JP2008308873A - Base for transporting attachment for construction machinery in disassembled state - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a base for transporting an attachment for construction machinery in a disassembled state, which enables a connecting pin for the attachment to be easily inserted into/pulled out from by easily adjusting the inclination of the base even in irregular ground. <P>SOLUTION: The base 20 for transporting the attachment for the construction machinery in the disassembled state is provided with a base body 21 for placing an arm 7 (attachment), and the base body 21 is provided with an outer tube member 35 with a vertically-elongated through-hole. A sliding member 37 is slidably inserted into the outer tube member 35, and a ground contact portion is brought into contact with ground. A jack 40 makes reaction undergone by a reaction undergoing portion 43 which is formed above the outer tube member 35 of the base body 21. The inclination of the base body 21 is adjusted by vertically sliding the sliding member 37. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disassembly and transportation platform for an attachment of a construction machine such as a demolition machine that performs a building demolition work.

  2. Description of the Related Art Conventionally, a construction machine having an attachment that is pin-coupled to a main boom that is connected to a construction machine main body so as to be raised and lowered is used. As this attachment, a so-called separate type or a plurality of booms including an arm to which a tip attachment such as a crusher is connected and a front boom connected between the arm and the main boom are connected. There are ultra-long attachments used for building demolition and the like, and backhoe attachments with a bucket connected to the tip. It is known that by reassembling the attachments that are pin-coupled to these main booms, a single construction machine main body can also be used for building demolition and soil excavation work. Moreover, in a medium-sized or large-sized construction machine, it is necessary to isolate | separate a main boom and an attachment from the problem of transport restrictions, and also to isolate | separate and transport the components of an attachment.

  Since the attachment, the main boom, and the components of the attachment are pin-coupled, when reassembling the attachment, it is necessary to insert and remove connecting pins that connect the attachments.

  However, there is a problem that if a force is applied to the periphery of the connecting pin, it is very difficult to insert and remove the connecting pin.

  Therefore, there is known a disassembly transportation platform for an attachment of a construction machine used when disassembling and transporting an attachment that is pin-coupled to a main boom that is connected to a construction machine main body so as to be freely raised and lowered (for example, Patent Documents). 1).

The above-described dismantling transportation platform is a fixed base that holds the attachment on the mounting table and the mounting table on which the attachment is mounted, and the base end side of the attachment on the mounting table is held at a substantially constant height. Means. With the attachment mounted on the mounting table, the connecting pin can be easily inserted into and removed from the main boom, and the mounting on the trailer and the ease of storage when not in use are improved.
JP 11-193543 A

  However, most of the construction sites where the attachments are disassembled and assembled are rough terrain, and there are slopes and irregularities on the ground. Therefore, in the conventional construction machine attachment disassembly and transportation stand, the attachment mounted on the stand and the construction machine When viewed from the construction machine main body with respect to the main body, there is a case where an inclination occurs in the left-right direction, and the pin hole of the attachment, the pin hole of the main boom, and the pin holes of the components of the attachment may not match. In addition, the center line of the attachment placed on the gantry and the center line of the construction machine main body may be misaligned, and the pin hole may not fit. In particular, when pulling out the connecting pin, if the pin hole is slightly displaced, the connecting pin cannot be pulled out easily, and fine adjustment must be performed to remove the load applied to the connecting pin.

  In such a case, the position of the pin hole can be adjusted by moving the construction machine main body and moving the construction machine main body and raising and lowering the main boom. If it occurs, the angle must be adjusted by laying a square or the like under the frame in accordance with the inclination, and there is a problem that it takes time to disassemble and assemble the attachment.

  The present invention has been made in view of the above points, and an object of the present invention is to easily adjust the inclination of the gantry and easily attach / remove the connecting pin of the attachment even on rough terrain. There is.

  In order to achieve the above object, the present invention provides a height adjusting means for adjusting the inclination of the gantry body.

  Specifically, in the first invention, there is provided a disassembly transportation platform for the attachment of the construction machine used when disassembling and transporting the attachment that is pin-coupled to the main boom that is connected to the construction machine main body so as to be raised and lowered. set to target.

And the above-mentioned disassembly transportation platform is
A gantry body on which the attachment is placed;
An outer cylinder member provided in the gantry body and having a through-hole extending in the vertical direction;
A slide member that is slidably inserted into the outer cylinder member and whose lower end is grounded;
A height adjusting means for receiving a reaction force at a reaction force receiving portion formed above the outer cylinder member in the gantry body and adjusting the inclination of the gantry body by sliding the slide member in the vertical direction; Yes.

  According to the above configuration, the height adjustment means slides the slide member in the vertical direction to adjust the tilt of the gantry main body, so that the pin hole of the attachment and the pin hole of the main boom, or the pins between the components of the attachment Since the holes can be aligned, the attachment can be easily disassembled and assembled. Also, when adjusting the displacement between the center line of the gantry body and the center line of the construction machine body by rotating the construction machine body and sliding the gantry body with the attachment placed on the gantry body, Although a lateral force is applied, the height adjusting means is not directly grounded, and the slide member is grounded. Therefore, the force is transmitted from the slide member to the outer cylinder member and is not directly applied to the height adjusting means. For this reason, failure of the height adjusting means is prevented.

In the second invention, in the first invention,
A sled-like grounding portion is provided at the lower end of the slide member.

  According to the above configuration, by turning the construction machine main body with the attachment placed on the gantry main body, the sled-like grounding portion is slid with a small amount of resistance, and the center line of the gantry main body and the construction machine main body in plan view The deviation from the center line is adjusted.

In the third invention, in the first or second invention,
The height adjusting means is a jack provided on the slide member.

  According to said structure, since the slide member is expanded-contracted by finely adjusting the length of the jack which received the reaction force in the reaction force receiving part, it is easy to adjust the inclination of the gantry body.

In the fourth invention, in the third invention,
The jack is fixed on the slide member.

  According to said structure, since a jack and a slide member interlock | cooperate, while a sliding member is expanded and contracted reliably, even when the load is not applied to a jack, a jack does not slip | deviate from a slide member.

In the fifth invention, in the fourth invention,
The jack is a mechanical jack.

  According to the above configuration, a mechanical jack has a simpler structure and is less likely to fail than a hydraulic jack. Further, unlike the case where a hydraulic cylinder is provided, a hydraulic pressure source is not required and the weight is light.

In a sixth invention, in any one of the first to fifth inventions,
The slide member and the outer cylinder member each have a pin insertion hole for inserting a retaining pin.

  According to the above-described configuration, both of the slide members and the outer cylinder member are fixed by inserting the retaining pins into the pin insertion holes, so that the slide member does not come off during transportation, and the jack can be shrunk for transportation. It becomes possible. Therefore, the overall height during transportation is reduced, and the jack is not damaged by vibration during transportation.

In a seventh invention, in any one of the first to sixth inventions,
The outer cylinder member is provided at four corners of the gantry body.

  According to the above configuration, it is possible to freely change the inclination of the gantry body by adjusting the height adjustment means in the outer cylinder member provided at the four corners of the gantry body, and since the ground is grounded at the four corners, the gantry body Is stable.

In an eighth invention, in any one of the first to seventh inventions,
The outer cylinder member is a part of a vertically extending support member provided on the gantry body.

  According to the above configuration, the configuration is simple and looks good.

  As described above, according to the first aspect of the invention, the slide member, which is slidably inserted into the outer cylinder member provided on the gantry body and whose lower end is grounded, is slid vertically by the height adjusting means. The tilt of the main unit is adjusted. For this reason, it is possible to easily adjust the inclination of the gantry even on rough terrain and prevent the attachment connecting pins from being easily attached even on rough terrain while preventing the height adjusting means from being subjected to a lateral load directly on the height adjusting means. Can be inserted and removed.

  According to the second aspect of the invention, it is possible to adjust the deviation of the center line between the gantry body and the construction machine body by sliding the sled-like grounding portion with a small resistance. For this reason, the connecting pin of the attachment can be inserted and removed more easily.

  According to the third aspect of the invention, the slide member can be freely expanded and contracted by finely adjusting the length of the jack provided on the slide member. Therefore, the tilt of the gantry body can be adjusted more easily with a simple configuration.

  According to the fourth invention, the jack is fixed on the slide member. For this reason, even when a load is not applied to the jack, the jack can be prevented from coming off the slide member.

  According to the fifth aspect of the present invention, since the jack is a mechanical jack having a simple structure, an inexpensive, durable and lightweight attachment for a construction machine attachment can be obtained.

  According to the sixth aspect, the slide member can be fixed to the outer cylinder member by pin coupling. For this reason, transportation can be performed at a low overall height while preventing free fall of the slide member and failure of the jack.

  According to the seventh aspect, the outer cylinder member is provided at the four corners so that the inclination of the gantry body can be freely changed. For this reason, the gantry can be grounded extremely stably even on rough terrain.

  According to the eighth aspect of the invention, by providing the outer cylinder member on the vertically extending support member provided on the gantry main body, a disassembled transportation gantry for the attachment of the construction machine having a simple structure and good appearance can be obtained. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 to FIG. 4 show a disassembled transportation platform 20 for the attachment of the construction machine 1 according to the embodiment of the present invention. In the present embodiment, the disassembled transportation platform 20 is used when disassembling and transporting an attachment of the construction machine 1 described below.

  As shown in FIG. 7, the construction machine 1 includes a lower traveling body 2 and an upper revolving body 3 as a construction machine body that is rotatably mounted on the lower traveling body 2. A main boom 4 is connected to the front portion 3a of the upper swing body 3 so as to be raised and lowered. The main boom 4 can be raised and lowered by a pair of right and left raising and lowering cylinders 5. By connecting various attachments to the main boom 4, the construction machine 1 can be used for various purposes.

  In the present embodiment, a so-called separate boom is connected as an attachment. That is, the front boom 6 is pin-coupled to the front end bracket 4a at the front end of the main boom 4 so as to be rotatable. The front boom 6 can be rotated by a jib cylinder 12 whose tube side is rotatably connected to the abdominal surface of the front boom 6 and whose rod side is rotatably connected to the abdominal surface of the main boom 4 (tip bracket 4a). ing.

  An arm 7 is pin-coupled to an end of the front boom 6 by an arm connecting pin 8. The arm 7 is rotatably connected to the rear surface of the front boom 6 by a pair of arm cylinders 9 in which a rod 9 a is connected to the base end of the arm 7. The arm cylinder 9 may be one.

  An arm top pin insertion hole 11 is formed at the tip of the arm 7. An arm top pin 13 can be inserted into the arm top pin insertion hole 11, and the bucket 10 is pin-coupled via the bucket side link pin 14 a by the arm top pin 13 as a tip attachment. One end of the bucket link 14 is connected to the base end of the bucket 10, and the other end of the bucket link 14 is connected to the tip of the arm 7. The bucket 10 can be rotated by a bucket cylinder 16 whose tube side is rotatably connected to the rear surface of the base end side of the arm 7 and whose rod side is connected to the bucket link 14 by a rod side link pin 15. The tip attachment is not limited to the bucket 10 and may be a crusher or the like.

  As shown in FIGS. 1 to 4, the dismantling and transportation platform 20 includes a platform main body 21 on which the arm 7 is placed. As indicated by a two-dot chain line in FIG. 1, the arm 7 is placed in a state where the bucket cylinder 16 and the bucket link 14 are connected. The gantry body 21 includes side frames 22 that are long in the front and rear sides, and a plurality of cross members are connected to the side frames 22. In front and rear of each side frame 22, support members 23 and 24 extending vertically are provided upright. Two arm support front cross members 25 that support the base end side of the arm 7 are provided in the vicinity of the front support member 23. The arm support front cross member 25 is provided with a rootstock 26 according to the shape of the contact portion of the arm 7. On the front peripheral edge of the gantry main body 21 where the front column member 23 and the arm supporting front cross member 25 are located, a working work platform 27 is erected. The work platform 27 for high places includes a flat floor portion 27a, a handrail portion 27b erected on the outer periphery of the floor portion 27a, and a removable chain 27c provided between the handrail portions 27b. . The platform work platform 27 is provided with a front ladder 28 for a worker to get on and off.

  An arm support rear cross member 29 for supporting the distal end side of the arm 7 is provided in front of the rear column member 24. A rootstock 26 is also provided on the arm supporting rear cross member 29 in accordance with the shape of the contact portion of the arm 7. Further, the rear strut member 24 is connected in the left-right direction by a plurality of reinforcing members 30 (shown in FIG. 2), and the arm support pin insertion hole 11 is supported on the upper reinforcing member 30. 32 is provided. On the left and right outer sides of the rear column member 24, rear ladders 33 are provided for working at high places around the pin support portion 32, respectively.

  As shown in FIGS. 2, 5, and 6, outer cylinder members 35 having through holes 35 a extending in the vertical direction are provided on the left and right outer sides of the front and rear support members 23 and 24, respectively. That is, the outer cylinder member 35 is provided at the four corners of the gantry body 21. The outer cylinder member 35 includes a cylindrical outer cylinder main body 35 b and a connecting member 35 c for connecting the outer cylinder main body 35 b to the front or rear column members 23 and 24. The outer cylinder member 35 may be attached to the front or rear support members 23 and 24 by welding the connecting member 35c, or may be attached by bolt connection. A slide member 37 is slidably inserted into the through hole 35a of the outer cylinder main body 35b. The slide member 37 includes a cylindrical slide portion main body 37a, an upper plate portion 37b having a screw fixing screw hole 38 welded to the upper end of the slide portion main body 37a, and a sled-shaped grounding portion welded to the lower end. 37c. A slide portion side pin insertion hole 37d is formed below the center of the slide portion main body 37a in the vertical direction. An outer cylinder member-side pin insertion hole 35d is formed at the center of the outer cylinder member 35 in the vertical direction so as to correspond to the slide portion side pin insertion hole 37d. A retaining pin 39 can be inserted into the pin insertion holes 37d and 35d. In a state where the retaining pin 39 is inserted into the pin insertion holes 37d and 35d, the bottom surface of the grounding portion 37c and the bottom surface of the gantry body 21 are made to coincide with each other.

  A jack 40 as a height adjusting means is fastened to the upper plate portion 37b of the slide portion main body 37a. That is, the jack 40 is made of a mechanical jack, and a bolt 41 is inserted into a bolt insertion hole 40a provided at a lower end portion thereof and fastened to the jack fixing screw hole 38. The mechanical jack 40 has a simple structure and is less likely to fail than the hydraulic jack 40. Further, unlike the case where a hydraulic cylinder is provided, a hydraulic pressure source is not required and the weight is light.

  A flat reaction force receiving portion 43 is provided above the outer cylindrical member 35 of the front and rear support members 23, 24. When the rod portion 40b of the jack 40 is extended, the tip of the rod portion 40b It is configured to abut against the reaction force receiving portion 43. As a result, the jack 40 receives the reaction force at the reaction force receiving portion 43 and slides the slide member 37 in the vertical direction to adjust the inclination of the gantry body 21.

  As shown in FIG. 1, the side frame 22 is provided with a suspension ring 45 for lifting the gantry body 21. The suspension ring 45 is provided for lifting the disassembled transportation platform 20 alone and for lifting the disassembled transportation platform 20 together with the arm 7.

-Attachment disassembly procedure-
Next, a procedure for disassembling the attachment of the construction machine according to the present embodiment will be described.

  First, as shown in FIG. 7, the bucket 10 is grounded.

  Next, as shown in FIG. 8, after the bucket side link pin 14a is extracted with a pin extraction jig (not shown) provided with a hydraulic cylinder or the like, the bucket cylinder 16 is reduced. Further, the arm top pin 13 is pulled out and the bucket 10 is removed from the arm 7.

  Next, as shown in FIG. 9, the disassembled transportation platform 20 is placed, and the lower traveling body 2 is traveled so that the center line of the arm is aligned with the center line of the disassembled transportation platform 20 in plan view. The swivel body 3 is swung.

  Next, the arm top pin 13 is inserted into the arm top pin insertion hole 11 again.

  Next, as shown in FIGS. 2 and 10, the arm 7 is placed on the rootstock 26 of the arm supporting rear cross member 29 while the arm top pin 13 slightly projecting left and right is aligned with the pin supporting portion 32. The arm support front cross member 25 is placed on the rootstock 26. This facilitates the alignment of the arm 7 and protects the bucket link 14 and the bucket cylinder 16.

  Next, the operation moves to the operation of extracting the arm cylinder pin 9b that connects the rod 9a and the arm 7 of the arm cylinder 9. At this time, the displacement in the front-rear direction between the pin insertion hole 7a on the arm 7 side and the pin insertion hole 9c of the arm cylinder 9 is caused by running the lower traveling body 2, and the displacement in the vertical direction is The positions of the pin insertion holes 7a and 9c can be adjusted by raising and lowering the boom 4. Further, the deviation between the center line of the gantry body 21 in plan view and the center line of the upper swing body 3 is adjusted by turning the upper swing body 3 and sliding the gantry body 21 in the lateral direction (left and right direction). . At this time, the sled-like grounding portion 37c can be slid with a small resistance. Further, although a lateral force is applied to the gantry body 21, the jack 40 is not directly grounded, and the slide member 37 is grounded. Therefore, the force is transmitted from the slide member 37 to the outer cylinder member 35 and directly to the jack 40. Don't join. For this reason, failure of the jack 40 is prevented.

  However, the left and right front strut members 23 and the rear struts when viewed from the front of the construction machine 1 between the pin insertion hole 7a on the arm 7 side and the pin insertion hole 9c of the arm cylinder 9 due to unevenness of the ground or the like. In the member 24, the horizontal inclination due to the height difference remains. In this state, since the arm cylinder pin 9b is loaded, the arm cylinder pin 9b cannot be easily extracted. Therefore, it is necessary to adjust the inclination of the gantry body 21.

  First, the degree of inclination of the gantry body 21 is measured, and it is investigated which of the four corner jacks 40 is expanded or contracted. Each jack 40 extends the rod portion 40 b until it abuts against the reaction force receiving portion 43.

  Then, in order to change the inclination, the retaining pin 39 is removed from the outer cylinder member 35 in the portion that needs to be adjusted.

  Next, the rod portion 40b of the jack 40 that needs to be adjusted is expanded and contracted. Since the jack 40 is fixed to the upper plate portion 37b of the slide member 37, the jack 40 and the slide member 37 are reliably interlocked. At this time, by finely adjusting the length of the jack 40 that receives the reaction force at the reaction force receiving portion 43, the slide member 37 is expanded and contracted, and the inclination of the gantry body 21 is adjusted. For this reason, the inclination of the gantry body 21 can be freely changed by appropriately selecting the jacks 40 in the outer cylinder members 35 provided at the four corners of the gantry body 21 and adjusting the height.

  Then, alignment between the pin insertion hole 7a on the arm 7 side and the pin insertion hole 9c of the arm cylinder 9 is performed, and the load applied to the arm cylinder pin 9b is reduced. Therefore, as shown in FIG. The rod 9a of the arm cylinder 9 is extracted.

  Next, after the two arm cylinders 9 are reduced, the arm connecting pin 8 is pulled out. At this time, since the tilt adjustment of the gantry body 21 has already been performed, the arm connecting pin 8 can be easily pulled out.

  Next, as shown in FIG. 12, the main boom 4 is raised, and the separation of the main boom 4 and the arm 7 is completed.

  Thereafter, each jack 40 is reduced, and a retaining pin 39 is inserted into the pin insertion hole of the slide member 37 and the outer cylinder member 35. Since both are fixed by this, the slide member 37 does not come out during transportation, and the jack 40 can be shrunk and transported. Therefore, the overall height during transportation is reduced, and the jack 40 is not damaged by vibration during transportation.

  Next, a wire is hung on the suspension ring 45 of the dismantling / transportation platform 20 and suspended by a crane, and as shown in FIG. 13, it is placed on the trailer loading platform 46 and transported.

  Next, although not shown, the front boom 6 is separated from the main boom 4 and placed on the trailer and transported.

  In this way, the attachment can be easily disassembled and transported. Conversely, when assembling the attachment, the operation opposite to the above is performed. Also at this time, the arm connecting pin 8 and the arm cylinder pin 9b are smoothly inserted by adjusting the inclination of the gantry body 21.

-Effect of the embodiment-
Therefore, according to the disassembly and transportation platform 20 according to the present embodiment, the slide member 37 slidably inserted into the outer cylinder member 35 provided on the platform body 21 and grounded by the grounding portion 37 c is slid vertically by the jack 40. Thus, the inclination of the gantry body 21 is adjusted. Therefore, it is possible to easily adjust the inclination of the gantry body 21 even on rough terrain and prevent the arm connecting pin 8 or the arm cylinder from being easily applied even on rough terrain while preventing the jack 40 from being directly subjected to a lateral load. The pin 9b can be inserted and removed.

  According to the above-described embodiment, it is possible to adjust the deviation of the center line in plan view between the gantry body 21 and the upper swing body 3 by sliding the sled-like grounding portion 37c with a small resistance. For this reason, the arm connecting pin 8 and the arm cylinder pin 9b can be inserted and removed more easily.

  According to the embodiment, the slide member 37 can be freely expanded and contracted by finely adjusting the length of the jack 40 provided on the slide member 37. For this reason, the inclination of the gantry body 21 can be adjusted more easily with a simple configuration.

  According to the embodiment, the jack 40 is fixed on the slide member 37. For this reason, it is possible to prevent the jack 40 from being detached from the slide member 37 even when no load is applied to the jack 40.

  According to the above-described embodiment, the jack 40 is a mechanical jack 40 having a simple configuration, so that an inexpensive, durable and lightweight disassembling / transporting base 20 can be obtained.

  According to the above embodiment, the slide member 37 can be fixed to the outer cylinder member 35 by pin coupling. For this reason, transportation can be performed at a low overall height while preventing free fall of the slide member 37 and failure of the jack 40.

  According to the said embodiment, the outer cylinder member 35 is provided in four corners, and the inclination of the mount main body 21 can be changed freely. For this reason, the gantry can be grounded extremely stably even on rough terrain.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, the arm 7 that is one of the components of the attachment that is further pin-connected to the front boom 6 that is pin-coupled to the main boom 4, that is, that is pin-coupled to the main boom 4, is provided. Although mounted on the disassembly and transportation platform 20, it is not limited to the arm 7, and an attachment pin-coupled to the main boom 4 itself may be mounted.

  In the above embodiment, the outer cylinder member 35 is provided outside the support members 23 and 24, but may be provided inside the support members 23 and 24. As a result, the disassembled transportation platform 20 having a simple structure and good appearance can be obtained.

  In the above embodiment, the jacks 40 are provided at the four corners. However, the jacks 40 may be provided at three places and fixed at one place. Or you may provide a jack in three places, supporting the disassembly transportation base itself 3 points.

  In the above embodiment, the height adjusting means is a jack, but it may be a spacer or a shim.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

It is a side view which shows the base for the decomposition | disassembly transportation of the attachment of the construction machine concerning embodiment of this invention. It is a rear view of the frame for disassembly transportation. It is a top view of the mount for decomposition | disassembly transportation. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. (A) is the VI section enlarged view of FIG. 5, (b) is VIb-VIb sectional view taken on the line when the slider member of (a) is contracted. It is a side view of the construction machine which earth | grounded the bucket. FIG. 8 is a view corresponding to FIG. 7 in which the tip cylinder is reduced after extracting the link pin. FIG. 8 is a view corresponding to FIG. 7, showing a state in which the construction machine is aligned with the dismantling transportation platform. FIG. 8 is a view corresponding to FIG. 7 showing a state in which an arm is placed on the dismantling / transporting base and the inclination of the disassembling / transporting base is adjusted. FIG. 8 is a view corresponding to FIG. 7 illustrating a state in which the arm cylinder pin is extracted after adjusting the tilt of the gantry body. FIG. 8 is a view corresponding to FIG. 7 illustrating a state in which the arm cylinder is contracted to raise the main boom. It is a side view which shows a mode that the mount for disassembly transport equipped with an arm was mounted on the carrier of the trailer.

Explanation of symbols

1 construction machine 3 upper swing body (construction machine body)
4 Main boom 6 Front boom (attachment)
7 Arm (attachment)
10 bucket (attachment)
21 Stand body 35 Outer cylinder member 35a Through hole 35d Outer cylinder member side pin insertion hole 37 Slide member 37c Grounding part (lower end)
37d Slide portion side pin insertion hole 39 Retaining pin 40 Jack 43 Reaction force receiving portion

Claims (8)

A disassembly and transportation platform for an attachment of a construction machine used when disassembling and transporting an attachment that is pin-coupled to a main boom that is connected to a main body of a construction machine so as to move up and down,
A gantry body on which the attachment is placed;
An outer cylinder member provided in the gantry body and having a through-hole extending in the vertical direction;
A slide member that is slidably inserted into the outer cylinder member and whose lower end is grounded;
A height adjusting means for receiving a reaction force at a reaction force receiving portion formed above the outer cylinder member in the gantry body and adjusting the inclination of the gantry body by sliding the slide member in the vertical direction; A disassembly and transportation platform for attachments of construction machinery, characterized in that In the disassembly transportation platform of the attachment of the construction machine according to claim 1,
A gantry for disassembling and transporting an attachment of a construction machine, wherein a sled-like grounding portion is provided at a lower end of the slide member. In the disassembly transportation platform of the attachment of the construction machine according to claim 1 or 2,
The above-mentioned height adjusting means is a jack provided on the above-mentioned slide member. In the disassembly transportation platform of the attachment of the construction machine according to claim 3,
The above-mentioned jack is fixed on the above-mentioned slide member, The attachment for the decomposition transportation transportation of the attachment of the construction machine characterized by the above-mentioned. In the disassembly transportation platform of the attachment of the construction machine according to claim 4,
The above-mentioned jack is a mechanical jack, and is a frame for disassembling and transporting an attachment of a construction machine. In the disassembly transportation platform of the attachment of the construction machine according to any one of claims 1 to 5,
The above-mentioned slide member and the above-mentioned outer cylinder member are provided with a pin insertion hole for inserting a retaining pin into each other. In the disassembly transportation platform for the attachment of the construction machine according to any one of claims 1 to 6,
The frame for disassembling and transporting an attachment of a construction machine, wherein the outer cylinder member is provided at four corners of the frame body. In the disassembly transportation platform of the attachment of the construction machine according to any one of claims 1 to 7,
The outer cylinder member is a part of a vertically extending support member provided on the gantry body, and the detachable transportation gantry for an attachment of a construction machine.

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