CN209244969U - Air-operated control device for motor vehicles - Google Patents
Air-operated control device for motor vehicles Download PDFInfo
- Publication number
- CN209244969U CN209244969U CN201821329121.0U CN201821329121U CN209244969U CN 209244969 U CN209244969 U CN 209244969U CN 201821329121 U CN201821329121 U CN 201821329121U CN 209244969 U CN209244969 U CN 209244969U
- Authority
- CN
- China
- Prior art keywords
- air
- control device
- operated control
- working piston
- working
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The utility model relates to a kind of air-operated control devices (10) for motor vehicles, it includes working cylinder (14) and working piston (12), they jointly limit pressure chamber (16), wherein, at least part of working piston (12) struts to form free space (54) or surround free space (54) in cross-section, wherein, it is disposed within free space (54) valve cell (56).Additionally propose another air-operated control device (10).
Description
Technical field
The utility model relates to a kind of air-operated control devices for motor vehicles.
Background technique
It is known via the air-operated control device that valve cell controls.In common power train, these valve cells are most
It is arranged at case of transmission.Based on this, valve cell is via hose or the pneumatic channel being introduced into corresponding shell and pneumatically
Manipulation device is connected.The structural requirement is between the pressure chamber and valve cell that can be filled by pressure medium of air-operated control device
Length distance.Pneumatic pressure medium is spread in the cavities, so that long distance causes the manipulation time accordingly grown.Pass through this
The longer dead time of kind, needs higher adjustment cost, to make air-operated control unit remove and move into a limiting fashion.
In addition, arrangement of the valve cell at case of transmission needs the structure space within power train.
Utility model content
Therefore, target is to provide a kind of air-operated control device, in manipulation process with small dead time and this
Outer saving structure space.
The target is realized by a kind of air-operated control device.Comprising: working cylinder and working piston, the working cylinder and work
Make piston and jointly limit pressure chamber, wherein at least part of the working piston struts to form free sky in cross-section
Between or surround free space, wherein be disposed with valve cell within the free space.The air-operated control dress explained in detailed below
It sets suitable for motor vehicles.Expediently, it is using in the commercial vehicle with pneumatic system.Air-operated control device has work
Cylinder and working piston.Working cylinder and working piston, which are implemented as, can move axially in relation to each other and seal relative to each other.
Pressure chamber is limited by working cylinder and working piston.Particularly advantageously, pressure chamber is only by working cylinder and work
Piston is limited and is surrounded by it.However, at least another component can also do in the variant schemes of substitution for closed pressure chamber
It contributes out.Illustratively, another component can be made up of the guiding tube of inner radial.For this purpose, working piston can be fixedly
And airtightly it is connected with guiding tube, wherein working cylinder can axially slide on guiding tube.Correspondingly, work is lived
Plug, working cylinder and guiding tube airtightly limit or surround pressure chamber.Expediently, in working cylinder and other component, that is, being especially and drawing
Sealing element is disposed between conduit.
In air-operated control device, working piston be configured in an adequate manner position fix and working cylinder be configured to can
It is axially moved.Working piston forms free space.The portion that the free space radially stretches at working piston via at least one
The part divided and axially stretched limits, these parts strut to form the free space.For example, working piston can also substantially structure
Cause U-shaped or C-shaped, wherein U-shaped or C-shaped strut to form free space.In other words, free space be arranged in U-shaped or C-shaped it
It is interior.In the case where last, free space can be constructed within the working piston of U-shaped.
Within free space, valve cell, preferably multiple valve cells are arranged.In order to run valve cell, in order to convey
With export pressure medium, free space is connected with pneumatic system, such as the pneumatic channel via hose or construction at shell
It is connected.Furthermore valve cell is effectively connect with pressure chamber so that by valve cell pressure medium can be conveyed to pressure chamber or
Export pressure medium.Conveying and export pressure medium are for making the air-operated control device of controlled clutch remove and move into.
There are two advantages for such arrangement tool.Firstly, passing through the pressure chamber of valve cell and air-operated control device
It spatially approaches, above-described dead time is reduced to minimum, for the control time of air-operated control device is short.This
Outside, it is arranged within free space by air-operated control device, optimally makes full use of the structure space within power train.It is logical
The free space made full use of for arranging one or more valve cells is crossed, at case of transmission, structure space becomes freely.
Particularly advantageously, component is not arranged within pressure chamber.Pressure chamber is only by working piston, working cylinder and must
One or more other component surrounds when wanting, wherein does not also arrange other components, such as preloading spring within pressure chamber.?
In the state that air-operated control unit is pressed into, i.e. when clutch is closed and between motor and speed changer there are when torque connection,
The volume minimization of pressure chamber.In the state of friction clutch closure, the volume of pressure chamber almost can be zero, wherein especially
It is that the face of the pressure chamber side of working piston and working cylinder is substantially in case that there is no gap against each other.
It is, however not excluded that component is arranged within pressure chamber.In particular, preloading spring may be arranged within pressure chamber.
Valve cell is arranged within free space fixedly to be implemented to fill in air-operated control especially by working piston position
It sets place to realize, wherein working cylinder is configured to be axially moved relative to working piston and relative to air-operated control device.
Air-operated control device is indirectly or directly fixedly placed at case of transmission.Correspondingly, air-operated control fills
The fixed arrangement in the position set is the not movable arrangement fixed relative to air-operated control device and its shell, or relative to
The fixed not movable arrangement of case of transmission, such as pass through indirect or direct threaded connection.
Correspondingly, working piston does not have the component fixed relative to other positions, such as assembling element, air-operated control fill
The freedom degree set, and especially can not be axially with respect to its movement.Particularly advantageously, it arranges to working piston axial restraint
At other components of air-operated control device.That is, so, working piston also directly or indirectly with the case of transmission of speed changer
It is fixedly connected.Working piston is fixedly threadedly coupled with assembling element in an adequate manner.Assembling element again with transmission case
Body is permanently connected.
In addition, the advantageous modified embodiment of description the utility model.
Expediently, air-operated control device has for being fixed at power train, particularly at the case of transmission of power train
Assembling element.
Assembling element is configured to buck plate in an adequate manner and is advantageously permanently connected with working piston.Such as it can
It is connected through a screw thread and is attached.Assembling element is configured to dish type in an adequate manner.Particularly advantageously, guiding tube is in radial direction
Inside is arranged at assembling element and connects with being secured to, for example by compressing or welding.
Particularly advantageously, only working cylinder and working piston limit pressure chamber.In order to provide airtight pressure chamber, working cylinder
It is sealed relative to each other with working piston.Advantageously, moreover, other components are not arranged within pressure chamber.It can keep pressing as a result,
The dead space volume of power chamber is especially small.This leads to the quick response of air-operated control device again.
In preferred modified embodiment, working piston is fixed at assembling element, so that assembling element is at least partly
Ground closes or covers free space.
The assembling element for being configured to dish type in an adequate manner is especially used as the cover plate for free space and is used for
Fixed working piston.It is fixed at the other assemblies of power train, for example becomes in addition, assembling element can be realized air-operated control device
At fast device shell.Expediently, working piston, particularly free space is completely covered in assembling element, thus protect free space with
Anti- dirt penetrates into.
Advantageously, at least one is configured at assembling element for pressure medium to be conveyed to valve cell or from valve cell
In derived hole.Assembling element can also have multiple for conveying and exporting the hole of pressure medium.Advantageously, make assembling element or
Buck plate is sealed relative to working piston.In particular, buck plate or assembling element are in one for conveying and exporting pressure medium
It is sealed at a or multiple holes.
Such as it can be via hose, via the pneumatic channel in one or more shells or be also realized via a combination thereof
The pressure medium of valve cell conveys and export.
Particularly advantageously, valve cell is effectively connect via the pneumatic channel of working piston with pressure chamber.
Pneumatic channel is the hole being introduced into working piston or corresponding channel, for example, along working piston extension or
Person stretches within working piston.The pneumatic channel can for example be generated by one or more drilling.Alternatively, pneumatic channel
It can be introduced into working piston by milling.The combination of the method and other manufacturing methods is also feasible.
Pneumatic channel can be constructed at working piston, or can construct multiple pneumatic channels.Expediently, multiple valve cell cloth
It sets within the free space at air-operated control device.For example, using the valve cell for stuffing pressure chamber and for emptying pressure
The valve cell of power chamber.
General variant schemes is the valve cell using four in switching valve form, be can be opened and closed respectively.Pass through
It opens and closes, the release of these switching valves or closing have the through-flow portion for limiting cross section.Two switching valves in switching valve are set
It is set to for filling, and other two switching valve is arranged for emptying.Have for one in the switching valve of filling big
Diameter and another switching valve for filling there is its opposite smaller diameter.Switching valve for emptying is configured to phase
It is same or similar.In order to realize quick movement of the working cylinder relative to working piston, two valves are opened.If necessary to slower
Movement, such as to carry out the accurate adjustment of the position of air-operated control device, then switching has the switching valve of big flow or has
The switching valve of small flow.
Alternatively, it is configured with for the regulating valve of filling and the regulating valve for emptying, wherein the regulating valve has adjustable
Section, i.e. variable diameter, thus the conveying or export of adjustable pressure medium.
Preferably, two or more valve cells are disposed within free space.Advantageously, the also structure within free space
It makes to the valve cell other Pneumatic components supply compressed air and emptied.This may be, for example, speed changer brake, be arranged in
Within speed changer.For this purpose, may be configured with additional hole at assembling element and may be configured at working piston when necessary attached
The pneumatic channel added.
Moreover, it is proposed that valve cell is directly coupled at the pneumatic channel of working piston.
Valve cell is directly, closely landing connect with pneumatic channel.Other components, such as pneumatic hose are not needed.By
This is, it can be achieved that valve cell and pressure chamber distance as short as possible.As has already been discussed, it is consequently for filling or emptying pressure
The corresponding dead time of chamber is as small as possible.One or more valve cells are advantageously directly coupled at pneumatic channel, preferably
It is inserted at pneumatic channel.
In a kind of advantageous modified embodiment, pneumatic channel is configured to pass through the hole of working piston.
This hole is also referred to as through-Penetration portion, wherein in an adequate manner by drilling or also during manufacturing process, example
Such as it is introduced into working piston during casting technique.The direct through-Penetration portion provides as short as possible from valve cell to pressure chamber
Distance.Expediently, being configured with for each valve cell for filling or emptying pressure chamber in across working piston
The through-Penetration portion of itself of the form in hole.
In a kind of modified embodiment of substitution, air-operated control device has multiple valve cells and multiple pneumatic channels,
Wherein, valve cell is effectively connect by the network being made of pneumatic channel with pressure chamber.
The network of pneumatic channel provides the connection between the interface of the pressure chamber side of valve cell.The network via one or
Multiple pneumatic channels are connect with pressure chamber.It optionally, can be one for filling or emptying pressure chamber/multiple valve cells difference
Construct an own network being made of pneumatic channel or a common network being made of pneumatic channel.The gas of network
Dynamic channel suitably constructs at working piston or within working piston, without between valve cell and pressure chamber
Connection additional component, such as pneumatic hose.
In order to which pressure medium is conveyed and exported from pneumatic system to valve cell, working piston can have at least one pressure Jie
Matter conveys/export channel.This can for example be machined into working piston as pneumatic channel, particularly via drilling, milling
Or it is equally worked into working piston during casting technique.Alternatively, it is possible to use conveying/discharge hose, suitably
It may pass through the hole of assembling element.
Particularly advantageously, the section of pneumatic channel or notch terminated in pressure chamber be configured to nozzle shape or taper
's.
Advantageously, which directly terminates in pressure chamber.Expediently, the section is configured to conically expand towards pressure chamber
Greatly.The cross section of the section, particularly diameter monotonously become larger towards pressure chamber.It is the nozzle shape of end section or taper
Embodiment can be realized pressure medium and particularly advantageously be flowed into pressure chamber and neutralize to flow out from the pressure chamber.
It is further suggested, that working piston is configured to multi-piece type.This multi-piece type can be realized the simpler of working piston and
More accurately manufacture.
In a kind of particularly advantageous design variant scheme, the working piston of multi-piece type has the matrix for limiting free space
Airtightly seal the nappe of the pneumatic channel of matrix.
Matrix can be realized valve cell and economical space saving be disposed about at air-operated control device in pressure chamber.At matrix
It is configured with pneumatic channel.Pneumatic channel can be for example introduced in matrix by milling.Nappe and matrix are permanently connected simultaneously
And airtightly cover pneumatic channel.If it is necessary, being configured with one or more sealings between matrix and nappe, make gas
Dynamic channel is sealed against one another and seals relative to pressure chamber.Advantageously, nappe has at least one hole, provides in matrix
Effective connection between pneumatic channel and pressure chamber.Hole illustratively can be by running through cage structure simultaneously according to the embodiment above
And it is optionally also configured to nozzle shape or taper with preferably flowing in and out for pressure medium.
It is further recommended that reloading spring is radially constructed except pressure chamber or is radially constructed within pressure chamber.
Reloading spring is used for the abutting contact that air-operated control device, particularly release bearing pre-tighten at the diaphragm spring of clutch.
Reloading spring can be realized the pressure chamber without other components in the arrangement of pressure chamber radially outside or radially inside.This
Be advantageous because thus the dead space volume of pressure chamber can keep as small as possible, hereby it is achieved that air-operated control device quick and
Comfortable response.Reloading spring acts between working cylinder and working piston, wherein it respectively can either directly or indirectly cloth
It sets at working cylinder and working piston.Illustratively, reloading spring be arranged between sliding members and assembling element and with
Its abutting contact is established between working piston and working cylinder be indirectly connected with as a result,.
It is further suggested, that the valve cell being arranged within free space and another pneumatic structure device, particularly speed changer
Brake effectively connects.
Arrangement of the valve cell within air-operated control device especially saves space, and can be realized for different valve cells
Common conveying/export channel.Another pneumatic structure device may be, for example, speed changer brake, may be arranged at transmission case
Within body.Another constructional device does not construct at air-operated control device usually, but constructs in another component, such as speed changer
Place.At air-operated control unit, it is preferably configured with other pipelines, pneumatic channel or hose, corresponding valve cell and it are provided
Other pneumatic structure units connection.Optionally, it is possible to use above combination.
It is further suggested, that being fixed with holding element at working cylinder.
Holding element is suitably configured to holding plate, with disc-like shape.Holding element is permanently connected with working cylinder
And the axial movement relative to working piston is carried out together.At holding element, expediently, being fixedly arranged sensing
The component of device unit, such as the position transmitter of sensor unit.Pass through sensor electronics detecting location transmitter and work
Make the axial movement of cylinder.Expediently, arranging spring element between holding element and release bearing.The spring element especially with
The support section abutting contact of holding element, thus spring element in the axial direction relative to air-operated control device, particularly
Working cylinder pre-tightens release bearing.It can not lose at air-operated control device thereby, it is possible to realizing release bearing and automatic centering
Arrangement.
In addition, proposing a kind of air-operated control device for motor vehicles.Comprising: which working cylinder and working piston, described
Working cylinder and working piston limit pressure chamber, wherein the working cylinder can relative to the working piston axially movable,
In, dirt blocking unit, the dirt blocking unit is indirectly or directly fixed at the working piston and via solid
The swiping element and the working cylinder abutting contact being scheduled at the dirt blocking unit.
Air-operated control device has working cylinder and working piston, they limit pressure chamber.Expediently, pressure chamber only by
Working cylinder and working piston surround, wherein it is sealed relative to each other.In a kind of variant schemes of substitution, by working chamber,
Working piston and at least another component surround pressure chamber.Working piston, working cylinder and another component correspondingly seal, to provide gas
Close pressure chamber.Here, working cylinder is configured to be axially moved relative to working piston.
Particularly advantageously, working piston position is fixedly placed at air-operated control device, on the contrary, working cylinder is with can axis
Implement at air-operated control device to the mode of movement.Position is fixedly it is meant that working piston is fixedly placed on pneumatic behaviour
At vertical device, and it is configured to substantially immovable relative to the shell and other assemblies of power train.
Air-operated control device has dirt blocking unit, and it is living which is indirectly or directly fixed on work
At plug and via the swiping element and working cylinder abutting contact being fixed at dirt blocking unit.Working cylinder can be in the axial direction
On relative to dirt blocking unit move.Dirt blocking unit preferably surrounds working cylinder and working piston in radially outer, from
And optimally protect pressure chamber to prevent dirt infiltration.
It is that dirt blocking unit is advantageously configured to sleeve shaped and there is nappe and swiping element, swiping member
Part is preferably directly fixed at nappe.Nappe advantageously has above-mentioned sleeve-shaped, so that working cylinder and working piston
It is surrounded in large area, and be suitably made of plastics.Swiping element is advantageously made of felt.Swiping element for example can cloth
Set circular rings in swiping element around slot in.
Swiping element slides on working cylinder and wipes the dirt particle being gathered on working cylinder, so that dirt can not
It penetrates into the inner cavity surrounded by dirt blocking unit.
Advantageously, nappe is cither indirectly or directly fixed at working piston.The fixation can for example be formed by bite, institute
Bite is stated illustratively to act in the hole of assembling element and sting at the assembling element.
Swiping element suitably with fixed part or corresponding fixing element (such as bite) it is axially opposed be arranged in covering
At body.Swiping element is equally advantageous arranged in the nappe end for being axially directed to remove direction.Swiping element is advantageously
It is arranged at nappe in inner radial.
In a kind of special modified embodiment, dirt blocking unit or nappe have axially extending, dirt resistance
Keep off the axially extending nearly equivalent to the axially extending of working cylinder of unit or nappe.That is, nappe is approximate in the axial direction
Axially extending as working cylinder is so grown, and is preferably somewhat shorter.
Detailed description of the invention
Air-operated control device illustratively is explained in detail according to multiple attached drawings below.Wherein:
Fig. 1 shows the air-operated control device with the fixed working piston in position with sectional elevation；
Fig. 2 shows the air-operated control device in Fig. 1 with front isometric view；
Fig. 3 shows the air-operated control device in Fig. 1 with stereo rearview；
Fig. 4 shows the perspective view of the rear side of the working piston with multiple valve cells；
Fig. 5 shows the schematic diagram of multi-piece type working piston with sectional elevation.
Specific embodiment
Fig. 1 shows air-operated control device 10 with sectional elevation.It is also shown in figure 2 and figure 3 with solid identical
Air-operated control device 10.Air-operated control device 10 is arranged for being installed in motor vehicles, particularly in its power train.
Air-operated control device 10 has working piston 12 and working cylinder 14.Working piston 12 and working cylinder 14 are configured to
It can be axially with respect to moving each other.Working piston 12 and working cylinder 14 define pressure chamber 16 and by means of sealing elements 18
Airtightly close the pressure chamber 16.
In order to manipulate unshowned clutch, using pressure medium, in this pneumatic medium, particularly air stuffing pressure chamber
16.Working cylinder 14 manipulates unshowned diaphragm axially movable and via release bearing 20 relative to working piston 12 as a result,
Spring.
The working piston 12 that air-operated control device 10 has position fixed.It means that working piston fixedly with assembly
Element 22 is connected, and can not move relative to the shell for air-operated control device air-operated control device 10.Pass through bolt
24 provide fixed connection.Assembling element 22 is configured to buck plate 22 and particularly for air-operated control device 10 is fixed on biography
At the dynamic other assemblies for being, such as case of transmission.
Working cylinder 14 is fixedly connected in inner radial with sliding members 26, such as by compressing and/or welding.Sliding members
26 do common axial movement with working cylinder 14 together and slide on guiding tube 28.The receiving of sliding members 26 is introduced into separation
It power in bearing and is channeled in guiding tube.A swiping element 30 and two slidings are constructed at sliding members 26
Ring 32.
Guiding tube 28 is fixedly connected itself with assembling element 22.For this purpose, assembling element 22 is at its radially inner circumference towards axis
It is bent to direction to form fixing section 22a.Fixing section 22a and guiding tube 28 are for example mutually compressed and/or are welded to each other.
In particular, the connecting structure between assembling element and guiding tube is at least relative to dirt particle sealing.
Working cylinder 14, sliding members 26, guiding tube 28 and assembling element 22 form cavity 34.Within the cavity 34
Arrange spring element 36.Spring element 36 is used as the reloading spring 36 for air-operated control device 10.
Working cylinder 14 and release bearing 20 are axial relative to the unshowned diaphragm spring of clutch by spring element 36
It pre-tightens.Spring element 36 radially construct within mask work chamber 14 and thus also radially construct pressure chamber 16 it
It is interior, i.e. especially not in pressure chamber 16.Thus the dead space volume in pressure chamber 16 is reduced to minimum, is achieved in gas
It moves the quick of manipulation device and comfortably removes.In addition, especially because swiping element 30, the spring element being arranged in cavity 34
Part 36 is protected particularly well to prevent dirt infiltration.
In addition, being configured with holding element 38 at air-operated control device 10.Holding element 38 is fixedly connected with working cylinder 14
And therewith do common axial movement.Here, holding element 38 be configured to dish type, be for example configured to plate, and
Substantially with the shape of rotational symmetry.
At the section of its inner radial, holding plate 38 has support section 38a.Spring element 40 acts on the Support
At section 38a, which applies axial pretightening to release bearing 20 towards the direction of working cylinder 14, so that release bearing 20 is not
It is arranged at air-operated control device while ground and automatic centering can be lost.
Holding element 38a has the variant part for being used to support spring element 40 in the end of its inner radial.Spring element
Part 40 is supported at support section 38a in the axial direction and causes to be applied to separation shaft on the direction towards working cylinder 14
Hold the axial spring forces on 20 radially outer bearer ring.Thus release bearing can move in radial directions, automatic to carry out
Centering, but despite of that being fixed in a manner of it can not lose.
In addition, holding element 38 has fixing section 38b at its radially outer end, it is used to fix sensor unit 44
Position transmitter 42.Position transmitter 42 does common movement with working cylinder 14 together, wherein the biography of sensor unit 44
The position of 46 detecting location transmitter 42 of sensor electronic device and movement.
In addition, air-operated control device 10 has dirt blocking unit 48 comprising nappe 50 and swiping element 52.
Nappe 50 is made of plastics and has sleeve-shaped, wherein nappe 50 is generally radially externally in the axial direction
Extend along working cylinder 14.Nappe 50 is that working cylinder 14 and working piston 12 shield dirt and penetrate into as a result,.
Dirt blocking unit 48 is fixed at assembling element 22 by the nappe 50 with multiple bite 50a.Nappe
50 can also illustratively be fixedly connected via another fixing piece with assembling element 22.Such as can also relative to working piston 12 into
Row is fixed.In particular, dirt blocking unit 48 is directly or indirectly fixedly connected with working piston 12.
Working cylinder 14 is correspondingly moved relative to dirt blocking unit 48 and its swiping element 52 in the axial direction, swiping
Element is in radially outer and 14 abutting contact of working cylinder.The swiping element 52 is for example made of and is rubbed off the dirt felt, dirt
On the radially-outer surface of working piston 12.In particular, swiping element is circularly arranged circumferentially around in the slot of nappe 50,
Especially it is arranged at nappe 50 in inner radial.
Dirt blocking unit 48, particularly its nappe 50 are in the axial direction in an adequate manner at least in working cylinder 12
Axial reciprocating stroke on extend.By the arrangement of dirt blocking unit 48 and sealing element 18, realize particularly advantageous
Dirt shielding.In particular, the dirt entered has to pass through from swiping element 52 up to assembling element 22 and and then again
The very long distance for arriving sealing element 18 in the opposite direction, can be penetrated into stroke chamber with final.This structure makes dirt
It penetrates into pressure chamber and obviously becomes difficult and generate higher service life.
Dirt blocking unit 48, particularly nappe 50 and swiping element 52 are configured to rotational symmetry.In Fig. 2 and Fig. 3
In can be seen that, bite 50a is distributed substantially uniformly through in side Zhou Chu.
The fixed working piston 12 in position has radial segment 12a and two section 12b and 12c axially stretched.Axis
It is diametrically disposed at except axial section 12c to section 12b.Radial segment 12a and axial section 12b or 12c strut to be formed certainly
By space 54, which passes through quadrangle, particularly rectangle description in cross-section.
In addition, free space 54 is also by cross section is C-shaped or the working piston 12 of U-shaped surrounds.Radial segment 12a with
And axial section 12b and axial section 12c correspondingly surround free space 54.It is covered in addition, free space 54 is assembled element 22
Lid.
Free space 54 passes through the section of working piston 12 and is surrounded by assembling element 22.The cloth within free space 54
It is equipped with multiple valve cells 56.It is shown in FIG. 4 from the perspective view seen below to working piston, valve cell is furthermore also shown
56.In free space, valve cell 56 is disposed adjacently to one another.However it is also contemplated that any other arrangement possibilities, such as
Star-shaped or equally distributed arrangement.
The arrangement is especially the pressure medium in channel form for including to be arranged at working piston 12 and flows into and flow
Portion 58 out.Pressure medium via pressure medium flow into and outflow portion 58 and via pneumatic channel 60 be conveyed to valve cell 56 or
Person guides open from there.Should not illustrate again in this regard pressure medium it is specific flowing and each single pneumatic channel 60 with
The embodiment or connection of valve cell 56.However it should be mentioned that pneumatic channel 60 is introduced into working piston 12.For example, gas
Dynamic channel 60 can be introduced by drilling or milling.
In the modified embodiment according to Fig. 1, working piston 12 has multiple pneumatic channels 60, wherein this pneumatic
Channel 60 is configured to axially guide across the hole of working piston 12.This is realized to the greatest extent may be used between valve cell 56 and pressure chamber 16
The short distance of energy, to realize direct response and dead time as small as possible.In addition, being arranged in by valve cell 56
Within some free spaces 54, structure space is saved at other positions of power train.
Here, constructing the pneumatic channel 60 for passing axially through working piston 12 of itself for each valve cell 56.?
In other modified embodiments explained in the general part of description, valve cell passes through the network phase that is made of pneumatic channel 60
It connects, so that such as common notch 66 for leading to pressure chamber of only one is enough.If it is necessary, the valve for filling
Unit 56 and valve cell 56 for emptying pressure chamber 16 are respectively provided at pneumatic channel 60 network of itself.According to Fig. 1,
Pneumatic channel 60 is also notch 66 simultaneously.
The possible notch 66 of pneumatic channel 60 and the network being made of pneumatic channel 60 has the end of pressure chamber side
Section 66a, the end section or can expand in a manner of nozzle shape or also may be configured to taper.End section 66a's
Diameter expands towards pressure chamber.Hereby it is achieved that preferably pressure medium flows into and flows out performance.
In another variant schemes equally illustrated in general description section, working piston 12 may be configured to more
Part formula.This is exemplarily illustrated in Fig. 5.The working piston 12 of multi-piece type includes matrix 62 and nappe 64.Free space
54 are strutted by matrix 62.Here, valve cell 56 also is disposed within free space.
Here, valve cell is also connected with pneumatic channel 60.Pneumatic channel 60 is machined into matrix 62, illustratively
It is shown in broken lines.Pneumatic channel 60 forms the one or more networks for being used for different valve cells 56.
Nappe 64 is fixedly connected with matrix 62 and covers pneumatic channel 60.In particular, nappe 64 airtightly covers
Pneumatic channel 60.This can for example be realized by means of unshowned sealing, but can be realized by corresponding connection method,
Such as by air seal weld matrix 62 and nappe 64.Matrix 62 and nappe 64 for example can also be mutually threadedly coupled.
Advantageously, pneumatic channel 60 or the network being made of pneumatic channel 60 can seal relative to each other and relative to pressure chamber 16.
Nappe 64 with notch 66 or alternatively has multiple notches, provide pneumatic channel and pressure chamber 16 it
Between connection.According to foregoing embodiments, notch 66 may be configured to nozzle shape or taper.
Reference signs list
10 air-operated control devices
12 working pistons
12a radial segment
12b, 12c axial section
14 working cylinders
16 pressure chambers
18 sealing elements
20 release bearings
22 assembling elements
22a fixing section
The hole 22b
24 bolts
26 sliding members
28 guiding tubes
30 swiping elements
32 slip rings
34 cavitys
36 spring elements
38 holding elements
38a supports section
38b fixing section
40 spring elements
42 position transmitters
44 sensor units
46 sensor electronics
48 dirt blocking units
50 nappes
50a bite
52 swiping elements
54 free spaces
56 valve cells
58 pressure mediums flow into and outflow portion
60 pneumatic channels
62 matrixes
64 nappes
66 notches
The end section of 66a pressure chamber side.
Claims (10)
1. a kind of air-operated control device (10) for motor vehicles, which is characterized in that the air-operated control device (10) includes:
Working cylinder (14) and working piston (12), the working cylinder and working piston jointly limit pressure chamber (16),
Wherein, at least part of the working piston (12) struts to form free space (54) or surround freely in cross-section
Space (54),
Wherein, it is disposed within the free space (54) valve cell (56).
2. air-operated control device (10) according to claim 1, which is characterized in that the air-operated control device (10) has
Assembling element (22) for being fixed at power train, particularly at case of transmission.
3. air-operated control device (10) according to claim 2, which is characterized in that the working piston (12) is fixed on institute
It states at assembling element (22), so that the free space (54) are at least partly closed/covered to the assembling element (22).
4. air-operated control device (10) according to any one of claim 1 to 3, which is characterized in that the valve cell
(56) it is effectively connect via the pneumatic channel (60) of the working piston (12) with the pressure chamber (16).
5. air-operated control device (10) according to claim 4, which is characterized in that the valve cell (56) is directly coupled to
At the pneumatic channel (60) of the working piston (12).
6. air-operated control device (10) according to claim 4, which is characterized in that the pneumatic channel (60) is across institute
State the hole of working piston (12).
7. air-operated control device (10) according to any one of claim 1 to 3, which is characterized in that the air-operated control
Device (10) has multiple valve cells (56) and multiple pneumatic channels (60), wherein the valve cell (56) passes through by pneumatically leading to
The network of road (60) composition is effectively connect with the pressure chamber (16).
8. air-operated control device (10) according to any one of claim 1 to 3, which is characterized in that the working piston
It (12) is multi-piece type.
9. air-operated control device (10) according to claim 8, which is characterized in that the working piston (12) of the multi-piece type
With the matrix (62) for limiting the free space (54) and airtightly pneumatic channel (60) of sealing described matrix (62) are covered
Lid (64).
10. a kind of air-operated control device (10) for motor vehicles, which is characterized in that air-operated control device (10) packet
It includes:
Working cylinder (14) and working piston (12), the working cylinder and working piston limit pressure chamber (16),
Wherein, the working cylinder (14) can relative to the working piston (12) axially movable, wherein
Dirt blocking unit (48), the dirt blocking unit are indirectly or directly fixed at the working piston (12) simultaneously
And via the swiping element (52) and the working cylinder (14) abutting contact being fixed at the dirt blocking unit (48).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017214547.1A DE102017214547A1 (en) | 2017-08-21 | 2017-08-21 | Pneumatic actuating device for a motor vehicle |
| DE102017214547.1 | 2017-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209244969U true CN209244969U (en) | 2019-08-13 |
Family
ID=65235184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821329121.0U Active CN209244969U (en) | 2017-08-21 | 2018-08-17 | Air-operated control device for motor vehicles |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209244969U (en) |
| DE (1) | DE102017214547A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019105968B4 (en) * | 2019-03-08 | 2020-10-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pressure medium operated clutch actuator |
| DE102021200722A1 (en) | 2021-01-27 | 2022-07-28 | Zf Friedrichshafen Ag | Central release mechanism for a friction clutch in a motor vehicle |
| DE102022209485A1 (en) | 2022-09-12 | 2024-03-14 | Zf Friedrichshafen Ag | Central releaser |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1155348B (en) * | 1958-11-13 | 1963-10-03 | Tatra Np | Pneumatic actuation device for switching a step change gear, especially for motor vehicles |
| FR2082870A5 (en) * | 1970-03-31 | 1971-12-10 | Ferodo Sa | |
| DE19946678A1 (en) * | 1999-09-29 | 2001-04-19 | Knorr Bremse Systeme | Hydropneumatic booster, in particular clutch booster and clutch system based thereon, and method suitable therefor |
| DE10046323B4 (en) * | 2000-09-19 | 2004-02-12 | Siemens Ag | Hydraulic backlash compensation system |
| DE10153159B4 (en) * | 2001-10-27 | 2014-12-04 | Werner Drobek | Valve |
| EP1994297A1 (en) * | 2006-03-06 | 2008-11-26 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Device for actuating a clutch |
-
2017
- 2017-08-21 DE DE102017214547.1A patent/DE102017214547A1/en active Pending
-
2018
- 2018-08-17 CN CN201821329121.0U patent/CN209244969U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017214547A1 (en) | 2019-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209244969U (en) | Air-operated control device for motor vehicles | |
| US4960188A (en) | Single-tube vibration damper of variable damping force | |
| US8146897B2 (en) | Self-pumping hydropneumatic spring strut with internal level control | |
| US6283259B1 (en) | Hydraulic shock absorber | |
| US7997392B2 (en) | Vibration damper | |
| US4899853A (en) | Hydraulic shock-absorber and vibration damper with an inner tube | |
| JP6741298B2 (en) | Adjustable spring support | |
| GB2159604A (en) | An adjustable hydraulic damper | |
| US20090120749A1 (en) | Vibration damper and method for the production of a three-pipe system for a vibration damper | |
| US3537357A (en) | Hydropneumatic accumulator | |
| US20110198520A1 (en) | Electrically controlled valve arrangement for a shock absorber | |
| CN107636337A (en) | Damping element for hydraulic line | |
| CN109424660A (en) | Slave cylinder system with the annular piston unit prejudicially arranged | |
| CN101294610A (en) | Vibration damper with amplitude-selective damping force | |
| CN107000717A (en) | Valve module, the hydraulic block for this vehicle brake apparatus and the vehicle brake apparatus with this hydraulic block for the pressure change damper of the hydraulic vehicle brake equipment with brake-force control function | |
| US20080115663A1 (en) | Vibration damper with amplitude-selective damping force | |
| CN105927690B (en) | A kind of dismountable double-cylinder type hydraulic buffer | |
| GB2141518A (en) | Elastomeric spring stressed by liquid | |
| JP2011208783A (en) | Hydraulic shock absorber | |
| US20200173514A1 (en) | Vibration damper and vehicle | |
| US4681992A (en) | Cushioned clamp cylinder with proximity switches | |
| CN208918958U (en) | Single sided entry double-acting cylinder | |
| GB2300893A (en) | Fluid cylinder; delivering fluid and/or electric signals | |
| WO1993012360A1 (en) | A buffer | |
| JPH0422113Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |