A drum-type rapeseed screening device

Abstract

The utility model provides a kind of drum type rapeseed screening device, including pedestal, screening drum is rotatably arranged on pedestal;The screening drum includes cylinder body, the side wall top of the cylinder body is equipped with feed inlet, the side cover is movably arranged in the feed inlet;The front end of the cylinder body is set to open, and end cover is reversibly arranged;The bottom end of the cylinder body is equipped with installation gap;First screen, along the inside of cylinder body detachably is set in the inside of cylinder body in diameter transverse direction;Second screen, detachably is arranged in installation gap, the second screen is located just above first screen, and the mesh of second screen is less than the mesh of first screen;Collecting box is located below screening drum.This scheme is driven by using rotary drum instead of vibration motor, eliminates high-frequency mechanical impact, reduces screen stress fatigue, can effectively improve screen service life.Meanwhile, through double-layer different aperture screen layout, two-stage purification can be realized in single operation, and screening efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of rapeseed processing technology, and more specifically, it relates to a drum-type rapeseed screening device. Background Technology

[0002] In rapeseed processing, screening is a crucial step in removing impurities, shriveled grains, and misshapen grains. Currently, the industry commonly uses vibrating motor-driven screening equipment (such as vibrating screens or flat screens) to separate materials through high-frequency vibration. While this type of equipment can achieve basic screening functions, long-term operation has revealed significant limitations: First, vibrating screens often rely on a single-layer screen structure, only able to classify by a single aperture size, unable to simultaneously separate large and fine impurities; second, rapeseed has a high oil content and is prone to dust adhesion, leading to frequent screen clogging during operation, while fixed screens are difficult to disassemble, requiring machine shutdown for cleaning and maintenance, severely impacting continuous production efficiency. Furthermore, the use of vibration drive increases screen wear, significantly limiting screening efficiency and equipment lifespan. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a drum-type rapeseed screening device to solve the problems of high screen wear and poor separation effect caused by vibrating screening in the prior art.

[0004] A drum-type rapeseed screening device includes a base and a screening drum rotatably mounted on the base.

[0005] The screening drum includes a cylinder body, a feed inlet is provided on the top of the side wall of the cylinder body, and a side cover is movably provided on the feed inlet; the front end of the cylinder body is open and is provided with an end cover that can be flipped over; and an installation notch is provided at the bottom end of the cylinder body.

[0006] The first screen is detachably installed inside the cylinder along the diameter of the cylinder.

[0007] The second screen is detachably installed in the installation notch. The second screen is located directly above the first screen, and the mesh size of the second screen is smaller than that of the first screen.

[0008] The collection box is removably mounted on the base, located below the screening drum.

[0009] Furthermore, the rear end surface of the base is provided with a mounting arm, and a driving component is provided on the mounting arm. The output end of the driving component extends out of the mounting arm and is fixedly connected to the center of the rear end wall of the cylinder. Two sets of supporting rollers are symmetrically arranged on the front end surface of the base. A guide ring is sleeved on the outer wall of the front end of the base. The guide ring is fitted and rolled in the groove of the supporting roller.

[0010] Furthermore, the side cover can be fixedly closed by the first locking assembly; the end cover can be fixedly closed by the second locking assembly.

[0011] Furthermore, a sealing protrusion is provided on the inner side of the end cap.

[0012] Furthermore, an observation window is provided in the middle of the end cap.

[0013] Furthermore, the inner wall of the cylinder is provided with a first mounting groove group, and the first screen is inserted into the first mounting groove group.

[0014] Furthermore, a second mounting groove assembly is provided on the end side of the mounting notch; the second screen includes a screen plate portion and a splicing portion fixedly disposed on the outside of the screen plate portion; the screen plate portion is inserted into the second mounting groove assembly, and the splicing portion is spliced ​​with the end of the mounting notch.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) This solution replaces the vibrating motor with a rotating drum drive, eliminating high-frequency mechanical impact and reducing screen stress fatigue, which can effectively improve the service life of the screen. At the same time, through the double-layer screen with different apertures, two-stage purification can be achieved in a single operation, improving screening efficiency.

[0017] (2) By installing the first and second screens using a plug-in connection, they can be disassembled without tools, enabling rapid screen replacement and further improving screening efficiency. Replacement time is reduced to 3 minutes; Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device;

[0019] Figure 2 This is a schematic diagram of the device from another angle;

[0020] Figure 3 This is a front view structural diagram of the device;

[0021] Figure 4 This is a magnified structural diagram of point A;

[0022] Figure 5 This is a magnified structural diagram at point B;

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1-Base, 2-Cylinder, 20-Inlet, 200-Mounting notch, 21-End cover, 22-Side cover, 5-First screen, 6-Second screen, 7-Collection box, 12-Mounting support arm, 8-Drive component, 4-Support roller, 3-Guide ring, 2201-First locking assembly, 2101-Second locking assembly, 2100-Sealing convex ring, 2102-Observation window, 23-First mounting groove group, 24-Second mounting groove, 60-Mesh plate section, 61-Assembly section. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] like Figures 1-5 As shown, a drum-type rapeseed screening device includes a base 1, which is composed of a welded frame of channel steel, with support rollers 4 installed on both sides of the front end of the upper surface. The support rollers 4 include a base and grooved rollers that are rotatably mounted.

[0030] A screening drum is rotatably mounted on a base 1. The screening drum includes a cylinder 2, specifically, the cylinder 2 is formed by rolling and welding low-carbon steel plate, with an open front end and a drive shaft seat welded to the center of the rear end. The drive shaft of the drive component 8 is connected to the drive shaft seat, and the cylinder 2 is controlled to rotate under the drive of the drive component 8. In this solution, the drive component 8 includes at least a motor, a differential, and a drive shaft.

[0031] The top of the side wall of the cylinder 2 has a feed inlet 20, and a side cover 22 is movably mounted on the feed inlet 20. Specifically, a rectangular opening is formed at the top of the side wall of the cylinder 2, and the side cover 22 is hinged to it and locked by a first locking assembly 2201. The front end of the cylinder 2 is open and has an end cover 21 that can be flipped over. Specifically, a sealing ring 2100 is embedded in the inner side of the end cover, using an existing rubber sealing strip, and it is closed by a second locking assembly 2101. An observation window 2102 is provided in the middle. In this solution, the first locking assembly 2201 and the second locking assembly 2101 can be any locking assembly in the prior art, as long as it can achieve the closure of the cover and the cylinder.

[0032] The first screen 5 is detachably installed inside the cylinder 2 along the diameter of the cylinder 2; specifically, the first screen 5 is made of stainless steel woven mesh, with sliders welded on both sides, and the sliders are inserted into the first mounting groove group 23 on the inner wall of the cylinder.

[0033] The bottom end of the cylinder 2 has an installation notch 200; the second screen 6 is detachably installed in the installation notch 200, the second screen 6 is located directly above the first screen 5, and the mesh size of the second screen 6 is smaller than that of the first screen 5; specifically, the second screen 6 adopts a combined design, the screen plate part 60 is made of stainless steel perforated plate, inserted into the second installation groove group 24, and the splicing part 61 is set to the end wall thickness of the cylinder 2, fitting and closing with the installation notch 200. In this solution, the first installation groove group 23 and the second installation groove group 24 are set as existing guide rail groove structures.

[0034] The collection box 7 is removably mounted on the base 1, located below the screening drum. Preferably, the top-view orthographic projection size of the cylinder 2 is smaller than the size of the collection box 7.

[0035] To achieve stable rotation of the cylinder 2, a driving component 8 is used at the rear end of the cylinder 1, and a combination structure of a guide ring 3 and a support roller 4 is used at the front end. In this design, the guide ring 3 is made of hot-rolled steel ring, which is fitted onto the front end of the cylinder 2 and embedded in the V-shaped groove of the support roller 4 to form a rolling support pair. When the driving component 8 drives the cylinder to rotate, the guide ring 3 rolls along the support roller 4, achieving axial positioning and radial load bearing of the cylinder 2.

[0036] The working process of this device is as follows: Open the side cover 22, put rapeseed raw material into the feed inlet 20, lock the side cover 22, and start the drive unit 8. The rapeseed tumbles with the cylinder 2, and the seeds and fine impurities pass through the first screen 5, while large particles of impurities such as fruit shells / stones are retained on the surface of the first screen 5. The material that passes through the first screen 5 falls to the second screen 6, and dust / particles pass through the mesh, while qualified rapeseed is retained on the surface of the second screen 6.

[0037] Among them, qualified rapeseed remains in the second screen 6, large impurities remain in the first screen 5, and fine impurities pass through the second screen 6 and fall into the collection box 7.

[0038] You can also choose to use a sieve with different mesh sizes depending on the type of rapeseed.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A drum-type rapeseed screening device, characterized in that, The utility model provides a kind of screening drum, including Base (1), Screening drum rotatably arranged on base (1); The screening drum includes Drum body (2), the side wall top of the drum body (2) is provided with feed inlet (20), the side cover (22) is movably arranged in feed inlet (20);The front end of the drum body (2) is provided as open, and end cover (21) is reversibly arranged;The bottom end of the drum body (2) is provided with mounting gap (200); First screen (5), along the diameter transverse direction of drum body (2) is detachably arranged in the inside of drum body (2); Second screen (6), detachably arranged in mounting gap (200), the second screen (6) is located above first screen (5), and the mesh of second screen (6) is smaller than the mesh of first screen (5); Collecting box (7), pullably arranged on base (1), located below screening drum.

2. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The rear end surface of the base (1) is provided with mounting arm (12), the mounting arm (12) is provided with driving element (8), the output end of driving element (8) penetrates mounting arm (12) and is fixedly connected with the rear end wall center of drum body (2);The front end surface of the base (1) is provided with two groups of support rollers (4) symmetrically;The front end outer wall of the base (1) is provided with guide ring (3);The guide ring (3) is embedded and rolled in the wheel groove of support roller (4).

3. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The side cover (22) can be fixed to close feed inlet (20) by first lock element assembly (2201);The end cover (21) is fixed to close the front end opening by second lock element assembly (2101).

4. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The inner side of the end cover (21) is provided with sealing convex ring (2100).

5. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The middle part of the end cover (21) is provided with observation window (2102).

6. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The inner wall of the drum body (2) is provided with first installation slot group (23), and the first screen (5) is inserted in first installation slot group (23).

7. A drum sieve for rapeseed as claimed in claim 1, characterized in that: The end side of the mounting gap (200) is provided with second installation slot group (24);The second screen (6) includes mesh plate part (60) and split part (61) fixedly arranged outside mesh plate part (60);The mesh plate part (60) is inserted in second installation slot group (24), and the split part (61) is split with the end of mounting gap (200).

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