CN102817941A - Magnetofluid vehicle brake - Google Patents

Magnetofluid vehicle brake Download PDF

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Publication number
CN102817941A
CN102817941A CN 201210298569 CN201210298569A CN102817941A CN 102817941 A CN102817941 A CN 102817941A CN 201210298569 CN201210298569 CN 201210298569 CN 201210298569 A CN201210298569 A CN 201210298569A CN 102817941 A CN102817941 A CN 102817941A
Authority
CN
China
Prior art keywords
brake
buoyant
piston
resets
magnetic fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201210298569
Other languages
Chinese (zh)
Inventor
林智勇
Original Assignee
林智勇
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 林智勇 filed Critical 林智勇
Priority to CN 201210298569 priority Critical patent/CN102817941A/en
Publication of CN102817941A publication Critical patent/CN102817941A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a magnetofluid vehicle brake, which comprises a magnetofluid brake driving device and a brake device, wherein the magnetofluid brake driving device comprises a brake cylinder, magnetofluid, a brake floating element, a reset floating element, an electromagnetic coil and a controller, and the brake device comprises a brake seat and a brake block. The magnetic field change of the magnetofluid is utilized for controlling the buoyancy force of the reset floating element and the brake floating element in the magnetofluid, the buoyancy force of the brake floating element is utilized for driving a piston and a piston rod to move, the piston rod is utilized for driving the brake seat and the brake block to contact a brake disc for realizing the friction with the brake, the reset floating element is utilized for driving the piston and the piston rod to reset, the brake seat and the brake block are driven to reset, the brake block leaves the brake disc, and the braking is relieved. The goal of realizing soft braking for realizing automatic control is reached, the magnetofluid vehicle brake does not use hydraulic oil, and limited hydraulic oil resources are favorably saved.

Description

A kind of magnetic fluid car is stopped
Technical field
The present invention relates to a kind of braking device, particularly a kind of magnetic fluid car is stopped.
Background technique
The braking device of existing Motor Vehicle and many equipment is that the resistance that utilizes hydraulic system to drive brake block and brake disc friction brakes during brake, because oil pipe, the Sealing easy ageing of hydraulic system; Oil-pressure joint is loosening easily etc.; Cause faults such as the easy leakage of oil of hydraulic system, be unfavorable for the safety of braking, simultaneously; The generally use of hydraulic oil is unfavorable for environmental protection.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology; Provide a kind of magnetic fluid car to stop; Utilize the proportion of controller magnetic fluid, utilize the brake buoyant member in magnetic fluid, to receive buoyancy and drive brake block and implement brake, a kind of brake of motor-driven vehicle device that does not use hydraulic oil is provided; Simultaneously, the magnetic fluid disc brake also can be used for the brake of other machinery rotatingshafts.
The technological scheme that the present invention adopted is: a kind of magnetic fluid car is stopped and is comprised magnetic fluid brake drive unit and braking device, and magnetic fluid brake drive unit includes brake cylinder, magnetic fluid, brake buoyant member, the buoyant member that resets, electromagnetic coil and controller; The brake cylinder includes cylinder body, piston and piston rod, and piston is connected with piston rod; Braking device includes brake mount and brake block, and brake mount is connected with brake block, and piston rod is connected with brake mount, and magnetic fluid, brake buoyant member and the buoyant member that resets are located in the cylinder body; The lower end surface of piston down, the brake buoyant member is positioned at the lower end of the lower end surface of piston, is sunken to the bottom of magnetic fluid under the brake buoyant member, an end of brake buoyant member contacts with the cylinder bottom of brake cylinder, the other end of the buoyant member that brakes contacts with the lower end surface of piston; The upper-end surface of piston up; The buoyant member that resets is located between the cylinder top of upper-end surface and cylinder body of piston; The buoyant member that resets is positioned at the bottom of upper-end surface; Resetting is sunken to the bottom of magnetic fluid under the buoyant member, the cylinder top contact of an end of the buoyant member that resets and brake cylinder, and the other end of the buoyant member that resets contacts with the upper-end surface of piston; Electromagnetic coil is installed on the brake cylinder, and controller is provided with guide line and is connected with electromagnetic coil; Proportion before magnetic fluid is unmagnetized is greater than the proportion of the brake buoyant member and the buoyant member that resets.
The working principle that a kind of magnetic fluid car is stopped is: the brake cylinder is fixedly connected with vehicle frame, and brake block is positioned at the next door of brake disc, and controller is connected with the brake switch or the circuit that brakes, and the brake switch or the circuit that brakes are connected with brake is foot-operated; During brake, the brake switch or the circuit that brakes are transferred to controller with signal, and the magnetic intensity of controller control electromagnetic coil constantly increases; Magnetic fluid in the brake cylinder is magnetized; Make the proportion of the proportion of magnetic fluid greater than the brake buoyant member and the buoyant member that resets, when the brake buoyant member and the buoyant member that resets float, the lower end surface of brake buoyant member piston; Utilize the horizontal component of brake buoyant member buoyancy; Promote piston and piston rod and move, utilize piston rod to stretch out to drive brake mount and brake block moves, utilize brake block and brake disc friction brake to the brake direction; When brake was removed, the brake switch or the circuit that brakes were transferred to controller with signal, and the magnetic intensity of controller control electromagnetic coil constantly reduces; Make the magnetic fluid in the brake cylinder lose magnetization; The proportion of magnetic fluid is less than the proportion of the brake buoyant member and the buoyant member that resets, and the brake buoyant member and the buoyant member that resets descend, the buoyant member piston that resets upper-end surface; Utilization resets, and the horizontal component of buoyant member decline gravity promotes piston and piston rod resets to non-brake direction; Utilize piston rod withdrawal drive brake mount and brake block to reset, make brake block leave brake disc, brake is removed.
The invention has the beneficial effects as follows: a kind of magnetic fluid car is stopped, and the utilization brake is ridden and brake switch is transferred to controller with brake signal; Utilize the magnetic field of magnetic fluid in controller and the solenoid controlled brake cylinder; Utilize the changes of magnetic field control magnetic fluid interior brake buoyant member of magnetic fluid and the buoyancy of the buoyant member that resets; Utilize the buoyancy-driven piston and the piston rod of brake buoyant member to move; Utilize piston rod to drive brake mount and brake block and brake disc contact friction brake, implemented to utilize the purpose of controller control brake; Reset buoyant member driven plunger and piston rod of utilization resets, and drives brake mount and brake block and resets, and makes brake block leave brake disc, removes brake; Utilize the size of controller control buoyancy, implemented the size of controller control brake block brake weight, to reach the purpose of callipers brake car and automation control, the magnetic fluid disc brake does not use hydraulic oil, helps saving limited hydraulic oil resource, helps environmental protection; Simultaneously, a kind of magnetic fluid car is stopped and also can be used for the brake of other machinery.
Description of drawings
Fig. 1 is the structural representation that a kind of magnetic fluid car is stopped.
Embodiment
Below in conjunction with accompanying drawing the present invention is further explained:
The structural representation that a kind of magnetic fluid car shown in Figure 1 is stopped; A kind of magnetic fluid car is stopped and is comprised magnetic fluid brake drive unit 1 and braking device 2, and magnetic fluid brake drive unit 1 includes brake cylinder 3, magnetic fluid 4, brake buoyant member 5, the buoyant member 6 that resets, electromagnetic coil 7 and controller 8; Brake cylinder 3 includes cylinder body 9, piston 10 and piston rod 11, and piston 10 is connected with piston rod 11; Braking device 2 includes brake mount 12 and brake block 13, and brake mount 12 is connected with brake block 13, and piston rod 10 is connected with brake mount 12, and magnetic fluid 4, brake buoyant member 5 and the buoyant member 6 that resets are located in the cylinder body 9; The lower end surface 16 of piston 10 down; Brake buoyant member 5 is positioned at the lower end 19 of the lower end surface 16 of piston 10; The brake buoyant member is sunken to the bottom of magnetic fluid 4 for 5 times, and an end of brake buoyant member 5 contacts with the cylinder bottom 18 of brake cylinder 3, and the other end of brake buoyant member 5 contacts with the lower end surface 16 of piston 10; The upper-end surface 17 of piston 10 up; The buoyant member 6 that resets is located at the upper-end surface 17 of piston 10 and the cylinder of cylinder body 9 pushes up between 14; The buoyant member 6 that resets is positioned at the bottom 26 of upper-end surface 17; The buoyant member that resets is sunken to the bottom of magnetic fluid 4 for 6 times, and an end of the buoyant member 6 that resets contacts with the cylinder top 14 of brake cylinder 3, and the other end of the buoyant member 6 that resets contacts with the upper-end surface 17 of piston 10; Electromagnetic coil 7 is installed on brake cylinder 3, and controller 8 is provided with guide line 15 and is connected with electromagnetic coil 7; During use, brake cylinder 3 is fixedly connected with vehicle frame 20, and brake block 13 is positioned at the next door of brake disc 21, and controller 8 is connected with the brake switch or the circuit that brakes, and the brake switch or the circuit that brakes are connected with brake is foot-operated.
Reset in order to implement to utilize brake buoyant member 5 driven plunger 10 to drive brake block 13 brakes and utilize the buoyant member 6 that resets to drive brake block 13; Make brake buoyant member 5 can press piston 10 when floating and move, and can press piston 10 when the buoyant member 6 that resets is sunk and reset to the brake direction; The lower end surface 16 of piston 10 and the angle of vertical line are greater than zero degree, and the lower end surface 16 of piston 10 is spent less than 90 with the angle of vertical line; The upper-end surface 17 of piston 10 and the angle of vertical line are greater than zero degree, and the upper-end surface 17 of piston 10 is spent less than 90 with the angle of vertical line; According to the needs of brake stroke, the lower end surface 16 of piston 10 is 45 degree or 30 degree with the angle of vertical line, and the upper-end surface 17 of piston 10 is 45 degree or 30 degree with the angle of vertical line.The axis normal of the horizontal line of the lower end surface 16 of piston 10 and piston 10 and piston rod 11, the axis normal of the horizontal line of the upper-end surface 17 of piston 10 and piston 10 and piston rod 11.When floating with assurance brake buoyant member 5, brake buoyant member 5 can press piston 10 and piston rod 11 to move, and piston rod 11 promotes the brake block 13 and brake disc 21 friction brakes of braking devices 2; When the buoyant member 6 that resets descended, the buoyant member 6 that resets pressed piston 10 and piston rod 11 to reset, and the brake block 13 that piston rod 11 promotes braking device 2 separates with brake disc 21, and brake is removed.
In order to implement the brake of symmetry; Magnetic fluid brake drive unit 1 includes left magnetic fluid brake drive unit 22 and right magnetic fluid brake drive unit 23; Braking device 2 includes left braking device 24 and right braking device 25; The left side brake cylinder 27 of left side magnetic fluid brake drive unit 22 is fixedly connected with vehicle frame 20, and the right side brake cylinder 29 of right magnetic fluid brake drive unit 23 is fixedly connected with vehicle frame 20; The left brake mount 30 of left side braking device 24 is connected with the left piston bar 31 of left magnetic fluid brake drive unit 22, and the left brake block 32 of left braking device 24 is positioned at the left side of brake disc 21; The right brake mount 33 of right braking device 25 is connected with the right piston rod 34 of right magnetic fluid brake drive unit 23, and the right brake block 35 of right braking device 25 is positioned at the right of brake disc 21.
For the distance that prevents that brake mount 12 and brake block 13 from rotating and regulating brake block 13 and brake disc 21, brake cylinder 3 is provided with guide holder 36, and vehicle frame 20 is connected with guide groove 37; Guide holder 36 is connected with guide groove 37; Guide holder 36 is provided with adjusting screw 38 with guide groove 37, rotates the position that adjusting screw 38 can be regulated guide holder 36, to reach the purpose of the distance of regulating brake block 13 and brake disc 21; Guide holder 36 is provided with retaining screw 28 with guide groove 37, is used for guide holder 36 is fixedly connected with guide groove 37.
In order to implement to utilize piston rod 11 to promote brake block 13 and brake disc friction brake, piston rod 11 is vertical with the brake plane of brake disc 21, the brake plane parallel of the brake lining of brake block 13 and brake disc 21.The lower end surface 16 of brake cylinder 3 pistons 10 is parallel to each other with upper-end surface 17; The center line of piston 10 and piston rod 11 is parallel with horizontal line; Be full of magnetic fluid 4 in brake cylinder 3 die cavities on piston 10 both sides, utilize the proportion of magnetic fluid 4 to change floating of the control brake buoyant member 5 and the buoyant member 6 that resets and sink.Brake buoyant member 5 rises in brake cylinder 3, and brake buoyant member 5 presses piston 10 to move horizontally; The buoyant member 6 of resetting descends, and the buoyant member 6 that resets presses pistons 10 to move horizontally, and the buoyant member 6 that resets presses direction that pistons 10 move horizontally and brake buoyant member 5 to press in the opposite direction that pistons 10 move horizontally.
In order to reduce the interference of ferromagnet to magnetic field, brake cylinder 3 is non-ferromagnetic body, and non-ferromagnetic body includes stainless steel, Cuprum alloy and aluminum alloy; The brake buoyant member 5 and the buoyant member 6 that resets are non-ferromagnetic body, and non-ferromagnetic body includes stainless steel, Cuprum alloy and aluminum alloy.
Stop the not state of brake of a kind of magnetic fluid car is: the proportion of magnetic fluid 4 is less than the proportion of the brake buoyant member 5 and the buoyant member 6 that resets, and the brake buoyant member 5 and the buoyant member 6 that resets are sunken to the bottom of magnetic fluid 4; A kind of state of magnetic fluid car brake is: the proportion of magnetic fluid 4 is greater than the proportion of the brake buoyant member 5 and the buoyant member 6 that resets, and the brake buoyant member 5 and the buoyant member 6 that resets float on the top of magnetic fluid 4.

Claims (3)

1. a magnetic fluid car is stopped; It is characterized in that: described a kind of magnetic fluid car is stopped and is comprised magnetic fluid brake drive unit and braking device, and magnetic fluid brake drive unit includes brake cylinder, magnetic fluid, brake buoyant member, the buoyant member that resets, electromagnetic coil and controller; The brake cylinder includes cylinder body, piston and piston rod, and piston is connected with piston rod; Braking device includes brake mount and brake block, and brake mount is connected with brake block, and piston rod is connected with brake mount, and magnetic fluid, brake buoyant member and the buoyant member that resets are located in the cylinder body; The lower end surface of piston down, the brake buoyant member is positioned at the lower end of the lower end surface of piston, is sunken to the bottom of magnetic fluid under the brake buoyant member, an end of brake buoyant member contacts with the cylinder bottom of brake cylinder, the other end of the buoyant member that brakes contacts with the lower end surface of piston; The upper-end surface of piston up; The buoyant member that resets is located between the cylinder top of upper-end surface and cylinder body of piston; The buoyant member that resets is positioned at the bottom of upper-end surface; Resetting is sunken to the bottom of magnetic fluid under the buoyant member, the cylinder top contact of an end of the buoyant member that resets and brake cylinder, and the other end of the buoyant member that resets contacts with the upper-end surface of piston; Electromagnetic coil is installed on the brake cylinder, and controller is provided with guide line and is connected with electromagnetic coil; During use, the brake cylinder is fixedly connected with vehicle frame, and brake block is positioned at the next door of brake disc, and controller is connected with the brake switch or the circuit that brakes, and the brake switch or the circuit that brakes are connected with brake is foot-operated;
It is characterized in that: the working principle that described a kind of magnetic fluid car is stopped is:
During brake, the brake switch or the circuit that brakes are transferred to controller with signal, and the magnetic intensity of controller control electromagnetic coil constantly increases; Magnetic fluid in the brake cylinder is magnetized; Make the proportion of the proportion of magnetic fluid greater than the brake buoyant member and the buoyant member that resets, when the brake buoyant member and the buoyant member that resets float, the lower end surface of brake buoyant member piston; Utilize the horizontal component of brake buoyant member buoyancy; Promote piston and piston rod and move, utilize piston rod to stretch out to drive brake mount and brake block moves, utilize brake block and brake disc friction brake to the brake direction;
When brake was removed, the brake switch or the circuit that brakes were transferred to controller with signal, and the magnetic intensity of controller control electromagnetic coil constantly reduces; Make the magnetic fluid in the brake cylinder lose magnetization; The proportion of magnetic fluid is less than the proportion of the brake buoyant member and the buoyant member that resets, and the brake buoyant member and the buoyant member that resets descend, the buoyant member piston that resets upper-end surface; Utilization resets, and the horizontal component of buoyant member decline gravity promotes piston and piston rod resets to non-brake direction; Utilize piston rod withdrawal drive brake mount and brake block to reset, make brake block leave brake disc, brake is removed.
2. a kind of magnetic fluid car according to claim 1 is stopped; It is characterized in that: stop the not state of brake of described a kind of magnetic fluid car is: the proportion of magnetic fluid (4) is less than the proportion of brake buoyant member (5) and the buoyant member that resets (6), and brake buoyant member (5) and the buoyant member that resets (6) are sunken to the bottom of magnetic fluid (4); A kind of state of magnetic fluid car brake is: the proportion of magnetic fluid (4) is greater than the proportion of brake buoyant member (5) and the buoyant member that resets (6), and brake buoyant member (5) and the buoyant member that resets (6) float on the top of magnetic fluid (4).
3. a kind of magnetic fluid car according to claim 1 is stopped, and it is characterized in that: described brake buoyant member (5) rises in brake cylinder (3), and brake buoyant member (5) presses piston (10) to move horizontally; The buoyant member (6) that resets decline, the buoyant member that resets (6) press piston (10) to move horizontally, and it is in the opposite direction that direction that the buoyant member that resets (6) pressure piston (10) moves horizontally and brake buoyant member (5) pressure piston (10) move horizontally.
CN 201210298569 2012-08-11 2012-08-11 Magnetofluid vehicle brake Pending CN102817941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210298569 CN102817941A (en) 2012-08-11 2012-08-11 Magnetofluid vehicle brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210298569 CN102817941A (en) 2012-08-11 2012-08-11 Magnetofluid vehicle brake

Publications (1)

Publication Number Publication Date
CN102817941A true CN102817941A (en) 2012-12-12

Family

ID=47302279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201210298569 Pending CN102817941A (en) 2012-08-11 2012-08-11 Magnetofluid vehicle brake

Country Status (1)

Country Link
CN (1) CN102817941A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511545A (en) * 2013-10-11 2014-01-15 郑运婷 Magnetofluid suspension moving platform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511545A (en) * 2013-10-11 2014-01-15 郑运婷 Magnetofluid suspension moving platform
CN103511545B (en) * 2013-10-11 2015-07-01 郑运婷 Magnetofluid suspension moving platform

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121212

C02 Deemed withdrawal of patent application after publication (patent law 2001)