CN214352165U - Gas turbine bolt swivel nut installation frock - Google Patents
Gas turbine bolt swivel nut installation frock Download PDFInfo
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- CN214352165U CN214352165U CN202022989685.0U CN202022989685U CN214352165U CN 214352165 U CN214352165 U CN 214352165U CN 202022989685 U CN202022989685 U CN 202022989685U CN 214352165 U CN214352165 U CN 214352165U
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- thread insert
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Abstract
The utility model provides a gas turbine bolt swivel nut installation frock, the frock includes: the bolt thread sleeve mounting rod is used for mounting the bolt thread sleeve into the base material; the bolt fixing piece is arranged between the bolt threaded sleeve and the base material and used for fixing the bolt; and the bolt knocking rod penetrates through the bolt threaded sleeve mounting rod when the bolt threaded sleeve is mounted and is used for knocking the bolt, wherein the bolt fixing piece is of a circular ring-shaped sheet structure. The utility model provides a gas turbine bolt swivel nut installation frock is equipped with bolt swivel nut installation pole, and at the in-process of bolt embedding bolt groove as the guide bar, it is even to have guaranteed that the bolt atress, and the round annular bolt stationary blade has guaranteed that the bolt is indeformable in whole installation.
Description
Technical Field
The disclosure relates to a gas turbine assembly technology, in particular to an installation tool for a gas turbine bolt turnbuckle.
Background
Threaded connection is a simple, reliable connection mode, but directly adopts threaded connection on some low-strength materials (such as aluminum alloy), because material reason itself, its screw thread intensity and life-span often hardly satisfy actual life requirement, after many dismouting, often appear screw thread wearing and tearing scheduling problem. Therefore, it is common practice to use a plug thread insert on these low-strength base materials, and the plug thread insert itself is made of a higher-strength material, and is matched with the corresponding fastener through the internal thread of the plug thread insert.
For gas turbines, high-strength stainless steel or high-temperature alloy is often used as the material of various casings and housings, and although the material has high strength, the parts are high in cost, so that bolt thread sleeves are also commonly used for improving the durability of the parts and preventing the parts from being unusable due to thread abrasion.
The bolt thread insert is simple in structure and mainly comprises an inner thread, an outer thread and a bolt, and the outer thread is correspondingly provided with a bolt groove. The installation of the bolt threaded sleeve comprises the screwing of the bolt threaded sleeve and the embedding of the bolt, and the common method is to manually screw the bolt into a threaded hole in the base material and then knock the bolt into the bolt groove by a hammer. This conventional assembly method has the following problems: (1) the bolt is thin, so that the bolt is easy to deform, bend and even break in the knocking process; (2) during the knocking process, the hammer possibly touches the base material to damage the surface of the base material; (3) when the parent material is stainless steel or high-temperature alloy, the bolt thread sleeve is difficult to screw into the bottom due to high strength of the parent material; (4) the installation of the bolt thread sleeves is generally carried out in batches, and the traditional assembly method has low efficiency and poor economic benefit and can not ensure the assembly quality.
Therefore, in order to solve the problem of installation of the bolt turnbuckle, a convenient and feasible installation tool and an installation method for the bolt turnbuckle of the gas turbine need to be designed, so that the installation quality and the installation efficiency of the bolt turnbuckle are improved.
Disclosure of Invention
In order to solve the problem, the present disclosure provides a gas turbine bolt thread insert installation tool, which ensures smooth screwing of the bolt thread insert when a base material is a common material in a gas turbine such as stainless steel and high-temperature alloy, and simultaneously ensures that the bolt is not deformed or bent in the process of being embedded into the bolt groove. The gas turbine bolt turnbuckle mounting tool is simple in structure and convenient to use, the mounting quality of the bolt turnbuckle can be guaranteed, and the mounting efficiency can be improved.
An object of the present disclosure is to provide a gas turbine bolt swivel nut installation frock, the frock includes: the bolt thread sleeve mounting rod is used for mounting the bolt thread sleeve into the base material; the bolt fixing piece is arranged between the bolt threaded sleeve and the base material and used for fixing the bolt; and the bolt knocking rod penetrates through the bolt threaded sleeve mounting rod when the bolt threaded sleeve is mounted and is used for knocking the bolt, wherein the bolt fixing piece is of a circular ring-shaped sheet structure.
The utility model provides a gas turbine bolt swivel nut installation frock still has such characteristic, bolt swivel nut installation pole with the one end of bolt swivel nut contact is thin rod end, and the other end is thick rod end, thick rod end with thin rod end centre is equipped with the cylindrical changeover portion that length is 1-2 mm.
The utility model provides a gas turbine bolt swivel nut installation frock still has such characteristic, the thin rod is served and is equipped with the external screw thread with the internal thread matched with of bolt swivel nut, the effective length of external screw thread with the effective length of internal thread is the same.
The gas turbine bolt turnbuckle installation tool provided by the disclosure further has the characteristic that the outer diameter of the cylindrical transition section is not larger than the small diameter of the external thread.
The gas turbine bolt swivel nut installation frock that this disclosure provided still has such characteristic, thick rod end is equipped with the through-hole.
The gas turbine bolt swivel nut installation tool further has the characteristic that the tool further comprises a core rod, wherein the core rod is inserted into the through hole and used for assisting the bolt swivel nut to be screwed into the base metal.
The utility model provides a gas turbine bolt swivel nut installation frock still has such characteristic, the thickness of bolt stationary blade is 1/4 of bolt height on the bolt swivel nut, the inboard of bolt stationary blade is equipped with square notch, square notch with bolt width on the bolt swivel nut cooperatees, the quantity of breach with bolt quantity on the bolt swivel nut is the same.
The gas turbine bolt turnbuckle installation tool is further characterized in that the inner diameter of the bolt knocking rod is the same as the outer diameter of the bolt turnbuckle installation rod, and one side of the contact end of the bolt knocking rod and the bolt turnbuckle is a conical end face.
Compared with the prior art, the method has the following beneficial effects:
the utility model provides a gas turbine bolt swivel nut installation frock is equipped with bolt swivel nut installation pole, and at the in-process of bolt embedding bolt groove as the guide bar, it is even to have guaranteed that the bolt atress, and the round annular bolt stationary blade has guaranteed that the bolt is indeformable in whole installation.
The gas turbine bolt turnbuckle mounting tool is simple in structure, convenient to use and easy to manufacture, the mounting quality of the bolt turnbuckle can be guaranteed, the mounting efficiency of the bolt turnbuckle can be improved, and when base metal is made of high-strength materials such as stainless steel and high-temperature alloy, the bolt turnbuckle is guaranteed to be smoothly mounted into the base metal.
Drawings
FIG. 1 is a schematic structural view of a gas turbine plug insert installation tool provided in accordance with the present disclosure;
FIG. 2 is a schematic view of the construction of the bayonet nut mounting bar shown in FIG. 1;
FIG. 3 is a schematic structural view of the latch fixing piece shown in FIG. 1;
FIG. 4 is a schematic view of the latch fixing piece and the latch shown in FIG. 1;
fig. 5 is a schematic view of the structure of the latch striking rod shown in fig. 1.
Wherein, 1: a bolt turnbuckle mounting rod; 11: a through hole; 2: a bolt fixing piece; 3: a bolt knocking rod; 4. a bolt; 5: a bolt turnbuckle; l1, the effective length of the external thread at the thin rod end of the bolt thread sleeve mounting rod; l2: the bolt thread sleeve is provided with the total length of the thin rod end of the rod; l3: the length of the cylindrical transition section; l4: the thickness of the bolt fixing piece; a: the bolt thread insert is provided with the specification of the external thread at the thin rod end of the rod; b: the outer diameter of the cylindrical transition section; c: the outer diameter of the thick rod end of the bolt thread sleeve mounting rod; d, the length of the gap of the bolt fixing piece; e: the width of the gap of the bolt fixing piece; f: the inner diameter of the bolt knocking rod; g: the bolt strikes the pole external diameter.
Detailed Description
The present disclosure is further described below in conjunction with the appended drawings and specific embodiments, the advantages and features of which will become more apparent as the description proceeds. These embodiments are merely exemplary and do not limit the scope of the disclosure in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that such changes and modifications may be made without departing from the spirit and scope of the disclosure.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing and simplifying the description of the present disclosure, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present disclosure.
In addition, in the description of the invention of the present disclosure, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-5, a gas turbine bolt turnbuckle mounting tool is provided, which comprises a bolt turnbuckle mounting rod 1, a bolt fixing piece 2 and a bolt knocking rod 3. The bolt thread sleeve mounting rod 1 is used for mounting the bolt thread sleeve 5 into the parent metal; the bolt fixing piece 2 is arranged between the bolt threaded sleeve 5 and the base material and is used for fixing the bolt 4; the bolt knocking rod 3 penetrates through the bolt threaded sleeve mounting rod 1 when the bolt threaded sleeve 5 is mounted and is used for knocking the bolt 4, wherein the bolt fixing piece 2 is of a circular ring-shaped sheet structure.
The working process is as follows: when the bolt thread insert 5 is installed, the bolt thread insert 5 is firstly screwed on the thin rod end of the bolt thread insert installation rod 1, and then the bolt thread insert 4 is screwed into the parent metal through the bolt thread insert installation rod 1. Then, 3 latch fixing pieces 2 are installed, and the latch fixing pieces 2 pass through the latches 4. The bolt knocking rod 3 penetrates through the bolt threaded sleeve mounting rod 1, one side of the conical end face of the bolt knocking rod 3 is in contact with the bolt 4, and the bolt 4 is gradually knocked into the bolt groove by knocking the other side of the bolt knocking rod 3. And gradually reducing the number of the bolt fixing pieces 2 to 2 and 1 along with the gradual knocking-in of the bolt 4, finally removing all the bolt fixing pieces 2, and knocking-in the residual 1/4 bolt 4 to complete the assembly of the bolt turnbuckle 5.
In the above embodiment, the bolt thread sleeve mounting rod 3 serves as a guide rod in the process of embedding the bolt 4 into the bolt groove, so that the bolt 4 is uniformly stressed, and the annular bolt fixing piece 2 ensures that the bolt 4 is not deformed in the whole mounting process.
In some embodiments, as shown in fig. 2, the end of the plug screw sleeve mounting rod 1 contacting the plug screw sleeve 5 is a thin rod end, the other end is a thick rod end, a cylindrical transition section is arranged between the thick rod end and the thin rod end, and the length L3 of the cylindrical transition section is generally 1-2 mm. The thin rod end is provided with an external thread matched with the internal thread of the bolt thread sleeve, the specification A of the external thread of the thin rod end is the same as that of the internal thread of the bolt thread sleeve, the total length L2 of the thin rod end is greater than the effective length L1 of the external thread of the thin rod end, and the effective length L1 of the external thread is the same as that of the internal thread. The outer diameter B of the cylindrical transition section is not larger than the small diameter of the external thread. The outer diameter C of the thick rod end of the bolt thread sleeve mounting rod is larger than the outer diameter of the thin rod end outer thread and smaller than the distance between the bolts. The thick rod end is provided with a through hole 11. When the bolt turnbuckle 5 needs to be installed on high-strength materials such as stainless steel, high-temperature alloy and the like, the tool further comprises a core rod inserted into the through hole 11.
In the above embodiment, the provision of the circular transition section prevents the internal thread from being damaged during installation of the plug insert 5, while the core rod serves to assist in screwing the plug insert 5 into the base material.
In some embodiments, as shown in fig. 3-4, the thickness L4 of the bolt fixing piece is 1/4 of the height of the bolt on the bolt thread insert, the inner side of the bolt fixing piece 2 is provided with a square notch, the length D and width E of the notch are the same as the length of the bolt on the bolt thread insert, and the fit relationship is controlled to be transition fit by machining tolerance, and the number of the notches is the same as the number of the bolts on the bolt thread insert, and is usually 2 or 4.
In the above embodiment, the bolt fixing piece 2 fixes the bolt through the square notch during the installation of the bolt threaded sleeve 5, and the bolt 4 is prevented from being deformed or broken in the process of knocking in the bolt groove.
In some embodiments, as shown in fig. 5, the inner diameter F of the bolt knocking rod 3 is the same as the outer diameter C of the thick rod end of the bolt turnbuckle mounting rod, and the fit relationship between the bolt knocking rod 3 and the bolt turnbuckle mounting rod 1 is controlled to be a small clearance fit by tolerance, so that the bolt knocking rod 3 is ensured not to deviate in the process of knocking the bolt 4 into the bolt groove by using the bolt turnbuckle mounting rod 1 as a guide rod. The outer diameter G of the bolt knocking rod is selected and matched according to the outer diameter of the bolt thread insert and is not smaller than the major diameter of the external thread of the bolt thread insert. One side of the contact end of the bolt knocking rod 3 and the bolt threaded sleeve 5 is a conical end face, the preferred cone angle is 45 degrees, and the conical end face is designed to ensure that the bolt is stressed more uniformly.
From the above description, those skilled in the art should clearly recognize that the gas turbine plug insert installer provided by the disclosed embodiments is equipped with a gas turbine plug insert installer.
In summary, the gas turbine plug thread insert installation tool provided by the disclosure can ensure smooth screwing of the plug thread insert when the base metal is a material commonly used in gas turbines such as stainless steel and high-temperature alloy, and meanwhile, ensures that the plug is not deformed or bent in the process of being embedded into the plug groove. The gas turbine bolt turnbuckle mounting tool is simple in structure and convenient to use, the mounting quality of the bolt turnbuckle can be guaranteed, and the mounting efficiency can be improved.
It should also be noted that throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure. And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (8)
1. The utility model provides a gas turbine bolt swivel nut installation frock which characterized in that, the frock includes:
the bolt thread sleeve mounting rod is used for mounting the bolt thread sleeve into the base material;
the bolt fixing piece is arranged between the bolt threaded sleeve and the base material and used for fixing the bolt; and
a bolt knocking rod which passes through the bolt threaded sleeve mounting rod when the bolt threaded sleeve is mounted and is used for knocking the bolt,
wherein the content of the first and second substances,
the bolt fixing piece is of a circular ring-shaped sheet structure.
2. The gas turbine plug thread insert mounting tool according to claim 1, wherein one end of the plug thread insert mounting rod, which is in contact with the plug thread insert, is a thin rod end, the other end of the plug thread insert mounting rod is a thick rod end, and a cylindrical transition section with the length of 1-2mm is arranged between the thick rod end and the thin rod end.
3. The gas turbine plug thread insert mounting tool according to claim 2, wherein an external thread matched with an internal thread of the plug thread insert is arranged at the end of the thin rod, and the effective length of the external thread is the same as that of the internal thread.
4. The gas turbine plug thread insert mounting tool of claim 3, wherein an outer diameter of the cylindrical transition section is not greater than the minor diameter of the external thread.
5. The gas turbine plug thread insert mounting tool of claim 2, wherein a through hole is formed in the end of the thick rod.
6. The gas turbine plug thread insert mounting tool according to claim 5, further comprising a core rod inserted from the through hole for assisting the plug thread insert to screw into the base material.
7. The gas turbine bolt thread insert mounting tool according to claim 1, wherein the thickness of the bolt fixing piece is 1/4 of the height of the bolt on the bolt thread insert, a square notch is formed in the inner side of the bolt fixing piece, the square notch is matched with the width of the bolt on the bolt thread insert, and the number of the notches is the same as the number of the bolts on the bolt thread insert.
8. The gas turbine bolt turnbuckle installation tool according to claim 1, wherein an inner diameter of the bolt knocking rod is the same as an outer diameter of the bolt turnbuckle installation rod, and one side of a contact end of the bolt knocking rod and the bolt turnbuckle is a tapered end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022989685.0U CN214352165U (en) | 2020-12-08 | 2020-12-08 | Gas turbine bolt swivel nut installation frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022989685.0U CN214352165U (en) | 2020-12-08 | 2020-12-08 | Gas turbine bolt swivel nut installation frock |
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| CN214352165U true CN214352165U (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621660A (en) * | 2020-12-08 | 2021-04-09 | 青岛中科国晟动力科技有限公司 | Gas turbine bolt turnbuckle installation tool and installation method |
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- 2020-12-08 CN CN202022989685.0U patent/CN214352165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621660A (en) * | 2020-12-08 | 2021-04-09 | 青岛中科国晟动力科技有限公司 | Gas turbine bolt turnbuckle installation tool and installation method |
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