JP3815756B2 - Temporary elevator for fistula and its transportation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary elevator for a fistula used for transporting a worker in a hole in excavation formation of a deep hole for deep foundation piles, etc., and a transportation method for the temporary elevator, particularly transportation on a public road. The present invention relates to a temporary elevator for a fistula and a method for transporting the temporary elevator for a fistula so that the height can be easily folded within a limit size range.
[0002]
[Prior art]
Conventionally, a deep foundation pile is constructed by placing a hole in the ground and placing concrete in the hole to place concrete in the hole.
There are two types of drilling formation methods: manual digging and mechanical digging. Currently, many methods using mechanical digging are adopted because of the speed and safety of construction. . For example, a hydraulic excavator attached with a deep digging clamshell attachment is used for the mechanical excavation. At the same time as excavating the machine, an operator lifting equipment for work in the hole is constructed in the hole.
[0003]
This worker elevating equipment has a ladder road with a ladder on the hole wall side and a temporary elevator, and the temporary elevator has a rail fixed with a guide rail attached to the hole wall side to raise and lower the cage along the guide rail. There are two types, one is a rope guide type, and the other is a rope guide type in which a cage is installed at the hole opening and the cage is lifted by a rope suspended from the frame.
However, such a worker lifting / lowering equipment becomes an obstacle when moving the excavating machine, and the efficiency of excavation work is reduced. In particular, when the pile diameter is 3 m or less, there is a problem that the excavating machine does not enter because of the lifting mechanism of the worker, and it is necessary to dig by hand.
[0004]
Therefore, recently, a winch wire is suspended from a tower provided at the hole, and a cage is provided on the wire so that the cage is moved up and down by the winch. Temporary elevators that are movably installed on rails have been proposed. According to this temporary elevator, when excavating the machine, the cage is pulled up from the hole opening by the winch, and then the temporary elevator is withdrawn from the hole by separating the tower from the hole opening along the rail. Therefore, the above excavation problem can be solved.
[0005]
[Problems to be solved by the invention]
By the way, since many deep foundation piles are provided at the construction site, conventionally, one temporary elevator has been provided at each deep foundation pile construction site. However, since the temporary elevator does not have to be used during excavation as described above, there is a situation where the temporary elevator is idle during excavation work. As a result, there are drawbacks in that the inefficiency of construction and the cost increase occur. Therefore, it is conceivable to use one temporary elevator for multiple deep foundation pile construction sites.However, since the conventional temporary elevator is a stationary type, it requires a crane or the like for its moving installation. Mobile installation was difficult.
[0006]
Accordingly, Japanese Patent Application No. 7-251653 has been proposed as a miniaturization of the temporary elevator, but as shown in FIG. A suspension arm 3 bent so as to protrude from the suspension arm 3 is erected, and the suspension arm 3 is supported by two stays 4 and 4A. The suspension arm 3 is suspended by a wire 5 hung on the end of the suspension arm 3, and is not shown. A temporary elevator including a cage 6 guided by a guide rope and a main hoist winch 7 for raising and lowering the cage 6 on a rear winch support 8 is provided. The proposed temporary elevator has the bent suspension described above. Since the arm 3 is not lifted, there is a problem that the transportation on the public road is substantially impossible except that the arm 3 is disassembled with the height exceeding the limit size when it is transported on the public road. In the figure, reference numeral 9 denotes a boarding / alighting deck.
[0007]
The present invention has been made in view of the above circumstances, and when excavating and forming a hole for deep foundation piles or the like, it is possible to safely transport workers into the hole, and particularly when transporting on public roads. It is an object of the present invention to provide a fistula temporary elevator and a method for transporting the fistula temporary elevator that can be easily folded within a limit range of a general vehicle on a public road.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a suspension arm that bends a strut pivotally attached to a revolving body on a self-propelled crawler and projects an end portion forward, and a boarding deck is provided on the strut of the suspension arm. A supporting arm to be supported is fixed, and a hoisting machine base is pivotally attached to a rear portion of the supporting arm, and the supporting arm and the hoisting machine base are respectively attached to a suspension arm raising cylinder and a support column that are mounted on a rotating body. The cage supported by a hoisting machine support cylinder and suspended by a wire hung on the end of the suspension arm can be moved up and down by the hoisting machine on the hoisting machine stand. This is a temporary elevator for fistulas.
[0009]
In addition, a suspension arm bent on a swinging body on a self-propelled crawler is bent and its end is projected forward, and a support arm that supports the boarding deck is fixed to the suspension arm column, and the support A hoisting machine stand is pivotally attached to the rear part of the arm, and the support arm and hoisting machine stand are supported by a suspension arm raising cylinder mounted on a revolving body and a hoisting machine support cylinder mounted on the support column, respectively. When the cage suspended by the wire hung on the end of the suspension arm is transported to the temporary elevator for fistula that can be moved up and down by the hoisting machine on the hoisting machine stand, Operate the cylinder and the hoisting machine support cylinder to raise the suspension arm horizontally, and place the hoisting machine stand in a horizontal position with the cage on the low floor trailer. A vertical hole for temporary elevator transport method characterized by feeding.
[0010]
Furthermore, a support arm pivoted on a swinging body on a self-propelled crawler is bent to form a suspension arm with its end protruding forward, and a support arm that supports the boarding deck is fixed to the suspension arm support. A hoisting machine stand is pivotally attached to the rear part of the arm, and the support arm and hoisting machine stand are supported by a suspension arm raising cylinder mounted on a revolving body and a hoisting machine support cylinder mounted on the support column, respectively. The cage suspended by the wire hung on the end of the suspension arm can be moved up and down by the hoisting machine on the hoisting machine stand, and hung on the end of the suspension arm, A temporary elevator for a fistula, characterized in that the cage is guided by a guide rope provided with a weight so that the cage can be moved up and down.
[0011]
In addition, a suspension arm bent on a swinging body on a self-propelled crawler is bent and its end is projected forward, and a support arm that supports the boarding deck is fixed to the suspension arm column, and the support A hoisting machine stand is pivotally attached to the rear part of the arm, and the support arm and hoisting machine stand are supported by a suspension arm raising cylinder mounted on a revolving body and a hoisting machine support cylinder mounted on the support column, respectively. The cage suspended by the wire hung on the end of the suspension arm can be moved up and down by the hoisting machine on the hoisting machine stand, and hung on the end of the suspension arm, When transporting a temporary elevator for a fistula that can be moved up and down with the cage guided by a guide rope provided with a weight, the suspension arm lifting cylinder and the hoisting machine support cylinder are operated. The vertical arm is lifted horizontally, and the hoisting machine stand is also positioned horizontally, and is transported by being placed on a low floor trailer together with the cage and weight without removing the wire and the guide rope. It is the transportation method of the temporary elevator for fistulas.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. A temporary elevator for a fistula is a suspension arm that bends a column pivotally attached to a revolving body on a self-propelled crawler and projects an end portion forward, and the suspension A support arm that supports the landing deck is fixed to the support column of the arm, and a hoisting machine base is pivotally attached to the rear part of the supporting arm, and the suspension arm is mounted on the revolving body. A cage suspended by a wire hung on the end of the suspension arm is moved up and down by a hoisting machine on the hoisting machine stand, supported by a hoisting machine support cylinder mounted on the cylinder and the column. Since the cage is guided by a guide rope that is hung on the end of the suspension arm and provided with a weight at the lower end, the temporary elevator for the fistula is constructed. When transporting on public roads to a site for excavating boreholes for deep foundation piles, etc., the suspension arm is mounted between a swinging body on a self-propelled crawler and a support arm that supports a landing deck The hoisting cylinder is shrunk and the column and the suspension arm pivotally attached to the revolving body are rotated about the lower end of the column so that the suspension arm is horizontal, and a boarding / alighting deck supported by the support arm is provided. Simultaneously rotate and tilt.
Further, the hoisting machine support cylinder mounted between the revolving unit and the hoisting machine base is also shrunk so that the hoisting machine base pivotally attached to the rear part of the support arm is also in a horizontal state for transportation. It is loaded on a low-floor trailer, and the cage and weight are transported by being placed on the low-floor trailer together with the temporary fistula elevator without removing the wires and guide ropes.
[0013]
With this freight elevator temporary elevator transport method, the entire equipment of the fistula temporary elevator can be mounted and transported on a low-floor trailer while being assembled, and can be kept within the height limit dimensions of public roads. It is possible to transport on public roads to the site where the borehole is excavated.
Then, when reaching the site where excavation of the shaft for deep foundation piles, etc., the temporary elevator for the shaft is lowered from the low floor trailer together with the cage and the weight, and the suspension arm raising cylinder and the hoisting frame of the temporary elevator for the shaft are lifted. After the base support cylinder is extended to allow the suspension arm and hoisting machine base to be in a predetermined workable state, the temporary freight elevator moves to a predetermined position on the site where the crawler excites the fistula. At the same time, the entire temporary elevator is rotated by the revolving body and the tip of the suspension arm is positioned on the borehole to be excavated.
First, the weight is lowered by the guide rope hung on the end of the suspension arm, then the cage is guided by the guide rope stretched by the weight, and suspended by the wire hung on the end of the suspension arm. The cage can be safely lifted and lowered by the hoisting machine on the hoisting machine stand while being guided by the guide rope, and can be lifted and lowered by the hoisting machine on the hoisting machine stand. .
[0014]
【Example】
Embodiments of a temporary elevator for a fistula and a transportation method thereof according to the present invention will be described with reference to the drawings. FIG. 1 is a side view of the present embodiment, FIG. 2 is a plan view of the present embodiment, and FIG. 3 is a side view showing a state of being placed on a low floor trailer.
In the figure, the temporary elevator A for a fistula according to the present embodiment sandwiches the lower portion of a support column 14 by two flanges 15 provided on a revolving body 12 on a self-propelled crawler 11, and is pivotally attached to this by a pin 15A. The upper part of the support column 14 is bent and its end is projected forward, and a suspension arm 13 is formed. The support arm 17 that supports the boarding deck 16 is fixed to the support column 14 of the suspension arm 13. A hoisting machine base 18 is pivotally attached to the rear part by a pin 19. Further, the support arm 17 is supported by a suspension arm raising / lowering cylinder 21 pivotally attached to a bracket 20 attached to the revolving body 12, and one hoisting machine stand 18 is hoisted to a bracket 20 </ b> A attached to the column 14. Each is supported by a gantry support cylinder 22.
[0015]
On the other hand, the cage 25 suspended by the wire 24 hung on the pulley 23 at the end of the suspension arm 13 can be moved up and down by the hoisting machine 26 on the hoisting machine stand 18, and the suspension arm 13 A weight 28 suspended by a guide rope 29 hung on a pulley 27 at the end of the hoist can be moved up and down by a guide rope hoisting machine 26A on the hoisting machine stand 18, and a weight 28 is provided at the lower end. The cage 25 is guided by an attached guide rope 29 so that it can be moved up and down.
[0016]
Next, when transporting the temporary elevator for fistula A on a public road to a site for excavating a frethole for deep foundation piles, the revolving body 12 and the landing deck 16 on the self-propelled crawler 11 are supported. The suspension arm elevating cylinder 21 mounted between the support arm 17 and the suspension arm 13 is contracted by contracting the suspension arm raising cylinder 21 so that the suspension arm 13 is horizontal. When the pin 15A at the lower part of 14 is rotated, the boarding / alighting deck 16 supported by the support arm 17 simultaneously rotates and tilts.
Further, the hoisting machine support cylinder 22 mounted between the revolving body 12 and the hoisting machine support 18 is also contracted, and the hoisting machine support 18 pivotally attached to the rear part of the support arm 17 by the pin 19 is also provided. The cage 25 and the weight 28 were placed on the low floor trailer 30 together with the fistula temporary elevator A without removing the wire 24 and the guide rope 29. Then, the low floor trailer 30 is pulled by the tow truck 31 and transported to the excavation site.
[0017]
Therefore, in the method for transporting the temporary fistula elevator according to the present embodiment, the entire equipment of the temporary fridge elevator A can be mounted and transported on the low floor trailer 30 while being assembled, and the range of the height limit dimension of the public road Since it can be kept within (3.8m above the ground), it can be transported without disassembling on the public road to the site where the borehole is excavated.
Then, when reaching the site for excavating the borehole for deep foundation piles, the temporary elevator A for borehole is lowered from the low floor trailer 30 together with the cage 25 and the weight 28, and the suspension arm raising cylinder of the temporary elevator A for borehole is lowered. 21 and the hoisting machine support cylinder 22 are extended to bring the suspension arm 13 and the hoisting machine base 18 into a predetermined workable state, and then the temporary elevator A for fistula is self-propelled by the crawler 11. At the same time as moving the fistula to a predetermined position on the excavation site, the entire temporary elevator A is rotated by the revolving body 12 so that the tip of the suspension arm 13 is positioned on the excavation hole to be excavated.
[0018]
In this state, when the cage 25 and the weight 28 are positioned on the hole to be excavated, the guide rope hoisting machine 26A is driven and the weight 28 is moved by the guide rope 29 hung on the pulley 27 at the end of the suspension arm 13. After getting down into the fistula, the worker gets on the boarding / unloading deck 16 and extends the advancing / retreating cylinder 17A to bring the boarding / unloading deck 16 close to the cage 25. Then, the worker moves from the boarding / unloading deck 16 into the cage 25 The cage 25 on which this worker rides is driven by a hoisting machine 26 on the hoisting machine stand 18 and is guided by a guide rope 29 stretched by a weight 28, and the pulley at the end of the suspension arm 13. Since the wire 24 hung on 23 can be lowered into the hole or pulled up, the worker for the work in the hole can be lifted and lowered safely without rolling.
[0019]
【The invention's effect】
According to the present invention described above, a support arm pivotally attached to a swinging body on a self-propelled crawler is bent and the end portion is protruded forward, and the support for supporting the boarding / alighting deck is supported by the support arm. The arm is fixed, the hoisting machine base is pivotally attached to the rear part of the support arm, the suspension arm is mounted on the swing arm and the hoisting machine is attached to the support column. Since it is configured to be supported by the base support cylinder, when the temporary elevator for fistulas is transported on public roads to the site where excavations for deep foundation piles etc. are excavated, the suspension arm elevation cylinder is shrunk. The column and the suspension arm pivotally attached to the revolving structure are rotated so that the suspension arm is horizontal, and the boarding deck and the like supported by the support arm are simultaneously rotated and inclined, and the hoisting machine is further rotated. The hoisting machine stand pivoted to the rear of the support arm with the base support cylinder contracted is also leveled, and the low floor trailer is transported to the low floor trailer together with the temporary elevator for fistula without removing the cage wire. It can be placed and transported without any disassembly.
Therefore, according to the method for transporting a temporary fistula elevator according to the present invention, since the entire equipment of the temporary fistula elevator can be assembled and transported on a low-floor trailer, the efficiency and safety of the fistula excavation work can be improved. In addition, since there is no need for disassembly, there is no need for wiring or disconnection, and because it can be kept within the range of the height limit of ordinary vehicles on public roads, it can be maintained on the public road to the site where the borehole is excavated. It can be transported without being disassembled.
[0020]
In addition, even when the cage of the fistula temporary elevator is guided by the guide rope and moved up and down, the cage and the weight of the low floor trailer for transportation are lowered together with the fistula temporary elevator without removing the wire and the guide rope. It can be transported on a floor trailer.
Therefore, according to the method for transporting a temporary fistula elevator according to the present invention, since the entire equipment of the temporary fistula elevator can be assembled and transported on a low-floor trailer, the efficiency and safety of the fistula excavation work can be improved. In addition, since there is no need for disassembly, there is no need for wiring or disconnection, and because it can be kept within the range of the height limit of ordinary vehicles on public roads, it can be maintained on the public road to the site where the borehole is excavated. It can be transported without being disassembled.
[Brief description of the drawings]
FIG. 1 is a side view of the present embodiment.
FIG. 2 is a plan view of the present embodiment.
FIG. 3 is a side view showing a state in which the embodiment is placed on a low floor trailer.
FIG. 4 is a side view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Self-propelled crawler 12 Revolving body 13 Suspension arm 14 Strut 15 Flange 16 Entry / exit deck 17 Support arm 18 Hoisting machine stand 19 Pin 21 Suspension arm raising cylinder 22 Hoisting machine stand support cylinder 23,27 Pulley 24 Wire 25 Cage 26 Hoisting machine 26A Guide rope hoisting machine 28 Weight 29 Guide rope 30 Low floor trailer 31 Towing vehicle A Temporary elevator for pit

Claims (4)

A support arm pivoted on a swinging body on a self-propelled crawler is bent to form a suspension arm with its end protruding forward, and a support arm that supports the boarding deck is fixed to the suspension arm support. A hoisting machine base is pivotally attached to the rear part, and the supporting arm and the hoisting machine base are supported by a suspension arm raising cylinder attached to a revolving body and a hoisting machine base support cylinder attached to the column, respectively. A temporary elevator for a fistula, wherein a cage suspended by a wire hung on an end of a suspension arm can be moved up and down by a hoisting machine on the hoisting machine stand. A support arm pivoted on a swinging body on a self-propelled crawler is bent to form a suspension arm with its end protruding forward, and a support arm that supports the boarding deck is fixed to the suspension arm support. A hoisting machine base is pivotally attached to the rear part, and the supporting arm and the hoisting machine base are supported by a suspension arm raising cylinder attached to a revolving body and a hoisting machine base support cylinder attached to the column, respectively. When transporting a temporary elevator for a fistula in which a cage suspended by a wire hung on an end of a suspension arm can be moved up and down by a hoisting machine on the hoisting machine stand, Operate the hoisting machine support cylinder to raise and lower the suspension arm horizontally, and place the hoisting machine stand in a horizontal position on the low floor trailer together with the cage for transportation. Vertical holes for temporary elevator transport method wherein the. A support arm pivoted on a swinging body on a self-propelled crawler is bent to form a suspension arm with its end protruding forward, and a support arm that supports the boarding deck is fixed to the suspension arm support. A hoisting machine base is pivotally attached to the rear part, and the supporting arm and the hoisting machine base are supported by a suspension arm raising cylinder attached to a revolving body and a hoisting machine base support cylinder attached to the column, respectively. The cage suspended by the wire hung on the end of the suspension arm can be moved up and down by the hoisting machine on the hoisting machine stand, and hung on the end of the suspension arm, and a weight is provided at the lower end. A temporary elevator for a fistula, characterized in that the cage is guided by a provided guide rope and can be moved up and down. A support arm pivoted on a swinging body on a self-propelled crawler is bent to form a suspension arm with its end protruding forward, and a support arm that supports the boarding deck is fixed to the suspension arm support. A hoisting machine base is pivotally attached to the rear part, and the supporting arm and the hoisting machine base are supported by a suspension arm raising cylinder attached to a revolving body and a hoisting machine base support cylinder attached to the column, respectively. The cage suspended by the wire hung on the end of the suspension arm can be moved up and down by the hoisting machine on the hoisting machine stand, and hung on the end of the suspension arm, and a weight is provided at the lower end. When transporting a temporary elevator for a fistula that can be moved up and down with the cage guided by a provided guide rope, the suspension arm lifting cylinder and the hoisting machine support cylinder are operated to operate the suspension arm. The hoisting machine is lifted horizontally, and the hoisting machine stand is also placed horizontally, and is transported by being placed on a low-floor trailer together with the cage and weight without removing the wire and the guide rope. To transport a temporary elevator for a fistula.

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