Lifting tool for steam turbine rotor

Abstract

The invention discloses a hoisting tool for a steam turbine rotor, and belongs to the technical field of hoisting equipment, the hoisting tool for the steam turbine rotor comprises a cross beam and two groups of hoisting frames, the two groups of hoisting frames are symmetrically arranged on two sides of the cross beam, the hoisting frames are slidably connected to the cross beam, and hoisting parts are connected below the hoisting frames. Longitudinal beams are symmetrically and fixedly connected to the two ends of the cross beam, adjusting components are slidably connected to the tops of the longitudinal beams, auxiliary mooring ropes are hung at the bottoms of the longitudinal beams, and traction ropes are arranged at the tops of the longitudinal beams. The lifting belt is used for lifting the steam turbine rotor, compared with cable lifting, the lifting belt is more stable, stress of the lifting belt can be adjusted, accidents caused by uneven stress are avoided, meanwhile, the cable is assisted to lift the steam turbine rotor together, it is guaranteed that the steam turbine rotor is stably lifted, the steam turbine rotor is prevented from falling off when the lifting belt breaks down, and serious accidents are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting equipment, and in particular relates to a steam turbine rotor lifting tool. Background Art

[0002] The steam turbine rotor is one of the key components of the steam turbine rotor. It is the core component of the steam turbine rotor and is responsible for converting the energy of steam into mechanical energy. The design and manufacture of steam turbine rotors require very high precision because they need to withstand the centrifugal force caused by high-speed rotation and the effects of high-temperature and high-pressure steam. It is usually made of high-strength alloy steel and has a very large weight. When repairing or replacing it, special lifting tools are required to safely move the rotor.

[0003] Traditional steam turbine rotor lifting tools usually consist of a crossbeam and two symmetrical hoists on the crossbeam. Although the balance of the steam turbine rotor can be ensured by adjusting the cables before lifting, the traditional steam turbine rotor lifting tools only have two lifting points. If one lifting point fails, a major accident will occur. In addition, the traditional steam turbine rotor lifting tools cannot adjust the stress state of each cable, resulting in uneven stress on the cables. It is possible that some cables are overstressed and fatigued, which may cause serious accidents such as cable breakage. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a turbine rotor lifting tool. The present invention lifts the turbine rotor by a sling, which is more stable than cable lifting, and the force of the sling can be adjusted to avoid accidents caused by uneven force. At the same time, the auxiliary cable lifts the turbine rotor together to ensure the stable lifting of the turbine rotor and prevent the turbine rotor from falling when the sling fails, thereby avoiding serious accidents. The setting of the adjustment mechanism and the traction rope can help to steer the turbine rotor after lifting, saving manpower and avoiding the danger caused by manually pulling the traction rope to turn.

[0005] The technical solution adopted to solve the above technical problems is: a steam turbine rotor lifting tool, comprising a crossbeam and a hanger, wherein the hangers are symmetrically arranged on both sides of the crossbeam in two groups, the hangers are slidably connected to the crossbeam, a lifting component is connected below the hanger, longitudinal beams are symmetrically fixedly connected at both ends of the crossbeam, an adjusting component is slidably connected to the top of the longitudinal beam, an auxiliary cable is suspended at the bottom of the longitudinal beam, and a traction rope is arranged on the top of the longitudinal beam; A main lifting lug is fixedly connected to the top of the crossbeam, and the main lifting lug is connected to the crane hook; The adjusting component can adjust the distance between the two hangers; The adjusting component can retract and release the traction rope.

[0006] Through the above technical scheme, the crossbeam can be lifted by a crane, and the lifting components under the hanger can be connected to the turbine rotor, so that the crane can lift the turbine rotor. The auxiliary cable arranged on the longitudinal beam is connected to the turbine rotor, and four lifting points of the turbine rotor can be added symmetrically front and back, so that the turbine rotor is more stable when suspended in the air, and the shaking caused by the suspended movement of the turbine rotor is reduced, so that the force on the turbine rotor and each connecting rope of the lifting is more uniform. At the same time, when the lifting components fail, the auxiliary cable can take over the lifting components to bear the main force to prevent accidents. By adjusting the distance between the two hangers by adjusting the components, the balance of the suspended turbine rotor can be ensured. By adjusting the components to retract and release the traction rope, the turbine rotor can be helped to turn when suspended in the air, avoiding the danger of turning the traction rope by human power.

[0007] Furthermore, a first control motor is symmetrically fixedly connected below the hanger, and the lifting component includes a sling and an adjusting shaft. The adjusting shaft is rotatably connected below the hanger, and both ends of the sling are clamped on the adjusting shaft. The rotating shaft of the first control motor is fixedly connected to the adjusting shaft.

[0008] Through the above technical solution, since the adjusting shaft is rotatably connected under the hanger, the two ends of the sling are clamped on the adjusting shaft, and the rotating shaft of the first control motor is fixedly connected to the adjusting shaft, the first control motor can drive the adjusting shaft to rotate forward or reverse, thereby driving the retraction and extension of the sling.

[0009] Furthermore, clamps are fixedly connected at both ends of the sling, a clamping slot is provided on the adjusting shaft, and an avoidance slot is provided on one side below the hanger, and the clamping member can be clamped in the clamping slot.

[0010] Through the above technical scheme, since the two ends of the sling are fixedly connected with clamps, a clamping groove is provided on the adjusting shaft, and an avoidance groove is provided on the lower side of the hanger, the clamping piece can be clamped in the clamping groove, so that before the lifting starts, the clamping piece at one end of the sling can be removed from the adjusting shaft, so that one end of the sling can be detached from the adjusting shaft, and then the sling is passed through the bottom of the turbine rotor, and then the removed clamping piece is reset, and the sling is tightened to complete the connection between the lifting components and the turbine rotor. The operation is simple and convenient, and the work efficiency is high.

[0011] Furthermore, a guide rail is symmetrically fixedly connected to the top of the crossbeam, a screw rod is rotatably connected to the top of the guide rail, a sliding seat is provided at the bottom of the hanger, the sliding seat is slidably connected to the guide rail, the screw rod penetrates the hanger, and the hanger is threadedly connected to the screw rod.

[0012] Through the above technical solution, since the guide rail is symmetrically fixedly connected to the top of the beam, a screw is rotatably connected above the guide rail, a sliding seat is provided at the bottom of the hanger, the sliding seat is slidably connected to the guide rail, the screw passes through the hanger, and the hanger is threadedly connected to the screw, so that the rotation of the screw can drive the sliding seat to slide horizontally on the guide rail, thereby realizing the adjustment of the distance between the two hangers.

[0013] Furthermore, an adjustment rail is provided on the top of the longitudinal beam, and the adjustment component is slidably connected to the adjustment rail. The adjustment component includes an adjustment base, a rope winding roller, an adjustment rod and a second control motor. The adjustment base is slidably connected to the adjustment rail, and the rope winding roller is rotatably connected to the adjustment base. The second control motor is fixedly connected to one side of the adjustment base, and the adjustment rod is rotatably connected to the other side of the adjustment base, and the rotating shaft of the second control motor is fixedly connected to the rope winding roller.

[0014] Through the above technical solution, since the rope winding roller is rotatably connected to the adjustment base, a second control motor is fixedly connected to one side of the adjustment base, and the rotating shaft of the second control motor is fixedly connected to the rope winding roller, the second control motor can drive the rope winding roller to rotate forward or reverse.

[0015] Furthermore, the traction rope is wound around a rope winding roller, and guide rings are fixedly connected to both ends of the top of the longitudinal beam, and the traction rope passes through the guide rings.

[0016] Through the above technical solution, since the traction rope is wound on the rope roller, the two ends of the top of the longitudinal beam are fixedly connected with guide rings, and the traction rope passes through the guide rings, so that when the second control motor drives the rope roller to rotate forward or reverse, it can drive the two ends of the traction rope to be retracted and released. When the steam turbine rotor needs to be turned in the suspended state, it is only necessary to fix the end of the traction rope in the turning direction on the ground or on the wall at the same level as the longitudinal beam, and start the second control motor to retract the traction rope to complete the turning. Compared with the operator manually pulling the traction rope to operate the turning, since the steam turbine rotor is heavy, it is difficult for one person to pull it, and multiple people operating under the suspended steam turbine rotor are prone to danger; Secondly, when operating the steering, the end of the traction rope opposite to the steering direction can also be fixed on the ground or on a wall at the same level as the longitudinal beam, which can effectively prevent oversteering. The operation is simple, effectively improves the operating efficiency, and reduces the suspension time of the turbine rotor.

[0017] Furthermore, a driving gear is fixedly connected to a side of the rope winding roller close to the adjusting rod, a driven gear is arranged on the adjusting rod, and the driving gear is meshed with the driven gear.

[0018] Through the above technical solution, since the rope winding roller is fixedly connected to the side close to the adjusting rod, a driven gear is provided on the adjusting rod, and the driving gear is meshed with the driven gear, the adjusting rod can be driven to rotate when the second control motor drives the rope winding roller to rotate.

[0019] Furthermore, electric push rods are fixedly connected to both ends of the crossbeam, and the top end of the electric push rods is fixedly connected to the adjustment base.

[0020] Through the above technical solution, since electric push rods are fixedly connected to both ends of the beam and the top of the electric push rods is fixedly connected to the adjustment base, the electric push rods can drive the adjustment base to slide horizontally, that is, drive the adjustment component to move closer to or away from the screw.

[0021] Furthermore, a sleeve is fixedly provided at one end of the adjusting rod close to the screw rod, and a clamping block is fixedly provided at one end of the screw rod close to the adjusting rod, and the clamping block can be clamped in the sleeve.

[0022] Through the above technical scheme, since the adjusting rod is fixedly provided with a sleeve near one end of the screw rod, and the screw rod is fixedly provided with a block near one end of the adjusting rod, the block can be stuck in the sleeve, so that when the electric push rod drives the adjusting component to approach the screw rod, the block on the screw rod can be stuck in the sleeve, so that the second control motor drives the rope winding roller to rotate forward or reverse, thereby driving the adjusting rod to rotate forward and reverse, and can drive the screw rod to rotate forward or reverse, that is, adjust the distance between the two hangers, and when the electric push rod drives the adjusting component away from the screw rod, the block on the screw rod is disconnected from the sleeve, and the second control motor can drive the rope winding roller alone.

[0023] Furthermore, a lifting ring is symmetrically fixedly connected to the bottom of the longitudinal beam, a mounting ring is fixedly provided on the top of the auxiliary cable, a hook is fixedly provided on the bottom of the auxiliary cable, and the auxiliary cable is suspended at the bottom of the longitudinal beam through the cooperation of the lifting ring and the mounting ring.

[0024] Through the above technical solution, since a mounting ring is fixedly provided on the top of the auxiliary cable and a hook is fixedly provided on the bottom of the auxiliary cable, the auxiliary cable is suspended at the bottom of the longitudinal beam through the cooperation of the lifting ring and the mounting ring, so that one end of the auxiliary cable is fixedly connected to the bottom of the longitudinal beam without hindering the connection direction of the other end of the auxiliary cable, and the hook can be fixedly connected to the turbine rotor, and finally the turbine rotor is added with four front-to-back symmetrical lifting points, which effectively ensures the stability of the turbine rotor when it is suspended.

