Corn threshing device and peeling and threshing test bed thereof

Abstract

The invention discloses a corn threshing device and a peeling and threshing test bed thereof. A push roller is installed on a threshing device rack; the two ends of the fixed roller are rotationally mounted on the threshing device rack; the floating roller is located at the position, away from the corn ear feeding side, of the fixed roller, one end of the floating roller is connected with a universal joint, the universal joint is rotationally installed on the threshing device rack, and the other end of the floating roller is close to the corn ear feeding position. One end of the swing arm is rotationally connected to the end, without the universal joint, of the floating roller, the other end of the swing arm is rotationally connected to a threshing device rack, a tension assembly for applying tension to the swing arm is arranged on the side, close to the corn ear entering side, of the swing arm in the horizontal direction, and one end of the tension assembly is movably connected to the swing arm. And the other end of the connecting rod is movably connected to the threshing device rack in the direction perpendicular to the conveying direction of the corn ears, so that the problem that grains are broken due to extrusion load change in the extrusion threshing process in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, in particular to a corn threshing device and a husking and threshing test bench thereof. Background Art

[0002] Corn threshing is a key link in the mechanized harvesting of corn, and the harvesting quality has an important impact on the yield and quality of corn. The existing squeezing and rubbing type corn thresher (application number 201811364048.5, application number 201811535173.8) has a good threshing effect. However, there are shortcomings in that manual peeling and manual feeding are required in advance, and the degree of automation is not high enough. The radial load generated during squeezing and rubbing threshing is difficult to adjust, which easily causes the corn kernels to break. In addition, the circumferential load generated by the squeezing and rubbing corn thresher in the prior art during squeezing and rubbing threshing is also difficult to adjust. Summary of the invention

[0003] The purpose of the present invention is to provide a corn threshing device and a peeling and threshing test bench thereof to solve the problems existing in the above-mentioned prior art and avoid the problem of grain breakage caused by changes in the extrusion load during the squeezing and rubbing threshing process in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a corn threshing device, comprising a threshing device frame and a floating roller, a push roller and a fixed roller for squeezing and kneading corn ears; and the floating roller, the push roller and the fixed roller are not parallel to each other and are synchronously transmitted and connected;

[0005] The push roller extends horizontally and is rotatably mounted on the frame of the threshing device;

[0006] The fixed roller extends vertically and obliquely and is parallel to the conveying direction of the corn ears, and both ends of the fixed roller are rotatably mounted on the frame of the threshing device;

[0007] The floating roller is located at a position of the fixed roller away from the feeding side of the corn cob, and one end of the floating roller is connected to a universal joint, the universal joint is close to the position where the corn cob is discharged, and is rotatably connected to the threshing device frame, and the other end of the floating roller is close to the position where the corn cob enters;

[0008] The floating roller is equipped with a swing arm arranged near the entry position of the corn cobs, one end of the swing arm is rotatably connected to the end of the floating roller where the universal joint is not arranged, and the other end is rotatably connected to the threshing device frame. The swing arm is provided with a tension component for applying tension to the swing arm on the side close to the entry of the corn cobs in the horizontal direction, one end of the tension component is movably connected to the swing arm, and the other end is movably connected to the threshing device frame along a direction perpendicular to the transmission of the corn cobs.

[0009] Preferably, the tension assembly includes a tension spring and two position adjusting sleeves respectively connected to both ends of the tension spring. One of the position adjusting sleeves is movably installed on the swing arm, and the other position adjusting sleeve is movably installed on the threshing device frame.

[0010] Preferably, a cross tie rod extending in a direction perpendicular to the conveyance of the corn ear is provided on the threshing device frame, and the position adjusting sleeve not connected to the swing arm is threadedly connected to the cross tie rod.

[0011] Preferably, the swing arm includes a floating screw rod and two fish-eye joints respectively connected to both ends of the floating screw rod. One of the fish-eye joints is rotatably connected to the floating roller, and the other fish-eye joint is rotatably connected to the threshing device frame, and the position adjusting sleeve matching with the swing arm is threadedly connected to the floating screw rod.

[0012] Preferably, the pushing roller includes an outer ring portion and a pushing roller shaft for driving its rotation. The outer ring portion is coaxially provided with a through hole for the pushing roller to extend into, and two torsion springs are sleeved on the pushing roller shaft. Both of the torsion springs are provided with a first leg at the middle position between the two torsion springs. The first leg is connected to the pushing roller shaft, and both of the torsion springs are provided with a second leg on the side opposite to the first leg. The second leg is connected to the outer ring portion.

[0013] Preferably, two bearing seats rotatably sleeved on the pushing roller shaft are spaced in the through hole, and spring assemblies are circumferentially and equally spaced in array on the outer peripheral side of each bearing seat. Each spring assembly is connected to the outer ring portion.

[0014] Preferably, the fixed roller includes an extrusion section and a discharge section connected coaxially. The extrusion section is arranged near the entry of the corn ear, and its outer peripheral wall is provided with patterns for extruding and kneading the corn ear. The discharge section is arranged near the discharge of the corn ear, and its outer peripheral wall is surrounded by a screw blade. The screw blade spirally extends along the axis direction of the discharge section.

[0015] Preferably, it further includes a belt transmission mechanism located on the side of the threshing device frame corresponding to the entry side of the corn ear. The belt transmission mechanism includes a reversing pulley, a tensioning pulley, a driving pulley and a first fixed roller pulley. The driving pulley and the first fixed roller pulley are respectively coaxially installed on the pushing roller shaft and the fixed roller. The reversing pulley and the tensioning pulley are both located between the first fixed roller pulley and the driving pulley and are both installed on the threshing device frame. The driving pulley, the reversing pulley, the first fixed roller pulley and the tensioning pulley are synchronously wound with a first transmission belt;

[0016] The belt transmission mechanism further includes a second fixed roller pulley and a floating roller pulley located on the side corresponding to the discharge side of the corn ear of the threshing device frame. The second fixed roller pulley is coaxially installed on the fixed roller, and the floating roller pulley is coaxially installed at the universal joint. A second conveyor belt is synchronously wound between the second fixed roller pulley and the floating roller pulley.

[0017] A threshing and peeling test bench is also provided, including a corn threshing device and a corn conveying device arranged on the feeding side of the threshing device frame. The corn conveying device includes a corn conveying frame, and an independently arranged left conveyor belt, a middle conveyor belt, and a right conveyor belt are provided on the corn conveying frame. The left conveyor belt, the middle conveyor belt, and the right conveyor belt are arranged side by side and close to each other in a direction perpendicular to the conveying direction of the corn ear, and are respectively equipped with a driving mechanism for driving their conveyance.

[0018] Preferably, a corn peeling device is provided on the feeding side of the corn conveying device. The corn peeling device includes a peeling device frame, and two sets of clamping roller groups for clamping corn husks are provided on the peeling device frame. The two clamping roller groups are arranged side by side in a direction perpendicular to the conveying direction of the corn ear;

[0019] Each clamping roller group includes a first clamping roller and a second clamping roller that rotate synchronously and reversely and both extend along the conveying direction of the corn ear. A clamping gap for clamping the corn husk is formed between the first clamping roller and the second clamping roller. Both ends of the first clamping roller are movably installed on the peeling device frame in the radial direction of the second clamping roller. The two second clamping rollers are arranged side by side and close to each other, and are supported under the corn ear. Moreover, spiral patterns for conveying the corn ear are provided on the second clamping roller.

[0020] The present invention has achieved the following technical effects compared with the prior art:

[0021] The corn ear is squeezed and rubbed by the floating roller, the pushing roller, and the fixed roller, so that the corn kernels fall off. A tension assembly for applying a pulling force to the swing arm is provided on the side of the swing arm close to the side where the corn ear enters in the horizontal direction. One end of the tension assembly is movably connected to the swing arm, and the other end is movably connected to the threshing device frame in a direction perpendicular to the conveying direction of the corn ear. The movable settings at both ends of the tension assembly are used to adjust the pulling force of the tension assembly, and thus change the difficulty of adjusting the position of the floating roller, which can buffer the radial load during the threshing process, better adapt to the change of the extrusion load, and reduce the breakage rate of the kernels. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a side view of the entire peeling and threshing test bench of the present invention;

[0024] Figure 2 It is an axonometric view of the entire peeling and threshing test bench of the present invention;

[0025] Figure 3 It is a top view of the corn peeling device of the present invention;

[0026] Figure 4 It is a right view of the corn peeling device of the present invention;

[0027] Figure 5 It is an axonometric view of the corn threshing device of the present invention;

[0028] Figure 6 It is a front view of the corn threshing device of the present invention;

[0029] Figure 7 It is a right view of the corn threshing device of the present invention;

[0030] Figure 8 It is a sectional view of the pushing roller of the present invention;

[0031] Figure 9 It is a left view of the pushing roller of the present invention;

[0032] Among them, 1. Corn peeling device; 2. Corn conveying device; 3. Corn threshing device;

[0033] 1-1. Entrance of the peeling device; 1-2. Cover plate of the peeling machine; 1-3. Stripping plate; 1-4. First clamping roller; 1-5. Second clamping roller; 1-6. First gear; 1-7. Adjusting plate; 1-8. Second gear; 1-9. Bearing seat of the clamping roller; 1-10. Second mounting plate;

[0034] 2-1. Left conveyor belt; 2-2. Intermediate conveyor belt; 2-3. Right conveyor belt;

[0035] 3-1. Floating roller; 3-2. Pushing roller; 3-3. Fixed roller; 3-4. Fixed roller pulley; 3-5. Reversing pulley; 3-6. Driving pulley; 3-7. Tensioning pulley; 3-8. Ear feeding inlet; 3-9. Core discharge outlet; 3-10. Kernel discharge outlet;

[0036] 3-1-1, Fish-eye joint; 3-1-2, Floating screw; 3-1-3, Position adjusting sleeve; 3-1-4, Tension spring; 3-1-5, Cross tie rod; 3-1-6, Universal joint; 3-1-7, Fixed stud; 3-1-8, First mounting plate; 3-2-1, Pushing roller shaft; 3-2-2, Bearing cover; 3-2-3, Bearing; 3-2-4, Bearing block; 3-2-5, Bush; 3-2-6, Torsion spring mounting sleeve; 3-2-7, Torsion spring; 3-2-8, Spring; 3-2-9, Spring seat; 3-2-10, Bushing; 3-3-1, Discharge section. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The object of the present invention is to provide a corn threshing device and a peeling and threshing test bench thereof to solve the problems existing in the above-mentioned prior art and avoid the problem of kernel breakage caused by the change of extrusion load during the squeezing and rubbing threshing process in the prior art.

[0039] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0040] As Figures 1 to 9As shown in the figure, this embodiment provides a corn threshing device, which includes a threshing device frame, a floating roller 3-1, a pushing roller 3-2 and a fixed roller 3-3 for squeezing and kneading corn ears; the floating roller 3-1, the pushing roller 3-2 and the fixed roller 3-3 are not parallel to each other and are synchronously driven and connected; the pushing roller 3-2 extends horizontally and is rotatably installed on the threshing device frame; the fixed roller 3-3 extends obliquely in the vertical direction and is parallel to the conveying direction of the corn ears, and both ends of the fixed roller 3-3 are rotatably installed on the threshing device frame; the floating roller 3-1 is located at a position away from the feeding side of the corn ears, and it has a certain angle with the fixed roller 3-3. One end of the floating roller 3-1 is connected with a universal joint 3-1-6, and the universal joint 3-1-6 is close to the position where the corn ears are discharged and is rotatably connected to the threshing device frame. The other end of the floating roller 3-1 is close to the position where the corn ears enter; the floating roller 3-1 is equipped with a swing arm arranged near the position where the corn ears enter. One end of the swing arm is rotatably connected to the end of the floating roller 3-1 where the universal joint 3-1-6 is not provided, and the other end is rotatably connected to the threshing device frame, so as to realize that while the floating roller 3-1 rotates, a certain range of angular position adjustment in space can be realized. Specifically, when the position of the floating roller 3-1 changes, the swing arm swings, and then the position adjustment of the floating roller 3-1 is realized, so that the floating roller 3-1 can adjust its position according to the different diameters of the corn ears. Thus, the corn ears are squeezed and kneaded by the floating roller 3-1, the pushing roller 3-2 and the fixed roller 3-3, so that the corn kernels fall off. A tension component for applying a pulling force to the swing arm is arranged on the side of the swing arm close to the entering side of the corn ears along the horizontal direction. One end of the tension component is movably connected to the swing arm, and the other end is movably connected to the threshing device frame along the direction perpendicular to the conveying of the corn ears. The movable settings at both ends of the tension component are used to realize the adjustment of the pulling force of the tension component, and then change the difficulty of realizing the position adjustment of the floating roller 3-1, so as to realize the buffering of the radial load during the threshing process, better adapt to the change of the extrusion load, and reduce the breakage rate of the kernels.

[0041] Among them, preferably, the floating roller 3-1, the pushing roller 3-2 and the fixed roller 3-3 are all rollers made of rubber, and the surface is processed with patterns to strengthen the grasping of the ears.

[0042] At the position of the threshing device frame corresponding to the corn ear feeding side, there is an ear feeding inlet 3-8. The tops of the fixed roller 3-3 and the floating roller 3-1 are both located below the ear feeding inlet 3-8. After the corn ear passes through the ear feeding inlet 3-8, the fixed roller 3-3 and the floating roller 3-1 move downward until the floating roller 3-1, the pushing roller 3-2, and the fixed roller 3-3 surround the outer peripheral side of the corn ear and squeeze and rub the corn ear to achieve threshing of the corn ear. At the position of the threshing device frame corresponding to the corn ear discharging side, there is a cob discharge outlet 3-9. Specifically, the cob discharge outlet 3-9 is located on the side of the bottom ends of the fixed roller 3-3 and the floating roller 3-1. After the threshing of the corn ear is completed, the corn ear is directly discharged from the bottom ends of the fixed roller 3-3 and the floating roller 3-1 to the cob discharge outlet 3-9. The threshing device frame is also provided with a grain discharge outlet 3-10. Specifically, the grain discharge outlet 3-10 is located below the bottom ends of the fixed roller 3-3 and the floating roller 3-1. Under the squeezing and rubbing of the floating roller 3-1, the pushing roller 3-2, and the fixed roller 3-3, the grains are separated from the corn ear and discharged from the grain discharge outlet 3-10 downward.

[0043] Among them, the tension component includes a tension spring 3-1-4 and two position adjusting sleeves 3-1-3 respectively connected to both ends of the tension spring 3-1-4. One position adjusting sleeve 3-1-3 is movably installed on the swing arm, and the other position adjusting sleeve 3-1-3 is movably installed on the threshing device frame. By means of the position adjusting sleeve 3-1-3, the two ends of the tension spring 3-1-4 are connected. Then, through the connection of the position adjusting sleeve 3-1-3 with the swing arm and the threshing device frame, the positions of the two position adjusting sleeves 3-1-3 on the swing arm and the threshing device frame can be respectively changed to realize the adjustment of the tension of the tension spring 3-1-4, and further change the difficulty of realizing the position adjustment of the floating roller 3-1.

[0044] To facilitate the adjustment of the position of the position adjustment sleeve 3-1-3, a cross tie rod 3-1-5 extending in a direction perpendicular to the conveyance of the corn cobs is provided on the threshing device frame. The position adjustment sleeve 3-1-3 not connected to the swing arm is threadedly connected to the cross tie rod 3-1-5. And the swing arm includes a floating screw rod 3-1-2 and two eye bolts 3-1-1 respectively connected to both ends of the floating screw rod 3-1-2. One eye bolt 3-1-1 is rotatably connected to the floating roller 3-1, and the other eye bolt 3-1-1 is rotatably connected to the threshing device frame, and the position adjustment sleeve 3-1-3 matching the swing arm is threadedly connected to the floating screw rod 3-1-2. The position adjustment ability of the floating roller 3-1 can be adjusted by the floating screw rod 3-1-2, the position adjustment sleeve 3-1-3, the tension spring 3-1-4, and the cross tie rod 3-1-5. Among them, position adjustment sleeves 3-1-3 are respectively installed on the floating screw rod 3-1-2 and the cross tie rod 3-1-5, and the position adjustment sleeves 3-1-3 are connected by the tension spring 3-1-4. The positions of the position adjustment sleeves 3-1-3 on the floating screw rod 3-1-2 and the cross tie rod 3-1-5 can be respectively changed to realize the adjustment of the tension of the tension spring 3-1-4, and further change the difficulty of realizing the position adjustment of the floating roller 3-1.

[0045] Moreover, preferably, a first mounting plate 3-1-8 is provided on the threshing device frame, and a fixing stud 3-1-7 is provided on the first mounting plate 3-1-8. The eye bolt 3-1-1 not connected to the floating roller 3-1 is rotatably mounted on the fixing stud 3-1-7.

[0046] As a preferred embodiment of the present invention, the pushing roller 3-2 includes an outer ring portion and a pushing roller shaft 3-2-1 for driving its rotation. The outer ring portion is coaxially provided with a through hole for the pushing roller 3-2 to extend into, and two torsion springs 3-2-7 are sleeved on the pushing roller shaft 3-2-1. Both torsion springs 3-2-7 are provided with first legs at the intermediate positions between the two torsion springs 3-2-7, and the first legs are connected to the pushing roller shaft 3-2-1. And both torsion springs 3-2-7 are provided with second legs on the side opposite to the first legs, and the second legs are connected to the outer ring portion. By connecting the outer ring portion and the pushing roller shaft 3-2-1 through the two torsion springs 3-2-7, buffering can be realized when the circumferential extrusion force changes during threshing. And preferably, the outer ring portion is made of rubber material, with patterns printed on its outer peripheral wall and a bushing 3-2-10 provided on its inner peripheral wall to support the outer ring portion. Both second legs are installed on the bushing 3-2-10. And preferably, the outer ring portion has a conical structure, and its radial cross-section gradually decreases along the horizontal direction from the feeding end to the discharging end.

[0047] Further, two bearing seats 3-2-4 rotatably sleeved on the pushing roller shaft 3-2-1 are spaced in the through hole. Specifically, a bearing 3-2-3 rotatably sleeved on the pushing roller shaft 3-2-1 is installed on the bearing seat 3-2-4, and a bearing cover 3-2-2 for preventing the bearing 3-2-3 from coming off is installed on the bearing seat 3-2-4. Spring assemblies are circumferentially and equally spaced in the circumferential direction on the outer peripheral side of each bearing seat 3-2-4, and each spring assembly is connected to the outer ring part, so as to buffer the radial extrusion force during the threshing process. Preferably, each spring assembly is connected to the bushing 3-2-10. Specifically, the spring assembly includes a spring seat 3-2-9 and a spring 3-2-8. The spring seat 3-2-9 is installed on the bushing 3-2-10, and a convex structure is installed on the bearing seat. The spring 3-2-8 is connected between the convex structure and the spring seat 3-2-9.

[0048] Preferably, two bushings 3-2-5 installed on the pushing roller shaft 3-2-1 are provided between the two bearing seats. The two bushings 3-2-5 are spaced apart, and a torsion spring installation sleeve 3-2-6 surrounding the outer peripheral side of the pushing roller shaft 3-2-1 is connected between the two bushings 3-2-5. Two torsion springs 3-2-7 are both wound around the torsion spring installation sleeve 3-2-6, and the first legs are both connected to the torsion spring installation sleeve 3-2-6.

[0049] As a preferred embodiment of the present invention, the fixed roller 3-3 includes an extrusion section and a discharge section 3-3-1 connected coaxially. The extrusion section is arranged near the entry of the corn ear, and patterns for extruding and kneading the corn ear are provided on its outer peripheral wall. The discharge section 3-3-1 is arranged near the discharge of the corn ear, and auger blades are wound around its outer peripheral wall. The auger blades extend spirally along the axis direction of the discharge section 3-3-1. The extrusion section is made of rubber material, and patterns for facilitating the threshing of the corn ear are printed on its surface. The auger blades on the discharge section 3-3-1 facilitate the rapid discharge of the corn ear.

[0050] Further, it further includes a belt transmission mechanism located on the side corresponding to the inlet of corn cobs of the threshing device frame. The belt transmission mechanism includes a reversing pulley 3-5, a tensioning pulley 3-7, a driving pulley 3-6, and a first fixed roller pulley 3-4. The driving pulley 3-6 and the first fixed roller pulley 3-4 are respectively coaxially installed on the pushing roller shaft 3-2-1 and the fixed roller 3-3. The reversing pulley 3-5 and the tensioning pulley 3-7 are both located between the first fixed roller pulley 3-4 and the driving pulley 3-6 and are both installed on the threshing device frame. A first conveyor belt is synchronously wound around the driving pulley 3-6, the reversing pulley 3-5, the first fixed roller pulley 3-4, and the tensioning pulley 3-7. Power is input from the driving pulley 3-6 to drive the pushing roller 3-2 to rotate. After passing through the reversing pulley 3-5, it drives the first fixed roller pulley 3-4 to rotate, drives the fixed roller 3-3 to rotate, and the tension of the first conveyor belt is completed by adjusting the position of the tensioning pulley 3-7. The belt transmission mechanism further includes a second fixed roller pulley 3-4 and a floating roller 3-1 pulley located on the side corresponding to the outlet of corn cobs of the threshing device frame. The second fixed roller pulley 3-4 is coaxially installed on the fixed roller 3-3, and the floating roller 3-1 pulley is coaxially installed at the universal joint 3-1-6. A second conveyor belt is synchronously wound between the second fixed roller pulley 3-4 and the floating roller 3-1 pulley to realize the driving of the floating roller 3-1 to rotate by the fixed roller 3-3.

[0051] Further, a peeling and threshing test bench is also provided, which includes a corn threshing device 3 and a corn conveying device 2 arranged on the feeding side of the threshing device frame. The corn conveying device 2 includes a corn conveying frame. An independently arranged left conveyor belt 2-1, a middle conveyor belt 2-2, and a right conveyor belt 2-3 are provided on the corn conveying frame. The left conveyor belt 2-1, the middle conveyor belt 2-2, and the right conveyor belt 2-3 are arranged side by side and closely arranged in a direction perpendicular to the conveying direction of the corn cobs, and are respectively equipped with a driving mechanism for driving their conveyance. The driving mechanism adopts a motor and conveyor belt pulleys, etc., to realize the adjustment of different rotation speeds of the left conveyor belt 2-1, the middle conveyor belt 2-2, and the right conveyor belt 2-3, so that there is a speed difference between the conveyor belts, and the attitude adjustment and forward conveyance of the corn cobs falling on the conveyor belts are realized.

[0052] Among them, a corn husking device 1 is provided on the feeding side of the corn conveying device 2. The corn husking device 1 includes a husking device frame. On the husking device frame, there are two sets of clamping roller groups both for clamping corn husks. The two clamping roller groups are arranged side by side in a direction perpendicular to the conveyance direction of the corn ear. The clamping roller group includes a first clamping roller 1-4 and a second clamping roller 1-5 that rotate synchronously in opposite directions and both extend along the conveyance direction of the corn ear. Preferably, the first clamping roller 1-4 is made of cast iron material and has patterns engraved on its surface. The second clamping roller 1-5 is made of rubber material. There is a clamping gap for clamping the corn husk between the first clamping roller 1-4 and the second clamping roller 1-5. Both ends of the first clamping roller 1-4 are movably installed on the husking device frame in the radial direction of the second clamping roller 1-5. The two second clamping rollers 1-5 are arranged side by side and closely, and are supported under the corn ear. And the second clamping roller 1-5 is provided with spiral patterns for conveying the corn ear. On the husking device frame, there are a husking device inlet 1-1 and a husking device outlet. The corn ear enters through the husking device inlet 1-1 and falls onto the two second clamping rollers 1-5. Under the action of the second clamping roller 1-5, it is conveyed forward while the husk is peeled off by the first clamping roller 1-4 and the second clamping roller 1-5 until it is discharged through the husking device outlet and falls onto the corn conveying device 2.

[0053] Preferably, the second clamping roller 1-5 is equipped with two clamping roller bearing seats 1-9. The clamping roller bearing seats 1-9 are installed on the husking device frame. Both ends of the second clamping roller 1-5 are rotatably installed on the corresponding clamping roller bearing seats 1-9. Both ends of the first clamping roller 1-4 are rotatably installed with adjusting plates 1-7. The two adjusting plates 1-7 are both installed on the frame through a second mounting plate 1-10. The adjusting plates 1-7 are movably installed on the second mounting plate 1-10. Specifically, a strip-shaped mounting groove can be opened on the second mounting plate 1-10. A pre-tightening bolt is inserted into the adjusting plate 1-7, and the pre-tightening bolt moves along the strip-shaped mounting groove and is locked at the strip-shaped mounting groove through a pre-tightening nut to realize the movement of the adjusting plate 1-7 on the second mounting plate 1-10, but it is not limited to this movement method to realize the gap adjustment between the first clamping roller 1-4 and the second clamping roller 1-5.

[0054] Furthermore, to realize the clamping of the corn husk by the first clamping roller 1-4 and the second clamping roller 1-5, the first clamping roller 1-4 and the second clamping roller 1-5 are driven in opposite directions. Specifically, a first gear 1-6 is coaxially connected to the first clamping roller 1-4, and a second gear 1-8 is coaxially connected to the second clamping roller 1-5. The first gear 1-6 and the second gear 1-8 are both on the same side and are in meshing transmission connection.

[0055] Moreover, a peeling machine cover plate 1-2 is also provided on the frame of the peeling device. The peeling machine cover plate 1-2 covers the two clamping roller groups to prevent the corn ears from falling off. A plurality of stripping plates 1-3 are provided between the peeling machine cover plate 1-2 and the two clamping roller groups to be used for separating the corn husks. Each stripping plate 1-3 is equally spaced along the conveying direction of the corn ears. Specifically, a plurality of cross bars are provided on the frame of the peeling device. Each cross bar is located between the peeling machine cover plate 1-2 and the two clamping roller groups and is equally spaced along the conveying direction of the corn ears.

[0056] The entire peeling and threshing test bench mainly includes a corn peeling device 1, a corn conveying device 2, and a corn threshing device 3. Among them, the corn peeling device 1 can strip the husks of the corn ears and discharge them orderly; the corn conveying device 2 connects the corn peeling device 1 and the corn threshing device 3 and feeds the ears into the corn threshing device 3 in sequence; the corn threshing device 3 can squeeze and rub each peeled corn ear for threshing, collect the grains, and discharge the ear cores separately, realizing automatic peeling and orderly feeding of the ears, saving labor and improving work efficiency.

[0057] Adaptations made according to actual needs are all within the scope of protection of the present invention.

[0058] It should be noted that for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0059] Specific examples are used in the present invention to illustrate the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A corn threshing device, characterized in that, It comprises a threshing device frame and a floating roller, a pushing roller and a fixed roller for squeezing and kneading corn ears; the floating roller, the pushing roller and the fixed roller are not parallel to each other and are synchronously driven and connected; The push roller extends horizontally and is rotatably mounted on the frame of the threshing device; The fixed roller extends vertically and obliquely and is parallel to the conveying direction of the corn ears, and both ends of the fixed roller are rotatably mounted on the frame of the threshing device; The floating roller is located at a position of the fixed roller away from the feeding side of the corn cob, and one end of the floating roller is connected to a universal joint, the universal joint is close to the position where the corn cob is discharged, and is rotatably connected to the threshing device frame, and the other end of the floating roller is close to the position where the corn cob enters; The floating roller is equipped with a swing arm arranged near the entry position of the corn cobs, one end of the swing arm is rotatably connected to the end of the floating roller where the universal joint is not arranged, and the other end is rotatably connected to the threshing device frame. The swing arm is provided with a tension component for applying tension to the swing arm on the side close to the entry of the corn cobs in the horizontal direction, one end of the tension component is movably connected to the swing arm, and the other end is movably connected to the threshing device frame along a direction perpendicular to the transmission of the corn cobs.

2. The corn threshing device according to claim 1, wherein The tension component comprises a tension spring and two position adjustment sleeves respectively connected to the two ends of the tension spring, one of the position adjustment sleeves can be movably mounted on the swing arm, and the other position adjustment sleeve can be movably mounted on the frame of the threshing device.

3. The corn threshing device according to claim 2, characterized in that, The threshing device frame is provided with a horizontal tie rod extending in a direction perpendicular to the corn cob transmission direction, and the position adjustment sleeve not connected to the swing arm is threadedly connected to the horizontal tie rod.

4. The corn threshing device according to claim 2 or 3, characterized in that, The swing arm includes a floating screw and two fisheye joints respectively connected to the two ends of the floating screw, one of the fisheye joints is rotatably connected to the floating roller, and the other fisheye joint is rotatably connected to the threshing device frame, and the position adjustment sleeve matched with the swing arm is threadedly connected to the floating screw.

5. The corn threshing device according to claim 4, characterized in that, The push roller includes an outer ring portion and a push roller shaft driving the push roller to rotate, the outer ring portion is coaxially provided with a through hole for the push roller to extend into, and two torsion springs are sleeved on the push roller shaft, the two torsion springs are each provided with a first leg located at a middle position between the two torsion springs, the first leg is connected to the push roller shaft, and the two torsion springs are each provided with a second leg located on a side opposite to the first leg, and the second leg is connected to the outer ring portion.

6. The corn threshing device according to claim 5, characterized in that, Two bearing seats rotatably sleeved on the pushing roller shaft are arranged in the through hole at intervals, and spring components are arranged in an array with equal intervals along the circumferential direction on the outer peripheral side of each bearing seat, and each spring component is connected to the outer ring part.

7. The corn threshing device according to claim 6, characterized in that, The fixed roller includes an extrusion section and a discharge section that are coaxially connected. The extrusion section is arranged near the entrance of the corn cobs, and a pattern for extruding and kneading the corn cobs is provided on its outer peripheral wall. The discharge section is arranged near the discharge of the corn cobs, and an auger piece is surrounded on its outer peripheral wall. The auger piece extends spirally along the axial direction of the discharge section.

8. The corn threshing device according to claim 7, wherein, It further includes a belt drive mechanism located on the side corresponding to the entry of corn ears of the threshing device frame. The belt drive mechanism includes a reversing pulley, a tensioning pulley, a driving pulley, and a first fixed roller pulley. The driving pulley and the first fixed roller pulley are respectively coaxially installed on the pushing roller shaft and the fixed roller. The reversing pulley and the tensioning pulley are both located between the first fixed roller pulley and the driving pulley and are both installed on the threshing device frame. The driving pulley, the reversing pulley, the first fixed roller pulley, and the tensioning pulley are synchronously wound with a first conveyor belt; The belt drive mechanism further includes a second fixed roller pulley and a floating roller pulley located on the side corresponding to the discharge of corn ears of the threshing device frame. The second fixed roller pulley is coaxially installed on the fixed roller, and the floating roller pulley is coaxially installed at the universal joint. A second conveyor belt is synchronously wound between the second fixed roller pulley and the floating roller pulley.

9. A peeling and threshing test bench applying the corn threshing device according to any one of claims 1 to 8, characterized in that, It includes a corn threshing device and a corn conveying device arranged on the feeding side of the threshing device frame. The corn conveying device includes a corn conveying frame. An independently arranged left conveyor belt, a middle conveyor belt, and a right conveyor belt are provided on the corn conveying frame. The left conveyor belt, the middle conveyor belt, and the right conveyor belt are arranged side by side and closely arranged in a direction perpendicular to the conveyance of corn ears, and are respectively equipped with a driving mechanism for driving their conveyance.

10. The corn threshing device according to claim 9, characterized in that, A corn husking device is provided on the feeding side of the corn conveying device. The corn husking device includes a husking device frame. Two sets of clamping roller groups for clamping corn husks are provided on the husking device frame. The two clamping roller groups are arranged side by side in a direction perpendicular to the conveyance of corn ears; The clamping roller group includes a first clamping roller and a second clamping roller that rotate synchronously and reversely and both extend in the direction of corn ear conveyance. A clamping gap for clamping corn husks is provided between the first clamping roller and the second clamping roller. Both ends of the first clamping roller are movably installed on the husking device frame along the radial direction of the second clamping roller. The two second clamping rollers are arranged side by side and closely arranged, and are supported under the corn ears. A spiral pattern for conveying corn ears is provided on the second clamping roller.

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