CN105814345A - Sealing arrangement for radially loaded round guides - Google Patents
Sealing arrangement for radially loaded round guides Download PDFInfo
- Publication number
- CN105814345A CN105814345A CN201480067880.2A CN201480067880A CN105814345A CN 105814345 A CN105814345 A CN 105814345A CN 201480067880 A CN201480067880 A CN 201480067880A CN 105814345 A CN105814345 A CN 105814345A
- Authority
- CN
- China
- Prior art keywords
- guide
- strigil
- piston rod
- ring
- groove
- 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.)
- Pending
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
- 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
- F16J15/3224—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations
-
- 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
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to a sealing arrangement for radially loaded round guides in which a guide or piston rod (10) is mounted in an axially movable manner in at least one guide bushing (13) and the guide or piston rod (10) is assigned a scraper (18), which is provided axially adjacent to an end of the guide bushing (13), as a sealing means, in particular provided in forming machines such as ring blank presses or radial-axial rolling machines for moving a machine element. The problem addressed by the invention is providing a sealing arrangement that allows for improved sealing as wear on the guide bushings increases, even if very hard, rigid scrapers are used. This problem is solved in that the scraper (18) consists of a non-elastic material and is arranged with radial play inside a groove (15) formed circumferentially on or in a component (7) that receives the guide or piston rod (10).
Description
Technical field
The present invention relates to a kind of black box for the circular guide by radial load, its machine element being especially placed in forming machine, such as ring base press or radial-axial ring rolling mill (Radial-Axial-Walzmaschine) for movement, wherein, guide bar or piston rod to be bearing at least one guide sleeve with may be axially movable, and for guide bar be assigned as air locking, be arranged to the strigil axially adjacent of the front end edge with guide sleeve.
Background technology
Machine for rolling ring or radial-axial ring rolling mill or ring base press are forming machine, utilize it to roll into or be pressed into the seamless annular element with desired cross section by ring base by expansion radially.
At least one king roller driven being applied on outside annular element and the core roller (Dornwalze) being applied on inside annular element such as it is generally of by this machine for rolling ring that document DE2917369A1 is known.Two axial roll (that is, the axial roll of the axial roll on top and bottom) can be applied on annular element end face.
Well-known machine for rolling ring includes the support that position is fixing in principle, and it is with king roller driven；Radial struts, it holds and guiding the core roller slide of movement on bar and can be used for the centering unit of ring base；And moveable axially support, its have bottom axial roll and in axial slide the axial roll on adjustable top.
Generally can hydraulic loaded ground movement guiding bar (wherein, movement for core roller slide, generally arrange four pairs and seal position, every pair therein has two the sealing positions being isolated from each other accordingly, and therefore amount to and be provided with eight and seal positions) it is bearing in the guide sleeve of frame with may be axially movable, guide sleeve is arranged in the component that the position of frame is fixing.
Guide sleeve and therefore guide the supporting portion of bar utilize outwardly the strigil as air locking prevent pollute.Recline face to be sealed or guide the strigil of bar in the lid that this loads in the support of machine for rolling ring coaxially with guide sleeve or loading can be connected with support individually.
Undertake guide sleeve stand under load when guiding bar radially to move of the supporting guiding bar.Abrasion that is unilateral or that cause on the part of its periphery of guide sleeve often occur at this, it causes guiding bar and guides, relative to enclosing in guide sleeve and surrounding with one heart, the eccentric position enclosed in the strigil of bar.
Therefore, the center displacement (what belong to this situation such as also has polygonal guiding bar) of circular guide when axially-movable owing to the side force that loads occurs simultaneously.This side force is due to the additional mass conducted oneself with dignity, couple and/or the power appearance being derived from processing technique or deformation technique.In the cylinder of mobile hydraulic system (such as wheeled loader or mobilecrane), this is due to almost arbitrary cylinder position, can there is the side force relevant to function at this.Additionally, side force also occurs in compact cylinder (it is used for supporting or engaging the heaviest structural detail for assembling at the construction field (site)).The guide performance that cylinder is excessively poor owing to structure height is generally of.Additionally, structural detail is mostly just inaccurately fixed during assembling and guides, and this causes the radial deflection of piston rod.
