A new drum screen

Abstract

The utility model discloses a novel drum screen relates to broken screening technical field, aims at solving the problem that cannot block the material of the overall state for the strip shape in the prior art with the diameter less than the screen hole diameter, the technical scheme that adopts is, the both sides rotation connection runner of base, runner connection drive mechanism, there is screen cylinder on the runner, and the screen cylinder is formed by the splicing of screening board piece, and the screening board piece includes first screen board and second screen board, and the first screen board and second screen board are equipped with screen pipe, and the second screen board top is equipped with anti -whipping cover, the utility model discloses the setting of screen pipe and first screen board and second screen board, and the strip shape material will be jammed and blocked by screen pipe and anti -whipping cover when passing through screen pipe, and simultaneously in the screen cylinder rotation process, the strip shape material will be due to gravity again fall in the screen cylinder inside, thereby realize the screening of the material of the overall state for the strip shape with the diameter less than the screen hole diameter, thereby improve the purity of the under -screen material.

Description

Technical Field

[0001] This utility model relates to the field of crushing and screening technology, specifically a novel drum screen. Background Technology

[0002] Chinese patent CN222970270U discloses a plastic crushing and screening device. The technical solution includes a screening frame, a feeding component on the top of the screening frame, a discharge frame on one side of the screening frame, a driving component on one side of the screening frame, a rotating drum inside the screening frame, a screen on the surface of the drum, one side of the screen extending out of the drum, a connecting rod fixedly installed inside the drum, a lever fixedly installed on the surface of the connecting rod, and screen holes on the surface of the screen, the screen holes being designed as strip grooves.

[0003] The existing technology also has the following shortcomings: it cannot block materials with a diameter smaller than the sieve hole diameter but with an overall elongated shape. During the screening process, such elongated materials will still fall through the sieve holes and into the undersize, thus affecting the purity of the undersize material. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a new type of drum screen that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses a novel drum screen. The technical solution adopted is as follows: it includes a base, rotating wheels rotatably connected to both sides of the base, the rotating wheels being connected to a drive mechanism, a screen cylinder on the rotating wheels, the screen cylinder being formed by splicing screening plates, the screening plates including a first screen plate and a second screen plate, a screen tube being provided between the first screen plate and the second screen plate, and an anti-sling cover being provided above the second screen plate.

[0006] As a preferred technical solution of this utility model, a first sieve hole is distributed on the first sieve plate, a second sieve hole is distributed on the second sieve plate, and the sieve tube is concentrically arranged with the first sieve hole and the second sieve hole.

[0007] As a preferred technical solution of this utility model, the anti-swing cover has a semi-enclosed structure, and there is a channel between the anti-swing cover and the second sieve plate. The channel direction on all sieve plates is consistent.

[0008] As a preferred technical solution of this utility model, the screening plates are connected by connecting plates.

[0009] As a preferred technical solution of this utility model, the rotating wheel is rotatably connected to the base through a bearing seat. Tracks are provided on both sides of the screen cylinder, and the tracks contact the rotating wheel to support the entire screen cylinder body. A blocking wheel is rotatably connected to the base on the side of the rotating wheel, and the blocking wheel contacts the side of the track.

[0010] As a preferred technical solution of this utility model, the screen cylinder is wrapped with a shell, the two sides of the shell are fixed to the two sides of the base, the bottom of the base is opened with a material leakage port, the bottom of the shell is opened with a material outlet, and the material leakage port and the material outlet are connected.

[0011] As a preferred technical solution of this utility model, the drive mechanism includes a drive motor, a transmission rod and a universal joint. The output shaft of the drive motor is connected to the transmission rod through the universal joint, and the transmission rod is connected to the wheel through the universal joint.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up the screen tube and the first screen plate and the second screen plate, the long strip material will be jammed and blocked by the screen tube and the anti-sling cover when passing through the screen tube due to its length. At the same time, during the rotation of the screen cylinder, the long strip material will fall back into the screen cylinder due to gravity, thereby achieving the screening of materials with a diameter smaller than the screen hole diameter but with an overall long strip shape, thereby improving the purity of the undersize material. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ; Figure 3 This is a cross-sectional view of the structure of this utility model. Figure 1 ; Figure 4 This is a cross-sectional view of the structure of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the screening plate structure of this utility model. Figure 1 ; Figure 6 This is a schematic diagram of the screening plate structure of this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the sieve cylinder structure of this utility model; Figure 8 This is a cross-sectional view of the novel structure of this utility model. Figure 3 .

[0014] In the diagram: 1. Base; 101. Discharge port; 2. Rotary wheel; 3. Bearing seat; 4. Drive mechanism; 401. Drive motor; 402. Transmission rod; 403. Universal joint; 5. Screen cylinder; 501. Track; 6. Screening plate; 601. First screen plate; 602. Screen tube; 603. Second screen plate; 604. Anti-throw cover; 605. First screen hole; 606. Second screen hole; 607. Channel; 608. Connecting plate; 7. Blocking wheel; 8. Shell; 801. Discharge port. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] like Figures 1 to 8 As shown, this utility model discloses a novel rotary drum screen. The technical solution includes a base 1, with rotating wheels 2 rotatably connected to both sides of the base 1. The rotating wheels 2 are connected to a drive mechanism 4. The drive mechanism 4 includes a drive motor 401, a transmission rod 402, and a universal joint 403. The output shaft of the drive motor 401 is connected to the transmission rod 402 via the universal joint 403. The transmission rod 402 is connected to the rotating wheels 2 via the universal joint 403. The rotating wheels 2 are rotatably connected to the base 1 via bearing seats 3. The rotating wheels 2 have... The screen cylinder 5 has rails 501 on both sides, which contact the rotating wheel 2 to support the entire screen cylinder 5 and transmit rotational force. A blocking wheel 7 is rotatably connected to the base 1 on the side of the rotating wheel 2. The blocking wheel 7 contacts the side of the rails 501 to limit the movement of the screen cylinder 5. The screen cylinder 5 is composed of screening plates 6 and connecting plates 608 bolted together. The screening plates 6 include a first screen plate 601 and a second screen plate 603. The first screen plate 601 and the second screen plate 603 are connected... A screen tube 602 is provided. A first screen plate 601 has first screen holes 605 distributed on it, and a second screen plate 603 has second screen holes 606 distributed on it. The screen tube 602 is concentrically arranged with the first screen holes 605 and the second screen holes 606. The diameter of the screen tube 602 is 1.1-1.2 times the diameter of the screen holes, preventing long strip-shaped materials from passing through the second screen holes 606. An anti-slip cover 604 is bolted to the top of the second screen plate 603. The anti-slip cover 604 has a semi-enclosed structure, and there is a gap between the anti-slip cover 604 and the second screen plate 603. There is a channel 607, and the other three sides of the anti-spin cover 604 are attached to the second screen plate 603. The channel 607 on all screening plates 6 are in the same direction. The anti-spin cover 604 is used to guide the screened material and block long strips of material. The screen cylinder 5 is wrapped with a shell 8. The two sides of the shell 8 are fixed to the two sides of the base 1. The bottom of the base 1 has a material leakage port 101, and the bottom of the shell 8 has a discharge port 801. The material leakage port 101 and the discharge port 801 are connected to guide the material to be discharged from the material leakage port 101.

[0017] The working principle of this utility model is as follows: During the screening operation, the drive motor 401 is first started. The drive motor 401 transmits the driving force to the rotating wheel 2 through the universal joint 403 and the transmission rod 402, thereby driving the rotating wheel 2 to rotate. The rotating wheel 2 contacts the tracks 501 on both sides of the screen cylinder 5, thereby driving the screen cylinder 5 to rotate counterclockwise synchronously. Figure 5 Figure 7 As shown, the blocking wheel 5 fits against the side of the track 501, thereby ensuring that the screen cylinder 5 rotates stably without deviating.

[0018] Then, the material to be screened is put into one end of the screen cylinder 5. As the screen cylinder 5 rotates, the material that meets the particle size requirements passes through the first screen hole 605, the screen tube 602 and the second screen hole 606 in sequence, enters the anti-throw cover 604 and is thrown out from the channel 607. At this time, the screened material enters the space between the screen cylinder 5 and the shell 8, and is finally discharged through the discharge port 801 of the shell 8 and the leakage port 101 of the base 1, thus completing the screening.

[0019] For materials with a diameter smaller than the sieve aperture but in the shape of long strips, due to the arrangement of the sieve tube 602, the first sieve plate 601 and the second sieve plate 603, the long strips of material will be stuck and blocked by the sieve tube 602 and the anti-sling cover 604 when passing through the sieve tube 602 due to their length. At the same time, during the rotation of the sieve cylinder 5, the long strips of material will fall back into the sieve cylinder 5 due to gravity until they are discharged from the other end of the sieve cylinder 5, thereby achieving the separation of the long strips of material.

[0020] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0021] Components not described in detail in this article are existing technologies.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel drum screen, comprising a base (1), characterized in that: The base (1) is rotatably connected to the two sides of the rotating wheel (2), the rotating wheel (2) is connected to the drive mechanism (4), the rotating wheel (2) has a screen cylinder (5), the screen cylinder (5) is spliced ​​by the screening plate (6), the screening plate (6) includes a first screen plate (601) and a second screen plate (603), a screen tube (602) is provided between the first screen plate (601) and the second screen plate (603), and an anti-swing cover (604) is provided above the second screen plate (603).

2. The novel drum screen according to claim 1, characterized in that: The first sieve plate (601) has first sieve holes (605) distributed on it, and the second sieve plate (603) has second sieve holes (606) distributed on it. The sieve tube (602) is concentrically arranged with the first sieve holes (605) and the second sieve holes (606).

3. A novel drum screen according to claim 2, characterized in that: The anti-slip cover (604) is a semi-enclosed structure. There is a channel (607) between the anti-slip cover (604) and the second sieve plate (603). The channel (607) on all screening plates (6) is in the same direction.

4. A novel drum screen according to claim 1, characterized in that: The screening plates (6) are connected by connecting plates (608).

5. A novel drum screen according to claim 1, characterized in that: The rotating wheel (2) is rotatably connected to the base (1) through the bearing seat (3). The screen cylinder (5) is provided with rails (501) on both sides. The rails (501) contact the rotating wheel (2) to support the entire screen cylinder (5). The blocking wheel (7) is rotatably connected to the base (1) on the side of the rotating wheel (2). The blocking wheel (7) contacts the side of the rail (501).

6. A novel drum screen according to claim 5, characterized in that: The screen cylinder (5) is wrapped with a shell (8). The shell (8) is fixed to the base (1) on both sides. The base (1) has a material leakage port (101) at the bottom and the shell (8) has a discharge port (801) at the bottom. The material leakage port (101) and the discharge port (801) are connected.

7. A novel drum screen according to claim 1, characterized in that: The drive mechanism (4) includes a drive motor (401), a transmission rod (402) and a universal joint (403). The output shaft of the drive motor (401) is connected to the transmission rod (402) through the universal joint (403), and the transmission rod (402) is connected to the wheel (2) through the universal joint (403).

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