Novel rotor hoisting tool for steam turbine

Abstract

The utility model discloses a novel steam turbine rotor hoisting tool which comprises a cross beam, supporting plates, baffles, a steel wire rope A, a steel wire rope B, a chain block, a steel wire rope C and a steel wire rope D. The two supporting plates and the two baffles are symmetrically arranged on the left side and the right side of the cross beam, and steel wire rope installation positions are formed between the baffles and the supporting plates. One end of the steel wire rope A is connected with one end of the steel wire rope B, the other end of the steel wire rope A is connected with the steel wire rope mounting position on the left side, and the other end of the steel wire rope B is connected with one end of the steel wire rope C through the chain block; the upper ends of the two steel wire ropes D are detachably arranged at the steel wire rope installation positions between the baffles on the two sides and the supporting plate. The novel steam turbine rotor hoisting tool is attractive in appearance, firm in structure, low in manufacturing cost, convenient to use, high in operation efficiency, safe, reliable and capable of better meeting the hoisting operation requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of steam turbine lifting tools, and in particular, it is a new type of steam turbine rotor lifting tool. Background Technology

[0002] With societal development, the refinement and intelligentization of product design are becoming increasingly apparent. Coupled with intensifying domestic and international competition, cost reduction and efficiency improvement can significantly enhance product competitiveness and market share. The refined design of hoisting rotor tools is increasingly aligned with the company's development needs. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of turbine rotor hoisting tool, which reduces the manufacturing cost of the rotor hoisting tool and improves its performance through refined design.

[0004] The technical solution of this utility model is as follows:

[0005] A novel turbine rotor hoisting tool includes a crossbeam, support plates, baffles, wire ropes A and B, a hand-operated hoist, wire ropes C and D. Two support plates are symmetrically arranged on the left and right sides of the crossbeam, and two baffles are symmetrically arranged at the outermost ends of both sides of the crossbeam. The baffles are located outside the support plates, and a wire rope mounting position is formed between the baffles and the support plates. One end of wire rope A is connected to one end of wire rope B, and the other end of wire rope A is connected to the wire rope mounting position on the left. The other end of wire rope B is connected to one end of wire rope C via the hand-operated hoist, and the other end of wire rope C is connected to the wire rope mounting position on the right. Two wire ropes D are provided, and the upper end of wire rope D is detachably mounted in the wire rope mounting position between the baffles and support plates on both sides.

[0006] Preferably, the crossbeam is made of a seamless steel pipe formed in one piece, which has high structural strength and good durability.

[0007] Preferably, the support plate and baffle are both made of carbon steel, and are welded and fixed to the crossbeam, which makes them easy to manufacture and has a sturdy structure.

[0008] Preferably, the connection between wire rope A and wire rope B is made by hooking or wrapping with a crane hook, which is easy to disassemble and use.

[0009] Preferably, the lower end of the wire rope D is connected to the lifting positions on both sides of the turbine rotor by means of hooking or wrapping.

[0010] Preferably, the seamless steel pipe and the upper wire rope A, wire rope B, hand chain hoist, and wire rope C form a symmetrical structure in the shape of an isosceles right triangle, which ensures a firm and reliable installation.

[0011] Preferably, the distance between the baffle and support plate on the left side is equal to the distance between the baffle and support plate on the right side, which is aesthetically pleasing and easy to use.

[0012] Preferably, the upper part of the support plate is semi-circular, the lower part of the support plate is rectangular, and the baffle is circular. The upper semi-circular part of the support plate and the upper semi-circular part of the baffle are the same, which makes the appearance beautiful and the plate sturdy and durable.

[0013] The present invention has the following advantages: the new turbine rotor hoisting tool has an attractive appearance, a robust structure, low manufacturing cost, is easy to use, has high operating efficiency, is safe and reliable, and better meets the needs of hoisting operations. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a novel turbine rotor hoisting tool according to this utility model;

[0015] Figure 2 yes Figure 1 Structural schematic diagram of seamless steel pipe and support plate in the center A direction;

[0016] In the diagram, 1-Wire rope A, 2-Wire rope B, 3-Hand chain hoist, 4-Wire rope C, 5-Seamless steel pipe, 6-Wire rope D, 7-Steam turbine rotor, 8-Support plate, 9-Baffle. Detailed Implementation

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0018] like Figure 1 and Figure 2 As shown, this utility model provides a novel turbine rotor lifting tool for lifting turbine rotor 7. The tool includes a seamless steel pipe 5, support plates 8, baffles 9, wire ropes A1 and B2, a hand-operated hoist 3, wire ropes C4 and D6. Two support plates 8 are symmetrically arranged on the left and right sides of the seamless steel pipe 5, and two baffles 9 are symmetrically arranged at the outermost ends of both sides of the seamless steel pipe 5. The baffles 9 are located outside the support plates 8, and a wire rope mounting position is formed between the baffles 9 and the support plates 8. One end of the wire rope A1 is connected to one end of the wire rope B2, and the other end of the wire rope A1 is connected to the wire rope mounting position on the left side by means of hooking or winding. The other end of the wire rope B2 is connected to one end of the wire rope C4 by means of hand-operated hoist 3, and the other end of the wire rope C4 is connected to the wire rope mounting position on the right side by means of hooking or winding. There are two wire ropes D6, and the upper end of the wire rope D6 is detachably set in the wire rope mounting position between the two side baffles 9 and the support plate 8 by means of hooking or winding.

[0019] In this embodiment, both the support plate 8 and the baffle 9 are made of carbon steel. The opening of the support plate is larger than the outer diameter of the seamless steel pipe. Both the support plate 8 and the baffle 9 are fixedly connected to the seamless steel pipe 5 by welding.

[0020] In this embodiment, the connection point between the steel wire rope A1 and the steel wire rope B2 is connected to the crane hook by means of hooking or winding.

[0021] In this embodiment, the lower end of the wire rope D6 is connected to the lifting positions on both sides of the turbine rotor 7 by means of hooking or wrapping.

[0022] In this embodiment, the seamless steel pipe 5, together with the steel wire rope A1, steel wire rope B2, hand chain hoist 3, and steel wire rope C4 above, form a symmetrical structure in the shape of an isosceles right triangle.

[0023] In this embodiment, the distance between the baffle 9 and the support plate 8 on the left side is equal to the distance between the baffle 9 and the support plate 8 on the right side.

[0024] In this embodiment, the upper part of the support plate 8 is semi-circular, the lower part of the support plate 8 is a rectangular structure with a height of H, the baffle 9 is circular, and the upper half of the support plate 8 and the upper half of the baffle 9 are the same.

[0025] Furthermore, in this new type of turbine rotor hoisting tool, the diameter and thickness of the seamless steel pipe 5 are determined based on the mass and span of the turbine rotor 7, the thickness of the wire rope is determined based on the mass of the turbine rotor 7, the length of the wire rope is determined based on the length and angle of the crossbeam or based on the height of the rotor's last blade, the baffle 9 is determined based on the outer diameter of the seamless steel pipe 5 and the diameter of the wire rope, the support plate 8 is determined based on the outer diameter of the seamless steel pipe 5 and the diameter of the baffle 9, the installation distance of the wire rope on the crossbeam is determined by the diameter of the wire rope, and the hand-operated hoist is used to adjust the horizontality of the crossbeam.

[0026] During the design process, firstly, based on the rotor weight and span, select the appropriate outer diameter and wall thickness of the seamless steel pipe 5. Then, based on the rotor weight and the length of the seamless steel pipe 5, select the diameter and length of wire ropes A1, B2, and C4. Next, based on the rotor weight and the diameter of the rotor's last blade, select the diameter and length of wire rope D6. Then, determine the wire rope installation distance based on the wire rope diameter. Next, install the support plate 8 into the seamless steel pipe 5 and weld it in place according to the wire rope distance. Finally, weld baffles 9 to both ends of the seamless steel pipe 5. The crossbeam consists of the seamless steel pipe 5, the support plate 8, and the baffles 9. The outer diameter of the baffles 9 is determined based on the outer diameter of the seamless steel pipe 5 and the diameter of the wire ropes. The upper half of the support plate 8 is the same as the upper half of the baffle 9, and the lower half height is determined according to the radius of the baffle 9 and the diameter of the wire ropes.

[0027] During installation, first place the crossbeam next to the turbine rotor 7. Then, select a suitable lifting position on the turbine rotor 7, pass the wire rope D6 through the turbine rotor 7, and then loop the wire rope D6 onto the crossbeam. Next, insert one end of the wire rope A1 into the crossbeam and hang the other end on the hook of the crane. Install the wire rope B2, the hand chain hoist 3, and the wire rope C4 in the same way. Then, slowly raise the crossbeam and adjust its levelness using the hand chain hoist 3. When the turbine rotor 7 and the crossbeam are on the same vertical plane, the turbine rotor 7 can be lifted.

[0028] This utility model may have other various embodiments. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A novel steam turbine hanger rotor tool characterized by: Including crossbeam, support plate, baffle, steel wire rope A, steel wire rope B, hand-operated hoist, steel wire rope C and steel wire rope D, the crossbeam is symmetrically provided with two support plates on the left and right sides, and two baffles are symmetrically arranged at the outermost ends of the crossbeam, the baffles are located outside the support plates, and the baffles and the support plates form a steel wire rope mounting position, one end of the steel wire rope A is connected with one end of the steel wire rope B, the other end of the steel wire rope A is connected with the steel wire rope mounting position on the left side, the other end of the steel wire rope B is connected with one end of the steel wire rope C through the hand-operated hoist, the other end of the steel wire rope C is connected with the steel wire rope mounting position on the right side, the steel wire rope D has two, and the upper end of the steel wire rope D is detachably arranged in the steel wire rope mounting position between the baffles and the support plates on the two sides.

2. A novel turbine hanger rotor tool according to claim 1 characterized by: The crossbeam is a seamless steel pipe formed integrally.

3. A novel rotor hoisting tool for steam turbines as claimed in claim 2, characterized in that: The support plate and the baffle are both made of carbon steel, and the support plate and the baffle are both welded and fixed with the crossbeam.

4. A novel turbine hanger rotor tool as claimed in claim 1, wherein: The position where the steel wire rope A is connected with the steel wire rope B is connected with the crane hook in the form of hook or winding.

5. A novel turbine hanger rotor tool as claimed in claim 1, wherein: The lower end of the steel wire rope D is connected with the lifting position on the two sides of the steam turbine rotor in the form of hook or winding.

6. A novel turbine hanger rotor tool according to claim 2, characterized in that: The seamless steel pipe and the steel wire rope A, the steel wire rope B, the hand-operated hoist and the steel wire rope C above form a symmetrical structure in the shape of an isosceles right triangle.

7. A novel turbine hanger rotor tool as claimed in claim 1, wherein: The distance between the baffle and the support plate on the left side is equal to the distance between the baffle and the support plate on the right side.

8. A novel tool for lifting and rotating a rotor of a steam turbine according to any one of claims 1-7, characterized in that: The upper part of the support plate is semicircular, the lower part of the support plate is rectangular, the baffle is circular, and the upper half of the semicircle of the support plate is the same as the upper half of the semicircle of the baffle.

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