CN206891310U - The mandrel circular runout amount detecting device of water pump bearing - Google Patents
The mandrel circular runout amount detecting device of water pump bearing Download PDFInfo
- Publication number
- CN206891310U CN206891310U CN201720575385.3U CN201720575385U CN206891310U CN 206891310 U CN206891310 U CN 206891310U CN 201720575385 U CN201720575385 U CN 201720575385U CN 206891310 U CN206891310 U CN 206891310U
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- China
- Prior art keywords
- water pump
- mandrel
- pump bearing
- positioning
- drive shaft
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Abstract
It the utility model is related to a kind of mandrel circular runout amount detecting device of water pump bearing, including support, outer ring for positioning fixed water pump bearing outer ring positions the detection table of fixed seat and the detection of mandrel radial beat eccentricity, the mandrel drive mechanism and ejector pin mechanism for being divided into water pump bearing mandrel axial direction both ends are additionally provided with support, described mandrel drive mechanism includes driving axle bed and drive shaft, drive shaft turns are arranged on driving axle bed, drive shaft is provided with the clutch of disengaging type drive connection drive shaft and water pump bearing mandrel close to one end of delineation position fixed seat, the drive shaft other end is the power intake of driving drive shaft turns, the ejector pin mechanism includes the thimble seat on support and the positioning thimble of axially position is realized for contradicting water pump bearing mandrel, positioning thimble is arranged on thimble seat.With water pump bearing mandrel uniform stressed is rotated, ensure that the running accuracy of mandrel, measurement result accurately and reliably the advantages of.
Description
Technical field
Bearing testing equipment technical field is the utility model is related to, is specifically the mandrel radial beat eccentricity of water pump bearing
Detection means.
Background technology
Water pump bearing circular runout Kia detection is to examine an important indicator of water pump bearing, but due to no specialty
Detecting instrument, detection mode that different factories and client use is different, and resulting testing result difference is also very big.It is now main
The mode for detecting shaft run-out is that manually rotary shaft, so detection produce very big error.
The content of the invention
The present utility model purpose：The defects of to overcome prior art to exist, the utility model, which provides one kind, makes water pump
Bearing core shaft uniform stressed rotates, and ensure that the running accuracy of mandrel, makes the mandrel of measurement result accurately and reliably water pump bearing
Circular runout amount detecting device.
To achieve the above object, the utility model provides following technical scheme：
A kind of mandrel circular runout amount detecting device of water pump bearing, including support, for positioning outside fixed water pump bearing
The outer ring positioning fixed seat of circle and the detection table of mandrel radial beat eccentricity detection, it is characterised in that：Also set on described support
There are the mandrel drive mechanism and ejector pin mechanism for being divided into water pump bearing mandrel axial direction both ends, described mandrel drive mechanism includes driving
Moving axis seat and drive shaft, drive shaft turns are arranged on driving axle bed, and the drive shaft is close to one end of delineation position fixed seat
Clutch provided with disengaging type drive connection drive shaft and water pump bearing mandrel, the drive shaft other end are driving drive shaft turns
Power intake, the ejector pin mechanism include the thimble seat on support and realized axially for contradicting water pump bearing mandrel
The positioning thimble of positioning, positioning thimble are arranged on thimble seat.
The mandrel circular runout amount detecting device operation principle of water pump bearing of the present utility model is：Water pump bearing is installed
Draw a circle to approve in the fixed seat of position and fixed using outer ring outside, mandrel one end of water pump bearing contradicts through thimble and realizes water pump bearing core
The axially position of axle, the drive shaft of mandrel drive mechanism reaches through the linkage of the mandrel of clutch and water pump bearing can drive pump shaft
The mandrel that holds rotates, by detection table beat water pump bearing mandrel radially and be zeroed, after installation, the drive of mandrel drive mechanism
The mandrel rotation of dynamic water pump bearing, and read reading on detection table and obtain radial beat eccentricity；After the completion of detection, clutch and water pump
The mandrel separation of bearing, realizes power cut.Using mandrel drive mechanism band moving mandrel rotate, avoid can be manually rotated it is caused
Error, make value measured by core shaft run-out accurately and reliably.
Preferably, the clutch includes the barrel coaxial with drive shaft, and the driving axle bed is with axial along drive shaft
The mode of direction slidably adjusting position is arranged on support, so as to realize that the bottom wall of the barrel and water pump bearing mandrel can
Clutch coordinates, and drives and is provided with position locked component between axle bed and support.Under the structure design, by mobile driving axle bed come real
The mandrel clutch of existing barrel and water pump bearing reaches drive connection and power cut；Its is simple in construction, easy to operate.
Preferably, the bottom wall of the barrel is provided with rubber washer.Under the structure design, increase barrel and mandrel it
Between frictional force, improve power transmission reliability.
Preferably, the outer ring positioning fixed seat includes base and outer ring positioning fixed seat body, and peace is fixed on base
Lift adjustment screw rod is provided with equipped with positioning guide shaft, rotation and provided with gear cavity, positions guide shaft and lift adjustment screw rod longitudinal direction
Set, be provided with travelling gear and driving gear in gear cavity, travelling gear is fixedly set on lift adjustment screw rod, driving gear
Rotation is arranged on base, and the gear cavity has the opening for appearing base side wall, and the outer circumferential side of the driving gear has dew
Go out the regulation operation wheel portion of gear cavity opening, driving gear engages with travelling gear, is set on the outer ring positioning fixed seat body
There are positioning shaft hole and screwed hole, the positioning shaft hole of the outer ring positioning fixed seat body is socketed on positioning guide shaft, outer delineation
The screwed hole screw thread of position fixed seat body is rotatably connected on lift adjustment screw rod, and the drive shaft is located at same axis with positioning thimble
On.Under the structure design, the regulation operation wheel portion for stirring driving gear drives lift adjustment screw rod to rotate through travelling gear, so as to
Outer ring positioning fixed seat body lifting is driven, it is high to be finally reached the water pump bearing mandrel that regulation is installed in outer ring positioning fixed seat
Degree so that the mandrel of water pump bearing and positioning thimble are coaxial, so as to ensure that the mandrel of water pump bearing, drive shaft and positioning thimble are same
Axle, ensure that detection is reliable；The advantages of with regulation convenient and reliable operation.
Preferably, the driving gear is less than driven gear.Under the structure design, driving gear is less than driven gear, real
Existing little gear drives gear wheel to reach slowing effect, so as to improve degree of regulation, convenient regulation operation.
Preferably, the outer ring positioning fixed seat includes support base, V-shaped groove is provided with the top of support base, along V-shaped groove length side
The first gripping block and the second gripping block being intervally arranged to both ends, interval is formed along axle between the first gripping block and the second gripping block
To the holding chamber for clamping water pump bearing outer ring, V-shaped part is respectively provided with the top of first gripping block and the second gripping block.The structure
Under design, water pump bearing is shelved through V-shaped groove positioning, after outer race shaft through the first gripping block and the second gripping block to water pump bearing
It is fixedly clamped to both ends, there is the advantages of water pump bearing convenient disassembly and reliable positioning.
Preferably, first gripping block is fixedly mounted on support base, and the second gripping block is that outline is adapted to V-groove
V-block, the second gripping block slide-and-guide is matched with V-groove, and bolt lock is provided between second gripping block and support base
Tight mechanism, screw bolt locking mechanism include the second gripping block of driving and slided along V-groove and to the locking of the second gripping block position locking
Bolt, clamping screw rotation are actively tied on support base.Under the structure design, rotational lock bolt realizes the second gripping block of driving
Activity reaches the axial grip and release to water pump bearing outer ring, easy to operate.
Preferably, the V-groove bottom is provided with the deep gouge extended along V-groove, and the bottom of second gripping block, which is provided with, determines
Position sliding block, positioning sliding block are snug fit in deep gouge.Under the structure design, the mounting structure of the second gripping block is compact and firm
Reliably.
Preferably, the clamping screw position rotating is matched with support base, and positioning sliding block is provided with matches somebody with somebody with clamping screw
The internal thread hole of conjunction.Under the structure design, positioning sliding block is substantially nut, rotational lock bolt, so that the second gripping block
Moved along clamping screw, the screw thread on the internal thread hole and tie down screw of positioning sliding block realizes position locking action；Overall structure
Simple and compact.
