CN107076179A - Piston and the adjustment equipment for being equipped with the piston - Google Patents
Piston and the adjustment equipment for being equipped with the piston Download PDFInfo
- Publication number
- CN107076179A CN107076179A CN201480082353.9A CN201480082353A CN107076179A CN 107076179 A CN107076179 A CN 107076179A CN 201480082353 A CN201480082353 A CN 201480082353A CN 107076179 A CN107076179 A CN 107076179A
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- China
- Prior art keywords
- piston
- band
- holding tank
- depressed part
- holding
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 7
- 230000005389 magnetism Effects 0.000 claims abstract description 6
- 230000000994 depressogenic effect Effects 0.000 claims description 84
- 239000000463 material Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000012447 hatching Effects 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
- 238000007789 sealing Methods 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
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 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
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 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
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- -1 wherein Substances 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention proposes a kind of for the piston (4) for the adjustment equipment 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 with piston body, holding tank has two lateral groove flanks (33a, 33b) facing with each other.Permanent magnetic device (24) is there are in holding tank (25), permanent magnetic device is made up of the magnet band (35) for bending to the elastic permanent magnetism of loop configuration, and magnet band has two strap end portion sections (35a, 35b) facing with each other.Magnet band (35) have less than holding tank (25) width, wherein, in two strap end portion section (35a, 35b) each of by clamping in holding tank (25).At least one clamping lug boss (46a, 47a for being protruded from one in groove flank (33a, 33b)；46b, 47b) for clamping it is important.
Description
Technical field
The present invention relates to a kind of for the piston for the adjustment equipment that can be run with fluid, in particular for the straight of fluid operation
The piston of line drive, the piston has the piston body of integral type, and piston body has in the region of its outer radial periphery lives relatively
The coaxial holding tank with two lateral groove flanks facing with each other in a ring of the longitudinal axis of plug, holds in holding tank
The permanent magnetic device of position detection can be used for by receiving.Moreover, it relates to a kind of adjustment equipment that can be run with fluid, its is outstanding
It refers to the linear actuator of fluid operation, and it is provided with housing, is disposed with the housing in the way of it can move linearly
Piston.
Background technology
The adjustment equipment of piston of the above-mentioned type is equipped with as well known to the U1 of DE 20 2,005 005 508 and such as structure
Make as linear actuator or damper.During the operation of adjustment equipment, piston relative to adjustment equipment housing motion, its
In, the permanent magnetic device being integrated in piston can be used for by that can be realized to piston with outside position detection piece collective effect
Detect position.In order to be manufactured inexpensively piston, it includes the piston body of the integral type of the holding tank with periphery, is accommodating
Permanent magnetic device has been inserted in groove.Permanent magnetic device is made up of the magnet sections of multiple arcs, and these magnet sections are assembled in piston
When from radially outer is placed to holding tank.However, the manufacture and assembling to magnet sections are relatively high costs.
Piston described in the above-mentioned U1 of DE 20 2,005 005 508 is additionally equipped with loop configuration
Band is guided, guiding band is presented in holding depressed part in a ring of the construction on the periphery of piston body.Guiding band is configured to
In the guided rings of the hollow posts bodily form, guided rings are interrupted in the somewhere on its periphery so that it be based on its elasticity and assembling when
Can temporarily it deploy.The exterior face of the radial direction of band is guided to limit guide surface, guide surface, which can be abutted in slippingly, accommodates piston
On the inner peripheral surface of housing, so that piston can implement the linear motion accurately guided relative to housing.
A kind of piston for working cylinder as known in the A1 of DE 19715858, it is in order to which position is detected and is equipped with ring
The permanent magnet of shape.In order to realize the assembling to the toroidal magnet, the structure of the multi-piece type of piston body is provided with.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
Apply coated with elastomeric material, to be clamped permanent magnet and to be fixed in an economical manner.
The A2 of EP 0 307 569 describe a kind of piston-cylinder assembly, and its piston possesses the piston body of integral type, in piston
The outer of body places the guiding band for being placed with and being interrupted in the somewhere on the periphery of guiding band.Guiding band has the characteristic of spring,
And spring-like it is snapped into annular groove of the construction on the periphery of piston body.In order to realize the position inspection to piston
Survey, piston body possesses depressed part on the somewhere of its periphery, and permanent magnets are presented in the depressed part, and the permanent magnets are directed band
Covered.
The content of the invention
The present invention task be to provide a kind of measure, its can realize make piston be inexpensively equipped with 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 loop configuration
The magnet band of the permanent magnetism of elasticity is constituted, and magnet band has two strap end portion areas facing with each other in the circumferential direction of holding tank
Section, and magnet band width be less than holding tank two groove flanks between spacing, wherein, it is every in two strap end portion sections
Wherein the one of individual two clamp areas adjacent to each other in the circumferential direction of holding tank that holding tank is all maintained at by clamping
In individual, in clamp area, piston body has at least one in the case where holding tank locally narrows relative to one of them respectively
Clamping lug boss on side that is that groove flank protrudes and being pressed into magnet band.
In addition, the present invention is solved in the following way in the adjustment equipment that can be run with fluid of the above-mentioned type, i.e.
It is equipped with the piston constructed under above-mentioned meaning.
Can be particularly simple 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
Put 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 at this in holding tank for assembling.Here, magnet band it is following this
Sample plot positioning, i.e. its two strap end portion sections facing with each other are located in the clamping zone of piston body, in clamping zone,
Holding tank has two clamp areas adjacent to each other in the circumferential direction of holding tank.Here, every in two strap end portion sections
In individual one be both mounted in two clamp areas.Each clamp area is characterised by, in two groove flanks of holding tank extremely
Few one is provided with clamping lug boss, and it protrudes beyond attached troops to a unit groove flank.In this manner, holding tank is in each clamping lug boss
Region in width be less than clear spacing between two groove flanks facing with each other, the clear spacing is more than the width of magnet band.
Therefore, magnet band can be with a wet finger put into by placing or bending around piston body in the region outside clamping zone
Into holding tank, and two strap end portion sections are pressed into when being directed in the clamp area attached troops to a unit respectively with slight pressure
In holding tank.By at least one be located at clamp area in clamping lug boss come magnet band is laterally loaded and by its
It is clamping in holding tank.If magnet is fixed in holding tank in this way, then strap end portion section can not turn over each other again from, from
And be then able to that particularly simple piston is imported into the housing of attached troops to a unit adjustment equipment.Herein need not with hand or by
Assemble device and so fix holding magnet band long, until piston is directed in the housing of adjustment equipment.According to the present invention's
The additional advantage of design is that important component can be by the molding mode manufacture expected inexpensively by non-cutting.
Furthermore, it is possible to tolerance compensating be provided in the very big margin of tolerance by targetedly molding mode, which ensure that magnet
Reliable fixed holding of the band in holding tank.Because be to the assembling of magnet band it is very simple, can be when needed
Necessary installation step is automated, this can further reduce the manufacturing cost of piston again.
The scheme that is advantageously improved of the present invention is learnt by dependent claims.
Preferably, piston body is equipped with multiple strap end portion sections to attaching troops to a unit respectively in each clamp area of holding tank
The clamping lug boss loaded.
The mode of being implemented as follows is feasible, and in this embodiment, in each clamp area, at least one pair of clamps lug boss
It is directly opposite on the axis direction of piston.In this manner, the strap end portion section attached troops to a unit is convex in directly opposite clamping
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 be respectively provided with 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 circumferences in holding tank in each clamp area
The clamping lug boss for the arrangement that misplaced with having spacing each other on direction.
The mode of being implemented as follows is considered to be particularly advantageous, in this embodiment, there are in each clamp area
At least two and especially lucky two the clamping that is disposed adjacent to having spacing is convex each other in the circumferential direction of holding tank
The portion of rising, the groove flank for attaching troops to a unit different to these clamping lug bosses.That is, when the first clamping lug boss is arranged therein one
When on groove flank, the clamping boss being spaced from the circumferential direction of holding tank is on opposite groove flank.
This in these clamping lug bosses it is very advantageous that do not have the clamping for clamping lug boss another groove flank corresponding to being associated with raised
Portion is opposite.Therefore, in the region of each clamping lug boss, the strap end portion section attached troops to a unit clamps on the one hand its respectively
In one clamping lug boss and another aspect opposite groove flank between.Clamp alternating of the lug boss on two groove flanks
Arrangement caused by as a result, strap end portion section wind through clamp area, or with somewhat undulate to a certain extent
Be longitudinally oriented.This design of clamp area is extremely insensitive for tolerance, and for making each band edge
Portion's section also obtains reliable clamping in the case of the big margin of tolerance, and this can decline manufacturing cost especially
It is low.
Have been found to advantageously, in respective clamp area, holding along what the longitudinal direction of piston was measured at two
The clear spacing for the projection received in the circumferential direction of groove between spaced lug boss is less than the width of magnet band.Because clamping
Lug boss is spaced from each other, so strap end portion section still is able to relatively simply penetrate or be pressed into holding tank from radially outer
In.
Preferably, the clear spacing between the opposite groove flank of each clamping lug boss and holding tank is equal to or more than magnetic
The width of body band.
In addition have been found to advantageously, in each clamp area, be arranged in the clamping lug boss on different groove flanks
Between the spacing measured along the circumferential direction of holding tank it is big at least as the width of magnet band, but be magnet band to the maximum
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 desirably, folder
Hold lug boss and be configured with the moulding of strip in ribbed respectively, and respectively from the region of trench bottom towards holding tank radial direction
Channel opening direction extension.
Also advantageously, clamping lug boss is faced on the end regions of radial slot opening towards the groove flank attached troops to a unit at it
Tilt.In this manner, it is possible to make to treat that clamping strap end portion section is easily pressed into holding tank.
For magnet band, the rectangular cross section that can be inexpensively made is suitable.Magnet band preferably refers to curved
It is bent into desired annular band bodyTwo strap end portion section either loosely mutually recline otherwise with
The mode with small spacing is arranged each other.
Preferably, magnet band is made up of banded band body, is made up of with body the plastic material of elastically deformable, and band body is set
There are permanent-magnet pieces.Permanent-magnet pieces preferably refer to ferromagnetic particle, and it is integrated into band body and magnetized as needed.
The piston body of integral type is preferably made up of rigid material.This then correspondingly applies to show as the one of piston body
The clamping lug boss of the part of body formula.For example, piston body is made up of the plastic material of metal, ceramics, glass or hard.
Advantageously, piston body is not only to have the clamping zone for being uniquely equipped with two adjacent clamp areas, but
Possess two clamping zones as follows：It is associated with piston body each other in diametrically opposite neighboring area.With the party
Formula there are bigger changeability when magnet band is placed in holding tank.
Advantageously, in addition to magnet band, piston is also equipped with suitable for entering the housing of adjustment equipment to piston
The guiding band of row straight line guiding.Guiding band is coaxially arranged as magnet band in piston body.
Guiding band is suitably located in holding depressed part in a ring of the construction in piston body, and it is surrounded in ring with one heart
The holding tank of shape, and possess the axial width bigger than holding tank.In this manner, holding tank is opened with the external groove of its radial direction
Mouth is passed into the depressed part bottom for keeping depressed part.It is assemblied in and keeps in depressed part, ground structure in a ring guiding band
Magnet band is surrounded in radially outer, and suitably covers magnet band.
When guiding band is presented in the coaxial holding depressed part in a ring of the longitudinal axis of opposing pistons and herein
When being securely held on the shape sealed in the radial direction of the longitudinal axis of piston in holding depressed part, guiding band energy
Particularly simply it is assembled on the piston body.Although guiding band that there is loop configuration in the assembled state, on the whole
It is a kind of band body that is limited, possessing two reciprocal strap end portion sections, it is kept in depressed part to be assemblied in
And simply can be placed around piston body.Observe in cross-section, keep two depressed part sides facing with each other of depressed part
The wing has the type exterior feature portion of side female respectively, wherein, there is radial direction spacing in type exterior feature portion with the depressed part bottom away from holding depressed part respectively
Mode have towards opposite depressed part flank direction protrude holding lug boss in a ring.Two holding lug boss energy
Rabbet with being pressed into the lateral edges faced of the guiding band kept in depressed part to enough shape sealeds, and thus make guiding band
Piston shape sealed in the radial direction fixed keep.
The mode of being implemented as follows is particularly suitable, and in this embodiment, guiding band possesses the characteristic of elastically deformable, from
And keep lug boss can guiding with local deformation in the case of and be pressed into the case where constructing the interlocking of shape sealed
Into the lateral edges attached troops to a unit respectively of guiding band.In the state of unassembled, guiding band suitably has rectangular horizontal stroke herein
Section.
There is also have following feasible program as an alternative, i.e. the lateral edges of guiding band are implemented with joint construction so that guiding band
It can lock or can snap onto in holding depressed part.
Brief description of the drawings
The present invention is elaborated with reference to institute's accompanying drawing.Wherein：
Fig. 1 shows the sectional side elevation preferred embodiment through the adjustment equipment according to the present invention, adjustment equipment dress
Have the equally advantageous embodiment of the piston according to the present invention；
Fig. 2 illustrates the fragment II for using chain-dotted line peripheral frame in Fig. 1 of piston to amplify, wherein, section corresponding to Fig. 4 and
The hatching line II-II described in 5；
Fig. 3 shows the cross section through piston according to Fig. 1 hatching line III-III, wherein, it is not drawn into remaining of adjustment equipment
Part, and wherein, guiding band and magnet band are only shown dotted line；
Fig. 4 shows the side view for the piston that the arrow IV in Fig. 2 is radially seen, wherein, additionally enlargedly
The fragment with chain-dotted line peripheral frame is drawn, and wherein, guiding band is not shown for clarity；And
Fig. 5 is with diagramatic way corresponding with Fig. 4 to check that direction shows that the other radial direction of piston is regarded according to arrow IV
Figure, wherein, here it is shown that the guiding band under confined state.
Embodiment
Fig. 1 shows being run with fluid for the linear actuator 1a operated in embodiments as fluid using vertical section
Adjustment equipment 1.However, the use scope of the present 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 housing 2, and housing defines housing 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 direction of motion of the longitudinal axis 5 of piston 4 along piston 4 is stretched
Open up and preferably overlapped with the longitudinal axis 6 of housing chamber 3.
End wall 7a, the 7b of housing chamber 3 respectively by housing 2 on two sides are closed.Extend between two end walls 7a, 7b
Single type or the body 8 of multi-piece type undertake peripheral, radially outer the gauge of housing chamber 3, the inner face of body, which is limited, is in
The piston running face 9 of cylinder shape.End wall 7a, 7b are suitably configured to the case lid separated relative to body 8 and by fastening
Part is connected with body 8.But there is also following feasible program, i.e. at least one in end wall 7a, 7b with body 8 integrally
Construction.
The outline of the radial direction of piston 4 and the Internal periphery of housing chamber 3 match, thus piston when it moves along a straight line along work
Plug running face 9 is slided.Preferably, piston 4 is equipped with the guide surface 10 preferably in cylinder shape on the periphery of its radial directed, draws
Guide face is located on piston running face 9 in the way of it can slide, so that piston 4 by guide surface 10 and is lived when it moves along a straight line
Collective effect between plug running face 9 guides come the straight line obtained relative to housing 2.
By piston 4, housing chamber 3 is axially divided into two working chambers 12a, 12b, the stream outside Fig. 1 section
Body passage is led in working chamber respectively, so that being controllably possibly realized to two working chamber 12a, 12b loading fluids.With the party
Formula, piston 4 can be moved along a straight line and be driven for the axis direction relative to housing 2 along longitudinal axis 6.
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 outside housing 2 being moved with piston 4 on the power coupled interception part 14.
Power interception part is piston rod 15 in embodiment, and piston rod penetrates at least one in the case of sealedly in the way of it can slide
Individual end wall 7b, and piston rod is fastened on piston 4 using its section for being located at the inside of housing chamber 3.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 part motion being displaceably supported on outside housing 2.
Piston 4 possesses preferably disk-shaped piston body 16.Piston body 16 has the longitudinal axis 5 of opposing pistons 4 at a right angle
Piston body sagittal plane 16a.Via piston body 16, piston 4 is fastened in embodiment on piston rod 15.Exemplarily, it is living
Cock body 16 is constructed in disk formly, and is run through by the fastener hole 17 at center, 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 up and in embodiment by gold of rigid material
Category, is especially made up of aluminium diecasting.As the alternative material for piston body 16, for example, it can enumerate ceramics, glass or hard
Matter plastics, wherein, composite is also feasible.
Piston body 16 carries the concentric seal 18 of relative longitudinal axis 5 in the region of its periphery, and seal is in work
Plug 4 is abutted on piston running face 9 in the state of being encased in adjustment equipment 1 in the way of it can slide.Seal is prevented
Fluid transfer occurs between two working chambers 12a, 12b.Exemplarily, seal 18 is made up of two sealing rings 18a, 18b, it
Be fixed on piston body 16 with having axial spacing each other.Preferably, each sealing ring 18a, 18b are maintained at radially outward spacious
In binding groove 19a, 19b for opening, binding groove is constructed in piston body 16 in its outer radial periphery.Each binding groove 19a, 19b
It is coaxial to be arranged in the ground of longitudinal axis 5.
Guide surface 10 is suitably formed by the outer peripheral face being radially outward directed of the guiding band 22 with loop configuration, guiding
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 depressed part 23 in a ring of axis 5, the guiding radial direction of band 22 sinks to wherein and guides band 22 to remain at.
Suitably, piston 4 is equipped with permanent magnetic device 24, and 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 motion 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 piece that magnetic field is responded can determine the current of the piston 4 of carrying permanent magnetic device 24 in the operation of adjustment equipment 1
Axial location.Position detection piece for example includes one or more sensors, such as 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 the ground of longitudinal axis 5
On.
With at least one guiding band 22 in combination, it is possible that guiding band in the corresponding design of piston body 16
22 and permanent magnetic device 24 in the axial direction abreast be arranged on piston body 16 on.But in order to be conducive to the narrow structure class of piston 4
Type and advantageously, more specifically as follows permanent magnetic device 24 with the guiding identical axial height of band 22 to arrange,
To arrange, i.e. permanent magnetic device 24 is directed band 22 and surround with one heart.The guiding band is applied to 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, axial direction of the channel opening along piston 4 is than keeping depressed part 23 narrower.Holding tank 25 is outside in footpath
Portion is kept depressed part 23 and surrounded, wherein, holding tank is passed into the depressed part bottom 27 for keeping depressed part 23 with its channel opening 26
In.Depressed part bottom 27 refers to keeping the bottom surface radially of depressed part 23.
Preferably, the channel opening 26 of the radial directed of holding tank 25 is passed into holding depressed part 23 in axial intermediate region
In.In this manner, coupling depressed part bottom section 27a, 27b having in a ring respectively in the axial both sides of channel opening 26, it is recessed
Portion's bottom section is preferably the profile of cylinder shape.
The covering channel opening 26 of guiding band 22 kept in depressed part 23 is arranged in, and therefore also covering is arranged in holding tank
Permanent magnetic device 24 in 25.
For guide band 22 keep depressed part 23 have two on the axis direction of the longitudinal axis 5 of piston 4 mutually
Lateral depressed part flank 28a, 28b spaced apart and facing with each other.Each depressed part flank 28 is connected to depressed part bottom
In portion 27, wherein exemplarily, each depressed part flank 28a, 28b are transited into two depressed part bottom sections 27a, 27b
One of them.It is unlimited in the radial side opposite with depressed part bottom 27, that is, in radially outer to keep depressed part 23.
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 opposite to the channel opening 26 in radially outer.
The bore of trench bottom 32 is less than the bore of depressed part bottom 27.
Holding tank 25 has two spaced on the axis direction of longitudinal axis 5 and simultaneously facing with each other sides
To groove flank 33a, 33b, it is referred to below for preferably distinguishing also referred to as the first groove flank 33a and the second groove flank
33b.The two groove flanks 33a, 33b are transited into the depressed part bottom 27 for keeping depressed part 23 in embodiment from inner radial.
Clear spacing between two groove flanks 33a, 33b is less than the clear spacing between two depressed part flanks 28a, 28b.Holding tank 25 is excellent
Choosing has at least substantially rectangular cross section.
Guiding band 22 has loop configuration in the state of being fixed in holding depressed part 23.However, loop configuration is in itself
Not fully close, but possess discontinuities 34.Preferably, guiding band 22 refers to the band body with finite length, this
Band body possesses two reciprocal strap end portion section 22a, 22b.Preferably, guiding band is made into linear band body, its
Just bending is circularized only when being then assemblied on piston body 16.This point benefits from guiding band 22 and possesses elastically deformable
Characteristic.
In the assembled state, guiding band 22 winds co-axially around piston body 16 and is placed to holding depressed part 23
In, wherein, guide two strap end portion section 22a, 22b of band facing with each other on the circumferential direction 23a for keeping depressed part 23.Protect
The circumferential direction 23a for holding depressed part 23 is around the direction of longitudinal axis 5 and indicated in figure 3 by double-head arrow.
Suitably, there are between two strap end portion sections 22a, 22b it is at least small, limit between discontinuities 34
Away from.
The front faces facing each other in the circumferential direction for keeping depressed part 23 of band 22 are guided preferably in the whole of guiding band 22
Tilted on individual width.Here, two strap end portion sections 22a, 22b inclined end face facing with each other prolong with being preferably parallel to each other
Stretch.
Permanent magnetic device 24 is preferably made up of the magnet band 35 for the elastic permanent magnetism for bending to loop configuration, and magnet band 35 is fitted
Preferably there is limited length, and possess two reciprocal strap end portion section 35a, 35b.Preferably, magnet band 35 is made
Be in line the band body of shape, and when it is assembled in holding tank 25, it is bent to loop configuration.Magnet band 35 is therefore at it
Bent in the case of being suitably radially directed at the same time when being assemblied on piston body 16 in holding tank 25 around piston body 16, this
Plant assembling and suitably correspond to the assembling to guiding band 22.
The characteristic that magnet band 35 possesses elastically deformable is benefited from this assembling.Preferably, magnet band is by provided with permanent-magnet pieces
Banded band body constitute, this is made up of with body the plastic material of elastically deformable, and 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, and it is embedded to when manufacturing magnet band in the way of being finely distributed
Magnetized in banded band body and then.
When magnet band 35 is already prepared to be put into holding tank 25, two strap end portion 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 around the direction of longitudinal axis 5 and in Fig. 3
In indicated by double-head arrow.The discontinuities of the loop configuration of magnet band 35 are there are between two strap end portion sections 35a, 35b
36, the discontinuities especially show as small gap, so that circumferential directions of two strap end portion section 35a, 35b in holding tank 25
25a is upper opposite with the spacing of very little.The circumferential direction 25a of holding tank 25 is the direction for the longitudinal axis 5 for surrounding piston 4.
Magnet band 35 has end face 39a, 39b of two longitudinal direction sides, and they divide in the state of being assemblied in holding tank 25
Mian Dui be in groove flank 33a, 33b one.
Although guiding band 22 is had in the state of being put into holding depressed part 23 based on the characteristic of its spring
Dug in two strap end portion sections 22a, 22b region and from the tendency for keeping depressed part 23 to depart from, but guide band 22
Only kept together based on suitable fixation by piston body 16, so that it retains its loop configuration, in the ring junction
In structure, guiding band is all fixed in holding depressed part 23 over the whole length.
Suitably, it is 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, i.e. piston body is fixed as follows to maintain the magnet band 35 being put into holding tank 25, i.e. although
Elasticity based on magnet band and occur expansion tendency, but magnet band is also arranged in holding tank 25 simultaneously in its whole length
And do not dug in two strap end portion sections 35a, 35b region.
Effect described herein is realized in the following way at the aspect of guiding band 22, i.e. is observed, is kept in cross-section
Two depressed part flanks 28a, 28b of depressed part 23 have the type exterior feature portion of side female respectively, so that each depressed part flank
28a, 28b shape sealed with guiding in two of band 22 lateral edges 37a, 37b oriented on the axis direction of longitudinal axis 5
A respective face pair lateral edges 37a, 37b interlocking.Shape sealed in working in the radial direction on longitudinal axis 5,
So as to guide band 22 to remain fixed at holding depressed part 23 over the whole length by depressed part flank 28a, 28b of type exterior featureization
In.Suitably, it is related to the interlocking for the shape sealed that can be unclamped, guiding band is replaced in case of need so as to realize.
The type exterior feature portion of depressed part flank 28a, 28b side female is especially showed in each depressed part flank 28a, 28b
For holding lug boss 38a, the 38b leant out towards opposed respectively depressed part flank 28b, 28a direction, lug boss is kept to be concentric with
The ground of longitudinal axis 5 arrangement of piston 4, and extend without interruption on the circumferential direction 23a for keeping depressed part 23.Two holdings
Each in lug boss 38a, 38b has in the radial direction on longitudinal axis 5 with the depressed part bottom 27 away from holding depressed part 23
On the mode of spacing arrange, so as to respective keep raised in being radially positioned for respective depressed part flank 28a, 28b
Holding depressed part 43a, 43b of closed in itself in a ring are obtained in region between portion 38a, 38b and depressed part bottom 27, is drawn
Conduction band 22 can be embedded into the longitudinal axis for keeping in depressed part 43a, 43b and keeping depressed part 43a, 43b to be also concentric with piston 4
The ground of line 5 is arranged.
Preferably, guiding band 22 has rectangular horizontal stroke under the original state being not yet presented in holding depressed part 23
Section.Guide the width of band 22 in an initial condition than it is opposite keep between lug boss 38a, 38b along longitudinal axis 5
The clear spacing that measures of axis direction it is larger.It is accomplished that in this way, keeps lug boss 38a, 38b in guiding band 22
It is placed to the side for being pressed into and attaching troops to a unit respectively in the case where guiding band 22 is locally deformed with the state of keeping in depressed part 23
In edge 37a, 37b.The material being pushed out due to press-in of guiding band 22 is embedded into holding depressed part 43a, 43b.With this
Mode has obtained the shape sealed worked in the radial direction in piston 4 between piston body 16 and guiding band 22, the shape
Shape is sealed to be used to make guiding band 22 over the whole length on two lateral edges 37a, 37b by depressed part flank 28a, 28b
The type exterior feature portion of side female fix holding.
In assembling guiding band 22, the power that effect is related to the radial direction of longitudinal axis 5 is taken in guiding, so as to guide band to be pressed
Enter two keep between lug boss 38a, 38b and it is clamping wherein.
It there are the feasible program for strengthening shape sealed effect in the following way, i.e. guiding band 22 is in two side
Possess preshaped interlocking profile on edge 37a, 37b, it has wide with depressed part flank 28a, 28b of type exterior featureization complementary type
Portion, so as to guide band 22 to lock or can snap onto in holding depressed part 23 over the whole length.
Following clamping principle has suitably been used in order to fix magnet band 35：Wherein, magnet band 35 is not whole long at it
It is clamping by piston body 16 on degree, but only in some regions and herein especially in two strap end portion section 35a, 35b
On it is clamping.Two gripping for strap end portion section 35a, 35b are carried out independently of one another.Two strap end portion section 35a,
35b is not secured on each other, but is only secured to respectively on piston body 16.
Piston body 16 at least the one of its peripheral periphery on possess clamping zone 44, piston body 16 is in the clamping zone
On construct as follows, i.e. piston body can make two strap end portion sections 35a, 35b are separate clampingly to remain fixed at
In holding tank 25.Here, piston body 16 possesses two phases each other on the circumferential direction 25a of holding tank 25 in clamping zone 44
Fixation maintains strap end portion section with being configured for force closure respectively by adjacent clamp area 45a, 45b, clamp area 45a, 45b
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 measurement of line 5, or measured between two sides 39a, 39b.In addition, magnet band 35 is suitably with rectangular
Shape of cross section.
The width B of magnet band 35 is less than the clear spacing A1 between two groove flanks 33a, 33b of holding tank 25.Therefore, magnetic
Body band 35 is in holding tank 25 is wherein to that region for the section for being equipped with groove flank 33a, 33b with the gap of very little
Mode is contained in holding tank 25.
And piston body 16 possesses at least one relative to two groove flank respectively in two clamp areas 45a, 45b region
Clamping lug boss 46a, 47a that a direction towards opposite groove flank 33b, 33a in 33a, 33b is protruded；46b, 47b,
Clamping lug boss causes holding tank 25 is local to narrow.It is accomplished that magnet band 35 is in two strap end portion area by local narrow
It is clamping in one or more in section 35a, 35b region in holding tank 25 and to dig.It can also be referred to as tightening up
The narrowed areas at position is made marks at 48 by arrow.
It there are following feasible program, i.e. unique clamping lug boss is provided only with each clamp area 45a, 45b,
Its spacing away from opposite groove flank is smaller than the width B of magnet band 35, so that raised mainly due to unique clamping
Portion is pressed into side 39a, 39b for facing of magnet band 35 and causes clamping.
There is also have following feasible program, i.e. 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
Construct on one groove flank and herein on identical groove flank 33a, 33b.
In addition following feasible program is there are, i.e. at one or in two clamp areas 45a, 45b, in two groove flanks
Two opposite clamping lug bosses on the axis direction of the longitudinal axis 5 of piston 4 are provided with 33a, 33b, they towards that
This leans out and limited tightens up position 48 for sandwich attached troops to a unit strap end portion section 35a, 35b.Here, in each clamping
Only a pair of or multipair such opposite clamping lug boss are there are in area 45a, 45b.
Two clamp areas 45a, 45b particularly preferred design are realized in the present embodiment and are said in the accompanying drawings
It is bright.Therefore, multiple circumferential directions in holding tank 25 are owned by each in two clamp areas 45a, 45b of piston body 16
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 with mutually staggering 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 groove flank 33a, 33b, and be arranged on different groove flanks
On 33a, 33b.Exemplarily, in each clamp area 45a, 45b, first clamping lug boss 46a, 46b is formed in the first groove 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 groove flank 33b.Respective clamping lug boss 46a, 47a are opposite in corresponding another groove flank 33a, 33b；
Clamping lug boss is preferably there is no in 46b, 47b region, there, related groove flank 33a, 33b is 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 on to direction to tighten up position or narrowed areas 48, they from reciprocal groove flank 33a, 35b by stretching into
To clamping lug boss 46a, 47a in holding tank 25；46b, 47b cause.
Obtained by the arrangement, be each pressed into strap end portion section 35a, 35b in clamp area 45a, 45b with
Slight wave circumferential direction 25a wind throughs respective clamp area 45a, 45b along holding tank 25 and thus effectively
It is clamping.In the clamping scheme of the type it is not necessary that, in each clamping lug boss 46a, 47a；46b, 47b with it is relative
Measured clear spacing A2 is less than the width B of magnet band 35 between groove flank 33a, 33b for putting.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, i.e.
Magnet band 35 is deformed to meander-like in each clamp area 45a, 45b so that especially also adjacent to clamping lug boss 46a,
47a；It is tensioned in 46b, 47b region using groove flank 33a, 33b.
Clamping effect fatefully passes through alternative based on strap end portion section 35a, 35b at this in clamping section 45a, 45b
The clamping lug boss that ground is located on different groove flank 33a, 33b is forced into indentation or corrugated or is at least what is bent
Longitudinal moulding, and the elasticity based on magnet band 35 and with deforming back to the tendency of its linear initial model so that
It is tensioned in holding tank 25 transverse to the circumferential direction 25a of holding tank.
Have been found to be advantageously, 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, in order to generate optimal clamping, have been found to desirably, in each clamp area 45a, 45b it is following this
Sample ground clamping lug boss 46a, the 47a of choice arrangement on different groove flank 33a, 33b；Between 46b, 47b along holding tank
The spacing A4 that measures of circumferential direction, i.e. its width that is big and being magnet band to the maximum at least as the width B of magnet band
Twice of B.
It is certified to be, there are two clamping lug bosses 46a, 47a in each clamp area 45a, 4b；46b, 47b are just enough
Strap end portion section 35a, 35b that reliably clampingly fixed holding residence is attached troops to a unit.However, can also 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 on its two strap end portion sections 35a, 35b, magnet band 35 has just been securely held on
In holding tank 25.
But for speed when assembling piston 4 advantageously, at least one in the circumference side of piston body 16
The other clamping zone 44a for the structure described is set 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, and the other clamping zone 44a can serve as illustrated clamp area
The alternative in domain 44 is used to fix two strap end portion 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 because they are based on
The clamping action that is obtained and cause that importing magnet band 35 becomes difficult in principle.
Clamp lug boss 46a, 47a；46b, 47b can be designed arbitrarily in principle.Importantly, they are in holding tank 25
Trend in cause local narrow.Following molding mode is proved to be particularly suitable, i.e. in the molding mode, each folder
Hold lug boss 46a, 47a；46b, 47b are configured with the moulding of strip according to Fig. 2 and 3 in ribbed, and respectively from holding tank
Play the direction extension towards the radial slot opening 26 of holding tank 25 in the region of 25 trench bottom 32.It is favourable first under the relation
It is, clamping lug boss 46a, 47a；46b, 47b its in face of radial slot opening 26 end regions on have radially outward and
Towards the rake 49 for groove flank 33a, 33b extension attached troops to a unit.Rake 49 forms inclined guide surface, when strap end portion section exists
When being loaded the power with pressing from radially outer during assembling, guide surface makes respective strap end portion section 35a, 35b like clockwork
It is incorporated into holding tank 25.
Claims (16)
1. piston, it is used for the adjustment equipment that can be run with fluid, described in particular for the linear actuator of energy fluid operation
Piston has the piston body (16) of integral type, and the piston body has relatively described piston (4) in the region of its outer radial periphery
The coaxial holding tank with two lateral groove flanks (33a, 33b) facing with each other in a ring of longitudinal axis (5)
(25) permanent magnetic device (24) of position detection can be used for by, being accommodated in the holding tank, it is characterised in that the permanent magnetic device
(24) it is made up of the magnet band (35) for the elastic permanent magnetism for bending to loop configuration, there are the magnet band two to be held described
Receive strap end portion section (35a, 35b) facing with each other in the circumferential direction of groove (25), and the width of the magnet band is less than institute
The spacing between two groove flanks (33a, 33b) of holding tank (25) is stated, wherein, in two strap end portion sections (35a, 35b)
Each strap end portion section is maintained at two circumference sides in the holding tank (25) of the holding tank (25) by clamping
Upwards in one in mutual adjacent clamp area (45a, 45b), in the clamp area, the piston body (16) has respectively
At least one the holding tank (25) locally narrow in the case of relative to one of groove flank (33a, 33b) protrude and
It is pressed into clamping lug boss (46a, 47a on the side of the magnet band (35) (39a, 39b)；46b、47b).
2. piston according to claim 1, it is characterised in that the piston body (16) is in each of the holding tank (25)
Multiple clamping lug boss (46a, 47a are respectively provided with clamp area (45a, 45b)；46b、47b).
3. piston according to claim 1 or 2, it is characterised in that the piston body (16) is in the holding tank (25)
It is respectively provided with and multiple is arranged with having spacing each other in the circumferential direction of the holding tank (25) in each clamp area (45a, 45b)
Clamping lug boss (46a, 47a；46b、47b).
4. piston according to claim 3, it is characterised in that in each clamp area (45a, 45b), at least two in institute
State clamping lug boss (46a, the 47a being disposed adjacent to having spacing each other in the circumferential direction of holding tank (25)；46b、47b)
It is arranged on different groove flanks (33a, 33b), wherein, described clamping lug boss (46a, 47a；46b, 47b) not with
Clamping lug boss on another groove flank (33b, 33a) is opposite.
5. piston according to claim 4, it is characterised 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. the piston according to claim 4 or 5, it is characterised in that each clamp lug boss (46a, 47a；46b, 47b) with
Clear spacing between the opposite groove flank (33a, 33b) of the holding tank (25) is equal to or more than the magnet band (35)
Width (B).
7. the piston according to any one of claim 4 to 6, it is characterised in that in each clamp area (45a, 45b),
It is arranged in clamping lug boss (46a, 47a on different groove flanks；46b, 47b) between the circumference along the holding tank (25)
Width (B) of the spacing (A4) that orientation measurement is arrived at least with the magnet band (35) is equally big, and is the magnet band to the maximum
(35) twice of width (B).
8. piston according to any one of claim 1 to 7, it is characterised in that in two clamp areas (45a, 45b)
Lucky two clamping lug bosses (46a, 47a are disposed with each；46b、47b).
9. piston according to any one of claim 1 to 8, it is characterised in that described clamping lug boss (46a, 47a；
46b, 47b) it is configured with the moulding of strip in ribbed respectively, and respectively from the trench bottoms (32) of the holding tank (25)
Play the direction extension towards the radial slot opening (26) of the holding tank (25), and/or the clamping lug boss in region
(46a、47a；46b, 47b) its in end regions of the radial slot opening (26) towards the groove flank attached troops to a unit
(33a, 33b) is tilted.
10. piston according to any one of claim 1 to 9, it is characterised in that the magnet band (35) has rectangular
Cross section, and/or the magnet band (35) have band that is banded, being made up of the plastic material of elastically deformable
Body, the band body is provided with permanent-magnet pieces.
11. piston according to any one of claim 1 to 10, it is characterised in that the piston body (16) is by rigid
Material is constituted, and is suitably made up of metal.
12. the piston according to any one of claim 1 to 11, it is characterised in that the piston body (16) two that
This on diametrically opposite neighboring area respectively have for the magnet band (35), possess two clampings adjacent to each other
The clamping zone (44,44a) in area (45a, 45b), wherein, the two clamping zones (44,44a) can be alternatively used for clamping two
Strap end portion section (35a, 35b).
13. the piston according to any one of claim 1 to 12, it is characterised in that holding tank (25) in a ring is with one heart
The holding depressed part (23) in a ring that ground is built into the piston body (16) is surrounded, wherein, the holding tank is than described
Keep depressed part (23) narrow and the holding depressed part is passed into the external channel opening of the radial direction of the holding tank (26)
(23) in depressed part bottom (27), wherein, maintained in the holding depressed part (23) and cover the magnetic in radially outer
Body band (35), ground structure in a ring guiding band (22).
14. the piston according to any one of claim 1 to 13, it is characterised in that the radial direction in the piston body (16)
Be configured with the region of periphery relatively described piston (4) longitudinal axis (5) it is coaxial in a ring have two it is facing with each other
Lateral depressed part flank (28a, 28b) holding depressed part (23), it is described holding depressed part in maintain with annular
The guiding band (22) of structure, it is described guiding band have two it is described holding depressed part (23) circumferential direction on it is facing with each other
Strap end portion section (22a, 22b), wherein, observe in cross-section, two depressed part flanks of the holding depressed part (23)
(28a, 28b) has the type exterior feature portion of side female respectively, and respectively with the depressed part bottom away from the holding depressed part (23)
(27) mode for having radial direction spacing has the holding in a ring leant out towards the direction of opposite depressed part flank (28b, 28a)
Lug boss (38a, 38b), it is described keep boss shapes in locking manner with it is described guiding band (22) face lateral edges (37a,
37b) rabbet.
15. piston according to claim 14, it is characterised in that the holding lug boss (38a, 38b) is in the guiding
The guiding band (22) is pressed into the case of band (22) local deformation and in the case where constructing the interlocking of shape sealed
In the lateral edges (37a, 37b) attached troops to a unit respectively, wherein, the guiding band (22) is not yet being assemblied in the holding depressed part (23)
In original state under suitably have rectangular cross section.
16. the linear actuator of the adjustment equipment that can be run with fluid, especially fluid operation, it has housing (2), described
Piston (4) is disposed with housing in the way of it can move linearly, it is characterised in that the piston (4) is according to claim 1 to 15
Any one of construct.
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 true CN107076179A (en) | 2017-08-18 |
| CN107076179B 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 |
|---|---|
| KR20170082500A (en) | 2017-07-14 |
| CN107076179B (en) | 2018-11-30 |
| EP3164610A1 (en) | 2017-05-10 |
| EP3164610B1 (en) | 2017-10-18 |
| WO2016074691A1 (en) | 2016-05-19 |
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