CN110266177A - A kind of magnetic shaft coupling - Google Patents
A kind of magnetic shaft coupling Download PDFInfo
- Publication number
- CN110266177A CN110266177A CN201910545615.5A CN201910545615A CN110266177A CN 110266177 A CN110266177 A CN 110266177A CN 201910545615 A CN201910545615 A CN 201910545615A CN 110266177 A CN110266177 A CN 110266177A
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- China
- Prior art keywords
- coupler
- card
- elastic
- movable plate
- slot
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention belongs to shaft coupling technical field, specifically a kind of magnetic shaft coupling；Including left half a coupler, right half a coupler and connection unit；Left half a coupler and driven shaft are connected, and right half a coupler and driving shaft are connected, and left half a coupler is connect by connection unit with right half a coupler；Connection unit is circumferentially distributed along the outer ring of left half a coupler, and connection unit includes permanent magnet, movable plate and card column；The present invention passes through the mutual cooperation between permanent magnet, right half a coupler, left half a coupler, magnetic fluid, movable plate and card column, it is driven in right half a coupler rotation in driving shaft, the closed circuit in magnetic field is formed between permanent magnet, right half a coupler and left half a coupler, so that magnetic fluid moves in the groove on left half a coupler, movable plate is pushed to realize the rotation of driven shaft so that card column snaps onto card slot, and the transmitting of vibration is reduced, improve the service life of prime mover.
Description
Technical field
The invention belongs to shaft coupling technical field, specifically a kind of magnetic shaft coupling.
Background technique
Shaft coupling refers to two axis of connection or axis and revolving meber, turns round together in passing movement and dynamic process, normal
In the case of a kind of device for not disengaging.For by different institutions driving shaft and driven shaft link up revolve together securely
Turn, and the mechanical part of passing movement and torque.It is often semi-synthetic by two, respectively with the connection such as key or tight fit, it is fastened on two axis
End, then linked up two halves by certain mode.
Some equipment can generate biggish impact force when transmitting torque at present, cannot use positive coupling, therefore this
Class equipment generallys use balata belt as shaft coupling transmission torque, but such Coupling Life is short, maintenance is frequent, no
Be able to satisfy impact force biggish transmission requirement, at the same current flexible clutch prime mover can be brought in equipment stall it is fatal
Injury, causes biggish security risk and property loss, so that the technical solution is restricted.
Summary of the invention
In order to make up for the deficiencies of the prior art, to solve the problems, such as described in background technique, the invention proposes a kind of magnetic
Property shaft coupling.
The technical solution adopted by the present invention to solve the technical problems is: a kind of magnetic shaft coupling of the present invention, packet
Include left half a coupler, right half a coupler and connection unit；The left half a coupler and driven shaft are connected, right half a coupler and active
Axis is connected, and left half a coupler is connect by connection unit with right half a coupler；The connection unit is along the outer of left half a coupler
Circle is circumferentially distributed, and connection unit includes permanent magnet, movable plate and card column；The movable plate is located at recessed on left half a coupler
In slot, the region of movable plate side and groove formation is provided with magnetic fluid, and the movable plate other side is connect with card column；Described right half joins
Axis device is equipped with card slot；The permanent magnet is mounted in the groove on right half a coupler, and the groove is located at the top of card slot；
When driving shaft drives the operating of right half a coupler, by the mutual cooperation between permanent magnet and magnetic fluid, movable plate is pushed, so that
Card column snaps onto card slot, realizes the smooth rotation of left half a coupler；When using shaft coupling of the invention, firstly, driving shaft
Right half a coupler is driven to rotate, the permanent magnet in right half a coupler moves in a circle, and the magnetic current in left half a coupler groove
Body is opposing stationary, when forming the closed circuit in magnetic field between permanent magnet, right half a coupler and left half a coupler, copies magnetic fluid
Sealing principle, at this point, the magnetic fluid in left half a coupler groove can be made to become moving from static, the magnetic fluid of movement is acted on
Movable plate pushes movable plate to move to the side close to right half a coupler, so that card column smoothly snaps onto right half shaft coupling
In card slot on device, the connection between right half a coupler and left half a coupler is realized, thus the transmitting that power is smooth from driving shaft
Onto driven shaft, the transmitting of vibration is reduced, protects the safety of working machine, is reduced because the anomalous rotation of working machine is to prime mover revolving speed
Influence, avoid because working machine abnormal conditions stall caused by prime mover it is stuck, cause prime mover damage etc. security risks, mention
The service life of high prime mover.
Preferably, elastic card female connector is installed in the card slot；The cross sectional shape of the elastic card female connector be four finger-types, two
The equal length that side refers to, and it is greater than the length that middle part refers to；The end of the card column is equipped with snap ring；The cross sectional shape of the snap ring with
The shape of elastic card female connector matches, and by the mutual cooperation between elastic card female connector and snap ring, realizes that card column steadily snaps onto card
In slot；The present invention is avoided card column when snapping onto card slot, is shaken by setting elastic card female connector and snap ring, is influenced actively
The transmission of power on axis, to improve the stationarity of power transmitting；During card column snaps onto card slot, at card slot
Equipped with elastic card female connector, the collision between card column and card slot is slowed down, card column is avoided to shake；Meanwhile four finger-type elastic card
Female connector closely wraps up snap ring, avoids the motive force due to magnetic fluid insufficient, so that card column return, influences the transmitting of power,
To improve the practicability of the shaft coupling.
Preferably, elastic card female connector two sides, which refer to, is equipped with elastic pushing block at position；No.1 is symmetrically arranged on the snap ring
Channel；The gas generated when being cooperated by elastic card female connector and snap ring acts on elastic pushing block, so that elastic pushing block snaps onto one
In number channel, shaking when transmission is avoided；The present invention passes through such design, on the one hand, by four finger-type flexible clamping of retainer ring presses
The gas generated when set is utilized, and the waste of the gas resource is avoided, to improve the utilization rate of resource；On the other hand,
Using the gas elastic pushing block is pushed into No.1 channel, so that elastic card female connector is connect with snap ring, further decreases dynamic
Power is shaken when transmitting, to improve the practicability of the shaft coupling.
Preferably, the side a of the elastic pushing block is equipped with one group of through slot, and the quantity of through slot is at least three, the b of elastic pushing block
Side is equipped with one group of fixture block, and fixture block and through slot cooperate, and fixture block side is connected in the side b of elastic pushing block by spring, another
Side snaps onto through slot；The present invention is by such design, when elastic pushing block is inserted into No.1 channel, at the side elastic pushing block b
Fixture block is inserted into the through slot at elastic pushing block a, avoids the rebound of elastic pushing block, so that power shakes when transmitting, thus
Improve the practicability of the shaft coupling.
Preferably, No.1 pushing block is symmetrically arranged on each fixture block；No.1 pushing block side is connected in by spring
In the groove of fixture block, under original state, No.1 pushing block is located in the groove of fixture block；No.1 pushing block is released by spring, is reduced
Through slot gap；When the fixture block of the side elastic pushing block b snaps onto the through slot of the side elastic pushing block a, at this point, control No.1 pushing block pushes away
Out, the gap in through slot is reduced, avoids forming negative pressure in empty slot, so that fixture block resets, shaking when power being caused to transmit, thus
Improve the practicability of the shaft coupling.
Preferably, it is symmetrically arranged with elastic slice above the movable plate, the fixation to movable Board position is realized by elastic slice；This
Invention passes through setting elastic slice, when magnetic fluid acts on so that movable plate is moved to the side close to right half a coupler, movable plate meeting
Extrusion elastic, so that elastic slice deforms, the elastic slice of deformation forms M shape, and the position of movable plate is fixed, and avoids due to magnetic current
The motive force of body is insufficient, causes card column to be detached from card slot, the transmitting of power is influenced, to improve the practicability of the shaft coupling.
Driving shaft drives right half a coupler rotation, and the permanent magnet in right half a coupler moves in a circle, and left half shaft coupling
Magnetic fluid in device groove is opposing stationary, and the closure that magnetic field is formed between permanent magnet, right half a coupler and left half a coupler is returned
Lu Shi copies magnet fluid sealing principle, at this point, the magnetic fluid in left half a coupler groove can be made to become moving from static, transports
Dynamic magnetic fluid acts on movable plate, pushes movable plate to move to the side close to right half a coupler, so that card column is steady
The card slot snapped on right half a coupler in, realize the connection between right half a coupler and left half a coupler, thus by power from
Driving shaft is smooth to be transmitted on driven shaft, is reduced the transmitting of vibration, is protected the safety of working machine, reduces the exception because of working machine
The influence to prime mover revolving speed is rotated, avoids prime mover because caused by stalling working machine abnormal conditions stuck, causes prime mover
The security risks such as damage, improve the service life of prime mover.
Beneficial effects of the present invention are as follows:
1. a kind of magnetic shaft coupling of the present invention passes through permanent magnet, right half a coupler, left half a coupler, magnetic current
Mutual cooperation between body, movable plate and card column drives in right half a coupler rotation, permanent magnet, right half a coupler in driving shaft
The closed circuit in magnetic field is formed between left half a coupler, so that magnetic fluid moves in the groove on left half a coupler, is pushed and is lived
Movable plate realizes the rotation of driven shaft, and reduce the transmitting of vibration, improves the longevity of prime mover so that card column snaps onto card slot
Life.
2. a kind of magnetic shaft coupling of the present invention, by the way that elastic slice is arranged, in movable plate extrusion elastic, so that elastic slice
The elastic slice of deformation, deformation forms M shape, and the position of movable plate is fixed, and avoids the motive force due to magnetic fluid insufficient, makes
It is detached from card slot at card column, the transmitting of power is influenced, to improve the practicability of the shaft coupling.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is stereoscopic schematic diagram of the invention；
Fig. 2 is floor map of the invention；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Fig. 4 is the partial enlarged view in Fig. 3 at B；
Fig. 5 is the partial enlarged view in Fig. 4 at C；
Fig. 6 is the partial enlarged view in Fig. 5 at D；
In figure: left half a coupler 1, right half a coupler 2, card slot 21, elastic card female connector 22, elastic pushing block 23, through slot 231,
Fixture block 232, No.1 pushing block 233, connection unit 3, permanent magnet 31, movable plate 32, elastic slice 321, card column 33, magnetic fluid 34, card
Ring 35, No.1 channel 341.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figures 1 to 6, a kind of magnetic shaft coupling of the present invention, including left half a coupler 1, right half a coupler 2
With connection unit 3；The left half a coupler 1 is connected with driven shaft, and right half a coupler 2 is connected with driving shaft, and left half a coupler 1
It is connect by connection unit 3 with right half a coupler 2；The connection unit 3 is circumferentially distributed along the outer ring of left half a coupler 1, even
Order member 3 includes permanent magnet 31, movable plate 32 and card column 33；The movable plate 32 is located in the groove on left half a coupler 1,
The region that 32 side of movable plate and groove are formed is provided with magnetic fluid 34, and 32 other side of movable plate is connect with card column 33；The right side
Half a coupler 2 is equipped with card slot 21；The permanent magnet 31 is mounted in the groove on right half a coupler 2, and the groove is located at
The top of card slot 21；When driving shaft drives the operating of right half a coupler 2, pass through the phase interworking between permanent magnet 31 and magnetic fluid 34
It closes, movable plate 32 is pushed to realize the smooth rotation of left half a coupler 1 so that card column 33 snaps onto card slot 21；Using this hair
When bright shaft coupling, firstly, driving shaft drives right half a coupler 2 to rotate, the permanent magnet 31 in right half a coupler 2 does circumference fortune
It is dynamic, and the magnetic fluid 34 in 1 groove of left half a coupler is opposing stationary, in permanent magnet 31, right half a coupler 2 and left half a coupler
When forming the closed circuit in magnetic field between 1,34 sealing principle of magnetic fluid is copied, at this point, the magnetic in left 1 groove of half a coupler can be made
Fluid 34 is become moving from static, and the magnetic fluid 34 of movement acts on movable plate 32, pushes movable plate 32 to close to right half shaft coupling
The side of device 2 moves, so that card column 33 smoothly snaps onto the card slot 21 on right half a coupler 2, realizes right half shaft coupling
Connection between device 2 and left half a coupler 1 reduces the biography of vibration so that power is transmitted on driven shaft from driving shaft is smooth
It passs, protects the safety of working machine, reduce influence of the anomalous rotation because of working machine to prime mover revolving speed, avoid because of working machine exception
Prime mover caused by situation stalling is stuck, causes the security risks such as prime mover damage, improves the service life of prime mover.
As one embodiment of the present invention, elastic card female connector 22 is installed in the card slot 21；The flexible clamping
The cross sectional shape of set 22 is four finger-types, the equal length that two sides refer to, and the length referred to greater than middle part；The end of the card column 33 is set
There is snap ring 35；The cross sectional shape of the snap ring 35 is matched with the shape of elastic card female connector 22, passes through elastic card female connector 22 and card
Mutual cooperation between ring 35 realizes that card column 33 steadily snaps onto card slot 21；The present invention passes through setting elastic card female connector 22 and card
Ring 35 avoids card column 33 when snapping onto card slot 21, shakes, and influences the transmission of power on driving shaft, to improve dynamic
The stationarity of power transmitting；During card column 33 snaps onto card slot 21, due to being equipped with elastic card female connector 22 at card slot 21, slow down
Collision between card column 33 and card slot 21, avoids card column 33 from shaking；Meanwhile four finger-type elastic card female connector 22 by snap ring 35
Closely package avoids the motive force due to magnetic fluid 34 insufficient, so that 33 return of card column, influences the transmitting of power, to mention
The high practicability of the shaft coupling.
As one embodiment of the present invention, 22 two sides of elastic card female connector, which refer to, is equipped with elastic pushing block 23 at position；
No.1 channel 341 is symmetrically arranged on the snap ring 35；The gas generated when being cooperated by elastic card female connector 22 and snap ring 35 acts on
Shaking when transmission is avoided so that elastic pushing block 23 snaps onto No.1 channel 341 in elastic pushing block 23；The present invention passes through this
Kind design, on the one hand, the gas generated when snap ring 35 is squeezed four finger-type elastic card female connectors 22 utilizes, and the gas is avoided to provide
The waste in source, to improve the utilization rate of resource；On the other hand, elastic pushing block 23 is made to be pushed into one number service using the gas
In road 341, so that elastic card female connector 22 is connect with snap ring 35, shaking when further decreasing power transmitting, to improve the connection
The practicability of axis device.
As one embodiment of the present invention, the side a of the elasticity pushing block 23 is equipped with one group of through slot 231, and through slot 231
Quantity be at least three, the side b of elastic pushing block 23 is equipped with one group of fixture block 232, and fixture block 232 and through slot 231 cooperate, and fixture block
232 sides are connected in the side b of elastic pushing block 23 by spring, and the other side snaps onto through slot 231；The present invention is set by such
Meter, when elastic pushing block 23 is inserted into No.1 channel 341, the fixture block 232 at the side elastic pushing block 23b is inserted into elastic pushing block 23a
In the through slot 231 at place, the rebound of elastic pushing block 23 is avoided, so that power shakes when transmitting, to improve the shaft coupling
Practicability.
As one embodiment of the present invention, No.1 pushing block 233 is symmetrically arranged on each fixture block 232；Described one
Number 233 side of pushing block is connected in the groove of fixture block 232 by spring, and under original state, No.1 pushing block 233 is located at fixture block 232
Groove in；No.1 pushing block 233 is released by spring, reduces 231 gap of through slot；When the fixture block 232 of the side elastic pushing block 23b blocks
When entering into the through slot 231 of the side elastic pushing block 23a, at this point, control No.1 pushing block 233 is released, the gap in through slot 231 is reduced,
It avoids forming negative pressure in empty slot, so that fixture block 232 resets, shaking when power being caused to transmit, to improve the shaft coupling
Practicability.
As one embodiment of the present invention, the top of the movable plate 32 is symmetrically arranged with elastic slice 321, passes through elastic slice
321 realize the fixation to 32 position of movable plate；The present invention is by setting elastic slice 321, when magnetic fluid 34 acts on so that movable plate 32
When being moved to the side close to right half a coupler 2, the meeting extrusion elastic 321 of movable plate 32, so that elastic slice 321 deforms, the bullet of deformation
Piece 321 forms M shape, and the position of movable plate 32 is fixed, and avoids the motive force due to magnetic fluid 34 insufficient, causes card column
33 are detached from card slot 21, the transmitting of power are influenced, to improve the practicability of the shaft coupling.
When work, firstly, driving shaft drives right half a coupler 2 to rotate, the permanent magnet 31 in right half a coupler 2 does circumference
Movement, and the magnetic fluid 34 in 1 groove of left half a coupler is opposing stationary, in permanent magnet 31, right half a coupler 2 and left half shaft coupling
When forming the closed circuit in magnetic field between device 1,34 sealing principle of magnetic fluid is copied, at this point, can make in left 1 groove of half a coupler
Magnetic fluid 34 is become moving from static, and the magnetic fluid 34 of movement acts on movable plate 32, and movable plate 32 is pushed to join to close to right half
The side of axis device 2 moves, so that card column 33 smoothly snaps onto the card slot 21 on right half a coupler 2, realizes that right half joins
Connection between axis device 2 and left half a coupler 1 reduces vibration so that power is transmitted on driven shaft from driving shaft is smooth
Transmitting, protects the safety of working machine, reduces influence of the anomalous rotation because of working machine to prime mover revolving speed, avoids because working machine is different
Prime mover caused by the stalling of reason condition is stuck, causes the security risks such as prime mover damage, improves the service life of prime mover.
Above-mentioned front, back, left, right, up, down is mark according to personage's observation visual angle on the basis of Fig. 1 in Figure of description
Standard, device surface are defined as a left side on the left of observer to before being defined as on one side of observer, and so on.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
The limitation of range.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of magnetic shaft coupling, it is characterised in that: including left half a coupler (1), right half a coupler (2) and connection unit (3)；
The left half a coupler (1) and driven shaft are connected, and right half a coupler (2) and driving shaft are connected, and left half a coupler (1) passes through company
Order member (3) is connect with right half a coupler (2)；The connection unit (3) is circumferentially distributed along the outer ring of left half a coupler (1),
Connection unit (3) includes permanent magnet (31), movable plate (32) and card column (33)；The movable plate (32) is located at left half a coupler
(1) in the groove on, the region of movable plate (32) side and groove formation is provided with magnetic fluid (34), movable plate (32) other side
It is connect with card column (33)；The right half a coupler (2) is equipped with card slot (21)；The permanent magnet (31) is mounted on right half shaft coupling
In groove on device (2), and the groove is located at the top of card slot (21)；When driving shaft drives the operating of right half a coupler (2), lead to
The mutual cooperation between permanent magnet (31) and magnetic fluid (34) is crossed, is pushed movable plate (32), so that card column (33) snaps onto card slot
(21) in, the smooth rotation of left half a coupler (1) is realized.
2. a kind of magnetic shaft coupling according to claim 1, it is characterised in that: be equipped with elastic card in the card slot (21)
Female connector (22)；The cross sectional shape of the elastic card female connector (22) is four finger-types, the equal length that two sides refer to, and is greater than middle part and refers to
Length；The end of the card column (33) is equipped with snap ring (35)；The cross sectional shape of the snap ring (35) and elastic card female connector (22)
Shape matches, and by the mutual cooperation between elastic card female connector (22) and snap ring (35), realizes that card column (33) steadily snap onto card
In slot (21).
3. a kind of magnetic shaft coupling according to claim 2, it is characterised in that: elastic card female connector (22) two sides refer to position
It sets place and is equipped with elastic pushing block (23)；No.1 channel (341) are symmetrically arranged on the snap ring (35)；By elastic card female connector (22) with
The gas that snap ring (35) generates when cooperating acts on elastic pushing block (23), so that elastic pushing block (23) snaps onto No.1 channel
(341) in, shaking when transmission is avoided.
4. a kind of magnetic shaft coupling according to claim 3, it is characterised in that: the side a of the elasticity pushing block (23) is equipped with
One group of through slot (231), and the quantity of through slot (231) is at least three, the side b of elastic pushing block (23) is equipped with one group of fixture block (232), card
Block (232) and through slot (231) cooperate, and fixture block (232) side is connected in the side b of elastic pushing block (23) by spring, separately
Side snaps onto through slot (231).
5. a kind of magnetic shaft coupling according to claim 4, it is characterised in that: symmetrically set on each fixture block (232)
There are No.1 pushing block (233)；No.1 pushing block (233) side is connected in the groove of fixture block (232) by spring, original state
Under, No.1 pushing block (233) is located in the groove of fixture block (232)；No.1 pushing block (233) are released by spring, reduce through slot
(231) gap.
6. a kind of magnetic shaft coupling according to claim 1, it is characterised in that: the top of the movable plate (32) is symmetrically set
There are elastic slice (321), realizes the fixation to movable plate (32) position by elastic slice (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545615.5A CN110266177B (en) | 2019-06-22 | 2019-06-22 | Magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545615.5A CN110266177B (en) | 2019-06-22 | 2019-06-22 | Magnetic coupling |
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| Publication Number | Publication Date |
|---|---|
| CN110266177A true CN110266177A (en) | 2019-09-20 |
| CN110266177B CN110266177B (en) | 2020-11-10 |
Family
ID=67920547
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910545615.5A Active CN110266177B (en) | 2019-06-22 | 2019-06-22 | Magnetic coupling |
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| CN (1) | CN110266177B (en) |
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| CN207437619U (en) * | 2017-11-23 | 2018-06-01 | 重庆理工大学 | The centrifugal slider formula magnetic rheologic flexible shaft coupling that a kind of marmem is assisted |
| CN109869418A (en) * | 2019-02-26 | 2019-06-11 | 恒有（苏州）精工机电有限公司 | A kind of magnetorheological overload protection drum-type shaft coupling of permanent-magnet-field |
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