• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Bearing seal assembly tool, bearing comprising an inner ring and an outer ring, such that the outer ring is attached to a hub by a plurality of connecting bolts, comprising a base structure (1) comprising a main beam (7) curved in shape, which reproduces in the form of a groove for anchoring the retainer, and two housings (9) at the ends of the main beam (7), the tool also includes means for fixing the base structure (1) to two connecting bolts, a carriage (12) movable along the main beam (7), configured to introduce the retainer into the retainer anchor slot, where the fixing means of the base structure (1) the housings (9) of the base structure (1) are fixed by positioning the base structure (1) over the groove of the retainer. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2750877A1
    申请号:ES201830930
    申请日:2018-09-26
    公开日:2020-03-27
    发明作者:Santa Cruz Aitor Zurutuza；Goicoechea Oscar Barbero
    申请人:Laulagun Bearings SL；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] Field of the Invention
    [0005] The present invention refers to a bearing seal assembly tool, specifically in large turbine bearings, since it can be used for both wind turbine turbines and tidal turbines. The tool object of the invention is applicable in the field of power generation.
    [0006]
    [0007] Background of the Invention
    [0008] In simpler terms, a seal is a barrier, which has four specific functions: to retain lubricants or liquids, to prevent dirt / contaminants from entering, to separate fluids or gases, and to resist pressure differences.
    [0009]
    [0010] When a retainer performs these functions properly, it protects the bearing from harmful contaminants, while maintaining a clean lubricant supply, translating into increased reliability and longer bearing life. The bearings perform their work better, the cleanliness of production and process materials is maintained, lubricant is saved and machinery downtime is reduced.
    [0011]
    [0012] The bearings of a wind turbine are generally designed for the life of the wind turbine. However, the seals that retain grease inside the bearing and protect it from different climatic conditions and contamination are not designed to last the life of the bearing, but these seals must be periodically replaced by new ones due to wear, dust, etc. .
    [0013]
    [0014] The useful life of the seal depends mainly on the climate and the contamination conditions, therefore, it is not easy to anticipate said useful life, however, for reference, these seals must be replaced every few years.
    [0015]
    [0016] Disposal of a used wind turbine pitch bearing retainer on site or during camber bearing manufacture is currently very easy and quick, as only one seal needs to be removed from a groove or bearing seat. Nevertheless, assembling a new seal on a wind turbine bearing, performed on site, is a very difficult and time consuming operation.
    [0017]
    [0018] Retainer replacement when performed on-site in a wind turbine generally involves an operator working at a high altitude, being a hazardous job, requiring great physical effort on the part of the operator performing the replacement.
    [0019]
    [0020] Retainer replacement operations have traditionally been carried out with hand tools that are available to them, therefore, considering the dangerousness of the operation and its complexity, it is desirable that a tool be developed that helps the operator. to perform the work of replacing the seal.
    [0021]
    [0022] The use of a semi-automatic seal mounting tool reduces the risks of damaging the bearing and allows the seals to be replaced without the operator having to have full access to the groove area, making it possible to mount in limited areas or no access and accelerating its assembly.
    [0023]
    [0024] Document 8,181,326 B2 is known in the state of the art, which discloses a tool to install a gasket in a wind turbine that has a main body with two wings and a raised part, which also has a support attached to the main body with a threaded hole to be attached by a nut. The tool also features an installation means that includes an insert wheel attached to a wheel bracket, with two elements between the bearing rings, so that relative movement between the two rings causes the insert wheel to rotate and insert the gasket in a groove configured to house said gasket.
    [0025]
    [0026] Description of the Invention
    [0027] The object of the invention is a tool for assembling seals in turbine bearings, where the bearing comprises an inner ring and an outer ring, and the turbine comprises at least one blade and at least one hub. The bearing elements and the turbine elements are joined by a plurality of union bolts and between the bearing elements and the turbine elements they are located a retaining anchor groove where a retainer is required which has to be periodically replaced.
    [0028] The tool object of the invention comprises a base structure which in turn comprises a main beam and two housings at the ends of the main beam, means for fixing the base structure to two connecting bolts and a trolley that can be moved along the main beam
    [0029]
    [0030] The main beam of the base structure is curved and reproduces the shape of the catch anchor groove. Likewise, the carriage is configured to insert the retainer into the retainer anchor slot.
    [0031]
    [0032] In the bearing seal assembly tool object of the invention, the fixing means of the base structure are fixed in the housings of the base structure positioning the base structure on the groove of the retainer anchor.
    [0033]
    [0034] In the bearing seal assembly tool object of the invention, the means for fixing the base structure to two connecting bolts, comprise two cylindrical bodies, where each cylindrical body comprises two parts of two different diameters, an internal recess, a thread internal, and an external thread in the part with the smallest diameter, where the internal thread is configured to be attached to the union bolts and the external thread serves as a support for a nut that fixes the base structure to each cylindrical body.
    [0035]
    [0036] In the bearing seal assembly tool object of the invention, the main beam comprises a plurality of lightings.
    [0037]
    [0038] In the bearing seal assembly tool object of the invention the main beam has another embodiment comprising a central hollow with a plurality of ribs passing through the central hollow.
    [0039]
    [0040] In the bearing seal assembly tool object of the invention, the means for fixing the base structure to two connecting bolts comprise two cylindrical bodies.
    [0041]
    [0042] Each cylindrical body comprises two parts of two different diameters, an internal recess, an internal thread, and an external thread in the part with the smallest diameter, where the internal thread is configured to be fixed to the union bolts and the external thread serves support for a nut that fixes the base structure to each cylindrical body.
    [0043]
    [0044] There is another alternative embodiment in which the fixing means comprise flanges that house magnets, such that the flanges surround the union bolts, and by means of an internal thread located in each housing, the base structure is fixed to the union bolts.
    [0045]
    [0046] In the previous embodiment, the tool comprises a mechanism for modifying the relative distance between the flanges, said mechanism being actuated by a screw.
    [0047]
    [0048] In the bearing seal assembly tool object of the invention, the carriage comprises three wheels, where two wheels are supported on one side of the main beam and the other wheel is supported on the other side of the main beam.
    [0049]
    [0050] In the bearing seal assembly tool, the carriage comprises a coupling with a roller configured to insert the seal into the seal anchor groove.
    [0051]
    [0052] In the bearing seal assembly tool object of the invention, the coupling rests on the carriage through a central axis that joins the coupling to the carriage, two lateral axes, on the sides of the central axis that are connected to the coupling by means of screws and supported on the carriage, two springs that provide the necessary force to insert the retainer into the retainer anchor slot, where the springs are configured to provide the force required to insert the retainer into the retainer anchor slot and the End shafts are configured to serve as a coupling support on the carriage.
    [0053]
    [0054] There is an embodiment in which the springs are located around the lateral axes, and another embodiment in which the springs are two independent pieces and are located between the lateral axes and the central axis.
    [0055]
    [0056] The bearing seal assembly tool object of the invention comprises carriage actuation means, which allow a controlled movement of the carriage along the base structure, so that, in this movement, the coupling introduces the seal in the retainer anchor groove.
    [0057] The carriage drive means, in the bearing seal assembly tool object of the invention, comprise, in one embodiment, a toothed belt with the following path that is fixed to the carriage by a first end, passes through a first toothed cylinder of its own carriage, passes through a second toothed cylinder placing in correspondence with a housing of the base structure, passes through a third toothed cylinder located in the carriage, passes through a compensation cylinder, passes through a fourth toothed cylinder, passes through a fifth toothed cylinder Located in correspondence with the other housing of the base structure, it passes through a sixth toothed cylinder located in the carriage, and is fixed to the carriage by a second end opposite to the first end.
    [0058]
    [0059] In the bearing seal assembly tool object of the invention, the ends of the toothed belt are fixed to the carriage by means of toothed fixing cylinders in contact with plates, such that a toothed belt is inserted between a fixed toothed cylinder and the plate. it is fixed by pressure.
    [0060]
    [0061] In the bearing seal assembly tool object of the invention, there are alternative embodiments of the carriage drive means. In one of those alternative embodiments, the carriage driving means comprise a spindle attached to the two ends of the base structure and to the carriage, such that a rotation of the spindle displaces the carriage along the base structure.
    [0062]
    [0063] In another alternative embodiment the trolley drive means comprise a cable attached to two pulleys located at the two ends of the base structure where the cable passes through the trolley and is attached to the two pulleys at the ends of the base structure, such that a rotation of the pulleys displaces the cable and the carriage.
    [0064]
    [0065] In another alternative embodiment, the trolley drive means comprise a cable attached to two spools located at the ends of the base structure, where the spools have the ability to rotate and wind or unwind the cable that moves the trolley to which it is attached.
    [0066]
    [0067] Regarding the tools known in the state of the art, the tool object of the invention has the following advantages:
    [0068] - It is capable of assembling seals in the axial direction, expanding the range of possible seal designs to be introduced.
    [0069] - It does not require the activation of the pitch rotation mechanism while operating, being safer for operators and being able to take advantage of scheduled machine maintenance.
    [0070] - It incorporates a spring system that limits the effort that the tool makes on the seal, mitigating possible damage to it.
    [0071]
    [0072] Brief description of the drawings
    [0073] To complement the description that will be made below and in order to help a better understanding of the characteristics of the invention, the present descriptive memory is accompanied by a set of drawings based on which the innovations and advantages of the device object of the invention.
    [0074]
    [0075] Figure 1 shows a perspective view of an embodiment of the seal assembly tool in turbine bearings object of the invention.
    [0076]
    [0077] Figure 2 shows a side view of the embodiment of the seal assembly tool in turbine bearings object of the invention of Figure 1.
    [0078]
    [0079] Figure 3 shows a perspective view of a different embodiment from that of Figure 1 of the seal assembly tool in turbine bearings object of the invention.
    [0080]
    [0081] Figure 4 shows a side view of the embodiment of the seal assembly tool in turbine bearings object of the invention of Figure 3.
    [0082]
    [0083] Figure 5 shows a plan view of the tool object of the invention showing the carriage displacement system with a detail of the belt fastening system to the carriage.
    [0084]
    [0085] Figure 6 shows a perspective view of the tool object of the invention, with the embodiment of the carriage driving means comprising a spindle.
    [0086]
    [0087] Figure 7 shows a perspective view of the tool object of the invention, with the embodiment of the drive means of the carriage that comprise a cable and two pulleys.
    [0088] Figure 8 shows a perspective view of the tool object of the invention, with the embodiment of the carriage driving means comprising a cable and two reels.
    [0089]
    [0090] The different numerical references that are reflected in the figures correspond to the following elements:
    [0091] 1. base structure,
    [0092] 2. cylindrical body,
    [0093] 3. internal emptying,
    [0094] 4. internal thread,
    [0095] 5. external thread,
    [0096] 6. nut,
    [0097] 7. main beam,
    [0098] 8. lightening,
    [0099] 9. accommodation,
    [0100] 10. central hole,
    [0101] 11. nerves,
    [0102] 12. car,
    [0103] 13. wheel,
    [0104] 14. coupling,
    [0105] 15. roller,
    [0106] 16. central axis,
    [0107] 17. dock,
    [0108] 18. lateral axis,
    [0109] 19. screw,
    [0110] 20. first toothed cylinder,
    [0111] 21. second toothed cylinder,
    [0112] 22. third toothed cylinder,
    [0113] 23. compensation cylinder,
    [0114] 24. fourth toothed cylinder,
    [0115] 25. fifth toothed cylinder,
    [0116] 26. sixth toothed cylinder,
    [0117] 27. toothed fixing cylinder,
    [0118] 28. deck,
    [0119] 29. timing belt,
    [0120] 30. tab,
    [0121] 31. fixing means screw,
    [0122] 32. spindle,
    [0123] 33. cable,
    [0124] 34. pulley,
    [0125] 35. reel,
    [0126] 36. internal thread, e
    [0127] 37. magnet.
    [0128]
    [0129] Detailed description of the invention
    [0130] A wind turbine structure, has at least one blade and at least one hub, in addition the bearings comprise an inner ring and an outer ring, in addition the bearing elements and the turbine elements are joined by a plurality of union bolts and Between the elements of the bearing and the elements of the turbine they are located a groove of anchorage of retainer.
    [0131]
    [0132] The bearing seal assembly tool object of the invention comprises a base structure (1) that reproduces the curvature of the seal anchor groove, and has means for fixing said base structure (1) to the connecting bolts, specifically to the part of the union bolts that protrudes from the outer ring.
    [0133]
    [0134] The fixing means in the preferred embodiment of the invention comprise two cylindrical bodies (2), such that each cylindrical body (2) has two parts of two different diameters, and also has an internal recess (3) and an internal thread (4) and an external thread (5) in the part with the smallest diameter, the internal thread (4) being the part that facilitates fixing to the union bolts and the external thread (5) serving as support for a nut (6 ) that fixes the base structure (1) to each cylindrical body (2).
    [0135]
    [0136] There are two embodiments of the base structure (1), the first embodiment of the base structure comprises:
    [0137] - a main beam (7) of curved shape, which reproduces the shape of the groove for anchoring the retainer,
    [0138] - a plurality of lightening (8), on the main beam (7),
    [0139] - two housings (9) at the ends of the main beam (7), such that a cylindrical body (2) is fixed to each housing (9), positioning the base structure (1) on the bearing in which it is going to mount the retainer.
    [0140] The second embodiment of the base structure (1) is very similar to the first, since it also comprises a main beam (7) with a curved shape and two housings (9) at the ends of the main beam (7), but instead of comprising a plurality of lightings (8), it comprises a central hollow (10) and a plurality of ribs (11) passing through the central hollow (10) that provide rigidity to the main beam (7).
    [0141]
    [0142] There is another alternative embodiment in which the fixing means comprise flanges (30) that house magnets (37), such that the flanges surround the union bolts, and by means of an internal thread (36) located in each housing (9) the base structure (1) is fixed to the connecting bolts.
    [0143]
    [0144] In the previous embodiment, the tool comprises a mechanism to modify the relative distance between the flanges (30), said mechanism being actuated by a screw (31).
    [0145] The main beam (7) serves as a guide for a carriage (12) that is in charge of introducing the seal in the corresponding slot.
    [0146]
    [0147] The carriage (12) in the preferred embodiment of the invention, comprises three wheels (13) that rest on the sides of the main beam (7) to move along said main beam (7), such that two wheels (13) are supported on one side of the main beam (7) and the other wheel (13) is supported on the opposite side of the main beam (7), constituting a system of three supports that moves through the space between the two sides of the main beam (7).
    [0148]
    [0149] The carriage (12) comprises a coupling (14) with a roller (15) which is the element that presses on the seal to insert it in the groove for anchoring the seal.
    [0150]
    [0151] The coupling (14) is supported and fixed to the carriage (12) through:
    [0152] - a central axis (16) connecting the coupling (14) to the carriage (12), and
    [0153] - two lateral axes (18), on the sides of the central axis (16) that are connected to the coupling (14) by means of screws (19) and are supported on the carriage (12),
    [0154] - two springs (17) around the lateral axes (18) that provide the necessary force to introduce the retainer into the retainer anchorage slot,
    [0155]
    [0156]
    [0157] There is another embodiment of the way in which the coupling (14) is supported and fixed to the carriage (12), in which the springs (17) are located instead of around the lateral axes (18), they are located between the central axis (16) and the lateral axes (18) as an independent part of the mentioned lateral axes (18).
    [0158]
    [0159] There are different embodiments of carriage drive means, which allow a controlled displacement of the carriage (12) to be carried out along the base structure (1), so that, in this displacement, the coupling (14) introduces the retainer in its slot.
    [0160]
    [0161] In the preferred embodiment of the tool object of the invention, the carriage (12) is driven by a toothed belt (29), the route of which is as follows:
    [0162] - by a first end it is fixed to the carriage itself (12),
    [0163] - it passes through a first toothed cylinder (20) of the carriage (12) itself,
    [0164] - corresponding to one end of the base structure (1), it passes through a second toothed cylinder (21),
    [0165] - it returns to the carriage (12) to contact a third toothed cylinder (22),
    [0166] - it then passes through a compensation cylinder (23), to repeat the same route to the opposite end of the base structure (1),
    [0167] - from the compensation cylinder (23) it passes to a fourth toothed cylinder (24), - it passes through a fifth toothed cylinder (25) corresponding to the other end of the base structure (1), to return to the carriage (12),
    [0168] - where it passes through a sixth toothed cylinder (26) and,
    [0169] - it is fixed by a second end opposite the first end to the carriage itself (12).
    [0170]
    [0171] The fixing of the ends of the toothed belt (29) to the carriage (12) is carried out by means of toothed fixing cylinders (27) in contact with plates (28) such that between a fixing toothed cylinder (27) and the plate (28 ) the toothed belt (29) is inserted and is fixed by pressure.
    [0172]
    [0173] The configuration of the third toothed cylinder (22), the compensation cylinder (23) and the fourth toothed cylinder (24), compensate for the change in length of the toothed belt (29) that the operation of the tool requires, since being a curved system, the drive requires different lengths of toothed belt (29).
    [0174] There are other embodiments of means for driving the carriage, among which are:
    [0175] - a spindle (32) attached to the two ends of the base structure (1) and to the carriage (12), so that the rotation of the spindle displaces the carriage (12) along the base structure (1).
    [0176] - a cable (33) attached to two pulleys (34) located at the two ends of the base structure (1), such that the cable passes through the carriage (12) and passes through the two pulleys (34) at the ends of the base structure (1), so that a rotation of the pulleys (34) displaces the cable (33), which in turn displaces the carriage (12); - a cable (33) attached to two reels (35) located at the ends of the base structure (1), so that the reels (35) rotate and wind or release the cable (33) around them, displacing the carriage (12) which is attached to the cable (33).
    权利要求:
    Claims (17)
    [1]
    1. Turbine bearing seal assembly tool, such that the bearing comprises an inner ring and an outer ring, and the turbine comprises at least one blade and at least one hub, where the bearing elements and the turbine elements they are joined by a plurality of connecting bolts and between the bearing elements and the turbine elements there is a seal anchor groove, characterized in that the tool comprises:
    - a base structure (1) comprising:
    - a main beam (7) of curved shape, which reproduces the shape of the retaining anchor groove, and
    - two housings (9) at the ends of the main beam (7),
    - means for fixing the base structure (1) to two connecting bolts,
    - a carriage (12) movable along the main beam (7), configured to introduce the retainer into the retainer anchorage slot,
    where the fixing means of the base structure (1) are fixed in the housings (9) of the base structure (1) by positioning the base structure (1) on the retainer anchoring groove.
    [2]
    2. Bearing seal assembly tool according to claim 1, characterized in that the main beam (7) comprises a plurality of lightening (8).
    [3]
    3. Bearing seal assembly tool according to claim 1, characterized in that the main beam (7) comprises a central hole (10) with a plurality of ribs (11) passing through the central hole (10).
    [4]
    4. Bearing seal assembly tool according to any of claims 1 to 3, characterized in that the means of fixing the base structure (1) to two connecting bolts comprise two cylindrical bodies (2), where each cylindrical body ( 2) comprises:
    - two parts of two different diameters,
    - an internal drain (3),
    - an internal thread (4), and
    - an external thread (5) in the part with the smallest diameter,
    where the internal thread (4) is configured to be fixed to the union bolts and the thread exterior (5) serves as support for a nut (6) that fixes the base structure (1) to each cylindrical body (2).
    [5]
    5. Bearing seal assembly tool according to any of claims 1 to 3, characterized in that each housing (9) comprises an internal thread (36), where the fixing means comprise flanges (30) configured to surround the bolts connection, such that the flanges (30) house magnets (37), and such that the internal thread (36) fixes the base structure (1) to the connection bolts.
    [6]
    6. Bearing seal assembly tool according to claim 5, characterized in that it comprises a mechanism for modifying the relative distance between the flanges (30), said mechanism being actuated by a screw (31).
    [7]
    7. carriage (12) comprises three wheels (13), where two wheels (13) are supported on one side of the main beam (7) and the other wheel (13) is supported on the other side of the main beam (7). ).
    [8]
    8. Bearing seal assembly tool according to any of claims 1 to 7, characterized in that the carriage (12) comprises a coupling (14) with a roller (15) configured to exert pressure on the seal and introduce said seal in the retainer anchor slot.
    [9]
    9. Bearing seal assembly tool according to claim 8, characterized in that the coupling (14) rests on the carriage (12) through:
    - a central axis (16) that connects the coupling (14) to the carriage (12),
    - two lateral axes (18), on the sides of the central axis (16) that are connected to the coupling (14) by means of screws (19) and are supported on the carriage (12),
    - two springs (17),
    where the springs (17) are configured to provide a push to the roller to introduce the retainer in the groove of the retainer anchor and the lateral shafts (18) are configured to support the coupling (14) on the carriage (12).
    [10]
    10. Bearing seal assembly tool according to claim 9, characterized in that the springs (17) are located around the lateral axes (18).
    [11]
    11. Bearing seal assembly tool according to claim 9, characterized in that the springs (17) are independent and are located between the lateral axes (18) and the central axis (16).
    [12]
    12. Bearing seal assembly tool according to any of claims 1 to 11, characterized in that it comprises carriage driving means, configured to carry out a controlled movement of the carriage (12) along the base structure (1) to insert the retainer into the retainer anchor slot.
    [13]
    13. Bearing seal assembly tool according to claim 12, characterized in that the carriage driving means comprise a toothed belt (29), with a path as follows:
    - it is fixed to the carriage (12) by a first end,
    - it passes through a first toothed cylinder (20) of the carriage (12) itself,
    - it passes through a second toothed cylinder (21) placing in correspondence with a housing (9) of the base structure (1),
    - it passes through a third toothed cylinder (22) located on the carriage (12),
    - it passes through a compensation cylinder (23),
    - it passes through a fourth toothed cylinder (24),
    - it passes through a fifth toothed cylinder (25) placing in correspondence with the other housing (9) of the base structure (1),
    - where it passes through a sixth toothed cylinder (26) located on the carriage (12), and - is fixed to the carriage (12) by a second end opposite to the first end.
    [14]
    14. Bearing seal assembly tool according to claim 13, characterized in that the ends of the toothed belt (29) are fixed to the carriage (12) by means of toothed fixing cylinders (27) in contact with plates (28), such that between a toothed fixing cylinder (27) and the plate (28) the toothed belt (29) is inserted and is fixed by pressure.
    [15]
    15. Bearing seal assembly tool according to claim 11, characterized in that the carriage driving means comprise a spindle (32) attached to the two ends of the base structure (1) and to the carriage (12), such that A rotation of the spindle (32) moves the carriage (12) along the base structure (1).
    1
    [16]
    16. Bearing seal assembly tool according to claim 11, characterized in that the carriage drive means comprise a cable (33) attached to two pulleys (34) located at the two ends of the base structure (1) where the cable (33) passes through the carriage (12) and joins the two pulleys (34) at the ends of the base structure (1), such that a rotation of the pulleys (34) displaces the cable (33) and the trolley (12).
    [17]
    17. Bearing seal assembly tool according to claim 11, characterized in that the carriage driving means comprise a cable (33) joined to two reels (35) located at the ends of the base structure (1), where the reels (35) have the ability to rotate and reel or unwind the cable (33) that moves the carriage (12) to which it is attached.
    1
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080104821A1|2006-11-02|2008-05-08|Ecotecnia, S.Coop.C.I|Device for fitting a seal|
    US20120292859A1|2011-05-19|2012-11-22|General Electric Company|Tool for adjusting seal|
    US20150098669A1|2013-09-27|2015-04-09|Aktiebolaget Skf|Rotative Assembly, Method For Dismounting A Sealing Element And Extraction Tool For Dismounting A Sealing Element|
    KR100934965B1|2009-07-17|2010-01-06|주식회사 신라정밀|Apparatus for inserting seal in slewing bearing|
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201830930A|ES2750877B2|2018-09-26|2018-09-26|TOOL FOR MOUNTING SEALS ON BEARINGS|ES201830930A| ES2750877B2|2018-09-26|2018-09-26|TOOL FOR MOUNTING SEALS ON BEARINGS|
    PCT/EP2019/074669| WO2020064394A1|2018-09-26|2019-09-16|Tool for assembling retainers in bearings|
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