Turbine rotor mounting equipment

Abstract

The utility model relates to the technical field of steam turbine installation, and discloses steam turbine rotor installation equipment which comprises a base, the upper surface of the base is rotationally connected with a longitudinal screw, the surface of the base is fixedly provided with a first servo motor for driving the longitudinal screw to rotate, and the surface of the longitudinal screw is in threaded connection with a movable seat. In the operation process, the first servo motor drives the longitudinal screw rod to rotate, the movable base can be driven to move, the installation position is adjusted, the first swing assembly drives the rack to move through stretching and retracting of the second hydraulic rod, and the angles of the suspension arm and the beam frame can be adjusted based on meshing of the rack and the fluted disc; by arranging the second swing assembly, the second servo motor is used for driving the worm to rotate, the angle of the beam frame can be adjusted based on meshing of the worm and the worm gear, then the installation angle of the rotor can be adjusted conveniently, the purpose of stably installing the rotor in the turbine shell is achieved, and the installation precision of the rotor is ensured.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine installation technology, and more specifically to a steam turbine rotor installation device. Background Technology

[0002] A steam turbine, also known as a steam turbine engine, is a large mechanical device composed of multiple sets of mechanical parts. During the installation of a steam turbine, the rotor needs to be hoisted and installed using installation and hoisting equipment. Workers manually attach hoisting ropes to the outer wall of the rotor, and then control the movement of the hoisting ropes through the installation equipment, thereby moving the rotor to the appropriate position for placement and installation.

[0003] A search revealed an existing patent (publication number: CN220480791U) that discloses a turbine rotor installation device. During use, a clamping mechanism is installed, using a pressing method to move the plate upwards. Simultaneously, two sets of moving blocks move the clamping blocks inwards to clamp the outer wall of the rotor at the bottom. A first spring, in conjunction with the housing, maintains a close clamping state between the outer wall of the clamping blocks and the outer wall of the rotor, thus preventing shaking due to inertia during installation. However, the inventors discovered the following problem with the existing technology during the development of this utility model: the aforementioned turbine rotor installation device lacks the function of adjusting the installation angle during use. This makes it difficult to accurately place the rotor inside the turbine housing, potentially leading to collisions and damage to the rotor during installation.

[0004] In view of this, the present invention proposes a turbine rotor installation device to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a turbine rotor installation device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a turbine rotor installation device, including a base, a longitudinal screw rotatably connected to the upper surface of the base, and a first servo motor for driving the longitudinal screw to rotate fixedly installed on the surface of the base, a movable seat threadedly connected to the surface of the longitudinal screw, a first drive box provided on the top of the movable seat, a first vertical shaft rotatably connected to the top of the first drive box, a first swing assembly provided between the first drive box and the first vertical shaft, a boom fixedly installed on the top of the first vertical shaft, a connecting plate fixedly installed at the other end of the boom, a first hydraulic rod embedded in the surface of the connecting plate, a lifting plate fixedly installed at the telescopic end of the first hydraulic rod, a second drive box fixedly installed at the bottom end of the lifting plate, a second vertical shaft rotatably connected to the bottom end of the second drive box, and a second swing assembly provided between the second drive box and the second vertical shaft, a beam fixedly installed at the bottom end of the second vertical shaft, two adjusting seats symmetrically arranged on the bottom side of the beam, a fine-tuning plate provided at the bottom end of each of the two adjusting seats, and a lifting ring for attaching an external lifting rope welded to the bottom end of the fine-tuning plate;

[0007] The first swing assembly includes a second hydraulic rod embedded in the surface of the first drive box. The telescopic end of the second hydraulic rod extends into the interior of the first drive box and is fixedly mounted with a rack. A gear plate is fixedly mounted on the surface of the first vertical shaft, and the rack meshes with the gear plate.

[0008] The second oscillating assembly includes a second servo motor fixedly mounted on the surface of the second drive box. The output shaft of the second servo motor extends into the interior of the second drive box and is fixedly mounted with a worm gear. A worm wheel is fixedly mounted on the surface of the second vertical shaft, and the worm gear meshes with the worm wheel.

[0009] As a further description of the above technical solution: the upper surface of the base has several mounting holes at the four corners; by setting the mounting holes and inserting bolts inside the mounting holes, the base can be firmly fixed to the external structure.

[0010] As a further description of the above technical solution: the upper surface of the base is provided with a slide rail, and the movable seat is slidably connected to the surface of the slide rail; by providing the slide rail, the stability of the movable seat when moving can be improved and the movable seat can be prevented from shaking.

[0011] As a further description of the above technical solution: a balance disc is welded to the bottom end of the boom, and a number of support balls are arranged in a circumferential array on the upper surface of the moving seat. The arc surface of the support balls abuts against the lower surface of the balance disc. By setting the balance disc and support balls, the support balls continuously provide rolling support to the bottom end of the balance disc during the boom's swing, which can improve the stability of the boom during swing.

[0012] As a further description of the above technical solution: a first limiting slide rod is fixedly installed on the surface of the lifting plate, and the first limiting slide rod is slidably connected to the surface of the connecting plate; by setting the first limiting slide rod, the stability of the lifting plate when moving can be improved, and the purpose of anti-torsion protection can be achieved for the telescopic end of the first hydraulic rod.

[0013] As a further description of the above technical solution: the adjusting seat and the beam frame are movably installed. A limiting groove is opened at the bottom of the beam frame. The adjusting seat is slidably connected to the limiting groove, and the inner wall of the limiting groove is rotatably connected to a positive and negative threaded rod. Two adjusting seats are symmetrically threaded to the threaded surfaces on both sides of the positive and negative threaded rod. A third servo motor that drives the positive and negative threaded rod to rotate is fixedly installed on the back of the beam frame. By movably installing the adjusting seat and the beam frame, and using the third servo motor to drive the positive and negative threaded rod to rotate, the distance between the two adjusting seats and the lifting ring can be adjusted, thereby facilitating the adjustment of the lifting position and making it flexible in use.

[0014] As a further description of the above technical solution: the fine-tuning plate and the adjusting seat are movably installed, and a third hydraulic rod is embedded at the bottom end of the adjusting seat. The telescopic end of the third hydraulic rod is fixed to the upper surface of the fine-tuning plate. Because the fine-tuning plate and the adjusting seat are movably installed, when the rotor is lifted, the third hydraulic rod can be telescopically extended to drive the fine-tuning plate to rise and fall, thereby adjusting the level of the rotor and avoiding different heights at both ends of the rotor after it is lifted, thus further ensuring the accuracy of rotor installation.

[0015] As a further description of the above technical solution: a second limiting slide rod is fixedly installed on the surface of the fine-tuning plate, and the second limiting slide rod is slidably connected to the adjusting seat; by setting the second limiting slide rod, the stability of the fine-tuning plate during lifting and lowering can be improved, and the purpose of anti-torsion protection can be achieved for the telescopic end of the third hydraulic rod.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. Compared with existing technologies, this turbine rotor installation equipment uses ropes to be attached to the surfaces of two lifting rings. The turbine rotor is pulled by these ropes, and the lifting rings are raised and lowered via the extension and retraction of a first hydraulic rod, achieving the purpose of lifting and installing the rotor. During operation, a first servo motor drives a longitudinal screw to rotate, which in turn moves a movable seat to adjust the installation position. A first swing assembly uses a second hydraulic rod to extend and retract, moving a rack. Based on the meshing of the rack and gear, the angles of the boom and beam can be adjusted. A second swing assembly uses a second servo motor to drive a worm gear to rotate. Based on the meshing of the worm and worm wheel, the angle of the beam can be adjusted, thus facilitating the adjustment of the rotor installation angle. This ensures the rotor is stably installed inside the turbine casing, guaranteeing the accuracy of the rotor installation.

[0018] 2. Compared with existing technologies, this turbine rotor installation equipment, by setting mounting holes and inserting bolts inside the mounting holes, can firmly fix the base to the external structure; by setting slide rails, it can improve the stability of the moving seat during movement and prevent the moving seat from shaking; by setting a balance disc and support balls, the support balls continuously roll and support the bottom end of the balance disc during the swing of the boom, which can improve the stability of the boom during swing; by setting a first limit slide bar, it can improve the stability of the lifting plate during movement and achieve the purpose of anti-torsion protection for the extension end of the first hydraulic rod.

