A high-precision laser alignment measurement device based on track alignment detection

Abstract

The present invention discloses a high-precision laser alignment measurement device based on track alignment detection, which belongs to the field of rail transit detection technology. The device comprises a driving block and a detection block, wherein the driving block and the detection block are connected by a hinge, a driving mechanism is provided inside the driving block, and the driving mechanism comprises a limit block movably connected to the driving block, a spring is provided between the limit block and the driving block, and a motor is provided at the bottom of the limit block. The present invention detects the track width by a detection head, converts the track width change into the detection slider spacing for detection, and increases the variation of the detection slider spacing on both sides by the cross-sectional area difference of the first sealed cavity, the second sealed cavity, the third sealed cavity and the fourth sealed cavity according to the track width change at the offset, thereby effectively improving the detection accuracy. In addition, the track is subjected to line contact detection by a plurality of detection heads arranged in a vertical direction, and is suitable for straight and curved tracks.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit detection, and in particular to a high-precision laser alignment measurement device based on rail alignment detection. Background Art

[0002] Welding frogs and turnout rails is generally done by flash welding. However, misalignment of the welds often occurs after flash welding. Misaligned frogs not only increase the amount of grinding and repair, but also increase the number of secondary processing steps on the working edge. Frogs with serious misalignment need to have their legs sawed and re-welded, which seriously affects the construction quality and progress. A large part of the reason for the misalignment is that the two rails were not aligned at all before welding.

[0003] The existing technology mainly uses laser rulers to detect the alignment of rail welding. The alignment detection of the top of the rail is relatively easy and accurate because the top of the rail is located in the same plane. However, when using a laser ruler to detect the side of the rail, especially the curved rail with curvature, the detection error rate is high when detecting the curve because the side wall of the welded rail is a curved surface and the laser ruler uses a straight line method for detection.

[0004] How to invent a high-precision laser alignment measurement device based on track alignment detection to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a high-precision laser alignment measurement device based on track alignment detection, aiming to improve the problems raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] The present invention provides a high-precision laser alignment measurement device based on track alignment detection, comprising a driving block and a detection block, the driving block and the detection block are connected by a hinge, a driving mechanism is arranged inside the driving block, the driving mechanism comprises a limit block movably sleeved with the driving block, a spring seven is arranged between the limit block and the driving block, a motor is arranged at the bottom of the limit block, a limit bead is arranged on the side wall of the limit block, a driving roller is rotatably connected to the inside of the limit block, a cleaning component is further arranged inside the driving block, an offset detection mechanism and an amplification mechanism are arranged inside the detection block, the offset detection mechanism comprises a first sealed cavity and a fourth sealed cavity opened inside the detection block, a detection slider is sleeved inside the fourth sealed cavity, a laser transceiver is arranged inside the detection slider, a spring four is arranged between the detection slider and the fourth sealed cavity, a slider one is sleeved inside the first sealed cavity, a spring one is arranged between the first sealed cavity and the slider one, a plurality of detection heads are arranged on the side wall of the slider one, and a display screen is arranged on the top of the detection block;

[0008] The amplification mechanism includes a second sealed cavity and a third sealed cavity opened inside the detection block. A slider three is provided inside the detection block. The two ends of the slider three are respectively located inside the second sealed cavity and the third sealed cavity. The slider three is connected to the inside of the third sealed cavity and the second sealed cavity respectively with a spring three and a spring two. A deformation detection mechanism is also provided inside the slider one.

[0009] Preferably, the slider three is designed in an I-shape, and piston rods are designed on both sides of the slider three.

[0010] Preferably, the cross-sectional area of ​​the first sealed cavity is larger than that of the second sealed cavity, the cross-sectional area of ​​the third sealed cavity is larger than that of the second sealed cavity, and the cross-sectional area of ​​the third sealed cavity is larger than that of the fourth sealed cavity.

[0011] Preferably, the deformation detection mechanism includes a slider four movably sleeved inside the slider one, the side wall of the slider four is connected to a connecting shaft, the connecting shaft is fixedly connected to the detection head, a ball bearing is provided at the end of the detection head, a spring six is ​​connected between the slider four and the slider one, and a marking component is also provided inside the slider one.

[0012] Preferably, the marking assembly includes a liquid storage tank arranged on the top of the detection block, the detection block is provided with a connecting pipe connected to the liquid storage tank, the interior of the detection block is provided with a liquid supply channel connected to the connecting pipe, the interior of the slider one is provided with a hard pipe connected to the liquid supply channel, the side wall of the detection head is provided with a nozzle, the top and bottom of the slider four are respectively provided with an upper connecting block and a lower connecting block, the top of the upper connecting block is provided with annular groove six, annular groove seven, annular groove two and annular groove one in sequence from the slider four toward the detection head, the bottom of the lower connecting block is provided with annular groove five, annular groove eight, annular groove four and annular groove two in sequence from the slider four toward the detection head, a liquid supply pipe for supplying liquid to the nozzle is provided inside the connecting shaft, the upper connecting block is provided with pipeline one connecting annular groove three and the liquid supply pipe, the interior of the lower connecting block is provided with pipeline two connecting annular groove five and the liquid supply pipe, and the side wall of the hard pipe is provided with a connecting groove matching the annular groove one and the annular groove two.

[0013] Preferably, the upper connecting block and the lower connecting block between the upper and lower adjacent sliders four are slidably connected, the hard tube is slidably connected to the upper connecting block and the lower connecting block, and the connection is sealed, the positions of the annular groove one and the annular groove two correspond and are connected, the positions of the annular groove four and the annular groove three correspond and are connected, the positions of the annular groove eight and the annular groove seven correspond and are connected, the positions of the annular groove five and the annular groove six correspond and are connected, and the annular groove eight and the annular groove two are connected through a group of U-shaped grooves arranged inside the lower connecting block.

[0014] Preferably, multiple groups of detection blocks are provided, adjacent detection blocks are connected by hinges, the detection heads are designed to be evenly distributed along the vertical direction, and the detection heads inside the detection blocks and the detection heads on the same side of the adjacent detection blocks are designed to be staggered along the vertical direction.

[0015] Preferably, the cleaning assembly includes a sandpaper belt arranged inside the driving block, two groups of rollers are arranged inside the limit block, the sandpaper belt is sleeved on the outside of the two groups of rollers, and a bevel gear group is arranged inside the limit block. The bevel gear group is two groups of bevel gears meshing with each other, one group of bevel gears is connected to the rotating shaft of the driving roller, and the other group of bevel gears is connected to the central rotating shaft of one group of rollers.

[0016] In summary, the beneficial effects of the present invention are:

[0017] 1. The track width is detected by the detection head, and the track width change is converted into the detection slider spacing for detection. The track width change at the offset is increased by the cross-sectional area difference of the first sealed cavity, the second sealed cavity, the third sealed cavity and the fourth sealed cavity, which effectively improves the detection accuracy. In addition, the track is tested for line contact through multiple groups of detection heads arranged in the vertical direction, which is suitable for straight and curved tracks.

[0018] 2. The sandpaper belt is driven by the driving roller to rotate, and the area of ​​the track to be inspected is polished and pre-cleaned to avoid the influence of impurities on the track spacing detection, thereby improving the detection accuracy. At the same time, the track side wall is detected in real time by the detection heads arranged in a straight line. The deformation area is detected by extending the detection head and the misalignment of the upper connecting block and the lower connecting block. Only when there is a surface height difference in the adjacent detection head detection areas, the corresponding detection head will be extended to mark the deformation defect area, realizing the simultaneous marking of each deformation area, effectively marking the contour of the convex deformation or the center of the concave part of the deformation, which is convenient for the staff to observe and repair later. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is an overall schematic diagram provided by an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the external structure of the detection block provided by the embodiment of the present invention.

[0022] Figure 3 It is an overall schematic diagram of the amplification mechanism provided in an embodiment of the present invention.

[0023] Figure 4 1 is a schematic diagram of the interior of a slider provided in an embodiment of the present invention.

[0024] Figure 5 2 is an overall schematic diagram of a slider 4 provided in an embodiment of the present invention.

[0025] Figure 6 2 is a schematic diagram of the interior of a slider 4 provided in an embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of the interior of the upper connecting block and the lower connecting block provided in an embodiment of the present invention.

[0027] Figure 8 Schematic diagram of the interior of a driving block provided by an embodiment of the present invention.

[0028] Figure 9 It is a schematic diagram of the transmission of the sandpaper belt and the driving roller provided in an embodiment of the present invention.

[0029] Legend:

[0030] 100, driving block; 101, limiting block; 102, motor; 103, limiting bead; 104, driving roller; 105, sandpaper belt; 106, bevel gear set; 107, spring seven; 200, detection block; 201, display screen; 202, liquid storage tank; 203, slider one; 204, detection slider; 205, first sealed chamber; 206, second sealed chamber; 207, slider three; 208, third sealed chamber; 209, fourth sealed chamber; 210, slider four; 211, connecting pipe; 213, nozzle; 217, spring one; 2 18. Spring 2; 219. Spring 3; 220. Spring 4; 222. Spring 6; 223. Detection head; 224. Connecting shaft; 225. Liquid supply channel; 226. Upper connecting block; 227. Lower connecting block; 228. Hard tube; 229. Connecting groove; 230. Liquid supply pipe; 231. Annular groove 1; 232. Annular groove 2; 233. Annular groove 3; 234. Annular groove 4; 235. Annular groove 5; 236. Annular groove 6; 237. Annular groove 7; 238. Annular groove 8; 239. Pipeline 1; 240. Pipeline 2. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] Reference Figure 1-9 The present invention provides a high-precision laser alignment measurement device based on track alignment detection, including a driving block 100 and a detection block 200, the driving block 100 and the detection block 200 are connected by a hinge, a driving mechanism is provided inside the driving block 100, the driving mechanism includes a limit block 101 movably connected to the driving block 100, a spring 107 is provided between the limit block 101 and the driving block 100, a motor 102 is provided at the bottom of the limit block 101, a limit bead 103 is provided on the side wall of the limit block 101, a driving roller 104 is rotatably connected to the inside of the limit block 101, the rotating shaft of the driving roller 104 is transmission-connected to the motor 102, and a cleaning component is also provided inside the driving block 100. The detection block 200 is provided with an offset detection mechanism and an amplification mechanism. The offset detection mechanism includes a first sealed cavity 205 and a fourth sealed cavity 209 provided inside the detection block 200. The detection slider 204 is sleeved inside the fourth sealed cavity 209. A laser transceiver is provided inside the detection slider 204. A spring 4 220 is provided between the detection slider 204 and the fourth sealed cavity 209. A slider 1 203 is sleeved inside the first sealed cavity 205. A spring 1 217 is provided between the first sealed cavity 205 and the slider 1 203. Multiple groups of detection heads 223 are provided on the sidewalls of the slider 1 203. A display screen 201 electrically connected to the detection slider 204 is provided on the top of the detection block 200.

[0033] The amplification mechanism includes a second sealed cavity 206 and a third sealed cavity 208 opened inside the detection block 200. A slider three 207 is provided inside the detection block 200. The two ends of the slider three 207 are respectively located inside the second sealed cavity 206 and the third sealed cavity 208. The slider three 207 is connected to the interior of the third sealed cavity 208 and the interior of the second sealed cavity 206 with a spring three 219 and a spring two 218 respectively. The fourth sealed cavity 209 is connected to the third sealed cavity 208, and the second sealed cavity 206 is connected to the first sealed cavity 205. The first sealed cavity 205, the third sealed cavity 208, and the third sealed cavity 208 and the fourth sealed cavity 209 are filled with hydraulic oil. The interior of the slider one 203 is also provided with a deformation detection mechanism.

[0034] It should be noted that the driving mechanism, cleaning assembly, offset detection mechanism, amplification mechanism, deformation detection mechanism and their corresponding auxiliary structures are all symmetrically distributed inside the driving block 100 or the detection block 200, so as to limit or detect both sides of the track at the same time.

[0035] It should be noted that conventional laser emitters and laser receivers are respectively provided inside the detection sliders 204 correspondingly distributed on both sides of the detection block 200 , for monitoring the change in the spacing between the detection sliders 204 .

[0036] Reference Figure 3 The slider three 207 is designed in an I-shape, and piston rods are designed on both sides of the slider three 207. The side of the slider three 207 located inside the second sealing chamber 206 is provided with a piston rod that is sealed and movably connected to the second sealing chamber 206, and the side of the slider three 207 located inside the third sealing chamber 208 is provided with a piston rod that is sealed and movably connected to the third sealing chamber 208.

[0037] Furthermore, the cross-sectional area of ​​the first sealed cavity 205 is greater than the cross-sectional area of ​​the second sealed cavity 206, the cross-sectional area of ​​the third sealed cavity 208 is greater than the cross-sectional area of ​​the second sealed cavity 206, and the cross-sectional area of ​​the third sealed cavity 208 is greater than the cross-sectional area of ​​the fourth sealed cavity 209; it should be noted that since the slider 1 203 is sealed and movably connected to the first sealed cavity 205, the two ends of the slider 3 207 are respectively sealed and movably connected to the second sealed cavity 206 and the third sealed cavity 208, and the detection slider 204 is sealed and movably connected to the fourth sealed cavity 209, therefore, the cross-sectional area of ​​the above-mentioned third sealed cavity 208 refers to the cross-sectional area of ​​the side of the slider 3 207 facing the spring 3 219, the cross-sectional area of ​​the first sealed cavity 205 refers to the cross-sectional area of ​​the side of the slider 1 203 facing the second sealed cavity 206, the cross-sectional area of ​​the second sealed cavity 206 refers to the cross-sectional area of ​​the side of the slider 3 207 facing the slider 1 203, and the cross-sectional area of ​​the fourth sealed cavity 209 refers to the cross-sectional area of ​​the side of the detection slider 204 facing the spring 4 220 When the rails between the sliders 1 203 on both sides are misaligned and the spacing becomes larger, the sliders 1 203 on both sides are pushed toward the inside of the first sealed cavity 205, so that the sliders 1 203 generate pressure on the hydraulic oil between the first sealed cavity 205 and the slider 3 207, thereby pushing the slider 3 207 to move. When the slider 1 203 moves a small distance, due to the difference in cross-sectional area between the first sealed cavity 205 and the second sealed cavity 206, the hydraulic oil inside the first sealed cavity 205 enters the second sealed cavity 206, which can push the slider 3 207 to move a larger distance, achieving a primary amplification effect. When the slider 3 207 is moving, similarly, through the difference in cross-sectional area between the third sealed cavity 208 and the fourth sealed cavity 209, the hydraulic oil entering the fourth sealed cavity 209 from the third sealed cavity 208 can push the detection slider 204 to further move a distance greater than the moving distance of the slider 3 207, thereby achieving multi-stage amplification of the displacement of the detection slider 204 according to the change in the rail spacing.

[0038] Reference Figure 3-4 The deformation detection mechanism includes a slider 4 210 movably sleeved inside the slider 1 203. The side wall of the slider 4 210 is connected with a connecting shaft 224. The connecting shaft 224 is fixedly connected to the detection head 223. A ball bearing is provided at the end of the detection head 223. A spring 6 222 is connected between the slider 4 210 and the slider 1 203. A marking component is also provided inside the slider 1 203.

[0039] Reference Figure 4-7The marking assembly includes a liquid storage tank 202 arranged on the top of the detection block 200, the detection block 200 is provided with a connecting pipe 211 connected to the liquid storage tank 202, the interior of the detection block 200 is provided with a liquid supply channel 225 connected to the connecting pipe 211, the interior of the slider 1 203 is provided with a hard tube 228 connected to the liquid supply channel 225, the side wall of the detection head 223 is provided with a nozzle 213, the top and bottom of the slider 4 210 are respectively provided with an upper connecting block 226 and a lower connecting block 227, and the top of the upper connecting block 226 is sequentially opened with an annular groove 6 236, an annular groove 7 237, and an annular groove 238 in the direction from the slider 4 210 toward the detection head 223. 2 and annular groove 1 231, the bottom of the lower connecting block 227 is sequentially provided with annular groove 5 235, annular groove 8 238, annular groove 4 234 and annular groove 2 232 from the slider 4 210 toward the detection head 223, a liquid supply pipe 230 for supplying liquid to the nozzle 213 is provided inside the connecting shaft 224, a pipeline 1 239 connecting the annular groove 3 233 and the liquid supply pipe 230 is provided in the upper connecting block 226, a pipeline 240 connecting the annular groove 5 235 and the liquid supply pipe 230 is provided inside the lower connecting block 227, and a connecting groove 229 cooperating with the annular groove 1 231 and the annular groove 2 232 is provided on the side wall of the hard tube 228.

[0040] Furthermore, the upper connecting block 226 and the lower connecting block 227 between the upper and lower adjacent sliders 210 are slidably connected, the hard tube 228 is slidably connected to the upper connecting block 226 and the lower connecting block 227, and the connection is sealed, the positions of the annular groove 1 231 and the annular groove 2 232 correspond and are connected, the positions of the annular groove 4 234 and the annular groove 3 233 correspond and are connected, the positions of the annular groove 8 238 and the annular groove 7 237 correspond and are connected, the positions of the annular groove 5 235 and the annular groove 6 236 correspond and are connected, and the annular groove 8 238 and the annular groove 2 232 are connected through a group of U-shaped grooves arranged inside the lower connecting block 227.

