DE8530160U1 - Vibratory hammer - Google Patents

Description

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VIBRATION RAM

The innovation concerns a vibratory hammer with two counter-rotating Imbalances each driven by a motor, rotating synchronously and stored in a housing.

Known vibratory hammers have in a housing two parallel shafts seated, opposite and ymmetrisch for! ·· 'central plane arranged imbalances on. On each shaft sit intermeshing, counter-rotating Za. ^l > nwheels.

^{One of} these gears engages on the output shaft of the Motor seated pinion.

yy. Such a device requires a large amount of space. To the

To align the unbalances precisely to one another, it is necessary to

f make the housing very carefully, the bearing bores

; to be applied precisely and a relatively large amount of welding work to be carried out.

The known Vorrichurigen are therefore relatively expensive. In addition

comes that in the known devices an expensive

Gear ratio is required, which is also too un-

,, ~) desired noise pollution.

From DE-PS 33 03 574 a vibration _{hammer is known, He 1} dpr the two unbalances are not set in synchronous, counter-rotating rotation via a coupling gear transmission, but by means of two hydraulically coupled drive motors. Owing to the fact that the two unbalanced shafts are also arranged parallel to one another here, however - apart from the cost saved on the gearbox - the same costs result for the manufacture of the housing and the large installation space required therewith.

The innovation is based on the task of providing a device

pinqangs mentioned type to create the bi> i same performance allows a much smaller installation space and is much cheaper to manufacture.

The task at hand is solved according to the innovation with the characterizing feature of claim 1.

The innovation is explained below with reference to the drawing, for example. Show it: Fig.l shows a longitudinal section through a vibratory hammer after innovation

2 shows a cross section along the line II ^a II in Fig.l F iq. 3 shows a longitudinal section through another embodiment

Vibratory hammers and 4 shows a cross section along the line IV-IV in FIG.

The Vibrätiöhsramme shown in Fig.l and 2 consists of a tubular housing 1 which is closed at its ends with a bearing plate 2, 3 and in its central section an intermediate bearing shield. 4 has. There is one between each end shield 2 or 3 and the intermediate end shield 4 Imbalance 5 or 6, each on one in the end shields 2,3 and 4 mounted shaft 7 and 8, respectively, are seated. Each shaft 7 or 8 is coupled to a drive motor 9 or 10, respectively. As both engines rotate in the same direction, but face each other, the imbalances rotate in opposite directions to each other. The synchronous operation of the Imbalances appear very quickly and do not require any forced coupling, not even a common energy source or coupling of the drive motors.

As the drawing shows, the shafts 7.8 of the unbalances are 5.6 ϊ

in alignment with one another and coaxial with the tubular housing 1 jj

arranged. This results in an extraordinarily I,

compact design and an I that can be assembled from cheap parts,

Casing.

In this embodiment, possible small drift fluctuations around a central axis perpendicular to the axis of rotation of the shafts /, H chin in many cases where cylindrical piles or pipes are to be driven in, be very desirable. The perpendicular The vibratory movement of the ram becomes horizontal Torsional vibration component superimposed.

The installation space of this version is only about 25% of the known versions with the same performance. It arises here liine weight savings of 40-50%. There is no gear ratio It is provided that the annoying tooth noises, i'as, are also eliminated Housing can be made from a commercially available tube.

For cases where di.2 horizontal torsional oscillation is undesirable, the embodiment according to FIGS. 3 and 4 is provided. Here, too, a tubular housing 11 is provided, the ends of which are closed off by end shields 12, 13. Between the bearings 1 deri 12, 13 an imbalance 15 forming a partial cylinder ring and an imbalance 16 forming a partial cylinder are provided on the one hand. The imbalances 15, 16 are energy-wise adequate to one another. The unbalance 16 is seated on a shaft 18 mounted in the end shield 13, the free end of which is supported by means of a ball bearing 14 on a flange of the unbalance 15. The free end of the unbalance 15 is supported on the housing 11 by means of a ball bearing 17.

The imbalances are aligned with one another and arranged coaxially and each by a motor 19, 20 independently of one another driven. Since both imbalances are arranged symmetrically to the central radial plane of the device, there are none horizontal vibrations. Also in this embodiment the advantageously small installation space is given.

Claims (2)

1. Vibration ram with two synchronously rotating motors, each driven in opposite directions and in one housing stored imbalances characterized, that the shafts (7,8; 17,18) of the unbalances (5.6; 15.16) () are arranged in alignment with one another independently of one another. 2. Vibratory hammer according to claim 1, characterized in that «let the unbalances (5, 6; 15, 16) be arranged in a tubular housing (1.11). • 3. '' ibrationsramme according to claim 1 or 2, characterized in that the unbalances (15,16) consist of two coaxially mounted, oppositely rotating bodies, one of which is essentially partially cylindrical and the other is essentially partially annular and cylindrical are energy-wise adequate to each other. For KRI NGS) INTERNATIONAL GmbH & Co KG Di pl.-In ^J g. Wolfgang K ^ Rauh PATENT ADVOCATE · * Hit on ti i ι * ti ι i t * i n t * t