Preferably, the driving axle bed includes the opening sleeve of radially flexible opening, and the openend of opening sleeve is provided with spiral shell
Bolt assembly, opening sleeve is interior to be embedded with rolling bearing, and the openend that opening sleeve covers through bolt assembly lock opening, which is realized, clasps fixation
The rolling bearing, drive shaft are supported in opening sleeve through rolling bearing.Under the structure design, unclamp bolt assembly and reach release
Opening sleeve, then easily rolling bearing can be split out out of opening sleeve, equally be also convenient for rolling bearing and load in opening sleeve, locking
Bolt assembly reaches locking, has the advantages of convenient disassembly.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the mandrel radial beat eccentricity structure of the detecting device schematic diagram of the utility model specific embodiment water pump bearing；
Fig. 2 is that the utility model specific embodiment outer ring positions fixed seat structure schematic diagram；
Fig. 3 is that the utility model specific embodiment outer ring positions fixed seat body construction schematic diagram；
Fig. 4 is the utility model specific embodiment understructure schematic diagram；
Fig. 5 is the utility model specific embodiment driving mechanism structure schematic diagram.
Embodiment
As shown in Fig. 1 ~ 5, a kind of mandrel circular runout amount detecting device of water pump bearing disclosed in the utility model, including
The detection of support 1, the outer ring positioning fixed seat 2 for positioning the fixed outer ring of water pump bearing 9 and the detection of mandrel radial beat eccentricity
Table 3（Can ability dial gauge or amesdial）, the core for being divided into the mandrel axial direction both ends of water pump bearing 9 is additionally provided with described support 1
Axle drive mechanism 3 and ejector pin mechanism 4, described mandrel drive mechanism 3 include driving axle bed 31 and drive shaft 32, drive shaft 32
It is rotatably arranged on driving axle bed 31, the drive shaft 32 is connected close to one end of delineation position fixed seat 2 provided with disengaging type
The clutch of drive shaft 32 and the mandrel of water pump bearing 9, the power intake that the other end of drive shaft 32 rotates for driving drive shaft 32,
The ejector pin mechanism 4 includes the thimble seat 41 on support 1 and realizes axially position for contradicting the mandrel of water pump bearing 9
Positioning thimble 42, positioning thimble 42 are arranged on thimble seat 41.The power intake installation handwheel 33 of drive shaft 32, using manual
Drive shaft turns are shaken, can also use motor direct-drive drive shaft turns certainly.Positioning fixed seat in outer ring can use fixed peace
On support.
The clutch includes the barrel 34 coaxial with drive shaft 32, and the driving axle bed 31 is with axial along drive shaft 32
The mode of direction slidably adjusting position is arranged on support 1, so as to realize the bottom wall of the barrel 34 and the core of water pump bearing 9
Axle can clutch coordinate, drive and be provided with position locked component between axle bed 31 and support 1（Do not illustrated in figure）, position locked component
Bolt can be used to push against on support 1, coordinate driving axle bed 31 and T-slot on support 1 and T-shaped block structure coordinates and reaches position lock
It is fixed.Realize that the mandrel clutch of barrel and water pump bearing reaches drive connection and power cut by mobile driving axle bed；Its
It is simple in construction, it is easy to operate.The bottom wall of the barrel 34 is provided with rubber washer 341.Increase between barrel and mandrel
Frictional force, improve the reliability of power transmission.To position between positioning thimble and the mandrel of water pump bearing, thimble seat and
The identical fit structure between driving axle bed and support can be used between support, can also use outer ring positioning fixed seat and support
Between use driving axle bed and support between identical fit structure.
