CN220467333U - Hoisting device for steam turbine rotor - Google Patents

Abstract

The utility model discloses a lifting device for a steam turbine rotor, which relates to the technical field of steam turbines and comprises a door-shaped frame; the utility model discloses a lifting device for a crane, including door type frame, cylinder telescopic end, mounting bracket, a pair of guide bar slidable mounting in on the door type frame, a pair of hoist and mount piece is installed to the mounting bracket bottom, a pair of the axle groove has all been seted up in the hoist and mount piece, a pair of all connect the threaded rod soon on the both sides wall of hoist and mount piece, be located in the axle groove threaded rod one end all fixed mounting has splint, threaded rod's the equal fixed mounting of the other end has the bull stick, has effectively solved the fixed subassembly that lacks the rotor in the rope sling of current lifting device, in the hoist and mount process, the rotor easily takes place situations such as skew, slope in the rope sling, has the potential safety hazard, causes the technical problem of incident easily.

Description

Hoisting device for steam turbine rotor

Technical Field

The utility model relates to the technical field of steam turbines, in particular to a lifting device for a steam turbine rotor.

Background

When the disassembly inspection overhaul is performed on the high-middle-low pressure cylinder of the turbine body part, the turbine rotor needs to be subjected to routine overhaul and cleaning. Generally, a lifting device is adopted to lift the rotor, then overhaul and clean the rotor, and then the rotor is put down after overhaul and cleaning are finished, so that safe and stable operation of equipment is ensured.

However, most of the existing rotor lifting devices directly lift the lifting rope on the rotor, the fixing components for the rotor are absent in the rope sleeve, and in the lifting process, the rotor is easy to deviate and incline in the rope sleeve, so that potential safety hazards exist and safety accidents are easy to cause.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a lifting device for a steam turbine rotor, which solves the technical problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a lifting device for a steam turbine rotor comprises a door-shaped frame; the utility model discloses a door type frame, including door type frame, cylinder telescopic end, mounting bracket, a pair of guide bar slidable mounting in on the door type frame, a pair of hoist and mount piece is installed to the mounting bracket bottom, a pair of the axle groove has all been seted up in the hoist and mount piece, a pair of all connect the threaded rod soon on the both sides wall of hoist and mount piece, be located in the axle groove threaded rod one end all fixed mounting has splint, the equal fixed mounting of the other end of threaded rod has the bull stick.

Preferably, the wire drawing rod is rotatably arranged in the mounting frame, a pair of sliding blocks are rotatably connected to the wire drawing rod, lifting ropes are fixedly connected to the bottoms of the sliding blocks, sliding ports for sliding the lifting ropes are formed in the bottoms of the mounting frame, and the lifting blocks are fixedly arranged at the bottoms of the lifting ropes.

Preferably, the mounting frame is fixedly provided with a motor for driving the pair of wire drawing rods to rotate.

Preferably, anti-slip pads are fixedly arranged on the opposite sides of the clamping plates and the bottoms of the shaft grooves.

Advantageous effects

The utility model provides a lifting device for a steam turbine rotor, which has the following beneficial effects:

1. the hoisting blocks are arranged on the two sides of the rotor, so that the rotor can be hoisted conveniently, the rotating rod is arranged, the threaded rod and the clamping plates can be driven to rotate by rotating the rotating rod, and therefore the distance between the pair of clamping plates can be adjusted, the rotors with different diameters can be fixed conveniently, and further safety accidents caused by the situations of deviation, inclination and the like of the rotors in the rope sleeve in the hoisting process can be effectively avoided;

2. the air cylinder is arranged, the telescopic end of the air cylinder is contracted to drive the mounting frame to lift, and the guide rod is arranged to guide the mounting frame, so that the mounting frame is more stable in the lifting process;

3. through installing to the wire drawing pole, can drive the slider through rotating to the wire drawing pole and remove to distance between a pair of slider, and then distance between a pair of hoist and mount piece can be adjusted, the rotor of different sizes can then hoist and mount.

Drawings

FIG. 1 is a schematic diagram of the front internal structure of the present utility model;

fig. 2 is an enlarged schematic side view of the lifting block of the present utility model.

In the figure: 1. a door-shaped frame; 2. a cylinder; 3. a mounting frame; 4. a hanging rope; 5. hoisting the block; 6. a shaft groove; 7. a clamping plate; 8. a threaded rod; 9. a rotating rod; 10. a wire drawing rod is paired; 11. a slide block; 12. a motor; 13. a guide rod; 14. a sliding port; 15. an anti-slip mat.

Detailed Description

Technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, where "upper", "lower" and other terms refer to the orientation of fig. 1.

Referring to fig. 1-2, the present utility model provides a technical solution: a lifting device for a steam turbine rotor comprises a door-shaped frame 1; the cylinder 2 is fixedly mounted on the door-type frame 1, the mounting frame 3 is fixedly mounted at the telescopic end of the cylinder 2, the pair of guide rods 13 is fixedly mounted at the top of the mounting frame 3, the pair of guide rods 13 are slidably mounted on the door-type frame 1, the pair of hoisting blocks 5 are mounted at the bottom of the mounting frame 3, the shaft grooves 6 are formed in the pair of hoisting blocks 5, the threaded rods 8 are screwed on the two side walls of the pair of hoisting blocks 5, the clamping plates 7 are fixedly mounted at one ends of the threaded rods 8 positioned in the shaft grooves 6, and the rotating rods 9 are fixedly mounted at the other ends of the threaded rods 8.

In this embodiment, through installing cylinder 2, the flexible end shrink of cylinder 2 can drive mounting bracket 3 and go up and down, through installing guide bar 13, can play the guide effect to mounting bracket 3, make mounting bracket 3 more steady at the lift in-process, through installing hoist block 5, can overlap hoist block 5 on the rotor, so that hoist the rotor, through installing bull stick 9, rotate bull stick 9 and can drive threaded rod 8 and splint 7 rotation, thereby can change the distance between a pair of splint 7, so that fix the rotor of different diameters, and then can effectively avoid the rotor to take place the incident because of the situation such as skew, slope take place in the noose at the in-process of lifting by crane.

As one embodiment of the utility model, a pair of wire drawing rods 10 are rotatably arranged on the mounting frame 3, a pair of sliding blocks 11 are rotatably connected to the pair of wire drawing rods 10, the bottoms of the sliding blocks 11 are fixedly connected with a lifting rope 4, a sliding opening 14 for sliding the lifting rope 4 is formed in the bottom of the mounting frame 3, and the lifting block 5 is fixedly arranged at the bottom of the lifting rope 4.

In this embodiment, by installing the pair of wire drawing rods 10, the pair of wire drawing rods 10 rotate to drive the sliding blocks 11 to move, so that the distance between the pair of sliding blocks 11 can be adjusted, the distance between the pair of hoisting blocks 5 can be adjusted, and then rotors with different sizes can be hoisted.

As an embodiment of the present utility model, a motor 12 for driving the wire drawing rod 10 to rotate is fixedly installed on the mounting frame 3.

As an embodiment of the present utility model, anti-slip pads 15 are fixedly installed on opposite sides of the pair of clamping plates 7 and the bottom of the shaft groove 6, so as to increase friction between the rotor and the clamping plates 7 and the shaft groove 6, and further prevent the rotor from sliding in the shaft groove 6.

All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the following working principles in the working sequence among the electric components, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted from the description of electric control.

The working principle and the using flow of the utility model are as follows: when the rotor is used, the rotor is placed at the bottom of the door-shaped frame 1, the motor 12 is turned on, the wire drawing rod 10 is driven to rotate, the distance between the pair of sliding blocks 11 is adjusted according to the size of the rotor, the sliding blocks 11 are adjusted to a proper position, the lifting blocks 5 are sleeved on two sides of the rotor, the rotating rod 9 is rotated to drive the threaded rod 8 to rotate, the distance between the pair of clamping plates 7 is adjusted to fix the rotor, after the rotor is fixed, the air cylinder 2 is started, the mounting frame 3 and the lifting blocks 5 are driven to ascend through the shrinkage of the telescopic ends of the air cylinder 2, and therefore the rotor can be lifted.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A lifting device for a steam turbine rotor, which is characterized by comprising a door-shaped frame (1); the novel lifting device is characterized in that an air cylinder (2) is fixedly mounted on the door-shaped frame (1), an installation frame (3) is fixedly mounted at the telescopic end of the air cylinder (2), a pair of guide rods (13) are fixedly mounted at the top of the installation frame (3), the guide rods (13) are slidably mounted on the door-shaped frame (1), a pair of lifting blocks (5) are mounted at the bottom of the installation frame (3), shaft grooves (6) are formed in the lifting blocks (5), threaded rods (8) are rotatably connected to the two side walls of the lifting blocks (5), clamping plates (7) are fixedly mounted at one ends of the threaded rods (8) in the shaft grooves (6), and rotating rods (9) are fixedly mounted at the other ends of the threaded rods (8).

2. The lifting device for the steam turbine rotor according to claim 1, wherein the mounting frame (3) is rotatably provided with a pair of pull screw rods (10), a pair of sliding blocks (11) are rotatably connected to the pull screw rods (10), lifting ropes (4) are fixedly connected to the bottoms of the sliding blocks (11), sliding ports (14) for sliding the lifting ropes (4) are formed in the bottoms of the mounting frame (3), and the lifting blocks (5) are fixedly arranged at the bottoms of the lifting ropes (4).

3. A lifting device for a steam turbine rotor according to claim 2, characterized in that the mounting frame (3) is fixedly provided with a motor (12) for driving the split screw (10) to rotate.

4. The lifting device for a steam turbine rotor according to claim 1, wherein anti-slip pads (15) are fixedly mounted on opposite sides of the pair of clamping plates (7) and on the bottom of the shaft groove (6).