KR20120043619A - Apparatus for supporting telescopic boom for mounting crane to construct pillar of tower shaped structure and method for constructing pillar - Google Patents

Abstract

PURPOSE: An apparatus for supporting a flexible boom for loading on a pillar construction crane and a method for constructing a pillar are provided to grip a pillar member with a pair of gripping arms and to fasten the supporting member with pillar fastening units, in order that a flexible boom supports is supported by the pillar member. CONSTITUTION: An apparatus for supporting a flexible boom for loading on a pillar construction crane and a method for constructing a pillar comprises a base(5), a pillar support base(6), a pair of gripping arms(7L,7R), roller chains, a base operating cylinder(5c), an arm operating cylinder(7a), and a chain opening and closing cylinder. The base is fixed in a flexible boom. The gripping arms are supported in the pillar support base in a parallel direction with a pillar shaft direction in order to move from an opening position in which the pillar member is opened to a gripping position in which the pillar member is gripped. The roller chains are installed inside the pair of the gripping arms and can be reduced diameter less than the gripping arms. The base operating cylinder allows the pillar support base to move forth and back. The arm operating cylinder operates the gripping arms.

Description

SUPPORTING METHOD AND CONSTRUCTION BUILDING OF A CONSTRUCTION BOOM FOR CRANE MOUNTING CRANE FOR TOP CONSTRUCTIONS

The present invention is to expand the construction crane used in the construction of a tower-like structure that extends to a high position in the air, such as props, towers, monuments, etc. that are built on the ground to the top, and to elevate to the top of the tower-like structure A support method of a telescopic boom which supports a boom to a support | pillar to be built, and the construction method of the said support | pillar performed using the said construction crane mounted on the telescopic boom supported by this support apparatus.

As a tower-shaped structure to be built on the ground, there are various kinds of towers, monuments, chimneys, and the like, and one of them is a windmill tower, which is a pillar of a windmill for wind power generation. The top of the windmill tower is provided with a plurality of propeller blades (blades) supported by a horizontal axis, and is a heavy object such as a generator that is generated by the rotation of the windmill and a rotating mechanism that adjusts the direction of the windmill toward the wind blowing. A nacelle is formed. In addition, in order to stably increase power generation efficiency, it is necessary to receive a certain amount of strong wind, and it is preferable to position the top portion at the highest position as much as possible. That is, in a windmill tower, it is necessary to extend a top part to a high position as much as possible, and to support a heavy thing on a top part. In order to construct this kind of tower-shaped structure, a large crawler crane, a mobile crane (tire crane), etc. are generally used.

By the way, in order to improve the power generation efficiency, it is required to extend the top of the windmill tower to the highest position as described above in order to increase the power generation efficiency. For example, for example, a nacelle, a blade, a hub, etc. It is required to install the windmill body. On the other hand, when the height is increased, the power generation capacity is increased, and the base for power generation is enlarged, and the weight of the windmill body is 50t or more. In the case of constructing a 100m windmill, the existing mobile crane becomes difficult to load only up to about 80m when the load load weight is 50t or more, and a large crawler crane is used.

However, it is difficult for large crawler cranes to secure a carry-on path to the installation site of the tower structure. In particular, in the case of the windmill for power generation, it is often provided in the coastal part or the mountainous part, and especially in the case of the windmill provided in the mountainous part, it is impossible to ensure a carry-in path. For this reason, it is necessary to disassemble the truck and transport it to the installation site. In addition, the large crawler crane has a structure in which a lattice boom is extended, and the lattice boom and the caterpillar are dismantled and transported to the installation site, where the bogie, the lattice boom, and the counter weight are assembled. There is. In addition, as a space for installing the windmill for power generation, a size capable of arranging a foundation portion for supporting the windmill tower is sufficient, but when assembling a lattice boom, it is necessary to attach it to the truck as it is extended from the ground. Therefore, the space for assembly and disassembly of the lattice boom becomes much larger than the installation space of the windmill for power generation. In addition, when installing a windmill for power generation, it is common to provide a plurality of condensers. In the case of a large crawler crane, even if a construction of one unit is completed and an adjacent windmill for power generation is constructed, a lattice boom After dismantling and moving the trolley, the lattice boom must be assembled again, and the work is complicated, and the construction period is extended due to the assembly and disassembly of the lattice boom.

In recent years, various cranes have been developed for the construction of high-rise windmills. For example, a large-scale outrigger is installed to secure a carry-on path by reducing the width of the bogie, and the assembly and disassembly of the bogie, the lattice boom, and the counterweight are required. Hassle is not improved.

These cranes are mounted on the uppermost end of the telescopic boom, and examples of the structure of the telescopic telescopic boom include those disclosed in Patent Document 1 and Patent Document 2.

In addition, this applicant applies to the constructed part of the tower-shaped structure which builds a stretch boom.

The construction method of the tower-shaped structure and the crane for construction which were made to support were proposed (patent document 3).

Japanese Patent Laid-Open No. 11-301976 International Publication WO2007 / 052339 Japanese Patent Publication No. 2009-113922

The construction crane proposed by the present applicant in the aforementioned Patent Document 3 is to be supported by the tower structure to be constructed every time the extension boom is extended. That is, in the construction method of the tower-shaped structure in which the tops are extended to a high position above the air by stacking and constructing a plurality of divided support members by a crane, the crane is installed on the upper part of the flexible telescopic boom. And linking the telescoping boom with the strut, the linking means for fixing the telescoping boom to the strut, stacking the strut member, extending the telescopic boom according to the height of the stacked strut member, and The support member is repeatedly constructed by linking the support member and the elastic boom at a position corresponding to the support member with the linkage means.

Various mechanisms can be considered for the linkage means, and the work of linking the extension boom and the props through the linkage means becomes a work at a high place. For this reason, depending on the mechanism of this linkage means, a worker needs to be suspended by a crane or the like to perform the work. When the worker performs the linking operation of the linkage means, a crane for lifting the worker is required, and the crane must be brought to the construction site, and the heavy weight for construction increases, which makes construction work cumbersome. There is a risk of losing. For this reason, it is preferable that the said linkage means can perform a linkage | work operation by remote operation from the ground.

Here, the present invention is for mounting a crane for construction of a tower-shaped structure in which a telescopic boom of a crane is connected to a support constructed by the crane by remote operation from the ground, so that the telescopic boom can be supported by a support. In addition to providing a support device for a telescopic boom, an object of the present invention is to provide a support for constructing a columnar structure for constructing the post using a telescopic boom supported by the support device.

As a technical means for achieving the said objective, the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on this invention is a support | pillar of the tower structure in which the top part extended to the high position of the upper part, and a plurality of support members. For the construction of the tower-shaped structure for mounting the construction crane for hanging up the strut member, and for supporting the expansion boom for raising the construction crane while extending according to the stacking height of the strut member in order to build up the construction. A support device for a crane-mounted telescopic boom, comprising: an attachment base fixed to the telescopic boom, a support base base retractable to the attachment base, and a support parallel to the axis direction of the support post on the support base base; And swing from the open position to open the support member to the forge position to position the support member. A pair of forge arms which supported the proximal end, a support tightening means that is smaller in diameter than the forge arm at the forge position, which is provided inside the pair of forge arms, base retracting means for retracting the support base base, and the forge arm. And arm opening / closing means for rocking the shaft, and opening / closing means for shrinking and closing the prop tightening means and expanding the shaft from the reduced diameter position.

The lowermost shore member of the shore to be constructed is installed by appropriate means such as a crane. In this case, since it is a lowermost strut member, it does not need to hang to a high place, and it can work by the crane etc. which can support the strut member between installation work.

Next, it arrange | positions along the said lowermost support member in the state which contracted | contracted the telescopic boom which mounted the jib crane which is a construction crane for constructing a support to a front end. In this state, the support base is advanced by the base retracting means to a position where the support member can be held by the forge arm. If the support base is advanced to an appropriate position, the arm swinging means swings the forge arm to the forge position and positions the support member with the forge arm. Subsequently, the support clamping means is reduced in diameter by the opening and closing means to tighten the support clamping means to the support member, and the support member is supported on the support member by the expansion and contraction boom.

Thereafter, the second stage strut member is suspended by the jib crane, stacked on the lowermost strut member, and fixed by fixing means such as bolts and nuts. The second stage boom is supported by the second stage boom by holding the second stage strut member with the forge arm of the second stage boom of the telescopic boom and tightening the strut tightening means. .

That is, by stacking the strut members with the jib crane, the supporting members are stacked on the strut members fixed to the lower strut members to sequentially support the boom stretched through the forge arm and the strut tightening means. You can build the strut of the structure.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on Claim 2 consists of a pair of piston cylinder mechanism which the said base retraction means is fixed to the said attachment base, The pair of pistons It is characterized by comprising a retreat guide means for guiding the advancing and retreating of the prop support base, with the slide direction of the cross section being substantially parallel to the longitudinal direction of the telescopic boom.

In addition, the said substantially parallel direction includes a process error and an adhesion error, and what is necessary is just to make it possible to advance and retract the said support base.

The support base is supported by a piston rod connected to the piston of the piston cylinder. When the cylinder is actuated, the prop support base retracts along the slide direction of the piston with respect to the cylinder. When linking the telescopic boom to the support member, the support base is advanced toward the support member. Thereby, since the forge arm is positioned at a position where the strut member can be held, as described above, the forge arm is swung to hold the strut member, and the strut member is tightened by the strut tightening means.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on invention of Claim 3 WHEREIN: The said arm swing means consists of the piston cylinder mechanism arrange | positioned at the said support base, The slide of the said piston is carried out. The oscillating motion is converted to the rocking motion, and the forge arm is rocked by the rocking motion.

For example, when the input arm fixed to the rotating shaft is swung by the slide of the piston, the rotating shaft is rotated. By connecting the proximal end of the forge arm to this rotation shaft, the forge arm swings by the rotation of the rotation shaft. For this reason, the slide direction of the said piston can be set to arbitrary directions, for example, let the slide direction of a piston be a direction which cross | intersects the advance direction of the said support base.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on invention of Claim 4 respond | corresponds to the said pair of forge arms, and forms the pair of strip | belt-shaped body provided with flexibility, And a holding means for fastening the belt-shaped body to be detachable from the forge arm, and allowing the clamping means for locking the tip portions of the belt-shaped body to be detachable from each other, and associating an appropriate location of the belt-shaped body with the forge arm. When the belt-shaped body is reduced in diameter, support means for allowing the belt-shaped body to be spaced apart from the forge arm is provided, and the belt-shaped body is pulled to the base end of the belt-shaped body to be reduced in diameter, the tension state is opened, and the belt-shaped body is opened. The pair of belt-shaped bodies by engaging the opening and closing means for expanding the holding means and engaging the holding means for fastening means. Connection and, by operating the opening and closing unit by pulling the band-shaped body by leaving the band-like body from the holding arm and is characterized in that the pole members by tightening the shaft diameter.

In addition, the said appropriate location means that there is no part which strip | belt-shaped body unexpectedly falls out of a forge arm, and that a strip-shaped body can remove | deviate from a forge arm smoothly, and a telescopic boom is supported by this extension boom support apparatus. It changes also with the diameter of the support member etc. which are supported.

When the forge arm is swung to bring the strut member into a state, the strut tightening means locking means is engaged. For example, by contacting the distal end of the forge arm, the hook member disposed on the distal end of one forge arm and elastically urged to swing in one direction by a restoring force such as a spring, swings against the restoring force of a spring, etc. A mechanism such as engaging with a hook supporting member disposed at the distal end of the forge arm can be employed. When the holding means is engaged and the opening and closing means is operated to pull out the belt-like member, the belt-like member is closed and reduced in diameter, so that the belt-like member tightens the support member.

In order to disengage the forge arm, the opening and closing means is operated to extend the belt-like body in the opening direction, that is, in diameter. Then, for example, one forge arm is rocked prior to the other forge arm, so that the hook member is swinged against the restoring force of the spring and the like so as to detach from the hook support member. As a result, engagement between the tip portions of the belt-shaped body and the forge arm is released, and these can be opened to release the elastic boom from the support member.

Further, the expansion and contraction mechanism of the expansion and contraction boom of the construction crane according to the invention of claim 5 is formed by a pair of roller chains having bent portions that can be bent in a plurality of places, corresponding to the pair of forge arms. And a support clamping means for securing the roller chain to the forge arm and disengaging the leading ends of the roller chain, and linking the appropriate position of the roller chain with the forge arm. And support means for allowing the roller chain to be spaced apart from the forge arm when the roller chain is reduced in diameter, and at the proximal end of the roller chain, the roller chain is pulled out to reduce the diameter, and the tension is opened to open the roller chain. The pair of rolls by engaging the opening and closing means for expanding the holding means and engaging the holding means for locking; The roller chain is connected, the opening and closing means are actuated to pull the roller chain, and the roller chain is detached from the forge arm to reduce the diameter so that the holding member is tightened.

In addition, the said suitable location means the part which a roller chain does not unexpectedly fall out of a forge arm, and the roller chain can remove | separate from a forge arm smoothly, and it is a telescopic boom with the support apparatus of this expansion boom. It is also changed according to the diameter of the strut member etc. which hold | maintains.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on the invention of Claim 6 WHEREIN: The said support means WHEREIN: The said holding fastening means is engaged with the forge arm from the state which detached from the said forge arm. It is characterized by including a strut tightening means restoring means for elastically pressing the strut tightening means in the direction of expanding the diameter so as to return to.

By actuating the opening and closing means in the direction of expanding the prop tightening means, it is possible to release the tightening of the strut member in the prop tightening means and return to the position engaged with the forge arm. The restoring force by the means makes it possible to smoothly perform the return operation of the prop tightening means. In other words, when the state in which the support member is tightened by the support tightening means is released by the opening / closing means, the support tightening means is enlarged by the restoring force by the support tightening means restoring means, and is engaged with the forge arm.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on 7th invention is the guide cylinder by which the said support means was rocked | supported by the said forge arm, and the guide cylinder which is guided and moves. The roller chain is provided with a slide rod, a support member pressure plate is provided at the tip of the slide rod, a return spring is provided in the guide cylinder, and the restoring force is engaged with the forge arm in the direction of the restoring force. It is characterized by being in the direction of expanding diameter.

When the roller chain is moved in the closing direction by the opening / closing means and reduced in diameter, the guide cylinder is guided and moved by moving the slide rod while swinging with respect to the forge arm to advance in the direction protruding from the guide cylinder. For this reason, the roller chain is allowed to shrink, and the support member pressure plate is pressed against the support member. At this time, the slide rod guided and moved by the guide cylinder moves forward with resistance to the restoring force of the return spring. Moreover, as a return spring, springs, such as a compression coil spring, a tension coil spring, and a torsion bar, can be used.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on 8th aspect of the invention is that the said support base is a base base with which the said attachment base was removably linked, and the base base of the expansion boom. It is characterized by consisting of a base neck portion which is rotatably supported with an axis parallel to the longitudinal direction and supported by the pair of forge arms.

Since the prop support base is moved forward and backward with respect to the attachment base, the advancing direction may be a convenient direction from the direction connecting the axis of the telescopic boom and the axis of the support member, in which case the support member is connected to the pair of forge arms. Not centrally located, ie not face to face. For this reason, the direction of a pair of forge arms is adjusted by rotation of the said base neck part so that a support member may be located in the center part of these forge arms, and may face front. Since the bias amount is generally not large, for example, when the tip of the base neck portion is brought into contact with a strut member, the strut member is uniformly in contact with the edge of the tip by the pressing force at that time. The base neck portion may be rotated as necessary.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on invention of Claim 9 is formed in the shape which overlaps the front end surface of the said base neck part substantially with the external shape of a support member. .

When the portion of the tip end surface of the base neck portion contacts the wall surface of the strut member as the strut support base is advanced, the base neck portion is the base so that the tip end surface of the base portion overlaps with the outer shape of the strut member. It rotates about a base and rotation stops in the state which the front end surface and the external shape of the support member superimposed. In this state, a pair of forge arms face the front support member, and it becomes a state which can hold a support member with a pair of forge arms.

Moreover, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on Claim 10 has the buffer adjustment means which moderates the impact at the time of the front end surface and the support member contacting the front end surface of the said base neck part. It is arrange | positioned.

The prop base is advanced to alleviate the impact when its tip surface comes into contact with the wall surface of the strut member.

In addition, in the support device for the crane-mounted telescopic boom for construction of a tower structure according to the invention of claim ll, the base retracting means is connected to each of both ends of the base neck portion as a pair, and the retraction guide means is a pair. A pair of strut member sensors connected to each of both ends of the base base and detecting a strut member at the tip of the base neck portion, and according to a signal for detecting the strut member of the strut member sensor, It is characterized by performing operation control.

When the base advancing means is constituted by, for example, a pair of piston / cylinder mechanisms, the front end portions of the piston rods connected to the pistons are rotatably connected to both ends of the base neck portion. In addition, when the advance guide means is constituted by, for example, a mechanism for inserting the rod through the guide hole to guide the linear movement of the rod, the tip of the rod is connected to the base base. The base neck portion rotates with respect to the base base by varying the movement amount of the piston of the pair of piston-cylinder mechanisms. For this reason, when one support member sensor of the said support member sensor detects a support member, only the other base propagation means is operated until the other support member sensor detects a support member. As a result, the pair of strut members are detected by the pair of strut member sensors, and the base neck portion is in a state of facing the strut member in front, and the strut member is in a state positioned at the center of the pair of forge arms.

Since the amount of convenience between the support member and the telescopic boom is often small, as described above, when the support base is advanced and the tip end surface of the base neck portion is brought into contact with the support member and pressed, the base neck portion is made to be minute with respect to the base base. The strut member can be rotated to position the central portion of the pair of forge arms. However, when the amount of bias is large, it is necessary to press the base neck portion to the support member with a large force. At this time, when the bias amount is large, there is a fear that a force in an unexpected direction is applied to the strut member. Here, if the support member is detected by the support member sensor, and only the base retreat on the side where the support member sensor on which the support member sensor is not disposed is operated, and only the side where the support member sensor is disposed is advanced, the base neck portion By pivoting about the base base, the strut member can be positioned at the center of the forge arm.

In addition, in the column construction method of the columnar structure according to the present invention, in order to construct a column of the columnar structure whose top portion extends to a high position in the air, a plurality of strut members are stacked for construction. A method of constructing a columnar structure of a tower structure in which a crane is mounted on a telescopic boom, the crane is mounted while being suspended by a construction crane, and the telescopic boom is supported on the stacked props. The support member is installed using a subsidiary crane, and a telescopic boom support device for supporting the telescopic boom to the support member is attached using the subsidiary crane, and assisted in the standing of the telescopic boom by the subsidiary crane. The construction crane is placed on the tip of the telescopic boom by an auxiliary crane, and the construction crane By holding up the upper strut member from the second stage, while fixing the upper strut member to the lower strut member, repeating supporting the elastic boom by the elastic boom support device on the upper strut member It features.

As a telescopic boom support device which supports a telescopic boom to a strut member, when employing the mechanism by which a strut member is forged by the forge arm as mentioned above, for example, this telescopic boom support apparatus is attached to the telescopic boom. In this case, it may be difficult to carry the conveyance trolley of the extension boom to a construction site by traveling on a public road. For this reason, a telescopic boom support apparatus is attached to a telescopic boom in a construction site. In this attachment work, the telescopic boom support device needs to be suspended, which requires a crane. By this auxiliary crane, the lowermost member in the support member is standing up and installed. Moreover, since the telescopic boom with a telescopic boom support apparatus becomes large, there exists a possibility that it cannot operate smoothly in the standing apparatus with which it is equipped. For this reason, the auxiliary crane used in the attachment work of the said telescopic boom support apparatus is assisted in standing up of a telescopic boom. Moreover, a crane for construction is suspended and mounted on the front end of a telescopic boom using this auxiliary crane. At this time, the lowermost boom is supported by the elastic boom support device at the lowermost boom of the elastic boom. As a result, the expansion and contraction boom is brought into a stable state.

If the lowermost strut member is provided, the second strut member is stacked thereon. The post member of this 2nd stage is suspended by the said construction crane, and is piled up on the lowest support member. The lower end of the stacked second stage strut members is fixed to the upper end of the bottom strut member from the inner side with a bolt or a nut by an inward flange or the like.

The second stage boom supported by the second stage strut member fixed to the lowermost strut member is supported by the elastic boom support device. As a result, the expansion and contraction boom is brought into a stable state, and the support member of the third stage is suspended and stacked on the support member of the second stage. The strut member of the third stage is fixed to the strut member of the second stage, and the boom of the third stage of the telescopic boom is supported by the elastic boom support device on the strut member of the third stage.

The strut is constructed by repeating these series of operations each time the strut member is stacked.

According to the support device of the crane-mounted telescopic boom for construction of a tower structure according to the present invention, the telescopic boom is supported by holding the strut member with the pair of forge arms, and reducing the strut tightening means to tighten the strut member. Since the member can be supported by the member, the elastic boom can be reliably supported by the support member. The base retracting means, the arm swinging means, the opening / closing means and the like can be operated remotely, for example, by a mechanism operating by a hydraulic cylinder or the like.

Moreover, according to the supporting device of the crane-mounted telescopic boom for construction of the tower structure according to the invention of claim 2, the forge arm can be reliably positioned at a position where the strut member can be held with a simple structure. .

Further, according to the support device for the crane-mounted telescopic boom for construction of the tower structure according to the invention of claim 3, since the rocking motion of the forge arm can be performed using a hydraulic cylinder or the like, the forge arm can be reliably operated. The holding member can be reliably positioned.

Moreover, according to the supporting device of the crane-mounted telescopic boom for construction of the tower-shaped structure according to the invention of claim 4, the shaft diameter operation of the prop tightening means is performed by pulling the proximal end of the prop tightening means, so that the simple operation can be performed. This makes it easy to control by remote operation. Moreover, the holding member can be tightened reliably by adjusting the tensile force.

Moreover, according to the supporting device of the crane-mounted telescopic boom for construction of the tower-shaped structure according to the invention of claim 5, since the strut tightening means is constituted by a roller chain, the strut tightening means can be easily reduced in diameter, and A fastening means can be made firm and a support member can be tightened reliably.

Moreover, according to the supporting device of the crane-mounted telescopic boom for construction of the tower-shaped structure according to the invention of claim 6, since the restoring force of the tightening means restoring means is used when releasing the strut tightening means, the strut member is promptly used. The tension can be released to disengage the telescopic boom.

Moreover, according to the supporting device of the crane-mounted telescopic boom for construction of the tower structure according to the invention of claim 7, it can be reliably tightened by the strut tightening means without unexpectedly damaging the strut member.

Further, according to the support device for the crane-mounted telescopic boom for construction of the tower structure according to the invention of claim 8, the base neck portion can be reliably faced to the support member so that the support member can be positioned at the center of the forge limb. Even if the elastic boom and the support member are in a convenient state, the support member can be reliably held by the forge arm.

Further, according to the support device for the crane-mounted telescopic boom for construction of the tower structure according to the invention of claim 9, since the base neck portion can be faced to the support member by pressing the base neck portion to the support member, the forge arm The support member can be reliably positioned.

Moreover, according to the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on invention of Claim 10, when a strut member is located in the center part of a pair of forge arms, a strut member base is advanced and a base neck part is a strut member. By pressurizing Moreover, since advancement of the support base is performed by remote operation, there is a fear that the base neck portion is pressed against the support member by an unexpectedly large force. At this time, since the pressing force is alleviated by the buffer adjusting means, unexpected damage to the support member is prevented.

Moreover, according to the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on invention of Claim 11, an extension boom can be reliably supported by a support member. That is, even in the case of a large amount of convenience between the support member and the expansion boom, the support member can be reliably positioned at the center of the forge arm, so that the support member can be reliably positioned so that the extension boom can be reliably supported by the support member. Can be.

And according to the column construction method of the columnar structure which concerns on this invention, in order to build the prop | stretch extended to a high position like a windmill tower, a telescopic boom support apparatus can be attached to a telescopic boom at a construction site, and also Installation of the lowermost strut member constituting the can be easily performed. Since the expansion and contraction boom support device can be attached to the expansion and contraction boom at the construction site, when adopting the construction method while supporting the expansion and contraction boom equipped with the construction crane sequentially to the support member constituting the support by remote operation Even when the expansion and contraction boom support apparatus which supports | supports is enlarged, the conveyance trolley of the expansion and contraction boom support apparatus and the conveyance vehicle which mounted the expansion and contraction boom support apparatus can be carried to a construction site by carrying out on a public road. For this reason, while the construction period at the time of constructing a prop can be shortened, carrying in can be carried out and construction cost can be held down.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view explaining the structure of the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on this invention, and has shown the state which opens the forge arm.
Fig. 2 is a plan view for explaining the structure of the support device for the crane-mounted telescopic boom for construction of a tower-shaped structure according to the present invention, while closing the forge arm to position the support member and supporting the support member. It is shown.
It is a side view which shows the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on this invention, and is a state shown in FIG.
4 is a perspective view showing a part of an attachment base and a support base of a support device for a crane-mounted telescopic boom for construction of a tower structure according to the present invention, and shows a state in which the attachment base is fixed to the telescopic boom (a ) Shows a state in which the support base is retreating, and (b) shows a state in which the support base is moving forward.
Fig. 5 is a plan view showing one forge arm and shows a state before tightening the support member by the support tightening means.
Fig. 6 is a plan view showing one forge arm and shows a state in which the support member is tightened by the support tightening means.
7 is a side view of the forge arm.
FIG. 8 is a cross-sectional view taken along the line AA in FIG. 5.
It is a figure explaining the operation | movement of the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on this invention, and has shown the state before holding a strut member with a forge arm.
It is a figure explaining the operation | movement of the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on this invention, and has shown the state which closed the one forge arm and held the support member.
It is a figure explaining the operation | movement of the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on this invention, Comprising: The other forge arm is closed, and the state which hold | maintains a support member, (a) Denotes a state just before the other forge arm contacts the one forge arm, (b) shows a state in which the tip of the forge arm is in contact, and (c) shows a state in which the support member is tightened by the support tightening means. .
FIG. 12 illustrates the operation of closing the other forge arm shown in FIG. 11 in the order of (a), (b), and (c).
FIG. 13 illustrates the operation subsequent to the operation shown in FIG. 12 in the order of (d) and (e).
FIG. 14 illustrates operations subsequent to the operation shown in FIG. 13 in the order of (f) and (g).
Fig. 15 illustrates the operation of releasing the tightening of the strut member by the strut tightening member and detaching the forge arm from the strut member in the order of (a), (b), (c).
FIG. 16 illustrates operations subsequent to the operation shown in FIG. 15 in the order of (d) and (e).
FIG. 17 illustrates operations subsequent to the operation shown in FIG. 16 in the order of (f) and (g).
Fig. 18 is a side view of the vehicle in the case where the attachment base and the support base of the support device for the crane-mounted telescopic boom for construction of the tower structure according to the present invention are brought into the construction site of the tower structure by the vehicle. to be.
19 is a plan view of the transport vehicle illustrated in FIG. 18.
20 is a rear view of the transport vehicle shown in FIG. 18.
It is a side view of the vehicle at the time of bringing in the construction site of the tower structure by the vehicle the forge arm of the support apparatus of the crane mounting telescopic boom for construction of the tower structure which concerns on this invention.
FIG. 22 is a plan view of the transport vehicle shown in FIG. 21.
FIG. 23 is a view for explaining a procedure by the method for constructing a columnar structure according to the present invention, and for constructing a column on which a windmill for wind power generation is mounted while supporting the telescopic boom by a support device for a construction crane-mounted extension boom It is a figure explaining the order in order of (a), (b).
FIG. 24 is a diagram for explaining a sequence following the construction sequence shown in FIG. 23 in the order of (c) and (d).
FIG. 25: is a figure explaining the sequence following the construction sequence shown in FIG. 24, (e).
It is a figure explaining the sequence following the construction sequence shown in FIG. 25 in order of (f), (g).
FIG. 27 is a diagram illustrating a sequence following the construction sequence shown in FIG. 26 in the order of (h) and (i).
FIG. 28: is a figure explaining the sequence following the construction sequence shown in FIG. 27 in order of (j), (k).
It is a figure explaining the order following the construction order shown in FIG. 28 in order of (l) and (m).

Hereinafter, based on the preferred embodiment which is not shown, the support apparatus of the crane mounting telescopic boom for construction of the tower-shaped structure which concerns on this invention, and the support | pillar construction of the tower-shaped structure by supporting a telescopic boom by this support apparatus. The method will be described in detail.

1 to 3 show a structure of a support device for a crane-mounted telescopic boom for construction of a tower-shaped structure according to the present invention, and FIG. 1 is a state immediately before supporting the telescopic boom 1 to the support member 2. 2 is a plan view showing a supported state, and FIG. 3 is a side view.

The telescopic boom support device 3 includes an attachment base 5 attached to and fixed to the telescopic boom 1, a support base 6 supported on the attachment base 5 in a retractable manner, and The main body is composed of a forge arm 7 whose proximal end is rotatably supported by the support base 6.

The attachment base 5 is detachable to a pair of attachment brackets 1p provided on the circumferential surface of the elastic boom 1. This pair of mounting bracket 1p is arrange | positioned at the position of substantially 180 degrees. The attachment base 5 has a pair of base plate 5a in the position which pinches | interposes this attachment bracket 1p, and this base plate 5a is detachable to the attachment bracket 1p. A part of each said base board 5a protrudes outward, and the axial support part 5b is provided, and the axial support part 5b can oscillate in the vicinity of the base end of the base drive cylinder 5c as a base retraction means. Is supported. Hydraulic oil is supplied to this base drive cylinder 5c from the power cylinder 5d, and the piston rod 5e is slid.

In addition, a pair of slide rods 5f are slidably supported on the base plate 5a in a direction substantially parallel to each other as a forward and backward guide means. The base base 6a of the support base 6 is linked to the distal end of the pair of slide rods 5f.

The center part of the base neck part 6c is connected to the center part of the base base 6a so that rotation is possible about the axis 6b. The distal end of the piston rod 5e is rotatably associated with the base neck 6a side of the base neck portion 6c, that is, at both ends on the rear side. The rotating shaft 6d is arrange | positioned so that rotation is possible with respect to the base neck part 6c on the both sides of the base neck part 6c, and the base end part of the swinging arm 6e is fitted in this rotating shaft 6d. It is installed. In addition, the base 6b of the input arm 6f is fitted to the rotation shaft 6d, and the tip portion of the piston rod 7b of the arm drive cylinder 7a is used as the arm swing means at the tip end of the input arm 6f. It is linked. This arm drive cylinder 7a is provided in the base neck part 6c, and becomes the direction which cross | intersects the slide direction of the piston rod 7b with the slide direction of the said slide rod 5f.

The strut support surface 61 on the front surface of the base neck portion 6c, that is, the side facing the strut member 2, as described later, is a strut member 2 to which the base neck portion 6c should cooperate. It is formed in the shape which overlaps with the external shape of. Moreover, the damper 6g as an appropriate number of buffer adjustment means is provided in the support base 61, and the impact when this base neck part 6c contacts the support member 2 is mentioned later. To alleviate. In addition, a pair of strut member sensors 6h are provided at both ends of the strut support surface 61, and those strut member sensors 6h that are in contact with the strut member 2 by the advancement of the base neck portion 6c. It can be detected. Moreover, this post member sensor 6h receives the detection signal which detected the post member 2, adjusts the output of the said power cylinder 5d, and controls the forward operation of the base neck part 6c.

A forge arm 7R and a forge arm 7L are attached to each of the distal ends of the swing arm 6e, respectively. As shown in FIG. 2, these pair of forge arms 7R and 7L have the shape curved in circular arc shape so that the holding | maintenance member 2 can be held and held. Moreover, when the outer diameter dimension differs according to the position where the strut member 2 is piled up, it is formed in the arc shape of the curvature according to the outer diameter dimension of the strut member 2 to be held. The roller chains 8R and 8L as strut tightening means are arrange | positioned inside this forge arm 7R and 7L. Chain opening / closing cylinder 8a as opening / closing means is supported by the base end part of these roller chains 8R and 8L so that the base end part can be connected to the said rotation shaft 6d so that rotation is possible. In addition, although roller chains 8R and 8L were used as support clamping means which can be bent relatively freely, shaft diameter and diameter can be secured, sufficient strength can be secured, and clamping member 2 can be reliably secured. A strip | belt-shaped body etc. can also be used as long as it is a means which can reliably tighten the member 2.

5-8, the said forge arm 7R, the roller chain 8R, the arm drive cylinder 7a, etc. are shown, and FIG. 5 shows that the roller chain 8R is in a diameter-expanded state to the forge arm 7R. 6 shows a state in which the roller chain 8R is separated from the forge arm 7R in the shaft diameter state. 8 is sectional drawing cut along the AA line in FIG. In addition, the roller chain 8L and the forge arm 7L also have the same structure as the roller chain 8R and the forge arm 7R, but there is a portion having some other structure. The effect is explained in full detail, and the same part other than that is demonstrated as the forge arm 7 and the roller chain 8, abbreviate | omitting a subscript.

As shown in FIG. 8, the middle part of the forge arm 7 is formed by forming a pair of angular cylindrical arm main bodies 71 arranged up and down curved in an arc shape. 71) is connected. The hollow holding shaft 72 is fixed in the state which penetrated the upper and lower arm main bodies 71 in the appropriate position which this arm main body 71 opposed. The support cylinder 73 which comprises a support means is arrange | positioned in the position which these holding shafts 72 face, and the support shaft 73a provided in the vicinity of the neck part of this support cylinder 73 is attached to the said holding shaft 72. The support cylinder 73 is made to be rotatable about the holding shaft 72 being inserted. The support cylinder 73 is accommodated with the slide rod 73b so as to be able to move forward and backward. The support shaft 73a protrudes toward the outer side of the housing 73c, and a linear motion guide 73d for guiding the slide of the slide rod 73b is housed inside the housing 73c. A compression coil spring 73e, which is a return spring constituting the strut tightening means restoring means, is accommodated between the rear end wall of the housing 73c and the flange plate 73f attached to the rear end of the slider rod 73b. It is. That is, it is elastically pressurized so that the restoring force of this compression coil spring 73e may move to the direction which returns the slide rod 73b which protruded from the support cylinder 73 to the support cylinder 73. FIG. Moreover, the linking member 74 is attached to the front-end | tip part of the said slide rod 73b. The linking member 74 is provided with a connecting pin 74a whose axis is in a direction parallel to the axial direction of the support shaft 73a.

8, the roller chain 8 is arrange | positioned corresponding to each of the said pair of arm main bodies 71, and rotates by interposing the roller 81 between the pair of chain plates 82. As shown in FIG. Possibly supported. The roller 81 is in contact with the arm main body 71, and the roller 81 is capable of rolling the inner surface of the arm main body 71. A pressure plate 83 is attached to the chain plate 82 corresponding to the position where the support cylinder 73 is disposed as a support member pressure plate. In addition, a cushioning material such as a rubber plate is attached to the pressing surface of the pressing plate 83. The fork-shaped connecting bracket 84 is fixed to the rear surface of the pressing plate, and the connecting pin 74a is rotatably supported by the connecting bracket 84. For this reason, the support cylinder 73 and the press plate 83 are linked through these connection pin 74a and the connection bracket 84. As shown in FIG.

As shown in FIGS. 5 and 6, 13, 14, 15, and 17, the fastening means is engaged on the roller chain 8R side at the distal ends of the roller chain 8R and the roller chain 8L. The hook member 85 constituting the means is provided on the roller chain 8L side with the hook member 85 constituting the tightening means by being detached from the hook member 85. These hook members 85 and the hook receiving members 86 are pivoted about the pivot shaft 85a and the pivot shaft 86a on which the proximal end portions are supported, so that the leading ends are separated from each other. In addition, the torsion coil springs 85c, which are wound on the swing shaft 85a and the swing shaft 86a, are installed on the hook member 85 and the hook support member 86 so as to swing them in the outward direction, respectively. The restoring force of 86c) is elastically pressurized. In addition, a stopper 85b and a stopper 86b are attached to the tip portions of the forge arms 7R and 7L. In the case where the roller chains 8R and 8L are in the enlarged diameter state, the hook member 85 and the hook supporting member 86 are in contact with each other, and the movement of the roller chain 8R and 8L in the outward direction is further inhibited. For example, as shown in FIG.13 (d), the hook member position sensor 85d and the hook support member which respectively detect that the hook member 85 and the hook support member 86 are in the engaged position are detected. It is preferable to provide the position sensor 86d and to detect that the hook member 85 and the hook support member 86 are in the engaged position. Moreover, it is also preferable to provide the arm position sensor 87 which detects that the forge arms 7L and 7R are located in the forge position which held the strut member 2, in order to make sure the operation mentioned later.

FIG. 18 and FIG. 22 show a conveying vehicle carrying this expansion and contraction boom support device 3 into the construction site of the windmill tower of the windmill for power generation. FIGS. 18 to 20 show the attachment base 5 and the support post. 21 and 22 show the transport vehicle 12 on which the base neck portion 6c and the forge arm 7 are mounted. FIG. 21 and FIG. 22 show the transport vehicle 12 on which the base base 6a of the support base 6 is mounted. have. In this way, the base base 6a of the attachment base 6 and the support base 6 is loaded in one transport vehicle, and the base neck portion 6c and the forge arm 7 are loaded in one transport vehicle. Therefore, it becomes possible for these conveyance vehicles to drive a public road to a construction site. In addition, although it shows in FIG. 18-FIG. 22 as conveying 5 expansion and contraction boom support apparatuses 3, when the expansion and contraction boom support apparatus 3 required according to the height of a windmill tower and the number of stages of an expansion and contraction boom increases, conveyance is carried out. It can respond by increasing the number of vehicles. Moreover, the base neck part 6c and the forge arm 7 can also be disassembled and conveyed as needed.

The construction procedure by the strut construction method at the time of constructing a windmill tower using the expansion-and-boom boom support apparatus 3 comprised by the above is demonstrated with reference to FIGS. 23-29.

The telescopic boom support device 3 and the forge arm 7 are carried in to the construction site of a windmill tower by the said conveying vehicle 11 and the conveying vehicle 12, respectively. Moreover, the support member 2 is also carried in to a construction site, and the expansion-and-boom boom 1 is also carried in by the conveyance cart 13. In addition, in the construction of the windmill tower, the auxiliary crane 14 for installing the support member 2a of the 1st step | shaft which becomes the lowest part is also carried in.

As shown to Fig.23 (a), the support | pillar member 2a of a 1st step | paragraph is provided using the auxiliary crane 14. As shown to FIG. Subsequently, as shown in FIG. 24 (c), the attachment base 5, the support base 6, and the forge arm 7 mounted on the transport vehicle 12 are transported. The auxiliary crane 14 is attached to the telescopic boom 1 attached to the cart 13. That is, by attaching the attachment base 5 to the attachment bracket 1p of the elastic boom 1, the base base 6a of the attachment base 5 and the support base 6 is attached to the expansion boom 1. do. When the base neck part 6c is connected to the base base 6a by the shaft 6b, and the front end of the said piston rod 5e is connected to both ends of the base neck part 6c, respectively, an elastic boom support apparatus ( 3) is attached to the expansion and contraction boom 1. Moreover, since the telescopic boom 1 is what is called telescopic system and the outer diameter dimension of each stage differs, the telescopic boom 1 attaches the telescopic boom support apparatus 3 according to the telescopic boom 1 of each stage. In addition, the size of the outer diameter of the support member 2 to be supported by the attached telescopic boom support device 3 also corresponds to the size of the forge in the forge arm 7 of the telescopic boom support device 3.

Subsequently, as shown in FIG. 24 (d), the expansion and contraction boom 1 with the extension and extension boom support device 3 is stood up to an appropriate angle on the conveyance trolley 13 using the auxiliary crane 14. Then, it stands up to almost vertical state with the boom standing cylinder provided in this conveyance trolley | bogie 13. Then, as shown in FIG. In this state, the boom 1a is supported by the support member 2a of the 1st stage by the expansion and contraction boom support apparatus 3 attached to the boom 1a of the 1st stage of the expansion and contraction boom 1.

Here, the operation | movement which supports the boom 1a of the 1st stage of the expansion and contraction boom 1 with the expansion and contraction boom support apparatus 3 to the support member 2a of the 1st stage is demonstrated.

As shown in FIG. 1, the forge arms 7R and 7L are in the extended state. In this state, the power cylinder 5d is operated to advance the prop support base 6 with respect to the attachment base 5, and the prop support base 6 approaches the prop member 2a of the first stage. Let's do it. At this time, the base neck part 6c is pressurized by the piston rod 5e of the base drive cylinder 5c, and the face base 6a is accompanying the base neck part 6c, and the said slide rod 5f is carried out. Will be guided forward.

By the advancing of the base neck part 6c, the said post member sensor 6h arrange | positioned at the both ends of the support base 61 contacts the outer peripheral surface of the support member 2a, and the support member 2a Detects the presence of. At this time, when the post member sensor 6h at both ends detects the post member 2a at the same time, the post member 2a is located almost at the center of the forge arms 7R and 7L on which the post member 2a is extended to face each other. On the other hand, when the support member 2a is detected only by one of the support member sensors 6h, the base neck portion 6c does not face the support member 2a in front, and thus the support member 2a is not supported. The power cylinder 5d on the same side as the end where the detected post member sensor 6h is disposed is stopped and the operation of the power cylinder 5d on the opposite side is continued. Thereby, while the base neck part 6c rotates about the base 6a centering on the axis 6b, the side in which the post member sensor 6h which does not detect the post member 2a is arrange | positioned at that time. This advances. When this strut member sensor 6h detects the strut member 2a by this advance, the power cylinder 5d is stopped and advancement of the piston rod 5e is stopped. In this state, since the support base 61 is in a state facing the support member 2a in front, the power cylinder 5d is operated again to advance the base neck portion 6c. As shown in FIG. 1, when the damper 6g also received in the support base 61 contacts the support member 2a, the power cylinder 5d is stopped. In addition, as shown in FIG. 1, the power cylinder 5d may be stopped in a state where the post member sensor 6h is pressed and pushed onto the post supporting surface 61.

As shown in FIG. 9, when the support base surface 61 of the base neck part 6c is pressed against the support member 2a, the support member 2a is held by the forge arm 7. This operation will be described with reference to FIGS. 10 to 14. As shown in FIG. 10, first, the forge arm 7L in which the said hook support member 86 is arrange | positioned is rocked, and the support member 2a is held only by the forge arm 7L. Subsequently, as shown in Fig. 11A, the forge arm 7R on which the hook member 85 is disposed is rocked to hold the support member 2a. Fig. 11 (a) shows a state immediately before the forge arm 7R holds the post member 2a, and the tip portions of the forge arms 7L and 7R at this time are shown in Fig. 12 (a). As shown in FIG. 12 (b) from this state, when the front end of the forge arm 7R approaches the front end of the forge arm 7L, as shown in FIG. 12 (c), the hook member 85 is shown. ) Contacts the hook support member 86. In addition, the swing of the forge arm 7R causes the hook member 85 to be positioned beyond the hook support member 86 so that they can be engaged as shown in FIG. 13 (d). In this state, the chain opening and closing cylinder 8a is operated, and the roller chains 8L and 8R are pulled to the chain opening and closing cylinder 8a. For this reason, as shown in FIG.13 (e), the said hook member 85 is engaged with the hook support member 86, and as shown in FIG.14 (f), the roller chain 8L and the roller chain ( 8R) is integrated.

If the roller chains 8L and 8R are pulled by the operation of the chain opening and closing cylinder 8a while the hook member 85 and the hook supporting member 86 are engaged, these roller chains 8L and 8R As shown in Fig. 14G, the diameter is reduced. By this shaft diameter operation, the pressure plate 83 attached to the roller chains 8L and 8R is pressed against the main wall surface of the support member 2a, and the roller chain 8 tightens the support member 2a. For this reason, the 1st extension boom support device 3 provided with this roller chain 8 is being fixed to the said support member 2a, and the attachment base 5 of this extension boom support device 3 is attached. The boom 1a of the cross section is supported by the support member 2a.

By the way, when the roller chain 8 is reduced in diameter, the slide rod 73b connected to the pressure plate 83 provided in the roller chain 8 by the connecting pin 74a is the compression coil spring 73e. It is withdrawn and resists restoring force, and slides in the support cylinder 73 to advance. In addition, since the support cylinder 73 is supported by the arm main body 71 so as to be rotatable by the support shaft 73a, swinging of the support cylinder 73 is allowed, and the slide rod 73b can be smoothly advanced. have. That is, the press plate 83 is guided and moved by the slide rod 73b, and is pressed by the holding member 2a reliably.

Fig. 25 (e) shows a state where the boom 1a of the first stage of the expansion and contraction boom 1 is supported by the support member 2a of the first stage, and is a jib crane which is a construction crane separately carried in this state. (15) is mounted on the tip of the telescopic boom 1 using the auxiliary crane 14, and supported. Next, as shown to FIG. 26 (f), the boom 1b of the 2nd stage of the expansion-and-contraction boom 1 is extended | stretched. In addition, a guy rope 15a extends and is provided on the conveyance trolley 13 of the jib crane 15 and the telescopic boom 1 to balance the direction and inclination of the jib crane 15. have.

When the boom 1b of the 2nd stage of the telescopic boom 1 is extended | stretched, as shown to FIG. 26 (g), the support member 2b of the 2nd stage of the 2nd stage is used for the 1st stage using the said jib crane 15. FIG. It mounts on the stage support member 2a. These strut members 2a and 2b are provided with an inward flange not shown in the inside, and tighten the inward flange at the top of the strut member 2a and the inward flange at the bottom of the strut member 2b with bolts and nuts, The post member 2b of a 2nd step | paragraph is fixed to the support member 2a of a 1st step | paragraph. Subsequently, similarly to the operation described above, the boom 1b is supported by the support member 2b of the second stage by the elastic boom support device 3 provided in the boom lb of the second stage. Thereby, each of the booms 1a and 1b of the 1st stage and the 2nd stage of the expansion | stretching boom 1 will be in the state supported by each of the support members 2a and 2b of the 1st stage and the 2nd stage. .

27-29, the boom extended by the jib crane 15 is piled up on the support member which already installed the support member, and the extension-boom of the expansion-boom boom 1 is extended | stretched. By repeating the operation of supporting the uppermost support member 2e sequentially, the windmill tower 20 is completed as shown in Fig. 29 (m), and the windmill tower 20 is driven by the jib crane 15. Nacelle 21 is placed on top of the). Moreover, the blade which is not shown in figure is suspended by the jib crane 15, and is installed.

When construction of the windmill tower 20 is completed, the expansion and contraction boom 1 is contracted and removed. The contracting operation of this telescopic boom 1 will be described below.

15 and 17 illustrate an operation of releasing the clamping of the support member 2. Fig. 15A shows a state in which the support member 2 is tightened by the roller chain 8, and is in the same state as the state shown in Fig. 14G. In this state, the chain opening / closing cylinder 8a is operated to retract the roller chain 8 to be enlarged. As a result, the roller chain 8 is expanded, and as shown in Fig. 15B, the tightening of the strut member 2 is released. In addition, when the chain opening / closing cylinder 8a is operated to further expand the roller chain 8, as shown in FIG. 15C, the bacterium member 86 contacts the stopper 86b. The roller chain 8L cannot be expanded any further. On the other hand, the roller chain 8R is slightly enlarged even after the diameter of the roller chain 8L is blocked, and comes into contact with the stopper 85b. In this state, when the chain opening / closing cylinder 8a is operated in a direction in which the roller chain 8 is further enlarged, the roller chain 8 is restrained by the stoppers 85b and 86b, so that the holding member 2 It moves in the direction along the circumferential direction, and, as shown in FIG.15 (c), the hook member 85 moves so that engagement with the hook support member 86 may be released by the movement of this direction. Further, when the roller chain 8 is moved in the direction, the main body of the hook member 85 is pressed against the hook support member 86, whereby the hook support member 86 is reduced in diameter around the swing shaft 86a. By swinging to the side, the engagement of the hook member 85 and the hook receiving member 86 is released. In addition, since these restoring force of the torsion coil springs 85c and 86c is elastically pressurized so that they may swing outward by the restoring force of the torsion coil springs 85c and 86c, as shown in FIG. Likewise, the hook member 85 and the hook receiving member 86 are kept in the released state.

Then, as shown in Fig. 16E, the forge arm 7R is swung to extend from the position where the support member 2 is held. As a result, as shown in FIGS. 17 (f) and 17 (g), when the forge arm 7R is enlarged and the forge arm 7L is expanded thereafter, the support member 2 by the forge arm 7 is obtained. ) Is released.

In the state where the forge arm 7 is extended, the base drive cylinder 5c is operated to retract the support base 6. As a result, the linkage between the expansion and contraction boom 1 and the support member 2 is released, and the expansion and contraction boom 1 is in a state capable of contracting.

The above-mentioned release operation is performed sequentially from the upper part of the expansion and contraction boom 1, so that the expansion and contraction boom 1 is contracted and the jib crane 15 is suspended by the auxiliary crane 14. It can be made into the state mounted on the conveyance trolley | bogie 13.

Subsequently, the telescopic boom support device 3 is removed from the telescopic boom 1 using the auxiliary crane 14, and is mounted on the conveyance trolley 11, and the telescopic boom 1 and the telescopic boom support device ( Export 3).

According to the crane-mounted telescopic boom support device for constructing the tower-shaped structure according to the present invention, the telescopic boom can be stabilized and supported by supporting the telescopic boom on the support of the tower-shaped structure to be constructed, and the jib crane of the telescopic boom can be supported. By mounting it, it becomes easy to extend | stretch and construct a support | pillar to a higher place than before, and carrying in by the vehicle of the support apparatus of a telescopic boom becomes easy, and can contribute to construction of a higher tower structure. In addition, since the new boom and the new boom support device can be carried into the construction site by a transport vehicle that can run on a public road, it can contribute to shortening the construction work period of the prop and reducing the cost.

1: Extension Boom 1a: Boom of First Step
1b: Boom of second stage 1c: Boom of third stage
ld: Boom of fourth stage 1e: Boom of fifth stage
1P: mounting bracket 2: holding member
2a: Shoring member of 1st step 2b: Shoring member of 2nd step
2c: Shoring member of the third stage 2d: Shoring member of the fourth stage
2e: Shoring member of the fifth step 3: Supporting device of the telescopic boom
5: attachment base
5c: base drive cylinder (base retraction means)
5e: piston rod 5f: slide rod (retraction guide means)
6: holding base 6a: base base
6b: shaft 6c: base neck portion
6g: damper (buffer adjusting means) 6h: prop member sensor
61: support base 7, 7R, 7L: forge arm
7a: arm drive cylinder (arm swing means)
7b: piston rod 71: arm main body
72: holding shaft 73: support cylinder (support means)
73a: support shaft 73b: slide rod
73c: housing 73d: flange plate
73e: compression coil spring (tightening means restoring means)
74: linking member 74a: connecting pin
8, 8R, 8L: Roller chain (holder fastening means)
8a: chain opening and closing cylinder (opening and closing means) 81: roller
82: chain plate 83: pressure plate
84: connection bracket
85: hook member (fastening means locking means)
85a: rocking shaft 85b: stopper
85c: Torsion Coil Spring
86: hook support member (fastening means locking means)
86a: rocking shaft
86b: stopper 86c: torsion coil spring
11: conveying vehicle 12: conveying vehicle
13: conveying bogie 14: auxiliary crane
15: Jib crane (construction crane) 15a: Guy rope
20: windmill tower

Claims (12)

In order to build a plurality of strut members by stacking a strut of a tower-shaped structure in which the top portion is extended to a high position above the air, a construction crane for hanging the strut member is mounted and stretched according to the stacking height of the strut member. In the support device for a crane mounting telescopic boom for construction of a tower structure for supporting a telescopic boom for raising the construction crane,
An attachment base fixed to the telescopic boom;
A prop support base retractable to the attachment base,
A pair of forge in which the proximal end is rotatably supported on the support base, with an axis parallel to the axial direction of the support, from an open position for opening the support member to a forge position for holding the support member. Arm,
A support shaft tightening means that can be further reduced in diameter than the forge arm at the forge position provided inside the pair of forge arms;
Base retracting means for advancing and retracting the support base;
Arm rocking means for rocking the forge arm,
A support device for a crane-mounted telescopic boom for building a tower-shaped structure, characterized by comprising an opening and closing means for reducing the prop tightening means by closing the shaft and closing and expanding the shaft from the reduced diameter. The method according to claim 1,
The base retracting means consists of a pair of piston-cylinder mechanisms fixed to the attachment base, and makes the slide direction of the pair of pistons substantially parallel to the direction crossing the longitudinal direction of the telescopic boom, wherein the support base A support device for a crane-mounted telescopic boom for construction of a tower-shaped structure, characterized by comprising a retreat guide means for guiding the retreat. The method according to claim 1 or 2,
The arm swing means comprises a piston-cylinder mechanism provided on the support base, converts the slide of the piston into a swing motion, and swings the forge arm by the swing motion. Device for telescopic crane boom for construction of cranes. The method according to any one of claims 1 to 3,
The support clamping means is made to correspond to the pair of forge arms to form a pair of band-shaped bodies having flexibility,
The strip is detachable to the forge arm,
Providing a support clamping means locking means for allowing the tip portions of the belt-shaped body to be separated from each other;
In addition to associating an appropriate location of the strip with the forge arm, supporting means for allowing the strip to be spaced apart from the forge arm when the strip is reduced in diameter,
At the base end of the belt-shaped body, the belt-shaped body is pulled down and reduced in diameter, and the opening and closing means for opening the tensioned state to enlarge the belt-shaped body is connected.
A tower-shaped structure characterized by fastening a strut member by engaging the strut tightening means to engage a pair of strip-shaped bodies, and actuating the opening / closing means to pull the strip-shaped body away from the holding arm to reduce the diameter. Device for telescopic crane boom for construction of cranes. The method according to any one of claims 1 to 3,
The support clamping means is formed in a pair of roller chains having a bent portion that can be bent at a plurality of positions, corresponding to the pair of forge arms,
Make the roller chain detachable with respect to the forge arm,
Install a prop tightening means engaging means for allowing the leading ends of the roller chains to be detached from each other;
In addition to associating an appropriate location of the roller chain with the forge arm, supporting means for allowing the roller chain to be spaced apart from the forge arm when the roller chain is reduced in diameter,
At the proximal end of the roller chain, the roller chain is pulled down and reduced in diameter, and the opening and closing means for opening the tensioned state to enlarge the roller chain is engaged.
A tower-shaped structure characterized by fastening the strut member by engaging the strut tightening means engaging means to connect a pair of roller chains, and actuating the opening and closing means to pull the roller chain out of the forge arm to reduce the diameter. Device for telescopic crane boom for construction of cranes. The method according to claim 4 or 5,
The support means includes a support tightening means restoring means for elastically pressurizing the support tightening means in a direction in which the support tightening means is extended so as to return the support tightening means from the state separated from the forge arm to the engaged state with the forge arm. A support device for a crane-mounted telescopic boom for construction of a tower-shaped structure, characterized in that. The method according to claim 5 or 6,
The support means includes a guide cylinder slidably supported by the forge arm, and a slide rod guided and moved by the guide cylinder,
A support member pressing plate is provided at the tip of the slide rod,
The guide cylinder is provided with a return spring, and the direction of the restoring force is set to the direction in which the roller chain is enlarged so as to engage the support member pressure plate with the forge arm. Device for telescopic boom. The method according to any one of claims 1 to 7,
The support base is rotatably supported on a base base that is retractably linked to the attachment base and on the base base in a direction parallel to the longitudinal direction of the telescopic boom, and supports the pair of forge arms. A support device for a crane boom for mounting a crane for construction of a tower-shaped structure, characterized by comprising a base neck portion. The method according to claim 8,
The tip end surface of the said base neck part is formed in the shape which almost overlaps with the external shape of a support member, The support apparatus of the crane mounting telescopic boom for construction of a tower-shaped structure. The method according to claim 8 or 9,
A support device for a crane-mounted telescopic boom for mounting a tower structure, characterized in that buffer adjustment means for alleviating the impact of the tip end surface and the strut member upon contact is disposed on the tip surface of the base neck portion. The method according to any one of claims 8 to 10,
The base retracting means are connected to each of both ends of the base neck portion as a pair, and the retreating guide means are connected to each of both ends of the base base as a pair, and a pair of struts for detecting the strut member at the tip of the base neck portion. And a member sensor and controlling the operation of the pair of base retracting means in accordance with a signal for detecting the holding member of the holding member sensor. In order to build up a plurality of strut members by building a strut of a tower-shaped structure in which the top portion is extended to a high position above the air, a construction crane for hanging the strut member is mounted on a telescopic boom, and the strut member is used as the construction crane. In the construction method of the columnar structure of the tower-shaped structure which piles up while hanging up and supports the expansion-and-boom to the piled-up props,
The lowermost strut member of the said strut member is installed using an auxiliary crane,
The expansion and contraction boom support device which supports the expansion and contraction boom to a support member is attached using the said auxiliary crane,
Assist the standing crane of the extension boom by the auxiliary crane,
The construction crane is placed on the tip of the telescopic boom by the auxiliary crane,
While holding the upper strut member from the second stage by the construction crane, the upper strut member is fixed to the lower strut member, and the telescopic boom is supported by the elastic boom support device on the upper strut member. A method of constructing a strut of a tower-shaped structure, characterized by repeating.

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