Railway overhead line system fault distance measuring device

Abstract

The utility model discloses a railway contact network fault distance measuring device, which comprises a pantograph body, a positioning annunciator, a short circuit position positioner and a server, and is characterized in that the pantograph body comprises a graphene sliding plate, an elastic piece, a mounting rod, a bottom plate, a pressure detector, a signal transmitter and a pantograph body; combinations of positioning annunciators and short-circuit position positioners are arranged on a railway contact network section at equal intervals, the short-circuit position positioners are electrically connected with the positioning annunciators, and a positive wire and a negative wire on the short-circuit position positioners are electrically connected with a positive electrode and a negative electrode of a railway contact network respectively. When the railway overhead line system deforms and droops, the graphene sliding plate is pressed to move downwards and then touches the elastic detection piece, the signal transmitter transmits deformation information, the positioning signal device receiving the deformation information transmits a signal to the server so as to determine the approximate deformation position, and the short-circuit position positioner detects the short-circuit position. And the corresponding positioning annunciator sends the information of the short circuit position to the server.

Description

Technical Field

[0001] The utility model relates to the technical field of railway contact network faults, in particular to a railway contact network fault distance measuring device. Background Art

[0002] The contact network is a high-voltage transmission line that is erected in a zigzag shape above the rails in an electrified railway and is used by the pantograph to draw current. The contact network is the main structure of the railway electrification project. It is a special form of transmission line erected above the railway line to supply power to electric locomotives. It consists of contact suspension, support device, positioning device, pillars and foundation. The traditional zigzag frame cannot identify the deformation of the cable. When the drooping deformation is serious, it will increase the wear on the graphene skateboard and affect the transmission of electricity. It is generally impossible to determine the drooping position of the cable by deformation. It is even more difficult to judge the short circuit of the cable, and generally requires inspection, which is time-consuming and labor-intensive. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to propose a railway contact network fault distance measurement device, which solves the problems of difficulty in determining the short circuit position of the railway contact network, troublesomeness in determining the cable sag, and difficulty in determining the sag position.

[0004] According to the utility model, a railway contact network fault distance measuring device comprises a pantograph body, a positioning signal device, a short circuit position locator and a server. The pantograph body comprises a graphene slide plate, an elastic member, a mounting rod, a bottom plate, a pressure detector, a signal transmitter and a pantograph body. The lower surface of the graphene slide plate is mounted on the mounting rod through elastic members near both ends. The mounting rod is fixed on the bottom plate. An elastic detection sheet is provided on the pressure detector and the elastic detection sheet extends below the graphene slide plate. The pressure detector is electrically connected to the signal transmitter. The pressure detector and the signal transmitter are fixed on the bottom plate. The bottom plate is mounted on the top of the pantograph body. A combination of a positioning signal device and a short circuit position locator is evenly spaced on the railway contact network section. The short circuit position locator is electrically connected to the positioning signal device. The positive and negative wiring on the short circuit position locator are electrically connected to the positive and negative electrodes of the railway contact network respectively. When the elastic detection sheet is pressed downward, the pressure detector sends the railway contact network deformation information to the positioning signal device through the signal transmitter, and the positioning signal device sends the collected information to the server in real time.

[0005] In some embodiments of the present invention, the transmission range of the signal transmitter is not greater than twice the distance between adjacent positioning signal devices, but the transmission range is at least greater than one time the distance between adjacent positioning signal devices.

[0006] In other embodiments of the present invention, the pressure detector can detect the degree of deformation of the elastic detection piece, and the pressure detector transmits different signals to the signal transmitter according to the degree of deformation of the elastic detection piece.

[0007] In some other embodiments of the present invention, the short circuit position locator is a current detector.

[0008] In some other embodiments of the present invention, the elastic member includes a sleeve, a telescopic rod and a spring, the telescopic rod is inserted from the top of the sleeve, and the bottom end of the telescopic rod abuts against the spring arranged in the sleeve.

[0009] In other embodiments of the present invention, each of the positioning signalers is numbered according to the distance from the server.

[0010] In the utility model, when the railway contact network is deformed and drooped, a greater downward pressure will be generated to press down the graphene skateboard. After the graphene skateboard is pressed and moved downward, it will touch the elastic detection sheet. The pressure detector will transmit information to the signal transmitter according to the deformation amount of the elastic detection sheet. The signal transmitter will send out the deformation information. The positioning signal device arranged around the sending position will receive the information. The positioning signal device that receives the deformation information will send the signal to the server to determine the approximate position of the deformation. When the short-circuit position locator detects the short-circuit position, the corresponding positioning signal device will send the information of the short-circuit position to the server. Therefore, the deformation position and the short-circuit position can be accurately determined, and the distance from the fault force server can be determined more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 The utility model is a schematic diagram of the principle of a railway contact network fault distance measuring device.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the pantograph body on the graphene skateboard proposed by the utility model.

[0014] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the pantograph body proposed in the utility model.

[0015] Figure 4 The utility model is a schematic diagram of the principle of a railway contact network fault distance measuring device in a short circuit.

[0016] In the figure: 1. Railway contact network; 2. Pantograph body; 21. Graphene skateboard; 22. Elastic member; 221. Telescopic rod; 222. Sleeve; 223. Spring; 23. Mounting rod; 24. Bottom plate; 3. Positioning signaler; 4. Short circuit position locator; 5. Elastic detection sheet; 51. Pressure detector; 6. Signal transmitter;. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] Reference Figure 1-4 A railway contact network fault distance measuring device comprises a pantograph body 2, a positioning signal device 3, a short circuit position locator 4 and a server. The pantograph body 2 comprises a graphene skateboard 21, an elastic member 22, a mounting rod 23, a bottom plate 24, a pressure detector 51, a signal transmitter 6 and a pantograph body. The lower surface of the graphene skateboard 21 is mounted on the mounting rod 23 through the elastic member 22 near both ends. The mounting rod 23 is fixed on the bottom plate 24. The pressure detector 51 is provided with an elastic detection sheet 5 and the elastic detection sheet 5 extends below the graphene skateboard 21. The pressure detector 51 is electrically connected to the signal transmitter 6. The pressure detector 51 and the signal transmitter 6 are fixed on the base plate 24, and the base plate 24 is installed on the top of the bow body. A combination of a positioning signaler 3 and a short-circuit position locator 4 is evenly spaced on the section of the railway contact network 1. The short-circuit position locator 4 is electrically connected to the positioning signaler 3, and the positive and negative wiring on the short-circuit position locator 4 are electrically connected to the positive and negative poles of the railway contact network 1 respectively. When the elastic detection piece 5 is pressed downward, the pressure detector 51 sends the deformation information of the railway contact network 1 to the positioning signaler 3 through the signal transmitter 6, and the positioning signaler 3 sends the collected information to the server in real time.

[0020] During the travel of high-speed rail or EMU, the pantograph body 2 on the top is in contact with the railway contact network 1, and the graphene skateboard 21 is in elastic contact with the railway contact network 1. When the railway contact network 1 is deformed and droops (the deformation exceeds the specified deformation amount), the graphene skateboard 21 will be subjected to greater downward pressure. Since the elastic member 22 below the graphene skateboard 21 has a certain elasticity, the graphene skateboard 21 is easier to move downward, but it does not affect the contact power supply. The downward-moving graphene skateboard 21 will press down the elastic detection piece 5, and the elastic detection piece 5 will be deformed to varying degrees due to the downward movement of the graphene skateboard 21. The pressure detector 51 transmits information to the signal transmitter 6 according to the deformation degree information of the elastic detection piece 5 (similar to a short-distance pager, sending information within a certain range, generally within 1 kilometer, and an enhanced signal transmission can be set to reach 2 kilometers). The positioning signaler 3 within the transmission range will be able to receive the sent information, so that after receiving the sent information, the positioning signaler 3 sends the information to the server to determine the approximate position of the droop, and the droop position can be quickly found.

[0021] When the railway contact network is short-circuited, the entire railway contact network needs to be powered off, otherwise it will cause damage to the railway contact network. If the power-on detection resistance is used, the measurement accuracy is not high and the error is large. This application adopts a short-circuit position locator 4 (such as Figure 4 ), when a short circuit occurs, disconnect the overall power supply of the railway contact network, and remotely control the short circuit position locator 4. If the short circuit position is very close to the short circuit position locator 4, a loop will be formed, and the short circuit position locator 4 will be able to detect a certain current. If the short circuit is far away, the longer the railway contact network is, the longer the short circuit length is, and the greater the resistance is, the current of the short circuit position locator 4 will be smaller under a constant voltage. In this way, the short circuit position range can be determined to a certain extent. The short circuit position locator 4 sends the short circuit position range to the server for positioning.

[0022] The transmission range of the signal transmitter 6 is not greater than twice the distance between adjacent positioning signal devices 3 , but the transmission range is at least greater than one time the distance between adjacent positioning signal devices 3 .

[0023] The signal sent by the signal transmitter 6 will be received by at most four positioning signal devices 3 to ensure the accuracy of the range determination, but at least two will be guaranteed to ensure that the signal can be received.

[0024] The pressure detector 51 can detect the deformation degree of the elastic detection piece 5, and transmits different signals to the signal transmitter 6 according to the deformation degree of the elastic detection piece 5. Not only can the deformation position be determined, but also the approximate deformation amount can be determined according to the signal degree.

[0025] The short-circuit position locator 4 is a current detector, which determines the short-circuit position according to the resistance when power is turned on.

[0026] The elastic member 22 includes a sleeve 222, a telescopic rod 221 and a spring 223. The telescopic rod 221 is inserted from the top of the sleeve 222, and the bottom end of the telescopic rod 221 abuts against the spring 223 disposed in the sleeve 222. This facilitates the elastic contact between the graphene slide 21 and the railway contact network 1.

[0027] Each of the positioning signal devices 3 is numbered according to the distance from the server. Similar to a mobile phone number, the fault location can be determined based on the number, thereby determining the distance between the fault and the server.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A railway contact network fault distance measuring device, characterized in that: The invention comprises a pantograph body (2), a positioning signal device (3), a short-circuit position locator (4) and a server. The pantograph body (2) comprises a graphene slide plate (21), an elastic member (22), a mounting rod (23), a bottom plate (24), a pressure detector (51), a signal transmitter (6) and a pantograph body. The lower surface of the graphene slide plate (21) is mounted on the mounting rod (23) through the elastic member (22) near both ends. The mounting rod (23) is fixed on the bottom plate (24). The pressure detector (51) is provided with an elastic detection sheet (5) and the elastic detection sheet (5) extends below the graphene slide plate (21). The pressure detector (51) is electrically connected to the signal transmitter (6). The detector (51) and the signal transmitter (6) are fixed on a bottom plate (24), the bottom plate (24) is installed on the top of the bow body, and a combination of a positioning signal device (3) and a short-circuit position locator (4) is arranged at equal intervals on a section of a railway contact network (1), the short-circuit position locator (4) is electrically connected to the positioning signal device (3), and the positive and negative wiring on the short-circuit position locator (4) are electrically connected to the positive and negative electrodes of the railway contact network (1) respectively. When the elastic detection piece (5) is pressed downward by force, the pressure detector (51) sends the deformation information of the railway contact network (1) to the positioning signal device (3) through the signal transmitter (6), and the positioning signal device (3) sends the collected information to a server in real time.

2. A railway contact network fault distance measuring device according to claim 1, characterized in that: The transmission range of the signal transmitter (6) is no greater than twice the distance between adjacent positioning signal devices (3), but the transmission range is at least greater than once the distance between adjacent positioning signal devices (3).

3. A railway contact network fault distance measuring device according to claim 1, characterized in that: The pressure detector (51) can detect the degree of deformation of the elastic detection piece (5), and the pressure detector (51) transmits different signals to the signal transmitter (6) according to the degree of deformation of the elastic detection piece (5).

4. A railway overhead line fault distance measuring device according to claim 1, characterized in that: The short-circuit position locator (4) is a current detector.

5. A railway contact network fault distance measuring device according to claim 1, characterized in that: The elastic member (22) comprises a sleeve (222), a telescopic rod (221) and a spring (223); the telescopic rod (221) is inserted from the top of the sleeve (222), and the bottom end of the telescopic rod (221) abuts against the spring (223) arranged in the sleeve (222).

6. A railway overhead line fault distance measuring device according to claim 1, characterized in that: Each of the positioning signalers (3) is numbered according to the distance from the server.

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