JPS61151322A - Excavating and discharging device - Google Patents

Abstract

PURPOSE:To perform a safe and efficient work, by providing an excavating part, a scrape up part which scrapes up excavarted soil, and a sucking and discharging part which sucks and collects excavated soil so scraped up for discharge. CONSTITUTION:With a hydraulic motor 35 driven, soil 35 is excavated through rotation of an auger 42, and soil 55 is agitated through injection of high pressure water through an injection nozzle 44A. A part of soil 55 is introduced to an opening part 58 of a sucking and collecting part 56, and is sucked and discharged to a ground surface part 45 with the aid of a vacuum device. When the soil 55 is accumulated, the auger 42 is driven from a projection position shown by a two-dot chain line M to a nonprojection position shown by a solid line, and a shovel 49 is rotated in the direction of an arrow mark H in a state shown by a 2-point chain line. Further, after the soil 55 is raked up to the forward end of a second arm 15, the soil is sucked for collection through the opening part 58 with the aid of the vacuum device, and is discharged to the ground surface 45.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an excavating and discharging device for excavating and discharging earth and sand and other excavated materials in construction foundation work, civil engineering work, etc.

[Prior Art] Conventionally, when digging a hole on the ground surface in construction foundation work, civil engineering work, etc., earth and sand at a position corresponding to the hole are removed from the ground surface using an excavating device such as a power shovel. This is being done by excavating and discharging. A power excavator is a shovel attached to the tip of the boom.
The excavated earth and sand will be discharged to the surface. For this reason, when discharging earth and sand excavated by the shovel from inside the hole to the ground surface, it is necessary to consider the working rotation radius of the boom relative to the power shovel body.

Therefore, the depth of the hole that can be excavated is limited to about 51 mm from the ground surface, and the diameter of the hole inevitably has to be large.

For this reason, the depth from the ground has traditionally been large;
When digging a hole with a small diameter, a sheet pile is driven around the area corresponding to the hole, a person enters inside the sheet pile, excavates the earth and sand, and then discharges the earth and sand using a conveyor, etc. .

[Problems to be Solved by the Invention] However, carrying out excavation work while a person is inside the sheet pile has many dangers and is considered to be inefficient.

An object of the present invention is to safely and efficiently excavate and discharge materials such as earth and sand, regardless of the width or depth of the excavation area.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an excavation section for excavating an excavated object, a raking section for raking the excavated object, and a raking section for raking the excavated object. The excavation and discharge device includes a suction and discharge section that suctions and collects the excavated material and discharges it.

[Function] According to the present invention, the excavating section and the raking section are operated inside the excavation area, the excavated object in the excavated area is excavated, and the excavated object is excavated by the suction discharge section while being raked. It is possible to discharge it outside the area. This makes it possible to safely and efficiently excavate and discharge materials such as earth and sand, regardless of the width or depth of the excavation area.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an excavating and discharging device according to an embodiment of the present invention, FIG. 2 is a side view showing a vehicle equipped with the excavating and discharging device shown in FIG. 1, and FIGS. 3 and 4 are Regarding the state in which a hole for a building foundation is excavated by the excavation and discharge device shown in Fig. 1, Fig. 3 is a sectional view showing the operating state of the excavation part, and Fig. 4 is a sectional view showing the operating state of the scraping part. It is.

The excavating and discharging device 10 is provided in a vehicle 11, as shown in FIG. 2, and is attached to the tip of a boom 12 of the vehicle 11.

The boom 12 supported by the vehicle 11 is rotatable in the direction of arrow A around the support part 13.
The entire excavating and discharging device 10 attached to the tip of 2 is also indicated by arrow A.
It is possible to rotate in the direction.

The excavation and discharge device 10 includes a first arm 14 and a second arm 15, each having a cylindrical shape.
The second arm 15 is supported by a rotation support part 16 at the tip of the boom 12, and the second arm 15 has a connecting part 1 at the tip of the first arm 14.
They are connected via 7. The first arm 14 is rotatable in the direction of arrow B with respect to a rotation support portion 16 at the tip of the boom 12, and the rotation is caused by the rotational force of a rotary drive wheel (not shown) built in the vehicle 11. A wire 19 is suspended around a pulley portion 18 disposed between the rotary drive wheel and the rotary support portion 16.
This is possible by transmitting information. Further, the second arm 15 is rotatable in the direction of arrow C relative to the distal end of the first arm 14. That is, the connecting portion 17 connecting the first arm 14 and the second arm 15 is connected to the connecting bracket 2 attached to the base end of the second arm 15, as shown in FIG.
A connecting hole 21 drilled in 0 is inserted into and supported by a support shaft 22 attached to the tip of the first arm 14, so that the second arm 15 rotates around the support shaft 22 in the direction of the arrow. It becomes possible to rotate in the C direction. The rotation of the second arm 15 in the direction of arrow C is as follows:
This is made possible by driving the cylinder 23 attached to the first arm 14. That is, the cylinder 23 is connected to the first arm 1
The piston rod 25 of the cylinder 23 is supported by the cylinder bracket 24 of No. 4 so as to be swingable in the direction of the arrow.
is connected to the connection bracket 26 of the second arm 15 . As a result, the cylinder 23 is driven, and the piston rod 25 is driven in the direction of arrow E, so that the second
The arm 15 becomes rotatable in the direction of arrow C relative to the first arm 14.

An excavation portion 27 is provided inside the second arm 15 having a cylindrical shape as a whole.
will be placed. The excavation part 27 has a cylindrical second arm 1.
The housing 28 includes a cylinder 30 which is attached to the base end of the second arm 15 via a mounting bracket 29.
By driving the second arm 15, the second arm 15 can be moved up and down in the direction of arrow F. That is, this cylinder 30 is hydraulically driven, and the piston rod 32 can be driven in the direction of arrow F by the energy of the hydraulic pressure delivered through the oil feed pipe 31, and the tip of the piston rod 32 is connected to the housing. 2
The housing 28 can be driven in the direction of arrow F by being connected to the connection bracket 33 at the base end of the housing 28 . A hydraulic motor 35 is disposed inside the housing 28 on the proximal end side and is attached to a motor support portion 34 . Hydraulic motor 3
An oil feed pipe 36 is connected to the oil feed pipe 36, and the drive shaft 37 can be rotated in forward and reverse directions using hydraulic energy delivered through the oil feed pipe 36. The drive shaft 37 of the hydraulic motor 35 is connected to a reducer 4138 disposed within the housing 28, and the reducer 93B is provided with an output shaft 39 on the front end side within the housing 28. That is, the deceleration 41138 is the drive shaft 3
7 can be transmitted to the output shaft 39 in a decelerated state. The output shaft 39 has its peripheral portion supported by a shaft support portion 40 disposed inside the tip of the housing 28 , and a bearing 41 is interposed between the shaft support portion 40 and the output shaft 39 .

An auger 42 is connected to the output shaft 39.

The auger 42 is driven by the housing 2 by the cylinder 30.
By driving in the direction of arrow F of 8, the tip part is moved to the second arm 15.
It can freely protrude from the tip.

The tip of the auger 42 is provided with pits 43 and 44 for breaking rocks, earth, etc.
An injection nozzle 44A is provided at the tip of an inverted cone-shaped pit 44 provided at the center of the tip, making it possible to inject high-pressure water or high-pressure air. The auger 42 is rotated by the hydraulic motor 35 in the state of protrusion from the tip of the second arm 15 shown in FIG.
It becomes possible to excavate objects such as earth and sand, rocks, etc. at the tip of the excavator. That is, as shown in FIG.
6, the auger 42 is rotated in the direction of arrow G with the tip of the auger 42 protruding from the tip of the second arm 15. As a result, it becomes possible to use the tip of the auger 42 to excavate the earth and sand in the excavation area for forming the hole 46.

A raking part 47 is provided at the tip of the second arm 15 for raking up excavated objects such as excavated earth, sand, and rocks. The raking part 47 is formed by supporting a support part 50 of a shimbel 49 on a shovel support bracket 48 attached to the tip of the second arm 15 . By driving the provided cylinder 51, it is possible to rotate in the direction of arrow H. That is, the support portion 50 of the shovel 49 is rotatably supported by the shovel support bracket 48 around the connecting portion 52 .
The shovel 49 can be rotated in the direction of arrow H around the center. The cylinder 51 is supported swingably in the direction of arrow J with respect to a cylinder bracket 53 attached to the outer periphery of the second arm 15, and the piston rod 54 of the cylinder 51 is connected to the support part 50 of the shovel 49. Concatenated. As a result, the cylinder 51 is driven and the piston rod 54 is driven in the direction indicated by the arrow, so that the shibo bell 49 can be rotated in the direction indicated by the arrow H around the connecting portion 52 of the support portion 50. The tip of the shovel 49 is made of a material such as a hard metal that can break up objects to be excavated such as rocks and earth.

The grain bell 49 is rotated in the direction of the arrow H when the auger 42 does not protrude from the tip of the second arm 15 as shown in FIG. This rotation enables scraping. In other words, the earth and sand 55 excavated in the state shown in FIG.
is piled up inside the hole 46, and this earth and sand 5
5 can be brought to the tip of the second arm 15 by rotating the grain bell 49 in the direction of arrow H by driving the cylinder 51.

The second arm 15 sucks and collects excavated materials such as raked earth and sand 55, and transfers the suction-collected materials to the ground surface 4.
A suction/discharge section 56 is provided to discharge the fluid to the 5 side. This suction discharge part 56 has a suction pipe 57 at the tip of the second anim 15.
The opening 5B of the suction pipe 57 is provided inside the second anim 15 at a position opposite to the auger 42. The suction tube 57 is supported at the outer peripheral position of the second arm 15 via a support portion 59, and a suction hose 6 is attached to the suction tube 57.
0 is connected. Similar to the suction pipe 57, the suction hose 60 also connects to the first arm 14 and the second arm 1 via the support part 61.
It is supported at the outer peripheral position of 5. The suction hose 60 is
It is connected to a vacuum device (not shown), and the vacuum device is installed at a predetermined position on the ground surface 45. As a result, suction force in the direction of the arrow H is generated at the opening 58 due to the operation of the vacuum device, and the earth and sand 55 raked up to the tip of the second arm 15 by the rotation of the shovel 49 in the direction of the arrow H is removed from the opening 58. The liquid is sucked from the section 58 to the suction tube 57 and from the suction tube 57 to the suction hose 60. Therefore, the earth and sand 55 can be discharged and accumulated at a predetermined position on the ground surface 45.

Next, the operation of the excavation and discharge device 10 according to the above embodiment will be explained.

First, when forming a hole 46 for a building foundation in the ground surface 45 as shown in FIG. Make it touch the area. In this state, the auger 42 is moved in the direction indicated by the arrow G by the drive of the hydraulic motor 35.
direction to excavate the earth and sand 55 in the excavation area.

At this time, high-pressure water is injected from the injection nozzle 44A at the tip of the auger 42 to disturb the earth and sand 55 in the excavated area. A part of the excavated earth and sand 55 is lifted up by the rotation of the auger 42 and passes through the opening 58 of the suction collection section 56.
As a result, the earth and sand 55 is sucked and discharged to the ground surface 45 by a vacuum device.
When the excavated earth and sand 55 is piled up in a part of the excavated area by rotation in the direction of arrow G in 2, the auger 42 moves from the protruding position indicated by the two-dot chain line M to the non-protruding position indicated by the solid line, as shown in FIG. At the same time, the shovel 49 is rotated in the direction of arrow H in the state shown by the two-dot chain line. As a result, the earth and sand 55 excavated by the auger 42 is collected at the tip of the second arm 15, and the earth and sand 55 is suctioned and collected at the opening 58 by the operation of the vacuum device. Further, the sucked earth and sand 55 will be discharged to the ground surface 45. By repeating the above operation, the hole 46 for the building foundation can be excavated to a predetermined width and depth.

Next, the operation of the above embodiment will be explained.

According to the excavation and discharge device IO according to the above embodiment.

The auger 42 of the excavation section 27 and the shovel 4 of the scraping section 47
9 is operated inside the excavation area, the earth and sand 55 within the excavation area is excavated, and the sand 55 is raked and discharged to a predetermined position on the ground surface part 45 by the suction and discharge part 56. As a result, it becomes possible to safely and effectively excavate and discharge the earth and sand 55 and other objects to be excavated, regardless of the width or depth of the excavation area. In addition, in the excavation and discharge device 10 according to the above embodiment, by making the length of the suction hose 60 relatively long, 200 to 300 m, it is possible to directly discharge excavated materials such as the earth and sand 55 to the collection site. becomes. As a result, it becomes possible to improve the efficiency of the discharge work compared to the conventional method of transporting earth and sand from a construction site to a collection site by truck or the like.

FIG. 5 is a sectional view showing an excavating and discharging device 70 used in the underground box industry according to another embodiment of the present invention. This excavation and discharge device 70 includes an auger 4 similar to the excavation and discharge device 10.
2. It is equipped with a shovel 49 and a suction/discharge part 56, and is used to form a hole 71 for a bridge girder foundation, and is disposed inside a sheet pile 73 that partitions a certain area of a river 72. That is, the hole 71 for the bridge girder foundation is formed by excavating the earth and sand 55 at the bottom of the river 72 divided by the sheet piles 73. The excavating and discharging device 70 has the same configuration as the second arm 15 of the excavating and discharging device 10 according to the above embodiment, and includes an arm 74. A base end portion of the arm 74 is connected to a drive shaft 77 of a motor 76 via a universal joint 75. The motor 76 is connected to a floor plate 78 supported by the sheet pile 73.
As a result, by driving the swing regulation device (not shown) and rotating the drive shaft 77 of the motor 76, the arm 7
4 can be rotated in the direction of arrow N. In this state, the auger 42 and shovel 49 of the excavation and discharge device 70 are operated within the excavation area surrounded by the sheet piles 73 to excavate the earth and sand 55 within the excavation area, and suction and discharge the earth and sand 55 in a raking state. The portion 56 makes it possible to discharge to a predetermined discharge position.

[Effects of the Invention] As described above, the excavation and discharge device according to the present invention includes an excavation section that excavates an excavated object, a raking section that scrapes up the excavated object, and a raked up excavated object ζr. Because it is equipped with a suction/discharge unit that suctions, collects, and discharges earth and sand, it has the effect of safely and efficiently excavating and discharging materials such as earth and sand, regardless of the width or depth of the excavation area. be.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an excavating and discharging device according to an embodiment of the present invention, FIG. 2 is a side view showing a vehicle equipped with the excavating and discharging device shown in FIG. 1, and FIGS. 3 and 4 1 relates to the state in which a hole for a building foundation is excavated by the excavation and discharge device shown in FIG. 1, FIG. 3 is a sectional view showing the operating state of the excavation part, and FIG.
The figure is a sectional view showing the operating state of the scraping section, and FIG. 10.70...Drilling discharge device, 27...Drilling department, 4
2... Auger, 47... Scraping part, 49... Shovel, 56... Suction/discharge part, 57... Suction pipe. Agent Patent Attorney Osamu Shiokawa Figure 4 Figure 5

Claims (1)

[Claims] (1) Excavation comprising an excavation section for excavating the excavated object, a raking section for raking up the excavated object, and a suction and discharge section for suction collecting and discharging the raked up excavated object. Ejection device.