Indicator lamp switching circuit and rock loading machine

Abstract

The utility model discloses an indicating lamp switching circuit and a rock loading machine, which are applied to the field of circuit design. Wherein a first end of the power supply system is connected with a first end of a first normally closed contact of the intermediate relay; the second end of the first normally-closed contact of the intermediate relay is connected with the first end of the second normally-closed contact of the intermediate relay, the first end of the contactor and the first end of the start-stop circuit; the second end of the second normally-closed contact of the intermediate relay and the second end of the contactor are respectively connected with the first ends of the corresponding indicating lamps. The second end of each indicating lamp is connected with the second end of the start-stop circuit and the first end of the third normally-closed contact of the intermediate relay. The second end of the third normally-closed contact of the intermediate relay is connected with the second end of the power supply system. By means of light color switching, constructors can judge whether people can pass through the mining underground equipment or not, safety is improved, meanwhile, a driver of the rock loading machine does not need to frequently cut off power or get off, the service life of the electric control box is prolonged, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit design, and in particular to an indicator light switching circuit and a rock loading machine. Background Technology

[0002] During the general excavation, waste removal, and parallel anchoring operations of the rock loading machine, construction workers inevitably need to move back and forth, but the rock loading machine must be stopped and the power turned off before people can pass by.

[0003] In existing technology, the lights on the rock-loading machine are in illumination mode both during operation and when it is stopped. Therefore, when pedestrians need to pass, construction workers outside the warning line use their miner's lamps to signal the driver inside the machine. The driver then stops the machine, gets out, and cuts off the power, turning off the lights. Pedestrians can only pass after seeing the machine's lights turn off. However, due to the high noise levels in the construction environment, pedestrians outside the warning line are too far from the machine to determine if it is stopped by sound; they can only rely on the lights. Furthermore, the machine must be stopped and the power cut off whenever someone requests passage while the driver is working. The high frequency of personnel crossing the machine significantly increases the frequency of power interruptions and restorations to the control box, leading to a significantly shortened lifespan and increased replacement frequency. Additionally, the driver's frequent getting in and out of the machine to interrupt and restore power increases physical labor and reduces work efficiency.

[0004] In view of the above-mentioned technology, finding an indicator light switching circuit is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an indicator light switching circuit and a rock-loading machine. This solves the problem in existing technologies where only lights can be used to determine whether someone is passing under the rock-loading machine, leading to a shortened lifespan and reduced work efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides an indicator light switching circuit, including: a power supply system, a lighting system, and a control system, wherein the control system includes an intermediate relay, a contactor, and a start / stop circuit; the lighting system includes at least two indicator lights of different colors;

[0007] The first end of the power supply system is connected to the first end of the first normally closed contact of the intermediate relay.

[0008] The second end of the first normally closed contact of the intermediate relay is connected to the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the start / stop circuit;

[0009] The second terminal of the second normally closed contact of the intermediate relay and the second terminal of the contactor are respectively connected to the first terminal of the corresponding indicator light.

[0010] The second terminal of each indicator light is connected to the second terminal of the start / stop circuit and the first terminal of the third normally closed contact of the intermediate relay;

[0011] The second terminal of the third normally closed contact of the intermediate relay is connected to the second terminal of the power supply system.

[0012] Preferably, the start / stop circuit includes: a proximity start button and a proximity stop button;

[0013] Among them, the first end of the proximity start button is connected to the second end of the first normally closed contact of the intermediate relay, the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the normally open contact of the intermediate relay as the first end of the start / stop circuit; the second end of the proximity start button is connected to the first end of the proximity stop button and the second end of the normally open contact of the intermediate relay.

[0014] The second terminal of the proximity stop button is connected to the second terminal of the start / stop circuit, the second terminal of each indicator light, and the second terminal of the power system.

[0015] Preferably, the start / stop circuit further includes: a remote start button and a remote stop button;

[0016] Among them, the first end of the remote start button is connected to the first end of the local start button, the second end of the first normally closed contact of the intermediate relay, the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the normally open contact of the intermediate relay; the second end of the remote start button is connected to the second end of the local start button, the first end of the local stop button, and the second end of the normally open contact of the intermediate relay.

[0017] The first end of the remote stop button is connected to the second end of the local stop button, and the second end of the remote stop button is connected to the second end of each indicator light and the second end of the power system.

[0018] Preferably, the power supply system is an isolated power transmission transformer;

[0019] Among them, the first end of the secondary coil of the isolation power transmission transformer is connected to the first end of the first normally closed contact of the intermediate relay as the first end of the power supply system.

[0020] The second terminal of the secondary coil of the isolation power transmission transformer is connected to the second terminal of each indicator light and the second terminal of the start / stop circuit, serving as the second terminal of the power supply system.

[0021] Preferably, it further includes: a first fuse and a second fuse;

[0022] The first fuse is installed in the primary coil of the isolation power transmission transformer, and the first end of the first fuse is connected to the power supply voltage terminal, and the second end of the first fuse is connected to the first end of the primary coil of the isolation power transmission transformer.

[0023] The second fuse is installed in the secondary coil of the isolation power transmission transformer, and the first end of the second fuse is connected to the first end of the secondary coil of the isolation power transmission transformer. The second end of the second fuse is connected to the first end of the first normally closed contact of the intermediate relay.

[0024] Preferably, it also includes: an emergency button;

[0025] The first end of the emergency button is connected to the second end of the first normally closed contact of the intermediate relay, and the second end of the emergency button is connected to the first end of the start / stop circuit.

[0026] Preferably, it also includes: a motor integrated protector;

[0027] The first terminal of the motor integrated protector is connected to the second terminal of the start-stop circuit, and the second terminal of the motor integrated protector is connected to the second terminal of each indicator light and the first terminal of the third normally closed contact of the intermediate relay.

[0028] Preferably, it further includes: a display device;

[0029] The first end of the display device is connected to the first end of the power supply system and the first end of the first normally closed contact of the intermediate relay, and the second end of the display device is connected to the second end of the power supply system and the second end of the third normally closed contact of the intermediate relay.

[0030] Preferably, it further includes: an electric bell device;

[0031] The first end of the electric bell device is connected to the second end of any indicator light, and the second end of the electric bell device is connected to the second end of the other indicator lights, the second end of the start / stop circuit, and the first end of the third normally closed contact of the intermediate relay.

[0032] On the other hand, this application also provides a rock loading machine, including the aforementioned indicator light switching circuit.

[0033] This utility model provides an indicator light switching circuit, comprising: a power supply system, a lighting system, and a control system. The control system includes an intermediate relay, a contactor, and a start / stop circuit. The lighting system includes at least two indicator lights of different colors. The first terminal of the power supply system is connected to the first terminal of the first normally closed contact of the intermediate relay. The second terminal of the first normally closed contact of the intermediate relay is connected to the first terminal of the second normally closed contact of the intermediate relay, the first terminal of the contactor, and the first terminal of the start / stop circuit. The second terminal of the second normally closed contact of the intermediate relay and the second terminal of the contactor are respectively connected to the first terminal of the corresponding indicator light. The second terminal of each indicator light is connected to the second terminal of the start / stop circuit and the first terminal of the third normally closed contact of the intermediate relay. The second terminal of the third normally closed contact of the intermediate relay is connected to the second terminal of the power supply system. Therefore, this application, through the switching of the lighting system's light colors, allows construction personnel to determine whether the current state of the underground mining equipment is safe for passage, improving safety. Simultaneously, it eliminates the need for frequent power outages and disembarking for the loading machine operator, extending the service life of the electrical control box and improving work efficiency. Attached Figure Description

[0034] To more clearly illustrate the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A structural diagram of an indicator light switching circuit provided in the application embodiment;

[0036] Figure 2 The following is a complete structural diagram of an indicator light switching circuit provided for the application embodiment. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] The core of this utility model is to provide an indicator light switching circuit and a rock loading machine.

