CN213619768U - Online dynamic measurement device for wheel rim parameters of rail transit vehicle - Google Patents
Online dynamic measurement device for wheel rim parameters of rail transit vehicle Download PDFInfo
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Abstract
The utility model discloses an online dynamic measurement device of track traffic wheel rim parameter belongs to track traffic technical field. The utility model discloses an online dynamic measurement device of rail transit wheel rim parameter, including installing in the outside laser displacement sensor in the track outside and installing in the inboard laser displacement sensor of track inboard, wherein the height that the sensing head of outside laser displacement sensor exceeds the track top surface is H1The horizontal distance from the center of the rail top is L1The angle between the probe beam and the direction perpendicular to the track is A1And the angle with the direction parallel to the track is A2(ii) a The inner side laser displacementThe height of the sensing head of the sensor below the top surface of the rail is H2The horizontal distance from the center of the rail top is L2And the included angle with the direction perpendicular to the track is B1. Adopt the technical scheme of the utility model the detection precision that can effectively improve wheel rim parameter, and its detection efficiency is higher.
Description
Technical Field
The utility model belongs to the technical field of the rail transit, more specifically say, relate to an online dynamic measurement device of rail transit wheel rim parameter.
Background
With the rapid development of rail transit in China, the safety problem of train online operation is increasingly obvious. The wheel set is the part of the train contacting with the steel rail. The wheel set ensures the running and steering of the locomotive on the rail, bears all static and dynamic loads from the train, transmits the static and dynamic loads to the rail and transmits the loads generated by the unsmooth line to various parts of the train. In addition, the drive and braking of the train vehicle are also effected via the wheel sets. Therefore, the condition of the wheel set is directly related to the running quality and safety of the train, and the real-time monitoring of the size parameters is an important measure for guaranteeing the safe running of the train.
In the traditional technology, the wheel rim parameters are usually measured by adopting manual measurement and static measurement methods, the detection precision is poor, and the detection efficiency is low, so that the research and development of an online dynamic detection technology are promoted. For the wheel set size online detection technology, the early method is to measure by using a CCD-based image measurement technology, but the system structure arrangement of the method is complicated and is greatly influenced by vibration and environment. With the development of sensor technology, laser ranging is more and more widely applied, and many researchers begin to apply a laser displacement sensor to online dynamic detection of wheel rim parameters.
For example, application No. 201610365458.6 discloses an online detection method and system for train wheelset size, the method obtains the rim vertex circle diameter and the vehicle speed through a laser correlation photoelectric switch, locates the rim lowest point and the height to the ground through an eddy current sensor, and obtains the wheel tread contour line according to the points on the wheel detected by an inner and outer 1D laser displacement sensor, thereby obtaining the rim height, the rim thickness and the wheel diameter, but the detection precision of the application is to be further improved.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to overcome and adopt current method to measure the not enough of existence to wheel rim parameter, provide an online dynamic measurement device of track traffic wheel rim parameter. Adopt the technical scheme of the utility model the detection precision that can effectively improve wheel rim parameter, and its detection efficiency is higher.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses an online dynamic measurement device of rail transit wheel rim parameter, including installing in the outside laser displacement sensor in the track outside and installing in the inboard laser displacement sensor of track inboard, wherein outside laser displacement sensor is used for gathering the outline line of wheel rim summit to wheel nominal roll circle department, and the height that its sensing head exceeds the track top surface is H1The horizontal distance from the center of the rail top is L1The angle between the probe beam and the direction perpendicular to the track is A1And the angle with the direction parallel to the track is A2(ii) a The inner side laser displacement sensor is used for collecting contour lines from the inner rim surface to the outer side of the rim of the wheel, and the height of a sensing head of the inner side laser displacement sensor, which is lower than the top surface of the track, is H2The horizontal distance from the center of the rail top is L2And the included angle with the direction perpendicular to the track is B1。
Furthermore, the outer side laser displacement sensor and the inner side laser displacement sensor are both two-dimensional laser displacement sensors, and the distance between sensing heads of the two-dimensional laser displacement sensors along the direction parallel to the track is L3(ii) a And the outer side laser displacement sensor and the inner side laser displacement sensor are symmetrically arranged on the two tracks.
Further, the mounting positions of the two laser displacement sensors satisfy the following formula:
tanA2＝(R-H1)/L3
r is the radius of the wheel to be measured, H1 takes a positive value when the sensing head is higher than the rail top, and takes a negative value otherwise.
Furthermore, the outer side laser displacement sensor and the inner side laser displacement sensor are both installed through a sensor installation mechanism, the sensor installation mechanism comprises a bottom plate, an inner side installation plate and an outer side installation plate, wherein the bottom plate is fixedly installed at the bottom of the track, the inner side installation plate and the outer side installation plate are both fixedly connected with the bottom plate, and the installation angles of the inner side installation plate and the outer side installation plate correspond to the installation angles of the inner side laser displacement sensor and the outer side laser displacement sensor respectively.
Furthermore, a supporting plate is installed on the bottom plate and fixedly connected with the adjusting plate, the outer side installation plate is installed and supported on the adjusting plate, and a supporting surface of the supporting plate is processed into a two-dimensional inclined surface corresponding to the installation angle of the outer side laser displacement sensor.
Furthermore, the outer side mounting plate and the adjusting plate are rotatably connected through a bearing and are fixed through bolts.
Furthermore, a self-aligning bearing seat is arranged on the adjusting plate, and a self-aligning bearing which is in running fit with the self-aligning bearing seat is correspondingly arranged on the outer mounting plate; and a fixing hole and a fine-tuning threaded hole are processed on the outer mounting plate, wherein the inner diameter of the fixing hole is larger than the diameter of a fixing bolt in the fixing hole.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses an online dynamic measurement device of rail transit wheel rim parameter is through installing a laser displacement sensor respectively in the track inboard and the outside to optimize its installation angle, thereby can carry out the on-line measuring to the rim height of wheel, the rim is thick, rim integrated value and the wheel pair inboard distance, and it detects the precision higher, and detection efficiency is fast.
(2) The utility model discloses an online dynamic measurement device of rail transit wheel rim parameter, through two laser displacement sensor's installation to its data collection draws, rotates, concatenation and integration processing can obtain the profile curve of the wheel that awaits measuring, thereby can carry out the on-line measuring to wheel rim height, rim thickness, rim integrated value and wheel pair inboard distance, and its detection precision obtains effectively improving for current detection method.
(3) The utility model discloses an online dynamic measurement device of rail transit wheel rim parameter carries out optimal design through the installing support to laser displacement sensor to be convenient for adjust laser displacement sensor's installation angle, and its adjustment easy operation, the adjustment precision is high.
Drawings
Fig. 1 is a schematic structural view of the on-line dynamic measuring device for the rim parameters of the rail transit vehicle wheel of the present invention;
fig. 2 is a schematic diagram of the distribution structure of the laser displacement sensor of the present invention;
fig. 3 is a distribution top view of the laser displacement sensor of the present invention;
FIG. 4 is a schematic diagram of a train wheel rim parameter measurement point;
fig. 5 is a schematic structural view of the outer mounting plate of the present invention;
FIG. 6 is a graph of two laser displacement sensors;
FIG. 7 is a graph after rotation;
fig. 8 is a contour curve after splicing integration.
The reference numbers in the figures illustrate:
1. a base plate; 101. briquetting; 102. fastening a bolt; 2. a bottom plate reinforcing rib; 3. an inner side mounting plate; 4. a support plate; 5. reinforcing ribs of the supporting plate; 6. a self-aligning bearing seat; 7. an adjusting plate; 8. an outer mounting plate; 801. a self-aligning bearing hole; 802. a fixing hole; 803. fine-tuning the threaded hole; 9. an outer laser displacement sensor; 10. an inner laser displacement sensor; 11. a track.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the present invention with reference to the following examples.
Example 1
With reference to fig. 2 and 3, the device for dynamically measuring rim parameters of a wheel for rail transit vehicles of the present embodiment includes an outer laser displacement sensor 9 installed on the outer side of a rail 11 and an inner laser displacement sensor 10 installed on the inner side of the rail 11, both of which are two-dimensional laser displacement sensors, wherein the outer laser displacement sensor 9 is used for collecting a contour line from a rim vertex of the wheel to a wheel nominal rolling circle, and a sensing head of the outer laser displacement sensor is higher than a top surface of the rail 11 by a height H1The horizontal distance from the center of the rail top is L1The angle between the probe beam and the direction perpendicular to the track is A1And the angle with the direction parallel to the track is A2(ii) a The inner side laser displacement sensor 10 is used for collecting contour lines from the inner rim surface to the outer side of the rim of the wheel, and the height of a sensing head of the inner side laser displacement sensor, which is lower than the top surface of the rail 11, is H2The horizontal distance from the center of the rail top is L2And the included angle with the direction perpendicular to the track is B1. The distance between the sensing heads of the outer laser displacement sensor 9 and the inner laser displacement sensor 10 in the direction parallel to the track 11 is L3。
During specific installation, the installation positions of the two laser displacement sensors meet the following requirements: tan A2＝(R-H1)/L3R is the radius of the wheel to be measured, H1 is positive when the sensing head is higher than the rail top, and is negative otherwise. While other parameters such as A1, L1、L2、B1And H2The selection of the displacement sensor can meet the requirement of the measurement range of the two laser displacement sensors (the outer laser displacement sensor 9 is used for collecting the contour line from the top point of the wheel rim to the nominal rolling circle of the wheel, and the inner laser displacement sensor 10 is used for collecting the contour line from the inner rim surface of the wheel to the outer side of the wheel rim).
Example 2
The structure of the online dynamic measuring device for the rim parameters of the rail transit vehicle wheel is the same as that of embodiment 1, and further, the outer side laser displacement sensor 9 and the inner side laser displacement sensor 10 are symmetrically arranged on two rails 11, so that the rim parameters of the wheels on two sides can be measured respectively.
Example 3
The structure of the online dynamic measurement device for the wheel rim parameters of the rail transit vehicle is basically the same as that of the embodiment 2, and the online dynamic measurement device mainly comprises the following components: in this embodiment, the outer laser displacement sensor 9 and the inner laser displacement sensor 10 are both mounted through a sensor mounting mechanism, as shown in fig. 1, the sensor mounting mechanism includes a bottom plate 1, an inner mounting plate 3 and an outer mounting plate 8, wherein the bottom plate 1 is fixedly mounted at the bottom of a track 11, the inner mounting plate 3 and the outer mounting plate 8 are both fixedly connected to the bottom plate 1, and mounting angles of the inner mounting plate 3 and the outer mounting plate 8 respectively correspond to mounting angles of the inner laser displacement sensor 10 and the outer laser displacement sensor 9. The pressing block 101 is installed on the bottom plate 1 of the embodiment through the fastening bolt 102, the pressing block 101 is pressed on the bottom plates on two sides of the rail, and the head of the pressing block 101 is processed into an inclined plane matched with the inclination angle of the rail bottom, so that the firmness of the installation of the bottom plate is ensured.
Example 4
The structure of the online dynamic measurement device for the wheel rim parameters of the rail transit vehicle is basically the same as that of embodiment 3, and the difference is mainly as follows: the bottom plate 1 is provided with a supporting plate 4, the supporting plate 4 is fixedly connected with an adjusting plate 7, an outer side mounting plate 8 is mounted and supported on the adjusting plate 7, and a supporting surface of the supporting plate 4 is processed into a two-dimensional inclined surface corresponding to the mounting angle of the outer side laser displacement sensor 9. The installation angle of the outer side laser displacement sensor 9 can be conveniently adjusted to a required position through the arrangement of the adjusting plate, so that the requirement of wheel parameter detection is met.
Example 5
The structure of the online dynamic measurement device for the wheel rim parameters of the rail transit vehicle is basically the same as that of the embodiment 4, and the online dynamic measurement device mainly comprises the following components: the outer side mounting plate 8 and the adjusting plate 7 are rotatably connected through a bearing and fixed through bolts. Specifically, be equipped with self-aligning bearing seat 6 on the regulating plate 7 in this embodiment, correspond on the outside mounting panel 8 and install the self-aligning bearing (install in the self-aligning bearing hole on the outside mounting panel 8) with self-aligning bearing seat 6 normal running fit, the self-aligning bearing inserts in the inner circle of self-aligning bearing seat 6 to can adjust position and angle between outside mounting panel 8 and the regulating plate 7 at will. As shown in fig. 5, the outer mounting plate 8 is formed with a fixing hole 802 and a fine adjustment screw hole 803, wherein the inner diameter of the fixing hole is larger than the diameter of the fixing bolt in the fixing hole for fine adjustment of the sensor mounting angle. After self-aligning bearing of outside mounting panel 8 inserted self-aligning bearing frame 6, twist the fine setting bolt in fine setting screw hole 803, when its end passed fine setting screw hole 803 top tight regulating plate 7, continue to screw up the fine setting bolt, can make outside mounting panel 8 take place relative rotation for regulating plate 7, thereby finely tune the inclination of outside mounting panel 8, twist fixing bolt in fixed orifices 802 with outside mounting panel 8 and regulating plate 7 fastening connection after the regulation is accomplished, thereby the accuracy of the inclination of outside laser displacement sensor 9 has been guaranteed. In order to ensure the stability of the structure, a bottom plate reinforcing rib 2 is arranged between the bottom plate and the support plate 4, and a support plate reinforcing rib 5 is arranged between the support plate 4 and the adjusting plate 7.
Example 6
The method for dynamically measuring the parameters of the wheel rim of the rail transit vehicle on line (a schematic diagram of a measurement base point of each parameter is shown in fig. 4, where Qr is a comprehensive value of the wheel rim, Sh is a height of the wheel rim, and Sd is a thickness of the wheel rim) in the embodiment adopts the measuring device in the embodiment 5, and includes the following steps:
step one, collecting wheel contour lines
When a wheel passes by, controlling two 2D laser displacement sensors to simultaneously acquire the tread contour of the wheel, wherein an inner side laser displacement sensor 10 acquires the contour line from the inner rim surface of the wheel to the outer side of the wheel rim, and an outer side laser displacement sensor 9 acquires the contour line from the top point of the wheel rim to a nominal rolling circle; when the profile curves are collected, the two laser displacement sensors continuously collect all the profile curves of the wheel passing by at a certain frequency (the frequency can be the same or different), and the collected data is the original profile curve data of the wheel. In this embodiment, the wheel to be measured has a diameter D of 770-840mm and H1＝54mm，L1＝L2＝167.5mm，B1＝53°，H2＝151mm，A2＝45.694°，L3＝340.161mm，A1＝14.979°。
Step two, contour line extraction
To accurately measure the rim parameters, the two profile curves that pass through the wheel normal must be selected from a plurality of raw profile curves. When the inner laser displacement sensor 10 detects that the top point of the wheel rim is at the lowest point, the profile line can be considered to pass through the normal line of the wheel. However, it is difficult to find the contour line passing through the normal line from the contour lines measured by the outer laser displacement sensor 9, and theoretical verification proves that when the contour line measured by the outer laser displacement sensor 9 is not greatly deviated from the normal line, the influence on the measurement accuracy of the edge parameters is small, so that the selected contour line measured by the outer laser displacement sensor 9 is allowed to have a certain deviation amount (as shown in fig. 3, the deviation amount, namely the distance Δ r of the detection light beam deviated from the center of the wheel is less than 5% of the wheel diameter) relative to the wheel normal line. On the basis, the embodiment designs the installation parameters of the two laser displacement sensors, and each installation parameter meets the requirements of tanA on the basis of meeting the measurement range of the laser displacement sensors2＝(R-H1)/L3It is ensured that when the inner laser displacement sensor 10 measures the wheel normal, the profile curve measured by the outer laser displacement sensor 9 is within the allowable deviation range near the wheel normal regardless of the wheel diameter and the rim height.
Therefore, the contour lines obtained by the two sensors are extracted by the following method: and selecting the profile line which is measured by the inner laser displacement sensor 10 and passes through the normal line of the wheel rim, namely the profile curve when the wheel rim is at the lowest point in all the profile lines, and the profile curve which is correspondingly measured by the outer laser displacement sensor 9 at the same moment.
Step three, extracting effective data
And filtering invalid curve data in the selected profile curve so as to extract valid data.
As shown in fig. 6, the curve (b) is a profile curve measured by the outer laser displacement sensor 9, and the curve (a) is a profile curve measured by the inner laser displacement sensor 10, but there may be some invalid data in the test process, for example, the profile curve measured by the inner laser displacement sensor 10 may include a profile of a portion of a steel rail, and it can be seen that the curve (c) is data that is obviously invalid, and the invalid data is filtered and removed.
Step four, rotating the profile curve
And (3) rotating the two processed contour curves in the clockwise direction according to the following formula:
X＝(x1-x0)cosα-(y1-y0)sinα+x0
Y＝(x1-x0)sinα+(y1-y0)cosα+y0
in the formula: (X, Y) is the coordinates of the curve after rotation, (X)1，y1) As coordinates of the curve before rotation, (x)0，y0) Is the coordinate of the center of rotation, takes the (0, 0) point, and α is the rotation angle, which depends on the arrangement of the 2D laser displacement sensor and the actual situation.
As can be seen from fig. 6, the profile curve measured by the outer laser displacement sensor 9 needs to be rotated clockwise by a certain angle, and the rotation angle α is (a)1-90) degrees. The inside laser displacement sensor 10 also rotates clockwise by a certain angle, which theoretically should be (B1-90), however, since the steel rails on both sides are not completely horizontal, the two wheels of the same wheel pair are not in the same horizontal plane, and the wheels and the axle bear all the weight of the train, the axle is bent and deformed. The above factors may cause the inner rim surface of the wheel to be inclined at an angle rather than perpendicular to the horizontal plane, so that the rotation angle of the profile curve measured by the inner laser displacement sensor 10 is no longer (B1-90) degrees, and the actual rotation angle may vary from wheel to wheel. However, the inner rim surface section in the profile curve measured by the inner laser displacement sensor 10 is still a straight line (straight line section in curve (a) in fig. 6), so the rotation angle α is calculated according to the linear equation in this embodiment.
The inclination angle b (the rotation angle of the straight line segment of the inner rim surface to the horizontal) of the straight line segment of the inner rim surface of the wheel in the profile curve measured by the inner laser displacement sensor 10 can be calculated by the following method: the inclination angle can be calculated by taking any two points on the inclined straight line corresponding to the inner rim segment on the curve (a) (for example, two end points (x1, y1) and (xn, yn)) on the inclined straight line:
taking points for calculation for multiple times to obtain a series of angle tangent values tanb1, tanb2, tanb3, … … and tanbk, and averaging the tangent values to obtain:
tan b＝(tan b1+tan b2+tan b3+......+tan bk)/k
therefore, when the rotation angle alpha when the inner rim surface segment is linearly rotated to be vertical is (b-90 degrees), the rotation formula is as follows:
fig. 7 shows two curves obtained by rotating the curves of fig. 6 after filtering the invalid data according to the above rotation angles, where curve (a) is a curve obtained by rotating the inner laser displacement sensor 10, and curve (b) is a curve obtained by rotating the outer laser displacement sensor 9.
Step five, curve splicing and integration
The end points of the profile curve measured by the inner side laser displacement sensor 10 are used as characteristic points, the rotated curves measured by the two sensors are spliced, the slope at the end points is relatively large, and the influence on the measurement of the edge parameters is small. And after splicing, integrating the X coordinates and the Y coordinates of the two curves again, and taking the average value of the X coordinates of the inner rim surface because the actually measured X coordinates of all points on the inner rim surface are inconsistent during integration, integrating the average value into 0, and obtaining a profile curve after integration as shown in figure 8.
The curve splicing method specifically comprises the following steps: firstly, the maximum value a of the curve after the rotation of the profile measured by the inner side laser displacement sensor 10 is obtained1And endpoint value a2Then, the maximum value b of the curve after the rotation of the profile measured by the outer laser displacement sensor 9 is obtained1And b is found in the curve of the rotating contour line measured by the outer laser displacement sensor 92＝b1-(a1-a2) If there is no point in the curve exactly corresponding to b, since the measured curve is a discontinuous point2Corresponding point, then find b2Coordinates (X) of two points on the left and right1，Y1) And (X)2，Y2) (Y coordinate just greater than b)2And just less than b2Coordinates of two points of (a) and b is calculated by the following formula2X-coordinate of (a):
with (X)b2，b2) And splicing the points to obtain a spliced contour line.
Step six, calculating rim parameters
After the contour curve is obtained, three parameters of the rim height, the rim thickness and the rim comprehensive value are calculated according to the measurement standard specified in TB/T449-2003 locomotive vehicle wheel rim tread profile. If there is no measured value at the measured point of a certain rim parameter, the following formula is adopted for approximate calculation:
when the Y coordinate of a certain measurement point is known and the X coordinate of the point is obtained, the approximation calculation is performed by the formula (1), where Y1 and Y2 are the Y coordinate values of two points which are greater than and less than the Y coordinate and closest to the Y coordinate, and (X1, Y1) and (X2, Y2) are the coordinates of the corresponding two points. When the X coordinate of a certain measurement point is known, the Y coordinate of the point is obtained by performing an approximate calculation using equation (2), where X1 and X2 are X coordinate values of two points which are greater than and less than the X coordinate and closest to the X coordinate, respectively, (X1, Y1), (X2, Y2) are coordinates of the corresponding two points.
In addition, the contour curve measured by the inner side laser displacement sensor 10 is rotated according to the angle b, the rotation center is (0, 0) point, the horizontal contour curve of the inner rim is obtained, and further the distance L1 from the inner side laser displacement sensor 10 to the inner rim surface of the wheel is obtained; similarly, the distance L2 from the inner side laser displacement sensor 10 of the steel rail on the other side to the inner rim surface of the wheel can be obtained; if the installation distance between the two laser displacement sensors is L, the distance between the inner sides of the wheel sets is L + L1+ L2.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides an online dynamic measurement device of track traffic wheel rim parameter which characterized in that: the device comprises an outer side laser displacement sensor (9) arranged on the outer side of a track (11) and an inner side laser displacement sensor (10) arranged on the inner side of the track (11), wherein the outer side laser displacement sensor (9) is used for collecting a contour line from the top point of a wheel rim to a wheel nominal rolling circle, and the height of a sensing head of the outer side laser displacement sensor above the top surface of the track (11) is H1The horizontal distance from the center of the rail top is L1The angle between the probe beam and the direction perpendicular to the track is A1And the angle with the direction parallel to the track is A2(ii) a The inner side laser displacement sensor (10) is used for collecting contour lines from the inner rim surface to the outer side of the rim, and the height of a sensing head of the inner side laser displacement sensor, which is lower than the top surface of the rail (11), is H2The horizontal distance from the center of the rail top is L2And the included angle with the direction perpendicular to the track is B1。
2. The on-line dynamic measurement device for the rim parameters of the rail transit vehicle wheel as claimed in claim 1, wherein: the outer side laser displacement sensor (9) and the inner side laser displacement sensor (10) are two-dimensional laser displacement sensors, and the distance between sensing heads of the two-dimensional laser displacement sensors along the direction parallel to the track (11) is L3(ii) a The mounting positions of the two laser displacement sensors satisfy the following formula:
tanA2＝(R-H1)/L3
r is the radius of the wheel to be measured, H1 takes a positive value when the sensing head is higher than the rail top, and takes a negative value otherwise.
3. The on-line dynamic measuring device for the rim parameters of the rail transit vehicle wheel as claimed in claim 1 or 2, wherein: two equal symmetry in track (11) are installed outside laser displacement sensor (9) and inboard laser displacement sensor (10), and outside laser displacement sensor (9) and inboard laser displacement sensor (10) all install through sensor installation mechanism, this sensor installation mechanism includes bottom plate (1), inboard mounting panel (3) and outside mounting panel (8), wherein bottom plate (1) fixed mounting in track (11) bottom, inboard mounting panel (3) and outside mounting panel (8) all link to each other with bottom plate (1) is fixed, and the installation angle of inboard mounting panel (3) and outside mounting panel (8) is corresponding with inboard laser displacement sensor (10), the installation angle of outside laser displacement sensor (9) respectively.
4. The on-line dynamic measurement device for the rim parameters of the rail transit vehicle wheel as claimed in claim 3, wherein: install backup pad (4) on bottom plate (1), backup pad (4) and regulating plate (7) are fixed to be linked to each other, and outside mounting panel (8) erection bracing is on regulating plate (7), and the holding surface processing of backup pad (4) is the two-dimensional inclined plane corresponding with the installation angle of outside laser displacement sensor (9).
5. The on-line dynamic measurement device for the rim parameters of the rail transit vehicle wheel as claimed in claim 4, wherein: the outer side mounting plate (8) is rotatably connected with the adjusting plate (7) through a bearing and fixed through bolts.
6. The on-line dynamic measurement device for the rim parameters of the rail transit vehicle wheel as claimed in claim 5, wherein: an aligning bearing seat (6) is arranged on the adjusting plate (7), and an aligning bearing which is in running fit with the aligning bearing seat (6) is correspondingly arranged on the outer mounting plate (8); and a fixing hole (802) and a fine-tuning threaded hole (803) are processed on the outer side mounting plate (8), wherein the inner diameter of the fixing hole is larger than the diameter of a fixing bolt in the fixing hole.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383558A (en) * | 2018-12-09 | 2019-02-26 | 马鞍山市雷狮轨道交通装备有限公司 | A kind of rail vehicle wheel rim parameter on-line dynamic measurement device and measurement method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109383558A (en) * | 2018-12-09 | 2019-02-26 | 马鞍山市雷狮轨道交通装备有限公司 | A kind of rail vehicle wheel rim parameter on-line dynamic measurement device and measurement method |
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