CN114211400A - Surface corrosion prevention device for wind power slewing bearing and use method thereof - Google Patents
Surface corrosion prevention device for wind power slewing bearing and use method thereof Download PDFInfo
- Publication number
- CN114211400A CN114211400A CN202111592511.3A CN202111592511A CN114211400A CN 114211400 A CN114211400 A CN 114211400A CN 202111592511 A CN202111592511 A CN 202111592511A CN 114211400 A CN114211400 A CN 114211400A
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- Prior art keywords
- slewing bearing
- plugging
- ring
- prevention device
- corrosion prevention
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
- B24C3/20—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by turntables
- B24C3/22—Apparatus using nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Abstract
The invention relates to the technical field of bearing processing equipment, and discloses a surface corrosion prevention device for a wind power slewing bearing. This be used for wind-powered electricity generation slewing bearing surface corrosion prevention device and application method thereof, it is coaxial with the support column to utilize the setting element to make slewing bearing, realize the position and mark, carry out automatic sandblast operation on this basis, and the closure of sliding surface and mounting hole, use manpower sparingly, it is more high-efficient, the environmental quality in operation place has been improved simultaneously, seal the sand grain in the space that the casing was located, secondly, the thrust bearing who undertakes main motion load seals in the support cover, through long and thin sand grain of keeping apart the suspension usually, guarantee thrust bearing operational environment's cleanness, improve thrust bearing and servo driver's life.
Description
Technical Field
The invention relates to the technical field of bearing processing equipment, in particular to a surface anticorrosion device for a wind power slewing bearing and a using method thereof.
Background
The slewing bearing is usually installed at the head and the fan blade of a large-scale wind driven generator and used for adjusting the windward angle and the fan blade angle so as to ensure the stress uniformity of the fan, and the wind driven generator is arranged in the field, so that the wind driven generator has larger load and is contacted with slightly acidic rainwater in the environment and corrosive substances such as solid particles in the air for a long time, and thus, the wind driven generator has higher requirement on the corrosion resistance.
When the slewing bearing is manufactured, corrosion resistance treatment needs to be carried out on the slewing bearing, sand blasting, zinc spraying and paint spraying are generally needed, sand grains are driven to impact the surface of the slewing bearing through high-speed airflow during sand blasting treatment, the surface roughness of the slewing bearing is increased, the adhesive force of zinc and paint is improved, in order to keep the smoothness of a sliding surface and the matching degree of threads, the slewing bearing needs to be sealed during sand blasting to isolate the impact of the sand grains, and meanwhile, due to the fact that the size and the mass of the slewing bearing are large, the slewing bearing is not convenient to operate automatically.
On the other hand, during the sand blasting operation, sand particles impact the surface of the slewing bearing and then bounce and float in the air, the slewing bearing has large mass and needs mechanical assistance to move the slewing bearing so as to complete sand blasting on the surface of the slewing bearing, and the sand particles floating in the air can shorten the service life of mechanical moving parts, particularly under large load.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the technical scheme for the surface anticorrosion device of the wind power slewing bearing and the use method thereof.
The invention provides the following technical scheme: the utility model provides a be used for wind-powered electricity generation slewing bearing surface corrosion prevention device, includes the casing that can hold slewing bearing, the middle part fixedly connected with support column of casing, the top of support column is connected with the support cover through thrust bearing, be equipped with servo driver between support column top and the support cover, the middle part of support cover is connected with the setting element that adjusts slewing bearing and make its and support column coaxial line, the bottom of casing is connected and is equipped with the elevating platform, elevating platform fixedly connected with is used for maintaining the horizontally horizontal holding piece when slewing bearing embolias, the top of casing is equipped with the shutoff ring that can vertically remove, the bottom of shutoff ring is equipped with the shutoff post, the casing is equipped with the horizontal migration shower nozzle that can radially move and the vertical migration shower nozzle that can the axis motion corresponding to slewing bearing's final placement position.
Preferably, the positioning elements are inclined sliding plates, the number of the positioning elements is at least three, and the three positioning elements are arrayed along the axis of the shell.
Preferably, the horizontal holding piece consists of three cylinders, the cylinders penetrate through the bottom of the shell and are connected with the lifting platform, and the side walls of the cylinders are provided with dust plugs.
Preferably, the plugging column comprises an upper plugging head filled with gas and an expandable lower plugging head, the upper plugging head is connected through a connecting pipe, a control valve is arranged on the connecting pipe and is opened under the action of magnetic force, an armature is arranged on the upper end face of the upper plugging head, the plugging ring comprises an outer ring and an inner adjusting ring located inside the outer ring, an adjusting motor for driving the inner adjusting ring to rotate is arranged in the outer ring, and a permanent magnet corresponding to the plugging column is arranged on the inner adjusting ring.
Preferably, the bottom of the plugging ring is provided with a laser emitter corresponding to the mounting hole, and the bottom of the shell is provided with a corresponding receiver.
Preferably, shelter from the gleitbretter and include the vertical pole that horizontal migration shower nozzle telescopic link is connected, the lower extreme all is connected with through having elastic sheet on the vertical pole and shelters from the gleitbretter, elastic sheet inclines to the middle part, the middle part of vertical pole is equipped with the locating wheel, vertical pole passes through the spring and is connected with the telescopic link of horizontal migration shower nozzle, and when the direction of injection of horizontal migration shower nozzle was located slewing bearing outermost edge, sheltered from the gleitbretter and support tight gap.
A use method of the surface anticorrosion device for the wind power slewing bearing comprises the following steps:
(1) lifting the lifting platform to enable the lifting platform to be at the highest position;
(2) the slewing bearing is sent into the shell by a forklift or a transfer robot, sleeved on the positioning piece and placed on the horizontal holding piece;
(3) the height of the lifting platform is reduced to the lowest point at a constant speed, and the slewing bearing is clamped on the positioning piece;
(4) enabling the servo driver to drive the supporting cover and the positioning piece to rotate to drive the rotary bearing to rotate, and rotating the rotary bearing by a set angle when the receiver receives a laser signal to align the plugging column with the mounting hole;
(5) reducing the height of the plugging ring to enable the plugging column to be inserted into the mounting hole and to be compressed;
(6) the adjusting motor drives the inner adjusting ring to rotate, so that the permanent magnet is staggered with the control valve, the control valve is closed, and the plugging ring is lifted to the highest point;
(7) sequentially opening the horizontal moving spray head and the vertical moving spray head, changing the relative positions of the horizontal moving spray head and the vertical moving spray head, and carrying out sand blasting operation;
(8) after sand blasting is finished, the height of the plugging ring is reduced, the distance from the plugging column is kept at a fixed value, the inner adjusting ring is driven to rotate to enable the inner adjusting ring to align with the control valve, and gas in the lower plugging head flows back to the upper plugging head and then is reduced, so that the magnetic force of the plugging ring sucks the plugging column;
(9) and the forklift or the transfer robot moves the slewing bearing out, and manual sand blasting operation is carried out on the position shielded by the positioning piece, so that all sand blasting operation is completed.
Preferably, in the step (7), two nozzles of the horizontally moving nozzle are simultaneously turned on to perform the blasting operation, and two nozzles of the vertically moving nozzle are sequentially turned on.
The invention has the following beneficial effects:
1. according to the surface anticorrosion device for the wind power slewing bearing and the using method thereof, the slewing bearing and the supporting column are coaxial by utilizing the positioning piece, the position calibration is realized, automatic sand blasting operation is performed on the basis, and the sliding surface and the mounting hole are sealed, so that on one hand, labor is saved, the efficiency is higher, on the other hand, the environment quality of an operation place is improved, and sand grains are sealed in the space where the shell is located.
2. According to the surface corrosion prevention device for the wind power slewing bearing and the using method thereof, the thrust bearing main motion load is sealed in the supporting cover, and the long and thin sand particles which are usually suspended are isolated, so that the cleanness of the working environment of the thrust bearing is ensured, and the service lives of the thrust bearing and a servo driver are prolonged.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of a positioning member and a horizontal retaining member of the present invention;
FIG. 4 is a schematic structural view of a plugging ring according to the present invention;
FIG. 5 is a schematic structural view of a plugging column according to the present invention;
FIG. 6 is a schematic view of the structure of the shielding slider in the present invention.
In the figure: 1. a housing; 2. a support pillar; 3. a thrust bearing; 4. a support housing; 5. a servo driver; 6. a positioning member; 7. a horizontal holder; 8. a lifting platform; 9. a plugging ring; 91. an outer ring; 92. an inner adjusting ring; 93. adjusting the motor; 94. a permanent magnet; 10. plugging the column; 101. an upper plugging head; 102. a connecting pipe; 103. a lower plugging head; 104. a control valve; 105. an armature; 11. horizontally moving the spray head; 12. vertically moving the spray head; 13. shielding the sliding sheet; 131. a vertical rod; 132. a spring; 133. positioning wheels; 134. an elastic sheet; 135. and (4) shielding the sliding sheet.
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, a surface corrosion protection device for a wind power slewing bearing comprises a housing capable of accommodating the slewing bearing, a support column 2 is fixedly connected to the middle of the housing 1, the top of the support column 2 is connected with a support cover 4 through a thrust bearing 3, a servo driver 5 is arranged between the top of the support column 2 and the support cover 4, the servo driver 5 can drive the support cover 4 to rotate at a constant speed, the support cover 4 forms a narrow and long channel, fine sand is effectively prevented from interfering with the operation of the servo driver 5 and the thrust bearing 3, a positioning part 6 for adjusting the slewing bearing to be coaxial with the support column 2 is connected to the middle of the support cover 4, when the slewing bearing is sleeved, the positioning part is coaxial with the support column 2, a lifting table 8 is connected to the bottom of the housing 1, the lifting table 8 is fixedly connected with a horizontal retaining part 7 for maintaining the level when the slewing bearing is sleeved, and a forklift is convenient for carrying the slewing bearing by a robot, the acting force of the lifting platform 8 is enough to jack the lifting platform to suspend the lifting platform, the surface of the horizontal retaining piece 7 is provided with a ball to facilitate the random movement when lifting the slewing bearing, at least one side of the shell 1 is provided with an openable door, please refer to fig. 2, the shell is provided with a door made of soft hair, the slewing bearing can be directly placed while isolating sand, the frame is transparent to facilitate the observation of the placement of the bearing, the top of the shell 1 is provided with a vertically movable plugging ring 9, the plugging ring 9 is connected with an air cylinder or a hydraulic cylinder, the main body of the plugging ring is positioned outside the shell 1, an inner piston rod is sleeved with a sand-proof cover, the plugging ring 9 can be sleeved on the support cover 4, the bottom of the plugging ring 9 is provided with plugging columns 10, the number of the plugging columns 10 corresponds to the installation holes, the positions of the plugging columns 10 are relatively consistent to the installation holes when the slewing bearing is coaxial with the support columns 2, the shell 1 is provided with a horizontally movable spray head 11 capable of radial movement and a vertically movable axial line corresponding to the final placement position of the slewing bearing The movable nozzles 12 are connected with air pipes and sand pipes, which are not shown in the figure, and the bottom of the shell 1 is provided with a low-lying part for collecting and discharging sand grains.
The positioning pieces 6 are inclined sliding plates, rolling rollers are arranged on the cross section of each positioning piece 6, the radian of each rolling roller is the same as that of each slewing bearing, contact points are increased, the positioning pieces are fixedly connected with the side walls of the supporting covers 4 through mounting frames, the slewing bearings can be conveniently sleeved, the upper ends of the positioning pieces are close to the axis, the positioning pieces 6 are at least three groups, the three groups of positioning pieces 6 are arrayed along the axis of the shell 1, the positioning pieces 6 are three to six groups of display paths to form a circular table, and when the slewing bearings are sleeved, the centering is realized through mutual acting force.
Referring to fig. 3, the horizontal holder 7 is composed of three cylinders, the cylinders are disposed between the two positioning members 6, the cylinders penetrate through the bottom of the housing 1 and are connected with the lifting platform 8, the side walls of the cylinders are provided with dust plugs, gaps are naturally blocked after the cylinders fall, and sand particles are prevented from leaking.
Referring to fig. 4, the plugging column 10 includes an upper plugging head 101 filled with gas and an expandable lower plugging head 103, i.e. the upper plugging head I01 has no elasticity, the lower plugging head 103 has elasticity, the gas is pressed into the upper plugging head 101 when communicating, the upper plugging head 101 is connected by a connecting pipe 102, the connecting pipe 102 is rigid, the diameters of the lower plugging head 103 and the connecting pipe 102 are smaller than the diameter of the mounting hole, the upper plugging head 101 is larger than the diameter of the mounting hole, the connecting pipe 102 is provided with a control valve 104, the control valve 104 is opened under the action of magnetic force and is closed without magnetic force, the upper end face of the upper plugging head 101 is provided with an armature 105, the whole plugging column 10 is attracted to the plugging ring 9 by the armature 105, the middle part of the armature 105 is provided with a gap to ensure that the magnetic force can control the control valve 104, the plugging ring 9 includes an outer ring 91 and an inner adjusting ring 92 located inside the outer ring 91, the inner adjusting ring 92 rotates around the axis of the outer ring 91, an adjusting motor 93 for driving the inner adjusting ring 92 to rotate is arranged in the outer ring 91 and is also positioned in the outer ring 91, a permanent magnet 94 corresponding to the plugging column 10 is arranged on the inner adjusting ring 92, and the adjusting motor 93 drives the inner adjusting ring 92 to rotate so as to enable the inner adjusting ring to correspond to or be staggered with the plugging column 10.
Wherein, the bottom of shutoff ring 9 is equipped with a laser emitter who corresponds with the mounting hole, and the bottom of casing 1 is equipped with corresponding receiver.
Referring to fig. 5, the shielding slip sheet 13 includes a vertical rod 131 connected to a telescopic rod of the horizontal movement nozzle 11, the upper end and the lower end of the vertical rod 131 are connected to a shielding slip sheet 135 through elastic sheets 134, the elastic sheets 134 are inclined toward the middle, the elastic sheets 134 are used for clamping the slewing bearing, the radian of the shielding slip sheet 135 is the same as the radian of the gap between the inner ring and the outer ring of the slewing bearing, so as to protect the gap, and prevent sand from impacting the inner wall, a positioning wheel 133 is arranged in the middle of the vertical rod 131, the vertical rod 131 is connected to the telescopic rod of the horizontal movement nozzle 11 through a spring 132, when the spraying direction of the horizontal movement nozzle 11 is located at the outermost edge of the slewing bearing, the shielding slip sheet 135 abuts against the gap, and then, when the radial position of the horizontal movement nozzle 11 is adjusted, the spring 132 is compressed, and the position of the shielding slip sheet 135 is not changed.
A use method of the surface anticorrosion device for the wind power slewing bearing comprises the following steps:
(1) lifting the lifting platform 8 to be at the highest position;
(2) the slewing bearing is sent into the shell 1 by a forklift or a transfer robot, is sleeved on the positioning piece 6 and is placed on the horizontal holding piece 7;
(3) the height of the lifting platform 8 is reduced to the lowest point at a constant speed, and the slewing bearing is clamped on the positioning piece 6;
(4) the servo driver 5 drives the supporting cover 4 and the positioning piece 6 to rotate to drive the rotary bearing to rotate, and when the receiver receives a laser signal, the receiver rotates by a set angle to align the plugging column 10 with the mounting hole;
(5) the height of the plugging ring 9 is reduced, so that the plugging column 10 is inserted into the mounting hole, the control valve 104 is opened at the moment, the gas in the upper plugging head 101 is pressed into the lower plugging head 103, the lower plugging head 103 expands, the connecting pipe 102 is tightened, and the upper end and the lower end of the mounting hole are plugged;
(6) the adjusting motor 93 drives the inner adjusting ring 92 to rotate, so that the permanent magnet 94 and the control valve 104 are staggered, the control valve 104 is closed, and the plugging ring 9 is lifted to the highest point;
(7) sequentially opening the horizontal moving spray head 11 and the vertical moving spray head 12, changing the relative positions of the horizontal moving spray head 11 and the vertical moving spray head 12, and carrying out sand blasting operation;
(8) after the sand blasting is finished, the height of the plugging ring 9 is reduced, the distance from the plugging column 10 is kept at a fixed value, the inner adjusting ring 92 is driven to rotate to enable the inner adjusting ring to align with the control valve 104, and gas in the lower plugging head 103 flows back to the upper plugging head 101 and then is reduced, so that the magnetic force of the plugging ring 9 sucks up the plugging column 10;
(9) the slewing bearing is moved out by the forklift or the transfer robot, manual sand blasting operation is carried out on the position shielded by the positioning piece 6, all sand blasting operation is completed, and after the completion, residual sand in the forklift or the transfer robot can be cleaned by the blower.
Wherein, in step (7), two shower nozzles of the horizontal migration shower nozzle 11 are opened simultaneously and are carried out the sandblast operation, and two shower nozzles of the vertical migration shower nozzle 12 are opened in proper order, because there is a gear in the inner and outer lane, the time of the two sandblast operations is asynchronous, accomplish the inner circle sandblast earlier and then carry out outer lane sandblast room, or vice versa.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are 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.
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 (8)
1. The utility model provides a be used for wind-powered electricity generation slewing bearing surface corrosion prevention device, includes the casing that can hold slewing bearing, its characterized in that: a supporting column (2) is fixedly connected with the middle part of the shell (1), the top of the supporting column (2) is connected with a supporting cover (4) through a thrust bearing (3), a servo driver (5) is arranged between the top of the supporting column (2) and the supporting cover (4), the middle part of the supporting cover (4) is connected with a positioning piece (6) which adjusts the slewing bearing to enable the slewing bearing to be coaxial with the supporting column (2), the bottom of the shell (1) is connected with a lifting platform (8), the lifting platform (8) is fixedly connected with a horizontal holding piece (7) used for maintaining the level of the slewing bearing when the slewing bearing is sleeved, the top of the shell (1) is provided with a vertically movable plugging ring (9), the bottom of the plugging ring (9) is provided with a plugging column (10), and the shell (1) is provided with a horizontal moving spray head (11) capable of moving radially and a vertical moving spray head (12) capable of moving axially corresponding to the final placement position of the slewing bearing.
2. The surface corrosion prevention device for the wind power slewing bearing according to claim 1, characterized in that: the positioning pieces (6) are oblique sliding plates, the number of the positioning pieces (6) is at least three, and the positioning pieces (6) in the three groups are arrayed along the axis of the shell (1).
3. The surface corrosion prevention device for the wind power slewing bearing according to claim 2, characterized in that: the horizontal retaining piece (7) is composed of three cylinders, the cylinders penetrate through the bottom of the shell (1) and are connected with the lifting platform (8), and the side walls of the cylinders are provided with dustproof plugs.
4. The surface corrosion prevention device for the wind power slewing bearing according to claim 1, characterized in that: the blocking column (10) comprises an upper blocking head (101) filled with gas and an expandable lower blocking head (103), the upper blocking head (101) is connected through a connecting pipe (102), a control valve (104) is arranged on the connecting pipe (102), the control valve (104) is opened under the action of magnetic force, an armature (105) is arranged on the upper end face of the upper blocking head (101), the blocking ring (9) comprises an outer ring (91) and an inner adjusting ring (92) located inside the outer ring (91), a driving inner adjusting ring (92) rotating adjusting motor (93) is arranged in the outer ring (91), and a permanent magnet (94) corresponding to the blocking column (10) is arranged on the inner adjusting ring (92).
5. The surface corrosion prevention device for the wind power slewing bearing according to claim 4, characterized in that: the bottom of the plugging ring (9) is provided with a laser emitter corresponding to the mounting hole, and the bottom of the shell (1) is provided with a corresponding receiver.
6. The use method of the surface corrosion prevention device for the wind power slewing bearing according to claim 1 is characterized in that: shelter from gleitbretter (13) vertical pole (131) including horizontal migration shower nozzle (11) telescopic link connection, the lower extreme all is connected with through having elastic sheet (134) and shelters from gleitbretter (135) on vertical pole (131), elastic sheet (134) are to the middle part slope, the middle part of vertical pole (131) is equipped with positioning wheel (133), vertical pole (131) are connected with the telescopic link of horizontal migration shower nozzle (11) through spring (132), and when the injection direction of horizontal migration shower nozzle (11) is located slewing bearing outermost edge, shelter from gleitbretter (135) and support tight gap.
7. The use method of the wind power slewing bearing surface corrosion prevention device for operating the wind power slewing bearing surface corrosion prevention device disclosed by any one of claims 1-6 to perform sand blasting operation on the slewing bearing is characterized by comprising the following steps of:
(1) lifting the lifting platform (8) to be at the highest position;
(2) the slewing bearing is sent into the shell (1) by a forklift or a transfer robot, is sleeved on the positioning piece (6) and is placed on the horizontal holding piece (7);
(3) the height of the lifting platform (8) is reduced to the lowest point at a constant speed, and the slewing bearing is clamped on the positioning piece (6);
(4) enabling the servo driver (5) to drive the supporting cover (4) and the positioning piece (6) to rotate to drive the rotary bearing to rotate, and rotating by a set angle when the receiver receives a laser signal to enable the plugging column (10) to be aligned with the mounting hole;
(5) the height of the plugging ring (9) is reduced, so that the plugging column (10) is inserted into the mounting hole and is pressed tightly;
(6) the adjusting motor (93) drives the inner adjusting ring (92) to rotate, so that the permanent magnet (94) and the control valve (104) are staggered, the control valve (104) is closed, and the plugging ring (9) is lifted to the highest point;
(7) sequentially opening the horizontal moving spray head (11) and the vertical moving spray head (12), and changing the relative positions of the horizontal moving spray head (11) and the vertical moving spray head (12) to perform sand blasting operation;
(8) after sand blasting is finished, the height of the plugging ring (9) is reduced, the distance from the plugging column (10) is kept at a fixed value, the inner adjusting ring (92) is driven to rotate to enable the inner adjusting ring to be aligned with the control valve (104), and gas in the lower plugging head (103) flows back into the upper plugging head (101) and then is reduced, so that the magnetic force of the plugging ring (9) sucks the plugging column (10);
(9) and the forklift or the transfer robot carries out the slewing bearing, and manual sand blasting operation is carried out on the position shielded by the positioning piece (6) to complete all sand blasting operation.
8. The use method of the surface corrosion prevention device for the wind power slewing bearing according to claim 1 is characterized in that: in the step (7), two nozzles of the horizontally moving nozzle (11) are simultaneously opened to perform blasting operation, and two nozzles of the vertically moving nozzle (12) are sequentially opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592511.3A CN114211400A (en) | 2021-12-21 | 2021-12-21 | Surface corrosion prevention device for wind power slewing bearing and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592511.3A CN114211400A (en) | 2021-12-21 | 2021-12-21 | Surface corrosion prevention device for wind power slewing bearing and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114211400A true CN114211400A (en) | 2022-03-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111592511.3A Withdrawn CN114211400A (en) | 2021-12-21 | 2021-12-21 | Surface corrosion prevention device for wind power slewing bearing and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114211400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430240A (en) * | 2022-09-13 | 2022-12-06 | 南京宏亚建设集团有限公司 | Dust device for building engineering |
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| US20050186889A1 (en) * | 2004-02-20 | 2005-08-25 | Mcneil Gary | Wheel polishing device |
| CN209850703U (en) * | 2018-12-11 | 2019-12-27 | 叶春梅 | Novel sand blasting machine |
| CN112824046A (en) * | 2019-11-20 | 2021-05-21 | 宝山钢铁股份有限公司 | Inner wall combined sand prevention plug for sand blasting of external threads of oil casing and anti-blocking method thereof |
| CN113175479A (en) * | 2021-04-30 | 2021-07-27 | 清华大学 | Protective bearing with self-centering function for vertical magnetic bearing rack |
| CN214603817U (en) * | 2021-01-12 | 2021-11-05 | 吉林省力科科技有限公司 | Sand blasting equipment for metal surface machining |
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2021
- 2021-12-21 CN CN202111592511.3A patent/CN114211400A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186889A1 (en) * | 2004-02-20 | 2005-08-25 | Mcneil Gary | Wheel polishing device |
| CN209850703U (en) * | 2018-12-11 | 2019-12-27 | 叶春梅 | Novel sand blasting machine |
| CN112824046A (en) * | 2019-11-20 | 2021-05-21 | 宝山钢铁股份有限公司 | Inner wall combined sand prevention plug for sand blasting of external threads of oil casing and anti-blocking method thereof |
| CN214603817U (en) * | 2021-01-12 | 2021-11-05 | 吉林省力科科技有限公司 | Sand blasting equipment for metal surface machining |
| CN113175479A (en) * | 2021-04-30 | 2021-07-27 | 清华大学 | Protective bearing with self-centering function for vertical magnetic bearing rack |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115430240A (en) * | 2022-09-13 | 2022-12-06 | 南京宏亚建设集团有限公司 | Dust device for building engineering |
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Application publication date: 20220322 |