Device for taking out guide sleeve assembly of high-pressure combined valve hydraulic servo-motor of steam turbine

Abstract

The utility model discloses a device for taking out a guide sleeve assembly of a steam turbine high-pressure combined valve hydraulic servo-motor, which relates to the technical field of tools for taking out guide sleeve assemblies of hydraulic servo-motors and comprises an outer ring, a plurality of tin bronze lining tiles used for taking out copper sleeves are arranged on the circumferential side of the inner ring of the outer ring, and threaded holes are formed in the periphery of the outer ring. A lead screw is connected into each threaded hole in a screwed mode, and a connecting assembly matched with the lead screws is arranged in the middle of the outer side face of the tin bronze lining tile. According to the taking-out device, the outer ring is matched with the lining tile and the lead screw, the aim of rapidly taking down the guide sleeve assembly of the valve hydraulic servo-motor is conveniently achieved, the lining tile is matched with the connecting assembly and the lead screw, the guide sleeve assemblies with different diameters can be rapidly taken down, and the taking-out device is simple in structure, convenient to operate and high in practicability. The guide sleeve assembly can be safely and rapidly disassembled, the labor intensity of workers is greatly relieved, and the working efficiency of disassembling operation is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tools for removing guide sleeve assemblies of hydraulic actuators, and in particular to a device for removing guide sleeve assemblies of hydraulic actuators for high-pressure combined steam valves of steam turbines. Background Technology

[0002] Leakage can occur when the seal of the "guide sleeve assembly" of the high-pressure regulating valve hydraulic actuator of the steam turbine main unit wears out. During maintenance and replacement of the "guide sleeve assembly," the high friction of the sealing ring within the assembly can damage the copper component using conventional removal methods. Traditional methods typically rely on manual operation or simple tools (such as flat screwdrivers and hammers) for disassembly, which is time-consuming and requires repeated attempts, making it difficult to complete the disassembly quickly. This is especially true when the guide sleeve assembly and the copper sleeve are tightly fitted, further slowing down the disassembly process and severely impacting work efficiency. Therefore, solutions to these problems are necessary. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a device for removing the guide sleeve assembly of the high-pressure combined steam valve hydrant motor of a steam turbine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a steam turbine high-pressure combined steam valve oil motor guide sleeve assembly removal device, including an outer ring, with multiple liner plates for removing the guide sleeve assembly provided on the inner circumference of the outer ring, threaded holes being opened on all four sides of the outer ring, and a screw threaded into each threaded hole, with a connecting component provided in the middle of the outer side of the liner plate in conjunction with the screw thread.

[0005] Preferably, the connecting assembly includes a threaded groove formed in the middle of the outer side of the liner, an external threaded tube screwed into the threaded groove, a bearing ring fixedly installed in the inner ring of the external threaded tube, a connecting shaft fixedly connected in the inner ring of the bearing ring, and an external threaded post fixedly connected to the outer end of the connecting shaft. A threaded connection hole is formed on the inner end face of the lead screw to match the external threaded post, and the external threaded post is screwed into the threaded connection hole at the inner end of the lead screw.

[0006] Preferably, the outer end of the connecting shaft is a hexagonal prism-shaped shaft structure.

[0007] Preferably, a hexagonal ring block for screwing the externally threaded pipe is fixed to the outer end face of the externally threaded pipe.

[0008] Preferably, a knob block is fixed to the outer end of the lead screw, and the knob block is hexagonal prism shaped.

[0009] Preferably, the lining tile is an arc-shaped block, and multiple horizontally arranged anti-slip grooves are equidistantly provided on the inner arc surface of the lining tile.

[0010] Preferably, each anti-slip groove is fixedly fitted with an anti-slip strip, which is in the shape of a rubber strip.

[0011] Preferably, the abutting end of the anti-slip strip extends outside the anti-slip groove.

