CN205280000U - Portable train tire tread profile detection device - Google Patents
Portable train tire tread profile detection device Download PDFInfo
- Publication number
- CN205280000U CN205280000U CN201521081849.2U CN201521081849U CN205280000U CN 205280000 U CN205280000 U CN 205280000U CN 201521081849 U CN201521081849 U CN 201521081849U CN 205280000 U CN205280000 U CN 205280000U
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- nut
- sensor
- profile
- motion
- guide
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Abstract
The utility model discloses a portable train tire tread profile detection device. Utilize the utility model discloses can realize the high accuracy rapid survey of tire tread wearing and tearing. The utility model discloses a following technical scheme realizes: utilize step motor drive screw, make the nut move along wheel axis orientation, V type ball guide rail and profile modeling motion are passed through in the motion of nut, drive laser displacement sensor and be dimensional movement in the plane of crossing the wheel shaft, and profile of surface is stepped on to the standard of its movement track profile modeling wheel to the realization is measured the point by point scanning of stepping on profile of surface. Owing to realized the profile modeling measurement, only need adopt the sensor that measuring range is little, the whole profile of surface of stepping on can be satisfied and the requirement is measured, its measurement accuracy and resolution ratio are higher, and instrument overall dimension is littleer. Take sensor slope installation design, solved and stepped on the place that the profile of surface slope of curve is big, because of measuring beam and too big by measurement station normal line contained angle, cause measurement accuracy to reduce, even unable measuring problem.
Description
Technical field
This utility model relates to a kind of mancarried device for train wheel tread contour detecting, can Quick Test Vehicle wheel tread wear condition, to adapt to the Development of High Speed Railway needs to wheel tread detecting instrument.
Background technology
Development along with high-speed railway, train speed increases substantially, suddenly accelerate, slow down, the operation such as brake hard is more and more frequent, cause the increased wear between wheel and rail, therefore need wheel tread abrasion condition is carried out regular detection, therefore, the demand of the high wheel tread detecting instrument of miniaturization, intellectuality, accuracy of detection and detection efficiency is very urgent.
At present, wheel tread wear detecting method mainly has two classes: one is use contact measurement instrument hand dipping, and detection efficiency is low, error is bigger. Two is non-cpntact measurement (optical scanning and optical imagery) method, measures efficiency high, it may be achieved automatically detect. Wherein, the measuring method of laser displacement sensor is adopted to have the potential of miniaturization, intellectuality, raising certainty of measurement and efficiency most. But in existing measurement instrument, laser displacement sensor is with rectilinear motion metering system, the sensor that effective range is big must be adopted, cause Measurement Resolution low (Measurement Resolution of laser displacement sensor reduces along with the increase of its measurement scope). And, the mounting means of sensor is the axis (being namely perpendicular to the measurement direction of motion of sensor) making the outgoing beam of sensor be perpendicular to tested wheel, cause in the place that tread contour curve slope is big, angle between measuring beam and measured point normal is excessive, measuring beam projects the hot spot of measured surface and seriously scatters, cause certainty of measurement to significantly reduce, even occur measuring distortion. This utility model aims to solve the problem that the problems referred to above, manufactures and designs the wheel tread detecting instrument of Portable intelligent.
Utility model content
This utility model provides a kind of portable train wheel tread detecting device design. Silk-line fabric technology is combined by the program with laser displacement sensor, has both reduced the requirement to sensor measurement scope, solves again the problem in the low even distortion of the local certainty of measurement that wheel tread contour curve slope is big.
The technical scheme that this utility model is taked is:
A kind of portable train wheel tread contour detecting device, mainly includes laser displacement sensor and installing rack, motor and controller, ball guide screw nat, the forming movement mechanism of profiling wheel standards tread profile, V-type spherical guide, single-chip microcomputer and measures control and display; It is characterized in that: step motor drive ball-screw, nut is for linear motion; The V-type spherical guide that moves through of nut transmits the force to sensor mount, installing rack is under the effect of forming movement mechanism, while moving with nut, can move along being perpendicular to the direction that nut moves so that the movement locus profiling wheel standards tread profile of the sensor being mounted thereon; Single-chip microcomputer gathers sensor output signal, processes through data and obtains tread profile measurements.
Further, forming movement mechanism therein is made up of standard tread profile tracer guide rail, V-type spherical guide, sensor mount and bearing; It is characterized in that: between V-type spherical guide is installed on and nut is fixed together slide block and sensor mount, impart power to sensor mount; Two bearings being packed in installing rack both sides roll along profiling guide rail, it is achieved the silk-line fabric motion of sensor.
Further, laser displacement sensor therein and the nut direction of motion tilt certain angle �� and install, and make the outgoing beam oblique incidence of sensor to measured surface.
Further, wherein motion drive part is made up of composite stepper motor, shaft coupling, ball-screw, nut, slide block, bearing block, restraint guide rod; It is characterized in that: shaft coupling meets zero back clearance; Restraint guide rod is slidably matched with the unthreaded hole on slide block, and restriction nut can only move linearly.
Further, wherein forming movement mechanism, motion driving mechanism installation based on pillar panel; Pillar panel side is fixed with one block of flat Magnet, sucks in wheel side-locating face as horizontal survey datum level during measurement; Pillar panel side is further fixed on two positioning cylinders, is close to wheel rim during measurement, makees vertical direction location.
Further, wherein profiling rail sections is made up of two identical guide rails; It is characterized in that: two profiling guide rails are used simultaneously as the major support members of apparatus structure, reduce physical dimension and weight.
(1) forming movement mechanism is made up of slide block, V-type spherical guide, sensor mount, bearing and the tread profile tracer guide rail being connected with nut. V-type spherical guide is installed between slide block and sensor mount, imparts power to sensor mount; Two bearings being packed in installing rack both sides roll along profiling guide rail, it is achieved the forming movement of installing rack, and the sensor that only effective range need to be adopted only small can realize gamut and measure.
(2) laser displacement sensor and the nut direction of motion (tested vechicle wheel axis direction) tilt certain angle �� installation, make the outgoing beam oblique incidence of sensor to measured surface, to solve in the big place of tread contour curve slope, certainty of measurement reduces, the problem even cannot measured.
(3) motion drive part is made up of composite stepper motor, shaft coupling, ball-screw, nut, slide block, bearing block, restraint guide rod; Shaft coupling meets zero back clearance, and restraint guide rod is slidably matched with the unthreaded hole on slide block, and restriction nut can only move linearly.
(4) for guaranteeing that apparatus structure is compact and globality strong, the installation of forming movement mechanism and motion driving mechanism is based on pillar panel; Profiling rail sections is made up of two identical guide rails, and the two profiling guide rail is used as the major support members of this apparatus structure simultaneously, reduces physical dimension and weight.
(5) pillar panel side is fixed with one block of flat Magnet, sucks in wheel side-locating face as horizontal survey datum level during measurement; Pillar panel side is further fixed on two positioning cylinders, is close to wheel rim during measurement, makees vertical direction location. This structural design makes apparatus structure compact, and globality is strong.
(6) adopt embedded design, single-chip microcomputer gather sensor output signal, process through data and obtain tread profile measurements, and show output or storage.
The beneficial effects of the utility model:
(1) due to the measurement movement locus profiling wheel standards tread profile of laser displacement sensor, therefore, only effective range little (�� 5mm) sensor need to be adopted can to realize the detection of whole wheel tread profile, not only certainty of measurement and resolution improve, and structure of the detecting device is more compact, light, portable.
(2) take that laser displacement sensor and the nut direction of motion (tested vechicle wheel axis direction) are tilted certain angle �� to install, solve in the big place of tread contour curve slope, occur that incident beam and measured point normal angle are excessive, the hot spot that incident beam projects measured surface is caused seriously to scatter, certainty of measurement is caused to reduce, the problem even cannot measured.
(3) adopt V-type spherical guide can reduce the frictional force produced in the forming movement process impact on screw nut driven to greatest extent, move light.
(4) adopt ball-screw nut transmission, not only can reduce leading screw abrasion, and required driving torque is little, can be selected for micro-step motor and drive, reduce device overall dimensions.
(5) the structural design globality of device is strong, and compact in design can reduce device overall dimensions and weight.
Accompanying drawing illustrates:
Fig. 1 is overall structure front view of the present utility model;
Fig. 2 is the Section A-A sectional view in Fig. 1;
Fig. 3 is overall structure top view of the present utility model;
Fig. 4 is the section B-B sectional view in Fig. 2.
Detailed description of the invention
This utility model is further illustrated below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, motor 1 is installed on supporting seat 2, drives leading screw 4 by shaft coupling 3; Nut 5 and slide block 6 are fixed together, and the unthreaded hole on slide block 6 and restraint guide rod 7 are slidably matched, and restriction nut can only be for linear motion; Equipped with V-type spherical guide 9 and 10 between the both sides of slide block 6 and the left and right pillar medial surface of sensor mount 8, installing rack 8 is made to move up and down; The left and right pillar lateral surface of installing rack 8 is respectively provided with bearing 11 and 12; Two bearings roll along profiling guide rail 13 and 14 respectively. When slide block 6 (being fixed together with nut 5) is for linear motion, sensor mount 8 is transmitted the force to by V-type spherical guide 9 and 10, two bearings is rolled along profiling guide rail 13 and 14 respectively, so that installing rack 8 is while for linear motion with slide block, move along being perpendicular to the direction that nut moves again, it is achieved the profiling to wheel standards tread profile.
Forming movement mechanism, motion driving mechanism installation be based on pillar panel 15. Pillar panel side is fixed with one block of flat Magnet 16, sucks in wheel side-locating face as horizontal survey datum level during measurement; Two positioning cylinders 17 and 18 are also fixed in pillar panel side, are close to wheel rim during measurement, make vertical direction location. Motor supporting base 2 is connected with pillar panel; Two profiling guide rails are connected with pillar panel symmetrically, as the major support members of apparatus structure so that compact conformation, light and handy, and globality is strong. Laser displacement sensor 19 is arranged on sensor bracket 20, and bracket 20 is fixed on sensor mount 8 again.
Claims (6)
1. a portable train wheel tread contour detecting device, mainly includes laser displacement sensor and installing rack, motor and controller, ball guide screw nat, the forming movement mechanism of profiling wheel standards tread profile, V-type spherical guide, single-chip microcomputer and measures control and display; It is characterized in that: step motor drive ball-screw, nut is for linear motion; The V-type spherical guide that moves through of nut transmits the force to sensor mount, installing rack is under the effect of forming movement mechanism, while moving with nut, can move along being perpendicular to the direction that nut moves so that the movement locus profiling wheel standards tread profile of the sensor being mounted thereon; Single-chip microcomputer gathers sensor output signal, processes through data and obtains tread profile measurements.
2. portable train wheel tread contour detecting device according to claim 1, forming movement mechanism therein is made up of standard tread profile tracer guide rail, V-type spherical guide, sensor mount and bearing; It is characterized in that: between V-type spherical guide is installed on and nut is fixed together slide block and sensor mount, impart power to sensor mount; Two bearings being packed in installing rack both sides roll along profiling guide rail, it is achieved the silk-line fabric motion of sensor.
3. portable train wheel tread contour detecting device according to claim 1, laser displacement sensor therein and the nut direction of motion tilt certain angle �� and install, and make the outgoing beam oblique incidence of sensor to measured surface.
4. portable train wheel tread contour detecting device according to claim 1, wherein motion drive part is made up of composite stepper motor, shaft coupling, ball-screw, nut, slide block, bearing block, restraint guide rod; It is characterized in that: shaft coupling meets zero back clearance; Restraint guide rod is slidably matched with the unthreaded hole on slide block, and restriction nut can only move linearly.
5. portable train wheel tread contour detecting device according to claim 1, wherein forming movement mechanism, motion driving mechanism installation be based on pillar panel; Pillar panel side is fixed with one block of flat Magnet, sucks in wheel side-locating face as horizontal survey datum level during measurement; Pillar panel side is further fixed on two positioning cylinders, is close to wheel rim during measurement, makees vertical direction location.
6. portable train wheel tread contour detecting device according to claim 1, wherein profiling rail sections is made up of two identical guide rails; It is characterized in that: two profiling guide rails are used simultaneously as the major support members of apparatus structure, reduce physical dimension and weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521081849.2U CN205280000U (en) | 2015-12-23 | 2015-12-23 | Portable train tire tread profile detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521081849.2U CN205280000U (en) | 2015-12-23 | 2015-12-23 | Portable train tire tread profile detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280000U true CN205280000U (en) | 2016-06-01 |
Family
ID=56064568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521081849.2U Withdrawn - After Issue CN205280000U (en) | 2015-12-23 | 2015-12-23 | Portable train tire tread profile detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205280000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466355A (en) * | 2015-12-23 | 2016-04-06 | 青岛大学 | Portable outline detection device for train wheel tread |
| CN109211053A (en) * | 2017-07-05 | 2019-01-15 | 北京新联铁集团股份有限公司 | The wheel rim tread detecting instrument of train |
-
2015
- 2015-12-23 CN CN201521081849.2U patent/CN205280000U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466355A (en) * | 2015-12-23 | 2016-04-06 | 青岛大学 | Portable outline detection device for train wheel tread |
| CN105466355B (en) * | 2015-12-23 | 2018-02-09 | 青岛大学 | Portable train wheel tread contour detecting device |
| CN109211053A (en) * | 2017-07-05 | 2019-01-15 | 北京新联铁集团股份有限公司 | The wheel rim tread detecting instrument of train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20180209 |
|
| AV01 | Patent right actively abandoned |