JP3825516B2 - Vertical shaft segment assembly equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shaft segment assembly facility. More particularly, the present invention relates to a shaft segment assembling facility that can automatically and quickly construct a shaft.
[0002]
[Prior art]
When excavating a horizontal shaft such as a subway tunnel, it is necessary to excavate a vertical shaft in order to carry a shield machine or materials into the horizontal shaft.
[0003]
The vertical shaft is formed by excavating a vertical hole using a drilling machine such as a hydraulic shovel or a crane equipped with a clamshell, and covering the inner wall of the vertical hole with concrete for earth retaining.
[0004]
And the concrete for earth retaining has shifted from what is made by the method of pouring concrete into the formwork and solidifying it, to which the arc-shaped segments manufactured in advance are assembled into a cylindrical shape inside the vertical hole. It's getting on.
[0005]
In addition, when assembling a segment, it has been conventionally performed by a hand-assembled method using a crane.
[0006]
[Problems to be solved by the invention]
However, when assembling the segments by hand assembly using a crane, there is a problem that it is difficult to quickly make a shaft due to poor work efficiency. As the depth tends to increase, it is expected that it will become more difficult to make by hand.
[0007]
In addition, the manual assembly method using a crane is a heavy labor for workers.
[0008]
In view of the above circumstances, an object of the present invention is to provide a shaft segment assembly facility capable of automatically and quickly constructing a shaft.
[0009]
[Means for Solving the Problems]
The present invention moves to the circumferential direction of the vertical hole 5, a segment hoisting device 14 capable of stacking a new segment 13 on the existing segment 6 assembled in the vertical hole 5, and the segment 13 to the segment hoisting device 14. A segment supply device 35 capable of supply, and a segment delivery device 41 capable of delivering the segment 13 from the segment supply device 35 to the segment stacking device 14 ;
The segment hoisting device 14 includes a guide rail 16 having a ring shape concentric with the vertical hole 5, a traveling carriage 19 attached so as to be able to travel along the guide rail 16, and a diameter of the guide rail 16 by a radial movement mechanism 22. A radially moving frame 23 that can move in the direction, a vertically moving frame 27 that can be lifted and lowered by a vertically moving mechanism 26, and a key-shaped segment locking tool 29 that can be inserted into a locking key hole 28 formed in the segment 13. Further, the present invention relates to a shaft segment assembling facility comprising a segment holding mechanism 31 including a locking device rotating drive device 30 capable of rotating the segment locking device 29 .
[0010]
[0011]
According to the above means, the following operation can be obtained.
[0012]
The segment 13 supplied by the segment supply device 35 is delivered to the segment stacking device 14 by using the segment delivery device 41, and the segment lifting device 14 moves the received segment 13 in the circumferential direction of the vertical hole 5 so that the vertical hole 5 is stacked on the existing segment 6 assembled in the inside.
[0013]
At this time, the segment stacking device 14 is inserted into the locking key hole portion 28 formed in the segment 13 by using the locking device rotating drive device 30 of the segment holding mechanism 31. Is rotated around the vertical hole 5 along the guide rail 16 that is concentric with the vertical hole 5, and the radial movement frame 23 is guided by the radial movement mechanism 22. The segment 13 can be stacked at an arbitrary position on the existing segment 6 by moving the frame 16 in the radial direction and moving the lift moving frame 27 up and down by the lift moving mechanism 26.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 to 9 show an example of an embodiment of the present invention.
[0016]
In the figure, reference numeral 1 denotes a cutter 3 which can be rotated at the lower end and can be moved in and out in the vertical direction, a plurality of supporting leg portions 2 which can be moved in and out in the radial direction are provided on the side surface, and the muddy water excavated in the axial center portion to the outside. It is a vertical hole excavator provided with a pump unit 4 for discharging soil that can be discharged. 5 is a vertical hole excavated by the vertical hole excavator 1, 6 is an existing segment constructed in the vertical hole 5, and a vertical shaft is constructed by constructing the existing segment 6 in the vertical hole 5 and performing earth retaining. . Reference numeral 7 denotes a ring-shaped segment receiver which has a triangular cross section and is arranged at the lower end of the existing segment 6 so that the existing segment 6 can be easily pushed into the soil when propelled into the soil.
