Pneumatic-driven variable-frequency variable-amplitude vibrating mesh screen for grading medium-fine materials

Abstract

The utility model relates to the technical field of material screening, and provides a pneumatic-driven variable-frequency variable-amplitude vibrating mesh screen for grading medium-fine materials, which comprises a screen arranged on an outer frame in a lifting manner; the telescopic pieces are arranged on the outer frame, and the screen is hinged to the telescopic ends of the telescopic pieces. By means of the technical scheme, the problem that in the prior art, when a vibrating mesh screen works, the whole device can generate large vibration is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, and in particular to a pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials. Background Art

[0002] Vibrating screens are widely used in coal, metallurgy, hydropower, mining, building materials, chemicals, electricity, transportation, ports and other industries. Its working principle is to use the vibration motor as the vibration source to make the material be thrown up on the screen and move forward in a straight line. The material enters the feed port of the screening machine evenly from the feeder, and passes through the multi-layer screen to produce several specifications of oversize and undersize, which are discharged from their respective outlets. However, the vibration frequency of the traditional excitation motor is usually fixed. When facing different materials, the vibration generated by the excitation motor cannot fully meet the actual production. Utility Model Content

[0003] The utility model provides a pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials, which solves the problem in the related art that the whole vibrating screen generates relatively large vibration when working.

[0004] The technical solution of the utility model is as follows:

[0005] A pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials, comprising:

[0006] External frame;

[0007] A screen, which is lifted and arranged on the outer frame;

[0008] There are several telescopic parts, which are arranged on the outer frame, and the screen is hinged at the telescopic end of the telescopic part.

[0009] As a further technical solution, the pneumatically driven variable frequency and variable amplitude vibrating screen for fine material classification also includes:

[0010] A control system is arranged on the outer frame, and the control system is used to control the telescopic frequency and amplitude of the telescopic member.

[0011] As a further technical solution, it also includes:

[0012] The visual sensor is arranged on the outer frame.

[0013] As a further technical solution, the screen has a plurality of screens, which are arranged in sequence and at intervals, and further comprises:

[0014] The two ends of the flexible screen plate are respectively connected to two adjacent screens.

[0015] As a further technical solution, it also includes:

[0016] A feed beam is arranged on the outer frame and is located on one side of the screen;

[0017] A feed plate is arranged on the feed beam, the feed plate is arranged obliquely, the height of the feed plate gradually increases toward the end away from the telescopic member, and the lowest end of the feed plate is higher than the screen.

[0018] As a further technical solution, it also includes:

[0019] A discharging beam is arranged on the side of the outer frame away from the feeding beam. The discharging beam is provided with a discharging plate, which is arranged obliquely. The height of the discharging plate gradually decreases toward the side away from the feeding beam, and the highest end of the discharging plate is lower than the screen.

[0020] As a further technical solution, it also includes:

[0021] There are several supports, which are arranged on the outer frame and are used to fix the outer frame.

[0022] The working principle and beneficial effects of the utility model are:

[0023] In the utility model, the outer frame is used to block the material, and the screen is driven by the telescopic parts to continuously rise and fall, so that the material on the screen is successfully screened by the screen. The screen is a conventional square, and can also be round or other shapes. The telescopic parts are cylinders, and multiple cylinders are respectively arranged at the four corners of the screen to jointly control the lifting of the screen. Multiple telescopic parts ensure that each position of the screen is driven by the corresponding telescopic parts to prevent the weight of the material on the screen from being too heavy and causing the material to crush the screen, thereby preventing the waste of materials, improving the screening efficiency of the materials, and improving the screening quality. Using a cylinder as a vibration generating part, compared with a common vibration motor, the vibration of the outer frame is smaller, which is not only conducive to the fixation of the outer frame, but also can prevent the vibration screen as a whole from damaging the ground, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the control system in the structure of the utility model;

[0027] In the figure: 1. outer frame, 2. screen, 3. telescopic part, 4. control system, 5. visual sensor, 6. flexible screen plate, 7. feed beam, 8. feed plate, 9. discharge beam, 10. discharge plate, 11. support. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] Reference Figure 1~Figure 2 , which is an embodiment of the utility model, proposes a pneumatically driven variable frequency and variable amplitude vibrating screen for grading medium and fine materials, including: a screen 2 is lifted and arranged on an outer frame 1; a plurality of telescopic members 3 are arranged on the outer frame 1, and the screen 2 is hinged at the telescopic end of the telescopic member 3.

[0032] In this embodiment, the outer frame 1 is used to block the material, and the screen 2 is driven by the telescopic member 3 to continuously rise and fall, so that the material on the screen 2 is successfully screened by the screen 2. The screen 2 is a conventional square, and can also be circular or other shapes. The telescopic member 3 is a cylinder, and multiple telescopic members 3 are respectively arranged at the four corners of the screen to jointly control the lifting or vibration of the screen 2, ensuring that each position of the screen 2 is supported and driven by the corresponding cylinder, preventing the material on the screen 2 from being too heavy and causing the material to crush the screen 2, preventing the waste of materials, improving the screening efficiency of the materials, and improving the screening quality. Using a cylinder as a vibration generating component, compared with a common vibration motor, the vibration of the outer frame 1 is smaller, which is not only conducive to the fixation of the outer frame 1, but also can prevent the vibration screen from damaging the ground as a whole, thereby improving the safety of the device.

[0033] As a further technical solution, it also includes: a control system 4 is arranged on the outer frame 1, and the control system 4 is used to control the telescopic frequency and amplitude of the telescopic member 3.

[0034] In this embodiment, the control system 4 controls the movement of multiple telescopic parts 3 on the outer frame 1. Since the telescopic parts 3 are hinged to the screen 2, the screen 2 can be appropriately tilted in addition to normal lifting and lowering. The control system 4 controls each cylinder individually so that it can move according to the settings, so that the screen 2 itself can be tilted or other operations can be performed in various directions, so that the vibrating screen itself can adapt to a variety of materials, thereby improving the applicability of the equipment. At the same time, the structure is simple, the production is convenient, and the production cost is low.

[0035] As a further technical solution, the control system 4 relies on remote signal control and also includes: a visual sensor 5 is arranged on the external frame 1.

[0036] In this embodiment, the visual sensor 5 is used to monitor the screening process in real time, and transmits a signal to the control system 4 when a situation occurs so that it can make appropriate adjustments to the telescopic member 3, thereby ensuring the smooth progress of the screening. At the same time, the visual sensor 5 can also transmit signals to other media, so that employees can monitor the screening situation in real time, which is convenient for judging the operating status of the screening steps, making it more convenient for operators to use, saving a lot of labor, and reducing the intensity of work.

[0037] As a further technical solution, there are a plurality of screens 2 which are arranged in sequence and at intervals, and further include: two ends of the flexible screen plate 6 are respectively connected to two adjacent screens 2 .

[0038] In this embodiment, the screen 2 is square, and four telescopic parts 3 jointly control the lifting state of a screen 2. Through the combination of multiple screens 2, multiple screens 2 can be combined to form vibrating screens of different shapes, and the apertures of different screens 2 can also be used to help the vibrating screen to achieve segmented screening and multiple screening functions. The flexible screen plate 6 connects the gaps between the screens 2, and the flexible screen plate 6 also has pores, which can screen the material and prevent the material from falling through the gaps, thereby improving the screening quality of the vibrating screen and avoiding the waste of materials.

[0039] As a further technical solution, it also includes: a feed beam 7 is arranged on the outer frame 1 and is located on one side of the screen 2;

[0040] The feed plate 8 is arranged on the feed beam 7 . The feed plate 8 is arranged tilted. The height of the feed plate 8 gradually increases toward the end away from the telescopic member 3 . The lowest end of the feed plate 8 is higher than the screen 2 .

[0041] In this embodiment, the feed beam 7 and the feed plate 8 are both located on the feed side. When the material is placed in the feed plate 8, the material will enter the screen 2 due to the inclination of the feed plate 8, thereby completing the material transportation. The use of the feed plate 8 simplifies the difficulty of feeding and prevents the material from falling. It not only optimizes the user's feeding method, reduces the waste of materials that may occur during the feeding process, and improves the cleanliness of the production site, but also saves the customer's time in cleaning the site.

[0042] As a further technical solution, it also includes: a discharging beam 9 is arranged on the side of the outer frame 1 away from the feeding beam 7, and a discharging plate 10 is provided on the discharging beam 9, the discharging plate 10 is arranged obliquely, and the height of the discharging plate 10 gradually decreases toward the side away from the feeding beam 7, and the highest end of the discharging plate 10 is lower than the screen 2.

[0043] In this embodiment, the discharge beam 9 has a similar function to the feed beam 7 and can also assist in discharging materials, thereby simplifying the discharging steps, avoiding waste of materials, and preventing the screened materials from being difficult to collect. This ensures the cleanliness of the site for use, saves the user's time and frequency of cleaning the site, and optimizes the operator's experience.

[0044] As a further technical solution, it also includes: there are a plurality of supports 11 arranged on the outer frame 1, and the supports 11 are used to fix the outer frame 1.

[0045] In this embodiment, multiple supports 11 are arranged on the same plane, and the bottom surface is made flat, so that the bracket can be stably placed in other positions. The supports 11 jointly support the outer frame 1. When the supports 11 are needed for support, the supports 11 will be placed on a load-bearing base and fixed with matching bolts or other items to ensure the stability of the outer frame 1. At the same time, the action of the cylinder is used as the screening power of the vibrating screen, and no vibration will be transmitted to the outer frame 1 and the supports 11. Therefore, the supports 11 will not damage the fixed surface, thereby improving the safety of the device.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials, characterized in that: include: External frame (1); A screen (2) is arranged on the outer frame (1) in a lifting manner; A plurality of telescopic members (3) are provided on the outer frame (1), and the screen (2) is hinged at the telescopic end of the telescopic member (3).

2. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 1, characterized in that: Also includes: A control system (4) is arranged on the outer frame (1), and the control system (4) is used to control the telescopic frequency and amplitude of the telescopic member (3).

3. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 2, characterized in that: Also includes: A visual sensor (5) is arranged on the outer frame (1).

4. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 1, characterized in that: The sieves (2) are provided in a plurality of spaces and arranged in sequence, and further include: The flexible screen plate (6) has two ends respectively connected to two adjacent screens (2).

5. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 1, characterized in that: Also includes: A feed beam (7) is arranged on the outer frame (1) and is located on one side of the screen (2); A feed plate (8) is arranged on the feed beam (7), the feed plate (8) is arranged at an angle, the height of the feed plate (8) gradually increases towards the end away from the telescopic member (3), and the lowest end of the feed plate (8) is higher than the screen (2).

6. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 5, characterized in that: Also includes: A discharge beam (9) is arranged on a side of the outer frame (1) away from the feed beam (7), and a discharge plate (10) is provided on the discharge beam (9). The discharge plate (10) is arranged at an angle, and the height of the discharge plate (10) gradually decreases toward the side away from the feed beam (7), and the highest end of the discharge plate (10) is lower than the screen (2).

7. The pneumatically driven variable frequency and variable amplitude vibrating screen for classifying medium and fine materials according to claim 1, characterized in that: Also includes: A plurality of supports (11) are provided on the outer frame (1); the supports (11) are used to fix the outer frame (1).

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