• 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:
    The invention relates to a Peltonrad with a wheel disc (1) and with separately made cups (2) which are releasably attached to the wheel disc (1), wherein the attachment by means of at least one screw (5). It is primarily characterized in that each cup (2) with at least one screw (5) which is perpendicular to the axis of rotation of the wheel disc (1) is fixed to the wheel disc (1) 5. As a result, both the wheel disc and the cup can be made very easily and inexpensively.
    公开号:AT518289A1
    申请号:T50110/2016
    申请日:2016-02-18
    公开日:2017-09-15
    发明作者:Lötscher Benno；Isler Pascal；Lais Stefan
    申请人:Andritz Hydro Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a Peltonrad with a wheel and with separately made cups, which are cast or made of solid and releasably secured to the wheel disc, wherein the attachment is effected by means of at least one screw.
    There are several different processes for producing Pelton wheels. An elaborate method is the working out of the Pelton cups from a full blank, whereby about 60 - 70% material is lost. In other methods, e.g. HIWELD or MICROGUSS (e.g., EP 960181) cups are welded to appropriately prepared wheel discs. Furthermore, has long been u.a. from GB 174,768 or CH 111442 known to attach individual cups by means of axial screws on corresponding shaped parts of a wheel disc. To be stable here but the cup must be provided with appropriate extensions through which the screws can be performed and the wheel must have corresponding extensions. The previous methods are very complex and costly because they u.a. require special constructions of welding or Anschraubeinrichtungen. In integral Pelton wheels, which are either machined from one piece or where the cups are welded by different methods, the erosion damage is usually repaired by welding and grinding. This is a great risk, especially in the highly loaded zone at the foot of the cups, since cracks can occur from here and, as a result, fractures can occur.
    The aim of the invention is therefore to provide a simple and cost-effective production for a Pelton runner, which also enables economical and safe maintenance.
    The invention is therefore characterized in that each cup is fastened to the wheel disc with at least one screw which is arranged perpendicular to the axis of rotation of the wheel disc. As a result, both the wheel disc and the cup can be made very easily and inexpensively.
    A favorable development of the invention is characterized in that the screw is biased. As a result, the forces occurring due to the rotation can be controlled particularly well without additional measures.
    An advantageous embodiment of the invention is characterized in that each cup is positively connected via shear bolts and / or Scherbüchsen with the wheel disc. Thus, the tangential forces can be absorbed from the water jets particularly well. Together with the preloaded screws, the dynamic loading of the screws can be kept at a very low level and the screws can be made from inexpensive material.
    An advantageous development of the invention is characterized in that the screw has a cover at its free end. So it can be protected from abrasive water, which extends the life.
    The invention will now be described by way of example with reference to the drawings, in which:
    1 is a 3D illustration of a wheel disc with mounted cups and the exploded view of a cup with inventive attachment,
    1 a an enlarged detail of FIG. 1,
    2 is a view of a wheel in the axial direction with mounted cups and cuts in the field of attachment,
    2 a an enlarged detail of FIG. 2,
    Fig. 3 is a view of a section of a wheel disc with mounted cups in the radial direction
    Fig. 4 is a view of the gland variant of the inside of the wheel disc
    Fig. 5 shows a view of combined cup units.
    1 shows a 3D representation of a wheel disc 1 of a Pelton wheel with mounted cups 2 and the exploded view of a cup 2 with attachment according to the invention. The screw 5 is guided through a corresponding bore of the cup 2, surrounded by a bushing 4 and screwed in a bore 8 of the wheel disc 1 under bias. In addition, shear bolts 3 are inserted into corresponding holes 9 of the wheel disc 1 and corresponding holes in the cup 2. As with all Pelton turbines, the water is injected through nozzles onto the cups 2. This water jet is split on the cups 2 in two parts. Both parts of the water steel follow the course of the inner surface of the cup 2 until the water leaves the cup again. Due to the change in direction of the water jet, an impulse force is exerted on the cup 2 or the impeller.
