CN112146538A - Full-rail type railhead abrasion measuring device - Google Patents
Full-rail type railhead abrasion measuring device Download PDFInfo
- Publication number
- CN112146538A CN112146538A CN202011105773.8A CN202011105773A CN112146538A CN 112146538 A CN112146538 A CN 112146538A CN 202011105773 A CN202011105773 A CN 202011105773A CN 112146538 A CN112146538 A CN 112146538A
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- Prior art keywords
- measuring
- rail
- rod
- frame
- head
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- 238000005299 abrasion Methods 0.000 title abstract description 23
- 210000000078 claw Anatomy 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
-
- 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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a full-rail type rail head abrasion measuring device, which comprises a caliper body and a caliper frame sliding forwards and backwards on the caliper body, wherein a measuring block capable of adjusting a measuring position in an up-and-down sliding mode is arranged on a measuring claw of the caliper body, a right-angle positioning bayonet is arranged on the rear side of the measuring block, a supporting plate is arranged on the rear side of the measuring claw of the caliper frame, one end of a swing rod is hinged to the supporting plate, a sliding block is arranged on a rod body of the swing rod, a measuring rod is arranged on the sliding block in a sliding mode along the direction vertical to the rod body, a right-angle measuring head consisting of a bottom measuring surface and a top measuring surface is arranged at the front end of the measuring rod, a stop pin limiting the swing rod in a vertical position is arranged on the supporting plate, the top measuring surface of the measuring rod is aligned with the caliper frame. The invention can measure the abrasion of the top and the side of the rail head of the guide rail with different rail types, reduces the types and the number of detection tools required to be equipped, simplifies the operation process and reduces the cost of the detection tools.
Description
Technical Field
The invention relates to a guide rail measuring technology in rail transportation, in particular to a full-rail type rail head abrasion measuring device.
Background
In the process of processing and detecting rails used for rail transportation, rail head abrasion measurement is often required to be carried out on rails with different sizes and shapes.
The rail abrasion instrument in the prior art has a single measuring function, can only measure the rail head top abrasion and the rail head side working face abrasion of a certain specific type of rail, and can be calibrated in advance by using a standard checking tool before the rail abrasion instrument is used, so that the measured rail can be compared and measured to obtain the rail head top abrasion and the rail head side working face abrasion.
The existing rail abrasion meter can only measure a certain specific rail and has high requirements on a standard check tool for zero and a working environment; meanwhile, each work section of the railway transportation department must be provided with rail wear gauges of different types and different standard checking tools because rails of different rail types need to be measured, so that the rail transportation department is not favorable for reducing the cost and managing tools, and the rail transportation department cannot adapt to the rapid measurement requirements of different rails in the rapid development of modern rail transportation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a full-rail type rail head abrasion measuring device capable of detecting the abrasion of rail heads with different specifications and models.
The full-rail type rail head abrasion measuring device capable of solving the technical problem comprises a caliper body and a caliper frame which slides forwards and backwards on the caliper body, wherein a caliper frame measuring head which is arranged on a caliper body measuring claw is opposite to a caliper frame measuring head which is arranged on a caliper frame measuring claw, the caliper frame measuring head is zero in measuring head distance, a reading ruler I on the caliper frame and a graduated scale I on the caliper body are opposite to 0 or the digital display screen on the caliper frame is opposite to 0, and the difference is that:
1. the measuring block is arranged on the measuring jaw of the ruler body, the measuring block is capable of adjusting the measuring position in an up-and-down sliding mode (so as to adapt to the measurement of rails of different models), a right-angle positioning clamping head composed of a vertical positioning face and a horizontal positioning face is arranged on the rear side of the measuring block, the vertical face of the right-angle positioning clamping head is flush with the measuring face of the measuring head of the ruler body, and the horizontal positioning face of the right-angle positioning clamping head is perpendicular to the measuring face of the measuring head of the.
2. The ruler frame measuring claw rear side is equipped with the backup pad, the vertical dead lever that installs downwards in the backup pad, be equipped with the slider on the body of rod of dead lever (slide along the body of rod), it is equipped with the measuring staff to slide along the perpendicular to body of rod direction on the slider, the front end of measuring staff is for surveying the right angle gauge head that the face constitutes by end survey face and top, the top survey face of measuring staff is to the survey face of alignment ruler frame gauge head, and reading chi II on the measuring staff is to "0" with scale II on the slider.
3. The slide caliper is characterized in that locking pieces for locking the slide position of the caliper rule frame, the measuring block, the sliding block and the measuring rod are arranged between the caliper rule body and the caliper rule frame, between the caliper rule body measuring claw and the measuring block, between the sliding block and the fixed rod and between the measuring rod and the sliding block.
Furthermore, one scale mark is carved on the ruler body measuring claw corresponding to the model of a railway to be measured, or more than two scale marks are carved on the ruler body measuring claw from top to bottom, and different scale marks correspond to the model of the railway to be measured.
In order to adapt to the measurement of various types of rails, the uppermost scale mark corresponds to the measurement position of the largest heavy rail and the lowermost scale mark corresponds to the measurement position of the smallest light rail in the plurality of scale marks.
Further, the right angle positioning clamping head is a right angle positioning clamping opening arranged on the measuring block.
Furthermore, the fixed rod is hinged to the supporting plate to form a swing rod, the supporting plate is provided with a stop pin for limiting the swing rod swinging forwards to a vertical position, and a locking piece for locking the swing position of the swing rod is arranged between the supporting plate and the swing rod.
The invention has the beneficial effects that:
when the full-rail type rail head abrasion measuring device is used for detecting the rails, various standard detecting tools are not required to be equipped for zero setting of various types of abrasion instruments, each work section only needs one measuring device to carry out absolute measurement on abrasion of all types of rails, and the full-rail type rail head abrasion measuring device is economical, practical, simple in structure, flexible to adjust and suitable for measuring abrasion of various types of rails by rail traffic departments.
Drawings
FIG. 1 is a front view of one embodiment of the present invention.
Fig. 2 is a rear view of the embodiment of fig. 1.
Fig. 3 is a schematic diagram of the embodiment of fig. 1 measuring the wear on the top of the UIC50 type rail head.
Fig. 4 is a schematic diagram of the embodiment of fig. 1 for measuring the wear of the rail head side working surface of various types of guide rails.
Fig. 5 is a schematic diagram of the embodiment of fig. 1 measuring the height difference between the top of the UIC60 type guide rail head and the top of the guard rail head thereof.
And (3) identifying the figure number: 1. a caliper body; 1-1, measuring the jaw of the ruler body; 1-2 measuring heads of the ruler body; 2. a caliper frame; 2-1, measuring claws of a ruler frame; 2-2, measuring a ruler frame measuring head; 3. measuring blocks; 4. a support plate; 5. a swing rod; 6. a slider; 7. a measuring rod; 8. a stop pin; 9. a rail; 10. and a limiting pin.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The invention relates to a full-rail type rail head abrasion measuring device, which comprises a caliper rule body 1 and a caliper rule frame 2, wherein the caliper rule frame 2 is arranged on the caliper rule body 1 and can be manually operated on the caliper rule body 1 to slide forwards and backwards, a backward caliper rule measuring head 1-2 is arranged at the bottom of a rule body measuring claw 1-1 of the caliper rule body 1, a plurality of scale lines are carved on the rule body measuring claw 1-1 from top to bottom, the scale lines are respectively the measuring positions of a model UIC60 (maximum heavy rail), a model UIC50 … … UIC38 (minimum light rail) or other models of rails 9 specified by the International railway Association, the sizes of the rails 9 of models UIC60 and UIC50 … … UIC38 are gradually reduced, a measuring head 2-2 opposite to the caliper rule body measuring head 1-2 is arranged at the bottom of a rule frame measuring claw 2-1 of the caliper rule frame 2, and the distance between the measuring head 1-2 and the rule frame 2 is zero (two abutting surfaces of the measuring head and the measuring surface is abutted against each other measuring surface of the caliper rule frame 2-2) At this moment, the reading ruler I on the caliper ruler frame 2 and the graduated scale I on the caliper ruler body 1 are opposite to '0', and the rear stop position of the caliper ruler frame 2 is limited by a screw at the rear end of the caliper ruler body 1, as shown in fig. 1 and 2.
The measuring block 3 is arranged on the ruler body measuring claw 1-1 in a sliding mode, the position can be adjusted up and down manually to adapt to measurement of a certain type of rail 9, a right-angle positioning bayonet (one type of a right-angle positioning chuck) is formed in the rear side face of the measuring block 3, the vertical face of the right-angle positioning bayonet is aligned with the rear end measuring face of the ruler body measuring head 1-2 downwards, and the horizontal plane of the right-angle positioning bayonet exceeds the rear end measuring face of the ruler body measuring head 1-2 backwards, as shown in fig. 1 and 2.
A supporting plate 4 is arranged between the rear upper part of the caliper frame measuring claw 2-1 and the lower part of the caliper frame 2, the upper end of a swing rod 5 is hinged on the supporting plate 4, the swing rod 5 can manually adjust the swing position forwards and backwards, a stop pin 8 is arranged on the supporting plate 4 to limit the forward swing position of the swing rod 5, and the swing rod 5 is in a vertical downward swing position at the limit position of the stop pin 8; a slide block 6 is arranged on the rod body of the swing rod 5, a measuring rod 7 is arranged on the slide block 6 along the direction vertical to the rod body, the front end of the measuring rod 7 is a right-angle measuring head consisting of a bottom measuring surface and a top measuring surface, the slide block 6 can be manually adjusted up and down on the swing rod 5, the measuring rod 7 can be manually adjusted up and down on the slide block 6, a limiting pin 10 (one type of limiting structure) is arranged on the ruler frame measuring claw 2-1 and is used for limiting the upward sliding position of the measuring rod 7, and when a reading ruler II on the measuring rod 7 and a graduated ruler II on the slide block 6 are aligned to be 0, the top measuring surface (on the vertical surface) of the measuring rod 7 is downwards aligned with the front end measuring surface of the ruler frame measuring head 2-2, as shown in fig. 1 and fig. 2.
Locking pieces for locking the adjusting positions of the caliper rule frame 2, the measuring block 3, the sliding block 6 and the measuring rod 7 are arranged between the caliper rule body 1 and the caliper rule frame 2, between the caliper rule body measuring claw 1-1 and the measuring block 3, between the sliding block 6 and the oscillating rod 5 and between the measuring rod 7 and the sliding block 6, and locking pieces for locking the oscillating position of the oscillating rod 5 are arranged between the supporting plate 4 and the oscillating rod 5, as shown in fig. 1 and 2.
In order to measure the wear of the top of the UIC50 rail head 9 using the present invention, as shown in the first embodiment of fig. 3:
1. the position of the block 3 is adjusted so that the top surface of the block 3 is compacted to the UIC50 scale line.
2. The adjusting pendulum rod 5 swings back to make it not interfere with the measuring process.
3. The caliper frame 2 is slid rearwardly so that the distance between the body jaw 1-1 and the frame jaw 2-1 is greater than the height dimension of the UIC50 rail 9.
4. The ruler body measuring claw 1-1 and the ruler frame measuring claw 2-1 are clamped into a UIC50 type rail 9, the right-angle positioning bayonet of the measuring block 3 is clamped at the junction of the bottom and the side of one side of the UIC50 type rail 9, and the ruler body measuring head 1-2 is abutted against the bottom of the UIC50 type rail 9.
5. Sliding the caliper frame 2 forward causes the frame stylus 2-2 to abut the top of the UIC50 rail 9.
6. The position of the caliper frame 2 is locked, the caliper is taken off, and the height dimension of the top of the UIC50 type rail 9 is read through the position relation of the reading ruler I and the dividing ruler I.
7. The measured actual height dimension of the top of the UIC50 rail 9 is compared with the standard height dimension of the top of the UIC50 rail 9 to determine the wear of the measured top of the UIC50 rail 9.
In order to measure the wear of the head-side working surface of any type of rail 9 according to the invention, as shown in the second embodiment of fig. 4:
1. the adjusting measuring block 3 is arranged at any position which is independent of the scale marks.
2. The adjusting swing rod 5 swings forwards and is located at a vertical position, the measuring rod 7 slides forwards to a proper position, the sliding block 6 is adjusted upwards until the measuring rod 7 is limited at the limiting pin 10, and at the limiting position, the distance between the bottom measuring surface of the measuring rod 7 and the center of the measuring head 2-2 of the ruler frame meets the requirement of the position measuring height of the rail side.
3. The caliper frame 2 is slid rearwardly so that the distance between the body jaw 1-1 and the frame jaw 2-1 is greater than the width dimension of the top of the rail 9.
4. The ruler body measuring claw 1-1 and the ruler frame measuring claw 2-1 are clamped into a rail 9, and the ruler body measuring head 1-2 and the ruler frame measuring head 2-2 are aligned to two rail sides of the rail 9.
5. The caliper frame 2 is slid forwards, so that the caliper body measuring head 1-2 and the caliper frame measuring head 2-2 clamp two rail sides of the rail 9, and the bottom measuring surface of the right-angle measuring head of the measuring rod 7 is positioned at the top of the rail 9.
6. And locking the position of the caliper frame 2, taking down the caliper, and reading the width of the rail head side working face of the rail 9 through the position relation between the reading ruler I and the dividing ruler I.
7. And comparing the measured actual width dimension of the rail head side working surface of the rail 9 with the standard width dimension of the rail head side working surface of the rail 9 to obtain the abrasion of the rail head side working surface of the measured rail 9.
In the third embodiment shown in fig. 5, in order to measure the height difference between the top of the guard rail and the top of the main rail of the UIC 60-type rail 9 using the present invention:
1. the position of the measuring block 3 is adjusted so that the top surface of the measuring block 3 is compacted on the UIC60 scale line.
2. The adjusting swing rod 5 swings forwards to a vertical position, the slide block 6 is adjusted downwards to a position lower than the ruler frame measuring head 2-2, and the measuring rod 7 slides backwards to enable the right-angle measuring head to exceed the ruler frame measuring head 2-2.
3. The caliper frame 2 is slid rearwardly so that the distance between the body jaw 1-1 and the frame jaw 2-1 is greater than the height dimension of the UIC60 rail 9 (main rail).
4. The ruler body measuring claw 1-1 and the ruler frame measuring claw 2-1 are clamped into a main rail of a UIC60 type rail 9, the right-angle positioning bayonet of the measuring block 3 is clamped at the junction of the bottom and the side of one side of the main rail of the UIC60 type rail 9, and the ruler body measuring head 1-2 is abutted against the bottom of the main rail of the UIC60 type rail 9.
5. Sliding the caliper frame 2 forward causes the frame feeler 2-2 to abut the top of the UIC60 rail 9 main rail and the measuring bar 7 to slide forward against the top of the UIC60 rail 9 guard rail.
6. And locking the position of the caliper frame 2 and the position of the measuring rod 7, taking off the caliper, and reading the height difference between the top of the guard rail and the top of the main rail of the UIC60 type rail 9 through the position relation between the reading ruler II and the dividing ruler II between the measuring rod 7 and the sliding block 6.
Claims (7)
1. Full rail type rail head wearing and tearing measuring device, including slide caliper rule blade (1) and slide caliper rule frame (2) before, after on slide caliper rule blade (1), the blade gauge head (1-2) that sets up on blade measuring claw (1-1) of slide caliper rule blade (1) is relative with the frame gauge head (2-2) that sets up on frame measuring claw (2-1) of slide caliper rule frame (2) and is put, blade gauge head (1-2) and frame gauge head (2-2) distance are zero, reading chi I on slide caliper rule frame (2) and scale chi I on slide caliper rule blade (1) are to "0", or the number screen display on slide caliper rule frame (2) shows "0", its characterized in that:
the ruler body measuring claw (1-1) is provided with a measuring block (3) capable of adjusting the measuring position in an up-and-down sliding manner, the rear side of the measuring block (3) is provided with a right-angle positioning chuck consisting of a vertical positioning surface and a horizontal positioning surface, the vertical positioning surface is flush with the measuring surface of the ruler body measuring head (1-2), and the horizontal positioning surface of the right-angle positioning chuck is perpendicular to the measuring surface of the ruler body measuring head (1-2);
a supporting plate (4) is arranged on the rear side of the ruler frame measuring claw (2-1), a fixed rod is vertically and downwardly installed on the supporting plate (4), a sliding block (6) is arranged on a rod body of the fixed rod, a measuring rod (7) is arranged on the sliding block (6) in a sliding mode along the direction perpendicular to the rod body, a right-angle measuring head formed by a bottom measuring surface and a top measuring surface is arranged at the front end of the measuring rod (7), the top measuring surface of the measuring rod (7) is aligned with the measuring surface of the ruler frame measuring head (2-2), and a reading ruler II on the measuring rod (7) and a graduated ruler II on the sliding block (6) are aligned to be 0%;
the slide caliper is characterized in that locking pieces for locking the slide positions of the caliper frame (2), the measuring block (3), the sliding block (6) and the measuring rod (7) are arranged between the caliper frame (1) and the caliper frame (2), between the caliper measuring claw (1-1) and the measuring block (3), between the sliding block (6) and the fixed rod and between the measuring rod (7) and the sliding block (6).
2. The all-rail-type railhead wear measuring device according to claim 1, characterized in that: one scale mark is carved on the ruler body measuring claw (1-1) corresponding to the model of a rail to be measured, or more than two scale marks are carved on the ruler body measuring claw (1-1) from top to bottom, and different scale marks correspond to the model of the rail (9) to be measured.
3. The all-rail-type railhead wear measuring device according to claim 2, characterized in that: of the plurality of scale lines, the uppermost scale line corresponds to a measurement position of the largest heavy-duty rail (9), and the lowermost scale line corresponds to a measurement position of the smallest light-duty rail (9).
4. The all-rail-type rail head wear measuring device according to any one of claims 1 to 3, wherein: and a limiting structure for limiting the upper sliding position of the measuring rod (7) is arranged between the measuring claw (2-1) of the ruler frame and the measuring rod (7) or between the fixed rod and the sliding block (6).
