A core axle mechanical breaking type corn seed nondestructive thresher

Abstract

This invention discloses a mandrel-driven mechanical crushing type non-destructive corn seed threshing machine, belonging to the field of agricultural machinery technology. It includes a housing, inside which, from top to bottom, are arranged an ear crushing device, a threshing and kneading mechanism, and a screening and impurity removal mechanism. The ear crushing device includes an ear fixing device, a continuous crushing cylinder assembly, and an ear crushing component. This invention solves the problem of low threshing rates caused by the varying sizes and shapes of corn parent ears through mechanical crushing and threshing, significantly improving its operational capacity. The parallel arrangement and synchronous operation of eight mandrel crushing devices further enhances work efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and more specifically to the field of a spindle-type mechanical crushing corn seed non-destructive threshing machine. Background Technology

[0002] Corn is the grain crop with the largest planting area and the highest total output in my country, accounting for 40% of the total grain output, and is one of the core crops for ensuring food security.

[0003] In maize breeding, it is necessary to thresh the ears of different maize parent varieties for subsequent planting and breeding research. Manual threshing is time-consuming, labor-intensive, and costly, making mechanical threshing essential. Existing maize ear threshers mostly use vertical threshing drums with adjustable threshing chambers, employing low-speed rotation for threshing by kneading. This method is effective for maize ears that are regular in shape and uniform in size. However, different maize parent varieties have ears of varying sizes, shapes, and cob strengths. Existing single-ear threshers cannot effectively address these characteristics, and traditional threshers are ineffective at threshing kernels from the tips of the ears, resulting in low threshing rates and impurities, thus affecting breeding efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problems of traditional corn single-ear threshers, such as poor applicability to corn parent ears, low threshing rate, low working efficiency, and mixing of kernels and cobs in the threshing product. This invention provides a non-destructive corn seed thresher with mechanical crushing of the cob.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] This invention provides a core-shaft mechanical crushing type non-destructive corn seed threshing machine, including a box body, in which a corn ear crushing device, a rubbing and threshing mechanism and a screening and impurity removal mechanism are arranged sequentially from top to bottom. The corn ear crushing device includes a corn ear fixing device, a continuous crushing cylinder assembly and a corn ear crushing component.

[0007] The ear-fixing device includes a movable mounting plate, multiple flexible fixing blocks arranged side by side at the bottom of the movable mounting plate, and a lifting cylinder set at the top of the movable mounting plate to drive the movable mounting plate to rise and fall. The bottom of the lifting cylinder is fixed to the top of the box body, and each flexible fixing block is pushed into the continuous ear crushing cylinder through the lifting cylinder to press the corn ears.

[0008] The continuous crushing cylinder assembly includes multiple ear crushing cylinders arranged side by side on the left side wall of the box. The number of ear crushing cylinders is the same as the number of flexible fixing blocks and they correspond one-to-one. Each ear crushing cylinder has a square hole at the top that allows the corresponding flexible fixing block to pass through. Each ear crushing cylinder has multiple sieve holes at the bottom that allow corn ear fragments to pass through. Each ear crushing cylinder is equipped with an infrared sensor responsible for detecting the insertion of corn ears.

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

[0010] Specifically, the corn cob crushing cylinder is a corn cob crushing container. It has a square hole at the top for the corn cob fixing device, and a screen of appropriate size at the bottom for the corn cob fragments to fall off.

[0011] In one embodiment, each elastic wall-breaking component includes a mounting base disposed inside a threaded cone cylinder, a spike disposed 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 cylinder, and the other end is fixed to the mounting base. In its natural state, the spike is located inside the threaded cone cylinder. In the compression state, the spike passes through a small hole on the side wall of the threaded cone cylinder and contacts the corn cob.

[0012] Specifically, the mounting base is a flexible base for mounting the spikes and springs, connected to the inner wall of the cone cylinder by a pin. The spikes are responsible for further crushing the corn cobs; when the plug enters the threaded cone cylinder, the spikes extend out of the cone cylinder to further crush the corn cobs. The springs are responsible for the reset of the spikes after the plug is withdrawn.

[0013] In one embodiment, the threshing mechanism includes a lower threshing plate fixed to the inside of the box by bolts, an upper threshing plate disposed above the lower threshing plate and moving along 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 holes is disposed on the left side of the lower threshing plate.

[0014] Specifically, the upper threshing plate reciprocates back and forth and up and down according to a set trajectory, with flexible threshing protrusions regularly arranged on its surface; the lower threshing plate is fixed inside the housing by bolts, with flexible threshing protrusions regularly arranged on its surface, working in conjunction with the upper threshing plate to complete the threshing of corn cob fragments. A first guide plate is provided at the front end to ensure that all corn cob fragments enter, and a lower mounting block is provided at the edge of the lower threshing plate to be responsible for the installation and fixation of the lower threshing plate.

[0015] In one embodiment, the moving drive mechanism includes moving drive components with the same structure disposed on the front and rear sides of the upper threshing plate. Each moving drive component includes a first drive shaft, a first bearing inner seat sleeved at both ends of the first drive shaft, and a first bearing outer seat sleeved on the outside of each first bearing inner seat. The first bearing outer seat is connected to the upper threshing plate by bolts and an upper mounting plate.

[0016] Each of the two first drive shafts is fitted with a first pulley on the same side end, and a first balance block is fitted on the other side end of each of the two first drive shafts to provide balance and stability. The first pulleys are connected to the motor on the outside of the box via a V-belt. Each first pulley is equipped with a first eccentric block responsible for introducing eccentric motion so that the upper threshing plate moves along a set trajectory.

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

[0018] In one embodiment, the screening and impurity removal mechanism is inclined and includes an inclined support, multiple fish scale screens installed in parallel on the support, a slide rail plate fixed to the left wall inside the box at the left end of the support, and a vibration mechanism that drives the support to vibrate up and down at the right end of the support.

[0019] In one embodiment, the vibration mechanism includes a second drive shaft, second bearing inner seats sleeved at both ends of the second drive shaft, and second bearing outer seats sleeved on the outside of each second bearing inner seat. The second bearing outer seats are connected to the right end of the bracket by bolts and connecting plates.

[0020] A second pulley is fitted at one end of the second drive shaft, and a second balance block that plays a balancing and stabilizing role is fitted at the other end of the second drive shaft. The second pulley is connected to the motor on the outside of the housing through a V-belt, and a second eccentric block is provided on the second pulley to introduce eccentric motion so that the bracket moves according to a set trajectory.

[0021] Specifically, the second bearing housing (comprising the inner and outer bearing housings) is responsible for fixing the screening and impurity removal device to the housing. Appropriate gaps are left between the fish-scale screen plates to allow corn kernels to pass through, and corn cob fragments are continuously moved upwards and ejected as the fish-scale screen moves.

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

[0023] In one embodiment, a first cross-flow fan is provided on the housing above the corn threshing device to assist in the transmission and cleaning of kernel and cob fragments; a second cross-flow fan is provided on the housing above the screening and impurity removal mechanism to blow out small and lightweight cob fragments; and a third cross-flow fan is provided on the housing below the screening and impurity removal mechanism to cooperate with the screening and impurity removal mechanism in screening cob fragments and corn kernels.

[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 inclinedly arranged 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 inclinedly arranged 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 this invention are as follows:

[0027] 1. This invention uses a mechanical structure to uniformly crush and thresh corn ears, solving the problem of low threshing rates caused by the varying sizes and shapes of parent corn ears, and significantly improving its operational capacity. The parallel arrangement and synchronous operation of eight sets of mandrel crushing devices further enhances work efficiency.

[0028] 2. This invention employs a workflow where a uniform mandrel is crushed, followed by threshing using a flexible device and impurity removal. This solves the problem of impurities in corn kernels caused by mandrel breakage during threshing due to differences in mandrel strength in traditional threshing machines. This innovative design reduces manual intervention, lowers labor costs, and improves threshing efficiency and effectiveness, providing a completely new technical solution for threshing parent corn ears. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a spindle-type mechanical crushing corn seed non-destructive threshing machine according to the present invention;

[0031] Figure 2 yes Figure 1 A sectional view;

[0032] Figure 3 This is a schematic diagram of the ear crushing device;

[0033] Figure 4 This is a schematic diagram of the ear-fixing device;

[0034] Figure 5 This is a schematic diagram of the ear crushing cylinder;

[0035] Figure 6 This is a schematic diagram of the ear crushing component;

[0036] Figure 7 This is a schematic diagram of the ear-shredding and threshing device;

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

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

[0039] Figure 10 This is a schematic diagram of the internal structure of the box;

[0040] Reference numerals: 1. Ear crushing device; 2. Threshing and threshing mechanism; 3. Screening and impurity removal mechanism; 4. Box body;

