Detection measuring tool for frog point rail

Abstract

The frog point rail detection measuring tool is provided with a ruler body of a T-shaped structure, and a left supporting vernier scale, a right supporting vernier scale and a section vernier scale are installed on the ruler body in a horizontal sliding mode. A depth vernier scale is slidably mounted on a vertical ruler of the ruler body and is matched with a fastening screw; the vertical height difference between the lower end supporting block of the supporting vernier scale and the tip of the lower end clamping jaw of the section vernier scale is 16mm; the left and right section vernier gauges detect the section width of the working edge of the point rail; a detection rod of the depth vernier scale vertically slides and is used for making contact with the top of the point rail, the extending length of the lower end of the detection rod corresponds to the lowering value height of the top of the point rail, and the depth vernier scale is used for detecting the lowering value height of the point rail. The device can be applied to delivery inspection or on-line abrasion detection occasions of the combined frog; the detection precision and the detection efficiency of the section width and the reduction value height of the point rail are improved, and product quality judgment is quickly made.

Description

Technical Field

[0001] The utility model belongs to the technical field of dimensional metrology characterized by physical measurement and mechanical technology, and particularly relates to a measuring tool for detecting the frog heart rail. Background Art

[0002] Due to defects such as loose internal structure, pores, shrinkage cavities, and sand inclusions in the manganese steel integral cast frog, the service life is relatively low, affecting the maintenance and use of the turnout. The combined frog can overcome the deficiencies of the existing integral cast frog, meet the requirements of railway transportation, avoid the phenomenon of scrapping the whole due to partial damage, and is convenient for laying, maintenance, and repair operations on the premise of ensuring the performance of the frog and improving the service life. Parts such as the frog heart rail or wing rail have online interchangeability to reduce the replacement and repair costs, so it is widely used.

[0003] With the increasing annual output of combined frogs and their occupying a certain market share, it is extremely urgent to quickly detect the geometric dimensions of the combined frog finished products at the factory and quickly and highly accurately measure the key train operation parts online by users.

[0004] Under the existing technology, when the combined frog leaves the factory, it is necessary to inspect the width and the height difference of the top surface at different frog heart rail cross-sections. The current detection method is to use a flat steel ruler in cooperation with an inclined feeler gauge for detection. Affected by the top surface of the insert block, the height of the insert block, and the perpendicularity of the steel ruler to the frog center line, the placement reference of the flat steel ruler is not on the standard rail surface, resulting in large measurement errors and cumbersome operations, and it is impossible to accurately determine the width of the frog heart rail cross-section; since the working edge of the frog heart rail has a 1:5 slope, the cross-section width measurement point is located at the line 16 mm below the standard rail top reference surface. Conventional measuring tools cannot accurately locate this position and cannot accurately measure the frog heart rail reduction value height at this position. Therefore, there are problems of low detection accuracy, low detection efficiency, and limited detection positions in the current detection of the frog heart rail cross-section width and the frog heart rail top surface height difference of the combined frog. In response to this, the following improved technical solutions are proposed. Summary of the Utility Model

[0005] The technical problem solved by the utility model: Provide a measuring tool for detecting the frog heart rail to solve the technical problems of low detection accuracy, low detection efficiency, and limited detection positions in the current detection of the frog heart rail cross-section width and the frog heart rail top surface height difference of the combined frog.

[0006] The technical solution adopted by the present utility model: A measuring tool for detecting the frog heart rail has a ruler body, and the ruler body is an inverted T-shaped structure; left and right support vernier calipers are respectively horizontally and slidably and adaptively installed at the left and right ends of the horizontal ruler of the ruler body; left and right section vernier calipers are respectively horizontally and slidably and adaptively installed on the horizontal ruler bodies on the left and right sides of the vertical ruler of the ruler body; a depth vernier caliper is vertically and slidably and adaptively installed on the vertical ruler of the ruler body; fastening screws for locking the positions of the vernier calipers are respectively installed on each vernier caliper; scales are respectively made on the ruler body, the support vernier caliper, the section vernier caliper, and the depth vernier caliper; a support block is provided at the lower end of the support vernier caliper; a vertical claw tip is provided at the lower end of the section vernier caliper; the vertical height difference between the detection tip of the claw tip and the lower horizontal plane of the support block is 16 mm; the detection tip of the claw tip is used to closely fit both sides of the cross-sectional width of the working edge of the heart rail, and the sum of the readings of the left and right section vernier calipers is the cross-sectional width value of the heart rail, and the left and right section vernier calipers are used to detect the cross-sectional width of the working edge of the heart rail; a detection rod is fixedly connected to the bottom end of the depth vernier caliper; the detection rod is a vertical long strip structure; a vertical sliding groove is made on the back of the vertical ruler of the ruler body; the detection rod is vertically and slidably and adaptively installed with the vertical sliding groove, and the detection rod extends out from the lower end of the ruler body and is used to contact the top of the heart rail, and the extending length of the lower end of the detection rod corresponds to the height of the reduction value of the top of the heart rail, and the depth vernier caliper is used to detect the reduction value height of the heart rail.

[0007] In the above technical solution, as a preferred technical solution of the present utility model: The detection accuracy of each vernier caliper of the measuring tool is less than or equal to 0.02 mm.

[0008] In the above technical solution, as a preferred technical solution of the present utility model: Each vernier caliper respectively has a concave sliding frame; the concave sliding frame is slidably and adaptively installed with the ruler body by pulling; the positions of each concave sliding frame are respectively locked by their own fastening screws.

[0009] In the above technical solution, as a further improvement of the present utility model: Scale lines are made on one side of the concave sliding frame; the detection accuracy of each vernier caliper of the measuring tool is marked on the other side of the concave sliding frame.

[0010] In the above technical solution: The lower horizontal planes of the left and right support blocks of the support vernier caliper are coplanar and located on the same horizontal plane.

[0011] In the above technical solution, as a preferred technical solution of the present utility model: The support block and the support vernier caliper are integrally formed.

[0012] In the above technical solution: The lower horizontal plane of the support block of the support vernier caliper vertically supports at the highest point of the standard rail top of the wing rail of the combined frog to be inspected.

[0013] In the above technical solution, as a preferred technical solution of the present utility model: The ruler body is an integrally formed inverted T-shaped structure.

[0014] The advantages of this utility model compared with the prior art:

[0015] 1. The utility model can be applied to the occasions of factory inspection of combined frogs by manufacturing units or online wear detection by railway engineering departments; it can maximize the detection accuracy and detection efficiency of the cross-section width and the height of the lowered value of the heart rail, and can quickly make a product quality judgment after comparing the theoretical values; when used online, it can quickly determine whether the group of frogs meets the conditions for continued use.

[0016] 2. The claw tips of the cross-section vernier ruler of the utility model can directly measure the width value of the 16mm line reference part of the center rail without conversion. The values ​​of the claw tips on both sides can be directly added as the test result; the reading detected by the depth vernier ruler is the height difference between the top surface of the standard rail and the top surface of the center rail, which can be directly compared with the theoretical value on the drawing, so as to find out whether the product quality is abnormal.

[0017] 3. The utility model supports a vernier ruler that can slide along the ruler body within a certain range, and can be applied to occasions with different wing rail and standard rail widths. It has a wide range of applications, is easy to operate, has high detection accuracy, and is easy to carry.

[0018] 4. The utility model supports the position of the mobile vernier scale and takes the top surface of the standard steel rail of the wing rail as the height positioning reference, which conforms to the design reference of the drawing; combined with the use of the vernier scale, the depth detection of the heart rail can be carried out to detect the reduction value at different heart rail section widths.

[0019] 5. The utility model is easy to operate, saves time and effort, and has high measurement accuracy for the measured part. It has high promotion value for daily online observation of railway engineering departments and factory inspection of frog manufacturing units. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the structure of the utility model;

[0021] Figure 2 This is a detection and use state diagram of the utility model;

[0022] Figure 3 For this utility model Figure 1 The depth detection zoomed in detail image;

[0023] Figure 4 This is a schematic diagram of the back structure of the utility model related to depth detection;

[0024] In the figure: 1-support vernier ruler, 101-support block, 2-section vernier ruler, 201-claw ruler tip, 3-depth vernier ruler, 301-detection rod, 4-rule body, 401-vertical slide groove, 5-fastening screw, 6-wing rail standard rail, 7-inlay block, 8-heart rail. Detailed implementation mode

[0025] Next, in combination with the attached drawings in the embodiments of the present utility model Figures 1-4 , the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0026] A measuring tool for detecting the heart rail of a frog, (as Figure 1 shown) has a ruler body 4, and the ruler body 4 is an inverted T-shaped structure. The inverted T-shaped structure has both a horizontal X-direction reference ruler and a vertical Y-direction reference ruler. The horizontal X-direction reference ruler is used to provide a horizontal positioning reference for the horizontal sliding of the support vernier 1 and the section vernier 2, so as to meet the detection requirements of different types of frogs; the vertical Y-direction reference ruler is used to provide a vertical positioning reference for the vertical sliding of the depth vernier 3, so as to meet the detection requirements of different depths. Moreover, the ruler body 4 of the inverted T-shaped structure is an axisymmetric structure about the left and right. Compared with the measuring tools with non-axisymmetric structures on the left and right, it is more convenient for the marking and adjustment reading of the left and right dimensions of the left and right support verniers 1 and the left and right section verniers 2 described later, simplifying the operation and facilitating the reading adjustment.

[0027] In the above embodiment, as a preferred embodiment of the present utility model: the ruler body 4 is an integrally formed inverted T-shaped structure. The integrally formed structure is beneficial to ensuring the technical effect of preventing the ruler body 4 from deforming as a horizontal detection reference and a vertical detection reference, and is beneficial to ensuring the high-precision consistency of the dimensions of the ruler body 4, without the influence of assembly dimension errors caused by assembly.

[0028] The left and right ends of the horizontal ruler of the ruler body 4 are respectively horizontally slidably and adaptively installed with the left and right support verniers 1. The left and right support verniers 1 are slid left and right to meet the positioning support detection adaptability adjustment requirements of the wing rail standard rails 6 with different widths of different types of frogs; in addition, it also provides an immutable positioning support reference for the 16 mm vertical height difference between the lower support block 101 of the support vernier 1 and the detection tip 201 of the claw tip of the rear text, which is beneficial to improving the detection efficiency and simplifying the use operation.

[0029] The left and right section verniers 2 are respectively horizontally slidably and adaptively installed on the horizontal ruler bodies on the left and right sides of the vertical ruler of the ruler body 4; the section vernier 2 is used to detect the section width of the working edge of the heart rail 8. When in use, it is used to move the left and right section verniers 2 and make the claw tips 201 of the left and right section verniers 2 fit the left and right sides of the working edge of the heart rail 8, so as to detect the section width of the working edge of the heart rail 8.

[0030] The vertical ruler of the ruler body 4 is vertically slidably and adaptively installed with a depth vernier 3; the depth vernier 3 is used to detect the reduction value height of the switch rail

[0031] A fastening screw 5 for locking the position of the vernier is installed on each vernier; the detection positions of each vernier are locked by the fastening screw 5, so as to obtain reliable and accurate detection data and prevent the occurrence of detection deviation caused by the displacement of the vernier

[0032] Among them, the ruler body 4, the support vernier 1, the section vernier 2, and the depth vernier 3 are respectively provided with scales

[0033] In the above embodiment, as a preferred embodiment of the present utility model: the detection accuracy of each vernier of the detection measuring tool is less than or equal to 0.02 mm, which improves the detection accuracy

[0034] Specifically, (as Figure 3 shown) In the scale of the ruler body 4, the 0 scale lines symmetric about the left and right axes of the horizontal ruler are respectively arranged on the left and right sides of the center of the ruler body 4 symmetrically about the left and right axes, and the horizontal scale lines increase symmetrically from the middle to both sides. The 0 scale of the vertical ruler is determined according to the zero position of the detection rod 301, and the detection value of the extended detection rod 301 corresponds to the reduction value height of the switch rail

[0035] A support block 101 is provided at the lower end of the support vernier 1; a vertical claw tip 201 is provided at the lower end of the section vernier 2. The vertical height difference between the detection tip of the claw tip 201 and the lower horizontal plane of the support block 101 is 16 mm. Due to the 1:5 slope of the working edge of the switch rail 8 and the fact that the cross-section width measurement point of the switch rail 8 is located at the 16 mm line below the rail top reference plane of the wing rail standard rail 6, the vertical height difference between the detection tip of the claw tip 201 and the lower horizontal plane of the support block 101 is determined according to this height difference of 16 mm, which is used to ensure the quick and consistent detection and positioning of the cross-section width detection position of the working edge of the switch rail 8

[0036] When detecting and using the cross-section width of the switch rail 8: (as Figure 2 shown) The detection tip of the claw tip 201 is used to closely fit both sides of the cross-section width of the working edge of the switch rail 8, and the sum of the readings of the left and right section verniers 2 is the cross-section width value of the switch rail 8, that is, the left and right section verniers 2 are used to detect the cross-section width of the working edge of the switch rail 8

[0037] When detecting the depth of the switch rail 8: (as Figure 4As shown in the figure, a detection rod 301 is fixedly connected to the bottom end of the depth vernier 3; the detection rod 301 has a vertical long strip structure; a vertical sliding groove 401 is formed on the vertical back surface of the ruler body 4; the detection rod 301 is vertically slidably adapted to the vertical sliding groove 401, and the detection rod 301 extends out from the lower end of the ruler body 4 and is used to contact the top of the switch rail 8 (combined with Figure 2 ), the extending length of the lower end of the detection rod 301 corresponds to the height of the reduction value of the top of the switch rail 8, and the reading of the depth vernier 3 is used to detect the height of the reduction value of the switch rail 8.

[0038] In the above embodiment, as a preferred embodiment of the present invention: (as shown in Figure 1 、 Figure 3 ) each vernier has a concave sliding frame; the concave sliding frame is slidably adapted to the ruler body 4 by pulling; the positions of each concave sliding frame are respectively locked by their respective fastening screws 5. This structure is the same as the structure of the vernier of the existing vernier caliper, the component structure is mature, the accessories are easy to obtain, it is convenient for manufacturing and implementation, and it is suitable for popularization and promotion.

[0039] In the above embodiment, as a further improved embodiment of the present invention: a scale line is formed on one side of the concave sliding frame; the detection accuracy of each vernier of the detection measuring tool is marked on the other side of the concave sliding frame, and the marked accuracy is generally 0.02 mm.

[0040] In the above embodiment, the lower horizontal planes of the left and right support blocks 101 of the support vernier 1 are coplanar and located on the same horizontal plane, ensuring the positioning accuracy of the positioning reference of this measuring tool and laying a foundation for the dimension detection accuracy of each vernier.

[0041] In the above embodiment, as a preferred embodiment of the present invention: the support block 101 and the support vernier 1 are integrally formed. The integrally formed structure ensures the reliability of the connection and positioning between the support block 101 and the support vernier 1, and ensures that there is no error influence caused by assembly.

[0042] In the above embodiment, the lower horizontal plane of the support block 101 of the support vernier 1 vertically supports on the highest point of the rail top of the wing rail standard rail 6 of the combined frog to be inspected, ensuring the positioning accuracy and reliability of the support vernier 1 with the rail top of the frog wing rail standard rail 6 as the positioning reference.

[0043] The working principle of the present utility model is as follows: First, before the device is used, the longitudinal distance from the width of the measured switch point 8 to the theoretical tip of the frog is calculated based on the frog angle and the frog number, and the position line is drawn on the rail top of the combined frog wing rail standard rail 6. Then, after symmetrically pulling the support vernier calipers 1 on both sides of the vernier body 4 apart by a certain distance, the lower horizontal plane of the support block 101 of the support vernier caliper 1 is vertically supported at the highest position of the scribed position on the wing rail standard rail 6 of the to-be-inspected combined frog, that is, the lower horizontal plane of the support block 101 of the support vernier caliper 1 is vertically supported at the most central position of the wing rail standard rail 6 rail top surface, and the sectional vernier caliper 2 is also separated by a certain distance in advance. Since the lower plane of the support block 101 of the support vernier caliper 1 is perpendicularly spaced 16 mm from the tip of the jaw tip 201 of the sectional vernier caliper 2, it conforms to the standard measurement reference of the drawing. Next, both hands move the left and right sectional vernier calipers 2 simultaneously, and the two side jaw tips 201 of the left and right sectional vernier calipers 2 are respectively fitted to the left and right sides of the working edge section of the switch point 8 of the to-be-inspected combined frog. Then, the readings of the left and right sectional vernier calipers 2 are respectively read, and the same readings of the two are added to obtain the sectional width of the switch point 8 at this position. Keeping the overall position of the measuring tool unchanged, the depth vernier caliper 3 is moved downward so that the lower end of the measuring rod 301 of the depth vernier caliper 3 moves down and touches the rail top surface of the switch point 8, and the value of the depth vernier caliper 3 is read. At this time, the reading of the depth vernier caliper 3 is the height difference between the rail top of the switch point 8 section and the wing rail standard rail 6, that is, the lowering value height of the switch point 8. The fastening screw 5 is used to respectively fasten the relative displacement sliding of the corresponding vernier caliper and the vernier body 4 when the positions of the vernier calipers are determined, preventing measurement deviations of the vernier calipers. If it is inconvenient to read the on-line readings of the vernier calipers in place, after the jaw tips 201 are closely attached to the measuring part, the fastening screw 5 can be locked, and then the measuring tool is removed and then read, so as not to affect the deviation of the detection data.

[0044] It can be found from the above description that: The present utility model can be applied to the occasions of factory inspection of combined frogs by manufacturing units or on-line wear detection by railway track maintenance departments; it can maximize the detection accuracy and detection efficiency of the sectional width and lowering value height of the switch point 8. After comparing with the theoretical values, the product quality can be quickly judged; when used on-line, it can quickly determine whether this group of frogs meets the conditions for continued use.

[0045] In addition, the jaw tips 201 of the sectional vernier caliper 2 of the present utility model can directly measure the width value of the 16 mm line reference part of the switch point, without conversion, and the values of the two side jaw tips 201 can be directly added as the detection result; the reading detected by the depth vernier caliper 3 is the height difference between the standard rail top surface and the switch point 8 top surface, which can be directly compared with the drawing theoretical values to easily find whether the product quality is abnormal.

[0046] The support vernier 1 of the utility model can slide along the scale body 4 within a certain range, and can be applicable to occasions with different widths of the standard rails 6 of the wing rails. It has a wide application range, is easy to operate, has high detection accuracy, and is convenient to carry.

[0047] By moving the position of the support vernier 1 and taking the top surface of the standard rail 6 of the wing rail as the height horizontal positioning reference, the utility model conforms to the design reference of the drawing. When used in combination with the sectional vernier 2 and the depth vernier 3, the width and depth of the switch rail 8 can be detected, and the reduction value at different sectional widths of the switch rail 8 can be detected.

[0048] In summary, the utility model is easy to operate, time-saving and labor-saving, and has high measurement accuracy for the measured parts. It has high promotion value for the daily on-line observation of the railway track maintenance department and the factory inspection of the frog manufacturing unit.

[0049] It should be understood that although this specification is described according to an embodiment, this embodiment does not only include an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in this embodiment can also be properly arranged and combined to form other embodiments understandable by those skilled in the art.

[0050] The above-mentioned preferred embodiment is not used to limit the scope of implementation of the utility model. Therefore, all equivalent changes made to the content described in the claims of the utility model should be included within the scope of the claims of the utility model. It should be noted that: the parts and materials used in the above-mentioned embodiment are all commercially available unless otherwise specified.

Claims

1. A frog center rail detection measuring tool, characterized in that: The invention relates to a ruler body (4), wherein the ruler body (4) is an inverted T-shaped structure; the left and right ends of the horizontal ruler of the ruler body (4) are respectively slidable horizontally to fit the left and right supporting vernier rulers (1); the left and right sides of the vertical ruler of the ruler body (4) are respectively slidable horizontally to fit the left and right cross-sectional vernier rulers (2); the vertical ruler of the ruler body (4) is vertically slidable to fit the depth vernier ruler (3); each vernier ruler is respectively provided with a fastening screw (5) for locking the position of the vernier ruler; wherein the ruler body (4), the supporting vernier ruler (1), the cross-sectional vernier ruler (2), and the depth vernier ruler (3) are respectively provided with scales; the lower end of the supporting vernier ruler (1) is provided with a supporting block (101); the lower end of the cross-sectional vernier ruler (2) is provided with a vertical clamping claw ruler tip (201); the vertical height difference between the detection tip of the clamping claw ruler tip (201) and the horizontal plane below the supporting block (101) is 16m m; the detection tip of the claw ruler tip (201) is used to closely fit the two sides of the cross-sectional width of the working edge of the heart rail (8); the sum of the readings of the left and right cross-sectional vernier rulers (2) is the cross-sectional width value of the heart rail (8); the left and right cross-sectional vernier rulers (2) are used to detect the cross-sectional width of the working edge of the heart rail (8); the bottom end of the depth vernier ruler (3) is fixedly connected to the detection rod (301); the detection rod (301) is in a vertical strip structure; the vertical ruler back of the ruler body (4) is provided with a vertical slide groove (401); the detection rod (301) is vertically slidably adapted to the vertical slide groove (401), and the detection rod (301) extends from the lower end of the ruler body (4) and is used to contact the top of the heart rail (8); the extension length of the lower end of the detection rod (301) corresponds to the lowering value height of the top of the heart rail (8), and the depth vernier ruler (3) is used to detect the lowering value height of the heart rail (8).

2. The frog center rail detection measuring tool according to claim 1, characterized in that: The detection accuracy of each vernier scale of the detection measuring tool is less than or equal to 0.02mm.

3. The frog center rail detection measuring tool according to claim 1 or 2, characterized in that: Each vernier ruler has a concave sliding frame; the concave sliding frame is adapted to be pulled out and slidably matched with the ruler body (4); the position of each concave sliding frame is locked by a respective fastening screw (5).

4. The frog center rail detection measuring tool according to claim 3, characterized in that: One side of the concave sliding frame is provided with scale lines; the other side of the concave sliding frame is marked with the detection accuracy of each vernier ruler of the detection measuring tool.

5. The frog center rail detection measuring tool according to claim 1, characterized in that: The lower horizontal surfaces of the left and right support blocks (101) supporting the vernier scale (1) are coplanar and located on the same horizontal plane.

6. The frog center rail detection measuring tool according to claim 1 or 5, characterized in that: The support block (101) and the support vernier scale (1) are integrally formed.

7. The frog center rail detection measuring tool according to claim 1 or 5, characterized in that: The lower horizontal surface of the support block (101) supporting the vernier ruler (1) is vertically supported at the highest point of the top of the wing rail standard rail (6) of the combined frog to be inspected.

8. The frog center rail detection measuring tool according to claim 1, characterized in that: The ruler body (4) is an integrally formed inverted T-shaped structure.

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