CN110160454A - A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method - Google Patents
A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method Download PDFInfo
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- CN110160454A CN110160454A CN201910398588.3A CN201910398588A CN110160454A CN 110160454 A CN110160454 A CN 110160454A CN 201910398588 A CN201910398588 A CN 201910398588A CN 110160454 A CN110160454 A CN 110160454A
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- clearance
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- measuring rod
- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention discloses a kind of bearing assembly clearance on-line measurement machine and its clearance measurement methods.When bearing internal external circle assembles, it is inconsistent or even overproof to will lead to clearance.A kind of bearing of the present invention assembles clearance on-line measurement machine, including fuselage, worktable lifting rotating mechanism, clamping working table and constant pressure measuring mechanism.Clamping working table includes V-type positioning clamping block, clamping driving assembly and workbench.Constant pressure measuring mechanism includes pressure detector, traversing driving device, mounting blocks, guide rail, measurement sliding block, scale grating and grating reading head.Pressure detector includes measurement pole socket, pressure sensor and measuring rod.Spaced two pressure sensors are fixed in the pressure detecting slot of mounting blocks.Measuring rod passes through measurement pole socket, and top is located between two pressure sensors.The present invention holds device by design constant pressure measuring mechanism and work piece positioning, can solve the on-line measurement problem of the clearance in rolling bearing production line for automatically assembling.
Description
Technical field
The invention belongs to intelligent Manufacturing Technology fields, and in particular to a kind of assembly clearance on-line measurement of rolling bearing it is automatic
Change equipment and its clearance measurement method, the data of measurement are used to assess the important indicator of rolling bearing assembling quality.
Background technique
Bearing is important Mechanical Fundamentals component, and performance and quality determine the performance of machinery equipment to a certain extent
And quality.China is the maximum manufacturing nation and country of consumption of each class bearing, but there are larger compared with foreign technology and quality level
Gap.Currently, in bearing manufacture process, vehicle, mill transfer matic commonplace use.And the transfer lines of assembling are due to process
More, movement complexity, mostly by being accomplished manually.Since bearing assembling quality is very big on the influence of its total quality, therefore current bearing
One side low efficiency is assembled, another aspect assembling quality is inconsistent, therefore the unit processing side in bearing production line for automatically assembling
Method and equipment, as bearing internal external circle channel measuring machine, bearing assemble dress ball all-in-one machine, bearing retainer pressing machine, bearing are two-sided
The two-sided capping machine of grease filling machine, bearing, bearing assembly clearance on-line measurement machine and bearing clearance control method and system etc., one
It is directly technical problem urgently to be resolved.
Bearing assembly clearance on-line measurement machine is a kind of automation equipment of rolling bearing assembly clearance on-line measurement, measurement
Data be used to assess the important indicator of rolling bearing assembling quality.The ruler as present in bearing internal external circle channel process
Very little error is different, and in Internal and external cycle assembly, it is inconsistent or even overproof to will lead to clearance.
Summary of the invention
The purpose of the present invention is to provide a kind of bearings to assemble clearance on-line measurement machine.
A kind of bearing of the present invention assembles clearance on-line measurement machine, including the work of fuselage, worktable lifting rotating mechanism, clamping
Platform and constant pressure measuring mechanism.The clamping working table includes V-type positioning clamping block, clamping driving assembly and workbench.Work
Platform is mounted on fuselage by worktable lifting rotating mechanism.Two V-type positioning clamping blocks constitute sliding pair with workbench, and
It is driven by clamping driving assembly and carries out reverse sync movement.
The constant pressure measuring mechanism includes pressure detector, traversing driving device, mounting blocks, guide rail, measurement sliding block, mark
Ruler grating and grating reading head.The guide rail is fixed with fuselage.The measurement sliding block and guide rail constitutes sliding pair.Described
Mounting blocks are fixed on the bottom of measurement sliding block, and are driven by traversing driving device.The scale grating is fixed in fuselage
Side.Grating reading head is fixed on mounting blocks, and is arranged towards scale grating.
The pressure detector includes pressure sensor and measuring rod.The bottom surface of mounting blocks offers pressure detecting slot.
Spaced two pressure sensors are fixed in pressure detecting slot.The detection faces of two pressure sensors are oppositely arranged.It surveys
The top of gauge rod is located between two pressure sensors, and contacts with the detection faces of two pressure sensors.
Further, the central axis of the measuring rod is located at the plane of symmetry of two positioning sides of V-type positioning clamping block
It is interior.
Further, the clamping driving assembly includes clamping screw rod and clamping motor.Horizontally disposed clamping screw rod
Bearing is on the table.It clamps screw rod and uses two-way lead screw.It is fixed on the table to clamp motor, and output shaft and clamping screw rod
One end fix.Two oppositely oriented spiral sections on two V-type positioning clamping blocks and clamping screw rod respectively constitute screw pair.
Further, the traversing driving device includes measurement screw rod, measurement nut and measurement motor.The measurement
Screw rod is supported in fuselage.Measurement motor is fixed on fuselage, and one end of output shaft and measurement screw rod is fixed.It is solid to measure nut
It is scheduled on mounting blocks, and constitutes screw pair in measurement screw rod.
Further, the worktable lifting rotating mechanism includes lifting guide pillar, lifting platform, lifting driving assembly, rotation
Turn driving assembly and crane.The crane is fixed on fuselage.Lifting guide pillar is fixed on lifting platform.Lifting guide pillar with
Fuselage constitutes sliding pair.Going up and down driving assembly includes lifting nut, elevating screw and lifting motor.The elevating screw being vertically arranged
It is supported on crane.Lifting motor is on crane, and the bottom end of output shaft and elevating screw is fixed.It is fixed on lifting platform bottom
The lifting nut and elevating screw in portion constitute screw pair.Rotary drive assembly includes worm reducer and rotary drive motor.Snail
Wheel decelerator and rotary drive motor are each attached on the top of lifting platform.The delivery outlet and rotary drive motor of worm reducer
Output shaft fix.Worm reducer output is arranged upward vertically, and fixes with workbench.
Further, the two-stage stepped hole through measurement pole socket is offered on the measurement pole socket.On two-stage stepped hole
The biggish hole section in aperture is located between the lesser hole section in aperture and mounting blocks.The measuring rod is in three-level ladder shaft-like.Measurement
Bar top shaft part, bottom end shaft part diameter be respectively less than the diameter of intermediate shaft part.The top end shaft section of measuring rod is located at two pressure and passes
Between sensor.The jackshaft section of measuring rod is located on two-stage stepped hole in the biggish hole section in aperture.The bottom end shaft part of measuring rod is worn
Cross the lesser hole section in aperture on two-stage stepped hole.The outer end of the bottom end shaft part of the measuring rod is coated with wear-resistant material.
Further, the slit arrangement direction in the scale grating is parallel with the length direction of guide rail.
Further, the opposite flank of two V-type positioning clamping blocks offers V-type locating slot.
Further, the orientation of two pressure sensors and the length direction of guide rail are parallel.
The clearance measurement method that the bearing assembles clearance on-line measurement machine is specific as follows:
Step 1: between two V-type positioning clamping blocks that measured bearing is placed on workbench.Clamp driving assembly
It drives two V-type positioning clamping blocks to slide in opposition, clamps and be measured bearing.
Step 2: traversing driving device driving measuring rod is moved to the surface of measured brearing bore.
Step 3: the bottom end that worktable lifting rotating mechanism driving workbench rises to measuring rod, which is located at, is measured bearing
State in inner hole.I is assigned to by 1.
Step 4: traversing driving device driving measuring rod is mobile, until first pressure sensor detects preset pressure
Reach preset pressure.
Step 5: traversing driving device drives measuring rod mobile to the direction opposite with step 4, pressed until second
Force snesor detects that preset pressure reaches preset pressure.Grating reading head detects the displacement x of measuring rod in step 5i。
Step 6: calculating i-th of clearance ci=d+d'-xi.Wherein, d is the internal diameter for being measured bearing, and d' is measuring rod bottom
The diameter at end.Enter step seven.
Step 7: motor rotating forward is measured, so that measuring rod is not contacted with the inner ring of measured bearing if i < n.Work
Platform lifting rotation mechanism driving workbench rotate forward 90 °/(n-1), i is increased 1, and executes step 4 to six.Otherwise, enter
Step 8.
Step 8: calculating final clearance value
The invention has the advantages that:
1, the present invention holds device by design constant pressure measuring mechanism and work piece positioning, can solve and fills automatically in rolling bearing
On-line measurement problem with clearance in production line, only rolling bearing assembling quality does not provide evaluation data, and can be to bearing
Assembly technology makes adaptive adjustment, hence it is evident that improves bearing assembly precision and consistency.Therefore, there is significant economy, society
Meeting and environmental benefit.
2, constant pressure measuring mechanism of the invention in the detection, moves to left measuring rod 5, eliminates the left side of bearing internal external circle
Gap, and the zero point measured as clearance is put using this；Then measurement motor 11 inverts, and moves to right measuring rod 5, until eliminating bearing
The right side gap of Internal and external cycle subtracts measured bearing bore diameter, as clearance value by the shift value that grating measures measuring rod 5 at this time.
3, bottom end (contact jaw) surface of the measuring rod 5 in the present invention is coated with wear-resistant material, avoids contact with end abrasion；It surveys
The upper end of gauge rod 5 is embedded with pressure sensor 4, when reaching defined pressure value, is read by grating reading head 23.Accurate silk
The combination of thick stick pair of nut, constant pressure measurement pattern and high-precision grating improves the accuracy and consistency of measurement.
4, the clamping working table in the present invention is by the clamping driving clamping screw rod 13 of motor 14, since screw rod is forward and reverse collection
The two-way lead screw of an accepted way of doing sth, therefore two V-type positioning clamping blocks 12 are able to drive to center movement, so that workbench 15 will be placed to
On measured bearing 2 with one heart clamping on the table.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the schematic diagram (cross-sectional view of Section A-A in Fig. 1) of clamping working table in the present invention；
Fig. 3 is the schematic diagram (cross-sectional view of section B-B in Fig. 1) of traversing driving device in the present invention；
Fig. 4 is the combination diagram (section view in the section C-C in Fig. 1 of pressure detector in the present invention, traversing driving device
Figure)；
Fig. 5 is the schematic diagram (partial enlarged view of the part F in Fig. 1) of pressure detector in the present invention.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, a kind of bearing assembles clearance on-line measurement machine, including top plate 1, fuselage 8, worktable lifting whirler
Structure, clamping working table, constant pressure measuring mechanism and controller.Worktable lifting rotating mechanism include lifting guide pillar 17, lifting platform 18,
Go up and down driving assembly, rotary drive assembly 16 and crane 21.Crane 21 is fixed on fuselage 8.Four angles of lifting platform 18
It is respectively and fixedly provided with the lifting guide pillar 17 being vertically arranged.Four guide sleeves being fixed on fuselage 8 are respectively constituted with four lifting guide pillars 17
Sliding pair.Going up and down driving assembly includes lifting nut, elevating screw 19 and lifting motor 20.The elevating screw being vertically arranged 19
It holds on crane 21.Lifting motor is on crane 21, and the bottom end of output shaft and elevating screw 19 is fixed.It is fixed on lifting
The lifting nut and elevating screw 19 of 18 bottom of platform constitute screw pair.Rotary drive assembly 16 includes that worm reducer and rotation are driven
Dynamic motor.Worm reducer and rotary drive motor are each attached to the top of lifting platform 18.The delivery outlet of worm reducer and rotation
The output shaft for turning driving motor is fixed.The output shaft of worm reducer is arranged upward vertically.
As illustrated in fig. 1 and 2, clamping working table includes V-type positioning clamping block 12, clamping driving assembly and workbench 15.Work
The bottom and worm reducer output top for making platform 15 are fixed.Two V-type positioning clamping blocks 12 are constituted with workbench 15 and are slided
Dynamic pair.The opposite flank of two V-type positioning clamping blocks 12 offers V-type locating slot.Clamping driving assembly includes clamping screw rod 13
With clamping motor 14.Horizontally disposed clamping screw rod 13 is supported on workbench 15.It clamps screw rod 13 and uses two-way lead screw.Clamping
Motor 14 is fixed on workbench 15, and one end of output shaft and clamping screw rod 13 is fixed.Two V-type positioning clamping blocks 12 and folder
It holds two on screw rod 13 oppositely oriented spiral sections and respectively constitutes screw pair.When clamping the rotation of screw rod 13, two V-types positioning
Grip block 12 is towards or away from movement, to realize the clamp or release to measured bearing 2.
As shown in Fig. 1,3 and 4, constant pressure measuring mechanism include pressure detector, traversing driving device, mounting blocks 6, guide rail 7,
Measure sliding block 22, scale grating 24 and grating reading head 23.Top plate 1 is fixed on the top of fuselage 8.The bottom surface of guide rail 7 and top plate 1
It is fixed.It measures sliding block 22 and guide rail 7 constitutes sliding pair.Mounting blocks 6 are fixed on the bottom of measurement sliding block 22.Traversing driving device packet
Include measurement screw rod 9, screw rod bearing 10, measurement nut and measurement motor 11.The both ends for measuring screw rod 9 are supported by screw rod bearing 10
In fuselage 8.Measurement motor 11 is fixed on fuselage 8, and one end of output shaft and measurement screw rod 9 is fixed.Measurement nut is fixed
Screw pair is constituted on mounting blocks 6, and in measurement screw rod 9.Scale grating 24 is fixed on the side in fuselage 8.Scale grating 24
On slit arrangement direction it is parallel with the length direction of guide rail 7.Grating reading head 23 is fixed on mounting blocks 6, and towards scale
Grating 24 is arranged.
As shown in Fig. 1,4 and 5, pressure detector includes measurement pole socket 3, pressure sensor 4 and measuring rod 5.Measure pole socket 3
It is fixed on the bottom end of mounting blocks 6.The bottom surface of mounting blocks 6 offers pressure detecting slot.Interval setting is fixed in pressure detecting slot
Two pressure sensors 4.The detection faces of two pressure sensors 4 are oppositely arranged, and the orientation of two pressure sensors 4
(i.e. detection faces normal vector) is parallel with the length direction of guide rail 7.
The two-stage stepped hole through measurement pole socket 3 is offered on measurement pole socket 3.The biggish hole section in aperture on two-stage stepped hole
Between the lesser hole section in aperture and mounting blocks 6.Measuring rod 5 is in three-level ladder shaft-like.5 top shaft part of measuring rod, bottom end axis
The diameter of section is respectively less than the diameter of intermediate shaft part.The top end shaft section of measuring rod 5 is located between two pressure sensors 4, and with two
The detection faces of a pressure sensor 4 contact.The jackshaft section of measuring rod 5 is located at the biggish hole section in aperture on two-stage stepped hole
It is interior.The bottom end shaft part of measuring rod 5 passes through the lesser hole section in aperture on two-stage stepped hole.The outer end of the bottom end shaft part of measuring rod 5 applies
It is covered with wear-resistant material, to reduce abrasion.
The central axis of measuring rod 5 is located in the plane of symmetry of two positioning sides of V-type positioning clamping block 12 (i.e. when tested
The state that amount bearing 2 is overlapped by the central axis that after clamping, measuring rod 5 can be moved to the axis of measured bearing 2).V-type
Two positioning sides of positioning clamping block 12 are two sides of V-groove thereon.
Lifting motor 20, rotary drive motor, clamping motor and control input interface and controller four for measuring motor
A motor control interface is connected by motor driver respectively.The signal output interfaces of two pressure sensors 4 and controller
Two pressure signal input interfaces (analog-to-digital conversion end) are separately connected.The signal output interface of grating reading head 23 and controller
The connection of displacement signal input interface.Controller uses single-chip microcontroller or PLC.
The clearance measurement method that the bearing assembles clearance on-line measurement machine is specific as follows:
It is placed between two V-type positioning clamping blocks 12 on workbench 15 Step 1: being measured bearing 2.Clamp motor
14 main storys clamp measured bearing 2 on the table so that two V-type positioning clamping blocks 12 slide in opposition with one heart.Grating is read
It is matched with scale grating 24 for several 23, the moment detects the current location of measuring rod 5.
Step 2: measurement motor 11 rotates, driving measuring rod 5 is moved to the surface of measured 2 inner hole of bearing.
Step 3: lifting motor 20 rotates forward, so that the bottom end that workbench 15 rises to measuring rod 5 extend into measured bearing
State in 2 inner hole.I is assigned to by 1.
Step 4: measurement motor 11 rotates forward, so that measuring rod 5 is mobile, bottom end and measured bearing 2 until measuring rod 5
One side contacts of inner ring, and first pressure sensor 4 detects that preset pressure reaches preset pressure.At this point, being measured bearing 2
A side clearance be eliminated.
Step 5: measurement motor 11 inverts, so that measuring rod 5 is mobile to the direction opposite with step 4, until measurement
Another side contacts of inner ring of the bottom end of bar 5 and measured bearing 2, and second pressure sensor 4 detects that preset pressure reaches
Preset pressure.At this point, another side clearance for being measured bearing 2 is eliminated.Controller detects step by grating reading head 23
In five, the displacement x of measuring rod 5i。
Step 6: calculating i-th of clearance ci=d+d'-xi.Wherein, d is the internal diameter for being measured bearing, and d' is 5 bottom of measuring rod
The diameter at end.
Step 7: the rotating forward of motor 11 is measured, so that measuring rod 5 is not contacted with the inner ring of measured bearing 2 if i=1.
Rotary drive assembly 16 drives workbench to rotate 90 °, i is increased 1, and execute step 4 to six.Otherwise, eight are entered step.
Step 8: calculating final clearance value
Claims (10)
1. a kind of bearing assembles clearance on-line measurement machine, including fuselage, worktable lifting rotating mechanism, clamping working table and constant pressure
Measuring mechanism；It is characterized by: the clamping working table includes V-type positioning clamping block, clamping driving assembly and workbench；Work
Make platform to be mounted on fuselage by worktable lifting rotating mechanism；Two V-type positioning clamping blocks constitute sliding pair with workbench,
And it is driven by clamping driving assembly and carries out reverse sync movement；
The constant pressure measuring mechanism includes pressure detector, traversing driving device, mounting blocks, guide rail, measurement sliding block, scale light
Grid and grating reading head；The guide rail is fixed with fuselage；The measurement sliding block and guide rail constitutes sliding pair；The installation
Block is fixed on the bottom of measurement sliding block, and is driven by traversing driving device；The scale grating is fixed on the side in fuselage；
Grating reading head is fixed on mounting blocks, and is arranged towards scale grating；
The pressure detector includes pressure sensor and measuring rod；The bottom surface of mounting blocks offers pressure detecting slot；Pressure
Spaced two pressure sensors are fixed in detection slot；The detection faces of two pressure sensors are oppositely arranged；Measuring rod
Top be located between two pressure sensors, and contacted with the detection faces of two pressure sensors.
2. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: in the measuring rod
Mandrel line is located in the plane of symmetry of two positioning sides of V-type positioning clamping block.
3. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: the clamping driving
Component includes clamping screw rod and clamping motor；Horizontally disposed clamping screw rod bearing is on the table；Screw rod is clamped using two-way
Lead screw；It clamps motor to fix on the table, and one end of output shaft and clamping screw rod is fixed；Two V-type positioning clamping blocks with
Two oppositely oriented spiral sections on clamping screw rod respectively constitute screw pair.
4. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: the traversing driving
Mechanism includes measurement screw rod, measurement nut and measurement motor；The measurement screw rod is supported in fuselage；Measurement motor is fixed on
On fuselage, and one end of output shaft and measurement screw rod is fixed；Measurement nut is fixed on mounting blocks, and constitutes spiral shell in measurement screw rod
Rotation is secondary.
5. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: the workbench liter
Drop rotating mechanism includes lifting guide pillar, lifting platform, lifting driving assembly, rotary drive assembly and crane；The crane
It is fixed on fuselage；Lifting guide pillar is fixed on lifting platform；Lifting guide pillar and fuselage constitute sliding pair；Going up and down driving assembly includes
Lifting nut, elevating screw and lifting motor；The elevating screw being vertically arranged is supported on crane；Lifting motor is in crane
On, and the bottom end of output shaft and elevating screw is fixed；The lifting nut and elevating screw for being fixed on lifting platform bottom constitute spiral
It is secondary；Rotary drive assembly includes worm reducer and rotary drive motor；Worm reducer and rotary drive motor are each attached to
On the top of lifting platform；The delivery outlet of worm reducer and the output shaft of rotary drive motor are fixed；Worm reducer output
It is arranged upward vertically, and is fixed with workbench.
6. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: the measurement pole socket
On offer through measurement pole socket two-stage stepped hole；The biggish hole section in aperture is located at the lesser hole section in aperture on two-stage stepped hole
Between mounting blocks；The measuring rod is in three-level ladder shaft-like；Measuring rod top shaft part, bottom end shaft part diameter be respectively less than in
Between shaft part diameter；The top end shaft section of measuring rod is located between two pressure sensors；The jackshaft section of measuring rod is located at two-stage
On stepped hole in the biggish hole section in aperture；The bottom end shaft part of measuring rod passes through the lesser hole section in aperture on two-stage stepped hole；It is described
The outer end of the bottom end shaft part of measuring rod is coated with wear-resistant material.
7. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: in the scale grating
Slit arrangement direction it is parallel with the length direction of guide rail.
8. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: two V-type locating clips
The opposite flank for holding block offers V-type locating slot.
9. a kind of bearing according to claim 1 assembles clearance on-line measurement machine, it is characterised in that: two pressure sensors
Orientation it is parallel with the length direction of guide rail.
10. a kind of clearance measurement method of bearing assembly clearance on-line measurement machine as claimed in claim 2, it is characterised in that:
Step 1: between two V-type positioning clamping blocks that measured bearing is placed on workbench；Clamp driving assembly driving
Two V-type positioning clamping blocks slide in opposition, and clamp and are measured bearing；
Step 2: traversing driving device driving measuring rod is moved to the surface of measured brearing bore；
Step 3: the bottom end that worktable lifting rotating mechanism driving workbench rises to measuring rod is located at the inner hole for being measured bearing
In state；I is assigned to by 1；
Step 4: traversing driving device driving measuring rod is mobile, until first pressure sensor detects that preset pressure reaches
Preset pressure；
Step 5: traversing driving device drives measuring rod mobile to the direction opposite with step 4, until second pressure passes
Sensor detects that preset pressure reaches preset pressure；Grating reading head detects the displacement x of measuring rod in step 5i；
Step 6: calculating i-th of clearance ci=d+d'-xi；Wherein, d is the internal diameter for being measured bearing, and d' is measuring rod bottom end
Diameter；Enter step seven；
Step 7: motor rotating forward is measured, so that measuring rod is not contacted with the inner ring of measured bearing if i < n；Workbench liter
Drop rotating mechanism driving workbench rotate forward 90 °/(n-1), i is increased 1, and executes step 4 to six；Otherwise, it enters step
Eight；
Step 8: calculating final clearance value
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| CN201910398588.3A CN110160454B (en) | 2019-05-14 | 2019-05-14 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
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| CN201910398588.3A CN110160454B (en) | 2019-05-14 | 2019-05-14 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
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| CN110160454B CN110160454B (en) | 2020-09-22 |
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Cited By (5)
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| CN110631493A (en) * | 2019-09-05 | 2019-12-31 | 江苏理工学院 | Detection device and detection method for mechanical clearance of bearing |
| CN112743516A (en) * | 2020-12-18 | 2021-05-04 | 中煤科工集团西安研究院有限公司 | Truss type feeding and discharging system and method suitable for multi-specification mining drill bits |
| CN114279389A (en) * | 2021-12-28 | 2022-04-05 | 株洲铭山科技股份有限公司 | Detection equipment for motor bearing clearance |
| 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 |
| CN117824466B (en) * | 2024-03-01 | 2024-04-26 | 北京宗合铁路轴承有限公司 | Railway bearing clearance detection device and detection method |
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| 林利茹: "三排圆柱滚子转盘轴承径向游隙测量", 《轴承》 * |
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| CN110631493A (en) * | 2019-09-05 | 2019-12-31 | 江苏理工学院 | Detection device and detection method for mechanical clearance of bearing |
| CN112743516A (en) * | 2020-12-18 | 2021-05-04 | 中煤科工集团西安研究院有限公司 | Truss type feeding and discharging system and method suitable for multi-specification mining drill bits |
| CN112743516B (en) * | 2020-12-18 | 2022-05-17 | 中煤科工集团西安研究院有限公司 | Truss type feeding and discharging system and method suitable for multi-specification mining drill bits |
| CN114279389A (en) * | 2021-12-28 | 2022-04-05 | 株洲铭山科技股份有限公司 | Detection equipment for motor bearing clearance |
| 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 |
| CN117824466B (en) * | 2024-03-01 | 2024-04-26 | 北京宗合铁路轴承有限公司 | Railway bearing clearance detection device and detection method |
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