CN102979837B - Permanent magnet disc brake and braking method thereof - Google Patents
Permanent magnet disc brake and braking method thereof Download PDFInfo
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- CN102979837B CN102979837B CN201210502750.XA CN201210502750A CN102979837B CN 102979837 B CN102979837 B CN 102979837B CN 201210502750 A CN201210502750 A CN 201210502750A CN 102979837 B CN102979837 B CN 102979837B
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Abstract
The invention discloses a permanent magnet disc brake for a vehicle and a braking method thereof. The side face of each stator disc, which faces a brake disc, is a closed side face formed by N pieces of magnetic conduction plates and N pieces of magnetic isolation plates which are alternately arranged; each rotor disc comprises N pieces of permanent magnet plates and N-1 pieces of clapboards which are alternately arranged; the N poles and the S poles of the permanent magnet plates on the same rotor disc are alternately arranged; and the polarities of every two opposite permanent magnet plates on the two rotor discs are opposite. When the vehicle runs normally, the permanent magnet plates face the magnetic isolation plates, and the clapboards face the magnetic conduction plates. When baking the vehicle, the two rotor discs simultaneously rotate to a position where the permanent magnet plates face the magnetic conduction plates and the clapboards face the magnetic isolation plates, then the permanent magnet plates magnetize the magnetic conduction plates and eddy current is generated on the brake disc to realize braking through eddy current. The magnitude of the braking force can be adjusted by adjusting the rotation angle of the rotor discs.
Description
Technical field
The present invention relates to the brake structural for vehicle, specifically permanent-magnet disk brake structural and braking method.
Background technique
Vehicle adopts multiple mode of braking Associated brake, greatly can ensure the traffic safety of hot-short.At present, vehicle widely uses disk type friction brake, as adhesion braking, the braking force that disk type friction brake produces is by the restriction of adhesion condition, vehicle, under the state of running at high speed, will inevitably increase its stopping distance, and if stopping distance need be shortened, then need to increase braking deceleration, this just needs to adopt multiple mode of braking Associated brake.Vehicle adds desk permanent-magnet braking on the basis of original disk-type friction mode of braking, then can increase braking force, shortens stopping distance, the greatly traffic safety of support vehicles.
Magnetic brake comprises electromagnetic braking and permanent magnet braking two kinds of forms, wherein, permanent magnet braking with its not consumed energy, non-maintaining, high speed braking ability is good etc., and advantage obtains payes attention to widely.Be applied to by permanent magnet braking on vehicle, in emergency braking process, do not need vehicle battery to provide energy, when the vehicle is still, can be used for the parking braking of vehicle, what replace on car is hand braking, thus simplifies the setting type of break.Therefore, permanent magnet braking can be used as the one in hot-short Associated brake mode and adopts.
The break that existing friction catch combines with permanent magnet braking, its structure is: the permanent magnet braking device be made up of concentrating flux plate, magnetic guiding loop, concentrating flux sleeve and permanent magnet is fixed on the fixing frame that is connected with brake disc, and be symmetrically distributed in brake disc both sides, permanent magnet in concentrating flux sleeve can to-and-fro motion vertically under the promotion of first, second valve joint air pressure or hydraulic pressure, is having catch to limit the minimum range between permanent magnet and brake disc near brake disc side.When permanent magnet moves to catch position, externally manifest magnetic field, can braking force be produced, and the size of braking force changes by regulating the position of permanent magnet motion; When permanent magnet moves to from brake disc position farthest, magnetic field is closed, and does not have braking effect.The deficiency of the break that this friction catch combines with permanent magnet braking is: the volume of permanent magnet is too little, makes braking force limited; Rely on and change moving axially distance to realize braking or removing of permanent magnet, brake disc both sides are just needed axially to leave sufficient space, and the free space installing the automobile brake disc both sides of disk type friction brake is at present less, this just needs special break for this reason to expand the space of brake disc both sides; Further, the suction between permanent magnet and between permanent magnet from brake disc is with the different of distance in nonlinear change, and the size of braking force changes wayward.
Summary of the invention
The object of this invention is to provide a kind of permanent-magnet disk break that can control the change of braking force size, realize safety brake, the present invention also provides the braking method of this permanent-magnet disk break simultaneously.
The technological scheme that permanent-magnet disk break of the present invention adopts is: comprise the rotor disk that two identical stator discs are identical with two, two stator discs are distributed in the both sides of brake disc, a stator disc is embedded with a rotor disk, near the affixed wheel axle housing of stator disc of wheel axle housing side, what connect between two stator discs is positioning bolt, the first oil hydraulic cylinder of connecting two rotor disks and the second oil hydraulic cylinder driving opposite side stator disc to move axially along positioning bolt; Stator disc to be alternately arranged the side closed by N number of magnetic conducting plate and N number of antifreeze plate in the face of a side of brake disc; Rotor disk comprises the N number of permanent magnet piece and N-1 dividing plate that are alternately arranged; Its N pole of N number of permanent magnet piece on same rotor disk and S pole are alternately arranged and arrange; The polarity of two permanent magnet piece facing on two rotor disks is contrary.
The technological scheme that the braking method of permanent-magnet disk break of the present invention adopts is: when vehicle normally runs, second oil hydraulic cylinder makes stator disc and brake disc keep gap, first Hydraulic Cylinder two rotor disk rotates simultaneously, make permanent magnet piece and antifreeze plate position is facing, dividing plate and magnetic conducting plate position facing; During car brakeing, the first oil hydraulic cylinder makes two rotor disks rotate to permanent magnet piece and magnetic conducting plate to be in facing position, dividing plate and antifreeze plate and to be in facing position simultaneously, and permanent magnet piece magnetization magnetic conducting plate, brake disc produces electric convolution, realizes eddy-current brake; By the size of regulating rotary sub-disk angle of swing with regulating brake force size; During stationary vehicle, first two rotor disks are made to rotate to permanent magnet piece, dividing plate position facing with the magnetic conducting plate on stator disc, antifreeze plate respectively by the first oil hydraulic cylinder, after remove hydraulic pressure in the first oil hydraulic cylinder, the second oil hydraulic cylinder, described opposite side stator disc adhesive brake disc, realizes parking braking.
Usefulness of the present invention is: the present invention can need to realize contactless eddy-current brake during braking in vehicle operating, avoid the frictional heat between two stator discs and brake disc, thus reduce the stopping distance of vehicle, extend the working life of disk type friction brake.Change the braking moment of output by the angle of swing of regulating rotary sub-disk, realize safety brake, reach the object ensureing vehicle safe driving.When vehicle stops, can realizing the parking braking of suction friction formula, not slip when ensureing stationary vehicle, what replace on vehicle is hand braking, thus simplifies break setting type.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of permanent-magnet disk break of the present invention;
Fig. 2 is that permanent-magnet disk brake shaft of the present invention is to the Local map after vertical profile;
Fig. 3 is antifreeze plate in Fig. 1 on stator disc 43 and the layout schematic diagram of magnetic conducting plate 2;
Fig. 4 is dividing plate in Fig. 2 transfer sub-disk 13 10 and the layout schematic diagram of permanent magnet piece 11;
Fig. 5 is the assembling schematic diagram of rotor disk 13 and stator disc 4;
Fig. 6 is antifreeze plate on stator disc 43 and magnetic conducting plate 2 and the location diagram of the dividing plate 10 on rotor disk 13 with permanent magnet piece 11;
Fig. 7 be brake disc 9 both sides rotor disk 13 on the polarity arrangement schematic diagram of permanent magnet piece 11;
Fig. 8 is antifreeze plate 3 on stator disc 4 and magnetic conducting plate 2 and the schematic diagram of permanent magnet piece 11 on rotor disk 13 and dividing plate 10.
Mark in accompanying drawing illustrates: 1-positioning bolt; 2-magnetic conducting plate; 3-antifreeze plate; 4-stator disc; 5-first oil hydraulic cylinder; 6-second oil hydraulic cylinder; 7-wheel axle housing; 8-securing supports; 9-brake disc; 10-dividing plate; 11-permanent magnet piece; 12-hairclipper; 13-rotor disk.
Embodiment
The present invention relates to the permanent-magnet disk break that a kind of vehicle uses, its thin portion structure is shown in Fig. 1 ~ 8.This permanent-magnet disk break comprises the both sides that two identical stator discs 4 rotor disk 13, two stator discs 4 identical with two are distributed in brake disc 9, and two rotor disks 13 are embedded in two stator discs 4 respectively, i.e. an embedded rotor disk 13 of stator disc 4.By positioning bolt 1 between two stator discs 4, first oil hydraulic cylinder 5 and the second oil hydraulic cylinder 6 link together, stator disc 4 wherein near wheel axle housing 7 side is fixed on wheel axle housing 7 by securing supports 8, and keep appropriate gap with brake disc 9, the stator disc 4 of opposite side can move axially along positioning bolt 1, make the stator disc 4 of the opposite side moved axially near or away from brake disc 9, but it moves the constraint by the second oil hydraulic cylinder 6, second oil hydraulic cylinder 6 keeps hydraulic pressure to make to keep certain interval between stator disc 4 and brake disc 9, first oil hydraulic cylinder 5 promotes two rotor disks 13 and rotates, thus form the overall structure of break.
As shown in Fig. 1,2,3,5,6,8, stator disc 4 is in the inner side near brake disc 9, and namely in the face of the side of brake disc 9, be the side closed with N number of antifreeze plate 3 by N number of magnetic conducting plate 2, antifreeze plate 3 and magnetic conducting plate 2 are alternately arranged.
As shown in Fig. 4,5,6,8, rotor disk 13 comprises N number of permanent magnet piece 11 and N-1 dividing plate 10, permanent magnet piece 11 and dividing plate 10 are also alternately arranged, when position of rest of the present invention, rotor disk 13 aligns with stator disc 4, makes the permanent magnet piece 11 on rotor disk 13 and dividing plate 10 relative with magnetic conducting plate 2 with the antifreeze plate 3 on stator disc 4 respectively.Cloth postpone like this, stator disc 4 has more the area of one piece of magnetic conducting plate 2 than rotor disk 13.Its N pole of N number of permanent magnet piece 11 on same rotor disk 13 and S pole are arranged (as shown in Figure 8) by the method be alternately arranged.The polarity contrary (as shown in Figure 7) of two permanent magnet piece 11 facing on two rotor disks 13 of brake disc 9 both sides.Magnetic conducting plate 2 is made with soft magnetic material, and the shell of antifreeze plate 3, dividing plate 10 and stator disc 4 is made up of non-magnet material, and antifreeze plate 3, dividing plate 10 play magnetic confining field, and magnetic conducting plate 2 can be magnetized by permanent magnet piece 11, plays a part to transmit magnetic field.
As Fig. 1, 5, 7, shown in 8, when vehicle normally runs, second oil hydraulic cylinder 6 makes to keep certain interval between stator disc 4 and brake disc 9, first oil hydraulic cylinder 5 makes two rotor disks 13 rotate by the hairclipper 12 be connected on two rotor disks 13 to promote hairclipper 12 simultaneously, make the permanent magnet piece 11 on two rotor disks 13 and antifreeze plate 3 position on stator disc 4 facing, dividing plate 10 on two rotor disks 13 and magnetic conducting plate 2 position on stator disc 4 also facing, now, the magnetic line of force of the permanent magnet piece 11 in rotor disk 13 completely close by non-magnetizer antifreeze plate 3, brake disc 9 not cutting magnetic line, brakeless power produces.When vehicle operating needs braking, first oil hydraulic cylinder 5 pressurizes, the permanent magnet piece 11 that two rotor disks 13 are rotated on rotor disk 13 is simultaneously in facing position with the magnetic conducting plate 2 on stator disc 4, simultaneously, dividing plate 10 on rotor disk 13 is also in facing position with the antifreeze plate 3 on stator disc 4, now, magnetic conducting plate 2 on permanent magnet piece 11 magnetized stator dish 4 on rotor disk 13, make the polarity of magnetic conducting plate 2 relative on two stator discs 4 contrary, realize the closed of magnetic field, because two stator discs 4 do not have adhesive with brake disc 9, brake disc 9 is the circumgyration incision magnetic line of force in permanent magnetic field, brake disc 9 produces electric convolution, magnetic field produces resistance to brake disc 9, thus realize contactless eddy-current brake.In addition, by the size of regulating rotary sub-disk 13 angle of swing, then can regulate the power in magnetic field, thus realize the adjustment of braking force size.When the vehicle is still, first under the effect of the first oil hydraulic cylinder 5, make two rotor disks 13 rotate to permanent magnet piece 11 on rotor disk 13 and dividing plate 10 respectively with the magnetic conducting plate 2 on stator disc 4 and the facing position of antifreeze plate 3, then remove the hydraulic pressure in the first oil hydraulic cylinder 5, second oil hydraulic cylinder 6, because the magnetic conducting plate 2 on the 11 pairs of stator discs 4 of the permanent magnet piece on rotor disk 13 magnetizes and the suction of suction and magnetic conducting plate 2 pairs of brake discs 9, the outer stator dish 4 moved axially is made to be pull-in on brake disc 9, stop brake disc 9 to rotate, thus realize parking braking.
Claims (2)
1. a permanent-magnet disk break, comprise the rotor disk (13) that two identical stator discs (4) are identical with two, two stator discs (4) are distributed in the both sides of brake disc (9), a stator disc (4) is embedded with a rotor disk (13), it is characterized in that: near the affixed wheel axle housing (7) of stator disc (4) of wheel axle housing (7) side, what connect between two stator discs (4) is positioning bolt (1), the first oil hydraulic cylinder (5) connecting two rotor disks (13) and the second oil hydraulic cylinder (6) driving opposite side stator disc (4) to move axially along positioning bolt (1), stator disc (4) to be alternately arranged the side closed by N number of magnetic conducting plate (2) and N number of antifreeze plate (3) in the face of a side of brake disc (9), rotor disk (13) comprises the N number of permanent magnet piece (11) and N-1 dividing plate (10) that are alternately arranged, its N pole of N number of permanent magnet piece (11) on same rotor disk (13) and S pole are alternately arranged and arrange, the polarity of two upper two facing permanent magnet piece (11) of rotor disk (13) is contrary.
2. the braking method of a permanent-magnet disk break as claimed in claim 1, it is characterized in that: when vehicle normally runs, second oil hydraulic cylinder (6) makes stator disc (4) and brake disc (9) keep gap, first oil hydraulic cylinder (5) promotes two rotor disks (13) and rotates simultaneously, make permanent magnet piece (11) and antifreeze plate (3) position is facing, dividing plate (10) and magnetic conducting plate (2) position facing;
During car brakeing, first oil hydraulic cylinder (5) makes two rotor disks (13) rotate to simultaneously, and permanent magnet piece (11) is in facing position with magnetic conducting plate (2), dividing plate (10) is in facing position with antifreeze plate (3), permanent magnet piece (11) magnetization magnetic conducting plate (2), (9) produce electric convolution to brake disc, realize eddy-current brake; By the size of regulating rotary sub-disk (13) angle of swing with regulating brake force size;
During stationary vehicle, first two rotor disks (13) are made to rotate to permanent magnet piece (11), dividing plate (10) position facing with the magnetic conducting plate (2) on stator disc (4), antifreeze plate (3) respectively by the first oil hydraulic cylinder (5), after remove hydraulic pressure in the first oil hydraulic cylinder (5), the second oil hydraulic cylinder (6), described opposite side stator disc (4) adhesive brake disc (9), realizes parking braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502750.XA CN102979837B (en) | 2012-11-30 | 2012-11-30 | Permanent magnet disc brake and braking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502750.XA CN102979837B (en) | 2012-11-30 | 2012-11-30 | Permanent magnet disc brake and braking method thereof |
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| Publication Number | Publication Date |
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| CN102979837A CN102979837A (en) | 2013-03-20 |
| CN102979837B true CN102979837B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210502750.XA Active CN102979837B (en) | 2012-11-30 | 2012-11-30 | Permanent magnet disc brake and braking method thereof |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252716A (en) * | 2013-05-10 | 2013-08-21 | 岳阳市永金起重永磁铁有限公司 | Vertical round mill magnetic force working platform |
| CN106043350A (en) * | 2016-05-27 | 2016-10-26 | 同济大学 | Independent control braking system used for tramcar early warning avoidance |
| CN106081148B (en) * | 2016-06-17 | 2019-04-16 | 哈尔滨工业大学 | Aircraft warship or landing electromagnetism arresting gear |
| CN106712450B (en) * | 2017-01-20 | 2018-12-11 | 哈尔滨工业大学 | Middle tone magnetic-type axial direction integrated form electric stepless gear |
| CN108895096B (en) * | 2018-08-02 | 2019-12-03 | 江苏大学 | A kind of permanent magnetism double disk brake and its braking method |
| CN109058328B (en) * | 2018-08-13 | 2020-01-24 | 江苏大学 | Vehicle wheel-side composite braking device integrating permanent magnet braking and friction braking |
| CN109624954A (en) * | 2018-12-06 | 2019-04-16 | 北京长城华冠汽车科技股份有限公司 | A kind of braking system and automobile |
| CN109733366B (en) * | 2018-12-17 | 2021-04-20 | 江苏大学 | Electromagnetic wedge type braking structure and braking electric energy control method |
| CN109969149B (en) * | 2019-03-04 | 2021-02-23 | 北京汽车股份有限公司 | Disc brake, control system thereof and vehicle |
| CN111237361B (en) * | 2020-03-10 | 2021-10-26 | 南京工程学院 | Rotary type friction and double-layer built-in permanent magnet integrated type braking device for vehicle |
| CN111216697B (en) * | 2020-03-10 | 2020-11-24 | 南京工程学院 | Translation type permanent magnet and friction integrated brake device for vehicle |
Citations (5)
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|---|---|---|---|---|
| JPS59226756A (en) * | 1983-06-03 | 1984-12-19 | Sumitomo Special Metals Co Ltd | Hysteresis coupling |
| JPH02159961A (en) * | 1988-12-12 | 1990-06-20 | Sumitomo Metal Ind Ltd | Eddy current reduction gear |
| CN2504156Y (en) * | 2001-10-31 | 2002-08-07 | 李江 | Decelerator |
| CN201577018U (en) * | 2009-11-24 | 2010-09-08 | 南京艾凌节能技术有限公司 | Novel permanent magnet rotor of permanent magnet speed regulator |
| CN201918876U (en) * | 2010-08-31 | 2011-08-03 | 东南大学 | Disc-type wheel motor |
-
2012
- 2012-11-30 CN CN201210502750.XA patent/CN102979837B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59226756A (en) * | 1983-06-03 | 1984-12-19 | Sumitomo Special Metals Co Ltd | Hysteresis coupling |
| JPH02159961A (en) * | 1988-12-12 | 1990-06-20 | Sumitomo Metal Ind Ltd | Eddy current reduction gear |
| CN2504156Y (en) * | 2001-10-31 | 2002-08-07 | 李江 | Decelerator |
| CN201577018U (en) * | 2009-11-24 | 2010-09-08 | 南京艾凌节能技术有限公司 | Novel permanent magnet rotor of permanent magnet speed regulator |
| CN201918876U (en) * | 2010-08-31 | 2011-08-03 | 东南大学 | Disc-type wheel motor |
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| CN102979837A (en) | 2013-03-20 |
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Effective date of registration: 20171120 Address after: 212100 Zhenjiang City, Jiangsu province Dantu District Tan Kwai Road No. 1 Patentee after: JIANGSU HUIZHI INTELLECTUAL PROPERTY SERVICES CO., LTD. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: Jiangsu University |
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Effective date of registration: 20200624 Address after: No. 159, Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangyin Intellectual Property Operation Co., Ltd Address before: 212100 Zhenjiang City, Jiangsu province Dantu District Tan Kwai Road No. 1 Patentee before: JIANGSU HUIZHI INTELLECTUAL PROPERTY SERVICES Co.,Ltd. |