Stone vibrating screen for asphalt production
By designing a multi-stage screen cylinder and an eccentric convex shaft driven stone vibrating screen, the problem of low screening efficiency of multi-specification stone in asphalt production was solved, and a highly efficient multi-stage screening effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG BAOXI ENERGY SAVING FUEL CO LTD
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-08
AI Technical Summary
Existing stone screening devices are difficult to use for simultaneous screening of stones of various sizes in asphalt production, and the screening efficiency is low.
A vibrating screen for stone materials, comprising a first screen cylinder, a second screen cylinder, and a third screen cylinder, was designed. The screen cylinder vibrates up and down by driving the connecting plate and the sliding block through the eccentric convex shaft. Combined with the inclined screening holes and the electric telescopic rod to control the discharge, multi-stage screening is achieved.
It achieves multi-stage screening, improves the efficiency and effectiveness of stone screening, and is suitable for separating stones of different particle sizes in asphalt production.
Smart Images
Figure CN224208482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stone screening devices, and in particular to a stone vibrating screen for asphalt production. Background Technology
[0002] The main functions of a vibrating screen include screening materials, removing impurities, classifying materials, filtering liquids, and dewatering. Vibrating screens generate vibrations, and by adjusting the mesh size of the screen, materials can be separated into different grades, thus achieving the separation of materials of different particle sizes. They are suitable for various fields such as chemical, food, pharmaceutical, metallurgy, and building materials.
[0003] When producing asphalt, it needs to be mixed with stone. Since the stone has different sizes, it needs to be screened. Existing screening devices screen the stone by vibration. However, the stone is usually divided into multiple sizes. During screening, the screens of multiple sizes need to be vibrated synchronously. Therefore, a stone vibrating screen for asphalt production is needed. Utility Model Content
[0004] The purpose of this invention is to provide a stone vibrating screen for asphalt production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a stone vibrating screen for asphalt production, comprising an operating cylinder, wherein a first screen cylinder, a second screen cylinder, and a third screen cylinder are installed inside the operating cylinder, wherein the inner bottom walls of the first screen cylinder, the second screen cylinder, and the third screen cylinder are provided with multiple screening holes, the inner bottom walls of the first screen cylinder, the second screen cylinder, and the third screen cylinder are provided with inclined surfaces, and a vibrating screening mechanism is installed on the inner bottom wall of the operating cylinder;
[0006] The vibrating screening mechanism includes a pair of connecting plates slidably connected to the inner wall of the operating cylinder. A first spiral plate is fixedly connected to the bottom end of the pair of connecting plates. Multiple second spiral plates are fixedly connected to the surface of the connecting plates. A pair of sliders are fixedly connected to the surface of the first screen cylinder, the second screen cylinder, and the third screen cylinder. The sliders are slidably connected to the inner wall of the operating cylinder and are installed inside the second spiral plates.
[0007] Preferably, the vibrating screening mechanism further includes a double-headed drive motor fixedly connected to the bottom wall of the operating cylinder. Both output ends of the double-headed drive motor are fixedly connected to a turntable. A convex shaft is fixedly connected to the surface of the turntable. The convex shaft is eccentrically set with respect to the central axis of the turntable and is installed inside the first spiral plate.
[0008] Preferably, a force-bearing plate is fixedly connected to the inner wall of the operating cylinder, a telescopic cylinder is fixedly connected to the upper surface of the force-bearing plate, a U-shaped plate is fixedly connected to the top of the telescopic cylinder, and a spring is sleeved on the surface of the telescopic cylinder.
[0009] Preferably, an electric telescopic rod is fixedly connected inside the first, second, and third sieve cylinders, and an arc-shaped baffle is fixedly connected to the output end of the electric telescopic rod.
[0010] Preferably, a plurality of discharge plates are fixedly connected to the inner wall of the operating cylinder, a discharge plate is fixedly connected to the inner wall of the operating cylinder, the discharge plate is installed below the third screen cylinder, and a controller is fixedly connected to the surface of the operating cylinder.
[0011] In summary, the technical effects and advantages of this utility model are as follows:
[0012] In this invention, the turntable drives the eccentrically mounted convex shaft to rotate, which in turn drives the first spiral plate and the connecting plate to move up and down as a whole. The connecting plate drives the second spiral plate to move up and down, causing the slider to be subjected to force, which drives the first screen cylinder, the second screen cylinder and the third screen cylinder to move up and down together, generating vibration. The inner diameter of multiple screening holes decreases sequentially from top to bottom, thus screening the stone. The advantage of doing this is that it can drive multiple screens to vibrate, achieving the screening effect. Attached Figure Description
[0013] 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.
[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a cross-sectional view of the operating cylinder in an embodiment of the present invention;
[0016] Figure 3 This is a cross-sectional view of the first sieve cylinder in an embodiment of the present invention;
[0017] Figure 4 This is a schematic diagram of the planar structure of the connecting plate in an embodiment of this utility model.
[0018] In the diagram: 1. Operating cylinder; 2. Controller; 3. Discharge plate; 4. Discharge plate; 5. First screen cylinder; 6. Second screen cylinder; 7. Third screen cylinder; 8. Screening hole; 9. Electric telescopic rod; 10. Arc-shaped baffle; 11. Dual-head drive motor; 12. Connecting plate; 13. First spiral plate; 14. Convex shaft; 15. Turntable; 16. Second spiral plate; 17. Slider; 18. U-shaped plate; 19. Telescopic cylinder; 20. Force plate; 21. Spring. Detailed Implementation
[0019] 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.
[0020] Example: Reference Figures 1-4 The shown is a stone vibrating screen for asphalt production, including an operating cylinder 1. The operating cylinder 1 is equipped with a first screen cylinder 5, a second screen cylinder 6 and a third screen cylinder 7. The inner bottom walls of the first screen cylinder 5, the second screen cylinder 6 and the third screen cylinder 7 are provided with multiple screening holes 8. The inner bottom walls of the first screen cylinder 5, the second screen cylinder 6 and the third screen cylinder 7 are set as inclined surfaces. The inner bottom wall of the operating cylinder 1 is equipped with a vibrating screening mechanism.
[0021] The vibrating screening mechanism includes a pair of connecting plates 12 slidably connected to the inner wall of the operating cylinder 1. A first spiral plate 13 is fixedly connected to the bottom end of the pair of connecting plates 12. Multiple second spiral plates 16 are fixedly connected to the surface of the connecting plates 12. A pair of sliders 17 are fixedly connected to the surface of the first screen cylinder 5, the second screen cylinder 6 and the third screen cylinder 7. The sliders 17 are slidably connected to the inner wall of the operating cylinder 1 and are installed inside the second spiral plates 16.
[0022] Using the above structure, multi-stage screening is performed by setting up a first screen cylinder 5, a second screen cylinder 6, and a third screen cylinder 7. Multiple screening holes 8 are provided, with their inner diameters decreasing sequentially from top to bottom. The inner bottom walls of the first screen cylinder 5, the second screen cylinder 6, and the third screen cylinder 7 are set as inclined surfaces to facilitate material discharge. A first rotary plate 13 is provided, which is driven up and down by a convex shaft 14. A second rotary plate 16 is provided, which drives the slider 17 to move up and down with it, thereby causing the first screen cylinder 5, the second screen cylinder 6, and the third screen cylinder 7 at corresponding heights to vibrate.
[0023] Preferably, the vibrating screening mechanism further includes a double-head drive motor 11 fixedly connected to the bottom wall of the operating cylinder 1. Both output ends of the double-head drive motor 11 are fixedly connected to a turntable 15. A convex shaft 14 is fixedly connected to the surface of the turntable 15. The convex shaft 14 is eccentrically set with the central axis of the turntable 15. The convex shaft 14 is installed inside the first spiral plate 13.
[0024] By setting up a turntable 15, when the turntable 15 rotates, it drives the eccentric cam shaft 14 to rotate.
[0025] Preferably, a force-bearing plate 20 is fixedly connected to the inner wall of the operating cylinder 1, a telescopic cylinder 19 is fixedly connected to the upper surface of the force-bearing plate 20, a U-shaped plate 18 is fixedly connected to the top of the telescopic cylinder 19, and a spring 21 is sleeved on the surface of the telescopic cylinder 19.
[0026] By setting a force-bearing plate 20 and installing a telescopic cylinder 19, and by setting a U-shaped plate 18, when the convex shaft 14 descends, it contacts the surface of the U-shaped plate 18, and is buffered and protected by a spring 21.
[0027] Preferably, an electric telescopic rod 9 is fixedly connected inside the first sieve cylinder 5, the second sieve cylinder 6 and the third sieve cylinder 7, and an arc-shaped baffle 10 is fixedly connected to the output end of the electric telescopic rod 9.
[0028] By setting an electric telescopic rod 9, the arc-shaped baffle 10 can be opened, and the discharge port can be blocked and protected by setting the arc-shaped baffle 10.
[0029] Preferably, a plurality of discharge plates 4 are fixedly connected to the inner wall of the operating cylinder 1, a discharge plate 3 is fixedly connected to the inner wall of the operating cylinder 1, the discharge plate 3 is installed below the third screen cylinder 7, and a controller 2 is fixedly connected to the surface of the operating cylinder 1.
[0030] By setting up the discharge plate 4 and the discharge plate 3, the screened stones are transferred, and by setting up the controller 2, the start and stop of the dual-head drive motor 11 are controlled.
[0031] The working principle of this utility model is as follows: A vibrating screen for asphalt production, after the stone is poured into the first screen cylinder 5, the double-head drive motor 11 is started. The output end of the double-head drive motor 11 drives a pair of turntables 15 to rotate. The turntables 15 drive the eccentrically mounted convex shaft 14 to rotate, which in turn drives the first spiral plate 13 and the connecting plate 12 to move up and down as a whole. The connecting plate 12 drives the connected second spiral plate 16 to move up and down. The second spiral plate 16 drives the slider 17 to be subjected to force, so that the first screen cylinder 5, the second screen cylinder 6 and the third screen cylinder 7 move up and down together, generating vibration. The slider 17 descends and contacts the surface of the U-shaped plate 18, and is buffered and protected by the spring 21. The inner diameter of the multiple screening holes 8 decreases from top to bottom to screen the stone. When the screened stone needs to be discharged, the electric telescopic rod 9 can be started to drive the arc baffle 10 to rise to release the obstruction of the stone, and the stone is discharged through multiple discharge plates 4. With the above structure, multiple screens can be driven to vibrate to achieve the screening effect.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vibrating screen for aggregate production in asphalt production, comprising an operating cylinder (1), characterized in that: The operating cylinder (1) is equipped with a first sieve cylinder (5), a second sieve cylinder (6) and a third sieve cylinder (7). The inner bottom walls of the first sieve cylinder (5), the second sieve cylinder (6) and the third sieve cylinder (7) are provided with multiple screening holes (8). The inner bottom walls of the first sieve cylinder (5), the second sieve cylinder (6) and the third sieve cylinder (7) are set as inclined surfaces. The inner bottom wall of the operating cylinder (1) is equipped with a vibrating screening mechanism. The vibrating screening mechanism includes a pair of connecting plates (12) slidably connected to the inner wall of the operating cylinder (1). The bottom end of the pair of connecting plates (12) is fixedly connected to a first spiral plate (13). Multiple second spiral plates (16) are fixedly connected to the surface of the connecting plates (12). A pair of sliders (17) are fixedly connected to the surface of the first screen cylinder (5), the second screen cylinder (6) and the third screen cylinder (7). The sliders (17) are slidably connected to the inner wall of the operating cylinder (1). The sliders (17) are installed inside the second spiral plates (16).
2. The stone vibrating screen for asphalt production according to claim 1, characterized in that: The vibrating screening mechanism also includes a double-head drive motor (11) fixedly connected to the bottom wall of the operating cylinder (1). Both output ends of the double-head drive motor (11) are fixedly connected to a turntable (15). A convex shaft (14) is fixedly connected to the surface of the turntable (15). The convex shaft (14) is eccentrically set with the central axis of the turntable (15). The convex shaft (14) is installed inside the first spiral plate (13).
3. The stone vibrating screen for asphalt production according to claim 1, characterized in that: The inner wall of the operating cylinder (1) is fixedly connected to a force plate (20), the upper surface of the force plate (20) is fixedly connected to a telescopic cylinder (19), the top end of the telescopic cylinder (19) is fixedly connected to a U-shaped plate (18), and a spring (21) is sleeved on the surface of the telescopic cylinder (19).
4. A vibrating screen for aggregate production in asphalt production according to claim 1, characterized in that: The first sieve cylinder (5), the second sieve cylinder (6) and the third sieve cylinder (7) are all fixedly connected with electric telescopic rods (9), and the output end of the electric telescopic rods (9) is fixedly connected with arc-shaped baffles (10).
5. A vibrating screen for aggregate production in asphalt production according to claim 1, characterized in that: The inner wall of the operating cylinder (1) is fixedly connected with multiple discharge plates (4), the inner wall of the operating cylinder (1) is fixedly connected with a discharge plate (3), the discharge plate (3) is installed below the third screen cylinder (7), and the surface of the operating cylinder (1) is fixedly connected with a controller (2).