Anti-rotation device for pipeline of nuclear power plant

Abstract

The utility model discloses a nuclear power plant pipeline anti-rotation device which comprises a clamping mechanism and a driving mechanism, the clamping mechanism comprises a mounting plate and a clamping piece, and the mounting plate is provided with a first limiting hole and a second limiting hole which are perpendicular to each other; the clamping piece comprises a first clamping jaw and a second clamping jaw, a first roller is arranged at the first end of the first clamping jaw and located in the first limiting hole, and a second roller is arranged at the first end of the second clamping jaw and located in the first limiting hole; the driving mechanism comprises a mounting assembly and a driving assembly, the mounting assembly is connected with the mounting plate, the driving assembly is connected with the mounting assembly, and the driving assembly is connected with the fastening piece so as to drive the fastening piece to move along the second limiting hole, so that the clamping piece is loosened and loosened, and then the nuclear power plant pipeline can be clamped or loosened; the nuclear power plant pipeline is prevented from loosening or displacing in the transportation process or the maintenance process, the operation safety can be improved, and the nuclear power plant pipeline can be effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power technology field especially relates to a nuclear power plant pipeline anti-rotation device. BACKGROUND

[0002] Nuclear power plant has numerous pipelines, when the pipeline carries out transportation operation or overhauls operation, if the pipeline displacement or loosening, easy to have unexpected accident, for example, hit the staff's hand etc. INVENTION CONTENTS

[0003] The utility model solves the technical problem at, provide a nuclear power plant pipeline anti-rotation device.

[0004] The utility model adopts the technical scheme in the technical problem of solving its technical problem: construct a nuclear power plant pipeline anti-rotation device, including clamping mechanism and drive mechanism, the clamping mechanism includes mounting plate and clamping piece, the mounting plate is equipped with mutually perpendicular first limit hole and second limit hole, the first limit hole is along first direction extension setting, the second limit hole is along second direction extension setting, the clamping piece includes first clamping jaw and second clamping jaw, the first clamping jaw with the second clamping jaw's middle part is connected through fastener, the first end of first clamping jaw is equipped with first gyro wheel, and the first gyro wheel is located in the first limit hole, and the first end of second clamping jaw is equipped with second gyro wheel, and the second gyro wheel is located in the first limit hole.

[0005] The drive mechanism includes installation assembly and drive assembly, the installation assembly is connected with the mounting plate, the drive assembly is connected with the installation assembly, and the drive assembly is connected with the fastener, so that the fastener moves along the second limit hole, so that the clamping piece is loose.

[0006] In some embodiments, the installation assembly includes a bottom plate, a first mounting seat and a second mounting seat, the bottom plate is arranged in parallel and spaced apart from the mounting plate, the first mounting seat and the second mounting seat are arranged in spaced apart in the first direction, and the first mounting seat and the second mounting seat are connected with the bottom plate and the mounting plate.

[0007] The drive assembly includes a lead screw, a nut seat, a slide rail and a sliding block, the slide rail is installed on the bottom plate, and the slide rail is arranged in the first direction, the nut seat is installed on the slide rail through the sliding block, the lead screw is arranged in the first mounting seat, the nut seat and the second mounting seat, and the nut seat is connected with the fastener.

[0008] In some embodiments, the first end of the first clamping jaw is provided with a first positioning hole, the clamping mechanism comprises a first cylindrical pin penetrating the first positioning hole, and the first roller is connected to the lower end of the first cylindrical pin.

[0009] The first end of the second clamping jaw is provided with a second positioning hole, the clamping mechanism comprises a second cylindrical pin penetrating the second positioning hole, and the second roller is connected to the lower end of the second cylindrical pin.

[0010] In some embodiments, the fastener comprises a bolt or a screw.

[0011] In some embodiments, the first mounting base, the second mounting base and the mounting plate are detachably connected.

[0012] In some embodiments, the first mounting base and the second mounting base are each provided with a bearing, and the lead screw penetrates all the bearings.

[0013] In some embodiments, the driving assembly further comprises a driving member connected to the lead screw.

[0014] In some embodiments, the nuclear power plant pipeline anti-rotation device further comprises a height adjusting mechanism connected to the mounting plate or the bottom plate.

[0015] In some embodiments, the height adjusting mechanism comprises a crossbar, a first support rod and a second support rod, the first support rod is connected to the crossbar, the second support rod has a cylindrical structure, and the first support rod is movably installed in the inner cavity of the second support rod.

[0016] In some embodiments, the first support rod is provided with a plurality of first pin holes spaced apart in the height direction, the second support rod is provided with a plurality of second pin holes spaced apart in the height direction, and the first pin holes and the second pin holes are fixed relative to each other by a pin.

[0017] The nuclear power plant pipeline anti-rotation device has the following beneficial effects: the nuclear power plant pipeline anti-rotation device comprises a clamping mechanism and a driving mechanism, the clamping mechanism comprises a mounting plate and a clamping piece, the mounting plate is provided with a first limiting hole and a second limiting hole which are perpendicular to each other, the first limiting hole is arranged in extension along a first direction, and the second limiting hole is arranged in extension along a second direction; the clamping piece comprises a first clamping jaw and a second clamping jaw, the middle parts of the first clamping jaw and the second clamping jaw are connected through a fastener, the first end of the first clamping jaw is provided with a first roller, the first roller is located in the first limiting hole, the first end of the second clamping jaw is provided with a second roller, and the second roller is located in the first limiting hole; the driving mechanism comprises a mounting assembly and a driving assembly, the mounting assembly is connected with the mounting plate, the driving assembly is connected with the mounting assembly, and the driving assembly is connected with the fastener, so as to drive the fastener to move along the second limiting hole, so that the clamping piece is loose or tight, and then the nuclear power plant pipeline can be clamped or loosened, the nuclear power plant pipeline can be prevented from loosening or displacement during transportation or maintenance, the operation safety can be improved, and the nuclear power plant pipeline can be effectively protected. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0019] Figure 1 is an application schematic diagram of the nuclear power plant pipeline anti-rotation device in some embodiments of the present application;

[0020] Figure 2 is a structural schematic diagram of the nuclear power plant pipeline anti-rotation device in some embodiments of the present application;

[0021] Figure 3 is a structural schematic diagram of the mounting plate in some embodiments of the present application;

[0022] Figure 4 is a partial structural schematic diagram of the nuclear power plant pipeline anti-rotation device in some embodiments of the present application. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical scheme, and do not indicate that the indicated device or element must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0024] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical scheme, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the following description, specific details are presented to illustrate, not to limit, the embodiments of the present application, so that the present application can be thoroughly understood. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits and methods is omitted to avoid unnecessary details that hinder the description of the present application.

[0026] Please refer to Figures 1 to 4 The present application shows a kind of nuclear power plant pipeline anti-rotation device, it can be installed on mobile car, for clamping nuclear power plant pipeline 100, to prevent nuclear power plant pipeline 100 from sending loose or displacement in transport process or overhaul process, can improve operation safety, and can effectively protect nuclear power plant pipeline 100.

[0027] In some embodiments, the nuclear power plant pipeline anti-rotation device can include a clamping mechanism 10 and a driving mechanism 20. The clamping mechanism 10 includes a mounting plate 11 and a clamping piece 12. The mounting plate 11 is generally a long rectangular plate structure. The mounting plate 11 can be provided with a first limiting hole 111 and a second limiting hole 112 perpendicular to each other. The first limiting hole 111 extends in a first direction, and the second limiting hole 112 extends in a second direction. The first direction and the second direction are perpendicular to each other. The first direction can be the length direction or the width direction of the mounting plate 11. The second direction can be the width direction or the length direction of the mounting plate 11. Further, the length of the first limiting hole 111 is greater than the length of the second limiting hole 112.

[0028] The clamping piece 12 includes a first clamping jaw 121 and a second clamping jaw 122. Both the first clamping jaw 121 and the second clamping jaw 122 are arc-shaped structures. The middle parts of the first clamping jaw 121 and the second clamping jaw 122 are connected by a fastener 123. The middle parts of the first clamping jaw 121 and the second clamping jaw 122 can be groove structures. The first clamping jaw 121 and the second clamping jaw 122 are butted against each other, so that the upper and lower surfaces of the overall structure of the first clamping jaw 121 and the second clamping jaw 122 are relatively flush. The first end of the first clamping jaw 121 is provided with a first roller 13, and the first roller 13 is located in the first limiting hole 111. The first end of the second clamping jaw 122 is provided with a second roller 14, and the second roller 14 is located in the first limiting hole 111.

[0029] The driving mechanism 20 includes a mounting assembly 21 and a driving assembly 22. The mounting assembly 21 is connected with the mounting plate 11. The driving assembly 22 is connected with the mounting assembly 21 and the fastener 123, so as to drive the fastener 123 to move along the second limiting hole 112, so that the clamping piece 12 is loose or tight, thereby clamping or releasing the nuclear power plant pipeline 100.

[0030] In some embodiments, the mounting assembly 21 includes a bottom plate 211, a first mounting seat 212, and a second mounting seat 213. The bottom plate 211 is parallel and spaced apart from the mounting plate 11. The first mounting seat 212 and the second mounting seat 213 are spaced apart in the first direction, and the first mounting seat 212 and the second mounting seat 213 connect the bottom plate 211 and the mounting plate 11. The first mounting seat 212, the second mounting seat 213, and the mounting plate 11 can be detachably connected, such as by a threaded connection.

[0031] The driving assembly 22 comprises a screw rod 221, a nut seat 222, a slide rail 223 and a slide block 224. The slide rail 223 is installed on the bottom plate 211 and extends along a first direction. The nut seat 222 is installed on the slide rail 223 through the slide block 224. The screw rod 221 penetrates through the first mounting seat 212, the nut seat 222 and the second mounting seat 213. The nut seat 222 is connected with the fastener 123.

[0032] When the screw rod 221 rotates, the nut seat 222 moves linearly along the screw rod 221, drives the first roller 13 and the second roller 14 to rotate along the inner side surface of the first limiting hole 111, and further drives the clamping member 12 to perform the opening and closing action to clamp the nuclear power plant pipeline 100 (for example, a valve body upper branch pipe).

[0033] As shown in Figures 2 to 4 The first end of the first clamping jaw 121 is provided with a first positioning hole. The clamping mechanism 10 comprises a first cylindrical pin 15 penetrating through the first positioning hole. The first roller 13 is connected with the lower end of the first cylindrical pin 15. The first end of the second clamping jaw 122 is provided with a second positioning hole. The clamping mechanism 10 comprises a second cylindrical pin 16 penetrating through the second positioning hole. The second roller 14 is connected with the lower end of the second cylindrical pin 16. The first cylindrical pin 15 and the second cylindrical pin 16 can be variable-diameter cylindrical pins.

[0034] In some embodiments, the fastener 123 comprises a bolt or a screw.

[0035] In some embodiments, the first mounting seat 212 and the second mounting seat 213 are provided with bearings 214. The screw rod 221 penetrates through all the bearings 214.

[0036] In some embodiments, the driving assembly 22 further comprises a driving member connected with the screw rod 221. The driving member can be a driving motor, for example, a servo motor. The servo motor has high driving precision and has a forward and reverse rotation function.

[0037] In some embodiments, the nuclear power plant pipeline anti-rotation device further comprises a height adjusting mechanism 30 connected with the mounting plate 11 or the bottom plate 211.

[0038] In some embodiments, the height adjusting mechanism 30 comprises a cross rod 31, a first supporting rod 32 and a second supporting rod 33. The first supporting rod is connected with the cross rod 31. The second supporting rod 33 has a cylindrical structure. The first supporting rod is movably installed in the inner cavity of the second supporting rod 33.

[0039] In some embodiments, the first support rod 32 is provided with a plurality of first pin holes spaced along the height direction, and the second support rod 33 is provided with a plurality of second pin holes spaced along the height direction, and the first pin holes and the second pin holes are fixed relative to each other by a pin.

[0040] It can be understood that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A nuclear power plant pipe anti-rotation device, characterized by, The utility model provides a clamping mechanism (10) and drive mechanism (20) are included, the clamping mechanism (10) includes mounting plate (11) and clamping piece (12), the mounting plate (11) is equipped with mutually perpendicular first limit hole (111) with second limit hole (112), the first limit hole (111) is along first direction extension setting, the second limit hole (112) is along second direction extension setting, the clamping piece (12) includes first clamping jaw (121) with second clamping jaw (122), the first clamping jaw (121) with the second clamping jaw (122) middle part is connected through fastener (123), the first clamping jaw (121) first end is equipped with first gyro wheel (13), and the first gyro wheel (13) is located in the first limit hole (111), and the first end of second clamping jaw (122) is equipped with second gyro wheel (14), and the second gyro wheel (14) is located in the first limit hole (111), The drive mechanism (20) includes installation assembly (21) with drive assembly (22), the installation assembly (21) is connected with the mounting plate (11), the drive assembly (22) is connected with the installation assembly (21), and the drive assembly (22) is connected with the fastener (123), to drive the fastener (123) moves along the second limit hole (112), so that the clamping piece (12) is loose.

2. The nuclear power plant pipe rotation prevention device of claim 1, wherein, The installation assembly (21) includes bottom plate (211), first mounting seat (212) and second mounting seat (213), the bottom plate (211) is parallelly and spaced apart from the mounting plate (11), the first mounting seat (212) and the second mounting seat (213) are spaced apart along a first direction, and the first mounting seat (212) and the second mounting seat (213) connect the bottom plate (211) and the mounting plate (11). The drive assembly (22) includes lead screw (221), nut seat (222), slide rail (223) and sliding block (224), the slide rail (223) is installed on the bottom plate (211), and the slide rail (223) extends along a first direction, the nut seat (222) is installed on the slide rail (223) through the sliding block (224), the lead screw (221) is provided through the first mounting seat (212), the nut seat (222) and the second mounting seat (213), and the nut seat (222) is connected with the fastener (123).

3. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The first end of the first clamping jaw (121) is provided with a first positioning hole, the clamping mechanism (10) includes a first cylindrical pin (15) passing through the first positioning hole, and the first gyro wheel (13) is connected with the lower end of the first cylindrical pin (15). The first end of the second clamping jaw (122) is provided with a second positioning hole, the clamping mechanism (10) includes a second cylindrical pin (16) passing through the second positioning hole, and the second gyro wheel (14) is connected with the lower end of the second cylindrical pin (16).

4. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The fastener (123) includes a bolt or a screw.

5. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The first mounting seat (212), the second mounting seat (213) and the mounting plate (11) are detachably connected.

6. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The first mounting seat (212) and the second mounting seat (213) are each provided with a bearing (214), and the screw rod (221) penetrates all the bearings (214).

7. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The driving assembly (22) further comprises a driving member connected with the screw rod (221).

8. The nuclear power plant pipe rotation prevention device of claim 2, wherein, The nuclear power plant pipeline anti-rotation device further comprises a height adjusting mechanism (30) connected with the mounting plate (11) or the bottom plate (211).

9. The nuclear power plant pipe rotation prevention device of claim 8, wherein, The height adjusting mechanism (30) comprises a cross rod (31), a first supporting rod (32) and a second supporting rod (33), the first supporting rod (32) is connected with the cross rod (31), the second supporting rod (33) is in a cylindrical structure, and the first supporting rod (32) is movably installed in the inner cavity of the second supporting rod (33).

10. The nuclear power plant pipe rotation prevention device of claim 9, wherein, The first supporting rod (32) is provided with a plurality of first pin holes spaced apart in the height direction, the second supporting rod (33) is provided with a plurality of second pin holes spaced apart in the height direction, and the first pin holes and the second pin holes are relatively fixed by a pin.

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