• 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 frame of the freight wagon bogie is made of aluminum alloy and consists of two longitudinal beams (1 and 2) and a crossbeam (3), which are firmly connected to each other by welds or riveted joints, with the longitudinal beams (1 and 2) and the crossbeam (3) being connected by Welding of cast, welded and drawn parts are produced, with brake carriers (4) being present at the ends of the cross member (3) at the side members (1 and 2).
    公开号:AT17327U1
    申请号:TGM50208/2020U
    申请日:2020-10-22
    公开日:2021-12-15
    发明作者:
    申请人:Tatravagonka As；
    IPC主号:
    专利说明:

    description
    The technical solution concerns the frame of a goods wagon bogie, which is made of aluminum alloys.
    The Y25 bogie is currently the industrially most used bogie for freight cars in Europe (also used in other countries of the world). The current trend in Europe leads to innovations aimed primarily at reducing the tare weight of freight wagons (including bogies), reducing noise and improving drivability.
    Several new types of bogies for freight cars with improved driving properties and noise reduction measures are currently being tested in Europe (e.g. TVP NG-DBS, DRRS, RC25). However, none of them bring significant innovations in the field of reducing the dead weight of the bogie. The biggest advantage of the Y25 series bogie is its light weight, simplicity and easy maintenance that can be carried out in most repair shops. The bogie is checked by long-term operation. The other advantage is that from the point of view of noise reduction, all the measures by which bogies are designed in Europe (quiet wheelsets, covers...) are also applicable to the Y25 bogie. The Y25 bogie and its versions will therefore be the dominant bogies for rail freight transport in Europe for a long time to come.
    Most components for the manufacture of the Y25 bogie are made from semi-finished products using laser and plasma torches. Laser and plasma technology makes it possible to create a bevel for subsequent welding operations directly during the flame cutting of the component. If necessary from the point of view of the accuracy and shape of the surfaces, the machining and forming operations follow on the presses in dies or in press brakes, where the components take the desired shape and size.
    The bogie frame of the Y25 type consists of two main subassemblies, namely the cross member and the longitudinal member. These are assembled from individual components and stapled in assembly jigs, followed by welding. The individual sub-assemblies are then assembled and each completed bogie frame is inspected. The frame then goes to the surface treatment. A complete brake is mounted in a special jig on a surface treated and dried bogie frame. The bogie frame with the brake can then be placed on the finished wheel set axles when the roller bearings have been mounted on the wheel sets and the bearing housing has been put on. Finally, the sliding insert of the ball pivot is pressed.
    Currently, Y25 series bogie frames are manufactured from standard carbon steels, mostly S355 grade, or from higher strength steels (HSS). The frames of the Y25 bogie series are manufactured in two versions, a version with a head and a version without a head.
    Each version has several variants of carriers for hanging different types of brakes - for a two-sided pad brake, for a one-sided pad brake, for a disc brake. Optimizing the dead weight of the Y25 series bogie frames using standard carbon steels has reached its physical limits and there is no further potential for its significant reductions.
    These cited deficiencies in the prior art are eliminated by the technical solution described in this utility model, the main object of which is to replace a steel bogie frame with an aluminum alloy bogie frame. Aluminum alloys are distinguished by up to 3 times less weight than steel, do not require surface treatment for normal operating conditions, weldability is similar to weldability of steels, at low temperatures they are not
    prone to brittle fracture, their properties improve with decreasing temperature. The suitability of using aluminum alloys for supporting structures has been proven through experience over the last 60 years. The use of aluminum alloys for the Y25-series bogie frames and other sub-assemblies of the Y25-series bogies offers an interesting potential for reducing the dead weight of the frames as well as the bogies.
    The bogie frame is made of aluminum alloy and consists of two longitudinal beams and a cross member, which are firmly connected to each other by riveted joints. The side members and the cross member are made by welding cast, welded and drawn parts. The frame is equipped with brake carriers for different types of brakes (lever, compact, disc brakes). The functional dimensions of the frame are identical to the Y25 frame, suitable for the installation of other standard sub-assemblies of the Y25 bogie (wheel set, brake, connection to the carriage...).
    The aluminum alloy bogie frame is made by welding components or by connecting them with riveted joints or by combining these two technologies. The torsionally rigid longitudinal member of the bogie frame contains an aluminum alloy axle holder guide for the wheelset. The middle part of the torsionally flexible cross member contains the lower part of the ball stud as an integral part. The torsionally flexible cross member is cast as a whole or welded from several parts in such a way that the weld seams are outside the areas with the highest stress.
    The solution enables the further reduction of the dead weight of the bogie frame of the Y25 series and thus also of the bogie itself and the car. The reduction in dead weight brings with it an increase in transport weight and an increase in transport efficiency. Aluminum alloys do not require surface treatment for normal operating conditions, which contributes to reducing emissions in the bogie manufacturing technological process. Ultimately, this is a solution that represents an important measure for achieving the goals of the Paris climate agreement of December 12, 2015.
    In the accompanying figure, the frame of the freight car bogie is shown.
    The aluminum alloy bogie frame is made by welding components or by connecting them with riveted joints or by combining these two technologies. Torsion-resistant longitudinal member of the bogie frame contains an axle holder guide for the wheelset made as an aluminum alloy casting. The middle part of the torsionally flexible cross member contains the lower part of the ball stud as an integral part. The torsionally flexible cross member is cast as a whole or welded from several parts in such a way that the weld seams are outside the areas with the highest stress.
    The bogie frame is made of an aluminum alloy and consists of two longitudinal members 1, 2 and a cross member 3, which are firmly connected to each other by welds or rivets. The side members 1, 2 and the cross member 3 are made by welding cast, welded and drawn parts. The frame is equipped with 4 brake carriers for different brake types (lever, compact, disc brake). The functional dimensions of the frame are identical to the Y25 frame, suitable for the installation of other standard sub-assemblies of the Y25 bogie (wheel set, brake, connection to the carriage...).
    权利要求:
    Claims (1)
    [1]
    1. Frame of a freight wagon bogie, characterized in that it is made of an aluminum alloy and consists of two longitudinal members (1 and 2) and a cross member (3), which are firmly connected to one another by welds or riveted joints, with longitudinal members (1 and 2) and the cross member (3) is made by welding cast, welded and drawn parts, with brake supports (4) being present at the ends of the cross member (3) near the longitudinal members (1 and 2).
    1 sheet of drawings
    类似技术:
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    DE2616184C3|1979-05-23|Process for producing a welded joint and workpiece produced according to the process
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    同族专利:
    公开号 | 公开日
    SK9185Y1|2021-06-09|
    SK501002020U1|2021-02-10|
    DE202020106002U1|2020-10-29|
    RO202000051U2|2021-08-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5653177A|1994-05-30|1997-08-05|Gec Alsthom Transport Sa|Bogie frame|
    JP2006193129A|2004-12-16|2006-07-27|Hitachi Ltd|Method for manufacturing truck frame for rolling stock, and truck frame|
    KR20120050294A|2010-11-10|2012-05-18|한국철도기술연구원|Composite bogie frame with metal structure for air reservoir|
    JP2015030410A|2013-08-05|2015-02-16|株式会社日立製作所|Manufacturing method of bogie frame for railway vehicle|
    CN111511626A|2017-12-18|2020-08-07|L·托尼|Bogie frame for aluminum-cast rail vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SK50100-2020U|SK9185Y1|2020-09-28|2020-09-28|Frame of freight railway bogie|
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