CN207540471U - Oscillating bearing gap detection device - Google Patents
Oscillating bearing gap detection device Download PDFInfo
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- CN207540471U CN207540471U CN201721594255.0U CN201721594255U CN207540471U CN 207540471 U CN207540471 U CN 207540471U CN 201721594255 U CN201721594255 U CN 201721594255U CN 207540471 U CN207540471 U CN 207540471U
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Abstract
A kind of oscillating bearing gap detection device disclosed in the utility model, it is desirable to provide a kind of high certainty of measurement, the high detection device of detection efficiency.The utility model is achieved by following technical proposals：The longitudinal thickness direction of base platform (6) is formed with the axial radial alignment V-block of connection and/or compresses the axial force distribution screw rod (5) of centering V-block, measured workpiece is fixed on positioning table (4) by oscillating bearing inner ring end-face hole by the clamp nut on interchangeable mandrel (1), and axial force distribution screw rod (5) and radially force screw rod (8) drive its lower connected axially eccentric cam (14), radial disbalance cam (15) respectively；Radially force screw rod rotation, positioning table is driven to generate upper and lower and be moved forward and backward, be arranged on the radial clearance indicator of front end locating piece (16) horizontal plane and the axial gap indicator being arranged on above oscillating bearing inner ring (12) obtain measured workpiece axis, radial clearance measurement result.
Description
Technical field
The utility model is related to oscillating bearing 0.0mm~1.0mm after part is installed on is measured in a kind of mechanical processing
The rapid measurement device of radial clearance, the measurement problem of axial gap.
Background technology
With the fast development of mechanical industry, oscillating bearing has been widely used in aerospace, Precision Machining, automobile
In several big pillar industries of national economy such as manufacture, such as tail extension bar in aircraft shock absorber with double seal arrangement, rocket bearing support etc. is to realize peace
Dress is convenient, can adapt to the variation of low-angle automatically at work, all largely uses oscillating bearing.Universal joint bearing belongs to non-
Fluid friction sliding bearing (friction coefficient μ 0.05), working life are inversely proportional to relative sliding velocity v and contact stress p, only suitable
For low speed oscillations occasion (n≤30 beat/min), when working speed rises, it will slidingsurface is caused drastically to wear, bearing temperature
Degree steeply rises, and causes bearing rapid failure.Rolling bearing should also ensure that other than radial clearance to be ensured between axial direction
Gap.When detecting axial gap, axis is moved into an extreme position, then measures axis from an extreme position with clearance gauge or dial gauge
To shifting amount, that is, axial gap of another extreme position.Radial direction of the oscillating bearing after part is installed on and in use, repair
Gap, axial gap the quick of measurement measure the technical issues of being all key, to radial clearance, the axial direction in using, repairing
The control in gap will directly affect instrument properties of product, therefore, it is necessary to in using, repair after oscillating bearing radial clearance, axis
It is carried out efficiently and the measurement of precision to gap.However, in production, use, repair, oscillating bearing is installed between the radial direction after part
It is difficult to solve that gap, axial gap, which measure problem, and the measurement accuracy requirement of 0.0mm~1.0mm is high.
When oscillating bearing is not installed on workpiece, oscillating bearing can carry out radial clearance, axial gap by special instrument
Measurement, but oscillating bearing be by being interference fitted and applying in certain coupling mechanism force Assembly part, oscillating bearing install
Radial clearance, axial gap after part can change with the size of interference volume and coupling mechanism force, after part is installed on,
The quick of the measurement of radial clearance, axial gap in use, after repair measures problem, be key technology in linear measure longimetry and
One of difficult point.The prior art is typically to load lotus block using single bearing, then measures bearing internal external lasso end face with amesdial
Difference or judge internal space ring and external space ring tightness with feel.But for various reasons, error is easily generated.If it is completed in general assembly
After go wrong, need to dismantle, measure, install again, it is time-consuming.The work slidingsurface of the inside and outside circle of oscillating bearing is few
Hemisphere face, outer ring can mutually be swung with inner ring, and common height-gauge can not measure the parameter.Original detection
There are mainly two types of means：The first is measured using mandrel method, and there are four defects for the method for inspection：
(1) each model need to be equipped with a mandrel consistent with blowout patche internal diameter size；
(2) mandrel and blowout patche are clearance fits, and gap is too big, and measurement error is big；Gap is too small, it is not easy to which loading, unloading go out
Mandrel measures difficult；
(3) big model and product of large quantities are detected, during loading, unloading go out mandrel to the physical fitness requirement of reviewer compared with
Height, labor intensity is big, and careless slightly may weigh finger wounded；
(4) often set time measures and to repeat loading, unloading and go out mandrel, and detection efficiency is low.
It uses miking method second, is measured, needed during measurement anti-in the symmetric position of product with two micrometers
The measured value of the whole micrometer of polyphony, until after the measured value of two micrometers is consistent, measured value at this time is to assemble height.It should
Planting method of inspection defect is：
(1) two micrometer, which obtains repeatedly to adjust, can just obtain measured value, and measurement is cumbersome, and efficiency is low, be not suitable for measure batch；
(2) certain measurement technical ability is needed, can just obtain accurate measured value.The defects of both the above measuring method, is main
Be in order to overcome outer ring and inner ring that can mutually swing in the measurements and caused by, so how quick in the measurements to ensure that two survey
Amount datum level is mutually parallel, and this measures emphasis and core of the difficult point as design.
In Automatic manual transmission, the fit clearance of oscillating bearing and moving axis must be suitable, and can just make oscillating bearing uses the longevity
Life is more permanent.Oscillating bearing may bear certain axial load while radial load is born.Bearing radial load
When, support shaft and bearing saddle bore must provide oscillating bearing and reliably and uniformly support, and can just make oscillating bearing running at full capacity.
In actual use, the main failure forms of oscillating bearing are abrasions, since abrasion makes the clearance of Bearing inner significantly increase, from
And the vibration at bearings position and noise is caused to increase, the operating status of machinery is made to be deteriorated, often resulting in bearing cannot normal work
Make, bearing is made to be destroyed before fatigue damage.Therefore the tappet of oscillating bearing and the fit clearance of guide sleeve are not greater than
It is replaced when 0.6mm is more than.Oscillating bearing spherical surface radial direction abrasion loss on guide sleeve should be replaced when being more than 0.5mm.Joint shaft
Hold the hole use at both ends, circlip for shaft answers the good flawless of elasticity.Clamping pin that tappet lower end is connect with pressure head or idler wheel,
It is more than 12mm that holding screw, which answers good pressure head bottom or idler wheel to wear away the fit clearance that must not exceed between bound requirements roller pin, hole,
When should replace compression and should replace when tension spring fractures, is plastically deformed, corrosion is serious.Big load, low speed and profit are occurring for oscillating bearing
It is sliding it is insufficient in the case of, it is easy to generate high friction and be seriously worn, thus the service life of oscillating bearing be mainly its friction with
Wear-out life.And rub, wear phenomenon is sufficiently complex, it is very difficult for accurately calculating this service life.Usual joint
The detection that bearing is installed on the radial clearance after part, axial gap measures generally uses following method.
1st, ruler detection method, rolling bearing common type are matched：Rolling mill bearing, oscillating bearing, turntable bearing, band base spherical outside surface axis
It holds, thrust ball bearing, unilateral bearing, completely fill roller bearing, thrust roller bearing, linear motion bearing.For what is be relatively large in diameter
Bearing, gap is larger, is directly detected with relatively narrow clearance gauge.For the smaller bearing of diameter, gap is smaller, and inconvenience is surveyed with clearance gauge
Amount, but the sideshake of bearing, it is necessary to be measured with the appropriate clearance gauge of thickness.
2nd, lead extrusion detection method.It is accurate but more bothersome compared with being detected with clearance gauge with lead extrusion method detection rolling bearing gap.Detection institute
Aluminium wire should be soft, and diameter should not be too big or too small, 1.5~2 times of optimal a diameter of gap, leads in real work
Common soft lead wire is detected.During detection, first bearing cap is opened, selects the galvanized wire of appropriate diameter, be cut into 15~40 millis
The long segment of rice, be placed on axle journal and metal (upper interface at, cover bearing cap, tighten fixing bolt by prescribed torque, so
It is loosering a bolt afterwards, is removing bearing cap, with the galvanized wire thickness of micrometer detection flattening, the average value in bearing top gap is obtained.If
Bottom clearance is too small, can on upper and lower watt of faying face cushioning.If too big, subtract pad, scraping or pour again watt.
3rd, bearing shell clamp force measuring method is adjusted.The rotationally and axially shifting that bearing shell may occur during the work time in order to prevent
Dynamic, other than cooperation interference and stop part, bearing shell compresses bearing cap to measure, and method is measured soft with surveying as bottom clearance method
Galvanized wire thickness calculates bearing shell clamp force (being represented with the compressed elastic deformation amount of bearing shell), bearing shell pressing force controlled quentity controlled variable 0.02
~0.04 millimeter.Pressing force is not inconsistent standardization, is adjusted with the method for increase and decrease bearing and the spacer thickness at bearing block composition surface,
Watt the back of the body mustn't cushioning.The above method is disadvantageous in that process is more, and measurement process is cumbersome, and measurement efficiency is low.It must be by people
Work operates the mobile measurement that could complete radial clearance, axial gap of measuring device, inconvenient, measurement radial clearance, axis
During gap, the degree of automation is not high, and measurement error is larger, the precision of radial clearance, axial gap detection is not also high.
Invention content
The utility model aim is a kind of simple in structure, easily operated in place of prior art Shortcomings, providing, and is surveyed
Accuracy of measurement is high, the high oscillating bearing gap detection device of detection efficiency, is installed on solving production, use, repairing oscillating bearing
Radial clearance, axial gap after part measure the problem of difficult.
Technical solution is used by the utility model solves the problems, such as：A kind of oscillating bearing gap detection device, including：Gu
The positioning table 4 being scheduled on base platform 6, the centering locating piece being fixed in 4 rectangular channel of positioning table indicate tested work
The radial clearance indicator 9 of part 10 and axial gap indicator 11, it is characterised in that：Radial alignment V-block 7 is fixed on described
The front end of rectangular channel, and it is close to front end locating piece 16, the rear that axial compression centering V-block 3 is arranged on the rectangular channel is formed
Opposite symmetrical V-arrangement positioning hole groove, V-arrangement positioning hole groove are formed with the screw hole of 6 platform of connect base, the front end locating piece 16 with
Base platform 6 between 7 backside of radial alignment V-block is equipped with the screw hole of connection radial direction force screw rod 8, and base platform 6 is indulged
The axial force distribution screw rod 5 for connecting above-mentioned axial-radial centering V-block 7 and/or compressing centering V-block 3 is formed with to thickness direction, is closed
Measured workpiece 10 is fixed on positioning table 4 by 12 end-face hole of bearings inner ring by the clamp nut 2 on interchangeable mandrel 1,
Axial force distribution screw rod 5 and radially force screw rod 8 drive its lower connected axially eccentric cam 14, radial disbalance cam 15 respectively；
Axially eccentric cam 14, radial disbalance cam 15 are axially eccentric convex in axial force distribution screw rod 5 and radially force screw rod 8 rotation
Wheel 14 rotates horizontally movement, and the generation of radial disbalance cam 15 is rotated up and down movement, and driving positioning table 4 generates upper and lower and preceding
After move, put the radial clearance indicator 9 in 16 horizontal plane of front end locating piece and the axis that is arranged on above oscillating bearing inner ring 12
To gap indicator 11 obtain 10 axis of measured workpiece, radial clearance measurement result.
The utility model has the following effects that compared with the prior art,
Simple in structure, easily operated, measurement efficiency is high.The utility model is fixed on rectangular channel using radial alignment V-block 7
Front end, and be close to front end locating piece 16, the rear that axial compression centering V-block 3 is arranged on the rectangular channel forms opposite right
The V-arrangement positioning hole groove of title is formed with the screw hole of 6 platform of connect base, front end locating piece 16 and radial alignment by V-arrangement positioning hole groove
Base platform 6 between 7 backside of V-block is equipped with the screw hole of connection radial direction force screw rod 8, the longitudinal thickness side of base platform 6
It measures and closes to the composition of axial force distribution screw rod 5 for being formed with the above-mentioned axial-radial centering V-block 7 of connection and/or compression centering V-block 3
The detection device in bearings gap, it is simple in structure, it is adaptable, easily operated, it is easy to use.Pass through two eccentric cams
With workbench can up and down, move left and right, ensure that measured piece there are one specific and correct measurement stroke.And it uses interchangeable
Mandrel so, can measure the oscillating bearing of different endoporus, and compress V-block and be suitable for different measured workpieces
Shape intuitively obtains measurement result by dial gauge, this makes radial clearance, axial gap measurement become very intuitive, instrument
It is worked with direct measurement method, when measurement does not need to be compared with standard component, disposable to complete between bearing radial gap, axial direction
Gap, end-play measure.
