Switch outer locking conversion resistance online monitoring method with redundancy design

Abstract

The application relates to a turnout outer locking conversion resistance online monitoring method with a redundant design, characterized by comprising at least a monitoring system and a motion connecting rod assembly with a monitoring conversion resistance function and a cold backup redundant structure; a switch machine motion rod transmits a pushing force or a pulling force to a locking rod of an outer locking conversion device through the motion connecting rod assembly with the monitoring conversion resistance function and the cold backup redundant structure, so as to realize unlocking, conversion and locking of the outer locking conversion device of the turnout; and the motion connecting rod assembly with the monitoring conversion resistance function and the cold backup redundant structure is used for completing outer locking conversion resistance monitoring output of the turnout. The method can guarantee the conversion resistance monitoring precision of the outer locking conversion device of the turnout and the strength safety of the outer locking conversion device of the turnout.

Description

Technical Field

[0001] This invention relates to the field of railway basic signaling facility monitoring technology, and in particular to the technology related to online monitoring of switching resistance during the switching process of turnout external locking switching devices. More specifically, it relates to an online monitoring method for turnout external locking switching resistance with redundant design. Background Technology

[0002] The turnout external locking switch is a key piece of equipment in the railway signaling system. It is used to change the opening direction of the turnout, lock the switch rail, and reflect the position status of the switch rail. Figure 1 A schematic diagram of the existing turnout external locking conversion device is provided. The locking rod of the turnout external locking conversion device is connected to the switch machine's actuating rod through an actuating connecting rod assembly. In the existing structure, the actuating rod connecting pin and the locking rod connecting pin are orthogonal. When the turnout needs to be switched, the switch machine's actuating rod actuator is activated, and the switch machine's actuating rod moves. Through the actuating connecting rod assembly, it drives the locking rod of the turnout external locking conversion device to move, realizing the unlocking, switching, and locking functions of the turnout external locking conversion device. This ensures that the switch rail and the stock rail are closely fitted and locked. The switch machine indicator rod is connected to the turnout external locking conversion device through a connecting rod to reflect the relevant positional changes of the turnout external locking conversion device.

[0003] In actual use, due to frequent exposure to train vibration, crushing, and environmental temperature changes such as wind, sand, rain, snow, and sun exposure, the external locking switching device of the turnout will inevitably experience problems such as switch rail deformation, switch rail creep, thick edges, and increased switching and locking resistance due to poor lubrication. In severe cases, these problems can cause the turnout and switching equipment to jam and fail to lock, affecting the normal operation of the equipment and train safety.

[0004] Currently, there are two main methods for online monitoring of the switching resistance of turnout external locking switching devices:

[0005] One approach is to replace the connecting pin between the switch machine's actuating rod and the connecting rod assembly with a pin-type tension / compression sensor. This allows for online monitoring of the switching resistance by tracking the strain of the pin-type sensor during the switching process. However, as the connecting pin is a critical component in the turnout switching process, replacing it with a pin-type tension / compression sensor significantly reduces its strength. Since the pin-type sensor requires a certain amount of deformation to ensure monitoring accuracy, its strength is greatly reduced, making it prone to fatigue fracture and affecting operational safety, especially since its external dimensions cannot be altered.

[0006] Another method involves attaching multiple strain gauges to relevant parts of the action connecting rod assembly connected to the switch machine's action rod, and then amplifying the electrical signal using a bridge circuit to achieve online monitoring of the switching resistance. However, because the original action connecting rod assembly has high strength and a large cross-sectional area, the strain during the transmission of the switching resistance is very small, resulting in low accuracy for this monitoring method, which cannot meet the accuracy requirements for the switching resistance.

[0007] Of the two methods described above, the former solves the monitoring accuracy problem, but safety will be severely affected. The latter solves the safety problem, but the accuracy is too low, and the error in the monitored switching resistance is large, making it impossible to accurately provide relevant maintenance parameters for the turnout external locking switching equipment. Summary of the Invention

[0008] The purpose of this invention is to provide an online monitoring method for the external locking switching resistance of turnouts with redundant design. This method can ensure both the accuracy of online monitoring of the external locking switching resistance of turnouts and the strength and safety of the external locking switching device.

