JPH03256974A - Cable basket and crane - Google Patents

Abstract

PURPOSE:To keep off any random winding of a cable by installing a winding cable guide being set up free of rotation in space between an inlet to a cable basket and a storage space housing the cable after being rolled so as to substantially go along a spiral form of the cable laying between the said inlet and the storage space. CONSTITUTION:When a hoisting accessory descends from a lift upper limit, a cable 15 is drawn out of a storage part 29 (cable storage space) in the left- hand direction. At this time, cable guides 40-42 are pushed left-handedly by the cable 15, and thereby a turning shaft 30 is rotated counterclockwise. Next, when a hoisting accessory goes up, the cable 5 is going to be rolled on the storage part 29 of a cable basket 21 clockwise by help of its own twist, as being pushed by the cable guides 40-42 through a right-hand torque generated by a driver 35. Consequently, such a possibility that even if the hoisting accessory is lifted up at high speed, the cable 15 is buckled or the like in an enclosure 23 and thereby it might not be housed in the storage space 29 is prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cable basket with a cable storage device for storing cables for supplying power to crane hanging tools and the like.

[Conventional technology]

A cable basket installed on a crane's lifting equipment consists of an enclosure that stores the cables and a conical or cylindrical core placed inside. Due to its own weight and twist, it is naturally attached around the core.

Furthermore, as shown in Japanese Utility Model Application Laid-Open No. 64-12084, there is a cable guide which is provided with a cable guide that rotates in one direction with respect to the central axis of the cable guide, and forcibly winds the cable.

Although this method employs a torque motor as the rotational drive source for the cable guide, methods have also been proposed in which the rotational force is obtained from other drive sources such as a vortex spring.

[Problem to be solved by the invention]

Of the above conventional techniques, the former works without an interlayer when the lifting speed is slow, but when the lifting speed is slow, the cables are not tied in one direction and the cables are As a result, the cable did not enter the basket, and the upper part of the cable protruded from the basket droplet.

The latter technology is intended to solve the problems of the former, as the cable guide presses the cable while removing it, so the cable may stick tightly to the core, and the rotation speed of the cable guide may not match the cable's insertion speed. If the cable could not be followed, the cable would wind up randomly in the basket, resulting in the cable becoming tangled with the cable guide during winding down, resulting in the cable being disconnected. That is, this problem occurred when the climbing speed became faster.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cable basket with a cable storage device that can prevent cables from being wound around a core or randomly wound within the cable basket.

[Means to solve the problem]

A feature of the present invention is that a cable guide for removing cables is rotatably installed between an entrance to a cable basket and a storage space in which the cables are folded and stored. This means that the ball was thrown substantially along the spiral shape.

[For production]

The cable guide for catching the cable is arranged in the same way as described above, so that even if the cable is fed into the cable basket at high speed, the cable does not buckle and is stored regularly along a certain path. do.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

The cable basket garden is installed on the top of a hanging device suspended from a moving object such as a crane trolley with a rope.

A cable cable for power supply, etc. is suspended from the moving body.

The beauty of the cable basket consists of a cylindrical core 4 with a conical upper part, a cylindrical lower enclosure 4 surrounding it, and a cylindrical upper enclosure with a truncated conical upper end attached with bolts. and a plurality of ring-shaped guides provided under the upper end. Core 21. Upper enclosure 23. The lower enclosure 4 and the guide are arranged concentrically. The space between the outer periphery of the cylindrical part of the core 4 and the inner surface of the vertical part of the opposing enclosure 23 is the storage part of the cable school. A rotating picture wheel is installed at the center of iZl. The rotating shaft is driven by a drive device. As is well known, the drive device IA is equipped with a rotating shaft (9
) is rotated, and when the hanging tool is lowered, the cable b is taken out and rotated to avoid rotation. The drive unit consists of a torque motor and a spiral spring.

: At the lower end of the rotating shaft I protruding above j521, a large cable guide shaft for winding the cable is attached to the conical part 2 of 5.
A plurality of small cable guides 41 and 42 (two in this example) are placed above the cable guides 41 and 42.
It is installed on the rotating shaft (capital). This cable guide 40
．． 41.42 is the straight path of the cable school from the cable storage space 4 to the phantom entrance of the upper enclosure (guide 24).
The cable is placed on the optimal cable storage path S>. Actually, the large cable guide is the standard, so the small cable guide 41, 4! is placed on the true path from above. That is, as is clear from FIGS. 1 and 2, the upper guide has a smaller rotation radius than the lower guide. Further, the lower guide is provided to be located behind the upper guide in the rotation direction of the rotary ring image when removing the cable.

Cable guide 40141. u has a ring shape, and a cable 15 passes through this large direction. cable guide 4
The hole diameter in the rotation direction of 0.41.42 is small cable guide 4.
1.4! larger than the hole diameter.

Cable guide ψ, 41, 42! II! As shown in FIG. 3, a portion 40m of the ring is rotatable outwardly around the bin 40b, through which the cable B is inserted.

Then, fix it with pin 40c.

Cable guides 40°41 along the axial direction for rotating wheels
．． A large number of 42 mounting holes are installed. As a result, the mounting positions of the upper small cable guides 41 and 42 are adjusted to optimal positions.

In the above configuration, when the hanging tool descends from the upper limit of the lifting height, the cable b is pulled out from the storage portion 3 in a counterclockwise direction. At this time, cable guide 40.41.4! is pushed counterclockwise by the cable handle, and the rotation axis I is rotated counterclockwise.

Next, when the hoist rises, the cable guide is moved by the clockwise torque generated by the drive device.

While being pushed at 41.42, the cable was wound clockwise into the storage compartment of the cable basket Otsu with the help of Takumi's own twisting. Therefore, even if the lifting equipment is raised at high speed,
This prevents the cable b from buckling within the enclosure and not being stored within the storage space.

The vertical distance between the small cable guide 41 and the large cable guide cut is such that the cable 15 will not buckle between them when the hanging tool is raised at high speed.

The optimal storage meridian for cable b means that even at high speeds, the cable does not buckle with the cable basket whitening, and therefore the cable will not buckle! & an inconvenient path, which can be found by adjusting the position of the cable guides 41,42.

In this embodiment, there are two cable guides, a large cable guide and small cable guides 41 and 42, but another cable guide is provided between the large cable guide and the group of small cable guides 41 and 42. It may be provided. The location of this additional cable guide is on the optimal storage path for the above-mentioned deviation.

The inner diameter of the small cable guides 41 and 42 is about three times the diameter of the cable guide. The large cable guide chrysanthemum has a shape (large diameter) with ample space in the direction of rotation so that it can follow the amount of load in the storage space.

The gate serves to provide linearity to the cable so that the cable B does not protrude outside the cable basket field.

Cable guide 41. a:l are provided close to each other and substantially form a group. Therefore, even if the cable b is the cable guide 41 or 42CIL/, the bending radius of the cable cram is large, and the cable b can be wound up well without being bent with a small radius. The cable guide is also preferably composed of two rings like Cable Guide Co. and C.

By applying a lubricant to the cable handles and cable guides 40, 41, and 42, storage performance can be improved.

Excessive twisting of cable B will cause random winding, so it is best to twist it around 5 times.

When the cable basket with storage device has multiple rows of storage parts 3, when the hoisting speed is low, it sticks well to the 5th side, and when the hoisting speed is high, it is enclosed by centrifugal force and stored on the 23th side, so it can be used 41 times. There will be a difference in the cable twist, resulting in random winding. The second problem can be solved by arranging the storage compartments in one row as in this embodiment.

According to this embodiment, it is possible to prevent the cable from winding up loosely due to buckling and coming off the cable basket, and therefore to prevent the cable from becoming entangled in the cable guide (and possibly causing a cable breakage accident).

The embodiment shown in FIG. 114 shows another embodiment of the small cable guide 41, 42, which is a cylindrical member 6. It is preferable that the large cable guide cutter is also constructed from such a cylindrical member.

Although there are three or two cable guides in each of the above embodiments, there may be a number of cable guides, or the cable guides may be constructed from one member from the upper part to the lower part.

〔Effect of the invention〕

According to the present invention, since the cable can be stored in the cable basket even at high hoisting speeds, it is possible to prevent an accident of cutting the cable, and there is also an effect of greatly improving the efficiency of handling.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of a cable basket according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line 2-2 of Fig. 1, Fig. 3 is an enlarged view of a large cable guide, and Fig. 184 is a small cable guide of the present invention. FIG. 3 is a longitudinal cross-sectional view of an embodiment of a cable basket; B...cable, circle...cable basket, 4...stone, z, 23...enclosure,
For...Guide, Co...Storage part, (9)...
...rotating shaft, ah... drive device, shaft...''
A/Figure OZ Figure 3

Claims (1)

[Claims] 1. A substantially cylindrical cable storage space with its axis oriented vertically, and a cable storage space provided at the upper end of a first enclosure constituting the outside of the cable storage space, with a small diameter at the top. a conical second enclosure; a cable guide rotatably provided within the second enclosure around the axis of the cable storage space and for winding the cable in contact with the cable; and the cable guide. and a drive device for rotating the cable basket, wherein the cable guide is provided so as to substantially follow the spiral of the cable between the upper end of the second enclosure and the cable storage space; A cable basket featuring 2. The cable basket according to claim 1, wherein the cable guide comprises a plurality of cable guides arranged substantially along the spiral. 3. A substantially cylindrical cable storage space with its axis oriented vertically, and a conical second enclosure with a small diameter at the top, provided at the upper end of the first enclosure that constitutes the outside of the cable storage space. a cable guide provided in the second enclosure so as to be rotatable about the axis of the cable storage space and for winding the cable in contact with the cable; and a drive for rotating the cable guide. In the cable basket comprising: a device, the cable guide comprises:
It consists of a first cable guide provided on the upper side in the second enclosure and a second cable guide provided on the lower side in the second enclosure, and the second cable guide is connected to the first cable guide.
A cable basket, characterized in that the cable basket is provided radially outside of the first cable guide, and is provided rearward of the first cable guide in the cable winding direction when viewed from the axial direction. 4. The cable basket according to claim 3, wherein the first cable guide and the second cable guide have holes through which the cables pass. 5. The cable basket according to claim 4, characterized in that the hole diameter in the rotational direction of the second cable guide is larger than the diameter of the hole in the rotation direction of the second cable guide. 6. The cable basket of claim 3, wherein a desired one of the first and second cable baskets has a predetermined length in a substantially vertical direction. 7. The cable basket according to claim 3, wherein the first cable basket is composed of two cable baskets separated in the vertical direction, and the lower cable guide is larger than the upper cable guide in the direction of rotation during cable winding. A cable basket characterized by being provided at the rear. 8. The cable basket according to claim 3, wherein the distance between the core and the enclosure constituting the storage space is such that substantially only one cable to be stored is lined up. cable basket. 9. A crane characterized in that the cable basket according to claim 3 is installed on the upper part of a hanging tool that is suspended from a movable body so as to be able to rise and fall freely.