CN219891568U - TCU test bed of electric locomotive - Google Patents
TCU test bed of electric locomotive Download PDFInfo
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- CN219891568U CN219891568U CN202320223311.9U CN202320223311U CN219891568U CN 219891568 U CN219891568 U CN 219891568U CN 202320223311 U CN202320223311 U CN 202320223311U CN 219891568 U CN219891568 U CN 219891568U
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 76
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 102
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of test beds, and provides a test bed of a TCU (thyristor controlled unit) of an electric locomotive, which comprises a test bed and a fixing mechanism, wherein a power supply detection module, a digital quantity signal detection module, an analog quantity signal detection module, a feedback signal detection module and a communication detection module are arranged in the test bed, the test bed is also connected with a connector, and the power supply detection module, the digital quantity signal detection module, the analog quantity signal detection module, the feedback signal detection module and the communication detection module are respectively connected with the connector, the connector is used for connecting the TCU of the electric locomotive, and the fixing mechanism is used for fixing the TCU of the electric locomotive. The utility model solves the problem that the detection of each component of the TCU of the locomotive can only be tested on the locomotive by using the original device, which brings great difficulty to the fault maintenance.
Description
Technical Field
The utility model belongs to the technical field of test stands, and particularly relates to a test stand of a TCU (thyristor controlled unit) of an electric locomotive.
Background
The electric locomotive, also called electric locomotive, HXD2 electric locomotive has been put into use in the railway department for many years, detection, overhaul and maintenance of the TCU of HXD2 electric locomotive are also gradually brought into daily work of each railway office and locomotive service section, special ground detection equipment is required to be equipped in the field operation, and whether each function and technical parameter of the TCU meet the requirements of the ministry of technical conditions or not. Aiming at the detection, overhaul and maintenance requirements of HXD2 electric locomotive microcomputer network control in the field operation process of each railway bureau and locomotive engineering section, a TCU test bed of the HXD2 electric locomotive is developed. The on-site inspection of various functions and technical parameters of the TCU is carried out on the overhauling site, and the method has great significance for improving the reliability of the TCU in the running process.
At present, detection equipment for a locomotive TCU is lacking, and the maintenance condition of a fault part cannot be known. The detection of the components of the TCU can only be tested on board the locomotive using the original equipment, which presents great difficulties in fault maintenance.
To this end, we provide a test stand for the TCU of an electric locomotive.
Disclosure of Invention
The utility model provides a test bed of a TCU of an electric locomotive, which aims to solve the problem that the detection of all parts of the TCU of the locomotive at present can only be tested on the locomotive by using an original device, and the problem of great difficulty in fault maintenance is caused.
The utility model discloses a test bed of a TCU of an electric locomotive, which comprises a test bed and a fixing mechanism, wherein a power supply detection module, a digital quantity signal detection module, an analog quantity signal detection module, a feedback signal detection module and a communication detection module are arranged in the test bed, the test bed is also connected with a connector, and the power supply detection module, the digital quantity signal detection module, the analog quantity signal detection module, the feedback signal detection module and the communication detection module are respectively connected with the connector, the connector is used for connecting the TCU of the electric locomotive, and the fixing mechanism is used for fixing the TCU of the electric locomotive.
Optionally, the fixing mechanism includes: the device comprises a transmission box body, two bidirectional screws, guide rods, two connecting rods and two fixing plates, wherein the transmission box body is arranged on the upper surface of a test bed, the guide rods are fixedly arranged in the transmission box body, the two bidirectional screws are rotatably arranged in the transmission box body, the two connecting rods are respectively in sliding connection with the guide rods, the two bidirectional screws penetrate through the two connecting rods and are in threaded connection with the two connecting rods, two sliding grooves are formed in the upper surface of the transmission box body, and the lower sides of the two fixing plates respectively penetrate through the sliding grooves and are respectively connected with the two connecting rods.
Optionally, a display panel is further arranged on the test stand.
Optionally, the power supply detection module is an electronic load instrument.
Optionally, the digital quantity signal detection module is configured to detect the identification capability of the digital quantity input channel of the TCU of the electric locomotive for different input voltages.
Optionally, the analog quantity signal detection module is used for detecting an analog quantity output signal of the TCU of the electric locomotive. For this purpose, it requires an external programmable power supply and a constant value resistor as detection means.
Optionally, the signal detection module is configured to detect an input signal of a TCU of the electric locomotive.
Optionally, the communication detection module is configured to detect an MVB communication module of a TCU of the electric locomotive.
The TCU fixing device has the beneficial effects that the TCU of the motor locomotive is fixed by using the fixing mechanism, so that the TCU of the electric locomotive is prevented from being damaged due to falling under the action of external force. And then connecting the connector to the TCU of the electric locomotive, and detecting the TCU of the electric locomotive. The power supply detection module, the digital quantity signal detection module, the analog quantity signal detection module, the feedback signal detection module and the communication detection module respectively detect various functions and technical parameters of the TCU of the motor locomotive. The test is carried out without loading on the locomotive, and the problem that the existing test on each component of the locomotive TCU can only be carried out on the locomotive by using the original device, which brings great difficulty to fault maintenance is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a test stand of a TCU of an electric locomotive provided by the utility model;
FIG. 2 is a schematic diagram of a cross-sectional top view of a drive box of a test stand of a TCU of an electric locomotive according to the present utility model;
FIG. 3 is a schematic diagram of the connection structure of the guide rod, the connecting rod and the fixing plate of the test bed of the TCU of the electric locomotive;
FIG. 4 is a block diagram of the internal structure of a test stand of a TCU of an electric locomotive provided by the utility model;
FIG. 5 is a schematic diagram of the digital quantity signal detection module of the test bed of the TCU of the electric locomotive provided by the utility model;
FIG. 6 is a schematic diagram of the analog signal detection module of the test bed of the TCU of the electric locomotive provided by the utility model;
FIG. 7 is a schematic diagram of the signal detection module of the test bed of the TCU of the electric locomotive according to the present utility model;
FIG. 8 is a schematic diagram of the operation of a feedback signal detection module of a test stand of a TCU of an electric locomotive provided by the utility model;
fig. 9 is a schematic diagram of a communication detection module of a test stand of a TCU of an electric locomotive according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
The terms "first" and "second" and the like in this disclosure are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps, operations, components, or modules is not limited to the particular steps, operations, components, or modules listed but may optionally include additional steps, operations, components, or modules inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
As shown in fig. 1 to 9, a test stand for a TCU of an electric locomotive according to an exemplary embodiment includes a test stand 1 and a fixing mechanism 2, wherein a power supply detection module 11, a digital signal detection module 12, an analog signal detection module 13, a signal detection module 14, a feedback signal detection module 15, and a communication detection module 16 are disposed in the test stand 1, the test stand 1 is further connected with a connector 17, the power supply detection module 11, the digital signal detection module 12, the analog signal detection module 13, the signal detection module 14, the feedback signal detection module 15, and the communication detection module 16 are respectively connected with the connector 17, the connector 17 is used for connecting a TCU (remote information control unit) of the electric locomotive, and the fixing mechanism 2 is used for fixing the TCU of the electric locomotive. Referring to fig. 8, the feedback signal is conventionally a voltage signal, and the detection of the feedback signal is tested for two situations, i.e., no voltage input and normal voltage input. Specifically, the TCU of the motor locomotive is fixed by the fixing mechanism 2, so that the TCU of the electric locomotive is prevented from being damaged due to falling under the action of external force. The connector 17 is then connected to the TCU of the electric locomotive and the TCU of the electric locomotive is checked. The power supply detection module 11, the digital quantity signal detection module 12, the analog quantity signal detection module 13, the signal detection module 14, the feedback signal detection module 15 and the communication detection module 16 respectively detect various functions and technical parameters of the TCU of the motor locomotive. The test is carried out without loading on the locomotive, and the problem that the existing test on each component of the locomotive TCU can only be carried out on the locomotive by using the original device is solved, so that great difficulty is brought to fault maintenance.
As an example, the fixing mechanism 2 includes: the test bench comprises a transmission box body 21, a bidirectional screw rod 22, a guide rod 23, two connecting rods 24 and two fixing plates 25, wherein the transmission box body 21 is arranged on the upper surface of the test bench 1, the guide rod 23 is fixedly installed in the transmission box body 21, the bidirectional screw rod 22 is rotatably installed in the transmission box body 21, and one end of the bidirectional screw rod 22 penetrates through the transmission box body 21. The two connecting rods 24 are respectively connected with the guide rods 23 in a sliding manner, the two-way screw rods 22 penetrate through the two connecting rods 24 and are in threaded connection with the two connecting rods 24, two sliding grooves 26 are formed in the upper surface of the transmission box body 21, and the lower sides of the two fixing plates 25 respectively penetrate through the sliding grooves 26 and are respectively connected with the two connecting rods 24. Specifically, place the TCU of electric locomotive between two fixed plates 25, rotate two-way screw rod 22 afterwards, two fixed plates 25 are kept away from each other or are close to each other through connecting rod 24 is driven in the rotation of two-way screw rod 22, adjusts two fixed plates 25 and is close to each other, fixes the TCU of electric locomotive, avoids the TCU of electric locomotive to receive the exogenic action to drop and cause the damage. The connector 17 is then connected to the TCU of the electric locomotive and the TCU of the electric locomotive is checked.
As an example, the test stand 1 is further provided with a display panel 18, and the display panel 18 is used for displaying various detection data of the TCU. Specifically, the display panel 18 is an existing display, and the display is respectively connected with the power detection module 11, the digital signal detection module 12, the analog signal detection module 13, the signal detection module 14, the feedback signal detection module 15 and the communication detection module 16 through an existing processor (not shown in the figure), and the power detection module 11, the digital signal detection module 12, the analog signal detection module 13, the signal detection module 14, the feedback signal detection module 15 and the communication detection module 16 are connected to transmit detection data to the processor, and after the processor performs data processing, the detection data is transmitted to the display panel 18 for data display.
As an example, the power supply detection module 11 is an electronic load meter, which is an existing electronic device. The direct current electronic load instrument is designed and manufactured by taking an ATmega16 controller with an enhanced AVRRISC structure as a core. The system generates a wave of about 20kHz to control the MOSFET to work by comparing the sawtooth wave and the current sampling signal generated by the ramp wave generator with the error signal of the control signal, and then forms a closed-loop negative feedback control loop through PI regulation of the error amplifier to realize constant current. The constant resistance and constant voltage modes are realized by regulating the current flowing through the MOS tube circuit in real time through software. The utility model uses the electronic load instrument to detect the power supply, wherein the detection of the power supply by the electronic load instrument is a common technical means in the field, and detailed description is omitted here.
As an example, the digital quantity signal detection module 12 is configured to detect the identification capabilities of the digital quantity input channels of the TCU of the electric locomotive for different input voltages. Specifically, referring to fig. 5, the voltage of the digital input channel is in the conventional range of DC77V-137.5V, and the external instrument required for detection is a programmable power supply. In order to more comprehensively detect the digital quantity input channels, digital quantity input signals under the conditions of 0V, DC, 22V, DC, 77 and V, DC V are detected respectively, and the identification capability of the digital quantity input channels to different input voltages is detected.
As an example, the analog signal detection module 13 is configured to detect an analog output signal of the TCU of the electric locomotive. For this purpose, it requires an external programmable power supply and a constant value resistor as detection means. Specifically, referring to fig. 6, the analog output signal is conventionally a voltage signal (constant voltage), and the external apparatus required for detection is an electronic load. And detecting an analog output signal by reading the voltage value of the universal meter.
As an example, the signal detection module 14 is configured to detect an input signal of a TCU of the electric locomotive. Specifically, referring to fig. 7, an external instrument required for detecting an input signal is a signal generator. Waveforms with different duty ratios are output through the signal generator, and input signals are sequentially detected.
As an example, the communication detection module 16 is configured as an MVB communication module that detects the TCU of the electric locomotive. Specifically, referring to fig. 9, MVB communication detection requires testing of the resistance value and communication function of a termination resistor, and the required external instruments are a multimeter and an MVB communication board card. The multimeter detects terminal resistance value, and MVB communication board card communicates with the module to be tested.
The exemplary embodiments of the present utility model may be combined with each other, and exemplary embodiments obtained by combining also fall within the scope of the present utility model.
