CN217056318U

CN217056318U - Concatenation formula graphite seal ring

Info

Publication number: CN217056318U
Application number: CN202220762734.3U
Authority: CN
Inventors: 王成强
Original assignee: QINGDAO QIANGLONG ELECTRIC POWER PETROCHEMICAL FITTINGS CO Ltd
Current assignee: QINGDAO QIANGLONG ELECTRIC POWER PETROCHEMICAL FITTINGS CO Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-26
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to the technical field of sealing elements, in particular to a splicing type graphite sealing ring, which comprises three arc-shaped graphite splicing pieces, wherein the shape formed by the three arc-shaped graphite splicing pieces is annular; the arc-shaped graphite splicing piece comprises a support frame and a graphite layer attached to the outer surface of the support frame; the two end parts of the support frame are respectively provided with a fastening end I and a fastening end II which are used for connecting another support frame; buckling end I and buckling end II are provided with bolt hole I and bolt hole II respectively, and bolt hole I and bolt hole II pass through bolted connection. The utility model can effectively improve the structural strength of the graphite sealing ring by adding the supporting frame in the middle of the graphite layer; the utility model consists of three arc graphite splicing pieces, can be spliced and disassembled, and can adapt to complex installation environment; through set up lock joint end I and lock joint end II at the both ends of support frame for it is convenient that the installation is dismantled. The utility model discloses, structural strength is high, and strong adaptability, it is convenient to install.

Description

Concatenation formula graphite seal ring

Technical Field

The utility model relates to a sealing member technical field, concretely relates to concatenation formula graphite sealing ring.

Background

The graphite sealing ring is a sealing element with a graphite material, and the graphite material has the characteristics of corrosion resistance, strong oxidation resistance, low resistance and the like; the graphite sealing ring is mainly used for sealing a rotating part of a machine and is an important part which is not lacked in modern high-efficiency machines.

In the prior art, the graphite sealing ring is manufactured in an integrated forming mode, cannot be spliced, is difficult to adapt to a complex installation environment, and has poor structural strength. Therefore, a graphite sealing ring with structural strength and capable of being installed in a splicing manner needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The splicing type graphite sealing ring is provided aiming at the problems that in the prior art scheme, the graphite sealing ring method is used for splicing, the complex installation environment is difficult to adapt, and the structural strength is poor.

The technical scheme of the utility model as follows:

the utility model provides a concatenation formula graphite seal ring which characterized in that: comprises three arc graphite splicers; the included angle of two ends of the arc-shaped graphite splicing piece is 120 degrees; the shape formed by the three arc-shaped graphite splicing pieces is annular; the arc-shaped graphite splicing piece comprises a support frame and a graphite layer attached to the outer surface of the support frame;

the two end parts of the support frame are respectively provided with a buckling end I and a buckling end II; the fastening end I of one arc-shaped graphite splicing piece is fixedly connected with the fastening end II of the other arc-shaped graphite splicing piece; the sum of the thicknesses of the buckling end I and the buckling end II which are spliced is equal to the thickness of one supporting frame; the buckling end I is provided with a bolt hole I; the buckling end II is provided with a bolt hole II matched with the bolt hole I; and the bolt hole I and the bolt hole II are connected through a bolt.

Preferably, the buckling end I comprises an extension part I, a connecting part I and a buckling part I; the extension part I is fixedly connected to one end part of the support frame, and the lower end face of the extension part I is flush with the lower end face of the support frame; the connecting part I is fixedly connected to the upper end face of the extending part I, and the outer end face of the connecting part I is flush with the outer end face of the support frame; the buckling part I is fixedly connected to the upper end face of the connecting part I, and the outer end face of the buckling part I is flush with the outer end face of the connecting part I; the width of buckling part I along support frame circumferential direction is greater than the width of connecting portion, is less than the width of extension I.

Preferably, the bolt hole I penetrates through the upper end face and the lower end face of the buckling part I and extends into the extension part I.

Preferably, the buckling end II comprises an extension part II, a connecting part II and a buckling part II; the extension part II is fixedly connected to the other end of the support frame, and the upper end face of the extension part II is flush with the upper end face of the support frame; the connecting part II is fixedly connected to the lower end face of the extending part II, and the outer end face of the connecting part II is flush with the outer end face of the support frame; the buckling part II is fixedly connected to the lower end face of the connecting part II, and the outer end face of the buckling part II is flush with the outer end face of the connecting part II; the width of the buckling part II along the circumferential direction of the support frame is larger than that of the connecting part and smaller than that of the extending part II.

Preferably, the bolt hole II penetrates through the upper end face and the lower end face of the buckling part II and the extending part II.

According to the technical scheme, compared with the prior art, the invention has the following advantages:

the utility model can effectively improve the structural strength of the graphite sealing ring by adding the supporting frame in the middle of the graphite layer; the utility model consists of three arc graphite splicing pieces which can be spliced and disassembled, and can adapt to complex installation environment; through set up lock joint end I and lock joint end II at the both ends of support frame for it is convenient that the installation is dismantled. The utility model discloses, structural strength is high, and strong adaptability, it is convenient to install.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an explosion diagram of the present invention.

The labels in the figure are:

1. arc graphite splice 2, support frame 3, graphite layer 4, lock joint end I

5. Buckling end II 6, bolt hole I7, bolt hole II 8 and bolt

9. Extension part I10, connecting part I11, buckling part I12 and extension part II

13. Connecting part II 14 and buckling part II

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention is further explained with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of, and do not limit, the invention.

It should be understood that the terms "upper end surface, top end, left and right ends, left side, right side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the invention.

A splicing type graphite sealing ring comprises three arc-shaped graphite splicing pieces 1; as shown in fig. 1, the included angle between the joints of the two ends of one arc-shaped graphite splicing member 1 is 120 °; three arc-shaped graphite splicing pieces 1 are connected together in a splicing mode, and the formed shape is annular and is used for sealing a mechanical rotating part; as shown in fig. 2, each arc-shaped graphite splice 1 comprises a support frame 2 and a graphite layer 3, the graphite layer 3 is adhered to the support frame 2 into a whole, the graphite layer 3 is mainly attached to the upper end face, the lower end face, the inner circumferential face and the outer circumferential face of the support frame 2, and the thickness of the graphite layer 3 at the end face is equal.

As shown in fig. 3, the left and right ends of the supporting frame 2 are respectively provided with a buckling end i 4 and a buckling end ii 5; the two support frames 2 are connected together in a buckling mode through a buckling end I4 of one support frame 2 and a buckling end II 5 of the other support frame 2; after the two support frames 2 are installed, the sum of the thicknesses of the buckling end I4 and the buckling end II 5 which are spliced together is equal to the thickness of the support frames 2, so that the surface of the sealing ring which is spliced together is ensured to have no height difference, and the sealing ring is smooth and flat and increases the sealing property.

As shown in fig. 3, the fastening end i 4 includes an extension portion i 9, a connection portion i 10, and a fastening portion i 11. The extension part I9 is a plate and is arranged along the circumferential direction of the sealing ring; the end face of the inner side of the extension part I9 is fixedly connected to one end of the support frame 2, the lower end face of the extension part I is flush with the lower end face of the support frame 2, the thickness of the extension part I is one fourth of that of the support frame 2, and the width between the inner and outer circumferential curved surfaces of the extension part I is equal to that between the inner and outer curved surfaces of the sealing ring; the extension i 9 serves to limit the inward movement of the two support brackets 2. The connecting part I10 is a plate and is arranged along the circumferential direction of the sealing ring; the lower end face of the connecting part I10 is fixedly connected to the upper end face of the extending part I9, and the outer end face of the connecting part I is flush with the outer end face of the extending part I9; the thickness of the connecting part I10 is equal to that of the extending part I9, the width between the inner and outer circumferential curved surfaces of the connecting part I is equal to that between the inner and outer curved surfaces of the extending part I9, and the length of the connecting part I in the circumferential direction is equal to one third of that of the extending part I9 in the circumferential direction; the connecting part I10 is used for limiting the circumferential movement of the two support frames 2. The buckling part I11 is a plate and is arranged along the circumferential direction of the sealing ring; the lower end face of the buckling part I11 is fixedly connected to the upper end face of the connecting part I10, and the outer end face of the buckling part I11 is flush with the outer end face of the connecting part I10; the thickness of the buckling part I11 is equal to that of the connecting part I10, the width between the inner curved surface and the outer curved surface of the buckling part I is equal to that between the inner curved surface and the outer curved surface of the connecting part I10, and the length of the buckling part I in the circumferential direction is equal to two thirds of the length of the extending part I9 in the circumferential direction; the buckling parts I11 are used for limiting the outward movement of the two support frames 2.

As shown in fig. 3, the fastening end ii 5 includes an extension portion ii 12, a connection portion ii 13, and a fastening portion ii 14. The extension part II 12 is a plate and is arranged along the circumferential direction of the sealing ring; the end face of the inner side of the extension part II 12 is fixedly connected to the other end of the support frame 2, the upper end face of the extension part II is flush with the upper end face of the support frame 2, the thickness of the extension part II is one fourth of that of the support frame 2, and the width between the inner and outer circumferential curved surfaces of the extension part II is equal to that between the inner and outer curved surfaces of the sealing ring; the extension II 12 serves to limit the inward movement of the two support frames 2. The connecting part II 13 is a plate and is arranged along the circumferential direction of the sealing ring; the upper end face of the connecting part II 13 is fixedly connected to the lower end face of the extending part II 12, and the outer end face of the connecting part II is flush with the outer end face of the extending part II 12; the thickness of the connecting part II 13 is equal to that of the extending part II 12, the width between the inner and outer circumferential curved surfaces of the connecting part II is equal to that between the inner and outer curved surfaces of the extending part II 12, and the length of the connecting part II in the circumferential direction is equal to one third of that of the extending part II 12 in the circumferential direction; the connecting part II 13 is used for limiting the circumferential movement of the two support frames 2. The buckling part II 14 is a plate and is arranged along the circumferential direction of the sealing ring; the upper end face of the buckling part II 14 is fixedly connected to the lower end face of the connecting part II 13, and the outer end face of the buckling part II 14 is flush with the outer end face of the connecting part II 13; the thickness of the buckling part II 14 is equal to that of the connecting part II 13, the width between the inner curved surface and the outer curved surface of the buckling part II is equal to that between the inner curved surface and the outer curved surface of the connecting part II 13, and the length of the buckling part II in the circumferential direction is equal to two thirds of the length of the extending part II 12 in the circumferential direction; the fastening part II 14 is used for limiting the outward movement of the two support frames 2.

As shown in fig. 2, the fastening end i 4 is provided with a bolt hole i 6, and the bolt hole i 6 penetrates through the upper and lower end faces of the fastening part i 11 and extends into the extension part i 9; the buckling end II 5 is provided with a bolt hole II 7, and the bolt hole II 7 penetrates through the upper end face and the lower end face of the buckling part II 14 and the extension part II 12; when the two support frames 2 are spliced, the axis of the bolt hole I6 is superposed with the axis of the bolt hole II 7; the graphite layer 3 positioned at the bolt hole II 7 is provided with a corresponding mounting hole, so that the bolt can be conveniently mounted. Two support frames 2 that accomplish the concatenation, bolt hole I6 and bolt hole II 7 pass through bolt 8 fastening, and the up end height of bolt 8 is less than the up end on graphite layer 3. The arrangement of the bolt hole I6, the bolt hole II 7 and the bolt 8 is beneficial to further fastening the two support frames 2 which are arranged together.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention, which are made by those skilled in the art without departing from the spirit of the present invention, should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a concatenation formula graphite seal ring which characterized in that: comprises three arc graphite splicing pieces (1); the included angle of two ends of the arc-shaped graphite splicing piece (1) is 120 degrees; the shape formed by the three arc-shaped graphite splicing pieces (1) is annular; the arc-shaped graphite splicing piece (1) comprises a support frame (2) and a graphite layer (3) attached to the outer surface of the support frame (2);

the two end parts of the support frame (2) are respectively provided with a buckling end I (4) and a buckling end II (5); the buckling end I (4) of one arc-shaped graphite splicing piece (1) is fixedly connected with the buckling end II (5) of the other arc-shaped graphite splicing piece (1); the sum of the thicknesses of the buckling end I (4) and the buckling end II (5) which are spliced is equal to the thickness of the supporting frame (2); the buckling end I (4) is provided with a bolt hole I (6); the buckling end II (5) is provided with a bolt hole II (7) matched with the bolt hole I (6); the bolt hole I (6) is connected with the bolt hole II (7) through a bolt (8).

2. The split graphite seal ring of claim 1, wherein: the buckling end I (4) comprises an extension part I (9), a connecting part I (10) and a buckling part I (11); the extension part I (9) is fixedly connected to one end part of the support frame (2), and the lower end face of the extension part I is flush with the lower end face of the support frame (2); the connecting part I (10) is fixedly connected to the upper end face of the extending part I (9), and the outer end face of the connecting part I is flush with the outer end face of the support frame (2); the buckling part I (11) is fixedly connected to the upper end face of the connecting part I (10), and the outer end face of the buckling part I is flush with the outer end face of the connecting part I (10); the width of buckling part I (11) along the circumferential direction of support frame (2) is greater than the width of connecting part, is less than the width of extension I (9).

3. The split graphite seal ring of claim 1, wherein: bolt hole I (6) run through the upper and lower terminal surface of buckling part I (11), extend to in extension I (9).

4. The split graphite seal ring of claim 1, wherein: the buckling end II (5) comprises an extension part II (12), a connecting part II (13) and a buckling part II (14); the extension part II (12) is fixedly connected to the other end of the support frame (2), and the upper end face of the extension part II is flush with the upper end face of the support frame (2); the connecting part II (13) is fixedly connected to the lower end face of the extending part II (12), and the outer end face of the connecting part II is flush with the outer end face of the support frame (2); the buckling part II (14) is fixedly connected to the lower end face of the connecting part II (13), and the outer end face of the buckling part II is flush with the outer end face of the connecting part II (13); the width of the buckling part II (14) along the circumferential direction of the support frame (2) is larger than that of the connecting part and smaller than that of the extending part II (12).

5. The split graphite seal ring of claim 1, wherein: and the bolt hole II (7) penetrates through the upper end face and the lower end face of the buckling part II (14) and the extension part II (12).