JPS60122687A - Wiring piping structure in overhead travelling crane - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring and piping structure for an overhead crane in which a telescopic beam for guiding a carrier up and down is suspended from a club trolley.

For example, in a conventional overhead crane of this type, as shown in FIG. A club trolley 4 is mounted on the provided rail 3'' so as to travel in a direction perpendicular to the traveling direction of the girder 2. A fixed frame 5 of an extensible beam is suspended and supported by the club trolley 4, and a movable frame 6 is inserted into the internal space of the fixed frame 5 so as to be movable up and down. A carrier 7 is connected to the lower end of the movable frame 6. As shown in FIG. 2, the movable frame 6 is suspended from a hoisting device 10 provided on the negative side of the club trolley 4 via a hanging rope made of wire rope.

The carrier 7 is raised by unwinding the suspension member 9 with this hoisting device 10, and is lowered by unwinding it. Further, cords such as cabtire cords, vacuum hoses, hydraulic hoses, etc. used for supplying a power source to the drive source for operating the carriage 7 are bundled together and installed between the carriage 7 and the club trolley 4. .

However, in this conventional overhead crane, a winch W is provided on the club trolley 4 in order to prevent the above-mentioned coats from hanging down and hitting each other and being damaged or entangled when the carrier 7 is lifted up. This winch W is configured to wind up the excess length of the hood.

As a result, the planar area of the club trolley 4 increases, which tends to narrow the movement range of the club trolley and, therefore, the space available for the overhead crane.

In addition, the scale requires wiring or piping to supply a power source to the winch W, and a control means is required to link the lifting and lowering of the movable frame 6 with the winch W, resulting in a complicated and expensive configuration. Moreover, there is also the disadvantage that running costs are high.

This invention was invented in view of the above-mentioned circumstances, and its purpose is to increase the space utilization efficiency of the crane, prevent cords from becoming entangled with a simple and inexpensive structure, and reduce running costs and reduce ceiling overhead. is to provide cranes.

In order to achieve such an object, the present invention provides a system in which cords for supplying a power source for operating the carriage, which are provided between the carriage and the club trolley, are passed through the movable frame and the guide rod. One end of the rod is fixed around a fixed part provided on the club trolley, and the part between the upper part of the guide rod of the 7-door type and the fixed part is suspended in a U-shape, and a pulley is attached to this U-shaped part. The weight is suspended and supported through the support.

With this configuration, as the carrier rises, the hoods will be pulled out from the top of the fixed frame by the weight of the weights, and will be stretched with the tension given by the weight of the weights and the weight of the U-shaped part. This prevents the bundled cords from flapping against each other and hitting each other, causing damage or tangles.

In addition, unlike a winch, there is no need for a special power source or single moving frame and synchronizer, so the flat area of the club trolley can be reduced, and as a result, the moving range of the club trolley can be narrowed.
You can expand the space where you can use the overhead crane. In addition, the structure is simple and the parts are extremely cheap, so it can be performed at a very low cost. Furthermore, since there is no need to use a special power source to pull out the cords,
Running costs can be reduced.

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIG. 2 is a front view showing the entire overhead crane according to the present invention. This overhead crane has two rails running in the front and back directions along the left and right walls in the upper half of the building.
A girder 2 is mounted on the girder 2, and a pair of front and rear rails 3 running in the left-right direction are provided on the upper surface of the girder 2, and a club trolley 4 is guided by these rails 3 and runs in the left-right direction. possible to be placed. The club trolley 4 is suspended and supported by a fixed frame 5 of an extensible beam having a rectangular vertical axis cylindrical shape so as to skewer the club trolley 4. That is, the fixed frame 5 suspended and supported by the club trolley 4 is extended to an appropriate height above the upper surface of the club trolley 4. As a result, the upper limit of the rise of the movable frame, which is inserted into the internal space of the fixed frame 5 so as to be able to rise and fall, is increased, and the lift can be further increased. In the internal space of the fixed frame 5, one or more (in this case, two) movable frames 6a and 61) are inserted in a multi-cylindrical shape so that they can be raised and lowered, and a carrier 7 is connected to the lower end of the movable frame 6a. be done. If the movable frame is configured with multiple cylindrical frames that expand and contract in multiple stages, for example, the club trolley 1
In the conventional model with one movable frame, the height of the carrier 7 is 2800n+m for the lunar height 713(l bll+1).
Although it is about 4120 Inm (in case of 2 stages)
It can be made larger.

As shown in FIG. 3, a suspension member 9 made of a chino is connected to the upper end of the movable frame 6a, and a hoisting device 1o for hoisting the suspension member 9 is attached to the second part of the fixed frame 5. Suspended support via Moon 12. The hoisting ring 13 of this hoisting device 1o is composed of a sprocket, and the hanging material 9 wound and kicked by this hoisting ring 13 is guided to the outside of the fixed frame 5 by a chain guide (not shown), and is guided to the outside of the fixed frame 5 by a chain guide (not shown). By providing the hoisting device 10 at a position away from the top surface of the club trolley 4, the top surface of the club trolley 4 is
The hoisting device 10 used in the past was changed to Ng+7. vinegar·
Instead of the area of the east face of the club trolley, a smaller plane area is required to insert the fixed frame 5, and this can be achieved by reducing the plane area of the club trolley and increasing its movement range. In addition, when hoisting, the hoisting point does not move at all, unlike when winding a wire or chain onto a drum, so no horizontal component force is applied to the movable frame via the suspension member 9, and the suspension is extremely stable. The material 9 can be rolled up and rewound.

As shown in FIG. 4, the movable frame 61) moves up and down relative to the fixed frame 5 by rolling the guide roller 16, which is pivotally supported at the lower end of the fixed frame 5, into contact with the movable frame 61).
The guide roller 18 pivotally supported at the two ends of "b" is attached to the fixed frame 5.
It is guided by rolling contact with the inner surface of. Code 15.
17 is each bracket, 7 points. The lifting guide of the tip movable frame 6a, which is inserted into the internal space of the movable frame 61) so as to be able to rise and fall, is as follows:
Similarly, the idle roller 21, which is pivotally supported on the upper end of the movable frame 6o, is brought into rolling contact with the inner surface of the movable frame 61), and the guide roller 22, which is pivotally supported on the lower end of the movable frame 61, is brought into contact with the inner surface of the movable frame 61). This is done by rolling contact with the outer peripheral surface of the

Furthermore, a stopper 1 is provided on the movable frame 6b to prevent it from falling off.
9 is provided, and a stomp 20 for receiving this stopper 19 from below is also provided on the fixed frame 5a. The movable tip frame 68 is also provided with a topper 23 to prevent it from falling off, and the oll stopper frame 6b has a stomp 24 to prevent the movable tip frame 6a from falling off and a topper to prevent the movable tip frame 6a from falling off. A striker 25 is provided.

By the way, the carrier 7 is provided with a suction pad 26 and a magnet 27, as shown in FIG. Further, a motor 28 is provided to rotate the carrier 7 around the vertical axis. The cabtyre cord IS29 that supplies power to the motor 28 is connected to the vacuum suction pad 26.
Together with the two vacuum hoses 30 connected to It is fixedly supported by a stand 31 erected.

The stand 31 is provided with a pulley 34, and the tire hood 29 and the vacuum hose 30 are attached to this pulley 34.
After being wrapped around it and hanging down in a U-shape, it is fixed to the stand 31. A weight 35 for tensioning two cabtire cords and a vacuum hose 30 with an appropriate tension is suspended via a pulley 36 on this U-shaped one-grandstand portion.

37 is a club trolley drive motor, 38 is a girder drive motor, 39 is a maintenance step, 40 is a rank for powering position detection, 41 is an encoder for girder position detection, ・
12 is an enfuder for detecting the position of the club trolley, and 431 is an earth control panel. Although not shown, the club trolley 4-
The machine is equipped with a vacuum presser and a vacuum tank for vacuum suction.

In the overhead crane configured in this way, cords such as the two cabtyre hoods and the vacuum hose 30 are connected to the carrier 7.
The weight of the weight 35 causes the sword to be pulled out of the fixed frame 5 and suspended in a U-shape, and the weight 35 always applies an appropriate tension to the cord. The hoods do not hit each other, and no damage to the hoods occurs due to such hitting. Also, cords do not get tangled with each other. Furthermore, since the winch for winding up the cabtire hood 29 and the vacuum hose 3 (), the winding reel, the motor that drives it, and means for synchronizing the motor with the winding device 10 can be omitted, the configuration is simple and In addition to being inexpensive, there is no need for driving force for raising and lowering the cord, and running costs can be reduced.

As explained above, the wiring and piping structure of the overhead crane according to the present invention allows the cords to pass through the inside of the slide mast and the guide rod, and fixes one end of the cords to the fixed part provided on the club trolley, and then lifts the carrier. 3. Apply appropriate tension with a weight between the top of the guide rod and the fixed part of the guide rod to remove the excess cord I'm when
Since the hoods are hung in the shape of a letter, it prevents the excess parts of the hoods from hitting each other and damaging them, or from getting tangled. Furthermore, compared to the conventional method in which the excess cords are wound up using a winch or the like, it can be carried out extremely easily and at low cost because it is made up of a tube and the parts are inexpensive. Furthermore, since the cords are pulled out by the weight of the weight and no special power source is required, wiring, piping, etc. can be simplified and the running post can be made at low cost.

Moreover, instead of a winch that occupies a large area, a small ilj surface for hanging the hoods in a U-shape can be secured, so the area of the club trolley can be reduced, and the movement range of the club trolley can be increased. The space utilization rate can be increased by doing so.

[Brief explanation of drawings]

Fig. 1 is a front view showing the whole of the conventional example, Fig. 2 is a front view showing the whole of one embodiment of the present invention, Fig. It is a diagram. 4... Club trolley, 5... Guide frame, 6a... Tip ++ construction frame, 61)... III moving frame, 7... Carrier,
29, 30... Cords (cab tire cord/vacuum hose), 31... Fixed part (stand), 35...
Weight, 36... Procedural amendment (method) 3 % formula % 2, Title of invention Wiring and piping structure in overhead crane 3
, Relationship with the case of the person making the amendment Patent applicant name) Shinwa Giken Co., Ltd.

Claims (1)

[Claims] (1) A fixed frame of the telescopic beam is suspended and supported on the club trolley, and cords for supplying a power source for operating the transporter are provided between the transporter attached to the movable frame at the end of the telescopic beam and the club trolley. In the overhead crane, the above cords are passed through the movable frame and the guide frame, and one end of the cords is fixed to a fixed part provided on the club trolley, and the cables are connected from part 2 to fixed part 2 of the guide frame for the cords. A wiring and piping structure for an overhead crane, in which a part between the parts is suspended in a U-shape, and a weight is suspended and supported from this part through a pulley.