[0025] The beneficial effects of the present invention are as follows: (1) In the present invention, the first control motor can drive the adjustment shaft to rotate forward or reverse. When the adjustment shaft rotates forward, the sling can be tightened, and when the adjustment shaft rotates reversely, the sling can be loosened, so that the slings in front and behind the steam turbine rotor can be adjusted to be tight, thereby preventing the front and rear slings from being unevenly stressed, and some slings from being overstressed and fatigued, resulting in fracture and other accidents; (2) In the present invention, the hook is fixedly connected to the steam turbine rotor, so that four front-to-back symmetrical hanging points are added to the steam turbine rotor, which effectively ensures the stability of the steam turbine rotor when it is suspended in the air and reduces the shaking caused by the steam turbine rotor when it moves in the air. At the same time, when the lifting component fails, the auxiliary cable can take over the main force of the lifting component to prevent accidents; (3) When the steam turbine rotor in the present invention needs to be turned in a suspended state, it is only necessary to fix the end of the traction rope in the turning direction on the ground or on a wall at the same level as the longitudinal beam, and start the second control motor to retract the traction rope to complete the turning. Compared with the operator manually pulling the traction rope to operate the turning, since the steam turbine rotor is heavy and it is difficult for one person to pull it, it is easy to cause danger when multiple people operate under the suspended steam turbine rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a steam turbine rotor lifting tool of the present invention; Figure 2 It is a structural schematic diagram of the coordination of a crossbeam, a hanger and a hoisting component of a steam turbine rotor hoisting tool of the present invention; Figure 3 It is a structural schematic diagram of a hanger and a hoisting component of a steam turbine rotor hoisting tool of the present invention; Figure 4 It is a schematic diagram of the exploded structure of a hanger and hoisting components of a steam turbine rotor hoisting tool of the present invention; Figure 5 The invention relates to a steam turbine rotor lifting tool. Figure 4 A partial enlarged picture of the part at B in the middle; Figure 6 It is a schematic structural diagram of the cooperation between a crossbeam and a hanger of a steam turbine rotor lifting tool of the present invention; Figure 7 It is a schematic diagram of the exploded structure of the crossbeam and the hanger of a steam turbine rotor lifting tool of the present invention; Figure 8 It is a schematic structural diagram of the coordination between a longitudinal beam and an adjusting component of a steam turbine rotor lifting tool of the present invention; Fig. 9 It is a schematic structural diagram of the cooperation between the adjusting component and the traction rope of a steam turbine rotor lifting tool of the present invention; Fig.10 It is a schematic diagram of the exploded structure of an adjustment component and a traction rope of a steam turbine rotor lifting tool of the present invention; Fig.11 The invention relates to a steam turbine rotor lifting tool. Figure 1 The structural diagram at A in the middle; Fig.12 It is a structural schematic diagram of a longitudinal beam of a steam turbine rotor lifting tool of the present invention; Fig.13 The utility model is a schematic diagram of the auxiliary cable structure of a steam turbine rotor lifting tool of the present invention.

[0027] 1. Crossbeam; 2. Hanger; 3. Lifting component; 4. Longitudinal beam; 5. Adjustment component; 6. Auxiliary cable; 7. Traction rope; 11. Main lifting lug; 12. Guide rail; 13. Screw; 14. Electric push rod; 131. Block; 21. Sliding seat; 22. First control motor; 23. Avoidance groove; 31. Sling; 32. Adjustment shaft; 311. Card; 321. Slot; 41. Adjustment rail; 42. Lifting ring; 43. Guide ring; 51. Adjustment base; 52. Rope winding roller; 53. Adjustment rod; 54. Second control motor; 521. Driving gear; 531. Driven gear; 532. Sleeve; 61. Mounting ring; 62. Hook. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figure 1 - Figure 2 As shown, a steam turbine rotor lifting tool comprises a cross beam 1 and a hanger 2. The hangers 2 are symmetrically arranged on both sides of the cross beam 1 in two groups. The hangers 2 are slidably connected to the cross beam 1. A lifting component 3 is connected below the hanger 2. Longitudinal beams 4 are symmetrically fixedly connected at both ends of the cross beam 1. An adjusting component 5 is slidably connected to the top of the longitudinal beam 4. An auxiliary cable 6 is suspended at the bottom of the longitudinal beam 4. A traction rope 7 is arranged on the top of the longitudinal beam 4. A main lifting lug 11 is fixedly connected to the top of the crossbeam 1, and the main lifting lug 11 is connected to the crane hook; The adjusting component 5 can adjust the distance between the two hangers 2; The adjusting component 5 can retract and release the traction rope 7.

[0030] In this embodiment, the crossbeam 1 can be lifted by a crane, and the lifting component 3 under the hanger 2 can be connected to the turbine rotor, so that the crane can lift the turbine rotor. The auxiliary cable 6 arranged on the longitudinal beam 4 is connected to the turbine rotor, and four lifting points of the turbine rotor can be added symmetrically front and back, so that the turbine rotor is more stable when suspended in the air, and the shaking generated when the turbine rotor moves in the air is reduced, so that the force on the turbine rotor and each connecting rope for lifting is more uniform. At the same time, when the lifting component 3 fails, the auxiliary cable 6 can take over the lifting component 3 to bear the main force to prevent accidents. By adjusting the distance between the two hangers 2 by adjusting the component 5, the balance of the suspended turbine rotor can be ensured. By adjusting the component 5 to retract and release the traction rope 7, the turbine rotor can be helped to turn when suspended in the air, avoiding the danger of turning the traction rope 7 by human power.

[0031] like Figure 2 - Figure 5 As shown, a first control motor 22 is symmetrically fixedly connected below the hanger 2, and the hoisting component 3 includes a sling 31 and an adjusting shaft 32. The adjusting shaft 32 is rotatably connected below the hanger 2, and both ends of the sling 31 are clamped on the adjusting shaft 32. The rotating shaft of the first control motor 22 is fixedly connected to the adjusting shaft 32; The two ends of the sling 31 are fixedly connected with clamping pieces 311 , the adjusting shaft 32 is provided with a clamping slot 321 , and a side below the hanger 2 is provided with an avoidance slot 23 , and the clamping piece 311 can be clamped in the clamping slot 321 .

[0032] In this embodiment, before the lifting begins, the clamp 311 at one end of the sling 31 can be removed from the adjusting shaft 32, so that one end of the sling 31 can be separated from the adjusting shaft 32, and then the sling 31 is passed through the bottom of the steam turbine rotor, and then the removed clamp 311 is reset, and the sling 31 is tightened to complete the connection between the lifting component 3 and the steam turbine rotor, which is simple and convenient to operate and has high work efficiency; The first control motor 22 can drive the adjustment shaft 32 to rotate forward or reverse. When the adjustment shaft 32 rotates forward, the sling 31 can be tightened, and when the adjustment shaft 32 rotates reversely, the sling 31 can be loosened, so that the slings 31 in front and behind the turbine rotor can be adjusted to be tight, so as to prevent the front and rear slings 31 from being subjected to uneven force, and some slings 31 from being subjected to excessive force and fatigue, resulting in fracture and other accidents. Secondly, when lifting a steam turbine rotor or other heavy objects, the lifting belt 31 can be tightened on one side of the lifting belt 31 and loosened on the other side of the lifting belt 31 to achieve the flipping of the heavy objects, thereby improving the utilization rate of the lifting component 3.

[0033] like Figure 6 - Figure 7 As shown, the top of the crossbeam 1 is symmetrically fixedly connected with a guide rail 12, the upper part of the guide rail 12 is rotatably connected with a screw rod 13, a sliding seat 21 is provided at the bottom of the hanger 2, the sliding seat 21 is slidably connected with the guide rail 12, the screw rod 13 passes through the hanger 2, and the hanger 2 is threadedly connected with the screw rod 13.

[0034] In this embodiment, the rotation of the screw 13 can drive the sliding seat 21 to slide horizontally on the guide rail 12, that is, to adjust the distance between the two hangers 2. The adjustable distance between the two hangers 2 not only allows the lifting component 3 to adapt to turbine rotors of different sizes, but also because the mass of the turbine rotor is not uniform, adjusting the distance between the two hangers 2 can ultimately allow the turbine rotor to remain horizontal when suspended in the air, thereby preventing accidental collisions when the turbine rotor is suspended and moving, causing irreparable losses.

[0035] like Figure 8 - Fig.12 As shown, an adjustment rail 41 is provided on the top of the longitudinal beam 4, and the adjustment component 5 is slidably connected to the adjustment rail 41. The adjustment component 5 includes an adjustment base 51, a rope winding roller 52, an adjustment rod 53 and a second control motor 54. The adjustment base 51 is slidably connected to the adjustment rail 41, and the rope winding roller 52 is rotatably connected to the adjustment base 51. The second control motor 54 is fixedly connected to one side of the adjustment base 51, and the adjustment rod 53 is rotatably connected to the other side of the adjustment base 51. The rotating shaft of the second control motor 54 is fixedly connected to the rope winding roller 52. The traction rope 7 is wound around the rope winding roller 52 , and guide rings 43 are fixedly connected to both ends of the top of the longitudinal beam 4 , and the traction rope 7 passes through the guide rings 43 .

[0036] In this embodiment, the second control motor 54 can drive the rope winding roller 52 to rotate forward or reverse, thereby driving the two ends of the traction rope 7 to be retracted and released. When the steam turbine rotor needs to be turned in the suspended state, it is only necessary to fix the end of the traction rope 7 in the turning direction on the ground or on the wall at the same level as the longitudinal beam 4, and start the second control motor 54 to retract the traction rope 7 to complete the turning. Compared with the operator manually pulling the traction rope 7 to operate the turning, since the steam turbine rotor is heavy, it is difficult for a single person to pull it, and multiple people operating under the suspended steam turbine rotor are prone to danger; Secondly, when operating the steering, the end of the traction rope 7 opposite to the steering direction can also be fixed on the ground or on a wall at the same level as the longitudinal beam 4, which can effectively prevent oversteering. The operation is simple, the operating efficiency is effectively improved, and the suspension time of the turbine rotor is reduced.

[0037] like Figure 1 - Fig.11 As shown, a driving gear 521 is fixedly connected to the rope winding roller 52 near the adjusting rod 53, and a driven gear 531 is provided on the adjusting rod 53, and the driving gear 521 meshes with the driven gear 531; The two ends of the crossbeam 1 are fixedly connected with electric push rods 14, and the top of the electric push rod 14 is fixedly connected with the adjustment base 51; A sleeve 532 is fixedly provided at one end of the adjusting rod 53 close to the screw rod 13 , and a clamping block 131 is fixedly provided at one end of the screw rod 13 close to the adjusting rod 53 . The clamping block 131 can be clamped in the sleeve 532 .

[0038] In this embodiment, the electric push rod 14 can drive the adjustment base 51 to slide horizontally, that is, drive the adjustment component 5 to approach or move away from the screw 13. When the electric push rod 14 drives the adjustment component 5 to approach the screw 13, the block 131 on the screw 13 can be stuck in the sleeve 532, so that the second control motor 54 can drive the adjustment rod 53 to rotate forward or reverse, and can drive the screw 13 to rotate forward or reverse, that is, adjust the distance between the two hangers 2. When the electric push rod 14 drives the adjustment component 5 away from the screw 13, the block 131 on the screw 13 is disconnected from the sleeve 532, and the second control motor 54 can drive the rope winding roller 52 alone.

[0039] like Fig.12 - Fig.13 As shown, a lifting ring 42 is symmetrically fixedly connected to the bottom of the longitudinal beam 4, a mounting ring 61 is fixedly provided on the top of the auxiliary cable 6, and a hook 62 is fixedly provided on the bottom of the auxiliary cable 6. The auxiliary cable 6 is suspended at the bottom of the longitudinal beam 4 through the lifting ring 42 and the mounting ring 61.

[0040] In this embodiment, one end of the auxiliary cable 6 is fixedly connected to the bottom of the longitudinal beam 4 without hindering the connection direction of the other end of the auxiliary cable 6. The hook 62 can be fixedly connected to the turbine rotor, ultimately achieving four front-to-back symmetrical hanging points for the turbine rotor, effectively ensuring the stability of the turbine rotor when suspended in the air.

[0041] Working principle: During operation, the crossbeam 1 is hoisted to the top of the steam turbine rotor, and the electric push rod 14 is started. The electric push rod 14 drives the adjustment component 5 to approach the screw 13, so that the block 131 on the screw 13 is clamped in the sleeve 532, so that the second control motor 54 drives the adjustment rod 53 to rotate forward or reverse, and can drive the screw 13 to rotate forward or reverse, that is, adjust the distance between the two hangers 2, that is, adjust the positions of the two hanging points of the hoisting component 3, and ensure that the steam turbine rotor is kept horizontal when suspended in the air; Then, the cross beam 1 is lifted to make the sling 31 straight, and the first control motor 22 is started to drive the adjustment shaft 32 to rotate forward or reversely. When the adjustment shaft 32 rotates forward, the sling 31 can be tightened, and when the adjustment shaft 32 rotates reversely, the sling 31 can be loosened, so that the slings 31 before and after the turbine rotor can be adjusted to be tight, so as to prevent the front and rear slings 31 from being subjected to uneven force, and some slings 31 from being subjected to excessive force and fatigue, resulting in the occurrence of accidents such as breakage; The hook 62 is fixedly connected to the steam turbine rotor to realize the addition of four front-to-back symmetrical hanging points of the steam turbine rotor, effectively ensuring the stability of the steam turbine rotor when it is suspended in the air, reducing the shaking of the steam turbine rotor when it moves in the air, and at the same time, when the lifting component 3 fails, the auxiliary cable 6 can take over the main force of the lifting component 3 to prevent accidents; Continue to lift the crossbeam 1, and the turbine rotor is officially lifted. When steering is required during the lifting and moving process, start the electric push rod 14, which drives the adjustment component 5 away from the screw rod 13, and the block 131 on the screw rod 13 is disconnected from the sleeve 532, and the second control motor 54 can drive the rope roller 52 alone; The end of the traction rope 7 in the steering direction is fixed on the ground or on the wall at the same level as the longitudinal beam 4, and the second control motor 54 is started to retract the traction rope 7 to complete the steering. Compared with the operator manually pulling the traction rope 7 to operate the steering, since the turbine rotor is heavy, it is difficult for one person to pull it, and multiple people operating under the suspended turbine rotor are prone to danger; After the steam turbine rotor arrives at the predetermined location, the crossbeam 1 is lowered, and after the steam turbine rotor is fixed on the ground, the hoisting components 3 and the auxiliary cables 6 are removed to complete the hoisting of the steam turbine rotor.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A steam turbine rotor lifting tool, comprising a crossbeam (1) and a hanger (2), characterized in that: The hangers (2) are two groups symmetrically arranged on both sides of the cross beam (1); the hangers (2) are slidably connected to the cross beam (1); a lifting component (3) is connected below the hangers (2); longitudinal beams (4) are symmetrically fixedly connected at both ends of the cross beam (1); an adjusting component (5) is slidably connected to the top of the longitudinal beam (4); an auxiliary cable (6) is suspended at the bottom of the longitudinal beam (4); and a traction rope (7) is arranged at the top of the longitudinal beam (4); A main lifting lug (11) is fixedly connected to the top of the crossbeam (1), and the main lifting lug (11) is connected to a crane hook; The adjusting component (5) is capable of adjusting the distance between the two hangers (2); The adjusting component (5) is capable of retracting and releasing the traction rope (7).

2. A steam turbine rotor lifting tool according to claim 1, characterized in that: A first control motor (22) is symmetrically fixedly connected below the hanger (2); the hanging component (3) comprises a sling (31) and an adjustment shaft (32); the adjustment shaft (32) is rotatably connected below the hanger (2); two ends of the sling (31) are clamped on the adjustment shaft (32); and the rotating shaft of the first control motor (22) is fixedly connected to the adjustment shaft (32).

3. A steam turbine rotor lifting tool according to claim 2, characterized in that: The two ends of the sling (31) are fixedly connected with clamping pieces (311), the adjusting shaft (32) is provided with a clamping slot (321), a side below the hanger (2) is provided with an avoidance slot (23), and the clamping piece (311) can be clamped in the clamping slot (321).

4. A steam turbine rotor lifting tool according to claim 3, characterized in that: A guide rail (12) is symmetrically fixedly connected to the top of the crossbeam (1), a screw rod (13) is rotatably connected to the top of the guide rail (12), a sliding seat (21) is provided at the bottom of the hanger (2), the sliding seat (21) is slidably connected to the guide rail (12), the screw rod (13) penetrates the hanger (2), and the hanger (2) is threadedly connected to the screw rod (13).

5. A steam turbine rotor lifting tool according to claim 4, characterized in that: An adjustment rail (41) is provided on the top of the longitudinal beam (4), and the adjustment component (5) is slidably connected to the adjustment rail (41). The adjustment component (5) comprises an adjustment base (51), a rope winding roller (52), an adjustment rod (53) and a second control motor (54). The adjustment base (51) is slidably connected to the adjustment rail (41), and the rope winding roller (52) is rotatably connected to the adjustment base (51). One side of the adjustment base (51) is fixedly connected to the second control motor (54), and the other side of the adjustment base (51) is rotatably connected to the adjustment rod (53), and the rotation shaft of the second control motor (54) is fixedly connected to the rope winding roller (52).

6. A steam turbine rotor lifting tool according to claim 5, characterized in that: The traction rope (7) is wound around a rope winding roller (52), and guide rings (43) are fixedly connected to both ends of the top of the longitudinal beam (4), and the traction rope (7) passes through the guide rings (43).

7. A steam turbine rotor lifting tool according to claim 6, characterized in that: A driving gear (521) is fixedly connected to a side of the rope winding roller (52) close to the adjusting rod (53); a driven gear (531) is provided on the adjusting rod (53); and the driving gear (521) meshes with the driven gear (531).

8. A steam turbine rotor lifting tool according to claim 7, characterized in that: Electric push rods (14) are fixedly connected to both ends of the crossbeam (1), and the top end of the electric push rod (14) is fixedly connected to the adjustment base (51).

9. A steam turbine rotor lifting tool according to claim 8, characterized in that: A sleeve (532) is fixedly provided at one end of the adjusting rod (53) close to the screw rod (13), and a clamping block (131) is fixedly provided at one end of the screw rod (13) close to the adjusting rod (53), and the clamping block (131) can be clamped in the sleeve (532).

10. The steam turbine rotor lifting tool according to claim 1, characterized in that: The bottom of the longitudinal beam (4) is symmetrically fixedly connected with a lifting ring (42), the top of the auxiliary cable (6) is fixedly provided with a mounting ring (61), the bottom of the auxiliary cable (6) is fixedly provided with a hook (62), and the auxiliary cable (6) is suspended at the bottom of the longitudinal beam (4) through the cooperation of the lifting ring (42) and the mounting ring (61).

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