CN103075443A - Magnetofluid brake drum device - Google Patents
Magnetofluid brake drum device Download PDFInfo
- Publication number
- CN103075443A CN103075443A CN2013100217536A CN201310021753A CN103075443A CN 103075443 A CN103075443 A CN 103075443A CN 2013100217536 A CN2013100217536 A CN 2013100217536A CN 201310021753 A CN201310021753 A CN 201310021753A CN 103075443 A CN103075443 A CN 103075443A
- Authority
- CN
- China
- Prior art keywords
- brake
- pad
- fluid
- proportion
- power pad
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a magnetofluid brake drum device, which comprises a shell, a brake disc, a rotating shaft, a brake pawl, a brake power cushion, magnetofluid, brake fluid, a solenoid coil and a controller. The magnetic field of the solenoid coil is controlled by using the controller, the proportion of the magnetofluid in the brake power cushion is controlled by using the magnetic field, the movement of the brake power cushion is controlled by using the change of the proportion of the magnetofluid, a brake pad is driven to rub the brake disc for braking by using the movement of the brake power cushion, and the temperature of the brake pad and the brake disc is reduced by using the brake liquid so as to prolong the service life of the brake pad and the brake disc.
Description
Technical field
The present invention relates to a kind of braking device, particularly a kind of magnetic fluid brake drum device.
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 larger, the temperature of brake block and brake disc friction is higher, brake block weares and teares easily, has affected the working life of brake block and brake disc, also is unfavorable for the safety of braking simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the magnetic fluid brake drum device 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 technical solution adopted in the present invention is: magnetic fluid brake drum device includes shell, brake disc, rotatingshaft, brake pad, brake power pad, magnetic fluid, brake fluid, electromagnetic coil and controller; Brake disc is fixedly 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 is less than the proportion of brake fluid, and the gravity of brake power pad is padded on the buoyancy that brake fluid is subject to less than brake power.
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 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 gravity of brake power pad is padded on the buoyancy that brake-fluid is subject to less than brake power, 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, to reach the purpose of utilizing controller control brake; Shell is provided with radiating fin, and the fricative heat of brake block and brake disc is delivered to shell through brake fluid, and heat is distributed by shell again, improves the effect of heat radiation, reduces the temperature of brake block and brake disc friction, improves the working life of brake block and brake disc.
The invention has the beneficial effects as follows: magnetic fluid brake drum device 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 the structural representation of magnetic fluid brake drum device;
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 brake drum device shown in Figure 1 and the left view of Fig. 1 shown in Figure 2, magnetic fluid brake drum device 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 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 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, the proportion of brake power pad 5 is less than the proportion of brake fluid 7, and the gravity of brake power pad 5 in the buoyancy that brake fluid 7 is subject to, makes brake power pad 5 be suspended in the top of brake pad 4 less than brake power pad 5.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.
The working principle of magnetic fluid brake drum device is: during use, shell 1 is fixedly connected with the frame of Motor Vehicle or equipment, and rotatingshaft 3 is fixedly connected with the rotating shaft that needs braking; During braking, utilize controller 9 to connect the power supply of electromagnetic coil 8, electromagnetic coil 8 produces magnetic field, magnetic field magnetic fluids 6 magnetization in the power pad 5 of will braking, utilize the magnetic intensity of controller 9 control electromagnetic coils 8 constantly to increase, the proportion of magnetic fluid 6 is constantly increased, make the proportion of brake power pad 5 greater than the proportion of brake fluid 7, the proportion of brake power pad 5 is greater than the proportion of brake fluid 7, the elastic force that makes brake power pad 5 overcome spring 13 promotes the brake block 11 of brake pad 4 to lower swing, make brake block 11 and brake disc 2 frictions, utilize brake block 11 and brake disc 2 frictional force to hinder brake disc 2 and rotate; When brake is removed, controller 9 cuts off the power supply of electromagnetic coil 8, the magnetic field of electromagnetic coil 8 disappears, the proportion of brake power pad 5 interior magnetic fluids 6 returns to original unmagnetized state, the buoyancy that the gravity of brake power pad 5 is subject in brake-fluid 7 less than brake power pad 5, brake pad 4 resets at the elastic force effect lower swing of spring 13, and the brake block 11 of brake pad 4 leaves brake disc 2, and brake is removed; Utilize the magnetic field of controller 9 control electromagnetic coils 8, utilize the proportion of magnetic field control magnetic fluid 6, utilize the proportion of the specific gravity control brake power pad 5 of magnetic fluid 6, utilize the specific gravity control brake power pad 5 of brake power pad 5 to move down, utilize brake power pad 5 to move down and promote brake pad 4 brakes, to reach the purpose of utilizing controller 9 control brakes.
In order to implement to utilize the magnetic intensity of controller 9 control electromagnetic coils 8, the voltage that controller 9 constantly changes to electromagnetic coil 8 outputs, the magnetic intensity of electromagnetic coil 8 increases with the rising of controller 9 to electromagnetic coil 8 input voltages, the voltage that controller 9 flows to electromagnetic coil 8 improves, the magnetic intensity of electromagnetic coil 8 increases, controller 9 flows to the lower voltage of electromagnetic coil 8, and the magnetic intensity of electromagnetic coil 8 reduces.Controller 9 is to the voltage of the variation of electromagnetic coil 8 outputs, and the scope of the voltage of variation is by 12 volts to 380 volts.
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 symmetrical brakes, brake pad 4 comprises by left brake pad 18 and right brake pad 19, is provided with positioning gap 20 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 of positioning gap 20.
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, by 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.
The non-braking state of magnetic fluid brake drum device is: brake power pad 5 is subject 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.The braking state of magnetic fluid brake drum device 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 subject 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, it is characterized in that: described shell 1, brake disc 2, brake pad 4 and brake power pad 5 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.
In order to make brake power pad 5 be positioned at the top of brake pad 4, 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, makes brake power pad 5 in restraining groove 24 interior rising or declines.
Claims (6)
1. magnetic fluid brake drum device 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 fixedly connected with rotatingshaft (3), rotatingshaft (3) is connected movingly with shell (1), 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);
The working principle of magnetic fluid brake drum device is: during use, shell (1) is fixedly connected with the frame of Motor Vehicle or equipment, and rotatingshaft (3) is fixedly connected with the rotating shaft that needs braking; During braking, utilize controller (9) to connect the power supply of electromagnetic coil (8), electromagnetic coil (8) produces magnetic field, magnetic field magnetic fluid (6) magnetization in the power pad (5) of will braking, utilize the magnetic intensity of controller (9) control electromagnetic coil (8) constantly to increase, the proportion of magnetic fluid (6) is constantly increased, make the proportion of brake power pad (5) greater than the proportion of brake fluid (7), the proportion of brake power pad (5) is greater than the proportion of brake fluid (7), the elastic force that makes brake power pad (5) overcome spring (13) promotes the brake block (11) of brake pad (4) to lower swing, make brake block (11) and brake disc (2) friction, utilize brake block (11) and brake disc (2) frictional force to hinder brake disc (2) and rotate; When brake is removed, controller (9) cuts off the power supply of electromagnetic coil (8), the magnetic field of electromagnetic coil (8) disappears, the proportion of the brake interior magnetic fluid of power pad (5) (6) returns to original unmagnetized state, the buoyancy that the gravity of brake power pad (5) is subject in brake-fluid (7) less than brake power pad (5), brake pad (4) resets at the elastic force effect lower swing of spring (13), the brake block (11) of brake pad (4) leaves brake disc (2), and brake is removed; Utilize the magnetic field of controller (9) control electromagnetic coil (8), utilize the proportion of magnetic field control magnetic fluid (6), utilize the proportion of the specific gravity control brake power pad (5) of magnetic fluid (6), utilize the specific gravity control brake power pad (5) of brake power pad (5) to move down, utilize brake power pad (5) to move down and promote brake pad (4) brake.
2. magnetic fluid brake drum device according to claim 1, it is characterized in that: the proportion of described brake power pad (5) is less than the proportion of brake fluid (7), the buoyancy that the gravity of brake power pad (5) is subject in brake fluid (7) less than brake power pad (5).
3. magnetic fluid brake drum device according to claim 2 is characterized in that: described controller (9) is to the voltage of the variation of electromagnetic coil (8) output, and the scope of the voltage of variation is by 12 volts to 380 volts.
4. magnetic fluid brake drum device according to claim 1, it is characterized in that: the excursion of described magnetic fluid (6) proportion is 1.2 gram per centimeters
3To 20 gram per centimeters
3
5. magnetic fluid brake drum device according to claim 1, it is characterized in that: the excursion of the proportion of described brake power pad (5) is 0.9 gram per centimeter
3To 19 gram per centimeters
3.
6. magnetic fluid brake drum device according to claim 1 is characterized in that: described brake fluid (7) is full of braking die cavity (10), utilizes brake fluid (7) to reduce brake block (11) and brake disc (2) friction temperature.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021753.6A CN103075443B (en) | 2013-01-03 | 2013-01-03 | Magnetofluid brake drum device |
| PCT/CN2013/091243 WO2014106450A1 (en) | 2013-01-03 | 2013-12-31 | Magnetic fluid brake drum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021753.6A CN103075443B (en) | 2013-01-03 | 2013-01-03 | Magnetofluid brake drum device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075443A true CN103075443A (en) | 2013-05-01 |
| CN103075443B CN103075443B (en) | 2015-05-20 |
Family
ID=48152088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021753.6A Active CN103075443B (en) | 2013-01-03 | 2013-01-03 | Magnetofluid brake drum device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103075443B (en) |
| WO (1) | WO2014106450A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106454A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Brake drum device |
| WO2014106448A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid brake drum |
| WO2014106451A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid buoyancy brake drum |
| WO2014106450A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid brake drum device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134842B (en) * | 2015-10-12 | 2017-06-20 | 玫德集团有限公司 | A kind of tapping machine pneumatically operated brake |
Citations (3)
| 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 |
| CN102162497A (en) * | 2011-03-14 | 2011-08-24 | 林智勇 | Magnetic fluid brake device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CN201310021753.6A patent/CN103075443B/en active Active
- 2013-12-31 WO PCT/CN2013/091243 patent/WO2014106450A1/en active Application Filing
Patent Citations (3)
| 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 |
| CN102162497A (en) * | 2011-03-14 | 2011-08-24 | 林智勇 | Magnetic fluid brake device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106454A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Brake drum device |
| WO2014106448A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid brake drum |
| WO2014106451A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid buoyancy brake drum |
| WO2014106450A1 (en) * | 2013-01-03 | 2014-07-10 | Yang Guohui | Magnetic fluid brake drum device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014106450A1 (en) | 2014-07-10 |
| CN103075443B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103075443A (en) | Magnetofluid brake drum device | |
| CN203146652U (en) | Magnetic fluid brake drum | |
| CN103122955A (en) | Magnetic fluid brake drum | |
| CN103089856B (en) | Brake drum | |
| CN104508313B (en) | magnetic fluid buoyancy brake drum device | |
| CN103089855B (en) | Brake drum device | |
| CN105119465B (en) | A kind of double magnet-wheel flexible magnetic force magnetic brakes | |
| CN103062253A (en) | Buoyancy brake drum with magnetic fluid | |
| CN104494635A (en) | Single magnetic type permanent magnet track braking device | |
| CN203023340U (en) | Magnetic fluid buoyancy brake drum | |
| CN202840803U (en) | Electromagnetic engagement mechanism | |
| CN104578687A (en) | Eddy current retarder capable of automatically regulating air gap and control method for eddy current retarder | |
| CN103062251B (en) | Buoyancy disc brake device with magnetic fluid | |
| CN103089862B (en) | Magnetic fluid float force disk brake | |
| CN203023346U (en) | Hydromagnetic buoyancy disc brake | |
| CN103062250A (en) | Floating disc brake device with magnetic fluid | |
| CN104494634A (en) | Dual magnetic type permanent magnet track braking device | |
| CN203146651U (en) | Brake drum | |
| CN203967900U (en) | A kind of new brake motor | |
| CN203023338U (en) | Magnetic fluid floating disc brake | |
| CN204858862U (en) | Frequency conversion brake motor's arresting gear | |
| CN102849647B (en) | For the electro-magnetic braking device of small rail car | |
| CN103089861A (en) | Magnetic fluid float disk brake | |
| CN205101436U (en) | Flexible magnetic brake | |
| CN208257595U (en) | A kind of motor applied to parking lot banister |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 Address after: Qidong City, Jiangsu province 226241 Nantong lvsigang Tianfen electric tools trade city comprehensive building Patentee after: Qidong Tianfen Electric Tool Technology Innovation Center Address before: The town of Humen 523907 Guangdong province Dongguan City Jinlong Road Jin Luan Garden Block A room 908 Patentee before: Zheng Yunting |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220318 Address after: 226000 group 16, Nanxingqiao village, lvsigang Town, Qidong City, Nantong City, Jiangsu Province Patentee after: Nantong xinsidi electromechanical Co.,Ltd. Address before: 226241 Jiangsu, Nantong, Qidong City, Lv Si Gang Town, Tian Fen electric tools business city complex building Patentee before: QIDONG TIANFEN ELECTRIC TOOL TECHNOLOGY INNOVATION CENTER |
|
| TR01 | Transfer of patent right |