Double-layer vibrating screen

Abstract

The utility model relates to the technical field of vibrating screens, in particular to a double-layer vibrating screen. Comprising a first screen; the second screen is arranged above the first screen; the side plates are arranged on the two sides of the first screen and the second screen; the top beam is arranged at the upper end of the side plate and is provided with a vibration source; and the supporting cross beam is arranged at the upper end of the side plate and is provided with an inclined plate. The inclined plates are symmetrically arranged at the two ends of the supporting cross beam, and the included angle between the two inclined plates ranges from 50 degrees to 70 degrees. The supporting beam comprises a first beam body with one end fixedly connected with the side plate and the other end fixedly connected with the inclined plate; the two ends of the second beam body are provided with inclined faces which are fixedly attached to the inclined plates. An end plate is arranged at the outer end of the first beam body and fixedly connected with the side plate. And the inclined surface and the inclined plate are welded and fixed. And the lifting rope is hung on the first beam body. A plurality of damping seats are arranged on the outer sides of the side plates. The supporting cross beam is more stable in structure, and the hoisting operation is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a double-layer vibrating screen. Background Art

[0002] The double-deck vibrating screen is a highly efficient screening equipment. Its core principle is to use vibration to achieve multi-stage screening of feed materials at the same time, and ultimately produce a variety of products that meet different particle size specifications.

[0003] Essentially, a double-deck vibrating screen is an integrated device consisting of two single-deck vibrating screens stacked vertically. These two screens are arranged from top to bottom within the device and typically share a common vibration source. The vibrations generated by the drive are transmitted through the screens to the two layers of screens with different apertures.

[0004] Due to its unique double-layer stacking structure, the double-layer vibrating screen has a relatively larger overall structure size and a significantly increased weight compared to single-layer equipment. This structural characteristic brings two important requirements:

[0005] Increased requirements for structural support: Steel frames, beams and other components that support equipment must be designed to be stronger and more stable to withstand greater dynamic loads and overall weight, ensuring that the equipment will not deform or suffer fatigue damage under strong vibration.

[0006] Increased requirements for installation and maintenance: During the equipment installation and maintenance hoisting process, more reliable hoisting plans and measures need to be adopted, appropriate hoisting equipment should be used, and reasonable hoisting points should be selected to ensure the safety of the large equipment hoisting process and the integrity of the equipment. Utility Model Content

[0007] In order to solve the technical problems existing in the background technology, the utility model provides a double-layer vibrating screen, the supporting beam structure of which is more stable and the hoisting operation is safer.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A double-layer vibrating screen, comprising:

[0010] First sieve;

[0011] a second screen, disposed above the first screen;

[0012] Side plates are provided on both sides of the first screen and the second screen;

[0013] A top beam is provided at the upper end of the side plate and is provided with a vibration source;

[0014] The supporting beam is arranged at the upper end of the side plate and is provided with an inclined plate.

[0015] Furthermore, the inclined plates are symmetrically arranged at both ends of the supporting beam, and the angle between the two inclined plates is 50°-70°.

[0016] Furthermore, the supporting beam includes:

[0017] A first beam body, one end of which is fixedly connected to the side plate, and the other end of which is fixedly connected to the inclined plate;

[0018] The second beam body has inclined surfaces at both ends, and the inclined surfaces are fitted and fixed to the inclined plates.

[0019] Furthermore, an end plate is provided at the outer end of the first beam body, and the end plate is fixedly connected to the side plate.

[0020] Furthermore, the inclined surface and the inclined plate are fixed by welding.

[0021] Furthermore, the suspension rope is hung on the first beam.

[0022] Furthermore, a plurality of shock-absorbing seats are provided on the outer sides of the side panels.

[0023] Beneficial effects of the utility model:

[0024] (1) The supporting beam installed on the upper end of the side panel enhances the stability of the overall structure of the vibrating screen.

[0025] (2) The inclined plate is used to limit the position of the lifting rope on the supporting beam. Its design fits the installation angle of the lifting rope to ensure that the lifting rope is firmly and reliably fixed.

[0026] (3) By adjusting the relative position of the second beam and the first beam, the length of the supporting beam can be changed. In actual assembly, after adjusting the two beams into place and then welding them together, the length of the supporting beam can be precisely matched to the assembly requirements, thereby effectively avoiding the generation of internal stress in the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 It is a schematic diagram of the lifting of the supporting beam;

[0030] Figure 3 This is an exploded view of the support beam.

[0031] In the picture:

[0032] 1. Side panels, 2. First screen, 3. Second screen, 4. Support beam, 5. Top beam, 6. Vibration source, 7. Shock absorber, 8. Lifting rope;

[0033] 41. First beam, 42. Second beam, 43. Inclined plate, 44. End plate, 45. Inclined surface. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 As shown, the specific structure of a double-deck vibrating screen includes a first screen 2 and a second screen 3. The second screen 3 is positioned above the first screen 2. The upper second screen 3 has a larger aperture and is used to separate coarse-grained materials. The lower first screen 2 has a smaller aperture and is used to further screen out medium-grained materials. The finest materials pass through the lower first screen 2 and become the bottom product. This structural design allows for efficient multi-stage screening in a single operation. Side panels 1 are positioned on either side of the first and second screens 2 and 3. A top beam 5 is positioned at the upper end of the side panel 1 and is equipped with a vibration source 6. The first and second screens 2 and 3 share the same vibration source 6. The vibration source 6 drives the first and second screens 2 and 3 to vibrate synchronously. Several shock absorbers 7 are positioned on the outer side of the side panel 1. The shock absorbers 7 consist of several springs. The side panel 1 is secured to the ground via the shock absorbers 7. Support beams 4 are positioned at the upper end of the side panel 1. Support beams 4 are provided in at least two locations. The entire vibrating screen can be lifted by the support beam 4, and the support beam 4 installed on the upper end of the side panel 1 also enhances the stability of the overall structure of the vibrating screen. The support beam 4 is also provided with a raised inclined plate 43, which is used to limit the position of the hanging rope 8 on the support beam 4. The inclined plate 43 is designed to fit the installation angle of the hanging rope 8, ensuring that the hanging rope 8 is firmly and reliably fixed.

[0036] like Figure 2 、 3 As shown, the inclined plates 43 are symmetrically arranged at both ends of the supporting beam 4, with the upper ends of the two inclined plates 43 having a smaller spacing than the lower ends. The two inclined plates 43 form an inverted V shape, and the angle between the two inclined plates 43 is 50°-70°. At this angle, the lifting is most stable when used in conjunction with the lifting rope 8.

[0037] The specific structure of the support beam 4 includes a first beam body 41. One end of the first beam body 41 is fixedly connected to the side panel 1, and the other end of the first beam body 41 is fixedly connected to the inclined plate 43. The second beam body 42 is provided with inclined surfaces 45 at both ends that match the inclined plate 43, and the inclined surfaces 45 are fitted and fixed to the inclined plate 43. The outer end of the first beam body 41 is provided with an end plate 44, which is perpendicular to the first beam body 41 and fixedly connected to the side panel 1. In a specific embodiment, the inclined surface 45 is fixed to the inclined plate 43 by welding. The hanging rope 8 is hung on the first beam body 41. Since the first beam body 41 and the second beam body 42 are matched with the inclined surface, the length of the support beam 4 can be changed by adjusting the longitudinal relative position of the second beam body 42 and the first beam body 41. In actual assembly, after adjusting the two beam bodies into place and then welding and fixing them, the length of the support beam 4 can be accurately matched to the assembly requirements, thereby effectively avoiding the generation of internal stress in the assembly.

[0038] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A double-deck vibrating screen, characterized in that: include: First sieve (2); A second screen (3) is arranged above the first screen (2); Side plates (1) are arranged on both sides of the first screen (2) and the second screen (3); A top beam (5) is provided at the upper end of the side plate (1) and is provided with a vibration source (6); The supporting beam (4) is arranged at the upper end of the side plate (1) and is provided with an inclined plate (43).

2. A double-deck vibrating screen according to claim 1, characterized in that: The inclined plates (43) are symmetrically arranged at both ends of the supporting beam (4), and the angle between the two inclined plates (43) is 50°-70°.

3. A double-deck vibrating screen according to claim 2, characterized in that: The supporting beam (4) comprises: A first beam (41), one end of which is fixedly connected to the side plate (1), and the other end of which is fixedly connected to the inclined plate (43); The second beam body (42) has inclined surfaces (45) at both ends, and the inclined surfaces (45) are fitted and fixed to the inclined plate (43).

4. A double-deck vibrating screen according to claim 3, characterized in that: An end plate (44) is provided at the outer end of the first beam body (41), and the end plate (44) is fixedly connected to the side plate (1).

5. A double-deck vibrating screen according to claim 3, characterized in that: The inclined surface (45) and the inclined plate (43) are welded and fixed.

6. A double-deck vibrating screen according to claim 3, characterized in that: The hanging rope (8) is hung on the first beam (41).

7. The double-deck vibrating screen according to claim 1, characterized in that: A plurality of shock-absorbing seats (7) are provided on the outer sides of the side panels (1).

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