CN216110874U - Turbine stator connection structure based on 3D prints - Google Patents
Turbine stator connection structure based on 3D prints Download PDFInfo
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- CN216110874U CN216110874U CN202122976425.4U CN202122976425U CN216110874U CN 216110874 U CN216110874 U CN 216110874U CN 202122976425 U CN202122976425 U CN 202122976425U CN 216110874 U CN216110874 U CN 216110874U
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Abstract
The utility model relates to the technical field of turbine stator connection, and particularly discloses a turbine stator connection structure based on 3D printing, which is used for connecting a first stator and a second stator; the connecting lug seat is arranged on the outer side of the first stator and the outer side of the second stator and connected with the female nut connecting piece, and comprises a circumferential fixing structure and a connecting lug seat, wherein the female nut connecting piece is sleeved on the outer sides of the first stator and the second stator and connected with the first stator and the second stator respectively, the circumferential fixing structure is arranged at one end, close to one end, of the first stator and the second stator, and the connecting lug seat is arranged on the outer side of the first stator and connected with the female nut connecting piece. The utility model can effectively realize the connection of the first stator and the second stator, and has reliable connection, convenient assembly and disassembly and high working efficiency.
Description
Technical Field
The utility model relates to the technical field of turbine stator connection, in particular to a turbine stator connection structure based on 3D printing.
Background
The conventional turbine stator connection is flange and bolt, and the current NH-200-P design is also conventional, requiring 18 bolts and nuts per stage, and shims to bolt the casings of each stage together. 18 x 3-54 bolt related parts are needed for connecting the first stator and the second stator; the whole engine can be assembled or disassembled in several hours each time; the assembly efficiency is low, and the processing and assembly cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a turbine stator connection structure based on 3D printing, which can quickly realize connection of a turbine stator and has a simple and reliable connection mode.
The technical problem to be solved by the utility model is as follows:
a turbine stator connection structure based on 3D printing is used for connecting a first stator and a second stator; the connecting lug seat is arranged on the outer side of the first stator and the outer side of the second stator and connected with the female nut connecting piece, and comprises a circumferential fixing structure and a connecting lug seat, wherein the female nut connecting piece is sleeved on the outer sides of the first stator and the second stator and connected with the first stator and the second stator respectively, the circumferential fixing structure is arranged at one end, close to one end, of the first stator and the second stator, and the connecting lug seat is arranged on the outer side of the first stator and connected with the female nut connecting piece.
According to the utility model, the first stator and the second stator are relatively fixed in the axial direction through the connection of the female nut connecting piece and the second stator, and then the axial force is generated by the rotation torque around the axial direction through the connection of the connecting lug seat arranged on the first stator and the female nut connecting piece, so that the two stators are tightly fixed together and have good air tightness; the circumferential fixing structure is arranged on one side, close to each other, of the first stator and the second stator, so that circumferential fixing of the first stator and the second stator is effectively realized;
in some possible embodiments, to efficiently achieve installation of the female nut connector;
the female nut connecting piece comprises two connecting bodies which are identical in structure and connected with each other.
In some possible embodiments, the connecting body comprises a semi-annular connecting piece, connecting plates arranged at two ends of the semi-annular connecting piece and connected with the connecting lug seats, and circumferential screws for connecting the connecting plates and the connecting lug seats; and the connecting plates of the two semi-annular connecting pieces are connected with each other.
In some possible embodiments, there are at least two connecting plates, and the connecting ear seats are arranged in one-to-one correspondence with the connecting plates.
In some possible embodiments, the semi-annular connecting piece is L-shaped in cross section and includes a semi-cylindrical connecting portion connected to the connecting plate and a semi-annular limiting portion connected to and coaxial with a side of the semi-cylindrical connecting portion away from the connecting plate.
In some possible embodiments, to enable the female nut coupling to generate an axial force for a rotational torque about the axis; the inner side of the semi-cylindrical connecting part is provided with a clamping groove which is arranged in an arc line segment and is inclined along the axial direction of the female nut connecting part; and a clamping groove matched with the mounting clamping block is arranged on the outer side of the first stator.
In some possible embodiments, in order to effectively realize the fixation of the female nut connecting piece to the first stator and the second stator in the axial direction;
and one side of the second stator, which is close to the semi-annular limiting part, is provided with an annular boss which is matched and installed by the semi-annular connecting piece.
