A frog working edge inspection tool

Abstract

The present invention provides a frog working edge inspection tool. The tool comprises two wire racks disposed at both ends of the frog in the longitudinal direction, the two wire racks being connected by two pull wires, the two pull wires being disposed along the length of the frog's two working edges. During the inspection process, the pull wires are in a tensioned straight state, with a detection gap remaining between a single pull wire and the corresponding working edge. The tool provides two wire racks disposed at both ends of the frog in the longitudinal direction, the two wire racks being connected by two pull wires, the two pull wires being disposed along the length of the frog's two sets of working edges. During the inspection process, the pull wires are in a tensioned state, and visual inspection can be performed to determine whether the working edge exhibits significant curvature by visually observing the parallelism between the pull wires and the corresponding working edge. Straightening and inspection can be performed simultaneously, eliminating the need to hoist the frog onto a platform for inspection when checking the amount of work performed on the working edge. This saves time, improves efficiency, and reduces reliance on overhead cranes.

Description

Technical Field

[0001] The invention relates to the technical field of detection measuring tools, in particular to a frog working edge inspection tool. Background Art

[0002] A turnout is a device used by trains to switch from one track to another. High-manganese steel frogs are core components of conventional railroad turnouts. High-manganese steel frogs are large castings that undergo water-toughening after casting, resulting in significant deformation of the frog blanks. Before machining, frog blanks require straightening on a straightening machine to correct deformation and ensure adequate machining throughput at each workpiece. Checking the straightness of the working edge is a key and challenging aspect of the straightening process.

[0003] At present, the method for checking the straightening of the working edge of high manganese steel frog is mainly to visually inspect the straightness of the working edge of the frog on the straightening machine, and then lift it to the platform for wire pulling inspection. During the inspection process, the high manganese steel frog needs to be repeatedly lifted between the straightening machine and the platform, which wastes time.

[0004] In summary, there is an urgent need for a frog working edge inspection tool to solve the problems existing in the prior art. Summary of the Invention

[0005] The present invention aims to provide a frog working edge inspection tool to solve the problem of rapid detection of the straightness of the frog blank working edge.

[0006] To achieve the above-mentioned objectives, the present invention provides a frog working edge inspection tool, comprising two wire racks arranged at both ends along the length direction of the frog, the two wire racks being connected by two pull wires, and the two pull wires being respectively arranged along the length directions of the two working edges of the frog; during the inspection process, the pull wires are in a tensioned straight line state, and a detection gap is left between a single pull wire and the corresponding working edge.

[0007] Preferably, a frog working edge inspection tool further comprises a measuring tool for measuring a detection gap between the guy wire and its corresponding working edge.

[0008] Preferably, the detection gap between the pull wire and its corresponding working edge is 5 to 20 mm.

[0009] Preferably, the wire rack includes a main board; the main board includes a first plate and a second plate; the first plate and the second plate are connected to form an angle 1; the angle 1 is the same as the angle 2 formed by the end faces of the two rails located at both ends of the frog in the length direction.

[0010] Preferably, the first plate and the second plate are symmetrically arranged about an intersection line of the two plates.

[0011] Preferably, the wire rack further comprises two slide racks slidably connected to the first plate body and the second plate body respectively; the slide racks are provided with wire holes for connecting the pull wires.

[0012] Preferably, the first plate body and the second plate body are both provided with a first scale; and the slide frame is provided with a second scale at a position corresponding to the first scale.

[0013] Preferably, the slide frame is further provided with a positioning surface aligned with the zero scale line of the second scale, and the positioning surface is used to locate the rail waist center line of the frog.

[0014] Preferably, the slide frame is further provided with a fixing piece for fixing the position between the slide frame and the first plate body or between the slide frame and the second plate body.

[0015] Preferably, a locking piece is further provided on the slide frame, and the wire rack is fixed to the rail of the frog through the combination of the slide frames on the first plate body and the second plate body.

[0016] The application of the technical solution of the present invention has the following beneficial effects:

[0017] (1) In the past, after the frog was straightened on the straightening machine, it needed to be hoisted onto the platform, and the string line was pulled on the platform to check the working edge processing volume. If it was not appropriate, it was hoisted back to the straightening machine and straightened again, and then hoisted onto the platform for inspection, and this process was repeated. The wire rack in the present invention can be directly hung on both ends of the frog, and can be straightened and inspected at the same time. When checking the working edge processing volume, there is no need to hoist the frog onto the platform for inspection, which saves time, improves efficiency, and reduces dependence on the overhead crane.

[0018] (2) In the present invention, two wire racks are provided at both ends of the frog in the longitudinal direction, and the two wire racks are connected by two tension wires. The two tension wires are respectively provided along the longitudinal direction of the two groups of working edges of the frog. During the inspection process, the tension wires are in a tensioned state, and visual inspection can be used to determine whether the working edge has obvious bending by observing the parallelism between the tension wires and the corresponding working edge.

[0019] (3) In the present invention, the inspection gap between the pull wire and the working edge is measured by a measuring tool. The measuring tool can be a ruler with scale lines. The measurement accuracy of the ruler is not less than 1mm to meet the inspection requirements of the straightness of the frog blank.

[0020] (4) In the present invention, the distance between the pull wire and its corresponding working edge is 5 to 20 mm, which facilitates observation and measurement of the distance between the pull wire and the working edge.

[0021] (5) In the present invention, the main board includes a first board and a second board, and the first board is connected to the second board to form an angle 1; the angle 1 is the same as the angle 2 formed by the end faces of the two steel rails at the frog heel end or the angle 3 formed by the end faces of the two steel rails at the frog toe end (because the angle 2 is the same as the angle 3), which can make the main board better fit on the end faces of the frog heel end and the frog toe end, and tighten and fix the tension wire, and the main board of the same wire rack is suitable for the straightness measurement of all specifications of frogs within the same number, which is convenient for improving the versatility of the wire rack.

[0022] (6) In the present invention, the first plate body and the second plate body are symmetrically arranged about the intersection line of the two plates. The intersection line of the first plate body and the second plate body coincides with the intersection line formed by the extension of the end faces of the two rails at the end of the frog, which can achieve the fitting of the wire frame and the end faces of the two rails at the heel end or the toe end of the frog.

[0023] (7) In the present invention, the wire rack further includes two slide frames slidably connected to the first plate body and the second plate body respectively. The slide frames are provided with wire holes for connecting the pull wires. The position of the pull wires can be adjusted by sliding the slide frames according to the specifications of the frog.

[0024] (8) In the present invention, a first scale is provided on each of the first plate and the second plate; a second scale is provided on the slide frame at a position corresponding to the first scale; for a fixed-size frog, the distance from the center line of the rail waist of its end face to the intersection line formed by the extension of the end faces of the two rails at the end of the frog is fixed, and the zero scale line of the second scale is aligned with the corresponding distance value on the first scale; then the wire frame is placed on the end face of the rail so that the intersection line of the first plate and the second plate coincides with the intersection line formed by the extension of the end faces of the two rails at the end of the frog, and the center line of the rail waist of the rail can be found through the zero scale line of the second scale; the slide frame is also provided with a positioning surface aligned with the zero scale line of the second scale, the positioning surface is used to locate the center line of the rail waist of the frog, and then a line is drawn on the rail along the edge line of the positioning surface to obtain the center line of the rail waist of the rail.

[0025] (9) In the present invention, by providing a fixing member on the slide frame, the position of the slide frame on the first plate body / the second plate body can be fixed.

[0026] (10) In the present invention, a locking member is provided on the slide frame, and the wire frame is fixed to the rail of the frog by combining the slide frames on the first plate body and the second plate body.

[0027] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 Schematic diagram of the structure of the rail end face at the acute frog toe end in Example 1 of the present application;

[0030] Figure 2 This is a schematic diagram of a frog working edge inspection tool used in conjunction with an acute angle frog in Example 1 of the present application;

[0031] Figure 3 This is the embodiment 1 of the present application Figure 2 Schematic diagram of the structure of the centerline frame;

[0032] Figure 4 This is the embodiment 1 of the present application Figure 3 A schematic diagram of the structure of the middle slide frame body;

[0033] Figure 5 This is a schematic diagram of the bobbin and the acute angle frog toe end used in conjunction with each other in Example 1 of the present application;

[0034] Figure 6 2 is a schematic structural diagram of an obtuse angle frog in Example 2 of the present application;

[0035] Among them, 1. Wire rack, 1a. Wire rack one, 1b. Wire rack two, 1.1. Main board, 1.1.1. First plate, 1.1.2. Second plate, 1.2. Slide rack, 1.2a. Slide rack one, 1.2b. Slide rack two, 1.2.1. Wire hole, 1.2.2. Positioning surface, 1.2.3. Fixing part, 1.2.4. Locking part, 1.2.5. Slide groove one, 1.2.6. Slide groove two, 1.2.7a. L-shaped extension bracket one, 1.2.7b. L-shaped extension bracket two, 2. Pull wire, 3. Acute angle frog, 4. Obtuse angle frog. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0037] Example 1:

[0038] See also Figures 1 to 5 A frog working edge inspection tool is used to inspect the straightness of the working edge of a high-manganese steel acute-angle frog blank during a straightening process.

[0039] A frog working side inspection tool includes two wire racks 1 arranged at both ends of the frog length direction. In this embodiment, two wire racks 1 are arranged at the heel end and the toe end of the acute angle frog 3; the two wire racks 1 are connected by two pull wires 2, and the two pull wires 2 are respectively arranged along the length direction of the two working sides of the frog. Figure 2 , one of the pull wires 2 is set along the length direction of the working side 1, and the other pull wire 2 is set along the length direction of the working side 2, and the two pull wires 2 cross in the horizontal plane; during the inspection process, the pull wires 2 are in a tensioned straight state, and a detection gap L is left between a single pull wire 2 and the corresponding working side. In this embodiment, a wire frame 1a is provided at the toe end of the acute angle frog 3, and a wire frame 2 1b is provided at the heel end of the acute angle frog 3. The wire frame 1a and the wire frame 2 1b are connected by two pull wires 2, as shown in FIG. Figure 2 As shown, visual inspection can be used to determine whether the working edge has obvious bending by looking at the parallelism between the pull line 2 and the corresponding working edge.

[0040] A frog working edge inspection tool also includes a measuring tool for measuring the detection gap L between the pull wire 2 and its corresponding working edge. The measuring tool can be a ruler with scale lines. The measurement accuracy of the ruler is not less than 1mm to meet the inspection requirements of the straightness of the frog blank.

[0041] The wire 2 is located on the side of the rail where the working edge is located. The detection gap L between the wire 2 and its corresponding working edge is 5 to 20 mm, which facilitates observation and measurement of the distance between the wire 2 and the working edge. The working edge of the frog blank generally has a processing allowance of 3 to 5 mm. Therefore, there should be a spacing of at least 5 mm between the wire 2 and the working edge to prevent protruding parts of the frog blank with processing allowance from interfering with the wire 2, causing the wire 2 to be crooked and making it difficult to inspect the straightness of the working edge. When the distance between the wire 2 and the working edge is greater than 20 mm, it is difficult to measure the distance between the wire 2 and the working edge using a measuring tool.

[0042] The wire rack 1 includes a main board 1.1; the main board 1.1 includes a first plate body 1.1.1 and a second plate body 1.1.2; the first plate body 1.1.1 and the second plate body 1.1.2 are connected to form an angle 1; the angle 1 is the same as the angle 2 formed by the end faces of the two rails at both ends of the frog in the length direction; in this embodiment, the angle 1 is the same as the angle 2 formed by the end faces of the two rails at the heel end of the acute angle frog 3 or the angle 3 formed by the end faces of the two rails at the toe end of the acute angle frog 3 (because the angle 2 is the same as the angle 3), which can make the main board 1.1 better fit on the end faces of the heel end and the toe end of the acute angle frog 3, and tighten and fix the tension wire 2; and since the angle formed by the end faces of the two rails at both ends of frogs of different specifications of the same frog number is the same, the main board 1.1 of the same wire rack 1 is suitable for straightness measurement of frogs of all specifications within the same number.

[0043] The intersection line of the first plate 1.1.1 and the second plate 1.1.2 coincides with the intersection line formed by the extension of the end faces of the two rails at both ends of the frog; in this embodiment, the first plate 1.1.1 and the second plate 1.1.2 are symmetrically arranged about the intersection line of the two plates, which is suitable for the working edge inspection of the acute angle frog 3, and can achieve the fitting of the main plate 1.1 with the heel end or the toe end of the acute angle frog 3.

