A red kidney bean thresher

Abstract

The present invention relates to the technical field of threshers, and particularly relates to a red kidney bean thresher, which includes a threshing bin and a threshing roller assembly. The threshing bin is used to accommodate kidney beans. The threshing roller assembly includes threshing rods and a driving assembly. The threshing rods are located inside the threshing bin, and the driving assembly is used to drive the threshing rods to move relative to the threshing bin, so that the threshing rods strike the kidney beans placed in the threshing bin to separate the kidney bean grains from the pods. Cutting blades are provided on the threshing rods, and the cutting blades are used to cut the kidney bean vines. The red kidney bean thresher of the present application facilitates cutting longer kidney bean vines into several shorter kidney bean vines, thereby reducing the length of a single kidney bean vine, and further reducing the probability of the kidney bean vine winding around the threshing roller assembly, which is more conducive to the threshing rods to strike the kidney beans, and further improves the acquisition efficiency of kidney bean grains.

Description

Technical Field

[0001] The present invention relates to the technical field of threshers, and particularly relates to a red kidney bean thresher. Background Art

[0002] A thresher is a machine for threshing crops, and the crops usually refer to corn, kidney beans, wheat, rice, etc. Its main function is to separate the grains from the crops and remove impurities such as the husks and branches of the ears or pods.

[0003] When using a thresher to thresh crops, generally, the operator first puts the crops into the threshing device. The ears or pods of the crops will be broken, rubbed and struck through the threshing device, so that the crop grains are separated from the ears or pods, thereby completing the threshing of the crops.

[0004] Although the current threshers can improve the processing efficiency of crops and reduce the labor intensity of operators, in actual use, the current threshers still have deficiencies. Specifically, when threshing red kidney beans, since the vines of red kidney beans are usually numerous and long, after the red kidney beans are put into the threshing device, the long vines are easily wound around the threshing roller. On the one hand, it increases the resistance of the threshing roller to rotate. On the other hand, after the vines are wound around the threshing roller, it is easy to cause the vines to rotate synchronously with the threshing roller, so that it is difficult for the threshing roller to break the pods on the vines wound around the threshing roller, increasing the probability of kidney bean grains remaining in the pods on the vines.

[0005] Therefore, how to reduce the probability of the vines of red kidney beans being wound around the threshing roller is an urgent problem to be solved at present. Summary of the Invention

[0006] The purpose of the present invention is to provide a red kidney bean thresher to reduce the probability of the vines of red kidney beans being wound around the threshing roller in view of the current deficiency that the vines of red kidney beans are easily wound around the threshing roller.

[0007] To achieve the above invention purpose, the present invention provides the following technical solutions:

[0008] A red kidney bean thresher includes a threshing bin and a threshing roller assembly. The threshing bin is used to hold kidney beans. The threshing roller assembly includes threshing rods and a driving assembly. The threshing rods are located in the threshing bin. The driving assembly is used to drive the threshing rods to move relative to the threshing bin, so that the threshing rods strike the kidney beans put in the threshing bin, so that the kidney bean grains are separated from the pods. Cutting blades are arranged on the threshing rods, and the cutting blades are used to cut the kidney bean vines.

[0009] As a preferred technical solution of the present application, the driving assembly includes a turntable and a cross bar. The cross bar is arranged on the turntable. The length direction of the cross bar is the same as the length direction of the threshing bin. The end of the threshing rod is rotatably connected to the cross bar. There are several threshing rods, and several threshing rods are arranged along the length direction of the cross bar. The turntable is adapted with a motor device, and the motor device is used to drive the turntable to rotate so that the cross bar rotates synchronously with the turntable;

[0010] The position of the threshing rod that is connected to the cross bar is offset from the center of gravity of the threshing rod.

[0011] As a preferred technical solution of the present application, the threshing rod includes a threshing rod body and a first rod body. A blade fitting groove and a first sliding groove are provided on the threshing rod body. The cutting blade is matched with the blade fitting groove. A first spring is connected between the cutting blade and the threshing rod body, and the first spring has elasticity;

[0012] The first rod body is matched with the first sliding groove. A resisting block is provided on the threshing rod body. A second spring is connected between the resisting block and the first rod body, and the second spring has elasticity. The length direction of the first sliding groove is the same as the length direction of the threshing rod body, and the first rod body can slide along the length direction of the first sliding groove;

[0013] The first rod body abuts against the cutting blade;

[0014] The threshing rod has an initial state. When the threshing rod is in the initial state, the cutting blade extends out of the blade fitting groove, and the first spring is in a stretched state;

[0015] When the motor device drives the turntable to rotate, under the action of centrifugal force, the first rod body can slide relative to the first sliding groove in a direction away from the rotation axis of the turntable. During the process of the first rod body sliding relative to the first sliding groove in a direction away from the rotation axis of the turntable, the position of the cutting blade that abuts against the first rod body changes, the deformation amount of the first spring gradually decreases, the cutting blade gradually retracts into the blade fitting groove, and the deformation amount of the second spring gradually increases.

[0016] As a preferred technical solution of the present application, a first resisting portion is provided in the blade fitting groove. The first resisting portion is used to abut against the cutting blade and limit the elongation amount of the cutting blade when it extends out of the blade fitting groove so that the cutting blade is always in a state of being matched with the blade fitting groove.

[0017] As a preferred technical solution of the present application, the position of the resisting block in the length direction of the threshing rod body is adjustable so that when the threshing rod is in the initial state, the initial deformation amount of the second spring is adjustable.

[0018] As a preferred technical solution of the present application, the abutting block includes a first abutting block part and a second abutting block part. The first abutting block part and the second abutting block part are rotatably connected. The rotation axis of the first abutting block part and the second abutting block part is in the same direction as the length direction of the threshing rod body. The first abutting block part is connected to the second spring, and the second abutting block part is threadedly connected to the threshing rod body;

[0019] When the second abutting block part rotates relative to the threshing rod body, the abutting block moves relative to the threshing rod body along the length direction of the threshing rod body.

[0020] As a preferred technical solution of the present application, the threshing rod further includes a second rod body. A second sliding groove and a gear are further provided on the threshing rod body. The second rod body is matched with the second sliding groove. The length direction of the second sliding groove is in the same direction as the length direction of the threshing rod body. A first rack is provided on the first rod body, and a second rack is provided on the second rod body. The first rack meshes with the gear, the second rack meshes with the gear, and the meshing part of the first rack and the gear and the meshing part of the second rack and the gear are opposite to each other with respect to the gear;

[0021] When the threshing rod is in the initial state, the threshing rod is in the maximum length state;

[0022] Under the action of centrifugal force, when the first rod body slides relative to the first sliding groove in a direction away from the rotation axis of the turntable, the first rack drives the gear to move, and the gear drives the second rack to rotate, so that the second rod body slides relative to the second sliding groove in a direction close to the rotation axis of the turntable, and the length of the threshing rod becomes shorter.

[0023] As a preferred technical solution of the present application, the second rod body includes a second main rod body and a second sub-rod body. The second main rod body is connected to the second sub-rod body. The position of the second sub-rod body relative to the second main rod body is adjustable. By adjusting the position of the second sub-rod body relative to the second main rod body, the length of the second rod body is adjusted.

[0024] As a preferred technical solution of the present application, when the threshing rod is in the initial state, the minimum distance between the inner wall of the threshing bin and the end of the threshing rod away from the rotation axis of the turntable is d, 0 < distance d < 3 cm.

[0025] As a preferred technical solution of the present application, a plurality of cross bars are provided on the turntable, and the plurality of cross bars are evenly distributed in the area near the edge of the turntable.

[0026] Compared with the prior art, the beneficial effects of the present invention:

[0027] 1. In the solution of this application, by arranging a cutting blade on the threshing rod, during the process of threshing the kidney beans placed in the threshing bin, the driving component drives the threshing rod to move, so that the cutting blade on the threshing rod moves together with the threshing rod, and then the cutting blade cuts the kidney bean vines of the kidney beans, so as to cut the longer kidney bean vines into several shorter kidney bean vines, thereby reducing the length of a single kidney bean vine, and further reducing the probability of the kidney bean vines winding around the threshing roller assembly, which is more conducive to the threshing rod hitting the kidney beans, and further improving the acquisition efficiency of kidney bean grains;

[0028] 2. Further, by arranging a turntable and a cross bar, and several threshing rods are rotatably connected to the cross bar, thereby further increasing the degree of hitting the kidney beans by the threshing rods, so as to improve the threshing efficiency. Moreover, after staggering the position where the threshing rod is connected to the cross bar from the center of gravity of the threshing rod, when the turntable rotates at a high speed, under the action of centrifugal force, the center of gravity of the threshing rod and the extension line of the line connecting the position for connecting to the cross bar on the threshing rod can pass through the rotation axis of the turntable; when the turntable rotates at a low speed, the line connecting the center of gravity of the threshing rod and the position for connecting to the cross bar on the threshing rod can be in the vertical direction. When the center of gravity of the threshing rod is at the central axis of the threshing rod or near the central axis of the threshing rod, the threshing rod can be in a vertical state during the low-speed movement with the turntable; thus, when putting kidney beans into the threshing bin, when the threshing rod is in a static state or a low-speed rotation state, the threshing rod is in a vertical state, so that there is no threshing rod in the upper area of the threshing bin, thereby providing more accommodation space for the put kidney beans, improving the convenience when the kidney beans are put into the threshing bin, and when the threshing rod and the turntable are both in a high-speed rotation state, it is more conducive to the threshing rod hitting the kidney beans;

[0029] 3. Further, by providing the first rod body which abuts against the cutting blade, when the first rod body slides along the length direction of the first chute, the position on the cutting blade that abuts against the first rod body changes, causing the cutting blade to move relative to the blade fitting groove, and further causing the cutting blade to extend out of or retract into the blade fitting groove. Furthermore, when the turntable is in a low-speed rotation state, the threshing rod is in an initial state, and its cutting blade extends out of the blade fitting groove. Along with the rotation of the threshing rod, the cutting blade cuts the kidney bean vine under low-speed movement, so that while cutting the kidney bean vine, it can avoid damaging the kidney bean grains by the high-speed moving cutting blade, thereby reducing the probability of the kidney bean grains being cut by the cutting blade; when the turntable is in a high-speed rotation state, under the action of centrifugal force, the first rod body can slide relative to the first chute in a direction away from the central axis of the turntable, reducing the deformation amount of the first spring. Under the action of the gradual recovery of the deformation amount of the first spring, the cutting blade gradually retracts into the blade fitting groove, so that when the threshing rod is in a high-speed movement state, it can avoid cutting the kidney beans by the high-speed moving cutting blade, further reducing the probability of the kidney bean grains being cut by the cutting blade. At the same time, it is beneficial for the high-speed moving threshing rod to strike the kidney beans, thereby improving the threshing efficiency of kidney beans and the integrity of kidney bean grains;

[0030] 4. Further, by providing the second rod body and the gear, the first rack on the first rod body meshes with the gear, and the second rack on the second rod body meshes with the gear, and the part where the first rack meshes with the gear and the part where the second rack meshes with the gear are opposite to each other with respect to the gear. In this way, the movement direction of the first rod body relative to the threshing rod body is opposite to the movement direction of the second rod body relative to the threshing rod body; when the threshing rod is in an initial state, the threshing rod is in a maximum length state. In this state, the turntable can be in a low-speed rotation state, so that when the threshing rod moves to the lowest position, the distance between the threshing rod and the inner wall of the threshing bin can be made the closest. Thus, it is more conducive for the threshing rod to contact the kidney beans to stir the kidney beans, and further, on the basis of reducing the risk of kidney bean grain breakage, the degree of stirring of the kidney beans in the threshing bin is greatly improved, and at the same time, it is more conducive for the cutting blade on the threshing rod to cut the kidney bean vine;

[0031] Further, as the rotation speed of the turntable continuously increases, under the action of centrifugal force, the first rod body can slide relative to the first chute in a direction away from the central axis of the turntable, and driven by the gear, the second rod body slides relative to the second chute in a direction close to the rotation axis of the turntable, so that the length of the threshing rod gradually becomes shorter. In this way, the distance between the bottom end of the threshing rod and the inner wall of the threshing bin is increased, providing a certain space for the movement of the kidney bean grains during the threshing process, and being able to reduce the probability of the threshing rod hitting the threshed kidney bean grains, thereby reducing the risk of kidney bean grain breakage. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of a partial structure of one implementation manner of a red kidney bean thresher of the present application;

[0033] Figure 2 It is a schematic diagram of the structure of one implementation manner of a red kidney bean thresher of the present application;

[0034] Figure 3 It is a schematic diagram of the structure when the threshing rod is in a vertical state in one implementation manner of a red kidney bean thresher of the present application;

[0035] Figure 4 It is a schematic diagram of the overall structure of one implementation manner of a red kidney bean thresher of the present application;

[0036] Figure 5 It is a schematic diagram of the threshing rod in one implementation manner of a red kidney bean thresher of the present application;

[0037] Figure 6 It is a schematic diagram of a partial structure at the first resistance portion in one implementation manner of a red kidney bean thresher of the present application;

[0038] Figure 7 It is a schematic diagram of a partial structure at the second secondary rod body in one implementation manner of a red kidney bean thresher of the present application;

[0039] Figure 8 It is a schematic diagram of the structure when the threshing rod is in an initial state in one implementation manner of a red kidney bean thresher of the present application;

[0040] Figure 9 It is a schematic diagram of a partial structure at the second secondary rod body when the threshing rod is in an initial state in one implementation manner of a red kidney bean thresher of the present application;

[0041] In the figure, the markings are as follows: 1 - threshing bin, 2 - threshing roller assembly, 3 - threshing rod, 4 - drive assembly, 5 - cutting blade, 6 - turntable, 7 - cross bar, 8 - motor device, 9 - threshing rod body, 10 - first rod body, 11 - blade fitting groove, 12 - first chute, 13 - first spring, 14 - abutting block, 15 - second spring, 16 - first resistance portion, 17 - first abutting part of the abutting block, 18 - second abutting part of the abutting block, 19 - second rod body, 20 - second chute, 21 - gear, 22 - first rack, 23 - second rack, 24 - second main rod body, 25 - second secondary rod body. Specific embodiments

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0043] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. 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 scope of protection of the present invention.

[0044] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0045] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

[0046] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present invention is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms 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, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0047] Embodiment 1: A red kidney bean thresher provided in this embodiment, as shown in Figures 1 - 9 Figure 1, includes a threshing bin 1 and a threshing roller assembly 2. The threshing bin 1 is used to hold kidney beans. The threshing roller assembly 2 includes threshing rods 3 and a driving assembly 4. The threshing rods 3 are located inside the threshing bin 1. The driving assembly 4 is used to drive the threshing rods 3 to move relative to the threshing bin 1, so that the threshing rods 3 strike the kidney beans placed in the threshing bin 1 to separate the kidney bean grains from the pods. Cutting blades 5 are provided on the threshing rods 3, and the cutting blades 5 are used to cut the kidney bean vines.

[0048] In the present application, by arranging a cutting blade 5 on the threshing rod 3, during the process of threshing the kidney beans placed in the threshing bin 1, the driving assembly 4 drives the threshing rod 3 to move, so that the cutting blade 5 on the threshing rod 3 moves together with the threshing rod 3, and then the cutting blade 5 cuts the kidney bean vines of the kidney beans, so as to cut the longer kidney bean vines into several shorter kidney bean vines, thereby reducing the length of a single kidney bean vine, and further reducing the probability of the kidney bean vines being entangled in the threshing roller assembly 2, which is more conducive to the threshing rod 3 to strike the kidney beans, thereby improving the efficiency of obtaining kidney bean grains.

[0049] As a preferred embodiment, on the basis of the above-mentioned manner, further, the driving assembly 4 includes a turntable 6 and a cross bar 7, the cross bar 7 is arranged on the turntable 6, the length direction of the cross bar 7 is in the same direction as the length direction of the threshing bin 1, the end of the threshing rod 3 is rotatably connected to the cross bar 7, the threshing rod 3 is a plurality of threshing rods 3, and the plurality of threshing rods 3 are arranged along the length direction of the cross bar 7, the turntable 6 is adapted to be equipped with a motor device 8, and the motor device 8 is used to drive the turntable 6 to rotate, so that the cross bar 7 and the turntable 6 rotate synchronously;

[0050] The portion of the threshing bar 3 that is connected to the cross bar 7 is offset from the center of gravity of the threshing bar 3 .

[0051] Furthermore, by providing a turntable 6 and a cross bar 7, and rotatably connecting a plurality of threshing rods 3 to the cross bar 7, the degree of striking of the kidney beans by the threshing rods 3 is further improved, thereby improving the threshing efficiency. Moreover, after the portion of the threshing rod 3 that is connected to the cross bar 7 is staggered from the center of gravity of the threshing rod 3, when the turntable 6 rotates at a high speed, the threshing rod 3, under the action of the centrifugal force, can make the extension line of the line connecting the center of gravity of the threshing rod 3 and the portion of the threshing rod 3 that is connected to the cross bar 7 pass through the rotation axis of the turntable 6; when the turntable 6 rotates at a low speed, the extension line of the line connecting the center of gravity of the threshing rod 3 and the portion of the threshing rod 3 that is connected to the cross bar 7 can pass through the rotation axis of the turntable 6. The line is in a vertical direction, and when the center of gravity of the threshing rod 3 is at the central axis of the threshing rod 3, or when the center of gravity of the threshing rod 3 is near the central axis of the threshing rod 3, the threshing rod 3 can be in a vertical state during the low-speed movement with the turntable 6; in this way, when kidney beans are put into the threshing bin 1, when the threshing rod 3 is in a stationary state or a low-speed rotating state, the threshing rod 3 is in a vertical state, so that there is no threshing rod 3 in the upper area of ​​the threshing bin 1, thereby providing more accommodating space for the put kidney beans, improving the convenience of putting the kidney beans into the threshing bin 1, and when the threshing rod 3 and the turntable 6 are in a high-speed rotating state, it is more conducive to the threshing rod 3 to hit the kidney beans.

[0052] Specifically, the output shaft of the motor on the motor device 8 is connected to the turntable 6, thereby driving the turntable 6 to rotate. The specific structure is prior art, so it will not be described here.

[0053] As a preferred embodiment, on the basis of the above method, further, the threshing rod 3 includes a threshing rod body 9 and a first rod body 10. A blade fitting groove 11 and a first sliding groove 12 are provided on the threshing rod body 9. The cutting blade 5 is fitted with the blade fitting groove 11. A first spring 13 is connected between the cutting blade 5 and the threshing rod body 9, and the first spring 13 has elasticity;

[0054] The first rod body 10 is fitted with the first sliding groove 12. A stopper 14 is provided on the threshing rod body 9. A second spring 15 is connected between the stopper 14 and the first rod body 10, and the second spring 15 has elasticity. The length direction of the first sliding groove 12 is the same as the length direction of the threshing rod body 9, and the first rod body 10 can slide along the length direction of the first sliding groove 12;

[0055] The first rod body 10 abuts against the cutting blade 5;

[0056] The threshing rod 3 has an initial state. When the threshing rod 3 is in the initial state, the cutting blade 5 extends out of the blade fitting groove 11, and the first spring 13 is in a stretched state;

[0057] When the motor device 8 drives the turntable 6 to rotate, under the action of centrifugal force, the first rod body 10 can slide relative to the first sliding groove 12 in a direction away from the rotation axis of the turntable 6. During the process of the first rod body 10 sliding relative to the first sliding groove 12 in a direction away from the rotation axis of the turntable 6, the position of the cutting blade 5 that abuts against the first rod body 10 changes, the deformation amount of the first spring 13 gradually decreases, the cutting blade 5 gradually retracts into the blade fitting groove 11, and the deformation amount of the second spring 15 gradually increases.

[0058] Furthermore, by providing the first rod body 10 which abuts against the cutting blade 5, when the first rod body 10 slides along the length direction of the first chute 12, the position of the cutting blade 5 that abuts against the first rod body 10 changes, causing the cutting blade 5 to move relative to the blade fitting groove 11. As a result, the cutting blade 5 extends out of or retracts into the blade fitting groove 11. Further, when the turntable 6 is in a low-speed rotation state, the threshing rod 3 is in an initial state, and its cutting blade 5 extends out of the blade fitting groove 11. Along with the rotation of the threshing rod 3, the cutting blade 5 cuts the kidney bean vine under low-speed movement, thereby avoiding damage to the kidney bean grains by the high-speed moving cutting blade 5 while cutting the kidney bean vine, and further reducing the probability of the kidney bean grains being cut by the cutting blade 5. When the turntable 6 is in a high-speed rotation state, under the action of centrifugal force, the first rod body 10 can slide relative to the first chute 12 in a direction away from the central axis of the turntable 6, reducing the deformation amount of the first spring 13. Under the action of the gradual recovery of the deformation amount of the first spring 13, the cutting blade 5 gradually retracts into the blade fitting groove 11, so that when the threshing rod 3 is in a high-speed movement state, the high-speed moving cutting blade 5 can be prevented from cutting the kidney beans, further reducing the probability of the kidney bean grains being cut by the cutting blade 5. At the same time, it is beneficial for the high-speed moving threshing rod 3 to strike the kidney beans, thereby improving the kidney bean threshing efficiency and the integrity of the kidney bean grains.

[0059] As a preferred embodiment, on the basis of the above method, further, a first resisting portion 16 is provided in the blade fitting groove 11. The first resisting portion 16 is used to abut against the cutting blade 5 and limit the elongation amount of the cutting blade 5 when it extends out of the blade fitting groove 11, so that the cutting blade 5 is always in a state of matching with the blade fitting groove 11.

[0060] Furthermore, by providing the first resisting portion 16 which is used to abut against the cutting blade 5 to limit the elongation amount of the cutting blade 5 when it extends out of the fitting groove, the stability of the cooperation between the cutting blade 5 and the blade fitting groove 11 is improved.

[0061] Embodiment 2: On the basis of the technical solution of Embodiment 1, further, as shown in Figures 1 - 9 the position of the abutting block 14 is adjustable along the length direction of the threshing rod body 9, so that when the threshing rod 3 is in the initial state, the initial deformation amount of the second spring 15 is adjustable.

[0062] Further, the position of the abutting block 14 is adjustable along the length direction of the threshing rod body 9. In this way, by adjusting the position of the abutting block 14, when the threshing rod 3 is in the initial state, the initial deformation amount of the second spring 15 can be adjusted. Thus, when the rotational speed of the turntable 6 driven by the motor device 8 is constant, different initial deformation amounts of the second spring 15 will result in different displacement amounts of the first rod body 10 relative to the threshing rod body 9, causing the position of the cutting blade 5 relative to the blade fitting groove 11 to be different. Therefore, the rotational speed of the turntable 6 required for the cutting blade 5 to completely retract into the blade fitting groove 11 can be adjusted, which is more conducive to the operator controlling the extension or retraction of the cutting blade 5.

[0063] As a preferred embodiment, on the basis of the above method, further, the abutting block 14 includes an abutting block part one 17 and an abutting block part two 18. The abutting block part one 17 and the abutting block part two 18 are rotatably connected. The rotation axis of the abutting block part one 17 and the abutting block part two 18 is the same as the length direction of the threshing rod body 9. The abutting block part one 17 is connected to the second spring 15, and the abutting block part two 18 is threadedly connected to the threshing rod body 9.

[0064] When the abutting block part two 18 rotates relative to the threshing rod body 9, the abutting block 14 moves relative to the threshing rod body 9 along the length direction of the threshing rod body 9.

[0065] Further, by providing the abutting block part one 17 and the abutting block part two 18, when the abutting block part two 18 rotates relative to the threshing rod body 9, the abutting block part two 18 drives the abutting block part one 17 to move along the length direction of the threshing rod body 9, so that the abutting block 14 moves relative to the threshing rod body 9 along the length direction of the threshing rod 3, improving the convenience of adjusting the position of the abutting block 14.

[0066] Embodiment Three: On the basis of the technical solution of Embodiment Two, further, as shown in Figures 1 - 9 the threshing rod 3 further includes a second rod body 19. A second sliding groove 20 and a gear 21 are further provided on the threshing rod body 9. The second rod body 19 is matched with the second sliding groove 20. The length direction of the second sliding groove 20 is the same as the length direction of the threshing rod body 9. A first rack 22 is provided on the first rod body 10, and a second rack 23 is provided on the second rod body 19. The first rack 22 meshes with the gear 21, the second rack 23 meshes with the gear 21, and the meshing part of the first rack 22 and the gear 21 and the meshing part of the second rack 23 and the gear 21 are opposite sides with respect to the gear 21.

[0067] When the threshing rod 3 is in the initial state, the threshing rod 3 is in the maximum length state.

[0068] When the first rod body 10 slides relative to the first chute 12 in a direction away from the rotation axis of the turntable 6 under the action of centrifugal force, the first rack 22 drives the gear 21 to move, and the gear 21 drives the second rack 23 to rotate, so that the second rod body 19 slides relative to the second chute 20 in a direction close to the rotation axis of the turntable 6, shortening the length of the threshing rod 3.

[0069] Further, by arranging the second rod body 19 and the gear 21, the first rack 22 on the first rod body 10 meshes with the gear 21, and the second rack 23 on the second rod body 19 meshes with the gear 21. And the meshing part of the first rack 22 and the gear 21 and the meshing part of the second rack 23 and the gear 21 are opposite to each other with respect to the gear 21. In this way, the moving direction of the first rod body 10 relative to the threshing rod body 9 is opposite to the moving direction of the second rod body 19 relative to the threshing rod body 9; when the threshing rod 3 is in the initial state, the threshing rod 3 is in the maximum length state. In this state, the turntable 6 can be in a low-speed rotation state, so that when the threshing rod 3 moves to the lowest position, the distance between the threshing rod 3 and the inner wall of the threshing bin 1 can be the closest. Thus, it is more conducive for the threshing rod 3 to contact the kidney beans to stir the kidney beans, and further, on the basis of reducing the risk of kidney bean grain breakage, the degree of stirring of the kidney beans in the threshing bin 1 is greatly improved, and at the same time, it is more conducive for the cutting blade 5 on the threshing rod 3 to cut the kidney bean vines.

[0070] Further, as the rotation speed of the turntable 6 continuously increases, under the action of centrifugal force, the first rod body 10 can slide relative to the first chute 12 in a direction away from the central axis of the turntable 6, and driven by the gear 21, the second rod body 19 slides relative to the second chute 20 in a direction close to the rotation axis of the turntable 6, so that the length of the threshing rod 3 gradually shortens. In this way, the distance between the bottom end of the threshing rod 3 and the inner wall of the threshing bin 1 is increased, providing a certain space for the movement of the kidney bean grains during the threshing process, and reducing the probability of the threshing rod 3 hitting the threshed kidney bean grains, thereby reducing the risk of kidney bean grain breakage.

[0071] As a preferred embodiment, on the basis of the above method, further, the second rod body 19 includes a second main rod body 24 and a second sub-rod body 25. The second main rod body 24 is connected to the second sub-rod body 25, and the position of the second sub-rod body 25 relative to the second main rod body 24 is adjustable. By adjusting the position of the second sub-rod body 25 relative to the second main rod body 24, the length of the second rod body 19 is adjusted.

[0072] Further, by providing the second main rod body 24 and the second auxiliary rod body 25, the length of the second rod body 19 can be adjusted by adjusting the position of the second auxiliary rod body 25 relative to the second main rod body 24. Further, when the threshing rod 3 is in the initial state, the distance between the bottom end of the threshing rod 3 and the inner wall of the threshing bin 1 can be adjusted, thereby improving the convenience of adjusting the distance. At the same time, the second main rod body 24 and the second auxiliary rod body 25 are connected by threads. The specific connection method is the prior art and will not be elaborated herein.

[0073] As a preferred embodiment, on the basis of the above method, further, when the threshing rod 3 is in the initial state, the minimum distance between the inner wall of the threshing bin 1 and the end of the threshing rod 3 far from the rotation axis of the turntable 6 is d, where 0 < distance d < 3 cm.

[0074] Further, when the threshing rod 3 is in the initial state, make 0 < distance d < 3 cm. During the low-speed rotation of the turntable 6, the threshing rod 3 can contact the kidney bean grains on the inner wall of the threshing bin 1, so as to push the kidney bean grains in the threshing bin 1 to move. Further, the kidney bean grains in the threshing bin 1 can fall onto the kidney bean grain collection device through the filter screen on the inner wall of the threshing bin 1, improving the convenience of collecting the kidney bean grains.

[0075] As a preferred embodiment, on the basis of the above method, further, a plurality of cross bars 7 are provided on the turntable 6, and the plurality of cross bars 7 are evenly distributed in the area near the edge of the turntable 6.

[0076] Further, by providing a plurality of cross bars 7, the threshing rods 3 in the threshing bin 1 are more widely distributed, thereby further improving the threshing efficiency of kidney beans. At the same time, the plurality of cross bars 7 are evenly distributed in the area near the edge of the turntable 6, so as to increase the centrifugal force received by the threshing rod 3 when the turntable 6 rotates. It is more conducive to the threshing rod 3 under the action of centrifugal force, so that the extension line of the connection line between the center of gravity of the threshing rod 3 and the part of the threshing rod 3 for connecting with the cross bar 7 passes through the rotation axis of the turntable 6.

[0077] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although the present specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A red kidney bean thresher, characterized in that: It comprises a threshing bin and a threshing roller assembly, wherein the threshing bin is used to contain kidney beans, and the threshing roller assembly comprises a threshing rod and a driving assembly, wherein the threshing rod is located in the threshing bin, and the driving assembly is used to drive the threshing rod to move relative to the threshing bin, so that the threshing rod strikes the kidney beans put in the threshing bin, so that the kidney beans are separated from the pods, and the threshing rod is provided with a cutting blade, and the cutting blade is used to cut the kidney bean vines; The driving assembly includes a turntable and a crossbar. The crossbar is arranged on the turntable. The length direction of the crossbar is in the same direction as the length direction of the threshing bin. The end of the threshing rod is rotatably connected with the crossbar. The turntable is adapted to be equipped with a motor device. The motor device is used to drive the turntable to rotate so that the crossbar and the turntable rotate synchronously. The part of the threshing rod that is connected to the crossbar is staggered from the center of gravity of the threshing rod. The threshing rod comprises a threshing rod body and a first rod body, the threshing rod body is provided with a blade matching groove and a first sliding groove, the cutting blade matches with the blade matching groove, a first spring is connected between the cutting blade and the threshing rod body, and the first spring has elasticity; The first rod body cooperates with the first slide groove, a stop block is arranged on the threshing rod body, a second spring is connected between the stop block and the first rod body, the second spring is elastic, the length direction of the first slide groove is in the same direction as the length direction of the threshing rod body, and the first rod body can slide along the length direction of the first slide groove; the first rod body is against the cutting blade; The threshing rod has an initial state. When the threshing rod is in the initial state, the cutting blade extends out of the blade matching groove, and the first spring is in a stretched state. When the motor device drives the turntable to rotate, under the action of centrifugal force, the first rod body can slide relative to the first slide groove in the direction away from the rotation axis of the turntable. In the process of the first rod body sliding relative to the first slide groove in the direction away from the rotation axis of the turntable, the position of the cutting blade that abuts against the first rod body changes, the deformation of the first spring gradually decreases, the cutting blade gradually retracts into the blade matching groove, and the deformation of the second spring gradually increases.

2. A red kidney bean thresher as claimed in claim 1, characterized in that: There are a plurality of threshing bars, which are arranged along the length direction of the cross bar.

3. A red kidney bean thresher as claimed in claim 2, characterized in that: A first stop is provided in the blade matching groove, and the first stop is used to abut against the cutting blade. The first stop is used to limit the elongation of the cutting blade when it extends out of the blade matching groove, so that the cutting blade is always in a state of matching with the blade matching groove.

4. A red kidney bean thresher as claimed in claim 3, characterized in that: The position of the stop block along the length direction of the threshing rod body is adjustable, so that when the threshing rod is in an initial state, the initial deformation amount of the second spring is adjustable.

5. A red kidney bean thresher as claimed in claim 4, characterized in that: The resist block comprises a resist block part and a resist block part, the resist block part and the resist block part are rotatably connected, the rotation axes of the resist block part and the resist block part are in the same direction as the length direction of the threshing rod body, the resist block part is connected to the second spring, and the resist block part is threadedly connected to the threshing rod body; When the two parts of the stop block rotate relative to the threshing rod body, the stop block moves relative to the threshing rod body along the length direction of the threshing rod body.

6. A red kidney bean thresher as claimed in claim 5, characterized in that: The threshing rod also includes a second rod body, a second slide groove and a gear are further provided on the threshing rod body, the second rod body cooperates with the second slide groove, the length direction of the second slide groove is in the same direction as the length direction of the threshing rod body, a first rack is provided on the first rod body, a second rack is provided on the second rod body, the first rack is meshed with the gear, the second rack is meshed with the gear, and the meshing part of the first rack and the gear and the meshing part of the second rack and the gear are on opposite sides of each other with respect to the gear; When the threshing bar is in the initial state, the threshing bar is in the maximum length state; Under the action of centrifugal force, when the first rod body slides relative to the first slide groove in a direction away from the rotation axis of the turntable, the first rack drives the gear to move, and the gear drives the second rack to rotate, so that the second rod body slides relative to the second slide groove in a direction close to the rotation axis of the turntable, so that the length of the threshing rod becomes shorter.

7. A red kidney bean thresher as claimed in claim 6, characterized in that: The second rod body includes a second main rod body and a second auxiliary rod body. The second main rod body is connected to the second auxiliary rod body. The position of the second auxiliary rod body relative to the second main rod body is adjustable. The length of the second rod body can be adjusted by adjusting the position of the second auxiliary rod body relative to the second main rod body.

8. A red kidney bean thresher as claimed in claim 7, characterized in that: When the threshing bar is in the initial state, the minimum distance between the inner wall of the threshing bin and the end of the threshing bar away from the rotation axis of the rotating disk is d, 0<distance d<3 cm.

9. A red kidney bean thresher as claimed in claim 8, characterized in that: A plurality of cross bars are arranged on the turntable, and the cross bars are evenly distributed in the area of ​​the turntable close to the edge of the turntable.

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