CN215059185U

CN215059185U - Oil plug for dynamic balance of steam turbine rotor

Info

Publication number: CN215059185U
Application number: CN202120821349.7U
Authority: CN
Inventors: 冯江舟
Original assignee: Zhejiang Lezhou Auto Parts Technology Co ltd
Current assignee: Zhejiang Lezhou Auto Parts Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-07
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a steam turbine rotor is oil plug for dynamic balance, which comprises a thick plate, connection structure is installed at the top of thick plate, connection structure includes plectane, recess and first bolt, the bottom of plectane offsets tightly with the top of thick plate. Through the connection structure in the plectane bottom with the thick plate top laminate mutually, let recess and round mouth position align simultaneously, cooperate first bolt to fix thick plate and plectane afterwards, recess and round mouth form two kinds of inserted bar connectors, can change the use after wearing and tearing, it is not hard up to have avoided pegging graft, normal rotation has been ensured, let the rubber pad outside laminate with the thick plate inner wall mutually simultaneously, cooperate the second bolt to fix thick plate and sheath afterwards, sealed thick plate two-body has been realized, be convenient for change after the local damage, the leakage has been avoided, make the bent piece top support tightly with thick rod bottom, thereby the threaded rod bottom forms inboard slope, be convenient for peg graft with the hydraulic fluid port during the use, conveniently insert the rotation, convenient to use and popularization.

Description

Oil plug for dynamic balance of steam turbine rotor

Technical Field

The utility model relates to a steam turbine rotor is oil plug technical field for the dynamic balance specifically is an oil plug for steam turbine rotor dynamic balance.

Background

The steam turbine is also called a steam turbine engine and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously acts outwards, dynamic balance needs to be detected during use, and dynamic balance needs to be detected by matching with an oil plug.

The current oil plug for the dynamic balance of steam turbine rotor needs to cooperate the inserted bar to use when using, and long-time wearing and tearing seriously lead to becoming flexible, influence normal rotation, cause unable use to inside seal can not be changed, and often the dismantlement installation can cause local damage, leads to leaking, accords with the socket size when the bottom is connected simultaneously, is not convenient for insert the rotation, and is troublesome to use, is not conform to modern's user demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam turbine rotor is oil plug for dynamic balance to it needs the cooperation inserted bar to use to propose current steam turbine rotor for dynamic balance oil plug in the above-mentioned background art when using to solve, and long-time wearing and tearing seriously lead to becoming flexible, influence normal rotation, cause the problem of unable use.

In order to achieve the above object, the utility model provides a following technical scheme: an oil plug for dynamic balance of a steam turbine rotor comprises a thick plate, wherein a connecting structure is installed at the top of the thick plate;

the connecting structure comprises a circular plate, a groove and a first bolt;

the bottom of the circular plate is abutted against the top of the thick plate, the inner wall of the circular plate is provided with a groove, and the front side and the rear side of the top of the circular plate are respectively in threaded connection with the front side and the rear side of the thick plate through first bolts. The inserted bar is convenient to insert and use, and the service life is prolonged.

Preferably, the top of the thick plate is processed with a round mouth. The round mouth is convenient for inserting the inserted link.

Preferably, the left side and the right side of the bottom of the thick plate are both provided with a sealing structure;

the sealing structure comprises a sheath, a rubber pad and a second bolt;

the inner walls of the two sheaths are respectively spliced with the left side and the right side of the bottom of the thick plate, the front end and the rear end of the inner side of each arc plate are respectively fixedly connected with the left side and the right side of the rubber pad, the outer sides of the two rubber pads are respectively attached to the inner side of the thick plate, and the outer sides of the two sheaths are respectively in threaded connection with the left side and the right side of the thick plate through second bolts. The replacement of the rubber pad is realized, and the sealing is ensured.

Preferably, the bottom of the thick plate is provided with a fixed structure;

the fixing structure comprises a thick rod, a threaded rod and a bent block;

the top of the thick rod is fixedly connected with the bottom of the thick plate, the bottom of the thick rod is in threaded connection with the top of the threaded rod, and the bottom of the threaded rod is fixedly connected with the top of the bent block. The bottom of the threaded rod forms an inner side slope, so that the oil port can be conveniently plugged.

Preferably, threads are machined below the outer wall of the thick rod. The screw thread is conveniently connected with the oil port.

Compared with the prior art, the beneficial effects of the utility model are that: according to the oil plug for the dynamic balance of the steam turbine rotor, the bottom of the circular plate in the connecting structure is attached to the top of the thick plate, the groove is aligned to the round opening, then the thick plate and the circular plate are fixed by matching with the first bolt, two insertion rod connecting ports are formed by the groove and the round opening, the oil plug can be replaced and used after being worn, the insertion looseness is avoided, and the normal rotation is ensured;

the two side sheaths in the sealing structure are respectively sleeved with the two sides below the thick plate, the outer side of the rubber pad is attached to the inner wall of the thick plate, and then the thick plate and the sheaths are fixed by matching with a second bolt, so that the two sealed thick plates are integrated, the replacement is convenient after the local damage, and the leakage is avoided;

carry out threaded connection through threaded rod and thick pole bottom among the fixed knot structure, make the bent piece top support tightly with thick pole bottom to the threaded rod bottom forms inboard slope, is convenient for peg graft with the hydraulic fluid port during the use, conveniently inserts the rotation, convenient to use and popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view showing a connection relationship between a circular plate, a groove and a first bolt in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the sheath, the rubber pad and the second bolt in FIG. 1;

fig. 4 is a schematic view of the connection relationship between the thick rod, the threaded rod and the curved block in fig. 1.

In the figure: 1. thick plate, 2, connecting structure, 201, circular plate, 202, groove, 203, first bolt, 3, sealing structure, 301, sheath, 302, rubber pad, 303, second bolt, 4, fixing structure, 401, thick rod, 402, threaded rod, 403, curved block, 5, round mouth, 6, screw thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a steam turbine rotor is oil plug for dynamic balance, including thick plate 1, connection structure 2 is installed at the top of thick plate 1, connection structure 2 includes plectane 201, recess 202 and first bolt 203, the bottom of plectane 201 offsets tightly with the top of thick plate 1, the inner wall processing of plectane 201 has recess 202, can drive thick plate 1 behind the recess 202 grafting inserted bar and rotate, both sides are respectively through first bolt 203 and thick plate 1 front and back both sides threaded connection around the top of plectane 201, first bolt 203 upwards rotates the back and can make plectane 201 break away from thick plate 1.

The top of the thick plate 1 is provided with a round opening 5, the left side and the right side of the bottom of the thick plate 1 are both provided with a sealing structure 3, the sealing structure 3 comprises a sheath 301, a rubber pad 302 and a second bolt 303, the inner walls of the two sheaths 301 are respectively spliced with the left side and the right side of the bottom of the thick plate 1, the sheath 301 can be separated from the thick plate 1 upwards under the stress, the front end and the rear end of the inner sides of the two arc plates 301 are respectively fixedly connected with the left side and the right side of the rubber pad 302, the outer sides of the two rubber pads 302 are respectively attached to the inner side of the thick plate 1, the outer sides of the two sheaths 301 are respectively in threaded connection with the left side and the right side of the thick plate 1 through the second bolt 303, the sheath 301 can be separated from the thick plate 1 through the outward rotation of the second bolt 303, the bottom of the thick plate 1 is provided with a fixing structure 4, the fixing structure 4 comprises a thick rod 401, a threaded rod 402 and a curved block 403, the top of the thick rod 401 is fixedly connected with the bottom of the threaded rod 1, the threaded rod 402 is stressed to rotate up and down through the bottom of the thick rod 401, the bottom of the threaded rod 402 is fixedly connected with the top of the bent block 403, threads 6 are machined on the lower portion of the outer wall of the thick rod 401, and the threads are conveniently connected with the oil port.

In this example, when using the oil plug, the bottom of the circular plate 201 is now attached to the top of the thick plate 1, then the external arrangement of the circular plate 201 is adjusted to align the groove 202 with the round opening 5, then the circular plate 201 and the thick plate 1 are fixedly connected by matching with the first bolt 203, then the inner wall of the sheath 301 is sleeved with the two sides of the thick plate 1, meanwhile, the outer wall of the rubber pad 302 is attached to the inner wall of the thick plate 1, then the thick plate 1 and the sheath 301 are fixed by matching with the second bolt 303, then the threaded rod 402 is gradually rotated to the top of the thick rod 401 until the bottom of the curved block 403 abuts against the thick rod 401, when connecting with a steam turbine, the curved block 403 is inserted into the oil port to facilitate the quick alignment of the thick rod 401, then the thick rod 401 is rotated to the inside of the oil port by matching with the outer wall thread 6 when rotating the thick plate 1, then the external insert rod is inserted into the groove and the inside of the round opening 5, the insert rod drives the thick plate 1 to rotate by matching with the insert rod, until the bottom of the thick plate 1 is tightly propped against the top of the oil port, the sheath and the rubber pad on the inner side of the thick plate 1 are additionally sealed with the oil port, so that the leakage is prevented.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The utility model provides a steam turbine rotor is oil plug for dynamic balance, includes thick plate (1), its characterized in that: the top of the thick plate (1) is provided with a connecting structure (2);

the connecting structure (2) comprises a circular plate (201), a groove (202) and a first bolt (203);

the bottom of the circular plate (201) is abutted against the top of the thick plate (1), a groove (202) is formed in the inner wall of the circular plate (201), and the front side and the rear side of the top of the circular plate (201) are in threaded connection with the front side and the rear side of the thick plate (1) through first bolts (203).

2. The oil plug for dynamic balancing of a steam turbine rotor according to claim 1, wherein: the top of the thick plate (1) is provided with a round opening (5).

3. The oil plug for dynamic balancing of a steam turbine rotor according to claim 1, wherein: sealing structures (3) are arranged on the left side and the right side of the bottom of the thick plate (1);

the sealing structure (3) comprises a sheath (301), a rubber pad (302) and a second bolt (303);

the inner walls of the two sheaths (301) are respectively spliced with the left side and the right side of the bottom of the thick plate (1), the front end and the rear end of the inner side of each sheath (301) are fixedly connected with the left side and the right side of the rubber pad (302), the outer sides of the two rubber pads (302) are respectively attached to the inner side of the thick plate (1), and the outer sides of the two sheaths (301) are respectively in threaded connection with the left side and the right side of the thick plate (1) through second bolts (303).

4. The oil plug for dynamic balancing of a steam turbine rotor according to claim 1, wherein: the bottom of the thick plate (1) is provided with a fixed structure (4);

the fixing structure (4) comprises a thick rod (401), a threaded rod (402) and a curved block (403);

the top of the thick rod (401) is fixedly connected with the bottom of the thick plate (1), the bottom of the thick rod (401) is in threaded connection with the top of the threaded rod (402), and the bottom of the threaded rod (402) is fixedly connected with the top of the bent block (403).

5. The oil plug for dynamic balancing of a steam turbine rotor according to claim 4, wherein: and a thread (6) is machined below the outer wall of the thick rod (401).