CN202851743U - Magnetofluid drum brake - Google Patents
Magnetofluid drum brake Download PDFInfo
- Publication number
- CN202851743U CN202851743U CN 201220397191 CN201220397191U CN202851743U CN 202851743 U CN202851743 U CN 202851743U CN 201220397191 CN201220397191 CN 201220397191 CN 201220397191 U CN201220397191 U CN 201220397191U CN 202851743 U CN202851743 U CN 202851743U
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- Prior art keywords
- drum
- magnetic fluid
- brake
- basin
- stopped
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- Expired - Fee Related
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Abstract
Provided is a magnetofluid drum brake. The magnetofluid drum brake comprises a rotary plate, a drum brake, and a magnetofluid device consisting of a magnetofluid, an electromagnetic coil, and a controller. The rotary plate is fixedly connected with an axletree. The drum brake is provided with a sealed braking cavity. The rotary plate is matched with the braking cavity. The magnetofluid is sealed inside the braking cavity. The electromagnetic coil is arranged on the drum brake fixedly connecte with a car-frame. The resistance of the magnetofluid to the axletree is controlled by using the controller and the electromagnetic coil managing the state of the magnetofluid and yield stress. The brake is achieved by using the resistance of the magnetofluid to hinder the moving of the axletree. Hence the noise and impact force in braking are relieved, and the faults due to anti-lock breaks system are reduced.
Description
Technical field
The utility model relates to a kind of braking device, and particularly a kind of magnetic fluid drum is stopped.
Background technique
Existing braking device for motor vehicle, brake by brake disc for automotive vehicle and brake block surface friction drag during brake, brake is rigid brake, brake noise and impact force are also larger, brake block weares and teares easily, easily maker motor-car link is loosening, and the quality of Motor Vehicle is had adverse influence, also is unfavorable for the safety of braking simultaneously.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of magnetic fluid drum that provides Motor Vehicle or other equipment to use is stopped, utilize controller and electromagnetic coil to produce the form that magnetic fluid is controlled in magnetic field, the resistance that utilizes the magnetic fluid change of form to produce is implemented brake, owing to adopt soft brake, reduce noise and the inertial impact force of brake, prevent the brake of motor-driven vehicle locking.
The technological scheme that the utility model adopts is: a kind of magnetic fluid drum is stopped and is included rolling disc, brake drum and magnetohydrodynamic plant, and magnetohydrodynamic plant includes magnetic fluid, electromagnetic coil and controller; Rolling disc is fixedly connected with wheel axle, brake drum is established Packed braking die cavity, rolling disc is actively tied in the braking die cavity, magnet fluid sealing is in the braking die cavity, electromagnetic coil is installed on the brake drum, brake drum is fixedly connected with vehicle frame, and controller is provided with guide line and is connected with electromagnetic coil, controller with brake switch or brake control circuit be connected; A kind of magnetic fluid drum is stopped and is utilized controller and electromagnetic coil to produce magnetic field in the braking cavity positions, utilize the variation of controller controlling magnetic field, utilize the interior magnetic fluid form of variation control braking die cavity in magnetic field and the variation of yield stress, utilize the yield stress of magnetic fluid to change to change the resistance that rolling disc is subject to, the resistance that utilizes rolling disc to be subject to magnetic fluid brakes, reach soft brake reduce the brake impact force purpose.
When a kind of magnetic fluid drum was stopped for the braking of other power equipments, wheel axle was the rotating shaft of other equipment, and vehicle frame is the fixing frame of equipment, and controller is connected with brake switch or braking circuit.
The working principle that a kind of magnetic fluid drum is stopped is: a kind of magnetic fluid drum is stopped and is utilized controller and electromagnetic coil to produce magnetic field in the braking cavity positions, utilize the variation of controller controlling magnetic field, utilize the variation of the variation control magnetic fluid form in magnetic field, utilize the variation of the interior magnetic fluid yield stress of variation control braking die cavity in magnetic field, utilize the variation of magnetic fluid yield stress to change the resistance that rolling disc is subject to, the resistance that utilizes turn disc to be subject to brakes, reach soft brake reduce the brake impact force purpose.
The beneficial effects of the utility model are: a kind of magnetic fluid drum is stopped and is utilized form and the yield stress of controller and solenoid controlled magnetic fluid, the wheel axle of controller motor-car is subject to the resistance of magnetic fluid, utilize the resistance obstruction wheel axle of magnetic fluid to rotate to implement brake, reduce noise and the impact force of brake, reduced the generation of brake locking fault; Simultaneously, brake does not have the brake block wearing and tearing; A kind of magnetic fluid drum is stopped also can be used for the brake of other machinery.
Description of drawings
Fig. 1 is the structural representation that a kind of magnetic fluid drum is stopped.
Embodiment
Below in conjunction with accompanying drawing the utility model is further detailed:
The structural representation that a kind of magnetic fluid drum shown in Figure 1 is stopped, a kind of magnetic fluid drum are stopped and are included rolling disc 1, brake drum 2 and magnetohydrodynamic plant 3, and magnetohydrodynamic plant 3 includes magnetic fluid 4, electromagnetic coil 5 and controller 6; Rolling disc 1 is fixedly connected with wheel axle 7, wheel axle 7 is connected with the wheel hub 8 of Motor Vehicle, wheel hub 8 is connected and installed with tire 23, brake drum 2 is established Packed braking die cavity 9, rolling disc 1 is actively tied in the braking die cavity 9, magnetic fluid 4 is sealed in the braking die cavity 9, electromagnetic coil 5 is installed on the brake drum 2, brake drum 2 is fixedly connected with vehicle frame 10, wheel axle 7 is installed on the bearing support 24 of vehicle frame 10, controller 6 is provided with guide line and is connected with electromagnetic coil 5, controller 6 with brake switch or brake control circuit be connected.When a kind of magnetic fluid drum was stopped for the braking of other power equipments, wheel axle 7 was the rotating shaft of other equipment, and vehicle frame 10 is the fixing frame of equipment, and controller 6 is connected with the braking circuit of equipment.
Install for convenient, brake drum 2 includes basin drum 11 and basin lid 12, basin drum 11 is fixedly connected with basin lid 12, basin drum 11 is tightly connected with basin lid 12, braking die cavity 9 is tightly connected with basin lid 12 by basin drum 11 and consists of, basin drum 11 is tightly connected with wheel axle 7, and basin lid 12 is tightly connected with wheel axle 7, and electromagnetic coil 5 is installed on the bulging basin 11; Basin drum 11 is provided with the first axletree hole 13, wheel axle 7 passes the first axletree hole 13, be provided with the first Sealing 14 between the first axletree hole 13 and the wheel axle 7, basin lid 12 is provided with the second axletree hole 15, be provided with the second Sealing between the second axletree hole 15 and the wheel axle 7, be provided with the 3rd Sealing 16 between basin drum 11 and the basin lid 12; 13 positions, the first axletree hole of basin drum 11 are provided with the first seal groove 21, the first Sealings 14 and are installed in the first seal groove 21; The second axletree hole 15 of basin lid 12 is provided with the second seal groove 22, the second Sealings and is installed in the second seal groove 22.
In order to increase the resistance of braking, the internal face 17 of brake drum 2 is plane not, and the outer wall 18 of rolling disc 1 is plane not, and rolling disc 1 is when brake drum 2 interior rotation, for increasing the outer wall 18 of the internal face 17 of brake drum 2 and rolling disc 1 and the resistance of magnetic fluid 4; Magnetic fluid 4 is mixed with cellosilk, and cellosilk is wear-resisting material manufacturing, and filametntary length is 0.5 millimeter to 10 millimeters, for increasing the shear resistance of magnetic fluid 4, increases the resistance of magnetic fluid 4 and rolling disc 1 and brake drum 2.
The process of the brake that a kind of magnetic fluid drum is stopped is: controller 6 is to electromagnetic coil 5 power supplies, the magnetic field that electromagnetic coil 5 produces, magnetic field is with magnetic fluid 4 magnetization, make magnetic fluid 4 become glutinous plastic body by liquid, the yield stress of magnetic fluid 4 is increased, because magnetic fluid 4 riddles the braking die cavity 9 between rolling disc 1 and the brake drum 2, rolling disc 1 utilizes this resistance brake in the resistance increment that braking die cavity 9 rotates; A kind of magnetic fluid drum process of removing brake of stopping is: controller 6 cuts off the power supply of electromagnetic coils 5, the magnetic field of electromagnetic coil 5 disappears, magnetic fluid 4 loses the effect of external magnetic field, magnetic fluid 4 returns to original liquid condition by glutinous plastic body, make the yield stress of magnetic fluid 4 reduce to original state, rolling disc 1 returns to original not braking state in the resistance that braking die cavity 9 rotates, and brake is removed.
In order to reduce ferromagnet to the interference in magnetic field, brake drum 2 is by non-ferromagnetic body, and rolling disc 1 is non-ferromagnetic body.
For convenient braking die cavity 9 to brake drum 2 injects magnetic fluid 4, the basin drum 11 of brake drum 2 or basin lid 12 are provided with charging connection 22, charging connection 22 includes one-way valve, the direction of one-way valve is by in the braking die cavity 9 outer sensing braking die cavities 9, magnetic fluid 4 can only be injected by one-way valve, can not be flowed out by one-way valve.
The working principle that a kind of magnetic fluid drum is stopped is: during brake, the brake switch of Motor Vehicle or brake control circuit are transferred to controller 6 with brake signal, the electric current of controller 6 control electromagnetic coils 5 progressively is increased to setting value by zero, the setting value of electric current is 1 ampere to 100 amperes, the magnetic intensity that electromagnetic coil 5 produces increases with the increase of electric current, be sealed in the magnetic fluid 4 of brake drum 2 under the magnetic fields of electromagnetic coil 5, magnetic fluid 4 by liquid state to Solid State Transformation, the yield stress of magnetic fluid 4 constantly increases, rolling disc 1 rotates the resistance that is subject to magnetic fluid 4 constantly to be increased, utilize the continuous increase of magnetic fluid 4 yield stresses to hinder rolling disc 1 rotation, the resistance that utilizes magnetic fluid 4 to hinder rolling disc 1 rotation brakes, because rolling disc 1 is fixedly connected with the wheel axle 7 of Motor Vehicle, wheel axle 7 is connected with the wheel hub 8 of Motor Vehicle, the resistance of brake is during more than or equal to the rotatory force of wheel axle 7, and Motor Vehicle is braked; When brake is removed, the brake switch of Motor Vehicle or brake control circuit are transferred to controller 6 with brake signal, the electric current of controller 6 control electromagnetic coils 5 is by the progressively vanishing of brake setting value, the magnetic field of electromagnetic coil 5 disappears, the magnetization of magnetic fluid 4 disappears, magnetic fluid 4 returns to original liquid state by solid-state, magnetic fluid 4 yield stresses return to the original not state of brake, rolling disc 1 rotates the resistance that is subject to magnetic fluid 4 and returns to the state that does not originally brake, the skid resistance that 4 pairs of rolling discs of magnetic fluid 1 rotate is eliminated, and Motor Vehicle normally moves.
Claims (10)
1. a magnetic fluid drum is stopped, it is characterized in that: described a kind of magnetic fluid drum is stopped and is included rolling disc (1), brake drum (2) and magnetohydrodynamic plant (3), and magnetohydrodynamic plant (3) includes magnetic fluid (4), electromagnetic coil (5) and controller (6); Rolling disc (1) is fixedly connected with wheel axle (7), brake drum (2) is established Packed braking die cavity (9), rolling disc (1) is actively tied in the braking die cavity (9), magnetic fluid (4) is sealed in the braking die cavity (9), electromagnetic coil (5) is installed on the brake drum (2), brake drum (2) is fixedly connected with vehicle frame (10), controller (6) is provided with guide line and is connected with electromagnetic coil (5), controller (6) with brake switch or brake control circuit be connected.
2. a kind of magnetic fluid drum according to claim 1 is stopped, it is characterized in that: described brake drum (2) includes basin drum (11) and basin lid (12), basin drum (11) is fixedly connected with basin lid (12), basin drum (11) is tightly connected with basin lid (12), braking die cavity (9) is by basin drum (11) and basin lid (12) formation that is tightly connected, basin drum (11) is tightly connected with wheel axle (7), basin lid (12) is tightly connected with wheel axle (7), and electromagnetic coil (5) is installed on the bulging basin (11).
3. a kind of magnetic fluid drum according to claim 2 is stopped, it is characterized in that: described basin drum (11) is provided with the first axletree hole (13), wheel axle (7) passes the first axletree hole (13), be provided with the first Sealing (14) between the first axletree hole (13) and the wheel axle (7), basin lid (12) is provided with the second axletree hole (15), be provided with the second Sealing (16) between the second axletree hole (15) and the wheel axle (7), be provided with the 3rd Sealing (17) between basin drum (11) and the basin lid (12).
4. a kind of magnetic fluid drum according to claim 1 is stopped, it is characterized in that: the internal face (18) of described brake drum (2) is plane not, the outer wall (19) of rolling disc (1) is plane not, when rolling disc (1) rotates in brake drum (2), for increasing internal face (18) and the outer wall (19) of rolling disc (1) and the viscous force of magnetic fluid (4) of brake drum (2).
5. a kind of magnetic fluid drum according to claim 3 is stopped, it is characterized in that: the position, the first axletree hole (13) of described basin drum (11) is provided with the first seal groove (20), and the first Sealing (14) is installed in the first seal groove (20); The second axletree hole (15) of basin lid (12) is provided with the second seal groove (21), and the second Sealing (16) is installed in the second seal groove (21).
6. a kind of magnetic fluid drum according to claim 1 is stopped, it is characterized in that: the process of the brake that described a kind of magnetic fluid drum is stopped is: controller (6) is powered to electromagnetic coil (5), the magnetic field that electromagnetic coil (5) produces, magnetic fluid (4) is magnetized in magnetic field, make magnetic fluid (4) become glutinous plastic body by liquid, the yield stress of magnetic fluid (4) is increased, because magnetic fluid (4) riddles the braking die cavity (9) between rolling disc (1) and the brake drum (2), rolling disc (1) utilizes this resistance brake in the resistance increment that braking die cavity (9) rotates; A kind of magnetic fluid drum process of removing brake of stopping is: controller (6) cuts off the power supply of electromagnetic coil (5), the magnetic field of electromagnetic coil (5) disappears, magnetic fluid (4) loses the effect of external magnetic field, magnetic fluid (4) returns to original liquid condition by glutinous plastic body, make the yield stress of magnetic fluid (4) reduce to original state, rolling disc (1) returns to original not braking state in the resistance that braking die cavity (9) rotates, and brake is removed.
7. a kind of magnetic fluid drum according to claim 1 is stopped, and it is characterized in that: described magnetic fluid (4) is mixed with cellosilk, for increasing the shear resistance of magnetic fluid (4).
8. a kind of magnetic fluid drum according to claim 1 is stopped, it is characterized in that: basin drum (11) or the basin lid (12) of brake drum (2) are provided with charging connection (22), charging connection (22) includes one-way valve, and the direction of one-way valve is to point in the braking die cavity (9) by braking die cavity (9) is outer.
9. a kind of magnetic fluid drum according to claim 1 is stopped, and it is characterized in that: described brake drum (2) is non-ferromagnetic body, and rolling disc (1) is non-ferromagnetic body.
10. a kind of magnetic fluid drum according to claim 7 is stopped, and it is characterized in that: described filametntary length is 0.5 millimeter to 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397191 CN202851743U (en) | 2012-08-01 | 2012-08-01 | Magnetofluid drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397191 CN202851743U (en) | 2012-08-01 | 2012-08-01 | Magnetofluid drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851743U true CN202851743U (en) | 2013-04-03 |
Family
ID=47982949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220397191 Expired - Fee Related CN202851743U (en) | 2012-08-01 | 2012-08-01 | Magnetofluid drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851743U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829104A (en) * | 2012-08-01 | 2012-12-19 | 林智勇 | Magnetic fluid drum brake |
| CN104295639A (en) * | 2014-09-13 | 2015-01-21 | 黑龙江工程学院 | Roller-type magnetorheological fluid retarding device |
| CN108930731A (en) * | 2018-10-08 | 2018-12-04 | 合肥工业大学 | Zero viscous loss, big controlled range magnetic rheological brake |
| CN109027056A (en) * | 2018-10-08 | 2018-12-18 | 合肥工业大学 | A kind of arc disc type, big controlled range magnetic rheological brake |
| CN109027046A (en) * | 2018-10-08 | 2018-12-18 | 合肥工业大学 | A kind of big controlled range magnetic rheological clutch of small size |
| CN109149903A (en) * | 2018-10-31 | 2019-01-04 | 张殿英 | A kind of charge type non-friction brake |
-
2012
- 2012-08-01 CN CN 201220397191 patent/CN202851743U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829104A (en) * | 2012-08-01 | 2012-12-19 | 林智勇 | Magnetic fluid drum brake |
| CN104295639A (en) * | 2014-09-13 | 2015-01-21 | 黑龙江工程学院 | Roller-type magnetorheological fluid retarding device |
| CN108930731A (en) * | 2018-10-08 | 2018-12-04 | 合肥工业大学 | Zero viscous loss, big controlled range magnetic rheological brake |
| CN109027056A (en) * | 2018-10-08 | 2018-12-18 | 合肥工业大学 | A kind of arc disc type, big controlled range magnetic rheological brake |
| CN109027046A (en) * | 2018-10-08 | 2018-12-18 | 合肥工业大学 | A kind of big controlled range magnetic rheological clutch of small size |
| CN109027046B (en) * | 2018-10-08 | 2020-06-05 | 合肥工业大学 | Small-size large-controllable-range magnetorheological clutch |
| CN109149903A (en) * | 2018-10-31 | 2019-01-04 | 张殿英 | A kind of charge type non-friction brake |
| CN109149903B (en) * | 2018-10-31 | 2023-09-08 | 张殿英 | Charge type non-friction brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130801 |