Railway turnout switch machine contact life test board and test method

Abstract

The present application relates to railway turnout conversion equipment field, disclose a kind of railway turnout switch machine contact life test bench and test method, including power output device, at least one group cam driving device and contact action conversion device.Cam driving device is arranged in one end of power output device, cam driving device includes cam and two connecting plates arranged in the two sides of cam, cam is drivingly connected with power transmission device, cam is used to drive two connecting plates to reciprocate.Each group of contact action conversion device connects a connecting plate and a turnout switch machine contact, each group of contact action conversion device connects different connecting plate and turnout switch machine contact, contact action conversion device is used to be switched on-off under the driving of cam and connecting plate to turnout switch machine contact is converted.The present application can simultaneously carry out automatic life test to multiple turnout switch machine contacts, enhance the degree of automation of test, improve the test efficiency of multiple turnout switch machine contacts, and enrich the test function.

Description

Technical Field

[0001] This invention relates to the field of railway turnout switching equipment, and more particularly to a test bench and test method for the life of railway turnout switch machine contacts. Background Technology

[0002] With the development of science and technology, railway operation technology is constantly improving.

[0003] The turnout switch machine is the actuator for switching railway turnouts. Its main functions are to change the position of the turnout, lock the turnout switch rail, and reflect the position status of the turnout. The contacts in the turnout switch machine are crucial components for realizing electrical control and signal transmission. The reliable operation of these contacts is essential for ensuring the normal operation of the railway signaling system. During long-term use, contacts are affected by mechanical wear, arc erosion, and other factors, leading to poor contact, accelerated wear, and even failure, thus causing signal malfunctions and seriously threatening railway traffic safety. Therefore, conducting life tests on the contacts of the turnout switch machine to evaluate their reliability and service life is of great significance for improving the safety and reliability of the railway signaling system.

[0004] Some equipment for life testing of turnout switch machine contacts has been developed in related technologies, but these devices are limited in function, can only test one turnout switch machine contact, and have a low degree of automation. Summary of the Invention

[0005] This invention provides a railway turnout switch machine contact life test bench and test method to solve the shortcomings of related technologies in railway turnout switch machine contact life test equipment, which has limited functions, can only test one turnout switch machine contact, and has a low degree of automation. This invention can test multiple turnout switch machine contacts simultaneously, has a high degree of automation, and has rich equipment functions.

[0006] In a first aspect, the present invention provides a railway turnout switch contact life test bench, comprising: Power take-off device; At least one set of cam drive devices are arranged at both ends of the power output device; the cam drive device includes a cam and two connecting plates disposed on both sides of the cam, the cam is connected to the power transmission device, and the cam is used to drive the two connecting plates to reciprocate; At least one set of contact action conversion devices, each set of contact action conversion devices is connected to one of the connecting plates and one turnout switch machine contact, and each set of contact action conversion devices is connected to different connecting plates and turnout switch machine contacts. The contact action conversion devices are used to switch the turnout switch machine contacts on and off under the drive of the cam and the connecting plate.

[0007] Optionally, the power output device includes a drive motor, a motor mounting plate, a first gear, a second gear, a third gear, a first transmission shaft, a first mounting plate, a second mounting plate, a fourth gear, a fifth gear, and a second transmission shaft; The drive motor is fixedly mounted on the motor mounting plate; The drive motor is connected to the first drive shaft via the first gear, the second gear and the third gear, and the first drive shaft is supported and positioned by the first mounting plate. The first drive shaft is connected to the second drive shaft via the fourth gear and the fifth gear, and the second drive shaft is supported and positioned by the second mounting plate.

[0008] Optionally, the first drive shaft is driven to a cam in one of the cam drive devices, and the second drive shaft is driven to a cam in another of the cam drive devices.

[0009] Optionally, the contact action conversion device includes a mounting base, a contact mounting plate, a left locking block, a right locking block, a cover plate, a sliding plate, a cam follower bearing, a guide sleeve, and a spring; The left locking block and the right locking block are assembled inside the cavity formed by the mounting base and the contact mounting plate; The cover plate is fixed to the contact mounting plate and is used to limit the reciprocating stroke of the left locking block and the right locking block; the sliding plate is arranged between the sliding contact surfaces of the locking blocks. The cam follower bearing is assembled at the end of the connecting plate; the guide sleeve and the spring are arranged in conjunction between the tail end of the locking block and the cavity.

[0010] Optionally, the railway turnout switch contact life test bench also includes a load table, a control cabinet, a power supply module, a data acquisition module, and a control module; The power output device, each set of the cam drive device and the contact action device are all arranged inside the load platform; The power module, the data acquisition module, and the control module are all located inside the control cabinet; The power module is connected to the power output device and is used to provide power to the power output device; The data acquisition module is connected to the power output device, the cam drive device, and the contact action conversion device; The control module is connected to the power output device.

[0011] Optionally, the railway turnout switch contact life test bench also includes: The display operation unit is used to realize human-computer interaction.

[0012] Secondly, the present invention provides a method for testing the lifespan of railway turnout switch machine contacts, applied to a railway turnout switch machine contact lifespan testing bench as described in the first aspect or any corresponding embodiment above, wherein the railway turnout switch machine contact lifespan testing bench includes a power output device, at least one set of cam drive devices, and at least one set of contact action conversion devices; the method includes: Connect one turnout switch machine contact to be tested to each of the aforementioned contact action conversion devices; In response to the contact test command, the power output device is activated so that the power output device drives each turnout switch contact to switch on and off via each of the cam drive devices and each of the node action conversion devices.

[0013] The present invention provides a railway turnout switch machine contact life test bench and test method, comprising a power output device, at least one set of cam drive devices, and a contact action conversion device. The cam drive device is arranged at one end of the power output device and includes a cam and two connecting plates disposed on both sides of the cam. The cam is driven by the power transmission device and drives the two connecting plates to reciprocate. Each set of contact action conversion devices connects one connecting plate and one turnout switch machine contact. Different sets of contact action conversion devices connect different connecting plates and turnout switch machine contacts. The contact action conversion device is used to switch the turnout switch machine contacts on and off under the drive of the cam and connecting plates. This invention can simultaneously perform automated life testing on multiple turnout switch machine contacts, enhancing the degree of automation, improving the testing efficiency for multiple turnout switch machine contacts, and enriching the testing functions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this invention or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a railway turnout switch machine contact life test bench provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a power output device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a cam drive device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a contact action conversion device provided in an embodiment of the present invention; Figure 5This is a schematic diagram of the structure of a contact mounting plate provided in an embodiment of the present invention; Figure 6 A flowchart of a method for testing the lifespan of railway turnout switch contacts, provided as an embodiment of the present invention.

[0016] Figure labels; 1-Power output device, 2-Cam drive device, 3-Contact action conversion device, 4-Drive motor, 5-Motor mounting plate, 6-First gear, 7-Second gear, 8-Third gear, 9-First transmission shaft, 10-First transmission shaft mounting plate, 11-Second transmission shaft mounting plate, 12-Fourth gear, 13-Fifth gear, 14-Second transmission shaft, 15-First cam, 16-Second cam, 17-Second transmission shaft, 18-Cam, 19-First connecting plate, 20-Second connecting plate, 21-Mounting base, 22-Contact mounting plate, 23-Left locking block, 24-Right locking block, 25-Cover plate, 26-Slide plate, 27-Connecting plate, 28-Cam follower bearing, 29-Guide sleeve, 30-Spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0018] The following is combined Figures 1-5 The present invention describes a railway turnout switch contact life test bench.

[0019] like Figure 1 As shown, this embodiment proposes a railway turnout switch machine contact life test bench, which includes: Power take-off device 1; At least one set of cam drive devices 2 are arranged at both ends of the power output device 1; the cam drive device 2 includes a cam and two connecting plates arranged on both sides of the cam, the cam is connected to the power transmission device for transmission, and the cam is used to drive the two connecting plates to reciprocate. At least one set of contact action conversion device 3, each set of contact action conversion device 3 is connected to a connecting plate and a turnout switch machine contact, and each set of contact action conversion device 3 is connected to different connecting plates and turnout switch machine contacts. The contact action conversion device 3 is used to switch the turnout switch machine contacts on and off under the drive of the cam and the connecting plate.

[0020] Specifically, the railway turnout switch machine contact life test bench consists of three main parts: a power output device 1, a cam drive device 2, and a contact action conversion device 3. The power output device 1 serves as the power source for the entire machine, synchronously transmitting rotational power to the cam drive devices 2 on both sides via a gear transmission mechanism. The cam drive devices 2 periodically push the actuators against the cam profile, driving the contact action conversion device 3 to complete reciprocating switching actions, thereby simulating the on-site switching conditions of the switch machine contacts and conducting durability life tests.

[0021] like Figure 2 As shown, the power output device 1 includes a drive motor 4, a motor mounting plate 5, a first gear 6, a second gear 7, a third gear 8, a first transmission shaft 9, a first mounting plate, a second mounting plate, a fourth gear 12, a fifth gear 13, and a second transmission shaft 14. The drive motor 4 is fixedly mounted on the motor mounting plate 5; The drive motor 4 is connected to the first drive shaft 9 via the first gear 6, the second gear 7 and the third gear 8. The first drive shaft 9 is supported and positioned by the first mounting plate. The first drive shaft 9 is connected to the second drive shaft 14 via the fourth gear 12 and the fifth gear 13. The second drive shaft 14 is supported and positioned by the second mounting plate.

[0022] The second drive shaft 14 is connected to the cams of the two sets of cam drive devices 2: the first drive shaft 9, the cam drive device 2, and the second drive shaft 14.

[0023] Specifically, the drive motor 4 is fixedly mounted on the motor mounting plate 5, serving as the unified power source for the entire testing mechanism. The motor output torque is transmitted sequentially to the first drive shaft 9 through the meshing of the first gear 6, the second gear 7, and the third gear 8. The first drive shaft 9 is supported and positioned by the first drive shaft 9 mounting plate, and then the power is split and transmitted to the second drive shaft 14 through a gear pair composed of the fourth gear 12 and the fifth gear 13. The second drive shaft 14 is mounted and supported by the second drive shaft 14 mounting plate 11. The first drive shaft 9 and the second drive shaft 14 rotate synchronously. The shaft ends of the second drive shaft 14 are respectively fixed to the first cam 15 and the second cam 16. The two sets of cams synchronously output reciprocating drive actions, respectively engaging with the drive contact action conversion device 3. The entire transmission system only requires a single drive motor 4 to input power, which can synchronously drive four stations to conduct contact durability life tests, significantly improving the efficiency of contact test verification.

[0024] like Figure 3 The cam drive device 2 shown has a cam 18 that is specially designed for the trial operation of the switch machine. The second drive shaft 17 transmits power to the cam 18, which drives the first connecting plate 19 and the second connecting plate 20 on both sides to reciprocate.

[0025] like Figure 4 The contact action conversion device 3 shown includes a mounting base 21, a contact mounting plate 22, a left locking block 23, a right locking block 24, a cover plate 25, a sliding plate 26, a cam follower bearing 28, a guide sleeve 29, and a spring 30. The left locking block 23 and the right locking block 24 are assembled inside the cavity formed by the mounting base 21 and the contact mounting plate 22; The cover plate 25 is fixed on the contact mounting plate 22 and is used to limit the reciprocating stroke of the left locking block 23 and the right locking block 24; the sliding plate 26 is arranged between the sliding contact surfaces of the locking blocks. The cam follower bearing 28 is assembled at the end of the connecting plate 27; the guide sleeve 29 and the spring 30 are arranged in a matching manner between the tail end of the locking block and the cavity.

[0026] Among them, the sliding plate 26 is made of polytetrafluoroethylene to reduce the sliding friction resistance during the reciprocating sliding of the locking block.

[0027] It should be noted that the left and right locking blocks 24 are assembled inside the cavity formed by the mounting base 21 and the contact mounting plate 22; the cover plate 25 is fixed above the contact mounting plate 22, which limits and constrains the reciprocating stroke of the left and right locking blocks 24. The sliding plate 26 is made of polytetrafluoroethylene and is arranged between the sliding contact surfaces of the locking blocks. It can achieve self-lubrication during the reciprocating sliding of the locking blocks, reducing sliding friction resistance.

[0028] Specifically, the cam follower bearing 28 is mounted on the end of the connecting plate 27 and can move synchronously along the contour trajectory of the drive cam; the guide sleeve 29 and the spring 30 are arranged in a matching manner between the tail end of the locking block and the cavity. When the cam protrusion pushes the cam follower bearing 28 and drives the connecting plate 27 to retract towards the mounting base 21, the internal spring 30 is simultaneously compressed and stores energy; when the cam profile rotates past the protrusion section, the spring 30 releases the preload force and pushes the connecting plate 27 back to reset, so that the cam follower bearing 28 is in close contact with the cam profile throughout the entire process, ensuring synchronous action conversion and gapless disengagement, accurately driving the locking block to complete the switching action, and realizing reliable on / off switching of the turnout position contact.

[0029] Optionally, the contact mounting plate 22 can be adapted to mechanical interfaces with different types of contacts. Dimensions are as follows: Figure 5 As shown.

[0030] If simulated field conditions are used for testing, the contact life testing equipment in related technologies would take 4.75 months to test one set of contacts (millions of cycles). The railway turnout switch machine contact life testing bench of this embodiment can complete the testing of 4 sets of contacts in 4.75 months, saving time and costs.

[0031] The railway turnout switch machine contact life test bench proposed in this embodiment includes a power output device 1, at least one set of cam drive devices 2, and at least one set of contact action conversion devices 3. All cam drive devices 2 are arranged at both ends of the power output device 1. Each cam drive device 2 includes a cam and two connecting plates disposed on both sides of the cam. The cam is connected to the power transmission device and drives the two connecting plates to reciprocate. Each set of contact action conversion devices 3 connects one connecting plate and one turnout switch machine contact. Different connecting plates and turnout switch machine contacts are connected to different contact action conversion devices 3. The contact action conversion devices 3 are used to switch the turnout switch machine contacts on and off under the drive of the cam and connecting plates. This embodiment can simultaneously perform automated life testing on multiple turnout switch machine contacts, improving testing efficiency for multiple turnout switch machine contacts while enhancing the degree of testing automation, saving testing time, and enriching testing functions.

[0032] based on Figure 1 This embodiment proposes a second railway turnout switch contact life test bench, which also includes a load table.

[0033] The power output device 1, each cam drive device 2, and the contact action device are all arranged inside the load table.

[0034] Specifically, the load table is the actuator of the railway turnout switch machine contact life test bench, which is mainly equipped with a power output device 1, a cam drive device 2 and a contact action conversion device 3.

[0035] Optionally, the railway turnout switch machine contact life test bench also includes a control cabinet, a power supply module, a data acquisition module, and a control module; The power supply module, data acquisition module, and control module are all housed inside the control cabinet; The power module is connected to the power output device 1 and is used to provide power to the power output device 1; The data acquisition module is connected to the power output device 1, the cam drive device 2, and the contact action conversion device 3; The control module is connected to the power output device 1.

[0036] It should be noted that the power supply module, data acquisition module, and programmable logic controller (PLC) control module required for the railway turnout switch machine contact life test bench are all installed in the control cabinet.

[0037] Optionally, the railway turnout switch machine contact life test bench also includes: The display operation unit is used to realize human-computer interaction.

[0038] Specifically, the display operation unit is the human-machine interaction and data monitoring terminal of the railway turnout switch machine contact life test bench, which is the operation center and data visualization center of the entire test bench.

[0039] In the other railway turnout switch machine contact life test bench proposed in this embodiment, the circuit of the railway turnout switch machine contact life test bench can be a three-phase five-wire AC380V 50Hz system, with resistance measurement of 0~2000mΩ and current measurement of 0~20.000A. It realizes four core functions: contact on / off simulation, parameter acquisition, load simulation, and fault protection. The circuit is divided into four parts: main power supply circuit, load simulation circuit, signal acquisition circuit, and control protection circuit. It is compatible with different types of contact testing such as TS-1C, ASJ-C, TKZ-01, and Sartbao, and can accommodate both manual debugging and PLC intelligent control.

[0040] like Figure 6 As shown, this embodiment proposes a method for testing the lifespan of railway turnout switch machine contacts, applicable to any of the aforementioned railway turnout switch machine contact lifespan test benches. The railway turnout switch machine contact lifespan test bench includes a power output device 1, at least one set of cam drive devices 2, and at least one set of contact action conversion devices 3. The method includes: S601. Connect one turnout switch contact to be tested to each group of contact action conversion devices.

[0041] Specifically, the cam drive device 2 is arranged at both ends of the power output device 1; the cam drive device 2 includes a cam and two connecting plates arranged on both sides of the cam. The cam is connected to the power transmission device for transmission, and the cam is used to drive the two connecting plates to reciprocate.

[0042] Specifically, each set of contact action conversion device 3 is connected to a connecting plate and a turnout switch machine contact. Each set of contact action conversion device 3 is connected to different connecting plates and turnout switch machine contacts. The contact action conversion device 3 is used to switch the turnout switch machine contacts on and off under the drive of the cam and the connecting plate.

[0043] It should be noted that the power output device 1, as the power source of the whole machine, synchronously transmits the rotational power to the two cam drive devices 2 through the gear transmission mechanism. The cam drive device 2 relies on the cam profile to periodically push the actuator, driving the contact action conversion device 3 to complete the reciprocating switching action, thereby simulating the on-site on-off working conditions of the switch machine contact and carrying out durability life test.

[0044] S602. In response to the contact test command, the power output device is activated so that the power output device drives each turnout switch contact to switch on and off through each cam drive device and each node action conversion device respectively.

[0045] If simulated field conditions are used for testing, the contact life testing equipment in related technologies would take 4.75 months to test one set of contacts (millions of times). The railway turnout switch machine contact life testing bench of this embodiment can complete the testing of 4 sets of contacts in 4.75 months, effectively saving time and costs.

[0046] The railway turnout switch machine contact life testing method proposed in this embodiment is applied to any of the aforementioned railway turnout switch machine contact life testing benches. The railway turnout switch machine contact life testing bench includes a power output device 1, at least one set of cam drive devices 2, and at least one set of contact action conversion devices 3. All cam drive devices 2 are arranged at both ends of the power output device 1. Each cam drive device 2 includes a cam and two connecting plates disposed on both sides of the cam. The cam is connected to the power transmission device and drives the two connecting plates to reciprocate. Each set of contact action conversion devices 3 connects one connecting plate and one turnout switch machine contact. Each set of contact action conversion devices 3 connects different connecting plates and turnout switch machine contacts. The contact action conversion devices 3 are used to switch the turnout switch machine contacts on and off under the drive of the cam and connecting plates. This embodiment can simultaneously perform automated life testing on multiple turnout switch machine contacts, improving the testing efficiency for multiple turnout switch machine contacts while enhancing the degree of testing automation, saving testing time, and enriching testing functions.

[0047] In the other railway turnout switch contact life test method proposed in this embodiment, the power output device 1 includes a drive motor 4, a motor mounting plate 5, a first gear 6, a second gear 7, a third gear 8, a first transmission shaft 9, a first mounting plate, a second mounting plate, a fourth gear 12, a fifth gear 13, and a second transmission shaft 14. The drive motor 4 is fixedly mounted on the motor mounting plate 5; The drive motor 4 is connected to the first drive shaft 9 via the first gear 6, the second gear 7 and the third gear 8. The first drive shaft 9 is supported and positioned by the first mounting plate. The first drive shaft 9 is connected to the second drive shaft 14 via the fourth gear 12 and the fifth gear 13. The second drive shaft 14 is supported and positioned by the second mounting plate.

[0048] Optionally, the shaft end of the second drive shaft 14 is connected to the cams in the two sets of cam drive devices 2.

[0049] Specifically, the drive motor 4 is fixedly mounted on the motor mounting plate 5, serving as the unified power source for the entire testing mechanism. The motor output torque is transmitted sequentially to the first drive shaft 9 through the meshing of the first gear 6, the second gear 7, and the third gear 8. The first drive shaft 9 is supported and positioned by the first drive shaft 9 mounting plate, and then the power is split and transmitted to the second drive shaft 14 through a gear pair composed of the fourth gear 12 and the fifth gear 13. The second drive shaft 14 is mounted and supported by the second drive shaft 14 mounting plate 11. The first drive shaft 9 and the second drive shaft 14 rotate synchronously. The shaft ends of the second drive shaft 14 are respectively fixed to the first cam 15 and the second cam 16. The two sets of cams synchronously output reciprocating drive actions, respectively engaging with the drive contact action conversion device 3. The entire transmission system only requires a single drive motor 4 to input power, which can synchronously drive four stations to conduct contact durability life tests, significantly improving the efficiency of contact test verification.

[0050] Specifically, cam 18 is a cam specially designed for the trial operation of the switch machine. The second drive shaft 17 transmits power to cam 18, and cam 18 drives the first connecting plate 19 and the second connecting plate 20 on both sides to reciprocate.

[0051] Optionally, the contact action conversion device 3 includes a mounting base 21, a contact mounting plate 22, a left locking block 23, a right locking block 24, a cover plate 25, a sliding plate 26, a cam follower bearing 28, a guide sleeve 29, and a spring 30. The left locking block 23 and the right locking block 24 are assembled inside the cavity formed by the mounting base 21 and the contact mounting plate 22; The cover plate 25 is fixed on the contact mounting plate 22 and is used to limit the reciprocating stroke of the left locking block 23 and the right locking block 24; the slide plate 26 is arranged between the sliding contact surfaces of the locking blocks. The cam follower bearing 28 is assembled at the end of the connecting plate 27; the guide sleeve 29 and the spring 30 are arranged in a matching manner between the tail end of the locking block and the cavity.

[0052] Among them, the sliding plate 26 is made of polytetrafluoroethylene to reduce the sliding friction resistance during the reciprocating sliding of the locking block.

[0053] It should be noted that the left and right locking blocks 24 are assembled inside the cavity formed by the mounting base 21 and the contact mounting plate 22; the cover plate 25 is fixed above the contact mounting plate 22, which limits and constrains the reciprocating stroke of the left and right locking blocks 24. The sliding plate 26 is made of polytetrafluoroethylene and is arranged between the sliding contact surfaces of the locking blocks. It can achieve self-lubrication during the reciprocating sliding of the locking blocks, reducing sliding friction resistance.

[0054] Specifically, the cam follower bearing 28 is mounted on the end of the connecting plate 27 and can move synchronously along the contour trajectory of the drive cam; the guide sleeve 29 and the spring 30 are arranged in a matching manner between the tail end of the locking block and the cavity. When the cam protrusion pushes the cam follower bearing 28 and drives the connecting plate 27 to retract towards the mounting base 21, the internal spring 30 is simultaneously compressed and stores energy; when the cam profile rotates past the protrusion section, the spring 30 releases the preload force and pushes the connecting plate 27 back to reset, so that the cam follower bearing 28 is in close contact with the cam profile throughout the entire process, ensuring synchronous action conversion and gapless disengagement, accurately driving the locking block to complete the switching action, and realizing reliable on / off switching of the turnout position contact.

[0055] Optionally, the contact mounting plate 22 can be adapted to mechanical interfaces of different types of contacts.

[0056] Optionally, the railway turnout switch contact life test bench also includes a load test bench.

[0057] The power output device 1, each cam drive device 2, and the contact action device are all arranged inside the load table.

[0058] Specifically, the load table is the actuator of the turnout switch machine contact life test bench, which is mainly equipped with a power output device 1, a cam drive device 2 and a contact action conversion device 3.

[0059] Optionally, the railway turnout switch machine contact life test bench also includes a control cabinet, a power supply module, a data acquisition module, and a control module; The power supply module, data acquisition module, and control module are all housed inside the control cabinet; The power module is connected to the power output device 1 and is used to provide power to the power output device 1; The data acquisition module is connected to the power output device 1, the cam drive device 2, and the contact action conversion device 3; The control module is connected to the power output device 1.

[0060] It should be noted that the power supply module, data acquisition module, and programmable logic controller (PLC) control module required for the railway turnout switch machine contact life test bench are all installed in the control cabinet.

[0061] Optionally, the railway turnout switch machine contact life test bench also includes: The display operation unit is used to realize human-computer interaction.

[0062] Specifically, the display operation unit is the human-machine interaction and data monitoring terminal of the turnout switch machine contact life test bench, which is the operation center and data visualization center of the entire test bench.

[0063] In the other railway turnout switch machine contact life test bench proposed in this embodiment, the circuit of the railway turnout switch machine contact life test bench can be a three-phase five-wire AC380V 50Hz system, with resistance measurement of 0~2000mΩ and current measurement of 0~20.000A. It realizes four core functions: contact on / off simulation, parameter acquisition, load simulation, and fault protection. The circuit is divided into four parts: main power supply circuit, load simulation circuit, signal acquisition circuit, and control protection circuit. It is compatible with different types of contact testing such as TS-1C, ASJ-C, TKZ-01, and Sartbao, and can accommodate both manual debugging and PLC intelligent control.

[0064] The railway turnout switch machine contact life testing method proposed in this embodiment can stop the life testing of a turnout switch machine contact when a fault or test problem occurs during the simultaneous life testing of multiple turnout switch machine contacts. Life testing can continue for other turnout switch machine contacts, avoiding the impact of a fault in one contact on the life testing of others. This successfully constructs an independent testing channel for multiple turnout switch machine contacts and effectively isolates faults between different contacts, providing high availability and ensuring efficient testing of multiple turnout switch machine contacts.

[0065] This embodiment proposes a railway turnout switch machine contact life testing system, applicable to any of the aforementioned railway turnout switch machine contact life testing benches. The railway turnout switch machine contact life testing bench includes a power output device, at least one set of cam drive devices, and at least one set of contact action conversion devices. The system may include: A connection unit is used to connect a turnout switch machine contact to be tested to each set of contact action conversion devices; The activation unit is used to activate the power output device in response to the contact test command, so that the power output device drives each turnout switch contact to switch on and off through each cam drive device and each node action conversion device respectively.

[0066] It should be noted that the processing procedures and beneficial effects of the connection unit and the opening unit can be found in the following references: Figure 1 Steps S601 to S602 in the process will not be described again.

[0067] The railway turnout switch machine contact life testing system proposed in this embodiment is applied to any of the aforementioned railway turnout switch machine contact life testing benches. The railway turnout switch machine contact life testing bench includes a power output device 1, at least one set of cam drive devices 2, and at least one set of contact action conversion devices 3. All cam drive devices 2 are arranged at both ends of the power output device 1. Each cam drive device 2 includes a cam and two connecting plates disposed on both sides of the cam. The cam is driven by the power transmission device and drives the two connecting plates to reciprocate. Each set of contact action conversion devices 3 connects one connecting plate and one turnout switch machine contact. Each set of contact action conversion devices 3 connects different connecting plates and turnout switch machine contacts. The contact action conversion devices 3 are used to switch the turnout switch machine contacts on and off under the drive of the cam and connecting plates. This embodiment can simultaneously perform automated life testing on multiple turnout switch machine contacts, improving the testing efficiency for multiple turnout switch machine contacts while enhancing the degree of testing automation, saving testing time, and enriching testing functions.

[0068] The railway turnout switch contact life testing system in this embodiment is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0069] This invention also provides a computer device having the above-mentioned railway turnout switch contact life testing system.

[0070] This invention provides a schematic diagram of the structure of a computer device according to an optional embodiment. The computer device includes one or more processors, memory, and interfaces for connecting the various components, including high-speed interfaces and low-speed interfaces. The various components are interconnected via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processor can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, multiple processors and / or multiple buses can be used with multiple memories, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system).

[0071] The processor can be a central processing unit, a network processor, or a combination thereof. The processor may further include hardware chips. These hardware chips can be application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or combinations thereof. The programmable logic devices can be complex programmable logic devices (CLPs), field-programmable gate arrays (FPGAs), general-purpose array logic (GDAs), or any combination thereof.

[0072] The memory stores instructions executable by at least one processor to cause the at least one processor to perform the method shown in the above embodiments.

[0073] The memory may include a stored program area and a stored data area, wherein the stored program area may store the operating system and application programs required for at least one function. The stored data area may store data created based on the use of the computer device. Furthermore, the memory may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory may optionally include memory remotely located relative to the processor, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0074] Memory may include volatile memory, such as random access memory (RAM). Memory may also include non-volatile memory, such as flash memory, hard disk drive (HDD), or solid-state drive (SSD). Memory may also include combinations of the above types of memory.

[0075] The computer device also includes a communication interface for communicating with other devices or communication networks.

[0076] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test bench for the life of railway turnout switch machine contacts, characterized in that, include: Power take-off device; At least one set of cam drive devices are arranged at both ends of the power output device; the cam drive device includes a cam and two connecting plates disposed on both sides of the cam, the cam is connected to the power transmission device, and the cam is used to drive the two connecting plates to reciprocate; At least one set of contact action conversion devices, each set of contact action conversion devices is connected to one of the connecting plates and one turnout switch machine contact, and each set of contact action conversion devices is connected to different connecting plates and turnout switch machine contacts. The contact action conversion devices are used to switch the turnout switch machine contacts on and off under the drive of the cam and the connecting plate.

2. The railway turnout switch machine contact life test bench according to claim 1, characterized in that, The power output device includes a drive motor, a motor mounting plate, a first gear, a second gear, a third gear, a first transmission shaft, a first mounting plate, a second mounting plate, a fourth gear, a fifth gear, and a second transmission shaft; The drive motor is fixedly mounted on the motor mounting plate; The drive motor is connected to the first drive shaft via the first gear, the second gear and the third gear, and the first drive shaft is supported and positioned by the first mounting plate. The first drive shaft is connected to the second drive shaft via the fourth gear and the fifth gear, and the second drive shaft is supported and positioned by the second mounting plate.

3. The railway turnout switch machine contact life test bench according to claim 2, characterized in that, The first drive shaft is driven to a cam in one of the cam drive devices, and the second drive shaft is driven to a cam in another of the cam drive devices.

4. The railway turnout switch machine contact life test bench according to claim 3, characterized in that, The contact action conversion device includes a mounting base, a contact mounting plate, a left locking block, a right locking block, a cover plate, a sliding plate, a cam follower bearing, a guide sleeve, and a spring. The left locking block and the right locking block are assembled inside the cavity formed by the mounting base and the contact mounting plate; The cover plate is fixed to the contact mounting plate and is used to limit the reciprocating stroke of the left locking block and the right locking block; the sliding plate is arranged between the sliding contact surfaces of the locking blocks. The cam follower bearing is assembled at the end of the connecting plate; the guide sleeve and the spring are arranged in conjunction between the tail end of the locking block and the cavity.

5. The railway turnout switch machine contact life test bench according to claim 1, characterized in that, The railway turnout switch contact life test bench also includes a load table, control cabinet, power supply module, data acquisition module and control module; The power output device, each set of the cam drive device and the contact action device are all arranged inside the load platform; The power module, the data acquisition module, and the control module are all located inside the control cabinet; The power module is connected to the power output device and is used to provide power to the power output device; The data acquisition module is connected to the power output device, the cam drive device, and the contact action conversion device; The control module is connected to the power output device.

6. The railway turnout switch machine contact life test bench according to claim 5, characterized in that, The railway turnout switch contact life test bench also includes: The display operation unit is used to realize human-computer interaction.

7. A method for testing the lifespan of railway turnout switch machine contacts, characterized in that, A railway turnout switch machine contact life test bench applied to any one of claims 1 to 6, the railway turnout switch machine contact life test bench comprising a power output device, at least one set of cam drive devices, and at least one set of contact action conversion devices; the method comprising: Connect one turnout switch machine contact to be tested to each of the aforementioned contact action conversion devices; In response to the contact test command, the power output device is activated so that the power output device drives each turnout switch contact to switch on and off via each of the cam drive devices and each of the node action conversion devices.

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