JP2024070528A - How to disassemble a crawler crane, Crawler crane - Google Patents

Abstract

[Problem] To provide a disassembly method for a crawler crane and a crawler crane that can reduce the burden on workers, etc. [Solution] In a crawler crane 1, a machine base frame 4 is provided with a cylinder stand 7 on which a hoisting cylinder 43 with the other end detached from a boom 61 can be placed, with a boom device 6 attached to the machine base frame 4, the wire rope W is removed from the boom 61, a socket attachment part 3 is attached to the hoisting cylinder 43, and with the wire rope W slackened by a winch 42, a shared wire socket 12 is attached to the socket attachment part 3, after which, with the wire rope W tensioned by the winch 42, the hoisting cylinder 43 is removed from the boom 61, and the wire rope W is slackened by the winch 42, and the hoisting cylinder 43 is placed on the cylinder stand 7. [Selected Figure] Fig. 23

Description

The present invention relates to a method for disassembling a crawler crane that can be assembled and disassembled, and to the crawler crane itself.

An example of a crawler crane that can be assembled and disassembled is the crawler crane with the configuration disclosed in Patent Document 1. The crawler crane disclosed in Patent Document 1 is equipped with a running section, a machine frame, a boom device, and an outrigger device. When used at a construction site in the mountains or elsewhere where there are no access roads, it is disassembled into the running section, machine frame, boom device, and outrigger device, and transported to the construction site by helicopter or the like.

Patent No. 4263301

In the configuration disclosed in Patent Document 1, when disassembling the boom device, the boom raising and lowering cylinder, which is provided on the base frame and which raises and lowers the boom of the boom device, must be placed on sleepers or the like placed on the base frame, which increases the burden on workers and other personnel.
In view of the above-mentioned problems, an object of the present invention is to provide a method for disassembling a crawler crane and a crawler crane that can reduce the burden on workers, etc.

A method for disassembling a crawler crane according to one aspect of the present invention is a method for disassembling a crawler crane that includes a traveling section, a machine base frame, a boom device, and an outrigger device and that can be disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device, and disassembles the machine base frame and the boom device. The traveling section has a crawler unit for traveling and a drive device for driving the crawler unit. The machine base frame is disposed on the traveling section, and the base end of the column is attached to the upper surface so as to be freely rotatable. The boom device is attached to the tip of the column. The outrigger device can be attached and detached to the machine base frame. The boom device includes a boom that can be raised and lowered relative to the column, and a hook that has a base end fixed to a winch provided on the column and is attached to the tip of a wire rope that protrudes from the boom. The hook also includes a hook main body that holds an object to be loaded and a shared wire socket that is attached to the tip of the wire rope and can connect the hook main body. The base frame also includes a hoisting cylinder, one end of which is connected to the column and the other end of which is attached to the boom to hoist the boom, and a cylinder stand that is disposed below the hoisting cylinder and on which the hoisting cylinder can be placed with the other end removed from the boom. The method for disassembling the crawler crane includes the steps of removing the hook body from the shared wire socket while the boom device remains attached to the base frame, and removing the wire rope to which the shared wire socket is attached from the boom. In addition, the method includes the steps of attaching a socket mounting part to which the shared wire socket can be attached to the hoisting cylinder, and attaching the shared wire socket to the socket mounting part while the wire rope is slackened by a winch. The method further includes the steps of removing the hoisting cylinder from the boom while the wire rope is tensioned by a winch, and placing the hoisting cylinder on the cylinder stand while slackening the wire rope by a winch.

In addition, a method for disassembling a crawler crane according to one aspect of the present invention is a method for disassembling a crawler crane that includes a traveling section, a machine base frame, a boom device, and an outrigger device and that can be disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device, and disassembles the machine base frame and the boom device. The traveling section has a crawler unit for traveling and a drive device for driving the crawler unit. The machine base frame is disposed on the traveling section and has a base end of a column attached to the upper surface so as to be freely rotatable. The boom device is attached to the tip of the column. The outrigger device can be attached and detached to the machine base frame. The boom device includes a boom that can be raised and lowered relative to the column, a hook whose base end is fixed to a winch provided on the column and attached to a wire rope protruding from the boom, and a hook-side wire socket to which the tip of the wire rope to which the hook is attached can be connected. The machine base frame also includes a boom-raising cylinder whose one end is connected to the column and whose other end is attached to the boom to raise and lower the boom, and a cylinder-side wire socket to which the wire rope removed from the hook-side wire socket can be connected. In addition, the machine frame is equipped with a socket attachment section that is attached to the hoisting cylinder and to which a cylinder-side wire socket can be attached, and a cylinder stand that is disposed below the hoisting cylinder and on which the hoisting cylinder with the other end detached from the boom can be placed. The method for disassembling the crawler crane includes the steps of removing the wire rope from the hook-side wire socket while the boom device remains attached to the machine frame, and removing the hook from the wire rope. It also includes the steps of removing the wire rope removed from the hook-side wire socket from the boom, and connecting the wire rope to the cylinder-side wire socket attached to the socket attachment section while slackening the wire rope with a winch. In addition, it includes the steps of removing the hoisting cylinder from the boom while tensioning the wire rope with a winch, and placing the hoisting cylinder on the cylinder stand while slackening the wire rope with a winch.

In addition, a crawler crane according to one aspect of the present invention is a crawler crane that includes a traveling section, a machine base frame, a boom device, and an outrigger device, and can be disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device. The traveling section has a crawler unit for traveling and a drive device for driving the crawler unit. The machine base frame is disposed on the traveling section, and the base end of the column is attached to the upper surface so as to be freely rotatable. The boom device is attached to the tip of the column. The outrigger device can be attached and detached to the machine base frame. The boom device includes a boom that can be raised and lowered relative to the column, and a hook whose base end is fixed to a winch provided on the column and attached to the tip of a wire rope protruding from the boom. The hook also includes a hook main body that holds an object to be loaded, and a shared wire socket that is attached to the tip of the wire rope and can connect the hook main body. The machine base frame also includes a boom raising and lowering cylinder whose one end is connected to the column and whose other end is attached to the boom, raising and lowering the boom. Furthermore, the machine frame is equipped with a cylinder stand that is disposed below the hoisting cylinder and is capable of supporting the hoisting cylinder with the other end detached from the boom. In addition, the hoisting cylinder can be fitted with a socket attachment part that is attached to the end of the wire rope that is detached from the boom and to which a shared wire socket with an unconnected hook body can be attached.

In addition, a crawler crane according to one aspect of the present invention is a crawler crane that includes a traveling section, a machine base frame, a boom device, and an outrigger device, and can be disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device. The traveling section includes a crawler unit for traveling and a drive device for driving the crawler unit. The machine base frame is disposed on the traveling section, and the base end of the column is attached to the upper surface so as to be freely rotatable. The boom device is attached to the tip of the column. The outrigger device can be attached and detached to the machine base frame. The boom device includes a boom that can be raised and lowered relative to the column, a hook whose base end is fixed to a winch provided on the column and attached to a wire rope protruding from the boom, and a hook-side wire socket to which the tip of the wire rope to which the hook is attached can be connected. The machine base frame also includes a boom-raising cylinder whose one end is connected to the column and whose other end is attached to the boom to raise and lower the boom, and a cylinder-side wire socket to which the wire rope removed from the hook-side wire socket can be connected. In addition, the machine frame is equipped with a socket mounting section that is attached to the hoisting cylinder and to which a cylinder-side wire socket can be attached, and a cylinder stand that is positioned below the hoisting cylinder and on which the hoisting cylinder with its other end detached from the boom can be placed.

The present invention makes it possible to provide a method for disassembling a crawler crane and a crawler crane that can reduce the burden on workers, etc.

FIG. 2 is a side view showing the configuration of the crawler crane, illustrating the crawler crane in a traveling posture. FIG. 2 is a side view showing the configuration of a crawler crane, illustrating the crawler crane in a working posture. 11 is a side view showing the configuration of the running unit, and shows the state in which the running unit is being transported. FIG. FIG. 4 is a side view showing the configuration of the cylinder stand. FIG. 5 is a view taken along line V in FIG. 4 . FIG. 6 is a view taken along line VI in FIG. 4 . FIG. 7 is a view taken along line VII in FIG. FIG. FIG. 2 is a side view of a shared wire socket. FIG. 10 is a view taken along an X-ray arrow in FIG. 9 . FIG. 10 is a view taken along line XI in FIG. 9 . FIG. 2 is a side view showing the configuration of the undulating cylinder. 11A and 11B are diagrams showing a configuration of a support bracket portion. FIG. 14 is a view taken along line XIV in FIG. 13 . FIG. 14 is a view taken along line XV in FIG. 13 . 11A and 11B are diagrams showing a configuration of a connecting bracket portion. FIG. 17 is a view taken along line XVII in FIG. 16 . FIG. 18 is a view taken along line XVIII in FIG. 16 . 5A and 5B are diagrams illustrating a configuration of a socket fixing member. 20 is a view taken along line XX in FIG. 19 . FIG. 2 is a diagram illustrating a method of disassembling the crawler crane. FIG. 2 is a diagram illustrating a method of disassembling the crawler crane. FIG. 2 is a diagram illustrating a method of disassembling the crawler crane. FIG. 13 is a side view showing the configuration of a cylinder stand in a modified example. This is a view taken along line XXV in Figure 24. 25 is a view taken along line XXVI in FIG. 24 . FIG. 11 is a diagram showing a configuration of a boom device in a second embodiment. FIG. 4 is a side view showing the configuration of a hook. This is a view taken along line XXIX in Figure 28. FIG. 4 is a side view showing the configuration of a hook-side wire socket. This is a view taken along line XXXI in Figure 30. This is a view taken along line XXXII in Figure 31. This is a view taken along line XXXIII in Figure 30. FIG. 4 is a perspective view showing a configuration of a hook-side wire socket.

The disassembly method for a crawler crane and the crawler crane according to the present invention will be described below with reference to the drawings as appropriate. Note that the drawings are schematic. Therefore, it should be noted that the relationship and ratio between thickness and planar dimensions may differ from the actual ones, and the drawings may contain parts with different dimensional relationships and ratios. In addition, the embodiments shown below are examples of devices and methods for embodying the technical idea of the present invention, and the technical idea of the present invention does not specify the materials, shapes, structures, arrangements, etc. of the components to the embodiments described below.

First Embodiment
(composition)
1 and 2 , the crawler crane 1 includes a traveling section 2, a machine frame 4, a boom device 6, and four outrigger devices 8. In addition, the crawler crane 1 can be disassembled into the traveling section 2, the machine frame 4, the boom device 6, and the four outrigger devices 8.
1 and 2, some of the configurations of the traveling unit 2, the machine frame 4, the boom device 6, and the outrigger device 8 are shown in a simplified form.

In the following explanations and drawings, the direction in which the crawler crane 1 travels forward may be referred to as "forward." Similarly, in the following explanations and drawings, the direction in which the crawler crane 1 travels backward may be referred to as "rearward."
In addition, in the following explanations and drawings, the left hand side when the operator of the crawler crane 1 is sitting in the driver's seat will be referred to as the "left side," and the right hand side when the operator is sitting in the driver's seat will be referred to as the "right side." Therefore, in the following explanations and drawings, the viewpoint when the crawler crane 1 is viewed from the left side will be referred to as the "left side view," and the viewpoint when the crawler crane 1 is viewed from the right side will be referred to as the "right side view." In the following explanations, the "left side view" and the "right side view" may be collectively referred to as the "side view."

The crawler crane 1 travels to a work site using the traveling crawler unit 21 in the traveling position shown in Fig. 1, and then at the work site, the traveling part 2 is separated and the front, rear, left and right outrigger devices 8 are extended to ensure the stability of the base frame 4, resulting in the working position shown in Fig. 2. Then, after the boom device 6 is raised and extended, a load is hoisted by the hook 10 provided on the boom device 6, and loading and unloading work is performed.
Furthermore, when the crawler crane 1 is to be used at a construction site in the mountains or the like where there are no access roads, it is disassembled into the running unit 2, machine frame 4, boom device 6, and four outrigger devices 8, and transported to the construction site by being hoisted by a helicopter or the like.

<Running section>
The traveling unit 2 has a crawler unit 21 and a drive unit 22 .
As shown in Figure 3, the crawler unit 21 includes a crawler frame 21a, tracks 21b, drive wheels 21c, and driven wheels 21d. The crawler crane 1 is caused to travel by moving (rotating) the tracks 21b through rotation of the drive wheels 21c and the driven wheels 21d.
The crawler unit 21 is formed with a plurality of crawler unit hanging portions 23 for attaching linear members TR for hanging (hereinafter, referred to as "linear members TR"). Furthermore, the crawler unit 21 is fixed with frame pins 24 that serve as positioning guides when the machine frame 4 is attached to the crawler unit 21.
The linear member TR is formed using, for example, a wire rope.

The drive unit 22 is disposed above the crawler unit 21 (vertically above) and includes a hydraulic motor (not shown), a hydraulic pump (not shown), a drive device (not shown), a driver's seat 22a, and a frame portion 22b.
In addition, a hose (hydraulic hose) connecting the drive unit 22 and the crawler unit 21 is detachably connected via a coupler (not shown).
The hydraulic motor is a motor that drives the crawler unit 21 (drive wheels 21c). The hydraulic pump is a pump that supplies pressure oil to the hydraulic motor. The drive device is a device that drives the hydraulic pump.
The driver's seat 22a is a seat where the operator of the crawler crane 1 sits.
The frame portion 22b is disposed above the crawler unit 21 and supports the drive unit from below (vertically below).

<Machine frame>
The machine base frame 4 forms the machine base of the crane section provided in the crawler crane 1 .
The machine frame 4 also includes a column 41, a winch 42, a lifting cylinder 43, a headlamp 46, and a cylinder stand 7.
The machine frame 4 is formed with a plurality of machine-side hanging portions 44 for attaching the linear members TR.
The base end of the column 41 is disposed on the upper surface of the machine frame 4 so that the column 41 is freely rotatable relative to the machine frame 4 .
A boom device 6 is attached to the tip of the column 41.

The winch 42 is configured to be rotatable by a motor or the like, and is attached to the column 41 .
In addition, the base end of the wire rope W is fixed to the winch 42.
The hoisting cylinder 43 is disposed below the boom 61 between the column 41 and the boom device 6 .
In addition, the hoisting cylinder 43 is a cylinder (derrick cylinder) for raising and lowering the boom 61, which will be described later.

One end of the relief cylinder 43 is connected to the front surface of the column 41 (the right surface in FIG. 1).
The other end of the hoisting cylinder 43 is attached to the underside of the boom 61 (the lower surface in FIG. 1 ) using a boom mounting pin 63. The hoisting cylinder 43 increases the angle of the boom 61 with respect to the top surface of the base frame 4 by extending, and decreases the angle of the boom 61 with respect to the top surface of the base frame 4 by contracting.
When the other end of the derrick cylinder 43 is attached to the underside of the boom 61 , the boom mounting pin 63 passes through the other end of the derrick cylinder 43 and the boom 61 .
The headlight 46 is a lighting device capable of illuminating the direction in which the traveling unit 2 moves forward (the left direction in FIG. 1).
The headlight 46 is disposed on the upper surface of the machine frame 4 , further forward than the column 41 (on the left side in FIG. 1 ).

The cylinder stand 7 is positioned on the upper surface of the machine frame 4 below the hoisting cylinder 43, and is formed in a shape that allows the hoisting cylinder 43 with its other end removed from the boom 61 to be placed on it.
As shown in Figures 4 to 7, the cylinder stand 7 includes a stand frame 71, two flange portions 72, two stay portions 73, and a buffer member 74. Note that the buffer member 74 is not shown in Figures 4 to 6.
In addition, the headlight 46 is illustrated in a simplified manner in Fig. 7. Furthermore, for the sake of explanation, components other than the cylinder stand 7, the headlight 46, and the machine frame 4 are not illustrated in Fig. 7. Furthermore, for the sake of explanation, the configuration of the machine frame 4 is illustrated in a simplified manner in Fig. 7.

The platform frame 71 is formed in a U-shape when viewed from the left side of the crawler crane 1.
The stand frame 71 also includes a first side frame portion 71a, a second side frame portion 71b, and an upper frame portion 71c.
As shown in FIG. 7 , the first side frame portion 71 a forms a portion of the stand frame 71 that faces the left side surface of the headlamp 46 .
As shown in FIG. 7, the second side frame portion 71b forms a portion of the stand frame 71 that faces the right side of the headlamp 46.

The upper frame portion 71c connects the first side frame portion 71a and the second side frame portion 71b, and forms a portion of the stand frame 71 that faces the upper surface of the headlamp 46, as shown in Figure 7.
The upper frame portion 71c is formed with two frame-side bolt holes 71d. The frame-side bolt holes 71d are holes into which bolts or the like used to fix the cushioning member 74 to the mounting frame 71 are inserted.

The two flange portions 72 are formed on the ends (lower ends in Figure 7) of the first side frame portion 71a and the second side frame portion 71b opposite the ends connected to the upper frame portion 71c.
Further, two flange-side bolt holes 72a are formed in each of the two flange portions 72. The flange-side bolt holes 72a are holes into which bolts or the like used to fix the stand frame 71 to the upper surface of the machine base frame 4 are inserted.

The two stay portions 73 are each fixed by welding or the like to the ends (upper ends in Figure 7) of the first side frame portion 71a and the second side frame portion 71b that are connected to the upper frame portion 71c.
In addition, the stay portion 73 is formed in a U-shape, and two ends are fixed to the ends of the first side frame portion 71a and the second side frame portion 71b that are connected to the upper frame portion 71c.
The arc-shaped portion of the stay portion 73 protrudes upward from the first side frame portion 71a and the second side frame portion 71b in a side view.

The buffer member 74 is attached to the upper surface of the upper frame portion 71c using bolts or the like.
The buffer member 74 is made of, for example, a resin material.

The surface of the buffer member 74 that faces the upper frame portion 71c (the lower surface in FIG. 7) is flat.
The surface of the buffer member 74 opposite to the surface facing the upper frame portion 71 c (the upper surface in FIG. 7 ) is a curved surface that follows the outer circumferential surface of the undulating cylinder 43 .

<Boom device>
The boom device 6 is provided with a boom 61 which is extendable and can be raised and lowered relative to the column 41 , and is attached to the tip of the column 41 .
The boom device 6 also includes a pulley (not shown).
A wire rope W is wound around the pulley, the base end of which is fixed to a winch 42. A hook 10 is attached to the tip of the wire rope W.
The boom 61 is formed with a plurality of boom-side hanging portions 62 for attaching the linear member TR.

<Outrigger device>
The four outrigger devices 8 are respectively detachably attached to four outrigger mounting brackets 45 formed on the base frame 4. The four outrigger mounting brackets 45 are respectively disposed at four corners of the base frame 4 along the front-rear direction and the vehicle width direction of the crawler crane 1 in a plan view.
In addition, the outrigger device 8 is formed with multiple outrigger side hanging portions 81 for attaching the linear members TR.
In addition, the four outrigger devices 8 can be freely deployed and extended around the machine frame 4.

＜Hook＞
The hook 10 is attached to the boom device 6 and to the end of a wire rope W protruding from the tip of the boom 61.
As shown in FIG. 8 , the hook 10 includes a hook body 11 and a common wire socket 12 .
The hook body 11 has a portion formed in a claw shape and holds the object of loading and unloading (such as a suspended load).
The hook body 11 also includes a body-side pin insertion portion 11a.

The main body side pin insertion portion 11a is formed in a plate shape, and has a main body side hole portion 11b into which a connecting pin (not shown) used for connecting to the common wire socket 12 can be inserted.
The connecting pin is a pin that passes through a part of the hook body 11 and a part of the shared wire socket 12 when the hook body 11 is connected to the shared wire socket 12 .
The common wire socket 12 is attached to the tip of the wire rope W and is connectable to the hook body 11. The detailed configuration of the common wire socket 12 is shown in Figs. 9 to 11.

Specifically, the common wire socket 12 includes a cylindrical portion 12a and a socket-side pin insertion portion 12b.
A space is formed inside the cylindrical portion 12a. Inside the space formed in the cylindrical portion 12a, the wire rope W is folded back in a U-shape.
Also, for example, as shown in Figure 8, the portion of the wire rope W that is inserted into the space formed in the tubular portion 12a and the portion that is folded back inside the space formed in the tubular portion 12a and protrudes from the tubular portion 12a are fixed using a wire clamp or the like.

The socket side pin insertion portion 12b is formed by combining two plates that sandwich the main body side pin insertion portion 11a, and has a socket side hole portion 12c.
The socket side hole portion 12c is a hole into which a connecting pin can be inserted.
The socket side hole portion 12c is a hole into which a socket fixing pin (described later), which is a pin different from a connecting pin, can be inserted.
Further, one of the two plate members forming the socket side pin insertion portion 12b is formed with a socket side holding hole portion 12d.
The socket side holding hole portion 12d is a hole into which a socket holding member SB, which will be described later, can be inserted.

<Rotation cylinder>
Hereinafter, a detailed configuration of the hoisting cylinder 43 will be described with reference to Fig. 12 while referring to Fig. 1 to Fig. 11. Note that Fig. 12 illustrates the configuration of the hoisting cylinder 43 with some parts omitted.
As shown in FIG. 12, the lifting cylinder 43 is capable of mounting the socket mounting portion 3 .
The socket attachment portion 3 is formed by combining a support bracket portion 31 and a connecting bracket portion 32 using bolts, etc. The specific configurations of the support bracket portion 31 and the connecting bracket portion 32 will be described later.
The socket attachment portion 3 is capable of attaching the common wire socket 12 to the tip of the wire rope W that is detached from the boom 61 and to which the hook body 11 is not connected. For the sake of explanation, the wire rope W is not shown in FIG. 12.

In addition, the socket mounting portion 3 can be attached to the outer peripheral surface of the elevation cylinder 43.
A socket fixing member 5 is used when mounting the common wire socket 12 to the socket mounting portion 3. A specific configuration of the socket fixing member 5 will be described later.
Moreover, the socket fixing member 5 is attached to the common wire socket 12 by using a socket holding member SB.
The socket holding member SB is formed using, for example, a bolt or the like.
In addition, with the socket fixing member 5 attached to the shared wire socket 12, the tip of the socket holding member SB is inserted into the socket side holding hole portion 12d.

<Support bracket part>
The configuration of the support bracket part 31 will be described below using Figures 13 to 15 while referring to Figures 1 to 12. Note that Figure 13 is a view of the support bracket part 31 as seen from the other end side of the hoisting cylinder 43 (the left end side in Figure 12).
The support bracket portion 31 is formed by bending a plate material, and is attached to the outer peripheral surface of the elevation cylinder 43 from below.
The support bracket portion 31 includes a support side main body portion 31a, a support side first flange portion 31b, and a support side second flange portion 31c.
The support side main body portion 31 a forms a portion of the support bracket portion 31 that faces the outer peripheral surface of the hoisting cylinder 43 .

The support-side first flange portion 31b forms one end (the left end in FIG. 13) of the support-side main body portion 31a along the circumferential direction of the hoisting cylinder 43. Furthermore, as shown in FIG. 14, the support-side first flange portion 31b is formed with two support-side first insertion holes 31d into which bolts or the like can be inserted.
The support-side second flange portion 31c forms the other end (the right end in FIG. 13) of the support-side main body portion 31a along the circumferential direction of the undulating cylinder 43. In addition, the support-side second flange portion 31c is formed with two support-side second insertion holes 31e into which bolts or the like can be inserted, as shown in FIG.

<Connecting bracket part>
The configuration of the connecting bracket part 32 will be described below with reference to Figures 1 to 15 and Figures 16 to 18. Figure 16 is a view of the connecting bracket part 32 as seen from the other end side of the hoisting cylinder 43 (the left end side in Figure 12).
The connecting bracket portion 32 includes a connecting side main body portion 32a, a connecting side first flange portion 32b, a connecting side second flange portion 32c, and an attachment portion side pin insertion portion 32d.

The connecting body portion 32a is formed by bending a plate material, and is attached to the outer peripheral surface of the elevation cylinder 43 from above.
The first connecting flange portion 32b forms one end (the left end in FIG. 16) of the connecting body portion 32a along the circumferential direction of the hoisting cylinder 43. Furthermore, the first connecting flange portion 32b is formed with two first connecting insertion holes 32e, into which bolts or the like can be inserted, as shown in FIG.

The two connecting side first insertion holes 32e are each positioned so as to overlap with the support side first insertion holes 31d when the support bracket portion 31 and the connecting bracket portion 32 are combined (see Figure 12).
When combining the support bracket portion 31 and the connecting bracket portion 32, the support side first flange portion 31b and the connecting side first flange portion 32b are overlapped, and the support side second flange portion 31c and the connecting side second flange portion 32c are overlapped.

The second connecting flange portion 32c forms the other end (the right end in FIG. 16) of the connecting body portion 32a along the circumferential direction of the undulating cylinder 43. In addition, the second connecting flange portion 32c is formed with two second connecting insertion holes 32f, into which bolts or the like can be inserted, as shown in FIG.
The two connecting side second insertion holes 32f are each positioned so as to overlap with the support side second insertion holes 31e when the support bracket portion 31 and the connecting bracket portion 32 are combined (see Figure 12).

The mounting portion side pin insertion portion 32d is formed in a plate shape protruding from the surface opposite to the surface facing the undulating cylinder 43 of the connecting side main body portion 32a.
As shown in FIG. 18, the mounting portion side pin insertion portion 32d has a mounting portion side hole portion 33. As shown in FIG.
The attachment portion side hole portion 33 is a circular hole that passes through the attachment portion side pin insertion portion 32d and into which a socket fixing pin (described later) can be inserted.

<Socket fixing member>
The configuration of the socket fixing member 5 will be described below with reference to Figures 1 to 18 and also with reference to Figures 19 and 20. Note that Figure 19 is a view of the socket fixing member 5 as seen from the direction of the paper surface in Figure 12.
The socket fixing member 5 includes a fixing member main body 51 and a socket fixing pin 52 .
The fixed member main body 51 is formed in a plate shape and has a fixed member side holding hole 51a.
The fixed member side holding hole portion 51a is an elliptical hole that penetrates the fixed member main body portion 51 and into which the socket holding member SB can be inserted.
The socket fixing pin 52 is formed in a cylindrical shape. The socket fixing pin 52 is formed in a shape that allows it to be inserted into the socket side hole 12 c and the attachment portion side hole 33 .

<How to disassemble a crawler crane>
Next, a method of disassembling the crawler crane 1 will be described using FIGS. 21 to 23 while also referring to FIGS. 1 to 20.
Before transportation, the crawler crane 1 is disassembled into the traveling part 2, the machine frame 4, the boom device 6, and the four outrigger devices 8 at a factory or the like.
As shown in FIG. 3, the disassembled traveling section 2 has a plurality of linear members TR attached to the frame section 22b and the crawler unit hanging section 23, and is then hoisted by a helicopter or the like and transported to the construction site.

When disassembling the base frame 4 and the boom device 6, first, as shown in Fig. 21, the column 41 is rotated with the boom device 6 attached to the base frame 4. Then, the portion of the boom device 6 to which the other end of the hoisting cylinder 43 is connected is brought into a state in which it protrudes from the base frame 4 in a side view.
Next, although not shown in the drawings, the hook body 11 is removed from the shared wire socket 12, and the shared wire socket 12 is now in a state where it is attached to the wire rope W but the hook body 11 is not connected. The hook body 11 removed from the shared wire socket 12 is fixed to a flat position on the machine frame 4, for example.

22, the socket attachment portion 3 is attached to the outer circumferential surface of the hoisting cylinder 43. For the sake of explanation, part of the boom device 6 and part of the base frame 4 are omitted in FIG.
When attaching the socket attachment part 3 to the hoisting cylinder 43, first, the support bracket part 31 and the connecting bracket part 32 are combined with the outer circumferential surface of the hoisting cylinder 43 sandwiched between them. After that, bolts or the like are inserted into the two support-side first insertion holes 31d and the connecting-side first insertion hole 32e, and the two support-side second insertion holes 31e and the connecting-side second insertion holes 32f.

Furthermore, the wire rope W to which the common wire socket 12 to which the hook body 11 is not connected is attached is removed from the boom 61. Thereafter, the winch 42 is operated to slacken the wire rope W, and the common wire socket 12 from which the hook body 11 has been removed is attached to the socket attachment portion 3.
In addition, the operation of attaching the socket mounting portion 3 to the hoisting cylinder 43 and the operation of removing the wire rope W having the shared wire socket 12 attached to the hook main body portion 11 not connected thereto from the boom 61 may be performed in either order, or they may be performed simultaneously.
When attaching the common wire socket 12 from which the hook body 11 has been removed to the socket attachment part 3, the attachment part side pin insertion part 32d is disposed between the two plates forming the socket side pin insertion part 12b. Furthermore, with the socket side hole part 12c and the attachment part side hole part 33 overlapping each other, the socket fixing pin 52 is inserted into the socket side hole part 12c and the attachment part side hole part 33.

In addition, with the socket side holding hole portion 12d and the fixed member side holding hole portion 51a overlapping each other, the socket holding member SB is inserted into the socket side holding hole portion 12d and the fixed member side holding hole portion 51a.
Therefore, in the method of disassembling the crawler crane 1, the socket fixing pin 52 is inserted into the socket side hole 12c and the mounting part side hole 33 in a state where the socket side hole 12c and the mounting part side hole 33 are overlapped. In this way, the shared wire socket 12 to which the hook main body 11 is not connected is attached to the socket mounting part 3.

Thereafter, with the winch 42 operated to tension the wire rope W, the hoisting cylinder 43 (the other end of the hoisting cylinder 43) is removed from the boom 61 as shown in Figure 23. Note that for the sake of explanation, part of the boom device 6 and part of the base frame 4 are omitted in Figure 23.
When removing the hoisting cylinder 43 from the boom 61, the boom mounting pin 63 that passes through the other end of the hoisting cylinder 43 and the boom 61 is pulled out.

After removing the hoisting cylinder 43 from the boom 61, the wire rope W is slackened by the winch 42 and the hoisting cylinder 43 is placed on the cylinder stand 7.
When the undulating cylinder 43 is placed on the cylinder stand 7 , the outer peripheral surface of the undulating cylinder 43 is brought into contact with the upper surface of the buffer member 74 .

After the undulating cylinder 43 is placed on the cylinder stand 7, the undulating cylinder 43 is fixed to the cylinder stand 7 using a cylinder fixing member 9, as shown in FIG.
The cylinder fixing member 9 is a member for fixing the undulating cylinder 43 to the cylinder stand 7, and includes two hook portions 91 and a belt portion 92. Note that only one of the two hook portions 91 is shown in Fig. 23.
The cylinder fixing member 9 is attached to the traveling part 2, for example, near the driver's seat 22a, and when the hoisting cylinder 43 is fixed to the cylinder stand 7, an operator or the like moves it from the traveling part 2 to the base frame 4. In other words, the crawler crane 1 is equipped with the cylinder fixing member 9.

The two hook portions 91 are each formed in a shape that allows them to be hooked onto and attached to the stay portion 73 .
The belt portion 92 is formed in a belt shape using an elastic material such as rubber.
Two hook portions 91 are attached to both ends of the belt portion 92 .
Therefore, when using the cylinder fixing member 9 to fix the undulating cylinder 43 placed on the cylinder stand 7 to the cylinder stand 7, the two hook portions 91 are attached to the two stay portions 73 with the undulating cylinder 43 sandwiched between the buffer member 74 and the belt portion 92.
After the hoisting cylinder 43 is fixed to the cylinder stand 7 using the cylinder fixing member 9, the boom device 6 is removed from the machine frame 4, and the machine frame 4 and the boom device 6 are disassembled.

The disassembled machine base frame 4 is transported to the construction site by, for example, attaching the linear members TR to the machine base side suspension parts 44 and suspending the machine base frame 4 from a helicopter or the like.
The disassembled boom device 6 has the linear member TR attached to the boom side hanging section 62, and is then hoisted by a helicopter or the like and transported to the construction site.
The disassembled outrigger device 8 has the linear member TR attached to the outrigger side hanging portion 81, and is then hoisted by a helicopter or the like and transported to the construction site.

As explained above, the method of disassembling the crawler crane 1 includes the step of removing the hook body 11 from the shared wire socket 12 while the boom device 6 remains attached to the machine frame 4. It also includes the step of removing the wire rope W to which the shared wire socket 12 is attached from the boom, and the step of attaching the socket attachment part 3 to which the shared wire socket 12 can be attached to the hoisting cylinder 43. In addition, it includes the step of attaching the shared wire socket 12 to the socket attachment part 3 while the wire rope W is slackened by the winch 42, and the step of removing the hoisting cylinder 43 from the boom while the wire rope W is tensioned by the winch 42. It also includes the step of slackening the wire rope W by the winch 42 and placing the hoisting cylinder 43 on the cylinder stand 7.

In addition, in the process of using the winch 42 to slacken the wire rope W and place the hoisting cylinder 43 on the cylinder stand 7, the hoisting cylinder 43 is placed on the cylinder stand 7 with the stand frame 71 facing the top and side of the headlight 46.
In addition, the method of disassembling the crawler crane 1 further includes a step of fixing the derrick cylinder 43 to the cylinder base 7 using a cylinder fixing member 9 that fixes the derrick cylinder 43 to the cylinder base 7.

<Actions and Effects of First Embodiment>
The method for disassembling the crawler crane 1 of the first embodiment can achieve the following actions and effects.
(1) The method includes a step of removing the hook body 11 from the shared wire socket 12 while the boom device 6 remains attached to the base frame 4. The method further includes a step of removing the wire rope W to which the shared wire socket 12 is attached from the boom, and a step of attaching the socket attachment part 3 to which the shared wire socket 12 can be attached to the hoisting cylinder 43. In addition to this, the method includes a step of attaching the shared wire socket 12 to the socket attachment part 3 while the wire rope W is slackened by the winch 42, and a step of removing the hoisting cylinder 43 from the boom while the wire rope W is tensioned by the winch 42. The method also includes a step of slackening the wire rope W by the winch 42 and placing the hoisting cylinder 43 on the cylinder stand 7.
As a result, when removing the boom device 6 from the machine frame 4 , the hoisting cylinder 43 removed from the boom 61 can be placed on the cylinder stand 7 provided on the machine frame 4 .

This makes it possible to provide a method for disassembling the crawler crane 1 that reduces the burden on workers, etc., since there is no need to place sleepers or the like on the base frame 4 to place the hoisting cylinder 43 when disassembling the boom device 6.
In addition, when placing the hoisting cylinder 43 on the cylinder stand 7, the winch 42 is operated with the wire rope W tensioned, making it possible to change the angle of the hoisting cylinder 43 and improve work efficiency.

Furthermore, since the hoisting cylinder 43 can be placed on the cylinder stand 7 using the wire rope W and winch 42, which are existing components of the crawler crane 1, it is possible to reduce the burden on workers, etc., without adding any new components.
In addition, since it is possible to place the hoisting cylinder 43 on the cylinder stand 7 without the need to remove existing components, such as the headlights 46, from the machine frame 4, it is possible to reduce the burden on workers, etc.

(2) In the process of using the winch 42 to slacken the wire rope W and place the hoisting cylinder 43 on the cylinder stand 7, the hoisting cylinder 43 is placed on the cylinder stand 7 with the stand frame 71 facing the top and side of the headlight 46.
As a result, it is possible to mount the hoisting cylinder 43 on the cylinder stand 7 without the need to remove the headlight 46 from the machine frame 4, thereby reducing the burden on workers, etc. Also, it is possible to prevent damage to the headlight 46 when disassembling the boom device 6.

(3) The method further includes a step of fixing the undulating cylinder 43 to the cylinder stand 7 using a cylinder fixing member 9 that fixes the undulating cylinder 43 to the cylinder stand 7.
As a result, it is possible to reduce the shaking of the hoisting cylinder 43 caused by vibrations and the like that occur during transportation, and it is possible to improve stability.
The crawler crane 1 of the first embodiment can achieve the following actions and effects.

(4) The machine base frame 4 is provided with a hoisting cylinder 43, one end of which is connected to the column and the other end of which is attached to the boom 61 to raise or lower the boom 61. In addition, the machine base frame 4 is provided with a cylinder stand 7 which is disposed below the hoisting cylinder 43 and on which the hoisting cylinder 43 with the other end detached from the boom 61 can be placed.
As a result, when removing the boom device 6 from the machine frame 4 , the hoisting cylinder 43 removed from the boom 61 can be placed on the cylinder stand 7 provided on the machine frame 4 .

This makes it possible to provide a crawler crane that reduces the burden on workers, etc., since there is no need to place sleepers, etc. on the base frame 4 to place the hoisting cylinder 43 when disassembling the boom device 6.
In addition, when placing the hoisting cylinder 43 on the cylinder stand 7, the winch 42 is operated with the wire rope W tensioned, making it possible to change the angle of the hoisting cylinder 43 and improve work efficiency.

Furthermore, since the hoisting cylinder 43 can be placed on the cylinder stand 7 using the wire rope W and winch 42, which are existing components of the crawler crane 1, it is possible to reduce the burden on workers, etc., without adding any new components.
In addition, since it is possible to place the hoisting cylinder 43 on the cylinder stand 7 without the need to remove existing components, such as the headlights 46, from the machine frame 4, it is possible to reduce the burden on workers, etc.

(5) The machine frame 4 further includes the headlight 46 capable of illuminating the forward movement direction of the traveling unit 2. The cylinder stand 7 also includes the stand frame 71 that faces the upper surface and side surfaces of the headlight 46.
As a result, it is possible to mount the hoisting cylinder 43 on the cylinder stand 7 without the need to remove the headlight 46 from the machine frame 4, thereby reducing the burden on workers, etc. Also, it is possible to prevent damage to the headlight 46 when disassembling the boom device 6.

(6) The device further includes a cylinder fixing member 9 for fixing the undulating cylinder 43 placed on the cylinder stand 7 to the cylinder stand 7.
As a result, it is possible to reduce the shaking of the hoisting cylinder 43 caused by vibrations and the like that occur during transportation, and it is possible to improve stability.

<Modification>
(1) In the first embodiment, the cylinder fixing member 9 is attached to the running part 2 during work, etc., and when the hoisting cylinder 43 is fixed to the cylinder stand 7, an operator or the like moves it from the running part 2 to the machine frame 4, but this is not limited to the above. That is, the cylinder fixing member 9 may be attached such that at least one of the two hook portions 91 is hooked onto the stay portion 73 during work, etc.

(2) In the first embodiment, the cylinder stand 7 is configured to include the stand frame 71, the flange portion 72, the stay portion 73, and the buffer member 74, but is not limited to this. That is, the cylinder stand 7 may be configured, for example, as shown in Figures 24 to 26, without including the stay portion 73, and with frame-side through holes 75 formed in the first side frame portion 71a and the second side frame portion 71b. Note that the buffer member 74 is omitted from illustration in Figures 24 to 66.
The frame-side through-hole 75 is a gap into which, for example, a rope (not shown) used as a cylinder fixing member can be inserted. Therefore, the configuration of the cylinder fixing member 9 used to fix the hoisting cylinder 43 to the cylinder stand 7 is not limited to the configuration including the two hook portions 91 and the belt portion 92.

Second Embodiment
The second embodiment will be described below with reference to Fig. 1 to Fig. 23. Note that the description of the same configuration as the first embodiment described above may be omitted.
(composition)
The crawler crane 1 of the second embodiment has the same configuration as that of the first embodiment described above, except for the machine base frame 4 and the boom device 6.

<Machine frame>
The machine frame 4 includes a column 41, a winch 42, a hoisting cylinder 43, a headlight 46, and a cylinder stand 7. In addition, the machine frame 4 includes a cylinder-side wire socket and a socket mounting portion 3.
The configuration of the cylinder side wire socket is similar to the configuration of the common wire socket 12 in the above-described first embodiment.
The cylinder side wire socket is a socket to which the wire rope W detached from the hook side wire socket 13 described later can be connected.
The socket mounting portion 3 is attached to the elevation cylinder 43 and is capable of mounting a cylinder side wire socket.

<Boom device>
As shown in FIG. 27 , the boom device 6 includes a boom 61, a hook 10, and a hook-side wire socket 13.

＜Hook＞
The hook 10 is attached to the boom device 6 and is attached to a wire rope W protruding from the tip of the boom 61.
Moreover, the hook 10 includes a hook body portion 11 as shown in FIGS.
The hook body 11 has a portion formed in a claw shape and holds the object of loading and unloading (such as a suspended load).
The hook body 11 is also formed with two rope receiving portions 11c.
The rope receiving portion 11c is formed by a concave groove, and the portion of the wire rope W between the portion protruding from the boom 61 and the tip comes into contact with it.

<Hook side wire socket>
The hook side wire socket 13 is a socket to which the tip of the wire rope W to which the hook 10 is attached can be connected, and is attached to the side of the boom 61 at the tip of the boom 61.
As shown in Figures 30 to 34, the hook side wire socket 13 includes a socket tip holding portion 13a, a rope holding portion 13b, a socket tube portion 13c, and a rope receiving groove 13d.

The socket tip holding portion 13a is a hole into which the tip of the wire rope W can be inserted.
The rope holding portion 13b is formed by a concave groove and holds the wire rope W whose tip is inserted into the socket tip holding portion 13a.
The socket cylinder portion 13c is disposed at a position farther away from the socket tip holding portion 13a than the rope holding portion 13b, and a space is formed inside the socket cylinder portion 13c. The wire rope W is disposed in the space formed in the socket cylinder portion 13c.
The rope receiving groove 13d is formed by a concave groove, and the portion of the wire rope W that is positioned between the hook main body 11 and the hook side wire socket 13 comes into contact with it.

<How to disassemble a crawler crane>
Next, a method of disassembling the crawler crane 1 will be described with reference to Figures 1 to 34. Note that the description of operations similar to those in the first embodiment described above may be omitted.
21, when disassembling the base frame 4 and the boom device 6, the column 41 is rotated with the boom device 6 attached to the base frame 4. Then, the portion of the boom device 6 to which the other end of the hoisting cylinder 43 is connected is brought into a state in which it protrudes from the base frame 4 in a side view.
Next, although not shown in the drawings, the wire rope W is removed from the hook-side wire socket 13, and further, the hook body 11 is removed from the wire rope W, thereby putting the hook-side wire socket 13 in a state where the wire rope W and the hook body 11 are not connected. Note that the hook body 11 removed from the wire rope W is fixed, for example, to a flat position on the machine frame 4.

Next, the wire rope W removed from the hook side wire socket 13 is removed from the boom 61. Thereafter, the winch 42 is operated to slacken the wire rope W, and the wire rope W is connected to the cylinder side wire socket attached to the socket attachment portion 3.
Thereafter, the winch 42 is operated to tension the wire rope W, and the hoisting cylinder 43 (the other end of the hoisting cylinder 43) is removed from the boom 61. Then, the wire rope W is slackened by the winch 42, and the hoisting cylinder 43 is placed on the cylinder stand 7.

As described above, the method of disassembling the crawler crane 1 includes the step of removing the wire rope W from the hook side wire socket 13 while the boom device 6 remains attached to the machine frame 4. It also includes the step of removing the hook 10 from the wire rope W, and the step of removing the wire rope W removed from the hook side wire socket 13 from the boom 61. In addition, it includes the step of connecting the wire rope W to the cylinder side wire socket attached to the socket attachment part 3 while the wire rope W is slackened by the winch 42. It also includes the step of removing the hoisting cylinder 43 from the boom 61 while the wire rope W is tensioned by the winch 42. It also includes the step of slackening the wire rope W by the winch 42 and placing the hoisting cylinder 43 on the cylinder stand 7.

<Actions and Effects of Second Embodiment>
The method for disassembling the crawler crane 1 according to the second embodiment can achieve the following actions and effects.
(1) The method includes a step of removing the wire rope W from the hook-side wire socket 13 while the boom device 6 remains attached to the machine frame 4. The method further includes a step of removing the hook 10 from the wire rope W, and a step of removing the wire rope W removed from the hook-side wire socket 13 from the boom 61. In addition, the method includes a step of connecting the wire rope W to the cylinder-side wire socket attached to the socket attachment part 3 while the wire rope W is slackened by the winch 42. The method also includes a step of removing the hoisting cylinder 43 from the boom 61 while the wire rope W is tensioned by the winch 42. The method also includes a step of slackening the wire rope W by the winch 42 and placing the hoisting cylinder 43 on the cylinder stand 7.
As a result, when removing the boom device 6 from the machine frame 4 , the hoisting cylinder 43 removed from the boom 61 can be placed on the cylinder stand 7 provided on the machine frame 4 .

This makes it possible to provide a method for disassembling the crawler crane 1 that reduces the burden on workers, etc., since there is no need to place sleepers or the like on the base frame 4 to place the hoisting cylinder 43 when disassembling the boom device 6.
In addition, when placing the hoisting cylinder 43 on the cylinder stand 7, the winch 42 is operated with the wire rope W tensioned, making it possible to change the angle of the hoisting cylinder 43 and improve work efficiency.

Furthermore, since the hoisting cylinder 43 can be placed on the cylinder stand 7 using the wire rope W and winch 42, which are existing components of the crawler crane 1, it is possible to reduce the burden on workers, etc., without adding any new components.
In addition, since it is possible to place the hoisting cylinder 43 on the cylinder stand 7 without the need to remove existing components, such as the headlights 46, from the machine frame 4, it is possible to reduce the burden on workers, etc.
The crawler crane 1 of the second embodiment can achieve the following actions and effects.

(2) The boom device 6 comprises a boom 61, a hook 10, and a hook-side wire socket 13 to which the tip of the wire rope W to which the hook 10 is attached can be connected. The machine base frame 4 also comprises a hoisting cylinder 43 having one end connected to the column and the other end attached to the boom 61 to raise or lower the boom 61. The machine base frame 4 also comprises a cylinder-side wire socket to which the wire rope W detached from the hook-side wire socket 13 can be connected, and a socket attachment portion 3 attached to the hoisting cylinder 43 and to which the cylinder-side wire socket can be attached. In addition, the machine base frame 4 comprises a cylinder stand 7 that is disposed below the hoisting cylinder 43 and on which the hoisting cylinder 43 with the other end detached from the boom 61 can be placed.
As a result, when removing the boom device 6 from the machine frame 4 , the hoisting cylinder 43 removed from the boom 61 can be placed on the cylinder stand 7 provided on the machine frame 4 .

This makes it possible to provide a crawler crane that reduces the burden on workers, etc., since there is no need to place sleepers, etc. on the base frame 4 to place the hoisting cylinder 43 when disassembling the boom device 6.
In addition, when placing the hoisting cylinder 43 on the cylinder stand 7, the winch 42 is operated with the wire rope W tensioned, making it possible to change the angle of the hoisting cylinder 43 and improve work efficiency.

Furthermore, since the hoisting cylinder 43 can be placed on the cylinder stand 7 using the wire rope W and winch 42, which are existing components of the crawler crane 1, it is possible to reduce the burden on workers, etc., without adding any new components.
In addition, since it is possible to place the hoisting cylinder 43 on the cylinder stand 7 without the need to remove existing components, such as the headlights 46, from the machine frame 4, it is possible to reduce the burden on workers, etc.
In addition, since the socket mounting portion 3 is always attached to the elevation cylinder 43, the work efficiency of the worker can be improved.

The present technology can be configured as follows.
(1)
A crawler crane includes a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit, a base frame arranged on the traveling section and having a base end of a column rotatably attached to an upper surface thereof, a boom device attached to the tip end of the column, and an outrigger device that can be attached to and detached from the base frame, and the crawler crane can be disassembled into the traveling section, the base frame, the boom device, and the outrigger device, and the method of disassembling the base frame and the boom device comprises:
The boom device includes a boom that can be raised and lowered relative to the column, and a hook that is attached to a tip of a wire rope that is fixed at a base end to a winch provided on the column and protrudes from the boom,
The hook includes a hook body portion that holds an object to be loaded and a shared wire socket that is attached to a tip of the wire rope and can connect the hook body portion,
the base frame includes a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, and a cylinder stand that is disposed below the hoisting cylinder and is capable of supporting the hoisting cylinder whose other end has been detached from the boom;
a wire rope having the shared wire socket attached thereto from the boom; attaching a socket mounting portion to which the shared wire socket can be attached to the hoisting cylinder; attaching the shared wire socket to the socket mounting portion while slackening the wire rope with the winch; removing the hoisting cylinder from the boom while tensioning the wire rope with the winch; and placing the hoisting cylinder on the cylinder stand by slackening the wire rope with the winch.

(2)
A crawler crane includes a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit, a base frame arranged on the traveling section and having a base end of a column rotatably attached to an upper surface thereof, a boom device attached to the tip end of the column, and an outrigger device that can be attached to and detached from the base frame, and the crawler crane can be disassembled into the traveling section, the base frame, the boom device, and the outrigger device, and the method of disassembling the base frame and the boom device comprises:
The boom device includes a boom that can be raised and lowered relative to the column, a hook that is attached to a wire rope that has a base end fixed to a winch provided on the column and protrudes from the boom, and a hook-side wire socket that can be connected to a tip end of the wire rope to which the hook is attached,
the base frame comprises a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, a cylinder side wire socket to which the wire rope detached from the hook side wire socket can be connected, a socket attachment portion attached to the hoisting cylinder and to which the cylinder side wire socket can be attached, and a cylinder stand disposed below the hoisting cylinder and capable of supporting the hoisting cylinder having the other end detached from the boom,
a wire rope that has been removed from the hook side wire socket while the boom device is still attached to the base frame; a hook that has been removed from the wire rope; a wire rope that has been removed from the hook side wire socket and is now removed from the boom; a wire rope that has been removed from the hook side wire socket and now is now removed from the boom;

(3)
The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
The cylinder stand includes a stand frame that faces an upper surface and a side surface of the headlamp,
In the process of using the winch to slacken the wire rope and place the hoisting cylinder on the cylinder stand, the hoisting cylinder is placed on the cylinder stand with the stand frame facing the top and side of the headlight. This is a method of disassembling a crawler crane as described in (1) or (2) above.
(4)
The disassembling method for a crawler crane described in any one of (1) to (3) above further includes a step of fixing the hoisting cylinder to the cylinder stand using a cylinder fixing member that fixes the hoisting cylinder to the cylinder stand.

(5)
A crawler crane comprising: a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit; a machine base frame disposed on the traveling section and having a base end of a column rotatably attached to an upper surface thereof; a boom device attached to a tip end of the column; and an outrigger device that can be attached to and detached from the machine base frame, the crawler crane being capable of being disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device,
The boom device includes a boom that can be raised and lowered relative to the column, and a hook that is attached to a tip of a wire rope that is fixed at a base end to a winch provided on the column and protrudes from the boom,
The hook includes a hook body portion that holds an object to be loaded and a shared wire socket that is attached to a tip of the wire rope and can connect the hook body portion,
the base frame includes a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, and a cylinder stand that is disposed below the hoisting cylinder and is capable of supporting the hoisting cylinder whose other end has been detached from the boom;
A crawler crane in which the hoisting cylinder is attached to the end of the wire rope when it is removed from the boom and to which a socket mounting portion can be attached to which the shared wire socket to which the hook main body portion is not connected can be attached.

(6)
A crawler crane comprising: a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit; a machine base frame disposed on the traveling section and having a base end of a column rotatably attached to an upper surface thereof; a boom device attached to a tip end of the column; and an outrigger device that can be attached to and detached from the machine base frame, the crawler crane being capable of being disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device,
The boom device includes a boom that can be raised and lowered relative to the column, a hook that is attached to a wire rope that has a base end fixed to a winch provided on the column and protrudes from the boom, and a hook-side wire socket that can be connected to a tip end of the wire rope to which the hook is attached,
The base frame of the crawler crane is equipped with a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, a cylinder side wire socket to which the wire rope removed from the hook side wire socket can be connected, a socket mounting portion attached to the hoisting cylinder and to which the cylinder side wire socket can be attached, and a cylinder base that is arranged below the hoisting cylinder and on which the hoisting cylinder with the other end removed from the boom can be placed.

(7)
The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
The crawler crane according to (5) or (6), wherein the cylinder stand includes a stand frame that faces the upper and side surfaces of the headlight.
(8)
The crawler crane according to any one of (5) to (7) above, further comprising a cylinder fixing member for fixing the hoisting cylinder placed on the cylinder stand to the cylinder stand.

REFERENCE SIGNS LIST 1 crawler crane 2 travelling section 21 crawler unit 21a crawler frame 21b crawler belt 21c driving wheel 21d driven wheel 22 drive unit 22a driver's seat 22b frame section 23 crawler unit hanging section 3 socket mounting section 31 support bracket section 31a support side main body section 31b support side first flange section 31c support side second flange section 31d support side first insertion hole 31e support side second insertion hole 32 connecting bracket section 32a connecting side main body section 32b connecting side first flange section 32c connecting side second flange section 32d mounting section side pin insertion section 32e connecting side first insertion hole 32f connecting side second insertion hole 33 mounting section side hole section 4 machine base frame 41 column 42 winch 43 hoisting cylinder 44 Description of the Reference Number 45 Outrigger mounting bracket 46 Headlamp 5 Socket fixing member 51 Fixing member main body 51a Fixing member side retaining hole 52 Socket fixing pin 6 Boom device 61 Boom 62 Boom side hanging portion 63 Boom mounting pin 7 Cylinder stand 71 Stand frame 71a First side frame portion 71b Second side frame portion 71c Top frame portion 71d Frame side bolt hole 72 Flange portion 72a Flange side bolt hole 73 Stay portion 74 Cushioning member 75 Frame side through hole 8 Outrigger device 81 Outrigger side hanging portion 9 Cylinder fixing member 91 Hook portion 92 Belt portion 10 Hook 11 Hook main body portion 11a Main body side pin insertion portion 11b Main body side hole portion 11c Rope receiving portion 12 Shared wire socket 12a Cylinder portion 12b Socket side pin insertion portion 12c Socket side hole portion 12d Socket side holding hole portion 13 Hook side wire socket 13a Socket tip holding portion 13b Rope holding portion 13c Socket cylinder portion 13d Rope receiving groove TR Linear member W Wire rope SB Socket holding member

Claims (12)

A crawler crane includes a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit, a base frame arranged on the traveling section and having a base end of a column rotatably attached to an upper surface thereof, a boom device attached to the tip end of the column, and an outrigger device that can be attached to and detached from the base frame, and the crawler crane can be disassembled into the traveling section, the base frame, the boom device, and the outrigger device, and the method of disassembling the base frame and the boom device comprises:
The boom device includes a boom that can be raised and lowered relative to the column, and a hook that is attached to a tip of a wire rope that is fixed at a base end to a winch provided on the column and protrudes from the boom,
The hook includes a hook body portion that holds an object to be loaded and a shared wire socket that is attached to a tip of the wire rope and can connect the hook body portion,
the base frame includes a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, and a cylinder stand that is disposed below the hoisting cylinder and is capable of supporting the hoisting cylinder whose other end has been detached from the boom;
a wire rope having the shared wire socket attached thereto from the boom; attaching a socket mounting portion to which the shared wire socket can be attached to the hoisting cylinder; attaching the shared wire socket to the socket mounting portion while slackening the wire rope with the winch; removing the hoisting cylinder from the boom while tensioning the wire rope with the winch; and placing the hoisting cylinder on the cylinder stand by slackening the wire rope with the winch. The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
The cylinder stand includes a stand frame that faces an upper surface and a side surface of the headlamp,
A method for disassembling a crawler crane as described in claim 1, wherein in the process of using the winch to slacken the wire rope and place the hoisting cylinder on the cylinder stand, the hoisting cylinder is placed on the cylinder stand with the stand frame facing the top and side of the headlight. The method for disassembling a crawler crane according to claim 1 or claim 2 further includes a step of fixing the hoisting cylinder to the cylinder stand using a cylinder fixing member that fixes the hoisting cylinder to the cylinder stand. A crawler crane includes a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit, a base frame arranged on the traveling section and having a base end of a column rotatably attached to an upper surface thereof, a boom device attached to the tip end of the column, and an outrigger device that can be attached to and detached from the base frame, and the crawler crane can be disassembled into the traveling section, the base frame, the boom device, and the outrigger device, and the method of disassembling the base frame and the boom device comprises:
The boom device includes a boom that can be raised and lowered relative to the column, a hook that is attached to a wire rope that has a base end fixed to a winch provided on the column and protrudes from the boom, and a hook-side wire socket that can be connected to a tip end of the wire rope to which the hook is attached,
the base frame comprises a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, a cylinder side wire socket to which the wire rope detached from the hook side wire socket can be connected, a socket attachment portion attached to the hoisting cylinder and to which the cylinder side wire socket can be attached, and a cylinder stand disposed below the hoisting cylinder and capable of supporting the hoisting cylinder having the other end detached from the boom,
a wire rope that has been removed from the hook side wire socket while the boom device is still attached to the base frame; a hook that has been removed from the wire rope; a wire rope that has been removed from the hook side wire socket and is now removed from the boom; a wire rope that has been removed from the hook side wire socket and now is now removed from the boom; The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
The cylinder stand includes a stand frame that faces an upper surface and a side surface of the headlamp,
A method for disassembling a crawler crane as described in claim 4, wherein in the process of using the winch to slacken the wire rope and place the hoisting cylinder on the cylinder stand, the hoisting cylinder is placed on the cylinder stand with the stand frame facing the top and side of the headlight. The method for disassembling a crawler crane according to claim 4 or claim 5 further includes a step of fixing the hoisting cylinder to the cylinder stand using a cylinder fixing member that fixes the hoisting cylinder to the cylinder stand. A crawler crane comprising: a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit; a machine base frame disposed on the traveling section and having a base end of a column rotatably attached to an upper surface thereof; a boom device attached to a tip end of the column; and an outrigger device that can be attached to and detached from the machine base frame, the crawler crane being capable of being disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device,
The boom device includes a boom that can be raised and lowered relative to the column, and a hook that is attached to a tip of a wire rope that is fixed at a base end to a winch provided on the column and protrudes from the boom,
The hook includes a hook body portion that holds an object to be loaded and a shared wire socket that is attached to a tip of the wire rope and can connect the hook body portion,
the base frame includes a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, and a cylinder stand that is disposed below the hoisting cylinder and is capable of supporting the hoisting cylinder whose other end has been detached from the boom;
A crawler crane in which the hoisting cylinder is attached to the end of the wire rope when it is removed from the boom and to which a socket mounting portion can be attached to which the shared wire socket to which the hook main body portion is not connected can be attached. The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
8. The crawler crane according to claim 7, wherein the cylinder stand includes a stand frame that faces an upper surface and a side surface of the headlight. The crawler crane according to claim 7 or 8, further comprising a cylinder fixing member for fixing the hoisting cylinder placed on the cylinder stand to the cylinder stand. A crawler crane comprising: a traveling section having a crawler unit for traveling and a drive device for driving the crawler unit; a machine base frame disposed on the traveling section and having a base end of a column rotatably attached to an upper surface thereof; a boom device attached to a tip end of the column; and an outrigger device that can be attached to and detached from the machine base frame, the crawler crane being capable of being disassembled into the traveling section, the machine base frame, the boom device, and the outrigger device,
The boom device includes a boom that can be raised and lowered relative to the column, a hook that is attached to a wire rope that has a base end fixed to a winch provided on the column and protrudes from the boom, and a hook-side wire socket that can be connected to a tip end of the wire rope to which the hook is attached,
The base frame of the crawler crane is equipped with a hoisting cylinder having one end connected to the column and the other end attached to the boom for raising and lowering the boom, a cylinder side wire socket to which the wire rope removed from the hook side wire socket can be connected, a socket mounting portion attached to the hoisting cylinder and to which the cylinder side wire socket can be attached, and a cylinder base arranged below the hoisting cylinder and capable of supporting the hoisting cylinder whose other end has been detached from the boom. The machine frame further includes a headlight capable of illuminating a direction in which the traveling unit moves forward,
11. The crawler crane according to claim 10, wherein the cylinder stand includes a stand frame that faces an upper surface and a side surface of the headlight. The crawler crane according to claim 10 or 11, further comprising a cylinder fixing member for fixing the hoisting cylinder placed on the cylinder stand to the cylinder stand.

Images