JP3391659B2 - Cable winding device for large rotating machines - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable treatment for a low-speed horizontal axis large-sized rotating machine such as a proton beam therapy device,
The present invention relates to a cable winding device that winds a cable extending to the outside of the device on a cable spool provided around a large rotating machine.

[0002]

2. Description of the Related Art In a low-speed horizontal axis large-sized rotating machine such as a proton therapy apparatus, generally, the large-sized apparatus as a whole rotates at a low speed on a rotation axis substantially horizontal to the floor surface. And a large rotating machine has a large number of electromagnets and electrical equipment inside, and in particular, a proton beam therapy device
In addition to this, an irradiation device which is the heart of the device is provided. The number of power supply lines and control lines connected to each of these devices is large, and for example, in the case of a proton beam therapy device, the size is about 900. These power lines and control lines are extended from the ground terminal box provided outside the device and connected to the large rotating machine, but since the large rotating machine rotates, they were provided around the large rotating machine. It is wrapped around a cable spool. Further, since the number of power supply lines and control lines is large and there are various thicknesses and it is inconvenient to handle, the power supply lines and control lines are bundled into a predetermined number of lines to have approximately the same thickness, and the number is reduced.

FIG. 12 is a side view of a conventional cable winding device for a large rotating machine. In FIG. 12, reference numeral 1 denotes a cable spool that is supported from the floor and is provided on the outer periphery of a large-sized rotating machine that rotates around a rotation axis whose axis direction is horizontal and that rotates with the large-sized rotating machine. The cable spool 1 has a substantially cylindrical shape, is provided concentrically with the rotary shaft of a large-sized rotating machine, and has a guide groove formed on its outer peripheral surface for guiding the cable 6. In the case of a proton beam treatment device or the like, a large rotating machine is provided with a vacuum duct for guiding a proton beam in the center, and an electromagnet or the like is arranged around the vacuum duct, and the diameter of the large rotating machine is about 2 m. The diameter of the cable spool 1 provided on the outer circumference is about 2.2 m. Then, in the case of a proton therapy apparatus or the like, the large rotating machine rotates about plus or minus 185 degrees from the reference position.

Reference numeral 4 is a ground terminal box fixed to the side wall of the room. Reference numeral 6 denotes a plurality of cables in which a predetermined number of power supply lines and control lines are bundled into one cable. In FIG. 12, the cable 6 looks like one, but actually, a plurality of cables 6 are arranged side by side in the axial direction of the large-sized rotating machine. Cable 6
Is that power lines and control lines of other thicknesses are tied with binding bands here and there at predetermined intervals in the length direction so that a certain number of wires are gathered and each bundle has the same diameter. Is formed into a single cable. One end of each power supply line and control line is connected to an electromagnet or electrical equipment of a large-sized rotating machine, collected at a predetermined position of the large-sized rotating machine, and bundled from that position to form a cable 6, which is attached to the cable spool 1. It extends through the hole provided in the radial direction to the outer peripheral surface of the cable spool 1, and is wound around the cable spool 1 from that position. After being wound around the cable spool 1 a predetermined number of times, the cable 6 hangs down from the cable spool 1 and the other end reaches the ground terminal box 4.

The portion of the cable spool that hangs downward has a sufficient length so as not to hinder the rotation of the large-sized rotating machine, and hangs down in a substantially U-shape.
The cable 6 reaching the ground terminal box 4 is introduced into the ground terminal box 4 and then unbundled.
Some are connected to the switchboard inside, and some pass through the ground terminal box 4 and are connected to external devices. In particular, the coaxial cable to which an image is sent is laid without interruption on the way from the image device in the large-sized rotating machine to the external device via the ground terminal box 4.

The cable spool 1 rotates with the rotation of a large-sized rotating machine, and winds or unwinds the cable 6 along a guide groove formed on the outer peripheral surface. When the cable spool 1 has paid out all the cables 6, the U-shaped portion of the cable 6 hangs down to the lowest position, but at this time, the cable spool 1 is prevented from coming into contact with the floor surface or the side wall. A cable pit 20 having a predetermined depth and a predetermined width is dug below.

[0007]

Since the conventional cable winding device for a large-sized rotating machine is constructed as described above, the length of the cable 6 depends on the outer shape of the cable spool 1 and the rotation angle of the large-sized rotating machine. It was decided that the depth of the cable pit 20 commensurate with this length was necessary. further,
Since the cable 6 hangs down in a U-shape with a width wider than the outer diameter of the cable spool 1, the width of the cable pit 20 that corresponds to this width is required. Further, since the weight of the cable 6 becomes large and the cable 6 hangs only from one side of the cable spool 1, a force for rotating the cable spool 1, that is, a rotational torque acts due to its own weight of the cable 6, but in order to overcome it. , It was necessary to install a large motor or brake on a large rotating machine.

The present invention has been made to solve the above problems, and minimizes the rotating torque generated by the weight of the cable, and the width of the cable pit can be reduced regardless of the outer diameter of the cable spool. It is an object to obtain a cable winding device for a large rotating machine, which can be small.

[0009]

According to a first aspect of the present invention, there is provided a cable winding device for a large rotating machine, wherein a rotating shaft of the large rotating machine is provided around a large rotating machine having a horizontal axis. A cylindrical large-diameter spool concentrically provided with one end is connected to a large-sized rotating machine, penetrates the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, and is wound a predetermined number of times on the large-diameter spool. And a first cable that hangs down in a U-shape in the cable pit dug below the large-diameter spool, and the other end is introduced into the first ground terminal box provided in the opening of the cable pit, and one end Is connected to a large rotating machine,
The first spool extends through the large-diameter spool and extends to the outer peripheral surface of the large-diameter spool.
Is wound around a large-diameter spool a predetermined number of times in the opposite direction to the cable, and hangs down in the cable pit in a U shape, and the other end is introduced into a second ground terminal box provided in the opening on the opposite side of the cable pit. And a second cable.

In the cable winding device for a large rotating machine according to a second aspect of the present invention, the cable winding device for a large rotating machine is provided around a large rotating machine which rotates around a rotating shaft having a horizontal axis direction and concentric with the rotating shaft of the large rotating machine. A cylindrical large-diameter spool, and a cylindrical small-diameter spool arranged below the large-diameter spool so as to be rotatable around a rotation axis parallel to the axis of the rotation axis of the large-diameter spool, with a predetermined gap therebetween. One end is connected to a large-sized rotating machine, penetrates the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, is wound a predetermined number of times around the large-diameter spool, wraps around the small-diameter spool, and is placed below the large-diameter spool. In the dug out cable pit, a U-shaped dangle, the other end is connected to the first cable that is introduced into the first ground terminal box provided in the opening of the cable pit, and one end is connected to a large rotating machine. Penetrate the large diameter spool to Is extended to the outer peripheral surface of the reel and is wound around the large diameter spool at a different position in the axial direction from the first cable in the direction opposite to the first cable, and on the side opposite to the first cable. It is provided with a second cable that is wound around a small-diameter spool, hangs down in a U-shape in the cable pit, and the other end is introduced into a second ground terminal box provided in an opening on the opposite side of the cable pit. .

According to another aspect of the present invention, there is provided a cable winding device for a large-sized rotating machine, which comprises a cylindrical large-diameter spool provided around a large-sized rotating machine which rotates in a horizontal direction and concentric with a rotating shaft of the large-sized rotating machine. A cylindrical small-diameter spool rotatably arranged at a predetermined distance diagonally above the large-diameter spool around a rotary shaft parallel to the axis of the rotary shaft of the large-diameter spool, and one end of which is connected to a large-sized rotating machine. , Is extended to the outer peripheral surface of the large diameter spool, wound a predetermined number of times on the large diameter spool, wound around the small diameter spool, and hangs down in a U shape to the side of the large diameter spool, and the other end is to the side of the large diameter spool. And a weight that is fixed to the cable between the small-diameter spool and the ground terminal box and that applies tension to the cable.

In a cable winding device for a large-sized rotating machine according to a fourth aspect of the invention, a plurality of cables are provided and wound in a guide groove formed on the outer peripheral surfaces of the large-diameter spool and the small-diameter spool so as to be overlapped in the radial direction. The overlapped and wound cables are vertically shifted so that they do not overlap each other at the U-shaped hanging portions.

In the cable winding device for a large-sized rotating machine according to a fifth aspect of the present invention, a plurality of electric wires are housed in a heat-shrinkable tube to form a single cable.

In the cable winding device for a large-sized rotating machine according to a sixth aspect of the present invention, the plurality of electric wires are arranged in the heat-shrinkable tube so as to form one row in cross section, and a spacer is housed between adjacent electric wires. The cable is a flat plate having a main surface parallel to the outer peripheral surface of the large diameter spool.

In the cable winding device for a large-sized rotating machine of claim 7, the cable is formed by bundling a plurality of electric wires, and the electric wires extend to the outer peripheral surface of the large-diameter spool and the ground terminal. It is cut at the position where it is introduced into the box,
They are connected via a first connector provided on the outer peripheral surface of the large-diameter spool and a second connector provided on the ground terminal box.

[0016]

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1. FIG. 1 is a side view of a cable winding device for a large rotating machine according to the present invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 showing a state in which a cable is hung on the outer peripheral surface of the large diameter spool. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 showing a state in which a cable is hung on the outer peripheral surface of the small diameter spool. 1 to 3, reference numeral 1 denotes a cable spool that is a large-diameter spool that is provided on the outer periphery of the large-sized rotating machine and rotates together with the large-sized rotating machine. The cable spool 1 has a substantially cylindrical shape, is provided concentrically with the rotary shaft of a large-sized rotating machine, and has a plurality of guide grooves 1a for guiding the cable 6 formed on the outer peripheral surface thereof.

Reference numeral 2 denotes a small-diameter spool arranged below the cable spool 1 at a predetermined distance so as to be rotatable around a rotation axis parallel to the rotation axis of the cable spool 1. The small-diameter spool 2 has a substantially cylindrical shape, and a plurality of guide grooves 2a for guiding the cable 6 are formed on the outer peripheral surface thereof. The small-diameter spool 2 is arranged so that the plurality of guide grooves 2a provided on the outer peripheral surface are in the same position as the plurality of guide grooves 1a of the cable spool 1 in a one-to-one correspondence in the axial direction. The small diameter spool 2 is rotatably supported at the center of the opening of the cable pit 20 by a small diameter spool bearing 3 protruding from the side wall of the cable pit 20.

6 is a cable in which power supply lines and control lines are bundled into a single cable as in the conventional case. Cable 6
It is formed by bundling several power lines and control lines of other types, each bundle having the same diameter, and being tied with binding bands at certain intervals in the length direction. There is.
One end of each power supply line and control line is connected to each electromagnet or electrical equipment of the large-sized rotating machine, collected at a predetermined position in the large-sized rotating machine, and bundled from that position to form a cable 6, which is attached to the cable spool 1. It is extended to the outer peripheral surface of the cable spool 1 through a hole drilled in the radial direction, and is wound around the cable spool 1.

In the first embodiment, 18 cables 6 are provided in total. 8 out of 18 cables 6
The first cable 6a, which is a book, is placed at a predetermined position below the cable spool 1 in FIG.
1 is then wound around the outer peripheral surface of the small-diameter spool 2 in the clockwise direction of FIG. After being wrapped around, it hangs downward. The cable 6a that hangs downward hangs down in the cable pit 20 in a U shape, and the other end thereof reaches the first ground terminal box 4a installed on the floor of the room at the opening of the cable pit 20. .

In FIG. 1, the cable 6a looks like a single cable, but this is merely a diagram showing the route of the cable 6, and in fact, as shown in FIGS. 2 and 3. In the guide groove 1a and the guide groove 2a, two windings are radially overlapped and wound. It is arranged in four rows in the axial direction. The cable 6a is for the purpose of suppressing shaking,
The cable pit 5 is fixed to the wall surface inside the opening of the cable pit 20 and the floor surface outside.

The second cable 6b, which is the other 10 of the 18 cables 6, is shown in FIG.
At a predetermined position below, the cable spool 1 is extended to the outer peripheral surface, and then is wound around the cable spool 1 in the counterclockwise direction of FIG. It leaves the spool 1, passes above the small diameter spool 2, is wound around the right side of the small diameter spool 2 in FIG. 1, and then hangs downward. The cable 6b that hangs downward hangs in a U shape inside the cable pit 20, and then the other end has a second ground terminal box 4 installed on the opposite side of the first ground terminal box 4a and the cable pit 20.
It has reached b. That is, the first cable 6a and the second cable 6a
The cable 6b is disposed so as to be substantially symmetrical with respect to the planes passing through the axes of the cable spool 1 and the small diameter spool 2. The second cable 6b is also the first
Guide groove 1a and guide groove 2 in the same manner as the cable 6a of
Two pieces are wound in the radial direction a in the radial direction, and the cable pits 5 are fixed at predetermined positions on the wall surface inside the opening of the cable pit 20 and the outer floor surface.

The first cable 6a and the second cable 6b, which are wound around the cable spool 1 and are directed downward from the left and right in FIG. 1, cross the upper side of the small diameter spool 2 and then on the opposite side to the small diameter spool. It is wrapped around 2, and further hangs downward in a U shape. The first cable 6a and the second cable 6b are
Due to its own weight, it is exactly housed in the guide groove 1a and the guide groove 2a. Each cable 6a, 6b
2 and 3 are overlapped and wound, as shown in FIGS. 2 and 3, but those wound outside with the cable spool 1 are placed inside with the small diameter spool 2 and with the cable spool. What is wound inside by 1 is wound by the small diameter spool 2 so as to be outside. U hanging down below each of the cables 6a and 6b of the present embodiment
Since the character-shaped portion is hooked on the small-diameter spool 2, the width is reduced. Therefore, the width of the cable pit 20 may be smaller than the conventional one. Even if the outer diameter of the cable spool 1 increases, the width of the U-shaped portion that hangs downward does not increase and the cable pit 2
There is no need to increase the width of 0.

Next, the operation will be described. The cable spool 1 in FIG. 1 shows a position rotated slightly to the left from the reference position. In this state, the cable 6b hangs down to a deep position in the cable pit 20. From this state, as shown by the arrow in FIG. 1, when the cable spool 1 rotates to the right, the cable 6b is wound up on the cable spool 1 and, conversely, the cable 6a is paid out. On the other hand, when the cable spool 1 rotates counterclockwise, the cable 6a is wound around the cable spool 1 and the cable 6b
Goes out. In this way, as the cable spool 1 rotates, the cables 6a and 6b are wound or unwound, and the U-shaped portions hanging downward move the cable pits 20 up and down alternately.

In the cable winding device for a large-sized rotating machine constructed as described above, the first cable 6a and the second cable 6a
Cable 6b is wound around the cable spool 1 in the opposite direction, and hangs on the small diameter spool 2 on the opposite side and hangs downward in a U-shape.
The rotational torques that are generated are canceled out by each other and become small. Therefore, a large motor or brake is unnecessary. Further, the width of the cable pit 20 can be made small regardless of the diameter of the cable spool 1. Further, since each of the cables 6a and 6b is wound in the radial direction so as to be overlapped two by two, a large number of cables can be wound.

In the present embodiment, each cable 6
The types of a and 6b are not particularly described. For example, if the first cable 6a is a bundle of control lines, the second cable 6b is a bundle of power lines. Since the cables 6a and 6b are close to each other, the noise on the cables can be reduced.

Further, in the present embodiment, the total number of the cables 6 wound around the cable spool 1 and the small diameter spool 2 is 18, but when the number is more than this number, the cable spool 1 and the small diameter spool 2 are provided. However, a predetermined number of them are arranged side by side in the axial direction of the large-sized rotating machine, and the same number of coils are wound around them to increase the number.

Embodiment 2. FIG. 4 is a side view showing another example of the cable winding device for a large rotating machine according to the present invention.
In the figure, 1 is a cable spool that is a large-diameter spool that is provided on the outer periphery of a large-sized rotating machine and rotates together with the large-sized rotating machine as in the first embodiment. Cable spool 1
Has a substantially cylindrical shape, is provided concentrically with the rotating shaft of a large-sized rotating machine, and has a plurality of guide grooves formed on the outer peripheral surface thereof for guiding the cable 6. Reference numeral 12 is a small-diameter spool, which is a fixed pulley that is provided obliquely above the cable spool 1 that is a large-diameter spool with a predetermined distance therebetween and is rotatably supported from the ceiling.

The small-diameter spool 12 has a substantially cylindrical shape,
A plurality of guide grooves for guiding the cable 6 are formed on the outer peripheral surface. The small-diameter spool 12 is arranged such that the plurality of guide grooves provided on the outer peripheral surface thereof are in the same position as the plurality of guide grooves of the cable spool 1 in a one-to-one correspondence in the axial direction. The small diameter spool 12 is rotatably supported by a small diameter spool bearing 13 protruding from the ceiling.

The cable 6 is extended to the outer peripheral surface of the cable spool 1 and then wound in the counterclockwise direction in FIG. 1 and then upwardly and then wound around the small-diameter spool 12, and this time downwardly and downwardly. It is hanging to the side of 1. The cable 6 hanging down is the cable spool 1.
After hanging down in a U shape to the side of, the other end reaches the ground terminal box 4a installed on the step of a predetermined height.
The cable 6 is fixed to the wall surface of the step by the cable pressing metal fitting 5 for the purpose of suppressing the shaking.

A weight 7 for applying tension to the cable 6 is fixed to the cable 6 between the small diameter spool 12 and the ground terminal box 4a. The weight 7 is suspended and fixed by a wire at a predetermined position of the cable 6, and has a U-shaped cross section so as not to come into contact with the cable 6.

Next, the operation will be described. When the cable spool 1 rotates clockwise as indicated by the arrow in FIG. 4,
The cable 6 is wound around the cable spool 1. On the contrary, when the cable spool 1 rotates counterclockwise, the cable 6 is paid out from the cable spool 1. In this way, as the cable spool 1 rotates, the cable 6 is wound or unwound and hangs downward.
The character portion moves up and down on the side of the cable spool 1. Since the weight 7 is fixed to the cable 6, tension is exerted on the cable 6 due to its mass. Therefore, it does not loosen and does not come out of the guide groove when it is wound up or when it is paid out.

In the cable winding device for a large-sized rotating machine constructed as described above, the space on the side of the device can be effectively utilized, and it is necessary to provide a cable pit below the cable spool 1 with a depth greater than necessary. It is effective in reducing construction costs.

In this embodiment, the cable 6 is wound only in one direction of the cable spool 1, and the small diameter spool 12 is arranged only on one side of the cable spool 1. Are arranged above both sides of the cable spool 1, and about half of the cables 6 are wound around the cable spool 1 in opposite directions.
It is also possible to cancel the rotational torque by hanging it in a U-shape laterally after being wound around.

Embodiment 3. FIG. 5 is a side view showing another example of the cable winding device for a large-sized rotating machine of the present invention.
In the figure, 1 is a cable spool that is a large-diameter spool that is provided on the outer periphery of a large-sized rotating machine and rotates together with the large-sized rotating machine as in the first embodiment. Cable spool 1
Has a substantially cylindrical shape, is provided concentrically with the rotating shaft of a large-sized rotating machine, and has a plurality of guide grooves formed on the outer peripheral surface thereof for guiding the cable 6.

About half of the first cables 6a of the plurality of cables 6 are wound in the clockwise direction of the cable spool 1 in FIG. 5 and hung downward on the right side of FIG. It hangs down in a letter shape, and then the other end reaches the first ground terminal box 4a installed on the floor surface of the opening of the cable pit 20. Also, a plurality of cables 6
The second cable 6b, which is the other half of the above, is wound counterclockwise in FIG. 5 of the cable spool 1 and hangs downward on the left side of FIG. 5, and hangs down in the cable pit 20 in a U shape. After that, the other end is the second ground terminal box 4b.
To the second ground terminal box 4b installed on the floor opposite to the above.

Next, the operation will be described. Cable spool 1
When is rotated clockwise, the second cable 6b is wound up, the first cable 6a is paid out, and the U-shaped portion of the first cable 6a hangs down to a deep position inside the cable pit 20. On the contrary, when the cable spool 1 rotates counterclockwise, the first cable 6a is wound up, the second cable 6b is paid out, and the U-shaped portion of the second cable 6b hangs down to a deep position in the cable pit 20.

In the cable winding device for a large-sized rotating machine constructed as described above, the first cable 6a and the second cable 6a
Cable 6b is wound around the cable spool 1 in the opposite direction and hangs downward in a U-shape on the opposite side. Therefore, the rotational torques generated by the cables 6a and 6b are canceled by each other and are small. Become. Therefore, a large motor or brake is not needed.

Fourth Embodiment FIG. 6 is a side view showing another example of the cable winding device for a large-sized rotating machine of the present invention.
In the figure, 1 is a cable spool 1 which is a large-diameter spool that is provided on the outer periphery of a large-sized rotating machine and rotates together with the large-sized rotating machine as in the first embodiment. The cable spool 1 has a substantially cylindrical shape, is provided concentrically with the rotating shaft of a large-sized rotating machine, and has a plurality of guide grooves for guiding the cable 6 formed on its outer peripheral surface.

About half of the first cables 6a of the plurality of cables 6 are wound around the cable spool 1 in the counterclockwise direction of FIG. 6, and are hung downward on the left side of FIG. A first U-shaped descent, then installed on the floor of the opening opposite the cable pit 20
To the ground terminal box 4a. The second cable 6b, which is the remaining approximately half of the plurality of cables 6, is wound around the cable spool 1 in the clockwise direction of FIG. 6, and hangs downward on the right side of FIG. Then, the other end reaches the second ground terminal box 4b installed on the floor surface of the opening opposite to the first ground terminal box 4b.

As in the first embodiment, the first cable 6a and the second cable 6b are each wound around the guide groove of the cable spool 1 in the radial direction so as to be overlapped two by two. Further, on the ground terminal boxes 4a, 4b side, the cables wound inside are introduced with different heights so that they are on the upper side.

Next, the operation will be described. Cable spool 1
When the is rotated counterclockwise, the second cable 6b is wound up, the first cable 6a is paid out, and the U-shaped portion of the first cable 6a hangs down to a deep position in the cable pit 20. On the contrary, when the cable spool 1 is rotated clockwise, the first cable 6a is wound up, the second cable 6b is paid out, and the U-shaped portion of the second cable 6b hangs down to a deep position in the cable pit 20.

In the cable winding device for a large-sized rotating machine configured as described above, the first cable 6a and the second cable 6b are respectively provided in the guide grooves of the cable spool 1 as in the first embodiment. It is wound in the radial direction by stacking two of each. Further, the ground terminal boxes 4a, 4
On the b side, the height is changed so that the cable wound inside is placed at the top. Therefore, the two cables do not overlap in the U-shaped hanging part,
Wear due to cable contact can be prevented.

In the present embodiment, each of the first cable 6a and the second cable 6b is wound in the guide groove of the cable spool 1 in such a manner that two of them are radially overlapped with each other. A large number of layers may be overlapped and wound. Even in that case, the height of the ground terminal box can be changed at each side, so that the wear due to the contact of the cables can be prevented.

Embodiment 5. FIG. 7 is a side view of a cable showing another example of the cable winding device for a large rotating machine of the present invention. 8 is a sectional view taken along the line VIII-VIII in FIG. In the figure, reference numeral 8 denotes electric wires such as a plurality of power supply lines and control lines which are connected to the internal equipment of the large-sized rotating machine from the outside.
Reference numeral 9 is a heat-shrinkable tube that bundles these electric wires 8 into one cable 6. That is, in the cable 6 of the present embodiment, a predetermined number of electric wires 8 are housed in the heat-shrinkable tube 9, and heat is applied to the heat-shrinkable tube 9 to shrink it, thereby forming one cable 6. This cable 6 can be used in each of the first to fourth embodiments.

In the present embodiment, since the electric wire 8 is housed in the heat-shrinkable tube 9 and formed into one cable 6, the power supply line and the control line of other kinds of thickness can be used as in the conventional case. , A certain number of each is collected and each bundle has the same diameter, and the durability is improved as compared with the conventional one in which binding bands are tied in places at predetermined intervals,
The replacement frequency of the cable 6 is reduced.

Sixth Embodiment FIG. 9 is a sectional view of a cable showing another example of the cable winding device for a large-sized rotating machine of the present invention. In the figure, reference numeral 8 denotes electric wires such as a plurality of power supply lines and control lines which are connected to the internal equipment of the large-sized rotating machine from the outside. The electric wires 8 are arranged so as to form one row in cross section.
Reference numeral 10 is a spacer which is arranged between the electric wires 8 arranged in one row and extends along the electric wires 8.

That is, the cable 6 of this embodiment is
A predetermined number of electric wires 8 and spacers 1 arranged between the electric wires 8
0s are housed in the heat-shrinkable tube 9 so as to be alternately arranged in one row to form one flat cable 6. This cable 6 can be used in each of the first to fourth embodiments, but at that time, the main surface is in close contact with the outer peripheral surface of the cable spool 1 and the outer peripheral surfaces of the small diameter spools 2 and 12. No guide groove is formed on the outer peripheral surface of the cable spool 1 and the outer peripheral surfaces of the small-diameter spools 2 and 12.

In this embodiment, since the cable 6 is flat, it is stably wound around the outer peripheral surface of the cable spool 1 and the durability of the cable 6 is improved. Then, the cable spool 1 and the small diameter spools 2 and 12
Since it is not necessary to form a guide groove on the outer peripheral surface of, the cable spool 1 and the small diameter spools 2 and 12 can be easily manufactured, and the cost can be reduced.

Embodiment 7. FIG. 10 is a view of the surface of the main part of the cable spool showing another example of the cable winding device for a large-sized rotating machine of the present invention. FIG. 11 shows XI-XI of FIG.
It is arrow sectional drawing which follows the line. In the figure, reference numeral 11 denotes electric wires of a plurality of coaxial cables that are connected to the internal equipment of the large-sized rotating machine from the outside. Reference numeral 13 denotes a cable connector which is a first connector arranged on the outer peripheral portion of the cable spool 1. The electric wire 11 is cut at a predetermined position extending to the outer peripheral surface and connected via a cable connector 13.
The cable connector 13 is composed of a male 13b fastened to the cable spool 1 and a female 13a engaging with the male 12b.

From the position of the cable connector 13, one end of the electric wire 11 extends into the inside of the cable spool 1 and is connected to an image device, and the other end is bundled into a cable 6 from a predetermined position to form a cable 6. It is wound around spool 1. The electric wires 11 bundled into a cable 6 are then drooped downward in a U shape and then introduced into a ground terminal box provided at a predetermined position. A cable connector, which is a second connector having substantially the same structure as the cable connector 13, is provided. Via this cable connector, it is connected inside and outside the ground terminal box. Other configurations are the same as those in the first embodiment.

In general, a coaxial cable has a poor flex resistance due to its structure, and therefore has a shorter service life and a higher replacement frequency than other electric wires. And the place to be damaged is always the part that bends as the large rotating machine operates. That is, one of the portion wound around the cable spool 1 and the portion hanging down in the U-shape is damaged.

In the present embodiment, the cable connector 13 is provided at the outer peripheral portion of the cable spool 1 and the introduction portion of the ground terminal box. Therefore, if any of the electric wires 11 is damaged, the cable connector 13 on the cable spool 1 side
Wire from the cable connector to the cable connector on the ground terminal box side
Just replace 1. Therefore, the length of the electric wire 11 to be replaced can be shortened, and the cost can be reduced. In addition, replacement work becomes easy.

[0053]

In the cable winding device for a large rotating machine according to the first aspect of the present invention, the cable winding device for a large rotating machine is provided concentrically with the rotating shaft of the large rotating machine around the large rotating machine which rotates around a rotating shaft having a horizontal axis direction. The large-diameter cylindrical spool and one end connected to a large-sized rotating machine, penetrates the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, and is wound around the large-diameter spool a predetermined number of times. A first cable that hangs in a U shape in a cable pit dug below the spool, and the other end is introduced into a first ground terminal box provided in the opening of the cable pit, and one end is a large rotating machine. Connected to the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, and is positioned at a position different from the first cable in the axial direction, and the large-diameter spool is rotated a predetermined number of times in the opposite direction to the first cable. It is wound and hung in a U shape in the cable pit. It decreases, the other end and a second cable which is introduced into the second ground terminal box provided on the opening of the other end of the cable pit. Therefore, the rotational torques generated by the first cable and the second cable cancel each other out and become small. As a result, no large motors or brakes are needed.

In the cable winding device for a large rotating machine according to a second aspect of the present invention, the cable winding device for a large rotating machine is provided concentrically with the rotating shaft of the large rotating machine around the large rotating machine which rotates around a rotating shaft having a horizontal axis direction. A cylindrical large-diameter spool, and a cylindrical small-diameter spool arranged below the large-diameter spool so as to be rotatable around a rotation axis parallel to the axis of the rotation axis of the large-diameter spool, with a predetermined gap therebetween. One end is connected to a large-sized rotating machine, penetrates the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, is wound a predetermined number of times around the large-diameter spool, wraps around the small-diameter spool, and is placed below the large-diameter spool. In the dug out cable pit, a U-shaped dangle, the other end is connected to the first cable that is introduced into the first ground terminal box provided in the opening of the cable pit, and one end is connected to a large rotating machine. Penetrate the large diameter spool to Is extended to the outer peripheral surface of the reel and is wound around the large diameter spool at a different position in the axial direction from the first cable in the direction opposite to the first cable, and on the side opposite to the first cable. It is provided with a second cable that is wound around a small-diameter spool, hangs down in a U-shape in the cable pit, and the other end is introduced into a second ground terminal box provided in an opening on the opposite side of the cable pit. . Therefore, the first
The torque generated by the cable and the second cable is
They cancel each other out and become smaller. Further, the width of the cable pit can be made small regardless of the diameter of the large diameter spool.

According to another aspect of the present invention, there is provided a cable winding device for a large-sized rotating machine, which comprises a large-diameter cylindrical spool provided around a large-sized rotating machine which rotates in a horizontal direction and concentric with a rotation shaft of the large-sized rotating machine. A cylindrical small-diameter spool rotatably arranged at a predetermined distance diagonally above the large-diameter spool around a rotary shaft parallel to the axis of the rotary shaft of the large-diameter spool, and one end of which is connected to a large-sized rotating machine. , Is extended to the outer peripheral surface of the large diameter spool, wound a predetermined number of times on the large diameter spool, wound around the small diameter spool, and hangs down in a U shape to the side of the large diameter spool, and the other end is to the side of the large diameter spool. And a weight that is fixed to the cable between the small-diameter spool and the ground terminal box and that applies tension to the cable. Therefore, the space on the side of the device can be effectively used, and it is not necessary to provide a cable pit with a depth more than necessary below the large-diameter spool.

In the cable winding device for a large-sized rotating machine according to a fourth aspect, a plurality of cables are provided and are wound in a guide groove formed on the outer peripheral surfaces of the large-diameter spool and the small-diameter spool so as to be radially overlapped with each other. The overlapped and wound cables are vertically shifted so that they do not overlap each other at the U-shaped hanging portions. Therefore, the plurality of cables do not overlap each other in the portion that hangs down in a U shape, and there is an effect of preventing abrasion due to contact between the cables.

In the cable winding device for a large-sized rotating machine according to a fifth aspect of the present invention, a plurality of electric wires are housed in a heat-shrinkable tube to form a single cable. Therefore, the durability of the cable is improved and the frequency of replacing the cable is reduced.

In the cable winder for a large-sized rotating machine according to the sixth aspect, the plurality of electric wires are arranged in the heat-shrinkable tube so as to form one row in cross section, and a spacer is housed between adjacent electric wires. The cable is a flat plate having a main surface parallel to the outer peripheral surface of the large diameter spool. Therefore, the cable is stably wound around the large-diameter spool, and the durability is improved. Further, since it is not necessary to form the guide groove on the outer peripheral surface of the large-diameter spool, the manufacturing is easy and the cost can be reduced.

In the cable winding device for a large-sized rotating machine according to claim 7, the cable is formed by bundling a plurality of electric wires, and the electric wires extend to the outer peripheral surface of the large-diameter spool and the ground terminal. It is cut at the position where it is introduced into the box,
They are connected via a first connector provided on the outer peripheral surface of the large-diameter spool and a second connector provided on the ground terminal box. Therefore, when the electric wire is damaged, only the electric wire between the first connector and the second connector can be exchanged, and the cost can be reduced. Also, the work of replacing the electric wire is facilitated.

[Brief description of drawings]

FIG. 1 is a side view of a cable winding device for a large rotating machine according to the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 showing a state in which a cable is hung on the outer peripheral surface of the large-diameter spool.

FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 showing a state in which a cable is hung on the outer peripheral surface of the small diameter spool.

FIG. 4 is a side view showing another example of the cable winding device for a large-sized rotating machine of the present invention.

FIG. 5 is a side view showing another example of the cable winding device for a large-sized rotating machine of the present invention.

FIG. 6 is a side view showing another example of the cable winding device for a large-sized rotating machine of the present invention.

FIG. 7 is a side view of a cable showing another example of the cable winding device for a large-sized rotating machine of the present invention.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a sectional view of a cable showing another example of the cable winding device for a large-sized rotating machine of the present invention.

FIG. 10 is a diagram showing a surface of a main part of a cable spool showing another example of the cable winding device for a large-sized rotating machine of the present invention.

11 is a sectional view taken along the line XI-XI in FIG.

FIG. 12 is a side view of a conventional cable winding device for a large rotating machine.

[Explanation of symbols]

1 cable spool (large diameter spool), 2,12 small diameter spool, 4a 1st ground terminal box (ground terminal box),
4b Second ground terminal box (ground terminal box), 6 cables,
6a 1st cable (cable), 6b 2nd cable (cable), 7 weight, 8 and 11 electric wire, 9 heat-shrinkable tube, 10 spacer, 13 cable connector (1st connector).

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 54/02 A61N 5/10 B65H 75/34 G21K 5/00

Claims (7)

(57) [Claims] 1. A cylindrical large-diameter spool provided concentrically with the rotary shaft of the large-sized rotating machine around a large-sized rotating machine that rotates around a rotary shaft having a horizontal axis, and the large-sized one end. A cable pit that is connected to a rotating machine, extends through the large diameter spool, extends to the outer peripheral surface of the large diameter spool, is wound around the large diameter spool a predetermined number of times, and is dug below the large diameter spool. A first member that hangs in a U shape inside and the other end is provided at the opening of the cable pit
And a first cable introduced into the above ground terminal box, one end of which is connected to the large-sized rotating machine, penetrates the large-diameter spool, and extends to the outer peripheral surface of the large-diameter spool. And at different positions in the axial direction, the large-diameter spool is wound a predetermined number of times in a direction opposite to the first cable, and hangs in a U-shape in the cable pit, and the other end is located on the opposite side of the cable pit. A cable winding device for a large rotating machine, comprising: a second cable introduced into a second ground terminal box provided in the opening. 2. A cylindrical large-diameter spool provided concentrically with the rotary shaft of the large-sized rotating machine around a large-sized rotating machine that rotates around a rotary shaft whose axis direction is horizontal, and the large-diameter spool. A cylindrical small-diameter spool rotatably disposed around a rotation axis parallel to the axis of the rotation axis of the large-diameter spool below a predetermined distance, and one end of which is connected to the large-sized rotating machine, A cable that penetrates the large-diameter spool, extends to the outer peripheral surface of the large-diameter spool, is wound around the large-diameter spool a predetermined number of times, wraps around the small-diameter spool, and is dug below the large-diameter spool. A first cable that hangs in a U shape in the pit and the other end is introduced into the first ground terminal box provided in the opening of the cable pit, and one end is connected to the large-sized rotating machine, The large diameter spoo Is extended to the outer peripheral surface of the first cable, and is wound around the large-diameter spool at a different position in the axial direction from the first cable in a direction opposite to the first cable a predetermined number of times, and is opposite to the first cable. Side is wound around the small diameter spool, hangs down in the cable pit in a U shape, and the other end is introduced into a second ground terminal box provided in an opening on the opposite side of the cable pit. A cable winding device for a large rotating machine, which is provided with a cable. 3. A cylindrical large-diameter spool, which is provided around a large-sized rotating machine that rotates in the horizontal direction and is concentric with the rotating shaft of the large-sized rotating machine, and a predetermined interval is obliquely above the large-sized spool. And a cylindrical small-diameter spool rotatably arranged around a rotation axis parallel to the axis of the rotation shaft of the large-diameter spool, one end of which is connected to the large-sized rotating machine and It is extended and wound on a large diameter spool a predetermined number of times,
A cable wound around the small-diameter spool, hanging down in a U-shape to the side of the large-diameter spool, and having the other end introduced into a ground terminal box arranged laterally of the large-diameter spool; A cable winding device for a large rotating machine, comprising a weight fixed to the cable between the ground terminal boxes and applying a tension to the cable. 4. A plurality of the above-mentioned cables are provided, which are wound in a guide groove formed on the outer peripheral surfaces of the large-diameter spool and the small-diameter spool so as to be radially overlapped with each other. The cable winding device for a large rotating machine according to any one of claims 1 to 3, wherein the U-shaped hanging parts are vertically displaced so as not to overlap each other. 5. The large rotating machine according to claim 1, wherein the cable has a plurality of electric wires housed in a heat-shrinkable tube to form a single cable. Cable winding device. 6. The plurality of electric wires are arranged in the heat-shrinkable tube so as to form one row in cross section, a spacer is housed between adjacent electric wires, and the cable has an outer circumference of the large-diameter spool. The cable winding device for a large rotating machine according to claim 5, wherein the cable winding device has a flat surface having a main surface parallel to the surface. 7. The cable is formed by bundling a plurality of electric wires, and the electric wires are cut at a position extended to an outer peripheral surface of the large-diameter spool and a position introduced into the ground terminal box. The connection is made via a first connector provided on the outer peripheral surface of the large-diameter spool and a second connector provided on the ground terminal box. The cable winding device for the large rotating machine described.