JP3785738B2 - Excavator building method and excavator building apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an excavating apparatus for excavating a hole in the ground, and to an embedding method and apparatus for constructing an excavating body that performs excavation by itself.
[0002]
[Prior art]
The prior art will be described with reference to an example of a drilling device for excavating a continuous hole in the shape of a groove (hereinafter referred to as a continuous groove), which is a preferred example of the present invention.
[0003]
Conventionally, in this type of excavator, as shown in FIGS. 7 and 8, a chain cutter 4 is vertically attached to a traveling carriage 1 (for example, a base machine of a crawler crane is used) 1 through a main frame 2 and a leader 3. The chain cutter 4 is constructed so as to continuously excavate a groove G having a constant width by rotating in the arrow direction in FIG. 7 while traversing horizontally in a state of being built in the ground ( For example, see JP-A-5-280043, JP-A-5-280044, and JP-A-7-173835.
[0004]
The chain type cutter 4 includes a drive unit 5 at the upper end, an excavation body (commonly referred to as a cutter post) 6 connected below the drive unit 5, and an endless chain 7 provided with an excavation blade (not shown) on the outer periphery. Is done.
[0005]
The drive unit 5 includes a drive unit frame 8, motors (hydraulic motors) 9 and 9 as drive sources attached to the frame 8, and drive wheels (sprockets) 10 that are rotationally driven by the motors 9 and 9. A protective cover 11 is provided on the front surface of the drive unit frame 8 so as to cover the drive wheel 10, and the drive unit 5 (drive unit frame 8) is suspended by a suspension rope 12 drawn from a winch (not shown). It is held up and down by the rotation of the winch.
[0006]
The excavation body 6 is constituted by connecting and connecting a plurality of tubular excavation body pieces 6 a... And the upper end of the uppermost excavation body piece 6 a is connected to the drive unit frame 8.
[0007]
On the other hand, an idler wheel (pulley) 13 is provided on the lowermost excavated body piece 6 a, and an endless chain 7 is stretched between the drive wheel 9 of the drive unit 5 and the idler wheel 13 to constitute a chain cutter 4. Is done.
[0008]
In addition, the endless chain 7 is divided | segmented for every drive part 5 and each excavation body piece 6a ..., and the division | segmentation chain 7a, 7a adjacent to the upper and lower sides at the time of cutter assembly and construction is connected, and is comprised in endless form.
[0009]
Conventionally, the method shown in FIG. 9 is used for assembling the excavated body 6 while building it in the ground by itself without using a large lifting equipment such as another large crane.
[0010]
This figure shows the work procedure from the middle of the construction in which the lower part of the excavated body including the lowermost excavated body piece 6 a has already been built at the built-in position A directly below the drive unit 5.
[0011]
Step 1
As shown in FIG. 5A, the excavated body piece 6a to be built (hereinafter referred to as an additional piece, and an already built piece is referred to as an already built piece. The latter is indicated by branch code 2) by a small crane or the like at a temporary placement position B that is away from the built-in position A and just below the drive unit 5 by the transverse movement of the traveling carriage 1. Install in posture.
[0012]
Here, when the ground is soft and the additional piece 6a2 may fall over, a deposit hole H is excavated in advance at the temporary placement position B as shown in the figure, and the additional piece 6a2 is inserted into the deposited hole H in advance. .
[0013]
Step 2
As indicated by the two-dot chain line in (a), the traveling carriage 1 is traversed to the temporary placement position B, the drive unit 5 is added and positioned just above the piece 6a2, and lowered to be connected to the piece 6a2. At this time, both the divided chains 7a and 7a are also connected (the same applies to the subsequent connections).
[0014]
Step 3
As shown in (b), the drive unit 5 is raised and the additional piece 6a2 is pulled up, the traveling carriage 1 is moved in the direction of the double line arrow, and the additional piece 6a2 is conveyed to the built-in position A.
[0015]
Step 4
As shown in (c), after the additional piece 6a2 is connected to the uppermost built piece 6a1 at the built-in position A, excavation is performed, and only the upper part of the additional piece 6a1 is shown in (d). Let the piece combination sink to a depth that is exposed to the ground.
[0016]
Thereafter, the drive unit 5 is added and separated from the piece 6a1, and then the above procedure is repeated to build the excavator 6 into the ground while assembling.
[0017]
[Problems to be solved by the invention]
However, according to this conventional excavation body building method, in the steps 2 and 4, the drive unit 5 and the additional piece 6a2 or the additional piece 6a2 and the built-in piece 6a1 are connected by the movement of the traveling carriage 1, Since position adjustment is performed by traveling the large and heavy traveling carriage 1, there is a problem that fine adjustment is difficult, and therefore, alignment is difficult, skill is required, and work time is increased.
[0018]
Further, since the traveling carriage 1 is reciprocated between the built-in position A and the temporary placement position B many times, there is a risk of causing the ground to collapse in this reciprocating section.
[0019]
Therefore, the present invention provides a drilling body building method and a drilling body building device that can be easily and quickly performed without requiring skill while positioning the traveling carriage while the pieces are connected. To do.
[0020]
[Means for Solving the Problems]
The invention according to claim 1 (excavated body building method) attaches a chain-type cutter to a traveling carriage installed on the ground via a leader, and rotates the chain-type cutter while being built in the ground. The chain cutter is configured to continuously excavate a groove having a constant width by traversing in the horizontal direction by a carriage, and the chain cutter includes a drive unit that moves up and down along the reader by an elevating mechanism, and a lower part of the drive unit. a drilling member coupled to, is constituted by an endless chain provided with excavation blades on the outer circumference, the drilling body, like an anchor drilling of drilling apparatus in which a plurality of drilling body piece tubular is Ru is configured by connecting replenishment in the method, by placing the drilling body piece to the transport carriage, the temporary position to like an anchor position of the drive unit immediately below, drive conveys the excavating direction parallel straight line Parts, or coupled to the drive and like an anchor previously excavated material pieces, by repeating the operation to settle into the ground under its own power by drilling action, in which Tatekomu the ground while assembling the drilling body.
[0021]
According to a second aspect of the present invention, in the method of the first aspect, a plurality of excavated body pieces smaller than the total number of excavated body pieces are taken as one set, and each set piece group is transported to an embedding position one by one and sequentially connected. After this connection, they are allowed to settle as a set.
[0022]
The invention according to claim 3 (excavated body building apparatus) attaches a chain type cutter to a traveling carriage installed on the ground via a leader and rotates the chain type cutter while it is built in the ground. The chain cutter is configured to continuously excavate a groove having a constant width by traversing in the horizontal direction by a carriage, and the chain cutter includes a drive unit that moves up and down along the reader by an elevating mechanism, and a lower part of the drive unit. a drilling member coupled to, is constituted by an endless chain provided with excavation blades on the outer circumference, the drilling body, like an anchor drilling of drilling apparatus in which a plurality of drilling body piece tubular is Ru is configured by connecting replenishment in the apparatus, the conveyance carriage, a conveyance guide mechanism for this conveyance carriage moving guide, comprising a conveyor drive mechanism for moving the transport vehicle, the excavating body piece above the transport From the temporary placement position placed on a car like an anchor position of the drive unit immediately below, which is constituted to move in the excavating direction parallel straight line.
[0023]
According to a fourth aspect of the present invention, in the configuration of the third aspect, the liftable range of the drive unit determined by the leader length and the lift drive stroke of the lift mechanism is set so that the excavated body pieces are placed directly below the drive unit than the total number of excavated body pieces. The size is set such that a small number of excavation body pieces can be positioned in a state where they are connected vertically.
[0024]
According to the above method and apparatus, the additional piece is moved from the temporary placement position to the built-in position by the transporting carriage that is much smaller and lighter than the traveling carriage while the traveling carriage is fixed, and is connected to the built-in piece. Alignment at the time of connecting the same piece to the drive unit or the built-in piece can be performed easily and quickly without requiring skill.
[0025]
In this case, according to the method of claim 2 and the apparatus of claim 4, a plurality of excavated body pieces are connected at the built-in position and settled together by excavation action, so that work efficiency is good and work time is further shortened. be able to.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
[0027]
In the following embodiments, the same parts as those in the conventional apparatus shown in FIGS.
[0028]
1st Embodiment (refer FIGS. 1-4)
As shown in FIG. 1 to FIG. 3, a carriage base 15 is installed on the ground across the built-in position A and the temporary placement position B, and the carriage 16 that carries the additional piece 6a2 and carries it as a conveyance guide mechanism. A pair of front and rear guide rails 17, 17 and wheels 18 laid on the carriage base 15 are provided so as to be able to linearly move in the horizontal direction in the drawing.
[0029]
Further, a pair of front and rear transfer cylinders 19 and 19 as a transfer drive mechanism are attached between the carriage base 15 and the carriage carriage 16, and the carriage carriage 16 is moved between the positions A and B by the expansion and contraction operation of the cylinders 19 and 19. It is supposed to move.
[0030]
In this embodiment, a two-stage cylinder that can obtain a large stroke is used as the transfer cylinders 19 and 19 in order to ensure a required transfer stroke.
[0031]
The transfer cylinders 19 are controlled to extend and contract by a control valve (not shown).
[0032]
In this case, as a control method of the transfer cylinders 19 and 19,
(I) a method in which an operator manually controls expansion and contraction by a manually operated control valve;
(Ii) A hydraulic or electromagnetic pilot switching valve is used as a control valve, and the operation of the transfer cylinders 19 and 19 is controlled using a sensor for detecting a cylinder stroke, a sensor for detecting the transfer carriage 16, and the like. Either the temporary placement or the built-in positions A and B can be automatically moved and stopped.
[0033]
Next, the excavation body construction method by this construction device will be described with reference to FIG.
[0034]
In FIG. 4, the work procedure from the middle of the building is shown in accordance with the description of the conventional technique (FIG. 9).
[0035]
( 1 ) The additional piece 6a2 is placed on the transport carriage 16 which is kept in the temporary placement position B as shown in FIG.
[0036]
( 2 ) The drive unit 5 is raised as shown in (b), and the transport carriage 16 is moved to the built-in position A and connected to the drive unit 5.
[0037]
( 3 ) After returning the transport carriage 16 to the temporary placement position B as shown in (c), the drive unit 5 is lowered to add the piece 6a2 to the uppermost built piece 6a1.
[0038]
( 4 ) As shown in (d), excavation is performed to sink the piece assembly.
[0039]
Thereafter, by repeating the above operation, the excavator 6 is assembled and built to a predetermined depth in the ground.
[0040]
Thus, instead of moving the traveling carriage 1 laterally, the additional pieces 6a2 are placed one by one on the transportation carriage 16 and conveyed from the temporary placement position B to the construction position A to drive the drive unit 5 and the built-in pieces 6a1. Therefore, the position adjustment of the additional piece 6a2 can be easily and finely and accurately performed by the transport carriage 16.
[0041]
For this reason, the positioning operation of the additional piece 6a2 with respect to the drive unit 5 and the built-in piece 6a1 can be performed much more easily and in a shorter time than before without requiring skill.
[0042]
Second embodiment (see FIGS. 5 and 6)
In the first embodiment, the extension pieces 6a2 are connected to the drive unit 5 and the built-in pieces 6a1 one by one to sink, whereas in the second embodiment, the length of the reader 3 is increased. Thus, the raising / lowering stroke of the drive unit 5 is expanded, and a plurality of additional pieces 6a2 are connected as a set (three sets in the figure, hereinafter described in this example) and settling.
[0043]
More specifically, as shown in FIGS. 5 (a), 5 (b), and 5 (c), the first additional piece 6a21 (hereinafter, further attached with branch codes 1, 2, and 3 in order) is the same as in the first embodiment. After being placed on the transport carriage 16 and transported from the temporary placement position B to the built-in position A and connected to the drive unit 5, the transport carriage 16 is returned to the temporary placement position B.
[0044]
As shown in (d), the drive unit 5 is raised by approximately one piece, and the second addition piece 6a22 is conveyed to the erection position A by the conveyance carriage 16 and connected below the first addition piece 6a21. .
[0045]
Next, as shown in FIG. 6 (a), the transport carriage 16 is returned to the temporary placement position B, and as shown in FIG. 6 (b), the drive unit 5 is further raised by approximately one piece, and a third additional piece is placed below it. 6a23 is conveyed and connected below the second addition piece 6a22.
[0046]
After the three additional pieces 6a21, 6a22, and 6a23 are attached below the drive unit 5 in this way, the transport carriage 16 is returned to the temporary placement position B as shown in (c), and the third additional piece 6a23 is moved to the uppermost stage. It is connected to the built-in piece 6a1 and excavation action is performed to sink the combined piece.
[0047]
If it carries out like this, since three pieces can be settled by one excavation action, work time can be shortened.
[0048]
Other Embodiments (1) In the above embodiment, the pair of transfer cylinders 19 and 19 are provided as the transfer drive mechanism between the carriage base 15 and the transfer carriage 16, but only one central cylinder 19 may be provided. Good.
[0049]
(2) As another example of the conveyance drive mechanism, a configuration may be adopted in which the thrust of the cylinder is transmitted to the conveyance carriage 16 via the moving pulley mechanism.
[0050]
Alternatively, a transport drive mechanism may be configured by providing a pinion that is rotationally driven by a motor in the transport carriage 16 and a rack gear that meshes with the pinion in the transport base 15.
[0051]
(3) In the above embodiment, one transport carriage 16 is moved from the temporary placement position B on the left and right sides to the built-in position A. However, the temporary placement position B is set on both sides of the built-in position A. At the same time, the two transport carriages 16 may be sequentially moved from one temporary placement position B to the built-in position A to the temporary placement position B on the opposite side.
[0052]
Alternatively, the temporary placement position B may be set on both sides, and the transport carriage 16 may be installed on each side, and these may be alternately moved between the temporary placement position B and the built-in position A.
[0053]
(4) as an elevating mechanism for raising and lowering the drive moving parts, in the above embodiment has been exemplified by the rope hanging a winch may be used other mechanisms such as a cylinder instead.
[0054]
【The invention's effect】
As described above, according to the present invention, instead of running the traveling carriage, the excavator piece to be added is moved from the temporary placement position to the built-in position by the transportation carriage by the transportation carriage. Since the excavation body piece is connected to the excavation body piece, alignment of the excavation body piece and the drive unit or the excavation body pieces can be performed easily and quickly without requiring skill.
[0055]
Moreover, since the traveling carriage remains fixed, there is no possibility that the ground will collapse due to repeated movement of the traveling carriage.
[0056]
In this case, according to the method of claim 2 and the apparatus of claim 4, a plurality of excavated body pieces are connected at the built-in position and settled together by excavation action, so that work efficiency is good and work time is further shortened. be able to.
[Brief description of the drawings]
FIG. 1 is a front view of an embedding device and a drilling device according to a first embodiment of the present invention.
FIG. 2 is an enlarged front view of the installation device.
FIG. 3 is a plan view of the same.
FIGS. 4A, 4B, and 4C are schematic front views for explaining an erection procedure according to the first embodiment.
FIGS. 5A, 5B, 5C, and 5D are schematic front views for explaining an erection procedure according to a second embodiment of the present invention.
FIGS. 6A, 6B and 6C are schematic front views for explaining the erection procedure following FIG. 5D.
FIG. 7 is a schematic front view of an underground continuous trench excavating apparatus which is a preferred example of the present invention.
FIG. 8 is a schematic side view of the apparatus.
FIGS. 9A and 9B are schematic front views for explaining a building procedure according to a conventional method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Traveling carriage 3 Leader 4 Chain type cutter 5 Chain type cutter drive part 6 Excavator 6a Excavator piece 6a1 Built excavator piece 6a2, 6a21, 6a22, 6a23 Excavator piece to be added 7 Endless chain of chain cutter DESCRIPTION OF SYMBOLS 12 Suspension rope which comprises an raising / lowering mechanism 16 Conveyance cart 15 Cart base 17 Guide rail as a conveyance guide mechanism 18 Same wheel 19, 19 Conveyance cylinder as a conveyance drive mechanism

Claims (4)

A chain-type cutter is attached to a traveling carriage installed on the ground via a reader, and the chain-type cutter is moved in a horizontal direction by the traveling carriage while rotating while the chain-type cutter is installed in the ground. The chain cutter includes a drive unit that moves up and down along the leader by an elevating mechanism, a drilling body that is connected to the lower part of the drive unit, and a drilling blade on the outer periphery. is constituted by an endless chain has, the drilling body, the excavating body like an anchor method of drilling apparatus in which a plurality of drilling body piece tubular is Ru is configured by connecting replenishment, placed on a transport carriage of the drilling body piece, from temporary position to like an anchor position of the drive unit immediately below, the drive unit conveys the excavating direction parallel straight line, or the drive unit and the like an anchor already drilling bodies Linked to over scan, by repeating the operation to settle into the ground under its own power by drilling action, the drilling body like an anchor method of drilling apparatus characterized by Tatekomu the ground while assembling the drilling body.   2. The excavator assembly method for an excavator according to claim 1, wherein a plurality of excavator pieces smaller than the total number of excavator pieces are taken as a set, and each set piece group is transported to the build position one by one and sequentially connected. And the excavation body erection method of excavation equipment characterized by sinking as one set after this connection. A chain-type cutter is attached to a traveling carriage installed on the ground via a reader, and the chain-type cutter is moved in a horizontal direction by the traveling carriage while rotating while the chain-type cutter is installed in the ground. The chain cutter includes a drive unit that moves up and down along the leader by an elevating mechanism, a drilling body that is connected to the lower part of the drive unit, and a drilling blade on the outer periphery. is constituted by an endless chain has, the drilling body, the excavating body like an anchor device of the excavation device in which a plurality of drilling body piece tubular is Ru is configured by connecting replenishment, conveyance carriage and, with this transport carriage move a conveyance guide mechanism guiding for, and and a transport drive mechanism for moving the transport vehicle, just below the drive unit to the drilling body piece from the temporary placement position placed on the transport carriage Like an anchor to the position of the drilling body like an anchor device of the excavation apparatus characterized by being configured to move in excavating direction parallel to a straight line. 4. The excavator assembly apparatus for an excavator according to claim 3, wherein an elevating range of the drive unit determined by the leader length and the elevating drive stroke of the elevating mechanism is set so that the excavator piece is directly below the drive unit from the total number of excavated body pieces. An excavator embedment apparatus for an excavator, wherein the excavator is set to a size that allows a plurality of excavator pieces to be positioned in a vertically connected state.

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