A positive and reverse beating roller

Abstract

The present invention relates to a forward and reverse beating roller, belonging to the technical field of tobacco leaf threshing equipment. It includes a driving shaft, a transmission shaft, an inner installation cylinder, and an outer installation cylinder; the driving shaft is rotatably installed inside the inner installation cylinder, and a transmission shaft arranged radially along the inner installation cylinder is provided on the inner installation cylinder. The lower end of the transmission shaft is connected to the driving shaft through gear transmission; the outer installation cylinder is rotatably installed outside the inner installation cylinder, and a blade installation seat is provided on the outer installation cylinder. By making the adjacent outer installation cylinders rotate relative to each other, driving the axially adjacent beating knives to rotate relative to each other, compared with the leaf threshing method of combining fixed knives and moving knives, each relatively rotating blade has a certain kinetic energy and can effectively tear the tobacco leaves; at the same rotation speed, there are more misaligned leaf threshing times between the axially adjacent blades within the same time, greatly improving the leaf tearing efficiency of the beating roller, and there are multiple misaligned leaf tearing points between adjacent blades, increasing the leaf tearing action range of the beating roller.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco leaf threshing equipment, and specifically relates to a positive and reverse threshing roller. Background Art

[0002] The threshing process is an important process in the tobacco leaf redrying process. It is an important process for separating tobacco leaves from tobacco stems, and the efficiency of this process directly affects the indexes of the leaf tearing rate and breakage rate in threshing.

[0003] Currently, a combination of a fixed knife and a moving knife in a frame is mostly used for threshing. The tearing efficiency is adjusted by adjusting technical parameters such as the distance between the knife frames, the density of the threshing knives, the rotation speed of the threshing roller, or the opening size of the frame. However, at present, it has entered a bottleneck area. After achieving a balance between the breakage rate and the leaf tearing rate, the leaf tearing rate can no longer be improved. The main reason is that the moving knife can only tear leaves out of position once with the corresponding fixed knife when it rotates one circle, and there are many ineffective rotation intervals between the fixed knife and the moving knife, resulting in slow threshing efficiency. Summary of the Invention

[0004] In order to solve the above problems, the invention provides a positive and reverse threshing roller, which has multiple out-of-position leaf tearing points and effectively improves the threshing efficiency.

[0005] To achieve the above object, the invention is implemented according to the following technical solutions:

[0006] A positive and reverse threshing roller includes a driving shaft 1, a transmission shaft 2, an inner mounting cylinder 3, and an outer mounting cylinder 4. The driving shaft 1 is rotatably installed in the inner mounting cylinder 3. Along the axial direction of the inner mounting cylinder 3, transmission shafts 2 are evenly spaced and arranged along the radial direction of the inner mounting cylinder 3. The lower end of the transmission shaft 2 is connected to the driving shaft 1 through a gear transmission. The outer mounting cylinders 4 are rotatably installed outside the inner mounting cylinder 3 and are evenly spaced in pairs along the axial direction of the inner mounting cylinder 3. Blade mounting seats 5 are provided on the outer mounting cylinders 4. Each pair of outer mounting cylinders 4 is respectively arranged corresponding to the transmission shafts 2 one by one, and two of the outer mounting cylinders 4 are respectively connected to the upper ends of the transmission shafts 2 through gears. When the transmission shafts 2 rotate, they drive the two outer mounting cylinders 4 to rotate relative to each other.

[0007] Preferably, a groove 6 is provided on the end face of the outer mounting cylinder 4, and a ball 7 located in the groove 6 is provided between adjacent outer mounting cylinders 4 through a cage 8.

[0008] Preferably, an annular groove 9 is provided on one end face of the outer mounting cylinder 4, and the annular groove 9 is located outside the groove 6. An annular protrusion 10 corresponding to the position of the annular groove 9 is provided on the other end face.

[0009] Preferably, a tapered tooth disc 11 is fixedly arranged inside the outer mounting cylinder 4, and the tapered tooth disc 11 meshes with a tapered gear 12 installed on the transmission shaft 2.

[0010] Preferably, connection seats 13 are respectively arranged at both ends of the inner mounting cylinder 3, and the driving shaft 1 is connected to the connection seat 13 through the bearing seat I 15.

[0011] Preferably, the transmission shaft 2 is connected to the inner mounting cylinder 3 through the bearing seat II 14.

[0012] Preferably, the blade mounting seat 5 is arranged near the end of the outer mounting cylinder 4.

[0013] Preferably, the rotational speed of the outer mounting cylinder 4 gradually decreases from the middle to both ends.

[0014] Advantages of the present invention:

[0015] By relatively rotating adjacent outer mounting cylinders, the axially adjacent beating knives are driven to relatively rotate. Compared with the leaf-beating method of combining fixed knives and moving knives, each relatively rotating blade has a certain kinetic energy and can effectively tear the tobacco leaves; at the same rotational speed, there are more misaligned leaf-beating times between axially adjacent blades within the same time, greatly improving the leaf-tearing efficiency of the beating roller, and there are multiple misaligned leaf-tearing points between adjacent blades, increasing the leaf-tearing action range of the beating roller. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0018] Figure 2 is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 is the present invention Figure 2 magnified view at A;

[0020] Figure 4 is a transmission schematic diagram of the transmission shaft of the present invention;

[0021] In the figure, 1 - driving shaft, 2 - transmission shaft, 3 - inner mounting cylinder, 4 - outer mounting cylinder, 5 - blade mounting seat, 6 - groove, 7 - ball, 8 - cage, 9 - annular groove, 10 - annular protrusion, 11 - conical tooth disc, 12 - bevel gear, 13 - connection seat, 14 - bearing seat II, 15 - bearing seat I. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and beneficial effects of the present invention more clear, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0023] As shown in the figure, a forward and reverse roller includes a driving shaft 1, a transmission shaft 2, an inner mounting tube 3, and an outer mounting tube 4; the driving shaft 1 is rotatably mounted in the inner mounting tube 3, the inner mounting tube 3 and the driving shaft 1 are concentrically arranged, and the inner mounting tube 3 is fixedly connected to the external frame for fixing the position of the roller; the driving shaft 1 is connected to the external driving motor for inputting power. The inner mounting tube 3 is evenly spaced along its axial direction and provided with transmission shafts 2 arranged along the radial direction of the inner mounting tube 3. To ensure the transmission uniformity of the transmission shaft 2, at least two transmission shafts 2 are arranged in a circular array around the circumferential direction of the mounting tube. Preferably, two transmission shafts 2 are arranged on the same radial plane of the inner mounting tube 3. Preferably, the transmission shaft 2 is connected to the inner mounting tube 3 through a bearing seat Ⅱ14, the bearing seat Ⅱ14 is fixedly connected to the inner mounting tube 3 through screws, and the transmission shaft 2 is installed on the bearing seat Ⅱ14 through a bearing, which effectively improves the convenience of installing and disassembling the transmission shaft 2, and makes it more convenient to repair and replace the transmission shaft 2.

[0024] The lower end of the transmission shaft 2 is connected to the drive shaft 1 through a bevel gear 12, that is, a bevel gear is installed at the lower end of the transmission shaft 2, and a bevel gear disc meshing with the bevel gear is installed at the corresponding position of the drive shaft 1. The drive shaft 1 drives the bevel gear disc to rotate, and the bevel gear disc drives the bevel gear meshing therewith to rotate, and the bevel gear drives the transmission shaft 2 to rotate, thereby transmitting the rotation of the drive shaft 1 to the transmission shaft 2. The inner mounting cylinder 3 is externally rotatably installed with outer mounting cylinders 4 arranged in pairs evenly spaced along the axial direction of the inner mounting cylinder 3. Adjacent outer mounting cylinders 4 are tightly butted against each other to form a rotatable cylinder sleeve outside the outer mounting cylinder 4. A blade mounting seat 5 is provided on the outer mounting cylinder 4. The blade mounting seat 5 is used to install a leaf cutter. Each pair of outer mounting cylinders 4 is respectively arranged in one-to-one correspondence with the transmission shaft 2, and two of the outer mounting cylinders 4 are respectively connected to the upper end of the transmission shaft 2 through gears, such as Figure 2As shown in the figure, the two outer mounting cylinders 4 in each pair of outer mounting cylinders 4 are arranged symmetrically about the transmission shaft 2. Two grooves are provided inside the outer mounting cylinder 4. The groove far from the transmission shaft 2 is used to mount the bearing. The outer mounting cylinder 4 is rotatably mounted on the inner mounting cylinder 3 through the bearing. The groove close to the transmission shaft 2 is used to mount the conical tooth disc 11. The conical tooth disc 11 meshes with the conical gear 12 mounted on the transmission shaft 2. When the transmission shaft 2 rotates, the two outer mounting cylinders 4 are driven to rotate relative to each other through the conical tooth disc 11 and the conical gear 12, so as to drive the blades on the outer mounting cylinder 4 to rotate relative to each other. Compared with the leaf-beating method of combining a fixed knife and a moving knife, each blade that rotates relative to each other has a certain kinetic energy and can effectively tear the tobacco leaves; at the same rotation speed, there are more dislocation times between the blades on adjacent outer mounting cylinders 4 in the same time, greatly improving the leaf-tearing efficiency of the beating roller, and there are multiple dislocation leaf-tearing points between adjacent blades, increasing the leaf-tearing action range of the beating roller.

[0025] In this embodiment, a groove 6 is provided on the end face of the outer mounting cylinder 4. A ball 7 located in the groove 6 is provided between adjacent outer mounting cylinders 4 through a cage 8, effectively reducing the friction between the outer mounting cylinders 4, improving the rotation smoothness of the outer mounting cylinder 4, and effectively extending the service life of the outer mounting cylinder 4. As a preference, an annular groove 9 is provided on one end face of the outer mounting cylinder 4, and the annular groove 9 is located outside the groove 6. An annular protrusion 10 corresponding to the position of the annular groove 9 is provided on the other end face. During installation, the annular protrusion 10 on the outer mounting cylinder 4 is inserted into the annular groove 9 on the adjacent outer mounting cylinder 4, forming a labyrinth seal between adjacent outer mounting cylinders 4, effectively preventing tobacco leaves from entering the outer mounting cylinder 4 through the gap between adjacent outer mounting cylinders 4 and causing damage to the internal components of the outer mounting cylinder 4, and effectively improving the service life of the beating roller.

[0026] In this embodiment, connection seats 13 are respectively provided at both ends of the inner mounting cylinder 3. The inner mounting cylinder 3 is connected to an external frame through the connection seats 13, making the installation of the beating roller more convenient. The drive shaft 1 is connected to the connection seat 13 through a bearing seat Ⅰ15, connecting the drive shaft 1 and the inner mounting cylinder 3 into one body, making the installation and use of the beating roller more convenient.

[0027] In this embodiment: The blade mounting seat 5 is arranged close to the end of the outer mounting cylinder 4. Two circles of blade mounting seats are arranged on each outer mounting cylinder 4, respectively close to both ends of the outer mounting cylinder 4, reducing the distance between the blades on adjacent outer mounting cylinders 4, forming multiple leaf-tearing points between adjacent outer mounting cylinders 4, and effectively improving the leaf-beating efficiency.

[0028] In this embodiment, by adjusting the gear transmission ratio between the drive shaft 1 and the transmission shaft 2 or the gear transmission ratio between the transmission shaft 2 and the outer mounting cylinder 4, the rotational speed of the outer mounting cylinder 4 gradually decreases from the middle to both ends, optimizing the distribution of the motor torque on the beating roller, improving the working efficiency of the middle beating roller, further enhancing the utilization rate of energy, and improving the leaf tearing index.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present invention; the dimensions of the drawings have nothing to do with the specific physical objects, and the physical dimensions can be arbitrarily changed.

Claims

1. A forward and reverse beating roller, characterized in that: It includes a drive shaft (1), a transmission shaft (2), an inner mounting cylinder (3), and an outer mounting cylinder (4); the drive shaft (1) is rotatably mounted inside the inner mounting cylinder (3), and the transmission shafts (2) arranged radially with respect to the inner mounting cylinder (3) are evenly spaced along the axial direction of the inner mounting cylinder (3). The lower end of the transmission shaft (2) is connected to the drive shaft (1) through gear transmission; the outer mounting cylinders (4) are rotatably mounted outside the inner mounting cylinder (3) and are arranged in pairs at even intervals along the axial direction of the inner mounting cylinder (3). A blade mounting seat (5) is provided on the outer mounting cylinder (4). Each pair of outer mounting cylinders (4) is respectively arranged corresponding to the transmission shaft (2), and two of the outer mounting cylinders (4) are respectively connected to the upper end of the transmission shaft (2) through gears. When the transmission shaft (2) rotates, it drives the two outer mounting cylinders (4) to rotate relative to each other.

2. The forward and reverse beating roller according to claim 1, characterized in that: A groove (6) is provided on the end face of the outer mounting cylinder (4), and a ball (7) located in the groove (6) is provided between adjacent outer mounting cylinders (4) through a cage (8).

3. The forward and reverse beating roller according to claim 2, characterized in that: An annular groove (9) is provided on one end face of the outer mounting cylinder (4), and the annular groove (9) is located outside the groove (6). An annular protrusion (10) corresponding to the position of the annular groove (9) is provided on the other end face.

4. The forward and reverse beating roller according to any one of claims 1, 2 or 3, characterized in that: A conical tooth disc (11) is fixedly provided inside the outer mounting cylinder (4), and the conical tooth disc (11) meshes with a conical gear (12) mounted on the transmission shaft (2).

5. The forward and reverse beating roller according to claim 4, characterized in that: Connection seats (13) are respectively provided at both ends of the inner mounting cylinder (3), and the drive shaft (1) is connected to the connection seat (13) through a bearing seat Ⅰ (15).

6. The forward and reverse beating roller according to claim 5, characterized in that: The transmission shaft (2) is connected to the inner mounting cylinder (3) through a bearing seat Ⅱ (14).

7. The forward and reverse beating roller according to claim 6, characterized in that: The blade mounting seat (5) is provided near the end of the outer mounting cylinder (4).

8. The forward and reverse beating roller according to claim 7, characterized in that: The rotational speed of the outer mounting cylinder (4) gradually decreases from the middle to both ends.

Images