CN214728841U - High-precision wheel set equivalent taper on-line measuring device - Google Patents
High-precision wheel set equivalent taper on-line measuring device Download PDFInfo
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- CN214728841U CN214728841U CN202121013523.1U CN202121013523U CN214728841U CN 214728841 U CN214728841 U CN 214728841U CN 202121013523 U CN202121013523 U CN 202121013523U CN 214728841 U CN214728841 U CN 214728841U
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Abstract
The utility model discloses an aspect discloses a high accuracy wheel pair equivalent taper on-line measuring device, including the H style of calligraphy base that is located the track medial surface, the briquetting, the connecting rod that is located the track lateral surface, connecting axle, left side laser profile sensor, right side laser profile sensor, trigger device, the left front side laser displacement sensor, right front side laser displacement sensor, left rear side laser displacement sensor, right rear side laser displacement sensor who fix respectively in the base both sides; the base is fixed relative to the rail through the downward pressure of the pressing block, the base is respectively and fixedly connected to the left laser profile sensor and the right laser profile sensor on the two sides of the connecting rod through the connecting shaft in an axisymmetric mode, and the trigger device is fixed to the middle of one side of the base. The utility model has high measuring accuracy, can be automatically completed, and avoids errors caused by human factors; the measured data can be directly printed and checked or transmitted to an information system, so that the method is simple and clear, and has low requirement on the specialization degree of operators.
Description
Technical Field
The utility model relates to a rail vehicle wheel geometry and parameter on-line measuring and measurement technical field, concretely relates to high accuracy wheel pair equivalent tapering on-line measuring device.
Background
The equivalent conicity value of the wheel set is an important parameter influencing the contact state of the wheel track of the railway vehicle, so that the accurate measurement of the equivalent conicity value of the wheel set is very important for guaranteeing the safe operation of the train.
When measuring the equivalent taper of the wheel pair, the values of the tread contour of two wheels in the wheel pair, the inner side distance between the two wheels, the inclination angle of the two wheels and the like must be obtained first, and then the equivalent taper value of the wheel pair is obtained through the computer calculation of the values. The existing measuring methods mainly comprise two methods: measuring various numerical values of the wheel pair by using different handheld measuring instruments manually operated aiming at various parameters of the wheel pair, and inputting the numerical values into a computer for operation so as to obtain an equivalent conicity value of the wheel pair; when the non-falling wheel turning operation is carried out on the train, various numerical values of the wheel set are measured by using a measuring device of the non-falling wheel turning machine, and the computer of the non-falling wheel turning machine calculates the numerical values so as to obtain the equivalent conicity value of the wheel set. For the calculation of equivalent taper, reference: wuning, Dongxiao paniculate swallowwort root, Linfengtao, etc. calculation and verification of equivalent conicity [ J ] rolling stock, 2013, 33(1): 49-52.
The existing measuring mode mainly has the following defects:
(1) the measurement mode of manually operating the handheld instrument is adopted, the requirement on the specialization degree of an operator is high, and due to the influence of manual operation factors, measurement data are easily caused to generate large errors, so that the measurement accuracy of the equivalent conicity value is influenced.
(2) The measurement mode that adopts manual operation hand-held type instrument is very low in efficiency, and the train that awaits measuring need for a long time to stop in overhauing the place, can drag the train maintenance progress slowly and lead to the train application rate to reduce.
(3) The method adopts a measuring device of the lathe for measuring various numerical values of the wheel set, although the measuring accuracy can be ensured and the detection efficiency is higher than that of the handheld instrument, the whole measuring process needs to be carried out during the turning operation of the train, the turning operation period of the train is longer than that of the equivalent taper detection period, a large number of trains can not be detected in time, if the train without the turning operation is adjusted to the lathe for measuring, the train can conflict with the train needing the turning operation to cause the disorder of the maintenance operation plan of the train and the slow maintenance progress of the train.
Therefore, how to provide a wheel set equivalent taper measuring device which is convenient and efficient, has high measuring precision and can realize online through type measurement without train stop becomes a problem which needs to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the not enough of current wheel pair equivalent taper measuring method, the utility model provides a high accuracy wheel pair equivalent taper on-line measuring device, the technical scheme of adoption is: a high-precision wheel set equivalent taper online measuring device comprises an H-shaped base (3) located on the inner side face of a track (2), a pressing block (4), a connecting rod (401) located on the outer side face of the track (2), a connecting shaft (5), a left laser contour sensor (6), a right laser contour sensor (7), a trigger device, a left front side laser displacement sensor (9), a right front side laser displacement sensor (10), a left rear side laser displacement sensor (11) and a right rear side laser displacement sensor (12) which are respectively fixed on two sides of the base (3); the base (3) is relatively fixed with the track (2) through the downward pressure of the pressing block (4), the base is respectively and fixedly connected with a left laser profile sensor (6) and a right laser profile sensor (7) on two sides of the connecting rod (401) through a connecting shaft (5) in an axisymmetric mode, and the trigger device is fixed in the middle of one side of the base (3).
All the sensors are calibrated by using a high-precision special measuring tool before being installed and fixed. The rail (2) is various steel rails used in a rail transit site, and the rail (2) is preferably a rail of a rail transit site straight line section.
Further, the triggering device is a wheel sensor (8), and when the wheel is detected, the measuring device is turned on, and when the train leaves, the measuring device is turned off.
Furthermore, the elevation angles of the laser emission planes of the left laser profile sensor (6) and the right laser profile sensor (7) and the horizontal plane A of the track (2) are alpha, the deviation angles of the laser emission planes to the central line of the track (2) are x, the deflection angle of the left laser profile sensor (6) is beta 1, and the deflection angle of the right laser profile sensor (7) is beta 2.
Furthermore, the elevation angle between the laser emission line direction of the left front side laser displacement sensor (9) and the left rear side laser displacement sensor (11) and the horizontal plane A of the track (2) is theta 1, and the laser emission line direction is vertical to the central line x of the track (2); the elevation angles of the laser emission line directions of the right front side laser displacement sensor (10) and the right rear side laser displacement sensor (12) and the horizontal plane A of the track (2) are theta 2, and the laser emission line directions are perpendicular to the central line x of the track (2).
Furthermore, the distance between the wheel sensor (8) and the left front laser displacement sensor (9) and the distance between the wheel sensor and the left rear laser displacement sensor (11) are equal on the central line x of the track (2).
Compared with the prior art, the utility model discloses possess following beneficial effect: (1) the measurement accuracy is high, the measurement process can be automatically finished, manual operation is not needed on site, and errors caused by human factors are avoided; the measured data can be directly printed and checked or transmitted to an information system, so that the method is simple and clear, and has low requirement on the specialization degree of operators.
(2) The measurement is high-efficient, and measuring device can install in the high throat track department of train passing frequency, and whole measurement process is online through type, and the train need not to stop, surveys promptly and walks, can not produce the conflict with train maintenance or turning one's hair and repair the operation, has also promoted train maintenance application efficiency when improving measurement of efficiency by a wide margin.
Drawings
Fig. 1 is a schematic structural view of a high-precision wheel set equivalent taper on-line measuring device disclosed by the utility model;
fig. 2 is another view structure diagram of the high-precision wheel set equivalent taper on-line measuring device disclosed by the utility model;
fig. 3 is a schematic view of the measurement process of the high-precision wheel set equivalent taper on-line measuring device disclosed by the utility model;
fig. 4 is the utility model discloses a high accuracy wheel pair equivalent taper on-line measuring device's laser emission direction spatial position and angle schematic diagram.
Reference numerals: 1. a train wheel set to be tested; 2. a track; 3. a base; 4. briquetting; 5. a connecting shaft; 6. a left side laser profile sensor; 7. a right side laser profile sensor; 8. a wheel sensor; 9. a left front side laser displacement sensor; 10. a right front side laser displacement sensor; 11. a left rear laser displacement sensor; 12. and a right rear side laser displacement sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
As shown in fig. 1-4, a high-precision wheel set equivalent taper online measuring device comprises an H-shaped base 3 located on the inner side surface of a track 2, a pressing block 4, a connecting rod 401 located on the outer side surface of the track 2, a connecting shaft 5, a left laser profile sensor 6, a right laser profile sensor 7, a triggering device, a left front laser displacement sensor 9, a right front laser displacement sensor 10, a left rear laser displacement sensor 11 and a right rear laser displacement sensor 12, which are respectively fixed on two sides of the base 3; the base 3 is fixed relative to the rail 2 through the downward pressure of the pressing block 4, the base is respectively and fixedly connected with a left laser profile sensor 6 and a right laser profile sensor 7 on two sides of the connecting rod 401 through a connecting shaft 5 in an axisymmetric mode, and the triggering device is fixed in the middle of one side of the base 3.
All the sensors are calibrated by using a high-precision special measuring tool before being installed and fixed. The rail 2 is various steel rails used in the rail transit field, and the rail 2 is preferably a rail of a straight line section in the rail transit field.
Further, the triggering device is a wheel sensor 8, and when the wheel is detected, the measuring device is turned on, and when the train leaves, the measuring device is turned off.
Furthermore, the elevation angle between the laser emission plane of the left laser profile sensor 6 and the laser emission plane of the right laser profile sensor 7 and the horizontal plane a of the track 2 is α, the center line of the laser emission plane deviated to the track 2 is x, the deflection angle of the left laser profile sensor 6 is β 1, and the deflection angle of the right laser profile sensor 7 is β 2.
Furthermore, the elevation angle between the laser emission line direction of the left front side laser displacement sensor 9 and the left rear side laser displacement sensor 11 and the horizontal plane a of the track 2 is theta 1, and the laser emission line direction is perpendicular to the central line x of the track 2; the elevation angle between the laser emission line direction of the front right laser displacement sensor 10 and the rear right laser displacement sensor 12 and the horizontal plane a of the track 2 is θ 2, and the laser emission line direction is perpendicular to the center line x of the track 2.
Further, the wheel sensor 8 is located at the same distance from the front left laser displacement sensor 9 and the rear left laser displacement sensor 11 along the center line x of the rail 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a high accuracy wheel pair equivalent tapering on-line measuring device which characterized in that: the device comprises an H-shaped base (3) positioned on the inner side surface of a track (2), a pressing block (4), a connecting rod (401) positioned on the outer side surface of the track (2), a connecting shaft (5), a left laser profile sensor (6), a right laser profile sensor (7), a trigger device, a left front laser displacement sensor (9), a right front laser displacement sensor (10), a left rear laser displacement sensor (11) and a right rear laser displacement sensor (12) which are respectively fixed on two sides of the base (3); the base (3) is relatively fixed with the track (2) through the downward pressure of the pressing block (4), the base is respectively and fixedly connected with a left laser profile sensor (6) and a right laser profile sensor (7) on two sides of the connecting rod (401) through a connecting shaft (5) in an axisymmetric mode, and the trigger device is fixed in the middle of one side of the base (3).
2. The high-precision wheel set equivalent taper online measuring device according to claim 1, characterized in that: the trigger device is a wheel sensor (8), and when the wheel is detected, the measuring device is opened, and when the train leaves, the measuring device is closed.
3. The high-precision wheel set equivalent taper online measuring device according to claim 1, characterized in that: the elevation angles of the laser emission planes of the left laser contour sensor (6) and the right laser contour sensor (7) and the horizontal plane A of the track (2) are alpha, the central lines of the laser emission planes, which are all deflected to the track (2), are x, the deflection angle of the left laser contour sensor (6) is beta 1, and the deflection angle of the right laser contour sensor (7) is beta 2.
4. The high-precision wheel set equivalent taper online measuring device according to claim 1, characterized in that: the elevation angle between the laser emission line direction of the left front side laser displacement sensor (9) and the left rear side laser displacement sensor (11) and the horizontal plane A of the track (2) is theta 1, and the laser emission line direction is vertical to the central line x of the track (2); the elevation angles of the laser emission line directions of the right front side laser displacement sensor (10) and the right rear side laser displacement sensor (12) and the horizontal plane A of the track (2) are theta 2, and the laser emission line directions are perpendicular to the central line x of the track (2).
5. The high-precision wheel set equivalent taper online measuring device according to claim 2, characterized in that: and the distance between the wheel sensor (8) and the left front side laser displacement sensor (9) and the distance between the wheel sensor and the left rear side laser displacement sensor (11) are equal along the central line x of the track (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013523.1U CN214728841U (en) | 2021-05-13 | 2021-05-13 | High-precision wheel set equivalent taper on-line measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013523.1U CN214728841U (en) | 2021-05-13 | 2021-05-13 | High-precision wheel set equivalent taper on-line measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN214728841U true CN214728841U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121013523.1U Active CN214728841U (en) | 2021-05-13 | 2021-05-13 | High-precision wheel set equivalent taper on-line measuring device |
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| Country | Link |
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| CN (1) | CN214728841U (en) |
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2021
- 2021-05-13 CN CN202121013523.1U patent/CN214728841U/en active Active
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