CN107076179B - Piston and adjustment equipment equipped with the piston - Google Patents
Piston and adjustment equipment equipped with the piston Download PDFInfo
- Publication number
- CN107076179B CN107076179B CN201480082353.9A CN201480082353A CN107076179B CN 107076179 B CN107076179 B CN 107076179B CN 201480082353 A CN201480082353 A CN 201480082353A CN 107076179 B CN107076179 B CN 107076179B
- Authority
- CN
- China
- Prior art keywords
- piston
- band
- holding tank
- recessed portion
- lug boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 230000005389 magnetism Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
Abstract
The invention proposes a kind of pistons (4) of adjustment equipment for that can be run with fluid, the piston possesses the piston body (16) of integral type, the coaxial holding tank (25) in a ring of the longitudinal axis (5) of opposing pistons (4) is configured in piston body, there are two lateral slot flanks (33a, 33b) facing with each other for holding tank tool.There are permanent magnetic device (24) in holding tank (25), permanent magnetic device is made of the magnet band (35) for bending to the permanent magnetism of the elasticity of ring structure, and there are two band end sections (35a, 35b) facing with each other for magnet band tool.Magnet band (35) has the width less than holding tank (25), wherein each of two band end section (35a, 35b) is by clamping in holding tank (25).At least one clamping lug boss (46a, 47a for being protruded from one in slot flank (33a, 33b)；46b, 47b) it is important for clamping.
Description
Technical field
The present invention relates to a kind of pistons of adjustment equipment for that can be run with fluid, in particular for the straight of fluid operation
The piston of line drive, the piston have the piston body of integral type, and piston body has relatively living in the region of its outer radial periphery
The coaxial tool in a ring of the longitudinal axis of plug holds in holding tank there are two the holding tank of lateral slot flank facing with each other
Receive the permanent magnetic device that can be used for position detection.Moreover, it relates to which a kind of adjustment equipment that can be run with fluid, outstanding
It refers to the linear actuator of fluid operation, and it is equipped with shell, is disposed in a manner of it can move linearly in the housing
Piston.
Background technique
The adjustment equipment of piston equipped with the above-mentioned type is as well known to 20 2,005 005 508U1 of DE and such as structure
It makes as linear actuator or damper.During the operation of adjustment equipment, piston is moved relative to the shell of adjustment equipment,
In, the permanent magnetic device being integrated in piston can be used for by can be realized with external position detection part collective effect to piston
Position detection.In order to be manufactured inexpensively piston, it includes the piston body of the integral type of the holding tank with periphery, is being accommodated
Merging has permanent magnetic device in slot.Permanent magnetic device is made of the magnet sections of multiple arcs, these magnet sections are assembled in piston
When be placed in holding tank from radially outer.However, the manufacture and assembly to magnet sections are relatively high costs.
The piston described in above-mentioned 20 2,005 005 508 U1 of DE is additionally equipped with ring structure
Band is guided, guidance band is presented in the holding recessed portion in a ring constructed on the periphery of piston body.Guidance band is configured to
In the guided rings of the hollow posts bodily form, guided rings are interrupted in the somewhere on its periphery, to make it based on its elasticity and in assembly
Can temporarily it be unfolded.The radial exterior face of guidance band limits guide surface, and guide surface, which can be sticked on slippingly, accommodates piston
On the inner peripheral surface of shell, so that piston be enable to implement the linear motion accurately guided relative to shell.
A kind of piston for working cylinder as known in 19715858 A1 of DE, for position detection equipped with being in ring
The permanent magnet of shape.In order to realize the assembly to the toroidal magnet, it is provided with the structure of the multi-piece type of piston body.Piston body by
Two piston elements connected each other in the case where forming holding tank are constituted, these piston elements quilt in the region of holding tank
It applies coated with elastomeric material, to clamp permanent magnet and to fix in an economical manner.
0 307 569 A2 of EP describes a kind of piston-cylinder assembly, and piston possesses the piston body of integral type, in piston
The outer of body places the guidance band for being placed with and being interrupted in the somewhere on the periphery of guidance band.Guidance band has the characteristic of spring,
And construction is snapped into spring-like in the annular groove on the periphery of piston body.In order to realize the position inspection to piston
It surveys, piston body possesses recessed portion on the somewhere of its periphery, and permanent magnets are presented in the recessed portion, which is guided band
It is covered.
Summary of the invention
Task of the invention lies in a kind of measure is provided, can be realized, which is equipped with piston inexpensively, can be used for position inspection
The permanent magnetic device of survey.
In order to solve the task, it is provided that in the piston of the above-mentioned type, permanent magnetic device is by bending to ring structure
The magnet band of the permanent magnetism of elasticity is constituted, and there are two band end regions facing with each other in the circumferential direction of holding tank for magnet band tool
Section, and the width of magnet band is less than the spacing between two slot flanks of holding tank, wherein and two with every in end section
Wherein the one of a two clamp areas adjacent to each other in the circumferential direction of holding tank that holding tank is all maintained at by clamping
In a, in clamp area, piston body is respectively provided at least one in the case where holding tank locally narrows relative to one of them
Clamping lug boss on side that is that slot flank protrudes and being pressed into magnet band.
In addition, the present invention solves in the following way in the adjustment equipment that can be run with fluid of the above-mentioned type, that is,
It is equipped with the piston constructed under above-mentioned meaning.
Can particularly simple be equipped with to the piston body for the integral type that can be inexpensively made in this way can for example be used for position
Set the permanent magnetic device of detection.The magnet band of characteristic considering energy elastic bending as permanent magnetic device, possessing permanent magnetism, in order to
On the piston body, magnet band is placed around piston body, and is put into holding tank herein for assembly.Here, magnet band it is following this
Sample plot positioning, that is, its two are facing with each other to be located in the clamping zone of piston body with end section, in clamping zone,
There are two clamp areas adjacent to each other in the circumferential direction of holding tank for holding tank tool.Here, two with every in end section
In a one be both mounted in two clamp areas.Each clamp area is characterized in that, in two slot flanks of holding tank extremely
Few one is equipped with clamping lug boss, protrudes beyond attached slot flank.In this manner, holding tank is in each clamping lug boss
Region in the width slot flank facing with each other less than two between clear spacing, which is greater than the width of magnet band.
Therefore, magnet band can be put into the region being located at outside clamping zone with a wet finger by placing or being bent around piston body
Into holding tank, and two are pressed into end section when being directed in the clamp area attached respectively with slight pressure
In holding tank.Be located at the clamping lug boss in clamp area by least one come magnet band is laterally carried out load and by its
It is clamping in holding tank.If magnet is fixed in holding tank in this way, band end section can not turn over each other again from, from
And it is then able in the shell that piston is particularly simple imported into attached adjustment equipment.Do not need herein with hand or by
It assembles device and so fixes holding magnet band long, until piston is directed in the shell of adjustment equipment.It is according to the present invention
Design scheme another advantage is that, important component can inexpensively be manufactured by non-cutting molding mode by expectation.
Furthermore, it is possible to tolerance compensating be provided in the very big margin of tolerance by targeted molding mode, which ensure that magnet
Reliable fixed holding of the band in holding tank.Because the assembly to magnet band be it is very simple, can be when needed
Necessary installation step is automated, this can further decrease the manufacturing cost of piston again.
The present invention is advantageously improved scheme.
Preferably, piston body is equipped with the multiple pairs of band end sections attached respectively in each clamp area of holding tank
The clamping lug boss loaded.
The mode of being implemented as follows be it is feasible, in this embodiment, in each clamp area, at least a pair of of clamping lug boss
It is directly opposite on the axis direction of piston.In this manner, that is attached is convex in directly opposite clamping with end section
It is clamped between the portion of rising.However, because such measure has the tolerance of relatively large degree in terms of clamping reliability, by
Be considered as it should further be appreciated that piston body all had in each clamp area of holding tank it is multiple in the circumferential direction of holding tank mutually
Between the clamping lug boss arranged with having spacing.That is, there are multiple circumferential directions in holding tank in each clamp area
With having spacing on the direction each other clamping lug boss for the arrangement that misplaces.
The mode of being implemented as follows is considered as being particularly advantageous, in this embodiment, in each clamp area there are
At least two and especially lucky two clampings being disposed adjacently with having spacing each other in the circumferential direction of holding tank it is convex
Different slot flanks is attached to these clamping lug bosses by the portion of rising.That is, when the first clamping lug boss is arranged therein one
When on slot flank, the clamping boss being spaced from the circumferential direction of holding tank is on opposite slot flank.?
This is not it is very advantageous that have the clamping protrusion for clamping lug boss another slot flank corresponding to being associated in these clamping lug bosses
Portion is opposite.Therefore, in the region of each clamping lug boss, that is attached clamps on the one hand its with end section respectively
In between clamping lug boss and an opposite slot flank for another aspect.Clamp alternating of the lug boss on two slot flanks
Arrangement caused by as a result, with end section wind through clamp area to a certain extent, or have slightly wavy
Be longitudinally oriented.This design scheme of clamp area is extremely insensitive for tolerance, and for making each band edge
Portion's section obtains reliable clamping in the case where the big margin of tolerance, this can decline manufacturing cost especially
It is low.
It has been found advantageously, holding along what the longitudinal direction of piston measured at two in respective clamp area
The clear spacing for the projection received in the circumferential direction of slot between spaced lug boss is less than the width of magnet band.Because of clamping
Lug boss is spaced from each other, so still being able to relatively simply penetrate or be pressed into holding tank from radially outer with end section
In.
Preferably, the clear spacing between each clamping lug boss and the opposite slot flank of holding tank is equal to or more than magnetic
The width of body band.
Furthermore the clamping lug boss advantageously, in each clamp area, being arranged on different slot flanks is had been found
Between the spacing measured along the circumferential direction of holding tank it is big at least as the width of magnet band, however be up to magnet band
Twice of width.Particularly reliable clamping effect has been obtained in this way.
Clamping lug boss can be arbitrarily devised, and for example can be in peg shape ground structure.It is considered as appropriately, folder
It is configured with the moulding of strip with holding lug boss respectively and be in ribbed, and respectively from the region of trench bottom towards the radial direction of holding tank
Channel opening direction extend.
Also advantageously, clamping lug boss faces on the end regions that radial slot is open at it towards the slot flank attached
Inclination.In this manner, it is possible to make easily to be pressed into holding tank to clamping band end section.
For magnet band, the cross section in rectangle that can be inexpensively made is suitable.Magnet band preferably refers to curved
Song at desired annular band bodyTwo band end section either loosely mutually recline otherwise with
The mode with small spacing is arranged each other.
Preferably, magnet band is made of banded band body, is made of with body the plastic material of energy flexible deformation, band body is set
There are permanent-magnet pieces.Permanent-magnet pieces preferably refer to ferromagnetic particle, are integrated into band body and are magnetized as needed.
The piston body of integral type is preferably made of the material of rigidity.This then correspondingly applies to show as the one of piston body
The clamping lug boss of the component part of body formula.For example, piston body is made of the plastic material of metal, ceramics, glass or hard.
Advantageously, piston body does not instead of only have the clamping zone for being uniquely equipped with two adjacent clamp areas,
Clamping zone there are two gathering around as follows：It is associated with piston body each other in diametrically opposite neighboring area.With the party
There are bigger changeabilities when magnet band to be placed in holding tank for formula.
Advantageously, other than magnet band, piston be also equipped with suitable for the shell of adjustment equipment to piston into
The guidance band of row straight line guidance.Guidance band coaxially in piston body is arranged as magnet band.
Guidance band is suitably located in construction in the intracorporal holding recessed portion in a ring of piston, and concentrically surrounding is in ring
The holding tank of shape, and possess the axial width bigger than holding tank.In this manner, holding tank is opened with its radial external slot
Mouth is passed into the recessed portion bottom for keeping recessed portion.It is assemblied in and keeps in recessed portion, ground structure in a ring guidance band
Magnet band is surrounded in radially outer, and suitably covers magnet band.
When in the coaxial holding recessed portion in a ring of the longitudinal axis that guidance band is presented to opposing pistons and herein
When the shape in the radial direction of the longitudinal axis about piston is securely held in locking manner in holding recessed portion, guidance band energy
It is particularly simply assembled on the piston body.Although guidance band has ring structure in the assembled state, on the whole
It is that one kind is limited, gathers around there are two the reciprocal band body with end section, is kept in recessed portion to be assemblied in
And it can simply be placed around piston body.It observes in cross-section, keeps two recessed portion sides facing with each other of recessed portion
The wing is respectively provided with the type exterior feature portion of side female, wherein there is radial spacing in type exterior feature portion respectively with the recessed portion bottom away from holding recessed portion
Mode have towards opposite recessed portion flank direction protrude holding lug boss in a ring.Two holding lug boss energy
The side edge that faces of enough shapes in locking manner with the guidance band being pressed into holding recessed portion is rabbeted, and thus makes to guide band
In the fixed holding in locking manner of shape in the radial direction of piston.
The mode of being implemented as follows be it is particularly suitable, in this embodiment, guidance band possess can flexible deformation characteristic, from
And keep lug boss that can be pressed into the case where guidance is with local deformation and in the case where constructing the sealed interlocking of shape
Into the side edge of guidance band attached respectively.In the state of unassembled, guidance band suitably has the cross in rectangle herein
Section.
There is also have following feasible program as an alternative, that is, guides the side edge of band to be implemented with joint construction, so that guidance band
It can lock or can snap onto and keep in recessed portion.
Detailed description of the invention
The present invention is elaborated below with reference to institute's attached drawing.Wherein：
Fig. 1 shows the sectional side elevation of the preferred embodiment across adjustment equipment according to the present invention, adjustment equipment dress
Have the equally advantageous embodiment of piston according to the present invention；
Fig. 2 illustrates the segment II that chain-dotted line peripheral frame is used in Fig. 1 of piston to amplify, wherein section corresponding to Fig. 4 and
Discribed hatching line II-II in 5；
Fig. 3 shows the cross section that piston is passed through according to the hatching line III-III of Fig. 1, wherein is not drawn into remaining of adjustment equipment
Component part guidance band and magnet band only dotted line and are wherein shown；
Fig. 4 shows the side view for the piston that the arrow IV according to fig. 2 is radially seen, wherein additionally enlargedly
The segment with chain-dotted line peripheral frame is drawn, and wherein, guidance band is not shown for clarity；And
Fig. 5 is with diagramatic way corresponding with Fig. 4 to check that direction shows the other radial view of piston according to arrow IV
Figure, wherein here it is shown that the guidance band under assembled state.
Specific embodiment
Fig. 1 shows capable of running with fluid for the linear actuator 1a operated in embodiments as fluid using vertical section
Adjustment equipment 1.However, use scope of the invention is not limited to linear actuator, but also extend to every other class
The adjustment equipment that can be used in association with fluid application of type, therefore for example also use in damper.
Adjustment equipment 1 possesses shell 2, and shell defines shell that is linearly extended and preferably having rounded cross section
Chamber 3, energy straight line is disposed with piston 4 with moving back and forth in housing chamber.The longitudinal axis 5 of piston 4 is stretched along the direction of motion of piston 4
It opens up and is preferably overlapped with the longitudinal axis 6 of housing chamber 3.
Housing chamber 3 is respectively closed by end wall 7a, 7b of shell 2 on two end sides.Extend between two end walls 7a, 7b
Single type or multi-piece type tube body 8 undertake housing chamber 3 periphery, the limit of radially outer, the inner face of tube body, which limits, is in
The piston running face 9 of cylinder shape.End wall 7a, 7b are suitably configured to the case lid separated relative to tube body 8 and pass through fastening
Part is connect with tube body 8.However there is also following feasible programs, that is, at least one of end wall 7a, 7b with tube body 8 integrally
Construction.
The Internal periphery of the radial outer profile and housing chamber 3 of piston 4 matches, so that piston is in its linear motion along work
Running face 9 is filled in slide.Preferably, piston 4 draws equipped with the guide surface 10 for being preferably in cylinder shape on the periphery of its radial directed
Guide face is located on piston running face 9 in a manner of it can slide, so that piston 4 be made to pass through guide surface 10 in its linear motion and live
The collective effect between running face 9 is filled in obtain the straight line guidance relative to shell 2.
By piston 4, housing chamber 3 is axially divided into two working chambers 12a, 12b, the stream outside the section of Fig. 1
Body channel is led in working chamber respectively, to make it possible controllably to load fluid to two working chambers 12a, 12b.With the party
Formula, piston 4 can be driven to be moved along a straight line relative to the axis direction of the axis 6 along longitudinal direction of shell 2.
Fluid for runing adjustment equipment 1 preferably refers to compressed air.However, using other gaseous media or liquid
The medium of pressure is also feasible.
The linear motion of piston 4 can be intercepted on moving the power interception component 14 coupled with piston 4 outside shell 2.
It is piston rod 15 in embodiment that power, which intercepts component, and piston rod penetrates through at least one in a manner of it can slide in the case where sealing
A end wall 7b, and piston rod is fastened on piston 4 using its section for being located at 3 the inside of housing chamber.Piston 4 and piston rod 5 because
This forms moving cell.
In unshowned embodiment, linear actuator 1a is the linear actuator of piston-rodless, in the linear actuator
In, piston 4 for example magnetically couples with the power interception component movement being displaceably supported on outside shell 2.
Piston 4 possesses preferably disk-shaped piston body 16.Piston body 16 has the longitudinal axis 5 of opposing pistons 4 at right angle
Piston body sagittal plane 16a.Via piston body 16, piston 4 is fastened in embodiment on piston rod 15.Exemplarily, living
Cock body 16 constructs in disk formly, and is run through by the fastener hole at center 17, and piston body is plugged into work using the fastener hole at center
On stopper rod 15.
Piston body 16 is suitably the component of integral type.It is preferably made and of the material of rigidity in embodiment by gold
Belong to, is especially made of aluminium diecasting.As the alternative material for being directed to piston body 16, for example, ceramics, glass or hard
Matter plastics, wherein composite material is also feasible.
Piston body 16 carries the opposite concentric sealing element 18 of longitudinal axis 5 in the region of its periphery, and sealing element is in work
Plug 4 is sticked on piston running face 9 in a manner of it can slide in the state of being encased in adjustment equipment 1.Sealing element prevents
Fluid transfer occurs between two working chambers 12a, 12b.Exemplarily, sealing element 18 is made of two sealing rings 18a, 18b, it
Be fixed on having axial spacing on piston body 16 each other.Preferably, each sealing ring 18a, 18b are maintained at radially outward spacious
In binding groove 19a, the 19b opened, binding groove constructs in its outer radial periphery in piston body 16.Each binding groove 19a, 19b
Coaxially arranged in 5 ground of longitudinal axis.
Guide surface 10 is suitably formed by the outer peripheral surface of the guidance band 22 with ring structure being radially outward directed, guidance
Band is fixed in the region of the outer radial periphery on piston body 16.Piston body 16 possesses relatively longitudinal in the region of its outer radial periphery
The coaxial holding recessed portion 23 in a ring of axis 5, guidance band 22 is radial to be sunk to wherein and band 22 is guided to remain at.
Expediently, piston 4 is equipped with permanent magnetic device 24, permanent magnetic device can be used for the position detection to piston 4.Permanent magnetic device
24 orientation are securely fixed on piston 4, and for linear motion therewith.By the movement rail for being arranged in permanent magnetic device 24
It is beside mark and be especially arranged on herein outside housing chamber 3, further drawing not in the drawings, to permanent magnetic device 24
The position detection part that magnetic field responds can determine the current of the piston 4 of carrying permanent magnetic device 24 in the operation of adjustment equipment 1
Axial position.Position detection part for example includes one or more sensors, for example, Hall sensor and/or they
Belong to stroke measurment system.
Permanent magnetic device 24 suitably has structure in a ring, and is coaxially arranged in piston body 16 in 5 ground of longitudinal axis
On.
In combination at least one guidance band 22, it is possible that guidance band in the corresponding design scheme of piston body 16
22 and permanent magnetic device 24 be abreast mounted on piston body 16 in the axial direction.However in order to be conducive to the narrow structure class of piston 4
Type and advantageously, permanent magnetic device 24 to be arranged with the identical axial height of guidance band 22, more specifically as follows
To arrange, that is, so that permanent magnetic device 24 is guided band 22 and concentrically surround.The guidance band is suitable for the present embodiment.
In embodiment, permanent magnetic device 24 is contained in the construction of piston body 16 in the region of the outer radial periphery of piston body 16
Holding tank 25 in a ring in.The holding tank 25 have be radially outward directed, itself around piston body 16 extend in seam
The channel opening 26 of gap shape, the channel opening are more narrower than holding recessed portion 23 along the axial direction of piston 4.Holding tank 25 is outside in diameter
Portion is kept the encirclement of recessed portion 23, wherein holding tank is passed into the recessed portion bottom 27 for keeping recessed portion 23 with its channel opening 26
In.Recessed portion bottom 27 refers to keeping the bottom surface radially of recessed portion 23.
Preferably, the channel opening 26 of the radial directed of holding tank 25 is passed into axial intermediate region keeps recessed portion 23
In.In this manner, the axial sides in channel opening 26 are connected respectively recessed portion bottom section 27a, 27b in a ring, recess
Portion's bottom section is preferably the profile of cylinder shape.
It is arranged in and the guidance band 22 in recessed portion 23 is kept to cover channel opening 26, and therefore also covering is arranged in holding tank
Permanent magnetic device 24 in 25.
There are two mutual on the axis direction of the longitudinal axis 5 of piston 4 for holding recessed portion 23 tool for guiding band 22
Lateral recessed portion flank 28a, 28b spaced apart and facing with each other.Each recessed portion flank 28 is connected to recessed portion bottom
In portion 27, wherein exemplarily, each recessed portion flank 28a, 28b are transited into two recessed portion bottom sections 27a, 27b
One of them.Recessed portion 23 is kept to be unlimited in the radial side opposite with recessed portion bottom 27, that is, in radially outer.
Holding tank 25 for permanent magnetic device 24 has groove bottom being referred to as trench bottom 32, being radially outward directed, should
Groove bottom is to the channel opening 26 for being placed at radially outer.
The bore of trench bottom 32 is less than the bore of recessed portion bottom 27.
There are two sides spaced and facing with each other simultaneously on the axis direction of longitudinal axis 5 for the tool of holding tank 25
To slot flank 33a, 33b, referred to below for preferably distinguishing also referred to as the first slot flank 33a and the second slot flank
33b.The two slot flanks 33a, 33b are transited into the recessed portion bottom 27 for keeping recessed portion 23 from inner radial in embodiment.
The clear spacing between clear spacing less than two recessed portion flanks 28a, 28b between two slot flanks 33a, 33b.Holding tank 25 is excellent
Selecting has at least substantially cross section in rectangle.
Guidance band 22 has ring structure in the state of being fixed on and keeping in recessed portion 23.However, ring structure itself
It is not fully closed, but possesses discontinuities 34.Preferably, guidance band 22 refers to the band body with finite length, this
Band body is gathered around there are two reciprocal band end section 22a, 22b.Preferably, guidance band is made into linear band body,
Only then when being assemblied on piston body 16 just bending circularize.This point benefits from guidance band 22 and possesses energy flexible deformation
Characteristic.
In the assembled state, guidance band 22, which winds and is placed to co-axially around piston body 16, keeps recessed portion 23
In, wherein guide two of band with end section 22a, 22b keep recessed portion 23 circumferential direction 23a on it is facing with each other.It protects
The circumferential direction 23a for holding recessed portion 23 is to surround the direction of longitudinal axis 5 and indicated in Fig. 3 by double-head arrow.
Expediently, two between end section 22a, 22b there are it is at least small, limit between discontinuities 34
Away from.
Guide the front faces facing each other in the circumferential direction for keeping recessed portion 23 of band 22 preferably in the whole of guidance band 22
It is tilted on a width.Here, two inclined end faces facing with each other with end section 22a, 22b are prolonged with being preferably parallel to each other
It stretches.
Permanent magnetic device 24 is preferably made of the magnet band 35 for bending to the permanent magnetism of the elasticity of ring structure, and magnet band 35 is suitable
Preferably there is limited length, and gather around there are two reciprocal band end section 35a, 35b.Preferably, magnet band 35 is made
The band body of shape of being in line is bent to ring structure when it is assembled in holding tank 25.Magnet band 35 is therefore at it
It is bent in the case where being suitably radially directed at the same time when being assemblied on piston body 16 in holding tank 25 around piston body 16, this
Kind assembly is suitably corresponding to the assembly to guidance band 22.
The characteristic that magnet band 35 possesses energy flexible deformation is benefited from this assembly.Preferably, magnet band is by being equipped with permanent-magnet pieces
Banded band body constitute, this with body by can the plastic material of flexible deformation constitute, permanent-magnet pieces are responsible for the permanent magnetism of magnet band 35
The characteristic of property.Permanent-magnet pieces for example refer to ferromagnetic particle, are embedded in a manner of being finely distributed when manufacturing magnet band
Magnetized in banded band body and then.
When magnet band 35 has been prepared for being put into holding tank 25, two band end sections 35a, 35b are in holding tank
It is facing with each other on 25 circumferential direction 25a.The circumferential direction 25a of holding tank 25 is to surround the direction of longitudinal axis 5 and in Fig. 3
In indicated by double-head arrow.At two with there are the discontinuities of the ring structure of magnet band 35 between end section 35a, 35b
36, which especially shows as small gap, thus two with end section 35a, 35b holding tank 25 circumferential direction
25a is upper opposite with the spacing of very little.The circumferential direction 25a of holding tank 25 is the direction for surrounding the longitudinal axis 5 of piston 4.
There are two end face 39a, 39b of longitudinal direction side for the tool of magnet band 35, they divide in the state of being assemblied in holding tank 25
It Mian Dui not one in slot flank 33a, 33b.
Although guidance band 22 be put into keep recessed portion 23 in the state of the characteristic based on its spring and have
Dug in two regions with end section 22a, 22b and from keep recessed portion 23 be detached from tendency, but guide band 22
Only pass through piston body 16 based on suitable fixation to keep together, to make it retain its ring structure, in the ring junction
In structure, guidance band is all fixed on over the whole length to be kept in recessed portion 23.
Expediently, being equally applicable to be related to the magnet band 35 of holding tank 25.Piston body 16 in the region of holding tank 25 such as
Under be designed such that, that is, piston body as follows fixation maintains the magnet band 35 being put into holding tank 25, that is, although
Elasticity based on magnet band and expansion tendency occurs, but magnet band is also arranged in holding tank 25 simultaneously in its whole length
And it is not dug in two regions with end section 35a, 35b.
Effect described herein is realized in the following way at 22 aspect of guidance band, that is, is observed, is kept in cross-section
Two recessed portion flanks 28a, 28b of recessed portion 23 are respectively provided with the type exterior feature portion of side female, to make each recessed portion flank
28a, 28b shape are in locking manner and in two side edges 37a, 37b oriented on the axis direction of longitudinal axis 5 of guidance band 22
A respective face pair side edge 37a, 37b interlocking.Shape is locked together in working in the radial direction about longitudinal axis 5,
Recessed portion 23 is kept to guide band 22 to remain fixed at over the whole length by recessed portion flank 28a, 28b of type exterior feature
In.Expediently, being related to the sealed interlocking of the shape that can be unclamped, so as to realize replacement guidance band in case of need.
The type exterior feature portion of the side female of recessed portion flank 28a, 28b especially shows in each recessed portion flank 28a, 28b
For holding lug boss 38a, the 38b leant out towards the direction of opposed respectively recessed portion flank 28b, 28a, lug boss is kept to be concentric with
5 ground of longitudinal axis of piston 4 is arranged, and is extended on the circumferential direction 23a for keeping recessed portion 23 without interruption.Two holdings
Each of lug boss 38a, 38b have with the recessed portion bottom 27 away from holding recessed portion 23 in the radial direction about longitudinal axis 5
On the mode of spacing arrange, to be radially positioned respective holding protrusion in respective recessed portion flank 28a, 28b
Holding recessed portion 43a, 43b that closed in itself in a ring is obtained in region between portion 38a, 38b and recessed portion bottom 27, draw
Conduction band 22 can be embedded into the longitudinal axis for keeping in recessed portion 43a, 43b and recessed portion 43a, 43b being kept to be also concentric with piston 4
5 ground of line arrangement.
Preferably, guidance band 22 has the cross in rectangle under the original state being not yet presented in holding recessed portion 23
Section.Guide the width of band 22 in the initial state than opposite axis 5 along longitudinal direction kept between lug boss 38a, 38b
The clear spacing that measures of axis direction it is larger.It is accomplished that in this way, keeps lug boss 38a, 38b in guidance band 22
It is placed in the state of keeping in recessed portion 23 and is pressed into the side attached respectively in the case where guiding band 22 to be locally deformed with
In edge 37a, 37b.The material of guidance band 22 being pushed out due to indentation, which is embedded into, to be kept in recessed portion 43a, 43b.With this
Mode has obtained sealed, shape in the shape of piston 4 to work in the radial direction between piston body 16 and guidance band 22
Shape is sealed for making to guide band 22 over the whole length in two side edges 37a, 37b through recessed portion flank 28a, 28b
Side female type exterior feature portion come fix keep.
When assembly guides band 22, the effect power radial about longitudinal axis 5 is taken in guidance, so that band be guided to be pressed
Into between two holding lug bosses 38a, 38b and it is clamping wherein.
There are the feasible programs for reinforcing shape locking action in the following way, that is, guidance band 22 is in two side
Possess preshaped interlocking profile on edge 37a, 37b, it is wide with the type complementary with recessed portion flank 28a, 28b of type exterior feature
Portion, so that guiding band 22 over the whole length can lock or can snap onto holding recessed portion 23.
In order to which fixed magnet band 35 has properly used following clamping principle：Wherein, magnet band 35 is not entire long at it
It is clamping by piston body 16 on degree, but only in some regions and herein especially in two band end section 35a, 35b
On it is clamping.Two gripping with end section 35a, 35b are carried out independently of one another.Two band end section 35a,
35b is not secured on each other, but is only secured on piston body 16 respectively.
Piston body 16 its periphery periphery at least one on possess clamping zone 44, piston body 16 is in the clamping zone
On construct as follows, that is, piston body can make two band end sections 35a, 35b clampingly remain fixed at independently of each other
In holding tank 25.Here, piston body 16 is gathered around in clamping zone 44, there are two the phases each other on the circumferential direction 25a of holding tank 25
Adjacent clamp area 45a, 45b, clamp area 45a, 45b are with being configured for force closure respectively fixed to maintain band end section
One in 35a, 35b.
Magnet band 35 suitably has constant width " B " over the whole length.Longitudinal axis of the width B along piston 4
The axis direction of line 5 measures, or measures between two sides 39a, 39b.In addition, magnet band 35 suitably has in rectangle
Cross-sectional shape.
The width B of magnet band 35 is less than the clear spacing A1 between two slot flanks 33a, 33b of holding tank 25.Therefore, magnetic
Body band 35 is in wherein that region to the section for being equipped with slot flank 33a, 33b of holding tank 25 with the gap of very little
Mode is contained in holding tank 25.
And piston body 16 possesses at least one relative to two slot flanks respectively in the region of two clamp areas 45a, 45b
Clamping lug boss 46a, 47a that a direction towards opposite slot flank 33b, 33a in 33a, 33b is protruded；46b, 47b,
Clamping lug boss causes holding tank 25 locally to narrow.Narrowed by part and be accomplished that, magnet band 35 is in two band end region
It is clamping in one or more in the region of section 35a, 35b in holding tank 25 and to dig.It can also be referred to as and tighten
The narrowed areas at position is made marks at 48 by arrow.
There are following feasible programs, that is, unique clamping lug boss is provided only in each clamp area 45a, 45b,
Its spacing away from opposite slot flank is smaller than the width B of magnet band 35, thus mainly due to unique clamping protrusion
Portion is pressed into side 39a, 39b for facing of magnet band 35 and causes to clamp.
There is also have following feasible program, that is, in each clamp area 45a, 45b, in the circumferential direction 25a of holding tank 25
On be disposed with multiple clamping lug bosses with having spacing each other.Herein for example, these multiple clamping lug bosses can be constructed only
It constructs on one slot flank and herein on identical slot flank 33a, 33b.
Furthermore there are following feasible programs, that is, at one or in two clamp areas 45a, 45b, in two slot flanks
Setting is there are two clamping lug boss opposite on the axis direction of the longitudinal axis 5 of piston 4 on 33a, 33b, they towards that
This leans out and limits for sandwiching the tightening position 48 with end section 35a, 35b attached.Here, in each clamping
There are only a pair of or multipair such opposite clamping lug bosses in area 45a, 45b.
The particularly preferred design scheme of two clamp areas 45a, 45b are realized in the present embodiment and are said in the accompanying drawings
It is bright.Therefore, piston body 16 is owned by multiple circumferential directions in holding tank 25 in each of two clamp areas 45a, 45b
Clamping lug boss 46a, the 47a arranged with having spacing on 25a each other；46b, 47b, that is, possess multiple clamping lug bosses,
They are arranged mutually staggered in the circumferential direction of holding tank 25.However, clamping lug boss 46a, 47a；46b, 47b are respective
Clamp area 45a, 45b in be not respectively present on identical slot flank 33a, 33b, and be arranged on different slot flanks
On 33a, 33b.Exemplarily, in each clamp area 45a, 45b, first clamping lug boss 46a, 46b is formed in the first slot side
On wing 33a, and related to this second clamping lug boss 47a, 47b being spaced apart on the circumferential direction 25a of holding tank 25
It is formed on the second slot flank 33b.In corresponding another slot flank 33a, 33b to being placed in respective clamping lug boss 46a, 47a；
Preferably there is no clamping lug boss in the region of 46b, 47b, there, relevant slot flank 33a, 33b are designed without clamping
Lug boss.
In each clamp area 45a, 45b, multiple weeks in holding tank 25 holding tank 25 have been obtained in this way
Spaced tightening position or narrowed areas 48 on direction, they from reciprocal slot flank 33a, 35b by protruding into
To clamping lug boss 46a, 47a in holding tank 25；46b, 47b cause.
Obtained by the arrangement, be each pressed into band end section 35a, 35b in clamp area 45a, 45b with
Circumferential direction 25a wind through respective clamp area 45a, the 45b and thus effectively of slight wave along holding tank 25
It is clamping.In the clamping scheme of the type it is not necessary that, in each clamping lug boss 46a, 47a；46b, 47b and opposite
Measured clear spacing A2 is less than the width B of magnet band 35 between slot flank 33a, the 33b set.Clear spacing A2 is suitably etc.
In magnet band 35 width B or in this respect even can be larger.Clamping effect is caused mainly due to following situation, that is,
Magnet band 35 deforms to meander-like in each clamp area 45a, 45b so that especially also adjacent to clamping lug boss 46a,
47a；It is tensioned in the region of 46b, 47b using slot flank 33a, 33b.
Clamping effect fatefully passes through alternative in clamping section 45a, 45b based on band end section 35a, 35b herein
The clamping lug boss that ground is located on different slot flank 33a, 33b is forced into indentation or wavy or at least curved
Longitudinal moulding, and the elasticity based on magnet band 35 and have and deform back to the tendency of its linear initial model, to make
It is tensioned in holding tank 25 transverse to the circumferential direction 25a of holding tank.
It has been found to be advantageous, in respective clamp area 45a, 45b, in two circumferential directions in holding tank 25
25a upper spaced clamping lug boss 46a, 47a；The projection measured along the longitudinal direction of piston 4 between 46b, 47b
Clear spacing A3 be less than magnet band width B.
In addition, had been found appropriately to generate optimal clamping, in each clamp area 45a, 45b it is following this
Sample ground clamping lug boss 46a, the 47a of choice arrangement on different slot flank 33a, 33b；Between 46b, 47b along holding tank
The spacing A4 that measures of circumferential direction, that is, its width that is big and being up to magnet band at least as the width B of magnet band
Twice of B.
Certified to be, there are two clamp lug boss 46a, 47a in each clamp area 45a, 4b；46b, 47b are just enough
Reliably band end section 35a, 35b that clampingly fixed holding residence is attached.However, also can be set in each clamp area
There is more than two clamping lug boss.
It is fully sufficient, unique clamping zone of described type is provided only with along the periphery of holding tank 25
44.When magnet band is only fixed in its two band end sections 35a, 35b, magnet band 35 has just been securely held on
In holding tank 25.
However advantageously, at least one in the circumferential direction side of piston body 16 for the speed when assembling piston 4
The other clamping zone 44a of discribed structure is provided on the position being spaced apart upwards with clamping zone 44.Work as magnet band
35 with corresponding position when being put into holding tank 25, which can serve as illustrated clamp area
The alternative in domain 44 is come for fixing two band end sections 35a, 35b.In principal it is also possible to along the circumferential distribution of piston body 16
Ground there are multiple such clamping zones, however, the quantity of clamping zone be kept as far as possible it is small, this is because they are based on
Clamping action obtained and in principle make import magnet band 35 become difficult.
Clamp lug boss 46a, 47a；46b, 47b can be designed arbitrarily in principle.Importantly, they are in holding tank 25
Trend in cause part narrow.Following molding mode is proved to be particularly suitable, that is, in the molding mode, each folder
Hold lug boss 46a, 47a；46b, 47b are configured with 3 in ribbed the moulding of strip according to fig. 2, and respectively from holding tank
The region of 25 trench bottom 32, which is risen towards the direction of the radial slot opening 26 of holding tank 25, to be extended.It is advantageous under the relationship first
It is to clamp lug boss 46a, 47a；46b, 47b its in face of radial slot opening 26 end regions on have radially outward and
The rake 49 extended towards slot flank 33a, the 33b attached.Rake 49 forms inclined guide surface, when band end section exists
When being loaded from radially outer the power with pressing when assembly, guide surface makes respective band end section 35a, 35b like clockwork
It is introduced into holding tank 25.
Claims (19)
1. piston, is used for the adjustment equipment that can be run with fluid, the piston has the piston body (16) of integral type, the work
Longitudinal axis (5) of the cock body with the relatively described piston (4) in the region of its outer radial periphery it is coaxial in a ring have two
The holding tank (25) of a lateral slot flank (33a, 33b) facing with each other, position can be used for by accommodating in the holding tank
The permanent magnetic device (24) of detection, which is characterized in that the permanent magnetic device (24) by bend to ring structure elasticity permanent magnetism
Magnet band (35) constitute, there are two band edges facing with each other in the circumferential direction of the holding tank (25) for magnet band tool
Portion's section (35a, 35b), and the width of the magnet band be less than the holding tank (25) two slot flanks (33a, 33b) it
Between spacing, wherein two are maintained at described by clamping with each band end section in end section (35a, 35b)
One in the circumferential direction of the holding tank (25) in clamp area (45a, 45b) adjacent to each other of two of holding tank (25)
In, in the clamp area, the piston body (16) is respectively provided at least one feelings locally to narrow in the holding tank (25)
Relative to side (39a, 39b) that is one of slot flank (33a, 33b) protrusion and being pressed into the magnet band (35) under condition
On clamping lug boss (46a, 47a；46b,47b).
2. piston according to claim 1, which is characterized in that the piston body (16) is in each of described holding tank (25)
Multiple clamping lug boss (46a, 47a are all had in clamp area (45a, 45b)；46b,47b).
3. piston according to claim 1, which is characterized in that the piston body (16) is in each of described holding tank (25)
Multiple folders arranged with having spacing each other in the circumferential direction of the holding tank (25) are all had in clamp area (45a, 45b)
Hold lug boss (46a, 47a；46b,47b).
4. piston according to claim 3, which is characterized in that in each clamp area (45a, 45b), at least two in institute
State clamping lug boss (46a, the 47a being disposed adjacently with having spacing in the circumferential direction of holding tank (25) each other；46b,47b)
It is arranged on different slot flanks (33a, 33b), wherein described clamping lug boss (46a, 47a；46b, 47b) not with
Clamping lug boss on another slot flank (33b, 33a) is opposite.
5. piston according to claim 4, which is characterized in that in respective clamp area (45a, 45b), along the piston
(4) longitudinal direction measure in two spaced clamping lug bosses in the circumferential direction of the holding tank (25)
(46a,47a；46b, 47b) between projection clear spacing (A3) be less than the magnet band (35) width (B).
6. piston according to claim 4 or 5, which is characterized in that each clamping lug boss (46a, 47a；46b, 47b) with
Clear spacing between the opposite slot flank (33a, 33b) of the holding tank (25) is equal to or more than the magnet band (35)
Width (B).
7. piston according to claim 4 or 5, which is characterized in that in each clamp area (45a, 45b), be arranged in not
Clamping lug boss (46a, 47a on same slot flank；46b, 47b) between along the holding tank (25) circumferential direction measure
The spacing (A4) arrived is at least equally big with the width (B) of the magnet band (35), and is up to the width of the magnet band (35)
Spend twice of (B).
8. piston according to any one of claim 1 to 5, which is characterized in that in two clamp areas (45a, 45b)
Lucky two clamping lug bosses (46a, 47a are disposed in each；46b,47b).
9. piston according to any one of claim 1 to 5, which is characterized in that described clamping lug boss (46a, 47a；
46b, 47b) moulding of strip is configured in ribbed respectively, and respectively from the trench bottoms (32) of the holding tank (25)
Play direction extension and/or the clamping lug boss towards the radial slot opening (26) of the holding tank (25) in region
(46a,47a；46b, 47b) its in the end regions of radial slot opening (26) towards the slot flank attached
(33a, 33b) inclination.
10. piston according to any one of claim 1 to 5, which is characterized in that it is in rectangle that the magnet band (35), which has,
Cross section and/or the magnet band (35) have it is banded, by can flexible deformation the band that constitutes of plastic material
Body, the band body are equipped with permanent-magnet pieces.
11. piston according to any one of claim 1 to 5, which is characterized in that the piston body (16) is by rigid material
Material is constituted.
12. piston according to any one of claim 1 to 5, which is characterized in that the piston body (16) at two each other
Be respectively provided on diametrically opposite neighboring area it is for the magnet band (35), gather around there are two clamp area adjacent to each other
The clamping zone (44,44a) of (45a, 45b), wherein the two clamping zones (44,44a) can be alternatively used for two bands of clamping
End section (35a, 35b).
13. piston according to any one of claim 1 to 5, which is characterized in that holding tank (25) in a ring is concentrically
The holding recessed portion (23) in a ring being built into the piston body (16) surrounds, wherein the holding tank is than the guarantor
It is narrow and the holding recessed portion (23) is passed into the external channel opening of the radial direction of the holding tank (26) to hold recessed portion (23)
Recessed portion bottom (27) in, wherein maintained in the holding recessed portion (23) and cover the magnet band in radially outer
(35), the guidance band (22) of ground structure in a ring.
14. piston according to any one of claim 1 to 5, which is characterized in that outside in the diameter of the piston body (16)
The tool in a ring of the longitudinal axis (5) of the relatively described piston (4) coaxially is configured in the region in week, and there are two facing with each other
The holding recessed portion (23) of lateral recessed portion flank (28a, 28b) maintains in the holding recessed portion with ring junction
The guidance band (22) of structure, there are two bands facing with each other in the circumferential direction for keeping recessed portion (23) for the guidance belt
End section (22a, 22b), wherein observe in cross-section, it is described keep recessed portion (23) two recessed portion flanks (28a,
It 28b) is respectively provided with the type exterior feature portion of side female, and respectively to have diameter away from the recessed portion bottom (27) for keeping recessed portion (23)
There is the holding lug boss in a ring leant out towards the direction of opposite recessed portion flank (28b, 28a) to the mode of spacing
(38a, 38b), it is described to keep boss shapes embedding with the side edge (37a, 37b) of the guidance band (22) faced in locking manner
It connects.
15. piston according to claim 14, which is characterized in that the holding lug boss (38a, 38b) is in the guidance
The guidance band (22) is pressed into the case where shape sealed interlocking in the case where band (22) local deformation and constructing
In the side edge (37a, 37b) attached respectively, wherein the guidance band (22) is not yet being assemblied in the holding recessed portion (23)
In original state under suitably have in rectangle cross section.
16. piston according to any one of claim 1 to 5, which is characterized in that described to be set with the adjusting that fluid is run
Standby is the linear actuator of energy fluid operation.
17. piston according to claim 11, which is characterized in that the piston body (16) consists of metal.
18. can with fluid run adjustment equipment, with shell (2), in the shell in a manner of it can move linearly cloth
It is equipped with piston (4), which is characterized in that the piston (4) constructs to any one of 17 according to claim 1.
19. the adjustment equipment according to claim 18 that can be run with fluid, which is characterized in that described to be run with fluid
Adjustment equipment be can fluid operation linear actuator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2014/003034 WO2016074691A1 (en) | 2014-11-12 | 2014-11-12 | Piston and positioning device equipped therewith |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107076179A CN107076179A (en) | 2017-08-18 |
| CN107076179B true CN107076179B (en) | 2018-11-30 |
Family
ID=51897237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480082353.9A Expired - Fee Related CN107076179B (en) | 2014-11-12 | 2014-11-12 | Piston and adjustment equipment equipped with the piston |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3164610B1 (en) |
| KR (1) | KR20170082500A (en) |
| CN (1) | CN107076179B (en) |
| WO (1) | WO2016074691A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017115481B4 (en) * | 2017-07-11 | 2022-09-01 | Schaeffler Technologies AG & Co. KG | Double magnet holder for a piston of a CSC with sensor and slave cylinder with double magnet holder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378726A (en) * | 1979-11-24 | 1983-04-05 | Kurt Stoll | Piston designed for use with a magnetic force pickup |
| US4928577A (en) * | 1987-09-17 | 1990-05-29 | Kurt Stoll | Piston and cylinder unit |
| CN101151468A (en) * | 2005-04-07 | 2008-03-26 | 费斯托合资公司 | Piston and fluidically actuated positioning device comprising the same |
| CN201062601Y (en) * | 2007-07-27 | 2008-05-21 | 毛信强 | Two-stage dashpot plunger type cylinder |
| CN101218436A (en) * | 2005-07-06 | 2008-07-09 | 费斯托合资公司 | Piston for a working cylinder |
| DE102011120596A1 (en) * | 2011-12-08 | 2013-06-13 | Trw Automotive Gmbh | Piston for a double-acting piston-cylinder unit and hydraulic power steering with such a piston |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639868A (en) * | 1971-03-17 | 1972-02-01 | Bimba Mfg Co | Magnetic switch mounting means for a fluid motor unit |
| JP4063402B2 (en) * | 1998-05-27 | 2008-03-19 | 株式会社アミテック | Cylinder position detector |
-
2014
- 2014-11-12 EP EP14796715.2A patent/EP3164610B1/en active Active
- 2014-11-12 CN CN201480082353.9A patent/CN107076179B/en not_active Expired - Fee Related
- 2014-11-12 KR KR1020177007446A patent/KR20170082500A/en not_active Application Discontinuation
- 2014-11-12 WO PCT/EP2014/003034 patent/WO2016074691A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378726A (en) * | 1979-11-24 | 1983-04-05 | Kurt Stoll | Piston designed for use with a magnetic force pickup |
| US4928577A (en) * | 1987-09-17 | 1990-05-29 | Kurt Stoll | Piston and cylinder unit |
| CN101151468A (en) * | 2005-04-07 | 2008-03-26 | 费斯托合资公司 | Piston and fluidically actuated positioning device comprising the same |
| CN101218436A (en) * | 2005-07-06 | 2008-07-09 | 费斯托合资公司 | Piston for a working cylinder |
| CN201062601Y (en) * | 2007-07-27 | 2008-05-21 | 毛信强 | Two-stage dashpot plunger type cylinder |
| DE102011120596A1 (en) * | 2011-12-08 | 2013-06-13 | Trw Automotive Gmbh | Piston for a double-acting piston-cylinder unit and hydraulic power steering with such a piston |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016074691A1 (en) | 2016-05-19 |
| EP3164610B1 (en) | 2017-10-18 |
| KR20170082500A (en) | 2017-07-14 |
| EP3164610A1 (en) | 2017-05-10 |
| CN107076179A (en) | 2017-08-18 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Germany Esslingen Patentee after: FESTO Co.,Ltd. Address before: Germany Esslingen Patentee before: FESTO AG & CO. KG |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 |