JPS60507B2 - Scraping loading machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an excavation loader that makes it possible to make an excavation of sufficient width for a trailing part of the excavation loader to move into the excavation.

For example, for a large excavation loader that can traverse a 4.00 d3/hr loader, the width is sufficient to allow the machine to move through the trench behind the excavation part of the machine. It has been known for a long time to utilize a device for forming a trench with a groove.

However, although various examples of such excavation and entry machines have been made from scratch, there is a need for significant further improvements in the industry. Generally, the present invention includes a vehicle body, an excavator wheel supported on the front portion of the vehicle body, and an excavator portion having a width sufficient to swing the excavator wheel device from side to side and receive a trailing portion of the vehicle body. A novel excavator and loader is obtained with a forming rocker.

A conveyor is provided at the rear of the vehicle to transfer material from the drilling equipment to a delivery location. In accordance with a preferred embodiment of the present invention, a novel excavator and loader is described having a body having a main frame supported by a pair of drive wheels.

A second pair of wheels is attached to the secondary frame. This secondary frame supports the engine. The main frame and the sub-frame are interconnected for relative vertical movement so that the sub-frame can be moved up and down relative to the main frame. The excavation equipment is rotatably supported on the sub-frame at the front of the car body. A conveyor is positioned behind the excavator to receive material from the excavator and transport the material rearward and upwardly. The excavation wheel device is attached to a frame member that is pivotally connected to the subframe so as to pivot about a vertically extending marking line. There is 1 between the frame material and the sub-frame.
A pair of double-acting hydraulic cylinders are connected. Each shilling, when driven, is capable of laterally swinging a digging wheel arrangement across the front of the vehicle body. The motion of the drilling wheel device is
It has a circular arc wider than the widest part of the trailing part of the car body to enable the car body to move in the trench formed by the excavating wheel system. The frame member has an arcuate surface that contacts the wall of the trench to stabilize the excavation equipment. The blade and support plate are connected to the lower portion of the frame member to stabilize the drilling equipment. A variable length double acting hydraulic cylinder is provided to adjust the position of these support plates and frame members. The drilling equipment includes a plurality of drilling buckets each having a wall that is pivotably supported between a material receiving position and a material discharging position. A crossbody is provided to rotate the excavation wheel system and actuate the movable wall of the bucket to first receive material and subsequently lift the material onto the conveyor. An auxiliary conveyor having an inner portion and an outer portion is provided at the rear of the car body for transferring material from the main conveyor to the rear of the receiving car body. Embodiments of the excavation bonding 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 excavating plunger 20 includes a vehicle body 22 having a cockpit 23, a front wheel 24 for moving on the ground surface S, and rear wheels 26. Each wheel 24, 26 is a pneumatic tire 28 so that the excavator 20 runs on public roads and other paved surfaces, and also works on non-paved surfaces such as during excavation work. As shown in FIG.
Supported by

The rear wheels 26 are supported by a sub-frame 32. The main frame 30' is a rigid, elongated member that extends horizontally between each front wheel frame 24. A link member 36 is connected between each side of the main frame 30 and the sub frame 32. Each link member 3
6 are spaced parallel to each other and connected at their ends by pivots 38 for pivotal movement about a horizontal axis. The other end of each link member 36 is connected to the main frame 30
It is pivoted by a single pivot 40 so as to pivot around a horizontal key line. A pair of variable length double-acting hydraulic cylinder devices 42, 42 are connected to the sub-frame 32 by a pair of flanges 44, 44. The lot 46 of each hydraulic cylinder device 42 is connected to the main frame 30. By selectively driving each cylinder device 42, the height of the front end portion 34 of the sub-frame 32 can be varied.
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 supported on the secondary frame 32.

Engine 48 is preferably an internal combustion engine and drives 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 force to a hydrostatic drive connected to transmission 52.
The transmission 52 includes a front differential 54 connected to the front wheels 24.
and a rear differential (not shown) connected to the rear wheels 26. 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 drive unit 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 60 constitutes the front portion of the excavator and loader 20. Drilling equipment 60
A support frame body, that is, a frame member 62 is provided which is supported from the front part of the sub-frame frame 32. The frame member 62 is connected to the sub frame 32 by a shaft 64 extending in the vertical direction so as to swing around the vertical axis. Movement of frame member 62 is from side to side in the direction of arrow 66 as shown in FIG. The shaft 64 is connected to the frame 62 by an upper frame portion 68 and a lower frame portion 70. The upper frame portion 68 is attached between a pair of flanges 72, 72 on the upper portion of the sub-frame 32, while the lower frame portion 68 is attached between the flanges 74 on the lower portion of the sub-frame 32. . A pair of variable length hydraulic cylinders 80, 80 are connected between the sub-frame 32 and the frame member 62.

By selectively actuating each cylinder 80, frame member 62 can be pivoted about bag 64 between positions illustrated in phantom. The advantages of the swinging excavation wheel device 60 are twofold.

First, the width of the excavation section W formed by the excavation equipment 6 and the excavation lighting machine 20 is increased. Second, from the drilling equipment 60',
The excavating and loading machine 20 can be operated within the trench to be formed. In this case, the complexity of the overall excavator loader Z according to the invention is reduced by substantially reducing the amount of movement of the excavator device 60 required to position it for excavation and travel. The excavation device 6 is further provided with an excavation wheel 82 supported from a frame member 62 so as to rotate around a horizontally extending scale line.

Digging wheel 82 includes a pair of rims 8Z4, 84 extending radially outwardly along each side thereof. The shaft 86 is fixed to the frame member 62 and extends in the horizontal direction. Each rim 84
is rotatably supported from a shaft 86 by a bearing 88. 1
A pair of hydraulic prime movers 90 , 90 are each located within the cutting wheel 82 and supported from respective flanges 91 in a fixed angular position relative to the shaft 86 .

A pair of internal ring gears 92, 92 are similarly located within the cutting wheel 82 adjacent each rim 84.

As shown in FIGS. 2 and 3, each prime mover 901 is provided with an output sprocket connected to one of two ring gears 92, 92 attached to the excavation wheel 82, and drives the excavation wheel 82. It is designed to rotate in the direction of. prime mover 9
A fluid conduit leading to this end is located within the frame member 62. As shown in FIG. 4, each excavator 82 includes a plurality of excavator buckets 102 extending circumferentially about it and equally spaced between each rim 84. As shown in FIG.

Each digging bucket 102 includes a cutting edge 104 having a plurality of teeth 106 and a fixed wall 108 extending generally radially inwardly from the cutting green 104. Each excavation bucket 102
further includes a backrest 110 pivotally supported between a material receiving position and a material discharging position. rear wall 11
The effect of 0 is illustrated in FIG. In Figure 4, the rear wall 11
0 is also shown operating between a digging position when each bucket 102 is in a lower forward position of its rotational movement and a material ejection position when each bucket 102 is in an upper rearward position of its rotational movement. be. As shown in FIGS. 3 and 4, the drive unit 12 of the excavation bucket 102 of each excavation wheel 82
0 is a plurality of push rods 1 located within the periphery of each excavation wheel 82.
It is equipped with 22. Each push rod 122 is connected between one of the rear walls 110 and a chain 124. chain 12
4 is generally constrained and extends around roller 126. Roller 126 is supported by shaft 86 and fixed against angular movement relative to ratchet 86 by bracket 130. Roller 126 is supported on sleeve 96 by bracket 129. Roller 126 is toothed on its outer periphery and engages chain 124 in rotating excavator 82 in the direction of arrow 99 under the action of prime mover 90. Each push bar 122 becomes associated with a roller 126 and pushes the respective connected rear wall 110 outwardly into a material release position. Each excavation bucket is then rotated to the lower forward position of the circular path, which causes the chain 124 to connect to the push rod 122.
, which then actively returns wall 110 to the material-receiving position. This positive action of the backrest 110 in both directions is much greater than previously used structures. It is excellent.
In such a follow-up construction, each rear portion returns to its material-receiving position under the action of gravity and/or the entry of excavated material into the bucket. Of course, other positives may also be used, such as those described in U.S. Pat. No. 3,890,571. drilling wheel 8
A scooping plate device 132 is located at the rear of the lower part of 2.

A scoop plate device 132 extends across the entire width of the excavator 82 and is provided to scoop up bulk material and push the material forward as the excavator 20 advances. The scoop plate device 132 includes a slope member 134 that is curved at each edge 104 to match the travel path. Slope member 13
A blade 136 is positioned adjacent to the lower green part of the tree. The slope member 134 is fixedly supported from the frame member 62. The front green of the support plate 137 is pivotally supported from the rear of the slope member 134. Back green of support plate 137 and slope member 134
A double-acting hydraulic cylinder system 1 that can be operated selectively between
38 is pivoted and there is 0. That is, by operating a control device provided in the cockpit 23, the fluid pressure cylinder device 13 is activated.
The effective length of 8 can be selectively varied to suitably position support plate 137 relative to frame member 62 as desired.

The support plate 137 can be adjusted to set its vertical pressure to reduce staleness and stabilize the excavator loader. Where appropriate, the rake plate device may be fixed to the excavation frame. As shown in FIGS. 1 and 2, the excavating and pouring machine 20' is further provided with a pouring device 140.

The thinning device 14 has a lower material receiving portion 146 and an upper material delivery portion 148 and is connected to the sub frame 32 of the vehicle body 22.
a main conveyor 1 having an endless belt 144 mounted for movement around a path extending diagonally upward relative to the main conveyor 1;
It is equipped with 42. In particular, the path of belt 144 is formed by a plurality of rollers (not shown) supported by conveyor frame 150'. The conveyor frame 150 is the car body 2
It is supported by two secondary frames 32 and has a support member supporting an upper portion 148 for pivoting about a horizontal axis under the action of a hydraulic cylinder (not shown).
In this case, the vertical height can be controlled and the feed delivery portion 148 of the conveyor 42 can be bent. Main conveyor 42
The belt 144 extends around a relatively small drum 154 attached to the upper end of the frame 150 and around a relatively large drum 156 attached to the secondary frame 32.

Each drum 154, 156 is rotated by a star hydraulic motor (not shown) located within each drum 154, 156. In this manner, the belt 144 moves around the path formed by each roller and transfers material to the material receiving portion 1.
46 to a material discharge or delivery section 148 . The chute 16 is supported from the wall 62 at the rear and lower part of the excavation mechanism 82 and is adapted to receive the material discharged from the bucket 102.

Chute 160 includes a plate member 162 shaped to direct material to material receiving portion 146 of main conveyor 142 . The slope member (162) cooperates with the plate member 134 and overlaps the plate village 134. Chute 1601 and excavation wheel 8
2, the excavated material is delivered to the main conveyor 142 and thus transferred from the material receiving section 146 to the material discharging section 1.
Transfer to 48. In particular, the embodiment shown in FIG. 1 further includes an auxiliary conveyor system 170.

The auxiliary conveyor device 170 includes a frame 172 fixed to the rear end of the sub-frame 32 of the vehicle body 22. Frame 1
A rotary table 174 is supported on the rotary table 72 and pivoted around a vertical axis under the action of a hydraulic motor (not shown). An inner conveyor 176 is supported on a carousel 174 and is adapted to receive material discharged from the feed delivery portion 148 of the main conveyor 142.

The conveyor 176 is connected to a frame 178 supported on a rotating table 174.
and an endless belt 180 attached to move around a path formed by a plurality of rollers. The belt 180 is driven by a star-shaped hydraulic motor 181. A fluid pressure cylinder 182 is provided to control the angular relationship of the frame 178 to the rotating table 174. Auxiliary conveyor system 17 also includes an outer conveyor 184 having a frame 186 supported from a frame 178 by mutually parallel upper and lower links 188.

The frame 186 supports an endless belt 190 so as to move around a path formed by a pair of drums 192,192. Conveyor 184 is driven by a small hydraulic prime mover (not shown) mounted within each drum 192. The fluid pressure cylinder 200 is connected to each frame 178,1
86 for operating the outer conveyor 184 relative to the inner auxiliary conveyor 176. In this way, the outer conveyor 84 is operated and the inner conveyor 17 is
The material is selectively received from 6. As will be apparent to those skilled in the art, frame member 62 has a raised surface 2 on each side thereof.
06 is provided.

As shown in FIG. 3, each protrusion surface 206 is positioned so as to contact the walls T, T of the trench formed by the digging wheel 82. The ejection surface 206 acts as a reaction point or fulcrum for lateral loads applied to the digging wheel 82. In operation, each cylinder 80 is selectively actuated to swing the excavator 82 approximately 1 r on each side of the centerline.

This oscillation is caused by the use of four-way cam operated valves that reverse at each limit of travel to control the supply of working fluid to each cylinder 80. In normal operation, the excavator loader does not advance at high excavation speeds. Therefore, there is no need to increase the number of reciprocating movements of the excavation theory 82. As is clear from the above description, according to the present invention, material is excavated with a car body supporting an excavated log layer at the front, and the material is transferred to the main conveyor, and the main conveyor conveys the material to the rear of the car body. Thus, an excavation and loading machine is obtained.

The drilling rig itself is narrower than the following body parts. The excavation wheel is attached to a frame material that swings from side to side in the lateral direction of the vehicle body movement direction, forming a trench 1 wider than the vehicle body itself. In this case, the vehicle body moves within the trench and the frame members become the outer support for the excavation system. This particular construction provides the advantage of being able to externally link the drilling equipment and providing it with greater stability and less complexity for operating the bucket and supporting the drilling wheel itself.

Furthermore, this structure allows the excavation and loading machine to increase the width of the excavation formed by the excavation and loading machine and to operate within the trench or excavation that is being formed. This substantially reduces the amount of drilling equipment travel required to position the drilling equipment for drilling and travel. As will be apparent to those skilled in the art, although the vehicle body has been illustrated as having wheels with tires, track wheels may of course also be utilized.

Additionally, the excavator and loader is shown as utilizing an internal combustion engine with a fluid pump and a fluid prime mover to operate its various components. Of course, it would not depart from the scope of the invention to use an internal combustion engine to operate various parts of the excavator by means of a generator and an electric motor. Further, by attaching a suitable device to the front of the vehicle body 22, it is possible to adjust the vertical and horizontal swings of the excavation equipment.

This system moves the conveyor 142, chute 160, and scoop plate assembly 132 as a unit with the digging wheel assembly 60 to minimize spacing between these components and reduce strain. Although the present invention has been described above in detail with reference to its embodiments, it is of course possible to make various changes and modifications to the present invention without departing from its spirit.

[Brief explanation of drawings]

Fig. 1 is a side view of one embodiment of the excavating and fin loading machine of the present invention, Fig. 2 is an enlarged side view of the front part of the excavating and loading machine of Fig. 1, and Fig. 3 is a plan view of Fig. 2; FIG. 4 is an enlarged side view, partially in longitudinal section, of the drive device for driving the rear wall of the excavation bucket of the excavation loader of FIG. 1. FIG. 20... Excavation bonding machine, 22... Car body, 24
, 26...Wheels, 30...Main frame, 32...
...Liu Ziwaku, 42...Fluid pressure cylinder device (
relative position change device), 62... frame member, 80...
...Fluid pressure cylinder device (oscillating device), 82...
...Drilling wheel, 90...Fluid Sho engine, 92.
... Ring gear, 102 ... Excavation bucket, 10
4... Cutting green, 108... Fixed wall, 1
DESCRIPTION OF SYMBOLS 10... Movable wall, 120... Bucket drive device, 122... Push rod, 124... Chain, 126... Roller, 142... Main conveyor, 170.
...Auxiliary conveyor device. F'G. 'F'G. 4 F'G. 2 F'G. 3

Claims (1)

[Claims] 1 (a) a vehicle body 22; (b) a support 24 that supports the vehicle body on the ground surface and allows the vehicle body to move; (c) an excavation wheel 82; (e) a support frame structure 62 rotatably supported on the front part of the vehicle body and rotatably supported around a vertical axis; and a rocking device 80 that swings in the lateral direction to form an excavation section W wider than the widest part of the vehicle body. 62, the excavation wheel is attached between both ends of this C-shaped line segment, the frame member is attached to the front part of the vehicle body at the center, and the C-shaped line is connected from both ends of the line segment to the center. The supporting frame structure is provided with a portion 206 in which the vertical width of the C-shape gradually increases toward the end, and thus the support frame structure swings between the both side walls T, T of the excavation part W while maintaining contact with the both side walls T, T. The excavating and loading machine is characterized in that it is capable of: