Vibrating screen system and control method

Abstract

The invention relates to a vibrating screen system and a control method. The vibrating screen system comprises a vibrating screen and an elastic system installed on the vibrating screen. The vibrating screen comprises a base, a screen body, a driving assembly and air springs, the screen body is obliquely arranged and fixedly installed on the base through the air springs, a screen mesh is fixedly installed in the screen body, the driving assembly is fixedly installed on the base, and the air springs are connected with the elastic system. The elastic system comprises an air pressure control element, an air pump, a signal converter and a control unit. According to the vibration screen, the air spring is regulated and controlled through the elastic system, the working state of the air spring can be monitored in real time, a real-time basis is provided for a control decision, the screening effect of the vibration screen is optimized, and the screening efficiency and quality are improved. In addition, the control strategy can be automatically adjusted according to the load change and the change of the working environment, and it is ensured that the vibrating screen can keep the optimal operation state under different working conditions.

Description

Technical Field

[0001] The present invention relates to the field of vibrating screens, and in particular to a vibrating screen system and a control method. Background Art

[0002] An air spring is a mechanism that controls the hardness of a spring by charging or discharging high-pressure gas. It uses an elastomer made of rubber, polyurethane, silicone and other materials to change the stiffness and height of the spring by adjusting the pressure of the internal gas. In vibrating screens, air spring systems are often used as vibration isolators to reduce the impact of vibration and noise generated by the vibrating screen during operation on the surrounding environment. At the same time, air springs can also improve the stability and accuracy of the vibrating screen, thereby increasing screening efficiency and service life.

[0003] During the operation of the vibrating screen, the weight and center of gravity of the machine will change, so the air spring needs to be adjusted to the appropriate stiffness and hardness to improve the stability of the vibrating screen operation. Summary of the invention

[0004] In view of this, the present invention aims to provide a vibrating screen system and a control method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] This embodiment provides a vibrating screen system, including a vibrating screen and an elastic system installed on the vibrating screen;

[0007] The vibrating screen comprises a base, a screen body, a driving assembly, and an air spring. The screen body is tilted and fixedly mounted on the base through the air spring. A screen is fixedly mounted inside the screen body. The driving assembly is fixedly mounted on the base. Each of the air springs is connected to the elastic system respectively.

[0008] The elastic system includes an air pressure control element, an air pump, a signal converter, and a control unit;

[0009] The air pressure control element is connected to the air spring, the air pump is connected to the air pressure control element, the air pressure control element is electrically connected to the control unit via a signal converter, and the air pump is electrically connected to the control unit.

[0010] Furthermore, the air spring is arranged at the top and the tail of the base, and the bottom of the air spring is fixedly connected to the top of the base.

[0011] Furthermore, air springs connected to the elastic system are also fixedly provided on the front and rear sides of the bottom of the base.

[0012] Furthermore, the air spring is fixedly connected to the base via a spring seat.

[0013] Furthermore, the driving assembly includes a motor and an agitator, the agitator is fixedly mounted on the screen body, and the motor is connected to the agitator.

[0014] Furthermore, an emergency valve is installed on the pipeline between the air spring and the air pressure control element.

[0015] Furthermore, a pressure gauge and an air tank are installed on the pipeline between the air pressure control element and the air pump.

[0016] This embodiment further provides a control method, which is applied to the above-mentioned vibrating screen system and includes the following steps:

[0017] S1, start the vibrating screen, and the air pressure control element receives the air pressure data of each air spring;

[0018] S2, the air pressure control element converts the received air pressure data into a signal through a signal converter and transmits it to the control unit;

[0019] S3, the control unit analyzes and processes the signal to determine whether each air spring is pressurized or depressurized;

[0020] S4, the control unit sends a pressurization or decompression signal to the air pump, and controls the air pump to pressurize or decompress the air spring.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] In the present invention, the air spring is regulated by the elastic system, so that the working state of the air spring can be monitored in real time, providing a real-time basis for control decision-making, which is helpful to optimize the screening effect of the vibrating screen and improve the screening efficiency and quality. In addition, the control strategy can be automatically adjusted according to the load change and the working environment change, ensuring that the vibrating screen can maintain the best operating state under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front view of the present invention;

[0026] Figure 3 A top view of the present invention;

[0027] Figure 4 It is a schematic diagram of the elastic system structure of the present invention;

[0028] Figure 5 It is a flow chart of the control method of the present invention.

[0029] Description of reference numerals:

[0030] 1. Base; 2. Screen body; 3. Spring seat; 4. Air spring; 401. Emergency valve; 402. Air pressure control element; 403. Pressure gauge; 404. Air tank; 405. Air pump; 406. Signal converter; 407. Control unit; 5. Agitator; 6. Motor; 7. Screen. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0034] The following will refer to the attached Figures 1 to 5 The present invention is described in detail with reference to embodiments.

[0035] Embodiment 1

[0036] In general, this embodiment proposes a vibrating screen system, which includes two parts, a vibrating screen and an elastic system installed on the vibrating screen. The vibrating screen is used to screen materials, and the elastic system is used to regulate the air spring 4 on the vibrating screen, thereby improving the stability of the vibrating screen operation.

[0037] like Figures 1 to 4As shown, the vibrating screen includes a base 1, a screen body 2, a driving assembly, and an air spring 4. The screen body 2 is tilted and fixedly mounted on the base 1 through the air spring 4. A screen mesh 7 is fixedly mounted inside the screen body 2. The driving assembly is fixedly mounted on the base 1, and each air spring 4 is respectively connected to the elastic system.

[0038] During specific implementation, the driving device is started to drive the screen body 2 to vibrate on the base 1. This vibration can be circular motion, elliptical motion or linear vibration, etc. On the screen 7, the material is subjected to the vibration force and begins to separate into different particle sizes. Materials larger than the sieve holes are retained on the screen 7, while materials smaller than the sieve holes fall into the lower layer or the designated output port through the screen 7. The materials are continuously subjected to the vibration force on the screen 7 and are continuously screened. The screened materials are output to different locations according to the particle size. It should be noted that the vibration reduction and buffering effect of the air spring 4 enables the screen body 2 to maintain a stable vibration state, which helps to improve the screening efficiency. The stable vibration state can ensure the uniform distribution and effective screening of the material on the screen surface, thereby improving the screening quality and output.

[0039] As a preferred example, Figures 1 to 4 As shown, the air spring 4 is arranged at the top and the tail of the base 1, and its bottom is fixedly connected to the top of the base 1. This layout design meets the performance requirements. The air spring 4 is arranged at the top of the base 1 to provide a stable support force to ensure the smooth operation of the base 1 and the equipment above it. The air spring 4 is arranged at the tail to increase the stability and buffering capacity in a specific direction (such as longitudinal direction).

[0040] It should be noted that, in this embodiment, air springs 4 connected to the elastic system are also fixedly provided on the front and rear sides of the bottom of the base 1. Such a structure can further improve the stability of the vibration screen operation. When the air spring 4 is installed, the air spring 4 is fixedly connected to the base 1 through the spring seat 3, which is conducive to fixing the air spring 4.

[0041] In addition, if Figures 1 to 4 As shown, the above-mentioned driving assembly includes a motor 6 and an agitator 5, the agitator 5 is fixedly mounted on the screen body 2, and the motor 6 is connected to the agitator 5. It should be understood that the agitator is a device attached to certain machines and equipment to generate an excitation force, and is an important component for utilizing mechanical vibration. It can make the excited object obtain a certain form and size of vibration.

[0042] Among them, Figure 4As shown, the above-mentioned elastic system includes an air pressure control element 402, an air pump 405, a signal converter 406, and a control unit 407; the air pressure control element 402 is connected to the air spring 4, the air pump 405 is connected to the air pressure control element 402, the air pressure control element 402 is electrically connected to the control unit 407 through the signal converter 406, and the air pump 405 is electrically connected to the control unit 407.

[0043] When the vibrating screen is running, the air spring 4 is compressed and transmits data to the air pressure control element 402. The air pressure control element 402 transmits the air pressure data to the signal converter 406. The air pressure control element 402 has a built-in pressure sensor that can measure the pressure value of the air spring 4. In addition, the air pressure control element 402 can accurately control the connection and disconnection with each air spring 4 to control the pressure, flow rate and flow direction of the gas to different air springs 4. The signal converter 406 converts the pressure data into a signal and transmits it to the control unit 407. The control unit 407 can analyze the signal information, analyze the operating status of each air spring 4, and then judge the status of the vibrating screen to decide whether to pressurize or depressurize each air spring 4. The control unit 407 transmits the instruction to the air pump 405, and the air pump 405 performs the work of evacuating and decompressing air through the air pressure control element 402, and adding air and pressurizing air.

[0044] The control unit 407 mentioned above is preferably an ECU electronic control unit 407 .

[0045] It should be further explained that, in this embodiment, an emergency valve 401 is installed on the pipeline between the air spring 4 and the air pressure control element 402. When an accident occurs, the operator can manually close the emergency valve 401 to prevent a major accident.

[0046] In order to prevent the air pump 405 from causing an accident due to a sudden change in pressure in the pipeline when pressurizing or depressurizing, in this embodiment, a pressure gauge 403 and a gas tank 404 are installed on the pipeline between the air pressure control element 402 and the air pump 405. The gas tank 404 acts as a buffer device, which can absorb or release the excess pressure in the pipeline when the air pump 405 is pressurized or depressurized, thereby slowing down the speed of the sudden change of pressure. In this way, even if the working state of the air pump 405 suddenly changes, the pressure in the pipeline can remain relatively stable, greatly reducing the risk of accidents caused by sudden pressure changes. In the actual working process, the pressure gauge 403 can detect the pressure in the pipeline in real time.

[0047] In summary, by regulating the air spring 4 through the elastic system, the working state of the air spring 4 can be monitored in real time, providing a real-time basis for control decisions, which helps to optimize the screening effect of the vibrating screen and improve the screening efficiency and quality. In addition, the control strategy can be automatically adjusted according to changes in load and working environment to ensure that the vibrating screen can maintain the best operating state under different working conditions.

[0048] Embodiment 2

[0049] This embodiment proposes a control method, which is used for the vibrating screen system proposed in the above embodiment 1. Figure 5 As shown, the control method includes the following steps:

[0050] S1, start the vibrating screen, and the air pressure control element receives the air pressure data of each air spring;

[0051] S2, the air pressure control element converts the received air pressure data into a signal through a signal converter and transmits it to the control unit;

[0052] S3, the control unit analyzes and processes the signal to determine whether each air spring is pressurized or depressurized;

[0053] S4, the control unit sends a pressurization or decompression signal to the air pump, and controls the air pump to pressurize or decompress the air spring.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibrating screen system, characterized in that: It includes a vibrating screen and an elastic system mounted on the vibrating screen; The vibrating screen comprises a base (1), a screen body (2), a driving assembly, and an air spring (4); the screen body (2) is arranged obliquely and fixedly mounted on the base (1) via the air spring (4); a screen mesh (7) is fixedly mounted inside the screen body (2); the driving assembly is fixedly mounted on the base (1); and each of the air springs (4) is connected to the elastic system respectively; The elastic system includes an air pressure control element (402), an air pump (405), a signal converter (406), and a control unit (407); The air pressure control element (402) is connected to the air spring (4), the air pump (405) is connected to the air pressure control (402), the air pressure control element (402) is electrically connected to the control unit (407) via a signal converter (406), and the air pump (405) is electrically connected to the control unit (407).

2. A vibrating screen system according to claim 1, characterized in that: The air spring (4) is arranged at the top and the tail of the base (1), and the bottom of the air spring is fixedly connected to the top of the base (1).

3. A vibrating screen system according to claim 2, characterized in that: Air springs (4) connected to the elastic system are also fixedly provided on the front and rear sides of the bottom of the base (1).

4. A vibrating screen system according to claim 2, characterized in that: The air spring (4) is fixedly connected to the base (1) via a spring seat (3).

5. A vibrating screen system according to claim 1, characterized in that: The driving assembly comprises a motor (6) and an agitator (5), wherein the agitator (5) is fixedly mounted on the screen body (2), and the motor (6) is connected to the agitator (5).

6. A vibrating screen system according to claim 1, characterized in that: An emergency valve (401) is installed on the pipeline between the air spring (4) and the air pressure control element (402).

7. A vibrating screen system according to claim 1, characterized in that: A pressure gauge (403) and an air tank (404) are installed on the pipeline between the air pressure control element (402) and the air pump (405).

8. A control method, characterized in that: The control method is applied to a vibrating screen system according to any one of claims 1 to 8, and the control method comprises the following steps: S1, start the vibrating screen, and the air pressure control element receives the air pressure data of each air spring; S2, the air pressure control element converts the received air pressure data into a signal through a signal converter and transmits it to the control unit; S3, the control unit analyzes and processes the signal to determine whether each air spring is pressurized or depressurized; S4, the control unit sends a pressurization or decompression signal to the air pump, and controls the air pump to pressurize or decompress the air spring.

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