CN201027951Y

CN201027951Y - Magnetic coupling device

Info

Publication number: CN201027951Y
Application number: CNU200720143782XU
Authority: CN
Inventors: 刘新广
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-09
Filing date: 2007-04-09
Publication date: 2008-02-27
Anticipated expiration: 2017-04-09

Abstract

The utility model relates to a magnetic force torque converter, wherein, two coaxial permanent magnetism circle tubes are arranged along a driven member in radial direction. A permanent magnetism circle plate is arranged on the end face of the driven member. The permanent magnetism circle tube and the permanent magnetism circle plate are fixed on a guide magnet. A driving member is provided with the permanent magnetism circle tube. The outer circle of the permanent magnetism circle tube is smaller than the inner circle of the outer permanent magnetism circle tube of the driven member. The inner circle of the permanent magnetism circle tub is bigger than the outer circle of the inner permanent magnetism circle tub of the driven member. The permanent magnetism circle plate is arranged on the end face of the driving member. The permanent magnetism circle tube and the permanent magnetism circle plate are fixed on the guide magnet. The permanent magnetism circle tubes are assembled by a plurality of permanent magnetism strips of polar alternative magnetism charging along axial direction. The permanent magnetism circle plates are assembled by a plurality of permanent magnetism strips of polar alternative magnetism charging along radial direction. The permanent magnetism circle tube of the driving member is inserted between two permanent magnetism circle tubes of a driven member. The circumference faces and the end faces of the driving member and the driven member are not contacted. The magnet of the driving member is opposite to the different pole of the magnet of the driven member. The circumferences and the end faces of the driving member and the driven member are coupled; therefore, the utility model has bigger transmission power.

Description

Magnetic coupling

Technical field

The utility model relates to a kind of magnetic drive, belongs to drive technology.

Background technique

Excellent characteristics such as the magnetic transmission has non-contact, no friction, friction, noise free, exempts to lubricate, non-maintaining, environmental protection and overload protection, thereby have a extensive future, the degree that is subject to people's attention increases day by day.Existing many magnetic drive technologies and magnetic drive are born, the practical and popularization that has.Magnetic coupling also is a magnetic coupling, is a kind of magnetic drive.Show as Fig. 1 Fig. 2, it is existing a kind of typical magnetic coupling, fixed permanent magnetism circle 2 and 3 respectively on the interior circle of the cylindrical of magnetic conduction cylinder 1 and magnetic conduction cylinder 4, permanent magnetism circle 2 and 3 permanent magnetic strips that magnetize by alternating polarity radially are combined into, and permanent magnetism circle 2 is relative with 3 magnetic stripe septal space different pole, magnetic conduction cylinder 1 and permanent magnetism circle 2 are formed driven member (or driving link), and magnetic conduction cylinder 4 and permanent magnetism circle 3 are formed driving link (or driven member).In a single day relative angular displacement takes place in principal and subordinate's part, each magnetic stripe of permanent magnetism circle 2 both attracted original and it over against permanent magnetism circle 3 on magnetic stripe, and simultaneously to permanent magnetism circle 3 on the adjacent opposite polarity magnetic stripe of this magnetic stripe produce repulsion, attraction force is identical along the branch force direction of tangent to periphery with repulsive force, the size approximately equal, that is to say that 2 pairs of permanent magnetism circles of permanent magnetism circle 3 produce torque, force driven member to follow driving link and rotate, thereby realize the torque coupling.Existing magnetic coupling is only realized the torque coupling by the magnet that circumferentially is provided with at principal and subordinate's part, the utilization ratio of the magnetic force of magnet is not high, and do not have to utilize or do not make full use of the end face of principal and subordinate's part, thereby existing magnetic coupling torque per unit volume coupling value is not high enough.

Summary of the invention

The utility model designs a kind of novel magnetic coupler, makes full use of relative side face of principal and subordinate's part and end face configuration permanent magnet, increases coupling power, improves magnetic coupling torque per unit volume coupling value, to satisfy the needs of more high-power contactless transmission.

The utility model is realized by following technological scheme.

The utility model is made up of principal and subordinate's part.Driven member radially at interval is provided with two concentric permanent-magnetic cylindricals, and two permanent-magnetic cylindrical different polies are relative, at the end face of driven member the permanent magnetism disk is set, and permanent-magnetic cylindrical and permanent magnetism disk are cemented on the magnet case.Driving link is provided with a permanent-magnetic cylindrical, the cylindrical of this permanent-magnetic cylindrical is littler than the interior circle of the outer permanent-magnetic cylindrical of driven member, and the interior circle of this permanent-magnetic cylindrical is bigger than the cylindrical of the interior permanent-magnetic cylindrical of driven member, at the end face of driving link the permanent magnetism disk is set, and permanent-magnetic cylindrical and permanent magnetism disk are cemented on the magnet case.Permanent-magnetic cylindrical is combined into by some permanent magnetic strips that alternating polarity radially magnetizes, and perhaps permanent-magnetic cylindrical magnetizes along circumferentially subregion and radially multipole alternating polarity by a whole magnet ring and forms; The permanent magnetism disk is combined into by some permanent magnetic strips that alternating polarity vertically magnetizes, the permanent magnetism disk also can be magnetized by a circumferential subregion in whole permanent magnetism disk edge and multipole vertically alternating polarity and form, the permanent-magnetic cylindrical of driving link is inserted between two permanent-magnetic cylindricals of driven member, make principal and subordinate's part coaxial, and the circumferential surface of principal and subordinate's part is not contacted with end face, the magnet of driving link is relative with the magnet heteropole of driven member.The role of described principal and subordinate's part can exchange mutually.

In a single day relative angular displacement takes place in principal and subordinate's part, each magnetic patch of driving link both attracted original and it over against the magnetic patch of driven member, and simultaneously to driven member on the adjacent opposite polarity magnetic patch of this magnetic patch produce repulsion, attraction force divides force direction identical with repulsive force along tangent line, the size approximately equal, that is to say that driving link produces torque to driven member, force driven member to follow driving link and rotate, thereby realize the torque coupling.

Except advantage with existing magnetic coupling, to compare with existing magnetic coupling, the utility model also has following advantage:

1, owing to the circumferential and end face optimization at principal and subordinate's part is provided with the coupling magnet, particularly the permanent-magnetic cylindrical of driving link is radially by two permanent-magnetic cylindrical clampings of driven member, the utilization ratio height of the magnetic force of magnet, so the coupling power of principal and subordinate's part is very big, improve magnetic coupling torque per unit volume coupling value, can transmit bigger power.

2, size is big vertically for existing magnetic coupling, be difficult to use as Hooks coupling universal coupling, and the utility model is satisfying under the requirement of torque coupling value, can just can be used as Hooks coupling universal coupling and use by axial dimension, radial dimension and the coupling gap of optimal design magnetic coupling.

Description of drawings

Fig. 1 is existing magnetic coupling (or magnetic coupling) structural representation;

Fig. 2 is the H-H sectional drawing of Fig. 1;

Fig. 3 is embodiment one a structural representation;

Fig. 4 is the A-A sectional view of Fig. 3

Fig. 5 is the B-B sectional drawing of Fig. 3;

Fig. 6 is the C-C sectional view of Fig. 3;

Fig. 7 is the D-D sectional view of Fig. 3.

Embodiment

Further specify below in conjunction with embodiment.

Embodiment one: show that as Fig. 3 to Fig. 7 the utility model is made up of principal and subordinate's part.Magnet case 5 connects with rotating shaft 8, on magnet case 5, overlap non-magnetic ring circle 10 admittedly, solid cylindrical sleeve permanent magnetism disk 6 at non magnetic annulus 10, permanent magnetism disk 6 is consolidated on the chassis of magnet case 5, at the non magnetic annulus 12 of the cylindrical socket of permanent magnetism disk 6, right side at non magnetic annulus 12 connects magnetic conduction cylinder 14, at the fixed permanent-magnetic cylindrical 13 of the interior circle of magnetic conduction cylinder 14, at the fixed permanent-magnetic cylindrical 7 of the middle part of magnet case 5 cylindrical, and the interior circle of the cylindrical that makes permanent-magnetic cylindrical 7 and permanent-magnetic cylindrical 13 is in that radially different pole is relative, the fixed permanent magnetism disk 15 in the right side of permanent-magnetic cylindrical 13, at the fixed permanent magnetism disk 17 in the right side of magnet case right side, 5 middle part and permanent-magnetic cylindrical 7, use non magnetic sheath body 22 big envelopes at last, above-mentioned each part is formed driven member 9; Magnetic conduction disk 16 connects with rotating shaft 19, the non magnetic annulus 23 of socket outside permanent magnetism disk 20, socket permanent magnetism disk 24 outside non magnetic annulus 23, permanent magnetism disk 20, permanent magnetism disk 24, permanent magnetism disk 25 are identical with permanent magnetism disk 17, permanent magnetism disk 15, permanent magnetism disk 6 respectively, permanent magnetism disk 20, non magnetic annulus 23 and permanent magnetism disk 24 are all fixed with magnetic conduction disk 16, permanent-magnetic cylindrical 11 is cemented on the left side of non magnetic annulus 23, the fixed permanent magnetism disk 25 in the left side of permanent-magnetic cylindrical 11, use non magnetic sheath body 21 big envelopes at last, above-mentioned each part is formed driving link 18; Permanent magnetism disk 6,15,17,20,24 is combined into by some permanent magnets that alternating polarity vertically magnetizes, and perhaps magnetizing along circumferentially subregion and multipole vertically alternating polarity by a whole permanent magnetism disk forms; Permanent-magnetic cylindrical 13,7,11 is combined into by some permanent magnetic strips that alternating polarity radially magnetizes, and perhaps magnetizing along circumferentially subregion and radially multipole alternating polarity by a whole magnet ring forms; Permanent-magnetic cylindrical 11 is inserted between permanent-magnetic cylindrical 7 and the permanent-magnetic cylindrical 13, but isolates a gap, the inside and outside circle that the makes permanent-magnetic cylindrical 11 interior round different pole with the cylindrical of magnetic cylinder 7 and permanent-magnetic cylindrical 13 respectively is relative; To isolate a gap heteropole vertically relative with permanent magnetism disk 15,6,17 respectively to make permanent magnetism disk 24,25,20, requires all coaxial installation of all parts in principal and subordinate's part.

Described permanent-magnetic cylindrical and permanent magnetism disk if make of whole permanent magnet, and are connect reliably with associated part, can remove non magnetic sheath body 21,22.

The role of driving link 18 and driven member 9 can exchange mutually.

Embodiment two: the utility model is used for the transmission of full-sealing device, seal with stuffing box gland after driven member 9 of the present utility model being installed in the rotating shaft end of stand-by device (as pump, valve etc.), require stuffing box gland and driven member 9 corresponding parts to make of nonmetallic material or carbon fibre material, stuffing box gland does not contact driven member 9; With driving link 18 across stuffing box gland coaxially sleeve in the outside of driven member 9, and not contact seal cover.

Claims

1. a magnetic coupling is characterized in that: be made up of principal and subordinate's part; Driven member radially at interval is provided with two concentric permanent-magnetic cylindricals, and two permanent-magnetic cylindrical different polies are relative, at the end face of driven member the permanent magnetism disk is set, and permanent-magnetic cylindrical and permanent magnetism disk are cemented on the magnet case; Driving link is provided with a permanent-magnetic cylindrical, the cylindrical of this permanent-magnetic cylindrical is littler than the interior circle of the outer permanent-magnetic cylindrical of driven member, and the interior circle of this permanent-magnetic cylindrical is bigger than the cylindrical of the interior permanent-magnetic cylindrical of driven member, at the end face of driving link the permanent magnetism disk is set, and permanent-magnetic cylindrical and permanent magnetism disk are cemented on the magnet case; Permanent-magnetic cylindrical is combined into by some permanent magnetic strips that alternating polarity radially magnetizes, and perhaps permanent-magnetic cylindrical magnetizes along circumferentially subregion and radially multipole alternating polarity by a whole magnet ring and forms; The permanent magnetism disk is combined into by some permanent magnetic strips that alternating polarity vertically magnetizes, the permanent magnetism disk also can be magnetized by a circumferential subregion in whole permanent magnetism disk edge and multipole vertically alternating polarity and form, the permanent-magnetic cylindrical of driving link is inserted between two permanent-magnetic cylindricals of driven member, make principal and subordinate's part coaxial, and the circumferential surface of principal and subordinate's part is not contacted with end face, the magnet of driving link is relative with the magnet heteropole of driven member; The role of described principal and subordinate's part can exchange mutually.

2. magnetic coupling according to claim 1, it is characterized in that: magnet case (5) connects with rotating shaft (8), on magnet case (5), overlap non-magnetic ring circle (10) admittedly, solid cylindrical sleeve permanent magnetism disk (6) at non magnetic annulus (10), permanent magnetism disk (6) is consolidated on the chassis of magnet case (5), the non magnetic annulus of cylindrical socket (12) at permanent magnetism disk (6), right side at non magnetic annulus (12) connects magnetic conduction cylinder (14), the fixed permanent-magnetic cylindrical of interior circle (13) at magnetic conduction cylinder (14), the fixed permanent-magnetic cylindrical of middle part cylindrical (7) at magnet case (5), and the interior circle of the cylindrical that makes permanent-magnetic cylindrical (7) and permanent-magnetic cylindrical (13) is in that radially different pole is relative, the fixed permanent magnetism disk in the right side of permanent-magnetic cylindrical (13) (15), the fixed permanent magnetism disk in right side (17) at magnet case (5) right side, middle part and permanent-magnetic cylindrical (7), use non magnetic sheath body (22) big envelope at last, above-mentioned each part is formed driven member (9); Magnetic conduction disk (16) connects with rotating shaft (19), the non magnetic annulus of socket (23) outside permanent magnetism disk (20), socket permanent magnetism disk (24) outside non magnetic annulus (23), permanent magnetism disk (20), permanent magnetism disk (24), permanent magnetism disk (25) respectively with permanent magnetism disk (17), permanent magnetism disk (15), permanent magnetism disk (6) is identical, permanent magnetism disk (20), non magnetic annulus (23) and permanent magnetism disk (24) are all fixed with magnetic conduction disk (16), permanent-magnetic cylindrical (11) is cemented on the left side of non magnetic annulus (23), at the fixed permanent magnetism disk in the left side of permanent-magnetic cylindrical (11) (25), use non magnetic sheath body (21) big envelope at last, above-mentioned each part is formed driving link (18); Permanent magnetism disk (6), (15), (17), (20), (24) are combined into by some permanent magnets that alternating polarity vertically magnetizes, and perhaps magnetizing along circumferentially subregion and multipole vertically alternating polarity by a whole permanent magnetism disk forms; Permanent-magnetic cylindrical (13), (7), (11) are combined into by some permanent magnetic strips that alternating polarity radially magnetizes, and perhaps magnetizing along circumferentially subregion and radially multipole alternating polarity by a whole magnet ring forms; Permanent-magnetic cylindrical (11) is inserted between permanent-magnetic cylindrical (7) and the permanent-magnetic cylindrical (13), but isolates a gap, the inside and outside circle that makes permanent-magnetic cylindrical (11) the interior round different pole with the cylindrical of magnetic cylinder (7) and permanent-magnetic cylindrical (13) respectively is relative; To isolate a gap heteropole vertically relative with permanent magnetism disk (15), (6), (17) respectively to make permanent magnetism disk (24), (25), (20), requires all coaxial installation of all parts in principal and subordinate's part;

Described permanent-magnetic cylindrical and permanent magnetism disk if make of whole permanent magnet, and are connect reliably with associated part, can remove non magnetic sheath body (21), (22);

The role of driving link (18) and driven member (9) can exchange mutually.

3. magnetic coupling according to claim 1 and 2, it is characterized in that: can be used for the transmission of full-sealing device, driven member (9) is installed in rotating shaft end as the device of pump, valve, seal with stuffing box gland then, require stuffing box gland and the corresponding part of driven member (9) to make of nonmetallic material or carbon fibre material, stuffing box gland does not contact driven member (9); With driving link (18) across stuffing box gland coaxially sleeve in the outside of driven member (9), and not contact seal cover.