JP6703912B2 - Attachment for stirring and mixing and method for stirring and mixing - Google Patents

Description

The present invention relates to a stirring and mixing attachment and a stirring and mixing method, and more particularly, to a stirring and mixing attachment and a stirring and mixing method capable of efficiently stirring and mixing earth and sand or the like with a simple configuration.

A hydraulic excavator may be used to stir and mix a solidifying material such as a cement-based solidifying material in soft soil. At that time, an excavating bucket equipped with a stirring device has been proposed as a device for efficiently stirring and mixing earth and sand (for example, Patent Document 1).

The bucket of Patent Document 1 is provided with a plurality of stirring blades on a rotating shaft rotatably attached to the bucket body, and a plurality of slits are provided in the rear portion of the bucket body so as to correspond to the respective stirring blades. This bucket is attached to the tip of the arm of the hydraulic excavator, and the rotating shaft is rotated by a hydraulic motor, whereby the stirring blades stir and mix the soil and the like. According to this bucket, stirring and mixing can be efficiently performed by appropriately setting the rotation speed of the stirring blade. However, this bucket requires a separate hydraulic pipe or the like for rotationally driving the stirring blade, which complicates the configuration.

JP, 2012-117334, A

An object of the present invention is to provide a stirring/mixing attachment and a stirring/mixing method capable of efficiently stirring and mixing earth and sand or the like with a simple configuration.

In order to achieve the above object, the stirring and mixing attachment of the present invention is a stirring and mixing attachment fixed to an excavating bucket of a hydraulic excavator, and a mounting portion fixed to the bucket and the mounting portion on the bucket. When in a fixed state, a plurality of rod-shaped bodies that extend in the toe direction from the base end portion of the pawls of the bucket and project toward the tip side from the toe are provided, and the plurality of rod-shaped bodies are A first row group disposed adjacent to the outer peripheral surface of the bottom of the bucket, and a second row group spaced apart from the bottom on the outer peripheral side of the first row group and spaced apart from the first row group. A row group, wherein the first row group and the second row group have a plurality of the rod-shaped bodies arranged with a gap in the width direction of the bucket, and the rod-shaped bodies forming the first row group; The rod-shaped members forming the second row group are offset in the width direction of the bucket, and the rod-shaped member has a quadrangular cross section. The direction of a pair of diagonal lines of the quadrangle is the first row group. Is in the same direction as the separating direction of the second row group .

In the stirring and mixing method of the present invention, the above stirring and mixing attachment is fixed to the bucket via the mounting portion, and the hydraulic excavator is operated to move the plurality of rod-shaped bodies in a state of being inserted into an object. Thus, the object is agitated and mixed.
Another stirring and mixing method of the present invention is a mounting part fixed to a bucket for excavation of a hydraulic excavator, and a direction from the base end part of the claw of the bucket to the tip of the toe when the mounting part is fixed to the bucket. A plurality of rod-shaped bodies that extend to the tip side of the toe, and the plurality of rod-shaped bodies are arranged adjacent to the outer peripheral surface of the bottom of the bucket, and a first row group, A first row group and a second row group spaced apart from the bottom on the outer peripheral side of the first row group with a gap therebetween are formed, and the first row group and the second row group are the buckets. Having a plurality of rod-shaped bodies arranged with a gap in the width direction of the bucket, the rod-shaped bodies forming the first row group and the rod-shaped bodies forming the second row group are offset in the width direction of the bucket. The stirring and mixing attachment that is being fixed is fixed to the bucket via the mounting portion, and the hydraulic excavator is operated to scoop an object into the bucket, or the attachment and the bucket to form a plurality of rod-shaped bodies. The object is agitated and mixed by vibrating the bucket in a mounted state.

The stirring/mixing attachment of the present invention has a basic structure including a mounting portion and a plurality of rod-shaped bodies, and has a simple structure that does not require power such as a hydraulic motor. Therefore, there is no need for a hydraulic pipe dedicated to the attachment, and the hydraulic excavator can be mounted on a general hydraulic excavator, which is extremely versatile. Since the plurality of rod-shaped bodies are arranged in a special arrangement, it is possible to efficiently stir and mix the objects by moving these rod-shaped bodies in the object such as earth and sand.

