JPH061585A - Automatic slinging work hoisting accessory for roll with bearing housing - Google Patents

Abstract

PURPOSE:To provide an automatic slinging work hoisting accessory which allows a single operator to operate a crane to perform safe and accurate slinging work for a rolling roll with a bearing housing. CONSTITUTION:An automatic slinging work hoisting accessory has one set of hoisting accessory main bodies 5 provided at their both ends with a wire rope 13 for hoisting a roll 2 and an elevating boom 17 fitted thereto, and a hoisting accessory frame 4 to which the hoisting accessory main bodies 5 are slidably installed in parallel. A second drive means is provided in the hoisting accessory main bodies 5 to engage the hoisting accessory main bodies 5 with a moving means provided on the hoisting accessory frame 4 and to operate a first drive means 8, thereby operating the elevating booms 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic slinging device for rolling rolls with a bearing box, and a slinging operation for rolling rolls with a bearing box can be carried out safely and accurately by a crane operation by one crane operator. It is intended to provide a sling hanger.

[0002]

2. Description of the Related Art Rolling rolls are handled with a bearing box attached, but the roll with a bearing box has an assembly weight of 60 to 70 tons and a crane lifting load of 70 tons.
In order to lift and operate the ton more than a ton, it requires four cues or auxiliaries to hang the hoisting pins provided on both sides of each bearing box at both ends of the roll for hoisting. Since this requires a crane operator, it requires five workers, and its operation is complicated and laborious.

Incidentally, as a simple rolling roll suspension without a bearing box, conventionally, a roll generally placed on a roll stand is fixed to four frames of a suspension frame by a crane hook or the like, and each of these shuckles is fixed. A hook is attached, one nylon sling is hung by two such hooks, and two nylon slings that hang up both ends of the roll by a total of four hooks are hung to perform the intended roll hoisting. ing.

In the original application specification of Japanese Utility Model Application No. 55-69525, which was published in Japanese Utility Model Application Laid-Open No. 56-173584, as shown in FIG. 8, a roll 1 stored in a roll stand 30 is shown in FIGS. 9 and 10. It is disclosed that hoisting is carried by a hoisting tool 31 as shown, that is, two sets of two shackles 32, one set, are welded and fixed to a frame 33 hoisted by a crane hook or the like at an interval corresponding to a roll hoisting position. Hooks 34 are attached to these shackles 32, and the ends of the wire ropes are respectively hung from the hooks attached to the one set of shackles.
It has been proposed that after the wire rope 35 is moved to the position of the neck portion of the roll 2 by a crane as shown in FIG. 1, the wire rope on the opposite side is slung on the roll neck portion by a slinging worker.

The above-mentioned conventional lifting of the roll with a bearing box requires not only the crane operator but also four cues or assistants, which is very complicated and not easy, and the danger is high.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the case of the prior application technology disclosed in 173584, the crane side worker for moving the wire rope to the neck portion of the roll and the wire rope detaching work for slinging the wire rope on the opposite side to the roll neck portion by the slinger That is, the crane operator and the slinging operator for attaching and detaching the wire rope are required for each one, preferably about three.

In this case, the shackle 32
Is welded and fixed at intervals corresponding to the roll hoisting position, so the length dimension of the roll that can be hoisted is fixed.Therefore, prepare a plurality of roll hoisting tools according to the roll length. It is necessary to change and adopt.

In particular, in the case of the above-mentioned roll with a bearing box, four wire ropes must be attached / detached because the two hanging pins to which the wire rope is to be attached are provided on both sides of each bearing box on both ends of the roll. More slender workers are required than in the case.

[0009]

DISCLOSURE OF THE INVENTION The present invention has been studied to solve the above-mentioned problems in the prior art, and swings a lifting boom for holding a hanging wire rope with respect to a sling of a roll with a bearing box and a crane. Succeeded in the automatic slinging of the roll with the bearing box, which effectively guides the roll-hanging wire rope to the roll-hanging position and securely slings the roll in a stable state by a combination of the hoisting and lowering operations. It was done as follows.

(1) A wire rope for suspending a roll, a pair of suspender main bodies in which lifting booms attached to the wire rope are opposed to each other on both ends, and these suspender main bodies are slidably opposed to each other. An upper lifting device main body having a lifting device frame, engaging the lifting device main body with a moving device provided on the lifting device frame, and operating the moving device with a first driving device also provided on the lifting device frame. An automatic sling hanger for a roll with a bearing box, characterized in that a second drive means for operating the lifting boom is provided on the.

(2) The moving means provided on the suspension frame connects a pair of screw shafts with the screw directions reversed to each other with a coupling shaft, and the screw nuts provided on the suspension main body are connected to the respective screw shafts. The automatic sling hanger for rolls with a bearing box according to item (1), characterized in that they are engaged with each other.

[0012]

[Operation] A wire rope for suspending a roll and an elevating boom attached to the wire rope are opposed to each other on both sides.
A pair of suspender main bodies, and a suspender frame in which the suspender main bodies are slidably provided, and the suspender body is engaged with the moving means provided on the suspender frame and is also provided on the suspender frame. By operating the moving means by the first driving means, the suspension main body is moved and adjusted in accordance with the size of the roll to be applied, and the wire rope is hung by the lifting boom of the suspension main body.

By providing a second drive means for operating the above-mentioned lifting boom in the above-mentioned lifting device main body, the wire rope hanging from the above-mentioned lifting boom is operated to lift the suspension provided in the roll bearing box. Attach and detach the wire rope to the pin.

The moving means provided on the suspension frame connects a pair of screw shafts with the screw directions reversed to each other by a coupling shaft, and the screw nuts provided on the suspension body are engaged with the respective screw shafts. By doing so, the lifting device main body can be smoothly moved and adjusted under symmetrical and balanced conditions, and a stable roll lifting and hanging condition is formed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the present invention as described above will be described with reference to the accompanying drawings. As shown in FIG. 1, a roll 2 has bearing boxes 1 and 1 attached to both ends thereof. As shown in FIG. 3, suspension pins 3 are separately provided on both sides of the bearing box 1.

The outline of the apparatus for slinging and hoisting the rolling roll 2 with a bearing box as described above is as shown in FIG. 1, and the hoisting frame 4 having the suspension seats 12 in the middle is the hoisting tool at both ends thereof. The main bodies 5 and 5 are oppositely installed, and the hanging body 5 is shown in FIG.
As shown in FIG. 3, an electric winch 20 having a geared motor and a torque limiter and having a wire drum 15 as a second driving means is provided, and the boom rope 14 pulled out from the wire drum 15 is attached to the lifting device main body 5. It is connected to the tip of the elevating boom 17 via wire sheaves 16 provided at both ends.

The elevating boom 17 is formed by square members 17a and 17c as shown in FIG.
By the shaft support 17b formed at the base end of a
The square member 17c is fixed to the middle of a spring tube 28 as will be described later.
The tip end of the square member 17c is inserted into the open end 17d of the above, and the insertion depth is defined by the stopper 17e attached to the outer surface of the square member 17c on the tip side. The shaft support 17b has a tubular shape and is supported by a bolt inserted into the lifting device body 5 as shown in FIG. 1 to regulate the rotational twist of the elevating boom 17 and keep the direction fixed.

As shown in FIG. 4 in addition to FIG. 1, a spring tube 18 is provided at the tip of the elevating boom 17, and the ends of the coil springs 18 installed in the spring tube 28 are located on both sides of the spring tube 28. The roll-hanging wire rope 13 is joined to the flange portion 24 of the end member 23 attached to the connecting member 22, and as described above, the elevating boom 17 is a rectangular tube member that is stretchably fitted and has a rectangular shape. The fitting structure prevents them from rotating with each other, and the spring cylinder 28 having the coil spring 18 as described above and fixed to the lower end thereof is positioned between the roll suspension ropes 13, 13 so that the rope 13 The intermediate portion (specifically, the connecting member 22 portion) is spread out to make the gap larger than the diameter of the hanging pin 3 and the intermediate portion of the rope 13 is twisted (or twisted). It is sealed.

That is, the intermediate portion or the tip end side of the rope 13 is substantially exactly brought into the state shown in FIG. 1. Therefore, the crane operator can hoist and unwind the crane and the electric winch 20 shown in FIG. It is possible to securely hook the rope 13 on the suspension pins 3 of the roll 2 simply by opening and closing the lifting boom 17 in the open state shown by the two-dot virtual line in FIG. 3 and the closed state shown by the solid line. By lifting the roll 2 with a crane, the lifting boom 17
1 and FIG. 2 at each position, the rope 13 is vertically displaced and the upper portion of the rope 13 is automatically squeezed (the coil spring 18 of the spring tube 28 is pulled by the tension force acting on the rope 13). (Compression), and securely holds the roll 2 by hanging.

The boom rope 14 attached to the tip of each lifting boom 17 as described above is pulled by the load of the roll 2 when the roll 2 is hoisted as described above, and the torque limiter 19 operates. The limiter 19 slips against the set torque and is unwound from the drum 15. Therefore, the lifting boom 17 and the ropes 13, 1
4 is operated by automatically taking orderly related positions, and a single slanting operation can be performed by one crane operator without touching those members.

As described above, the stopper 17e fixed to the rectangular member 17c can be set by appropriately changing the set position by tightening means such as bolts, and the stopper 17e with respect to the spring tube 28 of the roll suspension wire rope 13 can be set. Adjust the stroke between the bundling position and the upper wire rope suspension pin to give proper tension to the wire ropes, and to adjust the tension state when each wire rope is stretched by use.

According to the present invention, when the types of rolls to be applied are limited to several types, the opening degree of the lifting boom 17 adapted to each roll type is preset to several stages (a limit switch or a proximity switch). The crane operator can select the opening according to the type of roll, and the crane operator can select the opening to automatically obtain the appropriate opening for the target roll. Easy lifting and hanging is possible.

Further, as shown in FIG. 1, screw shafts 9 and 9 as moving means are rotatably provided horizontally by bearings 25, 25 and 25, 25 on the above-mentioned suspension frame 4 as described above. These two screw shafts 9 and 9 are formed with threads in which the screw directions are reversed, and the connecting shaft 10a is connected by the joints 10 and 10.

However, as shown in FIG. 5, the screw nuts 6 provided on the upper portions of the above-mentioned suspension main bodies 5 and 5 are respectively screwed onto the screw shafts 9 and 9 which are horizontally connected to each other in this manner. In addition, the transmission wheel 26 is attached to the outer end of one of the screw shafts 9 as shown in FIG. 1 as well as FIG. An interlocking means such as a chain or a belt provided by the screw shaft drive motor 8 is provided and rotated appropriately.

As shown in FIG. 3, protrusions 5b are formed on the upper parts of the suspender main bodies 5 and 5, and the protrusions 5b are provided with engaging portions 5a on both sides of the upper end side as shown in FIG. Was set up,
These engaging portions 5a are engaged with the sliding rails 11, 11 of the hanging tool frames 4, 4 via the slide liner 7,
Therefore, the suspension frames 4 and 4 can freely move in the longitudinal direction, and the suspension main bodies 5 are symmetrically moved in the longitudinal direction of the suspension frame 4 by the rotation of the screw shaft 9 as described above. Made to be slid into.

FIG. 3 by the above-mentioned roll suspension wire 13.
It is as shown in FIGS. 3 and 4 that the load at the time of lifting as shown in FIG. 4 is supported by the sliding rails 11, 11 of the lifting tool frames 4, 4 via the respective lifting tool bodies 5 as described above. As described above, since the operation of the lifting tool bodies 5 and 5 and the operation of the roll-hanging wire rope 13 via the lifting boom 17 can all be performed in the operator's cab, the four-point slinging work with the bearing box is performed in the single crane It can be carried out smoothly by the driver, and can be carried out safely and reliably.

In the figure, 27 is a balance weight, which is provided so as to balance with the drive motor, and 28 is a limit switch, which detects and controls the open / close limit of the lifting device body 5. A power relay box 29 is provided with a connector 29a. Further, a scale 4a is provided on the side surface of the lifting tool frame 4 to display the set position of the lifting tool body 5 and the lifting pins 3, 3
Adjustment display is performed in advance at intervals of 3.

It is needless to say that the present invention can be applied to the handling of a long member having a bearing box such as an axle other than the rolling rolls.

[0029]

As described above, according to the present invention, one crane operator can perform a work operation without touching a roll or a wire for suspending a roll with a worker, and a reliable slinging work for a roll with a bearing box. Since the hoisting position can be freely selected, it can be appropriately adopted for several types of rolls with different hoisting intervals. Since it is possible to carry out effective work under any work conditions and to ensure sufficient reduction of work personnel, labor saving and appropriate safety, it is an invention that is industrially highly effective. is there.

[Brief description of drawings]

FIG. 1 is a plan view showing a general configuration of a rolling roll automatic sling hanger according to the present invention in a roll suspension state.

FIG. 2 is a plan view of a suspender part of the one shown in FIG.

FIG. 3 is a side view of what is shown in FIGS. 1 and 2, and also shows an opening / closing operation relationship of the roll suspension wire.

4 is a sectional side view taken along line IV ... IV in FIG.

5 is a cross-sectional view taken along line V ... V in FIG.

FIG. 6 is a partially cutaway perspective view of the lifting boom.

FIG. 7 is a side view of an opening / closing screw portion provided on the hanging tool frame.

FIG. 8 is an end view showing a state in which a roll is stored in a roll stand according to the related art.

FIG. 9 is a side view of a state in which the roll is lifted up according to the prior art.

FIG. 10 is a front view of the suspender.

11 is a front view showing a slinging operation of a roll with respect to the hanging tool of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bearing box 2 Rolling roll 3 Suspension pin 4 Suspension frame 5 Suspension tool body 5a Engagement part 5b Projection of suspension tool body 6 Screw nut 7 Slide liner 8 Screw shaft drive motor 9 screw shaft which is the first driving means 10 Coupling Shaft 11 Opening / Closing Sliding Rail 12 Suspension Seat 13 Roll Suspending Wire Rope 14 Boom Rope 15 Wire Drum 16 Wire Sheave 17 Lifting Boom 18 Coil Spring 19 Torque Limiter 20 Electric Winch 21 Geared Motor 22 as Second Driving Means Member 23 End member 24 Collar portion 25 Bearing 26 Transmission wheel 27 Balance weight 28 Limit switch 29 Power supply box 29a Connector 30 Roll stand 31 Lifting tool 32 Shackle 33 Frame 34 Hook 35 Wire rope

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Tanii 2-14-5 Higashitegicho, Fukuyama City, Hiroshima Prefecture Suganami Bussan Co., Ltd.

Claims (2)

[Claims] 1. A wire rope for suspending a roll, a pair of suspender main bodies in which lifting booms attached to the wire rope are opposed to each other on both ends, and a suspension in which the suspender main bodies are slidably opposed to each other. A suspender frame, wherein the suspender frame is engaged with the suspender body, and the suspender frame is also actuated by the first drive means. An automatic sling hanger for a roll with a bearing box, comprising a second drive means for operating the lifting boom. 2. A pair of screw shafts, in which the moving means provided in the suspension frame has screw directions reversed, are connected by a coupling shaft, and each of the screw shafts is provided with a screw nut provided in the suspension body. The automatic sling hook of a roll with a bearing box according to claim 1, which is engaged.