JPH08105285A - Excavating bucket - Google Patents

Abstract

PURPOSE: Tp enable efficient and rational boring work through efficient excavation and take-in of excavated sediment by forming an intake for excavated sediment between a bucket body and a claw auger at the time of descent, and forming a sediment discharge space between the bucket body and the claw auger at the time of ascent. CONSTITUTION: The bucket body 1 of an excavating bucket hung from a heavy machine is lowered, and a claw auger 3 is placed in the state of slightly protruding from the lower end of the bucket body 1. In this state, excavated sediment is successively taken into the bucket body 1 through the auger part 32 while excavating the underground by the claws 31 of the excavating bucket. The excavated sediment is hardened inside the bucket body 1 by the pressing force of the auger part 32. Excavation and excavated sediment take-in work are repeated, and in the stage of filling the inside of the bucket body with the taken-in sediment, the excavating bucket is removed from an excavated hole and moved into a taken-in sediment discharge place, the load-carrying platform of a vehicle, or the like. The bucket body 1 is then moved up to release the auger part 32. The taken-in sediment held at the auger part 32 is thereby discharged of itself.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavating bucket used in a construction method for constructing piles such as concrete.

[0002]

2. Description of the Related Art Conventionally, for example, a drilling bucket is well known as a device that employs a bucket body for accommodating excavated soil and an auger (excavation means) having a large number of claws for excavation. This kind of drilling bucket has a hollow bucket main body having an openable / closable lid body having an excavated earth and sand intake port usually provided on a rotating shaft (connection shaft), and a large number of claws provided on the lid body of the bucket main body. ,,. Therefore, the earth and sand excavated by the claw is taken into the bucket body, and then the drilling bucket is removed from the excavation hole, and the earth and sand (taken earth and sand) taken into the bucket body is discharged through the opening of the lid. It is composed.

The following prior art, for example, has been adopted as a structure adopting the same structure and efficiently discharging the taken-in earth and sand. (1) A drilling bucket for rock drilling according to Japanese Patent Laid-Open No. 6-50076, which has a bottom plate provided at a lower end of a rotary shaft having a roller portion for rock rock crushing, and the drilling bucket is spaced apart from the bottom plate to provide the drilling bucket. It is configured to move up and down along a rotary shaft, and is characterized in that the taken-in soil and the like are discharged using a discharge port formed when the drilling bucket is raised. (2) A drilling bucket for rock drilling according to Japanese Patent Laid-Open No. 5-302487, the gist of which is to provide a large number of cutting blades at the tip circumferential portion of a drilling bucket having an opening / closing bottom plate, and ground sand or the like provided on the bottom plate. It is a structure in which a guide claw and a roller part for crushing rock mass are provided around the hole for taking in and the hole, and using the hole for taking in earth and sand crushed by the roller part and the cutting blade into the drilling bucket. It is characterized by taking in. (3) JP-A-5-7
The No. 9268 automatic earth drilling bucket has a structure in which a bottom lid having an intake hole and a claw is opened and closed by a mechanical operation, and the bottom lid is reliably opened and closed.

[0004]

In the invention described in detail above, the drilling bucket is intended to efficiently remove the earth and sand taken in, and how efficiently and in large quantities the excavated (crushed) earth and sand can be obtained. The technique of taking in has not been improved at all, and there is a problem here. The improvement of this problem is an extremely important technique for efficient excavation, uptake of this excavated soil, and smooth drilling work, and a solution thereof is strongly desired.

[0005]

In view of the above, the present invention provides
For the purpose of achieving smooth drilling work or the like while achieving efficient excavation by an auger with a claw and taking in excavated earth and sand, or reliably and easily ejecting the taken earth and sand in the bucket body, The following configuration is adopted.

That is, the excavating bucket of the present invention comprises a rotating shaft having an auger with a claw on the excavating side, a bucket main body which is provided on the rotating shaft so as to be able to move up and down, and is fitted over the auger with a claw. The excavated earth and sand intake formed between the bucket body and the auger with the claw when the bucket body descends, and the soil removal formed between the bucket body and the auger with the claw when the bucket body rises. It consists of space and.

Further, the present invention adopts the following constitution for the purpose of efficiently and surely taking in earth and sand, and being able to accommodate a relatively large amount of earth and sand.

That is, the excavation bucket of the present invention has a rotating shaft having an auger with a claw on the excavating side, and a soil and sand intake provided on the rotating shaft so as to be able to move up and down and fitted into a part of the auger with a claw. Bucket body for, and the bucket body for this earth and sand intake, when the bucket body for the earth and sand intake concerned and the auger with claws formed between the bucket body for the earth and sand intake and the bucket body for the earth and sand intake It is composed of a bucket body for taking in the earth and sand and a soil discharge space formed between the auger with the claws when rising.

[0009]

Next, the operation (excavation, earth removal, etc.) of the present invention will be described. First, in the example shown in FIGS. 1 to 5, the bucket main body of the excavation bucket suspended from the heavy machine is lowered, and the auger with claws is projected slightly from the lower end of the bucket main body, for example. Then, while excavating the ground with the claws of the excavation bucket, the excavated soil is sequentially taken into the bucket body through the auger section, and the excavation is performed in the bucket body through the uptake force of the auger section. Solidify the sand. As a result, as will be described later, even if the excavation bucket is removed from the excavation hole, as a general rule, there is no risk that the taken-in sand will fall from the auger with claws (of course, if the above situation does not occur due to the soil quality). It is also possible.).

When the above-mentioned operations such as excavation and intake of excavated earth and sand are repeated and the inside of the bucket body is filled with the incorporated earth and sand, the excavation bucket is removed from the excavation hole, and the place where the taken-in earth and sand is discharged. And move to the loading platform of the vehicle. After that, the bucket body is lifted to open the auger portion, and as a general rule, the incorporated earth and sand held in the auger portion (stored in a wound shape) is naturally discharged. Of course, when natural earth unloading is difficult, other earth unloading operations such as human means and automatic earth unloading means are adopted.

Next, in the example shown in FIGS. 6 to 8, the bucket main body of the excavation bucket suspended from the heavy equipment is lowered,
From the lower end of the bucket body, the auger with nails, for example,
The situation will be a little overhanging. While excavating the ground with the claws of the excavation bucket, the excavated earth and sand are sequentially taken in through the auger section to the bucket body for taking in the earth and sand, which has a large space, and the auger section takes in the pressing force. Through the via, and is sequentially and smoothly taken into the bucket body for taking in the earth and sand, and is reliably and easily accommodated.
In addition, excavated sand is solidified. Therefore, there is no risk that the taken-in sediment will fall from the gap between the bucket for taking in sediment and the auger portion (of course, the above situation may not occur depending on the soil quality).

[0012] The above-mentioned operations such as excavation and intake of excavated earth and sand are repeated, and when the space of the bucket main body for earth and sand intake is filled with intake earth and sand, the excavation bucket is removed from the excavation hole and taken in. Move to a place where earth and sand are discharged and a loading platform of the vehicle. After that, the bucket body for taking in sand and sand is lifted to open the auger portion, so that it is accommodated in the bucket for taking in sand and is held by a part of the auger portion as a rule (it is accommodated in a wound form). )
The soil taken in is naturally discharged. Of course,
When natural earth unloading is difficult, other earth unloading operations such as human means and automatic earth unloading means are adopted.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, in the examples shown in FIGS. 1 to 5, a hollow bucket body 1 (an example) is provided on a rotating shaft 2 (a connecting shaft and a drive shaft member) so as to be able to move up and down, and the lifting is performed by a hydraulic means. , Wire operating means, linking means, etc. are optional. The rotary shaft 2 is provided with an auger 3 with a claw, and the auger 3 with a claw is fitted by the bucket body 1. When the bucket body 1 descends, a large number of claws 3
1 and a part of the auger portion 32 are the lower end 1a of the bucket body 1.
When the bucket body 1 rises, almost all of the auger portion 32 projects from the lower end 1a of the bucket body 1 to form an earth discharging space B (see FIG. 3). (See) is configured (an example.). In addition, 1b shows the lid part of the bucket body 1.

As described above, as shown in FIG. 1, when the bucket body 1 descends, an intake port A for taking in excavated sand is formed between the lower end 1a of the bucket body 1 and the auger portion 32 (in one example. is there.). Incidentally, when a shutter (not shown) is provided on the auger section 32, or when the bucket body 1
When a cutting blade (not shown) is provided, the design may be changed as appropriate.

Next, the example shown in FIGS. 6 to 8 is almost the same as the above-mentioned example, but the bucket body 111 for taking in sand and sand.
An auger 3 with a claw is partially inserted in the lower part 111a of the container, and a large space 112 for the intake of earth and sand is provided in the bucket body 111 for the intake of earth and sand. Be done. Also, as shown in the figure,
The claw auger 3 has a short size, and as described above, has a structure in which a large space 112 for taking in sand is formed in the bucket body 111 for taking in sand. Other configurations are the same as the above-mentioned example.

[0016]

As described in detail above, the present invention enables the bucket body or the bucket body for taking in dirt and sand to be raised and lowered on a rotating shaft having an auger with a claw, and the take-in port is Since the soil discharge space is formed when the bucket body or the like is raised, the following effects are obtained.

(1) Efficient excavation by an auger with a claw and smooth intake of excavated soil are achieved.

(2) Efficient and rational drilling work is achieved through the efficient excavation and smooth intake of excavated soil.

(3) It is possible to reliably and efficiently remove the taken-in earth and sand by raising the bucket body.

(4) With the construction in which the bucket main body for taking in sediment is provided, there is a practical effect that a large amount of excavated sediment can be taken in, including reliable, smooth and efficient intake of earth and sand.

[Brief description of drawings]

FIG. 1 is a front view of the first invention.

FIG. 2 is a bottom view of the first invention.

FIG. 3 is a front view showing when the basket body of the first invention is raised.

FIG. 4 is a schematic cross-sectional view showing the progress of excavation of the first invention.

FIG. 5 is a schematic cross-sectional view showing a state of removal from the excavation hole of the first invention.

FIG. 6 is a front sectional view of a second invention.

FIG. 7 is a schematic cross-sectional view showing the state of soil and sand taken in according to the second invention.

FIG. 8 is a schematic cross-sectional view showing a raised state of the basket body of the second invention.

[Explanation of symbols]

 1 Bucket Main Body 1a Lower End 1b Lid 2 Rotating Shaft 3 Claw Auger 31 Claw 32 Auger 111 Bucket Main Body for Sediment Intake 111a Lower 112 Space A Intake B B Discharge Space

Claims (3)

[Claims] 1. A rotating shaft having a claw auger on the excavating side, a bucket main body which is provided to be movable up and down on the rotating shaft and is fitted into the claw auger, and the bucket main body when the bucket main body descends. And an auger with a claw, and an excavation earth and sand intake port formed between the bucket body and the auger with a claw when the bucket body rises. Bucket. 2. A rotary shaft having an auger with a claw on the excavation side, a bucket main body which is provided on the rotary shaft so as to be able to move up and down, and is fitted onto a part of the auger with a claw for taking in sand and sand. When the bucket body for taking in is descending, the bucket body for taking in excavated sand formed between the bucket body for taking in the sediment and the auger with the claw, and the bucket body for taking in the sediment when the bucket body for taking up the sand is raised. An excavation bucket including a soil discharge space formed between the main body and the auger with a claw. 3. The excavating bucket according to claim 1, wherein a shutter is attached to the auger portion of the auger with a claw.