CN216097433U

CN216097433U - Steel wire centering tool for mounting steam turbine

Info

Publication number: CN216097433U
Application number: CN202122190234.5U
Authority: CN
Inventors: 王横伟; 张鹏; 王鹏; 徐圭止; 左鹏鹏
Original assignee: Northeast No2 Electric Power Engineering Corp Of Energy China
Current assignee: Northeast No2 Electric Power Engineering Corp Of Energy China
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-03-22
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a tool for centering a mounting pull steel wire of a steam turbine, relates to the technical field of maintenance equipment in the mechanical industry, and particularly relates to a device for accurately centering each sleeve in a cylinder. The middle part of the pressure plate is provided with a vertical through hole; the pressing plate is arranged at the upper front part of the main body through a bolt; the upper part of the sliding block is provided with a vertical adjusting thread, and the upper part of the sliding block passes through the pressing plate and is matched with the nut A to be hung on the pressing plate through the vertical adjusting thread; the dovetail slide block at the rear part of the slide block is arranged in the slide way of the main body, and the adjusting nut A can drive the slide block to move up and down along the slide way; the lower part of the sliding block is transversely provided with a threaded hole, and the transverse moving structure is arranged on the sliding block through the threaded hole and can transversely move along the threaded hole; a locking bolt is arranged between the sliding block and the main body. The technical scheme of the utility model solves the problems that the existing steel wire drawing centering method in the prior art is rough in equipment, high in adjustment difficulty, time-consuming and labor-consuming in readjustment due to change in the measurement process and the like.

Description

Steel wire centering tool for mounting steam turbine

Technical Field

The utility model discloses a tool for centering a mounting pull steel wire of a steam turbine, relates to the technical field of maintenance equipment in the mechanical industry, and particularly relates to a device for accurately centering each sleeve in a cylinder.

Background

At present, in the installation and maintenance process of a steam turbine, the alignment of a partition plate and a component sleeve in a cylinder is a very important step, and the alignment method used in the installation process of the steam turbine mainly comprises the following steps: a dummy axis centering method, a laser centering method, a drawn steel wire centering method and the like,

the daily maintenance of the dummy shaft is also difficult, the dummy shaft can be bent if the user does not pay attention to the dummy shaft, the manufacturing cost of the dummy shaft is high, different types of units need to manufacture different dummy shafts, and the manufacturing cost is high. The laser centering method has higher equipment cost and is greatly influenced by the environment in use. Compared with the two methods, the method for finding the center of the steel wire has the advantages of low cost, simple and convenient use, small influence of environmental factors and the like. Therefore, the method for centering the middle-pulling steel wire during installation and maintenance is still more common.

Scientific progress and improvement of mechanization level make people have greater demands on convenience and accuracy of tool use. The steel wire centering method has no corresponding practical special steel wire pulling tool, needs on-site manufacture, is rough in the past tool manufacture, large in adjusting difficulty, long in check time and the like, and brings great inconvenience to actual operation, and after the steel wire is adjusted, the steel wire is easy to change in the measuring process.

Aiming at the problems in the prior art, a novel turbine installation steel wire drawing centering tool is researched and designed, so that the problem in the prior art is very necessary to be solved.

Disclosure of Invention

According to the technical problems that the existing steel wire drawing centering method provided by the prior art is rough in equipment, high in adjusting difficulty, time-consuming and labor-consuming in secondary adjustment due to change in the measuring process and the like, the steel wire drawing centering tool for installing the steam turbine is provided. The utility model mainly utilizes an upper set of moving structure, a lower set of moving structure, a left set of moving structure and a right set of moving structure to adjust and center the steel wire rope, and carries out positioning and locking through the locking bolt and the locking nut, thereby realizing the centering work of the steel wire rope, which is quick, simple, convenient, time-saving and labor-saving.

The technical means adopted by the utility model are as follows:

a turbine installation draws steel wire centering instrument includes: the device comprises a main body, a sliding block, a pressing plate, a nut A, a bolt and a transverse moving structure;

furthermore, a vertical through hole is formed in the middle of the pressing plate; the pressure plate is arranged at the upper front position of the main body through a bolt M6 mm;

furthermore, a fine-pitch vertical adjusting thread with the diameter of M10x1.25mm is processed at the upper part of the sliding block, and the upper part of the sliding block passes through the pressing plate and is matched with the nut A through the vertical adjusting thread to be hung on the pressing plate; the moving speed is reduced during adjustment, the stability is improved, the steel wire can move according to the set direction of adjustment and the set numerical value during the adjustment process, and the accuracy reaches 0.02 mm.

Furthermore, the dovetail-shaped sliding block at the rear part of the sliding block is arranged in a slide way of the main body, the fit clearance is less than 0 and 03mm, and the adjusting nut A can drive the sliding block to move up and down along the slide way; the change is minimum when making the steel wire adjust from top to bottom, and stability is good when the slider moves on the slide, has improved the precision of adjustment greatly, shortens the adjustment time.

Furthermore, a threaded hole is transversely processed at the lower part of the sliding block, and the transverse moving structure is arranged on the sliding block through the threaded hole;

further, a locking bolt is arranged between the sliding block and the main body.

Further, the transverse moving structure comprises a gasket, an insulating wheel, a locking nut, a transverse moving bolt and a nut B;

further, the transverse bolt is screwed with the locking nut and then is screwed into the threaded hole of the sliding block;

further, the gasket and the insulating wheel are respectively arranged at the other end of the transverse moving bolt through the nut B;

furthermore, the transverse moving bolt can be rotated to drive the insulating wheel to move transversely, and the insulating wheel can be locked and positioned through the locking nut after moving in place.

Furthermore, two sides of the insulating wheel are respectively provided with a gasket, and the gaskets and the insulating wheel are fixed into a whole.

Furthermore, the tolerance fit between the inner diameters of the insulating wheel and the gasket and the corresponding shaft of the traverse bolt is less than 0.03mm, and the thread of the traverse bolt is designed to be a fine thread with the diameter of M16x1.5mm, so that the traverse bolt is stable when the steel wire is adjusted in a rotating mode.

Furthermore, when the steel wire locking device is used, two steel wires are combined, weights are hung on two sides of the steel wire, the steel wire penetrates through the insulating wheel, the M10 nut is adjusted to adjust the steel wire to move up and down, the M16 bolt is adjusted to adjust the steel wire to move left and right, and the steel wire is adjusted and then is locked with the locking bolt and the locking nut respectively to ensure stability.

Compared with the prior art, the utility model has the following advantages:

1. according to the tool for installing and centering the steel wire for the steam turbine, the sliding block and the body are matched through the trapezoidal slide way, the matching tolerance size of the tool is smaller than 0.03mm, so that the change of the steel wire during up-and-down adjustment is extremely small, the stability of the sliding block during moving on the slide way is good, the adjustment precision is greatly improved, and the adjustment time is shortened;

2. according to the steam turbine installation steel wire centering tool provided by the utility model, the threads processed on the sliding block are fine threads with the thickness of M10x1.25mm, the moving speed is reduced during adjustment, the stability is improved, the steel wire can move according to the set value in the adjustment direction during adjustment, and the accuracy reaches 0.02 mm;

3. according to the tool for installing and drawing the steel wire centering of the steam turbine, in the steel wire adjusting assembly, the tolerance fit between the inner diameters of the insulating wheel and the gasket and the corresponding shaft of the traverse bolt is less than 0.03mm, and the thread of the traverse bolt is designed to be M16x1.5mm fine-tooth thread, so that the traverse bolt is stable when the steel wire is adjusted in a rotating mode;

4. according to the tool for installing and drawing the steel wire to find the center of the steam turbine, the sliding block moves up and down on the main body, the transverse bolt moves left and right on the sliding block, and the steel wire is adjusted without mutual interference when adjusted up and down and left and right, so that the steel wire adjusting time can be shortened, and the working efficiency is improved;

5. according to the tool for centering the installation drawing steel wire of the steam turbine, the insulating wheel is installed on the transverse moving bolt, the steel wire penetrates into the insulating wheel, the insulating effect can be directly achieved, external insulating equipment is reduced, and the tool is simple to install;

6. according to the tool for centering the steel wire during installation of the steam turbine, the locking bolt is arranged on the middle upper portion of the sliding block, the locking nut is arranged between the transverse moving bolt and the sliding block, the locking bolt and the locking nut are respectively locked after the steel wire is adjusted, the first step can ensure that the steel wire does not change during measurement of the center of the partition plate, the second step can ensure that the steel wire is taken down after the center of the partition plate is adjusted for the first time, the steel wire does not change greatly during installation of the steel wire for the second time, and the time for correcting the steel wire from the new state is shortened for the center adjustment of the partition plate in the second and third stages.

In conclusion, the technical scheme of the utility model solves the problems that the existing steel wire drawing centering method in the prior art is rough in equipment, high in adjustment difficulty, time-consuming and labor-consuming in readjustment due to change in the measurement process and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the lateral shifting mechanism of the present invention;

FIG. 4 is a schematic view of the present invention in use.

In the figure: 1. the earphone comprises a main body 2, a sliding block 3, a pressing plate 4, a gasket 5, an insulating wheel 6, a locking nut 7, a transverse moving bolt 8, a nut A9, a locking bolt 10, a bolt 11, a nut B12, a battery 13, an earphone 14 and a steel wire rope.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1-3: the centering tool of the present invention comprises: the device comprises a main body 1, a sliding block 2, a pressure plate 3, a gasket 4, an insulating wheel 5, a locking nut 6, a transverse bolt 7, a nut A8, a locking bolt 9, a bolt 10 and a nut B11; four phi 10 holes are formed in the main body 1 and fastened on site channel steel, the channel steel is fixed on a junction surface of a turbine bearing box, a dovetail groove slideway is machined in the center of the main body 1 and penetrates through the main body from top to bottom, and the length of the slideway is greater than the length of the junction surface of the slideway and the channel steel by 20mm so as to ensure the adjustment allowance of steel wires; a dovetail groove is processed on the sliding block 2, a trapezoidal slide way is formed by the dovetail groove and the dovetail groove of the main body 1, the trapezoidal tolerance fit of the slide way is smaller than 0.03mm, fine threads with the thickness of M10x1.25mm are processed on the top of the sliding block 2, meanwhile, fine threads with the thickness of M16x1.5 are processed, threaded holes are used for installing the M16x1.5 transverse bolt 7, M8 threaded holes are processed on the middle upper portion, and a locking bolt 9 is installed; two phi 8 holes are processed on the pressing plate 3, two M6 bolts 10 are fastened on the main body 1, a phi 12 hole is processed in the middle, the sliding block 2 penetrates through the trapezoidal slideway, the M10x1.25 thread penetrates out of the phi 12mm hole, the M10x1.25mm nut A8 is screwed on, and the sliding block is hung on the pressing plate; and (3) tightening M10x1 and a 25mm nut A8 to realize the up-and-down adjustment of the steel wire.

The steel wire adjusting assembly shown in fig. 1-3 is composed of a gasket 4, an insulating wheel 5, a lock nut 6, a traverse bolt 7, a nut A8 and a nut B11. The transverse bolt 7 is used for processing fine thread with the diameter of M16x1.5mm, the front part is used for processing phi 12 shaft and M12 thread, and the tolerance size matching between the gasket 4 and the insulating wheel 5 and the shaft with the diameter of 12mm is less than 0 and 02 mm; screwing a locking nut 6 with the diameter of M16x1.5mm onto a traverse bolt 7, screwing the locking nut into a sliding block 2 from the right side, respectively placing a gasket 4 and an insulator 5, placing an insulating wheel 5 between the two gaskets 4, and screwing the insulating wheel with a nut B11; and the M16x1.5mm transverse bolt 7 is rotated left and right to realize left and right adjustment of the steel wire.

In the process of centering the drawn steel wire, two tools are needed, the steel wire is hung at two ends of the tool through insulating wheels, and weights are arranged at two ends to tension the steel wire. When the steel wire is adjusted, the steel wire is adjusted to move up and down through the adjusting nut A8, the steel wire is adjusted to move left and right through the adjusting transverse bolt 7, after the adjustment is completed, the steel wire is locked and fixed up and down through the locking bolt 9, and the steel wire is locked and fixed up and down through the locking nut 6. One end of a positive wire and a negative wire of the earphone is connected to the steel wire, the other end of the positive wire and the negative wire of the earphone is connected to the positive electrode of the battery, the negative electrode of the battery is connected to the cylinder body, the iron inside micrometer is used for measuring the upper part, the lower part, the left part and the right part of the hollow nest of the partition board, the short circuit of the positive electrode and the negative electrode of the earphone can make a sound, the data of the micrometer is read, and therefore the purpose of measuring the central data of the partition board and the part sleeve is achieved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a steam turbine installation draws steel wire centering instrument which characterized in that, steam turbine installation draw steel wire centering instrument include: the device comprises a main body (1), a sliding block (2), a pressing plate (3), a nut A (8), a bolt (10) and a transverse moving structure;

the middle part of the pressing plate (3) is provided with a vertical through hole; the pressing plate (3) is arranged at the upper front part of the main body (1) through a bolt (10);

the upper part of the sliding block (2) is provided with a vertical adjusting thread, and the upper part of the sliding block (2) is matched with a nut A (8) through the vertical adjusting thread and is hung on the pressing plate (3) after penetrating through the pressing plate (3);

the dovetail-shaped sliding block at the rear part of the sliding block (2) is arranged in the slideway of the main body (1), and the adjusting nut A (8) can drive the sliding block (2) to move up and down along the slideway;

a threaded hole is transversely processed at the lower part of the sliding block (2), and a transverse moving structure is arranged on the sliding block (2) through the threaded hole and can transversely move along the threaded hole;

and a locking bolt (9) is arranged between the sliding block (2) and the main body (1).

2. The turbine installation stay wire centering tool of claim 1, wherein said lateral shifting structure comprises: the device comprises a gasket (4), an insulating wheel (5), a locking nut (6), a transverse moving bolt (7) and a nut B (11);

the transverse bolt (7) is screwed with the locking nut (6) and then is screwed into the threaded hole of the sliding block (2);

the nut B (11) is used for separately assembling the gasket (4) and the insulating wheel (5) on the shaft part at the other end of the transverse bolt (7);

the transverse bolt (7) can be rotated to drive the insulating wheel (5) to move transversely, and the insulating wheel can be locked and positioned through the locking nut (6) after moving in place.

3. The turbine installation stay wire centering tool according to claim 2, wherein a gasket (4) is disposed on each side of the insulating wheel (5), and the gasket (4) and the insulating wheel (5) are fixed together.