CN101340136A

CN101340136A - Braking type magnetic clutch

Info

Publication number: CN101340136A
Application number: CNA2007101229215A
Authority: CN
Inventors: 刘新广
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-04
Filing date: 2007-07-04
Publication date: 2009-01-07

Abstract

The invention relates to a magnetic brake clutch, comprising a driving wheel, a driven wheel, a stator, a brake and a control system; wherein, the driving wheel is made of magnetic conductive material or permanent magnetic material or made by the combination of permanent magnetic material and magnetic conductive material, and is connected with a power input shaft; the driven wheel comprises a magnetizer or a combination of permanent magnetic material and magnetic conductive material and a driven shaft; the stator comprises a coil, an end-plate with a bearing and an adapter cylinder connected with the end-plate; the control system comprises a rectifier voltage regulator, a battery, a controller and a control node. The coil is bonded when power is lost, separated when power is off. When the coil is separated, the controller controls the brake to brake the driven shaft, and while running the brake generates external power. When the coil is deenergized, permanent magnetic force leads the driving wheel and the driven wheel to be coupled. The magnetic brake clutch has the advantages of quick operation, environmental protection, and little maintenance, long service life, particularly being suitable for the condition that a driven mechanism and a power source are always bonded but separated for a while, and can be used as a common clutch or an automobile clutch.

Description

Braking type magnetic clutch

Technical field

The present invention relates to Clutch Technology, particularly a kind of braking type magnetic clutch.

Background technology

Clutch is a kind of device that cuts off and connect drive source and driven-mechanism.Traditional clutch has mechanical type and electromagnetic type.The machinery throw-out clutch, the outer mechanical force (need utilize hydraulic coupling to large-scale clutch) that adds realizes separating, and realize engaging by spring pressure pressing friction sheet, and the clutch process is longer, and incompatibility is used for automatic control engineering.This clutch is in the clutch process, and the mutual friction energy-dissipating of friction plate is given birth to heat, and friction plate is fragile.Existing electromagnetic clutch engages with electromagnetic force, separates with the cut spring pulling force, and actuating speed is fast, can adapt to and be used for automatic control engineering, and not have frictional dissipation.But existing electromagnetic clutch is at engagement state, and its coil must keep energising, so power consumption, what have also continues to power up by brush and collecting ring, and hot magnetisation is given birth in power consumption, contaminated environment, and its solenoid is heated fragile.

Summary of the invention

The present invention designs a kind of magnetic gear with braking function, overcomes the defective of existing machinery clutch and electromagnetic clutch, has also increased braking function, and this clutch energy consumption is little, and electromagnetic pollution is minimum, thereby purposes is wide.

The present invention realizes by following technical scheme.

The present invention is made of driving wheel, driven pulley, stator, brake, control system group.Driving wheel is made of permeability magnetic material or of permanent magnetic material and permeability magnetic material combination, and connects with power input rotating shaft; Driven pulley is made up of the assembly and the driven spindle of magnetic conductor or permanent magnetic material and permeability magnetic material; Stator is made up of the connecting cylinder of coil, the end plate that bearing is installed and connection end plate; Control system is made up of rectification voltage regulator, storage battery, controller, Control Node.Brake is a magneto, and its rotor connects with driven spindle.Described clutch, the principal and subordinate takes turns septal space and keeps coupling by permanent magnetism power according to the magnetic resistance principle, give coil electricity by controller, the electromagnetic force resistance permanent magnetism power that produces makes the principal and subordinate take turns separation, when separating, also can brake the driven spindle of this clutch, externally generate electricity during brake work (braking) by controller control brake device; Coil blackout, permanent magnetism power makes the principal and subordinate take turns coupling.Clutch of the present invention is particularly suitable for driven-mechanism and separates ofer short duration operating mode with the normal combination of power source, as makes automobile clutch usefulness, also can make ordinary clutch and use.

Compare with existing electromagnetic clutch magnetic, the present invention has following advantage:

1. close, from easy and simple to handle rapidly, the reliability height can be applicable to automation engineering well.

2. principal and subordinate wheel is separated with the gap and does not contact, and has overload slippage defencive function, engages and does not have friction when separating, and does not give birth to heat.

3. try hard to keep when holding engagement state according to permanent magnetism, do not consume energy.

4. make throw-out clutch, disengaging time is short in actual applications, thereby it is little to consume energy.

5. coil stationary is motionless, and power supply does not need brush and collecting ring.

6. clutch disengage process is utilized braking motor braking and generating, kills two birds with one stone.

7. pollute minimum.

8. few safeguard, the life-span is long.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention one;

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the structural representation of embodiment two;

Fig. 4 is the structural representation of embodiment three.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

Embodiment one: show as Fig. 1 Fig. 2.The present invention is made of driving wheel, driven pulley, stator, brake and control system.Driving wheel is made up of permanent magnetism dish 2, magnetic conductor 6, magnetic conductor 7, non magnetic coupling tunnel 8 and 5 connections of non magnetic driving shaft of axial charging, and the periphery of magnetic conductor 6 and magnetic conductor 7 is evenly equipped with sector; Driven pulley is made up of permanent magnetism circle 22, magnetic conductive cylinder 1, non magnetic disk 12, non

magnetic coupling tunnel

21 and 14 connections of non magnetic driven shaft of axial charging, and the inner wall even distribution of magnetic conductive cylinder 1 has the radially relative sector of sector with magnetic conductor 6 or magnetic conductor 7; Stator is formed by non magnetic end plate 3 and 20, bearing 4 and 13, coil 10 and

bobbin

9 and 11 connections of non magnetic coupling tunnel; The coaxial assembling of driving wheel, driven pulley and stator, permanent magnetism dish 2 is connected in series with permanent magnetism circle 22 opposite poles, and the equal each other external series gap of driving wheel, driven pulley and stator three does not contact; Brake 19 is a magneto, its armature spindle and 14 coaxial connections of driven shaft, the rotor of this generator is made of the rotor block with permanent magnetism that rotating shaft and pure p-m rotor body or permanent magnetic material and other combination of materials form, stator is made up of iron core and coil windings thereof and stator casing, when the p-m rotor body rotates, produce induced electromotive force in the stator coil winding, if the I/O of coil windings is connected, make the coil closure, the induction electric that produces will definitely form induced current, according to Lenz's law, the magnetic field that induced current produces will stop the rotation of p-m rotor body, and brake 19 is in work (braking) state, if the I/O of coil windings is separated, no current in the coil windings does not just have induction field naturally, and brake 19 just is in non operating state; Control system is made of the Control Node 16 and the connection lead of rectification voltage regulator 18, storage battery 17, controller 15, controller 15, and coil 10 via controllers 15 are from storage battery 17 power takings.Dotted line I represents flux circuit among Fig. 1.The shell of stator and brake 19 is fixed in the equipment of this clutch of use or the basis of mechanism.The quantity of the sector on described driving wheel, the driven pulley requires design to determine according to reality.

Operation principle: when coil 10 is not switched on, dotted line I has represented the permanent magnet flux loop among Fig. 1, according to the magnetic resistance principle, passes the magnetic line of force in crack between the driven pulley, avoid fan groove, focus on sector, when driving wheel turned over an angle (angular displacement) with respect to driven pulley, the magnetic line of force still made great efforts to avoid fan groove, focus on sector, the result produces drag torque to driven pulley, forces driven pulley to follow driving wheel and rotates, and described clutch is in the state of closing; Operation control 15, give coil 10 energisings, its flux circuit is still shown as dotted line I among Fig. 1, but direction is opposite with the logical direction of permanent magnetism, electromagnetic field is offset the magnetic field of permanent magnetism dish 2 and permanent magnetism circle 22, does not have magneticaction between driving wheel and the driven pulley, and driven pulley is static, driving wheel idle running, described clutch is in from state; When controller 15 was given coil 10 energisings, closed its Control Node 16 made 19 pairs of driven shafts of brake 14 produce brake torque, and outwards generating simultaneously is by 17 chargings of rectification voltage regulator 18 accumulators.During brake 19 work, energy output is limited, and is needed when operated clutch is separated inadequately, should be from described clutch system external complement electric energy accumulators 17.

Embodiment two: show as Fig. 3.To embodiment one described clutch, only the cylinder that permanent magnetism circle 22 and magnetic conductive cylinder 1 are formed makes the cylinder 23 made with permeability magnetic material into, its shape and size are identical with the former, satisfying under the clutch performance requirement condition, do the energy simplified structure like this, reduce cost, improve the high-temperature adaptability of driving wheel.

Embodiment three: show as Fig. 4.To embodiment one described clutch, assembly with permanent magnetism dish 2, magnetic conductor 6, magnetic conductor 7 and non magnetic coupling tunnel 8 compositions, make the magnetic conductor 24 made with permeability magnetic material into, its shape and size are identical with the former, satisfying under the clutch performance requirement condition, do the energy simplified structure like this, reduce cost, improve the high-temperature adaptability of driving wheel.

Embodiment four: to embodiment one to three described clutch, if be used for not needing to separate the operating mode of time braking driven shaft 14, remove brake 19, rectification voltage regulator 17, storage battery 18, external power source access controller 15.

Claims

1. a braking type magnetic clutch is characterized in that: be made of driving wheel, driven pulley, stator, brake, control system group; Driving wheel is made of permeability magnetic material or of permanent magnetic material and permeability magnetic material combination, and connects with power input rotating shaft; Driven pulley is made up of the assembly and the driven spindle of magnetic conductor or permanent magnetic material and permeability magnetic material; Stator is made up of the connecting cylinder of coil, the end plate that bearing is installed and connection end plate; Control system is made up of rectification voltage regulator, storage battery, controller, Control Node; Brake is a magneto, and its rotor connects with driven spindle.

2. braking type magnetic clutch according to claim 1 is characterized in that: be made of driving wheel, driven pulley, stator, brake and control system; Driving wheel is made up of permanent magnetism dish (2), magnetic conductor (6), magnetic conductor (7), non magnetic coupling tunnel (8) and non magnetic driving shaft (5) connection of axial charging, and the periphery of magnetic conductor (6) and magnetic conductor (7) is evenly equipped with sector; Driven pulley is made up of permanent magnetism circle (22), magnetic conductive cylinder (1), non magnetic disk (12), non magnetic coupling tunnel (21) and non magnetic driven shaft (14) connection of axial charging, and the inner wall even distribution of magnetic conductive cylinder (1) has the radially relative sector of sector with magnetic conductor (6) or magnetic conductor (7); Stator is connected by non magnetic end plate (3) and (20), bearing (4) and (13), coil (10) and bobbin (9) and non magnetic coupling tunnel (11) and forms; The coaxial assembling of driving wheel, driven pulley and stator, permanent magnetism dish (2) is connected in series with permanent magnetism circle (22) opposite pole, and the equal each other external series gap of driving wheel, driven pulley and stator three does not contact; Brake (19) is a magneto, its armature spindle and coaxial connection of driven shaft (14), control system is made of the Control Node (16) and the connection lead of rectification voltage regulator (18), storage battery (17), controller (15), controller (15), and coil (10) via controller (15) is from storage battery (17) power taking; The shell of stator and brake (19) is fixed in the equipment of this clutch of use or the basis of mechanism; The quantity of the sector on described driving wheel, the driven pulley requires design to determine according to reality.

3. braking type magnetic clutch according to claim 1 and 2 is characterized in that: to its described clutch, only the cylinder that permanent magnetism circle (22) and magnetic conductive cylinder (1) are formed makes the cylinder (23) made with permeability magnetic material, its shape and big or small identical with the former into.

4. braking type magnetic clutch according to claim 1 and 2, it is characterized in that: a assembly permanent magnetism dish (2), magnetic conductor (6), magnetic conductor (7) and non magnetic coupling tunnel (8) composition, make the magnetic conductor (24) made with permeability magnetic material into, its shape and size are identical with the former.

5. according to each described braking type magnetic clutch among the claim 1-4, it is characterized in that: if be used for not needing to separate the operating mode of time braking driven shaft (14), remove brake (19), rectification voltage regulator (17), storage battery (18), external power source access controller (15).