A threshing cylinder and a longitudinal flow grain threshing vehicle with the threshing cylinder

Abstract

A threshing cylinder and a longitudinal flow grain thresher with the threshing cylinder, wherein the threshing cylinder comprises a cylinder body, a main shaft is rotatably connected at the center of the inner cavity of the cylinder body, one end of the main shaft is a motor shaft connecting end, and the other end of the main shaft is provided with a locking mechanism for keeping or releasing synchronous rotation with the cylinder body; the outer side of the outer circumferential surface of the cylinder body is provided with a rod member rotatable on the cross section of the cylinder body, the rod member has at least one first rubbing part for rubbing and beating grains when the cylinder body rotates, and the end of the first rubbing part away from the rotation center of the rod member is a first free end. The angle of the rod member on the threshing cylinder can be adjusted to control the size of the threshing gap, so as to adapt to the threshing operation of different types of grains; the thresher with the threshing cylinder can improve the threshing rate and reduce the grain breakage rate.

Description

Technical Field

[0001] This invention relates to the field of grain threshing technology, specifically to a threshing drum and a longitudinal axial flow grain threshing vehicle incorporating the threshing drum. Background Technology

[0002] A threshing machine is a harvesting machine that separates the grains from the stalks of crops, primarily grain crops. Different types of threshing machines are used depending on the crop. For example, a "rice threshing machine" is used for rice; a "corn threshing machine" is used for corn, and so on. The rice threshing machine, commonly known as a "rice threshing machine," is the most common type of rice threshing machinery. It requires the rice to be harvested first, and then this machine separates the rice grains from the stalks.

[0003] Threshing machines can be classified into three types according to the structural characteristics of their threshing components: traditional type, axial flow type, and fan impeller type. Axial flow threshing machines can be classified into horizontal axial flow and vertical axial flow according to the configuration of their drums. Horizontal axial flow can be further divided into transverse axial flow and longitudinal axial flow.

[0004] An axial flow thresher consists of a threshing drum and a concave plate. A toothed rod is fixed to the threshing drum, and the gap between the outermost end of the toothed rod and the concave plate is the threshing gap. If the threshing gap is too small, the toothed rod on the drum will severely impact the material, causing straw breakage, increasing the impurity content of the threshed material, and making it difficult to separate the threshed grains, thus increasing entrainment losses. An excessively small threshing gap or an increased feed rate can even cause drum blockage.

[0005] Threshing machines often suffer from low threshing efficiency and high breakage rate during operation. The threshing gap is one of the main operating parameters of a threshing machine, which can affect threshing performance to a certain extent. Generally, a specific threshing gap is formed by replacing concave plates of different sizes. However, due to the different types of crops being harvested, the suitable threshing gap varies greatly. A single threshing machine needs to carry multiple concave plates, which is also quite troublesome to disassemble and use.

[0006] To this end, we have researched and proposed a threshing drum and a longitudinal axial flow grain threshing vehicle equipped with the threshing drum. Summary of the Invention

[0007] The purpose of this invention is to provide a threshing drum and a longitudinal axial flow grain threshing vehicle equipped with the threshing drum, wherein the angle of the rods on the threshing drum is adjustable, thereby controlling the size of the threshing gap to adapt to the threshing operation of different types of grains; the threshing vehicle equipped with the threshing drum can improve the threshing efficiency and reduce the grain breakage rate.

[0008] The technical solution adopted in this invention is: a threshing drum, including a drum body, a main shaft rotatably connected at the center of the inner cavity of the drum body, one end of the main shaft being a motor shaft connection end, and a locking mechanism between the other end of the main shaft and the drum body to keep the two rotating synchronously or to release the synchronous rotation.

[0009] The outer circumferential surface of the cylinder is provided with a rod that can rotate on the cross-section of the cylinder. The rod has at least one first rubbing part that rubs the grain when the cylinder rotates. The end of the first rubbing part that is away from the rotation center of the rod is the first free end.

[0010] A first transmission mechanism is provided between the main shaft and the rod. After the cylinder and the main shaft are desynchronized, the main shaft drives the rod to rotate through the first transmission mechanism and adjusts the distance from the first free end to the center line of the main shaft.

[0011] As a preferred embodiment, the first transmission mechanism includes a main gear sleeve fixed on the main shaft, a fixed shaft fixed on the cylinder, a driven gear sleeve rotatably mounted on the fixed shaft that meshes with the main gear sleeve, and a rod connected to the driven gear sleeve.

[0012] As a preferred embodiment, the rod also has a second rubbing section, which forms an angle with the first rubbing section about the rotation center of the rod.

[0013] As a preferred embodiment, the cylinder is provided with a second transmission mechanism that drives the rod to rotate and switches the second rubbing part from the first rubbing part to the second rubbing part. The second transmission mechanism is in transmission cooperation with the main gear sleeve.

[0014] As a preferred embodiment, the second transmission mechanism includes a bearing fixed on the driven gear sleeve, a connecting shaft provided in the shaft hole of the bearing, one end of the connecting shaft being fixedly connected to the adjusting gear, and a fixed gear meshing with the adjusting gear being fixed on the fixed shaft;

[0015] The rod is fixedly connected to the other end of the connecting shaft.

[0016] As a preferred embodiment, the locking mechanism includes a guide rod fixed to the cylinder, a slidable bracket on the guide rod, a positioning keyway on the bracket, and a shaft key on the main shaft that matches the positioning keyway.

[0017] As a preferred embodiment, the cylinder includes a skeleton rod and spoke seats distributed and fixed along the axial direction of the skeleton rod;

[0018] The fixed shaft is fixedly connected to the spoke base.

[0019] A longitudinal axial flow grain threshing vehicle includes a threshing box and a threshing drum rotatably disposed inside the threshing box. A concave plate is provided inside the threshing box, and a threshing gap is formed between the concave plate and the threshing drum. The threshing drum is the threshing drum described above.

[0020] As a preferred embodiment, one end of the threshing box is provided with a feeding hopper that connects to the threshing gap, and the other end of the threshing box is provided with a threshing motor that connects to the threshing drum.

[0021] One end of the threshing box is hinged to the top of the threshing chamber, and the threshing chamber is equipped with an angle adjustment mechanism to adjust the tilt angle of the threshing box;

[0022] The bottom of the threshing chamber is equipped with wheels.

[0023] As a preferred embodiment, the top of the threshing chamber is provided with an opening corresponding to the concave plate, and the side is provided with a reversible hatch.

[0024] The side of the threshing bin is connected to a grain conveying mechanism via a telescopic mechanism, and the grain conveying mechanism is matched with the feeding hopper.

[0025] To address the shortcomings of existing technologies, this invention provides a threshing drum and a longitudinal axial flow grain threshing vehicle incorporating the threshing drum. The advantages of this invention are:

[0026] 1. The rods on the threshing drum can rotate, making the threshing drum variable in diameter. This allows for adjustment of the threshing gap without moving the concave plate, adapting to the threshing operations of different types of grains. The adjustment range of the threshing gap is continuous and easy to adjust.

[0027] 2. A first transmission mechanism is set on the threshing drum to drive the rod to rotate at a small angle, thereby adjusting the distance from the free end of the rubbing section to the center of rotation (the threshing gap changes synchronously).

[0028] 3. At least two different rubbing sections are provided on the rods of the threshing drum. The rotation of different rubbing sections can be switched through the second transmission mechanism without disassembling and replacing the rods. The replaceable design will greatly improve the applicability of the threshing drum to a variety of grains.

[0029] 4. The longitudinal application of the detachment drum to the longitudinal axial flow grain threshing machine has a compact structure and can be adapted to different types of grains, thereby improving the threshing rate and reducing the grain breakage rate. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the threshing drum in this invention.

[0032] Figure 2 This is a cross-sectional schematic diagram of the threshing drum of the present invention;

[0033] Figure 3 This is a schematic diagram of the transmission relationship between the main shaft and the rod of the present invention;

[0034] Figure 4 This is a planar schematic diagram of the rod in this invention;

[0035] Figure 5 This is an axial view of the rod in this invention;

[0036] Figure 6 This is a schematic diagram of the locking mechanism of the present invention;

[0037] Figure 7 This is a schematic diagram of the holder position when the cylinder and main shaft are in a synchronized state according to the present invention;

[0038] Figure 8 This is a schematic diagram of the position of the mounting bracket after the cylinder and main shaft are desynchronized.

[0039] Figure 9 This is a schematic diagram of the cylindrical body in this invention;

[0040] Figure 10 This is a schematic diagram of the axle side of the longitudinal axial flow grain threshing vehicle of the present invention;

[0041] Figure 11 This is a front view schematic diagram of the longitudinal axial flow grain threshing vehicle of the present invention;

[0042] Figure 12 This is a schematic diagram of the concave plate in this invention.

[0043] Reference numerals: 1. Cylinder, 2. Main shaft, 3. Rod, 301. First rubbing part, 302. First free end, 303. Second rubbing part, 4. Main gear sleeve, 5. Fixed shaft, 6. Driven gear sleeve, 7. Shaft seat, 8. Connecting shaft, 9. Adjusting gear, 10. Fixed gear, 11. Guide rod, 12. Card seat, 13. Positioning keyway, 14. Shaft key, 15. Frame rod, 16. Spoke seat, 17. Threshing box, 18. Concave plate, 19. Feed hopper, 20. Threshing motor, 21. Threshing bin, 22. Traveling wheel, 23. Door, 24. Telescopic mechanism, 25. Grain conveying mechanism, 26. Inclination adjustment mechanism. Detailed Implementation

[0044] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0045] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," etc., used in the specification and claims of this patent application do not express a limitation on quantity, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising," "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0046] To more clearly describe the specific structural components and usage of the threshing drum and the longitudinal axial flow grain threshing vehicle, in conjunction with the attached... Figure 1-12 This embodiment is described as follows:

[0047] like Figure 1 / Figure 2 / Figure 3 / Figure 4 As shown, a threshing drum includes a drum body 1. A main shaft 2 is rotatably connected to the center of the inner cavity of the drum body 1. One end of the main shaft 2 is a motor shaft connection end, which is fixedly connected to the output shaft of a threshing motor 20. The other end of the main shaft 2 is provided with a locking mechanism between it and the drum body 1 to keep them rotating synchronously or to release them. A rod 3 that can rotate on the cross-section of the drum body 1 is provided on the outer side of the outer circumference of the drum body 1. The rod 3 has at least one first rubbing part 301 that rubs the grain when the drum body 1 rotates. The end of the first rubbing part 301 away from the rotation center of the rod 3 is a first free end 302. After the main shaft 2 and the drum body 1 are locked, the threshing motor 20 can sequentially drive the main shaft 2, the drum body 1, and the rod 3 on the drum body 1 to rotate. During the rotation of the rod 3, the rubbing part rubs the grain in the threshing gap, causing its outer shell or husk to separate.

[0048] A first transmission mechanism is provided between the main shaft 2 and the rod 3. After the cylinder 1 and the main shaft 2 are desynchronized, the main shaft 2 drives the rod 3 to rotate through the first transmission mechanism, adjusting the distance from the first free end 302 to the center line of the main shaft 2. At the same time, the distance from the first free end 302 to the concave plate 18 changes. The rod 3 on the threshing drum can rotate, making the threshing drum variable in diameter. This allows the threshing gap to be adjusted without the concave plate 18 being stationary, adapting to the threshing operations of different types of grains. The adjustment range of the threshing gap is continuous and convenient.

[0049] In the above embodiments, the first transmission mechanism is as follows: Figure 2 or Figure 3As shown, it includes a main gear sleeve 4 fixed on the main shaft 2 and a fixed shaft 5 fixed on the cylinder 1. A driven gear sleeve 6 that meshes with the main gear sleeve 4 is rotatably mounted on the fixed shaft 5. The rod 3 is connected to the driven gear sleeve 6. The fixed shaft 5 provides an installation position for the driven gear sleeve 6. After the cylinder 1 and the main shaft 2 are unlocked, the cylinder 1 rotates relative to the main shaft 2. Under the transmission of the main gear sleeve 4 and the driven gear sleeve 6, the rod 3 rotates at a certain angle with the driven gear sleeve 6, thereby adjusting the distance from the free end of the threshing section to the center of rotation (and also adjusting the distance from the free end to the concave plate 18, thus changing the threshing gap).

[0050] To improve the applicability of the threshing rod 3 and the threshing drum to various grains, the threshing rod 3 is designed with a first rubbing section 301 and a second rubbing section 303. The first and second rubbing sections have different shapes, and the second rubbing section 303 forms an angle with the first rubbing section 301 about the rotation center of the threshing rod 3. The drum body 1 is equipped with a second transmission mechanism that drives the threshing rod 3 to rotate and switches between the second rubbing section 303 and the first rubbing section 301. The second transmission mechanism is engaged with the main gear sleeve 4. Different rubbing sections can be replaced for different grains, making it convenient to use. Figure 4 or Figure 5 The example provides a structure of a rod 3, in which the first rubbing part 301 is a nail-tooth type, and its rod-like structure is mainly used to beat the grains, and the second rubbing part 303 is a textured rod type, which is mainly used to knead the grains. The two different shapes of rubbing parts can be switched as needed.

[0051] It should also be noted that the shapes of the first rubbing part 301 and the second rubbing part 303 in the figure are only examples and can be other shapes. At the same time, other shapes of rubbing parts for rubbing grains can also be added to the rod 3.

[0052] In the above embodiments, the second transmission mechanism is as follows: Figure 2 or Figure 3 As shown, it includes a bearing 7 fixed on the driven gear sleeve 6, a connecting shaft 8 provided in the shaft hole of the bearing 7, one end of the connecting shaft 8 being fixedly connected to the adjusting gear 9, and a fixed gear 10 meshing with the adjusting gear 9 being fixedly fixed on the fixed shaft 5; the rod 3 is fixedly connected to the other end of the connecting shaft 8. The connecting shaft 8 is the carrier of the adjusting gear 9 and the rod 3. When the rod 3 rotates with the driven gear sleeve 6 (for adjusting the threshing gap), the rod 3 can rotate about the center of the connecting shaft 8 through the transmission of the adjusting gear 9 and the fixed gear 10. The small-angle rotation of the rod 3 can adjust the threshing gap, and the large-angle rotation can also realize the switching between the first rubbing section 301 and the second rubbing section 303.

[0053] See Figure 6The specific locking mechanism includes a guide rod 11 fixed to the cylinder 1, a retainer 12 slidably mounted on the guide rod 11, a positioning keyway 13 on the retainer 12, and a shaft key 14 on the main shaft 2 that matches the positioning keyway 13. The locking mechanism has two states: one is the locked state, such as... Figure 8 As shown, the shaft key 14 is engaged in the positioning keyway 13, connecting the cylinder 1 and the main shaft 2, which rotate synchronously; the second is the locked-out state, such as... Figure 7 As shown, at this time, the shaft key 14 is completely separated from the positioning keyway 13, the main gear sleeve 4 and the driven gear sleeve 6 can rotate relative to each other, and the cylinder 1 does not rotate when the main shaft 2 rotates.

[0054] See Figure 9 The cylinder 1 may specifically include a skeleton rod 15 and a spoke seat 16 that is distributed and fixed along the axial direction of the skeleton rod 15, and the fixed shaft 5 is fixedly connected to the spoke seat 16.

[0055] The present invention also provides a longitudinal axial flow grain threshing vehicle, including a threshing box 17 and a threshing drum rotatably disposed within the threshing box 17. A concave plate 18 is provided within the threshing box 17, and a threshing gap exists between the concave plate 18 and the threshing drum. The threshing drum is the one described above and will not be repeated here. The position of the concave plate 18 remains unchanged, and the threshing gap can be adjusted by using a variable-diameter threshing drum.

[0056] For details, please refer to Figure 10 or Figure 11 The threshing box 17 has a feeding hopper 19 at one end that connects to the threshing gap, and a threshing motor 20 connected to the threshing drum at the other end. One end of the threshing box 17 is hinged to the top of the threshing chamber 21 via a hinge. The threshing chamber 21 is equipped with an angle adjustment mechanism 26 for adjusting the tilt angle of the threshing box 17, and wheels 22 are provided at the bottom of the threshing chamber 21. The angle adjustment mechanism 26 is used to adjust the tilt angle of the threshing box 17, and the tilt angle of the threshing gap also changes accordingly. The angle adjustment mechanism 26 can be a hydraulic rod. When installed, one end of the hydraulic rod is rotatably connected to the threshing chamber 21, and the other end is rotatably connected to the threshing box 17. When the hydraulic rod extends or retracts, it drives the threshing box 17 to rotate around the hinge as the center line.

[0057] The top of the threshing chamber 21 has an opening corresponding to the concave plate 18, and the side has a flip-up door 23. The grain separated from the concave plate 18 falls vertically into the threshing chamber 21, and the collected grain can be taken out through the door 23. The side of the threshing chamber 21 is connected to a grain conveying mechanism 25 through a telescopic mechanism 24. The grain conveying mechanism 25 is correspondingly matched with the feeding hopper 19. The grain conveying mechanism 25 can be a belt conveyor. The belt conveyor sends the grain to be threshed into the feeding hopper 19. After entering the threshing gap through the feeding hopper, it is rubbed by the rotating rod 3 to separate the husk, rod and skin.

[0058] For a comprehensive understanding, the following is an overview of the invention of the threshing drum and the working process and state of the longitudinal axial flow grain threshing vehicle equipped with the threshing drum:

[0059] During the use of the longitudinal axial flow grain threshing car, the grain conveying mechanism 25 slides out and separates from the threshing chamber 21. The grain to be threshed passes through the grain conveying mechanism 25 and the feeding hopper 19 in sequence and enters the threshing gap between the threshing drum and the concave plate 18. After the drum body 1 and the main shaft 2 are locked, the threshing motor 20 is powered on and drives the drum body 1 to rotate through the main shaft 2. The rod 3 rubs and beats the grain in the threshing gap as the drum body 1 rotates. After separation, the grain enters the threshing chamber 21 through the gap of the concave plate 18.

[0060] When the threshing gap needs to be adjusted, a first transmission component is required. First, stop the machine, then pull the locking mechanism to separate the cylinder 1 and the main shaft 2. The main shaft 2 remains stationary. Rotate the cylinder 1 to make the driven gear sleeve 6 rotate outside the main gear sleeve 4. The rod 3 rotates along the center line of the driven gear sleeve 6 with the driven gear sleeve 6, forming an angle with the radial line of the cylinder 1. The greater the inclination, the greater the distance from the first free end 302 to the concave plate 18, that is, the larger the threshing gap; conversely, reduce the inclination to reduce the threshing gap. After adjustment, lock the cylinder 1 and the main shaft 2 again.

[0061] The rod 3 has at least two rubbing parts and is equipped with a second transmission component. Based on the above-mentioned state of adjusting the threshing gap, the cylinder 1 continues to rotate. Since the fixed gear 10 is stationary relative to the cylinder 1, the rod 3 is fixedly connected to the connecting shaft 8. As the rod 3 rotates with the driven gear sleeve 6, the adjusting gear 9 at the end of the connecting shaft 8 meshes and rotates along the fixed gear 10, thereby causing the rod 3 to rotate about the center of the connecting shaft 8 as the axis. When rotating at a small angle, the rod 3 is inclined relative to the radial line of the cylinder 1, and the distance from the first free end 302 to the concave plate 18 changes (adjustment of the threshing gap).

[0062] When the adjusting rod 3 is rotated to a larger angle, the first rubbing part 301 is brought closer to the cylinder 1, while the second rubbing part 303 is exposed to the outside. After locking the cylinder 1, the second rubbing part 303 can be used to rub the grain. This process completes the switching between different rubbing parts.

[0063] The parts not described in detail in this embodiment are existing technologies.

[0064] It should be noted that although the present invention has been described through the above embodiments, the present invention may have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A threshing cylinder, characterized in that: The application relates to a threshing cylinder, which comprises a cylinder (1), a main shaft (2) rotatably connected at the center of the inner cavity of the cylinder (1), a motor shaft connecting end at one end of the main shaft (2), and a locking mechanism arranged between the other end of the main shaft (2) and the cylinder (1) to keep or release synchronous rotation of the two; A rod member (3) is arranged on the outer side of the outer circumferential surface of the cylinder (1) and can rotate on the cross section of the cylinder (1), the rod member (3) has at least a first rubbing part (301) for rubbing grains when the cylinder (1) rotates, and the first rubbing part (301) has a first free end (302) at the end far from the rotation center of the rod member (3); the rod member (3) further has a second rubbing part (303) which forms an angle with the first rubbing part (301) with the rotation center of the rod member (3) as the axis; A first transmission mechanism is arranged between the main shaft (2) and the rod member (3), after the cylinder (1) and the main shaft (2) release synchronous rotation, the main shaft (2) drives the rod member (3) to rotate through the first transmission mechanism, and the distance between the first free end (302) and the center line of the main shaft (2) is adjusted; The first transmission mechanism comprises a main gear sleeve (4) fixed on the main shaft (2), a fixed shaft (5) fixed on the cylinder (1), a driven gear sleeve (6) rotatably arranged on the fixed shaft (5) and engaged with the main gear sleeve (4), and the rod member (3) is connected with the driven gear sleeve (6); A second transmission mechanism is arranged on the cylinder (1) to drive the rod member (3) to rotate and switch the rotation of the second rubbing part (303) and the first rubbing part (301), the second transmission mechanism is in transmission cooperation with the main gear sleeve (4); the second transmission mechanism comprises an axle seat (7) fixed on the driven gear sleeve (6), a connecting shaft (8) arranged in the shaft hole of the axle seat (7), one end of the connecting shaft (8) is fixedly connected with an adjusting gear (9), and the fixed shaft (5) is further fixedly provided with a fixed gear (10) engaged with the adjusting gear (9); The rod member (3) is fixedly connected with the other end of the connecting shaft (8).

2. A cylinder according to claim 1 wherein: The locking mechanism comprises a guide rod (11) fixed on the cylinder (1), a clamping seat (12) slidably arranged on the guide rod (11), a positioning key groove (13) arranged on the clamping seat (12), and an axle key (14) arranged on the main shaft (2) and matched with the positioning key groove (13).

3. A cylinder according to claim 1 wherein: The cylinder (1) comprises a framework rod (15) and a spoke seat (16) distributed along the axial direction of the framework rod (15) and fixed; The fixed shaft (5) is fixedly connected with the spoke seat (16).

4. A longitudinal axis grain thresher comprising a threshing box (17), a threshing cylinder (16) rotatably arranged in the threshing box (17), a concave (18) arranged in the threshing box (17), and a threshing gap between the concave (18) and the threshing cylinder (16), characterized in that: The threshing cylinder is the threshing cylinder in any one of claims 1 to 3.

5. A longitudinal axis grain cart according to claim 4, wherein: One end of the threshing box (17) is provided with a feeding hopper (19) communicated with a threshing gap, and the other end of the threshing box (17) is provided with a threshing motor (20) connected with the threshing cylinder; One end of the threshing box (17) is hingedly connected with the top of a threshing bin (21), and the threshing bin (21) is provided with an inclination angle adjusting mechanism (26) for adjusting the inclination angle of the threshing box (17); The bottom of the threshing bin (21) is provided with a walking wheel (22).

6. A longitudinal axis grain cart according to claim 5, wherein: The top of the threshing bin (21) is provided with an opening corresponding to the concave plate (18), and the side surface is provided with a turnable hatch (23). The side of the threshing bin (21) is connected with a grain conveying mechanism (25) through an extension mechanism (24), and the grain conveying mechanism (25) is correspondingly matched with the feeding hopper (19).

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