WO2017211344A1 - Druckzylinder mit schmutzschutz am flansch - Google Patents
Druckzylinder mit schmutzschutz am flansch Download PDFInfo
- Publication number
- WO2017211344A1 WO2017211344A1 PCT/DE2017/100416 DE2017100416W WO2017211344A1 WO 2017211344 A1 WO2017211344 A1 WO 2017211344A1 DE 2017100416 W DE2017100416 W DE 2017100416W WO 2017211344 A1 WO2017211344 A1 WO 2017211344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flange
- housing
- printing cylinder
- dirt protection
- window
- 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.)
- Ceased
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
-
- 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
- F16D25/12—Details not specific to one of the before-mentioned types
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
-
- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Definitions
- the invention relates to a pressure cylinder (preferably designed as a slave cylinder) for a clutch actuation system of a motor vehicle, such as a truck, car, bus or agricultural utility vehicle, comprising a housing, a piston movably received in this housing along a displacement axis and a housing protruding bellows enclosing the longitudinal region of the piston, wherein on the housing, a flange is provided which has a plurality of fastener receiving holes and is configured with a running in the radial direction of the piston displacement axis window.
- the invention also relates to a coupling for a drive train of a motor vehicle with an actuating system / clutch actuation system having the impression cylinder.
- a slave cylinder with a housing arranged concentrically about a transmission input shaft and an axially movable annular piston is disclosed.
- the piston is operatively connected to a release bearing and the release bearing receives an axial preload by means of an energy accumulator supported on the housing and enclosing the piston.
- the energy storage is surrounded by a protective bellows, which is received with its one end on the housing and with its release bearing end of a connected to the release bearing mounting ring.
- printing cylinders are already known in principle, which have a housing and a flange attached thereto.
- the windows introduced in the flange are usually insufficiently sealed.
- the windows provided for the intervention of assembly tools and / or for fastening certain elements form structures in which dirt accumulates increasingly during operation, which may eventually lead to contamination of the piston. It is therefore the object of the present invention to overcome these known from the prior art disadvantages and to further reduce the risk of contamination of the printing cylinder, in particular the space within the bellows. This is inventively achieved in that the flange is covered with a dirt protection that the window is sealed to an environment of the printing cylinder.
- the dirt protection hood-like / cap-like / lid-like shape it is particularly firmly attached to the flange during operation.
- the dirt protection continuously covers the flange radially from outside, preferably along the entire circumference. As a result, the flange is protected over a particularly large area from contamination.
- the pollution control in its production is particularly cost.
- the dirt protection is further suitably secured to the flange form-fitting, whereby the assembly is further simplified.
- the dirt protection is also preferably removable again attached to the flange.
- a latching nose is formed on the soil protection, which is locked in the window.
- the structure door of the window can be used directly as a support structure of the soil protection and the manufacturing cost is further reduced.
- the flange is further preferably formed in one piece with the housing, whereby the complexity of the housing is lowered further.
- the assembly can be further simplified.
- the flange is attached via a bayonet connection to the housing.
- a migrainebNeillbare attachment of the flange is implemented on the housing, so that in turn the assembly of the printing cylinder is simplified to the respective vehicle frame fixed component of the motor vehicle.
- the bellows is fastened by means of a retaining ring on the part of the flange, wherein the retaining ring of the dirt protection with (radially from the outside) is covered. This further improves the sealing of the impression cylinder to the environment.
- the invention relates to a coupling for a drive train of a motor vehicle with a pressure cylinder according to at least one of the previously described embodiments having actuating system.
- a clutch is particularly durable operable.
- a pressure cylinder is thus implemented, which is preferably designed as a Semiholiczylinder / slave cylinder.
- the printing cylinder has a dirt protection on the flange. The dirt protection must be fitted over the flange on the semi-cylinder (preferably rubber) in order to cover the window in the flange.
- FIG. 1 is a longitudinal sectional view of a printing cylinder according to the invention in the region of a flange on a housing of the printing cylinder, wherein a piston for clarity is not fully shown,
- FIG. 2 shows a detail of the region of the flange attached to the housing, marked "II" in FIG. 1, FIG.
- FIG. 3 shows a perspective front view of the printing cylinder according to FIG. 1 together with the piston, a dirt protection fastened to the flange being particularly well recognizable, FIG.
- FIG. 4 shows a perspective front view of the printing cylinder, similar to FIG. 3, with the dirt protection now removed from the flange, and several holes introduced in the flange in the form of windows and undercuts,
- Fig. 5 is a perspective view of the in Figs. 1 to 4 used
- Fig. 6 is a perspective view of the flange of FIG. 5 of its flange facing in the attached state inside.
- an inventive pressure cylinder 1 according to a preferred embodiment in its construction can be seen particularly well.
- the printing cylinder 1 is designed in this embodiment as a slave cylinder, namely a Semi reviewingzylinder. In other embodiments, however, it is also possible the printing cylinder to design as master cylinder.
- the printing cylinder 1 is in an operation part of a clutch actuation system of a motor vehicle.
- the clutch confirmation system is furthermore part of a clutch, with the clutch and clutch confirmation system not being shown here for the sake of clarity.
- the pressure cylinder 1 thus serves in operation for forwarding a pressure to an actuating element which engages or disengages the clutch.
- the printing cylinder 1 has a housing 2.
- the housing 2 forms a cylindrical receiving space / receiving area 14, in which in operation a piston 4, which is clearly visible in Fig. 3, is guided displaceably.
- the piston 4 is displaceably guided along the illustrated displacement axis 3 (FIG. 1), this displacement axis 3 corresponding to the longitudinal axis of the receiving region 14.
- the piston 4 protrudes from an opening 16 of the housing 2 with a longitudinal region 5 whose length depends on the relative displacement position relative to the housing 2.
- the opening is arranged at an axial end region 15 of the housing 2 with respect to the displacement axis / longitudinal axis 3.
- first end side of the piston 4 acts in operation with the actuator of the clutch directly or indirectly together.
- first end side axially opposite, the second end side of the piston 4 is guided over its entire displacement path away in the receiving area 14 and forms with the housing 2 from a fluidic pressure chamber.
- the pressure chamber which is not shown here for clarity, is designed as a hydraulic pressure chamber and thus the pressure cylinder also referred to as a hydraulic pressure cylinder.
- a bellows 6 which is configured annularly, radially from the outside.
- the bellows 6 extends coaxially with the piston 4. With a first axial end 17, the bellows 6 is fastened to a flange 7 of the housing 2.
- the bellows 6 forms at its first end 17 a mounting flange 18 integral / scherinturban.
- This mounting flange 18 is fixed in the operation of the printing cylinder 1 by means of a retaining ring 13 on the flange 7.
- the retaining ring 13 is detachably attached to a radially inner side 19 of the flange 7 again.
- the retaining ring 13 is positively secured to this inner side 19 of the flange 7. In particular, the retaining ring 13 is positively locked in a window 9 described in more detail below.
- the bellows 6 is in turn fastened to the piston 4 with a second end 27 opposite the first end 17.
- the design of the flange 7 can also be seen particularly well in Fig. 4.
- the flange 7 extends in an extension plane formed perpendicular to the displacement axis 3.
- the flange 7 is overall disc-shaped and in this embodiment, material integral with the housing 2.
- the flange 7 has at two in the circumferential direction with respect to the longitudinal axis 3 offset by about 180 ° Befest Trentsmittelability- holes 8.
- the flange 7 On its radial outer side, the flange 7 has a plurality of holes. A window 9 is formed as a continuous hole and penetrates the flange 7 in the radial direction. The window serves as a fastening contour of the retaining ring 13. Further holes in the flange are designed as undercuts 23 As in connection with FIGS. 1 and 3 recognizable, the flange 7 according to the invention surrounded by a dirt protection 10. The dirt protection 10 is designed like a hood. The shape of the soil protection 10 is also shown in FIGS. 5 and 6 to recognize in detail. With a plate-like base portion 20 of the soil protection 10 is in the fastened state at an axial end face of the flange 7 to surface.
- this base portion 20 is recessed. Also, the base portion 20 is configured and dimensioned with a central through hole 21 for passing through the piston 4 and the bellows 6 penetrating it.
- a side wall 22 which completely revolves along the circumference / in the circumferential direction of the longitudinal axis 3 extends perpendicularly away from the base section 20.
- This side wall 22 is matched to the axial dimension / width of the flange 7. The side wall 22 extends in the axial direction so far that it completely covers the window 9 and the undercuts 23 in the flange 7.
- the dirt protection 10 is configured with an inner wall 24 which extends in the axial direction from the base section 20, in the same direction as the side wall 22.
- the inner wall 24 is closed with a radially inwardly extending support surface 25. With this support surface 25 of the dirt protection 10 is in operation, as well in Fig. 1 is clearly visible, axially on the retaining ring 13 at.
- a plurality, namely two, locking lugs 12 are formed on an inner side 26 of the side wall 22 which bears against the flange 7 in the fastened state.
- the respective latching lug 12 protrudes into one of the undercuts 23 and is secured in position in the latter in the axial direction.
- the soil protection 10 is made of one piece.
- the soil protection 10 is preferably made of a plastic material, namely a rubber material.
- a single part in the form of a cover (dirt protection 10) is thus arranged on the pressure cylinder 1 on the surface of the housing 2 of the printing cylinder 1.
- This cover 10 may be made of a rubber that allows to form an integral / stoffeinteiliges component.
- Reference character list Printing cylinder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112017002875.2T DE112017002875B4 (de) | 2016-06-10 | 2017-05-17 | Druckzylinder mit Schmutzschutz am Flansch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016210279.6 | 2016-06-10 | ||
| DE102016210279.6A DE102016210279A1 (de) | 2016-06-10 | 2016-06-10 | Druckzylinder mit Schmutzschutz am Flansch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017211344A1 true WO2017211344A1 (de) | 2017-12-14 |
Family
ID=59021205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2017/100416 Ceased WO2017211344A1 (de) | 2016-06-10 | 2017-05-17 | Druckzylinder mit schmutzschutz am flansch |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102016210279A1 (de) |
| WO (1) | WO2017211344A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008053363A1 (de) * | 2007-11-15 | 2009-05-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulikzylinder |
| DE102011108770A1 (de) * | 2011-07-28 | 2013-01-31 | Schaeffler Technologies AG & Co. KG | Anordnung eines Geberzylinders an einer Fahrzeugwand |
| DE102012221225A1 (de) * | 2011-12-14 | 2013-06-20 | Schaeffler Technologies AG & Co. KG | Kolbeneinheit für einen hydraulischen Zentralrücker |
| DE102013204126A1 (de) | 2012-03-28 | 2013-10-02 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| DE102015212479A1 (de) * | 2014-07-03 | 2016-01-07 | Schaeffler Technologies AG & Co. KG | Hydraulische Zylindereinheit mit flexibler Anbindung |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7202426B2 (en) * | 2005-05-02 | 2007-04-10 | Eaton Corporation | Master cylinder position switch |
| DE102012214225A1 (de) * | 2011-08-31 | 2013-02-28 | Schaeffler Technologies AG & Co. KG | Haltevorrichtung für Kolbenstange |
-
2016
- 2016-06-10 DE DE102016210279.6A patent/DE102016210279A1/de not_active Withdrawn
-
2017
- 2017-05-17 DE DE112017002875.2T patent/DE112017002875B4/de active Active
- 2017-05-17 WO PCT/DE2017/100416 patent/WO2017211344A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008053363A1 (de) * | 2007-11-15 | 2009-05-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulikzylinder |
| DE102011108770A1 (de) * | 2011-07-28 | 2013-01-31 | Schaeffler Technologies AG & Co. KG | Anordnung eines Geberzylinders an einer Fahrzeugwand |
| DE102012221225A1 (de) * | 2011-12-14 | 2013-06-20 | Schaeffler Technologies AG & Co. KG | Kolbeneinheit für einen hydraulischen Zentralrücker |
| DE102013204126A1 (de) | 2012-03-28 | 2013-10-02 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| DE102015212479A1 (de) * | 2014-07-03 | 2016-01-07 | Schaeffler Technologies AG & Co. KG | Hydraulische Zylindereinheit mit flexibler Anbindung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112017002875A5 (de) | 2019-03-07 |
| DE112017002875B4 (de) | 2025-09-18 |
| DE102016210279A1 (de) | 2017-12-14 |
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