CN215682082U - Nuclear power large and medium-sized motor core-pulling device - Google Patents

Abstract

The utility model discloses a core pulling device for a nuclear power large and medium-sized motor, which belongs to the technical field of production, installation and maintenance of the motor, and the core pulling device comprises a beam rail, when a motor rotor needs core pulling, a lifting hook can be connected with the beam rail through a second fixing bolt, the lifting hook is connected with a stainless steel adjusting machine and a shaft following frame through a shackle, the tail end of the motor rotor is connected with a lead-out shaft, a hand pulling tackle is clamped on the beam rail through a bolt, the hand pulling tackle and the stainless steel adjusting machine are connected through the shackle, the lower end of the stainless steel adjusting machine is connected with a hoop through the shackle, the front end of the motor rotor is embraced by the hoop, the adjusting screw rod can be rotated counterclockwise after the device is connected, the rotor is slightly lifted, whether the rotor is adjusted to a horizontal position is judged through a horizontal ruler, after the horizontal position is adjusted, the hand pulling pulley is enabled to slide leftwards through a pulley by pulling a chain on the hand pulling tackle, while the rotor moves to the left until the rotor is completely removed from the interior of the motor.

Description

Nuclear power large and medium-sized motor core-pulling device

Technical Field

The utility model relates to the technical field of production, installation and maintenance of motors, in particular to a core pulling device for a nuclear power large and medium-sized motor.

Background

The field motors of the nuclear power plant are more in quantity, when the motor is disassembled or overhauled, the motor needs to be lifted out of a specific position from an original position, then the rotor is pulled out, the situations of damage, corrosion, grinding points and the like of the rotor or the stator are detected, and the cleaning, foreign matter detection and the like are carried out on the motor. Based on the position arrangement of nuclear power field motor, partial region space is narrow, conventional hoist and mount method, not only need the skilled technique, the personnel that possess relevant experience carry out, and maintenance time is longer, if can make a set of device, realize light nimble electric motor work of loosing core, do not need to realize through personnel's experience, can conveniently implement the electric motor work of loosing core simultaneously, this will bring very big facility for the inspection maintenance work of nuclear power plant's motor, in addition, whether the device of loosing core can adapt to the all kinds of motor distribution environment of nuclear power plant well, reduce the operation degree of difficulty, practice thrift the field work time, this has had higher requirement again to the suitability and the flexibility of the device of loosing core.

However, the core pulling device for the large and medium-sized nuclear power motor has no adjustable structure and cannot be used for core pulling work of a high-voltage motor and core pulling speed and safety risk of a low-voltage motor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a core pulling device for a nuclear power large and medium-sized motor, aiming at solving the problems.

The utility model discloses a nuclear power large and medium motor core pulling device which comprises a beam rail, wherein a lifting hook is arranged on the right side of the lower end face of the beam rail, a fixing bolt II is arranged between the lower end face of the beam rail and the lifting hook, a hand-pulling tackle is connected to the lower end face of the beam rail through a bolt in a clamping mode, stainless steel adjusting machines are arranged below the hand-pulling tackle and the lifting hook, a motor rotor is arranged below the beam rail, a leading-out shaft is arranged on the right side of the motor rotor, a hoop is sleeved on the outer wall of the left side of the motor rotor, a following shaft frame is sleeved on the outer wall of the leading-out shaft, shackles are arranged between the lifting hook and the hand-pulling tackle as well as between the stainless steel adjusting machines, and between the stainless steel adjusting machines and the hoop and the following shaft frame, and a horizontal ruler is arranged on the outer wall of the leading-out shaft.

In order to adjust the connection condition between the shaft following frame and the guide shaft, the core pulling device for the nuclear power large and medium-sized motor is preferably characterized in that three fixing frames which are distributed in an annular mode are arranged on the outer wall of the shaft following frame, rollers are arranged at the ends, close to the guide shaft, of the three fixing frames, clamping bolts are arranged on the outer walls of the three fixing frames, and adjusting knobs are arranged at the ends, far away from the rollers, of the three fixing frames.

In order to adjust the angle of the rotor, the core pulling device for the nuclear power large and medium-sized motor is preferable, an adjusting screw is installed on one side of the shaft following frame, and a hanging ring is installed on the upper end face of the shaft following frame.

In order to facilitate smooth movement of the hand-pulling tackle, the core-pulling device for the nuclear power large and medium-sized motor is preferable in that one end, close to the cross beam rail, of the hand-pulling tackle is provided with a pulley, and a first fixing bolt is arranged between the right side of the motor rotor and the leading-out shaft.

In order to reduce the bearing capacity of the cross beam rail, the core pulling device for the nuclear power large and medium-sized motor is preferably arranged, and a plurality of weight reducing holes which are uniformly distributed penetrate through the outer wall of the cross beam rail.

In order to ensure that the connection between the shaft following frame and the guide shaft is stable, the core pulling device for the nuclear power large and medium-sized motor is preferable, and the chain is installed on the outer wall of the hand pulling pulley.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the core pulling device for the nuclear power large and medium-sized motor needs to pull the core of the motor rotor, the lifting hook can be connected with a beam rail through a second fixing bolt, then the lifting hook is connected with a stainless steel adjusting machine and the lower end of the stainless steel adjusting machine is connected with a shaft following frame through shackles, then the tail end of the motor rotor is connected with a leading-out shaft through a first fixing bolt, a hand-pulling tackle is clamped on the beam rail through bolts, the hand-pulling tackle is connected with the stainless steel adjusting machine through shackles, the lower end of the stainless steel adjusting machine is connected with a hoop through shackles, the front end of the motor rotor is held by the hoop, the adjusting screw rod can be rotated counterclockwise after the device is connected, the rotor is slightly lifted up, whether the rotor is adjusted to a horizontal position is judged through a horizontal ruler, after the rotor is adjusted to be well, the hand-pulling a chain on the hand-pulling tackle is enabled to slide leftward through a pulley, and the rotor moves leftward at the same time until the rotor is completely moved out of the interior of the motor, the assembly is simple and rapid, the adjustment is suitable for different maintenance positions, the processes of the extraction and the reinstallation of the rotor are simple, the dependence on auxiliary facilities for operation is reduced, and the improvement of the working efficiency is facilitated;

to sum up, the core pulling device for the nuclear power large and medium-sized motor has an adjustable structure, can be used for core pulling work of a high-voltage motor and a low-voltage motor, is light and flexible, is not limited by a field, is high in core pulling speed and low in safety risk, and greatly reduces risks brought by core pulling methods of existing motors.

Drawings

FIG. 1 is an overall structure diagram of a core pulling device of a nuclear power large and medium-sized motor, which is disclosed by the utility model;

FIG. 2 is a side view block diagram of the motor rotor grip of the present invention;

fig. 3 is a perspective view of the heel shaft bracket of the present invention.

In the figure, 1, a beam rail; 2. a hook; 3. shackle dismounting; 4. stainless steel mixing machine; 5. a shaft following frame; 6. a level bar; 7. hooping; 8. pulling a pulley by hand; 9. lightening holes; 10. a pulley; 11. a motor rotor; 12. fixing a first bolt; 13. fixing a second bolt; 14. a lead-out shaft; 15. adjusting a knob; 16. a hoisting ring; 17. clamping the bolt; 18. adjusting the screw rod; 19. and a roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, in this embodiment, when core pulling is required for the motor rotor 11, the hook 2 may be connected to the beam rail 1 through the second fixing bolt 13, the hook 2 may be connected to the stainless steel conditioner 4 through the shackle 3, the lower end of the stainless steel conditioner 4 may be connected to the shaft following frame 5, the end of the motor rotor 11 may be connected to the lead-out shaft 14 through the first fixing bolt 12, the hand pulley 8 may be fastened to the beam rail 1 through the bolt, the hand pulley 8 may be connected to the stainless steel conditioner 4 through the shackle 3, the lower end of the stainless steel conditioner 4 may be connected to the hoop 7 through the shackle 3, the hoop 7 may hold the front end of the motor rotor 11, the adjusting screw 18 may be rotated clockwise after the device is connected, the rotor may be slightly lifted up, the leveling ruler 6 may be used to determine whether the rotor is adjusted to the horizontal position, and after the horizontal position is adjusted, the chain on the hand pulley 8 may be pulled, make hand power coaster 8 pass through pulley 10 and slide left, the rotor removes left simultaneously, and is whole to shift out from the motor is inside until the rotor, and then can realize that the assembly is simple swift, is applicable to different maintenance positions through the adjustment, and has realized that the rotor is taken out and repacking process simple process, has reduced the dependence to the supplementary facility of operation, helps work efficiency's improvement.

