US3393014A - Attachment for an earth-moving machine - Google Patents

Attachment for an earth-moving machine Download PDF

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Publication number
US3393014A
US3393014A US540767A US54076766A US3393014A US 3393014 A US3393014 A US 3393014A US 540767 A US540767 A US 540767A US 54076766 A US54076766 A US 54076766A US 3393014 A US3393014 A US 3393014A
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US
United States
Prior art keywords
cutting
machine
wheel
tooth
working
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
US540767A
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English (en)
Inventor
Jr Leonhard Ascher
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.)
LEONHARD ASCHER JR
Original Assignee
Leonhard Ascher Jr.
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Filing date
Publication date
Application filed by Leonhard Ascher Jr. filed Critical Leonhard Ascher Jr.
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Publication of US3393014A publication Critical patent/US3393014A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/121—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with non-powered tools, e.g. rippers
    • 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
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Definitions

  • an attachment for an implement carrier of an earth-moving machine comprises a digging tooth attachable to the implement carrier and having a cutting edge including a slot extending normal to the cutting edge.
  • a cutting wheel having a peripheral cutting edge is rotatably supported in the slot by means of a pin extending through the branches of the tooth as defined by the slot.
  • the cutting edges of the tooth and the wheel are preferably in alignment.
  • This invention relates to earth-moving machines, and more particularly to working apparatus for road construction machines for the loosening of hard building ground.
  • the working of hard building ground for example, the removal of stony or rocky subsoil or the breaking up of old road surfaces, meets with difliculties.
  • the customary machines for ground leveling such as bucket loaders, power shovels or the like, are used which are provided with working members more or less in the form of sharp-edged teeth.
  • tearing teeth which are formed like barbs bent in the working direction. These tearing teeth are driven into the building ground by means of the weight of the machine or by hydraulic means and then drawn through the building ground by the movement of the machine. The building ground is then torn up so that it is in irregular pieces which can be taken away.
  • a further drawback consists in that the torn up building ground, according to the strength of the stone, is in completely irregular pieces.
  • the result may be, when undisturbed rock is worked, large stone pieces, or when road surfaces are broken up, slabs of large surface dimensions.
  • Such unwieldy pieces often entail an imperfect utilization of loading space, or cannot be loaded at all and must be broken up on the spot.
  • grooves are pressed into the ground, whereby frequently at the same time the stone bordering the grooves cracks due to its brittleness. It is then an easy matter to take up and load the material already loosened or jutting out between the grooves, by means of a conventional bucket loader.
  • Several cutting wheels may be arranged next to one another the spacing of which is adjustable on an implement carrier. This has the advantage that several parallel grooves can be cut in the building ground.
  • the spacing of the cutting wheels depends primarily on the hardness of the building ground. With very hard and tough stone as small a spacing as possible is selected.
  • the arrangement has the further advantage that when partial repair of road surfaces is to be made, for the subsequent digging of sewer or cable channels in road surfaces, the dimensions of the surface to be worked can be maintained by adjustment of the outer cutting wheels to a suitable distance. By the cutting of grooves on the surface boundaries, tearing out of the edges is no longer possible.
  • the invention further provides for the cutting tool to be formed as a roller provided with cutting members, whereby the cutting members are in one piece with the roller or may be shrunk as rings thereon.
  • a cutting roller is suitable in particular for the breaking up of road surfaces requiring repair and is drawn over the surface to be worked in a manner similar to a smoothing roller.
  • the roller is preferably made of solid material so that due to its Weight the penetration of the cutting member into the road surface is rendered possible.
  • the spacing of the cutting members on the roller again depends substantially on the hardness of the building ground to be treated.
  • the roller may of course also be formed hollow, but is then suitably connected to the hydraulic means of the building machine.
  • FIG. 1 shows a perspective view of a bucket loader with cutting wheels mounted in the teeth of the bucket
  • FIG. 2 is a diagrammatic view of a building machine with a tearing tooth inserted in an implement carrier and a cutting wheel mounted in the tearing tooth;
  • FIG. 3 is a perspective view of a bucket of a power shovel the teeth of which are equipped with cutting wheels;
  • FIG. 4 is a perspective view of the working tooth of a bucket or a scoop
  • FIG. 5 is a side view of an implement shaft with a cutting wheel mounted thereon;
  • FIG. 7 is a perspective view of a cutting tool formed as a roller
  • FIG. 8 is a section of FIG. 7;
  • FIG. 9 shows an edge view of a cutting wheel
  • FIG. 10 shows a plan view of a modification of the cutting wheel.
  • the bucket 3 has on the front side a number of working or excavating teeth 4 which, as can be seen in particular from FIG. 4, are generally wedge-shaped and terminate in cutting edges 5.
  • the blunt rear end of each tooth 4 is exchangeably secured on the bucket 3. Suitable mounting means are well known and need not be described more in detail.
