CN211388461U

CN211388461U - Novel steam turbine shaft vibration measurement support

Info

Publication number: CN211388461U
Application number: CN201922405463.7U
Authority: CN
Inventors: 费秀国; 林钢
Original assignee: Nanjing Daneng Power Technology Co ltd
Current assignee: Nanjing Daneng Power Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-01
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a novel turbine shaft vibration measuring bracket, which comprises a base and an annular frame; the top of the base is fixedly provided with an annular frame, four corners of the annular frame are provided with through holes, bolts are inserted into the through holes, and clamping blocks are arranged at the bottom ends of the bolts and positioned in the annular frame; the support is fixedly arranged at four corners of the annular frame and on two sides of the through hole, the movable seat is arranged at the top of the support, and the inner ring of the movable seat is provided with a movable groove. The utility model discloses a rotatory adjustable ring of handle, the adjustable ring then can be located the sliding seat and rotate this moment, the bolt then can be located the screw internal rotation, the bolt then can be located the screw and reciprocate in perforating this moment, can drive reciprocating of grip block through reciprocating of bolt, can realize the centre gripping support work to the bearing this moment, and the difference of screw rod displacement distance can realize the centre gripping work of equidimension bearing not, the flexibility improves greatly, and the centre gripping stability is high, easy operation is convenient.

Description

Novel steam turbine shaft vibration measurement support

Technical Field

The utility model relates to a turbine shaft vibration measurement technical field specifically is a novel turbine shaft vibration measurement support.

Background

At present, the inner blade of a steam turbine is an elastic rod piece fixed at the root, when the inner blade is impacted by an instantaneous external force, the inner blade does periodic oscillation near the original balance position, the oscillation is called free oscillation, the oscillation frequency is called the natural oscillation frequency, when the inner blade is acted by the periodic external force, the inner blade can oscillate according to the frequency of the external force and is irrelevant to the natural oscillation frequency of the inner blade, namely, the inner blade is forced oscillation, when the inner blade is forced oscillation, if the natural oscillation frequency of the inner blade is equal to or integral multiple of the frequency of the exciting force, the inner blade resonates, the amplitude and the oscillation stress are increased sharply, the fatigue damage of the inner blade can be caused, therefore, the qualified bearing can greatly ensure the service life of the inner blade, the quality of the bearing needs to be detected by a measuring device, the bearing needs to be supported during detection, but the existing novel turbine shaft oscillation measuring support has some defects, for example;

the current novel turbine shaft vibration measurement support is fixed comparatively inconvenient, can't be suitable for not the bearing of equidimension for the bearing size can't support simultaneously, thereby can't measure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel turbine shaft vibration measurement support has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel support for measuring shaft vibration of a steam turbine comprises a base and an annular frame;

the top of the base is fixedly provided with an annular frame, four corners of the annular frame are provided with through holes, bolts are inserted into the through holes, and clamping blocks are arranged at the bottom ends of the bolts and positioned in the annular frame;

the support is fixedly arranged at four corners of the annular frame and positioned at two sides of the through hole, the movable seat is arranged at the top of the support, a movable groove is formed in the inner ring of the movable seat, a movable block is movably arranged in the movable groove, an adjusting ring is arranged at the top of the movable block, a screw hole is formed in the adjusting ring, and the bolt is rotatably penetrated through the screw hole;

the bolt both sides have been seted up the spout, the inside both sides integrated into one piece of punching has the slider, the slider is arranged in the spout.

As an optimized embodiment of the utility model, the ball groove has all been seted up to movable block bottom and activity groove top, ball inslot movable mounting has the ball.

As a preferred embodiment of the present invention, the handle is installed at four corners of the adjusting ring.

As a preferred embodiment of the utility model, the rubber pad is pasted to the grip block bottom.

As an optimal implementation mode of the utility model, the welding of base both sides has the mount pad, set up the mounting hole in the mount pad.

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

1. the utility model relates to a novel turbine shaft vibration measurement support, through the rotatory adjustable ring of handle, the adjustable ring then can be located the sliding seat and rotate this moment, the bolt then can be located the screw internal rotation, the bolt then can be located the screw and reciprocate in perforating this moment, can drive reciprocating of grip block through reciprocating of bolt, can realize the centre gripping support work to the bearing this moment, and the difference of screw rod displacement distance can realize the centre gripping work of equidimension bearing not, the flexibility improves greatly, and the clamping stability is high, easy operation is convenient.

2. The utility model relates to a novel steam turbine shaft vibration measurement support thereby is located the spout through the slider and removes the realization spacing to the screw rod, and it is rotatory to drive the screw rod to appear when avoiding the adjustable ring rotation, ensures that the screw rod can not reciprocate under the condition of rotation, avoids the grip block rotatory to appear.

3. The utility model relates to a novel turbine shaft vibration measurement support is located the ball inslot through the ball and rolls thereby and reduce the frictional force when the movable block is located the activity inslot internal rotation, makes the rotation of its adjustable ring more laborsaving convenient.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a novel turbine shaft vibration measurement bracket according to the present invention;

FIG. 2 is a top view of the adjusting ring of the novel turbine shaft vibration measuring stand according to the present invention;

FIG. 3 is a top view of the ring frame of the novel turbine shaft vibration measurement stand according to the present invention;

FIG. 4 is a top view of a bolt of a novel turbine shaft vibration measurement bracket according to the present invention;

FIG. 5 is a schematic view of the adjustable ring and the movable seat of the novel turbine shaft vibration measurement bracket according to the present invention;

fig. 6 is the utility model relates to a novel base bottom structure chart of turbine shaft vibration measurement support.

In the figure: 1. a base; 2. an annular frame; 3. a bolt; 4. a clamping block; 5. a rubber pad; 6. a support; 7. a movable seat; 8. an adjusting ring; 9. a handle; 10. mounting blocks; 11. a screw hole; 12. mounting holes; 13. a slider; 14. perforating; 15. a chute; 16. a movable groove; 17. a movable block; 18. a ball groove; 19. and a ball.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and for simplicity of description, but do not indicate or imply that the device or element referred to must have a specific shape or simplified description, but do not indicate or imply that the device or element referred to 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.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. 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. 1-6, the present invention provides a technical solution: a novel support for measuring shaft vibration of a steam turbine comprises a base 1 and an annular frame 2;

the top of the base 1 is fixedly provided with an annular frame 2, four corners of the annular frame 2 are provided with through holes 14, bolts 3 are inserted into the through holes 14, and clamping blocks 4 are arranged at the bottom ends of the bolts 3 and positioned in the annular frame 2;

the support 6 is fixedly installed at four corners of the annular frame 2 and located on two sides of the through hole 14, the movable seat 7 is installed at the top of the support 6, a movable groove 16 is formed in the inner ring of the movable seat 7, a movable block 17 is movably installed in the movable groove 16, an adjusting ring 8 is installed at the top of the movable block 17, a screw hole 11 is formed in the adjusting ring 8, and the bolt 3 penetrates through the screw hole 11 in a rotating mode;

the bolt 3 both sides have been seted up spout 15, the inside both sides integrated into one piece of perforation 14 has slider 13, slider 13 is arranged in spout 15.

In this embodiment (please refer to fig. 1, fig. 2, fig. 3 and fig. 4), the adjusting ring 8 is rotated by the handle 9, at this time, the adjusting ring 8 can be located on the movable seat 7 to rotate, the bolt 3 can be located in the screw hole 11 to rotate, at this time, the bolt 3 can be located in the screw hole 11 and the through hole 14 to move up and down, the up and down movement of the bolt 3 can drive the clamping block 4 to move up and down, at this time, the clamping and supporting work for the bearings can be realized, and the clamping work for the bearings with different sizes can be realized by the difference of the moving distance of the screw rod 3, the flexibility is greatly improved, the clamping.

The bottom of the movable block 17 and the top of the movable groove 16 are both provided with ball grooves 18, and balls 19 are movably arranged in the ball grooves 18.

In this embodiment (see fig. 5), the balls 19 are located in the ball grooves 18 to roll, so as to reduce the friction force when the movable block 17 rotates in the movable groove 16, and the rotation of the adjusting ring 8 is more labor-saving and convenient.

Wherein, handles 9 are arranged at four corners of the adjusting ring 8.

In this embodiment (see fig. 1), the handle 9 can make the rotation of the adjusting ring 8 more labor-saving.

Wherein, a rubber pad 5 is stuck at the bottom end of the clamping block 4.

In this embodiment (see fig. 1), the rubber pad 5 can increase the friction force when the clamping block 4 clamps the bearing, so that the clamping is more stable, and the gap during clamping is reduced to ensure stable clamping.

The base comprises a base body 1 and is characterized in that mounting bases 10 are welded to two sides of the base body 1, and mounting holes 12 are formed in the mounting bases 10.

In this embodiment (see fig. 6), the fixing and installation of the device on the mounting base can be facilitated through the mounting hole 12.

The utility model relates to a novel turbine shaft vibration measurement bracket, which comprises a bracket 1 and a base; 2. an annular frame; 3. a bolt; 4. a clamping block; 5. a rubber pad; 6. a support; 7. a movable seat; 8. an adjusting ring; 9. a handle; 10. mounting blocks; 11. a screw hole; 12. mounting holes; 13. a slider; 14. perforating; 15. a chute; 16. a movable groove; 17. a movable block; 18. a ball groove; 19. the ball, the part is the general standard component or the part that the technicians in this field know, its structure and principle all can be known through the technical manual or through the routine experimental method for this technician, in operation, can realize the fixed mounting work that the apparatus locates on detecting the bench through the mounting bolt cooperates with mounting hole 12 at first, can place the bearing in the annular frame 2 at this moment, and locate in each group of grip blocks 4 inboard, rotate the adjustable ring 8 through the handle 9 at this moment, the adjustable ring 8 will be located and rotated on the movable seat 7 at this moment, the bolt 3 will be located and rotated in the screw hole 11, the bolt 3 will be located and moved up and down in the screw hole 11 and perforation 14 at this moment, can drive the up and down movement of the grip block 4 through the up and down movement of the bolt 3 at this moment, can realize the clamping support work to the bearing, and the difference of the displacement of the threaded spindle 3 can realize, the flexibility improves greatly, and the centre gripping stability is high, and easy operation is convenient, and screw rod 3 is located when reciprocating in perforation 14, thereby it realizes the spacing to screw rod 3 to be located the removal in spout 15 through slider 13, it is rotatory to drive screw rod 3 to appear when avoiding adjustable ring 8 to rotate, ensure that screw rod 3 reciprocates under the condition of rotation not, it is rotatory to avoid grip block 4 to appear, thereby it reduces the frictional force when movable block 17 is located the 16 internal rotations of movable groove to roll through ball 19 to be located ball groove 18, it is more laborsaving convenient to make the rotation of its adjustable ring 8, and increase frictional force when can make grip block 4 centre gripping bearing through rubber pad 5, make its centre gripping more firm, and reduce the clearance when the centre gripping, ensure that the centre gripping is stable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel support for measuring shaft vibration of a steam turbine is characterized by comprising a base (1) and an annular frame (2);

the top of the base (1) is fixedly provided with an annular frame (2), four corners of the annular frame (2) are provided with through holes (14), bolts (3) are inserted into the through holes (14), and clamping blocks (4) are arranged at the bottom ends of the bolts (3) and positioned in the annular frame (2);

the support (6) is fixedly installed at four corners of the annular frame (2) and located on two sides of the through hole (14), the movable seat (7) is installed at the top of the support (6), a movable groove (16) is formed in the inner ring of the movable seat (7), a movable block (17) is movably installed in the movable groove (16), an adjusting ring (8) is installed at the top of the movable block (17), a screw hole (11) is formed in the adjusting ring (8), and the bolt (3) penetrates through the screw hole (11) in a rotating mode;

the bolt is characterized in that sliding grooves (15) are formed in two sides of the bolt (3), sliding blocks (13) are integrally formed in two sides of the inner portion of the through hole (14), and the sliding blocks (13) are arranged in the sliding grooves (15).

2. The novel turbine shaft vibration measurement stand of claim 1, wherein: ball grooves (18) are formed in the bottom of the movable block (17) and the top of the movable groove (16), and balls (19) are movably mounted in the ball grooves (18).

3. The novel turbine shaft vibration measurement stand of claim 1, wherein: handles (9) are arranged at four corners of the adjusting ring (8).

4. The novel turbine shaft vibration measurement stand of claim 1, wherein: and a rubber pad (5) is stuck at the bottom end of the clamping block (4).

5. The novel turbine shaft vibration measurement stand of claim 1, wherein: the base (1) both sides welding have mount pad (10), seted up mounting hole (12) in mount pad (10).