Mandrel mechanical crushing type corn seed lossless thresher

Abstract

The invention discloses a core shaft mechanical crushing type corn seed lossless thresher, and relates to the technical field of agricultural machinery, the core shaft mechanical crushing type corn seed lossless thresher comprises a box body, an ear crushing device, a rubbing threshing mechanism and a screening impurity removal mechanism are sequentially arranged in the box body from top to bottom, and the ear crushing device comprises an ear fixing device, a row crushing cylinder assembly and an ear crushing assembly; corn ears are uniformly crushed and threshed through a mechanical structure, the problem that the threshing rate is low due to the fact that corn parent ears are different in size and shape is solved, and the working capacity of the corn threshing machine is remarkably improved. The working efficiency is improved through the mode that the eight sets of mandrel crushing devices are arranged in parallel and work synchronously.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and more particularly to the technical field of a core shaft mechanical crushing type corn seed lossless thresher. Background Art

[0002] Corn is my country's largest crop, accounting for 40% of total grain output and a key component of food security. my country's corn germplasm resources are relatively scarce. Research into corn breeding and the development of an efficient breeding technology system can help break the international monopoly and serve as a crucial foundation for ensuring national food security.

[0003] During the corn breeding process, it is necessary to thresh the ears of corn parents of different varieties for subsequent planting and breeding research. Manual threshing is time-consuming, labor-intensive and costly, so mechanical threshing is imperative. Existing corn ear threshers mostly use a vertical threshing drum with an adjustable threshing chamber to thresh by kneading at low speed rotation, which has a better threshing effect on corn ears with regular ears and uniform size. However, the ears of corn parents of different varieties are of different sizes and shapes, and the core shaft strength is also different. The existing single-ear thresher for corn cannot effectively address this feature, and the traditional thresher is not effective in threshing the kernels at the tip of the corn ear, resulting in a low threshing rate and the occurrence of impurities, which affects the breeding efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the technical problems of poor applicability of traditional corn single-ear thresher for threshing corn parent ears, low threshing rate, low working efficiency, and mixing of threshed core shafts and grains. The present invention provides a core shaft mechanical crushing corn seed non-destructive thresher.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] The present invention provides a core shaft mechanical crushing type non-destructive corn seed thresher, comprising a box body, wherein an ear crushing device, a kneading threshing mechanism and a screening and impurity removal mechanism are sequentially arranged in the box body from top to bottom, the ear crushing device comprising an ear fixing device, a continuous crushing barrel assembly and an ear crushing assembly;

[0007] The corn ear fixing device includes a movable mounting plate, a plurality of flexible fixing blocks arranged in parallel at the bottom of the movable mounting plate, and a lifting cylinder arranged at the top of the movable mounting plate to drive the movable mounting plate to move up and down. The bottom of the lifting cylinder is fixed to the top of the box body. Each flexible fixing block is pushed into the row of corn ear crushing cylinders by the lifting cylinder to compact the corn ears.

[0008] The continuous crushing barrel assembly includes a plurality of corn ear crushing barrels arranged in parallel on the left side wall of the box body. The number of corn ear crushing barrels is the same as the number of flexible fixing blocks, and they correspond one to one. The top of each corn ear crushing barrel is provided with a square hole allowing the corresponding flexible fixing block to pass through. The bottom of each corn ear crushing barrel is provided with a plurality of sieve holes allowing corn ear fragments to pass through. Each corn ear crushing barrel is provided with an infrared sensor responsible for detecting the placement of corn ears.

[0009] The fruit cluster crushing assembly includes multiple fruit cluster crushing units corresponding to the fruit cluster crushing cylinders one by one. Each fruit cluster crushing unit includes a reciprocating servo electric push rod fixed on the right side wall of the box, an insert rod connected to the reciprocating servo electric push rod through a coupling, a plug arranged at the left end of the insert rod, and a threaded cone cylinder sleeved on the plug. Each threaded cone cylinder can be inserted into the corresponding fruit cluster crushing cylinder. Each threaded cone cylinder includes a conical shell at the left end and a cylindrical body at the right end. The conical shell and the cylindrical body are welded into one. Multiple elastic wall-breaking components are arranged on the conical shell. Each cylindrical body is supported by a T-shaped bearing seat. Each cylindrical body is sleeved with a sprocket. Each sprocket is connected to the motor outside the box through a chain to provide power for the rotation of the threaded cone cylinder.

[0010] Specifically, the corn cob crushing barrel is a corn cob crushing container with a square hole on the top for the corn cob fixing device to act as a corn cob, and a sieve hole of appropriate size at the bottom for the corn cob fragments to fall through.

[0011] In one embodiment, each elastic wall-breaking component includes a mounting base arranged inside the threaded cone, a spike arranged on the mounting base, and a spring sleeved on the spike. One end of the spring is connected to the inner wall of the threaded cone, and the other end is fixed to the mounting base. In the natural state, the spike is located inside the threaded cone. In the squeezed state, the spike passes through the small hole on the side wall of the threaded cone and contacts the corn cob.

[0012] Specifically, the mounting base, which serves as the mounting base for the spikes and spring, is elastic and connected to the inner wall of the cone via a pin. The spikes are responsible for further crushing the corn ears. When the plug enters the threaded cone, the spikes extend from the cone, further crushing the corn ears. The spring resets the spikes after the rod is withdrawn.

[0013] In one embodiment, the kneading threshing mechanism includes a lower threshing plate fixed to the inside of the box by bolts, an upper threshing plate arranged above the lower threshing plate and moving according to a set trajectory, and a moving drive mechanism for driving the upper threshing plate to move. Flexible threshing protrusions are regularly arranged above the lower threshing plate and below the upper threshing plate, and a first guide plate located below the sieve hole is provided on the left side of the lower threshing plate.

[0014] Specifically, the upper threshing plate, with its surface regularly arranged with flexible threshing protrusions, reciprocates forward, backward, and upward along a set trajectory. The lower threshing plate, bolted to the interior of the box and featuring regularly arranged flexible threshing protrusions, works with the upper threshing plate to thresh the corn ear fragments. A first guide plate at the front ensures that all corn ear fragments enter. A lower mounting block is located at the edge of the lower threshing plate to secure it in place.

[0015] In one embodiment, the mobile drive mechanism includes mobile drive assemblies of the same structure arranged on the front and rear sides of the upper threshing plate, each mobile drive assembly includes a first transmission shaft, a first bearing inner seat sleeved at both ends of the first transmission shaft, and a first bearing outer seat sleeved on the outer side of each first bearing inner seat, and the first bearing outer seat is connected to the upper threshing plate through bolts and an upper mounting plate;

[0016] The ends on the same side of the two first transmission shafts are both sleeved with a first pulley, and the other ends on the same side of the two first transmission shafts are both sleeved with a first balancing block that plays a balancing and stabilizing role. The first pulleys are connected to the electric motor outside the box through a V-belt, and each first pulley is provided with a first eccentric block responsible for introducing eccentric motion to make the upper threshing plate move according to the set trajectory.

[0017] Specifically, the first bearing outer seat is connected to the upper threshing plate via bolts and an upper mounting plate, enabling the upper threshing plate to move. The first bearing inner seat performs eccentric motion, transmitting power and causing the upper threshing plate to move along a set trajectory. The first bearing seat (composed of the first bearing inner seat and the first bearing outer seat) is responsible for securing the kneading threshing device to the housing.

[0018] In one embodiment, the screening and impurity removal mechanism is arranged at an angle, and the screening and impurity removal mechanism includes an inclined bracket, a plurality of fish scale screens installed in parallel on the bracket, a slide rail fixed on the left wall inside the box is provided at the left end of the bracket, and a vibration mechanism for driving the bracket to vibrate up and down is provided at the right end of the bracket.

[0019] In one embodiment, the vibration mechanism includes a second transmission shaft, second bearing inner seats sleeved at both ends of the second transmission shaft, and second bearing outer seats sleeved on the outer sides of each second bearing inner seat, and the second bearing outer seat is connected to the right end of the bracket by bolts and a connecting plate;

[0020] One end of the second transmission shaft is provided with a second pulley, and the other end of the second transmission shaft is provided with a second balancing block that plays a balancing and stabilizing role. The second pulley is connected to the motor outside the box through a V-belt, and the second pulley is provided with a second eccentric block that is responsible for introducing eccentric motion to make the bracket move according to the set trajectory.

[0021] Specifically, the second bearing seat (composed of the second inner and outer bearing seats) secures the screening and impurity removal device to the housing. The fish-scale screens leave appropriate gaps for corn kernels to pass through, while the corn cob fragments are continuously lifted and ejected from the screen as the fish-scale screens move.

[0022] In one embodiment, a servo motor is provided outside the box body to provide power for the rotation of the spiral cone; an electric motor is provided outside the box body to provide power for the corn rubbing and threshing device and the screening and impurity removal device through belt drive, and a driving pulley is provided on the output shaft of the motor.

[0023] In one embodiment, a first cross-flow fan for assisting in the transmission and cleaning of core shaft fragments with grains is provided on the box body located above the corn rubbing and threshing device; a second cross-flow fan for blowing out small and light core shaft fragments is provided on the box body located above the screening and impurity removal mechanism; a third cross-flow fan for cooperating with the screening and impurity removal mechanism to screen the core shaft fragments and corn grains is provided on the box body located below the screening and impurity removal mechanism.

[0024] In one embodiment, a second guide plate for discharging corn cob fragments is provided inside the box above the screening and impurity removal mechanism. The second guide plate is tilted on the side wall of the box, and a corn cob fragment outlet is provided at the connection between the second guide plate and the box.

[0025] In one embodiment, a third guide plate for collecting corn kernels is provided inside the box below the screening and impurity removal mechanism. The third guide plate is tilted on the side wall of the box, and a corn kernel outlet is provided at the connection between the third guide plate and the box.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. This invention uses a mechanical structure to uniformly crush corn ears before threshing, solving the problem of low threshing efficiency caused by the varying sizes and shapes of corn parent ears, and significantly improving its operating capacity. The eight sets of core-shaft crushing devices are arranged in parallel and work synchronously to improve work efficiency.

[0028] 2. This invention employs a uniform core-shattering process followed by kneading and threshing using a flexible device, followed by impurity removal. This solves the problem of conventional threshers, where core-shattering during threshing, resulting in impurities in the corn kernels, caused by varying core strengths within the corn cobs. This innovative design reduces manual intervention, lowers labor costs, improves threshing effectiveness and efficiency, and offers a novel technical solution for threshing parent corn ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of a core shaft mechanical crushing type non-destructive thresher for corn seeds according to the present invention;

[0031] Figure 2 yes Figure 1 A cross-sectional view of

[0032] Figure 3 It is a structural diagram of a fruit ear crushing device;

[0033] Figure 4 It is a structural schematic diagram of a fruit ear fixing device;

[0034] Figure 5 1. It is a structural diagram of a fruit ear crushing cylinder;

[0035] Figure 6 It is a structural diagram of the ear crushing component;

[0036] Figure 7 It is a structural schematic diagram of a fruit ear rubbing and threshing device;

[0037] Figure 8 It is a structural diagram of the screening and impurity removal mechanism;

[0038] Figure 9 It is a side view of the box;

[0039] Figure 10 It is a schematic diagram of the structure inside the box;

[0040] Reference numerals: 1. ear crushing device; 2. kneading and threshing mechanism; 3. screening and impurity removal mechanism; 4. box body;

[0041] 101. Fruit ear fixing device; 102. Continuous crushing cylinder assembly; 103. Fruit ear crushing assembly;

[0042] 101.1, lifting cylinder; 101.2, flexible fixing block;

[0043] 102.1, infrared sensor; 102.2, cluster crushing cylinder;

[0044] 103.1. Reciprocating servo electric linear actuator; 103.2. Coupling; 103.3. Spring; 103.4. Spike; 103.5. Mounting base; 103.6. Threaded cone; 103.7. Insert rod; 103.8. Sprocket; 103.9. T-type bearing seat;

