A vibrating screen

Abstract

The utility model relates to screening equipment technical field discloses a vibrating screen, including outer frame beam, vibration support, grating, a plurality of mounting support and a plurality of elastic support mechanism, vibration support is installed on the outer frame beam upper end face through bolt, and vibration motor is supported and installed on vibration support, and grating is welded on the outer frame beam continuously, and the screen cloth is equipped between grating, a plurality of mounting support is symmetrical and welded on the outer frame beam, and one elastic support mechanism is arranged below each mounting support. The elastic support mechanism includes hollow iron pipe welded on the lower end surface of mounting support, and the hollow iron pipe is equipped with spring. In the utility model, have the characteristics that maintenance is convenient, the structure of screen cloth makes vibration motor drive, and installation is convenient, and the safety factor is high, and the structure of support crossbeam is light and small cross section, saves material layer space, reduces the vibration quality, has low maintenance cost, high work efficiency, and the equipment operation noise is small.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and in particular to a vibrating screen. Background Technology

[0002] Vibrating screens are frequently used in the production of solid granular or powdered materials. A typical vibrating screen includes a screen frame, screen mesh, springs connected to the screen frame, and a vibrating motor. The vibrating motor vibrates the screen mesh, allowing small particles to pass through and fall through, while larger particles are blocked on the screen, thus achieving the purpose of screening and grading the materials.

[0003] Generally, rotary vibrating screens are used for operation, employing spring damping. However, the vibration effect is unsatisfactory, and the springs have a short lifespan. Solving the problems of uneven spring force and poor screen vibration has always been a subject of continuous exploration for relevant technicians in this field. To address these issues, numerous measures have been taken. One measure is to increase the vibration intensity of the vibrating screen. However, this method is often easily limited by the rigidity of the screen box, resulting in insufficient power for material dispersion, stratification, and interlayer movement on the screen surface. Therefore, we propose a new type of vibrating screen. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a vibrating screen to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A vibrating screen, comprising: An outer frame beam and a vibration support, wherein the vibration support is installed on the upper end face of the outer frame beam and a vibration motor is supported and installed on the vibration support; The grid is continuously welded to the outer frame beam, and a screen is provided between the grids; Multiple mounting supports are symmetrically welded to the outer frame beam; Multiple flexible support mechanisms are provided, with one flexible support mechanism disposed below each of the mounting supports.

[0006] In some embodiments, the elastic support mechanism includes a hollow iron pipe welded to the lower end face of the mounting bracket, a spring is provided inside the hollow iron pipe, a spring base is welded to the bottom end of the spring, and an inner guide cylinder is provided on the upper end face of the spring base and inside the spring.

[0007] In some embodiments, the inner diameter of the hollow iron tube is greater than the diameter of the spring, and the length of the hollow iron tube is shorter than the length of the spring when it is not compressed.

[0008] In some embodiments, the mounting bracket is formed by welding two trapezoidal iron plates and one rectangular iron plate.

[0009] In some embodiments, the system further includes three upper baffles, which are located above the outer frame beam and continuously welded to three sides of the outer frame beam, with the upper baffles forming an angle of 60° with the horizontal plane.

[0010] In some embodiments, a lower baffle plate is welded to the lower part of the outer frame beam.

[0011] In some embodiments, the vibratory motor is provided with a motor cover.

[0012] In some embodiments, the upper end face of the hollow iron tube is further fixed with an outer guide cylinder that can be sleeved outside the spring. The outer wall of the outer guide cylinder is provided with a groove, and a compression spring is provided in the groove. The free end of the compression spring is connected to a limiting post, and the hollow iron tube is provided with a vertical through hole for the end of the limiting post to pass through.

[0013] This utility model has the following beneficial effects: 1. The vibrating screen proposed in this utility model has the characteristics of convenient maintenance. The structure of the screen is driven by the vibrating motor, which is convenient for installation and replacement and has a high safety factor. In addition, the structure of the supporting beam is lightweight and has a small cross-sectional area, saving material layer space and reducing the vibrating mass. It has the characteristics of low maintenance cost, high working efficiency and low noise during equipment operation.

[0014] 2. The vibrating screen proposed in this utility model can first retract the outer end of the limiting column into the groove when installing the welding spring and the spring base. Then, the outer guide cylinder is inserted into the hollow iron pipe. As the outer end of the limiting column reaches the through hole position, the compressed spring causes the limiting column to bulge outward through the through hole, which can restrict the spring and the spring base. This makes installation convenient and facilitates subsequent disassembly and replacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a vibrating screen proposed in this utility model; Figure 2 This is a top view of the structure of a vibrating screen proposed in this utility model; Figure 3 This utility model Figure 1 Enlarged view of point A in the image; Figure 4 This is a schematic diagram of the elastic support mechanism in the second embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a hollow iron pipe for a vibrating screen proposed in this utility model; Figure 6 This utility model Figure 4 Enlarged view of point B in the image.

[0016] Explanation of reference numerals in the attached figures: 1. Vibration motor; 2. Vibration support; 3. Grating; 4. Outer frame beam; 5. Mounting supports; 51. Trapezoidal iron plate; 52. Rectangular iron plate; 6. Screen; 7. Elastic support mechanism; 71. Spring; 72. Hollow iron pipe; 73. Spring base; 74. Inner guide cylinder; 75. Perforation; 76. Groove; 77. Compression spring; 78. Limiting post; 79. Outer guide cylinder; 8. Upper baffle plate; 9. Motor guard; 10. Lower baffle plate. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please see Figures 1-3 As shown, this utility model provides a specific embodiment: A vibrating screen includes a vibrating support 2, a grid 3, an outer frame beam 4, multiple mounting supports 5, a screen 6, and multiple elastic support mechanisms 7. Four connection holes are drilled in the outer frame beam 4 and the vibrating support 2. The vibrating support 2 is connected to the outer frame beam 4 using high-strength M16*90 bolts and high-strength M16 nuts. Spring washers and flat washers are provided at the connection points to ensure a tight connection. A vibrating motor 1, preferably a YZD-20-6 vibrating motor, is supported and mounted on the vibrating support 2. The vibrating motor 1 is equipped with a motor cover 9 to protect the vibrating motor. Machine 1 is connected to the outer frame beam 4 by bolts and nuts. The grid 3 is continuously welded to the outer frame beam 4. Multiple mounting supports 5 are symmetrically welded to the outer frame beam 4. Each mounting support 5 is made of two trapezoidal iron plates 51 and a rectangular iron plate 52. An elastic support mechanism 7 is set below each mounting support 5. The screen 6 is installed between the grids 3. The screen 6 adopts a dense honeycomb structure, which can make the material fall evenly. In this vibrating screen, two screens 6 are welded and spliced ​​into a whole above the outer frame beam 4, and the four sides are continuously welded together.

[0019] This vibrating screen preferably has ten mounting supports 5, the distribution of which is shown in the figure. Figure 2 At the same time, ten elastic support mechanisms 7 are also set accordingly.

[0020] In addition, see Figure 1As shown, it also includes three upper baffle plates 8, which are located above the outer frame beam 4 and continuously welded to the three sides of the outer frame beam 4, and the upper baffle plates 8 have an angle of 60° with the horizontal plane.

[0021] A lower baffle plate 10 is welded to the bottom of the outer frame beam 4.

[0022] In the specific implementation method, see [reference] Figure 1 and Figure 3 As shown, the elastic support mechanism 7 includes a hollow iron pipe 72 welded to the lower end face of the mounting bracket 5. A spring 71 is provided inside the hollow iron pipe 72. A spring base 73 is welded to the bottom end of the spring 71. An inner guide cylinder 74 is provided on the upper end face of the spring base 73 and inside the spring 71. The inner diameter of the hollow iron pipe 72 is larger than the diameter of the spring 71 so that the spring 71 can be properly fitted. The length of the hollow iron pipe 72 is shorter than the length of the spring 71 when it is not compressed, preferably one-third of the length of the spring 71 when it is not compressed.

