CN107985337A - Both the mileage measurement wheel of wired quick repetition measurement measurement car - Google Patents
Both the mileage measurement wheel of wired quick repetition measurement measurement car Download PDFInfo
- Publication number
- CN107985337A CN107985337A CN201711418912.0A CN201711418912A CN107985337A CN 107985337 A CN107985337 A CN 107985337A CN 201711418912 A CN201711418912 A CN 201711418912A CN 107985337 A CN107985337 A CN 107985337A
- Authority
- CN
- China
- Prior art keywords
- wheel
- measurement
- unit
- bearing
- rolling
- 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
- 238000005259 measurement Methods 0.000 title claims abstract description 103
- 238000005096 rolling process Methods 0.000 claims abstract description 47
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention provides the mileage measurement wheel of a kind of both wired quick repetition measurement measurement car, including supporting rack and roll wheel unit, further include measurement wheel unit, roll belt and rotary encoder unit, rolling wheel unit has two groups and is arranged side by side in supporting rack, rolling wheel unit includes scroll wheel and rolling shaft, the both ends of rolling shaft are fixed on supporting rack, scroll wheel is rotatably installed on rolling shaft, measurement wheel unit includes wheel measuring wheel and measurement wheel bearing, wheel measuring wheel is between two scroll wheels, the both ends of wheel measuring wheel are respectively provided with rotation axis, rotation axis is installed on support frame as described above by measurement wheel bearing, belt sleeve is rolled to be arranged on outside wheel measuring wheel and two scroll wheels, rotary encoder unit includes rotary encoder, the output shaft of rotary encoder is fixed with rotation axis.Stable structure of the present invention, high certainty of measurement.
Description
Technical field
The present invention relates to the mileage field of measuring technique of Existing Railway Line track detecting, more particularly to it is a kind of both wired quick
Repetition measurement measures the mileage measurement wheel of car.
Background technology
In August, 2008, speed per hour are open to the traffic up to the Beijing-Tianjin inter-city Line for Passenger Transportation of 350km, indicate Chinese Railway
World's high-speed railway prosperity ranks are ranked among, realize equipment of railway transportation modernization, control and management scientification, detection and failure
The important breakthrough of the safeguard technologies such as intelligent diagnosis.Railway rail safety detection technique, which becomes, realizes that high-speed railway is transported
Defeated safe basis.
China is initially to solve the track morpheme disease of common railway, uses to the measuring study of track geometry status
Be relative measurement mode rail inspection instrument, though measurement efficiency is high, be not easy to solve measurement accuracy and integrity problem, it measures smart
Degree cannot meet the requirement of smoothness of high-speed railway track.Therefore the high-speed railway that Beijing-Tianjin, Wu Guang, Zheng Xi etc. are initially built, it is main
Import equipment is relied on, the measurement of what state of track is carried out using absolute measurement pattern.With China express railway construction
Extensive to implement, the country starts to produce track geometry status detection trolley and is applied in high speed railway construction.
One important indicator of small rail car measurement is exactly mileage number measurement.The mileage measurement wheel of existing track detecting trolley
Basic principle is as follows：Orbital curve is obtained by measurement, conversion obtains mileage number.Or pass through roller（Steel wheel or nylon
Wheel）Directly contacted with rail, roller connection rotary encoder, drives rotary encoder by the rotation of roller, obtain turning collar
Number, relative motion mileage number is obtained by conversion.
Although existing track detecting trolley can realize the measurement to track various parameters, there are still some to lack
Fall into.The mileage to be converted by orbital curve is inaccurate.By way of roller contact, whether steel wheel or nylon wheel
With can all be had skidded in being in rolling contact of rail, steel wheel is particularly evident, and mileage measurement error can be caused big.Long-term friction
It can make nylon wheel serious wear, the position that do not reach with rail, can also increase the error that mileage measures.
Mileage wheel is just needed replacing using after a period of time, and how mileage measurement wheel and the connection of orbit measurement trolley are accomplished
How convenient, quick replacement, ensure that it is also a same topic for needing to consider carefully to repeat assembly precision after repeated disassembled and assembled.
The content of the invention
The shortcomings that it is an object of the invention to overcome the prior art with deficiency, there is provided a kind of high certainty of measurement, stable structure,
Assembling is simple, replaces easily both mileage measurement wheels of wired quick repetition measurement measurement car.
What the present invention was realized in：
The mileage measurement wheel of the invention that a kind of both wired quick repetition measurement measurement car is provided, including supporting rack and rolling wheel unit, also
Including measurement wheel unit, roll belt and rotary encoder unit, the rolling wheel unit have two groups and be arranged side by side in
Rolling wheel unit in support frame as described above, described in each group includes scroll wheel and rolling shaft, and the both ends of the rolling shaft are fixed
In on support frame as described above, the scroll wheel is rotatably installed on the rolling shaft, and the measurement wheel unit includes rotation
Measurement wheel and measurement wheel bearing, the wheel measuring wheel is between two scroll wheels, the both ends of the wheel measuring wheel
Rotation axis is respectively provided with, the rotation axis is installed on support frame as described above by the measurement wheel bearing, and the rolling belt is arranged
Outside the wheel measuring wheel and two scroll wheels, the rotary encoder unit includes rotary encoder, described
The output shaft of rotary encoder is connected with the transmission of rotary axis.
Further, supporting rack compressing unit is further included, support frame as described above compressing unit has two groups and is respectively arranged in
The opposite both sides of support frame as described above.
Further, further include belt and compress wheel unit, the belt compresses wheel unit and is located on the wheel measuring wheel
Just and by the rolling belt it is pressed on the wheel measuring wheel.
Further, the belt compresses wheel unit and includes compressing wheel bearing, compresses wheel shaft and contact roller fixing piece, described
The both ends for compressing wheel shaft are fixed on support frame as described above by contact roller fixing piece, and the compression wheel bearing is installed on the compression
On wheel shaft, the rolling belt is pressed on the wheel measuring wheel by the compression wheel bearing.
Further, the rolling wheel unit further includes scroll wheel bearing, and the scroll wheel passes through the scroll wheel bearing
It is installed on the rolling shaft.
Further, the outer surface of the scroll wheel and the wheel measuring wheel is all provided with teeth.
Further, the wheel measuring wheel is located at two scroll wheel upper middle sides.
Further, the rotary encoder unit further includes encoder fixed block, and the rotary encoder is fixed on institute
State on encoder fixed block, the encoder fixed block is fixed on support frame as described above.
Further, support frame as described above compressing unit includes fixed block, guiding axis, linear compression spring and scotch, described
Fixed block is fixed on the side wall of support frame as described above, and the guiding axis is fixed on the fixed block, and the scotch socket is solid
Be scheduled on the guiding axis, the linear compression spring is set on the guiding axis and both ends abut respectively the fixed block with it is described
Scotch.
Further, the fixed block includes bearing fixed block and guide bearing, the guiding axis and the guide bearing
Fixed, the guide bearing is installed on the bearing fixed block.
Compared with prior art, the invention has the advantages that：
1st, stable structure：The mileage measurement wheel of the present invention is the structure of almost symmetry, by setting two scroll wheels to increase rolling
The contact area of dynamic belt and rail, rolling belt is arranged outside scroll wheel, is directly contacted with rail by rolling belt, is increased
Big frictional force, reduces and skids with rail.
2nd, high certainty of measurement：Scroll wheel drives measurement wheel by rolling belt, and measurement wheel is coaxial with rotary encoder, rotation
Encoder can directly obtain mileage by counting and converting.
