Testing device of railway relay

Abstract

The embodiment of the invention relates to the field of relay performance testing devices, in particular to a testing device of a railway relay. The testing device comprises an electric signal detecting piece, a determining piece and an acting force applying and measuring assembly. The electric signal detector is used for detecting electric signals; the acting force applying and measuring assembly is set to apply an acting force moving in the direction away from the movable contact to the corresponding static contact connecting piece and measure the magnitude of the acting force when the movable contact is in contact with one static contact until the static contact connecting piece elastically deforms to separate the static contact from the movable contact; the determining part is used for determining the acting force when the static contact is separated from the movable contact according to the electric signal detected by the electric signal detecting part and the acting force measured by the acting force applying and measuring assembly. According to the testing device provided by the embodiment of the invention, the electric signal detection piece, the determining piece and the acting force applying and measuring assembly are arranged, so that the acting force when the static contact and the movable contact of the railway relay are separated can be measured, and the contact pressure is determined.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of relay performance testing devices, and specifically to a testing device for railway relays. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] Railway relay is one of the key electronic devices in railway signal control system. Its performance parameters are related to the normal operation of railway signal control system. Therefore, it is necessary to test the performance parameters of railway relay. Summary of the invention

[0004] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0005] An embodiment of the present application provides a testing device for a railway relay.

[0006] The railway relay includes a plurality of contact groups, each of which includes: a moving contact assembly and two static contact assemblies respectively arranged on both sides of the moving contact assembly, the moving contact assembly includes a moving contact connector and a moving contact arranged on the moving contact connector, the static contact assembly includes a static contact connector and a static contact arranged on the static contact connector, and the moving contact assembly is arranged so that the moving contact can move relative to the static contact assembly so that the moving contact can contact with a static contact to form an electrical signal.

[0007] The test device may include an electric signal detection member, a determination member, and a force application and measurement assembly. The electric signal detection member is used to detect electric signals; the force application and measurement assembly is configured to apply a force moving in a direction away from the moving contact to the corresponding static contact connection member when the moving contact contacts a static contact, and measure the magnitude of the force until the static contact connection member undergoes elastic deformation so that the static contact is separated from the moving contact; the determination member is used to determine the force when the static contact is separated from the moving contact based on the electric signal detected by the electric signal detection member and the magnitude of the force measured by the force application and measurement assembly.

[0008] The test device provided in the embodiment of the present application can measure the force when the static contact and the moving contact of the railway relay are separated by setting an electrical signal detection component, a determination component and a force application and measurement component, thereby determining the contact pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other objects and advantages of the present application will become apparent from the following description of the embodiments of the present application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the present application.

[0010] Figure 1 It is a schematic diagram of the structure of the testing device provided in the embodiment of the present application.

[0011] Figure 2 It is a schematic diagram of the structure after the railway relay to be tested is installed in the test device provided in the embodiment of the present application.

[0012] Figure 3 yes Figure 2 A local enlarged view of the position where the force-applying member contacts the contact group.

[0013] Figure 4 It is a schematic structural diagram of a force application and measurement component and an image acquisition component provided in one embodiment of the present application.

[0014] Figure 5 yes Figure 4 Schematic diagram of the structure after the force-applying part, measurement auxiliary part and force measuring part of the test device are assembled.

[0015] Figure 6 yes Figure 5 Side view of the assembled force-applying member, measuring auxiliary member and force measuring member.

[0016] Figure 7 It is a schematic diagram of the structure of a test platform of a test device provided in an embodiment of the present application.

[0017] Figure 8 It is a structural block diagram of a testing device provided in an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 10. Testing device; 101. Electrical signal detection component; 102. Determination component; 103. Control component;

[0020] 11. force application and measurement assembly; 111. second moving member; 1111. second main body; 1112. second sliding fitting member; 112. first moving member; 1121. first main body; 11211. vertical plate; 11212. horizontal plate; 1122. first sliding member;

[0021] 113. force applying member; 1131. recessed portion;

[0022] 114, force measuring part; 115, measuring auxiliary part; 1151, limiting part; 116, first driving part; 117, second driving part; 12, image acquisition part; 13, fill light part; 14, pushing component; 15, installation interface; 16, test platform; 161, test station; 162, test cabinet; 163, moving part; 164, limiting part; 165, anti-collision part; 17, supporting part; 171, sliding part; 18, bottom plate;

[0023] 20. Railway relay; 21. Contact group; 211. Moving contact assembly; 2111. Moving contact; 2112. Moving contact connector; 212. Static contact assembly; 2121. Static contact; 2122. Static contact connector; 22. First transmission member; 23. Second transmission member; 231. Transmission body; 232. Limiting group; 2321. Limiting member;

[0024] 25. Stop member; 251. Stop element; 252. Stop connector.