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

[0042] 101.1 Lifting cylinder; 101.2 Flexible fixing block;

[0043] 102.1 Infrared sensor; 102.2 Ear crushing cylinder;

[0044] 103.1 Folding-back servo electric actuator; 103.2 Coupling; 103.3 Spring; 103.4 Spike; 103.5 Mounting base; 103.6 Threaded tapered cylinder; 103.7 Insert rod; 103.8 Sprocket; 103.9 T-type bearing housing;

[0045] 201. First counterweight; 202. First bearing outer seat; 203. First bearing inner seat; 204. First bearing housing; 205. First pulley; 206. First eccentric block; 207. Upper mounting plate; 208. Upper threshing plate; 209. Lower threshing plate; 210. First drive shaft; 211. Lower mounting block;

[0046] 301. Second pulley; 302. Second bearing outer seat; 303. Second bearing inner seat; 304. Second bearing housing; 305. Fish scale screen; 306. Second drive shaft; 307. Second balance block; 308. Slide rail; 309. Bracket; 310. Second eccentric block; 311. Connecting plate;

[0047] 401. Servo motor; 402. Drive pulley; 403. First crossflow fan; 404. Second crossflow fan; 405. Second guide plate; 406. Third crossflow fan; 407. Third guide plate; 408. Electric motor; 409. Corn cob fragment outlet; 410. Corn kernel outlet; 411. Drive sprocket. Detailed Implementation

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

[0049] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0050] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0052] Example 1

[0053] like Figures 1 to 10 As shown in the figure, this embodiment provides a core shaft mechanical crushing type non-destructive corn seed threshing machine of the present invention, including a box 4. The box 4 is provided with a corn ear crushing device 1, a rubbing and threshing mechanism 2 and a screening and impurity removal mechanism 3 arranged from top to bottom. The corn ear crushing device 1 includes a corn ear fixing device 101, a continuous crushing cylinder assembly 102 and a corn ear crushing assembly 103.

[0054] The ear fixing device 101 includes a movable mounting plate, a plurality of flexible fixing blocks 101.2 arranged side by side 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 4. Each flexible fixing block 101.2 is pushed into the continuous ear crushing cylinder 102.2 by the lifting cylinder 101.1 to press the corn ears.

[0055] The continuous crushing cylinder assembly 102 includes multiple ear crushing cylinders 102.2 arranged side by side on the left side wall of the housing 4. The number of ear crushing cylinders 102.2 is the same as the number of flexible fixing blocks 101.2 and corresponds one-to-one. Each ear crushing cylinder 102.2 has a square hole at the top that allows the corresponding flexible fixing block 101.2 to pass through. Each ear crushing cylinder 102.2 has multiple sieve holes at the bottom that allow corn ear fragments to pass through. Each ear crushing cylinder 102.2 is equipped with an infrared sensor 102.1 responsible for detecting the insertion of corn ears.

[0056] The ear crushing assembly 103 includes multiple ear crushing units corresponding one-to-one with the ear crushing cylinder 102.2. Each ear crushing unit includes a reciprocating servo electric push rod 103.1 fixed to the right side wall of the housing 4, an insert rod 103.7 connected to the reciprocating servo electric push rod 103.1 via a coupling 103.2, a plug located at the left end of the insert rod 103.7, and a threaded cone 103.6 sleeved on the plug. Each threaded cone 103.6... Each threaded cone cylinder 103.6 can be inserted into the corresponding ear 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 together. Multiple elastic wall-breaking components are provided on the conical shell. Each cylindrical body is supported by a T-shaped bearing seat 103.9. Each cylindrical body is fitted with a sprocket 103.8. Each sprocket 103.8 is connected to a motor 408 on the outside of the housing 4 via 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. It has a square hole at the top for the corn cob fixing device 101 to function, and a screen hole of appropriate size at the bottom for the corn cob fragments to fall off.

[0058] In one embodiment, each elastic wall-breaking component includes a mounting base 103.5 disposed inside the threaded cone cylinder 103.6, a spike 103.4 disposed 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 cylinder 103.6, and the other end is fixed to the mounting base 103.5. In its natural state, the spike 103.4 is located inside the threaded cone cylinder 103.6. In the compression state, the spike 103.4 passes through the small hole on the side wall of the threaded cone cylinder 103.6 and contacts the corn cob.

[0059] Specifically, the mounting base 103.5 serves as the mounting base for the spike 103.4 and the spring 103.3, possessing a certain degree of elasticity, and is connected to the inner wall of the cone cylinder via a pin. The spike 103.4 is responsible for further crushing the corn cobs; when the plug enters the threaded cone cylinder 103.6, the spike 103.4 protrudes from the cone cylinder to further crush the corn cobs. The spring 103.3 is responsible for the reset of the spike 103.4 after the insertion rod 103.7 is withdrawn.

[0060] In one embodiment, the threshing mechanism 2 includes a lower threshing plate 209 fixed inside the housing 4 by bolts, an upper threshing plate 208 disposed above the lower threshing plate 209 and moving along 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. A first guide plate located below the sieve holes is disposed on the left side of the lower threshing plate 209.

[0061] Specifically, the upper threshing plate 208 moves back and forth and up and down according to a set trajectory, with flexible threshing protrusions regularly arranged on its surface; the lower threshing plate 209 is fixed inside the housing 4 by bolts, with flexible threshing protrusions regularly arranged on its surface, and works in conjunction with the upper threshing plate 208 to complete the threshing of corn cob fragments. A first guide plate is provided at the front end to ensure that all corn cob fragments enter, and a lower mounting block 211 is provided on the edge of the lower threshing plate 209 to be responsible for the installation and fixation of the lower threshing plate 209.

[0062] In one embodiment, the moving drive mechanism includes moving drive components with the same structure disposed on the front and rear sides of the upper threshing plate 208. Each moving drive component includes a first drive shaft 210, a first bearing inner seat 203 sleeved at both ends of the first drive shaft 210, and a first bearing outer seat 202 sleeved on the outside 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] A first pulley 205 is fitted on the same side end of each of the two first drive shafts 210, and a first balance block 201 is fitted on the other side end of each of the two first drive shafts 210 to play a balancing and stabilizing role. The first pulley 205 is connected to the motor 408 on the outside of the box 4 through a V-belt. Each first pulley 205 is equipped with a first eccentric block 206 responsible for introducing eccentric motion so that the upper threshing plate 208 moves according to a set trajectory.

[0064] Specifically, the outer bearing housing 202 is connected to the upper threshing plate 208 via bolts and an upper mounting plate 207, allowing the upper threshing plate 208 to move. The inner bearing housing 203 performs eccentric motion, transmitting power to cause the upper threshing plate 208 to move along a set trajectory. The first bearing seat 204 (comprising the inner bearing housing 203 and the outer bearing housing 202) is responsible for fixing the threshing and kneading device to the housing 4.

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

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

[0067] A second pulley 301 is fitted at one end of the second drive shaft 306, and a second balance block 307, which plays a balancing and stabilizing role, is fitted at the other end of the second drive shaft 306. The second pulley 301 is connected to the motor 408 on the outside of the housing 4 via a V-belt. A second eccentric block 310 is provided on the second pulley 301 to introduce eccentric motion so that the bracket moves according to a set trajectory.

[0068] Specifically, the second bearing seat 304 (comprising the second bearing inner seat 303 and the second bearing outer seat 302) is responsible for fixing the screening and impurity removal device onto the housing 4. Appropriate gaps are left between the fish-scale screen plates 305 to allow corn kernels to pass through, and corn cob fragments are continuously moved upwards and ejected during the movement of the fish-scale screen.

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

[0070] In one embodiment, a first cross-flow fan 403 is provided on the housing 4 above the corn threshing device to assist in the transmission and cleaning of kernel and cob fragments; a second cross-flow fan 404 is provided on the housing 4 above the screening and impurity removal mechanism 3 to blow out small and lightweight cob fragments; and a third cross-flow fan 406 is provided on the housing 4 below the screening and impurity removal mechanism 3 to cooperate with the screening and impurity removal mechanism 3 in screening cob fragments and corn kernels.

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

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

[0073] Workflow:

[0074] When corn ears are placed into the ear crushing cylinder 102.2, and the infrared sensor 102.1 detects the corn ears, the lifting cylinder 101.1 descends, pushing the flexible fixing block 101.2 to compress and fix the corn ears. The motor 408 drives the spiral cone cylinder to rotate via chain drive. After the corn cob is inserted, the corn cob core initially cracks. At this point, the reversible servo electric push rod 103.1 pushes the insertion rod 103.7 forward, and the spike base 103.5 undergoes elastic deformation under pressure. The spikes 103.4 then protrude from the round holes on the surface of the spiral cone cylinder to further crush the corn cob core. Subsequently, the motor 408 drives the spiral cone cylinder to rotate via chain drive. Under the action of rotation and the spikes 103.4, the corn cob core is completely crushed into kernel-containing core fragments of varying sizes. Subsequently, the retractable servo electric actuator 103.1 drives the insertion rod 103.7 to retract, and the spike 103.4 returns to its original position inside the threaded cone cylinder 103.6 under the elastic force of the spring 103.3 and the spike 103.4 base. The lifting cylinder 101.1 drives the flexible fixing block 101.2 to return to its original position.

[0075] The kernel and cob fragments fall freely under gravity through the square hole at the bottom of the ear crushing cylinder 102.2. The kernel and cob fragments then enter the corn ear rubbing and threshing device through the guide plate at the front end of the lower threshing plate 209, where the kernels and cob fragments are separated by the rubbing action of the upper threshing plate 208 and the lower threshing plate 209.

[0076] After separation, the corn kernels and cob fragments are completely threshed from the tail end of the corn cob threshing device under the action of gravity, the pushing force of the upper threshing plate 208, and the air force of the first cross-flow fan 403. Under the action of the guide plate on the housing 4 and the second cross-flow fan 404, the corn kernels and cob fragments are transferred to the fish-scale screen 305. As the fish-scale screen 305 vibrates, the corn kernels fall under the action of gravity through the gaps in the arrangement of the fish-scale screen 305, and are discharged from the machine through the corn kernel outlet 410 via the third guide plate 407 and collected. Larger cob fragments are continuously thrown obliquely upwards by the vibration of the fish-scale screen 305. After being thrown out of the fish-scale screen 305, the large cob fragments are discharged from the machine along the second guide plate 405 under the action of gravity. Smaller cob fragments and moldy corn kernels, under the influence of the airflow from the second cross-flow fan 404 and the third cross-flow fan 406, and the action of the fish-scale screen 305, pass through the end of the fish-scale screen 305 and, under gravity, are discharged to the outside of the machine via the corn cob fragment outlet 409. The power for the corn ear rubbing and threshing device and the impurity removal and screening device is transmitted by the electric motor 408 via belt drive.

[0077] This concludes one round of work.

Claims

1. A core-shaft mechanical crushing type non-destructive corn seed thresher, characterized in that, The device includes a box (4), and inside the box (4) are arranged from top to bottom a fruit ear crushing device (1), a rubbing and threshing mechanism (2) and a screening and impurity removal mechanism (3). The fruit ear crushing device (1) includes a fruit ear fixing device (101), a continuous crushing cylinder assembly (102) and a fruit ear crushing assembly (103). The ear fixing device (101) includes a movable mounting plate, a plurality of flexible fixing blocks (101.2) arranged side by side 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 (4). Each of the flexible fixing blocks (101.2) is pushed into the continuous ear crushing cylinder (102.2) by the lifting cylinder (101.1) to press the corn ears. The continuous crushing cylinder assembly (102) includes multiple ear crushing cylinders (102.2) arranged side by side on the left side wall of the box body (4). The number of ear crushing cylinders (102.2) is the same as the number of flexible fixing blocks (101.2) and they correspond one-to-one. Each ear crushing cylinder (102.2) has a square hole at the top that allows the corresponding flexible fixing block (101.2) to pass through. Each ear crushing cylinder (102.2) has multiple sieve holes at the bottom that allow corn ear fragments to pass through. Each ear crushing cylinder (102.2) is equipped with an infrared sensor (102.1) responsible for detecting the insertion of corn ears. The ear crushing assembly (103) includes multiple ear crushing units corresponding one-to-one with the ear crushing cylinder (102.2). Each ear crushing unit includes a reciprocating servo electric push rod (103.1) fixed on the right side wall of the housing (4), a plug rod (103.7) connected to the reciprocating servo electric push rod (103.1) via a coupling (103.2), a plug located at the left end of the plug rod (103.7), and a threaded cone cylinder (103.6) sleeved on the plug. Each threaded cone cylinder (103.6) Each threaded cone cylinder (103.6) can be inserted into the corresponding ear crushing cylinder (102.2). Each threaded cone cylinder (103.6) includes a cone-shaped shell at the left end and a cylindrical body at the right end. The cone-shaped shell and the cylindrical body are welded together. Multiple elastic wall-breaking components are provided on the cone-shaped shell. Each cylindrical body is supported by a T-shaped bearing seat (103.9). Each cylindrical body is fitted with a sprocket (103.8). Each sprocket (103.8) is connected to the servo motor (401) on the outside of the box (4) through a chain to provide power for the rotation of the threaded cone cylinder (103.6). Each of the aforementioned elastic wall-breaking components includes a mounting base (103.5) disposed inside the threaded cone (103.6), a spike (103.4) disposed 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 its natural state, the spike (103.4) is located inside the threaded cone (103.6). In the compression 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.

