Vibrating screen discharging fineness modulus adjustable device

Abstract

The utility model relates to the technical field of vibrating screens, in particular to a vibrating screen discharging fineness modulus adjustable device which comprises a box body, and the box body comprises an outer box body. Through the arrangement of the screen frame, when materials are screened by the second screen mesh, the materials meeting the requirements of the second screen mesh can fall off through the holes of the second screen mesh and can be collected through the finished product collecting hopper, and the materials discharged through the surface of the second screen mesh can be blocked by the screen frame and screened again through the screen holes. Meanwhile, the three sets of screen frames are arranged, the sizes of the screen holes formed in the three sets of screen frames are different, the positions of the screen frames can be adjusted by rotating the adjusting wrench and cooperating with the effect of the bolts, and therefore materials can be screened through the screen frames with the different screen holes during discharging; therefore, the fineness modulus of the discharged material can be flexibly controlled, and the requirements of different processes on the material granularity can be better met.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, specifically to a vibrating screen discharge adjustable fineness modulus device. Background Technology

[0002] A vibrating screen is a highly efficient screening device that uses a vibrating screen mesh to quickly separate and filter materials on the screen surface. A vibrating screen mainly consists of a vibrating motor, screen box, screen mesh, and damping springs. During operation, the vibrating motor drives the screen box to vibrate, causing the material to tumble and jump on the screen surface, thus achieving the purpose of separation and screening. Vibrating screens are widely used in various industrial production fields, such as mining, chemical, and food industries, to improve production efficiency, reduce production costs, improve product quality, and meet environmental protection requirements. Fineness modulus is a comprehensive index characterizing the coarseness of aggregates (such as sand). It is a dimensionless value calculated based on the content of particles of different sizes through standard sieve tests. Fineness modulus is commonly used to evaluate the particle size distribution of sand, reflecting the proportion of fine, medium, and coarse particles. A larger fineness modulus value indicates a coarser aggregate particle size; a smaller value indicates a finer aggregate particle size. In order to control the particle size distribution of materials after screening and ensure that they meet specific production and quality requirements, the fineness modulus of the materials is usually controlled.

[0003] In existing technologies, when screening materials using a vibrating screen, the material is usually tumbled and jumped on the screen by the action of a vibrating motor, thus achieving vibratory screening. Since the screen is set on the vibrating screen, the size of its filter holes is generally fixed. In addition, the screen cannot be easily replaced during screening, which means that only materials with a fixed particle size can generally be screened out. Consequently, it is not possible to flexibly control the fineness modulus of the output to meet the particle size requirements of different processes. Therefore, in order to solve the above problems, a vibrating screen output adjustable fineness modulus device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a device for adjusting the fineness modulus of the output material of a vibrating screen, in order to solve the problem mentioned in the background art that, since the screen is set on the vibrating screen, the size of its filter holes is generally fixed, and the screen cannot be flexibly replaced during screening, it can only screen out materials with a fixed particle size, and thus cannot flexibly control the fineness modulus of the output material to meet the particle size requirements of different processes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vibrating screen discharge adjustable fineness modulus device, comprising a housing, the housing comprising an outer housing, a screen box disposed on the inner side of the outer housing, a first screen fixedly connected to the inner surface of the screen box, and a second screen fixedly connected to the inner surface of the screen box.

[0006] An adjustment mechanism is provided on the inner side of the outer casing. The adjustment mechanism includes a rotating rod, which is movably connected to the inner side of the outer casing. A turntable is fixedly connected to the surface of the rotating rod. A screen frame is provided on the inner side of the turntable. Screen holes are opened on the inner side of the screen frame. An adjustment wrench is fixedly connected to the surface of the rotating rod. A bolt is movably connected to the inner side of the adjustment wrench. A finished product collection hopper is provided on the inner side of the outer casing.

[0007] Preferably, the sieve frames are arranged in three groups inside the turntable, and the sieve holes are evenly distributed inside the sieve frames.

[0008] Preferably, the adjusting wrench is fixed to the outer casing by bolts, and the finished product collection hopper is located at the bottom end of the second screen.

[0009] Preferably, a replacement mechanism is provided on the inner side of the turntable. The replacement mechanism includes a mounting block, which is fixedly connected to the surface of the screen frame. An installation groove is provided on the inner side of the turntable, and a movable groove is provided on the inner side of the mounting block. A lever is movably connected to the inner side of the movable groove, and an insert is fixedly connected to the surface of the lever. A slot is provided on the inner wall of the mounting groove, and a fixing rod is fixedly connected to the inner wall of the movable groove. A spring is fixedly connected to the surface of the lever.

[0010] Preferably, the insert is movable inside the movable slot, the insert is fixedly connected to the lever in three groups, and the slot is opened in three groups on the inner wall of the mounting slot.

[0011] Preferably, the lever and the fixed lever are movably connected, one end of the spring is fixedly connected to the movable groove, and the other end of the spring is fixedly connected to the lever.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing the screen frames, materials that meet the requirements of the second screen can fall through the screen's holes and be collected in the finished product hopper. Materials discharged through the second screen surface are blocked by the screen frames and screened again through the screen holes, ensuring thorough screening. The screen frames are arranged in three groups with different screen hole sizes. By rotating the adjusting wrench and using bolts, the position of the screen frames can be adjusted. This allows for flexible control of the fineness modulus of the output material, better meeting the particle size requirements of different processes.

[0014] By moving the lever inside the movable slot and utilizing the elasticity of the spring, the insert block can move accordingly and engage or disengage with the slot. This allows for the fixing and disassembly of the screen frame and turntable, facilitating the replacement of the screen frame. During screening, screen frames with different screen hole sizes can be flexibly switched, resulting in more flexible adjustment of the fineness modulus of the output material. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front sectional view of a portion of the structure of the screen frame and the finished product collection hopper of this utility model;

[0017] Figure 3 This is a partial side sectional view of the sieve frame and adjusting wrench of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Outer casing; 11. Screen box; 12. First screen; 13. Second screen; 2. Rotating rod; 21. Turntable; 22. Screen frame; 23. Screen hole; 24. Adjusting wrench; 25. Bolt; 26. Finished product collection hopper; 3. Mounting block; 31. Mounting groove; 32. Movable groove; 33. Lever; 34. Insert block; 35. Slot; 36. Fixing rod; 37. Spring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 One embodiment provided by this utility model:

[0022] A vibrating screen discharge adjustable fineness modulus device includes a housing, the housing includes an outer housing 1, a screen box 11 is arranged inside the outer housing 1, a first screen 12 is fixedly connected to the inner surface of the screen box 11, and a second screen 13 is fixedly connected to the inner surface of the screen box 11. By setting the first screen 12 and the second screen 13, materials of different particle sizes can be screened out.

[0023] An adjustment mechanism is provided inside the outer casing 1. The adjustment mechanism includes a rotating rod 2, which is movably connected to the inside of the outer casing 1. A turntable 21 is fixedly connected to the surface of the rotating rod 2. A screen frame 22 is provided inside the turntable 21. Screen holes 23 are opened inside the screen frame 22. An adjustment wrench 24 is fixedly connected to the surface of the rotating rod 2. A bolt 25 is movably connected to the inside of the adjustment wrench 24. A finished product collection hopper 26 is provided inside the outer casing 1. By rotating the adjustment wrench 24, the rotating rod 2 can drive the turntable 21 to rotate, and the screen frame 22 will rotate accordingly. This allows the material discharged from the surface of the second screen 13 to be screened again through different screen frames 22. This enables the fineness modulus of the material to be controlled as needed, ensuring the screening effect.

[0024] Furthermore, the screen frames 22 are arranged in three groups inside the turntable 21, and the screen holes 23 are evenly distributed inside the screen frames 22. The screen frames 22 are arranged in three groups, and the screen holes 23 in the three groups of screen frames 22 are of different sizes. Thus, by adjusting the position of the screen frames 22, the fineness modulus of the material can be adjusted during discharge.

[0025] Furthermore, the adjusting wrench 24 is fixed to the outer casing 1 by bolts 25, and the finished product collection hopper 26 is set at the bottom of the second screen 13. Through the setting of the finished product collection hopper 26, the material screened by the second screen 13 can be collected.

[0026] Furthermore, a replacement mechanism is provided on the inner side of the turntable 21. The replacement mechanism includes a mounting block 3, which is fixedly connected to the surface of the screen frame 22. An installation groove 31 is provided on the inner side of the turntable 21, and a movable groove 32 is provided on the inner side of the mounting block 3. A lever 33 is movably connected to the inner side of the movable groove 32, and an insert block 34 is fixedly connected to the surface of the lever 33. A slot 35 is provided on the inner wall of the mounting groove 31, and a fixing rod 36 is fixedly connected to the inner wall of the movable groove 32. A spring 37 is fixedly connected to the surface of the lever 33. The fixing rod 36 facilitates the lever 33 to drive the insert block 34 to move stably inside the movable groove 32, thereby realizing the insertion and separation of the insert block 34 and the slot 35.

[0027] Furthermore, the insert 34 is movable inside the movable groove 32. The insert 34 is fixedly connected to the lever 33 in three groups. The slots 35 are opened in three groups on the inner wall of the mounting groove 31. The insert 34 is movable and can be inserted and separated from the slots 35, which facilitates the fixing and disassembly of the screen frame 22 and the turntable 21, thereby making it easy to remove the screen frame 22 and replace it with a screen frame 22 with different screen holes 23.

[0028] Furthermore, the lever 33 and the fixed rod 36 are movably connected, one end of the spring 37 is fixedly connected to the movable groove 32, and the other end of the spring 37 is fixedly connected to the lever 33. By setting the spring 37, the lever 33 can be reset, thereby enabling the insertion of the insert block 34 and the slot 35, which facilitates the fixing of the screen frame 22 and the turntable 21.

[0029] Working principle: During use, the screen frame 22 can receive and block the material discharged from the surface of the second screen 13. When the material passes through the screen frame 22, it will be screened again by the screen holes 23. By turning the bolt 25, the adjusting wrench 24 can be released. Then, by rotating the adjusting wrench 24, the rotating rod 2 can drive the turntable 21 to rotate under the action of the adjusting wrench 24, thereby adjusting the position of the screen frame 22. By rotating the corresponding screen frame 22 to the bottom of the second screen 13 and fixing the adjusting wrench 24 with the bolt 25, the material can be screened again through the screen holes 23 of different sizes, thereby controlling the fineness modulus of the output material and facilitating the collection of the material into the finished product collection hopper 26.

[0030] By pulling the lever 33, the lever 33 moves inside the movable groove 32, allowing the lever 33 to move on the surface of the fixed rod 36 and drive the insert block 34 to move. This causes the insert block 34 to separate from the slot 35, at which point the spring 37 is in a contracted state, allowing the mounting block 3 to be pulled out from the mounting groove 31, thus removing the screen frame 22. When it is necessary to replace the screen frame 22 with a different screen hole 23, the mounting block 3 is inserted into the inside of the mounting groove 31, and by releasing the lever 33, the lever 33 can be reset under the rebound action of the spring 37, causing the insert block 34 to engage with the slot 35, thus fixing the screen frame 22 and the turntable 21.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A vibrating screen discharge adjustable fineness modulus device, comprising a housing, the housing comprising an outer housing (1), a screen box (11) provided on the inner side of the outer housing (1), a first screen (12) fixedly connected to the inner surface of the screen box (11), and a second screen (13) fixedly connected to the inner surface of the screen box (11). Its features are, An adjustment mechanism is provided on the inner side of the outer casing (1). The adjustment mechanism includes a rotating rod (2). The rotating rod (2) is movably connected to the inner side of the outer casing (1). A turntable (21) is fixedly connected to the surface of the rotating rod (2). A screen frame (22) is provided on the inner side of the turntable (21). A screen hole (23) is opened on the inner side of the screen frame (22). An adjustment wrench (24) is fixedly connected to the surface of the rotating rod (2). A bolt (25) is movably connected to the inner side of the adjustment wrench (24). A finished product collection hopper (26) is provided on the inner side of the outer casing (1).

2. The adjustable fineness modulus device for vibrating screen output according to claim 1, characterized in that: The sieve frame (22) is arranged in three groups inside the turntable (21), and the sieve holes (23) are evenly distributed inside the sieve frame (22).

3. The device for adjusting the fineness modulus of vibrating screen output according to claim 1, characterized in that: The adjusting wrench (24) is fixed to the outer casing (1) by bolts (25), and the finished product collection hopper (26) is set at the bottom of the second screen (13).

4. The adjustable fineness modulus device for vibrating screen output according to claim 1, characterized in that: The inner side of the turntable (21) is provided with a replacement mechanism, which includes a mounting block (3). The mounting block (3) is fixedly connected to the surface of the screen frame (22). The inner side of the turntable (21) is provided with a mounting groove (31). The inner side of the mounting block (3) is provided with a movable groove (32). The inner side of the movable groove (32) is movably connected with a lever (33). The surface of the lever (33) is fixedly connected with a plug (34). The inner wall of the mounting groove (31) is provided with a slot (35). The inner wall of the movable groove (32) is fixedly connected with a fixing rod (36). The surface of the lever (33) is fixedly connected with a spring (37).

5. The adjustable fineness modulus device for vibrating screen output according to claim 4, characterized in that: The insert (34) is movable inside the movable slot (32). The insert (34) is fixedly connected to the lever (33) in three groups. The slot (35) is opened in three groups on the inner wall of the mounting slot (31).

6. The adjustable fineness modulus device for vibrating screen output according to claim 4, characterized in that: The lever (33) and the fixed rod (36) are movably connected, one end of the spring (37) is fixedly connected to the movable groove (32), and the other end of the spring (37) is fixedly connected to the lever (33).

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