CN203548661U - Electromagnetic actuator used for allowing load to rotate - Google Patents
Electromagnetic actuator used for allowing load to rotate Download PDFInfo
- Publication number
- CN203548661U CN203548661U CN201320078121.9U CN201320078121U CN203548661U CN 203548661 U CN203548661 U CN 203548661U CN 201320078121 U CN201320078121 U CN 201320078121U CN 203548661 U CN203548661 U CN 203548661U
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- torque
- actuator
- friction surface
- secondary input
- electric notor
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an electromagnetic actuator used for allowing load to rotate. The actuator comprises an electric motor (14) which is used for driving the load by the aid of a main driving shaft (20); the actuator also comprises a secondary input member (38) and a torque transmission mechanism connected with the secondary input member and an intermediate rotation output member (40); the torque transmission mechanism comprises a static framework (42) and a bidirectional coupling (32), so motor torque imposed by the secondary input member (38) is transmitted to the intermediate output member (40), and the intermediate output member (40) is fixed on the static framework (42) when the motor torque is not imposed by the secondary input member (38); and the actuator also comprises a torque limiter (34) connecting the intermediate output member (40) to the main driving shaft (20), and the torque limiter (34) has a joint function.
Description
Technical field
The utility model relates to a kind of for the motor machine actuator around how much spin axis driving load.More specifically, the utility model relates to a kind of mechanism of aforementioned type, and it can be realized in motor-driven mode and especially in motor or the out of order situation of its power supply, in manual mode, drive load.The utility model especially relates to a kind of plan for driving the mechanism of aforementioned type of roller shutter blinds.The utility model also relates to some the technology brick (technological brick) using in this motor machine drive actuator.The utility model especially relates to a kind of torque-transmitting mechanisms, it is for being delivered to the second rotating member by any motor torque from the first rotating member, but in the case of not the second rotating member not being locked the motor torque being applied by the first rotating member, no matter sense of rotation how.The utility model also relates to a kind of by the mechanism of motor and torque limiter combination.
Background technique
In file DE3504489, a kind of motor machine actuator for roller shutter blinds is axially rotated has been described, comprise electric notor and assisted control part, wherein electric notor is for driving roller shutter blinds by means of main driving axle, assisted control part comprises the mechanism that the torque for handle is manually provided is transmitted, and can realize at electric notor and being out of order or the power supply of electric notor drives blinds interrupting.
Torque-transmitting mechanisms comprises two-way freewheel, this two-way freewheel is used for any motor torque being applied on secondary drive wheel by handle to be delivered to jack shaft, and for jack shaft being fixed to rest frame in the case of not having the motor torque being applied by secondary input shaft." two-way freewheel " refers to and can realize the motor torque that input shaft is applied and be delivered to output shaft any mechanism of (referring to jack shaft herein) from this input shaft (referring to secondary input shaft herein) herein, no matter the sense of rotation of two axles how, and it forbids that torque and energy are delivered to input shaft from output shaft.
In the normal operation period, motor by mobile the first backing plate (backing plate) directly by the drive shaft separation with secondary input shaft with jack shaft.In power supply, interrupt or directly drive in out of order situation, break is connected to rest frame by live axle.If for example because the weight of the part of the blinds having launched makes roller shutter blinds apply torque on live axle, live axle keeps motionless, this is because live axle moves and is connected to framework by means of two-way freewheel.But, if user starts in any one direction handle and torque is applied on secondary input shaft in any sense of rotation, two-way freewheel is connected to secondary input shaft by secondary input shaft, the torque that makes to be applied by user is passed to the second backing plate and is delivered to the housing of actuator, and actuator is then around self rotating to drive blinds.
Due to the housing rotation of actuator during using assisted control part, thereby this mechanism produces a certain amount of restriction, especially with for the electricity of motor supplies relevant restriction.In addition, due to wearing and tearing, thereby in the risk that manually can not exempt loss between the spreadable life.In fact, by user, manually produce, by gear stage (gear stage) enhancing and by the whole torques of transmitting of torque-transmitting mechanisms, may surmount maximum permission torque, and in the situation that roller shutter blinds blocks, cause the especially gear stage disconnection of most fragile part of motion transfer chain.
In addition, two-way freewheel is not illustrated to the connection of framework yet.It carries out complexity, and this is the housing rotation due to actuator during using assisted control part.In addition, use the two-way freewheel that is combined with stopper spring to produce complicated formulation size restrictions, and be not must be applicable for for example commercial fire grate (grate) speech of housing that drives substantial load.
Model utility content
The utility model is intended to the deficiency of technical solution current situation, and proposes the reliable mechanism that a kind of volume reduces, and this mechanism allows to be driven by motor or secondary power supply, and in fact it manually produced by user.
For this purpose, according to first aspect of the present utility model, propose a kind of electromagnetic actuators for load is rotated, it comprises:
-electric notor, it is for driving load by means of main driving axle;
-secondary input link;
-torque-transmitting mechanisms, it is connected to secondary input link and middle rotation output link, torque-transmitting mechanisms comprises rest frame and two-way joiner, output link in the middle of being delivered to any motor torque that secondary input link is applied, and the motor torque being applied by secondary input shaft, middle output link is fixed to rest frame in the case of not having, and
-torque limiter, it is connected to main driving axle by middle output link.
Torque limiter is adjusted to any torque that is less than or equal to critical reference torque is transmitted fully, and does not transmit the torque higher than critical reference torque.By reasonably selecting critical reference torque, thereby can realize the most fragile part of protection load or mechanism.In fact, critical reference torque is preferably more than the maximum motor torque of electric notor, and be preferably less than the peak torque being allowed by the motion transfer chain between motor and load, in other words, the inefficacy torque of the most fragile element of motion transfer chain (failure torque).
According to a kind of mode of execution, torque limiter comprises the friction surface applying pressure to each other with predetermined force.Friction surface is preferably gradually thin, with optimization volume axially and radially, but also can consider other shapes.Gradually thin friction surface is especially applicable to, and this is that it can be realized torque limiter is contained in the internal diameter of stator or motor because for given motor power.
According to a kind of mode of execution, output link in the middle of a friction surface in friction surface is fixed to, it can make or make multiple parts to be fixed to one another with the form of single-piece to form, form compact assembly.By this way, torque limiter and two-way joiner have total multifunctional component, and it produces improved compactness.
According to a kind of mode of execution, torque limiter comprises at least one the elastic reset member that applies predetermined force.
Preferably, actuator comprises the releasing Engagement Control device (disengagement controller) for making torque limiter separate when motor is powered.This releasing engages and preferably acts in one of them part of torque limiter.Therefore torque limiter is also carried out and is engaged or braking function, thereby in certain operator scheme, makes the motion transfer chain between main driving axle and secondary input link interrupt.This multifunctionality in same member is especially favourable for the compactness of assembly.
According to a kind of mode of execution, to remove Engagement Control device and comprise the yoke of being made by ferromagnetic material, the field that this yoke is induced by motor is activated and is removable between coupled position and disengaging configuration.The motion of yoke can be especially the translational motion that is parallel to main driving axle.It should be noted that in this case, yoke be only can translation parts, miscellaneous part and especially secondary input link, middle output link and main driving axle are into the form of axial-rotation.Preferably, these rotations occur around the same geometric reference axis of mechanism.Mechanism has with the height of little radial and axial bulk form integrated thus.
Preferably, aforementioned elastic reset member makes yoke setover towards coupled position.
For the quantity of limiting part again, can be arranged to: yoke is provided with a friction surface in friction surface.
As mentioned above, the utility model is especially suitable for driving roller shutter blinds or business fire grate.A kind of rotor especially can be provided, and this rotor is by drive shaft and have columniform outer surface to be wound around the roller shutter blinds or the fire grate that form load.
According to a kind of mode of execution, mechanism also comprises the secondary drive member that makes the rotation of secondary input link.It can be for example secondary motor.But according to one preferred embodiment, secondary drive motor is configured to allow user manually to drive secondary input link.It can be especially rectangular handle, or band and pulley gear.
According to a kind of mode of execution, actuator also comprise provide in the middle of at least one slip or the rolling bearing of connection between output link and main driving axle, with respect to axle, guide friction cone rotating freely at the operation period of motor leading axle when being applied on handle in torque.If bearing preferably includes outer shroud, interior ring and applicable, also comprise rolling element, output link in the middle of its outer-loop is fixed to, interior ring is fixed to main driving axle, and rolling element is disposed between two rings.
It should be noted that main driving axle can directly or by means of reduction gear drive load.Reduction gear and torque limiter are preferably located in each side (either side) of motor.Then torque limiter is adjusted to any torque that is less than or equal to critical reference torque is transmitted fully, and do not transmit any torque higher than critical reference torque, critical reference torque is greater than the maximum motor torque of electric notor and is less than the admissible peak torque of reduction gear.
According on the other hand of the present utility model, described model utility relates to a kind of for making the electromagnetic actuators of load rotation, and it comprises:
-comprising the electric notor of stator and rotor, described electric notor is for driving the live axle that defines geometric reference axis;
-torque limiter, it comprises:
The-the first friction member, it is parallel to geometric reference axis between coupled position and disengaging configuration can translation and be fixed to live axle with rotation form, the first friction member comprises the first friction surface, the first friction member also comprises the yoke of being made by ferromagnetic material, this yoke is arranged to the rotor of electric notor at a distance of a variable air gap, once with in the contacting of rotor, produce the magnetic field that attracts the first friction member towards disengaging configuration, electric notor is just powered;
The-the second friction member, it is included in second friction surface on the first friction surface opposite, and
-elastic reset member so that the first friction member is setovered towards coupled position, and is pressed against on the second friction surface the first friction surface with predetermined force in coupled position.
The first friction member forms following multifunctional component, and this multifunctional component can be realized according to the electric existence of supply motor or not have connection or the separation of controlling torque limiter.Torque limiter separates when motor is powered, and connects when motor is not powered.If the second friction member is static or is coupled to rest frame, torque limiter can be used as break and works.According to one preferred embodiment, the second friction member can also be overlapped to assist handle or another auxiliary drive member, if by means of for example two-way freewheel joiner of two-way joiner words applicatory.
In coupled position, predetermined force is preferably so that torque limiter transmits any torque that is less than or equal to critical reference torque fully, and does not transmit the torque higher than critical reference torque.Critical reference torque is preferably more than the maximum motor torque of electric notor.This to be arranged in the second friction member overlapped useful in particular when the auxiliary drive member, and the peak torque of auxiliary drive member must be controlled, especially by hand-driven handle.According to a kind of mode of execution, critical reference torque is less than the peak torque being allowed by the motion transfer chain between motor and load, in other words, and the inefficacy torque of the most fragile element of motion transfer chain.
According to one preferred embodiment, the first friction surface and the second friction surface are gradually thin.For given critical reference torque, this layout can realize the external diameter on limiting friction surface and the elastic bias force of reset components, makes device keep sizable simplicity simultaneously.It also affects the dimensioned of motor self, and this is the power because of the elastic reset member that must create antagonism from the magnetic flow of motor.Therefore, can realize with the motor of gradually thin friction surface and Same Efficieney and torque limiter being contained in the internal diameter of stator of motor.
According to one preferred embodiment, the second friction member is fixed to receiving member, makes it possible to, in primary importance, the second friction member is fixed to rest frame, and in the second place, the second friction member is fixed to secondary input shaft.
According to a kind of mode of execution, actuator comprises reduction gear, and reduction gear and torque limiter are preferably located in each side of motor.Torque limiter is preferably adjusted to any torque that is less than or equal to critical reference torque is transmitted fully, and do not transmit the torque higher than critical reference torque, critical reference torque is greater than the maximum motor torque of electric notor and is less than the maximum permission input torque of reduction gear.
According to the particularly advantageous mode of execution of one, the first friction member is made with the form of single-piece, and this can realize the quantity the simplified assembly that reduce parts.
According on the other hand of the present utility model, the utility model relates to a kind of torque-transmitting mechanisms, and it comprises:
The-the first member, it rotates around geometric reference axis;
-second component, it rotates around geometric reference axis;
-stationary cylinder (stationary drum), it has interior cylindrical surface, and
-multiple paired locking members, each locking member with around the sense of rotation of geometric reference axis, be associated, and can when contacting with the interior cylindrical surface of the second rotating member and stationary cylinder, present locked position, to stop the second rotating member to rotate in the sense of rotation being associated, and when contacting with the second rotating member with the first rotating member, present activation point, to transmit the motor torque that is applied to the second rotating member by the first rotating member in the sense of rotation being associated, every pair of locking member comprises the locking member being associated with the first sense of rotation and the second locking member being associated with contrary sense of rotation, paired locking member is uniformly distributed angularly around axis of reference.
Torque-transmitting mechanisms is because it operates and form two-way joiner in two sense of rotation, its function is that any motor torque is delivered to the second rotating member from the first rotating member, but stop any motor torque to be delivered to the first rotating member from the second rotating member, in that case by the rotational lock of the second rotating member.
The layout that is uniformly distributed of locking member is guaranteed the suitable distribution of guaranteeing the point of contact that the torque between the first rotating member and the second rotating member or between the second rotating member and stationary cylinder is transmitted.The distribution of this equilibrium can realize the restriction to the stress perpendicular to axis of reference.Especially can realize the wearing and tearing of the rotary actuation bearing of restriction the first rotating member and/or the second rotating member.
The technology brick that this mechanism can be used as in multiple positions of motion transfer chain is implemented, and especially between secondary input shaft and primary input axle, if for according to the insertion words applicatory of the indicated torque limiter in previous aspect of the present utility model.
According to a kind of mode of execution, locking member is roller, preferably columniform roller.
According to one preferred embodiment, there is three pairs or more multipair locking member.Quantity three is preferred, because it is desirable the trading off between the hope to locking member equiblibrium mass distribution and the volume of generation.
Described mechanism also comprises that this device can consist of spring sheet for making each locking member flexibly be back to the device of locked position.According to a kind of mode of execution, each spring sheet coordinates with two locking members that are associated with two contrary sense of rotation.By this way, the number of components that can realize reducing is guaranteed returning elastically of locking member, and the paired quantity of number of springs and the locking member that has as many in this case.Preferably, each spring sheet is by making two locking members be separated from each other and coordinate with two locking members.Two locking members can belong to adjacent two couple.This layout is advantageous particularly with regard to volume.
According to a kind of mode of execution, the first rotating member forms star, this star comprises branching portion of every pair of locking member, each branching portion is preferably arranged between two locking members of pair of locking element, and not with the neutral position of locking member contact, the activation point contacting with one of them locking member in a sense of rotation and in contrary sense of rotation and removable between the activation point that contacts of another locking member.This layout can realize the minimum number that makes parts, guarantees desirable symmetry properties simultaneously.
According to a kind of mode of execution, the second rotating member is provided with friction surface, described mechanism also comprises the 3rd member, the 3rd member is around the rotation of geometric reference axis and comprise the friction surface being arranged on the friction surface opposite of the second rotating member, the 3rd rotating member can translation between coupled position and disengaging configuration with respect to the second rotating member, wherein in coupled position, the friction surface of the 3rd rotating member contacts with the friction surface of the second rotating member, and in disengaging configuration, the friction surface of the 3rd rotating member separates away from the second rotating member.The 3rd rotating member can advantageously be rotated towards contact position by Returnning spring.
Described mechanism also comprises countertorque (counter-torque), especially friction element, and especially frictional connection part, especially O type ring, to apply predetermined friction torque between the second rotating member and stationary cylinder.This friction torque that amplitude is little can realize restriction or eliminate strip type curtain or the caused certain sudden moving effect (jerking effect) of large fire grate by the load that does not produce constant resisting torque, for example launched brokenly.The amplitude of the friction that in fact, friction element produces is less than 10% of critical reference torque.
Accompanying drawing explanation
Other Characteristics and advantages of the present utility model will be read following description and understand by reference to accompanying drawing, and accompanying drawing illustrates:
-Fig. 1 is the sketch according to mechanism of the present utility model;
-Fig. 2 is the exploded view of the two-way freewheel of the mechanism in Fig. 1;
-Fig. 3 is the cross-sectional view of the two-way freewheel of the Fig. 2 in freewheel position;
-Fig. 4 is the perspective view of the two-way freewheel of Fig. 2;
-Fig. 5 is the cross-sectional view of the details of the mechanism of Fig. 1;
-Fig. 6 is the exploded view of some elements of the mechanism in Fig. 1.
Embodiment
Fig. 1 schematically illustrates the motorized actuator 10 being accommodated in cylindrical stationary housings 12, and it can for example be positioned in the end of bobbin of roll-type curtain or roller shutter blinds or another kind of load or the inside of the bobbin of embedding roll-type curtain or roller shutter blinds or another kind of load.Mechanism 10 comprises electric notor 14, reduction gear 22 and auxiliary device 24, wherein electric notor 14 consists of stator 16 and the rotor 18 that forms main driving axle 20, reduction gear 22 is connected to main driving axle 18 and has the output shaft 23 that is designed to drive load, and auxiliary device 24 allows live axle 20 to drive in the out of order situation of power supply of motor 14 or motor 14.Auxiliary device 24 and reduction gear 22 are positioned at two ends of axle 20 in each side of motor 14.
In Fig. 2 to Fig. 4, illustrated two-way freewheel 32 has input link 36, multi-functional middle output link 40 and stationary cylinder 42, input link 36 be fixed to auxiliary axis 30 and with its formation secondary input link 38, in the middle of multi-functional, output link 40 consists of the reception part 40.1 and the friction cone 40.2 that are fixed to each other, and stationary cylinder 42 is by having the cylindrical wall 42.1 radially inwardly pointing to and guiding the cylinder of shoulder 42.2 to form.In Fig. 3, stationary cylinder 42 is intentionally omitted, can observe spring sheet 48 and to receive part 40.1.Freewheel also comprises and is accommodated in three couple 44 cylindrical roller 44.1,44.2 of cover in 46, wherein cover 46 by receive part 40.1 shape walls 40.11 in the slope or 40.12 and the cylindrical wall 42.1 of stationary cylinder 42 demarcate.Roller leans against on described wall by spring 48.Every pair of roller 44 comprises roller 44.1 and roller 44.2, wherein roller 44.1 coordinates and is associated with a sense of rotation 100.1 around geometrical axis 100 with the wall 40.11 that receives part, and roller 44.2 coordinates and is associated with contrary sense of rotation 100.2 with the wall 40.12 that receives part.In the plane of Fig. 3, apparently, each spring 48 being by having substantially W shape shape and forming with the blade of curved end, wherein curved end receive separately roller 44.1 or 44.2 and by roller push with receive part 40.1 wall 40.11 or 40.12 and the contact position of the wall 42.1 of stationary cylinder in.In Fig. 4, receive part 40.1 and intentionally omitted, can observe spring sheet 48.Input link 36 and middle output link 40 can be around geometric reference axis 100 along direction 100.1 and direction 100.2 rotate.Input link 36 is the star shape with branching portion 36.1 substantially, and wherein the paired quantity of the quantity of branching portion 36.1 and the roller 44 that has as many, is three herein.Each branching portion 36.1 is transmission cover 46 between two rollers 44.1,44.2 of a pair of roller, alternately to coordinate with a roller or another roller.Two-way freewheel 32 is disposed in the groove 40.13 that receives part 40.1 and starts to contact and complete with the cylindrical wall 42.1 of stationary cylinder 42 with frictional connection part 50.
As illustrated in Fig. 2, Fig. 5 and Fig. 6, friction cone 40.2 is provided with gradually thin friction fitting 52, and be the integral part of torque limiter 34, torque limiter 34 also comprises yoke 54, and yoke 54 forms the gradually thin pelvic part having at the friction surface 56 on the friction surface opposite of friction cone 40.2.Yoke 54 is made by low magnetic hysteresis ferromagnetic material, and is connected to main driving axle 20 by key 58, key 58 allow with respect to axle 20 be parallel to yoke 54 100 translations of geometric reference axis slide, but stop any rotation between those two parts.The first friction member of yoke 54 and the each self-forming torque limiter 34 of friction cone 40.2 and the second friction member.Fig. 5 also illustrates the ball bearing 62 being disposed between friction cone 40.2 and axle 20, guarantee when torque is applied on handle friction cone with respect to the guiding of axle 20 and during motor operated the rotating freely of axle 20.
Described mechanism operation is as follows.
When the electric power lacking for motor, as illustrated in Figure 5, between the rotor 18 of yoke 54 and motor, there is axial air-gap electronic.Returnning spring 60 provides in yoke 54 along direction 100.3 is enough to make the friction surface 52,56 of friction cone and yoke to lean against the power going up each other, and any torque on live axle that load is applied to 20 is passed to fully to friction cone 40.2 and there is no relative sliding.Friction cone 40.2 and yoke are carried out braking function.
If do not have torque to be applied on assist handle 26, two-way freewheel 32 is in the neutral position shown in Fig. 3: branching portion 36.1 does not contact with roller 44.1,44.2, be centered at roller 44.1,44.2, roller 44.1,44.2 is stuck in the wall 42.1 of stationary cylinder 42 and receives between the wall 40.11 or 40.12 of part 40.1, by blocking, those two parts is fixed.The motor torque applying in a direction 100.1 of friction cone 40.2 or in another direction 100.2 is all delivered to stationary cylinder 42, and does not cause that because roller blocks between the wall 42.1 of stationary cylinder 42 and the wall 40.11 or 40.12 of reception part 40.1 middle output link 40 or secondary output link 38 rotate.Therefore, do not have motor torque to be delivered to secondary output link 38 from friction cone 40.2.Then, torque limiter 34 and freewheel 32 are carried out braking function, stop the rotation of any contretemps of the live axle 20 being driven by load.
According to the neutral position of Fig. 2, if auxiliary axis 30 rotates along sense of rotation 100.1, sense of rotation 100.2 respectively under torque fully, the branching portion 36.1 of secondary input link 38 correspondingly allows that roller 44.1,44.2 is positioned along sense of rotation, and the power that heads on Returnning spring 48 makes roller 44.1,44.2 move away from its neutral.Once roller stops with cylinder 42 or receives the wall 42.1,40.11 of part 40.1 contacting, motor torque and be all passed to middle-end output link 40 by roller 44 from rotatablely moving of handle 26 and secondary input link 38.Therefore can realize by means of assist handle 26 drives live axle 20 and load.Friction O type ring 50 forms the countertorque member of introducing a small amount of friction torque, the sudden moving effect when can realize restriction or avoiding load non-constant.This be for example when load be the situation while being formed by the strip type roll-type curtain launching or large fire grate.
If it is too high to be applied to torque on assist handle 26 by user, and exceeds the admissible peak torque of torque limiter 34, friction surface 52,56 starts relative to each other to slide, only transmitting torque partly.By reasonably selecting the stretching of spring 60, therefore can realize the most fragile part of protection mechanism, be reduction gear 22 in this example.The excessive of this torque of allowing can produce when blinds arrives the end of stroke, exists obstacle or hard spot (hard point) to produce in end portion or in due to slider.
Once the motor torque being applied on assist handle 26 stops, spring sheet 48 just makes roller 44.1 and roller 44.2 turn back to locked position, lock drive axle 20.
When motor 14 is powered, yoke 54 axially moves under the effect in the magnetic field of inducing along direction 100.4, and comes alongside against motor edge, spring 60 is stretched, is eliminated simultaneously air gap and discharge torque limiter 34.Then rotor 18 rotates freely, and drives reduction gear 22 and load.In Fig. 5, spring 60 is rendered as and is partially inserted in rotor 18.It is optionally accommodated in the volume of yoke 54.
Once cut off the electricity that leads to motor 14, for example, because load has reached desired position, the yoke 54 being promoted backward by spring 60 just moves, and again along the side of friction cone 40.2, comes alongside.The latter can not rotate due to the interfix of two-way freewheel, makes rotor 18 also not movable, guarantees the location of load.
Certainly, multiple change is fine.The gradually thin shape of the friction surface 52,56 of torque limiter is especially suitable for limiting the diameter of torque limiter in the internal diameter of stator 16 and cylindrical body 12 and does not make spring 60 oversize, and therefore limits motor.But, by plate or multiple dish are provided for torque limiter, can adopt as required other shapes.Friction surface can be formed directly in friction cone and yoke, or can consist of attached accessory.Two-way freewheel 32 can have any suitable structure, for example, have roller, ball, pawl or cam.It can consist of two continuous freewheel levels.
Identical mechanism can be used together with replacing the secondary motor of handle.
Claims (16)
1. for making an electromagnetic actuators for load rotation, described actuator comprises:
-electric notor (14), it is for driving load by means of main driving axle (20);
-secondary input link (38); And
-torque-transmitting mechanisms, it is connected to described secondary input link and middle rotation output link (40), described torque-transmitting mechanisms comprises rest frame (42) and two-way joiner (32), with any motor torque that described secondary input link (38) is applied, be delivered to described middle rotation output link (40), and rotation output link (40) in the middle of described is fixed to described rest frame (42) in the case of not having the motor torque being applied by described secondary input link (38)
It is characterized in that, described actuator comprises the torque limiter (34) that rotation output link (40) in the middle of described is connected to described main driving axle (20).
2. actuator according to claim 1, it is characterized in that, described torque limiter (34) is adjusted to any torque that is less than or equal to critical reference torque is transmitted fully, and do not transmit the torque higher than described critical reference torque, described critical reference torque is greater than the maximum motor torque of described electric notor (14).
3. actuator according to claim 1 and 2, is characterized in that, described torque limiter (34) comprises the friction surface (52,56) applying pressure to each other with predetermined force.
4. actuator according to claim 3, is characterized in that, described friction surface (52,56) is gradually thin.
5. actuator according to claim 3, is characterized in that, the friction surface (52) in described friction surface (52,56) is fixed to described middle rotation output link (40).
6. actuator according to claim 3, is characterized in that, described torque limiter (34) comprises at least one the elastic reset member (60) that applies described predetermined force.
7. actuator according to claim 1 and 2, is characterized in that, described actuator comprises the releasing Engagement Control device for making described torque limiter (34) separate when described electric notor (14) is powered.
8. actuator according to claim 7, it is characterized in that, described releasing Engagement Control device comprises the yoke (54) of being made by ferromagnetic material, and the field that described yoke (54) is induced by described electric notor is activated and be removable between coupled position and disengaging configuration.
9. actuator according to claim 6, it is characterized in that, described actuator comprises the releasing Engagement Control device for making described torque limiter (34) separate when described electric notor (14) is powered, described releasing Engagement Control device comprises the yoke (54) of being made by ferromagnetic material, the field that described yoke (54) is induced by described electric notor is activated and is removable between coupled position and disengaging configuration, and described elastic reset member (60) is setovered described yoke (54) towards described coupled position.
10. actuator according to claim 8, it is characterized in that, described torque limiter (34) comprises the friction surface (52,56) applying pressure to each other with predetermined force, and described yoke (54) is provided with the friction surface (56) in described friction surface (52,56).
11. actuators according to claim 1 and 2, is characterized in that, described actuator also comprises the secondary drive member (26) that makes described secondary input link (38) rotation.
12. actuators according to claim 1 and 2, it is characterized in that, described actuator comprise provide described in the middle of at least one slip or the rolling bearing (62) of connection between rotation output link (40) and described main driving axle (20), to be applied in described secondary input link (38) at motor torque, with respect to described main driving axle (20), to guide in the middle of described and rotate output link (40) and guarantee rotating freely of described main driving axle (20) in the operation period of described electric notor (14) when upper.
13. actuators according to claim 1 and 2, is characterized in that, described secondary input link (38), described middle rotation output link (40) and described main driving axle (20) rotate around same geometrical axis.
14. actuators according to claim 1 and 2, is characterized in that, described actuator comprises reduction gear (22).
15. actuators according to claim 14, it is characterized in that, described torque limiter (34) is adjusted to any torque that is less than or equal to critical reference torque is transmitted fully, and do not transmit the torque higher than described critical reference torque, described critical reference torque is greater than the maximum motor torque of described electric notor (14) and is less than the maximum permission input torque of described reduction gear (22).
16. actuators according to claim 14, described reduction gear (22) and described torque limiter (34) are positioned in each side of described electric notor (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1251517A FR2987067B1 (en) | 2012-02-20 | 2012-02-20 | ELECTROMECHANICAL ACTUATOR FOR DRIVING INTO ROTATION OF A TORQUE LIMITING LOAD |
| FR1251517 | 2012-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548661U true CN203548661U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320078121.9U Expired - Lifetime CN203548661U (en) | 2012-02-20 | 2013-02-20 | Electromagnetic actuator used for allowing load to rotate |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2628888B1 (en) |
| JP (1) | JP3183230U (en) |
| CN (1) | CN203548661U (en) |
| FR (1) | FR2987067B1 (en) |
| PL (1) | PL2628888T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101846703B1 (en) | 2016-09-12 | 2018-04-06 | 현대자동차주식회사 | Drive motor capable of separating rotating member when the rotating member is restrained |
| EP3663501B1 (en) * | 2018-12-03 | 2021-02-17 | D&M Kg | Coiling shaft assembly for a building opening shading device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3420789A1 (en) * | 1984-06-04 | 1985-12-05 | Josef 7312 Kirchheim Pradler | Drive unit |
| DE3504489A1 (en) * | 1985-02-09 | 1986-08-14 | Lothar 7984 Wolpertswende Huber | Device for manual operation of the winding shaft, which can be driven by an electric motor, for example of a roller shutter in the case of the electric motor being unpowered |
| FR2736087B1 (en) * | 1995-06-28 | 1998-01-09 | Bubendorff Sa | MOTORIZED SHUTTER |
-
2012
- 2012-02-20 FR FR1251517A patent/FR2987067B1/en not_active Expired - Fee Related
-
2013
- 2013-02-19 JP JP2013000874U patent/JP3183230U/en not_active Expired - Fee Related
- 2013-02-19 EP EP13155746.4A patent/EP2628888B1/en active Active
- 2013-02-19 PL PL13155746T patent/PL2628888T3/en unknown
- 2013-02-20 CN CN201320078121.9U patent/CN203548661U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2987067A1 (en) | 2013-08-23 |
| EP2628888B1 (en) | 2014-09-24 |
| PL2628888T3 (en) | 2015-03-31 |
| JP3183230U (en) | 2013-05-09 |
| FR2987067B1 (en) | 2014-03-28 |
| EP2628888A1 (en) | 2013-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |