CN107387564B - Horizontal permanent magnet suspension bearing - Google Patents
Horizontal permanent magnet suspension bearing Download PDFInfo
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- CN107387564B CN107387564B CN201710811121.8A CN201710811121A CN107387564B CN 107387564 B CN107387564 B CN 107387564B CN 201710811121 A CN201710811121 A CN 201710811121A CN 107387564 B CN107387564 B CN 107387564B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 145
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a horizontal permanent magnetic suspension bearing, comprising: the base is internally provided with a channel, the base is internally provided with a groove along the radial direction, and the width of the groove is smaller than that of the base along the radial direction; the rotary floater comprises a rotary magnetic ring which is positioned in the groove and sleeved on the long rolling shaft, and the diameter of the rotary magnetic ring is smaller than the width of the groove; the rotary floater locking mechanism is positioned on the outer side of the end face of the base in the axial direction and is sleeved on the long rolling shaft through a lining; the magnetic steel comprises thrust magnetic steel in the base and horizontal constraint magnetic steel in the bases on the left side and the right side of the rotary magnetic ring. The horizontal magnetic suspension bearing is simple in structure, has a horizontal constraint force, and can prevent the long rolling shaft from shaking along the conveying direction during rotation; and the thrust magnetic steel in the bearing base has a thrust effect on the rotary floater, so that the long rolling shaft can be in a linear state.
Description
Technical Field
The invention relates to a bearing, in particular to a horizontal permanent magnetic suspension bearing.
Background
The glass substrate is an important component of the liquid crystal panel and is generally only 0.3 to 0.8 mm thick. The substrate is called as a substrate because the liquid crystal panel is manufactured by using a glass substrate as a base and gradually applying a series of processes to form the liquid crystal panel. The steps of ITO thin film deposition, photoresist coating, exposure, development, etching, film stripping, etc. are performed on the glass substrate, and switching between these steps needs to be performed by a dedicated transfer device.
The liquid crystal glass substrate is supported and rotated by a set of rollers to realize conveying. In the width direction of the breadth of the glass substrate, a group of rollers are borne on a long rolling shaft, and the whole glass substrate is supported by the long rolling shafts in rows at equal intervals. According to the breadth of the current liquid crystal glass substrate, the width design requirement of a conveying system is more than 3.3 meters, and the matched long roller also needs a corresponding length. The long roller is made of a stainless steel tube, and due to the combined action of the weight of the roller, the weight of the roller and the weight of the liquid crystal glass substrate, the middle section of the long roller obviously sinks and bends, and the sinking distance exceeds the acceptable deformation range of the glass substrate, so that a bearing is required to solve the supporting problem of the long roller. However, the mechanical bearing generates scrap iron and pollutes the liquid crystal screen, and the scheme is in the elimination margin in the industry; although air bearings are free of friction when suspended, compressed air is a source of pollution. In order to solve the problems in the prior art, the long roller is also made of carbon fiber materials to reduce weight and improve strength, but the carbon fiber pipe with the length of 3.3 meters has quite high production cost. The magnetic suspension bearing based on the permanent magnet structure can ensure that the long rolling shaft keeps rigid suspension without external auxiliary conditions, friction and powder pollution, and has the characteristics of corrosion resistance and simple and convenient assembly. These features become the best solution for bearing support of the liquid crystal glass substrate conveying system.
At present, there are two types of common magnetic suspension bearings: one type is a vertical magnetic suspension bearing, and the other type is a horizontal magnetic suspension bearing. An integral magnetic bearing for the electric meter with patent number ZL93225573.6 is a vertical magnetic suspension bearing used for mechanical electric energy meter. Hundreds of millions of such monolithic magnetic bearings operate on electric energy meters in countries around the world, from the middle of the 90's of the 20 th century to over 20 years now. A steel needle with the diameter of 0.5 is used as a centering shaft, a graphite ring with a self-lubricating effect is used as a bearing, the electric energy meter turntable rotates around the shaft, and the magnetic thrust between 2 magnetic rings of the magnetic bearing completely supports the whole gravity of the electric energy meter turntable. Therefore, the magnetic bearing operates under the condition of no positive pressure, provides stable friction for the electric meter, and keeps the accuracy of the electric meter for a long time, thereby achieving the aim of long service life. However, such vertical magnetic bearings are clearly not used for transporting long shafts.
The other type is a horizontal magnetic suspension bearing (also called a radial bearing), which is applied less frequently. The horizontal magnetic suspension bearing is divided into an electromagnetic bearing and a permanent magnet bearing. A description is given in volume 2 of the fourth edition of the mechanical design Manual issued by the chemical industry Press.
A radial bearing in a permanent magnet bearing belongs to a horizontal magnetic suspension bearing. The magnetic suspension bearing with the structure can generate vertical thrust (magnetic suspension force) only when the inner ring deviates from the center. Moreover, only the lower half circle of the outer ring can generate upward thrust (magnetic levitation force) to the inner ring, and the upper half circle of the outer ring can only generate downward thrust to the inner ring, so that the magnetic levitation force is reduced. In addition, since the inner diameter of the outer ring is large, the restraining force to the inner ring in the horizontal direction is small, and there is no rigid suspension characteristic. Therefore, such magnetic bearings are not ideal for use in conveyor systems and are not commercially available.
In addition, there are electromagnetic bearings. However, the electromagnetic bearings require excitation, and also have sensors and feedback systems or servo control systems which are sensitive to eccentric changes. The structure is complex, the price is high, and the miniaturization is difficult to realize. The cost can not be reduced in the common industrial production. Therefore, no suitable magnetic bearing is available in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems that a horizontal permanent magnetic suspension bearing is provided, and the technical problems that the permanent magnetic suspension bearing in the prior art is complex in structure and high in price are solved.
In order to solve the technical problems, the invention adopts the technical scheme that: a horizontal permanent magnetism suspension bearing which characterized in that: this horizontal permanent magnetism suspension bearing includes:
the roller bearing comprises a base, wherein a channel is arranged in the base along the axial direction and is used for a long roller to pass through, a groove is arranged in the base along the radial direction, and the width of the groove is smaller than that of the base along the radial direction;
the rotary floater comprises a rotary magnetic ring, the rotary floater is positioned in the groove and is sleeved on the long rolling shaft, and the diameter of the rotary magnetic ring is smaller than the width of the groove;
the rotary floater locking mechanism is positioned on the end face of the base in the axial direction and is sleeved on the long rolling shaft through a bushing;
the magnetic steel comprises thrust magnetic steel and horizontal constraint magnetic steel, the thrust magnetic steel is arranged in the base right below the rotary magnetic ring, the horizontal constraint magnetic steel is arranged in the bases on the left side and the right side of the rotary magnetic ring, and the horizontal constraint magnetic steel on the left side and the right side of the rotary magnetic ring is symmetrical relative to the long roller;
the rotary magnetic ring and the magnetic steel are both permanent magnets.
For the sake of better clarity, the axial direction of the long roller is defined as the axial direction of the base, and the axial direction perpendicular to the long roller is defined as the radial direction of the base. The horizontal permanent magnetic suspension bearing is arranged in the middle of the long rolling shaft, and a channel is arranged in the base along the axial direction and is used for the long rolling shaft to pass through, as will be understood by those skilled in the art. It should be noted that, the base is provided with a groove inside for placing the rotary floater. In order to prevent the rotary floater from colliding with the inner wall of the groove and enable the rotary floater to be in a suspended state, the diameter of the rotary magnetic ring is smaller than the width of the groove, namely, gaps are reserved on the two sides of the groove of the rotary floater in the radial direction. The rotary floater locking mechanism fixes the rotary floater at the middle position of the long roller through a lining. And a thrust magnetic steel and a horizontal constraint magnetic steel are arranged in the base. The thrust magnetic steel in the base is arranged right below the rotary floater, has a thrust effect on the rotary floater, and can overcome partial gravity of the long rolling shaft to enable the long rolling shaft to be in a linear state; the horizontal constraint magnetic steels are arranged on the left side and the right side of the rotary floater in the base, and the rotary floater on the long rolling shaft is constrained by the repulsive force of the horizontal constraint magnetic steels on the two sides, so that the long rolling shaft can be prevented from shaking along the conveying direction during rotation. Because the horizontal constraint magnetic steels on the left side and the right side of the rotary magnetic ring are symmetrical relative to the long roller and have equal magnetism, when the rotary floater is in the middle position, namely the distances between the surface of the rotary floater and the two sides of the groove are equal, the magnetic thrusts on the two sides of the rotary floater are the same; when the long roller shakes due to rotation, the magnetic thrust of the surface of the rotary floater, which is closer to one side of the groove, is increased, and the magnetic thrust of the surface of the rotary floater, which is closer to one side of the groove, is decreased, so that when two forces act simultaneously, the long roller keeps a linear state, and the long roller is prevented from shaking along the conveying direction during rotation.
Preferably, the rotary magnetic ring is arranged into one group or at least two groups, and the magnetic steel is arranged into one group or at least two groups relative to the rotary magnetic ring. It should be noted that the at least two sets of rotating magnetic rings in the present invention refer to multiple sets of rotating magnetic rings sequentially arranged along the axial direction of the long roller. The magnetic steels comprise thrust magnetic steels and horizontal constraint magnetic steels, and for at least two groups of thrust magnetic steels, the thrust magnetic steels are a plurality of groups of thrust magnetic steels which are sequentially arranged along the axial direction of the base; the group of horizontal constraint magnetic steels are two horizontal constraint magnetic steels which are symmetrically arranged in the bases at two sides of the rotary floater relative to the long rolling shaft, and the at least two groups of horizontal constraint magnetic steels are multiple groups of horizontal constraint magnetic steels which are sequentially arranged along the axial direction of the bases.
In order to further improve the magnetic suspension thrust and enable the magnetic suspension thrust to show better rigid suspension characteristics, preferably, for at least two groups of rotating magnetic rings, the rotating magnetic rings are reversely and serially arranged, and a cushion block is arranged between every two adjacent rotating magnetic rings; for at least two groups of the magnetic steels, the magnetic steels are reversely connected in series, and a cushion block is arranged between every two adjacent magnetic steels. In order to realize a stronger extrusion magnetic field and enable the extrusion magnetic field to have higher bearing capacity of a suspension bearing, the cushion blocks can be replaced by radial magnetic rings and radial magnetic steels, namely for at least two groups of rotary magnetic rings, the rotary magnetic rings are reversely and serially arranged, and radial magnetic rings are arranged between the adjacent rotary magnetic rings; for at least two groups of the magnetic steels, each magnetic steel is reversely connected in series, and radial magnetic steels are arranged between adjacent magnetic steels.
In order to restrain the rotary floater in the axial direction and stabilize the rotary floater in the groove of the base, the magnetic steel further comprises axial restraint magnetic steels, the axial restraint magnetic steels are permanent magnets and are provided with two groups, the two groups of axial restraint magnetic steels are respectively arranged in the base in front of and behind the rotary magnetic ring, and each group of axial restraint magnetic steels are symmetrically arranged relative to the long rolling shaft. It should be noted that a group of axial constraint magnetic steels refers to two axial constraint magnetic steels located on two sides of the long roller. Two groups of axial constraint magnetic steels are respectively positioned in the bases at the front end and the rear end of the rotary floater. Because the distances from the axial constraint magnetic steels positioned at the front end and the rear end of the rotary floater to the corresponding front end and the rear end of the rotary floater are equal, and the magnetic magnitudes of the axial constraint magnetic steels are equal, when the rotary floater is positioned at the middle position, namely the distances from the surface of the rotary floater to the axial constraint magnetic steels positioned at the front end and the rear end of the rotary floater are the same, the magnetic thrusts borne by the two sides of the rotary floater are the same; when the long roller shaft shakes axially, the magnetic thrust of the rotary floater increases when the distance from the surface of the rotary floater to one side of the axial constraint magnetic steel decreases, and the magnetic thrust of the rotary floater to one side of the axial constraint magnetic steel decreases when the distance from the surface of the rotary floater to one side of the axial constraint magnetic steel increases, so that the long roller shaft can be prevented from shaking in the axial direction when two forces act simultaneously.
In order to avoid corrosion of the rotary magnetic ring, the rotary floater further comprises a corrosion-resistant coating layer, and the corrosion-resistant coating layer is wrapped on the outer surface of the rotary magnetic ring. The corrosion-resistant coating layer is made of corrosion-resistant materials, and is an electroplated layer or a stainless steel layer or other corresponding corrosion-resistant materials according to the requirements of actual conditions.
Preferably, the thrust magnetic steel can be in any one of a U-shaped structure, a V-shaped structure or a rectangular structure; the horizontal constraint magnetic steel can be in any one of a U-shaped structure, a V-shaped structure or a rectangular structure. The shape of the thrust magnetic steel and the shape of the horizontal constraint magnetic steel are matched with the internal structure of the base. For example, the inside recess of base is U type recess, and in order to be adapted to the structure of recess, the shape of thrust magnet steel is also U type structure. It should be noted, however, that the shape of each set of horizontal restraining magnetic steel should be consistent.
In order to avoid corrosion of the internal magnetic steel and further ensure that the relative positions of the internal magnetic steel are kept consistent, preferably, the base is made of any one of plastic, aluminum or stainless steel. Of course, the material is not limited to these materials, and the base made of other corrosion-resistant materials is also feasible.
The invention has the beneficial effects that:
1) the horizontal magnetic suspension bearing is simple in structure, has a horizontal constraint force, and can prevent the long rolling shaft from shaking along the conveying direction during rotation; the thrust magnetic steel in the bearing base has a thrust effect on the rotary floater, so that the long rolling shaft can be in a linear state;
2) the invention also adopts the axial constraint magnetic steel, so that the rotary floater can be further stabilized in the groove of the base, and the long rolling shaft can be prevented from shaking in the axial direction;
3) the invention can adopt a plurality of groups of rotating magnetic rings, thrust magnetic steel and horizontal constraint magnetic steel, and the plurality of groups of rotating magnetic rings, thrust magnetic steel and horizontal constraint magnetic steel are arranged in series in a reverse direction to improve the rigidity and thrust of the magnetic suspension; in addition, by arranging the radial magnetic rings in the multiple groups of rotary magnetic rings and arranging the radial magnetic steel between the multiple groups of thrust magnetic steel and horizontal constraint magnetic steel, a stronger extrusion magnetic field can be realized, so that the magnetic bearing is suitable for occasions with higher requirements on the bearing capacity of the suspension bearing;
4) the outer surface of the rotating magnetic ring is provided with the corrosion-resistant coating layer, and the base is made of corrosion-resistant materials, so that the service life of the rotating magnetic ring can be prolonged.
Drawings
FIG. 1 is a schematic view of an installation structure of embodiment 1;
FIG. 2 is a schematic structural view of embodiment 1;
FIG. 3a is a top view of a base plate according to example 1;
FIG. 3b is a front view of the base of embodiment 1;
FIG. 4a is a top view of a base plate according to embodiment 2;
FIG. 4b is a front view of a base in embodiment 2;
FIG. 5a is a top view of the base of example 3;
FIG. 5b is a front view of the base in embodiment 3;
FIG. 6a is a top view of a base of comparative example 1;
FIG. 6b is a front view of the base of comparative example 1;
FIG. 7 is a top view of a base plate according to embodiment 4;
FIG. 8 is a top view of a base in accordance with embodiment 5;
FIG. 9 is a top view of a base in accordance with embodiment 6;
FIG. 10 is a top view of a base of comparative example 2;
FIG. 11 is a top view of the base of example 7;
FIG. 12 is a top view of the base of example 8;
FIG. 13 is a top view of a base in accordance with embodiment 9;
FIG. 14 is a top view of a base of comparative example 3;
in the figure, the reference numbers 1-base, 1.1-channel, 1.2-groove and 1.3-end surface; 2-long roller; 3-rotating floater, 3.1-rotating magnetic ring, 3.2-corrosion-resistant coating layer; 4-a rotary float locking mechanism; 5-magnetic steel, 5.1-thrust magnetic steel, 5.2-horizontal constraint magnetic steel and 5.3-axial constraint magnetic steel; 6-cushion block; 7-a radial magnetic ring; 8-a bushing; 9-radial magnetic steel.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1:
a horizontal permanent magnet suspension bearing, as shown in fig. 1, fig. 2, fig. 3a and fig. 3b, comprising:
the base 1 is specifically a stainless steel base, a channel 1.1 for the long rolling shaft 2 to pass through is arranged in the base 1 along the axial direction, a groove 1.2 is arranged in the base 1 along the radial direction, and the width of the groove 1.2 is smaller than that of the base 1 along the radial direction;
the rotary floater 3 comprises a rotary magnetic ring 3.1 and a corrosion-resistant wrapping layer 3.2 wrapping the outer surface of the rotary magnetic ring 3.1, the rotary magnetic ring 3.1 is positioned in the groove 1.2 and is sleeved on the long roller 2, and the diameter of the rotary magnetic ring 3.1 is smaller than the width of the groove 1.2;
the rotary floater locking mechanism 4 is positioned outside the end face 1.3 of the base in the axial direction and is sleeved on the long rolling shaft 2 through a lining 8;
the magnetic steel 5 comprises thrust magnetic steel 5.1 and horizontal constraint magnetic steel 5.2, the thrust magnetic steel 5.1 is arranged in the base 1 right below the rotary magnetic ring 3.1, the horizontal constraint magnetic steel 5.2 is arranged in the bases 1 on the left side and the right side of the rotary magnetic ring 3.1, and the horizontal constraint magnetic steel 5.2 on the left side and the right side of the rotary magnetic ring 3.1 is symmetrical relative to the long roller 2;
in this embodiment, the rotating magnetic ring 3.1 and the magnetic steel 5 are both permanent magnets.
In the embodiment, the thrust magnetic steel 5.1 in the base 1 has a thrust effect on the rotary floater 3, and can overcome partial gravity of the long roller 2 to enable the long roller 2 to be in a linear state; the horizontal constraint magnetic steels 5.2 are arranged in the bases 1 at the left side and the right side of the rotary floater 3, and the rotary floater 3 on the long roller 2 is constrained by the repulsive force of the horizontal constraint magnetic steels 5.2 at the two sides, so that the long roller 2 can be prevented from shaking along the conveying direction during rotation. The bearing in this embodiment has a horizontal transfer direction restraining force.
Example 2
Different from the embodiment 1, the base 1 is not provided with the horizontal constraint magnetic steel 5.2, but two groups of axial constraint magnetic steels 5.3 are arranged in the bases 1 at the front side and the rear side of the rotary floater 3. The other technical features are the same as those described in example 1, as shown in fig. 4a and 4 b. The axial restraining magnet 5.3 restrains the rotary float 3 in the axial direction so that it is stabilized in the groove 1.2 of the base 1. Because the distances from the axial constraint magnetic steels 5.3 positioned at the front end and the rear end of the rotary floater 3 to the corresponding front end and the rear end of the rotary floater 3 are equal, and the magnetic properties are equal, when the rotary floater 3 is positioned at the middle position, namely the distances from the surface of the rotary floater 3 to the axial constraint magnetic steels at the front end and the rear end of the rotary floater 3 are the same, the magnetic thrusts borne by the two sides of the rotary floater 3 are the same; when the long roller 2 axially shakes, the magnetic thrust of the surface of the rotary floater 3, which is closer to the axial constraint magnetic steel 5.3, is increased, and the magnetic thrust of the surface, which is closer to the axial constraint magnetic steel 5.3, is decreased, so that when two forces act simultaneously, the shaking of the long roller 2 in the axial direction can be avoided. The bearing in this embodiment has an axial restraining force.
Example 3
Different from the embodiment 1, the base of the bearing is provided with not only the thrust magnetic steel 5.1 and the horizontal constraint magnetic steel 5.2, but also two groups of axial constraint magnetic steels 5.3 in the bases 1 at the front side and the rear side of the rotary floater 3. Other technical features are the same as those in embodiment 1, as shown in fig. 5a and 5 b. The bearing is configured to have horizontal and axial restraining forces.
Comparative example 1
Different from the embodiment 1, the base 1 of the bearing is only provided with the thrust magnetic steel 5.1 and is not provided with the horizontal constraint magnetic steel 5.2. Other technical features are the same as those in embodiment 1, as shown in fig. 6a and 6 b.
Example 4
Different from embodiment 1, one set of the rotating magnetic rings is changed into four sets of the rotating magnetic rings 3.1, and the four sets of the rotating magnetic rings 3.1 are sequentially arranged along the axial direction of the long roller 2. The four groups of rotating magnetic rings 3.1 are reversely connected in series, namely, one side of each two adjacent groups of rotating magnetic rings 3.1 with the same polarity is positioned at the same side, and a cushion block 6 is arranged between the two adjacent groups of rotating magnetic rings 3.1. Correspondingly, there are four groups of horizontal constraint magnetic steels 5.2, and the four groups of horizontal constraint magnetic steels 5.2 are sequentially arranged along the axial direction of the long roller 2. The horizontal constraint magnetic steels 5.2 are reversely connected in series, namely one side of the adjacent two groups of horizontal constraint magnetic steels 5.2 with the same polarity is positioned at the same side, and a cushion block 6 is arranged between the adjacent two groups of horizontal constraint magnetic steels 5.2. Correspondingly, in the base 1, there are four sets of thrust magnetic steels 5.1 located below the rotary magnetic ring 3, and the four sets of thrust magnetic steels 5.1 are sequentially arranged along the axial direction of the long roller 2, as shown in fig. 7. The thrust magnetic steels 5.1 are reversely connected in series, that is, one side of the two adjacent sets of thrust magnetic steels 5.1 with the same polarity is located at the same side, as shown by an arrow in the figure, and a cushion block 6 is arranged between the two adjacent sets of thrust magnetic steels 5.1. Other technical features are the same as those in example 1.
Because set up multiunit rotating magnetic ring 3.1, horizontal restraint magnet steel 5.2 and thrust magnet steel 5.1, increased the quantity of reverse series connection promptly, consequently, this bearing has the confining force of horizontal direction, and the rigidity characteristic of suspending strengthens.
Example 5
Different from the embodiment 4, in the technical scheme, four groups of horizontal constraint magnetic steels 5.2 are not arranged, but two groups of axial constraint magnetic steels 5.3 are arranged in the bases 1 at the front side and the rear side of the rotary floater 3. Other technical features are the same as those in embodiment 4, as shown in fig. 8. The bearing has an axial restraining force.
Example 6
Different from the embodiment 4, in addition to four sets of rotary magnetic rings 3.1 and four sets of magnetic steels 5, two sets of axial constraint magnetic steels 5.3 are provided in the bases 1 at the front and rear sides of the rotary floater 3. Other technical features are the same as those in embodiment 4, as shown in fig. 9. The bearing has both horizontal and axial restraining forces.
Comparative example 2
Different from embodiment 4, in this technical solution, only 4 sets of rotating magnetic rings 3.1 and four sets of thrust magnetic steels 5.1 are provided, and no horizontal constraint magnetic steel 5.2 and no axial constraint magnetic steel 5.3 are provided, as shown in fig. 10.
Example 7
Different from the embodiment 4, the cushion blocks 6 in the two adjacent groups of rotating magnetic rings 3.1 are changed into radial magnetic steels 7, the cushion blocks 6 in the two adjacent groups of horizontal constraint magnetic steels 5.2 and the adjacent thrust magnetic steels 5.1 are changed into radial magnetic steels 9, and other technical characteristics are consistent with those of the embodiment 4, as shown in fig. 11, so that a stronger extrusion magnetic field can be realized to adapt to occasions with higher requirements on the bearing capacity of the suspension bearing.
Example 8
Different from the embodiment 7, the horizontal restraining magnet 5.2 is not provided, but two sets of axial restraining magnets 5.3 are provided in the base 1 at the front and rear sides of the rotary floater 3, and other technical characteristics are consistent with those of the embodiment 4, as shown in fig. 12, so that the rotary floater has an axial restraining force.
Example 9
Different from the embodiment 7, in addition to four sets of rotary magnetic rings 3.1 and four sets of magnetic steels 5, two sets of axial constraint magnetic steels 5.3 are provided in the bases 1 at the front and rear sides of the rotary floater 3. Other technical features are the same as those in embodiment 7, as shown in fig. 13. The bearing has both horizontal and axial restraining forces.
Comparative example 3
Unlike embodiment 7, except for four sets of rotating magnetic rings 3.1 and four sets of thrust magnetic steels 5.1, no horizontal constraint magnetic steel 5.2 and no axial constraint magnetic steel 5.3 are provided, as shown in fig. 14, and other technical features are the same as those of embodiment 7.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A horizontal permanent magnetism suspension bearing which characterized in that: this horizontal permanent magnetism suspension bearing includes:
the roller bearing comprises a base, wherein a channel is arranged in the base along the axial direction and is used for a long roller to pass through, a groove is arranged in the base along the radial direction, and the width of the groove is smaller than that of the base along the radial direction;
the rotary floater comprises a rotary magnetic ring, the rotary magnetic ring is positioned in the groove and is sleeved on the long rolling shaft, and the diameter of the rotary magnetic ring is smaller than the width of the groove;
the rotary floater locking mechanism is positioned on the outer side of the end face of the base in the axial direction and is sleeved on the long rolling shaft through a lining;
the magnetic steel comprises thrust magnetic steel and horizontal constraint magnetic steel, the thrust magnetic steel is arranged in the base right below the rotary magnetic ring, the horizontal constraint magnetic steel is arranged in the bases on the left side and the right side of the rotary magnetic ring, and the horizontal constraint magnetic steel on the left side and the right side of the rotary magnetic ring is symmetrical relative to the long roller;
the rotary magnetic ring and the magnetic steel are both permanent magnets.
2. The horizontal permanent magnetic suspension bearing of claim 1, characterized in that: the rotary magnetic rings are arranged in a group, and the magnetic steels are arranged in a group relative to the rotary magnetic rings.
3. The horizontal permanent magnetic suspension bearing of claim 1, characterized in that: the rotary magnetic rings are arranged into at least two groups, and the magnetic steels are arranged into at least two groups relative to the rotary magnetic rings.
4. The horizontal permanent magnetic suspension bearing of claim 3, characterized in that: for at least two groups of the rotating magnetic rings, the rotating magnetic rings are reversely and serially arranged, and a cushion block is arranged between every two adjacent rotating magnetic rings; for at least two groups of the magnetic steels, the magnetic steels are reversely connected in series, and a cushion block is arranged between every two adjacent magnetic steels.
5. The horizontal permanent magnetic suspension bearing of claim 3, characterized in that: for at least two groups of the rotating magnetic rings, the rotating magnetic rings are reversely and serially arranged, and a radial magnetic ring is arranged between every two adjacent rotating magnetic rings; for at least two groups of the magnetic steels, each magnetic steel is reversely connected in series, and radial magnetic steels are arranged between adjacent magnetic steels.
6. The horizontal permanent magnetic suspension bearing of claim 1, characterized in that: the magnetic steel further comprises axial constraint magnetic steels, the axial constraint magnetic steels are permanent magnets and are provided with two groups, the two groups of axial constraint magnetic steels are respectively arranged in the bases in front of and behind the rotary magnetic ring, and each group of axial constraint magnetic steels are symmetrically arranged relative to the long rolling shaft.
7. The horizontal permanent magnetic suspension bearing of claim 1, characterized in that: the rotary floater further comprises a corrosion-resistant coating layer, and the corrosion-resistant coating layer is wrapped on the outer surface of the rotary magnetic ring.
8. The horizontal permanent magnetic suspension bearing of claim 7, characterized in that: the corrosion-resistant coating layer is made of a corrosion-resistant material.
9. The horizontal permanent magnetic suspension bearing according to any one of claims 1 to 8, characterized in that: the thrust magnetic steel is of a U-shaped structure, a V-shaped structure or a rectangular structure; the horizontal constraint magnetic steel is of a U-shaped structure, a V-shaped structure or a rectangular structure.
10. The horizontal permanent magnetic suspension bearing according to any one of claims 1 to 8, characterized in that: the base is made of plastic, aluminum or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811121.8A CN107387564B (en) | 2017-09-11 | 2017-09-11 | Horizontal permanent magnet suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811121.8A CN107387564B (en) | 2017-09-11 | 2017-09-11 | Horizontal permanent magnet suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387564A CN107387564A (en) | 2017-11-24 |
| CN107387564B true CN107387564B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811121.8A Active CN107387564B (en) | 2017-09-11 | 2017-09-11 | Horizontal permanent magnet suspension bearing |
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| Country | Link |
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| CN (1) | CN107387564B (en) |
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| US4128280A (en) * | 1977-01-17 | 1978-12-05 | Sulzer Brothers Limited | Self-pressurizing floating gas bearing having a magnetic bearing therein |
| JPH0735138A (en) * | 1992-03-10 | 1995-02-03 | Shikoku Sogo Kenkyusho:Kk | Superconductive bearing unit |
| CN201187530Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Non-balance magnetic bearing |
| CN101586625A (en) * | 2008-05-20 | 2009-11-25 | 卓向东 | Magnetic suspension bearing and the main shaft that is got up by suspension |
| CN201818660U (en) * | 2010-09-29 | 2011-05-04 | 西南交通大学 | Permanent magnet radial bearing |
| CN204186802U (en) * | 2014-09-11 | 2015-03-04 | 江苏大学 | A kind of Novel shaft-radial three freedom degree mixed magnetic bearing |
| CN104930056A (en) * | 2014-03-18 | 2015-09-23 | 卓向东 | Magnetic suspension bearing with radial and axial suspension functions |
| CN206036034U (en) * | 2016-08-29 | 2017-03-22 | 解璟昊 | Magnetic bearing |
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2017
- 2017-09-11 CN CN201710811121.8A patent/CN107387564B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128280A (en) * | 1977-01-17 | 1978-12-05 | Sulzer Brothers Limited | Self-pressurizing floating gas bearing having a magnetic bearing therein |
| JPH0735138A (en) * | 1992-03-10 | 1995-02-03 | Shikoku Sogo Kenkyusho:Kk | Superconductive bearing unit |
| CN201187530Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Non-balance magnetic bearing |
| CN101586625A (en) * | 2008-05-20 | 2009-11-25 | 卓向东 | Magnetic suspension bearing and the main shaft that is got up by suspension |
| CN201818660U (en) * | 2010-09-29 | 2011-05-04 | 西南交通大学 | Permanent magnet radial bearing |
| CN104930056A (en) * | 2014-03-18 | 2015-09-23 | 卓向东 | Magnetic suspension bearing with radial and axial suspension functions |
| CN204186802U (en) * | 2014-09-11 | 2015-03-04 | 江苏大学 | A kind of Novel shaft-radial three freedom degree mixed magnetic bearing |
| CN206036034U (en) * | 2016-08-29 | 2017-03-22 | 解璟昊 | Magnetic bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387564A (en) | 2017-11-24 |
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Effective date of registration: 20231027 Address after: 1218 Siyi Road, Jiading District, Shanghai, 201801 Patentee after: SHANGHAI JIELING MAGNETIC MATERIAL & DEVICES Co.,Ltd. Address before: 201800 room 1197, building 1, No. 1188, Yongjing Road, Juyuan new area, Jiading District, Shanghai Patentee before: SHANGHAI HAOLING MAGNETOELECTRIC DEVICE Co.,Ltd. |