Turnout reduction value and frame size measuring tool

Abstract

This utility model discloses a tool for measuring the turnout reduction value and frame dimensions, belonging to the field of turnout technology. It includes two measuring rulers; each measuring ruler comprises a profile plate and a measuring handle. The profile plate is set perpendicular to the stock rail, with its side near the point rail flush with the section of the stock rail where the frame dimensions are measured. The measuring handle is located in the middle of the other side of the profile plate, with its lower side horizontally positioned and directly above the point rail. The distance M between the lower side of the measuring handle and the top of the stock rail is used. The length of the profile plate is equal to the length of the measuring handle. When measuring the reduction value, only one measuring ruler is used, placed on the top of the stock rail head, to measure the distance between the lower side of the measuring handle and the point rail. When measuring the frame dimensions, two measuring rulers are used. The two measuring rulers are respectively placed at corresponding positions on the top of the two stock rail heads and are positioned opposite each other, measuring the distance between one side of one measuring ruler and the end of the measuring handle of the other measuring ruler, or measuring the distance between the other sides of the two measuring rulers.

Description

Technical Field

[0001] This utility model belongs to the field of turnout technology, and specifically relates to a tool for measuring turnout reduction value and frame size, which is used in conjunction with other measuring tools (for measuring distance, such as calipers, feeler gauges, long rulers, tape measures, etc.) to measure reduction value and frame size. Background Technology

[0002] A turnout is a track device that allows locomotives and rolling stock to switch from one track to another. It is an important component of railway tracks and also a weak link in the line, having a significant impact on train operation safety. This is especially true for high-speed railways, where turnouts hold a very important and special position. With the successive opening, construction, and operation of high-speed railways and passenger dedicated lines in my country, the daily maintenance and repair of turnouts on high-speed railways and passenger dedicated lines has become a completely new challenge. According to the requirements of the "Turnout Laying Manual," during the laying and use of turnouts, the switch rail relative to the stock rail needs to be set with different reduction values ​​at four different cross-sections from the tip of the switch rail; similarly, the turnout frog rail relative to the wing rail also needs to be set with different reduction values ​​at three different cross-sections from the tip of the frog rail.

[0003] For high-speed railway operation, to ensure the safety of passenger train operation, the dimensions of the turnout frame must be kept within a specified range to guarantee the overall structural rigidity and geometric parameters of the turnout. The distance from the side of one stock rail (excluding the rail width) to the same side of another stock rail (including the rail width) is defined as the offset, and the distance from the side of one stock rail (excluding the rail width) to the opposite side of another stock rail (excluding the rail width) is defined as the frame. Both the offset and the frame need to be measured during construction and maintenance.

[0004] For example, patent application number CN202120118284.X discloses a turnout reduction value measuring device, including a guide device, a positioning device, a sliding member, and a digital display scale; the guide device includes a transverse guide plate and a longitudinal guide column; the front end of the transverse guide plate is slidably connected to the longitudinal guide column through a sleeve; a sliding member is slidably sleeved on the transverse guide plate; a digital display scale is fixedly installed on the sliding member; a positioning device is installed at the bottom of the longitudinal guide column, and the inner side of the positioning device is designed according to the shape of the non-working side of the rail and is set to fit the rail.

[0005] For example, patent application number CN202121944487.0 discloses a convenient switch rail reduction value measuring device, including a fixed base, a horizontal bar slidably connected to the fixed base along the vertical direction, a movable base slidably connected to the horizontal bar along the horizontal direction, a measuring scale slidably connected to the movable base along the vertical direction, a fixed block and a movable block provided on the fixed base, both the fixed block and the movable block having a fitting arc surface on their opposite sides, the movable block being slidably connected to the fixed base, and an adjustment component provided between the movable block and the fixed block.

[0006] For example, patent application number CN202021017443.9 discloses a simple track panel frame coarse adjustment measuring device, including a main crossbeam, a column, a crossbeam, a laser rangefinder, and an angle adjustment component for adjusting the angle between the column and the crossbeam; the main crossbeam is equipped with traveling wheels for moving along the rails on the track panel frame; the column is vertically mounted on the main crossbeam and close to the inner rail; the outer end of the crossbeam is hinged to the column, the hinge axis is located at the center line of the top surface of the inner rail, the inner end extends from the top surface of the inner rail, and the front is provided with a function to determine whether the crossbeam is horizontal. The system includes a first leveling mechanism for determining whether the laser rangefinder is horizontal; a second leveling mechanism for determining whether the laser rangefinder is horizontal, with the laser rangefinder's emission window facing the base surface; an angle adjustment assembly between the column and the beam, comprising a slider, a limiting member, and a pull rod; a slider slidably mounted on the column, with its sliding direction perpendicular to the hinge axis of the column and the beam; limiting members on both sides of the slider for fixing its position; and a pull rod with its ends hinged to the beam and the slider, with the hinge axis parallel to the hinge axis of the column and the beam.

[0007] For example, patent application number CN202120132696.9 discloses a digital ruler that can measure the offset and frame of a steel rail turnout, including a ruler body, a handle, and a limit seat. The handle is fixedly installed in the middle of the top surface of the ruler body. Limit seats are fixedly welded to both ends of the ruler body. Movable sleeves are movably fitted to both ends of the ruler body surface. Scales are fixedly opened on both sides of the ruler body surface. Reading grooves are fixedly opened on both sides of the movable sleeve surface. The reading grooves and scales cooperate with each other. Supplementary lights are fixedly embedded on both sides of the inner wall of the reading groove. A fixed frame is fixedly welded to the bottom of the movable sleeve. A roller is rotatably installed on one side of the fixed frame via a rotating shaft. A locking device is threadedly connected to the top of the movable sleeve.

[0008] For example, patent application number CN202223362189.8 discloses a railway turnout frame measuring ruler, including a support rod, a slide rod, and a pair of symmetrically arranged clips. The slide rod is engraved with scale lines and is installed on the support rod, and the slide rod slides along the length direction of the support rod. One of the clips is fixedly installed on the lower end face of the support rod, and the other clip is fixedly installed on the lower end face of the slide rod. The clip includes a fixing frame and a roller. The roller is installed in the fixing frame, the central axis of the roller is vertically arranged, and the outer contour of the axial section of the roller is adapted to the side contour of the main rail.

[0009] For turnout reduction measurement devices, the existing technologies are all relatively complex in structure and cannot be applied to other measurements. Utility Model Content

[0010] To address the aforementioned problems, this utility model provides a tool for measuring turnout downset and frame dimensions. This tool is simple in structure, compact in size, and easy to carry; it can measure turnout downset and frame dimensions. The technical solution is as follows: This utility model embodiment provides a tool for measuring turnout reduction and frame dimensions, including two measuring rulers. Each measuring ruler includes a profile plate 1 and a measuring handle 2. The profile plate 1 is perpendicular to the base rail 3, and its lower side is an arc surface 4 that mates with the rail head of the base rail 3. The side of the profile plate 1 away from the near-switching rail is vertically positioned and covers the side of the base rail 3 away from the switch rail. The other side of the profile plate 1 is vertically positioned and flush with the area of ​​the base rail 3 where the frame dimensions are measured. The measuring handle 2 is located in the middle of the other side of the profile plate 1, perpendicular to the other side of the profile plate 1. Its lower side is horizontally positioned directly above the switch rail. The distance between the lower side of the measuring handle 2 and the top of the base rail 3 is... M, the distance between the upper side of the measuring handle 2 and the upper side of the contour plate 1 is N, M=3-10mm, N=2-20mm; the length of the contour plate 1 is K1, the length of the measuring handle 2 is K2, K1=K2; when measuring the deflection value, only one measuring ruler is used, which is placed on the top of the rail head of the basic rail 3 to detect the distance between the lower side of the measuring handle 2 and the switch rail; when measuring the frame size, two measuring rulers are used; the two measuring rulers are respectively placed at the corresponding positions on the top of the rail heads of the two basic rails 3 and are set opposite each other, to detect the distance between one side of one measuring ruler and the end of the measuring handle 2 of the other measuring ruler or to detect the distance between the other sides of the two measuring rulers.

[0011] In this embodiment of the present invention, the contour plate 1 and the measuring handle 2 form an L-shape. The contour plate 1 and the measuring handle 2 are coplanar and have a thickness of 2-5mm. The upper and lower sides of the contour plate 1 are both horizontally arranged, and the measuring handle 2 is a rectangular plate.

[0012] Furthermore, in this embodiment of the present invention, the upper and lower ends of one side of the contour plate 1 are rounded, the upper end of the other side is rounded, the lower end where it intersects with the arc surface 4 is rounded, and the other side where it intersects with the arc surface 4 is rounded; the lower end of the measuring handle 2 where it intersects with the other side of the contour plate 1 is rounded, the upper end where it intersects with the other side of the contour plate 1 is a right angle, and the upper and lower ends of the side away from the contour plate 1 are rounded.

[0013] In this embodiment of the invention, K1 is 75-100mm.

[0014] Furthermore, in this embodiment of the present invention, the upper part of the contour plate 1, away from the center rail, is provided with a lifting hole 5.

[0015] Specifically, in this embodiment of the present invention, M is 5mm and N is 10mm.

[0016] Specifically, in this embodiment of the present invention, the lower end of one side of the contour plate 1 is flush with the bottom of the rail head of the basic rail 3, and the distance between the intersection of the extension line of the other side of the plate and the rail head of the basic rail 3 and the top of the basic rail 3 is 16mm.

[0017] More specifically, for a 60kg / m standard rail, K1=K2=90mm, M=5mm, N=10mm; the width of one side of the contour plate 1 is 65mm, and the distance between its upper side and the top of the rail is 30mm; the width of the measuring handle 2 is 15mm.

[0018] More specifically, for a 50kg / m standard rail, K1=K2=90mm, M=5mm, N=10mm; the width of one side of the contour plate 1 is 60mm, and the distance between its upper side and the top of the rail is 30mm; the width of the measuring handle 2 is 15mm.

[0019] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a tool for measuring turnout reduction value and frame size, which has a simple structure, small size, and is easy to carry (two measuring rulers can be stacked); it can measure turnout reduction value (using one measuring ruler, which requires the use of other inspection tools (such as feeler gauges)) and frame size (using two measuring rulers, which requires the use of other inspection tools (such as tape measures)). Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the measuring ruler provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the combination of the measuring ruler and the basic rail; Figure 3 This is a structural diagram of the frame when its dimensions are being measured; Figure 4This is a dimensioning diagram for a measuring ruler used to inspect 60kg / m standard rails; Figure 5 This is a dimensioning diagram for a measuring ruler used to inspect a 50kg / m standard rail; Figure 6 This is a schematic diagram of the detection of the decrease value; Figure 7 This is a schematic diagram of the frame size inspection.

[0021] In the diagram: 1. Profiling plate, 2. Measuring handle, 3. Basic rail, 4. Arc surface, 5. Lifting hole. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Example 1 See Figure 1-7 Example 1 provides a tool for measuring the turnout reduction value and frame dimensions, including two identical measuring rulers. Each measuring ruler comprises a profile plate 1 and a measuring handle 2, which form an L-shape (vertically positioned). The profile plate 1 and measuring handle 2 are coplanar, with a thickness of 2-5mm, and can be integrally machined from sheet metal. For different rails, a measuring ruler of the corresponding specification must be used to ensure a close fit with the rail head. This example only describes 60kg / m and 50kg / m standard rails and is not intended to limit this patent.

[0024] The conforming plate 1 is set perpendicular to the base rail 3. Its lower side is an arc surface 4 (consistent with the contour of the rail head) that mates with the rail head of the base rail 3. The side away from the near-switching rail (for ease of description, this patent refers to the left side, but it is not a limitation) is set vertically and covers the side of the base rail 3 away from the switch rail (left side). The other side (for ease of description, this patent refers to the right side, but it is not a limitation) is set vertically and is flush with the detection frame size of the base rail 3 (the specific location can be found on page 28 of the "Turnout Design Manual"). Specifically, the lower left end of the arc surface 4 extends basically vertically upward from the bottom left side of the rail head to the top of the rail, where it fits against the left side of the rail head; then it bends to the right in an arc shape to basically horizontal (slightly convex upward), fitting against the top of the rail head; then it bends downward in an arc shape to basically vertical downward, with the lower end reaching the upper part of the rail head. Specifically, the lower end of one side (left side) of the contour plate 1 is flush with the bottom of the rail head of the basic rail 3, and the vertical distance between the intersection of the extension line of the other side (right side) and the rail head of the basic rail 3 (where the detection frame size is located) and the top of the rail of the basic rail 3 is 16mm.

[0025] The measuring handle 2 is located in the middle of the other side (right side) of the contour plate 1, perpendicular to the other side (right side) of the contour plate 1, with its lower side set horizontally and directly above the switch rail.

[0026] The distance (vertical distance) between the lower side of the measuring handle 2 and the top of the base rail 3 is M. The value of M should ensure easy measurement (e.g., easy measurement with a feeler gauge). Generally, the switch rail should be lower than or flush with the base rail. In actual use, the switch rail may be higher than the base rail. To ensure the tool can be used normally and measure the counter-elevation of the switch rail, an offset M is set. The distance (vertical distance) between the upper side of the measuring handle 2 and the upper side of the profile plate 1 is N. The value of N has no special requirements. M = 3-10mm, N = 2-20mm. The length (left-right length) of the profile plate 1 is K1, and the length (left-right length) of the measuring handle 2 is K2, where K1 = K2. When measuring the drop, only one measuring ruler is used. This measuring ruler is placed on top of the rail head of the base rail 3, and the distance (defined as H) between the lower side of the measuring handle 2 and the switch rail is measured. HM is the drop.

[0027] Specifically, the process is as follows: Locate the corresponding switch rail drawing, and find the positions of the 20, 35, and 50 end faces on the drawing (usually marked when the turnout leaves the factory); find the theoretical reduction value at the corresponding position on the drawing; use the measuring ruler of this patent in conjunction with a feeler gauge to read the measured value H at the corresponding position, and subtract M from the measured value H to get the actual measured value of the reduction; compare the theoretical reduction value with the actual reduction value.

[0028] When measuring the frame dimensions, two measuring rulers are used. The two rulers are placed at the corresponding points on the top of the two basic rails 3 and positioned opposite each other. The distance between one side of one measuring ruler (as shown in Figure 3, the left side) and the end of the measuring handle 2 of the other measuring ruler (the right end) is measured, or the distance between the other sides of the two measuring rulers (between the right side of the profile plate 1 of the left measuring ruler and the left side of the profile plate 1 of the right measuring ruler). The distance can be measured using a tape measure. Figure 3 As shown, conditions at the turnout installation site are often poor, and a measuring tape is generally used for measurement. The method described above involves placing the measuring tape against the extension line of the working edge, while the method below allows for more convenient measurement by hooking the measuring tape with the end of the tape. If the measuring tape end is damaged, a specific integer point in the middle can be used as the starting point for measurement.

[0029] To ensure that the two measuring rulers correspond to the same position on both tracks, the two measuring rulers are aligned with the center of the turnout sleeper.

[0030] Example 2 See Figure 1-5 Example 2 provides a tool for measuring turnout reduction value and frame size. Its structure is basically the same as that of Example 1. The difference is that the upper and lower sides of the contour plate 1 in this example are both set horizontally, and the measuring handle 2 is a rectangular plate (i.e., the upper side is set horizontally).

[0031] Example 3 See Figure 1 Example 3 provides a tool for measuring turnout reduction and frame dimensions. Its structure is basically the same as that of Example 1, except that: the top and bottom ends of one side (left side) of the contour plate 1 in this example are rounded, the top end of the other side (right side) is rounded, the bottom end of the contour plate 1 is rounded, and the junction of the bottom end of the contour plate 1 and the arc surface 4 (specifically the left end) is rounded. The junction of the other side (right side) of the contour plate 1 and the arc surface 4 (specifically the right end) is rounded (specifically R5). The bottom end of the measuring handle 2 is rounded at the junction of the bottom end of the contour plate 1 and the other side of the contour plate 1 is at a right angle. The top and bottom ends of the side away from the contour plate 1 (right side) are rounded.

[0032] Example 4 See Figure 1-5 Example 4 provides a tool for measuring turnout reduction value and frame size, which has a structure that is basically the same as that of Example 1, except that: in this example, the upper part of the profile plate 1, away from the rail, is provided with a lifting hole 5. Specifically, the lifting hole 5 is located in the upper left part of the profile plate 1, and it is a round hole (with a diameter of 5mm).

[0033] Example 5 Example 5 provides a tool for measuring turnout reduction value and frame dimensions. Its structure is basically the same as that of Example 1, except that M is 5mm, N is 10mm, and K1 is 75-100mm.

[0034] Example 6 See Figure 4 Example 6 provides a tool for measuring turnout lowering value and frame dimensions. Its structure is basically the same as that of Example 1, except that: for a 60kg / m standard rail, the thickness of the measuring ruler is 3mm. K1=K2=90mm, M=5mm, N=10mm. The width of one side (left side) of the contour plate 1 is 65mm, and the distance between its upper side and the top of the rail is 30mm. The width of the measuring handle 2 is 15mm.

[0035] Example 7 See Figure 5 Example 7 provides a tool for measuring turnout lowering value and frame dimensions. Its structure is basically the same as that of Example 1, except that: for a 50kg / m standard rail, the thickness of the measuring ruler is 3mm. K1=K2=90mm, M=5mm, N=10mm. The width of one side (left side) of the profile plate 1 is 60mm, and the distance between its upper side and the top of the rail is 30mm. The width of the measuring handle 2 is 15mm.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for measuring turnout lowering value and frame dimensions, characterized in that, Includes two measuring rulers; The measuring ruler includes a contour plate (1) and a measuring handle (2). The contour plate (1) is set perpendicular to the base rail (3). Its lower side is an arc surface (4) that mates with the rail head of the base rail (3). The side away from the near-point rail is set vertically and covers the side of the rail head of the base rail (3) away from the point rail. Its other side is set vertically and is flush with the detection frame size of the base rail (3). The measuring handle (2) is located in the middle of the other side of the contour plate (1). It is perpendicular to the other side of the contour plate (1). Its lower side is set horizontally and it is located directly above the point rail. The distance between the lower side of the measuring handle (2) and the top of the basic rail (3) is M, and the distance between the upper side of the measuring handle (2) and the upper side of the contour plate (1) is N, where M = 3-10 mm and N = 2-20 mm; the length of the contour plate (1) is K1, and the length of the measuring handle (2) is K2, where K1 = K2; When measuring the decrease, only one measuring ruler is used, which is placed on the top of the rail head of the base rail (3) to detect the distance between the lower side of the measuring handle (2) and the switch rail; When measuring the frame dimensions, two measuring rulers are used; the two measuring rulers are placed at the corresponding positions on the top of the rail heads of the two basic rails (3) and set opposite each other, to detect the distance between one side of one measuring ruler and the end of the measuring handle (2) of the other measuring ruler or to detect the distance between the other sides of the two measuring rulers.

2. The tool for measuring turnout reduction value and frame dimensions according to claim 1, characterized in that, The contour plate (1) and the measuring handle (2) form an L-shape. The contour plate (1) and the measuring handle (2) are coplanar and have a thickness of 2-5mm. The upper and lower sides of the contour plate (1) are horizontally arranged, and the measuring handle (2) is a rectangular plate.

3. The tool for measuring turnout reduction value and frame dimensions according to claim 2, characterized in that, The top and bottom ends of one side of the contour plate (1) are rounded, the top end of the other side is rounded, the bottom end of the contour plate (4) is rounded, and the other end of the contour plate (4) is rounded; the bottom end of the measuring handle (2) is rounded at the intersection with the other side of the contour plate (1), the top end of the measuring handle (2) is a right angle at the intersection with the other side of the contour plate (1), and the top and bottom ends of the side away from the contour plate (1) are rounded.

4. The tool for measuring turnout reduction value and frame dimensions according to claim 1, characterized in that, The K1 is 75-100mm.

5. The tool for measuring turnout reduction value and frame dimensions according to claim 1, characterized in that, The upper part of the contour plate (1) and away from the center rail is provided with a lifting hole (5).

6. The tool for measuring turnout reduction value and frame dimensions according to claim 1, characterized in that, M is 5mm and N is 10mm.

7. The tool for measuring turnout reduction value and frame dimensions according to claim 1, characterized in that, The lower end of one side of the contour plate (1) is flush with the bottom of the rail head of the base rail (3), and the distance between the intersection of the extension line of the other side of the contour plate and the rail head of the base rail (3) and the top of the base rail (3) is 16mm.

8. The tool for measuring turnout reduction value and frame dimensions according to claim 2, characterized in that, For a 60kg / m standard rail, K1=K2=90mm, M=5mm, N=10mm; the width of one side of the contour plate (1) is 65mm, and the distance between its upper side and the top of the rail is 30mm; the width of the measuring handle (2) is 15mm.

9. The tool for measuring turnout reduction value and frame dimensions according to claim 2, characterized in that, For a 50kg / m standard rail, K1=K2=90mm, M=5mm, N=10mm; the width of one side of the contour plate (1) is 60mm, and the distance between its upper side and the top of the rail is 30mm; the width of the measuring handle (2) is 15mm.

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