JP2018062778A - Receiving stand of construction equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receiving stand of construction equipment capable of easily supporting construction equipment the lower end side of which is inserted into a casing installed in the ground.SOLUTION: The receiving stand of construction equipment includes: a base unit including two base members which are disposed on both sides of the casing being separated from each other in a first horizontal direction, and each of which is disposed along a second horizontal direction perpendicular to the first horizontal direction; and two receiving units including digit members each of which is bridged between the two base members which are supported in a movable manner in the second horizontal direction by means of the two base members.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to construction equipment cradle.

At construction sites, there are cases where a long construction equipment having a lower end inserted into a casing built in the ground is supported.
For example, in the structural pillar erection method disclosed in Patent Document 1, the guide tube is supported by the upper centering device in a state where the lower end side is inserted into the casing. More specifically, the guide tube has a square cross section and has a bracket on the upper outer side. The upper centering device has a gantry and a girder mounted and fixed on the gantry. Since the bracket of the guide tube is supported by the girders, the guide tube is supported by the upper centering device.

JP-A-9-203401

The girder of the upper centering device described in Patent Document 1 has a lifting bracket, and is suspended and moved by a lifting machine.
Here, as disclosed in Patent Document 1, when the guide pipe is supported by a girder mounted and fixed on a gantry, a lifting machine is required even when the girder is moved below the bracket. For this reason, there is a problem that the operation of moving the girders is complicated, and as a result, the operation of supporting the guide tube with the girders is complicated.
In addition, when supporting the guide tube with a girder, the number of times the girder is moved is not so high, but when supporting other construction equipment with a girder, the girder may be moved frequently. is there. For this reason, it is desirable that the work of supporting the construction equipment with the girder is easy.

  In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a construction equipment cradle that can easily support construction equipment having a lower end inserted in a casing installed in the ground. There is.

(1) A cradle for construction equipment according to at least one embodiment of the present invention,
In a construction equipment cradle capable of supporting construction equipment whose lower end is inserted into a cylindrical casing installed in the ground,
A base unit including two base members disposed on both sides of the casing so as to be spaced apart from each other in a first horizontal direction and disposed along a second horizontal direction orthogonal to the first horizontal direction;
And two receiving units each including a girder member spanned between the two base members and supported by the two base members so as to be able to travel in the second horizontal direction.

  According to the construction equipment cradle of the above configuration (1), since the two receiving units each including the girder member are supported by the base member so as to be able to run, it is easily achieved by running the girder member on the base member. Can be moved. For this reason, according to the construction equipment cradle having the configuration (1), the construction equipment can be easily supported by the girder member.

(2) In some embodiments, in the configuration (1),
The construction equipment is
A small diameter part,
Adjacent to the small diameter portion, and having an engagement portion having a larger diameter than the small diameter portion,
The girder member has a notch corresponding to the plan view shape of the small diameter portion of the construction equipment.

  According to the above configuration (2), the notch corresponding to the plan view shape of the small diameter portion of the construction equipment is formed in the girder member, and the two girder members have the small diameter portion in a state where the small diameter portion is received in the notch. Can be pinched. In this state, if the engaging portion of the construction equipment is placed on the girder member, the construction equipment can be easily supported. Further, in this manner, the gap formed between the two girder members can be reduced by sandwiching the small diameter portion with the small diameter portion received in the notch. For this reason, it can prevent parts, such as a tool and a bolt, falling through the clearance gap between two girder members.

(3) In some embodiments, in the configuration (1) or (2),
The base unit includes vertical movement means for moving the two base members up and down,
By moving the two base members up and down, the two receiving units can be transferred between the two base members and the casing.

  According to the configuration (3), the two girder members can be supported by the casing by lowering the height direction positions of the two base members relative to the casing. For this reason, construction equipment can be supported by a girder member and a casing. Since the weight of construction equipment, for example, excavation equipment and drive equipment used in the reverse construction method is several tens of tons, when the construction equipment is supported by the base unit, high strength is required for the base unit. In this respect, if the construction equipment is supported by the casing, the base unit is not required to have such high strength, and the base unit can be reduced in weight and cost.

(4) In some embodiments, in any one of the configurations (1) to (3),
A plurality of floor members are further provided between the two base members.
According to the said structure (4), a work floor can be formed on a casing by arrange | positioning a floor member. For this reason, the worker can easily work around the construction equipment supported by the girder member by being placed on the floor member.

(5) In some embodiments, in the configuration (4),
Of the plurality of floor members, floor members arranged adjacent to each other in the second horizontal direction are hinged to each other.
According to the configuration (5), the floor members are hinge-coupled, and the plurality of floor members can be easily arranged by developing the folded floor members. Further, the plurality of floor members can be easily removed by folding the plurality of deployed floor members.

  According to at least one embodiment of the present invention, there is provided a pedestal for construction equipment capable of easily supporting construction equipment having a lower end inserted in a casing installed in the ground.

It is a figure which shows roughly the cradle of the construction equipment which concerns on one Embodiment of this invention with an excavation apparatus, a drive device, and a crane. It is sectional drawing which shows a cradle roughly with the excavator supported by the cradle, and the lower end part of the drive device connected with a digger. It is a figure which shows a cradle schematically, (a) is a top view (top view), (b) is a front view. It is a side view which shows a cradle schematically. It is a perspective view which shows schematically the receiving stand in the state where the receiving unit adjoins mutually. It is a perspective view which shows roughly the receiving stand of the state in which the receiving unit was mutually spaced apart. It is a figure showing roughly the state where two girder members are supported by a casing by moving up and down two base members. It is a perspective view showing roughly a cradle in which a plurality of floor members are arranged. It is a side view which shows the modification of a floor member schematically, (a) shows the state (evacuation state) by which the floor member was folded, (b) is the state (use condition) by which the floor member was expand | deployed Is shown. It is a front view which shows roughly the cradle which concerns on a modification.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. Absent.
For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.
For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.
For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.

  FIG. 1 is a diagram schematically showing a construction equipment cradle 6 according to an embodiment of the present invention, together with an excavation apparatus 1, a drive apparatus 3, and a crane 5. The excavator 1 and the drive device 3 can excavate the pile hole 7 by, for example, a reverse method. When the excavator 1 and the drive device 3 are used, the wall surface of the pile hole 7 is protected by a cylindrical casing 9. Even if it is a construction method other than the reverse construction method, for example, the earth drill construction method or the all casing construction method, at least the opening of the pile hole 7 is protected by the casing 9 installed in the ground.

  FIG. 2 is a cross-sectional view schematically showing the cradle 6 together with the excavator 1 supported by the cradle 6 and the lower end portion of the driving device 3 connected to the excavator 1. 3A and 3B are diagrams schematically showing the cradle 6, where FIG. 3A is a plan view (top view) and FIG. 3B is a front view. FIG. 4 is a side view schematically showing the cradle 6. FIG. 5 is a perspective view schematically showing the cradle 6 in a state where the receiving units are adjacent to each other. FIG. 6 is a perspective view schematically showing the cradle 6 in a state where the receiving units are separated from each other.

As shown in FIG. 2, the cradle 6 can support construction equipment having a lower end side inserted in a cylindrical casing 9 built in the ground.
In FIG. 2, the cradle 6 supports the excavator 1, but can also support the driving device 3, and can be applied to an excavator having a pile hole 7. The cradle 6 can also be applied to other construction machines. Furthermore, the cradle 6 can be applied to equipment such as a drill pipe and a tremy pipe, and is suitable for supporting a long construction machine and equipment whose length in the longitudinal direction is larger than that in the width direction. . In this specification, construction machines and equipment are collectively referred to as construction equipment.

As shown in FIGS. 2 to 6, the cradle 6 includes a base unit 11 and a receiving unit 13.
The base unit 11 has two base members 15 arranged in parallel to each other. Specifically, the two base members 15 are disposed on both sides of the casing 9 so as to be spaced apart from each other in the first horizontal direction, and are disposed along a second horizontal direction orthogonal to the first horizontal direction. . For example, the two base members 15 can be made of H-section steel or the like.

  The two receiving units 13 each include a girder member 17 spanned between the two base members 15. For example, the girder member 17 can be made of H-section steel. The two receiving units 13 are supported by the two base members 15 so as to be able to travel in the second horizontal direction, that is, in the longitudinal direction of the base member 15. For this purpose, for example, wheels 19 are attached to both ends of the two girder members 17 on the lower side. The two base members 15 are supported by the two base members 15 via wheels 19 so as to be able to travel. Each receiving unit 13 can be driven by human power only, for example, when pressed by an operator.

According to the cradle 6 having the above-described configuration, since the two receiving units 13 each including the girder member 17 are supported by the base member 15 so as to be able to run, the girder member 17 can be easily moved on the base member 15. Can be moved. For this reason, according to the cradle 6 having the above-described configuration, construction equipment such as the excavator 1 can be easily supported by the girder member 17.
In particular, the drill pipe and the tremy pipe need to be repeatedly added according to the depth of the pile hole 7, and the drill pipe and the tremy pipe need to be supported repeatedly. Even in such a case, according to the cradle 6 configured as described above, the girder member 17 can be easily moved by running on the base member 15, and the drill pipe and the tremy pipe are easily supported. be able to.
Preferably, four or more wheels 19 in total are attached to each girder member 17 so that each girder member 17 can stand on its own.

In some embodiments, the construction equipment supported by the cradle 6, such as the excavator 1, is adjacent to the small diameter portion 21 and the small diameter portion 21 and has a larger diameter than the small diameter portion 21, as shown in FIG. 2. Engaging portion (large diameter portion) 23. As shown in FIGS. 3A, 5, and 6, the girder member 17 has a notch 25 corresponding to the planar view shape of the small diameter portion 21.
For example, the small diameter portion 21 is configured by a hollow cylindrical tube portion, and the engaging portion 23 is configured by a flange, a rib, a bracket, or the like. When the small-diameter portion 21 has a cylindrical shape, the planar view shape of the notch 25 formed in each girder member 17 is a semicircular shape. For example, the diameter r of the circular hole formed by the two notches 25 is not less than 100 mm and not more than 500 mm (see FIG. 3).

  According to the above configuration, the notch 25 corresponding to the shape of the small-diameter portion 21 in plan view is formed in the girder member 17, and the two girder members 17 receive the small-diameter portion 21 in the notch 25 and the small-diameter portion 21. Can be sandwiched. And if the engaging part 23 of the excavation apparatus 1 is mounted on the girder member 17 in this state, the excavation apparatus 1 can be easily supported. Further, as described above, the gap formed between the two girder members 17 can be reduced by sandwiching the small diameter portion 21 in a state where the small diameter portion 21 is received in the notch 25. For this reason, it is possible to prevent parts such as tools and bolts from falling through the gap between the two girder members 17.

In some embodiments, as shown in FIGS. 2 to 6, the base unit 11 includes vertical movement means 27 for moving the two base members 15 up and down. The vertical movement means 27 can be configured by, for example, a plurality of journal jacks 29 or hydraulic jacks.
Here, FIG. 7 is a view schematically showing a state in which the two girder members 17 are supported by the casing 9 by moving the two base members 15 up and down. As shown in FIG. 7, by moving the two base members 15 up and down, the two receiving units 13 can be transferred between the two base members 15 and the casing 9.

According to the above configuration, the two girder members 17 can be supported by the casing 9 by lowering the height direction positions of the two base members 15 relative to the casing 9. For this reason, the construction equipment can be supported by the girder member 17 and the casing 9. Since the weight of the construction equipment, for example, the excavator 1 and the drive device 3 used in the reverse construction method is several tens of tons, the base unit 11 needs to have high strength when the construction equipment is supported by the base unit 11. The In this regard, if the construction equipment is supported by the casing 9, the base unit 11 is not required to have such high strength, and the base unit 11 can be reduced in weight and price.
Further, the vertical movement means 27 can level the two base members 15.

In some embodiments, as shown in FIGS. 2 to 6, the base member 15 includes an upper stage 31 and a lower stage 33 each having a square frame shape. The upper stage 31 includes two base members 15 and is separated from the lower stage 33 in the vertical direction. Between the upper stage 31 and the lower stage 33, a plurality of journal jacks 29 as vertical movement means 27 are interposed. Further, between the upper stage 31 and the lower stage 33, for example, a plurality of guide members 37 having a double-pipe structure are interposed as guide means 35 for guiding the vertical movement of the upper stage 31 relative to the lower stage 33. Be dressed.
Although not shown, the upper stage 31 and the lower stage 33 may have shackle brackets that are suspended by the crane 5. Each receiving unit 13 may also have a shackle bracket for hanging by the crane 5.

  In some embodiments, as shown in FIGS. 2 to 6, plate members are attached as stoppers 38 on both sides of the upper stage 31 in the second horizontal direction so that the girder member 17 does not fall from the base member 15. It has been. The stopper 38 projects upward from the upper stage 31.

In some embodiments, the cradle 6 further includes a plurality of floor members 39 each spanned between the two base members 15 in parallel with the girder member 17 as shown in FIG. Each floor member 39 has a rectangular shape that is long in the first horizontal direction in plan view. Each floor member 39 is constituted by, for example, a frame member (not shown) and a plate member 40 attached to the frame member, and can endure even if a person is in the center with both ends supported. It has a strong strength.
According to the above configuration, the work floor 41 can be formed on the casing 9 by disposing the floor members 39 on both sides of the girder member 17 supporting the construction equipment. Both ends of the floor member 39 are supported by the two base members 15, and a stable work floor 41 can be configured. For this reason, the operator can easily work around the construction equipment supported by the girder member 17 by, for example, connecting the excavator 1 and the drive device 3 by being on the floor member 39. be able to.

  In some embodiments, as shown in FIGS. 2-6, the base member 15 is placed in the longitudinal direction of the base member 15 so that the floor member 39 does not move relative to the base member 15 in the first horizontal direction. A frame member 42 extending along the frame is attached. The frame member 42 projects upward from the base member 15. On the other hand, the movement of the floor member 39 relative to the base member 15 in the second horizontal direction is restricted by the receiving unit 13 and the stopper 38.

FIG. 9 is a side view schematically showing a modified example of the floor member 39, in which (a) shows a state in which the floor member 39 is folded (a retracted state), and (b) shows an unfolded state of the floor member 39. The state (used state) is shown.
In some embodiments, as shown in FIG. 9, among the plurality of floor members 39, the floor member 39 arranged adjacent to the second horizontal direction, that is, the longitudinal direction of the base member 15, is hinged 43. They are hinged to each other.
According to the said structure, the floor member 39 is hinge-coupled and the several floor member 39 can be arrange | positioned easily by expand | deploying the folded several floor member 39. FIG. In addition, the plurality of floor members 39 can be easily removed by folding the deployed floor members 39.

In some embodiments, the cradle 6 further includes guide means 44 for guiding the traveling of the receiving unit 13.
According to the above configuration, the guide unit 44 prevents the receiving unit 13 from falling from the base member 15. For example, the guide means 44 is constituted by a guide member 45 extending in the up-down direction. The guide member 45 can be made of, for example, L-shaped steel. The guide member 45 is attached to the beam member 17 and extends from the beam member 17 to the side of the base member 15.
A rail that can be engaged with the wheel 19 may be attached to the base member 15 as the guide means 44.

  In some embodiments, although not shown, the cradle 6 further includes connection means for connecting the two receiving units 13 that support the construction equipment to each other. By connecting the two receiving units 13 to each other by the connecting means, it is possible to reliably prevent the construction equipment from being detached from the receiving unit 13.

FIG. 10 is a front view schematically showing a cradle 47 according to a modification.
When the height of the two base members 15 relative to the casing 9 is changed and the girder member 17 is supported by the casing 9, if the floor member 39 is directly disposed on the base member 15, the floor member 39 and the casing 9 interfere with each other. . Therefore, in the cradle 47 shown in FIG. 10, a stepped portion 49 is provided on both sides of the base member 15, and the floor member 39 can be disposed on the stepped portion 49. In this case, the stepped portion 49 also has a function as the guiding means 44 that guides the traveling of the girder member 17.
In addition, when changing the height of the two base members 15 with respect to the casing 9, in addition to using the vertical movement means 27, when the casing 9 is gripped by the all-around rotary excavator 51, a power jack or the like, The height of the casing 9 may be changed by the all-around rotary excavator 51 or a power jack.

Finally, the present invention is not limited to the above-described embodiments, and includes forms obtained by modifying the above-described embodiments and forms obtained by appropriately combining these forms.
For example, the cradle 6 is disposed on the all-round rotary excavator 51 in FIG. 2, but may be directly installed on the ground.

DESCRIPTION OF SYMBOLS 1 Excavator 3 Drive device 5 Crane 6,47 Construction equipment cradle 7 Pile hole 9 Casing 11 Base unit 13 Receiving unit 15 Base member 17 Girder member 19 Wheel 21 Small diameter part 23 Engagement part 25 Notch 27 Vertical movement means 29 Journal Jack 31 Upper stage 33 Lower stage 35 Guide means 37 Guide member 38 Stopper 39 Floor member 40 Plate member 41 Work floor 42 Frame member 43 Hinge 44 Guide means 45 Guide member 49 Step part 51 All-round rotary excavator

Claims (5)

In a construction equipment cradle capable of supporting construction equipment whose lower end is inserted into a cylindrical casing installed in the ground,
A base unit including two base members disposed on both sides of the casing so as to be spaced apart from each other in a first horizontal direction and disposed along a second horizontal direction orthogonal to the first horizontal direction;
Construction equipment comprising two receiving units each including a girder member spanned between the two base members, and supported by the two base members so as to be able to travel in the second horizontal direction. Cradle. The construction equipment is
A small diameter part,
Adjacent to the small diameter portion, and having an engagement portion having a larger diameter than the small diameter portion,
2. The construction equipment cradle according to claim 1, wherein the girder member has a cutout corresponding to a shape of the small-diameter portion of the construction equipment in a plan view. The base unit includes vertical movement means for moving the two base members up and down,
The construction equipment according to claim 1 or 2, wherein the two receiving units can be transferred between the two base members and the casing by moving the two base members up and down. Cradle. The pedestal for construction equipment according to any one of claims 1 to 3, further comprising a plurality of floor members respectively spanned between the two base members. The pedestal for construction equipment according to claim 4, wherein floor members arranged adjacent to each other in the second horizontal direction among the plurality of floor members are hinged to each other.

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