JPH0841865A - Civil engineering construction machinery - Google Patents

Abstract

PURPOSE:To carry out building foundation work efficiently by mounting a mixing and stirring machine capable of moving up and down on the vehicle equipped with an excavation working machine. CONSTITUTION:An excavation mixing and stirring machine 34 is mounted on the vehicle body 21 equipped with a bucked type excavation working machine 25 so that it is capable of moving up and down. After that, a bag filled with a ground solidifying agent is suspended with a bucket 33, and the solidifying agent is scattered while moving a traveling body 21. A vertically swingable cylinder 43 is contracted to swing a mounting arm 41 downward, a mounting bracket 38 is horizontally moved to position an excavation mixing and stirring rotor 56 to a middle part to the traveling body 21, the mounting arm 41 is further moved downward, and the solidifying agent and earth are mixed and stirred while excavating the ground to make uniform soil. Successively, a storing cylinder 43 is contracted and is positioned upward from the ground, the surface of the uniform soil is evenly excavated, uniform earth is compacted with the rear of the bucket to level the surface, and after that, it is cured to make hard ground. Accordingly, building foundation can be efficiently constructed by one civil engineering construction machinery.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering construction machine for constructing building foundations and the like.

[0002]

2. Description of the Related Art As a foundation for a building, there is known one in which concrete is cast in situ on the entire building ground to reinforce the soft ground and prevent the building from sinking.

In addition, as a foundation for a building, a ground solidifying material such as lime or cement is sprinkled on the ground of a building, and the ground solidifying material is mixed with soil and stirred to improve the soil so that the soil becomes a hard ground. Therefore, it is used as a building foundation.

[0004]

[Problems to be Solved by the Invention] When the former concrete is cast in situ to form a foundation for a building, the entire surface of the building ground is excavated to a predetermined depth, and a grub stone or the like is laid at the bottom of the ground. After that, concrete is poured, which makes the work very troublesome.

When the latter soil is improved to form hard ground, the work is relatively easier than in the former case, but after the building ground is constructed, the ground solidification material and the earth and sand of the building ground are removed. Since it is mixed and stirred, a civil engineering and construction machine for that purpose is required. On the other hand, when constructing a building, a trench digging operation and a backfilling operation are performed, so a civil engineering construction machine for that purpose is required. Therefore, two types of civil engineering construction machines are needed.

Therefore, an object of the present invention is to provide a civil engineering construction machine capable of solving the above-mentioned problems.

[0007]

A bucket type excavating work machine 25 is attached to a vehicle body provided with a traveling body 21, and an excavation mixing agitator 34 is attached to the vehicle body so as to be vertically movable by a vertical movement mechanism. Drilling mixing agitator rotor 56
Of the bucket type excavator 25 is larger than the width of the bucket 33 of the bucket type excavating work machine 25.

[0008]

[Operation] The excavating and mixing agitator 34 can excavate the ground and mix and agitate the excavated earth and sand and the ground solidifying material.
The bucket type excavator 25 can be used for trench excavation, backfilling, excavation, loading, and ground leveling, so that a single civil engineering machine can be used to efficiently construct a building foundation.

[0009]

[Example] As shown in FIG. 1 and FIG.
Running bodies 21 are attached to the left and right of the lower body 2
The upper revolving structure 22 is attached to the upper part of 0 by a revolving mechanism 23 so as to be revolvable in the water surface direction to form a vehicle body. The upper revolving structure 22 is provided with a driver's cab 24 and a bucket excavator 25. Is provided.

The bucket type excavator 25 includes a first boom 27 which is vertically swingably connected to the upper swing body 22 by a first boom cylinder 26, and a second boom cylinder 28 at the tip of the first boom 27. A second boom 29 swingably connected to the left and right, an arm 31 vertically swingably connected to a swing bracket 29a provided on the second boom 29 by an arm cylinder 30, and a bucket cylinder 32 vertically moved to the arm 31. The bucket 33 is swingably connected.

An excavator / mixer agitator 34 is mounted between the left and right traveling bodies 21 of the lower vehicle body 20 so as to be vertically and horizontally movable. In other words, a pair of upper and lower lateral guide rods 37, 37 are laterally extended in parallel to each other between the left and right projecting pieces 36, 36 fixed to the vertical plate 35 fixed to the vehicle body 1. , 37, a mounting bracket 38 is provided so as to be slidable left and right, and a sliding cylinder 39 is connected across the mounting bracket 38 and the vertical plate 35 to form a lateral movement mechanism 40.

The mounting arm 38 is attached to the mounting bracket 38.
1 is swingably moved up and down by a pin 42, and a vertically swinging cylinder 43 is connected across the mounting arm 41 and a mounting bracket 38, and the tip of the mounting arm 41 is fixed to an upper lateral plate 44a of a housing 44. The bracket 45 is connected by the pin 46, and the pin 45 is connected to the bracket 45.
The connecting rod 48 connected by 7 and the storage cylinder 49 pivotally attached to the mounting arm 41 are connected by a pin 50.
A link 51 connected to the mounting arm 41 is connected to the mounting arm 41 by a pin to form a vertical movement mechanism 52 that moves in an arc shape in the vertical direction.

The housing 44, as shown in FIG.
The upper horizontal plate 44a and the vertical plates 44b on both sides form a gate-shaped frame having an opening on the lower side.
3 is rotatably supported horizontally, and a plurality of plates 54 are fixed to the rotating horizontal shaft 53 at intervals in the axial direction.
Bits 55 for drilling, mixing and stirring on each plate 54
Are fixed to each other at intervals in the circumferential direction to form an excavation mixing agitation rotor 56. The width of the excavation mixing agitation rotor 56 is larger than the width of the bucket 33, and between the outer portions of the left and right traveling bodies 21. It is smaller than the size.

A transmission case 57 is provided on the one vertical plate 44b.
And a drive motor 58 is attached to the upper end of the transmission case 57. The output shaft 58 of the drive motor 58 is
A chain 61 is wound around a drive sprocket 59 provided on a and a driven sprocket 60 provided on the rotary horizontal shaft 53, and when the drive motor 57 is driven, the rotary horizontal shaft 53 is rotated so that the excavator mixing stirrer 34 is formed. is there.

Next, the work of constructing the foundation on the building ground will be described. Disperse the ground solidification material on the building ground. This work may be performed manually by an operator, or a bag filled with the ground solidifying material may be suspended by the bucket 33 and sprayed while the traveling body 21 is traveling.

The vertical swing cylinder 43 is contracted to swing the mounting arm 41 downward, and the slide cylinder 3 is moved.
9 is extended and contracted to move the mounting bracket 38 left and right to position the excavation mixing and stirring rotor 56 at an intermediate portion between the left and right traveling bodies 21, and drive the drive motor 58 to rotate the excavation mixing and stirring rotor 56. Meanwhile, the mounting arm 41 is moved further downward to excavate the building construction ground, and the ground solidification material and the excavated earth and sand are mixed and stirred to obtain a homogeneous soil.

At this time, the vertical swing cylinder 43 is extended,
By contracting, the excavation mixing stirring rotor 56 swings up and down with respect to the mounting bracket 38, so that the depth of the homogeneous soil can be adjusted.

The vertical rocking cylinder 43 is extended to rock the excavation mixing and stirring rotor 56 upward, and the storage cylinder 43 is contracted and jumped upward to be stored in a position above the building ground, and the bucket 33 is used. The surface of the homogeneous soil is excavated flat, or the back surface of the bucket is used to compact the homogenized earth and sand into a flat surface, and then the soil is improved by curing to obtain hard ground with a flat surface.

Further, since the slide cylinder 39 is expanded / contracted and the excavation / mixing / agitating rotor 56 is moved to the left / right, the excavation / mixing / agitating rotor 56 can be projected to the outside of one of the left and right traveling bodies 21. Mixing and stirring up to near

Next, another embodiment of the bucket type excavator 25 will be described. (Second Embodiment) As shown in FIG. 5, a bracket 70 is connected to an upper swing body 22 so as to be swingable right and left by a vertical axis 71, and a swing cylinder (not shown) is provided between the bracket 70 and the upper swing body 22. No.), the boom 72 is vertically swingably connected to the bracket 70 by the boom cylinder 73, and the arm 31 is vertically swingably connected to the boom 72 by the arm cylinder 30. Are connected by a bucket cylinder 32 so as to be vertically swingable.

In this way, the bucket 72 is swung together with the bracket 70, and the upper swing body 23 is swung in the opposite direction to the bracket 70.
3 can be excavated by shifting left and right from the center between the left and right traveling bodies 21.

(Third Embodiment) The bracket 70 may be fixed to the upper swing body 22 as shown in FIG.

In FIG. 6, the boom cylinder 73
Supply pressure oil from the hydraulic pump to the expansion side and contraction side of the.

In this way, the expansion and contraction of the boom cylinder 73 allows the back surface 33a of the bucket 33 to compact the surface of the hardened ground.

Another Embodiment of the Drilling Mixing Agitator 34 (Second Embodiment) As shown in FIG. 7 and FIG.
The support frame 80 is fixed substantially horizontally to the support frame 80, and a mounting bracket 81 is connected to the support frame 80 by a pin 82 so as to be vertically swingable. The housing 44 is fixed to the mounting bracket 81, and a connecting rod 83 is attached. Vertical swing cylinder 85 connected by a pin 84 and connected to the lower vehicle body 20
Is connected to the connecting rod 83 by a pin 86, and a link 87 connected to the pin 86 is connected to a support frame 80 to form a vertically moving mechanism 88 that moves up and down in an arc shape.

In this way, the vertical swing cylinder 8
By extending 5, the excavating and mixing and stirring rotor 56 swings downward through the link 87 and the connecting rod 83, as shown in FIG.
By contracting the vertical rocking cylinder 85, the excavation mixing and stirring rotor 56 rocks upward as shown in FIG. 9, and the drilling mixing and stirring rotor 56 rocks largely up and down with a small extension and contraction stroke of the vertical rocking cylinder 85. it can.

(Third Embodiment) As shown in FIGS. 10 and 11, a guide frame 89 is attached to the mounting bracket 81, and a slide rod 91 is slidably fitted in a guide hole 90 of the guide frame 89. The vertical plates 92, which are inserted and fixed to both ends of the guide rod 91, are attached to the housing 4
4, and a slide cylinder 93 is connected to the vertical plate 92 and the guide frame 89 to connect the slide cylinder 93 to the horizontal movement mechanism 94.
There is.

In this way, the slide cylinder 9
By extending and contracting 3, the excavating and mixing and stirring rotor 56 can be moved left and right.

As shown in FIG. 12, a support frame 117 is fixed to the lower vehicle body 20, a fixed mast 118 is fixed to the support frame 117, and a movable mast 119 is moved up and down by a lifting cylinder 120 along the fixed mast 118. An up-and-down moving mechanism 121 which is freely provided and moves up and down linearly is provided. A bracket 122 is attached to the movable mast 119, and an excavation mixing agitator 34 is attached to the bracket 122.

In this way, the excavating and mixing agitator 34 can be moved vertically up and down, so that it can be efficiently moved up and down in a short time.

Each bucket type excavator 25 described above
The horizontal movement mechanism, the vertical movement mechanism, and the excavation mixing agitator 34 can be used in any combination.

Next, the second embodiment will be described with reference to FIGS. 13, 14 and 1.
5 and FIG. 16 will be described. An excavator / mixer 34 is attached to the rear of the upper revolving structure 23 that is rotatably provided on the lower vehicle body 20, and a hopper 125 is attached to the front. A pair of upper and lower horizontal guide rods 9 is provided between the left and right protruding pieces 96, 96 fixed to the vertical plate 95 fixed to the upper swing body 22.
7 and 97 are parallel to each other and are laid horizontally to the left and right, and a mounting bracket 98 is provided along the upper and lower horizontal guide rods 97 and 97.
Is provided so as to be slidable to the left and right, and a sliding cylinder 99 is connected across the mounting bracket 98 and the vertical plate 95 to form a lateral movement mechanism 100.

A boom 101 is attached to the mounting bracket 98.
Is connected by a pin 102 so that it can swing up and down.
01 and a mounting bracket 99, a cylinder 103 is connected, and an arm 104 is connected to a tip portion of the boom 101 by a pin 105 so as to be vertically swingable.
Is connected to a bracket 106 fixed to the upper horizontal plate 44a of the housing 44 by a pin 107.
4 to the upper horizontal plate 44a of the bracket
The connecting rod 110 connected by 09 and the rotor cylinder 111 pivotally mounted on the arm 104 are connected by a pin 112, and the link 113 connected by this pin 112 is connected by the pin 114 to the arm 104. 1
The arm cylinder 115 is connected over 04 to form a vertically moving mechanism 116 that vertically moves in an arc shape.

The housing 44 is a gate-shaped frame whose front and rear are opened by an upper horizontal plate 44a, both side vertical plates 44b and a lower horizontal plate 44c.

In this way, the excavation mixing and stirring rotor 56 can be largely swung up and down by vertically swinging the boom and arms 101 and 104 by the boom and arm cylinders 103 and 115. Since the function of the counterweight is fulfilled, the stability of the vehicle body when excavating with the bucket 33 is improved.

The hopper 125 is attached to the upper revolving structure 22 in the vicinity of the bracket 70 and has a lid 12 on the upper surface.
An inlet 127 that is opened and closed by 6 is provided, and a bag 129 in which the ground solidifying material is enclosed by a hook 128 fixed to the boom 72 is lifted to be above the hopper 125 as shown in FIG. 16, the lid 126 is removed, and the inside of the bag 129 is removed. Ground improvement material of entrance 1
It can be put into the hopper 125 from 27.

A powder supply mechanism 130 is provided at the bottom of the hopper 125 so that the ground solidifying material in the hopper 125 can be scattered on the bottom of the groove excavated from the supply pipe 131. The powder supply mechanism 130 may be a powder supply pump that uses a pump for pressure supply, or one that pressurizes the fluid with a fluid pressure cylinder for pressure supply.

Next, a third embodiment will be described with reference to FIG. A hopper 136 is attached to the lower vehicle body 20 via a pair of left and right brackets 135, an outlet 137 of the hopper 136 is located between the left and right traveling bodies 21, a discharge rotor 138 is provided, and the discharge rotor 138 is rotated. By doing so, the ground solidification material in the hopper 136 can be dropped onto the ground from between the left and right traveling bodies 21, and the ground solidification material can be sprayed on the bottom of the excavated groove.

The one vertical surface 136a of the hopper 136 is formed so as not to interfere even if the upper swing body 22 swings 360 degrees.
You can make a full 360-degree turn with raising.

Next, a fourth embodiment will be described with reference to FIG. The excavator / mixer 34 is attached to one of the front and rear 20a of the vehicle body so as to be vertically movable by the vertical movement mechanism 88, and the mounting bracket 139 is attached to the other front and rear 20b of the vehicle so as to be swingable left and right. The working machine 25 is mounted so as to be vertically swingable.

[0041]

The excavation mixing agitator 34 can excavate the ground and mix and agitate the excavated earth and sand and the ground solidifying material, and the bucket type excavator 25 can excavate the groove and backfill the soil. The building foundation can be efficiently constructed with, and other trench digging, backfilling work and excavation
Loading and leveling work can be done. It is not necessary to put crushed stones, crushed stones, etc. in the lower part of the foundation, and a small amount of solidifying material and soil are mixed and agitated to form the improved ground, so there is no need to carry out the earth and sand after backfilling, so construction costs can be reduced. Since the bucket type excavator 25 is attached to the upper revolving structure 22 and the excavation mixing agitator 34 is attached to the lower vehicle body 20, the vehicle body center of gravity position is downward so that the vehicle can travel stably, and the excavation mixing agitator 34 excavates and mixes. When the stirring work is performed, the upper revolving structure 22 is swiveled so that the operator can visually recognize the working portion, so that the working efficiency is improved. Since the bucket excavator 25 is attached to one side of the upper revolving structure 22 in the front-rear direction and the excavator / mixer agitator 34 is attached to the other side of the front-rear in the front-rear direction, when one works alone, the other functions as a counterweight. Can be fulfilled. When the bucket type excavator is pressed to the ground to float one side of the vehicle body, the excavation mixing agitator is pressed to the ground to float the other side and the whole body floats up. The undercarriage can be turned to, which can greatly improve the small turning ability in a narrow space.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a partially enlarged view of FIG. 2;

FIG. 4 is a cross-sectional view of a drill mixing mixer.

FIG. 5 is a front view showing a second embodiment of the bucket type excavating work machine.

FIG. 6 is a front view showing a third embodiment of the bucket type excavating work machine.

FIG. 7 is a front view showing a second embodiment of the excavation mixing stirrer.

8 is a partial plan view of FIG. 7. FIG.

FIG. 9 is an operation explanatory diagram.

FIG. 10 is a front view showing a third embodiment of the excavation mixing agitator.

FIG. 11 is a partial plan view of FIG.

FIG. 12 is a front view showing a fourth embodiment of the excavation mixing stirrer.

FIG. 13 is a front view showing a second embodiment of the present invention.

FIG. 14 is a plan view of FIG.

FIG. 15 is a side view of FIG.

FIG. 16 is a perspective view showing an operation of charging a ground solidifying material into a hopper.

FIG. 17 is a front view showing a third embodiment of the present invention.

FIG. 18 is a front view showing a fourth embodiment of the present invention.

[Explanation of symbols]

25 ... Bucket type excavator, 33 ... Bucket, 34 ...
Excavation mixing agitator, 40 ... Horizontal movement mechanism, 52 ... Vertical movement mechanism, 56 ... Excavation mixing agitation rotor.

Claims (4)

[Claims] 1. A bucket type excavating work machine 25 is attached to a vehicle body provided with a traveling body 21, and the excavating and mixing agitator 34 is attached to this vehicle body.
Is attached by a vertical movement mechanism so as to be vertically movable, and the width of the excavation mixing agitation rotor 56 of the excavation mixing agitator 34 is made larger than the width of the bucket 33 of the bucket type excavation work machine 25. 2. The civil engineering construction machine according to claim 1, wherein the excavation mixer 34 is attached to the vehicle body so as to be movable left and right and vertically by a horizontal movement mechanism and a vertical movement mechanism. 3. An upper revolving structure 22 is rotatably attached to a lower vehicle body 20 having a traveling structure 21 by a revolving mechanism 23 to form a vehicle body, and the bucket revolving work machine 2 is mounted on the upper revolving structure 22.
The civil engineering construction machine according to claim 1 or 2, wherein 5 is attached so as to be vertically swingable, a driver seat 24 is attached, and an excavation mixing agitator 34 is attached to the lower vehicle body 20 so as to be vertically movable by a vertical movement mechanism. 4. An upper revolving structure 22 is rotatably attached to a lower vehicle body 20 having a traveling structure 21 by a revolving mechanism 23 to form a vehicle body, and a bucket excavator 25 is provided on one side of the upper revolving structure 22 in the front-rear direction. 3. The civil engineering construction machine according to claim 1 or 2, wherein the vertical excavator is attached so as to be vertically swingable, and the excavation mixing agitator is attached to the other side of the upper revolving structure 22 in the front-rear direction by a vertical movement mechanism.