Turnover device for main pump motor rotor of nuclear power station

Abstract

The utility model discloses a nuclear power station main pump motor rotor turnover device which comprises a bottom plate, a plurality of supporting frames are fixedly connected to the corners of the top face of the bottom plate, moving assemblies are arranged in the supporting frames, U-shaped mounting frames are fixedly connected to the left side face and the right side face of the bottom plate, and a plurality of connecting plates are fixedly connected to the inner side faces of the U-shaped mounting frames. A clamping assembly is arranged on the bottom face of one connecting plate, and a fixing assembly is arranged in the middle of the top face of the bottom plate. When the device is used, the whole device is convenient to move, the main pump motor rotor is hoisted to the position above the device and slowly descends until the bottom end of the main pump motor rotor is aligned with the fixing base, and the main pump motor rotor is fixed through the fixing assembly and the clamping assembly; and a quarter circle at the lower right corner of the U-shaped mounting frame is gradually in contact with the ground until the main pump motor rotor is overturned, so that potential safety hazards and equipment damage risks during overturning are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to main pump motor overhauling technical field, concretely is nuclear power station main pump motor rotor turnover device. BACKGROUND

[0002] Nuclear power plant reactor coolant pump motor is the driving equipment of nuclear power plant one loop "heart", when main pump motor is overhauled, the motor rotor needs to be vertically extracted and then be placed horizontally after being turned over 90 degrees, so as to facilitate the inspection of the rotor surface.

[0003] Generally, the rotor can be turned over from the vertical state to the horizontal state by using the mode of cooperation of the travelling crane large hook, this mode requires higher travelling crane operation level, and the rotor is heavy, so there is the risk of falling damage to equipment and personal safety in the turning over process. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing nuclear power station main pump motor rotor turnover device to solve the problems in the above background technology.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: nuclear power station main pump motor rotor turnover device, including bottom plate, the bottom plate top corner fixedly connected with a plurality of support frames, the support frame is internally provided with a moving assembly, the bottom plate left and right side is fixedly connected with U type mounting bracket, the U type mounting bracket inboard is fixedly connected with a plurality of connecting plates, one connecting plate bottom is provided with clamping assembly, the bottom plate top middle part is provided with fixed component.

[0006] Preferably, the moving assembly includes a hydraulic rod, the hydraulic rod is fixedly connected to the top wall of the support frame, the bottom end of the hydraulic rod is fixedly connected with a mounting plate, and the bottom surface of the mounting plate is fixedly connected with a universal wheel.

[0007] Preferably, the clamping assembly includes a motor, the motor is fixedly connected to the bottom surface of one connecting plate located on the left end of the top end of the U type mounting bracket, the output shaft of the motor is fixedly connected with a threaded rod, the threaded rod is rotatably connected to the side surface of one connecting plate located on the right end of the top of the U type mounting bracket at the end away from the motor, the screw threads of the two ends of the threaded rod are opposite, the two ends of the threaded rod are threadedly connected with two mounting rods, the ends of the two mounting rods away from the threaded rod are slidably connected with a sliding rod, the two ends of the sliding rod are fixedly connected to the side surface of the connecting plate, the opposite side surfaces of the two mounting rods are fixedly connected with clamping blocks, and the inboard surfaces of the clamping blocks are fixedly connected with non-slip mats.

[0008] Preferably, the fixed component includes a fixed seat, the fixed seat is fixedly connected to the middle part of the top surface of the bottom plate, a plug hole is formed in the middle part of the fixed seat, a plurality of threaded holes are formed in the edge of the top surface of the fixed seat, the threaded holes are circumferentially distributed, and the threaded holes are threadedly connected with fixed bolts.

[0009] Preferably, the right lower corner of the U-shaped mounting frame is quarter-round, and a plurality of arc-shaped plates are fixedly connected to the inner side of the right lower corner of the U-shaped mounting frame.

[0010] Preferably, a square hole is formed at the corner of the bottom surface of the bottom plate, and the universal wheel passes through the square hole.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. In use, the main pump motor rotor is hoisted to the top of the device, slowly lowered until the bottom end of the main pump motor rotor is aligned with the fixing seat, the flange at the bottom end of the main pump motor rotor is connected with the fixing seat through fixing bolts, the motor is started, the motor drives the threaded rod to rotate, the mounting rod drives the clamping blocks to approach each other, the clamping blocks clamp and fix the upper end of the main pump motor rotor, thereby fixing the main pump motor rotor, the quarter-round at the right lower corner of the U-shaped mounting frame gradually contacts the ground through the movement and falling of the travelling crane, until the overturning of the main pump motor rotor is completed, and the safety hazards and equipment damage risks existing in overturning are reduced.

[0013] 2. In use, the device is moved to the designated use position, the hydraulic rod is started, the hydraulic rod drives the universal wheels to move upward through the mounting plate, so that the bottom plate contacts the ground, and the stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a front structure schematic view of the utility model;

[0016] Figure 3 It is a clamping assembly structure schematic view of the utility model;

[0017] Figure 4 It is a fixing assembly structure schematic view of the utility model.

[0018] In the drawing: 1, bottom plate; 2, support frame; 3, moving assembly; 31, hydraulic rod; 32, mounting plate; 33, universal wheel; 4, U-shaped mounting frame; 5, connecting plate; 6, clamping assembly; 61, motor; 62, threaded rod; 63, mounting rod; 64, sliding rod; 65, clamping block; 7, fixing assembly; 71, fixing seat; 72, insertion hole; 73, threaded hole; 74, fixing bolt; 8, arc-shaped plate; 9, square hole. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4 The utility model provides a technical scheme: nuclear power plant main pump motor rotor turnover device, including bottom plate 1, a plurality of support frame 2 is installed through bolt in bottom plate 1 top face corner, mobile subassembly 3 is installed in support frame 2 inside, U type mounting bracket 4 is welded in bottom plate 1 left and right side, a plurality of connecting plate 5 is welded in U type mounting bracket 4 inboard, clamping subassembly 6 is installed in one connecting plate 5 bottom surface, fixed component 7 is installed in bottom plate 1 top surface middle part.

[0021] Mobile subassembly 3 includes hydraulic rod 31, and hydraulic rod 31 is installed through bolt in support frame 2 top wall, and mounting plate 32 is installed through bolt in hydraulic rod 31 bottom end, and universal wheel 33 is installed through bolt in mounting plate 32 bottom surface.

[0022] Clamping subassembly 6 includes motor 61, and motor 61 is installed through bolt in the bottom surface of one connecting plate 5 located at the left end of U type mounting bracket 4 top, and threaded rod 62 is installed through coupling in motor 61 output shaft, and threaded rod 62 is rotatably installed through bearing in the side surface of one connecting plate 5 located at the top of right end of U type mounting bracket 4 far from motor 61 one end, and the screw thread rotation direction of both ends of threaded rod 62 is opposite, and two mounting rods 63 are screw connected in both ends of threaded rod 62, and slide rod 64 is slidably connected with both mounting rods 63 far from threaded rod 62 one end, and both ends of slide rod 64 are installed through bolt in the side surface of connecting plate 5, and clamping block 65 is installed through bolt in the opposite side surface of two mounting rods 63, and antiskid pad is bonded in the inboard surface of clamping block 65.

[0023] Fixed component 7 includes fixed seat 71, and fixed seat 71 is installed through bolt in the middle part of bottom plate 1 top surface, and insertion hole 72 is set in the middle part of fixed seat 71, and a plurality of threaded holes 73 are set in the top surface edge of fixed seat 71, and a plurality of threaded holes 73 are distributed in a circle, and fixed bolt 74 is screw connected with threaded hole 73.

[0024] The right lower corner of U type mounting bracket 4 is a quarter circle, and a plurality of arc plates 8 are welded in the inboard surface of the right lower corner of U type mounting bracket 4.

[0025] Square hole 9 is set in the corner of bottom plate 1 bottom surface, and universal wheel 33 passes through square hole 9.

