Railway vehicle connection change-over switch test system

Abstract

The invention relates to the field of railway vehicles, and provides a railway vehicle connection change-over switch test system, which comprises an electrical device and an industrial personal computer, and is characterized in that the electrical device comprises a dynamometer, and the dynamometer is suitable for collecting contact pressure of a contact of a connection change-over switch; and the industrial personal computer is electrically connected with the dynamometer so as to obtain the contact pressure of the contact and output a comparison result between the contact pressure of the contact and the set contact pressure of the contact. When the contact pressure of the contacts connected with the change-over switch needs to be detected, the industrial personal computer collects data of the contact pressure of the contacts connected with the change-over switch through the dynamometer, compares the collected data with the set contact pressure of the contacts, and automatically judges a detection result. The connection change-over switch is connected with the test system through the corresponding interfaces, the industrial personal computer can control the electrical devices connected under the interfaces to test after collecting commands through the man-machine interface, test data are collected in real time, test results are displayed in real time, the test efficiency can be improved, errors caused by manual test are avoided, and the test accuracy is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of rail vehicles and provides a rail vehicle connection switching switch test system. Background Art

[0002] The connection transfer switch is an important control component on rail vehicles. The connection transfer switch maintenance requires contact force test, contact action logic correctness when the connection transfer switch is opened and closed, insulation withstand voltage test, and switch action test. In the early days, manual testing was used, which was inefficient and inaccurate. In particular, the error rate of each contact action logic test was high, and the accuracy of the test could not be guaranteed. Summary of the invention

[0003] The embodiment of the present invention provides a rail vehicle connection switch test system to solve one of the defects in the related art. When it is necessary to detect the contact pressure of the connection switch, the industrial computer collects the contact pressure data of the connection switch through the dynamometer, and automatically determines the detection result based on the comparison between the collected data and the set contact pressure. The connection switch to be tested is connected to the test system through the corresponding interface. After the industrial computer collects the command through the human-machine interface, it can control the electrical devices connected to each interface to test, collect test data in real time, and display the test results in real time, which can greatly improve the test efficiency, reduce manpower consumption, avoid the error of manual testing, and ensure the accuracy of the test.

[0004] The rail vehicle connection switching switch test system provided by the embodiment of the present invention includes: An electrical device, the electrical device comprising a dynamometer, the dynamometer being adapted to collect contact pressure of a contact connected to a switching switch; An industrial computer is electrically connected to the dynamometer to obtain the contact pressure of the contact point and output a comparison result between the contact pressure of the contact point and a set contact pressure of the contact point.

[0005] According to one embodiment of the present invention, the electrical device further comprises: A resistance tester, wherein the resistance tester is suitable for collecting the contact resistance of the connection switching switch, the industrial computer is electrically connected to the resistance tester, and is suitable for obtaining the contact resistance and outputting a comparison result between the contact resistance and a set contact resistance; The test relay is electrically connected to the industrial computer and is suitable for controlling the on and off of the test relay so that the resistance tester is electrically connected to the contacts of the connection switching switch.

[0006] According to one embodiment of the present invention, the electrical device further comprises: An insulation withstand voltage tester is used to collect the insulation resistance of the connection switching switch. The industrial computer is electrically connected to the insulation withstand voltage tester and is used to obtain the insulation resistance and output a comparison result between the insulation resistance and a set insulation resistance.

[0007] According to one embodiment of the present invention, it also includes: An air circuit device, the air circuit device includes an air supply device, a cylinder, a pressure sensor and a pressure regulating proportional valve. The air supply device, the pressure regulating proportional valve and the cylinder are connected in sequence through a pipeline. The pressure sensor is arranged on a pipe section connecting the pressure regulating proportional valve and the cylinder, and is suitable for detecting pipeline pressure. The industrial computer is electrically connected to the pressure sensor, and is suitable for obtaining the pipeline pressure and outputting a comparison result between the pipeline pressure and a set pressure; the industrial computer is electrically connected to the pressure regulating proportional valve, and is suitable for adjusting the pipeline pressure to reach the set pressure.

