Generator rotor drawing and penetrating machine

Abstract

The utility model discloses a generator rotor drawing and penetrating machine, and relates to the drawing and penetrating machine field, the generator rotor drawing and penetrating machine comprises a drawing and penetrating machine, a fence box, a winding roller, a connecting plate and a lifting mechanism, the lifting mechanism comprises an electric cylinder, the electric cylinder is fixedly arranged in the drawing and penetrating machine, and the upper end of the electric cylinder is fixedly connected with an internal support plate; movable supporting plates are fixedly arranged on the two sides of the upper surface of the inner supporting plate and movably extend into the fence box, and circular holes allowing the rotating shafts to movably penetrate through are formed in the movable supporting plates. According to the utility model, the rotor can be pulled and held to stably pass through the stator, or the rotor can stably pass through the stator, so that manual work is replaced; and when the thickness of the steel rope changes, the height of the winding roller is adjusted in time, so that the position of the steel rope for pulling the rotor is always at the same height position, and the steel rope is ensured to horizontally pull the rotor without deviation.

Description

Technical Field

[0001] This utility model relates to the field of squeegee machines, and in particular to a generator rotor squeegee machine. Background Technology

[0002] A generator is a device that converts kinetic energy into electrical energy. It consists of an externally stationary stator and an internally rotating rotor. During generator maintenance, it is necessary to remove and insert the rotor from the stator. Because the rotor of a large steam turbine generator set is heavy, it needs to be pulled manually. Typically, a hand-operated hoist is suspended on each side of the rotor, and both hoists need to be tightened simultaneously when removing and inserting the rotor. Due to the large tension force, manual work efficiency is low.

[0003] Therefore, it is necessary to propose a generator rotor piercing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a generator rotor pulling machine to solve the problem of low manual work efficiency due to high tension force.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a generator rotor extraction machine, comprising:

[0006] A threading machine, which serves as the main support structure;

[0007] The enclosure box, which serves as the enclosure frame, is fixedly installed on the upper surface of the extraction machine;

[0008] A winding roller is rotatably installed in the enclosure box and used for winding steel rope; a rotating shaft is fixedly installed on the winding roller.

[0009] The connecting plate integrates a pressure sensor and is fixedly connected to the end of the steel rope. The connecting plate is also used to connect to the end of the rotor.

[0010] The lifting mechanism includes an electric cylinder, which is fixedly installed inside the drawing machine. An internal support plate is fixedly connected to the upper end of the electric cylinder. Movable support plates are fixedly installed on both sides of the upper surface of the internal support plate. The movable support plates extend movably into the enclosure box and are provided with round holes for the rotating shaft to pass through.

[0011] Preferably, the inner wall of the enclosure box is provided with a thickness sensor for monitoring the overall thickness of the steel rope wound on the winding roller.

[0012] Preferably, the steel rope wound on the winding roller is provided in two sets.

[0013] Preferably, an electric slide rail is fixedly installed on the bottom surface of the enclosure box, an electric push rod is slidably arranged on the electric slide rail, and a concave frame is connected to the upper end of the electric push rod, with the upper opening of the concave frame corresponding to the steel rope.

[0014] Preferably, the enclosure box is provided with a first lifting groove and a second lifting groove, and sliding bearings are slidably arranged in both the first lifting groove and the second lifting groove, and the two ends of the rotating shaft are respectively rotatably arranged on the two sliding bearings.

[0015] Preferably, a handwheel is fixedly connected to one end of the rotating shaft.

[0016] Preferably, the outer ring of the winding roller is provided with a threaded structure, and the steel rope is wound on the winding roller along the trajectory of the threaded structure.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. It can smoothly pull the rotor through the stator or smoothly insert the rotor into the stator, replacing manual labor;

[0019] 2. When the thickness of the steel rope changes, timely adjustment of the height of the winding roller can ensure that the position of the steel rope holding the rotor is always at a constant height, thus ensuring that the steel rope holds the rotor horizontally and does not deviate.

[0020] 3. When the data monitored by one of the pressure sensors is inconsistent, the corresponding electric push rod can be activated, and the concave frame can be used to push the steel rope to tension the corresponding steel rope, so as to achieve the purpose of consistent tension of the four sets of steel ropes and ensure that the rotor can be drawn horizontally. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the generator rotor extraction machine of this utility model.

[0022] Figure 2 This is a cross-sectional view of the generator rotor extraction machine of this utility model.

[0023] In the diagram: 1. Pulling machine; 2. Enclosure box; 3. Winding roller; 4. Steel rope; 5. Handwheel; 6. Rotating shaft; 7. Fixed plate; 8. Movable support plate; 9. Slide groove; 10. First lifting groove; 11. Second lifting groove; 12. Connecting plate; 13. Threaded structure; 14. Concave frame; 15. Electric push rod; 16. Electric slide rail; 17. Electric cylinder; 18. Internal support plate; 19. Thickness sensor. Detailed Implementation

[0024] This utility model provides, for example Figures 1-2 The diagram shows a generator rotor stripping machine, which is used to strip and install the generator rotor onto the generator stator.

[0025] During the piercing process, the rotor needs to be moved slowly and smoothly to avoid sudden impacts or vibrations. Operators should closely monitor the movement of the rotor to ensure that it passes smoothly through the stator.

[0026] The generator rotor extraction machine includes an extraction machine 1 and a enclosure box 2. The enclosure box 2 is fixedly installed above the extraction machine 1. A winding roller 3 is rotatably installed in the enclosure box 2. A first lifting groove 10 is provided on one side of the enclosure box 2, and a second lifting groove 11 is provided on the other side of the enclosure box 2. A rotating shaft 6 is fixedly installed in the middle of the winding roller 3. The rotating shaft 6 is rotatably mounted on a sliding bearing, which is slidably installed in the first lifting groove 10 and the second lifting groove 11. A handwheel 5 is fixedly installed at one end of the rotating shaft 6. The winding roller 3 can be rotated by rotating the handwheel 5. A steel rope 4 is wound around the outside of the winding roller 3. One end of the steel rope 4 is fixedly installed on the outer ring of the winding roller 3 by a fixing plate 7. When the winding roller 3 rotates, the steel rope 4 is wound up and down.

[0027] In this invention, the winding roller 3 is also equipped with two sets of steel ropes 4. The outer ring of the winding roller 3 is provided with a threaded structure 13. The steel ropes 4 are wound on the threaded structure 13, which can achieve the purpose of winding in sequence. The end of the steel rope 4 is provided with a connecting plate 12, and a pressure sensor is integrated in the connecting plate 12. When the generator rotor is pulled through, the generator stator is first fixed. Then, two sets of pulling machines 1 are respectively set on both sides of the stator. The connecting plate 12 is connected to the end of the rotor. The same end of the rotor is held by two sets of steel ropes 4. One set of winding rollers 3 winds up the steel ropes 4, and the other set of winding rollers 3 unwinds the steel ropes 4, so that the rotor can be pulled through smoothly from the stator or smoothly inserted into the stator, replacing manual labor.

[0028] As the winding roller 3 winds up or unwinds the steel rope 4, the steel ropes 4 at both ends of the rotor may become displaced at different heights due to changes in the maximum diameter of the steel rope 4, which can easily lead to the rotor being pulled in a non-horizontal direction. Therefore, in this invention, a thickness sensor 19 is installed on the inner wall of the enclosure box 2. The thickness sensor 19 is used to monitor the overall thickness of the steel rope 4 on the outer ring of the winding roller 3. When the thickness of the steel rope 4 changes, the height of the winding roller 3 can be adjusted in time to ensure that the position of the steel rope 4 pulling the rotor is always at the same height, thus ensuring that the steel rope 4 pulls the rotor horizontally and does not deviate.

[0029] An electric cylinder 17 is installed inside the drawing machine 1. The electric cylinder 17 is installed vertically and the upper end of the electric cylinder 17 is connected to an internal support plate 18. Movable support plates 8 are respectively installed at both ends of the rotating shaft 6. The rotating shaft 6 is movably passed through the movable support plates 8. The bottom of the enclosure box 2 is provided with a sliding groove 9 for the lower end of the movable support plate 8 to move into the interior of the drawing machine 1. The lower end of the movable support plate 8 is fixedly connected to the internal support plate 18. The height of the winding roller 3 can be adjusted in time by starting the electric cylinder 17.

[0030] Two sets of electric push rods 15 are also installed at the bottom of the enclosure box 2. The electric push rods 15 are slidably mounted on the electric slide rail 16. The position of the electric push rods 15 is adjustable. The electric slide rail 16 is fixedly connected to the bottom of the enclosure box 2. The upper end of the electric push rods 15 is connected to a concave frame 14, which corresponds to the steel rope 4. The pressure sensor in the connecting plate 12 can monitor the force of the steel rope 4 pulling the rotor. When the data monitored by one of the pressure sensors is inconsistent, it proves that the steel rope 4 may be over-loosened or over-tightened, which will cause the rotor to not be pulled horizontally. Therefore, when the data monitored by one of the pressure sensors is inconsistent, the corresponding electric push rod 15 can be activated, and the concave frame 14 can be used to push the steel rope 4 to tighten the corresponding steel rope 4, so as to achieve the purpose of consistent tension of the four sets of steel ropes 4 and ensure that the rotor can be pulled horizontally.

Claims

1. A generator rotor extraction machine, characterized in that, include: A threading machine (1) serves as the main support structure; The enclosure box (2) is fixedly installed on the upper surface of the drawing machine (1) as an enclosure frame; A winding roller (3) is rotatably installed in the enclosure box (2) and used to wind steel rope (4). A rotating shaft (6) is fixedly installed on the winding roller (3). The connecting plate (12) integrates a pressure sensor. The connecting plate (12) is fixedly connected to the end of the steel rope (4) and is used to connect with the end of the rotor. The lifting mechanism includes an electric cylinder (17), which is fixedly installed inside the pull-through machine (1). An internal support plate (18) is fixedly connected to the upper end of the electric cylinder (17). Movable support plates (8) are fixedly installed on both sides of the upper surface of the internal support plate (18). The movable support plates (8) extend into the enclosure box (2) and have a round hole for the rotating shaft (6) to pass through.

2. The generator rotor extraction machine according to claim 1, characterized in that: The inner wall of the enclosure box (2) is equipped with a thickness sensor (19) for monitoring the overall thickness of the steel rope (4) wound on the winding roller (3).

3. A generator rotor extraction machine according to claim 1, characterized in that: The winding roller (3) is provided with two sets of steel ropes (4).

4. A generator rotor extraction machine according to claim 1, characterized in that: An electric slide rail (16) is fixedly installed on the bottom surface of the enclosure box (2). An electric push rod (15) is slidably arranged on the electric slide rail (16). A concave frame (14) is connected to the upper end of the electric push rod (15). The upper opening of the concave frame (14) corresponds to the steel rope (4).

5. A generator rotor extraction machine according to claim 1, characterized in that: The enclosure box (2) is provided with a first lifting groove (10) and a second lifting groove (11). Sliding bearings are slidably installed in both the first lifting groove (10) and the second lifting groove (11). The two ends of the rotating shaft (6) are respectively rotatably installed on the two sliding bearings.

6. A generator rotor extraction machine according to claim 1, characterized in that: A handwheel (5) is fixedly connected to one end of the rotating shaft (6).

7. A generator rotor extraction machine according to claim 1, characterized in that: The outer ring of the winding roller (3) is provided with a threaded structure (13), and the steel rope (4) is wound on the winding roller (3) along the trajectory of the threaded structure (13).

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