Steel rail joint hole site measuring tool
By designing the hole position measurement tool for rail joints, and using the measuring tool body and transparent patch to compare the actual and theoretical hole positions, the problem of inaccurate measurement of hole position deviation in the existing technology is solved, and fast and accurate hole position measurement is achieved to ensure the reliability of rail joints.
Patent Information
- Application Number
- CN202422177933.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The prior art lacks accurate tools to measure the hole position deviation of rail joints, resulting in drilling deviations may lead to abnormal stress on joint bolts, or even rail breakage.
A rail joint hole position measurement tool including measuring tool body, rail end card and rail surface card is designed. By comparing the actual and theoretical hole positions with transparent patches, fast and accurate hole position deviation measurement is achieved.
It provides a simple structure and easy-to-use measurement tool, which can quickly detect hole position deviations, ensure the reliability of rail joints, and avoid the diseases caused by drilling deviations.
Smart Images
Figure CN223138520U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track measurement, and particularly relates to a measuring tool for the hole positions of rail joints. Background Art
[0002] A rail joint is the connection joint between two rails during track laying. Corresponding bolt holes need to be drilled on the side of the rail, and connecting parts such as splints, bolts, and washers are used for connection, as Figure 1 shown; to adapt to the need of thermal expansion and contraction of the rail, a rail gap is generally left at the rail joint. The accuracy of the bolt hole positions on the side of the rail is directly related to the reliability of the rail joint. It is necessary to measure after drilling to timely detect the hole position deviation and avoid diseases such as bolt damage and rail breakage caused by abnormal stress on the joint bolts after the drilled rails are put into use.
[0003] At present, there is no accurate measuring tool for the hole position deviation of P50 and P60 rails on the track line. The known steel straightedge measurement cannot accurately measure the up-and-down deviation values of the hole positions. Content of the Utility Model
[0004] In view of the defects of the prior art, the utility model provides a measuring tool for the hole positions of rail joints.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A measuring tool for the hole positions of rail joints, the measuring tool includes a measuring tool main body, a rail end card, and a rail surface card. The measuring tool main body is a long strip-shaped thin plate, which is used to lean against the side of the rail hole position during measurement. One end of the measuring tool main body is vertically fixed with a rail end card, and the rail end card is used to lean against the end face of the rail head during measurement. Above the rail end card, a rail surface card is vertically fixed, and the rail surface card is used to lean against the rail surface during measurement. At the position corresponding to the theoretical hole position on the measuring tool main body, there is a slot and a theoretical hole position transparent patch is fixed, which is used to compare with the actual hole position on the side of the rail during measurement.
[0007] Further, the theoretical hole position transparent patch is an integral patch, and a plurality of theoretical hole positions are distributed along the length direction of the patch. A long strip-shaped notch is provided at the position corresponding to the transparent patch in the middle of the measuring tool main body.
[0008] Further, the theoretical hole position transparent patch is a split patch, each patch corresponds to a theoretical hole position, and slots are respectively arranged at the positions corresponding to each theoretical hole position on the measuring tool main body, and the patches are respectively pasted at the positions corresponding to the slots.
[0009] Further, the measuring tool is integrally formed by stamping and bending a metal thin plate.
[0010] Beneficial Effects:
[0011] The measuring tool provided by the utility model has a simple structure and is convenient to use. When measuring, the tool is correctly placed at the end face of the rail. By comparing the deviation between the theoretical hole position and the actual hole position, the measurement of the joint hole position deviation can be quickly and accurately realized, and the problem of hole position deviation can be found in time, providing guarantee for the reliability of the rail joint. The measuring tool can be integrally formed by stamping and bending, and is simple to manufacture and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 Schematic diagram of the rail joint structure;
[0013] Figure 2 Schematic diagram of the structure of the measuring tool of the utility model;
[0014] Figure 3 Schematic diagram of the structure of another embodiment of the utility model.
[0015] Reference numerals: 1 rail surface card, 2 rail end card, 3 measuring tool body, 4 transparent patch for theoretical hole position, 5 long strip notch, 6 card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The following further describes the utility model in detail with reference to the drawings and specific embodiments.
[0017] As Figure 2-3 shown, a rail joint hole position measuring tool of the utility model is used for measuring the hole position on the side of the rail in the rail joint, and includes a measuring tool body 3, a rail end card 2 and a rail surface card 1. The measuring tool body 3 is a long strip thin plate, which is used to lean against the side of the rail hole position during measurement. One end of the measuring tool body 3 is vertically fixed with a rail end card 2, which is used to lean against the end face of the rail during measurement. Above the rail end card 2, a rail surface card 1 is vertically fixed, which is used to lean against the rail surface during measurement. A notch is provided at the position corresponding to the theoretical hole position on the measuring tool body 3 and a transparent patch 4 for the theoretical hole position is fixed, which is used to compare with the actual hole position on the side of the rail during measurement.
[0018] Preferably, the measuring tool is integrally formed by stamping and bending a thin plate. After the measuring tool body 3, the rail end card 2, the rail surface card 1 and the notch are formed into corresponding shapes by stamping, vertical bending is respectively carried out at the connection between the rail end card 2 and the measuring tool body 3 and at the connection between the rail end card 2 and the rail surface card 1, and then the measuring tool can be formed. It is convenient to manufacture and low in cost.
[0019] In the present utility model, the theoretical hole position transparent patch 4 is made of a transparent material (such as acrylic, etc.), which facilitates observing and comparing the actual hole positions through the patch. The transparent patch is fixed on the measuring tool body 3 by means of pasting; the theoretical hole position transparent patch 4 can be in two forms: integral and split.
[0020] As Figure 2 shown, the theoretical hole position transparent patch 4 is an integral patch, and a plurality of theoretical hole positions are distributed along the length direction of the patch. A long strip-shaped notch 5 is provided at the middle position of the measuring tool body 3 corresponding to the position of the transparent patch to avoid the theoretical hole positions. The integral patch facilitates rapid measurement of the same type of rail joint.
[0021] As Figure 3 shown, in this embodiment, the theoretical hole position transparent patch 4 is a split patch, and each patch corresponds to a theoretical hole position. Card slots 6 are respectively arranged at the positions of the measuring tool body 3 corresponding to each theoretical hole position, and the patches are respectively pasted at the positions corresponding to the card slots 6; the advantage of the split patch is that when measuring different rail joints, the split patch can finely adjust the position of the theoretical hole position to meet the requirements of different rail joints.
[0022] The rail end card 2, the rail surface card 1, and the measuring tool body 3 of this measuring tool are arranged perpendicular to each other; when in use, this tool is leaned against the rail end, so that the rail surface card 1 is closely attached to the upper surface of the rail head, and the rail end card 2 is closely attached to the end face of the rail head, then the measuring tool body 3 can be well leaned against the side of the rail hole position; then the actual hole position of the rail is compared with the theoretical hole position transparent patch 4 on the measuring tool, and measurement is carried out through a measuring tool such as a steel ruler, and the deviation direction and deviation value between the actual hole position and the theoretical hole position can be read out, realizing accurate measurement of the rail joint hole position.
[0023] During the new line intervention period, using the measuring tool described in the present utility model, the joint hole position measurement of the artificial on-site drilling and rail matching section can be carried out quickly and accurately, and the hole position deviation problem can be discovered in time, avoiding diseases such as bolt damage and rail breakage caused by abnormal stress of the joint bolts after the drilling deviation rails are put into operation.
[0024] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A rail joint hole position measuring tool, characterized in that The measuring tool includes a measuring tool body (3), a rail end card (2) and a rail surface card (1). The measuring tool body (3) is a long strip-shaped thin plate, which is used to lean against the side of the rail hole during measurement. One end of the measuring tool body (3) is vertically fixed with a rail end card (2), and the rail end card (2) is used to lean against the end face of the rail head during measurement. Above the rail end card (2), a rail surface card (1) is vertically fixed. The rail surface card (1) is used to lean against the rail surface during measurement. At the position corresponding to the theoretical hole position on the measuring tool body (3), there is a slot and a theoretical hole position transparent patch (4) is fixed, which is used to compare with the actual hole position on the side of the rail during measurement.
2. The rail joint hole position measuring tool according to claim 1, characterized in that, The theoretical hole position transparent patch (4) is an integral patch, and a plurality of theoretical hole positions are distributed along the length direction of the patch. A long strip-shaped notch (5) is provided in the middle of the measuring tool body (3) corresponding to the position of the transparent patch.
3. The rail joint hole position measuring tool according to claim 1, characterized in that, The theoretical hole position transparent patch (4) is a split patch, and each patch corresponds to a theoretical hole position. Card slots (6) are respectively arranged at the positions corresponding to each theoretical hole position on the measuring tool body (3), and the patches are respectively pasted at the positions corresponding to the card slots (6).
4. A rail joint hole position measuring tool according to claim 1, characterized in that, The measuring tool is integrally formed by stamping and bending a metal thin plate.