CN219337594U

CN219337594U - Pin disassembling mechanism for overhauling steam turbine of thermal power plant

Info

Publication number: CN219337594U
Application number: CN202320822067.8U
Authority: CN
Inventors: 王昊
Original assignee: Huaneng Weihai Power Generation Co Ltd
Current assignee: Huaneng Weihai Power Generation Co Ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-07-14
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a pin disassembling mechanism for overhauling a steam turbine of a thermal power plant, which comprises a base, wherein a top plate is arranged above the base, the top plate is fixedly connected with the base through a supporting rod, the middle part of the upper surface of the top plate is rotationally connected with a threaded sleeve through a bearing, the threaded sleeve is internally and spirally connected with a screw rod capable of moving up and down, and the bottom of the top plate is provided with a limiting structure for limiting and guiding the screw rod. This a thermal power plant's steam turbine overhauls with tearing round pin mechanism open, through clamping mechanism's setting, be convenient for carry out effectual spacing fixedly to the work piece, the phenomenon that can not take place to remove to the work piece in-process of guaranteeing to dismantle the round pin, be convenient for dismantle the round pin on it, and through the setting of two-way lead screw for two clamp splice simultaneously reverse movement has played good spacing effect, and easy operation is convenient.

Description

Pin disassembling mechanism for overhauling steam turbine of thermal power plant

Technical Field

The utility model belongs to the technical field of thermal power plants, and particularly relates to a pin removing mechanism for overhauling a steam turbine of a thermal power plant.

Background

A thermal power plant is a thermal power plant for short, and is a plant for producing electric energy by using combustible materials (such as coal) as fuel. The basic production process is as follows: the fuel heats water to generate steam when being combusted, chemical energy of the fuel is converted into heat energy, steam pressure pushes the steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives the generator to rotate, so that the mechanical energy is converted into electric energy. The thermal power plant steam turbine is matched with a thermal power plant, and the thermal power plant steam turbine needs to be overhauled when being used for a long time.

When overhauling the steam turbine of thermal power plant, need dismantle the round pin on the work piece, current dismantlement mode is the striking mode mostly, and the striking mode exists damage work piece surface or damage round pin class guide can't take out, and the even direct guide work piece of the more scrapped.

Disclosure of Invention

The utility model aims to provide a pin disassembling mechanism for overhauling a steam turbine of a thermal power plant, which aims to solve the technical problem in the background technology.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows: the utility model provides a thermal power plant's steam turbine overhauls with tearing round pin mechanism open, includes the base, the top of base is provided with the roof, through bracing piece fixed connection between roof and the base, the upper surface middle part of roof is connected with the screw sleeve through the bearing rotation, screw sleeve internal thread connection has the screw rod that can reciprocate, just the bottom of roof is provided with the limit structure who is used for carrying out spacing direction to the screw rod, the upper surface of roof is provided with and is used for driving screw sleeve pivoted actuating mechanism, the upper surface of base is provided with the clamping mechanism who is used for carrying out clamp in the middle to the work piece

Preferably, the base is of a cylindrical structure, a through hole coaxial with the screw rod is formed in the surface of the base, the diameter of the through hole is larger than that of the screw rod, and three supporting feet distributed in a circumferential array are arranged at the bottom of the base.

Preferably, the support rods are three, the side wall of the base is provided with three extending lugs distributed in a circumferential array, and each support rod corresponds to one extending lug.

Preferably, the limit structure comprises a guide plate, the upper surface of the guide plate is fixedly connected with the bottom of the top plate through three fixing rods distributed in a circumferential array, sliding holes which are connected with the screw in a sliding mode up and down are formed in the middle of the surface of the guide plate, limit grooves are formed in two side walls of the screw in the length direction of the two side walls of the screw, and limit blocks which are connected with the limit grooves in a sliding mode up and down are arranged on two side inner walls of the sliding holes.

Preferably, the driving mechanism comprises a motor arranged on the upper surface of the top plate, and the motor is connected with the threaded sleeve through a belt transmission assembly.

Preferably, the clamping mechanism comprises two clamping blocks which are distributed oppositely, a mounting groove is formed in one side of the base, which is located on the through hole, a bidirectional screw rod is connected in the mounting groove through bearing rotation, one end of the bidirectional screw rod extends to the outer side of the base and is provided with a rotary table, two symmetrically distributed movable ports are formed in the upper portion of the base, located on the upper surface of the bidirectional screw rod, of the clamping mechanism, a thread block is arranged at the bottom of the clamping block, the bottom of the thread block penetrates through the movable ports and is in threaded connection with the bidirectional screw rod, two sliding grooves which are distributed symmetrically with the movable ports are formed in the other side of the base, and a sliding block which is connected with the sliding grooves in a sliding mode is arranged at the bottom of the clamping block.

Preferably, two opposite sides of the clamping blocks are provided with V-shaped grooves, and rubber pads are arranged on the inner walls of the V-shaped grooves.

The pin disassembling mechanism for overhauling the steam turbine of the thermal power plant has the following advantages:

1. this a thermal power plant's steam turbine overhauls with tearing round pin mechanism open, through clamping mechanism's setting, be convenient for carry out effectual spacing fixedly to the work piece, the phenomenon that can not take place to remove to the work piece in-process of guaranteeing to dismantle the round pin, be convenient for dismantle the round pin on it, and through the setting of two-way lead screw for two clamp splice simultaneously reverse movement has played good spacing effect, and easy operation is convenient.

2. This a thermal power plant's steam turbine overhauls with tearing round pin mechanism open cooperation between screw sleeve and the screw rod for the screw rod reciprocates and extrudees the round pin, has avoided traditional knocking mode to cause the phenomenon of work piece damage to take place easily, and under the cooperation between spacing groove and the stopper, has played good spacing effect to the screw rod, makes the screw rod can only reciprocate, and can not rotate, thereby makes the screw rod extrude the round pin, is favorable to ejecting the work piece with the round pin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic view of a base structure according to the present utility model;

FIG. 3 is a schematic view of a clamping mechanism according to the present utility model;

FIG. 4 is a schematic structural view of a limiting structure according to the present utility model;

the figure indicates: 1. a base; 2. supporting feet; 3. extending the ears; 4. a support rod; 5. a top plate; 6. a threaded sleeve; 7. a motor; 8. a screw; 9. a limit groove; 10. a through hole; 11. a clamping mechanism; 12. a movable opening; 13. a chute; 14. a two-way screw rod; 15. clamping blocks; 16. a screw block; 17. a slide block; 18. a guide plate; 19. and a limiting block.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

In order to better understand the purpose, structure and function of the utility model, the utility model relates to a pin removing mechanism for overhauling a steam turbine of a thermal power plant, which is further described in detail below with reference to the accompanying drawings.

As shown in figures 1-4, the pin dismounting mechanism for overhauling a steam turbine of a thermal power plant comprises a base 1, wherein a top plate 5 is arranged above the base 1, the top plate 5 is fixedly connected with the base 1 through support rods 4, the support rods 4 are provided with three, the side wall of the base 1 is provided with three extending lugs 3 distributed in a circumferential array, each support rod 4 corresponds to one extending lug 3, a distance exists between the base 1 and the top plate 5, a space is provided for installing a workpiece, the middle part of the upper surface of the top plate 5 is rotationally connected with a threaded sleeve 6 through a bearing, a screw rod 8 capable of moving up and down is connected with the threaded sleeve 6 through internal threads, the base 1 is of a cylindrical structure, the surface of the base 1 is provided with a through hole 10 coaxial with the screw rod 8, the diameter of the through hole 10 is larger than that of the screw rod 8, so that the pin can fall through the through hole 10 when the screw rod 8 extrudes and pushes the pin, the bottom of the base 1 is provided with three supporting feet 2 distributed in a circumferential array, the stability of the device is improved, the bottom of the top plate 5 is provided with a limiting structure for limiting and guiding the screw rod 8, the limiting structure comprises a guide plate 18, the upper surface of the guide plate 18 is fixedly connected with the bottom of the top plate 5 through three fixing rods distributed in a circumferential array, the middle part of the surface of the guide plate 18 is provided with sliding holes which are connected with the screw rod 8 in a sliding manner up and down, two side walls of the screw rod 8 are provided with limiting grooves 9 along the length direction, two side inner walls of the sliding holes are provided with limiting blocks 19 which are connected with the limiting grooves 9 in a sliding manner up and down, when the threaded sleeve 6 rotates, the screw rod 8 is in threaded connection with the threaded sleeve 6 due to the fact that the screw rod 8 has a good limiting effect on the screw rod 8 under the cooperation between the limiting grooves 9 and the limiting blocks 19, so that the screw rod 8 can only move up and down, but can not rotate so that the screw rod 8 extrudes the pin, the pin is pushed out of the workpiece, a driving mechanism for driving the threaded sleeve 6 to rotate is arranged on the upper surface of the top plate 5, the driving mechanism comprises a motor 7 arranged on the upper surface of the top plate 5, the motor 7 is connected with the threaded sleeve 6 through a belt transmission assembly, and the threaded sleeve 6 is rotated under the action of the belt transmission assembly through the starting motor 7 so that the screw rod 8 moves up and down.

The upper surface of base 1 is provided with the clamping mechanism 11 that is used for carrying out clamp splice between two parties, clamping mechanism 11 includes two relatively distributed clamp splice 15, the one side that is located through-hole 10 in base 1 is provided with the mounting groove, be connected with bi-directional lead screw 14 through the bearing rotation in the mounting groove, the one end of bi-directional lead screw 14 extends to the base 1 outside and is provided with the carousel, and the top department that the upper surface of base 1 is located bi-directional lead screw 14 is provided with two symmetrically distributed movable mouths 12, the bottom of clamp splice 15 is provided with screw thread block 16, the bottom of screw thread block 16 runs through movable mouths 12 and with bi-directional lead screw 14 threaded connection, the upper surface of base 1 is located the opposite side of through-hole 10 and is provided with two spouts 13 with movable mouths 12 symmetric distribution, the bottom of clamp splice 15 is provided with the slider 17 with spout 13 sliding connection, when the round pin on the work piece is dismantled, rotate the carousel, thereby make two clamp splice 15 be close to each other, thereby it is fixed to press from both sides the work piece, the round pin on it is convenient to dismantle, easy operation is convenient, and the clamp splice 17 is provided with the V to carry out the type rubber pad under the two and the groove is set up to the groove, and the type of wearing and down is good, the type is set up to the groove is difficult to the groove is set up to the type to the side under the relative groove is easy to the clamp splice 15.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a thermal power plant's steam turbine overhauls with tearing open round pin mechanism which characterized in that: including base (1), the top of base (1) is provided with roof (5), through bracing piece (4) fixed connection between roof (5) and base (1), the upper surface middle part of roof (5) is connected with screw sleeve (6) through the bearing rotation, screw sleeve (6) internal thread connection has screw rod (8) that can reciprocate, just the bottom of roof (5) is provided with the limit structure who is used for carrying out spacing direction to screw rod (8), the upper surface of roof (5) is provided with and is used for driving screw sleeve (6) pivoted actuating mechanism, the upper surface of base (1) is provided with clamping mechanism (11) that are used for carrying out centering clamp to the work piece.

2. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 1, wherein: the base (1) is of a cylindrical structure, a through hole (10) coaxial with the screw rod (8) is formed in the surface of the base (1), the diameter of the through hole (10) is larger than that of the screw rod (8), and three supporting feet (2) distributed in a circumferential array are arranged at the bottom of the base (1).

3. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 1, wherein: the support rods (4) are arranged in three, three extending lugs (3) distributed in a circumferential array are arranged on the side wall of the base (1), and each support rod (4) corresponds to one extending lug (3).

4. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 1, wherein: the limiting structure comprises a guide plate (18), the upper surface of the guide plate (18) is fixedly connected with the bottom of the top plate (5) through three fixing rods distributed in a circumferential array, sliding holes which are connected with the screw rod (8) in a sliding mode up and down are formed in the middle of the surface of the guide plate (18), limiting grooves (9) are formed in the two side walls of the screw rod (8) along the length direction of the two side walls of the screw rod, and limiting blocks (19) which are connected with the limiting grooves (9) in a sliding mode up and down are arranged on the inner walls of the two sides of the sliding holes.

5. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 1, wherein: the driving mechanism comprises a motor (7) arranged on the upper surface of the top plate (5), and the motor (7) is connected with the threaded sleeve (6) through a belt transmission assembly.

6. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 2, wherein: clamping mechanism (11) are including two clamp splice (15) of relative distribution, the one side that is located through-hole (10) in base (1) is provided with the mounting groove, be connected with two-way lead screw (14) through the bearing rotation in the mounting groove, the one end of two-way lead screw (14) extends to the base (1) outside and is provided with the carousel, just the top department that the upper surface of base (1) is located two-way lead screw (14) is provided with two movable mouths (12) of symmetric distribution, the bottom of clamp splice (15) is provided with screw thread piece (16), the bottom of screw thread piece (16) runs through movable mouths (12) and with two-way lead screw (14) threaded connection, the opposite side that the upper surface of base (1) is located through-hole (10) is provided with two spouts (13) with movable mouthful (12) symmetric distribution, the bottom of clamp splice (15) is provided with slider (17) with spout (13) sliding connection.

7. The pin removing mechanism for overhauling steam turbine of thermal power plant according to claim 6, wherein: v-shaped grooves are formed in one side, opposite to the two clamping blocks (15), of each clamping block, and rubber pads are arranged on the inner walls of the V-shaped grooves.