CN206583414U - Wheel is to run-out check and end-play measuring machine - Google Patents
Wheel is to run-out check and end-play measuring machine Download PDFInfo
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- CN206583414U CN206583414U CN201720151013.8U CN201720151013U CN206583414U CN 206583414 U CN206583414 U CN 206583414U CN 201720151013 U CN201720151013 U CN 201720151013U CN 206583414 U CN206583414 U CN 206583414U
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- guide rail
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- underframe
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Abstract
The utility model is related to measuring apparatus, more specifically, it is related to wheel to run-out check and end-play measuring machine, include underframe, described underframe is provided with the first elevating mechanism, the first described elevating mechanism is provided with the rotating mechanism of rotating wheel pair, described underframe two ends are provided with support base, described support base is connected with detent mechanism, described detent mechanism be provided be used for promote wheel to pushing mechanism, it is used for measuring mechanism of the measurement wheel to end-play provided with what is be connected with support base between described pushing mechanism and detent mechanism, the observation to wheel tread and the measurement of two bearings end-play can be automatically and accurately completed during one-shot measurement, reduce working strength, improve operating efficiency, make measurement data more precise and stable.
Description
Technical field
The utility model is related to measuring apparatus, more particularly, to wheel to run-out check and end-play measuring machine.
Background technology
At present, numerous rolling stock sections of domestic responsible Railway Freight Car Repair mainly have for the detection of wheel set bearing end-play
Two methods：（1）Method measures work-saving device using axial free-gap of freight carrier rolling bearing, and dial gauge reads clearance data, but its
Internals and fastener are easily damaged, inefficiency, human error the problems such as still fail to solve, at the data in later stage
Original mode is still taken in reason and transmission.This mode has the disadvantage using artificial operation, causes inefficiency, workman's work
Intensity is big, and human factor causes measurement error, is easily damaged internals and fastener；（2）Method uses railway freight car wheel
To bearing axial play measuring machine, such as patent CN201310730116, the equipment is hydraulic pressure force application structure, its mechanism it is complicated and
Without run-out check function, cost high maintenance is difficult.
The content of the invention
The utility model is to overcome at least one defect described in above-mentioned prior art there is provided wheel to run-out check and axial direction
Clearance measuring machine, can automatically and accurately complete the observation to wheel tread and two bearings end-play during one-shot measurement
Measurement, reduce working strength, improve operating efficiency, make measurement data more precise and stable.
In order to solve the above technical problems, the technical solution adopted in the utility model is：Wheel is to run-out check and end-play
Measuring machine, includes underframe, wherein：Described underframe is provided with the first elevating mechanism, and the first described elevating mechanism is provided with
The rotating mechanism of rotating wheel pair, described underframe two ends are provided with support base, and described support base is connected with detent mechanism, described
Detent mechanism be provided be used for promote wheel to pushing mechanism, be provided between described pushing mechanism and detent mechanism and support base
What is connected is used for measuring mechanism of the measurement wheel to end-play.
The first elevating mechanism is provided with underframe, when carrying out detection process, when wheel is to being placed on underframe, first liter
Descending mechanism is used for support wheel to lifting.When wheel in the presence of the first elevating mechanism to rising to certain altitude, wheel pair
Rotated in the presence of rotating mechanism, thus to take turns to the significant points such as tread, wheel rim visual examination.In underframe two
End is provided with support base, and support base is connected with detent mechanism, and detent mechanism, which is provided with, to be used to detect promotion machine of the wheel to end-play
Structure, while being used for survey of the measurement wheel to end-play size provided with what is be connected with support base between pushing mechanism and detent mechanism
Measuring mechanism.Pushing mechanism promote wheel to while measuring mechanism and pushing mechanism between be collocated with each other end-play surveyed
Amount.
In one embodiment, detent mechanism is provided with the second stand being connected with pushing mechanism and measuring mechanism, described
The second stand and support base between be provided with guide rail, described the second stand and the second elevating mechanism being arranged on underframe connect
Connect.
It is attached between the second stand and support base that detent mechanism is provided with by guide rail, the second stand is in the second lifting
Can be along guide rail in the enterprising line slip of support base, so as to drive the promotion machine being connected with the second stand in the presence of mechanism
Structure and measuring mechanism carry out change in location, so as to meet pushing mechanism and measuring machine in wheel is to end-play measurement process
Requirement of the structure to different height position.
In one embodiment, described pushing mechanism is provided with the second pushing meanss and the 3rd guide rail, described second
Pushing meanss are connected with the pushing plate being arranged on the 3rd guide rail, described pushing plate pushing away provided with promotion wheel set bearing outer ring
Power bar, described pushing mechanism is provided with the locating rod with the second elevating mechanism cooperating, and described pushing mechanism is provided with determining
The position-sensing switch of position bar connection.
The second pushing meanss and the 3rd guide rail are provided with pushing mechanism, is provided with the 3rd guide rail and promotes dress with second
Put connection can the 3rd enterprising line slip of guide rail pushing plate.Distance rod is provided with pushing plate, distance rod can pushed away
Displacement is carried out in the presence of dynamic plate, can apply thrust to bearing outer ring during distance rod carries out displacement, make wheel to axle
Bearing outer-ring is moved.In order to be accurately controlled to pushing mechanism in lifting process, provided with positioning on pushing mechanism
Bar, locating rod is connected with position-sensing switch.After pushing mechanism drops to locating rod contact bearing outer ring, position-sensing switch control second
Elevating mechanism stops declining, the characteristics of with registration.
Preferably, described pushing mechanism is provided with the 3rd pushing meanss and the 4th guide rail, described the 3rd pushing meanss with
The tension board connection on the 4th guide rail is arranged on, described tension board is connected with the stayed mast for promoting wheel set bearing outer ring.
3rd pushing meanss are connected with the tension board being arranged on the 4th guide rail, effect of the tension board in the 3rd pushing meanss
Under can be in the 4th enterprising line slip of guide rail.Stayed mast is provided with tension board, when stayed mast follows tension board in the 3rd promotion
When being moved in the presence of device, stayed mast can apply pulling force to bearing outer ring, move bearing outer ring.
Preferably, measuring mechanism is provided with the connecting plate being connected with pushing mechanism and the first promotion dress on connecting plate
Put, described connecting plate is provided with the first guide rail, the first described pushing meanss are connected with the propulsion dress on the first guide rail
Put, described propulsion plant is provided with the feeding plate being connected with the first pushing meanss on the first guide rail, described feeding plate
The second guide rail is provided with, the second described guide rail is provided with the movable plate with thimble, and described thimble is connected with distance rod；Institute
The connecting plate stated is provided with the grating scale being connected with movable plate.
Measuring mechanism is attached by connecting plate with pushing mechanism, and the first pushing meanss, first are provided with connecting plate
Pushing meanss can promote the propulsion plant being arranged on the first guide rail to move back and forth.Propulsion plant is arranged on first
Feeding plate on guide rail, feeding plate can move back and forth in the presence of the first pushing meanss on the first guide rail.Entering
The second guide rail is provided with to plate, the second guide rail is provided with the movable plate with thimble, and thimble is connected with distance rod, thimble can be
Contact bearing outer ring in the presence of distance rod and movable plate.In order to accurate measurement end-play, light is provided with connecting plate
Grid chi, grating scale can be accurately measured to the amount of movement of movable plate, and then obtain the end-play of accurate bearing.
In one embodiment, the first elevating mechanism is provided with cylinder, and described cylinder is packed on underframe by backing plate,
Described backing plate is provided with locating dowel, and described cylinder is provided with the keeper chimeric with locating dowel；Described rotating mechanism is set
Put on backing plate.
Cylinder is packed on underframe by backing plate, in order to ensure that cylinder is not in rotate existing in lifting process
As locating dowel being provided with backing plate, while being provided with the keeper chimeric with locating dowel on cylinder.Pass through locating dowel and keeper
Between it is chimeric limit the phenomenon that rotating mechanism rotation occurs during up-down rotation gear in cylinder, intensifier is overall
Stability.
Preferably, rotating mechanism is provided with the stand on cylinder, and described stand is provided with what is driven by actuator
It is additionally provided with driving wheel, described stand and coordinates the driven pulley rotated with driving wheel.
Rotating mechanism is provided with stand, by setting driving wheel and the driven pulley coordinated with driving wheel on stand,
The actuator driving driving wheel being provided with is when being rotated, driven pulley and take turns to axle also rotate.Such side of being designed to
Just driving wheel to rotating, so as to easily to take turns to the significant points such as tread, wheel rim visual examination.
In one embodiment, underframe is provided with into wheel guide rail, and described enters to take turns guide rail provided with gear wheel mechanism, described
Gear wheel mechanism be provided with and enter to take turns the 4th pushing meanss that guide rail be connected, described the 4th pushing meanss by thrust block pad with movably
It is connected into the baffle plate connection on wheel guide rail.
Provided with being easy to wheel to enter to take turns guide rail to rolling on underframe, in order to the security of intensifier, led entering wheel
Rail is provided with gear wheel mechanism, and gear wheel mechanism can be prevented in detection process in wheel is to rotation process to taking turns to limiting
There is multipair wheel to entering to take turns the phenomenon of guide rail, while can prevent wheel from being caused to being skidded off in detection process into wheel guide rail
Security incident.
Preferably, underframe is provided with push wheel mechanism, and described push wheel mechanism is provided with the 5th pushing meanss, described push wheel machine
Structure is provided with the rotary shaft being connected with underframe, and pushing meanss are connected by the arm of force being fixedly mounted with the rotating shaft with rotary shaft, described
Rotary shaft two ends provided with promote wheel to push rod.
Push wheel mechanism is provided with underframe, rotary shaft and pushing meanss that push wheel mechanism is provided with pass through rotary shaft and promotion
The effect of device drives push rod to be rotated, so that driving wheel is to moving, can be convenient by wheel pair upon completion of the assays
Driving is so as to depart from into wheel guide rail.
Preferably, support base is provided with the control flow being connected with measuring mechanism.
Control flow is provided with support base, control flow is attached with measuring mechanism, and control flow can receive measuring mechanism
The related data of end-play is measured, so as to accurately draw the measurement data of end-play, and number can will be measured
According to HMIS systems are above stored to, workman's working strength is reduced, operating efficiency is improved.
The utility model is compared to prior art, has the advantages that detection, measurement process entire mechanization, it is to avoid people
The measurement error that manual operation is caused in work measurement.By provided with mechanical part to taking turns to checking, labor can be reduced
Fatigue resistance.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram in embodiment 1.
Fig. 2 is the utility model Dang Lun mechanisms structural representation in embodiment 1.
Fig. 3 is the utility model push wheel mechanism structure schematic diagram in embodiment 1.
Fig. 4 is the utility model the first elevating mechanism structural representation in embodiment 1.
Fig. 5 is the utility model detent mechanism structural representation in embodiment 1.
Fig. 6 is the utility model pushing mechanism structural representation in embodiment 1.
Fig. 7 is the utility model pushing mechanism structural representation in embodiment 1.
Fig. 8 is the utility model measuring mechanism concrete structure schematic diagram in embodiment 1.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as to limitation of the present utility model；In order to more preferably illustrate this implementation
Example, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；For those skilled in the art
For, some known features and its explanation may be omitted and will be understood by accompanying drawing.Position relationship is only used for described in accompanying drawing
Exemplary illustration, it is impossible to be interpreted as to limitation of the present utility model.
Embodiment 1：
As shown in figure 1, the utility model provides wheel to run-out check and end-play measuring machine, it is provided with the two ends of underframe 1
Support base 6, support base 6 is provided with two groups in the either end of underframe 1.The first elevating mechanism 5, first liter are provided with the middle part of underframe 1
Descending mechanism 5 is packed on underframe 1 by backing plate 54, and the cylinder 51 that the first elevating mechanism 5 is provided with is packed on backing plate 54, in backing plate
54 are provided with the second stand 55.In order to ensure that cylinder 51 is not in during being lifted to the second stand 55
The wild effect that two stands 55 are rotated, provided with two locating dowels 52 being connected with push rod on the push rod of cylinder 51.Locating dowel 52
It is chimeric with the keeper 53 being arranged on backing plate 54, it can prevent push rod from rotating in the push rod lifting process of cylinder 51.