[0012] Preferably, the edges on both sides of the inner arc surface of the lining tile are arc-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the outer ring, the liner, and the lead screw, facilitates the rapid removal of the valve throttle motor guide sleeve assembly. Furthermore, the cooperation of the liner, the connecting component, and the lead screw allows for the rapid removal of guide sleeve assemblies of different diameters, further expanding the applicability of this device. The cooperation of the liner and the anti-slip strip prevents the liner from slipping and loosening when clamping and pulling out the guide sleeve assembly, improving stability during removal. This removal device has a simple structure, is easy to operate, and can safely and quickly remove the guide sleeve assembly, significantly reducing the labor intensity of workers and effectively improving the efficiency of disassembly operations. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;

[0016] Figure 2 This is a second-view schematic diagram of the overall structure proposed in this utility model;

[0017] Figure 3 This is a top view of the overall structure proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the outer ring, lead screw, and liner structure proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the liner and screw structure proposed in this utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure between the connecting component and the liner tile proposed in this utility model.

[0021] Figure 7 This is a top view of the connecting component and the lining tile proposed in this utility model;

[0022] Figure 8 This is a three-dimensional structural diagram of the connecting component proposed in this utility model.

[0023] The numbers in the diagram are: 1. Outer ring; 2. Liner; 3. Threaded hole; 4. Lead screw; 5. Knob block; 7. Anti-slip strip; 8. External threaded pipe; 9. Hexagonal ring block; 10. Bearing ring; 11. Connecting shaft; 12. External threaded column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example: See Figure 1-8 The present invention relates to a device for removing a guide sleeve assembly of a high-pressure combined steam valve hydrant motor in a steam turbine. The device includes an outer ring 1. Multiple lining plates 2, made of tin bronze, are provided around the inner circumference of the outer ring 1 for removing the guide sleeve assembly. Threaded holes 3 are provided around the outer ring 1, and a lead screw 4 is screwed into each threaded hole 3. A knob block 5, which is hexagonal prism-shaped, is fixed to the outer end of the lead screw 4. A connecting assembly is provided in the middle of the outer surface of the lining plate 2 in conjunction with the lead screw 4. The cooperation between the outer ring 1, the lining plate 2, and the lead screw 4 facilitates the rapid removal of the steam valve hydrant motor guide sleeve assembly. Furthermore, the cooperation between the lining plate 2, the connecting assembly, and the lead screw 4 allows for the rapid removal of guide sleeve assemblies of different diameters, further improving the applicability of the device. The connecting assembly includes a threaded groove in the middle of the outer surface of the lining plate 2, an external threaded tube 8 screwed into the threaded groove, a bearing ring 10 fixedly installed in the inner ring of the external threaded tube 8, and a fixed... The connecting shaft 11 is connected to the inner ring of the bearing ring 10, and the external threaded post 12 is fixed to the outer end of the connecting shaft 11. The outer end of the connecting shaft 11 is a hexagonal prism-shaped shaft structure, which facilitates the connection and fixation of the external threaded post 12 to the lead screw 4. The inner end face of the lead screw 4 is provided with a threaded connection hole to accommodate the external threaded post 12. The external threaded post 12 is screwed into the threaded connection hole at the inner end of the lead screw 4. The connection assembly facilitates the disassembly and replacement of the lead screw 4 and the bushing 2. It also facilitates the removal of guide sleeve assemblies of different diameters by installing bushings 2 of different sizes at the inner end of the lead screw 4 through the connection assembly. This not only improves the stability of the device during the removal process but also enhances the convenience of replacing parts during use. This removal device has a simple structure, is easy to operate, and can safely and quickly remove the "guide sleeve assembly", greatly reducing the labor intensity of the workers and effectively improving the efficiency of the disassembly operation.