High certainty of measurement.The utility model is for oscillating bearing radial clearance, axial gap difficulty problem, using oscillating bearing
Inner ring end face positioning method, what the outer ring of oscillating bearing was floated is measured using eccentric method, can be with two of movable workbench partially
Cardiac prominence wheel belt moves movable workbench, and oscillating bearing is made to be moved under desired measuring force.X, Y of workpiece are adjusted by the screw rod that exerts a force
The movement in direction, with eccentric method combination work move, measured workpiece will not be damaged, can measure 0~1mm radial clearance,
Axial gap, repeatable accuracy≤1 μm, measurement accuracy greatly improve.Survey must be moved by manual operation by overcoming the prior art
Amount could complete the measurement of radial clearance, axial gap, inconvenient, the degree of automation is not high, between measurement radial clearance, axial direction
The defects of during gap, measurement error is larger, the precision of radial clearance, axial gap detection is not high.
Detection efficiency is high.The utility model uses 12 end face positioning method of oscillating bearing inner ring, passes through interchangeable mandrel 1, pressure
Tight nut 2 is fixed on tested 10 on positioning table 4.To axial force distribution screw rod 5 and radially, force screw rod 8 applies measurement respectively
It is required that measuring force, axial force distribution screw rod 5 and radially force screw rod 8 is divided into and does not drive axially eccentric cam 14, radial disbalance convex
Wheel 15 realizes that positioning table about 4 and is moved forward and backward, measurement is obtained by radial clearance indicator 9, axial gap indicator 11
As a result.Oscillating bearing is measured using eccentric method, the labor intensity for reducing reviewer measured using eccentric method is improved
Working efficiency, reduces labor intensity, and detection efficiency compares the prior art detection method detection efficiency of produced on-site practical application.
For the utility model using amesdial as instruction, measurement range is 0mm~1mm, calibrated dial 0.001mm.
Description of the drawings
Fig. 1 is the main-body structure schematic diagram of the utility model oscillating bearing gap detection device.
Fig. 2 is the partial sectional view of Fig. 1.
In figure：1. interchangeable mandrel, 2. clamp nuts, 3. axial compression centering V-blocks, 4. positioning tables, 5. axially apply
Power screw rod, 6. base platforms, 7. radial alignment V-blocks, 8. radial direction force screw rods, 9. radial clearance indicators, 10. tested works
Part, 11. axial gap indicators, 12. oscillating bearing inner rings, 13. oscillating bearing outer rings, 14. axially eccentric cams, 15. radially
Eccentric cam, 16 front end locating pieces.
Specific embodiment
Refering to Fig. 1,2.In an example described below, a kind of oscillating bearing gap detection device, including：It is fixed on
Positioning table 4 on base platform 6, the centering locating piece being fixed in 4 rectangular channel of positioning table indicate measured workpiece 10
Radial clearance indicator 9 and axial gap indicator 11.Wherein, before radial alignment V-block 7 is fixed on the rectangular channel
End, and it is close to front end locating piece 16, the rear that axial compression centering V-block 3 is arranged on the rectangular channel forms opposite symmetrical
V-arrangement positioning hole groove, V-arrangement positioning hole groove is formed with the screw hole of 6 platform of connect base, the front end locating piece 16 and radial alignment V
Base platform 6 between 7 backside of type block is equipped with the screw hole of connection radial direction force screw rod 8, the longitudinal thickness direction of base platform 6
It is formed with the axial force distribution screw rod 5 for connecting above-mentioned axial-radial centering V-block 7 and/or compressing centering V-block 3, oscillating bearing inner ring
12 end-face holes are fixed on tested 10 on positioning table 4 by the clamp nut 2 on interchangeable mandrel 1, axial force distribution screw rod 5 and
Radially force screw rod 8, which is divided into, does not drive its lower connected axially eccentric cam 14, radial disbalance cam 15, realizes positioning table
About 4 and be moved forward and backward, by being arranged on the radial clearance indicator 9 of 16 horizontal plane of front end locating piece, be arranged on oscillating bearing
The axial gap indicator 11 of the top of inner ring 12 obtain 10 axis of measured workpiece, radial clearance measurement result.Radially force screw rod 8
It is connected in radial disbalance cam 15, radial disbalance cam 15 is of coupled connections 9 water-level contact of radial clearance indicator.Axial gap refers to
Show device 11 by the L bracket being fixed in 4 a side of positioning table, 11 contact pilotage of axial gap indicator is against oscillating bearing
13 spherical surface of outer ring.Radial alignment V-block 7 and 3 bottom plate of axial compression centering V-block are perpendicular through in 4 phase of positioning table
Connecting shaft is to eccentric cam 14, and 5 level of axial force distribution screw rod is by 4 platform of positioning table, across radial alignment V-block 7 and axis
To the longitudinal movement for compressing 3 bottom plate screw control radial alignment V-block 7 of centering V-block and axial compression centering V-block 3.
During measurement：Oscillating bearing inner ring 12 in measured workpiece 10 is first assembled into contour inside and outside spacer ring and washer is attached to V
Shape positioning hole groove, interchangeable mandrel 1 are inserted into 12 endoporus of oscillating bearing inner ring, nut 2 are rotatably compressed, by 12 end face of oscillating bearing inner ring
It is pressed on positioning table 4, then by adjusting axial compression centering V-block 3 and radial alignment V-block 7 by measured workpiece
10 fix, and radial disbalance cam 15 are driven to do rotary motion to axial force distribution screw rod 5 by torque spanner respectively, radially exert a force screw rod
8 do the measuring force that rotary motion applies measurement request with trend eccentric cam 14, realize positioning table about 4 and front and rear shifting
It is dynamic, it does reciprocating linear motion, will measurement knot be obtained by amesdial radial clearance indicator 9, the reading of axial gap indicator 11
Fruit.
Claims (6)
1. a kind of oscillating bearing gap detection device, including：The positioning table (4) being fixed on base platform (6), is fixed on
Centering locating piece in positioning table (4) rectangular channel, the radial clearance indicator (9) and axial direction of instruction measured workpiece (10)
Gap indicator (11), it is characterised in that：Radial alignment V-block (7) is fixed on the front end of the rectangular channel, and is close to front end and determines
Position block (16), the rear that axial compression centering V-block (3) is arranged on the rectangular channel form opposite symmetrical V-arrangement location hole
Slot, V-arrangement positioning hole groove are formed with the screw hole of connect base platform (6), and oscillating bearing inner ring (12) end-face hole passes through interchangeable mandrel (1)
On clamp nut (2) measured workpiece (10) is fixed on positioning table (4), axial force distribution screw rod (5) and radially exert a force
Screw rod (8) drives its lower connected axially eccentric cam (14) and radial disbalance cam (15), driving positioning table (4) respectively
Generate upper and lower and be moved forward and backward, put front end locating piece (16) horizontal plane radial clearance indicator (9) and be arranged on joint shaft
Hold the axial gap indicator (11) above inner ring (12) obtain measured workpiece (10) axis, radial clearance measurement result.
2. oscillating bearing gap detection device as described in claim 1, it is characterised in that：The front end locating piece (16) and diameter
Base platform (6) between centering V-block (7) backside is equipped with the screw hole of connection radial direction force screw rod (8).
3. oscillating bearing gap detection device as described in claim 1, it is characterised in that：Radially force screw rod (8) is connected
Radial disbalance cam (15), radial disbalance cam (15) are of coupled connections radial clearance indicator (9) water-level contact.
4. oscillating bearing gap detection device as described in claim 1, it is characterised in that：Axial gap indicator (11) passes through
The L bracket being fixed in positioning table (4) a side, axial gap indicator (11) contact pilotage abut oscillating bearing outer ring
(13) spherical surface.
5. oscillating bearing gap detection device as described in claim 1, it is characterised in that：Radial alignment V-block (7) and axial direction
Centering V-block (3) bottom plate is compressed perpendicular through in the connected axially eccentric cam (14) of positioning table (4), axial force distribution
Screw rod (5) level is by positioning table (4) platform, across radial alignment V-block (7) and axial compression centering V-block (3) bottom
The longitudinal movement of portion's plate screw control radial alignment V-block (7) and axial compression centering V-block (3).
6. oscillating bearing gap detection device as described in claim 1, it is characterised in that：The longitudinal thickness of base platform (6)
Direction is formed with the axial force distribution screw rod (5) for connecting above-mentioned axial-radial centering V-block (7) and/or compressing centering V-block (3), such as
Oscillating bearing gap detection device described in claim 1, it is characterised in that：Axially eccentric cam (14), radial disbalance cam
(15) in axial force distribution screw rod (5) and radially force screw rod (8) rotation, axially eccentric cam (14) rotates horizontally movement, diameter
Movement is rotated up and down to eccentric cam (15) generation, driving positioning table (4) is generated upper and lower and is moved forward and backward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721594255.0U CN207540471U (en) | 2017-11-24 | 2017-11-24 | Oscillating bearing gap detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721594255.0U CN207540471U (en) | 2017-11-24 | 2017-11-24 | Oscillating bearing gap detection device |
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| CN207540471U true CN207540471U (en) | 2018-06-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211064A (en) * | 2018-09-12 | 2019-01-15 | 福建龙溪轴承(集团)股份有限公司 | A kind of bearings synthesis measuring device for windage |
| CN111007343A (en) * | 2019-12-26 | 2020-04-14 | 广州市一飞科技有限公司 | Pull-out nut sensor for aviation teaching model |
| CN113624149A (en) * | 2021-09-13 | 2021-11-09 | 南京林业大学 | Axial and radial play detection device for pull rod ball bearing |
| CN114001626A (en) * | 2021-11-10 | 2022-02-01 | 中国航发南方工业有限公司 | Device and method for measuring axial activity of rotor in engine blind cavity |
| CN114322896A (en) * | 2022-01-11 | 2022-04-12 | 嘉兴法斯顿动力科技有限公司 | Horizontal bearing radial clearance detection device and detection method |
| CN114353635A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Device and method for measuring gap between non-full-circle arc surfaces in force application state |
| CN114506724A (en) * | 2022-03-17 | 2022-05-17 | 重庆编福科技有限公司 | Joint structure for coiled material deviation rectifying system |
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2017
- 2017-11-24 CN CN201721594255.0U patent/CN207540471U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211064A (en) * | 2018-09-12 | 2019-01-15 | 福建龙溪轴承(集团)股份有限公司 | A kind of bearings synthesis measuring device for windage |
| CN109211064B (en) * | 2018-09-12 | 2023-09-19 | 福建龙溪轴承(集团)股份有限公司 | Comprehensive clearance measuring device for bearing |
| CN111007343A (en) * | 2019-12-26 | 2020-04-14 | 广州市一飞科技有限公司 | Pull-out nut sensor for aviation teaching model |
| CN113624149A (en) * | 2021-09-13 | 2021-11-09 | 南京林业大学 | Axial and radial play detection device for pull rod ball bearing |
| CN114353635A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Device and method for measuring gap between non-full-circle arc surfaces in force application state |
| CN114001626A (en) * | 2021-11-10 | 2022-02-01 | 中国航发南方工业有限公司 | Device and method for measuring axial activity of rotor in engine blind cavity |
| CN114001626B (en) * | 2021-11-10 | 2023-11-03 | 中国航发南方工业有限公司 | Device and method for measuring axial activity of inner rotor in blind cavity of engine |
| CN114322896A (en) * | 2022-01-11 | 2022-04-12 | 嘉兴法斯顿动力科技有限公司 | Horizontal bearing radial clearance detection device and detection method |
| CN114322896B (en) * | 2022-01-11 | 2023-10-20 | 牧川传动科技(浙江)有限公司 | Radial clearance detection equipment and method for horizontal bearing |
| CN114506724A (en) * | 2022-03-17 | 2022-05-17 | 重庆编福科技有限公司 | Joint structure for coiled material deviation rectifying system |
| CN114506724B (en) * | 2022-03-17 | 2023-11-07 | 重庆编福科技有限公司 | Joint structure for coiled material deviation correcting system |
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