CN103580447B - A kind of double disc type permanent magnet retarder for vehicle - Google Patents
A kind of double disc type permanent magnet retarder for vehicle Download PDFInfo
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- CN103580447B CN103580447B CN201310539585.XA CN201310539585A CN103580447B CN 103580447 B CN103580447 B CN 103580447B CN 201310539585 A CN201310539585 A CN 201310539585A CN 103580447 B CN103580447 B CN 103580447B
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- permanent magnet
- pole piece
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- hollow shaft
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Abstract
The invention discloses a kind of double disc type permanent magnet retarder for vehicle, it is primarily of rotor and stator composition, and rotor is made up of two, left and right rotor disk and rotating shaft; Stator props up primarily of the pole piece support of installation pole piece and the permanent magnet of installation permanent magnet and is configured to; Permanent magnet support and pole piece support laid out in parallel are also placed between two rotor disks in left and right, permanent magnet support is arranged on hollow shaft by sliding bearing, hollow shaft is arranged in rotating shaft by rolling bearing, pole piece support installing is fixedly connected with on hollow shaft and with the bearing cap of rolling bearing, the outer side edges of pole piece support is connected with cylinder assembly, the outer side edges of permanent magnet support is provided with rocking arm, and rocking arm is driven by cylinder assembly.Structure of the present invention is simple, designs ingenious, low cost of manufacture, by controlling the rotational angle of permanent magnet support, and can the size of adjustable brake moment.
Description
Technical field
The present invention relates to auxiliary brake device for automobile, particularly relate to a kind of by Nd-Fe-B permanent magnet axial excitation, the rotor disk that two, left and right rotates produces the double disc type permanent magnet retarder for vehicle of braking moment.
Background technology
Automobile permanent magnet retarder is a kind of novel contactless driving complemental brake system, is mainly arranged in the drive system of vehicle.Vehicle is when mountain area lower long slope travels, and long friction catch can make wheel hub heat up, and causes braking system heat fading, and braking moment reduces, and even loses efficacy, and has had a strong impact on mountain area vehicle driving safety.Braking moment acts in drive system by retarder, when not using or use less the effect playing reduction and stabilizing speed when friction brake, decreases frequency of utilization and the time of friction catch, improves traffic safety.
The feature of permanent-magnet speed buffer has: 1. can realize the miniaturization of product, lightweight; 2. regulate permanent-magnet speed buffer operating state by solenoid control pneumatic means, little power consumption; 3., by permanent magnet excitation, excitation is stablized, and self can not produce heat, can keep stability and the persistence of braking force when continuous firing; 4. contactless braking, safeguards simple.
Existing permanent-magnet speed buffer mostly is drum-type, is all made up of rotor and stator.Chinese invention patent (number of patent application is 200710019389.4) discloses a kind of air-cooled permanent-magnet speed buffer, stator is placed in internal rotor, stator is provided with the permanent magnet that a row fixing permanent magnet and row can rotate in a circumferential direction vertically, the parallel placement of two row permanent magnets and quantity, shape and size are all identical, same column adjacent permanent magnet polarity is contrary.When axially two row permanent magnet polarities are contrary, the magnetic line of force is shielded by yoke, and rotor is cutting magnetic line not, and permanent-magnet speed buffer is in non-brake state; Rotate a row permanent magnet to certain angle, when axially two row permanent magnet polarities are identical, the magnetic line of force enters rotor through yoke and air gap, and rotor cutting magnetic line produces eddy current and braking moment, and permanent-magnet speed buffer is in on-position.Utilize air control unit, the rotational angle of a rotatable row permanent magnet can be changed arbitrarily in the angular range of setting, reach the electrodeless adjustable object of braking moment.Chinese invention patent (number of patent application is 201019114044.6) discloses a kind of water-cooled permanent-magnet speed buffer, this retarder comprises the stators and rotators in shell and shell, rotor is circumferentially uniformly fixed wtih even numbered blocks permanent magnet, and adjacent permanent magnet polarity is contrary; Stator in shell has cooling water channel, and can be moved axially by air control unit, regulates the position to axial of stator and rotor by changing displacement, and then controls the size of braking moment.Above-mentioned air-cooled permanent-magnet speed buffer compact conformation, but the shortcoming such as it is little to there is braking moment, and area of dissipation is little, heat dispersion is poor; Water-cooled permanent-magnet speed buffer good cooling results, braking moment is stablized, but needs to connect water-cooled pipeline, complex structure, and quality and volume are comparatively large, and will carry out freeze protection measures during low temperature.
(number of patent application is Chinese invention patent: 200610057992.7) disclose a kind of desk permanent-magnet retarder.It is made up of band two, gelled left and right rotor and the stator be placed in the middle of two rotors, and stator is installed with rotor is concentric.Stator by: support, permanent magnet, magnetic guiding jar, cylinder, magnetic guiding loop, magnetic conductive board, movable magnet ring, piston ring form.Control by cylinder the position that in magnetic guiding jar, magnetic guiding loop moves axially, the magnetic flux size by rotor can be controlled, thus control the operating state of permanent-magnet speed buffer.This permanent-magnet speed buffer has two rotors, and area of dissipation is large and radiating effect good, and braking moment is stablized, but complex structure, to install and to control difficulty larger.
Summary of the invention
It is poor to the object of the invention is to improve existing permanent-magnet speed buffer heat dispersion, the defect that braking moment is little, there is provided that a kind of volume is little, quality is light, good heat dissipation effect, braking moment is large and constant and can realize the adjustable double disc type permanent magnet retarder for vehicle of braking moment.
A kind of double disc type permanent magnet retarder for vehicle of the present invention, primarily of rotor and stator composition, described rotor is made up of two, left and right rotor disk 3 and rotating shaft 11, and two, left and right rotor disk 3 is symmetrically placed in stator both sides and is arranged in rotating shaft 11, and rotor disk 3 is formed with truck drive shaft and is connected; Stator is made up of cylinder assembly 1, some permanent magnets 5, permanent magnet support 6, sliding bearing 7, hollow shaft 8, some pole pieces 17, pole piece support 18, described pole piece 17 is uniformly distributed and is set on pole piece support 18, described permanent magnet 5 is axial excitation, magnetic pole between two identical annular is distributed on permanent magnet support 6, and permanent magnet 5 quantity is just the twice of a pole piece support upper pole piece quantity; Permanent magnet support 6 and pole piece support 18 laid out in parallel are also placed between two rotor disks 3 in left and right, permanent magnet support 6 is arranged on hollow shaft 8 by sliding bearing 7, hollow shaft 8 is connected with rotating shaft 11 by rolling bearing 13, pole piece support 18 is arranged on hollow shaft 8 and with the bearing cap 14 of rolling bearing 13 and is fixedly connected with, the outer side edges of pole piece support 18 is connected with cylinder assembly 1, the outer ledge of permanent magnet support 6 is provided with rocking arm 19, and rocking arm 19 is driven by cylinder assembly 1.
Double disc type permanent magnet retarder for vehicle of the present invention, described rotor disk has the screw (9) for connecting truck drive shaft.
Double disc type permanent magnet retarder for vehicle of the present invention, the pole piece support 18 of described installation pole piece 17 is provided with two, is arranged on the both sides of permanent magnet support 6 respectively; Each pole piece support 18 center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with the fan-shaped pylone for installing pole piece 17, be provided with 8 circular holes for connection bearing lid 14 inside it, outside is provided with 8 for connecting the circular hole of cylinder assembly 1 and body of a motor car.
Double disc type permanent magnet retarder for vehicle of the present invention, described permanent magnet support 6 center is provided with circular hole and is provided with sliding bearing 7, the interior hole size of sliding bearing 7 is corresponding with hollow shaft 8 installation site, permanent magnet support 6 annular is evenly equipped with the fan-shaped pylone for installing permanent magnet 5, and its outward flange is provided with two symmetrical rocking arms 19.
The invention has the beneficial effects as follows:
1. by adopting Nd-Fe-B permanent magnet excitation, itself does not generate heat, and does not have heat fading, and braking moment is stablized.
2. adopt double plate rotor, the active area of permanent magnet transfer is large, and braking moment is large, and area of dissipation is large simultaneously, good heat dissipation effect.
3. stator adopts light-weight non-magnetic to do framework, compact overall structure, and volume is little, quality is light, and leakage field is little.
4., by the control of cylinder assembly, the rotational angle of permanent magnet and permanent magnet support can consecutive variations within the specific limits, and therefore braking moment also can electrodelessly regulate, and adapts to the needs of different road conditions.
5. stators and rotators is connected by rolling bearing, and width of air gap is even.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of the present invention.
Fig. 2 is the structural representation of permanent magnet of the present invention and permanent magnet support.
Fig. 3 is the structural representation of pole piece of the present invention and pole piece support.
Fig. 4 is the structural representation under non-brake state of the present invention.
Fig. 5 is the structural representation under on-position of the present invention.
In figure: 1. cylinder assembly, 2. the first air gap regulates pad, 3. rotor disk, 4. fin, 5. permanent magnet, 6. permanent magnet support, 7. sliding bearing, 8. hollow shaft, 9. screw, 10. spline, 11. rotating shafts, 12. the 3rd air gaps regulate pad, 13. rolling bearings, 14. bearing caps, 15. bearing clearancees regulate pad, and 16. interstices regulate pad, 17. pole pieces, 18. pole piece supports, 19. rocking arms.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Contrast Fig. 1-3, double disc type permanent magnet retarder for vehicle of the present invention is primarily of rotor and stator composition, and rotor can rotate around stator center.Described rotor is made up of two, left and right rotor disk 3 and rotating shaft 11, two rotor disks 3 in left and right are symmetrically placed in stator both sides and are arranged in rotating shaft 11, rotor disk 3 and truck drive shaft are formed by screw 9 and are connected, rotor disk 3 is provided with fin 4, rotating shaft 11 is connected by spline 10 with rotor disk 3, and the two ends nut of rotating shaft 11 is fixed.Be provided with the 3rd air gap between rotor disk 3 and rotating shaft 11 and regulate pad 12, air gap between rotor disk 3 and stator regulates the thickness of pad 12 to regulate by increasing and decreasing the 3rd air gap, width of air gap is generally between 0.8-3mm, rotor disk 3 carries out wind-cooling heat dissipating by fin 4, rotor disk 3 is provided with six screws 9, for connecting the ring flange on truck drive shaft simultaneously.
Stator is made up of cylinder assembly 1, some permanent magnets 5, permanent magnet support 6, sliding bearing 7, hollow shaft 8, some pole pieces 17 and two pole piece supports 18, hollow shaft 8 is connected with rotating shaft 11 by rolling bearing 13, hollow shaft 8 is stator support, for supports permanent magnets support 6 and pole piece support 18, hollow shaft 8 is provided with eight circular holes, for installing pole piece support 18, pole piece support 18 is formed a fixed connection by bolt and bearing cap 14 and hollow shaft 8.
Described pole piece 17 is uniformly distributed and is set on pole piece support 18, and pole piece support 18 is provided with inside and outside annular two row circular holes, and interior circular hole is used for being fixed on hollow shaft 8, and outer circle hole is for installing cylinder assembly 1 and being connected with body of a motor car.
Described permanent magnet 5 is axial excitation, identical annular is uniform is between two set on permanent magnet support 6 for magnetic pole, permanent magnet 5 quantity is just the twice of a pole piece support upper pole piece quantity, and permanent magnet support 6 and two pole piece support 18 laid out in parallel are also placed between two rotor disks 3 in left and right.
Double disc type permanent magnet retarder for vehicle of the present invention, the outer side edges of described pole piece support 18 and the junction of cylinder assembly 1 are provided with the first air gap and regulate pad 2, interstice is installed between pole piece support 18 and hollow shaft 8 and regulates pad 16, air gap between pole piece 17 and permanent magnet 5 regulates pad 2 and interstice to regulate pad 16 to regulate by the first air gap, and the width control system of air gap is at 0.2-0.5mm.
Double disc type permanent magnet retarder for vehicle of the present invention, is provided with gap adjustment pad 15 between described rolling bearing 13 and bearing cap 14.
Double disc type permanent magnet retarder for vehicle of the present invention, the pole piece support 18 of described installation pole piece 17 is arranged on the both sides of permanent magnet support 6 respectively; Each pole piece support 18 is made up of light-weight non-magnetic, its center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with the fan-shaped pylone for installing pole piece 17, be provided with 8 circular holes for connection bearing lid 14 inside it, outside is provided with 8 for connecting the circular hole of cylinder assembly 1 and body of a motor car.
Double disc type permanent magnet retarder for vehicle of the present invention, described permanent magnet support 6 is made up of light-weight non-magnetic, its center is provided with circular hole and is provided with sliding bearing 7, the interior hole size of sliding bearing 7 is corresponding with hollow shaft 8 installation site, and permanent magnet support 6 annular is evenly equipped with the fan-shaped pylone for installing permanent magnet 5.Permanent magnet support 6 to be connected with hollow shaft 8 by sliding bearing 7 and can to relatively rotate, the outer ledge of permanent magnet support 6 is symmetrically installed with rocking arm 19; rocking arm 19 is connected with cylinder assembly 1; promote rocking arm 19 by cylinder assembly 1; make the rectilinear motion of cylinder assembly 1 be converted to the rotary motion of permanent magnet 5 and permanent magnet support 6 by rocking arm 19; realize permanent magnet support 6 and relatively rotate around hollow shaft 8 together with permanent magnet 5; change the circumferential relative position of permanent magnet and pole piece, serve the effect of magnetic circuit.
Described permanent magnet 5 is axial excitation, and pole piece 17 is that ferrimagnet is made, and permanent magnet support 6 is made up of light-weight non-magnetic with pole piece support 18, plays weight reduction, reduces the effect of leakage field.
Operation principle of the present invention and the course of work:
Contrast Fig. 4, when automobile does not need braking, cylinder assembly 1 does not have action, be in initial position, the corresponding same pole piece 17 of permanent magnet 5 that adjacent polarity is different, the magnetic line of force is not by left/right rotation sub-disk 3, the magnetic line of force forms loop between permanent magnet 5, air gap and pole piece 17, rotor disk 3 not cutting magnetic line, permanent-magnet speed buffer of the present invention does not have braking moment, is now in non-brake state.
Contrast Fig. 5, when automobile needs braking, rocking arm 19 is promoted by solenoid control cylinder assembly 1, permanent magnet 5 is turned an angle around hollow shaft 8 with rocking arm 19 with permanent magnet support 6, the corresponding same pole piece 17 of the permanent magnet 5 making adjacent polarity identical, the magnetic line of force that permanent magnet 5 produces enters into rotor disk 3 through pole piece 17, the magnetic line of force forms loop between permanent magnet 5, air gap, pole piece 17, rotor disk 3, rotor disk 3 cutting magnetic line, permanent-magnet speed buffer of the present invention has maximum braking moment, is now in on-position; Continuously changed the rotational angle of rocking arm by the distance of continuous control cylinder assembly rectilinear motion, thus the rotational angle realizing controlling permanent magnet support 6 controls the active area of permanent magnet 5 and pole piece 17, and then control the size of braking moment.
Claims (4)
1. a double disc type permanent magnet retarder for vehicle, primarily of rotor and stator composition, it is characterized in that, described rotor is made up of two, left and right rotor disk (3) and rotating shaft (11), two rotor disks (3) in left and right are symmetrically placed in stator both sides and are arranged in rotating shaft (11), and rotor disk (3) is formed with truck drive shaft and is connected, stator is made up of cylinder assembly (1), some permanent magnets (5), permanent magnet support (6), sliding bearing (7), hollow shaft (8), some pole pieces (17), pole piece support (18), described pole piece (17) is uniformly distributed and is set on pole piece support (18), described permanent magnet (5) is axial excitation, magnetic pole between two identical annular is distributed on permanent magnet support (6), and permanent magnet (5) quantity is just the twice of a pole piece support upper pole piece quantity, permanent magnet support (6) and pole piece support (18) laid out in parallel are also placed between two rotor disks (3) in left and right, permanent magnet support (6) is arranged on hollow shaft (8) by sliding bearing (7), hollow shaft (8) is connected with rotating shaft (11) by rolling bearing (13), pole piece support (18) is arranged on hollow shaft (8) and goes up and be fixedly connected with the bearing cap (14) of rolling bearing (13), the outer side edges of pole piece support (18) is connected with cylinder assembly (1), the outer ledge of permanent magnet support (6) is provided with rocking arm (19), rocking arm (19) is driven by cylinder assembly (1).
2. double disc type permanent magnet retarder for vehicle according to claim 1, is characterized in that rotor disk there is the screw (9) for connecting truck drive shaft.
3. double disc type permanent magnet retarder for vehicle according to claim 1, it is characterized in that, the pole piece support (18) of described installation pole piece (17) is provided with two, is arranged on the both sides of permanent magnet support (6) respectively; Each pole piece support (18) center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with the fan-shaped pylone for installing pole piece (17), be provided with 8 circular holes for connection bearing lid (14) inside it, outside is provided with 8 for connecting the circular hole of cylinder assembly (1) and body of a motor car.
4. double disc type permanent magnet retarder for vehicle according to claim 1, it is characterized in that, described permanent magnet support (6) center is provided with circular hole and is provided with sliding bearing (7), the interior hole size of sliding bearing (7) is corresponding with hollow shaft (8) installation site, permanent magnet support (6) annular is evenly equipped with the fan-shaped pylone for installing permanent magnet (5), and its outward flange is provided with two symmetrical rocking arms (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539585.XA CN103580447B (en) | 2013-11-04 | 2013-11-04 | A kind of double disc type permanent magnet retarder for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539585.XA CN103580447B (en) | 2013-11-04 | 2013-11-04 | A kind of double disc type permanent magnet retarder for vehicle |
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| Publication Number | Publication Date |
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| CN103580447A CN103580447A (en) | 2014-02-12 |
| CN103580447B true CN103580447B (en) | 2015-11-25 |
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| CN201310539585.XA Expired - Fee Related CN103580447B (en) | 2013-11-04 | 2013-11-04 | A kind of double disc type permanent magnet retarder for vehicle |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578640B (en) * | 2015-02-13 | 2017-03-08 | 大连莫迪科技有限责任公司 | Double-flanged end linear electric motors actuating device for logistics sorting arrangement |
| CN107659117A (en) * | 2016-07-23 | 2018-02-02 | 李启飞 | Magnetic force retarder |
| CN106712417B (en) * | 2017-03-16 | 2024-06-18 | 迈格钠磁动力股份有限公司 | Disc type permanent magnet eddy current retarder for vehicle |
| CN108988607A (en) * | 2017-06-05 | 2018-12-11 | 李启飞 | The very big load regulatable magnetic force retarder of fluid regulation type |
| CN110460216A (en) * | 2018-05-07 | 2019-11-15 | 迈格钠磁动力股份有限公司 | A kind of swing arm vehicle liquid cold dish formula permanent-magnet eddy current flexibility retarder |
| CN108895096B (en) * | 2018-08-02 | 2019-12-03 | 江苏大学 | A kind of permanent magnetism double disk brake and its braking method |
Citations (5)
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| CN1812233A (en) * | 2006-03-03 | 2006-08-02 | 北京工业大学 | Permanent-magnet eddy current retarder for vehicle |
| CN2857329Y (en) * | 2005-12-22 | 2007-01-10 | 扬州市洪泉实业有限公司 | Permanent-magnet speed reducer |
| CN101009456A (en) * | 2007-01-19 | 2007-08-01 | 南京农业大学 | Braking moment stepless regulation permanent-magnet buffer |
| DE102010019318A1 (en) * | 2010-05-03 | 2011-11-03 | Voith Turbo Smi Technologies Gmbh & Co. Kg | Permanent magnet retarder, has set of intermediate elements juxtaposed to permanent magnets in one position, and actuator connected to permanent magnets and/or switching element via lever mechanism |
| CN203537209U (en) * | 2013-11-04 | 2014-04-09 | 广西大学 | Automotive double-plate type permanent-magnet retarder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004328891A (en) * | 2003-04-24 | 2004-11-18 | Isuzu Motors Ltd | Eddy current type reduction gear unit |
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2013
- 2013-11-04 CN CN201310539585.XA patent/CN103580447B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2857329Y (en) * | 2005-12-22 | 2007-01-10 | 扬州市洪泉实业有限公司 | Permanent-magnet speed reducer |
| CN1812233A (en) * | 2006-03-03 | 2006-08-02 | 北京工业大学 | Permanent-magnet eddy current retarder for vehicle |
| CN101009456A (en) * | 2007-01-19 | 2007-08-01 | 南京农业大学 | Braking moment stepless regulation permanent-magnet buffer |
| DE102010019318A1 (en) * | 2010-05-03 | 2011-11-03 | Voith Turbo Smi Technologies Gmbh & Co. Kg | Permanent magnet retarder, has set of intermediate elements juxtaposed to permanent magnets in one position, and actuator connected to permanent magnets and/or switching element via lever mechanism |
| CN203537209U (en) * | 2013-11-04 | 2014-04-09 | 广西大学 | Automotive double-plate type permanent-magnet retarder |
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