CN2720407Y - Five-lever mechanism measuring device for profile curve of railway rail section - Google Patents
Five-lever mechanism measuring device for profile curve of railway rail section Download PDFInfo
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- CN2720407Y CN2720407Y CN 200420061040 CN200420061040U CN2720407Y CN 2720407 Y CN2720407 Y CN 2720407Y CN 200420061040 CN200420061040 CN 200420061040 CN 200420061040 U CN200420061040 U CN 200420061040U CN 2720407 Y CN2720407 Y CN 2720407Y
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Abstract
The utility model discloses a five-connecting rod mechanism measuring device for profile curve of railway rail section. An inner optical-electricity encoder (9) of the utility model is fixed next to the middle of the upper part of the machine frame. An outer optical-electricity encoder (12) is fixed next to the outer end of the upper part of the machine frame. A measuring moving mechanism is a five-connecting rod mechanism which is characterized in that one end of the inner side link and one end of the outer side link (8, 13) are respectively fixed on the shafts of the inner optical-electricity encoder and the outer optical-electricity encoder (9, 12); the other end of the outer side link (13) is hinged with a connecting rod (11) and the other end of the inner side link (8) is hinged with a measuring rod (14); the other end of the connecting rod (11) is hinged with the middle of the measuring rod (14); the other end of the measuring rod (14) is provided with a measuring wheel (15). The weight of the movement part of the five-connecting rod mechanism measuring device for profile curve of railway rail section is light. The accuracy in measurement of the optical-electricity encoder is high. The measuring basis isn't provided with any abrasion. The utility model has convenient and handy operation, convenient carry over, small error of measurement and high precision.
Description
Affiliated technical field
The utility model relates to a kind of measurement mechanism that is used for railroad carriage wheel and railway track rail head cross-section appearance curve.
Background technology
Wheel will inevitably produce abrasion to rolling along two rail, wheel track is in contact with one another part, and to have suitable section profile be the prerequisite of vehicle safety and even running, the minimizing of simul relation wheel track maintenance capacity and the prolongation in serviceable life are important process to the section appearance curve measurement of wheel and track.Because wheel and rail all compare heavy and are distributed in wide scene, therefore need portable wheel/rail measuring appliance, the inspection utensil of pure machinery can only be measured the several characteristic size, has only digitized appearance curve measurement mechanism to obtain and the automatic digital curve that writes down complete wheel/rail section profile.
CN1256397 was at disclosed tread shape testing instrument for subway train in 2000, the rectangular coordinate system that adopts the XY platform to provide is measured, rely on spring to provide ergometry about 2N for gauge head, wheel tread curve Y coordinate figure is carried out continuous coverage, because the angle of the part of wheel rim both sides and X-axis is about 70 degree, therefore the transverse component of generation is very big, can cause bigger measuring error, and measuring speed is slow, the instrument heaviness, and volume is big.In calendar year 2001, the utility model of CN2429410Y bulletin provides an improvement project preferably, has adopted the measurement motion of two connecting rods series connection, by the photoelectric encoder on the frame, measures the relative rotation of side link and frame; By being fixed on the photoelectric encoder of side link end, measure the relative rotation of side link and sounding rod; The mode that the benchmark of coordinate system adopts mechanical references to cooperate with magnet, improved measuring speed, precision and dwindled volume and weight, but following shortcoming has been arranged:
1, because the photoelectric encoder of side link end needs with the side link motion, its volume and weight is restricted, thereby has limited the possibility of selecting high-precision encoder for use.
2, the photoelectric encoder of side link end, volume and weight that it is bigger and stube cable all influence the dirigibility of measurement, and the operating physical force that hand dipping needs is bigger, and the flexural deformation that causes directly causes angle measurement error, and precision is reduced.
3, the mechanical references of Bao Luing wears away easily, permanent magnet is easy to adsorb the iron filings that wheel-rail wear produces, thereby influence the original point position precision of coordinate system, generation measuring system error.
Summary of the invention
The purpose of this utility model provides a kind of five-bar mechanism measurement mechanism of railway track and wheel hub section appearance curve.The quality of this device motion parts is little, the precision height of photoelectric encoder, and measuring basis does not have abrasion, and is easy to operate, light and handy; Measuring error is little, precision is high.
The utility model solves its technical matters, the technical scheme that is adopted is: a kind of five-bar mechanism measurement mechanism of railway track and wheel hub section appearance curve, by measuring wheel, inside and outside photoelectric encoder, measure compositions such as motion and frame, its design feature is: interior photoelectric encoder is fixed near the centre of upper rack, and outer photoelectric encoder is fixed near the outer end of upper rack; The measurement motion is a five-bar mechanism, it specifically constitutes: an end of inside and outside side link is separately fixed on the axle of inside and outside photoelectric encoder, the other end and the sounding rod of the other end of outer side link and rod hinge connection, interior side link are hinged, the other end of connecting rod is hinged on the middle part of sounding rod, and the other end of sounding rod installs and measures wheel.
Before and after measuring, it is deposit position that measuring wheel all is in initial position.During measurement, lay and be fixed to device on the wheel, measuring wheel is removed from initial position, be put on wheel tread or the rail head surface, and coordinate system is set up in the outside that makes measuring wheel be rolled to wheel or rail head, and (deviation of this coordinate system is demarcated by special test, and by software realization compensation), measuring wheel is returned on the way promptly realize measuring.Its principle is: five-bar mechanism of the present utility model belongs to the plane 5R linkage assembly of two-freedom, measuring wheel on the sounding rod is when measured surface rolls, the measuring wheel present position has specific corresponding relation with the rotational angle of the inside and outside photoelectric encoder axle that inside and outside side link end links to each other, and the plane surveying movement conversion of measuring wheel becomes the rotation of two scrambler axles.The pulse number that sends according to scrambler and the length of each connecting rod can be obtained the geometric locus of measuring core wheel by triangulation calculation, and further the effect of radius of compensating measure wheel promptly obtains the appearance curve of measured wheel or rail head.
Compared with prior art, the beneficial effects of the utility model are: two scramblers all are fixed on the frame, their volume and weight limited degree dwindles greatly, allow the scrambler of selecting for use precision higher, and, make that measuring mechanism is more exquisite, rotating operation is more flexible because rotating part removed the greater weight scrambler; Make mechanism make to measure the operating physical force that moves and reduced, the stress deformation of measuring mechanism correspondence reduces, and has therefore also reduced measuring error.Coordinate basis is provided by airtight photoelectric encoder zero signal and demarcates by testing, and does not have abrasion and not influenced by iron filings, and measuring basis accurately, reliably.
Be fixed with pin on the above-mentioned connecting rod, the other end of pin is with spring, and it is interior also fixing that the other end of spring then inserts the Heat insulated conduit of operating grip.
Limit ergometry by the elastic operation handle, thereby reduced the stress deformation error of linkage assembly, provision for thermal insulation has avoided the temperature of hand to make sounding rod elongated, therefore can obtain higher measuring accuracy.
Above-mentioned frame is by side plate and be fixedly connected on the inboard transverse slat in side plate upper end and constitute, and inside and outside photoelectric encoder then is separately fixed near the middle part of transverse slat and near the outer end.
The middle part of above-mentioned side plate inboard is provided with two pins, and the inboard Lower Half of side plate is provided with permanent magnet.
During measurement, two pins on the side plate near wheel rim, are adsorbed on side plate on the wheel reference field by means of permanent magnet, make the utility model not only convenient but also reliable like this measurement and positioning of wheel section appearance curve.
Side plate Lower Half interior plate face is provided with more than three or three, not linear distributing boss.
Because the existence of boss can make the side plate inboard reliably contact the location with wheel, makes that again the medial surface of side plate is not to contact with wheel face, can reduce the cleaning area of contaminated wheel reference field so comprehensively.
Lateral surface middle part at above-mentioned side plate is provided with the measuring wheel magnet base.Before and after measuring, the measuring wheel magnet base can be adsorbed on deposit position with measuring wheel, makes measuring wheel and five-bar mechanism thereof be in motionless rounding state, conveniently to deposit and to avoid damaging.Specified the initial position of measuring wheel simultaneously, so that set up coordinate system when measuring smoothly.
Above-mentioned frame is connected and composed by the end Connection Block of transverse slat through screw and gauge sounding rod.The device of this structure is used to measure the section appearance curve of rail head of rail.
The end Connection Block of above-mentioned gauge sounding rod is provided with measuring wheel magnet base and measurement and positioning benchmark, and the bottom of end Connection Block also is provided with permanent magnet.During use, the rail that two positioning references of gauge sounding rod withstand both sides gets final product.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structure front elevation of the utility model embodiment when being used for wheel section appearance curve and measuring.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structure front elevation of the utility model embodiment when being used for rail head of rail section appearance curve and measuring.
Embodiment
Fig. 1,2 illustrates, and a kind of embodiment of the present utility model is: a kind of five-bar mechanism measurement mechanism of railway track and wheel hub section appearance curve, by measuring wheel 15, inside and outside photoelectric encoder 9,12 is measured compositions such as motion and frame.Interior photoelectric encoder 9 is fixed near the centre of upper rack, and outer photoelectric encoder 12 is fixed near the outer end of upper rack; The measurement motion is a five-bar mechanism, it specifically constitutes: an end of inside and outside side link 8,13 is separately fixed on the axle of inside and outside photoelectric encoder 9,12, the other end and the sounding rod 14 of the other end of outer side link 13 and connecting rod 11 hinged, interior side links 8 are hinged, the other end of connecting rod 11 is hinged on the middle part of sounding rod 14, and the other end of sounding rod 14 installs and measures wheel 15.
Fig. 2 illustrates, and is fixed with pin 17 on the connecting rod 11, and the other end of pin 17 is with spring 18, and the other end of spring 18 then inserts in the Heat insulated conduit that operates in handle 10 and fixes.
When being used to measure wheel section appearance curve, the structure of its frame is:
See Fig. 1,2, frame is made of side plate 1 and the transverse slat 6 that is fixedly connected on inboard, side plate 1 upper end, the top of frame is exactly transverse slat 6 like this, inside and outside photoelectric encoder 9,12 is separately fixed near the middle part of upper rack and near the outer end, just is fixed near the middle part of transverse slat 6 and near the outer end.Side plate 1 adopts screw 7 realization screw threads to fixedly connected with transverse slat 6, and frame can be dismantled like this.The middle part of side plate 1 inboard is provided with two pins 4, and the Lower Half of side plate 1 inboard is provided with permanent magnet 3, and permanent magnet 3 can be for a plurality of.
The process of measuring wheel section appearance curve is: the pin on the side plate 14 is placed the inboard wheel rim of wheel top, and side plate 1 is placed the wheel inboard, reliably contact and fix through what permanent magnet 3 absorption realized side plates 1 and wheel.The photoelectric encoder 9,12 that connects computing machine or controller and measurement mechanism with private cable, start Survey Software, by operating grip 10 measuring wheel 15 is removed from measuring wheel magnet base 5, be put on the wheel tread 16 and be rolled to the outside from the inboard, in this process, after the zero pulse controlled device that scrambler 9,12 produces is gathered, set up measurement coordinate system, the deviation that actual zero position of scrambler and ideal null are put is demarcated by special test and has been realized compensation by software.After computing machine or controller provide the indication that coordinate system builds up, measuring wheel was close to the tread left side about 1 second, measuring wheel is measured along wheel tread 16 scrolling realization in the other direction, after measuring wheel arrives the rightmost side and paused 1 second, program stops measuring and record and automatic the end, at last measuring wheel is put back to measuring wheel magnet base 5, just finished one-shot measurement.
When measuring the rail head of rail appearance curve, then the transverse slat 6 and the attachment screw 7 of side plate 1 should be turned on, side plate 1 is pulled down from transverse slat 6.Then by shown in Figure 3:
The end Connection Block of transverse slat 6 usefulness screws 20 and gauge sounding rod 19 is connected and composed frame.The end Connection Block of this gauge sounding rod 19 is provided with measuring wheel magnet base 21 and orbit measurement positioning reference 22, and the bottom of end Connection Block also is provided with permanent magnet 23.During measurement, earlier measurement and positioning benchmark 22 is withstood rail 26, other operation steps is identical with measurement wheel section appearance curve.Measuring wheel magnet base 21, its effect is also identical with measuring wheel magnet base 5 on the side plate 1; The permanent magnet 23 of Connection Block bottom, end can be with the measurement mechanism secure fixation on rail 26.
In addition, note that photoelectric encoder installation requirement of the present utility model is: leave in the process of initial bit arrival wheel or rail head opposite side at measuring wheel 15, the rotation of scrambler necessarily produces zero pulse, the deviation that actual zero position of scrambler and ideal null are put is demarcated by special test, and realizes compensation by software.
Measuring wheel 15 of the present utility model can be taken turns for Magnetic Measurement, and when measuring, measuring wheel 15 can keep well contacting with tested surface, guarantees correct measurement like this; But because of Magnetic Measurement wheel 15 may adsorb iron filings, before therefore measuring, needing to remove can adsorbable iron filings.
If measurement motion of the present utility model disposes and adaptive frame or the support of other testee separately, he measures the bidimensional measurement of coordinates of occasion also to can be used for other.
Claims (8)
1, a kind of five-bar mechanism measurement mechanism of railway track and wheel hub section appearance curve, by measuring wheel (15), inside and outside photoelectric encoder (9,12), measure compositions such as motion and frame, it is characterized in that: interior photoelectric encoder (9) is fixed near the centre of upper rack, and outer photoelectric encoder (12) is fixed near the outer end of upper rack; The measurement motion is a five-bar mechanism, it specifically constitutes: an end of inside and outside side link (8,13) is separately fixed on the axle of inside and outside photoelectric encoder (9,12), the other end of the other end of outer side link (13) and hinged, the interior side link of connecting rod (11) (8) and sounding rod (14) are hinged, the other end of connecting rod (11) is hinged on the middle part of sounding rod (14), and the other end of sounding rod (14) installs and measures wheel (15).
2, measurement mechanism according to claim 1, it is characterized in that: be fixed with pin (17) on the described connecting rod (11), the other end of pin (17) is with spring (18), and it is interior also fixing that the other end of spring (18) then inserts the Heat insulated conduit of operating grip (10).
3, measurement mechanism according to claim 1, it is characterized in that: described frame is by side plate (1) and be fixedly connected on the inboard transverse slat (6) in side plate (1) upper end and constitute, and inside and outside photoelectric encoder (9,12) then is separately fixed near the middle part of transverse slat (6) and near the outer end.
4, measurement mechanism according to claim 3 is characterized in that: the inboard middle part of described side plate (1) is provided with two pins (4), and the inboard Lower Half of side plate (1) is provided with permanent magnet (3).
5, measurement mechanism according to claim 4 is characterized in that: the inboard Lower Half plate of side plate (1) face is provided with not linear distributing boss (2) more than three or three.
6, measurement mechanism according to claim 4 is characterized in that: the lateral surface middle part of described side plate (1) is provided with measuring wheel magnet base (5).
7, measurement mechanism according to claim 1 is characterized in that: described frame is connected and composed through the end Connection Block of screw (20) with gauge sounding rod (19) by transverse slat (6).
8, measurement mechanism according to claim 7, it is characterized in that: described gauge sounding rod (19) is provided with measuring wheel magnet base (21) and measurement and positioning benchmark (22) with the end Connection Block of transverse slat (6), and the bottom of end Connection Block also is provided with permanent magnet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061040 CN2720407Y (en) | 2004-09-02 | 2004-09-02 | Five-lever mechanism measuring device for profile curve of railway rail section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061040 CN2720407Y (en) | 2004-09-02 | 2004-09-02 | Five-lever mechanism measuring device for profile curve of railway rail section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720407Y true CN2720407Y (en) | 2005-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061040 Expired - Fee Related CN2720407Y (en) | 2004-09-02 | 2004-09-02 | Five-lever mechanism measuring device for profile curve of railway rail section |
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| Country | Link |
|---|---|
| CN (1) | CN2720407Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438852A (en) * | 2013-08-19 | 2013-12-11 | 浙江恒立数控科技股份有限公司 | Nearby shaft synchronous rotation structure |
| CN105775226A (en) * | 2016-05-06 | 2016-07-20 | 广州市兴世机械制造有限公司 | Five-bar pushing mechanism for packing machine |
| CN106352834A (en) * | 2016-08-31 | 2017-01-25 | 北京燕宏达铁路设备有限公司 | Steel railhead profile measuring instrument |
| CN108362250A (en) * | 2018-03-21 | 2018-08-03 | 江西日月明测控科技股份有限公司 | Subway third rail measures mechanical arm |
| CN114485353A (en) * | 2022-02-11 | 2022-05-13 | 华夏高铁技术有限公司 | Method for generating steel rail profile measurement curve |
| CN117141548A (en) * | 2023-10-30 | 2023-12-01 | 成都铁安科技有限责任公司 | Translation device for detecting tread damage of wheel set |
-
2004
- 2004-09-02 CN CN 200420061040 patent/CN2720407Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438852A (en) * | 2013-08-19 | 2013-12-11 | 浙江恒立数控科技股份有限公司 | Nearby shaft synchronous rotation structure |
| CN105775226A (en) * | 2016-05-06 | 2016-07-20 | 广州市兴世机械制造有限公司 | Five-bar pushing mechanism for packing machine |
| CN105775226B (en) * | 2016-05-06 | 2019-08-23 | 广州市兴世机械制造有限公司 | A kind of five connecting rod pushers of packing machine |
| CN106352834A (en) * | 2016-08-31 | 2017-01-25 | 北京燕宏达铁路设备有限公司 | Steel railhead profile measuring instrument |
| CN108362250A (en) * | 2018-03-21 | 2018-08-03 | 江西日月明测控科技股份有限公司 | Subway third rail measures mechanical arm |
| CN108362250B (en) * | 2018-03-21 | 2023-10-27 | 江西日月明测控科技股份有限公司 | Third rail measuring mechanical arm for subway |
| CN114485353A (en) * | 2022-02-11 | 2022-05-13 | 华夏高铁技术有限公司 | Method for generating steel rail profile measurement curve |
| CN117141548A (en) * | 2023-10-30 | 2023-12-01 | 成都铁安科技有限责任公司 | Translation device for detecting tread damage of wheel set |
| CN117141548B (en) * | 2023-10-30 | 2024-01-30 | 成都铁安科技有限责任公司 | Translation device for detecting tread damage of wheel set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050824 Termination date: 20110902 |