CN113525449A - Measuring wheel device and rail inspection trolley - Google Patents
Measuring wheel device and rail inspection trolley Download PDFInfo
- Publication number
- CN113525449A CN113525449A CN202110846692.1A CN202110846692A CN113525449A CN 113525449 A CN113525449 A CN 113525449A CN 202110846692 A CN202110846692 A CN 202110846692A CN 113525449 A CN113525449 A CN 113525449A
- Authority
- CN
- China
- Prior art keywords
- measuring
- measuring wheel
- rail
- wheel device
- inspection trolley
- 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.)
- Pending
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 44
- 230000001681 protective effect Effects 0.000 claims description 17
- 230000004323 axial length Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a measuring wheel device and a rail inspection trolley, wherein the measuring wheel device comprises a fixed seat, a wheel shaft assembly and a measuring wheel, the wheel shaft assembly is arranged in the fixed seat, and the measuring wheel is rotatably arranged at the lower end of the fixed seat through the wheel shaft assembly; the measuring wheel comprises a measuring part, a guide part and an avoiding part, the measuring part is circumferentially arranged on the outer wall of the measuring wheel, the measuring part is provided with the avoiding part towards one side of the fixed seat, and the guide part is arranged on the other side of the measuring part. The rail fat edge is avoided through the avoidance part arranged on the measuring wheel, the running stability of the rail inspection trolley on the rail is improved, furthermore, the guide part is arranged on the other side of the measuring part, the rail inspection trolley enters or exits from the working state guide through the guide part, the mounting efficiency of the rail inspection trolley on the rail is improved, the problem that the measuring precision of the rail gauge is reduced due to the fact that the rail inspection trolley cannot run stably on a fat edge road section of the rail in the prior art is solved, and the technical problem that the guide structure is difficult to mount and position on the rail is solved.
Description
Technical Field
The invention relates to the technical field of rail gauge measurement, in particular to a measuring wheel device and a rail inspection trolley.
Background
With the rapid development of railway industry in China, the train operation speed is continuously improved, and the precision requirement on the measurement and control of the geometric parameters of the railway track is higher and higher.
The typical digital precise measurement scheme of the geometric parameters of the railway track is a track inspection tester and a track measuring instrument, wherein the track inspection tester and the track measuring instrument are both track inspection trolleys moving along the railway track, measuring wheels arranged at two ends of each track inspection trolley are driven by a tensioning mechanism to be outwards expanded during measurement, action edges of the inner walls of the tracks at the left side and the right side are closely attached to determine and maintain the transverse movement measurement posture of the track inspection trolleys, and the relative expansion amount of the measuring wheels at the two ends is measured through a high-precision displacement sensor and converted into a measurement result of the track gauge of the track.
During routine design, the measuring wheel can adopt cylindrical structure usually, and when columniform measuring wheel had the district's section of fat limit through the track, cylindrical measuring wheel and fat limit interact can make the rail examine the dolly and produce and rock, and the rail examines the dolly and can't smooth running on the track, can lead to gauge measurement accuracy to descend, and in addition, columniform measuring wheel is difficult to examine the dolly installation with the rail and is positioned the track.
Disclosure of Invention
Based on the above, the invention aims to provide a measuring wheel device and a rail inspection trolley, which are used for solving the technical problems that the measurement precision of a gauge is reduced and a guide structure is lacked and the rail inspection trolley is difficult to install and position on a track because the rail inspection trolley cannot run stably on a fat section of the track in the prior art.
The measuring wheel device comprises a fixed seat, a wheel shaft assembly and a measuring wheel, wherein the wheel shaft assembly is arranged in the fixed seat, and the measuring wheel is rotatably arranged at the lower end of the fixed seat through the wheel shaft assembly;
the measuring wheel comprises a measuring part, a guide part and an avoiding part, wherein the measuring part is circumferentially arranged on the outer wall of the measuring wheel, the measuring part faces one side of the fixing seat and is provided with the avoiding part, and the other side of the measuring part is provided with the guide part.
The measuring wheel device realizes the stable running of the rail inspection trolley on the rail by arranging the avoiding part on the measuring wheel to avoid the rail fat edge, replaces the measuring wheel with the traditional cylindrical structure, and particularly, the measuring wheel device is arranged at the left end and the right end of the rail inspection trolley through the fixed seat, when the rail inspection trolley runs on the rail, the avoidance part arranged on one side of the measuring part facing the fixed seat avoids the track fat edge, so that the measuring wheel is not contacted with the track fat edge, the running stability of the rail inspection trolley on the track is improved, and further, the other side of the measuring part is provided with the guide part, the rail inspection trolley is guided to enter or exit from the working state through the guide part, the installation efficiency of the rail inspection trolley on the rail is improved, and the technical problems that the rail inspection trolley cannot stably run on a fat road section of the rail to cause the reduction of the measurement precision of the rail gauge and the lack of a guide structure to be difficult to install and position on the rail in the prior art are solved.
Further, the measuring wheel device, wherein the measuring part is a knife edge formed by the intersection of the avoiding part and the guiding part, and the avoiding part and the guiding part are conical inclined planes symmetrically arranged on two sides of the measuring part.
Further, the measuring wheel device, wherein the wheel axle assembly includes a support bearing disposed in the fixing seat, and a rotating shaft rotatably disposed in the fixing seat through the support bearing, the lower end of the rotating shaft extends out of the fixing seat, and the measuring wheel is connected to the lower end of the rotating shaft.
Further, the measuring wheel device, wherein, the measuring wheel device still including locate the protective bracket on the fixing base.
Further, the measuring wheel device, wherein, the protective bracket is the U type structure, just the tip of protective bracket both sides is equipped with first mounting hole respectively, first mounting hole is used for the protective bracket is fixed in the fixing base.
Further, the measuring wheel device, wherein, the protection support is the composite construction of U type steelframe and insulating protection board riveting.
Further, the measuring wheel device, wherein, be equipped with the second mounting hole on the fixing base, the second mounting hole is used for the measuring wheel device is fixed in the rail inspection dolly.
Further, the measuring wheel device, wherein the measuring part is a knife edge formed by the intersection of the avoiding part and the guide part, the avoiding part is a conical inclined plane, and the guide part is any one of a conical inclined plane or a horizontal plane of which the axial length is smaller than that of the avoiding part.
Further, the measuring wheel device, wherein the distance L between the measuring part and the top surface of the rail is 16 mm.
On the other hand of this application still provides a track inspection dolly, includes the measuring wheel device in above-mentioned technical scheme.
Drawings
FIG. 1 is a schematic perspective view of a measuring wheel device according to a first embodiment of the present invention;
FIG. 2 is an exploded view of a measuring wheel assembly according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a measuring wheel according to a first embodiment of the present invention;
FIG. 4 is a schematic view of the relationship between the position of the measuring wheel and the track according to the first embodiment of the present invention;
FIG. 5 is a schematic structural view of a measuring wheel according to a second embodiment of the present invention;
description of the main element symbols:
| fixed |
10 | Second mounting hole | 11 |
| |
20 | |
21 |
| Support bearing | 22 | Measuring |
30 |
| Measuring |
31 | Avoiding |
32 |
| |
33 | |
41 |
| |
42 | |
50 |
| |
51 |
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, a measuring wheel device in a first embodiment of the present invention is shown, including a fixed seat 10, a transmission assembly and a measuring wheel 30, in this embodiment, the transmission assembly is disposed in a circular cavity in the fixed seat 10, the measuring wheel 30 is connected to the transmission assembly and disposed at a lower end of the fixed seat 10, and the measuring wheel 30 is used to press inner walls of left and right sides of a track, wherein the measuring wheel 30 includes a measuring portion 31, a guiding portion 33 and an avoiding portion 32, the measuring portion 31 is circumferentially disposed at a centerline position of an outer wall of the measuring wheel 30, the avoiding portion 32 is disposed at one side of the measuring portion 31 facing the fixed seat 10, the guiding portion 33 is disposed at the other side of the measuring portion 31, the guiding portion 33 is used for guiding the rail inspection trolley to enter or exit a working state, and the avoiding portion 32 is used for the measuring wheel 30 to avoid a fat edge 51 of the track.
Specifically, the measuring portion 31 is a blade-shaped edge formed by intersecting the avoiding portion 32 and the guiding portion 33, and the avoiding portion 32 and the guiding portion 33 are conical inclined surfaces symmetrically arranged on two sides of the measuring portion 31. Understandably, when the rail inspection trolley runs on the track 50, the tapered inclined plane arranged on the side wall of the measuring wheel 30 can effectively avoid the track fat edge 51, the measuring wheel 30 only runs by attaching the measuring part 31 to the inner wall of the track 50, the stable running of the rail inspection trolley on the track 50 is ensured, the measuring precision of the rail gauge is further improved, the guide part 33 symmetrically arranged with the avoiding part 32 is a reverse tapered inclined plane, and the rail inspection trolley enters or exits from a normal working state through the guide of attaching the inclined plane to the track.
In this embodiment, the knife-edge-shaped edge of the measuring wheel 30 is a short cylinder with an axial length of 1mm-3mm, but not limited thereto, specifically, the lower edge of the short cylinder is an effective working edge of the working portion of the measuring wheel 30, and it is worth mentioning that the knife-edge-shaped edge is designed into a short cylinder-shaped structure, so that the strength and rigidity of the measuring portion 31 are increased, the service life of the measuring wheel 30 is prolonged, meanwhile, the manufacturing difficulty is reduced, and the batch production and manufacturing are facilitated.
Specifically, the wheel axle assembly 20 includes a support bearing 22 disposed in the fixing base 10, and a rotating shaft 21 rotatably disposed in the fixing base 10 through the support bearing 22, a lower end of the rotating shaft 21 extends out of the fixing base 10, and the measuring wheel 30 is connected to a lower end of the rotating shaft 21. Understandably, the bearing arranged in the fixed seat 10 further improves the rotating effect of the rotating shaft 21, and prevents the rotating shaft 21 from being stuck to reduce the detection precision of the measuring wheel 30.
Further, the measuring wheel device further comprises a protection support 41 arranged on the fixed seat 10, and the protection support 41 is used for protecting the measuring wheel 30 so as to prevent the measuring wheel from being accidentally knocked. Specifically, the protective bracket 41 is of a U-shaped structure, and the end portions of the two sides of the protective bracket 41 are respectively provided with a first mounting hole 42, and the first mounting hole 42 is used for fixing the protective bracket 41 to the fixing seat 10. Alternatively, the protective bracket 41 may be fixed to the lower end of the fixed seat 10 by bolts passing through the first mounting holes 42, but is not limited thereto, and may also be fixed by other connection means such as screws, rivets, and the like.
Further, protective bracket 41 is the fixed composite construction of U type steelframe and insulating protection plate riveting, can understand ground, through increasing insulating protection plate, avoids operating personnel misoperation, leads to protective bracket 41 to collide with the track of on-state, causes the circuit short circuit, has increased the security performance of rail inspection dolly from this.
Further, in this embodiment, the protection bracket 41 can also be a U-shaped insulating protection block, so that the whole structure of the protection bracket 41 is simplified while the insulating purpose is achieved, and the rail inspection trolley is favorably assembled and paired through the integrated structural design.
Further, a second mounting hole 11 is formed in the fixing seat 10, and the second mounting hole 11 is used for fixing the measuring wheel device to the rail inspection trolley. Optionally, the fixing seat 10 is mounted on the rail inspection trolley by bolts passing through the second mounting holes 11.
Further, the distance L between the measuring portion 31 and the top surface of the rail 50 is 16 mm. Considering based on the position of track fat limit 51, track 50 receives the track fat limit 51 that the train heavy pressure produced apart from 50 top surfaces of track mostly all in 15mm, and in this embodiment, measuring part 31 locates track 50 top surface downside 16mm department, has rationally avoided track fat limit 51 when guaranteeing measurement accuracy, has improved the overall structure utilization ratio of measuring wheel device.
Referring to fig. 5, a measuring wheel device according to a second embodiment of the present invention is shown, wherein the difference between the measuring wheel device of the present embodiment and the measuring wheel device of the first embodiment is: the measuring part 31 is a knife edge formed by the intersection of the avoiding part 32 and the guiding part 33, the avoiding part 32 is a conical inclined surface, and the guiding part 33 is any one of a conical inclined surface or a horizontal plane of which the axial length is smaller than that of the avoiding part 32. Specifically, the guide portion 33 is a conical inclined surface with an axial length shorter than that of the avoiding portion 32, and the axial length of the guide portion 33 is shortened, so that the measuring wheel achieves the effect of avoiding the rail fat edge 51, and the capability of avoiding vertical obstacles of the measuring wheel is increased.
The third embodiment of the invention provides a rail inspection trolley which comprises the measuring wheel device in the technical scheme.
In summary, the measuring wheel device in the above embodiments of the present invention, by providing the avoiding portion on the measuring wheel to avoid the fat edge of the rail, realizes the stable operation of the rail inspection trolley on the rail, and replaces the measuring wheel with the conventional cylindrical structure, specifically, the measuring wheel device is installed at the left and right ends of the rail inspection trolley through the fixing base, when the rail inspection trolley operates on the rail, the avoiding portion provided at one side of the measuring portion facing the fixing base avoids the fat edge of the rail, so that the measuring wheel does not contact with the fat edge of the rail, and the stability of the operation of the rail inspection trolley on the rail is improved, further, the guide portion is provided at the other side of the measuring portion, and the rail inspection trolley is guided to enter or exit the working state through the guide portion, so that the installation efficiency of the rail inspection trolley on the rail is improved, and the problem that the measurement accuracy of the gauge is reduced due to the fact that the rail inspection trolley cannot stably operate on the fat edge section of the rail in the prior art is solved, and the technical problem that the guide structure is difficult to install and position on the track is solved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A measuring wheel device is applied to a rail inspection trolley and is characterized by comprising a fixed seat, a wheel shaft assembly and a measuring wheel, wherein the wheel shaft assembly is arranged in the fixed seat, and the measuring wheel is rotatably arranged at the lower end of the fixed seat through the wheel shaft assembly;
the measuring wheel comprises a measuring part, a guide part and an avoiding part, wherein the measuring part is circumferentially arranged on the outer wall of the measuring wheel, the measuring part faces one side of the fixing seat and is provided with the avoiding part, and the other side of the measuring part is provided with the guide part.
2. The measuring wheel device according to claim 1, wherein the measuring portion is a knife edge formed by intersection of the avoiding portion and the guiding portion, and the avoiding portion and the guiding portion are conical slopes symmetrically arranged on two sides of the measuring portion.
3. The measuring wheel device as claimed in claim 1, wherein the wheel axle assembly comprises a support bearing disposed in the fixing base, and a rotating shaft rotatably disposed in the fixing base through the support bearing, a lower end of the rotating shaft extends out of the fixing base, and the measuring wheel is connected to a lower end of the rotating shaft.
4. The measuring wheel device of claim 1, further comprising a protective bracket disposed on the mounting base.
5. The measuring wheel device according to claim 4, wherein the protective bracket is of a U-shaped structure, and first mounting holes are respectively formed in end portions of two sides of the protective bracket and used for fixing the protective bracket to the fixing seat.
6. The measuring wheel device according to claim 4, wherein the protective bracket is a composite structure formed by riveting a U-shaped steel frame and an insulating protective plate.
7. The measuring wheel device of claim 1, wherein the fixing base is provided with a second mounting hole, and the second mounting hole is used for fixing the measuring wheel device on a rail inspection trolley.
8. The measuring wheel device according to claim 1, wherein the measuring portion is a knife edge formed by intersection of the avoiding portion and the guide portion, the avoiding portion is a conical inclined surface, and the guide portion is any one of a conical inclined surface or a horizontal plane having an axial length smaller than that of the avoiding portion.
9. The measuring wheel device according to claim 1, wherein the distance L of the measuring portion from the top surface of the rail is 16 mm.
10. A rail inspection trolley comprising the measuring wheel device, wherein the measuring wheel device is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110846692.1A CN113525449A (en) | 2021-07-26 | 2021-07-26 | Measuring wheel device and rail inspection trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110846692.1A CN113525449A (en) | 2021-07-26 | 2021-07-26 | Measuring wheel device and rail inspection trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113525449A true CN113525449A (en) | 2021-10-22 |
Family
