阅读说明：本技术 一种用于乏燃料干法转运推拉杆专用移动支架 (Special moving support for spent fuel dry method transfer push-pull rod ) 是由 孟令佳 欧阳钦 王志兵 茆秋华 刘红雨 马幸龙 胡珈鸣 葛科党 郑海全 单光方 于 2020-06-04 设计创作，主要内容包括：本发明公开一种用于乏燃料干法转运推拉杆专用移动支架,包括支架本体,沿前后方向延伸,支架本体前侧具有第一限位槽、后侧具有一对第二限位槽和一个支撑部,第一限位槽和支撑部限定一水平中心线,一对第二限位槽对称布置在水平中心线的两侧位置,第一限位槽、一对第二限位槽三者成V字形布置；装夹组件,设置在支架本体上且用于将推杆/拉杆夹紧在支架本体上或将推杆/拉杆从支架本体上松懈；至少三个可调节伸缩组件,均包括可调节伸缩杆和调节器,可调节伸缩杆安装在支架本体底部且用于将该支架本体支撑在地面上,调节器安装在可调节伸缩杆上且用于驱动可调节伸缩杆向外伸出或向内缩回；至少三个万向轮,分别安装在相应的可调节伸缩杆下端部。(The invention discloses a special movable support for a push-pull rod for transferring spent fuel by a dry method, which comprises a support body, wherein the support body extends along the front-back direction, the front side of the support body is provided with a first limiting groove, the rear side of the support body is provided with a pair of second limiting grooves and a supporting part, the first limiting groove and the supporting part limit a horizontal central line, the pair of second limiting grooves are symmetrically arranged at the two sides of the horizontal central line, and the first limiting groove and the pair of second limiting grooves are arranged in a V shape; the clamping assembly is arranged on the bracket body and is used for clamping the push rod/pull rod on the bracket body or loosening the push rod/pull rod from the bracket body; the adjustable telescopic rod is arranged at the bottom of the support body and used for supporting the support body on the ground, and the adjuster is arranged on the adjustable telescopic rod and used for driving the adjustable telescopic rod to extend outwards or retract inwards; and at least three universal wheels are respectively arranged at the lower end parts of the corresponding adjustable telescopic rods.)

1. The utility model provides a be used for special movable support of push-pull rod of spentnuclear fuel dry process transportation which characterized in that includes:

the bracket comprises a bracket body (1) extending along the front-back direction, wherein a first limiting groove (111) is formed in the front side of the bracket body (1), a pair of second limiting grooves (121) and a supporting part (122) are formed in the rear side of the bracket body (1), the first limiting groove (111) and the supporting part (122) define a horizontal central line, the pair of second limiting grooves (121) are symmetrically arranged at two sides of the horizontal central line, and the first limiting groove (111) and the pair of second limiting grooves (121) are arranged in a V shape;

a clamping assembly (2) arranged on the bracket body (1) and configured to clamp the push rod/pull rod on the bracket body (1) or release the push rod/pull rod from the bracket body (1);

at least three adjustable telescopic assemblies (3) which respectively comprise an adjustable telescopic rod (31) and an adjuster (32), wherein the adjustable telescopic rod (31) is arranged at the bottom of the bracket body (1) and is used for supporting the bracket body (1) on the ground, and the adjuster (32) is arranged on the adjustable telescopic rod (31) and is configured to drive the adjustable telescopic rod (31) to extend outwards or retract inwards;

at least three universal wheels (4) are respectively arranged at the lower end parts of the corresponding adjustable telescopic rods (31).

2. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: the clamping assembly (2) comprises a pair of clamping parts (21) and a driving part, the pair of clamping parts (21) are rotatably arranged on two opposite side walls of the first limiting groove (111) through rotating shafts respectively, the pair of clamping parts (21) are in transmission connection through a linkage assembly, and the driving part is configured to drive the pair of clamping parts (21) to rotate simultaneously so as to realize opposite movement and shorten the distance between the pair of clamping parts (21) or move back to back and increase the distance between the pair of clamping parts (21).

3. The special moving support for the push-pull rod for the spent fuel dry transportation according to claim 2, wherein: the driving part is a hand-operated rod (22), and the hand-operated rod (22) is coaxially and fixedly connected with a rotating shaft of one of the clamping parts (21).

4. The special moving support for the push-pull rod for the spent fuel dry transportation according to claim 2, wherein: the linkage assembly comprises a pair of gears and linkage rods, the pair of gears are arranged on the support body (1) and are arranged along two opposite sides of the first limiting groove (111), each gear is in meshing transmission with the rotating shaft of the corresponding clamping part (21), and the linkage rods are arranged on the support body (1) and are in meshing transmission with the pair of gears.

5. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: the supporting part (122) is provided with a semicircular supporting surface (1221) which is matched with the outer wall surface of the push rod and is concave downwards.

6. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: the universal wheel (4) is provided with a brake assembly (41) in a matching mode, and the brake assembly (41) is configured to lock the universal wheel (4) or release the locking state.

7. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: anti-skid rubber pads are arranged in the first limiting groove (111), the pair of second limiting grooves (121) and the supporting part (122).

8. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: support body (1) include first supporter (11), second supporter (12) and connecting rod (13), first supporter (11) be located second supporter (12) front side, connecting rod (13) fixed connection first supporter (11) with second supporter (12) between, first spacing groove (111) form first supporter (11) on, a pair of second spacing groove (121) with supporting part (122) form respectively second supporter (12) on.

9. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: the three adjustable telescopic assemblies (3) are arranged in a triangle.

10. The special moving support for the spent fuel dry transportation push-pull rod according to claim 1, wherein: the support body (1) is T-shaped in appearance.

Technical Field

The invention relates to the technical field of nuclear power equipment, in particular to a special movable support for replacing and installing a push rod/pull rod between a transfer trailer and a tractor in a spent fuel transfer process.

Background

In the initial construction stage of nuclear power, a storage pool for storing spent fuel is constructed, due to the limitation of the storage capacity of the spent fuel pool, along with the increase of the operation age of a unit, the generated spent fuel assemblies are increased year by year, and the conventional storage cannot meet the rapid development of the nuclear power industry in China. With the development and utilization of the Chinese nuclear power technology, the domestic nuclear power industry gradually introduces, digests and absorbs and pushes away the spent fuel dry storage process. During the process of the dry storage and transportation of the spent fuel, a transport container loaded with 31 spent fuel assemblies and a sealed storage container are required to be transported to a concrete module through a tractor and a transport trailer for dry storage. The connection of the tractor and the transfer trailer depends on a push rod and a pull rod. The transport container will be followed portal crane and gone up handling to transporting the trailer after filling 31 spent fuel assemblies, at this moment need change to the push rod, and the transport trailer is connected to the tractor locomotive to push away transporting the trailer and pushing away to the portal crane down. After the container is installed to the transportation trailer to transport, change the pull rod, be connected to the pull rod with the afterbody of tractor and transportation trailer, conveniently transport to the dry process and store the place. After the tractor and the transfer trailer are transported to a dry storage site, the push rod needs to be replaced, and the purpose of the push rod is to push the transfer trailer to a concrete module (HSM) for centering. And pushing the sealed storage container (DSC) into the concrete module through a hydraulic telescopic device (HPU), replacing the pull rod, then opening the tractor and the transfer trailer out of the dry storage field, closing the cabin door of the concrete module (HSM), and finishing the dry storage and transfer of the spent fuel. The push-pull rod needs to be frequently replaced in the whole transfer process, the push-pull rod is installed and moved through manpower in the conventional transfer process, at least four to five persons are needed when the pull rod is moved, the labor is very high, and personnel irradiation can be increased particularly when the push-pull rod is replaced and installed after materials are loaded. In order to reduce the time for replacing the push-pull rod by personnel and reduce unnecessary personnel irradiation, reduce the number of personnel for replacing the push-pull rod and improve the safety of transporting the push-pull rod, the special movable support device for the push-pull rod, which is suitable for the dry transportation of the spent fuel, is required to be designed.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a special movable support for a push-pull rod for spent fuel dry method transfer, which is more convenient, safer and more reliable in push-pull rod/pull rod installation.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme:

a be used for special movable support of spentnuclear fuel dry process transportation push-pull rod, includes:

the bracket comprises a bracket body, a first limiting groove is arranged on the front side of the bracket body, a pair of second limiting grooves and a supporting part are arranged on the rear side of the bracket body, the first limiting groove and the supporting part limit a horizontal central line, the pair of second limiting grooves are symmetrically arranged on two sides of the horizontal central line, and the first limiting groove and the pair of second limiting grooves are arranged in a V shape;

a clamping assembly disposed on said stent body and configured to clamp or release the push/pull rod to or from said stent body;

at least three adjustable telescoping assemblies, each comprising an adjustable telescoping rod mounted at the bottom of the stand body for supporting the stand body on the ground and an adjuster mounted on the adjustable telescoping rod and configured to drive the adjustable telescoping rod to extend outwardly or retract inwardly;

and at least three universal wheels are respectively arranged at the lower end parts of the corresponding adjustable telescopic rods.

In the above technical solution, preferably, the clamping assembly includes a pair of clamping members and a driving member, the pair of clamping members are respectively rotatably disposed on two opposite side walls of the first limiting groove through a rotating shaft, the pair of clamping members are in transmission connection through a linkage assembly, and the driving member is configured to drive the pair of clamping members to simultaneously rotate so as to realize opposite movement and shorten a distance between the pair of clamping members or move back to back and increase a distance between the pair of clamping members.

In the above technical solution, preferably, the driving member is a hand lever, and the hand lever is coaxially and fixedly connected with a rotating shaft of one of the clamping members.

In the above technical solution, preferably, the linkage assembly includes a pair of gears and a linkage rod, the pair of gears is disposed on the bracket body and arranged along two opposite sides of the first limiting groove, each gear is in meshing transmission with the rotating shaft of the corresponding clamping component, and the linkage rod is disposed on the bracket body and in meshing transmission with the pair of gears.

In the above technical solution, preferably, the support portion has a downwardly concave semicircular support surface matched with the outer wall surface of the push rod.

In the above technical solution, preferably, the universal wheel is provided with a brake assembly in a matching manner, and the brake assembly is configured to lock the universal wheel or release the locking state.

In the above technical solution, preferably, the first limiting groove, the pair of second limiting grooves and the supporting portion are all provided with anti-skid rubber pads.

In the above technical solution, preferably, the bracket body includes a first supporting body, a second supporting body and a connecting rod, the first supporting body is located at a front side of the second supporting body, the connecting rod is fixedly connected between the first supporting body and the second supporting body, the first limiting groove is formed on the first supporting body, and the pair of the second limiting groove and the supporting portion are respectively formed on the second supporting body.

In the above technical solution, preferably, three adjustable telescopic assemblies are arranged in a triangle.

In the above technical solution, preferably, the shape of the stent body is T-shaped.

Compared with the prior art, the invention has the following beneficial effects:

1. the installation is convenient: when the push rod/pull rod is transferred, the push rod/pull rod can be limited through the three limiting grooves and the supporting part on the support body and fastened through the clamping assembly, so that the time for a person to install the push rod is reduced, the damage of the person caused by error in the carrying process is reduced, the push rod is prevented from falling off due to jolt caused by uneven ground in the moving process, and the push rod/pull rod is more convenient to move through the arrangement of the universal wheels;

2. safe and reliable: by arranging at least three adjustable telescopic assemblies, the height of the bracket body can be adjusted when the push rod/pull rod is installed, the installation efficiency is improved, unnecessary personnel radiation is reduced, the manpower during installation is saved, and the push rod and the pull rod can be conveniently assembled, disassembled and replaced;

3. the universality is good: this special movable support can be applicable to the transportation of push rod and pull rod simultaneously.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a push rod used for dry transfer of spent fuel and the installation structure of the invention;

FIG. 3 is a schematic view of a mounting structure of a pull rod and the invention used for the dry transfer of spent fuel;

wherein: 100. moving the support; 200. a push rod; 300. a pull rod;

1. a stent body; 11. a first support; 12. a second support; 13. a connecting rod; 111. (ii) a A first limit groove; 121. a second limit groove; 122. a support portion; 1221. a semicircular supporting surface;

2. clamping the assembly; 21. a clamping member; 22. a hand lever;

3. an adjustable telescoping assembly; 31. the telescopic rod can be adjusted; 32. a regulator;

4. a universal wheel; 41. a brake component.

Detailed Description

For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings. In the following embodiments, the front side refers to a side direction of the first support body, and the rear side refers to a side direction of the second support body.

As shown in fig. 1, the movable support 100 includes a support body 1, a clamping assembly 2, three adjustable telescopic assemblies 3, and three universal wheels 4.

Support body 1 extends along the fore-and-aft direction, combines that fig. 2, fig. 3 show, and push rod 200 is the straight line, and the main function is the bolt of connecting the tractor head and the bolt of transporting the trailer, and the driver drives the tractor and promotes forward and make push rod 200 atress in the spent fuel dry process transportation, promotes to transport the trailer and reaches the position of expectation. The pull rod 300 is V-shaped, and mainly functions to connect the tail of the tractor and the transfer trailer, and to pull the transfer trailer by the power of the tractor, which belongs to the known technology in the prior art, and is not described herein for understanding the present invention.

In order to adapt to different shapes of the push rod 200 and the pull rod 300, the overall shape of the bracket body 1 is T-shaped, the bracket body 1 comprises a first supporting body 11, a second supporting body 12 and a connecting rod 13, the first supporting body 11 is located on the front side of the second supporting body 12, the connecting rod 13 is a bearing rod, and the connecting rod 13 is fixedly connected between the first supporting body 11 and the second supporting body 12.

The front side of the bracket body 1 is provided with a first limit groove 111, the rear side of the bracket body 1 is provided with a pair of second limit grooves 121 and a supporting part 122, the first limit groove 111 is formed on the first supporting body 11, and the pair of second limit grooves 121 and the supporting part 122 are respectively formed on the second supporting body 12. The first limiting groove 111 and the supporting portion 122 define a horizontal center line, the pair of second limiting grooves 121 are symmetrically arranged at two sides of the horizontal center line, and the first limiting groove 111 and the pair of second limiting grooves 121 are arranged in a V shape.

In order to increase the friction force, the contact place between the movable bracket 100 and the push rod 200/pull rod 300 is padded by rubber material, so as to prevent the push rod/pull rod from shaking on the movable bracket 100 during transportation, and avoid the abrasion of the push rod/pull rod and the movable bracket 100 caused by shaking. Specifically, anti-skid rubber pads are disposed in the first limiting groove 111, the pair of second limiting grooves 121, and the supporting portion 122.

Since the outer surface of the push rod 200 is substantially a circumferential surface, the support portion 122 has a downwardly concave semicircular support surface 1221 matching with the outer wall surface of the push rod 200 in order to stably support the push rod 200 on the support body 1 during the transfer of the push rod 200 in the present mobile support 100.

And the clamping assembly 2 is arranged on the bracket body 1 and is configured to clamp the push rod/pull rod on the bracket body 1 or loosen the push rod/pull rod from the bracket body 1. Specifically, the clamping assembly 2 includes a pair of clamping members 21 and a driving member, the pair of clamping members 21 are respectively rotatably disposed on two opposite sidewalls of the first limiting groove 111 through a rotating shaft, the pair of clamping members 21 are in transmission connection through a linkage assembly, and the driving member is configured to drive the pair of clamping members 21 to simultaneously rotate so as to realize opposite movement and shorten the distance between the pair of clamping members 21 or move away from each other and increase the distance between the pair of clamping members 21. The driving part is a hand lever 22, and the hand lever 22 is coaxially and fixedly connected with a rotating shaft of one clamping part 21. The linkage assembly comprises a pair of gears and linkage rods, the pair of gears are arranged on the support body 1 and are arranged along two opposite sides of the first limiting groove 111, each gear is in meshing transmission with the rotating shaft of the corresponding clamping part 21, and the linkage rods are arranged on the support body 1 and are in meshing transmission with the pair of gears. In this example, the rotation shaft of the clamping member 21 is mounted on opposite side walls of the first stopper groove 111 in a mechanical structure that extends and contracts by a screw.

Of course, in other embodiments, the driving structure is not limited to the hand-operated lever, and may be driven by electricity or a cylinder, for example, a rotating motor or a rotating cylinder is coaxially connected to a rotating shaft of one of the clamping members to drive a pair of clamping members to synchronously link to achieve clamping or loosening, or a pair of clamping cylinders is disposed at two opposite sides of the first limiting groove 111, and a clamping finger or a clamping block is mounted on the clamping cylinder.

Three adjustable telescopic assemblies 3 are arranged in a triangle. Each adjustable telescopic assembly 3 includes an adjustable telescopic rod 31 and an adjuster 32, the adjustable telescopic rod 31 is installed at the bottom of the stand body 1 and is used for supporting the stand body 1 on the ground, and the adjuster 32 is installed on the adjustable telescopic rod 31 and is configured to drive the adjustable telescopic rod 31 to extend outwards or retract inwards. In this example, the adjustable telescopic rod 31 adopts a mechanical structure of thread extension, the adjuster 32 in the middle of the adjustable telescopic rod 31 is rotated clockwise, and the adjustable telescopic rod 31 extends outwards, so that the height of the bracket body 1 is increased; the adjuster 32 in the middle of the adjustable telescopic rod 31 is rotated counterclockwise, so that the adjustable telescopic rod 31 retracts inwards, and the height of the bracket body 1 is reduced. The height-adjusting device is suitable for adjusting the height of the push rod and the pull rod during installation, simultaneously saves manpower during installation, and reduces the movable support to the lowest position after installation, thereby facilitating the loading and unloading operation of the push rod/the pull rod.

And the three universal wheels 4 are respectively arranged at the lower end parts of the corresponding adjustable telescopic rods 31. Specifically, the universal wheel 4 is provided with a brake assembly 41, and the brake assembly 41 is configured to lock or unlock the universal wheel 4. Specifically, universal wheel 4 is made for industry rubber materials, plays the cushioning effect at the removal in-process, makes the transportation more steady, and universal wheel hub adopts the aluminum alloy structure, and is light withstand voltage more. The brake assembly 41 may be a brake pad that is mounted in a matched manner on the universal wheel 4, and when the push-pull rod moving device is not in use, the universal wheel may be fixed in order to prevent the movement caused by the accidental touch of a person.

Of course, in other embodiments, the vehicle frame structure may be designed without using three adjustable telescopic assemblies and three corresponding universal wheels, and four or more adjustable telescopic assemblies and universal wheels may be used to support the moving frame, so as to improve the stability of the moving frame.

The working principle is as follows:

combine shown in fig. 2, during the installation push rod, dismantle to one side with the pull rod of original connection earlier, the adjustable telescopic link of moving movable support transfers to the height that is fit for the installation (if change the pull rod after transporting the container and feed, should adjust the telescopic link height earlier and then be close to the installation, reduce personnel and shine), will move movable support and remove to the position that needs the installation push rod, unclamp the rocker that moves the movable support front end, rise adjustable telescopic link to mounting height, installation push rod bolt.

Referring to fig. 3, when the pull rod is installed, the pull rod to be replaced is placed on the special moving support, the push rod for connecting the tractor and the transfer trailer is unloaded to one side, the moving support loaded with the pull rod is moved to the installation position, the rocker is rotated anticlockwise to relax the pair of clamping components, and the adjustable telescopic rod is adjusted to the height of the installed pull rod; and installing a pull rod and installing a bolt.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.