley is connected with the first driven belt pulley through a first belt, a Z-shaped rotating shaft is arranged in the threshing cavity, one end of the Z-shaped rotating shaft penetrates through the box body, the end part of the Z-shaped rotating shaft is connected with the output end of a second motor, the second motor is fixedly connected to the box body, the other end of the Z-shaped rotating shaft is connected to an eccentric rotator, the eccentric rotator is coaxial with the output end of the second motor, the eccentric rotator arranged outside the box body is rotatably connected to the box body, a transmission shaft is coaxially arranged on the eccentric rotator arranged outside the box body, a second driven belt pulley is sleeved on the transmission shaft, a first auger blade is arranged on the Z-shaped rotating shaft below the first blanking port, nail teeth are uniformly distributed on the Z-shaped rotating shaft close to the eccentric rotator, a second blanking port is arranged on a first mesh screen at the position corresponding to the nail teeth, a straw discharging rotating shaft is arranged in the straw compression cavity, the left end of the straw discharging rotating shaft penetrates through the box body, and a third driven belt pulley is sleeved at the end part of the straw compression cavity, the third driven pulley is connected with the second driven pulley through a second belt, the right end of the straw discharging rotating shaft is rotatably connected to the box body and is provided with a straw blanking port on a second mesh screen corresponding to the position, a moving body is arranged on the straw discharging rotating shaft corresponding to the position of the straw blanking port, a third return spring is sleeved on the straw discharging rotating shaft between the moving body and the box body, a second auger blade is arranged on the straw discharging rotating shaft below the second blanking port, a first granular material receiving body is arranged between the straw discharging rotating shaft of the straw compression cavity and the first mesh screen, and a second granular material receiving body is arranged below the second mesh screen.

Furthermore, the inner bottom surfaces of the first and second mitochondria are inclined.

Further, the inner bottom surface of the second mesh screen is obliquely arranged.

Furthermore, the first motor, the second motor and the hydraulic cylinder are all controlled by the controller

Compared with the prior art, the invention has the advantages that: the pushing body can automatically adjust the upper position and the lower position according to the thickness of the straw under the action of the first return spring, so that damage to seeds is avoided, the cutter body is carried by the cutter frame to move synchronously in the moving process of the pushing body, the cutter body can cut the straw below the end part of the pushing body under the action of the lifting body, and the cut straw can be prevented from blocking a machine; the pushing body can move downwards and can also drive the swinging rod to rotate, and the connecting rod is hinged to the swinging rod, so that the connecting rod can push the pressing seat to extrude the straws, the occupied area of the straws is reduced, and the straws can be conveniently and smoothly put in the device; the grains brought by the straws can enter the second grain receiving body through the second mesh screen, the grains can roll off in the direction away from the straw blanking port due to the inclined arrangement of the inner bottom surface of the second mesh screen, the grains enter the second grain receiving body under the action of the second mesh screen, and the grains are collected through the second grain receiving body, so that the straws and the grains are thoroughly separated; because the movable body is sleeved on the straw discharging rotating shaft above the straw discharging port, the straws can be firstly supported on the movable body, along with the increase of the straws, the straws can be compressed and push the movable body to cross the straw discharging port, the compressed straws can fall through the straw discharging port to be collected, the occupied area of the compressed straws is small, and the straws are convenient to collect.

Drawings

Fig. 1 is a schematic front view of a mung bean thresher according to the present invention.

Fig. 2 is a schematic front sectional view of a mung bean thresher according to the present invention, in which a cutter body driven by an extruding means is drawn toward a conveying belt.

FIG. 3 is a schematic front sectional view of a mung bean thresher according to the present invention, in which a cutter body is driven by an extruding means to move toward the top of a case.

Fig. 4 is an enlarged schematic structural view a of the mung bean thresher according to the present invention shown in fig. 3.

Fig. 5 is a front sectional view showing a schematic structure of a mung bean thresher according to the present invention, in which an enlarged schematic structure of an extruding means and a cutter body is shown.

In the figure, 1, a box body, 2, supporting legs, 3, a partition plate, 4, a first mesh screen, 5, a second mesh screen, 6, a feeding cavity, 7, a threshing cavity, 8, a straw compression cavity, 9, a driving shaft, 10, gears, 11, a chain, 12, a transmission belt, 13, an open feeding port, 14, a first blanking port, 15, a first driven belt pulley, 16, a swinging rod, 17, a telescopic rod, 18, a connecting rod, 19, a pressing seat, 20, a guide block, 21, a guide groove, 22, a T-shaped block, 23, a T-shaped groove, 24, a pushing body, 25, a T-shaped buffer member, 26, a positioning rod, 27, a first return spring, 28, a lifting body, 29, a hydraulic cylinder, 30, a tool rest, 31, a sliding groove, 32, a cutter body, 33, a support, 34, a rod body, 35, a cover body, 36, a second return spring, 37, a first switch joint, 38, a second switch joint, 39, a controller, 40, a first motor, 41, a driving belt pulley, 42. the straw feeding device comprises a first belt, a Z-shaped rotating shaft, a second motor, a 45-degree eccentric rotating body, a 46-degree transmission shaft, a 47-degree second driven belt pulley, a 48-degree first auger blade, a 49-degree nail tooth, a 50-degree second discharging port, a 51-degree straw discharging rotating shaft, a 52-degree third driven belt pulley, a 53-degree second belt, a 54-degree straw discharging port, a 55-degree moving body, a 56-degree third return spring, a 57-degree second auger blade, a 58-degree first grain receiving body and a 59-degree second grain receiving body.

Detailed Description

The following examples are intended to further illustrate the present invention and should not be construed as limiting the scope of the invention, and other insubstantial modifications and adaptations of the invention by those skilled in the art based on the teachings herein are intended to be covered thereby.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A mung bean threshing machine comprises a box body 1 and supporting legs 2, wherein the box body 1 is supported by the supporting legs 2, a partition plate 3, a first mesh screen 4 and a second mesh screen 5 are sequentially arranged in the box body 1 from top to bottom, the partition plate 3, the first mesh screen 4 and the second mesh screen 5 divide the interior of the box body 1 from top to bottom into a feeding cavity 6, a threshing cavity 7 and a straw compression cavity 8, a group of driving shafts 9 are symmetrically arranged above the partition plate 3 of the feeding cavity 6, two ends of each driving shaft 9 are respectively sleeved with a gear 10, the gears 10 are connected through chains 11, the chains 11 are arranged on two sides of a transmission belt 12, an open feeding port 13 is arranged on the box body 1 at a position corresponding to one end of the transmission belt 12, a first blanking port 14 is arranged between the partition plate 3 and the box body 1 at a position corresponding to the other end of the transmission belt 12, one end of one driving shaft 9 penetrates through the box body 1 and is sleeved with a first driven belt pulley 15 at the end, an extruding device is arranged above the transmission belt 12 of the feeding cavity 6, the extrusion device comprises a swing rod 16, a telescopic rod 17, a connecting rod 18 and a pressure applying seat 19, the left end of the swing rod 16 is hinged on the top of the box body 1 at the position corresponding to the open feeding port 13, the telescopic rod 17 is arranged in the right end of the swing rod 16, the connecting rod 18 is hinged in the center of the swing rod 16, the left end of the connecting rod 18 is hinged on the top of the pressure applying seat 19, a guide block 20 is arranged on the side part of the pressure applying seat 19 between the side part of the pressure applying seat 19 and the contact surface of the box body 1, a guide groove 21 is arranged on the box body 1 between the side part of the pressure applying seat 19 and the contact surface of the box body 1, the guide block 20 is arranged in the guide groove 21, the right end of the connecting rod 18 is hinged on the top of the box body 1, a T-shaped block 22 is arranged on the right end of the connecting rod 18 between the right end of the connecting rod 18 and the contact surface of the box body 1, a T-shaped groove 23 is arranged on the box body 1 between the right end of the connecting rod 18 and the contact surface of the box body 1, the T-shaped block 22 is arranged in the T-shaped groove 23, the telescopic rod 17 is hinged on a pushing body 24, the pushing body 24, and vertically penetrates through the box body 1, a T-shaped buffer 25 is arranged on a pushing body 24 arranged outside the box body 1, a positioning rod 26 is sleeved on the T-shaped buffer 25, a first return spring 27 is sleeved on the T-shaped buffer 25 between the positioning rod 26 and the pushing body 24, the positioning rod 26 is vertically and fixedly connected to a lifting body 28, the lifting body 28 is fixedly connected to the output end of a hydraulic cylinder 29, the hydraulic cylinder 29 is fixedly connected to the box body 1, a tool rest 30 is arranged on the lifting body 28 at a position corresponding to the positioning rod 26, the tool rest 30 and the positioning rod 26 are parallel to each other, a sliding groove 31 is arranged on the pushing body 24 at a position corresponding to the tool rest 30, the tool rest 30 extends to be arranged in the sliding groove 31, a cutter body 32 is arranged at the end part of the tool rest and can slide in the sliding groove 31, a support 33 is arranged at the top of the box body 1 at a position corresponding to the T-shaped buffer 25, a starting device is arranged at the top of the support 33, and comprises a rod body 34, a cover body 35 and a second return spring 36, A first switch joint 37 and a second switch joint 38, wherein the rod 34 is vertically and fixedly connected to the top of the bracket 33, the end of the rod 34 is provided with a baffle and is sleeved with a cover 35, the rod 34 between the cover 35 and the bracket 33 is sleeved with a second return spring 36, the bottom of the cover 35 is provided with the first switch joint 37, the end of the rod 34 corresponding to the first switch joint 37 is provided with the second switch joint 38, the side of the bracket 33 is provided with a controller 39 and a first motor 40, the output end of the first motor 40 is sleeved with a driving pulley 41, the driving pulley 41 is connected with a first driven pulley 15 through a first belt 42, a Z-shaped rotating shaft 43 is arranged in the threshing cavity 7, one end of the Z-shaped rotating shaft 43 penetrates through the box 1 and is connected with the output end of a second motor 44, the second motor 44 is fixedly connected to the box 1, the other end of the Z-shaped rotating shaft 43 is connected to an eccentric rotating body 45, the eccentric rotating body 45 is coaxial with the output end of the second motor 44, an eccentric rotating body 45 is rotatably connected to a box body 1, a transmission shaft 46 is coaxially arranged on the eccentric rotating body 45 arranged outside the box body 1, a second driven belt pulley 47 is sleeved on the transmission shaft 46, a first auger blade 48 is arranged on a Z-shaped rotating shaft 43 below a first blanking port 14, spike teeth 49 are uniformly distributed on the Z-shaped rotating shaft 43 close to the eccentric rotating body 45, a second blanking port 50 is arranged on a first mesh screen 4 at the position corresponding to the spike teeth 49, a row of straw rotating shafts 51 are arranged in a straw compression cavity 8, the left ends of the row of straw rotating shafts 51 penetrate through the box body 1, a third driven belt pulley 52 is sleeved at the end part of the row of straw rotating shafts 51, the third driven belt pulley 52 is connected with the second driven belt pulley 47 through a second belt 53, the right ends of the row of straw rotating shafts 51 are rotatably connected to the box body 1, a straw blanking port 54 is arranged on the second mesh screen 5 at the corresponding position, and a moving body 55 is arranged on the row of straw blanking port 54, a third return spring 56 is sleeved on the straw row rotating shaft 51 between the moving body 55 and the box body 1, a second auger blade 57 is arranged on the straw row rotating shaft 51 below the second blanking port 50, a first granular material 58 is arranged between the straw row rotating shaft 51 of the straw compression cavity 8 and the first mesh screen 4, and a second granular material 59 is arranged below the second mesh screen 5.

The inner bottom surfaces of the first and second particles 58 and 59 are inclined.

The inner bottom surface of the second mesh 5 is inclined.

The first motor 40, the second motor 44 and the hydraulic cylinder 29 are all controlled by the controller 39.

When the device works, the controller 39 is operated to synchronously start the first motor 40, the second motor 44 and the hydraulic cylinder 29, the output end of the hydraulic cylinder 29 drives the lifting body 28 to carry the positioning rod 26 to move upwards, the lifting body 28 can drive the T-shaped buffer 25 to enable the T-shaped buffer 25 to abut against the cover body 35, the T-shaped buffer 25 can push the cover body 35 to move on the rod body 34, the first switch joint 37 is connected with the second switch joint 38, so that the first motor 40 rotates, the first motor 40 drives the driving pulley 41, the driving pulley 41 can drive the first driven pulley 15 to rotate through the first belt 42, the first driven pulley 15 rotates the driving gear 10, the gear 10 drives the chain 11, and the chain 11 drives the transmission belt 12; the straw carrying mung beans is placed on the conveying belt 12 through the open feeding port 13, the straw carrying mung beans moves towards the box body 1 under the action of the conveying belt 12, after the straw carrying mung beans moves for a certain distance, under the action of the controller 39, the hydraulic cylinder 29 operates to drive the lifting body 28 to carry the positioning rod 26 to move downwards, the positioning rod 26 pushes the pushing body 24, the T-shaped buffer piece 25 is far away from the cover body 35, the cover body 35 returns under the action of the second return spring 36, the first switch connector 37 and the second switch connector 38 are disconnected, at the moment, the first motor 40 does not rotate any more, finally, the conveying belt 12 does not rotate any more, the straw is placed above the conveying belt 12, the end part of the pushing body 24 in the box body 1 can be abutted to the straw, the pushing body 24 can automatically adjust the upper position and the lower position according to the thickness of the straw under the action of the first return spring 27, damage to seeds is avoided, the cutter bodies 32 are carried by the cutter bodies 30 in the moving process of the pushing body 24, the cutter body 32 can cut the straws below the end part of the pushing body 24 under the action of the lifting body 28, the cut straws enter the threshing cavity 7 through the first blanking port 14, the pushing body 24 can move downwards and can also drive the swinging rod 16 to rotate, and the swinging rod 16 is hinged with the connecting rod 18, so that the connecting rod 18 can push the pressing seat 19, the pressing seat 19 can extrude the straws, the floor area of the straws is reduced, the throwing is convenient and smooth, after the straws are cut into sections, the hydraulic cylinder 29 operates again under the action of the controller 39, the steps can be repeated, and the straws are cut into sections; the straws continuously move towards the direction of the spike teeth 49 under the action of the first auger blade 48, grains are separated from the straws under the action of the spike teeth 49, the grains enter the first receiving body 58 under the action of the first mesh screen 4, the grains are collected through the first receiving body 58, the straws after kernel removal enter the straw compression cavity 8 through the second blanking port 50, the grains brought by the straws can enter the second receiving body 59 through the second mesh screen 5, the grains roll away from the straw blanking port 54 due to the inclined arrangement of the inner bottom surface of the second mesh screen 5, the grains enter the second receiving body 59 under the action of the second mesh screen 5, the grains are collected through the second receiving body 59, the straws continuously move towards the direction of the straw blanking port 54 under the action of the second auger blade 57, and the straws are firstly propped against the moving body 55 due to the sleeve arrangement of the straw rotating shaft 51 above the straw blanking port 54, as the straws are increased, the straws are compressed and push the moving body 55 to pass over the straw blanking port 54, the compressed straws fall through the straw blanking port 54 and are collected, and the moving body 55 returns under the action of the second return spring 36.

Claims (4)

1. The utility model provides a mung bean thresher, includes box (1) and landing leg (2), and box (1) is supported by landing leg (2), its characterized in that: the box body is characterized in that a partition plate (3), a first mesh screen (4) and a second mesh screen (5) are sequentially arranged in the box body (1) from top to bottom, the partition plate (3), the first mesh screen (4) and the second mesh screen (5) divide the box body (1) from top to bottom into a feeding cavity (6), a threshing cavity (7) and a straw compression cavity (8), a group of driving shafts (9) are symmetrically arranged above the partition plate (3) of the feeding cavity (6), gears (10) are sleeved at two ends of the driving shafts (9), the gears (10) are connected through chains (11), the chains (11) are arranged on two sides of a transmission belt (12), one end of the transmission belt (12) corresponds to the position of the box body (1) and is provided with an open feeding port (13), the other end of the transmission belt (12) corresponds to the position of the partition plate (3) and the box body (1) and is provided with a first blanking port (14), one end of one of the driving shafts (9) penetrates through the box body (1) and is sleeved with a first driven belt pulley (15) at the end part, an extruding device is arranged above the conveying belt (12) of the feeding cavity (6), the extruding device comprises a swinging rod (16), a telescopic rod (17), a connecting rod (18) and a pressing seat (19), the left end of the swinging rod (16) is hinged to the top of the box body (1) at the corresponding position of the open feeding port (13), the telescopic rod (17) is arranged in the right end of the swinging rod (16), the connecting rod (18) is hinged to the center of the swinging rod (16), the left end of the connecting rod (18) is hinged to the top of the pressing seat (19), a guide block (20) is arranged on the side part of the pressing seat (19) between the side part of the pressing seat (19) and the contact surface of the box body (1), and a guide groove (21) is arranged on the box body (1) between the side part of the pressing seat (19) and the contact surface of the box body (1) ) The guide block (20) is arranged in the guide groove (21), the right end of the connecting rod (18) is hinged to the top of the box body (1), the right end of the connecting rod (18) is provided with a T-shaped block (22) with the right end of the connecting rod (18) between the contact surfaces of the box body (1), a T-shaped groove (23) is arranged on the box body (1) between the right end of the connecting rod (18) and the contact surfaces of the box body (1), the T-shaped block (22) is arranged in the T-shaped groove (23), the telescopic rod (17) is hinged on the pushing body (24), the pushing body (24) vertically penetrates through the box body (1), a T-shaped buffer piece (25) is arranged on the pushing body (24) outside the box body (1), a positioning rod (26) is sleeved on the T-shaped buffer piece (25), and a first return spring (27) is sleeved on the T-shaped buffer piece (25) between the positioning rod (26) and the pushing body (24), the positioning rod (26) is vertically and fixedly connected to a lifting body (28), the lifting body (28) is fixedly connected to the output end of a hydraulic cylinder (29), the hydraulic cylinder (29) is fixedly connected to the box body (1), a tool rest (30) is arranged on the lifting body (28) at a position corresponding to the positioning rod (26), the tool rest (30) is parallel to the positioning rod (26), a sliding groove (31) is formed in the pushing body (24) at a position corresponding to the tool rest (30), the tool rest (30) extends to be arranged in the sliding groove (31) and is provided with a cutter body (32) at the end part position, the cutter body (32) can slide in the sliding groove (31), a support (33) is arranged at the top part of the box body (1) at a position corresponding to the T-shaped buffer piece (25), a starting device is arranged at the top part of the support (33), and comprises a rod body (34), Lid (35), second return spring (36), switch joint one (37) and switch joint two (38), the perpendicular fixed connection of body of rod (34) is in support (33) top, the tip of body of rod (34) is equipped with to keep off and prolongs and the cover is equipped with lid (35), lid (35) with between support (33) the cover is equipped with second return spring (36) on body of rod (34), lid (35) bottom is equipped with switch joint one (37), switch joint one (37) correspond the position body of rod (34) tip is equipped with switch joint two (38), support (33) lateral part is equipped with controller (39) and first motor (40), the output cover of first motor (40) is equipped with driving pulley (41), driving pulley (41) with connect through first belt (42) between first driven pulley (15), threshing cavity (7) is internally provided with a Z-shaped rotating shaft (43), one end of Z-shaped rotating shaft (43) penetrates through box body (1) and the end part of the Z-shaped rotating shaft is connected with the output end of a second motor (44), the second motor (44) is fixedly connected on box body (1), the other end of Z-shaped rotating shaft (43) is connected on an eccentric rotating body (45), the eccentric rotating body (45) is coaxial with the output end of the second motor (44), the eccentric rotating body (45) is rotatably connected on box body (1), a transmission shaft (46) is coaxially arranged on the eccentric rotating body (45) outside box body (1), a second driven belt pulley (47) is sleeved on the transmission shaft (46), a first twisted blade (48) is arranged on Z-shaped rotating shaft (43) below a first falling port (14), nail teeth (49) are uniformly distributed on Z-shaped rotating shaft (43) and close to the eccentric rotating body (45), the nail teeth (49) correspond to the position and are provided with a second blanking opening (50) on the first mesh screen (4), a straw compression cavity (8) is internally provided with a straw rotating shaft (51), the left end of the straw rotating shaft (51) is penetrated through the box body (1) and is provided with a third driven pulley (52) at the end part in a sleeved mode, the third driven pulley (52) is connected with the second driven pulley (47) through a second belt (53), the right end of the straw rotating shaft (51) is rotatably connected with the box body (1) and is provided with a straw blanking opening (54) on the second mesh screen (5) corresponding to the position, the straw blanking opening (54) corresponds to the position and is provided with a moving body (55) on the straw rotating shaft (51), the moving body (55) and the straw rotating shaft (51) between the box body (1) are sleeved with a third return spring (56), the straw discharging device is characterized in that a second auger blade (57) is arranged on the straw discharging rotating shaft (51) below the second blanking port (50), a first granular material receiving body (58) is arranged between the straw discharging rotating shaft (51) and the first mesh screen (4) in the straw compression cavity (8), and a second granular material receiving body (59) is arranged below the second mesh screen (5).

2. The mung bean thresher according to claim 1, wherein: the inner bottom surfaces of the first and second connecting particles (58, 59) are inclined.

3. The mung bean thresher according to claim 1, wherein: the inner bottom surface of the second mesh screen (5) is obliquely arranged.

4. The mung bean thresher according to claim 1, wherein: the first motor (40), the second motor (44) and the hydraulic cylinder (29) are all controlled by the controller (39).

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