A large-scale motor starting control system based on feed production

Abstract

The utility model relates to automatic control technical field discloses a large -scale motor starting control system based on feed production, including power supply module, the output of power supply module electric connection has start -stop control module, delay protection module, motor drive module and state indicating module, start -stop control module and delay protection module both -way electric connection, motor drive module electric connection is in the output of start -stop control module, the input of state indicating module and motor drive module and delay protection module's output all electric connection. In the utility model, through the self -lock of starting time can keep the running state, can delay limit after stopping to avoid frequent restart, effectively solve the problem that traditional direct starting or soft starter is easy to cause equipment loss, increase maintenance cost in the frequent start -stop process, guarantee the stable operation of large -scale motor under the feed production scene, prolong the service life of equipment and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automation control technology, and in particular to a large motor starting control system based on feed production. Background Technology

[0002] In the field of industrial automation control, motor control is a key link in achieving production automation and efficiency improvement.

[0003] Traditional large motor starting control methods rely on direct starting or soft starters. These methods are prone to causing equipment damage and increasing maintenance costs during frequent start-stop processes. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a large-scale motor start-up control system based on feed production, which aims to improve the problem of high losses during motor start-up and shutdown.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-scale motor start-up control system based on feed production, comprising a power supply module, wherein the output terminal of the power supply module is electrically connected to a start-stop control module, a time delay protection module, a motor drive module, and a status indication module; the start-stop control module and the time delay protection module are bidirectionally electrically connected; the motor drive module is electrically connected to the output terminal of the start-stop control module; and the input terminal of the status indication module is electrically connected to both the output terminals of the motor drive module and the time delay protection module.

[0006] The above technical solution provides stable power to the start / stop control, delay protection, motor drive, and status indication modules through the power supply module, ensuring the basic operation of the system; the start / stop control module and the delay protection module work together to achieve precise start / stop of the motor while preventing frequent starts from damaging the equipment; the motor drive module receives instructions from the start / stop control module and drives the motor to operate stably to meet the needs of feed production.

[0007] Preferably, the status indication module includes a running indicator HL1, a stopping indicator HL2, and a delay indicator HL3.

[0008] Through the above technical solution, the status indication module obtains the operating status information of the motor drive module and the time delay protection module, and intuitively displays the current status of the equipment, making it convenient for operators to grasp the situation in a timely manner.

[0009] Preferably, the power supply module includes a main power interface, a control power interface, and a main circuit fuse FU1; the start / stop control module includes a start button SB1, a stop button SB2, an intermediate relay KA, and intermediate relay contacts KA-1 / KA-2; the time delay protection module includes a time relay KT and time relay contacts KT-1 / KT-2; and the motor drive module includes a device motor M.

[0010] The above technical solution provides power and control energy through the main power interface, control power interface, and main circuit fuse, and implements overcurrent protection to ensure system safety and stability; the start / stop button, intermediate relays and their contacts enable motor start / stop and self-locking, making operation convenient and reliable; the time relays and their contacts provide delay protection to prevent frequent start / stop and reduce equipment wear; and the equipment motor outputs power to meet feed production needs.

[0011] Preferably, the input terminal of the main circuit fuse FU1 is electrically connected to the output terminal of the main power interface, the output terminal of the main circuit fuse FU1 is electrically connected to one end of the main contact KA of the intermediate relay, the output terminal of the control power interface is electrically connected to the input terminals of the start / stop control module, the time delay protection module, and the status indication module, the input terminal of the start button SB1 is electrically connected to the live wire of the control power supply, the output terminal of the start button SB1 is electrically connected to one end of the normally open contact KT-1 of the time relay, one end of the normally open contact KT-1 of the time relay is electrically connected to one end of the normally closed contact KT-2 of the time relay, one end of the normally closed contact KT-2 of the time relay is electrically connected to one end of the coil of the intermediate relay KA, and one end of the coil of the intermediate relay KA is electrically connected to one end of the stop button SB2. One end of the stop button SB2 is electrically connected to the neutral line of the control power supply. One end of the main contact KA of the intermediate relay is electrically connected to the input terminal of the equipment motor M. The other two phase input terminals of the equipment motor M are electrically connected to the other two phase live lines of the main power supply interface. One end of the normally open contact KA-1 of the intermediate relay is electrically connected to the live line of the control power supply, and its output terminal is electrically connected to the input terminal of the running indicator HL1. One end of the normally closed contact KA-2 of the intermediate relay is electrically connected to the live line of the control power supply, and its other end is electrically connected to the input terminal of the stop indicator HL2. One end of the auxiliary normally open contact of the intermediate relay KA is electrically connected to the live line of the control power supply, and its other end is electrically connected to one end of the coil of the time relay KT. One end of the time relay KT is electrically connected to the neutral line of the control power supply.

[0012] The above technical solution achieves overcurrent protection of the main circuit through a main circuit fuse, supplies power to the control circuit through a control power interface, forms a control link through the series connection of the start / stop button, time relay, and intermediate relay contacts to achieve safe start / stop of the motor, forms a self-locking mechanism through the parallel connection of the normally open contacts of the intermediate relay and the start button to maintain continuous motor operation, controls the time relay coil through the auxiliary normally open contacts to achieve time delay protection, and reflects the motor status through the run / stop indicator light for easy and intuitive monitoring.

[0013] Preferably, the output terminals of the running indicator HL1, the stop indicator HL2, and the delayed warning light HL3 are all electrically connected to the neutral line of the control power supply. The input terminal of the delayed warning light HL3 is electrically connected to the live line of the control power supply through a flashing control circuit. The trigger terminal of the flashing control circuit is electrically connected to the output terminal of the normally closed contact KT-2 of the time relay.

[0014] The above technical solution simplifies wiring and improves signal stability by sharing a neutral wire with the indicator light. The flashing control circuit is linked with the time relay contacts to make the delay warning light flash during the delay period and turn off after the delay ends, thus intuitively indicating the motor status, improving operational safety, and preventing accidental start-up.

[0015] Preferably, when the normally closed contact KT-2 of the time relay is open, the flashing control circuit is triggered to control the flashing of the delayed warning light HL3. When the normally closed contact KT-2 of the time relay is closed, the flashing control circuit stops working and the delayed warning light HL3 goes out.

[0016] The above technical solution uses a time relay contact to control the flashing circuit, causing the delay warning light to flash during the delay period and turn off after the delay ends, thus providing a clear indication of the status and preventing accidental activation.

[0017] Preferably, the normally open contact KA-1 of the intermediate relay is connected in parallel with the start button SB1.

[0018] The above technical solution achieves continuous motor operation by forming a self-locking circuit through parallel connection, thus improving operational convenience and reliability.

[0019] Preferably, the normally closed contact KT-2 of the time relay is connected in series between the normally open contact KT-1 of the time relay and the coil of the intermediate relay KA, and the normally open contact KT-1 of the time relay is connected in series between the start button SB1 and the normally closed contact KT-2 of the time relay.

[0020] The above technical solution achieves time-delay protection through series connection, preventing frequent motor starts.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the self-locking function during startup maintains the operating state, and the delay limitation after shutdown prevents frequent restarts. This effectively solves the problem that traditional direct starters or soft starters are prone to equipment damage and increased maintenance costs during frequent start-stop processes, ensuring the stable operation of large motors in feed production scenarios, extending equipment lifespan and improving production efficiency.

[0022] 2. In this utility model, the status indication structure can intuitively reflect the running, stopping and delay status of the motor, eliminating the need for operators to additionally check the internal status of the equipment. This can effectively avoid misoperation caused by unclear equipment status and improve the safety and convenience of system operation. Attached Figure Description

[0023] Figure 1 This utility model presents a schematic block diagram of the structure of a large motor starting control system based on feed production. Figure 2 A schematic block diagram of the power supply module for a large motor starting control system based on feed production proposed in this utility model. Figure 3 This utility model presents a schematic block diagram of a start-stop control module for a large motor starting control system based on feed production. Figure 4 This utility model presents a schematic block diagram of a delay protection module for a large motor starting control system based on feed production. Figure 5 A schematic block diagram of a motor drive module for a large-scale motor starting control system based on feed production proposed in this utility model; Figure 6 This utility model presents a schematic block diagram of a status indication module for a large motor start-up control system based on feed production. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-3The present invention provides an embodiment of a large motor starting control system based on feed production, comprising a power supply module, wherein the output terminal of the power supply module is electrically connected to a start / stop control module, a time delay protection module, a motor drive module and a status indication module, the start / stop control module and the time delay protection module are bidirectionally electrically connected, the motor drive module is electrically connected to the output terminal of the start / stop control module, and the input terminal of the status indication module is electrically connected to the output terminals of the motor drive module and the time delay protection module. Specifically, the power supply module, as the foundation for power output, is electrically connected to the start / stop control module, time delay protection module, motor drive module, and status indicator module, providing the necessary power for these four modules to operate. The start / stop control module and time delay protection module are bidirectionally connected, enabling the mutual transmission and interaction of control signals to coordinate the logical operation of motor start / stop and time delay protection. The motor drive module is unidirectionally connected to the output of the start / stop control module, receiving start / stop signals to control motor operation or shutdown. The status indicator module is also unidirectionally connected to the outputs of both the motor drive module and the time delay protection module, receiving operating status signals from these two modules to display the current system operating condition.

[0026] Reference Figure 6 The status indicator module includes a running indicator HL1, a stopping indicator HL2, and a delay indicator HL3; Specifically, the running indicator HL1, the stop indicator HL2, and the delay indicator HL3 correspond to the status feedback of different operating stages of the motor. HL1 will light up simultaneously when the motor starts running, allowing operators in the feed production workshop to quickly know that the equipment is in working status without having to approach the large motor, avoiding ineffective operations due to misjudgment of shutdown. HL2 lights up when the motor stops but has not entered the delay stage, clearly indicating that the motor can be started at any time, reducing the time spent waiting to confirm the status and adapting to the needs of equipment switching in production. HL3 will light up during the delay stage after the motor stops, intuitively indicating that it cannot be restarted at present, preventing frequent start and stop of the motor due to accidental touch of the start button, reducing equipment wear and tear, and extending service life. The three indicator lights can convey key status information through simple on and off, reducing the difficulty of operation and improving the operational safety and efficiency in feed production.

[0027] Reference Figures 2-4 The power supply module includes a main power interface, a control power interface, and a main circuit fuse FU1; the start / stop control module includes a start button SB1, a stop button SB2, an intermediate relay KA, and intermediate relay contacts KA-1 / KA-2; the time delay protection module includes a time relay KT and time relay contacts KT-1 / KT-2; and the motor drive module includes the equipment motor M. Specifically, the power supply module includes a main power interface, a control power interface, and a main circuit fuse FU1, achieving independent power supply and isolation between the power and control circuits, reducing mutual interference, and providing overcurrent protection through the fuse, effectively improving system safety; the start / stop control module includes a start button SB1, a stop button SB2, an intermediate relay KA, and matching contacts KA-1 / KA-2, enabling reliable motor start / stop and self-locking, ensuring the motor continues to run after the start signal is removed, meeting the needs of long-term stable operation in feed production; the time delay protection module is equipped with a time relay KT and contact KT-1. / KT-2 automatically enters a set delay phase after the motor stops, during which restart operations are restricted to avoid motor damage caused by frequent start-stop cycles, extend service life, and reduce maintenance costs. The motor drive module's motor M, as the actuator, can stably output power to drive the feed production equipment, adapting to high-power operating conditions. The status indicator module's running indicator HL1, stopping indicator HL2, and delay indicator HL3 provide real-time feedback to the operator through intuitive on / off or flashing status, reducing the probability of misoperation, improving operational convenience and safety, and ensuring stable and efficient production.

[0028] Reference Figures 3-5 The input terminal of the main circuit fuse FU1 is electrically connected to the output terminal of the main power interface. The output terminal of the main circuit fuse FU1 is electrically connected to one end of the main contact KA of the intermediate relay. The output terminal of the control power interface is electrically connected to the input terminals of the start / stop control module, the time delay protection module, and the status indication module. The input terminal of the start button SB1 is electrically connected to the live wire of the control power supply. The output terminal of the start button SB1 is electrically connected to one end of the normally open contact KT-1 of the time relay. One end of the normally open contact KT-1 of the time relay is electrically connected to one end of the normally closed contact KT-2 of the time relay. One end of the normally closed contact KT-2 of the time relay is electrically connected to one end of the coil of the intermediate relay KA. One end of the coil of the intermediate relay KA is electrically connected to one end of the stop button SB2. One end of button SB2 is electrically connected to the neutral line of the control power supply. One end of the main contact KA of the intermediate relay is electrically connected to the input terminal of the equipment motor M. The other two phase input terminals of the equipment motor M are electrically connected to the other two phase live lines of the main power supply interface. One end of the normally open contact KA-1 of the intermediate relay is electrically connected to the live line of the control power supply, and its output terminal is electrically connected to the input terminal of the running indicator HL1. One end of the normally closed contact KA-2 of the intermediate relay is electrically connected to the live line of the control power supply, and its other end is electrically connected to the input terminal of the stop indicator HL2. One end of the auxiliary normally open contact of the intermediate relay KA is electrically connected to the live line of the control power supply, and its other end is electrically connected to one end of the coil of the time relay KT. One end of the time relay KT is electrically connected to the neutral line of the control power supply. Specifically, the input terminal of the main circuit fuse FU1 is connected to the output terminal of the main power interface, and the output terminal is connected to the input terminal of the main contact KA of the intermediate relay, providing main circuit overcurrent protection for the equipment motor M to prevent equipment damage caused by short circuits or overloads; the output terminal of the control power interface is connected to the start / stop control module, the delay protection module, and the status indication module respectively, to achieve electrical isolation between the control circuit and the main circuit, reduce mutual interference, and improve system stability; the start button SB1, the normally open contact KT-1 of the time relay, the normally closed contact KT-2 of the time relay, the coil of the intermediate relay KA, and the stop button SB2 are connected in series to form a reliable start / stop control link to avoid false triggering and circuit failure; the output terminal of the main contact KA of the intermediate relay is connected to the input terminal of the equipment motor M. The input terminals of the other two motor phases are directly connected to the main power interface to ensure three-phase power supply balance and improve motor operating efficiency. The normally open contact KA-1 of the intermediate relay is connected in series with the running indicator HL1, and the normally closed contact KA-2 is connected in series with the stop indicator HL2, so that the indicator status is synchronized with the motor operating condition, making it easy for operators to intuitively judge the equipment status. The auxiliary normally open contact of the intermediate relay KA is connected in series with the coil of the time relay KT to realize automatic delay protection after the motor stops, avoiding motor overheating and mechanical wear caused by frequent start and stop, and extending the service life of the equipment. The output terminal of the time relay KT is connected to the neutral line of the control power supply to ensure reliable reset of the delay circuit. This realizes safe start and stop of the motor, self-locking, delay protection and status visualization, improving production safety and continuity.

[0029] Reference Figure 5 and Figure 6 The output terminals of the running indicator HL1, the stop indicator HL2, and the delayed warning light HL3 are all electrically connected to the neutral line of the control power supply. The input terminal of the delayed warning light HL3 is electrically connected to the live line of the control power supply through the flashing control circuit. The trigger terminal of the flashing control circuit is electrically connected to the output terminal of the normally closed contact KT-2 of the time relay. Specifically, the outputs of the running indicator HL1, the stop indicator HL2, and the delayed warning light HL3 are all connected to the neutral line of the control power supply, achieving a common ground design for the control loop, reducing wiring complexity, and improving the consistency of the signal reference. The input of the delayed warning light HL3 is connected to the live wire of the control power supply through a flashing control circuit. The trigger end of the flashing control circuit is connected to the output of the normally closed contact KT-2 of the time relay. When the motor stops, the time relay enters the delay phase, KT-2 opens, and the flashing control circuit starts. HL3 flashes to provide a warning, reducing the risk of frequent start-stop of the equipment due to accidental activation of the start button. During the non-delay phase, KT-2 closes, the flashing control circuit stops working, and HL3 turns off, making the indicator status display accurate and intuitive, and improving the safety and reliability of system operation.

[0030] Reference Figure 5 and Figure 6When the normally closed contact KT-2 of the time relay is open, the flashing control circuit is triggered to control the flashing of the delayed warning light HL3. When the normally closed contact KT-2 of the time relay is closed, the flashing control circuit stops working and the delayed warning light HL3 goes out. Specifically, when the normally closed contact KT-2 of the time relay opens, the flashing control circuit is triggered, causing the delayed warning light HL3 to flash. The dynamic visual signal can quickly attract the operator's attention in the complex and noisy environment of the feed production workshop, effectively reducing the risk of accidentally pressing the start button. When the normally closed contact KT-2 of the time relay closes, the flashing control circuit stops working, and the delayed warning light HL3 goes out, avoiding ineffective visual interference and synchronizing the indicator light status with the actual operating condition of the equipment. This ensures that the information obtained by the operator is accurate and reliable, further improving the safety and convenience of system operation.

[0031] Reference Figure 3 The normally open contact KA-1 of the intermediate relay is connected in parallel with the start button SB1; Specifically, by connecting one end of KA-1 to the input terminal of SB1 and the other end to the output terminal of SB1, a stable and reliable self-locking circuit is formed, which enables the motor to automatically maintain its running state after the start signal is triggered, without the need to continuously press the start button. This reduces the intensity of operation and the wear of the button contacts, thereby improving the long-term reliability of the system and enhancing the safety and production efficiency of the control system.

[0032] Reference Figure 4 The normally closed contact KT-2 of the time relay is connected in series between the normally open contact KT-1 of the time relay and the coil of the intermediate relay KA, and the normally open contact KT-1 of the time relay is connected in series between the start button SB1 and the normally closed contact KT-2 of the time relay. Specifically, the sequential connection forms a control logic chain, ensuring that the control signal must pass through multiple key nodes in sequence to drive the intermediate relay to operate. This effectively prevents accidental start-up caused by single contact sticking or malfunction, and improves the system's safety and anti-interference capabilities.

[0033] Working principle: In the power supply module, the main power interface provides stable three-phase power to the equipment motor M through the main circuit fuse FU1, and the control power interface provides power to the start / stop control and time delay protection modules, realizing independent power supply for the power and control circuits and ensuring system safety. The start / stop control module triggers the intermediate relay KA coil to be energized by the start button SB1. The KA main contact closes to drive the motor M to start. At the same time, the normally open contact KA-1 of KA closes to achieve self-locking, ensuring continuous operation of the motor. Pressing the stop button SB2 cuts off the power supply to the KA coil, and the motor M stops, completing the start-lock-stop control. In the time delay protection module, the time relay KT coil is energized when the motor M is energized. After the motor stops, KT enters a 5-minute power-off delay. During this period, the normally closed contact KT-2 of KT remains open. Even if SB1 is pressed, the KA coil cannot be energized, effectively avoiding equipment wear caused by frequent start and stop, solving the problem of high maintenance costs of traditional direct start or soft starter, and ultimately realizing stable start / stop and time delay protection for large motors in feed production scenarios, improving equipment life and production efficiency. The operation indicator HL1 is controlled by the normally open contact KA-1 of KA. When KA is energized (motor running), HL1 lights up, providing a clear indication that the equipment is working. The stop indicator HL2 is controlled by the normally closed contact KA-2 of KA. When KA is de-energized (motor stopped and not in the delay phase), HL2 lights up, indicating that the equipment can be restarted. The delay warning light HL3 is connected to the normally closed contact KT-2 of KT through a flashing control circuit. When KT-2 is open (delay phase), HL3 flashes, indicating that the equipment is in a delay lock-up state and should not be started accidentally. When KT-2 is closed (delay ends), HL3 turns off. This system provides clear status guidance to production workshop operators solely through light signals, avoiding misoperation due to unclear equipment status. It is suitable for actual scenarios with high dust levels and dense equipment in the workshop, improving the safety and convenience of system operation.

[0034] Finally, it should be noted that 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 large-scale motor starting control system based on feed production, comprising a power supply module, characterized in that: The output terminal of the power supply module is electrically connected to a start / stop control module, a delay protection module, a motor drive module, and a status indication module. The start / stop control module and the delay protection module are bidirectionally electrically connected. The motor drive module is electrically connected to the output terminal of the start / stop control module. The input terminal of the status indication module is electrically connected to both the output terminals of the motor drive module and the delay protection module.

2. The large-scale motor starting control system based on feed production according to claim 1, characterized in that: The status indicator module includes a running indicator HL1, a stopping indicator HL2, and a delay indicator HL3.

3. The large-scale motor starting control system based on feed production according to claim 1, characterized in that: The power supply module includes a main power interface, a control power interface, and a main circuit fuse FU1. The start / stop control module includes a start button SB1, a stop button SB2, an intermediate relay KA, and intermediate relay contacts KA-1 / KA-2. The time delay protection module includes a time relay KT and time relay contacts KT-1 / KT-2. The motor drive module includes a device motor M.

4. The large-scale motor starting control system based on feed production according to claim 3, characterized in that: The input terminal of the main circuit fuse FU1 is electrically connected to the output terminal of the main power interface. The output terminal of the main circuit fuse FU1 is electrically connected to one end of the main contact KA of the intermediate relay. The output terminal of the control power interface is electrically connected to the input terminals of the start / stop control module, the time delay protection module, and the status indication module. The input terminal of the start button SB1 is electrically connected to the live wire of the control power supply. The output terminal of the start button SB1 is electrically connected to one end of the normally open contact KT-1 of the time relay. One end of the normally open contact KT-1 of the time relay is electrically connected to one end of the normally closed contact KT-2 of the time relay. One end of the normally closed contact KT-2 of the time relay is electrically connected to one end of the coil of the intermediate relay KA. One end of the coil of the intermediate relay KA is electrically connected to one end of the stop button SB2. One end of the stop button SB2 is electrically connected to the neutral line of the control power supply. One end of the main contact KA of the intermediate relay is electrically connected to the input terminal of the equipment motor M. The other two phase input terminals of the equipment motor M are electrically connected to the other two phase live lines of the main power supply interface. One end of the normally open contact KA-1 of the intermediate relay is electrically connected to the live line of the control power supply, and its output terminal is electrically connected to the input terminal of the running indicator HL1. One end of the normally closed contact KA-2 of the intermediate relay is electrically connected to the live line of the control power supply, and its other end is electrically connected to the input terminal of the stop indicator HL2. One end of the auxiliary normally open contact of the intermediate relay KA is electrically connected to the live line of the control power supply, and its other end is electrically connected to one end of the coil of the time relay KT. One end of the time relay KT is electrically connected to the neutral line of the control power supply.

5. A large-scale motor starting control system based on feed production according to claim 2, characterized in that: The output terminals of the running indicator HL1, the stop indicator HL2, and the delayed warning light HL3 are all electrically connected to the neutral line of the control power supply. The input terminal of the delayed warning light HL3 is electrically connected to the live line of the control power supply through a flashing control circuit. The trigger terminal of the flashing control circuit is electrically connected to the output terminal of the normally closed contact KT-2 of the time relay.

6. The large-scale motor starting control system based on feed production according to claim 5, characterized in that: When the normally closed contact KT-2 of the time relay is open, the flashing control circuit is triggered to control the flashing of the delayed warning light HL3. When the normally closed contact KT-2 of the time relay is closed, the flashing control circuit stops working and the delayed warning light HL3 goes out.

7. A large-scale motor starting control system based on feed production according to claim 3, characterized in that: The normally open contact KA-1 of the intermediate relay is connected in parallel with the start button SB1.

8. A large-scale motor starting control system based on feed production according to claim 3, characterized in that: The normally closed contact KT-2 of the time relay is connected in series between the normally open contact KT-1 of the time relay and the coil of the intermediate relay KA, and the normally open contact KT-1 of the time relay is connected in series between the start button SB1 and the normally closed contact KT-2 of the time relay.

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