[0044] The wire rack 1 also includes two slide racks 1.2 which are slidably connected to the first plate 1.1.1 and the second plate 1.1.2 respectively. In this embodiment, a slide rack 1.2a is provided on the first plate 1.1.1, and a slide rack 2 1.2b is provided on the second plate 1.1.2. The structures of the slide rack 1.2a and the slide rack 2 1.2b are symmetrically arranged about the intersection line of the first plate 1.1.1 and the second plate 1.1.2, as shown in FIG. Figure 3 The slide frame 1.2 is provided with a wire hole 1.2.1 for connecting the wire 2, which can be adjusted by sliding the slide frame 1.2 according to the specifications of the acute angle frog 3 to adjust the position of the wire 2, such as Figure 4 The slide frame 1.2 is provided with a first slide groove 1.2.5 and a second slide groove 1.2.6 on the body thereof, for realizing sliding connection with the first plate body 1.1.1 / the second plate body 1.1.2.

[0045] The first plate 1.1.1 and the second plate 1.1.2 are both provided with a first scale; the slide frame 1.2 is provided with a second scale at a position corresponding to the first scale; in this embodiment, the zero scale of the first scale coincides with the intersection of the first plate 1.1.1 and the second plate 1.1.2 (that is, coincides with the intersection formed by the end faces of the two rails at the end of the frog); for a fixed model of frog, the distance from the center line of the rail waist of its end face to the intersection formed by the end faces of the two rails at the end of the frog is fixed. By aligning the zero scale line of the second scale with the corresponding distance value on the first scale, and then placing the wire frame 1 on the end face of the rail, so that the intersection of the first plate 1.1.1 and the second plate 1.1.2 coincides with the intersection formed by the end faces of the two rails at both ends of the frog, the center line of the rail waist of the rail can be found by the zero scale line of the second scale, providing a reference standard for subsequent marking.

[0046] The slide frame 1.2 is also provided with a positioning surface 1.2.2 aligned with the zero scale line of the second scale. The positioning surface 1.2.2 is used to locate the center line of the rail waist of the acute angle frog 3. Then, the center line of the rail waist can be obtained by marking the rail along the edge of the positioning surface 1.2.2.

[0047] The skateboard frame 1.2 is also provided with a fixing member 1.2.3 for fixing the position between the skateboard frame 1.2 and the first plate body 1.1.1 or between the skateboard frame 1.2 and the second plate body 1.1.2; in this embodiment, the fixing member 1.2.3 is a fixing screw, and a screw hole is provided on the main body of the sliding frame 1.2. The fixing screw 1.2.3 is installed on the screw hole, and the end of the screw of the fixing screw abuts against the first plate body 1.1.1 or the second plate body 1.1.2 to fix the position of the skateboard frame 1.2.

[0048] The slide frame 1.2 is also provided with a locking member 1.2.4 for pressing the slide frame 1.2 against the rail of the frog; in this embodiment, the slide frame 1.2 is provided with two L-shaped extension brackets, so that the locking member 1.2.4 installed on the L-shaped extension bracket 1.2.7a can be against the top surface of the rail, so that the locking member 1.2.4 installed on the L-shaped extension bracket 2 1.2.7b can be against the outer side surface of the rail waist, and the slide frame 1.2 combination on the first plate 1.1.1 and the second plate 1.1.2 is realized to fix the wire frame 1 on the two rails at both ends of the frog, i.e., the toe end of the acute angle frog 3 or the heel end of the acute angle frog 3, such as Figure 4 and Figure 5 As shown; the locking piece 1.2.4 is a locking screw that matches the thread of the L-shaped extension bracket.

[0049] The method of using the above-mentioned frog working edge inspection tool is as follows: according to the distance between the center line of the rail waist of the corresponding model of the acute angle frog 3 and the intersection line formed by the end faces of the two rails at both ends of the frog, adjust the relative position of the slide frame 1.2 and the first plate body 1.1.1 / the second plate body 1.1.2, and fix the slide frame 1.2 by the fixing member 1.2.3; then, respectively, set the two wire frames 1 at the two ends of the acute angle frog 3 (i.e., the heel end and the toe end of the acute angle frog 3) through the locking member 1.2.4, so that the two The main plate 1.1 of the wire frame 1 is respectively attached to the end surface of the rail at the heel end or the toe end of the acute angle frog 3; the two wire frames 1 are connected by two tension wires 2 respectively arranged along the length direction of the two sets of working edges, so that the tension wires 2 are in a straight and taut state; a line (rail waist centerline) is marked according to the positioning surface 1.2.2 on the slide frame 1.2; finally, the parallel relationship between the tension wire 2 and the corresponding working edge is visually inspected or the gap L is measured with a measuring tool to determine whether the working edge of the acute angle frog 3 blank has obvious curvature.

[0050] Example 2:

[0051] The difference between this embodiment and embodiment 1 is that a frog working edge inspection tool is used to inspect the working edge of an obtuse-angle frog 4, and the positions of the slide frames 1.2 on the first plate 1.1.1 and the second plate 1.1.2 are set asymmetrically (because the distances from the center lines of the waists of the two rails at the same end of the frog to the intersection formed by the end faces of the two rails are different).

[0052] The structure of the obtuse angle frog 4 is as follows Figure 6 As shown, in this embodiment, two wire racks 1 are arranged at the left and right ends of the obtuse angle frog 4, and two pull wires 2 are arranged along the length direction of the two working edges ( Figure 6 The intersection line of the first plate 1.1.1 and the second plate 1.1.2 coincides with the intersection line formed by the extension of the end faces of the two rails at the left end or the right end of the frog. The position of the slide frame 1.2 on the first plate 1.1.1 and the second plate 1.1.2 can be adjusted according to the distance between the center line of the waist of the two rails at both ends and the intersection line formed by the extension of the end faces of the two rails to check the straightness of the working edge of the obtuse-angle frog 4.

[0053] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A frog working edge inspection tool, characterized in that: The invention comprises two wire racks (1) arranged at both ends along the length direction of the frog, the two wire racks (1) being connected by two tension wires (2), and the two tension wires (2) being arranged along the length direction of the two working sides of the frog respectively; during the inspection process, the tension wires (2) are in a tensioned straight line state, and a detection gap is left between a single tension wire (2) and the corresponding working side; The detection gap between the pull wire (2) and its corresponding working edge is 5 to 20 mm; The wire rack (1) comprises a main plate (1.1); the main plate (1.1) comprises a first plate body (1.1.1) and a second plate body (1.1.2); the first plate body (1.1.1) and the second plate body (1.1.2) are connected to form an angle 1; the angle 1 is the same as an angle 2 formed by the end faces of two rails located at both ends of the frog in the length direction; The first plate (1.1.1) and the second plate (1.1.2) are symmetrically arranged about an intersection line of the two plates; The wire rack (1) further comprises two slide racks (1.2) respectively connected in a sliding manner to the first plate body (1.1.1) and the second plate body (1.1.2); the slide racks (1.2) are provided with wire holes (1.2.1) for connecting the pull wire (2); A first scale is provided on both the first plate body (1.1.1) and the second plate body (1.1.2); a second scale is provided on the slide frame (1.2) at a position corresponding to the first scale; The slide frame (1.2) is further provided with a positioning surface (1.2.2) aligned with the zero scale line of the second scale, and the positioning surface (1.2.2) is used to locate the rail waist center line of the frog.

2. A frog working edge inspection tool according to claim 1, characterized in that: Also included is a measuring tool for measuring the detection gap between the pull wire (2) and its corresponding working edge.

3. A frog working edge inspection tool according to claim 1, characterized in that: The slide frame (1.2) is also provided with a fixing piece (1.2.3) for achieving position fixation between the slide frame (1.2) and the first plate body (1.1.1) or between the slide frame (1.2) and the second plate body (1.1.2).

4. A frog working edge inspection tool according to claim 1, characterized in that: The slide frame (1.2) is further provided with a locking piece (1.2.4), and the wire frame (1) is fixed to the rail of the frog by combining the slide frames (1.2) on the first plate body (1.1.1) and the second plate body (1.1.2).

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