WO1998042920A1 - Compacting device - Google Patents
Compacting device Download PDFInfo
- Publication number
- WO1998042920A1 WO1998042920A1 PCT/EP1998/001601 EP9801601W WO9842920A1 WO 1998042920 A1 WO1998042920 A1 WO 1998042920A1 EP 9801601 W EP9801601 W EP 9801601W WO 9842920 A1 WO9842920 A1 WO 9842920A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- boom
- drive
- frame
- vibrating
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
- E02D3/032—Trench rollers
Definitions
- the invention relates to a compacting device with at least one roller held in a guide frame, which is connected to a mobile device via a vertical joint, wherein a movement device for the roller is arranged between the vertical joint of the mobile device and the roller.
- Such a compression device is known from US Pat. No. 3,302,540, but it only exerts a low compression force.
- a conventional static roller without its own travel drive is used.
- a relatively difficult-to-drive device is therefore required, which requires its own driver's cab, which makes the entire device considerably more expensive. It is also not possible to apply the required pressure using the telescopic boom. Since static dredger rollers are far too heavy and therefore require far too heavy and expensive carrier devices with a very limited range, they have not been able to establish themselves on the market.
- So-called single drum rollers which consist of a vehicle whose front wheels are replaced by a vibratory roller, are mainly used in landfills.
- the vibratory roller is held by a closed frame which is connected to the vehicle via a vertical joint in order to be able to perform steering movements in this way. Without a roller, the vehicle is not roadworthy because the vehicle weight is distributed over the vibratory roller and rear wheels.
- the drive takes place via the rear wheels and / or via the vibrating roller, which additionally has a further drive in order to be able to carry out the vibrating movements.
- Such single drum rollers can only be used up to certain gradients, because otherwise the single drum roller could tip over, which is a source of danger for the driver. If the slope of a dump is too steep, an additional security vehicle must be used to stabilize the single drum roller on the embankment. For this purpose, the security vehicle is positioned above the single drum on the embankment, from where the single drum roller is secured using a cable winch. However, this procedure has the disadvantage that not only the single drum roller, but also the security vehicle must be relocated when the embankment is compacted in strips.
- landfill sites cannot be optimally used because embankments cannot be created or compacted steeply enough.
- the object of the invention is to provide a device which enables high compaction forces with small roller and vehicle masses, works with reduced operating costs and with which previously inaccessible areas can be compacted.
- the compacting device is characterized in that the roller is a vibratory roller which is equipped with a hydrostatic vibratory drive and a hydrostatic travel drive, of which the travel drive can optionally be switched to idling and driving operation, with the hydraulic oil being circulated by the driving drive for lubrication when idling.
- the provision of a vibratory roller has the advantage that the line load on the roller can be increased many times over that of a static roller, so that a special, large and thus heavy-dimensioned mobile device can be dispensed with. The mass of the vibratory roller can also be reduced.
- the own traction drive has the advantage that it can be switched on, especially on steep slopes, which only enables it to be compacted in unfavorable terrain conditions.
- the design of the travel drive as a hydrostatic drive offers the advantage that when the travel drive is not required, d. H. when the vibrating roller is idling, there is no wear on the roller bearing because the hydraulic oil is circulated for lubrication. In this case, the rolling or driving movement is accomplished exclusively by the actuating device and / or by moving the mobile device.
- the vehicle can, for example, be placed at the foot of a slope or on a plateau above an embankment, from where the steep slope can be compacted without the vehicle itself having to be moved over the slope. This considerably reduces the dangers for the operating personnel and additional safety vehicles are not required.
- the vibrating roller can be moved by the movement device without its own travel drive. It it is also possible to equip the vibratory roller with its own travel drive and to operate the movement device in idle. According to the third possibility, the movement of the movement device can be supported by the travel drive of the vibration roller.
- a continuously variable hydraulic reduction gear is preferably connected upstream of the vibration drive.
- Such a reduction gear is necessary if the oil quantities required for driving the vibrating roller differ from the delivery quantity provided by the pump of the mobile device. This has the advantage that different types of rollers can be combined with different mobile devices in a simple manner. This requires only minor adjustment measures on the reduction gear. Instead of a reducer, a flow divider can also be used.
- the vibrating roller is preferably connected to the movement device via a fork-shaped frame.
