Urban rail transit pantograph-catenary relation detection device
By designing a bow-catenary relationship detection device that integrates multiple detection modules in urban rail transit, the problems of single detection parameters and inconvenient installation of traditional devices are solved, and comprehensive, accurate and efficient real-time monitoring and evaluation of the bow-catenary relationship is achieved.
Patent Information
- Application Number
- CN202422889358.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Traditional bow-catenary system detection devices have single detection parameters, complex equipment, and are inconvenient to install and difficult to adjust. It is difficult to comprehensively, accurately and efficiently monitor and evaluate the bow-catenary relationship in real time.
A pantograph-catenary relationship detection device for urban rail transit was designed, which included a profile bracket and an adjustable support. It integrated geometric parameters, hard points, contact network wear, pantograph-catenary temperature and arcing detection modules. The modules were flexibly installed and angled by adjustable supports and fixed screws to adapt to different vehicle models and pantograph-catenary systems.
It realizes comprehensive, accurate and efficient real-time monitoring and evaluation of the bow-catenary relationship, and improves the accuracy of detection data and the versatility of the device.
Smart Images
Figure CN223319754U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of urban rail transit detection, and in particular relates to a device for detecting the relationship between a bow and a catenary of an urban rail transit. Background Art
[0002] In urban rail transit systems, good contact between the pantograph and the catenary is crucial for stable power supply and safe operation of trains. Abnormalities in the pantograph-catenary relationship can lead to problems such as arcing, uneven wear, and poor contact. These problems can directly impact power supply quality, reduce equipment life, and even endanger train safety.
[0003] Traditional bow-catenary system detection devices often have defects such as single detection parameters or complex detection equipment that is inconvenient to install and difficult to adjust, making it difficult to comprehensively, accurately and efficiently monitor and evaluate the bow-catenary relationship in real time. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an urban rail transit bow-net relationship detection device, which solves the problems of traditional bow-net system detection devices having single detection parameters, complex detection equipment, inconvenient installation, and difficulty in adjustment.
[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a device for detecting the relationship between a pantograph and a catenary in urban rail transit, comprising a profile bracket that can be installed on a rail vehicle, and an adjustable support provided on the profile bracket;
[0006] The adjustable support includes a mounting base and a mounting seat that can be slidably connected to the profile bracket in a direction perpendicular to the running direction of the rail vehicle and in the running direction of the rail vehicle. The mounting seat can be fixed to the profile bracket by bolts. The mounting base can be installed with a geometric parameter detection module, a hard point detection module, a contact network wear detection module, a pantograph temperature detection module, and an arc detection module.
[0007] Among them, a group of arc-shaped slots are symmetrically opened on the mounting seat, and a number of hollow tubes that can be slidably connected to the arc-shaped slots are respectively provided at both ends of the mounting base, and a fixing screw that can pass through the hollow tube is passed through the arc-shaped slots on the mounting seat.
[0008] Optionally, the profile bracket includes a plurality of alloy profiles arranged perpendicular to the direction of movement of the rail vehicle or the direction of movement of the rail vehicle, and the plurality of alloy profiles are detachably connected via right-angle brackets.
[0009] Optionally, the geometric parameter detection module includes a power supply, a laser triangulation sensor and an industrial camera.
[0010] Optionally, the hard point detection module includes an industrial camera and a detection mark that can be pasted on the pantograph.
[0011] Optionally, the contact network wear detection module includes a high-precision laser and a high-definition linear array camera.
[0012] Optionally, the bow-cat temperature detection module is an infrared thermal imager.
[0013] Optionally, the arc detection module includes an ultraviolet camera, an infrared camera and a visible light camera.
[0014] Optionally, several Hall current sensors that can be electrically connected to the pantograph are also included.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) By flexibly setting the mounting base on the profile bracket, the installation positions of the geometric parameter detection module, hard point detection module, contact network wear detection module, bow-net temperature detection module and arc detection module can be flexibly adjusted according to actual needs to target different vehicle models or different bow-net systems. At the same time, the mounting base can rotate with the straight line where the arc centers of the two arc-shaped slots are located as the rotation axis, so as to facilitate the realization of the personalized requirements of each module for the detection angle. It is convenient for each module to obtain the best detection angle, ensure the accuracy of the detection data, and improve the versatility of the device;
[0017] (2) Multiple detection modules are integrated on the profile bracket, which can detect multiple detection targets of the rail bow-net system at the same time, facilitating comprehensive, accurate and efficient real-time monitoring and evaluation of the bow-net relationship. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a structural diagram of a device for detecting the relationship between a pantograph and a catenary in urban rail transit in a preferred embodiment of the present utility model;
[0020] Figure 2 This is a structural diagram of the mounting base, mounting base plate and fixing screw in a preferred embodiment of the present invention;
[0021] Among them, 1. Profile bracket; 101. Alloy profile; 102. Right-angle bracket; 2. Mounting base; 201. Hollow tube; 3. Mounting seat; 301. Arc slot hole; 4. Fixing screw. DETAILED DESCRIPTION
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.
