CN108412900A - Bearing and its method for dismounting - Google Patents
Bearing and its method for dismounting Download PDFInfo
- Publication number
- CN108412900A CN108412900A CN201810358561.7A CN201810358561A CN108412900A CN 108412900 A CN108412900 A CN 108412900A CN 201810358561 A CN201810358561 A CN 201810358561A CN 108412900 A CN108412900 A CN 108412900A
- Authority
- CN
- China
- Prior art keywords
- trepanning
- bearing
- cavity
- piston
- working media
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses bearing and its method for dismounting.Pass through the working media inlet A (1b) and working media inlet B (4b) and trepanning A (1c), trepanning B (4c), piston (5), the fixinig plate A (8) being connect with piston (5), fixinig plate B (6) and elastomer (7) that cavity A (1a) and cavity B (4a) is respectively set on outer ring (1) and inner ring (4), communicates with respective chamber.Pressure by changing fluid working medium so that fixinig plate A (8) holds out against or loosen bearing mounting hole hole wall, axis is held or loosened to fixinig plate (6) tightly, to be conveniently accomplished the fixation and dismounting of bearing, simultaneously after using the higher working media of specific heat, the heat generated when more bearing workings can also be absorbed, to make bearing preferably be cooled down.
Description
Technical field
The present invention relates to field of bearings, more particularly to bearing and its method for dismounting.
Background technology
Rolling bearing has application more as standard component in the bearing of various rotatable parts.But when current bearing installation by
It is interference fit in bearing inner race and axis, is to be installed by way of tapping or being pressed into forcing press under normal circumstances, also has
Its inner ring swell is set then to be inserted on axis again bearing heating.The handling of bearing are all very inconvenient in a word.
Invention content
In order to overcome drawbacks described above and the insufficient present invention to provide following technical scheme:A kind of bearing easy to use, it is described
Bearing includes outer ring, rolling element, retainer, inner ring, and the outer ring is internally provided with a cavity A, the cycle surface be equipped with
The working media inlet A that the cavity A is connected, the working media inlet A can be closed, outermost on the outer ring
Side wall is equipped with trepanning A, and the trepanning A is communicated with the cavity A, described equipped with matched piston in the trepanning A
Piston connects a fixinig plate A, and the inner ring is internally provided with a cavity B, and the inner ring end face is equipped with to be connected with the cavity B
Working media inlet B, the working media inlet B can close, be equipped with and open closest to the side wall of axis on the inner ring
Hole B, the trepanning B is identical as the trepanning A sizes, and the trepanning B is communicated with the cavity B, be equipped in the trepanning B and its
The piston to match, the piston are flexibly connected a fixinig plate B.
When installation, first by bearing holder (housing, cover) on axis so that be not arranged on bearing inner race the top surface of working media inlet with
Shaft shoulder face overlaps.Then the working media for injecting high pressure into cavity B by the working media inlet B, since work is situated between
The pressure of matter ejects piston 5, and fixinig plate B holds axis tightly so that bearing is fixed on axis, finally seals working media inlet B
It closes, then injects the working media of high pressure into cavity A by the working media inlet A, since the pressure of working media will
Piston 5 ejects, and fixinig plate A is held out against on the hole wall of bearing mounting hole, to make bearing be fixed on bearing block.It, will when dismounting
Working media inlet B is opened, and the high-pressure working medium in cavity B is extracted out so that cavity pressure is released, piston driving is solid
Stator B loosens axis, will then open working media inlet A, and the high-pressure working medium in cavity A is extracted out so that intracavitary pressure
Power is released, and piston driving fixinig plate A loosens the hole wall of bearing mounting hole, so as to easily unload bearing.
Preferably, on the outer ring outermost side wall be equipped with it is several to cavity A boss A outstanding, it is described
Boss A is equipped with the side wall of trepanning A, the trepanning A through the boss A and its place, and is communicated with the cavity A, described
On inner ring trepanning B, institute are equipped with to cavity B boss B outstanding, the boss B closest to the side wall of axis equipped with several
Side walls of the trepanning B through the boss B and its place is stated, and is communicated with the cavity B.
Preferably, the piston is equipped with a piston rod, an elastomer sleeve is located on the piston rod, the trepanning A
It is inside provided with and closes the trepanning A just with its match sprue A, the sprue A, the sprue A is described equipped with through-hole A
Piston rod is pierced by the connection fixinig plate A from the through-hole A, and piston rod is connected on one end of the elastomer and the piston
End face contact, the other end withstands on the sprue A, is provided in the trepanning B proper with its match sprue B, the sprue B
The trepanning B is closed well, and the sprue B is equipped with through-hole B, and the piston rod is pierced by from the through-hole B described in flexible connection
Fixinig plate B, one end of the elastomer are contacted with the end face for connecting piston rod on the piston, and the other end withstands on the sprue B
On.
Preferably, the end that the piston rod of the piston is arranged on the outer ring is equipped with bulb A, it is described swollen
Big portion A is internally provided with a spherically-shaped cavity, and the hole is equipped on the lower face of the bulb A and is open, on the fixinig plate A
It is fixedly connected with a spherical bulb B ' with top of the immediate surface in the outer ring equipped with protruding portion A, the protruding portion A,
The diameter of the bulb B ' is not more than the diameter in the hole, and the diameter of bulb B ' is more than the lower faces the bulb A
On opening on point-to-point transmission maximum distance, in the embedded hole the bulb B ', the protruding portion A be inserted into described in expand
In opening on the portion lower faces A, and can be freely movable, it is equipped with and protrudes closest to the surface of the inner ring on the fixinig plate B
The diameter that the top of portion B, the protruding portion B are fixedly connected with spherical bulb a B ", the bulb B " is not more than the hole
Diameter, and the diameter of bulb B " be more than the lower faces the bulb A on opening on point-to-point transmission maximum distance, it is described swollen
In the big embedded holes portion B ", the protruding portion B is inserted into the opening on the lower faces the bulb A, and can freely activity.
Preferably, the elastomer can be one of spring or rubber block.
Preferably, the shape of the fixinig plate A and the fixinig plate B on the radial section of bearing is sector, institute
The end face for the outer ring that working media inlet A is not protruded where it is stated, the working media inlet B is not protruded where it
The inner ring end face.
Compared with prior art, the invention has the advantages that:By the way that cavity A is respectively set on outer ring and inner ring
With cavity B, the working media inlet A communicated with respective chamber and working media inlet B and trepanning A, trepanning B, piston, with
Fixinig plate A, fixinig plate B and the elastomer of piston connection.By change fluid working medium pressure make fixinig plate A hold out against or
Loosen bearing mounting hole hole wall, fixinig plate holding or loosen axis, to be conveniently accomplished the fixation and dismounting of bearing, while adopting
After the higher working media of specific heat, moreover it is possible to the heat generated when more bearing workings is absorbed, to make bearing obtain more preferably
Cooling.
Description of the drawings
Fig. 1 is the front view when bearing in embodiment of the present invention is mounted on an axle.
Fig. 2 is the front view when bearing in embodiment of the present invention is not installed on axis.
Fig. 3 is to face full sectional view when the bearing in embodiment of the present invention is not installed on axis.
Fig. 4 is the portions A enlarged drawing.
Fig. 5 is the portions B enlarged drawing.
Fig. 6 is that piston faces full sectional view in the bearing in embodiment of the present invention.
Fig. 7 is that fixinig plate B faces full sectional view in the bearing in embodiment of the present invention.
Fig. 8 is that fixinig plate A faces full sectional view in the bearing in embodiment of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings, it elaborates to the specific implementation mode of the present invention.A kind of bearing easy to use, it is described
Bearing includes outer ring 1, rolling element 2, retainer 3, inner ring 4, and the outer ring 1 is internally provided with a cavity A1a, 1 end face of the outer ring
It is equipped with the working media inlet A1b being connected with the cavity A1a, the working media inlet A1b can be closed, and institute
State the end face for the outer ring 1 that working media inlet A1b is not protruded where it, the outer ring(1)On upper outermost side wall
Equipped with trepanning A(1c), the trepanning A(1c)With the cavity A(1a)It communicates, the trepanning A(1c)Interior be equipped with matches with it
Piston(5), the piston(5)Connect a fixinig plate A(8), set that there are six to described on the outer ring 1 on outermost side wall
Cavity A1a boss A1d outstanding, the boss A1d be equipped with trepanning A1c, the trepanning A1c through the boss A1d and its
The side wall at place, and communicated with the cavity A1a, matched piston 5, the piston 5 are equipped in each trepanning A1c
It is equipped with a piston rod 5a, a spring 7 is set on the piston rod 5a, is also threaded in each trepanning A1c and its phase
Matched sprue A1e, the sprue A1e close the trepanning A1c just, and the sprue A1e is equipped with through-hole A, the piston
Bar 5a is pierced by from the through-hole A, and one end of the spring 7 is contacted with the end face for connecting piston rod 5a on the piston 5, another
End is withstood on the sprue A1e, and the end of the piston rod 5a is internally provided with a ball equipped with bulb A5b, the bulb A5b
Shape hole 5c, the hole 5c are equipped on the lower face of the bulb A5b and are open, on the fixinig plate A8 and outer ring
Top of the 1 immediate surface equipped with protruding portion A8a, the protruding portion A8a is fixedly connected with spherical shape bulb B ' 8c, described
The diameter of bulb B ' 8c is not more than the diameter of the hole 5c, and the diameter of bulb B ' 8c is more than under the bulb A5b
The maximum distance of point-to-point transmission in opening on end face, the bulb B ' 8c are embedded in the hole 5c, and the protruding portion A8a is inserted
Enter in the opening on the lower faces the bulb A5b, and can be freely movable,
The inner ring 4 is internally provided with a cavity B4a, and 4 end face of the inner ring is equipped with the work being connected with the cavity B4a and is situated between
Where matter inlet B4b, the working media inlet B4b can be closed, and the working media inlet B4b does not protrude it
The end face of the inner ring 4, closest to setting on the side wall of fixing axle, there are six outstanding convex to the cavity B4a on the inner ring 4
The side wall of trepanning B4c, the trepanning B4c through the boss B4d and its place is equipped on platform B4d, each boss B4d, and
It is communicated with the cavity B4a, matched piston 5 is equipped in each trepanning B4c, piston is provided on the piston 5
Bar 5a, a spring 7 are sheathed on the piston rod 5a, be also threaded in each trepanning B4c with its sprue B4e that matches,
The sprue B4e closes the trepanning B4c just, and the sprue B4e is equipped with through-hole B, the piston rod 5a from the through-hole B
In be pierced by, one end of the spring 7 is contacted with the end face for connecting piston rod 5a on the piston 5, and the other end withstands on the sprue
On B4e, the end of the piston rod 5a is equipped with bulb A5b, and the bulb A5b is internally provided with a spherically-shaped cavity 5c, described
Hole 5c is equipped with opening on the lower face of the bulb A5b, and for holding axis tightly, the fixinig plate B6's six fixinig plate B6 exists
Shape on the radial section of bearing is sector, and the fixinig plate B6 is equipped with protruding portion B6a, the top of the protruding portion B6a
The diameter for being fixedly connected with spherical shape bulb B " 6b, the bulb B " 6b is not more than the diameter of the hole 5c, and bulb
The diameter of B " 6b is more than the maximum distance of point-to-point transmission in the opening on the lower faces the bulb A5b, and the bulb B " 6b are embedding
Enter in the hole 5c, the protruding portion B6a is inserted into the opening on the lower faces the bulb A5b, and can freely activity.
When installation, first by bearing holder (housing, cover) on axis, since the effect of spring 7 makes piston 5 be received in the trepanning A1c and institute
It states in trepanning B4c, therefore bearing can be very easily sleeved on axis so that working media inlet 4b is not set on bearing inner race 4
Top surface overlapped with shaft shoulder face.Then the hydraulic oil of high pressure is injected into cavity B4a by the working media inlet B4b,
Since the pressure of hydraulic oil ejects piston 5, spring 7 is compressed, and six fixinig plates 6 hold axis tightly so that and bearing is fixed on axis,
Then working media inlet 4b is closed, high pressure is then injected into cavity A1a by the working media inlet A1b
Hydraulic oil, since the pressure of hydraulic oil ejects piston 5, spring 7 is compressed, and six fixinig plate A are held out against in bearing mounting hole
On hole wall, to make bearing be fixed on bearing block.When dismounting, working media inlet B4b is opened, it will be in cavity B4a
High pressure liquid pressure oil is extracted out so that cavity pressure is released, and piston 5 is withdrawn under the action of spring 7 in trepanning B4c, drives fixinig plate
B6 loosens axis, then opens working media inlet A1b, and the high pressure liquid pressure oil in cavity A1a is extracted out so that cavity pressure
It is released, piston 5 is withdrawn under the action of spring 7 in trepanning A1c, and fixinig plate A8 is driven to loosen bearing mounting hole hole wall, to
Easily bearing can be unloaded.
Compared with prior art, the invention has the advantages that:By the way that chamber is respectively set on outer ring 1 and inner ring 4
Body A1a and cavity B4a, the working media inlet A1b communicated with respective chamber and working media inlet B4b and trepanning A1c,
Trepanning B4c, piston 5, the fixinig plate A8 being connect with piston 5, fixinig plate B6 and elastomer 7.By changing fluid working medium
Pressure so that fixinig plate A8 holds out against or loosen bearing mounting hole hole wall, fixinig plate 6 is held tightly or loosens axis, to be conveniently accomplished axis
The fixation and dismounting held, while using after the higher working media of specific heat, moreover it is possible to absorb and be generated when more bearing workings
Heat, to make bearing preferably be cooled down.
Above to the present invention have been described in detail, but the invention is not limited in specific embodiment parties described herein
Formula.It will be appreciated by those skilled in the art that in the case without departing from the scope of the present invention, other changes and deformation can be made.For example,
The elastomer 7 can also be that rubber block, protection scope of the present invention are defined by the following claims.
Claims (1)
1. a kind of method for dismounting of bearing easy to use, the bearing includes outer ring(1), rolling element(2), retainer(3), it is interior
Circle(4), which is characterized in that the outer ring(1)It is internally provided with a cavity A(1a), the outer ring(1)End face is equipped with and the chamber
Body A(1a)The working media inlet A being connected(1b), the working media inlet A(1b)It can close, the outer ring(1)
Upper outermost side wall is equipped with trepanning A(1c), the trepanning A(1c)With the cavity A(1a)It communicates, the trepanning A(1c)
It is interior to be equipped with matched piston(5), the piston(5)Connect a fixinig plate A(8), the inner ring(4)It is internally provided with a chamber
Body B(4a), the inner ring(4)End face is equipped with and the cavity B(4a)The working media inlet B being connected(4b), described
Working media inlet B(4b)It can close, the inner ring(4)On closest to axis side wall be equipped with trepanning B(4c), the trepanning
B(4c)With the trepanning A(1c)Size is identical, the trepanning B(4c)With the cavity B(4a)It communicates, the trepanning B(4c)It is interior
Equipped with matched piston(5), the piston(5)It is flexibly connected a fixinig plate B(6);
The method for dismounting, including:When dismounting, working media inlet B is opened, by the high-pressure working medium in cavity B
So that cavity pressure is released, piston driving fixinig plate B loosens axis, will then open working media inlet A, by chamber for extraction
High-pressure working medium in body A is extracted out so that cavity pressure is released, and piston driving fixinig plate A loosens the hole of bearing mounting hole
Wall, to unload bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810358561.7A CN108412900A (en) | 2015-12-28 | 2015-12-28 | Bearing and its method for dismounting |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810358561.7A CN108412900A (en) | 2015-12-28 | 2015-12-28 | Bearing and its method for dismounting |
CN201510993411.XA CN105422634B (en) | 2015-12-28 | 2015-12-28 | A kind of bearing easy to use |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510993411.XA Division CN105422634B (en) | 2015-12-28 | 2015-12-28 | A kind of bearing easy to use |
Publications (1)
Publication Number | Publication Date |
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CN108412900A true CN108412900A (en) | 2018-08-17 |
Family
ID=55501087
Family Applications (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810358948.2A Withdrawn CN108518412A (en) | 2015-12-28 | 2015-12-28 | Facilitate fixed and dismounting bearing |
CN201810358547.7A Withdrawn CN108561427A (en) | 2015-12-28 | 2015-12-28 | A kind of bearing |
CN201810358577.8A Withdrawn CN108561438A (en) | 2015-12-28 | 2015-12-28 | Bearing and its installation method |
CN201810358561.7A Withdrawn CN108412900A (en) | 2015-12-28 | 2015-12-28 | Bearing and its method for dismounting |
CN201810358550.9A Withdrawn CN108488234A (en) | 2015-12-28 | 2015-12-28 | A kind of bearing and its installation, method for dismounting |
CN201810358947.8A Withdrawn CN108488235A (en) | 2015-12-28 | 2015-12-28 | Dismounting, bearing easy for installation |
CN201510993411.XA Active CN105422634B (en) | 2015-12-28 | 2015-12-28 | A kind of bearing easy to use |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810358948.2A Withdrawn CN108518412A (en) | 2015-12-28 | 2015-12-28 | Facilitate fixed and dismounting bearing |
CN201810358547.7A Withdrawn CN108561427A (en) | 2015-12-28 | 2015-12-28 | A kind of bearing |
CN201810358577.8A Withdrawn CN108561438A (en) | 2015-12-28 | 2015-12-28 | Bearing and its installation method |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810358550.9A Withdrawn CN108488234A (en) | 2015-12-28 | 2015-12-28 | A kind of bearing and its installation, method for dismounting |
CN201810358947.8A Withdrawn CN108488235A (en) | 2015-12-28 | 2015-12-28 | Dismounting, bearing easy for installation |
CN201510993411.XA Active CN105422634B (en) | 2015-12-28 | 2015-12-28 | A kind of bearing easy to use |
Country Status (1)
Country | Link |
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CN (7) | CN108518412A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109604933A (en) * | 2018-12-26 | 2019-04-12 | 束院生 | A kind of bearing dismantling recyclable device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107314068B (en) * | 2016-04-27 | 2020-09-22 | 台达电子工业股份有限公司 | Brake pad assembly |
CN108561431B (en) * | 2018-05-21 | 2023-09-22 | 盐城市三川轴承制造有限公司 | Elastic composite cylindrical roller bearing |
CN109281939B (en) * | 2018-08-16 | 2020-07-31 | 东台友铭船舶配件有限公司 | Adjustable marine bearing |
CN112065867A (en) * | 2020-09-15 | 2020-12-11 | 温州职业技术学院 | Automatic assembling device for inner ring and outer ring of high-speed bearing |
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FR2671499B3 (en) * | 1991-01-16 | 1992-12-31 | Sollac | DEVICE FOR EXTRACTING A HOLLOW MEMBER INSERTED IN A HOUSING. |
CN1067298A (en) * | 1991-05-28 | 1992-12-23 | 李恩鸿 | The manufacture method that wheel bearing liner supports |
US5429376A (en) * | 1994-03-01 | 1995-07-04 | General Manufacturing Systems, Inc. | Fluid-operated collet chuck with centering fingers |
JP2003083498A (en) * | 2001-09-10 | 2003-03-19 | Nsk Ltd | Grease supply device |
EP1350972A3 (en) * | 2002-04-04 | 2004-06-23 | Dana Corporation | Cardan shaft center bearing assembly including a support member containing a rheological fluid |
GB2402445B (en) * | 2003-05-19 | 2005-05-11 | Minebea Co Ltd | A controllable expansion system |
US7476034B2 (en) * | 2003-08-28 | 2009-01-13 | Boston Scientific Scimed, Inc. | Dynamic bushing for medical device tubing |
CN201333631Y (en) * | 2009-01-20 | 2009-10-28 | 宁波优耐特模具有限公司 | Hydraulic auxiliary support |
CN202200009U (en) * | 2011-06-11 | 2012-04-25 | 武钢集团昆明钢铁股份有限公司 | Dismounting device with multiple oil cylinders for roller bearing block |
CN202992579U (en) * | 2012-12-14 | 2013-06-12 | 由田新技股份有限公司 | Bearing device |
FR3007807B1 (en) * | 2013-06-28 | 2015-07-17 | Skf Ab | BEARING BEARING, ESPECIALLY FOR STEERING COLUMN, AND METHOD OF MANUFACTURING THE SAME |
CN104295322B (en) * | 2014-10-13 | 2016-08-24 | 太原理工大学 | A kind of air motor using screw rod transmission |
CN104500263B (en) * | 2014-11-18 | 2016-01-20 | 西安交通大学 | A kind of multilayer pentagon formula Stirling engine for waste incineration waste heat recovery |
CN204308901U (en) * | 2014-12-04 | 2015-05-06 | 武钢集团昆明钢铁股份有限公司 | A kind of bearing uninstall device of easy disassembly |
-
2015
- 2015-12-28 CN CN201810358948.2A patent/CN108518412A/en not_active Withdrawn
- 2015-12-28 CN CN201810358547.7A patent/CN108561427A/en not_active Withdrawn
- 2015-12-28 CN CN201810358577.8A patent/CN108561438A/en not_active Withdrawn
- 2015-12-28 CN CN201810358561.7A patent/CN108412900A/en not_active Withdrawn
- 2015-12-28 CN CN201810358550.9A patent/CN108488234A/en not_active Withdrawn
- 2015-12-28 CN CN201810358947.8A patent/CN108488235A/en not_active Withdrawn
- 2015-12-28 CN CN201510993411.XA patent/CN105422634B/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109604933A (en) * | 2018-12-26 | 2019-04-12 | 束院生 | A kind of bearing dismantling recyclable device |
CN109604933B (en) * | 2018-12-26 | 2020-11-06 | 海安玻克超硬材料有限公司 | Bearing disassembling and recycling device |
Also Published As
Publication number | Publication date |
---|---|
CN105422634A (en) | 2016-03-23 |
CN108561427A (en) | 2018-09-21 |
CN108561438A (en) | 2018-09-21 |
CN105422634B (en) | 2018-12-14 |
CN108518412A (en) | 2018-09-11 |
CN108488234A (en) | 2018-09-04 |
CN108488235A (en) | 2018-09-04 |
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Application publication date: 20180817 |