Vibration reducing device for steel spring lining of vibrating screen

Abstract

The utility model belongs to the technical field of vibrating screens, and particularly relates to a vibrating screen steel spring lining damping device which comprises a bottom cylinder, a sliding cylinder is slidably connected to the top of the inner side of the bottom cylinder, a top feeding cylinder is assembled on the top of the sliding cylinder, and the diameter of the top feeding cylinder is larger than that of the sliding cylinder. An upper fixing ring and a lower fixing ring are fixed to the outer side of the sliding cylinder and the outer side of the bottom cylinder correspondingly, a plurality of sliding columns are fixed into the lower fixing ring and slidably connected with the upper fixing ring, springs are installed between the upper fixing ring and the lower fixing ring and located on the outer sides of the sliding columns, and adjusting mechanisms are installed in the sliding columns. The adjusting mechanism is used for adjusting the elasticity of the spring and comprises a threaded rod rotationally connected into the sliding column, the outer side of the threaded rod is in threaded connection with a pressure piece, and an empty groove is formed in the position, located on the outer side of the pressure piece, in the sliding column. The elastic force of the spring can be controlled, and the service life of the device is prolonged while stable screening of the vibrating screen is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibrating screens, and particularly relates to a shock absorption device for the steel spring lining of a vibrating screen. Background Art

[0002] The vibrating screen, as a key device in the field of material screening, is widely used in multiple industries such as mining, building materials, chemical engineering, and metallurgy. Its core function is to make the material generate stratification, screen penetration, and conveying effects on the screen surface through vibration, so as to realize the classification of the material. However, during the long-term operation of the vibrating screen, due to the strong vibration generated by the vibration motor, it will not only cause direct impact on the screen body and the support structure, but also may cause structural resonance, resulting in equipment damage or performance degradation;

[0003] Traditional shock absorption devices for vibrating screens mostly rely on the elastic deformation of steel springs to absorb and disperse vibration energy. Steel springs, with their high load-bearing capacity and good elastic characteristics, are widely used in the field of shock absorption. However, in practical applications, traditional steel spring shock absorption devices have many limitations. First of all, the elastic force of the spring is fixed and cannot be dynamically adjusted according to the actual working conditions of the vibrating screen. When screening materials with different particle sizes, densities, or viscosities, the fixed elastic force may lead to a decrease in screening efficiency or equipment overload;

[0004] Therefore, it is necessary to improve and innovate the existing shock absorption device to improve the overall performance and service life of the vibrating screen. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a shock absorption device for the steel spring lining of a vibrating screen, which can control the elastic force of the spring, realize stable screening of the vibrating screen, extend the service life of the device, and improve the screening efficiency.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] The shock absorption device for the steel spring lining of a vibrating screen includes a bottom cylinder. The top inside the bottom cylinder is slidably connected with a sliding cylinder. The top of the sliding cylinder is equipped with a top feeding cylinder, and the diameter of the top feeding cylinder is larger than that of the sliding cylinder;

[0008] Fixing upper rings and fixing lower rings are respectively fixed on the outer sides of the sliding cylinder and the bottom cylinder. A plurality of sliding columns are fixed inside the fixing lower ring, and the sliding columns are slidably connected with the fixing upper ring. Springs are installed between the fixing upper ring and the fixing lower ring and on the outer sides of the plurality of sliding columns;

[0009] An adjusting mechanism is installed inside the sliding column, and the adjusting mechanism is used to adjust the elasticity of the spring.

[0010] The adjusting mechanism includes a threaded rod rotatably connected inside the sliding column. A pressure piece is threadedly connected to the outer side of the threaded rod. An empty groove is provided inside the sliding column and outside the pressure piece. The pressure piece is stuck in the middle of the spring.

[0011] A synchronous rotation mechanism is assembled between every two adjacent threaded rods. The synchronous rotation mechanism is used to drive multiple threaded rods to rotate synchronously.

[0012] The synchronous rotation mechanism includes transmission shafts fixed to the outer sides of two adjacent threaded rods, and the two transmission shafts are driven by a transmission belt.