[0025] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding. DETAILED DESCRIPTION

[0026] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0027] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0028] An embodiment of the present application provides a testing device for a railway relay.

[0029] See also Figures 1 to 3The railway relay 20 includes a plurality of contact groups 21, each contact group 21 includes: a moving contact assembly 211 and two static contact assemblies 212 respectively arranged on both sides of the moving contact assembly 211, the moving contact assembly 211 includes a moving contact connector 2112 and a moving contact 2111 arranged on the moving contact connector 2112, the static contact assembly 212 includes a static contact connector 2122 and a static contact 2121 arranged on the static contact connector 2122, and the moving contact assembly 211 is arranged so that the moving contact 2111 can move relative to the static contact assembly 212, so that the moving contact 2111 can contact with a static contact 2121 to form an electrical signal.

[0030] See also Figure 8 The test device 10 may include an electrical signal detection component 101, a determination component 102 and a force application and measurement component 11. The electrical signal detection component 101 is used to detect electrical signals. The force application and measurement component 11 is configured to apply a force moving in a direction away from the moving contact 2111 to the corresponding static contact connector 2122 when the moving contact 2111 contacts a static contact 2121 and measure the magnitude of the force until the static contact connector 2122 undergoes elastic deformation so that the static contact 2121 is separated from the moving contact 2111. The determination component 102 is used to determine the force when the static contact 2121 is separated from the moving contact 2111 based on the electrical signal detected by the electrical signal detection component 101 and the magnitude of the force measured by the force application and measurement component 11.

[0031] The test device provided in the embodiment of the present application can measure the force when the static contact 2121 and the moving contact 2111 of the railway relay 20 are separated by setting an electrical signal detection component 101, a determination component 102 and a force application and measurement component 11, thereby determining the contact pressure.

[0032] In some embodiments, the determination member 102 is used to determine whether the moving contact 2111 is in contact with the static contact 2121 based on the electrical signal, determine the timing of the separation of the static contact 2121 from the moving contact 2111, and thus determine the force when the static contact 2121 and the moving contact 2111 separate.

[0033] The force application and measurement component 11 can continuously measure the magnitude of the force applied to the static contact connector 2122. It is easy to understand that when the static contact 2121 contacts the moving contact 2111, the electrical signal detection component 101 can detect the electrical signal. When the static contact 2121 is separated from the moving contact 2111, the electrical signal detection component 101 detects that the electrical signal disappears. The determination component 102 continuously receives the detection result of the electrical signal detection component 101, and when the electrical signal disappears, it is determined that this is the time when the static contact 2121 and the moving contact 2111 are separated, so that the magnitude of the force measured by the force application and measurement component 11 at the corresponding moment is used as the force when the static contact 2121 and the moving contact 2111 are separated.

[0034] Compared with manual measurement, the embodiment of the present application determines the timing of separation of the static contact 2121 and the moving contact 2111 by the determination member 102 through the presence or absence of an electrical signal, and can more accurately measure the force at the moment of separation of the static contact 2121 and the moving contact 2111, thereby more accurately determining the contact pressure.

[0035] The multiple contact groups 21 of the railway relay 20 are symmetrically distributed in two rows. Figure 1 In some embodiments, the number of the force applying and measuring components 11 can be two, and the two force applying and measuring components 11 can be symmetrically arranged. In some embodiments, the two force applying and measuring components 11 can work simultaneously to perform contact pressure tests on two columns of contact groups 21 of the railway relay 20 at the same time.

[0036] See also Figure 1 and Figure 2 In some embodiments, the force application and measurement assembly 11 may include a force applying member 113, a first moving member 112, a second moving member 111, and a force measuring member 114. The force applying member 113 is used to apply a force to the static contact connection member 2122 of the corresponding static contact assembly 212 in a direction away from the moving contact 2111; the first moving member 112 is used to drive the force applying member 113 to move to a position between the moving contact connection member 2112 and the corresponding static contact connection member 2122; the second moving member 111 is used to drive the force applying member 113 to move in a direction close to the static contact connection member 2122, so that the force applying member 113 applies a force to the static contact connection member 2122, thereby separating the static contact 2121 from the moving contact 2111. The force measuring member 114 is used to measure the magnitude of the force applied by the force applying member 113 to the static contact connection member 2122.

[0037] The force measuring member 114 can continuously measure the magnitude of the force applied by the force applying member 113. It is easy to understand that when the static contact 2121 contacts the moving contact 2111, the electric signal monitoring member can detect the electric signal. When the static contact 2121 separates from the moving contact 2111, the electric signal monitoring member detects that the electric signal disappears. The determining member 102 continuously receives the detection result of the electric signal monitoring member, and when the electric signal disappears, it is determined that this is the time when the static contact 2121 separates from the moving contact 2111.

[0038] See also Figure 3 In some embodiments, when the force applying member 113 contacts the static contact connector 2122, the force applying member 113 faces the static contact 2121, so that the measured contact pressure is more accurate.

[0039] In some embodiments, a recess 1131 is formed at one end of the force-applying member 113 that contacts the static contact connector 2122 , and the recess 1131 is contoured to match the static contact 2121 to increase the contact area between the force-applying member 113 and the static contact connector 2122 , thereby facilitating application of force to the static contact connector 2122 .

[0040] The first moving member 112 can drive the force applying member 113 to move in a direction parallel to the movable contact connecting member 2112. The second moving member 111 can drive the force applying member 113 to move in a direction in which each column of the contact group 21 is arranged.

[0041] In some embodiments, the second moving member 111 is further configured to drive the force applying member 113 to move to a height between the moving contact connecting member 2112 and the corresponding static contact connecting member 2122 of different contact groups 21. In this way, the contact pressure test of each contact group 21 can be implemented through the first moving member 112 and the second moving member 111.

[0042] See also Figure 1 In some embodiments, the testing device 10 may further include a support member 17 , the second moving member 111 may be able to move vertically relative to the support member 17 , and the first moving member 112 may be able to move horizontally relative to the second moving member 111 .

[0043] See also Figure 1 In some embodiments, the support member 17 is provided with a sliding member 171. In some embodiments, the second moving member 111 may include a second body 1111 and a second body sliding fitting member. The second body 1111 is fixedly connected to the second body sliding fitting member; through the sliding fitting of the second body sliding fitting member and the sliding member 171, the second body 1111 can move along the direction in which the sliding member 171 extends. In some embodiments, the sliding member 171 may be a slide rail, and the extending direction of the sliding member 171 may be vertical; the second body sliding fitting member may be a slider.

[0044] See also Figure 1 In some embodiments, the first moving member 112 may include a first body 1121 and a first sliding member 1122. The second body 1111 is provided with a second sliding fitting member 1112.

[0045] The first body 1121 is fixedly connected to the first sliding member 1122; through the sliding cooperation between the first sliding member 1122 and the second sliding fitting member 1112, the first body 1121 can move along the extending direction of the second sliding fitting member 1112. In some embodiments, the second sliding fitting member 1112 can be a slide rail, and its extending direction can be horizontal; the first sliding member 1122 can be a slider.

[0046] See also Figure 1 In some embodiments, the force application and measurement component 11 may further include a first driving member 116 and a second driving member 117, which are respectively used to drive the second body 1111 to move relative to the sliding member 171 and drive the first body 1121 to move along the second sliding fitting member 1112.