Except, in core roller slide already mentioned above in radial-axial ring rolling mill, in the machine, the guiding bar guiding slide equally only can not unsatisfactory ground secondary deoxidation skin.For, in the vertical stroke of descale, crossing whole annular element height (until 4m) at axial support place.Meanwhile, the water (such as 250bar, 400l/min) of outflow is guiding generation on slide to be applied to the moment on guiding bar or side force.
This center displacement guiding bar or piston rod in certain limit can be caused by soft and that elastic material is made strigil.But, this type of material (it also enables abrasion quickly and only very short life-span) is not suitable for being subject to the sealing system of the circular guide of significantly high radial load.
Strigil material is more hard and therefore more wear-resisting, and material causes the trend guiding bar or piston rod and the therefore displacement of the bias of sealing surface more little.If reaching strigil elastic limit of materials, and the lateral displacement that result is caused by the abrasion of guide sleeve increases further, strigil lifts from guiding bar or piston rod at the sidepiece unloaded or partial radius (Teilradius) place, and dirt housing can invade in the space between guide sleeve and bar in the clear.
Accordingly, because the severe service condition in especially machine for rolling ring or ring base press, only use the strigil that the elastic material by stone unbending and therefore only only small degree is constituted.Soft elastic strigil will wear and tear as quick as thought, and owing to installation site merely has to change with significantly high cost.
Summary of the invention
Therefore, it is an object of the invention to provide the black box of a kind of circular guide for being subject to significantly high radial load, utilize this black box can avoid disadvantages mentioned above, even and if can also realize the sealing improved when using stone, unbending strigil when guide sleeve is increasingly worn and torn.
According to the present invention, this purpose is achieved in: strigil be made up of stiff material and be arranged in circumferentially construct hold the component place guiding bar or piston rod or in, in the groove with movement clearance radially.When the eccentric guiding being accompanied by this enclosed in enclosing one side, place or abrasion partly in guide sleeve and guiding bar or piston rod relative to guide sleeve or position, strigil automatically causes center to shift due to the movement of the radial direction in groove, thus strigil can be felt relieved on guiding bar or piston rod and seal around guiding bar or piston rod all the time.Simultaneously with this place effect of attrition that just protection guide sleeve is not improved immediately.
This strigil effectively preventing foul from invading between guide sleeve and bar when guiding bar to move axially relative to cylinder relative to the slide at machine for rolling ring place or piston rod circumferentially can abut in for application-specific ground and being differently such as configured with guide bar or piston rod place, relative to this guiding bar or the reeded sealing lip of piston rod or sealing strip.Due to free space radially or movement clearance, strigil can under any circumstance by extremely hard unbending and therefore stiff material constitute.
The hardness of the strigil material of elastically deformable to a great extent can unrestricted choice, because in order to make strigil abut in guiding bar place hermetically, it is no longer that material tends to causing the center guiding bar or piston rod to shift fatefully, but the mobility of the radial direction of strigil.
A kind of preferred embodiment of the present invention is provided with the pushing out ring surrounding strigil with one heart, and this pushing out ring is configured with the sealing of embedding at least one annular element end face.Despite the presence of movement radially or mobility, realizing permanent seal guide sleeve or supporting portion yet by the sealing embedded in annular element end face, this sealing more specifically abuts in the place of wall portion towards this sealing of groove closely and enduringly.Strigil itself can remain unchanged in it is for the frame mode of application-specific at this, thus the embodiment of commercialization can be used, because the sealing of end face side joins complementary part, namely props up in pushing out ring.Now, prop up pushing out ring only to need to be pulled on strigil before being encased in the groove of frame or tubular shell.Alternatively, strigil and a pushing out ring are alternatively arranged as the installed part of single-piece and provide, or are configured to the installed part of single-piece, for instance realized by bonding connection etc..
When the strigil of combined support ring and random molding, it is only necessary to ensure the free space of enough radial directions, it has the movement clearance for strigil/support ring element mobility in groove, to compensate center displacement.
Strigil/support ring element is coaxially disposed in groove with guiding bar or piston rod, and wherein, strigil abuts in the peripheral place guiding bar or piston rod with its sealing surface, and with having radial clearance spaced apart with the pocket ends of the groove surrounded outside the annular element of a pushing out ring.
Another design according to the present invention specifies, the clear span between the wall portion of the groove surrounded is a bit larger tham the width of a pushing out ring, and wherein, sealing abuts in a place in wall portion.Only need well width than the big a few tenths of a mm supporting ring width at this, so as to be advantageously carried out the mobility of a pushing out ring easier radial direction in the groove surrounded.But still the sealing (preferred O) in the recess of embedding annular element end face can be passed through and be effectively prevented the intrusion of dirt or foul.Yet by seal with O ring portion, so that slight prestressing force reclines relatively, the cell wall portion put supports for this.
Accompanying drawing explanation
By the claim of the present invention and other features and the details that obtain the present invention in the accompanying drawings in conjunction with the following description of the embodiment shown in radial-axial ring rolling mill or machine for rolling ring and core roller slide especially used herein.Wherein:
Fig. 1 is always to illustrate machine for rolling ring, and it has moveable axially support and can guide the radial struts of movement on bar；And
Fig. 2 illustrates the region surrounded in FIG for the black box guiding bar for making core roller slide move with chain-dotted line using the cut-away section as the details of Fig. 1.
Detailed description of the invention
Figure 1 illustrates the basic structure of machine for rolling ring 1.Machine for rolling ring 1 is for manufacturing seamless annular element, and it is formed by ring base 2 rolling.
Machine for rolling ring 1 has the cone-shaped roll 6 of king roller 3, core roller 4, the cone-shaped roll 5 on top and bottom.King roller 3 is applied on outside annular element, and core roller 4 (it is also known as roll roller core) is applied on inside annular element.Cone-shaped roll 5,6 is applied on annular element end face.Axial roll gap is formed between cone-shaped roll.Therefore, cone-shaped roll 3,4 is also known as axial roll.
King roller 3 and core roller 4 form the first roll pair, and cone-shaped roll 5 and cone-shaped roll 6 form the second roll pair, wherein, drive a roll of these roll centerings at least respectively.
King roller 3 position for ring base 2 is fixedly placed in the support of machine for rolling ring 1, is arranged in or rather in the frame 7 of radial struts 8, and for the core roller 4 of ring base 2 and centering unit 9 by the core roller slide 11 of movement on bar 10 being guided to hold.
Machine for rolling ring 1 have with radial struts 8 level of relative and put, moveable axially support 12, the cone-shaped roll 6 of its cone-shaped roll 5 with top and bottom.
In order to realize stablizing and undelayed mobility of core roller slide 11, amounting in the component that the position that four guiding bars 10 are arranged on radial struts 8 frame 7 or rather is fixing, wherein, the guiding bar 10 corresponding pairs ground with bottom on top is relative and puts.
The black box for guiding in bar 10 one is diagrammatically show in fig. 2 with what amplify.
Guide bar 10 to may be axially movable ground-direction of arrow 14-and be bearing in that being spaced turns up the soil is arranged in two guide sleeve 13 in the frame 7 of machine for rolling ring 1, wherein, figure 2 illustrates the guide sleeve 13 irised out in FIG guiding bar 10 of bottom with chain-dotted line.
Additionally, have, for each guide sleeve 13 is axially adjacent, the groove 15 surrounded surrounding guiding bar 10 with one heart at frame 7 place in outside front-end structure.Groove 15 holds a pushing out ring 16 and by 17 strigils 18 surrounded with one heart inside the annular element of this pushing out ring.Prop up pushing out ring 16 together with abutting in the structure height guiding the strigil 18 on bar 10 hermetically less than the height of the groove 15 surrounded, thus forming free space 21 radially outside the annular element of a pushing out ring 16 between 19 and the pocket ends 20 of groove 15, this free space makes it possible to realize the movement clearance for moving radially for a pushing out ring 16 and strigil 18.
The axially-movable guiding bar 10 needed at machine run duration cause the abrasion of the unilateral of guide sleeve 13 or part and be accompanied by this guide bar 10 relative to guide sleeve 13 in the eccentric guiding enclosed or position.But because of propping up the center displacement that pushing out ring 16 guides bar 10 with strigil 18 owing to the mobility of the radial direction in groove 15 causes, strigil 18 automatically can be felt relieved on guiding bar 10 and circumferentially seal around guiding bar all the time.
In order to be conducive to the mobility of a pushing out ring 16 easier radial direction in the groove 15 surrounded, a few tenths of a mm bigger than the width of a pushing out ring 16 of the clear span between the wall portion 22,23 of groove 15.
For process technology reason and especially for the accessibility freely when strigil 18 and a pushing out ring 16 being encased in frame 7, the external wall portion 23 of groove 15 is configured to tightening piece (Anschraubteil).
Finally, prop up pushing out ring 16 and be provided with the sealing 24 of annular element side that be advantageously configured as O, that be embedded into inside, it causes the sealing relative to the built-in wall portion 22 of groove 15 of pushing out ring 16, thereby while there is mobility radially and still without dirt or do not have foul can arrive guide sleeve 13.
Accompanying drawing labelling
1 machine for rolling ring
2 ring bases
3 king rollers
4 core rollers
The cone-shaped roll on 5 tops
The cone-shaped roll of 6 bottoms
7 for holding the frame or component guiding bar or piston rod
8 radial struts
9 centering units
10 guide bar
11 core roller slides
12 axial supports
13 guide sleeve
14 arrows
15 grooves
16 pushing out rings
Inside 17 annular elements
18 strigils
Outside 19 annular elements
20 pocket ends
21 free spaces radially
22 wall portions
23 wall portions
24 sealings
Claims (3)
1. the black box for the circular guide by radial load, it is especially placed at forming machine, such as, for the machine element of movement in ring base press or radial-axial ring rolling mill, wherein, guide bar or piston rod (10) can be bearing at least one guide sleeve (13) axially movable, and it is assigned as air locking for described guiding bar or piston rod (10), it is arranged to the strigil (18) axially adjacent with the front end edge of described guide sleeve (13), it is characterized in that, described strigil (18) is made up of stiff material, and be arranged in circumferentially construct hold described guiding bar or piston rod (10) component (7) place or in groove (15) in, this groove has movement clearance radially.
2. black box according to claim 1, it is characterized in that, being provided with the pushing out ring (16) surrounding described strigil (18) with one heart, this pushing out ring is configured with the sealing (24) of embedding at least one annular element end face.
3. black box according to claim 2, it is characterized in that, clear span between the wall portion (22,23) of the groove (15) surrounded is a bit larger tham the width of a described pushing out ring (16), wherein, described sealing (24) abuts on one in described wall portion (22,23).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013225870 | 2013-12-13 | ||
| DE102013225870.4 | 2013-12-13 | ||
| PCT/EP2014/077553 WO2015086816A1 (en) | 2013-12-13 | 2014-12-12 | Sealing arrangement for radially loaded round guides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105814345A true CN105814345A (en) | 2016-07-27 |
Family
ID=52292868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480067880.2A Pending CN105814345A (en) | 2013-12-13 | 2014-12-12 | Sealing arrangement for radially loaded round guides |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3080491A1 (en) |
| JP (1) | JP6259100B2 (en) |
| KR (1) | KR101911813B1 (en) |
| CN (1) | CN105814345A (en) |
| WO (1) | WO2015086816A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11215285B2 (en) * | 2019-03-19 | 2022-01-04 | Caterpillar Inc. | Seal design |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019736B1 (en) * | 1980-05-23 | 1981-06-19 | Volkswagenwerk Ag, 3180 Wolfsburg | Piston rod seal, especially for vibration dampers assigned to vehicle wheels |
| DE29880133U1 (en) * | 1997-02-14 | 2000-03-02 | Valmet Corp., Helsinki | Axial seal for a rotatable element, in particular for an axis, shaft or the like. |
| DE19930964A1 (en) * | 1999-07-05 | 2001-03-15 | Mannesmann Sachs Ag | Radially movable piston rod seal |
| US20010007385A1 (en) * | 2000-01-08 | 2001-07-12 | Francis Lebeau | Sealing arrangement between two components rotating relative to one another |
| CN101371065A (en) * | 2006-01-11 | 2009-02-18 | Skf美国公司 | Seal assembly with protective filter |
| CN202402644U (en) * | 2011-12-31 | 2012-08-29 | 中国燃气涡轮研究院 | Floating ring sealing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889958A (en) * | 1974-04-15 | 1975-06-17 | Case Co J I | Piston rod floating wiper |
| DE2917369A1 (en) | 1979-04-28 | 1980-11-27 | Thyssen Industrie | MULTI-SPIN RING ROLLING MACHINE |
| JP2579816Y2 (en) | 1992-05-12 | 1998-09-03 | 太陽鉄工株式会社 | Dust sealing device for hydraulic cylinder |
| DE102008011126A1 (en) * | 2008-02-26 | 2009-09-24 | Stasskol Kolbenstangendichtungen Gmbh | Stripping gasket for sealing article facing medium, is arranged around article in peripheral direction, where gasket contains no recesses, slots or holes, which allow oil passage between front surface of gasket and striking-off edge |
| US8567227B2 (en) * | 2010-02-05 | 2013-10-29 | Dadco, Inc. | Guide and retention assembly for a die set |
| AT508782B1 (en) * | 2010-02-15 | 2011-04-15 | Hoerbiger Kompressortech Hold | CIRCUIT ARRANGEMENT AND COMPRESSOR WITH SUCH A CUT-OFF ARRANGEMENT |
| JP5729548B2 (en) | 2011-02-17 | 2015-06-03 | 東洋製罐株式会社 | Sealing device |
-
2014
- 2014-12-12 EP EP14824395.9A patent/EP3080491A1/en not_active Ceased
- 2014-12-12 JP JP2016538614A patent/JP6259100B2/en active Active
- 2014-12-12 CN CN201480067880.2A patent/CN105814345A/en active Pending
- 2014-12-12 WO PCT/EP2014/077553 patent/WO2015086816A1/en active Application Filing
- 2014-12-12 KR KR1020167018117A patent/KR101911813B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019736B1 (en) * | 1980-05-23 | 1981-06-19 | Volkswagenwerk Ag, 3180 Wolfsburg | Piston rod seal, especially for vibration dampers assigned to vehicle wheels |
| DE29880133U1 (en) * | 1997-02-14 | 2000-03-02 | Valmet Corp., Helsinki | Axial seal for a rotatable element, in particular for an axis, shaft or the like. |
| DE19930964A1 (en) * | 1999-07-05 | 2001-03-15 | Mannesmann Sachs Ag | Radially movable piston rod seal |
| US20010007385A1 (en) * | 2000-01-08 | 2001-07-12 | Francis Lebeau | Sealing arrangement between two components rotating relative to one another |
| CN101371065A (en) * | 2006-01-11 | 2009-02-18 | Skf美国公司 | Seal assembly with protective filter |
| CN202402644U (en) * | 2011-12-31 | 2012-08-29 | 中国燃气涡轮研究院 | Floating ring sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160095109A (en) | 2016-08-10 |
| EP3080491A1 (en) | 2016-10-19 |
| JP2017500511A (en) | 2017-01-05 |
| KR101911813B1 (en) | 2018-10-25 |
| JP6259100B2 (en) | 2018-01-10 |
| WO2015086816A1 (en) | 2015-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
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| RJ01 | Rejection of invention patent application after publication |