Assembled screen drum

Abstract

The utility model discloses an assembly type screen drum in the field of screen drums, which comprises a plurality of unit drum bodies which are sequentially connected end to end, the end face of the unit drum body positioned at the front end is connected with an end drum body, the end face of the unit drum body positioned at the rear end is also connected with an end drum body, and each unit drum body comprises two first annular connecting bodies which are opposite left and right. A cylindrical screen is arranged between the two first connecting bodies, the end barrel comprises two second annular connecting bodies which are opposite left and right, and a screen is also arranged between the two second connecting bodies. The length of the screen drum can be adjusted, and the screen drum has the advantages of being flexible to assemble and high in field environment adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of sieve cylinders, and specifically relates to an assembled sieve cylinder. Background Technology

[0002] A cylindrical primary cleaning screen is a pre-cleaning device that uses the rotating motion of the screen cylinder to remove large impurities from grains. It is suitable for primary cleaning of raw grains in grain processing, feed production, grain storage, and other industries. It can remove large impurities such as straw, wheat stalks, corn cobs, grass stalks, and even large stones and bricks, effectively preventing equipment malfunctions and damage caused by these impurities. Currently, the screen cylinders are manufactured using welding, resulting in fixed length dimensions that cannot be adjusted according to site conditions, leading to poor adaptability and a lack of flexible assembly capabilities. Utility Model Content

[0003] The purpose of this invention is to provide an assembled screen cylinder that can adjust the length of the screen cylinder, has the characteristics of flexible assembly, and is highly adaptable to the site environment.

[0004] The purpose of this utility model is achieved as follows: an assembled screen cylinder includes several unit cylinders connected end to end. The end face of the unit cylinder at the front end is connected to an end cylinder, and the end face of the unit cylinder at the rear end is also connected to an end cylinder. Each unit cylinder includes two left-right opposite annular connecting bodies I, and a cylindrical screen is provided between the two connecting bodies I. Each end cylinder includes two left-right opposite annular connecting bodies II, and a screen is also provided between the two connecting bodies II.

[0005] This invention assembles several unit cylinders and installs end cylinders at the ends of the unit cylinders, allowing for free adjustment of the screen cylinder's length. The end cylinders extend outwards along their central axis and are rotatably supported on bearing seats, driven by a motor to rotate the screen cylinder. Compared to existing technologies, this invention offers the advantages of: adjustable screen cylinder length, flexible assembly, and strong adaptability to various site environments.

[0006] As a further improvement of this utility model, a plurality of mounting blocks are evenly distributed circumferentially on the outer periphery of the connecting body 1. Two corresponding mounting blocks 1 between two adjacent connecting bodies 1 are fixed together by bolts and nuts. At least one rubber sealing ring is provided between two adjacent connecting bodies 1. The sealing ring improves the sealing performance. Bolts pass through two mounting blocks 1 and are locked by nuts.

[0007] As a further improvement of this utility model, a plurality of circumferentially distributed mounting blocks II are provided on the outer periphery of the connecting body II at one end of the end cylinder near the unit cylinder. Each mounting block II of the connecting body II corresponds to each mounting block I of the adjacent connecting body I. The mounting blocks II and the corresponding mounting blocks I are fixed together by bolts and nuts. At least one rubber sealing ring is provided between the connecting body II and the adjacent connecting body I. The end cylinder is fixedly connected to the adjacent unit cylinder by fasteners.

[0008] As a further improvement of this utility model, a plurality of radially fixed rods are provided on the inner side of the connecting body two at the other end of the end cylinder. Each fixed rod is fixed to the central shaft, which is coaxial with the connecting body two and extends outward at its end. The central shaft of the end cylinder is supported on a bearing seat. Each unit cylinder adopts a design without a central shaft, which can reduce the weight of the screen cylinder.

[0009] As a further improvement of this utility model, the screen is cylindrical and includes several connecting strips evenly distributed circumferentially between two connecting bodies or two connecting bodies. The connecting strips are parallel to the axis of the unit cylinder, and several annular reinforcing strips are provided on the outer periphery of each connecting strip at intervals along the axial direction. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the end face structure of each fixing rod of the unit cylinder.

[0012] Figure 3 This is a schematic diagram of the end face structure of connector one.

[0013] Figure 4 This is a cross-sectional view of the sieve.

[0014] The components include: 1. Unit cylinder; 2. End cylinder; 2a. Connecting strip; 2b. Reinforcing strip; 3. Connecting body one; 4. Screen; 5. Connecting body two; 6. Mounting block one; 7. Bolt; 8. Sealing ring; 9. Mounting block two; 10. Fixing rod; 11. Central shaft. Detailed Implementation

[0015] like Figure 1-4As shown, an assembled screen cylinder includes several unit cylinders 1 connected end-to-end. The end face of the front unit cylinder 1 is connected to an end cylinder 2, and the end face of the rear unit cylinder 1 is also connected to an end cylinder 2. Each unit cylinder 1 includes two opposing annular connecting bodies 3, with a cylindrical screen 4 positioned between the two connecting bodies 3. Each end cylinder 2 includes two opposing annular connecting bodies 2 5, with a screen 4 also positioned between the two connecting bodies 2 5. Several circumferentially distributed mounting blocks 6 are arranged around the outer periphery of each connecting body 3. Two adjacent mounting blocks 6 corresponding to each other are fixed together by bolts 7 and nuts. At least one rubber sealing ring 8 is provided between two adjacent connecting bodies 3. The sealing ring 8 improves the sealing performance. Bolts 7 pass through two mounting blocks 6 and are locked in place by nuts. A plurality of circumferentially distributed mounting blocks 9 are provided on the outer periphery of the connecting body 2 5 near the end of the end cylinder 2, which is close to the unit cylinder 1. Each mounting block 9 of the connecting body 2 5 corresponds to a mounting block 6 of the adjacent connecting body 3. The mounting blocks 9 and the corresponding mounting blocks 6 are fixed together by bolts 7 and nuts. At least one rubber sealing ring 8 is provided between the connecting body 2 5 and the adjacent connecting body 3. The end cylinder 2 is fixedly connected to the adjacent unit cylinder 1 by fasteners.

[0016] Several radially fixed rods 10 are evenly distributed circumferentially on the inner side of the connecting body 5 at the other end of the end cylinder 2. Each fixed rod 10 is fixed to the central shaft 11, which is coaxial with the connecting body 5 and extends outward at its end. The central shaft 11 of the end cylinder 2 is supported on a bearing seat. Each unit cylinder 1 adopts a design without a central shaft 11, which can reduce the weight of the screen cylinder.

[0017] The screen 4 is cylindrical and includes several connecting strips 2a that are evenly distributed circumferentially between two connecting bodies 5 or two connecting bodies 3. The connecting strips 2a are parallel to the axis of the unit cylinder 1. Several annular reinforcing strips 2b are provided on the outer periphery of each connecting strip 2a at intervals along the axial direction.

[0018] This invention assembles several unit cylinders 1, and connects end cylinders 2 to the ends of the unit cylinders 1, allowing for free adjustment of the screen cylinder length. The central shaft 11 of the end cylinder 2 extends outward and is rotatably supported on a bearing seat, driven by a motor to rotate the screen cylinder. The advantages of this invention are: it allows for adjustment of the screen cylinder length, features flexible assembly, and is highly adaptable to various site environments.

[0019] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An assembled screen cylinder, characterized in that, The device comprises several unit cylinders connected end to end. The end face of the unit cylinder at the front end is connected to an end cylinder, and the end face of the unit cylinder at the rear end is also connected to an end cylinder. Each unit cylinder includes two left-right opposing annular connecting bodies I, with a cylindrical screen between the two connecting bodies I. Each end cylinder includes two left-right opposing annular connecting bodies II, with a screen between the two connecting bodies II. Several mounting blocks I are evenly distributed circumferentially around the outer periphery of each connecting body I. Two left-right corresponding mounting blocks I between two adjacent connecting bodies I are fixed together by bolts and nuts. At least one rubber sealing ring is provided between two left-right adjacent connecting bodies I.

2. The assembled screen cylinder according to claim 1, characterized in that, The outer periphery of the connector two at one end of the end cylinder near the unit cylinder is provided with a plurality of mounting blocks two evenly distributed in the circumferential direction. Each mounting block two of the connector two is provided corresponding to each mounting block one of the adjacent connector one. The mounting blocks two and the corresponding mounting blocks one are fixed together by bolts and nuts. At least one rubber sealing ring is provided between the connector two and the adjacent connector one.

3. The assembled screen cylinder according to claim 2, characterized in that, The other end of the end cylinder is provided with several radially fixed rods evenly distributed in the circumferential direction on the inner side of the connecting body two. Each fixed rod is fixed to the central axis, which is coaxial with the connecting body two and extends outward from the end of the central axis.

4. An assembled screen cylinder according to any one of claims 1-3, characterized in that, The screen is cylindrical and includes several connecting strips evenly distributed circumferentially between two connecting bodies or two connecting bodies. The connecting strips are parallel to the axis of the unit cylinder, and several annular reinforcing strips are provided on the outer periphery of each connecting strip at intervals along the axial direction.

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