Device for eliminating voltage impact generated by braking on papermaking shaking vibration electric control equipment

Abstract

The utility model relates to the technical field of electric control equipment, in particular to a device for eliminating voltage impact generated by braking on papermaking shaking vibration electric control equipment, which comprises a braking unit and a resistor assembly, the resistor assembly is arranged on one side of the braking unit, a connecting circuit is fixedly connected to one side of the resistor assembly, and a frequency converter is fixedly connected to one side of the connecting circuit. One side of the frequency converter is fixedly connected with a motor, the upper end of the resistor assembly is fixedly connected with a supporting baffle plate, the inner side of the resistor assembly is provided with a cleaning assembly, the resistor assembly comprises a resistor device shell, and the upper part of the resistor device shell is fixedly connected with an electric fan. According to the resistor device, the operation efficiency of equipment is improved, the improvement effect is good, meanwhile, resistor elements in the resistor device shell can be continuously cooled, impurities on the filter plate are automatically cleaned during cooling, and normal operation of a resistor assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric control equipment, in particular to a device for eliminating voltage impact caused by braking on papermaking shaking electric control equipment. Background Art

[0002] The shaking device is installed on the paper machine mesh. It relies on two motors to drive two eccentric wheels to rotate relative to each other to stir the pulp evenly, so as to achieve uniform sizing. The shaking device electronic control system contains a PLC controller, a rectifier unit and a drive module. The shaking drive is a large inertia running device, and the equipment can operate normally under normal power supply conditions.

[0003] However, when the power plant suddenly stops and the power supply is suddenly terminated, the large inertia equipment with load suddenly loses power, and the shaking device is in a DC braking state due to the power failure. During the braking process, an extremely high back electromotive force will be generated, and the back electromotive force will generate a high voltage. The high voltage can easily impact the motor drive module, thereby burning the motor drive module, causing equipment failure and affecting the normal operation of the equipment. Therefore, in view of the above problem, a device is proposed to eliminate the voltage impact caused by braking on the papermaking shaking electronic control equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a device for eliminating voltage impact caused by braking on papermaking shaking electric control equipment, so as to solve the problem that due to the sudden power failure of large inertia equipment with load, the shaking device is in a DC braking state due to power failure, and an extremely high back electromotive force is generated during the braking process. The back electromotive force generates a high voltage, and the high voltage is easy to impact the motor drive module, thereby burning the motor drive module, causing equipment failure and affecting the normal operation of the equipment.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for eliminating voltage impact caused by braking on papermaking vibration electric control equipment, comprising a braking unit and a resistor assembly, wherein a resistor assembly is arranged on one side of the braking unit, a connecting circuit is fixedly connected to one side of the resistor assembly, a frequency converter is fixedly connected to one side of the connecting circuit, a motor is fixedly connected to one side of the frequency converter, a support baffle is fixedly connected to the upper end of the resistor assembly, a cleaning assembly is arranged on the inner side of the resistor assembly, the resistor assembly comprises a resistor device housing, an electric fan is fixedly connected to the upper part of the resistor device housing, a folding plate is fixedly connected to one side of the resistor device housing, a filter plate is fixedly connected to the inner side of the folding plate by bolts, a columnar hole is opened on the inner side of the filter plate, the cleaning assembly comprises a hollow cylinder, a limited support plate is fixedly connected to the inner side of the hollow cylinder, a roller is rotatably connected to the inner side of the limited support plate, an eddy current fan blade is fixedly connected to the outer side of the roller, a fixed brush plate is fixedly connected to the outer side of the roller, and a brush is fixedly connected to one side of the fixed brush plate.

[0007] As a further optimization of the present invention, the braking unit is fitted with the resistor assembly, the number of the connecting circuits is two, and the connecting circuits are fixed inside the braking unit and the resistor assembly.

[0008] The brake unit, the resistor component, the connecting circuit, the frequency converter and the motor are electrically connected. The front ends of the brake unit and the resistor component are fixedly connected with sealing rings. The front ends of the brake unit and the resistor component are provided with door panels.

[0009] A groove is provided on the inner side of the upper part of the resistor device shell, the outer side of the electric fan is fixed inside the groove on the upper part of the resistor device shell, the inner side of the electric fan is connected with the inner side of the resistor device shell, a fixing rod is provided at the lower end of the support plate, and a space is provided between the support plate and the upper part of the resistor assembly.

[0010] One side of the folding plate is in a concave shape, a through hole is provided on the inner side of the folding plate, a support plate is fixed on the inner side of the through hole of the folding plate, the filter plate is fitted with the inner side of the folding plate, there are two filter plates, a threaded hole is provided on the inner side of the filter plate, a threaded hole is provided inside the folding plate, the cylindrical hole is in the shape of a semi-cylinder, and one side of the cylindrical hole is fitted with the outer side of the roller.

[0011] The hollow cylinder is in the shape of a hollow cylinder, and is fixed inside the resistor assembly. A through hole is provided at the lower portion of the resistor device housing, and the inside of the hollow cylinder is connected to the through hole of the resistor device housing.

[0012] A rotating hole is opened on the inner side of the limit support plate, the rotating roller is in the shape of a cylinder, the vortex fan blades are installed inside the hollow cylinder, the outer side of the rotating roller is rotatably connected to the inner side of the folding plate, the left side of the brush is fitted with the right side of the filter plate, and there are several brushes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, a device for eliminating voltage shock caused by braking on the papermaking remote vibration electric control equipment is installed by arranging a braking unit, a resistance component, a connecting circuit, a frequency converter, a motor, a baffle plate and a cleaning component. After each power outage in the power plant, the vibration device has never had the abnormal situation of burning out the motor module, thereby ensuring the integrity of the equipment, ensuring the normal operation of production, improving the operating efficiency of the equipment, and having a good improvement effect. At the same time, the resistance element inside the outer casing of the resistance device can be continuously cooled, and the debris on the filter plate can be automatically cleaned during the cooling process to ensure the normal operation of the resistance component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the support baffle structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the resistor assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the cleaning component of the utility model.

[0019] In the figure: 1. brake unit; 2. resistor assembly; 21. resistor device housing; 22. electric fan; 23. folding plate; 24. filter plate; 25. cylindrical hole; 3. connecting circuit; 4. inverter; 5. motor; 6. baffle plate; 7. cleaning assembly; 71. hollow cylinder; 72. limit support plate; 73. roller; 74. eddy current fan blade; 75. fixed brush plate; 76. brush. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A device for eliminating voltage shock caused by braking on a papermaking vibration electric control device comprises a braking unit 1 and a resistor component 2. The braking unit 1 is provided with a resistor component 2 on one side. A connection circuit 3 is fixedly connected to one side of the resistor component 2. A frequency converter 4 is fixedly connected to one side of the connection circuit 3. A motor 5 is fixedly connected to one side of the frequency converter 4. A support baffle 6 is fixedly connected to the upper end of the resistor component 2. A cleaning component 7 is provided inside the resistor component 2. The resistor component 2 comprises a resistor device housing 21. The upper portion of the resistor device housing 21 is fixedly connected to There is an electric fan 22, a folding plate 23 is fixedly connected to one side of the resistor device housing 21, a filter plate 24 is fixedly connected to the inner side of the folding plate 23 by bolts, a cylindrical sticking hole 25 is opened on the inner side of the filter plate 24, and the cleaning component 7 includes a hollow cylinder 71, a limited support plate 72 is fixedly connected to the inner side of the hollow cylinder 71, a roller 73 is rotatably connected to the inner side of the limited support plate 72, an eddy current fan blade 74 is fixedly connected to the outer side of the roller 73, a fixed brush plate 75 is fixedly connected to the outer side of the roller 73, and a brush 76 is fixedly connected to one side of the fixed brush plate 75.

[0024] As a further implementation of this solution, the brake unit 1 and the resistor assembly 2 are fitted together, the number of the connecting circuits 3 is two, and the connecting circuits 3 are fixed inside the brake unit 1 and the resistor assembly 2, so that the brake unit 1 and the resistor assembly 2 can transmit electricity through the connecting circuits 3, thereby reducing the voltage applied to the electric control device;

[0025] As a further implementation of the present invention, the brake unit 1, the resistor assembly 2, the connection circuit 3, the frequency converter 4 and the motor 5 are electrically connected, the front ends of the brake unit 1 and the resistor assembly 2 are fixedly connected with sealing rings, and the front ends of the brake unit 1 and the resistor assembly 2 are provided with door panels to seal the inside of the brake unit 1 and the resistor assembly 2 to prevent external impurities from entering the brake unit 1 or the resistor assembly 2;

[0026] As a further implementation of the present scheme, a groove is provided on the inner side of the upper part of the resistor device housing 21, the outer side of the electric fan 22 is fixed inside the groove on the upper part of the resistor device housing 21, the inner side of the electric fan 22 is connected with the inner side of the resistor device housing 21, a fixing rod is provided at the lower end of the baffle plate 6, and a space is provided between the baffle plate 6 and the upper part of the resistor assembly 2, which plays the effect of protecting the electric fan 22 and facilitates the gas inside the resistor device housing 21 to flow out from the electric fan 22;

[0027] As a further implementation of the present scheme, one side of the folding plate 23 is in a "concave" shape, a through hole is provided on the inner side of the folding plate 23, a support plate is fixed on the inner side of the through hole of the folding plate 23, the filter plate 24 is fitted with the inner side of the folding plate 23, there are two filter plates 24, a threaded hole is provided on the inner side of the filter plate 24, a threaded hole is provided inside the folding plate 23, the cylindrical pasting hole 25 is in the shape of a semi-cylinder, one side of the cylindrical pasting hole 25 is fitted with the outer side of the rotating roller 73, the filter plate 24 can be fixed, and the fit between the brush 76 and the filter plate 24 is not affected;

[0028] As a further implementation of the present scheme, the hollow cylinder 71 is in the shape of a hollow cylinder, the hollow cylinder 71 is fixed to the inner side of the resistor assembly 2, a through hole is provided at the lower part of the resistor housing 21, the inner side of the hollow cylinder 71 is connected to the through hole of the resistor housing 21, so that the external air can pass from the filter plate 24 through the hollow cylinder 71 into the inside of the resistor housing 21, and the resistor element inside the resistor housing 21 is continuously cooled;

[0029] As a further implementation scheme of the present scheme, a rotating hole is opened on the inner side of the limit support plate 72, the rotating roller 73 is in the shape of a cylinder, the vortex fan blades 74 are installed inside the hollow cylinder 71, the outer side of the rotating roller 73 is rotatably connected to the inner side of the folding plate 23, the left side of the brush 76 is fitted with the right side of the filter plate 24, and there are several brushes 76, which play the role of filtering impurities in the external air, thereby ensuring the cooling efficiency inside the resistor device housing 21.

[0030] Working process: When the device is in use, the external power supply is energized to eliminate the high voltage impact caused by braking on the papermaking vibration electronic control equipment, which affects the module of motor 5. During the rapid stop process, motor 5 will be in a braking state. The kinetic energy of the dragging system will be fed back to the DC circuit, causing the DC voltage to continue to rise, and may even reach a dangerous level. Therefore, the energy regenerated into the DC circuit must be consumed. The device for eliminating the voltage impact caused by braking on the vibration electronic control equipment is based on the principle that the inverter 4 outputs the braking unit 1 through the connecting circuit 3 and is connected to the resistor component 2 to increase the rapidly rising DC The voltage is divided by the connected resistor component 2, thereby consuming a part of the electric energy and reducing the voltage applied to the electric control equipment, thus ensuring the normal working voltage of the equipment and achieving the purpose of protecting the equipment. The structure of the device for eliminating the voltage shock caused by braking on the papermaking vibration electric control equipment includes two parts, one is the braking unit 1, and the other is the resistor component 2. The braking unit 1 contains a power supply, a DC voltage detection circuit and a switching circuit. The resistor component 2 is an electronic component used to consume the regenerative energy generated by the motor 5 during the braking process in the form of heat energy, avoiding excessive voltage in the DC circuit, ensuring the integrity of the equipment, and ensuring the production The normal operation of the production improves the operation efficiency of the equipment. The heat generated by the resistance element inside the resistance device housing 21 after working exists inside the resistance device housing 21. When the inside of the resistance device housing 21 is cooled, the electric fan 22 is started, and the baffle 6 plays a role in protecting the electric fan 22. The gas passes through the filter plate 24 from the outside. The filter plate 24 plays a role in filtering impurities in the external air. The gas enters the resistance device housing 21, blows toward the vortex fan blades 74 from the internal holes of the resistance device housing 21, enters the inside of the resistance device housing 21 from the inside of the hollow cylinder 71, and flows out from the inside of the electric fan 22. When the gas blows toward the vortex fan blades 74, the gas flows out from the inside of the electric fan 22. When the fan blades 74 are turned, the eddy current fan blades 74 rotate, and the eddy current fan blades 74 drive the roller 73 to rotate. The roller 73 is connected to the limit support plate 72 and the inner side of the folding plate 23 to improve the stability of the roller 73 during rotation. The roller 73 drives the fixed brush plate 75 to rotate, and the fixed brush plate 75 drives the brush 76 to rotate. The brush 76 cleans the impurities on the right side of the filter plate 24 to improve the cooling efficiency of the resistor device housing 21. The filter plate 24 is fixed to the inside of the folding plate 23 by bolts. When replacing the filter plate 24, the filter plate 24 is inserted into the inside of the folding plate 23 from the side of the folding plate 23 so that the cylindrical sticking hole 25 fits with the outer side of the roller 73, and then the filter plate 24 is fixed.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for eliminating voltage shock caused by braking on a papermaking vibration electric control device, comprising a braking unit (1) and a resistor component (2), characterized in that: A resistor component (2) is provided on one side of the brake unit (1), a connection circuit (3) is fixedly connected to one side of the resistor component (2), a frequency converter (4) is fixedly connected to one side of the connection circuit (3), a motor (5) is fixedly connected to one side of the frequency converter (4), a support baffle (6) is fixedly connected to the upper end of the resistor component (2), a cleaning component (7) is provided inside the resistor component (2), the resistor component (2) comprises a resistor device housing (21), an electric fan (22) is fixedly connected to the upper part of the resistor device housing (21), and one side of the resistor device housing (21) is fixedly A folding plate (23) is connected, the inner side of the folding plate (23) is fixedly connected to a filter plate (24) by bolts, the inner side of the filter plate (24) is provided with a columnar sticking hole (25), the cleaning component (7) comprises a hollow cylinder (71), the inner side of the hollow cylinder (71) is fixedly connected to a limited support plate (72), the inner side of the limited support plate (72) is rotatably connected to a roller (73), the outer side of the roller (73) is fixedly connected to a vortex blade (74), the outer side of the roller (73) is fixedly connected to a fixed brush plate (75), and one side of the fixed brush plate (75) is fixedly connected to a brush (76).

2. According to claim 1, a device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment, characterized in that: The brake unit (1) and the resistor assembly (2) are fitted together, the number of the connecting circuits (3) is two, and the connecting circuits (3) are fixed inside the brake unit (1) and the resistor assembly (2).

3. The device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment according to claim 1 is characterized in that: The brake unit (1), the resistor component (2), the connecting circuit (3), the frequency converter (4) and the motor (5) are electrically connected; the front ends of the brake unit (1) and the resistor component (2) are fixedly connected with sealing rings; and the front ends of the brake unit (1) and the resistor component (2) are provided with door panels.

4. The device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment according to claim 1 is characterized in that: A groove is provided on the inner side of the upper part of the resistor device housing (21); the outer side of the electric fan (22) is fixed inside the groove on the upper part of the resistor device housing (21); the inner side of the electric fan (22) is connected to the inner side of the resistor device housing (21); a fixing rod is provided at the lower end of the support baffle (6); and a space is provided between the support baffle (6) and the upper part of the resistor assembly (2).

5. The device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment according to claim 1 is characterized in that: One side of the folding plate (23) is in the shape of a "concave" character. A through hole is provided on the inner side of the folding plate (23). A support plate is fixed on the inner side of the through hole of the folding plate (23). The filter plate (24) is fitted with the inner side of the folding plate (23). There are two filter plates (24). A threaded hole is provided on the inner side of the filter plate (24). A threaded hole is provided inside the folding plate (23). The cylindrical fitting hole (25) is in the shape of a semi-cylinder. One side of the cylindrical fitting hole (25) is fitted with the outer side of the rotating roller (73).

6. The device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment according to claim 1 is characterized in that: The hollow cylinder (71) is in the shape of a hollow cylinder. The hollow cylinder (71) is fixed to the inner side of the resistor assembly (2). A through hole is provided at the lower part of the resistor device housing (21). The inner side of the hollow cylinder (71) is connected to the through hole of the resistor device housing (21).

7. The device for eliminating voltage shock caused by braking on papermaking vibration electric control equipment according to claim 1 is characterized in that: A rotation hole is provided on the inner side of the position-limiting support plate (72); the rotating roller (73) is in the shape of a cylinder; the vortex blade (74) is installed inside the hollow cylinder (71); the outer side of the rotating roller (73) is rotatably connected to the inner side of the folding plate (23); the left side of the brush (76) is in contact with the right side of the filter plate (24); and the number of the brushes (76) is several.

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