Feeding buffer device of vibrating screen

Abstract

The utility model provides a vibrating screen feeding buffer device which is installed on a vibrating screen, the vibrating screen comprises a screen frame and a screen mesh, the screen mesh is installed in the screen frame, one side of the screen frame is provided with a shock excitation motor, one end of the screen frame is fixedly provided with a feeding hopper, the feeding hopper is located above the screen mesh, and the other end of the screen frame is fixedly provided with a feeding hopper. An arc-shaped plate is arranged at the intersection of the feeding hopper and the screen frame and protrudes upwards, one side of the arc-shaped plate extends to the screen mesh, a supporting frame is arranged below the vibrating screen, and an adjusting component facilitating adjustment of the inclination angle of the screen mesh is installed on the supporting frame. Abrasion of the screen at the feeding position is reduced, the service life of the screen is prolonged, cost is saved, and screening precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a feeding buffer device for a vibrating screen. Background Art

[0002] Vibrating screens are widely used in industries such as coal, mining, and building materials. They operate by utilizing reciprocating vibrations generated by a vibrator. The vibrator's upper rotating weight produces planar gyratory vibrations on the screen surface, while the lower rotating weight produces conical gyratory vibrations. The combined effect produces complex gyratory vibrations on the screen surface. The vibration path is a complex spatial curve, projected as a circle on the horizontal plane and an ellipse on the vertical plane.

[0003] In the construction industry, vibrating screens are required for screening of materials such as sand and gravel. The materials are transported to the feed hopper of the vibrating screen manually or by conveyor belt. Since there is no buffer device installed at the feed hopper, the materials directly hit the screen from the feed hopper, and the impact force is large, which can easily cause the screen to break and be damaged, reducing the service life of the screen and increasing the cost of replacing the screen later. At the same time, it also reduces the efficiency of the vibrating screen material screening and prolongs the screening time. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and provide a vibration screen feeding buffer device.

[0005] To this end, the utility model provides a vibrating screen feeding buffer device, which is installed on the vibrating screen, the vibrating screen includes a screen frame and a screen, the screen is installed in the screen frame, an excitation motor is installed on one side of the screen frame, a feed hopper is fixedly installed on one end of the screen frame, the feed hopper is located above the screen, an arc plate is provided at the intersection of the feed hopper and the screen frame, the arc plate protrudes upward, one side of the arc plate extends to the screen, a support frame is provided below the vibrating screen, and an adjustment component for facilitating the adjustment of the inclination angle of the screen is installed on the support frame.

[0006] Preferably, both sides of the arc-shaped plate are fixedly connected to the feed hopper and the screen frame respectively, and a plurality of transversely arranged convex strips are provided on the arc-shaped plate.

[0007] Preferably, the arc-shaped plate and the convex strips are both made of rubber.

[0008] Preferably, a plurality of springs are provided below the arc-shaped plate, one end of the spring is fixedly mounted on the screen frame, and the other end is fixedly connected to the arc-shaped plate.

[0009] Preferably, a buffer plate arranged to be tilted downward is fixedly mounted on the feed hopper above the arc-shaped plate.

[0010] Preferably, the buffer plate includes a first buffer plate and a second buffer plate, the first buffer plate is arranged on the same side as the arc plate, and the second buffer plate is installed on the feed hopper on the other side, and the installation height of the first buffer plate is higher than the installation height of the second buffer plate.

[0011] Preferably, the adjusting component includes a cylinder, and the front end and the rear end of the bottom of the screen frame are both equipped with the cylinder, the cylinder body of the cylinder is fixedly connected to the support frame, and the output end of the cylinder is hinged to the screen frame.

[0012] Preferably, the adjusting component further includes a connecting frame and a rotating rod, the rotating rods are fixedly installed at the middle positions on both sides of the screen frame, one end of the connecting frame is fixedly installed on the supporting frame, and the other end is rotatably connected to the corresponding rotating rod.

[0013] The beneficial effects of the present invention are as follows: the present invention provides a vibration screen feeding buffer device, which has the following beneficial effects.

[0014] (1) An arc-shaped plate is installed at the upper end of the vibrating screen frame. The arc-shaped plate is made of elastic rubber material, which can effectively reduce the impact force of the vibrating screen feeding, reduce the wear of the screen at the feeding point, extend the service life of the screen, and save costs;

[0015] (2) The setting of multi-layer buffer plates can further reduce the impact of materials on the screen, reduce the frequency of screen damage and replacement, and improve the working efficiency of the vibrating screen;

[0016] ⑶ According to the different screening materials, use the cylinder to adjust the inclination angle of the screen frame. The appropriate inclination angle helps to evenly distribute the material on the screen, improves the screening accuracy, and can also quickly discharge the screened material, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the vibration screen feeding buffer device in Example 1;

[0018] Figure 2 1 is a schematic diagram of the front structure of the vibrating screen feeding buffer device in Example 1;

[0019] Figure 3 is a schematic structural diagram of the curved plate in Example 1;

[0020] Figure 4 Schematic diagram of the structure of the vibration screen feeding buffer device in Example 2;

[0021] Figure 5 Schematic diagram of the structure of the vibration screen feeding buffer device in Example 3;

[0022] Figure 6 It is a structural diagram of the vibrating screen feeding buffer device in Example 4.

[0023] Markings in the figure: 1. Vibrating screen; 11. Screen frame; 12. Screen mesh; 2. Feed hopper; 3. Arc plate; 4. Support frame; 5. Adjusting component; 51. Cylinder; 52. Connecting frame; 53. Rotating rod; 6. Raised strip; 7. Spring; 8. Buffer plate; 81. First buffer plate; 82. Second buffer plate. DETAILED DESCRIPTION

[0024] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0025] Example 1:

[0026] like Figures 1 to 3 As shown, the utility model provides a vibrating screen feeding buffer device, which is installed on a vibrating screen 1, and the vibrating screen 1 includes a screen frame 11 and a screen 12, and the screen 12 is installed in the screen frame 11, and an excitation motor is installed on one side of the screen frame 11. A feed hopper 2 is fixedly installed at one end of the screen frame 11, and the feed hopper 2 is located above the screen 12. An arc plate 3 is provided at the intersection of the feed hopper 2 and the screen frame 11, and the arc plate 3 protrudes upward. One side of the arc plate 3 extends to the screen 12, so that the material can be quickly buffered by the arc plate 3 and fall into the screen 12. A support frame 4 is provided below the vibrating screen 1, and an adjustment component 5 for adjusting the inclination angle of the screen 12 is installed on the support frame 4.

[0027] Furthermore, two sides of the arc-shaped plate 3 are fixedly connected to the feed hopper 2 and the screen frame 11 respectively.

[0028] Furthermore, the adjusting component 5 includes a cylinder 51, and the front end and the tail end of the bottom of the screen frame 11 are both installed with the cylinder 51. The cylinder body of the cylinder 51 is fixedly connected to the support frame 4, and the output end of the cylinder 51 is hinged to the screen frame 11.

[0029] Furthermore, the adjusting component 5 also includes a connecting frame 52 and a rotating rod 53. The rotating rod 53 is fixedly installed at the middle position on both sides of the screen frame 11. One end of the connecting frame 52 is fixedly installed on the supporting frame 4, and the other end is rotatably connected to the corresponding rotating rod 53.

[0030] Specifically, when the screen frame 11 is driven by the cylinder 51 to move, the rotating rod 53 at the middle position of the screen frame 11 rotates synchronously around the connecting frame 52, thereby enhancing the stability of the screen frame 11 during the movement process.

[0031] The working principle of this embodiment is as follows:

[0032] First, adjust the inclination angle of the screen frame 11 according to the specifications of the material so that the material can be evenly distributed on the screen 12 after entering the screen 12, start the cylinder 51, and the output end of the cylinder 51 drives the screen frame 11 to move up and down, and adjust the screen frame 11 to a suitable position.

[0033] Then, the material is transported to the feed hopper 2. The material entering the feed hopper 2 will first fall onto the curved plate 3. The curved plate 3 is made of elastic rubber material, which can effectively reduce the impact force of the incoming material. The material falling onto the curved plate 3 enters the screen 12 for screening.

[0034] After the material screening work is completed, the cylinder 51 can also be started to adjust the inclination angle of the screen frame 11 to discharge the screened materials inside the screen frame 11 and on the screen 12.

[0035] Example 2:

[0036] like Figure 4 As shown, based on embodiment 1, a plurality of transversely arranged ridges 6 are provided on the arc-shaped plate 3 .

[0037] Furthermore, the arc-shaped plate 3 and the convex strips 6 are both made of rubber.

[0038] The setting of the convex strips 6 can increase the friction between the material and the curved plate 3. When the material falls on the curved plate 3, the material will slide toward the lower end of the curved plate 3. At this time, the convex strips 6 can reduce the speed at which the material slides, further reducing the impact force of the material falling onto the screen 12.

[0039] Example 3:

[0040] like Figure 5 As shown, based on Example 2, the difference is that the arc plate 3 is not fixedly installed, and multiple springs 7 are arranged under the arc plate 3. One end of the spring 7 is fixedly installed on the screen frame 11, and the other end is fixedly connected to the arc plate 3.

[0041] The setting of the spring 7 can further provide a better buffering and shock-absorbing effect on the material, further reduce the impact force of the material falling into the screen 12, reduce the wear rate of the screen 12, and increase the service life of the screen 12.

[0042] Example 4:

[0043] like Figure 6As shown, on the basis of Example 3, a buffer plate 8 arranged to be tilted downward is further fixedly mounted on the feed hopper 2 above the arc-shaped plate 3 .

[0044] Furthermore, the buffer plate 8 includes a first buffer plate 81 and a second buffer plate 82. The first buffer plate 81 is arranged on the same side of the arc plate 3, and the second buffer plate 82 is installed on the feed hopper 2 on the other side. The installation height of the first buffer plate 81 is higher than the installation height of the second buffer plate 82.

[0045] Material entering hopper 2 first passes through first buffer plate 81, then follows the inclination of first buffer plate 81 to enter second buffer plate 82. Further buffering by second buffer plate 82 results in the material falling onto curved plate 3 and finally onto screen 12. The multiple layers of buffering applied to material entering screen 12 minimize the impact, protecting screen 12 and extending its service life.

[0046] above Figures 3 to 5 Only the bucket wall on one side of the hopper 2 is drawn in order to more intuitively show the internal buffer device. It does not mean that the bucket walls on the other three sides of the hopper 2 do not exist. The specific shape of the hopper 2 can be referred to Figure 1 and Figure 6 .

[0047] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A vibrating screen feeding buffer device, which is installed on a vibrating screen (1), wherein the vibrating screen (1) comprises a screen frame (11) and a screen mesh (12), wherein the screen mesh (12) is installed in the screen frame (11), and a vibration motor is installed on one side of the screen frame (11), characterized in that: A feed hopper (2) is fixedly mounted on one end of the screen frame (11), and the feed hopper (2) is located above the screen (12). An arc-shaped plate (3) is provided at the intersection of the feed hopper (2) and the screen frame (11), and the arc-shaped plate (3) is upwardly protruding, and one side of the arc-shaped plate (3) extends to the screen (12). A support frame (4) is provided below the vibrating screen (1), and an adjustment component (5) is installed on the support frame (4) for facilitating adjustment of the inclination angle of the screen (12).

2. A vibrating screen feeding buffer device according to claim 1, characterized in that: Both sides of the arc-shaped plate (3) are fixedly connected to the feed hopper (2) and the screen frame (11), respectively. A plurality of transversely arranged convex strips (6) are provided on the arc-shaped plate (3).

3. A vibration screen feeding buffer device according to claim 2, characterized in that: The arc-shaped plate (3) and the convex strip (6) are both made of rubber.

4. A vibration screen feeding buffer device according to claim 1, characterized in that: A plurality of springs (7) are provided below the arc-shaped plate (3), one end of the spring (7) is fixedly mounted on the screen frame (11), and the other end is fixedly connected to the arc-shaped plate (3).

5. The vibrating screen feeding buffer device according to claim 1, characterized in that: A buffer plate (8) arranged in a downward tilt is also fixedly mounted on the feed hopper (2) above the arc-shaped plate (3).

6. A vibration screen feeding buffer device according to claim 5, characterized in that: The buffer plate (8) comprises a first buffer plate (81) and a second buffer plate (82), wherein the first buffer plate (81) is arranged on the same side as the arc-shaped plate (3), and the second buffer plate (82) is installed on the feed hopper (2) on the other side, and the installation height of the first buffer plate (81) is higher than the installation height of the second buffer plate (82).

7. A vibration screen feeding buffer device according to claim 1, characterized in that: The adjusting component (5) includes a cylinder (51), and the front end and the rear end of the bottom of the screen frame (11) are both equipped with the cylinder (51), the cylinder body of the cylinder (51) is fixedly connected to the support frame (4), and the output end of the cylinder (51) is hinged to the screen frame (11).

8. A vibration screen feeding buffer device according to claim 7, characterized in that: The adjusting component (5) further comprises a connecting frame (52) and a rotating rod (53). The rotating rods (53) are fixedly mounted at the middle positions on both sides of the screen frame (11). One end of the connecting frame (52) is fixedly mounted on the supporting frame (4), and the other end is rotatably connected to the corresponding rotating rod (53).

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