A rapid testing device for mining truck starter motors

Abstract

This utility model relates to a rapid testing device for starter motors of mining trucks, including a test motor, a magnetic switch, and a meshing mechanism. Its features include a mobile trolley, testing components, and a testing support frame. The mobile trolley includes a base plate, a housing, rollers, and a handle. The testing components include a battery, an air switch, a control board, and a speed measuring unit. The battery is located on the bottom left side of the housing, the air switch is located on the upper right side panel of the housing, and the control board is mounted on the front side panel of the housing, including a voltmeter, a start button, and a power switch. The speed measuring unit includes a speed measuring bracket panel, a tachometer, and a speed sensor, located on the right side of the upper cover. The speed measuring unit is used to detect the output speed of the motor and output the detection information displayed on the tachometer. This utility model allows for convenient and rapid testing of starter motors. This device saves time and labor, reduces costs, and improves the efficiency of heavy-duty mining trucks.

Description

Technical Field

[0001] This utility model belongs to the field of starter motor testing devices, and in particular a rapid testing device for starter motors of mining trucks. Technical Background

[0002] Starter motors are installed on the engines of heavy-duty mining trucks operating in open-pit mines. Due to frequent loading and unloading operations, especially in winter when the weather is cold in the north, the starting torque of the vehicles is high, the starting time is too long, and the starting current is high, resulting in a high failure rate of the starter motors. Currently, starter motor failures cannot be detected on-site. It is necessary to disassemble the entire motor assembly to locate and test the fault point, and then reinstall it on the heavy-duty mining truck for testing. This situation affects cost and production efficiency, and there is an urgent need for a rapid starter motor testing solution. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a rapid testing device for the starter motor of mining trucks, which allows for direct and rapid testing and fault location on-site without disassembling the starter motor assembly.

[0004] This utility model is achieved through the following technical solution: This utility model discloses a rapid testing device for a mining truck starter motor. The mining truck starter motor includes a test motor, a magnetic switch, and a meshing mechanism. Its distinguishing feature is that it also includes a mobile trolley, testing components, and a testing support frame. The mobile trolley includes a base plate, a housing set on the base plate, rollers set on the lower part of the base plate and a handle set on the right side of the base plate. The housing is also provided with a top cover and a top cover lifting ring, and a cable outlet is opened on the side plate at the left end of the housing. The test components include a battery, an air switch, a control board, and a speed measuring unit. The battery is located on the bottom left side of the enclosure, the air switch is located on the upper right side panel of the enclosure, and the control board is mounted on the front side panel of the enclosure, including a voltmeter, a start button, and a power switch. The speed measuring unit includes a speed measuring bracket panel, a tachometer, and a speed sensor. The speed measuring bracket panel is located on the right side of the enclosure's upper cover, the speed sensor is located at the top of the speed measuring bracket panel, and the tachometer is located on the speed measuring bracket panel. The speed measuring unit is used to detect the output speed of the motor and output the detection information displayed on the tachometer. The motor and the magnetic switch are placed on the test support frame, and the motor's engagement mechanism is located above the speed sensor. A buzzer and an indicator light are installed on the connection line between the magnetic switch and the motor.

[0005] As a further description of the above technical solution: an insulating pad is provided on the upper cover, and a handle ring is installed on the upper part of the upper cover.

[0006] As a further description of the above technical solution: the positive terminal of the battery is electrically connected to the air switch, start button, voltmeter, magnetic switch, motor, indicator light, buzzer, speed sensor, tachometer, and power switch; the negative terminal of the battery is electrically connected to the power switch, the input terminal of the power switch is electrically connected to the output terminal of the negative cable, the input terminal of the negative cable is electrically connected to the negative terminal of the motor, the input terminal of the air switch is electrically connected to the positive terminal of the battery, the output terminal of the air switch is electrically connected to the positive terminal (A) of the magnetic switch via the positive cable, and the output terminal of the air switch is connected to the control cable. The wire is electrically connected to the start button and the positive terminal (B) of the magnetic switch coil; the negative terminal (A) of the magnetic switch is electrically connected to the positive terminal of the motor; an indicator light and a buzzer are installed on the connection line between the negative terminal (B) of the magnetic switch coil and the negative terminal of the motor; the output terminal of the air switch is also electrically connected to the input terminals of the voltmeter and the tachometer via cables; the output terminal of the tachometer is electrically connected to the input terminal of the negative cable; the input terminal of the speed sensor is electrically connected to the air switch; the output terminal of the speed sensor is electrically connected to the tachometer; and the output terminal of the tachometer is electrically connected to the input terminal of the negative cable.

[0007] Compared with the prior art, the beneficial effects of this utility model are: This utility model of a rapid testing device for starter motors of heavy-duty mining trucks enables rapid testing and assessment of the motor's technical condition, eliminating the need to disassemble the starter motor assembly before testing and locating faults; it achieves the goal of quickly testing and locating starter motor faults without disassembling the starter motor assembly.

[0008] This device is also mobile, allowing for convenient and quick testing of the starter motor next to a mining heavy-duty truck. It saves time and labor, reduces costs, and improves the efficiency of mining heavy-duty trucks. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a circuit block diagram of a rapid testing device for the starter motor of a mining truck.

[0011] In the diagram: 1. Base plate, 2. Housing, 3. Roller, 4. Handle, 5. Battery, 6. Top cover, 7. Insulating pad, 8. Top cover handle, 9. Buzzer, 10. Indicator light, 11. Motor, 12. Magnetic switch, 13. Engaging mechanism, 14. Speed ​​sensor, 15. Tachometer, 16. Speed ​​measuring bracket panel, 17. Air switch, 18. Voltmeter, 19. Start button, 20. Power switch, 21. Cable outlet, 22. Test support frame, 23. Negative cable, 24. Motor negative terminal, 25. Positive cable, 26. Magnetic switch negative terminal (A), 27. Magnetic switch positive terminal, 28. Control cable, 29. Magnetic switch coil positive terminal, 30. Magnetic switch coil negative terminal, 31. Motor positive terminal. Detailed Implementation

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0013] like Figure 1 and Figure 2 As shown, this utility model discloses a rapid testing device for a mining truck electric motor, comprising a tested electric motor 11, a magnetic switch 12, and a meshing mechanism 13. Its distinguishing feature is that it further includes a mobile trolley, testing components, and a testing support frame. The mobile trolley includes a base plate 1, a box 2 set on the base plate, rollers 3 set on the lower part of the base plate 1 and a handle 4 set on the right side of the base plate 1. The box 2 is also provided with an upper cover 6 and an upper cover lifting ring 8. A cable outlet 21 is opened on the side plate at the left end of the box 2. The test components include a battery 5, an air switch 17, a control board, and a speed measuring unit. The battery 5 is located on the bottom left side inside the housing 2, providing power to the control board, air switch 17, and speed measuring unit. The air switch 17 is located on the upper right side panel inside the housing 2. The control board is mounted on the front side panel of the housing 2 and includes a voltmeter 18, a start button 19, and a power switch 20. The speed measuring unit includes a speed measuring bracket panel 16, a tachometer 15, and a speed sensor 14. The speed measuring bracket panel 17 is located on the right side of the upper cover of the housing 2. The speed sensor 14 is placed on the upper end of the speed measuring bracket panel 17, and the tachometer 15 is set on the speed measuring bracket panel 16. The tachometer 15 is electrically connected to the speed sensor 14 through a cable. The speed measuring unit is used to detect the speed output by the motor 11 and output the detection information to be displayed on the tachometer 15. The motor 11 and the magnetic switch 12 are placed on the test support frame 22, and the engagement mechanism 13 of the motor 11 is placed above the speed sensor 14. A buzzer 9 and an indicator light 10 are installed on the connection line between the magnetic switch 12 and the motor 11.

[0014] The present invention provides an insulating pad 7 on the upper cover 6 and an upper cover handle ring 8 is installed on the upper part of the upper cover 6.

[0015] The positive terminal of the battery 5 described in this invention is electrically connected to the air switch 17, start button 19, voltmeter 18, magnetic switch 12, motor 11, indicator light 10, buzzer 9, speed sensor 14, tachometer 15, and power switch 20; the negative terminal of the battery 5 is electrically connected to the power switch 20, the input terminal of the power switch 20 is electrically connected to the output terminal of the negative cable 23, the input terminal of the negative cable 23 is electrically connected to the negative terminal 24 of the motor, the input terminal of the air switch 17 is electrically connected to the positive terminal of the battery 5, the output terminal of the air switch 17 is electrically connected to the positive terminal 27 of the magnetic switch via the positive cable 25, and the output terminal of the air switch 17 is connected via a control cable. 28 is electrically connected to the start button 19 and the positive terminal 29 of the magnetic switch coil; the negative terminal 26 of the magnetic switch is electrically connected to the positive terminal 31 of the motor; an indicator light 10 and a buzzer 9 are installed on the connection line between the negative terminal 30 of the magnetic switch coil and the negative terminal 24 of the motor; the output terminal of the air switch 17 is also electrically connected to the input terminals of the voltmeter 18 and the tachometer 15 via cables; the output terminal of the tachometer 15 is electrically connected to the input terminal of the negative cable 23; the input terminal of the speed sensor 14 is electrically connected to the air switch 17; the output terminal of the speed sensor 14 is electrically connected to the tachometer 15; and the output terminal of the tachometer 15 is electrically connected to the input terminal of the negative cable 23.

[0016] Before testing, lift the top cover 8 of the housing 2 mounted on the mobile trolley, open the top cover 6, and check if the wiring connections inside the housing 2 are reliable. Check that the air switch 17 is in the ON position. Then close the top cover 6 and place the starter motor to be tested on the test support frame 22. The test support frame 22 is insulated from the top cover 6 by an insulating pad 7. The engagement mechanism 13 is positioned above the speed sensor 14. To ensure the starter motor is stably placed on the test support frame 22, the support surface of the test support frame 22 of this invention is made into an arc shape.

[0017] 1. Disconnect the positive cable 25, connect the negative cable 23 to the negative terminal 24 of the motor 11 and the negative terminal of the battery 5, connect the control cable 28 to the positive terminal 29 of the magnetic switch coil and the positive terminal of the output of the start button 19, turn the power switch 20 to the ON position, and check whether the voltage value of the voltmeter 18 is above 24V. 2. Press the start button 19 to connect the line for testing: (1) The magnetic switch 12 for starting the motor does not work, the buzzer 9 does not sound and the indicator light 10 does not light up. Test result: The internal circuit of the magnetic switch 12 is faulty. When the magnetic switch 12 of the motor is activated, the buzzer sounds 9 times and the indicator light 10 illuminates, but the pinion of the meshing mechanism 13 does not fully engage. Test result: Meshing mechanism 13 is faulty. When the magnetic switch 12 that starts the motor is activated, buzzer 9 sounds and indicator light 10 illuminates. At this time, the pinion gear of the engagement mechanism 13 is thrown into place. Test results: Magnetic switch 12 and engagement mechanism 13 are working normally.

[0018] 1. Detection Method (1) Method 1: When the magnetic switch 12 of the motor is activated and the engagement mechanism 13 is working properly, connect the positive cable 25, connect the negative cable 23 to the negative terminal 24 of the motor 11 and the negative terminal of the battery 5, connect the control cable 28 to the positive terminal 29 of the magnetic switch coil of the motor 11 and the output end of the start button 19, turn the power switch 20 to the on position, press the start button 19, and connect the circuit for testing.

[0019] (2) Method 2: Turn the power switch 20 to the off position, connect one end of the positive cable 25 to the air switch 17 and the positive terminal of the battery 5, and connect the other end directly to the positive terminal 31 of the motor 11. When testing, turn the power switch 20 to the on position and connect the circuit for testing.

[0020] 2. Testing: (1) The pinion of the starting motor engagement mechanism 13 was not rotating, as detected by the speed sensor 14 and the tachometer 15. Test result: the internal circuit of the motor 11 was open. The speed sensor 14 and tachometer 15 detected that the motor 11 was not working, and the air switch 17 automatically disconnected. Test result: short circuit in the internal wiring of motor 11. The speed sensor 14 and tachometer 15 detected that the pinion of the starter motor was rotating normally, and the test result showed that the motor 11 was in good technical condition.

[0021] It should be noted that in this article, terms such as "upper," "lower," "left," and "right" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly indicating the number of technical features indicated.

Claims

1. A rapid testing device for a mining truck starter motor, comprising a test motor, a magnetic switch, and a meshing mechanism, characterized in that: It also includes mobile trolleys, test components, and test support frames. The mobile trolley includes a base plate, a housing set on the base plate, rollers set on the lower part of the base plate and a handle set on the right side of the base plate. The housing is also provided with a top cover and a top cover lifting ring, and a cable outlet is opened on the side plate at the left end of the housing. The test components include a battery, an air switch, a control board, and a speed measuring unit. The battery is located on the bottom left side of the enclosure, the air switch is located on the upper right side panel of the enclosure, and the control board is mounted on the front side panel of the enclosure, including a voltmeter, a start button, and a power switch. The speed measuring unit includes a speed measuring bracket panel, a tachometer, and a speed sensor. The speed measuring bracket panel is located on the right side of the enclosure's upper cover, the speed sensor is located at the top of the speed measuring bracket panel, the tachometer is located on the speed measuring bracket panel, the motor and magnetic switch are placed on the test support frame, and the starting motor's engagement mechanism is located above the speed sensor. An indicator light and a buzzer are installed on the connection line between the magnetic switch and the motor.

2. The rapid testing device for the starter motor of a mining truck according to claim 1, characterized in that, An insulating pad is provided on the top cover, and a top cover handle ring is installed on the upper part of the top cover.

3. The rapid testing device for the starter motor of a mining truck according to claim 1, characterized in that, The positive terminal of the battery is electrically connected to the air switch, start button, voltmeter, magnetic switch, motor, indicator light, buzzer, speed sensor, tachometer, and power switch; the negative terminal of the battery is electrically connected to the power switch, the input terminal of the power switch is electrically connected to the output terminal of the negative cable, the input terminal of the negative cable is electrically connected to the negative terminal of the motor, the input terminal of the air switch is electrically connected to the positive terminal of the battery, the output terminal of the air switch is electrically connected to the positive terminal of the magnetic switch via the positive cable, and the output terminal of the air switch is connected to the start button via the control cable. The button and the positive terminal of the magnetic switch coil are electrically connected; the negative terminal of the magnetic switch is electrically connected to the positive terminal of the motor. An indicator light and a buzzer are installed on the connection line between the negative terminal of the magnetic switch coil and the negative terminal of the motor. The output terminal of the air switch is also electrically connected to the input terminals of the voltmeter and the tachometer via cables. The output terminal of the tachometer is electrically connected to the input terminal of the negative cable. The input terminal of the speed sensor is electrically connected to the air switch, the output terminal of the speed sensor is electrically connected to the tachometer, and the output terminal of the tachometer is electrically connected to the input terminal of the negative cable.

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