- a fork-shaped frame has the advantage that there are no disruptive components in front of the vibrating roller. This means that embankments can be compacted without the frame touching the ground. Furthermore, narrow troughs are accessible, which was previously not possible with a surrounding frame.
- the movement device preferably has at least one two-part boom with actuating devices for moving the boom in and out.
- Such an at least two-part boom can be, for example, a telescopic boom or a boom which has at least two arms which are pivotally connected to one another via at least one horizontal axis.
- the boom on the mobile device can also be pivoted about a horizontal axis. This pivotable mounting is preferably arranged on the vertical joint of the mobile device.
- the boom has at least a first and a second actuating device.
- the frame is preferably attached to the movement device so that it can pivot about a horizontal axis.
- a further (third) actuating device is provided between the boom and the frame.
- the pivot axis of the frame is preferably arranged at a distance from the axis of rotation of the vibrating roller, thereby creating an oscillating mounting of the vibrating roller.
- a more or less large area can be compacted by means of the vibrating roller without the boom itself having to be moved. There is a slight movement in the first swivel axis.
- the frame of the vibratory roller is preferably suspended from the boom via a 4-point joint, the 4-point joint having the third actuating device.
- a single vibrating roller is preferably provided on the frame, but it is not excluded to provide two or more vibrating rollers next to one another or in a tandem arrangement for special applications.
- the roller can be provided with a flat or a padfoot drum, depending on which material is to be compacted. In the case of cohesive soils, the soil may stick to the roller drum.
- at least one scraper extending over the vibrating roller is arranged on the frame. Since the vibrating roller can be moved across the floor in two directions of movement, a scraper is preferably provided for each direction of rotation of the vibrating roller.
- the wipers are advantageously attached to the frame on opposite sides.
- a scraper is advantageously arranged in front and a scraper behind the axis of rotation of the vibratory roller. The wipers are arranged in such a way that even when the vibrating roller is pivoted differently, particularly when the two end stops of the actuating device of the 4-point joint are reached, the soil on the roller drum does not form any accumulations when wiping off.
- At least one elastic buffer is preferably arranged between the wipers and the wiper holders. This ensures that, despite the movements of the vibratory roller, the wipers always press on the drum of the roller, so that stripping of the adhering soil is always guaranteed.
- an additional motor is preferably provided on the mobile device.
- This motor can be provided for the vibration drive device and / or the travel drive device for the vibration roller.
- a counterweight is provided on the mobile device on its side facing away from the movement device, on which this additional motor is mounted. It is preferably attached using centering pins and screw connections.
- the mobile device can be equipped with chains or wheels, for example.
- At least one elastic buffer can preferably be arranged between the guide frame and an adapter connected to the second arm. This buffer has the task of interrupting the vibration and structure-borne bridge to the mobile device.
- Fig. 1 shows the overall representation of a compression device in
- FIG. 2 shows a vibrating roller, partly in section, with a guide frame
- Fig. 3 shows a vibrating roller with a guide frame in different
- Fig. 5 shows the overall representation of a compression device in
- Fig. 7 shows a hydraulic circuit for the vibration drive and Fig. 8 is a side view of the vibratory roller with elastic
- FIG. 1 shows a mobile device 10 in the form of a caterpillar vehicle, on which a movement device 20 is arranged, on the free end of which a vibration roller 60 is attached.
- the mobile device 10 is located on a plateau 2, from where the slope 1 is processed by means of the vibrating roller 60.
- the mobile device 10 has an undercarriage 11 equipped with chains, on which a bogie 12 is rotatably mounted about a vertical axis 14.
- a driver's cab 13 and the associated drive devices for the mobile device are arranged on the bogie 12.
- a counterweight 15 is attached to the rear of the bogie. If necessary, an additional motor 16 can be attached to the rear of the bogie 12, which then has the task of driving the vibrating roller 60 via an oil line.
- the movement device 20, which can be pivoted about a first horizontal pivot axis 32, is fastened on the bogie 12.
- the movement device 20 consists of a cantilever 21 which, in the embodiment shown here, has a total of two arms 22 and 23 which are pivotally connected to one another about a first and a second horizontal axis 32 and 33.
- Two actuating devices 28 and 29 in the form of lifting cylinders are provided for moving the boom 21, the first lifting cylinder 28 being articulated on the bogie 12. It is also possible to provide three arms.
- the boom 21 is thus pivoted about the first pivot axis 32 as a whole, and different positions of the individual arms 22 and 23 relative to one another are possible via the pivot axis 33.
- the vibration roller 60 is a 4-
- Quick change device 40 an adapter 41 and the guide frame 42 connected.
- a scraper 50 is attached to a bracket 51 at the front end of the guide frame 42. This wiper is explained in more detail in connection with FIG. 3.
- the guide frame 42 which will be described in more detail in connection with FIG. 2, is fork-shaped and, in the illustration shown here, extends in the direction of the mobile device 10.
- This frame 42 with the associated vibrating roller 60 is pivotably mounted about the third pivot axis 34, so that when the boom 21 is extended, an additional movement of the vibratory roller 60 is possible.
- This movement is brought about by the third actuating device 30, which is also a lifting cylinder, which is articulated at the joint articulation point 37 on the pivot lever 25 and the connecting rod 26.
- the distance of the third pivot axis 34 from the axis of rotation 67 of the vibrating roller 60 is essentially predetermined by the length of the guide frame 42.
- the vibratory roller is shown in detail.
- the guide frame 42 is fastened to the adapter 41 and has a connecting element 43 and a cross member 44 to which lateral frame parts 45a and 45b are fastened.
- the vibration roller 60 Between these frame parts 45a and 45b is the vibration roller 60, which is equipped with a padfoot drum 61, but can also be equipped with a flat drum.
- the internal structure of the vibratory roller 60 is known per se from the prior art.
- the connection from the side frame parts 45a, 45b to the vibration roller 60 takes place on the side of the travel drive 64 via the roller crossbars 62a, b and the oscillating elements 63a, b and on the side of the vibration drive 66 via the cross members 68a and 68b and the oscillating elements 63c and 63d.
- the cross members 68a, b and 62a, b fastened to the side frame parts 45a, b can be referred to as stationary parts and the parts located between the oscillating elements 63a-d as oscillating parts.
- the vibrating parts in particular the vibrating roller 60, are moved in operation by the vibrator 65, which leads to the known compaction effect of the soil.
- the traction drive 64 is connected to an associated drive device via oil lines 70a, 70b. Accordingly, the vibration drive 66 is also connected to a drive device via oil lines 71a and 71b. All oil lines 70a, b, 71a, b can, for example, be connected to the additional motor 16 if one wants to be independent of the motor of the mobile device 10.
- the driving operation of the vibration roller 60 can be carried out.
- the roller can move towards the movable device 10 or move away from it (see FIG. 1).
- the lifting cylinder 30 for the movement of the 4-point joint can remain blocked and the lifting cylinders 29 and 28 can be in the floating position, i.e. both piston sides of the actuators 28 and 29 are relieved.
- the boom 21 can thus bend upwards via the axes 32 and 33.
- the contact pressure of the vibrating roller 60 is increased by the inherent weight forces of the boom 21 and the accessories of the vibrating roller 60.
- the vibrating roller 60 can also be moved in that the movement device 20 is moved in and out, which is done by actuating the lifting cylinders 28 and 29.
- the alignment of the guide frame 42 can be maintained by actuating the lifting cylinder 30.
- the vibrating roller 60 or its drive 64 would be operated in idle mode.
- the oil lines 70a, b are coupled to one another by means of a suitable circuit, and the oil in the travel drive 64 is at a Roller movement is pumped in the circuit and acts as lubrication.
- the drive 64 has only the function of a bearing.
- roller movement can be done with and without roller drive to the movable device 10 and away from the movable device 10 in the form that with the aid of a floating position (piston rod side and counter-piston rod side of the hydraulic cylinder are connected to the oil tank without pressure) in the cylinder 30 the roller can swing about the hinge point 34 via the frame 42.
- the articulation point 34 only needs to be moved in or out at an appropriate height from the floor with the aid of the boom 21 according to FIG. 1.
- a wiper holder 51 is arranged at right angles, to which a first wiper 50 is attached.
- a corresponding holder is also arranged on the other side frame part 45b, which cannot be seen in the illustration shown here.
- the stripper 50 extends over the entire width of the roller.
- a second scraper 52 is attached to a scraper holder 53.
- the arrangement of the wipers 50, 52, as can be seen on the right, is chosen such that, even with this extreme pivoting position, no soil can accumulate on the vibrating roller 60 when wiping.
- Two wipers 50, 52 are provided so that the vibrating roller, when it is moved in two directions of rotation, can be cleaned.
- Figs. 4a-c the compression device is shown in different working positions.
- the mobile device is on one Plateau 2 is positioned and the boom 21 is in the folded position.
- embankment 1 which at the lower end merges into a depression 4 and then into a depression 3.
- Fig. 4b it can be seen that the boom 21 has been extended, the vibrating roller 60 having been moved from top to bottom over the slope 1.
- the guide frame 42 has been brought into a vertical position via the 4-point joint, so that the vibrating roller 60 can be moved into the trough 4 unhindered by any components. This process does not require that the mobile device be moved.
- the embankment 1 can be compacted by actuating the drive of the vibrating roller 60 with the vibratory drive switched on and cylinders 28 and 29 in the floating position, or by moving the boom 21 and operating the vibratory roller at idle speed.
- FIG. 4c Another situation is shown in FIG. 4c, in which the mobile device 10 is in a depression 3 and the embankment 1 is to be processed from below.
- the method of operation corresponds to the method of working which is related to the FIGS. 4a and 4b. It should also be added that even when the boom 21 is extended, the upper part of the slope 1 and possibly parts of the plateau 2 can also be machined due to the pivotability of the guide frame 42.
- a further possibility of moving the vibrating roller 60 is also given when the movement device 20 is in the position according to FIG. 1 or FIG. 5 and one of the lifting cylinders 28 or 29 is set to the floating position. In this situation, the travel drive can take place via the undercarriage 11. However, a large plateau is required.
- FIG. 5 shows the device according to a further embodiment.
- the second arm 23 Guide frame 42 rigidly attached.
- the 4-point joint shown in FIG. 1 with the associated actuating device is omitted. A particularly simple embodiment is thereby achieved.
- FIG. 6 A detailed illustration of the additional motor 16 can be seen in FIG. 6.
- the counterweight 15 On the undercarriage 11, of which only the frame is shown, the counterweight 15 is arranged at the rear end. On this counterweight
- the additional motor 16 is hung with its housing. If there is no counterweight, the additional motor can also be attached to a suitable frame part at the rear. Eyelets 18a and 18b are arranged on the top of the housing for assembly purposes. In addition to the attachment to the centering pin 17, one or more screw connections 72 are provided in the lower region of the counterweight 15. These screw connections are accessible through an opening 19 in the housing of the additional motor 16.
- FIG. 7 shows a hydraulic diagram for a continuously adjustable hydraulic reduction gear 80.
- a reduction gear is necessary if the oil quantities required for the drive 66 of the vibratory roller differ from that of the excavator pump 5.
- the excavator pump 5 drives the motor 81 via the line 6, which is connected to the pump 82 via an adjusting member 83.
- the adjusting member can work according to the principle of infinitely variable speed adjustment or according to the principle of swallowing quantity adjustment. Both versions mean that the flow ratio of motor 81 to pump 82 can be set to the required amount.
- the partial flow received by the pump 82 is fed to the motor 66, which drives the vibration drive, via the line 71a and via the line 71b and the line 9 together with the oil quantity coming from the dam valve 84 into the oil container 85.
- pressure x flow rate in motor 81 pressure x flow rate in pump 82.
- a flow divider can also be used.
- An elastic buffer 54 is shown in FIG. 8 between the strippers 50 and the stripper holders 51.
- the strippers 50 are pretensioned during the installation by means of slot adjustment. This ensures that the roller 60 vibrating in the frame 42 also experiences a wiping effect in every operating situation without bending the wiper holders 54.
- rubber buffers 46 can be provided between the frame 42 and an adapter 41 'which is connected to a second arm 23 and a connecting rod 26.
- the function of these buffers is to interrupt the structure-borne noise and vibration bridge between the vibrating roller 60 and the mobile device and to compensate for lateral canting in use.
- Axis of rotation a, b traverse a, b oil lines a, b oil lines
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Agronomy & Crop Science (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Machines (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Glass Compositions (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT98919116T ATE255659T1 (en) | 1997-03-20 | 1998-03-19 | COMPACTION DEVICE |
AU72081/98A AU7208198A (en) | 1997-03-20 | 1998-03-19 | Compacting device |
EP98919116A EP0901541B1 (en) | 1997-03-20 | 1998-03-19 | Compacting device |
DE59810317T DE59810317D1 (en) | 1997-03-20 | 1998-03-19 | COMPRESSION DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19711649.3 | 1997-03-20 | ||
DE19711649A DE19711649A1 (en) | 1997-03-20 | 1997-03-20 | Compaction device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998042920A1 true WO1998042920A1 (en) | 1998-10-01 |
Family
ID=7824033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/001601 WO1998042920A1 (en) | 1997-03-20 | 1998-03-19 | Compacting device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0901541B1 (en) |
AT (1) | ATE255659T1 (en) |
AU (1) | AU7208198A (en) |
DE (2) | DE19711649A1 (en) |
WO (1) | WO1998042920A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003253123A1 (en) * | 2002-08-05 | 2004-02-25 | Daniel Paul Silcock | A refuse compactor |
DE10301576B4 (en) * | 2003-01-16 | 2006-07-27 | Lohmann & Stolterfoht Gmbh | Compact drive, especially for single drum compactors |
CA2739073A1 (en) * | 2008-10-14 | 2010-04-22 | Clark Equipment Company | Skid steer loaders with variable isolation on vibratory roller |
FR2977901B1 (en) * | 2011-07-13 | 2015-12-04 | Ile Medinger R D Soc Civ | METHOD OF COMPACTING SURFACE, TOOLS, MODULES AND MACHINERY FOR ITS IMPLEMENTATION |
DE102013006321A1 (en) | 2013-04-12 | 2014-10-16 | Bomag Gmbh | Construction machine for soil compaction, in particular compactor, bandage casing segment and padfoot |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3302540A (en) | 1964-03-02 | 1967-02-07 | Jr Gabriel Fuentes | Method and apparatus for compacting, rolling and finishing the earth |
US4454780A (en) * | 1981-07-06 | 1984-06-19 | Ingersoll-Rand Company | Vibratory mechanism |
US4490070A (en) * | 1979-09-07 | 1984-12-25 | Dumbco Inc. | Heavy-duty trench compactor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH552101A (en) * | 1972-12-19 | 1974-07-31 | Domenighetti Domenico | MULTIPLE THICKENER OPERATING MACHINE MADE OF THREE OR MORE ARTICULATED GROUPS FOR THE COMPACTION OF THE SOIL. |
US4269535A (en) * | 1979-04-27 | 1981-05-26 | Earl W. Sornsin | Earth working implement control system |
DE3411866A1 (en) * | 1984-03-30 | 1985-10-10 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | LOEFFEL EXCAVATOR |
-
1997
- 1997-03-20 DE DE19711649A patent/DE19711649A1/en not_active Withdrawn
-
1998
- 1998-03-19 WO PCT/EP1998/001601 patent/WO1998042920A1/en active IP Right Grant
- 1998-03-19 DE DE59810317T patent/DE59810317D1/en not_active Expired - Lifetime
- 1998-03-19 AT AT98919116T patent/ATE255659T1/en not_active IP Right Cessation
- 1998-03-19 EP EP98919116A patent/EP0901541B1/en not_active Expired - Lifetime
- 1998-03-19 AU AU72081/98A patent/AU7208198A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3302540A (en) | 1964-03-02 | 1967-02-07 | Jr Gabriel Fuentes | Method and apparatus for compacting, rolling and finishing the earth |
US4490070A (en) * | 1979-09-07 | 1984-12-25 | Dumbco Inc. | Heavy-duty trench compactor |
US4454780A (en) * | 1981-07-06 | 1984-06-19 | Ingersoll-Rand Company | Vibratory mechanism |
Also Published As
Publication number | Publication date |
---|---|
ATE255659T1 (en) | 2003-12-15 |
DE59810317D1 (en) | 2004-01-15 |
AU7208198A (en) | 1998-10-20 |
EP0901541B1 (en) | 2003-12-03 |
EP0901541A1 (en) | 1999-03-17 |
DE19711649A1 (en) | 1998-09-24 |
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