CN112504082B - Frog working edge detection tool - Google Patents
Frog working edge detection toolInfo
- Publication number
- CN112504082B CN112504082B CN202011471595.0A CN202011471595A CN112504082B CN 112504082 B CN112504082 B CN 112504082B CN 202011471595 A CN202011471595 A CN 202011471595A CN 112504082 B CN112504082 B CN 112504082B
- Authority
- CN
- China
- Prior art keywords
- frog
- plate body
- wire
- working edge
- scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention provides a frog working edge detection tool. The device comprises two wire frames arranged at two ends along the length direction of the frog, wherein the two wire frames are connected through two stay wires, the two stay wires are respectively arranged along the length direction of two working edges of the frog, in the inspection process, the stay wires are in a tensioning linear state, and a detection gap is reserved between the single stay wire and the corresponding working edge. According to the invention, the two wire frames are arranged at the two ends of the frog in the length direction and are connected through the two stay wires, the two stay wires are respectively arranged along the length direction of the two groups of working edges of the frog, in the inspection process, the stay wires are in a tensioning state, whether the working edges are obviously bent or not can be seen by visual inspection according to the parallel condition between the stay wires and the corresponding working edges, the frog can be inspected while being straightened, the frog is not required to be lifted to a platform for inspection when the processing amount of the working edges is inspected, the time is saved, the efficiency is improved, and the dependence on an overhead travelling crane is reduced.
Description
Technical Field
The invention relates to the technical field of detection measuring tools, in particular to a frog working edge detection tool.
Background
The turnout is a device for transferring a train from one track to another track, and the high manganese steel frog is a core component in the conventional turnout on a railway line. The high manganese steel frog is a large casting, the frog blank is subjected to water toughening treatment after casting, the frog blank is large in deformation, the frog blank is straightened by using a straightener before machining, so that the deformation is corrected, the machining quantity of each machining position is ensured, and the working edge straightening condition inspection is a key point of a straightening process.
The existing straightening inspection method for the working edge of the high manganese steel frog mainly comprises the steps of visually inspecting the straightness of the working edge of the frog on a straightening machine, then hanging the frog on a platform for stay wire inspection, and repeatedly hanging the high manganese steel frog between the straightening machine and the platform in the inspection process, so that time is wasted.
In view of the foregoing, there is a need for a frog working edge inspection tool that overcomes the problems of the prior art.
Disclosure of Invention
The invention aims to provide a frog working edge inspection tool, which aims to solve the problem of quick detection of the straightness of a frog blank working edge.
In order to achieve the aim, the invention provides a frog working edge inspection tool, which comprises two wire frames arranged at two ends along the length direction of the frog, wherein the two wire frames are connected through two stay wires, the two stay wires are respectively arranged along the length direction of the two working edges of the frog, in the inspection process, the stay wires are in a tensioned linear state, and an inspection gap is reserved between a single stay wire and the corresponding working edge.
Preferably, a frog working side inspection tool further comprises a gauge for measuring the inspection gap between the wire and its corresponding working side.
Preferably, the detection gap between the pull wire and the corresponding working edge is 5-20 mm.
The wire frame comprises a main board, wherein the main board comprises a first board body and a second board body, the first board body is connected with the second board body to form an included angle I, and the included angle I is identical to an included angle II formed by end faces of two steel rails positioned at two ends of the frog in the length direction.
Preferably, the first plate body and the second plate body are symmetrically arranged about the intersection line of the two plate bodies.
Preferably, the wire frame further comprises two sliding plate frames which are respectively connected with the first plate body and the second plate body in a sliding mode, and wire holes for connecting stay wires are formed in the sliding plate frames.
Preferably, the first plate body and the second plate body are respectively provided with a first scale, and the sliding plate frame is provided with a second scale at a position corresponding to the first scale.
Preferably, the sliding plate frame is further provided with a positioning surface aligned with zero scale marks of the second scale, and the positioning surface is used for positioning the rail web central line of the frog.
Preferably, the sliding plate frame is further provided with a fixing piece for realizing the position fixing between the sliding plate frame and the first plate body or between the sliding plate frame and the second plate body.
Preferably, the sliding plate frame is further provided with a locking piece, and the wire frame is fixed on the steel rail of the frog through the combination of the sliding plate frames on the first plate body and the second plate body.
The technical scheme of the invention has the following beneficial effects:
(1) The coil frame in the invention can be directly hung at two ends of the frog, can be used for detecting while straightening, does not need to hang the frog to the platform for detection when detecting the working amount, saves time, improves efficiency and reduces dependence on a crown block.
(2) According to the invention, the two wire frames are arranged at the two ends of the frog in the length direction and are connected through the two stay wires, the two stay wires are respectively arranged along the length directions of the two groups of working edges of the frog, in the inspection process, the stay wires are in a tensioning state, and whether the working edges have obvious bending can be visually seen through the parallel condition between the stay wires and the corresponding working edges.
(3) According to the invention, the measuring tool is used for measuring the detection gap between the stay wire and the working edge, the measuring tool can be a ruler with scale marks, the measuring precision of the ruler is not lower than 1mm, and the requirement of checking the straightness of the frog blank can be met.
(4) In the invention, the distance between the pull wire and the corresponding working edge is 5-20 mm, so that the distance between the pull wire and the working edge can be conveniently observed and measured.
(5) The main board comprises a first board body and a second board body, wherein the first board body is connected with the second board body to form an included angle I, the included angle I is the same as an included angle II formed by the end surfaces of two steel rails at the heel end of the frog or an included angle III formed by the end surfaces of two steel rails at the toe end of the frog (because the included angle II is the same as the included angle III), the main board can be better attached to the end surfaces of the heel end of the frog and the toe end of the frog, the pull wires are tensioned and fixed, the main board of the same wire frame is suitable for straightness measurement of the frog with all specifications in the same number, and the universality of the wire frame is convenient to improve.
(6) In the invention, the first plate body and the second plate body are symmetrically arranged about the intersection line of the two plate bodies, the intersection line of the first plate body and the second plate body coincides with the intersection line formed by extending the end surfaces of the two steel rails at the end parts of the frog, and the joint between the wire frame and the end surfaces of the two steel rails at the heel end or the toe end of the frog can be realized.
(7) The wire frame further comprises two sliding plate frames which are respectively connected with the first plate body and the second plate body in a sliding mode, wire holes for connecting the stay wires are formed in the sliding plate frames, and the positions of the stay wires can be adjusted through sliding of the sliding plate frames according to the specification of the frog.
(8) The invention discloses a rail waist line of a rail, which is formed by aligning zero scale lines of a second scale with corresponding distance values on a first scale, placing a wire frame on the end surface of the rail, enabling the intersection lines of the first plate and the second plate to coincide with the intersection lines formed by extending the end surfaces of the two rails at the end parts of the frog, finding the rail waist line of the rail through the zero scale lines of the second scale, and arranging a positioning surface aligned with the zero scale lines of the second scale on the wire frame, wherein the distance between the rail waist line of the end surface of the frog and the intersection lines formed by extending the end surfaces of the two rails is determined.
(9) In the invention, the fixing piece is arranged on the sliding plate frame, so that the sliding plate frame can be fixed on the first plate body/the second plate body.
(10) According to the invention, the locking piece is arranged on the sliding plate frame, and the wire frame is fixed on the steel rail of the frog through the sliding plate frame combination on the first plate body and the second plate body.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view of the end face of a rail at the toe end of an acute angle frog in example 1 of the present application;
FIG. 2 is a schematic diagram of a frog working side inspection tool according to embodiment 1 of the present application in use with an acute angle frog;
FIG. 3 is a schematic diagram of the structure of the wire frame in FIG. 2 according to embodiment 1 of the present application;
FIG. 4 is a schematic view showing the structure of the slider body of FIG. 3 according to embodiment 1 of the present application;
FIG. 5 is a schematic view of a wire frame used in combination with an acute angle frog toe in accordance with embodiment 1 of the present application;
FIG. 6 is a schematic view of an obtuse angle frog in embodiment 2 of the application;
the wire frame comprises a first wire frame, a second wire frame, a first 1.1 main plate, a first 1.1.1 first plate body, a second 1.1.2 first plate body, a second 1.2 first plate body, a first sliding plate frame, a second sliding plate frame, a first sliding plate frame, a second sliding plate frame, a first 1.2.1 wire hole, a first 1.2.2 positioning surface, a first 1.2.3 fixing piece, a first 1.2.4 locking piece, a first 1.2.5 chute, a first 1.2.6 chute, a second 1.2.7a first L-shaped epitaxial support, a first 1.2.7b L-shaped epitaxial support, a second 2 pull wire, a third pull wire, an acute angle frog, a fourth acute angle frog and an obtuse angle frog.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 5, the present embodiment is applied to checking the straightness of the working edge of a high manganese steel acute angle frog blank in a straightening process.
A frog working edge detection tool comprises two wire frames 1 arranged at two ends along the length direction of a frog, in the embodiment, the two wire frames 1 are arranged at the heel end of an acute angle frog 3 and the toe end of the acute angle frog 3, the two wire frames 1 are connected through two stay wires 2, the two stay wires 2 are respectively arranged along the length direction of two working edges of the frog, see fig. 2, one stay wire 2 is arranged along the length direction of the first working edge, the other stay wire 2 is arranged along the length direction of the second working edge, the two stay wires 2 are crossed in a horizontal plane, in the detection process, the stay wires 2 are in a tensioned straight line state, and a detection gap L is reserved between the single stay wire 2 and the corresponding working edge. In this embodiment, a first wire frame 1a is disposed at the toe end of the acute angle frog 3, a second wire frame 1b is disposed at the heel end of the acute angle frog 3, the first wire frame 1a and the second wire frame 1b are connected through two stay wires 2, as shown in fig. 2, whether the working edge has obvious bending can be seen by visual inspection through the parallel condition between the stay wires 2 and the corresponding working edge.
The frog working side detection tool further comprises a measuring tool for measuring the detection gap L between the stay wire 2 and the corresponding working side, wherein the measuring tool can be a ruler with scale marks, and the detection requirement of the frog blank straightness can be met by the measuring accuracy of the ruler being not lower than 1 mm.
The stay wire 2 is located one side of the steel rail, which is provided with a working edge, and a detection gap L between the stay wire 2 and the corresponding working edge is 5-20 mm, so that the distance between the stay wire 2 and the working edge can be conveniently observed and measured. The working edge of the frog blank is generally provided with a machining allowance of 3-5 mm, so that a distance of not less than 5mm is required between the stay wire 2 and the working edge, interference of a convex part with the machining allowance on the frog blank to the stay wire 2 is avoided, the stay wire 2 is not straight, straightness of the working edge is inconvenient to test, and when the distance between the stay wire 2 and the working edge is more than 20mm, the distance between the stay wire 2 and the working edge is inconvenient to measure by a measuring tool.
The wire frame 1 comprises a main plate 1.1, wherein the main plate 1.1 comprises a first plate body 1.1.1 and a second plate body 1.1.2, the first plate body 1.1.1 is connected with the second plate body 1.1.2 to form an included angle I, the included angle I is identical to an included angle II formed by the end faces of two steel rails at two ends of a frog length direction, in the embodiment, the included angle I is identical to an included angle II formed by the end faces of two steel rails at a heel end of an acute angle frog 3 or an included angle III formed by the end faces of two steel rails at a toe end of the acute angle frog 3 (because the included angle II is identical to the included angle III), the main plate 1.1 can be better attached to the end faces of the heel end of the frog 3 and the toe end of the acute angle frog 3, tensioning and fixing are realized on a wire drawing wire 2, and the included angles formed by the end faces of two steel rails at two ends of the frog with different specifications of the same frog number are identical, so that the main plate 1.1 of the same wire frame 1 is suitable for straightness measurement of all the rails with the same number.
In the embodiment, the first plate body 1.1.1 and the second plate body 1.1.2 are symmetrically arranged about the intersection line of the two plate bodies, are suitable for the working edge inspection of the acute angle frog 3, and can realize the joint of the main plate 1.1 and the heel end of the acute angle frog 3 or the two end surfaces of the toe end of the acute angle frog 3.
The wire frame 1 further comprises two sliding plate frames 1.2 which are respectively connected with the first plate body 1.1.1 and the second plate body 1.1.2 in a sliding mode, in the embodiment, a sliding plate frame 1.2a is arranged on the first plate body 1.1.1, a sliding plate frame two 1.2b is arranged on the second plate body 1.1.2, structures of the sliding plate frame 1.2a and the sliding plate frame two 1.2b are symmetrically arranged on intersecting lines of the first plate body 1.1.1 and the second plate body 1.1.2, as shown in fig. 3, wire holes 1.2.1 for connecting the stay wires 2 are formed in the sliding plate frame 1.2, and the positions of the stay wires 2 can be adjusted through sliding the sliding plate frame 1.2 according to the specifications of the acute angle frog 3, as shown in fig. 4. The sliding plate frame 1.2 body is provided with a first sliding groove 1.2.5 and a second sliding groove 1.2.6 which are used for realizing sliding connection with the first plate body 1.1.1/the second plate body 1.1.2.
The first scale is arranged on the first plate body 1.1.1 and the second plate body 1.1.2, the second scale is arranged on the sliding plate frame 1.2 at the position corresponding to the first scale, in the embodiment, zero scale of the first scale is overlapped with the intersection line of the first plate body 1.1.1 and the second plate body 1.1.2 (namely, the intersection line formed by extending the end surfaces of two steel rails at the end parts of the frog), for a fixed type frog, the distance from the middle line of the rail web of the end surface to the intersection line formed by extending the end surfaces of the two steel rails at the end parts of the frog is determined, and then the zero scale line of the second scale is aligned with the corresponding distance value on the first scale, and the zero scale line of the second scale is placed on the end surface of the steel rail, so that the intersection line of the first plate body 1.1.1 and the second plate body 1.2 is overlapped with the intersection line formed by extending the end surfaces of the two steel rails at the two ends of the frog, and the zero scale of the rail can be found through the zero scale line of the second scale, and the subsequent reference line can be provided as a standard rail line.
The slide plate frame 1.2 is also provided with a positioning surface 1.2.2 aligned with zero scale marks of the second scale, the positioning surface 1.2.2 is used for positioning a rail waist central line of the acute angle frog 3, and then the rail waist central line of the rail can be obtained by scribing on the rail along the side line of the positioning surface 1.2.2.
The sliding plate frame 1.2 is also provided with a fixing piece 1.2.3 for realizing the position fixing between the sliding plate frame 1.2 and the first plate body 1.1.1 or between the sliding plate frame 1.2 and the second plate body 1.1.2, in the embodiment, the fixing piece 1.2.3 is a fixing screw, a penetrating screw hole is arranged on the sliding plate frame 1.2 body, the fixing screw 1.2.3 is arranged on the screw hole, and the screw end of the fixing screw abuts against the first plate body 1.1.1 or the second plate body 1.1.2 to realize the position fixing of the sliding plate frame 1.2.
In this embodiment, the sliding plate frame 1.2 is provided with two L-shaped extension brackets, so that the locking piece 1.2.4 installed on the first L-shaped extension bracket 1.2.7a can be abutted against the top surface of the rail, the locking piece 1.2.4 installed on the second L-shaped extension bracket 1.2.7b can be abutted against the outer side surface of the rail web, and the combination of the sliding plate frames 1.2 on the first plate body 1.1.1 and the second plate body 1.1.2 realizes that the wire frame 1 is fixed on two rails at two ends of the frog, namely, at the toe end of the acute angle frog 3 or at the heel end of the acute angle frog 3, as shown in fig. 4 and 5, and the locking piece 1.2.4 is a locking screw in threaded fit with the L-shaped extension bracket.
The use method of the frog working edge detection tool comprises the steps of adjusting the relative positions of the sliding plate frame 1.2 and the first plate body 1.1.1/the second plate body 1.1.2 according to the distance value of an intersection line formed by extending the rail web central line of the acute angle frog 3 to the end surfaces of two steel rails at two ends of the frog, respectively, fixing the sliding plate frame 1.2 through a fixing piece 1.2.3, arranging the two wire frames 1 at two ends of the acute angle frog 3 (namely, the heel end and the toe end of the acute angle frog 3) through locking pieces 1.2.4, enabling the main plates 1.1 of the two wire frames 1 to be respectively attached to the heel end of the acute angle frog 3 or the end surfaces of the steel rails at the toe end of the acute angle frog 3, connecting the two wire frames 1 through two stay wires 2 respectively arranged along the length directions of the two groups of the working edges, enabling the stay wires 2 to be in a stretched state, and finally, measuring whether the working clearance of the blank is obvious by visually inspecting the parallel relation between the stay wires 2 and the corresponding working edges or the bent by detecting the rail web L.
Example 2:
the difference between this embodiment and embodiment 1 is that a frog working edge inspection tool is used to inspect the working edge of the obtuse angle frog 4, and the positions of the skateboard frames 1.2 on the first board body 1.1.1 and the second board body 1.1.2 are asymmetrically arranged (because the distances from the middle line of the rail web of two rails at the same end of the frog to the intersection line formed by the extension of the end faces of the two rails are different).
