CN204788124U - A model for measuring railroad section symmetry - Google Patents
A model for measuring railroad section symmetry Download PDFInfo
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- CN204788124U CN204788124U CN201520363866.9U CN201520363866U CN204788124U CN 204788124 U CN204788124 U CN 204788124U CN 201520363866 U CN201520363866 U CN 201520363866U CN 204788124 U CN204788124 U CN 204788124U
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Abstract
The utility model discloses a model for measuring railroad section symmetry, including three models: a positive model A for measuring railhead, flange of rail foot symmetry for measure the negative model B of railhead symmetry, be used for measuring the symmetrical negative model C of flange of rail foot. Each model includes web of the rail reference surface, flange of rail face setpoint. Positive model A is equipped with the railhead measuring point and the face is measured to flange of rail foot, and burden model B and C are equipped with the railhead measuring point respectively and the face is measured to flange of rail foot. Hug closely rail flange of rail face with the flange of rail face setpoint during measurement and fix a position, confirm the measuring basis through web of the rail reference surface to the corresponding measurement dot OR of model is measured face and the clearance of rail and is judged respectively that rail railhead and flange of rail foot symmetry are whether in qualified deviation range. Use three models to measure the rail and synthesize and judge the railroad section symmetry in proper order. The utility model discloses an advantage does: measuring result is more accurate, can judge railhead and the measurement of flange of rail foot symmetry respectively.
Description
Technical field
The utility model relates to survey instrument field, specifically, is a kind of for measuring the symmetric model of rail profile.
Background technology
Rail profile symmetry refers to when rail head of rail and flange of rail width meet the demands, rail profile Axisymmetric Distributed Line left side rail head width equals section Axisymmetric Distributed Line right side rail head width, and rail profile Axisymmetric Distributed Line left side rail footing length equals Axisymmetric Distributed Line right side rail footing length.Rail profile symmetry is one of important parameter whether evaluation rail specification size is qualified, under normal circumstances, due to mismachining tolerance, the length non complete symmetry of the rail profile Axisymmetric Distributed Line left and right sides, therefore require that the asymmetric of rail must be within the scope of tolerance, otherwise be unacceptable product.
At present, being one piece of negative model and one piece of positive model, during measurement, being advanced by negative model along the flange of rail from rail side towards rail for measuring the symmetric model of rail profile, the rail head terminating point on final negative model can not contact rail head; Subsequently, use positive model, during measurement, advise model identical for operation and negative quantity, and the rail head terminating point finally just on model should contact with flange of rail pin.Thus, use positive and negative model to measure successively, only have when two pieces of model measurement results all meet above requirement, rail symmetry is qualified.But, though this cover model can carry out measurement to the symmetry of rail judge to there is certain deficiency.One, this model measurement is using rail head or flange of rail pin as datum mark, and reference point is unique and there is change, may have an impact to result; Its two, this model cannot judge separately the symmetric deviations of rail head and flange of rail pin.
Utility model content
In order to solve the problem, the utility model provides a kind of for measuring the symmetric model of rail profile, measure using steel rail web as reference field, this is because rail is when rolling, rolling mill practice is more conducive to control steel rail web thickness and position, therefore can ensure the precision measured using the web of the rail as measurement datum, measurement judgement can be carried out to the symmetric deviations of rail head and flange of rail pin respectively in addition.
A kind of for measuring the symmetric model of rail profile, it is characterized in that: comprise positive model A, negative model B and negative model C.
Described positive model A is identical with negative model B structure, on be designed with rail head from top to bottom successively and measure protruding, a web of the rail reference field, a flange of rail pin measuring surface and two flange of rail face positioning convex.Negative model C has a web of the rail reference field from top to bottom, a flange of rail pin measuring surface and two flange of rail face positioning convex successively.
Positive model A need meet: while two flange of rail face positioning convex contact with standard rail flange of rail face, fit in the middle part of web of the rail reference field and standard steel rail web; Rail head is measured protruding towards standard rail head side of rail, and between there is gap a; Flange of rail pin measuring surface is parallel with standard rail flange of rail pin side, and between there is gap b.
Negative model B need meet: while two flange of rail face positioning convex contact with standard rail flange of rail face, there is gap b in the middle part of web of the rail reference field and standard steel rail web; Rail head measures protruding and standard rail head of rail contacts side surfaces; Fit in flange of rail pin measuring surface and standard rail flange of rail pin side.
Negative model C need meet: while two flange of rail face locator protrusionss contact with standard rail flange of rail face, fit in flange of rail pin measuring surface and standard rail flange of rail pin side; Gap c is there is in the middle part of web of the rail reference field and standard steel rail web.
Use positive model A successively, negative model B and negative model C measures tested rail profile symmetry, when three pieces of model measurement results are all in qualified deviation range, then tested rail symmetry meets the requirements.
Advantage of the present utility model is:
1, the utility model model, using the web of the rail as measurement datum, measurement result is more accurate;
2, the utility model model, can carry out measurement judgement to the symmetry of rail head and flange of rail pin respectively.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the positive model A structural representation in the utility model model;
Fig. 2 is the negative model B structural representation in the utility model model;
Fig. 3 is the negative model C-structure schematic diagram in the utility model model;
In figure:
The positive model A2-of 1-bears model B3-and bears model CA-1-web of the rail reference field
A-2-rail head measurement point A-3-flange of rail pin measuring surface A-4-flange of rail face anchor point B-1-web of the rail reference field
B-2-rail head measurement point B-3-flange of rail face anchor point C-1-web of the rail reference field C-2-flange of rail pin measuring surface
C-3-flange of rail face anchor point
Embodiment
Below in conjunction with drawings and Examples, content of the present utility model is described in further detail.
The utility model measures the symmetric model of rail profile, comprises three pieces of models, is respectively: for measuring the positive model A of rail head and flange of rail pin symmetry, for measuring the negative model B of rail head symmetry, for measuring the negative model C of flange of rail pin symmetry.
Described positive model A is designed with a rail head from top to bottom successively and measures protruding A-2, a web of the rail reference field A-1, flange of rail pin measuring surface A-3 and two flange of rail face positioning convex A-4.Wherein, it is semisphere that rail head measures end that is protruding, flange of rail face positioning convex A-4, makes point cantact between itself and measured rail.Web of the rail reference field A-1 is cambered surface, and the radius of the radian of cambered surface is equal with the radius of the standard steel rail web place circular arc corresponding to measured size rail.Structure and the dimensions of said structure positive model A need meet: in the standard rail corresponding with measured size rail, install positive model A, and positive model A and rail xsect are be arranged in parallel; In positive model A, two flange of rail face positioning convex A-4 are towards standard rail flange of rail face, contact with standard rail flange of rail face; Fit in the middle part of web of the rail reference field A-1 and standard steel rail web; Rail head measures protruding A-2 towards top, standard rail head side, and between there is gap, gap width is L1; Flange of rail pin measuring surface A-3 is parallel with standard rail flange of rail pin side, and between there is gap, gap width is L2.
Described negative model B structure is identical with positive model A, and its structure and dimensions need meet: in the standard rail corresponding with tested rail size, install negative model B, negative model B and standard rail xsect are be arranged in parallel; In negative model B, two flange of rail face positioning convex B-4 contact with standard rail flange of rail face; There is gap in the middle part of web of the rail reference field B-1 and standard steel rail web, gap width is L3; Rail head measures protruding B-2 and standard rail head side of rail tip contact; Fit in flange of rail pin measuring surface B-3 and standard rail flange of rail pin side.
Described negative model C is the positive model that portion has that rail head measures protruding A-2, namely has a web of the rail reference field C-1 from top to bottom successively, flange of rail pin measuring surface C-3 and two flange of rail face positioning convex C-4; Said structure bears the structure of model C and dimensions need meet: in the standard rail corresponding with tested rail size, install negative model C, negative model C and standard rail xsect are be arranged in parallel, and in negative model C, two flange of rail face locator protrusions C-3 contact with standard rail flange of rail face; Fit in flange of rail pin measuring surface C-3 and standard rail flange of rail pin side; Gap is there is, gap width L4 in the middle part of web of the rail reference field C-1 and standard steel rail web.
By positive model A, the negative model B and negative model C of said structure, when carrying out rail symmetry and measuring:
First, the flange of rail positioning convex A-4 of positive model A is pressed and contacts to tested rail foot surface, advance towards tested rail from tested rail side; When web of the rail reference field A-1 contacts with tested steel rail web, if there is gap respectively and between tested rail in rail head measurement point A-2 and flange of rail pin measuring surface A-3, gap width is made to be respectively d1, d2, and gap width meets respectively: 0 < d1≤L1, during 0 < d2≤L2, then show that the symmetry of tested rail is in overgauge acceptability limit.
Subsequently, the flange of rail positioning convex B-4 of negative model B is pressed and contacts to tested rail foot surface, advance from tested rail side towards tested rail, when rail head measurement point B-2 contacts with rail head, if there is gap between web of the rail reference field B-1 and tested steel rail web, make gap width be d3, and gap width meet: during 0 < d3≤L3, then to show that the symmetry of tested rail head of rail is in minus deviation acceptability limit.
Finally, the flange of rail anchor point C-3 of just negative model C presses and contacts to tested rail foot surface, advance from tested rail side towards tested rail, as flange of rail pin measuring surface C-2 and tested Rail footing contacts side surfaces, gap is there is between web of the rail reference field C-1 and tested steel rail web, gap width is made to be d4, when gap width meets: during 0 < d4≤L4, then show that the symmetry of tested Rail footing is in minus deviation acceptability limit.
In sum, use positive model A successively, negative model B and negative model C measures tested rail profile symmetry, when three pieces of model measurement results are all in qualified deviation range, then tested rail symmetry meets the requirements.
Embodiment:
Tested rail is 60kg/m rail, then make three pieces of models with standard 60kg/m, design in positive model A and negative model B, rail head measurement point is apart from flange of rail face anchor point vertical range 161.8mm, just in time be in the rail head place of standard 60kg/m rail apart from tread peak 14.2mm, meet the requirement of rail head symmetrical measurement.Meet d1=d3=0.5mm simultaneously; D2=d4=1.2mm;
Then when carrying out rail symmetry and measuring, by positive model A is installed on tested rail, when web of the rail reference field A-1 contacts with tested steel rail web, if rail head measurement point A-2 and flange of rail pin measuring surface A-3 respectively and the gap existed between rail, and gap width meets: 0mm < d1≤0.5mm, during 0mm < d2≤1.2mm, then show that the symmetry of tested rail is in overgauge acceptability limit.
Subsequently, negative model B is installed on tested rail, when rail head measurement point B-2 contacts with rail head, if there is gap between web of the rail reference field B-1 and steel rail web, and gap width meets: during 0mm < d3≤0.5mm, then show that the symmetry of tested rail head of rail is in minus deviation acceptability limit.
Finally, negative model C is installed on tested rail, as flange of rail pin measuring surface C-2 and tested Rail footing contacts side surfaces, if there is gap between web of the rail reference field C-1 and tested steel rail web, and gap width meets: during 0 < d4≤1.2mm, then show that the symmetry of Rail footing is in minus deviation acceptability limit.
