DE8623590U1 - Compactors for compacting and / or smoothing road surfaces - Google Patents

Description

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- 4593 -

Scales for compacting and / or smoothing road surfaces

The invention relates to a ballast for compacting and / or smoothing
Road surfaces according to the preamble of claim 1.

Such compactors, ie those consisting of a tractor and a
Roller aggregate or tandem rollers are used in road construction for earthworks and

in the production of asphalt pavements, especially for compacting and also |

used for smoothing. Here it is known the roller framer? commuting with 1

to be connected to the chassis via a joint. However, this joint is- I

maintenance-intensive. f

The object of the invention is therefore to provide a roller train of the type mentioned at the beginning

to create, in which the joint is robust and essentially maintenance-free

is formed. |

This task is accomplished according to the characterizing part of claim 1

solves »I

Further refinements of the invention can be found in the following description and |

to be found in the subclaims. I.

The invention will now be described with reference to the DAR in the accompanying figures ^like embodiment asked.

Fig. 1 shows a side view of a two-axle roller train for compaction and the ^like

Smoothing road surfaces.

Fig. 2 shows a detail and section of a joint for the compactor from \

Fig. 1. I.

Fig. 3 shows a detail and partially in section a vibration damping for the joint of the single drum roller.

Fig. I shows a two-axle roller train for compacting and smoothing Stralienbellagen with a chassis 1, the rubber-tyred rear drive wheel | which has 2 on a drive axle 3 which is drivingly coupled to a drive motor which is arranged under a hood 4 of the chassis 1. Further, located on the chassis 1, a cab 5, with a \ steering wheel 6, which is coupled to an articulation 7 j to an RN in a Rah <- "r" Q Annan v * f \ "λτλ l / i NWA + ί nnriJa 1 · Ϊλ Ω / 1 ·% i λ w »mi 4 * λι nAtn s * 1 ■« * t * 4 · s * p% D ·% η / 4 · * st s% siirv / Ysvvtii-.

high \ j ui lycu lunc uc liui uuiuiunui £ .c J / \ iiici im υ üiiici y ι α υ uci ι uui ι vj u yc uuoyci u - st) to direct. For this purpose, a cross member 10 of the frame 8 is connected to the articulated joint 7. Underneath the driver's cab 5, the chassis 1 has a joint fork 11 which opens in the forward direction and the upper leg 12 of which receives a cylinder 13 screwed to it, in the otherwise closed upper end wall of which an oil-infusing screw (not shown) is screwed. The interior of the cylinder 13 is used to hold an oil supply. Between | (A vertical pivot pin 15 is mounted on the underside of the cylinder 13 and the lower leg 14 of the joint fork 11 | and is coupled to the steering device for rotating about its vertical axis Plates 16, which are connected at the end by a bearing plate 17, fastened via screws 18. In the vertical pivot pin 15 on the one hand and in the bearing plate 17 on the other hand, a horizontal pivot pin 19 connected to the cross member 10 is mounted.

^ The two pivot pins 15, 19 are supported on both sides by self-aligning plain bearings, each consisting of an outer bearing ring 20 with a spherical bearing surface

21 and a corresponding inner bearing ring 22 exist. The outer bearing ring 20 sits in a bearing seat 23 of the supporting part (in the case of the bearing shown in FIG. 2, the bearing plate 17 and for the other bearing points the cylinder 13 or the lower leg 14 or the pivot pin 15), which at the same time has a pocket 24 between the supporting part and the bearing ring 20. The bearing receptacle 23, which is stepped in diameter, also forms adjacent to the pivot pin 19 or 15 a support for a mechanical seal, the pivot pin 19 or 15 being correspondingly deep and wide has frontal annular pocket 25. Two metal rings 26, which are L-shaped in section, are spaced apart from a pin-shaped, inner bearing ring

22 supporting extension 2! 7 of the pivot pin 19 or 15 in the area of the bearing

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recording 23 and the pocket 25 are arranged in mirror image to each other and held in sealing engagement by sealing rings 28 made of elastic material, which are used to axially bias the metal rings 26 and under static friction in the bearing receptacle 23 and the pocket 25 sit.

ί From the inside of the cylinder 13 leads a central bore through the vertical ι pivot pin 15, which opens at its lower end in the pocket 24 of the lower leg 14 and through the pocket 24 in its middle area, \ where the horizontal pivot pin 19 is mounted , extends. Likewise, a central rating c? uurcn UEN ιιοπζοπυαιθπ GeienKZäpien \ u UNU munucu uSiuseitig 15 in the pockets 24 in the bearing plate 17 and the hinge pin from \ the two central holes 29 leads each have a bore 30 in the Be-Q area of the pocket 25, the respective one of the mechanical seal is surrounded. In addition, the bearing surface 21 of the outer bearing ring 20 (or of the inner bearing ring 22) is provided with lubrication grooves 31 arranged in a network. This results in a maintenance-free, automatically relubricating bearing of the pivot pins 15, 19 with an integrated lubricant supply, which is very robust according to the intended use, especially since the mechanical seals are insensitive to dirt. In addition, there is the possibility of circulating lubrication if the lubrication system is connected to a lubricant circuit. In any case, only one common lubricant supply is required for all bearings. The bearing receptacles 23 can be processed before the joint points are welded together, since possible errors and axial misalignments are recorded by the spherical bearing.

If necessary, a bore 33 closed by means of a screw 32 lead through the supporting part 17 into the bearing seat 23 adjacent to the mechanical seal.

Between the bearing plate 17 and the end faces of the plates 16 can be divided executed peeling plates 34, via which a play setting or a play readjustment is made possible without dismantling the articulated joint 7. Corresponding shuttering plates can be placed between the upper end wall of the cylinder 13 and the upper leg 12 are arranged.

On the underside of the lower plate 16 is a support plate by means of screws 35 36 arranged, which extends transversely to the longitudinal direction of the roller train and at each end carries a damping spring 37, which in the illustrated embodiment

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I example as a rubber buffer with a profiled, compressing

} of these are formed without the risk of cracking allowing bore 38 »with

I connected by means of anchoring rings 39 screwed to the carrier plate 36

I am. On the cross member 10, two stops 40 are provided on the underside> the dit

Pivoting movement uer roller 9 about the axis of. Gelankzapfens 1.9 after both Limit pages to, for example, 10 °.

The damping springs 37 reduce the natural frequency of the transverse oscillation
Roller 9, so that the installation of short-wave faults or waves in the road surface can be carried out in ¹ .

Instead of the damping springs 37, it is also possible to use damping cylinders, shock absorbers (f) fer, friction damper or the like. insert.

Claims (12)

Expectations 1. Compactor for compacting and / or smoothing road surfaces with a Chassis with an axle coupled to a drive motor and with a steerable vibration roller connected to the chassis via a joint receiving frame, the hinge having a vertical hinge pin received by a hinge fork, characterized in that the joint (7) is an articulated pendulum joint whose vertical pivot pin T (15) a horizontal pivot pin (19) supports at one end, the other end of which ') is mounted in a bearing plate (17) which is arranged at a distance from the vertical pivot pin (15) and is firmly connected to this, that the horizontal pivot pin (19) is connected to the frame (8), and that the bearings the respective ends of the pivot pins (15, 19) are designed as self-aligning sliding bearings, the spherical bearing surfaces (21) of which are provided with lubricating grooves (31) arranged like a network. 2. Compactor according to Claim 1, characterized in that the pivot pin (15, 19) have a longitudinal lubricant bore (29), each in pockets (24) of the bearing receptacles (23) on the end faces of the Gelenx pegs (15, 19) open and from which bores (30) lead to pockets (25) which are located on the side of the bearing facing away from the pockets (24). ; '* 3. Compactor according to claim 2, characterized in that the longitudinal lubricant bore (30) of the vertical pivot pin (15) is connected to a lubricant \ storage space. 4. Compactor according to Claim 3, characterized in that the lubricant storage space the interior of a cylinder (13) arranged above the vertical pivot pin (15). ι 5. Compactor according to claim 4, characterized in that the vertical pivot pin (15) is mounted on the underside of the cylinder (13). 6. Compactor according to one of claims 1 to 5, characterized in that the Self-aligning plain bearings each have an outer bearing ring (20) and an inner one on the S I I 1 I I I I I I I I I I I I I ··· 11111 * 111 * t II ti · »I» λ MIIIIItIIIIt «1 * 11 * 11 * 11 ^a ι * ■ ■ till I I 1 each pivot pin (15, 19) have attached bearing ring (22). 7. Compactor according to one of claims 1 to 6, characterized in that the '< bearing elements <? Ilen are sealed by mechanical seals (26, 28). • 8. Compactor according to one of claims 1 to 7, characterized in that between the joint fork (11) and the joint (7) and between the bearing plate (17) and its holders (16) on the vertical joint pin (15) peel-5j sheets (34) are arranged. 9. Compactor according to one of claims 1 to 8, characterized in that on both sides of the horizontal hinge pin (19) between the frame (8) and ■ Q the hinge part (15, 16, 17) supporting the horizontal hinge pin (19), damper ( 37) are arranged. 10. Compactor according to Claim 9, characterized in that the damper (37) Rubber buffers are. 11. Compactor according to claim 9 or 10, characterized in that under the Joint (7) a carrier plate (36) is arranged, which has the damping springs (37) between the carrier plate (36) and the underside of a cross member (10) of the frame (8) are clamped, carries. 12. Compactor according to one of claims 1 to 11, characterized in that stops (40) are arranged on the frame (8) on both sides of the joint (7), ' J which are at a distance from the joint (7) when the frame (8) is horizontal.