Nuclear power stainless steel flange dismounting and mounting tool

Abstract

The utility model belongs to the technical field of flange disassembly and assembly, particularly relates to a nuclear power stainless steel flange disassembly and assembly tool, and aims to solve the problem of size, weight and space limitation in the background technology, and adopts the following scheme that the nuclear power stainless steel flange disassembly and assembly tool comprises a gear mounting frame, and a connecting rod is welded to the outer wall of one side of the gear mounting frame; a clamping sleeve assembly is welded to the outer wall of one end of the connecting rod, a first servo motor is fixedly connected to the outer wall of one side of the gear mounting frame through screws, a gear is fixedly connected to an output shaft of the first servo motor, a gear ring is meshed with the outer wall of the gear, and a connecting frame is welded to the outer wall of one side of the gear ring; and a flange dismounting assembly is arranged on the outer wall of the connecting frame. The double servo motors and the electric push rod are adopted for cooperative control, full automation of rotation, propelling and angle adjustment of the flange disassembling and assembling sleeve is achieved, manual intervention is reduced, the photoelectric sensor detects the flange position and bolt alignment state in real time, and disassembling and assembling precision is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange dismounting technical field especially relates to a nuclear power stainless steel flange dismounting frock. BACKGROUND

[0002] In the construction and maintenance of nuclear power plants, stainless steel flanges, as important connecting components of the piping system, bear the key role of sealing and pressure bearing. However, due to the particularity of the nuclear power environment (such as high temperature, high pressure, radiation, etc.), the dismounting operation of the flange faces the following technical difficulties:

[0003] 1. Size and weight problems: nuclear power flanges are usually large in size (diameter up to several meters) and heavy (several tons to several dozen tons), and traditional manual dismounting requires a large amount of manpower, is low in efficiency and has safety hazards.

[0004] 2. Space limitation: the piping layout of nuclear power plants is complex, and the operating space is narrow, making it difficult to adjust the angle and depth flexibly with traditional mechanical tools. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a nuclear power stainless steel flange dismounting frock, which overcomes the deficiencies of the prior art and effectively solves the problems of size and weight and space limitation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A nuclear power stainless steel flange dismounting frock, comprising a gear mounting frame, a connecting rod is welded to one side outer wall of the gear mounting frame, and a clamp sleeve assembly is welded to one end outer wall of the connecting rod, a first servo motor is fixedly connected to one side outer wall of the gear mounting frame through screws, and a gear is fixedly connected to the output shaft of the first servo motor, a gear ring is engaged on the outer wall of the gear, a connecting frame is welded to one side outer wall of the gear ring, and a flange dismounting assembly is arranged on the outer wall of the connecting frame.

[0008] Preferably, the gear ring is rotatably connected to the inner wall of the gear mounting frame, and a guide strip is arranged on the other side outer wall of the gear ring, which is slidably connected to the inner wall of the gear mounting frame.

[0009] Preferably, the clamp sleeve assembly comprises a first clamping plate, a second clamping plate and a lead screw, wherein the first clamping plate and the second clamping plate are symmetrically distributed between them, the first clamping plate is welded to one end outer wall of the connecting rod, the lead screw is rotatably connected to the inner wall of the first clamping plate, and the lead screw is screwed to the inner wall of the second clamping plate.

[0010] Preferably, the clamp sleeve assembly further comprises a first guide rod, one end of the first guide rod is fixedly connected to the outer wall of the second clamping plate, and the first guide rod is slidably connected to the inner wall of the first clamping plate.

[0011] Preferably, the flange dismounting assembly comprises an electric push rod, a connecting plate, a second servo motor and a flange dismounting sleeve, the electric push rod is fixedly connected to the outer wall of the connecting frame by screws, the connecting plate is fixedly connected to the piston rod of the electric push rod, the second servo motor is fixedly connected to the outer wall of the connecting plate by screws, the flange dismounting sleeve is installed on the output shaft of the second servo motor, and the inside of the flange dismounting sleeve is provided with a photoelectric sensor.

[0012] Preferably, the flange dismounting assembly further comprises a second guide rod, one end of the second guide rod is fixedly connected to the outer wall of the connecting plate, and the second guide rod is slidingly connected to the inner wall of the connecting frame.

[0013] The flange dismounting tool for nuclear power stainless steel flanges has the advantages that:

[0014] 1. The flange dismounting tool for nuclear power stainless steel flanges adopts double servo motors and an electric push rod for cooperative control, realizes full automation of rotation, propulsion and angle adjustment of the flange dismounting sleeve, reduces manual intervention, and the photoelectric sensor can detect the position of the flange and the alignment state of the bolts in real time, thereby ensuring the dismounting precision.

[0015] 2. The flange dismounting tool for nuclear power stainless steel flanges realizes 360° angle adjustment of the flange dismounting assembly through meshing and driving connection of the gear and the gear ring to adapt to complex space layout, and the guide strip and the gear mounting frame are slidingly matched to enhance the motion stability of the gear ring and prevent deviation, thereby having multi-degree-of-freedom adjustment capability.

[0016] 3. The flange dismounting tool for nuclear power stainless steel flanges adopts a high-stable clamping design, the sleeve assembly is linked with the first guide rod through a lead screw, the second clamping plate is moved along a straight line, and a symmetrical clamping force is formed, so that the fixing requirement of flanges with different diameters can be met. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a kind of nuclear power stainless steel flange dismounting tool's overall structure schematic Figure 1 ;

[0018] Figure 2 The utility model provides a kind of nuclear power stainless steel flange dismounting tool's overall structure schematic Figure 2 ;

[0019] Figure 3 It is a gear mounting frame internal connection structure schematic drawing of the utility model provides a kind of nuclear power stainless steel flange dismounting tool;

[0020] Figure 4 It is a flange dismounting assembly schematic drawing of the utility model provides a kind of nuclear power stainless steel flange dismounting tool.

[0021] In the figure: 1, gear mounting frame; 2, connecting rod; 3, clamp sleeve assembly; 31, first clamping plate; 32, second clamping plate; 33, screw rod; 34, first guide rod; 4, first servo motor; 5, gear; 6, gear ring; 7, connecting frame; 8, flange dismounting assembly; 81, electric push rod; 82, connecting plate; 83, second servo motor; 84, flange dismounting sleeve; 85, photoelectric sensor; 86, second guide rod; 9, guide bar. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment 1: Gear mounting frame and transmission system

[0024] As shown in Figure 1 , Figure 3 , the gear mounting frame 1 is the core support structure of the tooling, and the gear ring 6 is arranged in the gear mounting frame 1. The gear ring 6 is slidably connected with the sliding groove in the inner wall of the gear mounting frame 1 through the guide bar 9. The first servo motor 4 is fixed to the outer side of the gear mounting frame 1 through screws, and the gear 5 on the output shaft of the first servo motor 4 is engaged with the gear ring 6. When the first servo motor 4 is started, the gear 5 drives the gear ring 6 to rotate in the gear mounting frame 1, and drives the connecting frame 7 welded on the gear ring 6 to rotate synchronously, so that the circumferential angle adjustment of the flange dismounting assembly 8 is realized. The design of the guide bar 9 can limit the radial displacement of the gear ring 6, and ensure the stable transmission.

[0025] Embodiment 2: Structure of clamp sleeve assembly

[0026] As shown in Figure 1 , Figure 2 , the clamp sleeve assembly 3 includes the first clamping plate 31, the second clamping plate 32, the screw rod 33 and the first guide rod 34. The first clamping plate 31 is welded at the end of the connecting rod 2, and the second clamping plate 32 is screwed with the first clamping plate 31 through the screw rod 33. When operating, rotating the screw rod 33 can make the second clamping plate 32 move linearly along the first guide rod 34, forming a symmetrical clamping space. By adjusting the screwing depth of the screw rod 33, different flange outer diameters can be adapted. The sliding design of the first guide rod 34 avoids the deviation of the second clamping plate 32, and ensures that the clamping force is uniformly distributed.

[0027] Embodiment 3: Function of flange dismounting assembly 8

[0028] As shown in Figure 4As shown, the flange dismounting assembly 8 is composed of an electric push rod 81, a connecting plate 82, a second servo motor 83 and a flange dismounting sleeve 84. The electric push rod 81 is fixed to the outer wall of the connecting frame 7 by screws, and the connecting plate 82 at the end of the piston rod thereof is connected with the second servo motor 83. The second servo motor 83 drives the flange dismounting sleeve 84 to rotate, so as to tighten or loosen the bolts. The photoelectric sensor 85 is embedded in the flange dismounting sleeve 84, can detect the bolt hole position in real time, and adjusts the pushing distance of the electric push rod 81 through signal feedback, so as to ensure the accurate alignment of the bolts. The second guide rod 86 is fixed to the connecting plate 82 and is in sliding fit with the inner wall of the connecting frame 7, so as to ensure the linear accuracy in the pushing process.

[0029] Working principle:

[0030] I. Clamping and positioning stage: the operator moves the tooling to the vicinity of the target flange, rotates the screw rod 33 of the clamping sleeve assembly 3, so that the second clamping plate 32 clamps the outer edge of the flange together with the first clamping plate 31. The first guide rod 34 ensures that there is no deviation in the clamping process, and forms a stable support.

[0031] II. Angle and depth adjustment stage: the first servo motor 4 drives the gear 5 to rotate, drives the gear ring 6 and the connecting frame 7 to rotate, so that the flange dismounting assembly 8 is aligned with the flange bolt hole. The electric push rod 81 pushes the connecting plate 82 and the flange dismounting sleeve 84 to move linearly along the second guide rod 86, so as to adjust the contact depth of the dismounting sleeve with the flange face.

[0032] III. Bolt dismounting stage: the photoelectric sensor 85 detects the position of the bolt, feeds back the signal to the control system, and finely adjusts the pushing distance of the electric push rod 81. The second servo motor 83 is started, drives the flange dismounting sleeve 84 to rotate, and tightens or loosens the bolts according to the preset torque and sequence.

[0033] IV. Resetting and evacuation stage: after the work is completed, the electric push rod 81 is retracted, and the flange dismounting sleeve 84 is separated from the flange face. The first servo motor 4 is reversely rotated, so that the connecting frame 7 is reset to the initial angle, the clamping sleeve assembly 3 is loosened, and the tooling is moved out.

[0034] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A nuclear power stainless steel flange dismounting tooling, comprising a gear mounting frame (1), characterized in that, The gear mounting frame (1) one side outer wall is welded with connecting rod (2), and the connecting rod (2) one end outer wall is welded with jacket assembly (3), the gear mounting frame (1) one side outer wall is fixedly connected with first servo motor (4) through screw, and the first servo motor (4) output shaft is fixedly connected with gear (5), the outer wall of gear (5) is engaged with gear ring (6), the gear ring (6) one side outer wall is welded with connecting frame (7), and the outer wall of connecting frame (7) is provided with flange dismounting assembly (8).

2. The nuclear power stainless steel flange dismounting tool according to claim 1, characterized in that, The gear ring (6) is rotatably connected to the inner wall of the gear mounting frame (1), and the other side of the gear ring (6) is provided with a guide strip (9), which is slidably connected to the inner wall of the gear mounting frame (1).

3. The nuclear power stainless steel flange dismounting tool according to claim 1, characterized in that, The jacket assembly (3) comprises a first clamping plate (31), a second clamping plate (32) and a lead screw (33), wherein the first clamping plate (31) and the second clamping plate (32) are symmetrically distributed, and the first clamping plate (31) is welded to the outer wall of one end of the connecting rod (2), the lead screw (33) is rotatably connected to the inner wall of the first clamping plate (31), and the lead screw (33) is screwed to the inner wall of the second clamping plate (32).

4. The nuclear power stainless steel flange dismounting tool according to claim 1, characterized in that, The jacket assembly (3) further comprises a first guide rod (34), and one end of the first guide rod (34) is fixedly connected to the outer wall of the second clamping plate (32), and the first guide rod (34) is slidably connected to the inner wall of the first clamping plate (31).

5. The nuclear power stainless steel flange dismounting tool according to claim 1, characterized in that, The flange dismounting assembly (8) comprises an electric push rod (81), a connecting plate (82), a second servo motor (83) and a flange dismounting sleeve (84), wherein the electric push rod (81) is fixedly connected to the outer wall of the connecting frame (7) by screws, and the connecting plate (82) is fixedly connected to the piston rod of the electric push rod (81), the second servo motor (83) is fixedly connected to the outer wall of the connecting plate (82) by screws, the flange dismounting sleeve (84) is installed on the output shaft of the second servo motor (83), and the inside of the flange dismounting sleeve (84) is provided with a photoelectric sensor (85).

6. The nuclear power stainless steel flange dismounting tool according to claim 1, characterized in that, The flange dismounting assembly (8) further comprises a second guide rod (86), and one end of the second guide rod (86) is fixedly connected to the outer wall of the connecting plate (82), and the second guide rod (86) is slidably connected to the inner wall of the connecting frame (7).

Images