Special tool for observing displacement of seamless track of ballastless track of railway

Abstract

The utility model discloses a special tool for observing the displacement of a seamless track of a ballastless track of a railway, belongs to the field of railway equipment, and solves the problems of low measurement efficiency, limited precision, complex operation and the like during the displacement measurement of the seamless track of the ballastless track of the railway in the prior art. In the application, the upper part of a base is provided with a measuring part, and the measuring part comprises a vertical part pillar which is vertically arranged at one end of the upper surface of the base; a sliding part is arranged on the vertical part supporting column in a sliding manner and slides in the length extension direction of the vertical part supporting column; the base is provided with a planar bottom end face, and the length extending direction of the vertical supporting columns is perpendicular to the bottom end face of the base. The side surface of the base is a sleeper binding surface; one side of the sliding part is provided with a positioning head attached to a steel rail ruler. The special tool for observing the displacement of the seamless track of the ballastless track of the railway has the advantages of being efficient, accurate, easy and convenient to operate and the like, and displacement observation can be completed during daily track inspection synchronization.

Description

Technical Field

[0001] This utility model relates to a special tool for displacement observation of seamless railway ballastless track, belonging to the field of railway equipment. Background Technology

[0002] Seamless railway tracks are widely used in China. Displacement monitoring of seamless tracks is a mandatory part of periodic inspections of railway equipment, and the accurate acquisition of this data is crucial for the safe operation of railways. How to simply and quickly measure rail creep has always been an important topic for railway technicians. Currently, the commonly used method for measuring seamless tracks in China is the optical instrument method. The optical instrument method uses precision equipment such as theodolites and collimators to measure the longitudinal displacement of the rails. This method requires setting up a pair of observation stakes on both sides of the track, attaching a scale to the rail web, setting up the observation instrument (main unit) on one side where the scale is visible, and setting up a prism (auxiliary unit) on the other side. The displacement of the rail is obtained by observing the readings on the scale. The optical instrument method is easy to carry and the measurement process is relatively convenient, making it the most widely used method for displacement monitoring of seamless railway tracks. However, the measurement requires at least two surveyors to constantly adjust the optical instruments on both sides of the track, and the measurement data needs to be read with the naked eye. Environmental limitations of the optical instruments also seriously affect the observation accuracy. In addition, field measurements have shown that the optical instrument measurement method requires high skill from the operators and a high level of proficiency in using the instruments. Even for experienced operators, it takes 20 to 30 minutes to measure a single cross-section, resulting in low measurement efficiency.

[0003] Existing methods for monitoring displacement on seamless railway tracks mainly employ optical instruments, such as... Figure 1 As shown, the specific steps are as follows:

[0004] 1. Set up observation stakes on both sides of the line.

[0005] 2. Attach a ruler to the web of the rail.

[0006] 3. Install the observation instrument (main unit) on one side of the support and the prism (auxiliary unit) on the other side of the support.

[0007] Fourth, the displacement of the rail is determined by observing the readings on the scale.

[0008] Although this method is portable, it suffers from problems such as low measurement efficiency, limited accuracy, and complex operation.

[0009] Low measurement efficiency: Each measurement takes 20 to 30 minutes and requires at least two operators to work together.

[0010] Accuracy limitations: Optical instruments are greatly affected by the environment, including light, temperature, and humidity. Furthermore, measurement data relies on manual reading from the collimator, which can easily lead to significant errors.

[0011] Complex operation: It requires high skill levels from operators and a high level of proficiency in using the instruments. Utility Model Content

[0012] This utility model provides a special tool for displacement observation of seamless railway ballastless track, which is efficient, accurate and easy to operate, solving the problems of low measurement efficiency, limited accuracy and complicated operation in the existing technology.

[0013] The technical solution adopted by this utility model is a special tool for displacement observation of seamless railway ballastless track, including a base, and a measuring part on the upper part of the base.

[0014] The measuring unit includes a vertical support column, which is vertically disposed at one end of the upper surface of the base; a sliding part is slidably disposed on the vertical support column, and the sliding part slides along the length extension direction of the vertical support column;

[0015] The base has a flat bottom surface, and the length extension direction of the upright support is perpendicular to the bottom surface of the base; the side surface of the base is the sleeper contact surface.

[0016] One side of the sliding part has a positioning head that fits the rail scale.

[0017] The optimized displacement observation tool for seamless railway ballastless track has a C-shaped sliding part and a rectangular flat support for the vertical support, which is inserted into the C-shaped opening of the sliding part.

[0018] The sliding part has an elastic sliding component inside the C-shaped opening.

[0019] The optimized version of the above-mentioned special tool for displacement observation of seamless railway ballastless track has a scale on the side surface of the support pillar, with the scale extending along its length; or all side surfaces of the support pillar are smooth, unscaled planes.

[0020] The optimized displacement observation tool for seamless railway ballastless track has a side surface with a positioning head protruding from the end of the base on the sliding part.

[0021] The optimized displacement observation tool for the above-mentioned ballastless track seamless line of railway includes an elastic sliding plate, which is configured to cooperate with one of the inner side walls of the C-shaped opening of the sliding part.

[0022] Several springs are provided between the elastic sliding plate and the inner wall of the C-shaped opening of the sliding part, with the two ends of the springs fixed to the elastic sliding plate and the inner wall of the C-shaped opening of the sliding part, respectively.

[0023] The optimized displacement observation tool for seamless railway ballastless track features a strip-shaped nylon wear-resistant plate as the elastic sliding plate, with a bend in the middle section.

[0024] The optimized version of the above-mentioned special tool for displacement observation of seamless railway ballastless track features a sliding part and a positioning head that are integrally formed.

[0025] The optimized special tool for displacement observation of seamless railway ballastless track has a reinforcing connecting strip at the lower side of the support pillar, and the reinforcing connecting strip is set in an L-shape with the support pillar.

[0026] The reinforcing connecting strip is integrally formed with the vertical support column; the lower end of the reinforcing connecting strip is fixed to the base, and the length extension direction of the reinforcing connecting strip is parallel to the sleeper contact surface of the base.

[0027] The advantages of this application are:

[0028] High measurement efficiency: The time for a single measurement is greatly reduced, and only one operator is needed to complete the task.

[0029] High precision: The design of the vernier caliper reduces errors from manual data reading and improves measurement accuracy.

[0030] Easy to operate: The tool has a simple structure and does not require high skills from operators, which reduces the difficulty of operation.

[0031] Low cost: The tool is inexpensive to manufacture and requires no additional optical equipment, saving on equipment investment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of existing seamless line displacement observation methods in the prior art;

[0033] Figure 2 This is a schematic diagram of the structure of this application;

[0034] Figure 3 for Figure 2 Enlarged view of point A;

[0035] Figure 4 This is a schematic diagram of the sliding part of this application;

[0036] Figure 5 This is a schematic diagram of the application structure of this application;

[0037] Figure 6 This is a schematic diagram of the application structure of the observation tool of this application when used for seamless track of ballastless railway track.

[0038] Figure 7 for Figure 6 DD sectional view;

[0039] Figure 8 This is a schematic diagram illustrating the application structure of the observation tool described in this application when used for seamless track of ballastless railway tracks. Figure 2 ;

[0040] Figure 9 for Figure 8 Enlarged view of point E. Detailed Implementation

[0041] The technical features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] As shown in the figure, this utility model is a special tool for displacement observation of seamless track ballastless railway, including a base 1, with a measuring part on the upper part of the base 1. In this embodiment, the base plate 1 is made of rectangular stainless steel plate, and the length-to-width ratio of the rectangle of the base plate 1 can be selected to be about 3:1. The side surface of the long rectangular side of the base 1 is the sleeper contact surface, which is used to fit against the side surface of the sleeper during measurement.

[0043] The measuring unit includes a vertical support column 2, which is vertically disposed at one end of the upper surface of the base 1. In this embodiment, the vertical support column 2 can be made of a strip of stainless steel plate. The vertical support column 2 is rectangular in shape. The short side of the rectangle of the vertical support column 2 should be parallel to the long side of the rectangle of the base plate 1, and the long side of the rectangle of the vertical support column 2 should be perpendicular to the upper and lower surfaces of the base plate 1.

[0044] In this embodiment, in order to increase the connection strength between the lower base 1 of the upright support column 2, a reinforcing connecting strip 21 is provided in this application.

[0045] A reinforcing connecting strip 21 is constructed on the lower side of the upright support 2, and the reinforcing connecting strip 21 and the upright support 2 are L-shaped. The reinforcing connecting strip 21 can be made of the same stainless steel as the upright support 2, or it can be made of a different material.

[0046] In this embodiment, the base 1 has a groove in the middle along its length, and the lower part of the upright support 2 and the lower part of the reinforcing connecting strip 21 are embedded in this groove and fixed by two screws. In other embodiments, the lower part of the upright support 2 is fixedly connected to the base 1 by welding.

[0047] When the reinforcing connecting strip 21 and the upright support column 2 are made of the same stainless steel material, the reinforcing connecting strip 21 and the upright support column 2 can be integrally formed.

[0048] In this embodiment, the lower end of the reinforcing connecting strip 21 is fixed to the upper surface of the base 1 by welding, and the length extension direction of the reinforcing connecting strip 21 is parallel to the sleeper contact surface of the base 1.

[0049] In this embodiment, all side surfaces of the upright support 2 are smooth, unmarked planes. In other embodiments, a scale may be provided on the side surface of the upright support 2, extending along its length. The scale is intended to simultaneously measure the thickness of the rail base rubber pad, but it has no practical significance for the technical solution and effect of this application.

[0050] In this application, a sliding part 3 is provided on the upright support 2. The sliding part 3 can slide along the length extension direction of the upright support 2. One side of the sliding part 3 has a positioning head 301 that conforms to the rail scale. The side surface of the sliding part 3 with the positioning head 301 protrudes from the end of the base 1. The sliding part 3 and the positioning head 301 are integrally formed.

[0051] In this embodiment, the sliding part 3 is C-shaped, the upright support 2 is inserted into the C-shaped opening of the sliding part 3, and the outer surface of the upright support 2 slides in contact with the inner surface of the C-shaped opening of the sliding part 3.

[0052] In order to ensure that at least one inner side of the C-shaped opening of the sliding part 3 can fit tightly against the surface of the upright support column 2, an elastic sliding component is provided in the C-shaped opening of the sliding part 3 in this embodiment. The elastic sliding component can reduce the shaking of the sliding part 3 and the upright support column 2 during sliding, and can improve the dimensional accuracy of the positioning head 301 during measurement.

[0053] The lower surface of the positioning head 301 has a mating plane. The mating plane of the positioning head 301 should be parallel to the upper and lower surfaces of the base 1. Furthermore, the projection of the mating plane of the positioning head 301 onto the plane containing the upper surface of the base 1 is outside the upper surface of the base 1.

[0054] The elastic sliding component includes an elastic sliding plate 4, which is a strip-shaped nylon wear-resistant plate with a bend in the middle section. In this embodiment, an obtuse angle bend is selected, with a bend angle greater than 150 degrees being optimal. The bend can be in the form of an arc bend.

[0055] The elastic sliding plate 4 is fitted to one of the inner walls of the C-shaped opening of the sliding part 3, and is located between this inner wall and the thickness side surface of the upright support 2. The bent opening of the elastic sliding plate 4 faces this inner wall.

[0056] Several springs are provided between the elastic sliding plate 4 and the inner wall of the C-shaped opening of the sliding part 3. The two ends of the springs are fixed to the elastic sliding plate 4 and the inner wall of the C-shaped opening of the sliding part 3, respectively. The fixing method can be adhesive fixing or other forms.

[0057] A bolt can be installed on the side wall of the sliding part 3. The bolt passes through the side wall of the sliding part 3 and is threadedly connected to the side wall of the sliding part 3. The end of the bolt can contact the inner wall of the bent opening of the elastic sliding plate 4.

[0058] The proposed technical solution utilizes the coordinated design of the base 1, upright support 2, and sliding part 3 with the positioning head 301. Through the sliding design of the positioning head 301 in the sliding part 3, rapid and accurate displacement measurement is achieved. This application optimizes the overall structure, simplifies the measurement process, and improves measurement efficiency and accuracy.

[0059] During measurement, the bottom surface of base 1 contacts the track slab surface of the ballastless railway and maintains a coplanar relationship, and the side surface of base 1 maintains a co-edge relationship with the side surface of the sleeper of the ballastless railway.

[0060] During measurement, the upright support 2 is close to the side of the rail. Furthermore, the positioning head 301 of the sliding part 3 is close to the top surface of the rail base and presses against a pre-attached scale on the top surface of the rail base for reading.

[0061] The working principle of this application is as follows:

[0062] The principle of displacement observation for seamless track ballastless railway is shown in the figure. Assuming the track slab remains stationary, the longitudinal displacement of the rail is measured periodically. During measurement, the bottom surface of base 1 is coplanar with "surface A," and the side edge of base 1 is collinear with the side edge of the sleeper, "line B." This restricts the special ruler to sliding only along line B on surface A. During sliding, the ruler stops when the upright support 2 contacts the side edge of the rail at "point C," ensuring that the measuring ruler is in the same position for each measurement. At this point, the positioning head 301 of the sliding part 3 is slid downwards and pressed against the scale attached to the rail to take the reading.

[0063] Article 4.3.8 of the "Rules for Maintenance of High-Speed ​​Railway Lines" [Tiegongdian

[2023] No. 106] stipulates that "the longitudinal displacement of seamless track and turnout rails shall be observed no less than once every six months, and generally once each in spring and autumn...". Taking a certain ballastless railway line as an example, it has 40 sets of ballastless turnouts and 360 km of ballastless track. It would normally require 244 man-days of labor for seamless track displacement observation annually. However, by using a special tool for seamless track displacement observation, the testing efficiency is increased by 99%, eliminating the need for separate measurement arrangements. Routine line inspections can be completed simultaneously. At a cost of 500 yuan per man-day, this would save approximately 120,000 yuan annually, demonstrating significant economic benefits.

[0064] Of course, the above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A special tool for observing displacement of a railway ballastless track seamless line, comprising a base (1), the upper part of the base (1) being provided with a measuring part, characterized in that: the measuring part comprises a vertical pillar (2) vertically arranged at one end of the upper surface of the base (1); a sliding part (3) is slidably arranged on the vertical pillar (2) and slides along the length extension direction of the vertical pillar (2); the base (1) has a flat bottom end surface, and the length extension direction of the vertical pillar (2) is perpendicular to the bottom end surface of the base (1); the side surface of the base (1) is a sleeper abutting surface; one side of the sliding part (3) is provided with a positioning head (301) abutting a rail scale.

2. The tool according to claim 1, wherein the sliding part (3) is C-shaped, and the vertical pillar (2) is a rectangular flat plate, which is inserted into the C-shaped opening of the sliding part (3).

3. The tool according to claim 1 or 2, wherein the C-shaped opening of the sliding part (3) is provided with an elastic sliding component.

4. The tool according to any one of claims 1-3, wherein the side surface of the vertical pillar (2) is provided with a scale, which is arranged along the length extension direction of the vertical pillar (2); or all the side surfaces of the vertical pillar (2) are smooth and non-scaled.

2. The railway ballastless track seamless line displacement observation special tool according to claim 1, characterized in that:

5. The tool according to any one of claims 1-4, wherein the side surface of the sliding part (3) provided with the positioning head (301) protrudes from the end of the base (1).

6. The tool according to any one of claims 1-5, wherein the elastic sliding component comprises an elastic sliding plate (4), which is arranged in cooperation with one of the inner side walls of the C-shaped opening of the sliding part (3).

3. The railway ballastless track seamless line displacement observation special tool according to claim 1, characterized in that:

7. The tool according to claim 6, wherein a plurality of springs are arranged between the elastic sliding plate (4) and the inner side walls of the C-shaped opening of the sliding part (3), and the two ends of each spring are fixed to the elastic sliding plate (4) and the inner side walls of the C-shaped opening of the sliding part (3), respectively.

4. The railway ballastless track seamless line displacement observation special tool according to claim 1, characterized in that:

8. The tool according to claim 6 or 7, wherein the elastic sliding plate (4) is a strip-shaped nylon wear-resistant plate, and the middle section of the elastic sliding plate (4) is bent.

5. The railway ballastless track seamless line displacement observation special tool according to claim 2, characterized in that:

9. The tool according to any one of claims 1-8, wherein the sliding part (3) and the positioning head (301) are integrally formed.

10. The tool according to any one of claims 1-9, wherein the lower end side of the vertical pillar (2) is provided with a reinforcing connecting strip (21), which is arranged in an L shape with the vertical pillar (2).

6. The railway ballastless track seamless line displacement observation special tool according to claim 5, characterized in that:

11. The tool according to claim 10, wherein the reinforcing connecting strip (21) is integrally formed with the vertical pillar (2), the lower end of the reinforcing connecting strip (21) is fixed to the base (1), and the length extension direction of the reinforcing connecting strip (21) is parallel to the sleeper abutting surface of the base (1).

7. The railway ballastless track seamless line displacement observation special tool according to claim 1, characterized in that: ​ 8. The railway ballastless track seamless line displacement observation special tool according to claim 1, characterized in that: ​ ​

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