CN203023340U - Magnetic fluid buoyancy brake drum - Google Patents

Magnetic fluid buoyancy brake drum Download PDF

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Publication number
CN203023340U
CN203023340U CN 201320031587 CN201320031587U CN203023340U CN 203023340 U CN203023340 U CN 203023340U CN 201320031587 CN201320031587 CN 201320031587 CN 201320031587 U CN201320031587 U CN 201320031587U CN 203023340 U CN203023340 U CN 203023340U
Authority
CN
China
Prior art keywords
brake
magnetic fluid
shell
brake pad
electromagnetic coil
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.)
Expired - Fee Related
Application number
CN 201320031587
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Chinese (zh)
Inventor
郑运婷
Original Assignee
郑运婷
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 郑运婷 filed Critical 郑运婷
Priority to CN 201320031587 priority Critical patent/CN203023340U/en
Application granted granted Critical
Publication of CN203023340U publication Critical patent/CN203023340U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a magnetic fluid buoyancy brake drum which comprises an outer shell, a brake disc, a rotary shaft, a brake claw, a magnetic fluid, an electromagnetic coil as well as a controller; the magnetic field of the electromagnetic coil is controlled by the controller; the specific gravity of the magnetic fluid is controlled by the magnetic field; the buoyancy of the brake claw in the magnetic fluid is controlled by utilizing the specific gravity of the magnetic fluid; the braking by friction between the brake sheet of the brake claw and the brake disc is driven by the buoyancy of the brake claw in the magnetic fluid; the temperature of the brake sheet and the brake disc is lowered by utilizing a magnetic fluid; the service life of the brake sheet and the brake disc is prolonged; and the braking clamping stoppage is reduced.

Description

A kind of magnetic fluid buoyancy brake drum
Technical field
The utility model 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 easily wear and tear, and have affected the working life of brake block and brake disc.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of magnetic fluid buoyancy brake drum that provides 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 technological scheme that the utility model adopts is: a kind of 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 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 sinks at the action of gravitation lower swing, makes 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 the temperature of brake block and brake disc; 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.
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 die cavity will be braked in magnetic field, the magnetic intensity of utilizing controller to control electromagnetic coil constantly increases, 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, utilize controller to control the buoyancy brake that brake pad is subject in magnetic fluid; 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 controller was controlled the braking force of strengthening brake, the magnetic intensity that controller is controlled 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 was controlled the braking force that reduces brake, the magnetic intensity that controller is controlled 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 beneficial effects of the utility model are: a kind of magnetic fluid buoyancy brake drum includes shell, brake disc, rotatingshaft, brake pad, magnetic fluid, electromagnetic coil and controller; Utilize controller to control the magnetic field of electromagnetic coil, utilize magnetic field to control the proportion of 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 a kind of 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 utility model is further detailed:
The structural representation of a kind of magnetic fluid buoyancy brake drum shown in Figure 1 and the left view of Fig. 1 shown in Figure 2, a kind of 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 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 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.
For the voltage that utilizes controller 7 outputs is implemented to control to brake pad 4 and the frictional force of brake disc 2, the magnetic intensity of electromagnetic coil 6 is directly proportional to the voltage of controller 7 input electromagnetic coils 6, the proportion of the interior magnetic fluid 5 of braking die cavity 8 is directly proportional to the magnetic intensity of electromagnetic coil 6, the buoyancy that brake pad 4 is subject in magnetic fluid 5 is directly proportional to the proportion of magnetic fluid 5, and the brake block 9 of brake pad 4 is directly proportional to the buoyancy that brake pad 4 is subject in magnetic fluid 5 to brake disc 2 frictional force.
For the electric current that utilizes controller 7 outputs is implemented to 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, the connection parallel with one another of each electromagnetic coil 6, 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 to the electric current of controller 7 input electromagnetic coils 6, the proportion of the interior magnetic fluid 5 of braking die cavity 8 is directly proportional to the magnetic intensity of electromagnetic coil 6, the buoyancy that brake pad 4 is subject in magnetic fluid 5 is directly proportional to the proportion of magnetic fluid 5, and the brake block 9 of brake pad 4 is directly proportional to the buoyancy that brake pad 4 is subject in magnetic fluid 5 to 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 the fricative heat of brake disc 2 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.
In order to reduce ferromagnetic material to the interference in electromagnetic coil 6 magnetic fields, shell 1, brake disc 2 and brake pad 4 consist of for nonferromagnetic material, 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 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, to control rotatingshaft and rotate, 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 a kind of 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 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 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. a kind of 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.
3. a kind of 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. a kind of 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. a kind of 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. a kind of 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. a kind of 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. a kind of 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. a kind of 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.
CN 201320031587 2013-01-03 2013-01-03 Magnetic fluid buoyancy brake drum Expired - Fee Related CN203023340U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320031587 CN203023340U (en) 2013-01-03 2013-01-03 Magnetic fluid buoyancy brake drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320031587 CN203023340U (en) 2013-01-03 2013-01-03 Magnetic fluid buoyancy brake drum

Publications (1)

Publication Number Publication Date
CN203023340U true CN203023340U (en) 2013-06-26

Family

ID=48647328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320031587 Expired - Fee Related CN203023340U (en) 2013-01-03 2013-01-03 Magnetic fluid buoyancy brake drum

Country Status (1)

Country Link
CN (1) CN203023340U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130626

Termination date: 20140103

C17 Cessation of patent right