CN108361287B - Lengthened tapered roller bearing - Google Patents
Lengthened tapered roller bearing Download PDFInfo
- Publication number
- CN108361287B CN108361287B CN201810371671.7A CN201810371671A CN108361287B CN 108361287 B CN108361287 B CN 108361287B CN 201810371671 A CN201810371671 A CN 201810371671A CN 108361287 B CN108361287 B CN 108361287B
- Authority
- CN
- China
- Prior art keywords
- bearing
- ring
- bearing seat
- roller
- positioning ring
- 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.)
- Active
Links
Images
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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention provides an elongated tapered roller bearing, wherein the bearing is sleeved on a roller shaft, a positioning ring is arranged at the contact position of the bearing and the roller shaft shoulder, the shape of the inner ring of the positioning ring is matched with the shape of the roller shaft shoulder, and the positioning ring is in sealing connection with the bearing. The invention improves the space structure in the rolling mill shell, lengthens the axial length of the bearing, greatly improves the service life of the bearing, disperses the radial shearing force of the rolling shaft and protects the shaft shoulder of the rolling shaft from breaking.
Description
Technical Field
The invention belongs to the field of machinery, and particularly relates to an elongated tapered roller bearing.
Background
The rolling mill of the steel mill is several meters high, countless steel plates are continuously rolled every day, and the radial force and the axial force of the rolling mill are very large, so that the problem of fracture at the shaft shoulder of the roller is often caused, the loss caused by replacing the shaft of the rolling mill once is very large, and the steel mill is entrusted with no good solution everywhere. If the roll shaft is thickened, the positions of the parts such as the bearing, the seal lubrication and the like are not arranged. The position of the bearing in the rolling mill is very limited, and the bearing connecting device, the rolling mill sealing cover device, the sealing ring, the isolation pad and the oiling device which are connected with the bearing occupy a very large position of the rolling mill shaft, so that the structure is compact, the improvement is not easy, the working efficiency of the rolling mill is very high, and no intermittent time exists, but when the rolling mill shaft breaks and needs to be replaced, the rolling mill needs to stop working, so that very large loss is caused to a steel mill, and the technical upgrading and transformation are very needed.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an lengthened tapered roller bearing, the bearing at the shaft shoulder is subjected to the traditional improvement, a bearing seat, a sealing cover, a sealing ring and a spacer on a roller main shaft are removed, all structures and spaces of the parts are given to the bearing design, in the lengthened bearing, the two ends of the bearing are changed into collar sealing device structures, the circular arc at the joint of the roller shaft neck shoulder is enlarged and is connected with the inner ring of the large circular arc, and the bearing bears most of shearing force, which is equivalent to the thickening of a roller, so that the problems of breakage of the roller shaft and easy damage of the bearing are solved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the lengthened tapered roller bearing is sleeved on the roller shaft, a positioning ring is arranged at the contact position of the bearing and the roller shaft shoulder, the shape of the inner ring of the positioning ring is matched with the shape of the roller shaft shoulder, and the positioning ring is in sealing connection with the bearing.
Further, the lengthened tapered roller bearing also comprises a bearing seat, the bearing seat is sleeved on the outer side of the bearing and the positioning ring, one end of the bearing seat is connected with the positioning ring, and the other end of the bearing seat is connected with the half coupling on the roller shaft.
Further, the positioning ring is contacted with a large arc at the shaft shoulder of the roller, the radian of the large arc is increased by 3-5 times compared with that of a normal standard, and the shape of the inner ring of the positioning ring is matched with the shape of the radian at the shaft shoulder of the roller.
Further, the outer ring of the positioning ring is provided with an annular positioning bulge, the bearing seat is provided with a groove matched with the annular positioning bulge, and the positioning ring is connected with the bearing seat through the annular positioning bulge and the groove.
Further, a first pressing plate is arranged between the positioning ring and the bearing seat, the first pressing plate is arranged below the groove of the bearing seat, the first pressing plate is connected with the bearing seat through a bolt, and a first spacing ring is arranged on one side, close to the bearing, of the first pressing plate.
Further, the bearing seat is connected with the half coupling through the transparent cover, the transparent cover is sleeved on the half coupling and tightly pressed on the bearing seat, the outer side of the transparent cover is fixedly connected with the bearing seat through a bolt, the inner side of the transparent cover is in sealing connection with the half coupling through a second spacing ring, a second pressing plate is arranged at one end, far away from the bearing seat, of the transparent cover, and the second pressing plate is connected with the transparent cover through the bolt.
Further, a compression ring is arranged between the transparent cover and the bearing, and the compression ring is arranged below the bearing seat.
Further, an oil duct is arranged in the bearing seat, a first branch of the oil duct is connected to the bearing, and a second branch of the oil duct is connected to the sealing position of the bearing seat and the positioning ring.
Further, the bearing seat is a ball bearing seat, and the outer diameter of the bearing seat is an arc surface.
Further, the bearing comprises an inner ring, an outer ring, a retainer and rollers, wherein the retainer is arranged between the inner ring and the outer ring, the rollers are arranged in pockets of the retainer, the rollers are arranged in two rows, and the lengths of the rollers in the two rows are unequal.
Further, the length ratio of the long roller to the short roller in the two rows of rollers is 7:3.
further, the outer diameter of the outer ring of the lengthened conical bearing is arc-shaped and is matched with the bearing seat.
The beneficial effects of the invention are as follows: the invention improves the space structure in the rolling mill shell, lengthens the axial length of the bearing, greatly improves the service life of the bearing, disperses the radial shearing force of the rolling shaft and protects the shaft shoulder of the rolling shaft from breaking.
Drawings
Figure 1 is an assembly view of the roll axis of a rolling mill,
figure 2 is a schematic structural diagram of embodiment 1,
figure 3 is a schematic view of the structure of the ball bearing seat,
figure 4 is a schematic structural diagram of embodiment 2,
in the figure: 1. the device comprises a bearing, 2, a roller shaft, 3, a roller shaft shoulder, 4, a positioning ring, 5, a ball bearing seat, 6, a half coupling, 7, an annular positioning protrusion, 8, a first pressing plate, 9, a first spacing ring, 10, a transparent cover, 11, a second spacing ring, 12, a second pressing plate, 13, a pressing ring, 14, an oil duct, 15, a quick connector, 16, a stop block, 17, a groove, 18, a long roller, 19, a short roller, 20, a first outer ring, 21, a second outer ring, 22 and an inner ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention clearer, the present invention will be explained with reference to fig. 1.
Example 1
The lengthened tapered roller bearing is characterized in that the bearing 1 is sleeved on the roller shaft 2, a positioning ring 4 is arranged at the contact position of the bearing 1 and the roller shaft shoulder 3, the shape of the inner ring of the positioning ring 4 is matched with the shape of the roller shaft shoulder 3, and the positioning ring 4 is in sealing connection with the bearing 1. The bearing housing is established in the outside of bearing 1 and holding ring 4, and bearing frame one end links to each other with holding ring 4, and the other end links to each other with epaxial half shaft coupling 6 of roll, the bearing frame preferably uses ball bearing frame 5, and the bearing frame external diameter is the cambered surface, and ball bearing frame 5 external diameter cambered surface can play effective dispersion radial shear force, provides the function of protection for roll axle 2, and ball bearing frame 5's axial length is greater than bearing 1's axial length, and ball bearing housing establishes on the bearing and with bearing fixed connection, plays the effect of protection bearing intensity.
The positioning ring 4 is contacted with a large arc at the position of the roller shaft shoulder 3, the radian of the large arc is 3-5 times larger than that of a normal standard, and the shape of the inner ring of the positioning ring 4 is matched with the shape of the radian at the position of the roller shaft shoulder 3.
Further, an annular positioning bulge 7 is arranged on the outer ring of the positioning ring 4, a groove 17 matched with the annular positioning bulge 7 is arranged on the ball bearing seat, and the positioning ring 4 is connected with the ball bearing seat 5 through the annular positioning bulge 7 and the groove 17. A first pressing plate 8 is arranged between the positioning ring 4 and the ball bearing seat 5, the first pressing plate 8 is arranged below the ball bearing seat groove 17, the first pressing plate 8 is connected with the ball bearing seat 5 through bolts, a first spacing ring 9 is arranged on one side, close to the bearing 1, of the first pressing plate 8, and an oil seal is arranged in the first spacing ring 9 to play a sealing role.
Further, the ball bearing seat 5 is connected with the half coupling 6 through the through cover 10, the through cover 10 is sleeved on the half coupling 6 and is tightly pressed on the ball bearing seat 5, the outer side of the through cover 10 is fixedly connected with the ball bearing seat 5 through bolts, the inner side of the through cover 10 is in sealing connection with the half coupling 6 through the second spacing ring 11, an oil seal is arranged in the second spacing ring 11 to play a sealing role, a second pressing plate 12 is arranged at one end, far away from the ball bearing seat 5, of the through cover 10, and the second pressing plate 12 is connected with the through cover 10 through bolts. A compression ring 13 is arranged between the transparent cover 10 and the bearing 1, and the compression ring 13 is arranged below the ball bearing seat 5.
Further, an oil duct 14 is arranged in the ball bearing seat 5, a first branch of the oil duct is connected to the bearing 1, and a second branch of the oil duct is connected to a sealing position between the ball bearing seat 5 and the positioning ring 4. The oil filling port of the oil duct is arranged at one end of the ball bearing seat 5, which is close to the half coupling 6, and a quick connector 15 is arranged at the oil filling port.
The ball bearing seat 5 is tightly pressed on the bearing 1 through the first pressing plate 8, the transparent cover 10, the second pressing plate 12, the pressing ring 13 and other parts, and the reliable and looseness-free connection of all parts is ensured.
The ball bearing seat 5 is provided with a stop block 16 protruding inwards near the inner diameter of the shaft shoulder, the stop block is contacted with the end face of the bearing outer ring 17, and the through cover 10, the second pressing plate 12 and the pressing ring 13 press the bearing 1 on the ball bearing seat 5.
Preferably, the outer diameter of the outer ring of the lengthened conical bearing can be arc-shaped, and the outer ring is matched with the bearing seat to disperse the shearing force of the shaft shoulder of the roller.
Example 2
The lengthened tapered roller bearing is characterized in that the bearing 1 is sleeved on the roller shaft 2, a positioning ring 4 is arranged at the contact position of the bearing 1 and the roller shaft shoulder 3, the shape of the inner ring of the positioning ring 4 is matched with the shape of the roller shaft shoulder 3, and the positioning ring 4 is in sealing connection with the bearing 1. The bearing housing is established in the outside of bearing 1 and holding ring 4, and bearing frame one end links to each other with holding ring 4, and the other end links to each other with epaxial half shaft coupling 6 of roll, the bearing frame preferably uses ball bearing frame 5, and the bearing frame external diameter is the cambered surface, and ball bearing frame 5 external diameter cambered surface can play effective dispersion radial shear force, provides the function of protection for roll axle 2, and ball bearing frame 5's axial length is greater than bearing 1's axial length, and ball bearing housing establishes on the bearing and with bearing fixed connection, plays the effect of protection bearing intensity.
Further, the positioning ring 4 is contacted with a large arc at the position of the roller shaft shoulder 3, the radian of the large arc is increased by 3-5 times compared with that of a normal standard, and the shape of the inner ring of the positioning ring 4 is matched with the shape of the radian at the position of the roller shaft shoulder 3.
Further, an annular positioning bulge 7 is arranged on the outer ring of the positioning ring 4, a groove matched with the annular positioning bulge 7 is formed in the ball bearing seat, and the positioning ring 4 is connected with the ball bearing seat 5 through the annular positioning bulge 7 and the groove. A first pressing plate 8 is arranged between the positioning ring 4 and the ball bearing seat 5, the first pressing plate 8 is arranged below the groove of the ball bearing seat, the first pressing plate 8 is connected with the ball bearing seat 5 through bolts, a first spacing ring 9 is arranged on one side, close to the bearing 1, of the first pressing plate 8, and an oil seal is arranged in the first spacing ring 9 to play a sealing role.
Further, the ball bearing seat 5 is connected with the half coupling 6 through the through cover 10, the through cover 10 is sleeved on the half coupling 6 and is tightly pressed on the ball bearing seat 5, the outer side of the through cover 10 is fixedly connected with the ball bearing seat 5 through bolts, the inner side of the through cover 10 is in sealing connection with the half coupling 6 through the second spacing ring 11, an oil seal is arranged in the second spacing ring 11 to play a sealing role, a second pressing plate 12 is arranged at one end, far away from the ball bearing seat 5, of the through cover 10, and the second pressing plate 12 is connected with the through cover 10 through bolts. A compression ring 13 is arranged between the transparent cover 10 and the bearing 1, and the compression ring 13 is arranged below the ball bearing seat 5.
Further, an oil duct 14 is arranged in the ball bearing seat 5, a first branch of the oil duct is connected to the bearing 1, and a second branch of the oil duct is connected to a sealing position between the ball bearing seat 5 and the positioning ring 4. The oil filling port of the oil duct is arranged at one end of the ball bearing seat 5, which is close to the half coupling 6, and a quick connector 15 is arranged at the oil filling port.
The ball bearing seat 5 is tightly pressed on the bearing 1 through the first pressing plate 8, the transparent cover 10, the second pressing plate 12, the pressing ring 13 and other parts, and the reliable and looseness-free connection of all parts is ensured.
The ball bearing seat 5 is provided with a stop block 16 protruding inwards near the inner diameter of the shaft shoulder, the stop block is contacted with the end face of the bearing outer ring 17, and the through cover 10, the second pressing plate 12 and the pressing ring 13 press the bearing 1 on the ball bearing seat 5.
The bearing comprises an inner ring, an outer ring, a retainer and rollers, wherein the retainer is arranged between the inner ring and the outer ring, the rollers are arranged in pockets of the retainer, the rollers are arranged in two rows, and the lengths of the rollers in the two rows are unequal.
Preferably, the outer diameter of the outer ring of the lengthened conical bearing is arc-shaped, and the outer ring is matched with the bearing seat to disperse the shearing force of the shaft shoulder of the roller.
Preferably, the length ratio of the long roller 18 to the short roller 19 in the two rows of rollers is 7:3.
the rollers are inclined planes, the rolling mill bearings are double-row tapered roller bearings, the axial force of the rolling mill bearings is only borne by a single row in use, and the radial force of the rolling mill bearings is borne by the rolling mill bearings and the other row. The tapered roller bearing has very short service life, one side with small cone angle is stressed seriously, the roller path is worn and destroyed fast, and the other side with small force is not worn almost, so that the rolling mill bearing is improved. So that in use the long raceways and rolling bodies bear the small end rolling forces of the conical rolls. The small end of the short rolling body bears the large end force of the conical roller. The service life of the bearing is prolonged by 5 times.
The damage of radial force and axial force of the rolling mill to the roll shaft and the bearing is reduced, the service lives of the roll shaft and the bearing are prolonged, and the working efficiency and the economic benefit are improved through the transformation of the bearing outer bearing seat, the sealing connection structure of the bearing outer bearing seat and the rolling body in the bearing.
Claims (7)
1. Lengthening tapered roller bearing removes bearing frame, sealed cowling, sealing washer and isolation pad on the roller axle, gives over this part's all structures and space to the bearing design, in the bearing that lengthens, changes the bearing both ends into lantern ring sealing device structure, increases the circular arc of roller axle neck shoulder junction, its characterized in that: the bearing is sleeved on the roller shaft, a positioning ring is arranged at the contact position of the bearing and the roller shaft shoulder, the shape of the inner ring of the positioning ring is matched with the shape of the roller shaft shoulder, and the positioning ring is in sealing connection with the bearing; the bearing seat is sleeved on the outer sides of the bearing and the positioning ring, one end of the bearing seat is connected with the positioning ring, and the other end of the bearing seat is connected with the half coupling on the roll shaft; the positioning ring is contacted with a large arc at the position of the roller shaft shoulder, the large arc at the position of the roller shaft shoulder is a radial outwards protruding arc, the shape of the inner ring of the positioning ring is matched with the radian shape of the position of the roller shaft shoulder, the outer ring of the positioning ring is provided with an annular positioning bulge, a groove matched with the annular positioning bulge is arranged on the bearing seat, and the positioning ring is connected with the bearing seat through the annular positioning bulge and the groove; the bearing seat is a ball bearing seat, and the outer diameter of the bearing seat is a cambered surface.
2. The elongated tapered roller bearing according to claim 1, wherein: the positioning ring is provided with a first pressing plate between the positioning ring and the bearing seat, the first pressing plate is arranged below the groove of the bearing seat, the first pressing plate is connected with the bearing seat through a bolt, and one side of the first pressing plate, which is close to the bearing, is provided with a first spacing ring.
3. The elongated tapered roller bearing according to claim 1, wherein: the bearing seat is connected with the half coupling through the transparent cover, the transparent cover is sleeved on the half coupling and tightly pressed on the bearing seat, the outer side of the transparent cover is fixedly connected with the bearing seat through a bolt, the inner side of the transparent cover is in sealing connection with the half coupling through a second spacing ring, a second pressing plate is arranged at one end, far away from the bearing seat, of the transparent cover, and the second pressing plate is connected with the transparent cover through the bolt.
4. A tapered roller bearing as claimed in claim 3, wherein: and a compression ring is arranged between the transparent cover and the bearing and is arranged below the bearing seat.
5. The elongated tapered roller bearing according to claim 1, wherein: an oil duct is arranged in the bearing seat, a first branch of the oil duct is connected to the bearing, and a second branch of the oil duct is connected to the sealing position of the bearing seat and the positioning ring.
6. The elongated tapered roller bearing according to claim 1, wherein: the bearing comprises an inner ring, an outer ring, a retainer and rollers, wherein the retainer is arranged between the inner ring and the outer ring, the rollers are arranged in pockets of the retainer, the rollers are arranged in two rows, and the lengths of the rollers in the two rows are unequal.
7. The elongated tapered roller bearing according to claim 6, wherein: the length ratio of the long roller to the short roller in the two rows of rollers is 7:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810371671.7A CN108361287B (en) | 2018-04-24 | 2018-04-24 | Lengthened tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810371671.7A CN108361287B (en) | 2018-04-24 | 2018-04-24 | Lengthened tapered roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108361287A CN108361287A (en) | 2018-08-03 |
| CN108361287B true CN108361287B (en) | 2023-06-09 |
Family
ID=63008802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810371671.7A Active CN108361287B (en) | 2018-04-24 | 2018-04-24 | Lengthened tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108361287B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3674747B2 (en) * | 1998-08-24 | 2005-07-20 | 光洋精工株式会社 | Widening method of rolling mill and rolling roll support structure |
| JP2001124071A (en) * | 1999-10-26 | 2001-05-08 | Ntn Corp | Bearing for rolling mill roll neck and its roll neck structure |
| JP2006177446A (en) * | 2004-12-22 | 2006-07-06 | Ntn Corp | Tapered roller bearing with aligning ring |
| CN201659147U (en) * | 2010-04-14 | 2010-12-01 | 天津市中重科技工程有限公司 | Isolation ring for realizing falling prevention effect between bearings of roller system of rolling mill rollers |
| CN204213167U (en) * | 2014-10-24 | 2015-03-18 | 成都科华重型轴承有限公司 | Screw down mechanism of rolling mill completely fills tapered roller thrust bearing with the long lifetime |
| DE102016211144A1 (en) * | 2016-06-22 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Double row tapered roller bearing, as well as including the same realized bearing arrangement, in particular for a pinion head |
| CN206925152U (en) * | 2017-06-26 | 2018-01-26 | 常州市瑞宏轧辊有限公司 | Milling train pearlite ductile iron roller assembly |
| CN208106992U (en) * | 2018-04-24 | 2018-11-16 | 瓦房店爱国轴承研究院有限公司 | A kind of lengthening tapered roller bearing |
-
2018
- 2018-04-24 CN CN201810371671.7A patent/CN108361287B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108361287A (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2014059025A (en) | Bearing for wind power/tidal power generation | |
| CN204628265U (en) | A kind of sealed type roller bearing | |
| CN108361287B (en) | Lengthened tapered roller bearing | |
| CN101586605A (en) | Double-row roller bearing without flange | |
| CN202152794U (en) | Shaft bearing | |
| CN202811868U (en) | Double-row bearing support assembly structure | |
| CN202790127U (en) | Sealing structure of bearing | |
| CN208106992U (en) | A kind of lengthening tapered roller bearing | |
| CN212003982U (en) | Single-row four-point contact ball bearing | |
| CN204186793U (en) | A kind of double-row angular contact bal bearing | |
| CN208024715U (en) | Biserial closed type taper roller roller bearing | |
| CN211599274U (en) | Curve tapered roller bearing | |
| CN102878210A (en) | Double-row bearing support assembly structure | |
| CN202790173U (en) | Spherical roller ball-cage coupling | |
| CN201807611U (en) | Novel vertical roller bearing assembly | |
| CN201651051U (en) | Composite rolling bearing | |
| CN209724964U (en) | A kind of drift-pin type integral cage cylinder roller bearing | |
| CN201747771U (en) | Double-row full-complement cylindrical roller ferrule bearing | |
| CN202493597U (en) | Double-row full-complement cylindrical roller bearing with sealing ring | |
| CN211109570U (en) | Guide roller for engineering machinery | |
| CN219492866U (en) | Cross roller double-layer sealing roller bearing | |
| CN220622473U (en) | Bearing pairing structure | |
| CN103185066A (en) | Double-sealed turntable bearing | |
| CN108488229A (en) | A kind of centripetal self-aligning roller bearing of novel full rolling element | |
| CN202963033U (en) | Bearing for resisting thrust loads in two directions of rotating axis and assembly with bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |