KR20050051749A - Remote ram operating device of fuel exchange machine - Google Patents

Abstract

The present invention relates to a nuclear fuel exchanger remote ram drive, the object of which is remotely adjustable, the operating force (force) is adjustable, and through the insertion into the correct position, the ram drive unit without affecting the peripheral device of the fuel exchanger It provides a nuclear fuel exchanger remote ram drive that is operated to reach.

The present invention relates to a ram drive device for inserting / combining a ram drive insert portion and a clutch drive insert portion of a ram drive gearbox assembly located at a rear end of a nuclear fuel exchanger to operate a ram drive shaft of a nuclear fuel exchanger; The ram drive device includes a drive member which is inserted into the ram drive insert portion and the clutch drive insert portion, respectively, and is driven by a motor, and a ram member and a clutch drive portion are integrally installed, and fixed by a parallelogram link structure fixed to the lower end of the drive member. And a tilt member for holding and moving the member in a vertical state, and a mast member installed at the bottom of the tilt member and vertically moving the driving member and the tilt member and supported by contact with the bottom surface. The present invention provides a nuclear fuel exchanger remote ram driving device capable of driving an exchanger ram.

Description

Remote RAM Operating Device of Fuel Exchange Machine

The present invention relates to a nuclear fuel exchanger remote ram drive device, the nuclear fuel exchange operation in the pressurized water reactor is automatically operated by the remote fuel exchanger, and in the state that the Callandria and the ram head connected during automatic operation, other If the fuel exchanger does not operate automatically due to the problem of the fuel exchanger, remove the concrete plug from the basement basement floor of the reactor and insert it through the plug hole to remotely operate the fuel exchanger's ram drive to separate the fuel exchanger. It relates to a ram drive.

In general, pressurized heavy water reactors are reactors using heavy water as coolant and moderator, and natural uranium (U-235 ratio) is not concentrated, unlike light water reactors (pressure and boiling water reactors) that use 2-5% low enriched uranium. Heavy water used as a coolant and moderator absorbs less neutrons (ie, less neutron losses) than conventional water, allowing the design of reactors using natural uranium. However, since the use of natural uranium has a characteristic that it is difficult to maintain a critical state after the reactor has been operated for a certain period of time, there is a problem that the supply of new fuel is frequently made.

However, if the reactor is shut down every time the fuel is replaced, such as in a light water reactor, the operation rate is inevitably deteriorated. Therefore, a unique reactor design was devised so that the fuel exchanger could exchange fuel even during power operation. On-power refueling has some aspects of operation, but it has the advantage of increasing the operation rate because the plant does not need to shut down the plant for nuclear fuel exchange.

Pressurized deuterium reactors are generally cylindrical, called Calandria, which are installed in the horizontal direction, and hundreds of pressure tubes, each 10 cm in diameter, also penetrate the horizontal direction. Is supplied in the pressure tube in the form of a fuel bundle, and is usually configured to supply 12 nuclear fuel assemblies in one pressure tube.

As described above, the nuclear fuel exchanger used for nuclear fuel exchange includes a magazine unit capable of storing a calanderia pressure tube plug and the like including a fuel assembly at one end and a fuel inserting / removing fuel as shown in FIGS. 19 and 20. The ram assembly is selected and operated through a plurality of gears, such as helical gears and worm gears, by means of a drive such as a hydraulic motor, so that the ram shaft can be connected and fixed / separated from the calandria pressure tube. The plug that blocks the pressure tube can be dismantled / installed and the fuel can be inserted / removed by ram drive.

However, the fuel exchanger is to hold the Calandria pressure tube and replace the fuel by means of a separate position moving drive means and a plurality of gear operations, so that in case of component defects and machine defects, that is, the driving force is transferred to the fuel exchanger. If it is not delivered, the Calandria pressure line will be grasped and stopped.

Conventionally, when an abnormality occurs in the above-described fuel exchanger, the plug hole formed at the bottom of the reactor front is removed, and the fuel exchanger is operated manually by the fuel exchanger in the basement under the plug hole through the plug hole. Was separated. That is, hex sockets and clutch drive rotary tools, which are ram drive work tools, are installed at the top of the ram drive insert and clutch drive insert of the ram drive gearbox assembly located at the rear end of the fuel exchanger ram assembly. After insertion, it was manually rotated to separate the Clandria pressure tube and the fuel exchanger held by the abnormality of the fuel exchanger.

However, in order to separate the Calandria pressure tube and the fuel exchanger by inserting a ram drive tool into the ram drive gearbox assembly, first, a clutch drive for releasing the connection between the hydraulic drive means and the ram drive shaft of the fuel exchanger and In addition, the helical gear of the ram drive shaft and the helical gear of the ram drive insert must be engaged with each other, and there is a ram drive having a dual axis structure for driving the helical gear.

In addition, the separation operation as described above, considering that the height from the basement to the calandria is about 10 to 16 m, it is difficult for the user to accurately insert the ram drive work tool into the ram drive gearbox assembly with the naked eye.

In addition, the ram drive insert and the clutch drive insert of the ram drive gearbox assembly are installed at different positions and heights in the lower part of the exchanger, and it is difficult to determine the correct position every time when each tool is replaced as needed. In the case of manual operation, it could not be processed in one operation.

In addition, the manual operation of the fuel changer takes up to about 80 feet-pounds of force, which incurs the inconvenience of having multiple workers working at the same time. There is a risk of equipment damage and failure due to collision between the work tool and the fuel exchanger. There were various problems.

The present invention has been made in consideration of the above problems, the object of which is remotely adjustable, operating force (force) can be adjusted, nuclear fuel exchanger remote ram drive that can protect the device through the insertion into the correct position To provide.

Another object of the present invention is to quickly separate the fuel exchanger from the Calandria pressure tube, thereby smoothing the fuel replacement operation, and increasing the working efficiency by reducing the working time.

In addition, another object of the present invention is to promote the safety of the worker through the remote operation.

1 is an exemplary view showing an overall configuration according to the present invention, Figure 2 is an exemplary view showing a schematic configuration according to the present invention, the present invention is a ram drive gearbox located at the rear end of the nuclear fuel exchanger 800 A driving member 100 inserted into the assembly 810 and coupled thereto, a tilt member 200 installed at a lower end of the driving member 100 to horizontally move the driving member 100 in a vertical state, and the tilt member ( 200 is installed at the bottom of the drive member 100 and the tilt member 200 is moved up and down and consists of a mast member 300 for supporting it on the basement bottom surface.

The drive member 100 is coupled to the ram drive insert 811 and the clutch drive insert 816 of the ram drive gearbox assembly, as shown in Figure 3, the ram drive insert of the ram drive gearbox assembly Ram drive unit 110 is inserted into the coupling portion coupled to the clutch drive insertion portion 816 is composed of a clutch drive unit 160 is coupled.

As shown in FIG. 4, the ram driver 110 operates the helical gear drive tool by a helical drive motor to engage the helical gear of the ram drive gearbox assembly with the helical gear installed on the fuel exchanger ram drive shaft. The ram drive shaft is operated by a motor to operate the helical gear to operate the ram shaft of the nuclear fuel exchanger.

That is, the ram drive unit 110 of the present invention is composed of helical gear moving means for moving the helical gear of the ram drive gearbox assembly, and helical gear driving means for driving the helical gear.

The helical gear moving unit includes a helical gear connection drive motor 111 installed at one side of the fixed bracket upper end, a motor shaft gear 112 connected coaxially with the shaft of the helical gear connection drive motor, and the motor shaft gear 112. Rotating gear 113 is meshed with, a second pipe (114b) is integrally fixed / installed on the lower end of the rotary gear 113, the holder 115 is integrally installed on the upper end of the second pipe, A third bearing housing 116c bearing the upper end of the holder 115 and a bearing; a second bearing housing 116b screwed to the upper end of the third bearing housing; and a first fixedly coupled to the upper end of the second bearing housing. A helical gear connecting drive tool 117 penetrating through the bearing housing 116a, the first and second bearing housings 116a, b, c, and having a lower end inserted into the upper end of the holder 115; The bearing housing 116c and the upper end are combined and Is composed of the fixing bracket 118, the first pipe (114a) and the first pipe (114a) fixedly installed and rotates gear 113 and the bearing support rotating gear bearing housing 119 is in the bottom of which is fixed to.

In addition, the helical gear driving means is a ram driving motor 120 which is installed under the fixed bracket 118, the ram driving shaft is installed coaxially with the shaft of the ram driving motor 120 and located in the second pipe (114b). And a ram drive tool 122 coupled to an upper end of the ram drive shaft 121 and installed through the helical gear drive tool 117.

As shown in FIG. 5, the helical gear connecting drive tool 117 has an outer surface having a hexagonal column shape, and an upper end of the holder 115 into which the lower end of the helical gear connecting drive tool is inserted is also illustrated. It has a hexagonal groove shape corresponding thereto as shown in FIG. In addition, the hexagonal groove depth of the holder 115 is formed deeper than the length of the hexagonal column of the helical gear connecting drive tool 117. That is, the helical gear connecting drive tool 117 and the holder 115 is movable up and down by such a hexagonal surface coupling, it is to be rotated integrally when rotating. In addition, the helical gear connecting drive tool and the holder does not necessarily need to be a hexagonal surface coupling, it may be made of a multi-faceted or keyway coupling structure so that the vertical movement is possible and the rotational force is transmitted.

In addition, a first shock absorbing spring 123a is installed between the helical gear connecting drive tool 117 and the second bearing housing 116b, and the helical gear connection is located above and below the first shock absorbing spring 123a. A plurality of bearings are installed between the drive tool 117 and the second bearing housing 116b. In addition, the helical gear connecting drive tool 117 is provided with a snap ring 124 to be positioned above the first shock absorbing spring 123a. That is, the first shock absorbing spring 123a is installed between the snap ring 124 installed on the helical gear connecting drive tool 117 and the bearing installed on the lower end of the second bearing housing 116b.

The first shock absorbing spring 123a installed as described above relieves the impact caused by contact when the helical gear connection drive tool 117 is inserted into the ram drive insert 811 of the ram drive gearbox assembly. When the drive shaft 815 is rotated, the helical gear 812 and the helical gear connecting drive shaft 815 are moved upward by the screws formed on the helical gear connecting drive shaft 815, and at this time, the helical gear connecting driving tool that was spring-buffered ( 117 is also moved upwards so that the helical gear connecting drive tool 117 and the helical gear connecting drive shaft 815 are transmitted without rotational force.

The ram drive tool 122 is inserted into the ram drive insert 811 of the ram drive gearbox assembly to drive the ram shaft 813 of the nuclear fuel exchanger by rotating the helical gear 812. It is installed through the 117, the insertion portion 122a is formed in the upper center is inserted into the drive shaft 814 of the helical gear, the laser 122b is installed in the lower center of the insertion portion 122a, the lower end Is connected to the ram drive shaft 121 by a ram drive shaft coupling coupling 125 located in the holder 115. At this time, the lower outer surface of the ram driving tool 122 inserted into the ram drive shaft coupling coupling 125 is formed with a plurality of irregularities 122c in the longitudinal direction, as shown in FIG. As shown in FIG. 8, a sawtooth-shaped groove 125a having a plurality of irregularities is formed in the center of the upper end of the drive shaft coupling coupling 125. That is, the ram drive tool is movable up and down by the combination of the plurality of recesses and protrusions 122c and the groove 125a formed in the longitudinal direction, such as the relationship between the helical gear drive tool and the holder, and is rotated integrally when rotating have.

The ram drive shaft 121 has an upper end integrally coupled to the ram drive shaft coupling coupling 125, and a lower end is integrally connected to the ram drive motor 120 by a ram drive shaft coupling 126. The shaft of the tool 122, the ram drive shaft 121, and the ram drive motor 120 has a coaxial axis.

In addition, the helical gear connection drive tool 117 is coupled to the helical gear connection drive shaft 815 located in the ram drive insert 811 of the ram drive gearbox assembly at the top as shown in FIG. 117a is formed, and an insertion part insertion groove 117b into which the insertion part 122a of the ram drive tool is inserted is formed below the coupling groove 117a, and a bearing insertion groove into which a plurality of bearings are inserted. 117c is formed. At this time, the coupling groove 117a, the insertion portion insertion groove 117b and the bearing insertion groove 117c have a coaxial.

That is, the ram drive tool 122 is inserted into the center of the helical gear connecting drive tool 117, and a plurality of bearings are installed in the bearing insertion groove 117c, and the ram drive is located below the bearing. A fixing ring 122d is installed in the tool 122. In addition, a second buffer spring 123b is installed in a space between the fixing ring 122d and the ram drive shaft coupling coupling 125 (inside the lower end of the ram drive tool having a plurality of irregularities formed in a longitudinal direction on an outer surface thereof). have.

When the ram driving tool 122 is inserted into the ram driving insert 811 of the ram drive gearbox assembly, the second shock absorbing spring 123b mitigates an impact caused by contact with the helical gear connecting drive shaft 815. When the ram drive tool 122 is operated, the ram drive tool 122 is moved upward by elasticity to smoothly operate the helical gear 812.

In addition, the helical gear connection drive motor 111 and the ram drive motor 120 are protected by respective covers.

The ram drive unit 110 configured as described above operates a motor shaft gear and a rotary gear by driving the helical gear connection drive motor 111, and a second pipe and a holder rotate by the operation of the rotary gear, and the holder The helical gear connection drive tool 117 is rotated by the rotation of. In addition, the driving force of the ram drive motor is transmitted to the ram drive shaft and the ram drive tool through the coupling to operate the ram drive tool.

The clutch drive unit 160 is inserted into the clutch drive inserting unit 816 of the ram drive gearbox assembly to drive the clutch of the ram drive gearbox assembly 810, and is integrally formed with the ram drive unit 110. It rotates about the ram drive part 110, and rotates the rotating tool 175, moving up and down vertically.