The outer ring positioning fixed seat 2 includes base 21 and outer ring positioning fixed seat body 22, and peace is fixed on base 21
Lift adjustment screw rod 212 is provided with equipped with positioning guide shaft 211, rotation and provided with gear cavity 210, positions guide shaft 211 and lifting
Adjusting screw rod 212 is longitudinally disposed, and travelling gear 213 and driving gear 214 are provided with gear cavity, and travelling gear 213 fixes suit
On lift adjustment screw rod 212, driving gear 214 is rotated and is arranged on base 21, and the gear cavity 210, which has, appears base 21
The opening 2100 of side wall, the outer circumferential side of the driving gear 214 have the regulation operation wheel portion for exposing gear cavity opening 2100
2141, driving gear 214 engages with travelling gear 213, and the driving gear 214 is less than driven gear 214, the outer ring positioning
Fixed seat body 22 is provided with positioning shaft hole 221 and screwed hole 222, the positioning shaft hole of the outer ring positioning fixed seat body 22
221 are socketed on positioning guide shaft 211, and the screw thread of screwed hole 222 of outer ring positioning fixed seat body 22 is rotatably connected in lift adjustment screw rod
On 212, the drive shaft 32 is located on same axis with positioning thimble 42.The regulation operation wheel portion of driving gear is stirred through transmission
Gear driving lift adjustment screw rod rotates, so as to drive outer ring positioning fixed seat body lifting, be finally reached regulation be installed on it is outer
Draw a circle to approve the water pump bearing mandrel height in the fixed seat of position so that the mandrel of water pump bearing and positioning thimble are coaxial, so as to ensure water
The mandrel of pump bearing, drive shaft and positioning thimble are coaxial, ensure that detection is reliable；The advantages of with regulation convenient and reliable operation.
In addition, outer ring positioning fixed seat 2 includes support base 22-1, in this specific embodiment, outer ring positions fixed seat
When being set using base and outer ring positioning fixed seat body, support base is the pedestal in outer ring positioning fixed seat body, i.e., outer
Delineation position fixed seat body includes support base, V-shaped groove 22-11 is provided with the top of support base 22-1, along V-shaped groove 22-11 length directions
The the first gripping block 22-2 and the second gripping block 22-3, the first gripping block 22-2 and the second gripping block 22-3 that both ends are intervally arranged it
Between interval form the holding chamber for clamping water pump bearing 9 outer ring vertically, the first gripping block 22-2 and the second gripping block 22-3
Top be respectively provided with V-shaped part.The first gripping block 22-2 is fixedly mounted on support base 22-1, and the second gripping block 22-3 is outer
The V-block that profile is adapted to V-groove 22-11, the second gripping block 22-3 slide-and-guides are matched with V-groove 22-11, and described second
Screw bolt locking mechanism is provided between gripping block 22-3 and support base 22-1, screw bolt locking mechanism includes the second gripping block 22-3 of driving
Slided along V-groove 22-11 and to the clamping screw 22-4 of the second gripping block 22-3 positions locking, clamping screw 22-4 rotations are dynamic to match somebody with somebody
Together on support base 22-1.The V-groove 22-11 bottoms are provided with the deep gouge 22-12 along V-groove 22-11 extensions, second folder
Tight block 22-3 bottom is provided with positioning sliding block 22-31, and positioning sliding block 22-31 is snug fit in deep gouge 22-12.The locking screw
Bolt 22-4 position rotatings are matched with support base 22-1, and positioning sliding block 22-31 is provided with the interior spiral shell coordinated with clamping screw 22-4
Pit 22-32.
In this specific embodiment, the driving axle bed 31 includes the opening sleeve 311 of radially flexible opening, opening sleeve
311 openend is provided with bolt assembly, is embedded with rolling bearing 312 in opening sleeve 311, opening sleeve 311 is locked through bolt assembly
The openend of opening sleeve 311, which is realized, clasps the fixed rolling bearing 312, and drive shaft 32 is supported on opening through rolling bearing 312
In set 311, bolt assembly includes screw bolt and nut, reaches locking using the cooperation of screw bolt and nut and unclamps the opening of opening sleeve
End.
