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
  • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
  • E02F3/181—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels including a conveyor
• • 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
  • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
  • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
• • 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
  • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
  • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F5/00—Dredgers or soil-shifting machines for special purposes
  • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
  • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F7/00—Equipment for conveying or separating excavated material
  • E02F7/02—Conveying equipment mounted on a dredger

Definitions

• the invention relates generally to excavating machines of the type having a device
• bucket wheel trenchers for cutting the earth including bucket wheel trenchers, chain bar trenchers, trencher or trenchless
• a cutting plate carried on the trenching wheel or chain for breaking through rocky soils.
• Circular saws have
• the present invention provides a wheel excavating machine which includes a series
• Each plate is provided with one or
• the spikes are directed outwardly in the direction of rotation of the adjacent plates.
• the plates mounted on the periphery of the wheel may contain spade members which extend from
• each plate a leading edge of each plate and are angled slightly outward from the center of the excavating
• the excavator is equipped with an L-shaped lifting arm to which the excavating
• wheel assembly is mounted which allows the excavating wheel assembly and associated shoe
• a transverse conveyor is located
• a cleaning member is provided within the circumference of the wheel such that spoil carried over the top of the wheel may drop on the conveyor and be moved to the side of the trench being excavated.
• a shoe member follows the trenching wheel through the trench being excavated.
• the shoe member in cooperation with the L-shaped lifting arm provides a fulcrum for downward
• the drive unit is carried on wheels with tires which permit the machine to be transported under
• An additional object of the present invention is to provide an excavating machine
• FIG. 1 is a front elevational view of an excavating machine in accordance with
• FIG. 2 is a front elevational view of the excavating machine shown in FIG. 1 with
• FIG. 3 is a front elevational view of the excavating machine shown in FIG. 1 with
• FIG. 4 is a front elevational view of the excavating machine shown in FIG. 1 with
• FIG. 5 is a top perspective view of an L-arm assembly in accordance with the
• FIG. 6 is a bottom perspective view of the L-arm assembly shown in FIG. 5;
• FIG. 7 is a top perspective view of the L-arm assembly showing a slidable leg
• FIG. 8 is a top perspective view of the L-arm assembly shown in FIG. 7 showing
• FIG. 9 is a front elevational view of the supporting frame assembly and the wheel
• FIG. 10 is an end plan view of the rim assembly of the cutting wheel assembly in
• FIG. 11 is a top perspective view of an exemplary plate member showing the
• FIG. 12 is a section view of the plate member of Fig. 11 taken along line 12-12 of
• FIGS. 13A and 13B are diagrammatic views of a series of plate members mounted
• FIG. 14 is a perspective of a deflecting member of the invention carried on a
• FIG. 15 is a partial cross-sectional elevational view of the wheel assembly shown
• FIG. 16 is a front elevational view of an alternative cleaning member and wheel
• FIG. 17 is a top perspective view of a conveyor assembly in
• FIG. 18 is a bottom perspective view of the conveyor assembly shown in FIG. 17;
• FIG. 19 is a cross-sectional view of the endless conveyor belt shown in FIG. 17
• FIG. 20 is a cross-sectional view of the endless conveyor belt shown in FIG. 17
• FIG. 21 is a side elevational view of a shoe assembly and an adjustable groover
• FIG. 22 is a sectional front elevational view of the shoe assembly
• FIG. 23 is a top perspective view taken from the rear of the adjustable groover
• FIG. 24 is a top perspective view taken from the front of the adjustable groover
• FIG. 25 is a top perspective view taken from the rear of the adjustable groover
• FIG. 26 is a top perspective view taken from the rear of the adjustable groover
• This invention discloses an improved excavating machine for cutting a trench
• the invention particularly discloses an improved excavating machine for
• the numeral 30 generally designates the excavating machine of
• the excavating machine 30 includes a power unit vehicle 32 supported by
• earth cutting assembly 40 Pivotally mounted to the L-arm assembly 36 is earth cutting assembly 40.
• the earth cutting assembly 40 Pivotally mounted to the L-arm assembly 36 is earth cutting assembly 40.
• assembly 40 of the preferred embodiment comprises a rock wheel trencher assembly 42 and a
• the supporting frame assembly 44 is pivotally mounted about a
• a second hydraulic cylinder 48 Rotatably mounted to the supporting frame assembly 44 is a wheel assembly 50. Also mounted to the supporting frame assembly 44 are a conveyor assembly 52 and a shoe assembly 54.
• Figs. 1-4 schematically show the excavating machine 30 in its range of positions.
• Fig. 1 shows the excavating machine 30 with earth cutting assembly 40 raised to its highest
• FIG. 2 shows the earth cutting
• FIG. 3 shows the earth cutting assembly 40 partially
• FIG. 4 shows the
• earth cutting assembly 40 in a position at the bottom 59 of the trench 56 in the ground 58.
• Figs. 5-8 show the L-arm assembly 36 for raising and lowering the earth cutting
• the L-arm assembly 36 is located between the power unit vehicle 32 and the earth
• the L-arm assembly 36 includes a first arm 60 having a first end 62 and a
• the L-arm assembly 36 further includes a second arm
• the second arm 66 integral with and substantially transverse to the first arm 60.
• the second arm 66 has a first
• the second end 64 of the first arm 60 includes apertures 72 for
• the 70 of the second arm 66 includes an extended lift member 76 having an apertures 78 for
• the first arm 60 of the L-arm assembly 36 is longer than the second arm 66
• the L-arm assembly 36 could comprise one L-arm of
• FIGs. 5 and 6 show that the first arm 60 of each L-arni 82 is comprised of a top plate 86 and first
• first side plate 88 being substantially parallel
• each L-arm 82 is comprised of a rectangular housing 94 with the
• the L-arm assembly 36 also includes means for attachment to the hydraulic
• one of the parallel second arms 66 includes within its rectangular housing 94
• a telescoping housing 106 is operably
• assembly 36 could be incorporated with any type of excavating machine having earth cutting
• FIG. 9 shows an enlarged elevational view of the supporting frame assembly 44
• a hitch 116 having an aperture 118 therein is included for receiving pivot member 46 for pivotal attachment to the second end 70 of
• the supporting frame assembly 44 also includes a flange 122 having an aperture
• assembly 44 is adjusted up or down in accordance therewith.
• the wheel assembly 50 includes a digging wheel 128 having a rim structure 130
• a truck roller assembly 134 is rigidly connected to the
• the digging wheel 128 in a desired position.
• the digging wheel 128 is driven in a counter-clockwise
• Each plate member 132 comprises a generally flat plate having at least one ripping
• Fig. 10 is a front elevation of rim structure 130 with plate member 132 mounted
• FIG. 11 is a top perspective of an exemplary plate member 132 and Fig. 12 is a section
• FIG. 11 Exemplary plate member 132 is shown in Figs. 10-12 to
• a rectangular steel plate 133 preferably of steel, having a leading edge 137 which may
• rim structure 130 which comprises spaced apart parallel rims 129 and
• Each ripping tooth 138 comprises a holder 170 and a
• spike 172 with holder 170 receiving spike 172 and orienting it at angle a relative to outward face
• Angle a is optimally between 32° and 62°, preferably approximately 47° to 52° in the
• Spikes 172 are preferably carbide tips
• spikes 172 are contemplated such as chisels, knives, gouges, scoops and daggers. Variations
• Each plate member 132 may further be provided with one or more spades 174
• Spades 174 may comprise support legs 178, which lie along outward face 135 of plates 133, and shovels
• Shovels 176 which are disposed forward of leading edge 137 of plates 133.
• Shovels 176 preferably
• Figs. 13A and 13B illustrate a series of plate members 132 a-j carried on rim
• First plate member 132a of series of plate members 132a-j comprises a single
• first plate member 132a Also mounted to first plate member 132a are a pair of spades 174 spaced on either side of
• first plate member 132a Spaced from first plate member 132a is second plate member 132b of series of plate
• Spacing between adjacent plate members may be about six inches while each
• plate member 132 may be approximately six inches long though variations in both of these
• dimensions may be selected, preferably within the range of three inches to fifteen inches, it
• the length of the plate members 132 is not dependent on the spacing
• Flanking ripping teeth 138 are pairs of spades 174 which may be mounted to
• a centered spade 174 in the form of a backhoe tooth lies on center line
• Fourth plate member 132d of series of plate members 132a-j is spaced similarly
• plate member 132d comprises a pair of spades 174 flanked by a pair of ripping teeth 138. It can
• Spades 174 are disposed on each plate member 132 and are placed in locations spaced
• center line 180 disposed as to center line 180.
• series of plate members 132a-j may repeat or the series of plate members 132a-j may comprise
• additional plate members 132 each of which preferably includes at least one ripping tooth 138
• plate members 132 which have neither ripping teeth 138
• spades 174 may be interspersed within or between series thereof. Furthermore, the use of
• one or more spades 174 without ripping teeth 138 on a selected plate members is also
• plate members 132 in series are constructed such that the first of a
• member 132 in the series includes two ripping teeth 138 each spaced approximately three inches
• the subsequent plate member 132 includes two ripping teeth 138 each separated by approximately nine inches from the centerline 180. Thereafter, the next following plate member
• the series may include a next following plate member 132 which includes two ripping teeth 138