[0026] In this invention, a hexagonal ring block 9 for screwing the externally threaded pipe 8 is fixedly connected to the outer end face of the externally threaded pipe 8. By using a wrench to hold the hexagonal ring block 9, it is easy to install the externally threaded pipe 8 on the liner 2. Multiple horizontally arranged anti-slip grooves are equidistantly opened on the inner arc surface of the liner 2. An anti-slip strip 7 is fixedly engaged inside each anti-slip groove. The anti-slip strip 7 is rubber strip-shaped. The abutting end of the anti-slip strip 7 extends out of the anti-slip groove. The anti-slip strip 7 extending out of the anti-slip groove can improve the clamping stability of the liner 2 when clamping and removing the guide sleeve assembly, avoid the loosening of the guide sleeve assembly during the removal process, and improve the stability when removing the guide sleeve assembly. The liner 2 is arc-shaped, and the edges on both sides of the inner arc surface of the liner 2 are arc-shaped. The arc-shaped edges of the inner arc surface of the liner 2 can help avoid scratching the outer wall of the guide sleeve assembly when placing the liner 2 or abutting the guide sleeve assembly to be removed.

[0027] Working Principle: When using this utility model, firstly, the outer ring 1 is fitted onto the outside of the copper sleeve of the guide sleeve assembly of the high-pressure combined steam valve oil motor of the steam turbine. Then, by rotating the knob block 5, the screw 4 is driven to reverse and advance. The reverse-advancing screw 4 can push the liner 2 towards the guide sleeve assembly to be removed, so that the liner 2 is placed tightly against the outer diameter of the guide sleeve assembly. Then, each of the four liner 2 is placed against the outer wall of the guide sleeve assembly, and the anti-slip strip 7 is tightly abutted against the outer wall of the guide sleeve assembly to prevent the liner 2 from slipping and loosening when clamping and pulling out the guide sleeve assembly. Tighten the screw 4 evenly until the liner 2 tightly hugs the guide sleeve assembly. Then, the operator holds the screw 4 and drives the outer ring 1 and the liner 2 to lift synchronously. The guide sleeve assembly can be easily removed by the raised liner 2. For guide sleeve assemblies of different sizes, the operation of quickly removing guide sleeve assemblies of different diameters can be achieved by replacing the liner 2 with different diameters, thereby improving the applicability of this device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for removing the guide sleeve assembly of a high-pressure combined steam valve hydraulic actuator for a steam turbine, comprising an outer ring (1), characterized in that: The inner circumference of the outer ring (1) is provided with multiple liner tiles (2) for removing the guide sleeve assembly. The outer ring (1) is provided with threaded holes (3) around its perimeter. Each threaded hole (3) is screwed into a lead screw (4). The outer side of the liner tile (2) is provided with a connecting component in conjunction with the lead screw (4).

2. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 1, characterized in that... The connecting assembly includes a threaded groove in the middle of the outer side of the liner (2), an external threaded tube (8) screwed into the threaded groove, a bearing ring (10) fixedly installed in the inner ring of the external threaded tube (8), a connecting shaft (11) fixed in the inner ring of the bearing ring (10), and an external threaded post (12) fixed to the outer end of the connecting shaft (11). The inner end face of the screw (4) is provided with a threaded connection hole that matches the external threaded post (12). The external threaded post (12) is screwed into the threaded connection hole at the inner end of the screw (4).

3. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 2, characterized in that: The outer end of the connecting shaft (11) is a hexagonal prism-shaped shaft structure.

4. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydrant motor of a steam turbine according to claim 2, characterized in that: The outer end face of the externally threaded tube (8) is fixed with a hexagonal ring block (9) for the externally threaded tube (8) to be screwed and rotated.

5. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 1, characterized in that: The outer end of the lead screw (4) is fixed with a knob block (5), and the knob block (5) is hexagonal prism.

6. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 1, characterized in that: The lining tile (2) is an arc-shaped block, and multiple horizontally arranged anti-slip grooves are equidistantly opened on the inner arc surface of the lining tile (2).

7. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 6, characterized in that: Each of the anti-slip grooves is fixedly fitted with an anti-slip strip (7), which is a rubber strip.

8. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 7, characterized in that: The abutting end of the anti-slip strip (7) extends out of the anti-slip groove.

9. The device for removing the guide sleeve assembly of the high-pressure combined steam valve hydraulic actuator of a steam turbine according to claim 6, characterized in that: The edges on both sides of the inner arc surface of the lining tile (2) are arc-shaped.

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