CN216138842U - Auxiliary device is dismantled to steam turbine cylinder nut - Google Patents
Auxiliary device is dismantled to steam turbine cylinder nut Download PDFInfo
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- CN216138842U CN216138842U CN202122057430.5U CN202122057430U CN216138842U CN 216138842 U CN216138842 U CN 216138842U CN 202122057430 U CN202122057430 U CN 202122057430U CN 216138842 U CN216138842 U CN 216138842U
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- cylinder nut
- clip chain
- steam turbine
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Abstract
The utility model discloses a steam turbine cylinder nut dismounting auxiliary device which comprises a lifting framework, a lifting mechanism and a lifting mechanism, wherein the lifting framework comprises a tray, a hook arranged at the top of the tray, a clip chain arranged on the surface of the hook, a rotatable connecting piece arranged at the upper end of the clip chain, and an operating handle arranged at the upper end of an inner cavity of the clip chain; and the dismounting mechanism comprises a lower cylinder nut and a lower half of the air cylinder arranged at the top of the lower cylinder nut. The auxiliary device for disassembling the cylinder nut of the steam turbine has the advantages that through the matching of the lifting framework and the disassembling mechanism, a clip chain in the auxiliary device for disassembling the cylinder nut of the steam turbine penetrates through screw rods and screw rod center holes on the surfaces of lower cylinder nuts, then the lower end of the clip chain is connected with a hook, an operating handle is inserted into the upper end of the clip chain, then one person can carry the operating handle by hand, one person can disassemble the nut at the lower end of the cylinder below, and further the problem that the nut needs to be disassembled through a scaffold due to the limitation of places is solved.
Description
Technical Field
The utility model relates to the technical field of steam turbine cylinders, in particular to an auxiliary device for disassembling a screw cap of a steam turbine cylinder.
Background
A steam turbine cylinder body of a power plant is divided into an upper part and a lower part which are connected through a cylinder bolt, one cylinder body is provided with more than one connecting bolt, the weight of a single nut reaches about twenty kilograms, the cylinder is buckled and uncovered two to three times in the cylinder uncovering maintenance process, the lower cylinder nut needs to be disassembled in the cylinder uncovering work, then a screw and an upper cylinder nut are integrally lifted out by a crane, the disassembling workload of the lower cylinder nut is huge, field maintenance personnel generally adopt two-person resultant force to disassemble the lower cylinder of the steam turbine at present, one person rotates the nut, one person holds the nut with hands below the lower cylinder to prevent the nut from being unscrewed from the screw and instantly falling off, due to the limitation of field conditions, pipelines and heat-insulating cotton are generally arranged at the lower cylinder of the steam turbine and are positioned below a steam turbine running layer, a scaffold needs to be arranged for operation, the process brings inconvenience to the maintenance personnel, and increases the danger coefficient of the working process, therefore, a device is needed to solve the problems of inconvenient operation and high danger coefficient in the process of disassembling the cylinder nut of the existing steam turbine.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the utility model.
The present invention has been made in view of the above and/or other problems with existing steam turbine cylinder nut removal aids.
Therefore, the utility model aims to solve the problems that due to the limitation of field conditions, the disassembly workload of the screw cap is huge, a scaffold needs to be built for operation, the process brings inconvenience to maintenance personnel, and the danger coefficient of the working process is increased.
In order to solve the technical problems, the utility model provides the following technical scheme: a steam turbine cylinder nut dismounting auxiliary device comprises a lifting framework, a lifting mechanism and a lifting mechanism, wherein the lifting framework comprises a tray, a hook arranged at the top of the tray, a clip chain arranged on the surface of the hook, a rotatable connecting piece arranged at the upper end of the clip chain, and an operating handle arranged at the upper end of an inner cavity of the clip chain; and the disassembly mechanism comprises a lower cylinder nut, a lower cylinder at the top of the lower cylinder nut, an upper cylinder at the top of the upper cylinder, a screw rod arranged in the lower cylinder and the upper inner cavity of the cylinder, an upper cylinder nut arranged in the upper cylinder at the top of the upper cylinder, and a screw rod center hole arranged in the upper cylinder and the lower cylinder at the top of the lower cylinder nut.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the hook is positioned at the center of the top of the tray and is welded and fixed with the tray.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the top and the bottom of the rotatable connecting piece are both provided with through holes matched with the clip-shaped chain for use.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the clip chain is positioned at one end of the inner cavity of the rotatable connecting piece and is in a convex shape, and the clip chain is movably connected with the inner cavity of the rotatable connecting piece.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the rotatable connecting piece is sleeved on the surface of the operating handle and is movably connected with the operating handle.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the top and the bottom of the screw rod respectively penetrate through the lower half of the cylinder and the upper half of the cylinder.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the lower cylinder nut is positioned at the lower end of the surface of the screw rod and is in threaded connection with the screw rod.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the screw rod center hole is located at the upper end of the surface of the screw rod and is in threaded connection with the screw rod.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the screw central hole is matched with the clip chain for use.
As a preferable aspect of the steam turbine cylinder nut removal assisting device according to the present invention, wherein: the lower end of the clip chain is hooked with the hook and matched with the tray, the rotatable connecting piece and the operating handle for use.
The utility model has the advantages that through the matching of the lifting framework and the dismounting mechanism, the clip chain in the steam turbine cylinder nut dismounting auxiliary device penetrates through the screw central holes on the surfaces of the screw and the lower cylinder nut, then the lower end of the clip chain is connected with the hook, the upper end of the clip chain is inserted into the operating handle, and then one person can carry the operating handle by hand and one person can disassemble the screw cap at the lower end of the cylinder below the operating handle, thereby solving the problem that the screw cap needs to be disassembled through a scaffold due to the limitation of the field, avoiding the falling of the working personnel in the process of high-altitude operation, thereby improving the protection for workers, in addition, the screw cap is arranged at the top of the tray, the tray and the screw cap of the lower cylinder of the cylinder rotate together until the screw cap is screwed off the screw rod, therefore, the cylinder bolt can be detached more safely and conveniently, and great convenience is brought to maintenance personnel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a view showing a structure of a tray, a clip chain and an operating handle of the auxiliary device for removing a nut of a steam turbine cylinder.
Fig. 2 is a sectional view of the lower half of the cylinder, the upper half of the cylinder and the screw of the auxiliary device for disassembling the nut of the steam turbine cylinder.
Fig. 3 is a front view of a screw of the auxiliary device for removing the cylinder nut of the steam turbine.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, for a first embodiment of the present invention, the first embodiment provides an auxiliary device for detaching a steam turbine cylinder nut, the auxiliary device for detaching a steam turbine cylinder nut includes a lifting framework 100, which includes a tray 101, a hook 102 disposed on the top of the tray 101, a clip chain 103 disposed on the surface of the hook 102, a rotatable connector 104 disposed on the upper end of the clip chain 103, and an operating handle 105 disposed on the upper end of the inner cavity of the clip chain 103; and the number of the first and second groups,
the disassembling mechanism 200 comprises a lower cylinder nut 201, a lower cylinder half 202 arranged at the top of the lower cylinder nut 201, an upper cylinder half 203 arranged at the top of the lower cylinder half 202, a screw 204 arranged in the inner cavities of the lower cylinder half 202 and the upper cylinder half 203, an upper cylinder nut 205 arranged at the top of the upper cylinder half 203, and a screw center hole 206 arranged at the top of the upper cylinder nut 205 and the lower cylinder nut 201.
Specifically, the hook 102 is located at the center of the top of the tray 101 and is welded to the tray 101.
Specifically, through holes matched with the clip chain 103 are formed in the top and the bottom of the rotatable connecting part 104, the clip chain 103 in the steam turbine cylinder nut dismounting auxiliary device penetrates through a screw 204 and a screw center hole 206 in the surface of a lower cylinder nut 201 through the matching of the lifting framework 100 and the dismounting mechanism 200, then the lower end of the clip chain 103 is connected with the hook 102, the upper end of the clip chain 103 is inserted into the operating handle 105, so that one person can handle the operating handle, and one person can dismount a cylinder lower end nut below the operating handle, thereby solving the problem that the nut needs to be dismounted through a scaffold due to the limitation of the field, avoiding the falling of workers in the process of high-altitude operation, improving the protection of the workers, and in addition, arranging the nut at the top of the tray 101 to enable the tray 101 and the cylinder lower cylinder nut 201 to rotate together, until the nut is screwed off the screw 204, the disassembly work of the cylinder bolt is safer and more convenient, and great convenience is brought to maintenance personnel.
During the use, at first, penetrate screw rod centre bore 206 with type chain 103 bottom, then be connected type chain 103 bottom and couple 102 back, will control handle 105 and insert type chain 103 top this moment, alone control handle 105 is carried and pull at cylinder first 203 for tray 101 pastes tight lower cylinder nut 201, alone at cylinder first 202 pine lower cylinder nut 201, until lower cylinder nut 201 unscrews screw rod 204, in the whole process, the operating personnel of cylinder first 203 department suitably carry and pull control handle 105, make lower cylinder nut 201 atress all the time, be unlikely to unscrew and drop in the twinkling of an eye.
Example 2
Referring to fig. 1 and 2, a second embodiment of the present invention, which is different from the first embodiment, is:
specifically, one end of the clip chain 103 located in the inner cavity of the rotatable connecting element 104 is convex and movably connected with the inner cavity of the rotatable connecting element 104.
Specifically, the rotatable connecting element 104 is sleeved on the surface of the operating handle 105 and movably connected with the operating handle 105.
Specifically, the top and bottom of the screw 204 extend through the exterior of the lower cylinder half 202 and the upper cylinder half 203, respectively.
Specifically, the lower cylinder nut 201 is located at the lower end of the surface of the screw 204, and is in threaded connection with the screw 204.
When the screw cap is used, after the screw cap is disassembled, firstly, an operator at the upper half 203 of the air cylinder slowly loosens the operating handle 105 and extracts the operating handle, an operator at the lower half 202 of the air cylinder can take out the tray 101, the lower cylinder screw cap 201 and the clip chain 103 together, then the screw 204 and the upper cylinder screw cap 205 are integrally lifted out through a travelling crane, and the whole working process is finished.
Example 3
Referring to fig. 1 to 3, a third embodiment of the present invention is different from the first two embodiments:
specifically, the screw center hole 206 is located at the upper end of the surface of the screw 204 and is in threaded connection with the screw 204.
Specifically, the screw central hole 206 is used in cooperation with the clip chain 103.
Specifically, the lower end of the clip chain 103 is hooked to the hook 102 and used in cooperation with the tray 101, the rotatable link 104 and the operating handle 105.
When in use, the bottom end of the clip chain 103 is firstly inserted into the screw rod central hole 206, then the bottom end of the clip chain 103 is connected with the hook 102, at this time, the operating handle 105 is inserted into the top end of the clip chain 103, one person pulls the operating handle 105 on the upper half 203 of the air cylinder, so that the tray 101 is tightly attached to the lower cylinder nut 201, one person unscrews the lower cylinder nut 201 from the lower cylinder half 202 until the lower cylinder nut 201 is unscrewed from the screw 204, in the whole process, the operator at the upper cylinder half 203 pulls the operating handle 105 with proper force, so that the lower cylinder nut 201 is always stressed and cannot fall off instantly when being rotated away, and after the nut is disassembled, by the operator in the upper cylinder half 203 slowly releasing the operating handle 105 and pulling it out, the operator in the lower cylinder half 202 can take out the pallet 101, the lower cylinder nut 201 and the clip chain 103 together, and then the screw 204 and the upper cylinder nut 205 are integrally lifted out through the crane, and the whole working process is finished.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a steam turbine cylinder nut dismantles auxiliary device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the lifting framework (100) comprises a tray (101), a hook (102) arranged at the top of the tray (101), a clip chain (103) arranged on the surface of the hook (102), a rotatable connecting piece (104) arranged at the upper end of the clip chain (103), and a control handle (105) arranged at the upper end of the inner cavity of the clip chain (103); and the number of the first and second groups,
disassembly body (200), including lower cylinder nut (201), set up in cylinder lower half (202) at lower cylinder nut (201) top, set up in cylinder upper half (203) at cylinder lower half (202) top, set up in cylinder lower half (202) with screw rod (204) of cylinder upper half (203) inner chamber, set up in upper cylinder nut (205) at cylinder upper half (203) top, and set up in upper cylinder nut (205) with screw rod centre bore (206) at lower cylinder nut (201) top.
2. The steam turbine cylinder nut removal aid of claim 1, wherein: the hook (102) is positioned at the center of the top of the tray (101) and is fixedly welded with the tray (101).
3. The turbine cylinder nut removal aid of claim 2, wherein: the top and the bottom of the rotatable connecting piece (104) are provided with through holes matched with the clip-shaped chain (103) for use.
4. The turbine cylinder nut removal aid of claim 3, wherein: one end of the clip chain (103) positioned in the inner cavity of the rotatable connecting piece (104) is convex and is movably connected with the inner cavity of the rotatable connecting piece (104).
5. The steam turbine cylinder nut removal aid of any one of claims 1 to 4, wherein: the rotatable connecting piece (104) is sleeved on the surface of the operating handle (105) and is movably connected with the operating handle (105).
6. The turbine cylinder nut removal aid of claim 5, wherein: the top and the bottom of the screw (204) penetrate to the outside of the lower cylinder half (202) and the upper cylinder half (203), respectively.
7. The steam turbine cylinder nut removal aid of claim 2 or 6, wherein: the lower cylinder nut (201) is located at the lower end of the surface of the screw rod (204) and is in threaded connection with the screw rod (204).
8. The turbine cylinder nut removal aid of claim 7, wherein: the screw central hole (206) is positioned at the upper end of the surface of the screw (204) and is in threaded connection with the screw (204).
9. A turbine cylinder nut removal aid as claimed in any one of claims 3, 6 and 8 wherein: the screw central hole (206) is matched with the clip chain (103) for use.
10. A turbine cylinder nut removal aid as claimed in any one of claims 1 to 3 wherein: the lower end of the clip chain (103) is hooked with the hook (102) and is matched with the tray (101), the rotatable connecting piece (104) and the operating handle (105) for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122057430.5U CN216138842U (en) | 2021-08-30 | 2021-08-30 | Auxiliary device is dismantled to steam turbine cylinder nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122057430.5U CN216138842U (en) | 2021-08-30 | 2021-08-30 | Auxiliary device is dismantled to steam turbine cylinder nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216138842U true CN216138842U (en) | 2022-03-29 |
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ID=80810219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122057430.5U Active CN216138842U (en) | 2021-08-30 | 2021-08-30 | Auxiliary device is dismantled to steam turbine cylinder nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216138842U (en) |
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2021
- 2021-08-30 CN CN202122057430.5U patent/CN216138842U/en active Active
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