CN111042995B - Self-driven offshore wind power bearing salt spray prevention device - Google Patents
Self-driven offshore wind power bearing salt spray prevention device Download PDFInfo
- Publication number
- CN111042995B CN111042995B CN201911405521.4A CN201911405521A CN111042995B CN 111042995 B CN111042995 B CN 111042995B CN 201911405521 A CN201911405521 A CN 201911405521A CN 111042995 B CN111042995 B CN 111042995B
- Authority
- CN
- China
- Prior art keywords
- impeller
- main shaft
- semi
- closed cover
- gear box
- 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
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/95—Preventing corrosion
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a self-driven salt fog preventing device for an offshore wind power bearing. The anti-salt fog structure is arranged at the flange end of a main shaft close to a hub, the end of the main shaft close to a gear box, the end of a high-speed output shaft close to the gear box and the end of a high-speed output shaft close to a generator of a fan, an impeller is coaxially and fixedly sleeved on the main shaft close to a bearing seat/shell, a semi-closed cover is arranged outside the impeller, one end of the outer ring of the semi-closed cover is fixedly connected to the bearing seat/shell, the other end of the outer ring of the semi-closed cover crosses the impeller and then; a through hole is formed in one side of the semi-closed cover, which is far away from the bearing seat/shell; the impeller blows air into the through hole to generate air far away from the bearing seat/shell. The invention improves the condition that the service life of the offshore wind power bearing is reduced due to easy salt spray erosion, reduces the cost for replacing the bearing, reduces the time for replacing the bearing when the wind power generator stops, realizes self-driving and does not need an external power source.
Description
Technical Field
The invention relates to an offshore wind turbine salt fog prevention device in the technical field of wind power equipment, in particular to a self-driven offshore wind power bearing salt fog prevention device.
Background
Due to the use of a large amount of non-renewable energy sources such as coal, petroleum and the like and the environmental pollution caused by the non-renewable energy sources, the development and utilization of the clean renewable energy source such as wind energy are increasingly paid more and more attention from various countries.
The utilization technology of wind energy is relatively mature, and a plurality of machine types can be selected on the market. Compared with land wind energy, offshore wind energy resources are richer, the sea area of China is vast, the utilization of offshore wind energy is very important, the situation of electric power shortage in the east coastal area can be effectively improved by developing offshore wind power, and the problem of land long-distance wind power transmission can be solved.
Because the natural environment that offshore wind power was located, salt fog content is big in the sea area air, and the salt particle can be attached to the facility surface, causes the corruption, rusts, can make electric wire line embrittled to inside the salt fog can progressively permeate the bearing through the oil blanket, the salt particle is appeared the back and is very unfavorable to the gyration of bearing, can aggravate the damage of bearing, reduce the bearing life-span, increase offshore wind power and maintain and the cost of changing spare part.
The existing salt spray prevention method comprises the following steps: the air circulating system is additionally provided with an air filtering device, and composite coating and the like are adopted. The salt mist filter is mainly added on the basis of an original air circulation system of a fan cabin, but the cost is high, and a filter screen of the filter needs to be replaced at regular time; the latter only protects the surface of the fan equipment to a certain extent, but like the important sensitive part of the bearing, salt mist also enters through the oil seal to influence the rotation of the bearing, and the bearing cannot be protected practically.
Disclosure of Invention
The invention aims to solve the problem that a bearing is still corroded when the existing offshore wind power is in a high-salt-fog environment, and the problem that the bearing can be practically protected when no device is arranged in existing wind power equipment.
The technical scheme adopted by the invention is as follows:
the top of the fan is provided with a main shaft, a gear box, a high-speed output shaft and a generator; the front end of the main shaft is supported by a main shaft bearing seat close to the flange and is coaxially connected with the blades, the rear end of the main shaft is connected with the front end of a high-speed output shaft through a gear box, and the rear end of the high-speed output shaft is connected with an input shaft of a generator; the four mounting positions are respectively the mounting position of the flange end of the main shaft close to the hub, the mounting position of the main shaft close to the gear box, the mounting position of the high-speed output shaft close to the gear box and the mounting position of the generator input shaft close to the generator.
The mounting position of the flange end of the main shaft close to the hub is positioned between the main shaft and the bearing seat of the main shaft close to the flange, the main shaft and the bearing seat of the main shaft close to the flange are in sealing connection through a sealing ring structure, a first impeller is coaxially and fixedly sleeved on the main shaft close to the bearing seat of the main shaft close to the flange, a first semi-closed cover is arranged outside the first impeller, one end of the outer ring of the first semi-closed cover is fixedly connected to the bearing seat of the main shaft close to the flange, the other end of the first semi-closed cover axially crosses the periphery of the first impeller and then is furled towards the axis of the; a through hole is formed in one axial side face, far away from the flange main shaft bearing seat, of the first semi-closed cover; the first impeller is provided with fan blades, and a wind direction outlet is arranged towards a through hole of the first semi-closed cover, so that wind far away from a bearing seat of the flange main shaft is generated when the main shaft rotates; the mounting position of the main shaft close to the gear box end is positioned between the main shaft and the gear box, the main shaft and the gear box are in sealed connection through a sealing ring structure, a second impeller is coaxially and fixedly sleeved on the main shaft close to the gear box, a second semi-closed cover is arranged outside the second impeller, one end of the outer ring of the second semi-closed cover is fixedly connected to the gear box, the other end of the second semi-closed cover axially crosses the outer periphery of the second impeller and then is folded and arranged towards the axis of the main shaft along the radial direction to form an inner ring, and a gap is formed between the inner ring of the; the second semi-closed cover is provided with a through hole on one axial side surface far away from the gear box; the second impeller also adopts fan blades, and a wind direction outlet is arranged towards the through hole of the second semi-closed cover, so that wind far away from the gear box is generated when the main shaft rotates; the semi-closed cover and the impeller form a salt fog prevention structure.
The main shaft between the first impeller and the second impeller is sleeved with a sleeve, and the two ends of the sleeve are respectively provided with a first check ring and a second check ring between the first impeller and the second impeller.
The sleeve is in interference fit with the main shaft.
The mounting position of the high-speed output shaft close to the gear box is positioned between the high-speed output shaft and the gear box, the high-speed output shaft and the gear box are in sealed connection through a sealing ring structure, a third impeller is coaxially and fixedly sleeved on the high-speed output shaft near the gear box, a third semi-closed cover is arranged outside the third impeller, one end of the outer ring of the third semi-closed cover is fixedly connected onto the gear box, the other end of the third semi-closed cover axially crosses the outer periphery of the third impeller and then is furled and arranged towards the axis of the high-speed output shaft along the radial direction to form an inner ring, and a gap; the third semi-closed cover is provided with a through hole on the peripheral surface; the third impeller adopts straight blades, and a wind direction outlet is arranged towards the through hole of the third semi-closed cover, so that wind far away from the gear box and the high-speed output shaft is generated when the main shaft rotates;
the mounting position of the high-speed output shaft near the generator end is positioned between the high-speed output shaft and the generator, the high-speed output shaft and the generator are in sealed connection through a sealing ring structure, a fourth impeller is coaxially and fixedly sleeved on the high-speed output shaft near the generator, a fourth semi-closed cover is arranged outside the fourth impeller, one end of the outer ring of the fourth semi-closed cover is fixedly connected to the generator, the other end of the fourth semi-closed cover axially crosses the periphery of the fourth impeller and then is furled and arranged towards the axis of the high-speed output shaft along the radial direction to form an inner ring, and a gap is formed between the inner ring; the fourth semi-closed cover is provided with a through hole on the peripheral surface; the fourth impeller adopts straight blades and a wind direction outlet faces to the through hole of the fourth semi-closed cover, so that wind far away from the generator and the input shaft of the generator is generated when the main shaft rotates.
Therefore, the salt fog prevention structure mainly composed of the impeller and the semi-closed cover is arranged at the flange end of the main shaft close to the hub, the end of the main shaft close to the gear box, the end of the high-speed output shaft close to the gear box and the end of the high-speed output shaft close to the generator; the impellers are coaxially arranged on the main shaft and the high-speed output shaft, so that the impellers rotate along with the shaft, an external power source is not needed, self-driving is realized, and the semi-closed cover is fixedly connected to the bearing block or the end cover of the shell.
The impeller is divided into two semicircular parts, and the two semicircular parts are sleeved on the shaft and then are connected and fastened through bolts.
The impeller is made of aluminum alloy.
The outer surfaces of the main shaft, the gear box, the high-speed output shaft, the generator and the salt fog prevention structure are coated with salt fog prevention composite coating.
The first semi-closed cover and the second semi-closed cover which are arranged at the main shaft are designed to be conical, and the third semi-closed cover and the fourth semi-closed cover which are arranged at the high-speed output shaft are designed to be straight-tube-shaped.
The first impeller and the second impeller which are arranged at the main shaft are designed into fan blades, and the third impeller and the fourth impeller which are arranged at the high-speed output shaft are designed into straight blades. The main shaft has low rotating speed, and the fan blades can be used for increasing the flowing range and speed of air; the rotating speed of the high-speed output shaft is high, the moment acted on the shaft by the rotational inertia of the straight blades is relatively reduced, and the service life of the shaft is relatively prolonged.
The invention has the beneficial effects that:
the device of the invention can realize self-driving without additionally increasing a power source, does not need additionally increasing a flat cable, and does not increase line pressure.
The invention improves the condition that the offshore wind power bearing cannot be practically protected and is easy to be corroded by salt fog to cause the reduction of the service life, reduces the cost for replacing the bearing and reduces the time for replacing the bearing when the wind driven generator is shut down.
Drawings
Fig. 1 is a schematic view of the present invention in various installation positions on the top of a blower.
Fig. 2 is a schematic view of the installation of the device at the installation position 1 of the main shaft near the flange end of the hub.
Fig. 3 is a schematic view of the installation of the device at the installation position 2 of the main shaft near the gear box end.
Fig. 4 is a schematic view of the installation of the high speed output shaft near the gear box end installation position 3.
Fig. 5 is a schematic view of the installation of the high-speed output shaft near the generator end installation position 4.
In the figure: the structure comprises a main shaft near hub flange end mounting position 1, a main shaft near gear box end mounting position 2, a high-speed output shaft near gear box end mounting position 3, a high-speed output shaft near generator end mounting position 4, a main shaft 5, a gear box (namely a gear box shell) 6, a high-speed output shaft 7, a generator 8, a flange-near main shaft bearing seat (namely a bearing seat shell in figure 2) 9, a flange-near main shaft bearing seat bearing 10, a sleeve 11, a first impeller 12, a first semi-closed cover 13, a first retainer ring 14, a gear box front bearing 15, a second impeller 16, a second semi-closed cover 17, a second retainer ring 18, a gear box rear bearing 19, a third impeller 20, a third semi-closed cover 21, a generator front bearing 22, a fourth impeller 23, a fourth semi-closed cover 24 and a generator input shaft 25.
Detailed Description
The solution provided by the present invention is further explained below in connection with a "two-point" support bearing distribution.
As shown in fig. 1, the fan is a "two-point" fan with support bearings, one bearing at each end of the main shaft is fixed, and the other bearing is axially floating. The top of the fan is provided with a main shaft 5, a gear box 6, a high-speed output shaft 7 and a generator 8; the front end of a main shaft 5 is supported by a main shaft bearing seat 9 close to a flange and is coaxially connected with blades, the rear end of the main shaft 5 is connected with the front end of a high-speed output shaft 7 through a gear box 6, and the rear end of the high-speed output shaft 7 is connected with an input shaft of a generator 8; the front end and the rear end of the main shaft 5 and the high-speed output shaft 7 are respectively provided with a mounting position of a salt fog prevention structure, the mounting positions are provided with the salt fog prevention structures, and the four mounting positions are respectively a flange end mounting position 1 of the main shaft close to a hub, a gear box end mounting position 2 of the main shaft, a gear box end mounting position 3 of the high-speed output shaft and a generator end mounting position 4 of the high-speed output shaft.
As shown in fig. 2, the mounting position 1 of the flange end of the main shaft near the hub is located between the main shaft 5 and the main shaft bearing seat 9 near the flange, the main shaft 5 and the blade bearing seat 9 are movably sleeved through the blade bearing seat bearing 10, meanwhile, the main shaft 5 and the main shaft bearing seat 9 near the flange are hermetically connected through a sealing ring structure, a first impeller 12 is coaxially and fixedly sleeved on the main shaft 5 near the main shaft bearing seat 9 near the flange, a first semi-closed cover 13 is arranged outside the first impeller 12, one end of the outer ring of the first semi-closed cover 13 is fixedly connected to the main shaft bearing seat 9 near the flange, the other end of the first semi-closed cover 13 axially crosses the outer periphery of the first impeller 12 and then is folded and arranged radially towards the axis of the main shaft 5 to form an; a plurality of through holes are formed in one axial side face, far away from the flange main shaft bearing seat 9, of the first semi-closed cover 13 and used for ventilation; the first impeller 12 is a fan blade and the wind outlet is arranged towards the through hole of the first semi-closed cover 13, so that the main shaft generates wind far away from the near flange main shaft bearing seat 9 when rotating.
Air enters the first semi-closed cover 13 through a gap between the inner ring of the first semi-closed cover 13 and the main shaft 5, is blown by the rotation of the first impeller 12 and flows out of a through hole of the first semi-closed cover 13, as shown by an arrow in fig. 2, so that the air passing through the blade bearing seat bearing 10 and the oil seal of the main shaft 5 is thinner, namely the air at the seal ring is thinner, and the penetration of salt mist to the bearing after passing through the seal ring is weakened.
As shown in fig. 3, the mounting position 2 of the main shaft near the gear box end is located between the main shaft 5 and the gear box 6, the main shaft 5 and the gear box 6 are movably sleeved through a front bearing 15 of the gear box, meanwhile, the main shaft 5 and the gear box 6 are hermetically connected through a sealing ring structure, a second impeller 16 is coaxially and fixedly sleeved on the main shaft 5 near the gear box 6, a second semi-closed cover 17 is arranged outside the second impeller 16, one end of an outer ring of the second semi-closed cover 17 is fixedly connected to a shell of the gear box 6, the other end of the second semi-closed cover 17 axially crosses over the outer periphery of the second impeller 16 and then is folded and arranged radially towards the axis of the main shaft 5 to form an inner ring, and a gap is; the second semi-closed cover 17 is provided with a plurality of through holes on one axial side surface far away from the gear box 6 for ventilation; the second impeller 16 also adopts fan blades and the wind outlet is arranged towards the through hole of the second semi-closed cover 17, so that the main shaft generates wind far away from the gear box 6 when rotating.
Air enters the second semi-closed cover 17 through a gap between the inner ring of the second semi-closed cover 17 and the main shaft 5, is blown by the rotation of the second impeller 16 and flows out of a through hole of the second semi-closed cover 17, as shown by an arrow in figure 3, so that the air passing through the oil seal of the front bearing 15 of the gear box and the main shaft 5 is thinner, namely the air at the seal ring is thinner, and the penetration of salt fog into the bearing after passing through the seal ring is weakened.
The sleeve 11 is sleeved on the main shaft 5 between the first impeller 12 and the second impeller 16, the sleeve 11 is in interference fit with the main shaft 5, so that the sleeve 11 can also axially fix the impellers, and the first retaining ring 14 and the second retaining ring 18 are respectively arranged between the two ends of the sleeve 11 and the first impeller 12 and the second impeller 16, so that damage to the device and the main shaft 5 when impact is generated on the hub by wind power can be reduced.
The semi-closed cover body of the main shaft is conical and is fixedly connected to the shell of the bearing seat through screws, so that the relative stability of the cover body is ensured, the central part of the cover body is not contacted with the sleeve, the sleeve is not abraded, and air can enter the cover body through a gap.
As shown in fig. 4, the mounting position 3 of the high-speed output shaft near the gear box end is located between the high-speed output shaft 7 and the gear box 6, the high-speed output shaft 7 and the gear box 6 are movably sleeved through a gear box rear bearing 19, meanwhile, the high-speed output shaft 7 and the gear box 6 are hermetically connected through a seal ring structure, a third impeller 20 is coaxially and fixedly sleeved on the high-speed output shaft 7 near the gear box 6, a third semi-closed cover 21 is arranged outside the third impeller 20, one end of an outer ring of the third semi-closed cover 21 is fixedly connected to a shell of the gear box 6, the other end of the third semi-closed cover 21 axially crosses the outer periphery of the third impeller 20 and then is furled towards the axis of the high-speed output shaft 7 along the radial direction; the third semi-closed cover 21 is provided with a plurality of through holes on the outer circumferential surface for ventilation; the third impeller 20 adopts straight blades and the wind direction outlet is arranged towards the through hole of the third semi-closed cover 21, so that when the high-speed output shaft 7 rotates, wind far away from the high-speed output shaft 7 and the rear bearing 19 of the gear box is generated, namely, air flow towards the periphery outwards in the radial direction is generated.
Air enters the third semi-closed cover 21 through a gap between the inner ring of the third semi-closed cover 21 and the high-speed output shaft 7, is blown by the rotation of the third impeller 20 and flows out of a through hole of the third semi-closed cover 21, as shown by an arrow in fig. 4, so that the air passing through the oil seal of the front bearing 15 of the gear box and the high-speed output shaft 7 is thinner, namely the air at the seal ring is thinner, and the penetration of salt fog into the bearing after passing through the seal ring is weakened.
As shown in fig. 5, the mounting position 4 of the high-speed output shaft near the generator end is located between the generator input shaft 25 and the generator 8, the high-speed output shaft 7 and the generator 8 are movably sleeved through the generator front bearing 22, meanwhile, the generator input shaft 25 and the generator 8 are hermetically connected through a sealing ring structure, a fourth impeller 23 is coaxially and fixedly sleeved on the generator input shaft 25 near the generator 8, a fourth semi-closed cover 24 is arranged outside the fourth impeller 23, one end of an outer ring of the fourth semi-closed cover 24 is fixedly connected to a housing of the generator 8, the other end of the fourth semi-closed cover 24 axially passes through the outer periphery of the fourth impeller 23 and then is furled towards the axis of the generator input shaft 25 along the radial direction to form an inner ring, and a gap is formed between the inner ring of the fourth semi-; the fourth semi-enclosed cover 24 is provided with a plurality of through holes on the outer circumferential surface for ventilation; the fourth impeller 23 is a straight blade and the wind outlet is arranged towards the through hole of the fourth semi-closed cover 24, so that when the main shaft rotates, wind far away from the generator front bearing 22 and the generator input shaft 25 is generated, namely, air flow towards the radial outside periphery is generated.
Air enters the fourth semi-closed cover 24 through a gap between the inner ring of the fourth semi-closed cover 24 and the high-speed output shaft 7, is blown by the rotation of the fourth impeller 23 and flows out of a through hole of the fourth semi-closed cover 24, as shown by an arrow in fig. 5, so that the air passing through the oil seal of the generator front bearing 22 and the high-speed output shaft 7 is thinner, namely the air at the seal ring is thinner, and the penetration of salt fog into the bearing after passing through the seal ring is weakened.
The semi-closed cover of the high-speed output shaft is in a straight cylinder shape, is fixedly connected to the gear box shell through screws, and the central part of the semi-closed cover is not contacted with the high-speed shaft, so that the abrasion of the cover body and the shaft is avoided, the upper end of the semi-closed cover body is provided with a hole, air flows out to the upper end, the air amount in the whole cavity is reduced, and the salt spray content in the semi-closed cover body is reduced.
In specific implementation, the impeller is divided into two semicircular parts which are designed into a split type, and the two semicircular parts are sleeved on the shaft and then are connected and fastened through bolts.
In specific implementation, the impeller is made of light metal, such as aluminum alloy, so that the rotational inertia is reduced, the burden on a shaft is reduced, and the impeller is convenient to operate during installation.
In the specific implementation, the surface salt fog preventing composite coating for preventing salt fog is coated on the surfaces of various mechanisms and parts of the device, so that the service life of the device is prolonged, the replacement frequency is reduced, and the cost is reduced.
As can be seen from the above detailed description of the present invention, the technical solution of the present invention can weaken the erosion of salt fog to the offshore wind power bearing, can prolong the service life of the bearing, reduce the cost, and is convenient to install.
Claims (7)
1. A self-driven offshore wind power bearing salt fog prevention device is characterized in that a main shaft (5), a gear box (6), a high-speed output shaft (7) and a generator (8) are arranged at the top of a fan; the front end of a main shaft (5) is supported by a near-flange main shaft bearing seat (9) and is coaxially connected with blades, the rear end of the main shaft (5) is connected with the front end of a high-speed output shaft (7) through a gear box (6), and the rear end of the high-speed output shaft (7) is connected with an input shaft of a generator (8); the method is characterized in that: mounting positions of salt fog preventing structures are arranged at the front end and the rear end of a main shaft (5), a high-speed output shaft (7) and a generator input shaft (25), the salt fog preventing structures are arranged at the mounting positions, and the four mounting positions are a main shaft flange end mounting position (1), a main shaft gear box end mounting position (2), a high-speed output shaft gear box end mounting position (3) and a generator input shaft (25) generator end mounting position (4) respectively;
the mounting position (1) of the flange end of the main shaft close to the hub is positioned between the main shaft (5) and a main shaft bearing seat (9) close to the flange, the main shaft (5) and the main shaft bearing seat (9) close to the flange are in sealing connection through a sealing ring structure, a first impeller (12) is coaxially and fixedly sleeved on the main shaft (5) close to the main shaft bearing seat (9) close to the flange, a first semi-closed cover (13) is arranged outside the first impeller (12), one end of the outer ring of the first semi-closed cover (13) is fixedly connected to the main shaft bearing seat (9) close to the flange, the other end of the first semi-closed cover (13) axially crosses the outer periphery of the first impeller (12) and then is folded and arranged towards the axis of the main shaft (5) along the radial direction to form an inner ring; a through hole is formed in one axial side face, far away from a near flange main shaft bearing seat (9), of the first semi-closed cover (13); the first impeller (12) adopts fan blades, and a wind direction outlet is arranged towards a through hole of the first semi-closed cover (13), so that wind far away from a flange main shaft bearing seat (9) is generated when the main shaft rotates; the main shaft is close to the installation position (2) of the gear box end and is positioned between the main shaft (5) and the gear box (6), the main shaft (5) is in sealing connection with the gear box (6) through a sealing ring structure, a second impeller (16) is coaxially and fixedly sleeved on the main shaft (5) near the gear box (6), a second semi-closed cover (17) is arranged outside the second impeller (16), one end of the outer ring of the second semi-closed cover (17) is fixedly connected to the gear box (6), the other end of the second semi-closed cover (17) axially crosses the outer periphery of the second impeller (16) and then is furled towards the axis of the main shaft (5) along the radial direction to form an inner ring, and a gap is formed between the inner ring of the second semi-closed cover (17) and; a through hole is formed in one axial side surface, far away from the gear box (6), of the second semi-closed cover (17); the second impeller (16) also adopts fan blades and a wind direction outlet is arranged towards the through hole of the second semi-closed cover (17), so that the main shaft generates wind far away from the gear box (6) when rotating; a sleeve (11) is sleeved on the main shaft (5) between the first impeller (12) and the second impeller (16), and a first retaining ring (14) and a second retaining ring (18) are respectively arranged between the two ends of the sleeve (11) and the first impeller (12) and the second impeller (16);
the mounting position (3) of the high-speed output shaft close to the gear box end is positioned between the high-speed output shaft (7) and the gear box (6), the high-speed output shaft (7) is in sealing connection with the gear box (6) through a sealing ring structure, a third impeller (20) is coaxially and fixedly sleeved on the high-speed output shaft (7) near the gear box (6), a third semi-closed cover (21) is arranged outside the third impeller (20), one end of the outer ring of the third semi-closed cover (21) is fixedly connected to the gear box (6), the other end of the third semi-closed cover (21) axially crosses the outer periphery of the third impeller (20) and then is furled and arranged towards the axis of the high-speed output shaft (7) along the radial direction to form an inner ring, and a gap is formed between the inner ring of; the third semi-closed cover (21) is provided with a through hole on the peripheral surface; the third impeller (20) adopts straight blades, and a wind direction outlet faces to a through hole of the third semi-closed cover (21), so that wind far away from the gear box (6) and the high-speed output shaft (7) is generated when the main shaft rotates;
the mounting position (4) of the high-speed output shaft close to the generator end is positioned between the high-speed output shaft (7) and the generator (8), the high-speed output shaft (7) is connected with the generator (8) in a sealing mode through a sealing ring structure, a fourth impeller (23) is coaxially and fixedly sleeved on the high-speed output shaft (7) near the generator (8), a fourth semi-closed cover (24) is arranged outside the fourth impeller (23), one end of the outer ring of the fourth semi-closed cover (24) is fixedly connected to the generator (8), the other end of the fourth semi-closed cover (24) axially crosses the outer periphery of the fourth impeller (23) and then is furled and arranged towards the axis of the high-speed output shaft (7) along the radial direction to form an inner ring, and a gap is formed between the inner ring of the fourth semi; the fourth semi-closed cover (24) is provided with a through hole on the peripheral surface; the fourth impeller (23) adopts straight blades and a wind direction outlet is arranged towards the through hole of the fourth semi-closed cover (24), so that wind far away from the generator (8) and the generator input shaft (25) is generated when the main shaft rotates.
2. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the sleeve (11) is in interference fit with the main shaft (5).
3. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the first impeller (12), the second impeller (16), the third impeller (20) and the fourth impeller (23) are divided into two semicircular parts, and the two semicircular parts are sleeved on the shaft and then fastened through bolts.
4. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the first impeller (12), the second impeller (16), the third impeller (20) and the fourth impeller (23) are all made of aluminum alloy.
5. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the outer surfaces of the main shaft (5), the gear box (6), the high-speed output shaft (7), the generator (8) and the salt fog prevention structure are coated with salt fog prevention composite coating.
6. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the first semi-closed cover (13) and the second semi-closed cover (17) which are arranged at the main shaft (5) are designed to be conical, and the third semi-closed cover (21) and the fourth semi-closed cover (24) which are arranged at the high-speed output shaft (7) are designed to be straight-tube-shaped.
7. The self-propelled offshore wind power bearing salt spray prevention device of claim 1, characterized in that: the first impeller (12) and the second impeller (16) mounted at the main shaft (5) are designed as fan blades, and the third impeller (20) and the fourth impeller (23) mounted at the high-speed output shaft (7) are designed as straight blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911405521.4A CN111042995B (en) | 2019-12-30 | 2019-12-30 | Self-driven offshore wind power bearing salt spray prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911405521.4A CN111042995B (en) | 2019-12-30 | 2019-12-30 | Self-driven offshore wind power bearing salt spray prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111042995A CN111042995A (en) | 2020-04-21 |
| CN111042995B true CN111042995B (en) | 2020-11-24 |
Family
ID=70242212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911405521.4A Active CN111042995B (en) | 2019-12-30 | 2019-12-30 | Self-driven offshore wind power bearing salt spray prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111042995B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201714586U (en) * | 2010-07-20 | 2011-01-19 | 中船重工(重庆)海装风电设备有限公司 | Offshore wind power generation system |
| CN202493385U (en) * | 2011-12-23 | 2012-10-17 | 广东东兴风盈风电设备制造有限公司 | Wind wheel of wind driven generator |
| CN202645883U (en) * | 2012-05-22 | 2013-01-02 | 广东明阳风电产业集团有限公司 | Wind driven generator set main machine for ocean intertidal zone |
| CN104165119A (en) * | 2014-08-09 | 2014-11-26 | 常州市武进华瑞电子有限公司 | Protective type wind turbine |
| CN105020265A (en) * | 2015-08-06 | 2015-11-04 | 国电联合动力技术有限公司 | Pitch bearing of wind turbine generator and anti-corrosion processing method of pitch bearing |
| CN107269472A (en) * | 2017-07-10 | 2017-10-20 | 佛山科学技术学院 | A kind of Wind turbines of floating drum and its manufacture method and the application floating drum |
| CN208366809U (en) * | 2018-06-21 | 2019-01-11 | 宁波大学 | A kind of salt air corrosion device on rolling contact fatigue-testing machine |
| CN208458339U (en) * | 2018-06-22 | 2019-02-01 | 中国电器科学研究院有限公司 | A kind of intelligent anticorrosion equipment of salt fog purification |
| CN108999754A (en) * | 2018-09-26 | 2018-12-14 | 大连君方科技有限公司 | A kind of anticorrosive offshore wind farm unit and anticorrosive method |
| CN110079140B (en) * | 2019-04-30 | 2020-10-02 | 中山大学 | Intelligent response self-repairing anticorrosive coating material and preparation method thereof |
-
2019
- 2019-12-30 CN CN201911405521.4A patent/CN111042995B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111042995A (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2461468C (en) | Generator for a hydro-electric station | |
| US20170030335A1 (en) | Drive system of a wind turbine | |
| CN108301970B (en) | Yaw system of wind generating set | |
| CN104595099A (en) | Integrated tide energy power generation device | |
| CN105035295B (en) | Rudder paddle shaft installs all-in-one | |
| CN102979668A (en) | Window opening type wind wheel of wind driven generator | |
| CN111042995B (en) | Self-driven offshore wind power bearing salt spray prevention device | |
| CN101839221B (en) | Novel vertical-axis megawatt wind power generation driving system | |
| CN201739086U (en) | Megawatt direct-drive low-speed permanent magnet wind driven generator | |
| CN110829720B (en) | Medium-speed permanent magnet wind driven generator structure | |
| KR20120127013A (en) | Windmill | |
| CN205937000U (en) | Aerogenerator magnetic coupling bearing system | |
| CN207814030U (en) | Auxiliary blower | |
| CN206092271U (en) | Bulb tubular turbine hydroelectric set sympodium holds prevents getting rid of oily structure | |
| CN202493385U (en) | Wind wheel of wind driven generator | |
| CN204553077U (en) | A kind of marine tidal-current energy generator group containing assembling compensator | |
| CN111472935A (en) | Offshore wind driven generator with high power generation efficiency | |
| CN207647690U (en) | Without the medium-sized off-net wind-driven generator of automatically controlled turbine type | |
| CN216241057U (en) | Labyrinth type rotary sealing structure for wind turbine generator | |
| CN108361146A (en) | A kind of half direct-drive type marine tidal-current energy set drive chain and the marine tidal-current energy unit including it | |
| CN205013340U (en) | Electric locomotive traction motor cooling axial centrifugal fan | |
| CN216617782U (en) | Rotating shaft stop ring for wind driven generator | |
| CN101235804B (en) | Coaxial multi- rotor super big wind generation device | |
| CN213711418U (en) | Centrifugal ventilator impeller capable of improving efficiency of fan | |
| CN218920131U (en) | Double-output-shaft outer rotor axial flow motor and fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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 |