A testing device and method for flexibility of a point blade connecting iron of an outside locking device

Abstract

The present application relates to a kind of outside locking device point rail connecting iron flexibility test device and method, test device at least includes workbench (1), bottom plate (2), support plate (3), press bar (4), connecting block (5), lock block (6), sensor (11), man-machine interface (13), push-pull plate (17), point rail connecting iron (15) and the like component, fixed bottom plate (2) by supporting bolt (8) and press block (7) cooperation, press bar (4) is hinged with support plate (3) and connecting block (5) by pin (9)-1, pin (10)-2, sensor (11) is installed between connecting block (5) and lock block (6) and is connected with man-machine interface (13) signal, after push-pull plate (17) and point rail connecting iron (15) are fixed, form movable connection by bolt with lock block (6), connecting iron seat (16).The present application shortens test time, standardizes operation process, effectively improves test efficiency and result reliability, provides scientific support for product quality control.

Description

Technical Field

[0001] This invention relates to the technical field of turnout external locking devices, specifically to a device and method for testing the flexibility of the switch rail connection of an external locking device. Background Technology

[0002] The GW-SH type external locking device is a key piece of equipment for turnout switching on conventional and high-speed railways. Its core function is to directly clamp the rail components through an external locking structure, achieving rigid locking between the switch rail and the stock rail. Working in conjunction with a switch machine, it enables flexible turnout switching, ensuring that the switch rail clearance meets specifications and adapts to different curve radii and track gauges. It also eliminates the risk of false locking and improves switching reliability. Made of corrosion-resistant and wear-resistant materials, it can withstand harsh environments such as rain, snow, and dust, while also buffering vibrations and impacts from passing trains, extending the equipment's service life, reducing maintenance frequency, and possessing fail-safe characteristics. In abnormal situations, it can maintain locking or reliably unlock, preventing turnout malfunction and providing crucial protection for railway transportation safety.

[0003] During turnout switching, the torque output by the switch machine is transmitted to the locking lever through the actuating connecting rod. The locking lever drives the locking hook to move, and the locking hook is connected to the switch rail connecting iron through a pin, thereby driving the switch rail to move, and in turn driving the switch rail to switch.

[0004] The switch rail connecting iron is fixed to the switch rail with bolts and connected to the locking hook via a pin shaft. The connecting iron base serves as a load-bearing base and is adapted to the "hook head" structure of the locking hook. The push-pull plate is assembled via a rotating fulcrum, connecting the switch rail connecting iron to other components. When the switch machine moves the locking rod, the locking hook pulls the switch rail connecting iron through the "hook head" of the connecting iron base, driving the switch rail to switch. When the switch rail changes its extension or retraction, the switch rail connecting iron moves along the rail direction, while the push-pull plate only rotates around a fixed point, avoiding jamming during switching. The three components work together to achieve precise switching and extension / retraction compensation of the switch rail, ensuring reliable locking.

[0005] In summary, during the assembly of the external locking device, especially the GW-SH type external locking device, it is necessary to ensure the relative flexibility of the switch rail connecting iron, push-pull plate, and connecting iron seat to avoid jamming during transition. Currently, there is no standard testing method for the flexibility of the switch rail connecting iron. The existing testing method is to manually press the push-pull plate after assembly and observe the relative movement of the push-pull plate, switch rail connecting iron, and connecting iron seat. If there is no obvious jamming, the assembly is considered qualified. The existing inspection method not only uses a lot of inspection tools, but also has low accuracy and large error during measurement.

[0006] Existing testing methods have the following shortcomings: 1. The testing process is cumbersome and the detection efficiency is low; 2. The test results have low reliability; they can only qualitatively determine the fit of parts and cannot make quantitative judgments. Summary of the Invention

[0007] The purpose of this invention is to provide a safe, reliable, and structurally sound device and method for testing the flexibility of the switch rail connection iron in an external locking device, which can solve the problem of insufficient flexibility or even jamming caused by improper assembly and effectively improve assembly efficiency.

[0008] The objective of this invention is achieved as follows: It relates to a device for testing the flexibility of the switch rail connecting iron of an external locking device, characterized in that it includes a worktable, a base plate, a support plate, a pressure rod, a connecting block, a locking block, a pressure block, a support bolt, a pin, a sensor, wires, a human-machine interface, washers, a switch rail connecting iron, a connecting iron base, and a push-pull plate. The base plate is placed above the workbench, and the fixing holes of the pressure block corresponding to the base plate are set above the base plate. The support bolt passes through the pressure block and is threadedly connected to the workbench to fasten the base plate to the workbench. The support plate is fixedly installed above the base plate, and the pins are inserted into the mounting holes at the ends of the support plate and the pressure rod to achieve the hinge connection between the support plate and the pressure rod; the pins are inserted into the mounting holes at the middle of the pressure rod and the connecting block to achieve the hinge connection between the pressure rod and the connecting block. A sensor is fixedly installed below the connecting block, and the sensor is fixedly connected to the locking block below it; the sensor establishes a signal connection with the human-machine interface through a wire, and the collected data is transmitted to the human-machine interface; The switch rail connecting iron and the support plate are respectively inserted into the mounting groove of the push-pull plate and fixedly connected to the push-pull plate; a washer is installed at each end of the head of the push-pull plate, and bolts are sequentially passed through the locking block, the connecting iron seat, the washer and the connecting hole of the push-pull plate to form a shaft connecting body that can rotate relative to each other.

[0009] The sensor is a contact force sensor used to collect frictional force data between the push-pull plate, the connecting iron base, and the switch rail connecting iron.

[0010] The human-machine interface has data display, recording and analysis functions, which are used to process the data transmitted by the sensors and determine the assembly flexibility of the switch rail connecting iron.

[0011] Furthermore, this invention also relates to a method for testing the flexibility of the switch rail connecting iron of an external locking device. Based on the aforementioned device, firstly, it is confirmed that the pressure rod is hinged to the support plate via a pin, and the pressure block and support bolts secure the base plate to the workbench without any loosening or displacement. It is confirmed that the support plate is fixed to the base plate, and the connecting block, locking block, connecting iron seat, push-pull plate, and switch rail connecting iron are sequentially connected to form a transmission link. It is confirmed that the sensor is in contact with the force-bearing surfaces of the locking block, push-pull plate, and connecting iron seat, and that the sensor establishes a signal connection with the human-machine interface via a wire. Then, the switch rail is manually lifted... Raising or lowering the pressure rod causes the connecting block, locking block, connecting iron seat, push-pull plate, and switch rail connecting iron to move in a linked relative motion. During the movement of the pressure rod-driven components, sensors collect real-time frictional force data between the push-pull plate and the switch rail connecting iron, and between the connecting iron seat and the switch rail connecting iron. The collected frictional force data is then transmitted to the human-machine interface in real time via wires. The assembly flexibility of the switch rail connecting iron is quantitatively judged based on the frictional force value displayed on the human-machine interface. The smaller the frictional force value, the higher the assembly flexibility of the switch rail connecting iron, and vice versa.

[0012] Compared with the prior art, the positive effects of the present invention are: 1. Significantly shortens the testing cycle of the flexibility of the switch rail connection of the GW-SH type external locking device, reduces the time spent on manual operation, and significantly improves the testing efficiency and overall production progress on the production line; 2. Breaking through the limitations of traditional manual qualitative judgment, it collects and quantitatively analyzes friction data in real time through sensors, accurately reflecting the assembly flexibility of the switch rail connecting iron, and effectively avoiding subjective judgment errors; 3. Clearly define the testing process and operating procedures to reduce the interference of human operation on test results, significantly improve the repeatability and reliability of test data, and provide scientific and accurate technical support for product quality control.

[0013] The present invention will be further described below with reference to the embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a device for testing the flexibility of the external locking device switch rail connection iron according to the present invention. Figure 2 yes Figure 1 The right view; Figure 3 This is a schematic diagram illustrating the testing principle of the flexible connection iron of the switch rail of the GW-SH type external locking device of the present invention. Figure 4 yes Figure 3 The right view.

[0015] In the diagram, 1. Workbench; 2. Base plate; 3. Support plate; 4. Pressure rod; 5. Connecting block; 6. Locking block; 7. Pressure block; 8. Support bolt; 9. Pin-1; 10. Pin-2; 11. Sensor; 12. Wire; 13. Human-machine interface; 14. Washer; 15. Switch rail connecting iron; 16. Connecting iron base; 17. Push-pull plate. Detailed Implementation

[0016] To further illustrate the technical means and methods adopted by the present invention to achieve its intended purpose, the specific implementation methods, structural features and methods of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 , Figure 2 As shown, this invention relates to a device for testing the flexibility of the switch rail connecting iron of an external locking device. The device comprises a workbench 1, a base plate 2, a support plate 3, a pressure rod 4, a connecting block 5, a locking block 6, a pressure block 7, a support bolt 8, pins 9-1 and 10-2, a sensor 11, a wire 12, a human-machine interface 13, a washer 14, a switch rail connecting iron 15, a connecting iron base 16, and a push-pull plate 17. The base plate 2 is placed above the workbench 1. The pressure block 7 is positioned above the fixing hole of the base plate 2. The support bolt 8 passes through the pressure block 7, securing the base plate 2 to the workbench 1. The support plate 3 is fixedly installed above the base plate 2, and pins 9-1 pass through the support plate 3 and... The mounting holes at the ends of the pressure rod 4 enable the two to be hinged; the pin 10-2 passes through the mounting holes of the middle of the pressure rod 4 and the connecting block 5 to enable the two to be hinged; the sensor 11 is installed below the connecting block 5, and the sensor 11 is connected to the locking block 6 below, and the locking block 6 is fixed above the base plate 2; the sensor 11 is connected to the human-machine interface 13 via the wire 12; the switch rail connecting iron 15 is not connected to the support plate 3, but passes through the mounting groove of the push-pull plate 17 and is fixed to the push-pull plate 17; a washer 14 is installed at each end of the head of the push-pull plate 17, and the standard bolt passes through the connecting holes of the locking block 6, the connecting iron seat 16, the washer 14 and the push-pull plate 17 in sequence to form a movable shaft connection.

[0018] like Figure 3 , Figure 4 As shown, this invention relates to a method for testing the flexibility of the switch rail connection of an external locking device, characterized by: based on the device of this invention, the following steps are performed: When in use, first confirm that the device is assembled in place. The pressure rod 4 is hinged to the support plate 3 by the pin 9-1. The pressure block 7 and the support bolt 8 cooperate to fasten the base plate 2 to the workbench 1, ensuring that the base plate 2 is not loose or displaced. The support plate 3 is fixed to the base plate 2. The connecting block 5, locking block 6, connecting iron seat 16, push-pull plate 17 and switch rail connecting iron 15 are connected in sequence to form a transmission link. The force-bearing contact surfaces of the sensor 11, locking block 6, push-pull plate 17 and connecting iron seat 16 are precisely fitted together, and a signal connection is established with the human-machine interface 13 through the wire 12.

[0019] Then, manually lift or lower the pressure rod 4, which in turn drives the connecting block 5, locking block 6, connecting iron seat 16, push-pull plate 17 and switch rail connecting iron 15 to generate a linkage relative motion.

[0020] During the movement of the pressure rod 4 driving component, the sensor 11 collects the frictional force data between the push-pull plate 17, the switch rail connecting iron 15, and the connecting iron seat 16 in real time, and transmits the collected frictional force data to the human-machine interface 13 in real time through the wire 12; based on the frictional force value displayed on the human-machine interface 13, the assembly flexibility of the switch rail connecting iron is quantitatively judged, that is, the smaller the frictional force value, the higher the assembly flexibility of the switch rail connecting iron; conversely, the higher the frictional force value, the lower the flexibility.

[0021] The beneficial effects of this invention are: 1. It significantly shortens the testing cycle of the switch rail connection flexibility of the GW-SH type external locking device, reduces the time spent on manual operation, and significantly improves the testing efficiency and overall production progress on the production line; 2. It breaks through the limitations of traditional manual qualitative judgment, and accurately reflects the assembly flexibility of the switch rail connection by collecting friction data in real time and analyzing it quantitatively through sensors, effectively avoiding subjective judgment errors; 3. It clarifies the testing process and operating specifications, reduces the interference of human operation on the test results, and greatly improves the repeatability and reliability of test data, providing scientific and accurate technical support for product quality control.

[0022] The above-described embodiments are merely illustrative of the implementation methods of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make other modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A device for testing the flexibility of the switch rail connection of an external locking device, characterized in that, Includes a workbench (1), a base plate (2), a support plate (3), a pressure rod (4), a connecting block (5), a locking block (6), a pressure block (7), a support bolt (8), pins (9)-1, pins (10)-2, a sensor (11), wires (12), a human-machine interface (13), washers (14), a switch rail connecting iron (15), a connecting iron seat (16), and a push-pull plate (17); The base plate (2) is placed above the workbench (1), the pressure block (7) is set above the base plate (2) corresponding to the fixing hole of the base plate (2), and the support bolt (8) passes through the pressure block (7) and is threadedly connected to the workbench (1) to fasten the base plate (2) to the workbench (1); The support plate (3) is fixedly installed above the base plate (2). The pin (9)-1 passes through the mounting holes at the ends of the support plate (3) and the pressure rod (4) to achieve the hinge connection between the support plate (3) and the pressure rod (4). The pin (10)-2 passes through the mounting holes in the middle of the pressure rod (4) and the connecting block (5) to achieve the hinge connection between the pressure rod (4) and the connecting block (5). The sensor (11) is fixedly installed below the connecting block (5), and the sensor (11) is fixedly connected to the locking block (6) below; the sensor (11) establishes a signal connection with the human-machine interface (13) through the wire (12), and the collected data is transmitted to the human-machine interface (13). The switch rail connecting iron (15) and the support plate (3) are respectively inserted into the mounting groove of the push-pull plate (17) and fixedly connected to the push-pull plate (17); a washer (14) is installed at each end of the head of the push-pull plate (17), and the bolt passes through the locking block (6), the connecting iron seat (16), the washer (14) and the connecting hole of the push-pull plate (17) in sequence to form a shaft connecting body that can rotate relative to each other.

2. The device for testing the flexibility of the switch rail connection of an external locking device according to claim 1, characterized in that, The sensor (11) is a contact force sensor used to collect frictional force data between the push-pull plate (17), the connecting iron seat (16), and the switch rail connecting iron (15).

3. The device for testing the flexibility of the external locking device switch rail connection iron according to claim 1, characterized in that, The human-machine interface (13) has data display, recording and analysis functions, which are used to process the data transmitted by the sensor (11) and determine the assembly flexibility of the switch rail connecting iron (15).

4. A method for testing the flexibility of the switch rail connection of an external locking device, characterized in that, Based on the apparatus of claim 1, the test method Includes the following steps: First, confirm that the pressure rod (4) is hinged to the support plate (3) by the pin (9)-1, and that the pressure block (7) and the support bolt (8) cooperate to fasten the base plate (2) to the workbench (1) and that the base plate (2) is not loose or displaced; confirm that the support plate (3) is fixed to the base plate (2), and that the connecting block (5), locking block (6), connecting iron seat (16), push-pull plate (17) and switch rail connecting iron (15) are connected in sequence to form a transmission link; confirm that the sensor (11) is in contact with the force-bearing contact surfaces of the locking block (6), push-pull plate (17) and connecting iron seat (16), and that the sensor (11) establishes a signal connection with the human-machine interface (13) through the wire (12); then, manually lift or lower the pressure rod (4), and through the pressure rod ( 4) The connecting block (5), locking block (6), connecting iron seat (16), push-pull plate (17) and switch rail connecting iron (15) are driven to generate a linkage relative motion in sequence; during the movement of the components driven by the pressure rod (4), the sensor (11) collects the friction data between the push-pull plate (17) and the switch rail connecting iron (15), and between the connecting iron seat (16) and the switch rail connecting iron (15) in real time, and transmits the collected friction data to the human-machine interface (13) in real time through the wire (12); the assembly flexibility of the switch rail connecting iron (15) is quantitatively judged according to the friction value displayed on the human-machine interface (13). The smaller the friction value, the higher the assembly flexibility of the switch rail connecting iron (15), and vice versa.

5. The method for testing the flexibility of the switch rail connection of an external locking device according to claim 4, characterized in that, The gap between the sensor (11) and the force-bearing contact surface is no greater than 0.02 mm.

6. The method for testing the flexibility of the switch rail connection of an external locking device according to claim 4, characterized in that, The human-machine interface (13) displays and records the received friction data in real time, and quantitatively judges the assembly flexibility of the switch rail connecting iron (15) based on the average or peak value of the friction.

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