Ring main unit isolation switch opening and closing running-in device

Abstract

The utility model relates to a ring main unit disconnecting switch opening and closing running-in device which comprises a rack, one side of the rack is provided with an opening, the opening end is provided with a connecting part connected with a disconnecting switch, the rack is provided with a driving module and a control module, the driving module comprises a motor, and an output shaft of the motor faces the opening end and is provided with a universal coupling. The universal coupling is used for being connected to a handle shaft of the isolating switch; the control module comprises a controller and a counter, the controller is in signal connection with the counter and the motor, and the controller is used for controlling starting, stopping and steering of the motor and controlling the number of times of opening and closing; according to the utility model, the opening and closing running-in efficiency of the isolating switch is obviously improved, and the time and cost of manual operation are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of disconnecting switches and circuit breakers, specifically a ring main unit disconnecting switch break-in device. Background Technology

[0002] Ring main unit disconnect switches require multiple opening and closing operations before leaving the factory or after maintenance to verify their mechanical performance and electrical stability. Currently, this is mainly done manually using the handle, which presents the following technical problems: 1. Manual operation is time-consuming, inefficient, and labor-intensive; 2. It has poor safety, as frequent operation may cause accidental contact or mechanical injury; 3. Manual counting of opening and closing times is prone to errors; and the unstable force and speed of manual operation affect the break-in effect. Therefore, there is an urgent need for an automated and intelligent opening and closing break-in device. Summary of the Invention

[0003] The main purpose of this utility model is to solve the problems existing in the prior art and provide a ring main unit disconnect switch break-in device.

[0004] The specific solution of this utility model is as follows: a ring main unit disconnect switch break-in device, including a frame, an opening on one side of the frame, and a connection part for connecting to the disconnect switch at the end of the opening. A drive module and a control module are mounted on the frame. The drive module includes a motor, the output shaft of which faces the opening and is equipped with a universal coupling for connecting to the handle shaft of the disconnect switch. The control module includes a controller and a counter. The controller is connected to the counter and the motor signal respectively. The controller is used to control the start and stop of the motor, the direction of rotation, and the number of opening and closing cycles.

[0005] Furthermore, a human-machine interaction module is provided on the outward-facing side of the frame. The human-machine interaction module includes a display screen and buttons. The human-machine interaction module is used to set the number of break-in cycles, start / stop control, and status display.

[0006] Furthermore, the universal coupling includes a cross universal joint A, a connecting shaft A, a cross universal joint B, and a connecting shaft B connected in sequence. The cross universal joint A is connected to the output shaft of the motor, and the outer end of the connecting shaft B is connected to the handle shaft of the disconnecting switch.

[0007] Furthermore, the connecting part includes several legs, and the ends of the legs are equipped with electromagnets. The frame is attached to the surface of the disconnecting switch by means of the electromagnets.

[0008] Furthermore, the frame is equipped with a safety protection module, which includes a current sensor, an alarm indicator light, and an emergency stop button. The current sensor is used to detect whether the motor current is overloaded, and if overloaded, an alarm indication is triggered.

[0009] Compared with the prior art, this utility model has the following advantages: it significantly improves the opening and closing efficiency of the disconnecting switch, reduces the time and cost of manual operation, and facilitates monitoring and maintenance: by recording the number of opening and closing operations through sensors, the operating status of the equipment can be monitored in real time, providing data support for the maintenance and upkeep of the equipment. Attached Figure Description

[0010] Figure 1 This is a front perspective view of the structure of this utility model;

[0011] Figure 2 This is a rear perspective view of the present invention;

[0012] Figure 3 This is a front view of the present invention;

[0013] Figure 4 This is a front view of the back of this utility model;

[0014] Figure 5 This is a three-dimensional schematic diagram of the universal coupling of this utility model;

[0015] In the diagram: 1. Frame; 2. Human-machine interface module; 3. Alarm indicator light; 4. Emergency stop button; 5. Drive module; 6. Electromagnet; 7. Universal coupling; 71. Universal joint A; 72. Connecting shaft A; 73. Universal joint B; 74. Connecting shaft B; 8. Control module; 9. Counter. Detailed Implementation

[0016] See Figure 1-5 This embodiment is a ring main unit disconnector switch break-in device, including a frame 1. The frame 1 has an opening on one side, and the opening end has a connection part for connecting to the disconnector switch. The frame 1 is equipped with a drive module 5 and a control module 8. The drive module 5 includes a motor, the output shaft of which faces the opening end and is equipped with a universal coupling 7. The universal coupling 7 is used to connect to the handle shaft of the disconnector switch. The control module 8 includes a controller and a counter 9. The controller is connected to the counter 9 and the motor signal respectively. The controller is used to control the start and stop of the motor, the direction of rotation, and the number of opening and closing operations.

[0017] Furthermore, a human-machine interface module 2 is provided on the outward-facing side of the frame 1. The human-machine interface module 2 includes a display screen and buttons, and is used to set the number of break-in cycles, control start and stop, and display status. Furthermore, the universal coupling 7 includes a universal joint A71, a connecting shaft A72, a universal joint B73, and a connecting shaft B74 connected in sequence. The universal joint A71 is connected to the output shaft of the motor, and the outer end of the connecting shaft B74 is connected to the handle shaft of the disconnect switch. Furthermore, the connecting part includes several legs, and the ends of the legs are equipped with electromagnets 6. The frame 1 is attached to the surface of the disconnect switch by electromagnets 6, avoiding damage to the disconnect switch housing by bolt connection, and the position of the frame 1 can be adjusted arbitrarily by the electromagnets 6. Furthermore, a safety protection module is provided on the frame 1, including a current sensor, an alarm indicator light 3, and an emergency stop button 4. The current sensor is used to detect whether the motor current is overloaded; if overloaded, an alarm is triggered. The current sensor is connected to the controller signal.

[0018] Furthermore, the counter 9 of this invention combines a position sensor and a counter. The position sensor detects the position of the connecting shaft B74, and automatically sends a signal to the counter to count once each time the connecting shaft B74 reaches the open position. The working principle of this invention is as follows: First, the open side of the frame 1 faces the disconnecting switch, so that the electromagnet 6 contacts the outer shell of the disconnecting switch, and the connecting shaft B74 is fixedly connected to the handle shaft of the disconnecting switch. Then, the electromagnet 6 is energized to make it strongly magnetic, thereby firmly adsorbing the entire device onto the outer surface of the disconnecting switch. Then, the number of break-in cycles is set through the human-machine interaction module 2. After the setting is completed, the drive module 5 is started, and the control module 8 controls the drive module 5 to drive the handle shaft to perform a closed-open cycle. After each closed or open operation, the counter 9 accumulates the count and feeds back to the control module 8. After the set number of cycles is reached, the control module 8 controls the motor to automatically stop and issues a completion prompt through the human-machine interaction module 2. During operation, if the current sensor detects an overload in the motor current, it indicates a blockage in the transmission path from the motor to the handle shaft. At this time, alarm indicator 3 will automatically sound an alarm, and the current sensor will send a signal to the controller to stop the drive module 5. If an emergency is detected during operation, the operator can also press the emergency stop button 4 to stop the drive module 5 immediately.

[0019] After the break-in period is complete, the entire device can be removed from the isolating switch by de-energizing the electromagnet 6. This invention avoids the cumbersome transition adjustments and break-in steps required due to positional misalignment between the motor shaft and the handle shaft by incorporating a universal coupling 7. The flexible rotation characteristics of the universal joint ensure that the handle shaft remains aligned at all times, thereby improving the operating efficiency and reliability of the entire transmission system.

Claims

1. A break-in device for the opening and closing of a ring main unit disconnector switch, characterized in that: The device includes a frame with an opening on one side. The opening has a connection part for connecting to a disconnecting switch. The frame is equipped with a drive module and a control module. The drive module includes a motor with its output shaft facing the opening and equipped with a universal coupling for connecting to the handle shaft of the disconnecting switch. The control module includes a controller and a counter. The controller is connected to the counter and the motor signal, and is used to control the start, stop, and direction of the motor, as well as the number of opening and closing cycles.

2. The ring main unit disconnector switch break-in device according to claim 1, characterized in that: The frame has a human-machine interaction module on the outward side. The human-machine interaction module includes a display screen and buttons. The human-machine interaction module is used to set the number of break-in cycles, start and stop control, and status display.

3. The ring main unit disconnector switch break-in device according to claim 1, characterized in that: The universal coupling includes a cross universal joint A, a connecting shaft A, a cross universal joint B, and a connecting shaft B connected in sequence. The cross universal joint A is connected to the output shaft of the motor, and the outer end of the connecting shaft B is connected to the handle shaft of the disconnect switch.

4. The ring main unit disconnector switch break-in device according to claim 1, characterized in that: The connecting part includes several legs, and the ends of the legs are equipped with electromagnets. The frame is attached to the surface of the disconnecting switch by electromagnets.

5. The ring main unit disconnector switch break-in device according to claim 1, characterized in that: The frame is equipped with a safety protection module, which includes a current sensor, an alarm indicator light, and an emergency stop button. The current sensor is used to detect whether the motor current is overloaded. If overloaded, an alarm indicator is triggered.

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