That is, as shown in FIG. 9, the clutch driving unit 160 is meshed with one side of the central gear 161 integrally coupled to the outer surface of the first pipe 114a of the ram driving unit and one side of the central gear 161. A pinion gear 162, a rotation motor 163 for driving the pinion gear 162, a rotation plate 164 bearing the center gear 161 and the pinion gear 162 and the rotation motor 163 is fixed. And a support sleeve 166 on which the lower end is fixed to the other side of the rotating plate 164 on which the rotary motor 163 is installed, and the upper end is connected / supported to the ram drive unit 110 by the connecting bracket 165. The driving nut guide 167 is integrally installed on the inner surface of the lower end of the sleeve 166, the driving nut 168 coupled to both sides of the driving nut guide 167, and the driving nut guide 167 is installed at the center of the driving nut guide 167. When the driving screw 169 connected to the nut 168 and the driving screw 169 are operated. The up and down transfer motor 170, the driving nut 168 is coupled to the upper and lower conveying sleeve 171 integrally with the lower inner surface, and the motor fixing holder 172 is coupled to the upper end of the upper and lower conveying sleeve 171. And a clutch drive motor 173 integrally installed at a lower end of the motor fixing holder 172, and a rotary tool drive shaft connected to the shaft of the clutch driving motor 173 and bearing-supported to the motor fixing holder 172. 174 and a rotary tool 175 integrally installed on an upper end of the rotary tool drive shaft 174, and the entire clutch drive unit 160 rotates about the ram drive unit 110 by the rotary motor 163. The vertical conveying sleeve 171 integrated with the rotary tool 175 is vertically moved by the vertical conveying motor 170, and the rotary tool 175 is rotated by the clutch driving motor 173 to ram drive gearbox assembly. Configured to drive the clutch of 810. .

The upper and lower driving nut guide 167 guides the driving nut 168 when the driving screw 169 operates. As shown in FIG. 10, the base 167a is integrally installed on the lower inner surface of the support sleeve 166. ), A guide stand 167b installed in parallel to both sides of the upper end of the base 167a to guide the driving nut 168, and a support groove 167d formed at the center connecting the upper end of the guide stand 167b. It is composed of a support (167c) for supporting the upper end of the drive screw (169).

The drive nut 168 is moved along the guide bar 167b of the up and down drive nut guide by the operation of the drive screw 169, and is integrally installed on the bottom inner surface of the up and down transfer sleeve 171, as shown in FIG. As described above, guide grooves 168a are formed at both sides of the guide bars 167b.

That is, in the driving nut 168, the guide grooves 168a formed at both ends are inserted into the guide bars 167b of the driving nut guide when the driving screw 169 is operated by the driving motor 173. It is moved up and down along the guide stand 167b of the up and down drive nut guide without rotating, thereby moving the up and down conveying sleeve 171.

The rotary tool drive shaft 174 is integrally connected to the shaft of the drive motor 173 to transfer the driving force of the drive motor 173 directly to the rotary tool 175, the clutch drive insert of the ram drive gearbox assembly ( When the clutch drive unit 160 is inserted into the 816, a rotary tool center observation camera 177 for observing the position of the rotary tool 175 is provided therein.

The rotary tool 175 is inserted into and supported outside the clutch drive inserting portion 816 of the ram drive gearbox assembly, and as shown in FIG. 12, a hook rotating rod 175a coupled to the clutch drive shaft therein to rotate it. This is installed to operate the clutch drive shaft 817 coupled with the clutch drive inserting portion 816.

The upper and lower conveying sleeve 171 transmits the moving force of the driving nut 168 to the motor fixing holder 172, and has a shape as shown in FIG. 13, and the lower end thereof is fixed to the driving nut 168. The upper end is fixed / connected to the motor fixing holder 172.

The clutch driving unit 160 configured as described above is integrally connected to the ram driving unit 110 and integrally formed with the clutch driving unit rotating unit for rotating the clutch driving unit 160 around the ram driving unit 110 and the clutch driving unit rotating unit. And vertical rotation means for vertically moving the clutch drive rotary tool 175 and rotary tool operation means for rotating / operating the rotary tool 175.

In addition, the upper end of the ram driving unit 110 and the clutch driving unit 160 is connected by a connecting bracket 165, the connecting bracket 165 is the operation of the clutch driving unit 160 and the operation of the ram driving unit 110. In order to improve the bearing capacity from the moment of the bit rim, the second bearing housing of the ram driving part is inserted into the ram driving part connecting groove formed at one side, and the upper end of the support sleeve is inserted into the clutch driving part connecting groove formed at the other side. The ram drive tool observation camera 176 for observing the position of the ram drive tool is installed.

That is, the ram driving unit 110 and the clutch driving unit 160 are connected to the lower portion of the ram driving unit to fix the center gear 161 of the clutch driving unit to the first pipe 114a by screwing, and connecting bracket 165. The upper part is connected to each other by.

The tilt member 200 is to adjust the position of the ram driving member 100, to move the ram driving member 100 installed on the upper end by a parallelogram link structure to maintain a vertical state within a certain radius range. It is.

That is, the tilt member 200, as shown in Figure 14, the lower end of the ram driving member 100 and the upper end of the parallelogram link 210 is fixedly installed, installed on the lower link portion 210 And an operating unit 220 for supporting and operating the link unit, and a rotating unit 230 for rotating the integrated link unit 210 and the operating unit 220.

The link unit 210 has an upper bracket 213 fixed to a lower portion of the fixing bracket 118 of the ram driving member 100, and first and second links 211 and 212 having an upper end hinged to the upper bracket 211. And lower brackets 214 hinged to lower ends of the first and second links 211 and 212, and the first and second links 211 and 212 hinged to the upper and lower brackets 213 and 214 are parallel to each other. The upper surface of the upper bracket 213 coupled to the fixing bracket 118 of the ram driving member 100 is horizontal.

The operation unit 220 is a square pillar main frame 221 fixed to the lower bracket 214 of the link unit 210, the ball is located in the square pillar main frame 221 and both ends bearing supported by a bearing bracket A screw 222, a nut bracket 223 coupled to the ball screw 222, one end of the nut bracket 223 is hinged and the second link 212 of the link portion by the rod bracket 224a A tilt rod 224 having the other end hinged thereto, a tilt driving motor 225 coupled to the ball screw 222 and installed in the square pillar main frame 221 by a motor bracket, and the square pillar The main frame 221 is composed of a main frame fixing bracket 226 is installed at the bottom.

As shown in FIG. 15, the rectangular pillar main frame 221 has a rectangular cross section, and guide grooves protrude from one side of the nut bracket 223 hinged to the tilt rod 224 on an outer surface thereof. 221a) is formed in the longitudinal direction.

The rotating unit 230 is fixed to the upper end of the mast member 300 to rotate (rotate) the tilt member 200, as shown in Figure 16, installed on the lower end of the main frame fixing bracket 226 of the operating unit A fan housing 231, a fan center gear 232 bearing supported in the fan housing 231, and a fan drive gear bearing one side of the fan center gear 232 and bearing in the fan housing 231. 233, a fan driving motor 234 that operates the fan driving gear 233 and is fixed to the main frame fixing bracket 226, and is connected to the fan center gear 232 and placed on the top of the mast member 300. It is composed of a mast fixing holder 235 is fixed integrally.

17 is a view illustrating an operating state of the tilt member according to the present invention. The tilt member 200 configured as described above operates the ball screw 222 by the operation of the tilt driving motor 225, and the ball screw ( The nut bracket 223 is moved up and down by the operation of the 222, and the tip of the tilt rod 224 connected thereto is moved up and down by the movement of the nut bracket 223, so that a second movement is performed in the linear motion of the tilt rod 224. The link 212 rotates about the hinge coupling part (part connected with the upper and lower fixing brackets). At this time, the first link 211 is also rotated.

By this operation, the ram driving member 100 is moved around the square pillar main frame 221 within the range of the length of the first and second links 211 and 212.

In addition, since the tilt member 200 is rotated about the mast member 300 by the rotating unit 230, the ram driving member 100 has a radius of the length of the first and second links 211 and 212 as a radius. It is possible to move the position within.

At this time, the length of the first and second links is determined in consideration of the position and the operating force of the plurality of plug holes are formed. That is, since the plug hole formed at the bottom of the front of the reactor is formed with a center distance of about 102 cm, when the length of the first and second links is about 40 to 60 cm in consideration of this, the blind spot due to the distance of the plug hole is considered. If the length is too long (moving distance by the link part is too long), the working force is not sufficiently transmitted due to the weakening of the bearing capacity.

The mast member 300 moves up and down and supports the ram driving member 100 and the tilt member 200. As shown in FIGS. 1, 2, and 18, the mast member 300 is connected to the tilt member 200. It is composed of a mast portion 310 and the horizontal adjustment portion 320 for fixing / supporting the mast portion 310 and in contact with the basement bottom surface 900 to adjust the horizontal.

The mast portion 310 has a multiple coupling structure in which a plurality of links having different diameters are coupled, and the plurality of links are sequentially raised by the driving force of the motor. Since the structure of such a mast portion is already known as in Patent Registration 10-0235184, a detailed description thereof will be omitted.

The horizontal adjustment unit 320 is to support the mast portion 310, the base frame 321 is fixed to the bottom of the mast portion and a plurality of moving wheels are installed on the bottom surface, and integrally in the outermost link of the mast portion A support bracket 322 is formed, a plurality of supports 323, one end of which is fixed to the support bracket 322 and the other end of which is fixed to the base frame 321, and connected to the base frame 321 and transported It is composed of a plurality of contacts 324 moved downward by the means and in close contact with the basement floor. The transfer means uses a screw, a hydraulic cylinder and the like.

That is, the horizontal adjustment unit 320 is a plurality of contact table 324 is connected to the base frame 321 is in close contact / contact with the basement floor surface 900 so that the movement is controlled (to fix the position) By adjusting the level of the horizontal adjusting unit 320, the mast 300 is perpendicular to the ground.

19 is an exemplary view showing the installation state of the present invention, the present invention configured as described above is abnormal in the fuel exchanger during the fuel assembly exchange in the calandria pressure tube is not separated from the fuel exchanger from the calandria pressure tube. If not, move the present invention to the lower part of the plug hole closest to the position of the stationary fuel exchanger to fix the position by the horizontal adjustment part, and the plug hole from which the tilt member and the ram driving member are removed by the mast part. Upwards (fuel exchanger direction).

At this time, when the position of the ram drive gearbox assembly located at the rear end of the fuel exchanger is not located in a straight line, the position of the ram driving member is adjusted by the operating part and the rotating part of the tilt member, and the position of the ram driving member is The ram drive member is raised by the mast member until it is close to the position of the ram drive gearbox assembly.

As such, when the position of the ram drive member approaches the position of the ram drive gearbox assembly, the ram drive portion and the clutch drive portion of the ram drive member may be inserted / coupled to the ram drive insert portion and the clutch drive insert portion of the ram drive gear box assembly. The clutch drive unit rotates the clutch drive unit around the ram drive unit by the clutch drive unit rotating motor to adjust the position of the ram drive unit and the clutch drive unit to correspond to the ram drive insert unit and the clutch drive insert unit, respectively.

When the ram driving member is raised by the mast member according to the position adjustment of the clutch driving unit as described above, the ram driving unit of the ram driving member is inserted into the ram driving insert. In this case, the position of the helical gear connection driving tool of the ram driving unit may be adjusted by observing the laser light, which is formed at the lower end of the helical gear driving shaft, of the laser light installed in the ram driving tool with an observation camera installed in the connecting bracket.

When the ram drive unit is inserted into the ram drive insert, the clutch drive rotary tool is lifted by the vertical drive motor of the clutch drive and inserted into the clutch drive insert. At this time, the position of the rotary tool inserted into the clutch drive insert by the tool-centric observation camera installed in the rotary tool drive shaft is to observe and adjust.

As described above, when the ram drive member is inserted into the ram drive insert and the clutch drive insert of the ram drive gearbox assembly, the rotary tool is first operated by the clutch drive motor to operate the clutch of the ram drive gearbox assembly. The driving force of the nuclear fuel exchanger (the driving force for moving the ram shaft) is released. When the ram drive power of the nuclear fuel exchanger is released by the operation of the clutch, the helical gear of the ram drive gearbox assembly is moved by the operation of the helical connection drive motor of the ram drive unit and engaged with the helical gear installed on the fuel exchanger ramshaft, and the ram drive motor The ram drive shaft is operated to operate the helical gear engaged with the fuel exchanger ram shaft, thereby operating the ram shaft of the fuel exchanger.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As such, the present invention can separate / adjust the calandria pressure tube and the nuclear fuel exchanger at a remote location when an abnormality occurs in the nuclear fuel exchanger, thereby protecting the safety of the worker, and increasing the work efficiency by shortening the working time and improving accuracy.

In addition, since it is operated by a motor, it is possible to finely adjust the operating force, thereby not overwhelming the fuel exchanger, and responding to the collision with the fuel exchanger due to the correct position insertion, thereby prolonging the life of the device. .

1 is an exemplary view showing the overall configuration according to the present invention

2 is an exemplary view showing a schematic configuration according to the present invention

3 is an exemplary view showing a configuration of a driving member according to the present invention

4 is an exemplary view showing a configuration of a driving member ram driving unit according to the present invention;

5 is an exemplary view of a helical gear connection driving tool of the ram driving unit according to the present invention;

6 is an exemplary view of a holder of a ram driving unit according to the present invention

7 is an illustration of a ram driving tool of the ram driving unit according to the present invention;

Figure 8 is an illustration of the ram drive shaft connection coupling ram drive unit according to the present invention

9 is an exemplary view showing a configuration of a drive member clutch drive unit according to the present invention;

10 is a view illustrating a driving nut guide of a clutch driving unit according to the present invention;

11 is a view illustrating a driving nut of a clutch driving unit according to the present invention;

12 is an illustration of a rotary tool of the clutch drive unit according to the present invention;

Figure 13 is an illustration of the vertical conveying sleeve of the clutch drive unit according to the present invention

14 is an exemplary view showing a configuration of a tilt member according to the present invention

Figure 15 is an illustration of a square pillar main frame of the tilt member according to the present invention

16 is a schematic view showing a configuration of a rotating part of the tilt member according to the present invention

17 is an exemplary view showing an operating state of the tilt member according to the present invention.

