CN203335853U - Self-lubricating graphite packing ring - Google Patents
Self-lubricating graphite packing ring Download PDFInfo
- Publication number
- CN203335853U CN203335853U CN2013203740564U CN201320374056U CN203335853U CN 203335853 U CN203335853 U CN 203335853U CN 2013203740564 U CN2013203740564 U CN 2013203740564U CN 201320374056 U CN201320374056 U CN 201320374056U CN 203335853 U CN203335853 U CN 203335853U
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- packing ring
- self
- ring body
- lubricating graphite
- communicated
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Abstract
The utility model relates to the technical field of gland packing, in particular to a self-lubricating graphite packing ring. The self-lubricating graphite packing ring comprises an annular packing ring body, a plurality of single-way grooves are formed in an inner hole of the packing ring body, one end of each single-way groove penetrates through the end face of the packing ring body, a plurality of circulation holes enabling the inner hole to be communicated with the outer wall are formed in the packing ring body, and the circulation holes are communicated with the corresponding single-way grooves. Compared with the prior art, the self-lubricating graphite packing ring has the advantages that the inner hole of the packing ring body, the outer wall of the packing ring body and one end face of the packing ring body are communicated through the single-way grooves and the circulation holes, a lubricating agent can effectively and further flow, the coefficient of friction between the packing ring and a sealing assembly is reduced, the mechanical use safety of equipment is effectively improved, and the service life of the equipment is effectively prolonged. Transition circular corner processing is carried out on corners to increase the tolerance strength at the outer edges, edge and corner breakage situations caused by bumping are avoided, the product pass percent is improved, and a wear-resisting layer is arranged on a transition circular corner to improve the wear-resisting performance.
Description
Technical field
The utility model relates to the stuffing box packing technical field, particularly a kind of self-lubricating graphite packing ring.
Background technique
Carbon packing ring is a kind ofly to be applicable to oil, chemical industry and some have the environment of the strong corrosive medias such as soda acid, is installed on the mechanical seal product of various rotating equipments, reciprocating pump, valve etc.Common carbon packing ring is structure in the form of a ring, be Expanded graphite after shearing by mould be wound around the compacting form.Due to the good corrosion resistance of graphite, it is relative convenient with installation to produce, and is one of environmental protection row stuffing box packing that current cost performance is higher.
But the material of graphite is more crisp, cause the damage percentage of packing ring in production, circulation and installation process high all the time; There is lack of lubrication in carbon packing ring and causes the problem of corner wearing and tearing also quite serious, and then sealing reduces and then cause leakage, particularly still not enough to some extent under high environment at working condition requirements such as high strength, high line numbers; Often find that carbon packing ring damages in advance while changing packing ring, the corrosion phenomena that weight differs also occurs in the sealed member surface of its contact, causes the valve rod distortion of corroding, and causes larger economic loss.
The model utility content
The purpose of this utility model is for the defect of prior art and deficiency, and a kind of rational in infrastructure, self-lubricating graphite packing ring of using safety, structural stability, wear resistant corrosion resistant is provided.
For achieving the above object, the utility model is by the following technical solutions:
A kind of self-lubricating graphite packing ring described in the utility model, the packing ring body that comprises ring-type, have some single-pass grooves on the endoporus of described body, a wherein end of single-pass groove runs through the end face of body, body is provided with the circulation port of some inner through holes and outer wall, and some circulation ports are communicated with corresponding single-pass groove.
Further, the seam crossing of the outer rim of described body and two end faces all adopts knuckle, and the knuckle place of body is coated with wearing layer.
Further, the 5%-10% that the radius span of the knuckle on described body is body thickness.
Further, be coated with the molybdenum disulfide coating on the outer surface of described body 1.
The utility model beneficial effect is: compared with prior art, endoporus, outer wall that the utility model is communicated with packing ring by single-pass groove and circulation port reach a wherein end face, and then oiling agent can effectively be circulated, friction factor between packing ring and black box is reduced, and the machinery that effectively improves the equipment that protects uses safety and life-span; The tolerance intensity that increases exterior rim is processed in corner by knuckle, avoid producing the situation that collapses quick-fried angle, limit because colliding with, and has improved the up-to-standard rate of product, and wearing layer is set on knuckle to improve wear resistance.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure:
1, body; 2, wearing layer; 11, single-pass groove; 12, circulation port.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of self-lubricating graphite packing ring described in the utility model, the packing ring body 1 that comprises ring-type, have some single-pass grooves 11 on the endoporus of described body 1, a wherein end of single-pass groove 11 runs through the end face of body 1, body 1 is provided with the circulation port 12 of some inner through holes and outer wall, some circulation ports 12 are communicated with corresponding single-pass groove 11, the utility model is communicated with the endoporus of packing ring by single-pass groove 11 and circulation port 12, outer wall reaches a wherein end face, and then oiling agent can effectively be circulated, friction factor between packing ring and black box is reduced, the machinery that effectively improves equipment uses safety and life-span.
The seam crossing of the outer rim of described body 1 and two end faces all adopts knuckle, the 5%-10% that the radius span of the knuckle on body 1 is body 1 thickness, and the knuckle place of body 1 is coated with wearing layer 2; Body 1 increases the tolerance intensity of exterior rim when compacting by knuckle, avoid body 1 to produce the situation that collapses quick-fried angle, limit because colliding with, and has improved the up-to-standard rate of product; And improve the wear resistance of bodies 1 by wearing layer 2 is set on knuckle, avoid the corner inordinate wear of packing ring and cause the reduction of life of product.
Be coated with the molybdenum disulfide coating on the outer surface of preferred body 1, body 1 improves the wear-resisting property of the utility model integral body by the molybdenum disulfide coating, and then improves working life.
The above is only better embodiment of the present utility model, and the equivalence of doing according to the described structure of the utility model patent claim, feature and principle therefore all changes or modifies, and is included in the utility model patent claim.
Claims (4)
1. a self-lubricating graphite packing ring, the packing ring body (1) that comprises ring-type, it is characterized in that: have some single-pass grooves (11) on the endoporus of described body (1), a wherein end of single-pass groove (11) runs through the end face of body (1), body (1) is provided with the circulation port (12) of some inner through holes and outer wall, and some circulation ports (12) are communicated with corresponding single-pass groove (11).
2. self-lubricating graphite packing ring according to claim 1, it is characterized in that: the outer rim of described body (1) and the seam crossing of two end faces all adopt knuckle, and the knuckle place of body (1) is coated with wearing layer (2).
3. self-lubricating graphite packing ring according to claim 1, is characterized in that: the 5%-10% that the radius span of the knuckle on described body (1) is body (1) thickness.
4. self-lubricating graphite packing ring according to claim 1, is characterized in that: on the outer surface of described body (1), be coated with the molybdenum disulfide coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203740564U CN203335853U (en) | 2013-06-27 | 2013-06-27 | Self-lubricating graphite packing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203740564U CN203335853U (en) | 2013-06-27 | 2013-06-27 | Self-lubricating graphite packing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335853U true CN203335853U (en) | 2013-12-11 |
Family
ID=49704529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203740564U Expired - Fee Related CN203335853U (en) | 2013-06-27 | 2013-06-27 | Self-lubricating graphite packing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090497A (en) * | 2015-08-20 | 2015-11-25 | 无锡中强电碳有限公司 | Graphite sealing ring |
| CN105114438A (en) * | 2015-09-02 | 2015-12-02 | 无锡市东赫金属制品有限公司 | Thermal-expansion-resistant bolt |
-
2013
- 2013-06-27 CN CN2013203740564U patent/CN203335853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090497A (en) * | 2015-08-20 | 2015-11-25 | 无锡中强电碳有限公司 | Graphite sealing ring |
| CN105114438A (en) * | 2015-09-02 | 2015-12-02 | 无锡市东赫金属制品有限公司 | Thermal-expansion-resistant bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140627 |
|
| EXPY | Termination of patent right or utility model |