EP0014776B1 - Schrämmausleger für Gestein - Google Patents

Schrämmausleger für Gestein Download PDF

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Publication number
EP0014776B1
EP0014776B1 EP19790200090 EP79200090A EP0014776B1 EP 0014776 B1 EP0014776 B1 EP 0014776B1 EP 19790200090 EP19790200090 EP 19790200090 EP 79200090 A EP79200090 A EP 79200090A EP 0014776 B1 EP0014776 B1 EP 0014776B1
Authority
EP
European Patent Office
Prior art keywords
cutting arm
wheel
arm according
members
groove
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
Application number
EP19790200090
Other languages
English (en)
French (fr)
Other versions
EP0014776A1 (de
Inventor
Honoré Joseph Lambot
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.)
Diamant Boart NV SA
Original Assignee
Lambot Honore Joseph
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
Application filed by Lambot Honore Joseph filed Critical Lambot Honore Joseph
Priority to EP19790200090 priority Critical patent/EP0014776B1/de
Priority to DE7979200090T priority patent/DE2961849D1/de
Publication of EP0014776A1 publication Critical patent/EP0014776A1/de
Application granted granted Critical
Publication of EP0014776B1 publication Critical patent/EP0014776B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
    • E21C25/28—Chains or chain guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/12—Lubricating devices specially designed for chain saws
    • 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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
    • B28D1/082—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws consisting of chain saws
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00

Definitions

  • the present invention relates to a lifting arm fitted to a rock cutting device.
  • the cutting devices are generally intended to make notches in rock layers, perpendicular to the felling front.
  • the cutting devices often comprise at least one endless cutting chain, composed of links carrying outwardly cutting elements and driven by a motor.
  • each cutting chain carrying guide pads is mounted on a chassis constituting a cutting arm, formed of parallel beams or plates carrying at their ends respectively a wheel drive and a deflection wheel.
  • DE-U-7 425 867 describes a cutting device similar to the devices described above.
  • the spray heads are arranged in the vicinity of the part of the chain driven towards the cutting zone and directed towards it. This arrangement is nevertheless difficult to achieve given the small thickness of the side walls of the lifting arm and the lack of space available between them.
  • the object of the invention is a new lifting arm of particularly simple construction, devoid of the aforementioned disadvantages.
  • the lifting arm according to the invention fitted to a rock cutting device and comprising parallel beams, at the ends of which are mounted respectively a drive wheel and a return wheel of an endless element carrying externally cutting elements and internally guide shoes sliding in a groove, is essentially characterized in that the endless element consists of a belt internally carrying guide shoes each consisting of a block extending over the entire width of the aforementioned groove, the bottom of which comprises injectors supplying a fluid which is spread there by the moving pads to form a sheet of fluid completely covering the bottom of this groove in order to allow the pads to slide on this sheet.
  • the injectors arranged in the bottom of the groove of each spar advantageously communicate with two hollow spaces which are located on either side of a core of each spar, these spaces being delimited by this side member and side plates and being connected to a water supply.
  • the anterior edge of the sliding face of each of these blocks against the bottom of the grooves is rounded.
  • these blocks In order to firmly secure the blocks of the guide shoes to the endless belt of the new lifting arm, these blocks each extend transversely over a large part of the width of this belt.
  • these grooves are each delimited by the external face of the corresponding spar and by two side plates projecting from this face.
  • the guide shoes are engaged on the periphery of each of these wheels, between two lateral guide plates whose spacing distance is substantially equal to the width of the side member grooves.
  • the mounting face of the communication wheel Mande, on which the blocks of the guide shoes are successively applied is provided with a rough coating for example of hard rubber.
  • the ends of these side members, adjacent to this wheel include fixed combs extending these side members into grooves corresponding circulars provided in this laying face of this idler wheel.
  • the lifting arm shown comprises a frame 1 in one piece in the form of a welded construction.
  • the frame of the chassis 1 consists essentially of an upper beam 2, a lower beam 3 and spacers 4 ..
  • the frame is covered on both sides by side plates 5 and 6.
  • the upper spar 2- is formed by an I-shaped beam whose inner and lower sole 7 is thicker than the outer and upper sole 8, which has an outer or upper face 9.
  • the lateral sheets 5 and 6 project towards the up the face 9 of the spar 2, so as to form an upper groove 10 whose width is thus equal to that of this spar 2.
  • the upper spar 2 comprises upper injectors 11 mounted in the upper sole 8 and communicating respectively with the two hollow spaces 12 and 13 located on either side of the spar 2 and delimited by this spar 2 and the sheets 5 and 6.
  • the space 12 is connected to a water supply, in particular by a lateral supply pipe not shown, carried by the sheet 5 and by a flexible pipe also not drawn.
  • the space 13 is connected to the same water supply by analogous means. In this way, the upper injectors 11 can bring water to the upper face 9 of the spar 10.
  • the lower spar 3 is formed by an identical I-shaped beam but arranged inversely. Therefore, the inner and upper sole 14 is pleated thicker than the outer or lower sole 15 which has an outer or lower face 16. The side plates 5 and 6 project downwards above the face 16 above, so as to form a groove. lower inverse to the previous 10.
  • the lower spar 3 is equipped with lower injectors identical to the previous 11 and mounted in the same way in the lower sole 15.
  • the lower injectors communicate respectively with the two opposite hollow spaces which are delimited by the spar 3 and the sheets 5 and 6 and which are connected to the water supply by means similar to the above.
  • the lower injectors can bring water flush with the lower face 16 of the spar 3.
  • the chassis 1 carries a control wheel or pulley 17 rotating around a rotation axis 18 under the action of a motor 19.
  • the control wheel 17 comprises a plain web 20 which has a uniform thickness and which is mounted by screws 21 on a plate 22.
  • the plate 22 is mechanically connected to the output shaft of the motor 19, the casing of which is secured to the side plate 6 by conventional means.
  • the circumferential periphery of the web 20 is lined with a rough coating 23, for example of hard rubber. It should be noted that the ends. semicircular side plates 5 and 6 exceed the garment 23 and therefore form therewith a hollow space 24 of rectangular radial section. This space 24 actually corresponds to the grooves of the side members 2 and 3 and is connected to these grooves.
  • the edges of the semi-circular ends of the sheets 5 and 6 carry a welded cover 25.
  • the opposite end of the chassis 1 carries a wheel or a return pulley 26 of the belt freely rotating about an axis of rotation 27 parallel to the previous 18.
  • the return wheel 26 is formed by a ring 28 mounted by by means of a ball ring 29 on a fixed hub made up of two discs 30 and 31 joined together by screws 32 and at the corresponding semi-circular ends of the sheets 5 and 6 by other screws 33.
  • the construction and the mounting of the deflection wheel 26 and of the abovementioned hub can easily be understood with reference to FIG. 4.
  • the semi-circular ends of the sheets 5 and 6 extend beyond the periphery of the ring 28 and therefore form with it a hollow space 34 of rectangular section.
  • This space 34 corresponds to the grooves of the side members 2 and 3 and is moreover connected to the grooves in question, using combs 35 well illustrated in FIG. 6.
  • the combs 35 are fixed to the corresponding ends of the beams constituting the side members 2 and 3 and their teeth are engaged with play in appropriate circular grooves 36 of the device of the ring 28.
  • the belt 37 On the drive wheels 17 and return 26 is mounted an endless belt 37 having a flat rectangular section.
  • the belt 37 internally carries guide shoes 38 and externally clamping plates 39 provided with transverse cutting elements 40.
  • the belt 37 is therefore movable along the longitudinal members 2 and 3 under the action of the motor 19.
  • the guide shoes 38 are parallelepipedal blocks of synthetic material. Each block extends over a large part of the belt 37 and practically over the entire width of the groove 10 longitudinal members 2 and 3.
  • the front edge 41 of the face of the block, which is opposite to that placed against the belt 37, is rounded as illustrated in FIG. 5.
  • each block is fixed to the belt 37 by fixing screws 42 inserting this belt 37 between this block and the clamping plate 39.
  • the cutting elements 40 are generally in diamond concretion and slightly protrude in transverse direction the clamping plate 39 and the belt 37.
  • the belt 37 When running, the belt 37 is moved along the side rails 2 and 3 and around the control wheels 17 and the return wheel 26.
  • the guide shoes 38 then slide in the grooves of the side rails 2 and 3 and bear without sliding against the garment 23 of the wheel 17 and the ring 28 of the wheel 26, between the marginal parts of the side plates 5 and 6.
  • water flows are brought by the upper injectors 11 and lower on the end faces 9 and 16 of the beams of the side members 2 and 3.
  • the injected water flows are spread over the external faces 9 and 16 and form there aquaplaning surfaces substantially reducing the friction of these pads 38 against these faces 9 and 16. In this way, the energy absorbed for the movement of the belt 37 is largely used for cutting rocks by the cutting elements 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (8)

1. Schrämausleger an einer Gesteinsschrämmaschine mit einem Rahmen (1), an dem Längsträger (2, 3) anliegen, an deren Enden ein Antribsrad (17) bzw. ein Umlenkrad (26) für ein endloses Organ (37) angebracht sind, auf dessen Außenseite Schneidelemente (40) und an dessen Innenseite Gleitschuhe (38) angeordnet sind, die in einer Rinne (10) geführt sind, dadurch gekennzeichnet, daß das endlose Organ als Treibriemen (37) ausgebildet ist, der an der Innenseite Gleitschuhe (38) aufweist, die jeweils die Form eines Blocks haben, der die gesame Weite der genannten Rinne (10) ausfüllt, an deren Boden (9 und 16) Einspritzdüsen (11) vorgesehen sind, die ein fließfähiges Medium (Fluid) heranführen, das von den Gleitschuhen (38) bei ihrer Bewegung dort ausgebreitet wird und eine Fluidschicht bildet, die die Rinne (10) vollständig überzieht, um das Gleiten der Gleitschuhe auf dieser Schicht zu ermöglichen.
2. Schrämausleger nach Anspruch 1, dadurch gekennzeichnet, daß die in den Böden (9, 16) der Rinne (10) angeordneten Einspritzdüsen (11) mit zwei Hohlräumen (12 und 13) in Verbindung stehen, die sich beiderseits eines Steges jedes Trägers (2) befinden und die durch diesen Träger (2) und durch Bleche (5 und 6) begrenzt und an eine Wasserversorgung angeschlossen sind.
3. Schrämausleger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorderkante (41) der Gleitfläche des Blocks jedes Gleitschuhs (38) an dem Boden (9 und 16) der Rinnen (10) abgerundet ist.
4. Schrämausleger nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Block jedes Gleitschuhs (38) sich in Querrichtung über einen großen Teil der Breite des Treibriemens (37) erstreckt.
5. Schrämausleger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rinne (10) des oberen bzw. unteren Längsträgers (2 bzw. 3) durch die Außenseite (9 bzw. 16) des jeweiligen Längsträgers und durch zwei Seitenplatten (5 und 6) begrenzt ist, die über diese Außenseite (9 bzw. 16) hinausragen.
6. Schrämausleger nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Gleitschuhe (38) am Umfang des Antriebsrades (17) bzw. des Umlenkrades (26) zwischen zwei seitlichen Führungsblechen (5 und 6) aufgenommen sind, deren gegenseitiger Abstand praktisch gleich der Weite der Rinne (10) der Längsträger (2 und 3) ist.
7. Schrämausleger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Auflagefläche des Antriebsrades (17), an der nie Blöcke der Gleitschuhe (38) nacheinander anliegen, mit einem rauhen Überzug (23) beispielsweise aus hartem Kautschuk versehen ist.
8. Schrämausleger nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die an das Umlenkrad (26) angrenzenden Enden der Längsträger (2 und 3) festehende Kämme (35) aufweisen, die die Längsträger (2 und 3) bis in zugeordnete Ringnuten (36) verlängern, die in die Anlagefläche für die Blöcke der Gleitschuhe (38) an diesem Rade (26) geschnitten sind.
EP19790200090 1979-02-22 1979-02-22 Schrämmausleger für Gestein Expired EP0014776B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19790200090 EP0014776B1 (de) 1979-02-22 1979-02-22 Schrämmausleger für Gestein
DE7979200090T DE2961849D1 (en) 1979-02-22 1979-02-22 Rock cutter jib