18 is an exemplary view showing a configuration of a driving mast member according to the present invention.

19 is an exemplary view showing an installation state of the present invention.

20 is an exemplary view showing the configuration of a nuclear fuel exchanger;

* Explanation of symbols for main parts of the drawings

100: driving member 110: ram driving unit

(111): Helical gear connection drive motor (112): Motor shaft gear

113: rotary gear 114a: first pipe

114b: second pipe 115: holder

116a: first bearing housing 116b: second bearing housing

116c: third bearing housing 117: helical gear connection drive tool

(117a): coupling groove (117b): insertion groove

(117c): Bearing insert groove (118): Fixed bracket

(119): rotary gear bearing housing 120: ram drive motor

(121): ram drive shaft (122): ram drive tool

122a: inserting portion 122b: laser

(122c): Unevenness (122d): Retaining ring

123a: first buffer spring 123b: second buffer spring

(124): Snap ring (125): Ram drive shaft coupling

(125a): groove (126): ram drive shaft coupling

160: clutch drive unit 161: center gear

(162): Pinion Gear (163): Rotary Motor

(164): rotating plate (165): connecting bracket

(166): Supporting sleeve (167): Drive nut guide

(167a): Base 167b: Guide Stand

(167c): support (167d): support groove

(168): Drive nut (168a): Guide groove

(169): drive screw (170): up and down feed motor

(171): Up and down conveying sleeve (172): Holder for fixing the motor

(173): clutch drive motor (174): rotary tool drive shaft

(175): rotary tool (175a): hanging rod

176: Camera 177: Camera

200: tilt member 210: link portion

211: first link 212: second link

(213): Upper bracket (214): Lower bracket

220: operating unit 221: square pillar main frame

(221a): Guide groove (222): Ball screw

(223): Nut Bracket 224: Tilt Rod

(224a): Tilt rod bracket (225): Tilt drive motor

(226): main frame fixing bracket (230): rotating part

(231): Fan Housing (232): Fan Center Gear

233: Fan Drive Gear 234: Fan Drive Motor

(235): mast fixing holder (300): mast member

(310): mast portion (320): horizontal adjustment portion

321: base frame 322: support bracket

(323): support 324: contact

(700): Reactor front bottom (710): Plug hole

(800): nuclear fuel exchanger

810 Ramride Gearbox Assembly

Ram drive insert 812: Helical gear

(813): fuel exchanger ram shaft (814): helical gear drive shaft

815: helical gear entry drive shaft 816: clutch drive insert

(817): Clutch Drive Shaft 818: Motor

(819): Helical Gear 900: Basement Floor

Claims (9)

A ram drive device for inserting / combining a ram drive insert portion and a clutch drive insert portion of a ram drive gearbox assembly located at a rear end of a nuclear fuel changer to operate a ram shaft of a nuclear fuel changer; The ram drive device includes: a drive member integrally inserted into the ram drive insert and the clutch drive insert, the ram drive and the clutch drive being integrally operated by a motor; A tilt member fixed to the lower end of the driving member and moving and maintaining the driving member in a vertical state by a parallelogram link structure; It is installed at the lower end of the tilt member and comprises a mast member for moving the drive member and the tilt member vertically up and down and in contact with the bottom surface, to drive the ram drive shaft of the nuclear fuel exchanger in a remote location Remote ram drive. The method of claim 1; The ram drive unit is operated by a motor to drive the helical gear connecting drive tool for engaging the helical gear in the ram drive insert with the helical gear of the fuel exchanger ram shaft, and the drive shaft of the moved / matched helical gear by the motor to change the fuel exchanger. A nuclear fuel exchanger remote ram drive device, characterized in that the ram drive tool for rotating the ram shaft of the dual shaft structure. The method of claim 1 or 2; The ram driving unit and the helical gear connection drive motor installed on one side of the fixed bracket upper end, A motor shaft gear connected coaxially with the shaft of the helical gear connection drive motor; A rotary gear meshed with the motor shaft gear; A second pipe to which the rotary gear is integrally fixed / installed at the bottom; A holder integrally installed on an upper end of the second pipe, First, second and third bearing housings bearing supported and connected to an upper end of the holder; A helical gear connecting drive tool penetrating the inside of the first, second and third bearing housings and having a lower end inserted into the upper part of the holder; A first pipe having an upper end coupled to the third bearing housing and having a lower end fixed to the fixing bracket; A rotating gear bearing housing fixed in the lower end of the first pipe and supported by the rotating gear and the bearing; A ram driving motor installed under the fixed bracket, A ram drive shaft installed coaxially with the axis of the ram drive motor and positioned in the second pipe; And a ram drive tool coupled to an upper end of the ram drive shaft and installed through a helical gear connection drive tool. The method of claim 1; The clutch driving unit is integrally connected to the ram driving unit to rotate the clutch driving unit rotating the clutch driving unit about the ram driving unit; A rotary tool vertical transfer means formed integrally with the clutch drive rotation means and vertically moving the clutch drive rotary tool; The rotary tool is moved up and down by the vertical transfer means, consisting of a rotary tool operating means for rotating / operating the rotary tool installed on the top, A nuclear fuel exchanger remote ram drive comprising driving a clutch of a ram drive gearbox assembly. The method of claim 4; The clutch drive unit rotating means includes a central gear integrally coupled to the first pipe outer surface of the ram drive unit; A pinion gear meshed with one side of the center gear; A rotary motor for driving the pinion gear; A rotating plate to which the center gear and pinion gear are bearing-supported, the rotating motor is fixed, and the rotary tool vertical transfer means is connected and installed; The rotary tool vertical transfer means is a lower end is fixed to the rotating plate of the clutch drive unit rotation means and the upper end is a support sleeve that is connected / supported by the ram drive unit by a connecting bracket; A driving nut guide integrally installed on an inner surface of the lower end of the support sleeve; A driving nut coupled to both sides of the driving nut guide; A driving screw installed at the driving nut guide center and connected to the driving nut; Up and down transfer motor for operating the drive screw, Up and down conveying sleeve that the driving nut is integrally coupled to the lower inner surface, A nuclear fuel exchanger remote ram drive device, characterized in that consisting of a motor fixing holder coupled to the upper and lower transfer sleeve and connected to the rotary tool operating means. The method of claim 4; The rotary tool operation means and the clutch drive motor is integrally installed at the bottom of the holder for fixing the motor; A rotary tool drive shaft connected to the clutch drive motor shaft and supported by a holder for fixing a motor; A nuclear fuel exchanger remote ram drive, characterized in that consisting of a rotary tool integrally installed on the top of the rotary tool drive shaft. The method of claim 1; The tilt member is a parallelogram link portion is fixed to the upper end is installed on the lower end of the ram driving member; An operation part installed at a lower end of the link part to support the link part and to operate the link part by a motor and a ball screw; The link unit and the upper bracket is fixed to the lower end of the fixing bracket of the ram drive member, First and second links hinged at an upper end to the upper bracket, The first and second links, the lower end is hinged and is composed of a lower bracket coupled to the operating portion at the bottom, The first and second links hinged to the upper and lower brackets are parallel to each other, and the upper and upper surfaces of the upper brackets coupled to the fixing brackets of the ram driving member are horizontally maintained so that the link part and the operating part are integrated by a motor. A nuclear fuel exchanger remote ram drive, characterized in that consisting of a rotating part for rotating. The method of claim 7; The operation unit and the main pillar of the square pillar fixed to the lower bracket of the link unit, A ball screw located in the main frame of the square pillar and supported at both ends by a bearing bracket; A nut bracket coupled to the ball screw and partially protruding from the guide groove formed on one side of the main frame of the square pillar; A tilt rod having one end hinged to the nut bracket protruding through the guide groove and the other end hinged to the second link of the link portion by a rod bracket; A tilt driving motor coupled to the ball screw and installed in the main frame of the square pillar by a motor bracket; A main frame fixing bracket which is installed at a lower end of the square pillar main frame and is connected to a rotating part at a lower end thereof; The rotating unit and the fan housing is installed on the lower end of the main frame fixing bracket of the operating unit, A fan center gear bearing supported in the fan housing; A fan drive gear having one side engaged with the fan center gear and bearing-supported in the fan housing; A fan drive motor which operates the fan drive gear and is fixed to the main frame fixing bracket; And a mast fixing holder connected to the fan center gear and integrally fixed to an upper end of the mast member. The method of claim 1; The mast member is connected to the tilt member and the mast portion for moving the drive member and the tilt member up and down by a motor; The bottom of the mast portion is fixed and the base frame of the lower surface, A support bracket and a plurality of supports formed integrally with the outermost link of the mast portion, A nuclear fuel exchanger remote ram drive device comprising: a horizontal control unit connected to the base frame, the horizontal adjusting unit having a plurality of close contact bars which are moved downward by a conveying means and adhered to the basement floor.