CN219095037U - Special tool for additionally installing balance weight on steam turbine - Google Patents
Special tool for additionally installing balance weight on steam turbine Download PDFInfo
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- CN219095037U CN219095037U CN202222053339.0U CN202222053339U CN219095037U CN 219095037 U CN219095037 U CN 219095037U CN 202222053339 U CN202222053339 U CN 202222053339U CN 219095037 U CN219095037 U CN 219095037U
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Abstract
The embodiment of the application discloses specialized tool of steam turbine installs balancing piece additional, not only can shorten the time of work greatly, and can guarantee that the balancing piece fastens in place, ensures that the balancing piece can not drop during the steam turbine operation. The application comprises the following steps: a first special wrench, a second special wrench and a third special wrench; the first special spanner is used for placing the balance weight into a balance hole of a medium-pressure rotor of the steam turbine; the second special spanner is used for fastening the balance weight arranged on the balance hole in place; the third special spanner is used for firmly punching the periphery of the balance block which is fastened in place.
Description
Technical Field
The embodiment of the application relates to the field of steam turbine rotors, in particular to a special tool for additionally installing a balance weight in a steam turbine.
Background
After the steam turbine is overhauled, high-speed dynamic balance is needed on site so as to eliminate the exceeding of shafting vibration caused by mass unbalance and other reasons.
During starting, the balance weight is required to be added to the middle pressure rotor of the steam turbine due to the fact that the bearing of the pressure rotor vibrates greatly. In the prior art, the balance weight is additionally arranged on the medium-pressure rotor, the balance weight can be additionally arranged after the balance weight nut is additionally arranged at the shaft seal of the medium-pressure cylinder is removed, the position of the balance weight nut is extremely narrow and the environment temperature is high, the balance weight is additionally arranged by adopting a conventional tool, so that the time consumption is long, and whether the balance weight is fastened in place cannot be ensured.
Disclosure of Invention
The application provides a specialized tool of steam turbine installs balancing piece additional, not only can shorten the time of work greatly, and can guarantee that the balancing piece fastens in place, ensures that the balancing piece can not drop during the steam turbine operation.
The embodiment of the application provides a specialized tool of steam turbine additional installs balancing piece, includes: a first special wrench, a second special wrench and a third special wrench;
the first special spanner is used for placing the balance weight into a balance hole of a medium-pressure rotor of the steam turbine;
the second special spanner is used for fastening the balance weight arranged on the balance hole in place;
the third special spanner is used for firmly punching the periphery of the balance block which is fastened in place.
Optionally, the first special spanner is T type structure, first special spanner includes first spanner and first handle, first spanner cover is in the first handle, through first spanner with the balancing piece is connected fixedly, rethread first handle will the balancing piece is fixed in the balancing hole.
Optionally, the outer cylindrical surface of the first wrench head is provided with threads, and the threads are used for being in threaded connection with the balance weight.
Optionally, the first handle includes a first handle and a first connection portion, and the first connection portion is used for connecting the first handle and the first wrench head.
Optionally, the second special spanner is T type structure, the second special spanner includes second spanner and second handle, the second spanner be used for with the balancing piece is connected, the second handle be used for with the balancing piece is screwed up in the balancing hole.
Optionally, the front end of the second spanner is a flat shovel, and the balance weight is screwed into the balance weight through the flat shovel.
Optionally, the second handle includes second handle and second connecting portion, second connecting portion is used for connecting the second handle with the second spanner, the second connecting portion is the cylinder structure, the cylinder diameter of second connecting portion is greater than the cylinder diameter of first connecting portion.
Optionally, the third special spanner comprises a third spanner head, one end of the third spanner head is in a sharp angle, and the cross section of the wall body of the third spanner head is in a polygonal shape.
Optionally, the third special spanner further comprises a vertical rod, the vertical rod is detachably connected with the third spanner head, and the length of the vertical rod is adjustable.
Optionally, the first special spanner is made of stainless steel, and the second special spanner and the third special spanner are made of carbon steel.
The above technical solution can be seen that the embodiment of the application has the following advantages:
in this scheme, design a specialized tool of steam turbine installs balancing piece additional, first special spanner, second special spanner and third special spanner, wherein, first special spanner is used for putting the balancing piece into the balancing hole of steam turbine middling pressure rotor, and the second special spanner is used for fixing in place the balancing piece that sets up on the balancing hole, and third special spanner is used for punching firmly around the balancing piece that has fastened in place. The tool is used for additionally installing the balance weight on the turbine rotor, so that the working time can be greatly shortened, the balance weight can be ensured to be fastened in place, and the balance weight can not fall off during the operation of the turbine.
Drawings
FIG. 1 is a schematic structural diagram of a special tool for installing a counterweight in a steam turbine according to an embodiment of the present application;
fig. 2 is a detailed view of the weight attachment in the embodiment of the present application.
Detailed Description
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used to illustrate the relative positional relationships between the components or portions, and do not particularly limit the specific mounting orientations of the components or portions.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the structures, proportions, sizes, etc. shown in the drawings herein are shown and described in detail for purposes of illustration only, and are not intended to limit the scope of the utility model, which is defined in the claims, unless otherwise indicated, and which are otherwise used by those skilled in the art to which the utility model pertains.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The embodiment of the application provides a specialized tool of steam turbine installs balancing piece additional, not only can shorten the time of work greatly, and can guarantee that the balancing piece fastens in place, ensures that the balancing piece can not drop during the steam turbine operation.
Referring to fig. 1, an embodiment of the present application provides a special tool for installing a balancing weight in a steam turbine, including:
a first special spanner 1, a second special spanner 2 and a third special spanner 3;
the first special spanner 1 is used for placing the balance weight 4 into a balance hole 5 of a medium-pressure rotor of the steam turbine;
the second special spanner 2 is used for fastening the balance weight 4 arranged on the balance hole 5 in place;
the third special spanner 3 is used for punching the periphery of the balance weight 4 which is fastened in place.
In this embodiment, three kinds of specialized tools of design mutually support and install the balancing piece in the middling pressure rotor, be first special spanner 1 respectively, second special spanner 2 and third special spanner 3, specifically, firstly fix balancing piece 4 on first special spanner 1 through first special spanner 1, then demolish middling pressure jar bearing seal department and install the balancing piece nut additional after, twist the balancing piece 4 that fixes on first special spanner 1 on middling pressure rotor balancing hole 5, withdraw from first special spanner 1, the rethread uses second special spanner 2 to fasten balancing piece 4 in place in balancing hole 5, withdraw from second special spanner 2 after balancing piece 4 is fastened in place, use third special spanner 3 to dash balancing piece 4 around, ensure that balancing piece 4 can not drop during the steam turbine operation.
It should be noted that the length relationships of the three special tools are: the first special spanner 1 > the second special spanner 2 > the third special spanner 3, as shown in fig. 1, a tool of one of which length is provided, the first special spanner 1 having a length of 943cm, the second special spanner 2 having a length of 940cm, and the third special spanner 3 having a length of 750cm.
In this embodiment, design a specialized tool of steam turbine installs balancing piece additional, first special spanner 1, second special spanner 2 and third special spanner 3, wherein, first special spanner 1 is used for putting balancing piece 4 into steam turbine middling pressure rotor's balancing hole 5, and second special spanner 2 is used for fastening balancing piece 4 that sets up on balancing hole 5 in place, and third special spanner 3 is used for punching firmly around the balancing piece 4 that has fastened in place. The balance weight 4 is additionally arranged on the turbine rotor through the tool, so that the working time can be greatly shortened, the balance weight 4 can be ensured to be fastened in place, and the balance weight 4 is ensured not to fall off during the operation of the turbine.
Optionally, the first special spanner 1 is of a T-shaped structure, the first special spanner 1 comprises a first spanner head 11 and a first handle 12, the first spanner head 11 is sleeved in the first handle 12, the first spanner head 12 is connected and fixed with the balance weight 4, and the balance weight 4 is fixed in the balance hole 5 through the first handle 12.
Optionally, the outer cylindrical surface of the first wrench 11 is provided with threads 111, the threads 111 being for threaded connection with the weight 4.
Alternatively, the first handle 12 includes a first grip 121 and a first connection portion 122, and the first connection portion 122 is used to connect the first grip 121 and the first wrench 11.
It should be noted that, in the embodiment of the present application, the first special wrench 1 is of a T-shaped structure, and includes a first wrench head 11 and a first handle 12, wherein the first wrench head 11 is sleeved in the first handle 12, a thread 111 is disposed on an outer cylindrical surface of the first wrench head 11, and the thread 111 and a thread on an inner wall of the balance weight 4 are mutually matched to realize threaded connection so as to fix the balance weight 4 on the first special wrench 1; the first handle 12 is divided into a first handle 121 and a first connecting portion 122, wherein the first connecting portion 122 is used for connecting the first handle 121 and the first wrench 11, the outer cylindrical surface of the first connecting portion 122 is smooth, the first handle 121 can be convenient for a worker to rotate the first handle 121, and the first handle 121 drives the first wrench 11 to be in threaded connection with the balance weight 4 through the first connecting portion 122.
As shown in FIG. 1, a feasible length-width-size relationship is provided, so that time and labor saving effects can be well realized for operators.
Optionally, the second special spanner 2 is of a T-shaped structure, the second special spanner 2 comprises a second spanner head 21 and a second handle 22, the second spanner head 21 is used for being connected with the balance weight 4, and the second handle 22 is used for screwing the balance weight 4 into the balance hole 5.
Optionally, the front end of the second spanner 21 is a flat shovel, and the balance weight 4 is screwed into the balance weight 4 through the flat shovel.
