CN103075443B - Magnetofluid brake drum device - Google Patents
Magnetofluid brake drum device Download PDFInfo
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- CN103075443B CN103075443B CN201310021753.6A CN201310021753A CN103075443B CN 103075443 B CN103075443 B CN 103075443B CN 201310021753 A CN201310021753 A CN 201310021753A CN 103075443 B CN103075443 B CN 103075443B
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- Prior art keywords
- brake
- pad
- fluid
- electromagnetic coil
- braking
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- 239000011553 magnetic fluid Substances 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 230000005291 magnetic effect Effects 0.000 claims abstract description 32
- 230000005484 gravity Effects 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- 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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
磁流体刹车鼓装置包括有外壳、制动盘、转动轴、刹车爪、刹车动力垫、磁流体、制动液、电磁线圈以及控制器；利用控制器控制电磁线圈的磁场，利用磁场控制刹车动力垫内磁流体的比重，利用磁流体的重力的变化来控制刹车动力垫移动，利用刹车动力垫移动来驱动刹车片与制动盘摩擦刹车，利用制动液来降低刹车片以及制动盘的温度，提高刹车片以及制动盘的使用寿命。
The magnetic fluid brake drum device includes a shell, a brake disc, a rotating shaft, a brake claw, a brake power pad, a magnetic fluid, a brake fluid, an electromagnetic coil and a controller; the controller is used to control the magnetic field of the electromagnetic coil, the magnetic field is used to control the specific gravity of the magnetic fluid in the brake power pad, the change in the gravity of the magnetic fluid is used to control the movement of the brake power pad, the movement of the brake power pad is used to drive the brake pad and the brake disc to friction brake, and the brake fluid is used to reduce the temperature of the brake pad and the brake disc, thereby increasing the service life of the brake pad and the brake disc.
Description
技术领域 technical field
本发明涉及一种刹车装置，特别是一种磁流体刹车鼓装置。 The invention relates to a brake device, in particular to a magnetic fluid brake drum device.
背景技术 Background technique
现有的机动车以及一些设备的刹车装置，刹车时，利用油压装置驱动刹车片与制动盘摩擦阻力来刹车的，刹车的冲击力较大，刹车片与制动盘摩擦的温度较高，刹车片容易磨损，影响了刹车片以及制动盘的使用寿命，同时也不利于刹车的安全。 The braking device of the existing motor vehicles and some equipment, when braking, uses the oil pressure device to drive the friction resistance between the brake pad and the brake disc to brake, the impact force of the brake is relatively large, and the friction temperature between the brake pad and the brake disc is relatively high , The brake pads are easy to wear, which affects the service life of the brake pads and brake discs, and is also not conducive to the safety of the brakes.
发明内容 Contents of the invention
本发明的目的是克服现有技术的不足，提供一种机动车以及设备使用的磁流体刹车鼓装置，利用控制器电磁线圈的磁场，利用磁场控制磁流体的比重，利用磁流体的重力来驱动刹车片与制动盘摩擦刹车，利用制动液来降低刹车片以及制动盘的温度。 The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a magnetic fluid brake drum device used in motor vehicles and equipment, using the magnetic field of the controller electromagnetic coil, utilizing the magnetic field to control the specific gravity of the magnetic fluid, and utilizing the gravity of the magnetic fluid to drive The brake pads and brake discs rub against each other, and the brake fluid is used to reduce the temperature of the brake pads and brake discs.
本发明所采用的技术方案是：磁流体刹车鼓装置包括有外壳、制动盘、转动轴、刹车爪、刹车动力垫、磁流体、制动液、电磁线圈以及控制器；制动盘与转动轴固定连接，转动轴与外壳的轴承动配合连接，制动盘密封于外壳的制动型腔内，制动型腔内设有制动液；刹车爪位于制动盘的上方，刹车爪的刹车片位于制动盘制动面的对面，刹车爪与外壳铰接，刹车爪设有弹簧与外壳连接，利用弹簧的弹力拉住刹车爪，使刹车爪的刹车片离开制动盘的制动面；刹车动力垫位于刹车爪的上方，刹车动力垫内密封有磁流体，电磁线圈设于刹车动力垫的外部，电磁线圈的磁力线经过磁流体，控制器设有控制线与电磁线圈连接，刹车动力垫的比重小于制动液的比重，刹车动力垫的重力小于刹车动力垫于制动液受到的浮力。 The technical solution adopted in the present invention is: the magnetic fluid brake drum device includes a casing, a brake disc, a rotating shaft, a brake claw, a brake power pad, a magnetic fluid, a brake fluid, an electromagnetic coil and a controller; The shaft is fixedly connected, the rotating shaft is connected with the bearing of the housing in dynamic fit, the brake disc is sealed in the brake cavity of the housing, and brake fluid is provided in the brake cavity; the brake pawl is located above the brake disc, and the brake pawl The brake pad is located on the opposite side of the braking surface of the brake disc. The brake pawl is hinged to the housing. The brake pawl is connected to the housing by a spring, and the brake pawl is pulled by the elastic force of the spring so that the brake pad of the brake pawl is separated from the braking surface of the brake disc. The brake power pad is located above the brake claw, and the inside of the brake power pad is sealed with magnetic fluid. The electromagnetic coil is arranged outside the brake power pad. The magnetic force line of the electromagnetic coil passes through the magnetic fluid. The specific gravity of the pad is less than that of the brake fluid, and the gravity of the brake power pad is less than the buoyancy of the brake power pad on the brake fluid.
使用时，外壳与机动车或者设备的机架固定连接，转动轴与需要制动的转轴固定连接；制动时，利用控制器接通电磁线圈的电源，电磁线圈产生磁场，磁场将刹车动力垫内的磁流体磁化，利用控制器控制电磁线圈的磁场强度不断增加，使磁流体的比重不断增加，使刹车动力垫的比重大于制动液的比重，使刹车动力垫的比重大于制动液的比重，使刹车动力垫克服弹簧的弹力推动刹车爪的刹车片向下摆动，使刹车片与制动盘摩擦，利用刹车片与制动盘摩擦力阻碍制动盘转动；刹车解除时，控制器切断电磁线圈的电源，电磁线圈的磁场消失，刹车动力垫内磁流体的比重恢复到原来未磁化的状态，刹车动力垫的重力小于刹车动力垫于刹车液受到的浮力，刹车爪在弹簧的弹力作用下摆动复位，刹车爪的刹车片离开制动盘，刹车解除；利用控制器控制电磁线圈的磁场，利用磁场控制磁流体的比重，利用磁流体的比重控制刹车动力垫的比重，利用刹车动力垫的重力控制刹车动力垫向下移动，利用刹车动力垫向下移动推动刹车爪刹车，以达到利用控制器控制刹车的目的；外壳设有散热片，刹车片与制动盘摩擦产生的热量经制动液传递到外壳，热量再由外壳散发出去，提高散热的效果，降低刹车片与制动盘摩擦的温度，提高刹车片以及制动盘的使用寿命。 When in use, the housing is fixedly connected to the frame of the motor vehicle or equipment, and the rotating shaft is fixedly connected to the rotating shaft that needs to be braked; when braking, the controller is used to connect the power supply of the electromagnetic coil, the electromagnetic coil generates a magnetic field, and the magnetic field will brake the power pad The magnetization of the magnetic fluid inside, use the controller to control the magnetic field strength of the electromagnetic coil to increase continuously, so that the proportion of the magnetic fluid is continuously increased, so that the specific gravity of the brake power pad is greater than that of the brake fluid, and the specific gravity of the brake power pad is greater than that of the brake fluid. The specific gravity makes the brake power pad overcome the elastic force of the spring to push the brake pad of the brake pawl to swing downward, so that the brake pad and the brake disc are rubbed, and the friction force between the brake pad and the brake disc is used to hinder the rotation of the brake disc; when the brake is released, the controller Cut off the power supply of the electromagnetic coil, the magnetic field of the electromagnetic coil disappears, and the specific gravity of the magnetic fluid in the brake power pad returns to the original unmagnetized state. The gravity of the brake power pad is less than the buoyancy force of the brake power pad on the brake fluid. Swing and reset under the action, the brake pads of the brake pawl leave the brake disc, and the brake is released; use the controller to control the magnetic field of the electromagnetic coil, use the magnetic field to control the proportion of the magnetic fluid, use the proportion of the magnetic fluid to control the proportion of the brake power pad, and use the brake force The gravity of the pad controls the downward movement of the brake power pad, and uses the brake power pad to move down to push the brake paw to brake, so as to achieve the purpose of using the controller to control the brake; the shell is equipped with a heat sink, and the heat generated by the friction between the brake pad and the brake disc The brake fluid is transferred to the casing, and the heat is dissipated from the casing to improve the heat dissipation effect, reduce the friction temperature between the brake pad and the brake disc, and increase the service life of the brake pad and the brake disc.
本发明的有益效果是：磁流体刹车鼓装置包括有外壳、制动盘、转动轴、刹车爪、刹车动力垫、磁流体、制动液、电磁线圈以及控制器；利用控制器电磁线圈的磁场，利用磁场控制刹车动力垫内磁流体的比重，利用磁流体的重力的变化来控制刹车动力垫移动，利用刹车动力垫移动来驱动刹车片与制动盘摩擦刹车，利用制动液来降低刹车片以及制动盘的温度，提高刹车片以及制动盘的使用寿命。 The beneficial effects of the present invention are: the magnetic fluid brake drum device includes a casing, a brake disc, a rotating shaft, a brake claw, a brake power pad, a magnetic fluid, a brake fluid, an electromagnetic coil and a controller; , use the magnetic field to control the specific gravity of the magnetic fluid in the brake power pad, use the change of the gravity of the magnetic fluid to control the movement of the brake power pad, use the movement of the brake power pad to drive the friction brake between the brake pad and the brake disc, and use the brake fluid to reduce the brake pressure. The temperature of pads and brake discs can be improved, and the service life of brake pads and brake discs can be improved.
附图说明 Description of drawings
图1是磁流体刹车鼓装置的结构示意图； Fig. 1 is the structural representation of magnetic fluid brake drum device;
图2是图1的左视图。 Fig. 2 is a left side view of Fig. 1 .
具体实施方式 Detailed ways
下面结合附图对本发明进行进一步的说明： Below in conjunction with accompanying drawing, the present invention is further described:
图1所示的磁流体刹车鼓装置的结构示意图以及图2所示图1的左视图，磁流体刹车鼓装置包括有外壳1、制动盘2、转动轴3、刹车爪4、刹车动力垫5、磁流体6、制动液7、电磁线圈8以及控制器9；制动盘2与转动轴3固定连接，转动轴3的轴线与制动盘2的轴线相同，转动轴3与外壳1动配合连接，制动盘2密封于外壳1的制动型腔10内，制动型腔10内设有制动液7；刹车爪4位于制动盘2的上方，刹车爪4的刹车片11位于制动盘2制动面12的对面，刹车爪4与外壳1铰接，刹车爪4设有弹簧13与外壳1连接，弹簧13为拉伸弹簧，弹簧13一端与外壳1的内连接环16连接，弹簧13另一端与刹车爪4的外连接环17连接，利用弹簧13的弹力拉住刹车爪4，使刹车爪4的刹车片11离开制动盘2的制动面12；刹车动力垫5位于刹车爪4的上方，刹车动力垫5内密封有磁流体6，电磁线圈8设于刹车动力垫5的外部，电磁线圈8的磁力线经过磁流体6，控制器9设有控制线与电磁线圈8连接，刹车动力垫5的比重小于制动液7的比重，刹车动力垫5的重力小于刹车动力垫5于制动液7受到的浮力，使刹车动力垫5悬浮于刹车爪4的上方。转动轴3与外壳1的轴承座21之间设有密封圈22，用于减少制动液7泄露。 The structural diagram of the magnetic fluid brake drum device shown in Figure 1 and the left view of Figure 1 shown in Figure 2, the magnetic fluid brake drum device includes a housing 1, a brake disc 2, a rotating shaft 3, a brake pawl 4, and a brake power pad 5. Magnetic fluid 6, brake fluid 7, electromagnetic coil 8 and controller 9; the brake disc 2 is fixedly connected to the rotating shaft 3, the axis of the rotating shaft 3 is the same as the axis of the brake disc 2, and the rotating shaft 3 is connected to the casing 1 The brake disc 2 is sealed in the brake cavity 10 of the casing 1, and the brake cavity 10 is provided with a brake fluid 7; the brake pawl 4 is located above the brake disc 2, and the brake pad of the brake pawl 4 11 is located on the opposite side of the braking surface 12 of the brake disc 2. The brake pawl 4 is hinged to the housing 1. The brake pawl 4 is provided with a spring 13 connected to the housing 1. The spring 13 is a tension spring. One end of the spring 13 is connected to the inner connecting ring of the housing 1. 16 connection, the other end of the spring 13 is connected with the outer connecting ring 17 of the brake claw 4, and the brake claw 4 is pulled by the elastic force of the spring 13, so that the brake pad 11 of the brake claw 4 leaves the braking surface 12 of the brake disc 2; The pad 5 is located above the brake pawl 4, the brake power pad 5 is sealed with a magnetic fluid 6, the electromagnetic coil 8 is located outside the brake power pad 5, the magnetic force lines of the electromagnetic coil 8 pass through the magnetic fluid 6, and the controller 9 is provided with a control line and The electromagnetic coil 8 is connected, the specific gravity of the brake power pad 5 is smaller than that of the brake fluid 7, and the gravity of the brake power pad 5 is smaller than the buoyancy force of the brake power pad 5 on the brake fluid 7, so that the brake power pad 5 is suspended on the brake pawl 4 above. A sealing ring 22 is provided between the rotating shaft 3 and the bearing seat 21 of the housing 1 to reduce leakage of the brake fluid 7 .
磁流体刹车鼓装置的工作原理是：使用时，外壳1与机动车或者设备的机架固定连接，转动轴3与需要制动的转轴固定连接；制动时，利用控制器9接通电磁线圈8的电源，电磁线圈8产生磁场，磁场将刹车动力垫5内的磁流体6磁化，利用控制器9控制电磁线圈8的磁场强度不断增加，使磁流体6的比重不断增加，使刹车动力垫5的比重大于制动液7的比重，刹车动力垫5的比重大于制动液7的比重，使刹车动力垫5克服弹簧13的弹力推动刹车爪4的刹车片11向下摆动，使刹车片11与制动盘2摩擦，利用刹车片11与制动盘2摩擦力阻碍制动盘2转动；刹车解除时，控制器9切断电磁线圈8的电源，电磁线圈8的磁场消失，刹车动力垫5内磁流体6的比重恢复到原来未磁化的状态，刹车动力垫5的重力小于刹车动力垫5于刹车液7受到的浮力，刹车爪4在弹簧13的弹力作用下摆动复位，刹车爪4的刹车片11离开制动盘2，刹车解除；利用控制器9控制电磁线圈8的磁场，利用磁场控制磁流体6的比重，利用磁流体6的比重控制刹车动力垫5的比重，利用刹车动力垫5的比重控制刹车动力垫5向下移动，利用刹车动力垫5向下移动推动刹车爪4刹车，以达到利用控制器9控制刹车的目的。 The working principle of the magnetic fluid brake drum device is: when in use, the housing 1 is fixedly connected to the frame of the motor vehicle or equipment, and the rotating shaft 3 is fixedly connected to the rotating shaft that needs to be braked; when braking, the electromagnetic coil is connected by the controller 9 8, the electromagnetic coil 8 generates a magnetic field, and the magnetic field magnetizes the magnetic fluid 6 in the brake power pad 5, and the controller 9 is used to control the magnetic field strength of the electromagnetic coil 8 to continuously increase, so that the proportion of the magnetic fluid 6 is continuously increased, so that the brake power pad The specific gravity of 5 is greater than that of the brake fluid 7, and the specific gravity of the brake power pad 5 is greater than that of the brake fluid 7, so that the brake power pad 5 overcomes the elastic force of the spring 13 and pushes the brake pad 11 of the brake pawl 4 to swing downward, so that the brake pad 5 11 rubs against the brake disc 2, using the friction force between the brake pad 11 and the brake disc 2 to hinder the rotation of the brake disc 2; when the brake is released, the controller 9 cuts off the power supply of the electromagnetic coil 8, the magnetic field of the electromagnetic coil 8 disappears, and the brake power pad 5, the specific gravity of the magnetic fluid 6 returns to the original unmagnetized state, the gravity of the brake power pad 5 is less than the buoyancy force of the brake power pad 5 on the brake fluid 7, and the brake pawl 4 swings back under the elastic force of the spring 13, and the brake pawl 4 The brake pad 11 leaves the brake disc 2, and the brake is released; utilize the controller 9 to control the magnetic field of the electromagnetic coil 8, utilize the magnetic field to control the proportion of the magnetic fluid 6, utilize the proportion of the magnetic fluid 6 to control the proportion of the brake power pad 5, and utilize the brake power The specific gravity of the pad 5 controls the brake power pad 5 to move downward, and the brake power pad 5 is used to move down to push the brake pawl 4 to brake, so as to achieve the purpose of using the controller 9 to control the brake.
为了实施利用控制器9控制电磁线圈8的磁场强度，控制器9向电磁线圈8输出不断变化的电压，电磁线圈8的磁场强度随控制器9向电磁线圈8输入电压的上升而增加，控制器9输送给电磁线圈8的电压提高，电磁线圈8的磁场强度增加，控制器9输送给电磁线圈8的电压降低，电磁线圈8的磁场强度减少。控制器9向电磁线圈8输出变化的电压，变化的电压的范围由12伏至380伏。 Utilize controller 9 to control the magnetic field intensity of electromagnetic coil 8 in order to implement, controller 9 outputs the voltage that constantly changes to electromagnetic coil 8, the magnetic field intensity of electromagnetic coil 8 increases with controller 9 to the rising of electromagnetic coil 8 input voltage, controller 9 The voltage sent to the electromagnetic coil 8 increases, the magnetic field strength of the electromagnetic coil 8 increases, the voltage sent by the controller 9 to the electromagnetic coil 8 decreases, and the magnetic field strength of the electromagnetic coil 8 decreases. The controller 9 outputs a variable voltage to the electromagnetic coil 8, and the variable voltage ranges from 12 volts to 380 volts.
为了使刹车动力垫5的比重小于制动液7的比重，刹车动力垫5由橡胶密封层14与泡沫塑料层15构成，泡沫塑料层15密封于橡胶密封层14内，磁流体6密封于泡沫塑料层15内，制动液7为水，或者，制动液为水的乳化液，刹车动力垫5的比重小于水或者水的乳化液的比重；磁流体6比重的变化范围为1.2克/厘米3至20克/厘米3；刹车动力垫5的比重的变化范围为0.9克/厘米3至19克/厘米3。 In order to make the specific gravity of the brake power pad 5 smaller than that of the brake fluid 7, the brake power pad 5 is composed of a rubber seal layer 14 and a foam plastic layer 15, the foam plastic layer 15 is sealed in the rubber seal layer 14, and the magnetic fluid 6 is sealed in the foam In the plastic layer 15, the brake fluid 7 is water, or the brake fluid is an emulsion of water, and the specific gravity of the brake power pad 5 is less than that of water or the emulsion of water; the range of the specific gravity of the magnetic fluid 6 is 1.2 g/ cm 3 to 20 g/cm 3 ; the specific gravity of the brake power pad 5 ranges from 0.9 g/cm 3 to 19 g/cm 3 .
为了使刹车爪4对称刹车，刹车爪4包括由左刹车爪18与右刹车爪19，左刹车爪18与右刹车爪19之间设有定位间隙20，刹车动力垫5设有定位凸台21，定位凸台21位于定位间隙20的位置。 In order to brake the brake pawl 4 symmetrically, the brake pawl 4 includes a left brake pawl 18 and a right brake pawl 19, a positioning gap 20 is provided between the left brake pawl 18 and the right brake pawl 19, and the brake power pad 5 is provided with a positioning boss 21 , the positioning boss 21 is located at the position of the positioning gap 20 .
为了提高刹车的散热效率，制动液7充满制动型腔10，利用制动液7降低刹车片11与制动盘2摩擦温度；外壳1设有散热片23，刹车片11与制动盘2摩擦产生的热量经制动液7传递到外壳1，热量再由外壳1散发出去，通过散热的效果，降低刹车片11与制动盘2摩擦的温度，提高刹车片11以及制动盘2的使用寿命。 In order to improve the heat dissipation efficiency of the brake, the brake fluid 7 is filled with the brake cavity 10, and the friction temperature between the brake pad 11 and the brake disc 2 is reduced by using the brake fluid 7; 2. The heat generated by friction is transmitted to the casing 1 through the brake fluid 7, and then the heat is dissipated by the casing 1. Through the effect of heat dissipation, the friction temperature between the brake pad 11 and the brake disc 2 is reduced, and the temperature of the brake pad 11 and the brake disc 2 is increased. service life.
磁流体刹车鼓装置的非刹车状态是：刹车动力垫5受到制动液7向上的浮力，刹车爪4的刹车片11与制动盘2的制动面12有间隙。磁流体刹车鼓装置的刹车状态是：刹车动力垫5的磁流体6被电磁线圈8的磁场磁化，刹车动力垫5的比重增加，刹车动力垫5向下的重力大于刹车动力垫5于制动液7受到向上的浮力，刹车爪4的刹车片11与制动盘2的制动面12接触摩擦刹车。 The non-braking state of the magnetic fluid brake drum device is: the brake power pad 5 is subjected to the upward buoyancy of the brake fluid 7, and there is a gap between the brake pad 11 of the brake pawl 4 and the brake surface 12 of the brake disc 2. The braking state of the magnetic fluid brake drum device is: the magnetic fluid 6 of the brake power pad 5 is magnetized by the magnetic field of the electromagnetic coil 8, the proportion of the brake power pad 5 increases, and the downward gravity of the brake power pad 5 is greater than that of the brake power pad 5 in braking. The liquid 7 is subjected to upward buoyancy, and the brake pads 11 of the brake pawl 4 contact the braking surface 12 of the brake disc 2 for friction braking.
为了减少铁磁材料对电磁线圈8磁场的的干扰，其特征在于：所述的外壳1、制动盘2、刹车爪4以及刹车动力垫5为非铁磁材料构成，外壳1以及制动盘2由铝合金构成，刹车爪4由铝合金与陶瓷磨料构成。 In order to reduce the interference of ferromagnetic materials to the magnetic field of the electromagnetic coil 8, it is characterized in that: the housing 1, the brake disc 2, the brake claw 4 and the brake power pad 5 are made of non-ferromagnetic materials, and the housing 1 and the brake disc 2 is made of aluminum alloy, and the brake claw 4 is made of aluminum alloy and ceramic abrasive.
为了使刹车动力垫5位于刹车爪4的上方，其特征在于：所述的外壳1的制动型腔10设有限位槽24，刹车动力垫5动配合于限位槽24内，使刹车动力垫5于限位槽24内上升或者下降。 In order to make the brake power pad 5 above the brake pawl 4, it is characterized in that: the brake cavity 10 of the housing 1 is provided with a limit groove 24, and the brake power pad 5 is movably fitted in the limit groove 24, so that the brake power The pad 5 ascends or descends in the limiting groove 24 .
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| 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 |
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| CN103062253A (en) * | 2013-01-03 | 2013-04-24 | 郑运婷 | Magnetic fluid buoyancy brake drum |
| CN103075443B (en) * | 2013-01-03 | 2015-05-20 | 郑运婷 | Magnetofluid brake drum device |
| CN103089855B (en) * | 2013-01-03 | 2015-04-08 | 郑运婷 | Brake drum device |
| CN103122955A (en) * | 2013-01-03 | 2013-05-29 | 郑运婷 | Magnetic fluid brake drum |
| CN105134842B (en) * | 2015-10-12 | 2017-06-20 | 玫德集团有限公司 | A kind of tapping machine pneumatically operated brake |
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|---|---|---|---|---|
| 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 |
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| 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 |
| 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 |
| CN103122955A (en) * | 2013-01-03 | 2013-05-29 | 郑运婷 | Magnetic fluid brake drum |
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| 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 |
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| WO2014106450A1 (en) | 2014-07-10 |
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