Brief description of the drawings
Fig. 1 is the stereogram for the mileage measurement wheel that provided in an embodiment of the present invention both wired quick repetition measurement measures car；
Fig. 2 is the front view for the mileage measurement wheel that provided in an embodiment of the present invention both wired quick repetition measurement measures car；
Fig. 3 is the section view on the horizontal plane for the mileage measurement wheel that provided in an embodiment of the present invention both wired quick repetition measurement measures car
Figure；
Fig. 4 is the section view on the vertical plane for the mileage measurement wheel that provided in an embodiment of the present invention both wired quick repetition measurement measures car
Figure.
Description of reference numerals：The main supporting item of 100- supporting racks, 101-, 102- pairs supporting item, 200- roll wheel unit, 201-
Scroll wheel bearing, 202- rolling shafts, 203- scroll wheels, 300- measurements wheel unit, 301- measurement wheels bearing, 302- wheel measurings
Wheel, 400- roll belt, 500- belts compress wheel unit, 501- contact rollers fixing piece, 502- compress wheel bearing, 503- contact rollers
Axis, 600- rotary encoders unit, 601- encoders fixed block, 602- shaft couplings, 603- rotary encoders, 700- supporting rack pressures
Tight unit, 701- bearings fixed block, 702- guide bearings, 703- guiding axis, the linear compression springs of 704-, 705- scotch.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, the embodiment of the present invention provides the mileage measurement wheel of a kind of both wired quick repetition measurement measurement car, including branch
Support 100, roll wheel unit 200, measurement wheel unit 300, roll belt 400, rotary encoder unit 600 and supporting rack pressure
Tight unit 700.
As shown in Figure 1, support frame as described above 100 includes main supporting item 101 and secondary supporting item 102, the pair supporting item 102 is in
Inverted U, centre have accommodation space, and the main supporting item 101 is plate-like, and the main supporting item 101 is with two and solid respectively
Due in the opening at secondary 102 both ends of supporting item.As shown in Figures 2 to 4, the rolling wheel unit 200 has two groups and simultaneously
Row is arranged in support frame as described above 100, has interval, scroll wheel list described in each group between rolling wheel unit 200 described in two groups
Member 200 includes scroll wheel 203 and rolling shaft 202, and the both ends of the rolling shaft 202 are individually fixed in the secondary supporting item
In 102 two side walls, the scroll wheel 203 is rotatably installed on the rolling shaft 202, it is preferable that the rolling
Wheel unit 200 further includes scroll wheel bearing 201, and the scroll wheel 203 is installed on the rolling by the scroll wheel bearing 201
On wheel shaft 202, the outside of the scroll wheel bearing 201 and the inner side of the scroll wheel 203 are fixed, the scroll wheel bearing 201
Inner side fixed with the rolling shaft 202 so that the scroll wheel 203 can not only be rotated around the rolling shaft 202, and
And convenient dismounting, easy to subsequently replace the scroll wheel 203.By set two scroll wheels 203 increase roll belt 400 with
The contact area of rail.
As shown in Figure 2 and Figure 4, the measurement wheel unit 300 includes wheel measuring wheel 302 and measurement wheel bearing 301, described
For wheel measuring wheel 302 between two scroll wheels 203, the both ends of the wheel measuring wheel 302 are respectively provided with rotation axis, and two
A rotation axis is installed in the two side walls of the secondary supporting item 102 by the measurement wheel bearing 301 respectively, so that institute
Stating wheel measuring wheel 302 can rotate relative to support frame as described above 100.The rolling belt 400 is sheathed on the wheel measuring wheel
302 and two scroll wheels 203 outside, be arranged in the outside of scroll wheel 203 and roll belt 400, by roll belt 400 with
Rail directly contacts, increasing friction force, reduces and skids with rail, passes through the rolling belt 400 when the scroll wheel 203 rotates
Transmission drives the wheel measuring wheel 302 to rotate.Preferably, the wheel measuring wheel 302 is in two scroll wheels 203
Between side on the upper side, three's line of centres is in isosceles triangle, stable structure.Further, the outer surface of the scroll wheel 203 is equipped with
Tooth, the outer surface of the wheel measuring wheel 302 also are provided with tooth, can increase and roll the frictional force between belt 400, prevent from rolling
Dynamic belt 400 skids.
As shown in figures 1 and 3, the rotary encoder unit 600 includes rotary encoder 603, the rotary encoder
603 output shaft is fixed by shaft coupling 602 and the rotation axis, so that the output shaft of the rotary encoder 603 can be with
The wheel measuring wheel 302 to rotate, so as to record the turnning circle of wheel measuring wheel 302.The scroll wheel 203 passes through rolling
Belt 400 drives wheel measuring wheel 302 to rotate, and wheel measuring wheel 302 and rotary encoder 603 are coaxial, and rotary encoder 603 is logical
Mileage can be directly obtained by crossing counting and conversion.Further, the rotary encoder unit 600 further includes encoder and consolidates
Determine block 601, the rotary encoder 603 is fixed on the encoder fixed block 601, and the encoder fixed block 601 is fixed
In the outside of the secondary supporting item 102, so that the rotary encoder 603 is fixed on support frame as described above 100.
As shown in Figure 1, Figure 2 and Figure 4, support frame as described above compressing unit 700 has two groups and is respectively arranged in described in two
The outside of main supporting item 101, two groups of support frame as described above compressing units 700 are symmetrically installed, and ensure force balance.Refinement ground, it is each
Support frame as described above compressing unit 700 includes fixed block, guiding axis 703, linear compression spring 704 and scotch 705, the fixed block
Fixed with the corresponding main backstop 100, the guiding axis 703 is fixed on the fixed block, and the scotch 705 is socketed
It is fixed on the guiding axis 703, the scotch 705 is mutually fixed with measurement car during use, and the linear compression spring 704 is set in
On the guiding axis 703 and both ends abut the fixed block and the scotch 705 respectively.What the linear compression spring 704 was installed
Original state is compression, and it is whole so as to compress downwards under the restoring force effect of spring to compress the fixed block downwards during use
A mileage measurement wheel, makes scroll wheel 203 be close on rail, increasing friction force, reduces and skids with rail.Surveyed in order to facilitate mileage
Dismounting between amount wheel and measurement car car body, the fixed block include bearing fixed block 701 and guide bearing 702, the guiding
Axis 703 is fixed with the guide bearing 702, and the guide bearing 702 is installed on the bearing fixed block 701, so as to
By the way that the guide bearing 702 is disassembled from the bearing fixed block 701 so that mileage measurement wheel and measurement car car body
Between separate.
As shown in Figure 1 and Figure 4, it is further preferred that further including belt compresses wheel unit 500, the belt contact roller list
Member 500 includes compressing wheel bearing 502, compresses wheel shaft 503 and contact roller fixing piece 501, and the both ends for compressing wheel shaft 503 pass through
Contact roller fixing piece 501 is fixed on support frame as described above 100, and the compression wheel bearing 502 has two and is mounted on described
Compress on wheel shaft 503, the surface for compressing wheel bearing 502 and being located at the wheel measuring wheel 302, the compression wheel bearing
502 are pressed in the rolling belt 400 on the wheel measuring wheel 302.Pass through the compression wheel bearing 502 and the rotation
Measurement wheel 302 compresses rolling belt 400 therebetween, and reduction is rolled between the between cog between belt 400 and wheel measuring wheel 302
Gap, error caused by between cog step-out when preventing from being driven.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
1. the mileage measurement wheel of a kind of both wired quick repetition measurement measurement car, including supporting rack and rolling wheel unit, it is characterised in that：
Further include measurement wheel unit, roll belt and rotary encoder unit, the rolling wheel unit has two groups and is arranged side by side
Include scroll wheel and rolling shaft in rolling wheel unit in support frame as described above, described in each group, the both ends of the rolling shaft are consolidated
Due on support frame as described above, the scroll wheel is rotatably installed on the rolling shaft, and the measurement wheel unit includes rotation
Turning measurement wheel and measurement wheel bearing, the wheel measuring wheel is between two scroll wheels, and the two of the wheel measuring wheel
End is respectively provided with rotation axis, and the rotation axis is installed on support frame as described above by the measurement wheel bearing, the rolling belt sleeve
Outside the wheel measuring wheel and two scroll wheels, the rotary encoder unit includes rotary encoder, institute
The output shaft for stating rotary encoder is connected with the transmission of rotary axis.
2. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：Further include support
Frame compressing unit, support frame as described above compressing unit have two groups and are respectively arranged in the opposite both sides of support frame as described above.
3. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：Further include belt
Wheel unit is compressed, the belt compresses wheel unit and is located above the wheel measuring wheel and is pressed in the rolling belt described
On wheel measuring wheel.
4. the mileage measurement wheel of as claimed in claim 3 both wired quick repetition measurement measurement car, it is characterised in that：The belt pressure
Bearing up pulley unit includes compressing wheel bearing, compresses wheel shaft and contact roller fixing piece, and the both ends for compressing wheel shaft are consolidated by contact roller
Determine part to be fixed on support frame as described above, the compression wheel bearing is installed on the compression wheel shaft, and the wheel bearing that compresses is by institute
Rolling belt is stated to be pressed on the wheel measuring wheel.
5. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：The scroll wheel
Unit further includes scroll wheel bearing, and the scroll wheel is installed on the rolling shaft by the scroll wheel bearing.
6. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：The scroll wheel
It is all provided with the outer surface of the wheel measuring wheel with teeth.
7. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：The rotation is surveyed
Amount wheel is located at two scroll wheel upper middle sides.
8. the mileage measurement wheel of as claimed in claim 7 both wired quick repetition measurement measurement car, it is characterised in that：The rotation is compiled
Code device unit further includes encoder fixed block, and the rotary encoder is fixed on the encoder fixed block, the encoder
Fixed block is fixed on support frame as described above.
9. the mileage measurement wheel of as claimed in claim 1 both wired quick repetition measurement measurement car, it is characterised in that：Support frame as described above
Compressing unit includes fixed block, guiding axis, linear compression spring and scotch, and the fixed block is fixed on the side wall of support frame as described above
On, the guiding axis is fixed on the fixed block, and the scotch is fixed by socket on the guiding axis, the linear compression spring
It is set on the guiding axis and both ends abuts the fixed block and the scotch respectively.
10. the mileage measurement wheel of as claimed in claim 9 both wired quick repetition measurement measurement car, it is characterised in that：The fixation
Block includes bearing fixed block and guide bearing, and the guiding axis is fixed with the guide bearing, and the guide bearing is installed on institute
State on bearing fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418912.0A CN107985337A (en) | 2017-12-25 | 2017-12-25 | Both the mileage measurement wheel of wired quick repetition measurement measurement car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418912.0A CN107985337A (en) | 2017-12-25 | 2017-12-25 | Both the mileage measurement wheel of wired quick repetition measurement measurement car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107985337A true CN107985337A (en) | 2018-05-04 |
Family
ID=62042367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711418912.0A Pending CN107985337A (en) | 2017-12-25 | 2017-12-25 | Both the mileage measurement wheel of wired quick repetition measurement measurement car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107985337A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319914A (en) * | 2008-07-17 | 2008-12-10 | 南京通晟自控系统有限公司 | Roller type rail-moving machine-walking position detection apparatus |
| CN201191204Y (en) * | 2008-04-14 | 2009-02-04 | 河南省许昌水文水资源勘测局 | Rope length meter for hydrographic cableway |
| CN104553602A (en) * | 2014-12-31 | 2015-04-29 | 铁道第三勘察设计院集团有限公司 | Antiskid wheels for track detecting trolley |
| CN204479052U (en) * | 2014-10-31 | 2015-07-15 | 嘉兴市浙工数控焊机有限公司 | For the line length pick-up unit of welding gear of looping |
| CN106629196A (en) * | 2016-10-17 | 2017-05-10 | 深圳市润天智数字设备股份有限公司 | Digital printing system and guide belt stepping detection device thereof |
| CN207758802U (en) * | 2017-12-25 | 2018-08-24 | 中铁第四勘察设计院集团有限公司 | Both wired quick repetition measurement measured the mileage measurement wheel of vehicle |
-
2017
- 2017-12-25 CN CN201711418912.0A patent/CN107985337A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191204Y (en) * | 2008-04-14 | 2009-02-04 | 河南省许昌水文水资源勘测局 | Rope length meter for hydrographic cableway |
| CN101319914A (en) * | 2008-07-17 | 2008-12-10 | 南京通晟自控系统有限公司 | Roller type rail-moving machine-walking position detection apparatus |
| CN204479052U (en) * | 2014-10-31 | 2015-07-15 | 嘉兴市浙工数控焊机有限公司 | For the line length pick-up unit of welding gear of looping |
| CN104553602A (en) * | 2014-12-31 | 2015-04-29 | 铁道第三勘察设计院集团有限公司 | Antiskid wheels for track detecting trolley |
| CN106629196A (en) * | 2016-10-17 | 2017-05-10 | 深圳市润天智数字设备股份有限公司 | Digital printing system and guide belt stepping detection device thereof |
| CN207758802U (en) * | 2017-12-25 | 2018-08-24 | 中铁第四勘察设计院集团有限公司 | Both wired quick repetition measurement measured the mileage measurement wheel of vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108680371B (en) | Variable-gauge bogie wheel set variable-gauge performance and reliability test bed | |
| CN108956067B (en) | A rolling vibration test bench for simulating the wheel-rail relationship of rail transit | |
| CN102998116B (en) | Device and method for testing reliability of rolling linear guide track pair | |
| CN108842711A (en) | A kind of ultrasonic track defectoscope | |
| CN107748113A (en) | A kind of rail vehicle and its rail vehicle wheel wear detection means | |
| RU166920U1 (en) | LOCOMOTIVE TRACTION DRIVE | |
| CN113619642A (en) | Railway detection device | |
| CN202066469U (en) | Special measuring tool for inner wheel coaxiality and equal scale division of constant speed driving shaft gate | |
| CN205580899U (en) | Railway bullet strip fatigue testing machine who has pretightning force | |
| CN107985337A (en) | Both the mileage measurement wheel of wired quick repetition measurement measurement car | |
| CN107867301A (en) | Track repetition measurement measurement car with laser plummet | |
| Liu et al. | Non-uniform roller-race contact performance of bearings along width in the rotor-bearing system under dynamic loads | |
| CN202329599U (en) | Track gauge measuring device of railway track detecting instrument | |
| CN207760672U (en) | Both wired quick repetition measurement measured vehicle | |
| CN207758802U (en) | Both wired quick repetition measurement measured the mileage measurement wheel of vehicle | |
| CN106123835B (en) | A kind of precision planetary reducer backhaul gap detection device | |
| CN202806793U (en) | A vehicle bottom image monitoring mechanism for train inspection operations | |
| CN217504687U (en) | Outer hub detection device | |
| CN205580734U (en) | Non - centering formula universal joint test bench of three fork arms | |
| CN209485221U (en) | A kind of crankshaft external diameter detection device | |
| CN111306198B (en) | Oil leakage prevention bearing device | |
| CN202510650U (en) | Device for driving rocker to move uniformly and linearly | |
| CN101806673A (en) | Sampling needle driving mechanism for biochemical analyzer | |
| CN102809335B (en) | Textile drafting upper roller jumping measurement instrument | |
| CN206095195U (en) | Accurate planetary reducer return stroke clearance 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: 20180504 |