Double-power-supply switching device for cage elevator

Abstract

The double-power-supply switching device for the cage elevator comprises the elevator, one end of a first circuit is fixedly connected to the elevator, the other end of the first circuit is connected with the input end of the double-power-supply switching device, and the output end of the double-power-supply switching device is connected with a third circuit; the first circuit is connected with one end of the second circuit, and the other end of the second circuit is connected with the input end of the power supply switching device; the output end of the power switching device is connected with a fourth circuit, and the power switching device is electrically connected with the upper computer. The first circuit is fixedly connected with a first switch; the third circuit is fixedly connected with a second switch; and the fourth circuit is fixedly connected with a third switch. The device has the advantages of being reasonable in structural design, ingenious in conception, convenient to operate, safe and reliable, two different power receiving circuits are connected, safe switching can be achieved after abnormal power failure of the cage elevator, normal and stable operation of the cage elevator is guaranteed, and safety of operators is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a dual power supply switching device for a cage hoist. Background Technology

[0002] Mine hoists are important transportation equipment in modern coal mine production systems. They are usually divided into main shaft hoisting systems and auxiliary shaft hoisting systems. The hoisting container of the main shaft hoisting system is a skip, which is mainly used for hoisting coal, while the hoisting container of the auxiliary shaft hoisting system is a cage, which is mainly used for transporting personnel, equipment, construction materials and machinery.

[0003] The cage hoists currently in use are mainly used for transporting production workers every day. Ensuring the reliable and stable power supply of the hoists is crucial. When transporting workers, if the power grid fails or the hoist suddenly loses power, it can easily cause the equipment to stop operating, communication systems to be interrupted, and personnel to be trapped. In order to ensure the reliability of the power supply for critical personnel transport equipment, it is necessary to design a device that can solve the problem of equipment power outages in the first instance. When the cage hoist loses power, the device can automatically switch to the backup power supply line to ensure the safe and stable operation of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a dual power supply switching device for a cage hoist that has a reasonable structural design, ingenious concept, convenient operation, safety and reliability, and can be connected to two different power receiving lines. After an abnormal power outage, it can safely switch between the two power lines, ensuring the normal and stable operation of the cage hoist and the safety of the operators.

[0005] This utility model discloses a dual power supply switching device for a cage hoist, comprising a hoist, one end of a first circuit fixedly connected to the hoist, the other end of the first circuit being connected to the input end of the dual power supply switching device, and the output end of the dual power supply switching device being connected to a third circuit; one end of the first circuit is connected to a second circuit, and the other end of the second circuit is connected to the input end of the dual power supply switching device; the output end of the dual power supply switching device is connected to a fourth circuit, and the dual power supply switching device is electrically connected to a host computer.

[0006] A first switch is fixedly connected to the first circuit; a second switch is fixedly connected to the third circuit; and a third switch is fixedly connected to the fourth circuit.

[0007] The first and third circuits form a power supply line that normally supplies power to the hoist, ensuring its normal operation. At this time, the first and second switches are closed. The second and fourth circuits form another power supply line. When the first and third circuits are powered normally, they are interlocked to the normally open state via a dual power supply switching device, and the third switch is open. When the power supply to the first and third circuits fails, the dual power supply switching device immediately activates, closing the first and third switches. The second switch in the first and third circuits is interlocked to the normally open state by the dual power supply switching device, ensuring power supply to the hoist. The hoist is equipped with an uninterrupted and safe power supply system, consisting of a first and third circuit as one power supply line, and a second and fourth circuit as another. When one power supply line fails, the system can switch to the other, enabling rapid switching between the two power supply lines. This solves the problem of dual power supply for the hoist, ensuring stable operation and the safety of transported personnel. It effectively addresses the issue of delayed rescue of passengers in cages after a power outage, providing extra time for rescue and ensuring personnel safety. The system is safe and reliable to use.

[0008] The dual power supply switching device is equipped with an automatic control switch.

[0009] The dual power supply switching device is equipped with a remote control switch.

[0010] The system includes automatic and remote control switches. When the automatic control switch is selected, the first and third circuits form one power supply line, while the second and fourth circuits form another. If one power supply line fails, the system can switch to the other power supply line via the automatic control switch, enabling rapid switching between the two power supply lines. This is convenient, quick, and safe. When the remote control switch is selected, the dual power supply switching device can be connected to a network, allowing real-time data transmission to a remote control room. The host computer can monitor the on-site power supply status and remotely operate the device to switch power supplies, ensuring a stable, reliable, and safe power supply for the hoist.

