EP4251896A1 - Vorrichtung und verfahren zur montage einer dichtung an einem lagerring eines wälzlagers - Google Patents
Vorrichtung und verfahren zur montage einer dichtung an einem lagerring eines wälzlagersInfo
- Publication number
- EP4251896A1 EP4251896A1 EP21806976.3A EP21806976A EP4251896A1 EP 4251896 A1 EP4251896 A1 EP 4251896A1 EP 21806976 A EP21806976 A EP 21806976A EP 4251896 A1 EP4251896 A1 EP 4251896A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- seal
- ring
- bearing ring
- rotating
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 14
- 238000010924 continuous production Methods 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 2
- 238000007789 sealing Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/045—Mounting or replacing 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Definitions
- the invention relates to a method for installing a strand-shaped seal on a bearing ring, ie the inner ring or outer ring, of a roller bearing.
- the invention further relates to a device suitable for carrying out such a method.
- a sealing unit for roller bearings is known, for example, from EP 0 748 968 B1.
- This sealing unit is provided for the fluoride-tight sealing of a gap formed between two elements rotating relative to one another.
- the sealing unit according to EP 0 748 968 B1 includes components of different resilience and should be suitable for sealing angular contact ball bearings.
- roller bearings made up of metallic and/or non-metallic components are disclosed, for example, in the documents WO 2015/127912 A1, DE 10 2012 206 892 A1, DE 10 2010 053 859 A1 and DE 102018 122 201 A1.
- EP 0 747 615 B1 discloses a strand-shaped seal made from expanded graphite and a method for producing such a seal.
- the string-shaped seal comprises an expanded graphite base element in which expanded graphite particles are located.
- a major surface of the expanded graphite base member is provided with an impregnating layer of sealing material.
- a seal for a roller bearing described in DE 10 2012 223 903 A1 comprises a ring body which is inserted into a first bearing ring of a roller bearing and has a sealing area which makes contact with a second bearing ring of the roller bearing and describes a polygonal cross section. The entire seal can come off be made of plastic.
- DE 10 2012 223 903 A1 mentions acrylonitrile butadiene rubber as a possible material.
- sealing cords are described, for example, in the documents EP 1 314 918 A8 and DE 102007 061 580 A1. In both cases, sealing cords have a core and a sheath enclosing the core.
- the object of the invention is to design the assembly of a seal that is in the form of a strand on a bearing ring of a roller bearing in a particularly production-friendly manner, with a particularly high degree of process reliability being sought.
- the mounting device is intended to mount a seal, which is initially in the form of a strand, on one of the bearing rings of the Wälzla gers, i.e. either on the inner ring or on the outer ring.
- the Montagevor direction includes a mounting table, which is designed to fix one of the bearing rings while rotating the other bearing ring.
- the non-rotating bearing ring can be fixed in a variety of ways, for example with the aid of a mechanical braking device. In the simplest case, especially for large bearings, the weight of the bearing ring can be sufficient to keep it in a fixed position on the assembly table.
- the assembly device also includes a supply device, also referred to as an assembly head, which is designed to press a strand-shaped seal into a groove located in the rotating bearing ring in a continuous process.
- the seal can either be made from the same material or from a combination of different materials. In the latter case, the seal can be constructed in particular from metallic and non-metallic materials. A construction of the originally strand-shaped seal from different non-metalli's materials of different rigidity is possible. In all cases, the cross-section of the linear seal is designed so that the seal can be anchored stably in the groove of one bearing ring and also achieve the desired sealing effect in relation to the other bearing ring. For this purpose, it can be advantageous to manufacture a sealing foot to be inserted into the groove of the first bearing ring from a stiff material, whereas a sealing lip adjoining the sealing foot, which comes to rest on the second bearing ring, is comparatively flexible.
- a different resilience of the seal foot on the one hand and the sealing lip on the other hand is typically also influenced by the cross-sectional design of the mentioned sections of the seal, even in cases of a structure of the same material.
- the sealing lip can be completely or partially provided with a friction-reducing coating, whereas such a coating does not exist in the area of the sealing foot.
- the seal is continuously inserted into a groove in the rotating bearing ring with the aid of a rotating disc whose axis of rotation is perpendicular to the central axis of the bearing rings is formed, pressed.
- a freely rotatable disk which is mounted directly or indirectly on a pivotable arm, can be used to insert the seal into the groove formed in the bearing ring.
- a disc that is hat-shaped, ie has an outwardly directed flange, is particularly suitable. In this case, the flange serves in particular to press the sealing foot into the groove in a targeted manner.
- the groove has a rectangular cross-section, optionally with a rounded groove base.
- a channel through which the string of sealant to be fed into the groove is advanced may be attached to the pivotable arm or formed directly by that arm.
- a lubricant supply in particular an oil supply, with which a lubricant or another substance to be used during assembly is applied to the linear seal, opens into this channel.
- the string-shaped seal which is to be pushed forward through the channel, is initially present in a coiled form.
- a friction roller drive for example, which can be attached to the arm mentioned, is suitable for advancing the strand-shaped seal in the channel.
- the friction roller drive can include a driven friction roller and a friction roller that rotates without its own drive, with the seal passing through a gap formed between the two friction rollers in a manner that is gentle on the material.
- a friction roller drive with several, in particular two, driven friction rollers can also be used.
- the rollers of the friction roller drive can be designed as profile rollers.
- a cutting device can be attached to the arm of the driving device.
- a positioning device on the assembly table which can, for example, have several linear drive devices synchronized with one another, which are suitable for moving and/or centering the roller bearing on the assembly table. includes.
- the linear drive devices can be mechanically or electronically synchronized with each other.
- a friction drive device has the advantage that it can be used for different types of roller bearings, whereby it contacts the bearing rings of the different roller bearings while optimally protecting their surface.
- a sensor system which comprises at least one optical sensor, for example, can be attached to the feed device, which is designed as an assembly head.
- Fig. 1 shows a device for mounting a seal on a bearing ring of a
- FIG. 2 and 3 a mounting head of the device according to Figure 1 in different views.
- a mounting device generally designated by the reference numeral 1, includes a feed device 2, which is also generally referred to as a mounting head and is used to insert a linear seal 11 into a bearing ring 5, 6 of a rolling bearing. gers 4 to use.
- the roller bearing 4 is a grooved ball bearing with an inner ring 5 and an outer ring 6 as bearing rings 5, 6.
- the roller bearing 4 is located on an assembly table 3 during the assembly process designated.
- the rolling bodies, ie balls, of the rolling bearing 4 are denoted by 8 .
- the seal 11 In the inner ring 5 is as well as in the outer ring 6 each have an annular umlau fende groove 9, 10, in which the seal 11 is to be used.
- the seal 11 includes a seal foot 12 and a sealing lip 13, which after assembly to position on an end face 14, 15 of the outer ring 6 or the inner ring 5 arrives.
- the seal 11 is made of the same material.
- a support and clamping device 16 which comprises a linear actuator 17 of the first type and two linear actuators 18, 19 of the second type.
- the linear actuators 17, 18, 19 are mechanically coupled to one another by a drive and synchronization device 20, which is located centrally between the linear actuators 17, 18, 19 arranged in a star shape.
- the linear actuators 17, 18, 19, which are generally also referred to as linear drive devices, are associated with roller assemblies 21 on which the bearing rings 5, 6 rest in a rotatable manner.
- a frictional drive device 22 is provided for the targeted drive of a bearing ring 5 , 6 , ie either the inner ring 5 or the outer ring 6 , which includes various friction rollers 23 , 24 .
- the outer ring 6 can be driven with the aid of an outer friction roll le 23 .
- Internal friction rollers 24, which allow the inner ring 5 to be driven, can be driven via a belt drive 25 in one case.
- the remaining inner friction rollers 24 do not have their own drive.
- the mounting head 2 can be positioned with the aid of a swivel arm 26 which is mounted on a manipulator base part 27 .
- the manipulator base part 27 is mounted on the assembly table 3.
- the swivel arm 26 is connected in an articulated manner to an intermediate part 28 of the manipulator.
- On the Manipulator intermediate part 28 in turn is a fluttering device 29 which carries the mounting head 2 .
- the mounting head 2 comprises an arm 30 which has the shape of a metal strip which has been bent several times.
- An end section 31, a foot section 32, and an intermediate section 33 of the arm 30 lie in mutually parallel planes, with the intermediate section 33 being at the smallest distance from the groove 9.
- an angle profile 46 is attached at the foot portion 32 of the arm 30, at which an angle profile 46 is attached.
- a channel 35 is connected to the angle profile 46, through which the linear seal 11 is pushed during assembly.
- a first section 36 of the channel 35 is perpendicular to the groove 9 and a second section 37 from the channel 35 in the tangential direction of the groove 9 on the surface of the string-shaped seal 11 outside the groove 9 allows.
- a disk 38 is mounted so as to be freely rotatable.
- the total hat-shaped disc 38 has a flange 39, the ge the seal 11 to be more precise: the seal base 12 in the intended manner in the groove 9 presses.
- a friction roller drive 41 is provided, which is located on the angle section 46 and includes an electric motor 42.
- a non-driven roller of the friction roller drive 41 is denoted by 43 .
- the mounting head 2 includes a cutting device 44, which is also held on the angle profile 46 and with which the seal 11 can be cut off at the appropriate point.
- a blade of the cutting device 44 is denoted by 45 .
- a linear actuator of the cutting device 44 is denoted by 47 .
- the linear actuator 47 is a pneumatic actuator.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO202000775A RO135762A2 (ro) | 2020-11-24 | 2020-11-24 | Dispozitiv şi procedeu de montare a unei garnituri pe un inel al unui lagăr de rostogolire |
PCT/DE2021/100869 WO2022111751A1 (de) | 2020-11-24 | 2021-11-03 | Vorrichtung und verfahren zur montage einer dichtung an einem lagerring eines wälzlagers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4251896A1 true EP4251896A1 (de) | 2023-10-04 |
Family
ID=78621601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21806976.3A Pending EP4251896A1 (de) | 2020-11-24 | 2021-11-03 | Vorrichtung und verfahren zur montage einer dichtung an einem lagerring eines wälzlagers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4251896A1 (de) |
CN (1) | CN116368307A (de) |
RO (1) | RO135762A2 (de) |
WO (1) | WO2022111751A1 (de) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2645800B2 (ja) | 1993-12-14 | 1997-08-25 | 日本ピラー工業株式会社 | 膨張黒鉛製シール素材およびその製造方法ならびにガスケット用シート |
IT1276377B1 (it) | 1995-06-13 | 1997-10-31 | Skf Ind Spa | Complesso di tenuta, in particolare per un cuscinetto di rotolamento. |
DE10157297A1 (de) | 2001-11-22 | 2003-06-05 | Bhs Sonthofen Maschinen & Anlagenbau Gmbh | Dichtschnur, eine Mehrzahl derartiger Dichtschnüre umfassende Dichtungspackung |
JP2003214447A (ja) * | 2002-01-17 | 2003-07-30 | Hitachi Constr Mach Co Ltd | 旋回軸受 |
DE102007061580A1 (de) | 2007-12-18 | 2009-06-25 | Obshestvo S Ogranichennoi Otvetstvennostiu "Ilma" | Dichtungsschnur mit einem Kern und einer den Kern umschließenden Umhüllung |
DE102010053859A1 (de) | 2010-12-08 | 2012-06-14 | Schaeffler Technologies Gmbh & Co. Kg | Lagereinrichtung |
DE102012206892A1 (de) | 2012-04-26 | 2013-10-31 | Schaeffler Technologies AG & Co. KG | Wälzlager mit Dichtscheibe |
DE102012223903A1 (de) | 2012-12-20 | 2014-06-26 | Schaeffler Technologies Gmbh & Co. Kg | Dichtung für ein Wälzlager und Wälzlager |
DE102014203520A1 (de) | 2014-02-27 | 2015-08-27 | Schaeffler Technologies AG & Co. KG | Wälzlager mit Dichtung |
DE102018122201A1 (de) | 2018-09-12 | 2020-03-12 | Schaeffler Technologies AG & Co. KG | Dichtung für ein Wälzlager |
CN109488696A (zh) * | 2018-11-17 | 2019-03-19 | 镇江市丹徒阳光轴承有限公司 | 一种轴承密封圈压装工装 |
CN109322927A (zh) * | 2018-11-30 | 2019-02-12 | 常熟长城轴承有限公司 | 一种十字交叉滚子轴承密封圈的压装工装 |
-
2020
- 2020-11-24 RO RO202000775A patent/RO135762A2/ro unknown
-
2021
- 2021-11-03 CN CN202180068902.7A patent/CN116368307A/zh active Pending
- 2021-11-03 WO PCT/DE2021/100869 patent/WO2022111751A1/de unknown
- 2021-11-03 EP EP21806976.3A patent/EP4251896A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
RO135762A2 (ro) | 2022-05-30 |
CN116368307A (zh) | 2023-06-30 |
WO2022111751A1 (de) | 2022-06-02 |
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