Adjustable vibrating screen

Abstract

The utility model discloses an adjustable vibrating screen which comprises a vibrating screen body and a bottom frame, a cavity is formed in the bottom frame, a plurality of screws extending to the position above the bottom frame are rotationally arranged in the cavity, the vibrating screen body is connected with the screws through a connecting mechanism, and the screws are connected through a linkage mechanism. A cavity is formed in the bottom frame, a driving motor connected with one screw is arranged in the cavity, a supporting block is arranged on the bottom wall of the bottom frame, a fixing shaft is fixedly arranged on the bottom frame, and a gear is rotationally arranged on the fixing shaft through a reset mechanism. Through the arrangement of the bottom frame, the screw rod, the lifting plate, the driving motor, the belt wheel, the belt and the like, the vibrating screen body is supported, the height of the vibrating screen body can be adjusted through cooperation of the multiple assemblies, after the height is reduced, the screen cloth in the vibrating screen body can be cleaned more conveniently, and the practicability of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to an adjustable vibrating screen. Background Art

[0002] Vibrating screen is a common screening equipment, which classifies and separates materials through the principle of vibration. The working principle of vibrating screen is to use the vibrator to generate vibration, so that the material moves quickly on the screen surface, so that fine particles can pass through the screen, while larger particles are blocked. Vibrating screens have many types and applications, such as in the mining, chemical, food processing and other industries for screening ores, powders, granules and other materials. They can be customized according to different needs and material characteristics, such as the size of the screen aperture, the adjustment of the vibration frequency, etc.

[0003] The mesh of the vibrating screen often gets clogged, and it needs to be cleaned to remove the clogged object. Common vibrating screens are supported by fixed-height support components, and cannot be lowered when cleaning the mesh clogs. Therefore, operators with short heights cannot clean them conveniently, and may need to use stool-like components to raise the height. Therefore, it is not only difficult to clean, but also has the disadvantage of a high risk of falling. In order to change the status quo and deal with the above problems, an adjustable vibrating screen is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an adjustable vibrating screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An adjustable vibrating screen comprises a vibrating screen body and a bottom frame, wherein a cavity is provided inside the bottom frame, and a plurality of screws extending to the top of the bottom frame are rotatably provided in the cavity, the vibrating screen body is connected to the screws through a connecting mechanism, and the plurality of screws are connected through a linkage mechanism, a driving motor connected to one of the screws is provided in the cavity, a supporting block is provided on the bottom wall of the bottom frame, a fixed shaft is fixed on the bottom frame, a gear is rotatably provided on the fixed shaft through a reset mechanism, a universal wheel is provided on the gear through a connecting frame, and the gear is connected to the vibrating screen body through a rotating mechanism.

[0007] Preferably, the connection mechanism comprises a lifting plate arranged on the outer wall of the vibration screen body, and the lifting plate is threadedly sleeved on the screw rod.

[0008] Preferably, the linkage mechanism comprises a pulley arranged on the screw rod, and two adjacent pulleys are connected by a belt.

[0009] Preferably, the reset mechanism comprises a fixed disk fixedly arranged on the fixed shaft, a torsion spring is connected between the fixed disk and the gear, and the torsion spring is sleeved outside the fixed shaft.

[0010] Preferably, the rotating mechanism comprises a rack arranged on the bottom wall of the vibration screen body, and the rack is arranged corresponding to the gear.

[0011] Preferably, an anti-dropping block for limiting the lifting plate is provided at the end of the screw rod, and the anti-dropping block is connected to the screw rod by means of a bolt assembly.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up the bottom frame, screw, lifting plate, driving motor, pulley and belt, the above components realize the support of the vibrating screen body, and the cooperation of multiple components can realize its height adjustment. After the height is lowered, it is easier to clean the internal screen, ensuring the practicality of the device.

[0014] 2. By setting fixed shafts, gears, connecting frames, universal wheels and racks, the screening machine body can unfold the universal wheels and rely on the universal wheels for support during the descent process. At this time, it is also convenient to move the equipment to a bright area for mesh cleaning, ensuring the cleaning effect.

[0015] 3. By setting the universal wheel to a flexible state that can be unfolded and stored, the universal wheel does not need to support the vibrating screen body for a long time, thereby avoiding its service life being reduced due to long-term downward pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the adjustable vibrating screen proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure viewed from above;

[0019] Figure 4 It is a schematic diagram of the structure of components such as pulleys in the cavity;

[0020] Figure 5 It is a structural schematic diagram of components such as the screw and the drive motor.

[0021] In the figure: 1 vibrating screen body, 2 bottom frame, 3 support block, 4 anti-slip block, 5 screw, 6 lifting plate, 7 fixed shaft, 8 fixed plate, 9 gear, 10 torsion spring, 11 connecting frame, 12 universal wheel, 13 rack, 14 cavity, 15 pulley, 16 belt, 17 driving motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5 The adjustable vibrating screen comprises a vibrating screen body 1 and a bottom frame 2. The screen in the vibrating screen body 1 vibrates, but the shell does not vibrate. It is a screening device in the prior art. Its specific working principle will not be described in detail here. For details, please refer to the prior art disclosure.

[0024] A cavity 14 is provided inside the bottom frame 2, and a plurality of screws 5 extending to the top of the bottom frame 2 are rotatably provided in the cavity 14. The vibrating screen body 1 is connected to the screws 5 through a connecting mechanism, and the plurality of screws 5 are connected through a linkage mechanism. A driving motor 17 connected to one of the screws 5 is provided in the cavity 14, a support block 3 is provided on the bottom wall of the bottom frame 2, a fixed shaft 7 is fixed on the bottom frame 2, a gear 9 is rotatably provided on the fixed shaft 7 through a reset mechanism, a universal wheel 12 is provided on the gear 9 through a connecting frame 11, and the gear 9 is connected to the vibrating screen body 1 through a rotating mechanism.

[0025] The connection mechanism includes a lifting plate 6 arranged on the outer wall of the vibration screen body 1, and the lifting plate 6 is threadedly sleeved on the screw 5. When the screw 5 rotates, the vibration screen body 1 is lifted and lowered on the screw 5 by the lifting plate 6, thereby realizing the lifting operation.

[0026] The linkage mechanism includes a pulley 15 disposed on the screw rod 5, and two adjacent pulleys 15 are connected by a belt 16, wherein two screw rods 5 are provided with two pulleys 15, and the other two screw rods 5 are provided with only one pulley 15. For details, please refer to Figure 5 As shown, the pulley 15 cooperates with the belt 16 to realize the power transmission of the driving motor 17. After the driving motor 17 is started, the four screws 5 can be rotated synchronously.

[0027] The reset mechanism includes a fixed plate 8 fixed on the fixed shaft 7, and a torsion spring 10 is connected between the fixed plate 8 and the gear 9. The torsion spring 10 is sleeved on the outside of the fixed shaft 7. With the help of the elastic potential energy provided by the torsion spring 10, the gear 9, the connecting frame 11 and the universal wheel 12 are stabilized in the absence of external force.

[0028] The rotating mechanism includes a rack 13 arranged on the bottom wall of the vibration screen body 1. The rack 13 is arranged corresponding to the gear 9. The rack 13 follows the vibration screen body 1 to descend. When the rack 13 descends to a certain height, it will mesh with the gear 9 and drive the gear 9 to rotate during the subsequent descent.

[0029] An anti-detachment block 4 for limiting the lifting plate 6 is provided at the end of the screw rod 5. The anti-detachment block 4 and the screw rod 5 are connected by a bolt assembly. The anti-detachment block 4 can be disassembled from the screw rod 5 by unscrewing the bolt assembly, and then the vibrating screen body 1 and the bottom frame 2 and other components can be separated by continuously rotating the screw rod 5.

[0030] When the utility model is in use, the bottom frame 2 and the screw 5 and other components realize the support of the vibrating screen body 1, wherein the screw 5 and other components realize the adjustment of the height of the vibrating screen body 1. When the mesh of the screen assembly in the vibrating screen body 1 is cleaned, the height of the vibrating screen body 1 can be appropriately adjusted to make it close to the ground for easy cleaning. Specifically: start the drive motor 17, the drive motor 17 can drive the screw 5 connected thereto to rotate, and the other three screws 5 are rotated by the pulley 15 and the belt 16. When the screw 5 rotates, the lifting plate 6 of its outer wall drives the vibrating screen body 1 to descend close to the ground to reduce the height. At the same time, the rack 13 descends and meshes with the gear 9, and then drives the gear 9 to rotate during the descent process. The gear 9 drives the connecting frame 11 and the universal wheel 12 to rotate. The above components finally rotate 90 degrees, from a horizontal state to a vertical state, and finally the entire equipment is supported by the universal wheel 12. The universal wheel 12 supports the convenient movement of the equipment. When cleaning, moving it to a place with brighter light can ensure that the cleaning is more thorough.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable vibrating screen, comprising a vibrating screen body (1) and a bottom frame (2), characterized in that: A cavity (14) is provided inside the bottom frame (2), and a plurality of screw rods (5) extending to the top of the bottom frame (2) are rotatably provided in the cavity (14); the vibrating screen body (1) is connected to the screw rods (5) via a connection mechanism, and the plurality of screw rods (5) are connected via a linkage mechanism; a driving motor (17) connected to one of the screw rods (5) is provided in the cavity (14); a support block (3) is provided on the bottom wall of the bottom frame (2); a fixed shaft (7) is fixed on the bottom frame (2); a gear (9) is rotatably provided on the fixed shaft (7) via a reset mechanism; a universal wheel (12) is provided on the gear (9) via a connection frame (11); and the gear (9) is connected to the vibrating screen body (1) via a rotation mechanism.

2. The adjustable vibrating screen according to claim 1, characterized in that: The connection mechanism comprises a lifting plate (6) arranged on the outer wall of the vibration screen body (1), and the lifting plate (6) is threadedly sleeved on the screw rod (5).

3. The adjustable vibrating screen according to claim 2, characterized in that: The linkage mechanism comprises a pulley (15) arranged on the screw rod (5), and two adjacent pulleys (15) are connected via a belt (16).

4. The adjustable vibrating screen according to claim 3, characterized in that: The reset mechanism comprises a fixed disk (8) fixedly arranged on a fixed shaft (7); a torsion spring (10) is connected between the fixed disk (8) and the gear (9); and the torsion spring (10) is sleeved outside the fixed shaft (7).

5. The adjustable vibrating screen according to claim 4, characterized in that: The rotating mechanism comprises a rack (13) arranged on the bottom wall of the vibration screen body (1), and the rack (13) is arranged corresponding to the gear (9).

6. The adjustable vibrating screen according to claim 5, characterized in that: An anti-slip block (4) for limiting the lifting plate (6) is provided at the end of the screw rod (5), and the anti-slip block (4) and the screw rod (5) are connected by means of a bolt assembly.

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