As shown in figure 4, provided with driving wheel 56 and from top wheel 57 on the second stand 55, driving wheel 56 passes through clutch shaft bearing 58
It is fixed on rolling bearing units 510 on the second stand 55, second is fixed on from top wheel 57 by second bearing 59 and rolling bearing units 510
On stand 55.Actuator 512 is arranged in the second stand 55, and actuator 512 drives driving wheel 56 to rotate by chain 511.
As shown in figure 1, support base 6 is provided with pushing mechanism 9 and measuring mechanism 10, pushing mechanism 9 and measuring mechanism 10 are logical
The first stand 73 being provided with is crossed to be slidably connected using guide rail 74 with support base 6.The liter of first stand 73 and the second elevating mechanism 72
Drop bar is attached by nut 71.Pushing mechanism 9 and measuring mechanism 10 are installed on the first stand 73.
Pushing mechanism 9 by provided with the first stand 73 be connected with the second elevating mechanism 72 being arranged on underframe 1,
Pushing mechanism 9 can be moved up and down in the presence of two elevating mechanisms 72.
As shown in Figure 6,7, pushing mechanism 9 is provided with the second pushing meanss 91, and locating rod 99 is provided with pushing mechanism 9, when
When pushing mechanism 9 is lifted in the presence of the second elevating mechanism 72, locating rod 99 touches bearing outer ring and triggers positioning
Switch 910 is acted, and measurement and positioning mechanism 7 stops declining.Now the second pushing meanss 91 promote pushing plate 93 in the 3rd guide rail 92
Enterprising line slip.Distance rod 94 is provided with pushing plate 93, when carrying out end-play test, the second pushing meanss 91 are promoted
Plate 93 enters line slip in the 3rd guide rail 92, and pushing plate 93 promotes distance rod 94 to promote wheel set bearing outer ring.
Second pushing meanss 91 and the 3rd pushing meanss 95 use pneumatic type pushing meanss, with simple in construction excellent
Point, while again easily controllable.
As shown in figure 8, measuring mechanism 10 is provided with connecting plate 101, the first pushing meanss 102 are provided with connecting plate 101, when
When pushing mechanism 9 is promoted to wheel set bearing outer ring, the first pushing meanss 102, which can be promoted, to be arranged on the first guide rail 104
Feeding plate 103 acted.Feed plate 103 by provided with the second guide rail 105 be provided with movable plate 106, set on movable plate 106
There is thimble 107, movable plate 106 is connected by spring 108 with feeding plate 103, and movable plate 106 can in the presence of spring 108
Slide and reset in feeding plate 103.
Measuring mechanism 10 is connected with PLC, and artificial disturbance is excluded by PLC, improves measurement accuracy.
As shown in figure 1, being provided with underframe 1 into wheel guide rail 2, gear wheel mechanism 3, gear wheel mechanism 3 are provided with entering to take turns guide rail 2
It is arranged on into the end of wheel guide rail 2 and middle part.The push wheel mechanism 4 with gear wheel mechanism 3 cooperating is provided with underframe 1.
As shown in Fig. 2 gear wheel mechanism 3 is provided with the 4th pushing meanss 31 and the thrust block pad being connected with the 4th pushing meanss 31
32.Thrust block pad 32 is connected with baffle plate 33, and baffle plate 33 is movably connected with entering to take turns guide rail 2, and baffle plate 33 can be in the 4th pushing meanss 31
Swung with the presence of thrust block pad 32, arrival prevents wheel to rolling out the purpose into wheel guide rail 2.
As shown in figure 3, push wheel mechanism 4 is provided with the 5th pushing meanss 44, the 5th pushing meanss 44 pass through power with rotary shaft 45
Arm 43 is connected, and rotary shaft 45 is connected on underframe 1 by rolling bearing units 42.In the presence of the 5th pushing meanss 44, the arm of force 43
Rotary shaft 45 is driven to be rotated, rotary shaft 45 drives push rod 41 to be swung, so as to reach promotion wheel on entering to take turns guide rail 2
The purpose rolled.
