CN219390797U - Rail high-precision measuring device - Google Patents
Rail high-precision measuring device Download PDFInfo
- Publication number
- CN219390797U CN219390797U CN202222347439.4U CN202222347439U CN219390797U CN 219390797 U CN219390797 U CN 219390797U CN 202222347439 U CN202222347439 U CN 202222347439U CN 219390797 U CN219390797 U CN 219390797U
- Authority
- CN
- China
- Prior art keywords
- gauge
- height difference
- track
- measuring device
- device body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a high-precision track measuring device which comprises a device body, an indium steel body, a track gauge measuring mechanism, a height difference measuring mechanism and a calibration block. The device body is used for installing other parts, the gauge measuring mechanism is installed on the body, the measuring ruler is erected between two rails, one side of the measuring ruler is moved left and right, the maximum value of the horizontal dial indicator is read, and the gauge value is obtained through a special conversion method. The level gauge is enabled to display level by adjusting the height difference adjusting screw, the height difference dial gauge is read, the erection position of the main rail and the auxiliary rail is adjusted, the height difference adjusting screw is adjusted again, the level gauge is enabled to level again, the height difference dial gauge is read again, and the main rail and the auxiliary rail are obtained through conversion. The utility model not only can measure the track gauge, but also can measure the height difference of the main rail and the auxiliary rail, has simple structure and convenient operation, and can meet the requirement of high-precision measurement of the rail.
Description
Technical Field
The utility model belongs to a track measurement device, and particularly relates to a track high-precision measurement device.
Background
When a high-speed test is performed on a track, the test speed is extremely high, and fine jolting can have great influence on success and failure and safety of the test, so that smoothness of the track is required to be ensured. The track gauge and the height difference are two of the most important parameters for evaluating the smoothness of the track. At present, the existing measuring rule basically adopts an electronic handheld type, although the measuring speed is high, the measuring rule is greatly affected by environmental factor changes and human operation errors, and the accuracy of measured data cannot be ensured.
Disclosure of Invention
The utility model aims to: the high-precision track measuring device can be used for accurately measuring track gauges and height differences, and is high in precision and good in stability.
The technical scheme of the utility model is as follows: the high-precision track measuring device comprises a device body, a track gauge measuring mechanism and a height difference measuring mechanism, wherein the device body is provided with a double-leg supporting part and a horizontal part, the track gauge measuring mechanism comprises an indium steel body, a horizontal center and a track gauge dial indicator, the horizontal center and the track gauge dial indicator are respectively arranged on the double-leg supporting part, one end of the indium steel body is fixed with one end leg supporting part of the device body, and the other end of the indium steel body is a free end embedded in the other end leg supporting part of the device body; the height difference measuring mechanism comprises a level gauge, a height difference adjusting screw and a height difference dial indicator, and the level gauge and the height difference dial indicator are respectively and fixedly connected with the other end of the device body 1.
In the scheme, the end part of the horizontal center is spherical, so that the horizontal center is connected in a point-to-point manner when the track gauge is measured.
In the scheme, the height difference adjusting screw is provided with the fine thread, so that the height difference adjusting screw can move up and down in the threaded hole through the fine thread when being adjusted.
In the scheme, the level gauge is a mechanical level gauge and is arranged on the body in a rigid connection mode.
In the above scheme, the track gauge measuring mechanism further comprises a calibration block.
In the scheme, the gauge dial gauge is rigidly connected with the device body.
In the above scheme, the indium steel body is made of indium steel metal material.
In the above scheme, the device body further comprises a handle 8 which is convenient to use.
In the above scheme, the device body further comprises an observation hole for observing data.
In the above scheme, the device body further comprises a device housing for protecting the measuring device.
The utility model has the advantages and beneficial effects that: according to the utility model, the indium steel body is used as a matrix, so that the influence of environmental temperature change on measurement accuracy is greatly reduced; the shortest distance between the points and the surfaces is found by adopting a sliding mode, and the track gauge value is read, so that the measurement repeatability precision is ensured; the device realizes conversion of dial indicator reading and track gauge and height difference, and the measurement accuracy reaches 0.01mm. The whole device has reliable structure, convenient operation and high measurement precision, and can meet the requirement of track precision measurement.
Drawings
Fig. 1 is a schematic front view of the structure of the present utility model.
Fig. 2 is a top view of fig. 1 of the present utility model.
Fig. 3 is a schematic diagram of the measurement state of the present utility model.
Fig. 4 is a schematic diagram of the inventive gage measurement principle.
Fig. 5 is a schematic diagram of the principle of the height difference measurement of the present utility model.
Wherein: 1-device body, 2-indium steel body, 3-horizontal center, 4-gauge measurement percentage table, 5-height difference adjusting screw, 6-height difference measurement percentage table, 7-level gauge, 8-handle, 9-observation hole, 10-calibration block, 11-track.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Referring to fig. 1 to 5, a high-precision rail measuring device comprises a device body 1, a gauge measuring mechanism and a height difference measuring mechanism, wherein the device body 1 is used for mounting and positioning all parts.
The gauge measuring mechanism comprises an indium steel body 2, a horizontal center 3, a gauge measuring dial indicator 4 and a calibration block 10. One end of the indium steel body 2 is fixedly arranged on the device body 1, the other end of the indium steel body is in a free state in the horizontal direction, the gauge measurement dial indicator 4 is arranged at the free end of the indium steel body 2, and trace expansion and contraction of the gauge measurement dial indicator 4 along with the indium steel body 2 are ensured when the ambient temperature changes. When the reading is maximum, the measured track gauge is the perpendicular line of the two tracks, namely the shortest distance, and the method can ensure the accuracy and the repeatability of the measured data.
The horizontal center 3 is fixedly arranged on the device body 1 at one side of the fixed end of the indium steel body 2, the end face of the horizontal center 3 is processed into a ball shape, the point-to-point measurement is realized when the track gauge is measured, and the measurement stability is improved.
The calibration block 10 is a specially shaped, self-contained workpiece machined to have high and low surfaces for calibrating the device when measuring the gauge. Before measuring the gauge, firstly, the lower surface of the calibration block 10 is clung to a gauge measuring dial indicator 4 probe, then, a dial indicator is pressed to be compressed until the upper surface is clung to an indium steel body 2, the gauge measuring dial indicator reading is recorded, the length of the indium steel body 2 and the height surface difference value of the calibration block are known, the length of the indium steel body 2 and the height surface difference value of the calibration block 10 are obtained through measurement and calibration, and the standard gauge of the track design is subtracted after adding three data, so that the standard gauge value of the measuring ruler is obtained.
And (3) abutting the horizontal center against the inner side of one track 11, then moving the other end of the measuring ruler left and right to enable the gauge dial indicator probe to slide on the inner side of the other track, and reading the maximum value. The difference of this value minus the standard gauge value is the deviation of this point from the standard gauge of the track design, with positive values representing small gauge deviations and negative values representing large gauge deviations.
The height difference measuring mechanism comprises a height difference adjusting screw 5 and a height difference measuring dial indicator 6.
The level 7 is rigidly mounted to the device body 1.
The height difference adjusting screw 5 is connected with the device body 1 through fine threads. The differential height measurement dial indicator 6 is fixed on the device body 1, and the probe stretches freely.
When measuring the height difference, firstly, the measuring ruler end is placed on the upper surfaces of the two tracks, the level meter 7 is positioned in the middle by adjusting the height difference adjusting screw 5, and the reading of the dial indicator at the moment is recorded. The two ends of the measuring ruler are exchanged, the height difference adjusting screw 5 is adjusted again to enable the water bubble of the level meter 7 to be located at the center, and the reading of the dial indicator at the moment is recorded. Half of the difference between the two readings is the height difference of the two tracks.
Gage measurement working principle:
referring to fig. 4, the low surface of the calibration block is clung to the gauge probe before measurement, then the low surface is pressed to the high surface to clung to the movable end surface of the indium steel body, the reading A of the dial gauge is recorded, the length L of the indium steel body and the difference B of the high and low surfaces of the calibration block are known, the length L of the indium steel body and the difference B of the high and low surfaces of the calibration block are obtained through calibration, and the standard gauge reading C=A+B+L-E of the measuring ruler in the state can be obtained by the standard gauge value E of the track design.
And (3) abutting the horizontal center against the inner side of one track, and then moving the other end of the measuring ruler left and right to enable the gauge dial indicator probe to slide on the inner side of the track on the other side, reading the maximum value D, and obtaining the difference value between the reading D and the reading C, namely representing the deviation between the track gauge of the point and the standard track gauge value of the track design.
Working principle of height difference measurement:
referring to fig. 5, when measuring the height difference, the measuring ruler end is firstly placed on the upper surfaces of the two tracks, the level gauge bubble is positioned at the center position by adjusting the height difference adjusting screw, and the reading T1 of the dial indicator at the moment is recorded. And then the positions of the main rail and the auxiliary rail measured by the measuring ruler are exchanged, the height difference adjusting screw is adjusted again to enable the level gauge bubble to be located at the central position again, the reading T2 of the dial indicator at the moment is recorded, and the height T=T2-T1 is adjusted.
Assuming that the absolute heights of the two rail surfaces are h1 and h2 respectively, when the jacking height of the height difference adjusting screw is X, the measuring ruler is horizontal, and h2=h1+x can be obtained; leveling again through a height difference adjusting screw after adjusting the measuring ruler, and obtaining h2+X-T=h1; the track height difference X=T/2 is obtained after the formulas are combined;
firstly, the calibration block is pressed to the end face of the indium steel body 2 by abutting against the measuring head of the gauge dial gauge 4, and the pressing stroke is read. And calculating a standard gauge reading value by combining three data of the length of the indium steel body and the thickness of the calibration block obtained through calibration. And comparing the measured readings with the readings of all points, and converting the measured readings into accurate track gauge values.
During measurement, two ends of the measuring ruler are placed on the top surfaces of two tracks, the bubble of the level meter 7 is displayed and centered through the adjustment of the height difference adjusting screw 5, the reading of the dial indicator is recorded, the measuring ruler is placed in the direction of change, the height difference adjusting screw 5 is adjusted again to center the bubble of the level meter 7 again, the reading of the dial indicator is recorded, and the two readings are subtracted by two, so that the height difference value of two points is obtained.
Claims (10)
1. The utility model provides a track high accuracy measuring device, includes device body (1), gauge measuring mechanism and difference in height measuring mechanism, its characterized in that, device body (1) is provided with both legs supporting part and horizontal part, gauge measuring mechanism includes indium steel body (2), horizontal top (3) and gauge percentage table (4), and horizontal top (3) and gauge percentage table (4) set up respectively in both legs supporting part, and indium steel body (2) one end is fixed with the one end leg supporting part of device body (1), and the other end is the other end leg supporting part of free end inlay at device body (1); the height difference measuring mechanism comprises a level meter (7), a height difference adjusting screw (5) and a height difference dial indicator (6), and the level meter (7) and the height difference dial indicator (6) are fixedly connected with the other end of the device body (1) respectively.
2. A high-precision track measuring device according to claim 1, characterized in that the end of the horizontal tip (3) is spherical, so that the horizontal tip (3) is connected in a 'point-to-point' manner when measuring the track gauge.
3. A rail high precision measuring device according to claim 1, characterized in that the height difference adjusting screw (5) is provided with fine threads, so that the height difference adjusting screw (5) is moved up and down in the threaded hole by means of the fine threads when being adjusted.
4. The track high-precision measuring device according to claim 1, characterized in that the level (7) is a mechanical level, which is mounted on the device body (1) by means of a rigid connection.
5. The track high precision measuring device of claim 1, wherein the gage measurement mechanism further comprises a calibration block.
6. A track high precision measuring device according to claim 1, characterized in that the gauge dial gauge (4) is rigidly connected to the device body (1).
7. The track high-precision measuring device according to claim 1, characterized in that the indium steel body (2) is an indium steel metal material.
8. A rail high precision measuring device according to claim 1, characterized in that the device body (1) further comprises a handle (8) for easy use.
9. A rail high precision measuring device according to claim 1, characterized in that the device body (1) further comprises a viewing aperture for viewing data.
10. A rail high precision measuring device according to claim 1, characterized in that the device body (1) further comprises a device housing protecting the measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222347439.4U CN219390797U (en) | 2022-09-02 | 2022-09-02 | Rail high-precision measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222347439.4U CN219390797U (en) | 2022-09-02 | 2022-09-02 | Rail high-precision measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219390797U true CN219390797U (en) | 2023-07-21 |
Family
ID=87171850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222347439.4U Active CN219390797U (en) | 2022-09-02 | 2022-09-02 | Rail high-precision measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219390797U (en) |
-
2022
- 2022-09-02 CN CN202222347439.4U patent/CN219390797U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102506689B (en) | Length measuring instrument-based high precision thread plug gauge measuring device and measurement method | |
| CN101726231B (en) | Multifunctional measuring positioning frame for rail support platform of rapid trains CRTS II type rail plate | |
| CN2264896Y (en) | Perpendicularity visual measuring instrument | |
| CN219390797U (en) | Rail high-precision measuring device | |
| CN212806802U (en) | Small-range comparator for measuring space size of precise spherical surface | |
| CN112781523A (en) | Portable surface defect detection device and method based on laser displacement ranging | |
| CN116046594B (en) | Non-contact type material testing machine displacement rate calibration method | |
| CN109556491B (en) | Forging error checking fixture | |
| CN205748238U (en) | A kind of architectural engineering detection rule for verticality assay device | |
| CN212082204U (en) | Measuring reference surface positioning device | |
| CN213067310U (en) | Accurate dial indicator frame of increaseing | |
| CN111307022A (en) | Odd-number tooth-shaped screw outer diameter measuring meter for air compressor | |
| CN112697023A (en) | Bidirectional interface size measuring device | |
| CN202522196U (en) | Indicating gauge testing fixture for length measuring machine | |
| CN221404172U (en) | Track gauge center line measuring device for calibrating vision sensor | |
| CN221404155U (en) | Portable rail gap measuring device | |
| CN220039325U (en) | Novel height ruler | |
| CN110836625A (en) | Cantilever type length high-precision length measuring device | |
| CN221612003U (en) | Locomotive axle end internal thread pitch diameter detection device | |
| CN213932307U (en) | High-precision groove diameter size measuring mechanism | |
| CN210036531U (en) | Device for measuring height difference of stress point between digital pressure gauge and standard device | |
| CN219223534U (en) | Outer flange ditch position measurement device of third generation hub ball bearing | |
| CN213956218U (en) | Pitch measuring instrument | |
| CN213179957U (en) | High-precision inclinometer | |
| CN220829159U (en) | Device for rapidly measuring axial thrust surface spacing of stepped shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |