CN106115571A - Upset conveying arrangement for fuel assembly container - Google Patents

Abstract

The present invention discloses a kind of upset conveying arrangement for fuel assembly container, including base, lift and the rollover stand for fixed fuel assembly container, rollover stand one end is hinged on base, the first driving oil cylinder it is provided with between rollover stand and base, the two ends of the first driving oil cylinder are hinged with rollover stand and base respectively, lift is sliding is contained in rollover stand sidepiece, and base bottom is equiped with the universal wheel being easy to movement.This device have simple and compact for structure, with low cost, be used conveniently and safely, stability is high, the advantage that can avoid artificial incorrect operation.

Description

Inverted transport device for fuel assembly containers

technical field

The invention mainly relates to the field of loading and transportation of fuel assemblies, in particular to an overturning transportation device for fuel assembly containers.

Background technique

In recent years, the soaring demand for electricity and the public's urgent need for clean air have prompted the rapid development of China's nuclear energy, but China's nuclear fuel components are still in the stage of independent research and development, and some related assembly and transportation devices are also in the stage of independent development, especially There are very few devices for loading nuclear fuel elements and hoisting transport containers, and the existing devices for hoisting transport containers are also simple devices combined with a crane. The transport container is installed on this device, and the crane pulls the container , so that the container is turned over together with the turning frame to meet the loading and unloading requirements of the fuel assembly. This way of using the crane to realize the turning action of the transport container cannot guarantee the stability of the movement, and both the container and the simple device need to be manually fixed and disassembled, which is prone to misoperation, which will increase the probability of danger. After the fuel assembly is loaded into the transport container, the container needs to be closed. At this time, the staff needs to take the elevator to perform operations such as container closure. This process requires an elevator, which increases the cost.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a reversing transportation device for fuel assembly containers that is simple and compact in structure, low in cost, convenient and safe to use, high in stability, and can avoid manual misoperation.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

An overturning transportation device for fuel assembly containers, comprising a base, an elevator, and an overturning frame for fixing the fuel assembly container, one end of the overturning frame is hinged on the base, and a first driving cylinder is arranged between the overturning frame and the base , the two ends of the first driving cylinder are respectively hinged with the overturning frame and the base, the elevator is slidingly mounted on the side of the overturning frame, and the bottom of the base is equipped with universal wheels for easy movement.

As a further improvement of the above technical solution:

The flip frame is provided with an upper positioning beam and a lower positioning beam. The upper positioning beam and the lower positioning beam are respectively provided with an upper locking groove and a lower locking groove for the lifting lug of the fuel assembly container to extend into. An upper locking part and a lower locking part for fixing the lifting lugs are respectively installed on the lower positioning beam.

The upper locking part includes a handle, a screw rod and a locking block. One end of the screw rod is connected to the handle, and the other end passes through the side beam of the flip frame and is connected to the locking block. The locking block is located in the upper lock groove. Above, when the handle is tightened, the screw pushes the locking block to lock the lifting lug.

The lower locking part includes a pin shaft and locking plates respectively arranged on both sides of the lifting lug, the lower locking groove is formed between the two locking plates, a card slot is opened on the locking plate, and the pin shaft Threaded on the lug and dropped into the card slot.

A guide rail is provided on the side of the reversing frame, and the elevator is slidably mounted on the guide rail, and a lifting drive assembly for driving the elevator to move is installed on the guide rail.

The lifting drive assembly includes a lifting cylinder, a movable pulley, a fixed pulley and a wire rope. The lifting cylinder is installed on the guide rail, the movable pulley is installed on the telescopic end of the lifting cylinder, and the fixed pulley is fixed on the top of the guide rail. One end of the wire rope is fixed on the top of the guide rail, and the other end is wound on the movable pulley and the fixed pulley in turn to connect with the elevator.

The elevator includes an operation platform and a guide wheel set, and the operation platform is slidably mounted on the guide rail through the guide wheel set.

A retractable door for adjusting the operating space is arranged on the operating platform.

The base is also provided with support legs for fixing the base, and a second drive cylinder for driving the support legs to land or lift off the ground is installed between the support legs and the base.

Compared with the prior art, the present invention has the advantages of:

When using the reversing transportation device for fuel assembly containers of the present invention, the base is pushed to a designated position and fixed, then the fuel assembly container is fixed on the reversing frame, and then the first driving cylinder is started, and the first driving cylinder elongates to drive The turning frame turns upwards around its hinge point to the desired position, and then the fuel assembly container is loaded with fuel assemblies. After the loading is completed, the operator can go up the elevator and follow it to the top of the turning frame to close the fuel assembly container. Then descend and leave the ladder with the elevator, and then start the first driving cylinder, the first driving cylinder shrinks and drives the turning frame to turn down around its hinge point to a horizontal position and bear it on the base, and finally push the base for transfer. The overturning transportation device of the present invention uses its own power source to drive the overturning frame and the fuel assembly container, and does not need to be hoisted by the crane. It is more flexible and can avoid manual misoperation; the staff can complete the closing of the cover through the elevator without a special elevator. On the one hand, the staff's work is more convenient and safe, and on the other hand, the cost can be reduced.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention (inverted state).

Fig. 2 is a schematic structural diagram (initial state) of the present invention.

Fig. 3 is a use state diagram of the present invention.

Fig. 4 is a schematic structural view of the upper positioning beam in the present invention.

Fig. 5 is a schematic structural view of the upper locking part in the present invention.

Fig. 6 is a partial structural schematic diagram of the upper end of the present invention.

Fig. 7 is a partial structural schematic diagram of the lower end of the present invention.

Fig. 8 is a schematic diagram of the assembly structure of the elevator and the guide rail in the present invention.

Fig. 9 is a structural schematic diagram of the lift in the present invention.

Each label in the figure means:

1. Base; 2. Elevator; 21. Operating platform; 22. Guide wheel group; 23. Telescopic door; 3. Overturn frame; 31. Upper positioning beam; 311. Upper locking groove; 312. Upper locking part; 3121 , handle; 3122, screw rod; 3123, locking block; 32, lower positioning beam; 321, lower locking groove; 322, lower locking component; 3221, pin shaft; 3222, locking plate; 32221, card slot; 33 , guide rail; 4, fuel assembly container; 41, lifting lug; 5, first drive cylinder; 6, universal wheel; 7, lifting drive assembly; 71, lifting cylinder; 72, movable pulley; 73, fixed pulley; 74, wire rope ; 8, supporting legs; 9, the second drive cylinder.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figures 1 to 9 show an embodiment of an overturning transportation device for fuel assembly containers according to the present invention, which includes a base 1, an elevator 2, and an overturning frame 3 for fixing the fuel assembly container 4, the overturning frame 3 One end is hinged on the base 1, and the first driving cylinder 5 is arranged between the turning frame 3 and the base 1. The two ends of the first driving oil cylinder 5 are respectively hinged with the turning frame 3 and the base 1. On the side, the bottom of the base 1 is provided with universal wheels 6 for easy movement. When in use, push the base 1 to the designated position and fix it, then fix the fuel assembly container 4 on the turning frame 3, and then start the first driving cylinder 5, and the extension of the first driving cylinder 5 drives the turning frame 3 upward around its hinge point Turn it over to the desired position, and then load the fuel assembly container 4. After the loading is completed, the operator can go up the lift 2 and rise to the top of the turning frame 3 to cover the fuel assembly container 4, and then lift it up and down. The ladder 2 descends and leaves the ladder, and then starts the first driving cylinder 5, and the first driving cylinder 5 shrinks to drive the overturning frame 3 to turn down around its hinge point to a horizontal position and carry it on the base 1, and finally push the base 1 for transfer. The overturning transportation device of the present invention uses its own power source to drive the overturning of the overturning frame 3 and the fuel assembly container 4. It does not need to be hoisted with a crane. Its structure is simpler and more compact, and it is more convenient to use, which can ensure the entire overturning transportation device. The stability can avoid manual misoperation; the staff can complete the cover closure through the elevator 2 without a special elevator. On the one hand, the staff's work is more convenient and safe, and on the other hand, the cost can be reduced.

In this embodiment, an upper positioning beam 31 and a lower positioning beam 32 are provided on the flip frame 3, and upper locking grooves 311 are provided on the upper positioning beam 31 and the lower positioning beam 32 respectively for the lifting lug 41 of the fuel assembly container 4 to extend into. and the lower locking groove 321 , the upper positioning beam 31 and the lower positioning beam 32 are respectively equipped with an upper locking part 312 and a lower locking part 322 for fixing the lifting ear 41 . In this structure, when installing the fuel assembly container 4, the upper and lower lifting lugs 41 of the fuel assembly container 4 are inserted into the upper locking groove 311 and the lower locking groove 321 of the upper positioning beam 31 and the lower positioning beam 32 respectively, and then cooperate with the upper locking groove The component 312 and the lower locking component 322 can lock the fuel assembly container 4, which can better ensure the stability of the container when it is overturned and avoid manual misoperation.

In this embodiment, the upper locking part 312 includes a handle 3121, a screw rod 3122 and a locking block 3123. One end of the screw rod 3122 is connected to the handle 3121, and the other end is connected to the locking block 3123 after passing through the side beam of the overturn frame 3. The tightening block 3123 is located above the upper locking groove 311 , and the threaded rod 3122 pushes the locking block 3123 to lock the lifting lug 41 when the handle 3121 is tightened. In this structure, when the upper lifting lug 41 extends into the upper locking groove 311, the handle 3121 is tightened, and the screw rod 3122 will push the locking block 3123 to close the opening of the upper locking groove 311, thereby realizing locking the upper lifting lug 41 and positioning the beam 31 A sensor is also provided, and when the locking block 3123 is in contact with the sensor, the first drive cylinder 5 can be stretched in, which can further prevent manual misoperation.

In this embodiment, the lower locking part 322 includes a pin shaft 3221 and locking plates 3222 respectively arranged on both sides of the lifting lug 41. A lower locking groove 321 is formed between the two locking plates 3222, and a locking plate 3222 is provided with a card. The slot 32221, the pin shaft 3221 is passed through the lifting ear 41 and falls into the slot 32221. In this structure, when the lower lifting lug 41 extends into the lower locking groove 321 between the locking plates 3222, the pin shaft 3221 is inserted into the socket of the lower lifting lug 41, and the locking groove 32221 is set as a chute. The shaft 3221 falls into the chute by the gravity of the fuel assembly container 4 to complete self-locking, and the chute can constrain the degree of freedom of the pin shaft 3221 in the horizontal direction.

In this embodiment, a guide rail 33 is provided on the side of the reversing frame 3, and the lift 2 is slidably mounted on the guide rail 33, and the lift drive assembly 7 for driving the lift 2 is installed on the guide rail 33. In this structure, starting the lifting drive assembly 7 can drive the lifting ladder 2 to move up and down along the guide rail 33, so as to close the fuel assembly container 4.

In this embodiment, the lifting drive assembly 7 includes a lifting cylinder 71, a movable pulley 72, a fixed pulley 73 and a wire rope 74. The lifting cylinder 71 is installed on the guide rail 33, the movable pulley 72 is installed on the telescopic end of the lifting cylinder 71, and the fixed pulley 73 is fixed Be contained in guide rail 33 tops, steel wire rope 74 one ends are fixed on guide rail 33 tops, and the other end is wound on movable pulley 72 and fixed pulley 73 successively and is connected with lift 2. In this structure, when it needs to rise, the lifting cylinder 71 shrinks and pulls the elevator 2 to rise along the guide rail 33 through the redirection of the movable pulley 72, the wire rope 74 and the fixed pulley 73. When it needs to descend, the lifting cylinder 71 extends, and the elevator 2 Fall under the action of self-weight.

In this embodiment, the elevator 2 includes an operating platform 21 and a guide wheel set 22 , and the operating platform 21 is slidably mounted on the guide rail 33 through the guide wheel set 22 . In this structure, the console 21 is used to carry the operator, and the setting of the guide wheel set 22 makes the lifting of the console 21 more stable and fast.

In this embodiment, a retractable door 23 for adjusting the operating space is provided on the operating platform 21 . The telescopic door 23 can adjust the size of the operating space of the console 21, making it more convenient and safe for operators to operate.

In this embodiment, the base 1 is also provided with a support leg 8 for fixing the base 1 , and a second driving cylinder 9 for driving the support leg 8 to land or lift off the ground is installed between the support leg 8 and the base 1 . When the base 1 needs to be fixed, the second drive cylinder 9 stretches to drive the support leg 8 to rotate downward and land on the ground to support the fixed base 1. When the base 1 needs to be moved, the second drive cylinder 9 shrinks to drive the support leg 8 to rotate upward and leave the ground. , at this time the universal wheel 6 is in contact with the ground, and the mobility of the base 1 is guaranteed by the universal wheel 6 .

The overturning transportation device for fuel assembly containers of the present invention is equipped with a motor, a fuel tank and an oil circuit on the base 1, and forms a set of hydraulic drive system with the first driving cylinder 5, the lifting cylinder 71 and the second driving cylinder 9, No additional power source is needed, the degree of automation is improved, and the compactness and stability of the device structure are guaranteed.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent implementation of equivalent changes example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. An overturning transport device for fuel assembly containers, characterized in that it includes a base (1), an elevator (2) and an overturning frame (3) for fixing the fuel assembly container (4), the overturning frame (3) One end is hinged on the base (1), and a first drive cylinder (5) is provided between the overturning frame (3) and the base (1), and the two ends of the first driving cylinder (5) are respectively connected with the overturning frame (3) and the base (1) are hinged, the elevator (2) is slidably installed on the side of the overturn frame (3), and the bottom of the base (1) is equipped with universal wheels (6) for easy movement. 2. The overturning transport device for fuel assembly containers according to claim 1, characterized in that: the overturn frame (3) is provided with an upper positioning beam (31) and a lower positioning beam (32), and the upper The positioning beam (31) and the lower positioning beam (32) are respectively provided with an upper lock groove (311) and a lower lock groove (321) for the lug (41) of the fuel assembly container (4) to extend into, and the upper positioning beam ( 31) and the lower positioning beam (32) are respectively equipped with an upper locking part (312) and a lower locking part (322) for fixing the lifting lug (41). 3. The overturning transportation device for fuel assembly containers according to claim 2, characterized in that: the upper locking part (312) includes a handle (3121), a screw rod (3122) and a locking block (3123) , one end of the screw rod (3122) is connected to the handle (3121), and the other end is connected to the locking block (3123) after passing through the side beam of the flip frame (3), and the locking block (3123) is located in the upper locking groove ( 311), when the handle (3121) is tightened, the screw rod (3122) pushes the locking block (3123) to lock the lifting lug (41). 4. The reversing transport device for fuel assembly containers according to claim 3, characterized in that: the lower locking part (322) includes a pin shaft (3221) and locks respectively arranged on both sides of the lifting lug (41) Tightening plate (3222), the lower locking groove (321) is formed between two locking plates (3222), the locking plate (3222) is provided with a card slot (32221), and the pin shaft (3221) Thread it on the lug (41) and drop it into the slot (32221). 5. The overturning transportation device for fuel assembly containers according to any one of claims 1 to 4, characterized in that guide rails (33) are provided on the side of the overturning frame (3), and the elevator ( 2) Slidingly installed on the guide rail (33), the lifting drive assembly (7) for driving the movement of the lift (2) is installed on the guide rail (33). 6. The overturning transportation device for fuel assembly containers according to claim 5, characterized in that: the lifting drive assembly (7) includes a lifting cylinder (71), a movable pulley (72), a fixed pulley (73) and a wire rope (74), the lifting cylinder (71) is installed on the guide rail (33), the movable pulley (72) is installed on the telescopic end of the lifting cylinder (71), and the fixed pulley (73) is fixed on the guide rail ( 33) The top, one end of the steel wire rope (74) is fixed on the top of the guide rail (33), and the other end is wound around the movable pulley (72) and the fixed pulley (73) in turn to connect with the elevator (2). 7. The overturning transportation device for fuel assembly containers according to claim 6, characterized in that: the elevator (2) includes an operating platform (21) and a set of guide wheels (22), and the operating platform (21 ) is slid on the guide rail (33) through the guide wheel set (22). 8. The overturning transportation device for fuel assembly containers according to claim 7, characterized in that: the operating platform (21) is provided with a telescopic door (23) for adjusting the operating space. 9. The reversing transportation device for fuel assembly containers according to any one of claims 1 to 4, characterized in that: the base (1) is also provided with support legs (8) for fixing the base (1) ), a second driving cylinder (9) for driving the supporting leg (8) to land or lift off the ground is installed between the supporting leg (8) and the base (1). 10. The overturning transportation device for fuel assembly containers according to claim 8, characterized in that: the base (1) is also provided with support legs (8) for fixing the base (1), and the support legs A second drive cylinder (9) for driving the supporting leg (8) to land or lift off the ground is installed between (8) and the base (1).