CN102235449B - Magnetic fluid oil pressure disc brake - Google Patents
Magnetic fluid oil pressure disc brake Download PDFInfo
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- CN102235449B CN102235449B CN2011100942930A CN201110094293A CN102235449B CN 102235449 B CN102235449 B CN 102235449B CN 2011100942930 A CN2011100942930 A CN 2011100942930A CN 201110094293 A CN201110094293 A CN 201110094293A CN 102235449 B CN102235449 B CN 102235449B
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- fluid cylinder
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Abstract
The invention discloses a magnetic fluid oil pressure disc brake, which consists of a magnetic fluid device, an oil pressure device, a motor vehicle brake disc and a controller, wherein the magnetic fluid device consists of a magnetic fluid cylinder, a magnetic fluid, an electromagnetic coil and a brake piston; the brake opening of the magnetic fluid cylinder is in movable fit sealing connection with the motor vehicle brake disc; the magnetic fluid cylinder is fixedly connected with a vehicle frame; and the controller is provided with control wires which are connected with the electromagnetic coil and the oil pressure device. In the magnetic fluid oil pressure disc brake, the density of the magnetic fluid is controlled by the controller, so that the frictional resistance between the magnetic fluid and the motor vehicle brake disc is increased; the magnetic fluid is compressed by the oil pressure device, so that the frictional resistance between the magnetic fluid and the motor vehicle brake disc is further improved; and the aim of braking by using the frictional resistance is fulfilled, locking faults during braking are reduced.
Description
Technical field
The present invention relates to a kind of braking device, particularly a kind of magnetic fluid hydraulic disc brake.
Background technique
Existing brake of motor-driven vehicle device; Brake by Motor Vehicle brake disc and brake shoe surface friction drag during brake; Therefore the inertia of brake is bigger, and brake noise and impact force are also bigger, makes the loosening of Motor Vehicle link easily; Quality to Motor Vehicle has adverse influence, also is unfavorable for the safety of braking simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, a kind of magnetic fluid hydraulic disc brake is provided, utilize the surface friction drag brake of oil gear and magnetic fluid and Motor Vehicle brake disc, reduce the noise and the inertia impulsive force of brake, prevent the brake of motor-driven vehicle locking.
The technological scheme that the present invention adopted is: the magnetic fluid hydraulic disc brake is made up of magnetohydrodynamic plant, oil gear, Motor Vehicle brake disc and controller; Magnetohydrodynamic plant is made up of magnetic fluid cylinder, magnetic fluid, electromagnetic coil and Braking piston; Braking piston is actively tied in the brake die cavity of magnetic fluid cylinder; Magnet fluid sealing is in the brake die cavity of magnetic fluid cylinder, and magnetic fluid contacts with the Motor Vehicle brake disc, and electromagnetic coil is fixed on the magnetic fluid cylinder; Oil gear is made up of oil cylinder and hydraulic pressure installation, and oil cylinder is connected with hydraulic pressure installation through hydraulic tube, and oil cylinder is fixedly connected with the magnetic fluid cylinder, and the piston rod of oil cylinder is connected with Braking piston; The brake mouth and the Motor Vehicle brake disc of magnetic fluid cylinder are tightly connected movingly, and the magnetic fluid cylinder is fixedly connected with vehicle frame; Controller is provided with guide line and is connected with electromagnetic coil and oil gear.
During brake, controller is exported power brake source to electromagnetic coil, and electromagnetic coil produces magnetic field is magnetized the magnetic fluid in the magnetic fluid cylinder, and the density of magnetic fluid is constantly increased, and improves constantly the shear resistance of magnetic fluid; The piston rod of the oil gear of controller control simultaneously oil cylinder promotes Braking piston, constantly compresses the magnetic fluid of magnetic fluid cylinder, and the frictional force of magnetic fluid and magnetic fluid cylinder is constantly increased, and the frictional force of magnetic fluid and Motor Vehicle brake disc is constantly increased; Utilize the surface friction drag that constantly increases density and continuous compressed magnetic fluid and Motor Vehicle brake disc that Motor Vehicle is checked; When brake was eliminated, controller stopped to electromagnetic coil output power brake source, and the magnetic field of electromagnetic coil disappears, and the density of magnetic fluid reduces; Simultaneously, the piston rod of controller control oil gear oil cylinder is return, and the frictional force of the frictional force of magnetic fluid and magnetic fluid cylinder and magnetic fluid and Motor Vehicle brake disc constantly is reduced to elimination.
The invention has the beneficial effects as follows: the magnetic fluid hydraulic disc brake utilizes the density of controller control magnetic fluid; Increase the surface friction drag of magnetic fluid and Motor Vehicle brake disc; Utilize oil gear compression magnetic fluid, the surface friction drag further improving magnetic fluid and Motor Vehicle brake disc reaches the purpose of utilizing the surface friction drag brake; Reduce the noise and the impact force of brake, reduced the generation of brake locking fault.
Description of drawings
Fig. 1 is the structural representation of magnetic fluid hydraulic disc brake.
Embodiment
Below in conjunction with accompanying drawing the present invention is further explained:
The structural representation of magnetic fluid hydraulic disc brake shown in Figure 1; The magnetic fluid hydraulic disc brake is made up of magnetohydrodynamic plant 1, oil gear 2, Motor Vehicle brake disc 3 and controller 4; Magnetohydrodynamic plant 1 is made up of magnetic fluid cylinder 5, magnetic fluid 6, electromagnetic coil 7 and Braking piston 8, and Braking piston 8 is actively tied in the brake die cavity 9 of magnetic fluid cylinder 5, and magnetic fluid 6 is sealed in the brake die cavity 9 of magnetic fluid cylinder 5; Magnetic fluid 6 contacts with Motor Vehicle brake disc 3, and electromagnetic coil 7 is fixed on the magnetic fluid cylinder 5; Oil gear 2 is made up of oil cylinder 10 and hydraulic pressure installation 11, and oil cylinder 10 is connected with hydraulic pressure installation 11 through hydraulic tube 12, and oil cylinder 10 is fixedly connected with magnetic fluid cylinder 5, and the piston rod 13 of oil cylinder 5 is connected with Braking piston 8; The brake mouth 14 and the Motor Vehicle brake disc 3 of magnetic fluid cylinder 5 are tightly connected movingly, and magnetic fluid cylinder 5 is fixedly connected with vehicle frame 15; Controller 4 is provided with guide line and is connected with electromagnetic coil 7 and oil gear 2.Magnetic fluid cylinder 5 fuses with oil cylinder 10; Be provided with sealing plate 17 between the brake die cavity 9 of magnetic fluid cylinder 5 and the hydraulic pressure die cavity 16 of oil cylinder 10; The piston rod 13 of oil cylinder 5 passes the closed hole 18 of sealing plate 17; Piston rod 13 is tightly connected with closed hole 18 movingly, and piston rod 13 is fixedly connected with the Braking piston 8 of magnetic fluid cylinder 5.The brake die cavity 9 of magnetic fluid cylinder 5 is the die cavity of annular, and Braking piston 8 is the piston of annular; To be fit to the structure of vehicle wheels.
In order to reduce the interference of ferromagnetic material to magnetic field, magnetic fluid cylinder 5 is provided with brake groove 19 by the nonferromagnetic material manufacturing in the brake die cavity 9 of magnetic fluid cylinder 5, and the braking surface of Motor Vehicle brake disc 3 is provided with detent recess 20, is used to increase the surface friction drag of brake.
For the Motor Vehicle brake disc is applied uniform brake weight; Magnetic fluid cylinder 5 is made up of with outer magnetic fluid cylinder 22 interior magnetic fluid cylinder 21; Interior magnetic fluid cylinder 21 is fixedly connected with outer magnetic fluid cylinder 22, and the interior brake mouth 23 of interior magnetic fluid cylinder 21 is tightly connected with the inside brake sealing surface 24 of Motor Vehicle brake disc 3 movingly; The outer brake mouth 25 of outer magnetic fluid cylinder 22 is tightly connected with the outer braking sealing face 26 of Motor Vehicle brake disc 3 movingly; Oil cylinder 10 is made up of inner cylinder 27 and outer oil cylinder 28, and inner cylinder 27 fuses with interior magnetic fluid cylinder 21, and inner cylinder 27 is positioned at the left side of magnetic fluid cylinder 21; Outer oil cylinder 28 fuses with outer magnetic fluid cylinder 22, and outer oil cylinder 28 is positioned at the right of outer magnetic fluid cylinder 22; Inner cylinder 27 is provided with spigot 29 and is connected with hydraulic pressure installation 11, and the socket 30 of outer oil cylinder 28 is connected with hydraulic pressure installation 11; Electromagnetic coil 7 is made up of with outer electromagnetic coil 32 interior electromagnetic coil 31, and on the magnetic fluid cylinder 21, outer electromagnetic coil 32 was provided with on the outer magnetic fluid cylinder 22 in interior electromagnetic coil 31 was located at.
In order to prevent that magnetic fluid 6 from leaking; The interior brake mouth 23 of interior magnetic fluid cylinder 21 is provided with first Sealing 33 with the surface of contact of the inside brake sealing surface 24 of Motor Vehicle brake disc 3, and the outer brake mouth 25 of outer magnetic fluid cylinder 22 is provided with second Sealing 34 with the surface of contact of the outer braking sealing face 26 of Motor Vehicle brake disc 3.
In order to guarantee that inner cylinder 27 synchronouss working with outer oil cylinder 28, the spigot 29 of inner cylinder 27 is made up of first joint 35 and second joint 36, and the socket 30 of outer oil cylinder 28 is made up of the 3rd joint 37 and the 4th joint 38; First joint 35 and the 3rd joint 37 are connected with hydraulic pressure installation 11 through first pipeline 39 and first threeway 40; Second joint 36 and the 4th joint 38 are connected with hydraulic pressure installation 11 through second pipeline 41 and second threeway 42.
In order to reduce brake locking, piston rod 13 can normally reset when guaranteeing not brake, and is provided with pressure spring 43 between piston rod 13 and the sealing plate 17.
In order to distribute the heat of magnetic fluid 6 and 3 frictions of Motor Vehicle brake disc, magnetic fluid cylinder 5 is provided with radiating fin 44.In order to increase the wear-resisting property and the resistance to heat of magnetic fluid (6), be further designed to: magnetic fluid (6) contains high-abrasive material and heat-resistant material.
Claims (10)
1. magnetic fluid hydraulic disc brake; It is characterized in that: described magnetic fluid hydraulic disc brake is made up of magnetohydrodynamic plant (1), oil gear (2), Motor Vehicle brake disc (3) and controller (4); Magnetohydrodynamic plant (1) is made up of magnetic fluid cylinder (5), magnetic fluid (6), electromagnetic coil (7) and Braking piston (8); Braking piston (8) is actively tied in the brake die cavity (9) of magnetic fluid cylinder (5); Magnetic fluid (6) is sealed in the brake die cavity (9) of magnetic fluid cylinder (5), and magnetic fluid (6) contacts with Motor Vehicle brake disc (3), and electromagnetic coil (7) is fixed on the magnetic fluid cylinder (5); Oil gear (2) is made up of oil cylinder (10) and hydraulic pressure installation (11), and oil cylinder (10) is connected with hydraulic pressure installation (11) through hydraulic tube (12), and oil cylinder (10) is fixedly connected with magnetic fluid cylinder (5), and the piston rod (13) of oil cylinder (5) is connected with Braking piston (8); The brake mouth (14) of magnetic fluid cylinder (5) is tightly connected with Motor Vehicle brake disc (3) movingly, and magnetic fluid cylinder (5) is fixedly connected with vehicle frame (15); Controller (4) is provided with guide line and is connected with electromagnetic coil (7) and oil gear (2); When being used to brake, utilize the piston rod of controller control oil gear oil cylinder to promote Braking piston, constantly compress the magnetic fluid of magnetic fluid cylinder, the frictional force of magnetic fluid and magnetic fluid cylinder is constantly increased, the frictional force of magnetic fluid and Motor Vehicle brake disc is constantly increased.
2. magnetic fluid hydraulic disc brake according to claim 1; It is characterized in that: described magnetic fluid cylinder (5) fuses with oil cylinder (10); Be provided with sealing plate (17) between the brake die cavity (9) of magnetic fluid cylinder (5) and the hydraulic pressure die cavity (16) of oil cylinder (10); The piston rod (13) of oil cylinder (5) passes the closed hole (18) of sealing plate (17), and piston rod (13) is tightly connected with closed hole (18) movingly, and piston rod (13) is fixedly connected with the Braking piston (8) of magnetic fluid cylinder (5).
3. magnetic fluid hydraulic disc brake according to claim 1; It is characterized in that: described magnetic fluid cylinder (5) is by the nonferromagnetic material manufacturing; Be provided with brake groove (19) in the brake die cavity (9) of magnetic fluid cylinder (5); The braking surface of Motor Vehicle brake disc (3) is provided with detent recess (20), is used to increase the surface friction drag of brake.
4. magnetic fluid hydraulic disc brake according to claim 1 is characterized in that: the brake die cavity (9) of described magnetic fluid cylinder (5) is the die cavity of annular, and Braking piston (8) is the piston of annular.
5. magnetic fluid hydraulic disc brake according to claim 1; It is characterized in that: described magnetic fluid cylinder (5) is made up of interior magnetic fluid cylinder (21) and outer magnetic fluid cylinder (22); Interior magnetic fluid cylinder (21) is fixedly connected with outer magnetic fluid cylinder (22), and the interior brake mouthful (23) of interior magnetic fluid cylinder (21) is tightly connected with the inside brake sealing surface (24) of Motor Vehicle brake disc (3) movingly; The outer brake mouthful (25) of outer magnetic fluid cylinder (22) is tightly connected with the outer braking sealing face (26) of Motor Vehicle brake disc (3) movingly; Oil cylinder (10) is made up of inner cylinder (27) and outer oil cylinder (28), and inner cylinder (27) fuses with interior magnetic fluid cylinder (21), and inner cylinder (27) is positioned at the left side of magnetic fluid cylinder (21); Outer oil cylinder (28) fuses with outer magnetic fluid cylinder (22), and outer oil cylinder (28) is positioned at the right of outer magnetic fluid cylinder (22); Inner cylinder (27) is provided with spigot (29) and is connected with hydraulic pressure installation (11), and the socket (30) of outer oil cylinder (28) is connected with hydraulic pressure installation (11); Electromagnetic coil (7) is made up of interior electromagnetic coil (31) and outer electromagnetic coil (32), and on the magnetic fluid cylinder (21), outer electromagnetic coil (32) was provided with on the outer magnetic fluid cylinder in interior electromagnetic coil (31) was located at.
6. magnetic fluid hydraulic disc brake according to claim 5; It is characterized in that: the interior brake mouthful (23) of magnetic fluid cylinder (21) is provided with first Sealing (33) with the surface of contact of the inside brake sealing surface (24) of Motor Vehicle brake disc (3) in described, and the outer brake mouthful (25) of outer magnetic fluid cylinder (22) is provided with second Sealing (34) with the surface of contact of the outer braking sealing face (26) of Motor Vehicle brake disc (3).
7. magnetic fluid hydraulic disc brake according to claim 5; It is characterized in that: the spigot (29) of described inner cylinder (27) is made up of first joint (35) and second joint (36), and the socket (30) of outer oil cylinder (28) is made up of the 3rd joint (37) and the 4th joint (38); First joint (35) and the 3rd joint (37) are connected with hydraulic pressure installation (11) through first pipeline (39) and first threeway (40); Second joint (36) and the 4th joint (38) are connected with hydraulic pressure installation (11) through second pipeline (41) and second threeway (42).
8. magnetic fluid hydraulic disc brake according to claim 2 is characterized in that: be provided with pressure spring (43) between described piston rod (13) and the sealing plate (17).
9. magnetic fluid hydraulic disc brake according to claim 1 is characterized in that: described magnetic fluid cylinder (5) is provided with radiating fin (44).
10. magnetic fluid hydraulic disc brake according to claim 1 is characterized in that: described magnetic fluid (6) contains high-abrasive material and heat-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100942930A CN102235449B (en) | 2011-04-09 | 2011-04-09 | Magnetic fluid oil pressure disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100942930A CN102235449B (en) | 2011-04-09 | 2011-04-09 | Magnetic fluid oil pressure disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235449A CN102235449A (en) | 2011-11-09 |
| CN102235449B true CN102235449B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100942930A Active CN102235449B (en) | 2011-04-09 | 2011-04-09 | Magnetic fluid oil pressure disc brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN102235449B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089862B (en) * | 2013-01-03 | 2015-08-12 | 华北水利水电大学 | Magnetic fluid float force disk brake |
| CN105020302B (en) * | 2015-07-28 | 2017-07-14 | 安徽工程大学 | A kind of brake |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19906228A1 (en) * | 1999-02-15 | 2000-08-31 | Knorr Bremse Systeme | Electromechanical application device for vehicle brakes and control methods |
| JP2006258193A (en) * | 2005-03-17 | 2006-09-28 | Toyota Motor Corp | Friction brake device for vehicle |
| CN201013802Y (en) * | 2007-01-16 | 2008-01-30 | 重庆大学 | Hot pipe type magnetic current changing brake device |
-
2011
- 2011-04-09 CN CN2011100942930A patent/CN102235449B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19906228A1 (en) * | 1999-02-15 | 2000-08-31 | Knorr Bremse Systeme | Electromechanical application device for vehicle brakes and control methods |
| JP2006258193A (en) * | 2005-03-17 | 2006-09-28 | Toyota Motor Corp | Friction brake device for vehicle |
| CN201013802Y (en) * | 2007-01-16 | 2008-01-30 | 重庆大学 | Hot pipe type magnetic current changing brake device |
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| Publication number | Publication date |
|---|---|
| CN102235449A (en) | 2011-11-09 |
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Owner name: NANTONG CITY CHONGCHUAN TECHNOLOGY VENTURE SERVICE Free format text: FORMER OWNER: LIN ZHIYONG Effective date: 20141231 |
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Free format text: CORRECT: ADDRESS; FROM: 529080 JIANGMEN, GUANGDONG PROVINCE TO: 226000 NANTONG, JIANGSU PROVINCE |
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Effective date of registration: 20141231 Address after: 226000 Jiangsu Province, Nantong City Chongchuan District Chongchuan Road No. 1 Patentee after: Nantong city science and Technology Innovation Service Center Co. Ltd. Address before: 529080, No. 1, Lane 7, garden village, off street office, Jiangmen, Guangdong Province, 605 Patentee before: Lin Zhiyong |