CN209344982U - Adjustable magnetic ring - Google Patents

Abstract

The utility model discloses a kind of adjustable magnetic rings, the adjustable magnetic ring includes non-magnetic ring body and multiple magnetic inductive blocks, ring body has the first end ring, second end ring and multiple parting beads, the first end of parting bead is connected and integrally formed with the first end ring, the second end of parting bead is detachably connected with the second end ring, multiple circumferentially spaced arrangements of parting bead, mounting groove is formed between adjacent parting bead, on the radial section of ring body, mounting groove has first end radially, the second end and the interlude between first end and the second end, the size of at least part of interlude in the circumferential is greater than the size of first end and the second end in the circumferential, the cross-sectional profiles of magnetic inductive block are adapted to profile of the mounting groove on the radial section of ring body, magnetic inductive block is mounted in mounting groove.The adjustable magnetic ring of the utility model has enough bearing capacitys and stiffness and strength, is unlikely to deform, and is conducive to use as power transmission arrangment.

Description

Adjustable magnetic ring

Technical field

The utility model relates to magnetic gear technique fields, more particularly, to a kind of adjustable magnetic ring.

Background technique

Permanent-magnet variable-speed machine is the ideal chose of transmission field, and driving wheel and driven wheel are not physically contacted, and utilizes permanent magnetism Active force between body magnetic field is driven, it can be achieved that high-performance, highly reliable power and movement transmitting.Permanent-magnet variable-speed machine includes three A main component: internal magnetic ring, outer magnetic ring and adjustable magnetic ring fix one of component, and other two component is as mover, with reality The no-load voltage ratio function of existing speed and power.

Summary of the invention

The application is to be made based on inventor to following technical problem and true discovery and research:

Document CN101841280 B discloses a kind of concentric magnetic-gear using squirrel-cage magnetic regulating device, the concentric magnetic Powershift gear includes that inner permanent magnetic structure, middle part magnetism-regulating structure and external permanent-magnet structure, middle part magnetism-regulating structure are in inner permanent magnetic knot Between structure and external permanent-magnet structure, wherein support construction is made using non-magnet material in middle part magnetism-regulating structure, and in support construction Upper fixed quantity is the adjustable magnetic iron block made of soft magnetic materials of R, to form mouse cage type structure.

The concentric magnetic-gear that above-mentioned document discloses has the following problems: middle part magnetism-regulating structure is as stator, for carrying Ability and strength and stiffness are of less demanding, only meet adjustable magnetic performance.And by middle part magnetism-regulating structure be used as rotor in use, Middle part magnetism-regulating structure is easy to produce deformation in the process of running.

However, needing to transmit torque, to bearing capacity and strength and stiffness when being used as rotor due to middle part magnetism-regulating structure Requirement with higher, in the prior art due to designing the problem with processing technology etc., magnetism-regulating structure not can guarantee bearing capacity And intensity and height, deformation is easy to produce in operational process, causes operation form of the magnetism-regulating structure as power transmission arrangment It is difficult to realize.

For this purpose, the utility model is intended to solve at least some of the technical problems in related technologies.This reality A kind of adjustable magnetic ring is proposed with novel, which has enough bearing capacitys and strength and stiffness, is not easy up to deformation, benefit It is used in as power transmission arrangment.

The adjustable magnetic ring of embodiment according to the present utility model includes: non-magnetic ring body, the ring body have the first end ring, Second end ring and multiple parting beads, the parting bead have a first end and a second end, the first end of the parting bead and first end ring It is connected, and the parting bead and first end ring are integrally formed, the second end of the parting bead and second end ring are removably It is connected, multiple parting beads form mounting groove between adjacent parting bead, in the ring body along the circumferentially-spaced arrangement of the ring body On radial section, the mounting groove radially has first end, the second end and positioned at the first end the ring body Interlude between portion and the second end, wherein ruler of at least part of the interlude in the circumferential direction of the ring body It is very little greater than the first end in the circumferential direction of the ring body size and the second end in the circumferential direction of the ring body Size；Multiple magnetic inductive blocks, the cross-sectional profiles of the magnetic inductive block and wheel of the mounting groove on the radial section of the ring body Exterior feature adaptation, the magnetic inductive block are mounted in the mounting groove.

Adjustable magnetic ring according to the utility model embodiment includes non-magnetic ring body and the intracorporal magnetic inductive block of multiple embedded rings, It applies and carries out adjustable magnetic in magnetic gear.By by the mounting groove in ring body be designed to ring body the i.e. ring body of radial section it is transversal On face, mounting groove is in the circumferential having a size of structure broad in the middle and small in ends, and by the geomery of magnetic inductive block and mounting groove Geomery is adapted；Since the second end of the second end ring and parting bead is detachably connected, in magnetic inductive block and ring body installation process In, the second end ring can be unloaded from parting bead, and magnetic inductive block is led from second end being axially inserted into mounting groove along ring body of ring body Second end ring is connected by magnetic patch with parting bead again after being installed, and is achieved in the assembly of magnetic inductive block and ring body, and magnetic inductive block can It is more reliably fastened in the mounting groove between adjacent parting bead, so that adjustable magnetic ring is with enough bearing capacitys and intensity and just Degree, is unlikely to deform, and is conducive to use as power transmission arrangment, can satisfy the transmission demand of high torque.

In some embodiments, on the radial section of the ring body, the mounting groove is in the circumferential direction of the ring body Size is gradually reduced from the center of the mounting groove towards the first end and the second end.

In some embodiments, on the radial section of the ring body, the two sidewalls of the mounting groove are arc.

In some embodiments, on the radial section of the ring body, the mounting groove is in substantially cross.

In some embodiments, the magnetic inductive block is formed by multiple soft magnetic sheets are stacked, between adjacent soft magnetic sheet It is bonded to one another and is isolated by non-conductive adhesive layer.

In some embodiments, the soft magnetic sheet is iron plate, low-carbon steel disc, iron Si system alloy piece, iron aluminum series alloy Piece, iron sial system alloy sheet, ferronickel system alloy sheet, iron Co-based alloy piece, soft magnetic ferrite piece, amorphous soft magnetic alloy piece or super Microcrystalline soft magnetic alloy sheet.

In some embodiments, the soft magnetic sheet is amorphous soft magnetic alloy piece.

In some embodiments, the ring body is nonmagnetic metal ring body, nonmagnetic alloy ring body, glass reinforced plastic ring body, glass Glass fiber ring body, ceramic ring body, carbon fiber ring body or resin material ring body.

In some embodiments, the ring body is titanium alloy ring body.

In some embodiments, multiple mounting grooves are arranged along the circumferential uniform intervals of the ring body.

Detailed description of the invention

Fig. 1 is the structural schematic diagram according to the adjustable magnetic ring of the utility model embodiment.

Fig. 2 is the structural schematic diagram of the first end ring and parting bead according to the adjustable magnetic ring of the utility model embodiment.

Fig. 3 is the local radial schematic cross-section according to the mounting groove of the adjustable magnetic ring of the utility model embodiment.

Fig. 4 is the structural schematic diagram according to the magnetic inductive block of the adjustable magnetic ring of the utility model embodiment.

Fig. 5 is the cross-sectional view according to the magnetic inductive block of the adjustable magnetic ring of the utility model embodiment.

Fig. 6 is the Longitudinal cross section schematic according to the magnetic inductive block of the adjustable magnetic ring of the utility model embodiment.

Fig. 7 is the structural schematic diagram according to the second end ring of the adjustable magnetic ring of the utility model embodiment.

Appended drawing reference:

Ring body 1, the first end ring 11, the second end ring 12, parting bead 13, mounting groove 14, first end 141, the second end 142, Interlude 143, magnetic inductive block 2.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as practical new to this The limitation of type.In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.

Adjustable magnetic ring according to the utility model embodiment is described below.

It as shown in figs. 1-7, include non-magnetic ring body 1 and multiple magnetic inductive blocks according to the adjustable magnetic ring of the utility model embodiment 2.Ring body 1 has the first end ring 11, the second end ring 12 and multiple parting beads 13, and parting bead 13 has first end (Fig. 1, parting bead shown in 2 13 right end) and second end (left end of Fig. 1, parting bead 13 shown in 2), first end (Fig. 1, parting bead 13 shown in 2 of parting bead 13 Right end) be connected with the first end ring 11, and parting bead 13 and the first end ring 11 are integrally formed, the second end of parting bead 13 (Fig. 1, shown in 2 The left end of parting bead 13) it is detachably connected with the second end ring 12.Term " first ", " second " in the description of the present invention, It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technical characteristic Quantity." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.

In other words, as shown in Figure 1, 2, the first end ring 11 and the second end ring 12 are separated from each other and each other in the lateral direction Relatively, parting bead 13 is located between the first end ring 11 and the second end ring 12, and the left side of the right end of parting bead 13 and the first end ring 11 It is connected, the left end of parting bead 13 is connected with the right side of the second end ring 12, and wherein parting bead 13 is structure as a whole with the first end ring 11, with Second end ring 11 is detachably connected, and as shown in Fig. 1,7, i.e., the second end ring 11 is mountable on parting bead 13, can also be from parting bead 13 On unload.

Multiple parting beads 13 form mounting groove 14 between adjacent parting bead 13 along the circumferentially-spaced arrangement of ring body 11.In other words, more A parting bead 13 forms an installation between each adjacent two parting bead along the circumferentially-spaced arrangement of the first end ring 11 or the second end ring 12 Slot 14, then mounting groove 14 have it is multiple, multiple mounting grooves 14 along the first end ring 11 or the second end ring 12 circumferentially-spaced arrangement, and Adjacent fitting grooves 14 are separated by parting bead 13.Specifically, multiple parting beads 13 are arranged along the circumferential uniform intervals of ring body 1.In other words, phase The distance between adjacent parting bead 13 is identical, i.e., size of multiple mounting grooves 14 in the circumferential direction of ring body 1 is identical.In the utility model In description, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.

As Figure 2-3, on the radial section of ring body 1 (cross section of ring body 1), radial direction of the mounting groove 14 in ring body 1 It is upper that there is first end 141, the second end 142 and the interlude 143 between first end 141 and the second end 142, Size of at least part of the interlude 143 of middle mounting groove 14 in the circumferential direction of ring body 1 is greater than first end 141 in ring body 1 Circumferential direction on size in the circumferential direction of ring body 1 of size and the second end 142.In other words, on the cross section of ring body 1, peace Size of the tankage 14 in the circumferential direction of ring body 1 be it is broad in the middle, it is small in ends, wherein the intermediate centre bit for being not limited to mounting groove 14 It sets.

Here, it is to be understood that first end 141 and the second end 142 broadly understood, and first end 141 is simultaneously Mounting groove 14 is not limited in the first end face radially of ring body 1, can also be the first end face from mounting groove 14 along ring body 1 The second end that is radially orientated extend a distance into；The second end 142 be not limited to mounting groove 14 ring body 1 radially Second end face can also be to extend a distance into from the second end face of mounting groove 14 along the first end that is radially orientated of ring body 1.

Moreover, interlude 143 is construed as the region between first end 141 and the second end 142, and " centre " is simultaneously Be not limited to the center of mounting groove 14, as a result, interlude 143 be not limited to include mounting groove 14 middle position, It is symmetrical relative to the center of mounting groove 14 to be not limited to the length in the radial direction of interlude 143.

The cross-sectional profiles of magnetic inductive block 2 are adapted to profile of the mounting groove 14 on the radial section of ring body 1, and magnetic inductive block 2 is pacified In mounting groove 14.In other words, the shape and size of magnetic inductive block 2 are consistent with the shape and size of mounting groove 14, such as Fig. 4,5 institutes Show, magnetic inductive block 2 radially has both ends and the interlude between both ends ring body 1, and wherein interlude is at least A part is greater than size of the both ends in the circumferential direction of ring body 1 in the size in the circumferential direction of ring body 1, i.e., magnetic inductive block 2 is in ring body 1 Size radially is broad in the middle, both ends is big, to be adapted with the geomery of mounting groove 14, to prevent magnetic inductive block 2 from peace It falls off in tankage 14.Here, it is to be understood that multiple magnetic inductive blocks 2 are mounted on multiple mounting grooves 14 correspondingly, i.e., each One magnetic inductive block 2 is installed in mounting groove 14.

It is understood that being applied in magnetic gear according to the adjustable magnetic ring of the utility model embodiment, that is, it is located at magnetic gear Outer magnetic ring and internal magnetic ring between, the magnetic line of force between cleavable outer magnetic ring and internal magnetic ring, to play the role of adjustable magnetic, thus real The no-load voltage ratio function of existing speed and power.

Adjustable magnetic ring according to the utility model embodiment includes the magnetic conduction in non-magnetic ring body 1 and multiple insertion ring bodies 1 Block 2 is applied and carries out adjustable magnetic in magnetic gear.By the way that the mounting groove 14 in ring body 1 to be designed to the radial section i.e. ring in ring body 1 On the cross section of body 1, mounting groove 14 is in the circumferential having a size of structure broad in the middle and small in ends, and by the shape ruler of magnetic inductive block 2 The very little geomery with mounting groove 14 is adapted；Since the second end of the second end ring 12 and parting bead 13 is detachably connected, leading In magnetic patch 2 and 1 installation process of ring body, the second end ring 12 can be unloaded from parting bead 13, and by magnetic inductive block 2 from the second end of ring body 1 Along being axially inserted into mounting groove 14 for ring body 1, the second end ring 12 is connected by magnetic inductive block 2 with parting bead 13 again after being installed, thus Realize the assembly of magnetic inductive block 2 and ring body 1, and magnetic inductive block 2 can more reliably be fastened on the mounting groove 14 between adjacent parting bead 13 It is interior.Thus manufacture and assemble it is relatively easy, and adjustable magnetic ring have enough bearing capacitys and strength and stiffness, be unlikely to deform, It is used conducive to as power transmission arrangment, can satisfy the transmission demand of high torque.

In some optionally embodiments, as shown in figure 3, mounting groove 14 is in ring body 1 on the radial section of ring body 1 Size in circumferential direction is from the center of mounting groove 14 towards first end 141 (upper end shown in Fig. 3) and the second end 142 (lower end shown in Fig. 3) is gradually reduced.In other words, on the cross section of ring body 1, mounting groove 14 is in the axial direction of ring body 1 The center of size, mounting groove 14 is maximum, and is gradually reduced respectively up and down.

Further, on the radial section of ring body 1, the two sidewalls of mounting groove 14 are arc.In other words, mounting groove 14 Distinguish arc-shaped transition, and the two sidewalls evagination of mounting groove 14 up and down from the center of mounting groove 14, i.e., it is two neighboring The opposite side indent of parting bead 13.

It is understood that be adapted to the profile of the radial section of the mounting groove 14 in the embodiment, in magnetic inductive block 2 On cross section, as shown in figure 5, the length of magnetic inductive block 2 in the lateral direction from the center of magnetic inductive block 2 up and down gradually Reduce, and the left side of magnetic inductive block 2 and right side are arc.

In other optionally embodiment, on the radial section of ring body 1, mounting groove 14 is in substantially cross.It can be with Understand, mounting groove 14 is not limited to this in the shape of the radial section of ring body 1, as long as meeting in the circumferential direction of ring body 1 At least part of size, interlude 143 is greater than first end 141 and the second end 142.

In some embodiments, as shown in fig. 6, magnetic inductive block 2 is formed by multiple soft magnetic sheets 21 are stacked, adjacent soft magnetism material It is bonded to one another and is isolated by non-conductive adhesive layer 22 between tablet 21.In other words, magnetic inductive block 2 includes multiple soft magnetic sheets 21 and multiple non-conductive adhesive layers 22, and soft magnetic sheet 21 and non-conductive adhesive layer 22 are alternately arranged one by one and fold each other Be added together, i.e., magnetic inductive block 2 in the production process, according to soft magnetic sheet 21, non-conductive adhesive layer 22, soft magnetic sheet 21, its soft magnetic sheet 21 and non-conductive adhesive layer 22 are superimposed by the arrangement mode of non-conductive adhesive layer 22 ... Magnetic inductive block 2 is made.

According to the adjustable magnetic ring of the utility model embodiment, magnetic inductive block is made by using soft magnetic materials and nonconductive adhesive 2, it can be improved the magnetic property of magnetic inductive block 2, to replace existing core material using high-performance permeability magnetic material, can reduce Loss improves transmission efficiency.Thus adjustable magnetic ring is arranged to the embedded structure with the magnetic inductive block of high-performance permeability magnetic material, energy The eddy-current loss for enough reducing adjustable magnetic ring, reduces the intracorporal temperature of gearbox, improves the efficiency of permanent-magnet variable-speed machine.Moreover, logical Crossing can be by two neighboring soft magnetism material while two neighboring soft magnetic sheet 21 is bonded together by non-conductive adhesive layer 22 Tablet 21 is kept apart, so that magnetic field is formed in each soft magnetic sheet 21, is reduced the iron loss such as eddy-current loss and magnetic hystersis loss, is subtracted Few fever, improves adjustable magnetic performance.

Further, soft magnetic sheet 21 is iron plate, low-carbon steel disc, iron Si system alloy piece, iron aluminum series alloy piece, iron sial It is alloy sheet, ferronickel system alloy sheet, iron Co-based alloy piece, soft magnetic ferrite piece, amorphous soft magnetic alloy piece or ultracrystallite soft magnetism Alloy sheet.In other words, soft magnetic materials can be iron, mild steel, iron Si system alloy, iron aluminum series alloy, iron silicon aluminum series alloy, ferronickel It is alloy, iron Co-based alloy, soft magnetic ferrite, amorphous soft magnetic alloy or super-microcrystalline soft magnetic alloy etc..It is understood that The utility model is not limited to this.

In some specifically embodiments, soft magnetic sheet 21 is amorphous soft magnetic alloy piece.In other words, in the embodiment In, soft magnetic materials is amorphous soft magnetic alloy.It is understood that the utility model is not limited to this.

Further, amorphous soft magnetic alloy piece with a thickness of 0.025mm.In other words, each amorphous soft magnetic alloy piece On the longitudinal direction of magnetic inductive block 2 be ring body 1 axial direction on length be 0.025mm.

In some embodiments, ring body 1 is nonmagnetic metal ring body, nonmagnetic alloy ring body, glass reinforced plastic ring body, glass fibers Tie up ring body, ceramic ring body, carbon fiber ring body or resin material ring body.In other words, the material of ring body 1 can for nonmagnetic metal, Nonmagnetic alloy, glass reinforced plastic, glass fibre, ceramics, carbon fiber or resin material etc., the utility model is not limited to this, example If the material of ring body 1 can also be non-magnetic non-conductive material, such as plastics, high molecular material or composite material etc..

It is understood that by using above-mentioned high-intensitive non-magnet material by 11 1 bodily form of parting bead 13 and the first end ring At the overall stiffness and intensity of adjustable magnetic ring capable of being further ensured that, so that adjustable magnetic ring can be used for the carrying of permanent-magnet variable-speed machine And power transmission.It under variable-speed motor equal-wattage parameter, uses, can obtain maximum using adjustable magnetic ring as power transmission port Transmission ratio and thrust.

In some specifically embodiments, ring body 1 is titanium alloy ring body.In other words, ring body 1 is made of titanium alloy.It can be with Understand, the utility model is not limited to this.

Below with reference to the accompanying drawings 1-7 describes the adjustable magnetic ring according to the utility model specific embodiment.

It as shown in figs. 1-7, include non-magnetic ring body 1 and multiple magnetic inductive blocks according to the adjustable magnetic ring of the utility model embodiment 2.Wherein ring body 1 is made of titanium alloy.Magnetic inductive block 2 is formed by multiple soft magnetic sheets 21 are stacked, adjacent soft magnetic sheet 21 it Between be bonded to one another and be isolated by non-conductive adhesive layer 22, wherein soft magnetic sheet 21 is amorphous soft magnetic alloy piece.

Ring body 1 has the first end ring 11, the second end ring 12 and multiple parting beads 13, and the first end ring 11 and the second end ring 12 are on a left side It being separated from each other in right direction and opposite to each other, parting bead 13 is located between the first end ring 11 and the second end ring 12, and parting bead 13 Right end is connected with the left side of the first end ring 11, and the left end of parting bead 13 is connected with the right side of the second end ring 12, wherein parting bead 13 It is structure as a whole with the first end ring 11, is detachably connected with the second end ring 11.

Multiple parting beads 13 are arranged along the circumferential uniform intervals of ring body 11, and mounting groove 14 is formed between adjacent parting bead 13.

On the radial section (cross section of ring body 1) of ring body 1, mounting groove 14 radially has first end ring body 1 Portion 141 and the second end 142 and the interlude 143 between first end 141 and the second end 142 have on interlude 143 There is a center of mounting groove 14, and size of the mounting groove 14 in the circumferential direction of ring body 1 is from the center direction of mounting groove 14 First end 141 and the second end 142 are gradually reduced, and the two sidewalls of mounting groove 14 are arc.

The shape and size of magnetic inductive block 2 are consistent with the shape and size of mounting groove 14, and as shown in Figure 4,5, magnetic inductive block 2 is in ring Body 1 radially has both ends, wherein on the cross section of ring body 1, size of the magnetic inductive block 2 in the circumferential direction of ring body 1 is from leading The both ends of the middle position of magnetic patch 2 towards magnetic inductive block 2 are gradually reduced, i.e., magnetic inductive block 2 is in the size radially of ring body 1 is Between it is big, both ends are big, to be adapted with the geomery of mounting groove 14.Multiple magnetic inductive blocks 2 are mounted on multiple installations correspondingly Slot 14 is equipped with a magnetic inductive block 2 in that is, each mounting groove 14.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection is also possible to be electrically connected or can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through Even, the connection inside two elements or the interaction relationship of two elements be can be, unless otherwise restricted clearly.For this For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims (10)

1. a kind of adjustable magnetic ring characterized by comprising

Non-magnetic ring body, the ring body have the first end ring, the second end ring and multiple parting beads, the parting bead have first end and Second end, the first end of the parting bead are connected with first end ring, and the parting bead and first end ring are integrally formed, institute The second end and second end ring for stating parting bead are detachably connected, circumferentially-spaced cloth of multiple parting beads along the ring body Set, form mounting groove between adjacent parting bead, on the radial section of the ring body, the mounting groove the ring body radially With first end, the second end and the interlude between the first end and the second end, wherein in described Between section at least part the size in the circumferential direction of the ring body be greater than the first end in the circumferential direction of the ring body The size of size and the second end in the circumferential direction of the ring body；

Multiple magnetic inductive blocks, the cross-sectional profiles of the magnetic inductive block and profile of the mounting groove on the radial section of the ring body Adaptation, the magnetic inductive block are mounted in the mounting groove.

2. adjustable magnetic ring according to claim 1, which is characterized in that on the radial section of the ring body, the mounting groove Size in the circumferential direction of the ring body is from the center of the mounting groove towards the first end and the second end It is gradually reduced.

3. adjustable magnetic ring according to claim 2, which is characterized in that on the radial section of the ring body, the mounting groove Two sidewalls be arc.

4. adjustable magnetic ring according to claim 1, which is characterized in that on the radial section of the ring body, the mounting groove In substantially cross.

5. adjustable magnetic ring according to claim 1, which is characterized in that the magnetic inductive block be stacked by multiple soft magnetic sheets and At being bonded to one another and be isolated by non-conductive adhesive layer between adjacent soft magnetic sheet.

6. adjustable magnetic ring according to claim 5, which is characterized in that the soft magnetic sheet is iron plate, low-carbon steel disc, iron silicon Be alloy sheet, iron aluminum series alloy piece, iron sial system alloy sheet, ferronickel system alloy sheet, iron Co-based alloy piece, soft magnetic ferrite piece, Amorphous soft magnetic alloy piece or super-microcrystalline soft magnetic alloy piece.

7. adjustable magnetic ring according to claim 6, which is characterized in that the soft magnetic sheet is amorphous soft magnetic alloy piece.

8. adjustable magnetic ring according to claim 1, which is characterized in that the ring body is nonmagnetic metal ring body, non magnetic conjunction Golden ring body, glass reinforced plastic ring body, glass fibre ring body, ceramic ring body, carbon fiber ring body or resin material ring body.

9. adjustable magnetic ring according to claim 1, which is characterized in that the ring body is titanium alloy ring body.

10. adjustable magnetic ring according to claim 1 to 9, which is characterized in that multiple mounting grooves are along the ring The circumferential uniform intervals of body are arranged.