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19790200090 EP0014776B1 (de) 1979-02-22 1979-02-22 Schrämmausleger für Gestein

Publications (2)

Publication Number Publication Date
EP0014776A1 EP0014776A1 (de) 1980-09-03
EP0014776B1 true EP0014776B1 (de) 1982-01-20

Family

ID=8186274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790200090 Expired EP0014776B1 (de) 1979-02-22 1979-02-22 Schrämmausleger für Gestein

Country Status (2)

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EP (1) EP0014776B1 (de)
DE (1) DE2961849D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9110796U1 (de) * 1991-07-16 1991-11-14 Maschinenfabrik Korfmann Gmbh, 5810 Witten, De

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128264A1 (de) * 1981-07-17 1983-02-03 Maschinenfabrik Korfmann Gmbh, 5810 Witten Schraemarm an einer schraemmaschine
US4679541A (en) * 1984-10-05 1987-07-14 W. F. Meyers Company, Inc. Belt-configured saw for cutting slots into stone
BE1000418A4 (fr) * 1987-03-23 1988-12-06 Diamant Boart Sa Bras haveur.
DE3830047C1 (de) * 1988-09-03 1990-04-26 Maschinenfabrik Korfmann Gmbh, 5810 Witten, De
US5181503A (en) * 1991-06-26 1993-01-26 W. F. Meyers Company, Inc. Stone slab saw
DE9108725U1 (de) * 1991-07-16 1992-11-19 Maschinenfabrik Korfmann Gmbh, 5810 Witten, De
US6306372B1 (en) 2000-06-21 2001-10-23 Noville Inc. Oral hygiene compositions which mask the burn sensation and the astringency of eucalyptol and zinc
US10526891B2 (en) * 2018-03-29 2020-01-07 Diamond Stone Technologies Inc. Device and method for cutting quarry stone

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Publication number Priority date Publication date Assignee Title
DE687765C (de) * 1936-02-05 1940-02-05 Rudolf Hingst Dipl Ing Kreislaufschmiervorrichtung fuer Wellenlager
GB559380A (en) * 1942-08-14 1944-02-16 Thomas David Jones Means for reduction or suppression of dust in coal-cutting
GB563459A (en) * 1943-06-15 1944-08-15 Thomas David Jones Means for reduction or suppression of dust in coal-cutting
GB602406A (en) * 1945-10-15 1948-05-26 Pyrene Co Ltd Improvements relating to coal cutting
DE908296C (de) * 1950-08-03 1954-04-05 Eugen Moegling Kettensaegemaschine, deren Kette in Laufrinnen einer Fuehrungsschiene gefuehrt ist
DE895883C (de) * 1951-07-21 1953-11-05 N J Muschamp And Company Ltd Vorrichtung zum Verhindern der Staubbildung an Abbaumaschinen im Bergbau
DE1709786U (de) * 1954-09-15 1955-10-27 Eickhoff Geb Berieselungseinrichtung.
US3593700A (en) * 1968-10-03 1971-07-20 George P Kingsley Chain saw for sawing very hard material and method of sawing
US3746414A (en) * 1971-10-29 1973-07-17 Johnson Rubber Co Water lubricated stave bearing
AT323475B (de) * 1972-11-28 1975-07-10 Bryner Ag Lager für umlaufmaschinen
DE7425867U (de) * 1973-08-17 1974-11-14 Coal Ind Ltd Staubniederschlagsvorrichtung fur eine Bergwerksmaschine
CH598927A5 (de) * 1974-10-24 1978-05-12 Hans Bieri
US3929393A (en) * 1975-02-14 1975-12-30 William F Marantette Water-rubber bearing high speed drill spindle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9110796U1 (de) * 1991-07-16 1991-11-14 Maschinenfabrik Korfmann Gmbh, 5810 Witten, De

Also Published As

Publication number Publication date
EP0014776A1 (de) 1980-09-03
DE2961849D1 (en) 1982-03-04

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