JPH10195911A - Excavating, mixing and agitating equipment for construction machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the efficiency of excavation and mixing and agitating with a soil strengthening agent by hydraulically rotating the excavating, mixing and stirring vanes arranged radially with excavating and stirring blades attached to a lateral rotating shaft with attachments arranged to the tip of a construction machine arm. SOLUTION: An excavating, mixing and stirring vanes 3 are connected to a lateral rotating shaft 4 which is connected to a hydraulically rotatable base 5 connected to a hydraulic motor 8 at an upper position which utilizes oil pressure from construction machinery such as backhoe or the like. Next, sprockets fixed to the lateral rotating shaft 4 are connected together with chains. In this case, the equipment is mainly used for strengthening the ground, and a supply hose and a supply hole 10 for chemical such as a soil strengthening agent, soil stabilizer and auxiliary excavation agent are arranged at the upper portion of the excavating, mixing and stirring vanes 3. Each excavating and stirring blade 3a is attached to the lateral rotating shaft 4 with the blade direction tilted, and the whole is arranged to a spiral shape and the stirring efficiency for sediment is improved. In this way, only by installing the equipment to a construction machinery, the mixing and stirring work for various chemicals, water, and drilling mud can be performed efficiently in addition to the excavation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment provided at the tip of an arm (boom) of a construction machine such as a backhoe or a power shovel, which is capable of performing mixing and agitation by excavation and rotation of a horizontal axis to improve soft ground. The present invention relates to a drilling mixing and stirring device for construction equipment particularly useful for applications such as.

[0002]

2. Description of the Related Art Various attachments provided at the tip of an arm of a construction machine such as a backhoe or a power shovel have already been proposed and put into practical use. For example, in deep digging, as shown in JP-A-3-28425, a telescopic arm is attached to the arm of a power shovel, and a bucket, a gripper, a crusher, etc. can be attached to the tip of the arm, As shown in the figure, a hydraulic motor is provided to the arm of the construction machine, and a drilling attachment or bucket that rotates on the vertical axis is attached to the arm. These conventional things are usually backhoe work and shovel work,
Attachments suitable for drilling work and the like are replaced and used.

[0003]

Although the present invention is not limited to soft ground, when the ground is strengthened, excavation near the surface and stirring of excavated earth and sand are easy, and existing attachments can be attached to ordinary construction equipment. It can be done by attaching,
When it becomes deep, it becomes difficult to excavate, and even when excavating, the mixing and stirring work becomes difficult. The stirring operation referred to here includes an operation for facilitating the handling of excavated earth and sand, a mixing operation with a ground reinforcing agent, and the like. Conventionally, excavation is equipped with an attachment suitable for excavation, and mixing and agitation is also used to supply ground strengthening agent (cement milk, etc.) from the ground using the attachment and swirl the arm of the construction machine to agitate or excavate. The earth and sand were taken out to the ground, or mixed and stirred under a device capable of mixing and stirring underground. Such an operation is inefficient and has a problem that sufficiently uniform mixing and stirring cannot be performed.
An object of the present invention is to provide an attachment provided at the tip of an arm of a construction machine such as a backhoe or a power shovel, which can perform both such excavation and mixing and stirring with a ground strengthening agent or the like with high efficiency.

[0004]

Means for Solving the Problems According to the present invention, there is provided an attachment provided at the tip of a construction machine arm such as a backhoe, wherein the attachment comprises a plurality of excavating and stirring blades which are radially or spirally mounted on a horizontal rotary shaft. Is a drilling / mixing / stirring apparatus for a construction machine configured to rotate a drilling / mixing / stirring blade provided in the apparatus by hydraulic pressure from the construction machine. This device is suitable for ground strengthening work by providing a supply port of various chemicals used for drilling mixing and stirring such as ground strengthening agent, ground stabilizer, water, drilling mud, etc. near the drilling mixing stirring blade. .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of an example in which a digging / mixing / mixing device 1 of the present invention is provided at the tip of a backhoe arm 2 of a construction machine. Reference numeral 1 denotes an example in which work is being performed. The state of A is a state where the arm is near the uppermost part, the state at the time of short distance movement or storage, and the state of B is a state where the backhoe arm 2 is extended at the time of shallow digging. The earth and sand can be drawn toward the backhoe while excavating. At this time, the digging / mixing / stirring device 1 of the present invention can rotate the digging / mixing / stirring blades 3, but can also scrape the earth and sand with the rotation stopped. E indicates a state of deep digging.

The excavating / mixing / stirring apparatus 1 of the present invention rotates the excavating / mixing / stirring blade 3 on a horizontal rotary shaft 4. The horizontal rotary shaft 4 is shown in FIGS. 2 and 3, and is supported below the vertically long left and right bases 5, and the upper part of the base 5 connects the link 7 to the arm 2 and the swing cylinder 6 as shown in FIG. 1. Are connected via The horizontal rotary shaft 4 is provided with a large number of excavating and stirring blades 3a radially and in plural rows in the longitudinal direction of the rotary shaft 4. Drilling stirring blade
When radially arranging the 3a, each digging and stirring blade 3a is mounted so that the mounting direction is oblique in the width direction with respect to the horizontal rotary shaft 4, thereby forming a spiral digging and mixing blade 3 as a whole, and The stirring efficiency is improved. Excavation can be performed by the rotation of the horizontal rotary shaft 4, and the structure can be stirred.

The excavating mixing stirring blade 3 rotates the horizontal rotary shaft 4 by hydraulic pressure from a construction machine. To this end, a hydraulic motor 8 that utilizes the hydraulic pressure of the backhoe is provided above the base 5, and sprockets provided on the hydraulic motor 8 and the horizontal rotary shaft 4 are rotatably connected by a chain 9.

[0008] Since the device of the present invention is mainly used for ground reinforcement, a ground reinforcing agent,
A supply port 10 and a supply hose 11 for chemicals such as a ground stabilizer and a drilling aid are provided. The ground reinforcement is supplied from a tank (not shown).

[0009]

According to the present invention, not only excavation but also mixing and agitation work of various chemicals, water, drilling mud, etc. can be performed with high efficiency simply by being mounted on a construction machine.

[Brief description of the drawings]

FIG. 1 is a side view of an example in which the excavation mixing and stirring device of the present invention is provided at the tip of an arm of a backhoe.

FIG. 2 is a side view of a drilling mixing and stirring device.

FIG. 3 is a front view of the excavation mixing and stirring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drilling mixing and stirring device 2 Arm 3 Drilling mixing and stirring blade 4 Horizontal rotary shaft 5 Base 6 Swing cylinder 7 Link 8 Hydraulic motor 9 Chain 10 Supply port 11 Supply hose

Claims (2)

[Claims] 1. An attachment provided at the tip of a construction machine arm such as a backhoe, wherein the attachment is provided with a plurality of excavation / mixing blades provided radially or spirally on a horizontal rotary shaft by hydraulic pressure from a construction machine. A drilling mixing and stirring device for construction machinery that is configured to rotate. 2. The excavating / mixing / stirring apparatus for a construction machine according to claim 1, wherein a supply port for a chemical used for excavating / mixing / stirring is provided near the excavating / mixing / stirring blade.