The principles and embodiments of the present utility model have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (6)
1. The utility model provides a test bench of TCU of electric locomotive, its characterized in that, including test bench (1) and fixed establishment (2), the inside of test bench (1) is provided with power detection module (11), digital quantity signal detection module (12), analog quantity signal detection module (13), signal detection module (14), feedback signal detection module (15) and communication detection module (16), test bench (1) still is connected with connector (17), power detection module (11) digital quantity signal detection module (12) analog quantity signal detection module (13) signal detection module (14) feedback signal detection module (15) with communication detection module (16) respectively with connector (17) are connected, connector (17) are used for connecting the TCU of electric locomotive, fixed establishment (2) are used for fixing the TCU of electric locomotive.
2. Test stand for a TCU of an electric locomotive according to claim 1, characterized in that the fixing mechanism (2) comprises: the device comprises a transmission box body (21), two bidirectional screw rods (22), guide rods (23), two connecting rods (24) and two fixing plates (25), wherein the transmission box body (21) is arranged on the upper surface of a test bench (1), the guide rods (23) are fixedly installed in the transmission box body (21), the two bidirectional screw rods (22) are rotatably installed in the transmission box body (21), the two connecting rods (24) are respectively in sliding connection with the guide rods (23), the two bidirectional screw rods (22) penetrate through the two connecting rods (24) and are in threaded connection with the two connecting rods (24), two sliding grooves (26) are formed in the upper surface of the transmission box body (21), and the lower sides of the two fixing plates (25) penetrate through the sliding grooves (26) respectively and are respectively connected with the two connecting rods (24).
3. Test stand for a TCU of an electric locomotive according to claim 1, characterized in that the test stand (1) is further provided with a display panel (18).
4. Test stand for a TCU of an electric locomotive according to claim 1, characterized in that the power supply detection module (11) is an electronic load cell.
5. The test stand of a TCU of an electric locomotive according to claim 1, wherein the signal detection module (14) is configured to detect an input signal of the TCU of the electric locomotive.
6. The test stand of a TCU of an electric locomotive according to claim 1, wherein the communication detection module (16) is configured to detect an MVB communication module of the TCU of the electric locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320223311.9U CN219891568U (en) | 2023-02-15 | 2023-02-15 | TCU test bed of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320223311.9U CN219891568U (en) | 2023-02-15 | 2023-02-15 | TCU test bed of electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219891568U true CN219891568U (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320223311.9U Active CN219891568U (en) | 2023-02-15 | 2023-02-15 | TCU test bed of electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219891568U (en) |
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2023
- 2023-02-15 CN CN202320223311.9U patent/CN219891568U/en active Active
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Inventor after: Dou Guangxu Inventor after: Zhang Yiyang Inventor after: Zheng Yan Inventor after: Xue Zhibo Inventor after: Zhang Xianchun Inventor after: Wang Kunhe Inventor after: Tang Xianbo Inventor after: Wang Guangyuan Inventor after: Wang Yonghao Inventor after: Yu Hao Inventor after: Xu Zaichi Inventor after: Wang Tiecheng Inventor after: Yang Runqi Inventor after: Wen Xiaokun Inventor after: Dong Kaikai Inventor after: Li Yongfeng Inventor after: Zhang Yiwei Inventor after: Wang Zheng Inventor after: Han Jialin Inventor after: Lv Dianliang Inventor after: Wang Zibin Inventor after: Wang Jian Inventor after: Hu Pengcheng Inventor after: Zou Shitao Inventor after: Gao Xuan Inventor after: Zhang Miao Inventor before: Dou Guangxu Inventor before: Zhang Yiyang Inventor before: Zheng Yan Inventor before: Xue Zhibo Inventor before: Zhang Xianchun Inventor before: Wang Kunhe Inventor before: Tang Xianbo Inventor before: Wang Guangyuan Inventor before: Wang Yonghao Inventor before: Yu Hao Inventor before: Xu Zaichi Inventor before: Wang Tiecheng Inventor before: Yang Runqi Inventor before: Wen Xiaokun Inventor before: Dong Kaikai Inventor before: Li Yongfeng Inventor before: Zhang Yiwei Inventor before: Wang Zheng Inventor before: Han Jialin Inventor before: Lv Dianliang Inventor before: Wang Zibin Inventor before: Wang Jian Inventor before: Hu Pengcheng Inventor before: Zou Shitao Inventor before: Gao Xuan Inventor before: Zhang Miao |