    This force is transmitted to the wheel disc 1 by the shear pins 3 and bushings 4. The prestressed screws 5 essentially carry the centrifugal forces of the Pelton cups 2 which are created by the rotation. A cover 6 is connected to the screw 5 by means of a screw 7 in order to protect the latter from abrasive water.
    Fig. 1 a shows an enlarged detail of Fig. 1, in which a part of the wheel disc 1, two cups 2 and another cup 2 with the fastening means screw 5, 4 socket, shear pin 3 and cover 6 with screw 7 can be seen.
    Fig. 2 shows a view of a wheel disc 1 in the axial direction with mounted cups 2 and sections in the region of the attachment. It can be seen again the wheel disc 1, a number of cups 2 and the example of two cups in different cutting plane, the screw 5 in the bore 8 with socket 4 and cover 6 with screw 7. In another cup 2, the cutting plane through the shear pin. 3 and hole 9 laid.
    The details are better seen in Fig. 2 a as an enlarged detail of FIG. 2. Flier can also be seen that the bushing 4 between the screw 5 and wheel disc 1 and cup 2 is arranged and thus absorbs the shear forces occurring at the contact surface of the wheel disc 1 and 2 cup. Similarly, the shear pins take 3 shear forces between wheel disc 1 and 2 cup.
    Fig. 3 shows a view of the cup 2 in the radial direction. When the upper complete cup 2 can be seen the two shear pins 3 and the cover 6 and mounting screw 7 on the screw 5 (not visible here). This arrangement is located on the lower side of the cup 2.
    By this type of attachment, it is also possible that individual cups that are worn by abrasion, can be replaced without dismantling the other cups. It is also possible in a simple way to replace the cups and use cups with different geometries according to changed hydraulic requirements. Due to the elimination of the previously structurally required extensions of the cup, the particularly high at these points
    Forces and abrasion are exposed, more robust cups can be used. The need for repair in the areas of high forces deleted.
    Fig. 4 shows the said construction with a mounted from the inside of the wheel disc 1 ago screw. The advantage of this variant is that the cup-side covers omitted and the screw can be very easily protected or sealed against abrasive particles and water.
    Fig. 5 shows a view of combined cup units. Flier two cups are combined into a cup unit. These cup units are each attached to the wheel disc 1 with only one screw 5. This type of arrangement represents an alternative to the previously discussed construction. This alternative combines the advantages described above with a reduced assembly time with respect to cup change or conversion to a modified hydraulic cup contour.
    权利要求:
    Claims (7)
    [1]
    claims
    1. Pelton wheel with a wheel disc and with separately made cups (2), which are cast or made of solid and releasably secured to the wheel disc (1), wherein the attachment by means of at least one screw (5), characterized in that each Cup (2) with at least one screw (5) which is perpendicular to the axis of rotation of the wheel disc (1), is attached to the wheel disc (1).
    [2]
    2. Pelton wheel according to claim 1, characterized in that the screw (5) is biased.
    [3]
    3. Pelton wheel according to claim 1 or 2, characterized in that each cup (2) via at least one Scherbüchse (4) with the wheel disc (1) is positively connected.
    [4]
    4. Pelton wheel according to one of claims 1 to 3, characterized in that each cup (2) via additional shear pin (3) with the wheel disc (1) is positively connected.
    [5]
    5. Pelton wheel according to one of claims 1 to 4, characterized in that the screw (5) at its free end a cover (6).
    [6]
    6. Pelton wheel according to one of claims 1 to 4, characterized in that the screw (5) from the inside, i. from the axial direction of the wheel disc (1) is screwed.
    [7]
    7. Pelton wheel according to one of claims 1 to 6, characterized in that two or more cups (2) are combined to form a respective cup unit and by means of a common screw (5) on the wheel disc (1) are attached.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3208457B1|2019-02-06|Pelton wheel
    DE20116649U1|2001-12-06|Bearings, especially rolling bearings
    EP1281836A2|2003-02-05|Turbomachine
    DE3702281C2|1991-10-24|
    EP0056171B1|1985-10-30|Fixing device for a tubine casing
    WO1999039097A1|1999-08-05|Method for producing a wear-endangered component of a turbo-machine
    EP0522336A1|1993-01-13|Rotor for pelton turbine and manufacture of same
    DE1208569B|1966-01-05|Grease-lubricated brake camshaft bearings for shoe brakes
    AT380078B|1986-04-10|PELTON WHEEL
    DE3446496A1|1986-07-10|Device for securing rail-bound travelling gear
    DE6934709U|1970-01-08|ROTARY MOWER
    DE911816C|1954-05-20|Paddle wheel with movable blades for ship propulsion
    DE4143378C2|1994-09-22|Pelton wheel
    DE429838C|1926-06-03|Impeller arrangement on turntables or transfer platforms
    DE897709C|1953-11-23|Runner for double-ended single-housing steam or gas turbines
    AT103746B|1926-07-10|Wing or wing surface for aircraft.
    DE720810C|1942-05-16|Impeller for a propeller turbine or pump
    CH242692A|1946-05-31|Centrifugal compressor for high stage pressure ratios.
    DE619215C|1935-09-25|Crankshaft for fork tedder
    DE7143514U|1974-08-29|Bolt connection
    DE202004017080U1|2005-01-27|Linked components for uncoupling elements in a supporting framework adjust different levels of rigidity through structural measures or force transmission or use of material
    DE1289433B|1969-02-13|Screw rotor for screw pumps or the like with hollow screw threads
    DE102012023617A1|2014-06-05|Airfoil for a water turbine
    CH383169A|1964-10-15|Device for fixing adjustable guide vanes
    DE3048436A1|1981-09-17|Wear-resistant centrifugal sludge pump - has freely rotatable assembly with pre-whirl blades at entry and deceleration blades at exit of bladed impeller
    同族专利:
    公开号 | 公开日
    ES2723574T3|2019-08-29|
    US10550821B2|2020-02-04|
    TR201906352T4|2019-05-21|
    EP3208457A1|2017-08-23|
    PE20171387A1|2017-09-15|
    US20170241396A1|2017-08-24|
    CL2017000404A1|2017-09-08|
    AT518289B1|2018-06-15|
    EP3208457B1|2019-02-06|
    CN107091263A|2017-08-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US617555A|1899-01-10|Frederick k |
    AT33591B|1906-04-09|1908-07-10|Daniel Hug|Jet wheel.|
    FR480562A|1915-12-27|1916-08-24|Societe Neyret Beylier Ducrest Et Cie|Fastening device for pelton turbine blades|
    US1361467A|1919-05-17|1920-12-07|Kincaid John|Impact and reaction water-wheel|
    AT96298B|1921-08-24|1924-03-10|Albin Kanatschnig|Free jet turbine.|
    US493239A|1893-03-14|Water-wheel |
    US599845A|1898-03-01|Water-wheel bucket |
    US391523A|1888-10-23|Bright |
    US607246A|1898-07-12|Momentum water-wheel bucket |
    US417865A|1889-12-24|Water-wheel |
    US576849A|1897-02-09|Water-wheel |
    US645221A|1899-07-01|1900-03-13|Tutthill Water Wheel Company|Water-wheel.|
    US817546A|1905-02-23|1906-04-10|Bertrand B Bush|Water-motor wheel.|
    US924544A|1908-02-14|1909-06-08|William R Eckart|Water-wheel-bucket attachment.|
    US1017618A|1908-11-16|1912-02-13|Seneca L Berry|Tangential-impulse water-wheel.|
    US1458943A|1918-07-10|1923-06-19|Westinghouse Electric & Mfg Co|Bushing|
    GB174768A|1920-11-08|1922-02-08|Paul Werner Seewer|Improvements in the construction of turbine wheels|
    US1459672A|1922-04-17|1923-06-19|Pelton Water Wheel Co|Runner construction for pelton wheels|
    FR570124A|1922-11-09|1924-04-24|Neyret Beylier & Piccard Picte|Pelton turbine blade locking device|
    CH111442A|1924-08-19|1925-09-01|Fulpius Edmond|Device for fixing blades for turbine wheels.|
    US2075952A|1935-09-14|1937-04-06|Ralph E Ogden|Expansion bolt|
    GB583291A|1944-10-16|1946-12-13|Boving And Company Ltd|Improvements relating to wedging the buckets of pelton wheels|
    US2935296A|1951-12-26|1960-05-03|Gen Motors Corp|Blade retaining means|
    US2953348A|1952-12-30|1960-09-20|Gen Motors Corp|Blade fastenings|
    US2900863A|1955-03-07|1959-08-25|Kwik Set Expansion Co|Expansion bolt and wedge with a cylindrical holding section|
    US3324953A|1964-10-29|1967-06-13|Airscrew Weyroc Ltd|Fan rotors|
    US3295826A|1966-04-08|1967-01-03|Gen Motors Corp|Blade lock|
    GB1187978A|1966-10-01|1970-04-15|Plessey Co Ltd|Improvements in or relating to Gas-Turbine Rotors.|
    GB1250485A|1968-04-29|1971-10-20|
    US3788763A|1972-11-01|1974-01-29|Gen Motors Corp|Variable vanes|
    AT394093B|1988-11-21|1992-01-27|Efg Turbinen Und Kraftwerksanl|PELTON WHEEL|
    US5292227A|1992-12-10|1994-03-08|General Electric Company|Turbine frame|
    GB2321252A|1997-01-16|1998-07-22|Reckitt & Colman Inc|Carpet cleaning compositions|
    FR2922967B1|2007-10-30|2014-04-18|Alstom Power Hydraulique|PELTON TURBINE WHEEL, PROCESS FOR PRODUCING THE SAME, AND PELTON TURBINE EQUIPPED WITH SUCH A WHEEL|
    JP2012127333A|2010-12-16|2012-07-05|Yamashita Tomomi|Pelton wheel|
    NO333946B1|2011-10-04|2013-10-28|Dynavec As|DRAGON CONNECTION FOR A TURBIN FLOWER WHEEL|
    US9175571B2|2012-03-19|2015-11-03|General Electric Company|Connecting system for metal components and CMC components, a turbine blade retaining system and a rotating component retaining system|JP2020029774A|2018-08-20|2020-02-27|Ntn株式会社|Water turbine blade attaching structure of hydraulic generating apparatus|
    CN112639282A|2018-08-20|2021-04-09|Ntn株式会社|Hydraulic power generation device's hydraulic turbine wing mounting structure and hydraulic power generation device|
    CN110185010B|2019-05-17|2021-05-25|天津天发总厂机电设备有限公司|Complete power generation device for recycling tail water of power station|
    CN110449761A|2019-07-16|2019-11-15|浙江富春江水电设备有限公司|A kind of impact runner 3D overlaying method and structure|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50110/2016A|AT518289B1|2016-02-18|2016-02-18|Pelton|ATA50110/2016A| AT518289B1|2016-02-18|2016-02-18|Pelton|
    EP16205343.3A| EP3208457B1|2016-02-18|2016-12-20|Pelton wheel|
    ES16205343T| ES2723574T3|2016-02-18|2016-12-20|Pelton wheel|
    TR2019/06352T| TR201906352T4|2016-02-18|2016-12-20|Pelton wheel.|
    CN201710079740.2A| CN107091263A|2016-02-18|2017-01-18|Bucket-type runner|
    US15/433,172| US10550821B2|2016-02-18|2017-02-15|Pelton runner|
    PE2017000224A| PE20171387A1|2016-02-18|2017-02-16|PELTON WHEEL|
    CL2017000404A| CL2017000404A1|2016-02-18|2017-02-17|Pelton wheel|
    [返回顶部]