CN203146652U - Magnetic fluid brake drum - Google Patents

Magnetic fluid brake drum Download PDF

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Publication number
CN203146652U
CN203146652U CN 201320034743 CN201320034743U CN203146652U CN 203146652 U CN203146652 U CN 203146652U CN 201320034743 CN201320034743 CN 201320034743 CN 201320034743 U CN201320034743 U CN 201320034743U CN 203146652 U CN203146652 U CN 203146652U
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CN
China
Prior art keywords
brake
pad
magnetic fluid
disc
fluid
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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 201320034743
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Chinese (zh)
Inventor
郑运婷
Original Assignee
郑运婷
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Priority to CN 201320034743 priority Critical patent/CN203146652U/en
Application granted granted Critical
Publication of CN203146652U publication Critical patent/CN203146652U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A magnetic fluid brake drum comprises a casing, a brake disc, a rotating shaft, a brake claw, a brake power pad, a magnetic fluid, brake liquid, a magnetic coil and a controller. The brake disc is fixedly connected with the rotating shaft, the rotating shaft is connected with a bearing of the casing in a movable fit mode, the brake disc is sealed in a brake cavity of the casing, and the brake liquid is arranged in the brake cavity. The brake claw is located above the brake disc, a brake piece of the brake claw is located on the opposite face of the brake face of the brake disc, and the brake claw is hinged to the casing and is connected with the casing through a spring. The controller and a magnetic field of the magnetic coil are utilized to control the specific gravity of the magnetic fluid in the brake power pad, the change of the gravity of the magnetic fluid is utilized to control movement of the brake power pad, the movement of the brake power pad is utilized to drive the brake piece and the brake disc to perform friction and braking, the brake liquid is utilized to reduce the temperature of the brake piece and the brake disc, and the service life of the brake piece and the brake disc is prolonged.

Description

A kind of magnetic fluid brake drum
Technical field
The utility model relates to a kind of braking device, particularly a kind of magnetic fluid 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 impact force of brake is bigger, the temperature of brake block and brake disc friction is higher, brake block weares and teares easily, has influenced 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 brake drum that provides a kind of Motor Vehicle and equipment to use, utilize the magnetic field of controller control electromagnetic coil, utilize the proportion of magnetic field control magnetic fluid, utilize the gravity of magnetic fluid to drive brake block and brake disc friction brake, utilize brake 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 brake drum includes shell, brake disc, rotatingshaft, brake pad, brake power pad, magnetic fluid, brake fluid, electromagnetic coil and controller; Brake disc is fixedlyed connected with rotatingshaft, and rotatingshaft is connected movingly with the bearing of shell, and brake disc is sealed in the braking die cavity of shell, is provided with brake fluid in the braking die cavity; Brake pad is positioned at the top of brake disc, the brake block of brake pad is positioned at the opposite of brake disc braking surface, and brake pad and shell are hinged, and brake pad is provided with spring and is connected with shell, utilize the elastic force of spring to hold brake pad, make the brake block of brake pad leave the braking surface of brake disc; Brake power pad is positioned at the top of brake pad, be sealed with magnetic fluid in the brake power pad, electromagnetic coil is located at the outside of brake power pad, the magnetic line of force of electromagnetic coil is through magnetic fluid, controller is provided with guide line and is connected with electromagnetic coil, the proportion of brake power pad makes brake power pad be suspended in the top of brake pad less than the proportion of brake fluid.
During use, shell is fixedlyed connected with the frame of Motor Vehicle or equipment, and rotatingshaft is fixedlyed 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 field magnetic fluid magnetization in the power pad of will braking, utilize the magnetic intensity of controller control electromagnetic coil constantly to increase, the proportion of magnetic fluid is constantly increased, make the proportion of brake power pad greater than the proportion of brake fluid, make the proportion of brake power pad greater than the proportion of brake fluid, the elastic force that makes brake power pad overcome spring promotes the brake block of brake pad to lower swing, make brake block and brake disc friction, utilize brake block and brake disc frictional force to hinder brake disc and rotate; When brake is removed, controller cuts off the power supply of electromagnetic coil, the magnetic field of electromagnetic coil disappears, the proportion of magnetic fluid returns to original unmagnetized state in the brake power pad, the buoyancy that the gravity of brake power pad is subjected in brake-fluid less than brake power pad, brake pad resets at the elastic force effect lower swing of spring, and the brake block of brake pad leaves brake disc, and brake is removed; Utilize the magnetic field of controller control electromagnetic coil, utilize the proportion of magnetic field control magnetic fluid, utilize the proportion of the specific gravity control brake power pad of magnetic fluid, utilize the GRAVITY CONTROL brake power pad of brake power pad to move down, utilize brake power pad to move down and promote the brake pad brake, utilize controller control brake; Shell is provided with radiating fin, reduces the temperature of brake block and brake disc friction.
The beneficial effects of the utility model are: a kind of magnetic fluid brake drum includes shell, brake disc, rotatingshaft, brake pad, brake power pad, magnetic fluid, brake fluid, electromagnetic coil and controller; Utilize the magnetic field of controller control electromagnetic coil, utilize the proportion of magnetic fluid in the magnetic field control brake power pad, utilizing the variation of the gravity of magnetic fluid to control brake power pad moves, utilize brake power pad to move to drive brake block and brake disc friction brake, utilize brake fluid to reduce the temperature of brake block and brake disc, improve the working life of brake block and brake disc.
Description of drawings
Fig. 1 is a kind of structural representation of magnetic fluid 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 brake drum shown in Figure 1 and the left view of Fig. 1 shown in Figure 2, a kind of magnetic fluid brake drum include shell 1, brake disc 2, rotatingshaft 3, brake pad 4, brake power pad 5, magnetic fluid 6, brake fluid 7, electromagnetic coil 8 and controller 9; Brake disc 2 is fixedlyed 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 10 of shell 1, is provided with brake fluid 7 in the braking die cavity 10; Brake pad 4 is positioned at the top of brake disc 2, the brake block 11 of brake pad 4 is positioned at the opposite of brake disc 2 braking surfaces 12, brake pad 4 is hinged with shell 1, brake pad 4 is provided with spring 13 and is connected with shell 1, spring 13 is extension spring, and spring 13 1 ends are connected with the interior connecting ring 16 of shell 1, and spring 13 the other ends are connected with the outer connecting ring 17 of brake pad 4, utilize the elastic force of spring 13 to hold brake pad 4, make the brake block 11 of brake pad 4 leave the braking surface 12 of brake disc 2; Brake power pad 5 is positioned at the top of brake pad 4, be sealed with magnetic fluid 6 in the brake power pad 5, electromagnetic coil 8 is located at the outside of brake power pad 5, the magnetic line of force of electromagnetic coil 8 is through magnetic fluid 6, controller 9 is provided with guide line and is connected with electromagnetic coil 8, and the proportion of brake power pad 5 is less than the proportion of brake fluid 7.Be provided with seal ring 22 between the bearing support 21 of rotatingshaft 3 and shell 1, be used for reducing brake fluid 7 and reveal.
For the proportion that makes brake power pad 5 proportion less than brake fluid 7, brake power pad 5 is made of rubber sealant 14 and foam layer 15, foam layer 15 is sealed in the rubber sealant 14, magnetic fluid 6 is sealed in the foam layer 15, brake fluid 7 is water, perhaps, brake fluid is the emulsified liquid of water, and the proportion of brake power pad 5 is less than the proportion of the emulsified liquid of water or water; The excursion of magnetic fluid 6 proportions is 1.2 gram per centimeters 3To 20 gram per centimeters 3The excursion of the proportion of brake power pad 5 is 0.9 gram per centimeter 3To 19 gram per centimeters 3
In order to make brake pad 4 symmetry brakes, brake pad 4 comprises by left brake pad 18 and right brake pad 19, is provided with gap 20, location between left brake pad 18 and the right brake pad 19, and brake power pad 5 is provided with positioning boss 21, and positioning boss 21 is positioned at the position in gap 20, location.
In order to improve the radiating efficiency of brake, brake fluid 7 is full of braking die cavity 10, utilizes brake fluid 7 to reduce brake block 11 and brake disc 2 friction temperatures; Shell 1 is provided with radiating fin 23, brake block 11 is delivered to shell 1 with brake disc 2 fricative heats through brake fluid 7, and heat is distributed by shell 1 again, improves the effect of heat radiation, reduce the temperature of brake block 11 and brake disc 2 frictions, the working life of improving brake block 11 and brake disc 2.
A kind of non-braking state of magnetic fluid brake drum is: brake power pad 5 is subjected to the buoyancy that brake fluid 7 makes progress, and the brake block 11 of brake pad 4 is gapped with the braking surface 12 of brake disc 2.A kind of braking state of magnetic fluid brake drum is: the magnetic fluid 6 of brake power pad 5 is by the magnetic field magnetisation of electromagnetic coil 8, the proportion of brake power pad 5 increases, brake power pad 5 downward gravity are subjected to buoyancy upwards greater than brake power pad 5 in brake fluid 7, and the brake block 11 of brake pad 4 brakes with braking surface 12 contact frictions of brake disc 2.
For reduce ferromagnetic material to electromagnetic coil 8 magnetic fields interference, shell 1, brake disc 2, brake pad 4 and brake power pad 5 are the nonferromagnetic material formation, shell 1 and brake disc 2 are made of aluminum alloy, brake pad 4 is made of aluminum alloy and ceramic abrasive.In order to make brake power pad 5 be positioned at the top of brake pad 4, the braking die cavity 10 of shell 1 is provided with restraining groove 24, and brake power pad 5 is actively tied in the restraining groove 24, makes brake power pad 5 rise in restraining groove 24 or descend.

Claims (10)

1. magnetic fluid brake drum is characterized in that: described a kind of magnetic fluid brake drum includes shell (1), brake disc (2), rotatingshaft (3), brake pad (4), brake power pad (5), magnetic fluid (6), brake fluid (7), electromagnetic coil (8) and controller (9); Brake disc (2) is fixedlyed 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), and brake disc (2) is sealed in the braking die cavity (10) of shell (1), is provided with brake fluid (7) in the braking die cavity (10); Brake pad (4) is positioned at the top of brake disc (2), the brake block (11) of brake pad (4) is positioned at the opposite of brake disc (2) braking surface (12), brake pad (4) is hinged with shell (1), brake pad (4) is provided with spring (13) and is connected with shell (1), utilize the elastic force of spring (13) to hold brake pad (4), make the brake block (11) of brake pad (4) leave the braking surface (12) of brake disc (2); Brake power pad (5) is positioned at the top of brake pad (4), be sealed with magnetic fluid (6) in the brake power pad (5), electromagnetic coil (8) is located at the outside of brake power pad (5), the magnetic line of force of electromagnetic coil (8) is through magnetic fluid (6), and controller (9) is provided with guide line and is connected with electromagnetic coil (8).
2. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: described brake power pad (5) is made of rubber sealant (14) and foam layer (15), foam layer (15) is sealed in the rubber sealant (14), magnetic fluid (6) is sealed in the foam layer (15), brake fluid (7) is water, perhaps, brake fluid (7) is the emulsified liquid of water, and the proportion of brake power pad (5) is less than the proportion of the emulsified liquid of water or water.
3. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: described spring (13) is extension spring, spring (13) one ends are connected with the interior connecting ring (16) of shell (1), and spring (13) the other end is connected with the outer connecting ring (17) of brake pad (4).
4. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: described brake pad (4) comprises by left brake pad (18) and right brake pad (19), be provided with gap (20), location between left side brake pad (18) and the right brake pad (19), brake power pad (5) is provided with positioning boss (21), and positioning boss (21) is positioned at the position in gap, location (20).
5. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: the non-braking state of described a kind of magnetic fluid brake drum is: brake power pad (5) is subjected to the buoyancy that brake fluid (7) makes progress, and the brake block (11) of brake pad (4) is gapped with the braking surface (12) of brake disc (2).
6. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: the braking state of described a kind of magnetic fluid brake drum is: the magnetic fluid (6) of brake power pad (5) is by the magnetic field magnetisation of electromagnetic coil (8), the proportion of brake power pad (5) increases, the downward gravity of brake power pad (5) is subjected to buoyancy upwards greater than brake power pad (5) in brake fluid (7), and the brake block (11) of brake pad (4) brakes with braking surface (12) contact friction of brake disc (2).
7. a kind of magnetic fluid brake drum according to claim 1 is characterized in that: be provided with seal ring (22) between the bearing support (21) of described rotatingshaft (3) and shell (1).
8. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: described shell (1), brake disc (2), brake pad (4) and brake power pad (5) constitute 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.
9. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: described shell (1) is provided with radiating fin (23).
10. a kind of magnetic fluid brake drum according to claim 1, it is characterized in that: the braking die cavity (10) of described shell (1) is provided with restraining groove (24), and brake power pad (5) is actively tied in the restraining groove (24).
CN 201320034743 2013-01-03 2013-01-03 Magnetic fluid brake drum Expired - Fee Related CN203146652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320034743 CN203146652U (en) 2013-01-03 2013-01-03 Magnetic fluid brake drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320034743 CN203146652U (en) 2013-01-03 2013-01-03 Magnetic fluid brake drum

Publications (1)

Publication Number Publication Date
CN203146652U true CN203146652U (en) 2013-08-21

Family

ID=48974178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320034743 Expired - Fee Related CN203146652U (en) 2013-01-03 2013-01-03 Magnetic fluid brake drum

Country Status (1)

Country Link
CN (1) CN203146652U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122955A (en) * 2013-01-03 2013-05-29 郑运婷 Magnetic fluid brake drum
WO2014106450A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Magnetic fluid brake drum device
WO2014106454A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Brake drum device
WO2014106451A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Magnetic fluid buoyancy brake drum
CN112049871A (en) * 2020-09-14 2020-12-08 刘长华 Drum brake with enhanced braking effect

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122955A (en) * 2013-01-03 2013-05-29 郑运婷 Magnetic fluid brake drum
WO2014106450A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Magnetic fluid brake drum device
WO2014106448A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Magnetic fluid brake drum
WO2014106454A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Brake drum device
WO2014106451A1 (en) * 2013-01-03 2014-07-10 Yang Guohui Magnetic fluid buoyancy brake drum
CN104718395A (en) * 2013-01-03 2015-06-17 张有基 Magnetic fluid brake drum
CN112049871A (en) * 2020-09-14 2020-12-08 刘长华 Drum brake with enhanced braking effect

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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: 20130821

Termination date: 20140103

C17 Cessation of patent right