JP2642292B2 - Internal cylinder removal device from NaS battery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for extracting an inner cylinder from a NaS battery used for disassembling a used NaS battery.

[0002]

2. Description of the Related Art A NaS battery is a chargeable / dischargeable battery filled with sodium inside a solid electrolyte tube and sulfur outside, and has attracted attention as a battery for power storage because of its ability to store a large amount of power. ing. However, since the life of this battery is considered to be about 10 years, it is expected that a large amount of used NaS batteries will be generated in the future. However, the processing technology of NaS batteries has not been established so far, and much less equipment for it has not been developed. Therefore, there is no prior art about the present invention.

[0003] The present inventors are currently developing a technology for treating used NaS batteries, but in the treatment of NaS batteries, while recovering sodium and sulfur that can be reused from the inside, and having a multiple structure. It has been found necessary to extract the metal inner cylinder containing sodium from the outer cylinder (solid electrolyte tube).

However, the outer cylinder and the inner cylinder both have an elongated shape, and sodium or sulfur exists between them. Extraction is impossible, especially if you want to use a robot to automatically dismantle
I learned that technical difficulties exist in this regard.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and to provide an apparatus for extracting an inner cylinder from a NaS battery which can smoothly extract the inner cylinder from an outer cylinder of the NaS battery by an automatic machine. It was completed.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an outer tube chuck for holding an outer tube of a NaS battery, and an inner tube for removing an inner tube provided opposite to the chuck. The inner tube chuck comprises a base plate, and a base plate, and a spring force applied to the base plate in both X and Y axial directions.
All SANYO and a slidably supported chuck jaws without receiving a reaction force, and the maximum of the chuck claws
The slide amount is such that the chuck jaws deviated from the center to the maximum.
Even if it is in place, closing the chuck claw ensures that the NaS battery
It is set so that it can be inserted into the inner cylinder .

[0007]

According to the apparatus for removing an inner cylinder from a waste NaS battery of the present invention, the outer cylinder of the waste NaS battery whose head has been cut in advance is held by the outer cylinder chuck, and the inner cylinder provided opposite to the chuck. The inner cylinder of the discarded NaS battery is extracted by holding the inner cylinder with the chuck. The chuck jaws of the inner cylinder chuck have the maximum slide amount limited in both X and Y axes directions on the base plate.
Since it is slidably supported in this state, even if there is misalignment at the time of removal, the chuck pawls automatically slide and the inner cylinder can be smoothly removed from the outer cylinder. Moreover, in this device, since the chuck pawl does not have an origin return means such as a spring, the chuck pawl can slide freely without receiving a reaction force due to the spring force , and the frictional resistance between the outer cylinder and the inner cylinder is reduced. Even when it is large, it is easy to pull out the inner cylinder.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 denotes a used NaS battery, and first and second inner cylinders 2 for storing sodium,
The outer cylinder 3 is shown. In the use state, there is a storage container further outside, but it is assumed that the head is cut off in advance and the storage container is removed in the previous step before being supplied to the present apparatus.

[0009] 4 is an outer cylinder chuck for holding the outer tube 3 of the NaS battery 1, is held in a pair of chucking pawls Thus the upper portion of the outer tube 3 of the NaS batteries 1 in an inverted state. Although the axis of the outer tube chuck 4 is set to be vertical, the neck may be swung by a small angle by a method such as incorporating a spherical bearing therein.

Reference numeral 6 denotes an inner tube chuck provided to face the outer tube chuck 4 for extracting the inner tube. The entire inner cylinder chuck 6 is moved up and down on the same axis as the outer cylinder chuck 4 by a vertical cylinder (not shown), and the inner cylinder 2 is pulled downward from the outer cylinder 3 of the NaS battery 1 held by the outer cylinder chuck 4. Can be. The inner tube chuck 6 includes a base plate 7 and a chuck claw 8 supported on the base plate 7 so as to be slidable in both X and Y axes.

As shown in FIG. 2, a rail 9 in the X-axis direction is provided on the upper surface of the base plate 7, and a first unit 9 slidable on the slide unit of the rail 9 in the X-axis direction.
Are supported. A rail 11 in the Y-axis direction is provided on the first slide plate 10, and a second slide plate 12 slidable in the Y-axis direction is supported on a slide unit on the rail 11. . Since the chuck claw 8 is provided on the second slide plate 12, the chuck claw 8 can slide in both the X and Y axis directions with respect to the base plate 7. However, the sliding amount is limited to, for example, about ± 3 mm. Even if the chuck claw 8 is located at a position deviated from the center to the maximum, if the chuck claw 8 is closed, the inner cylinder 2 of the NaS battery 1 is surely closed.
It can be inserted into the inside.

A chuck claw opening / closing shaft 13 hanging from the chuck claw 8 is provided with a grooved disk 15 and a pair of rollers on a link mechanism 14 provided below the base plate 7 as shown in FIGS.
The chuck pawl opening / closing shaft 13 is moved up and down by moving the link mechanism 14 by a cylinder (not shown), and the chuck pawl 8 can be opened and closed. As described above, the chuck claw 8 can slide by a small distance in both the X and Y axes directions with respect to the base plate 7. And the force is reliably transmitted to the chuck pawl opening / closing shaft 13.

The apparatus for extracting an inner cylinder from a NaS battery according to the present invention thus constructed, as shown in FIG. The chuck jaws 8 of the inner tube chuck 6 are inserted into the tube 2 from below and opened, and the inner tube 2 is pulled out downward. At this time, if the center between the outer cylinder 3 and the inner cylinder 2 is slightly displaced as described above, it becomes difficult to pull out the core.
In the present invention, since the chuck claw 8 of the inner cylinder chuck 6 can freely slide in both the X and Y axial directions with respect to the base plate 7 of the inner cylinder chuck 6, it receives a reaction force due to a spring force.
The centering is done automatically without the need for smooth pull-out. In the present invention, the maximum sliding amount of the chuck claw 8 is
If the chuck jaws are at the maximum position off the center
Even if the chuck claw is closed, the inside of the NaS battery
Is set so that it can be inserted into the
Even if there is no origin return mechanism, surely
Can be chucked.

As for the deviation (inclination) between the outer cylinder 3 and the inner cylinder 2 in the θ direction, the head is swung by a small angle by a method such as incorporating a spherical bearing inside the outer cylinder chuck 4 as described above. Can be absorbed. When the outer tube chuck 4 is fixed,
As shown in FIG. 4, by making the contact surface of the chuck claw 8 of the inner cylinder chuck 6 with the inner cylinder 2 an arc surface, the deviation in the θ direction can be absorbed.

When the inner cylinder 2 is completely pulled out of the outer cylinder 3 in this manner, the chuck claws 8 of the inner cylinder chuck 6 are in a free state. Since the chuck claw 8 does not have the home return means, it does not return to the home position. Because the range that can be slid so that it can be inserted into the inside of 2, is regulated,
There is no risk of chucking the next NaS battery 1.

[0016]

As described above, the apparatus for extracting an inner cylinder from a NaS battery according to the present invention can be operated by an automatic machine even when there is a slight misalignment between the outer cylinder and the inner cylinder of the NaS battery. The advantage is that the inner cylinder can be pulled out smoothly, especially for the spring force.
Since the chuck claws can be slid without receiving the reaction force , the inner cylinder can be easily pulled out even when the frictional resistance between the outer cylinder and the inner cylinder is large.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view showing a slide mechanism according to the embodiment of the present invention.

FIG. 3 is a side view showing a transmission mechanism according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a chuck claw having an arc cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 NaS battery 2 Inner cylinder 3 Outer cylinder 4 Outer cylinder chuck 6 Inner cylinder chuck 7 Base plate 8 Chuck claw

Claims (2)

(57) [Claims] 1. An outer cylinder chuck for holding an outer cylinder of a NaS battery, and an inner cylinder chuck provided to face the inner cylinder for removing the inner cylinder, the inner cylinder chuck comprising a base plate,
This base plate receives the reaction force of the spring force in both X and Y axis directions.
Der those comprising a slidably supported chuck jaws without kicking is, and the maximum slide of the chuck claws
When the amount of the chuck jaws is
Even if the chuck claw is closed, the inside of the NaS battery
It is set so that it can be inserted into the part
A device for removing the inner cylinder from NaS batteries. 2. The apparatus for removing an inner cylinder from a NaS battery according to claim 1, wherein the chuck claws of the inner cylinder chuck have an arc-shaped cross section.