Steel rail simulation device for measurement before ballastless track steel rail laying

Abstract

The utility model discloses a steel rail simulation device used for measurement before ballastless track steel rail laying. The steel rail simulation device comprises a cross bar; the brackets are arranged at the lower parts of the two ends of the cross rod; the supporting legs are arranged at the two ends of the bottom of the bracket and are parallel to the cross rod; the distance from the upper surface of the cross rod to the lower surface of the supporting leg is a design value of the distance from the rail surface of the ballastless track steel rail to a sleeper groove; the distance between the supporting feet is the design value of the distance between the sleeper grooves of the ballastless track steel rails. The device has the advantages of being simple in structure, convenient to carry and easy to use on site. A worker can easily carry the device to any point position needing to be measured, measurement can be started after the device is placed in place, the device is directly taken away after measurement is completed, and complex on-site installation and disassembly steps are not needed. The device has high precision and reliability, and related size parameters of the device are determined according to the design value of the ballastless track steel rail, so that accurate reproduction of related simulation parameters is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed railway construction, in particular to a rail simulation device used for measuring before laying of ballastless track rails. Background Art

[0002] In the current high-speed railway ballastless track construction process, after the ballast bed concrete is poured and before the rails are laid, the construction quality needs to be inspected. Track retesting is one of the key steps. The existing technology usually uses the following method for inspection: a certain length of rails is installed on the target sleepers (usually including multiple sleepers within a certain length range) according to the track laying standards, and then the construction quality is inspected on this basis. Figure 4 As shown in the figure, the entire rail system has a complex structure and involves many components. After the measurement is completed, these rails and related components need to be disassembled, which undoubtedly increases the complexity and time cost of the entire measurement process, and also increases the difficulty and cost of construction. Utility Model Content

[0003] In order to address the deficiencies of the above-mentioned prior art, the utility model aims to provide a portable rail simulation device which has high precision and is configured in accordance with the actual situation of on-site components, so as to simulate the track state after the rails are laid, thereby conveniently, quickly and reliably measuring relevant parameters.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model includes:

[0005] A rail simulation device for measuring ballastless track rails before laying, characterized by comprising:

[0006] Crossbar;

[0007] Brackets arranged at the lower parts of both ends of the crossbar;

[0008] Support feet arranged at both ends of the bottom of the bracket and parallel to the crossbar;

[0009] The distance from the upper surface of the crossbar to the lower surface of the support foot is the design value of the distance from the rail surface of the ballastless track to the sleeper groove;

[0010] The support foot spacing is the design value of the sleeper groove spacing of the ballastless track rail.

[0011] Preferably, the crossbar comprises two rectangular profiles arranged side by side with a spacing therebetween, and the width of the crossbar is not less than the rail surface width of the ballastless track rail.

[0012] Preferably, the support leg comprises a connecting piece connected to both ends of the bottom of the bracket, and a round tube connected to the bottom surface of the connecting piece, and the diameter of the round tube matches the diameter of the sleeper groove.

[0013] Preferably, the bracket spacing is the design value of the sleeper spacing of the ballastless track rails.

[0014] Preferably, the bracket is a triangular bracket formed by splicing profiles.

[0015] Beneficial Effects

[0016] The utility model has the advantages of simple structure, easy to carry and easy to use on site. The staff can easily carry this device to any point that needs to be measured, and start measuring after placing it in place. After the measurement is completed, it can be taken away directly without complicated on-site installation and disassembly steps. The device has high accuracy and reliability, and its relevant dimensional parameters are determined according to the design values ​​of the ballastless track rails to ensure the accurate reproduction of relevant simulation parameters. The device is equipped with a positioning device in combination with the characteristics of the sleepers. On the one hand, it allows the staff to install it quickly and accurately on site, reducing the operation time and complexity; on the other hand, it can effectively avoid the displacement of the device due to the influence of the track slope or the accidental touch of the on-site staff, ensuring the accuracy and reliability of the measurement results. The design of the positioning device not only improves the convenience and safety of operation, but also enhances the stability of the measurement process, so that the device can still guarantee high-precision measurement performance in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front structural diagram of a rail simulation device for measuring ballastless track rails before laying in a preferred embodiment of the utility model;

[0018] Figure 2 It is a side structural diagram of a rail simulation device used for measuring before laying of ballastless track rails in a preferred embodiment of the utility model;

[0019] Figure 3 This is a top view of the structure of a rail simulation device used for measuring ballastless track rails before laying in a preferred embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a rail laying method in the prior art;

[0021] In the figure: 1, cross bar; 2, bracket; 31, connecting piece; 32, round tube; DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described below in conjunction with the accompanying drawings. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 a limitation on the utility model.

[0023] Example 1

[0024] like Figure 1-Figure 3 As shown, this embodiment provides a rail simulation device for measuring ballastless track rails before laying, which is characterized by comprising:

[0025] Crossbar 1. The crossbar 1 is used to simulate rails, and various detection instruments are set up on it to measure relevant parameters. In some preferred embodiments, in order to reduce the weight of the entire rail simulation device, it is considered to use two rectangular profiles arranged side by side with a spacing to simulate the rails. The width of the crossbar 1 is not less than the rail surface width of the ballastless track rail to ensure the accuracy of the test results. In the specific implementation, those skilled in the art can select suitable materials and structures according to the actual needs of the site. For example, thin-walled square rectangular tubes can be used to make the crossbar 1 to further reduce the weight while ensuring strength and stability. It can also be made of other profiles according to actual application requirements to meet the requirements of different measurement environments. The utility model does not make further restrictions on this. This design not only improves the portability and ease of operation of the device, but also maintains high measurement accuracy and reliability in various measurement scenarios, providing an efficient and accurate solution for the construction quality inspection of ballastless tracks.

[0026] The bracket 2 is arranged at the lower part of both ends of the crossbar 1. The bracket 2 is used to support the crossbar 1 and the detection instrument mounted on the crossbar 1 on the one hand, and to maintain the height from the upper surface of the crossbar 1 to the sleeper on the other hand, so as to simulate the height of the rail surface after the rail is laid. In some preferred embodiments, in order to enhance the stability of the bracket 2 and reduce the complexity of the bracket 2 structure, a triangular frame formed by splicing profiles is considered as the bracket 2. This triangular frame bracket 2 structure not only has excellent stability, but also simplifies the manufacturing and installation process of the bracket 2. Through reasonable profile selection and splicing method, the bracket 2 can reduce the overall weight while maintaining high strength and stability, which is convenient for the staff to carry and operate on site. In addition, the triangular frame bracket 2 can effectively cope with the complex changes in the on-site environment, ensure that the crossbar 1 does not tilt or shift during use, and ensure the accuracy and reliability of the measurement data. In short, this bracket 2 design not only optimizes the support effect of the crossbar 1, but also improves the practicality and reliability of the entire detection device, providing a strong guarantee for the rapid and accurate on-site quality inspection of ballastless track construction.

[0027] The support legs are arranged at both ends of the bottom of the bracket 2 and are parallel to the crossbar 1. The support legs are used to directly contact the sleepers to play a role in supporting and maintaining the position. It can be known to those skilled in the art that the surface of the sleeper includes a plane and grooves located on both sides of the plane. If the support legs are directly erected on the plane, the support legs may be displaced when the track is tilted (such as at a bend). On the other hand, due to the clutter of personnel at the construction site, a passing worker may accidentally touch the rail simulation device, which may also cause the support legs to be displaced. At this time, the measurement personnel may need to reset the entire rail simulation device and the measuring instrument, or even cause the entire measurement work to fail and have to start all over again. Therefore, the utility model considers designing the support leg spacing to be the sleeper groove spacing value of the ballastless track rail, so that the support legs cooperate with the grooves to limit the position of the rail simulation device in the sleeper, avoiding the above possible displacement. This design not only effectively prevents the displacement of the support legs caused by track tilt or accidental collision, but also ensures the stability of the device on the sleeper, thereby ensuring the continuity and accuracy of the measurement work.

[0028] In order to ensure the accuracy of the simulation of the design value of the rail surface height by the rail simulation device, it is considered to anchor the distance between the upper surface of the crossbar 1 of the simulated rail surface and the lower surface of the support foot, and design it as the design value of the distance from the rail surface to the sleeper groove of the ballastless track. Specifically, this design will ensure that in any case, the height of the simulated rail surface can accurately reflect the height of the rail surface after the actual rail is laid.

[0029] In other preferred embodiments, considering portability, the rail simulation device is assumed to be on a pair of adjacent sleepers, and at this time, the spacing between the brackets 2 is set to the sleeper spacing design value of the ballastless track rail. Preferably, the spacing between the brackets 2 can be appropriately adjusted based on the sleeper spacing design value, with the goal of preventing any bracket 2 from falling off the corresponding sleeper.

[0030] This design can further improve the portability and practicality of the device. In actual applications, the staff can fine-tune the spacing of the brackets 2 according to the on-site conditions to ensure that the rail simulation device is firmly placed on the adjacent sleepers to avoid falling off or shifting due to inappropriate spacing of the brackets 2. This not only ensures the stability of the device, but also improves the safety and efficiency of the measurement process.

[0031] Example 2

[0032] This embodiment is developed on the basis of the above-mentioned embodiment 1, and provides a specific structure of a support foot. As mentioned above, the support foot needs to cooperate with the groove to limit the position of the rail simulation device in the sleeper to avoid the above-mentioned possible displacement. Those skilled in the art can know that the groove is an arc groove, so the support foot of this embodiment includes:

[0033] Connectors 31 connected to both ends of the bottom of the bracket 2;

[0034] and a round tube 32 connected to the bottom surface of the connecting member 31, wherein the diameter of the round tube 32 matches the diameter of the sleeper groove.

[0035] The circular tube 32 protrudes from the bottom of the bracket 2 and is embedded in the groove of the sleeper when in use, thereby preventing the rail simulation device and the measuring equipment mounted thereon from being offset or displaced. Obviously, the matching is based on the ability of the circular tube 32 to be embedded in the groove of the sleeper. By arranging a protruding circular tube 32 at the bottom of the bracket 2 and matching and embedding it in the groove of the sleeper, the utility model provides a more stable and reliable rail simulation device design, which effectively prevents the offset or displacement of the measuring equipment, ensures high-precision measurement results, and further improves the efficiency and accuracy of ballastless track construction quality inspection.

[0036] Example 3

[0037] This embodiment is developed on the basis of the above-mentioned embodiment 1, and provides a specific method for using a rail simulation device, which specifically includes:

[0038] 1. Determine the area to be tested: Determine the area to be tested according to the test needs, and clean up the debris in the area to be tested to ensure that the measurement environment is clean and barrier-free.

[0039] 2. Setting the bracket 2: Select appropriate sleepers in the area to be tested, and set the brackets 2 of the rail simulation device on the planes of the sleepers on both sides.

[0040] 3. Adjust bracket 2: adjust the support foot of the bracket 2 to match the groove of the sleeper, so that the distance from the upper surface of the crossbar 1 to the lower surface of the support foot is the design value of the distance from the rail surface of the ballastless track to the groove of the sleeper, ensuring the accuracy of the height of the simulated rail surface.

[0041] 4. Install the measuring equipment: Install the measuring equipment on the upper surface of the crossbar 1 to complete the measurement of construction-related parameters. Ensure that the measuring equipment is firmly installed and perform the measurement in accordance with the operating specifications.

[0042] 5. Disassembly and storage: After the measurement is completed, disassemble the measuring equipment and lift the rail simulation device to complete the disassembly and storage of the device.

[0043] This embodiment provides an efficient and convenient method for using a rail simulation device, which can ensure accurate and reliable measurement results in ballastless track construction quality inspection, while simplifying the installation and disassembly process of the device and improving work efficiency.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A rail simulation device for measuring ballastless track rails before laying, characterized in that: include: Crossbar (1); Brackets (2) arranged at the lower parts of both ends of the crossbar (1); Support feet arranged at both ends of the bottom of the bracket (2) and parallel to the crossbar (1); The distance from the upper surface of the crossbar (1) to the lower surface of the support foot is the design value of the distance from the rail surface of the ballastless track to the sleeper groove; The support foot spacing is the design value of the sleeper groove spacing of the ballastless track rail.

2. The rail simulation device for measuring ballastless track rails before laying as claimed in claim 1, characterized in that: The crossbar (1) comprises two rectangular profiles arranged side by side with a spacing, and the width of the crossbar (1) is not less than the rail surface width of the ballastless track rail.

3. The rail simulation device for measuring ballastless track rails before laying as claimed in claim 1, characterized in that: The support leg comprises a connecting piece (31) connected to both ends of the bottom of the bracket (2), and a round tube (32) connected to the bottom surface of the connecting piece (31), wherein the diameter of the round tube (32) matches the diameter of the sleeper groove.

4. The rail simulation device for measuring ballastless track rails before laying as claimed in claim 1, characterized in that: The spacing between the supports (2) is the design value of the sleeper spacing of the ballastless track rails.

5. The rail simulation device for measuring ballastless track rails before laying as claimed in claim 1, characterized in that: The bracket (2) is a triangular bracket (2) formed by splicing profiles.

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