CN102128227B - Brake method of electromagnet and friction composite disc type brake - Google Patents
Brake method of electromagnet and friction composite disc type brake Download PDFInfo
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- CN102128227B CN102128227B CN2011100836202A CN201110083620A CN102128227B CN 102128227 B CN102128227 B CN 102128227B CN 2011100836202 A CN2011100836202 A CN 2011100836202A CN 201110083620 A CN201110083620 A CN 201110083620A CN 102128227 B CN102128227 B CN 102128227B
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- permanent magnet
- braking
- electromagnet
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Abstract
The invention provides an electromagnet and friction composite disc type brake and a brake method. Both a steering knuckle and a brake caliper bracket are fixedly connected with an electromagnet brake fixing device, and the electromagnet brake fixing device is fixedly connected with magnet cores. The magnet cores are symmetrically arranged on the two sides of a brake disc, and coil windings are wound on the magnet cores. Permanent magnet bodies and the magnet cores are oppositely arranged, and air gaps are arranged between the permanent magnet bodies and the magnet cores. When an automobile brakes, electromagnet fields distributed on the axes of the coil windings are generated after the coil windings are electrified, and the directions of the electromagnet fields generated by the coil windings on the two sides of the brake disc are consistent. The permanent magnet bodies rotate 90 DEG, the directions of the permanent magnet fields of the permanent magnet bodies are consistent with the directions of the electromagnet fields of the coil windings, and the brake disc is braked by the superposition of the electromagnet fields and the permanent magnet fields. The size of the brake force is adjusted by adjusting the different rotating angles of the permanent magnet bodies or the size of electrifying current in the coil windings. The action time of the brake is shortened, the brake efficiency is enhanced, the use strength of the friction brake is reduced, the abrasion of brake pads is alleviated, and the brake force is easy to control.
Description
Technical field
The present invention relates to a kind of automotive brake, automobile is realized braking or deceleration.
Background technique
At present; Automotive brake commonly used is many to be main with disk type braker; Disk type braker is to promote the piston motion in the braking clamp body through hydraulic oil, and piston is pressed to brake disc to brake slipper, reduces the speed of vehicle through the frictional force between brake disc and the brake slipper.In the galloping process; During emergency braking, the action time of break and braking force are very big to the influence of braking ability, and the run duration of the hydraulic circuit action time of disk type braker and brake slipper all can make Braking efficiency reduce; And can produce much noise in the braking process; The brake disc temperature rises, and influences brake-fade property, thereby influences Braking efficiency.Especially in lasting braking processs such as long descending, or under frequent braking situation, brake temperature sharply rises, and the brake slipper friction is violent, causes serious wear.
Summary of the invention
In view of the problem that exists in the existing technology; The invention provides a kind of compound disk type braker that can reduce friction catch intensity, alleviate brake pads wear and can when braking at a high speed, also form by electromagnetic braking and friction catch very stably; The present invention provides the braking method of this compound disk type braker simultaneously; The braking action time be can shorten, braking ability and travel safety effectively improved.
Electromagnetism of the present invention with the technological scheme that the compound disk type braker of friction adopts is: other knuckle and the brake-caliper support of being provided with of brake disc; Knuckle all is fixedly connected the electromagnetic braking fixing device with brake-caliper support; The affixed magnetic core of electromagnetic braking fixing device; Magnetic core is symmetrically arranged on brake disc both sides and the magnetic core and is wound with coil winding, permanent magnet be oppositely arranged with magnetic core and air clearance, the affixed rotary drive mechanism of permanent magnet arranged between the two.