[0026] Working principle: the utility model discloses in use, through the rolling of universal wheel 33, make the whole device convenient to move, the whole device is moved to the designated use position, start hydraulic rod 31, and hydraulic rod 31 is driven universal wheel 33 to move upwards through mounting plate 32, make bottom plate 1 contact with ground, improve the stability, hoist the main pump motor rotor to the device top, slowly drop until the main pump motor rotor bottom end aligns fixed seat 71, through fixed bolt 73 the flange of main pump motor rotor bottom end is connected with fixed seat 71, start motor 61, and motor 61 drives screw rod 62 to rotate, make mounting rod 63 drive clamping block 65 close to each other, and clamping block 65 is clamped and fixed to the main pump motor rotor upper end, thereby the main pump motor rotor is fixed, through the movement and fall of travelling crane, make the quarter circle of U-shaped mounting frame 4 right lower corner gradually contact with ground, until the completion main pump motor rotor overturning, reduce the security risk and equipment damage risk existing when overturning, the utility model has the advantages of convenient use, good use effect.

[0027] It should be noted that, in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present utility model have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, alternatives, and variations can be made to the embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for turning over a rotor of a main pump motor of a nuclear power plant, comprising a base plate (1), characterized in that: The bottom plate (1) top corner is fixedly connected with a plurality of support frames (2), the support frame (2) is provided with a moving assembly (3), the bottom plate (1) left and right side is fixedly connected with a U-shaped mounting bracket (4), the U-shaped mounting bracket (4) inner side is fixedly connected with a plurality of connecting plates (5), one connecting plate (5) bottom is provided with a clamping assembly (6), the bottom plate (1) top middle part is provided with a fixed assembly (7).

2. The nuclear power plant primary pump motor rotor inverting device according to claim 1, characterized in that: The moving assembly (3) includes a hydraulic rod (31), the hydraulic rod (31) is fixedly connected to the top wall of the support frame (2), and the bottom end of the hydraulic rod (31) is fixedly connected with a mounting plate (32). The mounting plate (32) is fixedly connected with a universal wheel (33) on the bottom surface.

3. The nuclear power plant primary pump motor rotor inverting device of claim 1, wherein: The clamping assembly (6) includes a motor (61), the motor (61) is fixedly connected to the bottom surface of the connecting plate (5) located on the left end of the U-shaped mounting bracket (4), the output shaft of the motor (61) is fixedly connected with a threaded rod (62), the threaded rod (62) is rotatably connected to the side surface of the connecting plate (5) located on the right end of the U-shaped mounting bracket (4) and the top of the threaded rod (62) is away from the motor (61), the screw threads of the two ends of the threaded rod (62) are opposite, the two ends of the threaded rod (62) are threadedly connected with two mounting rods (63), the two mounting rods (63) are slidably connected with a slide rod (64) away from the threaded rod (62), the slide rod (64) is fixedly connected to the side surface of the connecting plate (5), and the opposite side surfaces of the two mounting rods (63) are fixedly connected with clamping blocks (65). The inner side of the clamping block (65) is fixedly connected with a non-slip pad.

4. The nuclear power plant primary pump motor rotor inverting device of claim 1, wherein: The fixed assembly (7) includes a fixed seat (71), the fixed seat (71) is fixedly connected to the top middle part of the bottom plate (1), the fixed seat (71) is provided with a plug hole (72) in the middle part, the top surface of the fixed seat (71) is provided with a plurality of threaded holes (73), the plurality of threaded holes (73) are distributed in a circle, and the threaded holes (73) are threadedly connected with fixed bolts (74).

5. The nuclear power plant primary pump motor rotor inverting device of claim 1, wherein: The right lower corner of the U-shaped mounting bracket (4) is a quarter circle, and a plurality of arc-shaped plates (8) are fixedly connected to the inner side of the right lower corner of the U-shaped mounting bracket (4).

6. The nuclear power plant primary pump motor rotor inverting device of claim 2, wherein: The bottom surface of the bottom plate (1) is provided with a square hole (9) at the corner, and the universal wheel (33) passes through the square hole (9).

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