CN2093922U - Magnetic clutch - Google Patents
Magnetic clutch Download PDFInfo
- Publication number
- CN2093922U CN2093922U CN 90208111 CN90208111U CN2093922U CN 2093922 U CN2093922 U CN 2093922U CN 90208111 CN90208111 CN 90208111 CN 90208111 U CN90208111 U CN 90208111U CN 2093922 U CN2093922 U CN 2093922U
- Authority
- CN
- China
- Prior art keywords
- magnetic sheet
- driven shaft
- magnetic
- driving shaft
- clutch
- 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.)
- Withdrawn
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 83
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
A magnetic clutch is composed of drive and driven shafts concentric with each other, control magnetic sheets able to swing around axle center, the drive and driven magnetic sheets alternatively arranged on said drive and driven shafts, symmetrical axle, hydraulic swing motor with control magnetic sheets as swing axle, cylinder body on the internal circumference wall of driven shaft, guide ring on casing, and guide ring matched with pulley of driven shaft.
Description
The utility model relates to the engaging and disengaging gear of master and slave moving part in the mechanical transmission, belongs to field of mechanical technique.
Clutch at present commonly used has jaw clutch, engagement sleeve, friction clutch, centrifugal clutch, surmount device closes device, magnetic clutch etc.Jaw clutch and engagement sleeve by the engagement tooth, the flank of tooth come transmitting torque, shortcoming be in conjunction with the time impulsion is arranged, need under the very low situation of relative velocity, carry out.Friction clutch is the frictional force transmitting torque by surface of contact; combination can be in operation; the safety protection effect of can having skidded during overload; but need bigger axial combination force; and to often adjust the gap of rubbing surface, and with compensate for wear, rubbing surface slide relative loss power; under the frequent situation of working, heating problem is difficult to solve.Free wheel device, transmitting torque is less.Magnetic clutch, the disengagement time is longer, needs DC power-supply system.
The purpose of this utility model provides a kind of nothing and impacts, generates heat, weares and teares the magnetic clutch that transmitting torque is bigger.
The purpose of this utility model is achieved in that as Fig. 1, magnetic clutch is provided with driving shaft 2, driven shaft 10, hydraulic pressure rotary actuator 6, shell 11 and magnetic sheet etc., driving shaft is concentric with driven shaft, be respectively equipped with on it and (comprise two) more than two and have many magnetic sheets (be called for short N to) magnetic pole, the mutual difference of the magnetic sheet that driving shaft and moving axis are established is one, the magnetic sheet that diaxon is established adds up to odd number, being provided with in the magnetic sheet can be around the control magnetic sheet of axis swing, and control magnetic sheet number is that the magnetic sheet sum subtracts one divided by four.Establish magnetic sheet 4,8 on the driving shaft 2, claim the driving shaft magnetic sheet, the magnetic sheet 3,5,9 from driving shaft 10 is established claims the driven shaft magnetic sheet.The driving shaft magnetic sheet is alternate with the driven shaft magnetic sheet to be interted, and axially-aligned is a symmetry axis with magnetic sheet arrangement center.Hydraulic pressure rotary actuator 6 is a balance staff with the control magnetic sheet, is made of cylinder body and guide ring etc., and cylinder body is located on driven shaft 10 circumferential inner walls, and guide ring is located on the shell 11 and slides with driven shaft.
Has conservative energy according to magnetic field, attraction force that has between magnetic pole or repulsive force need not can directly produce the principle of active force by any instrumentality by the material of all non-superconducting states, make driving part drive the driven member running, its carry-over moment Basic calculation method is known from theoretical mechanics: one tie up to the power of a certain direction or moment equal this direction can degree of passing, can be expressed as:
Tk＝ (αW)/(αθi)
T
Always---mechanism transmits resultant couple.
Tk---transfer function is in the moment of θ direction between magnetic sheet.
K---the magnetic sheet sum subtracts one.
The energy of W---system.
θ---i direction angle of rotation.
The magnet active force formula that forms between driving part and driven member is:
K---the magnetic sheet sum subtracts one.
R---pole pitch between two magnetic sheets.(each magnetic pole distance of the utility model magnetic clutch is from equating.）
μ 0---absolute permeability of vacuum.
Qm
1.Qm
2---pole strength (pole strength of each magnetic pole of the present utility model equates)
Qm
1.Qm
2Just be, driving shaft is extremely relative with N with N on the driven shaft magnetic sheet, and S is extremely relative with S, is repulsive force, is negative value.
As Qm
1, Qm
2Be one positive one negative, just N is extremely relative with S, is attraction force, on the occasion of.From Coulomb's law as can be known, repulsive force numerically equates with attraction force.
As Fig. 1,2,6, gear pump 15 is oil pumping from fuel tank 17 under the driving force of motor 16, adjust to authorized pressure through relief valve 13, in pressure gauge 14, show and be stabilized under the situation of this pressure, solenoid directional control valve 12 can change pressure oil and oil return direction, the swaying direction of control rotary actuator 6 and control magnetic sheet.
When oily flow path direction as shown in Figure 1 the time, oil stream enters oil cylinder by guide ring through three oilholes among Fig. 6, and balance staff is promptly controlled magnetic sheet rotation π/n radian under the effect of pressure oil, and oil return is flowed out through guide ring from other three oilholes. Magnetic sheet 3 and 4,4 and 5,5 and 8,8 and 9 is all as Fig. 5, and N is extremely relative with S, is attraction force, be on the occasion of, the magnetic sheet sum is 5, so its active force of k=5-1=4
, driving shaft magnetic sheet and driven shaft magnetic sheet are in the attraction bonding state, and driving shaft drives driven shaft running work.
Change oily flow path direction by solenoid directional control valve 12, as Fig. 3, Fig. 7, former filler opening is changed into oil outlet, and oil outlet changes over filler opening, and oily stream passes through guide ring among Fig. 7, enter oil cylinder through three oilholes, balance staff is promptly controlled magnetic sheet to opposite spin π/n radian under pressure, and oil return is flowed out through guide ring from other three oilholes, magnetic sheet 3 and 4,8 and 9, as shown in Figure 5, N is extremely relative with S, is attraction force, on the occasion of
, magnetic sheet 4 and 5,5 and 8 as shown in Figure 4, N is extremely relative with N, S is extremely relative with S, is repulsive force, negative value,
, then total force is
So driving shaft magnetic sheet and driven shaft magnetic sheet force balance each other, driving shaft and driven shaft are in clutch state, and driving shaft can not drive driven shaft running work.
The utility model novel structure, compact and reasonable, manufacturing process is simple, uses easy to operately, do not have to impact, vibration, phenomenons such as noise, heating, wearing and tearing, high working efficiency, long service life can be widely used in mechanical transmission fields.
Accompanying drawing 1,3 is the utility model magnetic clutch structural representation, 1 non-magnet material protective coating among the figure, 2 driving shafts, 3,5,9 driven shaft magnetic sheets, 6 hydraulic pressure rotary actuators, 7 guide rings, 4,8 driving shaft magnetic sheets, 10 driven shafts, 11 shells.
Accompanying drawing 4,5 is a magnetic sheet structural representation of the present utility model.
Accompanying drawing 6,7 is the structural representation of control magnetic sheet of the present utility model and hydraulic pressure rotary actuator, 5 control magnetic sheets among the figure, 7 guide rings, 18 cylinder bodies.
Narrate case study on implementation of the present utility model with reference to the accompanying drawings.
Claims (2)
1, a kind of magnetic clutch, it is characterized in that being provided with in the clutch driving shaft, driven shaft, hydraulic pressure rotary actuator, magnetic sheet and shell, driving shaft is concentric with driven shaft, magnetic sheet is located at respectively on the master and slave moving axis, being provided with in the magnetic sheet can be around the control magnetic sheet of axis swing, the alternate interspersed arrangement of driving shaft magnetic sheet with the driven shaft magnetic sheet, with magnetic sheet arrangement center is symmetry axis, the hydraulic pressure rotary actuator is a balance staff with the control magnetic sheet, cylinder body is located on the driven shaft inner peripheral wall, and guide ring is located on the shell, and guide ring and driven shaft are slidingly matched.
2, clutch according to claim 1 is characterized in that the odd number that adds up to of said magnetic sheet, and the mutual difference of driving shaft magnetic sheet and driven shaft magnetic sheet is one, and every magnetic sheet is provided with many to magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208111 CN2093922U (en) | 1990-06-01 | 1990-06-01 | Magnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208111 CN2093922U (en) | 1990-06-01 | 1990-06-01 | Magnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093922U true CN2093922U (en) | 1992-01-22 |
Family
ID=4888427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90208111 Withdrawn CN2093922U (en) | 1990-06-01 | 1990-06-01 | Magnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093922U (en) |
-
1990
- 1990-06-01 CN CN 90208111 patent/CN2093922U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |