Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G3/00—Resilient suspensions for a single wheel
  • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
  • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
  • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
  • B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G7/00—Pivoted suspension arms; Accessories thereof
  • B60G7/02—Attaching arms to sprung part of vehicle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2200/00—Indexing codes relating to suspension types
  • B60G2200/40—Indexing codes relating to the wheels in the suspensions
  • B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
  • B60G2204/10—Mounting of suspension elements
  • B60G2204/12—Mounting of springs or dampers
  • B60G2204/126—Mounting of pneumatic springs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
  • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
  • B60G2204/43—Fittings, brackets or knuckles
  • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
  • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
  • B60G2206/60—Subframe construction
  • B60G2206/602—Single transverse beam
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2300/00—Indexing codes relating to the type of vehicle
  • B60G2300/14—Buses
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2300/00—Indexing codes relating to the type of vehicle
  • B60G2300/38—Low or lowerable bed vehicles

Definitions

• the invention relates to an independent suspension with a plurality of wheel-guiding links, wherein an upper link is a transverse or semi-trailing arm and wherein the surface spanned by the hinge points of the upper transverse or oblique link at least partially intersects a radfedernde gas or hydraulic suspension.
• the present invention is based on the problem to develop an independent suspension with upper transverse or semi-trailing, in which a arranged on a vehicle body, a subframe or mounting frame storage of the upper transverse or semi-trailing arm is designed dimensionally stable and easy to assemble and easy to maintain without changing the Achsbauraumes ,
• the gas or Hydropneumatikfed- tion a bellows, which is arranged between a dimensionally stable top plate and a rolling piston.
• the top plate is rigidly arranged on the vehicle body, a mounting frame or a subframe. On the top plate, the vehicle body-side joints of the upper transverse or semi-trailing arm are supported.
• a gas or Hydropneumatikfederung is changed for an independent suspension so that parts of their wheel-guiding and wheel-carrying functions can take over.
• its top plate is designed in terms of their size and design so that it is part of the support structure of the upper link bearing.
• the top plate absorbs the upper damper bearing so that an additional chassis support point is saved on the vehicle body.
• Figure 1 commercial vehicle front axle with ladder frame
• Figure 2 as Figure 1, but without ladder frame
• Figure 3 gas spring strut with upper wishbone
• Figure 4 as Figure 3, but with dismantled gas spring strut and without upper wishbone
• Figure 5 longitudinal section through a gas spring damper leg
• FIG. 6 side view of a gas spring damper leg, reduced in size
• FIG. 7 Gas spring strut with a support pot carrying a mounting flange and link parts.
• FIG. 1 shows a high-beam axle fastened to a ladder frame as the front axle of a commercial vehicle with independent wheel suspension.
• the front axle is steered and not driven.
• the single independent suspension includes i.a. a lower trailing arm (51), an upper transverse link (52), a wheel carrier (57) and a gas spring damper leg (60).
• the semi-trailing arm (51) and the transverse link (52) of the front axle are articulated to a frame-like mounting frame (10).
• the mounting frame (10) itself is directly - so not on elastomer joints - bolted to the vehicle frame (5) or to the longitudinal beams (6).
• the mounting frame (10) consists of two eg parallel longitudinal members (11), two transverse members (20, 30), two fork-like support elements (35), two front (41) and two rear wishbone supports (45).
• the wheel rotation axis (2) in the construction position affects the longitudinal members (11) on its underside.
• Each side member (11) is below the nearest longitudinal spar (6).
• the front ends of the longitudinal members (11) are rigidly connected via the front (20) and the rear ends via the rear cross-beam (30).
• the longitudinal members (11) are welded to the transverse members (20, 30) - seen in plan view - to form an at least approximately rectangular frame.
• the front cross member (20) lies in front of the wheel rotation axis (2), while the rear (30) is behind her (2).
• the rear cross member (30) ends on both sides - just below the longitudinal bars (6) - each in a flange (32).
• the upwardly projecting fork-like support elements (35) are welded.
• the single support member (35) has a front (37) and a rear arm (38). Both arms (37, 38), which are at least approximately parallel, have such a distance from one another that a gas spring damper leg (60) with its bellows region fits with a clearance of several millimeters or centimeters, cf. FIG. 2.
• the foot-side flange (36) of the respective support member (35) has the rear arm (38) a shorter distance than the front (37). The difference is about one third of the total arm distance.
• the respective rear arm (38) engages positively in the respective rear wishbone carrier (45).
• the front Arms (37) are connected in the same way to the front wishbone supports (41).
• the arms (37, 38) and the wishbone support (41, 45) are welded together.
• the front wishbone support (41) are extended downwards and additionally encompass each of the nearest tubular side member (11).
• the lower, the longitudinal carrier (11) embracing end of the front transverse link carrier (41) is welded to the longitudinal member (11).
• the four transverse link carrier (41, 45) are fork-shaped at their upper ends - for receiving the vehicle body-side wishbone joints (54, 55), cf. Also figure 4.
• additional forked lugs (42, 46) are welded to the wishbone supports (41, 45).
• the vehicle body-side joints (54, 55) of the transverse link (52) have here, for example, a horizontal pivot axis (56), which is also oriented at least approximately parallel to the direction of travel (9).
• Below the joint area carry the per side wheel arranged in pairs wishbone support (54, 55) on the mutually facing surfaces mounting brackets (43, 47) for the storage of Gasfederdämpferbeins (60).
• the dimensionally stable mounting brackets (43, 47) have e.g. two holes each and a gas spring damper leg (60) oriented crescent-shaped contour.
• the crescent-shaped contour is to allow a possible positive engagement with the gas spring strut (60).
• the partially angularly shaped wishbone support (41, 45) has a plurality of bores (48) through which the mounting frame (10) on the longitudinal beams (6) of the lead frame (5) is screwed, see.
• FIG. 1 the partially angularly shaped wishbone support (41, 45) has a plurality of bores (48) through which the mounting frame (10) on the longitudinal beams (6) of the lead frame (5) is screwed, see.
• FIG. 1 the partially angularly shaped wishbone support (41, 45) has a plurality of bores (48) through which the mounting frame (10) on the longitudinal beams (6) of the lead frame (5) is screwed, see.
• FIG. 1 the partially angularly shaped wishbone support (41, 45) has a plurality of bores (48) through which the mounting frame (10) on the longitudinal beams (6) of the lead frame (5) is screwed, see.
• FIG. 1 the partially angularly shaped wishbone support (41, 45) has
• the front cross-beam (20) carries at its ends three attachment points.
• the most spatially located Attachment points are the front bearings (21) of the semi-trailing arm (51).
• the attachment points arranged in the upper region of the crossbeam (20) are the joints (22) for the articulation of leaf springs of an alternatively installable rigid axle.
• the fastening points lying laterally on the end faces of the front crossbeam (20) are angle-shaped adapters (23) for fastening an impact shock absorber, the so-called crash box.
• the rear bearings (31) of the lower oblique link (51) are arranged in the central region.
• a horizontal wheel center plane (3) lying - semi-trailing arms (51) of the chassis side of the wheel (57) is articulated.
• the latter is articulated via a vertically oriented Radangoarm (58) with the wheel carrier joint (53) of the upper arm (52) coupled.
• the gas spring strut (60) is installed between the lower trailing arm (51) and the upper control arm (52). Its center line (61) - measured in a vertical projection on a fictitious vertical vehicle transverse plane - tilted by 15 ... 20 degrees of angle, the two upper vehicle body-side pivot points of the
• Gas spring damper legs (60) of an axle are closer together than the corresponding lower, chassis-side pivot points.
• a projection of the center line (61) on a vertical vehicle longitudinal plane is directed against the vertical, e.g. inclined by 2-4 degrees, with the lower pivot points in the direction of travel (9) leading the upper.
• the air suspension (62) or the gas spring portion of the Gasfederdämpferbeins (60) is arranged in a space with play through the respective longitudinal spar (6), the corresponding forked like support element (35), the wishbone support (41, 45), the wishbone (52) and the Radyesarm (57) is limited.
• the gas spring strut (60) includes a shock absorber (81). From this is shown in Figures 5 and 6 on the one hand, the damper tube (85) with extension (87) and joint eye (88) and on the other hand, the piston rod (82) with its upper articulated support bearing (83). According to Figures 1 and 2, the joint eye (88) is mounted on the semi-trailing arm (51) in the vicinity of the lower wheel joint.
• the support bearing (83) rests in the form of a stiff head plate of the gas spring (62) designed as a support pot (63).
• the one-piece support pot (63) has a pot shape, which seems composed of a truncated cone shell and a cylinder jacket. He is e.g. as a cast iron part (GJS 400), as an aluminum casting, as a forged part or as a deep-drawn sheet metal part. In the cylinder barrel area, it has an externally encircling stiffening rib (71) in which e.g. four threaded holes (72) are arranged, see. FIG. 4. In the area of the bores (72), the rib (71) is widened for this purpose. In one in the mounting frame (10) built gas spring strut (60) is the rib (71) from below form and locks on the
• the support pot (63) has to receive the support bearing (83) has a central bore (69) and eg two annular webs (65, 66), one (66) inside and one (65) outside. At the annular webs (65, 66) of the elastomeric body (84) of the support bearing (83) is securely positioned. The elastomeric body (84) is screwed clamped on the piston rod end between two discs, which are held by a sleeve at a distance.
• an annular rubber buffer (68) arranged as a mechanical Federhubbegrenzung. He is held by another - the support pot (63) inside stiffening - annular web (67). At the rubber buffer (68), the stop plate (86) arranged at the upper end of the damper tube (85) comes into contact with a completely spring-loaded wheel (1).
• a spring plate (76) is welded to the damper tube (85).
• the latter carries a rolling piston (75) with e.g. cylindrical Belgabroll Scheme.
• a hose roll (77) is arranged between the rolling piston (75) and on the support pot (63).
• the latter is held on the rolling piston (75) and on the support pot (63) in each case by means of a clamping ring.
• corresponding circumferential beads are available.
• the bead (74) of the support pot (63) lies directly below the stiffening rib (71).
• the piston rod (82) of the shock absorber (81) serves as a straight guide for the gas suspension (62).
• the support pot (63) fulfills four independent functions.
• the first function is a stiffening of the bearing of the upper arm (52).
• the support pot (63) forms together with the transverse link supports (41, 45), the longitudinal member (11) and the support element (35) a particularly dimensionally rigid assembly whose torsional rigidity is additionally increased by the screw with the lead frame (5). Further, the support pot (63) receives the support bearing (83) of the shock absorber (81), so that its separate articulation on the vehicle body (5) is eliminated.
• the gas spring damper leg (60) in the auxiliary assembly frame (10) via the screw connection of the support pot (63) to the wishbone supports (41, 45) or via their attachment brackets (43, 47) the joint play of the joints (10). 54, 55).
• the reason of the previous Einsteller Strukturisses is due to the pressing of the elastomeric joints (54, 55) in the hinge eyes of the upper arm (52).
• the press-in position of the elastomeric joints (54, 55) is e.g. equipped with 0.75 mm tolerance. In the worst case, the bearing clearance can vary by 1.5 millimeters.
• the frame-side bearings are previously adjustable.
• the wishbone (52) is used with its elastomeric joints (54, 55) on the wishbone supports (41, 45) and then the distance between the wishbone supports (41, 45) - one wheel side - is varied so that the wishbone (52 ) is movable without jamming with minimal play.
• the support pot (63) is bolted to the wishbone supports.
• FIG. 7 shows a gas spring damper leg (60), which is bolted directly to the longitudinal spar (6) of the ladder frame (5).
• a support flange (64) is integrally formed or attached to the support pot (63).
• the support flange is located directly on the longitudinal spar (6).
• the receptacles for the vehicle body-side joints (54, 55) of the upper transverse link (52) are additionally arranged. This solution is conceivable if the independent suspension is arranged without mounting frame on the vehicle body.
• the driver-side longitudinal spar (6) is jacked up so far that the driver-side wheel (1) can be disassembled.
• the gas spring strut (60) is disconnected from the compressed air supply and vented.
• the oblique link side joint of the Gasfederdämpferbeins (60) on the semi-trailing arm (51) is released.
• the four in the mounting brackets (43, 47) of the wishbone support (41, 45) sitting screws are loosened from above and removed.
• the joint eye (88) in the direction of travel (9) is lifted forward over the outer tie rod (98) and then taken out forward and down.
• the new gas spring strut is mounted in reverse order. LIST OF REFERENCE NUMBERS
• Wheel Radfixsen center line Horizontal plane through (2) vehicle frame, vehicle body longitudinal beams of the ladder frame direction of travel

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vehicle Body Suspensions (AREA)
• Body Structure For Vehicles (AREA)
• Fluid-Damping Devices (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38171234

Family Applications (1)

Country Status (5)

Families Citing this family (7)

Citations (7)

Family Cites Families (8)

• 2006
  • 2006-03-01 DE DE102006009301A patent/DE102006009301A1/de not_active Withdrawn
• 2007
  • 2007-02-24 JP JP2008556694A patent/JP4758482B2/ja not_active Expired - Fee Related
  • 2007-02-24 DE DE502007003508T patent/DE502007003508D1/de active Active
  • 2007-02-24 WO PCT/EP2007/001612 patent/WO2007101569A1/de not_active Ceased
  • 2007-02-24 US US12/281,292 patent/US7758057B2/en not_active Expired - Fee Related
  • 2007-02-24 EP EP07722924A patent/EP1989068B1/de not_active Not-in-force

Patent Citations (7)

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