CN209267478U - A kind of magnetic commutation retaining mechanism - Google Patents
A kind of magnetic commutation retaining mechanism Download PDFInfo
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- CN209267478U CN209267478U CN201821597743.1U CN201821597743U CN209267478U CN 209267478 U CN209267478 U CN 209267478U CN 201821597743 U CN201821597743 U CN 201821597743U CN 209267478 U CN209267478 U CN 209267478U
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Abstract
A kind of magnetic commutation retaining mechanism, including coaxial stator and rotor, the two is coupled by bearing；Stator and rotor have same amount of pole pair, and the magnetic pole of the stator of arbitrary neighborhood and the polarity of rotor magnetic pole are opposite；Rotor can rotate about the axis in the stator, and the pole pair of rotor is driven to move, be close to or far from stator pole pair；When pole pair of the pole pair of rotor close to stator, the suction-combining force between magnetic pole forms the torque to rotor shaft, is transmitted outward by rotor shaft and realizes locking effect；The pole pair of rotor can realize the locking effect of different directions from adjacent different magnetic pole of the stator to fitting；It is constantly present since the suction-combining force between magnetic pole is spontaneous, locking effect can be kept for a long time under no external driving conditions.Low energy consumption for magnetic commutation retaining mechanism described in the utility model, generates heat small, has prevented the overheating failure risk of traditional mechanism, and coupling mechanism force can be adjusted flexibly, can various valves and arm-and-hand system.
Description
Technical field
The utility model belongs to mechanical equipment automatic field, is related to a kind of may be implemented in the holding locking of multiple positions
Mechanism, the on-off especially suitable for valve system control or gate control and the clamping of manipulator or release the control.
Background technique
Valve is widely used in various fluid delivery systems, for realizing the control to flow process in pipe, including on-off
Control or commutation control etc..Especially in the industrial system of automation or instrument and equipment, solenoid valve is widely applied, it is by electromagnet
It drives valve core movement to change valve state, and passes through spring return function after electromagnet release.With common normally closed type electromagnetism clamp
For valve, valve pushes spool squeezing tube by spring when power is off, provides certain clamping force；When powering on then by electromagnet
Band movable valve plug discharges, and soft tube fluid is enable to flow freely.
Such solenoid valve principle is mature, is widely used.But solenoid valve certainly exists multiple working conditions (such as on-off valve
" logical " and " disconnected " state), correspondingly spool will necessarily be in different positions；When one of position is maintained by mechanical device
(such as spring force locking), position in addition often just need to be continued working by electromagnet to maintain, therefore generally existing energy consumption height,
The problems such as fever is big and reliability is low.Still by taking above-mentioned normally closed type energization magnetic clutch pipe valve as an example, needed when the valve is open to electromagnetism
Iron applies enough electric currents so that it is enough to overcome spring force, and under continuous duty, needs to continue to electromagnet
Power supply will consume biggish electric energy to maintain valve to open；And due to not doing work in continuous duty lower electromagnet,
Consumed electric energy will all be converted into thermal energy, lead to device heating；If the heat to dissipate cannot be discharged in time, device mistake
Hot then can have an important influence on to the safety of system, especially in long time continuous working, there are failure risks.With blood
For treatment, haemodialysis or CRRT equipment can all apply a certain number of normally closed type electromagnetism pinch valves, be up to a few hours very
Into tens of hours therapeutic process to maintain valve opening that can consume a large amount of electric energy, a large amount of heat is distributed, and generate
Very important equipment dependability hidden danger.Existing some more advanced solenoid valve systems usually can also mating complexity driving
Control system, if the usually mating dedicated driving plate of the VERSAGRIP electromagnetism pinch valve of ACRO uses, by PWM mode to valve body
Power supply.The application of driving control system can reduce fever to a certain extent and improve reliability, but not from principle on gram
Problem is taken, and increases the complexity and use cost of system.
In addition, also there would generally be manipulator to the clamping of workpiece and the demand of release function in robot field, face
The case where with valve have very big similitude, also there is an urgent need to more reliable, low energy consumption commutation retaining mechanisms.
Summary of the invention
The purpose of the utility model is to provide a kind of commutation retaining mechanisms, can be by spontaneous active force in multiple position shapes
It is locked under state, only needs energy to drive in commutation handoff procedure, thus reduce the energy consumption in valve or robot work,
And prevent device overheat and corresponding thrashing risk.
To achieve the above object, the utility model provides following solution: a kind of magnetic commutation retaining mechanism, including same
The stator and rotor of axis, the two are coupled by bearing；Stator and rotor have a same amount of pole pair, and arbitrary neighborhood is determined
The polarity of sub- magnetic pole and rotor magnetic pole is opposite；Rotor can rotate about the axis, and the pole pair of rotor is driven to move, and be close to or far
Pole pair from stator；When pole pair of the pole pair of rotor close to stator, the suction between magnetic pole is formed to rotor shaft
Locking torque makes the magnetic pole of rotor be intended to be bonded with the magnetic pole of stator；The locking torque passes through rotor shaft to external object
Clamping or fixed function are realized in transmitting；It is constantly present since the suction-combining force between the magnetic pole of rotor and the magnetic pole of stator is spontaneous,
The clamping or fixed function can be kept for a long time under no external driving conditions.
The quantity of the pole pair of the stator or rotor is greater than 1, and along section, contour is uniformly distributed；The pole pair of rotor can
From adjacent different magnetic pole of the stator to fitting, the locking effect of multiple positions is realized.
Rotary motion of the rotor in stator can be driven by motor or cylinder, realize the automatic switchover of locking state.
The magnetic pole of the pole pair of the stator or rotor is permanent magnet, and material is sintered NdFeB；Pole pair can be by permanent magnetism
It magnetizes to be formed after material is integrally formed, can also be formed by mosaic magnet after non-magnetic material machine-shaping.
The cross sectional shape of the pole pair of the stator or rotor is sector, and axial plane where the radius of two sides is respectively polarity
Opposite magnetic pole；The pole pair of rotor is in the fan-shaped cavity between the pole pair of stator, and the angle radian of fan-shaped cavity is big
In the angle radian of rotor magnetic pole pair, so that rotor can rotate in a certain range.
The locking torque that the rotor transmits outward can be calculated as T=k × N × M × r, and wherein N is the magnetic pole of stator or rotor
To quantity, M be each magnetic pole quality, r be magnetic pole mass center between rotor axis at a distance from, k is proportionality coefficient；By change N,
The locking torque size of output can be adjusted flexibly in M and r.
The advantageous effects of the utility model are:
(1) the magnetic commutation retaining mechanism of the utility model generates torque by the suction-combining force spontaneous between magnetic pole and keeps
Locking state drives without external impetus, and system energy consumption is low, and has prevented the heating problem of conventional electromagnetic pinch valve；
(2) coupling mechanism force of the magnetic commutation retaining mechanism of the utility model can be adjusted flexibly, and be widely used in various occasions；
(3) volume compact of the magnetic commutation retaining mechanism of the utility model, space effective rate of utilization are high.
Detailed description of the invention
Fig. 1 is the utility model mechanism action principle schematic diagram
Fig. 2 is the structural blast schematic diagram of embodiment 1
Fig. 3 is first state (release conditions) schematic diagram of embodiment 1
Fig. 4 is the second state (clamped condition) schematic diagram of embodiment 1
In figure, 1 is stator, and 2 be rotor, and 3 be bearing, and 11 be the first pole pair of stator, and 12 be the second magnetic pole of stator
Right, 21 be the first pole pair of rotor, and 22 be the second pole pair of rotor, and 23 be the shaft of rotor.
Specific embodiment
With reference to the accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1, a kind of on-off type pinch valve, referring to fig. 2-4, including stator 1, rotor 2 and bearing 3；Wherein 1 He of stator
Respectively there are two pole pairs for rotor 2, and pole pair is sector, is uniformly distributed along contour.
The on-off type pinch valve includes first state (Fig. 3) and the second state (Fig. 4), and wherein first state is release shape
State, the second state are clamped condition；
In the first state, the pole S in the first pole pair 11 of the pole N in the first pole pair 21 of rotor 2 and stator 1 is pasted
It closes, and the pole N in the second pole pair 22 of rotor 2 is bonded with the pole S in the second pole pair 12 of stator 1；Two betweens of binding faces
The suction-combining force generate relative rotor shaft 23 anti-clockwise torque, maintain pinch valve be in release conditions.
In the second condition, the pole N in the second pole pair 12 of the pole S in the first pole pair 21 of rotor 2 and stator 1 is pasted
It closes, and the pole S in the second pole pair 22 of rotor 2 is bonded with the pole N in the first pole pair 11 of stator 1；Two betweens of binding faces
The suction-combining force generate relative rotor shaft 23 clockwise torque, maintain pinch valve it is in clamped condition.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (6)
1. a kind of magnetic commutation retaining mechanism, it is characterised in that: the magnetic commutation retaining mechanism includes coaxial stator and turns
Son, the two are coupled by bearing；Stator and rotor have same amount of pole pair, and the magnetic pole of the stator and rotor of arbitrary neighborhood
The polarity of magnetic pole is opposite；Rotor can rotate about the axis, and the pole pair of rotor is driven to move, be close to or far from stator magnetic pole
It is right；When pole pair of the pole pair of rotor close to stator, the suction between magnetic pole forms the locking torque to rotor shaft, makes to turn
The magnetic pole of son is intended to be bonded with the magnetic pole of stator；The locking torque is transmitted by rotor shaft to external object, is realized and is clamped
Or fixed function；It is constantly present, the clamping or fixation since the suction-combining force between the magnetic pole of rotor and the magnetic pole of stator is spontaneous
Effect can be kept for a long time under no external driving conditions.
2. magnetic commutation retaining mechanism according to claim 1, it is characterised in that: the number of the pole pair of the stator or rotor
Amount is greater than 1, and along section, contour is uniformly distributed；The pole pair of rotor can be realized more from adjacent different magnetic pole of the stator to fitting
The locking of a position acts on.
3. magnetic commutation retaining mechanism according to claim 1, it is characterised in that: rotary motion of the rotor in stator
It can be driven by motor or cylinder, realize the automatic switchover of locking state.
4. magnetic commutation retaining mechanism according to claim 1, it is characterised in that: the magnetic of the pole pair of the stator or rotor
Extremely permanent magnet, material are sintered NdFeB；Pole pair can by permanent-magnet material it is integrally formed after magnetize and formed, can also be by non magnetic
Mosaic magnet is formed after material machine-shaping.
5. magnetic commutation retaining mechanism according to claim 1, it is characterised in that: the pole pair of the stator or rotor is cut
Face shape is sector, and axial plane where the radius of two sides is respectively opposite polarity magnetic pole；The pole pair of rotor is in stator
In fan-shaped cavity between pole pair, and the angle radian of fan-shaped cavity is greater than the angle radian of rotor magnetic pole pair, so that rotor can be
Rotation in a certain range.
6. magnetic commutation retaining mechanism according to claim 1, it is characterised in that: the locking torque that the rotor transmits outward
It can be calculated as T=k × N × M × r, wherein T is locking torque, and N is the number of pole of stator or rotor, and M is the matter of each magnetic pole
Amount, r be magnetic pole mass center between rotor axis at a distance from, k is proportionality coefficient；The lock that output can be adjusted flexibly by changing N, M and r
Tight torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597743.1U CN209267478U (en) | 2018-09-29 | 2018-09-29 | A kind of magnetic commutation retaining mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597743.1U CN209267478U (en) | 2018-09-29 | 2018-09-29 | A kind of magnetic commutation retaining mechanism |
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| Publication Number | Publication Date |
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| CN209267478U true CN209267478U (en) | 2019-08-16 |
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ID=67552158
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821597743.1U Active CN209267478U (en) | 2018-09-29 | 2018-09-29 | A kind of magnetic commutation retaining mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067252A (en) * | 2018-09-29 | 2018-12-21 | 成都酷卓生命科技有限公司 | A kind of magnetic commutation retaining mechanism |
| CN116624594A (en) * | 2023-05-05 | 2023-08-22 | 泰安市金水龙金属容器有限公司 | Double-cover pressure container and use method thereof |
-
2018
- 2018-09-29 CN CN201821597743.1U patent/CN209267478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067252A (en) * | 2018-09-29 | 2018-12-21 | 成都酷卓生命科技有限公司 | A kind of magnetic commutation retaining mechanism |
| CN116624594A (en) * | 2023-05-05 | 2023-08-22 | 泰安市金水龙金属容器有限公司 | Double-cover pressure container and use method thereof |
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