JPH06313363A - Elevating type rotary crane with roof - Google Patents

Abstract

PURPOSE:To prevent to make pillars and the like on the way of construction as an obstacle of conveying equipment and materials, and to continue the work even in a bad weather. CONSTITUTION:A swivel base 3 and a rotary boom 2 extending almost horizontal on the swivel base 3 are set on the upper side at the center of a building plane 1, a roof 4 to cover the building plane 1 is held at the upper side of the swivel base 3, and an elevating device 5 to move the swivel base 3 up and down is provided at the lower side of the swivel base 3. As a result, the work can be carried out even in a bad weather. And since pillars, beams, and the like on the way of construction don't make as an obstacle for conveying equip and materials when they are conveyed by a crane, the efficiency and the safety of the work can be secured, and the construction work of a building can be automated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof hoisting and lowering crane, and a roofing hoisting and lowering crane which enables work even in bad weather such as rain and snow.

[0002]

2. Description of the Related Art Conventionally, at a construction site such as a building, a tower crane is installed on the uppermost floor of a building under construction, and the tower crane's wire is wound, unwound, and the boom is undulated to reach the destination on the construction site. Transports materials and equipment.

[0003]

However, since the tower crane is exposed to the sky when carrying materials and the like by the conventional tower crane described above, it is not possible to carry out work in the event of rainfall or snowfall. Even if an attempt was made to attach a roof above the crane, the boom could be hindered and a temporary roof could not be installed, so it was not possible to switch to the all-weather method. In order to solve this, it is conceivable to install a tower crane outside the building and install a retractable temporary roof on the uppermost floor of the building during construction of the building, but according to the working speed of the tower crane Not only is it difficult to open and close a part, but there is also the problem that rain and snow fall from the open roof part, which is not a sufficient solution.

The present invention has been made in view of the above problems, and an object thereof is to elevate and swivel with a roof so that a pillar or the like in the process of building does not hinder the transportation of materials and equipment and can work even in bad weather. Is to provide a crane.

[0005]

In order to achieve the above object, the present invention provides a swivel base and a swivel boom extending in a substantially horizontal direction on the swivel base above a central portion of a plane of a building. The gist is a roof-mounted hoisting and lowering crane equipped with a roof that covers the floor of the building, and a hoisting device for hoisting and lowering the swivel below the swivel.

[0006]

According to the present invention, the swing boom swings in the plane on the swivel base, and the circle of the building is almost entirely covered in the circle drawn by the swing. The swing boom is equipped with a hoist that travels along the swing boom, and the hoist travels to transport materials and equipment to each assembly point on the building plane. The roof of the swivel base and swivel boom is covered with a roof, so work can be performed even in bad weather.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a roof hoisting slewing crane according to an embodiment of the present invention, FIG. 2 is a plan view of a roof hoisting slewing crane according to this embodiment and a building in which it is installed, and FIG. 3 is the same front view. It is a figure. In FIG. 2, reference numeral 1 is a plane of a building under construction, and in FIG. 1, that is, a building plane, 2 is a swing boom for lifting and transporting materials and equipment while swinging in a substantially horizontal plane. A twin-shaped swing boom is used in. 3 is a swivel base that supports the twin-shaped swivel boom 2 and is a drive mechanism for rotating the twin-shaped swivel boom 2, 4 is a roof supported on the upper surface of the swivel base 3 and covers the entire building plane, and 5 is a swivel Stand 3
It is an elevating device which is provided to support the swivel base 3 from below, and elevates the twin-shaped swivel boom 2, the swivel base 3, and the roof 4.

Further, 6 is an upper mast having a telescopic device such as a hydraulic cylinder for supporting the swivel 3 at the top of the building, and 7 is a hydraulic cylinder provided below the upper mast 6 for supporting the swivel 3. A middle mast that incorporates a telescopic device such as 8 is a main mast that is provided below the middle mast 7 and that incorporates a telescopic device such as a hydraulic cylinder that supports the swivel 3. 9 is an upper outrigger that is provided at the upper end of the middle mast 7 and obtains a reaction force from the building frame when the upper mast and the main masts 6 and 8 are expanded and contracted. 10 is a reaction force when the middle mast 7 is expanded and contracted, which is provided at the upper end of the main mast 8. Is a middle outrigger that is obtained from the building frame, and 11 is a lower outrigger that is provided at the lower end of the main mast 8 and that obtains a reaction force from the building body when the middle mast 7 expands and contracts. A lifting and lowering device 5 is constituted by a control and drive device (not shown) for operating the upper, middle, and main masts 6, 7, 8 and the upper, middle, and lower outriggers 9, 10, 11. ing.

The roof 4 has a rectangular plane shape, and its long sides extend in the long side direction of the building plane 1 to cover the building and the twin swing boom 2, and are set to have a length dimension.
The short side is set to have substantially the same length dimension as the short side of the building plane 1. In FIG. 2, a circle drawn when the twin-shaped swing boom 2 is swung is indicated by a symbol C, but as is clear from this figure, the twin-shaped swing boom 2 is located in the short side direction of the building plane 1. When it coincides with the above, the twin swing boom 2 is in a shape that most protrudes from the building when seen in a plan view, and a hatched portion 12 in the figure serves as a material / material carrying area on the ground. Reference numeral 13 is a pillar that forms a structure as a building, 1
4 is a beam supported by the pillars 13, and 15 is a ground on which a building is built.

As is apparent from FIGS. 1 and 2, the twin-shaped swivel boom 2 is formed into an elongated rectangular frame structure by connecting a pair of long beams 16 and a pair of short beams 17, and the swivel base 3 is formed. It is installed so as to straddle it and attached to the swivel base 3. A rail 19 is attached to a lower portion of the long beam 16 of the twin-shaped swing boom 2.
A hoist 22 having a wire 20 and a hook 21
Is mounted so that it can travel and constitutes a traveling crane.
Further, on the inner surface of each long beam 16 of the twin-shaped swing boom 2,
A rack device 23 extending from both end portions of the long beam 16 to the vicinity of the central portion is provided so as to face each other, and traveling devices 24 each having a gear mechanism incorporated therein are paired and engaged with each other. , Traveling device 2
A cross beam 25 is connected between the four. Further, a sheave 26 is provided at a substantially central portion of the cross beam 25. Further, a winch 27 for winding and unwinding the wire is installed at a position near the center of the twin swing boom 2, and a wire 28 is wound around the winch 27 and the wire 28 is directed toward the cross beam 25. It extends, wraps around the sheave 26, and hangs downward. A hook 29 is attached to the tip of the wire 28 to form a lifting crane. The hoisting crane is provided on both sides of a connecting portion with the swivel base 3, which is the central portion of the twin-shaped swivel boom 2.

The swivel base 3 includes a support plate 30 connected to the upper mast 6 of the lifting device 5, a rotary plate 31 rotatably provided above the support plate 30, and a fixed plate provided above the rotary plate 31. A plate 32, and the twin-shaped swivel boom 2 is attached to the rotary plate 31 to rotate integrally, while the fixed plate 32
A tower 33 is assembled on the roof, and the roof 4 is supported on the tower 33. The reference numeral 34 represents the rotary plate 3
1 is a drive device that engages with 1 to drive the swivel base 3 to rotate.

The operation of the roof-mounted hoisting and swinging crane having the above structure will be described below. First, prepare materials such as pillars, beams, joists, floor members, outer wall panels, and other assembly machines, and various machines in the material / material carrying-in area 12 indicated by diagonal lines within a circle C shown in FIG. 2 on the ground. . Next, the drive unit 34 is driven to rotate the swivel base 3, and the twin swing boom 2 is rotated to the position shown in FIG. And
The traveling device 24 is operated to travel along the rack device 23, the cross beam 25 is moved to an appropriate position in the direction of the long beam 17 and the winch 27 is operated to wind down the wire 28, and a lifting crane is used. Transport materials and equipment to the top floor of the building. In this case, two twin beams 1
Since 6 has a symmetrical shape around the swivel base 3, it is possible to simultaneously lift the equipment from two directions, and it is easy to secure the balance of the entire twin swivel boom 2. The various equipment and materials carried to the top floor of the building are further transported to the respective assembly points of the building using a traveling crane, and the vehicle on the construction floor is assembled by another means. Even in this case, the pillar 13, the beam 14, and the roof 4 which are being built
Since Noyagura 33 does not hinder the transportation of materials and equipment, work efficiency and safety can be improved.

In addition to or in parallel with the transportation and assembling operations, the lifting operation of the roof-mounted elevating and lowering crane by the elevating device is performed. The upper outriggers 9 for performing this crane lifting work are installed on the floor 35 on the uppermost floor where the construction of the demolition work is completed, and the middle and lower outriggers 10 and 11 can be installed with the middle mast extended most. Install at 36 and 37.
Then, as the construction progresses, by pulling up and moving the main mast 8 to the upper floor, the construction of the upper floor can be performed sequentially.

[0014]

As described above, according to the present invention, a swivel base and a swing boom extending in a substantially horizontal direction on the swivel base are installed above the central portion of the building plane, and the roof covering the building plane is located above the swivel base. It is possible to work even in bad weather because it is equipped with a lifting device for lifting the swivel under the swivel. In addition, since the pillars and beams in the middle of construction do not hinder the transportation of materials and equipment during crane transportation, work efficiency and safety can be improved and automation of building construction work can be achieved. Various effects can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a roof swing elevator crane according to an embodiment of the present invention.

FIG. 2 is a plan view showing a state where the roof hoisting and swinging crane according to the embodiment is installed in a building under construction.

FIG. 3 is a front view showing a state where the roof hoisting and swinging crane according to the embodiment is installed in a building under construction.

[Explanation of symbols]

 1 Building Plane 2 Twin-shaped Swing Boom 3 Swiveling Base 4 Roof 5 Lifting Device 12 Material and Equipment Loading Area

Claims (1)

[Claims] 1. A swivel provided above a central portion of a building plane, a swing boom mounted on the swivel and extending in a substantially horizontal direction on the swivel, and a roof supported above the swivel and covering the building plane. An elevating and lowering-type swing crane with a roof, which is provided below the swivel base to support the swivel base and lifts and lowers the swivel base.