Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
  • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
  • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F3/00—Types of bogies
  • B61F3/16—Types of bogies with a separate axle for each wheel

Definitions

• the invention relates to the concept of a lightweight, elastic-resilient wheel pair with single wheeled vehicles, in particular for Schienen ⁇ is suitable.
• Conventional wheel sets have the task of transferring carrying, guiding, driving and braking forces from the vehicle to the track and vice versa and ensuring the tracking of rail vehicle undercarriages in the track channel of the track.
• the wheel bearings of the opposite wheels are rigidly connected to one another by rigid constructions such as wheel set shaft, idler gear set axle, idler gear set bridge (TALGO) or idler gear bracket (BUGATTI).
• rigid constructions such as wheel set shaft, idler gear set axle, idler gear set bridge (TALGO) or idler gear bracket (BUGATTI).
• TALGO idler gear set bridge
• BAGATTI idler gear bracket
• Light materials have the disadvantage that they almost always have lower strength than steel. They then have to be used in larger volumes in order to compensate for the specifically lower load-bearing capacity over large areas or resistance moments. If light materials have sufficient strength, they are either very expensive or not sufficiently wear-resistant, or both, e.g. with titanium, and therefore not suitable for practical use in wheel sets.
• the invention has for its object to provide a pair of wheels with individual wheels, which avoids the above disadvantages, adheres to the track dimension of the wheels as exactly as possible, significantly reduces the proportion of unsprung masses and can nevertheless be implemented with little effort.
• the new type of spring-wheel pair also performs essential functions of the chassis, such as load distribution from the trunnion to the wheels, suspension of the wheels relative to the load transfer from the body, transverse and longitudinal force support of the wheels relative to the body.
• the compact wheelset shaft is replaced by components that are no longer rotating, dissolved. At the same time, several functions are transferred to the components used.
• the progress achieved with the invention consists in particular in that the geometrical structure of the elements and their multiple functions make better use of the materials used and the construction as a whole is thus lighter.
• FIG. 1 shows a pair of spring wheels with leaf spring handlebars. The view from the front is shown.
• the wheels 1 are rotatably mounted on or in the wheel carriers 2.
• the wheel loads are transmitted from the wheel carriers 2 to the lower spring leaf link 3 and the upper spring leaf link 4.
• the ends of the spring leaf 5 rest on the lower spring leaf link 3 to dampen oscillatory movements. It is thereby achieved that relative movements occur during the compression and rebound between the spring leaf link 3 and the ends of the spring leaf 5, which withdraw energy from the movement.
• the spring leaves 3 and 4 and the spring leaf 5 are fastened to the chassis support 6, which in turn is connected to the car body via the spring 7 shown here as a helical spring. If the spring 7 is dispensed with, the chassis carrier 6 is directly a component of the car body.
• Fig. 2 shows a plan view of the spring leaf wheel pair.
• the outer wheels 1 and the wheel carriers 2 are connected to one another in the transverse direction by the triangular lower spring leaf link 3 which is symmetrical in the figure and the simple upper spring leaf link 4.
• the wheels 1 can be seen, which are connected to the chassis support 6 via the wheel supports 2 and the spring leaf links 3 and 4.
• the spring leaf links 3 and 4 are arranged so that their extensions beyond the wheels 1 intersect far outside the wheel planes at a point which is at the level of the top edge of the rail. It is thereby achieved that the track dimension of the pair of wheels changes only minimally when a wheel 1 is deflected. A similar effect can be achieved with the arrangement of the spring leaf links 3 and 4 shown in FIG. 4.
• Fig. 4 shows a pair of spring leaf wheels with inwardly inclined spring leaf links 3 and 4.
• the spring leaf links 3 and 4 are arranged so that the over O95 /
• a joint spring wheel pair can be seen in the view from the front.
• the wheel carriers 2, which carry the wheels 1 are connected in an articulated manner to the chassis carrier 10 by a lower link 8 and an upper link 9. Due to the position and arrangement of the links 8 and 9 shown as a principle, the wheels 1 can move relative to the undercarriage 10 in the vertical direction relatively without the horizontal distance of the wheels 1 changing noticeably.
• the springs 1 can dampen the wheels 1 with respect to the chassis support 10.
• Fig. ⁇ shows a pair of torsion spring wheels in plan view.
• the wheels 1 and wheel carrier 2 are fastened to wishbones 12, which in turn are each pivotably arranged about the longitudinal axis of the chassis carrier 13.
• the wishbones 12 interconnect the longitudinal torsion bar 14. The load moments resulting from the wheel loads are switched and compensated by the torsion bar 14. As a result, the chassis carrier 13 remains free at the moment and can accordingly be dimensioned easily.
• FIG. 7 shows another embodiment of a pair of torsion spring wheels.
• the wheel carrier 2 of the wheel 1 of one side of the wheel pair is guided by the lower control arm 15 and by the upper control arm 16 in the longitudinal, transverse and vertical directions; the lower wishbone 17 and the upper wishbone 18 take over the guidance of the wheel carrier 2 of the wheel 1 on the other side.
• the lower wishbones 15 and 17 and the upper wishbones 16 and 18 on both sides of the wheel pair are through the lower torsion bar 19 and the upper torsion bar 20 connected with each other.
• the torsion bars 19 and 20 are in turn pivotally mounted in the chassis frame 21 or directly in the main vehicle part.
• ERSArZBLATT (RULE 26) and torsion bars result in less track change and better torque support for the wheels.
• the exterior of the torsion spring wheel pair of FIG. 8 differs only slightly from that of FIG. 7.
• the wheel carriers 2 have cantilevers which point to the front and to the rear and which are located inside or outside on different sides of the wheels 2. This arrangement promises a movement of the wheels 2, which is excellent for tracking, relative to the chassis carrier 21.
• a further pair of torsion spring wheels is shown in perspective in FIG. 9.
• the wheel carriers 2 are pivotably supported in the chassis carrier 26 by lower wishbones 22, 24 and upper wishbone rods 23, 25.
• An outer end of the wishbone 22 is torsionally connected to the other outer end of the wishbone 24 via the torsion bar 27.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vehicle Body Suspensions (AREA)
• Springs (AREA)
• Platform Screen Doors And Railroad Systems (AREA)
• Axle Suspensions And Sidecars For Cycles (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6491471

Family Applications (1)

Country Status (6)

Family Cites Families (2)

• 1993
  • 1993-06-29 DE DE4321541A patent/DE4321541A1/de not_active Withdrawn
• 1994
  • 1994-06-29 EP EP94923701A patent/EP0706468B1/fr not_active Expired - Lifetime
  • 1994-06-29 ES ES94923701T patent/ES2108481T3/es not_active Expired - Lifetime
  • 1994-06-29 SK SK1659-95A patent/SK165995A3/sk unknown
  • 1994-06-29 DE DE59403573T patent/DE59403573D1/de not_active Expired - Fee Related
  • 1994-06-29 AT AT94923701T patent/ATE156076T1/de active
  • 1994-06-29 WO PCT/EP1994/002119 patent/WO1995001274A2/fr not_active Ceased

Non-Patent Citations (1)

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