• 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:
    Pneumatic switching device (100) for controlling a magnetic rail brake, comprising a cylinder (10) in which a piston element (12) is displaceably guided, wherein the piston element (12) is connected to a piston rod (13) which is connected to a free end (14). a height-adjustable connecting element (15), wherein in a region of the piston rod (13) outside of the cylinder (10) on the piston rod (13) at least one clamping element (17) is inserted, which is braced by a threaded connection such that a positive engagement is, with a backlash of the height-adjustable piston rod (13) is secured by a superimposed frictional connection.
    公开号:AT513555A1
    申请号:T80182013
    申请日:2012-07-03
    公开日:2014-05-15
    发明作者:Detlev Pake；Andreas Dr Mehlan；Udo Eickeler；Sebastian Montua
    申请人:Faiveley Transp Witten Gmbh；
    IPC主号:
    专利说明:

    ····························································································································································································
    Switching device for controlling a magnetic rail brake
    Description Technical area
    The invention relates to a pneumatic switching device for controlling a magnetic rail brake comprising a cylinder in which a piston element is displaceably guided, wherein the piston element is connected to a piston rod which comprises a height-adjustable connecting element at a free end.
    Such switching devices are used for pneumatic or electropneumatic actuation of a magnetic rail brake for rail vehicles by means of compressed air. A piston rod carries out a vertical movement with which the magnetic rail brake is to be actuated.
    These switching devices can be used in high-performance brakes of rail vehicles that use an additional magnetic rail brake. This magnetic rail brake is intended to be effective in particular during rapid braking and high vehicle speeds.
    A height adjustment of said switching device is used to compensate for wear on wheels and magnetic rail pole pieces. As a result of this height adjustment, within the framework of planned or unscheduled service intervals, an air gap of the magnetic rail brake, which is a decisive variable for adjusting the braking force, can be adjusted.
    For height-adjustable switching devices a backlash of an adjustable piston rod is desired. In addition, it must be ensured with the adjustment solution that no loosening or unintentional adjustment of a functional component arises.
    Prior Art 1/20 "···· · · · · · · · · · ······························· 2
    From DE 36 36 753 Al a Schnellbremsbeschleuniger with additional control for a magnetic rail brake is known. Here, a stepped piston is used in a control device which carries a slider at its upper end.
    Another arrangement for the electro-pneumatic control of a magnetic rail brake is shown and described in DE 41 28 403 A1. In this case, an operating piston equipped with a K-groove ring is used in a housing.
    An electropneumatic brake device of a rail vehicle is disclosed in WO 2005/110830 A1. This device comprises a piston rod, which is axially fixed to a piston diaphragm. The piston rod is provided at a free end with a connecting element which is connected to a rocker arm.
    A permanent magnetic rail brake according to the document DE 199 43 091 C2 has a height-adjustable magnetic carrier with an associated permanent magnet and on the underside of the magnet carrier a braking surface and further lifting means which engage on the one hand on the magnetic carrier and on the other hand at a support point. In order to enable the release of the permanent magnetic rail brake with a simple structure, the permanent magnet is mounted vertically adjustable relative to the braking surface on the magnetic carrier and coupled with a controllable lift device, which is on the other hand connected to the magnetic carrier.
    DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages
    The invention has for its object to provide a switching device of the type mentioned, which allows a continuous, play-free height or vertical adjustment, with a loosening or unintentional adjustment of a functional component to be prevented. 2/20 «···· · ♦ · · · · * * *» »# ·· ··· · · 3
    This object is achieved by a device having the features specified in the characterizing part of claim 1 in conjunction with its preamble features.
    The invention provides a backlash-free connection of the height-adjustable piston rod or the connecting element to the piston in a simple manner. In addition, an unwanted release of functional elements is created by the force and form-locking connection according to the invention. With this connection technology is practically a stepless height adjustment realized by positive engagement, which also creates a backlash by the superimposed, non-positive clamping connection.
    Further advantageous embodiments of the invention are characterized in the subclaims.
    In an advantageous development of the device according to the invention it is provided that the piston element (cylinder) is connected to a hollow shaft, in particular integrally connected, in which the piston rod is inserted, so that the piston rod can be screwed in and out by a thread and thereby rotatable is executed, so that the piston rod is height adjustable, wherein at least a portion of the piston rod carries an external thread and at least a portion of the hollow shaft has an internal thread. The cylinder then consists of a piston rod and a hollow shaft. The piston rod can be rotated relative to the hollow shaft and thus screwed in or out via the thread. This leads to a height adjustment of the magnetic rail brake connected to the piston rod.
    In a further advantageous embodiment of the device according to the invention it is provided that the hollow shaft is provided in the region outside the cylinder with an external thread, wherein a union nut on the external thread of the hollow shaft is screwed, that a clamping ring in the axial direction of the piston rod between the external thread of the hollow shaft and 3 ······································································································································································································································· Clamping ring is tightened by screwing the union nut. Through this clamping ring connection, the piston rod is secured against accidental rotation.
    In a further advantageous embodiment of the invention, positive locking elements and / or coatings are provided in the axial direction of the piston rod between the clamping ring and the hollow shaft, which are designed such that they dig when screwing the nut into radial functional surfaces of the hollow shaft. Each form-fitting element can be designed as a component, in particular as a hardened steel pin. Alternatively, each form-fitting element may comprise a microstructure, in particular be designed as a coated intermediate layer. There may also be a coating of a functional surface. For this purpose, micro hard, for example, in particular diamonds or carbides (SiC, WC) or the like may be present.
    In order to ensure a tension in the tangential direction, the clamping ring preferably has a radial slot.
    A particularly preferred development of the invention is characterized in that the clamping ring is provided with an inner mold which corresponds to an outer shape of the piston rod to prevent rotation of the clamping ring relative to the piston rod. The clamping ring has on an inner surface non-concentric form elements, which correspond to equivalent, non-concentric form elements of the piston rod, wherein the clamping ring is designed in particular with two flattened by 180 ° flattening, which correspond to two offset by 180 ° flattening of the piston rod to the Prevent twisting of the clamping ring.
    Best way to carry out the invention
    An embodiment will be explained in more detail with reference to the drawings, wherein further advantageous developments of the invention and advantages thereof are described. 4/20; %; 2 is a perspective view of a switching device according to the invention with a piston rod, in an adjustment position, a sectional illustration. FIG the switching device in the position shown in Figure 1, a perspective view of the switching device in which the piston rod is positively and non-positively fixed, a sectional view of the switching device in the position shown in Fig. 3, a perspective view of a portion of the switching device, in a detent region is to be seen in a detached position, another perspective view of the portion of the switching device in which the piston rod is drawn in a first point cut, another perspective view of the portion of the switching device, wherein the piston rod in a second position is drawn cut, a sectional view of the piston rod an enlarged view of a clamping ring area shown in Fig. 2 with a screwed union nut, an enlarged view of a threaded portion of the piston rod shown in Fig. 2, 5/20. .. r ........ I t% "·· # I ·· j» * * f · · · · · t »» ·
    11 is an enlarged view of a clamping ring area shown in Fig. 2 with a screwed union nut,
    12 is a very greatly enlarged view of a clamping ring area shown in Fig. 2 and Fig. 11 with the screwed union nut, and
    Fig. 13 is a functional diagram showing a connection of the switching device with a magnetic rail brake.
    In the figures, like parts are given the same reference numerals.
    1 shows an embodiment according to the invention of a switching device 100 for controlling a magnetic rail brake. The switching device 100 comprises a cylinder 10 with a housing 11, in which, as FIG. 2 shows, a piston element 12 is displaceably guided.
    The piston element 12 is connected to a piston rod 13. This is provided at a free end 14 with a height-adjustable connecting element 15. The connecting member 15 has a ball-like head provided with a fixing hole 16 to be connected to the magnetic rail brake by a connecting bolt or other connecting part.
    The connecting element 15 or the piston rod 13 is displaceable in the direction of arrow RX according to FIG. 2 along the axis X of the piston rod. in a region of the piston rod, at least one clamping element 17 is used outside of the cylinder 10 on the piston rod 13, which is clamped by a threaded connection such that a positive connection is given, with a backlash of the height-adjustable piston rod 13 is secured by a superposed frictional connection. 6/20 V.YJL 'Γ:. ! : »1: Mk:. • · · · · * ··· · · · ·
    As illustrated in FIG. 2, the piston element 12 (cylinder) is connected to a hollow shaft 18. The cylinder 10 consists of the piston rod 13 and the hollow shaft 18. The hollow shaft 18 is integrally connected to the piston member 12. The piston rod 13 is inserted into the hollow shaft 18, in such a way that the piston rod 13 can be screwed in and out by a thread. By rotating the hollow shaft 18, as shown in FIG. 10 by the double arrow D show, the piston rod 13 is thus adjustable in height. 10 shows an enlarged region, in which at least a portion of the piston rod 13 carries an external thread 20 and at least a portion of the hollow shaft 18 has an internal thread 21.
    It can be seen in FIG. 2 or in the enlargement according to FIG. 9 that the hollow shaft 18 is provided with an external thread 22 in the region outside the cylinder 10 or outside the housing 11. The device 100 has a union nut 23. This is screwed onto the external thread 22 of the hollow shaft 18. The clamping element 17 designed as a clamping ring 24 (FIG. 7) is arranged in the axial direction of the piston rod 13 between the external thread 22 of the hollow shaft 18 and the union nut 23. As FIGS. 4 and 11 show, the union nut 23 clamps the clamping ring 24 by screwing the union nut 23.
    As can be clearly seen in the enlargement of FIG. 9, in the axial direction of the piston rod 13 between the clamping ring 24 and the hollow shaft 18 form-fitting elements or components, in particular hardened steel pins 25 are provided, which are designed such that they are when screwing the Screw nut 23 in radial functional surfaces of the hollow shaft 18 dig.
    Alternatively or additionally, coatings may be present, which are also designed and arranged such that they dig when screwing the nut 23 in radial functional surfaces of the hollow shaft 18. Each form-fitting element may have a microstructure, which is embodied, for example, as a coated intermediate layer. Possible coating 7/20 i ··· «· · · · * *« «* ·» * · ··· ·· «· · w .. * -i» * · r ··· «·· · A functional surface 30, 31 with micro hard bodies, such as diamonds or carbides (FIG. 5).
    The clamping ring 24 has, as Figures 6 and 8 show, a radial slot 26. Thus, the clamping ring is held non-rotatably on the piston rod 13, this is provided with an inner shape which corresponds to an outer shape of the piston rod 13. The clamping ring 24 has on an inner surface non-concentric form elements which correspond to equivalent, non-concentric form elements of the piston rod 13. Preferably, two flattened portions 27 (FIG. 8) offset by 180 °, which correspond to two flattened portions 28 of the piston rod 13 offset by 180 °, in order to prevent the clamping ring 24 from rotating.
    13 shows a mounting of the switching device 100 on a magnetic rail brake 32. The connection of the switching device 100 with the magnetic rail brake 32 is achieved by the connecting element 15 and a bolt which interacts with the fastening bore 16. The invention achieves compensation for wear on wheels.
    The device 100 may also be referred to as a high-low cylinder. The example shown is a clamping ring connection of a height adjustment. In the high-low cylinder according to the invention used is the described clamping ring connection, which proves to be very suitable for use.
    The invention does not solve or unintentionally adjust a functional component. The present invention eliminates known failure mechanisms by the described combination of positive and non-positive locking, while maintaining the advantages of a play-free clamping connection.
    The invention is not restricted to this example, so the pneumatic drive shown in the figures can also be designed as an electropneumatic drive. The switching device described is thus used for pneumatic or electropneumatic actuation of the magnetic rail brake for rail vehicles by means of compressed air. However, a medium other than compressed air is also possible. 9/20 • · · · · · · · · ····· · * »· · * *« *. * V * β ··· »* · · ··· 10
    REFERENCE NUMBER LIST 100 Switching device 10 Cylinder 11 Housing 12 Piston element 13 Piston rod 14 End 15 Connecting element 16 Mounting hole 17 Clamping element 18 Hollow shaft 19 - 20 External thread (piston rod) 21 Internal thread (hollow shaft) 22 External thread 23 Union nut 24 Clamping ring 25 Steel pins 26 Slit 27 Flattening (ring) 28 Flattening (Rod) 30, 31 Functional surfaces 32 Magnetic rail brake 10/20
    权利要求:
    Claims (10)
    [1]
    • · f *. * • * · * * t * · • ·

    11. Claims 1. A pneumatic switching device (100) for controlling a magnetic rail brake, comprising a cylinder (10) in which a piston element (12) is displaceably guided, wherein the piston element (12) is connected to a piston rod (13) connected to a free-wheel End (14) comprises a height-adjustable connecting element (15), characterized in that in a region of the piston rod (13) outside of the cylinder (10) on the piston rod (13) at least one clamping element (17) is inserted, which by a threaded connection such is clamped that a positive engagement is given, with a backlash of the height-adjustable piston rod (13) is secured by a superimposed frictional connection.
    [2]
    2. Switching device according to claim 1, characterized in that the piston element (12) with a hollow shaft (18) is connected, in particular integrally connected, in which the piston rod (13) is insertable, so that the piston rod (13) by a thread can be screwed in and out and thereby rotatable, so that the piston rod (13) is adjustable in height, wherein at least a portion of the piston rod (13) carries an external thread (20) and at least a portion of the hollow shaft (18) has an internal thread (21 ) having.
    [3]
    3. Switching device according to claim 1 or 2, characterized in that the hollow shaft (18) in the region outside of the cylinder (10) is provided with an external thread (22), wherein a union nut (23) via the external thread (22) of the hollow shaft ( 18) can be screwed, that the clamping element (17) is designed as a clamping ring (24) that the clamping ring (24) in the axial direction of the piston rod (13) between the external thread (22) of the hollow shaft (18) and the union nut (23) is arranged, and that the union nut (23) biases the clamping ring (24) by screwing the union nut (23). 11/20 • · · · «IM» IM IM IM · · *. · ≫ &Quot; ······ I II I 12
    [4]
    4. Switching device according to claim 3, characterized in that in the axial direction of the piston rod (13) between the clamping ring (24) and the hollow shaft (18) positive locking elements and / or coatings are provided which are designed such that they are when screwing the Bolt the union nut (23) into radial functional surfaces of the hollow shaft (18).
    [5]
    5. Switching device according to claim 4, characterized in that each form-locking element is designed as a component, in particular as a hardened steel pin (25).
    [6]
    6. Switching device according to claim 4, characterized in that each form-fitting element comprises a microstructure, in particular as a coated intermediate layer is executed.
    [7]
    7. Switching device according to claim 4 or 6, characterized in that a coating of a functional surface, in particular with micro hard, in particular diamonds or carbides is present.
    [8]
    8. Switching device according to one of claims 3 to 7, characterized in that the clamping ring (24) has a radial slot (26).
    [9]
    9. Switching device according to one of claims 3 to 8, characterized in that the clamping ring (24) is provided with an inner shape which corresponds to an outer shape of the piston rod (13) to rotate the clamping ring (24) relative to the piston rod (13 ) to prevent.
    [10]
    10. Switching device according to claim 7, characterized in that the clamping ring (24) on an inner surface non-concentric form elements which correspond with equivalent, non-concentric form elements of the piston rod (13), wherein the clamping ring (24) in particular with two by 180 ° staggered flattenings (27) are performed, which are 12/20 • · · · «* · · · · * *« «t · · #« ··· «· * ♦. * 4 ··· * ··· ··· ......... 13 * with two offset by 180 ° flats (28) of the piston rod (13) correspond to prevent the rotation of the clamping ring (24) , 13/20
    类似技术:
    公开号 | 公开日 | 专利标题
    WO2010025880A1|2010-03-11|Horizontally and vertically adjustable bearing
    DE102008024314A1|2009-11-26|Conveyor belt has belt body, at which two guide rollers are held, and endless belt is guided through guide rollers, where guide rollers have fine adjustment with adjusting screw
    AT513555A1|2014-05-15|Switching device for controlling a magnetic rail brake
    DE102012211438B4|2016-02-18|Fastening device for attaching accessories to medical devices
    EP2978995A1|2016-02-03|Ball-bearing-supported attachment point
    EP2603396A1|2013-06-19|Vehicle seat having an adjusting device
    AT519652B1|2018-09-15|Sealing device and hydraulic piston with sealing device
    DE102007003470A1|2008-07-31|Bearing unit with adjustable friction torque to provide a braking function
    DE102014007055A1|2014-07-17|Device for tightening object e.g. metal workpiece against machine tool, has groove body inserted into T-groove-shaped recess in movable manner and arranged in rotatable manner around more than specific degrees
    DE19957939C2|2002-07-18|Electromagnetic brake device
    DE102012112362B3|2014-05-22|Valve with a fastening device
    CH713884B1|2022-01-14|System for tool-free attachment of an actuator to a valve flange and suitable actuator.
    DE10319139A1|2004-11-18|Method for securing a rotating workpiece table with profiled locking grips pressed into a correspondingly shaped braking groove around the outside of the table
    DE102012206176B4|2020-04-16|Brake bearings with reduced play
    DE2814764C2|1982-08-05|Method for assembling and adjusting a seat sealing ring consisting of a plurality of arcuate sealing ring parts in a housing of a throttle valve
    DE19935036C1|2001-02-08|Brake lining retaining spring at a disk brake is a spring wire with two coils at supports for the brake linings locked into notches at the brake carrier to carry large or additional brake linings
    DE102006018953A1|2007-10-25|Floating caliper brake
    DE102018103161A1|2019-08-14|Clamping device for clamping a work object
    DE102012110807B4|2014-08-21|Mechanical adjusting device
    DE102019106088A1|2020-09-17|Clamping system for a machine tool
    DE102019218301A1|2021-05-27|Connection system
    DE102017221644B4|2021-08-05|Leaf spring assembly for motor vehicles
    EP3165778B1|2020-01-01|Assembly for the connection of turboengine elements
    DE102013224479A1|2015-06-03|linear actuator
    AT408529B|2001-12-27|POSITIONING DEVICE FOR A WELDING TORCH
    同族专利:
    公开号 | 公开日
    DE202011050872U1|2012-11-09|
    HU4227U|2013-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2223417A1|1972-05-13|1973-11-22|Walterscheid Gmbh Jean|SCREW CONNECTION WITH SEAL RING|
    GB1467850A|1973-06-12|1977-03-23|Acec|Apparatus for braking a railway bogie at high speed|
    DE2361312A1|1973-12-08|1975-06-12|Knorr Bremse Gmbh|DEVICE FOR HANGING RAIL BRAKE MAGNETS|
    EP0658715A1|1993-12-16|1995-06-21|Gressel AG|Flat-face threaded tube connector|
    EP0982216A2|1998-08-26|2000-03-01|Fluid Power Design Limited|Rail vehicle emergency braking system|
    EP1145929A2|2000-04-14|2001-10-17|Knorr-Bremse Systeme für Schienenfahrzeuge GmbH|Actuator for rail vehicle brakes|
    DD255243A3|1986-01-02|1988-03-30|Berliner Bremsenwerk Veb|QUICK-BRAKE ACCELERATOR WITH ADDITIONAL CONTROL FOR MAGNETIC RAIL BRAKE|
    DE4128403C2|1991-08-23|1996-12-19|Knorr Bremse Ag|Arrangement for the electro-pneumatic control of a magnetic rail brake|
    DE19943091C2|1999-09-09|2001-08-09|Daimler Chrysler Ag|Permanent magnetic rail brake|
    DE102004024462A1|2004-05-14|2005-12-08|Knorr-Bremse Systeme für Schienenfahrzeuge GmbH|Electropneumatic brake device of a rail vehicle with continuous control range|BR112015025884A2|2013-04-12|2017-07-25|Wabtec Holding Corp|brake disc, and brake assembly|
    US10619689B2|2016-12-12|2020-04-14|Westinghouse Air Brake Technologies Corporation|Ventilated brake disc|
    法律状态:
    2016-12-15| REJ| Rejection|Effective date: 20161215 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE201120050872|DE202011050872U1|2011-08-01|2011-08-01|Switching device for controlling a magnetic rail brake|
    [返回顶部]