CN105715538A - Novel slurry pump cylinder sleeve - Google Patents
Novel slurry pump cylinder sleeve Download PDFInfo
- Publication number
- CN105715538A CN105715538A CN201410716176.7A CN201410716176A CN105715538A CN 105715538 A CN105715538 A CN 105715538A CN 201410716176 A CN201410716176 A CN 201410716176A CN 105715538 A CN105715538 A CN 105715538A
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- China
- Prior art keywords
- inner sleeve
- overcoat
- annular shoulder
- new
- shoulder block
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Abstract
The invention provides a novel slurry pump cylinder sleeve. The problem that existing metallic cylinder sleeves for oil drilling slurry pumps are short in service life is solved. The novel slurry pump cylinder sleeve comprises a cylindrical inner sleeve body and a cylindrical outer sleeve body. The inner sleeve body is fixed in the outer sleeve body in a close fit mode. Protruding cylindrical connecting cylinders are arranged on the outer side wall of the outer sleeve body. Annular shoulders are arranged on the inner side walls of the connecting cylinders, and each annular shoulder faces one corresponding end face of the inner sleeve body. The ends of screws penetrate through the annular shoulders and are in threaded connection with the inner sleeve body. The novel slurry pump cylinder sleeve has the advantage of long service life.
Description
Technical field
The invention belongs to a kind of slush pump, particularly a kind of new-type mortar pump liner.
Background technology
Adopt at present at a high speed, high-pressure jet drilling technique be the inevitable choice of oil field drilling development trend.And only with the slush pump of high reliability.Slush pump is the heart of oil drilling workbench, and cylinder sleeve and piston are the friction pairs in slush pump key mechanism.Due to the severe (pump pressure 17～35Mpa of working condition; piston jig frequency 100～120 beats/min; friction temperature 70～170 DEG C; mud sand content 3-5%; and in alkalescence PH9-10) service life of making slush pump is extremely short; easily shut down replacing, have a strong impact on drilling efficiency, cause again raw material to consume in a large number and the serious waste in equipment man-hour.Therefore, improve the service life of cylinder sleeve, be the requisite measure improving drilling efficiency and economic benefit.
A kind of metal cylinder sleeve of mud pump for petroleum drilling [application number: 201120096110.4 as disclosed in Chinese patent storehouse；Authorization Notice No.: CN202007775U], Metallic cylinder is set to split-type structural, including internal layer cylinder sleeve and outer layer cylinder sleeve two-layer, is interference fit between internal layer cylinder sleeve and outer layer cylinder sleeve, and one end of described outer layer cylinder sleeve is provided with stopping-receding bench.Described internal layer cylinder sleeve is high carbon and chromium wear-resistant alloy layer.Described outer layer cylinder sleeve is carbon steel layer.
Owing to being that the mode by interference fit is fixedly connected with between above-mentioned outer layer cylinder sleeve and internal layer cylinder sleeve, when life-time service, internal layer cylinder sleeve can move relative to overcoat, still can cause that inner sleeve comes off from outer layer cylinder sleeve.
Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that a kind of new-type mortar pump liner of a kind of long service life.
The purpose of the present invention can be realized by following technical proposal: a kind of new-type mortar pump liner, including inner sleeve all cylindrically and overcoat, described inner sleeve is fixed in overcoat by friction tight mode, it is characterized in that, the lateral wall of described overcoat has protrusion and tubular connecting cylinder, described connecting cylinder medial wall has annular shoulder block and described annular shoulder block is relative with described inner sleeve wherein end face, screw end through annular shoulder block and with described inner sleeve bolt.
In use, the piston of slush pump can be close to inner sleeve medial wall slide make inner sleeve have depart from overcoat trend.And by screw, annular shoulder block and inner sleeve are fixedly connected with so that inner sleeve and overcoat hold together, thus avoiding the risk that inner sleeve comes off from outer set, improve the service life of this kind of new-type mortar pump liner.
In above-mentioned a kind of new-type mortar pump liner, described connecting cylinder and described overcoat are formed by same material one-shot forming.
Namely connecting cylinder and overcoat are integral structures, further increase the firmness connected between inner sleeve and overcoat, then further increase the service life of this kind of new-type mortar pump liner；Meanwhile, connecting cylinder and overcoat adopt integral structure, and the installation making this kind of new-type mortar pump liner is more convenient.
In above-mentioned a kind of new-type mortar pump liner, described connecting cylinder has two and lays respectively at described overcoat two ends.
Annular shoulder block in one of them connecting cylinder is fixedly connected with by screw and inner sleeve wherein one end, annular shoulder block in another connecting cylinder is fixedly connected with also by screw and the inner sleeve other end, thus the further high firmness connected between inner sleeve and overcoat, then further increase the service life of this kind of new-type mortar pump liner.
In above-mentioned a kind of new-type mortar pump liner, the axial length of described inner sleeve is equal with the axial length of overcoat, and described inner sleeve end face and overcoat end face flush.
By above-mentioned design, farthest increase the contact area of jacket and inner sleeve, so that the connection of inner sleeve and overcoat is more firm, thus further increasing the service life of this kind of new-type mortar pump liner.
In above-mentioned a kind of new-type mortar pump liner, it is equipped with a sealing gasket in the form of a ring between annular shoulder block and described inner sleeve described in each, and this sealing gasket is positioned at the junction of described inner sleeve and overcoat, described sealing gasket one end offsets with annular shoulder block medial wall, and the described sealing gasket other end offsets with the end face of inner sleeve and overcoat respectively.
By arranging sealing gasket in the junction of inner sleeve and overcoat, the connection between inner sleeve and overcoat is made to keep good sealing, thus avoid, the impurity such as water enters between inner sleeve and overcoat, affect the firmness connected between inner sleeve and overcoat, thus further increasing the service life of this kind of new-type mortar pump liner.Meanwhile, under the effect of screw, sealing gasket can deform upon so that the connection between inner sleeve and overcoat keeps better seal, thus further increasing the service life of this kind of new-type mortar pump liner.
In above-mentioned a kind of new-type mortar pump liner, described annular shoulder block medial wall is a conical surface, and the radial inward set direction of this annular shoulder block medial wall is gradually increased.
By arranging tapered annular shoulder block medial wall, putting into of sealing gasket is played guide effect, make sealing gasket can enter between annular shoulder block and inner sleeve more swimmingly, the connection between inner sleeve and overcoat is made to keep good sealing, thus avoid, the impurity such as water enters between inner sleeve and overcoat, affect the firmness connected between inner sleeve and overcoat, thus further increasing the service life of this kind of new-type mortar pump liner.
Compared with prior art, this one new-type mortar pump liner has the advantage that
1, by screw, annular shoulder block and inner sleeve being fixedly connected with so that inner sleeve and overcoat hold together, thus avoiding the risk that inner sleeve comes off from outer set, improve the service life of this kind of new-type mortar pump liner；
2, connecting cylinder and overcoat are integral structures, further increase the firmness connected between inner sleeve and overcoat, then further increase the service life of this kind of new-type mortar pump liner；Meanwhile, connecting cylinder and overcoat adopt integral structure, and the installation making this kind of new-type mortar pump liner is more convenient；
3, by arranging sealing gasket in the junction of inner sleeve and overcoat, the connection between inner sleeve and overcoat is made to keep good sealing, thus avoid, the impurity such as water enters between inner sleeve and overcoat, affect the firmness connected between inner sleeve and overcoat, thus further increasing the service life of this kind of new-type mortar pump liner.
Accompanying drawing explanation
Fig. 1 is the structural representation of this kind of new-type mortar pump liner；
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1.
In figure, 1, overcoat；1a, connecting cylinder；1a1, annular shoulder block；2, inner sleeve；3, screw；4, sealing gasket.
Detailed description of the invention
The following is specific embodiments of the invention and in conjunction with accompanying drawing, technical scheme is further described, but the present invention is not limited to these embodiments.
As it is shown in figure 1, this kind of new-type mortar pump liner is made up of inner sleeve 2 all cylindrically and overcoat 1, wherein, inner sleeve 2 is fixedly connected with by friction tight mode and overcoat 1, and inner sleeve 2 is made up of high carbon and chromium wear resistant alloy material, and overcoat 1 is made up of carbon steel material.
Specifically, the axial length of inner sleeve 2 is equal with the axial length of overcoat 1, and corresponding with on the overcoat 1 respectively both ends of the surface of the both ends of the surface of inner sleeve 2 flush, so that the contact area of inner sleeve 2 and overcoat 1 maximizes, the connection making inner sleeve 2 and overcoat 1 is more firm.
Overcoat 1 lateral wall has protrusion and connecting cylinder 1a cylindrically, and this connecting cylinder 1a is coaxially disposed with inner sleeve 2.Connecting cylinder 1a medial wall has annular shoulder block 1a1 and this annular shoulder block 1a1 is relative with inner sleeve 2 wherein end face, screw 3 end is through annular shoulder block 1a1 and is screwed in inner sleeve 2, inner sleeve 2 and overcoat 1 are held together, thus avoiding the risk that inner sleeve 2 comes off from overcoat 1.Optimize further, connecting cylinder 1a has two and lays respectively at overcoat 1 two ends, annular shoulder block 1a1 it is respectively provided with in each connecting cylinder 1a, and each annular shoulder block 1a1 is fixedly connected with each through some screws 3 and inner sleeve 2, thus further increasing the firmness connected between inner sleeve 2 and overcoat 1, then further increase the service life of this kind of new-type mortar pump liner.
In the present embodiment, connecting cylinder 1a and overcoat 1 are formed by same material one-shot forming.Namely connecting cylinder 1a and overcoat 1 are integral structures, further increase the firmness connected between inner sleeve 2 and overcoat 1, then further increase the service life of this kind of new-type mortar pump liner；Meanwhile, connecting cylinder 1a and overcoat 1 adopt integral structure, and the installation making this kind of new-type mortar pump liner is more convenient.
As in figure 2 it is shown, each annular shoulder block 1a1 and inner sleeve corresponding thereto 2 end face between be equipped with a sealing gasket 4, sealing gasket 4 in the form of a ring and this sealing gasket 4 be positioned at inner sleeve 2 and the junction of overcoat 1, thus the junction of inner sleeve 2 and overcoat 1 is sealed.Sealing gasket 4 one end offsets with annular shoulder block 1a1 medial wall, and this sealing gasket 4 other end offsets with the end face of inner sleeve 2 and overcoat 1 respectively, thus avoid, the impurity such as water enters between inner sleeve 2 and overcoat 1.Simultaneously under the effect of screw 3, sealing gasket 4 can deform upon so that the connection between inner sleeve 2 and overcoat 1 keeps better seal, thus further increasing the service life of this kind of new-type mortar pump liner.
Optimize further, annular shoulder block 1a1 medial wall is a conical surface, and the radial inward of this conical surface overlaps 2 directions and is gradually increased, thus guide effect is played in putting into of sealing gasket 4, make sealing gasket 4 can enter between annular shoulder block 1a1 and inner sleeve 2 more swimmingly, the connection between inner sleeve 2 and overcoat 1 is made to keep good sealing, thus avoid, the impurity such as water enters between inner sleeve 2 and overcoat 1, affect the firmness connected between inner sleeve 2 and overcoat 1, thus further increasing the service life of this kind of new-type mortar pump liner.
Specific embodiment described herein is only to present invention spirit explanation for example.Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by those skilled in the art, but without departing from the spirit of the present invention or surmount the scope that appended claims is defined.
Claims (6)
1. a new-type mortar pump liner, including inner sleeve all cylindrically and overcoat, described inner sleeve is fixed in overcoat by friction tight mode, it is characterized in that, the lateral wall of described overcoat has protrusion and tubular connecting cylinder, described connecting cylinder medial wall has annular shoulder block and described annular shoulder block is relative with described inner sleeve wherein end face, screw end through annular shoulder block and with described inner sleeve bolt.
2. a kind of new-type mortar pump liner according to claim 1, it is characterised in that described connecting cylinder and described overcoat are formed by same material one-shot forming.
3. a kind of new-type mortar pump liner according to claim 1 and 2, it is characterised in that described connecting cylinder has two and lays respectively at described overcoat two ends.
4. a kind of new-type mortar pump liner according to claim 3, it is characterised in that the axial length of described inner sleeve is equal with the axial length of overcoat, and described inner sleeve end face and overcoat end face flush.
5. a kind of new-type mortar pump liner according to claim 4, it is characterized in that, it is equipped with a sealing gasket in the form of a ring between annular shoulder block and described inner sleeve described in each, and this sealing gasket is positioned at the junction of described inner sleeve and overcoat, described sealing gasket one end offsets with annular shoulder block medial wall, and the described sealing gasket other end offsets with the end face of inner sleeve and overcoat respectively.
6. a kind of new-type mortar pump liner according to claim 5, it is characterised in that described annular shoulder block medial wall is a conical surface, the radial inward set direction of this annular shoulder block medial wall is gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716176.7A CN105715538A (en) | 2014-12-02 | 2014-12-02 | Novel slurry pump cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716176.7A CN105715538A (en) | 2014-12-02 | 2014-12-02 | Novel slurry pump cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105715538A true CN105715538A (en) | 2016-06-29 |
Family
ID=56146142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410716176.7A Pending CN105715538A (en) | 2014-12-02 | 2014-12-02 | Novel slurry pump cylinder sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715538A (en) |
-
2014
- 2014-12-02 CN CN201410716176.7A patent/CN105715538A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |