CN110805613A - Slewing bearing with function of making an uproar is fallen - Google Patents
Slewing bearing with function of making an uproar is fallen Download PDFInfo
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- CN110805613A CN110805613A CN201911198347.0A CN201911198347A CN110805613A CN 110805613 A CN110805613 A CN 110805613A CN 201911198347 A CN201911198347 A CN 201911198347A CN 110805613 A CN110805613 A CN 110805613A
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- annular
- bearing
- bolt
- slewing bearing
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Classifications
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
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- 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
- F16C33/32—Balls
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- 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
- F16C33/583—Details of specific parts of races
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- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to the technical field of slewing support bearings and discloses a slewing support bearing with a noise reduction function, which comprises a bearing inner ring and a bearing outer ring, wherein annular positioning blocks are arranged on the upper side and the lower side of the bearing outer ring, first annular chutes are formed in the side walls of the two opposite sides of the annular positioning blocks, second annular chutes are formed in the upper side wall and the lower side wall of the bearing inner ring, a plurality of balls are arranged in the two first annular chutes, the balls and the second annular chutes are arranged in a matched mode, a plurality of positioning grooves are formed in the side walls of the two opposite sides of the two annular positioning blocks, bolts are arranged in the positioning grooves, and a plurality of thread grooves matched with the bolts are symmetrically formed in the upper side wall and the lower side wall of the bearing. This gyration support bearing with function of making an uproar is fallen can be convenient for the installation of bearing, and stability is good, and then reduces the noise of bearing operation in-process, the people's of being convenient for use.
Description
Technical Field
The invention relates to the technical field of slewing bearing, in particular to a slewing bearing with a noise reduction function.
Background
The slewing bearing is a novel mechanical part and comprises an inner ring, an outer ring, a rolling body and the like, and the slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. The slewing bearing is also called as a turntable bearing, and some people also call it as: rotary support and rotary support. Slewing bearings are widely used in the real industry and are called: the "joint" of machine is an important transmission component necessary for the machinery which needs to make relative rotary motion between two bodies and simultaneously must bear axial force, radial force and tilting moment.
At present, a slewing bearing is widely applied to industries such as ship equipment, engineering machinery, light industrial machinery, metallurgical machinery, medical machinery and industrial machinery, and in the prior art, the stability of the slewing bearing in the use process is poor, so that the friction force of the slewing bearing is large, the bearing is easy to generate large noise in the sliding process, and the use of people is inconvenient.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the slewing bearing with the noise reduction function, which has the advantages of convenience in bearing installation, good stability, further reduction of noise in the bearing operation process and convenience for people to use, and solves the problems that the slewing bearing has high friction force due to poor stability in the use process, the bearing is easy to generate high noise in the sliding process, and the use by people is inconvenient.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a slewing bearing with function of making an uproar is fallen, includes bearing inner race and bearing inner race, the upper and lower both sides of bearing inner race all are equipped with annular locating piece, two first annular spout has all been seted up to the lateral wall of one side in opposite directions to annular locating piece, the upper and lower both sides wall of bearing inner race all seted up with second annular spout, two all be equipped with a plurality of balls in the first annular spout, and a plurality of balls and second annular spout mutually support the setting, two a plurality of constant head tanks have all been seted up to the lateral wall of one side in opposite directions to annular locating piece, and are a plurality of all be equipped with the bolt in the constant head tank, the equal symmetry of the upper and lower both sides wall of bearing inner race has seted up a plurality ofly and.
Preferably, the outer wall of bearing inner race is fixed to inlay and is equipped with first annular magnet, the inner wall of bearing outer lane is fixed to inlay and is equipped with second annular magnet, first annular magnet is the setting of repelling mutually with second annular magnet.
Preferably, every stop gear all includes two commentaries on classics pieces, two torque spring and two fixed axles, every two logical grooves have been seted up to the both sides wall symmetry that the screw thread groove one side was kept away from to the bolt, two the fixed axle respectively with two both sides wall fixed connection who leads to the groove, two change piece and two torque spring establish with two fixed axle movable sleeve respectively, and two torque spring's both ends respectively with two lateral walls that lead to the groove and two lateral wall fixed connection settings that change the piece, every the lateral wall of constant head tank seted up with changeing a assorted annular positioning groove.
Preferably, every the lateral wall of annular constant head tank all is fixed and is equipped with the rubber gasket, and the rubber gasket offsets with the commentaries on classics piece and sets up, every the cambered surface has all been seted up to the lateral wall that the fixed axle one side was kept away from to the commentaries on classics piece.
Preferably, the first annular sliding groove and the second annular sliding groove are both arranged in a semicircular shape, and lubricating oil is smeared on the first annular sliding groove and the second annular sliding groove.
Preferably, each bolt is movably sleeved with a gasket, and the upper side wall and the lower side wall of the gasket are respectively abutted to the bolt and the positioning groove.
Preferably, the inner diameters of the two annular positioning blocks are larger than the inner diameter of the bearing inner ring.
Preferably, the side walls of the opposite sides of the two annular positioning blocks are symmetrically and fixedly connected with a plurality of positioning blocks, and the top and the bottom of the bearing outer ring are provided with a plurality of limiting grooves matched with the positioning blocks.
Preferably, the first ring magnet and the second ring magnet are both permanent magnets.
Preferably, each ball is made of tungsten alloy material.
(III) advantageous effects
Compared with the prior art, the invention provides a slewing bearing with a noise reduction function, which has the following beneficial effects:
1. this gyration support bearing with function of making an uproar is fallen, a plurality of locating pieces through being equipped with, can be in the same place the mutual joint of annular locating piece and bearing inner race, and make constant head tank and the corresponding setting of thread groove, the bolt that the rethread was equipped with, twist and move the bolt, can make threaded connection be in the same place between bolt and the thread groove, thereby make the fixed stability between annular locating piece and the bearing inner race, the torque spring that the rethread was equipped with, when the bolt rotates to certain position, it is corresponding with annular constant head tank to change the piece, the torque spring that the rethread was equipped with, torque spring's torque force drives and changes the piece and rotate, make its and the mutual block of annular constant head tank, and through the annular constant head tank that is equipped with, can be to the stability of bolt in.
2. This slewing bearing with function of making an uproar is fallen through two annular locating pieces that are equipped with, with one of them annular locating piece and bearing inner race fixed connection, the rethread with the ball place with first ring channel and second ring channel in, with fixed connection between another annular locating piece and the bearing inner race again simultaneously to be convenient for people's safety, and stability is high, and then reduces the noise of bearing operation in-process, the people's of being convenient for use.
Drawings
FIG. 1 is a schematic view of a slewing bearing with noise reduction function according to the present invention;
FIG. 2 is a schematic view showing the internal structure of the vent pipe according to the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 1;
fig. 4 is a schematic top view of a slewing bearing with noise reduction function according to the present invention.
In the figure: the bearing comprises a bearing inner ring 1, a bearing outer ring 2, an annular positioning block 3, a ball 4, a bolt 5, a first annular magnet 6, a second annular magnet 7, a rotating block 8, a torsion spring 9, a fixing shaft 10, a rubber gasket 11, lubricating oil 12, a gasket 13 and a positioning block 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a slewing support bearing with noise reduction function comprises a bearing inner ring 1 and a bearing outer ring 2, wherein the upper side and the lower side of the bearing outer ring 2 are respectively provided with an annular positioning block 3, the side wall of the opposite side of the two annular positioning blocks 3 is respectively provided with a first annular chute, the upper side and the lower side of the bearing inner ring 1 are respectively provided with a second annular chute, the two first annular chutes are respectively internally provided with a plurality of balls 4, the plurality of balls 4 and the second annular chute are mutually matched, the side wall of the opposite side of the two annular positioning blocks 3 is respectively provided with a plurality of positioning grooves, the plurality of positioning grooves are respectively internally provided with bolts 5, the upper side and the lower side of the bearing outer ring 2 are respectively symmetrically provided with a plurality of thread grooves matched with the bolts 5, each bolt 5 is provided with a limiting mechanism, and one of the annular positioning blocks 3 is fixedly connected with, through placing ball 4 again with first ring channel and second ring channel in, with fixed connection between another annular locating piece 3 and the bearing inner race 2 again simultaneously to the people's of being convenient for safety, and stability is high, and then reduces the noise of bearing operation in-process, the people's of being convenient for use.
The outer wall of bearing inner race 1 is fixed to be inlayed and is equipped with first annular magnet 6, and the inner wall of bearing outer race 2 is fixed to be inlayed and is equipped with second annular magnet 7, and first annular magnet 6 is the setting of repelling mutually with second annular magnet 7, can make the repulsion force between first annular magnet 6 and the second annular magnet 7, can improve the stability of bearing inner race 1 when the rotation.
Each limiting mechanism comprises two rotating blocks 8, two torsion springs 9 and two fixing shafts 10, two through grooves are symmetrically formed in two side walls of one side, away from the thread groove, of each bolt 5, the two fixing shafts 10 are fixedly connected with two side walls of the two through grooves respectively, the two rotating blocks 8 and the two torsion springs 9 are movably sleeved with the two fixing shafts 10 respectively, two ends of each torsion spring 9 are fixedly connected with side walls of the two through grooves and side walls of the two rotating blocks 8 respectively, an annular positioning groove matched with the rotating block 8 is formed in the side wall of each positioning groove, the bolt 5 is screwed through the arranged bolt 5, the bolt 5 and the thread groove can be connected together in a threaded mode, accordingly, the stability between the annular positioning block 3 and the bearing outer ring 2 is fixed, the torsion springs 9 are arranged, when the bolt 5 rotates to a certain position, the rotating block 8 corresponds to the annular positioning groove, the torsion spring 9 that the rethread was equipped with, torsion spring 9's torsion drive commentaries on classics piece 8 rotates, makes its and the mutual block of annular positioning groove to through the annular positioning groove that is equipped with, can prevent its not hard up to the stability of bolt 5 in the use, be convenient for people's use.
Every annular positioning groove's lateral wall all is fixed and is equipped with rubber gasket 11, and rubber gasket 11 offsets with commentaries on classics piece 8 and sets up, and every commentaries on classics piece 8 keeps away from the lateral wall of fixed axle 10 one side and has all seted up the arcwall face, can make the stability of block between commentaries on classics piece 8 and the annular positioning groove, the people's of being convenient for use.
First annular spout and the equal semicircular in shape setting of second annular spout, and first annular spout and second annular spout have all been paintd lubricating oil 12, can reduce the frictional force between ball 4 and first annular spout and the second annular spout, and then reduce the noise of ball 4 when rotating.
Every bolt 5 all movable sleeve is equipped with gasket 13, and the upper and lower both sides wall of gasket 13 offsets with bolt 5 and constant head tank respectively and sets up, can further improve the stability of bolt 5 in the use.
The inner diameters of the two annular positioning blocks 3 are larger than the inner diameter of the bearing inner ring 1, so that the annular positioning blocks 3 are prevented from influencing the use of the bearing inner ring 1.
The lateral wall of two annular locating pieces 3 one side in opposite directions is a plurality of location 14 of equal symmetry fixedly connected with, and bearing inner race 2's top and bottom have all been seted up a plurality ofly and locating piece 14 assorted spacing groove, the stability of location between annular locating piece 3 and the bearing inner race 2 of can being convenient for.
First annular magnet 6 and second annular magnet 7 are the permanent magnet, can make the stability of repulsion between first annular magnet 6 and the second annular magnet 7, improve bearing inner race 1 pivoted stability then.
Every ball 4 all adopts the tungsten alloy material to make, can guarantee ball 4's life, and then be convenient for people still use.
In summary, the slewing bearing with noise reduction function, when in use, through the plurality of locating blocks 14, the annular locating block 3 and the bearing outer ring 2 can be mutually clamped together, and the locating groove and the thread groove are correspondingly arranged, then the bolt 5 is screwed through the arranged bolt 5, the bolt 5 and the thread groove can be connected together in a threaded manner, so that the stability of fixing between the annular locating block 3 and the bearing outer ring 2 is ensured, and then the torsion spring 9 is arranged, when the bolt 5 rotates to a certain position, the rotating block 8 corresponds to the annular locating groove, and then the torsion spring 9 is arranged, the torsion force of the torsion spring 9 drives the rotating block 8 to rotate, so that the rotating block and the annular locating groove are mutually clamped, and through the arranged annular locating groove, the stability of the bolt 5 in the use process can be prevented, the looseness of the bolt is prevented, the slewing bearing is convenient for people to use, through the two annular locating blocks 3, with one of them annular locating piece 3 and bearing inner race 2 fixed connection, the rethread with ball 4 place with first ring channel and second ring channel in, with fixed connection between another annular locating piece 3 and the bearing inner race 2 again simultaneously to the people's of being convenient for safety, and stability is high, and then reduces the noise of bearing operation in-process, the people's of being convenient for use.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a slewing bearing with function of making an uproar is fallen, includes bearing inner race (1) and bearing outer lane (2), its characterized in that: the upper and lower both sides of bearing inner race (2) all are equipped with annular locating piece (3), two first annular spout has all been seted up to annular locating piece (3) the lateral wall of one side in opposite directions, the upper and lower both sides wall of bearing inner race (1) has all been seted up with second annular spout, two all be equipped with a plurality of balls (4) in the first annular spout, and a plurality of balls (4) and second annular spout mutually support the setting, two a plurality of constant head tanks have all been seted up to the lateral wall of one side in opposite directions of annular locating piece (3), and are a plurality of all be equipped with bolt (5) in the constant head tank, a plurality of and bolt (5) assorted thread groove, every are seted up to the equal symmetry of upper and lower both sides wall of bearing inner race (2) bolt (5) all are.
2. The slewing bearing with the noise reduction function according to claim 1, wherein: the outer wall of bearing inner race (1) is fixed to be inlayed and is equipped with first annular magnet (6), the inner wall of bearing outer lane (2) is fixed to be inlayed and is equipped with second annular magnet (7), first annular magnet (6) are the setting of repelling mutually with second annular magnet (7).
3. The slewing bearing with the noise reduction function according to claim 1, wherein: every stop gear all includes two commentaries on classics piece (8), two torque spring (9) and two fixed axle (10), every bolt (5) are kept away from the both sides wall symmetry of thread groove one side and have been seted up two and have been led to the groove, two fixed axle (10) respectively with two both sides wall fixed connection that lead to the groove, two change piece (8) and two torque spring (9) and establish with two fixed axle (10) movable sleeve respectively, and the both ends of two torque spring (9) respectively with two lateral walls that lead to the groove and two lateral wall fixed connection settings that change piece (8), every the annular constant head tank with change piece (8) assorted is seted up to the lateral wall of constant head tank.
4. A slewing bearing with a noise reducing function according to claim 3, wherein: every the lateral wall of annular constant head tank all is fixed and is equipped with rubber gasket (11), and rubber gasket (11) and commentaries on classics piece (8) offset the setting, every the lateral wall of fixed axle (10) one side is kept away from in commentaries on classics piece (8) has all seted up the arcwall face.
5. The slewing bearing with the noise reduction function according to claim 1, wherein: the first annular sliding groove and the second annular sliding groove are both arranged in a semicircular shape, and lubricating oil (12) is smeared on the first annular sliding groove and the second annular sliding groove.
6. The slewing bearing with the noise reduction function according to claim 1, wherein: every bolt (5) all movable sleeve is equipped with gasket (13), and the upper and lower both sides wall of gasket (13) respectively with bolt (5) and constant head tank counterbalance setting.
7. The slewing bearing with the noise reduction function according to claim 1, wherein: the inner diameters of the two annular positioning blocks (3) are larger than the inner diameter of the bearing inner ring (1).
8. The slewing bearing with the noise reduction function according to claim 1, wherein: the side wall of one side of the two annular positioning blocks (3) opposite to each other is symmetrically and fixedly connected with a plurality of positioning blocks (14), and the top and the bottom of the bearing outer ring (2) are provided with a plurality of limiting grooves matched with the positioning blocks (14).
9. A slewing bearing with a noise reducing function according to claim 2, wherein: the first annular magnet (6) and the second annular magnet (7) are both permanent magnets.
10. The slewing bearing with the noise reduction function according to claim 1, wherein: each ball (4) is made of tungsten alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198347.0A CN110805613A (en) | 2019-11-29 | 2019-11-29 | Slewing bearing with function of making an uproar is fallen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198347.0A CN110805613A (en) | 2019-11-29 | 2019-11-29 | Slewing bearing with function of making an uproar is fallen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110805613A true CN110805613A (en) | 2020-02-18 |
Family
ID=69492067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911198347.0A Pending CN110805613A (en) | 2019-11-29 | 2019-11-29 | Slewing bearing with function of making an uproar is fallen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110805613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872001A (en) * | 2020-07-10 | 2020-11-03 | 马鞍山市广源法兰环件有限公司 | Rotary supporting mechanism of rotary bottle washing machine |
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| JP2003042175A (en) * | 2001-07-31 | 2003-02-13 | Nsk Ltd | Rolling bearing unit with encoder |
| WO2007080917A1 (en) * | 2006-01-12 | 2007-07-19 | Ntn Corporation | Rotary bearing having rotation sensor |
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| CN202901009U (en) * | 2012-09-24 | 2013-04-24 | 马鞍山市鹏达机械设备研发有限公司 | Dual-roller inner support revolving support |
| US20170152858A1 (en) * | 2015-11-27 | 2017-06-01 | Ntn-Snr Roulements | Rolling bearing for blade root and manufacturing method, system, oscillating system, and rotating system comprising such a bearing |
| CN208311258U (en) * | 2018-04-04 | 2019-01-01 | 江苏双正机械有限公司 | A kind of high axial carrying plain thrust bearing |
-
2019
- 2019-11-29 CN CN201911198347.0A patent/CN110805613A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042175A (en) * | 2001-07-31 | 2003-02-13 | Nsk Ltd | Rolling bearing unit with encoder |
| WO2007080917A1 (en) * | 2006-01-12 | 2007-07-19 | Ntn Corporation | Rotary bearing having rotation sensor |
| CN201041183Y (en) * | 2007-03-22 | 2008-03-26 | 邵国强 | Torsion spring type loose-proof bolt |
| CN201065880Y (en) * | 2007-05-18 | 2008-05-28 | 刘胜忠 | Anti-loosen bolt and screw nut subassembly |
| CN102678745A (en) * | 2011-03-10 | 2012-09-19 | 丁默 | Permanent magnetic bearing |
| CN202901009U (en) * | 2012-09-24 | 2013-04-24 | 马鞍山市鹏达机械设备研发有限公司 | Dual-roller inner support revolving support |
| US20170152858A1 (en) * | 2015-11-27 | 2017-06-01 | Ntn-Snr Roulements | Rolling bearing for blade root and manufacturing method, system, oscillating system, and rotating system comprising such a bearing |
| CN208311258U (en) * | 2018-04-04 | 2019-01-01 | 江苏双正机械有限公司 | A kind of high axial carrying plain thrust bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872001A (en) * | 2020-07-10 | 2020-11-03 | 马鞍山市广源法兰环件有限公司 | Rotary supporting mechanism of rotary bottle washing machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200218 |
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| RJ01 | Rejection of invention patent application after publication |