CN103947091A - Cylindrical linear motor - Google Patents
Cylindrical linear motor Download PDFInfo
- Publication number
- CN103947091A CN103947091A CN201180074801.7A CN201180074801A CN103947091A CN 103947091 A CN103947091 A CN 103947091A CN 201180074801 A CN201180074801 A CN 201180074801A CN 103947091 A CN103947091 A CN 103947091A
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- China
- Prior art keywords
- linear motor
- tubular
- magnetic field
- buffer unit
- tubular linear
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2207/00—Specific aspects not provided for in the other groups of this subclass relating to arrangements for handling mechanical energy
- H02K2207/03—Tubular motors, i.e. rotary motors mounted inside a tube, e.g. for blinds
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
This cylindrical linear motor is equipped with: an armature unit (10) which has a cylindrical frame (11), a cylindrical yoke (12) which is made of a magnetic body and fitted into the frame (11), multiple ring-shaped coils (13u, 13v, 13w) which are arranged in the axial direction inside the yoke (12), and bearings which are fixed to either end of the frame (11); a magnetic field unit (20) which is inserted into the armature unit (10), and is formed into a stepped shaft shape which comprises a large-diameter intermediate section where multiple permanent magnets (22) are arranged in the axial direction and small-diameter intermediate sections (24b) which extend from the large-diameter intermediate section in both directions in the axial direction and are inserted into the bearings; and a cylindrical or ring-shaped cushioning member (26) through which the small-diameter intermediate section (24b) is inserted, and which is positioned coaxially with the small-diameter intermediate section (24b) and fixed to the step part of the magnetic field unit (20) or to one end of the frame (11).
Description
Technical field
The present invention relates to tubular linear motor.
Background technology
Tubular linear motor possesses: as the armature portion of stator, it is in the yoke of the tubular of magnetic system, and alignment arrangements has the annulus of many group U phases, V phase and W phase in the axial direction; As the magnetic field portion of mover, its on the axle being inserted in described armature portion, multiple permanent magnets are made with the tabular separating part across magnetic system the N utmost point each other, S mode extremely respect to one another arranges in the axial direction; And the bearing portion such as linear bushings or ball bushing, it is arranged on the both ends of described armature portion, and described axle can freely be moved linearly and be supported in the axial direction.
For above-mentioned tubular linear motor, when in accelerated motion, power supply is cut off, control lost efficacy and time out of control or control command occur when wrong, having magnetic field portion and bearing portion collision, the danger of armature portion or the damage of magnetic field portion.In addition, by the longitudinally configuration and use in the situation that of tubular linear motor, if cut off the electricity supply, magnetic field portion is because deadweight is fallen and collided with bearing portion.If repeat this collision, there is friction destruction, fatigue rupture, cause the breakage of tubular linear motor.
In the past, in the injection moulding machine moving, disclose following injection moulding machine (for example, with reference to patent documentation 1) in the injection moulding that utilizes linear motor to carry out molten resin, it possesses: mould; Cylindrical body, it has the hollow bulb being communicated with the space of this mould, and possesses heating unit, and the resin raw material that this heating unit is accommodated this hollow bulb heats and makes this resin raw material melting; Screw rod, it is inserted in described hollow bulb, and is driven by advance and retreat in the axial direction; The movable part of linear motor, it has the output shaft linking with the rearward end of this screw rod, and in the mode that penetrates molten resin from described hollow bulb towards the space of mould, described output shaft is moved vertically; Installation portion, it has the linear guide portion for the movable part of this linear motor is supported and guided; And buffer unit, it is formed by spring or urethane pad, the front and back installation portion that described in while being arranged on extreme limit of travel, the movable part of linear motor will collide 2 positions separately, and the impulsive force that the collision of the movable part by described linear motor is produced absorbs and this impulsive force is reduced.
In addition, disclose following linear motor (for example, with reference to patent documentation 2), it is made up of fixed part and movable part, and fixed part is made up of following part: housing, and it is also used as yoke; Multiple salient pole type iron cores, they are arranged vertically and install at the internal face up and down of housing; And winding, it is wound on each this iron core, and movable part is made up of following part: yoke; Multiple permanent magnets, they are arranged on the both sides of described yoke; And output shaft, it transmits moving axially to outside of movable part, output shaft is applied in the through hole arranging on housing and stretches out to outside, on 2 positions of the axial end of housing, dispose 2 buffer units, this buffer unit is made up of the elastomer as rubber, kinetic energy when absorption movable part knocks.
Patent documentation 1: TOHKEMY 2002-355868 communique
Patent documentation 2: Japanese kokai publication hei 07-232642 communique (the 3rd, 4 pages, Fig. 1)
Summary of the invention
But according to patent documentation 1,2 disclosed prior aries, 2 buffer units are configured in 2 positions of the up and down or left and right of output shaft.Therefore, there is the problem that number of components is many.In addition, there are the following problems, that is, if movable part any collision first and in 2 buffer units, bending force acts on movable part and output shaft, and the bearing that output shaft is supported is subject to inclined to one side load.In addition, owing to buffer unit being configured in to motor outside, therefore, there is the aging violent of buffer unit, in addition, the problem of disfeaturing property.
The present invention is in view of above-mentioned and propose, and its object is to obtain a kind of tubular linear motor, and it has that number of components is few, cost is low and reliability is high, aging tails off and buffer unit that aesthetic appearance is good.
In order to address the above problem, reach object, the invention is characterized in to possess the buffer unit of armature portion, magnetic field portion and tubular or ring-type, described armature portion has: the framework of tubular; The tubular yoke of magnetic system, it is embedded in described framework; The coil of multiple ring-types, they arrange in the axial direction in described yoke; And bearing, it is fixed on the both ends of described framework, and described magnetic field portion is formed as Step Shaft shape, is inserted in described armature portion, and this magnetic field portion has: large footpath pars intermedia, it is configured to and is arranged with in the axial direction multiple permanent magnets; And path axial region, it extends from described large footpath pars intermedia to axial both sides and is inserted into described bearing, in described buffer unit, insert described path axial region, and described buffer unit and this path axial region are configured in described framework coaxially, be fixed on the stage portion of described magnetic field portion or the end of described framework.
The effect of invention
The tubular linear motor the present invention relates to, possess tubular or ring-type buffer unit, in this buffer unit, insert path axial region, and this buffer unit and path axial region configure coaxially, be fixed on the stage portion of Step Shaft or the end of framework, therefore, can realize the effect that number of components tails off, cost is low and reliability is high of buffer unit.
Brief description of the drawings
Fig. 1 is the sectional arrangement drawing that the execution mode 1 of the tubular linear motor the present invention relates to is shown.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Fig. 3 is the sectional arrangement drawing of the state after mover that the tubular linear motor of execution mode 1 is shown moves to left.
Fig. 4 is that sectional arrangement drawing is amplified in the part that the execution mode 2 of the tubular linear motor the present invention relates to is shown.
Fig. 5 is the sectional arrangement drawing that the execution mode 3 of the tubular linear motor the present invention relates to is shown.
Fig. 6 is the B portion enlarged drawing of Fig. 5.
Fig. 7 is that sectional arrangement drawing is amplified in the part that the execution mode 4 of the tubular linear motor the present invention relates to is shown.
Fig. 8 is that sectional arrangement drawing is amplified in the part that the execution mode 5 of the tubular linear motor the present invention relates to is shown.
Fig. 9 is that sectional arrangement drawing is amplified in the part that the execution mode 6 of the tubular linear motor the present invention relates to is shown.
Figure 10 is that sectional arrangement drawing is amplified in the part of the deformation state of the buffer unit when collision of tubular linear motor of execution mode 6 is shown.
Figure 11 is that sectional arrangement drawing is amplified in the part that the execution mode 7 of the tubular linear motor the present invention relates to is shown.
Figure 12 is that sectional arrangement drawing is amplified in the part that the execution mode 8 of the tubular linear motor the present invention relates to is shown.
Embodiment
Below, explain the execution mode of the tubular linear motor the present invention relates to based on accompanying drawing.In addition, the present invention is not limited by this execution mode.
Execution mode 1.
Fig. 1 is the sectional arrangement drawing that the execution mode 1 of the tubular linear motor the present invention relates to is shown, Fig. 2 is the A portion enlarged drawing of Fig. 1, and Fig. 3 is the sectional arrangement drawing of the state after mover that the tubular linear motor of execution mode 1 is shown moves to left.
As shown in FIG. 1 to 3, the tubular linear motor 91 of execution mode 1 has: the armature portion 10 of tubular, and it becomes stator; And magnetic field portion 20, it becomes mover, inserts and is configured in armature portion 10 coaxially with armature portion 10, is formed as the Step Shaft shape that pars intermedia diameter is large.
Armature portion 10 has: the framework 11 of tubular, and it is the non magnetic systems such as aluminium, resin; The yoke 12 of tubular, it is embedded in framework 11, is magnetic metal system; U phase coil 13u, the V phase coil 13v of multiple ring-types, W phase coil 13w, they arrange in the axial direction in yoke 12; Ring-type insulation board 14, it makes to insulate between U, V, W phase coil 13u, 13v, 13w; The bobbin 15 (ring-type insulation board 14 and bobbin 15 also can utilize resin integrated and form) of tubular, U, V, W phase coil 13u, 13v, 13w are wound on this bobbin 15; Bearing pedestal 16, it is fixed on the both ends of framework 11; And the bearing 17 such as linear bushings, ball bushing, it remains in bearing pedestal 16.
Magnetic field portion 20 possesses: the pipe 21 of the nonmagnetic substance systems such as stainless steel (SUS304), aluminium, and it passes magnetic flux; The permanent magnet 22 of multiple thick plate-like, it arranges in the axial direction in pipe 21; And separating part 23, it is magnetic metal system, is inserted in 22 of adjacent permanent magnets.Permanent magnet 22 with make across separating part 23 the N utmost point each other, S mode extremely respect to one another configures.
Be embedded with the large-diameter portion 24a of Step Shaft 24 at the both ends of pipe 21, the path axial region 24b of Step Shaft 24 extends to axial both sides from pipe (large footpath pars intermedia) 21.About the magnetic field portion 20 as mover, at the chimeric large-diameter portion 24a that has Step Shaft 24 in both ends of pipe 21, thereby as a whole, be formed as the Step Shaft shape that central portion is thicker.The path axial region 24b of Step Shaft 24 is supported on the bearing 17 at both ends of armature portion 10 in the mode coming and going freely in the axial direction.
The path axial region 24b of the Step Shaft 24 of opposite side (left side of Fig. 1), at the root (stage portion of magnetic field portion 20) of large-diameter portion 24a side, is embedded with the spring base 25 of the ring-type of nonmagnetic material (aluminium, resin etc.) system outward.Peripheral part at spring base 25 is provided with helicla flute, helical spring 26 as tubular or ring-type buffer unit is installed in helicla flute, in this helical spring 26, be inserted with the path axial region 24b of Step Shaft 24, and this helical spring 26 configures coaxially with path axial region 24b.In addition, though not shown, but also can be further at the upper mounting spring seat 25 of path axial region 24b and the helical spring 26 of the Step Shaft 24 of opposite side (right side of Fig. 1).
Tubular linear motor 91 utilizes the Magnetic Sensor (Hall element) being arranged in armature portion (stator) 10, the position of the magnetic pole to magnetic field portion (mover) 20 is detected, or utilize linear encoder to detect the shift position of magnetic field portion 20, and based on this detection position information, switch the energising to U, V, W phase coil 13u, 13v, 13w, in the axial direction magnetic field portion 20 is carried out to linear drives along armature portion 10.
When in the accelerated motion of tubular linear motor 91, power supply is cut off, control lost efficacy and time out of control or control command occur when wrong, if magnetic field portion 20 is out of control, as shown in Figure 3, be installed on its right end face collision of the left side leading section of the helical spring 26 in magnetic field portion 20 and the bearing pedestal 16 of armature portion 10, helical spring 26 is compressed and absorb the kinetic energy of magnetic field portion 20, and impact relaxes.Wire diameter, the number of turn of helical spring 26 are determined according to the kinetic energy of magnetic field portion 20.
About the tubular linear motor 91 of execution mode 1, due in the stage portion at Step Shaft 24 1 helical spring 26 to be installed with the coaxial mode of path axial region 24b, therefore, number of components tails off, and owing to producing axisymmetric bounce in helical spring 26, therefore can be to path axial region 24b effect bending force.
Execution mode 2.
Fig. 4 is that sectional arrangement drawing is amplified in the part that the execution mode 2 of the tubular linear motor the present invention relates to is shown.As shown in Figure 4, the tubular linear motor 92 of execution mode 2 is configured to, and the path axial region 24b of Step Shaft 24, in large-diameter portion 24a lateral root portion (stage portion), is embedded with the soft rubber O shape ring processed 26a as ring-type buffer unit outward.
Because utilizing the pretension amount of self, O shape ring 26a is fixed in the large-diameter portion 24a lateral root portion (stage portion) of path axial region 24b of Step Shaft 24, therefore without bolt base part.Replace helical spring 26 and utilize O shape ring 26a, also can realize the effect identical with helical spring 26, and on this basis, O shape ring 26a is as buffer unit, cost is low.
Execution mode 3.
Fig. 5 is the sectional arrangement drawing that the execution mode 3 of the tubular linear motor the present invention relates to is shown, Fig. 6 is the B portion enlarged drawing of Fig. 5.As shown in Figures 5 and 6, the tubular linear motor 93 of execution mode 3 is configured to, and in the diameter holes 11a of framework 11 ends, is embedded with the spring base 25a of tubular.Be provided with inward flange 25aa in the end of spring base 25a, the end that is accommodated in the helical spring 26 as buffer unit in spring base 25a engages with inward flange 25aa.The path axial region 24b of Step Shaft 24 protrudes to outside through helical spring 26.
If magnetic field portion 20 is out of control, the side of the large-diameter portion 24a of Step Shaft 24 and its right end face of helical spring 26 collision, helical spring 26 is compressed and absorb the kinetic energy of magnetic field portion 20, and impact relaxes.As mentioned above, even if helical spring 26 is arranged on to the end of armature portion 10, also can realize the effect identical with being arranged on magnetic field portion 20 sides.As long as helical spring 26 is arranged on to armature portion (stator) 10 sides, the weight of magnetic field portion (mover) 20 just can not increase, and brings impact therefore can to the drive characteristic of magnetic field portion 20.
Execution mode 4.
Fig. 7 is that sectional arrangement drawing is amplified in the part that the execution mode 4 of the tubular linear motor the present invention relates to is shown.As shown in Figure 7, the tubular linear motor 94 of execution mode 4 is configured to, and in the diameter holes 11a of framework 11 ends, is embedded with the O shape ring seat 25b of tubular.End at O shape ring seat 25b is formed with the 25ba of large diameter portion, engages with the 25ba of large diameter portion as the O shape ring 26b of buffer unit.The path axial region 24b of Step Shaft 24 does not encircle 26b through O shape contiguously with O shape ring 26b, and protrudes to outside.
If magnetic field portion 20 is out of control, its right end face collision of the side of the large-diameter portion 24a of Step Shaft 24 and O shape ring 26b, O shape ring 26b is compressed and absorb the kinetic energy of magnetic field portion 20, and impact relaxes.As mentioned above, the end that O shape ring 26b is arranged on to armature 10, also can realize the effect identical with being arranged on magnetic field portion 20 sides.
Execution mode 5.
Fig. 8 is that sectional arrangement drawing is amplified in the part that the execution mode 5 of the tubular linear motor the present invention relates to is shown.As shown in Figure 8, the tubular linear motor 95 of execution mode 5 is configured to, and the path axial region 24b of Step Shaft 24, in large-diameter portion 24a lateral root portion (stage portion), is embedded with the tubular elastomer 26c as tubular buffer unit outward.Tubular elastomer 26c is fixed on the path axial region 24b of Step Shaft 24 by the pretension amount of self.Replace the O shape ring 26a of execution mode 2 and utilize tubular elastomer 26c, also can realize the effect identical with O shape ring 26a.
Execution mode 6.
Fig. 9 is that sectional arrangement drawing is amplified in the part that the execution mode 6 of the tubular linear motor the present invention relates to is shown, Figure 10 is that sectional arrangement drawing is amplified in the part of the deformation state of the buffer unit when collision of tubular linear motor of execution mode 6 is shown.As shown in FIG. 9 and 10, the tubular linear motor 96 of execution mode 6 is configured to, and in the diameter holes 11a of framework 11 ends, is embedded with the tubular elastomer 26d as buffer unit.The path axial region 24b of Step Shaft 24 does not protrude to outside through tubular elastomer 26d contiguously with tubular elastomer 26d.
If magnetic field portion 20 is out of control, its right end face of the side of the large-diameter portion 24a of Step Shaft 24 and tubular elastomer 26d collision, tubular elastomer 26d is compressed and absorb the kinetic energy of magnetic field portion 20, and impact relaxes.In addition, as shown in figure 10, due to tubular elastomer 26d is compressed and expand to the inside and with the path axial region 24b crimping of Step Shaft 24, therefore, utilize frictional force also can impact to relax.As long as tubular elastomer 26d is arranged on to armature portion (stator) 10 sides, the weight of magnetic field portion (mover) 20 just can not increase, and therefore, brings impact can to the drive characteristic of magnetic field portion 20.
Execution mode 7.
Figure 11 is that sectional arrangement drawing is amplified in the part that the execution mode 7 of the tubular linear motor the present invention relates to is shown.As shown in figure 11, the tubular linear motor 97 of execution mode 7 is configured to, and in the diameter holes 11a of framework 11 ends, is embedded with the permanent magnet 26e as tubular or ring-type buffer unit.Being arranged on the magnetic pole (the S utmost point) of inner side of permanent magnet 26e on the end of framework 11 and the magnetic pole (the S utmost point) of the end side of the permanent magnet 22 of magnetic field portion 20, is identical magnetic pole, mutually repels.The path axial region 24b of Step Shaft 24 does not protrude to outside through permanent magnet 26e contiguously with permanent magnet 26e.
If magnetic field portion 20 is out of control, the magnetic pole of the end side of the permanent magnet 22 of magnetic field portion 20 (the S utmost point) is close to the magnetic pole (the S utmost point) of inner side that is arranged on the permanent magnet 26e on the end of framework 11, be subject to repulsive force but can not contact, can relax the impact in when collision.Utilize powerful permanent magnet 26e, just can make magnetic field portion 20 stop, but can not contact.Owing to permanent magnet 26e being arranged on to armature portion (stator) 10 sides, therefore, the weight of magnetic field portion (mover) 20 does not increase, and brings impact can to the drive characteristic of magnetic field portion 20.In addition, if as the permanent magnet 22 of magnetic field portion 20, adopt the permanent magnet of tubular, can with the permanent magnet 26e generalization of end that is arranged on framework 11.
Execution mode 8.
Figure 12 is that sectional arrangement drawing is amplified in the part that the execution mode 8 of the tubular linear motor the present invention relates to is shown.As shown in figure 12, the tubular linear motor 98 of execution mode 8 is configured to, and in the yoke 12 of end that extends to framework 11, is embedded with coil (electromagnet) 26f as the ring-type of buffer unit.The path axial region 24b of Step Shaft 24 does not protrude to outside through coil 26f contiguously with coil 26f.
If magnetic field portion 20 is out of control, the magnetic pole of the end side of the permanent magnet 22 of magnetic field portion 20 (the N utmost point) is close to coil (electromagnet) 26f of end that is arranged on framework 11, due to the magnetic flux of coil (electromagnet) 26f generation, be subject to resilience force, but can not contact, can relax the impact in when collision.As long as adopt powerful coil (electromagnet) 26f, just can make magnetic field portion 20 stop, but can not contact.Due to coil (electromagnet) 26f is arranged on to armature portion (stator) 10 sides, therefore, the weight of magnetic field portion (mover) 20 does not increase, and brings impact can to the drive characteristic of magnetic field portion 20.Coil 26f (electromagnet) can with the U of armature portion 10, V, W phase coil 13u, 13v, 13w generalization.In addition, coil (electromagnet) 26f also can be short-circuited coil.The in the situation that of short-circuited coil, due to the magnetic flux interlinkage of magnetic field portion 20, short circuit current flow can be moved as power brake (dynamic brake).
In addition, in execution mode 1～8, armature portion 10 is made as to stator, magnetic field portion 20 is made as to mover, but, also armature portion 10 can be made as to mover, magnetic field portion 20 is made as to stator.
The explanation of label
10 armature portion (stator)
11 frameworks
11a diameter holes
12 yokes
13u U phase coil
13v V phase coil
13w W phase coil
14 ring-type insulation boards
15 bobbins
16 bearing pedestals
17 bearings
20 magnetic field portions (mover)
21 pipes
22 permanent magnets
23 separating parts
24 Step Shafts
24a large-diameter portion
24b path axial region
25 spring bases
25a spring base
25aa inward flange
25b O shape ring seat
26 helical springs (buffer unit)
26a, 26b O shape ring (buffer unit)
26c, 26d tubular elastomer (buffer unit)
26e permanent magnet (buffer unit)
26f coil (electromagnet, buffer unit)
91,92,93,94,95,96,97,98 tubular linear motors.
Claims (7)
1. a tubular linear motor, is characterized in that,
Possess the buffer unit of armature portion, magnetic field portion and tubular or ring-type,
Described armature portion has: the framework of tubular; The tubular yoke of magnetic system, it is embedded in described framework; The coil of multiple ring-types, they arrange in the axial direction in described yoke; And bearing, it is fixed on the both ends of described framework,
Described magnetic field portion is formed as Step Shaft shape, is inserted in described armature portion, and this magnetic field portion has: large footpath pars intermedia, and it is configured to and is arranged with in the axial direction multiple permanent magnets; And path axial region, it extends from described large footpath pars intermedia to axial both sides and is inserted into described bearing,
In described buffer unit, insert described path axial region, and described buffer unit and this path axial region be configured in described framework coaxially, be fixed on the stage portion of described magnetic field portion or the end of described framework.
2. tubular linear motor according to claim 1, is characterized in that,
Described buffer unit is helical spring.
3. tubular linear motor according to claim 1, is characterized in that,
Described buffer unit is O shape ring.
4. tubular linear motor according to claim 1, is characterized in that,
Described buffer unit is tubular elastomer.
5. tubular linear motor according to claim 1, is characterized in that,
Described buffer unit is permanent magnet.
6. tubular linear motor according to claim 1, is characterized in that,
Described buffer unit is electromagnet.
7. according to the tubular linear motor shown in claim 6, it is characterized in that,
Described electromagnet is short-circuited coil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/076059 WO2013069148A1 (en) | 2011-11-11 | 2011-11-11 | Cylindrical linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103947091A true CN103947091A (en) | 2014-07-23 |
Family
ID=48288770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180074801.7A Pending CN103947091A (en) | 2011-11-11 | 2011-11-11 | Cylindrical linear motor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5680216B2 (en) |
| KR (1) | KR101635691B1 (en) |
| CN (1) | CN103947091A (en) |
| TW (1) | TWI491147B (en) |
| WO (1) | WO2013069148A1 (en) |
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Also Published As
| Publication number | Publication date |
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| JPWO2013069148A1 (en) | 2015-04-02 |
| WO2013069148A1 (en) | 2013-05-16 |
| KR101635691B1 (en) | 2016-07-01 |
| JP5680216B2 (en) | 2015-03-04 |
| TWI491147B (en) | 2015-07-01 |
| KR20140084318A (en) | 2014-07-04 |
| TW201320559A (en) | 2013-05-16 |
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