• the spades 174 are located on plate members 132
• centerline 180 including in some cases when three spades 174 may be utilized on a plate
• spades 174 are directed toward the direction of movement of the plate members 132 as
• the wheel assembly 50 is turned while the ripping teeth 138 are each angularly directed outward
• Spades 174 extend forward of leading edges 137
• spikes 172 are preferably located near the trailing edges 133 of plate
• the ripping teeth 138 do but do serve to scoop rock pieces and rocky soil in the trench, feeding
• shovels 176 serve to excavate non-rocky soil which may be encountered, thereby
• Deflecting member 144 is operably attached to the wheel frame assembly 44 at
• the deflecting member 144 is shown in detail in Fig. 14 and is positioned within an interior
• the deflecting member 144 is positioned at an angle with a deflecting face 150
• Deflecting member 144 directs the spoil 140 downwardly onto
• the deflecting face 150 corresponds substantially in size and shape to
• the deflecting face 150 may be arcuate in lateral cross-section (Fig. 14) and in
• the deflecting face 150 is rigidly attached to a
• housing 154 may longitudinally bias the deflecting face 150 into position within housing 154
• deflecting face 150 to retract upon contact with an obstruction (not shown) within the interior
• FIG. 16 An alternative embodiment of the cleaning member 144 is shown in FIG. 16. In this case
• a cleaning face 170 is attached directly to a mounting arm 172 which is pivotally
• a coiled spring 178 is
• the wheel speed may be accelerated
• conveyor assembly 52 is operably attached to the wheel frame assembly 44 in a suspended
• the conveyor assembly 52 further comprises a top plate 202 on which the endless
• this top plate 202 is made of an ultra ⁇
• top plate 202 is shown in the preferred embodiment as separate plates 204 and
• top plate could also be used having a longitudinal groove therein (not
• top plates 204 and 206 of the conveyor assembly 52 extend laterally beyond the
• first side assembly 198 and the second side assembly 200 respectively, in a manner so as to overlap the side assemblies 198 and 200 to prevent spoil 140 from entering the interior portion
• the endless conveyor belt 196 includes a series of
• second end roller 194 each include an annular groove 214 and 216, respectively, in alignment
• portion 218 and 220 of the first end roller and second end roller, respectively, is larger in
• a belt tension adjuster 230 allows an end member 232 of the first side assembly
• the tension adjuster 230 comprises a thumb screw 231 which, upon
• the first end roller 192 is rigidly connected along with end members 238 and 240
• the first side assembly 198 and the second side assembly 200 further includes
• a plow assembly is operably attached therein to direct the spoil 140 back out from the interior
• the shoe assembly 54 is a diamond-shaped
• stop plates 250, 252, 254 and 256 which are angled towards the first side
• the shoe assembly 54 of the present invention is shown in Figs. 21-26.
• assembly 54 includes a post member 258 for operable attachment at 260 with the supporting
• the shoe assembly further includes side plates 262 and 264 for contact with
• the side plates 262 and 264 are supported and maintained in a spaced relationship
• tubular support assembly 266 which extends downwardly from the post member 258.
• Grooving means 268 are operably attached along the bottom edge 270 of the shoe
• the grooving means 268 comprise adjustable groove means 276 for adjusting the radial dimension of the groove 272.
• the adjustable groove means 276 includes a
• mounting assembly 278 including a mounting plate 280 rigidly connected to a bottom member
• side mounting plates 284 and 286 rigidly connected to sidewalls 262 and 264,
• pivot member 290 extended rearwardly from the front mounting plate 280 is the adjustable
• groove plate 294 are included comprising a linear actuator 302 having a first end 304 and a
• the first end 304 of the linear actuator 32 is operably attached to a hand-crank
• a nose cone member 332 extends in front of the front mounting plate 280 in the
• adjustable groover assembly 276 could be incorporated with any type of

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• Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Mechanical Engineering (AREA)
• Drilling And Exploitation, And Mining Machines And Methods (AREA)
• Excavating Of Shafts Or Tunnels (AREA)
• Harvesting Machines For Root Crops (AREA)
• Soil Working Implements (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=36578589

Family Applications (1)

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• 2005
  • 2005-12-08 WO PCT/US2005/044484 patent/WO2006063166A2/en active Application Filing
  • 2005-12-08 CA CA002591111A patent/CA2591111A1/en not_active Abandoned
  • 2005-12-08 CN CNA2005800464999A patent/CN101099004A/zh active Pending
  • 2005-12-08 BR BRPI0518643-9A patent/BRPI0518643A2/pt not_active Application Discontinuation
  • 2005-12-08 EP EP05853412A patent/EP1828493A2/de not_active Withdrawn
  • 2005-12-08 US US11/297,098 patent/US20060117611A1/en not_active Abandoned

Non-Patent Citations (1)

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