CN103062253A - Buoyancy brake drum with magnetic fluid - Google Patents
Buoyancy brake drum with magnetic fluid Download PDFInfo
- Publication number
- CN103062253A CN103062253A CN 201310023312 CN201310023312A CN103062253A CN 103062253 A CN103062253 A CN 103062253A CN 201310023312 CN201310023312 CN 201310023312 CN 201310023312 A CN201310023312 A CN 201310023312A CN 103062253 A CN103062253 A CN 103062253A
- Authority
- CN
- China
- Prior art keywords
- brake
- magnetic fluid
- shell
- brake pad
- brake disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/16—Brakes with two brake-blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/80—Features relating to cooling for externally-engaging brakes
- F16D65/813—Features relating to cooling for externally-engaging brakes with closed cooling system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/853—Features relating to cooling for disc brakes with closed cooling system
Abstract
A buoyancy brake drum with magnetic fluid comprises a shell, a brake disc, a rotating shaft, brake claws, the magnetic fluid, electromagnetic coils and a controller. The controller controls magnetic fields of the electromagnetic coils, the specific gravity of the magnetic fluid is controlled by the magnetic fields, and buoyancy which is exerted on the brake claws by the magnetic fluid is controlled by the specific gravity of the magnetic fluid, and drives brake pads of the brake claws and the brake disc to realize a friction brake effect. The buoyancy brake drum has the advantages that the temperature of each brake pad and the temperature of the brake disc are reduced by the magnetic fluid, accordingly, the service life of each brake pad and the service life of the brake disc are prolonged, and brake locking faults are reduced.
Description
Technical field
The present invention relates to a kind of braking device, particularly a kind of magnetic fluid buoyancy brake drum.
Background technique
The braking device of existing Motor Vehicle and some equipment, during brake, utilize oil gear driving brake block and brake disc surface friction drag to brake, the temperature of brake block and brake disc friction is higher, brake block and brake disc wear and tear easily, have affected the working life of brake block and brake disc.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the magnetic fluid buoyancy brake drum that provides a kind of Motor Vehicle and equipment to use, utilize brake block and the brake disc friction brake of the buoyancy-driven brake pad that brake pad is subject in magnetic fluid, utilize magnetic fluid to reduce the temperature of brake block and brake disc.
The technical solution adopted in the present invention is: magnetic fluid buoyancy brake drum includes shell, brake disc, rotatingshaft, brake pad, magnetic fluid, electromagnetic coil and controller; Brake disc is fixedly connected with rotatingshaft, and the axis of rotatingshaft is identical with the axis of brake disc, and rotatingshaft is connected movingly with shell, and brake disc is sealed in the braking die cavity of shell, and magnetic fluid is located in the braking die cavity; Brake pad is positioned at the below of brake disc, and the brake block of brake pad is positioned at the opposite of brake disc braking surface, and brake pad and shell are hinged; Electromagnetic coil is located on the shell, the magnetic line of force of electromagnetic coil is through magnetic fluid, and controller is provided with guide line and is connected with electromagnetic coil, and the proportion of brake pad is greater than the proportion of magnetic fluid, brake pad is sunk at the action of gravitation lower swing, make the brake block of brake pad and brake disc leave the gap.Magnetic fluid is full of the braking die cavity, utilizes magnetic fluid to reduce brake block and brake disc friction temperature; Shell is provided with radiating fin, and the fricative heat of brake block and brake disc is delivered to shell through magnetic fluid, and heat is distributed by shell again.
During use, shell is fixedly connected with the frame of Motor Vehicle or equipment, and rotatingshaft is fixedly connected with the rotating shaft that needs braking; During braking, utilize controller to connect the power supply of electromagnetic coil, electromagnetic coil produces magnetic field, the magnetic fluid magnetization in the die cavity will be braked in magnetic field, utilize the magnetic intensity of controller control electromagnetic coil constantly to increase, the proportion of magnetic fluid is constantly increased, the proportion of magnetic fluid is greater than the proportion of brake pad, brake pad upwards swings under the effect of magnetic fluid buoyancy, make brake block and the brake disc friction of brake pad, utilize brake block and brake disc frictional force to hinder brake disc and rotate, the buoyancy brake that utilizes controller control brake pad in magnetic fluid, to be subject to; When brake was removed, controller cut off the power supply of electromagnetic coil, and the magnetic field of electromagnetic coil disappears, and magnetic fluid returns to unmagnetized state, the buoyancy that the gravity of brake pad is subject in magnetic fluid greater than brake pad, and brake pad is swung away from brake disc, and brake is removed; When the braking force of brake was strengthened in controller control, the magnetic intensity of controller control electromagnetic coil constantly increased, and the proportion of magnetic fluid is constantly increased, and brake pad is constantly increased in the buoyancy that magnetic fluid is subject to, and the frictional force of brake block and brake disc is constantly increased; When controller control reduced the braking force of brake, the magnetic intensity of controller control electromagnetic coil constantly reduced, and the proportion of magnetic fluid is constantly reduced, and brake pad is constantly reduced in the buoyancy that magnetic fluid is subject to, and the frictional force of brake block and brake disc is constantly reduced.
The invention has the beneficial effects as follows: magnetic fluid buoyancy brake drum includes shell, brake disc, rotatingshaft, brake pad, magnetic fluid, electromagnetic coil and controller; Utilize the magnetic field of controller control electromagnetic coil, utilize the proportion of magnetic field control magnetic fluid, the buoyancy that utilizes the specific gravity control brake pad of magnetic fluid to be subject in magnetic fluid, the buoyancy that utilizes brake pad to be subject in magnetic fluid drives brake block and the brake disc friction brake of brake pad, utilize magnetic fluid to reduce the temperature of brake block and brake disc, improve the working life of brake block and brake disc, reduce the generation of brake locking fault.
Description of drawings
Fig. 1 is the structural representation of magnetic fluid buoyancy brake drum;
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is further detailed:
The structural representation of magnetic fluid buoyancy brake drum shown in Figure 1 and the left view of Fig. 1 shown in Figure 2, magnetic fluid buoyancy brake drum includes shell 1, brake disc 2, rotatingshaft 3, brake pad 4, magnetic fluid 5, electromagnetic coil 6 and controller 7; Brake disc 2 is fixedly connected with rotatingshaft 3, and the axis of rotatingshaft 3 is identical with the axis of brake disc 2, and rotatingshaft 3 is connected movingly with shell 1, and brake disc 2 is sealed in the braking die cavity 8 of shell 1, and magnetic fluid 5 is located in the braking die cavity 8; Brake pad 4 is positioned at the below of brake disc 2, and the brake block 9 of brake pad 4 is positioned at the opposite of brake disc 2 braking surfaces 10, and brake pad 4 is hinged with shell 1; Electromagnetic coil 6 is located on the shell 1, and the magnetic line of force of electromagnetic coil 6 is through magnetic fluid 5, and controller 7 is provided with guide line and is connected with electromagnetic coil 6, and the proportion of brake pad 4 is greater than the proportion of magnetic fluid 5; In order to reduce ferromagnetic material to the interference in electromagnetic coil 6 magnetic fields, shell 1, brake disc 2 and brake pad 4 are that nonferromagnetic material consists of, and shell 1 and brake disc 2 are made of aluminum alloy, and brake pad 4 is made of aluminum alloy and ceramic abrasive.
For the voltage that utilizes controller 7 outputs is implemented control to brake pad 4 and the frictional force of brake disc 2, the magnetic intensity of electromagnetic coil 6 is directly proportional with the voltage of controller 7 input electromagnetic coils 6, the proportion of braking die cavity 8 interior magnetic fluids 5 is directly proportional with the magnetic intensity of electromagnetic coil 6, the buoyancy that brake pad 4 is subject in magnetic fluid 5 is directly proportional with the proportion of magnetic fluid 5, and the brake block 9 of brake pad 4 is directly proportional with the buoyancy that brake pad 4 is subject in magnetic fluid 5 with brake disc 2 frictional force.
For the electric current that utilizes controller 7 outputs is implemented control to brake pad 4 and the frictional force of brake disc 2, electromagnetic coil 6 is provided with a plurality of, each electromagnetic coil 6 around to identical, the direction that produces magnetic field is identical, each electromagnetic coil 6 connection parallel with one another, each electromagnetic coil 6 is provided with switch, and each switch is connected with controller, and the connection of each switch or disjunction are controlled by controller 7; The magnetic intensity of electromagnetic coil 6 is directly proportional with the electric current of controller 7 input electromagnetic coils 6, the proportion of braking die cavity 8 interior magnetic fluids 5 is directly proportional with the magnetic intensity of electromagnetic coil 6, the buoyancy that brake pad 4 is subject in magnetic fluid 5 is directly proportional with the proportion of magnetic fluid 5, and the brake block 9 of brake pad 4 is directly proportional with the buoyancy that brake pad 4 is subject in magnetic fluid 5 with brake disc 2 frictional force.
In order to improve the radiating efficiency of brake, magnetic fluid 5 is full of braking die cavity 8, utilizes magnetic fluid 5 to reduce brake block 9 and brake disc 2 friction temperatures; Shell 1 is provided with radiating fin 11, and brake block 9 is delivered to shell 1 with brake disc 2 fricative heats through magnetic fluid 5, and heat is distributed by shell 1 again.
In order to prevent the leakage of magnetic fluid 5, be provided with the first seal ring 13 between the bearing support 12 of rotatingshaft 3 and shell 1, be used for preventing that magnetic fluid 5 is in rotatingshaft 3 leakages; Shell 1 is provided with the second seal ring 16 and is tightly connected with adjusting bolt 14, prevents that magnetic fluid 5 is in adjusting bolt 14 leakages.
For the brake block 9 of regulating brake pad 4 distance with brake disc 2, it is characterized in that: described shell 1 is provided with adjusting bolt 14, adjusting bolt 14 is connected with shell 1 by screw thread, the upper end 15 of adjusting bolt 14 contacts with brake pad 4, simultaneously, make the brake block 9 of brake pad 4 and the braking surface 10 of brake disc 2 leave the gap.In order to make the surface of contact that increases brake block 9 and brake disc 2, brake pad 4 brake blocks 9 be shaped as circular arc, the radius of circular arc is identical with the radius of brake disc 2 braking surfaces 10.
In order to implement brake, the control rotatingshaft rotates, and shell 1 is fixed with hinge 17, and the upper end 18 of brake pad 4 is provided with hinge cover 19, and hinge cover 19 is hinged with hinge 17, and the lower end 20 of brake pad 4 is positioned at the below of hinge 17 and brake disc 2; During brake, brake pad 4 and brake disc 2 friction brakes.
In order to implement the symmetry brake of brake disc 2, brake pad 4 has two, a brake pad 4 is located at the left side of brake disc 2, another brake pad 4 is located at the right of brake disc 2, the left side of shell 1 and the right are fixed with respectively hinge 17, the hinge cover 19 of left side brake pad 4 is hinged with the hinge 17 on the left side, and the hinge cover 19 of the brake pad 4 on the right is hinged with the hinge 17 on the right; During brake, the brake pad 4 on the left side is by counterclockwise swinging and brake disc 2 frictions, and the brake pad 4 on the right swings and the brake disc friction in the direction of the clock.
Claims (9)
1. magnetic fluid buoyancy brake drum, it is characterized in that: described magnetic fluid buoyancy brake drum includes shell (1), brake disc (2), rotatingshaft (3), brake pad (4), magnetic fluid (5), electromagnetic coil (6) and controller (7); Brake disc (2) is fixedly connected with rotatingshaft (3), the axis of rotatingshaft (3) is identical with the axis of brake disc (2), rotatingshaft (3) is connected movingly with shell (1), brake disc (2) is sealed in the braking die cavity (8) of shell (1), and magnetic fluid (5) is located in the braking die cavity (8); Brake pad (4) is positioned at the below of brake disc (2), and the brake block (9) of brake pad (4) is positioned at the opposite of brake disc (2) braking surface (10), and brake pad (4) is hinged with shell (1); Electromagnetic coil (6) is located on the shell (1), the magnetic line of force of electromagnetic coil (6) is through magnetic fluid (5), controller (7) is provided with guide line and is connected with electromagnetic coil (6), and the proportion of brake pad (4) is greater than the proportion of magnetic fluid (5).
2. magnetic fluid buoyancy brake drum according to claim 1, it is characterized in that: described electromagnetic coil (6) is provided with a plurality of, each electromagnetic coil (6) around to identical, the direction that produces magnetic field is identical, each electromagnetic coil (6) connection parallel with one another, each electromagnetic coil (6) is provided with switch, and each switch is connected with controller, and the connection of each switch or disjunction are controlled by controller (7).
3. magnetic fluid buoyancy brake drum according to claim 1 is characterized in that: described magnetic fluid (5) is full of braking die cavity (8), and shell (1) is provided with radiating fin (11).
4. magnetic fluid buoyancy brake drum according to claim 1 is characterized in that: be provided with the first seal ring (13) between the bearing support (12) of described rotatingshaft (3) and shell (1).
5. magnetic fluid buoyancy brake drum according to claim 1, it is characterized in that: described shell (1), brake disc (2) and brake pad (4) consist of for nonferromagnetic material, shell (1) and brake disc (2) are made of aluminum alloy, and brake pad (4) is made of aluminum alloy and ceramic abrasive.
6. magnetic fluid buoyancy brake drum according to claim 1, it is characterized in that: described shell (1) is provided with adjusting bolt (14), adjusting bolt (14) is connected with shell (1) by screw thread, the upper end (15) of adjusting bolt (14) contacts with brake pad (4), and shell (1) is provided with the second seal ring (16) and is tightly connected with adjusting bolt (14).
7. magnetic fluid buoyancy brake drum according to claim 1 is characterized in that: described brake pad (4) brake block (9) be shaped as circular arc, the radius of circular arc is identical with the radius of brake disc (2) braking surface (10).
8. magnetic fluid buoyancy brake drum according to claim 1, it is characterized in that: described shell (1) is fixed with hinge (17), the upper end (18) of brake pad (4) is provided with hinge cover (19), hinge cover (19) is hinged with hinge (17), and the lower end (20) of brake pad (4) is positioned at the below of hinge (17) and brake disc (2).
9. magnetic fluid buoyancy brake drum according to claim 8, it is characterized in that: described brake pad (4) has two, a brake pad (4) is located at the left side of brake disc (2), another brake pad (4) is located at the right of brake disc (2), the left side of shell (1) and the right are fixed with respectively hinge (17), the hinge cover (19) of left side brake pad (4) is hinged with the hinge (17) on the left side, and the hinge cover (19) of the brake pad on the right (4) is hinged with the hinge (17) on the right.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310023312 CN103062253A (en) | 2013-01-03 | 2013-01-03 | Buoyancy brake drum with magnetic fluid |
| PCT/CN2013/091254 WO2014106451A1 (en) | 2013-01-03 | 2013-12-31 | Magnetic fluid buoyancy brake drum |
| CN201380034725.6A CN104508314A (en) | 2013-01-03 | 2013-12-31 | Magnetic fluid buoyancy brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310023312 CN103062253A (en) | 2013-01-03 | 2013-01-03 | Buoyancy brake drum with magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062253A true CN103062253A (en) | 2013-04-24 |
Family
ID=48105048
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310023312 Pending CN103062253A (en) | 2013-01-03 | 2013-01-03 | Buoyancy brake drum with magnetic fluid |
| CN201380034725.6A Pending CN104508314A (en) | 2013-01-03 | 2013-12-31 | Magnetic fluid buoyancy brake drum |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380034725.6A Pending CN104508314A (en) | 2013-01-03 | 2013-12-31 | Magnetic fluid buoyancy brake drum |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103062253A (en) |
| WO (1) | WO2014106451A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106453A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Brake drum |
| WO2014106452A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid buoyancy brake drum device |
| CN109027053A (en) * | 2017-06-09 | 2018-12-18 | 安德烈·斯蒂尔股份两合公司 | Work apparatus with electromagnetic braking equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186290B1 (en) * | 1997-10-29 | 2001-02-13 | Lord Corporation | Magnetorheological brake with integrated flywheel |
| CN102141100A (en) * | 2011-03-14 | 2011-08-03 | 林智勇 | Magnetic fluid brake device |
| CN102261405B (en) * | 2011-04-09 | 2013-01-09 | 林智勇 | Magnetic fluid oil pressure disc brake device |
| CN102829104A (en) * | 2012-08-01 | 2012-12-19 | 林智勇 | Magnetic fluid drum brake |
| CN102817939A (en) * | 2012-08-11 | 2012-12-12 | 林智勇 | Magnetofluid disc brake |
| CN103122955A (en) * | 2013-01-03 | 2013-05-29 | 郑运婷 | Magnetic fluid brake drum |
| CN103075443B (en) * | 2013-01-03 | 2015-05-20 | 郑运婷 | Magnetofluid brake drum device |
| CN203146652U (en) * | 2013-01-03 | 2013-08-21 | 郑运婷 | Magnetic fluid brake drum |
-
2013
- 2013-01-03 CN CN 201310023312 patent/CN103062253A/en active Pending
- 2013-12-31 WO PCT/CN2013/091254 patent/WO2014106451A1/en active Application Filing
- 2013-12-31 CN CN201380034725.6A patent/CN104508314A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106453A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Brake drum |
| WO2014106452A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid buoyancy brake drum device |
| CN109027053A (en) * | 2017-06-09 | 2018-12-18 | 安德烈·斯蒂尔股份两合公司 | Work apparatus with electromagnetic braking equipment |
| CN109027053B (en) * | 2017-06-09 | 2021-09-24 | 安德烈·斯蒂尔股份两合公司 | Work apparatus with electromagnetic braking device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014106451A1 (en) | 2014-07-10 |
| CN104508314A (en) | 2015-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |