Content of the invention
In order to improve gear ratio and the structural hazard of gear reduction unit, and the defect of vibration, overload and sealing lubrication, this
Invention devises a kind of decelerator with the few range magnetic gear of 2k-h type.This decelerator passes through on the circumference of duplex sleeve
The double-deck magnetic pole of design, realizes the mechanical gear-driven double reduction of contact and driving torque is all larger with gear ratio, is a kind of
Based on planet-gear transmission principle, design the few extreme difference 2k-h type gear transmission reducing device of magnetic field coupling-type.Using magnetic
Body heteropole is attracting, and homopolar-repulsion realizes the big retarding of few range magnetic gear of mechanical contact and friction than transmission.The present invention
The decelerator of design as a whole, slows down big, driving torque is big, low cost.
The present invention is a kind of decelerator with the few range magnetic gear of 2k-h type, and described decelerator includes input shaft
(1), output shaft (2), housing (3), end cap (4,5), ring for fixing (6), duplex sleeve (7), axle sleeve (8a, 8b), magnetic pole component
(9), deep groove ball bearing (10a~10f), threaded rod (11a~11d) and pin (12a, 12b);
Input shaft (1) is provided with junction (1a), aa bearing section (1b), ab bearing section (1c) and ac bearing section (1d);
A axle sleeve (8a) is first socketed on aa bearing section (1b), then set connects a deep groove ball bearing (10a);
One end of ab bearing section (1c) is socketed with b deep groove ball bearing (10b), and the other end of ab bearing section (1c) is socketed with c
Deep groove ball bearing (10c);
B axle sleeve (8b) is first socketed on ac bearing section (1d), then set connects d deep groove ball bearing (10d);
One end of output shaft (2) is output shaft shaft part (2a), and the other end of output shaft (2) is output shaft reel (2b);
Output shaft shaft part (2a) is provided with keyway (2a3), ba bearing section (2a1), bb bearing section (2a2) and shaft shoulder section
(2a4), between ba bearing section (2a1) and bb bearing section (2a2) it is shaft shoulder section (2a4);It is socketed with described bb bearing section (2a2)
F deep groove ball bearing (10f), described ba bearing section (2a1) is socketed with e deep groove ball bearing (10e);
One end of output shaft reel (2b) is provided with evagination disk (2b4), a through hole (2b3), and a through hole (2b3) is used for screw
(2c) in the tapped blind hole (6a) being connected to ring for fixing (6) through rear thread;The other end of output shaft reel (2b) is provided with a countersunk head
Chamber (2b1), b countersunk head chamber (2b2), described a countersunk head chamber (2b1) is used for installing one end of ring for fixing (6), i.e. the end of ring for fixing (6)
Face is provided with one end of tapped blind hole, passes through after a through hole (2b3) on output shaft reel (2b) by screw (2c), threaded
In the tapped blind hole (6a) of ring for fixing (6), to realize the fixing peace of the other end of output shaft (2) and one end of ring for fixing (6)
Dress;Described b countersunk head chamber (2b2) is used for installing d deep groove ball bearing (10d);
The body of housing (3) is provided with ca through hole (3a), cb through hole (3b), cc through hole (3c), cd through hole (3d), ce through hole
(3e), cf through hole (3f), ca through hole (3a) passes through for a threaded rod (11a), and cb through hole (3b) is worn for b threaded rod (11b)
Cross, cc through hole (3c) passes through for c threaded rod (11c), cd through hole (3d) passes through for d threaded rod (11d), ce through hole (3e) is used
Pass through in a pin (12a), cf through hole (3f) passes through for b pin (12b);The center of housing (3) is provided with central through hole (3g);
The body of a end cap (4) be provided with da through hole (4a), db through hole (4b), dc through hole (4c), dd through hole (4d), de lead to
Hole (4e), df through hole (4f), da through hole (4a) passes through for a threaded rod (11a), and db through hole (4b) is worn for b threaded rod (11b)
Cross, dc through hole (4c) passes through for c threaded rod (11c), dd through hole (4d) passes through for d threaded rod (11d), de through hole (4e) is used
Pass through in a pin (12a), df through hole (4f) passes through for b pin (12b);The middle part of a end cap (4) is provided with da central through hole
(4g) with db central through hole (4h);Described db central through hole (4h) is used for installing a deep groove ball bearing (10a);Described da center leads to
Hole (4g) be evenly distributed in multiple da grooves (4g1), between adjacent da groove (4g1) be da projection (4g2);The plurality of da
