CN104685270B - Sealing device - Google Patents
Sealing device Download PDFInfo
- Publication number
- CN104685270B CN104685270B CN201380047290.9A CN201380047290A CN104685270B CN 104685270 B CN104685270 B CN 104685270B CN 201380047290 A CN201380047290 A CN 201380047290A CN 104685270 B CN104685270 B CN 104685270B
- Authority
- CN
- China
- Prior art keywords
- sealing
- piston
- region
- holding element
- protuberance
- 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
- 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
- F15B15/1452—Piston sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/236—Piston sealing arrangements
-
- 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
- F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
-
- 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
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/322—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction perpendicular to the surfaces
-
- 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
- F16J15/00—Sealings
- F16J15/56—Other sealings for reciprocating rods
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/08—Seals, e.g. piston seals
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The present invention relates to a kind of sealing device (50) for piston-cylinder units (51), the piston-cylinder units have cylinder (53) and in the cylinder can axially-movable piston (52), the sealing device has the protuberance (54) for accommodating the annular of potted component (57), sealing lip (59) that the potted component is substantially L-shaped or v shape and that there is motion seal lip (60) and the axially extending static state extended along radial direction, it is provided with sealing holding element (62), the position that the sealing holding element is used for potted component (57) is fixed.
Description
Technical field
The present invention relates to a kind of sealing device for being particularly useful for piston-cylinder units, the piston-cylinder units are particularly useful for motor-driven
Vehicle.
Background technology
Sealing device used in piston-cylinder units with potted component, wherein potted component can be arranged on can in cylinder
On the piston of displacement.Especially, when piston is quickly returned can piston on the pressure side on produce negative pressure so that potted component
Leakage is lifted and produces by means of sealing lip from wall portion to be sealed.
Content of the invention
Therefore it is an object of the present invention to provide a kind of sealing device, the sealing device is simply constructed but is allowed
Sealing.
The purpose is realized by a kind of sealing device for piston-cylinder units.
One embodiment of the present of invention proposes a kind of sealing device for piston-cylinder units, and the piston-cylinder units have
Cylinder and the piston being axially movable in cylinder, with the protuberance for accommodating the annular of potted component, the potted component base
In sheet be L-shaped or v shape and there is the motion seal lip extended along radial direction and axially extending quiet
The sealing lip of state, it is characterised in that be provided with sealing holding element, the position that the sealing holding element is used for potted component are solid
Fixed.Even if sealing holding element is predetermined for making potted component when there is negative pressure or being also maintained at which in tilting of the piston
In position and guarantee the sealing of piston-cylinder units.
Here advantageously, seals holding element and has the region for axially projecting, and the region is outside in footpath
Portion overlaps the sealing lip and adjacent with motion seal lip of static state at least in part.Thus, motion seal lip is in its freedom of motion
It is restricted in terms of degree and arbitrarily can not bends far from wall portion, motion seal lip is abutted in the wall portion.Static
Sealing lip be also maintained in its position and only slightly can drop out from its normal position.Thus potted component will not be appointed
Drop out to meaning and piston-cylinder units keep sealing.
Purpose is also complied with, the region for axially projecting is the region of annular.Thus, it is possible to guarantee, seal
Keep fixing along its ring week.
Purpose is also complied with, the protuberance of the annular of piston has hollow receiving portion, and described accommodation section is axially
Direction extends, and wherein sealing holding element has the protuberance of cylindricality, and the protuberance is joined in hollow receiving portion.Thus
The position that can realize sealing holding element is fixed.
Also comply with purpose, sealing holding element is screwed, clamps by means of the protuberance of its cylindricality, bonding or with which
Its mode shape-ordinatedly or material fit be connected in the hollow receiving portion of piston.Even if thus returning fortune in piston
The improved position that can also realize sealing when dynamic holding element is fixed.
In addition meet purpose, seal the region that holding element has the dish type for extending in a radial direction, the dish type
Region make radially outer axially project region be connected with the protuberance of the cylindricality of inner radial.Thus, it is possible to
Simple structure is enough realized, because the area for axially projecting that the protuberance of inner radial can be arranged with radially outer
Domain single type ground is constituted.Advantageously, the component is molded by plastics single type.
It is particularly advantageous that energy storage device is being supported in sealing holding element on the side of piston.The energy
Holder is used as the preloading spring for pretension piston.Because sealing holding element is supported on piston, the element
Can be used in supporting energy storage device so as to have two functions concurrently.
Purpose being also complied with, holding element being sealed with axially projecting lip on the side of piston, energy is stored up
Storage is supported on the lip along radial direction.By means of the lip, energy storage device is preferably able in sealing holding element
Upper centering.
Description of the drawings
Next the present invention is elaborated with reference to corresponding accompanying drawing according to preferred embodiment.It is shown in which：
Fig. 1 illustrates the schematic diagram according to the potted component in the sealing device of prior art,
Fig. 2 illustrates the schematic diagram according to the potted component in the sealing device of the present invention, and
Fig. 3 illustrates the view of piston-cylinder units.
Specific embodiment
Fig. 1 illustrates the sealing device 1 of the piston-cylinder units for being particularly useful for motor vehicles, and wherein potted component 2 is arranged on work
On the protuberance 3 of the piston of plug cylinder unit, wherein static sealing lip 4 is supported on protuberance 3 in inner radial and moves
Sealing lip 5 is slidably abutted in the wall portion 6 of cylinder.Seal is maintained on protuberance 3 by holding element 7.
As seen in Figure 1, when there is negative pressure in region 8, motion seal lip 5 is lifted simultaneously from the wall portion 6 of cylinder
And produce blow-by.
Fig. 2 illustrates the sealing device 10 with potted component 11, and the potted component is arranged on the work of piston-cylinder units 13
On the protuberance 12 of plug.Potted component 11 is supported on the protuberance of piston 15 by means of its static sealing lip 14 in inner radial
On 12, the motion seal lip 16 of wherein potted component is supported on the wall 17 of cylinder 18 in radially outer.Due to having axially
The sealing holding element 19 in the region 20 that direction extends is prevented from motion seal lip 16 to be present under negative pressure condition in region 21
Also lift from the wall portion 17 of cylinder, wherein described region 20 radially outer overlap static sealing lip 14 and substantially with fortune
Dynamic sealing lip 16 is opposite.Even if the device according to Fig. 2 exists negative thus in extreme ruuning situation, for example in pressure chamber
Blow-by is avoided during pressure, the negative pressure for example can be produced when piston is relatively quickly returned.
This is externally provided with seal carrier 9,22 in fig. 1 and 2, and the seal carrier carries potted component and equally arranges
On the protuberance of piston.There is potted component 2,11 under negative pressure condition in region 8 or 21 to be sucked and from seal carrier
9th, lift at 22.However sealing lip is avoided from the opposite region that reclines by sealing holding element 19 according to the present invention
Lift.
Fig. 3 illustrates one embodiment of the sealing device 50 of the piston-cylinder apparatus 51 with piston 52, and the piston is in axle
The inside of cylinder 53 is displaceably arranged on upwards.Piston 52 is formed the wall portion 55 of L-shaped, makes with protuberance 54, the protuberance
Potted component 57 that must be with seal carrier 58 is arranged between protuberance 54 and the wall portion 56 of cylinder 53.
57 substantially L-shaped of potted component ground or V-arrangement ground are constituted, the sealing lip 59 with the static state arranged in inner radial
With the motion seal lip 60 for substantially along radial direction or also favouring radial direction extension.Static sealing lip 59 is in footpath
Internally abut on protuberance 54 or the casing wall portion extended along radial direction of protuberance on, and motion seal lip 60 exists
Radially outer is abutted on the inner wall part 56 of cylinder 53.
With hollow receiving portion 61, described accommodation section is used for sealing holding element 62 with the protrusion of cylindricality protuberance 54
Portion 63 is contained in hollow receiving portion 61, so that sealing holding element 62 is connected with piston.Sealing holding element is except edge
Axial direction extension cylindricality protuberance 63 also have radially outer arrange annular region 64, the region along
Axial direction is projected, and the region 64 of wherein described annular is projected towards the direction of seal or potted component 57.Here, along axle
The region 64 prominent to direction is in the static sealing lip 59 of radially outer overlap joint and adjacent with motion seal lip 60.Inside in footpath
Protuberance 63 and be provided with along radial direction side between the region 64 for axially projecting that inner radial is arranged that portion is arranged
To the region 65 of the dish type for extending, the region of the dish type makes the ring of the protuberance 63 that inner radial is arranged and radially outer setting
Shape and axially project region 64 connect.Keep in the piston 52 with its hollow receiving portion 61 and sealing
Connection between element 62 advantageous by screw, clamp or otherwise by form fit or material fit
Connect to realize.
It can furthermore be seen that energy storage device 66 is supported in sealing holding element 62.For this, sealing holding element 62 exists
With the lip 67 axially projected towards the direction of energy storage device 66, the lip is used for making energy storage device radially outer
66 last coil 68 is fixed along radial direction and is supported so that energy storage device 66 is by means of sealing holding element 62
Position is fixedly disposed, and axially its spring force can be applied in sealing holding element 62.
Reference numerals list
1 sealing device
2 potted components
3 protuberances
The sealing lip of 4 static state
5 motion seal lips
6 wall portions
7 holding elements
8 regions
9 seal carrier
10 sealing devices
11 potted components
12 protuberances
13 piston-cylinder units
The sealing lip of 14 static state
15 pistons
16 motion seal lips
17 wall portions
18 cylinders
19 sealing holding elements
20 regions
21 regions
22 seal carrier
50 sealing devices
51 piston-cylinder apparatuses
52 pistons
53 cylinders
54 protuberances
55 wall portions
56 wall portions, inner wall part
57 potted components
58 seal carrier
The sealing lip of 59 static state
60 motion seal lips
61 receiving portions
62 sealing holding elements
63 protuberances
The region of 64 annulars
The region of 65 dish types
66 energy storage devices
67 lips
68 coils
Claims (4)
1. for the sealing device (50) of piston-cylinder units (51), the piston-cylinder units have cylinder (53) and in the cylinder to one kind
The piston (52) of middle energy axially-movable, the sealing device have the protuberance for accommodating the annular of potted component (57)
(54), described potted component (57) be substantially L-shaped or v shape and there is the motion seal lip extended along radial direction
(60) and axially extending static state sealing lip (59), it is characterised in that be provided with sealing holding element (62), described
Sealing holding element is used for the position of potted component (57) and fixes, and sealing holding element (62) has axially side
To prominent region (64), the region radially outer overlap at least in part the sealing lip (59) of the static state and with institute
State that motion seal lip (60) is adjacent, the protuberance of the annular of piston (52) has hollow receiving portion (61), described
Receiving portion is axially extending, sealing holding element (62) protuberance (63) with cylindricality, the cylindricality prominent
Go out portion to be joined in hollow described accommodation section, sealing holding element (62) also has the dish type extended along radial direction
Region (65), the region of the dish type makes the region (64) for axially projecting of radially outer and the post of inner radial
Protuberance (63) connection of shape, and the region (64) for axially projecting of the region of the dish type and radially outer and
The protuberance (63) of the cylindricality of inner radial is wholely set, and energy storage device is supported on described on the side for deviating from the piston
The back side in the region of the dish type of sealing holding element.
2. sealing device according to claim 1, it is characterised in that axially the prominent region (64) is
The region of annular.
3. sealing device according to claim 1, it is characterised in that described sealing holding element (62) are by its cylindricality
Protuberance (63) is screwed, is clamped, bonding shape-ordinatedly or material fit be connected to the hollow institute of the piston (52)
State in receiving portion (61).
4. sealing device according to any one of claim 1 to 3, it is characterised in that sealing holding element (62)
With axially projecting lip (67) on the side of piston (52), energy storage device (66) are along radial direction
It is supported on the lip.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012216699 | 2012-09-19 | ||
| DE102012216699.8 | 2012-09-19 | ||
| PCT/DE2013/200131 WO2014044266A1 (en) | 2012-09-19 | 2013-08-19 | Seal arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104685270A CN104685270A (en) | 2015-06-03 |
| CN104685270B true CN104685270B (en) | 2017-03-08 |
Family
ID=49225996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380047290.9A Active CN104685270B (en) | 2012-09-19 | 2013-08-19 | Sealing device |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN104685270B (en) |
| DE (2) | DE112013004558A5 (en) |
| IN (1) | IN2015DN01498A (en) |
| WO (1) | WO2014044266A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214254B (en) * | 2014-08-28 | 2017-05-03 | 中车眉山车辆有限公司 | Brake cylinder piston assembly for railway vehicle |
| DE102015213215A1 (en) * | 2015-07-15 | 2017-01-19 | Schaeffler Technologies AG & Co. KG | Seal for a piston-cylinder arrangement |
| DE102018113967A1 (en) | 2018-06-12 | 2019-12-12 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | A sealing interface for an air drying cartridge and a base for an air drying cartridge |
| KR20230027259A (en) * | 2020-08-07 | 2023-02-27 | 콘티넨탈 오토모티브 테크놀로지스 게엠베하 | Elastomer sealing rings for improved sealing systems in electrically actuable automotive disc brakes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198922A (en) * | 1978-10-10 | 1980-04-22 | United States Steel Corporation | Gas barrier coating control apparatus with a readily replaceable gas orifice header segment |
| WO2003044385A1 (en) * | 2001-11-23 | 2003-05-30 | Automotive Products France S.A. | Actuator |
| CN102425542A (en) * | 2010-08-19 | 2012-04-25 | 罗伯特·博世有限公司 | Piston pump, producing method thereof, guiding element thereof, and vehicle brake sysetm |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01161166U (en) * | 1988-04-30 | 1989-11-09 | ||
| US6651429B2 (en) * | 2000-08-14 | 2003-11-25 | Bosch Braking Systems Co., Ltd. | Master cylinder |
-
2013
- 2013-08-19 WO PCT/DE2013/200131 patent/WO2014044266A1/en active Application Filing
- 2013-08-19 CN CN201380047290.9A patent/CN104685270B/en active Active
- 2013-08-19 DE DE112013004558.3T patent/DE112013004558A5/en not_active Withdrawn
- 2013-08-19 DE DE102013216396.7A patent/DE102013216396A1/en not_active Withdrawn
-
2015
- 2015-02-23 IN IN1498DEN2015 patent/IN2015DN01498A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198922A (en) * | 1978-10-10 | 1980-04-22 | United States Steel Corporation | Gas barrier coating control apparatus with a readily replaceable gas orifice header segment |
| WO2003044385A1 (en) * | 2001-11-23 | 2003-05-30 | Automotive Products France S.A. | Actuator |
| CN102425542A (en) * | 2010-08-19 | 2012-04-25 | 罗伯特·博世有限公司 | Piston pump, producing method thereof, guiding element thereof, and vehicle brake sysetm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104685270A (en) | 2015-06-03 |
| WO2014044266A1 (en) | 2014-03-27 |
| DE102013216396A1 (en) | 2014-03-20 |
| DE112013004558A5 (en) | 2015-06-03 |
| IN2015DN01498A (en) | 2015-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104685270B (en) | Sealing device | |
| US9352631B2 (en) | Vehicle height adjusting device and assembling method for vehicle height adjusting device | |
| JP6641783B2 (en) | Seal ring, method of manufacturing seal ring, and use of seal ring | |
| KR20060130761A (en) | Sealing device for reciprocating shaft | |
| TR201901539T4 (en) | Linear compressor. | |
| CN108779859B (en) | Sealing structure | |
| CN109563857A (en) | The manufacturing method of fluid pressure device and piston assembly | |
| CN109611408A (en) | Sealing device | |
| KR20180091875A (en) | Automotive vibration damper | |
| CN110325773B (en) | Method for manufacturing sealing device and sealing device | |
| CN103782071A (en) | Radial shaft seal, radial shaft seal assembly and method of installation | |
| US10330170B2 (en) | Shock absorber | |
| CN107429712A (en) | Metal bellow type accumulator | |
| CN104476168B (en) | Oil sealing pressure head assembly | |
| CN110546413A (en) | Sealing device | |
| JP2015161364A (en) | shock absorber | |
| US10436326B2 (en) | Sealing system and a valve provided therewith | |
| EP3156700A1 (en) | Mechanical seal | |
| CN103625922B (en) | Clamp device | |
| CN106574644A (en) | Master cylinder with guide sleeve for a sealing lip of the sniffer system | |
| JP2010175042A (en) | Cylinder device | |
| CN102182719A (en) | Air-flotation air cylinder structure | |
| US10478761B2 (en) | Filter device | |
| CN110546414A (en) | Sealing device | |
| CN202834038U (en) | Hydraulic piston cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |