JPH02204297A - Automatic sling device - Google Patents

Abstract

PURPOSE:To make it possible to correspond to various kinds of suspended objects loaded with a large number of long sized weight bodies by making the space between automatic sling parts as well as the space between the hanging arms of the automatic sling parts adjustable. CONSTITUTION:The space between automatic sling parts 11 hung at the both end parts of a telescopic beam is freely adjusted from the extremely close state to the distant state, and the automatic sling parts 11 are inclined against the telescopic beam within the specified range. In addition, the space between a front and a rear hanging arms 31, 51 is also adjustable while being kept in the parallel state, and in case of putting a band sling over this space to hang a weight body such as I-shaped steel, a link arms 26 contract or stretch and thereby the lower ends of the front and rear arms 31, 51 are drawn near or separated, so that unnatural force is not applied to the hanging arms 31, 51.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic sling device suitable for lifting long heavy objects such as a large number of piled one-section steels.

[Conventional technology]

Conventionally, ff1i of long bar-shaped members such as L-beams piled up
To lift an object and move it to another position, a worker f1 hangs a wire on the object, lifts it with a crane, and moves it. However, this method requires time and skilled manpower to attach the wires, and is a dangerous and inefficient work.

Therefore, in order to solve this problem, the present inventors have proposed a 1R device that can easily lift and move 1-section steel etc. (Japanese Patent Publication No. 55-48558).

[Problems that Akira and Akira are trying to solve] However, although the H-type device can efficiently lift and move L-beams, etc. without the need for manpower, it does not require the use of lifting members (wire slings). The pull-out mechanism is driven by a multi-stage pulley driven by the expansion and contraction of the Urasho cylinder, or by a winch, etc., and also prevents the wire sling from being pulled out when lifting L-beams, etc. Since this is carried out by stopping the ah pressure cylinder or winch, these must be incorporated into the beam of the portal-shaped plate, etc., making the beam unnecessarily large and complicating the entire device. In addition, it is not possible to respond to changes in the width of the lifted object by stacking L-shaped steel, etc., and
It takes time to lift the platform by changing the spacing between the gate-shaped frames. Furthermore, since a wire sling is used, the more times the wire is lifted, the more the wire becomes curly and becomes difficult to operate. Furthermore, when extending a long steel strip, the steel strip is bent by the driving force applied to the steel strip, resulting in a disadvantage that the steel strip cannot be extended smoothly.

In view of the above-mentioned circumstances, the present invention can freely adapt to the width and length of the suspended object, allows the steel strip to be smoothly extended, does not cause the sling to become bent even after repeated lifting, and is suitable for ships, etc. The purpose of the present invention is to provide an automatic slinging device that can cope with the tilting of ships, etc. when loading.

[Means to solve the problem]

In order to achieve the above object, the r] moving sling device of the present invention includes a fixed beam extending in the left-right direction and a moving beam that is attached to the lower portions of both sides of the fixed beam and moved in the left-right direction by a drive mechanism. An automatic sling device having a telescoping beam consisting of a telescoping beam, a saddle each attached to the lower part of the moving beam and driven along the moving beam by a drive mechanism, and an autosling part whose upper end is suspended from these saddles. The auto sling section includes an opening/closing drive section that incorporates a hanging arm opening/closing mechanism therein, and one end of the opening/closing drive section is rotatably attached to the opening/closing drive section about a left-right axis. At the other end, there are two main arms that open in a figure eight shape, with hanging arms located opposite the front and back of the opening/closing drive unit rotatably attached to the left and right axes, and approximately in the center of these main arms, there are an inverted 71-shaped link, one end of which is rotatably attached to an axis in the direction, and the other end is rotatably attached to a drive member provided in the opening/closing drive unit and driven up and down by an axis in the left and right direction; One end of the above-mentioned main arm is attached to the opening/closing drive unit, and the main arm is attached below the position so that it can rotate freely by a left-right axis, and the other end holds the front and rear hanging arms in parallel, and the front and rear hanging arms are attached to the left-right axis. It has two link arms arranged in an eight-shape that can be shortened or extended against a built-in spring coil, and one of the front and rear suspension arms has a lower end. A long steel strip with an arcuate cross section and a hook attached to the tip extends horizontally from the side of the opening toward the side of the opening at the lower end of the other hanging arm. It is inserted into the side and hooked onto the annular member at the tip of the band-shaped sling located at a predetermined location, which is then pulled into one of the hanging arms to lock the tip of the band-shaped sling and has a built-in mechanism to release this lock. Then, the base of the pulled-out band-shaped sling is secured to the other suspension arm, and the tip is engaged within the one suspension arm.
It has a built-in mechanism for pulling the removed belt-shaped sling into the other hanging arm and recovering it.

In addition, automatic slings are equipped with belt-like slings.
Nylon slings are used that do not get bent when lifted, and when loading onto a ship, there is a mechanism that copes with the inclination of the ship, a mechanism that smoothly extends long steel strips, and a mechanism that allows the nylon slings to be pulled out without sagging. A collection mechanism is provided as necessary.

[For production]

Since the automatic sling device of the present invention has the above configuration,
The distance between the autosling parts suspended at both ends of the telescoping beam can be freely adjusted from very close to far apart, and the autosling parts are tilted within a predetermined range with respect to the telescoping beam. be able to.

In addition, the distance between the front and rear lifting arms can be adjusted while maintaining the parallel state, and when a belt-shaped sling is passed between these arms to lift a heavy object such as an I-beam, the link arms can be shortened or extended to adjust the distance between the front and rear lifting arms. Since the lower end of the arm approaches or separates, no unreasonable force is applied to the hanging arm. Furthermore, the long steel strip is smoothly extended and does not sag when the strip sling is recovered.

〔Example〕

1 and 2 are a side view and a front view showing an embodiment of the automatic sling apparatus according to the present invention, and reference numeral 1 in the figures represents a fixed beam extending in the left-right direction.

Hanging members 3 to be hooked to crane hooks 2 are attached to the upper ends of the fixed beam 1, and an electric control panel 4 for operating each part of the automatic slinging device is installed in a part of the center.

At the bottom of both sides of the fixed beam l, a moving beam 6 is attached which extends in the same direction as the fixed beat l, is movable along the fixed beam, and is driven by a beam telescoping motor 5, and is configured with a telescoping beam 7. has been done.

A saddle 9 is attached to the lower part of the movable beam 6 of the telescopic beam 7 and is movable in the length direction of the movable beam 6 and is driven to move by a saddle moving motor 8.

A hanging part 13 fixed to the upper end of an opening/closing drive part 12 of an autosling part 11, which will be described later, is rotatably attached to the saddle 9 by a shaft 14 in the front-rear direction.

Therefore, the autosling part 1.1 is adapted to rotate around the shaft 14, and the hanging part tilting lock cylinder 15 provided in the saddle 9 and the hanging part tilting lock cylinder 16 provided in the hanging part 13 The autosling section 11 is locked in a vertical position with respect to the telescopic beam 7, and when this lock is released, it can be tilted freely within a predetermined range about the shaft 14.

- The autosling section 11 is configured as follows. That is, it has a suspension arm 13 at its upper end, a suspension arm opening/closing motor 17 inside, an electromagnetic brake 18 for rapidly stopping the rotation of the suspension arm, and a drive member 19 that is driven downward by the rotation of the motor 17. Opening/closing drive unit 1 provided
2 is suspended from the saddle 9.

One end of the main arms 20, 20, which are opened in a convex shape, is rotatably attached to the upper part of the opening/closing drive section 12 by a shaft 21 in the left and right direction. It is rotatably attached to suspension arms 3.1.51 located front and rear in parallel and facing each other by a left-right axis 22.

At the center of the L main arm 20, one end of two inverted eight-shaped links 23 is rotatably attached to a left-right shaft 24, and the other end is attached to the drive member 19 of the opening/closing drive unit 12.
It is rotatably mounted on a shaft 25 in the left and right direction.

In addition, the main arm of the opening/closing drive unit 12 is attached to two link arms 2 which are opened in a convex shape at the bottom of the mounting position.
One end of 6, 26 is rotatably attached to the hanging arm 31.51 by a left-right axis 27, and the other end is rotatably attached to the hanging arm 31.51 by a left-right axis 28. ．． 51 are held parallel. Therefore, the link arm 26 has the same length as the main arm 20 and is parallel to the main arm 20.

This link arm 26 has a built-in coil spring (not shown), and when a force is applied in the direction of contraction or expansion, the link arm 26 shortens or expands against the biasing force of the fill spring.

However, since it is extremely important to hold the hanging arm 31.51 parallel when no force is applied to the link arm 26, it is important to keep the suspension arm 31.51 parallel when no force is applied. It is preferable that the coil springs in both cases are compressed and the link arms 26 are configured separately so that the length of the link arm 26 is kept constant by the stopper when no force is applied.

Furthermore, the hanging arm 3151 of the auto sling section 11 is
Figures 3(a)(b) and 4(a)(b)(c), respectively.
) The configuration is as shown in .

That is, a geared motor 32 that acts as a sprocket is provided at the two ends of the hanging arm 31, and a geared motor 32 that acts as a sprocket is provided at the bottom of the geared motor 32.
A lower sprocket 33 is provided, and a lower sprocket 34 is provided at the lower part of the hanging arm 31.

An upper roller-shaped portion 35 and a lower roller chain 36 are wound around the geared motor 32 and the upper sprocket 33, and the upper sprocket 33 and the lower sprocket 34, respectively, and are driven to rotate by the geared motor 32.

The upper and lower sprockets 33, 34 are provided with roller-like parts (not shown), and a steel strip 37 having an arc-shaped cross section and a hook 37a at its tip positions the hook 37a at the lower part of the lower sprocket 34, and The roller portion of the sprocket 33 is wound around and the base end 37b is locked to the lower roller chain 36. Further, a freely rotating pinch roller 38 is provided on the roller portion of the lower sprocket 34 to press against this surface and pinch the steel strip.

In addition, a modele cylinder 39 is attached to the lower side wall of the lower sprocket 34, and via a locking rod operating link 4°,
The locking rod 41 is moved forward and t&jn.

A guide roller 43 is provided inside the side of the lower end opening 42 of the hanging arm 31, and an elevation adjuster 44 is provided below the guide roller 43 to support both ends of the extending steel strip 37. A guide 45 is provided between the lower sprocket 34 and the guide roller 43 to guide the steel strip 37 to the guide roller.

A geared motor 52 having a sprocket is provided at the upper end of the hanging arm 51, an upper sprocket 53 is provided at the lower part thereof, and a lower sprocket 54 is provided at the lower part of the hanging arm 51.

The geared motor 52 and the upper sprocket throat 53, the upper sprocket 53 and the lower sprocket 54 have an upper roller-shaped portion 55 and a lower roller chain 56, respectively, and are rotated by the geared motor 52. The upper and lower subrockets are driven to rotate counterclockwise in FIG. 4(a), and freely rotate clockwise.

The upper and lower sprockets 53, 54 are provided with a roller-shaped portion (not shown), and a band-shaped nylon sling 57 with an annular member 57a attached to the tip is attached to the annular member 57a.
is positioned at a predetermined height below the lower sprocket 54 with its opening surface facing the extending direction of the steel strip 37 of the suspension arm 31, and is wound around the roller portion of the upper sprocket 53 so that the base end 57b is It is locked to a lower roller chain 56.

A locking rod 59 that is locked by a stopper 58 attached to the upper side wall of the lower subblock 54 is attached to the base end 57b.

Furthermore, a brake plate 60 is provided on the side of the lower sprocket 54 to clamp the nylon sling 57 with a predetermined pressing force between the brake plate 60 and the roller portion of the lower sprocket 54 .

Further, below the lower sprocket 54, when the hook 37a of the steel strip 37 passes through the annular member 57a and abuts against it, the solenoid 61 is actuated, the push spring 62 pushes down the hook 37a, and the push spring 63 pushes down the annular member 57a. A sensing plate 64 is provided for pushing up. Furthermore, when the nylon sling 57 is being retracted, a limit switch 65 is provided which is activated when the annular member 57a reaches a predetermined position and stops this retraction.

As shown in FIG. 5, the nylon sling has a locking hole 57c at its tip through which the locking rod 41 is inserted. To prevent this, a horseshoe-shaped member 57d is attached, and the annular member 57a is rotatably attached to the horseshoe-shaped member 57d.

Incidentally, reference numeral 71 is a cushion that cushions the impact when the hanging arm 31.51 touches the ground or comes into contact with an object to be lifted.

Next, how to use the autosling configured as above will be explained.

First, the autosling is lifted by a crane, and the distance between the autosling parts 11 is adjusted by moving the moving beam 6 and the saddle 9 according to the length of the object to be lifted. Next, the hanging arm opening/closing motor 17 of the opening/closing drive section 12 is driven to move the driving member 19 up and down, and the interval between the hanging arms 31.51 is adjusted to the width of the object to be lifted.

The auto sling, whose length and width have been adjusted in this way, is placed so that the object to be lifted, which is placed with a space between it and the floor using sleepers etc., is located between the hanging arms 31 and 51. descend to

The geared motor 32 of the hanging arm 31 that has descended to the ground is driven. This drive rotates the upper and lower sprockets 33 and 34, and the steel strip 37 extends in the direction of the hanging arm 51.

In this case, the base end 3 of the steel strip 37 is attached to the lower roller chain 36.
7b is locked, it moves together with the lower roller chain 36, but at the same time it is held by the lower sprocket 34 and the pinch roller 38 and sent out, so the base end 3
7b and the lower sub-block 34, but passes through the guide 45 and extends from between the guide roller 43 and the elevation angle adjuster 44. The extended steel strip 37 is connected to the annular member 5 with the tip hook 37a at a fixed position on the hanging arm 51.
7a. At this time, since the steel strip 37 has an arcuate cross section, it will not bend, but the hanging arm 31
．． The vertical position of the tip hook 37a varies depending on the interval 51. Therefore, the elevation angle of the guide roller 43 portion is changed by the elevation angle adjuster 44 so that the vertical position of the hook 37a that has reached the hanging arm 51 is adjusted to be constant.

The hook 37a inserted into the annular member 57a is connected to the sensing plate 6.
4, the solenoid 61 is activated, the push spring 62 presses down the steel strip 37, and the push spring 6
3 pushes up the annular member 57a, and the hook 37a
is hooked on the annular member 57a.

Next, the geared motor 32 is driven, and the nylon j blowfish 5
The flap is pulled out from the hanging arm 51 and drawn into the hanging arm 31. At this time, the upper and lower sprockets 53 and 54 freely rotate clockwise and are held down by the brake plate 60, so they are pulled out eight times without slack.

” - nylon sling 5 retracted into dosing arm 31
7 is locked in the two holes 57e of the locking 11 (stops at a position where the locking rod 41 can be inserted), the mode cylinder cylinder 39 is driven, and the locking rod 41 is inserted into the locking IL hole 57c.At the same time, the geared motor 32 is reversed. direction, and the annular member 57a is removed from the hook 37a.Next, if the floor surface on which the product is moved or placed is inclined, the autosling part lifting tilting lock/ring 15 , 16 are unlocked, and the autosling part 11 can be tilted freely.

When the autosling is raised E in this state, the nylon sling 57 is further pulled out from the hanging arm 51.
Stop 1 - When the rod 59 is caught on the stopper 58, the proximal end 5
Since 7b is locked, it will no longer be possible to pull out the unit.

At this point, in order to enclose the object to be lifted by the nylon sling 57, the distance between the hanging arms 31.51 is narrowed. When this is lifted, a force is applied to the lower end of the hanging arm 31°51 in the direction that it opens, or if the non-firm 26 is made to extend in the opening direction against the coil spring, the lower end opens and the lifting arm 31°51 is lifted. No excessive force is applied to the arm 31.51.

In addition, if it is not necessary to wrap the finished product with the nylon sling 57, hang it up as it is when the nylon sling is no longer pulled out. In this case, a force is applied in the direction in which the lower end of the hanging arm 31.51 approaches, but if a link arm 26 that shortens against the coil spring is used, the lower end approaches the hanging arm 31.51 in the same way. No excessive force is applied.

In this way, it is desirable that the arrangement of the built-in fill spring in the link arm 26 of the hanging arm 31.51 be changed depending on whether the lower end of the hanging arm 31.51 is opened or closed by lifting.

In this case, it is possible to use compression and expansion of the same coil spring, but when passing the steel strip 37, someone must hold the suspension arm 3 ratio 51 in a completely parallel state, so it is necessary to use a different coil spring. The steel strip 37 can be reliably spanned by the moth in this structure.

Next, the finished product is lowered into a predetermined position, but if the floor is tilted, such as on a ship, the auto sling part 11 is unlocked, so the height of the two crane hooks 2 is adjusted. By doing so, you can respond to

Lower the finished product into place and attach the nylon sling 5.
After the tension of 7 is released, the mold ring 39 is operated to pull out the locking rod 41 from the locking hole 57c.

Next, the geared motor 52 is driven to move the upper and lower subrocket 7.
53 and 54 to draw the nylon sling 57 into the suspension arm 51. In this case as well, the nylon sling 57 does not slacken because it is pressed by the brake plate 60.

When the nylon sling 57 is retracted and the annular member 57a comes to a predetermined position, the limit switch 65 is activated and the retraction of the nylon sling 57 is stopped.

By the above operation, a large number of long insects can be easily moved.

Note that each of the above operations may be performed manually, but may be performed automatically as appropriate by controlling a known sequence or the like.

〔Effect of the invention〕

As described above, the auto sling according to the present invention allows the interval between the auto sling parts and the interval between the hanging arms of the auto sling part to be freely selected, so that a large number of long Ltffi
It can handle various types of products that have been piled up and down, and the tip of the hanging arm moves away from or approaches itself depending on the weight of the finished product, so no excessive force is applied to the hanging arm. .

In addition, since nylon slings are used, unlike wire slings, they do not get bent when lifted, and since the steel strips are stretched out while being held by pinch rollers, they are not bent by the feeding force and are smooth. was extended to
Nylon slings have many advantages, such as being held down by the brake plate and pulled out and retracted, so they do not sag, are easy to operate, and do not require skill, and are useful for moving long items, shipping, etc. is extremely large.

[Brief explanation of the drawing]

1 and 2 are overall views showing one embodiment of an autoswing according to the present invention, and FIG. 1 is a side view, and FIG.
The figures are the row arrow view of Figure 1, and Figure 3 (a,)'(b).
3(a) is a diagram showing an embodiment of one of the hanging arms, and FIG.
) is a diagram showing the internal structure, Figure 3(b) is an MM-line blind view of Figure 3(a), and Figures 1(a), (b), and (c) are one of the other hanging arms. 4(a) is a diagram showing the internal structure, FIG. 4(b) is a view taken along the line ■-■ in FIG. 14(a), and FIG. 4(c) is a diagram showing the push-up FIG. 5, which shows the spring, is a plan view of the tip of the nylon sling. l... Fixed beam, 2... Crane frame, 3
...Hanging member, 4...Electric control panel, 5.
...Beam extension motor, 6...Moving beam, 7...Telescopic beam, 8...Saddle movement motor, 9...Saddle, 11... ...Auto sling part, 12... Opening/closing drive part, 13...
...Exhibition, 14...Axis, 15.16...
・Exhibition tilting opening, Kushilinta, 17... Hanging arm opening/closing motor, 18...'ri magnetic bush brake 9
....driving member, 20...main arm, 21.22...shaft, 23...link, 24.25...shaft, 26...Link arm, 27.28...Axis, 31...
Hanging arm, 32...Geared motor, 33...
...Upper sprocket, 34...Lower sprocket, 35...Upper roller chain, 36...Lower roller chain, 37... Steel strip, 37a ...Hook, 37b...Base end, 38...Pinch roller, 39...Modle cylinder, 40...Latching order Link, 41... Section 11
-Salary, 42...Opening, 43...Guide roller, 44...Elevation angle adjuster, 45...
・Guide, 51 ... Hanging arm, 52 ... Geared motor, 53 "Lower sprocket, 5.1 ... Lower sprocket, 55 ..." - Roller chain, 56 ... Lower roller chain, 57...Nylon sling, 57a...
Annular member, 57b... Base end portion, 57c...
- Locking hole, 57d... Horseshoe cedar member, 58...
Stopper 59...Stop bar, 60...Brake plate, 61...Solenoid, 62...Pushing spring, 63...Pushing spring, 64...Sensing Board, 65
...Limit switch, 71...Kunoshijin. Director Nippon Steel Corporation Suzuki Giken Kogyo Co., Ltd.

Claims (5)

[Claims] (1) A fixed beam (1) extending in the left-right direction and moving beams (6) attached to the lower parts of both sides of this fixed beam and moved in the left-right direction by a drive mechanism (5).
a telescoping beam (7) consisting of a telescopic beam (7), a saddle (9) attached to the lower part of the moving beam and driven along the moving beam by a drive mechanism (8), and an upper end suspended from these saddles. An automatic sling device having an auto sling part (11), wherein the auto sling part has an opening/closing drive part (11) having a hanging arm opening/closing mechanism built therein.
2), and hanging arms (31), (51) whose one end is rotatably attached to the opening/closing drive unit by a left-right axis, and the other end is located facing the front and rear of the opening/closing drive unit.
two V-shaped main arms (20) which are rotatably mounted on a left-right shaft; an inverted V-shaped link (23) whose end is rotatably attached to a drive member (19) provided in the opening/closing drive unit and driven up and down by a left-right axis;
One end is rotatably mounted below the main arm mounting position of the opening/closing drive section with a left and right axis, and the other end holds the front and rear suspension arms in parallel, and is attached to the front and rear suspension arms with a left and right axis. It has two link arms (26) which are rotatably attached and arranged in a V-shape that can be shortened or extended against a built-in spring coil, and one of the front and rear suspension arms (26) is provided. 31), a long steel strip (37) with an arc-shaped cross section and a hook (37a) attached to the tip is horizontally moved from the side of the lower end opening to the side of the lower end opening of the other hanging arm. It is extended and inserted into the side of the lower end opening of the other hanging arm (51), and hooked onto the tip annular member (57a) of the band-shaped sling located at a predetermined location, and then inserted into the one hanging arm (31). It has a built-in mechanism that locks and releases the tip of the retractable band sling, and locks the base of the pulled-out band sling in the other suspension arm, and locks the tip of the pulled-out band sling in the other suspension arm. An auto sling characterized by having a built-in mechanism for pulling and recovering the belt-shaped sling that has been released from the lock into the other hanging arm. (2) The autosling part suspended from the saddle is rotatably suspended by the longitudinal axis (14), and when the autosling part is locked in a vertical position with respect to the telescopic beam and the lock is released. The automatic sling device according to claim 1, wherein the automatic sling portion has a locking mechanism that allows rotation about the front and rear shafts. (3) A feeding mechanism for the long steel strip built into one of the hanging arms connects the proximal end of the long steel strip to an endless roller chain wound around upper and lower sprockets having roller portions that receive the long steel strip. The roller chain is driven to send out the long steel strip, and a freely rotating pinch roller is provided between the roller portion of the lower sprocket and the roller portion of the lower sprocket to press and clamp the long steel strip. The automatic sling device described in (1) or (2). (4) The strip sling recovery mechanism built into the other hanging arm is provided with a roller section that receives the strip sling, rotates freely in the direction of pulling out the strip sling, and is rotationally driven in the direction of recovering the strip sling. Claim (1), further comprising a brake leaf spring that locks the proximal end of the belt-like sling to a roller chain wound around the upper and lower sprockets and clamps the belt-like sling between the roller chain of the lower sprocket. (2
) or the automatic sling device described in (3). (5) The belt-shaped sling is a belt-shaped nylon sling made of woven nylon strings, and the annular member is attached to a horseshoe-shaped member provided to prevent deformation of the locking hole at the tip of the belt-shaped nylon sling. The automatic slinging device described in 1), (2), (3) or (4).