JPH11324545A - Vertical pit formation machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform the work that waves and molds a skin pipe to form a vertical pit by one machine. SOLUTION: A frame 18 of a rotary chain mechanism 17 is attached to a boom provided in a vehicle so as to travel freely in the longitudinal direction, a casing 19 is attached to a traveling body 50 traveling along this frame 18, and an excavation conveyance machine 20 and a waving molding machine 21 are attached to the casing 19. A chain 24 of the rotary chain mechanism 17 is connected with a boom side and the traveling body 50 so that the frame 18 travels for the boom and the traveling body 50 travels in the same direction for the frame 18. A skin pipe is inserted into the casing 19 to make the frame 18 vertical, the skin pipe is inserted by moving the casing 19 downward while digging, and the skin pipe is waved and molded by the waving molding machine 21 by pulling up the casing 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine for forming a shaft for erecting a pole such as a utility pole, a road sign support, and the like.

[0002]

2. Description of the Related Art To build a pole such as a utility pole, a hole is drilled in the ground with an auger, the lower part of the pole is inserted into the hole, and concrete is poured into the gap between the hole and the pillar, or earth and sand is filled. It is common to fix it back. There is no problem in building a pillar in this way if the ground is hard, but if it is a soft ground, the pillar may fall down.

The following method is known as a method for forming a shaft in a soft ground. Specifically, a casing is press-fitted and buried in the ground, the inside of the casing is excavated, a skin pipe (thin steel pipe) is inserted into the casing, and a corrugating molding machine is inserted into the skin pipe. Then, the casing is pulled out, and at the same time, the skin pipe is corrugated and formed by a corrugating molding machine, and the corrugated and formed skin pipe is used as a shaft.

According to this construction method, the landslide and the like are prevented by the skin pipe, and the skin pipe is tightly buried in the ground by corrugating the skin pipe, so that the skin pipe is buried firmly. Can be easily formed.

[0005]

According to the above-mentioned construction method, a shaft for erecting a pillar is formed, a lower part of the pillar is inserted into the shaft, and concrete is poured into a gap between the pillar and the skin pipe, or earth and sand are backfilled. If fixed, pillars can be built on soft ground so that they do not fall.

However, in order to form a shaft by the above-described method, a casing is pressed into the ground, a casing is excavated, a skin pipe is inserted into the casing, and a corrugating molding machine is formed in the skin pipe. A plurality of operations such as an operation of inserting, an operation of pulling out a casing, and an operation of lifting a corrugating molding machine are necessary, and there is no machine capable of performing these operations efficiently.

In the above-mentioned construction method, since the inside of the casing is excavated with a clamshell bucket, a shaft having a large diameter of about 2500 mm to 4000 mm, such as a shaft for sewage works, can be formed. Can not form a shaft to build pillars such as

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

[0009]

A first aspect of the present invention is directed to a vehicle having a boom capable of swinging up and down, and an endless chain attached to a frame 18 movably mounted in the longitudinal direction with respect to the boom. A rotating chain mechanism 17 is provided for rotational movement, a moving body 50 movably mounted in the longitudinal direction of the frame 18, a casing 19 mounted on the moving body 50, and inserted into the outer periphery of the casing 19. A skin pipe 160, an excavating carrier 20 attached to the casing 19, and a corrugating molding machine 21 attached to the casing 19 for corrugating the skin pipe 160. When the chain 24 rotates, the frame 18
Are connected to the boom, and the moving body 50 is connected to the frame 18 so as to move in the same direction as the frame 18.

According to the first aspect, when the chain 24 is rotated in one direction while operating the excavating / transporting machine 20, the frame 18 moves downward with respect to the boom, and the moving body 50 moves with respect to the frame 18. Moves downward, the excavator / transporter 20 moves downward together with the casing 19, and the excavator / transporter 20 sequentially excavates a hole in the ground, and the casing 19 and the skin pipe 160 are sequentially inserted into the excavated hole.

When the chain 24 is rotated in the other direction, the frame 18 moves upward with respect to the boom, and the moving body 50 moves upward with respect to the frame 8, leaving the skin pipe 160 in the ground and the casing 19. , Excavator and carrier 2
0, the corrugating molding machine 21 moves to the surface along the skin pipe 160.

As described above, the hole excavation work and the insertion work of the casing 19 and the skin pipe 160 can be performed simultaneously, and when the casing 19 is lifted, the corrugating molding machine 2 is used.
In step 1, the skin pipe 160 can be corrugated.

Therefore, the operation of inserting the skin pipe 160 into the ground and corrugating the skin pipe 160 to form a shaft can be efficiently performed by one machine. In addition, since the corrugating molding machine 21 moves up and down together with the casing 19, the corrugating molding machine 21 is moved when the casing 19 is moved upward after the casing 19 is moved downward.
Since the skin pipe 160 can be corrugated and formed, the efficiency of the operation of forming the shaft can be further improved.

Further, since the frame 18 moves with respect to the boom, and the moving body 50 moves in the same direction with respect to the frame 18, the casing 1 attached to the moving body 50
Numeral 9 moves twice the rotational movement distance of the chain 24 with respect to the boom.

Accordingly, the rotational movement distance of the chain 24 is short, the length of the chain 24 and the length of the frame 18 are short, and the total length of the rotating chain mechanism 17 is short. Easy driving operation when running.

According to a second aspect of the present invention, in the first aspect, a first actuator for rotating the chain 24, a first drive means for driving the first actuator, and an upward movement of the casing 19 with respect to the boom. Detecting means for detecting the amount of movement, a second actuator for corrugating the corrugating molding machine 21, a second driving means for driving the second actuator, When the first drive means is operated and the amount of movement detected by the detection means reaches a set value, the first drive means is stopped, and the second drive means is operated to corrugate and form the skin pipe 160. This is a shaft forming machine provided with a controller that repeatedly performs an operation of operating a first drive unit after molding.

According to the second invention, when the corrugating molding machine 21 is moved upward together with the casing 19, the chain 2
When the chain 4 is intermittently rotated and the chain 24 is stopped, the corrugating molding machine 21 operates to corrugate and form the skin pipe 160.

Accordingly, the corrugating molding machine 21 intermittently moves upward at predetermined intervals and performs corrugating molding.
The skin pipe 160 can be automatically corrugated at a predetermined pitch.

According to a third aspect of the present invention, in the first aspect, the mounting base 10 is mounted on the boom so as to be vertically swingable, and the frame 18 is mounted on the mounting base 10 so as to be movable in the longitudinal direction. When the frame 18 is swung up and down, the frame 18 is in a substantially vertical position and a substantially horizontal position. When the chain 24 is connected to the mounting base 10 and the chain 24 is rotated, the frame 18 moves in the longitudinal direction with respect to the mounting base 10. Moving body 50 on the frame 18,
A shaft forming machine in which a casing 19 is mounted below the frame 18 when the frame 18 is in a substantially horizontal position, and a support for supporting the casing 19 in a substantially horizontal position is mounted on the vehicle.

According to the third aspect of the present invention, the frame 18 and the casing 19 can be set in a substantially vertical position when the shaft is formed, the frame 18 and the casing 19 can be set in a substantially horizontal position after the vehicle travels, and the casing 19 is supported on the vehicle by the support portion. I can support it.

As described above, the overall height is reduced when the vehicle is running, and the casing 19 is stably supported by the vehicle. Moreover, the overall length of the rotating chain mechanism 17 is short, and the overall length of the vehicle is also short. Therefore, the driving operation of the vehicle is easy and the vehicle can travel in a narrow place.

According to a fourth aspect of the present invention, in the third aspect, a support 16 is rotatably mounted on the mounting base 10 via a rotation mechanism 15, and a frame 18 is mounted on the support 16 movably in a longitudinal direction. This is a shaft forming machine in which a chain 24 is connected to a support 16.

According to the fourth aspect, the frame 18 and the casing 19 are turned with respect to the vehicle by turning the support 16 with respect to the mounting base 10 by the turning mechanism 15.

As a result, during traveling, the frame 18,
The casing 19 can be supported by the support portion in the front-rear direction of the vehicle. When the skin pipe 160 is inserted into the casing 19, the frame 18 and the casing 19 are slightly inclined left and right from a position facing the vehicle front-rear direction. When the skin pipe 160 is inserted into the casing 19 from the longitudinal direction, the skin pipe 160 does not interfere with the vehicle. I can do it.

Therefore, the frame 18 and the casing 19 can be stably supported on the vehicle during traveling, and the skin pipe 160 can be easily inserted into the casing 19 from the longitudinal direction.

According to a fifth aspect of the present invention, in the fourth aspect, a detecting means for detecting an inclination angle of the frame 18 with respect to the longitudinal direction of the vehicle, an actuator for turning the turning mechanism 15 and a driving means for driving the actuator are provided. The shaft forming machine is provided with a controller that activates the driving means in response to an operation signal, and stops the driving means when the detecting means of the detecting means has a right-left inclination angle of zero.

According to the fifth aspect, an input of an operation signal to the controller from a state in which the frame 18 is tilted to the left and right with respect to the vehicle front-rear direction causes the frame 18 to be automatically turned to the vehicle front-rear direction. Can be.

According to a sixth aspect of the present invention, in the first aspect, a casing 19 is formed by an inner casing 81 connected to the moving body 50 and an outer casing 80 slidably fitted to the inner casing 81. This is a shaft formation machine to which an excavating and conveying machine 20 and a corrugating molding machine 21 are attached.

According to the sixth aspect, the outer casing 80 can be pulled out of the inner casing 81 when the shaft is formed, and the casing 19 can be made longer. it can.

Therefore, a deep shaft can be formed, and the whole machine can be made compact when the vehicle is running.

According to a seventh aspect of the present invention, in the first aspect, a corrugating machine main body 114 is attached to a longitudinal end of the casing 19, and a bit is attached to a rotary head 121 rotatably mounted on the corrugating machine main body 114. An excavation unit 123 for excavating the ground by attaching an excavator 122 is provided.
4, a transport pipe that continues through to the rotary head 121, and a transport section 142 that transports earth and sand excavated by a spiral flow section that blows out air to the transport pipe,
This is a shaft forming machine in which the excavating unit 123 and the conveying unit 142 are used as the excavating and conveying machine 20.

According to the seventh aspect, the earth and sand excavated in the excavating section 123 is conveyed by the conveying section 142 utilizing an air flow, and the conveying pipe on which the conveying section 142 is formed is a corrugated molding machine main body. Since it is continuous with the rotary head 121 of the excavation part 123 through the excavation part 114, the soil and the like excavated in front of the corrugating molding machine 21 attached to the longitudinal end of the casing 19 are conveyed through the corrugating molding machine 21. it can.

Therefore, a hole can be excavated in the ground with the excavating / transporting machine 20 and the corrugating molding machine 21 attached to the casing 19.

According to an eighth aspect of the present invention, there is provided a vehicle having a boom capable of swinging up and down, and a rotation in which an endless chain 24 is rotatably provided on a frame 18 movably mounted in the longitudinal direction with respect to the boom. Chain mechanism 17 and the frame 1
8, a moving body 50 movably mounted in the longitudinal direction, a casing 19 mounted on the moving body 50, a skin pipe 160 inserted around the outer periphery of the casing 19, and an auger shaft 250 inserted into the casing 19. An auger having a spiral blade 251 attached thereto, an auger blade tip 257 detachably attached to the tip of the auger shaft 250, and a corrugation for detachably attaching the skin pipe 160 to the tip of the auger shaft 250. A molding machine 21 is provided. The chain 24 is attached to the frame 18 and the moving body 50,
Rotates, the frame 18 moves with respect to the boom, and the moving body 50
8. A shaft forming machine, wherein the shafts are connected to each other so as to move in the same direction as the shaft 8.

According to the eighth aspect of the present invention, the chain 24 is attached to the auger shaft 250 while the
Is rotated in one direction, the frame 18 moves against the boom.
Moves downward, the moving body 50 moves downward with respect to the frame 18, and together with the casing 19, the auger,
The auger blade tip 257 moves down and excavates,
The excavated earth and sand is conveyed to the ground surface, and holes are sequentially excavated in the ground.
60 are sequentially inserted.

When the chain 24 is rotated in the other direction, the frame 18 moves upward with respect to the boom, and the moving body 50 moves upward with respect to the frame 18 so that the casing pipe 160 remains underground and the casing 19 moves. , The auger and the auger blade 257 move along the skin pipe 160 to the ground surface.

The auger blade tip 257 is removed from the auger shaft 250, and the corrugating molding machine 21 is attached.
Then, the corrugating molding machine 21 is pulled up together with the casing 19 in the same manner as described above, and the skin pipe 160 is corrugated and formed by the corrugating molding machine 21 at this time.

As described above, the hole excavation work and the insertion work of the casing 19 and the skin pipe 160 can be performed at the same time, and the auger blade tip 157 and the corrugating molding machine 21 are exchanged and inserted into the skin pipe 160, and the casing is re-formed. When raising 19, the corrugating molding machine 21 uses a skin pipe 160
Can be corrugated.

Therefore, the operation of inserting the skin pipe 160 into the ground and corrugating the skin pipe 160 to form a shaft can be efficiently performed by one machine.

Further, since the frame 18 moves with respect to the boom, and the moving body 50 moves in the same direction with respect to the frame 18, the casing 1 attached to the moving body 50
Numeral 9 moves twice the rotational movement distance of the chain 24 with respect to the boom.

Therefore, the rotational movement distance of the chain 24 is short, the length of the chain 24, the length of the frame 18 is short, and the total length of the rotating chain mechanism 17 is short. Easy driving operation when running.

According to a ninth aspect, in the eighth aspect, a shaft 254 having a discharge fin 253 for discharging earth and sand conveyed by the auger to the outside of the casing 19 is connected to the base end of the auger shaft 250. Then, this shaft 254 is connected to the auger motor 2
The shaft forming machine is designed to be driven to rotate at 55.

According to the ninth aspect, since the earth and sand conveyed by the auger is discharged to the outside of the casing 19 by the discharge fins 253, the earth and sand excavated by the auger blade 257 is conveyed along the casing 19. And can be discharged to the outside of the casing 19.

Further, since the shaft 254 is rotated by the auger motor 255 and the auger shaft 250 is rotated by the shaft 254, the auger and the discharging fin 253 rotate in synchronization with each other.
The drive mechanism for the shaft is simplified.

According to a tenth aspect, in the ninth aspect, the connection casing 2 detachably attached to the base end of the casing 19.
72 and a spiral blade 275 inserted into the connecting casing 272 and a detachable connecting auger shaft 274 between the auger shaft 250 and the shaft 254.
And a shaft forming machine including a detachable extension rod 280 between the auger shaft 250 and the shaft 254.

According to the tenth aspect, the connecting casing 272 is connected to the casing 19 with the auger blade 257 attached to the auger shaft 250, and the connecting auger shaft 274 is connected to the auger shaft 250 and the shaft 254. The auger blade tip 257 can be moved deep into the ground by being connected between them. When the corrugating molding machine 21 is mounted on the auger shaft 250, the extension rod 280 is connected to the auger shaft 250 and the shaft 254.
Can move the corrugating molding machine 21 deep underground.

As described above, the casing 19 and the auger are moved downward by a predetermined stroke by the movable body 50, and then the movable body 50 is moved upward while the casing 19 and the auger are left, and the connecting casing 272 and the connecting auger are moved. Axis 2
By connecting the 74 and moving the moving body 50 downward again, a hole deeper than the vertical stroke of the moving body 50 can be excavated, and the skin pipe 16 longer than the vertical stroke of the moving body 50 can be inserted.

The casing 1 operates in the opposite manner as described above.
9. Raise the auger to the surface, attach the corrugating molding machine 21, move the moving body 50 downward, insert it into the skin pipe 16, and leave the casing 19 and the auger to move the moving body 50.
Is moved upward to connect the extension rod 280 to the moving body 5.
By moving 0 downward, the corrugating molding machine 21 can be inserted to the lower end of the long skin pipe 160 described above.

Therefore, a shaft that is deeper than the vertical stroke of the moving body 50 can be formed.

[0050]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Overall Structure) As shown in FIGS. 1, 2, and 3, a front body 2 and a rear wheel 3 are mounted on a lower body 1, and an upper body 4 is turned on the lower body 1. 5 is a self-propelled vehicle which is mounted so as to be able to turn. This upper body 4
A first boom 6 is mounted to be swingable back and forth, and a second boom 7 is connected to a distal end of the first boom 6 so as to be vertically swingable. A first cylinder 8 is connected across the first boom 6 and the second boom 7, and a second cylinder 9 is connected across the second boom 7 and the upper body 4 to form a half-fold boom. I have.

At the tip of the second boom 7, a mounting base 10
The piston rod 12 of the working cylinder 11 connected to the second boom 7 is connected to the second boom 7 and the mounting base 10 by the first link 13 and the second link 14.
Connected to. Thus, when the piston rod 12 of the working cylinder 11 is operated to expand and contract, the mounting base 10 swings up and down.

A support 16 is rotatably mounted on the mounting base 10 via a rotation mechanism 15.
The frame 18 of the rotary chain mechanism 17 is attached movably in the longitudinal direction. A cylindrical casing 19 is attached along the frame 18 so as to be movable in the longitudinal direction, and an excavating / transporting machine 20 and a corrugating molding machine 21 are attached to the casing 19.

A drive sprocket 22 is provided at one longitudinal end of the frame 18 and a driven sprocket 23 is provided at the other longitudinal end. An endless chain 24 is wound around the drive sprocket 22 and the driven sprocket 23. Thus, a rotary chain mechanism 17 is formed. The chain 24 is connected to the support 16 and the casing 19, respectively.
While the frame 18 moves in the longitudinal direction with respect to 6,
The casing 19 moves in the longitudinal direction with respect to the frame 18. As a result, the casing 19 moves with respect to the support 16 by twice the moving distance of the chain 24.

Near the front of the lower vehicle body 1, a first support 2
The first support 25 and the second support 26 support the casing 19 so as to be in a running posture. Outriggers 27 are attached to the front left and right and rear left and right of the lower vehicle body 1, respectively.

A supporting device 28 is mounted on the frame 18.
8 is supported in a vertical position.

Next, the specific shape of each part will be described. As shown in FIGS. 4, 5, 6, and 7, the turning mechanism 15 includes a fixed-side plate 30, an outer ring 31 fixed to the fixed-side plate 30, and a bearing 32 mounted on the outer ring 31.
An inner ring 33 rotatably supported by the inner ring 33, a movable plate 34 fixed to the inner ring 33, and a turning cylinder 35 connected across the fixed side plate 30 and the movable side plate 34 are provided.

A fixed bracket 36 is fixed to the fixed plate 30, and a movable bracket 37 is fixed to the movable plate 34. This fixed side bracket 36
And the movable cylinder 37 with the pin 3
It is connected by 8. A pair of plates 39 are fixed to the movable side plate 30 to form the mounting base 10, and the support 16 is mounted to the movable side plate 34.

Because of this, the turning cylinder 35
When the movable side plate 34 is expanded and contracted, the movable side plate 34
, The support 16 turns a predetermined angle in the left-right direction with respect to the mounting base 10.

The support 16 comprises a movable plate 34 and
A pair of main plates 4 fixed to the movable side plate 34
The auxiliary plate 41 is fixed to each main plate 40.

As shown in FIG. 5, the frame 18 is a pair of left and right side plates 18a and a connecting plate 18b, and is a long member having an H-shaped cross section.
In (a), a first guide rail 42 and a second guide rail 43 are fixed to each other in parallel in the longitudinal direction.

A pair of main guide rollers 44 that are in contact with the opposing surfaces of the first guide rails 42 are attached to the pair of main plates 40 of the support 16, and the outer surface of the first guide rails 42 is attached to the auxiliary plate 41. The auxiliary guide roller 45 which is in contact with. Thereby, the frame 18
Is mounted on the support 16 so as to be movable in the longitudinal direction.

A chain drive motor 46 with a speed reducer is mounted on the connecting plate 18b of the frame 18, and a driving sprocket 22 is mounted on a rotating portion of the chain drive motor 46.

As shown in FIG. 8 and FIG.
A bracket 47 is fixed to the connecting plate 18b of the bracket 8, and the driven sprocket 23 is rotatably supported by a shaft 48 on the bracket 47. Thus, when the drive sprocket 22 is rotated by the chain drive motor 46, the chain 24 is rotationally moved in the longitudinal direction of the frame 18.

As described above, the frame 18 has an H-shaped cross section, and the drive sprocket 2
2 and a driven sprocket 23. The driving sprocket 22 and the driven sprocket 23 project to one side from the frame 18, and the cutout opening 4 of the connecting plate 18b.
9 slightly protrudes to the other side. The chain 24 is wound around the driving sprocket 22 and the driven sprocket 23 over both side surfaces of the connecting plate 18b through the notch opening 49.

As described above, the chain 24 is disposed between the left and right side plates 18a of the frame 18 and
8, the width of the rotary chain mechanism 17 can be reduced.

The chain 24 is connected to the second
Since the casing 19 does not protrude outward from the guide rail 43 side, the casing 19 can be disposed close to the frame 18.

A moving body 50 is provided at one end of the casing 19.
The moving body 50 includes a pair of main plates 51 parallel to each other and an auxiliary plate 52 fixed to each main plate 51. The main plate 51 has a second
A main guide roller 53 is attached to the opposite surface of the guide rail 43, and an auxiliary guide rail 54 is attached to the auxiliary plate 52 to contact the outer surface of the second guide rail 43. As a result, the casing 19 is supported movably in the longitudinal direction of the frame 18.

As shown in FIG. 4, a connecting block 60 is connected to the movable plate 34 of the turning mechanism 15, and a unit chain 61 forming the chain 24 is connected to the connecting block 60 by a pin 62. Thereby, the support 1
6 and the chain 24 are connected. This connecting block 60
May be fixed over a pair of main plates 40.

The moving body 50 fixed to the casing 19
As shown in FIG. 8, a connecting block 63 is fixed to the
A unit chain 61 forming the chain 24 is connected to the connection block 63 by a pin 64. Thus, the chain 24 and the moving body 50 are connected.

As shown in FIGS. 10 and 11, a pair of support rods slidably fitted to a pair of left and right guide cylinders 70 fixed to a pair of main frames 40 of the support 16 as shown in FIGS. 71 are provided. This support rod 71
Is a telescopic type in which a second support rod 73 is slidably fitted into a first support rod 72, and a ground plate 74 is attached to the second support rod 73.
Are swingably mounted by pins 75.

The second support rod 73 is in a contracted position where it is pushed into the first support rod 72 as shown by a solid line in FIGS. 10 and 11, and a first extended position where it is drawn out and shown by an imaginary line in FIG.
It is fixed with a lock pin 76.

The first support rod 72 is extended from the guide cylinder 70 as shown by a solid line in FIGS. 10 and 11, and is pushed into the guide cylinder 70 as shown by an imaginary line in FIG. The position is fixed by the second lock pin 77.

As described above, if the first support rod 72 and the second support rod 73 are set to the storage positions, respectively,
4 is a position near one end of the frame 18 as indicated by a virtual line in FIG. 10, and can be stored compactly. Also,
When the first support rod 72 and the second support rod 73 are set to the extended positions, the ground plate 74 is located farther away from the frame 18 as shown by the phantom line in FIG.

As shown in FIG. 12, the casing 19 is a telescopic type in which an inner casing 81 is slidably fitted in an outer casing 80, and the moving body 50 is mounted on the inner casing 81. First and second lock receiving plates 82 and 83 and first and second nut members 8 are provided at one end and the other end of the inner casing 81 in the longitudinal direction.
4 and 85 are fixed to each other, and a lock hole 86 is formed at one longitudinal end of the outer casing 80. The first and second lock receiving plates 82 and 83, the first and second nut members 84 and 85, and the locking hole 86 are shown in FIG.
As shown in FIG. 3, three are provided at intervals in the circumferential direction.

The lock piece 87 is fitted into the lock hole 82a of the first lock receiving plate 32 from the lock hole 86, and is fixed with a bolt 88, thereby locking the outer casing 80 and the inner casing 81 in a contracted state. Loosen the bolt 88 to remove the lock piece 87, extend the outer casing 80, and insert the lock piece 8 through the lock hole 86.
7 is fitted into the lock hole 83a of the second lock receiving plate 83 and fixed by bolts 88, thereby locking the outer casing 80 and the inner casing 81 in an extended state as shown in FIG. That is, the first and second lock receiving plates 82 and 83 and the first and second nut members 84,
A lock mechanism 89 is formed by the hole 85, the lock hole 86, the lock piece 87, and the bolt 88.

As shown in FIGS. 1, 2 and 3, a front auxiliary vehicle body 90 and a rear auxiliary vehicle body 91 are mounted on the lower vehicle body 1, respectively.
Outriggers 27 are attached to the left and right sides, respectively.

As shown in FIGS. 15, 16 and 17, arms 92 are attached to both left and right ends of the front auxiliary vehicle body 90 so as to be vertically swingable with pins 93, and a ground plate 94 is attached to the arms 92 with pins 95. The outrigger 27 is mounted so as to be swingable, and is connected to the cylinder 96 over the front auxiliary vehicle body 90 and the arm 92.
There is. When the cylinder 96 is extended, the arm 92 is moved.
Swings downward so that the ground plate 94 contacts the ground, and the cylinder 9
When the retracting operation is performed, the arm 92 swings upward and the grounding plate 9 is moved.
4 leaves the ground.

As shown in FIGS. 15, 16, and 17, the first support portion 25 and the second support portion 26 are located closer to the front of the lower vehicle body 1 and are fixed to the bracket 100 fixed to the front auxiliary vehicle body 90.
In addition, the first and second support arms 101 and 102 are attached to be able to swing left and right, and a lower support piece 103 is attached. A pressing member 104 made of an elastic material such as rubber is attached to the first and second support arms 101 and 102 so as to face each other, and a pair of supporting members 105 made of an elastic material such as rubber are attached to the lower support piece 103. Installed.

The first and second support arms 101 and 102
Is supported by a pin 106 so as to be able to swing left and right between an open position and a support position, and is held in a support position by a lock pin 107.

As described above, the lower portion of the casing 19 is placed on the support member 105 with the first and second support arms 101 and 102 in the expanded posture. First and second arm 1
The holding members 104 are pressed against the upper part of the casing 19 by swinging the support members 01 and 102 to the supporting posture. Thus, the casing 19 is stably supported on the lower vehicle body 1.

As shown in FIG. 18, a ring 110 is fixed to the inner peripheral surface of the other end of the outer casing 80 of the casing 19, and the first spacer 111 is attached to the ring 110.
Are attached with bolts 112. This first spacer 11
1, a second spacer 113 on the lower surface, and a corrugating molding machine body 11
Fourth, the third spacer 115 is sequentially superposed, and the plate 116 is superposed on the upper surface of the first spacer 111 and connected by bolts 117. An outer circle 118 is attached to the third spacer 115 with bolts 119, and an inner circle 120 is rotatably supported on the outer circle 118. A rotary head 121 is attached to the inner circle 120 with bolts.
A plurality of bits 122 are attached to 21, thereby forming a digging portion 123.

A motor mounting plate 125 is fixed to the plate 116 via a cylinder 124, and a plurality of excavating motors 126 are mounted on the motor mounting plate 125. The rotating shaft 127 rotated by each of the excavating motors 126 includes a plate 116, a first spacer 111, and a second spacer 11.
3. A pinion 128 penetrates the corrugating molding machine main body 114 and the third spacer 115, and a pinion 128 is attached to a tip end thereof. The pinion 128 meshes with the internal teeth 129 of the inner circle 120.

A hole 130 is formed at the center of the rotary head 121 as shown in FIGS. 18 and 19, and is formed in a circular shape in the rotation direction from the hole 130 on the lower surface of the rotary head 121 to the outer peripheral edge. A pair of guides 131 and a pair of nozzle bodies 132 for blowing air to the guides 131.
Is provided. The bit 122 is attached along a guide 131. Because of this, the rotating head 12
1 is rotated in the direction of the arrow, and the earth and the like excavated by the bit 122 move toward the hole 130 by ejecting air from the injection hole 132 a of the nozzle body 132.

The hole 130 of the rotary head 121 communicates with a first pipe 134, and the first pipe 134 is connected to a flexible second pipe 135 to serve as a transport pipe. The second pipe 135 hangs from one end of the inner casing 81 to the ground surface. The first pipe 1
An outer cylinder 136 is provided on the outer peripheral surface of the corrugating machine main body 114 closer to the rotary head 121 than the corrugating molding machine body 114, and a ring body 137 is provided at a tip end thereof to form an annular chamber 138. A gap 139 between the ring 134 and the ring body 137 opens into the first pipe 134.
The gap 139 is formed in the second pipe 1 from the rotary head 121 side.
A spiral flow portion is formed diagonally toward 35.

The annular chamber 138 is provided in the corrugating molding machine main body 11.
4. Ring 140 attached to outer peripheral surface of first pipe 134
The air is continuously supplied to the annular chamber 138 through the flow path formed through the pipe 141 and the like, and air is supplied to the annular chamber 138. 1 pipe 134, 2nd pipe 1
Flow to 35. Because of this, the earth and sand and the like sent into the hole 130 of the rotary head 121 are removed by the gap 139.
It is conveyed to the ground through the first pipe 134 and the second pipe 135 by the flow of air ejected from. Thus, the transport section 142 is formed.

As shown in FIGS. 20 and 21, the corrugating molding machine 21 has a plurality of corrugating cylinders 150 radially mounted on a corrugating molding machine main body 114, and each corrugating cylinder 150 has a planar shape. Is an arc-shaped mold 1
51 is moved in the radial direction.
1 moves toward the center of the corrugating molding machine main body 114 when the corrugating cylinder 150 is contracted and actuated, and the adjacent molding presses 151 come into contact with each other to form a ring shape. It moves toward the outside of the machine body 114, and a skin plate (thin steel pipe) described later.
Are spread in the radial direction and are corrugated.

The hole 152 and the air communication hole 1 between the adjacent corrugating cylinders 150 in the corrugating molding machine main body 114.
53 are formed, and the hole 152
27 is inserted, and air flows through the air holes 153.

The corrugating molding machine 21 has a molding press 151
Is moved directly in the radial direction by the corrugating cylinder 150, but may be moved via a link or by using a wedge. That is, it is only necessary to have a corrugated portion for radially moving the plurality of molding dies 151 arranged in a ring shape.

Next, the operation will be described. The outer casing 80 of the casing 19 is drawn into the inner casing 81 to be in a contracted state, and
The frame 18 is positioned above the
-The second support rods 72 and 73 are set to the storage positions.
In this state, the casing 19 is supported by the first and second support portions 25 and 26 as shown in FIG.
As a result, the overall length of the vehicle is shortened, the traveling performance is improved, and the vehicle can travel in a narrow place.

Next, the operation of forming a shaft will be described. FIG.
From the state, the first and second support arms 101 and 102 of the first and second support portions 25 and 26 are set to the spread posture, and the second boom 7 is moved.
Of the casing 19 to the first and second support portions 2
Move away from 5,26. At the same time, the mounting base 10 is swung to bring the casing 19 into the horizontal position, and the first
-The second support rods 72 and 73 are set to the extended positions, respectively.

At this time, since the first and second support rods 72 and 73 are in a horizontal posture, an operator on the ground pulls out the first and second support rods 72 and 73 by hand to set them in the extended position.
-The work of locking with the second lock pins 76, 77 can be facilitated.

As shown in FIG. 22, the ground plate 94 of the outrigger 27 is grounded. The mounting base 10 is swung upward to bring the casing 19 into a vertical position, and the ground plate 74 of the support device 28 is grounded.

The casing 19 and the like can be moved back and forth with respect to the lower body 1 by swinging the first arm 6 back and forth with the ground plate 94 of the outrigger 27 grounded.
By turning the upper body 4, the casing 19 and the like can be turned left and right with respect to the lower body 1. FIG. 22 shows a state in which the upper vehicle body 4 is turned 180 degrees.

In the state shown in FIG. 22, the chain 24 is slightly moved in one direction shown by the arrow, and the casing 19 is moved downward together with the frame 18 to obtain the state shown in FIG. In this state, the lock piece 87 of the casing 19 is removed.

From the state shown in FIG. 23, the chain 24 is slightly moved in the other direction indicated by the arrow, and the inner casing 81 is moved upward together with the frame 18 to the state shown in FIG. The lock piece 87 is attached with a bolt 88 to lock the outer casing 80 and the inner casing 81 in an extended state.

As described above, the lock piece 87 for locking the outer casing 80 and the inner casing 81 so as not to expand and contract can be easily removed from the ground and attached.

The second arm 7 is swung upward, and the mounting base 10 is swung downward to level the casing 19. As shown in FIGS. 25 and 26, the turning cylinder 35 of the turning mechanism 15 is expanded and contracted to turn the support 16 at a predetermined angle with respect to the mounting base 10, and the casing 19 is slightly inclined with respect to the posture toward the vehicle longitudinal direction. So that the extension of the casing 19 does not interfere with the upper body 4.
In this state, the skin pipe 160 is inserted and attached to the outer casing 80 and the inner casing 81 of the casing 19. As described above, since the skin pipe 160 is horizontally inserted into the casing 19, the work is easy.

[0098] The mounting base 10 is swung upward, and the turning cylinder 35 of the turning mechanism 15 is expanded and contracted to support the support 16.
The second boom 7 is swung up and down while turning left and right, and the skin pipe 160, the casing 19 and the frame 18 are set in the upright posture, and the ground plate 74 of the support device 28 is grounded as shown in FIG. Posture. That is, the frame 18 is at the uppermost position with respect to the support 16, and the moving body 50, that is, the casing 1 is positioned with respect to the frame 18.
9 is the uppermost position, and the grounding plate 74 of the support device 28 is in a vertical shaft formation starting posture in which the grounding plate 74 is grounded.

The excavating unit 12 is driven by driving the excavating motor 126.
3 is rotated, and the transport unit 142 is rotated.
The air is blown into the first pipe 134 from the gap 139 forming the first pipe 134, and the chain driving motor 46 is driven while the excavating / transporting machine 20 is operated to rotate the chain 24 in one direction shown by the arrow to move the frame 18 To move down,
The casing 19 moves downward together with the skin pipe 160.

Thus, a hole is excavated in the ground by the excavation unit 123, and the excavated earth and sand are conveyed to the ground by the conveyance unit 142, and the skin pipe 160 is sequentially inserted into the excavated hole together with the casing 19, As shown in FIG. 28, a hole is drilled to a predetermined depth to
Insert In addition, the flange 16 of the skin pipe 160
1 moves downward together with the casing 19 in contact with the third spacer 115 as shown by a virtual line in FIG.

The rotating head 121 is stopped, and the chain 24 is stopped.
Is intermittently rotated in the other direction indicated by the arrow to move the casing 19 intermittently upward at every predetermined stroke, and at every stroke, the corrugating molding machine 21 is operated to move the skin pipe 160 at predetermined intervals. It is corrugated and formed into a shaft. FIG. 29 shows a shaft formation completed state, in which a plurality of corrugated portions 162 are formed at intervals in a skin pipe 160 inserted into the ground.

Next, a hydraulic circuit for supplying pressure oil to each motor and cylinder will be described with reference to FIG. First valve 17
At 0, pressure oil is supplied to the excavation motor 126. This first
The valve 170 is held at the neutral position a and the first pressure receiving portion 17
When the pilot pressure oil acts on 1, it switches to the first position b,
When the pilot pressure oil acts on the second pressure receiving portion 172, the position is switched to the second position c. Pilot pressure oil is supplied to the first pressure receiving portion 171 and the second pressure receiving portion 172 by the first hydraulic pilot valve 173.

Therefore, by operating the first hydraulic pilot valve 173, the excavating motor 126 is rotated forward,
Can be reversed.

The work cylinder 11 and the chain drive motor 46 have a second valve 174 and first and second on-off valves 17.
At 5,176, pressure oil is supplied. This second valve 174
Is held at the neutral position a, and when the pilot pressure oil acts on the first pressure receiving portion 177, the position is switched to the first position b and the first circuit 17
8 to output pressure oil. When the pilot pressure oil acts on the second pressure receiving portion 179, it switches to the second position c and outputs the pressure oil to the second circuit 180. First pressure receiving section 177, second pressure receiving section 179
Is supplied with pilot pressure oil by a second hydraulic pilot valve 181.

The first on-off valve 175 includes a first circuit 178 and a second
The circuit 180 and the working cylinder 11 are communicated and shut off, and are held at the shutoff position d by a spring.
When a is energized, the communication position e is set.

The second on-off valve 176 is connected to the first circuit 178 and the second
The communication between the circuit 180 and the chain drive motor 46 is interrupted and held, and the spring 180 is held at the interrupted position d by a spring. When the second solenoid 176a is energized, the communication position e is established.

Accordingly, the first solenoid 175a of the first on-off valve 175 is energized to the communication position e, and the second hydraulic pilot valve 181 is operated in this state to switch the second valve 174. The pressure oil can be supplied to the cylinder 11 for expansion and contraction.

The second solenoid 176 of the second on-off valve 176
When a is supplied to the communication position e and the second hydraulic pilot valve 181 is operated to switch the second valve 174 in this state, pressure oil can be supplied to the chain drive motor 46 to perform normal rotation and reverse rotation.

The turning cylinder 35 and the corrugating cylinder 1
50 has a third valve 182 and third and fourth on-off valves 183,
At 184, pressurized oil is supplied. The third valve 182 is held at the neutral position a. When the pilot pressure oil acts on the first pressure receiving portion 185, the third valve 182 switches to the first position b and outputs the pressure oil to the third circuit 186. When the pilot pressure oil acts on the second pressure receiving portion 187, it switches to the second position c and outputs the pressure oil to the fourth circuit 188. A third hydraulic pilot valve 189 supplies pilot pressure oil to the first pressure receiving portion 185 and the second pressure receiving portion 187.

The third on-off valve 183 is connected to the third circuit 186 and the fourth
The circuit 188 and the swing cylinder 35 are communicated and shut off, and are held at the shut-off position d by a spring.
When a is energized, the communication position e is set.

The fourth on-off valve 184 is connected to the third circuit 186 and the fourth
The circuit 188 and the corrugating cylinder 150 are connected and disconnected,
The fourth solenoid 1 is held at the cut-off position d by a spring.
When the power is supplied to 84a, the communication position e is set.

Therefore, the third solenoid 183a of the third on-off valve 183 is energized to the communication position e, and the third hydraulic pilot valve 189 is operated in this state to switch the third valve 182 to turn. The pressure oil can be supplied to the cylinder 35 for expansion and contraction.

The fourth solenoid 184 of the fourth on-off valve 184
When the third hydraulic pilot valve 189 is operated to switch the third valve 182 in this state, pressure oil is supplied to the corrugating cylinder 150 to perform the expansion and contraction operation.

As described above, the excavating motor 12
6, working cylinder 11, chain drive motor 46,
The turning cylinder 35 and the corrugating cylinder 150 can be operated by manual operation. In addition, the first, second, third, and fourth
By providing the on-off valves 175, 176, 183, 184, the working cylinder 11, the chain driving motor 46, and the turning cylinder 3 can be controlled by the second and third valves 174, 182.
5. The corrugating cylinder 150 can be operated.

The second and third valves 174 and 182 can be switched by an external signal. In other words, the second
Third hydraulic pilots 181, 189 and each first pressure receiving section 17
7, 185, and the first, second, third, and fourth shuttle valves 190, 191,
192, 193, one inlet of each shuttle valve communicates with the output side of the second and third hydraulic pilot valves 181, 189, and the other inlet has first, second, third, and fourth electromagnetic valves. The outlets are connected to the first and second pressure receiving portions, respectively.

Each solenoid valve is held at a drain position f by a spring, and solenoids 194a, 195a, 196
a and 197a, the supply position g is reached. At the supply position g, the original pressure of the hydraulic pilot valve is supplied to the other inlet of the shuttle valve.

Therefore, when the first solenoid valve 194 is set to the supply position f, the first pressure receiving portion 17 of the second valve 194 is set.
7 is supplied with pilot pressure oil to be in the first position b. When the second solenoid valve 195 is set at the supply position f, the second valve 174
The pilot pressure oil is supplied to the second pressure receiving portion 179 of the second
This is position c. Similarly, the third and fourth solenoid valves 196 and 197
Is the supply position f, the third valve 182 moves to the first position b,
The position is the second position c.

The first pressure switch 1 is connected to the third circuit 186.
98 is provided, and when the third circuit 186 reaches the set pressure, the first pressure switch 198 is turned on. The fourth circuit 188 is provided with a second pressure switch 199,
Becomes the set pressure, the second pressure switch 199 turns ON.

Next, a skin pipe 16 is formed by a corrugating molding machine 21.
An apparatus for automatically performing the operation of corrugating 0 will be described. As shown in FIG. 31, a controller 200 and a control panel 201 are provided. Controller 200
The corrugation processing mode signal from the corrugation processing mode switch 202 and the O of the first and second pressure switches 198 and 199
An N signal and a rotation signal from a potentiometer 203 provided on the driven sprocket 23 are input, respectively. The controller 200 includes second, third, and fourth solenoid valves 195, 19
6,197 solenoids 195a, 196a, 197a
Turn on electricity.

The control panel 201 includes a start switch 204, an emergency stop switch 205, an ascending pitch setting switch 206, an ascending pitch setting display 207, a work completion lamp 208, and a current stroke position indicator 209 of a corrugating molding machine. . The ascending pitch setting switch 206 increases the ascending pitch by a predetermined distance, for example, every 10 mm by pressing a plus, and decreases by pushing a minus. The set ascending pitch is digitally displayed on the ascending pitch setting display 207.

The upper pitch setting display 207 displays an abnormality when an abnormality occurs. For example, disconnection of each signal line, no operation of the chain, and no operation of the corrugating molding machine are displayed.

With the skin pipe 160 inserted to a predetermined depth as shown in FIG. 28, the corrugation processing mode switch 202 is operated to input a corrugation processing mode signal to the controller 200, and the start switch 2
04 is turned on to input a start signal to the controller 200.

When the controller 200 energizes the solenoid 195a of the second solenoid valve 195,
6 is energized. As a result, the second valve 174 becomes the second position c and the second on-off valve 176 becomes the communication position e, and the pressure oil is supplied to the chain drive motor 46, and the chain 24 rotates and moves in the other direction indicated by the arrow,
The corrugating molding machine 21 moves up together with the casing 19, and the frame 18 moves up.

At the same time, the potentiometer 203 detects the rotation of the driven sprocket 23, and the rotation is input to the controller 200. The controller 200 calculates the amount of movement of the chain 24 based on the input rotation of the driven sprocket 23, and calculates the upward stroke of the corrugating molding machine 21 based on the amount of movement.

When the calculated ascending stroke of the corrugating molding machine 21 matches the set ascending pitch, the power supply to the solenoids 195a and 176a is stopped. As a result, the second valve 174 is in the neutral position a, the second on-off valve 176 is in the shut-off position d, the chain drive motor 46 stops, and the corrugating molding machine 21 stops.

At the same time, the controller 200 energizes the solenoid 197a of the fourth solenoid valve 197 and the solenoid 184a of the fourth on-off valve 184, and sets the timer 210. As a result, the third valve 182 becomes the first position a and the fourth on-off valve 184 becomes the communication position e, and the third circuit 1
Pressure oil is supplied from 86 to the extension chamber 150a of the corrugating cylinder 150, and the corrugating cylinder 150 extends and operates.
The skin pipe 160 is corrugated with a molding die 151. At this time, if the first pressure switch 198 is not turned on, the corrugating cylinder 150 does not increase the pressure in the extension chamber 150a to the set pressure. Displays no operation.

When the timer 210 times out, the energization of the solenoid 197a is stopped, the energization of the solenoid 196a of the third solenoid valve 196 is performed, and the timer 210 is set again. As a result, the third valve 182
At the position c, the cylinder 1 for corrugating from the fourth circuit 188
The pressurized oil is supplied to the 50 contraction chambers 150b, and the corrugating cylinder 150 contracts to move the molding die 151 away from the skin pipe 160.

At the time of the above operation, the second pressure switch 199
If not turned on, shrink chamber 15 of corrugating cylinder 150
Since the pressure does not rise to the set pressure within 0b,
The operation of the corrugating molding machine is displayed on the ascending pitch setting display 207.

When the timer 210 expires, the controller 200 stops energizing the solenoids 196a and 184a. As a result, the third solenoid valve 196 becomes the drain position f, the third valve 182 becomes the neutral position a, the fourth on-off valve 184 becomes the shut-off position d, and the corrugating cylinder 150 stops. At the same time controller 2
00 energizes the solenoid 195a of the second solenoid valve 195 and the solenoid 176a of the second on-off valve 176 to raise the corrugating molding machine 21 together with the casing 19 in the same manner as described above.

By repeating the above operation, the skin pipe 16
0 is corrugated at predetermined intervals as shown in FIG. When the corrugating molding machine 21 reaches the uppermost position, the work completion lamp 208 is turned on, the automatic corrugating operation ends, and the system is turned off.

Note that the first timer is provided without providing the timer 210 described above.
The expansion and contraction operations of the corrugating cylinder 150 may be confirmed by the ON signals of the pressure switch 198 and the second pressure switch 199, and the next operation may be performed by the ON signals.

In the above description, the chain driving motor 46 is an actuator that rotates the chain 24,
The second valve 174 and the second on-off valve 176 are driving means for driving the actuator. Potentiometer 20
3. The controller 200 is a detecting means for detecting an upward moving amount of the casing 19 with respect to the boom (the support 16). The corrugating cylinder 150 is an actuator that performs corrugating operation, and includes a third valve 182 and a fourth on-off valve 18.
Reference numeral 4 denotes a driving unit for driving the actuator.

Next, an apparatus for automatically setting the frame 18 in the vertical position will be described. As shown in FIG.
Is provided with an inclination angle detecting means, for example, a gyro 220.
The gyro 220 detects a tilt angle of the frame 18 with respect to the vertical in the front-rear direction and a tilt angle of the frame 18 with respect to the vertical.

As shown in FIG. 34, the controller 221
And a control panel 222. The control panel 222 includes a start switch 223, an emergency stop switch 224, a work completion lamp 225, a front-back tilt angle display 226, and a left-right tilt angle display 227. The detection angle of the gyro 220 is input to the controller 221.

When the vertical shaft formation starting posture shown in FIG. 27 is set, the frame main body 18 is set to a substantially vertical posture by manual operation, and the start switch 223 is turned on in this state.
Then, an automatic vertical adjustment operation start signal is input to the controller 221. The controller 221 controls the first, second, third, and fourth solenoid valves 194,1 according to the detection angle of the gyro 220.
95, 196, 197 solenoids 194a, 195
a, 196a, 197a, and the first and third
Solenoids 175a, 183a of open / close valves 175, 183
And the working cylinder 11 and the turning cylinder 35 are extended and contracted to bring the frame 18 into a vertical posture in the front-rear direction and the left-right direction.

For example, when the frame 18 is inclined forward with respect to the vertical, in this case, the front / rear inclination angle indicator 2
At 26, a negative angle is displayed. Controller 22
1 energizes the solenoid 194a of the first solenoid valve 194 and the solenoid 175a of the first on-off valve 175. As a result, the second valve 174 becomes the first position b, and the first on-off valve 17
5 becomes the communication position e, and the pressure oil is supplied from the first circuit 178 to the contraction chamber 11 a of the working cylinder 11.

When the working machine cylinder 11 is contracted, the mounting base 10 swings rearward and the frame 18 moves toward the vertical position in the front-rear direction, and the gyro 220 detects zero angle in the front-rear direction, the above-described solenoid is used. 194a, 195a
Turn off the power to the.

For example, when the frame 18 is inclined backward with respect to the vertical, in this case, the front / rear inclination angle indicator 2
At 26, a plus angle is displayed. Controller 221
Energizes the solenoid 195a of the second solenoid valve 195 and the solenoid 175a of the first on-off valve 175. As a result, the second valve 174 becomes the second position c, and the first on-off valve 175
Is at the communication position e, and the pressure oil is supplied from the second circuit 180 to the extension chamber 11 b of the working cylinder 11.

When the working machine cylinder 11 is extended, the mounting base 10 swings forward, the frame 18 moves toward the vertical position in the front-rear direction, and when the gyro 220 detects a zero angle in the front-rear direction, the aforementioned solenoid is used. 195a, 175a
Turn off the power to the.

For example, when the frame 18 is inclined leftward with respect to the vertical, in this case, the left and right inclination angle indicator 2
At 27, a negative angle is displayed. Controller 22
1 energizes the solenoid 196a of the third solenoid valve 196 and the solenoid 183a of the third on-off valve 183. As a result, the third valve 182 becomes the second position c, and the third on-off valve 18
3 becomes the communication position e, and pressure oil is supplied from the fourth circuit 188 to the contraction chamber 35 a of the working cylinder 35.

When the turning cylinder 35 is contracted, the mounting base 10 swings rightward and the frame 18 moves toward the vertical posture in the left and right direction, and the gyro 220 detects zero angle in the left and right direction, the above-described solenoid is used. Power supply to 196a and 183a is stopped.

For example, when the frame 18 is inclined rightward with respect to the vertical, in this case, the right and left inclination angle indicator 2
A plus angle is displayed at 27. Controller 221
Energizes the solenoid 197a of the fourth solenoid valve 197 and the solenoid 183a of the third on-off valve 183. As a result, the third valve 182 becomes the first position b, and the third on-off valve 183
At the communication position e, and the pressure oil is supplied from the third circuit 186 to the extension chamber 35b of the working cylinder 35.

When the turning cylinder 35 extends, the mounting base 10 swings to the left and the frame 18 moves toward the vertical posture in the left-right direction, and the gyro 220 detects zero angle in the left-right direction, the above-described solenoid is used. The power supply to 197a and 183a is stopped.

In the above description, the gyro 220 is a detecting means for detecting the left-right inclination angle of the frame 18. The turning cylinder 35 is an actuator for turning the turning mechanism 15 and the third valve 182 and the third on-off valve 183 are driving means for driving the actuator.

In the above description, the controller 200 for automatically controlling the corrugating molding machine and the controller 221 for automatically setting the frame 18 vertically may be the same.

In the above embodiment, the casing 19 is of an extendable type, but may be an integral casing.
Further, the support 16 is attached to the mounting base 10 via the turning mechanism 15.
However, the support 16 may be directly attached to the attachment base 10.

Next, a second embodiment of the present invention will be described. As shown in FIG. 35, an auger in which a spiral blade 251 is attached to a hollow auger shaft 250 is used as the transport unit 142.
The tip of the auger shaft 250 is rotatably supported by the bearing 252 on the tip of the casing 19. Auger shaft 25
0 is a hollow shaft 254 provided with a discharging fin 253.
The hollow shaft 254 is connected to the output shaft 256 of the auger motor 255. The auger shaft 2
An auger blade tip 257 to be the excavation section 123 at the tip of the 50
And the corrugating molding machine 21 are detachably attached.

The support 16 is directly attached to the attachment base 10, and the ground plate 258 is attached to the frame 18. Note that a turning mechanism may be provided as in the first embodiment.

As shown in FIG. 36, the lower end of the auger shaft 250 has a square hole 260, and the auger blade tip 257 is
A blade 262 and a hollow square shaft 263 are attached to 61, and the square shaft 263 is fitted and connected to a square hole 260 of the auger shaft 250. The corrugating molding machine 21 has a hollow square shaft 264, and the square shaft 264 is fitted and connected to a square hole 260 of the auger shaft 250. For example, as shown in FIG.
From 50, the bolt 265 is screwed and connected to the square shafts 263, 264. Thus, the auger blade tip 257 and the corrugating molding machine 21 can be easily attached to and detached from the auger shaft 250.

At the base end of the auger shaft 250, a square shaft portion 266 is provided.
The hollow shaft 254 has a square hole 267, and the square hole 267 is fitted to the square shaft portion 266 and connected as shown in FIG. Thus, the hollow shaft 254 and the auger shaft 250 can be easily attached and detached.

Therefore, the corrugating pipe 270 is inserted into the pipe hole 268 of the hollow shaft 254, the hollow shaft 254, the auger shaft 250, the square shaft 264, and the pipe hole 269. And connected to the pipe 271.

As shown in FIG. 38, the connecting casing 2
The connecting auger 273 is inserted through the inside 72. The connection auger 273 is formed by attaching a spiral blade 275 to a hollow connection auger shaft 274. The connection auger shaft 274 has a square hole 276 at a distal end and a square shaft 277 at a base end. is there.

As described above, the connecting casing 2
The auger shaft 274 can be connected between the auger shaft 250 and the hollow shaft 254.

As shown in FIG. 39, the hollow extension rod 280 has a square hole 281 and a square shaft 282,
It has a hole 283 for piping. Because of this, the extension rod 280 can be connected between the auger shaft 250 and the hollow shaft 254, and the corrugated pipe 270 can be connected to the hollow shaft 254.
From the extension rod 280 and the auger shaft 250 to the corrugating molding machine 21.

Next, the operation of forming a shaft will be described. FIG.
In addition to fitting the skin pipe 160 to the casing 19 as shown in FIG.
Is mounted, the frame 18 and the casing 19 are set at the shaft formation position as a vertical shaft formation start posture.

By driving the auger motor 255 to rotate the auger shaft 250 and the auger blade 257, the chain 2 is rotated.
4 is rotated in one direction to rotate the frame 18 and the casing 19.
And the grounding plate 258 contacts the ground as shown in FIG. 41 while excavating a hole in the ground. As a result, the ground in the casing 19 is sequentially excavated at the auger blade tip 257. The excavated earth and sand is transported by the auger to near the upper end of the casing 19, and is discharged by the discharging fins 253.
It is excavated outside and falls to the surface. Skin pipe 160
Is inserted into the drilled hole.

The auger shaft 250 and the hollow shaft 254 are separated.
By rotating the chain 24 in the other direction, the frame 18 and the moving body 50 are moved to the uppermost position as shown in FIG.

As shown in FIG. 43, the connecting casing 272 is connected to the casing 19, the connecting auger shaft 274 is connected to the auger shaft 250, and the skin pipe 160 is fitted to the connecting casing 272 to be inserted in the ground. It connects with the inserted casing 160.

The chain 24 is rotated in one direction to move the chain 24 as shown in FIG.
The hollow shaft 254 is connected to the connecting auger shaft 274 as shown in FIG.

The auger motor 255 is driven to rotate, and the chain 24 is rotated in one direction to excavate a hole in the ground in the same manner as described above, and as shown in FIG.
9. Lower the connecting casing 272 until the ground plate 258 contacts the ground.

When a hole is excavated to a predetermined depth, the chain 2
4 is rotated in the other direction, the casing 19 and the connecting casing 272 are pulled up, and the chain 24 is stopped when the upper end of the casing 19 projects to the ground surface as shown in FIG. Skin pipe 160 remains underground.

The connecting auger shaft 274 and the hollow shaft 254 are separated from each other, and the chain 24 is rotated in the other direction to move the moving body 50 to the uppermost position as shown in FIG.

In this state, the connecting casing 272 and the connecting auger shaft 274 are removed as shown in FIG.

The chain 24 is rotated in one direction to move the frame 18 and the moving body downward to connect the hollow shaft 254 and the auger shaft 250 as shown in FIG.

By rotating the chain 24 in the other direction, the casing 19 and the auger are pulled up, the auger blade tip 257 is pulled up to the ground, and the auger blade 250 is pulled from the auger shaft 250.
Is removed, and the corrugating molding machine 21 is attached to the auger shaft 250 as shown in FIG.

The chain 24 is moved in one direction to move the frame 18 and the moving body downward to insert the corrugating molding machine 21 into the skin pipe 160, and the ground plate 258 is brought into contact with the ground as shown in FIG. Then, the chain 24 is stopped.

The auger shaft 250 and the hollow shaft 254 are separated.
The frame 24 and the moving body 50 are moved to the uppermost position as shown in FIG. 52 by rotating the chain 24 in the other direction.

As shown in FIG. 53, the extension rod 280 is connected to the auger shaft 250, and the chain 24 is rotated in one direction to move the frame 18 and the moving body 50 downward.
As shown in FIG. 4, the extension rod 280 and the hollow shaft 254 are connected.

The chain 24 is rotated in one direction to move the frame 18 and the moving body 50 downward, and the corrugating molding machine 21 is moved.
Is further inserted into the skin pipe 160 to a predetermined depth shown in FIG. 55, and the chain 24 is stopped.

The corrugating machine 21 is operated to corrugate the skin pipe 160, and the chain 24 is intermittently rotated in the other direction to raise the corrugating machine 21 by a predetermined pitch. As shown in FIG. 56, when the upper end of the casing 19 projects on the ground, the chain 24 is stopped.

The extension rod 280 and the hollow shaft 254 are separated, and the moving body is rotated by rotating the chain 24 in the other direction.
Move to the uppermost position as shown in.

As shown in FIG. 58, the extension rod 280 is separated from the auger shaft 250, and the chain 24 is rotated in one direction to move the frame 18 and the moving body downward, so that the hollow shaft 254 is moved as shown in FIG. Is connected to the auger shaft 250.

The chain 24 is intermittently rotated in the other direction to intermittently raise the corrugating molding machine 21 and corrugate to raise the corrugating molding machine 21 to the surface as shown in FIG.

When a shallow shaft is formed, the shaft may be formed without using the connecting casing 272, the connecting auger, and the extension rod 280.

[Brief description of the drawings]

FIG. 1 is a side view of a shaft forming machine according to a first embodiment of the present invention.

FIG. 2 is a plan view.

FIG. 3 is a front view.

FIG. 4 is an enlarged view of a portion A in FIG. 1;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a rear view of a turning mechanism in FIG. 4;

FIG. 7 is a plan view of a turning mechanism in FIG. 4;

FIG. 8 is an enlarged view of a portion B in FIG. 1;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is an enlarged side view of a support device portion.

FIG. 11 is a plan view of FIG. 10;

FIG. 12 is an enlarged sectional view of a casing portion.

FIG. 13 is a sectional view taken along the line CC in FIG. 12;

FIG. 14 is a side view showing a state where a casing is extended.

FIG. 15 is an enlarged side view of a front portion of the vehicle body showing a support portion and an outrigger.

FIG. 16 is a plan view of FIG.

FIG. 17 is a front view of FIG.

FIG. 18 is an enlarged sectional view of a distal end portion of a casing.

FIG. 19 is a bottom view of the rotary cutter.

FIG. 20 is a plan view of a corrugating molding machine.

FIG. 21 is a sectional view of a corrugating molding machine portion.

FIG. 22 is an explanatory view of a shaft formation operation.

FIG. 23 is an explanatory view of a shaft formation operation.

FIG. 24 is an explanatory view of a shaft formation operation.

FIG. 25 is an explanatory view of a shaft formation operation.

FIG. 26 is an explanatory view of a shaft formation operation.

FIG. 27 is an explanatory view of a shaft formation operation.

FIG. 28 is an explanatory view of a shaft formation operation.

FIG. 29 is an explanatory view of a shaft formation operation.

FIG. 30 is a hydraulic circuit diagram.

FIG. 31 is a circuit diagram of a corrugating molding operation control circuit.

FIG. 32 is an explanatory diagram of a corrugating molding operation control.

FIG. 33 is a perspective view of a swinging and turning portion of the frame.

FIG. 34 is a diagram illustrating an operation control circuit of a frame.

FIG. 35 is a partially cutaway front view of a frame and a casing showing a second embodiment of the present invention.

FIG. 36 is an exploded perspective view of a casing, an auger, an auger blade tip, and a corrugating molding machine.

FIG. 37 is a sectional view of a shaft connecting portion.

FIG. 38 is an exploded perspective view of the connection casing, the connection auger, the casing, and the auger.

FIG. 39 is an exploded perspective view of an extension rod, a casing, a casing, and an auger.

FIG. 40 is an explanatory view of a shaft formation operation.

FIG. 41 is an explanatory view of a shaft formation operation.

FIG. 42 is an explanatory view of a shaft formation operation.

FIG. 43 is an explanatory view of a shaft formation operation.

FIG. 44 is an explanatory view of a shaft formation operation.

FIG. 45 is an explanatory view of a shaft formation operation.

FIG. 46 is an explanatory diagram of a shaft formation operation.

FIG. 47 is an explanatory view of a shaft formation operation.

FIG. 48 is an explanatory view of a shaft formation operation.

FIG. 49 is an explanatory view of a shaft formation operation.

FIG. 50 is an explanatory view of a shaft formation operation.

FIG. 51 is an explanatory view of a shaft formation operation.

FIG. 52 is an explanatory view of a shaft formation operation.

FIG. 53 is an explanatory view of a shaft formation operation.

FIG. 54 is an explanatory view of a shaft formation operation.

FIG. 55 is an explanatory view of a shaft formation operation.

FIG. 56 is an explanatory view of a shaft formation operation.

FIG. 57 is an explanatory diagram of a shaft formation operation.

FIG. 58 is an explanatory view of a shaft formation operation.

FIG. 59 is an explanatory view of a shaft formation operation.

FIG. 60 is an explanatory view of a shaft formation operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lower body 4 ... Upper body 6 ... 1st boom 7 ... 2nd boom 10 ... Mounting base 11 ... Working cylinder 15 ... Revolving mechanism 16 ... Supporting body 17 ... Rotating chain mechanism 18 ... Frame 19 ... Casing 20 ... Excavation conveyance Machine 21 Corrugating machine 22 Drive sprocket 23 Driven sprocket 24 Chain 25 First support 26 Second support 27 Outrigger 28 Support device 35 Cylinder 42 for rotation 42 First guide rail 43 Second guide rail 44 ... Main roller 45 ... Auxiliary roller 46 ... Chain drive motor 50 ... Movable body 53 ... Main roller 54 ... Auxiliary roller 70 ... Guide cylinder 71 ... Support rod 72 ... First support rod 73 ... Second support Rod 76 First lock pin 77 Second lock pin 80 Outer casing 81 Inner casing 82 Second 1 lock receiving plate 83 ... second lock receiving plate 86 ... locking hole 87 ... lock piece 89 ... lock mechanism 94 ... ground plate 96 ... cylinder 100 ... bracket 101 ... first support arm 102 ... second support arm 103 ... lower support Piece 104 ... pressing member 105 ... supporting member 107 ... lock pin 114 ... corrugation molding machine body 121 ... rotary head 122 ... bit 123 ... digging part 126 ... digging motor 134 ... first pipe 135 ... second pipe 142 ... conveying part 150: Corrugating cylinder 151: Molding die 160: Skin pipe 170: First valve 173: First hydraulic pilot valve 174: Second valve 175: First on-off valve 176 ... Second on-off valve 181: Second hydraulic pilot Valve 182: Third valve 183: Third on-off valve 184: Fourth on-off valve 189: No. 3 hydraulic pilot valve 190 ... first shuttle valve 191 ... second shuttle valve 192 ... third shuttle valve 193 ... fourth shuttle valve 194 ... first solenoid valve 195 ... second solenoid valve 196 ... third solenoid valve 197 ... fourth Solenoid valve 200 Controller 201 Control panel 203 Potentiometer 220 Gyro 221 Controller 222 Control panel 250 Auger shaft 251 Spiral blade 253 Discharge fin 254 Shaft 255 Auger motor 272 Connection casing 274 ... Auger shaft for connection 275 ... Helical blade for connection 280 ... Extension rod

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadashi Onishi 9-406 Imae-cho, Komatsu-shi, Ishikawa Komatsu Engineering Co., Ltd. Construction Equipment Attachment Division (72) Inventor Mutsumi Nakaya 9 Imae-cho, Komatsu-shi, Ishikawa Komatsu Engineering Co., Ltd. Construction Machine Attachment Division (72) Inventor Koichi Nagaoka 1815 Katano, Ota, Yamaguchi, Yamaguchi Prefecture (72) Inventor Noriyuki Ide 6-18-7 Hakozaki, Higashi-ku, Fukuoka City, Fukuoka Prefecture Company Komatsu Ltd.Kyushu branch office in China

Claims (10)

[Claims] 1. A vehicle having a boom capable of swinging up and down,
A rotating chain mechanism (17) in which an endless chain (24) is rotatably provided on a frame (18) movably mounted in the longitudinal direction with respect to the boom; Moving body (5
0) and the casing (1) attached to the moving body (50).
9), a skin pipe (160) inserted into the outer periphery of the casing (19), a digging and transporting machine (20) attached to the casing (19), and the casing (19).
And a corrugating machine (21) for corrugating and molding the skin pipe (160). The chain (24) is attached to a frame (18) and a moving body (5).
0), when the chain (24) rotates, the frame (18) moves with respect to the boom, and the moving body (5) moves.
0), respectively, connected to the frame (18) so as to move in the same direction as the frame (18). 2. A first actuator for rotating a chain (24), first driving means for driving the first actuator, and detection for detecting an upward movement amount of the casing (19) with respect to the boom. Means, a second actuator for corrugating the corrugating molding machine (21), second driving means for driving the second actuator, and the first driving means when an operation signal is inputted. When the movement amount detected by the detecting means reaches a set value, the first driving means is stopped, and the second driving means is operated to corrugate and form the skin pipe (160). 2. The shaft forming machine according to claim 1, further comprising a controller that repeatedly performs an operation of operating the first driving unit. 3. A mounting base (1) is attached to the boom so as to be vertically swingable, and a frame (18) is attached to the mounting base (10) so as to be movable in the longitudinal direction.
When the chain (0) is swung up and down, the frame (18) is set to a substantially vertical posture and a substantially horizontal posture. When the chain (24) is connected to the mounting base (10) and the chain (24) is rotated, the frame (18) is rotated. 18) is moved in the longitudinal direction with respect to the mounting base (10), the moving body (50) is mounted on the frame (18), and the casing (19) is mounted on the frame (18) when the frame (18) is in a substantially horizontal posture. 2. The shaft forming machine according to claim 1, further comprising a support for mounting the casing in a substantially horizontal position on the vehicle. 4. A support (16) is pivotally attached to the mounting base (10) via a pivot mechanism (15), and a frame (18) is attached to the support (16) so as to be movable in the longitudinal direction. The shaft forming machine according to claim 3, wherein the chain (24) is connected to the support (16). 5. A turning means (15) for detecting a left-right inclination angle of the frame (18) with respect to the front-rear direction of the vehicle.
5. An actuator for turning the actuator, a driving means for driving the actuator, and a controller for operating the driving means in accordance with the operation signal and stopping the driving means when the detecting means of the detecting means has a right-left inclination angle of zero. The shaft forming machine according to claim 1. 6. A casing (19) comprising an inner casing (81) connected to the moving body (50) and an outer casing (80) slidably fitted to the inner casing (81).
2. The shaft forming machine according to claim 1, wherein the excavating and conveying machine (20) and the corrugating molding machine (21) are attached to (1). 7. A corrugating machine main body (114) is attached to the longitudinal end of the casing (19), and a rotary head (12) rotatably mounted on the corrugating machine body (114).
1) A bit (122) is attached to the excavation part (123) for excavating the ground by excavating the ground. A transport pipe that penetrates the corrugating machine body (114) and continues to the rotary head (121); 2. A transport unit (142) for transporting earth and sand excavated by a spiral flow unit that blows air to a pipe for use, and an excavating transport machine (20) comprising the excavating unit (123) and the transport unit (142). 3. Shaft forming machine. 8. A vehicle provided with a boom capable of swinging up and down,
A rotating chain mechanism (17) in which an endless chain (24) is rotatably provided on a frame (18) movably mounted in the longitudinal direction with respect to the boom; Moving body (5
0) and the casing (1) attached to the moving body (50).
9), a skin pipe (160) inserted into the outer periphery of the casing (19), and an auger having a spiral blade (251) attached to an auger shaft (250) inserted into the casing (19). An auger blade tip (257) detachably attached to the tip of the auger shaft (250) and the skin pipe (1) detachably attached to the tip of the auger shaft (250).
60) a corrugation molding machine (21) for corrugating and molding the chain (24) with the frame (18) and the moving body (5).
0), when the chain (24) rotates, the frame (18) moves with respect to the boom, and the moving body (5) moves.
0) is connected to the frame (18) so as to move in the same direction as the frame (18). 9. A shaft (254) having earth discharging fins (253) for discharging earth and sand conveyed by the auger to the outside of the casing (19) is connected to a base end of the auger shaft (250). 9. The shaft forming machine according to claim 8, wherein the shaft (254) is rotationally driven by an auger motor (255). 10. A connecting casing (272) detachably attached to a base end of the casing (19), a spiral blade (275) inserted into the connecting casing (272), and the auger shaft (275). 250) and the shaft (25)
Auger shaft (274) for connection that is detachable between 4) and
The shaft forming machine according to claim 9, further comprising a detachable extension rod (280) between the auger shaft (250) and the shaft (254).