[0013] The technical effects achieved by the present utility model are as follows:

[0014] By rotating the threaded rod of the present utility model, the pressure piece can press the spring, thereby controlling the elastic force of the spring, achieving stable screening of the vibrating screen while extending the service life of the device and improving the screening efficiency. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram between the fixed upper ring, the spring and the sliding cylinder of the present utility model;

[0017] Figure 3 is a schematic structural diagram between the transmission belt, the empty groove and the fixed lower ring of the present utility model;

[0018] Figure 4 is a cross-sectional view of the sliding column of the present utility model;

[0019] Figure 5 is a schematic structural diagram between the transmission shaft, the transmission belt and the anti-sticking arc strip of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Bottom cylinder; 2. Sliding cylinder; 3. Top feeding cylinder; 4. Fixed upper ring; 5. Fixed lower ring; 6. Sliding column; 7. Spring; 8. Threaded rod; 9. Pressure piece; 10. Empty groove; 11. Transmission shaft; 12. Transmission belt; 13. Anti-sticking arc strip. Detailed Embodiments

[0022] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present utility model and does not strictly limit the specific protection scope claimed by the present utility model.

[0023] As shown Figures 1-5 in the figure, the shock absorption device for the inner lining of the vibrating screen steel spring includes a bottom cylinder 1. The top inside the bottom cylinder 1 is slidably connected with a sliding cylinder 2. The top of the sliding cylinder 2 is equipped with a top feeding cylinder 3, and the diameter of the top feeding cylinder 3 is larger than that of the sliding cylinder 2. Through this setting, a thicker material layer is formed on the sieve surface, which helps the stratification of the material and can increase the screening area, enabling the material to have more contact opportunities on the sieve surface, thereby improving the screening efficiency. The bottom of the bottom cylinder 1 is provided with an openable discharge plate for discharging materials;

[0024] A fixed upper ring 4 and a fixed lower ring 5 are respectively fixed on the outer sides of the sliding cylinder 2 and the bottom cylinder 1. A plurality of sliding columns 6 are fixed inside the fixed lower ring 5, and the sliding columns 6 are slidably connected with the fixed upper ring 4. Springs 7 are installed between the fixed upper ring 4 and the fixed lower ring 5 and on the outer sides of the plurality of sliding columns 6;

[0025] When screening materials, the materials can be screened through the vibration inside the sliding cylinder 2 and the top feeding cylinder 3. Through the setting of the springs 7, the sliding cylinder 2 and the top feeding cylinder 3 can be shock-absorbed. And through the setting of the sliding columns 6, the springs 7 can be restricted to prevent the springs 7 from skewing when shock-absorbing the sliding cylinder 2 and the top feeding cylinder 3. The length of the springs 7 is less than the distance between the fixed upper ring 4 and the top feeding cylinder 3. Through this setting, when the sliding columns 6 move up during the compression or shock absorption of the springs 7, it is avoided that the sliding columns 6 touch the top feeding cylinder 3 due to the short distance between the sliding columns 6 and the top feeding cylinder 3;

[0026] An adjusting mechanism is installed inside the sliding column 6, and the adjusting mechanism is used to adjust the elasticity of the springs 7.

[0027] Refer to the appendix Figure 4 , the adjusting mechanism includes a threaded rod 8 rotatably connected inside the sliding column 6. A pressure piece 9 is threadedly connected to the outer side of the threaded rod 8. The pressure piece 9 is stuck in the middle of the spring 7. Through the setting of the pressure piece 9, the spring 7 is compressed. An empty groove 10 is provided inside the sliding column 6 and on the outer side of the pressure piece 9. The pressure piece 9 fits with the inner wall of the empty groove 10, and rolling beads are assembled at the position where the pressure piece 9 is close to the inner wall of the empty groove 10. Through this setting, the pressure piece 9 can slide in the empty groove 10, and through the setting of the rolling beads, the sliding of the pressure piece 9 is smoother, reducing the friction force;

[0028] When it is necessary to adjust the elastic force of the spring 7, the threaded rod 8 can be rotated. Through the threaded connection between the pressure piece 9 and the threaded rod 8, and the sliding connection between the pressure piece 9 and the empty slot 10, the pressure piece 9 can slide up and down in the empty slot 10 to compress the spring 7, so that the spring 7 is compressed. Thus, according to different situations, the spring 7 can be compressed to different degrees to ensure the normal progress of screening during shock absorption. When a motor is assembled at the bottom of one of the threaded rods 8, the motor drives the threaded rod 8 to rotate, so as to automatically control the elastic force of the spring 7;

[0029] A synchronous rotation mechanism is assembled between every two adjacent threaded rods 8, and the synchronous rotation mechanism is used to drive multiple threaded rods 8 to rotate synchronously.

[0030] Refer to the appendix Figure 5 , the synchronous rotation mechanism includes transmission shafts 11 fixed on the outer sides of two adjacent threaded rods 8, and the two transmission shafts 11 are driven by a transmission belt 12. When one of the transmission shafts 11 rotates, it drives the transmission belt 12 to rotate and drives the other transmission shaft 11 to rotate, so as to drive all the transmission shafts 11 to rotate synchronously in the same direction, and then drive multiple threaded rods 8 to rotate synchronously. A plurality of anti-sticking arc strips 13 are fixed on the outer side of the bottom cylinder 1 at positions corresponding to the transmission belt 12, and the anti-sticking arc strips 13 are used to limit the transmission belt 12. Through this setting, when the transmission belt 12 is tightened, the situation that the transmission belt 12 contacts the bottom cylinder 1 is avoided.

[0031] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A vibration screen steel spring lining shock absorbing device, comprising a bottom cylinder (1), characterized in that: The top of the inner side of the bottom cylinder (1) is slidably connected to a sliding cylinder (2), and a top feeding cylinder (3) is mounted on the top of the sliding cylinder (2), and the diameter of the top feeding cylinder (3) is larger than the diameter of the sliding cylinder (2); A fixed upper ring (4) and a fixed lower ring (5) are fixed to the outer sides of the sliding cylinder (2) and the bottom cylinder (1), respectively; a plurality of sliding columns (6) are fixed inside the fixed lower ring (5), and the sliding columns (6) are slidably connected to the fixed upper ring (4); springs (7) are installed between the fixed upper ring (4) and the fixed lower ring (5) and on the outer sides of the plurality of sliding columns (6); An adjusting mechanism is installed inside the sliding column (6), and the adjusting mechanism is used to adjust the elasticity of the spring (7).

2. The vibration screen steel spring liner shock absorbing device according to claim 1 is characterized in that: The adjusting mechanism comprises a threaded rod (8) rotatably connected to the inside of the sliding column (6), a pressure plate (9) is threadedly connected to the outside of the threaded rod (8), an empty groove (10) is provided inside the sliding column (6) and on the outside of the pressure plate (9), and the pressure plate (9) is clamped in the middle of the spring (7); A synchronous rotation mechanism is installed between every two adjacent threaded rods (8), and the synchronous rotation mechanism is used to drive the plurality of threaded rods (8) to rotate synchronously.

3. The vibration screen steel spring liner shock absorbing device according to claim 2 is characterized in that: The synchronous rotation mechanism comprises a transmission shaft (11) fixed on the outside of two adjacent threaded rods (8), and the two transmission shafts (11) are driven by a transmission belt (12).

4. The vibration screen steel spring liner shock absorbing device according to claim 1, characterized in that: The length of the spring (7) is smaller than the distance between the fixed upper ring (4) and the top feeding cylinder (3).

5. The vibration screen steel spring liner shock absorbing device according to claim 2 is characterized in that: The pressure sheet (9) is in contact with the inner wall of the hollow groove (10), and a rolling ball is mounted on the pressure sheet (9) at a position close to the inner wall of the hollow groove (10).

6. The vibration screen steel spring liner shock absorbing device according to claim 3 is characterized in that: A plurality of anti-sticking arc strips (13) are fixed on the outer side of the bottom tube (1) and at positions corresponding to the transmission belt (12), and the anti-sticking arc strips (13) are used to limit the transmission belt (12).

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