CN215240593U

CN215240593U - Quick dismounting device for overhauling steam turbine unit

Info

Publication number: CN215240593U
Application number: CN202121185607.3U
Authority: CN
Inventors: 杨勇; 刘鑫; 朱江; 杨剑
Original assignee: Sichuan Huadian Gongxian Power Generation Co ltd
Current assignee: Sichuan Huadian Gongxian Power Generation Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-21
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a quick dismounting device for overhauling a steam turbine unit, which comprises a main rod piece, an impact sleeve, an impact head, a connector and a connector; the impact sleeve is sleeved on the main rod piece, and the impact sleeve is connected with the main rod piece in a sliding fit manner; the impact head is fixedly arranged at one end of the main rod piece; the connector is arranged at the other end of the main rod and is in floating connection with the main rod; the connector is detachably connected with the connector. The utility model discloses solved the problem that current device operating efficiency is low, maneuverability is poor well, the device simple structure has fine operability and the adaptability under the different operating modes to can guarantee the efficiency of dismantlement well.

Description

Quick dismounting device for overhauling steam turbine unit

Technical Field

The utility model relates to a steam turbine unit maintains technical field, in particular to steam turbine unit overhauls quick dismounting device.

Background

In a thermal power plant, a steam turbine unit needs to be regularly maintained and overhauled to ensure the safe and stable operation of the steam turbine unit. The maintenance and repair time of the steam turbine unit directly influences the economic benefit of the power plant, so higher requirements on the aspects of the maintenance efficiency, the safety and the like of the steam turbine unit are provided.

In the overhaul process of the steam turbine unit, the positioning pins for connecting the joint surfaces in the steam turbine unit are usually required to be pulled out, so as to perform the integral disassembly operation on the steam turbine unit. Because the number of the positioning pins in the steam turbine unit is large, the dismounting efficiency of the positioning pins directly influences the overall maintenance efficiency. At present, direct knocking or jacking modes are usually adopted for dismounting the positioning pins, but the space of field operation is often narrow, so that the operation space is often insufficient, the positioning pins are easy to deform and damage, the positioning pins are clamped in pin holes, and the dismounting efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that the operating efficiency that exists is low among the prior art, maneuverability is poor, provide a quick dismounting device of steam turbine unit maintenance, have fine operability to can guarantee the efficiency of dismantlement well.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the quick dismounting device for the overhaul of the steam turbine unit comprises a main rod piece, an impact sleeve, an impact head, a connector and a connector;

the impact sleeve is sleeved on the main rod piece, and the impact sleeve is connected with the main rod piece in a sliding fit manner;

the impact head is fixedly arranged at one end of the main rod piece;

the connector is arranged at the other end of the main rod and is in floating connection with the main rod;

the connector is detachably connected with the connector.

Among the above-mentioned technical scheme, furtherly, through round pin axle hinged joint between connector and the mobile jib spare, make the connector can wind round pin axle rotates, be provided with compression spring between connector and the mobile jib spare.

Among the above-mentioned technical scheme, furtherly, the member tip of mobile jib is provided with the mounting groove, forms the installing support that is concave type structure at the member tip of mobile jib, the connecting portion setting of connector in the mounting groove, and through round pin hub connection between the installing support, compression spring sets up between member terminal surface of mobile jib and connector terminal surface.

In the above technical scheme, further, a boss is arranged between the end face of the connecting head and the connecting portion, and one end of the compression spring is sleeved on the boss in a matching manner.

In the above technical scheme, further, the end of the main rod piece is provided with a groove, and one end of the compression spring is arranged in the groove in a matching manner.

In the above technical scheme, further, a spherical groove is provided at an end portion of the impact sleeve opposite to the impact head, and a spherical protrusion portion matched with the spherical groove is correspondingly provided on the impact head.

In the above technical scheme, further, the impact head is sleeved on the main rod piece, a limiting end face matched with the upper step end face of the main rod piece is arranged on the impact head, and the impact head is fixed on the main rod piece through a locking nut.

Among the above-mentioned technical scheme, further, mobile jib spare includes upper end pole, lower extreme pole and sets up a plurality of intermediate stems between upper end pole and lower extreme pole, be threaded connection between upper end pole, lower extreme pole, the intermediate stem.