In this embodiment, two wire frames 1 are disposed at the left end and the right end of the obtuse angle frog 4, two stay wires 2 are disposed along the length direction of two working edges (not illustrated in fig. 6), the intersection line of the first plate body 1.1.1 and the second plate body 1.1.2 coincides with the intersection line formed by extending the end surfaces of the left end or the right end of the frog, and the positions of the sliding plate frames 1.2 on the first plate body 1.1.1 and the second plate body 1.2 are adjusted according to the distance between the waist central line of the two rails at the two ends and the intersection line formed by extending the end surfaces of the two rails, so that the straightness of the working edges of the obtuse angle frog 4 can be checked.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471595.0A CN112504082B (en) | 2020-12-14 | 2020-12-14 | Frog working edge detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471595.0A CN112504082B (en) | 2020-12-14 | 2020-12-14 | Frog working edge detection tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112504082A CN112504082A (en) | 2021-03-16 |
| CN112504082B true CN112504082B (en) | 2025-08-12 |
Family
ID=74973249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011471595.0A Active CN112504082B (en) | 2020-12-14 | 2020-12-14 | Frog working edge detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112504082B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203479242U (en) * | 2013-09-17 | 2014-03-12 | 青岛港（集团）有限公司 | Tension device for standard line for butting circular tube measuring |
| CN213455270U (en) * | 2020-12-14 | 2021-06-15 | 中国铁建重工集团股份有限公司道岔分公司 | Frog working edge inspection tool |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2535762Y (en) * | 2001-04-20 | 2003-02-12 | 刘培元 | Steel-nail frog wear detection ruler |
| CN201803690U (en) * | 2010-10-09 | 2011-04-20 | 高金宏 | Frog point rail abrasion detector |
| CN103076009B (en) * | 2013-01-06 | 2015-05-06 | 长安大学 | Fast lofting method for connecting points of overhead line system of railway tunnel and automatic measuring system |
| CN104515480A (en) * | 2013-09-30 | 2015-04-15 | 大连民族学院 | Guide rail straightness detection device |
| CN104061842B (en) * | 2014-07-10 | 2017-02-15 | 中国重汽集团济南动力有限公司 | Stay wire tool for detecting vehicle framework waist rail and detecting method |
| CN104764381A (en) * | 2015-03-27 | 2015-07-08 | 中铁宝桥集团有限公司 | Dedicated detecting and measuring tool for high manganese steel frog groove width |
| CN108592764A (en) * | 2018-05-30 | 2018-09-28 | 申晓广 | A kind of practical straight line degree measurement fixture and application method |
| CN211178219U (en) * | 2020-02-11 | 2020-08-04 | 郝志 | Combined digital display measurer for steel rail flatness and frog point rail abrasion |
| CN111426258A (en) * | 2020-04-27 | 2020-07-17 | 中冶陕压重工设备有限公司 | Device and method for measuring straightness of track |
| CN111536848A (en) * | 2020-06-15 | 2020-08-14 | 中国铁建重工集团股份有限公司 | measuring tool |
-
2020
- 2020-12-14 CN CN202011471595.0A patent/CN112504082B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203479242U (en) * | 2013-09-17 | 2014-03-12 | 青岛港（集团）有限公司 | Tension device for standard line for butting circular tube measuring |
| CN213455270U (en) * | 2020-12-14 | 2021-06-15 | 中国铁建重工集团股份有限公司道岔分公司 | Frog working edge inspection tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112504082A (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208042983U (en) | A kind of guide rail linearity measuring system | |
| CN113311441A (en) | Dynamic measurement method for positioning point of contact net positioner | |
| CN112504082B (en) | Frog working edge detection tool | |
| CN107024162A (en) | Weaving scutcher leads regulation rule composition error calibration equipment and its application method | |
| CN113124726A (en) | Solebar and longeron sheet material are with examining utensil | |
| CN213455270U (en) | Frog working edge inspection tool | |
| CN214747655U (en) | Measuring scale for width and dislocation value of rail web of steel rail | |
| CN220888173U (en) | Multifunctional detection ruler for frog core rail section | |
| CN221593704U (en) | A multifunctional railway turnout inspection ruler | |
| CN210221750U (en) | Experimental impact specimen V type breach centering measuring device of using | |
| CN208269769U (en) | Detect auxiliary clamp and detection instrument | |
| CN102535275B (en) | Track plate standard frame calibration device | |
| CN117962962A (en) | Frog abrasion detecting ruler and detecting method thereof | |
| CN216275062U (en) | Standard gauge detection frame for railway | |
| US4545102A (en) | Tooling for and method of fabricating master models | |
| CN205860935U (en) | A kind of novel portable stalloy burr detecting tool | |
| CN219805522U (en) | Device for adjusting rail spacing and measuring position of welding core rail | |
| CN114322696A (en) | Comprehensive detection platform and detection method for elastic clamp for heavy-duty track turnout | |
| CN217728717U (en) | Accurate marking device of high manganese steel frog | |
| CN104562878B (en) | Steel rail weld joint glacing flatness detection method on a kind of line | |
| JPH0835801A (en) | Elbow dimension measurement jig | |
| CN217032305U (en) | Measuring sample plate for switch gap | |
| RU2196200C1 (en) | Checking and measuring device for revealing condition of rail tracks | |
| CN219798213U (en) | Rail bottom distortion detection tool | |
| CN106247906B (en) | A kind of profile overall size measurement tooling and measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |