CN103904860A - Coaxial sleeve type permanent magnetic eddy-current coupler with fixed end face - Google Patents
Coaxial sleeve type permanent magnetic eddy-current coupler with fixed end face Download PDFInfo
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- CN103904860A CN103904860A CN201410095375.0A CN201410095375A CN103904860A CN 103904860 A CN103904860 A CN 103904860A CN 201410095375 A CN201410095375 A CN 201410095375A CN 103904860 A CN103904860 A CN 103904860A
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Abstract
The invention provides a coaxial sleeve type permanent magnetic eddy-current coupler with a fixed end face and belongs to the technical field of permanent magnetic eddy-current transmission. The coaxial sleeve type permanent magnetic eddy-current coupler with the fixed end face can ensure automatic coaxial positioning in the installation and running process and greatly reduces the installation difficulty and workloads, the gravity and external acting force applied on the permanent magnetic eddy-current coupler can be directly transmitted to a stator of a motor in the operating process, and a rotary shaft system of the motor can be prevented from bearing additional external force. The coaxial sleeve type permanent magnetic eddy-current coupler comprises a driving rotor, a driven rotor and an end face locating base, wherein the driving rotor, the driven rotor and the end face locating base are coaxially arranged. The driving rotor serves as an outer rotor and is composed of a driving rotor body and a vortex ring or a permanent magnet layer fixedly arranged on the driving rotor body. The driving rotor body is composed of a hollow mandrel, an outer lining cylinder and a middle supporting plate. The end face locating base is arranged on the hollow mandrel. The end face locating base is composed of an end face locating disk and a bearing pedestal. The driven rotor serves as an inner rotor and is composed of an end cover shaft, a cylindrical driven rotor body and a vortex ring or a permanent magnet layer fixedly arranged on the driven rotor body.
Description
Technical field
The invention belongs to permanent-magnet eddy current drive technology field, particularly the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of a kind of end face.
Background technology
The basic functional principle of permanent-magnet eddy current drive technology is: in the time of permanent magnet rotor and the motion for the relative rotation of ring of eddy rotor, the permanent magnet that in permanent magnet rotor, pole orientation is alternately arranged can produce alternating magnetic field in the ring of eddy of being made up of electric conducting material, and then generate the eddy current of alternation therein, this eddy current produces again Induced magnetic field in ring of eddy, stationary magnetic field in Induced magnetic field and permanent magnet rotor interacts, just between two rotors, produce coupling torque, thereby reach the effect of transmitting motion and moment of torsion.The version of permanent magnetic vortex drive device mainly contains two kinds of socket type peace dish-types at present, and its application mainly comprises permanent magnet eddy current coupling (driver) and permanent-magnet eddy current speed regulator.Wherein telescopic permanent magnet eddy current coupling, has that structure is small and exquisite, weight is light, vibrate the design features such as little, permanent magnetic material efficiency is high, eddy current loss is little, the application of succeeding in workplaces such as requiring flexible startup, blocking rotation, limit torque and damping vibration-isolating.
But, existing permanent-magnet eddy current transmission patented technology, generally the positioning connection of permanent magnet rotor and ring of eddy rotor is paid close attention to not, existing coaxial sleeve cartridge type permanent magnet eddy current coupling product, normally adopts one of following two kinds of modes to realize two rotors location is installed: a kind of is to utilize connecting bushing to be directly sleeved on the drive shaft of prime mover or load rotor block; Another kind is special support to be set two rotors are supported respectively, and recycling shaft coupling parts, couple together the rotating shaft of the rotating shaft of prime mover and load and two rotors.All there is obvious deficiency in these two kinds of connected modes: front a kind of connected mode is by weight all rotor and the stressed rotating shaft that all directly puts on prime mover or load, especially in the time directly belt pulley or gear being installed, there is larger radial effect power, greatly increase the stressed of prime mover or load rotating shaft support bearing, thereby cause the severe of its working condition, the increase of vibrating noise, the reduction of useful working life; Rear a kind of connected mode is owing to having increased by one or two cover supports, make to guarantee between prime mover, load and support that the coaxial positioning of rotating shaft is more difficult, bring very big inconvenience to installation exercise, while also operation to system, bring more exciting source and uncertain adverse factor simultaneously.Therefore, develop more rational permanent magnet eddy current coupling positioning connection structure, there is the clear and definite market demand.
Summary of the invention
The problem existing for prior art, the invention provides the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of a kind of end face, compared with common coaxial sleeve cartridge type permanent magnet eddy current coupling, coaxial sleeve cartridge type permanent magnet eddy current coupling of the present invention is directly installed on the front end face locating flange of motor, can automatically guarantee the coaxial positioning in installation and running, greatly simplify installation difficulty and reduced workload, in servicely gravity suffered permanent magnet eddy current coupling and outer active force can be directly passed to motor stator, avoid motor rotary shaft system to bear additional external force.
To achieve these goals, the present invention adopts following technical scheme:
The coaxial sleeve cartridge type permanent magnet eddy current coupling that end face is fixing, comprises power rotor, driven rotor and the end face positioning seat of coaxial setting; Power rotor, as external rotor, is made up of power rotor body and the ring of eddy or the permanent magnet layer that are fixedly installed on power rotor body; Power rotor body is made up of air-cored axis, external liner assembly and middle support plate, and air-cored axis is cylinder type, is arranged on power rotor body center, and middle support plate is fixedly installed on the lateral wall middle part of air-cored axis; External liner assembly is cylinder type, is fixedly installed on middle support plate, and coaxially arranges with air-cored axis; Described end face positioning seat is arranged in air-cored axis, end face positioning seat is made up of end face positioning disk and the bearing pedestal being fixed on end face positioning disk, on the outer face of end face positioning disk, be provided with stepped ramp type seam, between bearing pedestal and the air-cored axis of power rotor body, be connected by location bearing; On bearing pedestal, be provided with bearing pedestal lubricating cup, bearing pedestal lubricating cup is connected with the inside of location bearing by the bearing pedestal oil circuit being arranged on bearing pedestal sidewall; Described driven rotor, as internal rotor, is made up of the driven rotor body of end-cover axle, cylinder type and ring of eddy or the permanent magnet layer being fixedly installed on driven rotor body; Driven rotor body is arranged between the air-cored axis and external liner assembly of power rotor body, end-cover axle is arranged on the outer face of driven rotor body, end-cover axle is made up of end cap and the driven shaft or the driven axle sleeve that are fixed on end cap middle part, and the air-cored axis of driven shaft or driven axle sleeve and power rotor body coaxially arranges; End cap is fixedly connected with driven rotor body; Between the air-cored axis of driven rotor body and power rotor body, be connected by transition bearing, be provided with end cap lubricating cup on end cap, end cap lubricating cup is connected with the inside of transition bearing by the end cap oil circuit being arranged on driven rotor body and end cap; Described ring of eddy or permanent magnet layer are coaxially fixed on the madial wall of external liner assembly of power rotor body, and permanent magnet layer or ring of eddy are coaxially fixed on the lateral wall of driven rotor body.
Described ring of eddy and permanent magnet layer divide following two kinds of modes to be fixed on external liner assembly or driven rotor body, first kind of way: described ring of eddy is fixed on the madial wall of external liner assembly, and permanent magnet layer is fixed on the lateral wall of driven rotor body; The second way: described ring of eddy is fixed on the lateral wall of driven rotor body, permanent magnet layer is fixed on the madial wall of external liner assembly; In these two kinds of modes, permanent magnet layer and ring of eddy are oppositely arranged, and leave gap between the two.
On the middle support plate of described power rotor body, be provided with several cooling air inlets, between cooling air inlet and permanent magnet layer, ring of eddy, gap is corresponding; On the middle support plate outer wall of described power rotor body, be provided with drainage hood, drainage hood is corresponding one by one with cooling air inlet; The windward direction of the opening of drainage hood in the time that power rotor body rotates.
The coaxial sleeve cartridge type permanent magnet eddy current coupling that end face is fixing, comprises power rotor, driven rotor and the end face positioning seat of coaxial setting; Power rotor, as internal rotor, is made up of power rotor body and the ring of eddy or the permanent magnet layer that are fixedly installed on power rotor body; Power rotor body is made up of air-cored axis, external liner assembly and middle support plate, and air-cored axis is cylinder type, is arranged on power rotor body center, and middle support plate is fixedly installed on the lateral wall middle part of air-cored axis; External liner assembly is cylinder type, is fixedly installed on middle support plate, and coaxially arranges with air-cored axis; Described end face positioning seat is arranged in air-cored axis, end face positioning seat is made up of end face positioning disk and the bearing pedestal being fixed on end face positioning disk, on the outer face of end face positioning disk, be provided with stepped ramp type seam, between bearing pedestal and the air-cored axis of power rotor body, be connected by location bearing; On bearing pedestal, be provided with bearing pedestal lubricating cup, bearing pedestal lubricating cup is connected with the gap of location bearing by the bearing pedestal oil circuit being arranged on bearing pedestal sidewall; Described driven rotor is as external rotor, formed by driven rotor body, end-cover axle and the ring of eddy or the permanent magnet layer that are fixedly installed in end-cover axle, driven rotor body is cylinder type, be arranged between the air-cored axis and external liner assembly of power rotor body, end-cover axle is made up of driven external liner assembly, end cap and the driven shaft or the driven axle sleeve that are fixed on end cap, driven external liner assembly is coaxially fixed on end cap, is positioned at the external liner assembly outside of power rotor body, and the air-cored axis of driven shaft or driven axle sleeve and power rotor body coaxially arranges; End cap is fixedly connected with driven rotor body; Between the air-cored axis of driven rotor body and power rotor body, be connected by transition bearing, be provided with end cap lubricating cup on end cap, end cap lubricating cup is connected with the inside of transition bearing by the end cap oil circuit being arranged on driven rotor body and end cap; Described ring of eddy or permanent magnet layer are coaxially fixed on the lateral wall of external liner assembly of power rotor body, and described permanent magnet layer or ring of eddy are coaxially fixed on the madial wall of driven external liner assembly.
Described ring of eddy and permanent magnet layer divide following two kinds of modes to be fixed on external liner assembly or driven external liner assembly, first kind of way: described ring of eddy is fixed on the lateral wall of external liner assembly, and permanent magnet layer is fixed on the madial wall of driven external liner assembly; The second way: described ring of eddy is fixed on the madial wall of driven external liner assembly, permanent magnet layer is fixed on the lateral wall of external liner assembly; In these two kinds of modes, permanent magnet layer and ring of eddy are oppositely arranged, and leave gap between the two.
On described end cap, be provided with several cooling air inlets, between cooling air inlet and permanent magnet layer, ring of eddy, gap is corresponding; On described end cap outer wall, be provided with drainage hood, drainage hood is corresponding one by one with cooling air inlet; The windward direction of the opening of drainage hood in the time that end cap rotates.
Be provided with magnet at the outer surface of described permanent magnet layer and seal, magnet is sealed by corrosion-resistant and is made without magnetic metal material, and magnet is sealed and leave gap between ring of eddy.
Described permanent magnet layer adopts discrete magnetic structure to form by even numbered blocks permanent-magnet block, or adopts magnetism-gathering magnetic line structure to form by even number set permanent magnet group.
Beneficial effect of the present invention:
Because shaft coupling of the present invention has adopted end face location structure, end face positioning disk is matched with B35 type motor front end boss by stepped ramp type seam, and utilization is bolted on motor stator, be outside equipped with location bearing in the air-cored axis being directly connected with motor rotary shaft, thereby make to act on whole gravity and additional forces on shaft coupling of the present invention, all pass on the front end location support of institute's adapted motor, avoided motor rotary shaft system to bear additional external force; Can structure, automatically guarantee the coaxial positioning of installation and running, greatly simplified installation difficulty and reduced workload simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment mono-of the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of the embodiment bis-of the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face of the present invention;
Fig. 4 is the B-B cutaway view of Fig. 3;
In figure, 1--motor, 11--motor rotary shaft, 12--is axle key initiatively, 2--end face positioning seat, 21--end face positioning disk, 22--bearing pedestal, 23--bolt, 24--location bearing, 25--bearing pedestal lubricating cup, 26--stepped ramp type seam, 27--bearing pedestal oil circuit, 3--power rotor, 31--air-cored axis, support plate in 32--, 33--external liner assembly, 34--ring of eddy, the cooling air inlet of 35--, 36--drainage hood, 37--direction of rotation arrow, 38--power rotor body, 4--driven rotor, 41--driven rotor body, 42--permanent magnet layer, 43--magnet is sealed, 44--transition bearing, 45--end cap oil circuit, 46--permanent-magnet block, the non-magnetic isolating pad of 47--, 5--end-cover axle, 51--driven shaft, 52--end cap, 53--attachment screw, 54--end cap lubricating cup, the driven external liner assembly of 55--, the driven axle sleeve of 56--, 6--load belt pulley, 7--load rotating shaft, 8--permanent magnet group, 81--0 ° of angle permanent magnet, 82--25 ° of angle permanent magnet.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment mono-:
As shown in Figure 1 and Figure 2, the coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing, comprises end face positioning seat 2, power rotor 3 and the driven rotor 4 of coaxial setting; Power rotor 3, as external rotor, is made up of power rotor body 38 and the ring of eddy 34 being fixed on power rotor body 38; Power rotor body 38 is made up of air-cored axis 31, external liner assembly 33 and middle support plate 32, and air-cored axis 31 is cylinder type, is arranged on power rotor body 38 centers, and middle support plate 32 is collar plate shape structure, is coaxially fixed on the middle part of air-cored axis's 31 lateral walls; External liner assembly 33 is thin-wall circular cartridge type structure, is made up of permeability magnetic material, is fixed on middle support plate 32 1 sides, and external liner assembly 33 coaxially arranges with air-cored axis 31; On the madial wall of air-cored axis 31, be provided with keyway, keyway matches with the active axle key 12 being arranged on the motor rotary shaft 11 of B35 type motor 1, between air-cored axis 31 and motor rotary shaft 11, for there to be the moving of movement clearance to coordinate, described B35 type motor 1 is arranged on air-cored axis 31 outer ends away from external liner assembly 33; End face positioning seat 2 is arranged on the lateral wall of air-cored axis 31, between middle support plate 32 and B35 type motor 1 end face, end face positioning seat 2 is made up of the collar plate shape end face positioning disk 21 and the cylinder type bearing pedestal 22 that coaxially arrange, and bearing pedestal 22 is fixed on end face positioning disk 21, between end face positioning disk 21 and middle support plate 32; On the outer face of end face positioning disk 21, be provided with stepped ramp type seam 26, for matching with the front end boss of B35 type motor 1, and end face positioning disk 21 is fixed on motor 1 stator by bolt 23; Between the air-cored axis 31 of bearing pedestal 22 and power rotor body 38, be connected by two location bearings 24, the inner ring of location bearing 24 is fixedly installed on the lateral wall of air-cored axis 31 of power rotor body 38, the outer ring of location bearing 24 is fixedly installed on the madial wall of bearing pedestal 22, and bearing pedestal 22 is coaxially connected with power rotor 3; On bearing pedestal 22, be provided with bearing pedestal lubricating cup 25, bearing pedestal lubricating cup 25 is connected with the inside of location bearing 24 by the bearing pedestal oil circuit 27 being arranged on bearing pedestal 22 sidewalls, for location bearing 24 provides lubricating oil.
Described driven rotor 4, as internal rotor, is made up of the driven rotor body 41 of end-cover axle 5, cylinder type and the permanent magnet layer 42 being arranged on driven rotor body 41; Driven rotor body 41 is thick cyclinder type structure, made by permeability magnetic material, be arranged between the air-cored axis 31 and external liner assembly 33 of power rotor body 38, be provided with magnet at the outer surface of permanent magnet layer 42 and seal 43, it is 43 permanent magnet layer 42 is completely coated that magnet is sealed, and magnet is sealed 43 and is made up without magnetic metal material of corrosion-resistant; End-cover axle 5 is arranged on the outer face of driven rotor 4, end-cover axle 5 is made up of end cap 52 and the driven shaft 51 that is fixed on end cap 52 centers, outer face, end cap 52 coaxially arranges with driven shaft 51, and end cap 52 is collar plate shape structure, is fixed on driven rotor body 41 by attachment screw 53; Driven shaft 51 coaxially arranges with the air-cored axis 31 on power rotor body 38, and described driven shaft 51 adopts solid shafting structure, for installation load belt pulley 6; Between the air-cored axis 31 of driven rotor body 41 and power rotor body 38, be connected by two transition bearings 44, the inner ring of transition bearing 44 is fixedly installed on the lateral wall of air-cored axis 31 of power rotor body 38, the outer ring of transition bearing 44 is fixedly installed on the madial wall of driven rotor body 41, and driven rotor 4 is coaxially connected with power rotor 3; On end cap 52, be provided with end cap lubricating cup 54, end cap lubricating cup 54 is connected with the inside of transition bearing 44 by the end cap oil circuit 45 being arranged on driven rotor body 41 and end cap 52, for transition bearing 44 provides lubricating oil.
Described power rotor 3 is as ring of eddy rotor, and ring of eddy 34 is coaxially fixed on the madial wall of external liner assembly 33 of power rotor body 38, and described ring of eddy 34 is annular, is made of copper; Driven rotor 4 is as permanent magnet rotor, and permanent magnet layer 42 is coaxially fixed on the lateral wall of driven rotor body 41; Permanent magnet layer 42 is corresponding with ring of eddy 34, be arranged on magnet on permanent magnet layer 42 seal 43 and ring of eddy 34 between leave gap, as movement clearance and the refrigerating gas passage that flows; On the middle support plate 32 of described power rotor body 38, be provided with several cooling air inlets 35 corresponding with described gap; On the outer wall of middle support plate 32, be provided with drainage hood 36 and direction of rotation arrow 37, drainage hood 36 is corresponding one by one with cooling air inlet 35, the windward direction of the opening of drainage hood 6 in the time that power rotor body 38 rotates, direction of rotation arrow 37 indicates the direction of rotation of power rotor body 38.
Described permanent magnet layer 42 adopts magnetism-gathering magnetic line structure to form by 12 group permanent-magnet groups 8, and 12 group permanent-magnet groups 8 are along the circumferential direction evenly distributed on the lateral wall of driven rotor body 41; The bar permanent magnet composition that every group permanent-magnet group 8 is tile fragment shape by three cross sections, middle magnet in every group permanent-magnet group 8 is 0 ° of angle permanent magnet 81, its magnetizing direction is identical with the radial direction of driven rotor body 41, and this is radially the diametric(al) through the driven rotor body 41 at 0 ° of angle permanent magnet 81 center; The magnet that is arranged on 0 ° of angle permanent magnet 81 arranged on left and right sides is 25 ° of angle permanent magnets 82, the acute angle radially forming of its magnetizing direction and driven rotor body 41 is 25 °, this is radially respectively the diametric(al) through the driven rotor body 41 at 25 ° of angle permanent magnet 82 centers, and the intersection point of the magnetizing direction of both sides magnet is arranged on the outside of permanent magnet group 8; The polar orientation that magnetizes of the magnet in same group permanent-magnet group 8 is identical, the opposite polarity directions that magnetizes of two adjacent groups permanent magnet group 8; Between the interior adjacent magnets of same group permanent-magnet group 8, equal close contact, leaves gap between two adjacent groups permanent magnet group 8, and fills the non-magnetic isolating pad 47 of being made up of non-magnet material in gap; The internal diameter of described permanent magnet layer 42 is identical, external diameter is identical, axial length is identical and end face alignment, and ring of eddy 34 both ends of the surface exceed permanent magnet layer 42 both ends of the surface, and exceed the equal in length of both ends of the surface.
Below in conjunction with accompanying drawing, a use procedure of the present invention is described:
As shown in Figure 1 and Figure 2, shaft coupling of the present invention is in the time of work, and first motor rotary shaft 11 drives power rotor 3 to rotate by active axle key 12, and now not yet motion of driven rotor 4; Because the polar orientation that magnetizes of two adjacent groups permanent magnet group 42 on driven rotor body 41 is contrary, therefore when power rotor 3 is during with for the relative rotation motion of driven rotor 4, the interior formation alternating magnetic field of ring of eddy 34 that the permanent magnet group 42 on driven rotor body 41 is understood on power rotor body 38; Because ring of eddy 34 is to be become by electric conducting material copper, the alternating magnetic field that permanent magnet group 42 produces can generate the eddy current of alternation therein, and then this eddy current produces Induced magnetic field again in ring of eddy 34; On Induced magnetic field and driven rotor body 41, the stationary magnetic field of permanent magnet group 42 interacts, and just between two rotors, produces coupling torque, thereby drives driven rotor 4 to do and identical the rotatablely moving of power rotor 3 directions; After this, in driven shaft 51 output torque one timings, between power rotor 3 and driven rotor 4, keep certain speed discrepancy, power rotor 3 is faster than driven rotor 4 rotating speeds all the time, the two remains motion for the relative rotation, thereby maintaining all the time above-mentioned coupling process, between two rotors, reaching the object of transmitting motion-promotion force.
In the course of work, load belt pulley 6 is likely subject to the effect force and moment of different directions, this effect force and moment is passed to driven rotor body 41 through driven shaft 51 and end cap 52, pass to again one end of the air-cored axis 31 of power rotor body 38 by transition bearing 44, due between air-cored axis 31 and motor rotary shaft 11 for there to be the moving of movement clearance to coordinate, so the external force that air-cored axis 31 bears mainly passes to the location bearing 24 that is arranged on air-cored axis's 31 other ends, be passed on the front end boss support of B35 type motor 1 finally by bearing pedestal 22 and end face positioning disk 21.
Embodiment bis-:
As shown in Figure 3, Figure 4, the coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing, comprises end face positioning seat 2, power rotor 3 and the driven rotor 4 of coaxial setting; Power rotor 3, as internal rotor, is made up of power rotor body 38 and the permanent magnet layer 42 being arranged on power rotor body 38; Power rotor body 38 is made up of air-cored axis 31, external liner assembly 33 and middle support plate 32, and air-cored axis 31 is cylinder type, is arranged on power rotor body 38 centers; Middle support plate 32 is collar plate shape structure, is coaxially fixed on the lateral wall middle part of air-cored axis 31; External liner assembly 33 is thin-wall circular cartridge type structure, is made up of permeability magnetic material, is fixedly installed on a side of middle support plate 32, and external liner assembly 33 coaxially arranges with air-cored axis 31; On the madial wall of air-cored axis 31, be provided with keyway, keyway matches with the active axle key 12 being arranged on the motor rotary shaft 11 of B35 type motor 1, between air-cored axis 31 and motor rotary shaft 11, for there to be the moving of movement clearance to coordinate, described motor 1 is arranged on air-cored axis 31 outer ends away from external liner assembly 33; End face positioning seat 2 is arranged in air-cored axis 31, between middle support plate 32 and B35 type motor 1 end face, end face positioning seat 2 is made up of the collar plate shape end face positioning disk 21 and the cylinder type bearing pedestal 22 that coaxially arrange, and bearing pedestal 22 is fixed on end face positioning disk 21, between end face positioning disk 21 and middle support plate 32; On the outer face of end face positioning disk 21, be provided with stepped ramp type seam 26, for matching with the front end boss of B35 type motor 1, and end face positioning disk 21 is fixed on motor 1 stator by bolt 23; Between the air-cored axis 31 of bearing pedestal 22 and power rotor body 38, be connected by two location bearings 24, the inner ring of location bearing 24 is fixedly installed on the lateral wall of air-cored axis 31 of power rotor body 38, the outer ring of location bearing 24 is fixedly installed on the madial wall of bearing pedestal 22, and bearing pedestal 22 is coaxially connected with power rotor 3; On bearing pedestal 22, be provided with bearing pedestal lubricating cup 25, bearing pedestal lubricating cup 25 is connected with the gap of location bearing 24 by the bearing pedestal oil circuit 27 being arranged on bearing pedestal 22 sidewalls, for location bearing 24 provides lubricating oil.
Described driven rotor 4 is as external rotor, is made up of driven rotor body 41, end-cover axle 5 and the ring of eddy 34 that is fixed in end-cover axle 5, and ring of eddy 34 is annular, is made of copper; Driven rotor body 41 is thick cyclinder type structure, made by permeability magnetic material, be arranged between the air-cored axis 31 and external liner assembly 33 of power rotor body 38, end-cover axle 5 is made up of the driven external liner assembly 55 coaxially arranging, end cap 52 and driven axle sleeve 56, driven external liner assembly 55 is coaxially fixed on end cap 52, is positioned at external liner assembly 33 outsides of power rotor body 38, and driven external liner assembly 55 is made up of permeability magnetic material; End cap 52 is collar plate shape structure, is fixed on the outer face of driven rotor body 41 by attachment screw 53; Driven axle sleeve 56 is fixedly installed on the center, outer face of end cap 52, coaxially arranges with the air-cored axis 31 of power rotor body 38, and driven axle sleeve 56 adopts cannulated sleeve structure, for installation load rotating shaft 7; Between the air-cored axis 31 of driven rotor body 41 and power rotor body 38, be connected by two transition bearings 44, the inner ring of transition bearing 44 is fixedly installed on the lateral wall of air-cored axis 31 of power rotor body 38, the outer ring of transition bearing 44 is fixedly installed on the madial wall of driven rotor body 41, and driven rotor 4 is coaxially connected with power rotor 3; On end cap 52, be provided with end cap lubricating cup 54, end cap lubricating cup 54 is connected with the inside of transition bearing 44 by the end cap oil circuit 45 being arranged on driven rotor body 41 and end cap 52, for transition bearing 44 provides lubricating oil.
Described power rotor 3 is as permanent magnet rotor, and permanent magnet layer 42 is coaxially fixed on the lateral wall of external liner assembly 33 of power rotor body 38; Be provided with magnet at the outer surface of permanent magnet layer 42 and seal 43, it is 43 permanent magnet layer 42 is completely coated that magnet is sealed, and magnet is sealed 43 and is made up without magnetic metal material of corrosion-resistant; Driven rotor 4 is as ring of eddy rotor, and ring of eddy 34 is coaxially fixed on the madial wall of driven external liner assembly 55; Ring of eddy 34 is corresponding with permanent magnet layer 42, be arranged on magnet on permanent magnet layer 42 seal 43 and ring of eddy 34 between leave gap, as movement clearance and the refrigerating gas passage that flows; On described end cap 52, be provided with several cooling air inlets 35 corresponding with described gap, be provided with drainage hood 36 and direction of rotation arrow 37 on end cap 52 outer walls, drainage hood 36 is corresponding one by one with cooling air inlet 35; The windward direction of the opening of drainage hood 36 in the time that end cap 52 rotates, direction of rotation arrow 37 indicates the direction of rotation of end cap 52.
Described permanent magnet layer 42 adopts discrete magnetic structure to form by 24 permanent-magnet blocks 46; 24 permanent-magnet blocks 46 are along the circumferential direction evenly distributed on the lateral wall of external liner assembly 33 of power rotor body 38; Each permanent-magnet block 46 is the bar permanent magnet that cross section is tile fragment shape, all radially identical with external liner assembly 33 of the magnetizing direction of every permanent-magnet block 46, and this is radially the diametric(al) through the external liner assembly 33 at every permanent-magnet block 46 centers; The opposite polarity directions that magnetizes of adjacent two permanent-magnet blocks 46, and leave gap between adjacent two permanent-magnet blocks 46, and fill the non-magnetic isolating pad 47 of being made by non-magnet material in gap.The internal diameter of described permanent magnet layer 42 is identical, external diameter is identical, axial length is identical and end face alignment, and ring of eddy 34 both ends of the surface exceed permanent magnet layer 42 both ends of the surface, and exceed the equal in length of both ends of the surface.
Below in conjunction with accompanying drawing, a use procedure of the present invention is described:
As shown in Figure 3, Figure 4, shaft coupling of the present invention is in the time of work, and first motor rotary shaft 11 drives power rotor 3 to rotate by active axle key 12, and now not yet motion of driven rotor 4; Because the polar orientation that magnetizes of adjacent two permanent-magnet blocks 46 on power rotor body 38 is contrary, therefore when power rotor 3 is during with for the relative rotation motion of driven rotor 4, the interior formation alternating magnetic field of ring of eddy 34 that the permanent-magnet block 46 on power rotor body 38 is understood on driven external liner assembly 55; Because ring of eddy 34 is to be become by conductor material copper, the alternating magnetic field that permanent-magnet block 46 produces can generate the eddy current of alternation therein, and then this eddy current produces Induced magnetic field again in ring of eddy 34; The stationary magnetic field of the permanent-magnet block 46 on Induced magnetic field and power rotor body 38 interacts, and just between two rotors, produces coupling torque, thereby drives driven rotor 4 to do and identical the rotatablely moving of power rotor 3 directions; After this, in driven axle sleeve 56 output torque one timings, between power rotor 3 and driven rotor 4, keep certain speed discrepancy, power rotor 3 is faster than driven rotor 4 rotating speeds all the time, the two remains motion for the relative rotation, thereby maintaining all the time above-mentioned coupling process, between two rotors, reaching the object of transmitting motion-promotion force.
In the course of work, load rotating shaft 7 is likely subject to the effect force and moment of different directions, this effect force and moment is passed to driven rotor body 41 through driven axle sleeve 56 and end cap 52, pass to again one end of the air-cored axis 31 of power rotor body 38 by transition bearing 44, due between air-cored axis 31 and motor rotary shaft 11 for there to be the moving of movement clearance to coordinate, so the external force that air-cored axis 31 bears mainly passes to the location bearing 24 that is arranged on air-cored axis's 31 other ends, be passed on the front end boss support of B35 type motor 1 finally by bearing pedestal 22 and end face positioning disk 21.
Claims (8)
1. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face, is characterized in that comprising power rotor, driven rotor and the end face positioning seat of coaxial setting; Power rotor, as external rotor, is made up of power rotor body and the ring of eddy or the permanent magnet layer that are fixedly installed on power rotor body; Power rotor body is made up of air-cored axis, external liner assembly and middle support plate, and air-cored axis is cylinder type, is arranged on power rotor body center, and middle support plate is fixedly installed on the lateral wall middle part of air-cored axis; External liner assembly is cylinder type, is fixedly installed on middle support plate, and coaxially arranges with air-cored axis; Described end face positioning seat is arranged in air-cored axis, end face positioning seat is made up of end face positioning disk and the bearing pedestal being fixed on end face positioning disk, on the outer face of end face positioning disk, be provided with stepped ramp type seam, between bearing pedestal and the air-cored axis of power rotor body, be connected by location bearing; On bearing pedestal, be provided with bearing pedestal lubricating cup, bearing pedestal lubricating cup is connected with the inside of location bearing by the bearing pedestal oil circuit being arranged on bearing pedestal sidewall; Described driven rotor, as internal rotor, is made up of the driven rotor body of end-cover axle, cylinder type and ring of eddy or the permanent magnet layer being fixedly installed on driven rotor body; Driven rotor body is arranged between the air-cored axis and external liner assembly of power rotor body, end-cover axle is arranged on the outer face of driven rotor body, end-cover axle is made up of end cap and the driven shaft or the driven axle sleeve that are fixed on end cap middle part, and the air-cored axis of driven shaft or driven axle sleeve and power rotor body coaxially arranges; End cap is fixedly connected with driven rotor body; Between the air-cored axis of driven rotor body and power rotor body, be connected by transition bearing, be provided with end cap lubricating cup on end cap, end cap lubricating cup is connected with the inside of transition bearing by the end cap oil circuit being arranged on driven rotor body and end cap; Described ring of eddy or permanent magnet layer are coaxially fixed on the madial wall of external liner assembly of power rotor body, and permanent magnet layer or ring of eddy are coaxially fixed on the lateral wall of driven rotor body.
2. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face according to claim 1, it is characterized in that described ring of eddy and permanent magnet layer divide following two kinds of modes to be fixed on external liner assembly or driven rotor body, first kind of way: described ring of eddy is fixed on the madial wall of external liner assembly, permanent magnet layer is fixed on the lateral wall of driven rotor body; The second way: described ring of eddy is fixed on the lateral wall of driven rotor body, permanent magnet layer is fixed on the madial wall of external liner assembly; In these two kinds of modes, permanent magnet layer and ring of eddy are oppositely arranged, and leave gap between the two.
3. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face according to claim 2, it is characterized in that on the middle support plate of described power rotor body, being provided with several cooling air inlets, between cooling air inlet and permanent magnet layer, ring of eddy, gap is corresponding; On the middle support plate outer wall of described power rotor body, be provided with drainage hood, drainage hood is corresponding one by one with cooling air inlet; The windward direction of the opening of drainage hood in the time that power rotor body rotates.
4. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face, is characterized in that comprising power rotor, driven rotor and the end face positioning seat of coaxial setting; Power rotor, as internal rotor, is made up of power rotor body and the ring of eddy or the permanent magnet layer that are fixedly installed on power rotor body; Power rotor body is made up of air-cored axis, external liner assembly and middle support plate, and air-cored axis is cylinder type, is arranged on power rotor body center, and middle support plate is fixedly installed on the lateral wall middle part of air-cored axis; External liner assembly is cylinder type, is fixedly installed on middle support plate, and coaxially arranges with air-cored axis; Described end face positioning seat is arranged in air-cored axis, end face positioning seat is made up of end face positioning disk and the bearing pedestal being fixed on end face positioning disk, on the outer face of end face positioning disk, be provided with stepped ramp type seam, between bearing pedestal and the air-cored axis of power rotor body, be connected by location bearing; On bearing pedestal, be provided with bearing pedestal lubricating cup, bearing pedestal lubricating cup is connected with the gap of location bearing by the bearing pedestal oil circuit being arranged on bearing pedestal sidewall; Described driven rotor is as external rotor, formed by driven rotor body, end-cover axle and the ring of eddy or the permanent magnet layer that are fixedly installed in end-cover axle, driven rotor body is cylinder type, be arranged between the air-cored axis and external liner assembly of power rotor body, end-cover axle is made up of driven external liner assembly, end cap and the driven shaft or the driven axle sleeve that are fixed on end cap, driven external liner assembly is coaxially fixed on end cap, is positioned at the external liner assembly outside of power rotor body, and the air-cored axis of driven shaft or driven axle sleeve and power rotor body coaxially arranges; End cap is fixedly connected with driven rotor body; Between the air-cored axis of driven rotor body and power rotor body, be connected by transition bearing, be provided with end cap lubricating cup on end cap, end cap lubricating cup is connected with the inside of transition bearing by the end cap oil circuit being arranged on driven rotor body and end cap; Described ring of eddy or permanent magnet layer are coaxially fixed on the lateral wall of external liner assembly of power rotor body, and described permanent magnet layer or ring of eddy are coaxially fixed on the madial wall of driven external liner assembly.
5. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face according to claim 4, it is characterized in that described ring of eddy and permanent magnet layer divide following two kinds of modes to be fixed on external liner assembly or driven external liner assembly, first kind of way: described ring of eddy is fixed on the lateral wall of external liner assembly, permanent magnet layer is fixed on the madial wall of driven external liner assembly; The second way: described ring of eddy is fixed on the madial wall of driven external liner assembly, permanent magnet layer is fixed on the lateral wall of external liner assembly; In these two kinds of modes, permanent magnet layer and ring of eddy are oppositely arranged, and leave gap between the two.
6. the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of end face according to claim 5, is characterized in that being provided with several cooling air inlets on described end cap, and between cooling air inlet and permanent magnet layer, ring of eddy, gap is corresponding; On described end cap outer wall, be provided with drainage hood, drainage hood is corresponding one by one with cooling air inlet; The windward direction of the opening of drainage hood in the time that end cap rotates.
7. according to the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of the end face described in claim 1 or 4, it is characterized in that being provided with magnet at the outer surface of described permanent magnet layer seals, magnet is sealed by corrosion-resistant and is made without magnetic metal material, and magnet is sealed and leave gap between ring of eddy.
8. according to the fixing coaxial sleeve cartridge type permanent magnet eddy current coupling of the end face described in claim 1 or 4, it is characterized in that described permanent magnet layer adopts discrete magnetic structure to form by even numbered blocks permanent-magnet block, or adopt magnetism-gathering magnetic line structure to form by even number set permanent magnet group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095375.0A CN103904860B (en) | 2014-03-14 | 2014-03-14 | The coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095375.0A CN103904860B (en) | 2014-03-14 | 2014-03-14 | The coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing |
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| Publication Number | Publication Date |
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| CN103904860A true CN103904860A (en) | 2014-07-02 |
| CN103904860B CN103904860B (en) | 2016-04-20 |
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| CN201410095375.0A Expired - Fee Related CN103904860B (en) | 2014-03-14 | 2014-03-14 | The coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing |
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Cited By (6)
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| CN105896881A (en) * | 2014-10-02 | 2016-08-24 | 李启飞 | Ball screw slewing bearing combined speed regulation cylinder type magnetic coupler |
| CN105896884A (en) * | 2014-10-02 | 2016-08-24 | 李启飞 | TM-type gear-rack slewing bearing combined speed regulation cylinder type magnetic coupler |
| CN105896890A (en) * | 2014-11-16 | 2016-08-24 | 李启飞 | Groove cam slewing bearing combined speed regulation cylinder type magnetic coupler |
| CN104362830B (en) * | 2014-12-05 | 2016-08-31 | 刁俊起 | A kind of permanent-magnet speed governor of fixing magnetic gap |
| CN107979262A (en) * | 2015-01-21 | 2018-05-01 | 北京华电润泽环保有限公司 | Permanent magnet eddy current coupling |
| CN108504828A (en) * | 2018-05-10 | 2018-09-07 | 恒进感应科技（十堰）股份有限公司 | A kind of magnetic driven transmission mechanism |
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| CN103904860B (en) | 2016-04-20 |
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