JP5248448B2 - Support device for transport of upper swing body and transport method of upper swing body - Google Patents

Description

  The present invention relates to a transport support device and a transport method for transporting an upper swing body that is pivotably mounted on a lower traveling body.

  In a work machine having an upper swinging body that is pivotably mounted on a lower traveling body such as a crawler crane, a side where a crawler belt is provided in order to satisfy dimensional restrictions and weight restrictions when transporting by mounting on a trailer. The frame is transported by being mounted on a trailer or the like with the frame removed from the track frame (see Patent Document 1).

JP 2007-230747 A

  However, as the size of the upper swing body increases, the position of the center of gravity of the upper swing body is biased and becomes unstable when mounted on a trailer or the like.

(1) The upper turning body supporting device according to the first aspect of the invention is transportable on the lower traveling body and includes a frame having a mounting hole for attaching various members. The support device includes a support member that is mounted in the attachment hole and restricts the inclination of the upper revolving unit during transportation, and a fixing unit that fixes the support member to the upper revolving unit.
(2) The invention according to claim 2 is the support device for transporting the upper swing body according to claim 1, wherein the various members are jacks for lifting up the upper swing body or a counterweight. And
(3) The invention according to claim 3 is the support device for transporting the upper rotating body according to claim 1, further comprising adjusting means for adjusting the length of the support member extending downward in the vertical direction. .
(4) According to a fourth aspect of the present invention, in the support device for transporting the upper rotating body according to the first aspect, the upper portion when the support member is not provided when mounted in the attachment hole and fixed by the fixing means. A new tilt fulcrum is formed at a position farther from the center of gravity of the upper swing body than the pivot point of the swing structure in the front-rear direction, and the tilt in the front-rear direction when the upper swing body is transported is restricted. It is characterized by that.
(5) A method of transporting the upper swing structure according to the invention of claim 5 is a method of transporting the upper swing structure including a frame having a jack mounting hole that is pivotably mounted on the lower traveling body and jacks up. The upper revolving unit is jacked up using a jack attached to the mounting hole, the side frame around which the crawler belt is wound is separated from the lower traveling unit, the side frame is separated, and the upper revolving unit is jacked up. Lower the trailer, place the upper swing body on the trailer, remove the jack from the mounting hole, attach the support member that regulates the tilt of the upper swing body during transportation to the mounting hole after removing the jack, The upper revolving unit is transported by a trailer.

  According to the present invention, it is possible to easily realize stabilization of the posture of the upper revolving unit during transportation.

1 is an external view of a construction machine for foundation work that is an example of a work machine to which the present invention is applied. It is a top view when the track frame 12 is viewed from above. It is a figure which shows the state of the construction machine 100 for foundation works which removed each part. It is a figure which shows the state which jacked up the construction machine 100 (swivel body 2) for foundation construction. It is a figure which shows a mode that the side frame 13 is removed from the track frame 12. FIG. It is a figure which shows the construction machine 100 for foundation works which turned the turning body 90 degree | times with respect to the track frame 12 after the side frame 13 was removed. It is a figure which shows a state when a carrier (trailer 61) is made to approach the lower part of the construction machine 100 for foundation works. It is a figure which shows the state which mounted the construction machine 100 for foundation works on the loading platform 61f. It is a figure which shows a mode that the rear jack 21 is removed from the turning frame 8 with the beam 21a. It is a figure when the revolving frame 8 with which the rear jack 21 and the beam 21a are attached is seen from back. It is a figure which shows a mode at the time of attaching the support 150 for transport to the attachment hole 81 after removing the rear jack 21 and the beam 21a. It is a figure which shows the state after fixing the track frame 12 to the loading platform 61f by the wire rope 33 grade | etc.,. It is a figure which shows the support 150 for transportation. It is a figure which shows the mode of attachment of the support 150 for transportation. It is a figure which shows the mode of attachment of the support 150 for transportation. It is a figure which shows the mode of attachment of the support 150 for transportation. It is a figure which shows a modification.

  With reference to FIGS. 1-16, one Embodiment about the support apparatus at the time of transport of the upper revolving structure and the transport method of an upper revolving structure by this invention is described. FIG. 1: has shown the external view of the construction machine for foundation works which is an example of the working machine with which this invention is applied, (a) is a side view, (b) is a front view. For convenience of explanation, the front / rear and left / right directions are defined as shown below. The construction machine 100 for foundation work is a so-called three-point pile driver, a lower traveling body (running body) 1, and an upper revolving body (swivel body) 2 that is mounted on the traveling body 1 so as to be able to swivel. And a working device 3 for driving piles.

  The working device 3 includes a leader 4 erected on the front portion of the revolving body 2, a pair of backstays 5, an auger 6 provided on the front surface of the leader 4 and provided with a screw portion at the tip, and an auger 6 An auger drive device 7 for driving the. A leader bracket 11 that supports the leader 4 is attached to the front end of the revolving frame 8. A counterweight 10 is mounted on the rear end of the revolving frame 8, and a gantry 9 is attached to the rear of the counterweight 10. The gantry 9 is equipped with devices such as a generator and a compressor. Near the rear end of the revolving frame 8, one rear jack 21 is attached to each of the left and right via a beam 21a (not shown in FIG. 1). Although not shown in FIG. 1, front jacks 22 are attached to the leader bracket 11 one by one on the left and right sides via beams 22a.

  In such a construction machine 100 for foundation work, different types of augers 6 are selected according to the construction depth and construction diameter, and the lengths of the leader 4 and the stay 5 are thereby changed. As a result, the weight on the front side of the machine and the position of the center of gravity change. Moreover, the weight of the machine and the position of the center of gravity change depending on the equipment mounted on the gantry 9. For this reason, the weight of the counterweight 10 can be adjusted so as to keep the balance of the entire machine.

  FIG. 2 is a plan view of the track frame 12 as viewed from above. As shown in FIG. 2, the traveling body 1 includes a substantially H-shaped track frame 12 and a side frame 13. A pair of connecting portions 12a are formed on both sides of the track frame 12 so as to project outward, and a pair of left and right side frames 13 are connected to the connecting portions 12a. The side frame 13 includes a crawler belt 13c wound around a drive wheel 13a attached to one end of the side frame 13 and a driven wheel 13b attached to the other end (FIG. 1).

  The foundation construction machine 100 configured as described above has the same configuration as a conventional foundation construction machine. The foundation construction machine 100 is disassembled for transportation as follows, and the disassembly procedure is substantially the same as the disassembly procedure of the conventional foundation construction machine. In disassembling the foundation construction machine 100, first, the auger 6, the auger drive device 7, the leader 4, and the backstay 5 are removed. Then, the counterweight 10 and the like are removed. FIG. 3 is a diagram showing the state of the construction machine 100 for foundation work with each part removed in this way.

  Next, as shown in FIG. 3, a float 31 for increasing the contact area with the ground is installed on the ground below the rear jack 21 and the front jack 22, and the rear jack 21 and the front jack 22 are operated, As shown in FIG. 4, the construction machine 100 (swivel body 2) for foundation work is jacked up. Here, the jack-up amount is such that the gap between the crawler belt 13c and the track roller 13d is about 30 to 40 mm.

  And as shown in FIG. 5, the side frame 13 is removed from the track frame 12 using the auxiliary crane prepared separately. FIG. 6 is a view showing the construction machine 100 for foundation work in which the revolving structure is turned 90 degrees with respect to the track frame 12 after the side frame 13 is removed.

  After removing the side frame 13, as shown in FIG. 7, the carrier (trailer 61) is made to enter the lower part of the foundation construction machine 100. 61a is a traveling wheel of the trailer 61, 61f is a loading platform of the trailer 61, and 62 is a tractor that pulls the trailer 61. The trailer 61 and the tractor 62 are conventional general-purpose products and are not specially modified.

  By retracting the rear jack 21 and the front jack 22 from the state shown in FIG. 7, the construction machine 100 for foundation work is placed on the loading platform 61f as shown in FIG. Note that the square member denoted by reference numeral 32 in FIG. 8 is a fixing member for preventing the trailer 61 from rolling. Next, as shown in FIG. 9, the rear jack 21 and the beam 21a are removed from the revolving frame 8 using an auxiliary crane. As shown in FIG. 10, the rear jack 21 is attached to one end of the beam 21a. The other end of the beam 21 a is pivotally supported by a pin 41 with respect to an attachment hole 81 provided in the turning frame 8. Here, FIG. 10 is a view when the revolving frame 8 to which the rear jack 21 and the beam 21a are attached is viewed from the rear. The beam 21a can be removed from the turning frame 8 by pulling the pin 41 upward. In the present embodiment, the attachment holes 81 are provided at two locations, the upper and lower sides, respectively. For convenience of description, in the following description, the upper mounting hole 81 is represented as a mounting hole 81a, and the lower mounting hole 81 is represented as a mounting hole 81b.

  With the increase in the size of the construction machine 100 for foundation work, each mounted device mounted on the revolving frame 8 also increases in size. However, the increase in the size of each mounted device moves the position of the center of gravity of the revolving structure 2 relative to the position of the track frame 12, so that the construction machine 100 for foundation work may be tilted in the front-rear direction during transportation. There is. Therefore, in the present embodiment, as shown in FIGS. 11 and 12, the transportation support 150 is attached to the attachment hole 81 after the rear jack 21 and the beam 21a are removed. The transport support 150 is a support member for preventing the foundation construction machine 100 from being tilted during transport. When the transportation support 150 is attached, a fulcrum of inclination in the front-rear direction of the foundation construction machine 100 is newly constructed behind the portion of the left end portion of the truck frame 12 shown in FIG. In other words, when the transportation support 150 is attached, it is farther from the center of gravity of the foundation construction machine 100 than the fulcrum of inclination in the front-rear direction of the foundation construction machine 100 when the transportation support 150 is not attached. A new tilt fulcrum is constructed at the position. And the inclination to the front-back direction at the time of transporting the construction machine 100 for foundation works is controlled by this new inclination fulcrum. Details of the structure and attachment of the transport support 150 will be described later.

  After attaching the transport support 150, the front jack 22 and the beam 22 a are removed from the leader bracket 11, and the leader bracket 11 is further removed from the turning frame 8. Although not shown, like the above-described rear jack 21 and beam 21a, the beam 22a is also pivotally supported by a pin with respect to a mounting hole provided in the turning frame 8. The beam 22a can be removed from the revolving frame 8 by pulling this pin upward.

  Thereafter, the track frame 12 is fixed to the loading platform 61f by the wire rope 33 or the like (FIG. 12). This completes preparations for transportation. As described above, the construction machine 100 for foundation work mounted on the trailer 61 is pulled by the tractor 62 and transported to the work site. When the construction machine 100 for foundation work is reassembled after arriving at the work site, it may be assembled according to a procedure reverse to the disassembling procedure described above.

--- About transport support 150 ---
FIG. 13A is a perspective view of the transportation support 150. The transport support 150 includes a support post 151, a sleeve 152, and a sleeve fixing pin 153. The support column 151 includes a cylindrical column 151a. A retaining flange 151b is provided at the upper end of the column 151a, and a plurality of holes 151c through which the sleeve retaining pin 153 is inserted are provided in the cylindrical shaft direction on the side surface of the column 151a. The sleeve 152 is a fixing member having a cylindrical portion 152 a having a cylindrical shape for fixing the support column 151 to the revolving frame 8. A hole 152b through which the sleeve fixing pin 153 is inserted is provided on the side surface of the cylindrical portion 152a. The sleeve fixing pin 153 is a shaft-like member having a head having a diameter larger than that of the shaft portion, and as shown in FIG. 13B, a through-hole extending in the radial direction of the shaft portion near the tip of the shaft portion. 153a is provided.

  The transport support 150 is fixed to the turning frame 8 as follows. First, as shown in FIG. 14, the sleeve 152 is arranged between the mounting hole 81a and the mounting hole 81b after the beam 21a is removed, and the supporting column 151 is mounted on the mounting hole 81a and the sleeve 152 from above the mounting hole 81a. The insertion holes 81b are inserted in this order. Then, as shown in FIG. 15, the sleeve 152 is moved upward along the support column 151, and the highest position possible among the holes 151 c of the support columns 151 provided in a plurality of stages in the height direction. The position of the hole 152b is aligned with the position of the hole 151c, and the sleeve fixing pin 153 is inserted from the holes 152b and 151c on the right side of the drawing to the holes 152b and 151c on the left side of the drawing (FIG. 16). Thereby, when attaching the support 150 for transportation to the turning frame 8, the protrusion amount of the support | pillar 151a below from the attachment hole 81b can be adjusted suitably.

  Then, by inserting another pin 154 into the through hole 153 of the sleeve fixing pin 153 protruding outward from the left side surface of the sleeve 152 in the figure, the sleeve fixing pin 153 is prevented from coming out to the right side in the figure. In addition, since the head of the sleeve fixing pin 153 cannot pass through the hole 152b, the sleeve fixing pin 153 does not fall out to the left in the drawing.

  When the transportation support 150 is fixed to the revolving frame 8 in this manner, the supporting column 151 does not fall down downward because the retaining flange 151b at the upper end abuts against the peripheral edge of the upper end of the mounting hole 81a. Further, even if the swivel body 2 shown in FIG. 12 is inclined in the counterclockwise direction in the figure, the swivel body 2 is further tilted by the upper end portion of the sleeve 152 coming into contact with the lower peripheral edge portion of the mounting hole 81a. To prevent. When the transport support 150 is fixed to the revolving frame 8, the lower end of the support column 151 may be slightly lifted from the upper surface of the loading platform 61f. This is because it is only necessary to prevent the revolving body 2 from tilting to a certain extent.

  Further, since the holes 151c of the support column 151 are provided in a plurality of stages apart in the height direction, when the sleeve 152 is fixed to the support column 151 with the sleeve fixing pin 153, the retaining flange of the support column 151 is fixed. The distance between the lower end surface of 151b and the upper end surface of the sleeve 152 may be larger than the distance from the upper end to the lower end of the mounting hole 81a, and the support column 151 may have play in the vertical direction. However, as described above, it is only necessary to prevent the revolving body 2 from being tilted to a certain extent.

The foundation construction machine 100 described above has the following effects.
(1) For example, like the mounting hole 81 to which the rear jack 21 and the beam 21a are mounted, the transportation support 150 is made using the mounting site of various members such as the holes originally provided in the revolving frame 8. By attaching, it comprised so that the inclination of the rotary body 2 at the time of transportation could be prevented. Thus, the tilt of the swing body 2 during transportation can be prevented without making any new modifications to the swing body 2 (construction machine 100 for foundation work), so that the tilt of the swing body 2 during transportation can be easily and inexpensively. Can be prevented.

(2) The transport support 150 is mounted using the mounting holes 81 to which the rear jack 21 and the beam 21a for jacking up the construction machine 100 for foundation work are mounted. Therefore, the strength of the attachment hole 81 itself and its peripheral part is sufficient, and the tilting of the revolving structure 2 can be reliably prevented during transportation.

(3) Since the mounting hole 81 can be used after the rear jack 21 and the beam 21a are removed during transportation, a wasteful work such as removing equipment from the swivel frame 8 only for mounting the transportation support 150 is performed. There is no need to do so and it is efficient.

(4) A plurality of holes 151c through which the sleeve fixing pins 153 are inserted are provided on the side surfaces of the pillars 151a in the cylindrical axis direction, and when the transportation support 150 is attached to the revolving frame 8, the pillars 151a protrude downward from the attachment holes 81b. It comprised so that quantity could be adjusted suitably. Thereby, the inclination of the turning body 2 at the time of transportation can be prevented effectively. In addition, since a single type of transportation support 150 can handle a plurality of foundation construction machines 100 of different sizes (the height positions of the mounting holes 81 are different), transportation supports of different lengths are supported. There is no need to prepare a plurality of 150 sets, and cost increase due to the preparation of the transportation support 150 can be suppressed.

---- Modified example ---
(1) In the above description, the transport support 150 is attached to the attachment hole 81. However, the above description is an example, and the present invention is not limited to this. For example, as described above, the support column 151a is not fixed to the revolving frame 8 using the sleeve 152 and the sleeve fixing pin 153, but is used using holes provided in the revolving frame 8 as shown in FIG. The strut may be fixed by bolting a strut (post 155) for tilt prevention with a bolt 156 or the like. Reference numeral 155a denotes a bolt hole provided on the column side for adjusting the height position of the column 155.

(2) In the above description, the transport support 150 is mounted using the mounting hole 81 in which the rear jack 21 and the beam 21a are mounted. However, the present invention is not limited to this. For example, instead of the attachment hole 81, a hole for attaching the counterweight 10 may be used.
(3) You may combine each embodiment and modification which were mentioned above, respectively.

  Note that the present invention is not limited to the above-described embodiment, and is transported on the upper swing body including a frame that is pivotably mounted on the lower traveling body and has mounting holes for mounting various members. In the support device, the upper swing body having various structures, comprising: a support member that is mounted in the mounting hole and restricts the tilt of the upper swing body during transportation; and a fixing means that fixes the support member to the upper swing body. Including a supporting device during transportation.

  In addition, the present invention is not limited to the above-described embodiment, and transportation of the upper swing body including a frame having a jack mounting hole that is pivotably mounted on the lower traveling body and jacks up. In the method, the upper turning body is jacked up using a jack attached to the mounting hole, the side frame around which the crawler belt is wound is separated from the lower traveling body, the side frame is separated, and the upper turning body is jacked up. A trailer is entered below the body, the upper swing body is placed on the trailer, the jack is removed from the mounting hole, and a support member that regulates the tilt of the upper swing body during transportation is attached to the mounting hole after removing the jack. It includes various methods of transporting the upper revolving structure characterized by mounting and transporting the upper revolving structure with a trailer.

1 Lower traveling body (traveling body) 2 Upper revolving body (revolving body)
DESCRIPTION OF SYMBOLS 3 Working apparatus 8 Turning frame 12 Track frame 13 Side frame 21 Rear jack 21a Beam 81 Mounting hole 100 Construction machine 150 for foundation work Support 151 for support 151 Sleeve 153 Sleeve stop pin

Claims (5)

In the support device at the time of transportation of the upper swing body including a frame that is pivotably mounted on the lower traveling body and has a mounting hole for mounting various members,
A support member that is mounted in the mounting hole and regulates the inclination of the upper rotating body during transportation;
A support device for transporting the upper revolving structure, comprising a fixing means for fixing the support member to the upper revolving structure. In the support apparatus at the time of transportation of the upper revolving structure according to claim 1,
The above-mentioned various members are jacks for jacking up the upper swing body or a counterweight. In the support apparatus at the time of transportation of the upper revolving structure according to claim 1,
A support device for transporting the upper-part turning body, further comprising an adjusting means for adjusting a length of the support member extending downward in the vertical direction. In the support apparatus at the time of transportation of the upper revolving structure according to claim 1,
When the support member is mounted in the mounting hole and fixed by the fixing means, the center of gravity of the upper swing body is more than the fulcrum of the tilt in the front-rear direction of the upper swing body when the support member is not provided. A support device for transporting the upper revolving structure, characterized in that a fulcrum of a new inclination is formed at a position far from the position to restrict the tilt in the front-rear direction when the upper revolving structure is transported. In the method of transporting the upper swing body including a frame that is pivotably mounted on the lower traveling body and has a jack mounting hole for jacking up,
Jack up the upper rotating body using the jack attached to the attachment hole,
Separating the side frame around which the crawler belt is wound from the lower traveling body,
The side frame is separated, and a trailer is allowed to enter under the upper revolving body jacked up,
Placing the upper swivel body on the trailer and removing the jack from the mounting hole;
Attach a support member that regulates the inclination of the upper swing body during transportation to the mounting hole after removing the jack,
A method for transporting an upper swing body, wherein the upper swing body is transported by the trailer.

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