Railway track inspection tester verification platform grating track gauge display device

Abstract

The utility model discloses a railway track inspection tester verification table grating gauge display device which comprises two linear guide rails, a movable long beam is assembled at the upper end of a movable beam support, the lower end of the movable beam support is connected with a grating ruler fixing seat through a screw, the lower end of the inner side of the grating ruler fixing seat is connected with a grating ruler through a screw, and the grating ruler fixing seat is connected with a movable long beam through a screw. The grating ruler is composed of a grating strip, a reading head, a signal processor and the like, the working principle of the grating ruler is based on optical interference, when light irradiates the grating strip, a series of bright and dark light spots are formed and converted into digital signals through the reading head, and the grating ruler has the advantages of being large in detection range, high in detection precision and high in response speed. The gauge reproduction precision of the verification table of the railway track inspection tester is ensured, and when the gauge reproduction value of the verification table of the railway track inspection tester has an error, only the gauge reproduction zero value is calibrated for the verification table by using the standard gauge measuring rod, and the high-precision gauge reproduction value is displayed.

Description

Technical Field

[0001] This utility model relates to the field of railway track inspection technology, specifically to a grating gauge display device for a railway track inspection instrument calibration table. Background Technology

[0002] The railway track gauge reproduction method uses the direct measurement principle. With the calibration platform's long beam horizontal, the track gauge is placed on the two long beams of the calibration platform. Moving the movable long beam using the gauge adjustment device causes the calibration platform's gauge display to show a specific gauge value. Moving the movable long beam to a certain position causes both the calibration platform's gauge display and the track gauge display to show the gauge value. The difference between the gauge display value on the calibration platform and the gauge display value on the track gauge itself at different positions is measured, thus determining the gauge error value.

[0003] Currently, most railway track inspection instrument calibration tables use mechanical scales to display track gauge reproduction values. This type of track gauge display device has disadvantages such as slow reading, large errors, and difficulty in calibration, which greatly reduces the work efficiency of metrology and calibration personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a grating gauge display device for a railway track inspection instrument calibration table to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grating gauge display device for a railway track inspection instrument calibration table, comprising two linear guide rails, the two linear guide rails being symmetrically arranged, and the upper ends of the two linear guide rails being equipped with movable beam supports, the upper ends of the movable beam supports being equipped with movable long beams, the lower ends of the movable beam supports being connected to grating ruler fixing seats by screws, and the lower inner side of the grating ruler fixing seats being connected to grating rulers by screws.

[0006] Preferably, it also includes an auxiliary fixing structure, which is mounted on the side wall of the grating ruler and connected to the linear guide rail.

[0007] Preferably, the auxiliary fixing structure includes an L-shaped plate, which is connected to the linear guide rail by fixing bolts. A connecting plate is fixedly assembled at the lower end of the grating ruler. Two sliding grooves are symmetrically opened on the side wall of the L-shaped plate. The inner walls of the two sliding grooves are equipped with butt bolts, and the other side of the two butt bolts passes through the connecting plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The movable long beam of the calibration table is in a horizontal state, and the track inspection instrument is placed on the two movable long beams of the calibration table. By moving the movable long beams through the track gauge adjustment device, the track gauge display device on the calibration table will display a specific track gauge value. When the movable long beam is moved to a certain position, the track gauge display device on the calibration table displays the track gauge value, and the track inspection instrument displays the track gauge value. The difference between the track gauge display value on the calibration table and the track gauge display value on the track inspection instrument at different positions is measured, thus determining the track gauge error value. The movable beam support ensures the stability of the movable long beam. The railway track inspection instrument calibration table uses an advanced grating ruler, which is fixed by a grating ruler fixing seat. The instrument uses screw assembly for easy adjustment of the grating ruler's position. Combined with a digital display, it accurately displays the track gauge reproduction value. The grating ruler consists of grating strips, a reading head, and a signal processor. Its working principle is based on optical interference. When light shines on the grating strips, it forms a series of alternating bright and dark spots, which are converted into digital signals by the reading head. It features a large detection range, high detection accuracy, and fast response speed, ensuring the track gauge reproduction accuracy of the railway track inspection instrument calibration platform. When errors occur in the track gauge reproduction value of the railway track inspection instrument calibration platform, only a standard track gauge measuring rod needs to be used to calibrate the zero-point value of the track gauge reproduction, displaying a high-precision track gauge reproduction value. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a side view of the grating ruler.

[0011] In the diagram: 1-Movable long beam, 2-Movable beam support, 3-Raster ruler fixing seat, 4-Raster ruler, 5-Linear guide rail, 6-Auxiliary fixing structure, 61-L-shaped plate, 62-Fixing bolt, 63-Connecting plate, 64-Slide groove, 65-Butt bolt. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-2This utility model provides a grating gauge display device for a railway track inspection instrument calibration table, including two linear guide rails 5, which are symmetrically arranged. The upper ends of the two linear guide rails 5 are equipped with movable beam supports 2, and the upper ends of the movable beam supports 2 are equipped with movable long beams 1. The lower ends of the movable beam supports 2 are connected to grating ruler fixing seats 3 by screws, and the lower inner side of the grating ruler fixing seats 3 is connected to a grating ruler 4 by screws.

[0014] With the movable beam 1 of the calibration platform in a horizontal position, the track inspection instrument is placed on the two movable beams 1 of the calibration platform. The movable beams 1 are moved using the gauge adjustment device. The gauge display device on the calibration platform will display a specific gauge value. At a certain position, both the gauge display device on the calibration platform and the track inspection instrument will display their respective gauge values. The difference between the gauge display values ​​on the calibration platform and the track inspection instrument at different positions will be measured, thus determining the gauge error value. The movable beam support 2 ensures the stability of the movable beam 1. The railway track inspection instrument calibration platform uses an advanced grating ruler 4, which is fixed by the grating ruler fixing seat 3 using screw assembly. The grating ruler 4 is designed for easy adjustment of its position. Combined with a digital display, it accurately displays the track gauge reproduction value. The grating ruler 4 consists of grating strips, a reading head, and a signal processor. Its working principle is based on optical interference. When light shines on the grating strips, it forms a series of alternating bright and dark spots, which are converted into digital signals by the reading head. It features a large detection range, high detection accuracy, and fast response speed, ensuring the track gauge reproduction accuracy of the railway track inspection instrument calibration platform. When errors occur in the track gauge reproduction value of the railway track inspection instrument calibration platform, only a standard track gauge measuring rod needs to be used to calibrate the zero-point value of the track gauge reproduction on the calibration platform, displaying a high-precision track gauge reproduction value.

[0015] It also includes an auxiliary fixing structure 6, which is mounted on the side wall of the grating ruler 4 and is connected to the linear guide rail 5.

[0016] The auxiliary fixing structure 6 includes an L-shaped plate 61, which is connected to the linear guide rail 5 by fixing bolts 62. The lower end of the grating ruler 4 is fixedly equipped with a connecting plate 63. Two sliding grooves 64 are symmetrically opened on the side wall of the L-shaped plate 61. The inner walls of the two sliding grooves 64 are equipped with butt bolts 65, and the other side of the two butt bolts 65 passes through the connecting plate 63.

[0017] By using the connecting plate 63, the connecting bolt 65, and the slide groove 64 together, the longitudinal position of the grating ruler 4 can be adjusted. By using the screws of the grating ruler fixing seat 3 to adjust its tightness, the position of the grating ruler can be adjusted, ensuring that the grating ruler has a wide range of applications. At the same time, the adjustment provides good support. The L-shaped plate 61 ensures stability, and the fixing bolt 62 is used to fix it to the linear guide rail 5.

[0018] 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 grating track gauge display device for a track inspection gauge calibration stand, characterized in that: The utility model relates to a kind of movable long beam fixing device, including two linear guides (5), two described linear guides (5) are symmetrically arranged, and the upper end of two described linear guides (5) is equipped with movable beam support (2), the upper end of the movable beam support (2) is equipped with movable long beam (1), the lower end of the movable beam support (2) is connected with grating ruler fixed seat (3) by screw, the inner side lower end of the grating ruler fixed seat (3) is connected with grating ruler (4) by screw.

2. The grating gauge display device for a railway track inspection instrument calibration table according to claim 1, characterized in that: It also includes auxiliary fixing structure (6), the auxiliary fixing structure (6) is equipped with the side wall of grating ruler (4), and the auxiliary fixing structure (6) is connected with linear guide (5).

3. The grating gauge display device for a railway track inspection instrument calibration table according to claim 2, characterized in that: The auxiliary fixing structure (6) includes L-shaped plate (61), the L-shaped plate (61) is connected on linear guide (5) by fixed bolt (62), the lower end of the grating ruler (4) is fixedly equipped with connecting plate (63), the side wall of the L-shaped plate (61) is symmetrically provided with two sliding grooves (64), the inner wall of two described sliding grooves (64) is equipped with butt bolt (65), the other side of two described butt bolt (65) penetrates connecting plate (63).

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