JP5609067B2 - Load support frame and load support method - Google Patents

Description

The present invention, a load support cradle relates及 Beauty load supporting method, in particular, effective load support cradle to support the outrigger mobile crane for such cranes, it relates 及 Beauty load bearing process.

  On the ground where the strength of the soft ground is insufficient, when lifting heavy objects with a mobile lifting machine such as a crane truck, it is necessary to keep the lifting machine in a stable state during the lifting operation. By installing a floor plate such as an iron plate and placing an outrigger on top of this floor plate, the load from the lifting machine (the weight of the lifting machine and the weight of the lifting object) is distributed over a wide area, and per unit area The lifting machine is kept in a stable state (for example, see Patent Document 1).

  In addition, in the case of a mobile lifting machine such as a large crane vehicle, there is a risk that the floor plate such as an iron plate may be bent due to the load from the lifting machine, so the H-section steel is divided into a plurality of stages (for example, three stages). By using a load support frame that has been assembled and formed in the shape of a cross beam, this load support frame is installed on the top of the floor plate laid on the ground, and an outrigger is placed on the top of the H-shaped steel on the top of this frame, The load from the lifting machine is sequentially transmitted to the lower H-section steel and dispersed over a wide area via the lowermost H-section steel to reduce the load per unit area.

Japanese Patent Laid-Open No. 7-117640

  By the way, when a heavy load is lifted by a lifting machine using the load support frame having the above-described configuration, the height H from the ground to the loading point of the uppermost H-section steel is increased, so that a large crane It cannot be applied when there is a limit to the height that can be loaded, such as an outrigger of a mobile lifting machine such as a car.

The present invention has been made in view of the above-described conventional problems, and even if there is a limit on the height at which the load can be loaded, such as an outrigger of a mobile lifting machine such as a large crane vehicle. a possible application, it is possible to disperse the load from the crane to a wide area, and an object thereof is to provide a load support cradle, the 及 beauty load bearing manner.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a load support frame for supporting a load from an outrigger of a lifting machine, and includes a plurality of grounding materials provided in a grounded state on the ground, and a steel frame spanned over the grounding material. And a support member made of a steel frame attached in a state where a predetermined gap is formed between the beam member and the ground below the beam member, and a load from the outrigger is applied to the upper part of the support member. It is characterized by supporting.

  According to the load support frame of the present invention, the load from the outrigger is supported by the support material, and is transmitted from the support material to the grounding material via the beam material, and is distributed over the entire grounding surface of the grounding material. Is done. In this case, since the support material is attached to the lower side of the beam material, the support material for supporting the outrigger can be arranged at a position lower than the beam material, and a large crane vehicle with a limited loading height. Even an outrigger of a hoist such as a hoist can be supported.

  Moreover, in this invention, the said support material is being fixed to the state attached to the lower side of the said beam material via the fastening means, It is characterized by the above-mentioned.

  According to the load support frame of the present invention, the support material is fixed to the lower side of the beam material via the fastening means, and the fixed state by the fastening means is released, thereby lowering the beam material. Will be separated from the side.

  Furthermore, in the present invention, the fastening means may be a screw fastening body or a vise for fastening the beam material and the support material.

  According to the load support frame of the present invention, the support material is fixed to the lower side of the beam member by a screw fastening body or a vise, or by releasing the fastening state by the screw fastening body or the vise. , Will be separated from the underside of the beam.

  Furthermore, in the present invention, the grounding material may be made of steel frame material, concrete, or stone.

  According to the load support frame of the present invention, the grounding material made of steel, concrete, or stone is installed on the ground, the beam material is bridged over the grounding material, and the support material is placed under the beam material. Will be attached.

  Furthermore, the present invention uses the load support pedestal according to any one of claims 1 to 4, and places an outrigger of a lifting machine on an upper part of the support material of the load support pedestal, and loads the load from the outrigger. It is transmitted to the grounding material via the support material and the beam material, and is dispersed via the grounding material.

  According to the load support method of the present invention, the load from the outrigger is supported by the load support frame by installing the load support frame on the ground and placing the outrigger of the lifting machine on the support material of the load support frame. It is transmitted to the beam material through the material, transmitted from the beam material to the grounding material, and distributed over the entire ground contact surface with the ground of the grounding material, so that the load per unit area can be reduced.

As described above, the load support cradle of the invention, according to 及 beauty load support method, the support member for supporting the outrigger crane is mounted on the lower beam member bridged on the top of the ground material Therefore, the loading point for supporting the load from the outrigger can be arranged below the beam material. Therefore, it is possible to support even the outriggers of large lifting machines with restrictions on the height of the loading point, and the load from the lifting machines can be distributed over a wide area to reduce the load per unit area. be able to.

It is the schematic plan view which showed one Embodiment of the load support stand by this invention. It is A arrow directional view of FIG. It is a B arrow line view of FIG. It is explanatory drawing which showed the relationship between the screw insertion hole of the grounding material of the load support base of FIG. 1, and the screw insertion hole of a beam material. It is explanatory drawing which showed the relationship between the screw insertion hole of the beam material of the load support base of FIG. 1, and the screw insertion hole of a support material. It is a schematic perspective view of the load support stand by this invention. It is the elements on larger scale of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of a load support frame according to the present invention. This load support frame 1 is effective for supporting the outrigger 26 of a lifting machine when lifting a heavy object on a ground 30 having a low strength such as a soft ground by a mobile lifting machine such as a crane truck. Is.

  That is, as shown in FIGS. 1 to 3, the load support gantry 1 according to the present embodiment is installed on an upper portion of a base plate 25 such as an iron plate laid on the upper portion of the ground 30, and is attached to the ground 30 via the base plate 25. A grounding material 2 to be grounded, a beam material 8 laid over the top of the grounding material 2, and a support material 14 provided in a state of being supported below the beam material 8.

  The grounding material 2 is formed from a steel frame material such as H steel, concrete, or stone (natural stone, artificial stone, etc.). In the present embodiment, a pair of grounding materials 2 are provided on the top of the floor plate 25. 2 are arranged so as to be parallel to each other at a predetermined interval in the horizontal direction.

  Each grounding material 2 has a horizontal columnar shape such as a rectangular cross-section, a cross-section I-shape, or a cross-section H-shape in which the upper and lower surfaces are horizontal and parallel to each other. In this embodiment, Each grounding material 2 is formed into a horizontal columnar shape by joining together the flange edges of two H-shaped steels 3 and 3 having the same length, height, width and thickness by welding. The entire lower surface 6 a of the lower flange 6 of each H-section steel 3 of the material 2 is brought into contact with the upper portion of the floor plate 25.

  A portion surrounded by the upper and lower flanges 4 and 6 and the web 7 of each H-shaped steel 3 of each grounding material 2 has a plurality of plate-like reinforcing ribs at predetermined intervals along the longitudinal direction, if necessary. 22 is integrally provided by welding, and the strength of each grounding member 2 is increased by the plurality of reinforcing ribs 22. In this case, you may comprise so that the intensity | strength of each grounding material 2 may be raised further by filling the mortar 23 between arbitrary adjacent reinforcement ribs 22 and 22, and making it solidify.

  As shown in FIG. 4, a pair of screw insertion holes 5 a and 5 b are provided in the width direction at predetermined intervals along the longitudinal direction in the flange 4 at the top of each H-section steel 3 constituting each grounding material 2. The pair of screw insertion holes 5a and 5b of any one of the two H-shaped steels 3 and 3 and any one pair of screw insertions provided in a beam member 8 (described later) bridged over the grounding member 2. The holes 12a and 12b are configured to be able to be matched, and a screw fastening material 21 as a fastening means 20 is inserted between the matched screw insertion holes to be fastened, so that a beam to be described later is formed above each grounding material 2. The material 8 is fixed in a suspended state.

  Specifically, the pitch in the longitudinal direction of the screw insertion holes 5 of each H-section steel 3 of each grounding material 2 is a1, and the pitch between the pair of screw insertion holes 5a, 5b of the two H-section steels 3, 3 is b1 is a longitudinal pitch a2 of the screw insertion 12 of the H-shaped steel 9 of the beam member 8 to be described later, and when the pitch of the pair of screw insertion holes 12a, 12b in the width direction is b2, a1 = b2, A screw insertion hole 5 is provided in the upper flange 4 of each H-section steel 3 of each grounding material 2 so as to satisfy the relationship of b1 = a2, and a screw is provided in the lower flange 11 of the H-section steel 9 of each beam member 8. An insertion hole 12 is provided.

  When each grounding material 2 is composed of concrete, stone or the like, for example, a screw hole is provided on the top surface of each grounding material 2 so as to satisfy the above-described relationships of a1 = b2 and b1 = a2. This is fastening means 20 in which a screw insertion hole 12 provided in a beam member 8 to be described later spanned on the upper part of the member 2 and a screw hole of each grounding member 2 are matched and the screw insertion hole 12 of the beam member 8 is inserted. By fastening the screw fastening body 21 to the screw hole of each grounding material 2, a beam material 8 to be described later may be fixed over the grounding material 2.

  Each beam member 8 has a horizontal columnar shape such as a rectangular shape, a cross-sectional I shape, or a cross-sectional H shape that has a flat top and bottom surface and is parallel to each other in the present embodiment. The material 8 is composed of an H-shaped steel 9 and has a cross-girder shape with respect to the pair of grounding materials 2 and 2 so as to be parallel to both ends in the longitudinal direction of the upper part of the pair of grounding materials 2 and 2 described above. The beam members 8 are fixed to both ends of the upper portions of the pair of grounding materials 2 and 2 by fastening means 20.

  In a portion surrounded by the upper and lower flanges 10 and 11 of the H-shaped steel 9 of each beam member 8 and the web 13, a plurality of plate-like reinforcing ribs 22 are provided at predetermined intervals along the longitudinal direction as necessary. Are integrally provided by welding, and the strength of each beam member 8 is increased by the plurality of reinforcing ribs 22. In this case, you may comprise so that the intensity | strength of each beam 8 may be further raised by filling the mortar 23 between arbitrary adjacent reinforcement ribs 22 and 22, and making it solidify.

  Each beam member 8 is stretched over the pair of grounding members 2 and 2 so that the flanges 10 and 11 of the H-section steel 9 are arranged vertically, and in this state, the H-section steel 9 of each beam member 8 is provided. The lower flange 11 is fixed to the upper flange 4 of each grounding member 2 by fastening means 20.

  As shown in FIG. 4, a pair of screw insertion holes 12 a and 12 b are provided at both edges of the flange 11 at the lower part of the H-shaped steel 9 of each beam member 8 so as to be symmetrical with respect to the web 13. 8 is provided at a plurality of positions in the longitudinal direction at predetermined intervals, and any two of the pair of screw insertion holes 12a, 12b of each beam member 8 and the longitudinal direction of each grounding member 2 are continuous. The screw insertion holes 5 and 5 are configured to be able to match.

  Specifically, when the pitch in the longitudinal direction of the screw insertion holes 12 of the H-shaped steel 9 of each beam member 8 is a2 and the pitch between the pair of screw insertion holes 12a and 12b is b2, as described above. A1 = b2, b1 = a2 (a1; pitch in the longitudinal direction of the screw insertion hole 5 of each H-shaped steel 3 of the grounding material 2, b1; a pair of screws of the two H-shaped steels 3 and 3 of the grounding material 2 A screw insertion hole 12 is provided in the flange 11 below the H-shaped steel 9 of each beam member 8 so as to satisfy the relationship of the pitch between the insertion holes 5a and 5b.

  Each beam member 8 is bridged over the pair of grounding members 2, 2, and any two pairs of screw insertion holes 12 a, 12 b that are continuous in the longitudinal direction of each beam member 8, and the longitudinal direction of each grounding member 2 The two pairs of screw insertion holes 5a and 5b which are continuous with each other are matched, and the screw fastening material 21 which is the fastening means 20 is inserted between the screw insertion holes 12a to 5a and 12b to 5b and fastened. By doing so, each beam member 8 is fixed over the pair of grounding members 2, 2.

  The screw fastening body 20 includes, for example, a bolt inserted between the matched screw insertion holes, and a nut screwed to the bolt.

  Each support material 14 has a horizontal columnar shape such as a rectangular shape, a cross-section I shape, or a cross-section H shape that is flat in the upper and lower surfaces and parallel to each other. The material 14 is composed of an H-shaped steel 15, and the pair of support materials 14, 14 are parallel to each other at the lower central portion of the pair of beam materials 8, 8, and the pair of beam materials 8, 8 and the grounding material The support members 14 are fixed to the lower center portions of the pair of beam members 8 and 8 by fastening means 20.

  In a portion surrounded by the upper and lower flanges 16 and 18 and the web 19 of each H-shaped steel 15 of each support member 14, a plurality of plate-like reinforcing ribs are provided at predetermined intervals along the longitudinal direction as necessary. (Not shown) are integrally provided by welding, and the strength of each support member 14 is increased by the plurality of reinforcing ribs.

  Each support member 14 is provided on the lower side of the pair of beam members 8 and 8 so that the flanges 16 and 18 of the H-section steel 15 are vertically arranged. In this state, the H-section steel 15 of each support member 14 is provided. The upper flange 16 is fixed to the lower surface of the lower flange 11 of each beam member 8 by fastening means 20.

  For each support member 14, an H-section steel 15 having a height lower than that of the H-section steel 3 constituting each grounding member 2 is used. As a result, when the lower surface of each grounding material 2 is grounded to the upper part of the floor plate 25 on the ground 30, there is a predetermined gap between the lower surface 18 a of the lower flange 18 of each support material 14 and the floor plate 25 on the ground 30. A gap 31 is formed. By forming the gap 31 in this way, the load from the outrigger 26 received by each support member 14 is transmitted to the pair of grounding members 2 and 2 via the pair of beam members 8 and 8, and the pair of grounding members 2. 2 can be dispersed through the entire lower surface 6a (grounding surface) of the lower flange 6.

  In the above description, the H-section steel 15 having a height lower than that of each grounding material 2 is used for the H-section steel 15 of each support material 14. You may use the thing of the same height as 2 H-section steel 3. In that case, a spacer (not shown) having a predetermined thickness is interposed between the lower surface 6 a of the lower flange 6 of each grounding material 2 and the ground 30, and the lower surface of the lower flange 18 of each supporting material 14. What is necessary is just to comprise so that 18a may not contact the baseplate 25 on the ground 30. FIG.

  As shown in FIG. 5, a pair of screw insertion holes 17 a and 17 b are provided at both edges of the flange 16 at the top of the H-shaped steel 15 of each support member 14 so as to be symmetrical with respect to the web 19. 14 at a plurality of predetermined intervals in the longitudinal direction, and any two screw insertion holes 17 and 17 continuous in the longitudinal direction of the H-shaped steel 15 of each support member 14, Any one of the pair of screw insertion holes 12a and 12b is configured to be matched.

  Specifically, when the pitch a3 in the longitudinal direction of the screw insertion hole 17 of the H-shaped steel 15 of each support member 14 is set to be b3 and the pitch between the pair of screw insertion holes 17a and 17b is b3, a2 = b3, b2 = A3 (a2; pitch in the longitudinal direction of the screw insertion hole 12 of the H-shaped steel 9 of the beam 8; b2: pitch between the pair of screw insertion holes 12a and 12b of the H-shaped steel 9 of the beam 8) A screw insertion hole 17 is provided in the upper flange 16 of the H-shaped steel 15 of each support member 14 so as to satisfy the condition.

  Each support member 14 is disposed below the pair of beam members 8, 8, and any two pairs of screw insertion holes 17 a, 17 b that are continuous in the longitudinal direction of the flange 10 at the top of each support member 14, A pair of screw insertion holes 12a, 12b that are continuous in the longitudinal direction of the flange 11 at the bottom of each beam member 8 are matched with each other, and a screw fastening material 21 that is a fastening means 20 is provided between the screw insertion holes. Is inserted and fastened to fix each support member 14 to the lower side of the pair of beam members 8 and 8.

  The screw fastening body 20 includes, for example, a bolt inserted between the matched screw insertion holes, and a nut screwed to the bolt.

  And the load support stand 1 comprised as mentioned above is installed in the upper part of the floor plate 25 installed on the ground 30, as shown in FIGS. 1-3, FIGS. The outrigger 26 is placed on the upper portion of the support material 14 of the load support base 1, and the jack of the outrigger 26 is operated to place it on the load support base 1, so that the lifting machine can be kept in a stable state. In this state, the crane of the lifting machine is operated to lift a heavy object, so that the load from the lifting machine is transmitted from the support material 14 of the load support gantry 1 to the grounding material 2 via the beam material 8 and grounded. It can disperse | distribute to the whole contact surface 6a with the baseplate 25 of the material 2, and can reduce the load per unit area.

  In the load support platform 1 of the present embodiment described above, the beam members 8 and 8 are bridged over the ground members 2 and 2, and the support members 14 and 14 are provided below the beam members 8 and 8. Therefore, the loading point that supports the load from the lifting machine can be positioned below the upper portions of the beam members 8 and 8. Accordingly, the present invention can be applied to the outrigger 26 of a mobile lifting machine such as a large crane vehicle in which the height of the loading point is limited.

  Further, the beam members 8 and 8 are fixed to the upper portions of the ground members 2 and 2 by the screw fastening body 21, and the support members 14 and 14 are supported by the screw fastening body 21 below the beam members 8 and 8. Since the fastening state by the screw fastening body 21 is released, the beam members 8 and 8, the support members 14 and 14, and the grounding members 2 and 2 can be separated from each other. Work and removal work from the site can be performed easily, efficiently in a short time.

  Further, each grounding member 2, beam member 8 and support member 14 are formed of H-shaped steels 3, 9, 15 and a pair of grounding members 2, 2 are paired by a screw fastening body 21 comprising bolts and nuts. Since the beam members 8 and 8 are fixed and the pair of support members 14 and 14 are fixed to the lower side of the pair of beam members 8 and 8 by a screw fastening body 21 including bolts and nuts, And it can be manufactured at low cost.

  In the above description, the load support frame 1 is configured by the two grounding materials 2, 2, the two beam members 8, 8, and the two support members 14, 14. The load support gantry 1 may be configured by two or more grounding materials 2, three or more beam members 8, and three or more support members 14.

  In the above description, the screw fastening body 21 is used as the fastening means 20 for fixing the beam material 8 to the grounding material 2 and the fastening means 20 for fixing the support material 14 to the beam material 8. Instead, a vise (not shown) such as a giant clam vise may be used, and the beam material 8 may be fixed to the grounding material 2 and the support material 14 may be fixed to the beam material 8 by this vise.

  Furthermore, in the above description, the load support platform 1 of the present invention is applied to support the outrigger 26 of a mobile lifting machine such as a crane truck. However, the load support of the present invention is applied to various lifting machines including the outrigger 26. The gantry 1 may be applied, and in this case, the same function and effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Load support stand 2 Grounding material 3 H-shaped steel 4 Upper flange 5, 5a, 5b Screw insertion hole 6 Lower flange 6a Lower surface 7 Web 8 Beam material 9 H-shaped steel 10 Upper flange 11 Lower flange 12, 12a, 12b Screw insertion hole 13 Web 14 Support material 15 H-shaped steel 16 Upper flange 17, 17a, 17b Screw insertion hole 18 Lower flange 18a Lower surface 19 Web 20 Fastening means 21 Screw fastening body 22 Reinforcement rib 23 Mortar 25 Base plate 26 Outrigger 30 Ground 31 Clearance

Claims (5)

A load support frame for supporting a load from an outrigger of a lifting machine,
A predetermined gap is formed between a plurality of grounding materials provided in a grounded state on the ground, a beam material made of a steel frame bridged over the grounding material, and the ground below the beam material And a supporting member made of a steel frame attached in a state where the load is supported, and a load from the outrigger is supported on an upper part of the supporting member.   The load support pedestal according to claim 1, wherein the support member is fixed to a lower side of the beam member via a fastening unit.   The load support pedestal according to claim 2, wherein the fastening means is a screw fastening body or a vise for fastening the beam material and the support material.   4. The load support frame according to claim 1, wherein the grounding material is made of steel frame, concrete, or stone. 5.   5. The load support pedestal according to claim 1 is used, an outrigger of a lifting machine is placed on an upper part of a support material of the load support gantry, and a load from the outrigger is applied to the support material and the beam. A load supporting method, wherein the load is transmitted to the grounding material via a material and dispersed via the grounding material.

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