[0045] 201, first balancing block; 202, first bearing outer seat; 203, first bearing inner seat; 204, first bearing seat; 205, first pulley; 206, first eccentric weight; 207, upper mounting plate; 208, upper threshing plate; 209, lower threshing plate; 210, first transmission shaft; 211, lower mounting block;

[0046] 301, second pulley; 302, second bearing outer seat; 303, second bearing inner seat; 304, second bearing seat; 305, fish scale screen; 306, second transmission shaft; 307, second balancing block; 308, slide rail; 309, bracket; 310, second eccentric block; 311, connecting plate;

[0047] 401. Servo motor; 402. Driving pulley; 403. First cross-flow fan; 404. Second cross-flow fan; 405. Second guide plate; 406. Third cross-flow fan; 407. Third guide plate; 408. Electric motor; 409. Corn cob fragment outlet; 410. Corn kernel outlet; 411. Driving sprocket. DETAILED DESCRIPTION

[0048] To make the technical problems, technical solutions, and technical effects of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0052] Example 1

[0053] like Figures 1 to 10 As shown, this embodiment provides a core shaft mechanical crushing type non-destructive corn seed thresher, comprising a box body 4, wherein the box body 4 is provided with an ear crushing device 1, a kneading threshing mechanism 2, and a screening and impurity removal mechanism 3 from top to bottom. The ear crushing device 1 includes an ear fixing device 101, a continuous crushing cylinder assembly 102, and an ear crushing assembly 103;

[0054] The corn ear fixing device 101 includes a movable mounting plate, a plurality of flexible fixing blocks 101.2 arranged in parallel at the bottom of the movable mounting plate, and a lifting cylinder 101.1 arranged at the top of the movable mounting plate to drive the movable mounting plate to rise and fall. The bottom of the lifting cylinder 101.1 is fixed to the top of the box body 4. Each flexible fixing block 101.2 is pushed into the row of corn ear crushing cylinders 102.2 by the lifting cylinder 101.1 to compact the corn ears.

[0055] The row of crushing barrels 102 includes a plurality of corn ear crushing barrels 102.2 arranged in parallel on the left side wall of the box body 4. The number of corn ear crushing barrels 102.2 is the same as the number of flexible fixing blocks 101.2, and they correspond one to one. The top of each corn ear crushing barrel 102.2 is provided with a square hole allowing the corresponding flexible fixing block 101.2 to pass through. The bottom of each corn ear crushing barrel 102.2 is provided with a plurality of sieve holes allowing corn ear fragments to pass through. Each corn ear crushing barrel 102.2 is provided with an infrared sensor 102.1 responsible for detecting the placement of corn ears.

[0056] The fruit ear crushing assembly 103 includes a plurality of fruit ear crushing units corresponding to the fruit ear crushing cylinders 102.2. Each fruit ear crushing unit includes a reversible servo electric push rod 103.1 fixed to the right side wall of the box body 4, a plug 103.7 connected to the reversible servo electric push rod 103.1 through a coupling 103.2, a plug provided at the left end of the plug 103.7, and a threaded cone 103.6 sleeved on the plug. It can be inserted into the corresponding fruit cluster crushing cylinder 102.2. Each threaded cone cylinder 103.6 includes a conical shell at the left end and a cylindrical body at the right end. The conical shell and the cylindrical body are welded into one. A plurality of elastic wall-breaking components are provided on the conical shell. Each cylindrical body is supported by a T-shaped bearing seat 103.9. A sprocket 103.8 is provided on each cylindrical body. Each sprocket 103.8 is connected to the motor 408 outside the box body 4 through a chain to provide power for the rotation of the threaded cone cylinder 103.6.

[0057] Specifically, the corn cob crushing cylinder 102.2 is a corn cob crushing container, with a square hole on the top for the corn cob fixing device 101 to act on, and a sieve hole of appropriate size on the bottom for corn cob fragments to fall through.

[0058] In one embodiment, each elastic wall-breaking component includes a mounting base 103.5 arranged inside the threaded cone 103.6, a spike 103.4 arranged on the mounting base 103.5, and a spring 103.3 mounted on the spike 103.4. One end of the spring 103.3 is connected to the inner wall of the threaded cone 103.6, and the other end is fixed on the mounting base 103.5. In the natural state, the spike 103.4 is located inside the threaded cone 103.6. In the extruded state, the spike 103.4 passes through the small hole on the side wall of the threaded cone 103.6 and contacts the corn cob.

[0059] Specifically, mounting base 103.5 serves as the mounting base for spikes 103.4 and spring 103.3. It possesses a certain degree of elasticity and is connected to the inner wall of the cone via a pin. Spikes 103.4 are responsible for further crushing the corn ears. When the plug enters threaded cone 103.6, spikes 103.4 extend from the cone, further crushing the corn ears. Spring 103.3 resets spikes 103.4 after rod 103.7 is withdrawn.

[0060] In one embodiment, the kneading threshing mechanism 2 includes a lower threshing plate 209 fixed to the inside of the box body 4 by bolts, an upper threshing plate 208 arranged above the lower threshing plate 209 and moving according to a set trajectory, and a moving drive mechanism for driving the upper threshing plate 208 to move. Flexible threshing protrusions are regularly arranged above the lower threshing plate 209 and below the upper threshing plate 208, and a first guide plate located below the sieve hole is provided on the left side of the lower threshing plate 209.

[0061] Specifically, the upper threshing plate 208 reciprocates forward, backward, and upward along a set trajectory, with flexible threshing protrusions arranged regularly on its surface. The lower threshing plate 209 is bolted to the interior of the housing 4 and features flexible threshing protrusions arranged regularly on its surface. It cooperates with the upper threshing plate 208 to thresh the corn ear fragments. A first guide plate is provided at the front end to ensure that all corn ear fragments enter. A lower mounting block 211 is provided at the edge of the lower threshing plate 209 to secure the lower threshing plate 209.

[0062] In one embodiment, the mobile drive mechanism includes mobile drive assemblies with the same structure arranged on the front and rear sides of the upper threshing plate 208, each mobile drive assembly includes a first transmission shaft 210, a first bearing inner seat 203 sleeved on both ends of the first transmission shaft 210, and a first bearing outer seat 202 sleeved on the outer side of each first bearing inner seat 203. The first bearing outer seat 202 is connected to the upper threshing plate 208 by bolts and an upper mounting plate 207;

[0063] The ends on the same side of the two first transmission shafts 210 are both sleeved with a first pulley 205, and the other ends on the same side of the two first transmission shafts 210 are both sleeved with a first balancing block 201 that plays a balancing and stabilizing role. The first pulley 205 is connected to the electric motor 408 on the outside of the box body 4 through a V-belt, and each first pulley 205 is provided with a first eccentric block 206 responsible for introducing eccentric motion to make the upper threshing plate 208 move according to the set trajectory.

[0064] Specifically, the first outer bearing seat 202 is connected to the upper threshing plate 208 via bolts and an upper mounting plate 207, enabling the movement of the upper threshing plate 208. The first inner bearing seat 203 performs eccentric motion, transmitting power and causing the upper threshing plate 208 to move along a predetermined trajectory. The first bearing seat 204 (composed of the first inner bearing seat 203 and the first outer bearing seat 202) secures the kneading threshing device to the housing 4.

[0065] In one embodiment, the screening and impurity removal mechanism 3 is arranged at an angle, and the screening and impurity removal mechanism 3 includes an inclined bracket 309, a plurality of fish scale screens 305 installed in parallel on the bracket 309, and a slide rail 308 fixed on the left wall inside the box body 4 is provided at the left end of the bracket 309, and a vibration mechanism for driving the bracket to vibrate up and down is provided at the right end of the bracket 309.

[0066] In one embodiment, the vibration mechanism includes a second transmission shaft 306, second bearing inner seats 303 sleeved at both ends of the second transmission shaft 306, and second bearing outer seats 302 sleeved outside each second bearing inner seat 303. The second bearing outer seat 302 is connected to the right end of the bracket via bolts and a connecting plate 311.

[0067] One end of the second transmission shaft 306 is provided with a second pulley 301, and the other end of the second transmission shaft 306 is provided with a second balancing block 307 which plays a balancing and stabilizing role. The second pulley 301 is connected to the motor 408 outside the box body 4 through a V-belt. The second pulley 301 is provided with a second eccentric block 310 which is responsible for introducing eccentric motion to make the bracket move according to the set trajectory.

[0068] Specifically, the second bearing seat 304 (the second bearing inner seat 303 and the second bearing outer seat 302 form the second bearing seat 304) is responsible for fixing the screening and impurity removal device on the housing 4. Appropriate gaps are left between the fish scale screen pieces 305 for corn kernels to pass through, and the corn cob fragments are continuously moved upward with the movement of the fish scale screen and thrown out for screening.

[0069] In one embodiment, a servo motor 401 is provided on the outside of the box body 4 to provide power for the rotation of the spiral cone, and a driving sprocket 411 is provided on the output shaft of the servo motor 401; an electric motor 408 is provided on the outside of the box body 4 to provide power for the corn rubbing and threshing device and the screening and impurity removal device through belt transmission, and a driving pulley 402 is provided on the output shaft of the electric motor 408.

[0070] In one embodiment, a first cross-flow fan 403 for assisting in the transmission and cleaning of core shaft fragments with grains is provided on the box body 4 located above the corn rubbing and threshing device; a second cross-flow fan 404 for blowing out small and light core shaft fragments is provided on the box body 4 located above the screening and impurity removal mechanism 3; a third cross-flow fan 406 for cooperating with the screening and impurity removal mechanism 3 to screen the core shaft fragments and corn grains is provided on the box body 4 located below the screening and impurity removal mechanism 3.

[0071] In one embodiment, a second guide plate 405 for discharging corn cob fragments is provided inside the box body 4 above the screening and impurity removal mechanism 3. The second guide plate 405 is obliquely arranged on the side wall of the box body 4. A corn cob fragment outlet 409 is provided at the connection between the second guide plate 405 and the box body 4.

[0072] In one embodiment, a third guide plate 407 for collecting corn kernels is provided inside the box body 4 below the screening and impurity removal mechanism 3. The third guide plate 407 is tiltedly arranged on the side wall of the box body 4. A corn kernel outlet 410 is provided at the connection between the third guide plate 407 and the box body 4.

[0073] Workflow:

[0074] When a corn cob is placed into cob crushing drum 102.2 and infrared sensor 102.1 detects the cob, lifting cylinder 101.1 descends, pushing flexible fixing block 101.2 to squeeze and secure the cob. Motor 408 rotates the spiral cone via a chain drive. After the cob is initially cracked, the reciprocating servo electric push rod 103.1 pushes rod 103.7 forward. The spike base 103.5 is elastically deformed under pressure, and spikes 103.4 emerge from the circular holes on the spiral cone's surface, further crushing the cob. Motor 408 then rotates the spiral cone via a chain drive. The rotation and the action of spikes 103.4 completely shatter the cob, breaking it into cob fragments of varying sizes and containing kernels. Then the return servo electric push rod 103.1 drives the plug rod 103.7 to retract, and the spike 103.4 is reset to the inside of the threaded cone 103.6 under the elastic force of the spring 103.3 and the base of the spike 103.4. The lifting cylinder 101.1 drives the flexible fixing block 101.2 to return to its original position.

[0075] The core shaft fragments with kernels fall freely under the action of gravity through the square hole at the bottom of the corn ear crushing cylinder 102.2. The core shaft fragments with kernels with kernels pass through the guide plate at the front end of the lower threshing plate 209 and enter the corn ear kneading threshing device. The kernels are separated from the core shaft fragments by the kneading action of the upper threshing plate 208 and the lower threshing plate 209.

[0076] The separated corn kernels and mandrel fragments are completely ejected from the tail end of the corn cob kneading and threshing device under the action of gravity, the push of the upper threshing plate 208, and the wind force of the first cross-flow fan 403. The corn kernels and mandrel fragments are transferred to the fish-scale screen 305 by the guide plate on the housing 4 and the action of the second cross-flow fan 404. As the fish-scale screen 305 vibrates, the corn kernels fall through the gaps between the fish-scale screens 305 under the action of gravity, and are discharged from the machine through the corn kernel outlet 410 through the third guide plate 407 and collected. Larger mandrel fragments are continuously thrown diagonally upward by the vibration of the fish-scale screen 305. Once the large mandrel fragments are thrown out of the fish-scale screen 305, they are discharged from the machine along the second guide plate 405 under the action of gravity. Smaller cob fragments and moldy corn kernels, like larger cob fragments, are discharged through the ends of the fish-scale screen 305 by the wind from the second and third cross-flow fans 404 and 406 and by the fish-scale screen 305. Under the influence of gravity, they are then discharged outside the machine through the corn cob fragment outlet 409 along the second guide plate 405. The power for the corn cob rubbing and threshing device and the impurity removal and screening device is transmitted by motor 408 via a belt drive.

[0077] This round of work is completed.

Claims

1. A core shaft mechanical crushing type corn seed non-destructive thresher, characterized in that: The invention comprises a box body (4), wherein a fruit ear crushing device (1), a kneading and threshing mechanism (2), and a screening and impurity removal mechanism (3) are sequentially arranged in the box body (4) from top to bottom, and the fruit ear crushing device (1) comprises a fruit ear fixing device (101), a continuous crushing cylinder assembly (102), and a fruit ear crushing assembly (103); The corn ear fixing device (101) comprises a movable mounting plate, a plurality of flexible fixing blocks (101.2) arranged in parallel at the bottom of the movable mounting plate, and a lifting cylinder (101.1) arranged at the top of the movable mounting plate for driving the movable mounting plate to move up and down, the bottom of the lifting cylinder (101.1) being fixed to the top of the box (4), and each of the flexible fixing blocks (101.2) being pushed into a row of corn ear crushing cylinders (102.2) by the lifting cylinder (101.1) to compact the corn ears; The row crushing cylinder assembly (102) comprises a plurality of corn ear crushing cylinders (102.2) arranged in parallel on the left side wall of the box body (4); the number of the corn ear crushing cylinders (102.2) is the same as the number of the flexible fixing blocks (101.2) and corresponds to each other; the top of each corn ear crushing cylinder (102.2) is provided with a square hole allowing the corresponding flexible fixing block (101.2) to pass through; the bottom of each corn ear crushing cylinder (102.2) is provided with a plurality of sieve holes allowing corn ear fragments to pass through; and each corn ear crushing cylinder (102.2) is provided with an infrared sensor (102.1) responsible for detecting the placement of corn ears; The ear crushing assembly (103) includes a plurality of ear crushing units corresponding to the ear crushing cylinders (102.2), each of the ear crushing units including a folding servo electric push rod (103.1) fixed on the right side wall of the box (4), a plug (103.7) connected to the folding servo electric push rod (103.1) through a coupling (103.2), a plug provided at the left end of the plug rod (103.7), and a threaded cone (103.6) sleeved on the plug, each of the threaded cones (103.6) being capable of The threaded cones (103.6) can be inserted into the corresponding fruit cluster crushing cylinders (102.2), each of the threaded cones (103.6) comprises a conical shell at the left end and a cylindrical body at the right end, the conical shell and the cylindrical body are welded into one, a plurality of elastic wall-breaking components are provided on the conical shell, each of the cylindrical bodies is supported by the T-shaped bearing seat (103.9), and a sprocket (103.8) is sleeved on each of the cylindrical bodies, and each of the sprockets (103.8) is connected to the servo motor (401) outside the box (4) through a chain, providing power for the rotation of the threaded cones (103.6).

2. The core shaft mechanical crushing type corn seed non-destructive thresher according to claim 1, characterized in that: Each elastic wall-breaking component comprises a mounting base (103.5) arranged inside the threaded cone (103.6), a spike (103.4) arranged on the mounting base (103.5), and a spring (103.3) sleeved on the spike (103.4); one end of the spring (103.3) is connected to the inner wall of the threaded cone (103.6), and the other end is fixed to the mounting base (103.5); in a natural state, the spike (103.4) is located inside the threaded cone (103.6); in an extruded state, the spike (103.4) passes through a small hole on the side wall of the threaded cone (103.6) and contacts a corn ear.

3. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 1, characterized in that: The kneading threshing mechanism (2) comprises a lower threshing plate (209) fixed to the inside of the box (4) by bolts, an upper threshing plate (208) arranged above the lower threshing plate (209) and moving according to a set trajectory, and a moving drive mechanism for driving the upper threshing plate (208) to move, flexible threshing protrusions are regularly arranged above the lower threshing plate (209) and below the upper threshing plate (208), and a first guide plate located below the sieve hole is provided on the left side of the lower threshing plate (209).

4. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 3, characterized in that: The mobile drive mechanism comprises mobile drive assemblies of the same structure arranged on the front and rear sides of the upper threshing plate (208), each of the mobile drive assemblies comprising a first transmission shaft (210), first bearing inner seats (203) sleeved on both ends of the first transmission shaft (210), and first bearing outer seats (202) sleeved on the outer sides of each first bearing inner seat (203), wherein the first bearing outer seat (202) is connected to the upper threshing plate (208) via bolts and an upper mounting plate (207); The ends of the same side of the two first transmission shafts (210) are both sleeved with a first pulley (205), and the other ends of the same side of the two first transmission shafts (210) are both sleeved with a first balancing block (201) for balancing and stabilizing. The first pulleys (205) are connected to the motor (408) outside the box (4) through a V-belt. Each of the first pulleys (205) is provided with a first eccentric block (206) responsible for introducing eccentric motion so that the upper threshing plate (208) moves according to a set trajectory.

5. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 3, characterized in that: The screening and impurity removal mechanism (3) is arranged at an angle, and comprises a bracket (309) arranged at an angle, and a plurality of fish-scale screens (305) mounted in parallel on the bracket (309); a slide rail (308) fixed to the left wall inside the box (4) is arranged at the left end of the bracket (309); and a vibration mechanism for driving the bracket to vibrate up and down is arranged at the right end of the bracket (309).

6. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 5, characterized in that: The vibration mechanism comprises a second transmission shaft (306), second bearing inner seats (303) sleeved on both ends of the second transmission shaft (306), and second bearing outer seats (302) sleeved on the outside of each second bearing inner seat (303), wherein the second bearing outer seat (302) is connected to the right end of the bracket via bolts and a connecting plate (311); One end of the second transmission shaft (306) is provided with a second pulley (301), and the other end of the second transmission shaft (306) is provided with a second balancing block (307) for balancing and stabilizing. The second pulley (301) is connected to the motor (408) outside the box (4) through a V-belt. The second pulley (301) is provided with a second eccentric block (310) responsible for introducing eccentric motion so that the bracket moves according to a set trajectory.

7. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 5, characterized in that: The box body (4) is provided with a servo motor (401) outside for providing power for the rotation of the spiral cone; the box body (4) is provided with an electric motor (408) outside for providing power for the corn kneading and threshing device and the screening and impurity removal device through belt transmission, and a driving pulley (402) is provided on the output shaft of the electric motor (408).

8. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 7, characterized in that: The box (4) located above the corn kneading and threshing device is provided with a first cross-flow fan (403) for assisting in the transmission and cleaning of the core shaft fragments with grains; the box (4) located above the screening and impurity removal mechanism (3) is provided with a second cross-flow fan (404) for blowing out the core shaft fragments with small volume and light weight; the box (4) located below the screening and impurity removal mechanism (3) is provided with a third cross-flow fan (406) for cooperating with the screening and impurity removal mechanism (3) to screen the core shaft fragments and corn grains.

9. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 8, characterized in that: A second guide plate (405) for discharging corn cob fragments is provided inside the box body (4) above the screening and impurity removal mechanism (3); the second guide plate (405) is obliquely arranged on the side wall of the box body (4); and a corn cob fragment outlet (409) is provided at the connection between the second guide plate (405) and the box body (4).

10. The core shaft mechanical crushing type non-destructive corn seed thresher according to claim 8, characterized in that: A third guide plate (407) for collecting corn kernels is provided inside the box body (4) below the screening and impurity removal mechanism (3); the third guide plate (407) is obliquely arranged on the side wall of the box body (4); and a corn kernel outlet (410) is provided at the connection between the third guide plate (407) and the box body (4).

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