  • the working tooth 4 has a lengthwise slot 6 starting at the cutting edge 5 and extending perpendicular to the same.
  • a cutting wheel 8 having a cutting edge 9 is rotatably mounted in slot 6 by means of a bolt 7.
  • the diameter of the cutting wheel 8 and the location of bolt 7 in respect of the depth of the slot are advantageously so selected that the cutting edge 9 of wheel 8 is aligned with the cutting edge 5 of the working tooth 4.
  • a crushing or cracking device 14 for the loosening and breaking up of rocky building ground or road surfaces is inserted in the implement carrier 12.
  • the traveling or working direction of the machine is toward the right as seen in FIG. 2; that is, in the reversing direction of the machine.
  • the device 14 consists essentially of a shaft 15 the lower part 16 of which is bent forward (as seen in the working direction) so that a kind of barb results. Tearing or digging teeth 17 are exchangeably mounted on this lower part of the shaft. Mounting means suitable for the purpose need not be described further, as they are well known.
  • a cutting wheel 18 is mounted on a bolt 19, the cutting edge being advantageously in line with the cutting edge of the tearing tooth.
  • This type of mounting of the cutting wheel 4 18 is in principle the same as that of the cutting wheel 8 (see FIG. 4).
  • FIGS. 5 and 6 show an auxiliary device 30 detachabl secured, in a manner similar to the crushing device 14 shown in FIG. 2, to a raisable and lowerable implement carrier 31.
  • the device comprises a bar 32 and a holder 34 secured to the bar by screw bolts 33.
  • the holder is formed by two bearing plates 35 arranged spaced apart from one another. The plates are bored below their middles to receive a bolt 36 threaded at its ends.
  • the bolt 36 serves as an axle for a cutting wheel 37 placed thereon with clearance and clamped on both sides, for example, by crown nuts 38 secured by cotter pins if necessary.
  • the cutting wheel 37 has a cross section decreasing in thickness slowly from the hub to the cutting edge so that the wheel is capable of sustaining the stresses to which it is operationally subjected.
  • auxiliary device 30 The construction of the auxiliary device 30, the mounting of the shaft 32 on the implement carrier 31 and the bearingof the cutting wheel 37 can, of course,-be changed in various respects, depending upon the type of machine, the construction of the implement carrier, the type of the stresses, etc.
  • the exemplified embodiment represents a construction which has proved to be advantageous up till now in practice.
  • several cutting wheels are arranged next to one another. These may be mounted on the axle of an individual auxiliary device having a construction similar to FIGS. 5 and 6, but with a longer axle, or several auxiliary devices may be mounted next to one another in an implement carrier.
  • FIGS. 7 and 8 a cutting device 40 is shown which consists essentially of a roller 41, cutting member 42 thereon and two supporting arms 43 for suspension of the device on a construction machine.
  • the roller 41 is rotatably mounted on bolts 44 fixedly connected to the supporting arms 43.
  • the cutting members 42 which in the illustrated embodiment are formed as cutting rings, may be in one piece with the roller or shrunk on the same or secured on the roller by fastening means acting in an equivalent manner.
  • the roller 41 advantageously is solid so that due to its own weight, it imparts to the cutting members the necessary pressure upon the ground to be worked upon; With very hard stone it is preferable to utilize the existing or special hydraulic means of the machine to act upon the roller, which in such case may be made hollow.
  • the width of the roller and the spacing of the cutting members depend primarily on the working width, but the choice of a narrow spacing of the cutting rings may also be advantageous with very hard stone.
  • the cutting edge of the cutting wheels or rings may be fiat, or may be triangular as shown in FIG. 8.
  • the rotation of the cutting device is in all embodiments obtained by its pressure on the ground to be worked and the simultaneous movement of the machine.
  • the cutting or pressing of the cutting tool into the ground is etfected, as already mentioned, by the weight of the machine, the existing or special hydraulic means of the machine, or by the dead weight of the auxiliary device coupled to the machine.
  • the material for the cutting members depends on the strength of the stone or other material to be worked on, but since in spite of the rolling movement of the cutting members, impact stresses cannot be excluded, a forged tough steel, such as a nickel alloy steel, the surface of which if necessary may be hardened, for example, by tempering, is advisable.
  • the tooth is preferably given a width greater than the width usually given such teeth, or the tooth may have a correspondingly thickened cross section.
  • a cutting tool according to the invention permits a so-called tandem operation of the machine.
  • a cutting tool is mounted on one side of the machine, while on the other side a shovel, for example, is mounted so that in one direction of travel, grooves are pressed into the ground and in the opposite direction loosened stone can be taken up by the shovel.
  • An attachment for an implement carrier of an earthmoving machine comprising in combination:
  • a digging tooth fixedly attachable to the implement carrier, said tooth having at one end a cutting edge including a slot extending normal to said cutting edge;
  • a mounting pin extending crosswise through the branches of the tooth as defined by said slot and rotatably supporting said wheel within said slot.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Soil Working Implements (AREA)
US540767A 1965-07-30 1966-04-06 Attachment for an earth-moving machine Expired - Lifetime US3393014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0049882 1965-07-30

Publications (1)

Publication Number Publication Date
US3393014A true US3393014A (en) 1968-07-16

Family

ID=6937110

Family Applications (1)

Application Number Title Priority Date Filing Date
US540767A Expired - Lifetime US3393014A (en) 1965-07-30 1966-04-06 Attachment for an earth-moving machine

Country Status (12)

Country Link
US (1) US3393014A (de)
AT (1) AT263646B (de)
BE (1) BE684794A (de)
CH (1) CH449529A (de)
DE (1) DE1634691B1 (de)
ES (1) ES329662A1 (de)
FI (1) FI45279C (de)
FR (1) FR1451720A (de)
GB (1) GB1093758A (de)
LU (1) LU51627A1 (de)
NL (1) NL6610700A (de)
SE (1) SE314637B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001394A1 (en) * 1979-01-05 1980-07-10 C Posciri Roller cutter
US4475602A (en) * 1982-12-23 1984-10-09 Gerstner Norman G Roller equipped earthworking member
US4910891A (en) * 1988-06-20 1990-03-27 Construction Technology, Inc. Device for attaching earth-working tools to excavating equipment
EP1632450A2 (de) * 2004-09-06 2006-03-08 Liebherr-Hydraulikbagger GmbH Grab- oder Greifwerkzeug

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411081A (en) * 1982-01-15 1983-10-25 King Reginald D Trench compactor having a vibratory sheepsfoot assembly
DE102013208261A1 (de) * 2013-05-06 2014-11-06 Hamm Ag Bodenbearbeitungswalze für eine Bodenbearbeitungsmaschine
CN108265579B (zh) * 2018-03-07 2019-12-20 中建(福建)沥青工程有限公司 一种沥青路用路基铲平装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466135C (de) * 1928-10-02 Franz Tangermann Fahrzeug zum Loesen und Beseitigen von festen Bestandteilen auf Strassenoberflaechen
DE521979C (de) * 1931-04-01 Eduard Meyer Pickmeissel fuer Schraemmaschinen
US1831116A (en) * 1928-07-05 1931-11-10 De Witt C Huntley Road roller
US2804294A (en) * 1955-07-05 1957-08-27 Everett P Meagher Road shaving equipment having an adjustable disc housing
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine
US2935308A (en) * 1959-06-08 1960-05-03 Andrew K Zorn Rotary paving cutter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US556513A (en) * 1896-03-17 Earth-excavating apparatus
US1791865A (en) * 1928-07-03 1931-02-10 Bert M Fordyce Disintegrating apparatus for road-surfacing materials
FR772391A (fr) * 1933-03-02 1934-10-27 Const Sa Des Atel Machine sylvicole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466135C (de) * 1928-10-02 Franz Tangermann Fahrzeug zum Loesen und Beseitigen von festen Bestandteilen auf Strassenoberflaechen
DE521979C (de) * 1931-04-01 Eduard Meyer Pickmeissel fuer Schraemmaschinen
US1831116A (en) * 1928-07-05 1931-11-10 De Witt C Huntley Road roller
US2804294A (en) * 1955-07-05 1957-08-27 Everett P Meagher Road shaving equipment having an adjustable disc housing
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine
US2935308A (en) * 1959-06-08 1960-05-03 Andrew K Zorn Rotary paving cutter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001394A1 (en) * 1979-01-05 1980-07-10 C Posciri Roller cutter
US4304440A (en) * 1979-01-05 1981-12-08 Posciri Charles L Roller cutter
US4475602A (en) * 1982-12-23 1984-10-09 Gerstner Norman G Roller equipped earthworking member
US4910891A (en) * 1988-06-20 1990-03-27 Construction Technology, Inc. Device for attaching earth-working tools to excavating equipment
EP1632450A2 (de) * 2004-09-06 2006-03-08 Liebherr-Hydraulikbagger GmbH Grab- oder Greifwerkzeug
US20060048851A1 (en) * 2004-09-06 2006-03-09 Bernd Wager Digging or gripping tool
EP1632450A3 (de) * 2004-09-06 2006-03-15 Liebherr-Hydraulikbagger GmbH Grab- oder Greifwerkzeug
US7357163B2 (en) 2004-09-06 2008-04-15 Liebherr- Hydraulikbagger Gmbh Digging or gripping tool

Also Published As

Publication number Publication date
LU51627A1 (de) 1966-09-26
FI45279C (fi) 1972-04-10
DE1634691B1 (de) 1971-05-27
FR1451720A (fr) 1966-01-07
FI45279B (de) 1971-12-31
AT263646B (de) 1968-07-25
SE314637B (de) 1969-09-08
GB1093758A (en) 1967-12-06
BE684794A (de) 1967-01-03
CH449529A (de) 1967-12-31
NL6610700A (de) 1967-01-31
ES329662A1 (es) 1967-06-01

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