CN211740616U

CN211740616U - Off-line maintenance device for thrust bearing in steam turbine

Info

Publication number: CN211740616U
Application number: CN202020894227.6U
Authority: CN
Inventors: 李巍鑫; 胡雨双; 刘志超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-10-23
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses an off-line maintenance device for a thrust bearing in a steam turbine, which comprises a rotary drum and a thrust bearing main body, wherein a limiting mechanism is fixedly arranged in the rotary drum, and a measuring mechanism is arranged at the front side of the rotary drum; the limiting mechanism comprises a fixed cylinder, a rotary hollow column is arranged inside the fixed cylinder, a limiting cylinder body is sleeved on the outer side of the rotary hollow column, an annular sliding groove is formed inside the limiting cylinder body, two moving blocks are arranged inside the annular sliding groove, and a limiting column is arranged on one side of each moving block. The utility model discloses a establish the rotor outside with spacing barrel cover, rotate rotatory hollow post and make rotatory hollow post get into spacing barrel, in rotatory hollow post released annular spout with spacing post through the movable block, spacing post inner wall contacted with the rotor outer wall, twisted bolt and locating pin, reduced rotor and thrust bearing and taken place the inconsistent probability of poplar degree, improved thrust bearing's life, and detect with low costs, avoided the expensive problem of cost.

Description

Off-line maintenance device for thrust bearing in steam turbine

Technical Field

The utility model relates to the technical field of automobiles, specifically be a thrust bearing off-line overhauls device in steam turbine.

Background

Thrust bearings are generally composed of two or more thrust washers and a plurality of rolling bodies, the thrust washers are generally divided into a shaft plate and a seat plate, and the rolling bodies are generally combined into a whole by iron or copper retainers in the most common mode. This type of bearing is most commonly a steel ball type thrust bearing.

The existing steam turbine thrust bearing off-line maintenance device has the following defects:

1. the conventional offline maintenance device for the thrust bearing in the steam turbine does not limit the rotor, the rotor is easy to be inconsistent with the degree of loft of the thrust bearing in a moving state, and the temperature of the thrust bearing is easy to be overhigh, so that the service life of the thrust bearing is shortened;

2. when the temperature of the thrust bearing is detected, the conventional offline maintenance device for the thrust bearing in the steam turbine usually adopts an intelligent detection device for detection, so that the detection cost is overhigh and the manufacturing cost is high, and the offline maintenance device for the thrust bearing in the steam turbine is provided for solving the conventional problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thrust bearing off-line overhauls device in steam turbine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an offline maintenance device for a thrust bearing in a steam turbine comprises a rotary drum and a thrust bearing main body, wherein a limiting mechanism is fixedly arranged in the rotary drum, a measuring mechanism is arranged on the front side of the rotary drum, and the measuring mechanism extends into the thrust bearing main body;

the limiting mechanism comprises a fixed cylinder, the fixed cylinder is fixedly arranged inside a rotary cylinder, a rotary hollow column is arranged inside the fixed cylinder, the rotary hollow column extends to one side of the fixed cylinder, the rotary hollow column is in threaded connection with the fixed cylinder, a limiting cylinder is sleeved on the outer side of the rotary hollow column, the rotary hollow column is in plug-in connection with the limiting cylinder, an annular sliding groove is formed in the limiting cylinder, two moving blocks are arranged inside the annular sliding groove and are matched with the annular sliding groove, a limiting column is arranged on one side of the moving blocks, the limiting column is arranged inside the annular sliding groove, the limiting column penetrates through the limiting cylinder and extends to the inside of the limiting cylinder, and the limiting column is in contact with the limiting cylinder.

Preferably, the measuring mechanism comprises a temperature test meter, the temperature test meter is fixedly arranged on the front side of the rotary drum, and the measuring end of the temperature test meter is arranged in the thrust bearing main body.

Preferably, two sliding grooves are formed in the limiting cylinder body, the two sliding grooves are formed in the outer sides of the two limiting columns respectively, a sliding block is arranged in each sliding groove, the sliding block and the sliding grooves form a sliding structure, and the sliding block is fixedly connected with the limiting columns.

Preferably, the rotor is arranged inside the limiting cylinder, and the outer wall of the rotor is in contact with the inner walls of the two limiting columns.

Preferably, a thrust bearing main body is fixedly arranged in the rotary drum, the thrust bearing main body is sleeved on the outer side of the rotor, and the thrust bearing main body is in contact with the rotor.

Preferably, a sealing door is fixedly arranged on the front side of the rotary drum, the sealing door is arranged on one side of the temperature test meter, and the sealing door is hinged with the rotary drum through a hinge.

Preferably, a plurality of threaded holes are formed in the rotating cylinder, a positioning pin is arranged at the top of the fixed cylinder, the positioning pin penetrates through the fixed cylinder and extends into the fixed cylinder, and the positioning pin is in threaded connection with the fixed cylinder.

Preferably, two bolts are arranged on the outer side of the limiting cylinder body, the two bolts penetrate through the limiting cylinder body and are in contact with the rotary hollow column, and the bolts are in threaded connection with the limiting cylinder body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a establish the rotor outside with spacing barrel cover, rotate rotatory hollow post and make rotatory hollow post get into spacing barrel, rotatory hollow post through the movable block with spacing post release annular spout in, spacing post inner wall contacts with rotor outer wall, then twist bolt and locating pin and make rotatory hollow post fixed with fixed section of thick bamboo and spacing barrel respectively, carry out spacing probability that can reduce rotor and thrust bearing emergence poplar degree inconsistent to the rotor, improved thrust bearing's life.

2. The utility model discloses a temperature test table carries out real-time detection to the thrust bearing main part, and detection cost is low, has avoided the expensive problem of cost.

Drawings

FIG. 1 is a side perspective view of the present invention;

FIG. 2 is a partial cross-sectional view of the drum of the present invention;

fig. 3 is an enlarged view of a portion of a structure in fig. 2 according to the present invention;

fig. 4 is an enlarged view of a portion of the structure B in fig. 3 according to the present invention;

fig. 5 is a perspective view of the rotary hollow column of the present invention.

In the figure: 1. a rotating drum; 2. a fixed cylinder; 3. rotating the hollow column; 4. a limiting cylinder body; 5. an annular chute; 6. a moving block; 7. a limiting column; 8. a chute; 9. a slider; 10. a rotor; 11. a thrust bearing body; 12. a temperature test meter; 13. and (4) sealing the door.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

Referring to fig. 1-5, the present invention provides an embodiment: an offline maintenance device for a thrust bearing in a steam turbine comprises a rotary drum 1 and a thrust bearing main body 11, wherein a limiting mechanism is fixedly arranged in the rotary drum 1, a measuring mechanism is arranged on the front side of the rotary drum 1, and the measuring mechanism extends into the thrust bearing main body 11;

the limiting mechanism comprises a fixed cylinder 2, the fixed cylinder 2 is fixedly arranged in a rotary cylinder 1, a rotary hollow column 3 is arranged in the fixed cylinder 2, the rotary hollow column 3 extends to one side of the fixed cylinder 2, the rotary hollow column 3 is in threaded connection with the fixed cylinder 2, a limiting cylinder 4 is sleeved outside the rotary hollow column 3, the rotary hollow column 3 is in plug connection with the limiting cylinder 4, an annular chute 5 is arranged in the limiting cylinder 4, two moving blocks 6 are arranged in the annular chute 5, the two moving blocks 6 are matched with the annular chute 5, a limiting column 7 is arranged at one side of each moving block 6, the limiting column 7 is arranged in the annular chute 5, the limiting column 7 penetrates through the limiting cylinder 4 and extends to the inside of the limiting cylinder 4, the limiting column 7 is in contact with the limiting cylinder 4, and the rotary hollow column 3 is inserted into the limiting cylinder 4, then rotatory hollow column 3 promotes movable block 6 and thinks the motion of rotor 10 direction, then movable block 6 promotes spacing post 7 and fixes rotor 10, can increase the utility model discloses a stability.

Further, the measuring mechanism comprises a temperature test meter 12, the temperature test meter 12 is fixedly arranged on the front side of the rotary drum 1, the measuring end of the temperature test meter 12 is arranged inside the thrust bearing main body 11, and the temperature of the thrust bearing main body 11 can be detected in real time through the temperature test meter 12.

Further, two chutes 8 are formed inside the limiting barrel 4 and are respectively arranged outside the two limiting columns 7, a sliding block 9 is arranged inside the chute 8, the sliding block 9 and the chute 8 form a sliding structure, the sliding block 9 and the limiting columns 7 are fixedly connected, and the limiting columns 7 can be limited through the chutes 8 and the sliding block 9.

Further, the inside rotor 10 that is equipped with of spacing barrel 4, rotor 10 outer wall contacts with two spacing post 7 inner walls, can fix rotor 10 through spacing post 7, can increase the utility model discloses a stability.

Further, a thrust bearing main body 11 is fixedly arranged inside the rotary drum 1, the thrust bearing main body 11 is sleeved on the outer side of the rotor 10, and the thrust bearing main body 11 is in contact with the rotor 10.

Further, a sealing door 13 is fixedly arranged on the front side of the rotating cylinder 1, the sealing door 13 is arranged on one side of the temperature test meter 12, the sealing door 13 is hinged to the rotating cylinder 1 through a hinge, and internal parts of the rotating cylinder 1 can be conveniently overhauled through the sealing door 13.

Further, a plurality of screw holes have been seted up on the rotary drum 1, 2 tops of solid fixed cylinder are equipped with the locating pin, the locating pin passes solid fixed cylinder 2 and extends to inside solid fixed cylinder 2, 2 threaded connection of locating pin and solid fixed cylinder can be with through a plurality of screw holes the utility model discloses with external equipment fixed connection.

Further, the 4 outsides of spacing barrel are equipped with two bolts, two the bolt all passes spacing barrel 4 and contacts with rotatory hollow post 3, bolt and 4 threaded connection of spacing barrel, through, can be fixed rotatory hollow post 3 remaining spacing barrel 4 through the bolt, increase the utility model discloses a stability.

The working principle is as follows: before the device is used, firstly, the utility model is connected with external equipment through a plurality of threaded holes, then the limiting cylinder body 4 is sleeved outside the rotor 10, then the rotary hollow column 3 is rotated to enable the rotary hollow column 3 to enter the limiting cylinder body 4, the rotary hollow column 3 is continuously rotated to apply pressure to the movable block 6, then the movable block 6 pushes the limiting column 7 out of the annular chute 5, the limiting column 7 moves towards the inside of the limiting cylinder body 4, then the inner wall of the limiting column 7 is contacted with the outer wall of the rotor 10 until the rotary hollow column 3 can not be rotated, at the moment, the bolt is screwed to fix the rotary hollow column 3 and the limiting cylinder body 4, then the positioning pin is screwed to fixedly connect the rotary hollow column 3 and the fixed cylinder 2, then the external equipment drives the rotor 10 to rotate through the rotary drum 1, the fixed cylinder 2, the rotary hollow column 3 and the limiting cylinder body 4, in the process, when the rotor 10 is inconsistent with the degree of freedom of the thrust bearing main body 11, the rotor 10 rubs with the thrust bearing main body 11, the thrust bearing main body 11 generates heat, then the temperature test meter 12 detects that the thrust bearing main body 11 has a temperature change, closes the external equipment power supply, opens the sealing door 13, then detaches the locating pin and the bolt one by one, rotates the rotary hollow column 3 to separate the limiting cylinder 4 from the rotor 10, and can overhaul the thrust bearing main body 11.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a thrust bearing off-line overhauls device in steam turbine, includes rotary drum (1) and thrust bearing main part (11), its characterized in that: a limiting mechanism is fixedly arranged in the rotary drum (1), a measuring mechanism is arranged on the front side of the rotary drum (1), and the measuring mechanism extends into the thrust bearing main body (11);

the limiting mechanism comprises a fixed cylinder (2), the fixed cylinder (2) is fixedly arranged inside a rotary cylinder (1), a rotary hollow column (3) is arranged inside the fixed cylinder (2), the rotary hollow column (3) extends to one side of the fixed cylinder (2), the rotary hollow column (3) is in threaded connection with the fixed cylinder (2), a limiting cylinder body (4) is sleeved outside the rotary hollow column (3), the rotary hollow column (3) is in plug connection with the limiting cylinder body (4), an annular sliding groove (5) is formed inside the limiting cylinder body (4), two moving blocks (6) are arranged inside the annular sliding groove (5), the two moving blocks (6) are matched with the annular sliding groove (5), a limiting column (7) is arranged on one side of each moving block (6), the limiting column (7) is arranged inside the annular sliding groove (5), and the limiting column (7) penetrates through the limiting cylinder body (4) and extends to the inside the limiting cylinder body (4), the limiting column (7) is in contact with the limiting cylinder body (4).

2. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 1, characterized in that: the measuring mechanism comprises a temperature test meter (12), the temperature test meter (12) is fixedly arranged on the front side of the rotary drum (1), and the measuring end of the temperature test meter (12) is arranged in the thrust bearing main body (11).

3. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 1, characterized in that: two chutes (8) are formed inside the limiting barrel body (4), the chutes (8) are formed in the outer sides of the two limiting columns (7) respectively, a sliding block (9) is arranged inside the chute (8), the sliding block (9) and the chute (8) form a sliding structure, and the sliding block (9) is fixedly connected with the limiting columns (7).

4. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 1, characterized in that: the rotor limiting device is characterized in that a rotor (10) is arranged inside the limiting cylinder body (4), and the outer wall of the rotor (10) is in contact with the inner walls of the two limiting columns (7).

5. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 4, wherein: the rotor is characterized in that a thrust bearing main body (11) is fixedly arranged in the rotary drum (1), the thrust bearing main body (11) is sleeved on the outer side of the rotor (10), and the thrust bearing main body (11) is in contact with the rotor (10).

6. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 2, wherein: the rotary drum is characterized in that a sealing door (13) is fixedly arranged on the front side of the rotary drum (1), the sealing door (13) is arranged on one side of the temperature test meter (12), and the sealing door (13) is hinged to the rotary drum (1) through a hinge.

7. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 1, characterized in that: the rotary drum is characterized in that the rotary drum (1) is provided with a plurality of threaded holes, the top of the fixed drum (2) is provided with a positioning pin, the positioning pin penetrates through the fixed drum (2) and extends into the fixed drum (2), and the positioning pin is in threaded connection with the fixed drum (2).

8. The off-line maintenance device for the thrust bearing in the steam turbine according to claim 1, characterized in that: two bolts are arranged on the outer side of the limiting cylinder body (4), the two bolts penetrate through the limiting cylinder body (4) and are in contact with the rotary hollow column (3), and the bolts are in threaded connection with the limiting cylinder body (4).