[0019] 3. Compared with existing technologies, this turbine rotor installation equipment, through the movable installation between the adjusting seat and the beam frame, utilizes a third servo motor to drive the positive and negative threaded screws to rotate, enabling adjustment of the distance between the two adjusting seats and the lifting ring. This facilitates adjustment of the lifting position and provides flexibility in use. The movable installation between the fine-tuning plate and the adjusting seat allows the third hydraulic rod to extend and retract, raising and lowering the fine-tuning plate during rotor lifting to adjust the rotor's levelness, preventing uneven heights at both ends after lifting and further ensuring the accuracy of rotor installation. The inclusion of a second limit slide bar enhances the stability of the fine-tuning plate during lifting and provides anti-torsion protection for the extension and retraction ends of the third hydraulic rod. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0021] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0022] Figure 3 This is a cross-sectional perspective view of the first drive box of this utility model;

[0023] Figure 4 This is a cross-sectional perspective view of the second drive box of this utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of this utility model from a perspective;

[0025] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0026] The attached figures are labeled as follows: 1. Base; 2. Longitudinal screw; 3. First servo motor; 4. Moving seat; 5. First drive box; 6. First vertical shaft; 7. Hoist; 8. Connecting plate; 9. First hydraulic rod; 10. Lifting plate; 11. Second drive box; 12. Second vertical shaft; 13. Beam frame; 14. Adjusting seat; 15. Fine-tuning plate; 16. Lifting ring; 17. Second hydraulic rod; 18. Rack; 19. Gear plate; 20. Second servo motor; 21. Worm gear; 22. Worm wheel; 23. Mounting hole; 24. Slide rail; 25. Balance disc; 26. Support ball; 27. First limit slide rod; 28. Positive and negative thread screw; 29. ​​Third servo motor; 30. Third hydraulic rod; 31. Second limit slide rod. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The turbine rotor installation equipment involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Reference Figures 1 to 6 This utility model provides a turbine rotor installation device, including a base 1, and a plurality of installation holes 23 are provided at the four corners of the upper surface of the base 1.

[0029] By setting mounting holes 23 and inserting bolts inside the mounting holes 23, the base 1 can be firmly fixed to the external structure. During installation, the entire device can be connected to the external power control system, and the start and stop of the entire device can be controlled by the external control console.

[0030] A longitudinal screw 2 is rotatably connected to the upper surface of the base 1, and a first servo motor 3 that drives the longitudinal screw 2 to rotate is fixedly installed on the surface of the base 1. A movable seat 4 is threadedly connected to the surface of the longitudinal screw 2. A first drive box 5 is provided on the top of the movable seat 4. A first vertical shaft 6 is rotatably connected to the top of the first drive box 5. A first swing assembly is provided between the first drive box 5 and the first vertical shaft 6. A boom 7 is fixedly installed on the top of the first vertical shaft 6. A connecting plate 8 is fixedly installed on the other end of the boom 7. A first hydraulic rod is embedded in the surface of the connecting plate 8. 9. A lifting plate 10 is fixedly installed at the telescopic end of the first hydraulic rod 9. A second drive box 11 is fixedly installed at the bottom end of the lifting plate 10. A second vertical shaft 12 is rotatably connected to the bottom end of the second drive box 11. A second swing assembly is provided between the second drive box 11 and the second vertical shaft 12. A beam frame 13 is fixedly installed at the bottom end of the second vertical shaft 12. Two adjusting seats 14 are symmetrically arranged on the bottom side of the beam frame 13. A fine-tuning plate 15 is provided at the bottom end of each of the two adjusting seats 14. A lifting ring 16 for attaching an external lifting rope is welded to the bottom end of the fine-tuning plate 15.

[0031] The first swing assembly includes a second hydraulic rod 17 embedded in the surface of the first drive box 5. The telescopic end of the second hydraulic rod 17 extends into the interior of the first drive box 5 and is fixedly mounted with a rack 18. A gear plate 19 is fixedly mounted on the surface of the first vertical shaft 6, and the rack 18 meshes with the gear plate 19.

[0032] The second oscillating assembly includes a second servo motor 20 fixedly mounted on the surface of the second drive box 11. The output shaft of the second servo motor 20 extends into the interior of the second drive box 11 and is fixedly mounted with a worm gear 21. A worm wheel 22 is fixedly mounted on the surface of the second vertical shaft 12, and the worm gear 21 meshes with the worm wheel 22.

[0033] When using this turbine rotor installation equipment, external ropes are attached to the surfaces of two lifting rings 16. The turbine rotor is pulled by the ropes, and the lifting rings 16 are raised and lowered by the extension and retraction of the first hydraulic rod 9, thus achieving the purpose of lifting and installing the rotor. During operation, the longitudinal screw 2 is driven to rotate by the first servo motor 3, which moves the moving seat 4 to adjust the installation position. Through the first swing assembly, the rack 18 is moved by the extension and retraction of the second hydraulic rod 17. Based on the meshing of the rack 18 and the gear plate 19, the angle of the boom 7 and the beam frame 13 can be adjusted. By setting the second swing assembly, the worm 21 is driven to rotate by the second servo motor 20. Based on the meshing of the worm 21 and the worm wheel 22, the angle of the beam frame 13 can be further adjusted, which facilitates the adjustment of the rotor installation angle, meets the purpose of stably installing the rotor inside the turbine casing, and ensures the accuracy of rotor installation.

[0034] It is worth noting that the deflection angle of the second vertical axis 12 is limited due to the constraints of pipeline laying and installation.

[0035] The upper surface of the base 1 is provided with a slide rail 24, and the movable seat 4 is slidably connected to the surface of the slide rail 24.

[0036] Furthermore, by setting the slide rail 24, the stability of the moving seat 4 during movement can be improved, and the moving seat 4 can be prevented from shaking.

[0037] A balance disc 25 is welded to the bottom of the boom 7. Several support balls 26 are arranged in a circular array on the upper surface of the movable seat 4. The arc surface of the support balls 26 abuts against the lower surface of the balance disc 25.

[0038] It is worth noting that by setting up the balance disc 25 and the support ball 26, the support ball 26 continuously rolls and supports the bottom of the balance disc 25 during the swing of the boom 7, which can improve the stability of the boom 7 when it swings.

[0039] A first limiting slide bar 27 is fixedly installed on the surface of the lifting plate 10, and the first limiting slide bar 27 is slidably connected to the surface of the connecting plate 8.

[0040] Furthermore, by setting the first limiting slide bar 27, the stability of the lifting plate 10 during movement can be improved, and the purpose of anti-torsion protection can be achieved for the telescopic end of the first hydraulic rod 9.

[0041] The adjusting seat 14 and the beam frame 13 are movably installed. The bottom end of the beam frame 13 is provided with a limiting groove. The adjusting seat 14 is slidably connected to the limiting groove, and the inner wall of the limiting groove is rotatably connected to the positive and negative thread screws 28. The two adjusting seats 14 are symmetrically threaded to the two threaded surfaces of the positive and negative thread screws 28. The back of the beam frame 13 is fixedly installed with a third servo motor 29 that drives the positive and negative thread screws 28 to rotate.

[0042] Reference Figure 5 and Figure 6 It is worth noting that the turbine rotor installation equipment is installed movably between the adjusting seat 14 and the beam frame 13. The third servo motor 29 drives the positive and negative thread screws 28 to rotate, which can adjust the distance between the two adjusting seats 14 and the lifting ring 16, thereby facilitating the adjustment of the lifting position and making it flexible to use.

[0043] The fine-tuning plate 15 and the adjusting seat 14 are movably installed. The bottom end of the adjusting seat 14 is fitted with a third hydraulic rod 30, and the telescopic end of the third hydraulic rod 30 is fixed to the upper surface of the fine-tuning plate 15.

[0044] It is worth noting that, because the fine-tuning plate 15 and the adjusting seat 14 are movable, when the rotor is lifted, the fine-tuning plate 15 can be raised and lowered by the extension and retraction of the third hydraulic rod 30 to adjust the level of the rotor, so as to avoid the difference in height between the two ends of the rotor after it is lifted, and further ensure the accuracy of rotor installation.

[0045] A second limiting slide bar 31 is fixedly installed on the surface of the fine-tuning plate 15, and the second limiting slide bar 31 is slidably connected to the adjusting seat 14.

[0046] Furthermore, by setting a second limit slide bar 31, the stability of the fine-tuning plate 15 during lifting and lowering can be improved, and the purpose of anti-torsion protection can be achieved for the telescopic end of the third hydraulic rod 30.

[0047] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A steam turbine rotor mounting apparatus comprising a base (1) characterised in that: The upper surface of the base (1) is rotationally connected with a longitudinal screw rod (2), and the surface of the base (1) is fixedly installed with a first servo motor (3) for driving the rotation of the longitudinal screw rod (2), the surface of the longitudinal screw rod (2) is threadedly connected with a moving seat (4), the top of the moving seat (4) is provided with a first drive box (5), the top of the first drive box (5) is rotationally connected with a first vertical shaft (6), a first swing assembly is arranged between the first drive box (5) and the first vertical shaft (6), the top of the first vertical shaft (6) is fixedly installed with a hanging arm (7), the other end of the hanging arm (7) is fixedly installed with a connecting plate (8), the surface of the connecting plate (8) is embedded with a first hydraulic rod (9), the telescopic end of the first hydraulic rod (9) is fixedly installed with a lifting plate (10), the bottom end of the lifting plate (10) is fixedly installed with a second drive box (11), the bottom end of the second drive box (11) is rotationally connected with a second vertical shaft (12), and a second swing assembly is arranged between the second drive box (11) and the second vertical shaft (12), the bottom end of the second vertical shaft (12) is fixedly installed with a beam frame (13), two adjusting seats (14) are symmetrically arranged on the bottom side of the beam frame (13), the bottom end of each of the two adjusting seats (14) is provided with a fine adjustment plate (15), and the bottom end of the fine adjustment plate (15) is welded with a lifting ring (16) for bolting an external lifting rope. The first swing assembly comprises a second hydraulic rod (17) embedded on the surface of the first drive box (5), the telescopic end of the second hydraulic rod (17) extends into the interior of the first drive box (5) and is fixedly installed with a rack (18), the surface of the first vertical shaft (6) is fixedly installed with a toothed disc (19), and the rack (18) is engaged with the toothed disc (19). The second swing assembly comprises a second servo motor (20) fixedly installed on the surface of the second drive box (11), the output shaft of the second servo motor (20) extends into the interior of the second drive box (11) and is fixedly installed with a worm (21), the surface of the second vertical shaft (12) is fixedly installed with a worm wheel (22), and the worm (21) is engaged with the worm wheel (22).

2. A steam turbine rotor installation apparatus according to claim 1, characterized in that: A plurality of mounting holes (23) are formed at the corners of the upper surface of the base (1).

3. A steam turbine rotor installation apparatus according to claim 1, wherein: The upper surface of the base (1) is provided with a sliding rail (24), and the moving seat (4) is slidingly connected to the surface of the sliding rail (24).

4. A steam turbine rotor installation apparatus according to claim 1, characterized by: The bottom end of the hanging arm (7) is welded with a balance disc (25), and the upper surface of the moving seat (4) is circumferentially arranged with a plurality of supporting balls (26), and the arc surface of the supporting ball (26) is tightly abutted against the lower surface of the balance disc (25).

5. A steam turbine rotor installation apparatus according to claim 1, wherein: The surface of the lifting plate (10) is fixedly installed with a first limiting sliding rod (27), and the surface of the connecting plate (8) is slidingly connected with the first limiting sliding rod (27).

6. A steam turbine rotor installation apparatus according to claim 1, wherein: The adjusting seat (14) is movably installed between the beam frame (13), the bottom end of the beam frame (13) is provided with a limiting sliding groove, the adjusting seat (14) is slidably connected with the limiting sliding groove, the inner wall of the limiting sliding groove is rotatably connected with a reversible screw rod (28), the two adjusting seats (14) are symmetrically and threadedly connected on the two threaded surfaces of the reversible screw rod (28), and the back surface of the beam frame (13) is fixedly installed with a third servo motor (29) for driving the reversible screw rod (28) to rotate.

7. A steam turbine rotor installation apparatus according to claim 1, wherein: The fine adjustment plate (15) is movably installed between the adjusting seat (14), and the bottom end of the adjusting seat (14) is embedded with a third hydraulic rod (30); the telescopic end of the third hydraulic rod (30) is fixed with the upper surface of the fine adjustment plate (15).

8. A steam turbine rotor installation apparatus according to claim 7, characterised in that: The surface of the fine adjustment plate (15) is fixedly installed with a second limiting sliding rod (31), and the second limiting sliding rod (31) is slidably connected with the adjusting seat (14).

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