JP5948828B2 - Lifting device used for assembling cargo lift for building demolition work, cargo lift for building demolition work, and assembling method thereof - Google Patents

Description

  The present invention relates to a lifting device used for assembling a cargo lift for building demolition work, a cargo lift for building demolition work, and an assembling method thereof.

  In demolition work of high-rise buildings, a cargo lift is installed facing the outer peripheral surface of the building to be demolished, and the demolition material is lowered from the demolishing target floor to the first floor with the cargo lift (for example, patents) Reference 1). When installing the cargo lift, a tower with a height exceeding the floor to be demolished is constructed by adding several towers.

JP 2007-262688 A

  Here, when installing the cargo lift described in Patent Document 1, it is necessary to lift a tower of several meters above the assembled tower, and it is necessary to install a lifting machine such as a rough terrain crane or a tower crane. However, it was difficult to install a cargo lift when the site was small and there was not enough space to install a lifting machine.

  The present invention has been made in view of the above circumstances, and makes it possible to install a cargo lift for building demolition work without using a lifting machine.

In order to solve the above-described problems, the lifting device according to the present invention assembles the pillars to construct a steel tower that supports the lifting platform of a cargo lift for building dismantling work by connecting a plurality of pillars. A lifting device that lifts up to the head of a steel tower in a stage, the first lifting mechanism for lifting the column body, and a fixed height variable to the steel tower , the first position above the fixed position The support body that supports the lifting mechanism so as to be movable in the lateral direction, the mount that is detachably fixed to the head of the column body to be lifted, and the support that is supported by the mount and the fixing to the steel tower is released A second lifting mechanism for lifting the support.

In the lifting device, the support body is fixed to the steel tower with a variable height, a stand that is lifted by the second lifting mechanism, a column that is detachably fixed to the table, and an upper portion of the column And a rail that supports the first hoisting mechanism so as to be movable in the lateral direction.

  The cargo lift for building demolition work according to the present invention includes the lifting device.

Further, a method for assembling a cargo lift for building demolition work according to the present invention is a method for assembling a cargo lift for building demolition work using the lifting device, wherein the support is mounted in the assembly stage. A step of fixing to the upper part of the steel tower; and a step of lifting the pillar body from the lifting platform by the first lifting mechanism and moving it laterally to place it on the head of the steel tower in the assembly stage; the columnar body, and fixing the head of the tower set upright step, a step of releasing the fixing with respect to the tower of the support, the support, the most significant of the second lifting mechanism And lifting to the upper part of the column body.

  According to the present invention, it is possible to install a cargo lift for building demolition work without using a lifting machine.

It is an elevational view showing a lifting lift for building demolition according to one embodiment. It is a side view (2-2 arrow view of FIG. 1) which shows this raising / lowering lift. It is an elevational view showing a lifting device according to an embodiment. It is a side view (4-4 arrow line view of FIG. 3) which shows this lifting apparatus. It is an elevation view which shows the assembly procedure of a lift. It is an elevation view which shows the assembly procedure of a lift. It is an elevation view which shows the assembly procedure of a lift. It is an elevation view which shows the assembly procedure of a lift.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an elevation view showing a lifting lift 10 for building demolition according to an embodiment, and FIG. 2 is a side view showing the lifting lift 10 (as viewed from arrow 2-2 in FIG. 1). As shown in these drawings, the lifting lift 10 is installed on the outer peripheral surface of the building 1 to be demolished, lifts heavy machinery such as a crawler crane 2 and a crusher, or dismantles a PC plate 3 or the like on the first floor. Or take it down.

  The lift 10 includes a pair of left and right steel towers 20, a lift platform 30 disposed between the left and right towers 20, and a lift mechanism 40 that lifts and lowers the lift platform 30. Each steel tower 20 reaches a height exceeding the floor to be demolished by adding a column 22 of several meters. Each column 22 is a rectangular column-shaped frame, and the upper and lower columns 22 are coupled with bolts. Each steel tower 20 is provided with a guide rail 24, and the lifting platform 30 moves up and down along each steel tower 20. Moreover, each steel tower 20 is connected to the floor of each floor of the building 1 to be demolished by a wall connecting 26.

  The elevating mechanism 40 includes sheaves 42 and 43 installed above and below the steel tower 20, a wire 44 stretched around the sheave 42, a hoisting machine 46 that winds the wire 44, and a reel 48 that winds the wire 44. This is a lifting mechanism with a counterweight system. One end of the wire 44 is connected to the lifting platform 30, and the other end of the wire 44 is connected to a counterweight (not shown). When the hoisting machine 46 winds the wire 44, the lifting platform 30 moves up and down.

  Here, the upper sheave 42 is provided on the platform 102. The abutment 102 is fixed to the steel tower 20 with bolts, but can be moved up and down along the steel tower 20 in a state where the fixing with the bolts is released, and is fixed to the steel tower 20 by changing the position up and down. Can do.

  FIG. 3 is an elevation view showing the lifting device 100 according to an embodiment, and FIG. 4 is a side view showing the lifting device 100 (a view taken along arrow 4-4 in FIG. 3). As shown in these drawings, the lifting device 100 is a device that lifts the column body 22 from the lifting platform 30 to the head of the steel tower 20 at the assembly stage, and includes a platform 102 and a frame 110 fixed to the platform 102. A chain block 104 that lifts the column 22, a chain block 106 that lifts the series 102, and a stand 108 that supports the chain block 106 on the head of the column 22.

  As described above, the pedestal 102 is provided with the sheave 42 and is capable of adjusting the fixing position with respect to the tower 20 in the vertical direction. In addition, the hook 102A for hooking the hook 106A of the chain block 106 for lifting the base 102 is provided on the base 102 (see FIG. 4).

  The frame 110 includes a pair of front and rear columns 111, a beam 112 that couples the upper ends of the pair of front and rear columns 111, a rail 113 that is coupled to the longitudinal center of the beam 112, a pair of front and rear reinforcing columns 114, and a column 111. And a plurality of beams 115 that connect the reinforcing columns 114 and a beam 116 that connects the upper ends of the pair of front and rear reinforcing columns 114.

  The column 111 is arranged on the inner side in the left-right direction (right side in FIG. 3) and on the outer side in the front-rear direction (front side and rear side in FIG. 4) from the tower 20, and the lower part of the column 111 is fixed to the abutment 102 with bolts. ing. Further, the pair of front and rear columns 111 are arranged vertically, arranged side by side in parallel with each other, and extend upward from the head of the column 22 above the column 102 in a state where the platform 102 is fixed to the upper portion of the column 22. ing.

  The beam 112 is horizontally arranged in the front-rear direction at the height of the upper end of the column 111, and the rail 113 is arranged horizontally in the direction orthogonal to the beam 112 (left-right direction). The beam 112 is coupled to the lower central portion in the longitudinal direction. A chain block 104 is supported on the rail 113 so as to be movable along the rail 113.

  The reinforcing pillar 114 is disposed so as to incline in the left-right direction (the right side in FIG. 3) toward the upper side, and the lower part thereof is coupled to the lower part of the column 111. Further, the plurality of beams 115 are arranged horizontally and in parallel to each other, and the support column 111 and the reinforcing column 114 are coupled at a plurality of locations. The beam 116 is horizontally disposed in the front-rear direction at the height of the upper end of the reinforcing column 114, and is coupled to the upper portion of the rail 113.

  The gantry 108 is fixed to the head of the column 22 to be lifted with bolts. The gantry 108 is a triangular frame when viewed in the front-rear direction and a trapezoidal frame when viewed in the left-right direction, and the chain block 106 is fixed thereto. The chain block 106 is disposed such that the hook 106A is positioned on the inner side in the left-right direction of the column 22 (right side in FIG. 3). Further, the gantry 108 is provided with a hook hooking portion 108 </ b> A for hooking the hook 104 </ b> A of the chain block 104 for lifting the column body 22.

  5 to 8 are elevation views showing the assembly procedure of the lift 10. First, as shown in FIG. 5, the column body 22 is placed on the lifting platform 30 in a state where the gantry 108 is tilted so as to face the steel tower 20, and the hook 104 </ b> A of the chain block 104 is hooked to the hook of the gantry 108. Hang on part 108A. At this time, the platform 102 is fixed to the head of the steel tower 20 at the assembly stage. Further, the chain block 104 is positioned on the inner side in the left-right direction (right side in FIG. 5) than the steel tower 20.

  Then, the column body 22 is lifted up to the upper side of the head of the assembled tower 20 by the chain block 104, and the column body 22 is assembled by moving the chain block 104 to the outside in the left-right direction (left side in FIG. 5). Arranged at the head of the tower 20. And the lower part of the suspended column 22 and the head of the steel tower 20 in the assembly stage are coupled with bolts.

  Next, as shown in FIG. 6, the hook 106 </ b> A of the chain block 106 is hooked on the hook hooking portion 102 </ b> A of the series base 102, and the fixation of the series base 102 to the steel tower 20 with the bolt is released. Then, pull up to the top of the uppermost column 22. As a result, the frame 110 and the chain block 104 fixed on the platform 102 are raised to the upper side of the uppermost column 22. Then, the platform 102 is fixed to the upper part of the uppermost column 22 with bolts.

  Next, as shown in FIG. 7, the hook 104 </ b> A of the chain block 104 is hung on the lifting platform 30, and the lifting platform 30 is pulled up to the upper floor by the chain block 104. Then, as shown in FIG. 8, the hook 104A of the chain block 104 is hooked on the hook hooking portion 108A of the gantry 108, the fixing of the column 108 of the gantry 108 with bolts is released, and the gantry 108 is lifted and lowered by the chain block 104. Lower it up. The gantry 108 is fixed to the head of the column 22 connected to the steel tower 20 with bolts.

  As described above, the column body 22 can be lifted up to the upper side of the steel tower 20 and connected to the head of the steel tower 20 at the assembly stage without using a crane. Further, after connecting the column body 22 to the head of the steel tower 20 in the assembly stage, the lifting device 100 can be pulled up to the upper portion of the uppermost column body 22 without using a crane. Further, after lifting the lifting device 100 to the upper part of the uppermost column 22, the lifting / lowering platform 30 is pulled up to the upper floor by the chain block 104, or the frame 108 is lowered onto the lifting / lowering platform 30 by the chain block 104. Can do. Therefore, without using a crane, it is possible to complete the lifting lift 10 by assembling the tower 20 by adding the pillars 22 to the higher floors.

  In addition, the above-mentioned embodiment is for making an understanding of this invention easy, and does not limit this invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof. For example, in the above-described embodiment, the chain block is used as the lifting mechanism, but other lifting mechanisms such as a chain hoist and a winch may be used.

1 Building to be dismantled, 2 Crawler crane, 3 PC version, 10 Lift, 20 Tower, 22 Column, 24 Guide rail, 26 Wall connection, 30 Lift platform, 40 Lift mechanism, 42, 43 Sheave, 44 Wire, 46 Hoisting machine, 48 reels, 100 lifting device, 102 series (base), 102A hook hook, 104 chain block (first lifting mechanism), 104A hook, 106 chain block (second lifting mechanism) , 106A hook, 108 frame, 108A hook hook, 110 frame (support), 111 struts, 112 beams, 113 rails, 114 reinforcing columns, 115 beams, 116 beams

Claims (4)

In order to construct a steel tower that supports a lifting platform of a cargo lift for building demolition work by connecting a plurality of pillars, the lifting device lifts the pillars to the head of the steel tower at the assembly stage,
A first lifting mechanism for lifting the column;
A support that is fixed to the steel tower with a variable height, and supports the first lifting mechanism so as to be movable in the lateral direction above the fixed position;
A stand that is detachably fixed to the head of the column to be lifted;
A second lifting mechanism, which is supported by the gantry and lifts the support that is released from being fixed to the tower;
A lifting device comprising: The support is
A stand that is variably fixed to the steel tower and is lifted by the second lifting mechanism;
A support column removably fixed to the table;
A rail that is arranged on an upper portion of the support and supports the first lifting mechanism so as to be movable in a lateral direction;
The lifting device according to claim 1.   A cargo lift for building demolition work comprising the lifting device according to claim 1. A method for assembling a cargo lift for building demolition work using the lifting device according to claim 1 or 2,
Fixing the support to the top of the tower in the assembly stage;
The column is lifted from the lifting platform by the first lifting mechanism and moved in the lateral direction, thereby placing the column at the head of the steel tower at the assembly stage;
The columnar body, and fixing the head of the tower set standing stage,
Releasing the fixing of the support to the steel tower;
Lifting the support to the top of the uppermost column by the second lifting mechanism;
Assembly method of cargo lift for building demolition work.

Images