JPH0542283U - Telescopic suspension beam device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a telescopic suspension beam device with a large span adjustment allowance, and to enable transportation of long materials with a large difference between large and small lengths with a single telescopic suspension beam device. [Structure] A main beam 1 of a fixed length horizontally supported by hoisting ropes on a traverse trolley of a traveling cage and a longitudinally symmetrical position of the main beam 1 movably provided in a longitudinal direction of the main beam 1 via a drive mechanism. It is provided with a pair of telescopic beams 2 and a suspender 3 movably provided on the telescopic beam 2 in the longitudinal direction of the telescopic beam 2 via a drive mechanism. In addition, a trolley 32 in which the lifting tool 3 is movably provided in the longitudinal direction of the telescopic beam 2 via a drive mechanism on the telescopic beam 2.
And a suspension member 37 rotatably supported on the carriage 32 via a drive mechanism. Further, the suspension 3 is composed of a carriage 32 that is movable in the longitudinal direction of the telescopic beam 2, a swing frame 33 that is swingably supported by the carriage 32 through a drive mechanism, and a lifting magnet 36 that is axially supported by the swing frame 33 so as to be tiltable. I am configuring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a telescopic suspension beam device, and more particularly to a telescopic suspension beam device suitable for lifting and conveying long objects.

[0002]

[Prior Art]

 One of the telescopic suspension beam devices is a telescopic container spreader.

The telescopic container spreader has a pair of telescopic beams built into a fixed beam, and a twist lock suspension is fixedly installed at the ends of the telescopic beam. The span of the twist lock suspension is fixed at both ends of the fixed beam and the stretched beam. It can be adjusted to and so that it can also be used for lifting large and small containers.

[0004]

[Problems to be solved by the device]

 When lifting and transporting long materials such as structural steel pipes, there are large variations in the material length.Therefore, the telescopic suspension beam that can also be used for lifting large and small length materials has a minimum to maximum adjustment range of the suspension point span. Up to three times more is required.

However, in the conventional telescopic container spreader mechanism, the minimum to maximum suspension point span adjustment allowance is about twice, so when applying this mechanism to a suspension beam for long materials, However, a single suspension beam was not enough, and multiple suspension beams were needed for small spans and large spans.

In order to solve such a conventional problem, the present invention provides a telescopic suspension beam device with a large span adjustment allowance, and a single telescopic suspension beam device can convey a long material having a large difference in size. Its purpose is to make it possible.

[0007]

In order to achieve this object, a telescopic suspension beam device according to the present invention comprises a main beam of a fixed length horizontally supported by a hoisting rope on a traverse trolley on a traveling carriage. , A pair of expansion beams movably provided in the longitudinal direction of the main beam via a drive unit in the longitudinal direction of the main beam, and a lifting device movably provided in the longitudinal direction of the extension beam via a drive mechanism on the extension beam. I have it. In addition, the above-mentioned suspending tool is constituted by a suspending member which is rotatably supported on a telescopic beam via a drive mechanism.

[0008] Furthermore, the above-mentioned suspending tool is composed of a carriage that is movable in the longitudinal direction of the telescopic beam, a frame that is rotatably supported by the carriage via a drive mechanism, and a lifting magnet that is rotatably supported by the swing frame. Configured.

[0009]

[Action]

 According to this structure, the telescopic beam is supported by, for example, the support roller group in the main beam, and moves from the position in the main beam to the overhanging position (longitudinal direction) via the drive mechanism, and the suspender moves in the telescopic beam. For example, it is supported by traveling rollers and can move from end to end of the telescopic beam via a drive mechanism.

[0010] When the pair of telescopic beams are separated into the main beam and the hoisting tool is deviated toward the center of the main beam on the telescopic beam, the hoisting device has a minimum span, and from this state, the hoisting device is stretched. The elastic beam moves to the both sides from the inside of the main beam to the maximum, and the lifting device has the maximum span.

A desired span can be obtained by the lengths of the main beam and the expansion beam, and a minimum span keeps a constant minimum distance regardless of the lengths of the main beam and the expansion beam. The beam device can be freely designed.

Since the suspension member or the lifting magnet of the suspension tool can be swung with respect to the carriage on the telescopic beam via the drive mechanism, the orientation of the suspension member or the lifting magnet can be freely set for the load to be suspended.

When the load suspended on the suspending member or the lifting magnet is eccentric, the suspending member or the lifting magnet is tilted and stabilized around the supporting axis of the swing frame of the bogie, and the bending beam is applied to the telescopic beam and the main beam. It is stable and horizontally stable.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention, FIGS. 1 and 2 show a front view of a telescopic suspension beam device according to the present invention in a telescopic state, and FIG. 3 shows a side surface thereof.

1 to 3, the telescopic suspension beam device according to the present invention comprises a main beam 1 which is horizontally suspended by a hoisting rope 12 on a traverse trolley of a traveling cabritory, and a main beam 1 which is moved in a longitudinal direction. It is provided with a pair of telescopic beams 2 that are movably attached, and a suspender 3 that is movably attached to each telescopic beam 2 in the longitudinal direction.

In the figure, the main beam 1 has a downward grooved sectional structure, and is horizontally supported by a hoisting rope 12 extending from a traverse trolley of a crane by a sheave block 11 mounted on the upper surface and is moved up and down. The cable basket 13 on the main beam 1 stores the power cable 14 connected to the crane side.

Similar to the main beam 1, the pair of telescopic beams 2 and 2 has a downward groove-shaped cross-sectional structure, and each has a longitudinal rail 21 protruding to the outer surface of the side portion, a longitudinal rack 22 on the upper surface, Flange-shaped rails 23 are provided at the lower ends of both sides. The side rails 21 engage between the upper roller 15 and the lower roller 16 mounted on the inner wall surface of the main beam 1 in the vertical direction, and support the telescopic beam 2 movably in the longitudinal direction of the main beam 1. The rack 22 on the upper surface meshes with a pinion 18 driven by a motor 17 provided on the main beam 1. The pair of motors 17 and 17 are synchronously driven to bilaterally extend and retract the pair of telescopic beams 2 1 and 2 2.

The hanger 3 has a carriage 32 movably supported by a flange-shaped rail 23 of the telescopic beam 1 via rollers 31, a swing frame 33 attached to the carriage 32, and a swing frame 33 orthogonal to the swing frame 33. The suspension member 37 is provided with a lifting magnet 36 (hereinafter, abbreviated as a lift mag) attached by shafts 34 and 35 in the direction. A motor 38 for traveling the bogie and a motor 39 for the turning frame are provided on the bogie 32.

The hoisting tool 3 can be used by attaching a hoisting member of any type such as a grip type, a hook type, a fork type or the like to the carriage 32 with or without the swivel frame 33 interposed therebetween. The mounting frame 40 holds the riff mag 36 via the chain 41. The attachment frame 40 is attached to the swivel frame 33 by a connecting block 42. The connecting block 42 connects the mounting frame 40 and the swivel frame 33 via shafts 34 and 35.

The hanger 3 is shown in FIG. 2 in which the telescopic beam 2 is drawn to a cut-off position in the main beam 1 and is cut off to the inner end of the telescopic beam 2, that is, to the central side of the main beam 1. It becomes the minimum span in the lifting tool positions 3a, 3a, and from this state, the lifting tool 3 is moved to the opposite end of the stretching beam 2 (the lifting tool position 3b shown in FIG. 2) to maximize the stretching beams 2 and 2. When approaching the overhang position, the lifting tool positions 3c, 3c shown in Fig. 1 become the maximum span.

As shown in FIGS. 1 and 2, the lifting tool positions 3 c, 3 c, which are the maximum spans of the lifting tool 3, can be set large in proportion to the lengths of the main beam 1 and the telescopic beam 2. On the other hand, the lifting gear positions 3a and 3a, which are the minimum span, can be held at the same maximum span regardless of the lengths of the main beam 1 and the telescopic beam 2, and thus have a large lifting gear span adjustment margin in any desired range. . Therefore, it is possible to provide a suspension beam whose span can be freely adjusted within the adjustment allowance.

Further, as shown in FIG. 3, when the long member 45 to be lifted is lifted up to one side of the riff mug 36, the riff mug 36 freely tilts around the shaft 34 and stands still, The tilting moment is not transmitted to the telescopic beam 2 and the main beam 1.

By this action, the swing of the entire suspension beam caused by the inclination of the main beam 1 itself is prevented. Further, when the long member 45 is hoisted from the narrow valley-shaped place by the riff mug 36, and when it is hoisted in the opposite direction, the swivel frame 33 is swung 90 ° in an empty state and the longitudinal direction of the rectangular riff mug 36 is set to the longitudinal direction of the main beam 1. By aligning with each other, it becomes possible to easily lift or suspend the long member 25 placed in a narrow place.

Further, the present invention is not limited to the above-mentioned embodiment, and the structures of the main beam 1, the telescopic beam 2 and the hanger 3, the way of combining them, etc. are within the scope of the gist of the present invention. It can be freely modified and implemented within the enclosure.

[0025]

[Effect of the device]

 The present invention has the following effects with the configuration described above.

(1) A telescopic suspension beam device is a main beam that is horizontally supported by hoisting ropes of a crane, and a pair of telescopic beams that are movably provided in the longitudinal direction of the main beam through a drive mechanism at positions symmetrical to the main beam. And a suspender movably mounted on the same telescopic beam in the longitudinal direction of the telescopic beam via a drive mechanism.By appropriately designing the main beam and the telescopic beam length, it is possible to freely set a large suspension span. A suspended beam device having an adjustment allowance can be provided. (2) By operating the movement of the lifting gear and the movement of the telescopic beam in the order or in reverse, the position of the lifting gear can be easily grasped and the lifting gear span adjustment can be easily performed.

(3) By constructing the suspending tool from a carriage that moves on the telescopic beam and a suspending member that is supported by the carriage to be rotatable via a drive mechanism, the direction of the suspending member can be swiveled depending on the situation. Therefore, it is easy to lift long materials in a narrow space.

(4) Since the lifting tool is a lifting magnet that is axially supported so as to be tiltable on the swivel frame, the lifting tool can be freely tilted due to the deviation of the long material being lifted, and the tilting of the hanging beam main body. The vibration caused by can be prevented and the safety of transportation work can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing a telescopic suspension beam device according to a first embodiment of the invention in an extended state.

FIG. 2 is a front view showing the telescopic suspension beam device shown in FIG. 1 in a contracted state.

FIG. 3 is a side view taken along the line AA shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main beam, 2 ... Telescopic beam, 3 ... Suspension tool, 3a ... Suspension tool at the minimum span position, 3c ... Suspension tool at the maximum span position, 11
... Sheave block, 12 ... Winding rope, 13 ... Cable basket, 14 ... Cable, 15 ... Upper roller, 16 ... Lower roller, 17 ... Motor, 18 ... Pinion, 21 ... Side rail, 22 ... Top rack, 23 ... Flange Rails, 31 ... rollers, 32 ... carriage, 33 ... swivel frame,
34, 35 ... Support shaft, 36 ... Rifmag, 37 ... Hanging member,
38, 39 ... Motor, 40 ... Mounting frame, 41 ... Chain, 42 ... Connection block, 45 ... Long material.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Fujio Aihara 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries Hiroshima Works

Claims (3)

[Scope of utility model registration request] 1. A main beam of a fixed length horizontally supported on a traverse trolley or the like of a traveling squirrel via hoisting ropes, and a longitudinally symmetrical position of the main beam movably provided in a longitudinal direction of the main beam via a drive mechanism. A telescopic hanging beam device comprising a pair of telescopic beams and a suspending device movably provided on the telescopic beams in the longitudinal direction of the telescopic beam via a drive mechanism. 2. The hoisting tool comprises a carriage mounted on a telescopic beam via a drive mechanism so as to be movable in the longitudinal direction of the telescopic beam, and a suspension member rotatably supported on the cart via the drive mechanism. The telescopic suspension beam device according to claim 1, which is characterized in that. 3. The hoisting device comprises a bogie that is movable in the longitudinal direction of the telescopic beam, a frame that is pivotally supported by the bogie via a drive mechanism, and a lifting magnet that is axially supported by the frame so as to be tiltable. The telescopic suspension beam device according to claim 1, which is configured.