JPH1018342A - Derrick device of excavator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a derrick device which has compact configuration and can correspond to size of an excavator which is used in a flexible manner. SOLUTION: A derrick main body 18 is mounted on a cart 14 and consists of a base frame 24, a lifting frame 26, and a slide frame 28. The lifting frame 26 ascends and descends along the base frame 24 and the slide frame 28 slides horizontally along the lifting frame 26. Moreover, reels 38, 40 for power supply which wind up a cable or hydraulic hoses 42, 44 are arranged horizontally in the lifting frame 26, and a hose reel 50 which winds up a mud discharge hose 52 is arranged horizontally in the slide frame 28. Furthermore, head sheaves 62, 62 which support a wire rope which hoists down an excavator are provided in the slide frame 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turret apparatus of an excavator, and more particularly to an excavator for forming an underground continuous wall, a water stop wall, and the like in an underground space or a place with a limited free space such as a road. For turret equipment.

[0002]

2. Description of the Related Art Conventionally, there has been disclosed an turret apparatus of this type of excavator disclosed in Japanese Patent Application Laid-Open No. Hei 6-173266.
The turret device of this excavator has a power supply hose that supplies power such as hydraulic pressure to the excavator, a mud drain hose that discharges excavated earth and sand, and a vertical hose drum and a horizontal hose drum that are respectively provided on the turret body. And has a configuration for winding.

[0003]

However, since the conventional tower apparatus has a configuration in which the power supply hose is wound vertically by a vertical hose drum, the height of the tower is increased by the diameter of the vertical hose drum. However, there was a limit to the lowering of the head. In addition, since both the vertical hose drum and the horizontal hose drum are fixed to the tower body, there are restrictions on the size of the excavator that can be used.

[0004] The present invention has been made in view of such circumstances, and an object of the present invention is to provide an excavator that has a compact configuration and that can flexibly respond to the size of an excavator to be used. .

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an excavator turret which excavates underground by suspending an excavator equipped with a driving device so as to be able to move up and down. A trolley, a turret body provided on the trolley, and a hose reel that is disposed horizontally on the turret main body and winds up a sludge hose that discharges excavated earth and sand excavated by the excavator,
A power supply reel that is disposed horizontally on the tower body and winds a cable or a hydraulic hose that supplies power to the excavator, and a head sheave that is provided on the tower body and supports a wire rope that suspends the excavator. , Is provided.

According to the present invention, the turret of the excavator is made as low as possible by arranging the hose lease for winding the sludge hose and the power supply reel for winding the cable or the hydraulic hose horizontally on the turret body. Can be

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a turret apparatus of an excavator according to the present invention. FIG. 1 is a front view of an embodiment of an excavator according to the present invention, and FIGS. 2 and 3 are a side view and a plan view of FIG. 1, respectively.

[0008] As shown in FIGS.
Has an endless track 12, and a bogie 14 is installed on the endless track 12 so as to be pivotable. The carriage 14 is provided with outrigger jacks 16, 16, and the endless track 12 moves to an arbitrary position and is installed at a desired position by the outrigger jacks 16, 16. Note that, instead of the endless track 12, rail traveling with wheels may be used.

On the carriage 14, a tower main body 18, an operation room 20, a hydraulic unit 22, an inclinometer reel 23 and the like are mounted. In FIG. 2, an excavator 66 (two-dot chain line) is suspended and installed on the excavation slot 80. The tower main body 18 includes a base frame 24, a lifting frame 26, and a slide frame 28.

The base frame 24 is formed in a rectangular shape, and stands substantially at the center of the carriage 14. The lifting frame 26 is connected to the base frame 24.
Slidably supported by the base frame 24
Are moved up and down using the four columns 24A, 24A,... Hydraulic cylinders 30, 30,... Are disposed at four corners of the lifting frame 26.
The cylinder rod 30 of the hydraulic cylinders 30, 30,...
A, 30A, ... extend vertically downward. The distal ends of the cylinder rods 30A, 30A,... Are fixed to the carriage 14, and therefore, by extending the cylinder rods 30A, 30A,.

FIG. 4 shows a state in which the lifting frame 26 is raised. As shown in the figure, four pillars 24A, 24A,... Of the base frame 24 on which the elevating frame 26 slides are provided with pin holes 32, 32,. Elevating frame 2
6 are also provided with pin holes 34 having the same diameter. The lifting frame 26 raised by the driving of the hydraulic cylinders 30, 30,... Is provided with pin holes 34, 34,.
The pins are inserted into the pin holes 32, 32,.

On the upper part of the elevating frame 26, a horizontally arranged support frame 36 is formed integrally with the elevating frame 26. Power supply reels 38 and 40 are rotatably supported by the support frame 36. The power supply reels 38 and 40 are wound with cables or hydraulic hoses 42 and 44 for supplying power to an excavator 66 described later, respectively. Hydraulic motors (not shown) are connected to the power supply reels 38 and 40, respectively. The power supply reels 38 and 40 are rotated by driving the hydraulic motors, and the cables or the hydraulic hoses are rotated. Feeding out or winding up of 42 and 44 is performed.

As shown in FIG. 1, the lifting frame 26
A pair of guide rails 46, 46 are laid on the upper end portion of the guide rail in a direction perpendicular to the front surface. The slide frame 28 is slidably supported by the pair of guide rails 46,46. As shown in FIG. 2, a pair of hydraulic cylinders 48, 48 are disposed along the pair of guide rails 46, 46 on the upper part of the elevating frame 26. The distal ends of the cylinder rods 48A, 48A are fixed to the slide frame 28, and the slide frame 28 is connected to the hydraulic cylinders 48, 48A.
Is driven, the slider slides along the guide rails 46, 46 (see FIG. 6).

A hose reel 50 is rotatably supported on the slide frame 28. A sludge hose 52 connected to a sludge pump 72 of an excavator 66 described later is wound around the hose reel 50. A hydraulic motor (not shown) is connected to the hose reel 50. The hose reel 50 is rotated by driving the hydraulic motor, and the hose reel 50 is fed or wound up. I do.

At the tip of the slide frame 28,
As shown in FIGS. 1 and 3, a guide portion 54 for guiding the cables or the hydraulic hoses 42 and 44 and the sludge hose 52 to an excavator 66 is formed. The guide portion 54 includes guide rollers 56, 5 for guiding the cables or the hydraulic hoses 42, 44 to the excavator 66.
6 and a guide roller 58 for guiding the exhaust hose 52 to an excavator 66 are rotatably supported.

A wire rope 60 (see FIG. 7) for suspending the excavator 66 is provided on the guide portion 54.
Are rotatably supported. The wire rope 60 for suspending the excavator 66 is wound around a hoist (not shown) installed on the carriage 14, and by driving the hoist,
The feeding and winding of the wire rope 60 are performed.

In FIG. 2, reference numeral 64 denotes a guide tube for guiding the cable or the hydraulic hose 42 wound around the power supply reel 38 to the guide roller 56. , And is guided by the guide roller 56 through the guide tube 64.
The excavator 66 is suspended from a wire rope 60 guided by the pair of sheaves 62, 62, as shown in FIG. The excavator 66 has cutter drums 70, 7 having a large number of teeth 68, 68,.
The excavator 66 excavates a hole in the ground by rotating the cutter drums 70, 70. The excavated excavated earth and sand is discharged from the expulsion hose 52 by an exhaust pump 72 provided in the excavator 66.
And the power source of this mud pump 72 is supplied via one cable or the hydraulic hose 42. The cutter drums 70, 70 are driven by a motor (not shown), and the power source of the motor is supplied via the other cable or the hydraulic hose 44.

Here, when a cable is used for power supply, the excavator 66 is provided with an electric motor, and when a hydraulic hose is used, a hydraulic motor is provided. The operation of the embodiment of the excavator according to the present invention configured as described above is as follows.

First, the low head turret device 10 is run using the endless track 12, and the low head turret device 10 is moved to a predetermined excavation position. Then, using the outriggers 16, 16, the low head turret device 10 is fixed at that position. Next, the cutter drums 70 of the excavator 66 are driven to rotate, and the earth and sand are excavated by the teeth 68, 68,.
Then, excavation is performed while discharging the excavated soil from the drainage hose 52 by the drainage pump 72. As the excavation proceeds, the wire rope 60 is wound from a hoist (not shown), and the mud drain hose 52 and cables or hydraulic hoses 42, 44 are fed from the hose reel 50 and the power supply reels 38, 40.
The excavator 66 is lowered into the ground while loosening.

After drilling a hole to a predetermined depth, the cable or hydraulic hoses 42 and 44 and the sludge hose 5 are extended in accordance with the winding of the wire rope 60 by the hoist.
2 is wound by the power supply reels 38 and 40 and the hose reel 50, respectively, and the excavator 66 is pulled up from the hole. At this time, the cable or the hydraulic hose 42, 4
4 and the sludge hose 52 are wound horizontally by the power supply reels 38 and 40 and the hose reel 50 which are horizontally arranged, respectively.

As described above, according to the excavator of the present embodiment, the hose lease 50 for winding the sludge hose 52 and the power supply reels 38 and 40 for winding the cables or the hydraulic hoses 42 and 44 are horizontally moved. By arranging the turret, the tower can be made as low as possible. As a result, the excavation work can be performed in a narrower space than the conventional turret apparatus of the excavator.

Further, according to the excavator of the present embodiment, the guide portion 54 for guiding the sludge hose 52, the cable or the hydraulic hoses 42, 44, etc. to the excavator 66 can move up and down and move forward and backward. Since it is formed, it can be applied to excavators of various sizes. That is, the type of excavator to be used differs depending on the diameter and type of the drilled hole, and when excavating a drilled hole having a large diameter, the excavator also becomes large. At this time, according to the low head turret device 10 of the present embodiment, the height of the guide portion 54 can be adjusted by moving the elevating frame 26 up and down. Can respond to In addition, by moving the slide frame 28 forward and backward, the horizontal position of the guide portion 54 can be adjusted, so that the suspension position of the head sheave 62 can be adjusted, thereby corresponding to the width of the excavator to be used. Can be.

[0023]

As described above, according to the present invention,
By arranging the hose lease for winding the sludge hose and the power supply reel for winding the cable or hydraulic hose horizontally on the tower body, the tower of the excavator can be made as low as possible.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of an turret apparatus of an excavator according to the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a front view showing a rising state of the lifting frame.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a side view showing a sliding state of the slide frame.

FIG. 7 is an explanatory view for explaining a use situation of the turret device of the excavator according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Low head tower apparatus 12 ... Endless track 14 ... Truck 18 ... Tower body 24 ... Base frame 26 ... Elevating frame 28 ... Slide frame 38, 40 ... Power supply reel 42, 44 ... Cable or hydraulic hose 50 ... Hose reel 52 ... Sludge hose 60 ... Wire rope 62 ... Sheave 66 ... Excavator 72 ... Sludge pump 80 ... Drilling slot

Claims (3)

[Claims] 1. A turret apparatus for an excavator that excavates underground by suspending an excavator equipped with a driving device so as to be able to move up and down, comprising: a movable bogie; a main body provided on the bogie; A hose reel that is disposed horizontally on the main body and winds a sludge hose that discharges excavated earth and sand excavated by the excavator, and a cable or a hydraulic pressure that is horizontally disposed on the turret main body and supplies power to the excavator. An turret device for an excavator, comprising: a power supply reel for winding a hose; and a head sheave provided on the turret body and supporting a wire rope for suspending the excavator. 2. The turret apparatus of an excavator according to claim 1, wherein the turret body is movable up and down with respect to the bogie. 3. The turret apparatus of an excavator according to claim 1, wherein said head sheave and said hose reel are supported so as to be able to move forward and backward in a horizontal direction.