2. The mandrel-driven mechanical crushing type non-destructive corn seed thresher according to claim 1, characterized in that, The threshing mechanism (2) includes a lower threshing plate (209) fixed inside the housing (4) by bolts, an upper threshing plate (208) disposed above the lower threshing plate (209) and moving along 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). A first guide plate located below the sieve hole is disposed on the left side of the lower threshing plate (209).

3. The spindle-type mechanical crushing corn seed thresher according to claim 2, characterized in that, The moving drive mechanism includes moving drive components with the same structure disposed on the front and rear sides of the upper threshing plate (208). Each moving drive component includes a first drive shaft (210), a first bearing inner seat (203) sleeved at both ends of the first drive shaft (210), and a first bearing outer seat (202) sleeved on the outside 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). A first pulley (205) is fitted on the same side end of each of the two first drive shafts (210), and a first balance block (201) is fitted on the other side end of each of the two first drive shafts (210) to provide balance and stability. The first pulley (205) is connected to the motor (408) outside the box (4) via a V-belt. Each first pulley (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.

4. The spindle-type mechanical crushing corn seed thresher according to claim 2, characterized in that, The screening and impurity removal mechanism (3) is inclined. The screening and impurity removal mechanism (3) includes an inclined support (309) and multiple fish scale screens (305) installed in parallel on the support (309). The left end of the support (309) is provided with a slide rail (308) fixed on the left wall inside the box (4). The right end of the support (309) is provided with a vibration mechanism that drives the support to vibrate up and down.

5. A spindle-type mechanical crushing corn seed thresher according to claim 4, characterized in that, The vibration mechanism includes a second drive shaft (306), second bearing inner seats (303) sleeved at both ends of the second drive shaft (306), and second bearing outer seats (302) sleeved on the outside of each second bearing inner seat (303). The second bearing outer seats (302) are connected to the right end of the bracket by bolts and connecting plates (311). A second pulley (301) is fitted at one end of the second drive shaft (306), and a second balance block (307) is fitted at the other end of the second drive shaft (306) to provide balance and stability. The second pulley (301) is connected to the motor (408) outside the housing (4) via a V-belt. A second eccentric block (310) is provided on the second pulley (301) to introduce eccentric motion so that the bracket moves along a set trajectory.

6. A spindle-type mechanical crushing corn seed thresher according to claim 4, characterized in that, The box (4) is equipped with a servo motor (401) that provides power for the rotation of the threaded cone (103.6); the box (4) is equipped with an electric motor (408) that provides power for the kneading and threshing mechanism (2) and the screening and impurity removal mechanism (3) via belt drive, and the output shaft of the electric motor (408) is equipped with a drive pulley (402).

7. A spindle-type mechanical crushing corn seed thresher according to claim 6, characterized in that, A first crossflow fan (403) is provided on the box (4) above the threshing mechanism (2) to assist in the transmission of kernel core fragments; a second crossflow fan (404) is provided on the box (4) above the screening and impurity removal mechanism (3) to blow out small and lightweight core fragments; a third crossflow fan (406) is provided on the box (4) below the screening and impurity removal mechanism (3) to cooperate with the screening and impurity removal mechanism (3) to screen core fragments and corn kernels.

8. A spindle-type mechanical crushing corn seed thresher according to claim 7, characterized in that, The box (4) above the screening and impurity removal mechanism (3) is provided with a second guide plate (405) for discharging corn cob fragments. The second guide plate (405) is inclined on the side wall of the box (4), and a corn cob fragment outlet (409) is provided at the connection between the second guide plate (405) and the box (4).

9. A spindle-type mechanical crushing corn seed thresher according to claim 7, characterized in that, The box (4) below the screening and impurity removal mechanism (3) is provided with a third guide plate (407) for collecting corn kernels. The third guide plate (407) is inclined on the side wall of the box (4). A corn kernel outlet (410) is provided at the connection between the third guide plate (407) and the box (4).

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