Optical device for pantograph-catenary separation arc simulation

Abstract

The utility model discloses an optical device for pantograph-catenary separation arc simulation. The optical device comprises two light splitting monochromators, an optical shutter, a light source and a servo motor, wherein the two light splitting monochromaters are respectively arranged on two sides of the optical shutter, light inlets of the two light splitting monochromaters have an overlapping area, and the optical shutter is arranged in the overlapping area; the optical shutter comprises a diaphragm disc, light through holes are formed in the diaphragm disc every preset angle, the diaphragm disc is connected to a servo motor, and the servo motor is used for driving the diaphragm disc to rotate; the light source is installed on the back face of the diaphragm disc, the back face of the diaphragm disc is in the direction perpendicular to a straight line, the straight line is formed by the two light splitting monochromators and the optical shutter, and the light source is a full-spectrum light source meeting the pantograph-catenary separation arc simulation detection requirement. According to the utility model, the time control precision of pantograph-catenary separation arc simulation can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pantograph-catenary separation arc detection, in particular to an optical device for pantograph-catenary separation arc simulation. Background Technique

[0002] This section aims to provide background or context for the embodiments of the utility model described in the claims. The descriptions herein are not admitted to be prior art merely because they are included in this section.

[0003] At present, in the development and test of the pantograph-catenary separation arc detection system, electrical means are basically used for arc generation and simulation. The characteristics of electrical means are that they can fully simulate the voltage level and electrode material when pantograph-catenary separation occurs on the actual line. However, due to the limitation of insulation requirements, the quality of the mechanical devices used to control the contact and separation of the discharge electrodes is generally large. At the same time, due to the existence of the conditions for maintaining and extinguishing the arc, the duration of the inter-electrode arc cannot be completely synchronized with the control command.

[0004] The existing determination of the pantograph-catenary separation arc intensity uses the duration index, but the time control accuracy of the electrical means for pantograph-catenary separation arc ignition simulation is difficult to meet the technical conditions requirements of the detection system, and it cannot provide an accurate and credible relative true value for qualified assessment, resulting in the lack of unified inspection standards and means for related detection products. Summary of the Utility Model

[0005] The embodiment of the utility model provides an optical device for pantograph-catenary separation arc simulation to solve the problem that the time control accuracy of the existing electrical simulation means is relatively low and cannot meet the product development and inspection requirements. The device includes: two spectroscopes, an optical shutter, a light source, and a servo motor; wherein,

[0006] The two spectroscopes are respectively installed on both sides of the optical shutter, and there is an overlapping area at the light inlet of the two spectroscopes, and the optical shutter is installed in the overlapping area;

[0007] The optical shutter includes a diaphragm disk, and a light passing hole is opened at a preset angle on the diaphragm disk. The diaphragm disk is connected to the servo motor, and the servo motor is used to drive the diaphragm disk to rotate;

[0008] The light source is installed on the back of the diaphragm disk, the back of the diaphragm disk is in the direction perpendicular to the straight line, the straight line is the straight line formed by the two spectroscopes and the optical shutter, and the light source is a full-spectrum light source that meets the requirements of pantograph-catenary separation arc simulation detection.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the optical device of the present utility model, a full-spectrum light source and a monochromator that meet the requirements of pantograph-catenary separation arc simulation detection are adopted, which can present a spectrum within the spectral characteristic wavelength range of the arc light generated by pantograph-catenary off-line arcing. The illumination time can be preset through a high-speed optical shutter, that is, the preset simulation time of pantograph-catenary off-line arcing, which helps to calculate the accurate illumination time and improve the time control accuracy of pantograph-catenary separation arc simulation.

[0011] 2. In the optical device of the present utility model, a double-spectroscopic monochromator design is adopted, which can compare and debug the measurement results of different pantograph-catenary separation arc detection systems under the same light source, thereby verifying and improving the consistency of the detection system and meeting the product development and inspection requirements of the pantograph-catenary separation arc detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. In the drawings:

[0013] Figure 1 is a schematic structural diagram of the optical device for pantograph-catenary separation arc simulation in the embodiment of the present utility model;

[0014] Figure 2 is a schematic rear view structural diagram of the optical device for pantograph-catenary separation arc simulation in the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer and more understandable, the following will further describe the embodiments of the present utility model in detail with reference to the drawings. Herein, the illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, but not to limit the present utility model.

[0016] The objective of the present utility model is to provide an optical device for simulating the duration of pantograph-catenary separation arc, so as to solve the problem that the time control accuracy of existing electrical simulation means is relatively low and cannot meet the product development and inspection requirements as mentioned in the above background technology.

[0017] To achieve the above objective, the present utility model provides the following technical solutions:

[0018] Figure 1 is a schematic structural diagram of the optical device for pantograph-catenary separation arc simulation in the embodiment of the present utility model, as Figure 1As shown, an optical device for pantograph-catenary separation arc simulation includes: two spectro-monochromators 1, an optical shutter 3, a light source 5, and a servo motor 2; wherein,

[0019] The two spectro-monochromators 1 are respectively installed on both sides of the optical shutter 3. The light input ports of the two spectro-monochromators 1 have an overlapping area, and the optical shutter 3 is installed in the overlapping area;

[0020] The optical shutter includes a diaphragm disk 6. A light passing hole is opened on the diaphragm disk 6 at every preset angle. The diaphragm disk 6 is connected to the servo motor 2, and the servo motor 2 is used to drive the diaphragm disk 6 to rotate;

[0021] The light source 5 is installed on the back of the diaphragm disk 6. The back of the diaphragm disk 6 is in the direction perpendicular to the straight line. The straight line is the straight line formed by the two spectro-monochromators 1 and the optical shutter 3, that is, the light source 5 and the diaphragm disk 6 are on the same straight line. The light source 5 is a full-spectrum light source that meets the requirements of pantograph-catenary separation arc simulation detection. The installation position of the light source 5 is not limited to Figure 1 the position shown in

[0022] In one embodiment, the light source is an ultraviolet-enhanced xenon lamp.

[0023] In one embodiment, a backplane dark box is installed in the overlapping area, and the diaphragm disk 6 is installed in the backplane dark box.

[0024] In one embodiment, the optical device is further provided with a degree mirror, and the degree mirror is symmetric about the symmetry center line of the light source.

[0025] In the embodiment of the present utility model, the optical device can be used for comparing the pantograph-catenary off-line arcing time.

[0026] Reference Figure 1 、 Figure 2 In the embodiment of the present utility model, an optical device for pantograph-catenary separation arc simulation can be provided. The optical device is used for comparing the pantograph-catenary off-line arcing time and includes: a high-speed optical shutter 3. As shown in Figure 2 , spectro-monochromators are respectively installed on the left and right sides of the optical shutter 3. One of them is the spectro-monochromator 1. The optical shutter 3 can include a diaphragm disk 6, and the diaphragm disk 6 is driven by the servo motor 2. A backplane dark box 4 is installed at the light input port of the spectro-monochromator 1, and the diaphragm disk 6 is installed in the backplane dark box 4. The servo motor 2 and the diaphragm disk 6 are connected to each other, and the diaphragm disk 6 enables the spectro-monochromator to periodically receive the light source signal.

[0027] Specifically, the spectro-monochromator 1 splits the full-spectrum light source into spectral bands required for detection. An optical shutter 3 is installed on the spectro-monochromator 1. The optical shutter 3 can preset the illumination time, which is convenient for subsequent calculation of the precise illumination time in combination with a high-speed and high-precision synchronous data acquisition system (this synchronous data acquisition system can include a data acquisition card, transmission cables, control equipment, etc.), improving the accuracy of the test and avoiding misjudgment. A light aperture disk 6 has a light passing hole opened at a fixed angle interval. The servo motor 2 can drive the light aperture disk 6 to rotate, and the position of the light passing hole on the light aperture disk 6 can be adjusted. The switching time of the optical shutter 3 can reach 0.1 ms, thus accurately recording the arcing time.

[0028] A light source 5 is arranged behind the light aperture disk 6. The light source 5 can use an ultraviolet-enhanced xenon lamp. Through the ultraviolet-enhanced xenon lamp, a full-spectrum light source that meets the detection requirements can be obtained and focused on the light input ports of the two spectro-monochromators 1.

[0029] When using the optical device for pantograph-catenary separation arc simulation of the present utility model, it can be used in combination with a synchronous data acquisition system. When in use, turn on the light source 5. The light source 5 uses an ultraviolet-enhanced xenon lamp to provide a full-spectrum light source that meets the detection requirements and focuses on the light input ports of the two spectro-monochromators 1. Secondly, a high-speed optical shutter 3 is arranged at the light input port of the spectro-monochromator 1. At the same time, a light aperture disk 6 is arranged on the backplane dark box 4. The light aperture disk 6 has a light passing hole opened at a fixed angle interval. The light aperture disk 6 is driven by the servo motor 2. By setting the rotation speed of the servo motor 2, the time for each light passing hole of the light aperture disk 6 to pass through the light input port of the spectro-monochromator 1 can be calculated. Then, the spectro-monochromator 1 splits the full-spectrum light source into spectral bands required for detection. The acquisition frequency of the synchronous data acquisition card is 1 MHz, which can meet the minimum counting interval of 1 microsecond. The illumination time can be calculated by the number of acquired data.

[0030] The beneficial effects of the present utility model are as follows:

[0031] 1. In the optical device of the present utility model, a high-speed optical shutter presets the illumination time. Through this optical device, accurate data can be collected, the precise illumination time can be calculated, the pantograph-catenary arcing time can be simulated, and the accuracy of the test can be improved.

[0032] 2. In the optical device of the present utility model, an ultraviolet-enhanced xenon lamp and a monochromator present a spectrum within the spectral characteristic wavelength range of the arc light generated by pantograph-catenary off-line arcing. Through the high-speed optical shutter, the illumination time can be preset, that is, the pantograph-catenary off-line arcing time can be preset. Further, the precise illumination time can be calculated through data acquisition by a high-speed and high-precision synchronous data acquisition card, operation software, etc.

[0033] 3. In the present utility model, the optical device adopts a double-spectroscopic monochromator design, which can compare and debug the measurement results of different detection systems under the same light source, thereby verifying and improving the consistency of the detection systems.

[0034] It should be noted that in the present utility model, time refers to the meaning of a time period or duration.

[0035] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An optical device for simulating a pantograph-catenary separation arc, characterized in that: include: Two spectroscopic monochromators, optical shutter, light source, servo motor; among them, Two spectroscopic monochromators are respectively installed on both sides of the optical shutter, the light entrances of the two spectroscopic monochromators have an overlapping area, and the optical shutter is installed in the overlapping area; The optical shutter includes a light barrier plate, on which a light hole is provided at every preset angle, and the light barrier plate is connected to a servo motor, which is used to drive the light barrier plate to rotate; The light source is installed on the back of the light barrier plate, the back of the light barrier plate is perpendicular to the straight line, the straight line is a straight line formed by two spectroscopic monochromators and an optical shutter, and the light source is a full-spectrum light source that meets the requirements of bow-net separation arc simulation detection.

2. The optical device according to claim 1, characterized in that The light source is an ultraviolet enhanced xenon lamp.

3. The optical device according to claim 1, wherein: The overlapping area is provided with a back panel dark box, and the light barrier plate is provided in the back panel dark box.

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