Inclined threshing machine

Abstract

The utility model provides an inclined type threshing machine which comprises a threshing cover, a driving motor, a threshing roller and a threshing frame fence, the threshing cover is a shell of the threshing machine and forms a threshing cavity, a feeding port is formed above the threshing cover, tobacco leaves enter the threshing cavity through the feeding port, a discharging port is formed below the threshing cover, and the driving motor drives the threshing roller to rotate. The fished tobacco leaves enter the next process through a discharge port; a fixed cutter is fixedly installed in the threshing cover, a plurality of sets of movable cutters are installed on the threshing roller, the movable cutters and the fixed cutter move mutually, tobacco leaves are torn to enable stems and leaves to be separated, and the whole structure of the threshing machine is arranged in an inclined mode and gradually expands to be in a conical shape from top to bottom. The movable cutter of the threshing roller, the fixed cutter of the threshing cover and the frame bar work cooperatively, tobacco leaves are torn and torn down from tobacco stems, stem and leaf separation is achieved, the threshing machine is simple in operation process and high in stem and leaf separation efficiency, the separated tobacco leaf structure meets the cut tobacco making standard, and tobacco leaf loss is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing equipment technical field, concretely relates to a threshing machine for threshing and redrying production. BACKGROUND

[0002] The threshing machine is important equipment for threshing and redrying, and its function is to separate tobacco stems and leaves by tearing and threshing when the moisture content of the tobacco leaves is about 18% to 20%, and the structure of the tobacco leaves directly affects the filling capacity and rolling effect of the tobacco, and is the basis for stable silk production quality.

[0003] The existing threshing machines include vertical threshing machines and horizontal threshing machines. The vertical threshing machine has a simple threshing and wind separation process, good leaf structure quality, and small loss, but the stem and leaf separation effect is insufficient, and the vertical threshing machine has been eliminated. At present, the threshing machines used for threshing and redrying are almost horizontal threshing machines. The horizontal threshing machine has good stem and leaf separation effect, but the structure of the tobacco leaves after tearing and threshing is severely damaged, and there are problems of poor leaf structure quality and large tobacco loss. The horizontal threshing machine has high requirements for the uniformity of the distribution of the tobacco leaves on the left, middle and right of the feeding belt, and needs to be equipped with a special feeder for uniform feeding, which complicates the operation process. And if the uniform distribution is not performed, excessive beating and repeated processing of the material will occur, resulting in poor uniformity and stability of the leaves. Therefore, it is necessary to improve the existing technology. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the utility model provides an inclined threshing machine, which arranges the overall structure of the threshing machine in an inclined manner, and the overall structure gradually expands and changes into a conical shape from top to bottom. The driving motor drives the threshing roller, and the moving knife of the threshing roller, the fixed knife of the threshing cover and the frame bar work together to tear and thresh the tobacco leaves, separate the tobacco stems and leaves, greatly simplify the threshing and wind separation process design of the threshing and redrying, do not need to be equipped with special complex distribution equipment according to the horizontal threshing machine, solve the problems of complex process layout of the existing threshing machine, and difficulty in uniform flow distribution. And the variable diameter design can reduce the crushing of the leaves during the threshing process, improve the proportion of high-quality tobacco leaves, and reduce equipment investment and energy consumption.

[0005] Specifically, the utility model provides a kind of inclined threshing machine, including threshing cover 2, driving motor 5, threshing roller 3, threshing frame fence 4.Threshing cover 2 is the shell of threshing machine, forms threshing chamber, appearance is an inclined conical hollow structure, threshing cover 2 upper portion is provided with inlet 1, tobacco enters threshing chamber by inlet 1, threshing cover 2 lower portion is provided with discharge port 6, after being beaten, tobacco is entered next process by discharge port 6;Fixedly installed fixed knife 7 in threshing cover 2 inside, threshing roller 3 and threshing frame fence 4 are arranged in the threshing chamber of threshing cover 2, and multiple groups of moving knife 8 are installed on threshing roller 3, and are moved with fixed knife 7, for tearing tobacco to make stem and leaf separation, and threshing cover 2, threshing roller 3, threshing frame fence 4 are arranged longitudinally inclined, so that tobacco moves naturally downward after entering the threshing chamber, to prevent the occurrence of material blocking in the threshing machine;The inner diameter of threshing roller 3 is tapered, gradually expanding from the upper part to the lower part, and the threshing cover 2 and the threshing frame fence 4 are kept synchronous in diameter with the threshing roller 3, the threshing roller generates a running linear velocity from low to high from top to bottom, and the leaf tearing strength gradually increases from top to bottom, the inclined design and the variable diameter design protect the leaf structure during threshing and reduce the leaf crushing.

[0006] Further, the threshing cover 2, the threshing roller 3 and the threshing frame fence 4 are arranged longitudinally inclined at an angle of 45-60°.

[0007] Further, the specific diameter size of the threshing roller 3 is designed according to the tobacco flow, the threshing cover 2 and the threshing frame fence 4 are kept synchronous in diameter with the threshing roller 3, the diameter of the threshing frame fence 4 is 30-50mm larger than that of the threshing roller 3, and the diameter of the threshing cover 2 is 200-300mm larger than that of the threshing frame fence 4.

[0008] Further, the threshing cover 2 is divided into an upper half cover 9 and a lower half cover 10, 3-4 groups of fixed knives 7 are fixedly installed in the upper half cover 9, the fixed knives 7 are semicircular knives with an inner arc being an Archimedes spiral, and the concave side is opposite to the rotating direction of the threshing roller 3.

[0009] Further, multiple groups of moving knives 8 are installed on the threshing roller 3 in a spiral distribution, the moving knives 8 are installed on the threshing roller 3 through a lock nut and a hollow bolt, the moving knives 8 are semicircular knives with an inner arc being an Archimedes spiral, and the concave side is consistent with the rotating direction of the threshing roller 3, which reduces the impact and crushing of the knives on the tobacco during the rotating and tearing process.

[0010] Further, the vertical spacing between the fixed knives 7 gradually decreases from top to bottom, the vertical spacing of the fixed knives 7 is between 200mm and 100mm, and the specific vertical spacing is determined according to the process layout level of the threshing machine.

[0011] Further, the vertical spacing of the moving knives 8 on the threshing roller gradually decreases from top to bottom, the gradual change rule conforms to the Archimedes spiral vertical spacing rule, and the moving knives 8 are staggered with the fixed knives 7, the vertical spacing of the moving knives 8 is between 200mm and 100mm, and the moving knives 8 and the fixed knives 7 are avoided from colliding during the rotating and threshing.

[0012] Further, the beating frame 4 is uniformly arranged with multiple diamond-shaped or square-shaped openings. The opening shape and size are determined according to the corresponding existing horizontal beating stage, and the opening shape and size are determined according to the beating stage. The openings are detachably mounted between the lower half cover 10 and the beating roller 3, facilitating replacement. The torn and beaten tobacco leaves fall into the lower half cover 10 through the openings of the frame 4. The present patent does not make special provisions for the opening shape and size of the frame.

[0013] Further, the bottom of the beating roller 3 is connected with the driving motor 5, the driving motor 5 drives the beating roller 3 to rotate, and the tobacco leaves are torn and beaten. The motor can be directly coaxially driven with the inclined beating roller or chain driven. In order to ensure the safe operation of the equipment, the motor can be directly driven with the inclined beating roller and fixed by a hollow connecting pin. At least one section of hollow chain is used for chain driving. The maximum breaking torque of the hollow connecting pin or hollow chain needs to be determined by test.

[0014] Further, the driving motor 5 is designed according to the existing horizontal beating machine.

[0015] Working principle: when the inclined beating machine is working, the driving motor drives the beating roller 3 to rotate, the tobacco leaves enter the beating machine through the feeding port, and due to the overall longitudinal inclination of the beating cover, the beating roller and the beating frame, the tobacco leaves naturally slide down under the action of gravity, smoothly enter the beating area, the movable cutter 8 installed on the beating roller 3 rotates with the beating roller 3, and the fixed cutter 7 inside the beating cover is installed and moves with each other, providing impact force, the tobacco leaves and the frame generate friction force, the passing tobacco leaves are torn, the leaves and the broken tobacco stems are separated, and the torn leaves and the broken tobacco stems are separated. Part of the stems will fall into the lower half cover of the beating cover through the frame, and slide down to the discharge port 6; the tobacco leaves continue to rotate and slide down. During the movement of the tobacco leaves 11 from top to bottom, the leaves are continuously torn away, and the remaining tobacco leaves become smaller, which makes it more difficult to separate the stems. Therefore, the beating machine adopts variable diameter design, so that the linear speed of the beating roller increases from top to bottom, and the tearing strength of the beating machine increases from top to bottom, so as to avoid the insufficient tearing strength of the lower part of the beating machine, which leads to poor effect. At the same time, the beating cutter adopts the semi-arc shape of Archimedes spiral line instead of regular circular arc shape, the combination of rotation and downward movement continues, the tobacco leaves continue to be torn and pulled by the fixed cutter and the movable cutter, until they fall into the bottom discharge port, and the separated leaves and tobacco stems enter the next process for further processing, such as air separation, screening, etc.

[0016] When the straight beating blade is at a rotation speed of 300-7000 revolutions per minute, most of the tobacco leaves on the beating blade will be thrown away due to inertia, and the selective beating function of the beating blade on large tobacco leaves cannot be achieved. When the rotation speed of the arc beating blade is high, about 50% of the tobacco leaves are thrown out, and when the rotation speed is high or the inclination angle of the beating blade is adjusted, the tobacco leaves will be concentrated and accumulated at a certain position, which affects the quality of the beaten tobacco leaves. The semi-arc beating blade similar to the Archimedes spiral line can uniformly distribute the tobacco leaves and does not cause position movement, and is better for the quality of the beaten tobacco leaves. It should be particularly noted that the curvature of the beating blade needs to change accordingly in different rotation speed ranges, and the curvature of the beating blade in the later stage of the beating machine needs to change more when the rotation speed is high.

[0017] Beneficial effects:

[0018] 1. The beating roller, beating cover and beating frame of the utility model adopt an inclined layout, and since the beating roller is also designed with a variable diameter from top to bottom, the linear speed of the beating roller from top to bottom is from low to high, the tearing strength of the beating is from low to high, the structure of the leaf blade is protected as much as possible, the crushing is reduced, and the quality of the leaf blade and the length of the tobacco stem are improved.

[0019] 2. When the beating roller rotates, the concave side of the moving cutter on the beating roller is consistent with the rotation direction of the beating roller 3, while the concave side of the fixed cutter on the beating cover is opposite to the rotation direction of the beating roller 3, which can reduce the effect of the tangential force, prevent the tangential force from throwing the tobacco leaves out during the beating process, and make the tobacco leaves stay more in the waist part of the beating blade and have a relatively low linear speed, so that the tearing effect is large during the interlacing process of the fixed cutter, the retearing is light and the beating is light, and thus the crushing during the beating is reduced.

[0020] 3. The beating roller, beating cover and beating frame of the inclined beating machine adopt an inclined layout, and can slide down more smoothly under the action of gravity, and the natural sliding trend is helpful to the full contact between the tobacco leaves and the beating roller and the frame, so that the separation efficiency of the tobacco leaves and the tobacco stem is improved.

[0021] 4. The inclination angle can effectively prevent the accumulation of materials during the beating process, and the inclined design makes the materials naturally move downward during the beating process, reduces the accumulation of materials, and ensures the continuity and stability of the beating process.

[0022] 5. The inner diameter of the beating roller of the inclined beating machine gradually expands from the upper part to the lower part to form a tapered structure, and this design cooperates with the inclined beating cover and beating frame, so that the space in which the leaf blade is located gradually increases during the beating process, the extrusion force on the leaf blade decreases with the increase of the space, and thus the risk of leaf blade crushing is reduced and the leaf blade loss rate is reduced.

[0023] 6. The inlet of the inclined leaf threshing machine is located at the top and the outlet at the bottom, allowing tobacco leaves to enter and exit more smoothly. The flow rate has an adaptive adjustment function, which solves the problems of uniform distribution of tobacco leaves on the left, center and right sides of the feeding belt of the horizontal leaf threshing machine and the complex feeding system of the horizontal leaf threshing machine. This design makes it easier for operators to feed and collect the tobacco leaves after threshing, and improves work efficiency.

[0024] 7. Because the leaf-beating roller adopts a variable diameter design from top to bottom, the leaf-beating and tearing intensity increases from low to high, which protects the leaf structure as much as possible, reduces breakage, and improves leaf quality and tobacco stem length.

[0025] 8. The leaf-beating cover and leaf-beating frame are synchronized with the leaf-beating roller in terms of diameter change. That is, their size is adjusted accordingly as the diameter of the leaf-beating roller changes. This synchronized diameter change design ensures that the tobacco leaves and stems are always in the best separation state throughout the entire leaf-beating process.

[0026] 9. Traditional horizontal leaf-cutting machines only have two sets of fixed blades in the leaf-cutting cover. Due to the change in the feeding method, the inclined leaf-cutting machine can add 1-2 sets of fixed blades to the upper cover, thereby improving the leaf-tearing efficiency of the single-stage leaf-cutting machine. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an inclined leaf trimmer;

[0028] Figure 2 This is a front view of an inclined leaf trimmer;

[0029] Figure 3 This is a front sectional view of an inclined leaf-cutting machine;

[0030] Figure 4 This is a schematic diagram of the blade cover structure;

[0031] Figure 5 This is a schematic diagram of the fixed-blade structure;

[0032] Figure 6 This is a magnified view of a section of the leaf frame;

[0033] Figure 7 This is a schematic diagram of the internal structure of an inclined leaf-cutting machine;

[0034] Figure 8 Diagram showing the operating status of an inclined leaf trimmer;

[0035] Figure 9 This is a schematic diagram of the layout of the tilting leaf-beating machine of this utility model in the leaf-beating air distribution.

[0036] Figure label:

[0037] 1 - feed inlet, 2 - threshing cover, 3 - threshing roller, 4 - threshing frame, 5 - drive motor, 6 - discharge outlet, 7 - fixed knife, 8 - moving knife, 9 - upper half cover, 10 - lower half cover, 11 - tobacco leaf. DETAILED DESCRIPTION

[0038] The technical solutions will be described in detail below with reference to the drawings in the embodiments of the utility model.

[0039] Embodiment 1

[0040] The flow rate of the inclined threshing machine is designed to be 1200 kg / h.

[0041] As shown in the drawings, Figures 1-2 the embodiment provides an inclined threshing machine, which is composed of a feed inlet 1, a threshing cover 2, a threshing roller 3, a threshing frame 4, a drive motor 5, a discharge outlet 6, a fixed knife 7, a moving knife 8, an upper half cover 9, and a lower half cover 10.

[0042] The threshing cover 2 is composed of the upper half cover 9 and the lower half cover 10. The upper half cover has an upper diameter of 1000 mm and a lower diameter of 1700 mm, and serves as the shell of the threshing machine to form a threshing chamber. The appearance is a longitudinally inclined 60° conical hollow structure. The upper half cover 9 is made of a steel plate with a thickness of 6 mm, and the surface is treated to be blue or made of a high-strength metal material such as stainless steel to avoid oxidation and rust during use. The threshing cover 2 is provided with the feed inlet 1 above, and the tobacco leaf 11 enters the threshing machine through the feed inlet 1. The threshing cover 2 is provided with the discharge outlet 6 below, and the threshed tobacco leaf 11 enters the next process through the discharge outlet 6. Three rows of fixed knives 7 are welded and installed in the upper half cover 9 in the axial direction. The fixed knives 7 have a length of 350 mm, and the vertical spacing gradually changes from top to bottom. The maximum vertical spacing at the upper part is 150 mm, and the minimum vertical spacing at the lower part is 120 mm. The fixed knives 7 are semicircular in shape, and the concave side is opposite to the rotation direction of the threshing roller 3. During the threshing process, the fixed knives 7 and the rotating threshing roller 3 together produce a tearing effect. The lower half cover is made of a stainless steel material with a thickness of 2.0 mm, and is elastically hinged and fixed. It can be opened downward through the side elastic hinge for easy inspection and maintenance. The fixed frame is made of a steel structure with a thickness of 15 mm, and the surface is treated to be blue.

[0043] As shown in the drawings, Figure 4 the inclination of the threshing roller 3 is the same as that of the threshing cover 2. A plurality of moving knives 8 are uniformly distributed on the threshing roller 3 in a spiral manner. The moving knives 8 are bolted to the threshing roller 3. The moving knives 8 have a length of 350 mm, and the vertical spacing is designed to gradually change. The moving knives 8 correspond to the fixed knives 7 of the threshing cover 2 in a staggered manner, and the vertical spacing is equal to that of the adjacent fixed knives 7. Figure 5As shown, the moving knife 8 is a semi-circular knife with an inner arc of Archimedes spiral, the concave side is consistent with the rotation direction of the threshing roller 3, and the moving knife 8 and the fixed knife 7 are interlaced to help large tobacco leaves concentrate to the waist of the fixed knife 7 and the moving knife 8, generate tearing effect, increase the tearing effect in the separation of stems and leaves, and reduce the impact of the knife on the tobacco leaves.

[0044] As shown in Figure 6 The threshing frame 4 is a multi-hole semi-conical hollow structure, installed in the lower part of the threshing cover 2, the inside is the inclined threshing roller 3, and the outside is the inclined lower half cover 10 of the threshing cover 2. The inclination of the threshing frame 4 is the same as that of the threshing cover 2, and it is a detachable structure. The diameter of the threshing frame 4 is synchronized with the lower half cover 10, the upper diameter is 1000mm, and the lower diameter is 1700mm. The upper part of the threshing frame 4 is consistent with the existing horizontal threshing machine frame, and a plurality of rhombic or square openings are uniformly distributed. The shape and size of the opening are determined according to the existing horizontal threshing level, and the threshing frame 4 is designed to be detachable and replaceable. The threshed tobacco leaves 11 fall into the lower half cover 10 through the openings of the frame 4.

[0045] As shown in Figure 7 The driving motor 5 is designed according to the existing horizontal threshing machine, adopts frequency conversion driving, and the rotating speed is controllable in the range of 100-200 revolutions per minute. The bottom of the threshing roller 3 is fixedly connected with the hollow connecting pin of the driving motor 5, and chain driving is adopted. At least one section of hollow chain is adopted. The maximum breaking torque of the hollow connecting pin or the hollow chain needs to be determined through test. The driving motor 5 drives the threshing roller 3 to rotate, and the tobacco leaves 11 are torn and threshed.

[0046] As shown in Figure 8 In use, the tobacco leaves 11 enter the threshing machine through the feed inlet 1. Due to the overall longitudinal inclination of 60° of the threshing machine, the tobacco leaves 11 naturally slide downward under the action of gravity, smoothly enter the threshing chamber, and the driving motor 5 drives the threshing roller 3 to rotate. The moving knife 8 installed on the threshing roller 3 rotates with the threshing roller 3, and the fixed knife 7 installed inside the threshing cover 3 moves interlacedly, providing impact force. The tobacco leaves 11 generate friction with the threshing frame 4, and the passing tobacco leaves 11 are torn and pulled. The leaves and stems are separated. The torn leaves and the broken stems will fall into the lower half cover 10 of the threshing cover 2 through the threshing frame 4, and slide down the lower half cover 10 to the discharge outlet 6. The unseparated tobacco leaves 11 continue to rotate and slide downward. The variable diameter design of the threshing machine increases the linear velocity of the threshing roller 3 from top to bottom, and the threshing and tearing strength gradually increases from top to bottom. The tobacco leaves 11 rotate around the axis of the threshing roller 3 at a constant angular velocity, and move downward at a non-constant linear velocity. The combination of rotation and downward movement continues, and the tobacco leaves 11 continue to be torn and pulled by the fixed knife 7 and the moving knife 8, until they fall into the bottom discharge outlet 11. The separated leaves and stems enter the next process for further processing, such as air separation, screening, etc.

[0047] Example 2:

[0048] The technical scheme of the inclined threshing machine is as follows:

[0049] Step 1, according to Figure 8 , design an inclined threshing machine.

[0050] Step 2: The inclined threshing cover 2 is a conical hollow structure installed at an inclination of 45-60°, and is horizontally divided into an upper half cover 9 and a lower half cover 10 along the axial direction. The upper half cover 9 is made of high-strength metal materials such as thick steel or stainless steel, and three rows of threshing knives (fixed knives 7) are distributed inside the upper half cover 9 along the axial direction and are fixedly installed. The lower half cover 10 is made of thin stainless steel material, and can be opened downward through the side hinge for easy maintenance. The size of the inclined threshing cover 2 is designed according to the size of the frame, which is 200-300mm larger than the diameter of the threshing frame 4. Preferably, a vibration motor can be added to the lower frame to facilitate rapid discharge.

[0051] Step 2.1: The length of the threshing knife of the inclined threshing cover 2 is 300-400mm, and the vertical spacing is 100-200mm between the existing horizontal threshing machine. The vertical spacing is determined according to the layout level of the threshing machine.

[0052] Step 3: The inclined threshing roller 3 is a threshing roller with multiple groups of moving knives, and the inclination degree of the inclined threshing roller 3 is the same as that of the inclined threshing cover 2.

[0053] Step 3.1: The length of the threshing roller 3 is 2000-4000mm, which is driven to rotate by the driving motor 5. The length of the threshing roller 3 is designed according to the tobacco leaf tearing efficiency.

[0054] Step 3:2: The diameter of the threshing roller is gradually tapered, with a diameter of 200-500mm (excluding the threshing knife) at the upper part, gradually expanding to 600-1000mm (excluding the threshing knife) at the lower part, so as to realize different threshing roller linear speeds during the process of tobacco leaves 11 from the upper part to the lower part, and to preserve the leaf structure as much as possible during the tobacco leaf tearing process.

[0055] Step 3.3: The specific diameter size of the threshing roller is designed according to the tobacco leaf flow, and the larger the tobacco leaf flow, the larger the diameter size.

[0056] Step 3.4: Preferably, to reduce the amount of metal, the inside can be designed as hollow.

[0057] Step 3.5: A plurality of threshing knives (moving knives) are evenly distributed on the inclined threshing roller 3 according to a spiral layout. The length of the threshing knife is generally 300-400mm according to the existing size. The threshing knives of the inclined threshing cover 2 are arranged in a staggered manner, and do not collide with the fixed knives during operation. The installation method is according to the existing threshing knife, which is installed on the threshing roller by fixed screws and hollow screws.

[0058] Step 4: the inclined threshing frame 4 is a porous semicircular conical hollow structure, which is installed in the lower part of the inclined threshing cover 2, and the inside is the inclined threshing roller 3, and the outside is the lower half cover of the inclined threshing cover 2, the inclination of the inclined threshing frame 4 is the same as that of the inclined threshing cover 2, and the inclined threshing frame 4 is a detachable structure.

[0059] Step 4.1: the diameter of the inclined threshing frame 4 is kept variable synchronously with the inclined threshing roller 3, and the diameter is 30-50 mm larger than that of the inclined threshing roller 3, and is consistent with the upper half cover of the inclined threshing cover 2.

[0060] Step 4.2: a plurality of openings are uniformly distributed on the inclined threshing frame 4, and the shape and size of the openings refer to the existing horizontal threshing machine frame, and are determined according to the threshing number

[0061] Step 5: the roller driving motor 5 of the inclined threshing machine is designed according to the existing horizontal threshing machine, and frequency conversion driving is adopted.

[0062] In order to further illustrate the application of the threshing machine, an application process (as shown in the drawing) is designed for the inclined threshing machine. Figure 8 The internal feeding type air separator used in the application process is shown in the patent "an internal feeding type flexible air separation system (ZL202121359617.4)", which has high air separation precision and high efficiency, and does not need to uniformly distribute the incoming tobacco leaves, and can be well matched with the threshing machine to produce better threshing and air separation effect with a more simple process.

[0063] In order to further illustrate the advantages of the utility model, the inclined threshing machine is compared with the traditional threshing and air separation process of 3 threshing and 8 separation, and the stem and leaf separation data measurement results are as follows:

[0064]

[0065]

[0066] The simulation measurement process is as follows (the simulation measurement is measured according to the relationship between the roller linear speed and the loss, and the difference between the frame and the difference between the threshing knife are ignored):

[0067] (1) the threshing and air separation process of the utility model:

[0068]

[0069] (2) the traditional 3 threshing and 8 separation process:

[0070]

[0071]

[0072] (3) the traditional 3 threshing and 8 separation process (using the threshing machine of the utility model):

[0073]

[0074]

[0075] From the above results, the threshing machine of the utility model can also reduce the loss rate and improve the sheet rate.

Claims

1. A kind of inclined threshing machine, comprising Threshing cover (2), drive motor (5), threshing roller (3), threshing frame fence (4), Threshing cover (2) is hollow structure, the shell of threshing machine, forms threshing chamber, Threshing cover (2) is provided with inlet (1) above, Threshing cover (2) is provided with discharge port (6) below, and the tobacco after being beaten enters next process through discharge port (6), Threshing cover (2) is fixedly installed inside fixed knife (7), Threshing roller (3) and threshing frame fence (4) are arranged in threshing chamber of threshing cover (2), Threshing roller (3) is installed with multiple groups of moving knife (8), and moves with fixed knife (7), for tearing tobacco to make stem and leaf separate; Characterized in that, The threshing cover (2), the threshing roller (3), the threshing frame fence (4) are longitudinally inclined arrangement, tobacco enters the inside of threshing chamber through inlet (1), and falls naturally along the inclined direction; The inner diameter of the threshing roller (3) is tapered, gradually expanding from the upper part to the lower part, and the threshing cover (2) and the threshing frame fence (4) keep synchronous variable diameter with the threshing roller (3).

2. The inclined thresher according to claim 1, characterized in that The threshing cover (2) and the threshing frame fence (4) keep synchronous variable diameter with the threshing roller (3), the diameter of the threshing cover (2) is 200-300mm larger than that of the threshing frame fence (4), and the diameter of the threshing frame fence (4) is 30-50mm larger than that of the threshing roller (3).

3. The inclined thresher according to claim 1, characterized in that The threshing cover (2) is divided into upper half cover (9) and lower half cover (10), 3-4 groups of fixed knives (7) are fixedly installed in the upper half cover (9); the fixed knife (7) is a semi-arc-shaped beating knife with an inner arc being an Archimedes spiral, and the concave side is opposite to the rotating direction of the threshing roller (3).

4. The inclined thresher according to claim 1, characterized in that On the threshing roller (3), multiple groups of moving knives (8) are installed from bottom to top according to the Archimedes spiral vertical spacing rule, the moving knife (8) is installed on the threshing roller (3) through a fixed nut and a hollow bolt, the moving knife (8) is a semi-arc-shaped beating knife with an inner arc being an Archimedes spiral, and the concave side is consistent with the rotating direction of the threshing roller (3), which reduces the impact and crushing of the beating knife on the tobacco during 1 rotation tearing leaf.

5. The inclined thresher according to claim 3, characterized in that The vertical spacing of the fixed knife (7) gradually decreases from top to bottom, and the vertical spacing of the fixed knife (7) is between 200mm and 100mm, and the specific vertical spacing is determined according to the process layout level of the threshing machine.

6. The inclined thresher according to claim 4, characterized in that The vertical spacing of the moving knife (8) gradually decreases from top to bottom, and the vertical spacing of the moving knife (8) is between 200mm and 100mm, which avoids collision between the moving knife (8) and the fixed knife (7) during rotation.

7. The inclined thresher according to claim 1, characterized in that The threshing frame fence (4) is uniformly arranged with multiple openings, and is detachably installed between the lower half cover (10) and the threshing roller (3), and the tobacco after being beaten falls into the lower half cover (10) through the openings of the frame fence (4).

8. The inclined thresher according to claim 1, characterized in that The bottom of the threshing roller (3) is directly coaxially driven or connected through chain drive with the drive motor (5), and the drive motor (5) drives the threshing roller (3) to rotate.

Images