It is also possible that the rod-shaped body has a quadrangular cross section, and the direction of a pair of diagonal lines of the quadrangle is the same as the direction of separation between the first row group and the second row group. With this configuration, the rod-shaped body has a pointed shape in the direction of separation between the first row group and the second row group. As a result, the flow of the object passing through the first row group and the second row group can be made smooth and moderately disturbed, and more thorough stirring and mixing can be performed.

The size of the space between the rod-shaped bodies forming the second row group and the bar-shaped body forming the first row group is such that the space between the adjacent rod-shaped bodies forming the first row group is adjacent to each other. It is preferable that the size is 80% or more and 120% or less. Furthermore, the size of the gap between the rod-shaped bodies that form the second row group and the rod-shaped bodies that form the first row group is such that the adjacent rod-shaped bodies that form the first row group are adjacent to each other. It is advisable to adopt a configuration that is equal to or larger than the size of the gap. These configurations are advantageous for improving the stirring and mixing efficiency.

If the attachment portion is configured to be freely fixed and released from the bucket, the work of fixing and releasing the stirring and mixing attachment to the bucket becomes easy, and the versatility of the stirring and mixing attachment can be enhanced. it can.

In the stirring and mixing method of the present invention, the target may be stirred and mixed by moving the plurality of rod-shaped bodies in the direction of separation between the first row group and the second row group. This facilitates efficient stirring and mixing of the object.

It is explanatory drawing which illustrates the attachment for stirring and mixing of this invention, and the bucket of a hydraulic excavator by a side view. It is explanatory drawing which illustrates the state which fixed the attachment for stirring and mixing of this invention to the bucket by side view. FIG. 3 is a view on arrow A in FIG. 2. It is explanatory drawing which illustrates the arrangement|positioning of the rod-shaped body of FIG. 3 by a cross-sectional view. FIG. 5A shows a state in which the rod-shaped body of the attachment is inserted into the object and is stirred and mixed, and FIG. 5B is an explanatory diagram showing a state in which the object is scooped up by the rod-shaped body. . It is explanatory drawing which shows the condition which an object passes between the rod-shaped bodies of FIG. 4 typically in a cross-sectional view.

Hereinafter, the stirring and mixing attachment and the stirring and mixing method of the present invention will be described based on the embodiments shown in the drawings.

The agitation and mixing attachment 1 of the present invention (hereinafter, referred to as the attachment 1) illustrated in FIGS. 1 to 4 is used by being fixed to an excavation bucket 11 (hereinafter, referred to as the bucket 11) of the hydraulic excavator 10. Using this attachment 1, an object D such as earth and sand is stirred and mixed.

As shown in FIG. 1, the attachment 1 includes a mounting portion 2 fixed to a bucket 11 and a plurality of rod-shaped bodies 3 (3a, 3b). The mounting portion 2 is composed of an intermediate member 2a interposed between the bucket 11 and the plurality of rod-shaped bodies 3 and a fixing member 2b for fixing the intermediate member 2a to the bucket 11.

By interposing the intermediate member 2a between the bucket 11 and the plurality of rod-shaped bodies 3, the rod-shaped bodies 3 are stably arranged with respect to the bucket 11. The contact surface of the intermediate member 2a with the bucket 11 may be formed according to the shape of the bottom surface 13 of the bucket 11 or the outer peripheral surface of the claw 12 of the bucket 11.

The fixing member 2b is a member that can be connected to the claws 12, the cutting blade, the side wall, etc. of the bucket 11. The specifications of the fixing member 2b can be appropriately determined according to the shape of the bucket 11. The fixing member 2b of this embodiment is composed of a clamp that can be fixed to and released from the claw 12 of the bucket 11. Instead of providing the fixing member 2b, the intermediate member 2a and the bucket 11 may be joined by welding.

When the mounting portion 2 is configured to be freely fixed and unfixed with respect to the bucket 11 as in this embodiment, the work of fixing and unfixing the attachment 1 to the bucket 11 becomes easy, and the versatility of the attachment 1 is improved. Will be very high.

The rod-shaped body 3 is composed of a metal square bar, a square pipe, a round bar, a round pipe, or the like. The size of the rod-shaped body 3 can be appropriately determined according to the object D to be stirred and mixed, the size of the bucket 11 to be mounted, and the like. Specifically, for example, in the case of a square bar or a square pipe, one side of the cross section is about 30 mm to 80 mm, and in the case of a round bar or a round pipe, the outer diameter is about 30 mm to 80 mm.

As shown in FIG. 2, the plurality of rod-shaped bodies 3 extend from the base end portion 12 a of the pawl 12 of the bucket 11 in the direction of the toe 12 b (Z direction) when the mounting portion 2 is fixed to the bucket 11. Then, it is arranged so as to project toward the tip side from the toe 12b. The protruding length L of the plurality of rod-shaped bodies 3 from the toe 12b is determined based on the property of the object D and the like. The tip positions of the rod-shaped bodies 3 are basically the same, but can be different.

As shown in FIG. 2, the plurality of rod-shaped bodies 3 constitute a first row group 3A and a second row group 3B. The first row group 3A is arranged adjacent to the outer peripheral surface of the bottom 13 of the bucket 11. The second row group 3B is spaced apart from the bottom 13 of the bucket 11 on the outer peripheral side (X direction) with respect to the first row group 3A, and is arranged with a gap from the first row group 3A.

As shown in FIGS. 3 and 4, the first row group 3A and the second row group 3B include a plurality of rod-shaped bodies 3 (3a, 3b) arranged with a gap in the width direction (Y direction) of the bucket 11. Have respectively. The rod-shaped bodies 3a (hereinafter, rod-shaped bodies 3a) forming the first row group 3A and the rod-shaped bodies 3b (hereinafter, rod-shaped bodies 3b) forming the second row group 3B are offset in the width direction of the bucket 11. In this embodiment, the rod-shaped body 3 is composed of a rectangular rod having a rectangular cross section. The rod-shaped bodies 3a and 3b are arranged such that the direction of a pair of quadrangular diagonal lines in the cross section is the same as the X direction.

More specifically, the rod-shaped members 3a are arranged with a gap g1 between adjacent rods, and the rod-shaped members 3b are arranged with a gap g2 between adjacent rods. The rod-shaped bodies 3a and the rod-shaped bodies 3b are alternately arranged when viewed from the direction of separation (X direction) between the first row group 3A and the second row group 3B. Adjacent rod-shaped bodies 3a and 3b are arranged with a gap g3. It is advisable to arrange the rod-shaped bodies 3b at the central position between the adjacent rod-shaped bodies 3a as viewed in the X direction.

In this embodiment, a plurality of joining members 4 are provided so as to extend in the Y direction, and the rod-shaped bodies 3a and 3b are fixed to the joining members 4 in the above arrangement. The connection member 4 is made of, for example, channel steel or angle steel.

The sizes of the gaps g1, g2, g3 are appropriately determined according to the object D to be stirred and mixed, the required fineness of stirring and mixing, and the like. For example, the gaps g1, g2, and g3 are set within the range of 5 cm to 15 cm. The gap g1 and the gap g2 may have the same size, and the size of the gap g3 may be 80% or more and 120% or less of the size of the gap g1 (gap g2). More preferably, the above condition is satisfied and the size of the gap g3 is set to be equal to or larger than the size of the gap g1.

Next, a stirring and mixing method using the attachment 1 will be described below.

First, as illustrated in FIG. 2, the attachment 1 is fixed to the bucket 11 of the hydraulic excavator 10 via the mounting portion 2. Specifically, the intermediate member 2a is brought into contact with the bottom 13 of the bucket 11 and the claw 12, and the fixing member 2b is fitted and fixed to the claw 12. When the mounting portion 2 does not have the fixing member 2b, the intermediate member 2a and the bucket 11 are joined by welding.

Then, as shown in FIG. 5A, the hydraulic excavator 10 is operated to insert the rod-shaped bodies 3 a and 3 b into the object D. Then, the rod-shaped bodies 3a and 3b are inserted into the object D and moved in the separating direction (X direction) between the first row group 3A and the second row group 3B. This stirring and mixing operation is performed by shifting the positions where the rod-shaped bodies 3a and 3b are inserted in the bucket width direction (Y direction), and stirring and mixing are performed over the required range of the object D.

As shown in FIG. 5( b ), the object D can be scooped up on the attachment 1 and/or the bucket 11 and placed on the plurality of rod-shaped bodies 3 a, 3 b to vibrate the bucket 11. As a result, the object D can be agitated and mixed with the plurality of rod-shaped bodies 3a and 3b by sieving.

In the present invention, as shown in FIG. 6, by moving the first row group 3A and the second row group 3B in the direction in which the plurality of rod-shaped bodies 3a and 3b are inserted in the target object D, the target object is moved. The flowing direction of D can be effectively changed. The object D is efficiently divided and merged in the process of passing through the first row group 3A and the second row group 3B, whereby the object D is efficiently stirred and mixed. When the object D has variations in viscosity and specific gravity, the variations can be made uniform more quickly. When the object D includes a plurality of materials, these materials can be more evenly dispersed.

When the size of the gap g3 is 80% or more and 120% or less of the size of the gap g1 (gap g2), the object D is less likely to be clogged in the process of passing through the first row group 3A and the second row group 3B, and The attachment 1 that can efficiently stir and mix the object D can be provided. If the size of the gap g3 is less than 80% of the size of the gap g1 (gap g2), the object D that has passed through the gap g1 is likely to be clogged in the gap g3, and the stirring and mixing capability of the attachment 1 is reduced. On the other hand, when the size of the gap g3 is more than 120% of the size of the gap g1, the change in the flow direction of the object D that has passed through the gap g1 becomes small, and the stirring and mixing ability of the attachment 1 decreases.

Further, when the size of the gap g3 is set to be equal to or larger than the size of the gap g1, the flow rate of the object D that can pass through the gap g3 can be increased relative to the flow rate of the object D that can pass through the gap g1. It becomes difficult for the subject D to stay in the gap g3. Therefore, the plurality of rod-shaped bodies 3a and 3b can smoothly pass the object D while appropriately disturbing it, and the stirring and mixing can be further efficiently performed.

In this embodiment, since the rod-shaped bodies 3a and 3b having a quadrangular cross section have a sharp shape in the direction of separation between the first row group 3A and the second row group 3B, a plurality of rod-shaped bodies 3a, It is possible to reduce the resistance when moving the first row group 3A and the second row group 3B in the direction in which the first row group 3A and the second row group 3B are separated with the object 3b inserted in the object D. Therefore, it becomes possible to move the plurality of rod-shaped bodies 3a and 3b more smoothly in the object D and to divide them sharply. Along with this, the stirring and mixing efficiency can be further improved.

As described above, in the attachment 1 of the present invention, since the plurality of rod-shaped bodies 3a and 3b are arranged in a specially devised arrangement as described above, the plurality of rod-shaped bodies 3a and 3b are moved in the object D. This makes it possible to efficiently stir and mix the object D. In addition, the attachment 1 has a basic structure including the mounting portion 2 and the plurality of rod-shaped bodies 3a and 3b, and has a simple structure that does not require power such as a hydraulic motor. Therefore, a hydraulic pipe dedicated to the attachment is not required, and the hydraulic excavator 10 can be mounted on a general hydraulic excavator 10, so that the versatility is very high.

By arranging the plurality of rod-shaped bodies 3a and 3b so as to project toward the tip side of the toe 12b of the bucket 11, it is possible to stir and mix a deeper range once compared to the case where stirring and mixing are performed with the bucket 11 alone. It has become. Further, by vibrating the bucket 11 with the object D placed on the plurality of rod-shaped bodies 3a and 3b, the earth mass of the object D can be finely crushed and mixed while stirring.

When the length from the center of the bucket mounting pin 14 to the toe 12b is the bucket list radius R, the protruding length L protruding from the toe 12b of each rod-shaped body 3a, 3b is 0.2 times the bucket list radius R. It is recommended to set the length to ~1.0 times. As a result, the attachment 1 that can be easily operated by the hydraulic excavator 10 can be provided while widening the range of stirring and mixing at one time.

When producing a modified soil by stirring and mixing earth and sand consisting of a predetermined amount of dredged soil and a calcia modifier, the following experiments 1 to 3 were performed to grasp the stirring and mixing efficiency. The stirring and mixing efficiency was evaluated by the wet density of the modified soil (after stirring and mixing) with respect to the wet density of the dredged soil (before stirring and mixing), and the mixing ratio R calculated by the following formula (1). The larger the degree of change in the wet density of the modified soil with respect to the wet density of the dredged soil, the better the stirring and mixing efficiency, and the closer the numerical value of the mixing rate R is to the design value set before mixing of 30%, This means that the stirring and mixing efficiency is good.
Mixing ratio R={(b−a)/(c−a)}×100(%) (1)
Here, a is wet density of dredged material (g / ^cm 3), b is the wet density (g / ^cm 3) of the modified soil, c is is-dry density of calcia modifier (g / cm ³⁾ ..

Experiment 1: Six modified rods having the same specifications were arranged in a row with a gap in the width direction, and the soil was mixed and stirred manually to produce a modified soil. Each rod-shaped body was inserted into the earth and sand under the same conditions, and repeatedly moved in the front-rear direction under the same conditions, and mixed by stirring. The width of the rod-shaped body is 20 mm, and the size of the gap between the rod-shaped bodies adjacent in the width direction is 100 mm, which is substantially the same, and only the cross-sectional shape of the rod-shaped bodies is different. ) Was used.

Form 1 is a circular cross-section, Form 2 is a square cross-section, Form 3 is a rhombus cross-section, and in Form 2, a pair of opposed faces in the cross-section of the rod-shaped body are arranged in the width direction and the front-back direction. did. In the form 3, each of the diagonal lines in the cross section of the rod-shaped body is arranged in the width direction and the front-back direction. The wet density of the dredged soil before stirring and mixing was 1.52 (g/cm ³ ). The results of the experiment are shown in Table 1. It was found that Form 3 is easier to mix by human power than Form 1 and Form 2, and has a low resistance when mixed by stirring.

From the results in Table 1, regarding the wet density and the mixing ratio R, there is no remarkable difference between the forms 1 to 3, and no difference is visually observed in the stirring and mixing state. It can be seen that the resistance F is much smaller in the form 3 than in the forms 1 and 2, and the energy required for stirring and mixing can be reduced.

Experiment 2: Two types of experimental instruments (Example 1 and Comparative Example) each having a square shaped steel having a cross section of 40 mm on one side and a plurality of rod-shaped bodies in which diagonal lines are arranged in the width direction and the front-back direction, respectively. Each was attached to the same backhoe bucket and stirred and mixed to produce a modified soil. Each rod-shaped body protruded from the toe of the bucket by about 1000 mm, and while only the rod-shaped body was inserted into the earth and sand under substantially the same conditions, the rod-shaped members were repeatedly moved in the front-rear direction under the same conditions and mixed by stirring. In Example 1 and the comparative example, the size of the gap between the rod-shaped bodies adjacent to each other in the width direction was substantially 60 mm, and only the number and arrangement of the rod-shaped bodies were different.

Example 1 has a first row group in which five rod-shaped bodies each having a rhombus cross section are arranged in one row at intervals in the width direction, and a second row group. The second row group is arranged with a gap of 60 mm in the front-rear direction with respect to the first row group, and the rod-shaped bodies of the first row group and the second row group are offset in the width direction. The rod-shaped bodies of the second row group are offsets arranged in the centers of the gaps of the rod-shaped bodies that are adjacent to each other in the width direction of the first row group. The comparative example is a specification having only the above first column group.

In Example 1, the wet density of the dredged soil before stirring and mixing was 1.53 (g/cm ³ ), and in Comparative Example, it was 1.51 (g/cm ³ ). The results of the experiment are shown in Table 2.

From the results in Table 2, it can be seen that Example 1 is superior to the Comparative Example in stirring and mixing efficiency (wet density and mixing ratio R).

Experiment 3: Three types of buckets having different specifications (Example 1, Conventional Examples 1 and 2) were attached to the same backhoe, and the soil was stirred and mixed under substantially the same conditions to produce a modified soil.

In Example 2, a square shaped steel having a cross section of one side of 40 mm was arranged in a row with five rod-shaped bodies each having diagonal lines oriented in the width direction and the front-back direction with a gap of 150 mm in the width direction. It has a first column group and a second column group. The rod-shaped bodies of the first row group and the second row group are offset in the width direction. The rod-shaped bodies of the second row group are offsets arranged in the centers of the gaps of the rod-shaped bodies that are adjacent to each other in the width direction of the first row group. The size of the gap between the rod-shaped bodies forming the first row group and the rod-shaped bodies forming the second row group was 140 mm. Each rod-shaped body protruded from the tip of the toe of the bucket by about 700 mm, and while only the rod-shaped body was inserted into the earth and sand, the rod-shaped bodies were repeatedly moved in the front-rear direction and mixed by stirring.

Conventional Example 1 is a general mixing bucket having a rotor that is rotationally driven, and was stirred and mixed while being buried in the earth and sand.

The conventional example 2 is a general excavation bucket, and the bucket was repeatedly moved in the front-rear direction in a state of being inserted into the earth and sand to be mixed by stirring.

In both Example 1 and Conventional Examples 1 and 2, the wet density of the dredged soil before stirring and mixing was 1.59 (g/cm ³ ), and the results of the experiment are shown in Table 3.

From the results in Table 3, it can be seen that Example 2 is superior in stirring and mixing efficiency (wet density and mixing ratio R) to Conventional Example 2 and has the same performance as that of Conventional Example 1. It should be noted that although in Example 2 some clogging of earth and sand occurred between the first row group and the second row group, it has been confirmed that this can be improved by increasing the gap between the two to about 10 to 20 mm.

DESCRIPTION OF SYMBOLS 1 Stirring and mixing attachment 2 Mounting part 2a Mediating member 2b Fixing members 3, 3a, 3b Rod-shaped body 3A First row group 3B Second row group 4 Connection member 10 Hydraulic excavator 11 Excavation bucket 12 Claw 12a Claw base end 12b Toe 13 Bucket bottom 14 Bucket mounting pin D Object R Bucket list radius

Claims (7)

A stirring and mixing attachment fixed to an excavating bucket of a hydraulic excavator, wherein a mounting portion fixed to the bucket and a base end of a claw of the bucket when the mounting portion is fixed to the bucket A plurality of rod-shaped members that extend in the toe direction from the portion and project toward the tip side of the toe,
The plurality of rod-shaped bodies are arranged adjacent to an outer peripheral surface of the bottom of the bucket, and a first row group and a gap between the first row group and the first row group that are spaced apart from the bottom on an outer peripheral side of the first row group. And a second column group arranged with a space between,
The first row group and the second row group have a plurality of the rod-shaped bodies arranged with a gap in the width direction of the bucket, and form the first row group and the rod-shaped bodies and the second row group. The rod-shaped body is offset in the width direction of the bucket , the rod-shaped body has a quadrangular cross section, and the direction of a pair of diagonal lines of the quadrilateral is the distance between the first row group and the second row group. Attachment for stirring and mixing characterized by being in the same direction as the direction . The size of the space between the rod-shaped bodies forming the second row group and the bar-shaped body forming the first row group is such that the space between the adjacent rod-shaped bodies forming the first row group is adjacent to each other. The attachment for stirring and mixing according to claim 1 , which has a size of 80% or more and 120% or less. The size of the space between the rod-shaped bodies forming the second row group and the bar-shaped body forming the first row group is such that the space between the adjacent rod-shaped bodies forming the first row group is adjacent to each other. The attachment for stirring and mixing according to claim 2 , which has a size or more. The stirring/mixing attachment according to any one of claims 1 to 3 , wherein the attachment portion is configured to be freely fixed and released from the bucket. The attachment for stirring and mixing according to any one of claims 1 to 4 is fixed to the bucket via the mounting portion, and the hydraulic excavator is operated to move the plurality of rod-shaped bodies inserted in an object. A stirring and mixing method, wherein the object is stirred and mixed by performing the above. The stirring and mixing method according to claim 5 , wherein the plurality of rod-shaped bodies are moved in a direction in which the first row group and the second row group are separated from each other. When the mounting portion fixed to the excavating bucket of the hydraulic excavator and the mounting portion is fixed to the bucket, the mounting portion extends from the base end portion of the pawl of the bucket in the direction of the toe, and is more than the toe of the toe. With a plurality of rod-shaped bodies protruding toward the tip side,
The plurality of rod-shaped bodies are arranged adjacent to an outer peripheral surface of the bottom of the bucket, and a first row group and a gap between the first row group and the first row group that are spaced apart from the bottom on an outer peripheral side of the first row group. And a second column group arranged with a space between,
The first row group and the second row group have a plurality of the rod-shaped bodies arranged with a gap in the width direction of the bucket, and form the first row group and the rod-shaped bodies and the second row group. An agitation and mixing attachment, in which the rod-shaped body is offset in the width direction of the bucket, is fixed to the bucket via the mounting portion, and the object is operated by operating the hydraulic excavator to the bucket, or the attachment and A stirring and mixing method characterized in that the object is agitated and mixed by vibrating the bucket while scooping it up on the bucket and placing it on the plurality of rod-shaped bodies .

Images