A new portable high-precision measuring instrument for the skew of a railway point rail

Abstract

The utility model discloses a kind of novel portable high-precision point rail cross measurement instruments of railway, belong to rail measurement technical field, including the mainframe box of being convenient for carrying, the side surface of mainframe box is equipped with parallel camera and angle laser head for measurement;The lower portion of mainframe box is provided with the magnetic attraction fixing seat compatible with the shape of railway rail, the side surface of magnetic attraction fixing seat is equipped with the slot of being compatible with railway rail, the inner wall of slot is inlaidly installed with multiple magnetic attraction blocks, the side surface of magnetic attraction fixing seat is equipped with article slot, the inner chamber of article slot is provided with angle adjusting connecting piece, the side surface of angle adjusting connecting piece is inlaidly installed with E type card, the bottom end of mainframe box is equipped with sliding slot, sliding slot is slidably equipped with front and back movement adjusting slide rail, the bottom end of magnetic attraction fixing seat is equipped with threaded passageway.The novel portable high-precision point rail cross measurement instrument of railway, with easy operation, measurement speed is fast, with wide range of application etc. Characteristics, can greatly improve the efficiency and quality of railway measurement, maintenance work.

Description

Technical Field

[0001] This utility model belongs to the field of railway track measurement technology, and in particular to a new type of portable high-precision switch rail phase misalignment measuring instrument for railways. Background Technology

[0002] With the development of railway transportation, train speeds and carrying capacities are constantly increasing, placing higher demands on the precise measurement and maintenance of track equipment. Turnouts, as key components of track equipment, can flexibly adjust the direction of train travel, ensuring the interconnectivity of the railway network. Switch rails, as the main part of turnout switching, guide locomotives and rolling stock safely in and out of the turnout; their positional accuracy and stability directly affect the safety and smoothness of train operation. Switch rail misalignment is a key parameter for assessing the accuracy of switch rail and turnout position, reflecting the deviation or misalignment of the relative positions of the two switch rails during installation or use.

[0003] To accurately measure the misalignment of switch rails, railway engineers employ various methods. These include using a distance gauge to mark lines at the tips of both straight and curved switch rails and measuring the distance between the two lines, or fixing equal-length steel bars on both sides of the track as reference lines and using the isosceles triangle method for measurement. However, traditional switch rail measurement methods are inaccurate and inefficient, and some methods also pose certain safety hazards, making them unsuitable for the needs of modern railway development. Utility Model Content

[0004] The purpose of this invention is to provide a new type of portable high-precision switch rail phase misalignment measuring instrument for railways, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a new type of portable high-precision switch rail phase misalignment measuring instrument for railways, including a portable main unit, on the side of which a parallel camera and an angle laser head for measurement are mounted; The bottom of the main unit is equipped with a magnetic mounting base that conforms to the shape of a railway track. The side of the magnetic mounting base has a notch that conforms to the shape of a railway track. Multiple magnetic blocks are embedded in the inner wall of the notch. The side of the magnetic mounting base has a storage slot. The inner cavity of the storage slot is equipped with an angle adjustment connector. An E-type card is embedded in the side of the angle adjustment connector. The bottom of the main unit has a sliding groove. A forward and backward adjustment slide rail slides in the sliding groove. The bottom of the magnetic mounting base has a threaded channel. An angle adjustment screw is threadedly connected to the threaded channel. The angle adjustment screw is rotatably connected to the angle adjustment connector through a bearing. The top of the front and rear moving adjustment slide rail is equipped with a mounting base. The mounting base is rotatably connected to the angle adjustment connector via a connecting shaft. Threaded holes are provided on both sides of the main unit box. The two threaded holes are respectively threaded with a front and rear adjustment screw and a front and rear adjustment fixing screw for adjusting the mounting base.

[0006] As a preferred embodiment, the side of the main unit is rotatably connected to a lens protective cover for shielding the parallel camera and the angle laser head via a damping pivot. An auxiliary frame is fixedly connected to the inner wall of the main unit. The auxiliary frame is detachably connected to a top cover via cover plate fixing screws. A cover plate screw waterproof ring is glued to the outer periphery of the cover plate fixing screws.

[0007] As a preferred embodiment, the internal cavity of the main unit chassis houses the battery, circuit board, and heat sink bracket, with a cooling fan mounted on the heat sink bracket via fan mounting screws.

[0008] As a preferred embodiment, the heat dissipation bracket is equipped with a heat dissipation bracket pressure plate by means of pressure plate fixing bolts, and the heat dissipation bracket is also connected to fasteners by 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 fixture, and a film is also installed on the side of the fixture.

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

[0011] As a preferred embodiment, the side of the main unit chassis has an embedded power switch and a charging port that connect to the circuit board and battery.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This new portable high-precision switch rail phase misalignment measuring instrument for railways uses high-precision laser projection to complete non-contact measurements, eliminating the personal safety hazards in traditional measurement operations. This new portable high-precision switch rail phase misalignment measuring instrument for railways, by adopting a fixed adjustable base, enables single-person operation and completes a set of measurements within 10 seconds, improving measurement efficiency by more than 5 times compared to traditional manual methods.

[0013] This new portable high-precision switch rail misalignment measuring instrument for railways can accurately capture minute deformations and displacements of the switch rails, ensuring the accuracy and reliability of the measurement results. This new portable high-precision switch rail phase misalignment measuring instrument for railways features easy operation, fast measurement speed, and wide applicability, which can greatly improve the efficiency and quality of railway measurement and maintenance work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram showing the disassembled state of this utility model; Figure 4 This is a left-side view of the present invention; Figure 5 This is a schematic diagram of the structure of the heat dissipation bracket of this utility model; Figure 6 This is a structural schematic diagram of the heat dissipation bracket of this utility model from another perspective; Figure 7 For the present utility model Figure 1 A schematic diagram of the structure after removing the main unit chassis; Figure 8 For the present utility model Figure 2 A schematic diagram of the structure after removing the main unit chassis; Figure 9 This is a schematic diagram illustrating the operation of the prior art of this utility model; Figure 10 This is a schematic diagram illustrating the actual operation of this utility model.

[0015] Explanation of reference numerals in the attached figures: In the diagram: 1. Main unit chassis; 2. Top cover; 3. Front and rear sliding adjustment rail; 4. Parallel camera; 5. Angle laser head; 6. Lens protective cover; 7. Magnetic mounting base; 8. Magnetic block; 9. Connecting hinge; 10. Angle adjustment connector; 11. Front and rear adjustment screw; 12. Angle adjustment connector; 13. Angle adjustment screw; 14. Power switch; 15. Charging port; 16. Front and rear adjustment fixing screw; 17. Battery; 18. Circuit board; 19. Heat sink bracket; 20. Cooling fan; 21. Fan fixing screw; 22. Heat sink bracket pressure plate; 23. Cover plate fixing screw. Detailed Implementation

[0016] In the following description, numerous specific details are set forth in order 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 can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0017] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0018] Please see Figures 1 to 10 A new type of portable high-precision railway switch rail phase misalignment measuring instrument, in this embodiment, includes a portable main unit 1, on the side of which a parallel camera 4 and an angle laser head 5 for measurement are mounted; The main unit 1 has a magnetic mounting base 7 adapted to the shape of railway rails at the bottom. The magnetic mounting base 7 has a notch on its side adapted to the railway rails. Multiple magnetic blocks 8 are embedded in the inner wall of the notch. The magnetic mounting base 7 has a storage slot on its side. An angle adjustment connector 10 is installed in the inner cavity of the storage slot. An E-type card is embedded in the side of the angle adjustment connector 10. The bottom of the main unit 1 has a sliding groove. A forward and backward moving adjustment slide rail 3 slides in the sliding groove. The bottom of the magnetic mounting base 7 has a threaded channel. 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. By selecting a suitable built-in scale scale and adjusting the distance between the laser source, the built-in scale scale, and the wide-angle lens, the laser scale can be restored 1:1 at the working edge of the opposite rail. The top of the front and rear moving adjustment slide rail 3 is equipped with a mounting base. The mounting base is rotatably connected to the angle adjustment connector 10 via the connecting shaft 9. Threaded holes are provided on both sides of the main unit box 1. The two threaded holes are respectively threaded with the front and rear adjustment screw 11 and the front and rear adjustment fixing screw 16 for adjusting the mounting base.

[0019] The side of the main unit 1 is rotatably connected to a lens cover 6 for shielding the parallel camera 4 and the angle laser head 5 via a damping pivot. An auxiliary frame is fixedly connected to the inner wall of the main unit 1. The auxiliary frame is detachably connected to the top cover 2 via cover plate fixing screws 23. A cover plate screw waterproof ring is glued to the outer periphery of the cover plate fixing screws 23.

[0020] The internal cavity of the main unit 1 houses the battery 17, circuit board 18, and heat dissipation bracket 19. The heat dissipation bracket 19 is fitted with a heat dissipation fan 20 via fan mounting screws 21. The heat dissipation bracket 19 is fitted with a heat dissipation bracket 19 pressure plate via pressure plate mounting bolts. The heat dissipation bracket 19 is also connected to a fastener via bolts. The inner wall of the fastener is fitted with a parallel laser head corresponding to the position of the parallel camera 4. A film is also fitted on the side of the fastener. A waterproof ring is fitted around the outer periphery of the parallel camera 4.

[0021] The side of the main unit 1 has an embedded switch 14 and a charging port 15 that are connected to the circuit board 18 and the battery 17.

[0022] To achieve a 1:1 scale when the laser scale is projected onto the opposing rail, the distances between the laser source, the built-in scale plate, and the wide-angle lens need to be designed, while also considering the impact of the engraving accuracy of the built-in scale plate. The research team used a standard track gauge of 1435mm as a basis and performed calculations based on the lens imaging formula.

[0023] Geometric formula for convex lens imaging:

[0024] in: K represents the image magnification.

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

[0026] AB represents the height of the object, i.e., the actual height of the object.

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

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

[0029] Finally, the built-in scale was made according to a scale of 0.008:1, and the distance between the three components, namely the laser source, the built-in scale plate, and the wide-angle lens, was designed so that the scale is 1:1 when the laser scale is projected onto the opposing rail, thus realizing the automatic measurement of the phase misalignment of the switch rails.

[0030] This project is the first portable, high-precision laser measuring instrument for switch tip misalignment in China. By integrating technologies such as laser projection, embedded development, and stepped focusing, it achieves non-contact measurement of switch tip misalignment with an accuracy of ±0.2mm. It solves the three major difficulties of traditional manual measurement methods: low accuracy, poor efficiency, and potential personal 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 support: Adjustable base adaptable to 1435-1450mm turnouts; 3. Non-contact measurement: Eliminates human error and operational risks; 4. Embedded system: Low power consumption design supports continuous operation for ≥4 hours.

[0032] Working principle This new portable high-precision railway track misalignment measuring instrument, with the lens protective cover 6 opened, uses a parallel camera 4 and an angle laser head 5 to measure railway tracks. Before and during use, the front and rear adjustment screws 11, angle adjustment screws 13, and front and rear adjustment fixing screws 16 can be adjusted.

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

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

Claims

1. A novel portable high-precision switch rail phase misalignment measuring instrument for railways, comprising a portable main unit (1), characterized in that: The side of the main unit (1) is equipped with a parallel camera (4) and an angle laser head (5) for measurement. The main unit (1) is provided with a magnetic fixing seat (7) adapted to the shape of the railway rail. The magnetic fixing seat (7) has a notch adapted to the railway rail on its side. Multiple magnetic blocks (8) are embedded in the inner wall of the notch. The magnetic fixing seat (7) has a storage slot on its side. 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). The bottom of the main unit (1) has a sliding groove. A front and back moving adjustment slide rail (3) slides in the sliding groove. The bottom of the magnetic fixing seat (7) has a threaded channel. 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. The top of the front and rear moving adjustment slide rail (3) is equipped with a mounting base. The mounting base is rotatably connected to the angle adjustment connector (10) through the connecting shaft (9). Threaded holes are provided on both sides of the main unit box (1). The two threaded holes are respectively threaded with a front and rear adjustment screw (11) and a front and rear adjustment fixing screw (16) for adjusting the mounting base.

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

3. The novel portable high-precision switch rail phase misalignment measuring instrument for railways according to claim 1, characterized in that: The inner cavity of the main unit (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) by a fan fixing screw (21).

4. A novel portable high-precision switch rail phase misalignment measuring instrument for railways according to claim 3, characterized in that: The heat dissipation bracket (19) is mounted with a heat dissipation bracket (19) pressure plate by means of pressure plate fixing bolts, and the heat dissipation bracket (19) is also connected to a fixing member by bolts.

5. A novel portable high-precision switch rail phase misalignment measuring instrument for railways according to claim 4, characterized in that: The inner wall of the fixing component is equipped with a parallel laser head corresponding to the position of the parallel camera (4), and a film is also installed on the side of the fixing component.

6. A novel portable high-precision switch rail phase misalignment measuring instrument for railways according to claim 1, characterized in that: A waterproof ring is installed around the periphery of the parallel camera (4).

7. A novel portable high-precision switch rail phase misalignment measuring instrument for railways according to claim 1, characterized in that: The side of the main unit (1) is fitted with a switch (14) and a charging port (15) that are connected to the circuit board (18) and the battery (17).

Images