TWI384492B - An underwater cutting device used for cutting the handle of laminated fuel sheets of mtr (material test reactor) - Google Patents

Description

MTR flake fuel lifting bottom cutting device

The invention relates to a MTR (Material Test Reactor), a sheet metal fuel lifting bottom cutting device, in particular to a method for simplifying the cutting operation, improving the processing efficiency, improving the processing quality, absorbing and filtering. The sawdust keeps the water clean and clear, and can reduce the amount of radiation received by personnel, avoiding the spread of pollution, and ensuring the radiation protection of the staff.

The MTR flaky nuclear fuel is radiative and is mainly stored in a pool of highly radioactive nuclear fuel rods. The structure of the flake fuel is as shown in the first figure, which mainly includes: fuel flakes, side panels and handles. Each group of MTR flake fuels is composed of 10 sheets of fuel sheets embedded in parallel with each other in the side plate. The size of each fuel sheet (including the sheath) is 63.55 cm × 7.05 cm. × 0.25 cm, and the number of the side sheets is etched for identification, and the two handles are bonded to the two end portions of the side sheets, so that the overall size of each group of MTR sheet fuels 5 is 100.3 cm × 7.6. Cm × 7.6cm, and its overall weight is about 5190g; because the materials are all aluminum, in order to reduce the volume and weight of fuel loading and transportation process, to reduce the cost of subsequent large fuel reprocessing, and reduce personnel acceptance Radiation dose and avoiding the spread of pollution, it is necessary to remove the handle in advance in a pool with a water depth of 6 meters or more. The side pieces of the cut fuel and the respective fuel sheets still maintain sufficient holding power, and will not be lifted. Excised or subsequent operations It is scattered or damaged.

However, at present, the above-mentioned lifting operation is slightly modified by the conventional cutting machine, so that it has basic waterproof characteristics, and is applied to the underwater cutting operation of the above-mentioned handle, since it is not a dedicated processing device, As far as the overall application is concerned, the operation procedure is complicated and not smooth, which not only increases the difficulty of the operation, but also affects the processing efficiency, and also allows the staff to receive more radiation dose.

In view of the above-mentioned shortcomings of the resection processing apparatus, the inventors have made research on the improvement of these disadvantages, and finally the present invention has been produced.

The main object of the present invention is to provide an MTR sheet fuel lifting underwater cutting device, which is a special automatic machine designed for the underwater cutting and lifting operation of the MTR sheet fuel, thereby effectively simplifying the cutting operation procedure and improving the processing efficiency. Improve processing quality, absorption and filtration of sawdust to keep the water clean and clear, and reduce the amount of radiation received by personnel to avoid the spread of pollution and ensure the radiation protection of workers.

Another object of the present invention is to provide an MTR sheet fuel lifting underwater cutting device which utilizes automated mechanical work to effectively avoid dimensional errors caused by improper operation to ensure side pieces of fuel to be cut and individual fuel pieces. There is still sufficient holding power between them, and there is no processing quality that is scattered or damaged due to the removal of the handle or other subsequent operations.

In order to achieve the above object and effect, the technical means adopted by the present invention include: a casing having an accommodating space, and a feed air cylinder is arranged in the accommodating space for driving a sliding seat to slide laterally Moving, a sawing chamber is arranged on the front side of the accommodating space; a main motor is disposed on the sliding seat and can drive a saw blade located in the sawing chamber; a positioning seat is disposed on the side of the outer casing and located In the travel path of the saw blade, a receiving groove for accommodating the MTR sheet fuel is disposed in the positioning seat.

As for the detailed construction, application principle, function and effect of the present invention, a complete understanding can be obtained by referring to the following description made with reference to the accompanying drawings.

Referring to the second to fourth figures, it can be clearly seen that the structure of the present invention mainly includes: a housing 1, a positioning base 2, a main motor 3, and a filter motor 4, wherein the housing 1 is disposed in a The base 11 has a plurality of legs 12 at an adjustable height position on the side of the base 11. The housing 1 has an accommodating space. The accommodating space is provided with a sliding seat 14 at the bottom of the sliding seat 14 A plurality of bearings 142 are disposed on the plurality of laterally disposed guide rods 141, and a feedstock pneumatic cylinder 15 is disposed between the carriage 14 and the inner wall surface of the outer casing 1, and is disposed on the front side of the accommodation space. There is a sawing chamber 13 disposed on the side of the outer casing 1 and having a receiving groove 21 for accommodating the MTR sheet fuel 5. The receiving groove 21 is disposed on the side of the sawing chamber 13 There is a notch 211, and at least one positioning seat pneumatic cylinder 22 is disposed on the side of the positioning seat 2, and a pressure pneumatic cylinder 23 is further coupled to the output shaft of the positioning seat pneumatic cylinder 22, and the pressure pneumatic cylinder 23 is The action can effectively press and fix the MTR sheet fuel 5, and the main motor 3 is disposed on the sliding seat 14, and the output portion is combined with a reduction. The gearbox 31 is protruded from the reduction gearbox 31 by an output shaft 311 in the sawing chamber 13, and a saw blade pressing plate 321 for fixing the saw blade 32 is disposed at the end of the output shaft 311, and the filter motor 4 is It is disposed on the side of the bottom of the sawing chamber 13, and can be connected to a filter frame 42 with a filter through a conduit 41.

Referring to FIG. 5, it can be seen that in the operation of the present invention, the MTR flake fuel 5 is first placed in the accommodating groove 21, and the MTR is fixed by the action of the locating cylinder 22 and the pressure pneumatic cylinder 23. The sheet fuel 5 is further driven by the main motor 3 to rotate the saw blade 32 via the reduction gear box 31, and the cutting feed pneumatic cylinder 15 also drives the slide 14 to slide, so that the saw blade 32 can be inserted through the notch 211. The accommodating groove 21 is used for sawing the MTR flake fuel 5, and the metal scrap generated during the cutting is absorbed by the filter motor 4 and introduced into the filter frame 42 via the conduit 41 to utilize the filtering therein. The mesh is filtered, and then the positioning cylinder 22 and the press cylinder 23 release the pressure of the MTR sheet fuel 5 to facilitate the removal of the cut MTR sheet fuel 5.

According to the present invention, the MTR sheet fuel 5 can be easily positioned to facilitate the cutting process, and the automatic operation can simplify the overall operation procedure, thereby reducing the processing cost and improving the work efficiency.

It can be seen from the above that the MTR sheet fuel lifting underwater cutting device of the invention has the advantages of simplifying the cutting operation procedure, improving the processing efficiency, improving the processing quality, absorbing and filtering the sawdust to keep the water clean and clear, and reducing the radiation dose of the personnel and avoiding The spread of pollution and ensuring the safety of workers' radiation protection and safety have indeed been industrially utilized, novel and progressive.

However, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

1. . . shell

11. . . Base

12. . . Feet

13. . . Sawing room

14. . . Slide

141. . . Guide rod

142. . . Bearing

15. . . Cutting feed air cylinder

2. . . Positioning seat

twenty one. . . Locating slot

211. . . gap

twenty two. . . Positioning seat cylinder

twenty three. . . Pressurized pneumatic cylinder

3. . . Main motor

31. . . Reduction gearbox

311. . . Output shaft

32. . . Saw blade

321. . . Saw blade

4. . . Filter motor

41. . . catheter

42. . . Filter grid

5. . . MTR flake fuel

The first figure is a schematic diagram of a conventional MTR sheet fuel structure.

The second drawing is a schematic view of the three-dimensional structure of the present invention.

The third figure is a combined appearance of the present invention.

The fourth figure is a schematic view of the planar structure of the present invention.

The fifth figure is a schematic view of the cutting action of the present invention.

1. . . shell

11. . . Base

12. . . Feet

13. . . Sawing room

2. . . Positioning seat

twenty one. . . Locating slot

211. . . gap

twenty two. . . Positioning seat cylinder

twenty three. . . Pressurized pneumatic cylinder

3. . . Main motor

31. . . Reduction gearbox

311. . . Output shaft

32. . . Saw blade

321. . . Saw blade

4. . . Filter motor

41. . . catheter

42. . . Filter grid

Claims (8)

An MTR sheet fuel lifting bottom cutting device comprises at least one outer casing having an accommodating space in which a feed air cylinder is provided for driving a slide laterally, and a sawing chamber is disposed on a front side of the accommodating space; a main motor is disposed on the sliding seat and can drive a saw blade located in the sawing chamber; a positioning seat is disposed on the side of the outer casing and located at the saw blade In the moving path, a receiving groove for accommodating the MTR sheet fuel is disposed in the positioning seat. The MTR sheet fuel lifting underwater cutting device according to claim 1, wherein at least one pressurizing pneumatic cylinder is disposed above the positioning seat for pressing and fixing the MTR sheet fuel. The MTR sheet fuel lifting underwater cutting device according to claim 2, wherein at least one positioning seat pneumatic cylinder is disposed beside the positioning seat, and the pressing pneumatic cylinder is driven by the positioning seat pneumatic cylinder. Lifting activities. The MTR sheet fuel lifting underwater cutting device according to claim 1, wherein a filter motor is disposed on a side of the bottom of the sawing chamber, and the filter motor can be connected to a filter screen with a filter through a conduit. frame. The MTR sheet fuel lifting underwater cutting device according to claim 1, wherein the output portion of the main motor is coupled to a reduction gear box, and the reduction gear box protrudes from the sawing chamber with an output shaft. And a saw blade pressing plate for fixing the saw blade is arranged at the end of the output shaft. The MTR sheet fuel lifting underwater cutting device according to the first aspect of the patent application, wherein the bottom of the sliding seat is provided with a plurality of bearings, which can be fitted on a plurality of laterally disposed guiding rods. The MTR sheet fuel lifting underwater cutting device according to claim 1, wherein the outer casing is disposed on a base, and the base side of the base is provided with a plurality of adjustable legs. The MTR sheet fuel lifting underwater cutting device according to the first aspect of the invention, wherein the accommodating groove of the positioning seat is provided with a notch on a side of the sawing chamber for the saw blade to extend.