EP0182757B1 - Stone breaking apparatus - Google Patents
Stone breaking apparatus Download PDFInfo
- Publication number
- EP0182757B1 EP0182757B1 EP85850310A EP85850310A EP0182757B1 EP 0182757 B1 EP0182757 B1 EP 0182757B1 EP 85850310 A EP85850310 A EP 85850310A EP 85850310 A EP85850310 A EP 85850310A EP 0182757 B1 EP0182757 B1 EP 0182757B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- fastening means
- breaking apparatus
- stone
- stone breaking
- 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
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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
- 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 a stone breaking apparatus for mounting on the arm of a wheeled loader or similar vehicle.
- the apparatus is meant to serve as auxiliary equipment for splitting of large blocks of stone, where the apparatus comprises a fastening means with rapid release coupling for mounting on the arm, and an oblong cylinder to guide therein a sliding, hoistable weight or piston for fall engagement with a hardened impact tool disposed in the lower end section of the cylinder.
- WO-A-83/01977 discloses a rock breaking apparatus comprising a damping and biasing means between a fixed section and a movable section to absorb applied tool working forces transferred from a tool to the movable section and to provide a restoring force to the movable section for returning the section in return direction upon conclusion of the working stroke of the tool.
- This damping means comprises elastomeric members constantly in engagement with both the fixed section and the movable section.
- FR-A-2 215 293 discloses a hydraulic rapid reciprocating percussion hammer specially for fracturing concrete slabs and the like. This apparatus comprises damping means which does only allow for very short vibrating motions between the working tool and the holder means.
- a stone breaking apparatus as defined in the preamble of claim 1 is characterized in that the fastening means supports and guides the cylinder along a substantial but limited distance in the longitudinal direction of the cylinder by means of at least one externally of the cylinder mounted guiding element.
- the stone breaking apparatus is further provided with a rapid release coupling for simple mounting and dismounting to/from the arm of a wheeled loader or similar vehicle.
- Fig. 1 shows the stone breaking apparatus 1 which is adapted for mounting on the arm (not shown) of a wheeled loader or similar vehicle.
- the apparatus 1 is mounted on the vehicle's arm over the fastening means 4 by rapid release couplings 5.
- the apparatus 1 comprises a cylinder 2 for guidance of the weighted element 6.
- a hydraulic motor 16 drives a cable pull device 18 by means of a chain transmission 17.
- the cable pull device 18 is connected to the weighted element 6 by a wire cable 15 for hoisting the weight to an upper position in the cylinder 2.
- a disconnecting means (not shown) on the cable pull device 18 makes possible disconnection of the weighted element from the hoisting mechanism 18 for an approximate free fall within the cylinder 2.
- a hardened impact tool 7 is detachably infixed thereto.
- the impact tool has limited movability in the guide sleeve 12.
- Fig. 1 the guide sleeve 12 is shown infixed to the cylinder 2 by means of bolt connections. Between the lower flange on the cylinder 2 and the flange on the guide sleeve 12 are disposed one or more hard rubber liners 21.
- the impact tool's 7 movement is restricted by means of a blocking bolt 14, which bolt is fastened to the guide sleeve 12.
- the blocking bolt 14 engages with a worked groove in the upper part of the impact tool 7.
- Around the lower part of the cylinder 2 there is attached a reinforcing flange 19 extending along the circumference thereof.
- brackets 10, 11 for fastening one or more guide bars 3.
- a stopper 20 On the lower part of the guide bar 3 is provided a stopper 20.
- holders for example, in the form of H-beams, to anchor the upper section of one or more shock absorbers 8.
- holders On the fastening means 4 there are similarly provided holders, e.g. in the form of an H-beam, to anchor the lower section of one or more shock absorbers 8.
- the fastening means 4 is provided with guide elements 13 for sliding engagement with the guide bars 3.
- the stone breaking apparatus is brought to a suitable place on the stone block which is to be split.
- the apparatus is manoeuvred and positioned by means of the various functions which can be executed by the arm of a wheeled loader or similar vehicle.
- the cylinder 2 is positioned substantially vertically on the stone block. With the impact tool 7 resting against the stone block, the fastening means 4 is brought down toward, but not necessarily into, the stopper 20.
- the motor 16 is supplied with hydraulic fluid via hoses from the vehicle's hydraulic system. The hydraulic motor 16 drives the cable pull device 18 and thereby hoists the weighted element to the desired height.
- the height of the weighted element 6 in the cylinder is determined on the basis of the stone block to be split, based on both the size, form, and material character of the block.
- a disconnecting means or clutch in the cable pull device 18 makes possible a free-fall movement of the weighted element 6 in the cylinder 2.
- the weighted element 6 impinges on the hardened impact tool 7, and the shock-like impact thereof against the stone block splits the block. Any "residual forces" remaining after the stone is split are absorbed by the shock absorber 8. If the tool is inaccurately placed, or the stone block is able to be split considerably more easily than expected, the substantial portion of the impact is received by the shock absorber 8, so that the wheeled loader arm and its components are spared the direct stresses of the shock impact.
- the displacement of the cylinder 2 in relation to the fastening means 4 may be as much as 70-80 cm.
- the impact tool 7 and the cylinder 2 usually will be retarded rapidly down through the split stone, so that the stone breaking apparatus 1 might also be used without the shock absorber 8.
- the guide bar 3 must also be equipped with an upper stopper against which the cylinder 3 rests during movement of the apparatus 1 from one place to another.
- the stone breaking apparatus is used with the shock absorber, this takes up the weight of the cylinder 3 during transfer movement and thereby functions as an upper stopper.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Disintegrating Or Milling (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
- Pinball Game Machines (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Crushing And Grinding (AREA)
- Shovels (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
- The invention relates to a stone breaking apparatus for mounting on the arm of a wheeled loader or similar vehicle.
- The apparatus is meant to serve as auxiliary equipment for splitting of large blocks of stone, where the apparatus comprises a fastening means with rapid release coupling for mounting on the arm, and an oblong cylinder to guide therein a sliding, hoistable weight or piston for fall engagement with a hardened impact tool disposed in the lower end section of the cylinder.
- In stone breaking operations, there is during blasting always a certain proportion of the rock mass which is too large for further handling. For example, in a blasted rock mass to be sent through a crushing plant, there are always a number of stone blocks that are too large to be received by a stone crusher. Also, there are stone blocks too large for further transport. These must split up prior to further transport or processing. The apparatus could conceivably also be used in breaking or concrete decks, foundations and building elements which must be removed, either where blasting is not desirable or in inhabited areas where it is not allowed.
- This problem has previously been solved by means of a compressor/drilling hammer and by explosives, if necessary. This entails efficiency problems, which increase the costs per produced unit of mass. According to German published patent application 2,120,517, meanwhile, there exists a stone breaking apparatus adapted for mounting to the arm of a construction machine or similar vehicle. The stone breaking apparatus comprises an oblong cylinder for guiding a sliding and hoistable weight for direct or indirect impact against the stone block to be parted. This stone breaking apparatus, however, is permanently mounted to the arm of the construction machine. This means that, should the operator "miss" in directing the impact, or should the stone block be split substantially more easily than expected, the impact is transferred directly to the arm of the construction machine, which results in considerable stress on the arm and the components connected thereto.
- WO-A-83/01977 discloses a rock breaking apparatus comprising a damping and biasing means between a fixed section and a movable section to absorb applied tool working forces transferred from a tool to the movable section and to provide a restoring force to the movable section for returning the section in return direction upon conclusion of the working stroke of the tool. This damping means comprises elastomeric members constantly in engagement with both the fixed section and the movable section.
- FR-A-2 215 293 discloses a hydraulic rapid reciprocating percussion hammer specially for fracturing concrete slabs and the like. This apparatus comprises damping means which does only allow for very short vibrating motions between the working tool and the holder means.
- In the stone breaking apparatus according to the invention the drawbacks of the above prior art apparatus are eliminated. Experiments with a prototype have demonstrated that the apparatus of the invention breaks stone blocks of considerable size and functions entirely in accordance with its intended purpose.
- According to the invention a stone breaking apparatus as defined in the preamble of
claim 1 is characterized in that the fastening means supports and guides the cylinder along a substantial but limited distance in the longitudinal direction of the cylinder by means of at least one externally of the cylinder mounted guiding element. - In addition, between the cylinder and the fastening means there may be mounted one or more shock absorbers, the longitudinal axis thereof running substantially parallel with the longitudinal axis of the cylinder. The stone breaking apparatus is further provided with a rapid release coupling for simple mounting and dismounting to/from the arm of a wheeled loader or similar vehicle.
- The stone breaking apparatus will now be described in more detail by means of an embodiment example as illustrated in the attached drawings, where:
- Fig. 1 is a side view of the stone breaking apparatus according to the invention,
- Fig. 2 shows a horizontal section along the line 1-1 in Fig. 1, and
- Fig. 3 shows an enlarged side view of the lower section of the cylinder in Fig. 1.
- Fig. 1 shows the
stone breaking apparatus 1 which is adapted for mounting on the arm (not shown) of a wheeled loader or similar vehicle. Theapparatus 1 is mounted on the vehicle's arm over the fastening means 4 byrapid release couplings 5. Theapparatus 1 comprises acylinder 2 for guidance of theweighted element 6. Ahydraulic motor 16 drives acable pull device 18 by means of achain transmission 17. Thecable pull device 18 is connected to theweighted element 6 by awire cable 15 for hoisting the weight to an upper position in thecylinder 2. A disconnecting means (not shown) on thecable pull device 18 makes possible disconnection of the weighted element from thehoisting mechanism 18 for an approximate free fall within thecylinder 2. In the lower end section of thecylinder 2, a hardened impact tool 7 is detachably infixed thereto. The impact tool has limited movability in theguide sleeve 12. In Fig. 1 theguide sleeve 12 is shown infixed to thecylinder 2 by means of bolt connections. Between the lower flange on thecylinder 2 and the flange on theguide sleeve 12 are disposed one or morehard rubber liners 21. The impact tool's 7 movement is restricted by means of a blockingbolt 14, which bolt is fastened to theguide sleeve 12. The blockingbolt 14 engages with a worked groove in the upper part of the impact tool 7. Around the lower part of thecylinder 2 there is attached a reinforcingflange 19 extending along the circumference thereof. Onto the cylinder are attached twobrackets more guide bars 3. On the lower part of theguide bar 3 is provided astopper 20. To theupper bracket 10 are attached holders, for example, in the form of H-beams, to anchor the upper section of one or more shock absorbers 8. On the fastening means 4 there are similarly provided holders, e.g. in the form of an H-beam, to anchor the lower section of one or more shock absorbers 8. The fastening means 4 is provided withguide elements 13 for sliding engagement with theguide bars 3. - During operation, the stone breaking apparatus is brought to a suitable place on the stone block which is to be split. The apparatus is manoeuvred and positioned by means of the various functions which can be executed by the arm of a wheeled loader or similar vehicle. The
cylinder 2 is positioned substantially vertically on the stone block. With the impact tool 7 resting against the stone block, the fastening means 4 is brought down toward, but not necessarily into, thestopper 20. Themotor 16 is supplied with hydraulic fluid via hoses from the vehicle's hydraulic system. Thehydraulic motor 16 drives thecable pull device 18 and thereby hoists the weighted element to the desired height. The height of theweighted element 6 in the cylinder is determined on the basis of the stone block to be split, based on both the size, form, and material character of the block. A disconnecting means or clutch in thecable pull device 18 makes possible a free-fall movement of theweighted element 6 in thecylinder 2. The weightedelement 6 impinges on the hardened impact tool 7, and the shock-like impact thereof against the stone block splits the block. Any "residual forces" remaining after the stone is split are absorbed by the shock absorber 8. If the tool is inaccurately placed, or the stone block is able to be split considerably more easily than expected, the substantial portion of the impact is received by the shock absorber 8, so that the wheeled loader arm and its components are spared the direct stresses of the shock impact. - The displacement of the
cylinder 2 in relation to the fastening means 4 may be as much as 70-80 cm. When the stone is split, the impact tool 7 and thecylinder 2 usually will be retarded rapidly down through the split stone, so that thestone breaking apparatus 1 might also be used without the shock absorber 8. In that case theguide bar 3 must also be equipped with an upper stopper against which thecylinder 3 rests during movement of theapparatus 1 from one place to another. When the stone breaking apparatus is used with the shock absorber, this takes up the weight of thecylinder 3 during transfer movement and thereby functions as an upper stopper.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85850310T ATE44062T1 (en) | 1984-10-08 | 1985-10-04 | ROCK CRUSHING DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO844022 | 1984-10-08 | ||
NO844022A NO155410C (en) | 1984-10-08 | 1984-10-08 | Stone breaking. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0182757A1 EP0182757A1 (en) | 1986-05-28 |
EP0182757B1 true EP0182757B1 (en) | 1989-06-14 |
Family
ID=19887872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85850310A Expired EP0182757B1 (en) | 1984-10-08 | 1985-10-04 | Stone breaking apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0182757B1 (en) |
AT (1) | ATE44062T1 (en) |
DE (1) | DE3571054D1 (en) |
FI (1) | FI853869L (en) |
NO (1) | NO155410C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2948700B1 (en) * | 2009-07-30 | 2012-01-06 | Carrieres Et Travaux De Navarre | DEVICE FOR PRESSING A PROFILE |
CN104018540B (en) * | 2013-09-27 | 2016-03-16 | 上海工程技术大学 | A kind of gravity quartering hammer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2120517C3 (en) * | 1971-04-27 | 1980-11-13 | Hans-Joachim 4970 Bad Oeynhausen Kijewski | Rock crushing cannon |
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 (en) * | 1973-11-28 | 1974-08-23 | Poclain Sa | |
AU536689B2 (en) * | 1981-11-24 | 1984-05-17 | John Bennetto | Rock breaking apparatus |
-
1984
- 1984-10-08 NO NO844022A patent/NO155410C/en unknown
-
1985
- 1985-10-04 AT AT85850310T patent/ATE44062T1/en not_active IP Right Cessation
- 1985-10-04 DE DE8585850310T patent/DE3571054D1/en not_active Expired
- 1985-10-04 EP EP85850310A patent/EP0182757B1/en not_active Expired
- 1985-10-04 FI FI853869A patent/FI853869L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NO155410B (en) | 1986-12-15 |
EP0182757A1 (en) | 1986-05-28 |
FI853869L (en) | 1986-04-09 |
NO155410C (en) | 1987-03-25 |
ATE44062T1 (en) | 1989-06-15 |
NO844022L (en) | 1986-04-09 |
DE3571054D1 (en) | 1989-07-20 |
FI853869A0 (en) | 1985-10-04 |
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