[0023] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0024] like Figure 1-Figure 2 As shown, a device for detecting the relationship between a bow and a catenary of urban rail transit includes a profile bracket 1 that can be installed on a rail vehicle, and an adjustable support provided on the profile bracket 1. The profile bracket 1 includes a plurality of alloy profiles 101 arranged in a direction perpendicular to the direction of operation of the rail vehicle or the direction of operation of the rail vehicle. The plurality of alloy profiles 101 are detachably connected by right-angle brackets 102. The structure is stable and has strong versatility, which is convenient for expansion. Furthermore, the adjustable support includes a mounting base 2 and a mounting base 3 that can be slidably connected to the profile bracket 1 in a direction perpendicular to the direction of operation of the rail vehicle and the direction of operation of the rail vehicle. The mounting base 3 can be fixed to the profile bracket 1 by bolts. The mounting base 2 can be installed with a geometric parameter detection module, a hard point detection module, a contact network wear detection module, a bow and a catenary temperature detection module, and an arc detection module. By flexibly setting the mounting base 3 on the profile bracket 1, the installation positions of the geometric parameter detection module, the hard point detection module, the contact network wear detection module, the bow-net temperature detection module, and the arc detection module can be flexibly adjusted according to actual needs. In different vehicle models or different bow-net systems, the position of each module can be conveniently adjusted. At the same time, in this technical solution, multiple detection modules are integrated on the profile bracket 1, and the entire device can simultaneously detect multiple detection targets of the track bow-net system, facilitating comprehensive, accurate, and efficient real-time monitoring and evaluation of the bow-net relationship.
[0025] Furthermore, in order to facilitate the flexible adjustment of the detection angle of each module, such as Figure 2 As shown, the mounting base 3 is symmetrically provided with a set of arc-shaped slots 301. The mounting base 2 is provided at each end with a plurality of hollow tubes 201 that can be slidably connected to the arc-shaped slots 301. This means that the mounting base 2 can rotate about the straight line containing the arc centers of the two arc-shaped slots 301, thereby facilitating the realization of the personalized detection angle requirements of each module. Furthermore, a fixing screw 4 that can penetrate the hollow tube 201 is provided on the mounting base 3 through the arc-shaped slots 301. This fixing screw 4 can be used to tighten the relative position between the mounting base 3 and the mounting base 2, thereby facilitating the fixing of the mounting base 2 at a certain tilt angle to obtain the optimal detection angle, ensure the accuracy of the detection data, and improve the versatility of the device.
[0026] In this technical solution, the geometric parameter detection module includes a power supply, a laser triangulation sensor and an industrial camera. The power supply, the laser triangulation sensor and the industrial camera are all existing technologies, and can dynamically obtain the spatial position image of one or more contact network wires, and can calculate the spatial coordinates of the contact network wires through the machine vision algorithm in the existing technology, and then obtain the required conductor height, pull-out value, and horizontal / vertical distance between the wires and other data to meet the needs of geometric parameter detection.
[0027] Furthermore, the hard point detection module includes an industrial camera and a detection mark that can be pasted on the pantograph. The industrial camera and the detection mark are both existing technologies. The industrial camera can capture the up and down movement of the pantograph through the detection mark, and calculate the displacement change of the detection mark to obtain the speed and acceleration of the detection mark change. Finally, based on the relationship between acceleration, pressure and lift obtained from different pantograph calibration tests, data such as the contact pressure between the pantograph and the contact network when the vehicle is running is obtained.
[0028] Furthermore, the contact network wear detection module includes a high-precision laser and a high-definition linear array camera. Both the high-precision laser and the high-definition linear array camera are existing technologies. Through the high-precision laser and the high-definition linear array camera, the outer contour of the contact wire in the contact network can be measured. By analyzing the outer contour curve of the wire, the wear value of the contact wire in the contact network can be analyzed.
[0029] Furthermore, the bow-net temperature detection module is an infrared thermal imager, which is a prior art. That is, the detection light on the infrared thermal imager can directly illuminate the contact line, thereby measuring the contact line temperature in real time.
[0030] Furthermore, the arc detection module includes an ultraviolet camera, an infrared camera, and a visible light camera. These cameras are all existing technologies and can capture arcing caused by contact between the contact wire and the pantograph. At the moment of arcing, the ultraviolet image captured by the ultraviolet camera will show an ultraviolet spot image, and the infrared image captured by the infrared camera will show an extremely high temperature fault point. The ultraviolet and infrared images can be used to extract arcing characteristics and fault points. Combined with visible light video or images, the occurrence and duration of arcing can be determined by calculation, allowing real-time monitoring of arcing on the contact wire and pantograph.
[0031] On the basis of the first embodiment, the urban rail transit pantograph-network relationship detection device further includes a plurality of Hall current sensors that can be electrically connected to the pantograph. The Hall current sensor is a prior art. The Hall current sensor is clamped on the output cable of the pantograph. The Hall current sensor can collect the current of the pantograph in real time. The collected information can be linearly transformed to obtain the voltage signal of the pantograph, and the voltage signal can be transmitted to the electronic components in the prior art, such as the controller unit, for analysis.
[0032] Working principle: By flexibly setting the mounting base 3 on the profile bracket 1, the installation positions of the geometric parameter detection module, hard point detection module, contact network wear detection module, bow-net temperature detection module and arc detection module can be flexibly adjusted according to actual needs. The position of each module can be conveniently adjusted in different vehicle models or different bow-net systems. The mounting base 2 can rotate with the straight line where the arc center of the two arc-shaped slots 301 is located as the rotation axis, so as to facilitate the realization of the personalized needs of each module for the detection angle. At the same time, multiple detection modules are integrated on the profile bracket 1, and multiple detection targets of the track bow-net system can be detected at the same time, which is convenient for comprehensive, accurate and efficient real-time monitoring and evaluation of the bow-net relationship. At the same time, a fixing screw 4 that can pass through the hollow tube 201 is provided on the mounting base 3 through the arc-shaped slot 301. The fixing screw 4 can tighten the relative position between the mounting base 3 and the mounting base 2, thereby facilitating the fixing of the mounting base 2 at a certain tilt angle so that each module can obtain the best detection angle, ensure the accuracy of the detection data, and improve the versatility of the device.
[0033] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A device for detecting the relationship between a pantograph and a catenary in urban rail transit, characterized by: It comprises a profile bracket (1) that can be mounted on a rail vehicle, and an adjustable support provided on the profile bracket (1); The adjustable support comprises a mounting base (2) and a mounting seat (3) capable of being slidably connected to the profile bracket (1) in a direction perpendicular to the running direction of the rail vehicle and in the running direction of the rail vehicle, the mounting seat (3) being capable of being fixed to the profile bracket (1) by bolts, and a geometric parameter detection module, a hard point detection module, a contact network wear detection module, a pantograph temperature detection module and an arcing detection module being capable of being installed on the mounting base (2); A group of arc-shaped slots (301) are symmetrically provided on the mounting seat (3), a plurality of hollow tubes (201) capable of being slidably connected to the arc-shaped slots (301) are respectively provided at both ends of the mounting base (2), and a fixing screw (4) capable of passing through the hollow tube (201) is passed through the arc-shaped slots (301) on the mounting seat (3).
2. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The profile bracket (1) comprises a plurality of alloy profiles (101) arranged perpendicular to the direction in which the rail vehicle runs or the direction in which the rail vehicle runs, and the plurality of alloy profiles (101) are detachably connected via right-angle brackets (102).
3. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The geometric parameter detection module includes a power supply, a laser triangulation sensor and an industrial camera.
4. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The hard point detection module includes an industrial camera and a detection mark that can be attached to the pantograph.
5. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The contact network wear detection module includes a high-precision laser and a high-definition linear array camera.
6. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The pantograph-catenary temperature detection module is an infrared thermal imager.
7. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: The arc detection module includes an ultraviolet camera, an infrared camera and a visible light camera.
8. The urban rail transit pantograph-catenary relationship detection device according to claim 1, characterized in that: It also includes several Hall current sensors that can be electrically connected to the pantograph.