EP2864548B1 - Compacting device for soil - Google Patents

Description

The invention relates to a soil compaction device with a compactor plate.

Soil compacting devices in the form of vibrating plates, plate compactors or rollers are known, for example, as hydraulic add-on compactors, ie as accessories for excavators, in particular in trench and pipeline construction. In conjunction with quick-change bodies and turrets, they offer cost-effective replacements cost savings and an increase in occupational safety, since the residence of construction workers to compaction work in trenches can be omitted.

The transport to the carrier, ie the excavator or the place of use by means of suitable means of transport, such as steel cables, hoisting ropes or slings with load hook in conjunction with special hangers. The soil compacting device is lifted with the aid of the transport means on a transport pallet, which with a lifting fork of a suitably equipped vehicle, such as a forklift or a Hubbabeleinrichtung a wheel loader, and recorded is implemented. The standing on the transport pallet soil compactor is usually moved in unsecured condition. In particular, during braking or driving on an uneven track on a construction site slipping or tilting of the soil compactor threatens from the transport pallet. This can lead not only to damage to the soil compaction device itself, but also to personal injury, which is why the previously unsecured transport represents a security risk.

EP 2 123 831 A2 and EP 1 936 037 A1 each describe a soil compaction device, which can be coupled to an excavator.

The invention is therefore based on the object to provide a soil compaction device that is easy and safe to transport.

The object is achieved by a soil compaction device with the features of claim 1 and a transport system with the features of the independent claim.

The rigid holding element of the transport means is a horizontal support of a fork tine of a lifting fork, which is inserted in the longitudinal direction of this carrier viewed from each other and aligned receiving portions. In particular, the invention has the advantage that safe transport without additional aids is possible due to the receiving sections arranged on the soil compaction device, wherein tilting of the soil compaction device is precluded by the axial distance between the two receiving sections of a pair. By using two pairs of receiving sections, the soil compactor is also secured laterally against tipping.

The embodiment of the invention does not require any of the lifting means described above, such as hoisting ropes or slings with load hooks and dispenses with the use of a transport pallet. The soil compaction device can only be moved or moved by means of a lifting fork. Transportation to the next job site on transport vehicles with a loading area, such as a truck, is easier because the soil compaction device can be secured directly on the loading area. Another advantage is that without the transport pallet, the center of gravity of the arrangement is no longer changed. As a result, the tilting moment of the soil compaction device is not changed and thus the transport safety significantly improved and safer.

The invention is particularly advantageous if the soil compaction device is a cultivation compactor which can be coupled to an excavator.

The receiving portions comprise two spaced-apart and mutually aligned recesses or two spaced-apart and mutually aligned portions of a single recess into which the complementary rigid support member of the transport means can engage. By the latter embodiment, the fact is taken into account that the spaced-apart receiving portions not necessarily by separate parts must be formed. It is only essential that the arrangement is such that the rigid holding element can be torque-rigidly connected to the soil compaction device at least in its longitudinal direction. The proposed recess is inexpensive and easy to implement and can be retrofitted even in existing soil compaction equipment. In addition, this requires a particularly stable structure. The supporting part of the means of transport can take up the compressor particularly easily.

The recess preferably has a rectangular shape, whereby the soil compaction device can be stored particularly securely, since the forks of Hubgabeln are surrounded in the receiving portions at least substantially circumferentially. In addition, the forks of lift forks also usually have a rectangular cross section, so that a kind of positive engagement is achieved, which can transmit a moment about the longitudinal axis of the fork tine. However, there are other forms, such as semicircular configurations or the like. conceivable. In this case, the supporting part of the receiving portion is at least partially always circumferentially encompassed. This ensures that the soil compactor can not slip sideways or tip over. Even in extreme slopes caused by uneven terrain conditions on construction sites, the soil compaction device can therefore not detach from the transport vehicle.

As a rigid holding element, as already mentioned, a forks of a lifting fork, for example, a forklift provided. To transport the soil compaction device, the fork could be released from the forklift and secured to the truck. Alternatively, the lifting fork is taken out of the receiving sections and secured the soil compaction device using the receiving sections on the truck. This makes transport particularly easy and safe.

Furthermore, the soil compaction device may comprise at least one adapter which can be inserted into the recess for closing the recess and / or for fastening differently configured holding means. Thus, the soil compaction device can not only with a fork, but with other lifting equipment, such as bars or similar or lifting forks of smaller dimensions. If the soil compaction device is used, the recesses are protected from contamination.

Preferably, the compression element is connected via connecting means to an upper part of the soil compacting device and in each case a receiving portion is formed in at least one connecting device. This has the advantage that the provision of the receiving sections requires no changes to other components of the soil compaction device, which saves costs and facilitates the retrofitting mentioned above.

In a further development, it is provided that at least one connecting device has a lower support structure which is connected to the compression element, and an upper support structure which is connected to the upper part. Between the lower support structure and the upper support structure, a buffer device is arranged. Such a buffer device may for example be a metal rubber buffer. The support structures are particularly stable and often structurally simple, so that the local arrangement of the receiving sections can be structurally easily realized.

In a further embodiment, it can preferably be provided that the receiving sections are formed on an upper part of the soil compaction device. Thus, the center of gravity is below the point of application of the retaining element, which reduces the risk of tilting. It can also be provided to design the receiving sections there in the form of rings or hooks in order to be able to lift the device by means of a crane. As a result, the compressor can also be easily lifted by bounded loading areas or lower parking spaces.

A further embodiment of the invention provides that the receiving sections are arranged on an upper side of the compacting element. As a result, other forms of receiving sections are possible, such as hooks, eyes, etc., and retrofitting is easily possible by replacing the compression element.

It is also proposed that the receiving sections are arranged in or on a dome section for coupling the soil compaction device to a construction machine. The dome section may be a quick coupler, as is common, for example, for coupling an add-on compactor to an excavator arm. This is the uppermost part of a soil compactor, so that the center of gravity is below the receiving sections and so far there is no risk of tipping over.

It is also possible that the receiving portions are present in a common recess. The advantage of this embodiment is the particularly simple and thus inexpensive design.

In a transport system comprising the receiving sections of the soil compaction device and the transport means, the transport means may comprise at least one securing device which prevents the holding element of the transport means from being detached from the receiving sections of the soil compaction device.

• Fig. 1 eine schematische Schnittdarstellung eines Bodenverdichtungsgeräts in Form eines Anbauverdichters mit Aufnahmeabschnitten;
• Fig. 2 eine perspektivische Darstellung des Anbauverdichters von Figur 1 mit in die Aufnahmeabschnitte eingeschobenen Hubgabeln;
• Fig. 3 zwei voneinander beabstandete Aufnahmeabschnitte des Anbauverdichters von Figur 2 mit einem Gabelzinken einer Hubgabel in einer Explosionsdarstellung;
• Figur 4 eine Seitenansicht auf eine Verdichterplatte mit alternativen Aufnahmeabschnitten;
• Figur 5 eine Darstellung ähnlich wie Figur 4 mit nochmals alternativen Aufnahmeabschnitten;
• Figur 6 eine perspektivische Darstellung eines Kuppelabschnitts eines Bodenverdichtungsgeräts mit Aufnahmeabschnitten; und
• Figur 7 eine Darstellung ähnlich wie Figur 6 mit alternativ angeordneten Aufnahmeabschnitten.

Further details and features of the invention will become apparent from the following description of an embodiment with reference to the drawings. The features, both alone and in different combinations, may be important to the invention. Show it:

• Fig. 1 a schematic sectional view of a soil compaction device in the form of a cultivation compressor with receiving portions;
• Fig. 2 a perspective view of the attached compactor of FIG. 1 with inserted into the receiving portions Hubgabeln;
• Fig. 3 two spaced receiving portions of the attached compactor of FIG. 2 with a fork tines of a lifting fork in an exploded view;
• FIG. 4 a side view of a compressor plate with alternative receiving portions;
• FIG. 5 a representation similar to FIG. 4 again with alternative recording sections;
• FIG. 6 a perspective view of a dome portion of a soil compaction device with receiving portions; and
• FIG. 7 a representation similar to FIG. 6 with alternatively arranged receiving sections.

In the FIG. 1 is a soil compaction device in the form of a surface mounted compressor 1 is shown, which has a compressor plate 2 as a compression element. The compressor plate 2 is connected via four connecting devices 3 with buffer devices 4, in particular metal rubber buffer, with an upper part 5 of the add-on compactor 1. It has a substantially flat structure with an angled front end face (without reference numeral) and an angled rear end face (without reference numeral).

The connecting means 3 are arranged in pairs opposite each other, namely a first pair adjacent to the front end face and a second pair adjacent to the rear end face of the compressor plate 2, and have in their lower, the compressor plate 2 facing region each having a recess 6, whose central axis perpendicular to the plane of the FIG. 1 runs. In this embodiment, the recesses 6 of a pair, which are aligned with one another and are spaced apart from one another, in this embodiment form receptacle sections, each in a manner to be represented, for a holding element of a transporting means.

The cultivation compressor 1 is attached via a dome section 7 on a excavator 8. The dome portion 7 may be formed as a quick-change system, which in a simple manner, a mechanical and hydraulic connection to an otherwise not shown excavator can be made. Below the dome section 7 is followed by a rotary motor 9, via which the attachment compressor 1 with respect to the excavator 8 to a in FIG. 1 vertical and dash-dotted axis is rotatable.

The compactor plate 2 is set in motion by an unbalance generator 10, the latter being driven by a hydraulic motor 11. The hydraulic motor 11 is above the dome portion 7 and Hydraulic lines 12 (in the Fig.1 indicated) hydraulically connected to the hydraulic system of the excavator.

In the FIG. 2 is a perspective and somewhat detailed view of the attachment compactor 1 of the invention FIG. 1 shown. The cultivation compressor 1 has, in this embodiment, as mentioned, four connecting devices 3a-3d, which connect the compressor plate 2 with the upper part 5. The connecting devices 3a-3d are each designed in several parts, with each connecting device 3a-3d in the present case being composed of three components, namely a lower support structure 13, an upper support structure 14, and the buffer devices 4 arranged between them.

The upper support structure 14 is a metal plate, which is on the upper part 5 in a direction of a central axis (without reference numeral) desselbigen directed angle, so tilted obliquely inwards, attached. On the upper support structure 14 is connected via connecting means, such. Screws, one side of the buffer device 4 attached. The buffer means 4 are formed in this embodiment as single-shell hyperboloids with attachment means to both end sides, but may also have other cylindrical shapes. The lower support structure 13 is also a metal plate, which is attached to the compressor plate 2 and parallel to the corresponding metal plate of the upper support structure 14, that is, viewed from the compressor plate 2 is tilted outwards. The other side of the buffer device 4 is fixed to the metal plate of the lower support structure 13.

The lower support structure 13 has a rectangular shape in itself, with to the compressor plate 2 out laterally outwardly curved side edge 13 a (see FIG. 3 ). The lower support structure 13 is fixed by welding on the top of the compressor plate 2, wherein it, as I said, parallel to the upper support structure 14 and thus arranged at the same angle as this to the compressor plate 2. Furthermore, on the side facing away from the buffer device 4 side of the lower support structure 13, a wedge element (without reference numeral) laterally of the recess 6 provided on both sides to the lower support structure 13 additional stability to rent. The wedge member is also made of a metal plate. At the side adjacent to the compressor plate 2 side of the lower support structure 13, the recess 6 is centrally formed, which is formed rectangular in the present case.

Two each of the connection means 3a-d are arranged along an axis A (in FIG. 3 shown as a dashed line) axially aligned at a distance B to each other, so that the recesses 6 are each two connecting devices 3a-d on the axis A. The distance B is measured according to the width in the lower region of the upper part 5. The connecting device 3a is in this case about an axis C, which is perpendicular to the axis A, formed axially symmetrical to the connecting device 3b mirrored.

In the mutually aligned recesses 6 of a pair of recesses 6, a rigid retaining element 19 of a transport means in the form of a lifting fork 16 can be inserted. Such a lifting fork 16 may belong to a forklift or a lifting fork device on a wheel loader. The lifting fork 16 has two angular forks 17a, 17b, which are arranged parallel to each other by means of a suspension plate, not shown, at an adjustable distance. The forks 17a, 17b each consist of a right-angled component which forms a generally vertical support 18 in use and a generally horizontal support 19 in use, which forms the actual and cooperating with the recesses or receiving sections 6 rigid support member and the load bearing serves, has. For fixing the forks 17a, 17b to the suspension plate, mutually directed, right-angled hooks 20 are arranged on the vertical support 18 of the fork tines 17a, 17b.

In the FIG. 2 Both forks 17a, 17b are inserted into the respective pairs of recesses 6. In the FIG. 3 this area is only for a fork prong 17a and the corresponding in FIG. 2 cut out front recesses 6 shown as an exploded view. Due to the distance from each other at a distance B arranged connecting means 3a, 3b of the forks 17a is almost on his entire length in the axially aligned mutually arranged recesses 6 through inserted. In the front end region of the horizontal support 19 (ie in the region of the free end of the carrier 19) has a bore 21 is provided. In this bore 21 6 securing means, such as bolts, hooks or chains can be used after insertion of the forks 17a in the recesses to prevent slippage of the attachment compressor 1 during the transfer or transport.

The recesses 6 are configured in size such that forks 17a, 17b of conventional lifting forks 16 can be used. In the recesses 6 can still insert adapter, not shown, in order to use lift forks 16 of smaller size to be able to mount further securing means or the like or to close the recesses 6 when needed can.

For example, the following procedure is followed for a transport: First, the forklift truck approaches the cultivation compactor 1 standing on the ground and pushes the two holding elements or carriers 19 of the lifting forks 16 into the pairs of recesses 6. Then the securing means mentioned above are inserted into the bores 21 introduced. Now the forklift raises the compactor 1 and unloads it on a truck bed. The two forks 16 of the forklift are now taken out of the recesses 6 and the attachment compressor 1 by other means which cooperate with the recesses 6, such as ropes or straps, attached to the truck. In this way, the cultivation compressor 1 is transported to the site. There, the lifting forks 16 are again attached to a forklift so that it can lift the attachment compactor 1 from the back of the truck and park it on the ground. After removing the securing means from the bores 21, the holding elements 19 of the forks 17a, 17b are pulled out of the recesses 6. Now the add-on compactor 1 is attached to the excavator and used.

The FIGS. 4 to 7 show alternative positions as well as alternative embodiments of the receiving sections 6 Elements and regions that have equivalent functions to previously described elements and regions have the same reference numerals. They will not be described again below.

In FIG. 4 There are two juxtaposed receiving portions 6 in a single recess 22 formed by a bracket 23 welded to the top of the compactor plate 2 near its longitudinal edge. An identical bracket (not visible) is welded at the opposite longitudinal edge with the compressor plate 2 and in turn comprises two adjacent receiving sections 6. The horizontal support 19 of the two lifting forks are in FIG. 4 indicated by dash-dotted lines.

FIG. 5 shows one too FIG. 4 very similar embodiment in which the length of the bracket 23 but is significantly lower and therefore the two adjacent receiving sections 6 within a bracket 23 are significantly closer together.

FIG. 6 shows a cultivation compressor 1, in which the receiving portions are introduced in the form of rectangular recesses 6 in lateral support walls 24 of the coupling portion designed as a quick coupler 7.

FIG. 7 again shows a cultivation compressor 1, in which the receiving portions 6 are present in four brackets 23 which are welded to the underside of a support plate 25 of the coupling portion designed as a quick coupler 7.

Claims (11)

1. Soil compacting device (1) with a compacting element (2), having a first pair of mutually spaced receiving portions (6) for receiving a first rigid holding element of a transport means in the form of a first fork tine (19) of a lifting fork (16), and a second pair of mutually spaced receiving portions (6) for receiving a second rigid holding element of a transport means in the form of a second fork tine (19) of a lifting fork (16), wherein the receiving portions of a pair are formed by two mutually spaced and axially aligned recesses (6) or by two mutually spaced and axially aligned regions of a single recess (6), which recesses (6) are configured such that the respective fork tine (19) of the lifting fork (16) can engage therein.
2. Soil compacting device (1) according to claim 1, characterised in that it is an attachment compactor which can be coupled to an excavator (8).
3. Soil compacting device (1) according to one of the preceding claims, characterised in that the compacting element is a vibratory plate, a compacter plate (2) or a roller.
4. Soil compacting device (1) according to any of the preceding claims, characterised in that it comprises at least one adapter which can be inserted in the recesses for closing the recesses (6) and/or for fixing holding means (16) of various designs.
5. Soil compacting device (1) according to any of the preceding claims, characterised in that the compacting element (2) is connected via connecting devices (3a-3d) to an upper part (5) of the soil compacting device (1), and the receiving portions (6) are formed in at least one connecting device (3a-3d).
6. Soil compacting device (1) according to claim 5, characterised in that the at least one connecting device (3a-3d) has a lower supporting structure (13) which is connected to the compacting element (2), an upper supporting structure (14) which is connected to the upper part (5), and at least one buffer device (4) arranged between the lower supporting structure (13) and the upper supporting structure (14), and that the receiving portions (6) are formed in the lower and/or the upper supporting structure (14).
7. Soil compacting device according to any of claims 1 to 4, characterised in that the receiving portions are formed on an upper part of the soil compacting device.
8. Soil compacting device (1) according to any of claims 1 to 4, characterised in that the receiving portions (6) are arranged on a top side of the compacting element (2).
9. Soil compacting device (1) according to any of claims 2 to 4, characterised in that the receiving portions (6) are arranged in or on a coupling portion (7) for coupling the soil compacting device (1) to a construction machine (8).
10. Soil compacting device according to any of the preceding claims, characterised in that all receiving portions (6) are present in a common recess (22).
11. Transport system for a soil compacting device (1) according to any of the preceding claims, characterised in that the transport system comprises a transport means (16) with a first holding element (19) in the form of a first fork tine (19) of a lifting fork (16) and a second holding element (19) in the form of a second fork tine (19) of the lifting fork (16), which transport means comprises at least one safety device (21) which prevents a release of the holding elements (19) of the transport means (16) from the receiving portions (6) of the soil compacting device (1).

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