[0008] According to one embodiment of the present invention, the gas path device further comprises: A digital pressure gauge, wherein the digital pressure gauge is suitable for detecting the gas supply pressure of the gas supply device, and the industrial computer is electrically connected to the digital pressure gauge, and is suitable for obtaining the gas supply pressure and outputting a comparison result between the gas supply pressure and the set pressure.

[0009] According to one embodiment of the present invention, the electrical device further comprises: The control relay is electrically connected to the industrial computer and is suitable for controlling the on and off of the control relay so that the gas path device that drives the connection switching switch to operate is connected.

[0010] According to one embodiment of the present invention, the electrical device further comprises: A temperature and humidity detector, wherein the temperature and humidity detector is suitable for collecting temperature and humidity, and the industrial computer is electrically connected to the temperature and humidity detector, and is suitable for obtaining the temperature and humidity.

[0011] According to an embodiment of the present invention, the industrial computer is suitable for controlling the insulation and voltage withstand tester to switch between an insulation test mode, an AC voltage withstand test mode and a DC voltage withstand test mode.

[0012] According to one embodiment of the present invention, the gas supply device comprises: Air source input quick connector; A filter, the filter being connected to the wind source input quick connector; An air storage tank, wherein the air inlet of the air storage tank is communicated with the filter, and the air outlet of the air storage tank is communicated with the pressure regulating proportional valve; A one-way valve, the one-way valve is arranged on a pipeline connecting the pressure regulating proportional valve and the pressure sensor; An air source output quick connector, one end of which is connected to the pressure sensor, and the other end of which is connected to the cylinder.

[0013] According to one embodiment of the present invention, it also includes: A power supply device is connected to the gas circuit device and the electrical device.

[0014] The rail vehicle connection switching switch test system provided according to the embodiment of the present invention is a test system that can automatically test and automatically process test data to determine the test results, and is mainly composed of an electrical device and an industrial computer. When it is necessary to detect the contact pressure of the connection switching switch, the industrial computer collects the data of the contact pressure of the connection switching switch through a dynamometer, and automatically determines the test result based on the comparison of the collected data with the set contact pressure. The connection switching switch to be tested is connected to the test system through the corresponding interface. After the industrial computer collects the command through the human-machine interface, it can control the electrical devices connected to each interface to perform the test, collect the test data in real time, and display the test results in real time, which can greatly improve the test efficiency, reduce manpower consumption, avoid the error of manual testing, and ensure the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a gas circuit device provided by a rail vehicle connection switching switch test system according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of an electrical device provided by a rail vehicle connection switching switch test system according to an embodiment of the present invention.

[0017] Reference numerals: 100, electrical device; 110, dynamometer; 120, resistance tester; 130, test relay; 140, insulation withstand voltage tester; 150, control relay; 160, temperature and humidity detector; 170, solenoid valve; 180, conversion module; 200, industrial computer; 300, gas circuit device; 310, cylinder; 320, pressure sensor; 330, pressure regulating proportional valve; 340, digital pressure gauge; 350, air source input quick connector; 351, main valve; 360, filter; 370, air storage tank; 371, safety valve; 380, one-way valve; 390, air source output quick connector; 400, power supply device; 410, 110V switching power supply; 420, 24V switching power supply; 430, 5V switching power supply; 500. Monitor; 600. Printer. DETAILED DESCRIPTION

[0018] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0021] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0023] like Figure 1 to Figure 2 As shown, the rail vehicle connection switching switch test system provided by the embodiment of the present invention includes an electrical device 100 and an industrial computer 200. The electrical device 100 includes a dynamometer 110, and the dynamometer 110 is suitable for collecting the contact pressure of the connection switching switch; the industrial computer 200 is electrically connected to the dynamometer 110 to obtain the contact pressure and output the comparison result between the contact pressure and the set contact pressure.

[0024] The rail vehicle connection switch test system of the embodiment of the present invention is a test system that can automatically test and automatically process test data to determine the test results, and is mainly composed of an electrical device 100 and an industrial computer 200. When it is necessary to detect the contact pressure of the connection switch, the industrial computer 200 collects the data of the contact pressure of the connection switch through the dynamometer 110, and automatically determines the test result based on the comparison of the collected data with the set contact pressure. The connection switch to be tested is connected to the test system through the corresponding interface. After the industrial computer 200 collects the command through the human-machine interface, it can control the electrical device 100 connected to each interface to perform the test, and collect the test data in real time, and display the test results in real time, which can greatly improve the test efficiency, reduce manpower consumption, avoid the error of manual testing, and ensure the accuracy of the test.

[0025] In this embodiment, the connection switching switch under test has multiple contacts, and different contacts have two action states: open and closed. When the contacts are closed, corresponding contact pressure will be generated. The force gauge 110 can detect and obtain the contact pressure of the closed contacts. Each contact is equipped with an independent force gauge 110. The industrial computer 200 can simultaneously obtain the contact pressure of each contact detected by multiple force gauges 110.

[0026] In some embodiments, the force gauge 110 may use a fiber optic force sensor to achieve non-contact measurement, further improving measurement accuracy and safety.

[0027] According to one embodiment of the present invention, the electrical device 100 also includes a resistance tester 120 and a test relay 130. The resistance tester 120 is suitable for collecting the contact resistance connected to the switching switch. The industrial computer 200 is electrically connected to the resistance tester 120, suitable for obtaining the contact resistance, and outputting a comparison result between the contact resistance and the set contact resistance; the industrial computer 200 is electrically connected to the test relay 130, suitable for controlling the on and off of the test relay 130, so that the resistance tester 120 is electrically connected to the contacts connected to the switching switch.

[0028] In this embodiment, the electrical device 100 is mainly composed of a dynamometer 110, a resistance tester 120 and a test relay 130. When it is necessary to measure the contact action logic of the connection switching switch, the action instruction to be tested is sent, and the industrial computer 200 drives the corresponding test relay 130 to control the specific contact to be connected to the resistance tester 120 to form a detection path. At the same time, the industrial computer 200 collects the contact resistance data detected by the resistance tester 120, and automatically determines the detection result based on the comparison of the collected contact resistance data with the set contact resistance.

[0029] Each action instruction has its own closed or disconnected action state for each contact. Therefore, different contacts will be in different action states under the action instruction to be tested. The action states of each contact together constitute the contact action logic of the switch connected under the action instruction. The resistance tester 120 detects that the contact resistance in the closed state is different from the contact resistance in the disconnected state. By comparing the detected contact resistance with the set contact resistance, it can be obtained whether the detected contact action logic is correct. Since each contact is equipped with an independent resistance tester 120, the industrial computer 200 can simultaneously obtain the contact resistance of each contact detected by each resistance tester 120, so it can also obtain the specific erroneous contact when the detected contact action logic is incorrect.

[0030] In this embodiment, the resistance tester 120 transmits the test data to the industrial computer 200 via RS232. In some embodiments, the resistance tester 120 may also be a multi-channel resistance tester 120 to measure the resistance of multiple contacts at the same time, thereby increasing the test speed.

[0031] According to one embodiment of the present invention, the electrical device 100 also includes an insulation withstand voltage tester 140, which is suitable for collecting the insulation resistance of the connection switching switch. The industrial computer 200 is electrically connected to the insulation withstand voltage tester 140, suitable for obtaining the insulation resistance, and outputting a comparison result between the insulation resistance and the set insulation resistance.

[0032] In this embodiment, the electrical device 100 is mainly composed of a dynamometer 110, a resistance tester 120, a test relay 130 and an insulation withstand voltage tester 140. When the insulation resistance of the connection switch needs to be measured, the corresponding resistance is output to the position to be tested of the connection switch, and the industrial computer 200 collects the insulation resistance data of the position to be tested detected by the insulation withstand voltage tester 140, and compares the data with the set insulation resistance to automatically determine the result.

[0033] In this embodiment, the insulation withstand voltage tester 140 transmits the test data to the industrial control host via RS232.

[0034] In some embodiments, a high voltage test function can be added to simulate the insulation performance under extreme conditions to ensure the reliability of the product in various environments. An integrated alarm system can also be added to automatically trigger an alarm when the insulation performance is lower than the safety threshold, reminding the operator to take measures to ensure the safety performance of the connection switch and avoid electrical accidents.

[0035] According to one embodiment of the present invention, the rail vehicle connection switching switch test system also includes an air circuit device 300, which includes an air supply device, a cylinder 310, a pressure sensor 320 and a pressure regulating proportional valve 330. The air supply device, the pressure regulating proportional valve 330 and the cylinder 310 are connected in sequence through a pipeline. The pressure sensor 320 is arranged on the pipe section connecting the pressure regulating proportional valve 330 and the cylinder 310, and is suitable for detecting the pipeline pressure. The industrial computer 200 is electrically connected to the pressure sensor 320, and is suitable for obtaining the pipeline pressure and outputting the comparison result between the pipeline pressure and the set pressure; the industrial computer 200 is electrically connected to the pressure regulating proportional valve 330, and is suitable for adjusting the pipeline pressure to reach the set pressure.

[0036] In this embodiment, the rail vehicle connection switch test system mainly includes an electrical device 100, a gas circuit device 300 and an industrial computer 200. The gas circuit device 300 is mainly used to provide driving force for the action of the connection switch. On the basis of the gas supply device, the cylinder 310 and the pipeline to realize the gas supply to the connection switch, it mainly includes a pressure sensor 320 and a pressure regulating proportional valve 330 arranged on the pipeline. The gas supply device supplies gas to the cylinder 310, and the gas supply pressure is adjusted by the pressure regulating proportional valve 330. The industrial computer 200 can control the action of the cylinder 310 through the solenoid valve 170 to drive the action of the connection switch.

[0037] When it is necessary to conduct a pressure maintenance and action test of the connection switching switch, the industrial computer 200 provides driving force to the connection switching switch through the cylinder 310 via the gas circuit device 300. After the cylinder 310 completes the pressure supply to the passage in the connection switching switch, the actual pressure in the passage in the connection switching switch is detected by the pressure sensor 320. The industrial computer 200 can collect the pipeline pressure data detected by the pressure sensor 320, and compare the data with the set pressure. After automatically judging the result, the pressure maintenance effect of the connection switching switch to be tested can be detected. Then, according to the judgment result, the pressure regulating proportional valve 330 is controlled to adjust the pressure, thereby adjusting the gas supply pressure of the gas supply device to the cylinder 310. In this way, the action control of the connection switching switch can be realized through the gas circuit device 300, and the pressure maintenance effect test can be completed, and the effect of automatically adjusting the pressure in the pipeline can be achieved.

[0038] According to one embodiment of the present invention, the gas circuit device 300 further includes a digital pressure gauge 340, which is suitable for detecting the gas supply pressure of the gas supply device. The industrial computer 200 is electrically connected to the digital pressure gauge 340, suitable for obtaining the gas supply pressure, and outputting the comparison result between the gas supply pressure and the set pressure. In this embodiment, the gas circuit device 300 mainly includes a pressure sensor 320, a pressure regulating proportional valve 330 and a digital pressure gauge 340 arranged on the pipeline on the basis of realizing the connection switching switch gas supply by the gas supply device, the cylinder 310 and the pipeline.

[0039] When it is necessary to conduct a pressure maintenance and action test of the connection switching switch, the industrial computer 200 provides driving force to the connection switching switch through the cylinder 310 via the gas circuit device 300. After the cylinder 310 completes the pressure supply to the passage in the connection switching switch, the actual pressure in the passage in the connection switching switch is detected by the pressure sensor 320. The industrial computer 200 can collect the pipeline pressure data detected by the pressure sensor 320, and compare the data with the set pressure. After automatically judging the result, the pressure maintenance effect of the connection switching switch to be tested can be detected. Then, according to the judgment result, the pressure regulating proportional valve 330 is controlled to adjust the pressure, thereby adjusting the gas supply pressure of the gas supply device to the cylinder 310. In this way, the action control of the connection switching switch can be realized through the gas circuit device 300, and the pressure maintenance effect test can be completed, and the effect of automatically adjusting the pressure in the pipeline can be achieved.

[0040] The air supply pressure of the air supply device is collected by a digital pressure gauge 340 in the air circuit of the air supply device. The industrial computer 200 obtains the data collected by the digital pressure gauge 340 and the set pressure. If the set pressure is not reached, the air supply pressure in the air supply device is adjusted by adjusting the proportional valve. If the set pressure is reached, air is supplied to the cylinder 310.

[0041] In this embodiment, the 4~20mA current signal output by the digital pressure gauge 340 is converted into an RS485 signal by the signal conversion module 180, and then input into the RS485 signal interface of the industrial computer 200. The industrial computer 200 can read the pressure in the gas circuit in real time and display it in real time.

[0042] According to one embodiment of the present invention, the electrical device 100 further includes a control relay 150, and the industrial computer 200 is electrically connected to the control relay 150, and is suitable for controlling the on and off of the control relay 150, so as to connect the gas circuit device 300 that drives the connection switch to operate. In this embodiment, the electrical device 100 is mainly composed of a dynamometer 110, a resistance tester 120, a test relay 130, an insulation withstand voltage tester 140 and a control relay 150. The industrial computer 200 can control the on and off of a specific electrical circuit on the connection switch during the test process by controlling the on and off of the control relay 150.

[0043] There are multiple electrical circuits in the connection switching switch, but in the actual test process, usually only one electrical circuit is tested, so the electrical circuit to be tested is connected by controlling the on and off of the control relay 150. After the test is completed, the electrical circuit is disconnected by controlling the relay 150 and other electrical circuits to be tested are connected.

[0044] According to one embodiment of the present invention, the electrical device 100 further includes a temperature and humidity detector 160, which is suitable for collecting temperature and humidity. The industrial computer 200 is electrically connected to the temperature and humidity detector 160 and is suitable for obtaining temperature and humidity. In this embodiment, the electrical device 100 is mainly composed of a dynamometer 110, a resistance tester 120, a test relay 130, a control relay 150, an insulation withstand voltage tester 140 and a temperature and humidity detector 160. The temperature and humidity detector 160 can detect the temperature and humidity of the external environment. The industrial computer 200 can display the temperature and humidity during the test in real time by acquiring the detection data of the temperature and humidity detector 160. By recording the test data under the temperature and humidity during the test and comparing it with the parameters under different temperatures and humidities, it is determined whether the connection switch of the test is qualified.

[0045] According to an embodiment of the present invention, the industrial computer 200 is suitable for controlling the insulation withstand voltage tester 140 to switch between the insulation test mode, the AC withstand voltage test mode and the DC withstand voltage test mode. In this embodiment, the experimental system can automatically switch between the three insulation test modes. The industrial computer 200 controls the working mode of the insulation withstand voltage tester 140 through the RS232 communication interface. The working mode is divided into three modes, mode 1 represents insulation test (IR), mode 2 represents AC withstand voltage test (AC), and mode 3 represents DC withstand voltage test (DC).

[0046] The influence of the connection switching switch control circuit is that the rail vehicle application circuit connected to it has parts that are powered by AC and DC, so the test mode of the insulation withstand voltage tester 140 can have both AC withstand voltage test (AC) and DC withstand voltage test (DC).

[0047] According to one embodiment of the present invention, the air circuit device 300 also includes an air source input quick connector 350, a filter 360, an air tank 370, a one-way valve 380 and an air source output quick connector 390; the filter 360 is connected to the air source input quick connector 350; the air inlet of the air tank 370 is connected to the filter 360, and the air outlet of the air tank 370 is connected to the pressure regulating proportional valve 330; the one-way valve 380 is arranged on the pipeline connecting the pressure regulating proportional valve 330 and the pressure sensor 320; one end of the air source output quick connector 390 is connected to the pressure sensor 320, and the other end is connected to the cylinder 310.

[0048] In this embodiment, an external wind source of 0.6Mpa is connected to the rail vehicle connection switching switch test system through the wind source input quick connector 350. The wind source is filtered by the triple filter 360 and enters the air storage tank 370. The digital pressure gauge 340 is set on the air storage tank 370. The industrial computer 200 can collect the pressure of the air storage tank 370 and display it in real time by collecting data from the digital pressure gauge 340. The regulating proportional valve is set on the pipeline connecting the air storage tank 370 and the one-way valve 380. The air storage tank 370 is connected to the one-way valve 380. The valve 380 supplies air, and the air supply pressure is adjusted by adjusting the proportional valve. The one-way valve 380 is connected to the air source output quick connector 390, and the air source output quick connector 390 inputs the air source into the cylinder 310. The pipeline connected between the one-way valve 380 and the air source output quick connector 390 is provided with a pressure sensor 320. When the air supply device completes the air supply to the cylinder 310, due to the setting of the one-way valve 380, the air path of the connection switch connected to the cylinder 310 is in a closed state, and the pressure-maintaining effect of the connection switch can be tested. The industrial computer 200 can adjust the air pressure in the pipeline in real time according to the demand by collecting the pressure sensor 320 signal and controlling the pressure-regulating proportional valve 330, and then automatically adjust the test pressure in the pipeline to complete the pressure maintenance and cylinder 310 action test.

[0049] In this embodiment, the air tank 370 can be a 5L air tank 370, an external wind source of 0.6Mpa is used, the adjustment range of the pressure regulating proportional valve 330 is between 0.25 and 0.3MPa, and a safety valve 371 is provided on the air tank 370, which can exhaust and release the pressure of the air tank 370 when the pressure in the air tank 370 is too high to ensure the safety of the air path. A main valve 351 is also provided on the pipeline connecting the air source quick input connector 350 and the filter 360, and the main valve 351 controls the air supply of the air source to the air supply device.

[0050] According to one embodiment of the present invention, the rail vehicle connection switch test system further includes a power supply device 400, which is connected to the gas circuit device 300 and the electrical device 100. In this embodiment, the rail vehicle connection switch test system is mainly composed of the gas circuit device 300, the electrical device 100, the industrial computer 200 and the power supply device 400, and the power supply device 400 supplies power to various components in the gas circuit device 300 and the electrical device 100.

[0051] In this embodiment, the power supply device 400 mainly includes a 110V switching power supply 410, a 24V switching power supply 420 and a 5V switching power supply 430. The 110V switching power supply 410 provides a DC 110V power supply for the cylinder 310 to operate. The 24V switching power supply 420 provides a DC 24V power supply for the digital pressure gauge 340, the RS485 conversion module 180, the pressure sensor 320, the temperature and humidity detector 160, the pressure regulating proportional valve 330, the control relay 150 and the test relay 130. The 5V switching power supply 430 provides a DC 5V power supply for the dynamometer 110.

[0052] In some embodiments, the rail vehicle connection switch test system also includes a software test system, a display 500 and a printer 600. The software test system collects test data in the industrial computer 200 for automatic judgment, stores the test results after various data processing is completed, and can automatically generate a test result report, and then display or print the report through the display 500 or the printer 600. The industrial computer 200 can store the test data for a long time, which is convenient for subsequent analysis and troubleshooting. The various devices of the test system are integrated and easy to use.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail vehicle connection switch test system, characterized in that: include: An electrical device, the electrical device comprising a dynamometer, the dynamometer being adapted to collect contact pressure of a contact connected to a switching switch; An industrial computer is electrically connected to the dynamometer to obtain the contact pressure of the contact point and output a comparison result between the contact pressure of the contact point and a set contact pressure of the contact point.

2. The rail vehicle connection switch test system according to claim 1, characterized in that: The electrical device further comprises: A resistance tester, wherein the resistance tester is suitable for collecting the contact resistance of the connection switching switch, the industrial computer is electrically connected to the resistance tester, and is suitable for obtaining the contact resistance and outputting a comparison result between the contact resistance and a set contact resistance; The test relay is electrically connected to the industrial computer and is suitable for controlling the on and off of the test relay so that the resistance tester is electrically connected to the contacts of the connection switching switch.

3. The rail vehicle connection switch test system according to claim 1, characterized in that: The electrical device further comprises: An insulation withstand voltage tester is used to collect the insulation resistance of the connection switching switch. The industrial computer is electrically connected to the insulation withstand voltage tester and is used to obtain the insulation resistance and output a comparison result between the insulation resistance and a set insulation resistance.

4. The rail vehicle connection switch test system according to claim 1, characterized in that: Also includes: An air circuit device, the air circuit device includes an air supply device, a cylinder, a pressure sensor and a pressure regulating proportional valve. The air supply device, the pressure regulating proportional valve and the cylinder are connected in sequence through a pipeline. The pressure sensor is arranged on a pipe section connecting the pressure regulating proportional valve and the cylinder, and is suitable for detecting pipeline pressure. The industrial computer is electrically connected to the pressure sensor, and is suitable for obtaining the pipeline pressure and outputting a comparison result between the pipeline pressure and a set pressure; the industrial computer is electrically connected to the pressure regulating proportional valve, and is suitable for adjusting the pipeline pressure to reach the set pressure.

5. The rail vehicle connection switch test system according to claim 4, characterized in that: The gas path device also includes: A digital pressure gauge, wherein the digital pressure gauge is suitable for detecting the gas supply pressure of the gas supply device, and the industrial computer is electrically connected to the digital pressure gauge, and is suitable for obtaining the gas supply pressure and outputting a comparison result between the gas supply pressure and the set pressure.

6. The rail vehicle connection switch test system according to claim 4, characterized in that: The electrical device further comprises: The control relay is electrically connected to the industrial computer and is suitable for controlling the on and off of the control relay so that the gas path device that drives the connection switching switch is connected.

7. The rail vehicle connection switch test system according to any one of claims 1 to 6, characterized in that: The electrical device further comprises: A temperature and humidity detector, wherein the temperature and humidity detector is suitable for collecting temperature and humidity, and the industrial computer is electrically connected to the temperature and humidity detector, and is suitable for obtaining the temperature and humidity.

8. The rail vehicle connection switch test system according to claim 3, characterized in that: The industrial computer is suitable for controlling the insulation withstand voltage tester to switch between an insulation test mode, an AC withstand voltage test mode and a DC withstand voltage test mode.

9. The rail vehicle connection switch test system according to claim 5, characterized in that: The gas supply device comprises: Air source input quick connector; A filter, the filter being connected to the wind source input quick connector; An air storage tank, wherein the air inlet of the air storage tank is connected to the filter, and the air outlet of the air storage tank is connected to the pressure regulating proportional valve; A one-way valve, the one-way valve is arranged on a pipeline connecting the pressure regulating proportional valve and the pressure sensor; An air source output quick connector, one end of which is connected to the pressure sensor, and the other end of which is connected to the cylinder.

10. The rail vehicle connection switch test system according to claim 4, characterized in that: Also includes: A power supply device is connected to the gas circuit device and the electrical device.

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