EP3712331B1 - Dispositif d'outil de montage - Google Patents

Dispositif d'outil de montage Download PDF

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Publication number
EP3712331B1
EP3712331B1 EP20159171.6A EP20159171A EP3712331B1 EP 3712331 B1 EP3712331 B1 EP 3712331B1 EP 20159171 A EP20159171 A EP 20159171A EP 3712331 B1 EP3712331 B1 EP 3712331B1
Authority
EP
European Patent Office
Prior art keywords
attachment
housing
attachment tool
base frame
connecting portion
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
EP20159171.6A
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German (de)
English (en)
Other versions
EP3712331A1 (fr
Inventor
Rainer Schrode
Frank Edmaier
Tobias BERNER
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 Schrode AG
Original Assignee
MTS Schrode AG
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Publication date
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Publication of EP3712331A1 publication Critical patent/EP3712331A1/fr
Application granted granted Critical
Publication of EP3712331B1 publication Critical patent/EP3712331B1/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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/38—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight with means specifically for generating vibrations, e.g. vibrating plate compactors, immersion vibrators
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
    • 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 an attachment device according to the preamble of claim 1.
  • An attachment device in the form of an attachment compressor is from DE 20 2005 006 059 U1 known.
  • Such an attachment device is used as an excavator attachment, in particular in trench and pipeline construction.
  • quick-change devices and rotary heads they offer considerable potential for cost savings and for increasing work safety as a cost-effective changing device, because people do not have to stay in trenches and pits for compaction work.
  • More attachment devices are, for example, from the applicant DE 10 2008 006 211 B4 known. Depending on the intended use, various interchangeable attachments can be coupled to such attachment tool devices.
  • the attached attachments are monitored by means of sensors that detect the position or presence of coupling and locking elements and can output corresponding information to an operator, for example by means of a display.
  • a visual and/or acoustic warning message for example, can be issued to the operator.
  • the use of such a sensor system requires a great deal of design effort, since it is present Components must be adapted and the sensor system must be installed in the attachment tool device in a damage-resistant manner. Programming is also required. In addition, incorrect operation, which can lead to dangerous situations for an operator, for example, cannot be completely ruled out.
  • Another attachment tool for an excavator is, for example, from U.S. 9,926,677 known, which also comprises a compression plate, which is connected to a housing.
  • the object of the present invention is to create an attachment device that can be used as universally as possible, while at the same time having low acquisition and operating costs.
  • the attachment tool devices according to the invention generally have the advantage that they can have very different compactor plates.
  • the attachment device can therefore be used very flexibly in different usage situations, for example in narrow or wide trenches with a corresponding narrow or wide compactor plate, with differently shaped compactor plates, or with a different surface on the underside of the compactor plate.
  • a worn compactor plate can also be easily replaced, and other attachments, such as a screening bucket, can also be coupled.
  • the housing of the attachment tool device also includes an upper part.
  • the lower and upper parts are coupled to one another via buffer devices.
  • the lower part serves to connect the attachment tool; whereas the top includes the coupling with the excavator.
  • cast parts can have more complex geometries be realized, which in turn allows the deeper in the position of use arrangement of motor and / or imbalance generator.
  • mounts e.g. for a locking device
  • other mounts can be integrated directly into the cast part.
  • a bolt safety device in which the bolt can be moved hydraulically in particular.
  • a substantially one-piece cast part is to be understood in particular as configurations that are 60%, preferably 70%, preferably 80%, preferably 90% and preferably 100% formed as a one-piece cast part.
  • the remaining parts of the lower housing part can be provided as separate parts and can also be designed as cast parts or as stamped parts or other parts. These are preferably also metal parts. These parts can then be connected to the cast part in a material, non-positive or positive manner, in particular via welded or screwed connections.
  • the cast part can in particular have a base frame designed as a floor and two lateral plate-like longitudinal members, which extend upwards at an angle inclined outwards from the base frame in a position of use and connect to it, preferably at the lateral longitudinal edges of the base frame and a space between them lock in.
