CN220670360U - Rail part section size measuring tool - Google Patents
Rail part section size measuring tool Download PDFInfo
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- CN220670360U CN220670360U CN202322447293.5U CN202322447293U CN220670360U CN 220670360 U CN220670360 U CN 220670360U CN 202322447293 U CN202322447293 U CN 202322447293U CN 220670360 U CN220670360 U CN 220670360U
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- 238000005259 measurement Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a measuring tool for the section size of a steel rail part, and relates to the technical field of railway measurement. The measuring tool for the section size of the steel rail piece comprises a main scale, a first measuring pair and a second measuring pair; one side of the main ruler is provided with a supporting surface which is used for supporting the top surface of the steel rail piece; the first measuring pair is arranged on one side of the main scale and is provided with clamping parts which are arranged in pairs, the clamping parts are used for clamping the side surfaces of the rail heads of the rail parts, and the distance between the clamping parts and the supporting surfaces is a preset value; the second measuring pair is arranged on the other side of the main ruler, and the length of a measuring part of the second measuring pair is larger than a preset value. The rail head width, the rail height and the rail bottom width of the section of the rail part can be measured by the rail part section dimension measuring tool, the number of measuring tools required to be carried by measuring staff is reduced, and the operation is simple, convenient and quick.
Description
Technical Field
The utility model relates to the technical field of railway measurement, in particular to a measuring tool for the section size of a steel rail piece.
Background
The turnout is formed by assembling a finish machining steel rail part and a connecting part, is a weak link of a railway line, and has high precision requirements on all parts. The rail members mainly comprise point rails, wing rails, core rails and the like. For various rail pieces, the cross-sectional rail head width, rail height and rail foot width are critical dimensions in the finishing process.
Wherein the rail head width of the cross section refers to the standard width of the rail member at a position 16mm below the top surface. If the rail head width is too large, key dimensions such as turnout gauge, straightness and the like can be affected. If the rail head width is too small, the rail member may have insufficient strength, and the weight of the train wheel may not be stably supported.
The rail height of the cross section refers to the standard width from the top surface of the rail member to the bottom of the rail member along the rail web center line of the rail member. The rail height mainly influences the turnout reduction value, thereby influencing the driving smoothness and safety.
The width of the rail bottom of the section refers to the standard width from one end to the other end of the rail bottom section position of the rail piece. If the rail foot width is too large, rail foot interference during the assembly of the switch can occur. If the rail bottom width is too small, the rail member may have insufficient strength, and the weight of the train wheel may not be stably supported.
Currently, the rail head width is generally measured by adopting a caliper special for the rail head, the precision is 0.02mm, and the measuring range is 0-100mm. The rail height is measured by adopting a common I-shaped caliper with the precision of 0.02mm and the measuring range of 0-500mm. The measurement of the rail bottom width generally adopts a common I-shaped caliper with the precision of 0.02mm and the measuring range of 0-200mm or 0-300mm.
When measuring rail spare, measurement personnel only need carry three kinds of special/ordinary callipers just can accomplish the measurement task at least, and the operation is comparatively loaded down with trivial details.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide a measuring tool for the section size of a steel rail piece.
The utility model provides the following technical scheme:
a measuring tool for the section size of a steel rail part comprises a main scale, a first measuring pair and a second measuring pair;
one side of the main scale is provided with a supporting surface which is used for supporting the top surface of the steel rail piece;
the first measuring pair is arranged on one side of the main scale, the first measuring pair is provided with clamping parts which are arranged in pairs, the clamping parts are used for clamping the side surfaces of the rail heads of the rail parts, and the distance between the clamping parts and the supporting surface is a preset value;
the second measuring pair is arranged on the other side of the main scale, and the length of a measuring part of the second measuring pair is larger than the preset value.
As a further alternative to the rail element cross-sectional dimension measuring device, the measuring point length of the second measuring pair is not less than half the rail base width of the rail element.
As a further alternative scheme for the measuring tool for the section size of the steel rail part, the first measuring pair comprises a first measuring head and a second measuring head, the first measuring head is fixedly arranged on the main scale, and the second measuring head is movably arranged on the main scale along the connecting line direction of the second measuring head and the first measuring head;
one clamping part is positioned at one side of the first measuring head facing the second measuring head, and the other clamping part is positioned at one side of the second measuring head facing the first measuring head.
As a further alternative to the rail member cross-sectional dimension gauge, a wear-resistant member is provided on both a side of the first measuring head facing the second measuring head and a side of the second measuring head facing the first measuring head, and the clamping portion is located on the wear-resistant member.
As a further alternative to the rail member cross-sectional dimension gauge, two of the wear members are provided so as to protrude toward each other on a side away from the abutment surface, so as to form the clamping portions, respectively.
As a further alternative to the measuring tool for the cross-sectional dimension of the rail member, a sliding member is slidably disposed on the main scale, a sliding direction of the sliding member is parallel to a connecting line direction of the first measuring head and the second measuring head, and the second measuring head is connected with the sliding member.
As a further alternative to the rail element cross-sectional dimension gauge, the slide element is provided with a brake element for fixing the slide element relative to the main scale.
As a further alternative to the rail member cross-sectional dimension gauge, the slider is provided with a digital readout device.
As a further alternative scheme of the rail member section dimension measuring tool, the second measuring pair comprises a third measuring head and a fourth measuring head, the third measuring head is fixedly arranged on the main scale, and the fourth measuring head is movably arranged on the main scale along the connecting line direction of the fourth measuring head and the third measuring head.
As a further alternative to the measuring tool for the cross-sectional dimension of the rail member, a sliding member is slidably disposed on the main scale, a sliding direction of the sliding member is parallel to a connecting line direction of the third measuring head and the fourth measuring head, and the fourth measuring head is connected with the sliding member.
The embodiment of the utility model has the following beneficial effects:
in the rail member cross-sectional dimension measuring tool, the first measuring pair arranged on one side of the main scale is used for measuring the rail head width of the rail member. During measurement, a measurer makes the abutting surface abut against the top surface of the steel rail piece, and then makes the clamping parts respectively clamp the two side surfaces of the rail head of the steel rail piece. Through the interval of presetting clamping part and supporting face, the distance between two clamping parts is just the rail head width of rail spare, and the measurement personnel can read out the numerical value of rail head width on the main scale. In addition, the length of the measuring part of the second measuring pair arranged on the other side of the main ruler is larger than the preset distance between the clamping part and the abutting surface, and the measuring part is more suitable for clamping the top surface and the bottom surface of the steel rail piece or clamping the two side surfaces of the rail bottom of the steel rail piece, so that the rail height and the rail bottom width of the steel rail piece are measured. The rail head width, the rail height and the rail bottom width of the section of the rail part can be measured by the rail part section dimension measuring tool, the number of measuring tools required to be carried by measuring staff is reduced, and the operation is simple, convenient and quick.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic overall structure of a rail member cross-sectional dimension gauge according to an embodiment of the present utility model;
fig. 2 is a schematic diagram showing a state of measuring rail head width by a rail member section dimension measuring tool according to an embodiment of the present utility model;
fig. 3 is a schematic view showing a state of measuring rail height by a rail member section dimension measuring tool according to an embodiment of the present utility model;
fig. 4 is a schematic diagram showing a state of measuring the width of a rail bottom by using the rail member section dimension measuring tool according to the embodiment of the present utility model.
Description of main reference numerals:
100-main scale; 110-an abutment surface; 120-sliders; 121-a brake; 122-a digital display reading device; 200-a first measurement pair; 210-a first measuring head; 220-a second measuring head; 230-wear part; 300-a second measurement pair; 310-a third measuring head; 320-fourth measuring head; 400-rail parts; 410-top surface; 420-bottom surface; 430-rail head side one; 440-rail head side two; 450-rail foot side one; 460-rail bottom side two.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the prior art, the rail head width is generally measured by adopting a caliper special for the rail head, the precision is 0.02mm, and the measuring range is 0-100mm. The rail height is measured by adopting a common I-shaped caliper with the precision of 0.02mm and the measuring range of 0-500mm. The measurement of the rail bottom width generally adopts a common I-shaped caliper with the precision of 0.02mm and the measuring range of 0-200mm or 0-300mm.
When measuring rail spare, measurement personnel only need carry three kinds of special/ordinary callipers just can accomplish the measurement task at least, and the operation is comparatively loaded down with trivial details. In addition, the large-range callipers used when measuring the rail height have the disadvantages of heavy body, more laborious and unstable single-person one-hand support rule, and measurement deviation can occur when the single-person one-hand support rule is slightly inclined. Further, when the measurement operation is performed at night, the light is insufficient, so that the reading of the numerical value is easy to be blurred, which is inconvenient.
Examples
Referring to fig. 1, the present embodiment provides a rail member 400 cross-sectional dimension measuring tool (hereinafter, simply referred to as "measuring tool") for measuring the cross-sectional dimension of the switch rail member 400, including the rail head width, the rail height and the rail bottom width. The gauge is composed of a main scale 100, a first measuring pair 200 and a second measuring pair 300.
Specifically, an abutment surface 110 is disposed on one side of the main scale 100, and the abutment surface 110 is used to abut against a top surface 410 (see fig. 2) of the rail member 400.
The first measuring pair 200 is provided on one side of the main scale 100, and the first measuring pair 200 has a holding surface 110 and a pair of holding portions. The clamping portion is used for clamping the side surface of the rail head of the rail member 400, and the distance between the clamping portion and the supporting surface 110 is a preset value.
The distance between the clamping portion and the supporting surface 110 refers to the vertical distance between the clamping portion and the supporting surface 110.
In this embodiment, the preset value is 16mm.
In addition, the second measuring pair 300 is disposed at the other side of the main scale 100, and the measuring part length of the second measuring pair 300 is greater than the aforementioned preset value.
In the gauge, the first measuring pair 200 provided at one side of the main gauge 100 is used to measure the head width of the rail member 400. In measurement, the measurement person makes the abutting surface 110 abut against the top surface 410 of the rail member 400, and then makes the holding portions hold both side surfaces of the rail head of the rail member 400, respectively. By presetting the spacing between the clamping portions and the abutment surface 110, the distance between the two clamping portions is exactly the rail head width of the rail member 400, and a measuring person can read the value of the rail head width on the main scale 100.
In addition, the length of the measuring part of the second measuring pair 300 disposed at the other side of the main scale 100 is greater than the preset distance between the clamping part and the abutting surface 110, and is more suitable for clamping the top surface 410 and the bottom surface 420 of the rail member 400 or clamping both side surfaces of the rail bottom of the rail member 400, thereby measuring the rail height and the rail bottom width of the rail member 400.
Therefore, the measuring tool can realize one-scale measurement of the rail head width, the rail height and the rail bottom width of the section of the steel rail 400, reduce the number of measuring tools required to be carried by measuring staff, and is simple, convenient and quick to operate.
Specifically, the first measurement pair 200 includes a first measurement head 210 and a second measurement head 220. The first measuring head 210 is fixedly arranged on the main scale 100, and the second measuring head 220 is movably arranged on the main scale 100 along the connecting line direction with the first measuring head 210, and is schematically shown in the X direction.
In addition, one clamping part is positioned on one side of the first measuring head 210 facing the second measuring head 220, and the other clamping part is positioned on one side of the second measuring head 220 facing the first measuring head 210.
Referring to fig. 2, in use, a measurer first places the first measuring head 210 on the first rail head side 430 of the rail member 400, then pushes the second measuring head 220, moves the second measuring head 220 along the X direction to the second rail head side 440 of the rail member 400, and then clamps the rail member 400 by the first measuring head 210 and the second measuring head 220, so as to read the value of the rail head width on the main scale 100.
In actual use, since the first rail head side 430 and the second rail head side 440 of the rail member 400 are generally curved or inclined, the first measuring head 210 and the second measuring head 220 tend to be tangential to the rail member 400 when clamping the rail member 400, and the forces are too concentrated, which easily results in wear of the first measuring head 210 and the second measuring head 220.
In order to avoid measuring errors of the first measuring head 210 and the second measuring head 220 due to wear, wear-resistant members 230 are provided on both the side of the first measuring head 210 facing the second measuring head 220 and the side of the second measuring head 220 facing the first measuring head 210.
Accordingly, the clamping portion is located on the wear member 230. When the first measuring head 210 and the second measuring head 220 clamp the rail member 400, the first measuring head 210 and the second measuring head 220 are respectively abutted with the rail member 400 through the corresponding wear-resistant members 230.
In this embodiment, the wear-resistant members 230 are made of high-speed wear-resistant steel, and the two wear-resistant members 230 are respectively embedded in the ends of the first measuring head 210 and the second measuring head 220, which are far away from the abutting surface 110.
Further, the wear part 230 is cubic, and has a size of 3×5×10mm. The two wear members 230 are provided to protrude toward each other at a side away from the abutting surface 110 to form clamping portions, respectively, so as to ensure that only the clamping portions of the first measuring head 210 and the second measuring head 220 are in contact with the rail member 400 when the rail member 400 is clamped.
Referring again to fig. 1, specifically, the second measuring pair 300 includes a third measuring head 310 and a fourth measuring head 320. The third measuring head 310 is fixedly arranged on the main scale 100, the fourth measuring head 320 is movably arranged on the main scale 100 along the connecting line direction with the third measuring head 310, and the connecting line direction of the third measuring head 310 and the fourth measuring head 320 is also the X direction.
Referring to fig. 3, when measuring the rail height of the rail member 400, a measurer first makes the third measuring head 310 lean against the bottom surface 420 of the rail member 400, then pushes the fourth measuring head 320, makes the fourth measuring head 320 move to the top surface 410 of the rail member 400 along the X direction, and makes the third measuring head 310 and the fourth measuring head 320 clamp the rail member 400, and further reads the value of the rail head width on the main scale 100.
Referring to fig. 4, similarly, when measuring the rail bottom width of the rail member 400, the measurer first makes the third measuring head 310 abut against the first rail bottom side 450 of the rail member 400, then pushes the fourth measuring head 320, makes the fourth measuring head 320 move to the second rail bottom side 460 of the rail member 400 along the X direction, and then makes the third measuring head 310 and the fourth measuring head 320 clamp the rail member 400, so as to read the value of the rail bottom width on the main scale 100.
The third measuring head 310 and the fourth measuring head 320 are arranged in a strip shape, and the length direction of the third measuring head 310 and the length direction of the fourth measuring head 320 are perpendicular to the X direction.
In addition, the length of the third measuring head 310 and the fourth measuring head 320 is the length of the measuring site of the second measuring pair 300, and the length of the measuring site is not less than half the rail bottom width of the rail member 400.
At this time, the second measuring pair 300 can abandon the design of the existing vernier caliper with a large measuring range (500 mm) in the rail height measurement, and adopts a design mode with a small measuring range (200 mm) which is universal for measuring the rail head width and the rail bottom width, so as to overcome the defects of weight unbalance and mismatching of the length of a measuring part and the small measuring range caused by the large measuring range of the existing vernier caliper.
In the present embodiment, the measurement site length of the second measurement pair 300 is 90mm. The ends of the third measuring head 310 and the fourth measuring head 320 far from the main scale 100 are effective contact parts which directly contact the rail member 400, and the length of the effective contact parts is 60mm.
Referring to fig. 1 again, specifically, a sliding member 120 is slidably disposed on the main scale 100, and a sliding direction of the sliding member 120 is parallel to the X direction. Accordingly, the second measuring head 220 and the fourth measuring head 320 are each connected to the slider 120 so as to be slidably disposed on the main scale 100 in the X direction.
In use, a measurement person moves the second measurement head 220 and the fourth measurement head 320 by pushing the slider 120.
Further, a stopper 121 is provided on the slider 120, and the stopper 121 is used to fix the slider 120 with respect to the main scale 100.
When the first measuring head 210 and the second measuring head 220, the third measuring head 310 and the fourth measuring head 320 clamp the rail member 400, the brake member 121 fixes the sliding member 120 on the main scale 100, so as to prevent the second measuring head 220 or the fourth measuring head from loosening in the measuring process and avoid the influence of the measuring result.
In the present embodiment, the stopper 121 is a screw. The screw is threaded on the slider 120, is in threaded engagement with the slider 120, and abuts against the main scale 100. The sliding member 120 can be fixed by the frictional force between the screw and the main scale 100 by the measurer's screw.
Further, a digital readout device 122 is disposed on the slider 120.
The accuracy of the digital display reading device 122 can reach 0.001mm, and the measurement accuracy is improved. In addition, the digital readout device 122 is less affected by the ambient brightness, and can perform a smooth readout even at night.
In a word, the measuring tool can realize one-scale measurement of the rail head width, the rail height and the rail bottom width of the section of the steel rail 400, reduce the number of measuring tools required to be carried by measuring staff, and is simple, convenient and quick to operate. In addition, compared with the wide-range vernier caliper used for measuring the height of the existing rail, the measuring tool is lighter in weight, saves more labor when measuring the height of the rail, and can improve the measuring precision.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. The measuring tool for the section size of the steel rail piece is characterized by comprising a main scale, a first measuring pair and a second measuring pair;
one side of the main scale is provided with a supporting surface which is used for supporting the top surface of the steel rail piece;
the first measuring pair is arranged on one side of the main scale, the first measuring pair is provided with clamping parts which are arranged in pairs, the clamping parts are used for clamping the side surfaces of the rail heads of the rail parts, and the distance between the clamping parts and the supporting surface is a preset value;
the second measuring pair is arranged on the other side of the main scale, and the length of a measuring part of the second measuring pair is larger than the preset value.
2. The rail member cross-sectional dimension gauge of claim 1, wherein the measurement site length of the second measurement pair is not less than half of the rail foot width of the rail member.
3. The rail member cross-sectional dimension gauge according to claim 1 or 2, wherein the first measuring pair includes a first measuring head and a second measuring head, the first measuring head is fixedly provided to the main scale, and the second measuring head is movably provided to the main scale along a connecting line direction with the first measuring head;
one clamping part is positioned at one side of the first measuring head facing the second measuring head, and the other clamping part is positioned at one side of the second measuring head facing the first measuring head.
4. A rail member cross-sectional dimension gauge as claimed in claim 3, wherein the side of the first measuring head facing the second measuring head and the side of the second measuring head facing the first measuring head are both provided with wear members, the clamping portion being located on the wear members.
5. The rail member cross-sectional dimension gauge as claimed in claim 4, wherein two of the wear members are provided protruding toward each other on a side away from the abutment surface to form the clamping portions, respectively.
6. A rail member cross-sectional dimension gauge as claimed in claim 3, wherein a slider is slidably disposed on the main scale, a sliding direction of the slider being parallel to a line connecting the first measuring head and the second measuring head, the second measuring head being connected to the slider.
7. The rail member cross-sectional dimension gauge as claimed in claim 6, wherein a stopper member is provided on the slider member, the stopper member being for fixing the slider member with respect to the main scale.
8. The rail member cross-sectional dimension gauge as claimed in claim 6, wherein the slider is provided with a digital readout device.
9. The rail member cross-sectional dimension gauge as claimed in claim 1 or 2, wherein the second measuring pair includes a third measuring head and a fourth measuring head, the third measuring head being fixedly provided to the main scale, the fourth measuring head being movably provided to the main scale in a direction of a line connecting the third measuring head.
10. The rail member cross-sectional dimension gauge as claimed in claim 9, wherein a sliding member is slidably provided on the main scale, a sliding direction of the sliding member is parallel to a connecting line direction of the third measuring head and the fourth measuring head, and the fourth measuring head is connected to the sliding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322447293.5U CN220670360U (en) | 2023-09-08 | 2023-09-08 | Rail part section size measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322447293.5U CN220670360U (en) | 2023-09-08 | 2023-09-08 | Rail part section size measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220670360U true CN220670360U (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322447293.5U Active CN220670360U (en) | 2023-09-08 | 2023-09-08 | Rail part section size measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220670360U (en) |
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2023
- 2023-09-08 CN CN202322447293.5U patent/CN220670360U/en active Active
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