JPS5922010B2 - excavation loader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an excavator loader that excavates with sufficient width to allow the excavator loader follower to move during excavation.

For example, a large excavation loader capable of loading 4000 yd3/hrO soil should have a trench in the ground that is wide enough to allow the machine to move through the trench behind the excavated part of the machine. It has been known for a long time to utilize devices for forming .

However, although various examples of such excavator loaders have been made in the past, significant improvements are still needed in the industry.

Generally, the present invention provides a novel excavator and loader that includes a vehicle body and an excavator device supported at the front of the vehicle body.

The excavator apparatus has a movable side wall that pivots outwardly to form a trench wider than a trailing portion of the excavator loader with a plurality of packets.

The support frame is attached to the front of the vehicle body and extends from each end of the support frame to support the excavator equipment.

A preferred embodiment of the invention provides a novel excavator and loader having a body with a chestnut frame supported from the ground by driven wheels.

An opening rack is pivotally supported from the chestnut rack, and the front end of the opening rack can be moved vertically up and down in relation to the chestnut rack.

The support frame structure rotatably supports the excavator equipment at the front of the vehicle body.

The support frame includes a frame portion associated with each end of the excavator equipment.

A blade and a support plate are connected to the lower parts of the raw chestnut frame and the open rack frame to stabilize the digging equipment.

The excavator apparatus includes a plurality of packets each having a wall pivotally supported between a material receiving position and a material discharging position.

Structures are provided to rotate the excavator equipment and actuate the movable wall of the packet to first receive material and subsequently discharge this material and transport it to the upper rear.

Each packet has a movable sidewall that pivots between a digging position and a dispensing position.

In the excavation position, these side walls form an excavation that is wider than the excavation itself and extends beyond the portion of the support frame associated with each side of the excavation.

Embodiments of the excavating and loading machine of the present invention will be described in detail below with reference to the accompanying drawings.

In particular, FIG. 1 shows an excavator and loader 20 according to the present invention.

The excavator and loader 20 includes a vehicle body 22 having a cockpit 23 and front wheels 24 and rear wheels 26 for movement on the ground surface.

Each wheel 24,26 has pneumatic tires 28 to enable the excavator to travel on public roads and other paved surfaces as well as to work on unpaved surfaces, such as during excavation operations.

Of course, other types of wheels, such as tracked wheels, may also be used.

As shown in FIG. 2, the front wheel 24 is supported from a raw chestnut wafer.

The rear wheels 26 are supported from the open frame 32.

Chestnut frame 30 includes a rigid elongated member extending horizontally between each front wheel 24.

A pair of link rods 36 are connected between each side of the chestnut frame 30 and the open rack 32.

Each link rod 36 extends in parallel and spaced relation to each other and is connected at each end to the open rack frame 32 by a pivot 3B for pivoting about a horizontal axis.

The open rack frame 32 has a pair of flanges 44 and 44.
A pair of variable length double acting hydraulic cylinder devices 42, 42 are connected.

The plunger rod 46 of each hydraulic cylinder device 42 is connected to a chestnut (30).

By selectively driving each cylinder device 42, the height H of the front end portion 34 of the open rack frame 32 can be raised or lowered.

Of course, the vehicle body 22 may be provided with other types of wheels and frame structures as are well known in the art.

According to the illustrated embodiment of the invention, an engine 48 is mounted on the open rack frame 32.
It is a support.

Engine 48 is preferably an internal combustion engine and serves to drive a plurality of hydraulic pumps.

Each hydraulic pump provides operating power to various components of the excavator loader 20 via appropriate controls within the cockpit 23.

For example, one of these pumps provides actuation power to a hydrostatic drive 50 coupled to a transmission 52.

A hydrostatic drive device 50 is coupled to a transmission 52 .

The transmission 52 includes a front differential 54 connected to the front wheels 24.
and a rear differential connected to the rear wheels 26 (not shown).
It has two output shafts connected to.

That is, the hydrostatic pressure drive device 50 operates the wheels 24 and 26 to propel the excavation loader 20 during excavation work and while traveling.

In this embodiment, each front wheel 24 is provided with a conventional steering mechanism to steer the vehicle body 22 as desired.

If additional control is desired for the vehicle body 22, a rear wheel steering mechanism may be provided.

The excavator device 60 constitutes the front portion of the excavator loader 20.

The excavation unit device 60 includes a frame member 62 supported from the front of the open rack frame 32.

As shown in FIG. 3, excavation portion 82 is supported from frame member 62 for rotation about a horizontally extending axis.

The excavation section 82 includes a pair of rims 84,84.

Each rim 84 extends radially outwardly along a portion of each side of the excavation 82 .

A shaft 86 fixed to the frame member 62 extends in the horizontal direction between each excavation part connection portion 63 of the frame member 62.

Each rim 84 is rotatably supported from a shaft 86 by a bearing 88.

The pair of fluid pressure motors 90, 90 are respectively connected to the excavation section 82.
and rests from each flange 91 in a fixed angular position relative to the axis 86.

A pair of ring gears 92, 92 are similarly positioned within the excavation 82 adjacent each rim 84.

Each prime mover 90 is provided with an output sprocket associated with one of two ring gears mounted within the excavation section 82, as shown in FIGS. 2 and 4, to rotate the excavation section 82 in the direction of arrow 94. That's how it is.

Fluid lines communicating with each prime mover 90 extend through frame member 62.

Of course, the excavator 82 may also be driven by an electric motor that receives power from a generator driven by the engine 48.

As shown in FIG. 4, each excavation portion 82 has a plurality of excavation buckets NO2 circumferentially spaced apart from each other and extending between each rim 840! It is growing.

Each excavation packet 102 includes a cutting edge 104 having a plurality of teeth 106 and a fixed wall 108 extending generally radially inwardly from the cutting edge 104.

Each excavation packet 102 further includes a rear wall 110 pivotally supported between a material receiving position and a material discharging position.

The function of the rear wall 110 is illustrated in FIG.

In FIG. 4, the rear wall 110 is located between the digging position when each packet 102 is in the lower forward position of its rotational movement and the material ejection position when each packet 102 is in the upper rearward position of its rotational movement. There are instructions to operate.

As shown in FIGS. 3 and 4, the driving device 120 of the excavation packet 102 of each excavation section 82 is completely connected to the excavation packet 102 of each excavation section 82.
It is provided with a plurality of push rods 122 located within the periphery of.

Each push rod 122 is connected between one of the rear walls 110 and a chain 124.

The chain 124 is generally constrained and the roller 1
It extends around 26.

Roller 126 is supported by shaft 86 and fixed against angular movement relative to shaft 86 by bracket 130.

A sprocket is provided on the outer periphery of the roller 126 so as to be associated with the chain 124.

Excavating section 82 is rotated about axis 86 under the action of prime mover 900, and each push rod 122 becomes associated with a roller 126 where it pushes a respective rear wall 110 outwardly into a material release position.

Each excavation packet is then rotated to the lower forward position of the circular path, and the chain 124 is actuated via the push rod 122 to positively return the wall 110 to the material receiving position.

This positive action of the rear wall 110 in both directions is far superior to previously used structures.

In such conventional constructions, each rear wall section returns to its material-receiving position under the action of gravity and/or crowding of excavated material into the packet.

Also, U.S. Patent Application No. 435,296, 1975-7
Of course, other positive acting drives may be used, such as those described in U.S. Pat.

In particular, according to the invention each packet is provided with a movable side wall 132.

Each sidewall 132 is shown in FIGS. 2, 3, 5, and 6.

Each sidewall 132 is pivotally connected to the rim 84 by a bushing 134.

Each sidewall 132 has a generally triangular shape.

The bushings 134 rotate each side wall 132 in the front-back direction of an arrow 136 as shown in FIG.

Each side wall 132 includes a ring member 14 located on each side of the excavation 82.
0 through an elastic bushing 138.

Each top member 140 is positioned between the outside of one rim 84 and each portion 63 of frame member 62, as shown in FIG.

A pair of guide rollers 142, 142 are attached to the inner surface of each portion 63 of frame member 62 and are associated with ring member 140, as seen in FIGS.

As seen in FIG. 5, the distance between opposing bushings 138 of ring member 140 is less than the distance between the connections to opposing packet walls when in the closed position.

This configuration ensures that, during rotation of excavator 82, some of the side walls 135 are always in an open or excavating position as shown in the right-hand portion of FIG.

Each roller 142 contacts an outwardly extending surface of ring member 140 and moves each side wall 132 into a closed position to create a clearance below flange member portion 62, as shown in FIG.

Additionally, each sidewall 132 includes a pair of digging teeth 144.

Each digging tooth 144 extends from the outer periphery of the side wall 132 and extends through the digging portion 8 .
Excavating the material during operation 2.

Each side wall 132 and ring member 140 has an individual packet 1
Each sidewall 132 is arranged to pivot to its maximum side-to-side cutting width when the 02 is in the material-receiving position.

In this way, the excavation 82 can form an excavation wider than its entire width.

Furthermore, the ring member 140 is directly connected to each side wall 13 and
It becomes an active drive device that moves 2.

The outward pivoting movement of each sidewall 132 causes excavation 82 to form an excavation of width A shown in FIG.

The maximum width B of the trailing portion of the vehicle body is the frame member 620 portion 63
Measured by the outer surface of the

This drilling wheel device has three advantages.

First, the present excavator wheel system increases the width of the excavation formed by the present excavator and loader so that the excavator and loader can operate within the trench formed by the excavator and loader.

In this case, the overall complexity of the excavator loader of the present invention is reduced by reducing the amount of excavator wheel assembly movement required to position the excavator assembly for digging and travel.

Second, the excavator wheel uses a frame-shaped support frame associated with the excavator at each end to provide a more stable apparatus for supporting the excavator, substantially reducing the overall weight and complexity of the excavator. will decrease.

Third, the present digging wheel system allows the use of positive packet sidewall drives, which are far superior to other drives for sidewalls or packets.

A scoop plate device 150 is positioned at the lower rear of the excavation shaft 82.

The scoop plate device 150 extends across the entire width of the excavation shaft 82 and is provided to scoop up bulk material and push the material in the forward direction as the excavation loader 20 moves.

The scoop plate device 150 includes a plate member 152 that is curved to match the travel path of the cutting edge 104.

The blade 153 is positioned adjacent to the lower edge of the plate member 152.

The plate member 152 also fixes and supports the frame member 62.

The support plate 154 supports its front edge pivotably from the rear of the plate member 152.

A selectively actuable double acting hydraulic cylinder 156 is pivotally mounted between the rear edge of the support plate 154 and the plate member 1520.

That is, by operating a control device provided in the cockpit 23, the effective length of the cylinder 156 can be selectively varied and the support plate 154 can be appropriately positioned in relation to the frame member 62 as desired.

By adjusting the support plate 154, the vertical pressure can be determined and the momentum can be reduced to stabilize the present excavating and loading machine.

FIG. 7 shows a modification of the scoop plate device.

A scoop plate device 160 according to this variation is similarly provided to extend across the entire width of the excavation shaft 82 and to scoop up bulk material and push it forward as the excavation loader 20 moves.

The scoop plate device 160 includes a plate member 162 that is curved to match the path of movement of the cutting edge 104.

The blade 163 is positioned adjacent to the lower edge of the plate member 162.

Plate member 162 is slidably supported from frame member 62 and moves in the direction of arrow 164 and vice versa.

A pair of link arms 165, 165 are pivotally connected between the frame member 62 and the plate member 1620.

A double-acting hydraulic cylinder 166 is pivotally connected between the six arms 165 and the frame member 620.

That is, by operating a control device provided in the cockpit 23, the effective length of the cylinder 166 can be selectively changed and the plate member 162 and the blade 163 can be appropriately positioned as desired.

The support plate 167 has its front edge pivotally attached to the rear of the plate member 162.

A selectively actuable double-acting hydraulic cylinder 168 is pivotally mounted between the rear edge of the support plate 167 and the plate member 162.

That is, by operating a control device provided in the cockpit 23, the effective length of the hydraulic cylinder 168 can be selectively varied and the support plate 167 can be appropriately positioned in relation to the rim member 62 as desired.

By adjusting the support plate 167, the vertical pressure can be determined and the momentum can be reduced to stabilize the excavator and loader.

As shown in FIGS. 1 and 2, the excavating and loading machine 20 further includes a loading device 170.

The loading device 170 includes a main conveyor 172 having a lower material receiving portion and an upper material discharging portion and having an endless belt 174 mounted for movement about a path extending diagonally upward relative to the open rack frame 32 of the vehicle body 22. It is equipped with

In particular, the path of the belt 174 is determined by a plurality of rollers (not shown) supported on the frame of the conveyor 172.

The frame of the conveyor 172 is supported from the open frame 32 of the car body 22 and includes a support member supporting the upper portion for pivoting about a horizontal axis under the action of a hydraulic cylinder (not shown). .

In this way, the vertical height of the conveyor material delivery portion can be controlled and bent.

A belt 174 of the main conveyor 172 extends around drums attached to each end of the conveyor 172.

These drums are rotated by a star hydraulic prime mover (not shown).

This causes the belt 174 to move around the path defined by each roller, moving the material from the material receiving section to the material ejection or delivery section.

A chute 180 is supported at the bottom rear of the excavation shaft 82 from member 62 and receives ejected material from packet 102.

Chute 180 is configured to direct material to a material receiving portion of main conveyor 172.

Chute 180 also includes a plate member 182 that cooperates with and overlaps plate member 152.

The chute 180 transfers the material excavated by the excavation shaft 82 to the main conveyor 172 from the material receiving section to the material sending section by the conveyor 172.

Additionally, a laterally extending conveyor 184 is provided to assist in moving material to the main conveyor 172.

As shown in FIG. 1, this embodiment further includes an auxiliary conveyor device 186.

The auxiliary conveyor device 186 includes a rack attached to the rear end of the open rack 32 of the vehicle body 22.

A carousel 188 supports the frame of the auxiliary conveyor system 186 for pivoting about a vertical axis under the action of a hydraulic prime mover (not shown).

An inner conveyor 190 supported on a carousel 188 receives material discharged from the material delivery portion of the main conveyor 172.

The conveyor 190 includes a frame supported by a rotating table 188 and an endless belt that moves around a path defined by a plurality of rollers.

The belt is driven by a hydraulic prime mover.

A hydraulic prime mover 192 is provided to control the angular relationship of the auxiliary conveyor system 186 and the carousel 188.

The auxiliary conveyor device 186 has upper and lower rings 1 parallel to each other.
96] includes an outer conveyor 194 having a frame supported from the frame of the conveyor 190.

The endless belt is supported by an outer conveyor frame and is adapted to move about a path defined by drums at each end of the endless belt.

A hydraulic cylinder 198 is pivotally mounted between the frames of each of the inner and outer conveyors to operate the outer conveyor 194 in relation to the inner conveyor 190.

Each conveyor 190, 194 is driven by an electric motor and can be mechanically coupled to and driven by the motion of the digging wheel arrangement.

As is clear from the above, the invention was made in 1974.
No. 435,296, dated January 21, 2006, i.e.
An additional improvement in the excavator loader is provided as described in U.S. Pat.

That is, according to the present invention, there is provided an excavating and loading machine that is equipped with a car body that supports an excavator wheel device at the front, excavates material, transfers the material to a main conveyor, and conveys the material to the rear of the car body by the main conveyor. It will be done.

A support frame structure is provided to support the digging wheel from the front of the vehicle body.

The support frame includes a portion associated with and supporting the digging wheel from each end.

The digging wheel includes a plurality of packets with movable sidewalls that pivot outwardly to form a cut that is wider than the cut associated portion of the support frame structure.

In this way, the cutting wheel forms an excavation wider than the trailing part of the vehicle body and can support the vehicle body within the excavation and be moved through this excavation during its formation.

Although the present invention has been described above in detail with reference to its embodiments, it goes without saying that the present invention can be modified in various ways without departing from its spirit.

[Brief explanation of drawings]

FIG. 1 is a side view of one implementation of the excavation and loading machine of the present invention, FIG. 2 is an enlarged side view of the front part of the excavation and loading machine of FIG. 1, and FIG. 3 is a plan view of FIG. 4 is a sectional view taken along the line 4--4 in FIG. 3, and FIG. 5 is an enlarged plan view of a portion of the excavation wheel shown in FIG. 3. 6 is an end view taken along line 6--6 in FIG. 1 in the direction of the arrow, and FIG. 7 is a side view of a modification of FIG. 3. 20...excavator, 22...car body, 24
．． 26...Wheel (support body), 60...
Excavation wheel device, 62... Frame member (support member),
63... related parts, 90... prime mover,
92...Ring gear, 102...Drilling packet, 104...Cutting edge, 108...
Fixed wall, 110...Movable wall, 120...
- Packet drive device, 132...Movable side wall, 1
56...Fluid pressure cylinder, 172...
Main conveyor, 186...Auxiliary conveyor device.

Claims (1)

[Claims] 1 (a) Vehicle body 22, (b) Supports 24 and 26 that movably support this vehicle body on the ground surface, and (c) Fixed rear wall 1
08 and a movable front wall 11 mounted for pivoting from a material receiving position to a material extrusion position.
0 and a movable side wall 132 pivotally mounted between a first position outwardly of the widest portion of the vehicle body and a second position flush with the side of the excavator equipment. an excavation unit device 60 forming an excavation unit and including a plurality of excavation packets 102; (e) a drive device 90, 92 for rotating the excavator so that each excavation packet thereof follows a circular path; and (f) a support member 62 located at the front; and positively positioning the movable front and side walls of each of said excavation packets in response to rotation thereof into each respective said material extrusion position and first position when said packet is in an aft portion of its path. an actuator 120, 140 for positively locating each said material extrusion position and a second position when in the forward portion.