JPH10317422A - Method for connecting vertical shaft in multi-shaft excavating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and rapidly connect groups of vertical shafts to vertically form a multi- stage, by axially projecting higher the square hole parts at both sides than the central square hole part in three rows of square hole parts provided at the upper or lower end of the three rows of vertical shafts in the vertical shaft group, or axially projecting higher the square cylindrical parts at both sides than the square cylindrical part at the central part in three rows of square cylindrical parts. SOLUTION: Square hole parts 6 at both sides are axially higher projected than the square hole part at the central part in three rows of square hole parts 6 formed at the upper end or the lower end of three rows of vertical shafts 2 of a vertical shaft group 3 or the square cylindrical parts 5 at both sides are axially higher projected than the square cylindical part 5 at the central part in three rows of square cylindrical parts 5. And hence, the connecting work of respective cylindrical parts and respective holes provided at respective lower ends of three rows of vertical shafts of the vertical shaft group of the upper stage and respective upper ends of three rows of vertical shafts of the vertical shaft groop additionally connected, can be easily and rapidly carried out. And also the connection work of the square cylindrical parts and the square hole parts provided at respective lower ends of three rows of vertical shafts of the vertical shaft group for additional connection and the respective upper ends of three rows of vertical shafts of the vertical shaft group of the lower stage can be easily and rapidly carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for connecting a plurality of vertical axes vertically in a multi-shaft excavator when excavating deeper than a vertical length of a leader.

[0002]

2. Description of the Related Art Conventionally, a ground is excavated by a multi-shaft excavator. This multi-axis excavator is equipped with a heavy machine equipped with a leader, and equipped with a multi-axis rotating device so that the leader can move up and down. The ground is excavated by connecting one or more vertical axis groups to the upper vertical axis group and connecting the vertical axis group to the upper vertical axis group within a range of the vertical length of the reader.

[0003] In connecting the vertical axis groups vertically in the vertical direction within the range of the vertical length of the reader, for example, the upper vertical axis is connected one by one to the output shaft of the multi-axis rotating device. After the three vertical axes are arranged side by side and connected to the output shaft of the multi-shaft rotating device, the three vertical axes arranged side by side are rotatably connected at predetermined intervals by a horizontal connecting member to form the upper stage. A vertical axis group is formed, and then the upper ends of the three lower vertical axes are connected one by one to the lower ends of the respective vertical axes of the upper vertical axis group, and then the lower three horizontal rows are connected. The vertical axes of the books are rotatably connected at predetermined intervals by a horizontal connecting member to form a lower vertical axis group. In this way, by connecting the vertical axis one by one in the vertical direction, the square tube provided at the lower end of the vertical axis is easily fitted into the square hole provided at the upper end of the vertical axis and connected. It is possible to do. Here, the upper and lower ordinates can be integrally rotated by fitting the lower end of the upper vertical axis into the square tube at the lower end of the lower ordinate.

By simply connecting the vertical axis group in the vertical direction within the range of the vertical length of the reader as described above, only a hole having a depth equal to or less than the vertical length of the reader can be formed. Therefore, in order to drill a hole having a depth equal to or greater than the vertical length of the leader, it is necessary to further extend the additional vertical axis group. In order to connect the vertical axis group for replenishment, the vertical axis group connected in the upper and lower stages is longer than the leader, and the vertical axis group for replenishment cannot be connected and lifted on the ground. For this reason, conventionally, the extension vertical axis groups are connected by a method as shown in FIGS.

That is, the three longitudinal axes 2 are connected in advance at predetermined intervals by the horizontal connecting member 1 to form a longitudinal axis group 3c for extension, which is hung by a crane or the like to form a hole 30 formed in advance. 2 and supported by the temporary support means 17. On the other hand, in the state where the longitudinal axis group 3 is connected in a plurality of stages up and down as described above, connected to the multi-axial rotating device 8 and suspended, the multi-axial rotating device 8 is rotated along the reader 4 while rotating. By lowering, the ground is excavated as shown in FIG. 3, and at least the vertical group 3 excluding the upper vertical group 3 a is inserted into the ground, and the lower vertical group 3 b inserted into the ground is inserted into the ground. , And temporarily supported by the temporary supporting means, and then inserted into the ground and temporarily supported, and the lower vertical group 3b suspended on the multi-axis rotating device 8 located above the ground. Are separated as shown in FIG. Next, as shown in FIG. 5, the upper vertical axis group 3a suspended on the multi-axis rotating device is positioned above the extension vertical axis group 3c, and the three vertical axes 2 of the upper vertical axis group 3a are The lower ends are connected to the upper ends of three longitudinal axes 2 of the extending longitudinal group 3c. Next, as shown in FIG.
The multi-axis rotating device 8 is moved upward to raise the upper longitudinal axis group 3a together with the extension vertical axis group 3c connected thereto to the ground, and the lower end of the extension vertical axis group 3c is grounded as shown in FIG. The lower end of the three longitudinal axes 2 of the extending longitudinal group 3c is moved to the lower longitudinal axis group 3b which is temporarily supported and inserted into the lower longitudinal axis group 3b. As shown in FIG. 8, excavation deeper than the vertical length of the leader 4 is performed by the vertical group 3 connected to the upper end of the vertical axis 2 and connected in multiple stages including the vertical group 3c for extension.

However, the work of connecting the lower ends of the three longitudinal axes 2 of the upper longitudinal group 3a to the upper ends of the three longitudinal axes 2 of the extending longitudinal group 3c, respectively, and the extending longitudinal axes In connecting the lower ends of the three longitudinal axes 2 of the group 3c to the upper ends of the three longitudinal axes 2 of the lower longitudinal group 3b, respectively, as shown in FIG. A rectangular tube portion 5 is provided at the upper end of the vertical axis 2, and a square hole portion 6 into which the rectangular tube portion 5 is fitted is provided, and the upper and lower vertical axes 2 are connected by fitting the rectangular tube portion 5 and the square hole portion 6. When connecting the lower ends of the three longitudinal axes 2 of the upper longitudinal group 3a to the upper ends of the three longitudinal axes 2 of the extending longitudinal group 3c, respectively, 3
The positions of the three vertical axes 2 of the three vertical axes 2 in the rotation direction are different, and the three vertical cylinders 5 of the three vertical axes 2a of the upper vertical axis group 3a are different.
, Respectively, so that the lower ends of the three longitudinal axes 2 of the upper longitudinal group 3a are respectively added to the upper ends of the three longitudinal axes 2 of the extending longitudinal group 3c. In connecting to each other, each of the longitudinal axes 2 of the extending longitudinal group 3c is manually rotated, and the positions of the three longitudinal axes 2 in the rotational direction of each of the rectangular tube portions 5 and the three longitudinal axes It is necessary to match each square hole 6 with the position in the rotation direction, and it takes time and effort to perform the operation. In addition, the lower end portions of the three vertical axes 2 of the vertical axis group 3c for extension are arranged in the lower row, respectively. When connected to the upper ends of the three vertical axes 2 of the vertical axis group 3b, the positions of the three vertical axes 2 of the lower vertical axis group 3b in the rotational direction of the respective square holes 6 are different, and The three vertical axes 2 of the vertical axis group 3c do not correspond to the positions in the rotation direction of the respective rectangular cylinder portions 6 of the three vertical axes 2; In connecting the lower ends of the vertical axes 2 of the books to the upper ends of the three vertical axes 2 of the lower vertical groups 3b, each of the vertical axes 2 of the lower vertical group 3b is manually operated. It is necessary to rotate and align the positions of the three vertical axis 2 in the rotational direction of the respective rectangular cylinder portions 5 with the positions of the three vertical hole 2 in the rotational direction of the respective rectangular hole portions 6. There was a problem that it took time.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to provide a simple and reliable method in a short period of time. Can be connected to the upper ends of the three vertical axes of the extending vertical group, and the lower ends of the three vertical axes of the extending vertical group can be respectively connected to the lower vertical group of the three vertical axes. An object of the present invention is to provide a method of connecting a vertical axis in a multi-axis excavator that can be connected to an upper end of a vertical axis of a book.

[0008]

In order to solve the above-mentioned problems, a method of connecting a vertical axis in a multi-spindle excavator according to the present invention is a method of connecting three vertical axes 2 at a fixed interval by a horizontal connecting member 1 in a row. The vertical axis group 3 connected to the vertical axis 2 is fitted in the vertical direction within a range shorter than the reader 4 in the vertical direction. And the upper end of each of the vertical axes 2 of the upper vertical axis group 3 is connected to the multi-axis rotating device 8 which can move up and down along the reader 4 provided on the heavy equipment 7, and The vertical axis group 3 connected in multiple stages is lifted along the reader 4, and the vertical axis group 3 excluding at least the upper vertical axis group 3a is inserted into the ground, and the lower vertical axis group 3b inserted into the ground is inserted into the ground. After being supported by the temporary support means 17, it is inserted into the ground and temporarily supported, and the lower vertical axis group 3b and the multi-axis rotating device positioned above the ground 8 is separated from the upper vertical axis group 3a, while the vertical axis group 3c for extension, in which three vertical axes 2 are connected in a row in the horizontal direction at a predetermined interval by the horizontal connecting member 1, is added in advance. It is inserted into the formed hole and is supported by the temporary support means 17, and furthermore, from the upper end of the three vertical axes 2 of the vertical axis group 3c for the extension to the vertical axis 2 of the three vertical axes 3a of the upper row. Of the three rows of square holes 6 provided at the lower end, the square holes 6 on both sides are made to protrude more in the axial direction than the square holes 6 in the center, or
The square tube portions 5 on both sides of the square tube portions 5 in the row are made to protrude in the axial direction from the center tube portion 5, and the multi-axis rotating device 8 is used.
Vertical axis group 3c for replenishing the upper vertical axis group 3a suspended at
, And the upper three longitudinal axes 2 are respectively opposed to the three longitudinal axes 2 of the extending longitudinal group 3c with a small gap therebetween. Is rotated by a multi-axis rotating device 8 to form a rectangular tube portion 5 and a rectangular hole portion 6 provided on the longitudinal axis 2 located on one side of the upper stage and the longitudinal axis 2 on one of the longitudinal axes 2 of the extension longitudinal group 3c. In this state, the upper vertical axis group 3
a is slightly fitted so that one side of the above-mentioned alignment is downward, and the square tube portion 5 and the square hole 6 located on one side are slightly fitted, and then the upper vertical The shaft 2 is rotated by the multi-axis rotating device 8, and the vertical axis 2 located on the other side of the upper stage and the square tube section 5 and the square hole 6 provided on the other vertical axis 2 of the extension vertical group 3 c are respectively provided. In this state, the upper longitudinal axis group 3a is tilted in the opposite direction to the other side while the square tube portion 5 and the square hole portion 6 located on the one side are slightly fitted to each other. The square tube part 5 and the square hole part 6 located in the upper part are slightly fitted, and then the upper vertical axis 2 is rotated by the multi-axis rotating device 8 to add the vertical axis 2 located in the upper central part. Vertical axis group 3
square tube portions 5 respectively provided on the vertical axis 2 located at the center of c
The upper longitudinal axis group 3a is moved downward in this state, so that the square tube portions 5 and the square hole portions 6 on both sides and the center are deeply fitted, and thereafter the coupling means is provided. To hold the fitted state of the square tube portion 5 and the square hole portion 6, and then pull up the upper vertical axis group 3 a along the reader 4 to add the vertical axis for extension connected to the upper vertical axis group 3 a. The group 3c is lifted to the ground, and in this state, three rows of three rows provided at the lower end of the three rows of the vertical axes 2 of the vertical axis group for addition 3c to the upper ends of the three rows of the vertical axes 3b of the lower vertical axis group 3b. The square hole portions 6 on both sides of the square hole portion 6 are made to protrude in the axial direction more than the square hole portions 6 in the central portion, or the square cylindrical portions 5 on both sides of the three rows of square cylindrical portions 5 are connected to the central portion. Square tube part 5
And the extension vertical axis group 3
c is inserted above the ground, and is positioned above the lower vertical axis group 3b in a state of temporarily supporting the lower vertical axis group 3b of the lower vertical axis group 3b. The three longitudinal axes 2 are opposed to each other with a small gap therebetween, and then the longitudinal axes 2 of the extending longitudinal groups 3c are rotated by the multi-axis rotating device 8 to extend one of the extending longitudinal groups 3c. The square tube portion 5 and the square hole portion 6 provided on the longitudinal axis 2 located on the side and one longitudinal axis 2 of the lower longitudinal axis group 3b are combined, and in this state, the extending longitudinal axis group 3c is added.
Is slightly fitted such that one side of the above-mentioned alignment is on the lower side, and the square tube portion 5 and the square hole 6 located on one side are slightly fitted to each other. The longitudinal axis 2 of the group 3c is rotated by the multi-axis rotating device 8, and the longitudinal axis 2 located on the other side of the extending longitudinal group 3c and the lower longitudinal axis group 3b
The square tube portion 5 and the square hole portion 6 respectively provided on the other longitudinal axis 2 are aligned, and in this state, the square tube portion 5 and the square hole portion 6 located on the one side are slightly fitted. The supplementary longitudinal group 3c is tilted in the opposite direction to the above to slightly fit the square tube portion 5 and the square hole portion 6 located on the other side, and then the longitudinal portion of the supplementary longitudinal group 3c Square shaft portions provided on the vertical axis 2 located at the center of the vertical axis group 3c for extension by rotating the shaft 2 by the multi-axis rotating device 8 and the vertical axis 2 located at the central area of the vertical axis group 3b at the lower stage. 5 and the square hole 6, and in this state, the vertical axis group 3c for extension is moved downward to fit the square cylindrical portions 5 and the square hole 6 on both sides and the center deeply, and then joined. The square tube part 5 and the square hole part 6 are fitted by means. By adopting such a method, each of the upper ordinates 2 is added to each of the upper ordinates 2c while the upper ordinate group 3a is rotated by the multi-axis rotating device 8, respectively. The shaft 2 can be connected to the square tube portion 5 and the square hole portion 6 while performing positioning in the rotation direction. The extension vertical group 3 c is rotated by the multi-axis rotating device 8 while the extension vertical group 3 c is rotated. Each of them can be connected to each of the longitudinal axes 2 of the lower longitudinal axis group 3b while positioning the rectangular cylinder portion 5 and the rectangular hole portion 6 in the rotational direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. The heavy equipment 7 is provided with running means such as a caterpillar, and the heavy equipment 7 is provided with a reader 4. The reader 4 is provided with a multi-axis rotating device 8 so as to be vertically movable. In the figure, reference numeral 3 denotes a vertical axis group in which three vertical axes 2 are connected in a row in the horizontal direction at a predetermined interval by a horizontal connecting member 1, and the vertical axis group 3 is vertically shorter than the reader 4 in length. The vertical axes 2 are connected in multiple stages within the range, and the upper ends of the vertical axes 2 of the upper vertical group 3 are connected to three output shafts provided in the multi-axis rotating device 8.

Here, the vertical axis 2 has a rectangular tube portion 5 such as a hexagon at the lower end and a square hole 6 into which the rectangular tube 5 such as a hexagonal hole can be fitted at the upper end. It is provided. Further, a pin insertion hole 11 is provided at the end of the longitudinal axis 2 where the square hole 6 is provided, and a pin fitting groove 12 is further provided at the outer surface of the square tube 5, The pin 13 inserted from the pin insertion hole 11 can be fitted into the pin fitting groove 12 with the 5 and the square hole 6 fitted.

As described above, the vertical axis group 3 is connected in multiple stages within a length shorter than the reader 4 in the vertical direction, and the upper end of each vertical axis 2 of the upper vertical axis group 3 is connected. Is connected to the three output shafts 10 provided in the multi-axis rotating device 8 as follows. That is, the upper ordinate 2 is connected one by one to the output shaft 10 of the multi-shaft rotating device 8, and the three ordinates 2 are connected to the three output shafts 10 of the multi-shaft rotating device 8, respectively. The upper longitudinal axis group 3a is formed by rotatably connecting the three longitudinal axes 2 arranged side by side by a horizontal connecting member 1 at a fixed interval. Next, the upper ends of the three lower ordinates 2 are connected one by one to the lower ends of the respective ordinates 2 of the upper ordinate group 3a, and then the lower three ordinates are arranged side by side. 2 are connected by a horizontal connecting member 1 so as to be rotatable at predetermined intervals, thereby forming a lower vertical axis group 3b. In this way, by adopting the method of connecting the vertical axes 2 one by one in the vertical direction on the ground, the square shaft 6 provided at the upper end of the vertical axis 2 is formed into a rectangular cylindrical output shaft 10 or a rectangular cylindrical part. 5 and can be easily connected. Fitting of the square hole 6 and the output shaft 10, square hole 6
The pin 13 which constitutes the coupling means is fitted in a state where the fitting is performed between the vertical axis 2 and the rectangular tube portion 5 so that the vertical axes 2 do not come out vertically.

Here, a bit 14 is provided at the lower end of the vertical axis 2 of the lowermost vertical axis group 3b. The vertical axis 2 may be provided with a stirring means 15 if necessary. As described above, the vertical axis group 3 is connected to the vertical axis group 2 in multiple stages within a length shorter than the reader 4 in the vertical direction, and the upper end of each vertical axis group 2 of the upper vertical axis group 3 is It is connected to three output shafts provided on the multi-axis rotating device 8. In the embodiment shown in the accompanying drawings, the upper vertical axis group 3a and the lower vertical axis group 3b
The upper end of the vertical axis 2 of the upper vertical axis group 3a is connected to three output shafts 10 of the multi-axis rotating device 8, respectively.

On the other hand, apart from the above work,
The vertical axes 2 are connected laterally by the horizontal connecting member 1 to assemble a vertical axis group 3c for replenishment (3 for the horizontal connecting member 1).
The vertical axis 2 of the book is rotatably connected), suspended by a crane or the like, inserted into a hole 30 formed in the ground 16 in advance, and temporarily suspended in a vertical posture. It is supported by the support means 17.

The point at which the above steps are completed is the step shown in FIG. Then, as shown in FIG. 3, the ground 16 is excavated by lowering the multi-axis rotating device 8 along the leader 4 while rotating the multi-axis rotating device 8 at the place where the excavation is to be performed as normal, and the lower vertical axis group 3 b is placed in the ground. insert. In this case, the excavation may be performed while spraying cement milk or other liquid material from the tip of the lowermost longitudinal axis 2 as needed. As above,
After the lower vertical axis group 3b is inserted into the ground,
As a result, the lower vertical axis group 3b inserted into the ground is temporarily supported while maintaining the vertical posture. Thereafter, the pin 13 is removed to disconnect the three vertical axes 2 of the lower vertical axis group 3b from the three vertical axes 2 of the upper level (see FIG. 4). In this manner, the lower vertical axis group 3b and the upper vertical axis group 3a separated from the upper vertical axis group 3a are moved by operating the heavy equipment 7, and are inserted into the holes 30 described above, and are temporarily suspended in a vertical posture. 17 is located immediately above the longitudinal axis group 3c for extension supported by the extension.

Here, in the present invention, the three rows provided at the upper end of the three rows of the vertical axes 2 of the extension vertical axis group 3c to the lower ends of the three rows of the vertical axes 2a of the upper vertical axis group 3a. Of the square hole portions 6 on either side of the square hole portion 6 in the axial direction than the square hole portion 6 on the center portion, or the square tube portions 5 on both side portions of the square tube portions 5 in the three rows are centered. Is made to protrude more in the axial direction than the rectangular tube part 5 of the part. In the embodiment shown in the accompanying drawings, a rectangular cylinder portion 5 is provided at the lower end of each of the three vertical axes 2 of the upper vertical axis group 3a. The protruding lengths in the directions are the same, but square holes 6 are provided at the upper ends of the three longitudinal axes 2 of the extending longitudinal group 3c, and corners on both sides of the square holes 6 are provided. The upper end of the hole 6 is a square hole 6 at the center.
Axially protruding from the upper end of the
(In (c), the dimension t is about 2-3 cm.)

The upper vertical axis group 3a suspended from the multi-axis rotating device 8 as described above is positioned above the extension vertical axis group 3c, as shown in FIGS. 9 and 10 (a). After the upper three vertical axes 2 are respectively added to each other and directly above the three vertical axes 2 of the additional vertical axis group 3c via a small gap, FIG.
12 (a), the upper vertical axis 2 is rotated by the multi-axis rotating device 8, and as shown in FIGS. 12 (b) and 12 (c), the upper vertical axis 2 is located on one side of the upper row. Vertical axis group 3c for extension
The square tube portion 5 and the square hole portion 6 respectively provided on one of the vertical axes 2 are aligned, and in this state, as shown by arrows in FIGS. While slightly tilting such that one side of the side is downward, the square tube portion 5 and the square hole portion 6 located on one side are slightly fitted.

Next, as shown by the arrows in FIGS. 15 and 16 (a), the upper vertical axis 2 is rotated by the multi-axis rotating device 8 and added to the vertical axis 2 located on the other side of the upper horizontal axis. Vertical axis group 3c
The square tube portion 5 and the square hole portion 6 respectively provided on the other longitudinal axis 2 are aligned as shown in FIGS. 16B and 16C, and in this state, the square tube portion 5 located on the one side and As shown by arrows in FIGS. 17 and 18, while the square hole portion 6 is slightly fitted, the upper vertical axis group 3a is inclined in the opposite direction to the above, and the square tube portion 5 located on the other side portion is tilted. And the square hole 6 are slightly fitted. Next, as shown by the arrows in FIGS. 19 and 20, the upper vertical axis 2 is rotated by the multi-axis rotating device 8 so that the vertical axis 2 located at the central part of the upper level and the central part of the vertical axis group 3c for replenishment are aligned. FIGS. 20 (b) and 20 (c) show the square tube portion 5 and the square hole portion 6 provided on the vertical axis 2 located respectively.
21. In this state, the upper vertical axis group 3a is moved downward, and as shown in FIG. 21 and FIG. After the fitting, the fitting state of the square tube portion 5 and the square hole portion 6 is maintained by the connecting means. Thereafter, the pins 13 are inserted and connected so that the upper and lower vertical axes 2 do not come off in the vertical direction (this is the state of FIG. 5).

Next, the temporary support of the extension vertical axis group 3c by the temporary support means 17 is released, and then the multi-axis rotating device 8 is moved up along the reader 4, so that as shown in FIG. Vertical axis group 3c for extension connected to the vertical axis group 3a of FIG.
Is lifted to the ground, and the extending vertical group 3c is moved above the lower vertical group 3b in a state of being temporarily supported by being inserted into the ground as shown in FIG.

In the present invention, the three rows provided at the lower end of the three vertical axes 2 of the vertical axis group 3c for addition and the upper end of the three vertical axes 2 of the lower vertical axis group 3b are provided. Of the square hole portions 6 on either side of the square hole portion 6 in the axial direction than the square hole portion 6 on the center portion, or the square tube portions 5 on both side portions of the square tube portions 5 in the three rows are centered. Is made to protrude more in the axial direction than the rectangular tube part 5 of the part. In the embodiment shown in the accompanying drawings, a rectangular cylinder portion 5 is provided at the lower end of each of the three longitudinal axes 2 of the extension longitudinal group 3c, and the position of the lower end of the rectangular cylindrical portion 5 (that is, the shaft). Direction, the same length, but square holes 6 are provided at the upper ends of the three vertical axes 2 of the lower vertical axis group 3b. The upper end of the hole 6 is a square hole 6 at the center.
Axially protruding from the upper end of the
(In (b), the dimension t is about 2-3 cm.)

The extension vertical group 3c suspended from the multi-axis rotating device 8 as described above is positioned above the lower vertical group 3b, as shown in FIGS. 9 and 10 (a). After the three longitudinal axes 2 of the extending longitudinal group 3c are opposed to the three longitudinal axes 2 of the lower longitudinal group 3b with a small gap therebetween, FIG. 11 and FIG. As shown by the arrow in FIG. 1, the vertical axis 2 of the vertical axis group 3c for extension is rotated by the multi-axis
As shown in FIGS. 2 (b) and 2 (c), the square tube portions 5 provided on one side of the vertical axis group 3c for extension and the one vertical axis 2 of the vertical axis group 3b on the lower side, respectively. Align with square hole 6,
In this state, as shown by the arrows in FIGS. 13 and 14 (a), the extension vertical axis group 3c is positioned on one side while slightly tilting so that one side of the aligned side is downward. The square tube part 5 and the square hole part 6 are slightly fitted.

Next, as shown by arrows in FIGS. 15 and 16 (a), the longitudinal axis 2 of the extending longitudinal group 3c is rotated by the multi-axis rotating device 8, and the other side of the extending longitudinal group 3c is rotated. The square tube portion 5 and the square hole portion 6 provided on the other vertical axis 2 of the lower vertical axis group 3b and the vertical axis 2 located in the lower portion are aligned as shown in FIGS. 17 and FIG. 1 with the square tube portion 5 and the square hole portion 6 located at the one side portion being slightly fitted.
As shown by the arrow 8, the extension vertical group 3 c is inclined in the opposite direction to the above, and the square tube portion 5 and the square hole portion 6 located on the other side are slightly fitted. Next, as shown by arrows in FIGS. 19 and 20, the vertical axis 2 of the vertical axis group 3c for replenishment is rotated by the multi-axis rotating device 8, and the vertical axis group 2 located at the center of the upper row and the vertical axis group of the lower row are added. The square tube portion 5 and the square hole portion 6 provided on the vertical axis 2 located at the center of 3b are aligned with each other as shown in FIGS. 20 (b) and 20 (c), and in this state, the extending vertical axis group 3c is lowered. As shown in FIGS. 21 and 22 (a), the square tube portion 5 and the square hole portion 6 on both sides and the center portion are deeply fitted as shown in FIGS. 6 is maintained. After that, the pins 13 are inserted and connected so that the upper and lower vertical axes 2 do not come off in the vertical direction.

Thereafter, the temporary support of the vertical axis group 3c for extension by the temporary support means 17 is released. After connecting the multi-stage longitudinal group 3 including the extending longitudinal group 3c as described above in a vertical manner so that the vertical length is longer than the reader 4,
As shown in FIG. 8, the ground can be excavated to a depth deeper than the leader 4 by lowering the multi-axis rotating device 8 along the leader 4 while rotating.

The ground is excavated as described above. By excavating the ground in this way, drilling of holes in the ground, formation of earth retaining walls and underground walls, improvement of the ground, and the like can be performed. Is what you do. When pulling up to the ground, it is good to carry out in the reverse order to the above connection order. In addition, the temporary support means 17
For example, in the case of the one shown in the accompanying drawings, a lower support frame 31 is arranged on both sides of the hole 30 on the ground, and an upper support frame 32 is placed and installed so as to be orthogonal to the lower support frame 31. The support bar 33 is supported by the support bar 33 to support the lower side of the horizontal connecting member 1. However, the support bar 33 is not necessarily limited to the embodiment shown in the accompanying drawings. Absent.

When the extension longitudinal group 3c is inserted into the hole, the cap 20 is attached to the square tube portion 5 as shown in FIG.
And may be detachably attached by the pins 13. By doing so, the vertical axis group 3c for adding to the hole is provided.
Is to prevent muddy soil from entering into the longitudinal axis 2 when the plug is inserted, and to remove the cap 13 by removing the pin 13 when connecting the square tube 5 and the square hole 6. It is.

As the hole for inserting the vertical axis group 3c for extension, a hole for inserting the vertical axis group 3c for extension at a position corresponding to the target position of the earth retaining wall or the underground wall to be formed. It may be provided, or a special hole may be formed only at the position other than the target position of the earth retaining wall or the underground wall to be formed, for inserting the extension vertical axis group 3c.

[0026]

According to the present invention, as described above, the rectangular holes on both sides of the three rows of rectangular holes provided at the upper end or lower end of the three vertical axes of the vertical axis group. Since the central portion is formed to project in the axial direction from the central hole portion, or the rectangular tube portions on both sides of the three rows of rectangular tube portions are made to project in the axial direction from the central portion cylindrical portion. Connection work between the rectangular tube portion and the square hole provided at each upper end of the three vertical axes of the vertical axis group and the lower ends of the three vertical axes of the vertical axis group, and the vertical axis of the additional vertical axis The connecting operation of the square tube and the square hole provided at the lower end of the three vertical axes of the group and the upper end of the three vertical axes of the lower vertical group can be easily and quickly performed. .

[Brief description of the drawings]

1A is a front view showing a vertical axis group of upper and lower stages and a vertical axis group for replenishment of the present invention, FIG. 1B is an enlarged front view of an X part of FIG. 1A, and FIG. FIG. 3A is an enlarged front view of a Y part of FIG.

FIG. 2 is an explanatory diagram showing the order of connection and excavation of a vertical axis group.

FIG. 3 is an explanatory diagram showing the order of connection and excavation of a vertical axis group.

FIG. 4 is an explanatory diagram showing the order of connection and excavation of a vertical axis group.

FIG. 5 is an explanatory diagram showing the order of connection and excavation of a vertical axis group.

FIG. 6 is an explanatory diagram showing the order of connection and excavation of a vertical axis group.

FIG. 7 is an explanatory diagram showing the order of connection and excavation of the vertical axis group.

FIG. 8 is an explanatory diagram showing the order of connection and excavation of the vertical axis group.

FIG. 9 is a perspective view of a stage in which, in the connection order according to the present invention, the upper vertical axis group is positioned above the additional vertical axis group (or the additional vertical axis group and the lower vertical axis group).

10A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group as a lower vertical axis group) corresponding to the stage of FIG. 9, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 11 is a perspective view of the next stage of FIG. 9 in the connection order of the present invention.

12A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage of FIG. 11, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 13 is a perspective view of the next stage of FIG. 11 in the connection order of the present invention.

14A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage of FIG. 13, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 15 is a perspective view of the next stage of FIG. 13 in the connection order of the present invention.

16A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage of FIG. 15, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 17 is a perspective view of a step next to FIG. 15 in the connection order of the present invention.

18A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage of FIG. 17, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 19 is a perspective view of a stage next to FIG. 17 in the connection order of the present invention.

20A is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage in FIG. 19, and FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 21 is a perspective view of the next stage of FIG. 19 in the connection order of the present invention.

22 (a) is a front view of an upper vertical axis group and an additional vertical axis group (or an additional vertical axis group and a lower vertical axis group) corresponding to the stage of FIG. 21; FIG. It is a bottom view which shows three square cylinder parts, (c) is a top view which shows three square hole parts.

FIG. 23 (a) is an exploded perspective view showing an example in which a cap is placed on the rectangular tube part of the above, and FIG. 23 (b) is a perspective view.

FIG. 24 is a perspective view showing a state in which three square tube portions and three square hole portions are not aligned in the rotation direction before connection in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal connecting member 2 Vertical axis 3 Vertical axis group 3a Upper vertical axis group 3b Lower vertical axis group 3c Extension vertical axis group 4 Leader 5 Square cylinder part 6 Square hole part 7 Heavy machine 8 Multi-axis rotating device 17 Temporary support means

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kiyoshi Hayashi 1-13-13 Awaza, Nishi-ku, Osaka-shi Inside Seiyuki Kogyo Co., Ltd. (72) Inventor Kazuhiko Tahara 1-13-113 Awaza, Nishi-ku, Osaka-shi Nariyuki Kogyo (72) Inventor Shigeki Hasuike 1-13-13 Awaza, Nishi-ku, Osaka-shi

Claims (1)

[Claims] 1. A group of vertical axes in which three vertical axes are connected in a row in a horizontal direction at a fixed interval by a horizontal connecting member, and the vertical axes are vertically aligned within a length shorter than a reader in a vertical direction. By connecting the square holes and the square cylinders provided at the upper and lower ends of the upper part, it is connected in multiple stages and the upper end of each vertical axis of the upper group of vertical axes can be moved up and down along the leader provided on the heavy equipment Connected to the multi-axial rotating device side, the vertical axis group connected in multiple stages in the vertical direction is lifted along the reader, and at least the vertical axis group excluding the upper vertical axis group is inserted into the ground, and inserted into the ground. After supporting the inserted lower vertical axis group by the temporary support means, the lower vertical axis group inserted and temporarily supported in the ground and the upper vertical axis group suspended on the multi-axis rotating device located above the ground. And, on the other hand, a vertical axis group for replenishment in which three vertical axes are connected in a row in the horizontal direction at a fixed interval by a horizontal connecting member is defined as It is inserted into a hole formed in advance and is supported by temporary supporting means, and is further provided at the upper end of the three vertical axes of the above-mentioned vertical axis group for addition and the lower end of the three vertical axes of the upper vertical axis group. Of the three rows of square holes, the square holes on both sides are projected more axially than the square holes in the center, or the square cylinders on both sides in the three rows of square cylinders are The upper vertical axis group suspended from the multi-axis rotating device is positioned above the extending vertical axis group so as to protrude in the axial direction from the rectangular tube portion.
The vertical axes of the books are respectively extended directly above the three vertical axes of the group of vertical axes for addition through a small gap, and then the vertical axis of the upper row is rotated by a multi-axis rotating device to thereby form one side of the upper row. The vertical axis located in the part and the square cylinder part and the square hole provided respectively on one vertical axis of the vertical axis group for replenishment are aligned, and in this state, the upper vertical axis group is aligned with the above one side. While slightly tilting so that the part side is down, the square tube part and the square hole part located on one side are slightly fitted, and then the upper vertical axis is rotated by a multi-axis rotating device, and the other upper part is rotated. Combine the square tube portion and the square hole portion respectively provided on the other vertical axis of the vertical axis and the additional vertical axis group of the extension vertical axis group located on the side of While slightly fitting the hole, the upper vertical axis group is inclined in the opposite direction to the above, and the square tube portion and the square hole located on the other side are slightly fitted, The square tube portion and the square hole portion respectively provided on the vertical axis located at the center of the vertical axis of the upper row and the vertical axis located at the center of the upper row after rotating the vertical axis of the upper row by the multi-axis rotating device In this state, the vertical axis group at the upper stage is moved downward to fit the square tube portion and the square hole portion at both sides and the center deeply, and then the square tube portion and the square hole portion are joined by the coupling means. And then pulling up the vertical axis group of the upper row along the leader to raise the vertical axis group for extension connected to the vertical axis group of the upper row to the ground. 3
Of the three rows of square holes provided at the lower end of the vertical axis of the row to the upper end of the three vertical axes of the lower vertical group, the square holes on both sides are more axially oriented than the central square hole. Or, the rectangular tube portions on both sides of the rectangular tube portions in the three rows are projected more axially than the central rectangular tube portion, and the refilling vertical axis group is inserted into the ground. The temporary support is positioned above the lower vertical axis group, and the three vertical axes of the extension vertical axis group are each placed with a small gap directly above the three vertical axes of the lower vertical axis group. Then, the vertical axis of the vertical axis group for replenishment is rotated by a multi-axis rotating device, and the vertical axis located on one side of the vertical axis group for replenishment and one vertical axis of the vertical axis group for the lower row. Align the square tube portion and the square hole portion respectively provided on the shafts, and in this state, while slightly tilting one side of the side where the extension vertical axis group is aligned above is one side while the other side is slightly downward. The square tube portion and the square hole portion which are located are slightly fitted, and then the vertical axis of the vertical axis group for replenishment is rotated by a multi-axis rotating device to be positioned on the other side of the vertical axis group for replenishment. The square tube and the square hole provided on the other axis of the shaft and the lower axis of the vertical axis group are aligned with each other, and in this state, the square tube and the square hole located on the one side are slightly fitted. The vertical axis group for replenishment is tilted in the opposite direction to the above, and the square tube portion and the square hole located on the other side are slightly fitted, and then the vertical axis of the vertical axis group for replenishment is Combine the rectangular tube portion and the square hole portion respectively provided on the vertical axis positioned at the center of the vertical axis group and the vertical axis located at the center of the vertical axis group for the lower vertical axis group, which are rotated by the multi-axis rotating device and added. In this state, the vertical axis group for extension is moved downward so that the square tube portions and the square hole portions on both sides and the central portion are deeply fitted, and then the square tube portion and the square hole are joined by the coupling means. The vertical axis connecting method in a multi-axis drilling machine, characterized by engaging and.