EP0191336B2 - Anordnung bestehend aus Schlagaggregat und Trägereinheit - Google Patents

Anordnung bestehend aus Schlagaggregat und Trägereinheit Download PDF

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Publication number
EP0191336B2
EP0191336B2 EP86100968A EP86100968A EP0191336B2 EP 0191336 B2 EP0191336 B2 EP 0191336B2 EP 86100968 A EP86100968 A EP 86100968A EP 86100968 A EP86100968 A EP 86100968A EP 0191336 B2 EP0191336 B2 EP 0191336B2
Authority
EP
European Patent Office
Prior art keywords
unit
shaped elements
elements
carrier unit
shaped
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.)
Expired - Lifetime
Application number
EP86100968A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0191336A1 (de
EP0191336B1 (de
Inventor
Friedrich-Karl Dr.-Ing. Arndt
Karlheinz Fritz
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.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Fried Krupp AG Hoesch Krupp
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6262390&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0191336(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fried Krupp AG Hoesch Krupp filed Critical Fried Krupp AG Hoesch Krupp
Priority to AT86100968T priority Critical patent/ATE39519T1/de
Publication of EP0191336A1 publication Critical patent/EP0191336A1/de
Publication of EP0191336B1 publication Critical patent/EP0191336B1/de
Application granted granted Critical
Publication of EP0191336B2 publication Critical patent/EP0191336B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge

Definitions

  • the invention relates to an arrangement consisting of a carrier unit and a striking unit arranged within it, which is connected to the carrier unit via elastic damping elements which are effective in the direction of its axis upwards and transversely thereto and which contains a piston which can be moved in a cylinder in a translatory manner on an anvil-like tool .
  • the carrier unit is generally screwed to a connecting piece which is pivotally attached to the boom of a mobile carrier device.
  • a hydraulic hammer is supported as an impact unit axially against a box-shaped support unit via compression springs.
  • an elastic stop is provided to limit the hammer with little impact.
  • the hammer is guided in wear plates arranged on the carrier unit, so that the vibrations generated by the impact can be radiated unhindered via the housing or the carrier unit, which leads to a considerable acoustic pollution of the environment.
  • the invention has for its object to provide an arrangement with a striking unit and a carrier unit, in which even in extreme, i.e. the greatest forces occurring with such an arrangement, in particular also radial forces and when the impact unit is looked up without load, effective noise reduction and careful operation is possible.
  • the features characterized in claim 1 By connecting the side walls only with bolts, the end walls that are otherwise customary with support units can be dispensed with. However, this significantly reduces the wall area, which also reduces sound radiation.
  • the carrier unit has a significantly lower weight and is easy to manufacture and assemble. Accessibility to the impact unit has also been significantly improved. Due to the form elements aligned transversely to the axis of the impact unit, the elastic material of the damping elements arranged between them is only subjected to pressure in the main direction of stress both upwards and downwards, i.e. a type of load that is favorable for elastic material, resulting in a long service life for the damping elements.
  • the elastic material is only subjected to tensile and shear stresses transversely to the hammer axis in the area of lower loads. Since there is no mechanical or metallic limitation of the relative movement in the arrangement after the linearity range of the damping material has been exceeded, if the arrangement is properly dimensioned, metallic contact between the hammer and the carrier unit as the cause of disturbing noise and high wear is reliably avoided.
  • the hammer is reliably guided within the carrier unit even when the damping elements are installed without pretensioning.
  • a hydraulic hammer 2 provided with a chisel 1 is arranged in a guide or carrier unit 3.
  • the carrier unit 3 is in turn fastened to a connecting piece 4 which is fastened to a boom 5 of a carrier vehicle 6.
  • the boom 5 has a main arm 7 which is articulated on a main carrier 8.
  • the main carrier 8 is articulated in the carrier vehicle 6 and its angular position can be changed by a hydraulic cylinder 9.
  • the angular position of the main arm can be changed by a hydraulic cylinder 10.
  • An extension arm 11 is articulated to the free end of the main arm 7, the angular position of which can be changed with respect to the main arm by a hydraulic cylinder 12.
  • the connector 4 can be adjusted in its angular position relative to the extension arm 11 by a further hydraulic cylinder 13.
  • the chisel 1 can thus be attached to the material 14 to be reduced in wide areas at different heights, widths and angular positions by the described boom elements in the plane of the drawing, which at the same time represents the central plane of the boom 5.
  • the guide or carrier unit 3 has two side cheeks 16, which are each screwed to the connecting piece 4 via a flange 17.
  • the side walls 16 have bushes 18 with coaxial bores 19 in pairs at three points, in each of which there is a common bolt 20 which is axially fixed in the carrier unit 3 at each end with a roll pin 21.
  • FIG. 2 While the arrangement in FIG. 2 is shown in the same view as the arrangement in FIG. 1 attached to the carrier vehicle 6, the arrangement in FIG. 3 is shown in a section along the line III-III in FIG. 2. While the center line 23 shown in broken lines in FIG. 3 represents the main or longitudinal center plane of the arrangement, the center line 24 shown in broken lines in FIG. 2 corresponds to the transverse center plane.
  • the hammer 2 in which a percussion piston 26 movable in a cylinder 25 indicated by dashed lines in FIG. 2 acts pulsatingly on the chisel 1, has three through openings or holes 27, the arrangement or hole pattern of which corresponds to that of the bores 19 in covers the cheeks 16.
  • the through holes 27 have in the middle a cylindrical extension 29 delimited by collar-like shoulders 28 and the outside each has a chamfer 30.
  • the space between the cylindrical extension 29 of the respective opening 27 and the associated bolt 20 of the carrier unit 3 is filled by a damping element 31 made of flexible material. Overall, the arrangement has three elastic connections formed in this way between the carrier unit 3 and the hammer 2.
  • the bolts 20 with the damping elements 31 are pressed through the chamfers 30 into the bores 27 until the material of the damping elements 31 completely fills the cylindrical extension 29.
  • the essential forces occurring in the main median plane 23 between the hammer 2 and the carrier unit 3 can be transmitted correctly both with a vertical or - with respect to the chisel 1 and the cylinder 25 - axial component as well as with a horizontal or radial component become.
  • the elastic material has a progressive spring characteristic, which means that the transmitted force increases disproportionately compared to the deflection or the relative movement between the hammer 2 and the carrier unit 3, so that a change in the area of large forces only results in a slight change in the relative movement Has.
  • the - in relation to the bolts 20 - radial distance of the metallic parts between the hammer 2 and the bushes 18 of the carrier unit 3 is selected in such a way that metallic contact is reliably prevented even with the greatest forces to be expected.
  • the axial distance between the hammer 2 and the bushes 18, which in turn is related to the bolts 20, is also chosen to be so large that metallic contact does not take place even with the greatest forces to be expected with a component perpendicular to the main central plane 23.
  • a band-shaped jacket 32 made of sound-absorbing material is arranged between the side walls 16 of the carrier unit 3.
  • the jacket 32 which has openings 33, 34 for the passage of the hoses 35 for the hydraulic medium or for the passage for the chisel 1, is held by flanges 36 of the side walls 16 and is guided to the underside of the hammer 2.
  • the side walls 16 are covered with insulation mats 37 on their inside for further sound absorption.
  • the damping elements 31 are connected to the corresponding surfaces of the through opening 27 in the hammer 2 or the surface of the bolts 20 by means of frictional or frictional engagement, while the shoulders 28 of the openings 27 and the bushes 18 only have a partial positive fit on the sides to the damping elements 31.
  • the essentially hollow cylindrical damping elements 31 can, however, also be connected to the bolt 20 on their inner surface by an adhesive connection, as a result of which the spring characteristic ⁇ applied force as a function of the relative movement progresses progressively between hammer 2 and carrier unit 3 ⁇ .
  • the damping elements 31 and the insulating jacket 32 consist of rubber or a rubber-like material.
  • the insulation mats 37 can consist of a thermoplastic, flexible, plastic mixture enriched with specifically heavy fillers and having a density of the order of (2 ... 2.5) 103 kg / m3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Shovels (AREA)
  • Vibration Prevention Devices (AREA)
  • Tyre Moulding (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP86100968A 1985-02-13 1986-01-24 Anordnung bestehend aus Schlagaggregat und Trägereinheit Expired - Lifetime EP0191336B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100968T ATE39519T1 (de) 1985-02-13 1986-01-24 Anordnung bestehend aus schlagaggregat und traegereinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3504871A DE3504871C2 (de) 1985-02-13 1985-02-13 Gerät bestehend aus Trägereinheit und Schlagaggregat
DE3504871 1985-02-13

Publications (3)

Publication Number Publication Date
EP0191336A1 EP0191336A1 (de) 1986-08-20
EP0191336B1 EP0191336B1 (de) 1988-12-28
EP0191336B2 true EP0191336B2 (de) 1995-07-26

Family

ID=6262390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100968A Expired - Lifetime EP0191336B2 (de) 1985-02-13 1986-01-24 Anordnung bestehend aus Schlagaggregat und Trägereinheit

Country Status (4)

Country Link
EP (1) EP0191336B2 (ja)
JP (1) JPH0716895B2 (ja)
AT (1) ATE39519T1 (ja)
DE (1) DE3504871C2 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0447552A4 (en) * 1989-07-11 1991-12-18 Petr Yakovlevich Fadeev Striking device
JP2541389Y2 (ja) * 1990-03-07 1997-07-16 ホシザキ電機株式会社 食器洗浄装置
US5183316A (en) * 1991-09-23 1993-02-02 Esco Corporation Mounting bracket for a working device
US6058632A (en) * 1997-11-07 2000-05-09 Hawkins; Peter Arthur Taylor Tool holder with percussion member
JP4559156B2 (ja) * 2004-08-18 2010-10-06 株式会社東洋空機製作所 ブレーカ取付用ブラケット
US8714280B2 (en) 2007-02-07 2014-05-06 Robert Bosch Gmbh Vibration dampening for a power tool
US20120152581A1 (en) * 2010-12-18 2012-06-21 Caterpillar Inc. Hammer side buffer
CN104234109B (zh) * 2014-09-01 2016-06-01 山东天瑞重工有限公司 液压破碎锤

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB282188A (en) * 1926-10-18 1927-12-22 Riley Coventry Ltd Improvements in engine and gear box mountings
US2048256A (en) * 1933-09-15 1936-07-21 Gen Motors Corp Oscillating pivot joint unit
GB653982A (en) * 1948-08-19 1951-05-30 Wright Howard Clayton Improvements in flexible bearings or mountings
GB1419826A (en) * 1973-02-17 1975-12-31 Dobson Park Ind Excavating machines rock breaking machines and the like on a reproduction drum and removing it therefrom
FR2215293A1 (ja) * 1973-11-28 1974-08-23 Poclain Sa
JPS5337703U (ja) * 1976-09-04 1978-04-03
JPS5723115U (ja) * 1980-07-15 1982-02-05
JPS5920441U (ja) * 1982-07-30 1984-02-07 株式会社東芝 信号検出回路装置
DE8331703U1 (de) * 1983-11-02 1984-10-04 Henze, Heinrich, 1000 Berlin Hydraulischer aufbruchhammer

Also Published As

Publication number Publication date
EP0191336A1 (de) 1986-08-20
EP0191336B1 (de) 1988-12-28
DE3504871C2 (de) 1994-02-10
DE3504871A1 (de) 1986-08-14
JPS61188089A (ja) 1986-08-21
JPH0716895B2 (ja) 1995-03-01
ATE39519T1 (de) 1989-01-15

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