CN210461399U - Permanent magnet auxiliary support type water lubrication bearing and ocean transportation equipment - Google Patents
Permanent magnet auxiliary support type water lubrication bearing and ocean transportation equipment Download PDFInfo
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- CN210461399U CN210461399U CN201920936149.9U CN201920936149U CN210461399U CN 210461399 U CN210461399 U CN 210461399U CN 201920936149 U CN201920936149 U CN 201920936149U CN 210461399 U CN210461399 U CN 210461399U
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Abstract
The utility model discloses a permanent magnetism auxiliary stay type water lubricated bearing and ocean transportation equipment, permanent magnetism auxiliary stay type water lubricated bearing includes: the bearing comprises a bearing shell, a magnet unit, a water lubrication bearing body and a bearing end cover; the bearing shell is of a cylindrical structure; the magnet unit includes a permanent magnet; the magnet unit is arranged in the bearing shell; the water lubrication bearing body is of a cylindrical structure, and a permanent magnet mounting groove is formed in the upper part of the water lubrication bearing body; the water lubrication bearing body is arranged in the bearing shell, and the permanent magnet is arranged in the permanent magnet mounting groove; the bearing end covers are installed at two ends of the bearing shell, and the bearing end covers are connected with two end faces of the water lubrication bearing body in a sealing mode. The utility model discloses permanent magnetism auxiliary stay type water lubricated bearing is fit for moving under the environment that has corrosive liquids, can thoroughly keep apart the liquid that has corrosivity and permanent magnet, has improved the life-span of permanent magnet, can reduce permanent magnet bearing's maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of bearing design, especially, relate to a permanent magnetism suspension bearing that possesses magnet protective structure to and the ocean transportation equipment who utilizes this permanent magnetism suspension bearing is utilized in the installation.
Background
The neodymium iron boron is a permanent magnetic material with better magnetic property at present, is widely applied to the fields of electronic information, electromechanics, instruments, medical instruments and the like, and is the fastest-developing one of the magnetic materials. The neodymium iron boron permanent magnets which are put into practical use at present mainly comprise sintered neodymium iron boron magnets and isotropic bonded neodymium iron boron magnets. The sintered Nd-Fe-B magnet has excellent magnetic performance, and the bonded Nd-Fe-B magnet has good formability and ideal dimensional precision. Both of these magnets have been developed more rapidly due to their unique advantages.
However, since rare earth metal-based permanent magnets contain highly reactive rare earth elements, they are easily oxidized and corroded in the environment. Improving the corrosion resistance of neodymium iron boron magnets can be carried out through two aspects: firstly, the corrosion resistance of the magnet is improved, the chemical activity of the Nd-rich phase can be reduced, an intercrystalline corrosion expansion channel is narrowed, the corrosion current is reduced, and the purpose of reducing the electrochemical corrosion speed is achieved by adding elements and changing the distribution of the Nd-rich phase; secondly, the surface of the magnet is treated, and the corrosion is avoided through the coating. In the field of protective coating on the surface of neodymium iron boron, various protective coating layers such as metal coating, organic coating and the like are developed. For some special working environments, such as the magnet being used in seawater for a long time, the above-mentioned magnet protection method cannot ensure that the magnet is not corroded by seawater during the long-term use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a permanent magnetism auxiliary stay type water lubricated bearing and ocean transportation equipment to solve the easy problem of corroding by the environment of magnet long-term use.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a permanent magnet auxiliary support type water lubricated bearing, comprising: the bearing comprises a bearing shell, a magnet unit, a water lubrication bearing body and a bearing end cover; the bearing shell is of a cylindrical structure; the magnet unit includes a permanent magnet; the magnet unit is arranged in the bearing shell; the water lubrication bearing body is of a cylindrical structure, and a permanent magnet mounting groove is formed in the upper part of the water lubrication bearing body; the water lubrication bearing body is arranged in the bearing shell, and the permanent magnet is arranged in the permanent magnet mounting groove; the bearing end covers are installed at two ends of the bearing shell, and the bearing end covers are connected with two end faces of the water lubrication bearing body in a sealing mode.
The permanent magnet auxiliary support type water lubricated bearing comprises a bearing shell, a permanent magnet auxiliary support type water lubricated bearing body and a bearing seat, wherein the bearing shell is provided with a magnet unit mounting groove; the magnet unit further comprises a magnet mounting seat; the permanent magnet is fixedly arranged on the magnet mounting seat; the magnet unit is installed in a magnet unit installation slot of the bearing housing.
The utility model discloses as above permanent magnetism auxiliary stay type water lubricated bearing, further, still include the sealing washer, the sealing washer sets up between the terminal surface of bearing end cover and water lubricated bearing body.
The utility model discloses as above permanent magnetism auxiliary stay type water lubricated bearing, further, the cross section of permanent magnet is the fan ring structure, the cross section of permanent magnet mounting groove is the fan ring structure.
The permanent magnet auxiliary support type water lubricated bearing is characterized in that the permanent magnet auxiliary support type water lubricated bearing is provided with a bearing shell ear plate and a magnet mounting seat ear plate, wherein the bearing shell ear plate is arranged on the two sides of the bearing shell; the magnet mount is fixedly attached to the bearing housing ear plate with the mount ear plate and the bolt.
The permanent magnet auxiliary support type water lubricating bearing of the utility model further comprises a mounting seat tongue-and-groove formed between the magnet mounting seat and the mounting seat ear plate; the bearing shell is provided with a bearing shell tongue-and-groove at the position of the magnet unit mounting groove, and the mounting seat tongue-and-groove is matched with the bearing shell tongue-and-groove.
The permanent magnet auxiliary supporting type water lubricating bearing is characterized in that the permanent magnet auxiliary supporting type water lubricating bearing is provided with a permanent magnet mounting seat, and the permanent magnet is clamped between the two ribs; the permanent magnet and the convex edges at the two sides are arranged in the permanent magnet mounting groove.
The utility model discloses as above permanent magnetism auxiliary stay type water lubricated bearing, further, still include the magnet baffle, the magnet baffle is installed in the both sides of magnet mount pad, utilizes the bolt with magnet baffle fixed connection to magnet mount pad.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a marine transportation device, wherein a propeller propulsion shaft of the marine transportation device is provided with a permanent magnet auxiliary support type water lubrication bearing; a copper sleeve is arranged outside the propeller propulsion shaft, a shaft sleeve made of a magnetic conductive material is arranged outside the copper sleeve, and a connecting key is arranged between the shaft sleeve and the copper sleeve; or the propeller propulsion shaft is made of a magnetic conductive material, and an anti-corrosion coating is coated on the outer portion of the propeller propulsion shaft.
The utility model discloses as above ocean transportation equipment, it is further, lubricated bearing body structure as an organic whole or components of a whole that can function independently structure of water, when lubricated bearing body is components of a whole that can function independently structure of water, the faying face setting of lubricated bearing body of water is in the below of permanent magnet mounting groove.
The permanent magnet auxiliary support type water lubricating bearing is suitable for running in an environment with corrosive liquid, and the bearing end cover is hermetically connected with other parts of equipment during installation; the water lubrication bearing body and the bearing end cover form a liquid isolation layer, corrosive liquid can be thoroughly isolated from the permanent magnet, the service life of the permanent magnet is prolonged, and the maintenance cost of the permanent magnet bearing can be reduced. Simultaneously, because the setting of permanent magnet can provide ascending magnetic attraction to the axle that sets up at water lubricated bearing body, reduces the pressure of pivot to water lubricated bearing body, and then improves the life of water lubricated bearing body.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:
FIG. 1 is a schematic view of an embodiment of a permanent magnet assisted bearing type water lubricated bearing;
FIG. 2 is an axial cross-sectional view of an embodiment of a permanent magnet assisted support type water lubricated bearing;
FIG. 3 is an axial cross-sectional view of an embodiment of a permanent magnet assisted support type water lubricated bearing;
FIG. 4 is a schematic radial cross-sectional view of an embodiment of a permanent magnet assisted support type water lubricated bearing;
FIG. 5 is a schematic radial cross-sectional view of an embodiment of a permanent magnet assisted support type water lubricated bearing;
FIG. 6 is a schematic view of an upper housing and permanent magnets of an embodiment of the present invention;
fig. 7 is a schematic view of a water-lubricated bearing body according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the bearing comprises a bearing shell, 2, a water-lubricated bearing body, 3, a permanent magnet, 4, a sealing ring, 5, a propeller propulsion shaft, 6, a bearing end cover, 7, a magnet baffle, 8, a bolt, 9, a magnet mounting seat, 11, a bearing shell lug plate, 12, a bearing shell groove and tongue, 21, a permanent magnet mounting groove, 22, a shaft hole, 51, a copper sleeve, 52, a shaft sleeve, 53, a key, 91, a mounting seat groove and tongue, 92, a convex edge, 93 and a mounting seat lug plate.
Detailed Description
Hereinafter, embodiments of the permanent magnet auxiliary support type water lubricated bearing and the marine transport apparatus of the present invention will be described with reference to the accompanying drawings.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
The utility model relates to a permanent magnetism auxiliary stay type water lubricated bearing of embodiment includes: the bearing comprises a bearing shell 1, a magnet unit, a water lubrication bearing body 2 and a bearing end cover 6; the bearing shell 1 is a cylindrical structure; the magnet unit includes a permanent magnet 3; the magnet unit is mounted in the bearing housing 1; the water lubrication bearing body 2 is of a cylindrical structure, and a permanent magnet mounting groove 21 is formed in the upper portion of the water lubrication bearing body 2; the water lubrication bearing body 2 is arranged in the bearing shell 1, and the permanent magnet 3 is arranged in the permanent magnet mounting groove 21; the bearing end covers 6 are arranged at two ends of the bearing shell 1, and the bearing end covers 6 are connected with two end faces of the water lubrication bearing body 2 in a sealing mode.
In the water lubricated bearing body according to the above embodiment of the present invention, the permanent magnet mounting groove is provided at the upper portion of the water lubricated bearing body 2, and the mounting groove is used for mounting the magnet unit, as shown in fig. 7, the magnet mounting groove does not penetrate through the inner wall of the water lubricated bearing body, that is, the radial depth of the magnet mounting groove is smaller than the radial thickness of the water lubricated bearing body; wrapping the magnet unit between the water lubricated bearing and the bearing housing by using the magnet mounting groove according to the structure; and the sealing isolation of the magnet unit is realized through the sealing between the bearing end cover and the water lubrication bearing body, and the magnet unit is isolated from the water lubrication bearing body, so that corrosive liquid (such as seawater) is prevented from entering and contacting the magnet unit through the shaft and the water lubrication bearing body, and the service life of the magnet unit is prolonged. The utility model discloses the water lubricated bearing body and the bearing housing of above-mentioned embodiment ingenious utilization utilize the combination of the two to the magnet unit realized parcel and sealed.
Fig. 1 to 5 show a permanent magnet auxiliary support type water lubricated bearing according to a second embodiment of the present invention, which includes: the bearing comprises a bearing shell 1, a magnet unit, a water lubrication bearing body 2 and a bearing end cover 6;
the bearing shell 1 is of a cylindrical structure, and a magnet unit mounting groove is formed in the upper part of the bearing shell 1; in the embodiment as shown in fig. 1, the magnet unit mounting groove may be made in such a manner that the entire metal cylinder is cut in a radial direction at a position spaced apart from both end portions, for example, by a depth of half the diameter, and then cut in an axial direction, and the cut-away portion is removed to form the magnet unit mounting groove;
as shown in fig. 6, the magnet unit includes a permanent magnet 3 and a magnet mount 9; the permanent magnet 3 is fixedly arranged on the magnet mounting seat 9; the magnet unit is arranged in a magnet unit mounting groove of the bearing shell 1; as shown in fig. 5, the cross section of the permanent magnet 3 is a fan-ring structure; the magnet mounting seat is arranged to facilitate the mounting and positioning of a plurality of permanent magnets, the permanent magnets are fixed to the magnet mounting seat to form an integral part for assembly, and the problems that a plurality of permanent magnets are difficult to mount, position and maintain and disassemble in a later period are solved;
as shown in fig. 7, the water lubricated bearing body 2 is a cylindrical structure, a permanent magnet mounting groove 21 is arranged at the upper part of the water lubricated bearing body 2, and a shaft hole 22 is arranged inside the water lubricated bearing body 2; the water lubrication bearing body 2 is arranged in the bearing shell 1, and the permanent magnet 3 is at least partially arranged in the permanent magnet mounting groove 21; in a specific embodiment, the cross section of the permanent magnet installation groove 21 is a fan-shaped ring structure and is matched with the cross section of the permanent magnet;
the bearing end covers 6 are installed at two ends of the bearing shell 1, the bearing end covers 6 are connected with two end faces of the water-lubricated bearing body 2 in a sealing mode, for example, sealant is coated between the bearing end covers and the end faces of the water-lubricated bearing body, the bearing end covers are connected with the bearing shell through bolts, and meanwhile the bearing end covers and the end faces of the water-lubricated bearing body are tightly attached and sealed.
The permanent magnet auxiliary support type water lubricating bearing of the embodiment of the utility model is suitable for running in an environment with corrosive liquid, and the bearing end cover is hermetically connected with other parts of equipment during installation; the water lubrication bearing body 2 and the bearing end cover 6 form a liquid isolation layer, corrosive liquid (such as seawater) can be thoroughly isolated from the permanent magnet, the service life of the permanent magnet is prolonged, and the maintenance cost of the permanent magnet bearing can be reduced. Simultaneously, because the setting of permanent magnet can provide ascending magnetic attraction (axle self sets up the cover that ferromagnetic material made for ferromagnetic material or the outside of axle) to the axle that sets up in water lubricated bearing body, reduces the pressure of pivot to water lubricated bearing body, and then improves the life of water lubricated bearing body.
The utility model discloses as above permanent magnetism auxiliary stay type water lubricated bearing embodiment can also carry out following further improvement, and permanent magnetism axle still includes sealing washer 4, and sealing washer 4 sets up between bearing end cover 6 and water lubricated bearing body 2's terminal surface. Utilize the sealing washer can further improve the sealed effect between bearing end cover 6 and the lubricated bearing body 2 of water, avoid corrosive liquids to have the hookup location to leak and enter into the permanent magnet, cause the corruption of permanent magnet.
The embodiment of the permanent magnet auxiliary support type water-lubricated bearing can be further improved as follows, the permanent magnet auxiliary support type water-lubricated bearing further comprises magnet baffles 7, the magnet baffles 7 are arranged on two sides of the magnet mounting seat 9, and the magnet baffles 7 are fixedly connected to the magnet mounting seat 9 by bolts 8; as shown in fig. 6, the magnet baffle and the permanent magnet are also respectively provided with a connecting hole; the magnet baffle and the permanent magnet are penetrated by a common bolt to be connected into an integral structure; in addition, bearing shell lugs 11 are arranged on two sides of the bearing shell 1, and a mounting lug 93 is arranged on the magnet mounting seat 9; the magnet mount 9 is fixedly attached to the bearing housing ear plate 11 by means of the mount ear plate 93 and the bolt 8. With the above structure, the magnet unit can be detachably mounted to the bearing housing, solving the problem of difficulty in magnetic steel maintenance and replacement.
The embodiment of the permanent magnet auxiliary support type water-lubricated bearing can be further improved as follows, wherein a mounting seat tongue-and-groove 91 is formed between the magnet mounting seat 9 and the mounting seat ear plate 93; the bearing housing 1 is provided with a bearing housing groove 12 at the position of the magnet unit mounting groove, and the mounting seat groove 91 is matched with the bearing housing groove 12. With the above structure, the bearing housing and the magnet mounting seat can be prevented from being displaced in the radial direction.
The utility model discloses as above permanent magnetism auxiliary stay type water lubricated bearing embodiment can also carry out following further improvement, and the inner wall of magnet mount pad 9 sets up two beads 92, and bead 92 presss from both sides permanent magnet 3 at its middle part. The permanent magnet and the ribs at both sides are installed in the permanent magnet installation groove 21. The blocking force provided by the convex ribs is used for preventing the lateral movement of the permanent magnet. Meanwhile, the water-lubricated bearing body can be circumferentially positioned by using the magnet mounting seat by being mounted in the above mode, and the water-lubricated bearing body is prevented from rotating around the axis.
Marine transportation equipment such as ships and submarines need to be provided with propeller propulsion shafts, and the propeller propulsion shafts need to be rotatably arranged on an equipment main body by using bearings, but the propeller propulsion shafts are close to seawater, the bearings for installing the propeller propulsion shafts are in contact with the seawater, and are in a rather harsh use environment, and the corrosion resistance of the bearings is a problem which needs to be solved urgently.
The utility model also provides a marine transportation equipment, install the permanent magnetism auxiliary stay type water lubricated bearing of any kind of embodiment as above on marine transportation equipment's screw propulsion shaft 5. Referring to fig. 3 and 5, a copper bush 51 is provided outside the propeller shaft 5, a sleeve 52 made of a magnetic conductive material is provided outside the copper bush 51, and a connecting key 53 is provided between the sleeve 52 and the copper bush 51. Because the setting of permanent magnet can provide ascending magnetic attraction to the axle that sets up in water lubricated bearing body, reduces the pressure of pivot to water lubricated bearing body, and then improves the life of water lubricated bearing body. Or the propeller propulsion shaft is made of a magnetic conductive material, and an anti-corrosion coating is coated outside the propeller propulsion shaft; at the moment, a copper sleeve playing a role in protection does not need to be arranged outside the propeller propulsion shaft, and an additional shaft sleeve playing a role in magnetic attraction does not need to be arranged, so that the structure of the propeller propulsion shaft is simpler.
In a further preferred embodiment of the marine transportation device, the water lubricated bearing body is of an integral structure or a split structure, and when the water lubricated bearing body is of the split structure, the joint surface of the water lubricated bearing body is arranged below the permanent magnet mounting groove. Specifically, the water-lubricated bearing body comprises an upper bearing body and a lower bearing body, and the permanent magnet mounting groove is formed in the upper bearing body; fixing the upper bearing body in the inner cavity of the bearing shell, and then installing the lower bearing shell; because the lower part bearing housing contacts with the propeller propulsion shaft, and the weight of the support shaft, the wear of the support shaft is fast, when the lower part bearing body needs to be replaced due to wear or damage, other parts of the bearing do not need to be detached, and meanwhile, the whole water lubrication bearing body does not need to be replaced, so that the maintenance difficulty and the part cost during maintenance are reduced.
The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.
Claims (10)
1. A permanent magnet auxiliary support type water lubricated bearing, comprising: the bearing comprises a bearing shell (1), a magnet unit, a water lubrication bearing body (2) and a bearing end cover (6); the bearing shell (1) is of a cylindrical structure; the magnet unit comprises a permanent magnet (3); the magnet unit is mounted in the bearing housing (1); the water lubrication bearing body (2) is of a cylindrical structure, and a permanent magnet mounting groove (21) is formed in the upper portion of the water lubrication bearing body (2); the water lubrication bearing body (2) is arranged in the bearing shell (1), and the permanent magnet (3) is arranged in the permanent magnet mounting groove (21); the bearing end covers (6) are arranged at two ends of the bearing shell (1), and the bearing end covers (6) are connected with two end faces of the water lubrication bearing body (2) in a sealing mode.
2. The permanent magnet auxiliary support type water lubricated bearing according to claim 1, wherein a magnet unit mounting groove is provided at an upper portion of said bearing housing (1); the magnet unit further comprises a magnet mounting seat (9); the permanent magnet (3) is fixedly arranged on the magnet mounting seat (9); the magnet unit is installed in a magnet unit installation groove of the bearing shell (1).
3. The permanent magnet auxiliary support type water lubricated bearing according to claim 1, further comprising a seal ring (4), wherein the seal ring (4) is arranged between the bearing end cover (6) and the end face of the water lubricated bearing body (2).
4. The permanent magnet auxiliary support type water lubricated bearing according to claim 1, wherein the cross section of the permanent magnet (3) is a fan ring structure, and the cross section of the permanent magnet mounting groove (21) is a fan ring structure.
5. The permanent magnet auxiliary support type water lubricated bearing according to claim 2, wherein bearing housing lugs (11) are provided on both sides of the bearing housing (1), and the magnet mount (9) is provided with mount lugs (93); the magnet mount (9) is fixedly attached to the bearing housing ear plate (11) with a mount ear plate (93) and a bolt (8).
6. The permanent magnet auxiliary support type water lubricated bearing according to claim 5, wherein a mounting seat tongue and groove (91) is formed between the magnet mounting seat (9) and a mounting seat ear plate (93); the bearing shell (1) is provided with a bearing shell tongue-and-groove (12) at the position of the magnet unit installation groove, and the installation seat tongue-and-groove (91) is matched with the bearing shell tongue-and-groove (12).
7. The permanent magnet auxiliary support type water lubricated bearing according to claim 2, wherein the inner wall of the magnet mounting seat (9) is provided with two ribs (92), and the ribs (92) clamp the permanent magnet (3) at the middle part; the permanent magnet and the convex ribs on the two sides are arranged in the permanent magnet mounting groove (21).
8. The permanent magnet auxiliary support type water lubricated bearing according to claim 2, further comprising magnet baffles (7), wherein the magnet baffles (7) are installed on both sides of the magnet mounting seat (9), and the magnet baffles (7) are fixedly connected to the magnet mounting seat (9) by bolts (8).
9. Marine transport equipment, characterized in that a propeller propulsion shaft (5) of the marine transport equipment is provided with a permanent magnet auxiliary support type water lubricated bearing according to any one of claims 1 to 8; a copper sleeve (51) is arranged outside the propeller propulsion shaft (5), a shaft sleeve (52) made of magnetic conductive material is arranged outside the copper sleeve (51), and a connecting key (53) is arranged between the shaft sleeve (52) and the copper sleeve (51); or the propeller propulsion shaft (5) is made of a magnetic conductive material, and an anti-corrosion coating is coated on the outer part of the propeller propulsion shaft (5).
10. The marine transport apparatus of claim 9, wherein the water lubricated bearing body is of an integral structure or a split structure, and when the water lubricated bearing body is of a split structure, a joint surface of the water lubricated bearing body is disposed below the permanent magnet mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920936149.9U CN210461399U (en) | 2019-06-20 | 2019-06-20 | Permanent magnet auxiliary support type water lubrication bearing and ocean transportation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920936149.9U CN210461399U (en) | 2019-06-20 | 2019-06-20 | Permanent magnet auxiliary support type water lubrication bearing and ocean transportation equipment |
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| CN210461399U true CN210461399U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920936149.9U Active CN210461399U (en) | 2019-06-20 | 2019-06-20 | Permanent magnet auxiliary support type water lubrication bearing and ocean transportation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242669A (en) * | 2019-06-20 | 2019-09-17 | 迈格钠磁动力股份有限公司 | A kind of permanent magnetism Auxiliary support type water lubriucated bearing and sea transport equipment |
-
2019
- 2019-06-20 CN CN201920936149.9U patent/CN210461399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242669A (en) * | 2019-06-20 | 2019-09-17 | 迈格钠磁动力股份有限公司 | A kind of permanent magnetism Auxiliary support type water lubriucated bearing and sea transport equipment |
| CN110242669B (en) * | 2019-06-20 | 2024-01-26 | 迈格钠磁动力股份有限公司 | Permanent magnet auxiliary support type water lubrication bearing and marine transportation equipment |
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