In some possible embodiments, the annular boss includes an annular abutting portion abutting against one side of the semi-annular limiting portion close to the semi-cylindrical connecting portion, and an insertion portion connected to the annular abutting portion and extending into a gap formed between the semi-cylindrical connecting portion and the second stator.
In some possible embodiments, in order to effectively ensure that the first stator and the second stator have good air tightness after being connected; an annular slot is formed between the inserting part and the outer side face of the second stator, and an annular inserting block which is matched with the annular slot is arranged at one end of the first stator, which is close to the second stator.
In some possible embodiments, in order to effectively realize relative fixation of the first stator and the second stator in the circumferential direction;
the circumferential fixing structure comprises a protrusion and a groove, wherein the protrusion is arranged at one end of the first stator, which is close to the two ends of the first stator, and is arranged along the circumferential direction of the first stator, and the groove is arranged at one end of the second stator, which is close to the one end of the first stator, and is matched with the protrusion for installation.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the fixing of the first stator and the second stator in the axial direction is effectively realized through the arrangement of the female nut connecting piece;
the first stator and the second stator are effectively fixed in the circumferential direction by arranging the circumferential fixing structures on the first stator and the second stator;
according to the utility model, the annular boss is arranged to form a gap with the outer wall of the stator II, and the annular boss is arranged in the gap through the inserting part to form a staggered concave-convex structure, so that the connection of the stator I and the stator II has good air tightness;
compared with the prior art, the utility model has the advantages that the use of bolts is reduced, the assembly and disassembly efficiency is effectively improved, and the processing cost is reduced.
Drawings
FIG. 1 is a schematic connection diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic structural diagram of a stator I according to the present invention;
FIG. 4 is a schematic structural diagram of a stator II according to the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 2 according to the present invention;
FIG. 6 is an enlarged view of the utility model at B of FIG. 4;
FIG. 7 is a schematic structural view of a female nut coupling of the present invention;
FIG. 8 is a schematic view of the construction of the semi-annular connector of the present invention;
wherein: 1. a stator I; 11. connecting the ear seat; 12. a clamping block; 13. a protrusion; 14. an annular insert block; 2. a stator II; 21. an annular boss; 22. a groove; 3. a female nut connector; 31. a connecting plate; 32. a semi-cylindrical connecting portion; 321. a card slot; 33. a semi-annular limiting part.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in detail below.
As shown in fig. 1-8;
a turbine stator connection structure based on 3D printing is used for connection of a stator I1 and a stator II 2; including the suit in the first 1 of stator and the second 2 outsides of stator and the female nut connecting piece 3 that is connected with first 1 of stator and the second 2 of stator respectively, set up at the fixed structure of the circumference that first 1 of stator and the second 2 of stator are close to one end each other and set up in the first 1 outsides of stator and the connection ear seat 11 of being connected with female nut connecting piece 3.
According to the utility model, the first stator 1 and the second stator 2 are relatively fixed in the axial direction through the connection of the female nut connecting piece 3 and the second stator 2, and then the axial force is generated by the rotation torque around the axial direction through the connection of the connecting lug seat 11 arranged on the first stator 1 and the female nut connecting piece 3, so that the two stators are tightly fixed together; the circumferential fixing structure is arranged on one side, close to each other, of the first stator 1 and the second stator 2, so that circumferential fixing of the first stator and the second stator is effectively realized;
in some possible embodiments, to efficiently achieve installation of the female nut connector;
the female nut connecting piece comprises two connecting bodies which are identical in structure and connected with each other.
The two connectors are connected with each other to form a cavity, and the first stator 1 and the second stator 2 are positioned in the cavity; and is connected with the connector, thereby realizing the relative fixation of the stator I1 and the stator II 2.
In some possible embodiments, the connecting body comprises a semi-annular connecting piece, a connecting plate 31 disposed at two ends of the semi-annular connecting piece and connected with the connecting ear seat 11, and a circumferential screw for connecting the connecting plate 31 and the connecting ear seat 11; the connecting plates 31 of the two semi-annular connecting pieces are mutually connected and arranged on the outer sides of the first stator 1 and the second stator 2 in a connecting mode.
As shown in fig. 8, two ends of the semi-annular connecting piece are respectively provided with a connecting plate 31, the connecting plate 31 is sequentially provided with 3 threaded holes along the axial direction of the stator 1, wherein the threaded hole in the middle is used for being matched with the connecting lug seat 11 and the circumferential screw rod to realize connection with the stator 1; the upper threaded hole and the lower threaded hole are used for connecting the two semi-annular connecting pieces;
in some possible embodiments, as shown in fig. 5, the semi-annular connecting member has an L-shaped cross section, and includes a semi-cylindrical connecting portion 32 connected to the connecting plate 31, and a semi-annular limiting portion 33 connected to and coaxial with the semi-cylindrical connecting portion 32 on the side away from the connecting plate 31.
In some possible embodiments, in order to enable the female nut coupling 3 to generate an axial force for a rotational torque around the axis; a clamping groove 321 is formed in the inner side of the semi-cylindrical connecting part 32, and the clamping groove 321 is arranged in an arc line segment and is obliquely arranged along the axial direction of the female nut connecting part; and a clamping groove 321 is formed in the outer side of the stator I1 and is matched with the clamping block 12.
The circumferential screw is screwed to drive the two semi-annular connecting pieces to be mutually tensioned and close, the clamping groove 321 is obliquely arranged, and the semi-annular connecting pieces move towards one side of the first stator 1, so that the second stator 2 connected with the female nut connecting piece 3 receives an axial force, and the first stator 1 and the second stator 2 are connected better and firmly; the matching of the clamping groove 321 and the clamping block 12 also enables the first stator 1 and the female nut not to be displaced circumferentially or axially directly.
In some possible embodiments, the plurality of locking grooves 321 are uniformly arranged along the circumferential direction of the semi-cylindrical connecting portion 32, and the locking blocks 12 are arranged in one-to-one correspondence with the locking grooves 321.
In some possible embodiments, in order to effectively realize the fixation of the female nut connecting piece 3 to the stators one 1 and two 2 in the axial direction;
an annular boss 21 which is matched with the semi-annular connecting piece is arranged on one side of the stator II 2 close to the semi-annular limiting part 33; the semi-annular connecting piece is arranged on the outer side of the annular boss 21;
as shown in fig. 5, the section of the annular boss 21 is L-shaped, and includes an annular abutting portion abutting against one side of the semi-annular limiting portion 33 close to the semi-cylindrical connecting portion 32, and an insertion portion connected to the annular abutting portion and extending into a gap formed between the semi-cylindrical connecting portion 32 and the stator 2.
When assembling, the semi-annular limiting part 33 is abutted with the annular abutting part, and the inserting part is inserted into the gap; when female nut mounting atress is to being close to the first 1 one side motion of stator, because the spacing portion of semiorbicular 33 will make two 2 of stators to being close to the first 1 one side motion of stator with cyclic annular butt portion butt to it is more firm to realize connection between them.
In some possible embodiments, in order to effectively ensure that the stator I1 and the stator II 2 have good air tightness after being connected; an annular slot is formed between the inserting part and the outer side surface of the second stator 2, and an annular inserting block 14 which is matched with the annular slot is arranged at one end of the first stator 1 close to the second stator 2.
As shown in fig. 5, a gap is formed between the insertion part and the outer side surface of the stator 2, and the annular insertion block 14 is inserted into the gap during assembly to form a staggered concave-convex structure, so that the connection between the stator 1 and the stator 2 has good air tightness.
In some possible embodiments, in order to effectively achieve relative fixation of the stator one 1 and the stator two 2 in the circumferential direction;
the circumferential fixing structure comprises a protrusion 13 which is arranged at one end of the first stator 1 close to the second stator 2 and is arranged along the circumferential direction of the first stator, and a groove 22 which is arranged at one end of the second stator 2 close to the first stator 1 and is matched with the protrusion 13.
The protrusions 13 are matched with the grooves 22, so that the first stator 1 and the second stator 2 cannot rotate along the circumferential direction of the stators, and circumferential fixing is achieved;
the protrusion 13 can also be arranged at the end of the stator II 2 close to the stator I1, and the groove 22 is arranged at the end of the stator I1 close to the stator II 2.
Preferably, the number of the protrusions 13 is four, and the protrusions are uniformly arranged along the circumferential direction of the stator 1.
