CN201887641U - Electromagnetic clamping mechanism and inchworm motion linear motor thereof - Google Patents

Electromagnetic clamping mechanism and inchworm motion linear motor thereof Download PDF

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Publication number
CN201887641U
CN201887641U CN2010206039553U CN201020603955U CN201887641U CN 201887641 U CN201887641 U CN 201887641U CN 2010206039553 U CN2010206039553 U CN 2010206039553U CN 201020603955 U CN201020603955 U CN 201020603955U CN 201887641 U CN201887641 U CN 201887641U
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CN
China
Prior art keywords
housing
output shaft
rolling
clamping institution
electromagnetism clamping
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Expired - Fee Related
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CN2010206039553U
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Chinese (zh)
Inventor
杨斌堂
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

An electromagnetic clamping mechanism and an inchworm motion linear motor thereof belong to the technical field of electromagnetic motors, and comprise more than two paired electromagnetic clamping mechanisms symmetrically connected with each other. Each mechanism includes a magnetic field generating device, a roll, an output shaft and a casing, wherein the magnetic field generating device is fixedly arranged outside the casing, and the casing and the roll are sequentially sleeved outside the output shaft. Mechanical rigid locking and releasing states are controlled flexibly by electromagnetism, and an electric control device with ultrahigh clamping force can be manufactured. An ultrahigh-load precisely moving driving device or linear motor can be manufactured by the aid of the clamping device.

Description

Electromagnetism clamping institution and inchworm motion linear electric motors thereof
Technical field
The utility model relates to a kind of device of electromagnetic machine technical field, specifically is a kind of electromagnetism clamping institution and inchworm motion linear electric motors thereof.
Background technology
In the last few years, electricity, the development of magnetostriction Driving technique had produced as intellectual materials such as giant magnetostriction material, electroceramics and magnetostriction marmems rapidly.It is big that these intellectual materials have energy density, the power output height, and therefore advantage such as telescopic shape change is accurate can research and develop high-performance driver and linear electric motors based on these intellectual materials.But be based on the linear electric motors of intellectual material development, particularly for inchworm motion class linear electric motors, owing to there is not the clamping institution of Performance Match, and the big output stress performance of the intellectual material that makes can not be not fully exerted, and causes this class motor can not be used for super large load driving, transmission field.
Find through literature search prior art, Jaehwan Kim etc. are at " Mechatronics " (mechatronics periodical, which 525-542 page or leaf of 2002 the 12nd phases) the paper A hybrid inchworm linear motor (hybrid inchworm motion linear electric motors) that delivers on, the design of these linear electric motors is made up of a magnetostriction mechanism and two piezoelectricity telescoping mechanisms based on inchworm motion mechanism; Magnetostriction mechanism is used for producing the inchworm motion straight-line displacement, and two piezoelectricity telescoping mechanisms produce the clamp action as the looper clamping institution.The piezoelectricity clamping institution that this motor adopts, because its use is the fragility piezoelectric, it is anti-extrusion limited in one's ability, excessive clamp and pressure can be crushed piezoelectric, cause the clamp function forfeiture, therefore the performance that its magnetostriction mechanism that makes linear drives can produce super large output stress can't realize.
The utility model content
The utility model provides a kind of electromagnetism clamping institution and inchworm motion linear electric motors thereof at the prior art above shortcomings, by the sensitive control of electromagnetism mechanical rigid locking and release condition, and can make automatically controlled super large clamp power apparatus.Utilize this clamp device can make super large load, accurate drive unit or the linear electric motors that move.
The utility model is achieved through the following technical solutions:
The utility model relates to a kind of electromagnetism clamping institution, comprising: magnetic field generation device, rolling element, output shaft and housing, and wherein: magnetic field generation device is fixedly set in the outside of housing, and housing and rolling element are socketed on the outside of output shaft successively.
The section of described housing is the hexagonal structure or the spindle of isosceles trapezoid, mirror image symmetry;
Described rolling element is that ferromagnetic material or ferromagnetic-non-ferromagnetic composite material are made;
Described rolling element is specially more than one ball or roller bearing.
Described output shaft is single or rod member, plate, cable or the wirerope of the many rigidity that are connected in series by the flexible expander in centre.
Described magnetic field generation device is any one in the following structure:
A) be arranged at two groups of solenoids of housing both sides respectively;
B) be arranged at two groups of permanent magnets of housing both sides respectively;
C) be arranged at the solenoid and the permanent magnet of housing both sides respectively;
The utility model relates to a kind of inchworm motion linear electric motors, comprise more than two the electromagnetism clamping institution that is provided with in pairs and is connected symmetrically by the flexible expander in centre, these inchworm motion linear electric motors realize that by alternately controlling the mode that side chucking opposite side discharges in a pair of electromagnetism clamping institution long distance moves or reciprocating motion.
The utility model carries out work in the following manner:
Output shaft connects housing under the initial condition, and the enclosure interior output shaft respectively is provided with an above rolling element in both sides up and down, and rolling element is freely placed in housing.Respectively be provided with a solenoid in two outer faces of housing, output shaft also runs through this two solenoids, and housing maintains static.
When housing left end solenoid was switched on, the rolling element that is in free state was adsorbed near housing and does inwall one side owing to magnetic attraction.Because housing left end inwall place cavity is slightly less than the size sum of output shaft and the upper and lower survey rolling element of output shaft on equidirectional at the cavity size on the vertical output axle moving direction, so when rolling element is adsorbed, rolling element can be stuck between output shaft and housing (upper and lower side) inwall, and can not finally touch the left side wall of housing.At this moment, be moved to the left when dragging output shaft, because frictional force effect, output shaft can drive rolling element, make rolling element be stuck in more tightly between output shaft and housing (upper and lower side) inwall, cause output shaft to be locked by clamp, and coupling mechanism force increases with drawing force left, drawing force kilocalorie more must be tight more.At this moment, output shaft is in the one way clamp gripping orientation that is moved to the left chucking.
When giving the outage of housing left end solenoid, give the energising of housing right-hand member solenoid simultaneously, rolling element is attracted to and surveys the place, right side in the housing.Because housing right-hand member inwall place cavity is slightly larger than the output shaft on equidirectional and the size sum of the upper and lower survey rolling element of output shaft at the cavity size on the vertical output axle moving direction, so when rolling element is adsorbed, rolling element can not be stuck between output shaft and housing (upper and lower side) inwall, and can finally touch the right side wall of housing.At this moment, output shaft can be dragged by left and right, and output shaft is in the clamp release condition.
Building block is identical, when housing becomes symmetrical when trapezoidal, solenoid on-off action mechanism is the same, when needs restriction moving body is moved to the left, then attract rolling element near surveying wall in the housing left side, when needs restriction moving body moves right, then attract rolling element near surveying wall in the housing right side, output shaft can be tightened by two-way clamp like this.In such cases, output shaft can be realized two-way gripping orientation.
Identical when building block, solenoid on-off action mechanism is the same, when the needs moving body is moved to the left, then attract rolling element near surveying wall in the housing right side, when the needs moving body moves right, then attract rolling element near surveying wall in the housing left side, output shaft can two-wayly move like this.In such cases, output shaft can be realized two-way release condition.
For above clamping institution, can change any one coil in the solenoid at housing two ends into permanent magnet in its building block.The realization and the aforementioned mechanism of action of clamp chucking and release condition are identical.The electromagnetic force that just attracts rolling element to roll is the result of the vector force action of the magnetic field force that produces of solenoid and permanent magnetism field force.When need be with rolling element during near the inner walls of solenoid one side, then solenoid is fed stronger electric current and produce the stronger magnetic attraction opposite with permanent magnetism suction, inhale moving rolling element near solenoid one side sidewall.When need be with rolling element during near the inner walls of permanent magnet one side, then solenoid is fed less current or feeding and magnetic field of permanent magnet electromagnetic field electric current or outage in the same way, then permanent magnetism suction or electricity, the compound suction of permanent magnetism are inhaled moving rolling element near permanent magnet one side sidewall.Like this, can control the position of rolling element in housing, thereby also can realize the clamp chucking and the clamp of output shaft are discharged by a solenoid.And,, can realize one way clamp, stopping means under the powering-off state based on this permanent magnetism suction.Permanent magnet places a housing left side to survey, and when outage, output shaft is moved to the left by clamp and limits so.Permanent magnet places the right survey of housing, and when outage, output shaft can be in release condition all the time so.
When permanent magnet is all used in the housing both sides, and its inside has the rolling element of symmetrical distribution, and output shaft will tighten and be motionless all the time so, can realize permanent clamp of a kind of permanent magnetism suction and fixing device like this.
Compared with prior art, the utlity model has following advantage: 1. mechanism is simple, and building block is few, can realize huge clamp clamping force; 2. electromagnetic signal control, clamp and motor movement control are sensitive, convenient; 3. be a kind of basic clamp parts, can be widely used in the multiple clamp clamping body field that needs.4. it is low to drive clamp process energy consumption, has no energy consumption chucking performance.
Mechanism of the present utility model can be used for developing the instrument and equipment that requires to produce big displacement, high accuracy driving function, and, can be widely used in fields such as driver (actuator), brake, transducer, motor, vibration and control appliance, robot, accurate manufacturing, biomedical engineering to having the improvement of electricity, magnetostriction driving material application apparatus, instrument now.
Description of drawings
Fig. 1 is the structural representation based on the unidirectional electromagnetism clamp of inchworm motion linear electric motors clamping body;
Fig. 2 is the structural representation based on inchworm motion linear electric motors bi-directional electromagnetic clamp clamping body;
Fig. 3 is the structural representation based on the electromagnetism clamp clamping body of inchworm motion linear electric motors of electromagnetism-permanent-magnet-field;
Fig. 4 is two permanent magnetism clamps-position-limit mechanism schematic diagram;
Fig. 5 be an above rolling element effect based on the electromagnetism pincers of inchworm motion linear electric motors chucking position mechanism before work and state and structural representation in the work;
Fig. 6 is two or more structural scheme of mechanism (mechanism is the form that moves of output shaft fixedly) that are combined into the inchworm motion linear electric motors based on inchworm motion electromagnetic linear motor clamp clamping body and flexible expander;
Fig. 7 is two or more structural scheme of mechanism (form that the output shaft fixed mechanism moves) that are combined into the inchworm motion linear electric motors based on inchworm motion electromagnetic linear motor clamp clamping body and flexible expander.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, present embodiment comprises: magnetic field generation device 1, rolling element 2, output shaft 3 and housing 4, and wherein: magnetic field generation device 1 is fixedly set in the outside of housing 4, and housing 4 and rolling element 2 are socketed on the outside of output shaft 3 successively.
As shown in Figures 1 to 4, described magnetic field generation device 1 is for being arranged at two groups of solenoids 5,6 of housing 4 both sides respectively or being arranged at two groups of permanent magnets 7,8 of housing 4 both sides respectively or being arranged at the solenoid 5 and the permanent magnet 7 of housing 4 both sides respectively;
Described rolling element 2 is made for ferromagnetic material or ferromagnetic-non-ferromagnetic composite material;
Described output shaft 3 is rod member, plate, body, cable or the wirerope of single rigidity.
The section of described housing 4 described housings is trapezoidal;
Output shaft 3 connects housing 4 under the initial condition, and housing 4 inner output shafts 3 upper and lower both sides respectively are provided with (as shown in Figure 1) rolling element 2, and rolling element 2 is freely placed in housing 4.Be placed with first solenoid 5 and second solenoid 6 in 4 two outer faces of housing, output shaft 3 also runs through this two solenoids, and housing 4 maintains static.
As shown in Figure 1, during to 5 energisings of housing 4 left ends first solenoid, be in the rolling element 2 of free state because the magnetic attraction effect is adsorbed on close housing 4 left inwall one sides.Because housing 4 left end inwall place cavitys are slightly less than the upper and lower size sum of sidewindering kinetoplast 2 of on equidirectional output shaft 3 and output shaft 3 (position as shown in Figure 1) at the cavity size on vertical output axle 3 moving directions, so when rolling element 2 is adsorbed, rolling element 2 can be stuck between output shaft 3 and housing 4 (upper and lower side) inwall, and can not finally touch the left side wall of housing 4.At this moment, be moved to the left when dragging output shaft 3, because frictional force effect, output shaft 3 can drive rolling element 2, make rolling element 2 be stuck in more tightly between output shaft 3 and housing 4 (upper and lower side) inwall, cause output shaft 3 to be locked by clamp, and coupling mechanism force increases with drawing force left, drawing force kilocalorie more must be tight more.At this moment, output shaft 3 is in the one way clamp gripping orientation that is moved to the left chucking.
When giving housing 4 left ends first solenoid 5 outages, give housing 4 right-hand members second solenoid 6 energisings simultaneously, rolling element 2 is attracted to and surveys the place, right side in the housing 4.Because housing 4 right-hand member inwall place cavitys are slightly larger than the size sum of the upper and lower survey rolling element 2 of output shaft 3 on equidirectional and output shaft 3 (position as shown in Figure 1) at the cavity size on vertical output axle 3 moving directions, so when rolling element is adsorbed, rolling element 2 can not be stuck between output shaft 3 and housing 4 (upper and lower side) inwall, and can finally touch the right side wall of housing 4.At this moment, output shaft 3 can be dragged by left and right, and output shaft 3 is in the clamp release condition.
As shown in Figure 5, be that more than one rolling element is formed for above embodiment rolling element 2, can realize clamp gripping orientation and release condition by Electromagnetic Control.
So far, the unidirectional electromagnetism clamp of output shaft 3 and clamp release two states is achieved relatively.
Embodiment 2
As shown in Figure 2, the section of the housing 4 in the present embodiment is a spindle, is specially the hexagonal structure of mirror image symmetry, and described rolling element 2 is symmetricly set in respectively in the housing 4, and the number of rolling element 2 is a pair of or two pairs.
Described rolling element 2 is specially ball or roller bearing.
As shown in Figure 3 and Figure 4.Clamp chucking is identical with the aforementioned magnetic attraction mechanism of action with the realization of release condition, and the electromagnetic force that just attracts rolling element 2 rollings is the result of the vector force action of the magnetic field force of first solenoid 5 or 6 generations of second solenoid and permanent magnetism field force.When need be with rolling element 2 during near the inwall of the housing 4 of first solenoids 5 or second solenoid, 6 one sides, then first solenoid 5 or second solenoid 6 are fed stronger electric current and produce stronger and the opposite magnetic attraction of permanent magnet 7 suction, inhale the sidewall of moving rolling element 2 near first solenoids 5 or second solenoid, 6 one sides.When need be with rolling element 2 during near the inwall of the housing 4 of permanent magnet 7 one sides, then first solenoid 5 or second solenoid 6 are fed less current or feed and can produce and electromagnetic field electric current or the outage in the same way of permanent magnet 7 magnetic fields, then the suction of permanent magnet 7 or electricity, the compound suction of permanent magnetism are inhaled moving rolling element 2 near permanent magnet 7 one side sidewalls.Like this, can control the position of rolling element 2 in housing 4, thereby also can realize the clamp chucking and the clamp of output shaft 3 are discharged by one first solenoid 5 or second solenoid 6.And,, can realize the output shaft one way clamp under the powering-off state, spacing or release condition based on the suction of this permanent magnet 7.
Shown in Fig. 3 (a), when placing housing 4 left sides, surveys permanent magnet 7, and when outage, output shaft 3 is moved to the left by clamp and limits so.Shown in Fig. 3 (b), permanent magnet 7 places housing 4 right surveys, and when cutting off the power supply so, output shaft 3 can be in release condition all the time.
So far, the unidirectional electromagnetism clamp of the solenoid of output shaft 3 and the coefficient effect of permanent magnet and clamp release two states is achieved relatively.
In addition, the version for as shown in Figure 4 dual permanent-magnet 7,8 for two pairs of rolling elements 2, is adsorbed on respectively on 4 liang of madial walls of housing by permanent magnet 7,8 under the initial condition, and then output shaft 3 can realize that the non-transformer incentive card fastens state.
Embodiment 3
As Fig. 6, shown in Figure 7, relate to a kind of inchworm motion linear electric motors in the present embodiment, comprise: the electromagnetism clamping institutions 9 that are provided with in pairs more than two and connected symmetrically by the flexible expander 10 in centre, these inchworm motion linear electric motors realize that by alternately controlling the mode that side chucking opposite side discharges in a pair of electromagnetism clamping institution long distance moves or reciprocating motion.
Output shaft 3 in the described electromagnetism clamping institution 9 is rod member, plate, cable or the wirerope of the many rigidity that are connected in series by the flexible expander 10 in centre.
Present embodiment is by clamping institution 9 chuckings on the left side of control as the linear electric motors among Fig. 6, Fig. 7 alternately, and the clamping institution 9 on the right discharges, and the output shaft 3 that expander 10 elongations of stretching in the middle of this moment can promote right-hand member moves to right-hand member; Afterwards, the flexible expander 10 the right clamping institutions of control 9 chuckings, discharge flexible expander 10 left end clamping institutions 9, flexible expander 10 in the middle of shrinking then, this moment is because the right-hand member chucking, left end discharges, so motor intermediate expansion body 10 that is to say motor integral body, will move right along with the contraction of the flexible expander 10 in centre.Repeat above process, this motor will add up by the single moving displacement, becomes one and can grow the linear electric motors that distance moves.And,, can realize the reciprocating motion of this motor by the left side of control motor and the precedence of right-hand member clamp.

Claims (8)

1. an electromagnetism clamping institution is characterized in that, comprising: magnetic field generation device, rolling element, output shaft and housing, and wherein: magnetic field generation device is fixedly set in the outside of housing, and housing and rolling element are socketed on the outside of output shaft successively.
2. electromagnetism clamping institution according to claim 1 is characterized in that, described magnetic field generation device is any one in the following structure:
A) be arranged at two groups of solenoids of housing both sides respectively;
B) be arranged at two groups of permanent magnets of housing both sides respectively;
C) be arranged at the solenoid and the permanent magnet of housing both sides respectively.
3. electromagnetism clamping institution according to claim 1 is characterized in that, the section of described housing is the hexagonal structure or the spindle of isosceles trapezoid, mirror image symmetry.
4. electromagnetism clamping institution according to claim 1 is characterized in that, described rolling element is that ferromagnetic material or ferromagnetic-non-ferromagnetic composite material are made.
5. electromagnetism clamping institution according to claim 1 is characterized in that described rolling element is specially more than one ball or roller bearing.
6. electromagnetism clamping institution according to claim 1 is characterized in that, described output shaft is single or many rigid bar, plate, cable or the wireropes that are connected in series by the flexible expander in centre.
7. electromagnetism clamping institution according to claim 1 is characterized in that, described housing is the hexagonal structure of isosceles trapezoid or mirror image symmetry.
8. inchworm motion linear electric motors, it is characterized in that, comprise more than two be provided with in pairs and by the flexible expander in centre connect symmetrically as the described electromagnetism clamping institution of above-mentioned arbitrary claim, these inchworm motion linear electric motors realize that by alternately controlling the mode that side chucking opposite side discharges in a pair of electromagnetism clamping institution long distance moves or reciprocating motion.
CN2010206039553U 2010-11-12 2010-11-12 Electromagnetic clamping mechanism and inchworm motion linear motor thereof Expired - Fee Related CN201887641U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976932A (en) * 2010-11-12 2011-02-16 上海交通大学 Inchworm motion linear electric motor based on electromagnetic clamping mechanism
CN102291041A (en) * 2011-08-25 2011-12-21 苏州海兹思纳米科技有限公司 Nano motor based on inchworm motion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976932A (en) * 2010-11-12 2011-02-16 上海交通大学 Inchworm motion linear electric motor based on electromagnetic clamping mechanism
WO2012062034A1 (en) * 2010-11-12 2012-05-18 上海交通大学 Inchworm-motion linear motor based on electromagnetic clamping mechanisms
CN101976932B (en) * 2010-11-12 2012-07-04 上海交通大学 Inchworm motion linear electric motor based on electromagnetic clamping mechanism
CN102291041A (en) * 2011-08-25 2011-12-21 苏州海兹思纳米科技有限公司 Nano motor based on inchworm motion
CN102291041B (en) * 2011-08-25 2013-09-04 苏州海兹思纳米科技有限公司 Nano motor based on inchworm motion

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20110629

Termination date: 20161112