Linear vibrating screen capable of preventing screen holes from being blocked

Abstract

The utility model provides a linear vibrating screen capable of preventing screen holes from being blocked. The linear vibrating screen comprises a shell, a frame body, a screen frame, a plurality of elastic connecting pieces and a knocking assembly. A vibration cavity with a front opening is formed in the shell, a vibration motor is arranged on the shell, and the vibration motor is electrically connected with an external power supply; the frame body is arranged below the shell, and the shell is obliquely arranged on the frame body through a plurality of elastic connecting pieces which are low in front and high in rear; the elastic connecting piece is vertically arranged, the upper end of the elastic connecting piece is fixedly connected with the shell, the lower end of the elastic connecting piece is fixedly connected with the frame body, and the elastic connecting piece can stretch out and draw back in the vertical direction; the screen frame is obliquely and detachably connected into the vibration cavity, and the screen frame and the bottom of the shell are arranged in parallel in a spaced mode. According to the linear vibrating screen capable of preventing the screen holes from being blocked, a frame of the screen frame can be impacted through the knocking block 703 to enable the screen to vibrate, so that blocking materials in the screen holes of the screen fall out of the screen holes, the screening efficiency is improved, and the screen holes of the screen are prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screens, and in particular to a linear vibrating screen that can prevent screen hole clogging. Background Technology

[0002] A vibrating screen is a device that operates by utilizing the reciprocating rotary vibration generated by a vibrator. Vibrating screens are mainly classified into linear vibrating screens, circular vibrating screens, and high-frequency vibrating screens. According to the type of vibrator, vibrating screens can be classified into single-shaft vibrating screens and dual-shaft vibrating screens.

[0003] Linear vibrating screens utilize a vibrating motor as the vibration source, causing the material to be thrown up on the screen mesh and move forward in a straight line. The material enters the feed inlet of the screening machine evenly from the feeder, and through multiple layers of screens, several specifications of oversize and undersize materials are produced, which are discharged from their respective outlets. However, during use, the screen mesh may be blocked by material, generally requiring replacement or cleaning of the vibrating screen, which is quite troublesome and requires shutdown for maintenance. Utility Model Content

[0004] In order to solve the problem that the screen holes may be blocked by materials during use, as mentioned in the background technology, this utility model proposes a linear vibrating screen that can prevent screen hole blockage.

[0005] The technical solution of this utility model is as follows: it includes a shell, a frame, a sieve frame, multiple elastic connectors, and a striking component;

[0006] The housing has a front-opening vibration chamber, and a vibration motor is installed on the housing. The vibration motor is electrically connected to an external power source.

[0007] The frame is located below the shell, and the shell is inclined on the frame by multiple elastic connectors, with the front lower than the back;

[0008] The elastic connector is set vertically, with its upper end fixedly connected to the shell and its lower end fixedly connected to the frame. The elastic connector can extend and retract in the vertical direction.

[0009] The screen frame is tilted and detachably connected to the vibration chamber, and the screen frame is parallel and spaced apart from the bottom of the housing;

[0010] The striking assembly is mounted on the housing and can extend and retract in the left and right direction. The striking assembly includes a mounting frame, a connecting rod, a striking block, and a spring. The mounting frame is fixedly connected to the outer side of the housing and its position corresponds to the left and right sides of the screen frame frame. The connecting rod is slidably mounted inside the mounting frame. The striking block is fixedly connected to one end of the connecting rod near the housing. A clearance hole corresponding to the position of the mounting frame and being transparent is opened inside the housing. The striking block is located in the clearance hole. A spring is fixedly connected between the striking block and the inner wall of the mounting frame, and the spring is sleeved on the connecting rod.

[0011] Preferably, the striking assembly further includes a connecting block, which is disposed at the end of the connecting rod away from the housing. The connecting block is located outside the mounting bracket, and two pull rods are fixedly connected to the connecting block. The connecting block extends in the left-right direction, and the pull rods are fixed perpendicular to the connecting block in the extension direction of the connecting block.

[0012] Preferably, the connecting rod includes a slide cylinder and a rotating shaft. The slide cylinder is guided and slidably engaged with the mounting bracket. The rotating shaft is rotatably connected inside the slide cylinder. The slide cylinder and the rotating shaft are engaged in a stop-fitting engagement in the axial direction of the rotating shaft. The end of the rotating shaft away from the housing is fixedly connected to the connecting block. One end of the slide cylinder is fixedly connected to the striking block.

[0013] The striking assembly also includes two limiting brackets fixedly connected to the mounting bracket. The limiting brackets are horizontally arranged and have limiting grooves that are adapted to the pull rod. The two limiting brackets are positioned left and right respectively, and the connecting block is located between the two limiting brackets.

[0014] Preferably, the screen frame is provided with a locking port, the locking port is provided with a threaded structure adapted to the bolt, and the housing is provided with an insertion port corresponding to the left and right positions of the locking port for the bolt to pass through.

[0015] Preferably, the screen frame includes a primary screen frame and a secondary screen frame, both of which are detachably connected to the vibration chamber. The primary screen frame is located above the secondary screen frame, and locking openings are provided on both the left and right sides of the primary and secondary screen frames.

[0016] Preferably, two supports are fixedly connected to the rear side of the upper surface of the frame, with a crossbeam between the supports. Two elastic connectors are fixedly connected to the front side of the upper surface of the frame and the upper surface of the crossbeam, with corresponding left and right positions and arranged vertically.

[0017] The elastic connector includes a connecting frame and a vibrating screen spring. The upper end of the vibrating screen spring is fixedly connected to the connecting frame, and the connecting frame is fixedly connected to the housing.

[0018] Preferably, the top of the housing is fixedly connected to a plurality of support frames extending in the left-right direction, the plurality of support frames are spaced apart along the extension direction of the housing, the tops of the plurality of support frames form a mounting surface, and the vibration motor is fixedly mounted on the mounting surface.

[0019] Preferably, rollers are fixedly installed on the frame.

[0020] Preferably, a feeding rack is fixedly connected to the rear side of the housing, and a feeding port is provided on the rear side of the housing, which is installed in conjunction with the feeding rack.

[0021] Preferably, the feeding rack includes a feeding plate and a U-shaped baffle. The U-shaped baffle is fixedly connected to the feeding plate, and the U-shaped baffle has a bottom opening. The U-shaped baffle and the feeding plate are connected to form an orifice-shaped frame structure.

[0022] The bottom wall of the feed plate is flush with the bottom wall of the feed inlet, and the top wall of the U-shaped baffle is flush with the top wall of the feed inlet.

[0023] Advantages of this utility model:

[0024] 1. By striking the screen with the striking block, the screen frame is quickly subjected to additional kinetic energy impact, which causes the screen frame to vibrate rapidly. This causes the material clogging the screen mesh to fall downwards, reducing the number of times the machine needs to be stopped for cleaning.

[0025] The screen frame is detachable, allowing for thorough cleaning after prolonged use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0028] Figure 2 for Figure 1 A schematic diagram of the main sectional structure;

[0029] Figure 3 for Figure 1 A schematic diagram of the striking component structure;

[0030] Figure 4 for Figure 1 A schematic diagram illustrating the working principle of the tapping component.

[0031] In the diagram, 1 is the housing, 2 is the frame, 3 is the vibrating motor, 4 is the primary screen frame, 5 is the secondary screen frame, 6 is the elastic connector, 601 is the connecting frame, 602 is the vibrating screen spring, 7 is the striking assembly, 701 is the mounting frame, 702 is the slide cylinder, 703 is the striking block, 704 is the spring, 705 is the rotating shaft, 706 is the connecting block, 707 is the tie rod, 708 is the limit frame, 8 is the support frame, 9 is the feeding frame, 901 is the feeding plate, 902 is the U-shaped baffle, 10 is the feeding port, 11 is the locking port, 12 is the roller, 13 is the bracket, and 14 is the crossbeam. Detailed Implementation

[0032] 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.

[0033] Example 1: This example aims to propose a linear vibrating screen that can prevent screen hole clogging.

[0034] according to Figures 1-4 As shown, it includes a housing 1, a frame 2, a screen frame, multiple elastic connectors 6, and a striking assembly 7.

[0035] The housing 1 has a front-opening vibration chamber and a vibration motor 3 on the housing 1. The vibration motor 3 is existing technology and is electrically connected to an external power source. Multiple support frames 8 extending in the left and right directions are fixedly connected to the top of the housing 1. The multiple support frames 8 are spaced apart along the extension direction of the housing 1, and the tops of the multiple support frames 8 form a mounting surface. The vibration motor 3 is fixedly mounted on the mounting surface to disperse the impact force generated by the vibration motor 3 on the housing 1 when it vibrates.

[0036] The frame 2 is located below the housing 1, and the housing 1 is inclined on the frame 2 by multiple elastic connectors 6, with the front lower than the back. Two supports 13 are fixedly connected to the rear side of the upper surface of the frame 2, with a crossbeam 14 between the supports 13. Two elastic connectors 6 are fixedly connected to the front side of the upper surface of the frame 2 and the upper surface of the crossbeam 14, with the elastic connectors 6 being vertically arranged and corresponding to the left and right. The elastic connector 6 includes a connecting frame 601 and a vibrating screen spring 602. In this embodiment, the vibrating screen spring 602 uses existing technology and has a certain rigidity. The upper end of the vibrating screen spring 602 is fixedly connected to the connecting frame 601, and the lower end of the vibrating screen spring 602 is fixedly connected to the front side of the upper surface of the corresponding frame 2 and the upper surface of the crossbeam 14. The connecting frame 601 is fixedly connected to the housing 1, and rollers 12 are fixedly installed on the frame 2.

[0037] The screen frame is tilted and detachably connected to the vibration chamber. In this embodiment, the screen frame adopts existing technology. The screen frame includes a U-shaped frame and a screen mesh fixed inside the frame. The screen mesh has mesh holes and is made of woven metal wire. The screen frame is parallel and spaced apart from the bottom of the housing 1. The screen frame includes a primary screen frame 4 and a secondary screen frame 5. Both the primary screen frame 4 and the secondary screen frame 5 can be detachably connected to the vibration chamber. The primary screen frame 4 is located above the secondary screen frame 5. Locking ports 11 are opened on the left and right sides of the primary screen frame 4 and the secondary screen frame 5. The locking ports 11 have threaded structures that are compatible with bolts. The housing 1 has insertion holes corresponding to the left and right positions of the locking ports 11 for bolts to pass through. The primary screen frame 4 and the secondary screen frame 5 can be quickly disassembled and assembled by removing and installing bolts.

[0038] The striking component 7 is mounted on the housing 1. The striking component 7 includes a mounting bracket 701, a connecting rod, a striking block 703, and a spring 704. The mounting bracket 701 is fixedly connected to the outer side of the housing 1 and its position corresponds to the left and right sides of the screen frame. The connecting rod is slidably mounted inside the mounting bracket 701. The striking block 703 is provided at one end of the connecting rod near the housing 1. The housing 1 has a through clearance hole that corresponds to the position of the mounting bracket 701. The striking block 703 is located in the clearance hole. The spring 704 is fixedly connected between the striking block 703 and the inner wall of the mounting bracket 701, and the spring 704 is movably sleeved on the connecting rod.

[0039] The striking assembly also includes a connecting block 706, which is located at the end of the connecting rod away from the housing 1. The connecting block 706 is located outside the mounting bracket 701. Two pull rods 707 are fixedly connected to the connecting block 706. The connecting block 706 extends in the left-right direction, and the pull rods 707 are fixed perpendicular to the connecting block 706 in the extension direction of the connecting block 706.

[0040] The connecting rod includes a slide cylinder 702 and a rotating shaft 705. The slide cylinder 702 is guided and slidably engaged with the mounting bracket 701. The rotating shaft 705 is rotatably connected inside the slide cylinder 702. The slide cylinder 702 and the rotating shaft 705 are axially stopped in the rotating shaft 705. The slide cylinder 702 is provided with an inwardly extending annular protrusion and an annular groove that is slidably connected with the annular protrusion, so that when the rotating shaft 705 moves left and right, it drives the slide cylinder 702 to move left and right.

[0041] The end of the rotating shaft 705 away from the housing 1 is fixedly connected to the connecting block 706; one end of the slide cylinder 702 is fixedly connected to the striking block 703. The striking assembly 7 also includes two limiting frames 708 fixedly connected to the mounting bracket 701. The limiting frames 708 are horizontally arranged and have limiting grooves that are adapted to the pull rod 707. The two limiting frames 708 are positioned left and right respectively, and the connecting block 706 is located between the two limiting frames 708.

[0042] A feeding rack 9 is fixedly connected to the rear side of the housing 1. A feeding port 10 is provided on the rear side of the housing 1. The feeding port 10 is installed in conjunction with the feeding rack 9. The feeding rack 9 includes a feeding plate 901 and a U-shaped baffle 902. The U-shaped baffle 902 is fixedly connected to the feeding plate 901 and has a downward opening. The U-shaped baffle 902 and the feeding plate 901 are connected to form an orifice-shaped frame structure. The bottom wall of the feeding plate 901 is flush with the bottom wall of the feeding port 10, and the top wall of the U-shaped baffle 902 is flush with the top wall of the feeding port 10 to prevent material from splashing during feeding.

[0043] Operating principle: When the screen mesh becomes clogged, pull rod 707 is pulled away from housing 1. The movement of pull rod 707 causes connecting block 706 to move away from housing 1. The movement of connecting block 706 causes rotating shaft 705 to move. The movement of rotating shaft 705 causes sliding cylinder 702 to move. The movement of sliding cylinder 702 causes striking block 703 to move away from housing 1. When striking block 703 moves, it compresses spring 704. When spring 704 is compressed to its limit, pull rod 707 is released. Under the reset action of spring 704, striking block 703 quickly resets towards housing 1, causing striking block 703 to impact the screen frame, thereby causing the screen mesh inside the screen frame to vibrate, causing the clogged material inside the screen mesh to fall downwards.

[0044] When the screen frame needs to be disassembled, pull the lever 707 away from the housing 1. The connecting block 706 moves, causing the rotating shaft 705 to move. The rotating shaft 705 moves, causing the sliding cylinder 702 to move. The sliding cylinder 702 moves, causing the striking block 703 to move away from the housing 1. When the striking block 703 moves, it compresses the spring 704. Then, rotate the lever 707, causing the connecting block 706 to rotate, so that the rotating shaft 705 rotates in the sliding cylinder 702, causing the lever 707 to be locked in the limiting groove. Then, release the lever 707, so that the striking block 703 does not contact the frame of the screen frame. After limiting all the striking blocks 703 in the striking assembly 7 in the above manner, avoid the striking blocks 703 pressing against the screen frame. Then, remove the bolts to release the screen frame from the locking in the vibration chamber.

[0045] This allows the kinetic energy generated by striking the mesh of the screen frame without shutting down the machine to be transferred to the screen and the material clogging the mesh in a short time. This helps the material overcome the frictional force of the mesh. At the same time, the screen will produce a brief and rapid vibration after being struck, causing a rapid short-distance displacement change in the screen. This vibration can break the static friction and adhesion between the material particles, causing the material that was originally tightly packed or stuck together to loosen and pass through the mesh more easily. This allows the material clogging the mesh to be discharged, thus reducing the number of times the machine needs to be stopped for cleaning. After long-term use, the screen still needs to be thoroughly cleaned. The screen frame can be quickly disassembled and reassembled by removing the bolts to clean the screen.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A linear vibrating screen that is resistant to blinding, characterized in that: It includes a housing (1), a frame (2), a screen frame, multiple elastic connectors (6) and a striking assembly (7); The housing (1) has a front-opening vibration chamber inside, and the housing (1) is equipped with a vibration motor (3), which is electrically connected to an external power source. The frame (2) is located below the shell (1), and the shell (1) is inclined on the frame (2) with the front lower and the back higher through multiple elastic connectors (6); The elastic connector (6) is set vertically. The upper end of the elastic connector (6) is fixedly connected to the shell (1), and the lower end of the elastic connector (6) is fixedly connected to the frame (2). The elastic connector (6) can extend and retract in the vertical direction. The screen frame is tilted and detachably connected to the vibration chamber, and the screen frame is parallel and spaced apart from the bottom of the shell (1); The striking component (7) is mounted on the housing (1). The striking component (7) includes a mounting bracket (701), a connecting rod, a striking block (703), and a spring (704). The mounting bracket (701) is fixedly connected to the outer side of the housing (1) and its position corresponds to the left and right sides of the screen frame. The connecting rod is slidably provided inside the mounting bracket (701). A striking block (703) is provided at one end of the connecting rod near the housing (1). A clearance hole corresponding to the position of the mounting bracket (701) and being transparent is provided inside the housing (1). The striking block (703) is located inside the clearance hole. A spring (704) is fixedly connected between the striking block (703) and the inner wall of the mounting bracket (701), and the spring (704) is sleeved on the connecting rod.

2. A linear vibrating screen with anti-clogging of screen holes according to claim 1, characterized in that: The striking assembly also includes a connecting block (706), which is located at the end of the connecting rod away from the housing (1). The connecting block (706) is located outside the mounting bracket (701). Two pull rods (707) are fixedly connected to the connecting block (706). The connecting block (706) extends in the left-right direction, and the pull rods (707) are fixed perpendicular to the connecting block (706) in the extension direction of the connecting block (706).

3. A linear vibrating screen with anti-clogging of screen holes according to claim 2, characterized in that: The connecting rod includes a slide cylinder (702) and a rotating shaft (705). The slide cylinder (702) is guided and slidably engaged with the mounting bracket (701). The rotating shaft (705) is rotatably connected inside the slide cylinder (702). The slide cylinder (702) and the rotating shaft (705) are engaged in axial stop engagement with the rotating shaft (705). The end of the rotating shaft (705) away from the housing (1) is fixedly connected to the connecting block (706). One end of the slide cylinder (702) is fixedly connected to the striking block (703). The striking assembly (7) also includes two limiting brackets (708) fixedly connected to the mounting bracket (701). The limiting brackets (708) are horizontally arranged and have limiting grooves adapted to the pull rod (707). The two limiting brackets (708) are positioned left and right respectively, and the connecting block (706) is located between the two limiting brackets (708).

4. The linear vibrating screen of claim 1, wherein: The screen frame is provided with a locking port (11), the locking port (11) is provided with a threaded structure that is compatible with the bolt, and the housing (1) is provided with a slot for the bolt to pass through, which is located to the left and right of the locking port (11).

5. A linear vibrating screen with anti-clogging of screen holes according to claim 4, characterized in that: The screen frame includes a primary screen frame (4) and a secondary screen frame (5). Both the primary screen frame (4) and the secondary screen frame (5) can be detachably connected to the vibration chamber. The primary screen frame (4) is located above the secondary screen frame (5). Locking ports (11) are provided on the left and right sides of both the primary screen frame (4) and the secondary screen frame (5).

6. A linear vibrating screen with anti-clogging of screen openings according to any of claims 1-5, characterized in that: The upper surface of the frame (2) is fixedly connected to two supports (13) that are corresponding to each other on the left and right. A crossbeam (14) is provided between the supports (13). The upper surface of the frame (2) and the upper surface of the crossbeam (14) are both fixedly connected to two elastic connectors (6) that are corresponding to each other on the left and right and are arranged vertically. The elastic connector (6) includes a connecting frame (601) and a vibrating screen spring (602). The upper end of the vibrating screen spring (602) is fixedly connected to the connecting frame (601), and the connecting frame (601) is fixedly connected to the housing (1).

7. A linear vibrating screen with anti-clogging of screen openings according to any one of claims 1-5, characterized in that: The top of the housing (1) is fixedly connected to a plurality of support frames (8) extending in the left and right directions. The plurality of support frames (8) are spaced apart along the extension direction of the housing (1). The top of the plurality of support frames (8) forms a mounting surface. The vibration motor (3) is fixedly mounted on the mounting surface.

8. A linear vibrating screen with anti-clogging of screen openings according to any one of claims 1-5, characterized in that: Rollers (12) are fixedly installed on the frame (2).

9. A linear vibrating screen with anti-clogging of screen openings according to any one of claims 1-5, characterized in that: The rear side of the housing (1) is fixedly connected to the feed rack (9), and the rear side of the housing (1) is provided with a feed port (10), which is installed in conjunction with the feed rack (9).

10. A linear vibrating screen according to claim 9, wherein: The feeding rack (9) includes a feeding plate (901) and a U-shaped baffle (902). The U-shaped baffle (902) is fixedly connected to the feeding plate (901), and the U-shaped baffle (902) has a bottom opening. The U-shaped baffle (902) and the feeding plate (901) are connected to form an orifice frame structure. The bottom wall of the feed plate (901) is flush with the bottom wall of the feed inlet (10), and the top wall of the U-shaped baffle (902) is flush with the top wall of the feed inlet (10).

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