DE1759301A1 - Vibrating roller - Google Patents

Description

of the company AUG-Werke GmbH., 325 Hameln, Am Damm

concerning: "Vibration roller"

The invention relates to a vibrating roller to generate different balancing forces with bilateral Bearing support ignition of the unbalance shaft inside the roller body.

To the use of vibratory rollers, in orater line in the To make road construction »more economical, the Unwuchtmaas en has already been designed to be adjustable in order to enable a company with to enable different balancing forces. Practice has shown that when compacting poor soil types and blasted foliage rock with a very effective impact low frequency gives the best compression values. On the other hand, a low frequency and a high result Impact force of the vibration orphan with the increase in the number of roller transitions and with the compaction of carbon-ionless ones Soil types lead to undesirable loosening of the soil on the surface. This phenomenon is countered by then one in the last roll crossings or in the case of cohesionless soil compacted with higher frequency and lower force.

109885/0431 ^{BATHROOM 0RfGINAi} -

According to this, it would be desirable to create a vibrating roller that allows, on the one hand, with the greatest possible Balancing forces at low frequency and on the other hand with aias lower balancing forces, but with high ones Frequencies to work.

The desired, very high impact forces have been achieved so far limits are set by the bearing of the unbalanced shaft, by looking at insurmountable lubrication problems in the case of bearing bodies that can be dimensioned accordingly came across, especially since the requirement also had to be met Operation with high frequencies a world-wide maintenance-free operation had to be guaranteed. With oversized bearing bodies In addition, the deflection of the vibration wave when generating very high balancing forces would be reduced caused slight inclinations of the shaft in edge pressures on the bearings that could not be controlled in terms of material impact. The invention is therefore based on the problem of solving this problem with the unbalanced bulges Unforces beyond the magnitude attainable today generate at low frequency, and the other time an operation with low impact force and high frequency he * - possible to find a solution.

The invention consists in that the bearing supports Imbalance shaft ale double bearings In the form of two side by side Roller bearings are formed on the common support housing are, and the support housing of the double bearings in with their Outer edges attached to parts of the roller body are suspended annular disks, which are rigid in the radial direction, in axial direction but a slight movement «play of the support housing allow. The subdivision of the bearing depreciation into two roller bearings arranged next to each other makes it possible

109885/0 A3t

exploit Snorm lying balancing forces whose Einaeltragfähißkeit to generate about today's orders of magnitude ^ without thereby encountering insurmountable lubrication problems. The misalignments of the unbalance shaft occurring with high balancing forces and the otherwise associated chewing pressures in the previous one-piece bearing bodies are taken into account in that the supporting housings of the double bearings in the radial direction; rigid ring disks, which allow a small amount of movement in the axial direction. The bearings are thus placed in a position to automatically adapt to the unavoidable misalignments or deflections of the unbalance shaft, especially in the case of excessive unbalance forces.

The desired properties know the ring discs for example, can also be conferred by being in provides them with recesses that reduce the rigidity in the axial direction. Another solution is to that the ring disks are no longer made in one piece, but rather it is composed of several ring disc lamellae. The individual lamellas can advantageously be converted into an im Cross-section of flat, like ring body be united.

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The drive of the nonwoven wool with different frequencies is preferably done by a reversing gear or a reversing gear./litteis With a simple switching process, the unbalance shaft can be switched from left to right rotation. By being rotatable on the unbalance shaft in the range of stops arranged imbalances, let it be realized, that the Vioratlonswalze with counterclockwise rotation with high. Frequens>, and reduced impact force and 'with clockwise rotation with lower Frequency and very low power is working.

109885/0431

In the drawings, the subject matter of the invention is In an exemplary embodiment illustrated.

Fig. 1 shows a longitudinal aclinity through a

Vibrating roller with bearing supports and an unbalance arrangement according to the invention,

Fig. 2 shows a section A-A through the unbalance shaft with counterclockwise rotation and high frequency of the Unbalance shaft,

. Fig. 3 shows the same section through the unbalance

wave with clockwise rotation and low frequency.

1 with the roller body and 2 with the unbalance shaft. The unbalanced shaft 2 is supported on both sides in bearing supports, each of which has two cylindrical roller bearings 3 »4 and 5, 6 arranged next to one another. The pairs of bearings are bearing housing allocated 7.8, which are suspended in the annular discs 9 '10, and at their inner edges 9 ^1, 10' the support housing 7, 8 and their outer edges 9 ", IO" means Einsatzrlngen IS ₁ 19 on the end walls 20, 21 of the roller body are attached. The insert rings 18, 19 also serve to fasten the journal cover 2Ζ _Ψ 23 of the roller body 1

On the Unwuohtwelle 2 there are two firmly tapered Imbalances 11, 12, in turn with a driving cam ▼ are seen. Each of the fixed imbalances 11, 12 is assigned a rotatably mounted imbalance l4, 15, with two elastic stops 16, 17 are provided.

When the vibrating roller is driven at high frequency and in Left rotation according to Flg. 2 take the Witnehraernocken 13 of the fixed ones Imbalances 11, 12 the rotatably mounted imbalances 14, IS over the elastic stops 17, so that the rotatably mounted Unwuohten 14, 15 see In the sense of reducing the total Impact Wuohtkraft

109885/043 1

r 5 »

Bel drive the vibrating roller with low frequency and in a clockwise direction in FIG. 3 take the cam lobe 13 of the solid ünwuchten 11, 12 rotatably mounted unbalances Ik, If) via the elastic stoppers 16, so that the rotatably mounted unbalances Ik, 15 in Effect meaning an increase in the total impact force.

Characterized in that the annular disks 9, 10 are dimensioned or configured in such a way are that they are practically to be addressed as rigid in the radial direction and a play movement in the axial direction allow the support housing 7, 8 suspended in them, the effect is obtained that the roller bearing pairs 3, 4 and 5, 6 can adapt to misalignments of the unbalance shaft so that no excessive edge pressure occurs on the bearings, and the roller bearings are used to their full capacity can be. The consequence of this is that such bearing wear is far above the current norm withstand, and thus the possibility is opened up, vibratory rollers work with balancing forces at lowersDre & zaKl to leave that have previously been considered unreachable.

( Patent claims)

109885/0431

Claims (5)

.1753.301 Claims Vibrationswalsse to generate different balancing forces with beldseltlgea bearing supports of the unbalance we he inside the roller body, characterized in that the bearing supports of the unbalance shaft (2) as double bearings in the form of two roller bearings (3, ** and 5, 6) arranged side by side in a common Support housing (7 or 8) and the support housings of the double bearings ^{are suspended in annular disks (9 * 10) attached to parts of the roller body with their outer edges (9 n} , 10 "), which are rigid in the radial direction but one in the axial direction Allow little play in the support housing. 2) Vlbrationswalze according to claim 1, characterized in that the annular disks have recesses. 3) vibrating roller according to claims 1 and 2, characterized in that the annular disks consist of a plurality of annular disks arranged like lamellae. 4) vibrating roller according to claim 3, characterized in that daft the ring disc larvae have a fan-like cross-section exhibit. 109885/0431 5) vibratory roller according to claims 1 to k _t, characterized in that the drive of the unbalance shaft is carried out by a reversing gear and on the unbalance shaft fixed unbalances (11, 12) in the 3 range of stops rotatably mounted unbalances (Ik, 15) are assigned such that the vibrating rollers work in one direction of rotation of the unbalance shaft with a high frequency, depending on the reduced ... BATH ORIGINAL