The mandrel circular runout amount detecting device operation principle of water pump bearing of the present utility model is：Water pump bearing is installed
Draw a circle to approve in the fixed seat of position and fixed using outer ring outside, mandrel one end of water pump bearing contradicts through thimble and realizes water pump bearing core
The axially position of axle, the drive shaft of mandrel drive mechanism reaches through the linkage of the mandrel of clutch and water pump bearing can drive pump shaft
The mandrel that holds rotates, by detection table beat water pump bearing mandrel radially and be zeroed, after installation, the drive of mandrel drive mechanism
The mandrel rotation of dynamic water pump bearing, and read reading on detection table and obtain radial beat eccentricity；After the completion of detection, clutch and water pump
The mandrel separation of bearing, realizes power cut.Using mandrel drive mechanism band moving mandrel rotate, avoid can be manually rotated it is caused
Error, make value measured by core shaft run-out accurately and reliably.
Claims (10)
1. a kind of mandrel circular runout amount detecting device of water pump bearing, including support, for positioning fixed water pump bearing outer ring
Outer ring positioning fixed seat and mandrel radial beat eccentricity detection detection table, it is characterised in that：It is additionally provided with described support
The mandrel drive mechanism and ejector pin mechanism at water pump bearing mandrel axial direction both ends are divided into, described mandrel drive mechanism includes driving
Axle bed and drive shaft, drive shaft turns are arranged on driving axle bed, and the drive shaft is set close to one end of delineation position fixed seat
There is the clutch of disengaging type drive connection drive shaft and water pump bearing mandrel, the drive shaft other end moves for driving drive shaft turns
Power input, the ejector pin mechanism include the thimble seat on support and axially determined for contradicting water pump bearing mandrel and realizing
The positioning thimble of position, positioning thimble are arranged on thimble seat.
2. the mandrel circular runout amount detecting device of water pump bearing according to claim 1, it is characterised in that：The clutch
Including the barrel coaxial with drive shaft, the driving axle bed is set in a manner of along drive shaft axial direction slidably adjusting position
Put on support, so as to realize the bottom wall of the barrel and water pump bearing mandrel can clutch coordinate, drive axle bed and support it
Between be provided with position locked component.
3. the mandrel circular runout amount detecting device of water pump bearing according to claim 2, it is characterised in that：The barrel
Bottom wall be provided with rubber washer.
4. according to the mandrel circular runout amount detecting device of 1 or 2 or 3 water pump bearing of claim, it is characterised in that：It is described
Outer ring positioning fixed seat includes base and outer ring positioning fixed seat body, is installed with positioning guide shaft on base, rotation is set
It is equipped with lift adjustment screw rod and provided with gear cavity, positions guide shaft and lift adjustment screw rod is longitudinally disposed, be provided with and pass in gear cavity
Moving gear and driving gear, travelling gear are fixedly set on lift adjustment screw rod, and driving gear is rotated and is arranged on base, institute
Stating gear cavity has the opening for appearing base side wall, and the outer circumferential side of the driving gear has the regulation behaviour for exposing gear cavity opening
Make wheel portion, driving gear engages with travelling gear, and the outer ring positioning fixed seat body is provided with positioning shaft hole and screwed hole,
The positioning shaft hole of the outer ring positioning fixed seat body is socketed on positioning guide shaft, and outer ring positions the screwed hole spiral shell of fixed seat body
Line is rotatably connected on lift adjustment screw rod, and the drive shaft is located on same axis with positioning thimble.
5. the mandrel circular runout amount detecting device of water pump bearing according to claim 4, it is characterised in that：The driving tooth
Wheel is less than driven gear.
6. according to the mandrel circular runout amount detecting device of 1 or 2 or 3 water pump bearing of claim, it is characterised in that：It is described
Outer ring positioning fixed seat includes support base, and support base top is provided with V-shaped groove, the to be intervally arranged along V-shaped groove length direction both ends
One gripping block and the second gripping block, interval is formed between the first gripping block and the second gripping block clamps water pump bearing outer ring vertically
Holding chamber, be respectively provided with V-shaped part at the top of first gripping block and the second gripping block.
7. the mandrel circular runout amount detecting device of water pump bearing according to claim 6, it is characterised in that：First folder
Tight block is fixedly mounted on support base, and the second gripping block is the V-block that outline is adapted to V-groove, and the second gripping block is slided and led
To being matched with V-groove, screw bolt locking mechanism is provided between second gripping block and support base, screw bolt locking mechanism includes driving
Dynamic second gripping block is slided along V-groove and the clamping screw of the second gripping block position locking, clamping screw rotation is actively tied in
On support base.
8. the mandrel circular runout amount detecting device of water pump bearing according to claim 7, it is characterised in that：The V-groove
Bottom is provided with the deep gouge extended along V-groove, and the bottom of second gripping block is provided with positioning sliding block, and positioning sliding block is snug fit at
In deep gouge.
9. the mandrel circular runout amount detecting device of water pump bearing according to claim 8, it is characterised in that：The locking screw
For anchoring position rotatable engagement on support base, positioning sliding block is provided with the internal thread hole coordinated with clamping screw.
10. according to the mandrel circular runout amount detecting device of 1 or 2 or 3 water pump bearing of claim, it is characterised in that：Institute
Stating driving axle bed includes the opening sleeve of radially flexible opening, and the openend of opening sleeve is provided with bolt assembly, and opening sleeve embeds
Equipped with rolling bearing, the fixed rolling bearing, driving are clasped in the openend realization that opening sleeve covers through bolt assembly lock opening
Axle is supported in opening sleeve through rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575385.3U CN206891310U (en) | 2017-05-22 | 2017-05-22 | The mandrel circular runout amount detecting device of water pump bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575385.3U CN206891310U (en) | 2017-05-22 | 2017-05-22 | The mandrel circular runout amount detecting device of water pump bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206891310U true CN206891310U (en) | 2018-01-16 |
Family
ID=61320277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720575385.3U Expired - Fee Related CN206891310U (en) | 2017-05-22 | 2017-05-22 | The mandrel circular runout amount detecting device of water pump bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206891310U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519068A (en) * | 2018-04-29 | 2018-09-11 | 北京光宇之勋科技有限公司 | A kind of clamping device for test piece geometric error |
| CN108827202A (en) * | 2018-06-07 | 2018-11-16 | 无锡四纬测控技术有限公司 | A kind of bounce of thin-wall pipe outer circle and axial direction degree measuring device |
| CN109579754A (en) * | 2019-01-14 | 2019-04-05 | 海克斯康测量技术(青岛)有限公司 | A kind of gear shaft diameter jump automatic measuring equipment |
| CN110174034A (en) * | 2019-02-24 | 2019-08-27 | 江苏扬碟钻石工具有限公司 | A kind of bearing race semi-finished product glitch detection tool |
| CN110986724A (en) * | 2019-12-27 | 2020-04-10 | 成都齐平科技有限公司 | Tool bit detection device that beats |
| CN111141242A (en) * | 2020-02-18 | 2020-05-12 | 安徽工业大学 | Vehicle brake drum surface full run-out detection device |
-
2017
- 2017-05-22 CN CN201720575385.3U patent/CN206891310U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519068A (en) * | 2018-04-29 | 2018-09-11 | 北京光宇之勋科技有限公司 | A kind of clamping device for test piece geometric error |
| CN108827202A (en) * | 2018-06-07 | 2018-11-16 | 无锡四纬测控技术有限公司 | A kind of bounce of thin-wall pipe outer circle and axial direction degree measuring device |
| CN109579754A (en) * | 2019-01-14 | 2019-04-05 | 海克斯康测量技术(青岛)有限公司 | A kind of gear shaft diameter jump automatic measuring equipment |
| CN110174034A (en) * | 2019-02-24 | 2019-08-27 | 江苏扬碟钻石工具有限公司 | A kind of bearing race semi-finished product glitch detection tool |
| CN110986724A (en) * | 2019-12-27 | 2020-04-10 | 成都齐平科技有限公司 | Tool bit detection device that beats |
| CN110986724B (en) * | 2019-12-27 | 2022-07-29 | 成都齐平科技有限公司 | Tool bit detection device that beats |
| CN111141242A (en) * | 2020-02-18 | 2020-05-12 | 安徽工业大学 | Vehicle brake drum surface full run-out detection device |
| CN111141242B (en) * | 2020-02-18 | 2021-11-19 | 安徽工业大学 | Vehicle brake drum surface full run-out detection device |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180116 Termination date: 20180522 |