Lifting machine and method for assembling the same

Abstract

To provide a lifting machine capable of easily securing the route to transport components to the position of the lifting device.SOLUTION: A lifting machine 1 is the one for installing a component 3. The lifting machine 1 comprises a lifting device 4 to lift the component 3, a first beam 5 where the lifting device 4 is installed, and a pair of leg parts 6 to support the first beam 5. The leg part 6 comprises a second beam 9 extending in the direction intersecting with the first beam 5 in a plan view, a pair of braces 10 to support the second beam 9, and a passage 11 formed between one brace 10 and the other brace 10 among the pair of braces 10 and through which the component 3 can pass.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a lifting machine. [Background technology]

[0002] A conventionally known lifting machine is, for example, the lifting machine (referred to in the document as a "gantry crane") described in Patent Document 1. The lifting machine described in Patent Document 1 is a lifting machine for installing components, and is equipped with a lifting device (referred to in the document as a "hoist

[15] ") that lifts the components, a first beam (referred to in the document as a "running girder

[12] ") to which the lifting device is attached, and a pair of legs (referred to in the document as "support legs

[13] ,

[14] ") that support the first beam. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-43038 Summary of the Invention [Problem to be solved by the invention]

[0004] In the lifting machine described in Patent Document 1, the components must be transported to the location of the lifting device in order to be attached to the lifting device, but depending on the installation location of the lifting machine (for example, a narrow space), it may be difficult to secure a route for transporting the components to the location of the lifting device due to space constraints.

[0005] In view of the above situation, a lifting machine capable of easily securing a path for transporting a member to the position of a lifting device is provided. and assembly method of the lifting machine is being requested. [Means for solving the problem]

[0006] A feature of the present invention is a lifting machine for installing a member, comprising: a lifting device for lifting the member; a first beam to which the lifting device is attached; and a pair of legs for supporting the first beam, wherein the legs include a second beam extending in a direction intersecting the first beam in a plan view; a pair of pillars for supporting the second beam; a pair of bases connected to the lower ends of each of the pair of pillars; and a passage formed between one pillar and the base and the other pillar and the base of the pair of pillars, through which the member can pass; the base extends from the lower end of the pillar toward the first beam side and the opposite side of the first beam along the extension direction of the first beam, and has a plurality of casters for allowing the legs to stand on their own and for allowing the legs to move; The length of the portion of the base extending from the lower end of the column to the side of the first beam is set to be shorter than the length of the portion of the base extending from the lower end of the column to the opposite side of the first beam, The first beam can be connected to and disconnected from the second beam while the leg is in a self-supporting state.

[0007] Furthermore, in the present invention, it is preferable that the length of the portion extending from the lower end of the support at the base to the side of the first beam is set to be shorter than the length of the portion extending from the lower end of the support at the base to the opposite side of the first beam. Furthermore, in the present invention, it is preferable that the length of the portion extending from the lower end of the support at the base to the side of the first beam is set to be shorter than the length of the portion extending from the lower end of the support at the base to the opposite side of the first beam. difference Furthermore, in the present invention, it is preferable that the length of the portion extending from the lower end of the support at the base to the side of the first beam is set to be shorter than the length of the portion extending from the lower end of the support at the base to the opposite side of the first beam. Furthermore, in the present invention, it is preferable that the length of the portion extending from the lower end of the support at the base to the side of the first beam is set to be shorter than the length of the portion extending from the lower end of the support at the base to the opposite side of the first beam. According to this characteristic configuration, the member can be easily transported to the position of the lifting device by passing through the passage. For example, even if there is no space on either side of the extension direction of the second beam around the lifting machine, the member can be easily transported to the position of the lifting device by passing through the passage. In other words, a path for transporting the member to the position of the lifting device can be easily secured. According to this characteristic configuration, the lifting machine can be easily assembled by connecting the first beam to the second beam, and can be easily disassembled by disconnecting the first beam from the second beam. Furthermore, in the present invention, it is preferable that the caster is provided in a portion extending from the lower end of the support pillar at the base toward the first beam, and the caster is provided in a portion extending from the lower end of the support pillar at the base to the opposite side of the first beam. Furthermore, in the present invention, it is preferable that one of the pair of bases has a mounting portion provided in a portion extending from the lower end of the support column at the base to the opposite side of the first beam, on which a generator for operating the lifting device can be placed.

[0008] Furthermore, in the present invention, it is preferable that the second beam is provided across the upper end of the one pillar and the upper end of the other pillar, and the leg portion is formed into an approximately gate-shaped shape by the second beam and the pair of pillars.

[0009] According to this characteristic configuration, the width of the passage is ensured, so that even large components can pass through the passage.

[0010] Furthermore, in the present invention, it is preferable that the support column is configured to be extendable and contractible.

[0011] According to this characteristic configuration, the height of the lifting machine can be easily adjusted by extending and contracting the support pole.

[0012]

[0013]

[0014] Furthermore, in the present invention, it is preferable that the second beam is releasably connected to the support column.

[0015] According to this characteristic configuration, the lifting machine can be easily assembled by connecting the second beam to the support column, and the lifting machine can be easily disassembled by disconnecting the second beam from the support column.

[0016] Furthermore, in the present invention, it is preferable that the member is a foundation for supporting a platform fence installed on a platform at a railway station.

[0017] Generally, there are many space limitations on train station platforms. According to this characteristic configuration, even in places with many space limitations such as train station platforms, the member can be easily transported to the position of the lifting device by passing through the passageway. Furthermore, a method for assembling a lifting machine of the present invention is directed to a lifting machine for installing a member, the lifting machine comprising: a lifting device for lifting the member; a first beam to which the lifting device is attached; and a pair of legs supporting the first beam, the legs including a second beam extending in a direction intersecting the first beam in a plan view; a pair of struts supporting the second beam; and a pair of bases connected to lower ends of the pair of struts, the bases extending from lower ends of the struts toward the first beam side and the opposite side of the first beam along the extension direction of the first beam, and supporting the legs independently. a plurality of casters for moving the legs and allowing the legs to move, and a passage formed between one of the pair of supports and the other of the pair of supports through which the members can pass, the method for assembling the legs by connecting the second beam to the pair of supports; a leg arrangement process for arranging the pair of legs so that they stand independently using the casters at a predetermined interval; a first beam attachment process for connecting the first beam to the second beam of the pair of legs; and a lifting device attachment process for attaching the lifting device to the first beam. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 1 is a flow chart showing the assembly process of the lifting machine. [Figure 5] 10A and 10B are diagrams illustrating a leg placement step. [Figure 6] FIG. 10 is a diagram showing the first beam mounting step. [Figure 7] 10A and 10B are diagrams showing the lifting device installation process. [Figure 8] FIG. 10 is a diagram showing a strut extension process. DETAILED DESCRIPTION OF THE INVENTION

[0019] An embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3 show a lifting machine 1. The lifting machine 1 is a lifting machine for installing a foundation 3 (corresponding to a "component" according to the present invention) on a platform 2 of a railway station. In the following description, the direction of arrow T is the "track side," the direction of arrow H is the "platform side," the direction of arrow L is the "left side," and the direction of arrow R is the "right side."

[0020] The foundation 3 is a foundation that supports a platform fence (not shown) that is installed on the platform 2. The foundation 3 is a precast concrete member. The location on the platform 2 where the foundation 3 is to be installed is excavated to form an opening 2a.

[0021] The lifting machine 1 includes a lifting device 4 for lifting the foundation 3, a first beam 5 to which the lifting device 4 is attached, and a pair of legs 6 for supporting the first beam 5.

[0022] The lifting device 4 includes a trolley 7 and an electric chain block 8. The trolley 7 is attached to the first beam 5 so as to be movable in the extension direction (left and right direction) of the first beam 5. The electric chain block 8 is configured to be able to move up and down the foundation 3.

[0023] The first beam 5 extends in the left-right direction and is provided across the upper end of the left leg 6 and the upper end of the right leg 6.

[0024] The leg portion 6 includes a second beam 9, a pair of support columns 10, and a passage 11. The leg portion 6 is formed by the second beam 9 and the pair of support columns 10 into a generally gate-like shape.

[0025] The second beam 9 extends in a direction intersecting (orthogonal to) the first beam 5 in plan view. The second beam 9 is provided across the upper end of the support pillar 10 on the track side and the upper end of the support pillar 10 on the platform side. The second beam 9 is connected to the support pillar 10 in a manner that allows it to be disconnected.

[0026] The first beam 5 is releasably connected to the second beam 9. Specifically, the left end of the first beam 5 is releasably connected to the center of the left second beam 9 in the extension direction by a pin P. The right end of the first beam 5 is releasably connected to the center of the right second beam 9 in the extension direction by a pin P.

[0027] The support pillar 10 supports the second beam 9. The support pillar 10 comprises an upper pillar portion 12, a lower pillar portion 13, a base portion 14, and an operating handle 15. The upper pillar portion 12 is configured to be adjustable in height. Specifically, the upper pillar portion 12 is configured to be adjustable in height in three stages (low position P1, middle position P2, and high position P3 shown in Figure 1). In other words, the support pillar 10 is configured to be extendable and retractable. The height of the upper pillar portion 12 can be adjusted by the operating handle 15.

[0028] The base 14 extends in the left-right direction. The base 14 is connected to the lower end of the lower column 13. The base 14 is equipped with a plurality of casters 16 (two in this embodiment) and an adjuster device 17. The lifting machine 1 is configured to be movable by the casters 16. The adjuster device 17 functions as a stopper for the casters 16. By using the adjuster device 17 to suppress the movement of the lifting machine 1, the stability of the lifting machine 1 can be improved.

[0029] The right leg 6 is provided with a mounting portion 19 on which a generator 18 for the electric chain hoist 8 can be placed. The mounting portion 19 is attached to the base 14 on the platform side of the right leg 6.

[0030] A passage 11 through which the foundation 3 can pass is formed between one support 10 and the other support 10 of the pair of supports 10. The passage 11 has a width W1. The width W1 of the passage 11 is synonymous with the distance between the pair of supports 10.

[0031] The base 3 has a width W2 and a length L2. The width W2 of the base 3 is the length in the short direction of the base 3 when viewed in a plane. The length L2 of the base 3 is the length in the long direction of the base 3 when viewed in a plane. The length L2 of the base 3 is greater than the width W1 of the passage 11, but the width W2 of the base 3 is smaller than the width W1 of the passage 11.

[0032] The installation of the foundation 3 using the lifting machine 1 is carried out in the following order. The foundation 3 is transported to the position of the lifting device 4 by the cart 20 (at this time, the foundation 3 and the cart 20 pass through the passage 11 with the width W2 direction of the foundation 3 aligned with the width W1 direction of the passage 11). · Raise the foundation 3 by means of the lifting device 4. The foundation 3 is moved laterally to a predetermined position by the lifting device 4. The foundation 3 is lowered into place by the lifting device 4.

[0033] 4 to 8 show the assembly process of the lifting machine 1. As shown in Fig. 4, the assembly process of the lifting machine 1 includes a leg arrangement process S1, a first beam attachment process S2, a lifting device attachment process S3, and a support extension process S4. The leg arrangement process S1, the first beam attachment process S2, the lifting device attachment process S3, and the support extension process S4 are performed in this order.

[0034] 5, the leg arranging step S1 is a step of arranging the legs 6. The pair of legs 6 are arranged at a predetermined interval (the interval corresponding to the length of the first beam 5 in the extension direction).

[0035] As shown in Fig. 6, the first beam attachment step S2 is a step of attaching the first beam 5 to the leg 6. As described above, the left and right ends of the first beam 5 are respectively connected to the left and right second beams 9 by pins P (see Figs. 1 and 2) in a manner that allows the connection to be released.

[0036] As shown in Fig. 7, the lifting device installation step S3 is a step of installing the lifting device 4 to the first beam 5. Here, since the lifting device 4 is a heavy object, it is difficult to lift the lifting device 4 by hand. In this case, a lifting device (not shown) may be used to lift the lifting device 4.

[0037] As shown in Fig. 8, the support extension step S4 is a step of extending the length of the support 10. If it is not necessary to extend the length of the support 10, the support extension step S4 can be omitted.

[0038] The lifting machine 1 is used on platform 2, but when transporting the lifting machine 1 to platform 2, there is no need to use a road-rail vehicle or the like from the tracks. The lifting machine 1 can be transported disassembled into platform 2 through a latch, and then assembled on platform 2 for use.

[0039] Another embodiment of the present invention will be described below.

[0040] (1) In the above embodiment, the leg portion 6 is formed into a generally gate-like shape by the second beam 9 and the pair of support columns 10. However, the leg portion 6 may be formed into a shape other than a generally gate-like shape as long as it has the passage 11.

[0041] (2) In the above embodiment, the "member" according to the present invention is the foundation 3. However, the "member" according to the present invention is not limited to the foundation 3. In other words, the "member" according to the present invention may be a foundation other than the foundation 3, or may be a member other than a foundation. [Industrial Applicability]

[0042] The present invention can be used in a lifting machine. [Explanation of symbols]

[0043] 1 Lifting machine 2 Home 3 Foundation (components) 4 Lifting equipment 5 First beam 6 legs 9 Second beam 10 posts 11 Passage 14 Base 16 Caster 18 Generator 19 Placement section

Claims

1. A lifting machine for installing a member, a lifting device for lifting the member; a first beam to which the lifting device is attached; a pair of legs supporting the first beam; The leg portion is a second beam extending in a direction intersecting the first beam in a plan view; A pair of columns supporting the second beam; a pair of bases connected to the lower ends of the pair of columns; a passage formed between one support and a base and the other support and a base of the pair of support columns, through which the member can pass; the base portion extends from a lower end of the support column toward the first beam side and the opposite side of the first beam along the extending direction of the first beam, and has a plurality of casters that allow the leg portion to stand on its own and to be movable; The length of the portion of the base extending from the lower end of the column to the side of the first beam is set to be shorter than the length of the portion of the base extending from the lower end of the column to the opposite side of the first beam, A lifting machine in which the first beam can be connected to and disconnected from the second beam while the legs are in a self-supporting state.

2. A lifting machine as described in claim 1, which has a caster provided on a portion extending from the lower end of the support pillar at the base to the side of the first beam, and a caster provided on a portion extending from the lower end of the support pillar at the base to the opposite side of the first beam.

3. A lifting machine as described in claim 1, wherein one of the pair of bases has a mounting portion provided in a portion extending from the lower end of the support column at the base to the opposite side of the first beam, and on which a generator for operating the lifting device can be placed.

4. The second beam is provided across an upper end portion of the one support column and an upper end portion of the other support column, The lifting machine according to any one of claims 1 to 3, wherein the leg portion is formed into a substantially gate-like shape by the second beam and the pair of support columns.

5. The lifting machine according to any one of claims 1 to 3, wherein the support column is configured to be extendable and retractable.

6. The lifting machine according to any one of claims 1 to 3, wherein the second beam is releasably connected to the support column.

7. The lifting machine according to any one of claims 1 to 3, wherein the member is a foundation for supporting a platform fence installed on a platform at a railway station.

8. A lifting machine for installing a member, a lifting device for lifting the member; a first beam to which the lifting device is attached; a pair of legs supporting the first beam; The leg portion is a second beam extending in a direction intersecting the first beam in a plan view; A pair of columns supporting the second beam; a pair of bases connected to the lower ends of the pair of columns; the base portion extends from a lower end of the support column toward the first beam side and the opposite side of the first beam along the extending direction of the first beam, and includes a plurality of casters that allow the leg portion to stand on its own and move; a passage formed between one support column and the other support column of the pair of support columns, through which the member can pass, a step of assembling the leg portion by connecting the second beam to the pair of support columns; a leg arrangement step of arranging the pair of legs by the casters at a predetermined interval so that the legs stand independently; a first beam attaching step of connecting the first beam to the second beam of the pair of legs; a lifting device installation step of installing the lifting device to the first beam.

9. A method for assembling a lifting machine as described in Claim 8, wherein the length of the portion extending from the lower end of the pillar at the base to the side of the first beam is set to be shorter than the length of the portion extending from the lower end of the pillar at the base to the opposite side of the first beam.

10. The support is configured to be extendable and retractable, The method for assembling a lifting machine according to claim 8 or 9, further comprising a strut extension step of extending the length of the strut after the lifting device installation step.

11. A method for assembling a lifting machine as described in claim 8 or 9, wherein the first beam is releasably connected to the second beam.

12. A method for assembling a lifting machine as described in claim 8 or 9, wherein the second beam is releasably connected to the support.

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