[0047] See also Figure 8 In some embodiments, the testing device 10 may include a control member 103 for controlling the first driving member 116 and the second driving member 117, thereby controlling the movement of the first moving member 112 and the second moving member 111 to achieve automatic measurement of the contact pressure of each contact group 21. For example, the second moving member 111 can be controlled to move the force-applying member 113 to the position corresponding to the uppermost contact group, and then the first moving member 112 can be controlled to move the force-applying member 113 toward the position of the contact group, so that the force-applying member 113 is located between the moving contact connector 2112 and the static contact connector 2122 corresponding to the static contact 2121 in contact with the moving contact 2111; then the second moving member 111 can be controlled to drive the force-applying member 113 to move in the direction approaching the static contact connector 2122, so that the force-applying member 113 applies a force to the static contact connector 2122, thereby separating the static contact 2121 from the moving contact 2111, and measuring the force when the static contact 2121 is separated from the moving contact 2111. Afterwards, the first moving member 112 is controlled to move the force member 113 away from the contact group, and the second moving member 111 is controlled to move the force member 113 downward to the position corresponding to the next upper contact group, and so on, until the contact pressure of the lowest contact group is measured.

[0048] The models of the railway relay 20 are different, and the spacing between the moving contact connector 2112 and the corresponding static contact connector 2122 is different. The control component 103 can determine the distance that the first movable component 112 and the second movable component 111 drive the force-applying component 113 to move according to the model of the railway relay 20, so that the force-applying component 113 can be moved to a position where its height is between the moving contact connector 2112 and the corresponding static contact connector 2122 of different contact groups 21, and can apply force to the static contact connector 2122.

[0049] See also Figure 1 In some embodiments, the force measuring member 114 may be disposed on the first body 1121. In some embodiments, the force applying member 113 may extend in a horizontal direction.

[0050] See also Figure 1 In some embodiments, the force measuring member 114 may be a pressure sensor, and the end of the force applying member 113 away from the static contact connecting member 2122 is connected to the pressure sensor, so that the pressure sensor detects the magnitude of the force applied by the force applying member 113 to the static contact connecting member 2122. In some embodiments, the pressure sensor is provided with threads, and the end of the force applying member 113 away from the static contact connecting member 2122 is also provided with threads, and the force applying member 113 and the pressure sensor are connected by threaded cooperation.

[0051] See also Figure 2 In some embodiments, when the moving contact 2111 is in contact with the static contact 2121, the spacing between the moving contact connector 2112 and the corresponding static contact connector 2122 is less than 2 mm. In some embodiments, in order to enable the force-applying member 113 to move to a position between the moving contact connector 2112 and the corresponding static contact connector 2122, the thickness of the force-applying member 113 may be less than 1.5 mm. The inventors of the present application have found that due to the small thickness of the force-applying member 113, when a force is applied to the static contact connector 2122 in a direction away from the moving contact 2111, the force-applying member 113 will be deformed. The direction of the force applied by the force-applying member 113 to the static contact connector 2122 is the normal direction of the contact portion between the force-applying member 113 and the force measuring member 114. When the force-applying member 113 is deformed, the direction of the force applied by the force-applying member 113 to the static contact connector 2122 will change, resulting in inaccurate force measured by the force measuring member 114.

[0052] To address this problem, in some embodiments, the force applying and measuring assembly 11 may further include a measurement auxiliary member 115, which is connected to the force applying member 113 to prevent deformation of the force applying member 113. In some embodiments, the measurement auxiliary member 115 may be disposed on the first body 1121.

[0053] See also Figure 4 In some embodiments, the first body 1121 may include a vertical plate 11211 and a horizontal plate 11212 that are perpendicular to each other, the vertical plate 11211 is fixedly connected to the first sliding member 1122, the measurement auxiliary member 115 may be arranged on the vertical plate 11211, and the force measuring member 114 may be arranged on the horizontal plate 11212.

[0054] See also Figure 5 and Figure 6 In some embodiments, the measurement auxiliary member 115 may include two position-limiting members 1151 arranged opposite to each other, the position-limiting members 1151 and the surface of the force-applying member 113 are in line contact, and the two position-limiting members 1151 are in close contact with the force-applying member 113 to avoid changes in the position of the position-limiting members 1151 and the force-applying member 113 in line contact. By providing two position-limiting members 1151 to support the force-applying member 113, deformation of the force-applying member 113 can be avoided, thereby improving the accuracy of the force measured by the force measuring member 114.

[0055] In some embodiments, the surface on which the limit member 1151 contacts the force member 113 can be a curved surface, the generatrix of which is perpendicular to the direction of the force applied by the force member 113 and perpendicular to the extension direction of the force member 113, so that the limit member 1151 is in linear contact with the surface of the force member 113 and will not apply force to the force member 113, thereby avoiding affecting the measurement result of the force measuring member 114.

[0056] In some embodiments, the force applying member 113 may be a rod. The surface of the stopper 1151 in contact with the force applying member 113 may be an arc surface.

[0057] See also Figure 1 In some embodiments, the testing device 10 may further include an image acquisition component 12, the image acquisition component 12 is used to acquire an image containing the contact group 21, and the determination component 102 determines the contact gap according to the image.

[0058] See also Figure 3 The railway relay 20 may further include a stopper 25, which includes a plurality of stopper elements 251 and a stopper connector 252 for connecting the plurality of stopper elements 251. The plurality of stopper elements 251 are symmetrically formed on both sides of the stopper connector 252. A stopper element 251 is provided between the moving contact connector 2112 and the static contact connector 2122, and is used to prevent the static contact connector 2122 where the other static contact 2121 is located from moving toward the moving contact connector 2112 when the moving contact 2111 contacts one static contact 2121.

[0059] In some embodiments, the determination component 102 may also determine the stop gap based on an image containing the contact point group 21 captured by the image capture component 12 .

[0060] See also Figure 3 In some embodiments, a static contact 2121 is provided on both sides of the moving contact 2111 (for the sake of distinction, they are respectively referred to as the first static contact and the second static contact). A stop element 251 is provided between the moving contact 2111 and the first static contact 2121 and the second static contact 2121 (for the sake of distinction, the stop element 251 between the moving contact 2111 and the first static contact 2121 is the first stop element 251, and the stop element 251 between the moving contact 2111 and the second static contact 2121 is the second stop element 251). When the moving contact 2111 contacts the first static contact 2121, the second stop element 251 contacts the second static contact 2121, the gap between the first stop element 251 and the first static contact 2121 is the stop gap, and the gap between the second static contact 2121 and the moving contact 2111 is the contact gap.

[0061] In some embodiments, the control component 103 can control the image acquisition component 12 to acquire images including the contact group 21 at different times, and the determination component 102 calculates the contact gap and the stop gap through algorithm analysis based on the images including the contact group 21. The determination component 102 can record the calculated contact gap and stop gap in real time, obtain the gap measurement and the complete change process record, and realize the gap measurement.

[0062] See also Figure 1 In some embodiments, the image acquisition member 12 may be disposed on the second moving member 111, so that the second moving member 111 drives the image acquisition member 12 to move to a position facing the contact group 21 at different heights, so as to ensure that the contact gap determined based on the image captured by the image acquisition member 12 is accurate. In some embodiments, during the process of measuring the contact pressure, when the second moving member 111 drives the image acquisition member 12 to move to a position facing the contact group 21 at different heights, the image captured by the image acquisition member 12 may be used.

[0063] See also Figure 1 In some embodiments, the testing device 10 may further include a fill light component 13 , which is used to supplement light for the image acquisition component 12 to improve the quality of pictures captured by the image acquisition component 12 .

[0064] See also Figure 2 and Figure 3 In some embodiments, the railway relay 20 also includes a first transmission member 22 and a second transmission member 23, and the second transmission member 23 is connected to the moving contact connecting member 2112. When the first transmission member 22 moves, it can drive the second transmission member 23 to move, thereby driving the moving contact 2111 to move toward the static contact 2121.

[0065] In some embodiments, the second transmission member 23 includes: a transmission body 231 and a plurality of limit groups 232 formed on the transmission body 231, and the plurality of limit groups 232 are symmetrically formed on both sides of the transmission body 231. Each limit group 232 includes two limit members 2321 arranged opposite to each other, and the moving contact connecting member 2112 is clamped by the two limit members 2321. When the second transmission member 23 moves, the two limit members 2321 drive the moving contact connecting member 2112 to move.

[0066] See also Figure 1 In some embodiments, the testing device 10 may further include a pushing assembly 14 , and the pushing assembly 14 is configured to push the first transmission member 22 by increasing its length to move the first transmission member 22 .

[0067] The control member 103 can be used to control the pushing assembly 14 .

[0068] See also Figure 1 In some embodiments, the pushing assembly 14 can switch the state of the railway relay 20 when the railway relay 20 is not powered. In some embodiments, the pushing assembly 14 can include a guide rail slide and a push rod, and the push rod can reciprocate on the guide rail slide to push or leave the first transmission member 22, thereby switching the state of the railway relay 20.

[0069] In some embodiments, the determining member 102 can also be used to determine the timing of the static contact 2121 and the moving contact 2111 contacting according to the electrical signal, thereby determining the contact alignment of the railway relay 20 according to the increased length of the pushing assembly 14 and the timing of each moving contact 2111 contacting or separating from the static contact 2121. The contact alignment is the distance difference between the groups of contacts of the railway relay 20 that are simultaneously in contact or disconnected. Specifically, the length of the pushing assembly 14 continues to increase. As the length increases, the groups of contacts of the railway relay 20 are triggered in sequence. When the last group of contacts is triggered, the determining member 102 obtains the increased length of the pushing assembly 14 according to the length of the pushing assembly 14 when the first group of contacts is triggered and the length of the pushing assembly 14 when the last group of contacts is triggered, and determines the distance moved by the second transmission member 23 according to the length, thereby calculating the contact alignment.

[0070] In some embodiments, the railway relay 20 may further include an electrical interface for outputting a corresponding electrical signal to the outside when each moving contact 2111 contacts a static contact 2121. Figure 1In some embodiments, the test device 10 may further include an installation interface 15, and the electrical signal detection component 101 is electrically connected to the electrical interface through the installation interface 15. The two force applying and measuring components 11 may be symmetrically arranged on both sides of the installation interface 15. The pushing component 14 may be arranged facing the installation interface 15, so as to facilitate the performance test of the railway relay 20 installed on the installation interface 15.

[0071] See also Figure 1 In some embodiments, the testing device 10 may further include a bottom plate 18, and the support member 17 and the pushing component 14 may be disposed on the bottom plate 18. The force applying and measuring component 11, the pushing component 14, the support member 17, the bottom plate 18, the mounting interface 15, the image acquisition component 12, and the fill light component 13 may be assembled together to form a measuring module.

[0072] See also Figure 7 In some embodiments, the test device 10 may further include a test platform 16, and the electrical signal detection component 101 and the determination component 102 may be disposed on the test platform 16. The measurement module may be detachably mounted on the test platform 16. The test platform 16 may form a plurality of test stations 161, and each test station 161 may be equipped with a measurement module. The test platform 16 may be used to provide a space for testing a plurality of railway relays 20 to improve the test efficiency. When testing a plurality of railway relays 20, all the measurement modules may be placed in the test station 161 first. To ensure the accuracy of the measurement results, the test of the corresponding railway relay 20 by one measurement module may be completed before the test of the next railway relay 20 is performed.

[0073] In some embodiments, the test platform 16 may include a test cabinet 162 , and the electrical signal detection component 101 and the determination component 102 may be disposed in the test cabinet 162 .

[0074] In some embodiments, the test platform 16 may include a plurality of moving parts 163 for moving the bottom plate 18 of the measurement module toward a test cabinet 162 close to a side of the test station 161 .

[0075] In some embodiments, the bottom plate 18 may be placed between two adjacent moving parts 163. In some embodiments, each moving part 163 may include a plurality of rollers, and the bottom plate 18 may be placed on the rollers.

[0076] In some embodiments, the test platform 16 may further include a plurality of limiting portions 164, which are disposed outside the two moving portions 163 to limit the movement of the bottom plate 18 in directions other than the extending direction of the moving portions 163. In some embodiments, the limiting portions 164 may form limiting slide grooves, and the two ends of the bottom plate 18 are in the two limiting slide grooves.

[0077] In some embodiments, an anti-collision portion 165 is formed on one side of the test cabinet 162 facing the support member 17 to prevent the test cabinet 162 and the support member 17 from colliding and causing damage to the test cabinet 162 or the support member 17 .

[0078] In some embodiments, the control component 103 can control other components including the force application and measurement component 11, the push rod component, etc., and the determination component 102 can collect various data during the test process, such as the force measured by the force measurement component 114, and the image containing the contact group 21 captured by the image acquisition component 12, and can perform and process the collected data to obtain a test report of the railway relay 20.

[0079] In some embodiments, electrical parameters and time parameters can be measured by the control component 103 and the determination component 102, wherein the electrical parameters and time parameters are measured according to a maximum of 8 groups. In some embodiments, the control component 103 may include a channel switching module and a controllable power supply. During the test, the test is performed according to the type of the railway relay 20. During the test, the controllable power supply provides the corresponding power supply according to the test requirements of different relays, and the power supply set path required for the test is switched through the channel switching module. The determination component 102 may include a data acquisition module for collecting and recording the measured electrical parameters.

[0080] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0081] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A test device for a railway relay, the railway relay comprising a plurality of contact groups, Each of the contact groups comprises: a moving contact assembly and two static contact assemblies respectively arranged on both sides of the moving contact assembly, the moving contact assembly comprises a moving contact connector and a moving contact arranged on the moving contact connector, the static contact assembly comprises a static contact connector and a static contact arranged on the static contact connector, the moving contact assembly is arranged so that the moving contact can move relative to the static contact assembly, so that the moving contact can contact with one of the static contacts to form an electrical signal; It is characterized in that The device comprises: An electrical signal detection element, used for detecting the electrical signal; a force applying and measuring assembly, configured to apply a force moving in a direction away from the moving contact to the corresponding static contact connector when the moving contact contacts one of the static contacts, and measure the magnitude of the force until the static contact connector is elastically deformed so that the static contact is separated from the moving contact; A determination component is used to determine the force when the static contact is separated from the moving contact based on the electrical signal detected by the electrical signal detection component and the force measured by the force application and measurement component.

2. The device according to claim 1, It is characterized in that The force application and measurement assembly comprises: A force applying member, used for applying a force to the static contact connecting member of the corresponding static contact assembly moving in a direction away from the movable contact; A first moving member, used for driving the force applying member to move to a position between the moving contact connecting member and the corresponding static contact connecting member; A second moving member is used to drive the force applying member to move in a direction close to the static contact connecting member, so that the force applying member applies the force to the static contact connecting member; The force measuring member is used to measure the magnitude of the force applied by the force applying member to the static contact connecting member.

3. The device according to claim 2, It is characterized in that The force measuring member is a pressure sensor, The end of the force-applying member away from the static contact connecting member is connected to the pressure sensor, so that the pressure sensor can detect the magnitude of the force applied by the force-applying member to the static contact connecting member.

4. The device according to claim 2, It is characterized in that The force application and measurement assembly also includes: The measuring auxiliary member is connected to the force applying member to prevent the force applying member from being deformed.

5. The device according to claim 4, It is characterized in that The measurement auxiliary member includes two limiting members arranged opposite to each other, the limiting members are in line contact with the surface of the force applying member, and the two limiting members are in close contact with the force applying member to avoid changes in the positions of the limiting members in line contact with the force applying member.

6. The device according to claim 2, It is characterized in that Also includes: An image acquisition component, used for acquiring an image containing the contact point group; The determining component determines the joint gap based on the image.

7. The device according to claim 6, It is characterized in that The image acquisition component is arranged on the second moving component, so that the second moving component drives the image acquisition component to move to a position facing the contact point groups at different heights.

8. The device according to claim 6, It is characterized in that Also includes: A fill light component is used to supplement light for the image acquisition component.

9. The device according to claim 1, It is characterized in that The railway relay further comprises a first transmission member and a second transmission member, wherein the second transmission member is connected to the moving contact connecting member, and when the first transmission member moves, the second transmission member can be driven to move, thereby driving the moving contact to move in the direction of the static contact; The device also includes: a pushing assembly, configured to push the first transmission member by increasing its length to move the first transmission member, The determining member is also used to determine the timing of the static contact and the moving contact according to the electrical signal, thereby determining the contact alignment of the railway relay according to the increased length of the pushing component and the timing of each moving contact and the static contact.

10. The device according to claim 1, It is characterized in that The railway relay also includes an electrical interface for outputting a corresponding electrical signal to the outside when each of the moving contacts contacts one of the static contacts; The device also includes: The electrical signal detection component is electrically connected to the electrical interface via the mounting interface.

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