Mesh adjusting mechanism of circular vibrating screen

Abstract

The utility model relates to the technical field of vibrating screen adjustment, in particular to a mesh adjusting mechanism of a circular vibrating screen. The mesh adjusting mechanism comprises a supporting screen, an adjusting screen is rotatably connected to the interior of the supporting screen, a supporting frame is fixedly connected to the surface of the supporting screen, and a lead screw is rotatably connected to the surface of the supporting frame; the surface of the lead screw is in threaded connection with a square nut. The screw rod rotates to drive the square nut to slide on the surface of the supporting frame, the square nut drives the movable block to move synchronously, and the movable block drives the adjusting screen to rotate in the supporting screen through the connecting column and the movable block, so that the mesh size of the circular vibrating screen is adjusted; a spring enables a limiting rod to be inserted into a limiting hole of a limiting disc through elastic force, the limiting disc is prevented from rotating, a screw rod is prevented from rotating to drive a square nut to move, the adjusting mechanism is prevented from loosening, the mesh accuracy of the circular vibrating screen is guaranteed, and the using effect of the circular vibrating screen is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen adjustment technology, specifically to a mesh adjustment mechanism for a circular vibrating screen. Background Technology

[0002] Circular vibrating screens are a common type of screening equipment, widely used in industries such as mining, construction, chemicals, and food, for grading and screening materials of different particle sizes.

[0003] The mesh adjustment mechanism of a circular vibrating screen can adjust the mesh size. However, after the existing mesh adjustment mechanism is adjusted, the adjustment parts may become loose under the continuous vibration of the circular vibrating screen, which will affect the mesh accuracy and reduce the performance of the circular vibrating screen. Utility Model Content

[0004] The purpose of this utility model is to provide a mesh adjustment mechanism for a circular vibrating screen, so as to solve the problem mentioned in the background art that the adjustment mechanism will become loose under the continuous vibration of the circular vibrating screen, which will affect the mesh accuracy of the circular vibrating screen and reduce the performance of the circular vibrating screen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mesh adjustment mechanism for a circular vibrating screen, comprising a supporting screen, an adjusting screen rotatably connected inside the supporting screen, a support frame fixedly connected to the surface of the supporting screen, a lead screw rotatably connected to the surface of the support frame, a square nut threadedly connected to the surface of the lead screw, an adjusting block fixedly connected to the surface of the square nut, a movable block fixedly connected to the surface of the adjusting screen, a connecting column fixedly connected to the surface of the movable block, the connecting column movably connected to the surface of the adjusting block, a knob fixedly connected to one end of the lead screw, a limit plate fixedly connected to the other end of the lead screw, a support plate fixedly connected to the surface of the support frame, a spring fixedly connected to the surface of the support plate, a limit rod fixedly connected to the surface of the spring, the limit rod slidably connected to the surface of the support plate, numerical lines provided on the surface of the support frame, and a pointer fixedly connected to the surface of the square nut.

[0006] Preferably, the support frame is U-shaped, the lead screw is driven to rotate by a knob, and the lead screw drives the square nut to slide on the surface of the support frame by rotation.

[0007] Preferably, the square nut drives the adjusting block to slide synchronously, the adjusting block has a movable hole on its surface, the connecting post is located on the movable hole of the adjusting block, and the guide hole of the adjusting block supports the rotation and movement of the connecting post.

[0008] Preferably, the supporting screen has a cavity inside, and the cavity has a guide hole on the side near the support frame. The adjusting screen rotates on the cavity of the supporting screen, and the movable block slides on the guide hole of the support frame.

[0009] Preferably, during the movement of the adjusting block, the movable block is driven to move synchronously through the connecting column, and the movable block drives the adjusting screen to rotate on the chamber supporting the screen.

[0010] Preferably, the limiting plate has a limiting groove on its surface, and the limiting groove is evenly arranged in a ring on the surface of the limiting plate. The limiting plate rotates synchronously with the lead screw. The support plate is in the shape of an "L". The limiting rod is inserted into the limiting groove of the limiting plate.

[0011] Preferably, the pointer slides synchronously on the support frame following the square nut, and the pointer changes its position on the numerical line by moving.

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

[0013] 1. This adjustment mechanism uses a knob to drive a lead screw to rotate on a support frame. The lead screw, through rotation, drives a square nut to slide on the surface of the support frame. The square nut causes a movable block to move synchronously. The movable block, through a connecting column and the movable block, drives the adjusting screen to rotate inside the supporting screen, thereby adjusting the mesh size of the circular vibrating screen. A spring, through its elasticity, causes a limiting rod to engage with the limiting hole of the limiting plate. Under vibration, the spring keeps the bottom of the limiting rod within the limiting groove of the limiting plate, preventing the limiting plate from rotating. This prevents the lead screw from rotating and causing the square nut to move, thus preventing the adjustment mechanism from loosening. This ensures the mesh accuracy of the circular vibrating screen and guarantees its performance.

[0014] 2. In this adjustment mechanism, the square nut moves, causing the pointer to move. The pointer changes its position on the numerical line. By observing the value of the pointer on the numerical line, the mesh size of the circular vibrating screen can be determined, allowing the user to precisely adjust the mesh size. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a three-dimensional side view and cross-sectional view of the structure of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Support screen; 11. Adjusting screen; 2. Support frame; 21. Lead screw; 22. Square nut; 23. Adjusting block; 24. Movable block; 25. Connecting column; 26. Knob; 3. Limiting plate; 31. Support plate; 32. Spring; 33. Limiting rod; 4. Numerical line; 41. Pointer. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A mesh adjustment mechanism for a circular vibrating screen includes a supporting screen 1, an adjusting screen 11 rotatably connected inside the supporting screen 1, a support frame 2 fixedly connected to the surface of the supporting screen 1, a lead screw 21 rotatably connected to the surface of the support frame 2, a square nut 22 threadedly connected to the surface of the lead screw 21, an adjusting block 23 fixedly connected to the surface of the square nut 22, a movable block 24 fixedly connected to the surface of the adjusting screen 11, a connecting column 25 fixedly connected to the surface of the movable block 24, and the connecting column 25 movably connected to the surface of the adjusting block 23. A knob 26 is fixedly connected to one end of the lead screw 21, and a limit plate 3 is fixedly connected to the other end of the lead screw 21. A support plate 31 is fixedly connected to the surface of the support frame 2, and the surface of the support plate 31... A spring 32 is fixedly connected, and a limit rod 33 is fixedly connected to the surface of the spring 32. The limit rod 33 is slidably connected to the surface of the support plate 31. A numerical line 4 is provided on the surface of the support frame 2, and a pointer 41 is fixedly connected to the surface of the square nut 22. The adjusting screen 11 rotates by being hung on the supporting screen 1, thereby changing the relative position between the supporting screen 1 and the adjusting screen 11, thus realizing the actual adjustment of the mesh size of the circular vibrating screen. After the adjustment is completed, the adjusting mechanism can limit the adjusted position, thereby preventing the relative position between the supporting screen 1 and the adjusting screen 11 from changing, preventing the adjusting mechanism from loosening, thus ensuring the mesh accuracy of the circular vibrating screen and ensuring the use effect of the circular vibrating screen.

[0024] Furthermore, the support frame 2 is U-shaped. The lead screw 21 is driven to rotate by the knob 26. The lead screw 21 drives the square nut 22 to slide on the surface of the support frame 2 by rotating. When the lead screw 21 is not rotating, the square nut 22 will be restricted to the surface of the support frame 2 by the lead screw 21, realizing the self-locking of the square nut 22 on the support frame 2. However, the lead screw 21 will rotate under vibration, causing the square nut 22 to move.

[0025] Furthermore, the square nut 22 drives the adjusting block 23 to slide synchronously. The surface of the adjusting block 23 is provided with a movable hole. The connecting column 25 is located on the movable hole of the adjusting block 23. The guide hole of the adjusting block 23 supports the rotation and movement of the connecting column 25, thereby ensuring that the adjusting screen 11 can ensure that the movable block 24 drives the connecting column 25 to rotate on the supporting screen 1.

[0026] Furthermore, the support screen 1 has a cavity inside, and the cavity has a guide hole on the side near the support frame 2. The adjusting screen 11 rotates on the cavity of the support screen 1, and the movable block 24 slides on the guide hole of the support frame 2. The adjusting screen 11 is connected to the outside of the support screen 1 through the movable block 24, so as to facilitate the adjustment of the position of the adjusting screen 11.

[0027] Furthermore, during the movement of the adjusting block 23, the movable block 24 is driven to move synchronously through the connecting column 25. The movable block 24 drives the adjusting screen 11 to rotate on the chamber of the supporting screen 1, thereby changing the position of the mesh objects between the supporting screen 1 and the adjusting screen 11, and realizing the adjustment of the mesh size of the circular vibrating screen.

[0028] Furthermore, a limiting groove is formed on the surface of the limiting plate 3, and the limiting groove is evenly arranged in a ring on the surface of the limiting plate 3. The limiting plate 3 rotates synchronously with the lead screw 21. The support plate 31 is in an "L" shape. The limiting rod 33 is inserted into the limiting groove of the limiting plate 3. The limiting rod 33 restricts the rotation of the limiting plate 3, thereby restricting the rotation of the lead screw 21. Under the action of vibration, the spring 32 can keep the bottom of the limiting rod 33 always on the limiting groove of the limiting plate 3, thus preventing the limiting plate 3 from rotating.

[0029] Furthermore, the pointer 41 slides synchronously on the support frame 2 along with the square nut 22. The pointer 41 changes its position on the numerical line 4 by moving. The numerical line 4 represents the value of the mesh size. By pointing the pointer 41 to the numerical line 4, the size of the mesh can be known, which makes it convenient for users to make precise adjustments to the mesh size.

[0030] Working principle: The screw 21 is driven to rotate on the support frame 2 by the knob 26. The screw 21 drives the square nut 22 to slide on the surface of the support frame 2 by rotation. The square nut 22 drives the movable block 24 to move synchronously. The movable block 24 drives the adjusting screen 11 to rotate inside the supporting screen 1 through the connecting column 25 and the movable block 24, thereby adjusting the mesh size of the circular vibrating screen. The spring 32 causes the limiting rod 33 to be inserted into the limiting hole of the limiting plate 3 by elastic force. Under the action of vibration, the spring 32 can keep the bottom of the limiting rod 33 always controlled on the limiting groove of the limiting plate 3, preventing the limiting plate 3 from rotating, thereby preventing the screw 21 from rotating and driving the square nut 22 to move, preventing the adjusting mechanism from loosening, thus ensuring the mesh accuracy of the circular vibrating screen and ensuring the use effect of the circular vibrating screen.

[0031] As the square nut 22 moves, it drives the pointer 41 to move. The pointer 41 changes its position on the numerical line 4 by moving. By observing the value of the pointer 41 corresponding to the numerical line 4, the size of the mesh of the circular vibrating screen can be known at this time, so that the user can make precise adjustments to the mesh size.

[0032] 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 rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mesh adjustment mechanism for a circular vibrating screen, characterized in that: The system includes a supporting screen (1), an adjustable screen (11) rotatably connected inside the supporting screen (1), a support frame (2) fixedly connected to the surface of the supporting screen (1), a lead screw (21) rotatably connected to the surface of the support frame (2), a square nut (22) threadedly connected to the surface of the lead screw (21), an adjusting block (23) fixedly connected to the surface of the square nut (22), a movable block (24) fixedly connected to the surface of the adjusting screen (11), and a connecting column (25) fixedly connected to the surface of the movable block (24). The connecting column (25) is movably connected to the adjusting screen. On the surface of the segment (23), a knob (26) is fixedly connected to one end of the lead screw (21), and a limit plate (3) is fixedly connected to the other end of the lead screw (21). A support plate (31) is fixedly connected to the surface of the support frame (2). A spring (32) is fixedly connected to the surface of the support plate (31). A limit rod (33) is fixedly connected to the surface of the spring (32). The limit rod (33) is slidably connected to the surface of the support plate (31). A numerical line (4) is provided on the surface of the support frame (2). A pointer (41) is fixedly connected to the surface of the square nut (22).

2. The mesh adjustment mechanism of a circular vibrating screen according to claim 1, characterized in that: The support frame (2) is U-shaped, and the lead screw (21) is driven to rotate by the knob (26). The lead screw (21) drives the square nut (22) to slide on the surface of the support frame (2) by rotating.

3. The mesh adjustment mechanism of a circular vibrating screen according to claim 1, characterized in that: The square nut (22) drives the adjusting block (23) to slide synchronously. The adjusting block (23) has a movable hole on its surface. The connecting post (25) is located on the movable hole of the adjusting block (23). The guide hole of the adjusting block (23) supports the rotation and movement of the connecting post (25).

4. The mesh adjustment mechanism of a circular vibrating screen according to claim 3, characterized in that: The support screen (1) has a cavity inside, and a guide hole is provided on the side of the cavity near the support frame (2). The adjusting screen (11) rotates on the cavity of the support screen (1), and the movable block (24) slides on the guide hole of the support frame (2).

5. The mesh adjustment mechanism of a circular vibrating screen according to claim 4, characterized in that: During the movement of the adjusting block (23), the movable block (24) is driven to move synchronously through the connecting column (25), and the movable block (24) drives the adjusting screen (11) to rotate on the chamber supporting the screen (1).

6. The mesh adjustment mechanism of a circular vibrating screen according to claim 1, characterized in that: The limiting plate (3) has a limiting groove on its surface, and the limiting groove is evenly arranged in a ring on the surface of the limiting plate (3). The limiting plate (3) rotates synchronously with the lead screw (21). The support plate (31) is in the shape of an "L". The limiting rod (33) is inserted into the limiting groove of the limiting plate (3).

7. The mesh adjustment mechanism of a circular vibrating screen according to claim 6, characterized in that: The pointer (41) slides synchronously on the support frame (2) along with the square nut (22), and the pointer (41) changes its position on the numerical line (4) by moving.

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