[0039] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Figure 1A structural diagram of an indicator light switching circuit provided in the application embodiment is shown in the figure. It includes: a power supply system 1, a lighting system 2, and a control system 3. The control system includes an intermediate relay, a contactor KM, and a start / stop circuit 4. The lighting system 2 includes at least two indicator lights L1 and L2 of different colors. The specific connections are as follows: the first terminal of the power supply system 1 is connected to the first terminal of the first normally closed contact KA1 of the intermediate relay; the second terminal of the first normally closed contact KA1 of the intermediate relay is connected to the first terminal of the second normally closed contact KA2 of the intermediate relay, the first terminal of the contactor KM, and the first terminal of the start / stop circuit 4; the second terminal of the second normally closed contact KA2 of the intermediate relay and the second terminal of the contactor KM are respectively connected to the first terminals of the corresponding indicator lights L1 and L2; the second terminals of each indicator light L1 and L2 are connected to the second terminal of the start / stop circuit 4 and the first terminal of the third normally closed contact KA3 of the intermediate relay; the second terminal of the third normally closed contact KA3 of the intermediate relay is connected to the second terminal of the power supply system 1.

[0041] In a specific embodiment, the principle of the indicator light switching circuit provided in this application is as follows: the power supply system 1 supplies power to the lighting system 2 and the control system 3; in the control system 3, the circuit is switched on and off by controlling the conduction or disconnection of the intermediate relay and the contactor KM, while the start-stop circuit 4 realizes the overall start and stop of the circuit; in the lighting system 2, the current status of the rock-loading machine and whether it is permissible for personnel to pass under the rock-loading machine are determined by the brightness or color of different indicator lights L1 and L2. That is, when the first normally closed contact KA1 and the second normally closed contact KA2 of the intermediate relay are closed and the contactor KM is open, the corresponding indicator light L1 displays the first color (e.g., white); when the first normally closed contact KA1 and the contactor KM are closed and the second normally closed contact KA2 of the intermediate relay is closed, the corresponding indicator light L2 displays the second color (e.g., red).

[0042] This utility model provides an indicator light switching circuit, comprising: a power supply system, a lighting system, and a control system. The control system includes an intermediate relay, a contactor, and a start / stop circuit. The lighting system includes at least two indicator lights of different colors. The first terminal of the power supply system is connected to the first terminal of the first normally closed contact of the intermediate relay. The second terminal of the first normally closed contact of the intermediate relay is connected to the first terminal of the second normally closed contact of the intermediate relay, the first terminal of the contactor, and the first terminal of the start / stop circuit. The second terminal of the second normally closed contact of the intermediate relay and the second terminal of the contactor are respectively connected to the first terminal of the corresponding indicator light. The second terminal of each indicator light is connected to the second terminal of the start / stop circuit and the first terminal of the third normally closed contact of the intermediate relay. The second terminal of the third normally closed contact of the intermediate relay is connected to the second terminal of the power supply system. Therefore, this application, through the switching of the lighting system's light colors, allows construction personnel to determine whether the current state of the underground mining equipment is safe for passage, improving safety. Simultaneously, it eliminates the need for frequent power outages and disembarking for the loading machine operator, extending the service life of the electrical control box and improving work efficiency.

[0043] Based on the above embodiments, such as Figure 2 As shown, the start / stop circuit 4 includes: a local start button SB4, a local stop button SB4, a remote start button SB3, and a remote stop button SB5. The specific connections are as follows: the first terminal of the local start button SB4 serves as the first terminal of the start / stop circuit 4 and is connected to the second terminal of the first normally closed contact KA1 of the intermediate relay, the first terminal of the second normally closed contact KA2 of the intermediate relay, the first terminal of the contactor KM, and the first terminal of the normally open contact KA4 of the intermediate relay; the second terminal of the local start button SB4 is connected to the first terminal of the local stop button SB4 and the second terminal of the normally open contact KA4 of the intermediate relay; the second terminal of the local stop button SB4 serves as the second terminal of the start / stop circuit 4 and is connected to the second terminals of each indicator light L1 and L2 and the second terminal of the power system 1; the first terminal of the remote start button SB5... One end is connected to the first terminal of the local start button SB4, the second terminal of the first normally closed contact KA1 of the intermediate relay, the first terminal of the second normally closed contact KA2 of the intermediate relay, the first terminal of the contactor KM, and the first terminal of the normally open contact KA4 of the intermediate relay; the second terminal of the remote start button SB3 is connected to the second terminal of the local start button SB4, the first terminal of the local stop button SB4, and the second terminal of the normally open contact KA4 of the intermediate relay; the first terminal of the remote stop button SB5 is connected to the second terminal of the local stop button SB4, and the second terminal of the remote stop button SB5 is connected to the second terminals of each indicator light L1 and L2 and the second terminal of the power system 1. In addition,

[0044] In a specific embodiment, the indicator light switching circuit provided in this application can realize both remote and local control. Therefore, it is necessary to set start / stop buttons (remote start button SB3 and remote stop button SB5) for remote control and start / stop buttons (local start button SB4 and local stop button SB4) for process control in the start / stop circuit 4. Since the stop button is used to ensure safety, the remote stop button SB5 and local stop button SB4 are connected in series in the circuit; while the start button is used to ensure operation, so the remote start button SB3 and local start button SB4 are connected in parallel in the circuit.