Claims (4)
1. for measuring the symmetric model of rail profile, it is characterized in that: comprise positive model A, negative model B and negative model C;
Described positive model A is identical with negative model B structure, on be designed with rail head from top to bottom successively and measure protruding, a web of the rail reference field, a flange of rail pin measuring surface and two flange of rail face positioning convex; Negative model C has a web of the rail reference field from top to bottom, a flange of rail pin measuring surface and two flange of rail face positioning convex successively;
Positive model A need meet: while two flange of rail face positioning convex contact with standard rail flange of rail face, fit in the middle part of web of the rail reference field and standard steel rail web; Rail head is measured protruding towards standard rail head side of rail, and between there is gap a; Flange of rail pin measuring surface is parallel with standard rail flange of rail pin side, and between there is gap b;
Negative model B need meet: while two flange of rail face positioning convex contact with standard rail flange of rail face, there is gap b in the middle part of web of the rail reference field and standard steel rail web; Rail head measures protruding and standard rail head of rail contacts side surfaces; Fit in flange of rail pin measuring surface and standard rail flange of rail pin side;
Negative model C need meet: while two flange of rail face locator protrusionss contact with standard rail flange of rail face, fit in flange of rail pin measuring surface and standard rail flange of rail pin side; Gap c is there is in the middle part of web of the rail reference field and standard steel rail web.
2. a kind of for measuring the symmetric model of rail profile as claimed in claim 1, it is characterized in that: in described positive model A, negative model B, it is semisphere that rail head measures end that is protruding, flange of rail face positioning convex.
3. a kind of for measuring the symmetric model of rail profile as claimed in claim 1, it is characterized in that: in described positive model A, negative model B and negative model C, web of the rail reference field is cambered surface, and the radius of the radian of cambered surface is equal with the radius of the standard steel rail web place circular arc corresponding to measured rail.
4. a kind of for measuring the symmetric model of rail profile as claimed in claim 1, it is characterized in that: described gap a is equal with the width of gap c; Gap b is equal with the width of gap d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363866.9U CN204788124U (en) | 2015-05-29 | 2015-05-29 | A model for measuring railroad section symmetry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363866.9U CN204788124U (en) | 2015-05-29 | 2015-05-29 | A model for measuring railroad section symmetry |
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| CN204788124U true CN204788124U (en) | 2015-11-18 |
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| CN201520363866.9U Active CN204788124U (en) | 2015-05-29 | 2015-05-29 | A model for measuring railroad section symmetry |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606060A (en) * | 2016-03-02 | 2016-05-25 | 攀钢集团攀枝花钢钒有限公司 | Composite measuring device for steel rail section symmetry degree |
| CN106289010A (en) * | 2016-09-26 | 2017-01-04 | 北京航天新风机械设备有限责任公司 | A kind of many cooperations face, space cubing |
| CN106926211A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | A kind of model with measurement auricle |
-
2015
- 2015-05-29 CN CN201520363866.9U patent/CN204788124U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606060A (en) * | 2016-03-02 | 2016-05-25 | 攀钢集团攀枝花钢钒有限公司 | Composite measuring device for steel rail section symmetry degree |
| CN105606060B (en) * | 2016-03-02 | 2018-09-04 | 攀钢集团攀枝花钢钒有限公司 | Duplex measurement device for rail profile symmetry |
| CN106289010A (en) * | 2016-09-26 | 2017-01-04 | 北京航天新风机械设备有限责任公司 | A kind of many cooperations face, space cubing |
| CN106289010B (en) * | 2016-09-26 | 2018-11-02 | 北京航天新风机械设备有限责任公司 | A kind of more mating surface cubings in space |
| CN106926211A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | A kind of model with measurement auricle |
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 100036, Beijing, Haidian District Fuxing Road, No. 17, national sea Plaza, block C, 13 Patentee after: CHINA RAILWAY MATERIALS TECHNOLOGY Co.,Ltd. Address before: 100031, Dacheng building, 127 West Street, Xicheng District, Beijing, Xuanwumen, 10 Patentee before: CHINA RAILWAY MATERIALS TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221107 Address after: 100000F12, Block A, Dingxing Building, No. 5 Fenghuangzui Road, Fengtai District, Beijing Patentee after: CHINA RAILWAY MATERIALS TECHNOLOGY Co.,Ltd. Patentee after: China Railway Material General operation and Maintenance Technology Co.,Ltd. Address before: 13/F, Building C, Guohai Plaza, No. 17, Fuxing Road, Haidian District, Beijing 100036 Patentee before: CHINA RAILWAY MATERIALS TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |