CN209261806U - A kind of super-high-pressure plunger pump structure - Google Patents
A kind of super-high-pressure plunger pump structure Download PDFInfo
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- CN209261806U CN209261806U CN201822249775.9U CN201822249775U CN209261806U CN 209261806 U CN209261806 U CN 209261806U CN 201822249775 U CN201822249775 U CN 201822249775U CN 209261806 U CN209261806 U CN 209261806U
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- clear opening
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- plunger pump
- sealing
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Abstract
The utility model discloses a kind of super-high-pressure plunger pump structures, including cylinder sleeve and piston rod, clear opening is equipped in the middle part of the cylinder sleeve, one end of piston rod is protruded into above-mentioned clear opening, and piston rod is formed by seal assembly and the first sealing gland for compressing the seal assembly and the cylinder sleeve and is tightly connected；Input and output material crossover sub is equipped on the outside of the other end of clear opening, the feed and exhaust tube of input and output material crossover sub is fixed on cylinder sleeve by the second sealing gland, and the inner end of feed and exhaust tube contacts sealing with the formation of straight-through bore ends.Super-high-pressure plunger pump structure provided by the utility model, which reduce the parts that stress in structure is concentrated, to extend the service life of equipment.
Description
Technical field
The utility model relates to clasmatosis equipment more particularly to a kind of super-high-pressure plunger pump structures.
Background technique
Clasmatosis function will enter cell material therein by destroyer and be crushed.Biomixer includes high pressure
Plunger pump, high-pressure plunger pump are equipped with cylinder sleeve, piston rod and input and output material crossover sub, and input and output material crossover sub passes through feed and exhaust tube
It is connected to cylinder sleeve.At work, the piston rod in high-pressure plunger pump by move back and forth, by cell to be broken from discharging input and output material
The feed inlet of crossover sub sucks, then it is pressed into destroyer from discharge port.However, since the cylinder sleeve of high-pressure plunger pump is in piston
The power for frequently bearing back and forth to stretch is needed in bar motion process, and is all using platform in current super-high-pressure plunger pump, in cylinder sleeve
Rank hole, pressurized cell to be broken can make the stepped hole turning point in cylinder sleeve biggish pressure, stress collection easy to form occur
In, there is creep, the circulation of high pressure-low pressure under pressure in cylinder sleeve, it is easy to and metal fatigue is caused, crackle is formed, it is durable
Property is poor, and the service life so as to cause super-high-pressure plunger pump structure is shorter.
Utility model content
The purpose of the utility model is to provide a kind of super-high-pressure plunger pump structures, and which reduce the portions that stress in structure is concentrated
Point, to extend the service life of equipment.
To achieve the above object, the utility model provides a kind of super-high-pressure plunger pump structure, including cylinder sleeve and piston rod, institute
It states and is equipped with clear opening in the middle part of cylinder sleeve, one end of piston rod is protruded into above-mentioned clear opening, and piston rod passes through seal assembly and will be described
The first sealing gland and the cylinder sleeve that seal assembly compresses, which are formed, to be tightly connected；Input and output material is equipped on the outside of the other end of clear opening
The feed and exhaust tube of crossover sub, input and output material crossover sub is fixed on cylinder sleeve by the second sealing gland, the inner end of feed and exhaust tube
Sealing is contacted with the formation of straight-through bore ends.
The cylinder sleeve includes the inner cylinder liner and outer cylinder sheath being mutually arranged as a further improvement of the utility model, described
Clear opening is arranged in the middle part of inner cylinder liner, and the seal assembly is embedded on the inside of inner cylinder liner；The inner cylinder liner is stainless steel structure, institute
Stating outer cylinder sheath is high-strength structure set；Third gland, third gland and sealing are installed between second sealing gland and outer cylinder sheath
Inner cylinder liner is clipped in the middle by component.
It is the conical surface between the inner end of the feed and exhaust tube and straight-through bore ends as the further improvement of the utility model
Sealing structure.
As the further improvement of the utility model, the seal assembly includes along the direction far from the first sealing gland
Floating wear-resistant sleeve, high-pressure seal ring and the wear-resistant sleeve being sequentially arranged, floating wear-resistant sleeve, high-pressure seal ring and wear-resistant sleeve three it is outer
Diameter is sequentially reduced, and the first sealing gland is pressed in floating wear-resistant sleeve side, and the inner sidewall of clear opening 18 is equipped with presses with the first sealing
Lid clamps the limit hierarchic structure of floating wear-resistant sleeve, high-pressure seal ring and wear-resistant sleeve three jointly.
As the further improvement of the utility model, by being equipped between the feed and exhaust tube and the second sealing gland
The nut thread of internal and external screw thread connects.
As the further improvement of the utility model, the inner end of the feed and exhaust tube is equipped with the extension for stretching to clear opening
Portion is microgap reduced pressure sealing between extension and clear opening, and gap between the two is 0.008-0.012mm；Outside extension
Side wall is equipped with annular groove, is arranged in the annular groove and contacts the second sealing ring with extension and clear opening.
As the further improvement of the utility model, the top of the extension includes dismountable baffle, and annular is recessed
Side on slot far from baffle is equipped with the ring-shaped step of protrusion, and the baffle and ring-shaped step constitute the annular groove.
Beneficial effect
Compared with prior art, the advantages of the super-high-pressure plunger pump structure of the utility model are as follows:
1, due in cylinder sleeve use clear opening, then piston rod is moved back and forth in clear opening, be pressurized cell to be broken
When generating pressure to clear opening side wall, the pressure that clear opening inner wall is subject to is relatively uniform, it is not easy to there is the position of stress concentration,
The creep effect under pressure effect is avoided, then the service life of entire super-high-pressure plunger pump structure will greatly prolong.
2, since the anti-pressure ability of cylinder sleeve inner cavity requires height, the anti-pressure ability requirement on the outside of cylinder sleeve is lower, and therefore, cylinder sleeve is adopted
With double-layer structure comprising the inner cylinder liner and outer cylinder sheath being mutually arranged, wherein inner cylinder liner is stainless steel structure, and outer cylinder sheath is height
The anti-pressure ability of strength structure set, inner cylinder liner is stronger, is integrally all made into high-strength structure without cylinder sleeve, reduces cost, while
After inner cylinder liner breaks down, maintenance cost is also lower.With only by feed and exhaust tube compress inner cylinder liner compared with, by third gland come
It is more firm to compress inner cylinder liner.
It 3, is conical surface sealing structure between the end and clear opening of feed and exhaust tube, sealing effect is good, additional without this
Sealing element, structure is simple.
4, it is connected between feed and exhaust tube and the second sealing gland by being equipped with the nut thread of internal and external screw thread, stability is more
It is good.
5, the extension on feed and exhaust tube top stretches to inner cylinder liner inner cavity, and extension lateral wall is equipped with sealing ring, extends
It is microgap reduced pressure sealing between portion and inner cylinder liner intracavity sidewall, gap between the two is 0.008-0.012mm, plays decompression
Effect.
Through the following description and in conjunction with the attached drawings, the utility model will become more fully apparent, these attached drawings are for explaining this
The embodiment of utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the cross-sectional view of super-high-pressure plunger pump structure in embodiment 1；
Fig. 2 is the cross-sectional view of super-high-pressure plunger pump structure in embodiment 2；
Fig. 3 is the structural schematic diagram on feed and exhaust tube top in embodiment 3.
Specific embodiment
The embodiments of the present invention are described referring now to the drawings.
Embodiment 1
Specific embodiment of the present utility model is as shown in Figure 1, a kind of super-high-pressure plunger pump structure, including cylinder sleeve 12 and living
Stopper rod 5 is equipped with clear opening 18 in the middle part of cylinder sleeve 12, and one end of piston rod 5 is protruded into above-mentioned clear opening 18, and piston rod 5 passes through sealing
Component and the first sealing gland 1 for compressing the seal assembly are formed with the cylinder sleeve 12 and are tightly connected；Clear opening 18 it is another
Input and output material crossover sub 10 is equipped on the outside of one end, the feed and exhaust tube 8 of input and output material crossover sub 10 is fixed by the second sealing gland 9
On cylinder sleeve 12, the inner end of feed and exhaust tube 8 is formed with 18 end of clear opening contacts sealing.Specifically, piston rod 5 is close across first
Sealed cover 1, feed and exhaust tube 8 pass through the second sealing gland 9.Between first sealing gland 1 and cylinder sleeve 12, the second sealing gland 9 with
It is to be threadedly coupled between cylinder sleeve 12.Input and output material crossover sub 10 is equipped with three channels, and a channel is feed and exhaust tube 8, separately
Outer two passes are respectively inlet port and outlet port.
It is conical surface sealing structure 17 between 18 end of inner end and clear opening of feed and exhaust tube 8.Specifically, feed and exhaust tube 8
End is equipped with outer conical surface, and 18 end of clear opening is equipped with internal conical surface.
Seal assembly includes floating wear-resistant sleeve 2, the high-pressure seal ring being sequentially arranged along the direction far from the first sealing gland 1
3 and wear-resistant sleeve 4, the outer diameter of 4 three of floating wear-resistant sleeve 2, high-pressure seal ring 3 and wear-resistant sleeve be sequentially reduced, the first sealing gland 1 pressure
In 2 side of floating wear-resistant sleeve, the inner sidewall of clear opening 18 is equipped with clamps floating wear-resistant sleeve 2, height with the first sealing gland 1 jointly
The limit hierarchic structure of 4 three of pressure seal ring 3 and wear-resistant sleeve.
It is threadedly coupled between feed and exhaust tube 8 and the second sealing gland 9 by being equipped with the nut 13 of internal and external screw thread.
When installation, the cylinder sleeve 12 of the super-high-pressure plunger pump structure is connect by bolt with cylinder body 16, and piston rod 5 stretches out cylinder sleeve
One end outside 12 is located in cylinder body 16 and links with driving mechanism.
Embodiment 2
As shown in Fig. 2, difference from example 1 is that, cylinder sleeve 12 includes the inner cylinder liner 7 and outer cylinder sheath being mutually arranged
6, for the setting of clear opening 18 at 7 middle part of inner cylinder liner, seal assembly is embedded in 7 inside of inner cylinder liner.Inner cylinder liner 7 is stainless steel structure, outside
Cylinder sleeve 6 is high-strength structure set；Be installed with third gland 11 between second sealing gland 9 and outer cylinder sheath 6, third gland 11 with it is close
Inner cylinder liner 7 is clipped in the middle by sealing assembly.It is conical surface seal between the end of feed and exhaust tube 8 and the cavity ends edge of inner cylinder liner 7
Structure 17, specifically, the end of feed and exhaust tube 8 is equipped with outer conical surface, the cavity ends of inner cylinder liner 7 are equipped with internal conical surface.Third
Gland 11 is to be threadedly coupled with outer cylinder sheath 6, is threadedly coupled between third gland 11 and the second sealing gland 9.
Seal assembly includes floating wear-resistant sleeve 2, the high-pressure seal ring being sequentially arranged along the direction far from the first sealing gland 1
3 and wear-resistant sleeve 4, the outer diameter of 4 three of floating wear-resistant sleeve 2, high-pressure seal ring 3 and wear-resistant sleeve be sequentially reduced, the first sealing gland 1 pressure
In 2 side of floating wear-resistant sleeve, 7 inner sidewall of inner cylinder liner is equipped with clamps floating wear-resistant sleeve 2, high pressure with the first sealing gland 1 jointly
The limit hierarchic structure of 4 three of sealing ring 3 and wear-resistant sleeve.
Embodiment 3
As shown in figure 3, the difference is that, 8 top of feed and exhaust tube is equipped with and stretches to 7 inner cavity of inner cylinder liner with embodiment 2
Extension 81, be microgap reduced pressure sealing between 7 intracavity sidewall of extension 81 and inner cylinder liner, gap between the two is
0.008-0.012mm.81 lateral wall of extension is equipped with annular groove, is arranged with and extension 81 and inner casing in the annular groove
It covers 7 intracavity sidewalls and contacts the second sealing ring 15, the second sealing ring 15.
The top of extension 81 includes baffle 14, and baffle 14 is removably mounted on the top of extension 81 by screw,
Side on annular groove far from baffle 14 is equipped with the ring-shaped step of protrusion, and baffle 14 and ring-shaped step constitute annular groove.It should
Structure is convenient to be set in the second sealing ring 15 in annular groove when assembling equipment.
In addition, the extension 81 of feed and exhaust tube 8 stretches to the clear opening on cylinder sleeve 12 when cylinder sleeve 12 is an integral structure
18, it is microgap reduced pressure sealing between extension 81 and clear opening 18, gap between the two is 0.008-0.012mm.
Combine most preferred embodiment that the utility model is described above, but the utility model is not limited to above take off
The embodiment shown, and modification, equivalent combinations that various essence according to the present utility model carry out should be covered.
Claims (7)
1. a kind of super-high-pressure plunger pump structure, including cylinder sleeve (12) and piston rod (5), which is characterized in that in the cylinder sleeve (12)
Portion is equipped with clear opening (18), and one end of piston rod (5) is protruded into above-mentioned clear opening (18), piston rod (5) by seal assembly and
The first sealing gland (1) that the seal assembly is compressed and the cylinder sleeve (12), which are formed, to be tightly connected；Clear opening (18) it is another
Input and output material crossover sub (10) are equipped on the outside of one end, the feed and exhaust tube (8) of input and output material crossover sub (10) passes through the second sealing pressure
Lid (9) is fixed on cylinder sleeve (12), and the inner end of feed and exhaust tube (8) is formed with clear opening (18) end contacts sealing.
2. a kind of super-high-pressure plunger pump structure according to claim 1, which is characterized in that the cylinder sleeve (12) includes mutual
The inner cylinder liner (7) and outer cylinder sheath (6) being arranged, clear opening (18) setting is in the middle part of inner cylinder liner (7), the seal assembly insertion
On the inside of to inner cylinder liner (7)；The inner cylinder liner (7) is stainless steel structure, and the outer cylinder sheath (6) is high-strength structure set；Second is close
It is installed between sealed cover (9) and outer cylinder sheath (6) third gland (11), third gland (11) and seal assembly are by inner cylinder liner (7)
It is clipped in the middle.
3. a kind of super-high-pressure plunger pump structure according to claim 1 or 2, which is characterized in that the feed and exhaust tube (8)
It is between inner end and clear opening (18) end conical surface sealing structure (17).
4. a kind of super-high-pressure plunger pump structure according to claim 3, which is characterized in that the seal assembly includes along remote
Floating wear-resistant sleeve (2), high-pressure seal ring (3) and the wear-resistant sleeve (4) that direction from the first sealing gland (1) is sequentially arranged float
The outer diameter of wear-resistant sleeve (2), high-pressure seal ring (3) and wear-resistant sleeve (4) three is sequentially reduced, and the first sealing gland (1) is pressed in floating
Wear-resistant sleeve (2) side, the inner sidewall of the clear opening (18) is equipped with clamps floating wear-resistant sleeve with the first sealing gland (1) jointly
(2), the limit hierarchic structure of high-pressure seal ring (3) and wear-resistant sleeve (4) three.
5. a kind of super-high-pressure plunger pump structure according to claim 1 or 4, which is characterized in that the feed and exhaust tube (8) with
It is threadedly coupled between second sealing gland (9) by being equipped with the nut (13) of internal and external screw thread.
6. a kind of super-high-pressure plunger pump structure according to claim 1 or 4, which is characterized in that the feed and exhaust tube (8)
Inner end is equipped with the extension (81) for stretching to clear opening (18), close for microgap decompression between extension (81) and clear opening (18)
Envelope, gap between the two are 0.008-0.012mm；Extension (81) lateral wall is equipped with annular groove, in the annular groove
It is arranged with and contacts the second sealing ring (15) with extension (81) and clear opening (18).
7. a kind of super-high-pressure plunger pump structure according to claim 6, which is characterized in that the top of the extension (81)
Including dismountable baffle (14), the side far from baffle (14) is equipped with the ring-shaped step of protrusion, the baffle on annular groove
(14) annular groove is constituted with ring-shaped step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249775.9U CN209261806U (en) | 2018-12-29 | 2018-12-29 | A kind of super-high-pressure plunger pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249775.9U CN209261806U (en) | 2018-12-29 | 2018-12-29 | A kind of super-high-pressure plunger pump structure |
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| Publication Number | Publication Date |
|---|---|
| CN209261806U true CN209261806U (en) | 2019-08-16 |
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ID=67565905
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822249775.9U Active CN209261806U (en) | 2018-12-29 | 2018-12-29 | A kind of super-high-pressure plunger pump structure |
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| CN (1) | CN209261806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488586A (en) * | 2018-12-29 | 2019-03-19 | 广州聚能纳米生物科技股份有限公司 | A kind of super-high-pressure plunger pump structure |
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2018
- 2018-12-29 CN CN201822249775.9U patent/CN209261806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488586A (en) * | 2018-12-29 | 2019-03-19 | 广州聚能纳米生物科技股份有限公司 | A kind of super-high-pressure plunger pump structure |
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