JPH03247863A - Positioner of steel frame beam - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a steel beam positioning device that is attached to a steel frame erection device and used for automatically positioning a steel beam to a column joint hardware in construction work for a building or the like. It is something.

[Prior Art] In the construction of steel frames for buildings, etc., when assembling steel beams between steel columns, conventional methods have been used, for example,
-36460, 61-36461, 61-36
As shown in Publication No. 462, etc., the steel frame erection equipment supporting the steel beams is transported to the assembly location by crane operation, and the hook is passed between the heads of the steel columns, and then the steel frame erection equipment is moved to its base. A method has been adopted in which the steel beams are positioned at the assembly points between the steel columns to perform the assembly.

[Problem to be solved by the invention 1 However, in the case of the above-mentioned steel beam assembly method,
In order to hang the steel frame erection equipment between the heads of the steel columns, it is necessary to perform an inching operation with the crane, and a special technician (electrician) waiting at the column joint of the steel column must use a heavy trowel. Dangerous work at heights is required, such as grabbing and pulling objects such as steel beams to position them.

SUMMARY OF THE INVENTION Therefore, the present invention aims to provide a steel beam positioning device that can automatically position a steel beam between steel columns without the need for inching operations using a crane and positioning work by special skilled workers at high places. It's something.

[Means for Solving the Problems 1] In order to solve the above-mentioned problems, the present invention provides a suspension device for lifting and lowering a steel frame erection device designed to grip a steel beam, and a suspension device for lifting and lowering a steel frame erection device designed to grasp a steel beam. The arm device is comprised of an arm device supported at both left and right ends so as to be swingable in the left and right directions, and the arm device is provided with a clamp device for capturing and gripping the joint fittings of the steel frame column. The configuration is as follows:

Further, instead of raising and lowering the steel frame erection device using a suspension device, the arm device may be equipped with a lifting device for raising and lowering the steel frame erection device.

``Function J'' When the neck adjustment of the arm device is performed with the clamping device capturing the joint hardware, the horizontal position of the steel beam can be determined. Also, when the joint hardware is clamped with the clamp device,
The front and rear positions of the steel beams can be determined. When the steel frame erection equipment is lowered using a suspension device or a lifting device, it is positioned between the steel beams or joint hardware.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show one embodiment of the present invention.
The steel beam 1 is attached to a support arm 3 which is configured to grip and hold the steel beam 1 made of shaped steel with a gripping device 2, and to a connecting hardware 5 made of type 1 steel attached to the upper side of a pair of steel columns 4. An assembling device 7 is installed at both left and right ends of the support beam 3 so as to be bolted to the gripping device 2 and the assembling device 7 through the splice plate 6. An example of application to a steel frame erection device 9 comprising a power unit 8 that supplies power is shown, and the steel frame erection device 9 is suspended and supported so as to be able to rise and fall while being suspended by a crane 10. It is configured to include a suspension device 11 and an arm device 12 that allows the left and right assembly devices 7 to capture and pull the joining hardware 5.

As shown in detail in FIG. 3, the above-mentioned suspension device 11 has a feed screw 14 having a left-hand threaded portion 14a and a right-handed threaded portion 141) at the center of the main body casing 13 which is suspended by a crane 10. The left-hand threaded portion 14a and the stone threaded portion 1 of the feed screw 14 are rotatably supported so as to extend in the direction.
A gear 15 is provided at the boundary of the motor 4b, and the gear 15 is attached to the shaft of a motor 16 with a brake (the drive gear 17 is meshed with the gear 15 to transmit the driving force of the motor 16 from the drive gear 17 to the gear 15). This allows the feed screw 14 to rotate, and the feed screw 14 has a left-hand threaded portion 1da.
and the right-hand threaded portion 14b, the actuating plate 1 is arranged to face the right-hand threaded portion 14b.
8a and 18b are screwed together, and the winter operating plate 18a18b
The front and rear kite rods 1 are arranged parallel to the feed screw 14.
9 to be slidably supported by the actuating plates 18a, and each actuating plate 18a,
18b has hanging wires 20a in two places, front and back, respectively.
20b, and the hanging wires 20a, 20
The (I! 2 ends of b) are installed at both left and right ends of the main body casing 13, and are led out below the main body casing 13 by hanging over each of the guide sheaves 21a and 21b and supporting beam 3 of the steel frame erection device 9. The support beam 3 is moved up and down by adjusting the hanging lengths of the hanging wires 20a and 20b by moving the operating plates 18a and 18b in opposite directions by rotating the feed screw 14. In Fig. 1, reference numeral 22 indicates a control device for sending drive commands and brake operation commands to the motor 16, and reference numeral 23 indicates a cover.

The arm device 12 has a structure as shown in detail in FIGS. 4 to 6. That is, the pace plates 24 are fixed to the outer end surfaces of the assembly devices 7 at both ends of the support beam 3, and the chisels 1 are arranged parallel to the vertical direction on the brackets 24a provided on the outer surfaces of the base plates 1 to 24. -Cylinder 2
A bracket 25a provided at the lower end of the hydraulic jack 27 is rotatably supported by a horizontally arranged pin 26, and the rod 2 of the hydraulic jack 27 is installed inside the base plate 24.
7a penetrates the base plate 24 and protrudes freely to the outside, and the guide tube 25 is attached to the tip of the rod 27a.
The bracket 25b at the upper end is connected with a pin, and an arm 29 is inserted into the guide tube 25 via a sliding bearing 28 to support the arm 29 so that it can move up and down under its own weight, and the hydraulic jack 27 By expanding and contracting, the guide tube 25 is tilted using the pin 26 as a fulcrum, and the arm 29 can be swung left and right.

The arm 29 has a hollow interior and an open lower end, and the interior is partitioned in the left-right direction by a partition wall 30 extending in the axial direction of the arm 29, with an inner chamber 31 on the inner side (hydraulic jack 27 side) and an outer chamber 31 on the outside. The inner chamber 31 is further partitioned in the front and rear direction by a partition wall 33 into front and rear end chambers 31a and a central chamber 31b therebetween.

In each of the front and rear end chambers 31a, a kite bar 35 with a buffer member 34 such as a spring or rubber interposed near the lower end is arranged so as to be movable up and down, and the guide bar 35 is rotated by a motor 36. The guide bar 35 is screwed onto a screw 37 so that the guide bar 35 can be moved in and out from the lower end of the arm 29 by rotation of the feed screw 37.
1b is provided with a support roller 39 supported by a hydraulic jack 38 at its lower end so that the support roller 39 can bear the entire load of the arm 29 when placed on the joint hardware 5. be. In addition, 40 is a storage detection sensor for the guide bar 35, 41 is also a protrusion sensor,
42 is a proximity sensor for detecting that the arm 29 is placed on the joint hardware 5; 43 is a proximity sensor for positioning the arm 29 on the upper flange 5a of the joint hardware 5 at a height that interferes with the lower end of the partition wall 30; It shows a protrusion made of square timber provided in the front-rear direction.

On the other hand, a clamp device 59 is housed in the outer chamber 32 of the arm 29. The clamping device 59 includes a pressing block 44 which is movable up and down in the outer chamber 32 and whose lower surface is pressed against the joint hardware 5, and a pressing block 44, which is located within the pressing block 44 and which moves the clamp 55 in the front and back direction. It consists of a clamp frame 49 having a clamp drive mechanism that moves and operates to clamp the joint hardware 5. To explain in detail, the upper flange 5 of the joint hardware 5
A pressing block 44 having a tread surface 44a formed on its lower end surface for pressing against the upper surface of a is housed in a lower position within the outer chamber 32 so as to be able to rise and fall freely, and is moved up and down into the outer chamber 32 via a sliding bearing 45 provided at the upper part. A hydraulic jack installed on the upper surface of the pressing block 44 is mounted on a movable frame 47 which is freely housed and arranged so as to be controlled from the lowered position by a stopper 46 which is fixed to the inner wall of the outer chamber 32. The upper end of the rod 48 is fixed, and the pressing block 44 is suspended and supported by a movable frame 47 via the hydraulic jack 48, and a clamp frame 49 is installed inside the pressing block 44 so as to be able to rise and fall freely. As shown in FIG.
Then, a feed screw 54 consisting of a left-hand threaded portion 54a and a right-hand threaded portion 54b, which is rotated by the drive of the motor 51 via gears 52 and 53, is positioned, and the feed screw 54 is arranged parallel to the front-rear direction. The clamp frame 49 is rotatably supported, and the left threaded portion 54a and the right threaded portion 54b of the feed screw 54 are provided with a tread surface 55a on the upper surface of the lower end for pressing against the lower surface of the upper 7 flange 5a of the joint hardware 5. The upper ends of a pair of C-shaped clamps 55 made of By moving the front and rear clamps 55 close together, the joint hardware 5 can be captured, and at the same time the pressing block 44 is pushed down by the extension operation of the hydraulic jack 48, the clamp 55 is pulled up via the clamp frame 49. This makes it possible to clamp the upper flange 5a of the joint hardware 5 by using the tread aha of the pressing block 44 and the tread 55a of the clamp 55. In addition, a capture sensor 57 for detecting the edge of the upper flange 5a when capturing the clamp 55 or the joint hardware 5 detects the inclination of the arm 29 in the front-back direction (X direction) and the left-right direction (Y direction). Tilt angle sensor 58
shows an engagement groove provided in a part of the lower end corner of the pressing block 44 on the partition wall 30 side for engagement with the protrusion 43 on the joint hardware 5.

When positioning the steel beam 1 with the steel frame erection equipment 9 holding the steel beam 1 suspended by the crane 10 via the suspension device 11, the entire suspended object is moved to a predetermined joint by operating the crane 10. This is carried out after transporting the hardware to the vicinity of the upper part between the hardware 5. At this time, each suspension wire 20a, 20 of the suspension device 11
Leave b in the winding (pull up) state. Further, the arms 29 of each arm device 12 at both ends of the steel frame erection device 9 are caused to vibrate as shown in FIG. 7 by the extension operation of the hydraulic jack 27, and are kept in an inclined state with the lower ends pushed inward.

When suspended by such a crane, the suspended object is constantly shaking due to crane boom photography, wind, etc., so in order to stop this shaking and make positioning easier, the operator must Looking at the direction of approach to the hardware 5, as shown in FIG.
The kite par 35 is caused to protrude from the lower end of the arm 29 by the drive of the crane 10 (for example, about 500 to 600), and the kite par 35 is brought into contact with the joint hardware 5 at low speed by the operation of the crane 10 to stop the swinging. After confirming this visually, the crane 10 is operated to roughly determine the position and the inclination in the front and back direction is corrected based on the signal from the inclination angle sensor 57, and the entire suspended object is lowered and the support roller 39 at the upper end of the arm 29 is lowered. is placed on the joint hardware 5, and the support roller 3
9 is detected by the proximity sensor 42, and the crane 10 is stopped.

Next, the guide bar 35 is pulled into the arm 29 and housed, and the motor 51 is driven to connect the pair of clamps 5.
5 in the direction of approaching each other, and the joint hardware 5 is captured and gripped from the front and rear directions.

Completion of capture is detected by a capture sensor 56. In this state, the hydraulic jack 27 is contracted to swing the arm device 12, and the lower end of the arm 29 is moved outward along the upper surface of the joint hardware 5.

At this time, if the hanging object is not located directly above the connecting hardware 5, as shown in FIG. The protrusion 43 is contacted first, but if the arm 29 continues to swing outward, the reaction force of the contact portion acts on the suspended object.
The entire hanging object is positioned in the left and right direction. In this case, since the length of the steel beam 1, the position of the protrusion 43 on the joint hardware 5, the dimensions of the arm 29, etc. are input as information, the upright posture of the arm 29 is detected by the inclination angle sensor 57. By detecting it, positioning in the left and right direction can be confirmed. Next, when the hydraulic jack 48 is extended, the pressing block 44 is lowered and comes into contact with the lower surface tread 44a or the upper surface of the joint hardware 5, as shown by the two-dot chain line in FIG. 44 cannot be lowered, so when the movable frame 47 is pushed up, the clamp frame 49 is lifted up and the clamp 55 is also pulled up.

As a result, the upper flange 5 of the joint hardware 5 is moved by the tread surface 44a of the pressing block 44 and the tread surface 55a of the clamp 55.
It will be clamped in the vertical direction. Furthermore, by adjusting the pressure of the hydraulic jack 48, the steel frame erection device 9
It can be adjusted by causing the entire front and back inclination.

Next, the motor 16 of the suspension device 11 is driven to lower each of the suspension wires 20a and 20b, and the steel frame erecting device 9 is lowered to cause the steel beam 1 to enter between the joint fittings 5 and to be seated. At this time, the arm 29 clamps the joint hardware 5 by the pressing block 44 and the clamp 55 to maintain an upright state, and is lowered together with the kite tube 25 or the steel frame erection device 9. In addition, in the above, in the steel frame erection (temporary assembly), if there is an error in the column erection, the steel beam 1 may not necessarily be inserted between the joint fittings 5, so it is necessary to correct the span between the columns. be. In such a case, since the lower end of the partition wall 30 of the arm 29 and the engagement groove 58 of the lower end of the pressing block 44 are engaged with the protrusion 43 on the joint hardware 5, when the hydraulic jack 27 is operated. The swinging force of the arm 29 with the pin 26 as a fulcrum acts on the protrusion 43 to push and pull the joint hardware 5, and the column span is corrected by this push and pull. After the steel beam 1 is seated, assembly work such as bolting the splint 6 to the upper flange 5a is performed using the assembly device 7, and after the assembly is completed, the clamped state is released by the pressing block 44 and the clamp 55. , the clamp 55 is separated to release the grip, and the hanging wires 20a, 20b of the hanging device 11 are wound up and separated from the joint hardware.

In this way, the steel beam 1 can be automatically positioned between the joint fittings 5 without requiring the troublesome inching operation of the crane 10 or the intervention of special skilled workers.

Next, FIG. 8 shows another embodiment of the arm device 12, in which instead of the above embodiment in which the arm 29 can be raised and lowered by its own weight, a lifting device is used between the arm 29 and the guide tube 25. An elevating jack 60 is interposed so that the arm 29 can be raised and lowered by extending and contracting the elevating jack 60.

In the case of the arm device 12 shown in FIG. 8, when the elevating jack 60 is retracted, the arm 29 can be raised along the guide tube 25, so that the support roller 39 at the lower end can be moved onto the joint hardware 5. If the above operation is carried out in the mounted state, the steel frame erection device 9 integrated with the guide tube 25 can be lowered with respect to the arm 29, thus making the suspension device 11 in the above embodiment unnecessary. I can do it.

9 and 10 show another example of the clamp device 59, in which, instead of the C-shaped clamp 55 in FIG. 6, a kite 55b that extends downward in the left-right direction in a V-shape is provided at the bottom.
The clamp 55 is provided with a groove 55c on the top of the guide 55b to engage with the protrusion 43, and a guide 55d is formed at the lower part of the opposing surface of each clamp 55 to extend downward in the front and rear direction in a 7-shape shape. Furthermore, a tread surface 55a is formed on the opposing surface of each clamp 55, respectively.

In the case of the clamp device 59 shown in FIGS. 9 and 10, each clamp 55 has guides 55b and 55d extending in a V-shape in the front and back and left and right directions at the bottom, so that it is easy to capture and grip the joint hardware 5. The guide bar 35 can be made unnecessary.

FIG. 11 shows still another example of the clamp device 590, in which clamps 55 shaped so as to be able to pinch the protrusion 43 from the left and right sides are supported on the lower end of the arm 29 so as to be openable and closable. It is connected to a hydraulic jack 62 via a link 61, and can be opened and closed by the operation of the hydraulic jack 62.

Also in the clamp device 59 of FIG. 11, the clamp 55
By opening and closing, it is possible to capture and hold the shikaguchi hardware 5.

It should be noted that the present invention is not limited to the above embodiments, and the suspension wires 20a, 20b in the suspension device 11
As a mechanism for moving the actuating plates 18a and IBb in order to wind up and lower the feed screw 14, instead of the mechanism in which the feed screw 14 is rotated by the motor 16, the actuating plates 18a and 1 are used.
A hydraulic jack may be installed between the hydraulic jacks 27 and 8b, and a screw mechanism may be used in place of the hydraulic jack 27 as the swinging device for swinging the arm 29 in the arm device 12. Of course, a screw mechanism may be used in place of the hydraulic jack 48 in the clamping device 59, and various other changes may be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the steel beam positioning device of the present invention, by operating the arm device and the suspension device, the steel beam can be positioned by capturing and gripping the joint hardware, correcting the column span, etc. Since the positioning of the crane can be performed automatically, there is no need for conventional crane inching operations or dangerous work by special skilled workers at heights.Also, in place of the above-mentioned suspension device, the arm device can be used as an elevating device. It can be carried out in the same way even if equipped with a 3D construction method.Furthermore, the structure and system are simple, so it is easy to handle, and it can be applied directly to conventional construction methods.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a steel frame erection device showing one embodiment of the steel beam positioning device of the present invention, Fig. 2 is a view taken from the ■-■ arrow in Fig. 1, and Fig. 3 is a detailed view of the suspension device. 4 is a cutaway front view showing details of the arm device, FIG. 5 is a view taken along the v-■ arrow in FIG. 4, FIG. 6 is a view taken along the Vl-Vl arrow in FIG. 4, Fig. 7 is a schematic diagram showing the operating state, Fig. 8 is a schematic diagram showing another example of the arm device, Fig. 9 is a schematic diagram showing another example of the clamp device, and Fig. 10 is a side view of Fig. 9. 11 are schematic diagrams showing still another example of the clamp device. 1... Steel beam, 2... Gripping device, 4... Steel column,
5... Joint hardware, 7... Assembly device, 9... Steel frame erection device, 11... Suspension device, 12... Arm device,
29... Arm, 59... Clamp device, 60...
- Lifting jack (lifting device). Figure 8 Figure 5 Figure 6 Figure 1

Claims (2)

[Claims] (1) A suspension device that lifts and lowers a steel frame erection device that grips a steel beam, and an arm device that is supported at both left and right ends of the steel frame erection device so as to be able to swing freely in the left and right direction. What is claimed is: 1. A positioning device for a steel beam, characterized in that the arm device is equipped with a clamp device for capturing and gripping a joint fitting of a steel column on an arm that is movable up and down. (2) The steel beam positioning device according to claim (1), wherein the arm device is equipped with a lifting device that lifts and lowers the steel frame erecting device, instead of lifting the steel frame erecting device using a suspension device.