CN210665797U - Portable detection device for speed sensor of CRH3 motor train unit - Google Patents
Portable detection device for speed sensor of CRH3 motor train unit Download PDFInfo
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- CN210665797U CN210665797U CN201921991931.7U CN201921991931U CN210665797U CN 210665797 U CN210665797 U CN 210665797U CN 201921991931 U CN201921991931 U CN 201921991931U CN 210665797 U CN210665797 U CN 210665797U
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Abstract
The utility model discloses a portable detection device of CRH3 type EMUs speedtransmitter, this detection device include shell, operation area, speed simulator, power control module, measurement control module, man-machine interaction module, can not insert under EMUs braking control unit BCU's the condition at this type speedtransmitter to most audio-visual speed feedback value and insulation resistance make quick, accurate judgement to CRH3 type EMUs speedtransmitter's performance quality.
Description
Technical Field
The technical scheme mainly relates to the technical related field of the motor train unit, in particular to the field of advanced maintenance operation of the motor train unit.
Background
Each axle of the CRH3 motor train unit is provided with a speed sensor for monitoring the real-time running speed of the wheel set and transmitting a speed signal to the brake control unit BCU and the traction control unit TCU, thereby providing important reference for normal running or emergency braking of the train. In the prior art, due to the fact that no special detection equipment for the performance of the speed sensor is available, all motor train unit overhaul stations are generally in an advanced overhaul stage, the speed sensors of the whole motor train unit are disassembled, cleaning and appearance state inspection are carried out, after unqualified sensors with obvious mechanical damage are eliminated, loading is continued for use, in a subsequent ex-warehouse dynamic debugging stage, and whether feedback signals of the speed sensors are normal or not is monitored through BCU software. The overhaul process can only judge the sensor with obvious structural damage on the surface, can not find and investigate deep hidden faults such as internal circuits, insulating property, induction precision and the like of the sensor in time, and potential fault parts continue to be used by loading and run on line, so that the motor train unit is abnormally braked emergently and can not run normally due to abnormal signals of the speed sensor. Therefore, an efficient and portable detection device is determined and researched, the omnibearing detection of the performance of the speed sensor before loading and using is realized, the overhauling quality of the motor train unit is improved, and the running safety of the motor train unit is guaranteed.
Disclosure of Invention
The utility model provides a portable detection device of speedtransmitter, this detection device can detect CRH3 type EMUs speedtransmitter's response precision, insulating properties, detect fast, comprehensive, accurate.
The portable detection device for the speed sensor of the CRH3 motor train unit comprises a device shell, an operation area, a speed simulation area, a power supply module, a measurement control module and a man-machine interaction module;
an operation area: the portable interface is used for controlling the installation distribution of the button group, the indicator light and the portable interface;
a speed simulation area: the speed sensor is used for simultaneously providing analog speed for a CRH3 motor train unit speed sensor to be detected and a reference speed sensor;
a power supply module: the detection device is used for providing a direct current power supply for the whole detection device;
a measurement control module: the system is used for controlling the speed signal acquisition, the operation processing and the insulation resistance value measurement of the detection equipment and communicating with the man-machine interaction module;
a human-computer interaction module: the device is used for receiving and visually displaying the data of the measurement control module, and sending an operation instruction to the measurement control module to realize an interaction function.
The portable detection device for the speed sensor of the CRH3 motor train unit is characterized in that the most intuitive speed feedback value and insulation resistance value can be used for quickly and accurately judging the performance of the speed sensor of the CRH3 motor train unit on the premise of not connecting the speed sensor of the CRH3 motor train unit into a brake control unit of the motor train unit.
The operating area comprises a power switch button, a state indicator lamp, a starting test button, a rotating speed adjusting knob, a speed acquisition port, an 8-pin Harting aviation plug female pin socket, a first insulation resistance value test interface and a second insulation resistance value test interface; wherein the power switch button is used for controlling the on-off of a circuit between the power module and the measurement control module, the state indicator lamp is used for indicating the current state of the detection device, the lamp is turned off as equipment, the lamp is normally turned on as the equipment is started, the lamp flickers as the detection is in progress, the rotating speed adjusting knob is connected with the speed simulation area, the speed acquisition port is used for accessing a CRH3 motor train unit speed sensor probe to be detected, an 8-pin Harting aviation plug female pin socket, the testing device is used for being connected into an 8-pin Harting aviation plug pin plug of a CRH3 motor train unit speed sensor to be detected, one end of an insulation resistance testing interface is connected with a measurement control module, the other end of the insulation resistance testing interface is connected with a copper shell of the CRH3 motor train unit speed sensor to be detected through an electric power cable, one end of the insulation resistance testing interface is connected with the measurement control module, and the other end of the insulation resistance testing interface is connected with a shielding layer of the CRH3 motor train unit speed sensor to be detected through the electric power cable.
The speed simulation area is provided with two speed acquisition ports and comprises a direct current motor, a direct current motor stepless speed regulation circuit and an involute speed measurement gear, wherein the direct current motor stepless speed regulation circuit is controlled by a rotating speed regulation knob to control the rotating speed of the direct current motor, the direct current motor drives the speed measurement gear to rotate, when a CRH3 type motor train unit speed sensor probe to be detected approaches, the direct current motor rapidly cuts a magnetic field, and a pulse signal is sent to a measurement control module through a power cable in an 8-pin Harting aviation plug female pin socket.
The power module comprises a first storage battery and a second storage battery of DC12V, wherein the first storage battery is specially used for supplying power for the direct current motor, the second storage battery is used for supplying power for the measurement control module and the man-machine interaction module, two groups of storage batteries share one charging port, and the connection and separation of the two groups of storage batteries are controlled by the measurement control circuit.
The measurement control module comprises an STM32 single chip microcomputer, an integrated circuit, an insulation measuring device and a reference speed sensor, wherein the STM32 single chip microcomputer is used for controlling the input and the output of the power module, a DC12V working power supply is provided for a CRH3 motor train unit speed sensor to be detected through an 8-pin Harting aerial plug cable, a pulse analog signal from the CRH3 motor train unit speed sensor to be detected is received through the 8-pin Harting aerial plug cable, the integrated circuit is used for installing a relay and a resistance component required by measurement control, the insulation measuring device is provided with an RS232 communication function and is connected with a first insulation resistance value testing interface, a second insulation resistance value testing interface and an 8-pin Harting aerial plug pin socket, and under the control of the integrated circuit, three groups of insulation values of a contact pin-copper shell, a contact pin-shielding layer and a copper shell-shielding layer of the speed sensor to be detected are respectively measured, the reference speed sensor magnetic induction probe is arranged at a speed acquisition port and used for acquiring a pulse analog signal of a speed measurement gear and transmitting the pulse analog signal to the STM32 single chip microcomputer.
The STM32 single chip microcomputer is used for converting pulse analog signals from a CRH3 motor train unit speed sensor to be detected into speed feedback values
Converting the pulse analog signal from the reference speed sensor into a speed feedback value
And controlling the function switching of the insulation measuring device through the RS232 connecting wire, and reading the measured resistance value of the insulation measuring device.
The man-machine interaction module is used for receiving and displaying a speed feedback value of a speed sensor to be detected from an STM32 single chip microcomputer
Reference speed sensor speed feedback value
Deviation ratio
And three groups of insulation resistance values from the insulation measuring device are displayed, the residual electric quantity of the power supply module is displayed, and meanwhile, an operation instruction is sent to the STM32 single chip microcomputer through a human-computer interaction module control interface.
Advantageous effects
1. The performance of the CRH3 motor train unit speed sensor can be quickly and accurately judged according to the most intuitive speed feedback value and insulation resistance value without using a motor train unit brake control unit;
2. the test working conditions of the reference speed sensor and the speed sensor to be detected are completely consistent, and the overall precision of the detection device can be ensured only by regularly checking the detection precision of the reference speed sensor;
3. the system has a good man-machine interaction interface, and is convenient for operators to operate;
4. the equipment is light, portable and strong in adaptability, and related equipment facilities are strong in universality by adopting standardized design.
Drawings
Fig. 1 shows the overall structure of a portable detection device of a speed sensor of a CRH3 motor train unit.
Fig. 2 shows the internal structure of a portable detection device of a speed sensor of a CRH3 motor train unit.
Fig. 3 is a connection topological diagram of a portable detection device module of a speed sensor of a CRH3 motor train unit.
Detailed Description
In one embodiment, the portable detection device for the speed sensor of the CRH3 motor train unit comprises a device shell 100, an operation area 200, a speed simulation area 400, a power supply module, a measurement control module and a man-machine interaction module 700, wherein the operation area 200 is used for controlling the installation distribution of a button group, an indicator light and a portable interface; the speed simulation area 400 is used for simultaneously providing simulation speeds for the CRH3 motor train unit speed sensor 300 and the reference speed sensor 630 to be detected; the power supply module is used for providing a direct current power supply for the whole detection device; the measurement control module is used for controlling the speed signal acquisition, the operation processing and the insulation resistance value measurement of the detection equipment and communicating with the human-computer interaction module 700; the human-computer interaction module 700 is used for receiving and visually displaying data of the measurement control module, and sending an operation instruction to the measurement control module to realize an interaction function.
In one embodiment, the operation area 200 includes a power switch button 210, a status indicator light 211, a start test button 212, a rotation speed adjusting knob 213, a speed collecting port 230, an 8-pin Harting aviation pin socket 231, a first insulation resistance value test interface 220, and a second insulation resistance value test interface 221; the power switch button 210 is used for controlling the on-off of a circuit between the power module and the measurement control module, the state indicator lamp 211 is used for indicating the current state of the detection device, the lamp is turned off, the lamp is turned on normally, the equipment is started, and the lamp flickers, so that the detection is in progress; the rotating speed adjusting knob 213 is connected with the speed simulation area 400 and is used for controlling the speed simulation quantity of the detection device; the speed acquisition port 230 is used for accessing a probe 301 of a CRH3 motor train unit speed sensor 300 to be detected; the 8-pin Harting aviation plug female pin socket 231 is used for being connected with an 8-pin Harting aviation plug male pin 302 of a CRH3 motor train unit speed sensor 300 to be detected; one end of the insulation resistance value test interface 220 is connected with the measurement control module, and the other end of the insulation resistance value test interface is connected with a copper shell 303 of a CRH3 motor train unit speed sensor 300 to be detected through a power cable; one end of the insulation resistance value test interface 221 is connected with the measurement control module, and the other end of the insulation resistance value test interface is connected with the shielding layer 304 of the CRH3 motor train unit speed sensor 300 to be detected through the power cable.
In one embodiment, the speed simulation area 400 is provided with a reference speed acquisition port 404, which includes a dc motor 401, a dc motor stepless speed regulation circuit 402, and an involute speed measurement gear 403, wherein the dc motor stepless speed regulation circuit 402 is controlled by a rotation speed adjustment knob 213 to control the rotation speed of the dc motor 401; the direct current motor 401 drives the speed measuring gear to rotate, when the probe 301 of the speed sensor of the CRH3 motor train unit to be detected approaches, the speed measuring gear rapidly cuts a magnetic field, and a pulse signal is sent to the measuring and controlling module through an electric power cable in the 8-pin Harting aviation plug female pin socket 231.
In one embodiment, the power module is composed of a first storage battery 501 and a second storage battery 502 of the DC12V, wherein the first storage battery 501 is used for supplying power to the DC motor 401, the second storage battery 502 is used for supplying power to the measurement control module and the human-computer interaction module, the two storage batteries share a charging port 503, and the connection and separation of the two storage batteries are controlled by the measurement control circuit.
In one embodiment, the measurement control module comprises an STM32 single chip microcomputer 611, an integrated circuit 612, a set of insulation measurement device 620 and a reference speed sensor 630, wherein the STM32 single chip microcomputer 611 is used for controlling input and output of a power module, a DC12V working power supply is provided for the CRH3 motor train unit speed sensor 300 to be detected through an 8-pin Harting aerial plug cable 233, and a pulse analog signal from the CRH3 motor train unit speed sensor to be detected is received through the 8-pin Harting aerial plug cable 233; the integrated circuit 612 is used for installing relays and resistance components required by measurement control; the insulation measuring device 620 has an RS232 communication function, is connected with the first insulation resistance value testing interface 220, the second insulation resistance value testing interface 221 and the 8-pin Harting aviation plug female pin socket 231, respectively measures three insulation values of a pin-copper shell 303, a pin-shielding layer 304 and a copper shell-shielding layer of a speed sensor to be detected under the control of the integrated circuit 612, and a magnetic induction probe 631 of a reference speed sensor 630 is installed at the reference speed acquisition port 404 and used for acquiring pulse analog signals of the speed measurement gear 403 and transmitting the pulse analog signals to the STM32 single chip microcomputer 611.
In one embodiment, the STM32 single chip microcomputer 611 is used for converting pulse analog signals from the speed sensor 300 of the CRH3 motor train unit to be detected into speed feedback values
The pulse analog signal from the reference speed sensor 630 is converted into a speed feedback value
And controlling the function switching of the insulation measuring device 620 through the RS232 connecting line, and reading the resistance value measured by the insulation measuring device 620.
In one embodiment, the human-computer interaction module 700 is used for receiving and displaying the speed feedback value of the speed sensor 300 to be detected from the STM32 single chip microcomputer 611
Reference speed sensor 630 speed feedback value
Deviation ratio
Display from insulation measuring deviceAnd the three groups of insulation resistance values of the 620 are set to display the residual electric quantity of the power supply module, and meanwhile, an operation instruction is sent to the STM32 single chip microcomputer 611 through a human-computer interaction module control interface.
In one embodiment, the probe 301 of the CRH3 type motor train unit speed sensor to be detected is inserted into the speed acquisition port 230, the 8-pin Harting aviation male pin plug 302 of the CRH3 type motor train unit speed sensor to be detected is inserted into the 8-pin Harting aviation female pin socket of the detection device, the power cable of the insulation resistance test interface 220 is connected with the copper shell 303 of the CRH3 type motor train unit speed sensor to be detected, the power cable of the insulation resistance test interface 221 is connected with the shielding layer 304 of the CRH3 type motor train unit speed sensor to be detected, the detection device is started by pressing the power switch button 210, the rotating speed adjusting knob 213 is rotated clockwise, the simulated rotating speed can be provided for the CRH3 type motor train unit speed sensor 300 to be detected, the test button 212 is started by pressing, the state indicator lamp 211 is changed from flickering to normally bright, and the pin-copper shell 303, the pin-copper shell 303 and the status indicator lamp 211 of the CRH3 type motor train, Three groups of insulation values of the contact pin-shielding layer 304 and the copper shell-shielding layer, and a speed feedback value of the CRH3 motor train unit speed sensor 300 to be detected
Reference speed sensor 630 speed feedback value
And deviation ratio
And further judging whether the performance of the CRH3 motor train unit speed sensor 300 to be detected is qualified or not according to the detection parameter values.
Claims (6)
- The portable detection device for the speed sensor of the CRH3 type motor train unit is characterized by comprising a device shell (100), an operation area (200), a speed simulation area (400), a power supply module, a measurement control module and a man-machine interaction module (700);operating zone (200): the portable detection device is used for controlling the installation distribution of the button group, the indicator light and the portable detection interface;velocity simulation zone (400): the speed sensor is used for simultaneously providing simulated speeds for a CRH3 motor train unit speed sensor (300) to be detected and a reference speed sensor (630);a power supply module: the detection device is used for providing a direct current power supply for the whole detection device;a measurement control module: the device is used for controlling the speed signal acquisition, the operation processing and the insulation resistance value measurement of the detection equipment and communicating with a man-machine interaction module (700);human-computer interaction module (700): the device is used for receiving and visually displaying the data of the measurement control module, and sending an operation instruction to the measurement control module to realize an interaction function.
- 2. The portable speed sensor detection device for CRH3 EMUs according to claim 1, wherein the operation area (200) comprises a power switch button (210), a status indicator light (211), a start test button (212), a rotation speed adjusting knob (213), a speed acquisition port (230), an 8-pin Harting aviation plug pin socket (231), a first insulation resistance value test interface (220), and a second insulation resistance value test interface (221); the power switch button (210) is used for controlling the on-off of a circuit between the power module and the measurement control module, the state indicator lamp (211) is used for indicating the current state of the detection device, the lamp is turned off and is turned off, the lamp is normally turned on and is started, and the lamp flickers and is detected in progress; the rotating speed adjusting knob (213) is connected with the speed simulation area (400) and is used for controlling the speed simulation quantity of the detection device; the speed acquisition port (230) is used for accessing a probe (301) of a CRH3 motor train unit speed sensor (300) to be detected; the 8-pin Harting aviation plug female pin socket (231) is used for being connected with an 8-pin Harting aviation plug male pin plug (302) of a CRH3 motor train unit speed sensor (300) to be detected; one end of the first insulation resistance value test interface (220) is connected with the measurement control module, and the other end of the first insulation resistance value test interface is connected with a copper shell (303) of a CRH3 motor train unit speed sensor (300) to be detected through a power cable; one end of the second insulation resistance value test interface (221) is connected with the measurement control module, and the other end of the second insulation resistance value test interface is connected with a shielding layer (304) of a CRH3 motor train unit speed sensor (300) to be detected through a power cable.
- 3. The portable detection device for the speed sensor of the CRH3 motor train unit according to claim 1, wherein the speed simulation area (400) is provided with a reference speed acquisition port (404) comprising a DC motor (401), a DC motor stepless speed regulation circuit (402) and an involute speed measurement gear (403), wherein the DC motor stepless speed regulation circuit (402) is controlled by a rotating speed regulation knob (213) to control the rotating speed of the DC motor (401); the direct current motor (401) drives the speed measuring gear to rotate, and when a probe (301) of a speed sensor (300) of the CRH3 motor train unit to be detected approaches the speed measuring gear, the speed measuring gear rapidly cuts a magnetic field and sends a pulse signal to the measuring and controlling module through an electric cable in the 8-pin Harting aviation plug female pin socket (231).
- 4. The portable speed sensor device for CRH3 EMUs according to claim 1, wherein the power module comprises a first battery (501) and a second battery (502) of DC12V, the first battery (501) is used for supplying power to the DC motor (401), the second battery (502) is used for supplying power to the measurement control module and the human-computer interaction module (700), the two batteries share a charging port (503), and the on and off of the two batteries are controlled by the measurement control circuit.
- 5. The portable detection device for the speed sensor of the CRH3 motor train unit according to claim 1, wherein the measurement control module comprises an STM32 single chip microcomputer (611), an integrated circuit (612), an insulation measurement device (620) and a reference speed sensor (630), wherein the STM32 single chip microcomputer (611) is used for controlling input and output of the power module, the DC12V working power supply is provided for the speed sensor (300) of the CRH3 motor train unit to be detected through an 8-pin Harting aerial plug cable (233), and the pulse analog signal from the speed sensor (300) of the CRH3 motor train unit to be detected is received through the 8-pin Harting aerial plug cable (233); the integrated circuit (612) is used for installing relays and resistance components required by measurement control; insulation measuring device (620) area RS232 communication function, with first insulation resistance test interface (220) and second insulation resistance test interface (221), 8 needle Harting aviation plug female needle socket (231) are connected, under integrated circuit (612) control, measure respectively and wait to detect speed sensor contact pin-copper casing (303), contact pin-shielding layer (304), three insulation value of copper casing-shielding layer, benchmark speed sensor (630) magnetic induction probe (631) are installed in benchmark speed acquisition port (404), be used for gathering the pulse analog signal of gear (403) that tests the speed and transmit to STM32 singlechip (611).
- 6. The portable detection device for the speed sensor of the CRH3 motor train unit according to claim 5, wherein the STM32 single chip microcomputer (611) is used for calculating a speed feedback value of the speed sensor (300) of the CRH3 motor train unit to be detected and a speed feedback value of the reference speed sensor (630), controlling the insulation measurement device (620) through an RS232 connecting line and reading the resistance value measured by the insulation measurement device (620).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991931.7U CN210665797U (en) | 2019-11-18 | 2019-11-18 | Portable detection device for speed sensor of CRH3 motor train unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991931.7U CN210665797U (en) | 2019-11-18 | 2019-11-18 | Portable detection device for speed sensor of CRH3 motor train unit |
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| CN210665797U true CN210665797U (en) | 2020-06-02 |
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| CN201921991931.7U Active CN210665797U (en) | 2019-11-18 | 2019-11-18 | Portable detection device for speed sensor of CRH3 motor train unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710871A (en) * | 2021-01-08 | 2021-04-27 | 中车青岛四方机车车辆股份有限公司 | Test method and device for positioning speed measurement system host |
| CN112881757A (en) * | 2021-01-12 | 2021-06-01 | 山西润泽丰科技股份有限公司 | Testing device and method for CRH3 motor train unit speed sensor |
-
2019
- 2019-11-18 CN CN201921991931.7U patent/CN210665797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710871A (en) * | 2021-01-08 | 2021-04-27 | 中车青岛四方机车车辆股份有限公司 | Test method and device for positioning speed measurement system host |
| CN112881757A (en) * | 2021-01-12 | 2021-06-01 | 山西润泽丰科技股份有限公司 | Testing device and method for CRH3 motor train unit speed sensor |
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