Contact network detection calibration ruler for railway power supply

Abstract

The utility model relates to the technical field of rail transit, and provides an overhead line system detection calibration ruler for railway power supply. The overhead line system detection calibration ruler for railway power supply comprises a bottom plate, a scale base, a scale plate, a calibration plate, an adjusting mechanism, a magnetic attraction mechanism and a wire clamping mechanism, the scale base is fixedly connected to the upper surface of the bottom plate, a storage groove is formed in the upper surface of the scale base, the scale plate is arranged in the storage groove, and fixing plates are fixedly connected to the two side faces of the scale plate; a telescopic rod is fixedly connected to the lower surface of the fixing plate, the lower end of the telescopic rod is fixedly connected with the inner lower surface of the storage groove, a mounting groove is formed in the front end face of the scale plate, and a matched calibration plate is fixedly mounted in the mounting groove. According to the overhead line system detection calibration ruler for railway power supply provided by the utility model, through the arrangement of the adjusting mechanism, continuous height conduction simulation can be realized, the requirement of repeated verification is met, and the diversity and accuracy of calibration data are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a contact network detection calibration ruler for railway power supply. Background Art

[0002] The catenary, as the equipment that directly supplies power to electric locomotives, has a direct impact on train safety and transportation efficiency. Catenary inspection is a crucial component of rail transit, particularly in electrified railways and urban rail transit systems. Catenary inspection is based on the principle of triangulation and is performed using industrial cameras and various sensors installed on the baseline. Prior to inspection, these cameras and sensors must be calibrated to correct their parameters. Currently, calibration tests for catenary inspection are performed using a calibration ruler.

[0003] China's utility model patent proposes a contact network inspection calibration ruler (Announcement No.: CN 222505218 U) includes a scale base, the bottom of the scale base is fixedly connected to the base plate, and the scale base is provided with a scale plate that can move along the height direction of the scale base through a sliding groove, and a limit assembly is provided at the bottom of the scale plate, and the scale plate is positioned and fixed on the scale base through the limit assembly, and a wire clamp mechanism is detachably installed on the scale plate through a positioning hole, and a calibration plate is embedded and installed at a position below the positioning hole on the scale plate, and the limit assembly includes a mounting groove opened near the bottom of the scale plate, and a limit terminal is provided in the mounting groove. The contact network detection calibration ruler can simulate contact networks with different conduction heights when calibrating the contact network detection equipment by being positioned in different positioning holes. However, during its adjustment process, it can only achieve fixed gear adjustment through the positioning holes, resulting in the conduction height simulation being unable to meet the continuous gradient change, reducing the diversity and accuracy of the calibration data. Secondly, the wire clamping mechanism needs to manually squeeze the plug plate to deform it to pass through the positioning hole, and then rely on elastic reset to fix it, which is more troublesome to disassemble and assemble.

[0004] Therefore, it is necessary to provide a new railway power supply contact network detection calibration ruler to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a contact network detection calibration ruler for railway power supply.

[0006] The utility model provides a railway power supply contact network detection calibration ruler comprising: a base plate, a scale base, a scale plate, a calibration plate, an adjustment mechanism, a magnetic attraction mechanism and a line clamping mechanism, wherein the upper surface of the base plate is fixedly connected to the scale base, the upper surface of the scale base is provided with a storage groove, a scale plate is provided in the storage groove, the two side surfaces of the scale plate are fixedly connected to the fixing plate, the lower surface of the fixing plate is fixedly connected to the telescopic rod, the lower end of the telescopic rod is fixedly connected to the inner lower surface of the storage groove, the front end surface of the scale plate is provided with a mounting groove, a matching calibration plate is fixedly installed in the mounting groove, the scale plate is connected to the adjustment mechanism, the adjustment mechanism comprises a trapezoidal screw rod and a nut block, the scale plate A slide groove is provided on the top, and the inner lower surface of the slide groove is rotatably connected to a trapezoidal lead screw. The upper end of the trapezoidal lead screw passes through the upper surface of the scale plate, and a nut block matching the slide groove is threadedly sleeved on the trapezoidal lead screw. The nut block is connected to a magnetic attraction mechanism, which includes a neodymium magnet block, an iron plug block, a connecting plate, a connecting block and a U-shaped block. The front end surface of the nut block is provided with two symmetrically arranged slots, and the inner embedded surface of the slot is fixedly connected to a matching neodymium magnet block. The neodymium magnet block is magnetically adsorbed with an iron plug block, and the other ends of the two iron plug blocks extend out of the slot and are fixedly connected to the connecting plate. The front end surface of the connecting plate is fixedly connected to the U-shaped block through the connecting block, and the U-shaped block is connected to a wire clamping mechanism.

[0007] Preferably, the wire clamping mechanism includes an arc-shaped pad, an arc-shaped clamping block, a first screw and a limit rod. The inner lower surface of the U-shaped block is fixedly connected to the arc-shaped pad, the first screw is threadedly connected to the U-shaped block, the lower end of the first screw is rotatably connected to the arc-shaped clamping block, and the upper surface of the arc-shaped clamping block is fixedly connected to two symmetrically arranged limit rods, and the upper end of the limit rod slides through the upper surface of the U-shaped block.

[0008] Preferably, the four corners of the lower surface of the bottom plate are fixedly connected with a second screw rod, the lower end of the second screw rod is threadedly sleeved with a threaded sleeve, and the lower end of the threaded sleeve is fixedly connected to a support block.

[0009] Preferably, the outer side surface of the threaded sleeve is provided with anti-slip grooves.

[0010] Preferably, the rear end surface of the scale base is provided with an operating cavity connected to the receiving groove.

[0011] Preferably, a hexagonal screw block is fixedly connected to the upper end of the second screw.

[0012] Preferably, the upper end of the trapezoidal screw is fixedly connected to a matching handwheel.

[0013] Compared with related technologies, the railway power supply contact network detection calibration ruler provided by the utility model has the following beneficial effects:

[0014] 1. The utility model provides a calibration ruler for detecting contact network for railway power supply. Through the setting of the adjustment mechanism, it can realize continuous conduction height simulation, meet the needs of repeated verification, and improve the diversity and accuracy of calibration data.

[0015] 2. The utility model provides a contact network detection calibration ruler for railway power supply. Through the provision of a magnetic attraction mechanism, the clamping mechanism only needs to be pulled out and inserted when disassembling and assembling, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the utility model from another angle;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model in partial section;

[0019] Figure 4 This is a schematic structural diagram of the nut block in the present utility model;

[0020] Figure 5 It is a structural schematic diagram of the wire clamping mechanism in the utility model.

[0021] Numbers in the figure: 1. Base plate; 2. Scale base; 3. Second screw; 4. Threaded sleeve; 5. Support block; 6. Scale plate; 7. Calibration plate; 8. Telescopic rod; 9. Fixed plate; 10. U-shaped block; 11. Slide groove; 12. Trapezoidal screw rod; 13. Nut block; 14. Handwheel; 15. Operating chamber; 16. Storage groove; 17. Slot; 18. Neodymium magnet block; 19. Iron plug block; 20. Connecting plate; 21. Connecting block; 22. Arc-shaped pad; 23. First screw; 24. Arc-shaped clamping block; 25. Limit rod; 26. Hexagonal screw block. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,in, Figure 1 It is a structural diagram of the utility model; Figure 2 This is a structural diagram of the utility model from another angle; Figure 3 It is a schematic diagram of the structure of the utility model in partial section; Figure 4 This is a schematic structural diagram of the nut block in the present utility model; Figure 5The utility model discloses a structure schematic drawing of line clamping mechanism, including: bottom plate 1, scale base 2, scale plate 6, calibration plate 7, adjusting mechanism, magnetic attraction mechanism and line clamping mechanism.

[0024] Reference Figure 1 、 Figure 2 and Figure 3 As shown in the drawings, the upper surface of the bottom plate 1 is fixedly connected with the scale base 2, the upper surface of the scale base 2 is provided with a receiving groove 16, the receiving groove 16 is provided with the scale plate 6, the two side surfaces of the scale plate 6 are fixedly connected with the fixed plate 9, the lower surface of the fixed plate 9 is fixedly connected with the telescopic rod 8 (the telescopic rod 8 is provided with a locking bolt for adjusting the length thereof, and the telescopic rod 8 is an existing device, which will not be described in detail here), the lower end of the telescopic rod 8 is fixedly connected with the inner lower surface of the receiving groove 16, and the front end surface of the scale plate 6 is provided with a mounting groove, and the mounting groove is fixedly provided with the matched calibration plate 7.

[0025] It should be noted that: when in use, by loosening the locking bolt on the telescopic rod 8, the scale plate 6 can be pulled out of the receiving groove 16 on the scale base 2, and when the telescopic rod 8 reaches the maximum stroke, the scale plate 6 is completely pulled out, and the locking bolt on the telescopic rod 8 is tightened to complete the fixation, and the height formed by the scale base 2 and the scale plate 6 is fixed, and the scale base 2 and the scale plate 6 are both engraved with height scales (not shown in the drawings), so that the scale base 2 and the scale plate 6 form the calibrated height, and when not in use, the scale plate 6 is received in the receiving groove 16.

[0026] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in the drawings, the scale plate 6 is connected with the adjusting mechanism, the adjusting mechanism comprises a trapezoidal screw rod 12 and a nut block 13, the scale plate 6 is provided with a sliding groove 11, the inner lower surface of the sliding groove 11 is rotatably connected with the trapezoidal screw rod 12, the upper end of the trapezoidal screw rod 12 penetrates the upper surface of the scale plate 6, the trapezoidal screw rod 12 is threadedly provided with the nut block 13 matched with the sliding groove 11, the nut block 13 is connected with the magnetic attraction mechanism, the magnetic attraction mechanism comprises a neodymium magnet block 18, an iron plug block 19, a connecting plate 20, a connecting block 21 and a U-shaped block 10, the front end surface of the nut block 13 is provided with two symmetrically arranged insertion grooves 17, the inner embedded surface of the insertion groove 17 is fixedly connected with the matched neodymium magnet block 18, the neodymium magnet block 18 is magnetically attracted with the iron plug block 19, the other ends of the two iron plug blocks 19 extend out of the insertion groove 17 and are fixedly connected with the connecting plate 20, the front end surface of the connecting plate 20 is fixedly connected with the U-shaped block 10 through the connecting block 21, and the U-shaped block 10 is connected with the line clamping mechanism.

[0027] It should be noted that: when in use, the contact wire of the contact network is clamped by the wire clamping mechanism to simulate the position of the contact wire. The contact network sensor that needs to be calibrated is fixed on the baseline, and then the detection data of the sensor is collected and compared with the calibration data. Then, by rotating the trapezoidal screw rod 12, the rotation of the trapezoidal screw rod 12 drives the nut block 13 to slide in the slide groove 11, driving the movement of the wire clamping mechanism to adjust the guide height of the contact wire, and then the detection data is re-collected and compared with the calibration data. The accuracy of calibration is improved by repeated collection and comparison. When the industrial camera performs visual calibration, calibration can be performed through the calibration plate 7 on the scale plate 6;

[0028] It should be further explained that when not in use, the iron plug 19 is fixed to the neodymium magnet 18 in the slot 17 by magnetic adsorption, and only needs to be pulled out and inserted during disassembly and assembly, making the wire clamping mechanism easy and quick to disassemble and assemble, and convenient to use.

[0029] refer to Figure 1 and Figure 5 As shown, the wire clamping mechanism includes an arc-shaped pad 22, an arc-shaped clamping block 24, a first screw 23 and a limit rod 25. The inner lower surface of the U-shaped block 10 is fixedly connected with the arc-shaped pad 22, the U-shaped block 10 is threadedly connected with the first screw 23, the lower end of the first screw 23 is rotatably connected with the arc-shaped clamping block 24, and the upper surface of the arc-shaped clamping block 24 is fixedly connected with two symmetrically arranged limit rods 25, and the upper end of the limit rod 25 slides through the upper surface of the U-shaped block 10.

[0030] What needs to be said is: when in use, place the contact wire on the arc-shaped pad 22, then rotate the first screw 23 to drive the arc-shaped clamping block 24 to move downward, and the contact wire is clamped and fixed on the arc-shaped pad 22 by the arc-shaped clamping block 24.

[0031] refer to Figure 1 As shown, the four corners of the lower surface of the base plate 1 are fixedly connected with a second screw rod 3, the lower end of the second screw rod 3 is threadedly sleeved with a threaded sleeve 4, and the lower end of the threaded sleeve 4 is fixedly connected to a support block 5.

[0032] It should be noted that during use, the height of the support block 5 can be adjusted by rotating the threaded sleeve 4. By adjusting the height of each support block 5, the base plate 1 can be leveled, which is convenient for use on the railway.

[0033] The outer side surface of the threaded sleeve 4 is provided with anti-skid grooves, which increase the friction force and facilitate the rotation of the threaded sleeve 4.

[0034] refer to Figure 2 As shown, the rear end surface of the scale base 2 is provided with an operating cavity 15 connected to the receiving groove 16. The receiving groove 16 is provided to facilitate the tightening of the locking bolt on the telescopic rod 8.

[0035] refer to Figure 5 As shown, the upper end of the second screw rod 3 is fixedly connected with a hexagonal screw block 26 , and the hexagonal screw block 26 is provided to facilitate the rotation of the second screw rod 3 .

[0036] refer to Figure 2 As shown, the upper end of the trapezoidal lead screw 12 is fixedly connected with a matching hand wheel 14 , and the trapezoidal lead screw 12 can be easily rotated by the provided hand wheel 14 .

[0037] The working principle of the present invention is as follows: when in use, by loosening the locking bolt on the telescopic rod 8, the scale plate 6 can be pulled out from the storage groove 16 on the scale base 2. After the telescopic rod 8 reaches the maximum stroke, the scale plate 6 is completely pulled out, and the locking bolt on the telescopic rod 8 is tightened to complete the fixation. The height formed by the scale base 2 and the scale plate 6 is fixed, and height scales are engraved on the scale base 2 and the scale plate 6, so that the scale base 2 and the scale plate 6 can form a calibrated height. When not in use, the scale plate 6 is stored in the storage groove 16, which is portable for use. When in use, the contact line of the contact network is clamped by the wire clamping mechanism, and the contact line is placed on the arc pad 22, and then the first screw 23 is rotated to drive the arc clamping block 24 to move downward, and the contact line is clamped and fixed on the arc pad 22 by the arc clamping block 24 to simulate the position of the contact line. The calibrated contact network sensor is fixed on the baseline, and then the sensor's detection data is collected and compared with the calibration data. Then, by rotating the trapezoidal screw 12, the rotation of the trapezoidal screw 12 drives the nut block 13 to slide in the slide groove 11, driving the movement of the wire clamping mechanism to adjust the contact line height. Then, the detection data is re-collected and compared with the calibration data. The accuracy of calibration is improved by repeated collection and comparison. When the industrial camera performs visual calibration, calibration can be performed through the calibration plate 7 on the scale plate 6, so that continuous height simulation can be achieved through the adjustment mechanism to meet the repeated verification requirements and improve the diversity and accuracy of the calibration data. When not in use, since the iron plug block 19 is fixed to the neodymium magnet block 18 in the slot 17 by magnetic adsorption, it only needs to be pulled and inserted during disassembly and assembly, making the disassembly and assembly of the wire clamping mechanism convenient and fast, and easy to use.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A contact network detection calibration ruler for railway power supply, characterized in that: include: Bottom plate (1); A scale base (2), wherein the upper surface of the base plate (1) is fixedly connected to the scale base (2), and a receiving groove (16) is provided on the upper surface of the scale base (2); A scale plate (6), wherein the storage groove (16) is provided with a scale plate (6), the two side surfaces of the scale plate (6) are fixedly connected to fixed plates (9), the lower surface of the fixed plate (9) is fixedly connected to a telescopic rod (8), and the lower end of the telescopic rod (8) is fixedly connected to the inner lower surface of the storage groove (16); A calibration plate (7), wherein the front end surface of the scale plate (6) is provided with a mounting groove, and a matching calibration plate (7) is fixedly mounted in the mounting groove; An adjustment mechanism is connected to the scale plate (6), and the adjustment mechanism includes a trapezoidal screw rod (12) and a nut block (13). A slide groove (11) is provided on the scale plate (6). The inner lower surface of the slide groove (11) is rotatably connected to the trapezoidal screw rod (12). The upper end of the trapezoidal screw rod (12) passes through the upper surface of the scale plate (6). A nut block (13) matching the slide groove (11) is provided on the threaded sleeve of the trapezoidal screw rod (12); A magnetic attraction mechanism, wherein the nut block (13) is connected to a magnetic attraction mechanism, the magnetic attraction mechanism comprising a neodymium magnet block (18), an iron plug block (19), a connecting plate (20), a connecting block (21) and a U-shaped block (10), the front end surface of the nut block (13) is provided with two symmetrically arranged slots (17), the inner embedded surface of the slot (17) is fixedly connected to a matching neodymium magnet block (18), the iron plug block (19) is magnetically attracted to the neodymium magnet block (18), the other ends of the two iron plug blocks (19) extend outside the slot (17) and are fixedly connected to the connecting plate (20), and the front end surface of the connecting plate (20) is fixedly connected to the U-shaped block (10) via the connecting block (21); A wire clamping mechanism is connected to the U-shaped block (10).

2. The railway power supply contact network detection calibration ruler according to claim 1, characterized in that: The wire clamping mechanism comprises an arc-shaped pad (22), an arc-shaped clamping block (24), a first screw (23) and a limiting rod (25); the inner lower surface of the U-shaped block (10) is fixedly connected to the arc-shaped pad (22); the upper end of the U-shaped block (10) is threadedly connected to the first screw (23); the lower end of the first screw (23) is rotatably connected to the arc-shaped clamping block (24); the upper surface of the arc-shaped clamping block (24) is fixedly connected to two symmetrically arranged limiting rods (25); the upper ends of the limiting rods (25) slide through the upper surface of the U-shaped block (10).

3. The railway power supply contact network detection calibration ruler according to claim 1, characterized in that: The four corners of the lower surface of the bottom plate (1) are fixedly connected to a second screw rod (3), the lower end of the second screw rod (3) is threadedly sleeved with a threaded sleeve (4), and the lower end of the threaded sleeve (4) is fixedly connected to a support block (5).

4. The railway power supply contact network detection calibration ruler according to claim 3, characterized in that: The outer side surface of the threaded sleeve (4) is provided with anti-slip grooves.

5. The railway power supply contact network detection calibration ruler according to claim 1, characterized in that: The rear end surface of the scale base (2) is provided with an operating cavity (15) that is in communication with the receiving groove (16).

6. The railway power supply contact network detection calibration ruler according to claim 3, characterized in that: The upper end of the second screw (3) is fixedly connected to a hexagonal screw block (26).

7. The railway power supply contact network detection calibration ruler according to claim 1, characterized in that: The upper end of the trapezoidal screw rod (12) is fixedly connected to a matching hand wheel (14).

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