Low-loss aggregate screening line

Abstract

The utility model relates to the technical field of aggregate screening, and discloses a low-loss aggregate screening line. The low-loss aggregate screening line comprises a supporting frame, a limiting pipe is fixedly installed above the supporting frame, a limiting bearing is installed in the limiting pipe in an embedded mode, a connecting ring is movably installed in the limiting pipe, a limiting cover is movably installed at the rear end of the limiting pipe, and a feeding pipe is movably installed at the rear end of the limiting cover; a fixing frame is fixedly installed on the outer side of a feeding pipe, due to the influence of the gravity of aggregate, when the metal net rotates, the aggregate can move and is kept below the metal net, so that relative displacement is generated between the aggregate and the metal net, and the aggregate capable of passing through screen holes can enter a receiving pipe through a hole opening structure below a limiting pipe; and the aggregate is driven by the auger to move backwards to achieve the screening effect, so that the aggregate can be prevented from continuously impacting the screen mesh during screening, and the loss of the aggregate during screening is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aggregate screening technology, specifically a low-loss aggregate screening line. Background Technology

[0002] The process of separating bulk materials into different particle sizes by passing them through one or more screens is called screening. A screening machine is a vibrating screening device that uses the relative motion between the bulk material and the screen surface to allow some particles to pass through the screen openings, separating materials such as sand, gravel, and crushed stone into different grades according to particle size. The screening process is generally continuous. After the raw material is fed onto the screening machine (referred to as the screen), materials smaller than the screen opening size pass through the screen openings and are called undersize products; materials larger than the screen opening size are continuously discharged from the screen surface and are called oversize products.

[0003] The existing Chinese utility model patent with publication number CN222174829U discloses a sand and gravel aggregate grading and screening device, including a box and a screening mechanism. The screening mechanism is located inside the box. The screening mechanism includes a motor fixedly installed on the top of the box. The output shaft of the motor is fixedly connected to a telescopic rod. A fixed frame is fixedly connected to the bottom of the telescopic rod. A connecting frame is slidably connected to the inner side of the fixed frame. A screening screen is fixedly connected to the bottom of the connecting frame. A fixed plate is fixedly connected to the inner wall of the box below the fixed frame. This sand and gravel aggregate grading and screening device, with its screening mechanism, screens the sand and gravel layer by layer through a screening screen and a filter screen. The connecting frame and limiting frame facilitate the disassembly of the screening screen and filter screen for cleaning and replacement. Simultaneously, the motor drives the telescopic rod to rotate, which in turn drives the fixed frame to rotate, causing the material to impact and rub during the rotating screening process, thus accelerating the screening speed.

[0004] In existing screening devices, materials that cannot pass through the screen holes may remain above the screen and cannot be discharged normally. At the same time, aggregates that cannot be discharged will accumulate above the screen, blocking some screen holes and affecting subsequent screening efficiency. In addition, in existing vibrating screening devices, the screen will constantly collide with the aggregates during use, which may crush the aggregates and cause losses. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a low-loss aggregate screening line, which has the advantages of preventing materials from remaining on the screen and affecting screening efficiency, and reducing aggregate loss, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a low-loss aggregate screening line, comprising: a support frame, a limiting tube fixedly installed above the support frame, a limiting bearing fitted inside the limiting tube, a connecting ring movably installed inside the limiting tube, a limiting cover movably installed at the rear end of the limiting tube, a feed pipe movably installed at the rear end of the limiting cover, a fixing frame fixedly installed on the outer side of the feed pipe, a driving ring movably installed at the front end of the limiting tube, a toothed ring fixedly installed on the outer side of the driving ring, and a connecting ring fixedly installed on the outer side of the front end of the driving ring. A connecting bearing is attached to the upper part of the limiting tube, and a drive motor is fixedly installed above it. A gear is fixedly installed on the outer side of the drive motor shaft. A discharge port is fixedly installed on the outer side of the connecting bearing. A metal mesh is fixedly installed inside the drive ring, and a baffle is fixedly installed inside the metal mesh. A baffle is fixedly installed below the limiting tube, and a receiving pipe is fixedly installed below the limiting tube. An auger is movably installed inside the receiving pipe, and a limiting frame is movably installed at the rear end of the auger. A drive motor is fixedly installed below the discharge port. The support frame can support the limiting tube.

[0009] As a preferred embodiment of this utility model, the support frame is symmetrically installed at the front and rear ends of the limiting tube with the center of the limiting tube as the reference, the limiting bearing is installed at equal distances at the front and rear ends inside the limiting tube, and the connecting ring is rotatably connected to the limiting tube through the limiting bearing; the limiting tube can restrict the position of the limiting bearing.

[0010] As a preferred embodiment of this utility model, the limiting cover is rotatably connected to the limiting tube via a limiting bearing, a 90-degree angle is provided below the feed tube, the front end of the feed tube is rotatably connected to the limiting cover, and the drive ring is rotatably connected to the limiting tube via a limiting bearing; the feed tube facilitates the entry of aggregate into the interior of the metal mesh.

[0011] As a preferred embodiment of this utility model, the toothed ring and the gear mesh with each other, the discharge port is rotatably connected to the drive ring through a connecting bearing, and the metal mesh is tubular; the connecting bearing can prevent the drive ring from affecting the discharge port when it rotates.

[0012] As a preferred embodiment of this utility model, the front end of the metal mesh is fixedly connected to the inner wall of the drive ring, and the rear end of the metal mesh is fixedly connected to the inner wall of the limiting cover. The middle section of the metal mesh is fixedly connected to the inner wall of the connecting ring. The metal mesh is capable of screening aggregates.

[0013] As a preferred technical solution of this utility model, the baffle is spiral-shaped and is installed in an "X" shape on the inner wall of the metal mesh with the center of the metal mesh as the reference. The auger is rotatably connected to the limiting frame. The baffle can drive the aggregate to move.

[0014] As a preferred technical solution of this utility model, the outer side of the limiting frame is fixedly connected to the inner wall of the receiving pipe, and the front end of the auger passes through the receiving pipe and is fixedly connected to the rotating shaft of the drive motor; the auger can drive the aggregate after screening to move.

[0015] Compared with the prior art, this utility model provides a low-loss aggregate screening line, which has the following characteristics:

[0016] Beneficial effects:

[0017] 1. This utility model utilizes a tubular metal mesh. The front end of the metal mesh is fixedly connected to the inner wall of the drive ring, and the rear end is fixedly connected to the inner wall of the limiting cover. The middle section of the metal mesh is fixedly connected to the inner wall of the connecting ring. The connecting ring, the limiting cover, and the drive ring are rotatably connected to the limiting tube via a limiting bearing. The toothed ring on the outer side of the drive ring meshes with the gear on the outer side of the drive motor shaft. When the drive motor drives the gear to rotate, the gear can drive the toothed ring to rotate, which in turn drives the metal mesh to rotate via the drive ring. Due to the influence of the aggregate's gravity, the aggregate will move and remain below the metal mesh when the metal mesh rotates, thus creating a relative displacement between the aggregate and the metal mesh. Aggregate that can pass through the screen holes will enter the receiving tube through the opening structure below the limiting tube and move backward under the drive of the auger to achieve the screening effect. This method can prevent the aggregate from constantly hitting the screen during screening and reduce aggregate loss during screening.

[0018] 2. This utility model features a spiral-shaped baffle fixedly installed inside the metal mesh. When the drive motor rotates the gear, the gear rotates the gear ring, which in turn drives the metal mesh to rotate. Simultaneously, the baffle inside the metal mesh moves the material towards the discharge port as the metal mesh rotates, preventing the material from remaining inside the metal mesh. This method avoids aggregates that cannot pass through the screen holes from remaining above the metal mesh, thus preventing aggregate accumulation and affecting screening efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connecting ring installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the baffle installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the auger installation structure of this utility model;

[0023] The components are as follows: 1. Support frame; 11. Limiting tube; 12. Limiting bearing; 13. Connecting ring; 14. Limiting cover; 15. Feed pipe; 16. Fixing frame; 17. Drive ring; 18. Gear ring; 19. Connecting bearing; 110. Drive motor; 111. Gear; 112. Discharge port; 113. Metal mesh; 114. Baffle; 115. Receiving pipe; 116. Screwdriver; 117. Limiting frame; 118. Drive motor. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Please see Figure 1 - Figure 4In this embodiment, a low-loss aggregate screening line includes: a support frame 1; a limiting tube 11 is fixedly installed above the support frame 1; a limiting bearing 12 is fitted inside the limiting tube 11; a connecting ring 13 is movably installed inside the limiting tube 11; a limiting cover 14 is movably installed at the rear end of the limiting tube 11; a feed pipe 15 is movably installed at the rear end of the limiting cover 14; a fixing frame 16 is fixedly installed on the outside of the feed pipe 15; a driving ring 17 is movably installed at the front end of the limiting tube 11; a toothed ring 18 is fixedly installed on the outside of the driving ring 17; and a connecting bearing 19 is fixedly installed on the outside of the front end of the driving ring 17. A drive motor 110 is fixedly installed above the pipe 11. A gear 111 is fixedly installed on the outside of the shaft of the drive motor 110. A discharge port 112 is fixedly installed on the outside of the connecting bearing 19. A metal mesh 113 is fixedly installed inside the drive ring 17. A baffle 114 is fixedly installed inside the metal mesh 113. A baffle 114 is fixedly installed below the limiting pipe 11. A receiving pipe 115 is fixedly installed below the limiting pipe 11. An auger 116 is movably installed inside the receiving pipe 115. A limit frame 117 is movably installed at the rear end of the auger 116. A drive motor 118 is fixedly installed below the discharge port 112.

[0028] The support frame 1 is symmetrically installed at both ends of the limiting tube 11 with the center of the limiting tube 11 as the reference. The limiting bearings 12 are equidistantly installed inside the limiting tube 11. The connecting ring 13 is rotatably connected to the limiting tube 11 through the limiting bearings 12. The limiting cover 14 is rotatably connected to the limiting tube 11 through the limiting bearings 12. A 90-degree angle is provided below the feed pipe 15. The front end of the feed pipe 15 is rotatably connected to the limiting cover 14. The drive ring 17 is rotatably connected to the limiting tube 11 through the limiting bearings 12. The gear ring 18 meshes with the gear 111. The discharge port 112 is connected to the drive ring 111 through the connecting bearing 19. The rotating rings 17 are rotatably connected. The metal mesh 113 is tubular. The front end of the metal mesh 113 is fixedly connected to the inner wall of the driving ring 17, and the rear end of the metal mesh 113 is fixedly connected to the inner wall of the limiting cover 14. The middle section of the metal mesh 113 is fixedly connected to the inner wall of the connecting ring 13. The baffle 114 is spiral-shaped and is installed in an "X" shape on the inner wall of the metal mesh 113 with the center of the metal mesh 113 as the reference. The auger 116 and the limiting frame 117 are rotatably connected. The outer side of the limiting frame 117 is fixedly connected to the inner wall of the receiving pipe 115. The front end of the auger 116 passes through the receiving pipe 115 and is fixedly connected to the rotating shaft of the drive motor 118.

[0029] Specifically, the support frame 1 can limit the position of the limiting tube 11. The limiting tube 11 is rotatably connected to the connecting ring 13, the limiting cover 14, and the drive ring 17 through the limiting bearing 12. The metal mesh 113 is installed inside the limiting tube 11 through the connecting ring 13, the limiting cover 14, and the drive ring 17. The connecting ring 13 can limit the position of the metal mesh 113. The opening structure at the rear end of the limiting cover 14 can facilitate the entry of aggregate into the interior of the metal mesh 113. A gear ring 18 is fixedly installed on the outside of the drive ring 17. The upper part of the gear ring 18 is connected to the gear 111 on the outside of the shaft of the transmission motor 110. When the transmission motor 110 drives the gear 111 to rotate, the gear 111 will drive the gear ring 18 to rotate, thereby driving the metal mesh 113 to rotate through the drive ring 17. The discharge port 112 is connected to the connecting bearing 12. 9 and drive ring 17 form a rotatable connection to prevent drive ring 17 from rotating the discharge port 112 when rotating. The discharge port 112 can facilitate the discharge of aggregates that cannot pass through the metal mesh 113. The baffle 114 inside the metal mesh 113 can move the material towards the discharge port 112 while the metal mesh 113 rotates, preventing the material from staying inside the metal mesh 113. The limiting tube 11 is provided with an opening structure that fits into the receiving tube 115 directly below, so that the aggregates that can pass through the screen holes of the metal mesh 113 can enter the interior of the receiving tube 115. The receiving tube 115 can restrict the material to keep in contact with the auger 116, so that the auger 116 can move the aggregates backward. The drive motor 118 can drive the auger 116 to rotate.

[0030] In use, the metal mesh 113 is tubular. The front end of the metal mesh 113 is fixedly connected to the inner wall of the drive ring 17, and the rear end of the metal mesh 113 is fixedly connected to the inner wall of the limiting cover 14. The middle section of the metal mesh 113 is fixedly connected to the inner wall of the connecting ring 13. The connecting ring 13, the limiting cover 14, and the drive ring 17 are rotatably connected to the limiting tube 11 via the limiting bearing 12. The upper part of the toothed ring 18 on the outer side of the drive ring 17 meshes with the gear 111 on the outer side of the drive motor 110 shaft. When the drive motor 110 drives the gear 111 to rotate, the gear 111 can drive the toothed ring 18 to rotate, which in turn drives the metal mesh 113 to rotate via the drive ring 17. Due to the influence of aggregate gravity, the aggregate will move and remain below the metal mesh 113 when the metal mesh 113 rotates, thus creating a relative displacement between the aggregate and the metal mesh 113. This allows the aggregate that can pass through the sieve holes to be... The material enters the receiving pipe 115 through the opening structure below the limiting pipe 11 and moves backward under the drive of the auger 116 to achieve the screening effect. This method can avoid the aggregate from constantly hitting the screen during screening and reduce the loss of aggregate during screening. The baffle 114 is spiral and is fixedly installed inside the metal mesh 113. When the drive motor 110 drives the gear 111 to rotate, the gear 111 will drive the gear ring 18 to rotate, thereby driving the metal mesh 113 to rotate through the drive ring 17. At the same time, the baffle 114 inside the metal mesh 113 can drive the material to rotate around the rotation axis of the metal mesh 113 while moving the material towards the discharge port 112, avoiding the material from staying inside the metal mesh 113. This method can prevent aggregate that cannot pass through the screen holes from staying above the metal mesh 113, causing aggregate accumulation and affecting screening efficiency.

[0031] 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 low-loss aggregate screening line, characterized by, Include: Support frame (1), the upper fixed installation of support frame (1) is installed in the limit pipe (11), the inside of limit pipe (11) is installed in the limit bearing (12), the inside of limit pipe (11) is installed with the connecting ring (13), the rear end of limit pipe (11) is installed with the limit cover (14), the rear end of limit cover (14) is installed with the inlet pipe (15), the outside of inlet pipe (15) is fixedly installed with the fixed frame (16), the front end of limit pipe (11) is installed with the drive ring (17), the outside of drive ring (17) is fixedly installed with the tooth ring (18), the outside of drive ring (17) front end is fixedly installed with the connecting bearing (19), the upper of limit pipe (11) is fixedly installed with the transmission motor (110), the outside of transmission motor (110) rotating shaft is fixedly installed with the gear (111), the outside of connecting bearing (19) is fixedly installed with the discharge port (112), the inside of drive ring (17) is fixedly installed with the metal screen (113), the inside of metal screen (113) is fixedly installed with the baffle (114), the lower of limit pipe (11) is fixedly installed with the baffle (114), the lower of limit pipe (11) is fixedly installed with the receiving pipe (115), the inside of receiving pipe (115) is installed with the auger (116), the rear end of auger (116) is installed with the limit frame (117), the lower of discharge port (112) is fixedly installed with the drive motor (118).

2. The low-loss aggregate screening line according to claim 1, wherein: The support frame (1) is symmetrically installed on the front and rear ends of the limit pipe (11) with the center of the limit pipe (11) as the reference, the limit bearings (12) are equidistantly installed inside the limit pipe (11), and the connecting ring (13) is rotatably connected between the limit bearings (12) and the limit pipe (11).

3. The low-loss aggregate screening line according to claim 1, wherein: The limit cover (14) is rotatably connected between the limit bearings (12) and the limit pipe (11), the inlet pipe (15) is provided with a ninety-degree corner, the front end of the inlet pipe (15) is rotatably connected with the limit cover (14), and the drive ring (17) is rotatably connected between the limit bearings (12) and the limit pipe (11).

4. The low-loss aggregate screening line according to claim 1, wherein: The tooth ring (18) is meshed with the gear (111), the discharge port (112) is rotatably connected between the connecting bearing (19) and the drive ring (17), and the metal screen (113) is tubular.

5. The low-loss aggregate screening line according to claim 1, wherein: The front end of the metal net (113) is fixedly connected with the inner wall of the driving ring (17), the rear end of the metal net (113) is fixedly connected with the inner wall of the limiting cover (14), and the middle section of the metal net (113) is fixedly connected with the inner wall of the connecting ring (13).

6. The low-loss aggregate screening line of claim 1, wherein: The baffle (114) is in a spiral shape, the baffle (114) is installed on the inner wall of the metal net (113) in an "X" shape with the center of the metal net (113) as a reference, and the auger (116) and the limiting frame (117) are rotationally connected.

7. The low-loss aggregate screening line of claim 1, wherein: The outer side of the limiting frame (117) is fixedly connected with the inner wall of the receiving pipe (115), and the front end of the auger (116) penetrates through the receiving pipe (115) and is fixedly connected with the rotating shaft of the driving motor (118).

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