[0009] The objective of this invention is achieved by providing an online monitoring method for the external locking switching resistance of a turnout with redundant design. The method is characterized by a monitoring system and an actuating connecting rod assembly with a monitoring switching resistance function and a cold backup redundant structure. The switch machine actuating rod transmits thrust or pull force to the locking rod of the external locking switching device through the actuating connecting rod assembly, thereby enabling the unlocking, switching, and locking of the turnout's external locking switching device. The online monitoring output of the turnout's external locking switching resistance is completed by the actuating connecting rod assembly with the monitoring switching resistance function and the cold backup redundant structure.

[0010] The aforementioned action connecting rod assembly with monitoring conversion resistance function and cold backup redundancy structure may include: a first sensor connector, a tension / compression sensor, an outer frame, a second sensor connector, a thrust member, and a locking rod connector. The outer frame is a cylindrical structure. The first sensor connector is axially threaded to the tension / compression sensor, and the other end of the tension / compression sensor is axially threaded to the second sensor connector. The first sensor connector, the tension / compression sensor, and the second sensor connector are all fitted into the outer frame of the cold backup redundancy structure. The outer frame is a cylindrical structure, and there is a radial gap between the first sensor connector, the tension / compression sensor, and the second sensor connector. The inner side of one end of the cylindrical cold backup redundancy structure's outer frame has a 1mm axial gap with the second sensor connector, and the outer side has a 1mm axial gap with the thrust member.

[0011] The actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure transmits thrust or pull force to the locking rod of the external locking switching device through the following method: The other end of the sensor's first connector is connected and fixed to the switch machine's actuating rod using an actuating rod connecting pin, thus transmitting the force of the switch machine's actuating rod to the axial force of the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure; the sensor's second connector is threaded to the locking rod connector, and the locking rod connector is connected to the locking rod using a locking rod connecting pin; this forms the process by which the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure transmits thrust or pull force to the external locking switching device.

[0012] The aforementioned action connecting rod assembly with monitoring conversion resistance function and cold backup redundancy structure includes: a first sensor connector, a tension / compression sensor, an outer frame, a second sensor connector, a cover plate, and a locking rod connector. The outer frame is a square cavity structure. One end of the first sensor connector is connected to the perimeter of the tension / compression sensor by four bolts, and the other end of the tension / compression sensor is connected to the perimeter of the second sensor connector by four bolts to form an integral unit. The first sensor connector, the tension / compression sensor, and the second sensor connector are fitted together into the outer frame of the cold backup redundancy structure and sealed and limited by the cover plate.

[0013] The connection and mating relationship between the sensor first connector, the tension / compression sensor, the sensor second connector, the outer frame, and the outer frame cover plate is implemented as follows;

[0014] The cold backup redundant structure has an outer frame, one side of which has an outer frame cover plate. The outer frame cover plate has protrusions around its perimeter that form a limit with the inner perimeter of the outer frame. The outer frame cover plate is rigidly connected to the sensor's first connector and one end of the outer frame by positioning bolts, spring washers, and hexagonal nuts.

[0015] There is a groove on the inner side of the other end of the outer frame, and there is also a groove on the inner side of the corresponding outer frame cover plate. There is a boss at the corresponding position of the second connector of the sensor and the groove of the outer frame and the groove of the outer frame cover plate. The second connector of the sensor and the outer frame, the outer frame cover plate and the corresponding inner side axially form a 1mm gap.

[0016] The outer frame and outer frame cover plate are clearance-fitted with the sensor and the second sensor connector around the perimeter.

[0017] The working status of the actuating connecting rod assembly with the function of monitoring conversion resistance and cold backup redundancy structure:

[0018] Under normal operating conditions, the push or pull force of the switch machine's operating rod is transmitted to the locking rod of the external locking switching device via the operating rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure.

[0019] Including: (1) starting the switch machine action rod actuator, when the switch machine action rod moves forward or backward, pushing or pulling the action connecting rod assembly with monitoring switching resistance function and cold backup redundancy structure through the action rod connecting pin;

[0020] (2) By pushing or pulling the locking rod in the forward or reverse direction through the locking rod connecting pin, the unlocking, switching, locking process and switching resistance of the turnout external locking switching device can be monitored in real time.

[0021] (3) Since the left end of the outer frame is fixedly connected to the first connector of the sensor and moves together, the right end has a 1mm gap in the left and right axial directions with the second connector of the sensor, and there is a radial gap with the tension and compression sensor and the second connector of the sensor. This will not limit the strain change when the tension and compression sensor moves forward and backward, and will not affect the conversion resistance monitoring. The linear signal output of the tension and compression sensor in the action connecting rod assembly that realizes the function of monitoring conversion resistance when subjected to push or pull force will not affect the online monitoring function and accuracy of conversion resistance.

[0022] When the tension / compression sensor experiences structural fatigue fracture, the push or pull force of the switch machine's operating rod is transmitted through the outer frame to the locking rod of the external locking conversion device.

[0023] When the switching resistance monitoring function and the switching resistance monitoring function of the redundant cold backup structure's action connecting rod assembly fail, the redundant cold backup outer frame begins to function. When the switch machine's action rod moves forward, it pushes the first sensor connector forward through the action rod connecting pin. The outer frame, which is fixedly connected to the first sensor connector, moves along with it. After a 1mm axial movement, it pushes the locking rod connector forward. When the switch machine's action rod moves in the reverse direction, it pulls the first sensor connector in the reverse direction through the action rod connecting pin. The outer frame, which is fixedly connected to the first sensor connector, moves along with it. After a 1mm axial movement, the inner side of the outer frame contacts the second sensor connector, forming a rigid axial connection. This pulls the locking rod connector in the reverse direction, and through the locking rod connecting pin, the unlocking, switching, and locking functions of the turnout's external locking switching device are realized. Because the locking amount of the turnout's external locking switching device is between 20 and 35mm, a 1mm change in the left and right distance between the outer frame and the second sensor connector does not affect the unlocking, switching, and locking functions or safety of the turnout's external locking switching device.

[0024] The tension and compression direction of the tension and compression sensor is on the same tension and compression axis as the tension and compression direction during the operation of the switch machine operating rod, the first sensor connector, the tension and compression sensor, and the second sensor connector.

[0025] The actuating connecting rod assembly, which has the function of monitoring conversion resistance and a cold backup redundancy structure, is located between the actuating rod connecting pin and the locking rod connecting pin.

[0026] One end of the outer frame is fixedly connected to the first connector of the sensor radially and axially, and the other end has a 1mm gap in each of the left and right axial directions with the second connector of the sensor. It is radially fitted with the first connector of the sensor, the tension / compression sensor, and the second connector of the sensor. It moves with the first connector of the sensor but does not limit the strain change when the tension / compression sensor moves forward or backward.

[0027] The advantages of this invention are:

[0028] (1) A new action connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure is designed between the switch machine action rod and the turnout external locking device. It can transmit the power of the action rod to realize the unlocking, switching and locking process of the turnout external locking device, and can also perform online monitoring of switching resistance while ensuring monitoring accuracy. The outer frame of the cold backup redundancy structure has radial and axial gaps with the tension and compression sensors. When realizing the unlocking, switching and locking functions of the turnout external locking device, it moves with the sensor but does not affect the online monitoring and accuracy of the switching resistance.

[0029] (2) When the tensile and compressive sensor suffers structural fatigue fracture and its monitoring function fails, the outer frame, as a redundant structure, begins to bear the function of transmitting the power of the action rod: when the action rod moves, the outer frame moves 1 mm with the first connector 103 of the sensor and then forms an axial rigid connection with the second connector 106 of the sensor, pushing the locking rod of the turnout external locking conversion device to move. Since the locking amount is between 20 and 35 mm, the 1 mm change in the axial direction of the outer frame does not affect the unlocking, conversion, locking function and safety of the turnout external locking conversion device.

[0030] (3) The online monitoring function of switching resistance is realized by connecting the relevant data of the tension and compression sensors and the power supply cable to the corresponding acquisition unit in the switch machine by the trackside, and then connecting it to the station monitoring host through a 2-core carrier communication cable. The online monitoring of the switching resistance of the turnout external locking switching device during the switching process is realized through the monitoring host system software.

[0031] The present invention will be further described below with reference to the embodiments and accompanying drawings. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the existing turnout external locking switching device;

[0033] Figure 2 This is a basic schematic diagram of the online monitoring principle of the external locking switching resistance of a turnout with redundant design;

[0034] Figure 3 It is the cylindrical action connecting rod assembly with monitoring conversion resistance function and cold backup redundancy structure of Embodiment 1;

[0035] Figure 4This is the main view of the block-shaped action connecting rod assembly with monitoring conversion resistance function and cold backup redundancy structure in Embodiment 2;

[0036] Figure 5 This is a top view of the block-shaped action connection rod assembly with monitoring conversion resistance function and cold backup redundancy structure in Embodiment 2.

[0037] In the diagram: 101. Switch machine operating rod; 102. Operating rod connecting pin; 103. Sensor first connector; 104. Tension / compression sensor; 105. Outer frame; 106. Sensor second connector; 107. Thrust member; 108. Locking rod connector; 109. Locking rod connecting pin; 110. Locking rod; 201. Flat key; 202. Spring washer; 203. Locking nut; 301. Positioning bolt; 302. Spring washer; 303. Hex nut; 304. Outer frame cover plate; 305. Socket head cap screw; 306. Spring washer; 307. Socket head cap screw; 308. Hex nut; 309. Hex head bolt; 310. Spring washer; 311. Hex nut. Detailed Implementation

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but are not exhaustive of the embodiments and do not constitute a limitation of the invention.

[0039] Example 1

[0040] Example 1 is a cylindrical action connecting rod assembly of the present invention with a function of monitoring switching resistance and a cold backup redundancy structure. It is suitable for turnout external locking switching devices corresponding to electric switch machines such as ZD9 and S700K.

[0041] Combination Figure 2 and Figure 3 As shown, the online monitoring method for the external locking switching resistance of a turnout with redundant design is characterized by: including a monitoring system and an action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure. The switch machine action rod 101 transmits the thrust or pull force to the locking rod of the external locking switching device through the action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure, thereby realizing the unlocking, switching, and locking of the external locking switching device of the turnout. The action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure completes the monitoring output of the external locking switching resistance of the turnout.

[0042] The action connection rod assembly with monitoring conversion resistance function and cold backup redundancy structure in Example 1 includes: a sensor first connector 103, a tension / compression sensor 104, an outer frame 105, a sensor second connector 106, a thrust member 107, and a locking rod connector 108. The sensor first connector 103 is axially threaded to the tension / compression sensor 104, and the other end of the tension / compression sensor 104 is axially threaded to the sensor second connector 106. The sensor first connector 103, the tension / compression sensor 104, and the sensor second connector 106 are all fitted into the outer frame 105 of the cold backup redundancy structure. The outer frame 105 is a cylindrical structure, and there is a gap in the radial direction of the cylinder between the sensor first connector 103, the tension / compression sensor 104, and the sensor second connector 106.

[0043] In the above method, the switch machine actuating rod 101 transmits thrust or pull force to the external locking switching device through the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure. This is achieved by the following method: the sensor first connector 103 is connected and fixed to the switch machine actuating rod 101 using the actuating rod connecting pin 102, thereby realizing the transmission of force between the switch machine actuating rod 101 and the axial force of the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure; the other end of the sensor second connector 106 is connected to the outer frame 105 via a flat key 2. 01 Connection: The thrust member 107 blocks the flat key 201 to prevent axial movement of the flat key 201 and also to prevent the second sensor connector 106 from rotating circumferentially. Then, the second sensor connector 106 is threadedly connected to the locking rod connector 108. After adjusting the length, it is locked with a spring washer 202 and a locking nut 203. The locking rod connector 108 and the locking rod 110 are connected with the locking rod connecting pin 109. The process of the action connecting rod assembly, which forms the monitoring conversion resistance function and the cold backup redundancy structure, transmits the thrust or pull force to the external locking conversion device.

[0044] The inner side of one end of the outer frame 105 of the cylindrical cold backup redundancy structure has a 1mm gap with the axial direction of the second connector 106 of the sensor, and the outer side has a 1mm gap with the axial direction of the thrust member 107.

[0045] Example 2

[0046] The difference between Example 1 and Example 2 is that the outer frame 105 of the cold backup redundancy structure in Example 1 is cylindrical, while the outer frame 105 of the cold backup redundancy structure in Example 2 is square. They are respectively adapted to the turnout external locking conversion device corresponding to ZD9 and S700K electric switch machines and the turnout external locking conversion device corresponding to ZY series electro-hydraulic switch machines.

[0047] The working principles of Examples 1 and 2 are the same, and they are respectively adapted to the turnout external locking conversion device corresponding to the ZD9 and S700K electric switch machines and the turnout external locking conversion device corresponding to the ZY series electro-hydraulic switch machines.

[0048] Example 2 is a square-shaped action connecting rod assembly with monitoring switching resistance function and cold backup redundancy structure, which is suitable for the turnout external locking switching device corresponding to the ZY series electro-hydraulic switch machine.

[0049] like Figure 4 and Figure 5 As shown, the online monitoring method for the external locking switching resistance of a turnout with redundant design is characterized by: including a monitoring system and an action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure. The switch machine action rod 101 transmits the thrust or pull force to the locking rod of the external locking switching device through the action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure, thereby realizing the unlocking, switching, and locking of the external locking switching device of the turnout. The action connecting rod assembly with monitoring switching resistance and a cold backup redundant structure completes the monitoring output of the external locking switching resistance of the turnout.

[0050] The above-described method includes an action connecting rod assembly with a function for monitoring conversion resistance and a cold backup redundancy structure, comprising: a first sensor connector 103, a tension / compression sensor 104, an outer frame 105, a second sensor connector 106, an outer frame cover plate 304, and a locking rod connector 108. The outer frame 105 is a square frame structure. One end of the first sensor connector 103 is connected to the tension / compression sensor 104 around its perimeter by four bolts, and the other end of the tension / compression sensor 104 is connected to the second sensor connector 106 around its perimeter by four bolts to form an integral unit. The first sensor connector 103, the tension / compression sensor 104, and the second sensor connector 106 are fitted together into the outer frame of the cold backup redundancy structure and sealed and limited by the outer frame cover plate 304.

[0051] In the above method, the switch machine actuating rod 101 transmits thrust or pull force to the external locking switching device through the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure. This is achieved by the following method: the sensor first connector 103 is connected and fixed to the switch machine actuating rod 101 using the actuating rod connecting pin 102, thereby transmitting the force of the switch machine actuating rod 101 to the axial force of the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure; the sensor second connector 106 is threaded to the locking rod connector 108, and the locking rod connector 108 is connected to the locking rod 110 using the locking rod connecting pin 109; thus, the actuating connecting rod assembly with monitoring switching resistance and a cold backup redundancy structure transmits thrust or pull force to the external locking switching device.

[0052] The connection and mating relationship between the sensor first connector 103, the tension / compression sensor 104, the sensor second connector 106, the outer frame 105, and the outer frame cover plate 304 is implemented in the following manner;

[0053] The outer frame 105 of the cold backup redundancy structure has an outer frame cover plate 304 on one side. The outer frame cover plate 304 has protrusions around its perimeter that limit the movement of the inner perimeter of the outer frame 105. The outer frame cover plate 304 is rigidly connected to the sensor first connector 103 and one end of the outer frame 105 by positioning bolts 301, spring washers 302 and hexagonal nuts 303.

[0054] There is a groove on the inner side of the other end of the outer frame 105, and there is also a groove on the inner side of the corresponding outer frame cover plate 304. There are bosses at the corresponding positions of the grooves of the outer frame 105 and the outer frame cover plate 304. The sensor second connector 106 and the outer frame 105, the outer frame cover plate 304 and the corresponding inner side axially form a gap of 1mm.

[0055] The outer frame 105 and the outer frame cover 304 are clearance-fitted with the sensor and the second sensor connector 106 around the perimeter.

[0056] The method of the present invention includes the working state of an action connecting rod assembly having a function of monitoring conversion resistance and a cold backup redundancy structure:

[0057] Under normal working conditions, the push or pull force of the switch machine's action rod 101 is transmitted to the locking rod of the external locking conversion device via the action connecting rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure.

[0058] Including: (1) starting the switch machine action rod actuator, when the switch machine action rod 101 moves forward or backward, the action rod connecting pin 102 pushes or pulls the action connecting rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure to move;

[0059] (2) By pushing or pulling the locking rod 110 forward or backward through the locking rod connecting pin 109, the unlocking, switching, locking process and switching resistance of the turnout external locking switching device can be monitored in real time.

[0060] (3) Since the left end of the outer frame 105 is fixedly connected to the first connector 103 of the sensor and moves together, and the right end has a 1mm gap in the left and right directions of the second connector 106 of the sensor, and a radial gap with the tension and compression sensor 104 and the second connector 106 of the sensor, it will not restrict the strain change when the tension and compression sensor 104 moves in the forward and reverse directions, and will not affect the conversion resistance monitoring. The linear signal output of the tension and compression sensor 104 in the action connecting rod assembly that realizes the function of monitoring the conversion resistance is when it is subjected to push or pull.

[0061] When the tension / compression sensor 104 experiences structural fatigue fracture, the thrust or tension of the switch machine action rod 101 is transmitted to the locking rod of the external locking conversion device via the outer frame 105.

[0062] When the switching resistance monitoring function and the switching resistance monitoring function of the action connecting rod assembly of the cold backup redundant structure fail, the redundant cold backup outer frame 105 begins to function. When the switch machine action rod 101 moves forward, it pushes the sensor first connector 103 to move forward through the action rod connecting pin 102. The outer frame 105, which is fixedly connected to the sensor first connector 103, moves together with it. After moving axially by 1mm, it pushes the locking rod connecting piece 108 to move forward. When the switch machine action rod 101 moves in the reverse direction, it pulls the sensor first connector 103 to move in the reverse direction through the action rod connecting pin 102. The outer frame 105, which is fixedly connected to the sensor first connector 103, moves together with it. After moving axially by 1mm, the inner side of the outer frame 105 contacts the sensor second connector 106, forming a rigid axial connection. It pulls the locking rod connecting piece 108 to move in the reverse direction. Through the locking rod connecting pin 109, the unlocking, switching, and locking functions of the turnout external locking switching device are realized. Since the locking amount of the turnout external locking conversion device is between 20 and 35 mm, the 1 mm change between the outer frame 105 and the second sensor connector 106 does not affect the unlocking, conversion, locking functions and safety of the turnout external locking conversion device.

[0063] One end of the outer frame 105 is fixedly connected to the sensor first connector 103 radially and axially, and the other end has a 1mm gap in each of the left and right axial directions with the sensor second connector 106. It is radially clearance matched with the sensor first connector 103, the tension / compression sensor 104, and the sensor second connector 106. It moves with the sensor first connector 103 but does not limit the strain change when the tension / compression sensor 104 moves forward and backward.

[0064] The axial gap between the outer frame 105 and the second connector 106 of the sensor is greater than the maximum deformation of the tension / compression sensor 104, and in principle, it is no more than 1 mm.

[0065] The tension and compression direction of the tension and compression sensor 104 is on the same tension and compression axis as the tension and compression direction during the operation of the switch machine operating rod 101, the first sensor connector 103, the tension and compression sensor 104, and the second sensor connector 106.

[0066] The actuating connecting rod assembly with the function of monitoring conversion resistance and cold backup redundancy structure is located between the actuating rod connecting pin 102 and the locking rod connecting pin 109.

[0067] The axial connection length between the sensor's second connector 106 and the locking rod connector 108 is adjustable, and can be locked once the length is determined.

[0068] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An online monitoring method for the resistance of turnout external locking switching with redundant design, characterized by: It includes at least a monitoring system and an action connecting rod assembly with monitoring conversion resistance and a cold backup redundancy structure. The switch machine action rod (101) transmits the thrust or pull force to the locking rod of the external locking conversion device through the action connecting rod assembly with monitoring conversion resistance and a cold backup redundancy structure, thereby realizing the unlocking, conversion, and locking of the turnout external locking conversion device. The action connecting rod assembly with monitoring conversion resistance and a cold backup redundancy structure completes the monitoring output of the turnout external locking conversion resistance. The described action connecting rod assembly with monitoring conversion resistance function and cold backup redundancy structure includes: a sensor first connector (103), a tension / compression sensor (104), an outer frame (105), a sensor second connector (106), a thrust member (107), and a locking rod connector (108). The outer frame (105) is a cylindrical structure. The sensor first connector (103) is axially threaded to the tension / compression sensor (104), and the other end of the tension / compression sensor (104) is axially threaded to the sensor second connector (106). The first connector (103), the tension / compression sensor (104), and the second connector (106) are fitted together into the outer frame (105) of the cold backup redundancy structure. The outer frame (105) is a cylindrical structure. The first connector (103), the tension / compression sensor (104), and the second connector (106) of the sensor have a radial gap in the cylinder. The inner side of one end of the outer frame (105) of the cylindrical cold backup redundancy structure forms a 1mm gap with the second connector (106) of the sensor axially, and the outer side forms a 1mm gap with the thrust member (107) axially.

2. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: The action connecting rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure transmits the thrust or pull force to the locking rod of the external locking switching device in the following way: the first sensor connector (103) is connected and fixed to the switch machine action rod (101) with the action rod connecting pin (102) to realize the transmission of the force of the switch machine action rod (101) and the axial force of the action connecting rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure; the second sensor connector (106) is threaded to the locking rod connector (108), and the locking rod connector (108) is connected to the locking rod (110) with the locking rod connecting pin (109); thus forming the process of the action connecting rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure transmitting the thrust or pull force to the external locking switching device.

3. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: The action connecting rod assembly includes a sensor first connector (103), a tension / compression sensor (104), an outer frame (105), a sensor second connector (106), an outer frame cover plate (304), and a locking rod connector (108). The outer frame (105) is a square frame structure. One end of the sensor first connector (103) is connected to the tension / compression sensor (104) around the perimeter by four bolts. The other end of the tension / compression sensor (104) is connected to the sensor second connector (106) around the perimeter by four bolts to form an integral unit. The sensor first connector (103), the tension / compression sensor (104), and the sensor second connector (106) are fitted together into the outer frame (105) of the cold backup redundant structure and sealed and limited by the outer frame cover plate (304).

4. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 3, characterized in that: The connection and mating relationship of the sensor first connector (103), the tension / compression sensor (104), the sensor second connector (106), the outer frame (105), and the outer frame cover plate (304) is implemented in the following manner: The outer frame (105) of the cold backup redundancy structure has an outer frame cover plate (304) on one side. The outer frame cover plate (304) has protrusions around its perimeter that limit the movement of the inner perimeter of the outer frame (105). The outer frame cover plate (304) is rigidly connected to the sensor first connector (103) and one end of the outer frame (105) by positioning bolts (301), spring washers (302), and hexagonal nuts (303). The other end of the outer frame (105) has a groove on its inner side. The inner side of the corresponding outer frame cover plate (304) also has a groove. The corresponding positions of the groove of the outer frame (105) and the groove of the outer frame cover plate (304) are provided with bosses. The sensor second connector (106) forms a 1mm gap with the inner side of the outer frame (105) and the outer frame cover plate (304). The outer frame (105) and the outer frame cover plate (304) are clearance fit with the tension sensor (104) and the sensor second connector (106) around the perimeter.

5. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: The working status of the actuating connecting rod assembly with the function of monitoring conversion resistance and cold backup redundancy structure: 1) When the switch machine action rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure is in normal working condition: the push or pull force of the switch machine action rod (101) is transmitted to the locking rod of the external locking switching device through the action rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure; including: (1) starting the switch machine action rod actuator, when the switch machine action rod (101) moves forward or backward, the action rod connecting pin (102) pushes or pulls the action rod assembly with the function of monitoring switching resistance and the cold backup redundancy structure to move; (2) By pushing or pulling the locking rod (110) through the locking rod connecting pin (109) to move the locking rod in the forward or reverse direction, the unlocking, conversion, locking process and conversion resistance of the turnout external locking conversion device are monitored in real time. (3) Because the left end of the outer frame (105) is fixedly connected to the first connector (103) of the sensor and moves together, and the right end has a 1mm gap in the left and right axial directions with the second connector (106) of the sensor, and a radial gap with the tension and compression sensor (104) and the second connector (106) of the sensor, it will not restrict the strain change when the tension and compression sensor (104) moves in the forward and reverse directions, and will not affect the conversion resistance monitoring. The linear signal output of the tension and compression sensor (104) in the action connecting rod assembly that realizes the function of monitoring the conversion resistance is when it is subjected to push or pull force. 2) When the tension / compression sensor (104) experiences structural fatigue fracture, the thrust or tension of the switch machine's actuating rod (101) is transmitted to the locking rod of the external locking conversion device via the outer frame (105). The function of monitoring the conversion resistance and the function of monitoring the conversion resistance of the actuating connecting rod assembly of the cold backup redundant structure fail. At this time, the redundant cold backup outer frame (105) begins to function. When the switch machine's actuating rod (101) moves forward, it pushes the sensor's first connector (103) to move forward through the actuating rod connecting pin (102). The outer frame (105), which is fixedly connected to the sensor's first connector (103), moves along with it. After moving axially by 1mm, it pushes the locking rod connector (108) to move forward. When the switch machine's actuating rod (101) moves in the reverse direction... By using the action rod connecting pin (102), the sensor first connector (103) is pulled to move in the opposite direction. The outer frame (105), which is fixedly connected to the sensor first connector (103), moves together. After moving axially by 1mm, the inner side of the outer frame (105) contacts the sensor second connector (106) and is rigidly connected axially. The locking rod connecting piece (108) is pulled to move in the opposite direction. Through the locking rod connecting pin (109), the unlocking, conversion, and locking functions of the turnout external locking conversion device are realized. Since the locking amount of the turnout external locking conversion device is between 20 and 35mm, the 1mm change between the outer frame (105) and the sensor second connector (106) does not affect the unlocking, conversion, and locking functions and safety of the turnout external locking conversion device.

6. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: The tension and compression direction of the tension and compression sensor (104) is on the same tension and compression axis as the tension and compression direction of the switch machine action rod (101), the first sensor connector (103), the tension and compression sensor (104), and the second sensor connector (106) during operation.

7. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: The actuating connecting rod assembly with the function of monitoring conversion resistance and cold backup redundancy structure is located between the actuating rod connecting pin (102) and the locking rod connecting pin (109).

8. The online monitoring method for turnout external locking switching resistance with redundant design according to claim 1, characterized in that: One end of the outer frame (105) is fixedly connected to the sensor first connector (103) radially and axially, and the other end has a 1mm gap in each of the left and right axial directions with the sensor second connector (106). It is radially fitted with the sensor first connector (103), the tension and compression sensor (104), and the sensor second connector (106). It moves with the sensor first connector (103) but does not limit the strain change when the tension and compression sensor (104) moves in the forward and reverse directions.

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