JPH033893A - Crane for construction - Google Patents

Abstract

PURPOSE:To facilitate the shifting and removing operations by installing the body part of a slide base frame on the lower side of the turning wheel receiving board of a crane body and installing a plurality of supporting legs onto the basic part in demountable manners by a basic part and connecting a crane body shifting mechanism onto one side of the frame. CONSTITUTION:After a frame assembly A of a building is assembled ud to a rooftop floor, a crane body 2 is shifted to remove a mast 1, and at this time two shift receiving supporting beams 30 are laid in parallel in the horizontal state, keeping a prescribed interval, setting the mast 1 interposed in the direction for shifting the body 2. Then, a crane body shifting mechanism 4 is operated. In other words, a shift reaction force receiving supporting girder 42 is fixed by a catch-holding fixing mechanism 43 by using a hydraulic unit 14 mounted onto the turning board 3 of the body 2, and a hydraulic cylinder 45 is operated in a prescribed stroke, and then a slide base frame 20 slides on the upper surface of the beam 30 by the supporting leg 23 part, and the body 2 shifts. Therefore, a climbing mechanism 10, mast 1 etc. at the original positions are disassembled successively and removed by the crane.

Description

[Detailed description of the invention]

Industrial field of application: The present invention relates to a crane mainly used at the construction site of a building, which can be used while being moved laterally on the upper part of a building frame under construction, and can be easily disposed of when removed after use. This relates to a construction crane that can be installed. Conventional technology and problems: When constructing a high-rise building, the height of the third order should be adjusted according to the thickness of the frame.
Construction cranes commonly referred to as climbing cranes are used. This type of crane is usually used for the construction of medium-to-high-rise buildings, and depending on the construction site conditions, the crane is often installed inside the building to perform one-way work. . In addition, as a construction work procedure, work inside the building will proceed sequentially from the 1st floor to the 1st floor, as long as the assembly does not interfere with other work. In the case of construction sites such as urban areas, where the construction site is small, the work space is limited.2.In many cases, the crane will be installed inside a building. As a result, the floor of the crane mass I/erected part remains unfinished and so-called "damage" remains, and the remaining part must be finished later, which significantly impedes work efficiency. It becomes every day. In particular, recently, as construction progresses, there have been many requests to be able to proceed with finishing work on the lower floors and make part of the building available for use, regardless of the construction work on the upper floors. Early resolution of the defective parts is required)
, there is a need for a construction method that shortens H2S1. Apart from these problems, as the work progresses,
If the crane support mast is supported by the frame under construction to eliminate damage to the r-th floor, f'! , a lot of labor and equipment are required to dismantle and remove the crane after the lifting work of the shrine, etc. is completed. In order to dismantle the existing construction crane and place it on the ground, we first carried the disassembly crane onto the roof of the building.
This crane dismantles the construction crane and carries it down to the ground. Next, a crane smaller than the disassembly crane is prepared, and the third crane is used to dismantle and remove the disassembly crane. In this way, gradually smaller lanes are used and each 11th unit is dismantled and removed, which requires a lot of effort and expense. However, it is known, for example, from Japanese Patent Application Laid-Open No. 5042559, that the main body of a climbing crane can be moved to the frame of a building under construction; A traveling trolley is attached to the crane body to be used, and when the crane body is removed from above, the crane is then moved by the trolley on the rails.However, with this method, a traveling trolley is required. Of course, it is necessary to lay rails for movement and to have a holding means to stop it at a desired position, and it is necessary to lay rails or temporarily fix them to a part of the building/body frame under construction. Although it may be thought that the crane rotates and is easy to see, it is actually a blank space. Means for Solving the Problems: The present invention solves the above-mentioned problems and improves the climbing function of the crane body. After the crane body is raised to the lowest position of the building to be constructed, the supporting mast can be removed, and the crane can use its own functions to remove the mast and remove the building frame. The crane body can be moved laterally on a movable support beam laid on the side, allowing it to be moved to a desired position within a building, allowing for quick cleanup of the crane mast installation part of the building when the crane is erected. The object of the present invention is to provide a reasonable construction crane that can be easily used for construction work and crane relocation/removal operations.That is, the present invention relates to a construction crane equipped with a climbing mechanism: A main body of a slide base frame that is separable from the climbing support frame is attached to the lower side of the swivel ring holder of the main body, and the main body of the slide base frame has a plurality of support legs projecting laterally at the base. The support legs are removably attached to the support legs so that they can be positioned and slid when the crane body is placed on a pair of movable support beams installed on the building side via a slide base frame. A guide is provided at the lower part of the slide base frame; on one side of the slide base frame, a gripping and fixing mechanism and a guide are installed on one side of the slide base frame and are mounted between the pair of movable support beams and can be engaged with and detached from the movable support beams at both ends. A crane main body transfer J consisting of a moving reaction force support girder equipped with a moving reaction force support girder, and a rake 1-driver that connects the connecting part for the rake 1-Heasfrey 1.K and the moving reaction force support girder.
The mechanism is 1.1" in that it can be connected to the slide heave during movement of the crane main body. Also, the crane main body of the present invention can be connected to the sliding support beam when the crane main body is moved. The crane body moving machine +14 for moving has a connecting girder on the side of the slide hese frame, which is removably connected to the two wooden support legs of the slide hese frame at both ends, and has a free part 11). The locking force is applied to the movable support beam in several stages, and the slide I/driver is activated by switching the operation with the gripping and fixing mechanism attached to the other movable reaction force support girder. By doing so, it was made possible to move independently.In addition, the moving reaction force support girder was provided with slide drive connecting parts on both front and rear sides, and the direction of the moving reaction force support girder was reversed. If connected to the slide drive machine, the propulsion reaction force receiving and supporting conditions of the gripping and fixing mechanism can be changed.
When moving, it is possible to select either JJ or single traction. In addition, in the present invention, an elevation angle regulation switch for the crane boo J is interposed next to the control n of the crane body movement mechanism, and the crane body movement mechanism is controlled so that it does not operate when the elevation angle regulation range is exceeded. The system is configured such that the center of gravity of the crane body is located at the center of rotation during movement, allowing safe movement. Effect: According to the present invention, the crane can be erected inside a building at a construction site such as a building. When using the installation, after the construction work of the building has progressed and the frame has been assembled from the first to second floors of the building, first move the supporting support to the fifth floor of the building, and move it from under the crane body in the direction in which it will be moved. The mast is clamped and extended, and the crane body is placed on this movable support beam.This operation reverses the climbing mechanism and lowers the crane body.In addition, when descending, the crane body is placed on the movable support beam. Before placing the
A support leg is removed from the main body of the slide base frame attached to the lower side of the slewing ring cradle, and the support leg allows the crane main body to install two movable support beams. Place the holding beam on the -1- side of the support leg number: 1 in parallel with the movable support beam, and connect the mathematical beam and the movable support beam with a port, or use a U-shaped bracket (= The supporting legs are clamped and fixed so that they can be fixed on the crane body or the roof floor via the Sleigh Heath Frame.After that, the main part of the Sleigh Heath Frame and the crane body support frame (Climbing The climbing mechanism can be lowered by cutting the support frame (supporting frame), so the crane main body is operated to remove the uppermost mass 1-segment. In this way, the square 1-, which was at the center of rotation of the crane body, is removed, so that the crane body can be moved laterally. Therefore, in order to relocate the crane body and use the crane body moving mechanism in a propulsion mode, connect the connecting girder to the support leg on the opposite side of the crane body movement direction.
On the movable support beams laid in parallel, the movable reaction force support girder and the slide drive machine (for example, a hydraulic sill) are placed at required positions, and a hydraulic drive device is operated to provide thrust. When moving, please raise the jib of the crane body.
This is done after setting the turning center moment to O, and then releasing the fixation between the support legs of the slide head frame and the movable support beam. When operating the slide drive machine, the moving reaction force support girder is fixed by operating the gripping and fixing mechanisms installed at both ends thereof.
Squirrel 1. After the crane body is propelled by one stroke of the drive machine, the gripping force of the gripping and fixing mechanism is removed, and the slide drive machine is reversely operated, so that the connecting girder side is stopped by the weight of the crane body. Therefore, only the movable reaction force support girder is pulled and can be moved to the next reaction force support position. After activating and fixing the gripping mechanism of the movable reaction force support girder again, the above operations can be repeated in order to move it to the desired position. At the target position, the crane can be used in a stable state by fixing the slide hem frame. When moving the crane body, if the control circuit prevents the transfer IJJ mechanism from operating if the elevation angle of the shib is not within the set value, unexpected accidents can be prevented. Since q and Y will be working at heights, Ibara'zen 1 no 1 will be increased. In addition, the support leg of the base frame that slides on the movable support beam J, should be provided with a shoe with low frictional resistance on its upper surface, and the inside of the support beam (jjll By abutting the edge with a guide roller and being guided, it is possible to move horizontally normally without lateral wobbling and without requiring excessive force. After moving the wooden body of the crane from the crane installation equipment in this way, the crane itself can be operated and the remaining masts etc. can be dismantled and removed one by one. . If all the erected parts of the crane were removed, only the crane body on the 10th floor of Hoyaya would be left as part of the frame under construction, and there would be no crane-related parts left inside the building, which would interfere with internal work. Q and Z mean that there is no problem and the damage can be easily resolved. Of course the crane is a general yang 1
Can be used as is for soot work. When the work is completed and it is to be dismantled, depending on the installation location, it can be moved laterally to the edge of the building in the same manner as described above, dismantled using an I-rank crane, etc., and then removed from the building. EXAMPLE The present invention will be described below with reference to the drawings in accordance with an example. Figure 1 shows an example of a construction crane that has a climbing mechanism used in the present invention. 2 is the crane body, 3 is the turning table, 4 is the turning wheel pedestal, 5 is the shifter, 6 is the shifter support 1.ll frame, 7 is the hoisting machine, 7' is the zizo hoisting winch, 8 is the Hanging rope. ] 0 is a climbing mechanism, Lltl climbing support frame, 12 is a lower climbing frame, 13 is a hydraulic cylinder for climbing, 14 is a hydraulic unit I. Each of these parts has a known configuration. Reference numeral 20 denotes a slide base frame, which is placed below the swing wheel cradle 4 and supports the climbing support frame 11.
It has a removable design. As shown in FIGS. 2 to 4, the base frame 20 has a mounting seat 22 provided on the circumference of the cylindrical main body 2 [and the main body 21]. It consists of four supporting legs 23 (the number of which is not limited to this) that do not extend radially to the sides through the supporting legs 23. Support 1. +1 leg 23 is ahead・”’:
There are several stages of slide shoes 24 on the lower side of the IR.
In addition, on the side of the tip, there is a guide roller 25 that comes in contact with the inner edge of the movable support beam 30 to be laid and serves as a steady rest.
It is attached by. Further, each support leg 23 (particularly the one on the crane main body movement side) is provided with connection girder connection attachment pieces 27 arranged in 17 rows along the movement axis. The slide shoe 24 attached to the support leg 23 may be, for example, a flat sliding plate made of oil-impregnated sintered alloy, a base plate partially made of oil-impregnated sintered alloy, or a metal block. You can use something with embedded carbon blocks. Of course, the material is not limited to these, and any non-metallic material may be used as long as it has a low coefficient of friction and can withstand 7Hy of blood pressure under load. The construction crane 50 having such a configuration is installed in advance so that the crane main body 2 can be moved from floor to floor after it has been assembled to the building frame inside the building to be constructed.

