Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G9/00—Draw-gear
  • B61G9/12—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill

Definitions

• the invention relates to a connecting device for
• Such connecting devices are used to fasten components (e.g. short car bodies or
• the longitudinal direction here and in the rest of the application denotes the direction along the rails or the direction of movement of the rail vehicle.
• Transverse direction the directions perpendicular to the longitudinal direction.
• the distance reserved for mobility is not available as a longitudinal stroke for energy absorption.
• articulated trains have a separate energy absorber (NS Sprinter LT, Mireo) for each individual space between the car body segments, or partially (Talent 2, FLIRT) or completely (TGV) do without targeted energy absorption in the train set of the rail vehicle.
• the object is to provide a connecting device for connecting car bodies of a rail vehicle with improved energy absorption in the event of a collision
• a connecting device of the type mentioned at the beginning comprising:
• connection device with a car body housing of a car body, -
• the outer housing, the inner housing and the energy absorber are arranged substantially along a common longitudinal axis, and
• the connecting device is set up to tensile and compressive forces along the longitudinal axis
• the energy absorber is set up to irreversibly deform when a predetermined compressive force along the longitudinal axis is exceeded, so that the length of the connecting device is reduced along the longitudinal axis and the inner housing partially in the
• the car bodies of multi-unit rail vehicles can be connected to such a solution via an arrangement of the outer housing and the inner housing, with energy being irreversible in the event of a collision via the energy absorber
• predetermined compressive force response force
• Connection device shortened and absorbed by means of the force impressed on the energy absorber.
• the damage in the event of a collision can thus be limited to the connecting device, which significantly simplifies repair.
• Driving device is provided as a positive connection for the transmission of tensile forces between the inner housing and the outer housing.
• the driver device is preferably connected to the inner housing and the outer housing in a tensile manner, but is not connected in a pressure-resistant manner.
• the driving device can be designed as a rotationally symmetrical sleeve, which preferably runs in the transverse direction.
• the invention uses a design of an energy-absorbing connecting device in which the energy absorber, which itself can only transmit compressive forces, between
• Inner housing and outer housing preloaded is that A backlash-free system is guaranteed in the entire range of tensile and compressive forces that occur during normal operation.
• the inner housing and the outer housing can then be designed such that tensile forces can be transmitted between them in a form-fitting manner.
• the connecting device can also comprise additional elastic suspensions, the compressive forces below the
• the energy absorber preferably comprises one
• Push rod and the energy absorption sleeve are set up so that the push rod pushes into the energy absorption sleeve when the predetermined compressive force is exceeded and deforms it irreversibly.
• the push rod and the energy absorption sleeve can extend along the
• the energy absorption sleeve can have a deformation section and a lengthwise direction
• a pressure ring is arranged at one axial end of the pressure rod, which is when the
• the pressure ring can have a greater radial thickness than the energy absorption sleeve.
• Energy absorption cover can do this in one
• Deformation section have a smaller outer radius than in a back section.
• the connecting device can have a, preferably cylindrical, cavity in which the deformation section can be widened. While maintaining the principle of bracing, there are also other geometrical arrangements or other principles of operation of the
• Energy absorbers e.g. wrinkles or machining during irreversible deformation
• the pressure ring preferably has a conical shape
• the tensile forces acting on the connecting device can be diverted into pressure forces on the energy absorber via a cover connected (for example screwed) to the outer housing.
• the lid can be attached to the with several screws
• Energy absorption sleeve and the outer housing to be attached.
• a cover embodiments with a central single screw or nut for connection to the energy absorption sleeve and the outer housing are also possible.
• the entrainment device is at least partially in a load path of the tractive force transmission
• Connection device is arranged. In normal operation (under the influence of a tensile force) the connection of the
• the connecting device comprises functional surfaces for the positive transmission of tensile forces between the outer housing and the inner housing, the functional surfaces as half
• the functional surfaces for the positive transmission of tensile forces between the outer housing and the inner housing, the functional surfaces being designed as elongated holes in the outer housing and in the inner housing, and the driving device being guided in the transverse direction in both elongated holes.
• the functional surfaces can be arranged in the outer housing and the inner housing as elongated holes, which are dimensioned at least so long that the
• Driving device in the event of an irreversible deformation by half the nominal stroke of the energy absorber in the longitudinal direction can move.
• the functional surfaces are preferably arranged at the ends of the elongated holes. The functional surfaces thus tension the driving device in the starting position
• the object of the invention is also achieved by a
• Car body comprising a car body and at least one connected to the car body
• the car body can be a short car body or just a car body segment.
• connection device is preferably via the
• Driving device connected to the car body. The attachment of the car body to the
• Driving device can be form-fitting over a
• the rigid assignment of the car body attached to the driving device to one of the two car bodies connected by the energy absorber is eliminated.
• the car body can move between the adjacent car bodies regardless of the deformation force of the
• the invention allows the arrangement of the driving device for connection in the power flow of the bracing of the
• the invention allows the reliable implementation comparatively short and easy
• Figure 1 is a sectional view of an inventive
• Figure 3 is a sectional view of an inventive
• Figures 1 to 4 show the same embodiment of a connecting device 1 according to the invention.
• Figures 1 and 2 show the connecting device 1 in the extended position under train, that is, in the normal operation of a rail vehicle.
• Figures 3 and 4 show the connecting device 1 after the irreversible deformation of the energy absorber, ie
• the connecting device 1 comprises an outer housing 2, an inner housing 3 and one with the outer housing 2 and the
• Inner housing 3 connected energy absorber 4.
• the outer housing 2, the inner housing 3 and the energy absorber 4 are essentially arranged along a common longitudinal axis (here the vertical).
• the connecting device 1 is set up to transmit tensile and compressive forces along the longitudinal axis.
• the energy absorber 4 is set up for one
• the connecting device 1 can also additionally comprise elastic suspensions 5, the compressive forces below the
• the suspensions 5 are each designed as two elastic spring washers.
• Energy absorber 4 an energy absorption sleeve 6 and a push rod 7.
• Energy absorption sleeve 6 are set up in such a way that the pressure rod 7 is pushed into the energy absorption sleeve 6 when the predetermined pressure force is exceeded, and this pushes into it
• Energy absorption sleeve 6 can extend along the longitudinal axis and, when the connecting device 1 is in the idle state, can rest positively on facing end faces
• the energy absorption sleeve 6 comprises a radial expansion in which the push rod 7 rests.
• the energy absorption sleeve 6 comprises a deformation section 8 and a rear section 9 in the longitudinal direction, preferably only the deformation section 8 being set up by the push rod 7 for controlled, irreversible deformation.
• a pressure ring 10 which, when the pressure rod 7 is pushed into the energy absorption sleeve 6, expands the energy absorption sleeve 6 radially along the longitudinal axis (compare FIGS. 2 and 4).
• the pressure ring can be formed in one piece with the pressure rod 7 or can be connected to the pressure rod 7 in a form-fitting or integral manner. The pressure force can then be applied from the inner housing 3 to the pressure ring 10 via the pressure rod 7. This provides a constant braking force and energy absorption.
• the pressure ring 10 can have a greater radial thickness than the energy absorption sleeve 6.
• the connecting device 1 can have a longitudinally at the level of the deformation section 8 a, preferably cylindrical, cavity 11 in which the deformation section 8 can be widened.
• the cavity 11 can be in the radial direction between the
• Energy absorption sleeve 6 and the outer housing 2 can be arranged.
• the pressure ring 10 has a conical in the longitudinal direction
• the pressure ring 10 can in a controlled and uniform manner
• Axial ends of the energy absorber 4 and the outer housing 2 are connected to a common cover 12.
• the cover 12 can be fastened to the energy absorption sleeve 6 and the outer housing 2 with several screws.
• the connecting device 1 comprises a driving device 13 for connecting the connecting device 1 to a car body housing of a car body.
• Driving device 13 is provided as a positive connection for the transmission of tensile forces between the inner housing 3 and the outer housing 2.
• the driving device 13 is connected to the inner housing 3 and the outer housing 2 in a tensile manner, but is not connected in a pressure-resistant manner.
• Driving device 13 is designed here as a rotationally symmetrical sleeve, which preferably runs in the transverse direction perpendicular to the longitudinal direction. The attachment of the
• Connecting device 1 on a car body by means of the driving device 13 can be positively via a
• the connecting device 1 comprises functional surfaces for the positive transmission of tensile forces between the
• Functional surfaces are formed as elongated holes 14 in the outer housing 2 and in the inner housing 3.
• the driving device 13 is guided in both elongated holes 14 in the transverse direction.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vibration Dampers (AREA)
• Handcart (AREA)
• Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=67480168

Family Applications (1)

Country Status (7)

Citations (4)

Family Cites Families (5)

• 2018
  • 2018-08-17 DE DE102018213945.8A patent/DE102018213945A1/de not_active Ceased
• 2019
  • 2019-07-09 EP EP19746000.9A patent/EP3810482B1/de active Active
  • 2019-07-09 ES ES19746000T patent/ES2945743T3/es active Active
  • 2019-07-09 PL PL19746000.9T patent/PL3810482T3/pl unknown
  • 2019-07-09 RU RU2021106730U patent/RU205881U1/ru active
  • 2019-07-09 WO PCT/EP2019/068411 patent/WO2020035223A1/de unknown
  • 2019-07-09 CN CN201990000966.1U patent/CN215663440U/zh active Active

Patent Citations (4)

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