CN217355995U - High-temperature part fastening structure - Google Patents
High-temperature part fastening structure Download PDFInfo
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- CN217355995U CN217355995U CN202220218602.4U CN202220218602U CN217355995U CN 217355995 U CN217355995 U CN 217355995U CN 202220218602 U CN202220218602 U CN 202220218602U CN 217355995 U CN217355995 U CN 217355995U
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- ceramic sleeve
- temperature
- connecting hole
- temperature part
- piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a high-temperature part fastening structure, which comprises an upper high-temperature part, a lower high-temperature part, a first ceramic sleeve, a second ceramic sleeve, a connecting piece and a nut, wherein the connecting piece is matched with the nut to fixedly connect the upper high-temperature part and the lower high-temperature part; the upper high-temperature part and the lower high-temperature part are respectively provided with a first connecting hole and a second connecting hole which correspond to each other in position; a first ceramic sleeve and a second ceramic sleeve are respectively fixed on the first connecting hole and the second connecting hole; the connecting piece is provided with a first ceramic sleeve and a second ceramic sleeve in a perforation way, and is matched with a nut to connect and fix the upper high-temperature piece and the lower high-temperature piece, so that the connecting piece and the nut are prevented from being in direct contact with the upper high-temperature piece and the lower high-temperature piece; the outer sides of the first ceramic sleeve and the second ceramic sleeve are fixed on the first connecting hole and the second connecting hole respectively in a detachable mode. The utility model has the advantages of compact structure, non-deformation and gas leakage, etc.
Description
Technical Field
The utility model relates to the technical field of, especially, relate to a high temperature spare fastening structure.
Background
Along with the increase of the load of the internal combustion engine, the application rotating speed and the application pressure ratio of the working wheel of the air compressor of the turbocharger are increased, and the temperature of the surface material of the working wheel generated by friction between the working wheel and sucked compressed air is increased when the working wheel of the traditional aluminum alloy material air compressor of the turbocharger works under the application background of high rotating speed and large diameter. The exhaust pipe and the exhaust gas inlet joint surface of the turbocharger turbine shell are fixedly connected through a flange and a bolt, but the temperature of the joint surface is high, so that the bolt is heated and extended, the tightness of the joint surface is influenced, and air leakage is caused.
The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a compact structure, thermal-insulated efficient high temperature spare fastening structure.
Therefore, the utility model provides a high temperature spare fastening structure.
Preferably, the present invention may also have the following technical features:
a high-temperature part fastening structure comprises an upper high-temperature part, a lower high-temperature part, a first ceramic sleeve, a second ceramic sleeve, a connecting piece and a nut, wherein the connecting piece is matched with the nut to fixedly connect the upper high-temperature part and the lower high-temperature part; the upper high-temperature part and the lower high-temperature part are respectively provided with a first connecting hole and a second connecting hole which correspond to each other in position; a first ceramic sleeve and a second ceramic sleeve are respectively fixed on the first connecting hole and the second connecting hole; the connecting piece is provided with a first ceramic sleeve and a second ceramic sleeve in a perforation way, and is matched with a nut to connect and fix the upper high-temperature piece and the lower high-temperature piece, so that the connecting piece and the nut are prevented from being in direct contact with the upper high-temperature piece and the lower high-temperature piece; the outer sides of the first ceramic sleeve and the second ceramic sleeve are fixed on the first connecting hole and the second connecting hole respectively in a detachable mode.
Further, the connecting piece is a screw or a stud.
Furthermore, the first ceramic sleeve is of a hollow cylindrical structure, and the second ceramic sleeve is provided with an internal thread connected with the screw rod.
Furthermore, the first connecting hole and the second connecting hole are both counter bores; the first ceramic sleeve is arranged at the large end of the first connecting hole, and the second ceramic sleeve is arranged at the large end of the second connecting hole.
Further, the outer diameter of the first ceramic sleeve is larger than the diameter of the pressing surface of the nut.
Further, the connecting piece is a bolt.
Further, the maximum diameter of the head of the bolt is smaller than the outer diameter of the second ceramic sleeve.
Further, the upper surface of the first ceramic sleeve is higher than the upper high-temperature part; the lower surface of the second ceramic sleeve is higher than the lower high-temperature part.
Furthermore, the first connecting hole and the second connecting hole are both through holes.
Furthermore, a gasket is arranged between the upper high-temperature part and the lower high-temperature part.
The utility model discloses beneficial effect with the prior art contrast includes: the outer diameter of the first ceramic sleeve is larger than the pressing surface diameter of the nut, after the nut is screwed, the pressing surface (lower surface) of the nut is completely pressed on the first ceramic sleeve, the nut is prevented from contacting with a high-temperature part, and the working temperature of the nut is reduced.
Drawings
Fig. 1 is a sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.
Non-limiting and non-exclusive embodiments will be described with reference to the following drawings, wherein like reference numerals refer to like parts, unless otherwise specified.
As shown in fig. 1, the high-temperature part fastening structure includes an upper high-temperature part 4 and a lower high-temperature part 6 which are fixedly connected by a connecting member, and the upper high-temperature part 4 and the lower high-temperature part 6 are respectively provided with a plurality of first connecting holes and second connecting holes corresponding to each other in position; the first connecting hole and the second connecting hole are respectively fixed with a first ceramic sleeve 3 and a second ceramic sleeve 7; the connecting piece is provided with a first ceramic sleeve 3 and a second ceramic sleeve 7 through holes, and is matched with the nut 2 to fixedly connect the upper high-temperature part 4 and the lower high-temperature part 6; the outer sides of the first ceramic sleeve 3 and the second ceramic sleeve 7 are respectively fixed on the first connecting hole and the second connecting hole in a detachable mode. The connecting piece is screw rod 1 or stud, and first ceramic cover 3 is the hollow cylinder structure, second ceramic cover 7 is equipped with the internal thread of being connected with screw rod 1. The first ceramic sleeve 3 and the second ceramic sleeve 7 are respectively in interference fit with the first connecting hole and the second connecting hole or are connected through threads. And a gasket 5 is arranged between the upper high-temperature part 4 and the lower high-temperature part 6.
In some embodiments, the first connection hole and the second connection hole are both counter-sunk holes, and are respectively a first counter-sunk hole and a second counter-sunk hole. The first ceramic sheath 3 is mounted at the big end of the first counterbore and the second ceramic sheath 7 is mounted at the big end of the second counterbore. During installation, the lower end of the screw rod 1 is screwed into the internal thread of the second ceramic sleeve 7, the upper end of the screw rod penetrates out of the upper part of the first ceramic sleeve 3, then the screw nut 2 is screwed in, and the upper high-temperature part 4 and the lower high-temperature part 6 are connected and fastened.
In some embodiments, the first connection hole and the second connection hole are both through holes, which are a first through hole and a second through hole, respectively, and the first ceramic sleeve 3 and the second ceramic sleeve 7 are fixed to the first through hole and the second through hole by means of screw connection or interference fit, respectively.
In a preferred embodiment, the outer diameter of the first ceramic sleeve 3 is larger than the diameter of the pressing surface of the nut 2, and after the nut 2 is screwed, the pressing surface (lower surface) of the nut 2 is completely pressed on the first ceramic sleeve 3, so that the nut 2 is prevented from contacting with high-temperature pieces (4,6), and the working temperature of the nut 2 is reduced.
When the connecting piece is a bolt, the maximum diameter of the bolt head is smaller than the outer diameter of the second ceramic sleeve 7, so that the bolt head and the nut 2 are completely pressed on the first ceramic sleeve 3 and the second ceramic sleeve 7.
In the specific embodiment, the connection of the joint surface of the exhaust pipe outlet and the exhaust gas inlet of the turbine shell of the supercharger is described, the upper high-temperature part 4 is the supercharger, the lower high-temperature part 6 is the exhaust pipe, and the supercharger and the exhaust pipe are fixedly connected through the flange surface and the matched bolt.
Those skilled in the art will recognize that numerous variations are possible in light of the above description, and therefore the examples and drawings are merely intended to describe one or more specific embodiments.
While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions can be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents falling within the scope of the present invention.
Claims (10)
1. A high temperature spare fastening structure which characterized in that: the ceramic sleeve type high-temperature welding device comprises an upper high-temperature part, a lower high-temperature part, a first ceramic sleeve, a second ceramic sleeve, a connecting piece and a nut, wherein the connecting piece is matched with the nut to fixedly connect the upper high-temperature part and the lower high-temperature part; the upper high-temperature part and the lower high-temperature part are respectively provided with a first connecting hole and a second connecting hole which correspond to each other in position; a first ceramic sleeve and a second ceramic sleeve are respectively fixed on the first connecting hole and the second connecting hole; the connecting piece is provided with a first ceramic sleeve and a second ceramic sleeve in a perforation way, and is matched with a nut to connect and fix the upper high-temperature piece and the lower high-temperature piece, so that the connecting piece and the nut are prevented from being in direct contact with the upper high-temperature piece and the lower high-temperature piece; the outer sides of the first ceramic sleeve and the second ceramic sleeve are fixed on the first connecting hole and the second connecting hole respectively in a detachable mode.
2. A high-temperature member fastening structure as set forth in claim 1, wherein: the connecting piece is a screw or a double-end stud.
3. A high-temperature member fastening structure as set forth in claim 2, wherein: the first ceramic sleeve is of a hollow cylindrical structure, and the second ceramic sleeve is provided with an internal thread connected with the screw rod.
4. A high-temperature member fastening structure as set forth in claim 2, wherein: the first connecting hole and the second connecting hole are both countersunk holes; the first ceramic sleeve is arranged at the large end of the first connecting hole, and the second ceramic sleeve is arranged at the large end of the second connecting hole.
5. A high-temperature member fastening structure as set forth in claim 2, wherein: the outer diameter of the first ceramic sleeve is larger than the diameter of the pressing surface of the nut.
6. A high-temperature member fastening structure as set forth in claim 1, wherein: the connecting piece is a bolt.
7. A high-temperature member fastening structure as set forth in claim 6, wherein: the maximum diameter of the head of the bolt is smaller than the outer diameter of the second ceramic sleeve.
8. A high-temperature member fastening structure as set forth in claim 1, wherein: the upper surface of the first ceramic sleeve is higher than the upper high-temperature part; the lower surface of the second ceramic sleeve is higher than the lower high-temperature part.
9. A high-temperature member fastening structure as defined in claim 1, wherein: the first connecting hole and the second connecting hole are both through holes.
10. A high-temperature member fastening structure as set forth in claim 1, wherein: and a gasket is arranged between the upper high-temperature part and the lower high-temperature part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220218602.4U CN217355995U (en) | 2022-01-26 | 2022-01-26 | High-temperature part fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220218602.4U CN217355995U (en) | 2022-01-26 | 2022-01-26 | High-temperature part fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355995U true CN217355995U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220218602.4U Active CN217355995U (en) | 2022-01-26 | 2022-01-26 | High-temperature part fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355995U (en) |
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2022
- 2022-01-26 CN CN202220218602.4U patent/CN217355995U/en active Active
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