Checking device for speed signal line of traction motor of harmonious locomotive

Abstract

A harmonious locomotive traction motor speed signal line checking device comprises a line connecting device and a line checking checking device, the line connecting device comprises a first wire, a socket and a first alligator clip, one end of the first wire is connected with the first alligator clip, and the other end of the first wire is connected with the socket after being divided into four branch lines; each branch line is provided with a first switch and a first audible and visual alarm; the cable checking device comprises a pin and a second alligator clip connected with the pin through a second wire, and the second wire is provided with a second switch, a power supply and a second audible and visual alarm. The line connecting device can be directly connected to the traction motor speed signal line plug to be inspected, and inspects the speed signal line by cooperating with the line checking inspection device, so that the situation that inspectors cannot accurately confirm the point location of the traction motor speed signal line plug due to the installation position is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive detection, in particular to a device for checking the speed signal line of a traction motor of a Harmony locomotive. Background Art

[0002] When the Harmony locomotive is running, the locomotive control system will collect the motor speed of each traction motor for calculation and comparison, and then control the locomotive traction force. When the speed signal of the traction motor is abnormal, it may cause the traction force of a motor or a motor of the locomotive to decrease, affecting the normal operation of the locomotive. However, since the speed signal line connection plug is on the traction motor under the car, it is difficult for inspectors to see the plug point during inspection due to the high installation position and small space, resulting in uncertain line inspection results, which in turn affects the judgment of the fault point and may cause unnecessary rework. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a device for checking the speed signal line of the traction motor of a Harmony locomotive.

[0004] The utility model adopts the following technical solution to solve the above technical problems: a device for checking the speed signal line of a traction motor of a Harmony locomotive, comprising a line connection device and a line calibration check device, wherein the line connection device comprises a first wire, a socket for plugging with a plug of a speed signal line of a traction motor, and a first alligator clip for clamping on the grounding part of the traction motor to be tested, wherein one end of the first wire is connected to the first alligator clip, and the other end is divided into four branches and connected to the socket, and each branch is provided with a first switch and a first sound and light alarm;

[0005] The line calibration inspection device comprises a pin and a second alligator clip connected to the pin through a second wire, and the second wire is provided with a second switch, a power supply and a second sound and light alarm.

[0006] As a preferred solution, both the first switch and the second switch are boat-type switches.

[0007] As a preferred solution, the second switch is connected to the negative terminal of the power supply through the second wire, and the positive terminal of the power supply is connected to the second sound and light alarm through the second wire.

[0008] As a preferred solution, the line calibration inspection device also includes a first control box, and the second switch, power supply and second sound and light alarm are all arranged in the first control box.

[0009] As a preferred solution, the line connection device further includes a second control box, and the first switch and the first sound and light alarm on each branch are both located in the second control box.

[0010] As a preferred solution, both the first control box and the second control box are switch boxes with a protection grade of IP65.

[0011] As a preferred solution, the grounding part of the traction motor under test is a mounting bolt or a grounding wire of the motor under test.

[0012] The beneficial effects of the present application are as follows: the line connection device of the present application can be directly connected to the traction motor speed signal line plug to be checked, and the speed signal line can be checked through the first switch and the first sound and light alarm in the second control box in cooperation with the line calibration inspection device, thereby avoiding the situation where the inspector is unable to accurately confirm the position of the traction motor speed signal line plug due to the installation position. At the same time, the line connection device and the line calibration inspection device are equipped with sound and light alarms, so that the operator can directly obtain the line inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a first structural schematic diagram of the line connection device of the utility model;

[0014] Figure 2 This is a second structural schematic diagram of the line connection device of the utility model;

[0015] Figure 3 This is a first structural schematic diagram of the line calibration inspection device of the utility model;

[0016] Figure 4 This is a first structural schematic diagram of the line calibration inspection device of the utility model;

[0017] Markings in the figure: 1. first crocodile clip, 2. first wire, 21. branch line, 3. first switch, 4. first sound and light alarm, 5. socket, 6. pin, 7. second wire, 8. second switch, 9. power supply, 10. second sound and light alarm, 11. second crocodile clip, 12. first control box, 13. second control box. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] See also Figure 1-4 The utility model embodiment provides a Harmony locomotive traction motor speed signal line inspection device, including a line connection device and a line calibration inspection device, the line connection device includes a first wire 2, a socket 5 for plugging into the traction motor speed signal line socket and a first crocodile clip 1 for clamping on the grounding part of the traction motor to be tested, one end of the first wire 2 is connected to the first crocodile clip 1, and the other end is divided into four branches 21 and connected to the socket 5, each branch 21 is provided with a first switch 3 and a first sound and light alarm 4; the line calibration inspection device includes a pin 6 and a second crocodile clip 11 connected to the pin 6 through a second wire 7, and the second wire 7 is provided with a second switch 8, a power supply 9 and a second sound and light alarm 10.

[0020] Among them, the socket 5 is a YGC-18P10RB electrical connector, the YGC-18P10RB electrical connector is circular, the grounding part of the traction motor under test is the mounting bolt or grounding wire of the motor under test, the first switch 3 and the second switch 8 are both boat-type switches, the second switch 8 is connected to the negative terminal of the power supply 9 through the second wire 7, and the positive terminal of the power supply 9 is connected to the second sound and light alarm 10 through the second wire 7. It should be noted that the parts not described in detail in this application are all prior art.

[0021] Specifically, the calibration inspection device also includes a first control box 12, and the second switch 8, power supply 9 and second sound and light alarm 10 are all arranged in the first control box 12. The first control box 12 is provided with a first wire entry hole and a first wire exit hole for the second wire 7 to enter and exit, so the line connection device also includes a second control box 13, and the first switch 3 and the first sound and light alarm 4 on each branch are both located in the second control box 13. The second control box 13 is provided with a second wire entry hole for the first wire 2 to enter and a second wire exit hole for the branch line 21 to exit.

[0022] In addition, the first control box 12 and the second control box 13 are switch boxes with a protection grade of IP65.

[0023] During use, an inspector unplugs the traction motor signal line plug that needs to be checked under the car, and plugs the socket 5 of the line connection device with the traction motor speed signal line plug under the car, and clamps the first crocodile clip 1 on the mounting bolt or grounding wire near the motor to be tested. Another inspector clamps the second crocodile clip 11 of the calibration inspection device on the grounding wire or mounting bolt near the converter plug at the converter plug in the locomotive to be tested. Then, after opening the calibration inspection device, use the pin to check the corresponding line according to the electrical schematic diagram of the Harmony locomotive. The specific inspection steps are: first, when the first switch 3 in the second control box 13 of the line connection device is disconnected, use the calibration inspection device to check the four lines of the converter plug to determine whether the four lines of the converter plug are grounded. Then, gradually close the four switches in the control box in the calibration inspection device, and use the calibration inspection device to check the on-off status of the lines one by one at the converter plug to determine whether the wiring of the four lines is correct and whether any two lines are short-circuited.

[0024] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.

Claims

1. A device for checking the speed signal line of the traction motor of a Harmony locomotive, characterized in that: The invention comprises a line connection device and a line calibration inspection device, wherein the line connection device comprises a first conductor (2), a socket (5) for being plugged into a plug of a traction motor speed signal line, and a first alligator clip (1) for being clamped on a grounding portion of a traction motor to be tested, wherein one end of the first conductor (2) is connected to the first alligator clip (1), and the other end is divided into four branch lines (21) and then connected to the socket (5), and each branch line (21) is provided with a first switch (3) and a first sound and light alarm (4); The line calibration inspection device comprises a pin (6) and a second alligator clip (11) connected to the pin (6) via a second wire (7); the second wire (7) is provided with a second switch (8), a power supply (9) and a second sound and light alarm (10).

2. The device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 1 is characterized in that: The first switch (3) and the second switch (8) are both boat-type switches.

3. A device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 2, characterized in that: The second switch (8) is connected to the negative terminal of the power source (9) via the second wire (7), and the positive terminal of the power source (9) is connected to the second sound and light alarm (10) via the second wire (7).

4. The device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 1 is characterized in that: The alignment inspection device further comprises a first control box (12), wherein the second switch (8), the power supply (9) and the second sound and light alarm (10) are all arranged in the first control box (12).

5. The device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 4 is characterized in that: Therefore, the line connection device also includes a second control box (13), and the first switch (3) and the first sound and light alarm (4) on each branch line are both located in the second control box (13).

6. A device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 5, characterized in that: The first control box (12) and the second control box (13) are both switch boxes with a protection grade of IP65.

7. The device for checking the speed signal line of the traction motor of a Harmony locomotive according to claim 1 is characterized in that: The grounding part of the traction motor under test is the mounting bolt or grounding wire of the motor under test.

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