Contact network detection device

Abstract

The present application discloses a contact network detection device, comprising a vehicle body, a lifting portion, a frame-shaped bracket, a screw, a wear detection mechanism, two sliders, two guide wheel assemblies, and two debris removal assemblies; the wear detection mechanism comprises a detection assembly and two automatic compensation assemblies; the detection assembly comprises a detection rod, a conical block, and a distance sensor; the automatic compensation assembly comprises a fixing sleeve, a telescopic rod, a first elastic member, and a first clamping member; the guide wheel assembly comprises a first guide rod and a guide wheel; the debris removal assembly comprises a second guide rod, a splicing plate, a scraper, a second elastic member, and a second clamping member; the first guide rod and the second guide rod are respectively fixedly connected to the two sides of the slider. The present application eliminates the need to repeatedly dismantle and clamp the detection device, and can automatically clean fine debris on the contact network conductor before detection, thereby improving the detection accuracy and comprehensively reflecting the wear values ​​at all positions of the contact network conductor.

Description

Technical Field

[0001] The present application relates to the field of contact network detection technology, and in particular to a contact network detection device. Background Art

[0002] The catenary is a specialized transmission line erected overhead along a railway line, supplying power to electric locomotives. It consists of a contact suspension, support devices, positioning devices, supports, and foundations. The contact suspension includes the contact wire, dropper strings, load-bearing cables, connecting components, and insulators. The contact suspension is mounted on the support via the support devices and transmits electrical energy from the traction substation to the locomotive. The positioning device, consisting of a positioning tube and positioner, secures the contact wire within the pantograph's operating trajectory, ensuring it remains attached to the pantograph and transmitting horizontal loads from the contact wire to the support.

[0003] The contact line (such as Figure 1 Left side) provides continuous and reliable power to the locomotive through direct contact with the pantograph of the electric locomotive. When the lower part of the contact wire (contact wire) is excessively worn (such as Figure 1 To ensure the reliable operation of electric locomotives, it is necessary to regularly measure the wear of the contact wires.

[0004] The measurement methods in the existing technology are mostly segmented measurement, and only some points are measured in each segment. Generally, a worker clamps the detection device at a point in a segment of the contact network wire, and then records the data of the point. Then the detection device is removed and moved to the next point to continue measuring the contact network wire clamping. This measurement method requires the detection device to be removed and clamped back and forth. Each removal and re-clamping is likely to cause the clamping to be inadequate, thereby affecting the accuracy of the detection. At the same time, it increases the labor intensity of the workers, the overall detection efficiency is low, and it cannot fully reflect the wear values ​​of all positions of the contact network wire. In the existing technology, when measuring, it is impossible to clean up the fine debris on the contact network wire, which further affects the accuracy of the detection. Summary of the Invention

[0005] The present application provides a contact network detection device, which solves the problem that most of the existing technologies require segmented measurements and the detection device needs to be dismantled and clamped back and forth, which easily leads to improper clamping and inability to clean up fine debris on the contact network wire, thereby affecting the accuracy of detection, increasing the labor intensity of workers, low overall detection efficiency, and inability to fully reflect the technical problems of wear values ​​at all positions of the contact network wire. The application realizes that there is no need to dismantle and clamp the detection device back and forth, and fine debris on the contact network wire can be automatically cleaned before detection, thereby improving the accuracy and efficiency of detection and being able to fully reflect the wear values ​​at all positions of the contact network wire.

[0006] In the first aspect, the present application provides a contact network detection device, including a vehicle body, a lifting part, a frame-shaped bracket, a screw, a wear detection mechanism, two sliders, two guide wheel assemblies and two debris removal assemblies; the lifting part is arranged on the top surface of the vehicle body, and the frame-shaped bracket is fixedly connected to the lifting end of the lifting part; the screw is located inside the frame-shaped bracket, and the two ends of the screw are rotatably connected to the two sides of the frame-shaped bracket; the two sliders are sleeved on the outside of the screw and are threadedly connected to the screw, and the outsides of the two sliders are slidably connected to the inside of the frame-shaped bracket, and can move toward or away from the inside of the frame bracket under the drive of the screw; the The wear detection mechanism includes a detection component and two automatic compensation components arranged on both sides of the detection component; the detection component includes a detection rod, a tapered block and a distance sensor, one end of the detection rod is inserted into the interior of the frame bracket and is slidably connected to the frame bracket, the tapered block is sleeved on the outer side of the top end of the detection rod and is fixedly connected to the detection rod, the distance sensor is fixedly connected to the bottom end of the tapered block and can overlap the top surface of the frame bracket; the automatic compensation component includes a fixed sleeve, a telescopic rod, a first elastic member and a first clamping member, the guide wheel assembly includes a first guide rod and a guide wheel, the debris removal assembly includes a second guide rod, a splicing plate, a scraper, A second elastic member and a second clamping member; the first guide rod and the second guide rod pass through the frame-shaped bracket and can slide along the length direction of the frame-shaped bracket, and the first guide rod and the second guide rod are respectively fixedly connected to the two sides of the slider; the guide wheel is arranged at the top end of the first guide rod, and the two guide wheels can be clamped in the clamping groove on the outside of the contact network wire; one end of the fixed sleeve is fixedly connected to the outside of the first guide rod, and the first elastic member is arranged inside the fixed sleeve near the first guide rod; one end of the telescopic rod is inserted into the inside of the fixed sleeve and is slidably connected to the inner side of the fixed sleeve, and the telescopic rod is connected to the first elastic member The first clamping piece can be inserted into the interior of the fixed sleeve and can be clamped with the telescopic rod; the two splicing plates are provided with splicing grooves that are adapted to the contour of the contact network conductor, and the outer sides of the splicing plates are fixedly connected to the second guide rod; the bottom surface of the splicing groove is provided with a hidden groove, and the inside of the hidden groove is provided with the second elastic piece, the scraper is inserted into the hidden groove and slidably connected to the hidden groove, and the bottom end of the scraper is in contact with the top end of the second elastic piece; the second clamping piece can be inserted into the hidden groove and can be clamped with the scraper.

[0007] In combination with the first aspect, in a possible implementation, reverse threads are respectively provided on the rod bodies at both ends of the screw rod, and the two sliders are threadably connected to the screw rod via the reverse threads.

[0008] In combination with the first aspect, in a possible implementation, the guide wheel includes a wheel body and a U-shaped frame; the wheel body is located inside the U-shaped frame and is rotatably connected to the U-shaped frame; the U-shaped frame is fixedly connected to the top end of the first guide rod; the rim of the wheel body can be adapted to the clamping groove on the outside of the contact network wire, and can roll in the clamping groove along the length direction of the contact network wire.

[0009] In combination with the first aspect, in a possible implementation, eight guide slots are formed through the frame-shaped bracket; the first guide rod and the second guide rod can pass through the guide slots and be slidably connected to the guide slots.

[0010] In combination with the first aspect, in a possible implementation, a contact network detection device provided by the present application also includes a fixed cylinder, a third elastic member and a clamping disk; the bottom end of the detection rod is inserted into the interior of the fixed cylinder and fixedly connected to the clamping disk; the third elastic member is located inside the fixed cylinder and is sleeved on the outside of the detection rod, and the two ends of the third elastic member are respectively abutted against the clamping disk and the inner side of the frame-shaped bracket; the top end of the fixed cylinder is fixedly connected to the inner side of the frame-shaped bracket.

[0011] In combination with the first aspect, in a possible implementation, one end of the screw rod extends out of the frame-shaped bracket and is fixedly connected to a rotating handle.

[0012] In combination with the first aspect, in a possible implementation, the first clamping member is threadedly connected to the fixed sleeve, a first clamping hole is provided on the telescopic rod, and the first clamping member can be plugged into the first clamping hole; the second clamping member is threadedly connected to the splicing plate, a second clamping hole is provided on the scraper, and the second clamping member can be plugged into the second clamping hole.

[0013] In the second aspect, the present application provides a contact network detection method, including: moving the vehicle body to the bottom of the contact network, rotating the screw rod to drive the two sliders to move away from each other, so that the two guide wheel assemblies and the two debris removal assemblies move away from each other at the same time; controlling the action of the lifting part to drive the frame bracket, the wear detection mechanism, the two guide wheel assemblies and the two debris removal assemblies to move upward, so that the two separated guide wheel assemblies and the two separated debris removal assemblies rise to both sides of the contact network wire to be detected, and then rotating the screw rod in the opposite direction to drive the two sliders to move toward each other, so that the two guide wheel assemblies and the two debris removal assemblies move toward each other and clamped on both sides of the contact network wire to be detected, so that the two guide wheels are clamped on the outside of the contact network wire to be detected. The two splicing plates are clamped in the clamping groove, and the outer side of the contact wire to be detected is wrapped and clamped by the two splicing plates; the telescopic rod is shortened and clamped in the fixed sleeve in advance by the first clamping piece, and the scraper is clamped and hidden in the hidden groove by the second clamping piece, and the height of the guide wheel relative to the top surface of the frame bracket is set in advance, so that when the guide wheel is clamped in the clamping groove outside the standard contact wire, the top of the detection rod is in contact with and flush with the lowest end of the standard contact wire, and the distance sensor is normally overlapped on the top surface of the frame bracket, and the value detected by the distance sensor is zero. At the same time, the lowest end of the splicing groove is flush with the top of the detection rod; when the two guide wheels are clamped in the clamping groove outside the contact wire to be detected, the two splicing plates are clamped in the clamping groove After wrapping and clamping the outer side of the contact network conductor to be detected, loosen the first clamping piece and the second clamping piece, so that the telescopic rod abuts against the conical surface of the conical block under the action of the first elastic piece, and at the same time, the scraper abuts against the lowest end of the contact network to be detected under the action of the second elastic piece. If the lowest end of the contact network conductor to be detected is worn, there will be a gap between the top end of the detection rod and the lowest end of the contact network conductor to be detected. The telescopic rod squeezes the conical block, which will cause the detection rod to move upward and automatically compensate for the gap. At this time, the conical block drives the ranging sensor to move upward synchronously, so that the ranging sensor leaves the top surface of the frame bracket. The distance detected by the ranging sensor from the top surface of the frame bracket is the thickness of the worn contact network conductor to be detected at this position. ; Afterwards, the vehicle body is controlled to move along the length direction of the contact network wire to be detected, and the guide wheel rolls in the clamping groove of the contact network wire to be detected to guide and support the detection component and the two automatic compensation components. The splicing plate slides on the outside of the contact network wire to be detected through the splicing groove to guide and support the debris removal component. During the movement of the entire device, when the detection rod reaches other positions, the top end of the detection rod can always be in contact with the lowest end of other positions of the contact network wire to be detected through the extrusion cooperation of the telescopic rod and the conical block. At the same time, the distance values ​​from the top surface of the frame bracket detected by the ranging sensor at different positions can fully reflect the wear value of the contact network wire to be detected at different positions.During the movement of the vehicle, the scraper can always contact the lowest end of the contact wire to be tested at all locations through the second elastic member, and can scrape away debris at the lowest end of the contact wire to be tested before the detection component detects the contact wire to be tested, so that the detection component can accurately detect the wear value of the lowest end of the contact wire to be tested.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] The present application adopts a vehicle body, a lifting portion, a frame-shaped bracket, a screw, a wear detection mechanism, two sliders, two guide wheel assemblies and two debris removal assemblies, and sets a wear detection mechanism including a detection assembly and two automatic compensation assemblies. The detection assembly includes a detection rod, a tapered block and a distance sensor. The automatic compensation assembly includes a fixed sleeve, a telescopic rod, a first elastic member and a first clamping member. By rotating the screw, the two sliders can be driven to move toward or away from each other, and then the two guide wheel assemblies and the two debris removal assemblies are driven by the slider to synchronously move toward or away from each other, so that the two guide wheels are clamped in the clamping groove on the outside of the contact wire to be detected, and at the same time, the two splicing plates wrap and clamp the outside of the contact wire to be detected.

[0016] By providing the first clamping member and the second clamping member, the telescopic rod can be shortened in advance and clamped in the fixed sleeve (without generating extrusion pressure on the tapered block), and the scraper can be clamped and hidden in the hidden groove. By setting the height of the guide wheel relative to the top surface of the frame-shaped bracket in advance, when the guide wheel is clamped into the clamping groove outside the standard contact network conductor, the top end of the detection rod contacts and is flush with the lowest end of the standard contact network conductor. At the same time, the distance measuring sensor is normally overlapped on the top surface of the frame-shaped bracket, and the value detected by the distance measuring sensor is zero (that is, the standard contact network conductor is not worn). At the same time, the lowest end of the splicing groove is flush with the top end of the detection rod, ensuring that the splicing groove can fully adapt to the outer contour of the standard contact network conductor. By performing installation and adjustment with the standard contact network conductor in advance, the calibration work of the entire device before detection is achieved.

[0017] When the two guide wheels are clamped in the clamping grooves on the outside of the contact network conductor to be detected, and the two splicing plates wrap and clamp the outside of the contact network conductor to be detected, the first clamping piece and the second clamping piece are loosened, so that the telescopic rod abuts against the conical surface of the conical block under the action of the first elastic piece, and the scraper abuts against the lowest end of the contact network to be detected under the action of the second elastic piece. If the lowest end of the contact network conductor to be detected is worn, there will be a gap between the top end of the detection rod and the lowest end of the contact network conductor to be detected. The telescopic rod squeezes the conical block, which will cause the detection rod to move upward and automatically compensate for the gap. At this time, the conical block drives the ranging sensor to move upward synchronously, so that the ranging sensor leaves the top surface of the frame bracket. The distance detected by the ranging sensor from the top surface of the frame bracket is the thickness of the contact network conductor to be detected that is worn at this position.

[0018] Afterwards, the vehicle body is controlled to move along the length direction of the contact network wire to be detected, and the guide wheel rolls in the clamping groove and the splicing plate slides on the outside of the contact network wire to be detected, so that the detection component, the automatic compensation component and the debris removal component can be stably guided and supported. During the movement of the entire device, when the detection rod reaches other positions, the extrusion and fit of the telescopic rod and the conical block can ensure that the top end of the detection rod always contacts the lowest end of other positions of the contact network wire to be detected. At the same time, the distance values ​​from the top surface of the frame bracket detected by the distance measuring sensor at different positions can fully reflect the wear value of the contact network wire to be detected at different positions.

[0019] During the movement of the vehicle body, the scraper can always abut against the lowest end of all positions of the contact wire to be tested through the second elastic member, and can scrape away debris at the lowest end of the contact wire to be tested before the detection component detects the contact wire to be tested, so that the detection component can accurately detect the wear value of the lowest end of the contact wire to be tested, thereby improving the detection accuracy of the entire device;

[0020] The invention effectively solves the technical problems that most of the existing technologies require segmented measurement, and the detection device needs to be dismantled and clamped back and forth, which easily leads to improper clamping and inability to clean up fine debris on the contact network wire, thereby affecting the accuracy of detection, and at the same time increasing the labor intensity of workers, the overall detection efficiency is low, and the wear values ​​of all positions of the contact network wire cannot be fully reflected. The invention realizes that there is no need to dismantle and clamp the detection device back and forth, and fine debris on the contact network wire can be automatically cleaned before detection, thereby improving the detection accuracy and efficiency, and can fully reflect the wear values ​​of all positions of the contact network wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the cross section of a standard overhead contact wire and an overhead contact wire after wear in the prior art;

[0023] Figure 2 An axonometric diagram of a contact network detection device provided in an embodiment of the present application;

[0024] Figure 3 for Figure 2 A partial enlarged view of area A in the middle;

[0025] Figure 4 An axonometric diagram of a contact network detection device provided in an embodiment of the present application after the first clamping member and the second clamping member are loosened;

[0026] Figure 5 for Figure 4 A partial enlarged view of the middle B area;

[0027] Figure 6 for Figure 2 Axonometric drawing in another direction;

[0028] Figure 7 for Figure 4 Axonometric drawing in another direction;

[0029] Figure 8 A top view of a contact network detection device provided in an embodiment of the present application;

[0030] Figure 9 for Figure 8 Cross-sectional view in CC direction;

[0031] Figure 10 for Figure 9 A schematic diagram of the structure after the first clamping member and the second clamping member are loosened;

[0032] Figure 11 An axonometric diagram of a contact network detection device provided in an embodiment of the present application when clamped to both sides of a standard contact network conductor;

[0033] Figure 12 An axonometric diagram of a contact network detection device provided in an embodiment of the present application when clamped to both sides of a worn contact network conductor;

[0034] Figure 13 for Figure 12 A partial enlarged view of the middle D area;

[0035] Figure 14 A side view of a contact network detection device provided in an embodiment of the present application moving along the length direction of the contact network conductor;

[0036] Figure 15 An axonometric view of the splicing plate, scraper and third elastic member provided in an embodiment of the present application.

[0037] Reference numerals: 1-body; 2-lifting part; 3-frame bracket; 31-guide groove; 4-screw; 41-handle; 5-wear detection mechanism; 51-detection assembly; 511-detection rod; 512-conical block; 513-distance sensor; 52-automatic compensation assembly; 521-fixing sleeve; 522-telescopic rod; 5221-first clamping hole; 523-first elastic member; 524-first clamping member; 6-slider; 7-guide Directional wheel assembly; 71-first guide rod; 72-guide wheel; 721-wheel body; 722-U-shaped frame; 8-debris removal assembly; 81-second guide rod; 82-splicing plate; 821-splicing groove; 822-hidden groove; 83-scraper; 831-second clamping hole; 84-second elastic member; 85-second clamping member; 9-contact network conductor; 91-clamping groove; 10-fixing cylinder; 11-third elastic member; 12-clamping disc. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "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 a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0040] Reference Figure 2-15, a contact network detection device provided by an embodiment of the present application includes a vehicle body 1, a lifting part 2, a frame bracket 3, a screw rod 4, a wear detection mechanism 5, two sliders 6, two guide wheel assemblies 7 and two debris removal assemblies 8; the lifting part 2 is arranged on the top surface of the vehicle body 1, and the frame bracket 3 is fixedly connected to the lifting end of the lifting part 2; the screw rod 4 is inside the frame bracket 3, and the two ends of the screw rod 4 are rotatably connected to the two sides of the frame bracket 3; the two sliders 6 are sleeved on the outside of the screw rod 4 and are threadedly connected to the screw rod 4, and the outer sides of the two sliders 6 are slidably connected to the inner side of the frame bracket 3, and can move toward or away from the inner side of the frame bracket 3 under the drive of the screw rod 4; the wear detection mechanism 5 includes a detection component 51 and a detection component 51 provided on the detection component 5 1 two automatic compensation components 52 on both sides; the detection component 51 includes a detection rod 511, a tapered block 512 and a distance sensor 513, one end of the detection rod 511 is inserted into the interior of the frame bracket 3 and is slidably connected to the frame bracket 3, the tapered block 512 is sleeved on the outer side of the top end of the detection rod 511 and is fixedly connected to the detection rod 511, the distance sensor 513 is fixedly connected to the bottom end of the tapered block 512 and can overlap the top surface of the frame bracket 3; the automatic compensation component 52 includes a fixed sleeve 521, a telescopic rod 522, a first elastic member 523 and a first clamping member 524, the guide wheel assembly 7 includes a first guide rod 71 and a guide wheel 72, the debris removal component 8 includes a second guide rod 81, a splicing plate 82, a scraper 83, a first Two elastic members 84 and a second clamping member 85; the first guide rod 71 and the second guide rod 81 pass through the frame bracket 3 and can slide along the length direction of the frame bracket 3. The first guide rod 71 and the second guide rod 81 are fixedly connected to the two sides of the slider 6 respectively; the guide wheel 72 is provided at the top end of the first guide rod 71, and the two guide wheels 72 can be clamped in the clamping groove 91 on the outside of the contact network conductor 9; one end of the fixed sleeve 521 is fixedly connected to the outside of the first guide rod 71, and the first elastic member 523 is provided inside the fixed sleeve 521 near the first guide rod 71; one end of the telescopic rod 522 is inserted into the interior of the fixed sleeve 521 and is slidably connected to the inner side of the fixed sleeve 521, and the telescopic rod 522 abuts against the first elastic member 523 The end of the telescopic rod 522 facing away from the first elastic member 523 contacts the conical surface of the conical block 512; the first clamping member 524 can be inserted into the interior of the fixed sleeve 521 and can be clamped with the telescopic rod 522; the two splicing plates 82 are provided with splicing grooves 821 that are adapted to the contour of the contact network conductor 9, and the outer side of the splicing plate 82 is fixedly connected to the second guide rod 81; the bottom surface of the splicing groove 821 is provided with a hidden groove 822, and the inside of the hidden groove 822 is provided with a second elastic member 84, the scraper 83 is inserted into the hidden groove 822 and is slidably connected to the hidden groove 822, and the bottom end of the scraper 83 contacts the top of the second elastic member 84; the second clamping member 85 can be inserted into the hidden groove 822 and can be clamped with the scraper 83.

[0041] Reference Figure 2-15Specifically, in the embodiment of the present application, the lifting part 2 can be a lift or a large-stroke hydraulic cylinder. The two ends of the screw rod 4 are rotatably connected to the two sides of the frame bracket 3 through bearings, so that the screw rod 4 can rotate relative to the frame bracket 3. The distance sensor 513 adopts a laser sensor, which can directly display the distance value between the distance sensor 513 and the top surface of the frame bracket 3. The collected distance value can be simulated on a computer as a coordinate curve, which is convenient for evaluating the overall wear of the contact network wire 9. The first elastic member 523 and the second elastic member 84 are springs. The contact network detection device in the embodiment of the present application needs to be designed and manufactured in advance according to the standard contact network wire 9, that is, It is necessary to shorten the telescopic rod 522 in advance and clamp it in the fixed sleeve 521 through the first clamping piece 524 and the second clamping piece 85 (without generating squeezing force on the conical block 512), and at the same time, the scraper 83 can be clamped and hidden in the hidden groove 822. By setting the height of the guide wheel 72 relative to the top surface of the frame bracket 3 in advance, when the guide wheel 72 is clamped into the clamping groove 91 outside the standard contact network wire 9, the top end of the detection rod 511 contacts and is flush with the lowest end of the standard contact network wire 9, and the distance sensor 513 is normally overlapped on the top surface of the frame bracket 3, and the value detected by the distance sensor 513 is zero (that is, the standard contact network wire 9 is not worn). At the same time, , the lowest end of the splicing groove 821 is flush with the top of the detection rod 511, ensuring that the splicing groove 821 can fully adapt to the outer contour of the standard contact network conductor 9; by installing and adjusting it in advance with the standard contact network conductor 9, the calibration work of the entire device before detection is realized; thereafter, the detection work of the contact network to be detected is carried out, that is, by rotating the screw rod 4, the two guide wheels 72 are clamped in the clamping groove 91 on the outside of the contact network conductor 9 to be detected, and at the same time, the two splicing plates 82 wrap and clamp the outside of the contact network conductor 9 to be detected, and then, loosen the first clamping member 524 and the second clamping member 85, so that the telescopic rod 522 abuts against the conical under the action of the first elastic member 523. The conical surface of the block 512 simultaneously causes the scraper 83 to abut against the lowest end of the contact network to be detected under the action of the second elastic member 84. If the lowest end of the contact network conductor 9 to be detected is worn, a gap will exist between the top end of the detection rod 511 and the lowest end of the contact network conductor 9 to be detected. The telescopic rod 522 squeezes the conical block 512 to move the detection rod 511 upward and automatically compensate for the gap. At this time, the conical block 512 drives the distance measuring sensor 513 to move upward synchronously, so that the distance measuring sensor 513 leaves the top surface of the frame bracket 3. The distance detected by the distance measuring sensor 513 from the top surface of the frame bracket 3 is the thickness of the contact network conductor 9 to be detected that is worn at this position.Afterwards, the vehicle body 1 is controlled to move along the length direction of the contact wire 9 to be detected, and the guide wheel 72 rolls in the clamping groove 91 and the splicing plate 82 slides on the outside of the contact wire 9 to be detected, so that the detection component 51, the automatic compensation component 52 and the debris removal component 8 can be stably guided and supported. During the movement of the entire device, when the detection rod 511 reaches other positions, the extrusion fit of the telescopic rod 522 and the conical block 512 can make the top end of the detection rod 511 always contact the lowest end of other positions of the contact wire 9 to be detected, and at the same time, the distance sensor 513 is used. The distance values ​​measured at different locations from the top surface of the frame-shaped bracket 3 can fully reflect the wear values ​​of the entire catenary wire 9 at different locations. During the movement of the vehicle body 1, the scraper 83, via the second elastic member 84, can always abut the lowest end of the catenary wire 9 at all locations. This can scrape away debris at the lowest end of the catenary wire 9 before the detection assembly 51 performs the inspection. This allows the detection assembly 51 to accurately detect the wear value of the lowest end of the catenary wire 9, thereby improving the detection accuracy of the entire device.

[0042] Reference Figure 2 、 6 , the rod bodies at both ends of the screw rod 4 are respectively provided with opposite threads, and the two sliders 6 are threadedly connected to the screw rod 4 through the opposite threads. Specifically, in the embodiment of the present application, by providing opposite threads on the rod bodies at both ends of the screw rod 4, the two sliders 6 can be driven to move toward or away from each other along the axial direction of the screw rod 4 during the rotation of the screw rod 4.

[0043] Reference Figure 1 、 2 , 4, 6-12, the guide wheel 72 includes a wheel body 721 and a U-shaped frame 722; the wheel body 721 is located inside the U-shaped frame 722 and is rotatably connected to the U-shaped frame 722; the U-shaped frame 722 is fixedly connected to the top end of the first guide rod 71; the rim of the wheel body 721 is adapted to fit within the clamping groove 91 on the outside of the contact wire 9 and is capable of rolling within the clamping groove 91 along the length of the contact wire 9. Specifically, in the embodiment of the present application, the rim of the wheel body 721 is designed based on the clamping groove 91 on the outside of the contact wire 9, so that the wheel body 721 can clamp within the clamping groove 91 and can stably roll within the clamping groove 91. The wheel body 721 is rotatably connected to the U-shaped frame 722 via a short shaft.

[0044] Reference Figure 2 、 4, 6, 7, 9, 10, eight guide slots 31 are formed through the frame bracket 3; the first guide rod 71 and the second guide rod 81 can pass through the guide slots 31 and are slidably connected to the guide slots 31. Specifically, in the embodiment of the present application, a total of eight guide slots 31 are formed on the top and bottom surfaces of the frame bracket 3. The two first guide rods 71 ​​and the two second guide rods 81 are respectively guided by the eight guide slots 31, ensuring the stability of the sliding operation of the first guide rods 71 ​​and the second guide rods 81 relative to the frame bracket 3.

[0045] Reference Figure 9-10 A contact network detection device provided in an embodiment of the present application also includes a fixed cylinder 10, a third elastic member 11 and a clamping disk 12; the bottom end of the detection rod 511 is inserted into the interior of the fixed cylinder 10 and fixedly connected to the clamping disk 12; the third elastic member 11 is located inside the fixed cylinder 10 and is sleeved on the outside of the detection rod 511, and the two ends of the third elastic member 11 are respectively abutted against the clamping disk 12 and the inner side of the frame bracket 3; the top end of the fixed cylinder 10 is fixedly connected to the inner side of the frame bracket 3. When the third elastic member 11 is in the state of being pressed down, the conical block 512 is pressed down, and the detection rod 511 is pressed down, so that the third elastic member 11 does not exert force on the clamping plate 12. When the telescopic rod 522 produces an extrusion force on the conical block 512, so that the conical block 512 and the detection rod 511 are normally overlapped on the top surface of the frame bracket 3, the third elastic member 11 does not produce an acting force on the clamping plate 12. When the telescopic rod 522 produces an extrusion force on the conical block 512, so that the conical block 512 and the detection rod 511 move upward, the clamping plate 12 will move upward and compress the third elastic member 11.

[0046] Reference Figure 2 、 4 , 6, 7, one end of the screw rod 4 extends out of the frame bracket 3 and is fixedly connected to a rotating handle 41. In the embodiment of the present application, a rotating handle 41 is specifically provided at one end of the screw rod 4 to facilitate the rotation of the screw rod 4.

[0047] Reference Figure 9 、 10, 15, the first clamping member 524 is threadedly connected to the fixing sleeve 521, and a first clamping hole 5221 is provided on the telescopic rod 522, and the first clamping member 524 can be plugged into the first clamping hole 5221; the second clamping member 85 is threadedly connected to the splicing plate 82, and a second clamping hole 831 is provided on the scraper 83, and the second clamping member 85 can be plugged into the second clamping hole 831. Specifically in the embodiment of the present application, the first clamping member 524 and the second clamping member 85 are both screws. By compressing the telescopic rod 522 toward the interior of the fixed sleeve 521, the first clamping member 524 is screwed into the fixed sleeve 521 and can be inserted into the first clamping hole 5221, thereby realizing that the telescopic rod 522 is clamped to the interior of the fixed sleeve 521 through the first clamping member 524; similarly, by pressing the scraper 83 downward and entering the hidden groove 822, the second clamping member 85 is screwed into the hidden groove 822 and can be inserted into the second clamping hole 831, thereby realizing that the scraper 83 is clamped to the hidden groove 822 through the second clamping member 85.

[0048] The embodiment of the present application provides a contact network detection method, comprising: moving the vehicle body 1 to the bottom of the contact network, rotating the screw rod 4 to drive the two sliders 6 to move away from each other, so that the two guide wheel assemblies 7 and the two debris removal assemblies 8 move away from each other at the same time; controlling the action of the lifting part 2 to drive the frame bracket 3, the wear detection mechanism 5, the two guide wheel assemblies 7 and the two debris removal assemblies 8 to move upward, so that the two separated guide wheel assemblies 7 and the two separated debris removal assemblies 8 rise to the two sides of the contact network wire 9 to be detected, and then rotating the screw rod 4 in the opposite direction to drive the two sliders 6 to move towards each other, so that the two guide wheel assemblies 7 and the two debris removal assemblies are moved away from each other at the same time. The components 8 move toward each other and are clamped on both sides of the contact wire 9 to be tested, so that the two guide wheels 72 are clamped in the clamping groove 91 on the outside of the contact wire 9 to be tested, and at the same time, the two splicing plates 82 wrap and clamp the outside of the contact wire 9 to be tested; the telescopic rod 522 is shortened in advance by the first clamping piece 524 and clamped in the fixed sleeve 521, and the scraper 83 is clamped and hidden in the hidden groove 822 by the second clamping piece 85, and the height between the guide wheel 72 and the top surface of the frame bracket 3 is set in advance, so that when the guide wheel 72 is clamped in the clamping groove 91 on the outside of the standard contact wire 9, the detection rod 511 The top of the device is in contact with and flush with the lowest end of the standard contact wire 9, and the distance sensor 513 is normally overlapped on the top surface of the frame bracket 3. The value detected by the distance sensor 513 is zero. At the same time, the lowest end of the splicing groove 821 is flush with the top of the detection rod 511; when the two guide wheels 72 are clamped in the clamping groove 91 on the outside of the contact wire 9 to be detected, and the two splicing plates 82 wrap and clamp the outside of the contact wire 9 to be detected, the first clamping member 524 and the second clamping member 85 are loosened, so that the telescopic rod 522 abuts against the conical surface of the conical block 512 under the action of the first elastic member 523, and the scraper Under the action of the second elastic member 84, the member 83 abuts against the lowest end of the contact network to be detected. If the lowest end of the contact network conductor 9 to be detected is worn, a gap will exist between the top end of the detection rod 511 and the lowest end of the contact network conductor 9 to be detected. The telescopic rod 522 squeezes the conical block 512, which causes the detection rod 511 to move upward and automatically compensates for the gap. At this time, the conical block 512 drives the distance measuring sensor 513 to move upward synchronously, so that the distance measuring sensor 513 leaves the top surface of the frame bracket 3. The distance measured by the distance measuring sensor 513 from the top surface of the frame bracket 3 is the thickness of the wear of the contact network conductor 9 to be detected at this position.Afterwards, the vehicle body 1 is controlled to move along the length direction of the contact wire 9 to be detected, and the guide wheel 72 rolls in the clamping groove 91 of the contact wire 9 to be detected to guide and support the detection component 51 and the two automatic compensation components 52. The splicing plate 82 slides on the outside of the contact wire 9 to be detected through the splicing groove 821 to guide and support the debris removal component 8. During the movement of the entire device, when the detection rod 511 reaches other positions, the extrusion cooperation between the telescopic rod 522 and the conical block 512 can ensure that the top end of the detection rod 511 is always at the most adjacent position of the other positions of the contact wire 9 to be detected. The scraper 83 abuts the lowest end of the contact wire 9 at all locations, and the distance values ​​from the top surface of the frame-shaped bracket 3 detected at different positions by the distance measuring sensor 513 can comprehensively reflect the wear value of the entire contact wire 9 at different positions. During the movement of the vehicle body 1, the scraper 83 can always abut the lowest end of the contact wire 9 at all locations through the second elastic member 84. Before the detection assembly 51 detects the contact wire 9, it can scrape away debris at the lowest end of the contact wire 9, allowing the detection assembly 51 to accurately detect the wear value of the lowest end of the contact wire 9.

[0049] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0050] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A contact network detection device, characterized in that: It comprises a vehicle body (1), a lifting part (2), a frame bracket (3), a screw rod (4), a wear detection mechanism (5), two sliders (6), two guide wheel assemblies (7) and two debris removal assemblies (8); The lifting part (2) is arranged on the top surface of the vehicle body (1), and the frame-shaped bracket (3) is fixedly connected to the lifting end of the lifting part (2); The screw rod (4) is located inside the frame-shaped bracket (3), and both ends of the screw rod (4) are rotatably connected to both sides of the frame-shaped bracket (3); The two sliders (6) are sleeved on the outer side of the screw rod (4) and are threadedly connected to the screw rod (4). The outer sides of the two sliders (6) are slidably connected to the inner side of the frame-shaped bracket (3) and can move toward or away from each other on the inner side of the frame-shaped bracket (3) under the drive of the screw rod (4); The wear detection mechanism (5) comprises a detection component (51) and two automatic compensation components (52) arranged on both sides of the detection component (51); The detection assembly (51) comprises a detection rod (511), a conical block (512) and a distance sensor (513); one end of the detection rod (511) is inserted into the interior of the frame bracket (3) and is slidably connected to the frame bracket (3); the conical block (512) is sleeved on the outer side of the top end of the detection rod (511) and is fixedly connected to the detection rod (511); the distance sensor (513) is fixedly connected to the bottom end of the conical block (512) and can be overlapped on the top surface of the frame bracket (3); The automatic compensation assembly (52) includes a fixed sleeve (521), a telescopic rod (522), a first elastic member (523), and a first clamping member (524); the guide wheel assembly (7) includes a first guide rod (71) and a guide wheel (72); and the debris removal assembly (8) includes a second guide rod (81), a splicing plate (82), a scraper (83), a second elastic member (84), and a second clamping member (85); The first guide rod (71) and the second guide rod (81) pass through the frame-shaped bracket (3) and are capable of sliding along the length direction of the frame-shaped bracket (3). The first guide rod (71) and the second guide rod (81) are respectively fixedly connected to two sides of the slider (6); The guide wheels (72) are arranged at the top end of the first guide rod (71), and the two guide wheels (72) can be clamped in the clamping groove (91) outside the contact wire (9); One end of the fixing sleeve (521) is fixedly connected to the outside of the first guide rod (71), and the first elastic member (523) is arranged inside the fixing sleeve (521) close to the first guide rod (71); One end of the telescopic rod (522) is inserted into the interior of the fixing sleeve (521) and is slidably connected to the inner side of the fixing sleeve (521); the telescopic rod (522) abuts against the first elastic member (523); and the end of the telescopic rod (522) facing away from the first elastic member (523) contacts the conical surface of the conical block (512); The first clamping member (524) can be inserted into the interior of the fixing sleeve (521) and can be clamped with the telescopic rod (522); The two splicing plates (82) are provided with splicing grooves (821) adapted to the profile of the contact network conductor (9), and the outer sides of the splicing plates (82) are fixedly connected to the second guide rod (81); A hidden groove (822) is provided on the bottom surface of the splicing groove (821), the second elastic member (84) is provided inside the hidden groove (822), the scraper (83) is inserted into the hidden groove (822) and is slidably connected to the hidden groove (822), and the bottom end of the scraper (83) is in contact with the top end of the second elastic member (84); The second clamping member (85) can be inserted into the hidden groove (822) and can be clamped with the scraper (83).

2. The contact network detection device according to claim 1, characterized in that: Reverse threads are respectively provided on the rod bodies at both ends of the screw rod (4), and the two sliders (6) are threadedly connected to the screw rod (4) via the reverse threads.

3. The contact network detection device according to claim 1, characterized in that: The guide wheel (72) includes a wheel body (721) and a U-shaped frame (722); The wheel body (721) is located inside the U-shaped frame (722) and is rotatably connected to the U-shaped frame (722); The U-shaped frame (722) is fixedly connected to the top end of the first guide rod (71); The wheel rim of the wheel body (721) can be adapted to the clamping groove (91) outside the contact wire (9), and can roll in the clamping groove (91) along the length direction of the contact wire (9).

4. The contact network detection device according to claim 1, characterized in that: The frame-shaped bracket (3) is provided with eight guide slots (31); The first guide rod (71) and the second guide rod (81) can pass through the guide groove (31) and are slidably connected to the guide groove (31).

5. The contact network detection device according to claim 1, characterized in that: It also includes a fixing cylinder (10), a third elastic member (11) and a clamping disc (12); The bottom end of the detection rod (511) is inserted into the interior of the fixing cylinder (10) and fixedly connected to the clamping plate (12); The third elastic member (11) is located inside the fixing cylinder (10) and is sleeved on the outside of the detection rod (511), and the two ends of the third elastic member (11) are respectively in contact with the inner side of the clamping plate (12) and the frame bracket (3); The top end of the fixing cylinder (10) is fixedly connected to the inner side of the frame-shaped bracket (3).

6. The contact network detection device according to claim 1, characterized in that: One end of the screw rod (4) extends out of the frame-shaped bracket (3) and is fixedly connected to a rotating handle (41).

7. The contact network detection device according to claim 1, characterized in that: The first clamping member (524) is threadedly connected to the fixing sleeve (521); a first clamping hole (5221) is provided on the telescopic rod (522); and the first clamping member (524) can be plugged into the first clamping hole (5221); The second clamping member (85) is threadedly connected to the splicing plate (82), and a second clamping hole (831) is provided on the scraper (83), and the second clamping member (85) can be plugged into the second clamping hole (831).

8. A contact network detection method, based on the contact network detection device according to any one of claims 1 to 7, characterized in that: include: The vehicle body (1) is moved to the bottom of the contact network, and the screw rod (4) is rotated to drive the two sliders (6) to move away from each other, so that the two guide wheel assemblies (7) and the two debris removal assemblies (8) move away from each other at the same time; The lifting part (2) is controlled to move upward to drive the frame bracket (3), the wear detection mechanism (5), the two guide wheel assemblies (7) and the two debris removal assemblies (8), so that the two separated guide wheel assemblies (7) and the two separated debris removal assemblies (8) rise to the two sides of the contact wire (9) to be detected, and then the screw rod (4) is rotated in the opposite direction to drive the two sliders (6) to move toward each other, so that the two guide wheel assemblies (7) and the two debris removal assemblies (8) move toward each other and are clamped on both sides of the contact wire (9) to be detected, so that the two guide wheels (72) are clamped in the clamping groove (91) outside the contact wire (9) to be detected, and at the same time, the two splicing plates (82) wrap and clamp the outside of the contact wire (9) to be detected; The telescopic rod (522) is shortened and clamped in the fixed sleeve (521) in advance by the first clamping member (524), and the scraper (83) is clamped and hidden in the hidden groove (822) by the second clamping member (85). The height of the guide wheel (72) relative to the top surface of the frame bracket (3) is set in advance so that when the guide wheel (72) is clamped in the clamping groove (91) outside the standard contact wire (9), the top end of the detection rod (511) contacts and is flush with the lowest end of the standard contact wire (9), and the distance sensor (513) is normally overlapped on the top surface of the frame bracket (3). The value detected by the distance sensor (513) is zero. At the same time, the lowest end of the splicing groove (821) is flush with the top end of the detection rod (511); When the two guide wheels (72) are clamped in the clamping groove (91) on the outside of the contact wire (9) to be tested, and the two splicing plates (82) wrap and clamp the outside of the contact wire (9) to be tested, the first clamping member (524) and the second clamping member (85) are loosened, so that the telescopic rod (522) abuts against the conical surface of the conical block (512) under the action of the first elastic member (523), and the scraper (83) abuts against the lowest end of the contact wire to be tested under the action of the second elastic member (84). If the lowest end of the contact wire (9) to be tested is If the end of the detection rod (511) is worn, there is a gap between the top end of the detection rod (511) and the lowest end of the contact wire (9) to be detected. The detection rod (511) is moved upward by squeezing the conical block (512) by the telescopic rod (522) to automatically compensate for the gap. At this time, the conical block (512) drives the distance measuring sensor (513) to move upward synchronously, so that the distance measuring sensor (513) leaves the top surface of the frame bracket (3). The distance detected by the distance measuring sensor (513) from the top surface of the frame bracket (3) is the thickness of the contact wire (9) to be detected that is worn at this position. Afterwards, the vehicle body (1) is controlled to move along the length direction of the contact wire (9) to be detected, the guide wheel (72) rolls in the clamping groove (91) of the contact wire (9) to be detected, thereby guiding and supporting the detection component (51) and the two automatic compensation components (52), and the splicing plate (82) slides on the outside of the contact wire (9) to be detected through the splicing groove (821) to guide and support the debris removal component (8). During the movement of the entire device, when the detection rod (511) reaches other positions, the top end of the detection rod (511) can always be in contact with the lowest end of other positions of the contact wire (9) to be detected through the extrusion fit of the telescopic rod (522) and the conical block (512). At the same time, the distance values ​​from the top surface of the frame bracket (3) detected at different positions by the distance measuring sensor (513) can fully reflect the wear values ​​of the contact wire (9) to be detected at different positions. During the movement of the vehicle body (1), the scraper (83) can always abut against the lowest end of all positions of the contact network wire (9) to be detected through the second elastic member (84), and can scrape away debris at the lowest end of the contact network wire (9) to be detected before the detection component (51) detects the contact network wire (9) to be detected, so that the detection component (51) can accurately detect the wear value of the lowest end of the contact network wire (9) to be detected.

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