Railway overhead line system compensation device operation monitoring equipment

Abstract

The utility model provides monitoring equipment for operation of a railway overhead line system compensation device, which is used for solving the problems that when the displacement of a balance weight is monitored in the prior art, the monitoring is inaccurate, the timeliness is lower, and the balance weight cannot be reported in time when the displacement of the balance weight is abnormal, so that the fault of an overhead line system cannot be found in time. The connecting platform of the monitoring equipment is mounted on the side wall of the balance weight guide rod, and the mounting plane of the connecting platform is parallel to the ground; the stay wire displacement sensor comprises a main body and a stay rope; the main body is arranged on the lower surface of the balance weight; one end of the pull rope is connected with the main body, the other end of the pull rope is fixed on the upper surface of the connecting platform, and the displacement of the balance weight can be changed when the balance weight moves, so that the pull rope displacement sensor can determine the displacement of the balance weight in time, the accuracy and timeliness of balance weight displacement monitoring are improved, and when the balance weight displacement is abnormal, reporting is carried out in time; and a contact network fault can be found in time.

Description

Technical Field

[0001] The utility model relates to the technical field of train safety, in particular to a monitoring device for the operation of a railway catenary compensation device. Background Art

[0002] Train operation is inseparable from catenary power supply. The catenary is neatly distributed above the train. They must maintain a unified height so that the pantograph of the train can stably obtain electric energy from the catenary. To ensure that the catenary is fixed at a unified height, a certain pulling force needs to be applied at both ends of the catenary, and the pulling force is provided by the counterweight, scientifically named the catenary counterweight. The weight of each counterweight is basically fixed. Railway catenary workers will calculate the required pulling force according to the distance between adjacent catenaries, and add or subtract the number of counterweights until the pulling force meets the standard. The counterweight is only a part of the catenary compensation device. The compensation device consists of a pulley, a compensation rope rod, a counterweight guide rod, a counterweight and a counterweight fixing ring, etc. When the temperature changes, the catenary wire will expand and contract thermally, resulting in elongation or shortening. Relying on the catenary compensation devices installed at both ends of the catenary, under the action of the gravity of the counterweight, the wire tension can be automatically adjusted and the wire sag can be maintained to meet the technical requirements.

[0003] The three major faults of the catenary: pole collapse, wire breakage, and network collapse (multiple poles collapsing in succession) are the most concerned by the power supply section and can also be timely detected through the counterweight. In the related art, the method of manual regular visual inspection is used to determine whether the moving distance of the counterweight is within the safe distance, and after judgment, a conclusion of "train speed reduction" or "stop running" is made. The manual visual inspection method has inaccurate monitoring and low timeliness, and cannot report in the first time when the catenary counterweight appears abnormal. Content of the Utility Model

[0004] The utility model provides a monitoring device and a monitoring method for the operation of a railway catenary compensation device, which are used to solve the problems in the related art that when monitoring the displacement of the counterweight, the monitoring is inaccurate and the timeliness is low, and it cannot report in time when the displacement of the counterweight is abnormal, resulting in the inability to timely detect catenary faults.

[0005] The utility model provides a monitoring device for the operation of a railway catenary compensation device. The monitoring device includes: a wire displacement sensor, a connection platform, and a catenary compensation device. The catenary compensation device includes a counterweight guide rod and a counterweight;

[0006] The connection platform is installed on the side wall of the counterweight guide rod, and the installation plane of the connection platform is parallel to the ground;

[0007] The wire displacement sensor includes a main body and a pulling rope. The main body is arranged on the lower surface of the counterweight; one end of the pulling rope is connected to the main body, and the other end is fixed on the upper surface of the connection platform.

[0008] In the present utility model, the connection platform of the monitoring device is installed on the side wall of the counterweight guide rod, and the installation plane of the connection platform is parallel to the ground; the wire-pulling displacement sensor includes a main body and a wire rope. The main body is arranged on the lower surface of the counterweight; one end of the wire rope is connected to the main body, and the other end is fixed on the upper surface of the connection platform. Since the displacement of the counterweight changes when it moves, the wire-pulling displacement sensor can timely determine the displacement of the counterweight, improve the accuracy and timeliness of counterweight displacement monitoring, and report in time when the counterweight displacement is abnormal, so that catenary faults can be detected in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0010] Figure 1 Structural schematic diagram of a monitoring device for the operation of a railway catenary compensation device provided by the present utility model;

[0011] Figure 2 Partial enlarged view of the connection between the counterweight and the housing of a monitoring device provided by the present utility model;

[0012] Figure 3 Another partial enlarged view of the connection between the counterweight and the housing of a monitoring device provided by the present utility model;

[0013] Figure 4 Partial enlarged view of the connection platform of a monitoring device provided by the present utility model;

[0014] Figure 5 Cross-sectional view of the housing of a monitoring device provided by the present utility model;

[0015] Figure 6 Another cross-sectional view of the housing of a monitoring device provided by the present utility model;

[0016] Figure 7 Three-dimensional schematic diagram of the appearance of a housing provided by the present utility model;

[0017] Figure 8 Front view of the appearance of a housing provided by the present utility model;

[0018] Figure 9 Left view of the appearance of a housing provided by the present utility model;

[0019] Figure 10 Top view of the appearance of a housing provided by the present utility model;

[0020] Figure 11 A perspective view of a first connector provided by the present utility model;

[0021] Figure 12 A front view of a first connector provided by the present utility model;

[0022] Figure 13 A left view of a first connector provided by the present utility model;

[0023] Figure 14 A top view of a first connector provided by the present utility model;

[0024] Figure 15 A schematic structural view of a main board provided by the present utility model;

[0025] Wherein, 10 - wire-pulling displacement sensor, 101 - main body of the wire-pulling displacement sensor, 102 - pulling rope of the wire-pulling displacement sensor, 20 - connection platform, 301 - weight guide rod, 302 - weight, 303 - pulley, 40 - housing, 50 - first connector, 501 - U-shaped groove, 502 - housing connector, 5021 - U-shaped groove connector, 5022 - bottom connector, 60 - weight bottom support, 70 - magnet, 80 - automatic retractable wire winder, 801 - telescopic component, 802 - safety rope, 90 - processor, 110 - main board, 120 - temperature sensor, 130 - acceleration sensor, 140 - Hall sensor, 150 - power supply unit. Specific embodiments

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0027] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, the present utility model can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present utility model, some design, manufacturing or production changes based on the technical content disclosed in the present utility model are only conventional technical means and should not be understood as the content disclosed in the present utility model being insufficient.

[0028] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the utility model. The phrase occurring in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly understand that the embodiments described in the utility model can be combined with other embodiments without conflict.

[0029] The terms "connected", "coupled", and similar terms related to the utility model are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" referred to in the utility model means two or more. The "and / or" describes the relationship between related objects and indicates that three relationships may exist. For example, "A and / or B" may mean: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates an "or" relationship between the related objects before and after. The terms "first", "second", "third", etc. related to the utility model are only used to distinguish similar objects and do not represent a specific order for the objects.

[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] The utility model provides a monitoring device 100 for the operation of a railway catenary compensation device. The monitoring device for the operation of the railway catenary compensation device will be described below with reference to the accompanying drawings.

[0032] Figure 1 It is a schematic structural diagram of a monitoring device for the operation of a railway catenary compensation device provided by the utility model. To better display the monitoring device, Figure 2 and Figure 3 It is a partial enlarged view of the connection between the counterweight and the housing of a monitoring device provided by the utility model. Figure 4 It is a partial enlarged view of the connection platform of a monitoring device provided by the utility model. Figure 5 and Figure 6 It is a cross-sectional view of the housing of a monitoring device provided by the utility model.

[0033] Referring to Figures 1-6 , the monitoring device 100 for the operation of a railway catenary compensation device may include a wire rope displacement sensor 10, a connection platform 20, and a catenary compensation device. The catenary compensation device includes a counterweight guide rod 301, a counterweight 302, and a pulley 303.

[0034] The connecting platform 20 is installed on the side wall of the counterweight guide rod 301, and the installation plane of the connecting platform 20 is parallel to the ground;

[0035] The wire-pulling displacement sensor 10 includes a main body 101 and a wire rope 102. The main body 101 is arranged on the lower surface of the counterweight 302; one end of the wire rope 102 is connected to the main body 101, and the other end is fixed on the upper surface of the connecting platform 20.

[0036] In order to accurately monitor the displacement of the counterweight, in the present invention, the displacement of the counterweight can be determined by the wire-pulling displacement sensor 10. It should be noted that the counterweight guide rod 301, the counterweight 302, and the pulley 303 form a catenary compensation device. In order to determine the displacement of the counterweight 302, the monitoring device further includes a connecting platform 20, which is installed on the side wall of the counterweight guide rod 301, and the installation plane of the connecting platform 20 is parallel to the ground.

[0037] The wire-pulling displacement sensor 10 includes a main body 101 and a wire rope 102. The main body 101 is arranged on the lower surface of the counterweight 302. One end of the wire rope 102 is connected to the main body 101, and the other end of the wire rope 102 is fixed on the upper surface of the connecting platform 20. For example, it can be connected to the connecting platform 20 by welding or the like, and the position of the wire rope 102 after installation corresponds to that of the counterweight 302. It can be directly below the counterweight 302 (the up and down described here are the up and down in the actual scenario).

[0038] In order to accurately monitor the displacement of the counterweight, the monitoring device further includes: a housing 40 and a first connector 50;

[0039] The main body 101 is fixed inside the housing 40;

[0040] An opening is provided at the bottom of the housing 40, and the wire rope 102 fixed at one end of the connecting platform 20 is pulled out from the opening;

[0041] The first connector 50 fixes the housing 40 on the lower surface of the counterweight 302.

[0042] In the actual scenario, the accuracy of the wire-pulling displacement sensor may be reduced due to weather influence. In the present invention, in order to protect the wire-pulling displacement sensor, the monitoring device may further include a housing 40. In the present invention, the structure of the housing refers to Figures 7-10To determine the displacement, an opening is provided at the bottom of the housing 40. This opening can also be referred to as a wire-drawing hole. One end of the wire 102 of the wire displacement sensor 10 connected to the connection platform 20 is drawn out from this opening, and the main body 101 of the wire displacement sensor 10 is fixed inside the housing 40. The first connector 50 fixes the housing to the lower surface of the counterweight 302.

[0043] In a possible implementation, the first connector 50 can be a magnet, and the housing 40 is adsorbed to the lower surface of the counterweight 302 through this magnet.

[0044] To realize the connection between the housing and the counterweight, the first connector 50 includes a U-shaped groove 501 and a housing connecting member 502; the U-shaped groove 501 and the housing connecting member 502 are connected.

[0045] The first connector 50 is connected to the counterweight 302 based on the U-shaped groove 501 and is connected to the housing 40 based on the housing connecting member 502.

[0046] The first connector 50 fixes the housing 40 to the lower surface of the counterweight 302 in the following way: the U-shaped groove 501 of the first connector 50 is connected to the counterweight 302, specifically to the lower surface of the counterweight 302, and the housing connecting member 502 of the first connector 50 is connected to the housing 40. In a possible implementation, the housing connecting member 502 can be connected to the housing 40 by welding.

[0047] To realize the connection between the housing and the counterweight, the monitoring device further includes: a counterweight bottom support 60. Among them, the counterweight 302 has a slit; there are multiple screw holes on the upper surface of the housing 40.

[0048] The housing connecting member 502 includes a bottom connecting member 5022 integrally provided and a U-shaped groove connecting member 5021 perpendicular to the bottom connecting member; the U-shaped groove 501 is connected to the U-shaped groove connecting member 5021.

[0049] The bottom connecting member 5022 is provided with multiple screw holes, and these multiple screw holes correspond to the multiple screw holes on the upper surface of the housing 40; the depth of the U-shaped groove 302 is the height of the counterweight bottom support 60, and the distance between the side walls of the U-shaped groove 302 is not greater than the minimum width of the slit 3021.

[0050] The U-shaped groove 302 is inserted into the counterweight bottom support 60 through the slit 3021 of the counterweight 302; bolts connect the housing connecting member 502 and the upper surface of the housing 40 through the multiple screw holes of the bottom connecting member 5022.

[0051] In the present utility model, the structure of the first connector refers to Figures 11-14 .

[0052] In the present utility model, the connection relationship between the U-shaped groove 501 and the counterweight 302 is referred to Figure 2 . The monitoring device further includes a counterweight base 60. Among them, the material of the counterweight base 60 is usually selected from materials that can bear weight, are corrosion-resistant, and have a certain degree of wear resistance. For example, it can be metals such as steel and aluminum alloy. Moreover, the counterweight base 60 can be fixed to the lower surface of the counterweight 302 by means such as welding. From Figure 2 , it can be seen that the counterweight 302 has a slit 3021. The depth of the U-shaped groove 501 is the height of the counterweight base 60, and the distance between the side walls of the U-shaped groove 302 is not greater than the minimum width of the slit 3021 of the counterweight 302; the U-shaped groove 302 is inserted into the counterweight base 60 through the slit 3021 of the counterweight 302.

[0053] In the present utility model, the connection relationship between the housing connector 502 and the housing 40 is referred to Figure 3 .

[0054] The housing connector 502 includes an integrally provided bottom connector 5022 and a U-shaped groove connector 5021 perpendicular to the bottom connector; the bottom connector 5022 is provided with a plurality of screw holes, and the plurality of screw holes correspond to the plurality of screw holes on the upper surface of the housing 40. In a possible implementation manner, 4 screw holes can be evenly provided on the bottom connector 5022; bolts connect the housing connector 502 and the upper surface of the housing 40 through the plurality of screw holes of the bottom connector 5022.

[0055] In order to accurately and effectively conduct monitoring, on the basis of the above embodiments, in the present utility model, the monitoring device further includes: a magnet 70 and an automatic telescopic wire reel 80; the automatic telescopic wire reel 80 includes a telescopic member 801 and a safety rope 802;

[0056] The other end of the pull rope 102 is connected to the top of the magnet 70 and is fixed to the upper surface of the connection platform 20 through the bottom of the magnet 70;

[0057] The telescopic member 801 is fixed to the upper surface of the connection platform 20. One end of the safety rope 802 is connected to the telescopic member 801, and the other end is connected to the top or side of the magnet 70.

[0058] In the present utility model, the connection relationship on the connection platform 20 is referred to Figure 4 .

[0059] Since the main body 101 of the cable displacement sensor 10 may be locked up. At this time, if one end of the cable 102 is connected to the magnet 70, and the magnet 70 is connected to the connection platform 20, and the cable 102 cannot extend and retract normally, it may occur that the counterweight 302 cannot move normally, resulting in a safe displacement for the train operation. To improve the safety of train operation, the monitoring device may further include an automatic cable retractor 80. The automatic cable retractor 80 is fixed on the upper surface of the connection platform 20. One end of the safety cable 802 of the automatic cable retractor 80 is connected to the automatic cable retractor 80, and the other end is connected to the side of the magnet 70. Thus, when the cable 102 cannot extend and retract normally, the suction force of the magnet 70 is less than the pulling force of the cable displacement sensor, and the magnet 70 disconnects from the connection platform 20. At this time, the automatic cable retractor 80 realizes extension and retraction through the safety cable 802, so that the counterweight can move normally.

[0060] The automatic cable retractor 80 is equivalent to an anti-"intrusion" protection mechanism, which improves the safety of train operation.

[0061] In order to accurately monitor the displacement of the counterweight, on the basis of the above embodiments, in the present invention, the monitoring device further includes: a processor 90; the processor 90 is fixed in the housing 40 and is connected to the cable displacement sensor 10; wherein, the cable displacement sensor 101 sends the detected displacement of the counterweight 302 to the processor 90, and the processor 90 determines whether the displacement of the counterweight is abnormal based on whether the deviation between the displacement and the standard displacement is greater than a threshold value.

[0062] In order to monitor whether the displacement of the counterweight is abnormal, the monitoring device further includes a processor 90, and the processor 90 may be a microcontroller unit (MCU). The processor 90 is fixed in the housing 40. In a possible implementation manner, the processor 90 may be fixed on the main board 110, and the main board 110 is fixed in the housing 40, and the processor 90 is connected to the cable displacement sensor 10. It should be noted that the connection between the processor 90 and the cable displacement sensor 10 may adopt a wireless communication connection.

[0063] In a possible implementation manner, the cable displacement sensor 10 may send the determined displacement information to the processor 90 at a preset time interval.

[0064] In order to determine whether there is an abnormal situation currently, after receiving the displacement information sent by the wire-pulling displacement sensor 10, the processor 90 can obtain the displacement of the counterweight 302. For accurate monitoring, the processor 90 locally pre-saves a standard distance, which is the distance that the counterweight moves when no abnormality occurs. It should be noted that the standard distance can be the displacement of the counterweight 302 determined based on multiple wire-pulling displacement sensors 10 with the same installation position as the wire-pulling displacement sensor 10 when no abnormality occurs.

[0065] After determining the displacement of the counterweight 302, the deviation between the displacement and the standard distance can be determined, and whether the deviation is greater than the threshold can be determined. If the deviation is not greater than the threshold, it can be determined that no abnormality occurs currently. If the deviation is greater than the threshold, it can be determined that the movement of the counterweight 302 is abnormal. At this time, there may be faults such as catenary pole collapse, wire breakage, or network collapse, or other abnormalities, and an alarm message can be sent. The staff can conduct research and judgment based on the alarm message and make a conclusion of "train speed reduction" or "stop running" after the research and judgment.

[0066] In a possible implementation manner, the processor 90 can send the alarm message to the server. And in order to facilitate the staff to quickly determine where the abnormality occurs, the position information of the counterweight 302 can be carried in the alarm message and sent to the server. Among them, the server can also be called the section center. And specifically, when sending the alarm message, it can be the narrowband Internet of Things (NB-IoT) module of the processor 90 that transmits the alarm message to the section center.

[0067] In order to accurately monitor the displacement of the counterweight 302, on the basis of the above embodiments, in the present utility model, the monitoring device further includes: a temperature sensor 120; the temperature sensor 120 is fixed in the housing 40 and connected to the processor 90; wherein, the processor 90 determines the standard displacement based on the ambient temperature detected by the temperature sensor 120.

[0068] At different air temperatures, due to the thermal expansion and contraction of the catenary, the position of the counterweight 302 may be different. At this time, in order to improve the safety of train operation and accurately monitor, standard distances, that is, reasonable displacements, can be saved for different ambient temperatures.

[0069] To detect the ambient temperature, the monitoring device further includes a temperature sensor 120, which is fixed in the housing 40. In a possible implementation, the temperature sensor 120 can be fixed on the main board 110, and the main board 110 is fixed in the housing 40. Moreover, the processor 90 is connected to the temperature sensor 120. It should be noted that the connection between the processor 90 and the temperature sensor 120 can adopt wireless communication connection.

[0070] And the temperature sensor 120 is used to detect the ambient temperature where it is located. Specifically, how the temperature sensor 120 detects the ambient temperature is prior art and will not be elaborated here. The temperature sensor 120 sends the detected ambient temperature to the processor 90, and the processor 90 determines the standard distance corresponding to the ambient temperature for storage.

[0071] To determine the standard distance, the temperature sensor 120 collects the reasonable displacement Y caused by seasonal changes within one year. After multiple temperature sensors 129 collect data, the staff finds the corresponding relationship between the temperature T and the distance Y, such as Y = aT + Y0, where a is the proportionality coefficient and Y0 is the base value. Subsequently, the processor 90 can determine the standard distance according to the corresponding relationship between the temperature and the distance.

[0072] To improve the safety of train operation, on the basis of the above embodiments, in the present utility model, the monitoring device further includes: an acceleration sensor 130; the acceleration sensor 130 is fixed in the housing 40 and is connected to the processor 90; the acceleration sensor 130 sends the detected train acceleration to the processor 90, and the processor 90 determines whether the counterweight displacement is abnormal according to whether the difference between the train acceleration and the preset acceleration is greater than the threshold.

[0073] In the present utility model, the monitoring device further includes an accelerometer 130, which is fixed in the housing 40. In a possible implementation, the acceleration sensor 130 can be fixed on the main board 110, and the main board 110 is fixed in the housing 40. Moreover, the processor 90 is connected to the acceleration sensor 130. It should be noted that the connection between the processor 90 and the acceleration sensor 130 can adopt wireless communication connection.

[0074] Among them, when the train passes by, the vibration signal generated by the passing train will cause a change in the acceleration detected by the acceleration sensor 130. The acceleration detected when the train does not pass by is a preset acceleration value. Therefore, in the present invention, the acceleration sensor 130 can send the detected train acceleration to the processor 90. After receiving the train acceleration, since the acceleration detected may be affected by the environment when the train does not pass by and is not the preset acceleration, the processor 90 can locally store a threshold value, which is greater than the acceleration deviation of the acceleration sensor affected by the environment. The processor 90 can determine the difference between the train acceleration and the preset acceleration value, and determine whether the difference is greater than the threshold value. If the difference is greater than the threshold value, it can be determined that the train has passed by, and then a signal is sent to the cable displacement sensor 10. After receiving the signal sent by the processor 90, the cable displacement sensor 10 performs the subsequent steps of determining the displacement information of the counterweight.

[0075] That is to say, in the present invention, when it is detected that the train has passed by, the cable displacement sensor 10 is controlled to detect the displacement of the counterweight 302.

[0076] In order to improve the safety of train operation, on the basis of the above embodiments, in the present invention, the monitoring device further includes: a Hall sensor 140; the Hall sensor 140 is fixed in the housing 40 and is connected to the processor 90; when the distance between the Hall sensor 140 and the magnet 7070 fixed on the connection platform 20 is lower than a preset distance, a Hall effect is generated with the magnetic field of the magnet 7070, and a signal is sent to the processor 90; the processor 90 sends an alarm signal.

[0077] In the actual scenario, situations such as sudden collapse of utility poles may occur. At this time, if this situation is not known in time, there may be problems with the safety of train operation. Since usually when abnormal situations such as the collapse of utility poles occur, the counterweight 302 will drop. In order to accurately determine whether an abnormal situation has occurred, it can be determined whether a sudden abnormal situation has occurred by whether the counterweight 302 has dropped. In the present invention, it can be determined whether the counterweight 302 has dropped by the Hall sensor 140 and the magnet 70 disposed at a position that the counterweight 302 will approach during the dropping process.

[0078] Specifically, in order to determine whether the counterweight 302 has descended, the monitoring device further includes a Hall sensor 140. It should be noted that when the counterweight 302 descends, it will approach the connection platform, that is to say, it will approach the magnet 70 fixed on the upper surface of the connection platform. And the Hall sensor 140 is fixed in the housing. Since the housing is adsorbed on the lower surface of the counterweight 302, when the counterweight 302 descends, the Hall sensor 140 will approach the magnet 70. When the distance between the Hall sensor 140 and the magnet 70 is lower than the preset distance, the Hall sensor 140 will generate the Hall effect with the magnetic field of the magnet 70. At this time, the Hall sensor 140 can send a signal to the processor 90. After receiving the signal sent by the Hall sensor 140, the processor 90 can determine that the counterweight 302 has suddenly descended, and can preliminarily determine that there may be a sudden abnormal situation currently, and send an alarm message. Among them, when the counterweight 302 moves down to a certain position, such as 30 cm, the Hall sensor 140 is triggered by the magnet 70, and immediately reports the displacement abnormal information.

[0079] In the present utility model, the wire displacement sensor 10 is used to measure the displacement of the catenary counterweight 302, the temperature sensor is used to obtain the safety distance range caused by thermal expansion and contraction due to environmental temperature changes, the acceleration sensor is used to judge whether a train passes by. When a train passes by, the data detection of the wire displacement sensor 10 is started. The Hall sensor 140 is used for abnormal bottom detection of the counterweight 302 when not detected. The NB-IoT module is used for data transmission. When the displacement exceeds the safety distance range corresponding to the current temperature, data is reported to the section center, and the power supply end arranges maintenance personnel to check and repair.

[0080] Figure 15 Schematic diagram of a main board provided by the present utility model.

[0081] It should be noted that the temperature sensor 120, acceleration sensor 130, Hall sensor 140, etc. described in the present utility model can be freely set according to actual needs. Specifically, in the actual scenario, which sensor is included is not limited here.

[0082] In order to monitor accurately and effectively, on the basis of the above embodiments, in the present utility model, the monitoring device further includes: a power supply unit 150; the power supply unit 150 is fixed in the housing 40 and is connected to the main body 101 of the wire displacement sensor 10, the processor 90, the Hall sensor 140, the temperature sensor 120, and the acceleration sensor 130 fixed in the housing 40.

[0083] Since it is impossible to directly connect to a circuit in a railway, in the present utility model, the monitoring device may include a power supply unit 150, which may be a disposable battery. The power supply unit 150 is fixed in the housing 40 and is used to supply power to components such as the processor 90, the wire-pulling displacement sensor 10, and the Hall sensor 140.

[0084] In a possible implementation manner, the monitoring device may further include an indicator light. When the processor 90 determines that there is an abnormality currently, it can control the indicator light to present a preset color.

[0085] In the present utility model, the processor 90 may also send the power of the power supply unit to the server, which is convenient for the staff to detect the power of the power supply unit and replace the power supply unit when the power is insufficient.

[0086] In a possible implementation manner, the temperature sensor 120, the acceleration sensor 130, the Hall sensor 140, the NB-IoT module of the processor 90, the indicator light, etc. may be integrated on the main board 110.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A monitoring device for the operation of a railway catenary compensation device, characterized in that, The monitoring device includes: a wire-pulling displacement sensor, a connecting platform, and a catenary compensation device. The catenary compensation device includes a counterweight guide rod and a counterweight. The connecting platform is installed on the side wall of the counterweight guide rod, and the installation plane of the connecting platform is parallel to the ground. The wire-pulling displacement sensor includes a main body and a pull rope. The main body is arranged on the lower surface of the counterweight; one end of the pull rope is connected to the main body, and the other end is fixed on the upper surface of the connecting platform.

2. The monitoring device according to claim 1, characterized in that, The monitoring device further includes: a housing and a first connector. The main body is fixed inside the housing. There is an opening at the bottom of the housing, and the pull rope fixed at one end of the connecting platform is pulled out from the opening. The first connector fixes the housing on the lower surface of the counterweight.

3. The monitoring device according to claim 2, wherein The first connector includes a U-shaped groove and a housing connector; the U-shaped groove and the housing connector are connected. The first connector fixes the housing on the lower surface of the counterweight. Among them, the first connector is connected to the counterweight based on the U-shaped groove and is connected to the housing based on the housing connector.

4. The monitoring device according to claim 3, characterized in that, The monitoring device further includes: a counterweight base. Among them, there is a slit in the counterweight; there are multiple screw holes on the upper surface of the housing. The housing connector includes a bottom connector integrally provided and a U-shaped groove connector perpendicular to the bottom connector; the U-shaped groove is connected to the U-shaped groove connector. The bottom connector is provided with multiple screw holes, and the multiple screw holes correspond to the multiple screw holes on the upper surface of the housing; the depth of the U-shaped groove is the height of the counterweight base, and the distance between the side walls of the U-shaped groove is not greater than the minimum width of the slit. The U-shaped groove is inserted into the counterweight base through the slit of the counterweight; bolts connect the housing connector and the upper surface of the housing through the multiple screw holes of the bottom connector.

5. The monitoring device according to claim 2, wherein, The monitoring device further includes: a magnet and an automatic retractable wire reel; the automatic retractable wire reel includes a telescopic component and a safety rope. The other end of the pull rope is connected to the top of the magnet, and the other end of the pull rope is fixed on the upper surface of the connecting platform through the bottom of the magnet. The telescopic component is fixed on the upper surface of the connecting platform, one end of the safety rope is connected to the telescopic component, and the other end is connected to the top or side of the magnet.

6. The monitoring device according to claim 2, wherein, The monitoring device further includes: a processor; the processor is fixed inside the housing and is connected to the wire-pulling displacement sensor.

7. The monitoring device according to claim 6, characterized in that, The monitoring device further includes: a temperature sensor; the temperature sensor is fixed inside the housing, and the temperature sensor is connected to the processor.

8. The monitoring device according to claim 6, wherein, The monitoring device further includes: an acceleration sensor; the acceleration sensor is fixed inside the housing and is connected to the processor.

9. The monitoring device according to claim 6, characterized in that, The monitoring device further includes: a Hall sensor; the Hall sensor is fixed inside the housing and is connected to the processor.

10. The monitoring device according to any one of claims 2-9, characterized in that, The monitoring device further includes: a power supply unit; the power supply unit is fixed in the housing and is connected to the main body of the wire-pulling displacement sensor, the processor, the Hall sensor, the temperature sensor, and the acceleration sensor fixed in the housing.

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