As shown in figure 1, being provided with support base to penetrating optoelectronic switch 61, when wheel is to push-in station, block to penetrating photoelectricity
Switch 61, the pushing meanss 44 of triggering push wheel mechanism 4 the 5th are acted, and put push rod 41, in the baffle plate 33 and push rod of gear wheel mechanism 3
Make wheel under 41 collective effect to stopping on appropriate station.
When wheel in place after, as shown in figure 5, the first elevating mechanism 5 rise will wheel to jack-up, in place after actuator 512 drive
Dynamic driving wheel 56 is rotated, and when the main driven wheel of runner 56 is to rotating, driven pulley 57 coordinates main runner 56 to be rotated.Now may be used
Wheel tread is checked.The first elevating mechanism 5 declines after inspection is finished, into bearing clearance process of measurement.
Now detent mechanism 7 declines under the drive of the second elevating mechanism 72, when the locating rod 99 of pushing mechanism 9 is touched
Bearing outer ring is simultaneously triggered to after the action of position-sensing switch 910, detent mechanism 7 stops declining.Now the second pushing meanss 91 are acted,
Drive distance rod 94 to promote wheel set bearing outer ring to move inward, while the first pushing meanss 102 of measuring mechanism 10 are acted, drive
Thimble 107 touches bearing outer ring end face, and the data after being moved in bearing outer ring are read by the system of grating scale 109.
The second pushing meanss 91 are acted after reading is finished, and drive distance rod 94 to retract.Then the 3rd pushing meanss 95 are acted,
3rd pushing meanss 95 are provided with two, drive stayed mast 98 to pull wheel set bearing outer ring to be displaced outwardly, pass through the system of grating scale 109
Read the data after being moved outside bearing outer ring.It is bearing clearance numerical value that outer shifting reading, which subtracts interior shifting reading,.Clearance numerical value is shown in control
On system screen 8, and HMIS systems can be uploaded to.The 3rd pushing meanss 95 are acted after reading is finished, and drive stayed mast 98 to retract, simultaneously
First pushing meanss 102 of measuring mechanism 10 are acted, and drive thimble 107 to retract, clearance is measured.Detent mechanism 7 rises back
Position.Instructed by pressing the push wheel being provided with control flow 8, the action of pushing meanss 44 of push wheel mechanism 4 drives rotary shaft 45 to take turns
To release station, complete a pair of wheel to measurement.In measurement process, gear wheel mechanism 3, which rises, prevents other wheels to entering.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (10)
1. wheel includes underframe to run-out check and end-play measuring machine（1）, it is characterised in that：Described underframe（1）On set
There is the first elevating mechanism（5）, described the first elevating mechanism（5）It is provided with the rotating mechanism of rotating wheel pair, described underframe（1）
Two ends are provided with support base（6）, described support base（6）It is connected with detent mechanism（7）, described detent mechanism（7）Provided with use
In the pushing mechanism for promoting wheel set bearing clearance（9）, described pushing mechanism（9）It is provided between detent mechanism and support base
（6）What is connected is used for measuring mechanism of the measurement wheel to end-play（10）.
2. wheel according to claim 1 is to run-out check and end-play measuring machine, it is characterised in that：Described localization machine
Structure（7）It is provided with and pushing mechanism（9）And measuring mechanism（10）Second stand of connection（73）, described the second stand（73）With branch
Support seat（6）Between be provided with guide rail（74）, described the second stand（73）With being arranged on underframe（1）On the second elevating mechanism（72）
Connection.
3. wheel according to claim 1 is to run-out check and end-play measuring machine, it is characterised in that：Described promotion machine
Structure（9）Provided with the second pushing meanss（91）With the 3rd guide rail（92）, described the second pushing meanss（91）Led with being arranged on the 3rd
Rail（92）On pushing plate（93）Connection, described pushing plate（93）Provided with the distance rod for promoting wheel set bearing outer ring（94）,
Described pushing mechanism（9）Provided with the second elevating mechanism（72）The locating rod of cooperating（99）, described pushing mechanism（9）
It is provided with and locating rod（99）The position-sensing switch of connection（910）.
4. wheel according to claim 2 is to run-out check and end-play measuring machine, it is characterised in that：Described promotion machine
Structure（9）Provided with the 3rd pushing meanss（95）With the 4th guide rail（96）, described the 3rd pushing meanss（95）Led with being arranged on the 4th
Rail（96）On tension board（97）Connection, described tension board（97）It is connected with the stayed mast for promoting wheel set bearing outer ring（98）.
5. wheel according to claim 3 is to run-out check and end-play measuring machine, it is characterised in that：Described measuring machine
Structure（10）It is provided with and pushing mechanism（9）The connecting plate of connection（101）And located at connecting plate（101）On the first pushing meanss
（102）, described connecting plate（101）It is provided with the first guide rail（104）, described the first pushing meanss（102）It is connected with and is located at
First guide rail（104）On propulsion plant, described propulsion plant, which is provided with, is located at the first guide rail（104）On with first promote fill
Put（102）The feeding plate of connection（103）, described feeding plate（103）It is provided with the second guide rail（105）, described the second guide rail
（105）It is provided with and carries thimble（107）Movable plate（106）；Described connecting plate（101）It is provided with and movable plate（106）Connection
Grating scale（109）.
6. wheel according to claim 1 is to run-out check and end-play measuring machine, it is characterised in that：Described first liter
Descending mechanism（5）Provided with cylinder（51）, described cylinder（51）Pass through backing plate（54）It is packed in underframe（1）On, described backing plate
（54）It is provided with locating dowel（52）, described cylinder（51）It is provided with and locating dowel（52）Chimeric keeper（53）；Described
Rotating mechanism is arranged on backing plate（54）On.
7. wheel according to claim 5 is to run-out check and end-play measuring machine, it is characterised in that：Described rotating machine
Structure, which is provided with, is located at cylinder（51）On stand（55）, described stand（55）It is provided with and passes through actuator（512）The active of driving
Wheel（56）, described stand（55）On be additionally provided with and driving wheel（56）Coordinate the driven pulley rotated（57）.
8. wheel according to claim 1 is to run-out check and end-play measuring machine, it is characterised in that：Described underframe
（1）It is provided with into wheel guide rail（2）, described enters to take turns guide rail（2）It is provided with gear wheel mechanism（3）, described gear wheel mechanism（3）It is provided with
With entering to take turns guide rail（2）4th pushing meanss of connection（31）, described the 4th pushing meanss（31）Pass through thrust block pad（32）With can
It is dynamic to be connected into wheel guide rail（2）On baffle plate（33）Connection.
9. wheel according to claim 7 is to run-out check and end-play measuring machine, it is characterised in that：Described underframe
（1）It is provided with push wheel mechanism（4）, described push wheel mechanism（4）Provided with the 5th pushing meanss（44）, described push wheel mechanism（4）
It is provided with and underframe（1）The rotary shaft of connection（45）, pushing meanss（44）By being packed in rotary shaft（45）On the arm of force（43）With
Rotary shaft（45）Connection, described rotary shaft（45）Two ends provided with promote wheel to push rod（41）.
10. the wheel according to claim any one of 1-9 is to run-out check and end-play measuring machine, it is characterised in that：Institute
The support base stated（6）It is provided with and measuring mechanism（10）The control flow of connection（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151013.8U CN206583414U (en) | 2017-02-20 | 2017-02-20 | Wheel is to run-out check and end-play measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151013.8U CN206583414U (en) | 2017-02-20 | 2017-02-20 | Wheel is to run-out check and end-play measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583414U true CN206583414U (en) | 2017-10-24 |
Family
ID=60092397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720151013.8U Active CN206583414U (en) | 2017-02-20 | 2017-02-20 | Wheel is to run-out check and end-play measuring machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN206583414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037462A (en) * | 2020-01-14 | 2020-04-21 | 黄国强 | Fixing device is used in accurate processing of wheel pair |
-
2017
- 2017-02-20 CN CN201720151013.8U patent/CN206583414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037462A (en) * | 2020-01-14 | 2020-04-21 | 黄国强 | Fixing device is used in accurate processing of wheel pair |
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