[0023] The working principle of this utility model is as follows: the material to be screened (such as sand and gravel) is poured onto the screen 6, the vibration motor 1 is started, the vibration motor 1 drives the screen 6 to vibrate, the material moves and is layered in the screen 6, and falls to the bottom of the vibrating screen under the obstruction of the lower baffle plate 10. The stability of the vibrating screen can be effectively improved by the shock absorption of the elastic support mechanism 7.

[0024] Example 2: Please see Figure 5 As shown, this embodiment is an extension based on the first set of embodiments; Specifically, an outer guide cylinder 79 that can be sleeved outside the spring 71 is fixed on the upper end face of the hollow iron pipe 72. The outer wall of the outer guide cylinder 79 is provided with a groove 76, and a compression spring 77 is provided in the groove 76. The free end of the compression spring 77 is connected to a limiting post 78. A vertical through hole 75 is provided on the hollow iron pipe 72 for the end of the limiting post 78 to pass through. In the natural state of the compression spring 77, the outer end of the limiting post 78 passes through the through hole 75.

[0025] With the above technical solution, when installing the welding spring 71 and the spring base 73, the outer end of the limiting post 78 can be pressed first to retract the outer end of the limiting post 78 into the groove 76. Then, the outer guide tube 79 is inserted into the hollow iron tube 72. When the outer end of the limiting post 78 reaches the position of the through hole 75, the compressed spring 77 causes the limiting post 78 to bulge outward through the through hole 75, which can restrict the spring 71 and the spring base 73. This makes installation convenient and facilitates subsequent disassembly and replacement.

[0026] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0027] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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, characterized in that, include: The outer frame beam (4) and the vibration support (2) are installed on the upper end face of the outer frame beam (4), and a vibration motor (1) is supported on the vibration support (2). The grille (3) is continuously welded to the outer frame beam (4), and a screen (6) is provided between the grilles (3). Multiple mounting supports (5) are symmetrically welded to the outer frame beam (4); Multiple elastic support mechanisms (7), with one elastic support mechanism (7) provided below each of the mounting supports (5); The elastic support mechanism (7) includes a hollow iron pipe (72) welded to the lower end face of the mounting bracket (5), a spring (71) is provided inside the hollow iron pipe (72), a spring base (73) is welded to the bottom end of the spring (71), and an inner guide cylinder (74) is provided on the upper end face of the spring base (73) and inside the spring (71). The inner diameter of the hollow iron tube (72) is greater than the diameter of the spring (71), and the length of the hollow iron tube (72) is shorter than the length of the spring (71) when it is not compressed. The upper end face of the hollow iron tube (72) is also fixed with an outer guide cylinder (79) that can be sleeved outside the spring (71). The outer wall of the outer guide cylinder (79) is provided with a groove (76). A compression spring (77) is provided in the groove (76). The free end of the compression spring (77) is connected to a limit post (78). The hollow iron tube (72) is provided with a vertical through hole (75) for the end of the limit post (78) to pass through.

2. The vibrating screen according to claim 1, characterized in that: The mounting bracket (5) is welded together from two trapezoidal iron plates (51) and a rectangular iron plate (52).

3. The vibrating screen according to claim 1, characterized in that: It also includes three upper baffle plates (8), which are located above the outer frame beam (4) and continuously welded to the three sides of the outer frame beam (4), and the upper baffle plates (8) have an angle of 60° with the horizontal plane.

4. The vibrating screen according to claim 3, characterized in that: A lower baffle plate (10) is welded to the bottom of the outer frame beam (4).

5. The vibrating screen according to claim 1, characterized in that: The vibratory motor (1) is provided with a motor cover (9) on its exterior.

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