5. The all-rail-type railhead wear measuring device according to claim 4, wherein: the limiting structure comprises a limiting pin (10) arranged on the ruler frame measuring claw (2-1), or the limiting structure is a scale mark carved on the fixed rod.
6. The all-rail-type rail head wear measuring device according to any one of claims 1 to 3, wherein: the right-angle positioning clamping head is a right-angle positioning clamping opening arranged on the measuring jaw (1-1) of the ruler body.
7. The all-rail-type rail head wear measuring device according to any one of claims 1 to 3, wherein: the fixing rod is hinged to the supporting plate (4) to form a swing rod (5), a stop pin (8) for limiting the swing rod (5) swinging forwards to a vertical position is arranged on the supporting plate (4), and a locking piece for locking the swing position of the swing rod (5) is arranged between the supporting plate (4) and the swing rod (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105773.8A CN112146538A (en) | 2020-10-15 | 2020-10-15 | Full-rail type railhead abrasion measuring device |
| PCT/CN2021/095693 WO2022077911A1 (en) | 2020-10-15 | 2021-05-25 | Full-rail-type rail head wear measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105773.8A CN112146538A (en) | 2020-10-15 | 2020-10-15 | Full-rail type railhead abrasion measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112146538A true CN112146538A (en) | 2020-12-29 |
Family
ID=73952103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011105773.8A Withdrawn CN112146538A (en) | 2020-10-15 | 2020-10-15 | Full-rail type railhead abrasion measuring device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112146538A (en) |
| WO (1) | WO2022077911A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124730A (en) * | 2021-05-12 | 2021-07-16 | 卜少明 | Rail head measuring scale |
| WO2022077911A1 (en) * | 2020-10-15 | 2022-04-21 | 卜少明 | Full-rail-type rail head wear measuring device |
| WO2023130515A1 (en) * | 2022-01-07 | 2023-07-13 | 卜少明 | Gauge frame of all-rail type rail abrasion measurement gauge, measurement gauge and use method |
| WO2023197424A1 (en) * | 2022-04-15 | 2023-10-19 | 卜少明 | Rail head abrasion instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114987795B (en) * | 2022-06-01 | 2024-07-26 | 沈阳飞机工业（集团）有限公司 | Device and method for measuring extension of piston rod of aircraft actuator cylinder |
| CN115235310B (en) * | 2022-07-18 | 2023-09-08 | 靖江量具有限公司 | Dovetail groove measuring caliper convenient to use |
| CN115854814A (en) * | 2022-12-23 | 2023-03-28 | 佳木斯电机股份有限公司 | General calibration tool for pitch-adjustable stator coil interturn gelling equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019088864A1 (en) * | 2017-10-31 | 2019-05-09 | Акционерное Общество Инструментальный Завод "Красный Треугольник" | Track slide gauge |
| CN212843285U (en) * | 2020-10-15 | 2021-03-30 | 卜少明 | Full-rail type railhead abrasion measuring device |
Family Cites Families (4)
| 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 |
| RU2206868C2 (en) * | 2001-08-17 | 2003-06-20 | Петербургский государственный университет путей сообщения | Rail wear tester |
| CN209326500U (en) * | 2019-02-28 | 2019-08-30 | 中铁物总技术有限公司 | A kind of rail variable cross-section dimensional measurement ruler |
| CN112146538A (en) * | 2020-10-15 | 2020-12-29 | 卜少明 | Full-rail type railhead abrasion measuring device |
-
2020
- 2020-10-15 CN CN202011105773.8A patent/CN112146538A/en not_active Withdrawn
-
2021
- 2021-05-25 WO PCT/CN2021/095693 patent/WO2022077911A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019088864A1 (en) * | 2017-10-31 | 2019-05-09 | Акционерное Общество Инструментальный Завод "Красный Треугольник" | Track slide gauge |
| CN212843285U (en) * | 2020-10-15 | 2021-03-30 | 卜少明 | Full-rail type railhead abrasion measuring device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077911A1 (en) * | 2020-10-15 | 2022-04-21 | 卜少明 | Full-rail-type rail head wear measuring device |
| CN113124730A (en) * | 2021-05-12 | 2021-07-16 | 卜少明 | Rail head measuring scale |
| WO2023130515A1 (en) * | 2022-01-07 | 2023-07-13 | 卜少明 | Gauge frame of all-rail type rail abrasion measurement gauge, measurement gauge and use method |
| WO2023197424A1 (en) * | 2022-04-15 | 2023-10-19 | 卜少明 | Rail head abrasion instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022077911A1 (en) | 2022-04-21 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201229 |