Novel portable high-precision railway switch rail dislocation measuring instrument

Abstract

The invention discloses a novel portable high-precision railway switch rail dislocation measuring instrument, which belongs to the technical field of rail measurement, and comprises a portable mainframe box, and the side surface of the mainframe box is provided with a parallel camera and an angle laser head for measurement; a magnetic attraction fixing seat matched with a railway track in shape is arranged below the mainframe box, a notch matched with the railway track is formed in the side face of the magnetic attraction fixing seat, a plurality of magnetic attraction blocks are installed in the inner wall of the notch in an embedded mode, a storage groove is formed in the side face of the magnetic attraction fixing seat, and an angle adjusting connecting piece is arranged in an inner cavity of the storage groove. An E-shaped clamp is embedded in the side face of the angle adjusting connecting piece, a sliding groove is formed in the bottom end of the mainframe box, a front-back movement adjusting sliding rail is arranged in the sliding groove in a sliding mode, and a threaded channel is formed in the bottom end of the magnetic attraction fixing base. The novel portable high-precision railway switch rail dislocation measuring instrument has the advantages of being easy and convenient to operate, high in measuring speed, wide in application range and the like, and the efficiency and quality of railway measurement and maintenance work can be greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rail measurement, in particular to a novel portable high-precision railway point rail misalignment measuring instrument. Background Art

[0002] With the development of railway transportation, train speeds and carrying capacity continue to increase, placing higher demands on the precise measurement and maintenance of track equipment. As a key component of track equipment, turnouts enable flexible adjustment of train travel directions, ensuring the interconnection of the railway network. The switch, as a key component of the switch, precisely guides rolling stock in and out of the switch with its precise movement. The accuracy and stability of its position are directly related to the safety and smoothness of train operation. The offset of the switch rail is a key parameter for assessing the accuracy of the switch and point position. It reflects the deviation or misalignment of the switch rails relative to each other during installation or use.

[0003] To accurately measure the offset between the straight and curved rails, railway maintenance personnel employ various methods. These include using a distance ruler to mark the tips of the straight and curved rails and measuring the distance between the two lines. Alternatively, they employ the isosceles triangle method, fixing steel bars of equal length on either side of the track as a reference line. However, these traditional methods of measuring rails suffer from low accuracy and efficiency, and some methods pose safety risks, making them inadequate for meeting the demands of modern railway development. Summary of the Invention

[0004] The purpose of the present invention is to provide a new type of portable high-precision railway point rail phase misalignment measuring instrument to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a new portable high-precision railway point rail phase misalignment measuring instrument, comprising a main box that is easy to carry, with a parallel camera and an angle laser head for measurement installed on the side of the main box; A magnetic fixing seat adapted to the shape of the railway track is provided at the bottom of the main chassis, a groove adapted to the railway track is provided on the side of the magnetic fixing seat, a plurality of magnetic blocks are embedded in the inner wall of the groove, a storage slot is provided on the side of the magnetic fixing seat, an angle adjustment connector is provided in the inner cavity of the storage slot, an E-type card is embedded in the side of the angle adjustment connector, a slide slot is provided at the bottom end of the main chassis, a slide rail for adjusting movement slides in the slide slot, a threaded channel is provided at the bottom end of the magnetic fixing seat, an angle adjustment screw is threadedly connected to the threaded channel, and the angle adjustment screw is rotatably connected to the angle adjustment connector through a bearing; A mounting base is installed at the top of the forward and backward movable adjustment slide rail, and the mounting base is rotatably connected to the angle adjustment connector through a connecting shaft. Threaded holes are opened on both sides of the main chassis, and the two threaded holes are respectively threaded with forward and backward adjustment screws and forward and backward adjustment fixing screws for adjusting the mounting base.

[0006] As a preferred embodiment, the side of the main box is rotatably connected to a lens protection cover for shielding the parallel camera and the angle laser head through a damping shaft, the inner wall of the main box is fixedly connected to an auxiliary frame, the auxiliary frame is detachably connected to the top cover through the cover fixing screws, and the outer periphery of the cover fixing screws is bonded with a cover screw waterproof ring.

[0007] As a preferred embodiment, the inner cavity of the main chassis is equipped with a battery, a circuit board and a heat dissipation bracket, and the heat dissipation bracket is equipped with a heat dissipation fan through fan fixing screws.

[0008] As a preferred embodiment, the heat dissipation bracket is installed with a heat dissipation bracket pressing plate through a pressing plate fixing bolt, and the heat dissipation bracket is further connected with a fixing piece through bolts.

[0009] As a preferred embodiment, a parallel laser head corresponding to the position of the parallel camera is installed on the inner wall of the fixing member, and a film is also installed on the side of the fixing member.

[0010] As a preferred embodiment, a waterproof ring is installed on the periphery of the parallel camera.

[0011] As a preferred embodiment, a switch and a charging port connected to the circuit board and the battery are embedded in the side of the main chassis.

[0012] Compared with the prior art, the technical effects and advantages of the present invention are: The new portable high-precision railway point rail misalignment measuring instrument uses high-precision laser projection to complete non-contact measurement, eliminating the personal safety hazards in traditional measurement operations. This new portable high-precision railway point rail misalignment measuring instrument uses a fixed adjustable base and can be operated by one person. It can complete a set of measurements within 10 seconds, and the measurement efficiency is more than 5 times higher than that of traditional manual methods.

[0013] The new portable high-precision rail point misalignment measuring instrument can accurately capture the slight deformation and displacement of the rail point, ensuring the accuracy and reliability of the measurement results. This new portable high-precision railway point rail misalignment measuring instrument has the characteristics of easy operation, fast measurement speed and wide application range. It can greatly improve the efficiency and quality of railway measurement and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the decomposition state of the present invention; Figure 4 It is a left side view of the present invention; Figure 5 It is a structural schematic diagram of the heat dissipation bracket of the present invention; Figure 6 This is a structural schematic diagram of the heat dissipation bracket of the present invention from another perspective; Figure 7 For the present invention Figure 1 Schematic diagram of the structure after removing the main chassis; Figure 8 For the present invention Figure 2 Schematic diagram of the structure after removing the main chassis; Figure 9 It is a schematic diagram of the operation in the prior art of the present invention; Figure 10 This is a schematic diagram of the operation of the present invention during actual operation.

[0015] Description of reference numerals: In the figure: 1. Main chassis; 2. Top cover; 3. Forward and backward movement adjustment slide rail; 4. Parallel camera; 5. Angle laser head; 6. Lens protection cover; 7. Magnetic fixing seat; 8. Magnetic block; 9. Connecting shaft; 10. Angle adjustment connector; 11. Forward and backward adjustment screws; 12. Angle adjustment connector; 13. Angle adjustment screws; 14. Power switch; 15. Charging port; 16. Forward and backward adjustment fixing screws; 17. Battery; 18. Circuit board; 19. Heat dissipation bracket; 20. Cooling fan; 21. Fan fixing screws; 22. Heat dissipation bracket pressure plate; 23. Cover fixing screws. DETAILED DESCRIPTION

[0016] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0017] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0018] See also Figures 1 to 10 A new type of portable high-precision railway point rail phase misalignment measuring instrument, this embodiment includes a main box 1 that is easy to carry, and a parallel camera 4 and an angle laser head 5 for measurement are installed on the side of the main box 1; A magnetic fixing seat 7 adapted to the shape of the railway rail is provided at the bottom of the main box 1, and a groove adapted to the railway rail is provided on the side of the magnetic fixing seat 7, and a plurality of magnetic blocks 8 are embedded in the inner wall of the groove. A storage groove is provided on the side of the magnetic fixing seat 7, and an angle adjustment connector 10 is provided in the inner cavity of the storage groove. An E-type card is embedded in the side of the angle adjustment connector 10. A slide groove is provided at the bottom end of the main box 1, and a forward and backward adjustment slide rail 3 slides in the slide groove. A threaded channel is provided at the bottom end of the magnetic fixing seat 7, and an angle adjustment screw 13 is threadedly connected to the threaded channel. The angle adjustment screw 13 is rotatably connected to the angle adjustment connector 10 through a bearing. Select a suitable built-in scale and adjust the distance between the laser source, the built-in scale and the wide-angle lens to achieve 1:1 restoration of the laser scale at the working edge of the opposite rail. A mounting seat is installed at the top end of the forward and backward movable adjustment slide rail 3, and the mounting seat is rotatably connected to the angle adjustment connector 10 through a connecting shaft 9. Threaded holes are provided on both sides of the main chassis 1, and the two threaded holes are respectively threadedly connected with a forward and backward adjustment screw 11 and a forward and backward adjustment fixing screw 16 for adjusting the mounting seat.

[0019] The side of the main box 1 is rotatably connected to a lens protection cover 6 for shielding the parallel camera 4 and the angle laser head 5 through a damping shaft. The inner wall of the main box 1 is fixedly connected to an auxiliary frame, and the auxiliary frame is detachably connected to the top cover 2 through a cover fixing screw 23. The outer periphery of the cover fixing screw 23 is bonded with a cover screw waterproof ring.

[0020] The inner cavity of the main chassis 1 is installed with a battery 17, a circuit board 18 and a heat dissipation bracket 19. The heat dissipation bracket 19 is installed with a heat dissipation fan 20 through a fan fixing screw 21. The heat dissipation bracket 19 is installed with a heat dissipation bracket 19 pressure plate through a pressure plate fixing bolt. The heat dissipation bracket 19 is also connected to a fixing part through bolts. A parallel laser head corresponding to the position of the parallel camera 4 is installed on the inner wall of the fixing part. A film is also installed on the side of the fixing part, and a waterproof ring is installed on the outer periphery of the parallel camera 4.

[0021] The side of the main chassis 1 is embedded with a switch 14 and a charging port 15 connected to the circuit board 18 and the battery 17.

[0022] To achieve a 1:1 scale when projecting the laser scale onto the opposing rail, the distance between the laser source, the built-in scale, and the wide-angle lens must be carefully designed. The impact of the built-in scale's engraving accuracy must also be considered. The research team used the standard track gauge of 1435mm as a basis for calculations using lens imaging formulas.

[0023] Convex lens imaging geometry formula:

[0024] in: K is the image magnification.

[0025] A′B′ is the image height, that is, the height of the object on the image plane after imaging.

[0026] AB is the object height, that is, the height of the actual object.

[0027] v is the image distance, that is, the distance from the image plane to the convex lens after imaging.

[0028] u is the object distance, that is, the distance from the actual object to the convex lens.

[0029] Finally, a built-in scale was made according to the scale of 0.008:1, and the distances between the laser source, the built-in scale, and the wide-angle lens were designed so that the scale was 1:1 when the laser scale was projected onto the opposite rail, realizing automatic measurement of the staggered amount of the point rails.

[0030] This project is China's first portable, high-precision laser measuring instrument for switch point misalignment. By integrating laser projection, embedded development, and step-focusing technologies, it enables non-contact measurement of switch point misalignment with an accuracy of ±0.2mm. This overcomes the three major difficulties of traditional manual measurement methods: low precision, poor efficiency, and potential safety hazards. Compared with traditional measurement methods, it improves accuracy by more than 10 times and efficiency by more than 5 times.

[0031] 1. Laser vision calibration technology: 520nm green laser projects 0.1mm resolution scale lines, improving accuracy by more than 10 times; 2. Modular magnetic bracket: adjustable base adapts to 1435-1450mm turnouts; 3. Non-contact measurement: eliminate human errors and operational risks; 4. Embedded system: Low power consumption design supports continuous operation ≥ 4 hours.

[0032] How it works The new portable high-precision railway point rail phase misalignment measuring instrument opens the lens protection cover 6 and uses the parallel camera 4 and the angle laser head 5 to measure the railway track. Before and during use, the front and rear adjustment screws 11, the angle adjustment screws 13 and the front and rear adjustment fixing screws 16 can be adjusted to achieve adjustment.

[0033] It should be noted that, in this document, relational terms such as one and two are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of portable high-precision railway point rail phase misalignment measuring instrument, comprising a main box (1) that is easy to carry, characterized in that: A parallel camera (4) and an angle laser head (5) for measurement are installed on the side of the main box (1); A magnetic fixing seat (7) adapted to the shape of a railway track is provided below the main box (1), a groove adapted to the shape of a railway track is provided on the side of the magnetic fixing seat (7), a plurality of magnetic blocks (8) are embedded in the inner wall of the groove, a storage slot is provided on the side of the magnetic fixing seat (7), an angle adjustment connector (10) is provided in the inner cavity of the storage slot, an E-type card is embedded in the side of the angle adjustment connector (10), a slide slot is provided at the bottom end of the main box (1), a forward and backward adjustment slide rail (3) slides in the slide slot, a threaded channel is provided at the bottom end of the magnetic fixing seat (7), an angle adjustment screw (13) is threadedly connected to the threaded channel, and the angle adjustment screw (13) is rotatably connected to the angle adjustment connector (10) through a bearing; A mounting seat is installed at the top end of the forward and backward movable adjustment slide rail (3), and the mounting seat is rotatably connected to the angle adjustment connector (10) via a connecting shaft (9). Threaded holes are provided on both sides of the main chassis (1), and the two threaded holes are respectively threadedly connected with a forward and backward adjustment screw (11) and a forward and backward adjustment fixing screw (16) for adjusting the mounting seat.

2. The novel portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: The side of the main box (1) is rotatably connected to a lens protection cover (6) for shielding the parallel camera (4) and the angle laser head (5) via a damping shaft, and the inner wall of the main box (1) is fixedly connected to an auxiliary frame, which is detachably connected to the top cover (2) via a cover fixing screw (23), and a cover screw waterproof ring is bonded to the outer periphery of the cover fixing screw (23).

3. The novel portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: The inner cavity of the main chassis (1) is equipped with a battery (17), a circuit board (18) and a heat dissipation bracket (19), and the heat dissipation bracket (19) is equipped with a heat dissipation fan (20) via a fan fixing screw (21).

4. The novel portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: The heat dissipation bracket (19) is mounted with a heat dissipation bracket (19) pressing plate via a pressing plate fixing bolt, and the heat dissipation bracket (19) is further connected with a fixing member via a bolt.

5. The new portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: A parallel laser head corresponding to the position of the parallel camera (4) is installed on the inner wall of the fixing member, and a film is also installed on the side of the fixing member.

6. The new portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: A waterproof ring is installed on the outer periphery of the parallel camera (4).

7. The new portable high-precision railway point rail misalignment measuring instrument according to claim 1, characterized in that: An on / off switch (14) and a charging port (15) connected to the circuit board (18) and the battery (17) are embedded in the side of the main box (1).

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