Length measuring device for steel rail detection

Abstract

The invention discloses a length measuring device for steel rail detection, and relates to the technical field of detection equipment, the length measuring device comprises a track, the outer surface of the track is slidably provided with a locking assembly, and the length measuring device is fixed on the outer surface of the track through the locking assembly; according to the length measuring device for steel rail detection, when an adjusting plate rotates and drives the adjusting plate to move away from a supporting plate, a movable block is driven to move, then a movable rod arranged at the upper end of the movable block is driven to move synchronously, and due to the fact that a pressing block is arranged at the end of the movable rod, a rail is fixed through the pressing block; the track is locked through cooperation of the extrusion block and the pressing block, so that shaking is avoided during detection, and meanwhile, during fixing, the convex block is pressed through the push plate, so that the whole roller is kept stable.

Description

Technical Field

[0001] The invention relates to detection equipment technology, and in particular to a length measuring device for rail detection. Background Art

[0002] When a train is running on the track, the rolling, traction, braking and the temperature stress of the seamless line will cause the rail to move longitudinally, which is called rail creep. If the rail creep is too large, the rail will not be able to produce large tensile and compressive stresses. In severe cases, it may cause rail breakage or expansion accidents, affecting driving safety.

[0003] Length measuring devices for rail inspection are mainly used in railway maintenance and inspection to ensure that the length and condition of the rails meet the standards and avoid safety problems caused by length changes or damage.

[0004] A Chinese invention patent with publication number CN117968618B discloses a rail straightness detection device, in which, when the rail is transferred, the movable support wheel is in the middle position, and the movable support wheel is against the waist of the rail, thereby preventing the rail from tipping over during the transfer process; when the rail is at the lower side of the straightness detection unit for detection; during the rising process of the fixed lifting unit, the movable bracket is driven to slide along the movable sliding shaft, so that the movable support wheel moves to both sides, and after the fixed lifting unit contacts the rail, the rail is separated from the transfer surface of the conveyor roller; then the straightness detection unit performs contact-type straightness detection on the top of the rail.

[0005] When using existing equipment, the accuracy of manual inspection is easily affected by the proficiency and state of the inspectors, especially fatigue after long-term work, which increases the error rate in the measurement process. At the same time, in order to improve the measurement accuracy, the laser rangefinder sometimes needs to perform multiple measurements at different points on the rail, which requires constant position adjustment. Due to the poor overall flexibility, the inspection efficiency is greatly reduced, and when the adjustment is completed and fixed, the overall fluctuation is easy to occur, thereby affecting the subsequent inspection results. Therefore, a length measuring device for rail inspection has been developed. Summary of the invention

[0006] The object of the present invention is to provide a length measuring device for rail detection to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a length measuring device for rail detection, comprising a rail, a locking assembly being slidably mounted on the outer surface of the rail and being fixed to the outer surface of the rail by the locking assembly; The locking assembly comprises a fixing plate connected to the track, a docking block is arranged at the end of the fixing plate, a baffle is arranged at one side of the fixing plate, a driving member is arranged at one side of the baffle, an output end of the driving member passes through and extends to the other end of the baffle, a rotating drum is arranged at the output end of the driving member, and a first arc groove and a second arc groove are opened on one side of the outer surface of the rotating drum; A positioning shaft is disposed at the end of the baffle, and a swing plate is disposed at the end of the positioning shaft, and the outer surface of the end of the swing plate is slidably connected to the inner wall of the second arc-shaped groove; An adjusting plate is arranged at one end of the positioning shaft away from the swing plate, a supporting plate is arranged at one end of the adjusting plate, a positioning rod is arranged at the end of the supporting plate, a roller is arranged at the end of the positioning rod, and the outer surface of the roller is in contact with the outer surface of the track; A movable block is slidably mounted on one end of the adjustment plate away from the support plate, a guide groove is provided at the end of the movable block, an inner wall of the guide groove is slidably connected to the outer surface of the end of the adjustment plate, a moving rod is provided at the end of the movable block, and a pressing block is provided at the end of the moving rod; A limit plate is slidably mounted on the outer surface of the moving rod, a slider is disposed at the middle position of the end of the limit plate, the outer surface of the slider is slidably connected to the inner wall of the first arc-shaped groove, and a movable rod is disposed on the outer surface of the limit plate, and both ends of the movable rod are connected to the inner wall of the baffle; A positioning assembly is assembled on the upper end of the docking block, and the measuring device is fixed by the positioning assembly.

[0008] As a further optimization solution of the present invention, an extrusion block is provided on one side of the fixing plate, and an end of the extrusion block is in contact with the outer surface of the track.

[0009] As a further optimization solution of the present invention, a protrusion is provided at the end of the roller, and a push plate is provided at the end of the pressing block, and the outer surface of the push plate is in contact with the outer surface of the protrusion.

[0010] As a further optimization solution of the present invention, the positioning assembly includes a clamping plate connected to the docking block, a support column is provided at the end of the clamping plate, and a bottom plate is provided at the end of the support column.

[0011] As a further optimization solution of the present invention, a telescopic member is provided at a middle position on the upper end of the clamping plate, and an output end of the telescopic member penetrates and extends to the other end of the bottom plate.

[0012] As a further optimization solution of the present invention, a fixing cylinder is provided at the upper end of the bottom plate, a conical block is slidably mounted on the inner wall of the fixing cylinder, and the lower end of the conical block is connected to the output end of the telescopic member.

[0013] As a further optimization scheme of the present invention, a plurality of power grooves are evenly opened on the outer surface of the fixed cylinder, a power rod is slidably installed on the inner wall of the power groove, and the end of the power rod is slidably connected to the outer surface of the conical block.

[0014] As a further optimization solution of the present invention, a clamping block corresponding to the power groove is rotatably mounted on the outer surface of the fixing cylinder.

[0015] As a further optimization solution of the present invention, a limiting groove is provided at the upper end of the outer surface of the fixing tube, and an elastic member is provided on the inner wall of the limiting groove.

[0016] As a further optimization solution of the present invention, an extension rod is slidably mounted on the inner wall of the limiting groove, and the end of the extension rod is connected to the end of the elastic member.

[0017] Compared with the prior art, the length measuring device for rail inspection provided by the present invention has the following beneficial effects: when the adjusting plate rotates, the movable block away from one end of the support plate is driven to move, and the movable block is driven to move, and then the movable rod arranged at the upper end of the movable block is synchronously driven to move. Since a pressing block is arranged at the end of the movable rod, the track is fixed by the pressing block; the track is locked by the extrusion block and the pressing block, so that no shaking occurs during inspection, and at the same time, when fixing, the protrusion is pressed by the push plate, so that the roller remains stable as a whole.

[0018] When the clamp rotates, the laser detection equipment placed on the fixed cylinder is locked to ensure that the laser equipment will not shake during operation. When the entire equipment is moved, the laser equipment is removed first, and then moved to a suitable position and reassembled to reduce the risk of terrible damage to the laser equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A first schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A second schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 3 A first schematic diagram of a locking assembly structure provided by an embodiment of the present invention; Figure 4A second schematic diagram of a locking assembly structure provided by an embodiment of the present invention; Figure 5 A first cross-sectional view of the internal structure of a locking assembly provided by an embodiment of the present invention; Figure 6 A second cross-sectional view of the internal structure of the locking assembly provided by an embodiment of the present invention; Figure 7 A third cross-sectional view of the internal structure of the locking assembly provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a positioning component provided in an embodiment of the present invention; Fig. 9 A cross-sectional view of the internal structure of a positioning assembly provided in an embodiment of the present invention.

[0021] Description of reference numerals: 1. Track; 2. Locking assembly; 3. Positioning assembly; 21. Fixed plate; 211. Extrusion block; 22. Docking block; 23. Baffle; 24. Driving member; 25. Rotating drum; 251. First arc groove; 252. Second arc groove; 26. Positioning shaft; 261. Swinging plate; 27. Adjusting plate; 271. Support plate; 272. Positioning rod; 273. Roller; 274. Bump; 28. Movable block; 281. Guide groove; 282. Moving rod; 283. Pressing block; 284. Push plate; 29. ​​Limiting plate; 291. Sliding block; 292. Movable rod; 31. Snap-in plate; 32. Telescopic member; 33. Support column; 34. Bottom plate; 35. Fixed cylinder; 351. Limiting groove; 352. Elastic member; 353. Extension rod; 354. Power groove; 36. Conical block; 37. Power rod; 38. Clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element 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, unless otherwise clearly specified and limited, 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example: See Figure 1-Figure 9 A length measuring device for rail inspection includes a rail 1, and a locking component 2 is slidably installed on the outer surface of the rail 1 and fixed to the outer surface of the rail 1 through the locking component 2.

[0025] Among them, the locking assembly 2 includes a fixed plate 21 connected to the track 1, a docking block 22 is provided at the end of the fixed plate 21, and a baffle 23 is provided on one side of the fixed plate 21, a driving member 24 is provided on one side of the baffle 23, and the output end of the driving member 24 passes through and extends to the other end of the baffle 23, and a rotating drum 25 is provided at the output end of the driving member 24, and a first arc groove 251 and a second arc groove 252 are opened on one side of the outer surface of the rotating drum 25.

[0026] In this embodiment, the driving member 24 is a device with power output such as a motor, and is connected to an external control device. When the driving member 24 is started, it synchronously drives the rotating drum 25 arranged at its output end to rotate. At the same time, when the rotating drum 25 rotates, the first arc groove 251 and the second arc groove 252 arranged on its outer surface are driven to rotate, and the rotating drum 25 is supported by the baffle 23.

[0027] At the same time, the docking block 22 is used to dock the positioning assembly 3, thereby ensuring the stability of the positioning assembly 3.

[0028] Furthermore, a positioning shaft 26 is disposed at the end of the baffle 23 , and a swing plate 261 is disposed at the end of the positioning shaft 26 . The outer surface of the end of the swing plate 261 is slidably connected to the inner wall of the second arc-shaped groove 252 .

[0029] Specifically, the positioning shaft 26 is supported by the connecting block. When the drum 25 rotates, the second arc groove 252 provided on its outer surface drives the swing plate 261 to swing, wherein the end of the swing plate 261 is connected to the end of the positioning shaft 26, thereby driving the positioning shaft 26 to rotate.

[0030] Furthermore, an adjustment plate 27 is provided at one end of the positioning shaft 26 away from the swing plate 261, a support plate 271 is provided at one end of the adjustment plate 27, a positioning rod 272 is provided at the end of the support plate 271, a roller 273 is provided at the end of the positioning rod 272, and the outer surface of the roller 273 is in contact with the outer surface of the track 1.

[0031] Specifically, when the positioning shaft 26 rotates, the adjustment plate 27 disposed at its end is synchronously driven to rotate, and when the adjustment plate 27 rotates, the support plate 271 disposed at its end is driven to move, and at the same time, the positioning rod 272 drives the roller 273 to move, so that the roller 273 moves to a suitable position.

[0032] Furthermore, a movable block 28 is slidably installed at one end of the adjustment plate 27 away from the support plate 271, a guide groove 281 is opened at the end of the movable block 28, the inner wall of the guide groove 281 is slidably connected to the outer surface of the end of the adjustment plate 27, a moving rod 282 is provided at the end of the movable block 28, and a pressing block 283 is provided at the end of the moving rod 282.

[0033] Specifically, when the adjustment plate 27 rotates, the movable block 28 away from one end of the support plate 271 is driven to move, and the movable block 28 is driven to move, and then the moving rod 282 set at the upper end of the movable block 28 is synchronously driven to move. Since a pressing block 283 is set at the end of the moving rod 282, the track 1 is fixed by the pressing block 283.

[0034] Furthermore, a limiting plate 29 is slidably installed on the outer surface of the movable rod 282, and a slider 291 is provided at the middle position of the end of the limiting plate 29. The outer surface of the slider 291 is slidably connected to the inner wall of the first arc-shaped groove 251. At the same time, a movable rod 292 is provided on the outer surface of the limiting plate 29, and both ends of the movable rod 292 are connected to the inner wall of the baffle 23.

[0035] Specifically, the slider 291 at the end of the limit plate 29 is slidably connected to the inner wall of the first arc groove 251, thereby driving the limit plate 29 to move, wherein the limit plate 29 is limited by the movable rod 292 so that the limit plate 29 will not be disturbed when moving.

[0036] Furthermore, a squeeze block 211 is provided on one side of the fixing plate 21, and the end of the squeeze block 211 is in contact with the outer surface of the track 1. A protrusion 274 is provided on the end of the roller 273, and a push plate 284 is provided on the end of the pressing block 283, and the outer surface of the push plate 284 is in contact with the outer surface of the protrusion 274.

[0037] Specifically, the track 1 is locked by the extrusion block 211 in cooperation with the pressing block 283 so that no shaking occurs during detection. At the same time, when fixing, the protrusion 274 is pressed by the push plate 284 so that the roller 273 remains stable as a whole.

[0038] Furthermore, the positioning assembly 3 is assembled on the upper end of the docking block 22, and the measuring device is fixed by the positioning assembly 3. The positioning assembly 3 includes a clamping plate 31 connected to the docking block 22, a support column 33 is provided at the end of the clamping plate 31, and a bottom plate 34 is provided at the end of the support column 33. A telescopic member 32 is provided at the middle position of the upper end of the clamping plate 31, and the output end of the telescopic member 32 passes through and extends to the other end of the bottom plate 34.

[0039] Specifically, the telescopic member 32 is a device with a telescopic function such as an electric telescopic rod, and is connected to an external control device, while supporting the bottom plate 34 through the support column 33.

[0040] An annular block is provided at the lower end of the clamping plate 31, and the annular block is docked with the docking block 22, so that positioning components 3 of different specifications can be replaced according to actual conditions to make them suitable for different scenarios.

[0041] Furthermore, a fixed cylinder 35 is provided at the upper end of the bottom plate 34, a conical block 36 is slidably mounted on the inner wall of the fixed cylinder 35, and the lower end of the conical block 36 is connected to the output end of the telescopic member 32. A plurality of power grooves 354 are evenly arranged on the outer surface of the fixed cylinder 35, a power rod 37 is slidably mounted on the inner wall of the power groove 354, and the end of the power rod 37 is slidably connected to the outer surface of the conical block 36.

[0042] Specifically, when the telescopic member 32 is started, the conical block 36 arranged at its output end is synchronously driven to move. Since the end of the power rod 37 is in contact with the outer surface of the conical block 36, when the conical block 36 moves, the power rod 37 is squeezed, so that the power rod 37 moves outward along the power groove 354 and pushes the clamping block 38 installed on the fixed cylinder 35 to rotate.

[0043] Furthermore, a clamping block 38 corresponding to the power groove 354 is rotatably mounted on the outer surface of the fixing cylinder 35. A limiting groove 351 is provided at the upper end of the outer surface of the fixing cylinder 35, and an elastic member 352 is provided on the inner wall of the limiting groove 351. At the same time, an extension rod 353 is slidably mounted on the inner wall of the limiting groove 351, and the end of the extension rod 353 is connected to the end of the elastic member 352.

[0044] Specifically, when the clamp 38 rotates, the laser detection equipment placed on the fixed cylinder 35 is locked to ensure that the laser equipment does not shake during operation, and when the entire equipment is moved, the laser equipment is first removed and then reassembled after being moved to a suitable position to reduce the risk of terrible damage to the laser equipment.

[0045] The elastic member 352 and the extension rod 353 of the inner wall of the groove 351 are fitted to the outer surface of the clamping block 38, so that after the conical block 36 returns to the initial position, the elastic member 352 and the extension rod 353 push the clamping block 38 to rotate, thereby separating the clamping block 38 from the laser device. The elastic member 352 is an elastic member such as a spring.

[0046] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A length measuring device for rail detection, characterized in that: It comprises a track (1), wherein a locking component (2) is slidably mounted on the outer surface of the track (1) and is fixed to the outer surface of the track (1) by the locking component (2); The locking assembly (2) comprises a fixing plate (21) connected to the track (1), a docking block (22) being provided at the end of the fixing plate (21), a baffle (23) being provided at one side of the fixing plate (21), a driving member (24) being provided at one side of the baffle (23), an output end of the driving member (24) penetrating and extending to the other end of the baffle (23), a rotating drum (25) being provided at the output end of the driving member (24), and a first arc-shaped groove (251) and a second arc-shaped groove (252) being provided at one side of an outer surface of the rotating drum (25); A positioning shaft (26) is provided at the end of the baffle (23), a swing plate (261) is provided at the end of the positioning shaft (26), and the outer surface of the end of the swing plate (261) is slidably connected to the inner wall of the second arc-shaped groove (252); An adjustment plate (27) is provided at one end of the positioning shaft (26) away from the swing plate (261), a support plate (271) is provided at one end of the adjustment plate (27), a positioning rod (272) is provided at the end of the support plate (271), a roller (273) is provided at the end of the positioning rod (272), and an outer surface of the roller (273) is in contact with an outer surface of the track (1); A movable block (28) is slidably mounted on one end of the adjustment plate (27) away from the support plate (271); a guide groove (281) is provided at the end of the movable block (28); an inner wall of the guide groove (281) is slidably connected to an outer surface of the end of the adjustment plate (27); a moving rod (282) is provided at the end of the movable block (28); and a pressing block (283) is provided at the end of the moving rod (282); A limit plate (29) is slidably mounted on the outer surface of the moving rod (282); a slider (291) is provided at the middle position of the end of the limit plate (29); the outer surface of the slider (291) is slidably connected to the inner wall of the first arc-shaped groove (251); and a movable rod (292) is provided on the outer surface of the limit plate (29); the two ends of the movable rod (292) are connected to the inner wall of the baffle (23); A positioning component (3) is assembled on the upper end of the docking block (22), and the measuring device is fixed by the positioning component (3).

2. A length measuring device for rail detection according to claim 1, characterized in that: An extrusion block (211) is provided on one side of the fixing plate (21), and an end of the extrusion block (211) is in contact with the outer surface of the track (1).

3. A length measuring device for rail detection according to claim 1, characterized in that: A protrusion (274) is provided at the end of the roller (273), and a push plate (284) is provided at the end of the pressing block (283), and the outer surface of the push plate (284) is in contact with the outer surface of the protrusion (274).

4. A length measuring device for rail detection according to claim 1, characterized in that: The positioning assembly (3) comprises a clamping plate (31) connected to the docking block (22), a support column (33) being provided at the end of the clamping plate (31), and a bottom plate (34) being provided at the end of the support column (33).

5. A length measuring device for rail inspection according to claim 4, characterized in that: A telescopic member (32) is provided at the middle position of the upper end of the clamping plate (31), and the output end of the telescopic member (32) penetrates and extends to the other end of the bottom plate (34).

6. A length measuring device for rail inspection according to claim 5, characterized in that: A fixing cylinder (35) is provided at the upper end of the bottom plate (34), a conical block (36) is slidably mounted on the inner wall of the fixing cylinder (35), and the lower end of the conical block (36) is connected to the output end of the telescopic member (32).

7. A length measuring device for rail inspection according to claim 6, characterized in that: The outer surface of the fixed cylinder (35) is evenly provided with a plurality of groups of power grooves (354), the inner wall of the power groove (354) is slidably mounted with a power rod (37), and the end of the power rod (37) is slidably connected to the outer surface of the conical block (36).

8. A length measuring device for rail inspection according to claim 7, characterized in that: A clamping block (38) corresponding to the power groove (354) is rotatably mounted on the outer surface of the fixing cylinder (35).

9. A length measuring device for rail inspection according to claim 8, characterized in that: A limiting groove (351) is provided at the upper end of the outer surface of the fixing cylinder (35), and an elastic member (352) is provided on the inner wall of the limiting groove (351).

10. A length measuring device for rail inspection according to claim 9, characterized in that: At the same time, an extension rod (353) is slidably mounted on the inner wall of the limiting groove (351), and the end of the extension rod (353) is connected to the end of the elastic member (352).

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