[0011] The first circuit, second circuit, third circuit, and fourth circuit are three-phase circuits.

[0012] Setting the first, second, third, and fourth circuits as a three-phase circuit can ensure the stable, safe, and reliable operation of the hoist and meet the stable voltage supply requirements of the hoist.

[0013] The beneficial effects of this utility model are:

[0014] 1) The first and third circuits form a power supply line, supplying power to the hoist under normal conditions to ensure its normal operation. At this time, the first and second switches are closed. The second and fourth circuits form another power supply line. When the first and third circuits are powered normally, they are interlocked to the normally open state via a dual power supply switching device, and the third switch is open. When the power supply to the first and third circuits fails, the dual power supply switching device immediately activates, closing the first and third switches, and interlocking the second switch in the first and third circuits to the normally open state via the dual power supply switching device to ensure power supply. The hoist is equipped with an uninterrupted and safe power supply, consisting of a first and a third circuit as one power supply line, and a second and a fourth circuit as another. When one power supply line fails, it can switch to the other power supply line, enabling rapid switching between the two power supply lines. This solves the problem of dual power supply for the hoist, fully ensuring its stable operation and the safety of transported personnel. It effectively addresses the issue of not being able to rescue passengers in a timely manner after a power outage during operation of the cage hoist, providing extended rescue time and ensuring personnel safety. The hoist is safe and reliable to use.

[0015] 2) The automatic control switch and remote control switch are configured as follows: When the automatic control switch is selected, the first and third circuits form one power supply line, and the second and fourth circuits form another power supply line. When one power supply line fails, the automatic control switch can be used to switch to the other power supply line, enabling rapid switching between the two power supply lines. This is convenient, quick, safe, and reliable. When the remote control switch is selected, the dual power supply switching device can be connected to a network line, allowing real-time transmission to the remote control room. The host computer can monitor the on-site power supply status and remotely operate the device to switch power supplies, ensuring a stable, reliable, and safe power supply for the hoist.

[0016] 3) Setting the first, second, third, and fourth circuits as three-phase circuits can ensure the stable, safe, and reliable operation of the hoist and meet the stable voltage supply requirements of the hoist.

[0017] 4) The device has a reasonable structural design, ingenious concept, convenient operation, and is safe and reliable. It is connected to two different power lines, which can be safely switched after the cage hoist fails to run normally, ensuring the normal and stable operation of the cage hoist and the safety of the operators. It has a low manufacturing cost and is currently in use with good results. It is worth promoting and applying it on a large scale. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1. Third circuit; 2. Second switch; 3. Automatic control switch; 4. First circuit; 5. First switch; 6. Hoist; 7. Fourth circuit; 8. Third switch; 9. Host computer; 10. Dual power supply switching device; 11. Remote control switch; 12. Second circuit. Detailed Implementation

[0020] Example 1.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] This utility model includes a third circuit 1, a second switch 2, an automatic control switch 3, a first circuit 4, a first switch 5, a hoist 6, a fourth circuit 7, a third switch 8, a host computer 9, a dual power supply switching device 10, and a second circuit 12. Specifically, the hoist 6 has one end of the first circuit 4 fixedly connected to it, and the other end of the first circuit 4 is connected to the input end of the dual power supply switching device 10. The output end of the dual power supply switching device 10 is connected to the third circuit 1. The first circuit 5 is connected to one end of the second circuit 12, and the other end of the second circuit 12 is connected to the input end of the dual power supply switching device 10. The output end of the dual power supply switching device 10 is connected to the fourth circuit 7, and the dual power supply switching device 10 is electrically connected to the host computer 9.

[0023] A first switch 5 is fixedly connected to the first circuit 4; a second switch 2 is fixedly connected to the third circuit 1; and a third switch 8 is fixedly connected to the fourth circuit 7.

[0024] The dual power supply switching device 10 is equipped with an automatic control switch 3.

[0025] The first circuit 4, the second circuit 12, the third circuit 1, and the fourth circuit 7 are three-phase circuits.

[0026] The first circuit 4 and the third circuit 1 form a power supply line with a voltage of 110KV; the second circuit 12 and the fourth circuit 7 form another power supply line with a voltage of 35KV.

[0027] Usage: The first circuit 4 and the third circuit 1 are set as one power supply line, which supplies power to the hoist 6 under normal circumstances to ensure the normal operation of the hoist 6. At this time, the first switch 5 and the second switch 2 are closed, and the second circuit 12 and the fourth circuit 7 are another power supply line. When the first circuit 4 and the third circuit 1 are powered normally, they are interlocked to the normally open state by the dual power supply switching device 10, and the third switch 8 is opened. When the power supply to the first circuit 4 and the third circuit 1 fails, the dual power supply switching device 10 is immediately activated, the power supply state switching first switch 5 and the third switch 8 are closed, and the second switch 2 in the first circuit 4 and the third circuit 1 is interlocked to the normally open state by the dual power supply switching device 10 to ensure uninterrupted and safe power supply to the hoist 6. The first circuit 4 and the third circuit 1 are set as one power supply line, and the second circuit 12 and the fourth circuit 7 are set as another power supply line. When one of the power supply lines fails, it can be switched to the other power supply line by the automatic control switch 3, which can realize the rapid switching between the two power supply lines.

[0028] Example 2.

[0029] This utility model includes a third circuit 1, a second switch 2, an automatic control switch 3, a first circuit 4, a first switch 5, a hoist 6, a fourth circuit 7, a third switch 8, a host computer 9, a dual power supply switching device 10, a remote control switch 11, and a second circuit 12. Specifically, the hoist 6 has one end of the first circuit 4 fixedly connected to it, and the other end of the first circuit 4 is connected to the input end of the dual power supply switching device 10. The output end of the dual power supply switching device 10 is connected to the third circuit 1. The first circuit 5 is connected to one end of the second circuit 12, and the other end of the second circuit 12 is connected to the input end of the dual power supply switching device 10. The output end of the dual power supply switching device 10 is connected to the fourth circuit 7, and the dual power supply switching device 10 is electrically connected to the host computer 9.

[0030] A first switch 5 is fixedly connected to the first circuit 4; a second switch 2 is fixedly connected to the third circuit 1; and a third switch 8 is fixedly connected to the fourth circuit 7.

[0031] The dual power supply switching device 10 is equipped with an automatic control switch 3.

[0032] The dual power supply switching device 10 is equipped with a remote control switch 11.

[0033] The first circuit 4, the second circuit 12, the third circuit 1, and the fourth circuit 7 are three-phase circuits.

[0034] The first circuit 4 and the third circuit 1 form a power supply line with a voltage of 110KV; the second circuit 12 and the fourth circuit 7 form another power supply line with a voltage of 35KV.

[0035] Usage: The first circuit 4 and the third circuit 1 are set as one power supply line, which supplies power to the hoist 6 under normal circumstances to ensure the normal operation of the hoist 6. At this time, the first switch 5 and the second switch 2 are closed, and the second circuit 12 and the fourth circuit 7 are another power supply line. When the first circuit 4 and the third circuit 1 are powered normally, they are interlocked to the normally open state by the dual power supply switching device 10, and the third switch 8 is opened. When the power supply to the first circuit 4 and the third circuit 1 fails, the dual power supply switching device 10 is immediately activated, the power supply state switching first switch 5 and the third switch 8 are closed, and the second switch 2 in the first circuit 4 and the third circuit 1 is interlocked to the normally open state by the dual power supply switching device 10 to ensure uninterrupted and safe power supply to the hoist 6. The first circuit 4 and the third circuit 1 are set as one power supply line, and the second circuit 12 and the fourth circuit 7 are set as another power supply line. When one of the power supply lines fails, it can be switched to the other power supply line by the automatic control switch 3, which can realize the rapid switching between the two power supply lines.

[0036] When the remote control switch 11 is selected, the dual power supply switching device 10 can be connected to the network line and can transmit data to the remote control room in real time via the network. The host computer 9 can monitor the power supply status on site and remotely operate the device to switch power supplies, ensuring that the power supply of the hoist 6 is stable, reliable and safe.

Claims

1. A dual-power switching device for a cage hoist, comprising a hoist (6), characterized in that: One end of the first circuit (4) is fixedly connected to the hoist (6), and the other end of the first circuit (4) is connected to the input end of the dual power switching device (10). The output end of the power switching device (10) is connected to the third circuit (1). One end of the first circuit (4) is connected to the second circuit (12), and the other end of the second circuit (12) is connected to the input end of the power switching device (10). The output end of the power switching device (10) is connected to the fourth circuit (7). The power switching device (10) is electrically connected to the host computer (9). A first switch (5) is fixedly connected to the first circuit (4). A second switch (2) is fixedly connected to the third circuit (1). A third switch (8) is fixedly connected to the fourth circuit (7). An automatic control switch (3) is provided on the power switching device (10). A remote control switch (11) is provided on the power switching device (10).

2. The dual power supply switching device for a cage hoist as described in claim 1, characterized in that: The first circuit (4), the second circuit (12), the third circuit (1), and the fourth circuit (7) are three-phase circuits.

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