Multifunctional power plant steam turbine maintenance platform

Abstract

The utility model discloses a multifunctional power plant steam turbine maintenance platform which comprises a plurality of clamping rings, the clamping rings are sleeved with extrusion rings, the opposite ends of the clamping rings are provided with fixing rings, each clamping ring is composed of an upper clamping base and a lower clamping base, the outer ring face of each upper clamping base and the outer ring face of each lower clamping base are provided with a plurality of positioning openings, and the outer ring faces of the upper clamping bases and the outer ring faces of the lower clamping bases are provided with clamping grooves. Positioning columns are arranged in the positioning openings, one end of each positioning column extends into the clamping ring and is provided with a clamping block, the other end of each positioning column extends to the outside and is obliquely provided with a first flow guide part, and the end, away from the fixing ring, of the extrusion ring surrounds the extrusion ring by a circle to form an oblique second flow guide part; the second flow guide part is in contact with the first flow guide part. The steam turbine clamping device is simple in structure, the upper clamping base and the lower clamping base can be rapidly connected through the limiting block, and after the extrusion ring gets close inwards, the positioning columns can be synchronously pushed to get close inwards, so that 360-degree clamping and fixing of a steam turbine are completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of overhaul platform, concretely relates to a multifunctional power plant steam turbine overhaul platform. BACKGROUND

[0002] Steam turbine is also called steam turbine engine, and it is a kind of rotary steam power device, high-temperature and high-pressure steam is injected to blade after becoming accelerated airflow through fixed nozzle, and steam turbine rotates, at the same time, it does work to outside, steam turbine is the main equipment of modern thermal power plant, and it is also used in metallurgical industry, chemical industry and ship power device, steam turbine will inevitably appear fault and need overhaul in long-term operation process, and it needs to be disassembled and overhauled on overhaul platform.

[0003] The existing steam turbine overhaul platform is generally clamped and fixed to steam turbine through clamping blocks, but each clamping block is independently arranged, so that each clamping block does not need to be independently operated in the operation process, and the clamping efficiency is seriously affected, and the upper half of the steam turbine lacks clamping positioning effect in the clamping process, thereby affecting the stability of clamping. SUMMARY

[0004] The utility model wants to solve the technical problem to provide a kind of multifunctional power plant steam turbine overhaul platform, through the clamping ring can 360 ° clamping steam turbine, and clamping block can be synchronously clamped and fixed inward, to solve the problem raised in the above background technology.

[0005] The utility model is realized through the following technical schemes: a kind of multifunctional power plant steam turbine overhaul platform, including multiple clamping rings, the clamping ring is laterally oppositely arranged, the outside of clamping ring is all sheathed with extrusion ring, the opposite end of clamping ring is all equipped with fixed ring, clamping ring is all composed of upper clamping seat and lower clamping seat, the outer circle surface of upper clamping seat and lower clamping seat is all equipped with multiple positioning ports, positioning port is all equipped with positioning column, one end of positioning column is all extended to the inside of clamping ring, and clamping block is all installed, the other end of positioning column is all extended to outside, and first flow guide part is all inclinedly arranged, extrusion ring is all formed inclined second flow guide part around extrusion ring one end away from fixed ring, and second flow guide part is in contact with first flow guide part.

[0006] As preferred technical scheme, one end of upper clamping seat and lower clamping seat is fixedly connected by hinging piece, the other end of upper clamping seat and lower clamping seat is equipped with connecting slot, connecting slot is all combined to form funnel-shaped structure's limit port, limit block matched with limit port is all arranged in limit port, the outside of fixed ring is all installed first cylinder opposite limit port, and the piston rod of first cylinder is all fixedly connected with limit block by passing through fixed ring and limit port.

[0007] As a preferred technical solution, a connecting seat is installed between the lower clamping seat and the fixed ring, and a clearance space is provided between the clamping ring and the fixed ring for the compression ring to retract.

[0008] As a preferred technical solution, multiple second cylinders are installed on the outer surface of the fixed ring, and the piston rods of the second cylinders are all installed on the compression ring through the fixed ring.

[0009] As a preferred technical solution, a fixing seat is installed on the outer ring surface of the fixing ring, and a base plate is installed on multiple fixing seats.

[0010] As a preferred technical solution, both the positioning post and the positioning port have rectangular cross-sections. A compression spring is fitted around the outside of each positioning post. One end of each compression spring is mounted on the clamping block, and the other end is mounted on the inner ring surface of the clamping ring.

[0011] As a preferred technical solution, rubber pads are installed on the inner side of the clamping blocks.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure. After the extrusion ring retracts, the upper clamping seat can be opened, allowing the steam turbine to be hoisted and lowered into the lower clamping seat. After the upper clamping seat is closed, the upper clamping seat and the lower clamping seat can be quickly connected by the limiting block. After the extrusion ring moves inward, the positioning column can be pushed inward simultaneously to complete the 360° clamping and fixing of the steam turbine. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model after disassembling any extrusion ring.

[0017] Among them, 1. clamping ring; 2. squeezing ring; 3. fixing ring; 4. second cylinder; 5. first cylinder; 6. limiting block; 7. positioning post; 8. clamping block; 9. compression spring; 10. rubber pad; 11. base plate; 12. connecting seat; 13. first guide section. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a multifunctional power plant turbine maintenance platform, comprising multiple clamping rings 1 arranged laterally opposite each other. Each clamping ring 1 is fitted with a compression ring 2, and each clamping ring 1 has a fixing ring 3 on its opposite end. Each clamping ring 1 is composed of an upper clamping seat and a lower clamping seat. Each upper clamping seat and lower clamping seat has multiple positioning holes on its outer ring surface. Each positioning hole has a positioning post 7. One end of each positioning post 7 extends into the interior of the clamping ring 1 and is fitted with a clamping block 8. The other end of each positioning post 7 extends to the outside and is inclinedly provided with a first guide portion 13. The end of the compression ring 2 away from the fixing ring 3 is arranged around the compression ring 2 to form an inclined second guide portion. The second guide portion is in contact with the first guide portion 13.

[0022] In this embodiment, one end of the upper clamping seat and the lower clamping seat are fixedly connected by a hinge. The other end of the upper clamping seat and the lower clamping seat are provided with a connecting groove. The connecting grooves are combined to form a funnel-shaped limiting port. A limiting block 6 is provided in the limiting port. A first cylinder 5 is installed on the outer side of the fixing ring 3 opposite to the limiting port. The piston rod of the first cylinder 5 passes through the fixing ring 3 and the limiting port and is fixedly connected to the limiting block 6.

[0023] In this embodiment, a connecting seat 12 is installed between the lower clamping seat and the fixed ring 3, and a clearance space is provided between the clamping ring 1 and the fixed ring 3 for the compression ring 2 to retract.

[0024] In this embodiment, multiple second cylinders 4 are installed on the outer surface of the fixing ring 3, and the piston rods of the second cylinders 4 are all installed on the compression ring 2 through the fixing ring 3.

[0025] In this embodiment, a fixing seat is installed on the outer ring surface of the fixing ring 3, and a base plate 11 is installed on multiple fixing seats.

[0026] In this embodiment, both the positioning post 7 and the positioning port have rectangular cross-sections. A compression spring 9 is sleeved on the outside of the positioning post 7. One end of the compression spring 9 is installed on the clamping block 8, and the other end is installed on the inner ring surface of the clamping ring 1, so that the positioning post can only move along the axial direction of the positioning port to ensure stability during clamping.

[0027] In this embodiment, rubber pads 10 are installed on the inner side of the clamping block 8, which increases the flexibility during clamping and avoids damage to the steam turbine caused by rigid contact.

[0028] In use, first start the second cylinder to retract the piston rod of the second cylinder. The movement of the piston rod drives the extrusion ring to move toward the fixed ring and move away from the outside of the clamping ring. At this time, the first cylinder can be started to extend the piston rod of the first cylinder. The movement of the piston rod pushes the limiting block. After the limiting block moves out of the limiting port, the upper clamping seat can open outward with the hinge as the center.

[0029] After the above is completed, the steam turbine is hoisted and lowered into the lower clamping seat and contacts the rubber pad below. After placement, the upper clamping seat needs to be closed again. After the piston rod of the first cylinder retracts, the limit block can be inserted into the limit port again, thereby connecting the closed upper and lower clamping seats together and preventing them from being opened again.

[0030] After the second cylinder is activated, it can push the extrusion ring inward. As the extrusion ring moves, it can squeeze the first extrusion part through the second guide part, so that the positioning pin can move inward synchronously along the positioning port until multiple clamping blocks are clamped 360° on the outer ring surface of the steam turbine. The movement of the extrusion ring can complete the movement of multiple clamping blocks at one time, which increases the convenience of operation.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A multi-functional power plant turbine maintenance platform, characterized in that: It includes multiple clamping rings (1), which are arranged laterally opposite each other. Each clamping ring (1) is fitted with a compression ring (2), and each clamping ring (1) is provided with a fixing ring (3) on the opposite end. Each clamping ring (1) is composed of an upper clamping seat and a lower clamping seat. Each upper clamping seat and the lower clamping seat are provided with multiple positioning holes on their outer ring surfaces. Each positioning hole is provided with a positioning post (7). One end of each positioning post (7) extends into the interior of the clamping ring (1) and is equipped with a clamping block (8). The other end of each positioning post (7) extends to the outside and is provided with a first guide part (13) at an inclination. The end of the compression ring (2) away from the fixing ring (3) is arranged around the compression ring (2) to form an inclination second guide part. The second guide part is in contact with the first guide part (13).

2. The multi-functional power plant turbine maintenance platform according to claim 1, characterized in that: One end of the upper clamping seat and the lower clamping seat are fixedly connected by a hinge. The other end of the upper clamping seat and the lower clamping seat are provided with a connecting groove. The connecting grooves are combined to form a funnel-shaped limiting port. The limiting port is provided with a matching limiting block (6). The outer side of the fixing ring (3) is directly opposite the limiting port and a first cylinder (5) is installed. The piston rod of the first cylinder (5) passes through the fixing ring (3) and the limiting port and is fixedly connected to the limiting block (6).

3. The multifunctional power plant turbine maintenance platform according to claim 1, characterized in that: A connecting seat (12) is installed between the lower clamping seat and the fixed ring (3), and a clearance space is provided between the clamping ring (1) and the fixed ring (3) for the compression ring (2) to retract.

4. The multi-functional power plant turbine maintenance platform according to claim 1, characterized in that: Multiple second cylinders (4) are installed on the outer side of the fixed ring (3), and the piston rods of the second cylinders (4) pass through the fixed ring (3) and are installed on the compression ring (2).

5. The multi-functional power plant turbine maintenance platform according to claim 1, characterized in that: A fixing seat is installed on the outer ring surface of the fixing ring (3), and a base plate (11) is installed on multiple fixing seats.

6. The multi-functional power plant turbine maintenance platform according to claim 1, characterized in that: The positioning post (7) and the positioning port are both rectangular in cross-section. The positioning post (7) is fitted with a compression spring (9) on the outside. One end of the compression spring (9) is installed on the clamping block (8), and the other end is installed on the inner ring surface of the clamping ring (1).

7. The multi-functional power plant turbine maintenance platform according to claim 1, characterized in that: Rubber pads (10) are installed on the inner side of the clamping block (8).

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