Threshing device with length-adjustable uniform feeding threshing cylinder

Abstract

A uniform feeding threshing device with a length-adjustable threshing cylinder belongs to the technical field of agricultural machinery and comprises a frame, an outer shell, a uniform feeding mechanism and a telescopic threshing cylinder mechanism, the uniform feeding mechanism is mounted on the right upper portion of the outer shell, and the telescopic threshing cylinder mechanism is mounted in the outer shell; the uniform feeding mechanism achieves preliminary crushing and uniform directional conveying of materials through a connecting rod set, eagle claw-imitated threshing teeth, rhinoceros horn-imitated threshing teeth and a follow-up material distribution plate, blockage caused by excessive feeding at a time is prevented, the telescopic threshing roller mechanism observes the material condition in real time through a camera, the controller adjusts the length of a telescopic rod of a telescopic motor, and the feeding efficiency is improved. The length of the threshing cylinder is adjusted and controlled so as to adapt to materials with different feeding quantities, the threshing mechanism utilizes two kinds of threshing teeth of a rotary blade shape and a sheep-tooth-imitating threshing tooth to be matched for threshing, the rotary blade-shaped threshing tooth conveys the materials while crushing the threshed materials, and the sheep-tooth-imitating threshing tooth conducts efficient threshing on the materials.

Description

Technical Field

[0001] This invention pertains to agricultural machinery and mainly relates to a threshing device with an adjustable length of the uniformly fed threshing drum. Background Technology

[0002] Existing soybean threshing equipment suffers from uneven material feeding, easy blockage of the threshing drum near the feeding end, and inability to adjust the drum operating length according to the amount of material in the threshing area. This results in poor material crushing effect and material blockage when the feeding volume is large, which is detrimental to the continuity and integrity of soybean threshing. Summary of the Invention

[0003] This invention aims to provide a threshing device that achieves uniform material feeding, prevents clogging near the feeding end of the threshing drum, and allows adjustment of the drum's operating length based on the amount of material in the threshing area. It utilizes eagle-claw-shaped and rhinoceros-horn-shaped threshing teeth in conjunction with a uniform feeding mechanism to achieve initial threshing during the uniform conveying process. The ends of the biomimetic threshing tooth assembly form the brachistochrone, enabling rapid conveying of the material after initial threshing and solving the problem of slow feeding speed for large quantities of material. A follow-up distribution plate evenly feeds the material after initial threshing into the threshing drum, preventing clogging caused by excessive single feeding. Furthermore, the rotary tiller-shaped threshing teeth fixed to the threshing drum provide a certain degree of transport during secondary threshing, further addressing the clogging problem near the feeding end. The retractable threshing drum mechanism automatically adjusts its length according to the threshing situation and material quantity, meeting the threshing needs of different feeding amounts. The fern-shaped threshing teeth on the retractable threshing drum perform the final threshing, solving the problem of poor threshing effect due to excessive feeding.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A uniform feeding threshing drum length adjustable threshing device includes a frame, an outer shell, and a screen. A feeding mechanism is installed on the upper right part of the frame, and a threshing mechanism is installed inside. The outer shell is installed above the threshing mechanism and is fixedly connected to the frame. The screen is installed below the threshing mechanism and is fixedly connected to the frame.

[0006] The uniform feeding mechanism is characterized by a feeding ramp fixed at a certain angle to the horizontal plane at the feeding port on the upper part of the outer shell. Multiple first and second threshing teeth are sequentially fixed to both sides of the mounting plate from top to bottom along the feeding ramp. The first threshing teeth are modeled after eagle claw hooks, and the second threshing teeth are modeled after rhinoceros horns. The outer ends of the biomimetic threshing tooth group together form the brachistochrone. Two follower diverter plates are respectively hinged to shafts on both sides of the rear of the mounting plate. The left and right side components are centrally mirror-symmetrical. The mounting plate is fixedly installed inside the feeding ramp via a T-shaped link, a first link, a second link, and a fixed mounting plate. There are four feeding mechanism motion units in total. Two feeding mechanism motion units are respectively arranged from top to bottom on both sides of the feeding ramp. Each feeding mechanism motion unit includes two fixed supports, a first link, a T-shaped link, and a second link. The two fixed supports of each unit are fixedly mounted inside the feed inclined plate at relatively upper and lower positions, respectively. The connecting shaft is rotatably mounted on the fixed supports. The third pulley is fixedly mounted on the connecting shaft. One end of the first connecting rod is fixedly mounted on the connecting shaft, and the other end is fixedly mounted on the upper end of the T-shaped connecting rod. The upper, middle, and lower ends of the T-shaped connecting rod are respectively hinged to the first connecting rod, the mounting plate, and the second connecting rod. One end of the second connecting rod is hinged to the lower end of the T-shaped connecting rod, and the other end is hinged to the fixed support. There are two support rods, which are fixedly mounted on the fixed supports of the two feed mechanism motion units at the upper position. The second motor is fixedly connected to the support rods. The fourth and fifth pulleys are both fixedly mounted on the output shaft of the second motor. One end of the second belt is mounted on the third pulley, and the other end is mounted on the fourth pulley. One end of the third belt is mounted on the fifth pulley, and the other end is mounted on the sixth pulley.

[0007] The retractable threshing mechanism is characterized by a motor mounting bracket, a first battery fixedly mounted on the frame, a first motor fixedly mounted on the motor mounting bracket, the first battery and the first motor connected via a power cable, a second pulley fixedly mounted on the output shaft of the first motor, several connecting plates at the left end of the threshing drum power input shaft, the right end of the threshing drum power input shaft passing through the frame and rotatably mounted on the frame, the first pulley fixedly mounted on the right end of the threshing drum power input shaft, the first pulley and the second pulley connected via a first belt, several trapezoidal grooves on the left side of the fixed threshing drum, and the fixed threshing drum being fixedly connected to the threshing drum power input shaft via several connecting plates at the left end of the threshing drum power input shaft, and the fixed threshing drum having a certain bending angle. The teeth are circumferentially arrayed and fixed on the fixed threshing drum. The right end of the telescopic threshing drum is equipped with multiple trapezoidal sliders. The telescopic threshing drum is locked onto the trapezoidal groove through the multiple trapezoidal sliders, and then locked onto the fixed threshing drum to realize the transmission of circumferential rotational force. Multiple sets of telescopic threshing drum teeth are arrayed circumferentially on the outside of the telescopic threshing drum. The lower and upper ends of the spring are fixed on the telescopic threshing drum and the telescopic threshing drum teeth, respectively. The fixed frame is fixed inside the machine frame through its two side support rods. The telescopic motor is fixed on the fixed frame. The controller and the third battery are fixed on the telescopic motor. The telescopic shaft of the telescopic motor is rotatably installed on the left end of the telescopic threshing drum. The camera and the screen are fixed on the side and bottom inside the machine frame, respectively.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: The biomimetic threshing tooth assembly in the uniform feeding mechanism of the present invention forms the fastest descent line at its end, which can quickly convey the fed material during the initial threshing, solving the problem of slow material feeding speed. The follow-up diverting plate evenly conveys the material after the initial threshing to the working area of ​​the fixed threshing drum. The rotary tiller-shaped threshing teeth fixed on the threshing drum perform secondary threshing on the material. Due to the bending design of the threshing teeth, the material can be directionally thrown towards the tail of the drum, solving the problem of material easily clogging the feed inlet of the threshing drum. The telescopic threshing drum mechanism can automatically adjust the length of the threshing drum according to the threshing situation of the material, and work together with the fern-like threshing teeth to perform the final threshing of the material, solving the problem of poor threshing effect caused by excessive material feeding. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0010] Figure 1 This is a schematic diagram of a threshing device with an adjustable length of uniformly fed threshing drum.

[0011] Figure 2 Schematic diagram of a uniform feeding mechanism (with enlarged view of a portion).

[0012] Figure 3Schematic diagram of an adjustable-length threshing drum (with enlarged details).

[0013] Part numbers in the diagram: 1. Feeding inclined plate; 2. First threshing tooth; 3. Second threshing tooth; 4. Follow-up distribution plate; 5. Outer shell; 6. Fixed threshing drum tooth; 7. Fixed threshing drum; 8. First belt; 9. First pulley; 10. Threshing drum power input shaft; 11. First battery; 12. First motor; 13. Second pulley; 14. Motor mounting bracket; 15. Telescopic threshing drum threshing tooth; 16. Frame; 17. Screen; 18. Controller; 19. Mounting bracket; 20. Telescopic motor; 21. Telescopic threshing drum; 22. Mounting plate; 23. Second belt; 24. Third belt; 25. Second battery; 26. Second motor; 27. Spring; 28. Trapezoidal slider; 29. ​​Camera; 30. Trapezoidal groove; 31. Third battery; 32. Support rod; 33. Fixed support; 34. First connecting rod; 35. T-shaped connecting rod; 36. Second connecting rod; 37. Rotating shaft; 38. Third pulley; 39. Fourth pulley; 40. Fifth pulley; 41. Sixth pulley. Detailed Implementation

[0014] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] The present invention will be further described in detail below with reference to the embodiments.

[0016] like Figure 1-3 The following is a specific embodiment of the uniform feeding threshing drum length adjustable threshing device provided by the present invention:

[0017] A uniform feeding threshing drum length adjustable threshing device includes a frame 16, an outer shell 5, and a screen 17. The upper right part of the frame 16 is equipped with a feeding mechanism and the inside is equipped with a threshing mechanism. The outer shell 5 is installed above the threshing mechanism and is fixedly connected to the frame 16. The screen 17 is installed below the threshing mechanism and is fixedly connected to the frame 16.

[0018] The uniform feeding mechanism is characterized by a feeding inclined plate 1 fixed at an angle to the horizontal plane at the feeding port on the upper part of the outer shell 5. Multiple first threshing teeth 2 and second threshing teeth 3 are sequentially fixed to both sides of the mounting plate 22 from top to bottom along the feeding inclined plate 1. The first threshing teeth 2 are modeled after eagle claw hooks, and the second threshing teeth 3 are modeled after rhinoceros horns. The outer ends of the biomimetic threshing tooth group together form the brachistochrone. Two follower diverter plates 4 are respectively hinged to shafts on both sides of the tail of the mounting plate 22. The left and right side components are centrally mirror-symmetrical. The mounting plate 22 is installed inside the feeding inclined plate 1 via a T-shaped connecting rod 35, a first connecting rod 34, a second connecting rod 36, and fixed supports 33. There are four feeding mechanism motion units in total. Two feeding mechanism motion units are respectively arranged from top to bottom on both sides of the feeding inclined plate 1. Each feeding mechanism motion unit includes two fixed supports 33, one first connecting rod 34, one T-shaped connecting rod 35, and one second connecting rod 36. The two fixed supports 33 of each unit... The connecting shaft 37 is rotatably mounted on the fixed support 33, with the fixed components located relatively high and low inside the feed inclined plate 1. The third pulley 38 is fixed to the connecting shaft 37. One end of the first connecting rod 34 is fixed to the connecting shaft 37, and the other end is fixed to the upper end of the T-shaped connecting rod 35. The upper, middle, and lower ends of the T-shaped connecting rod 35 are respectively hinged to the first connecting rod 34, the mounting plate 22, and the second connecting rod 36. One end of the second connecting rod 36 is hinged to the lower end of the T-shaped connecting rod 35, and the other end is connected to the fixed support 33. The hinged support rod 32 has two parts, which are fixedly mounted on the fixed supports 33 of the two upper feeding mechanism motion units respectively. The second motor 26 is fixedly connected to the support rod 32. The fourth pulley 39 and the fifth pulley 40 are both fixedly mounted on the output shaft of the second motor 26. One end of the second belt 23 is mounted on the third pulley 38 and the other end is mounted on the fourth pulley 39. One end of the third belt 24 is mounted on the fifth pulley 40 and the other end is mounted on the sixth pulley 41.

[0019] The retractable threshing mechanism is characterized by a motor mounting bracket 14, a first battery 11 fixedly mounted on a frame 16, a first motor 12 fixedly mounted on the motor mounting bracket 14, the first battery 11 and the first motor 12 connected by a power cable, a second pulley 13 fixedly mounted on the output shaft of the first motor 12, several connecting plates on the left end of the threshing drum power input shaft 10, the right end of the threshing drum power input shaft 10 passing through the frame 16 and rotatably mounted on the frame 16, a first pulley 9 fixedly mounted on the right end of the threshing drum power input shaft 10, the first pulley 9 and the second pulley 13 connected by a first belt 8, several trapezoidal grooves 30 on the left side of the fixed threshing drum 7, the fixed threshing drum 7 being fixedly connected to the threshing drum power input shaft 10 via several connecting plates on the left end of the threshing drum power input shaft 10, and the fixed threshing drum teeth 6 with a certain bending angle along... The circumferential array is fixed on the fixed threshing drum 7. The right end of the telescopic threshing drum 21 is provided with multiple trapezoidal sliders 28. The telescopic threshing drum 21 is locked on the trapezoidal slide groove 30 through the multiple trapezoidal sliders 28, and then locked on the fixed threshing drum 7 to realize the transmission of circumferential rotational force. Multiple sets of telescopic threshing drum threshing teeth 15 are arranged circumferentially on the outside of the telescopic threshing drum 21. The lower end and upper end of the spring 27 are fixed on the telescopic threshing drum 21 and the telescopic threshing drum threshing teeth 15, respectively. The fixed frame 19 is fixed inside the frame 16 through its two side support rods. The telescopic motor 20 is fixed on the fixed frame 19. The controller 18 and the third battery 31 are fixed on the telescopic motor 20. The telescopic shaft of the telescopic motor 20 is rotatably installed on the left end of the telescopic threshing drum 21. The camera 29 and the screen 17 are fixed on the side and bottom inside the frame 16, respectively.

[0020] When the uniform feeding mechanism is operating, the second battery 25 supplies power to the second motor 26. The output shaft of the second motor 26 rotates and drives the fourth pulley 39 to rotate. The fourth pulley 39 drives the third pulley 38 to rotate. The third pulley 38 drives the rotating shaft 37 to rotate. The rotation of the rotating shaft 37 drives the first connecting rod 34 to rotate. Through the rod assembly composed of the first connecting rod 34, the T-shaped connecting rod 35, and the second connecting rod 36, the mounting plate 22 reciprocates towards the centerline of the feed inlet. The mounting plate 22 then drives the first threshing tooth 2... The second threshing tooth 3 and the follow-up distribution plate 4 reciprocate feeding motion. During feeding, the first threshing tooth 2 is shaped like an eagle claw hook, which can better hook the material at the upper end of the inlet and convey it downward. The second threshing tooth 3 is shaped like a rhinoceros horn, which simulates the collision effect of rhinoceros horns to perform preliminary threshing of the material. The outer ends of the two biomimetic threshing teeth form the fastest descent line, which enables the material to move to the lower end of the inlet inclined plate 1 at a relatively fast speed and fall on the follow-up distribution plate 4, so that it rotates around the shaft set at the tail of the mounting plate 22, so that the material enters the threshing zone evenly.

[0021] When the retractable threshing mechanism is in operation, the first battery 11 supplies power to the first motor 12. The output shaft of the first motor 12 rotates and drives the second pulley 13 to rotate. The second pulley 13 drives the first pulley 9 to rotate via the first belt 8. The first pulley 9 drives the power input shaft 10 of the threshing drum to rotate. The power input shaft 10 of the threshing drum drives the fixed threshing drum 7 to rotate. The fixed threshing drum 7 drives all the fixed threshing teeth 6 to rotate. The fixed threshing drum teeth 6 perform a second threshing of the material. At the same time, the fixed threshing drum 7 drives the trapezoidal slider 28 in the trapezoidal chute 30 to rotate. The trapezoidal slider 28 carries... The retractable threshing drum 21 rotates, driving all the retractable threshing drum threshing teeth 15 to rotate. The retractable threshing drum threshing teeth 15 perform a third threshing of the material. During the second and third threshing, the third battery 31 supplies power to the telescopic motor 20, controller 18, and camera 29. The camera 29 observes the material situation above the retractable threshing drum mechanism and wirelessly feeds back the observed situation to the controller 18. When there is too much material in the threshing drum or the threshing is incomplete, the controller 18 controls the telescopic motor 20 to retract the push rod. The telescopic motor 20 drives the retractable threshing drum... The retractable threshing drum 21 moves to the left, thus extending it. The retractable threshing drum 21 drives the trapezoidal slider 28 to slide along the left edge of the trapezoidal groove 30. Simultaneously, the retractable threshing drum 21 drives the retractable threshing drum threshing teeth 15 to move to the left until they disengage from the fixed threshing drum 7. The spring 27 then ejects the retractable threshing drum threshing teeth 15 and acts as a fixation mechanism, thereby extending the working area away from the drum and ensuring high-quality crushing in multi-material environments. When there is little material in the threshing drum or threshing is almost complete, the controller 18 controls the telescopic motor 20 to extend the push rod. The telescopic motor 20 drives... The retractable threshing drum 21 moves to the right, thus shortening it. The retractable threshing drum 21 drives the trapezoidal slider 28 to slide along the right edge of the trapezoidal groove 30. At the same time, the retractable threshing drum 21 drives the retractable threshing drum threshing teeth 15 to move to the right until they partially overlap with the fixed threshing drum 7. The spring 27 presses the retractable threshing drum threshing teeth 15 into the groove on the right edge of the retractable threshing drum 21 and then fixes it. The threshed material is separated through the screen 17, so that the length of the threshing drum can be automatically changed according to the threshing situation of the material while the threshing drum rotates, thereby improving the threshing quality of the material.

[0022] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform feeding threshing drum length adjustable threshing device, comprising a frame (16), an outer shell (5), and a screen (17), wherein a feeding mechanism is installed on the upper right part of the frame (16), and a threshing mechanism is installed inside the frame (16), the outer shell (5) is installed above the threshing mechanism and is fixedly connected to the frame (16), and the screen (17) is installed below the threshing mechanism and is fixedly connected to the frame (16).

2. The threshing device with adjustable length of uniform feeding threshing drum according to claim 1, characterized in that... The feed ramp (1) is fixed at a certain angle to the horizontal plane at the feed inlet on the upper part of the outer shell (5). Multiple first threshing teeth (2) and second threshing teeth (3) are fixed along the feed ramp (1) from top to bottom on both sides of the mounting plate (22). The first threshing teeth (2) are modeled after eagle claw hooks, and the second threshing teeth (3) are modeled after rhinoceros horns. The outer ends of the biomimetic threshing teeth group together form the fastest descent line. Two follow-up diverter plates (4) are respectively hinged to the shafts set on both sides of the tail of the mounting plate (22). The left and right side components are mirror-symmetrical. The mounting plate ( 22) The feeding mechanism is installed inside the feeding inclined plate (1) via a T-shaped link (35), a first link (34), a second link (36), and a fixing point (33). There are four feeding mechanism motion units in total. Two feeding mechanism motion units are provided on each side of the feeding inclined plate (1) from top to bottom. Each feeding mechanism motion unit includes two fixing supports (33), a first link (34), a T-shaped link (35), and a second link (36). The two fixing supports (33) of each unit are fixedly installed on the feeding inclined plate (1). The connecting shaft (37) is rotatably mounted on the fixed support (33) at relatively upper and lower internal positions. The third pulley (38) is fixed on the connecting shaft (37). One end of the first connecting rod (34) is fixed on the connecting shaft (37), and the other end is fixed on the upper end of the T-shaped connecting rod (35). The upper, middle, and lower ends of the T-shaped connecting rod (35) are respectively hinged to the first connecting rod (34), the mounting plate (22), and the second connecting rod (36). One end of the second connecting rod (36) is hinged to the lower end of the T-shaped connecting rod (35), and the other end is hinged to the fixed support (33). There are two support rods (32), which are fixedly mounted on the fixed supports (33) of the two upper feeding mechanism motion units respectively. The second motor (26) is fixedly connected to the support rod (32). The fourth pulley (39) and the fifth pulley (40) are both fixedly mounted on the output shaft of the second motor (26). One end of the second belt (23) is mounted on the third pulley (38) and the other end is mounted on the fourth pulley (39). One end of the third belt (24) is mounted on the fifth pulley (40) and the other end is mounted on the sixth pulley (41).

3. The threshing device with adjustable length of uniform feeding threshing drum according to claim 1, characterized in that... The motor mounting bracket (14) and the first battery (11) are fixedly mounted on the frame (16). The first motor (12) is fixedly mounted on the motor mounting bracket (14). The first battery (11) and the first motor (12) are connected by a power cable. The second pulley (13) is fixedly mounted on the output shaft of the first motor (12). Several connecting plates are provided on the left end of the threshing drum power input shaft (10). The right end of the threshing drum power input shaft (10) passes through the frame (16) and is rotatably mounted on the frame (16). 6) The first pulley (9) is fixedly mounted on the right end of the threshing drum power input shaft (10). The first pulley (9) and the second pulley (13) are connected by the first belt (8). Several trapezoidal grooves (30) are opened on the left side of the fixed threshing drum (7). The fixed threshing drum (7) is fixedly connected to the threshing drum power input shaft (10) through several connecting plates on the left end of the threshing drum power input shaft (10). The fixed threshing drum teeth (6) with a certain bending angle are fixedly mounted in a circumferential array. On the fixed threshing drum (7), the right end of the telescopic threshing drum (21) is provided with multiple trapezoidal sliders (28). The telescopic threshing drum (21) is clamped on the trapezoidal groove (30) by the multiple trapezoidal sliders (28), and then clamped on the fixed threshing drum (7) to realize the transmission of circumferential rotational force. The telescopic threshing drum (21) has multiple sets of telescopic threshing teeth (15) arranged circumferentially on its exterior. The lower and upper ends of the spring (27) are respectively fixed to the telescopic threshing drum (21). The telescopic threshing drum (21) and the telescopic threshing teeth (15) are fixed on the frame (16) by the support rods on both sides. The telescopic motor (20) is fixed on the frame (19). The controller (18) and the third battery (31) are fixed on the telescopic motor (20). The telescopic shaft of the telescopic motor (20) is rotatably installed on the left end of the telescopic threshing drum (21). The camera (29) and the screen (17) are fixed on the side and bottom of the frame (16) respectively.

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