EP2864548A2

EP2864548A2 - Soil compaction device

Info

Publication number: EP2864548A2
Application number: EP13717758.0A
Authority: EP
Inventors: Rainer Schrode
Original assignee: MTS Maschinentechnik Schrode AG
Current assignee: MTS Schrode AG
Priority date: 2012-06-20
Filing date: 2013-04-12
Publication date: 2015-04-29
Anticipated expiration: 2033-04-12
Also published as: DE202012013346U1; WO2013189622A2; WO2013189622A3; DE102012210373A1; EP2864548B1

Abstract

The invention relates to a soil compaction device (1) comprising a compaction element, for example, a compaction plate (2). According to the invention, the compaction attachment (1) has two interspaced receiving sections (6) for receiving a rigid retaining element (17a, 17b) of a transport means (16).

Description

Soil Compactor

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.
Transport to the carrier, i. the excavator or the place of use by means of suitable means of transport, such. Steel ropes, hoisting ropes or slings with load hook in connection with special hangers. The soil compacting device is lifted by means of the transport means onto a transport pallet, which is received and transferred by means of a lifting fork of a suitably equipped vehicle, such as a forklift or a lifting fork device of a wheel loader. 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.
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 preferably mutually aligned recesses or two spaced-apart and preferably 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 need not necessarily be formed by separate parts. 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 lifting fork, but with other lifting means, such as rods 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.
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:
Figure 1 is a schematic sectional view of a soil compaction device in the form of a cultivation compressor with receiving portions.
FIG. 2 is a perspective view of the add-on compactor of FIG. 1 with lifting forks inserted into the receiving sections; FIG.
Figure 3 shows two spaced-apart receiving portions of the add-on compactor of Figure 2 with a fork tines of a lifting fork in an exploded view.
Figure 4 is a side view of a compactor plate with alternative receiving portions;
Figure 5 is a view similar to Figure 4 with even more alternative receiving sections;
Figure 6 is a perspective view of a dome portion of a soil compaction device with receiving portions; and
Figure 7 is a view similar to Figure 6 with alternatively arranged receiving portions.
FIG. 1 shows a soil compacting device in the form of a surface mounted compressor 1, which has a compressor plate 2 as a compacting 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 figure 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 add-on compactor 1 with respect to the excavator arm 8 about an axis shown in Figure 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 hydraulically connected to the hydraulic system of the excavator via the dome section 7 and hydraulic lines 12 (indicated in FIG. 1).
FIG. 2 shows a perspective and somewhat detailed view of the add-on compactor 1 according to the invention from FIG. 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 side edge 13a curved laterally outward toward the compressor plate 2 (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 (not numbered) laterally of the recess 6 provided on both sides to give the lower support structure 13 additional stability. 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 of the connecting devices 3a-d are arranged along an axis A (shown in dashed line in Figure 3) 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 FIG. 2, both forks 17a, 17b are inserted into the respective pairs of recesses 6. In FIG. 3, this region is shown as an exploded view only for a fork prong 17a and the corresponding front recesses 6 in FIG. Due to the distance from each other at a distance B arranged connecting means 3a, 3b of the forks 17a can be inserted almost over its entire length in the axially aligned mutually arranged recesses 6 therethrough. 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.
FIGS. 4 to 7 show alternative positions as well as alternative embodiments of the receiving sections 6. In this case, those elements and regions which have equivalent functions to elements and regions already described bear the same reference numerals. They will not be described again below.
In Figure 4, two adjacent receiving portions 6 are provided in a single recess 22 formed by a bracket 23 welded to the top of the compactor plate 2 in proximity to 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 indicated in Figure 4 by dash-dotted lines.
Figure 5 shows a very similar to Figure 4 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 mounted compressor 1, in which the receiving sections are made in the form of rectangular recesses 6 in lateral support walls 24 of the dome section 7 designed as a quick coupler.
FIG. 7 in turn shows an attachment compressor 1, in which the receiving sections 6 are present in four brackets 23, which are welded to the underside of a support plate 25 of the coupling section 7 designed as a quick coupler.

Claims

Soil compacting device (1) with a compacting element (2), characterized in that it comprises: a first pair of spaced receiving portions (6) for receiving a first rigid support member of a transport means in the form of a first fork tine (19) of a lifting fork (16) and a second pair of spaced receiving portions (6) for receiving a second rigid support member 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 by two spaced apart and axially aligned recesses (6) or two spaced apart and axially aligned portions of a single recess (6) are formed, which recesses (6) are formed so that in them the respective forks (19) of the lifting fork (16) can engage.
Soil compacting device (1) according to claim 1, characterized in that it is a cultivation compressor, which can be coupled to an excavator (8).
Soil compactor (1) according to any one of the preceding claims, characterized in that the compression element is a vibrating plate, a compressor plate (2) or a roller.
Ground compacting device (1) according to one of the preceding claims, characterized in that it comprises at least one insertable into the recesses adapter for closing the recesses (6) and / or for attachment of differently configured holding means (16).
Ground compacting device (1) according to one of the preceding claims, characterized in that the compression element (2) is connected via connecting devices (3a-3d) to an upper part (5) of the soil compaction device (1) and the receiving sections (6) in at least one connecting device ( 3a-3d) are formed.
Ground compacting device (1) according to claim 5, characterized in that at least one connecting device (3a-3b) has a lower supporting structure (13) connected to the compacting element (2) and an upper supporting structure (14) connected to the upper part (13). 5), and at least one buffer means (4) disposed between the lower support structure (13) and the upper support structure (14), and in that the receiving portions (6) are formed in the lower and / or upper support structure (14) ,
Soil compactor according to one of claims 1 to 4, characterized in that the receiving portions are formed on an upper part of the soil compaction device.
Soil compacting device (1) according to one of claims 1 to 4, characterized in that the receiving portions (6) on an upper side of the compression element (2) are arranged.
Soil compacting device (1) according to one of claims 2 to 4, characterized in that the receiving portions (6) in or on a dome portion (7) for coupling the soil compaction device (1) to a construction machine (8) are arranged.
Soil compactor according to one of the preceding claims, characterized in that all receiving portions (6) in a common recess (22) are present.
Transport system for a soil compacting device (1) according to one of the preceding claims, characterized in that the transporting means (16) comprises at least one securing device (21) which releases the retaining element (19) of the transporting means (16) from the receiving sections (6) of the transporting device (16) Soil compactor (1) prevented.