[0041] Furthermore, multiple groups of detection blocks 200 are provided, and adjacent detection blocks 200 are connected by hinges. The detection heads 223 are designed to be evenly distributed in the vertical direction, and the detection heads 223 inside the detection blocks 200 and the detection heads 223 on the same side of the adjacent detection blocks 200 are designed to be staggered in the vertical direction. It should be noted that since there are detection gaps between the detection heads 223, by setting up multiple groups of detection blocks 200, the detection heads 223 inside each group of detection blocks 200 are staggered with the detection heads 223 inside the previous group of detection blocks 200, and the gaps detected by the previous group of detection heads 223 can be detected, thereby avoiding detection blind spots.

[0042] Reference Figure 8-9The cleaning component includes a sandpaper belt 105 arranged inside the driving block 100, two groups of rollers are arranged inside the limit block 101, the sandpaper belt 105 is sleeved on the outside of the two groups of rollers, and a bevel gear set 106 is arranged inside the limit block 101. The bevel gear set 106 is two groups of bevel gears meshing with each other, one group of the bevel gears is connected to the rotating shaft of the driving roller 104, and the other group of bevel gears is connected to the central rotating shaft of one group of rollers.

[0043] The working process of a high-precision laser alignment measurement device based on rail alignment detection is as follows:

[0044] When inspecting the track to be welded, first, the driving block 100 and the inspection block 200 are clamped to the track. When the driving block 100 is clamped to the track, the limit blocks 101 on both sides of the bottom of the driving block 100 are pulled apart in opposite directions at the same time, and then the driving block 100 is installed on the track. The driving block 100 is clamped and connected to the track by the thrust of the spring 7 107 and the restriction of the track contour by the limit beads 103. The counterweight roller at the bottom of the driving block 100 is used to enable the driving block 100 to move forward steadily along the track surface. When the inspection block 200 is clamped to the track, the slider 1 203 inside the same group of inspection blocks 200 is moved away from the track at the same time, and then the inspection block 200 is clamped to the track so that the inspection head 223 distributed on the side wall of the slider 1 203 corresponds to the side wall of the track.

[0045] It should be noted that the bottom of the detection block 200 is also provided with a counterweight roller identical to the bottom of the driving block 100, which provides a support effect when the detection block 200 moves, ensuring stable detection of the track side wall by the detection head 223 and avoiding displacement of the detection head 223 in the vertical direction.

[0046] Furthermore, after the driving block 100 and the detection block 200 are installed, the gap data between the detection sliders 204 are detected in real time and displayed on the display screen 201 through the laser emitter and laser receiver inside the detection sliders 204 on both sides of the same set of detection blocks 200. By pre-designing and calculating the width spacing parameters of the track and the parameters of the detection block 200, including the parameter design of the first sealed cavity 205, the second sealed cavity 206, the slider three 207, the third sealed cavity 208 and the fourth sealed cavity 209, when the detection block 200 is clamped on the track, the distance parameter detected between the detection sliders 204 corresponds to the width of the track to be detected. It should be noted that if the parameter detected between the detection sliders 204 is large, it means that the width of the track here is not close to the track. The specified width of the track does not match. When the track spacing is small, the compression and advancement of slider 1 203 is insufficient. Correspondingly, the compression and advancement of slider 3 207 by slider 1 203 is insufficient, which makes the compression and advancement of detection slider 204 by slider 3 207 through hydraulic oil insufficient, making the detection slider 204 different from the pre-specified track parameters. The extension of the detection slider 204 is smaller, so that the detection parameters become larger, indicating that the track parameters here are inconsistent with the pre-set track parameters. Correspondingly, a smaller detection parameter indicates that the track here is wider, so the track here is detected and marked, and then the track clamping position is changed until the initial detection parameter of the detection slider 204 corresponds to the pre-set position, indicating that the width of the track here is consistent with the track standard parameter position, and detection can be started here.

[0047] During detection, the motor 102 is first started to drive the driving roller 104 to rotate, and then the driving block 100 is driven to move stably on the track surface through the rotation of the driving roller 104 and the rolling and limiting of the limiting bead 103. At the same time, the rotating shaft of the driving roller 104 drives the sandpaper belt 105 to rotate through the transmission of the bevel gear set 106 to polish and pre-clean the track surface, remove rust, oil stains, loose coatings and other impurities on the track surface, and avoid their influence on the track spacing detection, thereby improving the detection accuracy.

[0048] Furthermore, the driving block 100 drives the detection block 200 to move along the track surface through the hinge, and the real-time track spacing can be observed through the display screen 201. When the detection block 200 passes through the misaligned port of the track to be welded, since the cross-sections of the ports are the same, when they are misaligned, due to the misalignment of the end faces, the width detected by the detection block 200 when passing through the track at that location will be significantly larger. At this time, when the detection block 200 passes, the misaligned port part will push the slider 1 203 toward the inside of the first sealed cavity 205 through the detection head 223, compressing the hydraulic oil inside the first sealed cavity 205, thereby pushing the slider 3 207 to move. When the slider 1 203 moves a small distance due to the change in track width, and due to the difference in cross-sectional area between the first sealed cavity 205 and the second sealed cavity 206, correspondingly, when the hydraulic oil inside the first sealed cavity 205 enters the inside of the second sealed cavity 206, it can push the slider 3 207 to move a larger distance, thereby achieving a primary amplification effect. When the slider 3 207 is moving, similarly, through the third sealed cavity 208 and the fourth sealed cavity Due to the cross-sectional area difference between the detection slider 204 and the detection slider 207, the hydraulic oil entering the fourth sealed chamber 209 from the third sealed chamber 208 can push the detection slider 204 to move a distance greater than the movement distance of the third slider 207. This realizes multi-level amplification of the displacement of the detection slider 204 according to the change in the rail spacing, pushing the detection slider 204 to move a greater distance, thereby increasing the amount of change in the distance detection between the detection sliders 204 on both sides, so that it can be more intuitively displayed on the display screen 201. This not only facilitates observation, but also increases the accuracy of the detection by amplifying the detection amount. It should be noted that when inspecting a curved track with a certain curvature, the detection block 200 moves on the curved track, and multiple groups of detection heads 223 detect the inner and outer widths of the track. Since the detection heads 223 are arranged in a straight line, similar to the line contact method, they perform real-time detection of the track width. Compared with traditional laser ruler detection, this design only performs real-time line contact detection of the track and will not be interfered by the curvature of the curved track. Therefore, this solution is applicable to both straight and curved tracks.

[0049] It should be noted that the detection block 200 only performs real-time detection on the width of the track. Even when the detection block 200 is affected by a small amount of external force, especially the friction or centrifugal force when it is on a curved track, when one side of the detection block 200 is affected by a certain external force, causing the slider 203 to be compressed or extended a certain distance toward the inside of the first sealed cavity 205, the detection slider 204 will extend or retract a certain distance accordingly. Correspondingly, if the width of the track does not change at this time, the slider 203 on the other side will extend or be compressed by the same distance under the elastic force of the spring 217, so that the detection slider 204 on the other side will also retract or extend the corresponding distance accordingly, which can effectively achieve anti-interference and improve the accuracy of detection.

[0050] During the track processing or laying process, since the track ends serve as free boundaries and lack continuous support, they are prone to local plastic deformation due to external forces, or residual stress at the ends during track rolling and cutting, or collision damage during transportation, etc., which may cause track deformation defects and other problems. When slider 1 203 moves along the track side wall, when local deformation of the track side wall is detected, the deformed protruding part will push slider 1 203 toward the inside of the first sealed cavity 205 through the detection head 223 and slider 4 210. At this time, the detection heads 223 arranged in a straight line detect and mark the deformed area. Since the detection head 223 of the deformed protruding part compresses the spring 6 222 to the limit under the action of pressure, the detection head 223 at the recessed edge is not There is pressure from the deformed protrusion, and the elastic force of the spring six 222 causes the slider four 210 to drive the detection head 223 to extend, so that the slider four 210 drives the upper connecting block 226 or the lower connecting block 227 to slide along the hard tube 228, so that the annular groove one 231 or the annular groove two 232 is connected with the connecting groove 229, so that the marking solution inside the hard tube 228 enters the annular groove eight 238 and the interior of the pipeline one 239 through the annular groove one 231 or the annular groove two 232, and is further discharged to the liquid supply pipe 230 inside the corresponding group of detection heads 223 through the pipeline one 239 or the pipeline two 240, and is finally discharged through the nozzle 213 to mark the edge of the deformed part. Correspondingly, when a concave area is detected, the concave area can also be marked by the pop-up of the slider four 210.

[0051] It should be noted that an upper connecting block 226 and a lower connecting block 227 are provided between adjacent sliders 210. When passing through the range deformation area, if the detection heads 223 are extended at the same time or the extended distances are close, the difference in the detection extension distances between the adjacent detection heads 223 is small, and the distances extended by the two adjacent groups of sliders 210 are close to each other. At this time, the upper connecting block 226 and the lower connecting block 227 between the two groups of sliders 210 move the same distance. Since in the initial state, the detection head 223 is pressed against the side wall of the rail and the spring 6 222 is compressed, the annular groove 1 231 and the annular groove 232 between the upper connecting block 226 and the lower connecting block 227 are The positions of the annular groove 232 in the horizontal direction coincide with each other, and the annular groove 3 233 and the annular groove 4 234 as well as the annular groove 5 235 and the annular groove 6 236 including the annular groove 7 237 and the annular groove 8 238 also correspond to each other in the horizontal direction and coincide with each other. At this time, the annular groove 7 237 and the annular groove 8 238 are not connected to any group of the annular groove 3 233, the annular groove 4 234, the annular groove 5 235 and the annular groove 6 236, so that although the annular groove 232 and the annular groove 1 231 are connected to the connecting groove 229, there is no passage for the labeling solution to be discharged. Only when there is a difference in the detection distance between the adjacent detection heads 223, the adjacent detection heads 22 When the extension distances of the sliders 3 are different or one group is extended while the other is compressed, the upper connecting block 226 and the lower connecting block 227 between the adjacent sliders 4 210 move relative to each other. First, the movement of the upper connecting block 226 or the lower connecting block 227 causes the connecting groove 229 to communicate with the inside of the annular groove 1 231 and the annular groove 232, and to communicate with the annular groove 8 238. Further, the relative movement of the upper connecting block 226 and the lower connecting block 227 causes the annular groove 7 237 and the annular groove 8 238 to be misaligned, so that the annular groove 7 237 communicates with the annular groove 4 234 or the annular groove 5 235, and the annular groove 8 238 communicates with the annular groove 3 233 or the annular groove 8 234. The annular groove 6 236 is connected, and the marking solution can be discharged to the corresponding detection head 223 through the annular groove 8 238 or the pipeline 1 239, and then the mark is discharged through the nozzle 213. Therefore, during the detection process, the detection heads 223 arranged linearly can simultaneously detect a straight line of track cross-section and simultaneously mark each deformed area, effectively marking the deformed contour of the deformed area or the center of the depression, which is convenient for staff to observe and repair later. At the same time, because marking is only performed when there is a height difference between two adjacent groups of devices, it can effectively avoid mismarking normal minor fluctuations in the track. For example, when the track causes small, continuous height changes due to temperature changes or normal wear and tear, this interlocking design will not easily mark, reducing the number of unnecessary marks and improving the accuracy of marking.

[0052] It should be noted that since the turning point of the rail surface may be designed to be arc-shaped, the length of each group of connecting shafts 224 can be designed accordingly according to the cross-section of the rail side wall, so that when each group of spring six 222 is compressed to a straight line, the balls at the end of each group of detection heads 223 are in contact with the rail surface.

[0053] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A high-precision laser alignment measurement device based on track alignment detection, comprising a driving block (100) and a detection block (200), wherein the driving block (100) and the detection block (200) are connected by a hinge, characterized in that: The driving block (100) is provided with a driving mechanism inside, the driving mechanism includes a limit block (101) movably connected to the driving block (100), a spring (107) is provided between the limit block (101) and the driving block (100), a motor (102) is provided at the bottom of the limit block (101), a limit bead (103) is provided on the side wall of the limit block (101), the limit block (101) is rotatably connected to a driving roller (104), the driving block (100) is further provided with a cleaning component, the detection block (200) is provided with a deviation detection mechanism and an amplification mechanism, the deviation detection mechanism includes a motor (102) provided at the bottom of the limit block (101), a limit bead (103) is provided on the side wall of the limit block (101), the limit block (101) is rotatably connected to a driving roller (104), the driving block (100) is further provided with a cleaning component, the detection block (200) is provided with a deviation detection mechanism and an amplification mechanism, the deviation detection mechanism includes a motor (102) provided at the detection block ( 200), a first sealed cavity (205) and a fourth sealed cavity (209) are provided inside the fourth sealed cavity (209), a detection slider (204) is sleeved inside the detection slider (204), a laser transceiver is provided inside the detection slider (204), a spring four (220) is provided between the detection slider (204) and the fourth sealed cavity (209), a slider one (203) is sleeved inside the first sealed cavity (205), a spring one (217) is provided between the first sealed cavity (205) and the slider one (203), a plurality of detection heads (223) are provided on the side wall of the slider one (203), and a display screen (201) is provided on the top of the detection block (200); The amplification mechanism includes a second sealed cavity (206) and a third sealed cavity (208) opened inside the detection block (200); a slider three (207) is provided inside the detection block (200); two ends of the slider three (207) are respectively located inside the second sealed cavity (206) and the third sealed cavity (208); the slider three (207) is connected to the third sealed cavity (208) and the second sealed cavity (206) with a spring three (219) and a spring two (218), respectively; and a deformation detection mechanism is also provided inside the slider one (203).

2. A high-precision laser alignment measurement device based on rail alignment detection according to claim 1, characterized in that: The slider three (207) is designed in an I-shape, and piston rods are designed on both sides of the slider three (207).

3. The high-precision laser alignment measurement device based on rail alignment detection according to claim 1, characterized in that: The cross-sectional area of ​​the first sealed cavity (205) is greater than the cross-sectional area of ​​the second sealed cavity (206), the cross-sectional area of ​​the third sealed cavity (208) is greater than the cross-sectional area of ​​the second sealed cavity (206), and the cross-sectional area of ​​the third sealed cavity (208) is greater than the cross-sectional area of ​​the fourth sealed cavity (209).

4. The high-precision laser alignment measurement device based on rail alignment detection according to claim 1, characterized in that: The deformation detection mechanism includes a slider four (210) movably sleeved inside a slider one (203), a side wall of the slider four (210) is connected to a connecting shaft (224), the connecting shaft (224) is fixedly connected to a detection head (223), a ball bearing is provided at the end of the detection head (223), a spring six (222) is connected between the slider four (210) and the slider one (203), and a marking component is also provided inside the slider one (203).

5. The high-precision laser alignment measurement device based on track alignment detection according to claim 4, characterized in that: The marking assembly includes a liquid storage tank (202) arranged on the top of the detection block (200), the detection block (200) is provided with a connecting pipe (211) connected to the liquid storage tank (202), the interior of the detection block (200) is provided with a liquid supply channel (225) connected to the connecting pipe (211), the interior of the slider (203) is provided with a hard pipe (228) connected to the liquid supply channel (225), the side wall of the detection head (223) is provided with a nozzle (213), the top and bottom of the slider (210) are respectively provided with an upper connecting block (226) and a lower connecting block (227), and the top of the upper connecting block (226) is provided with an annular groove (236), an annular groove (237), an annular groove (238) and an annular groove (239) in sequence from the slider (210) toward the detection head (223). 2) and annular groove one (231), the bottom of the lower connecting block (227) is provided with annular groove five (235), annular groove eight (238), annular groove four (234) and annular groove two (232) in sequence from the slider four (210) toward the detection head (223), the interior of the connecting shaft (224) is provided with a liquid supply pipe (230) for supplying liquid to the nozzle (213), the upper connecting block (226) is provided with a pipeline one (239) for connecting the annular groove three (233) and the liquid supply pipe (230), the interior of the lower connecting block (227) is provided with a pipeline two (240) for connecting the annular groove five (235) and the liquid supply pipe (230), and the side wall of the hard tube (228) is provided with a connecting groove (229) that matches the annular groove one (231) and the annular groove two (232).

6. The high-precision laser alignment measurement device based on rail alignment detection according to claim 5, characterized in that: The hard tube (228) is slidably connected to the upper connecting block (226) and the lower connecting block (227), and the connection is sealed. The positions of the annular groove 1 (231) and the annular groove 2 (232) correspond to and are connected. The positions of the annular groove 4 (234) and the annular groove 3 (233) correspond to and are connected. The positions of the annular groove 8 (238) and the annular groove 7 (237) correspond to and are connected. The positions of the annular groove 5 (235) and the annular groove 6 (236) correspond to and are connected. The annular groove 8 (238) and the annular groove 2 (232) are connected through a group of U-shaped grooves arranged inside the lower connecting block (227).

7. The high-precision laser alignment measurement device based on track alignment detection according to claim 1, characterized in that: The detection blocks (200) are provided with multiple groups, and adjacent detection blocks (200) are connected by hinges. The detection heads (223) are designed to be evenly distributed along the vertical direction, and the detection heads (223) inside the detection blocks (200) and the detection heads (223) on the same side inside the adjacent detection blocks (200) are designed to be staggered in the vertical direction.

8. The high-precision laser alignment measurement device based on rail alignment detection according to claim 1, characterized in that: The cleaning assembly comprises a sandpaper belt (105) arranged inside the driving block (100); two groups of rollers are arranged inside the limiting block (101); the sandpaper belt (105) is sleeved on the outside of the two groups of rollers; a bevel gear set (106) is arranged inside the limiting block (101); the bevel gear set (106) is two groups of mutually meshing bevel gears, one group of the bevel gears is connected to the rotating shaft of the driving roller (104), and the other group of the bevel gears is connected to the central rotating shaft of one group of rollers.

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