KR102628253B1 - Stacker system and load dispersion type indoor lifting apparatus of prefabricated steel structure including the same - Google Patents

Abstract

A stacker system and load-distributing indoor lifting equipment for a pre-assembled steel structure including the same are disclosed. The disclosed stacker system includes a pair of first-stage masts, a pair of two-stage masts slidably coupled to the pair of first-stage masts, an electrical panel coupled to the pair of first-stage masts, one for each pair of first-stage masts. A pair of coupled outrigger mounting units, and a fork coupled to the pair of two-stage masts and configured to slide up and down as the pair of two-stage masts slides up and down, one coupled to each of the outrigger mounting units. It includes a pair of front outriggers, a pair of side outriggers one by one coupled to each of the outrigger mounting units, and a pair of rear outriggers one by one coupled to each of the outrigger mounting units.

Description

Stacker system and load dispersion type indoor lifting apparatus of prefabricated steel structure including the same}

A stacker system and load-distributing indoor lifting equipment for pre-assembled steel structures including the same are disclosed. More specifically, a stacker system configured to have a self-leveling function, a tipping prevention function, a high load lifting function, and durability, and to act as a load transfer medium when lifting a high load prefabricated steel structure, and a prefabricated steel frame including the same. Disclosed is a load-distributing indoor lifting equipment for a structure.

In order to lift a pre-assembled heavy steel structure (hereinafter simply referred to as a 'module') and install a lower support (or attach a connecting member that can be suspended from the upper part of the structure and installed on the structure) and fix it in the correct position, conventionally, strands were used. A method using a jack up (Strand Jack Up) device has been used. However, it takes a very long time to lift a heavy module using a strand jack-up device, lower it again, and fix it in the correct position. Additionally, in order to use a strand jack-up device, it is essential to install embedded hardware in the frame of the upper beam. There is the inconvenience of having to apply a plate and weld a lug plate. In other words, in order to efficiently apply the existing pre-assembled heavy-duty steel structure installation method, work such as application of embedded steel to the building frame and welding of lug plates must be carried out first. Relatively long work time and fire due to welding must be carried out first. There are safety risks due to the risk of work, reduced work efficiency, and increased work at heights.

In addition, in principle, it is impossible to lift a module in a location where embedded hardware is not installed, and even for RC frames and PC frames, lifting is impossible unless a separate lifting lug plate is installed. As an example, if it is a frame using the PC method, embedded hardware must be installed when manufacturing the PC, and installation can be done through a very complicated manufacturing process, which causes an increase in unit cost and a delay in the manufacturing period. As another example, if the frame part is a steel frame, a lug plate capable of jacking up must be attached to the steel frame, and for this attachment, structural reinforcement work such as a stiffener is required, and Because welding is difficult (sometimes impossible due to concerns about changes in material properties), it is necessary to pre-manufacture the steel frame and then bring it in at a manufacturing plant. As another example, in the case of the LFC and LFG framing method, the LFC and LFG must be manufactured after installing buried hardware in advance at the factory.

In addition, after construction of the frame with embedded hardware, welding of lug plates is required on site, exposure to the risk of fire, etc., and additional personnel such as the placement of fire watchers are required. In addition, in order to bring the lug plate to the site and install it, vertical and horizontal movement must be performed. Additional personnel such as signalmen and guides are required to handle heavy objects, and lifting assistance devices such as forklifts and cranes are also required.

In addition, the wire for strand jack-up must be installed after welding the lug plate, and the jack-up hydraulic device and jig must be installed on the wire after moving the module. This type of wire installation requires a table lift device because it must be installed at a high location, and the weight of the wire is heavy, so many people must be deployed.

In addition, a heavy load transport device such as a forklift is required to move the jack-up hydraulic device and hydraulic pump, and it is also necessary to connect a power source, a hydraulic hose, and a lifting jig.

In addition, the lifting speed is slow, so you have to wait for a long time, and after lifting, the equipment must be disassembled and dismantled in the reverse order of lifting. All work is performed manually, requiring a large number of people and time.

In addition, if the building structure is a steel frame rather than a concrete structure, the strand jack-up device can only be used if it is reinforced with a stiffener or the lug plate is welded in advance to prevent deformation of the steel frame, which may cause thermal deformation in the steel frame material. .

In addition, the cost of renting heavy equipment and construction costs due to hot work are increasing, the number of equipment stored on site is increasing, occupying site space and work space, and incidental costs such as the need to move this equipment as construction progresses. Because there is a lot of work, construction work can become inefficient.

In addition, problems such as long work time, complexity due to the use of long wires for strand jack-up equipment in complex sites, and risk of fire due to welding may occur.

In addition, when storing the lifting jig and then moving it for use, there are inconveniences such as having to move it with a forklift or manpower, or moving the hydraulic device and the hydraulic hose for connecting the hydraulic device and the hydraulic actuator using a forklift. .

One embodiment of the present invention provides a stacker system that has a self-leveling function, a tipping prevention function, a high load lifting function, and excellent durability, and is configured to act as a load transfer medium when lifting a prefabricated steel structure with a high load.

Another embodiment of the present invention provides a load-distributing indoor lifting equipment for a pre-assembled steel structure including the stacker system.

One aspect of the present invention is,

A pair of single masts;

A pair of two-stage masts coupled to the pair of first-stage masts so as to be able to slide up and down;

An electrical panel coupled to the pair of first-stage masts;

A pair of outrigger mounting units each coupled to the pair of first-stage masts; and

A fork coupled to the pair of two-stage masts and configured to slide up and down as the pair of two-stage masts slides up and down,

A stacker system including a pair of front outriggers one by one coupled to each of the outrigger mounting units, a pair of lateral outriggers one by one coupled to each of the outrigger mounting units, and a pair of rear outriggers one by one coupled to each of the outrigger mounting units. Includes.

The pair of front outriggers may be coupled simultaneously or independently to each of the outrigger mounting units one by one to enable forward and backward movement, thereby transmitting the load downward when moving forward.

The fork may include a hole formed on its upper surface.

The pair of lateral outriggers are each independently rotatably coupled to each of the outrigger mounting units, and are either folded horizontally in close contact with each outrigger mounting unit or partially separated from each of the outrigger mounting units in advance. It can be configured to unfold at a determined angle.

The pair of rear outriggers may be independently coupled to each outrigger mounting unit one by one to enable forward and backward movement, thereby transmitting the load downward when moving backwards.

The pair of front outriggers, the pair of side outriggers, and the pair of rear outriggers may have an automatic leveling function with respect to a non-horizontal floor.

The stacker system may further include a first-stage mast reinforcement bar configured to secure the structural safety of the pair of first-stage masts and couple them to each other to prevent deformation.

The stacker system may further include a two-stage mast reinforcement bar configured to secure the structural safety of the pair of two-stage masts and couple them to each other to prevent deformation.

The stacker system may further include an electrical panel.

Another aspect of the present invention is,

Provided is a load-distributing indoor lifting equipment for a pre-assembled steel structure including the stacker system.

The load-distributing indoor lifting equipment of the pre-assembled steel structure includes a mobile cart, a support frame configured to be mounted on the mobile cart, a lifting frame configured to be mounted on the support frame, and a lifting frame configured to be mounted on the support frame downward while supporting the lift frame upward. It may include a plurality of stacker systems configured to lift.

The support frame includes a plurality of horizontal bars arranged side by side and spaced apart from each other, a plurality of vertical bars coupled to ends of the plurality of horizontal bars to connect the ends of the plurality of horizontal bars to each other, and a plurality of horizontal bars and the plurality of horizontal bars. The combination of vertical bars may include a plurality of vertical bars that are vertically spaced apart from each other.

The support frame may further include a plurality of outrigger supports, one by one, coupled to a lower end of each vertical bar so as to protrude outward.

The lifting frame may include a plurality of horizontal bars arranged side by side and spaced apart from each other, and a plurality of vertical bars coupled to the ends of the plurality of horizontal bars to connect the ends of the plurality of horizontal bars to each other.

The lifting frame may further include a plurality of expandable fork supports that are coupled to the lower surface of each vertical bar one by one to protrude outwardly or to be inserted inwardly.

The plurality of expandable fork supports may include pins coupled to their respective lower surfaces.

The load-distributing indoor lifting equipment of the pre-assembled steel structure may further include a communication line stored inside the support frame and the lifting frame and configured to be connected to the entire plurality of stacker systems.

The load-distributing indoor lifting equipment of the pre-assembled steel structure may further include a power wire stored inside the support frame and the lifting frame and connected to the entire plurality of stacker systems.

The load-distributing indoor lifting equipment of the pre-assembled steel structure includes a first additional support beam configured to support the rear outrigger of each stacker system and a second additional support configured to support the front outrigger and the rear outrigger in a folded state of the side outrigger. It may further include at least one of the beams.

The stacker system according to one embodiment of the present invention has excellent self-leveling function, tipping prevention function, high load lifting function, and durability, and can act as a load transfer medium when lifting a high load prefabricated steel structure.

In addition, the load-distributing indoor lifting equipment for prefabricated steel structures including the stacker system has the following advantages:

(1) Even on site inside a building where the allowable floor support load is weak, the exact position where a heavy steel structure is to be lifted and fixed while distributing the applied load generated by lifting the pre-assembled steel structure (unit) within the allowable floor support load It is possible to finely adjust and install fixedly.

(2) It has the effect of increasing lifting efficiency by synchronizing multiple lifting equipment and simultaneously safely lifting or lowering one block or multiple blocks of a heavy steel structure (unit).

(3) Floor fixation method Since the pre-assembled steel structure (unit) can be efficiently lifted up or lowered, it has the effect of shortening the construction period, lowering the difficulty of on-site construction, and minimizing the risk of safety accidents.

(4) The upper fixed pre-assembled steel structure can be installed by efficiently lifting up, lowering, or fine-tuning.

(5) It can be used to move and install pre-assembled structures, and the device can be moved in the east, west, north, south directions inside the building using wheels for self-movement.

(6) Installing a pre-assembled structure using the equipment of the present invention eliminates the need for embedded hardware, wire installation, lug plates, and welding of lug plates, which were necessary in the existing method, thereby reducing pre-work and using heavy equipment required for pre-work. Efficiency is improved by reduction, and fire risk due to omission of hot work can be reduced.

(7) In addition, compared to existing equipment that was moved manually, the equipment of the present invention can prevent musculoskeletal diseases by being driven by a battery, and the frame can also be moved on a mobile truck (SPMT) used to move the unit, allowing for mechanized and automated construction. By realizing this, musculoskeletal diseases can be prevented.

(8) In order to use the existing strand jack-up method, the lifting jig installed by hanging on a wire must be moved. However, to move the lifting jig, it must be manually pushed by a forklift or many workers. To solve this inconvenience, A lifting device that can be moved with a wireless remote control powered by a battery was implemented.

(9) Even in areas where the span of building columns is wide or narrow, the load is distributed to the floor slab of the building, and high-load units can be lifted and installed without reinforcing the slab of the structure.

1A to 3B are views showing the stacker system according to an embodiment of the present invention from different angles and explaining the operating principle of each member.
Figure 4 is a diagram showing the configuration of a mobile cart, a support frame, and a lifting frame among the load-distributing indoor lifting equipment for a pre-assembled steel structure according to an embodiment of the present invention, and a method of combining them.
FIG. 5 is a view showing the configuration of a mobile cart, a support frame, and a lifting frame among the load-distributing indoor lifting equipment for a pre-assembled steel structure according to an embodiment of the present invention, and a method of combining them, viewed from an angle different from FIG. 4.
Figure 6 is a diagram showing the configuration of a mobile cart, a support frame, a lifting frame, and a stacker system that constitutes a load-distributing indoor lifting equipment for a pre-assembled steel structure according to an embodiment of the present invention, and a method of combining them.
Figure 7 is a diagram illustrating the principle of lifting the pre-assembled steel structure by the mobile cart, support frame, lifting frame, and stacker system that constitute the load-distributing indoor lifting equipment for the pre-assembled steel structure according to an embodiment of the present invention. am.
Figure 8 is a diagram showing a state in which communication lines are stored inside the support frame and the lifting frame among the load-distributing indoor lifting equipment for pre-assembled steel structures according to an embodiment of the present invention and connected to the entire stacker system.
Figure 9 is a diagram showing a state in which power wires are stored inside the support frame and the lifting frame among the load-distributing indoor lifting equipment for pre-assembled steel structures according to an embodiment of the present invention and connected to the entire stacker system.
10 to 21 are diagrams showing step-by-step the installation method of a pre-assembled steel structure using load-distributing indoor lifting equipment for a pre-assembled steel structure configured to efficiently install a pre-assembled steel structure with a high load.

Hereinafter, a stacker system according to an embodiment of the present invention and a load-distributing indoor lifting equipment for a pre-assembled steel structure including the same will be described in detail with reference to the drawings.

In this specification, the term "outrigger" serves to fix the position of the stacker system and adjust its height, and when lifting a pre-assembled steel structure with a high load, the load applied to the stacker system is transferred to the target support (e.g., refers to a member that plays a role in distributing the floor or additional support beam) and the support frame.

Additionally, in this specification, “upper” or “upwards” refers to the part located relatively in the opposite direction of gravity or the direction toward that part, and “lower” or “downward” refers to the part located relatively in the forward direction of gravity or the part thereof. It means the direction it is facing.

Also, in this specification, “front” means the direction toward the front outrigger in the stacker system, “rear” means the direction toward the rear outrigger in the stacker system, and “side” is perpendicular to “front” and “rear.” means the direction that intersects.

Also, in this specification, “the front outrigger advances” means that the front outrigger is pulled out of the outrigger mounting unit, and “the front outrigger moves backward” means that the front outrigger is partially inserted into the outrigger mounting unit. it means.

Also, in this specification, “the rear outrigger advances” means that the rear outrigger is partially inserted into the interior of the outrigger mounting unit, and “the rear outrigger moves backward” means that the rear outrigger moves out of the outrigger mounting unit. it means.

Also, in this specification, “adjusting the horizontal” means adjusting the height of the stacker system forward, backward, left, and right to maintain the stacker system as if it were lying on a flat ground.

1A to 3B are diagrams showing the stacker system 50 according to an embodiment of the present invention from different angles and explaining the operating principle of each member.

Referring to FIGS. 1A to 3B, the stacker system 50 according to an embodiment of the present invention includes a pair of first-stage masts 51, a pair of second-stage masts 52, an electrical panel 53, and a pair of outriggers. It includes a mounting unit (ORU), a pair of front outriggers 54, a fork 55, a pair of lateral outriggers 56, a pair of rear outriggers 57, and a plurality of wheels 58.

The stacker system 50 may be configured to move to the lifting position by operating an electric motor with its own battery power.

In addition, the stacker system 50, which has moved to the lifting position, can be precisely positioned to lift the lifting frame 30, which will be described later.

In addition, the stacker system 50, which moves to the lifting position and is precisely set at that position, can automatically set the outriggers 54, 56, and 57 by the self-setting function.

A pair of first stage masts 51 can be fixed in position.

A pair of second-stage masts 52 may be coupled to a pair of first-stage masts 51 so as to be able to slide up and down.

In addition, the stacker system 50 includes a pair of three-stage masts (not shown) coupled to a pair of two-stage masts 52 so as to be able to slide up and down, and a pair of four masts coupled to a pair of three-stage masts to be able to slide up and down. However, it may include one or more additional pairs of masts (not shown).

The electrical panel 53 is coupled to a pair of first-stage masts 51, a pair of second-stage masts 52, and/or other parts to supply electricity to each part of the stacker system 50 and transmit signals. You can.

A pair of outrigger mounting units (ORU) can be coupled one by one to a pair of first-stage masts (51).

The pair of front outriggers 54 may be coupled simultaneously or independently to each outrigger mounting unit (ORU) one by one to enable forward and backward movement, thereby transmitting the load downward when moving forward. Specifically, the pair of front outriggers 54 may each include a horizontal member, an intermediate connection member coupled to a front end of the horizontal member, and a bottom support member coupled to the intermediate connection member. More specifically, the pair of front outriggers 54 support the outrigger support 24 of the support frame 20, which will be described later, downward and apply the load to the stacker system 50 to the entire support frame 20 and the movement, which will be described later. It performs the role of sequentially distributing it throughout the bogie (10).

The fork 55 may be coupled to a pair of two-stage masts 52 and configured to slide up and down together as the pair of two-stage masts 52 slide up and down.

In addition, the stacker system 50 includes a pair of three-stage masts (not shown) coupled to a pair of two-stage masts 52 so as to be able to slide up and down, and a pair of three-stage masts coupled to the pair of three-stage masts so as to be able to slide up and down. When it includes one or more pairs of additional masts, such as a four-stage mast (not shown), the fork 55 is coupled to the pair of additional masts that rise highest and slides up and down together as the pair of additional masts slides up and down. It can be configured to do so.

Specifically, the fork 55 pushes up the extended fork support 34 of the lifting frame 30, which will be described later, to separate the lifting frame 30 from the support frame 20, and the entire lifting frame 30 and the pre-assembly described later. It plays the role of sequentially lifting the entire steel structure (PR).

Additionally, the fork 55 may include a hole (not shown) formed on its upper surface. Accordingly, a pin (not shown) coupled to the lower surface of the extended fork support 34 of the lifting frame 30, which will be described later, is coupled to a hole formed in the upper surface of the fork 55 of the stacker system 50 and is raised to a high position. When lifting a prefabricated steel structure (PR), safe lifting is possible because the pin and the hole are mechanically coupled to each other even if slipping occurs.

A pair of lateral outriggers 56 are each rotatably coupled to each outrigger mounting unit (ORU) one by one independently of each other, and are folded horizontally in close contact with each outrigger mounting unit (ORU) or are attached to each outrigger mounting unit. It may be configured to be partially separated from (ORU) and deployed at a predetermined angle. Specifically, the pair of lateral outriggers 56 may be configured to be partially separated from each of the outrigger mounting units (ORU) and deployed at a predetermined angle ranging from more than 0° to less than 90°.

Specifically, the pair of lateral outriggers 56 support the bottom portion BT to fix the position of the stacker system 50, or adjust the height of the stacker system 50 by adjusting the cylinder stroke of the lateral outriggers 56. Alternatively, it serves to distribute the load applied to the stacker system 50 to the bottom portion (BT) (i.e., target support portion). Here, the target support may refer to the floor reinforcement section of the field column (i.e., the upper slab location of the beam).

More specifically, the pair of side outriggers 56 may be folded in the horizontal direction as described above, and an additional support beam (ASB) is added to the lower part of the pair of front outriggers 24 and the pair of rear outriggers 57 to form a support frame. (20) Even without this, heavy objects can be lifted by distributing the lifting load of the pre-assembled steel structure (PR) to the beam or sub-beam of the building structure.

The pair of rear outriggers 57 may be independently coupled to each outrigger mounting unit (ORU) one by one to enable forward and backward movement, thereby transmitting the load downward when moving backward. Specifically, the pair of rear outriggers 57 may each include a horizontal member, a vertical member coupled to the rear end of the horizontal member, and a floor support member coupled to the vertical member.

More specifically, in the case of a pair of rear outriggers 57, when the span of the building is wider than the general section and the outriggers 54, 56, and 57 of the stacker system 50 are applied to the building slab, the lateral outriggers ( Since it is impossible to use 56), a pair of rear outriggers (57) must be used.

When using a pair of rear outriggers (57), an additional support beam (ASB) in the form of an H-beam crossing the main beam and sub beam is placed on the bottom (BT), and a pair of rear outriggers (57) are installed as additional support beams. By seating it on the top of the (ASB), the lifting load can be transferred to the additional support beam (ASB) through a pair of rear outriggers (57) so that it acts on the beam rather than the slab. Even when a duct shaft or pipe shaft is installed and a hole is installed, the work can be performed using a pair of rear outriggers 57 and an additional support beam (ASB) in the same manner as described above.

Specifically, referring to FIGS. 1A and 1B, the pair of front outriggers 54 move backwards and the pair of rear outriggers 57 move forward and are partially inserted one by one into the interior of each outrigger mounting unit (ORU) in an unused state. exists, and both of the pair of side outriggers 56 are folded horizontally in close contact with each outrigger mounting unit (ORU) and exist in an unused state.

In addition, referring to FIGS. 2A and 2B, the pair of front outriggers 54 move forward and the pair of rear outriggers 57 move backward, partially exiting each outrigger mounting unit (ORU) one by one, and remaining in a usable state. And, both of the pair of side outriggers 56 are folded horizontally in close contact with each outrigger mounting unit (ORU) and exist in an unused state.

In addition, referring to FIGS. 3A and 3B, the pair of front outriggers 54 are all advanced and partially come out one by one from each outrigger mounting unit (ORU) and are present in a usable state, and the pair of lateral outriggers 56 All of them are partially separated from each outrigger mounting unit (ORU) and exist in a vertically unfolded and usable state, and the pair of rear outriggers 57 are all advanced and partially installed one by one into the inside of each outrigger mounting unit (ORU). It is inserted and remains unused.

In addition, a pair of front outriggers 54, a pair of lateral outriggers 56, and a pair of rear outriggers 57 may have an automatic leveling function for the horizontal floor (BT) or the non-horizontal floor (BT). . This will be described later.

In addition, the pair of front outriggers 54, the pair of side outriggers 56, and the pair of rear outriggers 57 may have a fall prevention function even when lifting a high-lift heavy object.

In addition, the stacker system 50 may further include a first-stage mast reinforcement bar (51b) configured to secure the structural safety of the pair of first-stage masts 51 and couple them to each other to prevent deformation. Specifically, in order for the fork 55 to rise, a pair of second-stage masts 52 are raised upward on a pair of first-stage masts 51, and at the same time, the fork 55 is also connected to a chain (not shown). As a result, between the pair of two-stage masts 52, the pair of two-stage masts 52 rise to the same height as the raised height. In this way, when the fork 55 rises upward, the lateral load applied to the pair of first stage masts 51 and/or the pair of second stage masts 52 increases, and the pair of first stage masts 51 and /Or, a situation occurs in which a pair of two-stage masts 52 receive a bending moment where the gap between them widens, is deformed into a twisted shape, or is bent like a shrimp. At this time, the most priority deformation is that the gap between the upper ends of the pair of first-stage masts 51 facing each other widens, and the pair of second-stage masts 52 move from the inside to the outside of the pair of first-stage masts 51. It is a phenomenon of dropping out. The first-stage mast reinforcement bar (51b) serves to prevent the pair of first-stage masts (51) from opening apart.

In addition, the stacker system 50 may further include a two-stage mast reinforcement bar (52b) configured to secure the structural safety of the pair of two-stage masts 52 and couple them to each other to prevent deformation. Specifically, when the fork 55 also rises to the upper end of the pair of two-stage masts 52, the gap between the upper ends of the pair of two-stage masts 52 widens and the bearing of the fork 55 (not shown) ) falls off from the inside of the pair of two-stage masts (52). The two-stage mast reinforcement bar (52b) serves to prevent the pair of two-stage masts (52) from opening apart.

As a result, the first-stage mast reinforcement bar 51b and the second-stage mast reinforcement bar 52b prevent deformation of the stacker system 50 due to the load applied to the stacker system 50 and serve to improve its durability. Perform.

Hereinafter, load distribution type indoor lifting equipment for a pre-assembled steel structure (PR) including the above-described stacker system 50 will be described in detail.

Figure 4 shows the configuration of the mobile cart 10, the support frame 20, and the lifting frame 30 among the load-distributing indoor lifting equipment for a pre-assembled steel structure (PR) according to an embodiment of the present invention and their coupling method. It is a drawing showing, and FIG. 5 is a configuration of the mobile cart 10, the support frame 20, and the lifting frame 30 among the load-distributing indoor lifting equipment of a pre-assembled steel structure (PR) according to an embodiment of the present invention. and their coupling method as seen from an angle different from that of FIG. 4, and FIG. 6 shows a mobile cart (10) constituting a load-distributing indoor lifting equipment for a pre-assembled steel structure (PR) according to an embodiment of the present invention. , a diagram showing the configuration of the support frame 20, the lifting frame 30, and the stacker system 50 and their coupling method, and Figure 7 shows the load of the pre-assembled steel structure (PR) according to an embodiment of the present invention. This is a drawing to explain the principle by which the mobile truck 10, support frame 20, lifting frame 30, and stacker system 40, which constitute distributed indoor lifting equipment, lift a pre-assembled steel structure (PR).

4 to 7, the load-distributing indoor lifting equipment for a pre-assembled steel structure (PR) according to an embodiment of the present invention includes a mobile cart 10, a support frame 20, a lifting frame 30, and a plurality of It includes two stacker systems (50).

The prefabricated steel structure (PR) may be a pipe rack, but the present invention is not limited thereto. This pre-assembled steel structure (PR) is a pre-assembled structure to shorten the construction period and reduce the difficulty of on-site construction, and may be manufactured by pre-assembling at a low location without a lower structure.

The mobile cart 10 may include a body 11 and a plurality of wheels 12.

In addition, the mobile cart 10 may be configured so that the body 11 rises or falls relative to the wheels 12.

In addition, the mobile cart 10 is equipped with a plurality of hydraulic suspensions so that the load applied to the support frame 20 mounted on the top of the mobile cart 10 can be distributed to a plurality of wheels 12. It can be.

For example, the mobile truck 10 may be a self-propelled modular transporter (SPMT), but the present invention is not limited thereto. SPMT is equipment used to transport heavy goods. As the name suggests, it can drive on its own with its own power and is manufactured in unit form, making it a flexible transport equipment that can respond to various needs.

In addition, the mobile truck 10 can be lowered in height to enter the lower part of the combination of the support frame 20 and the lifting frame 30 stored separately in the field.

In addition, the mobile truck 10 raises the height and lifts the combination of the support frame 20 and the lifting frame 30 without interference with the floor (BT) and moves it to the installation position of the pre-assembled steel structure (PR). It can be entered into the lower part of the prefabricated steel structure (PR).

In addition, the mobile truck 10, which entered the lower part of the pre-assembled steel structure (PR), raises its height so that the upper part of the combination of the support frame 20 and the lifting frame 30 is connected to the lower part of the pre-assembled steel structure (PR). You can connect.

If the load of the pre-assembled steel structure (PR) increases, the length of the mobile cart (10) is extended or the number of wheels that distribute the load is increased to apply a lifting load within the allowable load range of the building structure. This can achieve the effect of distributing the load.

The support frame 20 may be configured to be mounted on the mobile cart 10.

For example, the support frame 20 may include a plurality of horizontal bars 21, a plurality of vertical bars 22, and a plurality of vertical bars 23.

A plurality of horizontal bars 21 may be arranged side by side and spaced apart from each other.

The plurality of vertical bars 22 may be coupled to the ends of the plurality of horizontal bars 21 to connect the ends of the plurality of horizontal bars 21 to each other through these.

The plurality of vertical bars 23 may be vertically coupled to a combination of the plurality of horizontal bars 21 and the plurality of vertical bars 22 to be spaced apart from each other.

Additionally, the support frame 20 may further include a plurality of outrigger supports 24.

The plurality of outrigger supports 24 receive the load applied to the stacker system 50 through the front outrigger 54 of the stacker system 50 and sequentially distribute it to the entire support frame 20 and the entire mobile cart 10. Perform the role instructed.

For example, a plurality of outrigger supports 24 may be coupled to the lower end of each vertical bar 23 one by one to protrude in an outward direction (i.e., outside the edge of the support frame 20).

Additionally, the support frame 20 may be configured to be separable into two or more parts. In this case, among the plurality of vertical bars 22, two adjacent vertical bars 22 may be configured to be separable. Specifically, the support frame 20 is configured to be divided into sizes below road traffic standards to ensure mobility on general roads, and even in the divided state, the support frame 20 and the lifting frame 30 remain coupled to each other. It was constructed so that these two members could be moved by one vehicle. More specifically, the support frame 20 may be divided into three. Mobility of the support frame 20 can be secured by attaching high-load wheels at four positions so that it can be moved even in a divided state.

In addition, the support frame 20 can be equipped with lugs to enable lifting with a crane in a divided state, and a separate lug is attached to enable lifting with a crane even when the three separated parts are reassembled. It can be.

In addition, the support frame 20 is equipped with a support such as a desk leg (i.e., a vertical bar 23) for convenience of storage and to secure space for entering and exiting the mobile truck 10. For movement in the north-south, east-west, and/or diagonal directions, high-load wheels may be attached to the lower part of the support frame 20 to facilitate movement. The attached high-load wheels can be rotated and fixed in a 90° direction, allowing movement in the north-south and east-west directions without colliding with pillars within the building. In addition, by removing the fixing pin, the angle can be changed freely, allowing diagonal directions and rotations.

The lifting frame 30 may be configured to be mounted on the support frame 20.

For example, the lifting frame 30 may include a plurality of horizontal bars 31 and a plurality of vertical bars 32.

A plurality of horizontal bars 31 may be arranged side by side and spaced apart from each other.

The plurality of vertical bars 32 may be coupled to the ends of the plurality of horizontal bars 31 to connect the ends of the plurality of horizontal bars 31 to each other through these.

Additionally, the lifting frame 30 may further include a plurality of expandable fork supports 34.

The plurality of extended fork supports 34 rise together as the forks 54 of the stacker system 50 rise and serve to sequentially raise the entire lifting frame 30 and the entire pipe rack (PR). In this case, the lifting frame 30 rises and the support frame 20 is fixed in position as the front outrigger 54 of the stacker system 50 pushes down the outrigger support 24 of the support frame 20. Therefore, in this case, the support frame 20 and the lifting frame 30 are separated from each other.

For example, a plurality of expandable fork supports 34 protrude one by one on the lower surface of each vertical bar 32 outwardly (i.e., outside the edge of the lifting frame 30) or inwardly (i.e., the lifting frame 30 ) can be combined to be inserted inside the border of ). To this end, a housing 33 accommodating an expandable fork support 34 is mounted on the lower part of the lifting frame 30, and the expandable fork support 34 slides along the housing 33 as needed or protrudes outward. Can be inserted internally.

Additionally, the plurality of expandable fork supports 34 may include pins (not shown) coupled to the lower surfaces of each.

Additionally, the lifting frame 30 may be configured to be separable into two or more parts. In this case, among the plurality of vertical bars 32, two adjacent vertical bars 32 may be configured to be separable. Specifically, one lifting frame 30 can be divided into three in consideration of the standards for passage on the road.

The lifting frame 30 may be equipped with lugs to enable lifting with a crane in a divided state, and a separate lug may be attached to enable lifting with a crane even when the three separated parts are reassembled. there is.

Additionally, the support frame 20 and the lifting frame 30 may be configured to partially overlap each other when combined. Accordingly, the total thickness of the combination of the support frame 20 and the lifting frame 30 may be less than the sum of the actual thickness of the support frame 20 and the actual thickness of the lifting frame 30. For this purpose, the spacing and length of the horizontal bars 21 of the support frame 20 and the spacing and length of the horizontal bars 31 of the lifting frame 30 are appropriately adjusted in consideration of reducing the total thickness of the combination and maintaining durability. It can be adjusted.

In addition, the support frame 20 and the lifting frame 30 can be combined and stored separately in the field.

In addition, when parts of the lifting frame 30 overlap inside the support frame 20 in an embedded form, a diagonally processed guide is attached to the contact part to enable smooth coupling, so that the lifting frame 30 can be naturally guided and overlapped. there is. The part processed and attached diagonally protects the fine positioning device 40 installed inside the lifting frame 30 when only the lifting frame 30 is stored, and also serves as a support function like a desk leg for the convenience of moving and storage. It can be configured to do so.

In addition, the load-distributing indoor lifting equipment for the pre-assembled steel structure may further include a plurality of fine position adjustment devices 40.

The plurality of fine positioning devices 40 may be mounted on the lifting frame 30 and configured to horizontally and rotationally move the pre-assembled steel structure (PR).

Specifically, the pre-assembled steel structure (PR) is supported and lifted on the upper part of the fine positioning device 40, and the fine positioning device 40 includes a slide using a bearing (not shown) and a hydraulic cylinder system to move it. It can be configured to allow fine positioning in the X and Y directions.

In addition, the fine positioning device 40 can be installed by changing the position on the lifting frame 30 according to the shape of the pre-assembled steel structure (PR), and as described above, the fine positioning device 40 is a hydraulic device. (not shown) can be configured to adjust the position in the (PR) may be configured to rotate.

The fine positioning device 40 is seated on the lifting frame 30 and supports the pre-assembled steel structure (PR), and the bolts and bolt holes that secure it to the lifting frame 30 are machined long in the longitudinal direction to form a fine positioning device. It can be installed by changing the position of (40). By changing the position of the fine positioning device 40, the pre-assembled steel structure (PR) can be supported even if the shape of the pre-assembled steel structure (PR) and the position of the girder are changed.

In addition, the fine positioning device 40 installed on the lifting frame 30 operates by receiving communication and power, but when the lifting frame 30 is separated and moves, the lifting frame 30 must be separated so that the communication and power lines can be separated. It can be configured to be easily connected and disconnected by providing a connector device at the connecting part.

In addition, the load-distributing indoor lifting equipment of the pre-assembled steel structure may further include a plurality of support beams (SB).

The plurality of support beams (SB) may be configured to support the lower part of the pre-assembled steel structure (PR) after lifting the pre-assembled steel structure (PR) (see FIGS. 12, 13, and 17 to 20).

In addition, the load distribution type indoor lifting equipment for the pre-assembled steel structure has one or more additional support beams to distribute and transfer the lifting load of the pre-assembled steel structure to the beam or sub-beam of the building structure even in sections where the spacing (span) between building columns is wide. (ASB) may further be included (see FIG. 21).

The additional support beam (ASB) is configured to support the rear outrigger 57 of each stacker system 50, and the front outrigger 54 and the rear outrigger 57 are formed in a folded state with the first additional support beam and the side outrigger 56. It may include at least one of a second additional support beam configured to support (see FIG. 21).

In addition, the support frame 20 may be configured to lift the pre-assembled steel structure (PR) with 4 or 6 stacker systems 50 depending on the load of the pre-assembled steel structure (PR). Since the structure (PR) is lightweight, when it is lifted with four stacker systems (50), the outrigger support (24) installed in the center is not used, and only the outrigger support (24) installed on the outside is used as the front outrigger of the stacker system (50). (54) can be used in combination

Similarly, the lifting frame 30 may be configured to lift the pre-assembled steel structure (PR) with four or six stacker systems 50 depending on the load of the pre-assembled steel structure (PR), Since the prefabricated steel structure (PR) is lightweight, when lifting with the four stacker system (50), the expandable fork supports (34) installed in the center can be used by expanding only the four expandable fork supports (34) installed on the outside without expanding. there is.

In addition, the load-distributing indoor lifting equipment of the prefabricated steel structure (PR) may further include a communication line.

Referring to FIG. 8, the communication line may be configured to be stored inside the support frame 20 and the lifting frame 30 and connected to the entire stacker system 50. Specifically, communication cables are embedded in the support frame 20 and the lifting frame 30 to transmit signals to a plurality of stacker systems 50 installed on opposite sides of the support frame 20 and the lifting frame 30, so that the communication cables are connected to the floor (BT). Since it is not placed, it has the effect of preventing interference from communication cables during the moving and lifting work of the pre-assembled steel structure (PR), and is related to the movement of the mobile truck (10) and the lifting of other pre-assembled steel structures (PR). It has the effect of preventing cable damage or interference from traffic devices used for logistics and movement.

In addition, the load-distributing indoor lifting equipment of the prefabricated steel structure may further include a power wire.

Referring to FIG. 9, the power wire may be configured to be stored inside the support frame 20 and the lifting frame 30 and connected to the entire stacker system 50. Specifically, power cables are installed embedded in the support frame 20 and the lifting frame 30 to supply power to the plurality of stacker systems 50 installed on opposite sides of the support frame 20 and the lifting frame 30, so that the power cables are connected to the floor (BT). Since it is not placed, it has the effect of preventing interference from power cables when moving and lifting the pre-assembled steel structure (PR).

Hereinafter, a method of installing a pre-assembled steel structure using the load-distributing indoor lifting equipment for the pre-assembled steel structure described above will be described in detail with reference to FIGS. 10 to 21.

First, as shown in FIG. 10, the lifting frame 30 is coupled to the support frame 20 to obtain a combined body (step S10). Specifically, the lifting frame 30 is coupled to the support frame 20 on the floor BT between the columns CL of the building structure to obtain a combined body.

Next, as shown in FIG. 11, the mobile truck 10 is operated to enter the mobile truck 10 into the lower part of the combination, and then the height of the body 11 of the mobile truck 10 is adjusted to control the combination ( Specifically, the lower part of the support frame 20) and the upper part of the mobile cart 10 (specifically, the body 11) are brought into close contact (step S20).

Next, as shown in FIGS. 12 to 14, the mobile truck 10 is operated to enter the combination into the lower part of the pre-assembled steel structure (PR), and then the height of the body 11 of the mobile truck 10 is increased. By adjusting, the lower part of the pre-assembled steel structure (PR) and the upper part of the combination (specifically, the lifting frame 30) are brought into close contact (step S30). At this time, the temporary support beam (SB) mounted on the lower part of the pre-assembled steel structure (PR) is removed.

Next, as shown in FIG. 15, a plurality of stacker systems 50 are arranged in a row on one side and the other side of the combination (step S40).

Next, after the step (S40), the communication lines and power wires stored inside or separately stored in the support frame 20 and the lifting frame 30 are connected to the entire plurality of stacker systems 50 (step S50 )).

Next, after the step (S50), at least one outrigger selected from the group consisting of a pair of front outriggers 54, a pair of lateral outriggers 56, and a pair of rear outriggers 57 of the stacker system 50 By adjusting the height, the level of the stacker system 50 is automatically adjusted with respect to the horizontal floor (BT) or the non-horizontal floor (BT) (step S60). For example, the horizontal of the stacker system 50 can be automatically adjusted by operating a pair of front outriggers 54 and a pair of side outriggers 56, and a pair of front outriggers 54 and a pair of rear outriggers 57 ) can be operated to automatically adjust the horizontality of the stacker system 50.

In addition, in step S60, the lateral outriggers 56 may be deployed to support the bottom portion BT, or the rear outriggers 57 may be deployed to support the additional support beam (ASB) previously installed on the bottom portion BT. You can.

Next, as shown in FIGS. 16 and 17, after the step (S60), each stacker system 50 is operated to install the outrigger support 24 of the support frame 20 with the front outrigger 54. Push down, push up the extended fork support 34 of the lifting frame 30 with the fork 55, separate the lifting frame 30 from the support frame 20, and lift the pre-assembled steel structure (PR) ( Step (S70)). Afterwards, the support beam (SB) is again mounted on the lower part of the pre-assembled steel structure (PR). In this case, the load of the pre-assembled steel structure (PR) is sequentially applied to the fine positioning device 40 and the lifting frame 30, and then to the extended fork support 34 and the stacker system 50 of the lifting frame 30. It is first distributed to a plurality of stacker systems 50 through the forks 55, and then the load is supported through the front outrigger 54 of the stacker system 50 and the outrigger support 24 of the support frame 20. The load is distributed secondarily throughout the frame 20, and then the load is thirdly distributed throughout the mobile bogie 10 and then evenly distributed fourthly throughout the floor portion BT via the wheels 12. Accordingly, according to the installation method of a pre-assembled steel structure using a load-distributing indoor lifting equipment for a pre-assembled steel structure of the present invention, a position where a heavy steel structure is to be lifted and fixed even on the inside site of a building with a weak floor allowable support load. It can be fixedly installed.

Next, as shown in FIG. 17, after the step (S70), a plurality of support beams (SB) are again mounted on the lower part of the pre-assembled steel structure (PR) (step (S80)).

Next, after the step (S80), the plurality of fine adjustment devices 40 mounted on the lifting frame 30 are operated to finely adjust the position of the pre-assembled steel structure (PR) (step S90).

Next, as shown in FIGS. 18 and 19, after step S90, each stacker system 50 is operated to lower the pre-assembled steel structure PR to the reference height (step S100) ).

Next, after the above step (S100), each stacker system 50 is operated to lower the fork 55 to lower the lifting frame 30 together with the extended fork support 34 of the lifting frame 30. The lifting frame 30 is seated on the support frame 20 to obtain a combined body again, and the front outrigger 54 is raised to separate it from the outrigger support 24 of the support frame 20 (step S110).

Next, after the step (S110), the communication lines and power wires connected to the entire plurality of stacker systems 50 are separated and stored inside the support frame 20 and the lifting frame 30 (step S120). .

Next, as shown in FIG. 20, after the step (S120), the mobile truck 10 is operated to move the assembly from the lower part of the pre-assembled steel structure (PR) to the storage location (step (S130) ).

In addition, the method of installing a pre-assembled steel structure using a load-distributing indoor lifting equipment for a pre-assembled steel structure according to an embodiment of the present invention further includes a control unit having the following functions, and the control unit executes various functions. It may include a number of buttons and a display unit.

The present invention has been described with reference to the drawings, but these are merely illustrative examples, and those skilled in the art will understand that various modifications and equivalent implementations can be made therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.

10: mobile cart 11: body
12: Wheel 20: Support frame
21: horizontal bar 22: vertical bar
23: vertical bar 24: outrigger support
30: lifting frame 31: horizontal bar
32: Vertical bar 33: Extendable fork support housing
34: Extended fork support 40: Fine positioning device
50: Stacker system 51: 1st stage mast
51b: 1st stage mast reinforcement bar 52b: 2nd stage mast reinforcement bar
52: Two-stage mast 53: Electric panel
54: Front outrigger 55: Fork
56: side outrigger 57: rear outrigger
58: Wheel ORU: Outrigger mounting unit
CL: Column BT: Floor
PR: Pipe Rack PP: Pipe

Claims (19)

A pair of single masts;
A pair of two-stage masts coupled to the pair of first-stage masts so as to be able to slide up and down;
A pair of outrigger mounting units each coupled to the pair of first-stage masts;
a fork coupled to the pair of two-stage masts and configured to slide up and down as the pair of two-stage masts slides up and down; and
Includes a plurality of wheels,
It includes a pair of front outriggers, one pair coupled to each of the outrigger mounting units, a pair of side outriggers, one pair coupled to each of the outrigger mounting units, and a pair of rear outriggers, one pair coupled to each of the outrigger mounting units,
The pair of front outriggers, the pair of side outriggers and the pair of rear outriggers have an automatic leveling function with respect to a non-horizontal floor,
The pair of front outriggers are configured to be coupled simultaneously or independently to each of the outrigger mounting units so as to be able to move forward and backward one by one to transfer the load downward when moving forward,
The pair of front outriggers each include a horizontal member, an intermediate connection member coupled to a front end of the horizontal member, and a floor support member coupled to the intermediate connection member,
The pair of lateral outriggers are each rotatably coupled to each of the outrigger mounting units independently of each other, and are either folded horizontally in close contact with each outrigger mounting unit or partially separated from each outrigger mounting unit in advance. It is configured to unfold at a determined angle,
The pair of rear outriggers are each independently coupled to each of the outrigger mounting units one by one to enable forward and backward movement, and are configured to transmit the load downward when moving backward,
The pair of rear outriggers each include a horizontal member, a vertical member coupled to a rear end of the horizontal member, and a floor support member coupled to the vertical member,
A stacker system configured to move to the lifting position by operating an electric motor with its own battery power. delete According to paragraph 1,
The fork is a stacker system including a hole formed on the upper surface. delete delete delete According to paragraph 1,
A stacker system further comprising a first-stage mast reinforcement bar configured to secure the structural safety of the pair of first-stage masts and couple them to each other to prevent deformation. According to paragraph 1,
A stacker system further comprising a two-stage mast reinforcement bar configured to secure the structural safety of the pair of two-stage masts and couple them to each other to prevent deformation. According to paragraph 1,
A stacker system further comprising electrical panels. delete mobile truck;
a support frame configured to be mounted on the mobile cart;
a lifting frame configured to be mounted on the support frame; and
Comprising a stacker system according to any one of claims 1, 3, and 7 to 9,
The stacker system is a load-distributing indoor lifting equipment for a pre-assembled steel structure configured to lift the lifting frame upward while supporting the support frame downward. According to clause 11,
The support frame includes a plurality of horizontal bars arranged side by side and spaced apart from each other, a plurality of vertical bars coupled to ends of the plurality of horizontal bars to connect the ends of the plurality of horizontal bars to each other, and a plurality of horizontal bars and the plurality of horizontal bars. A load-distributing indoor lifting equipment for a pre-assembled steel structure including a plurality of vertical bars spaced apart from each other vertically in a combination of vertical bars. According to clause 12,
The support frame is a load-distributing indoor lifting equipment of a pre-assembled steel structure further comprising a plurality of outrigger supports coupled to the lower end of each vertical bar one by one to protrude outward. According to clause 11,
The lifting frame distributes the load of a pre-assembled steel structure including a plurality of horizontal bars arranged side by side and spaced apart from each other and a plurality of vertical bars coupled to the ends of the plurality of horizontal bars to connect the ends of the plurality of horizontal bars to each other. Mold indoor lifting equipment. According to clause 14,
The lifting frame is a load-distributing indoor lifting equipment of a pre-assembled steel structure further comprising a plurality of extended fork supports that are coupled to the lower surface of each vertical bar one by one to protrude outwardly or to be inserted inward. According to clause 15,
The plurality of expandable fork supports are load-distributing indoor lifting equipment of a pre-assembled steel structure including pins coupled to each lower surface. According to clause 11,
Load distribution type indoor lifting equipment for a pre-assembled steel structure further comprising a communication line housed inside the support frame and the lifting frame and configured to be connected to the entire plurality of stacker systems. According to clause 11,
Load distribution type indoor lifting equipment for a pre-assembled steel structure further comprising a power wire that is stored inside the support frame and the lifting frame and is configured to be connected to the entire plurality of stacker systems. According to clause 11,
A pre-assembled steel structure further comprising at least one of a first additional support beam configured to support the rear outrigger of each stacker system and a second additional support beam configured to support the front outrigger and the rear outrigger in a folded state of the side outrigger. Load-distributing indoor lifting equipment.