JP2525623Y2 - Suspension device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a suspension device used when a heavy object such as a rolling roll is suspended or transported by a crane or the like.

[Conventional technology]

Conventionally, overhead roll cranes are used to transport heavy loads such as rolls used for rolling steel materials. Both ends of the rolls are suspended by wire ropes suspended from the hooks of the crane, or In the case of a sleeve roll formed in a hollow shape, a means for suspending a wire rope through a hollow hole is employed. When performing the above work, in addition to the crane operator,
It required at least one slinging worker and one worker to signal the crane operator. However, in recent years, various proposals have been made for crane transport-related devices and instruments, etc., in order to save labor and improve safety of crane lowering work.

For example, Japanese Utility Model Application Laid-Open No. 56-124678 discloses a sliding fitting which is vertically movably fitted to a guide rod which hangs from a hanging fitting.
There is described a proposal in which a wire is provided at the tip of a plurality of arm members having one end pivotally connected. According to the above proposal, the hanging wire is distributed to a certain width, so that there is no need for a worker to distribute the hanging cable, and the weight of the device can be reduced because the wire itself is loaded.
Furthermore, it is said that there is an effect that the storage space is small.

However, according to the above proposal, it is extremely difficult to suspend rolling rolls having different axial lengths, especially when suspending rolling rolls shorter than the preset spacing of the suspending wires. There is a problem that a worker is required.

As other means that do not use wires, there are many known suspension devices provided with hooks that allow the suspension length of the suspension beam to be adjusted. However, this type of device has a complicated structure and equipment costs. However, there is a disadvantage that the weight and the shape of the entire hanging device are large.

As a proposal to solve the above problems, Japanese Utility Model Application Laid-Open No. 62-186880
In the publication, there is one under the base having a hook engaging portion.
A pair of wire support arms are provided rotatably, and an air pressure operated piston cylinder rotatably supported between the intermediate portion of the wire support arm and the base is provided from the lower end of the wire support arm. There is a proposal that the hanging width of the hanging wire is adjustable. With this proposal, it is possible to adjust the wire suspension ring to an arbitrary width according to the length of the suspended object, and it is possible to remotely control the crane from the operator's cab. It is said to be effective.

[Problems to be solved by the invention]

However, in the above-mentioned Japanese Utility Model Application Laid-Open No. 62-186880, it is necessary to provide an air-pressure operated piston cylinder for driving the wire support arm. Naturally, the compressed air supply unit must be mounted on the crane body. No. In addition, the air hose that constitutes the compressed air supply
It must be arranged so that it can follow the vertical movement of the crane hook. Therefore, not only must the structure be inevitably complicated, but also in cases where high-temperature rolls are suspended, for example, in the heat treatment section of a roll roll manufacturing plant, flammable materials, such as air hoses and piston cylinders, must be used. However, there is a problem that the core steel of the wire may be burned out, and the safety and reliability are low.

The present invention solves the above-mentioned problems in the prior art, has a simple structure, and allows a suspension distance to be remotely adjusted according to the length of a suspended object, thereby providing a highly safe and reliable suspension. It is an object to provide a suspension device.

[Means for solving the problem]

In order to achieve the above object, in the present invention, there is provided a suspender provided with an engaging portion with a hook such as a crane, and a suspension which is suspended below the suspender and includes a compression coil spring, a damper and a shock absorber. A movable fitting having at least one kind of cushioning member mounted thereon, and a locking member having an upper end pivotally supported by the hanging fitting and formed at the lower end so as to be detachably engaged with a suspended object. A pair of cooperating links rotatably supported by the left and right arms, one end of which is an intermediate portion of the arm and the other end of the arm and the movable bracket, respectively, and a combination of a motor block and a chain or a wire. A technical means is adopted in which the distance between the locking members can be adjusted by moving the movable metal fitting up and down by a driving means comprising:

In the present invention, for example, a compression coil spring, a damper, a shock absorber, or the like can be used as a buffer member to be mounted on the movable fitting. Further, it is preferable that the vertical movement drive means of the movable bracket is a combination of a motor block and a drive medium such as a chain or a wire.

[Action]

According to the above configuration, when the arm is opened, the arm can be opened by the cooperative link if the movable bracket is moved upward by the driving means, and when the arm is closed, the driving means is reversed. If the arm is operated in the direction, the arm can be closed by the weight of the movable bracket. Therefore, the distance between the locking members, that is, the hanging distance can be adjusted by remote control according to the length of the suspended object.

〔Example〕

FIG. 1 is a front view, partially omitted, showing an embodiment of the present invention.
FIG. 2 is a view in the direction of the arrow A in FIG. In both figures, reference numeral 1 denotes a hanging bracket, which is provided with a locking portion 2 at the upper portion for engaging with a hook (not shown) of a crane or the like. Next, reference numeral 3 denotes a movable bracket, which is suspended via a motor block 4 and a chain 5 suspended below the suspension bracket 1. The movable fitting 3 is composed of an upper support member 31, a lower support member 32, and a rod 33 that penetrates each of the upper support member 31 and the lower support member 32 and connects them. The rod 33 is connected to the chain 5. Reference numeral 6 denotes a compression coil spring, and reference numeral 7 denotes a damper, which are interposed between the upper support member 31 and the lower support member 32, respectively. An arm 8 is rotatably supported at the upper end of the arm so as to be rotatable with the hanging fitting 1 and has a lower end provided with a locking member 9 having a hook-shaped or L-shaped front surface. Note that a pair of left and right arms 8 is provided below the hanging bracket 1. Reference numeral 10 denotes a cooperating link, one end of which is an intermediate portion of the arm 8 and the other end of which is an upper support member 31 constituting the movable fitting 3.
Are provided so as to be rotatably supported.

With the above configuration, the sleeve 11 formed into a hollow cylindrical shape
(Usually placed with the axis horizontal) will be described. First, after being stopped just above the sleeve 11 in the state shown in FIG. 1 by the hook (not shown) of the crane via the locking portion 2 of the hanging fitting 1, the motor block 4 is operated to move the movable fitting 3 Lower by its own weight. The operation of the motor block 4 is performed by a crane operator (in a crane operation room or on the ground). The lowering of the movable bracket 3 causes the pair of arms 8 to move in the closing direction via the cooperative link 10. In this case, since the arm 8 and the cooperating link 10 are configured to form a substantially rhombus, the angle between the arm 8 and the chain 5 is the same on the left and right, and the locking member 9 provided at the lower end of the arm 8 is provided. Of the left and right are the same. When the closing operation of the pair of arms 8 is continued, the locking member 9 enters the hollow hole 11a of the sleeve 11, so that
If the lowering of the movable metal fitting 3 is stopped and the hook of the crane is wound up, the sleeve 11 can be suspended. At this time, the movable bracket 3 is connected via the arm 8 and the cooperative link 10.
In the initial stage of suspension and during suspension, a compressive force acts. This compressive force is absorbed and relaxed by the compression coil spring 6 and / or the damper 7, and most of the weight of the sleeve 11 is supported by the tensile stress of the arm 8. You. After the sleeve 11 has been transported to a predetermined place, the entire device is lowered and the movable bracket 3 is raised via the chain 5 by the operation of the motor block 4, whereby the arm 8 operates in the opening direction and the locking member 9 comes off the hollow hole 11a of the sleeve 11.

FIG. 3 is a side view of a main part of an arm according to another embodiment of the present invention, and corresponds to the view in the direction of arrow B in FIG. In FIG. 3, the arm 8 is formed by opposing two strip steel plates, and the interval near the lower end is expanded to fix the stay 12. Next, the locking member 9 is composed of a pair of U-shaped members 91 rotatably supported at the lower end of the arm 8 and a wire rope 92 suspended between the U-shaped members 91, 91. The length of the stay 12 provided at the lower end of the arm 8 and the length of the wire rope 92 are appropriately selected in consideration of the dimensions of the locking portion of the roll 13 to be suspended.

With the above configuration, if the arm 8 is closed in the axial direction of the rolling roll 13 just above the rolling roll 13 as in the above embodiment, the wire rope 92 is locked by the locking portion of the rolling roll 13 (normally, At this position, the operation of the arm 8 in the closing direction is stopped at that position, and the hook (not shown) of the crane may be wound up. After the roll 13 is transported to a predetermined place and the rolling roll 13 is placed thereon, the wire rope 92 can be removed from the rolling roll by raising the movable bracket 3 through the motor block 4 as in the previous embodiment. .

In this embodiment, the example in which the suspended object is a rolling roll and a sleeve has been described. However, the present invention is not limited thereto, and may have another shape. In addition, as a driving means of the movable fitting, a known means other than the motor block may be used, and a rope or other medium may be used instead of the chain. Further, as the shock-absorbing member to be attached to the movable metal fitting, one or two or more members other than the compression coil spring and the damper can be used.

[Effect of the invention]

Since the present invention has the configuration and operation as described above, the following effects can be obtained.

(1) The suspension interval can be arbitrarily adjusted according to the length of the suspended object.

(2) Since the crane's cab or the ground can be remotely controlled, a slinging worker is not required.

(3) The structure is simple, including means for vertically moving the movable fitting.

(4) For high heat suspended objects such as heat treatment departments,
Safety and reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of an essential part showing an embodiment of the present invention, FIG. 2 is a view of an essential part in the direction A in FIG. 1, and FIG. It is a part side view. 1: Hanging bracket, 3: Movable bracket, 6: Compression coil spring, 7: Damper, 8: Arm, 9: Locking member.

Claims (1)

(57) [Scope of request for utility model registration] A hanging member provided with an engaging portion with a hook of a crane and a buffer member suspended below the hanging member and formed of at least one of a compression coil spring, a damper and a shock absorber. A pair of left and right arms provided with a movable metal fitting, an upper end pivotally supported by the hanging metal so as to be rotatable, and a lower end provided with a locking member formed to be detachable from the suspended object; One end is provided with an intermediate portion of an arm and the other end is provided with a pair of cooperating links rotatably supported on the movable bracket and the movable bracket, respectively, and the movable bracket is driven by a driving means comprising a combination of a motor block and a chain or a wire. A suspending device characterized in that the distance between the locking members can be adjusted by vertically moving.