Roller threshing device for coarse cereals

Abstract

The invention discloses a coarse cereal roller threshing device, and relates to the technical field of cereal threshing equipment, and the coarse cereal roller threshing device comprises an n-shaped bottom plate, a collection box, a sieve plate, an inner cylinder, a knocking rod, a rotating rod, exhaust fan blades, a lifting mechanism, a first rotating mechanism, a second rotating mechanism, a driving mechanism, a screening mechanism and a third rotating mechanism, the screening mechanism is driven by the driving mechanism to work, the inner cylinder is driven by the first rotating mechanism to rotate, the lifting mechanism is driven by the inner cylinder to work, and the second rotating mechanism is driven by the inner cylinder to work. The coarse cereals located in the inner cylinder are rotationally knocked, the inner cylinder is driven by the first rotating mechanism to rotate along with the inner cylinder, the inner cylinder synchronously moves up and down in the rotating process under the cooperation of the lifting mechanism, and the effect of accelerating contact between the internal coarse cereals and the knocking rod is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of grain threshing equipment, and in particular to a grain drum threshing device. Background Art

[0002] When harvesting grains, the outer husks need to be separated, leaving the fruit inside the husk so that they can be stored normally.

[0003] The husk separation of transmission is all through manual screening of grains to make the grain husk fall off, and the lighter husk is blown off by wind, so as to ensure that the grains left in the frame are husked. This method is more labor-intensive and the separation efficiency is very slow. With the development of agricultural equipment, it has gradually evolved into using threshers to thresh grains. The existing thresher structure and function are relatively simple. Usually, all the grains are poured into the threshing drum, and the rotating rod in the drum is used to knock the grains to achieve husking. Since this method only processes the grains in a rotating manner, it cannot ensure that the husks can be completely separated. Therefore, screening work still needs to be done after collection, which is more cumbersome.

[0004] In order to solve the above problems, a grain drum threshing device is proposed. Summary of the invention

[0005] In view of the above problems, the present invention provides a miscellaneous grain drum threshing device, which solves the problem that the existing thresher has a relatively simple structure and function. Usually, all the grains are poured into a threshing drum, and the grains are knocked by a rotating rod rotating in the drum to achieve husking. Since this method only processes the grains in a rotating manner, it cannot ensure that the husks can be completely separated. Therefore, screening work still needs to be done after collection, which is a relatively cumbersome problem.

[0006] The technical solution adopted by the present invention is: comprising an n-type bottom plate, a collecting box, a supporting plate, an outer barrel, a screen plate, an inner barrel, a knocking rod, a rotating rod, an exhaust fan blade, a lifting mechanism, a first rotating mechanism, a second rotating mechanism, a driving mechanism, a screening mechanism, and a third rotating mechanism; An outer barrel is provided above the horizontal plate of the n-type bottom plate, and two sides of the lower end of the outer barrel are fixedly connected to two sides of the upper end of the horizontal plate of the n-type bottom plate through support plates respectively; A driving mechanism is provided below the outer barrel, and the driving mechanism is fixedly arranged on the upper end of the horizontal plate of the n-type bottom plate; A first through hole is provided on the transverse plate of the n-type bottom plate, and the first through hole is provided on the front side of the driving mechanism; A collection box is detachably provided below the horizontal plate of the n-type bottom plate, and the collection box is detachably provided below the first through hole; A sieve plate is movably provided above the first through hole, a second through hole is provided on the bottom wall of the outer barrel, and the sieve plate is movably provided below the second through hole; The sieve plate is driven to move by the sieving mechanism, and the sieving mechanism is driven to work by the driving mechanism; An inner cylinder is movably arranged in the outer barrel, and the inner cylinder is driven to rotate by a first rotating mechanism, and the first rotating mechanism is driven to work by the driving mechanism; The inner cylinder is slidably arranged on the inner wall of the outer barrel, the inner cylinder is driven to slide by a lifting mechanism, and the inner cylinder drives the lifting mechanism to work by rotating; A plurality of knocking rods are rotatably arranged in the inner cylinder, and a plurality of the knocking rods are fixedly sleeved with rotating rods; The plurality of rotating rods are driven to rotate by the second rotating mechanism, and the inner cylinder drives the second rotating mechanism to work by rotating; A same mounting plate is fixedly provided between the rear walls of the two vertical plates of the n-type bottom plate, and an exhaust fan blade is rotatably provided on the front side of the mounting plate, and the exhaust fan blade is provided between the collection box and the first through hole; The exhaust fan blades are driven to rotate by a third rotating mechanism, and the third rotating mechanism is driven to work by the driving mechanism.

[0007] Further, the third rotating mechanism comprises a first bevel gear and a second bevel gear; A second bevel gear is rotatably provided on the front wall of the mounting plate via a first rotating shaft, and the upper end of the second bevel gear is meshed with the first bevel gear; The first bevel gear is rotated by the second rotating shaft and is arranged at the lower end of the horizontal plate of the n-shaped bottom plate; The first bevel gear is arranged at the rear side of the first through hole; The exhaust fan blades are fixed on the front wall of the second bevel gear via a fixed shaft; The second rotating shaft is driven to rotate by the driving mechanism.

[0008] Further, the driving mechanism comprises a driving motor, a first spur gear, and a second spur gear; The upper end of the second rotating shaft is rotatably connected to a horizontal plate that penetrates the n-shaped bottom plate and is fixed with a first spur gear; A driving motor is provided on one side of the first spur gear, and a second spur gear is fixedly provided on the output shaft of the driving motor; The first spur gear is meshed with the second spur gear; The first spur gear drives the screening mechanism and the first rotating mechanism to work by rotating.

[0009] Further, the screening mechanism comprises a first reciprocating screw, a first threaded slider, a first rectangular slider, a first connecting rod, a second rectangular slider, an expansion plate, and a second connecting rod; A first reciprocating screw is fixedly provided at the center of the upper end of the first spur gear, and a first threaded slider is threadedly sleeved on the outer wall of the first reciprocating screw; The two support plates are respectively provided with a first rectangular through groove, and the two first rectangular through grooves are respectively slidably provided with a first rectangular sliding block; The left and right side walls of the first threaded slider are respectively fixedly connected to the first rectangular slider adjacent thereto via connecting rods; First connecting shafts are fixedly disposed on the outer walls of the two first rectangular sliding blocks, respectively, and the two first connecting shafts are slidably penetrated between the first rectangular sliding grooves adjacent thereto; The first ends of the first connecting rods are rotatably sleeved on the two first connecting shafts respectively; Rectangular sliding grooves are respectively provided on the side walls of the two vertical plates of the n-type support plate close to the first through hole; A second rectangular sliding block is slidably disposed in each of the two rectangular sliding grooves, and a second connecting shaft is fixedly disposed on the outer wall of each of the two second rectangular sliding blocks. The two second connecting shafts are slidably disposed between each of the two adjacent rectangular sliding grooves. The second ends of the two first connecting rods are respectively rotatably sleeved on the second connecting shafts close thereto; An expansion plate is fixedly provided at the upper ends of the two second rectangular sliding blocks, and a second rectangular through groove is provided on the top wall of the two rectangular sliding grooves, respectively. The two expansion plates are respectively slidably penetrated between the second rectangular through grooves adjacent thereto; A third connecting shaft is fixedly provided in the middle of the left and right side walls of the sieve plate, and the upper ends of the two expansion plates are rotatably connected to the third connecting shafts close thereto. A fourth connecting shaft is fixedly provided in the middle of the left and right side walls of the sieve plate, respectively, and two fourth connecting shafts are respectively provided above the third connecting shafts close thereto; The first ends of the second connecting rods are rotatably sleeved on the outer walls of the two fourth connecting shafts, and the two second connecting rods are movably arranged on the outer sides of the first connecting rods close thereto; A fifth connecting shaft is fixedly disposed on the outer walls of the two vertical plates of the n-type bottom plate respectively; The second ends of the two second connecting rods are respectively rotatably sleeved on the outer wall of the fifth connecting shaft close thereto.

[0010] Furthermore, the first rotating mechanism comprises a hollow main shaft, a rectangular rod, a fixed block, and an arc-shaped sliding block; A rectangular through hole is provided on the first reciprocating screw rod, and a rectangular rod is slidably provided in the rectangular through hole; A hollow main shaft is fixedly provided at the upper end of the rectangular rod, and a fixing block is fixedly provided at the upper end of the hollow main shaft; The first ends of the four knocking rods are rotatably mounted on the four side walls of the fixing block respectively; A groove is provided on the side wall of the inner cylinder, and four arc-shaped sliding blocks are slidably provided in the groove; The four arc-shaped sliding blocks are respectively rotatably connected to the second ends of the knocking rods adjacent thereto; The four knocking rods respectively drive the lifting mechanism and the second rotating mechanism to work by rotating.

[0011] Furthermore, the lifting mechanism comprises a second reciprocating screw rod and a cross connecting rod; A cross connecting rod is provided on the top wall of the outer barrel, and a second reciprocating screw rod is fixedly provided at the lower end of the intersection of the horizontal rod and the vertical rod of the cross connecting rod; The fixing block is threadedly sleeved on the outer side wall of the second reciprocating screw rod, and the hollow main shaft is movably sleeved on the outer side of the second reciprocating screw rod.

[0012] Further, the second rotating mechanism comprises a third spur gear and a gear ring wheel; The outer walls of the four knocking rods are respectively provided with third spur gears, and the four third spur gears are respectively arranged between the arc-shaped slider and the rotating rod close thereto; The upper ends of the four third spur gears are meshed with a same gear ring wheel, and the gear ring wheel is fixed on the inner wall of the inner cylinder; The gear ring wheel is arranged on the upper side of the groove.

[0013] Furthermore, a plurality of rollers are rotatably provided between the lower ends of the two vertical plates of the n-type bottom plate, and the collecting box is detachably and movably provided on the upper ends of the plurality of rollers.

[0014] Advantages of the present invention: The rotating rod of the present invention can drive the knocking rod to rotate in the inner cylinder under the drive of the second rotating mechanism, and rotate and knock the miscellaneous grains located inside the inner cylinder, and the inner cylinder will also rotate accordingly under the drive of the first rotating mechanism, and move up and down synchronously with the cooperation of the lifting mechanism during the rotation, which has the effect of accelerating the contact between the internal miscellaneous grains and the knocking rod, and indirectly improves the threshing efficiency. The screening mechanism of the present invention will also perform screening work synchronously under the drive of the driving mechanism, and further refine the miscellaneous grains that have been threshed. The screening mechanism and the first rotating mechanism share a driving mechanism, which saves energy. The third rotating mechanism of the present invention will also synchronously drive the exhaust fan blades to rotate while the equipment is working, so as to blow off the knocked-down grain husks.

[0015] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation of the inner cylinder of the present invention; Figure 3 It is a schematic diagram of the installation of the cross connecting rod of the present invention; Figure 4 It is a schematic diagram of the installation of the rotating rod and the knocking rod of the present invention; Figure 5 It is a schematic diagram of the working principle of the second rotating mechanism of the present invention; Figure 6 It is a schematic diagram of the working principle of the first rotating mechanism of the present invention; Figure 7 It is a schematic diagram of the working principle of the screening mechanism of the present invention; Figure 8 is a schematic diagram of the overall structure of the n-type base plate of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the outer barrel of the present invention; Fig.10 It is a side sectional view of the outer barrel and the inner barrel of the present invention; Fig.11 It is a side sectional view of the overall structure of the first rotating mechanism of the present invention; Fig.12 It is a schematic diagram of the working principle of the lifting mechanism of the present invention; Fig.13 is a schematic diagram of the overall structure of the third rotating mechanism of the present invention; Fig.14 This is a schematic diagram of the position and shape of the second through hole at the bottom of the outer barrel of the present invention; Fig.15 It is a schematic diagram of the installation of the flexible guide tube of the present invention.

[0018] Reference numerals: 1 is an n-type bottom plate, 2 is a support plate, 3 is an outer barrel, 4 is a collecting box, 5 is a drum, 6 is a sieve plate, 7 is a second connecting rod, 8 is a first connecting rod, 9 is a cross connecting rod, 10 is a first rectangular slider, 11 is an inner barrel, 12 is a first reciprocating screw rod, 13 is a first threaded slider, 14 is a first spur gear, 15 is a second spur gear, 16 is a second reciprocating screw rod, 17 is a fixed block, 18 is a knocking rod, 19 is a third spur gear, 20 is a gear ring wheel, 21 is a hollow main shaft, 22 is an arc slider, 23 is a second rectangular slider, 24 is a second bevel gear, 25 is a first bevel gear, and 26 is an exhaust fan blade; 101 is a rectangular slide groove, 102 is a first through hole, and 1011 is a second rectangular through groove; 201 is a first rectangular slider; 1101 is a groove; 1801 is a rotating rod; 2101 is a rectangular rod; 2301 is an expansion board. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0021] refer to Figures 1 to 15 A grain drum threshing device comprises an n-type bottom plate 1, a collecting box 4, a support plate 2, an outer barrel 3, a sieve plate 6, an inner barrel 11, a knocking rod 18, a rotating rod 1801, an exhaust fan blade 26, a lifting mechanism, a first rotating mechanism, a second rotating mechanism, a driving mechanism, a screening mechanism, and a third rotating mechanism; An outer barrel 3 is installed above the horizontal plate of the n-type bottom plate 1, and the lower ends of the outer barrel 3 are fixedly connected to the upper ends of the horizontal plate of the n-type bottom plate 1 through the support plates 2. The n-type bottom plate 1 is a supporting component of the device. The outer barrel 3 and the n-type bottom plate 1 are a whole, and the two are fixedly connected through the support plates 2 on both sides. A driving mechanism is installed below the outer barrel 3. The driving mechanism is fixedly installed on the upper end of the horizontal plate of the n-type bottom plate 1. Since the bottom of the outer barrel 3 and the top of the horizontal plate of the n-type bottom plate 1 are supported by two support plates 2, there is a space for placing the driving mechanism. The driving mechanism provides driving force for the device to work. A first through hole 102 is installed on the horizontal plate of the n-type bottom plate 1, and the first through hole 102 is installed on the front side of the driving mechanism; A collecting box 4 is detachably mounted below the horizontal plate of the n-shaped bottom plate 1. The collecting box 4 is detachably mounted below the first through hole 102. The first through hole 102 is connected to the opening at the top of the collecting box 4 below. The grains and cereals that have been knocked will fall into the collecting box 4 through the first through hole 102. The collecting box 4 is used to collect the completely threshed grains and cereals. A sieve plate 6 is movably mounted above the first through hole 102, a second through hole is provided on the bottom wall of the outer barrel 3, and the sieve plate 6 is movably mounted below the second through hole; The sieve plate 6 is driven by the sieving mechanism, and the sieving mechanism is driven by the driving mechanism to work. The sieve plate 6 reciprocates under the drive of the sieving mechanism to further sieve the mixture of the knocked grains and husks, ensuring that the threshed grains after sieving can pass through the sieve plate 6 and enter the collection box, while the husks are filtered and retained on the upper end of the sieve plate 6; An inner cylinder 11 is movably mounted in the outer barrel 3. The inner cylinder 11 is driven to rotate by a first rotating mechanism. The first rotating mechanism is driven to work by a driving mechanism. The driving mechanism provides a driving force for the first rotating mechanism, so that the inner cylinder 11 can start to rotate. During the rotation process, the inner cylinder 11 has the ability to move up and down through a lifting mechanism described later. The inner cylinder 11 is slidably mounted on the inner wall of the outer cylinder 3. The inner cylinder 11 is driven to slide by the lifting mechanism. The inner cylinder 11 drives the lifting mechanism to work by rotating. A plurality of knocking rods 18 are rotatably mounted in the inner cylinder 11, and a rotating rod 1801 is fixedly mounted on each of the knocking rods 18; The plurality of rotating rods 1801 are driven to rotate by the second rotating mechanism, and the inner cylinder 11 drives the second rotating mechanism to work by rotating. The plurality of rotating rods 1801 start to rotate under the drive of the first rotating mechanism, and perform rotational knocking on the grains in the inner cylinder 11, which can accelerate the threshing effect in cooperation with the knocking rod 18; The same mounting plate is fixedly installed between the rear walls of the two vertical plates of the n-shaped bottom plate 1, and an exhaust fan blade 26 is rotatably installed on the front side of the mounting plate. The exhaust fan blade 26 is installed between the collecting box 4 and the first through hole 102. The exhaust fan blade 26 can be synchronously rotated under the drive of the third rotating mechanism described later to discharge the fine sand and dust in the threshed grains; The exhaust fan blades 26 are driven to rotate by the third rotating mechanism, and the third rotating mechanism is driven to work by the driving mechanism.

[0022] The third rotating mechanism comprises a first bevel gear 25 and a second bevel gear 24; A second bevel gear 24 is rotatably mounted on the front wall of the mounting plate via a first rotating shaft, and a first bevel gear 25 is meshedly mounted on the upper end of the second bevel gear 24; The first bevel gear 25 is rotatably mounted on the lower end of the horizontal plate of the n-type bottom plate 1 through the second rotating shaft; The first bevel gear 25 is installed at the rear side of the first through hole 102; The exhaust fan blades 26 are fixedly mounted on the front wall of the second bevel gear 24 via a fixed shaft; The second rotating shaft is driven to rotate by the driving mechanism. The second rotating shaft starts to rotate under the drive of the driving mechanism, and drives the first bevel gear 25 installed coaxially therewith during the rotation. The first bevel gear 25 drives the second bevel gear 24 meshing therewith during the rotation, so that the second bevel gear 24 has the ability to rotate. The second bevel gear 24 can drive the exhaust fan blades 26 installed coaxially therewith to start rotating during the rotation. Fig.13 The threshed grains will pass through the first through hole 102 and enter the collecting box 4 below. In the process of the grains falling into the collecting box 4, the exhaust fan blades 26 will blow air to the threshed grains, blowing away the dust and sand with a mass smaller than the grains. During use, a dust bag can be installed on the left side of the collecting box 4 to prevent dust from spreading and floating out.

[0023] The driving mechanism comprises a driving motor, a first spur gear 14, and a second spur gear 15; The upper end of the second rotating shaft rotates through the horizontal plate of the n-shaped bottom plate 1 and is fixedly mounted with the first spur gear 14; A driving motor is installed on one side of the first spur gear 14, and a second spur gear 15 is fixedly mounted on the output shaft of the driving motor; The first spur gear 14 is meshed with the second spur gear 15; The first spur gear 14 drives the screening mechanism and the first rotating mechanism to work by rotating, and the driving motor is started. The output shaft of the driving motor starts to rotate and drives the second spur gear 15 fixed thereto, so that the second spur gear 15 starts to rotate. During the rotation process, the second spur gear 15 can drive the first spur gear 14 meshing with it, so that the first spur gear 14 starts to rotate. During the rotation process, the first spur gear 14 can drive the second rotating shaft and the first reciprocating screw 12 described later to start rotating. The driving motor is preferably a servo motor, and its rotation speed can be freely adjusted to increase or decrease the output power of the equipment.

[0024] The screening mechanism comprises a first reciprocating screw 12, a first threaded slider 13, a first rectangular slider 10, a first connecting rod 8, a second rectangular slider 23, an expansion plate 2301, and a second connecting rod 7; A first reciprocating screw rod 12 is fixedly mounted at the center of the upper end of the first spur gear 14, and a first threaded slider 13 is threadedly sleeved on the outer wall of the first reciprocating screw rod 12; The two support plates 2 are respectively provided with first rectangular through grooves 201, and first rectangular sliding blocks 10 are respectively slidably installed in the two first rectangular through grooves 201; The left and right side walls of the first threaded slider 13 are respectively fixedly connected to the first rectangular slider 10 adjacent thereto via connecting rods; First connecting shafts are fixedly mounted on the outer walls of the two first rectangular sliding blocks 10, respectively. The two first connecting shafts are respectively slidably arranged between the first rectangular sliding grooves 201 adjacent thereto; The first ends of the first connecting rods 8 are rotatably mounted on the two first connecting shafts respectively; Rectangular slide grooves 101 are respectively provided on the side walls of the two vertical plates of the n-type support plate 1 close to the first through hole 201; The second rectangular slide blocks 23 are slidably installed in the two rectangular slide grooves 101, and the second connecting shafts are fixedly installed on the outer walls of the two second rectangular slide blocks 23. The two second connecting shafts are slidably penetrated between the rectangular slide grooves 101 adjacent thereto. The second ends of the two first connecting rods 8 are respectively rotatably sleeved on the second connecting shafts close thereto; The upper ends of the two second rectangular sliding blocks 23 are respectively fixed with expansion plates 2301, and the top walls of the two rectangular slides 101 are respectively provided with second rectangular through grooves 1011, and the two expansion plates 2301 are respectively slidably arranged between the second rectangular through grooves 1011 adjacent thereto; The middle of the left and right side walls of the sieve plate 6 are respectively fixedly mounted with third connecting shafts, and the upper ends of the two expansion plates 2301 are respectively rotatably connected to the third connecting shafts close thereto; The middle of the left and right side walls of the sieve plate 6 are respectively fixed with fourth connecting shafts, and the two fourth connecting shafts are respectively installed above the third connecting shafts close thereto; The first ends of the second connecting rods 7 are rotatably mounted on the outer walls of the two fourth connecting shafts, and the two second connecting rods 7 are movably mounted on the outer sides of the first connecting rods 8 close thereto. The outer walls of the two vertical plates of the n-shaped bottom plate 1 are respectively fixed with a fifth connecting shaft; The second ends of the two second connecting rods 7 are respectively rotatably sleeved on the outer wall of the fifth connecting shaft close thereto, Fig.12During the rotation, the first spur gear 14 also synchronously drives the first reciprocating screw rod 12 to start rotating. During the rotation, the first reciprocating screw rod 12 drives the first threaded slider 13 threadedly mounted thereon to start rotating. Since the activity trajectory of the first threaded slider 13 is limited by the first rectangular sliders 10 on both sides, the cooperation between the first rectangular sliders 10 on both sides and the first through holes 201 matched therewith limits the sliding trajectory of the first rectangular slider 10 and ensures that it will not deviate and fall off during the sliding process. Therefore, the first threaded slider 13 will not be driven by the first reciprocating screw rod 12 to rotate and will only slide up and down. During the up and down sliding process, the first rectangular sliders 10 on both sides respectively drive the first connecting rod 8 matched therewith to start deflecting up and down. During the up and down deflection process, the first connecting rod 8 on both sides respectively drives the second rectangular slider 23 matched therewith to start sliding back and forth. Figure 7 In the process of sliding back and forth, the second rectangular sliders 23 on both sides respectively drive the expansion plates 2301 fixedly installed therewith to start sliding back and forth, and the sieve plate 6 rotatably installed between the two expansion plates 2301 can now have a tendency to move back and forth, and while the sieve plate 6 has a tendency to move back and forth, the second connecting rods 7 on both sides will also start to rotate back and forth, and since the rotation centers of the second connecting rods 7 on both sides are fixed, the second connecting rods 7 on both sides will have a linkage cooperation with the sieve plate 6 with a tendency to move back and forth when rotating back and forth, so that the sieve plate 6 can swing back and forth, avoiding the single movement of the sieve plate 6, and further increasing the screening efficiency of the sieve plate 6 Ability, the sieve plate 6 and the second through hole in the bottom wall of the outer barrel 3 are fixedly connected by a flexible guide tube, the outer barrel 3 is fixed during the entire working process, so the flexible guide tube will move passively with the movement of the sieve plate 6, and can guide the miscellaneous grains in the barrel into the sieve plate 6. The flexible guide tube part connected to the sieve plate 6 is detachably installed, and the installation method can be a threaded connection. The flexible guide tube is similar to a flexible smoke exhaust barrel, which is a prior art and will not be elaborated here. It should be noted that in order to ensure that the miscellaneous grains in the barrel can smoothly pass through the second through hole at the bottom and enter the flexible guide tube, the bottom wall of the outer barrel 3 can be set to a slope, and the bottom end of the slope can be close to the second through hole.

[0025] The first rotating mechanism comprises a hollow main shaft 21, a rectangular rod 2101, a fixed block 17, and an arc-shaped slider 22; A rectangular through hole is provided on the first reciprocating screw rod 12, and a rectangular rod 2101 is slidably installed in the rectangular through hole; A hollow main shaft 21 is fixedly mounted on the upper end of the rectangular rod 2101, and a fixing block 17 is fixedly mounted on the upper end of the hollow main shaft 21; The first ends of the four knocking rods 18 are rotatably mounted on the four side walls of the fixed block 17 respectively; A groove 1101 is provided on the side wall of the inner cylinder 11, and four arc-shaped sliding blocks 22 are slidably installed in the groove 1101; The four arc-shaped slide blocks 22 are respectively rotatably connected to the second ends of the knocking rods 18 adjacent thereto; The four knocking rods 18 respectively drive the lifting mechanism and the second rotating mechanism to work, refer to Fig.11 The first reciprocating screw 12 drives the rectangular rod 2101 to start rotating synchronously during the rotation process. The hollow main shaft 21 fixedly mounted on the rectangular rod 2101 has the ability to rotate at this time, and drives the fixed block 17 fixed thereto to start rotating during the rotation process. The fixed block 17 drives the knocking rod 18 installed on its four walls to start rotating during the rotation process. Figure 5 The rotation trajectory of the four knocking rods 18 is limited by the four arc-shaped sliders 22 that cooperate with them, and the four arc-shaped sliders 22 only slide in the groove 1101. Therefore, the rotation trajectory of the four knocking rods 18 is limited, and they will contact the cereals and grains during the rotation process to achieve the preliminary knocking and threshing effect on the cereals and grains. The fixed block 17 fixed to the hollow main shaft 21 will also drive the lifting mechanism described later while rotating.

[0026] The lifting mechanism comprises a second reciprocating screw rod 16 and a cross connecting rod 9; A cross connecting rod 9 is installed on the top wall of the outer barrel 3, and a second reciprocating screw rod 16 is fixedly installed at the lower end of the intersection of the horizontal rod and the vertical rod of the cross connecting rod 9; The fixing block 17 is threadedly sleeved on the outer side wall of the second reciprocating screw rod 16, and the hollow main shaft 21 is movably sleeved on the outer side of the second reciprocating screw rod 16. Figure 3 During the rotation process, the fixed block 17 is threadedly installed on the second reciprocating screw 16, and the second reciprocating screw 16 is fixed, so the fixed block 17 will slide up and down along the second reciprocating screw 16, and the fixed block 17 will also drive the four knocking rods 18 to move up and down while moving up and down. The arc-shaped sliding block 22 cooperating with the four knocking rods 18 will also have the ability to move up and down and drive the inner cylinder 11 to move up and down through the contact between the top walls of the grooves 1101. The effect at this time is to increase the contact area between the knocking rods 18 and the grains inside the inner cylinder 11, thereby increasing the threshing efficiency.

[0027] The second rotating mechanism comprises a third spur gear 19 and a gear ring wheel 20; The outer walls of the four knocking rods 18 are respectively fixed with third spur gears 19, and the four third spur gears 19 are respectively installed between the arc-shaped sliders 22 and the rotating rods 1801 close thereto; The upper ends of the four third spur gears 19 are meshed with a same gear ring wheel 20, which is fixedly mounted on the inner wall of the inner cylinder 11; The gear ring wheel 20 is mounted on the upper side of the groove 1101, referring to Figure 4When the four knocking rods 18 rotate, they will also drive the third spur gear 19 fixed thereon to start to revolve around the center of the inner cylinder 11, and mesh with the gear ring wheel 20 while revolving. The gear ring wheel 20 is fixed in the cylinder wall of the inner cylinder 11. Therefore, the four third spur gears 19 will start to rotate and drive the knocking rods 18 to rotate while rotating. The rotating rod 1801 fixedly mounted on the four knocking rods 18 now has the ability to rotate, so that the knocking rods 18 rotate while the rotating rod 1801 rotates synchronously, further The threshing effect is further enhanced. It should be noted that in order to prevent the grains from getting stuck in the meshing portion between the gear ring wheel 20 and the third spur gear 19 during threshing in the barrel, the top of the gear ring wheel 20 can be relatively wider to block the grains from falling off. The top wall of the gear ring wheel 20 can also be designed with a certain inclination angle to tilt it toward the center of the outer barrel 3. At this time, the grains that fall off to the top of the gear ring wheel 20 will be affected by gravity and fall off along the top wall of the gear ring wheel 20 at a certain inclination angle toward the center of the outer barrel 3, thereby completely achieving the effect of isolating the grains.

[0028] A plurality of drums 5 are rotatably mounted between the lower ends of the two vertical plates of the n-shaped bottom plate 1 , and a collection box 4 is detachably mounted on the upper ends of the plurality of drums 5 , so as to facilitate the user to extract and put in the collection box 4 .

[0029] Implementation method of the present invention: The device is placed on a horizontal surface, the driving motor is started, and the grains to be threshed are put into the hollow area formed by the upper end of the top wall of the outer barrel 3 and the cross connecting rod 9. At this time, the four knocking rods 18 start to rotate and knock the grains inside during the rotation. The four knocking rods 18 drive the inner barrel 11 to move up and down through the four arc-shaped sliders 22 while rotating, thereby increasing the contact area between the grains and the knocking rods 18; The four knocking rods 18 will rotate while rotating, and during the rotation process, they will drive the rotating lever 1801 fixedly sleeved thereon to rotate, thereby increasing the threshing effect of the grains; The mixture of grains and husks after threshing will fall from the second through hole at the lower end of the outer barrel 3 through the flexible guide tube onto the sieve plate 6 below. The sieve plate 6 will swing back and forth under the drive of the screening mechanism, separating the husks from being retained on it, and allowing the threshed grains to pass through the sieve plate 6 and the first through hole 102 into the collection box 4 below. During this process, the exhaust fan blades 26 will work synchronously to blow away the fine sand and husks that are less than the mass of the grains again, ensuring that there are no debris in the collected grains. When the collection box 14 is fully loaded, the collection box 14 is manually pulled to slide outward from the plurality of drums 5; When the sieve plate 6 needs to be cleaned, it is only necessary to remove the connection between the flexible guide tube and the sieve plate 6 to completely expose the sieve plate 6, and then the sieve plate 6 can be cleaned.

[0030] The rotating rod of the present invention can drive the knocking rod to rotate in the inner cylinder under the drive of the second rotating mechanism, and rotate and knock the miscellaneous grains located inside the inner cylinder, and the inner cylinder will also rotate accordingly under the drive of the first rotating mechanism, and move up and down synchronously with the cooperation of the lifting mechanism during the rotation, which has the effect of accelerating the contact between the internal miscellaneous grains and the knocking rod, and indirectly improves the threshing efficiency. The screening mechanism of the present invention will also perform screening work synchronously under the drive of the driving mechanism, and further refine the miscellaneous grains that have been threshed. The screening mechanism and the first rotating mechanism share a driving mechanism, which saves energy. The third rotating mechanism of the present invention will also synchronously drive the exhaust fan blades to rotate while the equipment is working, so as to blow off the knocked-down grain husks.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grain drum threshing device, characterized by: It comprises an n-type bottom plate (1), a collecting box (4), a supporting plate (2), an outer barrel (3), a screen plate (6), an inner barrel (11), a knocking rod (18), a rotating rod (1801), exhaust fan blades (26), a lifting mechanism, a first rotating mechanism, a second rotating mechanism, a driving mechanism, a screening mechanism, and a third rotating mechanism; An outer barrel (3) is provided above the transverse plate of the n-type bottom plate (1), and two sides of the lower end of the outer barrel (3) are fixedly connected to two sides of the upper end of the transverse plate of the n-type bottom plate (1) via support plates (2); A driving mechanism is provided below the outer barrel (3), and the driving mechanism is fixedly arranged on the upper end of the horizontal plate of the n-type bottom plate (1); A first through hole (102) is provided on the transverse plate of the n-type base plate (1), and the first through hole (102) is provided on the front side of the driving mechanism; A collection box (4) is detachably provided below the horizontal plate of the n-type bottom plate (1); the collection box (4) is detachably provided below the first through hole (102); A sieve plate (6) is movably provided above the first through hole (102), a second through hole is provided on the bottom wall of the outer barrel (3), and the sieve plate (6) is movably provided below the second through hole; The sieve plate (6) is driven to move by the sieving mechanism, and the sieving mechanism is driven to work by the driving mechanism; An inner cylinder (11) is movably disposed inside the outer cylinder (3), and the inner cylinder (11) is driven to rotate by a first rotating mechanism, and the first rotating mechanism is driven to work by the driving mechanism; The inner cylinder (11) is slidably arranged on the inner wall of the outer barrel (3); the inner cylinder (11) is driven to slide by a lifting mechanism; and the inner cylinder (11) drives the lifting mechanism to work by rotating; A plurality of knocking rods (18) are rotatably disposed in the inner cylinder (11), and a plurality of rotating rods (1801) are fixedly sleeved on the knocking rods (18); The plurality of rotating rods (1801) are all driven to rotate by a second rotating mechanism, and the inner cylinder (11) drives the second rotating mechanism to work by rotating; A same mounting plate is fixedly provided between the rear walls of the two vertical plates of the n-type bottom plate (1), an exhaust fan blade (26) is rotatably provided on the front side of the mounting plate, and the exhaust fan blade (26) is provided between the collection box (4) and the first through hole (102); The exhaust fan blades (26) are driven to rotate by a third rotating mechanism, and the third rotating mechanism is driven to work by the driving mechanism.

2. The grain drum threshing device according to claim 1 is characterized in that: The third rotating mechanism comprises a first bevel gear (25) and a second bevel gear (24); A second bevel gear (24) is rotatably provided on the front wall of the mounting plate via a first rotating shaft, and a first bevel gear (25) is meshed with an upper end of the second bevel gear (24); The first bevel gear (25) is rotatably arranged at the lower end of the horizontal plate of the n-shaped bottom plate (1) via a second rotating shaft; The first bevel gear (25) is arranged on the rear side of the first through hole (102); The exhaust fan blade (26) is fixed on the front wall of the second bevel gear (24) via a fixed shaft; The second rotating shaft is driven to rotate by the driving mechanism.

3. The grain drum threshing device according to claim 2 is characterized in that: The driving mechanism comprises a driving motor, a first spur gear (14), and a second spur gear (15); The upper end of the second rotating shaft is rotatably connected to a horizontal plate that penetrates the n-shaped bottom plate (1) and is fixed with a first spur gear (14); A driving motor is provided on one side of the first spur gear (14), and a second spur gear (15) is fixedly sleeved on the output shaft of the driving motor; The first spur gear (14) and the second spur gear (15) are meshed with each other; The first spur gear (14) drives the screening mechanism and the first rotating mechanism to work by rotating.

4. The grain drum threshing device according to claim 3 is characterized by: The screening mechanism comprises a first reciprocating screw (12), a first threaded slider (13), a first rectangular slider (10), a first connecting rod (8), a second rectangular slider (23), an expansion plate (2301), and a second connecting rod (7); A first reciprocating screw rod (12) is fixedly provided at the center position of the upper end of the first spur gear (14), and a first threaded slider (13) is threadedly sleeved on the outer wall of the first reciprocating screw rod (12); The two support plates (2) are respectively provided with a first rectangular through groove (201), and a first rectangular sliding block (10) is slidably disposed in each of the two first rectangular through grooves (201); The left and right side walls of the first threaded slider (13) are respectively fixedly connected to the first rectangular slider (10) adjacent thereto via connecting rods; First connecting shafts are fixedly disposed on the outer walls of the two first rectangular sliding blocks (10), and the two first connecting shafts are slidably disposed between the first rectangular sliding grooves (201) adjacent thereto; The first ends of the first connecting rods (8) are rotatably sleeved on the two first connecting shafts respectively; Rectangular sliding grooves (101) are respectively provided on the side walls of the two vertical plates of the n-type support plate (1) close to the first through hole (201); A second rectangular sliding block (23) is slidably disposed in each of the two rectangular sliding grooves (101), and a second connecting shaft is fixedly disposed on the outer wall of each of the two second rectangular sliding grooves (23). The two second connecting shafts are slidably disposed between each of the adjacent rectangular sliding grooves (101); The second ends of the two first connecting rods (8) are respectively rotatably sleeved on the second connecting shafts adjacent thereto; An expansion plate (2301) is fixedly provided at the upper ends of the two second rectangular sliding blocks (23), and a second rectangular through groove (1011) is provided on the top wall of the two rectangular sliding grooves (101), and the two expansion plates (2301) are respectively slidably arranged to penetrate between the second rectangular through grooves (1011) adjacent thereto; A third connecting shaft is fixedly provided in the middle of the left and right side walls of the sieve plate (6), and the upper ends of the two expansion plates (2301) are rotatably connected to the third connecting shafts adjacent thereto; Fourth connecting shafts are fixedly provided at the middle of the left and right side walls of the sieve plate (6), respectively, and the two fourth connecting shafts are respectively arranged above the third connecting shafts adjacent thereto; The first ends of the second connecting rods (7) are rotatably sleeved on the outer walls of the two fourth connecting shafts, and the two second connecting rods (7) are movably arranged on the outer sides of the first connecting rods (8) adjacent thereto; A fifth connecting shaft is fixedly disposed on the outer walls of the two vertical plates of the n-type bottom plate (1); The second ends of the two second connecting rods (7) are respectively rotatably sleeved on the outer wall of the fifth connecting shaft adjacent thereto.

5. The grain drum threshing device according to claim 4 is characterized in that: The first rotating mechanism comprises a hollow main shaft (21), a rectangular rod (2101), a fixed block (17), and an arc-shaped sliding block (22); A rectangular through hole is provided on the first reciprocating screw rod (12), and a rectangular rod (2101) is slidably provided in the rectangular through hole; A hollow main shaft (21) is fixedly provided at the upper end of the rectangular rod (2101), and a fixing block (17) is fixedly provided at the upper end of the hollow main shaft (21); The first ends of the four knocking rods (18) are rotatably mounted on the four side walls of the fixing block (17); A groove (1101) is provided on the side wall of the inner cylinder (11), and four arc-shaped sliding blocks (22) are slidably provided in the groove (1101); The four arc-shaped slide blocks (22) are respectively rotatably connected to the second ends of the knocking rods (18) adjacent thereto; The four knocking rods (18) respectively drive the lifting mechanism and the second rotating mechanism to work by rotating.

6. The grain drum threshing device according to claim 5, characterized in that: The lifting mechanism comprises a second reciprocating screw rod (16) and a cross connecting rod (9); A cross connecting rod (9) is provided on the top wall of the outer barrel (3), and a second reciprocating screw rod (16) is fixedly provided at the lower end of the intersection of the horizontal rod and the vertical rod of the cross connecting rod (9); The fixed block (17) is threadedly sleeved on the outer wall of the second reciprocating screw (16), and the hollow main shaft (21) is movably sleeved on the outer side of the second reciprocating screw (16).

7. The grain drum threshing device according to claim 5, characterized in that: The second rotating mechanism comprises a third spur gear (19) and a gear ring wheel (20); A third spur gear (19) is fixedly sleeved on the outer walls of the four knocking rods (18), and the four third spur gears (19) are respectively arranged between the arc-shaped sliding blocks (22) and the rotating rod (1801) adjacent thereto; The upper ends of the four third spur gears (19) are meshed with a same gear ring wheel (20), and the gear ring wheel (20) is fixed on the inner wall of the inner cylinder (11); The gear ring wheel (20) is arranged on the upper side of the groove (1101).

8. The grain drum threshing device according to claim 1 is characterized by: A plurality of rollers (5) are rotatably arranged between the lower ends of the two vertical plates of the n-type bottom plate (1), and the collection box (4) is detachably arranged on the upper ends of the plurality of rollers (5).

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