CN2229473Y - Piston of mud pump with changable sealing ring - Google Patents
Piston of mud pump with changable sealing ring Download PDFInfo
- Publication number
- CN2229473Y CN2229473Y CN 95218096 CN95218096U CN2229473Y CN 2229473 Y CN2229473 Y CN 2229473Y CN 95218096 CN95218096 CN 95218096 CN 95218096 U CN95218096 U CN 95218096U CN 2229473 Y CN2229473 Y CN 2229473Y
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing ring
- mud
- piston body
- mud pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a novel piston of a mud pump in the petroleum drilling machinery industry, which is composed of a piston body and upper piston rings arranged on the positioning circular tables of both ends of the piston body. In the petroleum drilling working, the abrasion of the piston of a mud pump subjected from mud is serious, and the piston is replaced after used for scores of hours. The replacement of the piston wastes time and labor, the needed unused time is long, and a good deal of rolled steel is wasted. When the piston of the utility model is replaced, the piston body does not need to be moved, only the piston rings on the end part of the piston are disassembled, and new piston rings are arranged. The service lives of the piston and a cylinder sleeve can be effectively improved, the labor intensity of the piston replacement can be lightened, the unused time can be shortened, and a good deal of rolled steel can be saved.
Description
The utility model relates to a kind of nonpetroleum drilling mechanical fitting, belongs to the renewal product of oil drilling and r eoovery machine slush pump consumable accessory piston commonly used.
In petroleum drilling and mining work, the piston of slush pump is easy to be worn and needs and often changes.Because the sealed lip of piston body and its end is an one, being worn at sealed lip diminishes or after mud cylinder sleeve internal diameter size is ground greatly, whole piston will be replaced, and cause very big waste.In order to increase the application life of piston, a kind of assembly type piston has appearred in recent years, combines by the rubber piston sheet of a plurality of difformities and size, reconcile the diameter dimension of piston with the method for levelling sieve cap degree of tightness.Though but can increase piston diameter owing to reconcile sieve cap, geometry is unsatisfactory, still exists piston wear serious, problems such as insufficient pressure.Therefore, improve the application life of piston to the utmost, shorten the downtime of changing piston, alleviate this labor intensity, just become a new problem in the petroleum drilling and mining work.
For addressing this problem, the utility model has designed a kind of replaceable sealing ring formula mud piston.This piston, it can prolong the application life of piston body effectively, sealing ring be worn or the mud cylinder sleeve in after big by mill, only need change piston packing and promptly finish the work, both downtime had been lacked in the place, can reduce labor intensity again.
The purpose of this utility model is achieved in that the utility model is made of piston body and the removable sealing ring in its both ends or one end.But garden, the location platform that a fixed seal ring is respectively arranged in the both ends or one end of piston body has a circle to prevent the bead that sealing ring comes off at garden, location edge of table; Sealing ring is made into garden ring double-lipped with the wear-resisting elastomeric material of oil resistant, and cross sectional shape is " U " type.When under the effect of piston at piston rod during to a lateral movement, because the increased pressure of this side, the lips portion of sealing ring is pressed towards mud slurry pump cylinder jacket and garden, location platform, along with mud pressure increases, the sealing that lips portion is mated face also increases thereupon, thereby has guaranteed the sealing and the operating pressure of piston.
The utility model so the piston body wearing and tearing are very little, becomes non-easy worn part because piston body and sealing ring are splits, and it must be the crack that piston body and cylinder sleeve have; And sealing ring is by wear-resisting elastomeric material manufacturing, and wearing and tearing are also very little in the work.Be worn when needing to change at the lip of sealing ring, only need sealing ring is taken off down from garden, location platform, novel sealing snare ground is located on the platform of garden just can again; Can also after the cylinder sleeve internal diameter is ground greatly, select large-sized slightly sealing ring, increase the life cycle of cylinder sleeve.Therefore, the utility model had both prolonged application life of piston, had also increased the life cycle of cylinder sleeve, and was very little because of the piston body wearing and tearing, needed the just sealing ring often changed, saved great deal of steel, in use also reduced downtime, alleviated labour intensity.
Structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Accompanying drawing 1 is the sectional drawing of the replaceable sealing ring formula of the utility model mud piston.
With reference to accompanying drawing 1, the utility model is made of piston body (1) and the removable sealing ring (2) in its both ends or one end; At piston body (1) but both ends or one end the positioning round table (3) of a fixed seal ring (2) is respectively arranged, there is a circle to prevent the bead (4) that sealing ring (2) comes off in the outer end of location garden platform (3), sealing ring (2) is garden ring double-lipped, its cross sectional shape is uncovered " U " shape, manufactures with oil resistant, anti abrasive elastomeric material.When under the effect of piston at piston rod during to a lateral movement, because the increased pressure of this side, mud slurry pump cylinder jacket and location garden platform (3) are pressed to respectively in the lips portion (5) of sealing ring (2), along with increasing of mud pressure, lips portion (5) also increases with the sealing of its fitting face thereupon, from but guaranteed the sealing and the operating pressure of piston.Because sealing ring (2) is to rely on flexible fastening on the garden, location of piston body (1) platform (3), when changing sealing ring (2), can be easily with its replacing.
Claims (3)
1, a kind of novel replaceable sealing ring formula mud piston, piston inner hole is the taper hole that cooperates in order to piston rod, it is characterized in that: it is made of piston body (1) and the removable sealing ring (2) at its two ends.
2, the described replaceable sealing ring formula mud piston of claim 1, it is characterized in that: a network for location garden platform (3) that is used for fixing sealing ring (2) is respectively arranged in the both ends or one end of piston body (1), there is a circle to prevent the bead (4) that sealing ring (2) comes off in the outer end of network for location garden platform (3), sealing ring (2) is garden ring double-lipped, and its cross sectional shape is " U " shape that piston body (1) is uncovered dorsad.
3, claim 1 or 2 described replaceable sealing ring formula mud pistons is characterized in that: sealing ring (2) is made of oil resistant, anti abrasive elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218096 CN2229473Y (en) | 1995-08-03 | 1995-08-03 | Piston of mud pump with changable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218096 CN2229473Y (en) | 1995-08-03 | 1995-08-03 | Piston of mud pump with changable sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229473Y true CN2229473Y (en) | 1996-06-19 |
Family
ID=33866738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95218096 Expired - Fee Related CN2229473Y (en) | 1995-08-03 | 1995-08-03 | Piston of mud pump with changable sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229473Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445562C (en) * | 2003-08-29 | 2008-12-24 | 陈勇 | Well drilling pump piston |
| CN106321024A (en) * | 2016-08-31 | 2017-01-11 | 胜利油田高原石油装备有限责任公司 | Hydraulic Oil Pumping Unit Using Immobility Machine to Replace Piston Sealing Element in Oil Cylinder And iReplacing Method |
-
1995
- 1995-08-03 CN CN 95218096 patent/CN2229473Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445562C (en) * | 2003-08-29 | 2008-12-24 | 陈勇 | Well drilling pump piston |
| CN106321024A (en) * | 2016-08-31 | 2017-01-11 | 胜利油田高原石油装备有限责任公司 | Hydraulic Oil Pumping Unit Using Immobility Machine to Replace Piston Sealing Element in Oil Cylinder And iReplacing Method |
| CN106321024B (en) * | 2016-08-31 | 2018-09-28 | 胜利油田高原石油装备有限责任公司 | Motivation does not replace the hydraulic pumping unit and method of oil cylinder piston sealing element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |