CN205377552U - Magnetic force cam drive unit and shaking table device and sharp drive arrangement - Google Patents
Magnetic force cam drive unit and shaking table device and sharp drive arrangement Download PDFInfo
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- CN205377552U CN205377552U CN201521135330.8U CN201521135330U CN205377552U CN 205377552 U CN205377552 U CN 205377552U CN 201521135330 U CN201521135330 U CN 201521135330U CN 205377552 U CN205377552 U CN 205377552U
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Abstract
The utility model provides a magnetic force cam drive unit and shaking table device and sharp drive arrangement, including push rod, first magnet, second magnet, the fastening of first magnet is installed in the cam, the magnetic force that the second magnet was applyed first magnet, the cam rotates back driven pushing rod motion. The utility model discloses with electromagnetism magnetic phase combination forever, energy utilization is high, and when motion part is the permanent magnet, do not need the brush isotructure to switch on, therefore simple structure, the utility model discloses a direct driving method, the driving moment is big, and the permanent magnet can set up with improvement output torque with solenoid's quantity and the relation of position grouping between the two in a flexible way, and the utility model discloses the closure structurally realizes how much to the bounce phenomenon of parts such as push rod when high -speed high frequency reciprocating motion has been avoided.
Description
Technical field
This utility model relates to actuated by cams, in particular it relates to magnetic force actuated by cams unit and vibration platform apparatus and linear drive apparatus.
Background technology
Vibration platform apparatus can be used for analog equipment and manufacturing, assembling transport and use the various vibration environments met with in the execution stage, thus being used for detecting the vibration environment impact on product parameters.Such as, patent documentation (application number 201310091900.7;Publication number CN103182728A) disclose a kind of hydraulic vibration gen, including fixing steelframe, lifting steelframe, vibration table and hydraulic system, fixing steelframe is welded and fixed with ground pre-embedded steel slab, lifting steelframe is the carrier of chassis lifting, with fixing steelframe centered assembling, installing the jacking cylinder of hydraulic system between lifting steelframe and fixing steelframe, vibration table is arranged on fixing steelframe.Vibration table is provided with clamping device, vibrating motor.Fixing steelframe is provided with assistance for lifting is spacing and vibration damping device.Vibration table is also equipped with damping spring seat, clamping cylinder seat and hoisting board.The deficiencies in the prior art part is: structure is complicated, capacity usage ratio is relatively low, control accuracy is poor
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of magnetic force actuated by cams unit and vibration platform apparatus and linear drive apparatus.
According to a kind of magnetic force actuated by cams unit that this utility model provides, including cam, push rod, the first magnet, the second magnet;
First magnet is fastened on cam;
The magnetic force that first magnet is applied by the second magnet, it is possible to drive the first magnet band moving cam synchronous axial system;Cam rotation rear drive pushrod movement.
Preferably, cam adopts a pair conjugate cam;
The pair of conjugate cam supports axle around cam and rotates, and is respectively fitted with the first magnet;
The opposite face of the pair of conjugate cam is respectively arranged with the annular groove that contours profiles is consistent;
One end of push rod is provided with push rod supporting axle, and two groove bearings are separately mounted to the two ends of push rod supporting axle, and the two groove bearing is respectively disposed in the respective annular groove of the pair of conjugate cam;Groove bearing can only annularly concave slot sports;
Push rod is led by the linear bearing being fastenedly connected on the supporting plate;
Two conjugate cams in the pair of conjugate cam under the magnetic force that the second magnet applies, can turn to synchronous axial system on the contrary, make push rod only export the motion of rectilinear direction.
Preferably, push rod one end connects roller, and the curved surface profile of cam drives push rod by roller;
First magnet includes one or more permanent magnet;
Second magnet includes multiple electromagnet, and wherein, multiple electromagnets are respectively provided with independent current supply circuit, and namely the first magnet individually can be applied magnetic force by multiple electromagnets;
Permanent magnet is flat, and multiple electromagnets are arranged in side or the both sides of permanent magnet;
First magnet, the second magnet interact and form magnetic structure, and under the overall excitation of the plurality of electromagnet, the first magnet is by the angular turn less corresponding to magnetic flux in described magnetic structure to the angle bigger corresponding to magnetic flux in described magnetic structure.
Preferably, multiple permanent magnets are uniformly distributed in the circumferential;Multiple electromagnets are uniformly distributed in the circumferential.
Preferably, the quantity of the first magnet and the second magnet is one or more groups;
In often organizing the first magnet and the second magnet, the quantity being positioned at the electromagnet of the first magnet either side is equal to the quantity of permanent magnet.
According to a kind of single shaft vibration platform apparatus that this utility model provides, including platform, also include above-mentioned magnetic force actuated by cams unit;
The quantity of the described magnetic force actuated by cams unit being evenly arranged in the circumferential is at least 3;
The push rod of described magnetic force actuated by cams unit is connected to platform.
According to a kind of multi-freedom-degree vibration table apparatus that this utility model provides, including platform, also include above-mentioned magnetic force actuated by cams unit;
The quantity of described magnetic force actuated by cams unit is at least 3;
Between push rod and the platform of described magnetic force actuated by cams unit hinged.
Linear drive apparatus according to a kind of geometry locking mode that this utility model provides, including framework, also includes above-mentioned magnetic force actuated by cams unit;
The cam of two described magnetic force actuated by cams unit is all fastenedly connected rotating on main shaft, to carry out synchronous rotary motion;
The push rod of two described magnetic force actuated by cams unit, along the radial direction from inside to outside rotating main shaft, each extends over direction in opposite directions and is fastenedly connected to described framework;
The first magnet on the cam of two described magnetic force actuated by cams unit, is encouraged by same second magnet, or is encouraged by the second different magnets respectively.
Linear drive apparatus according to a kind of geometry locking mode that this utility model provides, including framework, also includes above-mentioned magnetic force actuated by cams unit;
The cam of described magnetic force actuated by cams unit is constant diameter cam;
The two ends of described constant diameter cam drive push rod A and push rod B respectively through roller;
Push rod A, push rod B, along the radial direction from inside to outside rotating main shaft, each extend over direction in opposite directions and are fastenedly connected to described framework.
Compared with prior art, this utility model has following beneficial effect:
1, electromagnet and permanent magnet is combined by this utility model, and capacity usage ratio is high;And when motion parts is permanent magnet, it is not necessary to the structures such as brush are energized, therefore simple in construction;
2, this utility model adopts direct drive mode: permanent magnet is embedded in cam, and electromagnetic force driving cam suffered by permanent magnet rotates, and cam outline can export specific motion, is changed into the rectilinear motion of certain rule by push rod;
3, driving moment of the present utility model is big: solenoid and permanent magnet magnetic clearance between poles can be only small, therefore just can form very big shearing captivation, thus forming very big torque.
4, in this utility model, the quantity of permanent magnet and solenoid and position grouping relation between the two can be arranged flexibly, when multiple permanent magnets and the combination of multiple solenoids, it is possible to improve output torque.
5, structurally to achieve geometry sealed for this utility model, thus avoiding the parts such as the push rod phenomenon of upspringing when high-speed high frequency moves back and forth.
Accompanying drawing explanation
By reading detailed description non-limiting example made with reference to the following drawings, other features, objects and advantages of the present utility model will become more apparent upon:
Fig. 1 is the three-dimensional structure diagram of this utility model first embodiment.
Fig. 2 is the structure chart of single conjugate cam in this utility model first embodiment.
Fig. 3 is the detailed structure view of this utility model first embodiment.
Fig. 4 is the fundamental diagram of single conjugate cam in this utility model first embodiment.
Fig. 5 is single conjugate cam rotation comparison diagram before and after excitation in this utility model first embodiment, wherein, before the corresponding excitation of Fig. 5 (a), after the corresponding excitation of Fig. 5 (b).
Fig. 6 is the exiting principle figure of single conjugate cam in this utility model first embodiment.
Fig. 7, Fig. 8 illustrate double cam action principle.
Fig. 9, Figure 10 are the structure chart of this utility model the second embodiment.
Figure 11 to Figure 14 illustrates the different modes of emplacements of solenoid and permanent magnet.
Figure 15, Figure 16, Figure 17 illustrate monoplane many permanent magnets arrangements different in this utility model the 3rd embodiment.
Figure 18, Figure 19 illustrate the single permanent magnet arrangements of every layer of many planes different in this utility model the 3rd embodiment.
Figure 20 illustrates the multiple permanent magnet arrangements of every layer of many planes different in this utility model the 3rd embodiment.
Figure 21, Figure 22 illustrate the different modes of each layer of permanent magnet arrangement in Figure 20.
Figure 23, Figure 24 are the structural representation of this utility model the 4th two kinds of different solenoid arrangements of embodiment.
Figure 25, Figure 26 are the structural representation of this utility model the 5th two kinds of different articulated manner of embodiment.
Figure 27 is the structure chart of this utility model sixth embodiment.
Figure 28 is the structure chart of permanent magnet (circle represents) and coil (difference number represents) in this utility model sixth embodiment cam.
Figure 29 is the side view of electromagnetic loop bracket in this utility model sixth embodiment.
Figure 30 is the structure chart of this utility model the 7th embodiment.
In figure:
1-push rod 11-o 21-solenoid
2-linear bearing 12-roller 22-plane constant diameter cam
3-upper bearing plate 13-cam 23-key
4-conjugate cam 14-solenoid A24-push rod A
5-groove bearing 15-solenoid B25-push rod B
6-permanent magnet 16-cam shaft
7-cam block bearing 17-rotates main shaft
8-cam supporting axle 18-magnetic force actuated by cams unit
9-groove 19-electromagnetic loop bracket
10-push rod supporting axle 20-framework
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail.Following example will assist in those skilled in the art and are further appreciated by this utility model, but do not limit this utility model in any form.It should be pointed out that, to those skilled in the art, without departing from the concept of the premise utility, it is also possible to make some changes and improvements.These broadly fall into protection domain of the present utility model.
Basis embodiment
In the embodiment of basis of the present utility model, according to a kind of magnetic force actuated by cams unit that this utility model provides, including cam, push rod, the first magnet, the second magnet;First magnet is fastened on cam;The magnetic force that first magnet is applied by the second magnet, it is possible to drive the first magnet band moving cam synchronous axial system;Cam rotation rear drive pushrod movement.
First embodiment
The preference of embodiment based on first embodiment of the present utility model.As shown in Figures 1 to 6, in the present embodiment, cam adopts a pair conjugate cam;The pair of conjugate cam supports axle around cam and rotates, and is respectively fitted with the first magnet (permanent magnet);The opposite face of the pair of conjugate cam is respectively arranged with the annular groove that contours profiles is consistent;One end of push rod is provided with push rod supporting axle, and two groove bearings are separately mounted to the two ends of push rod supporting axle, and the two groove bearing is respectively disposed in the respective annular groove of the pair of conjugate cam;Groove bearing can only annularly concave slot sports;Push rod is led by the linear bearing being fastenedly connected on the supporting plate;Two conjugate cams in the pair of conjugate cam under the magnetic force that the second magnet applies, can turn to synchronous axial system on the contrary, make push rod only export the motion of rectilinear direction.
Specifically, as it is shown on figure 3, Fig. 4 is the front elevation of the connected mode of a cam and push rod in conjugate cam, Fig. 3 is the sectional view of a cam and push rod in conjugate cam.A pair conjugate cam 4 is supported by cam supporting axle 8 by cam block bearing 7.Conjugate cam 4 can support axle 8 around cam and rotate.Permanent magnet 6 is inlayed and is fixed on conjugate cam 4, and permanent magnet 6 can provide the torque of a pair conjugate cam under the effect of external electromagnetic field, makes to move round about between a pair conjugate cam.The contours profiles of the opposite face upper groove 9 of a pair conjugate cam 4 is living.Two groove bearings 5 are placed in the groove of a pair conjugate cam 4 respectively, carry out the motion of minimal clearance only along the profile within groove bearing 5 groove, and are connected with upper brace by push rod 1.Effect by the contrary electromagnetic field of outside direction, it is possible to making a pair conjugate cam turn to contrary and synchronous axial system, simultaneously under the restriction of a pair groove bearing 5, push rod 1 can only do vertical direction rectilinear motion.By controlling rotating speed and the angular acceleration of cam, it is possible to obtain required speed and acceleration at push rod 1 end.Push rod 1 is led by the linear bearing 2 being fixed on upper bearing plate 3.
The driving principle of the present embodiment is as shown in Figure 5, Figure 6.For convenience of observing, the cam only depicted in Figure 5 in a pair conjugate cam is being driven state vs's situation of front and back.The both sides of each conjugate cam are provided with four solenoids, and solenoid is energized in a certain way and can produce required electromagnetic field.Electromagnetic field as shown in Fig. 5 (a), can produce clockwise torque to permanent magnet in a conjugate cam.Under torque, conjugate cam rotates and drives groove bearing relative motion in the groove extended along specific curves of push rod end, and by the restriction of a pair conjugate cam, push rod only exports the motion of vertical direction.Push rod is led by linear bearing simultaneously.Change energising direction, cam can be made to reverse, export desirable movement.
Looking vertically in figure 6, the driving solenoid of two cams overlaps, and the magnetic outside bracket is extremely close to the driving o of the conjugate cam of interpreting blueprints person, and the magnetic pole in bracket is the driving o of the conjugate cam away from interpreting blueprints person.The limit state of conjugate cam motion it is shown in Fig. 6.
The principle of conjugate cam is as shown in Figure 7, Figure 8.As shown in Figure 7, for single cam model of action, under the driving of single cam, push rod can export power straight up, but also roller and push rod can be produced bigger cross force simultaneously, supporting and guiding mechanism are created unwanted active force by cross force, thus increasing transversely deforming and sliding friction.As shown in Figure 8, for double cam model of action, under the driving of two cams, push rod can export power straight up.Owing to two cams relatively rotate, and roller being acted on simultaneously, therefore cross force suffered by roller and push rod can be cancelled out each other, vertical direction power increases one times simultaneously.
Second embodiment
The preference of embodiment based on second embodiment of the present utility model.As shown in Figure 9, Figure 10, in the present embodiment, push rod one end connects roller, and the curved surface profile of cam drives push rod by roller;First magnet includes one or more permanent magnet;Second magnet includes multiple electromagnet, and wherein, multiple electromagnets are respectively provided with independent current supply circuit, and namely the first magnet individually can be applied magnetic force by multiple electromagnets;Permanent magnet is flat, and multiple electromagnets are arranged in side or the both sides of permanent magnet;First magnet, the second magnet interact and form magnetic structure, and under the overall excitation of the plurality of electromagnet, the first magnet is by the angular turn less corresponding to magnetic flux in described magnetic structure to the angle bigger corresponding to magnetic flux in described magnetic structure.
Specifically, as described in Figure 9, the second magnet includes solenoid A and solenoid B.As shown in Figure 9, Figure 10, solenoid A, solenoid B and cam shaft 16 are all fixing, and solenoid A, solenoid B both can be placed on the same side of cam 13, it is also possible to be placed on the both sides of cam 13.Cam 13 can rotate around cam shaft 16, and flat permanent magnet 6 inlays cooperation in cam 13.Cam 13 upper surface has certain curved surface profile, it is possible to by roller 12 and push rod 1 jack-up, makes ionized motion platform output certain movement rule.Linear bearing 2 play the guiding role.
As shown in figures 11-14, in figure, difference number represents the vertical paper of magnetic direction inwards, and point represents that the vertical paper of magnetic direction is outside.When solenoid A and solenoid B energising formation direction is perpendicular to paper magnetic field inwards, permanent magnet 6 is had sucking action by solenoid A and B simultaneously.If now solenoid A and solenoid B electrical current are equal, then permanent magnet 6 will be equilibrated at middle position.When only solenoid A energising forms the vertical paper in direction magnetic field inwards, as shown in figure 11, cam 13 turns left around cam shaft 16, and finally stable at solenoid A place.When only solenoid B energising forms the vertical paper in direction magnetic field inwards, as shown in figure 12, cam 13 turns right around cam shaft 16, and finally stable at solenoid B place.Solenoid A, solenoid B can also being passed to electric current in opposite direction thus forming relative magnetic field, combined effect is in the permanent magnet 6 of cam 13 so that produce bigger turning moment.And in the last moment of motion, only one of which coil electricity, make cam 13 stable at solenoid A or solenoid B location place.
The advantage of the present embodiment is: (1) electromagnet and permanent magnet combines, and capacity usage ratio is high;And motion parts is permanent magnet, it is not necessary to the structures such as brush are energized, therefore simple in construction;(2) directly driving: permanent magnet is embedded in cam, electromagnetic force driving cam suffered by permanent magnet rotates, and cam outline can export specific motion, is changed into the rectilinear motion of certain rule by push rod;(3) driving moment is big: solenoid and permanent magnet magnetic clearance between poles can be only small, therefore just can form very big shearing captivation, thus forming very big torque;(4) processing simple installation: large flat permanent magnet is better processed than complex-shaped permanent magnet, the installation of permanent magnet is fixing therefore convenient.Additionally this driving mechanism overall structure is simple, easy for installation.
3rd embodiment
The preference of embodiment based on 3rd embodiment of the present utility model, is also the change case of the second embodiment.In the present embodiment, the quantity of the first magnet and the second magnet is one or more groups;In often organizing the first magnet and the second magnet, the quantity being positioned at the electromagnet of the first magnet either side is equal to the quantity of permanent magnet.Multiple permanent magnets are uniformly distributed in the circumferential;Multiple electromagnets are uniformly distributed in the circumferential.
Specifically, the first magnet and the second magnet can adopt various ways.As shown in Figure 15, Figure 16, Figure 17, for the arrangement of the many permanent magnets in monoplane, this arrangement can make cam in rotary movement, and multiple permanent magnets are according to different order stress simultaneously so that more steady when cam rotates, output torque is more stable.As shown in figure 19, for the arrangement of the single permanent magnet of every layer of many planes, this arrangement can make full use of the magnetic field that each solenoid produces, and makes different cam be subject to power and the moment of equidirectional simultaneously.If cam is connected together, then output torque can be multiplied.As shown in Figure 20, Figure 21, Figure 22, for the arrangement of the many permanent magnet of every layer of many planes, the output torque of this mode is greatly improved, and the rotation of cam is more steady.
4th embodiment
In the present embodiment, this utility model provides a kind of single shaft vibration platform apparatus, including platform, also includes described magnetic force actuated by cams unit;The quantity of the described magnetic force actuated by cams unit being evenly arranged in the circumferential is at least 3;The push rod of described magnetic force actuated by cams unit is connected to platform.
Specifically, as shown in Figure 23, Figure 24, solenoid effect, it is possible in figure 3 cams are synchronized with the movement, thus driving platform to move along Z-direction.Wherein as shown in figure 24, it is only necessary to three solenoids (in figure, meshing is solenoid) just can encourage to drive platform to produce vibration, therefore has the feature that magnetic field utilization rate is high.
5th embodiment
In the present embodiment, this utility model provides a kind of multi-freedom-degree vibration table apparatus, including platform, also includes described magnetic force actuated by cams unit;The quantity of described magnetic force actuated by cams unit is at least 3;Between push rod and the platform of described magnetic force actuated by cams unit hinged, such that it is able to realize Z, α, β three degree of freedom of platform.
As shown in figure 25, adopting ball pivot form to be connected between platform with cam, wherein, the push rod of described magnetic force actuated by cams unit can only move at vertical direction.Push rod in each branch road passes through a ball pivot connection sliding block, and slide block is connected to platform leg.Three branch combinations collectively constitute the vibration platen of Three Degree Of Freedom together.
As shown in figure 26, adopting Hooke's hinge form to be connected between platform with cam, wherein, the push rod of described magnetic force actuated by cams unit can only move at vertical direction.Push rod in each branch road passes through a Hooke's hinge connecting platform.Three branch combinations collectively constitute the vibration platen of Three Degree Of Freedom together.
Sixth embodiment
In the present embodiment, this utility model provides the linear drive apparatus of a kind of geometry locking mode, including framework, also includes described magnetic force actuated by cams unit.As shown in figure 27, the cam of two described magnetic force actuated by cams unit is all fastenedly connected rotating on main shaft, to carry out synchronous rotary motion;The push rod of two described magnetic force actuated by cams unit, along the radial direction from inside to outside rotating main shaft, each extends over direction in opposite directions and is fastenedly connected to described framework;The first magnet on the cam of two described magnetic force actuated by cams unit, is encouraged by same second magnet, or is encouraged by the second different magnets respectively.
The operation principle of the present embodiment is: Figure 27 is positioned at the cam of the left and right sides angled with rotate main shaft 17 and be fixed together, it is possible to do synchronous rotary motion.Push rod 1 and framework 6 are fixed together, it is possible under the effect of outside guiding mechanism, move at vertical direction.Permanent magnet 6 is embedded in cam 13.Solenoid 21 is placed on electromagnetic loop bracket 19, and electromagnetic loop bracket 19 is connected with outer base, transfixion.
When the solenoid 21 in electromagnetic loop bracket 19 is with certain order alternate energisation, the magnetic field rotated can be produced, the action of a magnetic field is in the permanent magnet 6 being embedded on cam 13, it is made to produce turning moment, driving cam 13 rotates, thus driving the overall structure that push rod 1, roller 12, framework 20 form to move up and down.When moving upward, left cam works.When moving downward, right cam works.Realize in this way the geometry of actuated by cams motion is closed, thus avoiding the parts phenomenon of upspringing when high-speed high frequency moves back and forth of push rod 1, roller 12, framework 20 composition.
In the present embodiment, feature of the present utility model is: achieve closing on (1) geometry, it is to avoid bounce when high-speed high frequency moves back and forth;(2) solenoid acts on two cams with permanent magnet, and magnetic energy utilization rate is high;(3) quantity of solenoid and permanent magnet can change, flexible structure.
7th embodiment
In the present embodiment, this utility model provides the linear drive apparatus of a kind of geometry locking mode, as shown in figure 30, including framework, also includes described magnetic force actuated by cams unit;The cam of described magnetic force actuated by cams unit is constant diameter cam;The two ends of described constant diameter cam drive push rod A and push rod B respectively through roller;Push rod A, push rod B, along the radial direction from inside to outside rotating main shaft, each extend over direction in opposite directions and are fastenedly connected to described framework.
Specifically, the operation principle of the present embodiment is: push rod and framework are fixed together, it is possible under the effect of outside guiding mechanism, moves at vertical direction.Permanent magnet 6 is embedded in plane constant diameter cam 22.Middle plane constant diameter cam is fixed together with rotating main shaft 17, it is possible to do synchronous rotary motion.Solenoid 21 is placed on electromagnetic loop bracket 19, and the solenoid 19 of both sides is connected with outer base, transfixion.When the solenoid 21 in electromagnetic loop bracket 19 is with certain order alternate energisation, the magnetic field rotated can be produced, the action of a magnetic field is in the permanent magnet 6 being embedded on plane constant diameter cam 22, it is made to produce turning moment, driving cam 4 rotates, thus driving the overall structure that push rod 1, roller 12, framework 20 form to move up and down.In the process of whole motion, constant diameter cam remains with upper lower roller and contacts, it is achieved the geometry in structure is sealed, thus avoiding the parts phenomenon of upspringing when high-speed high frequency moves back and forth of push rod 1, roller 12, framework 20 composition.
In the present embodiment, feature of the present utility model is: (1) can realize the closing on geometry by a cam, it is to avoid bounce when high-speed high frequency moves back and forth, and facilitates processing and manufacturing, simple in construction, and error component is few;(2) being acted on by two set solenoids by a cam being inlaid with permanent magnet, active force is big, and suffered by cam, axial force is cancelled out each other, and is not subjected to axial side force, is solely subjected to radial force simultaneously, structure thus simple;(3) quantity of solenoid and permanent magnet can change, flexible structure.
Above specific embodiment of the utility model is described.It is to be appreciated that this utility model is not limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, and this has no effect on flesh and blood of the present utility model.When not conflicting, embodiments herein and the feature in embodiment can arbitrarily be mutually combined.
Claims (9)
1. a magnetic force actuated by cams unit, it is characterised in that include cam, push rod, the first magnet, the second magnet;
First magnet is fastened on cam;
The magnetic force that first magnet is applied by the second magnet, it is possible to drive the first magnet band moving cam synchronous axial system;Cam rotation rear drive pushrod movement.
2. magnetic force actuated by cams unit according to claim 1, it is characterised in that cam adopts a pair conjugate cam;
The pair of conjugate cam supports axle around cam and rotates, and is respectively fitted with the first magnet;
The opposite face of the pair of conjugate cam is respectively arranged with the annular groove that contours profiles is consistent;
One end of push rod is provided with push rod supporting axle, and two groove bearings are separately mounted to the two ends of push rod supporting axle, and the two groove bearing is respectively disposed in the respective annular groove of the pair of conjugate cam;Groove bearing can only annularly concave slot sports;
Push rod is led by the linear bearing being fastenedly connected on the supporting plate;
Two conjugate cams in the pair of conjugate cam under the magnetic force that the second magnet applies, can turn to synchronous axial system on the contrary, make push rod only export the motion of rectilinear direction.
3. magnetic force actuated by cams unit according to claim 1, it is characterised in that push rod one end connects roller, and the curved surface profile of cam drives push rod by roller;
First magnet includes one or more permanent magnet;
Second magnet includes multiple electromagnet, and wherein, multiple electromagnets are respectively provided with independent current supply circuit, and namely the first magnet individually can be applied magnetic force by multiple electromagnets;
Permanent magnet is flat, and multiple electromagnets are arranged in side or the both sides of permanent magnet;
First magnet, the second magnet interact and form magnetic structure, and under the overall excitation of the plurality of electromagnet, the first magnet is by the angular turn less corresponding to magnetic flux in described magnetic structure to the angle bigger corresponding to magnetic flux in described magnetic structure.
4. magnetic force actuated by cams unit according to claim 3, it is characterised in that multiple permanent magnets are uniformly distributed in the circumferential;Multiple electromagnets are uniformly distributed in the circumferential.
5. magnetic force actuated by cams unit according to claim 3, it is characterised in that the quantity of the first magnet and the second magnet is one or more groups;
In often organizing the first magnet and the second magnet, the quantity being positioned at the electromagnet of the first magnet either side is equal to the quantity of permanent magnet.
6. a single shaft vibration platform apparatus, including platform, it is characterised in that also include the magnetic force actuated by cams unit according to any one of claim 1 to 5;
The quantity of the described magnetic force actuated by cams unit being evenly arranged in the circumferential is at least 3;
The push rod of described magnetic force actuated by cams unit is connected to platform.
7. a multi-freedom-degree vibration table apparatus, including platform, it is characterised in that also include the magnetic force actuated by cams unit according to any one of claim 1 to 5;
The quantity of described magnetic force actuated by cams unit is at least 3;
Between push rod and the platform of described magnetic force actuated by cams unit hinged.
8. a linear drive apparatus for geometry locking mode, including framework, it is characterised in that also include the magnetic force actuated by cams unit according to any one of claim 1 to 5;
The cam of two described magnetic force actuated by cams unit is all fastenedly connected rotating on main shaft, to carry out synchronous rotary motion;
The push rod of two described magnetic force actuated by cams unit, along the radial direction from inside to outside rotating main shaft, each extends over direction in opposite directions and is fastenedly connected to described framework;
The first magnet on the cam of two described magnetic force actuated by cams unit, is encouraged by same second magnet, or is encouraged by the second different magnets respectively.
9. a linear drive apparatus for geometry locking mode, including framework, it is characterised in that also include the magnetic force actuated by cams unit according to any one of claim 1 to 5;
The cam of described magnetic force actuated by cams unit is constant diameter cam;
The two ends of described constant diameter cam drive push rod A and push rod B respectively through roller;
Push rod A, push rod B, along the radial direction from inside to outside rotating main shaft, each extend over direction in opposite directions and are fastenedly connected to described framework.
Priority Applications (1)
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CN201521135330.8U CN205377552U (en) | 2015-12-31 | 2015-12-31 | Magnetic force cam drive unit and shaking table device and sharp drive arrangement |
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CN201521135330.8U CN205377552U (en) | 2015-12-31 | 2015-12-31 | Magnetic force cam drive unit and shaking table device and sharp drive arrangement |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105429353A (en) * | 2015-12-31 | 2016-03-23 | 上海交通大学 | Magnetic cam driving unit, vibration table device and linear driving device |
CN107781339A (en) * | 2016-08-30 | 2018-03-09 | 株洲时代新材料科技股份有限公司 | A kind of electromagnetic actuator |
CN108115755A (en) * | 2018-01-05 | 2018-06-05 | 南京工程学院 | A kind of mechanical torsional oscillation platform based on lever and cam mechanism |
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2015
- 2015-12-31 CN CN201521135330.8U patent/CN205377552U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105429353A (en) * | 2015-12-31 | 2016-03-23 | 上海交通大学 | Magnetic cam driving unit, vibration table device and linear driving device |
CN105429353B (en) * | 2015-12-31 | 2018-04-17 | 上海交通大学 | Magnetic force actuated by cams unit and vibration platform apparatus and linear drive apparatus |
CN107781339A (en) * | 2016-08-30 | 2018-03-09 | 株洲时代新材料科技股份有限公司 | A kind of electromagnetic actuator |
CN107781339B (en) * | 2016-08-30 | 2020-03-31 | 株洲时代新材料科技股份有限公司 | Electromagnetic actuator |
CN108115755A (en) * | 2018-01-05 | 2018-06-05 | 南京工程学院 | A kind of mechanical torsional oscillation platform based on lever and cam mechanism |
CN108115755B (en) * | 2018-01-05 | 2019-06-25 | 南京工程学院 | A kind of mechanical torsional oscillation platform based on lever and cam mechanism |
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