A multi-stage dry screening machine

Abstract

The utility model discloses a multistage dry method screening machine, including fixed base, vibration base and install multistage screen tray on vibration base, and the spring is fixed between vibration base and fixed base, the top of multistage screen tray is provided with the suspension frame, and the suspension frame below is connected with the many suspension vibration base's cable, and the outside of multistage screen tray is provided with the support frame, and the suspension frame is hung below the support frame through the connecting cable, and the support frame and fixed base are all fixed in workshop ground through fixed bolt. The utility model discloses through setting up support frame, suspension frame and cable suspension vibration base, and the cable can be deformed to make vibration base still can drive multistage screen tray vibrating screening when vibrating, and the spring only plays the role of stabilizing equipment below, is not affected by its ageing fatigue, makes multistage screen tray can always vibrate stably, has solved the ageing fatigue of the spring of the multistage dry method vibrating screening machine of current, and the higher load of leading to easily, influence use's problem.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screening machine technology, specifically a multi-stage dry screening machine. Background Technology

[0002] Vibrating screens are a type of high-efficiency dry screening equipment. Their main function is to classify, remove impurities, filter, and separate materials. They use a specially designed high-performance vertical vibrating motor, which is powerful and can support long-term operation. All parts of the machine body that come into contact with materials are made of first-grade stainless steel plates, which are hygienic, sterile, and corrosion-resistant. The multi-stage screens use advanced mesh stretching technology, which results in high screening accuracy and wide application.

[0003] In existing multi-stage dry vibrating screens, the fixed base and the vibrating base are connected by spring supports. The vibrating motor is mounted on the vibrating base, and the springs need to simultaneously bear the weight of the vibrating motor, the multi-stage screen discs, and the materials inside the screen discs, while also providing elastic support. During our long-term use of multi-stage dry vibrating screens, we found that the springs bear very high loads and are very prone to aging and fatigue. The aging and fatigue of some springs can also lead to overall instability in the support, significantly affecting usability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-stage dry screening machine, which solves the problem that the high load on the springs of existing multi-stage dry vibrating screening machines leads to easy aging and fatigue, affecting their use.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A multi-stage dry screening machine includes a fixed base, a vibrating base, and a multi-stage screening disc mounted on the vibrating base. A spring is fixed between the vibrating base and the fixed base. A suspension frame is provided above the multi-stage screening disc. Multiple suspension cables for suspending the vibrating base are connected below the suspension frame. A support frame is provided outside the multi-stage screening disc. The suspension frame is suspended below the support frame by connecting cables. Both the support frame and the fixed base are fixed to the workshop floor by fixing bolts.

[0007] Preferably, the bottom of the suspension frame and the perimeter of the vibration base are both fixed with lifting lugs, and the two ends of the suspension cable are respectively fixed to the lifting lugs at corresponding positions between the suspension frame and the vibration base.

[0008] Preferably, the lifting lugs around the vibrating base are fixedly arranged at equal intervals along the circumference of the vibrating base.

[0009] Preferably, the support legs of the support frame are horizontally provided with support feet at their bottom, and the corresponding fixing bolts of the support frame are installed on the support feet.

[0010] Preferably, the surface of the fixing bolt is fitted with a buffer pad located on the bottom flange of the fixing base and above the support foot.

[0011] Preferably, the support leg is tilted outward.

[0012] Preferably, a screw is vertically and movably inserted into the support frame, a positioning nut is installed on the surface of the screw above the support frame, and a fixing ring for fixing the connecting cable is fixed at the lower end of the screw and the top of the suspension frame.

[0013] Preferably, a lifting ring is fixed to the upper end of the screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention suspends the vibrating base by setting up a support frame, a suspension frame, and a suspension cable. The deformable suspension cable allows the vibrating base to still drive the multi-stage screen discs to vibrate and screen during vibration. The springs below only serve to stabilize the equipment and are not affected by aging or fatigue. This ensures that the multi-stage screen discs can always vibrate smoothly, solving the problem that the springs of existing multi-stage dry vibrating screening machines have high load-bearing capacity, which leads to easy aging and fatigue and affects their use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0018] Figure 3 This is a top view of a partial structure of the suspension bracket of this utility model at the corresponding position.

[0019] In the diagram: 1. Fixed base; 2. Vibrating base; 3. Multi-stage screen; 4. Spring; 5. Suspension frame; 6. Suspension cable; 7. Support frame; 701. Support leg; 702. Support foot; 8. Connecting cable; 9. Fixing bolt; 10. Lifting lug; 11. Buffer pad; 12. Screw; 13. Positioning nut; 14. Fixing ring; 15. Lifting ring. Detailed Implementation

[0020] 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.

[0021] like Figure 1-3As shown, this utility model provides a technical solution: a multi-stage dry screening machine, including a fixed base 1, a vibrating base 2 and a multi-stage sieve disc 3 installed on the vibrating base 2. A spring 4 is fixed between the vibrating base 2 and the fixed base 1, and a suspension frame 5 is provided above the multi-stage sieve disc 3.

[0022] Multiple suspension cables 6 are connected to the bottom of the suspension frame 5 to suspend the vibration base 2. The bottom of the suspension frame 5 and the perimeter of the vibration base 2 are fixed with lifting lugs 10. The two ends of the suspension cables 6 are respectively fixed to the lifting lugs 10 at corresponding positions between the suspension frame 5 and the vibration base 2. The lifting lugs 10 around the vibration base 2 are fixed at equal intervals along the circumference of the vibration base 2.

[0023] The multi-stage screen 3 is provided with a support frame 7 on the outside. The suspension frame 5 is suspended below the support frame 7 by a connecting cable 8. Both the hanging cable 6 and the connecting cable 8 are steel cables to ensure flexible connection deformation. A screw 12 is vertically and movably inserted on the support frame 7. A positioning nut 13 located above the support frame 7 is installed on the surface of the screw 12. The lower end of the screw 12 and the top of the suspension frame 5 are fixed with a fixing ring 14 for fixing the connecting cable 8. A hanging ring 15 is fixed at the upper end of the screw 12.

[0024] Both the support frame 7 and the fixed base 1 are fixed to the workshop floor by fixing bolts 9. The support legs 701 of the support frame 7 are horizontally provided with support feet 702. The corresponding fixing bolts 9 of the support frame 7 are installed on the support feet 702. The surface of the fixing bolts 9 is fitted with buffer pads 11 located on the bottom flange of the fixed base 1 and above the support feet 702. The support legs 701 are inclined outward.

[0025] Working principle:

[0026] Both the support frame 7 and the fixed base 1 are fixedly installed on the workshop floor by fixing bolts 9. The suspension frame 5 is lifted upward by a crane or other equipment through the lifting ring 15 and the connecting cable 8, so that the connecting cable 8 is tensioned. The position of the screw 12 is fixed by the positioning nut 13, thereby fixing the height position of the vibrating base 2 and the multi-stage screen 3. The material is added to the multi-stage screen 3, and the vibrating motor of the vibrating base 2 drives the multi-stage screen 3 to vibrate and screen. During vibration, both the lifting cable 6 and the connecting cable 8 can bend and deform, so that the multi-stage screen 3 is suspended stably without affecting its vibration. The lower spring 4 only plays a stabilizing role for the vibrating base 2, preventing the lifting cable 6 and the connecting cable 8 from swaying too much. The vibrating base 2 mainly relies on the lifting cable 6 for suspension and is not affected by the aging of the spring 4 in screening materials.

[0027] It should be noted that, in this document, terms such as “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.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage dry screening machine, comprising a fixed base (1), a vibrating base (2), and a multi-stage screening disc (3) mounted on the vibrating base (2), wherein a spring (4) is fixed between the vibrating base (2) and the fixed base (1), characterized in that: A suspension frame (5) is provided above the multi-stage screen (3), and multiple suspension cables (6) for the suspension vibration base (2) are connected below the suspension frame (5). A support frame (7) is provided outside the multi-stage screen (3). The suspension frame (5) is suspended below the support frame (7) by a connecting cable (8). The support frame (7) and the fixed base (1) are both fixed to the workshop floor by fixing bolts (9).

2. The multi-stage dry screening machine according to claim 1, characterized in that: The bottom of the suspension frame (5) and the perimeter of the vibration base (2) are both fixed with lugs (10), and the two ends of the suspension cable (6) are respectively fixed on the lugs (10) at the corresponding positions between the suspension frame (5) and the vibration base (2).

3. The multi-stage dry screening machine according to claim 2, characterized in that: The lugs (10) around the vibrating base (2) are fixedly installed at equal intervals along the circumference of the vibrating base (2).

4. A multi-stage dry screening machine according to claim 1, characterized in that: The support leg (701) of the support frame (7) is horizontally provided with a support foot (702) at the bottom, and the corresponding fixing bolt (9) of the support frame (7) is installed on the support foot (702).

5. A multi-stage dry screening machine according to claim 4, characterized in that: The surface of the fixing bolt (9) is fitted with a buffer pad (11) located above the bottom flange of the fixing base (1) and the support foot (702).

6. A multi-stage dry screening machine according to claim 4, characterized in that: The support leg (701) is inclined outward.

7. A multi-stage dry screening machine according to claim 1, characterized in that: A screw (12) is vertically and movably inserted into the support frame (7). A positioning nut (13) located above the support frame (7) is installed on the surface of the screw (12). A fixing ring (14) for fixing the connecting cable (8) is fixed at the lower end of the screw (12) and the top of the suspension frame (5).

8. A multi-stage dry screening machine according to claim 7, characterized in that: A lifting ring (15) is fixed to the upper end of the screw (12).

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