Contact uniformity testing device suitable for railway signal relay

Abstract

The utility model relates to a railway signal relay contact uniformity testing device, which is characterized by comprising a uniformity testing control unit (1), a human-computer interaction interface, a railway signal relay socket (5), a displacement sensor (6), a code scanning gun (7) and an operation table (8), wherein the human-computer interaction interface comprises an industrial screen and button (2) and a uniformity indication lamp (3); a displacement sensor (6), a tested relay (4), a railway signal relay socket (5) and a uniformity test control unit (1) are sequentially arranged on the operating platform (8) from left to right; the industrial screen and button (2) and the uniformity indication lamp (3) are arranged in front of and behind the uniformity test control unit (1); the code scanning gun (7) is electrically connected with the uniformity test control unit (1) through an interface; according to the contact uniformity testing device suitable for the railway signal relay, the contact uniformity error of the railway signal relay can be conveniently tested, and the requirements of product standards are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of railway signal relay contact point degree of fitness testing device. BACKGROUND

[0002] In the standard of TB / T 3383-2023 "Railway Signal Relay AX Series Relay", it is specified that the degree of fitness error of the same contact of relay closing or opening: the error between ordinary contact and ordinary contact should not be greater than 0.2 mm, the error between reinforced contact and reinforced contact should not be greater than 0.1 mm, and the error between ordinary contact and reinforced contact should not be greater than 0.5 mm. In the standard of TB / T 3384-2023 "Railway Signal Relay Test Method", it is specified that the measurement of contact degree of fitness: the error of simultaneously contacting or simultaneously opening each contact is checked by pushing the armature, the difference is measured and represented by a gauge (or a time tester), and the detection should meet the requirements of the product standard. At present, the voltage method is used to realize the degree of fitness test, which does not meet the requirements of the product standard. SUMMARY

[0003] The utility model aims to provide a kind of railway signal relay contact point degree of fitness testing device, to facilitate the test of railway signal relay contact point degree of fitness error, meet the requirements of product standard.

[0004] The utility model is realized as follows: a railway signal relay contact point degree of fitness testing device is provided, characterized by comprising: a degree of fitness test control unit, a man-machine interface, a railway signal relay socket, a displacement sensor, a code scanning gun and an operation table.

[0005] The displacement sensor is a laser displacement sensor, installed in front of the relay core pole shoe, about 30 mm away from the surface of the armature, with a measurement range of ±5 mm.

[0006] The homogeneity test control unit comprises a CPU, a data storage unit FLASH, a power module, an isolation unit, a USB interface, an Ethernet interface, at least 16-bit I / O interfaces, at least two groups of RS232 / 485 interfaces, and the CPU is connected with buttons, an industrial display screen, a displacement sensor, a code scanning gun, an operation and maintenance unit and a relay interface through the isolation two-way interface; wherein, the buttons and the relay interface are connected through I / O, the industrial display screen and the displacement sensor are connected through RS232 serial interfaces, the code scanning gun is connected through the USB interface, the operation and maintenance unit is connected through the Ethernet network, the CPU in the homogeneity test control unit has a FLASH expansion port, and the storage FLASH is connected through the FLASH expansion port, and the power supply of the CPU in the homogeneity test control unit is provided by the power module.

[0007] The homogeneity test control unit further comprises a driving power input and a power supply provided to the measured relay, the driving power is input through a driving power interface, voltage sampling and current sampling are performed, information of the voltage sampling and the current sampling is read, and the power supply provided to the measured relay is controlled by the CPU through a power control unit according to the information of the voltage sampling and the current sampling.

[0008] The control of the device comprises automatic testing and manual testing.

[0009] The homogeneity test control unit is a control and data processing center, which controls the measured relay to be lifted and dropped through a driving power output interface, is connected with the code scanning gun through a USB interface, is connected with the displacement sensor through a serial port, and is connected with the relay socket through an I / O interface.

[0010] The utility model has the advantages that the utility model can test the homogeneity of the railway signal relay contact according to the product standard requirements, and can realize manual and automatic testing, product data storage and tracing, and operation and maintenance system networking.

[0011] The utility model will be further described in connection with the embodiments and the drawings. DRAWINGS

[0012] Figure 1 is a device structure diagram of the utility model of a railway signal relay contact homogeneity testing device;

[0013] Figure 2 is a device circuit principle diagram of the utility model of a railway signal relay contact homogeneity testing device;

[0014] Figure 3 is a homogeneity test control unit principle diagram

[0015] Figure 4The utility model relates to a kind of test flow chart of equipment test device suitable for railway signal relay contact degree testing.

[0016] In the figure: 1, degree test control unit, 2, industrial screen and button, 3, degree indicating lamp, 4, measured relay, 5, railway signal relay socket, 6, displacement sensor, 7, code scanning gun, 8, operation table. DETAILED DESCRIPTION

[0017] The embodiment of the utility model will be described in detail below with reference to the drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects is fully understood and implemented.

[0018] As Figure 1 Indicated, the utility model relates to a kind of degree testing device suitable for railway signal relay contact, and its characterized is: it includes: degree test control unit 1, man-machine interface, railway signal relay socket 5, displacement sensor 6, code scanning gun 7, operation table 8;Among them, man-machine interface includes: industrial screen and button 2 and degree indicating lamp 3;Displacement sensor 6, measured relay 4, railway signal relay socket 5, degree test control unit 1 are sequentially placed from left to right on operation table 8;Degree test control unit 1 has industrial screen and button 2 and degree indicating lamp 3 before and after, and code scanning gun 7 is electrically connected with degree test control unit 1 by interface;Railway signal relay socket 5, displacement sensor 6 are also electrically connected with degree test control unit 1 by interface simultaneously;Degree test control unit 1 receives the operation instruction of man-machine interface (industrial screen and button 2), receives the information collected by railway signal relay socket 5, displacement sensor 6 and code scanning gun 7, executes degree test flow according to instruction and algorithm, saves test data, and transmits traceable data to operation and maintenance system.

[0019] In the utility model, displacement sensor 6 uses laser displacement sensor, is installed in the front of relay core pole shoe, and the distance from armature surface is about 30mm, and measurement range is ±5mm, and displacement sensor 6 is used to test the distance from sensor to measured relay 4 armature in real time, and is transferred to degree test control unit 1.

[0020] Degree test control unit 1 calculates the movement of measured relay 4 contact according to the length proportion of measuring point, pull rod to armature and yoke connecting point, and degree test control unit 1 collects the on-off value information of measured relay 4 contact system, and obtains contact degree error information through algorithm.

[0021] In the utility model, code scanning gun 7 scans the two-dimensional code or bar code of measured relay 4, automatically identifies and records the model and number of measured relay 4, and transmits the model and number information of measured relay 4 to degree test control unit 1.

[0022] In this invention, the homogeneity test control unit 1 controls the lifting and lowering of the relay under test 4, and receives the serial number information of the relay under test 4 transmitted by the barcode scanner 7; receives the armature action information transmitted by the displacement sensor 6; and receives the relay contact closing and opening information transmitted by the relay socket 5. The homogeneity test control unit 1 calculates the homogeneity information of the relay, and transmits the model, serial number, and homogeneity information of the relay under test 4 to the operation and maintenance system through the Ethernet interface, and displays the information through the industrial screen 2 and the homogeneity indicator light 3.

[0023] In this invention, the operating table is used to support relevant testing instruments and equipment, making it convenient for staff to operate.

[0024] Figure 2 A circuit diagram of a device suitable for testing the contact uniformity of railway signal relays is provided.

[0025] The homogeneity test control unit 1 is the control and data processing center.

[0026] It controls the lifting and lowering of the tested relay 4 through the drive power output interface;

[0027] The device receives the serial number information of the relay under test 4 from the barcode scanner 7 via the USB interface.

[0028] Receive armature motion information transmitted from displacement sensor 6 via serial port;

[0029] Receive relay contact closure and closure information from relay socket 5 via the I / O interface;

[0030] The alignment information of the relay is calculated, and the model, number, and alignment information of the relay under test 4 are displayed on the industrial screen 2 and the alignment indicator light 3 through the serial port and I / O interface.

[0031] It is also transmitted to the operation and maintenance system via Ethernet interface.

[0032] like Figure 3 As shown, the homogeneity test control unit 1 mainly includes a CPU, a data storage unit FLASH, a power module, an isolation unit, a USB interface, an Ethernet interface, at least 16 I / O interfaces, and at least two sets of RS232 / 485 interfaces. The CPU is connected to the buttons, industrial display screen, displacement sensor 6, barcode scanner 7, maintenance unit, and relay interface through isolated bidirectional interfaces. Among them, the buttons and relay interfaces are electrically connected via I / O; the industrial display screen and displacement sensor 6 are electrically connected via RS232 serial interface; the barcode scanner 7 is electrically connected via USB interface; and the maintenance unit is electrically connected via Ethernet network.

[0033] The CPU in the uniformity test control unit 1 has a FLASH expansion port, and the FLASH is electrically connected to the CPU through the FLASH expansion port.

[0034] The power supply of the CPU in the uniformity test control unit 1 is provided by the power supply module.

[0035] The uniformity test control unit 1 further comprises a driving power input and provides power to the tested relay, the driving power is input through a driving power interface, voltage sampling and current sampling are carried out, information of the voltage sampling and the current sampling is read, and the power provided to the tested relay is controlled by the CPU through a power control unit according to the information of the voltage sampling and the current sampling.

[0036] As shown in Figure 4 The utility model relates to a kind of test flow chart suitable for railway signal relay contact uniformity testing device, and its control flow mainly includes two parts of automatic test and manual test.

[0037] Specific working process is as follows:

[0038] 101 system power-on start;

[0039] 102 power-on self-checking: manual maintenance when having fault, no fault enters next flow;

[0040] 103 enter relay code by hand or scanning gun;

[0041] 104 select manual / automatic test type, automatic enters 105 flow, manual enters 116 flow;

[0042] 105 press automatic test button or click automatic test key on display screen, equipment enters automatic test state, first test relay front contact uniformity;

[0043] 106 in relay drop state, sensor measures armature distance and records as calibration value 1;

[0044] 107 relay power-on start;

[0045] 108 front contact conduction triggers corresponding sensor to armature distance 1-distance 8 collection;

[0046] 109 by comparing with calibration value 1, the relative displacement of each group of front contact closure is calculated, further calculate front contact uniformity and judge whether it is qualified, and test result is displayed through industrial display and LED;

[0047] 110 start testing relay rear contact uniformity;

[0048] 111 When the relay is in operation, the sensor measures the distance from the armature and records it as the calibration value 2;

[0049] 112 The relay was de-energized and dropped;

[0050] 113 The subsequent contact is activated, triggering the corresponding sensor to collect data at a distance of 9-16 from the armature.

[0051] 114 By comparing with calibration value 2, the relative displacement when each group of rear contacts closes is calculated, the alignment of the rear contacts is further calculated and its qualification is determined, and the test results are displayed on an industrial display and LED.

[0052] 115 After the test is completed, the test results are automatically stored in the database and uploaded to the operation and maintenance system through the communication channel.

[0053] 116 Press the manual test front contact button or click the automatic test front contact button on the display screen to enter the manual test state for front contact alignment.

[0054] 117. With the relay in the dropped state, the sensor measures the distance from the armature and records it as calibration value 1;

[0055] 118 Relay power-on start;

[0056] 119 The front contact is turned on to trigger the corresponding sensor to collect data at a distance of 1-8 from the armature;

[0057] 120 By comparing with calibration value 1, the relative displacement of each group of front contacts when they are closed is calculated, the front contact alignment is further calculated and its qualification is determined, and the test results are displayed on an industrial display and LED.

[0058] 121 Press the manual test contact button or click the automatic test contact button on the display screen to enter the manual test contact alignment state;

[0059] 122 When the relay is in operation, the sensor measures the distance from the armature and records it as the calibration value 2;

[0060] 123 The relay was de-energized and dropped;

[0061] The 124-connector conducts and triggers the corresponding sensor to collect data at a distance of 9-16 from the armature.

[0062] 125 By comparing with calibration value 2, the relative displacement when each group of rear contacts closes is calculated, the alignment of the rear contacts is further calculated and its qualification is determined, and the test results are displayed on an industrial display and LED.

[0063] 126 When needed, click to display the storage and upload data, the test results are stored in the database and uploaded to the operation and maintenance system through the communication channel.

[0064] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as belonging to the protection scope of the utility model.

Claims

1. A device for testing the alignment of the contacts of a railway signal relay, characterized in that it comprises include: The system includes a homogeneity test control unit (1), a human-machine interface, a railway signal relay socket (5), a displacement sensor (6), a barcode scanner (7), and an operating console (8). The human-machine interface includes an industrial screen and buttons (2) and a homogeneity indicator light (3). The operating console (8) is arranged from left to right with the displacement sensor (6), the relay under test (4), the railway signal relay socket (5), and the homogeneity test control unit (1). The homogeneity test control unit (1) has an industrial screen and buttons (2) and a homogeneity indicator light (3) in front and behind it. The barcode scanner (7) is electrically connected to the homogeneity test control unit (1) through an interface. The railway signal relay socket (5) and the displacement sensor (6) are also electrically connected to the homogeneity test control unit (1) through an interface.

2. A device for testing the contact alignment of a railway signal relay according to claim 1, characterized in that: The displacement sensor (6) is a laser displacement sensor, which is installed in front of the relay core pole shoe, about 30mm away from the armature surface, with a measurement range of ±5mm.

3. A device for testing the contact alignment of a railway signal relay according to claim 1, characterized in that: The Qidu test control unit (1) includes a CPU, a data storage unit FLASH, a power supply module, an isolation unit, a USB interface, an Ethernet interface, at least 16-bit I / O interfaces, and at least two sets of RS232 / 485 interfaces. The CPU is connected to the button, industrial display, displacement sensor (6), barcode scanner (7), maintenance unit, and relay interface through the isolated bidirectional interface. Among them, the button and relay interface are electrically connected through I / O, the industrial display and displacement sensor are electrically connected through RS232 serial interface, the barcode scanner (7) is electrically connected through USB interface, and the maintenance unit is electrically connected through Ethernet network. The CPU in the Qidu test control unit (1) has a FLASH expansion port, which is electrically connected to the FLASH memory. The CPU in the Qidu test control unit (1) is powered by the power supply module.

4. A device for testing the contact alignment of a railway signal relay according to claim 1, characterized in that: The homogeneity test control unit (1) also includes a drive power input and a power supply to the relay under test (4). The drive power is input through the drive power interface and is sampled by voltage and current respectively. The voltage and current sampling information is read and the CPU controls the power supply control unit to supply power to the relay under test (4) based on the voltage and current sampling information.

5. A device for testing the contact alignment of a railway signal relay according to claim 1, characterized in that: The homogeneity test control unit (1) includes two parts: automatic test and manual test.

6. A device for testing the contact alignment of a railway signal relay according to claim 1, characterized in that: The homogeneity test control unit (1) is the control and data processing center. It controls the relay (4) under test to pick up and drop through the drive power output interface; it is electrically connected to the barcode scanner (7) through the USB interface; it is electrically connected to the displacement sensor (6) through the serial port; and it is electrically connected to the relay socket (5) through the I / O interface.

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