[0017]
Further, 8 is a set of four support frames standing around the entrance of the vertical hole 5, 9 is a connecting beam for connecting the support frames 8, 10 is an earth anchor for fixing the support frame 8 to the ground, 11 Is an anchor jack for pulling the earth anchor 10 and 12 is a propulsion jack attached to the lower surface of the support frame 8 for pushing the upper end of the existing segment 6 to propel the existing segment 6 into the ground. is there.
[0018]
In the present invention, the segment stacking device 14 for stacking a new segment 13 on the upper portion of the existing segment 6 is attached to the support frame 8.
[0019]
The segment hoisting device 14 includes a guide rail 16 in a ring shape concentric with the vertical hole 5, attached to the lower surface of the support frame 8 via a support member 15, and the upper and lower surfaces and left and right side surfaces of the guide rail 16. A substantially concave traveling carriage 19 is mounted so as to be able to travel in a suspended state via a plurality of traveling rollers 17 and a traveling drive device 18 such as a motor.
[0020]
As shown in FIGS. 3 to 6, the segment hoisting device 14 includes a radial movement mechanism including a radial movement linear guide 20 and a radial movement drive device 21 such as a cylinder on the lower surface of the traveling carriage 19. A radially moving frame 23 attached via 22 and movable in the radial direction of the guide rail 16, and a lifting drive device 25 such as a lifting linear guide 24 and a cylinder on the outer peripheral surface of the radially moving frame 23. And an up-and-down moving frame 27 attached to be movable up and down via an up-and-down moving mechanism 26.
[0021]
Further, the segment hoisting device 14 has a publicly known key-shaped segment locking tool 29 that can be inserted into a locking key hole 28 formed in the segment 13 at the center of the outer peripheral surface of the lifting and lowering moving frame 27. A segment supporting mechanism 31 that includes a segment holding mechanism 31 that is attached to be able to rotate and move in and out via a locking device rotating drive device 30 and that supports the segment 13 at each corner portion of the outer peripheral surface of the lifting and lowering moving frame 27. A member 32 is provided.
[0022]
A segment supply device 35 for supplying the segment 13 carried by a crane 33 such as an external portal crane to the segment delivery place 34 for the segment loading device 14 is provided on the ground.
[0023]
As shown in FIG. 7, the segment supply device 35 includes a segment support member 40 made of a slippery resin such as nylon that slidably supports the segment 13 attached along the upper surface of the frame 38, and a segment support. It is comprised by the endless chain 37 provided with the segment sending nail | claw 36 which pushes the rear part of the segment 13 put in the state laid on the member 40 with a fixed space | interval.
[0024]
Reference numeral 39 denotes a drive motor for driving the chain 37. Further, the segment support member 40 is not limited to a resin such as nylon, and may have a large number of rollers.
[0025]
Further, the segment delivery device 41 is provided with a segment delivery device 41 that wakes up the segment 13 that has been supplied by the segment supply device 35 and delivers it to the segment lifting device 14 at the segment delivery location 34.
[0026]
As shown in FIGS. 8 and 9, the segment delivery device 41 includes a base 42 fixed at a position where the segment delivery device 35 enters under the end of the segment delivery location 34, and the base 42. A lower end portion is fixed to a shaft 44 that is rotatably inserted into a bracket 43 attached to the bracket 43, a segment locking claw 45 is formed in an intermediate portion, a segment support surface 46 is formed on one side surface of the upper portion, and a segment A pair of left and right attached to be able to undulate from a horizontal state in which the support surface 46 is facing upward and waiting at the lower part of the segment supply device 35 to a vertical state in which the segment support surface 46 is directly opposite to the segment stacking device 14 A raising and lowering drive device 49 such as a cylinder which is interposed between the raising and lowering arm 47, the base 42 and the auxiliary arm 48 fixed to the shaft 44 and which can raise and lower the raising and lowering arm 47, and the raising and lowering arm. For segment locking for holding the segment 13 between the segment locking claws 45 by locking the segment 13 pivotally attached to the pin 50 inserted between the upper end portions of 47 The lever 51 and a latch driving device 52 such as a cylinder that is interposed between the rear end portion of the segment locking lever 51 and the hoisting arm 47 and can raise and lower the segment locking lever 51. ing.
[0027]
Next, the operation will be described.
[0028]
The cutter 3 attached to the lower end of the vertical hole excavating apparatus 1 is rotated to excavate the vertical hole 5, and the excavated mud water is discharged to the outside using the soil discharging pump unit 4.
[0029]
At this time, the vertical hole excavator 1 is supported and fixed to the lower end portion of the existing segment 6 constructed in the vertical hole 5 as described later by using the support leg 2, and the cutter 3 is rotated while protruding downward in this state. As a result, the required amount of the vertical hole 5 is excavated. When the required amount of the vertical hole 5 is excavated, the support state of the vertical hole excavating device 1 by the support leg 2 is released, and the upper end of the existing segment 6 is pressed using the propulsion jack 12 attached to the lower surface of the support frame 8. To push the existing segment 6 into the ground. In this way, when the existing segment 6 is propelled into the soil, the vertical hole excavating device 1 is supported and fixed to the lower end of the existing segment 6 again by using the support leg 2 and the cutter 3 is rotated while projecting. Then, the excavation of the vertical hole 5 is advanced deeply into the soil.
[0030]
And the assembly of the segment 13 in the vertical hole 5 is performed as follows.
[0031]
That is, first, the segment 13 that has been carried by the crane 33 such as an external portal crane is placed on the segment support member 40 of the segment supply device 35 with the inner surface facing upward, and the segment supply device The segment 13 is fed along the segment support member 40 to the segment delivery location 34 by moving the 35 chain 37 and pushing the rear part of the segment 13 with the segment delivery pawl 36 attached to the chain 37.
[0032]
The segment 13 is fed so as to slide on the segment support member 40 made of resin such as nylon attached to the frame 38 of the segment supply device 35. Or the segment 13 is conveyed on the segment support member 40 comprised with many rollers.
[0033]
Next, the segment 13 sent to the segment delivery location 34 while being laid down by the segment supply device 35 is raised by the segment delivery device 41.
[0034]
In other words, the pair of left and right hoisting arms 47 are placed in a horizontal state where the segment support surface 46 faces upward and is waiting at the lower part of the segment supply device 35, and the segment delivery device 34 is laid down by the segment supply device 35. When the segment 13 that has been sent to the vehicle rides on the segment support surface 46 formed on one side surface of the upper portion and is caught on the segment locking claw 45 formed in the middle portion of the hoisting arm 47, a cylinder or the like The segment driving lever 51 is lifted around the pin 50 so that the segment 13 is held between the segment locking claw 45 and the segment locking claw 45.
[0035]
Next, the hoisting drive device 49 such as a cylinder is extended to raise and lower the hoisting arm 47 to a vertical state in which the segment support surface 46 faces the segment hoisting device 14.
[0036]
In this state, the segment hoisting device 14 receives the segment 13 from the segment delivery device 41 and the segment hoisting device 14 piles up the new segment 13 above the existing segment 6 as follows.
[0037]
That is, the travel drive device 18 such as a motor in the segment stacking device 14 is driven to roll a plurality of travel rollers 17 that engage the upper and lower surfaces and the left and right side surfaces of the guide rail 16, thereby supporting the support frame 8. A substantially concave traveling carriage 19 is caused to travel to the segment delivery place 34 along a guide rail 16 having a ring shape concentric with the vertical hole 5, which is attached to the lower surface of the housing via the support member 15.
[0038]
Next, the lifting / lowering driving device 25 such as a cylinder in the lifting / lowering moving mechanism 26 is expanded / contracted to move the lifting / lowering moving frame 27 along the lifting / lowering linear guide 24 to a height necessary for delivery of the segment 13.
[0039]
Thereafter, the radial movement drive device 21 such as a cylinder in the radial movement mechanism 22 is expanded and contracted to move the radial movement frame 23 along the radial movement linear guide 20 and radially outward of the guide rail 16. The key-shaped segment locking tool 29 of the segment holding mechanism 31 is inserted into the locking key hole 28 formed in the segment 13.
[0040]
Furthermore, the segment locking tool 29 is rotated by driving the known locking tool rotation driving device 30 and the segment locking tool 29 is attracted to the locking tool rotation driving device 30 side. 29 is locked to the locking key hole 28.
[0041]
As a result, the segment 13 is supported by the segment support members 32 provided at the respective corners of the outer peripheral surface of the up-and-down moving frame 27, and the locking key hole 28 of the segment 13 is locked by the segment locking tool 29. Therefore, the segment hoisting device 14 is in a state where it can receive the segment 13 from the segment delivery device 41.
[0042]
Next, the segment delivery device 41 is unlocked from the segment locking lever 51 by the segment locking lever 51, and the segment moving device 14 of the segment stacking device 14 is actuated to slightly lift the segment 13 and move in the radial direction. The mechanism 22 is operated to move the segment 13 slightly inward in the radial direction of the guide rail 16 to retract the segment 13 so that the segment 13 does not interfere with the segment delivery device 41.
[0043]
In this state, the traveling carriage 19 is caused to travel in the circumferential direction of the guide rail 16 to carry the new segment 13 to the position where the existing segment 6 is to be stacked, and the elevating moving frame 27 is lowered so that the new segment 13 is moved to the existing segment 6. 6, the new segment 13 is connected to the existing segment 6, and then the locked state of the locking key hole 28 by the segment locking tool 29 is released, and the radial movement frame 23 is moved. By moving inward in the radial direction, the new segment 13 is separated from the new segment 13, and the new segment 13 is pressed by the corresponding propulsion jack 12, whereby the new segment 13 is stacked on the existing segment 6.
[0044]
Thereafter, the shaft is constructed automatically and within a short time by repeating the same operation.
[0045]
It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
[0046]
【The invention's effect】
As described above, according to the shaft segment assembly facility of the present invention, it is possible to achieve an excellent effect that a shaft can be constructed automatically and quickly.
[Brief description of the drawings]
FIG. 1 is an overall schematic side view of an example of an embodiment of the present invention.
FIG. 2 is a schematic plan view of FIG.
3 is a view taken in the direction of arrows III-III in FIG. 2;
4 is a view taken along arrow IV-IV in FIG. 3;
FIG. 5 is a VV arrow view of FIG. 3;
6 is a view taken along arrow VI-VI in FIG. 4;
7 is a view taken in the direction of arrows VII-VII in FIG. 2;
8 is a view taken along arrow VIII-VIII in FIG. 2;
9 is a view taken along arrow IX-IX in FIG.
[Explanation of symbols]
5 Vertical Hole 6 Existing Segment 13 Segment 14 Segment Lifting Device 16 Guide Rail 19 Traveling Cart 22 Radial Movement Mechanism 23 Radial Movement Frame 26 Elevation Movement Mechanism 27 Elevation Movement Frame 28 Locking Keyhole 29 Segment Locking Tool 30 Locking Tool rotating drive device 31 Segment holding mechanism 35 Segment supply device 41 Segment hoisting device

Claims (1)

A segment hoisting device (14) capable of moving in the circumferential direction of the vertical hole (5) and stacking a new segment (13) on the existing segment (6) assembled in the vertical hole (5); Segment supply device (35) capable of supplying segment (13) to device (14) and segment delivery device (41) capable of delivering segment (13) from segment supply device (35) to segment loading device (14) equipped with a door,
The segment hoisting device (14) includes a guide rail (16) having a ring shape concentric with the vertical hole (5), a traveling carriage (19) attached to be able to travel along the guide rail (16), and a diameter. A radial movement frame (23) movable in the radial direction of the guide rail (16) by the direction movement mechanism (22), a lifting movement frame (27) movable by the lifting movement mechanism (26), and a segment (13) A key-like segment locking device (29) that can be inserted into the locking key hole portion (28) formed in the upper portion, and a locking device rotating drive device (30) that can rotate the segment locking device (29). A shaft segment assembling facility comprising a segment holding mechanism (31) .

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