Optionally, the second handle 22 includes a second handle 221 and a second connecting portion 222, where the second connecting portion 222 is used to connect the second handle 221 and the second wrench 21, and the second connecting portion 222 has a cylindrical structure, and a cylinder diameter of the second connecting portion 222 is larger than a cylinder diameter of the first connecting portion 122.
It should be noted that, in the embodiment of the present application, the second special wrench 2 is also of a T-shaped structure, and includes a second wrench head 21 and a second handle 22, wherein the front end of the second wrench head 21 is a flat shovel, and the second wrench head 21 screws the balance weight 4 into the balance weight 4 through the flat shovel; and the second handle 22 is divided into two parts of a second handle 221 and a second connection part 222, wherein the second connection part 222 is used for connecting the second handle 221 and the second spanner 21, and the cylinder diameter of the second connection part 222 is larger than that of the first connection part 122; the second handle 221 can facilitate the operator to rotate the second handle 221, the second handle 221 drives the second wrench 21 through the second connecting portion 222, and the flat spade of the second wrench can screw the balance weight 4 in the balance hole 5.
Optionally, the third special wrench 3 includes a third wrench head 31, one end of the third wrench head 31 is pointed, and a wall body cross section of the third wrench head 31 is polygonal.
Optionally, the third special wrench 3 further includes a vertical rod 32, the vertical rod 32 is detachably connected with the third wrench 31, and the length of the vertical rod 32 is adjustable.
It should be noted that, in this embodiment of the application, the shape structure of the third special spanner 3 is different from the first special spanner 1 and the second special spanner 2, the third special spanner 3 is not required to be in threaded connection with the balance weight 4, so no handle is designed, the third special spanner 3 is designed with two parts of the third spanner head 31 and the vertical rod 32, one end of the third spanner head 31 is a sharp corner, and can be used for firmly punching the periphery of the balance weight 4, and the length of the vertical rod 32 can be adjusted according to the actual use condition.
Optionally, the first special spanner 1 is made of stainless steel, and the second special spanner 2 and the third special spanner 3 are made of carbon steel.
It should be noted that in the embodiment of the present application, a feasible material is provided, for example, the third special wrench 1 is made of 304 stainless steel, which is a common stainless steel material with a density of 7.93g/cm3 and a high temperature resistance of 800 ℃; the second special spanner 2 and the third special spanner 3 are made of low carbon steel with carbon content of 0.2%, and are also called mild steel because of low strength and low hardness, and are mostly used for mechanical parts requiring wear resistance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A special tool for installing a balance weight in a steam turbine, comprising: a first special wrench, a second special wrench and a third special wrench;
the first special spanner is used for placing the balance weight into a balance hole of a medium-pressure rotor of the steam turbine;
the second special spanner is used for fastening the balance weight arranged on the balance hole in place;
the third special spanner is used for firmly punching the periphery of the balance block which is fastened in place.
2. The special tool according to claim 1, wherein the first special wrench is of a T-shaped structure, the first special wrench comprises a first wrench head and a first handle, the first wrench head is sleeved in the first handle, the first wrench head is connected and fixed with the balance block, and the balance block is fixed in the balance hole through the first handle.
3. The special tool according to claim 2, wherein the outer cylindrical surface of the first wrench is provided with threads for threaded connection with the weight.
4. The special tool of claim 2, wherein the first handle comprises a first handle and a first connection portion for connecting the first handle and the first wrench.
5. The special tool of claim 4, wherein the second special wrench is of a T-shaped configuration, the second special wrench comprising a second wrench head and a second handle, the second wrench head being configured to connect with the weight, the second handle being configured to tighten the weight within the balance hole.
6. The special tool of claim 5, wherein the second wrench head is a flat spade through which the weight is screwed into the weight.
7. The special tool according to claim 5, wherein the second handle comprises a second handle and a second connecting portion for connecting the second handle and the second wrench, the second connecting portion having a cylindrical structure, and a cylinder diameter of the second connecting portion being larger than a cylinder diameter of the first connecting portion.
8. The special tool according to any one of claims 1 to 7, wherein the third special wrench comprises a third wrench head, one end of the third wrench head is pointed, and a wall body of the third wrench head is polygonal in cross section.
9. The special tool of claim 8, wherein the third special wrench further comprises a vertical rod detachably connected to the third wrench, and wherein the vertical rod is adjustable in length.
10. The special tool according to any one of claims 1 to 7, wherein the first special wrench is made of stainless steel, and the second special wrench and the third special wrench are made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222053339.0U CN219095037U (en) | 2022-08-02 | 2022-08-02 | Special tool for additionally installing balance weight on steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222053339.0U CN219095037U (en) | 2022-08-02 | 2022-08-02 | Special tool for additionally installing balance weight on steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219095037U true CN219095037U (en) | 2023-05-30 |
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ID=86463127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222053339.0U Active CN219095037U (en) | 2022-08-02 | 2022-08-02 | Special tool for additionally installing balance weight on steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219095037U (en) |
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2022
- 2022-08-02 CN CN202222053339.0U patent/CN219095037U/en active Active
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