[11.
Prepared and erected. After the building frame of the fixtures has been assembled to the roof floor, in order to relocate the crane body 2 and remove the square 1-], move the crane body 2 in the direction in which it is to be relocated, as shown in Figure 5. Then, two movable support beams 30 are laid horizontally and parallel to each other at a required interval with the mast 1 in between. As this movable support beam 30, a copper phase steel such as type II steel is used. Crane body movement mechanism/I for moving the crane body
As O, those shown in FIGS. 5 to 9 are used. The crane body moving mechanism 40 includes a connecting girder 4 connected to the support leg 23 of the slide base frame 20 on one side.
1, a moving reaction force support girder 42, and a slide drive device 45 (specifically, a hydraulic cylinder for climbing mechanisms) that connects these two to obtain a lateral movement thrust for the crane body 2. It is composed of The connecting girder 41 is a member having a length that can be mounted between both movable support beams 30, and the connecting girder 41 is a member having a length that can be mounted between both movable support beams 30. Slight Heath Frame 20 and Ren X by 47
, 11. In addition, at positions near the center of both ends, there is a guide II-ra 48 that contacts the edge of the flange 31 of the movable support beam 30 via the bracket old', and a guide II-ra 48 that makes it easy to move on the movable support beam 30 and supports the support leg 23. A rope (not shown) is provided for easy connection and removal.
(= J is installed. At the center of this connecting girder, there is provided a bracket 1-4F to which the base end of the hydraulic cylinder 45 can be connected. The moving reaction force receiving support 42, like the connecting girder 41, has both sides. It is a member having a length that can be hung between the movable support beams 30, and a gripping and fixing mechanism 43 (=J is provided at both ends.
A piston rod 7 l-42' of a driving hydraulic cylinder 45 protrudes from the center of the girder. The gripping and fixing mechanism 4
3 1; i. Within the frame 43, l integrally formed at the end of the girder, the base portion is provided protruding from the end of the locking claw piece 43c supported by the pin/12b and the outside of the mounting frame 43a. Bracket 43
At d, the base is connected with the end of the piston rod 44' of the lock hydraulic cylinder 44 supported by the pin 43e, and the piston rod 44' of the I cock hydraulic cylinder 44 is connected to the piston rod 44' end of the lock hydraulic cylinder 44 supported by the pin 43e.
Each time the holder is moved backward, the locking claw 43c of the two-claw piece 43c is pressed against the top surface of the movable support beam 30, and the support protruding perpendicularly to the movable support beam 30 from the outside of the mounting frame 7I3a is removed. is the support surface 43g of the piece 43f, and the movable support beam 3
Grasp the 31 part of the flange 1 to stop receiving the propulsive reaction force. In addition, a flange 3 which becomes the inner side of the movable support beam 30 is located at a position opposite to the gripping IM fixed machine part 43.
Guide rollers 46 are provided on both sides to abut against the edges of the rollers 1 and 1 to prevent them from slipping. In order to operate the lane main body moving mechanism 40 like this, a hydraulic unit mounted on the turning table 3 of the crane main body 2]
Each hydraulic cylinder 45.4 is controlled by a hydraulic control mechanism 60 as shown in FIG. 44 is activated to fix the movable reaction force receiving support 42 by the gripping and fixing mechanism 43, and the hydraulic cylinder 45 is operated for a predetermined stroke. The crane main body 2 moves by sliding. In addition, the 101st
K (b) shows an example of the electric control circuit of the hydraulic control mechanism 60, in which 5 6 symbol RSI is used to operate the locking claw piece 43 (7 of the gripping and fixing mechanism 43 to the locking side). In other words, RS2 is a relay for operating the hydraulic cylinder 44 to fix the moving reaction force receiving support 42 to the moving reaction force receiving support 30, and RS2 is the moving reaction force receiving support 4 2 &).
r! ! I-1 constant release relay, 1733 is the piston rod 45 of the hydraulic cylinder 45 which is the slide drive machine
The forward relay RS4 is a relay for screws 1 to 1 of the hydraulic cylinder 45, 45'f, &i14, SOLL, S.
QL2, SQL3, SQL, 1 are the respective relay excitation coils, RSI', RS2'. I? S3'.
RS4' is the A contact of the relay, RSI", I?S2
", RS3", RS4" are relay B contacts, P
BI, PH2, PH3, and PH1 are all push forceps switches. The I7S is hooked into a known restriction switch mechanism that restricts the elevation of the jib 5 on the crane main body 2 side.
When the crane stands up and the center of gravity acting on the crane body 2 exceeds a specific angle range that determines the corresponding rising angle so that the center of gravity acting on the crane body 2 is located at the center of rotation, the hydraulic operating circuit is cut off and opened, or a Mitsut switch is used to shut this off. Crane body movement mechanism 4
By incorporating it into the hydraulic control mechanism 60 of 0, when the crane body slides, it will not operate unless the jib 5 is upright within the regulated angle range, preventing relocation work under unreasonable conditions. , can be done safely. When the crane body 2 has been moved to the target position, when operating the crane at that position, the connecting girder 41 of the crane body moving mechanism 40 is separated and placed on the support legs 23 of the Slight Heath frame 20 at a distance of υ°. The support leg 23 is sandwiched between the support beam 36 and the movable support beam 3o, and is fixed by tightening bolts using the fixing fittings 37 (third
(shown in dashed lines). In this way, the slide HASFREY 1, 2o serves as a base and the crane body 2 is placed on top of the building.
This will ensure a stable emplacement. Therefore, from now on, first, the climbing support frame 11, the climbing mechanism 10, the squares 1 to 1, and the heath in the original position are sequentially disassembled and removed from the building using this crane. As a result, there are no crane support masts in the building under construction, so finishing work can be done sequentially from the lower floors to the upper floors without leaving any damage when finishing the floors. Additionally, the crane relocated to the roof floor will be used for lifting operations. When the use of this crane is finished, the movable support beam 30 can be moved to the end of the building facing the road or the like in the manner described above, and then dismantled and removed using a truck crane. In addition, in the construction crane of the present invention, the slide base frame 20 mounted on the lower side of the swing wheel cradle 4 of the crane body 2 serves as the crane body's 2nd body.
Since it is designed so that it can be supported on the body frame 1.1, as shown in Fig. 11, by setting the height so that the mass 18 can stand on its own, the crane body can be supported by the climbing mechanism 10. When climbing the section, after supporting and crossing Mass 1 to Heath IB on the floor and raising the crane body to the required height, slide base frame 1.20 is supported on the floor component of the upper floor. It can also be used as a floor climbing crane. In this case, the support legs 23 of the slide base frame J, 20 can be connected to each other with connecting pins 28 on both sides at the handle seat 22 provided on the side surface of the main body 21, as shown in FIG. 12, for example. In this way, the force connecting pin 2
Each time 8 is removed, the support leg 23 is rotated in the direction of the lateral force.
Avoid contact with the building frame when folding and rising,
Similarly, the legs of the masthead 1B are folded laterally in this manner. In addition, if this support leg is made to fold, it can be easily folded and folded without requiring a large amount of power.
Can be fixed in place. If such a system is adopted, floor climbing can be performed without the need for a separate intermediate support frame, and the crane can be provided with a rational liming function without the need for an extra machine +A. In the case of this type, even if the height of each floor of a building is different, the slide base can be moved by removing the upper lock pin between the climbing support frame 11 and the mass l-] and extending the climbing oil 1F cylinder. This can be adjusted by adjusting the height of the support leg supports on the base frame. In addition, regarding the support legs of the rake 1-heath frame 20 and the mast hese 1B, 41 as described in III.
In addition to folding in the direction toward the left, it is also possible to fold it upwards for climbing. Effects of the Invention: According to the present invention, during the period of use of a crane erected in a building, the unworkable parts that occur around the erected part of the crane on the lower floors are eliminated, and the problem is solved. This will help improve the efficiency of internal building work. moreover,
Easily move horizontally to the desired position on the second floor of the building.
Since it can be relocated using a U, it is possible to lift and unload materials without having to install a separate lane. Furthermore, when relocating the crane body, there is no need for complicated operations; the crane body can be kept in a stable state, and work at high places can be performed safely; By moving the building to a convenient location for demolition after the work is completed, the demolition process can be carried out from outside the building using an I-rank crane, significantly reducing the amount of incidental work required compared to the conventional method. It can be said that the economic effects are significant.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of the construction crane of the present invention, Fig. 2 is a vertical cross-sectional view of the mounting portion of the slide base frame, Fig. 3 is a plan view of the slide base frame, and Fig. 4 is a support leg of the slide base frame. Figure 5 is a plan view showing the relationship between the movable support beam installed on the building side and the crane body movement mechanism, and Figure 6 shows the connection between the support legs and the connecting girder of the crane body movement mechanism. , FIG. 7 is a ■-■ view of FIG. 6, FIG. 8 is a longitudinal sectional view of the gripping and fixing mechanism of the moving reaction force support girder, and FIG. 9 is a TX-IX view of FIG. 8. A sectional view, FIG. 10 is a diagram showing the hydraulic control mechanism of the crane body moving mechanism, and FIGS. 11 and 12 are diagrams showing the crane in a floor climbing type. 1... Square h 2... Crane body 4.
...Swivel ring pedestal 5...Jib 10...Climbing mechanism 11...Climbing support frame 14...Hydraulic unit 1-20...Sly I-Heath frame 21...Slide base Main body part of frame 1 2 22... Take-a seat 23... Support (, 1 leg 24
... Slide shoe 25.46.48 ... Guide roller 27 ... Take (1 piece 30 ... Movable support beam 31 ... Flange 3G Holding beam 40
...Crane body movement a+14 41...Connection girder 4]', 42'...Bracket 42...Movement reaction force support girder 42[), 43e
...Pin 43...Gripping and fixing mechanism /I3a...
Frame frame 43c...Latching claw piece 43d...Bracket 43f...Receiving iJ piece 43g...Receiving surface/
I71...Lock hydraulic cylinder 44゛...Piston rod 45...Slide drive machine (hydraulic cylinder) 45
゛... To the piston rod... Body frame

Claims (1)

[Claims] 1. In a construction crane equipped with a climbing mechanism: A main body of a slide base frame that is separable from the climbing support frame is attached to the lower side of the swing wheel cradle of the crane body, and the slide base frame is separated from the climbing support frame. A plurality of support legs protruding laterally are detachably attached to the base of the main body; a slide base frame is attached to the support legs on a pair of movable support beams installed on the building side. A guide is provided at the bottom that allows the crane body to be positioned and slid when it is placed; one side of the slide base frame is mounted between the pair of movable supporting beams, and the movable support beam is mounted at both ends. a moving reaction force support girder equipped with a gripping and fixing mechanism and a guide that can be engaged with and detached from the support beam; a slide drive machine that connects the moving reaction force support girder with a connecting portion to a slide base frame;
A construction crane characterized in that a crane body movement mechanism comprising: can be connected to the slide base frame when the crane body is moved. 2. The crane body movement mechanism consists of a connecting girder that can be removably connected to the slide base frame and mounted between the movable support beams, and a connecting girder that is mounted between the movable support beams and can be connected to and detached from the movable support beams. Claim 1: The movable reaction force receiving support girder is provided with a flexible gripping and fixing mechanism at both ends, and a slide drive machine connects the connecting girder and the movable reaction force receiving support girder and moves forward and backward by switching the operation. Construction cranes described in .