• 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:
    In the case of a connecting element (1) for the articulated connection of a first machine part (2) to a second machine part (3), so that the first machine part (2) is arranged to be movable, in particular pivotable, about an axis (a) relative to the second machine part (3) the connecting element (1) comprises a bolt (4) which passes through the second machine part (3) and which is fastened to the first machine part (2), the bolt (4) has two opposing flats (at least in one axial end region) ( 5, 6), which are connected to one another via a bore (7), one of the flats (5) abutting a flat contact surface (8) of the first machine part (2) and the screw head (6) 9) of a fastening screw (10), which passes through the bore (7) and part of the first machine part (2) and is screwed to it.
    公开号:AT16650U1
    申请号:TGM208/2018U
    申请日:2018-12-27
    公开日:2020-04-15
    发明作者:Beuter Ron；Wied Andreas
    申请人:Sms Group Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to a connecting element for the articulated connection of a first machine part to a second machine part, so that the first machine part is arranged to be movable, in particular pivotable, about an axis relative to the second machine part, the connecting element comprising a bolt which holds the second Machine part penetrated and which is attached to the first machine part.
    In the prior art generic connecting elements are well known. Usually a cylindrically shaped bolt is pushed through a hole in a machine part; In the other machine part, two sections with respective bores are often formed in a fork-shaped component, so that the bolt can be pushed in alignment through the three bore sections in order to establish the articulated connection between the two machine parts.
    The bolt is then secured in the arrangement against axial displacement, for example by an axle holder or a split pin, in order to prevent unintentional loosening of the connection.
    In particular in harsh environmental conditions, as are typical for metallurgical plants and here in particular for rolling mills, problems arise when using the compounds mentioned. In particular, reference should be made to rolling mills in which there is a lot of scale, where there are high temperatures and where lubricants and coolants are used. As a result, the bolt connection can no longer be released after a while. Exposed areas that are accessible to water and steam (in particular annular gaps) are subject to corrosion on the one hand, and scale build-up can occur here, on the other hand, so that the connection can no longer be loosened without great effort. This results in particular from the fact that the connections are often used in inaccessible places and are therefore difficult to reach with a suitable dismantling tool. This makes maintenance of the system and the expansion of components very difficult.
    Another disadvantage is that a certain amount of play is usually required in generic known bolt connections to ensure favorable mounting conditions. If the bolt is pushed through a total of three bore sections, the individual games are added up, so that the overall installation play between the two machine parts is relatively high. However, a seat with little play is often advantageous. If the game becomes too large, the function of the connected components can be impaired. This is particularly evident when there is a swelling or oscillating load between the connected components. Here, for example, reference is made to piston-cylinder elements, where this is the case.
    The invention has for its object to develop a connecting element of the type mentioned so that it is possible, especially when used in metallurgical plants, to easily solve the connecting element even after long use in harsh environmental conditions. In particular, a connecting element is sought which creates a stable connection which is not dependent on the material pairing. The connection should be easy to release, especially for maintenance purposes.
    The solution to this problem by the invention is characterized in that the bolt has at least in its one axial end region two opposing flats which are connected to one another via a bore, one flattened against a flat contact surface of the first machine part and wherein on the other flattened part of the screw head of a fastening screw which passes through the bore and part of the first machine part and is screwed to it.
    The bolt preferably has two opposing flats in its two axial end regions, which are connected to one another via a bore.
    /8th
    AT 16 650 U1 2020-04-15 Austrian patent office
    It preferably has a cylindrical section between its two axial end regions.
    The term “articulated connection” in the sense of the present invention means that the components connected to one another via the articulated connection can be pivoted relative to one another, but do not necessarily have to be pivoted to one another. The linear movement of a cylinder, for example, does not necessarily mean that the cylinder swivels.
    Between a nut with which the fastening screw is fastened to the first machine part, and the first machine part, a sleeve is preferably arranged. This is in particular a burn-off sleeve; this can easily be removed using a welding torch.
    The first machine part can have a particularly L-shaped section, the flat contact surface being arranged on the section, in particular on one leg of the section.
    [0012] The machine parts are preferably part of a metallurgical plant. It is particularly thought that one machine part is part of a piston-cylinder element. This is in particular a piston rod and / or a cylinder housing. A piston-cylinder element is preferably fastened on both sides, that is to say both in the region of the piston rod and in the region of the cylinder housing, with the proposed connection to corresponding surrounding components.
    The bolt of the proposed connection is therefore not completely round, but flattened at least on one side, preferably on both sides. This makes it possible to mount the bolt with a screw connection, preferably including a burn-off sleeve. This connection can then be released very easily by burning it off with a welding torch. To reassemble, just replace the screws and burn-off sleeves. New bolts are not necessary.
    The proposed concept thus provides a robust bolt connection that can be used advantageously in a harsh environment, especially in a rolling mill.
    It is advantageous that the connection described can be solved relatively easily and with little effort for maintenance purposes.
    The proposed concept is particularly preferably used where the bolt is only loaded in one direction and the screw connection can be carried out so that it only has to absorb a small load.
    The bolt has one degree of freedom less than usual; this allows the relative movement in the bolt connection to be defined, similar to an axle holder. With conventional construction, an axle holder or a similar securing element is also required. In the case of the axle holder, however, this requires assembly with play, which therefore allows a slight movement around the axis of the bolt. The proposed solution advantageously does not require this.
    Overall, there is advantageously a lower overall game than in the previously known solutions.
    Preferred areas of application of the proposed connecting element are rolling mills and here in particular hot rolling mills, in which typically a high amount of scale occurs, where there are high temperatures and where lubricants and coolants are used, that is to say a generally corrosive, steam-laden environment.
    An exemplary embodiment of the invention is shown in the drawing. Show it:
    1 is a side view of part of a metallurgical plant with a connecting element, by means of which a housing of a piston-cylinder element is attached to a part of the plant,
    2/8
    AT 16 650 U1 2020-04-15 Austrian Patent Office [0022] FIG. 2 shows the arrangement according to FIG. 1 in perspective and FIG. 3 shows a bolt of the connecting element in perspective.
    In Figures 1 and 2, a connecting element 1 can be seen, which connects a first machine part (carrier element) with a second machine part in the form of the cylinder housing of a piston-cylinder element. The connection is articulated, d. H. the two machine parts 2 and 3 can pivot relative to one another about the axis a (which is perpendicular to the plane of the drawing in FIG. 1). For this purpose, a bolt 4 is used which - as can best be seen from FIG. 2 - penetrates the second machine part 3 and which is fastened to the first machine part 2 with its two axial end regions.
    The design of the bolt is best seen in FIG. 3. According to this, the bolt 4 has flattened portions 5 and 6 in its two axial end regions, which lie opposite one another, ie. H. form parallel surfaces. The area of the flats 5, 6 is connected to one another via a bore 7. The pin 4 has a cylindrical section 11 between the two axial end regions.
    On the first machine part 2, a contact surface 8 is formed which, like the flats 5 and 6 of the bolt 4, is flat.
    Accordingly, the bolt 4 with its two flats 5 in its two axial end regions can be applied to corresponding contact surfaces 8 of the first machine part 2.
    The bolt 4 and thus also the second machine part 3 are fastened to the first machine part 2 with two fastening screws 10. The screw head 9 of the fastening screw 10 lies against the flattened portion 6 of the bolt 4; the fastening screw 10 then passes through the bore 9 and a further (not shown) bore in the first machine part 2, in order to then exit with its threaded section from the first machine part 2, where the fastening screw 10 is fixed with a nut 12. As can be seen, however, a burn-off sleeve 13 is also mounted between the first machine part 2 and the nut 12, which can be easily removed later by means of a cutting torch in order to release the connection again.
    During assembly, the two fastening screws 10 are accordingly fastened with the nuts 12, so that the flattened portion 5 rests firmly on the contact surface 8.
    Later on during dismantling, the burning sleeve 13 can then be easily removed by means of a cutting torch in order to detach the individual parts of the connection from one another.
    [0031] This makes it easy to loosen the connecting element according to the rolling mill by burning off the burning sleeve by means of a welding torch, which results in better determinable maintenance periods or downtimes.
    Another advantage is a play-free seat of the bolt, at least on one of the two machine parts to be connected.
    The construction of the proposed connection is very simple and therefore inexpensive.
    Corrosion effects persist, but they no longer have the negative effects of previously known solutions. In particular, there is no crevice corrosion, since a flat surface of the bolt is pressed onto a flat counter surface of the other component.
    The proposed connecting element is specifically tailored to the environmental conditions that prevail in a rolling mill, in particular in a hot rolling mill. They are less susceptible to harsh conditions and in particular to aggressive water, heat, rust, baking and scale.
    Furthermore, the connection is suitable for transmitting large forces (provided that they only act in one direction).
    Thus, the proposed connecting element optimizes the rolling process because it does so
    3/8
    AT 16 650 U1 2020-04-15 Austrian Patent Office helps to reduce downtimes during maintenance and repair. With previously known solutions, this is much more complex than with the proposed concept. This applies in particular from the point that the connections in question are often in very inaccessible places. Then there is not the space to use larger dismantling tools.
    [0038] The connection can be released using the proposed connecting element in a simple manner by burning off the burning sleeve, which is easily possible with the aid of a cutting torch. Locations that are difficult to access can thus be easily reached and the connection can be released in a simple manner.
    4/8
    AT 16 650 U1 2020-04-15 Austrian patent office
    REFERENCE SIGN LIST:
    Connecting element first machine part (carrier element) second machine part (piston rod / cylinder housing)
    bolt
    Flattening
    Flattening
    drilling
    Contact surface
    Screw head
    Fixing screw cylindrical section of the bolt
    mother
    Sleeve
    axis
    权利要求:
    Claims (10)
    [1]
    1. connecting element (1) for the articulated connection of a first machine part (2) with a second machine part (3), so that the first machine part (2) relative to the second machine part (3) about an axis (a) movable, in particular pivotable, arranged The connecting element (1) comprises a bolt (4) which passes through the second machine part (3) and which is fastened to the first machine part (2), characterized in that the bolt (4) has two at least in one axial end region has opposing flats (5, 6) which are connected to one another via a bore (7), one flattening (5) resting on a flat contact surface (8) of the first machine part (2) and the other flattening (6 ) the screw head (9) rests on a fastening screw (10) which passes through the bore (7) and part of the first machine part (2) and is screwed to it.
    [2]
    2. Connecting element according to claim 1, characterized in that the bolt (4) in its two axial end regions each have two opposing flats (5, 6) which are connected to one another via a bore (7).
    [3]
    3. Connecting element according to claim 2, characterized in that the bolt (4) has a cylindrical section (11) between its two axial end regions.
    [4]
    4. Connecting element according to one of claims 1 to 3, characterized in that between a nut (12) with which the fastening screw (10) is fastened to the first machine part (2), and the first machine part (2), a sleeve (13) is arranged.
    [5]
    5. Connecting element according to claim 4, characterized in that the sleeve (13) is a burning sleeve.
    [6]
    6. Connecting element according to one of claims 1 to 5, characterized in that the first machine part (2) has an in particular L-shaped section, wherein the flat contact surface (8) is arranged on the section, in particular on one leg of the section .
    [7]
    7. Connecting element according to one of claims 1 to 6, characterized in that the machine parts (2, 3) are part of a metallurgical plant.
    [8]
    8. Connecting element according to claim 7, characterized in that the second machine part (3) is part of a piston-cylinder element.
    [9]
    9. Connecting element according to claim 8, characterized in that the second machine part (3) is a piston rod.
    [10]
    10. Connecting element according to claim 8, characterized in that the second machine part (3) is a cylinder housing.
    类似技术:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US968213A|1910-01-11|1910-08-23|Solon B Welcome|Wrist-pin.|
    EP1369535A1|2002-06-03|2003-12-10|Peter Dappen|Bucket excavator|
    DE102009026739A1|2009-06-04|2010-12-09|Zf Friedrichshafen Ag|Joint and / or bearing arrangement with an elastic intermediate layer|
    DE202012008490U1|2012-07-16|2012-09-24|Lang's Lights S.A.|Seal of spaced components|
    US20180001724A1|2015-01-30|2018-01-04|Volvo Truck Corporation|A bush pin, a bracket and a mounting assembly for a v-stay for a vehicle|
    US2865661A|1956-01-09|1958-12-23|Orenda Engines Ltd|Means for locking a removable coupling pin|
    DE3245513A1|1982-12-09|1984-06-14|Müller & Borggräfe KG, 5820 Gevelsberg|Device for suspending a load on adjacent rock anchors in mining and tunnelling|
    DE4214000C1|1992-04-29|1993-07-22|Man Gutehoffnungshuette Ag, 4200 Oberhausen, De|Reusable releasable connection device - used e.g. on heated vessels and components in smelting works|DE102019107315A1|2019-03-21|2020-09-24|Schwing Gmbh|Large manipulator|
    CN110466554B|2019-08-23|2020-09-25|中车青岛四方车辆研究所有限公司|Through passage connecting frame, through passage and rail train|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018200176.6A|DE102018200176A1|2018-01-08|2018-01-08|Connecting element for the articulated connection of a first machine part with a second machine part|
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