  • the inclination of the side members also results in particular from the technical casting requirements in addition to the requirements resulting from the use, which in particular should also allow use with a narrow compression plate, while at the same time providing sufficient stability during the transition to the excavator.
  • the base frame can have a more complex shape in order to accommodate the various components, such as the locking device. In cross-section, the base frame and longitudinal member form a U-shaped configuration, in particular with inclined legs that point outwards.
  • Recesses for the drive and the imbalance generator (exciter unit) can be implemented directly without additional processing steps, such as burning or cutting, so that the manufacture of the lower housing part is simplified.
  • curves and transitions can be better realized in cast parts.
  • complex geometric shapes that deviate from the pure plate shape can be produced without additional effort.
  • the cast part offers the possibility, in particular, of relocating the unit for generating imbalance and preferably also a drive for this purpose to the area of the base frame.
  • the recesses for the imbalance generator and/or drive extend into the base frame.
  • a locking device is provided as the locking device, there is no time-consuming screwing of the compressor plate to the housing, in particular the lower part.
  • a bolt is particularly robust in the tough everyday use of an attachment tool device, and it is easier to manufacture than, for example, a rotation lock.
  • the bolt has a conical active section. This facilitates the locking process (reduction of the risk of a blockage) and creates a secure mounting of the compressor plate on the housing (clamping effect).
  • a central bolt is provided, which is arranged essentially between the two longitudinal beams.
  • the longitudinal members preferably extend along the longer longitudinal sides, whereas the narrow sides preferably have no limitation in the vertical direction in the position of use.
  • the displacement path of the bolt essentially corresponds to the direction of the side members.
  • the bolt preferably does not protrude beyond the circumference of the housing, preferably of the lower part.
  • the locking device can be integrated into the base frame.
  • Such a configuration has the advantage that an unintentional loosening or falling of the attachment from the attachment device, e.g. as a result of incorrect operation, can be avoided since the safety device secures the attachment regardless of the locking state of the locking device on the attachment device. Even if the locking device is unlocked undesirably as a result of incorrect operation, for example when the attachment tool device is raised by an excavator arm, the risk of injury is significantly reduced in this way, since the attachment tool cannot, at least not completely, detach from the attachment tool device. This contributes to safety when operating attachment tool devices with interchangeable attachment tools.
  • a solution with high operational reliability (few components with a low risk of failure) is created, and at a comparatively low price.
  • complete detachment of the attachment tool in the event of incorrect operation (for example due to accidental actuation of a hand lever that actuates the locking device) can be avoided.
  • a simple primary safeguard can be created which can also be used as a retrofit solution.
  • the add-on tool device can be, for example, an add-on compactor.
  • the attachment tool can in particular be a compactor plate.
  • other components can also be coupled as add-on tools, for example a screening bucket.
  • the add-on tool device can have an imbalance generator, particularly when configured as an add-on tool device.
  • the vibrator can be driven by a hydraulic motor connected to a hydraulic port.
  • the safety device can be designed in such a way that it catches or intercepts the interchangeable attachment in a position that deviates from the position of the interchangeable attachment that is fixed on the housing.
  • the safety device can be designed as a catching device, with the interchangeable attachment being caught outside of its fixing position or fixing position on the attachment. This means that the safety device is not stressed or only negligibly stressed during proper operation (attachment tool correctly coupled to the attachment device), but only when it is actually necessary for safety reasons. Loads that are unnecessary per se or unnecessary wear and tear can be avoided, which contributes to a long service life of the safety device.
  • the safety device can expediently be designed so that it can be retrofitted. This allows not only retrofitting of existing attachment tool devices, but also replacement of the safety device if necessary (spare parts supply).
  • the safety device can in particular by attachment to the housing Attachment tool device can be retrofitted, for example by screwing or welding. It is particularly preferred if the safety device is connected to the housing in one piece, in particular by being part of the cast part, in particular part of the base frame.