It is bonded with one-level outer layer magnetic piece group (9a) according to circumference uniform distribution in groove (4g1);Described one-level outer layer magnetic piece group (9a) is by many
Individual magnetic piece is uniformly constituted according to circumferencial direction;
The body of b end cap (5) be provided with ea through hole (5a), eb through hole (5b), ec through hole (5c), ed through hole (5d), ee lead to
Hole (5e), ef through hole (5f), ea through hole (5a) passes through for a threaded rod (11a), and eb through hole (5b) is worn for b threaded rod (11b)
Cross, ec through hole (5c) passes through for c threaded rod (11c), ed through hole (5d) passes through for d threaded rod (11d), ee through hole (5e) is used
Pass through in a pin (12a), ef through hole (5f) passes through for b pin (12b);The middle part of b end cap (5) is provided with ea central through hole
(5g), it is provided with ea countersunk head through hole (5g1) and eb countersunk head through hole (5g2) in described ea central through hole (5g);Ea countersunk head through hole (5g1)
For installing e deep groove ball bearing (10e), eb countersunk head through hole (5g2) is used for installing f deep groove ball bearing (10f);
The end panels of ring for fixing (6) are provided with four tapped blind holes (6a), and this tapped blind hole (6a) is used for mounting screw
(2c) fixation of ring for fixing (6) and output shaft (2), is realized by screw;The inner ring surface of ring for fixing (6) is provided with equal according to circumference
Multiple grooves (6b) of cloth, are raised (6c) between adjacent described groove (6b);Be bonded with the plurality of groove (6b) according to
Two grades of outer layers magnetic piece group (9b) of circumference uniform distribution;Described two grades of outer layers magnetic piece group (9b) are uniform according to circumferencial direction by multiple magnetic piece
Constitute;
Duplex sleeve (7) is provided with a section sleeve (7a) and b section sleeve (7b);A's section sleeve (7a) of duplex sleeve (7)
End be provided with for b deep groove ball bearing (10b) is installed a in ring cavity (7c), the end of b section sleeve (7b) of duplex sleeve (7)
Be provided with for c deep groove ball bearing (10c) is installed b in ring cavity (7d);In the case that input shaft (1) rotates, by b deep-groove ball
Bearing (10b), c deep groove ball bearing (10c) achieve the servo-actuated of duplex sleeve (7);
The outer cylinder body of a section sleeve (7a) of duplex sleeve (7) is provided with the outer faceted pebble plate of multiple a according to circumference uniform distribution
(7a1), the outer faceted pebble plate (7a1) of the plurality of a is bonded with one-level internal layer magnetic piece group (9c);Described one-level internal layer magnetic piece group (9c)
Uniformly it is made up of according to circumferencial direction multiple magnetic piece;
The outer cylinder body of b section sleeve (7b) of duplex sleeve (7) is provided with the outer faceted pebble plate of multiple b according to circumference uniform distribution
(7b1), the outer faceted pebble plate (7b1) of the plurality of b is bonded with two grades of internal layers magnetic piece group (9d);Described two grades of internal layers magnetic piece group (9d)
Uniformly it is made up of according to circumferencial direction multiple magnetic piece;
Magnetic pole component (9) includes one-level outer layer magnetic piece group (9a), two grades of outer layers magnetic piece group (9b), one-level internal layer magnetic piece groups
(9c) He two grades of internal layers magnetic piece group (9d);One-level internal layer magnetic piece group (9c) constitutes one-level magnetic group with one-level outer layer magnetic piece group (9a),
Two grades of internal layers magnetic piece group (9d) constitute two grades of magnetic groups with two grades of outer layers magnetic piece group (9b);
Wherein, in one-level outer layer magnetic piece group (9a), two grades of outer layers magnetic piece group (9b), one-level internal layer magnetic piece group (9c) and two grades
In layer magnetic piece group (9d), the magnetizing direction of each magnetic piece is the radial direction of duplex sleeve 7;One-level outer layer magnetic piece group (9a) and one
Magnetic piece magnetic pole difference between level internal layer magnetic piece group (9c) is 2;Two grades of outer layers magnetic piece group (9b) and two grades of internal layers magnetic piece group (9d) it
Between magnetic piece magnetic pole difference be 2;There is not the constraint of magnetic piece block number between two-stage.
The present invention has the advantages that the decelerator of the few range magnetic gear of 2k-h type is:
1. adopt the magnetic gear kind of drive, mechanical contacts, and overcomes the intrinsic machinery of the mechanical gear kind of drive
Fatigue, frictional dissipation, and the shortcomings of vibration noise;Decelerator need not lubricate in running, cleaning, and no grease, during overload
Drive connection can be separated in time, there is self-protection function.
2. adopt double reduction (one-level internal layer magnetic piece group (9c) and one-level outer layer magnetic piece group (9a) constitute one-level magnetic group, two
Level internal layer magnetic piece group (9d) constitutes two grades of magnetic groups with two grades of outer layers magnetic piece group (9b)), there is larger driving torque, its gear ratio
Also larger, larger output torque can be exported simultaneously and carry out driving load.
3. decelerator of the present invention simplifies the gearbox structure of complexity so that the reliability of deceleration transmission, stability and can
Control property greatly improves, and can also reach the effect of energy-conservation and environmental protection simultaneously.
4. reducer structure of the present invention is compact simple, and requirement on machining accuracy is low, can effectively reduce cost.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, a kind of of present invention design has 2k-h type few range magnetic gear
Decelerator, its include input shaft 1, output shaft 2, housing 3, end cap (4,5), ring for fixing 6, duplex sleeve 7, axle sleeve (8a, 8b),
Magnetic pole component 9, deep groove ball bearing (10a~10f), threaded rod (11a~11d) and pin (12a, 12b).In the present invention, defeated
Enter axle 1, output shaft 2, ring for fixing 6, duplex sleeve 7, axle sleeve (8a, 8b), magnetic pole component 9 and deep groove ball bearing (10a~10f) group
Become retarded motion unit.Input shaft 1, output shaft 2, housing 3 and b end cap 5 adopt metal material processing, such as aluminium alloy, rustless steel.
A end cap 4, ring for fixing 6 and duplex sleeve 7 adopt permeability magnetic material to process, such as cast iron, mild steel.
In the present invention, duplex sleeve 7 is connected with input shaft 1 by deep groove ball bearing, and b end cap 5 passes through deep groove ball bearing
It is connected with output shaft 2, ring for fixing 6 is fixed on output shaft reel end, housing 3 passes through threaded rod (11a~11d) with end cap 4,5
Fixing with pin (12a, 12b).It is bonded with one-level internal layer magnetic piece group 9c, the b of duplex sleeve 7 on a section sleeve 7a of duplex sleeve 7
It is bonded with two grades of internal layer magnetic piece groups 9d on section sleeve 7b.Two grades of outer layer magnetic piece groups 9b are bonded with the inwall of ring for fixing 6.A end cap 4
Central through hole in one-level outer layer magnetic piece group 9a is installed.This decelerator passes through to design double-layer magnetic on the circumference of duplex sleeve 7
Pole, realizes the mechanical gear-driven double reduction of contact and driving torque is all larger with gear ratio.
Input shaft 1
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 2, Fig. 2 a, input shaft 1 is formed in one part.Input shaft 1 is provided with
Junction 1a, aa bearing section 1b, ab bearing section 1c and ac bearing section 1d.Junction 1a is used for being connected with outside driving equipment,
For realizing power introduces the decelerator of present invention design.
A axle sleeve 8a is first socketed on aa bearing section 1b, then set connects a deep groove ball bearing 10a.
One end of ab bearing section 1c is socketed with b deep groove ball bearing 10b, and the other end of ab bearing section 1c is socketed with c deep-groove ball
Bearing 10c.
B axle sleeve 8b is first socketed on ac bearing section 1d, then set connects d deep groove ball bearing 10d.
In the present invention, it is a axle sleeve 8a between a deep groove ball bearing 10a and b deep groove ball bearing 10b, described a axle sleeve 8a energy
Enough stop the movement interference between a deep groove ball bearing 10a and b deep groove ball bearing 10b.C deep groove ball bearing 10c and d deep-groove ball axle
Holding between 10d is b axle sleeve 8b, and described b axle sleeve 8b can stop the fortune between c deep groove ball bearing 10c and d deep groove ball bearing 10d
Dynamic interference.
Output shaft 2
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 5, Fig. 5 a, Fig. 5 b, one end of output shaft 2 is output shaft shaft part 2a,
The other end of output shaft 2 is output shaft reel 2b.Output shaft shaft part 2a is provided with keyway 2a3, ba bearing section 2a1, bb bearing section
2a2 and shaft shoulder section 2a4, are shaft shoulder sections 2a4 between ba bearing section 2a1 and bb bearing section 2a2, described shaft shoulder section 2a4 can stop f
Movement interference between deep groove ball bearing 10f and e deep groove ball bearing 10e.By placing key in keyway 2a3, realize this
The decelerator of bright design is fixedly connected with external equipment.F deep groove ball bearing 10f is socketed with described bb bearing section 2a2, described
E deep groove ball bearing 10e is socketed with ba bearing section 2a1.
One end of output shaft reel 2b is provided with evagination disk 2b4, a through hole 2b3, and a through hole 2b3 is used for screw 2c and passes through rear spiral shell
Stricture of vagina is connected in the tapped blind hole 6a of ring for fixing 6;The other end of output shaft reel 2b is provided with a countersunk head chamber 2b1, b countersunk head chamber 2b2,
Described a countersunk head chamber 2b1 is used for installing one end of ring for fixing 6, and that is, the end face of ring for fixing 6 is provided with one end of tapped blind hole, by spiral shell
After nail 2c passes through a through hole 2b3 on output shaft reel 2b, it is threaded in the tapped blind hole 6a of ring for fixing 6, to realize exporting
The fixed installation of one end of the other end of axle 2 and ring for fixing 6.Described b countersunk head chamber 2b2 is used for installing d deep groove ball bearing 10d.
In the present invention, as shown in Figure 1 b, b end cap 5 and housing 3 be in assembling, in the structure that there is evagination disk 2b4
When, can retardation motion interfere.
In the present invention, output shaft 2 designs evagination disk 2b4, installed with ring for fixing 6 with evagination disk 2b4, reduce
The diameter of output shaft 1 shaft part, is conducive to low cost processing.
Housing 3
Referring to shown in Fig. 1 c, the center of housing 3 is provided with the central through hole 3g for placing retarded motion unit;Housing 3
Body is provided with ca through hole 3a, cb through hole 3b, cc through hole 3c, cd through hole 3d, ce through hole 3e, cf through hole 3f, and ca through hole 3a is used for a
Threaded rod 11a passes through, and cb through hole 3b passes through for b threaded rod 11b, and cc through hole 3c passes through for c threaded rod 11c, cd through hole 3d
Pass through for d threaded rod 11d, ce through hole 3e passes through for a pin 12a, cf through hole 3f passes through for b pin 12b.
A end cap 4
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 6, the body of a end cap 4 is provided with da through hole 4a, db through hole 4b, dc
Through hole 4c, dd through hole 4d, de through hole 4e, df through hole 4f, da through hole 4a pass through for a threaded rod 11a, and db through hole 4b is used for b spiral shell
Rasp bar 11b passes through, and dc through hole 4c passes through for c threaded rod 11c, and dd through hole 4d passes through for d threaded rod 11d, and de through hole 4e uses
Pass through in a pin 12a, df through hole 4f passes through for b pin 12b.
The middle part of a end cap 4 is provided with da central through hole 4g and db central through hole 4h.Described db central through hole 4h is used for installing a
Deep groove ball bearing 10a.Described da central through hole 4g is evenly distributed in multiple da groove 4g1, is da between adjacent da groove 4g1
Raised 4g2.It is bonded with one-level outer layer magnetic piece group 9a according to circumference uniform distribution in the plurality of da groove 4g1.Described one-level outer layer
Magnetic piece group 9a is uniformly made up of according to circumferencial direction multiple magnetic piece.
In the present invention, the da central through hole 4g circumference of a end cap 4 designs da groove 4g1, and pacify in da groove 4g1
Dress magnetic piece, and a end cap 4 is static with respect to duplex sleeve 7, the structure of this magnetic piece, a end cap 4 and duplex sleeve 7 is realized less
Extreme difference gear drive.In the case that advantage is to realize same gear ratios, compact conformation, light weight.
B end cap 5
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 7, the body of b end cap 5 is provided with ea through hole 5a, eb through hole 5b, ec
Through hole 5c, ed through hole 5d, ee through hole 5e, ef through hole 5f, ea through hole 5a pass through for a threaded rod 11a, and eb through hole 5b is used for b spiral shell
Rasp bar 11b passes through, and ec through hole 5c passes through for c threaded rod 11c, and ed through hole 5d passes through for d threaded rod 11d, and ee through hole 5e uses
Pass through in a pin 12a, ef through hole 5f passes through for b pin 12b.
The middle part of b end cap 5 is provided with ea central through hole 5g, is provided with ea countersunk head through hole 5g1 and eb in described ea central through hole 5g
Countersunk head through hole 5g2.Ea countersunk head through hole 5g1 is used for installing e deep groove ball bearing 10e, and eb countersunk head through hole 5g2 is used for installing f deep-groove ball
Bearing 10f.
Ring for fixing 6
Referring to shown in Fig. 1 b, Fig. 1 c, Fig. 4, Fig. 4 a, the end panels of ring for fixing 6 are provided with four tapped blind hole 6a, this spiral shell
Stricture of vagina blind hole 6a is used for mounting screw 2c, realizes the fixation of ring for fixing 6 and output shaft 2 by screw.Set on the inner ring surface of ring for fixing 6
There are the multiple groove 6b according to circumference uniform distribution, be raised 6c between adjacent described groove 6b.It is bonded with the plurality of groove 6b
Two grades of outer layer magnetic piece groups 9b according to circumference uniform distribution.Described two grades of outer layer magnetic piece groups 9b are uniform according to circumferencial direction by multiple magnetic piece
Constitute.
In the present invention, ring for fixing 6 and output shaft 2 fixedly mount, and on ring for fixing 6 install magnetic piece, ring for fixing 6 with respect to
Duplex sleeve 7 is motion, and separate design can reduce processing materials.Output shaft and ring for fixing can adopt different materials simultaneously,
Be conducive to improving decelerator performance reduces cost.
Duplex sleeve 7
Referring to shown in Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 1 c, Fig. 2 b, Fig. 2 c, Fig. 3, the size two that duplex sleeve 7 is formed in one
Section tube-in-tube structure, i.e. a section sleeve 7a and b section sleeve 7b.The end of a section sleeve 7a of duplex sleeve 7 is provided with for installing b zanjon
Ring cavity 7c in a of ball bearing 10b, the end of the b section sleeve 7b of duplex sleeve 7 is provided with the b for installing c deep groove ball bearing 10c
Interior ring cavity 7d.Therefore, in the case of input shaft 1 rotation, achieved double by b deep groove ball bearing 10b, c deep groove ball bearing 10c
Union cylinder 7 is around the pursuit movement of input shaft 1.
The outer cylinder body of a section sleeve 7a of duplex sleeve 7 is provided with the outer faceted pebble plate 7a1 of multiple a according to circumference uniform distribution, described
It is bonded with one-level internal layer magnetic piece group 9c on the outer faceted pebble plate 7a1 of multiple a.Described one-level internal layer magnetic piece group 9c is by multiple magnetic piece according to circle
Circumferential direction is uniformly constituted.
The outer cylinder body of the b section sleeve 7b of duplex sleeve 7 is provided with the outer faceted pebble plate 7b1 of multiple b according to circumference uniform distribution, described
It is bonded with two grades of internal layer magnetic piece groups 9d on the outer faceted pebble plate 7b1 of multiple b.Described two grades of internal layer magnetic piece groups 9d are by multiple magnetic piece according to circle
Circumferential direction is uniformly constituted.
In the present invention, duplex sleeve 7 is designed to size segment structure, and is respectively mounted magnetic piece on two sections of cylinders, isolation
The influencing each other of double reduction magnetic field, and fixation magnetic piece by the way of relatively adopting adhesion to install.
Magnetic pole component 9
Referring to shown in Fig. 1 c, Fig. 8, Fig. 8 a, magnetic pole component 9 includes one-level outer layer magnetic piece group 9a, two grades of outer layer magnetic piece groups
9b, one-level internal layer magnetic piece group 9c and two grades of internal layer magnetic piece groups 9d.One-level internal layer magnetic piece group 9c is constituted with one-level outer layer magnetic piece group 9a
One-level magnetic group, two grades of internal layer magnetic piece groups 9d and two grades of outer layer magnetic piece groups 9b constitute two grades of magnetic groups.In fig. 8, one-level internal layer magnetic piece
Circumferentially the air gap is there are, described the air gap is referred to as a air gap 9e between group 9c and one-level outer layer magnetic piece group 9a.Two grades
Circumferentially the air gap is there are, described the air gap is referred to as b gas between internal layer magnetic piece group 9d and two grades of outer layer magnetic piece groups 9b
Gap 9f.In the present invention, in every magnetic piece group, the magnetizing direction of each magnetic piece is radial direction, i.e. the radial direction of duplex sleeve 7.
In the present invention, for each magnetic piece one of magnetic pole arrangement mode as shown in Figure 8 b, in first confined state, respectively
Layer being distributed as of magnetic pole:
The phase of the one-level outer layer each other of aa magnetic piece 9a1, ab magnetic piece 9a2 and ac magnetic piece 9a3 in (a) one-level outer layer magnetic piece group 9a
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of aa magnetic piece 9a1, then it is n pole inwards;The magnetizing direction of ab magnetic piece 9a2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of ac magnetic piece 9a3, then it is n pole inwards.
The phase of the one-level internal layer each other of ca magnetic piece 9c1, cb magnetic piece 9c2 and cc magnetic piece 9c3 in (b) one-level internal layer magnetic piece group 9c
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of ca magnetic piece 9c1, then it is n pole inwards;The magnetizing direction of cb magnetic piece 9c2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of cc magnetic piece 9c3, then it is n pole inwards.
The phase of the two grades of outer layers each other of ba magnetic piece 9b1, bb magnetic piece 9b2 and bc magnetic piece 9b3 in (c) two grades of outer layer magnetic piece groups 9b
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of ba magnetic piece 9b1, then it is n pole inwards;The magnetizing direction of bb magnetic piece 9b2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of bc magnetic piece 9b3, then it is n pole inwards.
The phase of the two grades of internal layers each other of da magnetic piece 9d1, db magnetic piece 9d2 and dc magnetic piece 9d3 in (d) two grades of internal layer magnetic piece groups 9d
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of da magnetic piece 9d1, then it is n pole inwards;The magnetizing direction of db magnetic piece 9d2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of dc magnetic piece 9d3, then it is n pole inwards.
In each layer magnetic pole distribution shown in Fig. 8 b, the just side of magnetizing of the ca magnetic piece 9c1 in one-level magnetic group during confined state
To being s pole for a air gap 9e side, the magnetizing direction of the da magnetic piece 9d1 in two grades of same magnetic groups is that b air gap 9f side is (i.e. outer for s pole
The s pole extremely to internal layer for the n of layer), use the attracting distribution of magnetic piece heteropole;Because the magnetizing direction of magnetic piece is duplex sleeve 7
Radial direction, therefore one-level magnetic group are not affected by magnetic pole on the axial direction of duplex sleeve 7 with two grades of magnetic groups.
In the present invention, for each magnetic piece magnetic pole arrangement mode two as shown in Figure 8 c, in first confined state, respectively
Layer being distributed as of magnetic pole:
The phase of the one-level outer layer each other of aa magnetic piece 9a1, ab magnetic piece 9a2 and ac magnetic piece 9a3 in (a) one-level outer layer magnetic piece group 9a
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of aa magnetic piece 9a1, then it is n pole inwards;The magnetizing direction of ab magnetic piece 9a2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of ac magnetic piece 9a3, then it is n pole inwards.
The phase of the one-level internal layer each other of ca magnetic piece 9c1, cb magnetic piece 9c2 and cc magnetic piece 9c3 in (b) one-level internal layer magnetic piece group 9c
Adjacent magnetic piece.When the outer pole for s of the magnetizing direction of ca magnetic piece 9c1, then it is n pole inwards;The magnetizing direction of cb magnetic piece 9c2 is outer to be
During n pole, then it is s pole inwards;During the outer pole for s of magnetizing direction of cc magnetic piece 9c3, then it is n pole inwards.
The phase of the two grades of outer layers each other of ba magnetic piece 9b1, bb magnetic piece 9b2 and bc magnetic piece 9b3 in (c) two grades of outer layer magnetic piece groups 9b
Adjacent magnetic piece.When the outer pole for n of the magnetizing direction of ba magnetic piece 9b1, then it is s pole inwards;The magnetizing direction of bb magnetic piece 9b2 is outer to be
During s pole, then it is n pole inwards;During the outer pole for n of magnetizing direction of bc magnetic piece 9b3, then it is s pole inwards.
The phase of the two grades of internal layers each other of da magnetic piece 9d1, db magnetic piece 9d2 and dc magnetic piece 9d3 in (d) two grades of internal layer magnetic piece groups 9d
Adjacent magnetic piece.When the outer pole for n of the magnetizing direction of da magnetic piece 9d1, then it is s pole inwards;The magnetizing direction of db magnetic piece 9d2 is outer to be
During s pole, then it is n pole inwards;During the outer pole for n of magnetizing direction of dc magnetic piece 9d3, then it is s pole inwards.
In each layer magnetic pole distribution shown in Fig. 8 c, the just side of magnetizing of the ca magnetic piece 9c1 in one-level magnetic group during confined state
To for a air gap 9e side be s pole, and the magnetizing direction of the da magnetic piece 9d1 in two grades of magnetic groups be b air gap 9f side be n pole (i.e. one-level magnetic
The n pole extremely to internal layer for the s of outer layer in the s pole extremely to internal layer for the n of outer layer or two grades of magnetic groups in group), employing is equally that magnetic piece is different
Extremely attracting distribution;The radial direction being duplex sleeve 7 due to the magnetizing direction of magnetic piece, therefore one-level magnetic group and two grades of magnetic groups are double
Do not affected by magnetic pole on the axial direction of union cylinder 7.
By the magnetic pole distributional analysiss to Fig. 8 b and Fig. 8 c, every group of magnetic pole n pole, s are extremely alternately arranged;Corresponding ectonexine
Two groups of magnetic poles initially assemble seat in decelerator, and at air gap minimum, polarity differs.Attracted each other by different magnetic poles, identical
Magnetic pole mutually exclusive come to realize move transmission.
In the principle according to planet-gear transmission ratio, when internal gear and planetary gear difference are less than 5, easily produce each
Plant and interfere, avoid interference with frequently with profile modified gear.And the decelerator of the present invention is contacted due to mechanical parts, select 4 groups of magnetic
Block group, and the number of magnetic poles of magnetic piece group obtains larger speed reducing ratio.Magnetic pole can arbitrarily be selected according to the gear ratio of required design
Difference.As shown in Fig. 8 b and Fig. 8 c, the magnetic piece magnetic pole difference between internal layer and outer layer is 2.I.e. one-level internal layer magnetic piece group 9c selects 18 pieces
Magnetic piece, one-level outer layer magnetic piece group 9a on the other side selects 20 pieces of magnetic piece.Two grades of internal layer magnetic piece groups 9d select 20 pieces of magnetic piece, therewith
Two grades of relative outer layer magnetic piece groups 9b select 22 pieces of magnetic piece.There is not the constraint of magnetic piece block number between one-level and two grades.
Movement relation
In the present invention, after input shaft 1 is connected with external motor, under the driving of motor, input shaft 1 makees circumference rotation
Motion, now input shaft 1 is little torque, high speed rotary motion;Duplex sleeve 7 is made to make eccentric rotary fortune under deep groove ball bearing
Dynamic, it is bonded in one-level internal layer magnetic piece group 9c on duplex sleeve 7 and two grades of internal layer magnetic piece groups 9d are servo-actuated, under magneticaction, peace
Ring for fixing 6 equipped with two grades of outer layer magnetic piece groups 9b rotates, and a end cap 4 being provided with one-level outer layer magnetic piece group 9a is to maintain static
, because ring for fixing 6 is fixedly mounted with output shaft 2, then output shaft 2 exports big torque, low-speed rotation.
The present invention devises a kind of decelerator with the few range magnetic gear of 2k-h type, and to be solved is how to improve
The technical problem of the vibration of gear reduction unit, overload and sealing lubrication, it is double that the present invention passes through design on the circumference of duplex sleeve
Layer magnetic pole, realizes mechanical and contacts gear-driven double reduction and driving torque and all larger technological means of gear ratio, from
And reach the technique effect of the magnetic speed device of big retarding ratio.