In this embodiment, the suspension ring 16 is used for facilitating connection with the shackle 3, so as to achieve connection with the shaft bracket 5, the shaft bracket 5 is sleeved on the outer wall of the leading-out shaft 14, the stable connection between the fixing frame and the shaft bracket 5 can be achieved by adjusting the clamping bolt 17, meanwhile, the fixing frame can be adjusted by adjusting the adjusting knob 15, the roller 19 is enabled to be in close contact with the outer wall of the leading-out shaft 14, the stable connection between the shaft bracket 5 and the leading-out shaft 14 is achieved, and therefore the rotor can be conveniently moved out of the motor, and the bearing capacity of the beam rail 1 can be reduced through the lightening hole 9.

The working principle is as follows: when core pulling is needed to the motor rotor 11, the lifting hook can be connected with the beam track 1 through a second fixing bolt 13, the lifting hook 2 and the stainless steel adjusting machine 4 are connected through a shackle 3, the lower end of the stainless steel adjusting machine 4 is connected with the shaft following frame 5, the tail end of the motor rotor 11 is connected with the leading-out shaft 14 through a first fixing bolt 12, the hand-pulling tackle 8 is clamped on the beam track 1 through a bolt, the hand-pulling tackle 8 and the stainless steel adjusting machine 4 are connected through the shackle 3, the lower end of the stainless steel adjusting machine 4 is connected with the hoop 7 through the shackle 3, the front end of the motor rotor 11 is held by the hoop 7, the adjusting screw 18 can be rotated counterclockwise after the device is connected, the rotor is slightly lifted, whether the rotor is adjusted to the horizontal position is judged through the horizontal ruler 6, after the horizontal position is adjusted, the hand-pulling chain on the hand-pulling tackle 8 enables the hand-pulling tackle 8 to slide leftward through the pulley 10, and the rotor moves leftward at the same time, until the rotor all shifts out from the motor is inside, and then can realize that the assembly is simple swift, is applicable to different maintenance positions through the adjustment, and has realized that the rotor takes out and repacks the process simple process, has reduced the dependence to the supplementary facility of operation, helps work efficiency's improvement.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a large-and-medium-sized motor of nuclear power device of loosing core, includes crossbeam track (1), its characterized in that: the lifting hook (2) is installed on the right side of the lower end face of the beam rail (1), a fixing bolt II (13) is installed between the lower end face of the beam rail (1) and the lifting hook (2), a hand-pulling pulley (8) is connected to the lower end face of the beam rail (1) through a bolt in a clamping mode, stainless steel adjusting machines (4) are arranged below the hand-pulling pulley (8) and the lifting hook (2), a motor rotor (11) is arranged below the beam rail (1), a leading-out shaft (14) is installed on the right side of the motor rotor (11), a hoop (7) is sleeved on the outer wall of the left side of the motor rotor (11), a shaft following frame (5) is sleeved on the outer wall of the leading-out shaft (14), and the lifting hook (2), the hand-pulling pulley (8) and the stainless steel adjusting machines (4), the hoop (7) and the shaft following frame (5) are all provided with the shackle (3), and a level (6) is arranged on the outer wall of the leading-out shaft (14).

2. The core pulling device for the nuclear power large and medium-sized motor according to claim 1, characterized in that: install three mount that is the annular and distributes with the outer wall of pedestal (5), it is three the gyro wheel (19) are all installed to the one end that the mount is close to derivation axle (14), and is three clamping bolt (17), three are all installed to the outer wall of mount the one end that gyro wheel (19) were kept away from to the mount all installs adjust knob (15).

3. The core pulling device for the nuclear power large and medium-sized motor according to claim 1, characterized in that: an adjusting screw rod (18) is installed on one side of the shaft following frame (5), and a hanging ring (16) is installed on the upper end face of the shaft following frame (5).

4. The core pulling device for the nuclear power large and medium-sized motor according to claim 1, characterized in that: the hand-pulling tackle (8) is close to one end of the beam rail (1) and is provided with a pulley (10), and a first fixing bolt (12) is arranged between the right side of the motor rotor (11) and the leading-out shaft (14).

5. The core pulling device for the nuclear power large and medium-sized motor according to claim 1, characterized in that: the outer wall of the beam rail (1) is provided with a plurality of lightening holes (9) which are uniformly distributed in a penetrating way.

6. The core pulling device for the nuclear power large and medium-sized motor according to claim 1, characterized in that: and a chain is arranged on the outer wall of the hand pulling tackle (8).

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