CN217633835U - Novel dovetail groove sealing structure - Google Patents
Novel dovetail groove sealing structure Download PDFInfo
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- CN217633835U CN217633835U CN202221876711.1U CN202221876711U CN217633835U CN 217633835 U CN217633835 U CN 217633835U CN 202221876711 U CN202221876711 U CN 202221876711U CN 217633835 U CN217633835 U CN 217633835U
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- dovetail
- gib
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- sealing
- ring
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Abstract
The utility model discloses a novel dovetail groove sealing structure, which comprises a sealing cover plate and a milling groove part, wherein the sealing cover plate is arranged above the milling groove part; a rectangular groove is formed in the milling groove part, and two dovetail inlaid strips which are oppositely arranged in the direction are placed in the rectangular groove; the dovetail gib is provided with a countersunk bolt hole for mounting a connecting bolt; a sealing ring is arranged between the two dovetail inlaid strips; the top plane of the dovetail gib and the top plane of the milling groove part are positioned on the same straight line, and the top plane of the dovetail gib can be slightly lower than the top plane of the rectangular groove; the connecting bolt penetrates through the countersunk bolt hole and is embedded into the milling groove part; the sealing rings are O-shaped rings, and the dovetail grooves of the O-shaped rings are the same in length; the dovetail gib is a right trapezoid gib; the structure that realizes the dovetail through the cooperation of forked tail panel and sealing washer is sealed in the rectangular channel that this utility milled and offered on the slot portion, and can splice each other between the forked tail panel, and the processing degree of difficulty is little.
Description
Technical Field
The utility model belongs to the technical field of dovetail seal structure, concretely relates to novel dovetail seal structure.
Background
The dovetail groove sealing structure is a common static sealing structure, has the advantage that a sealing ring is not easy to fall off, and has irreplaceable importance in sealing of certain structures (such as the sealing groove on a cover plate and the cover plate cannot be rotated upwards for assembly).
The existing dovetail sealing groove is formed by milling a sealing cavity or a cover plate on a machine tool by using a special dovetail milling cutter at one time, the processing difficulty is high, and the sealing groove can not be spliced. If the dovetail sealing groove is an ultra-large structural member, a machine tool capable of machining the dovetail sealing groove on the structural member is very expensive, the market quantity of the dovetail sealing groove is very small, and the machining cost is very high.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a novel dovetail seal structure has solved the great and dovetail problem that can not splice of the current dovetail seal structure processing degree of difficulty.
In order to achieve the above object, the utility model adopts the following technical scheme:
the novel dovetail groove sealing structure comprises a sealing cover plate and a groove milling part, wherein the sealing cover plate is arranged above the groove milling part; a rectangular groove is formed in the milling groove part, and two dovetail inlaid strips which are oppositely arranged in the direction are placed in the rectangular groove; countersunk bolt holes for mounting connecting bolts are formed in the dovetail gib blocks; and a sealing ring is arranged between the two dovetail inlaid strips.
Further, the top plane of the dovetail gib is flush or lower than the milled slot portion top plane.
Further, the connecting bolt passes through the countersunk bolt hole and is embedded in the milled groove portion.
Furthermore, the sealing ring is an O-shaped ring, and the circumference of the O-shaped ring is the same as the center length of the assembled dovetail groove.
Furthermore, the dovetail gib is a right-angled trapezoid gib; the right-angle side of the right-angle trapezoid inlaid strip is close to or clings to the milling groove part, and the oblique side extrudes the O-shaped ring.
Further, the sealing ring is a trapezoid ring, and the trapezoid ring is an isosceles trapezoid or a right-angle trapezoid.
Further, the dovetail gib is a polygonal gib; the polygonal panel is provided with a linear edge and a contact bevel edge; the contact bevel edge is connected with the waist contact of the trapezoidal ring.
The utility model discloses a novel dovetail seal structure, its beneficial effect is:
1. the utility model reduces the processing difficulty of the dovetail sealing groove, can realize the processing of the sealing groove on a smaller machine tool, and is matched with the dovetail gib to splice a dovetail groove sealing structure; the novel dovetail groove sealing structure is adopted, the transportation cost and the processing cost of the ultra-large component are reduced, and the processing period is shortened.
The utility model discloses it is level and smooth to polish after the tailor-welded, makes concatenation department leak-proof gas, and the difficulty of polishing after the big tailor-welded of one shot forming's dovetail tailor-welded degree of difficulty is also big. The event the utility model discloses a dovetail structure is assembled out to rectangular channel with the forked tail panel's reason is that the butt welding degree of difficulty is little after the workable shaping of rectangular channel, the butt welding is accomplished the back and is polished the level degree of difficulty and also little. After the rectangular grooves of the components are welded and polished, dovetail gibs are installed to assemble the dovetail groove sealing structure.
2. The dovetail sealing grooves can be mutually spliced, and dovetail gibs can be processed in a segmented manner; the ultra-large structural part can be decomposed into a plurality of large structural parts for processing the milling groove parts, and then the milling groove parts at the splicing parts of the components are spliced and welded and polished manually.
Drawings
FIG. 1 is a schematic structural diagram of a novel dovetail groove sealing structure;
FIG. 2 is a schematic view of a groove milling portion of the novel dovetail groove sealing structure;
FIG. 3 is a schematic view of a right trapezoid panel of the novel dovetail groove sealing structure;
FIG. 4 is a schematic diagram of a trapezoidal ring and a polygonal gib of the novel dovetail groove sealing structure;
fig. 5 is a schematic diagram of a rectangular ring in the novel dovetail groove sealing structure.
In the figure: 1. sealing the cover plate; 2. an O-shaped ring; 3. a right trapezoid panel; 4. a connecting bolt; 5. milling a groove part; 6. a rectangular groove; 7. countersunk bolt holes; 8. a trapezoidal ring; 9. a polygonal panel; 10. a straight line edge; 11. contacting the bevel edge; 12. a rectangular loop.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1-5, the scheme provides a novel dovetail groove sealing structure, which comprises a sealing cover plate 1 and a milling groove part 5, wherein the sealing cover plate 1 is arranged above the milling groove part 5; a rectangular groove 6 is formed in the milling groove part 5, and dovetail inlaid strips which are oppositely arranged in two directions are placed in the rectangular groove 6; a countersunk bolt hole 7 for installing the connecting bolt 4 is formed in the dovetail gib, and the same function can be realized by modifying the countersunk bolt hole 7 into a bolt groove.
And a sealing ring is arranged between the two dovetail inlaid strips. The utility model discloses a sealed apron 1 covers mills slot part 5, mills the structural seal that realizes the dovetail through the cooperation of forked tail panel and sealing washer in the rectangular channel 6 that offers on the slot part 5, and can splice each other between the rectangular channel 6, and the processing degree of difficulty is little.
The top plane of the dovetail gib and the top plane of the milling groove part 5 are located on the same straight line, besides, the top plane of the dovetail gib of the embodiment can be slightly lower than the top plane of the milling groove part, and the bottom of the connecting bolt 4 penetrates through the countersunk bolt hole 7 and is embedded into the milling groove part 5.
The sealing ring can be suitable for dovetail groove sealing of sealing rings with various shapes, preferably, the sealing rings can be an O-shaped ring 2, a trapezoidal ring 8 and a rectangular ring 12, and the perimeter of the O-shaped ring 2 is basically the same as the center length of the dovetail groove; the dovetail gib is a right trapezoid gib 3; the right-angle side of the right-angle trapezoidal panel 3 is close to or close to the milling groove part 5, and the oblique side extrudes the O-shaped ring 2.
The sealing ring is a trapezoid ring 8, the section of the trapezoid ring 8 is trapezoid, the trapezoid can be isosceles trapezoid, and the section of the trapezoid can be designed into the section sizes of other shapes, such as a bottom trapezoid and an upper rectangle, such as a right trapezoid; the dovetail gib is a polygonal gib 9; the polygonal panel 9 is provided with a straight edge 10 and a contact bevel edge 11; the oblique contact edge 11 is connected with the waist contact of the trapezoidal ring 8.
The deviation between the perimeter of the O-shaped ring 2 and the center length of the dovetail groove is less than or equal to +/-20 percent in the embodiment, because the O-shaped ring 2 has elasticity and can be slightly compressed or elongated. For example, an actual need for an O-ring 2 with a diameter of 8.0mm and a circumference of 200mm could be replaced by using an O-ring 2 elongation of the same volume with a diameter of 8.2mm and a circumference of 195 mm.
Meanwhile, when the O-shaped ring 2 is used, the sealing effect is not influenced when the diameter deviation is small, and the O-shaped ring 2 can be designed to be surplus.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive work within the scope of the appended claims.
Claims (7)
1. The utility model provides a novel dovetail seal structure which characterized in that: the sealing cover plate (1) is arranged above the milling groove part (5); a rectangular groove (6) is formed in the milling groove part (5), and two dovetail inlaid strips which are oppositely arranged in the direction are placed in the rectangular groove (6); the dovetail gib is provided with a countersunk bolt hole (7) for mounting a connecting bolt (4); a sealing ring is arranged between the two dovetail inlaid strips (3).
2. The novel dovetail groove sealing structure according to claim 1, wherein: the top plane of the dovetail gib is flush with or lower than the top plane of the milling groove part (5).
3. The novel dovetail groove sealing structure according to claim 2, wherein: the connecting bolt (4) penetrates through the countersunk bolt hole (7) and is embedded into the milling groove part (5).
4. The novel dovetail groove sealing structure according to claim 3, characterized in that: the sealing ring is an O-shaped ring (2), and the perimeter of the O-shaped ring (2) is the same as the center length of the assembled dovetail groove.
5. The novel dovetail groove sealing structure according to claim 4, wherein: the dovetail gib is a right trapezoid gib (3); the right-angle side of the right-angle trapezoidal panel (3) is close to or clings to the milling groove part (5), and the oblique side extrudes the O-shaped ring (2).
6. The novel dovetail groove sealing structure according to claim 3, wherein: the sealing ring is a trapezoid ring (8), and the trapezoid ring (8) is an isosceles trapezoid or a right-angle trapezoid.
7. The novel dovetail groove sealing structure of claim 6, wherein: the dovetail gib is a polygonal gib (9); the polygonal gib (9) is provided with a straight edge (10) and a contact bevel edge (11); the contact inclined edge (11) is in contact connection with the waist of the trapezoidal ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876711.1U CN217633835U (en) | 2022-07-11 | 2022-07-11 | Novel dovetail groove sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876711.1U CN217633835U (en) | 2022-07-11 | 2022-07-11 | Novel dovetail groove sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633835U true CN217633835U (en) | 2022-10-21 |
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ID=83634565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876711.1U Active CN217633835U (en) | 2022-07-11 | 2022-07-11 | Novel dovetail groove sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633835U (en) |
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2022
- 2022-07-11 CN CN202221876711.1U patent/CN217633835U/en active Active
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