The utility model not only can meet the connection of two stators, but also can be realized by adopting the connection mode of the utility model when a plurality of stages of stators need to be connected;
for example, when the stator 2 is connected with the stator three, the protrusion 13, the annular insert block 14, the slot 321 and the connecting lug 11 are arranged at one end of the stator 2 away from the stator 1; the third stator is provided with an annular boss 21 and is connected through a female nut connecting piece 3, and the structure of the third stator is the same as that of the first stator 1 and the second stator 2.
According to the utility model, the connection between the stator II 2 and the female nut connecting piece 3 is realized through the abutting connection of the annular boss 21 and the two semi-annular limiting parts 33, and bolts do not need to be added for the connection; the utility model greatly reduces the using amount of the connecting bolt and effectively improves the assembly efficiency.
The utility model is not limited to the foregoing embodiments. The utility model extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A turbine stator connection structure based on 3D printing is used for connecting a first stator and a second stator; the connecting structure is characterized by comprising a female nut connecting piece, a circumferential fixing structure and a connecting lug, wherein the female nut connecting piece is sleeved on the outer sides of the first stator and the second stator and is respectively connected with the first stator and the second stator, the circumferential fixing structure is arranged at one end, close to one end of the first stator and the second stator, and the connecting lug is arranged on the outer side of the first stator and is connected with the female nut connecting piece.
2. The 3D printing-based turbine stator connection structure as claimed in claim 1, wherein the female nut connection member comprises two connection members which are identical in structure and are connected with each other.
3. The turbine stator connecting structure based on 3D printing of claim 2, wherein the connecting body comprises a semi-annular connecting piece, connecting plates arranged at two ends of the semi-annular connecting piece and connected with the connecting lug seats, and circumferential screws for connecting the connecting plates with the connecting lug seats; and the connecting plates of the two semi-annular connecting pieces are connected with each other.
4. The turbine stator connecting structure based on 3D printing of claim 3, wherein the semi-annular connecting piece is L-shaped in cross section and comprises a semi-cylindrical connecting portion connected with the connecting plate and a semi-annular limiting portion which is connected with the side, far away from the connecting plate, of the semi-cylindrical connecting portion and is coaxial with the semi-cylindrical connecting portion.
5. The turbine stator connecting structure based on 3D printing is characterized in that clamping grooves are formed in the inner side of the semi-cylindrical connecting part, are arranged in an arc line and are obliquely arranged along the axial direction of the female nut connecting part; and a clamping groove matched with the mounting clamping block is arranged on the outer side of the first stator.
6. The turbine stator connecting structure based on 3D printing as claimed in claim 5, wherein the plurality of clamping grooves are uniformly arranged along the circumferential direction of the semi-cylindrical connecting part, and the clamping blocks and the clamping grooves are arranged in a one-to-one correspondence.
7. The turbine stator connecting structure based on 3D printing of claim 4, wherein one side of the stator II, which is close to the semi-annular limiting part, is provided with an annular boss which is matched with the semi-annular connecting piece.
8. The 3D printing-based turbine stator connection configuration of claim 7,
the annular boss comprises an annular abutting part which abuts against one side, close to the semi-cylindrical connecting part, of the semi-annular limiting part and an inserting part which is connected with the annular abutting part and extends into a gap formed by the semi-cylindrical connecting part and the stator II.
9. The turbine stator connecting structure based on 3D printing of claim 8, wherein an annular slot is formed between the inserting portion and an outer side surface of the stator II, and an annular inserting block which is matched with the annular slot is arranged at one end, close to the stator II, of the stator I.
10. The 3D printing-based turbine stator connecting structure is characterized in that the circumferential fixing structure comprises a protrusion which is arranged at one end of the first stator close to the two ends of the first stator and is arranged along the circumferential direction of the first stator, and a groove which is arranged at one end of the second stator close to the one end of the first stator and is matched and installed with the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122976425.4U CN216110874U (en) | 2021-11-29 | 2021-11-29 | Turbine stator connection structure based on 3D prints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122976425.4U CN216110874U (en) | 2021-11-29 | 2021-11-29 | Turbine stator connection structure based on 3D prints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110874U true CN216110874U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122976425.4U Active CN216110874U (en) | 2021-11-29 | 2021-11-29 | Turbine stator connection structure based on 3D prints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216110874U (en) |
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2021
- 2021-11-29 CN CN202122976425.4U patent/CN216110874U/en active Active
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