EP2083123B1 - Compresseur de montage - Google Patents

Compresseur de montage Download PDF

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Publication number
EP2083123B1
EP2083123B1 EP20080018930 EP08018930A EP2083123B1 EP 2083123 B1 EP2083123 B1 EP 2083123B1 EP 20080018930 EP20080018930 EP 20080018930 EP 08018930 A EP08018930 A EP 08018930A EP 2083123 B1 EP2083123 B1 EP 2083123B1
Authority
EP
European Patent Office
Prior art keywords
compressor
hydraulic
valve
pressure
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20080018930
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German (de)
English (en)
Other versions
EP2083123A3 (fr
EP2083123A2 (fr
EP2083123A9 (fr
Inventor
Rainer Schrode
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTS Maschinentechnik Schrode AG
Original Assignee
MTS Maschinentechnik Schrode AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by MTS Maschinentechnik Schrode AG filed Critical MTS Maschinentechnik Schrode AG
Publication of EP2083123A2 publication Critical patent/EP2083123A2/fr
Publication of EP2083123A3 publication Critical patent/EP2083123A3/fr
Publication of EP2083123A9 publication Critical patent/EP2083123A9/fr
Application granted granted Critical
Publication of EP2083123B1 publication Critical patent/EP2083123B1/fr
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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
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/967—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of compacting-type tools

Definitions

  • the invention relates to a cultivation compressor according to the preamble of claim 1.
  • a cultivation compressor of the type mentioned is from the DE 20 2005 006 059 U1 known.
  • Such a cultivation compressor is used as a dredger additional equipment, especially in trench and pipeline construction.
  • quick-change devices and turrets they provide a cost-effective replaceable device with considerable potential for cost savings and increased occupational safety. because people's time to dig in trenches and pits can be eliminated.
  • the EP 1 536 068 A2 describes a compactor device which can be coupled to an excavator, wherein in the upper part for coupling to an excavator arm at least one buffer device for vibration decoupling and a rotating device is provided, wherein the buffer device is arranged outside the rotary device.
  • Object of the present invention is to provide a cultivation compressor, which can be used as universally as possible, while low acquisition and operating costs.
  • the cultivation compressor according to the invention has the advantage that it can have very different compressor plates.
  • the attachment compactor can therefore be used very flexibly in different situations of use, for example in narrow or wide trenches with corresponding narrow or wide compactor plate, with differently shaped compressor plates, or with a different surface on the underside of the compactor plate. Even a worn compressor plate can be easily replaced, and it can also other implements, such as a sifting spoon coupled become.
  • the inventively proposed bolt lock eliminates a time-consuming screwing the compressor plate to the housing.
  • Such a bar is also particularly robust in the hard everyday use of a mounted compressor, and it is easier manufacturable than, for example, a rotation lock.
  • the latch has a conical working section.
  • the locking process is facilitated (reducing the risk of blockage) and a secure mounting of the compressor plate created on the housing (clamping effect).
  • the bolt is constantly acted upon in operation in the locking direction.
  • the add-on compactor is always coupled with the excavator without play.
  • the housing comprises a first connecting portion, which cooperates with a first coupling portion of the compressor plate, and a second connecting portion, which cooperates with a second coupling portion of the compressor plate, wherein the first connecting portion at least one at least substantially parallel to the compressor plate extending slot-like recess and the second connection portion has a recess open to the compressor plate with at least one edge extending substantially orthogonal to the compressor plate, and wherein the latch secures the second coupling portion to the second connection portion.
  • the first coupling section is therefore held on the first connecting section solely by the shape and orientation of the first connecting section, so that only the second connecting section requires securing by the latch provided according to the invention.
  • the housing may have two lateral side members, wherein at each of the adjacent axial ends of the side members of the first connecting portion and at the other adjacent axial ends of each of the second connecting portion is formed. This lowers the manufacturing costs of the attached compactor and ensures a robust construction.
  • the two dome sections each extend in the transverse direction and have at least substantially cylindrical cross-section.
  • dome sections come in the simplest case, two transverse rods in question, but also cylindrical pin can be used.
  • the thus designed dome sections are robust and inexpensive manufacturable.
  • the bolt is advantageously actuated by a double-acting hydraulic cylinder by means of the hydraulic supply of the excavator.
  • high locking forces can be generated, which hold the compressor plate - especially in interaction with the conical effective section - particularly secure to the housing.
  • the use of hydraulic power to the excavator makes a separate power supply to lock the compressor plate to the housing obsolete. As a result, the structure of the attachment compactor is easier and it will save further costs.
  • the cultivation compressor with at least one hydraulic connection with a first pressure port, a second pressure port and a leakage port for connection to the hydraulic supply of the excavator, wherein between the hydraulic cylinder and the hydraulic connection, a cross-valve is connected.
  • the cross valve can be operated either manually or electrically, for example, from the cab of the excavator.
  • the double-acting hydraulic cylinder can be brought either in its extended position or in its retracted position, being connected by the cross valve in one position of a pressure chamber of the hydraulic cylinder with a pressure port and the other pressure chamber to the leakage port, and in the another position of the cross valve the reverse circuit is realized.
  • An inlet and a return line thus suffice for the actuation of the bolt in the two required directions.
  • the corresponding add-on compactor therefore builds comparatively easy.
  • an inlet-side pressure connection of the cross-valve is connected to an outlet of an OR valve, of which a first input to the first pressure port and a second input to the second pressure port is connected.
  • a check valve may be arranged, which opens to the hydraulic cylinder. This ensures that the bolt, even when the hydraulic pressure is insufficient to open the lowering brake valve, is acted upon in the closing direction during operation.
  • the unbalance generator comprises a hydraulic motor which is connected to the hydraulic port, and that between the second pressure port and hydraulic motor, a check valve is arranged, which blocks to the hydraulic motor.
  • a check valve is arranged, which blocks to the hydraulic motor.
  • the unbalance generator can operate in one direction of rotation and in another direction of rotation. This is normally realized by the fact that the two pressure ports can be used either as a pressurized flow or as a non-pressurized return. Nevertheless, in order to change the compressor plate of the attachment compactor in normal operation, an operating state of the add-on compactor is required in which the unbalance generator does not work. This is realized by an open / close valve which interrupts the flow of hydraulic fluid to or from the hydraulic motor, thereby shutting off the unbalance generator. By check valves, which are hydraulically alssteubar from the other pressure port, it is ensured that the hydraulic lines are not completely depressurized or emptied when switching off and continuing because of its inertia unbalance.
  • a cultivator carries in FIG. 1 overall, the reference numeral 10. It comprises a housing 12, which in turn comprises an upper part 14 and a lower part 16. Upper part 14 and lower part 16 are connected to each other in a known manner by flexible buffer means 18. On the lower part 16 of the housing 12, an unbalance generator 20 is arranged, which comprises, for example, a shaft with an eccentrically arranged mass. The unbalance generator 20 is coupled to a non-visible hydraulic motor, by means of which the unbalance generator 20 can be set in rotation. At the lower part 16, a compressor plate 22 can be releasably secured in a manner to be shown in more detail. The compressor plate 22 is in FIG. 1 indicated only by dash-dotted lines.
  • the upper part 14 of the housing 12 is connected to a coupling part 26 by means of a rotary leadthrough 24, which can be attached to an arm of an excavator, not shown.
  • the coupling part 26 has hydraulic quick connections, not shown, with which the cultivation compressor 10 can be connected to a hydraulic supply of the excavator.
  • the longitudinal member 28a has approximately in its axial center a recess 40 in which a double-acting hydraulic cylinder 42 is arranged.
  • a piston rod 44 points in the direction of the recess 36 and is connected to a bolt-like bolt 46 (cf. FIGS. 1 . 2 and 4 ) connected. This includes in the retracted state flush with the edge 38 of the recess 36 from. In the in the FIGS. 1 and 2 shown extended state, he is clearly on the edge 38 of the recess 36 via, so protrudes into the recess 36 inside.
  • the upper side 48 of the protruding into the recess 36 portion of the bolt-like bolt 46 is formed as a conical and flattened operative portion, the angle to the longitudinal axis of the bolt-like bolt 46 an angle A (cf. FIG. 2 ) having.
  • A is preferably about 8 to 12 °.
  • the compactor plate 22 (cf. FIGS. 5 and 6 ) has a flat bottom plate 50, which performs the actual compression work during operation. Their front and rear end portions 52a and 52b extend obliquely upward. On the bottom plate 50 are two in the FIGS. 5 and 6 vertical and longitudinal side panels 54a and 54b are welded. Between these are again two in the FIGS. 5 and 6 horizontal and cylindrical cross-section having rods 56 a and 56 b held. The distance between the two bars 56a and 56b corresponds exactly to the distance between the inner radii (without reference numerals) of the two recesses 32 and 36 in the side rails 28a and 28b of the lower part 16 of the housing 12. The radii of the bars 56a and 56b correspond to those the two recesses 32 and 36th
  • the rod 56b is first inserted into the recess 32 when the bolt-like latch 46 is retracted. Then, the compressor plate 22 on the one hand and the housing 12 on the other hand are pivoted relative to each other about the axis of the rod 56b until the rod 56a is completely received against the upper edge of the recess 36. Now, as will be shown in more detail below, the two double-acting hydraulic cylinder 42 is operated so that the bolt-like latch 46 extends into the recess 36. By the conical effective portion 48 on the respective bolt-like bolt 46, the rod 56 a in the Recess 36 jammed. Thus, the compressor plate 22 is rigidly connected to the lower part 16 of the housing 12 of the attachment compressor 10. In that regard, the recesses 32 and 36 form first and second connecting portions, and the rods 56a and 56b first and second coupling portions. To disassemble the compressor plate 22 is proceeded in the reverse order.
  • the attachment compressor 10 has in the coupling part 26 above the rotary feedthrough 24 to a hydraulic port 58, which comprises a first pressure port 60, a second pressure port 62 and a leakage port 64.
  • the two pressure ports 60 and 62 are, according to the circuit of the hydraulic supply of the excavator, optionally used as a pressurized flow connection or as a non-pressurized return connection.
  • the first pressure port 60 is connected via an adjustable throttle 66 to a port 68 of the hydraulic motor 70, which drives the unbalance generator 20.
  • a connection 72 of the hydraulic motor 70 is connected to the second pressure connection 62 via a spring-loaded non-return valve 74 blocking the hydraulic motor 70. Parallel to the terminals 68 and 72, a spring-loaded check valve 73 is connected. The hydraulic motor 70 is further connected to the leakage port 64.
  • the first pressure port 60 is further connected to a first input 76 of an OR valve 78, whose second input 80 is connected to the second pressure port 62.
  • An outlet 81 of the OR valve 82 leads to an inlet-side pressure port 82 of a cross-valve 84.
  • a first outlet-side connection 88 of the cross-valve 84 leads to a first pressure chamber 90 of the hydraulic cylinder 42.
  • a second outlet-side connection 92 of the cross-valve 84 is connected to a second pressure chamber 94 of the hydraulic cylinder 42.
  • a lowering brake valve 96 is arranged, which is hydraulically controlled by the pressure at the first outlet-side connection 88 and at the second outlet-side connection 92.
  • Hydraulically parallel to the lowering brake valve 96 a spring-loaded check valve 98 is arranged, which opens to the hydraulic cylinder 42 out.
  • the cross valve 84 is actuated so that the first pressure chamber 90 is under pressure.
  • the hydraulic supply of the excavator is switched so that the second pressure port 62 is used as a pressurized flow.
  • the check valve 74 the supply of the hydraulic motor 70 is disabled, so that the unbalance generator 20 comes to a standstill.
  • the inlet-side pressure port 82 is pressurized by the OR valve 78, so that by a corresponding operation of the cross-valve 84 now the second pressure chamber 94 can be pressurized, whereby the bolt-like latch 46 withdraws from the recess 36.
  • the hydraulic supply of the excavator is switched so that again the first pressure port 60 is used as a pressurized flow, causing the hydraulic motor 70 and with it the unbalance generator 20 are rotated again.
  • the hydraulic cylinder 42 is constantly acted upon in the locking direction.
  • FIG. 8 Main difference of in FIG. 8 shown hydraulic circuit to that of FIG. 7 is that the hydraulic motor 70 can be selectively operated in both directions of rotation. This is achieved in that the hydraulic supply of the excavator is switched so that either the first pressure port 60 is used as a pressurized flow and the second pressure port 62 as a non-pressurized return or the second pressure port 62 as a pressurized flow and the first pressure port 60 as a non-pressurized return.
  • spring-loaded check valves 100a and 100b which form a bypass when the corresponding line section is arranged in the return line.
  • a check valve 102 a, 102 b is arranged, which opens to the hydraulic motor 70 out.
  • the check valve 102a is controlled by the pressure at the second pressure port 62, the check valve 102b by the pressure at the first pressure port 60.
  • an open / close valve 104 is arranged between the second pressure port 62 and the hydraulic motor 70.
  • the open / close valve 104 is closed, whereby the hydraulic motor 70 and thus the rotation of the unbalance generator 20 are stopped.
  • the inlet-side pressure port 82 of the cross-valve 84 remains pressurized.
  • the hydraulic motor 70 If the hydraulic motor 70 is switched off by the excavator, the unbalance generator 20 and the hydraulic motor 70 continue to turn slightly due to their inertia. In this operating state, the hydraulic motor 70 operates as a pump.
  • the check valves 102a and 102b in this case prevent the pipes from being sucked empty. Instead, the hydraulic fluid is circulated through the check valve 73. Due to the pressure drop in the check valve 73, the hydraulic motor 70 is decelerated.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (12)

  1. Compresseur porté (10), qui peut être couplé à un excavateur; comportant un bâti (12), un vibrateur (20) et une plaque de compression (22), caractérisé en ce que la plaque de compression (22) est fixable de manière amovible au bâti (12) par au moins un verrou mobile (46), qui présente une section conique active (48).
  2. Compresseur porté (10) selon la revendication 1, caractérisé en ce que le verrou (46), en service, est constamment sollicité dans la direction de verrouillage.
  3. Compresseur porté (10) selon l'une des revendications précédentes, caractérisé en ce que le bâti (12) présente une première section de raccordement (32), qui coopère avec une première section de couplage (56b) de la plaque de compression (22), et une deuxième section de raccordement (36), qui coopère avec une deuxième section de couplage (56a) de la plaque de compression (22), en ce que la première section de raccordement présente au moins un évidement en forme de fente (32) au moins essentiellement parallèle à la plaque de compression (22) et la deuxième section de raccordement présente un évidement (36) ouvert en direction de la plaque de compression (22) avec au moins une bordure (38) essentiellement orthogonale à la plaque de compression (22), et en ce que le verrou (46) fixe la deuxième section de couplage (56a) au niveau de la section de raccordement (36).
  4. Compresseur porté (10) selon la revendication 3, caractérisé en ce que le bâti (12) présente deux pièces longitudinales latérales (28a, 28b), dans lesquelles au niveau de deux extrémités axiales adjacentes des pièces longitudinales (28a, 28b) respectivement la première section de raccordement (32) et au niveau des autres extrémités axiales adjacentes respectivement la deuxième section de raccordement (36) sont formées.
  5. Compresseur porté (10) selon l'une des revendications 3 ou 4, caractérisé en ce que les deux sections de couplage (56a, 56b) s'étendent respectivement dans la direction transversale et présentent au moins une section transversale essentiellement cylindrique.
  6. Compresseur porté (10) selon l'une des revendications précédentes, caractérisé en ce que le verrou (46) est actionnable par un vérin hydraulique à double effet (42) au moyen de l'alimentation hydraulique de l'excavateur.
  7. Compresseur porté (10) selon la revendication 6, caractérisé en ce qu'il présente au moins un raccord hydraulique (58) comportant un premier raccord de pression (60), un deuxième raccord de pression (62) et un raccord de fuite (64) pour la connexion avec l'alimentation hydraulique de l'excavateur, dans lequel entre les vérins hydrauliques (42) et le raccord hydraulique (58) est montée une vanne en croix (84).
  8. Compresseur porté (10) selon la revendication 7, caractérisé en ce qu'un raccord de pression côté admission (82) de la vanne en croix (84) est raccordé à une évacuation (81) d'une soupape à deux voies (78), dont une première entrée (76) est raccordée au premier raccord de pression (60) et une deuxième entrée (80) est raccordée au deuxième raccord de pression (62).
  9. Compresseur porté (10) selon l'une des revendications 6 à 8, caractérisé en ce qu'en amont d'un premier raccord du vérin hydraulique (42), pendant la pressurisation duquel le verrou (46) est amené dans sa position de verrouillage, est disposée une soupape de freinage de descente (96).
  10. Compresseur porté (10) selon la revendication 9, caractérisé en ce qu'une soupape de retenue (98) est disposée hydrauliquement en parallèle à la soupape de freinage de descente (96), laquelle soupape de retenue s'ouvre en direction du vérin hydraulique (42).
  11. Compresseur porté (10) selon l'une des revendications 6 à 10, caractérisé en ce que le vibrateur (20) comprend un moteur hydraulique (70), qui est raccordé au raccord hydraulique (58), et en ce qu'entre le deuxième raccord de pression (62) et le moteur hydraulique (70) est disposée une soupape de retenue (74 ; 102b) qui se ferme en direction du moteur hydraulique (70).
  12. Compresseur porté (10) selon la revendication 11, caractérisé en ce qu'entre le deuxième raccord de pression (62) et le moteur hydraulique (70) est disposée une soupape d'ouverture/fermeture (104), et en ce qu'entre le premier raccord de pression (60) et le moteur hydraulique (70) également est disposée une soupape de retenue (102a) qui se ferme en direction du moteur hydraulique (70), les deux soupapes de retenue (102a, 102b) pouvant être commandées hydrauliquement par respectivement l'autre raccord de pression (60, 62).
EP20080018930 2008-01-26 2008-10-30 Compresseur de montage Active EP2083123B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810006211 DE102008006211B4 (de) 2008-01-26 2008-01-26 Anbauverdichter

Publications (4)

Publication Number Publication Date
EP2083123A2 EP2083123A2 (fr) 2009-07-29
EP2083123A3 EP2083123A3 (fr) 2009-09-30
EP2083123A9 EP2083123A9 (fr) 2009-12-02
EP2083123B1 true EP2083123B1 (fr) 2014-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080018930 Active EP2083123B1 (fr) 2008-01-26 2008-10-30 Compresseur de montage

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Country Link
EP (1) EP2083123B1 (fr)
DE (1) DE102008006211B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9926676B1 (en) 2016-09-28 2018-03-27 Caterpillar Inc. Locking mechanism for removable base plate on vibratory compactor

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086085A1 (de) 2011-11-10 2013-05-16 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Anbaugerät für einen Bagger
DE102013200274B4 (de) 2013-01-10 2016-11-10 Mts Maschinentechnik Schrode Ag Verfahren zum Betreiben eines Anbauverdichters, sowie Speichermedium und Anbauverdichter
US9920491B1 (en) 2016-12-12 2018-03-20 Caterpillar Inc. Plate compactor with interchangeable edges
DE102018110465A1 (de) * 2018-05-02 2019-11-07 Mts Maschinentechnik Schrode Ag Anbauwerkzeugeinrichtung
DE102019107475A1 (de) * 2019-03-22 2020-09-24 Mts Maschinentechnik Schrode Ag Anbauwerkzeugeinrichtung
DE102020107501B4 (de) 2020-03-18 2024-02-01 Mts Schrode Ag Bagger-Anbauwerkzeuggerät
DE102022111975A1 (de) 2022-05-12 2023-11-16 Mts Schrode Ag Verfahren zur Bestimmung einer Auflast eines Baggeranbaugeräts sowie Bagger
DE102022117908A1 (de) 2022-07-18 2024-01-18 Mts Schrode Ag Anbauverdichter

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US3917426A (en) * 1974-06-05 1975-11-04 Hed Corp Vibratory compactor
US4224003A (en) * 1978-12-20 1980-09-23 Construction Technology, Inc. Backhoe mounted vibrating plate soil compactor
CA2234893A1 (fr) * 1998-04-15 1999-10-15 Glenn R. Palmer Mecanisme de fixation ajustable
DE19844313A1 (de) * 1998-09-28 2000-04-06 Peitz Hermann Hydraulisches Gerät wie Bagger, Rad- oder Kompaktlader
DE10049552C5 (de) * 2000-10-06 2010-02-18 Uhrig Straßen- und Tiefbau GmbH Anbringungs- und Verdichtungsvorrichtung
DE20204439U1 (de) * 2002-01-21 2003-06-12 Ammann Verdichtung Gmbh Verdichtungsgerät
DE10355172B3 (de) * 2003-11-26 2005-06-02 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Verdichtervorrichtung eines Baggers
DE102004014823B4 (de) * 2004-03-24 2006-12-07 Lehnhoff Hartstahl Gmbh & Co Schnellkupplungsvorrichtung an einem Baugerät mit Ventilzentrierung
DE202005006059U1 (de) 2005-04-15 2005-06-23 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Anbauverdichter mit einstellbarer Erregermasse
US7805865B2 (en) * 2006-01-13 2010-10-05 M-B-W, Inc. Vibratory exciter unit for interchangeable connection to various vibratory tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9926676B1 (en) 2016-09-28 2018-03-27 Caterpillar Inc. Locking mechanism for removable base plate on vibratory compactor

Also Published As

Publication number Publication date
EP2083123A3 (fr) 2009-09-30
DE102008006211B4 (de) 2012-11-29
EP2083123A2 (fr) 2009-07-29
EP2083123A9 (fr) 2009-12-02
DE102008006211A1 (de) 2009-08-06

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