KR20030024091A - Double hook safety clamping machine - Google Patents

Abstract

PURPOSE: A double hook clamping device for a heavy transport is provided to achieve improved safety and work efficiency by performing clamping and separation of jig and hook through the mechanical operation rather than the manual operation of a worker. CONSTITUTION: A double hook clamping device comprises a pair of link plates(10) which operate by a hinge so as to be coupled to or separated from a crane hook(3). The link plates are open/shut by the operation of a cylinder(20) and engaged with each other at a gear part(12) in such a manner that an open/shut angle is maintained constant. An open sensor(14) and a shut sensor(13) are arranged to turn on/off the operation of the cylinder by sensing the open/shut angle in accordance with the contact with the link plate. A hook seat(15) is equipped with a mount sensor(16) for sensing the mounting of the crane hook and applying an operation signal to the cylinder.

Description

Double hook fastening device for heavy goods transportation {DOUBLE HOOK SAFETY CLAMPING MACHINE}

The present invention relates to a heavy-duty double-ring mount, and more particularly, the weight of the various types in the intermediate fastening device for the operator to fix the weight to the double hook of the crane using a jig (Tong) without manual labor It relates to a double hook mounter that can be easily carried through the movement.

In general, in hot and cold rolling equipment, a rolling jig that determines the thickness size and both housings supporting the rolls are assembled, and a conveying jig used for transporting, repairing, or replacing the weight equipment or transferring a product A device for fixing a slab form in a state to a hook using a conveying device, and a wire connected to the fixing jig 1 as shown in FIG. 1 when carrying a heavy material by a jig or a tongue. The rope 2 or the manually operated link plate is directly hanged on the crane hook 3 to carry the heavy load 4 coupled to the fixing jig 1.

In the figure, reference numeral 5 denotes a ring portion to which the wire rope 2 is connected.

However, in the related art, frequent safety accidents occur due to the need for one or two workers to hang the crane hook 3 by hand or by two workers, resulting in a decrease in work efficiency. .

The present invention has been proposed to improve the above-mentioned conventional problems, so that the coupling and separation of the fixing jig and hook for heavy weight movement can be made by mechanical operation without the manual work of the operator to ensure the safety of work and improve the working efficiency The purpose is to.

1 is a schematic configuration diagram of a conveying device for carrying a heavy weight according to the prior art.

Figure 2 is a state in which the crane hook is lowered according to the opening operation of the double ring fastening device according to the present invention.

Figure 3 as showing the state during the closing operation of the present invention the double ring fastening device,

3A is a front view.

3B is a side view.

Figure 4 is a schematic configuration diagram of a conveying device using a double ring fastening device of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: fixing jig 3: crane hook

4: weight 10: link plate

11 link pin 12 gear part

13: closing detection sensor 14: opening detection sensor

15: hook seat portion 16: seating detection sensor

20: oil-pneumatic cylinder 21: converter unit

22: solenoid valve 23: speed controller

The above object is provided in the upper part of a fixed jig for carrying a heavy load, and a double ring fastening device comprising a pair of link plates hinged to be coupled to and detached from a crane hook, wherein the pair of link plates are cylinder operated. Is opened and closed by the operation, the gear is made of a mutual gear at the lower end to maintain the same opening and closing angle between each other; An opening sensor and a closing sensor are respectively installed to detect an opening / closing angle according to contact with the link plate to turn on / off the operation of the cylinder; The hook seat portion on which the crane hook is lowered is mounted, and a seat detection sensor is provided to detect whether the crane hook is seated and to apply an operation signal to the cylinder. The technical configuration can be achieved.

Hereinafter, a specific embodiment of the double ring fastening device of the present invention will be described with reference to FIGS. 2 to 4.

First, the overall configuration is as follows.

As shown, a pair of link plates 10 are rotatably installed on the upper side of the fixing jig 1 with the link pin 11 as an axis, and the pair of link plates 10 are hydraulic or pneumatic cylinders ( 20) is connected to open and close operation.

Particularly, since the link plate 10 forms a gear part 12 in which gear teeth are formed to face each other at the lower end, the link plate 10 can maintain the same opening and closing angle without shifting to one side during opening and closing operation, and the hydraulic and pneumatic cylinders ( 20) is installed inside the link plate 10 to enable a stable operation.

In addition, the closing detection sensor 13 and the opening for transmitting an operation stop signal to the oil / pneumatic cylinder 20 by recognizing the operation angle during the closing and opening operation of the link plate 10 according to the operation of the oil / pneumatic cylinder 20. The detection sensors 14 are installed at respective points, and when the crane hook 3 is seated on the hook seat 15 on which the crane hook 3 is to be seated, the link plate 10 is closed. The seating detection sensor 16 is applied to apply a signal so that it can

On the other hand, the cylinder operating unit for operating the hydraulic cylinder, pneumatic cylinder 20, by supplying a fluid during the operation of the cylinder converter section 21 to prevent the air jumping phenomenon due to the switching operation, and to block the flow as an electrical signal and A solenoid valve 22 for converting together and a speed controller 23 for maintaining a constant working speed of the cylinder are provided.

In the figure, reference numeral 17 denotes a frame that is an intermediate connection portion between the link plate 10 and the fixing jig 1.

Looking at the operating state of the fastening device of the present invention having such a configuration as follows.

When the air or fluid is supplied to the air link of the fastening device of the present invention, the hydraulic and pneumatic cylinders 20 are operated so that link plates 10 on both sides connected to one side of the cylinder and the cylinder rod portion, respectively, are link pins ( 11) is gradually opened to the axis, this operation is continued to the angle to be detected by the open sensor (14). At this time, it can be seen that the pair of link plates 10 are always engaged with each other by being engaged with each other in the lower gear 12 being rotated together to maintain the same rotation angle.

Subsequently, when the link plate 10 continues to be opened as far as the opening detection sensor 14 is installed, the opening detection sensor 14 sends a signal to shut off the air or fluid supply to the cylinder operating part. The operation of the pneumatic cylinder 20 is stopped, and in this state, the operator operates the upper overhead crane to slowly lower the crane hook 3.

That is, the crane hook 3, which is finally lowered, is seated up to the hook seat part 15 as shown in FIG. 2, wherein the seating of the crane hook 3 is detected by the seat detection sensor 16. As indicated by the lighting, the operator controls the overhead crane so that the crane hook 3 no longer descends.

Then, after the hydraulic and pneumatic cylinder 20 is operated to pull the link plate 10 as shown in Figure 3, the closing operation is made, this operation is detected by the closing sensor 13 As the losing position is achieved, ascending preparation is completed. On the other hand, in Figure 3 it turns out that the crane hook (3) is shown in an elevated state.

When the crane hook 3 is lifted by the operator's operation in the state that the closing operation is completed, as shown in FIGS. 3 and 4, the fixed jig 1 on which the heavy material 4 is mounted is lifted and By being moved, it is possible to more easily carry out the movement of the weight (4).

In particular, as a feature of the present invention it can be seen that the operation state is detected by the sensor installed in each part to improve the work efficiency, and the opening and closing operation of the link plate 10 paired with it It can be seen that by the operation of the gear unit 12 can be rotated to form the same flow angle with each other to achieve a stable operation.

In addition, since the hydraulic and pneumatic cylinder 20 is positioned inside the central portion, it is possible to prevent a torsion in one direction that may occur during opening and closing of the link plate 10.

In the foregoing description, specific embodiments of the present invention have been described and illustrated, but it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

However, such modified applications should not be individually understood from the technical spirit or the prospect of the present invention, and other modified embodiments should fall within the appended claims of the present invention.

As described above, the present invention provides an effect of improving the work safety by allowing the opening and closing operation of the link plate to be more stably performed in the simple movement of the heavy object using a pair of dual link plates. .

In addition, it can be seen that the operation of the link plate can be detected by a plurality of sensors to further improve the operating efficiency of the fastening device.

Claims (3)

Installed on top of the fixed jig (1) to be transported in the state in which the heavy material (4) is mounted, and includes two link plates (10) hinged to be coupled and detached to the crane hook (3) In double ring fasteners: The pair of link plates 10 are opened and closed by the operation of the cylinder 20, but are engaged with each other in the lower gear part 12 so as to maintain the same opening and closing angle between the pairs; An opening detecting sensor 14 and a closing detecting sensor 13 are respectively installed to detect an opening / closing angle according to contact with the link plate 10 to turn on / off the operation of the cylinder 20; The hook seat part 15 on which the lowered crane hook 3 is seated is provided with a seating detection sensor 16 for sensing whether the crane hook 3 is seated and applying an operation signal to the cylinder 20; Double ring fastening device for transporting heavy materials, characterized in that. The method according to claim 1, The cylinder 20 is a double-ring fastening device for carrying a heavy weight, characterized in that provided in the center of the pair of link plate 10 inside. The method according to claim 1, The cylinder operation unit for operating the cylinder 20, the converter unit for preventing the air jumping phenomenon during the cylinder operation; Solenoid valve 22 for blocking and converting flow as an electrical signal; Speed controller 23 to maintain a constant cylinder operating speed; Double-ring fastening device for heavy goods carrying, characterized in that the provided.