JP6259667B2 - Emergency stop device for heavy material handling equipment - Google Patents

Description

  The present invention relates to an emergency stop device for a heavy material transport device.

  In general, when loading and unloading heavy objects such as unloaders and container cranes on a ship and loading and unloading them on the quay of the destination port, the weight is reduced by winding the wires with multiple winches that make up the heavy-duty conveying device. It is performed to move objects in a horizontal manner.

  FIG. 6 shows an example of a conventional heavy-duty conveying device, where 1 is a quay of a harbor, 2 is a ship berthing, 3 is a carriage loaded on the ship 2, and 4 is placed on the carriage 3. A heavy load such as an unloader or a container crane, a plurality of winches A and B (two in the example in the figure) are arranged on the quay 1 side with a required interval in the longitudinal direction of the ship 2 berthing. Wires 5A and 5B fed out from A and B are hung around sheaves 6A and 6B fixedly arranged on the quay wall 1 and sheaves 7A and 7B attached to one side of the carriage 3, and the end portions thereof Is fixed to a required position on the quay 1 and a plurality of (two in the illustrated example) brake winches C and D are arranged on the ship 2 side at a required interval in the longitudinal direction of the ship 2, Wires 5C and 5D fed from brake winches C and D Fixedly positioned sheave 6C on the ship 2, by turning over the 6D, is fixed to the end portion to a predetermined position of the carriage 3.

  The winches A and B are driven by drive motors 8A and 8B, respectively, and the brake winches C and D are driven by drive motors 8C and 8D, respectively.

  When the winches A and B are driven by the drive motors 8A and 8B and the wires 5A and 5B are wound, the brake winches C and D are driven by the drive motors 8C and 8D, and the wires 5C and 5D are extended. A cart 3 on which a heavy object 4 is placed is pulled horizontally from above the ship 2 toward the quay 1 side.

  Incidentally, the brake winch C, D that feeds out the wires 5C, 5D, the ends of which are connected to the cart 3, has the cart 3 on which the heavy load 4 is placed by the swing or wind gust caused by the waves of the ship 2, and the wire 5A. , 5B is provided as a backup for preventing movement in the direction of loosening.

  In addition, although a roller crawler (not shown) is attached to a plurality of required locations on the lower surface of the carriage 3, a general technical level related to a heavy material transport device using the carriage to which the roller crawler is attached is shown. As an example, there is Patent Literature 1 as an example.

JP-A-8-58934

  However, in the conventional heavy goods transporting device, when moving the carriage 3 on which the heavy goods 4 are placed, the wires 5A, 5B, 5C, 5D are broken or the winches A, B and the brake winch C are caused by a power failure. , D stops, and when the carriage 3 becomes uncontrollable, it is inevitable that the carriage 3 will run away if the running surface of the carriage 3 is inclined.

  Since the carriage 3 is not particularly provided with a stopping means at the time of runaway, when the carriage 3 hits another structure and stops, the collision load becomes large and the heavy article 4 may collapse. .

  The present invention has been made in view of the above-described conventional problems, and does not use electricity with a simple configuration, can reliably avoid the escape of the carriage, and can prevent the heavy article from collapsing. An emergency stop device is to be provided.

The present invention is an emergency stop device for a heavy goods transporting device that moves heavy goods loaded on a carriage by winding a wire with a plurality of winches,
A stopper arranged to be lifted on the front side in the traveling direction of the carriage,
A stopper switching support mechanism for switching between a position for holding the stopper in a lifted state so as to travel with the carriage and a position for dropping the stopper onto the traveling path so that the carriage rides upon an emergency stop ;
The stopper switching support mechanism is
A plurality of support members which are erected so as to protrude to the front side in the traveling direction of the carriage and are arranged in a width direction perpendicular to the traveling direction of the carriage;
A horizontal wire disposed so as to span between the support members;
A lifting wire that extends downward from the horizontal wire and lifts the stopper;
One end of the horizontal wire is connected, a position for applying tension to the horizontal wire to hold the stopper pulled up via the lifting wire, and loosening the horizontal wire to drop the stopper onto the travel path A tensioning / releasing tool that can be switched between
It is concerning the emergency stop apparatus of the heavy-duty conveyance apparatus characterized by comprising.

In the emergency stop device of the heavy material transport device, the stopper is
A wedge-shaped portion formed with an inclined surface that is inclined upward in the traveling direction of the carriage so that the carriage rides;
It is preferable that the front end of the wedge-shaped portion is provided with a convex portion projecting so that the front end portion in the traveling direction of the carriage abuts.

The tension applying / releasing tool is
A support column erected on the carriage;
A swing frame pivotably attached to the support column, one end of the horizontal wire connected to the upper end, and a fitting hole formed in the lower end;
A holding bracket attached so as to protrude from the lower part of the column and having a holding hole drilled at a required location;
A lock pin that is fitted into the holding hole of the holding bracket and the fitting hole of the swinging frame so as to hold the swinging frame in an inclined position and apply tension to the horizontal wire, and is punched out during an emergency stop. It is preferable.

  In the emergency stop device of the heavy goods transporting device, it is preferable that a guide plate disposed so as to sandwich both width ends of the stopper is attached to a front end portion in the traveling direction of the carriage.

  According to the emergency stop device for a heavy-duty carrying device of the present invention, it is possible to reliably avoid the escape of the cart without using electricity with a simple configuration, and to have an excellent effect of preventing the collapse of the heavy load. .

It is a schematic perspective view which shows the Example of the emergency stop apparatus of the heavy article conveyance apparatus of this invention. It is a side view which shows the Example of the emergency stop apparatus of the heavy article conveyance apparatus of this invention. It is a figure which shows the stopper in the Example of the emergency stop apparatus of the heavy article conveyance apparatus of this invention, Comprising: (a) is a side view, (b) is a front view, (c) is a top view. It is a figure which shows the guide plate in the Example of the emergency stop apparatus of the heavy article conveyance apparatus of this invention, Comprising: (a) is a side view, (b) is a top view. It is a figure which shows the stopper switching support mechanism in the Example of the emergency stop apparatus of the heavy-duty conveyance apparatus of this invention, (a) is a side view, (b) is a rear view, (c) is a top view. It is a whole schematic block diagram which shows an example of the conventional heavy goods conveyance apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 5 show an embodiment of an emergency stop device for a heavy material transport device according to the present invention. In the figure, the same reference numerals as those in FIG. Although it is the same as the conventional one shown in FIG. 6, the feature of this embodiment is that, as shown in FIGS. 1 to 5, a stopper 9 that is lifted and arranged on the front side in the traveling direction of the carriage 3 is provided. A stopper switching support mechanism 10 is provided for switching the stopper 9 to a position where the stopper 9 is lifted so as to travel with the carriage 3 and to a position where the stopper 9 is dropped onto the traveling path so that the carriage 3 rides upon the emergency stop. .

  As shown in FIGS. 2 and 3 (a) to 3 (c), the stopper 9 has a wedge-shaped portion formed with an inclined surface 9a that is inclined upward in the traveling direction of the carriage 3 so that the carriage 3 rides on it. 9b, and has a configuration in which a convex portion 9c is projected from the front end side of the wedge-shaped portion 9b so that the front end portion in the traveling direction of the carriage 3 abuts. A rectangular reinforcing bottom plate 9d and a triangular gusset 9e are attached to the front end face of the convex portion 9c. Further, a lifting bracket 9f for connecting a lifting wire 13 to be described later is attached to both width end portions in the intermediate position in the longitudinal direction of the wedge-shaped portion 9b, and the lifting wire 13 is also connected to the upper surface of the convex portion 9c. A lifting bracket 9g is attached.

  As shown in FIGS. 1 and 2, the stopper switching support mechanism 10 is erected so as to project a plurality of support members 11 in the width direction perpendicular to the traveling direction of the carriage 3 to the front side in the traveling direction of the carriage 3. The horizontal wire 12 is disposed so as to be spanned between the support members 11, the suspension wire 13 is extended downward from the horizontal wire 12, and is connected to the suspension brackets 9 f and 9 g, so that the stopper 9 is connected. A position where the horizontal wire 12 is lifted and tension is applied to the horizontal wire 12 to hold the stopper 9 in a state where the stopper 9 is pulled up via the lifting wire 13, and the horizontal wire 12 is loosened to stop the stopper 9. The tension applying / releasing tool 14 that can be switched to the position where it is dropped on the travel path is connected.

  As shown in FIGS. 1 and 5 (a) to 5 (c), the tension applying / releasing tool 14 has two struts 15 on the carriage 3 with a required interval in the width direction of the carriage 3. The swing frame 16 having one end of the horizontal wire 12 connected to the upper end portion and the insertion hole 16a formed in the lower end portion is provided between the two support columns 15 in the width direction of the carriage 3. A holding bracket 18 that pivots about a swinging shaft 17 that extends to the center and that has a holding hole 18a formed at a required position under the one column 15 projects in the direction of travel of the carriage 3. The lock pin 19 is attached to the holding hole 18a of the holding bracket 18 and the fitting hole 16a of the swing frame 16 so as to apply tension to the horizontal wire 12 by holding the swing frame 16 at an inclined position. By inserting and punching out the lock pin 19 at the time of emergency stop Serial is arranged to release the tension of the horizontal wire 12.

  As shown in FIGS. 2, 4 (a) and 4 (b), a guide plate 20 disposed so as to sandwich both width ends of the stopper 9 is attached to the front end of the carriage 3 in the traveling direction. is there. A notch 20a for avoiding interference with the lifting bracket 9f when the stopper 9 is lifted is formed under the guide plate 20.

  In the embodiment shown in FIG. 1, a base bracket 21 projecting forward in the traveling direction of the carriage 3 is provided in the vicinity of the tension applying / releasing tool 14 on the carriage 3. A post 22 is erected for turning the horizontal wire 12 extending in the width direction of the carriage 3 by approximately 90 ° and guiding one end thereof to the upper end of the swing frame 16. The stoppers 9 are disposed at required eight positions in the width direction of the carriage 3, and one end of the horizontal wire 12 for lifting the stoppers 9 is connected to the upper end of the swing frame 16 via the post 22. Connected to the part.

  On the other hand, in FIG. 2, reference numeral 23 denotes a roller crawler disposed at a plurality of required positions on the lower surface of the carriage 3, and the stopper 9 is disposed corresponding to the position of the roller crawler 23, Assuming that the roller crawler 23 rolls in the opposite direction and the traveling direction of the carriage 3 is opposite (toward the left in the example of FIG. 2), the opposite side of the carriage 3 is the same as described above. Equipped with emergency stop device.

  Next, the operation of the above embodiment will be described.

  As shown in FIG. 6, when the carriage 3 on which the heavy object 4 is placed moves from the top of the ship 2 to the quay 1 side, the swing frame 16 of the tension applying / releasing tool 14 is moved as shown in FIG. If the lock pin 19 is fitted into the holding hole 18a of the holding bracket 18 and the fitting hole 16a of the swinging frame 16 so as to hold the tilted position and apply tension to the horizontal wire 12, the stopper 9 is shown in FIG. As shown, it is held in a state of being lifted to the front side in the traveling direction of the carriage 3 by the lifting wire 13 and moves together with the carriage 3.

  When it is necessary to stop the cart 3 urgently while the cart 3 is moving, when the operator punches the lock pin 19 with a hammer or the like, the rocking frame 16 is moved against the column 15 by the gravity. And the tension of the horizontal wire 12 is released.

  When the tension of the horizontal wire 12 is released, the stopper 9 that has been lifted up to that point falls on the travel path, and the roller crawler 23 of the carriage 3 rides on the stopper 9.

  Here, as shown in FIGS. 2, 4 (a) and 4 (b), the guide plate 20 disposed at the front end portion in the traveling direction of the carriage 3 so as to sandwich both width ends of the stopper 9. Therefore, while being guided by the guide plate 20, the wedge-shaped portion 9 b of the stopper 9 is surely entered in such a manner that it is driven relatively below the roller crawler 23 of the carriage 3.

  The wedge-shaped portion 9b of the stopper 9 is formed with an inclined surface 9a that is inclined upward in the traveling direction of the carriage 3, so when the roller crawler 23 of the carriage 3 rides on the inclined surface 9a of the stopper 9, When the carriage 3 decelerates and the front end portion in the traveling direction of the carriage 3 comes into contact with the convex portion 9c, the frictional force of the lower surface of the stopper 9 against the traveling path acts on the carriage 3 as a braking force, and the carriage 3 stops.

  As a result, in this embodiment, when the carriage 3 on which the heavy object 4 is placed is moved, the wires 5A, 5B, 5C, 5D (see FIG. 6) are broken, or the winches A, B, When the brake winches C and D (see FIG. 6) are stopped and the carriage 3 becomes uncontrollable, avoiding the carriage 3 from running away even if the running surface of the carriage 3 is inclined. It is done.

  For this reason, the carriage 3 does not collide with other structures with a large collision load, and there is no fear that the heavy object 4 will collapse.

  In this way, it is possible to reliably avoid the escape of the carriage 3 without using electricity with a simple configuration, and to prevent the heavy load 4 from collapsing.

  In addition, the emergency stop device for the heavy-duty carrying device of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

3 Cart 4 Heavy object 5A Wire 5B Wire 5C Wire 5D Wire 9 Stopper 9a Inclined surface 9b Wedge-like portion 9c Convex portion 10 Stopper switching support mechanism 11 Support member 12 Horizontal wire 13 Lifting wire 14 Tension applying / releasing tool 15 Post 16 Swing Frame 16a Insertion hole 17 Oscillating shaft 18 Holding bracket 18a Holding hole 19 Lock pin 20 Guide plate A winch B winch C Brake winch D Brake winch

Claims (4)

An emergency stop device for a heavy-duty conveying device that moves heavy objects loaded on a carriage by winding a wire with a plurality of winches,
A stopper arranged to be lifted on the front side in the traveling direction of the carriage,
A stopper switching support mechanism for switching between a position for holding the stopper in a lifted state so as to travel with the carriage and a position for dropping the stopper onto the traveling path so that the carriage rides upon an emergency stop ;
The stopper switching support mechanism is
A plurality of support members which are erected so as to protrude to the front side in the traveling direction of the carriage and are arranged in a width direction perpendicular to the traveling direction of the carriage;
A horizontal wire disposed so as to span between the support members;
A lifting wire that extends downward from the horizontal wire and lifts the stopper;
One end of the horizontal wire is connected, a position for applying tension to the horizontal wire to hold the stopper pulled up via the lifting wire, and loosening the horizontal wire to drop the stopper onto the travel path A tensioning / releasing tool that can be switched between
Emergency stop device for heavy goods apparatus characterized by comprising a. The stopper is
A wedge-shaped portion formed with an inclined surface that is inclined upward in the traveling direction of the carriage so that the carriage rides;
The emergency stop device for a heavy goods transporting device according to claim 1, further comprising: a convex portion projecting so that a front end portion in the traveling direction of the carriage abuts on a distal end side of the wedge-shaped portion. The tension applying / releasing tool is
A support column erected on the carriage;
A swing frame pivotably attached to the support column, one end of the horizontal wire connected to the upper end, and a fitting hole formed in the lower end;
A holding bracket attached so as to protrude from the lower part of the column and having a holding hole drilled at a required location;
A lock pin that is fitted into the holding hole of the holding bracket and the fitting hole of the swinging frame so as to hold the swinging frame in an inclined position and apply tension to the horizontal wire, and is punched out during an emergency stop. The emergency stop device for a heavy-duty carrying device according to claim 1 or 2 . The emergency stop device for a heavy article transport device according to any one of claims 1 to 3 , wherein a guide plate disposed so as to sandwich both width ends of the stopper is attached to a front end portion in the traveling direction of the carriage.

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