ID=78120864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110846692.1A Pending CN113525449A (en) | 2021-07-26 | 2021-07-26 | Measuring wheel device and rail inspection trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113525449A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09188246A (en) * | 1996-01-08 | 1997-07-22 | Hitachi Electron Eng Co Ltd | Guiding wheel for simple type track inspection car |
| CN1594001A (en) * | 2004-07-15 | 2005-03-16 | 江西日月明测控工程技术有限公司 | Guide wheel capable of escaping rail rough edge |
| CN201040824Y (en) * | 2006-09-25 | 2008-03-26 | 成都四方瑞邦测控科技有限责任公司 | Data collecting triggering measuring wheel for rail checking instrument |
| CN201106146Y (en) * | 2006-09-25 | 2008-08-27 | 成都四方瑞邦测控科技有限责任公司 | Combined wheel set device of track detecting instrument |
| CN201457413U (en) * | 2009-09-18 | 2010-05-12 | 西安市康铖机械制造有限公司 | Device for protecting measuring wheel or guide wheel of track examination instrument |
| CN204509895U (en) * | 2015-02-13 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | A kind of high speed railway track measuring instrument directive wheel and road wheel combining structure |
| CN205839498U (en) * | 2016-07-07 | 2016-12-28 | 深圳大铁检测装备技术有限公司 | A kind of railway rail detector based on A INS |
| CN111749063A (en) * | 2020-07-17 | 2020-10-09 | 江西日月明测控科技股份有限公司 | Rail inspection mechanism and rail inspection trolley |
| CN113022640A (en) * | 2021-04-16 | 2021-06-25 | 江西日月明测控科技股份有限公司 | Rail inspection trolley |
| CN213653072U (en) * | 2020-08-10 | 2021-07-09 | 江西日月明测控科技股份有限公司 | Gauge measuring instrument |
-
2021
- 2021-07-26 CN CN202110846692.1A patent/CN113525449A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09188246A (en) * | 1996-01-08 | 1997-07-22 | Hitachi Electron Eng Co Ltd | Guiding wheel for simple type track inspection car |
| CN1594001A (en) * | 2004-07-15 | 2005-03-16 | 江西日月明测控工程技术有限公司 | Guide wheel capable of escaping rail rough edge |
| CN201040824Y (en) * | 2006-09-25 | 2008-03-26 | 成都四方瑞邦测控科技有限责任公司 | Data collecting triggering measuring wheel for rail checking instrument |
| CN201106146Y (en) * | 2006-09-25 | 2008-08-27 | 成都四方瑞邦测控科技有限责任公司 | Combined wheel set device of track detecting instrument |
| CN201457413U (en) * | 2009-09-18 | 2010-05-12 | 西安市康铖机械制造有限公司 | Device for protecting measuring wheel or guide wheel of track examination instrument |
| CN204509895U (en) * | 2015-02-13 | 2015-07-29 | 中铁第一勘察设计院集团有限公司 | A kind of high speed railway track measuring instrument directive wheel and road wheel combining structure |
| CN205839498U (en) * | 2016-07-07 | 2016-12-28 | 深圳大铁检测装备技术有限公司 | A kind of railway rail detector based on A INS |
| CN111749063A (en) * | 2020-07-17 | 2020-10-09 | 江西日月明测控科技股份有限公司 | Rail inspection mechanism and rail inspection trolley |
| CN213653072U (en) * | 2020-08-10 | 2021-07-09 | 江西日月明测控科技股份有限公司 | Gauge measuring instrument |
| CN113022640A (en) * | 2021-04-16 | 2021-06-25 | 江西日月明测控科技股份有限公司 | Rail inspection trolley |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2634753C2 (en) | Guide bar for running guide of escalator or travolator | |
| CN102261446B (en) | Transmission element with detection device | |
| CN107748113B (en) | Rail vehicle and rail vehicle wheel wear detection device thereof | |
| AU2006287834B2 (en) | Locomotive wheel reference groove diameter measuring device | |
| CN111547086B (en) | Rail inspection vehicle | |
| CN113525449A (en) | Measuring wheel device and rail inspection trolley | |
| CN213619748U (en) | Track inspection robot driving mechanism and inspection robot thereof | |
| CN212799189U (en) | Rolling guide shoe for large-load elevator | |
| CN207758802U (en) | Both wired quick repetition measurement measured the mileage measurement wheel of vehicle | |
| CN112079239A (en) | Escalator safety apron plate structure and escalator | |
| CN218270563U (en) | Flange connecting bolt monitoring system based on eddy current displacement sensor | |
| US8720343B2 (en) | Transverse-longitudinal perpendicular automatic adjusting apparatus | |
| AU2017100872A4 (en) | Easily-operated shaft extension length detection device | |
| CN215763173U (en) | Shaft play adjusting structure of bucket wheel speed reducer | |
| JP2008201389A (en) | Method for measuring wheel load or horizontal pressure | |
| CN105890730A (en) | Track weighing device | |
| CN201545581U (en) | Elevator traction machine | |
| CN212903002U (en) | Wheel hub bearing platform interval detection device | |
| KR200216177Y1 (en) | Wheel Wear Measurement Gauge | |
| CN220785350U (en) | Axle and vehicle thereof | |
| CN221404253U (en) | Track distance detection device | |
| CN219345266U (en) | Linear slider convenient to assembly | |
| CN219244866U (en) | Auxiliary measuring ruler for tension force of belt of nuclear power fan | |
| AU2017100867A4 (en) | Shaft extension length detection device | |
| AU2017100873A4 (en) | High-reliability shaft extension length detection device |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211022 |