CN204572785U - A kind of composite structure of permanent magnetism magnetic suspension bearing - Google Patents
A kind of composite structure of permanent magnetism magnetic suspension bearing Download PDFInfo
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- CN204572785U CN204572785U CN201520272688.9U CN201520272688U CN204572785U CN 204572785 U CN204572785 U CN 204572785U CN 201520272688 U CN201520272688 U CN 201520272688U CN 204572785 U CN204572785 U CN 204572785U
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Abstract
The utility model discloses a kind of composite structure of permanent magnetism magnetic suspension bearing, comprise axle (21), it is characterized in that: the axial two ends of described axle (21) are separately installed with can be provided the permanent magnetism magnetic suspension thrust-bearing (22) of bidirectional axial force and radial suspension force and can provide the permanent magnetism magnetic suspension bearing (23) of radial suspension force or install two permanent magnetism magnetic suspension thrust-bearings (22) that can provide bidirectional axial force and radial suspension force be oppositely arranged at the axial two ends of axle (21) respectively.The composite structure of permanent magnetism magnetic suspension bearing of the present utility model adopts can provide the combination of the permanent magnetism magnetic suspension thrust-bearing of bidirectional axial force and radial suspension force form or adopt permanent magnetism magnetic suspension thrust-bearing and the permanent magnetism magnetic suspension bearing of radial suspension force can be provided to combine simultaneously; This composite structure installs simple, easy to adjust and stable performance, can replace mechanical bearing completely, is applicable to the occasion that the comparatively large or axial float of axial force strengthens.
Description
Technical field
The utility model relates to a kind of bearing combined structure, specifically a kind of composite structure that can produce the permanent magnetism magnetic suspension bearing of stable axial force and radial force.
Background technique
Bearing is widely used in machinery, and when axle and other parts produce relative movement, bearing can be used for the central position of retainer shaft and Control Shaft motion.Common axle system bearing arrangement at least needs axis and the radial direction of two bearing supports and positioning shaft, bearing adopts rolling bearing, sliding bearing etc. usually, and due to the existence of Mechanical Contact, bearing wear is large, life-span is short, also needs the process considering lubrication and oil pollution in regular maintenance.
Summary of the invention
The purpose of this utility model is for prior art Problems existing, provides the composite structure that a kind of stability is higher, structure simply also can produce the permanent magnetism magnetic suspension bearing of stable axial force and radial force.
The purpose of this utility model solves by the following technical programs:
A kind of composite structure of permanent magnetism magnetic suspension bearing, comprise axle, permanent magnetism magnetic suspension thrust-bearing and permanent magnetism magnetic suspension bearing, it is characterized in that: the axial two ends of described axle are separately installed with can be provided the permanent magnetism magnetic suspension thrust-bearing of bidirectional axial force and radial suspension force and can provide the permanent magnetism magnetic suspension bearing of radial suspension force or install two permanent magnetism magnetic suspension thrust-bearings that can provide bidirectional axial force and radial suspension force be oppositely arranged at the axial two ends of axle respectively.
Described permanent magnetism magnetic suspension thrust-bearing comprises outer ring, in outer ring, be provided with coaxial sleeve to be fixed on axle and with the axial inner ring of axle synchronous rotary and radial inner ring, all coaxial with the outer ring sleeve of axial inner ring and radial inner ring arranges and forms respectively not contact and is rotatably assorted; On the exterior edge face, axial both sides of described axial inner ring and the diaxon of the outer ring corresponding to this exterior edge face, axial both sides is corresponding respectively on inner wall end surface arranges corresponding permanent magnet, the interaction of above-mentioned permanent magnet be axle provider to contrary bidirectional axial force with the axial float of restrictive axes; On the radial outer peripheral surface of described radial inner ring and the radial inner peripheral surface of the outer ring corresponding with this radial outer peripheral surface be provided with the identical permanent magnet of polarity, the interaction of permanent magnet is herein then for axle provides radial suspension force.
The axial both sides end face of described axial inner ring is respectively equipped with axial internal magnetic ring one and axial internal magnetic ring two, and the axial inner wall end surface of the outer ring corresponding with the axial end of the axial inner ring arranging axial internal magnetic ring one is provided with axial outer magnetic ring one, the axial inner wall end surface of the outer ring corresponding with the axial end of the axial inner ring arranging axial internal magnetic ring two is provided with axial outer magnetic ring two, and is provided with air gap between axial internal magnetic ring one and axial outer magnetic ring one and is provided with air gap between axial internal magnetic ring two and axial outer magnetic ring two; Then axial internal magnetic ring one and axial outer magnetic ring one, axial internal magnetic ring two and axial outer magnetic ring two are configured to axle provider to contrary bidirectional axial force with the permanent magnet of the axial float of restrictive axes.
Described axial internal magnetic ring one, axial outer magnetic ring one, axial internal magnetic ring two, axial outer magnetic ring two all axial chargings, the identical generation repulsion of end face pole polarity that described axial internal magnetic ring one is just right with axial outer magnetic ring one, and the end face pole polarity also identical generation repulsion that axial internal magnetic ring two is just right with axial outer magnetic ring two, be overall circular permanent magnet and the interaction by air gap between the identical axial internal magnetic ring one of rear longitudinal center line and axial outer magnetic ring one is installed, the axial inner ring be fixed on axle is made to be subject to the contrary vertical repulsive force in direction thus the axial float of restrictive axes by the interaction of air gap between axial internal magnetic ring two and axial outer magnetic ring two.
The radial outer peripheral surface of described radial inner ring is provided with radial internal magnetic ring, the radial inner peripheral surface of the outer ring corresponding with the radial outer peripheral surface of the radial inner ring arranging radial internal magnetic ring is provided with radial outer magnetic ring, and is provided with air gap between radial internal magnetic ring and radial outer magnetic ring and makes radial internal magnetic ring and radial outer magnetic ring be configured to the permanent magnet that axle provides radial suspension force; The axial outer end place of the radial outer magnetic ring simultaneously on described outer ring is provided with the outer end cap of axially-fixed and radial outer magnetic ring, and the radial internal magnetic ring axial outer end face place on radial inner ring is provided with the inner end cap limiting radial internal magnetic ring further.
The pole polarity identical generation repulsion of described radial internal magnetic ring with the equal radial magnetizing of radial outer magnetic ring and on the radial outer peripheral surface of the radial internal magnetic ring radial inner peripheral surface just right with radial outer magnetic ring, be overall circular permanent magnet and between the radial internal magnetic ring that longitudinal center line is identical after installing and radial outer magnetic ring by the interaction of air gap then for axle provides radial suspension force.
Described outer ring comprises magnetic support one, outer connecting base and magnetic support two, two axial ends of outer connecting base to be fixedly linked the outer ring forming and can hold axial inner ring and radial inner ring respectively by the magnetic support one of adjustment pad and screw and its both sides and magnetic support two, the radial outside that outer connecting base is positioned at axial inner ring makes the coaxial sleeve setting of outer connecting base and axial inner ring and forms not contact to be rotatably assorted, and the axial both sides that second magnetic support one and magnetic support lay respectively at axial inner ring make the axial inner wall end surface of magnetic support one be provided with axial outer magnetic ring one, the axial inner wall end surface of magnetic support two is provided with axial outer magnetic ring two, the radial inner peripheral surface of the thrust ring that the exterior edge face of described magnetic support two is arranged vertically is then just rotatably assorted to being arranged so that the thrust ring of magnetic support two arranges with the coaxial sleeve of radial inner ring and forms not contact with the radial outer peripheral surface of radial inner ring, and the radial inner peripheral surface of thrust ring is arranged the radial internal magnetic ring that the radial outer peripheral surface of radial outer magnetic ring and radial inner ring is arranged and interact as axle provides radial suspension force.
Described radial inner ring and axial inner ring respectively coaxial sleeve are fixed on axle, wherein the axial side of radial inner ring by shaft shoulder axially locating and its opposite side by bearing spacer axial restraint; And the side of axial inner ring and radial inner ring share same bearing spacer axially locating and the opposite side of axial inner ring employing round nut axial restraint, thus make radial inner ring and axial inner ring can follow axle synchronous rotary.
Described permanent magnetism magnetic suspension bearing comprises outer magnetic ring and interior magnetosphere, and outer magnetic ring and interior magnetosphere do not contact and to be rotatably assorted and coaxial sleeve is arranged; Outer magnetic ring arranges radial outer magnetic ring two on the inner peripheral surface of interior magnetosphere, the outer peripheral surface of interior magnetosphere magnetosphere is toward the outside oppositely arranged radial internal magnetic ring two, and radial outer magnetic ring two is provided with air gap between the two with radial internal magnetic ring two and the identical generation repulsion of both relative circumferential surface pole polarity thus provide radial suspension force to axle.
The axial side of described interior magnetosphere is by shaft shoulder axially locating and its opposite side adopts round nut to be axially fixed on axle, thus makes interior magnetosphere can follow axle synchronous rotary.
The utility model has the following advantages compared to existing technology:
The composite structure of permanent magnetism magnetic suspension bearing of the present utility model adopts can provide the combination of the permanent magnetism magnetic suspension thrust-bearing of bidirectional axial force and radial suspension force form or adopt permanent magnetism magnetic suspension thrust-bearing and the permanent magnetism magnetic suspension bearing of radial suspension force can be provided to combine simultaneously; This composite structure installs simple, easy to adjust and stable performance, can replace mechanical bearing completely, is applicable to the occasion that the comparatively large or axial float of axial force strengthens.
The permanent magnetism magnetic suspension thrust-bearing that the utility model adopts selects two to axial magnet ring and a pair radial magnetic ring is integrated forms, the relative end face Magnetic Phase of paired axial magnet ring with, make two to axial magnet ring can provider to contrary bidirectional axial force; The circumferential surface Magnetic Phase that radial magnetic ring is relative is same to provide radial suspension force; The axial inner ring of integrated axial internal magnetic ring and the radial inner ring of integrated radial internal magnetic ring are provided separately in addition, reduce two to axial magnet ring separately between magnetic field and a pair radial magnetic ring between the degree that influences each other in magnetic field, and above-mentioned magnet ring is overall circle structure, make the stable magnetic field of this permanent magnetism magnetic suspension thrust-bearing, improve stability and the running accuracy of operation.
The outer ring of the permanent magnetism magnetic suspension thrust-bearing that the utility model adopts adopts magnetic support one, outer connecting base and magnetic support two to be fixedly linked formation by screw and adjustment pad, in order to hold axial inner ring and radial inner ring, the structure of this permanent magnetism magnetic suspension thrust-bearing is simple, be convenient to processing, install and adjust, be applicable to axial force and the larger equipment of axial float, assembled in pairs together using effect is better.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model employing permanent magnetism magnetic suspension thrust-bearing and permanent magnetism magnetic suspension bearing combined structure schematic diagram;
Accompanying drawing 2 adopts a pair permanent magnetism magnetic suspension thrust-bearing combination structural representation for the utility model.
Wherein: 1-outer ring; 2-axial inner ring; 3-radial inner ring; 4-axial internal magnetic ring one; 5-axial outer magnetic ring one; 6-axial internal magnetic ring two; 7-axial outer magnetic ring two; 8-radial internal magnetic ring; 9-radial outer magnetic ring; 10-outer end cap; 11-inner end cap; 12-magnetic support one; 13-outer connecting base; 14-magnetic support two; 15-adjustment pad; 16-screw; 17-thrust ring; 18-shaft shoulder; 19-bearing spacer; 20-round nut; 21-axle; 22-permanent magnetism magnetic suspension thrust-bearing; 23-permanent magnetism magnetic suspension bearing; 24-outer magnetic ring; 25-radial outer magnetic ring two; 26-interior magnetosphere; 27-radial internal magnetic ring two.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
As shown in Figure 1-2: a kind of composite structure of permanent magnetism magnetic suspension bearing, comprise axle 21, permanent magnetism magnetic suspension thrust-bearing 22 and permanent magnetism magnetic suspension bearing 23, be separately installed with at the axial two ends of axle 21 and the permanent magnetism magnetic suspension thrust-bearing 22 of bidirectional axial force and radial suspension force can be provided and the permanent magnetism magnetic suspension bearing 23 of radial suspension force can be provided or two permanent magnetism magnetic suspension thrust-bearings 22 that can provide bidirectional axial force and radial suspension force be oppositely arranged are installed respectively at the axial two ends of axle 21.Wherein permanent magnetism magnetic suspension thrust-bearing 22 comprises outer ring 1, in outer ring 1, be provided with coaxial sleeve to be fixed on axle 21 and with the axial inner ring 2 of axle 21 synchronous rotary and radial inner ring 3, radial inner ring 3 and axial inner ring 2 respectively coaxial sleeve are fixed on axle 21, wherein the axial side of radial inner ring 3 by the shaft shoulder 18 axially locating and its opposite side by bearing spacer 19 axial restraint; And the side of axial inner ring 2 and radial inner ring 3 share same bearing spacer 19 axially locating and the opposite side of axial inner ring 2 employing round nut 20 axial restraint, thus make radial inner ring 3 and axial inner ring 2 can follow axle 21 synchronous rotary.Axial inner ring 2 all arranges and forms respectively not contact with the coaxial sleeve in outer ring 1 with radial inner ring 3 and is rotatably assorted; On the exterior edge face, axial both sides of described axial inner ring 2 and the diaxon of the outer ring 1 corresponding to this exterior edge face, axial both sides is corresponding respectively on inner wall end surface arranges corresponding permanent magnet, the interaction of above-mentioned permanent magnet be axle 21 provider to contrary bidirectional axial force with the axial float of restrictive axes 21; On the radial outer peripheral surface of described radial inner ring 3 and the radial inner peripheral surface of the outer ring 1 corresponding with this radial outer peripheral surface be provided with the identical permanent magnet of polarity, the interaction of permanent magnet is herein then for axle 21 provides radial suspension force.Permanent magnetism magnetic suspension bearing 23 comprises outer magnetic ring 24 and interior magnetosphere 26, outer magnetic ring 24 and interior magnetosphere 26 do not contact and to be rotatably assorted and coaxial sleeve is arranged, outer magnetic ring 24 arranges radial outer magnetic ring 2 25 on the inner peripheral surface of interior magnetosphere 26, the outer peripheral surface of interior magnetosphere 26 magnetosphere 24 is toward the outside oppositely arranged radial internal magnetic ring 2 27, and radial outer magnetic ring 2 25 is provided with air gap between the two with radial internal magnetic ring 2 27 and the identical generation repulsion of both relative circumferential surface pole polarity thus provide radial suspension force to axle 21.During use, the axial side of interior magnetosphere 26 is by the shaft shoulder 18 axially locating and its opposite side adopts round nut 20 to be axially fixed on axle 21, thus makes interior magnetosphere 26 can follow axle 21 synchronous rotary.
For the concrete distribution situation of the permanent magnet on permanent magnetism magnetic suspension thrust-bearing 22, below by providing the permanent magnet of axial force and providing the permanent magnet of radial force to further illustrate respectively.
As shown in Figure 1-2, the axial both sides end face of axial inner ring 2 is respectively equipped with axial internal magnetic ring 1 and axial internal magnetic ring 26, the axial inner wall end surface of the outer ring 1 corresponding with the axial end of the axial inner ring 2 arranging axial internal magnetic ring 1 is provided with axial outer magnetic ring 1, the axial inner wall end surface of the outer ring 1 corresponding with the axial end of the axial inner ring 2 arranging axial internal magnetic ring 26 is provided with axial outer magnetic ring 27, and is provided with air gap between axial internal magnetic ring 1 and axial outer magnetic ring 1 and is provided with air gap between axial internal magnetic ring 26 and axial outer magnetic ring 27; Then axial internal magnetic ring 1 and axial outer magnetic ring 1, axial internal magnetic ring 26 and axial outer magnetic ring 27 are configured to axle 21 provider to contrary bidirectional axial force with the permanent magnet of the axial float of restrictive axes 21.Specifically, axial internal magnetic ring 1, axial outer magnetic ring 1, axial internal magnetic ring 26, axial outer magnetic ring 27 all axial chargings, make to be interacted by air gap between axial internal magnetic ring 1 and axial outer magnetic ring 1, produce the contrary axial force in direction by air gap interaction between axial internal magnetic ring 26 and axial outer magnetic ring 27; The identical generation repulsion of end face pole polarity that axial internal magnetic ring 1 is just right with axial outer magnetic ring 1, and the end face pole polarity also identical generation repulsion that axial internal magnetic ring 26 is just right with axial outer magnetic ring 27, be overall circular permanent magnet and after installing between the identical axial internal magnetic ring 1 of longitudinal center line and axial outer magnetic ring 1 by the interaction of air gap, make the axial inner ring 2 be fixed on axle 21 be subject to the axial float of the contrary vertical repulsive force in direction thus restrictive axes 21 by the interaction of air gap between axial internal magnetic ring 26 and axial outer magnetic ring 27.It should be noted that in addition, axial inner ring 2 in said structure, be arranged on axial internal magnetic ring 1 on exterior edge face, axial inner ring 2 axial both sides and axial internal magnetic ring 26 three and form one and to be fixed on axle 21 and with the ring bodies of axle 21 synchronous rotary, namely the radial extension of axial internal magnetic ring 1 is all mutually concordant with axial extension with the radial extension of axial inner ring 2 with axial extension with the radial extension of axial extension, axial internal magnetic ring 26.
As shown in Figure 1-2, the radial outer peripheral surface of radial inner ring 3 is provided with radial internal magnetic ring 8, the radial inner peripheral surface of the outer ring 1 corresponding with the radial outer peripheral surface of the radial inner ring 3 arranging radial internal magnetic ring 8 is provided with radial outer magnetic ring 9, and is provided with air gap between radial internal magnetic ring 8 and radial outer magnetic ring 9 and makes radial internal magnetic ring 8 and radial outer magnetic ring 9 be configured to the permanent magnet that axle 21 provides radial suspension force; And the axial outer end place of radial outer magnetic ring 9 on outer ring 1 is provided with the outer end cap 10 of axially-fixed and radial outer magnetic ring 9, and the radial internal magnetic ring 8 axial outer end face place on radial inner ring 3 is provided with the inner end cap 11 limiting radial internal magnetic ring 8 further.Simultaneously radial internal magnetic ring 8 and radial outer magnetic ring 9 all radial magnetizing and identical generation repulsion of pole polarity on the radial outer peripheral surface of the radial internal magnetic ring 8 radial inner peripheral surface just right with radial outer magnetic ring 9, be overall circular permanent magnet and install that longitudinal center line is identical afterwards between radial internal magnetic ring 8 and radial outer magnetic ring 9 by the interaction of air gap then for axle 21 provides radial suspension force.
After the distribution describing the permanent magnet on permanent magnetism magnetic suspension thrust-bearing 22, the permanent magnetism magnetic suspension thrust-bearing 22 provided to make the application is easy to assembling, therefore the structure of the outer ring 1 of permanent magnetism magnetic suspension thrust-bearing 22 is decomposed, specifically, as shown in Figure 1-2, outer ring 1 comprises magnetic support 1, outer connecting base 13 and magnetic support 2 14, two axial ends of outer connecting base 13 to be fixedly linked the outer ring 1 forming and can hold axial inner ring 2 and radial inner ring 3 respectively by the magnetic support 1 of adjustment pad 15 and screw 16 and its both sides and magnetic support 2 14, the radial outside that outer connecting base 13 is positioned at axial inner ring 2 makes outer connecting base 13 and the coaxial sleeve of axial inner ring 2 arrange and form not contact to be rotatably assorted, the axial both sides that magnetic support 1 and magnetic support 2 14 then lay respectively at axial inner ring 2 make axial outer magnetic ring 1 be arranged on the axial inner wall end surface of magnetic support 1, axial outer magnetic ring 27 is arranged on the axial inner wall end surface of magnetic support 2 14, the radial inner peripheral surface of the thrust ring 17 that the exterior edge face of simultaneously magnetic support 2 14 is arranged vertically is then just rotatably assorted to being arranged so that the thrust ring 17 of magnetic support 2 14 arranges with the coaxial sleeve of radial inner ring 3 and forms not contact with the radial outer peripheral surface of radial inner ring 3, and the radial inner peripheral surface of thrust ring 17 is arranged the radial internal magnetic ring 8 that the radial outer peripheral surface of radial outer magnetic ring 9 and radial inner ring 3 is arranged and interact as axle 21 provides radial suspension force.
The composite structure of permanent magnetism magnetic suspension bearing of the present utility model adopts can provide the permanent magnetism magnetic suspension thrust-bearing 22 of bidirectional axial force and radial suspension force combine or adopt permanent magnetism magnetic suspension thrust-bearing 22 and the permanent magnetism magnetic suspension bearing 23 of radial suspension force can be provided to combine simultaneously; This composite structure installs simple, easy to adjust and stable performance, can replace mechanical bearing completely, is applicable to the occasion that the comparatively large or axial float of axial force strengthens.The permanent magnetism magnetic suspension thrust-bearing adopted selects two to axial magnet ring and a pair radial magnetic ring is integrated forms, the relative end face Magnetic Phase of paired axial magnet ring with, make two to axial magnet ring can provider to contrary bidirectional axial force; The circumferential surface Magnetic Phase that radial magnetic ring is relative is same to provide radial suspension force; The axial inner ring 2 of integrated axial internal magnetic ring and the radial inner ring 3 of integrated radial internal magnetic ring are provided separately in addition, reduce two to axial magnet ring separately between magnetic field and a pair radial magnetic ring between the degree that influences each other in magnetic field, and above-mentioned magnet ring is overall circle structure, make the stable magnetic field of this permanent magnetism magnetic suspension thrust-bearing, improve stability and the running accuracy of operation; The outer ring 1 of permanent magnetism magnetic suspension thrust-bearing adopts magnetic support 1, outer connecting base 13 and magnetic support 2 14 to be fixedly linked formation by screw 16 and adjustment pad 15, in order to hold axial inner ring 2 and radial inner ring 3, the structure of this permanent magnetism magnetic suspension thrust-bearing is simple, be convenient to processing, install and adjust, be applicable to axial force and the larger equipment of axial float, assembled in pairs together using effect is better.
Above embodiment is only and technological thought of the present utility model is described, protection domain of the present utility model can not be limited with this, every technological thought according to the utility model proposes, any change that technological scheme basis is done, all falls within the utility model protection domain; The technology that the utility model does not relate to all is realized by prior art.
Claims (10)
1. the composite structure of a permanent magnetism magnetic suspension bearing, comprise axle (21), permanent magnetism magnetic suspension thrust-bearing (22) and permanent magnetism magnetic suspension bearing (23), it is characterized in that: the axial two ends of described axle (21) are separately installed with can be provided the permanent magnetism magnetic suspension thrust-bearing (22) of bidirectional axial force and radial suspension force and can provide the permanent magnetism magnetic suspension bearing (23) of radial suspension force or install two permanent magnetism magnetic suspension thrust-bearings (22) that can provide bidirectional axial force and radial suspension force be oppositely arranged at the axial two ends of axle (21) respectively.
2. the composite structure of permanent magnetism magnetic suspension bearing according to claim 1, it is characterized in that: described permanent magnetism magnetic suspension thrust-bearing (22) comprises outer ring (1), in outer ring (1), be provided with coaxial sleeve be fixed on that axle (21) is upper and with the axial inner ring (2) of axle (21) synchronous rotary and radial inner ring (3), axial inner ring (2) and radial inner ring (3) all arrange with outer ring (1) coaxial sleeve and form respectively not contact and be rotatably assorted; On the exterior edge face, axial both sides of described axial inner ring (2) and the diaxon of the outer ring (1) corresponding with this exterior edge face, axial both sides is corresponding respectively on inner wall end surface arranges corresponding permanent magnet, the interaction of above-mentioned permanent magnet be axle (21) provider to contrary bidirectional axial force with the axial float of restrictive axes (21); On the radial outer peripheral surface of described radial inner ring (3) and the radial inner peripheral surface of the outer ring (1) corresponding with this radial outer peripheral surface be provided with the identical permanent magnet of polarity, the interaction of permanent magnet herein then provides radial suspension force for axle (21).
3. the composite structure of permanent magnetism magnetic suspension bearing according to claim 2, it is characterized in that: the axial both sides end face of described axial inner ring (2) is respectively equipped with axial internal magnetic ring one (4) and axial internal magnetic ring two (6), and the axial inner wall end surface of the outer ring (1) corresponding with the axial end of the axial inner ring (2) arranging axial internal magnetic ring one (4) is provided with axial outer magnetic ring one (5), the axial inner wall end surface of the outer ring (1) corresponding with the axial end of the axial inner ring (2) arranging axial internal magnetic ring two (6) is provided with axial outer magnetic ring two (7), and be provided with air gap between axial internal magnetic ring one (4) and axial outer magnetic ring one (5) and be provided with air gap between axial internal magnetic ring two (6) and axial outer magnetic ring two (7), then axial internal magnetic ring one (4) and axial outer magnetic ring one (5), axial internal magnetic ring two (6) and axial outer magnetic ring two (7) are configured to axle (21) provider to contrary bidirectional axial force with the permanent magnet of the axial float of restrictive axes (21).
4. the composite structure of permanent magnetism magnetic suspension bearing according to claim 2, it is characterized in that: described axial internal magnetic ring one (4), axial outer magnetic ring one (5), axial internal magnetic ring two (6), the equal axial charging of axial outer magnetic ring two (7), the identical generation repulsion of end face pole polarity that described axial internal magnetic ring one (4) is just right with axial outer magnetic ring one (5), and the end face pole polarity also identical generation repulsion that axial internal magnetic ring two (6) is just right with axial outer magnetic ring two (7), be overall circular permanent magnet and the interaction by air gap between the identical axial internal magnetic ring one (4) of rear longitudinal center line and axial outer magnetic ring one (5) is installed, the axial inner ring (2) be fixed on axle (21) is made to be subject to the contrary vertical repulsive force in direction thus the axial float of restrictive axes (21) by the interaction of air gap between axial internal magnetic ring two (6) and axial outer magnetic ring two (7).
5. the composite structure of permanent magnetism magnetic suspension bearing according to claim 2, it is characterized in that: the radial outer peripheral surface of described radial inner ring (3) is provided with radial internal magnetic ring (8), the radial inner peripheral surface of the outer ring (1) corresponding with the radial outer peripheral surface of the radial inner ring (3) arranging radial internal magnetic ring (8) is provided with radial outer magnetic ring (9), and is provided with air gap between radial internal magnetic ring (8) and radial outer magnetic ring (9) and makes radial internal magnetic ring (8) and radial outer magnetic ring (9) be configured to the permanent magnet that axle (21) provides radial suspension force; The axial outer end place of the radial outer magnetic ring (9) simultaneously on described outer ring (1) is provided with the outer end cap (10) of axially-fixed and radial outer magnetic ring (9), and radial internal magnetic ring (8) the axial outer end face place on radial inner ring (3) is provided with the inner end cap (11) limiting radial internal magnetic ring (8) further.
6. the composite structure of permanent magnetism magnetic suspension bearing according to claim 5, it is characterized in that: described radial internal magnetic ring (8) and radial outer magnetic ring (9) all radial magnetizing and identical generation repulsion of pole polarity on the radial outer peripheral surface of radial internal magnetic ring (8) the radial inner peripheral surface just right with radial outer magnetic ring (9), be overall circular permanent magnet and the interaction passing through air gap between the radial internal magnetic ring (8) that longitudinal center line is identical after installing and radial outer magnetic ring (9) then provides radial suspension force for axle (21).
7. the composite structure of permanent magnetism magnetic suspension bearing according to claim 2, it is characterized in that: described outer ring (1) comprises magnetic support one (12), outer connecting base (13) and magnetic support two (14), two axial ends of outer connecting base (13) can hold the outer ring (1) of axial inner ring (2) and radial inner ring (3) respectively by the magnetic support one (12) of adjustment pad (15) and screw (16) and its both sides and magnetic support two (14) formation that is fixedly linked, the radial outside that outer connecting base (13) is positioned at axial inner ring (2) makes outer connecting base (13) and the coaxial sleeve of axial inner ring (2) arrange and form not contact to be rotatably assorted, the axial both sides that magnetic support one (12) and magnetic support two (14) then lay respectively at axial inner ring (2) make the axial inner wall end surface of magnetic support one (12) be provided with axial outer magnetic ring one (5), the axial inner wall end surface of magnetic support two (14) is provided with axial outer magnetic ring two (7), the radial inner peripheral surface of the thrust ring (17) that the exterior edge face of described magnetic support two (14) is arranged vertically is then just rotatably assorted to being arranged so that the thrust ring (17) of magnetic support two (14) arranges with radial inner ring (3) coaxial sleeve and forms not contact with the radial outer peripheral surface of radial inner ring (3), and the radial inner peripheral surface of thrust ring (17) is arranged the radial internal magnetic ring (8) that radial outer magnetic ring (9) and the radial outer peripheral surface of radial inner ring (3) are arranged and interact and provide radial suspension force for axle (21).
8. the composite structure of permanent magnetism magnetic suspension bearing according to claim 2, it is characterized in that: described radial inner ring (3) and axial inner ring (2) respectively coaxial sleeve are fixed on axle (21), wherein the axial side of radial inner ring (3) by the shaft shoulder (18) axially locating and its opposite side by bearing spacer (19) axial restraint; And the side of axial inner ring (2) and radial inner ring (3) share same bearing spacer (19) axially locating and the opposite side of axial inner ring (2) employing round nut (20) axial restraint, thus make radial inner ring (3) and axial inner ring (2) that axle (21) synchronous rotary can be followed.
9. the composite structure of permanent magnetism magnetic suspension bearing according to claim 1, it is characterized in that: described permanent magnetism magnetic suspension bearing (23) comprises outer magnetic ring (24) and interior magnetosphere (26), outer magnetic ring (24) and interior magnetosphere (26) do not contact and to be rotatably assorted and coaxial sleeve is arranged; Outer magnetic ring (24) arranges radial outer magnetic ring two (25) on the inner peripheral surface of interior magnetosphere (26), the outer peripheral surface of interior magnetosphere (26) magnetosphere (24) is toward the outside oppositely arranged radial internal magnetic ring two (27), and radial outer magnetic ring two (25) is provided with air gap between the two with radial internal magnetic ring two (27) and the identical generation repulsion of both relative circumferential surface pole polarity thus provide radial suspension force to axle (21).
10. the composite structure of permanent magnetism magnetic suspension bearing according to claim 9, it is characterized in that: the axial side of described interior magnetosphere (26) is by the shaft shoulder (18) axially locating and its opposite side adopts round nut (20) to be axially fixed on axle (21), thus makes interior magnetosphere (26) can follow axle (21) synchronous rotary.
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| CN201520272688.9U CN204572785U (en) | 2015-04-30 | 2015-04-30 | A kind of composite structure of permanent magnetism magnetic suspension bearing |
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| CN201520272688.9U CN204572785U (en) | 2015-04-30 | 2015-04-30 | A kind of composite structure of permanent magnetism magnetic suspension bearing |
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