The utility model discloses the beneficial effect who has:

1) the utility model has simple structure and convenient use and operation; set up to floating connection structure between connector and the mobile jib spare, in the dismantlement operation process of locating pin, have the swing space of certain angle between connector and the mobile jib spare, when having certain skew between pin removal effort and the mobile jib spare, can prevent effectively that the connection between connector and the locating pin from taking place to warp or directly disconnected in the locating pin.

2) The impact sleeve and the impact head in the device are matched through a spherical structure, so that the impact acting force direction and the acting force contact area during pin pulling are optimized, and the operation efficiency of disassembling the positioning pin can be effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the device of the present invention.

Fig. 2 is a partial sectional view of the structure of the embodiment of the device of the present invention.

Fig. 3 is a schematic view of the connection structure of the impact sleeve and the impact head on the main rod in the embodiment of the present invention.

Fig. 4 is a schematic view of the structure of the impact head in the embodiment of the present invention.

Fig. 5 is a schematic diagram of a connector structure in an embodiment of the present invention.

Fig. 6 is a partial schematic view of fig. 2 at a.

Fig. 7 is a partial schematic view of fig. 2 at B.

In the figure: 100. the main rod piece comprises a main rod piece 101, an upper end rod 102, an intermediate rod 103, a lower end rod 104, a pin shaft 105, a locking nut 106, an installation groove 107, an installation support 108, a groove 109 and a step end face;

200. an impact sleeve 201, a spherical groove;

300. an impact head 301, a spherical convex part 302 and a limiting end face;

400. a connector 401, a connecting part 402 and a boss;

500. a connector;

600. compressing the spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1, 2 and 3, the quick dismounting device for overhauling a steam turbine unit in the embodiment includes a main rod 100, an impact sleeve 200, an impact head 300, a connector 400 and a connector 500; the impact sleeve 200 is sleeved on the main rod piece 100, and the impact sleeve 200 is connected with the main rod piece 100 in a sliding fit manner, so that the impact sleeve can reciprocate along the axial direction of the main rod piece; the impact head 300 is fixedly arranged at one end of the main rod 100; the connector 400 is arranged at the other end of the main rod 100 and is connected with the main rod 100 in a floating manner; the connector 500 and the connector 400 are detachably connected through threads, and a proper connector is selected according to the positioning pins to be installed on the connector, so that the connector is suitable for the disassembling operation of different positioning pins. When the device is used for disassembling the positioning pin, a proper connector is selected to be installed on the connecting head, the connecting head is connected with the positioning pin, the impact sleeve is driven to move towards the impact head, the impact sleeve impacts the impact head, an acting force in the opposite direction is applied to the positioning pin, and the positioning pin is pulled out. Set up to the connection structure that floats between connector and the mobile jib spare in this embodiment, in the dismantlement operation process of locating pin, make the swing space that has certain angle between connector and the mobile jib spare, when having certain skew between pin pulling effort and the mobile jib spare, can prevent effectively that the connection between connector and the locating pin from taking place to warp or directly disconnected in the locating pin.

In this embodiment, the connector 400 is hinged to the main rod 100 by a pin 104, so that the connector 400 can rotate around the pin 104, and a compression spring 600 is disposed between the connector 400 and the main rod 100. Specifically, as shown in fig. 7, a mounting groove 106 is provided at an end of the main rod 100, a mounting bracket 107 having a concave structure is formed at the end of the main rod 100, a connecting portion 401 of the connector 400 is disposed in the mounting groove 106 and connected to the mounting bracket 107 through a pin 104, and a compression spring 600 is disposed between an end surface of the main rod 100 and an end surface of the connector 400.

As shown in fig. 5 and 7, a boss 402 is disposed between the end face of the connector 400 and the connecting portion, and one end of the compression spring 600 is fitted over the boss 402 to limit the compression spring; the end of the main rod 100 is provided with a groove 108, and the other end of the compression spring 600 is arranged in the groove 108 in a matching manner to limit the other end of the compression spring. When the installation, set up compression spring both ends respectively on recess and boss, carry on spacingly through recess and boss to compression spring both ends, guarantee the stability of spring effect between connector and mobile jib spare. When the connector is installed, the connecting part of the connector stretches into the mounting groove, certain acting force is applied to the connector to press the connector into the mounting groove, the pin holes in the connecting part are aligned with the pin holes in the mounting bracket, the pin shaft is inserted into the corresponding pin holes, and floating connection between the connector and the main rod piece is achieved.

As shown in fig. 5, the end of the connecting portion 401 of the connector 400 is configured as an arc structure, so that when the connector is disposed in the mounting groove, the connector does not interfere with the end of the mounting groove.

Referring to fig. 3, 4 and 6, in this embodiment, a spherical recess 201 is disposed at an end of the impact sleeve 200 opposite to the impact head, and a spherical protrusion 301 is correspondingly disposed on the impact head 300 and is engaged with the spherical recess, so that a spherical engagement is formed between the impact sleeve and the impact head when the two interact with each other. Through the cooperation of spherical structure between impact sleeve and the impact head, impact effort direction and effort area of contact when having optimized the pin pulling, can effectively improve the operating efficiency that the locating pin was dismantled.

As shown in fig. 6, the impact head 300 is sleeved on the main rod 100, the impact head 300 is provided with a limit end surface 302 matched with the step end surface 109 on the main rod 100, and the impact head 300 is fixed on the main rod 100 through a lock nut 105; the impact head is convenient to fix and install on the main rod piece, the installation accuracy of the impact head on the main rod piece is guaranteed, and the action direction of impact force during pin pulling is further guaranteed.

In this embodiment, the main rod 100 includes an upper rod 101, a lower rod 103, and a plurality of intermediate rods 102 disposed between the upper rod and the lower rod, and the upper rod 101, the lower rod 103, and the intermediate rods 102 are all connected by threads. The setting number of the intermediate rods on the main rod pieces is reasonably configured according to the operation space on the steam turbine unit, and the length of the main rod pieces is flexibly adjusted to meet the use requirements under different operation environments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which are used herein, refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the product of the present invention is usually placed when in use, and are only used for convenience of description, and are not intended to indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The quick dismounting device for the overhaul of the steam turbine unit is characterized by comprising a main rod piece, an impact sleeve, an impact head, a connector and a connector;

the impact head is fixedly arranged at one end of the main rod piece;

the connector is detachably connected with the connector.

2. The steam turbine unit overhauling quick dismounting device according to claim 1, wherein the connector is hinged to the main rod member through a pin shaft, so that the connector can rotate around the pin shaft, and a compression spring is arranged between the connector and the main rod member.

3. The steam turbine unit overhauling quick dismounting device according to claim 2, wherein a mounting groove is formed in the end of the main rod, a mounting bracket with a concave structure is formed in the end of the main rod, the connecting part of the connector is arranged in the mounting groove and connected with the mounting bracket through a pin shaft, and the compression spring is arranged between the end surface of the main rod and the end surface of the connector.

4. The steam turbine unit overhauling quick dismounting device according to claim 3, wherein a boss is arranged on the end face of the connecting head and between the connecting parts, and one end of the compression spring is sleeved on the boss in a matching manner.

5. The turbine unit overhauling quick dismounting device according to claim 3 or 4, wherein the end part of the main rod piece is provided with a groove, and one end of the compression spring is arranged in the groove in a matching way.

6. The turbine unit overhauling quick dismounting device according to claim 1 or 2, wherein a spherical groove is arranged at an end part of the impact sleeve opposite to the impact head, and a spherical convex part matched with the spherical groove is correspondingly arranged on the impact head.

7. The steam turbine unit overhauling quick dismounting device according to claim 6, wherein the impact head is sleeved on the main rod piece, a limiting end surface matched with the upper step end surface of the main rod piece is arranged on the impact head, and the impact head is fixed on the main rod piece through a locking nut.

8. The steam turbine unit overhauling quick dismounting device according to claim 1, wherein the main rod piece comprises an upper end rod, a lower end rod and a plurality of intermediate rods arranged between the upper end rod and the lower end rod, and the upper end rod, the lower end rod and the intermediate rods are all in threaded connection.