CN111994125B - Rail bottom slope detection tool support and rail bottom slope detection equipment - Google Patents
Rail bottom slope detection tool support and rail bottom slope detection equipment Download PDFInfo
- Publication number
- CN111994125B CN111994125B CN202010983067.7A CN202010983067A CN111994125B CN 111994125 B CN111994125 B CN 111994125B CN 202010983067 A CN202010983067 A CN 202010983067A CN 111994125 B CN111994125 B CN 111994125B
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- Prior art keywords
- rail
- fixing
- rail bottom
- bottom slope
- tool support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The application discloses rail base slope detects frock support and rail base slope check out test set. The rail bottom slope detection tool support comprises a first installation part, a second installation part, a first fixing clamp and a second fixing clamp. The top of the second installation part is obliquely connected with the top of the first installation part, the bottom of the first installation part is provided with a first fixing part, and the bottom of the second installation part is provided with a second fixing part. The application provides a technical scheme can fix detecting instrument steadily, guarantees measuring result's accuracy.
Description
Technical Field
The application relates to the technical field of railway track construction maintenance, in particular to a rail bottom slope detection tool support and rail bottom slope detection equipment.
Background
Because the main contact part of the wheel tread and the top surface of the steel rail is a slope, in order to enable the axle center of the steel rail to bear force, the steel rail also has an inward inclination, and thus a rail bottom slope is formed. The rail is provided with the rail bottom slope, so that the rail connecting contact is concentrated in the middle of the rail top, the transverse stability of the rail is improved, the uneven abrasion of the rail head is reduced, the plastic deformation of the rail head is reduced, and the service life is prolonged.
In the prior art, a handheld detection instrument is used for measuring the rail bottom slope of the steel rail, the position of the detection instrument relative to the steel rail cannot be accurately fixed, meanwhile, the influence of human interference is caused, and the accuracy of a measurement result is reduced.
Disclosure of Invention
The application provides a rail base slope detects frock support and rail base slope check out test set can fix detecting instrument steadily, guarantees measuring result's accuracy.
In a first aspect, an embodiment of the present invention provides a rail bottom slope detection tool support, including:
a first mounting portion;
the top of the second mounting part is connected with the top of the first mounting part, the bottom of the first mounting part is provided with a first fixing part, and the bottom of the second mounting part is provided with a second fixing part;
the first fixing clamp is arranged on the outer wall of the first mounting part and used for fixing the detection instrument; and
the second fixing clamp is arranged on the outer wall of the second mounting part and used for fixing the detection instrument;
first installation department and second installation department slope each other, when the rail base slope detects the frock support and places in the rail, the rail is in between first installation department and the second installation department, and the rail bottom surface of first fixed part and one side of rail is laminated closely, and the rail bottom surface of second fixed part and the opposite side of rail is laminated closely.
In the above scheme, first installation department and second installation department slope each other in order to form triangular member, and first installation department and second installation department are located the both sides of rail respectively, and first fixed part and second fixed part are laminated closely with the rail bottom surface of rail both sides respectively, guarantee that the rail bottom slope detects the stability between frock support and the rail. Fixing the detecting instrument in one of first fixation clamp and second fixation clamp subsequently, carrying out rail base slope measurement work in one side of rail, take off the detecting instrument afterwards, fix the detecting instrument in another in first fixation clamp and second fixation clamp, carry out rail base slope measurement work in the opposite side of rail, reachd accurate testing result. Because the rail bottom slope detection tool support is stably placed on the steel rail, and the detection instrument is fixed on the first fixing clamp or the second fixing clamp, the detection instrument does not need to be held by hands, so that the position of the detection instrument relative to the steel rail is stably and accurately fixed, and the accuracy of a measurement result is ensured.
In an optional embodiment, the rail bottom slope detection tool support further comprises a connecting rod;
the top of the first installation part and the top of the second installation part are respectively and rotatably connected to the connecting rod.
In an alternative embodiment, the first mounting part comprises a first supporting plate and two first rotating rods, and the two first rotating rods are arranged at the top of the first supporting plate at intervals and are rotatably connected with the connecting rod;
the second mounting part comprises a second support plate and two second rotating rods, and the two second rotating rods are arranged at the top of the second support plate at intervals and are in rotating connection with the connecting rod;
the first fixing clamp is arranged on the outer wall of the first supporting plate, and the second fixing clamp is arranged on the outer wall of the second supporting plate.
In an alternative embodiment, the two ends of the connecting rod are formed with external threads and provided with fixing nuts;
the fixing nut is used for abutting against the adjacent first rotating rod and the second rotating rod.
In an alternative embodiment, the wall surface of the first rotating rod facing the second support plate is formed with a tenon joint;
a tenon joint seat is formed on the wall surface of the second rotating rod facing the first supporting plate;
when the tool support for detecting the rail bottom slope is placed on the steel rail, the tenon joint of the adjacent first rotating rod is in tenon joint with the tenon joint seat of the second rotating rod.
In an alternative embodiment, the first fixing part comprises a first rail attaching block fixed on the inner wall of the first mounting part and used for supporting and closely attaching to the rail bottom surface on one side of the rail;
the second fixing part comprises a second steel rail close-fitting block which is fixed on the inner wall of the second mounting part and used for supporting and closely fitting the rail bottom surface on the other side of the steel rail.
In an optional embodiment, the first fixing part further comprises a first rubber pad, the first rubber pad is connected with the bottom of the first mounting part and is used for contacting with the outer wall of one side of the steel rail, and the first steel rail sealing block is fixed at the joint of the first mounting part and the first rubber pad;
the second fixing part further comprises a second rubber pad, the second rubber pad is connected with the bottom of the second mounting part and used for being in contact with the outer wall of the other side of the steel rail, and the second steel rail sealing block is fixed at the joint of the second mounting part and the second rubber pad.
In an optional embodiment, the first fixing clip and the second fixing clip are both mobile phone fixing clips for fixing a mobile phone.
In an alternative embodiment, the mobile phone fixing clip comprises a fixing plate and two elastic clamping plates; two elastic clamping plates are respectively arranged on two sides of the fixing plate so as to clamp the mobile phone through elastic force.
In a second aspect, an embodiment of the present invention provides a rail bottom slope detection device, where the rail bottom slope detection device includes a detection instrument and a rail bottom slope detection tool support according to any one of the foregoing embodiments; when the tool support for detecting the rail bottom slope is placed on the steel rail, the detection instrument is fixed on the first fixing clamp or the second fixing clamp.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a perspective view of a rail bottom slope detection tool support and a steel rail in this embodiment;
FIG. 2 is a front view of a rail bottom slope detection tool support and a steel rail in the present embodiment;
fig. 3 is a front view of the tool holder for detecting a rail bottom slope in this embodiment.
Icon: 10-rail base slope detection tool support; 10 a-a steel rail; 11-a first mounting portion; 12-a second mounting portion; 13-a first retaining clip; 14-a second retaining clip; 15-a first fixed part; 16-a second fixed part; 17-a connecting rod; 20-fixing the plate; 21-an elastic splint;
110-a first support plate; 111-a first turning lever; 112-tenon joint; 120-a second support plate; 121-second rotating shaft; 122-a joggle mount;
150-a first rail seal block; 151-a first rubber pad; 160-a second rail seal block; 161-second rubber pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution in the present application will be described below with reference to the accompanying drawings.
This embodiment provides a rail base slope detects frock support 10, and rail base slope detects frock support 10 can be stable, accurately fixed detecting instrument, guarantees measuring result's accuracy.
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a perspective assembly view of a rail bottom slope detection tool support 10 and a steel rail 10a in the present embodiment, fig. 2 is a front view of the rail bottom slope detection tool support 10 and the steel rail 10a in the present embodiment, and fig. 3 is a front view of the rail bottom slope detection tool support 10 in the present embodiment.
The rail bottom slope detection tool support 10 comprises a first installation part 11, a second installation part 12, a first fixing clamp 13 and a second fixing clamp 14.
The top of the second mounting portion 12 is connected to the top of the first mounting portion 11, the first fixing portion 15 is disposed at the bottom of the first mounting portion 11, and the second fixing portion 16 is disposed at the bottom of the second mounting portion 12.
The first mounting portion 11 and the second mounting portion 12 are inclined to each other to form a triangular member.
When the rail bottom slope detection tool support 10 is placed on the steel rail 10a, the steel rail 10a is located between the first installation portion 11 and the second installation portion 12, the first fixing portion 15 is closely attached to the rail bottom surface of one side of the steel rail 10a, and the second fixing portion 16 is closely attached to the rail bottom surface of the other side of the steel rail 10 a.
The first fixing clip 13 is disposed on an outer wall of the first mounting portion 11 for fixing the detecting instrument.
The second fixing clip 14 is disposed on an outer wall of the second mounting portion 12 for fixing the detecting instrument.
In actual operation, the first installation part 11 and the second installation part 12 are respectively located on two sides of the steel rail 10a, and the first fixing part 15 and the second fixing part 16 are closely attached to the rail bottom surfaces of the two sides of the steel rail 10a, so that the stability between the rail bottom slope detection tool support 10 and the steel rail 10a is guaranteed. And then fixing a detection instrument on one of the first fixing clamp 13 and the second fixing clamp 14, performing rail bottom slope measurement on one side of the steel rail 10a, then taking down the detection instrument, fixing the detection instrument on the other one of the first fixing clamp 13 and the second fixing clamp 14, and performing rail bottom slope measurement on the other side of the steel rail 10a to obtain an accurate detection result. Because the rail bottom slope detection tool support 10 is stably placed on the steel rail 10a, and the detection instrument is fixed on the first fixing clamp 13 or the second fixing clamp 14, the detection instrument does not need to be held by hands, so that the position of the detection instrument relative to the steel rail 10a is stably and accurately fixed, and the accuracy of a measurement result is ensured.
In this disclosure, the rail bottom slope detection tool support 10 further includes a connecting rod 17. The top of the first mounting portion 11 and the top of the second mounting portion 12 are rotatably connected to a connecting rod 17, respectively.
In the implementation process, the first installation part 11 and the second installation part 12 can rotate relative to the connecting rod 17 respectively, so when the rail bottom slope detection tool support 10 is actually placed, the angle between the first installation part 11 and the second installation part 12 can be adjusted by rotating the first installation part 11 and/or the second installation part 12, and the connection stability between the rail bottom slope detection tool support 10 and the steel rail 10a is ensured.
In the present disclosure, the first mounting portion 11 includes a first supporting plate 110 and two first rotating rods 111, and the two first rotating rods 111 are spaced apart from each other at the top of the first supporting plate 110. The two first rotation levers 111 are rotatably connected to the connecting rod 17. The second mounting portion 12 includes a second support plate 120 and two second rotating levers 121, the two second rotating levers 121 are spaced apart from each other at the top of the second support plate 120, and the two second rotating levers 121 are rotatably connected to the connecting rod 17.
The first fixing clip 13 is disposed on an outer wall of the first support plate 110, and the second fixing clip 14 is disposed on an outer wall of the second support plate 120.
In the above-mentioned realization process, 111 interval arrangements of two first dwang, two second dwang 121 interval arrangements, so between first backup pad 110 and the connecting rod 17, be the fretwork form between second backup pad 120 and the connecting rod 17, the detection personnel of being convenient for grip the connecting rod 17, carry the rail base slope and detect frock support 10, have also reduced the weight that the rail base slope detected frock support 10 simultaneously.
In the present disclosure, male screws are formed at both ends of the tie rod 17, and fixing nuts (not shown) are disposed. The fixing nut is used for abutting against the adjacent first rotating rod 111 and the second rotating rod 121.
In the implementation process, after the angle between the first installation part 11 and the second installation part 12 is adjusted, the fixing nut is screwed to abut against the adjacent first rotating rod 111 and the second rotating rod 121, and the first rotating rod 111 and the second rotating rod 121 are prevented from rotating through the friction force among the fixing nut, the first rotating rod 111 and the second rotating rod 121, so that the stability of the first installation part 11 and the second installation part 12 is ensured.
It should be noted that, in other embodiments, a shaft sleeve is formed at one end of the first rotating rod 111, the shaft sleeve of the first rotating rod 111 is sleeved on the rod body of the connecting rod 17 by one end of the connecting rod 17 and forms a rotating fit with the connecting rod 17, and similarly, a shaft sleeve is formed at one end of the second rotating rod 121, and the shaft sleeve of the second rotating rod 121 is sleeved on the rod body of the connecting rod 17 by one end of the connecting rod 17 and forms a rotating fit with the connecting rod 17, so that the first mounting portion 11 and the second mounting portion 12 can be detached from the connecting rod 17, which is convenient for storage.
In the present disclosure, a wall surface of the first rotating lever 111 facing the second support plate 120 is formed with a tenon joint 112. The wall surface of the second rotating lever 121 facing the first support plate 110 is formed with a dovetail seat 122.
When the rail bottom slope detection tool support 10 is placed on the steel rail 10a, the tenon joint 112 of the first rotating rod 111 and the tenon joint seat 122 of the second rotating rod 121 which are adjacent to each other are in tenon joint.
In the above implementation process, the matching between the tenon joint 112 and the tenon seat 122 is beneficial to the stability between the first installation part 11 and the second installation part 12, and the first installation part 11 and the second installation part 12 are prevented from displacement.
In the present disclosure, the first fixing portion 15 includes a first rail attachment block 150 fixed to an inner wall of the first mounting portion 11 to support and closely attach to a rail bottom surface of one side of the rail 10 a. The second fixing portion 16 includes a second rail attachment block 160 fixed to the inner wall of the second mounting portion 12 for supporting and closely attaching to the bottom surface of the other side of the rail 10 a.
In the implementation process, the first steel rail close-fitting block 150 and the second steel rail close-fitting block 160 respectively support and are closely fitted on the rail bottom surface of the steel rail 10a, so that the stability of the rail bottom slope detection tool support 10 in the use process is ensured.
It should be noted that, in order to further enhance the stability of the rail bottom slope detection tool support 10 in the use process and avoid the rail bottom slope detection tool support 10 from overturning in the use process, in the present disclosure, the first fixing portion 15 further includes a first rubber pad 151, and the second fixing portion 16 further includes a second rubber pad 161.
The first rubber pad 151 is connected to the bottom of the first mounting portion 11 for contacting the outer wall of the rail 10a side, and the first rail pad 150 is fixed to the joint of the first mounting portion 11 and the first rubber pad 151.
In the present disclosure, the first fixing clip 13 and the second fixing clip 14 are both mobile phone fixing clips, and the detection instrument is a mobile phone equipped with rail bottom slope measurement software.
It should be noted that the detection instrument may also be other electronic devices, such as a tablet computer, which are equipped with the rail base slope measurement software.
In the implementation process, after the rail bottom slope detection tool support 10 is placed, the mobile phone is fixed on one of the mobile phone fixing clamps, and rail bottom slope measurement software is used for detecting the rail bottom slope.
In the present disclosure, the mobile phone fixing clip includes a fixing plate 20 and two elastic clamping plates 21. Two elastic clamping plates 21 are respectively arranged at two sides of the fixing plate 20 to clamp the mobile phone by elastic force. The elastic clamping plate 21 is connected with the fixing plate through a spring, and the elastic clamping plate 21 contracts towards the fixing plate 20 under the action of the spring, so that the two elastic clamping plates 21 can clamp the mobile phone together, and the mobile phone is prevented from falling.
It should be noted that, this disclosure also provides a rail bottom slope check out test set. The rail bottom slope detection equipment comprises a detection instrument and the rail bottom slope detection tool support 10 described above.
When the rail bottom slope detection tool support 10 is placed on the steel rail 10a, the detection instrument is fixed on the first fixing clamp 13 or the second fixing clamp 14.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a rail base slope detects frock support which characterized in that includes:
a first mounting portion;
the top of the second mounting part is connected with the top of the first mounting part, the bottom of the first mounting part is provided with a first fixing part, and the bottom of the second mounting part is provided with a second fixing part;
the first fixing clamp is arranged on the outer wall of the first mounting part and used for fixing the detection instrument; and
the second fixing clamp is arranged on the outer wall of the second mounting part and used for fixing the detection instrument;
the first installation department with the second installation department slopes each other the rail bottom slope detects the frock support and places when the rail, the rail is in first installation department with between the second installation department, first fixed part with the rail bottom surface of one side of rail is laminated closely, the second fixed part with the rail bottom surface of the opposite side of rail is laminated closely.
2. The rail bottom slope detection tool support of claim 1,
the rail bottom slope detection tool support further comprises a connecting rod;
the top of the first installation part and the top of the second installation part are respectively and rotatably connected with the connecting rod.
3. The rail bottom slope detection tool support of claim 2,
the first mounting part comprises a first supporting plate and two first rotating rods, and the two first rotating rods are arranged at the top of the first supporting plate at intervals and are rotatably connected with the connecting rod;
the second mounting part comprises a second support plate and two second rotating rods, and the two second rotating rods are arranged at the top of the second support plate at intervals and are in rotating connection with the connecting rod;
the first fixing clamp is arranged on the outer wall of the first supporting plate, and the second fixing clamp is arranged on the outer wall of the second supporting plate.
4. The rail bottom slope detection tool support of claim 3,
external threads are formed at two ends of the connecting rod and provided with fixing nuts;
the fixing nut is used for abutting against the adjacent first rotating rod and the second rotating rod.
5. The rail bottom slope detection tool support of claim 3,
a tenon joint is formed on the wall surface of the first rotating rod facing the second supporting plate;
a tenon joint seat is formed on the wall surface of the second rotating rod facing the first supporting plate;
when the rail bottom slope detection tool support is placed on a steel rail, the tenon joint of the first rotating rod and the tenon joint seat of the second rotating rod are in tenon joint.
6. The rail bottom slope detection tool support of claim 1,
the first fixing part comprises a first steel rail close-fitting block which is fixed on the inner wall of the first mounting part and used for supporting and closely fitting the surface of the rail bottom on one side of the steel rail;
the second fixing part comprises a second steel rail close-fitting block which is fixed on the inner wall of the second mounting part and used for supporting and closely fitting the surface of the rail bottom on the other side of the steel rail.
7. The rail bottom slope detection tool support of claim 6,
the first fixing part also comprises a first rubber pad, the first rubber pad is connected with the bottom of the first mounting part and is used for contacting with the outer wall of one side of the steel rail, and the first steel rail close-contact block is fixed at the joint of the first mounting part and the first rubber pad;
the second fixing part further comprises a second rubber pad, the second rubber pad is connected with the bottom of the second installation part and used for being in contact with the outer wall of the other side of the steel rail, and the second steel rail sealing block is fixed at the joint of the second installation part and the second rubber pad.
8. The rail bottom slope detection tool support of claim 1,
the first fixing clamp and the second fixing clamp are mobile phone fixing clamps and are used for fixing a mobile phone.
9. The rail bottom slope detection tool support of claim 8,
the mobile phone fixing clamp comprises a fixing plate and two elastic clamping plates;
the two elastic clamping plates are respectively arranged on two sides of the fixing plate so as to clamp the mobile phone through elastic force.
10. A rail bottom slope detection device is characterized in that,
the rail bottom slope detection equipment comprises a detection instrument and the rail bottom slope detection tool support as claimed in any one of claims 1 to 9;
when the rail bottom slope detection tool support is placed on a steel rail, the detection instrument is fixed on the first fixing clamp or the second fixing clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983067.7A CN111994125B (en) | 2020-09-17 | 2020-09-17 | Rail bottom slope detection tool support and rail bottom slope detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983067.7A CN111994125B (en) | 2020-09-17 | 2020-09-17 | Rail bottom slope detection tool support and rail bottom slope detection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111994125A CN111994125A (en) | 2020-11-27 |
| CN111994125B true CN111994125B (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010983067.7A Expired - Fee Related CN111994125B (en) | 2020-09-17 | 2020-09-17 | Rail bottom slope detection tool support and rail bottom slope detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111994125B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5190938B2 (en) * | 2008-03-28 | 2013-04-24 | 公益財団法人鉄道総合技術研究所 | Rail clearance measurement device |
| CN102607519B (en) * | 2012-03-14 | 2014-01-22 | 郑州铁路局科学技术研究所 | Steel rail base slope measuring instrument |
| CN204161391U (en) * | 2014-10-14 | 2015-02-18 | 石家庄铁道大学 | Steel rail base slope survey meter |
| CN205999733U (en) * | 2016-03-08 | 2017-03-08 | 中铁上海工程局集团有限公司 | A kind of relevant rail Construction of Inclined state-detection chi |
| CN207456442U (en) * | 2017-09-29 | 2018-06-05 | 湖南高速铁路职业技术学院 | A kind of intelligence rail cant measuring instrument device |
| CN108860214A (en) * | 2018-07-12 | 2018-11-23 | 肖力 | A kind of medium-and low-speed maglev F type track detector with positioning function |
| CN211477855U (en) * | 2019-04-30 | 2020-09-11 | 上海工程技术大学 | Portable railway elastic strip buckling pressure on-line high-precision detection device |
| CN111318963B (en) * | 2020-03-09 | 2020-11-24 | 西南交通大学 | Railway track polishing amount and profile detection device |
| CN111206147A (en) * | 2020-03-17 | 2020-05-29 | 中铁宝桥集团有限公司 | Steel rail heel clamping tool and using method |
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2020
- 2020-09-17 CN CN202010983067.7A patent/CN111994125B/en not_active Expired - Fee Related
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| CN111994125A (en) | 2020-11-27 |
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