  • the safety device can be designed as a catching element that is fastened or provided on the housing of the attachment tool device and is set up in such a way that it (to catch the attachment tool) interacts with a coupling section of the interchangeable attachment tool that serves to fix the interchangeable attachment tool on the housing of the attachment tool device.
  • a coupling section of the interchangeable attachment tool that serves to fix the interchangeable attachment tool on the housing of the attachment tool device.
  • a coupling section which is used for fixing to the attachment device and is therefore present in any case, is used on the attachment.
  • the catching element can partially encompass or reach behind the coupling section.
  • the catch element and the coupling section can be spaced apart and only rest against one another when the exchangeable attachment tool begins to fall down.
  • the catching element can, for example, have a hook-shaped cross section, with an opening being provided on the hook-shaped cross section, which is preferably oriented upwards (away from the fixed attachment).
  • the catch element can expediently be provided on a lower part of the housing, in particular on the base frame, in particular on a narrow side of the lower part of the housing.
  • This allows a constructively favorable load introduction Realize because the lower part, in particular the base frame, is designed to be stable and suitable for load transfer, since the attachment tool is also fixed and held there.
  • the type of coupling (hanging the attachment tool on one side and locking it on the other side) can be retained.
  • an attachment can be fixed in two positions rotated by 180° on the housing of the attachment.
  • the housing of the attachment device can have a first connection section that interacts with a first coupling section (in particular a cylindrical rod) of the attachment and a second connection section that interacts with a second coupling section (in particular a cylindrical rod) of the attachment.
  • the connecting sections are formed or attached to the housing of the attachment device and the coupling sections are formed or attached to the attachment. By coupling the connecting sections to the coupling sections, the attachment can be fixed to the housing of the attachment with the aid of the locking device.
  • the catching element can be arranged on the narrow side of the housing of the attachment tool device (hanging side), which faces away from the narrow side on which a bolt of the locking device serving to fix the attachment tool on the housing acts (locking side). This configuration does not impair the process of engaging and changing the attachment tool.
  • the catch element can expediently have a first section (proximal section) extending parallel to the underside of the housing part or obliquely away from the housing lower part and a second section (distal section) adjoining the first section, which is angled or curved relative to the first section.
  • the catching element is designed to be open at the top (away from the bottom) and closed at the bottom (towards the bottom). This enables the attachment to be reliably caught when it is released from the attachment tool device, since the catch element can catch the attachment even if there is a comparatively large release movement.
  • the catch element can have a hook-shaped cross section overall due to the first section and the second section.
  • the catch element can be arranged centrally in relation to the narrow side of the housing and/or the catch element can extend over a section of the narrow side of the housing.
  • the central arrangement of the catching element allows a pivoting movement of the attachment around the longitudinal axis of the coupling section, for example a cylindrical rod, but reduces the risk of (lateral) tipping towards the ends of the coupling section. If the catch element extends over a section of the narrow side of the housing, a sufficiently stable design of the catch element is created so that the attachment tool can be caught securely. In addition, a lateral tilting of the attachment to the ends of the coupling section can be counteracted.
  • the catch element(s) can, for example, extend over a range of 10 to 30 percent (together) of the width of the narrow side of the housing.
  • the provision of two is particularly preferred Catch elements on both sides of a longitudinal center axis of the housing, since this tilting can be avoided even more securely.
  • the catch element of the safety device can be designed as a catch hook. This enables the attachment tool to be caught safely and reliably in the event of an undesired release of the attachment tool from the attachment tool device.
  • two spaced-apart receiving sections for receiving a rigid holding element of a means of transport can be formed on the attachment. This simplifies handling of the attachment tool and also of the attachment tool device as a whole, since simple handling by means of a lifting device, for example a forklift, is possible by means of the receiving sections.
  • the receiving sections can be designed, for example, as recesses in a side plate of the attachment tool.
  • the latch preferably secures the second dome portion to the second connection portion.
  • the first coupling section is held on the first connecting section solely by the shape and orientation of the first connecting section, so that securing by the bolt provided according to the invention is only required on the second connecting section. This configuration is inexpensive and stable and allows the compressor plate to be quickly dismantled or assembled on the housing in everyday use.
  • the bolt is advantageously by a double-acting hydraulic cylinder by means of the hydraulic supply of the excavator operated.
  • high locking forces can be generated which hold the compression plate particularly securely on the housing, especially in conjunction with the conical active section.
  • Using the excavator's hydraulic supply eliminates the need for a separate power supply to lock the compressor plate to the housing. This makes the structure of the attachment device simpler and further costs are saved.
  • the imbalance generator interacts with a hydraulic motor that is connected to the hydraulic connection, and that a nonreturn valve is arranged between the second pressure connection and the hydraulic motor and blocks the hydraulic motor.
  • a nonreturn valve is arranged between the second pressure connection and the hydraulic motor and blocks the hydraulic motor.
  • the vibrator can operate in one direction of rotation and in another direction of rotation. Normally, this is achieved by the fact that the two pressure connections can be used either as a pressurized flow or as an unpressurized return. To nevertheless in normal operation the To be able to change the compression plate of the attachment tool device, an operating state of the attachment tool device is required in which the imbalance generator is not working. This is realized by an open/close valve, which interrupts the flow of hydraulic fluid to or from the hydraulic motor, thereby switching off the imbalance generator. Check valves, which can be opened hydraulically from the respective other pressure connection, ensure that the hydraulic lines are not completely depressurized or emptied when the system is switched off and the unbalance generator continues to run due to its mass inertia.
  • An attachment device carries in figure 1 overall reference numeral 10. It comprises a housing 12 which comprises a lower part 16 of the add-on compressor 10. Furthermore, an upper part 14 is provided. Upper part 14 and lower part 16 are connected to one another in a known manner by flexible buffer devices 18 .
  • An imbalance generator 20 is arranged in the lower part 16 and comprises, for example, a shaft with an eccentrically arranged mass. The Imbalance generator 20 is coupled to a hydraulic motor 21, by which imbalance generator 20 can be rotated.
  • a compressor plate 22 can be detachably fastened to the lower part 16 in a manner to be illustrated in more detail below.
  • the upper part 14 is connected by means of a rotary union 24 to a coupling part (not shown), which can be attached to an arm of an excavator, not shown.
  • the coupling part has hydraulic quick connectors (not shown) with which the attachment tool device 10 can be connected to a hydraulic supply of the excavator.
  • the upper part 14 also comprises two longitudinal supports 29a,b, the buffer devices 18 being provided between the longitudinal supports 28a,b of the lower part 16 and the longitudinal supports 29a,b of the upper part 14 and fixed to them.
  • the lower part 16 comprises two lateral longitudinal beams 28a and 28b, which adjoin a base frame 30 forming a base laterally and vertically and form a space between them.
  • the longitudinal members 28a and 28b are designed similarly, so that in the following, for the sake of simplicity, reference is essentially made to the longitudinal member 28a.
  • the base frame 30 and the longitudinal members 28a,b form a U-shaped position of use which is open at the top.
  • figure 3 shows the lower housing part 16 with the mounted longitudinal supports 29a, b of the upper part 14.
  • the in figure 3 The right axial end of the longitudinal member 28a has a slot-like recess 32. This runs essentially parallel to the compressor plate 22, but with a in the figures 1 and 2 lower edge 34 of the slot-like recess 32 runs obliquely downward toward the axial end of the longitudinal member 28a.
  • the in the figure 3 The left axial end of the longitudinal member 28a has a recess 36 which is open towards the compressor plate 22 and has an edge 38 running with a slight incline towards the compressor plate 22 .
  • the housing 12 has a recess 40 in the base frame 30 approximately in its axial center, in which a double-acting hydraulic cylinder is arranged.
  • a piston rod points in the direction of the recess 36 and is provided with a bolt-like latch 46 (cf figure 2 ) tied together. In the retracted state (not shown), this closes flush with the edge 38 of the recess 36 . In the in the figure 1 In the extended state shown, it protrudes significantly beyond the edge 38 of the recess 36 , ie protrudes into the recess 36 .
  • the upper side 48 of the section of the bolt-like bolt 46 protruding into the recess 36 is designed as a conical and flattened active section which is at an angle A relative to the longitudinal axis of the bolt-like bolt 46 (cf figure 3 ) having.
  • A is preferably about 8 to 12°.
  • the compression plate 22 has a flat bottom plate 50 which does the actual compression work during operation. Its rear end portions 52b slope upwards. The front end portion 52a is also formed flat in the plane of the bottom plate 50.
  • FIG. Two longitudinally extending side plates 54a and 54b are welded to the bottom plate 50 . Between these are in turn held two horizontal (in the position of use) and having a cylindrical cross-section rods 56a and 56b. 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 longitudinal members 28a and 28b of the lower part 16 of the Housing 12. The radii of the rods 56a and 56b also correspond to those of the two recesses 32 and 36.
  • the rod 56b is first inserted into the recess 32 with the bolt-like bolt 46 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. The bolt-like bolt 46 is now extended into the recess 36 . The rod 56a is clamped in the recess 36 by the conical active section 48 on the respective bolt-like bolt 46 .
  • the compression plate 22 is rigidly connected to the lower part 16 of the housing 12 of the attachment device 10 .
  • the recesses 32 and 36 form first and second connecting sections
  • the rods 56a and 56b form first and second coupling sections.
  • the lower part 16 is designed essentially as a one-piece cast part.
  • Lower part configurations 16 in which at least 60% of the lower part is designed as a one-piece cast part and, for example, other parts are connected to it to form the lower part, are also considered to be essentially a one-piece cast part. Due to the provision as a cast part, the shape can be improved compared to previously welded parts in such a way that the recesses 70 (here without the in figure 2 Cover 71 shown) for the imbalance generator 20 and preferably also for the motor in the position of use can be shifted further down into the base frame 30, so that the housing 12 can build flatter overall. Over and beyond Casting molds enable geometric shapes that cannot be achieved with burned-out parts that are welded together.
  • the upper edge of the base frame 30 is identified by the line provided with the reference number 31 .
  • the recess 70 for the imbalance generator lies at least in some areas below this line 31. In conventional configurations, the imbalance generator lies completely above the base frame 30.
  • ribs 72 can be formed on the housing 12.
  • the overall geometric shape of the housing 12 can be designed to be more complex overall and, in particular, it is possible to design the recess 40 for receiving the bolt in a way that nevertheless leaves the recess 70 for the unbalance generator and the motor in the area of the bottom end 74 of the base frame 30 of the housing 12 allows.
  • figure 2 The complex shape of the base frame 30 of the housing 12 can be seen, which can be approximated to a double-T shape, particularly when viewed from the bottom side. In this way, a saving in material can be provided with a design that is as low as possible at the same time.
  • a mechanical safety device 60 is also provided, which secures the attachment 22 against falling when the locking device on the attachment device 10 is unlocked or not correctly locked.
  • the securing device 60 is designed in such a way that it catches or catches the compressor plate 22 in a position that differs from the position fixed on the housing 12 Compressor plate 22 (see figure 1 ) differs.
  • the safety device 60 thus serves as a type of catching device, with the compression plate 22 being caught outside of the fixed position of the compression plate 22 on the housing 12 .
  • the safety device 60 is not or only insignificantly stressed during proper operation.
  • the safety device 60 is integral with the housing 12, here the base frame 30 is formed. In this case, the safety device 60 is designed in such a way that an adjustment of the compression plate 22 is not necessary.
  • Securing device 60 is embodied as a catch element 62 fastened to the lower part 16 of the attachment device 10, which is set up in such a way that it interacts with a coupling section 56b (rod 56b) to catch the attachment 10, namely when the compressor plate 22 separates from the housing 12 the attachment device 10 solves.
  • the catching element 62 is arranged on the lower part 16, in particular on a narrow side 64 of the lower part 16, namely on the base frame 30.
  • the catching element 62 is arranged on the narrow side 64 of the housing 12 (hanging side 64), which faces away from the narrow side 66 which serves to fix the compressor plate 22 to the housing 12 bolt 46 of the locking device 47 acts (locking side 66). In this way, the engagement process can be maintained as described above.
  • the catch element 62 has a first section 68 (proximal Section 68) and a second section 80 (distal section 80) adjoining the first section 68, which is curved or bent relative to the first section 68.
  • the second section 80 is followed by an opening 82 through which the rod 56b can be inserted into the catch element 62 when the compression plate 22 is coupled.
  • the catching element 62 With its two sections 68, 80, the catching element 62 has a hook-shaped cross section overall.
  • the catch element 62 is provided twice and is arranged in the middle on both sides of the longitudinal central axis of the housing 12 in relation to the narrow side 64 of the housing 12 . As already indicated above, the catch elements 62 are designed as catch hooks 62 .
  • Two spaced-apart receiving sections 76 for receiving a rigid holding element of a means of transport are formed on the compression plate 22 .
  • the receiving sections 76 are designed as recesses 76 in the longitudinal members 54a, 54b of the attachment tool 22.
  • the securing device 60 works as follows: the attachment of the attachment 22 to the attachment tool device 10 with the securing device 60 takes place as described above. If the attachment tool 22 is correctly positioned on the housing 16 and the locking device is locked (bolt 46 protrudes into the recess 36), the safety device 60 is not stressed. The rod 56b and the catch element 62 are then spaced apart from one another.
  • the compactor plate 22 begins to separate from the housing 12, for example as a result of misoperation of the locking device, the compactor plate 22 will begin to pivot relative to the housing 12 about the longitudinal axis of the rod 56b due to gravity.
  • the second and curved or bent section 80 ensures that the rod 56b does not "jump out” of the catch hook 62.
  • the attachment tool 22 or the compactor plate 22 thus undergoes a pivoting movement, but does not fall completely from the attachment tool device 10 . This promotes safety when operating such attachment tool devices.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Architecture (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Connection Of Plates (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (13)

  1. Dispositif formant outil de chantier (10), en particulier compacteur de chantier (10) pouvant être couplé à une pelle, muni d'une carcasse (12) comprenant une partie inférieure (16) et une partie supérieure (14) reliées par des dispositifs formant tampon (18) flexibles, et un outil de chantier (22) interchangeable, en particulier une plaque de compactage (22), dans lequel l'outil de chantier (22) peut être fixé de manière amovible à la carcasse (12) au moyen d'un dispositif de verrouillage, caractérisé en ce que la partie inférieure de carcasse (16) est réalisée essentiellement d'un seul tenant sous forme de pièce de coulée.
  2. Dispositif formant outil de chantier (10) selon la revendication 1, caractérisé en ce que la partie inférieure (16) présente un cadre principal (30) formant un fond et présente deux longerons (28a, b) latéraux.
  3. Dispositif formant outil de chantier (10) selon la revendication 1 ou 2, caractérisé en ce que la partie inférieure de carcasse (16) présente un ou plusieurs évidement(s) (40, 70) permettant d'accueillir un entraînement (moteur) et/ou un générateur de balourd.
  4. Dispositif formant outil de chantier (10) selon la revendication 3, caractérisé en ce que le ou les évidement(s) (40, 70) est/sont fourni(s) dans les longerons (28a, b) et/ou dans le cadre principal (30) et en particulier le cadre principal comprend au moins des sous-régions des évidements (40, 70).
  5. Dispositif formant outil de chantier (10) selon la revendication 4, caractérisé en ce que l'évidement (70) permettant d'accueillir le générateur de balourd et/ou l'entraînement s'étend au moins en partie dans la région du cadre principal (30), en particulier jusqu'à la région (74) située côté fond du cadre principal (30) .
  6. Dispositif formant outil de chantier (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de sécurité (60), qui protège l'outil de chantier (22) contre la chute lorsqu'il n'y a pas eu verrouillage du dispositif de verrouillage, est formé sur la carcasse (12), en particulier au niveau de la partie inférieure (16) et en particulier au niveau du cadre principal (30).
  7. Dispositif formant outil de chantier (10) selon la revendication 6, caractérisé en ce que le dispositif de sécurité est réalisé sous la forme d'un dispositif de capture (62), en particulier sous la forme d'un crochet de capture qui coopère avec une section de couplage (56a) du outil de chantier (22) interchangeable.
  8. Dispositif formant outil de chantier (10) selon la revendication 7, caractérisé en ce qu'un crochet de capture (62), en particulier central, ou deux crochets de capture (62) agencés de manière symétrique par rapport à l'axe médian longitudinal de la carcasse (12) est/sont fournis.
  9. Dispositif formant outil de chantier (10) selon la revendication 7 ou 8, caractérisé en ce que le dispositif de capture (62) est agencé sur un côté étroit (64) de la carcasse (12) qui est opposé au côté étroit (66) sur lequel agit un verrou (46), servant à l'immobilisation de l'outil de chantier (22) au niveau de la carcasse (12), du dispositif de verrouillage (47) .
  10. Dispositif formant outil de chantier (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de verrouillage est formé d'au moins un verrou (46) coulissant qui présente en particulier une section active conique (48) et est constamment sollicité dans la direction de verrouillage en cours de fonctionnement.
  11. Dispositif formant outil de chantier (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la carcasse (12) présente une première section de liaison qui coopère avec une première section de couplage (56b) de la plaque de compactage (22) et une seconde section de liaison qui coopère avec une seconde section de couplage (56a) de la plaque de compactage (22), en ce que la première section de liaison présente au moins un évidement en forme de fente (32) s'étendant au moins de manière essentiellement parallèle par rapport à la plaque de compactage (22) et la seconde section de liaison présente un évidement (36) ouvert par rapport à la plaque de compactage (22) et comprenant au moins un bord (38) s'étendant de manière essentiellement orthogonale par rapport à la plaque de compactage (22), et en ce que le verrou (46) bloque la seconde section de couplage (56a) au niveau de la seconde section de liaison.
  12. Dispositif formant outil de chantier (10) selon la revendication 11, caractérisé en ce que la première section de liaison est réalisée respectivement au niveau de certaines des extrémités axiales juxtaposées des longerons (28a, 28b) et la seconde section de liaison est respectivement réalisée au niveau des autres extrémités axiales juxtaposées.
  13. Dispositif formant outil de chantier (10) selon la revendication 11 ou 12, 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.
EP20159171.6A 2019-03-22 2020-02-25 Dispositif d'outil de montage Active EP3712331B1 (fr)

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EP3712331B1 true EP3712331B1 (fr) 2023-05-10

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DE20204439U1 (de) 2002-01-21 2003-06-12 AMMANN Verdichtung GmbH, 53773 Hennef Verdichtungsgerät
DE202005006059U1 (de) 2005-04-15 2005-06-23 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Anbauverdichter mit einstellbarer Erregermasse
DE102008006211B4 (de) 2008-01-26 2012-11-29 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Anbauverdichter
AU2009100444A4 (en) 2009-05-12 2009-06-11 Jaws Buckets & Attachments Pty Ltd Double Locking Quick Hitch
US9926677B1 (en) * 2016-09-26 2018-03-27 Caterpillar Inc. Constant down force vibratory compactor
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