Electromagnetism of the present invention is to have following steps with the braking method of the compound disk type braker of friction: when 1) automobile normal running is not braked; The coil winding no electric circuit; Do not have the magnetic line of force to pass through in the magnetic core, rotary drive mechanism is not worked, and permanent magnet electromagnetic field direction and magnetic core 9 are 90 °; 2) during automobile brake, the coil winding energising produces the electromagnetic field that is distributed in its axis, and the electromagnetic field direction that the coil winding of brake disc both sides produces is consistent; Rotary drive mechanism gets electric drive permanent magnet half-twist, and the permanent magnetic field direction of permanent magnet is consistent with coil winding electromagnetism magnetic direction, and the stack of electromagnetism magnetic field and permanent magnetic field is braked brake disc; 3) when the speed of a motor vehicle is low, adopt friction catch; When the speed of a motor vehicle was high, electromagnetic braking and friction catch were braked jointly; When the normal speed of a motor vehicle need be braked, first electromagnetic braking reduces the speed of a motor vehicle, again friction catch; 4) in the braking process, drive the different angle of permanent magnet rotation or big or small through electrical current size adjustment braking force in the coil winding through rotary drive mechanism.
The present invention compares with common side friction brake; Its beneficial effect is: 1, the present invention has increased by a cover magnetic braking device; Adopt electromagnetism and permanent magnetism braking, the magnet case of motion produces electric convolution during the motion cutting magnetic line in the Resultant field of electromagnetic field and permanent magnetic field, thereby formation resistance distance plays braking action; Break reduces action time greatly, strengthens Braking efficiency.2, in the braking process, electromagnetic braking provides most of braking force, and friction catch only provides fraction braking force, the working strength of the break of can reducing friction, the wearing and tearing that alleviate brake slipper, the life-span of prolongation friction brake.3, electromagnetic braking is contactless braking, and brake percentage is more steady, can effectively reduce generating noise.4, lower long slope or can effective control brake power size when frequently braking as long as regulate the magnetic force size, the control of electromagnetic force size is simple relatively, the braking force size control easily of magnetic brake,
Better than common friction brake.
Description of drawings
Fig. 1 is the present invention's general assembly schematic representation in use;
Fig. 2 is automobile A-A amplification view among Fig. 1 in non-braking process;
Fig. 3 is automobile A-A amplification view among Fig. 1 in braking process;
Fig. 4 is a B-B amplification view among Fig. 1;
Fig. 5 is a C-C amplification view among Fig. 3;
Fig. 6 is the plan view of electromagnetic braking fixing device 8 among Fig. 1;
Fig. 7 is the left view of Fig. 6;
Among the figure: the 1-brake disc; The 2-knuckle; The 3-bolt; 4-braking clamp body guide finger; The 5-braking clamp body; The 6-bolt; The 7-brake-caliper support; 8-magnetic brake fixing device; The 9-magnetic core; The 10-screw; The 11-motor; The 12-transmission shaft; The 13-permanent magnet; The 14-coil winding.
Embodiment
Referring to Fig. 1,6,7; The present invention is at additional another braking clamp body 5 of braking clamp body one end of traditional disk type braker; Braking clamp body 5 links to each other with brake-caliper support 7 through brake calipers guide finger 4, and it is other that brake-caliper support 7 is positioned at brake disc 1, the brake disc 1 other knuckle 2 that also is provided with; On brake-caliper support 7, open a through hole, brake-caliper support 7 is connected on the knuckle 2 through bolt 3.The concrete shape and size of electromagnetic braking fixing device 8 confirm that according to the size of the magnetic brake that is designed one section of electromagnetic braking fixing device 8 also is fixedly connected knuckle 2 through bolt 3, and another section is fixedly connected brake-caliper support 7 through another bolt 6.
Referring to Fig. 1-5, electromagnetic braking fixing device 8 connects magnetic core 9 through screw 10, is wound with coil winding 14 on the magnetic core 9.Magnetic core 9 is symmetrically arranged in brake disc 1 both sides, and the rotation card of brake disc 1 is arranged in magnetic core 9.The position of permanent magnet 13 and magnetic core 9 are oppositely arranged, and leave the air clearance between permanent magnet 13 and the magnetic core 9, and permanent magnet 13 all is circular-arc with the apparent surface of magnetic core 9.Permanent magnet 13 is fixedly connected rotary drive mechanism, drives permanent magnet 13 rotations by rotary drive mechanism.
Rotary drive mechanism can be a motor 11, and permanent magnet 13 rotation modes also can adopt hydraulic pressure directly to drive except driving with motor 11, or adopts hydraulic pressure to drive tooth bar, the rotation of rack drives gear and 13 rotations of drive permanent magnet.When adopting motor 11, electromagnetic braking fixing device 8 is fixedly connected motor 11 as motor 11 fixed supports, and the transmission shaft 12 of motor 11 is fixedly connected permanent magnet 13, and motor 11 drives permanent magnet 13 rotations through transmission shaft 12.
Coil winding 14 of the present invention can act on also generation effect respectively simultaneously with permanent magnet 13.Can only make up this structure with coil winding 14 and magnetic core 9, also can be only with permanent magnet 13 and this structure of magnetic core 9 combinations.
When automobile normal running, like Fig. 2, friction catch is in separated state, coil winding 14 no electric circuits, and no current, do not have the magnetic line of force to pass through in the magnetic core 9 this moment, and rotary drive mechanism is not worked, and permanent magnet 13 pole orientation and magnetic core 9 are 90 °.
When automobile need be braked, the driver stepped on brake petal, and electro-magnetic braking device receives the input signal at brake petal place; The electric current of demand working coil winding then 14 like Fig. 3, can produce the electromagnetic field that is distributed in its axis after coil winding 14 energisings; Be positioned at the electromagnetic field direction unanimity of coil winding 14 generations of brake disc 1 both sides, rotary drive mechanism obtains electric current simultaneously and starts, and drives permanent magnet 13 half-twists; Make that the pole orientation of permanent magnet 13 is consistent with coil winding 14 energising back electromagnetism magnetic directions; Thereby electromagnetism magnetic field and permanent magnetic field stack make brake disc 1 in formed stack magnetic field, rotate cutting magnetic line; In brake disc 1, can form eddy current; Can make magnetic intensity bigger through the two magnetic field superposition, thereby can produce a bigger braking moment, reach deceleration and braking effect automobile to brake disc 1.Meanwhile, friction catch promotes piston through hydraulic circuit and presses to brake disc 1 to brake slipper and brake; At this moment, friction catch only provides part braking force, and most of braking force is born by electromagnetic braking.When the speed of a motor vehicle is low, adopt friction catch to come abrupt deceleration vehicle, magnetic brake and friction catch are braked jointly when the speed of a motor vehicle is too high, and automobile is stopped very soon.When automobile goes with the normal speed of a motor vehicle, when need not emergency braking, electromagnetic braking effect earlier reduces the speed of a motor vehicle, and brake drag effect is come abrupt deceleration vehicle then.In the braking process; Cross ambassador's wheel and the locking situation occurs in order to prevent braking force; Can drive permanent magnet 13 through rotary drive mechanism rotates to an angle and regulates the braking force size; Also can regulate the braking force size through the electrical current size in the control coil winding 14, friction fit braking force makes braking ability reach the optimum state jointly.
Claims (1)
1. the braking method of electromagnetism and the compound disk type braker of friction; Electromagnetism and other knuckle (2) and the brake-caliper support (7) of being provided with of the brake disc (1) of the compound disk type braker of friction; Knuckle (2) all is fixedly connected electromagnetic braking fixing device (8) with brake-caliper support (7), and the affixed magnetic core of electromagnetic braking fixing device (8) (9), magnetic core (9) are symmetrically arranged in brake disc (1) both sides; And be wound with coil winding (14) on the magnetic core (9); Permanent magnet (13) is oppositely arranged with magnetic core (9) and the air clearance is arranged between the two, and the affixed rotary drive mechanism of permanent magnet (13) is characterized in that having following steps:
When 1) automobile normal running is not braked, coil winding (14) no electric circuit, magnetic core does not have the magnetic line of force to pass through in (9), and rotary drive mechanism is not worked, and permanent magnet (13) pole orientation and magnetic core (9) are 90 °;
2) during automobile brake, coil winding (14) energising produces the electromagnetic field that is distributed in its axis, and the electromagnetic field direction that the coil winding (14) of brake disc (1) both sides produces is consistent; Rotary drive mechanism gets electric drive permanent magnet (13) half-twist, and the permanent magnetic field direction of permanent magnet (13) is consistent with coil winding (14) electromagnetism magnetic direction, and the stack of electromagnetism magnetic field and permanent magnetic field is braked brake disc (1);
3) when the speed of a motor vehicle is low, adopt friction catch; When the speed of a motor vehicle was high, electromagnetic braking and friction catch were braked jointly; When the normal speed of a motor vehicle need be braked, first electromagnetic braking reduced the speed of a motor vehicle, again friction catch;
4) in the braking process, drive the different angle of permanent magnet (13) rotation or big or small through electrical current size adjustment braking force in the coil winding (14) through rotary drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100836202A CN102128227B (en) | 2011-04-02 | 2011-04-02 | Brake method of electromagnet and friction composite disc type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100836202A CN102128227B (en) | 2011-04-02 | 2011-04-02 | Brake method of electromagnet and friction composite disc type brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102128227A CN102128227A (en) | 2011-07-20 |
| CN102128227B true CN102128227B (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100836202A Expired - Fee Related CN102128227B (en) | 2011-04-02 | 2011-04-02 | Brake method of electromagnet and friction composite disc type brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN102128227B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287463B (en) * | 2011-08-04 | 2012-11-21 | 中国农业大学 | Automobile electromagnetic auxiliary braking device |
| CN102691737B (en) * | 2012-05-02 | 2014-05-28 | 江苏大学 | Friction and electromagnetism integrated brake with double disk structure |
| CN102678789A (en) * | 2012-05-25 | 2012-09-19 | 浙江大学 | Eddy current and friction brake device for vehicles |
| CN102700532B (en) * | 2012-06-05 | 2015-04-22 | 江苏大学 | Braking device adopting magnet brake to realize vehicle locking prevention function and control method |
| CN103303150B (en) * | 2013-06-17 | 2015-11-18 | 江苏大学 | A kind of control method of hanging vehicle wheel limit retarder |
| CN103629272B (en) * | 2013-12-02 | 2016-01-20 | 江苏大学 | A kind of vehicle electric magnetic brake and friction catch integrated system |
| CN103640487B (en) * | 2013-12-09 | 2015-08-26 | 江苏大学 | A kind of electromagnetism-hydraulic pressure composite brakig device and method of work with spontaneous electrical function |
| CN104632954B (en) * | 2015-02-10 | 2017-06-13 | 重庆交通大学 | External disk internal magnetization disk brake |
| CN105041923A (en) * | 2015-07-07 | 2015-11-11 | 刘存香 | Motor braking and friction braking integrated system and control method thereof |
| CN105545987B (en) * | 2016-02-24 | 2018-01-30 | 中国矿业大学 | It is a kind of to be rubbed composite braking device based on the rub automobile magnetic of coupling effect of magnetic |
| CN105840694B (en) * | 2016-06-21 | 2018-08-10 | 重庆交通大学 | Electromagnetism and rub compound disk brake and its braking method |
| CN106246765A (en) * | 2016-10-11 | 2016-12-21 | 江苏大学 | A kind of double plate electromagnetic brake and the braking method when different operating mode thereof |
| CN107299945B (en) * | 2017-07-20 | 2023-06-27 | 深圳市同川科技有限公司 | Brake device |
| CN107917157B (en) * | 2017-11-13 | 2019-08-20 | 孟川 | A kind of brake apparatus and method of automobile |
| EP3540258B1 (en) | 2018-03-12 | 2023-04-26 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Pull rod device arrangement of a brake caliper and brake caliper |
| 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 |
| CN109910841B (en) * | 2019-03-15 | 2021-04-27 | 西京学院 | Vehicle disc brake braking energy recycling device |
| CN112160870A (en) * | 2020-09-23 | 2021-01-01 | 三一重能有限公司 | Yaw system and wind generating set |
| CN113635878B (en) * | 2021-08-16 | 2022-11-15 | 盐城工学院 | Composite braking system of electric automobile |
| CN113685461A (en) * | 2021-09-08 | 2021-11-23 | 安徽理工大学 | Controllable permanent magnet normally closed disc brake |
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| JPH0614523A (en) * | 1992-06-23 | 1994-01-21 | Sumitomo Special Metals Co Ltd | Eddy-current brake |
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2011
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