[0045] In addition, such as Figure 2 As shown, power system 1 is an isolated power transmission transformer T. The first end of the secondary coil of the isolated power transmission transformer T serves as the first terminal of power system 1 and is connected to the first terminal of the first normally closed contact KA1 of the intermediate relay. The second end of the secondary coil of the isolated power transmission transformer T serves as the second terminal of power system 1 and is connected to the second terminals of each indicator light L1 and L2 and the second terminal of the start / stop circuit 4. Power system 1 also includes: a first fuse FU1 and a second fuse FU2. The first fuse FU1 is located in the primary coil of the isolated power transmission transformer T, and its first terminal is connected to the power supply voltage terminal; its second terminal is connected to the first terminal of the primary coil of the isolated power transmission transformer T. The second fuse FU2 is located in the secondary coil of the isolated power transmission transformer T, and its first terminal is connected to the first terminal of the secondary coil of the isolated power transmission transformer T, and its second terminal is connected to the first terminal of the first normally closed contact KA1 of the intermediate relay. This is used to protect the circuit during short circuits or overcurrent faults.

[0046] In addition, it includes: an emergency button SB1, a motor integrated protector 5, a display device 6, and an electric bell device 7; wherein, the first end of the emergency button SB1 is connected to the second end of the first normally closed contact KA1 of the intermediate relay, and the second end of the emergency button SB1 is connected to the first end of the start-stop circuit 4; the first end of the motor integrated protector 5 is connected to the second end of the start-stop circuit 4, and the second end of the motor integrated protector 5 is connected to the second ends of each indicator light L1 and L2 and the first end of the third normally closed contact KA3 of the intermediate relay; the first end of the display device 6 is connected to the first end of the power system 1 and the first end of the first normally closed contact KA1 of the intermediate relay, and the second end of the display device 6 is connected to the second end of the power system 1 and the second end of the third normally closed contact KA3 of the intermediate relay; the first end of the electric bell device 7 is connected to the second end of any indicator light L1 or L2, and the second end of the electric bell device 7 is connected to the second ends of the remaining indicator lights L2 or L1, the second end of the start-stop circuit 4, and the first end of the third normally closed contact KA3 of the intermediate relay.

[0047] In addition, between the start / stop circuit and the motor integrated protector 5, there is also a motor integrated protector KA5. The motor integrated protector KA5 is used to monitor the load, leakage current and fault conditions of the control module. When there is no leakage current and other faults, the motor integrated protector KA5 closes to prepare for the switching of warning lights and lighting.

[0048] Among them, the emergency button SB1 is used to ensure the safe operation of the circuit; the display device 6 is used to observe the circuit's operating status and fault conditions; and the electric bell device 7 is used to remind the operator of the current circuit's operating status and fault conditions.

[0049] It should be noted that the embodiments provided in this application are only one possible implementation method, but are not limited to this only implementation method. Users can set their own implementation methods according to their needs.

[0050] Therefore, this application enables construction personnel to judge whether the current state of the underground mining equipment is safe for people to pass through by switching the light colors of the lighting system, thus improving safety. At the same time, the rock loading machine operator does not need to frequently stop the power and get off the machine, which extends the service life of the electrical control box and improves work efficiency.

[0051] On the other hand, this application provides a rock loading machine that includes the aforementioned indicator light switching circuit and has the same beneficial effects. The embodiment of the rock loading machine provided in this application is the same as the embodiment of the aforementioned indicator light switching circuit, and will not be described in detail here.

[0052] The above provides a detailed description of an indicator light switching circuit and a rock loading machine provided by this utility model. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0053] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An indicator light switching circuit, characterized in that, include: The system comprises a power supply system, a lighting system, and a control system, wherein the control system includes intermediate relays, contactors, and start / stop circuits; the lighting system includes at least two indicator lights of different colors. The first end of the power supply system is connected to the first end of the first normally closed contact of the intermediate relay. The second end of the first normally closed contact of the intermediate relay is connected to the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the start-stop circuit; The second terminal of the second normally closed contact of the intermediate relay and the second terminal of the contactor are respectively connected to the first terminal of the corresponding indicator light. The second terminal of each indicator light is connected to the second terminal of the start / stop circuit and the first terminal of the third normally closed contact of the intermediate relay; The second terminal of the third normally closed contact of the intermediate relay is connected to the second terminal of the power supply system.

2. The indicator light switching circuit according to claim 1, characterized in that, The start / stop circuit includes: a proximity start button and a proximity stop button; Wherein, the first end of the proximity start button serves as the first end of the start-stop circuit and is connected to the second end of the first normally closed contact of the intermediate relay, the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the normally open contact of the intermediate relay; the second end of the proximity start button is connected to the first end of the proximity stop button and the second end of the normally open contact of the intermediate relay. The second end of the proximity stop button serves as the second end of the start / stop circuit, and is connected to the second end of each of the indicator lights and the second end of the power system.

3. The indicator light switching circuit according to claim 2, characterized in that, The start / stop circuit also includes: a remote start button and a remote stop button; Wherein, the first end of the remote start button is connected to the first end of the local start button, the second end of the first normally closed contact of the intermediate relay, the first end of the second normally closed contact of the intermediate relay, the first end of the contactor, and the first end of the normally open contact of the intermediate relay; the second end of the remote start button is connected to the second end of the local start button, the first end of the local stop button, and the second end of the normally open contact of the intermediate relay. The first end of the remote stop button is connected to the second end of the local stop button, and the second end of the remote stop button is connected to the second end of each of the indicator lights and the second end of the power system.

4. The indicator light switching circuit according to claim 1, characterized in that, The power supply system is an isolated power transmission transformer; Wherein, the first end of the secondary coil of the isolated power transmission transformer serves as the first end of the power supply system and is connected to the first end of the first normally closed contact of the intermediate relay. The second end of the secondary coil of the isolated power transmission transformer serves as the second end of the power system and is connected to the second end of each of the indicator lights and the second end of the start / stop circuit.

5. The indicator light switching circuit according to claim 4, characterized in that, Also includes: First fuse and second fuse; The first fuse is installed in the primary coil of the isolated power transmission transformer, and the first end of the first fuse is connected to the power supply voltage terminal, and the second end of the first fuse is connected to the first end of the primary coil of the isolated power transmission transformer. The second fuse is disposed in the secondary coil of the isolated power transmission transformer, and the first end of the second fuse is connected to the first end of the secondary coil of the isolated power transmission transformer, and the second end of the second fuse is connected to the first end of the first normally closed contact of the intermediate relay.

6. The indicator light switching circuit according to claim 1, characterized in that, Also includes: Emergency button; The first end of the emergency button is connected to the second end of the first normally closed contact of the intermediate relay, and the second end of the emergency button is connected to the first end of the start / stop circuit.

7. The indicator light switching circuit according to claim 1, characterized in that, Also includes: Motor comprehensive protector; The first terminal of the motor integrated protector is connected to the second terminal of the start-stop circuit, and the second terminal of the motor integrated protector is connected to the second terminal of each indicator light and the first terminal of the third normally closed contact of the intermediate relay.

8. The indicator light switching circuit according to claim 1, characterized in that, Also includes: Display device; The first end of the display device is connected to the first end of the power supply system and the first end of the first normally closed contact of the intermediate relay, and the second end of the display device is connected to the second end of the power supply system and the second end of the third normally closed contact of the intermediate relay.

9. The indicator light switching circuit according to any one of claims 1-8, characterized in that, Also includes: Electric bell device; The first end of the electric bell device is connected to the second end of any of the indicator lights, and the second end of the electric bell device is connected to the second ends of the remaining indicator lights, the second end of the start / stop circuit, and the first end of the third normally closed contact of the intermediate relay.

10. A rock loading machine, characterized in that, Includes the indicator light switching circuit as described in any one of claims 1-9.

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