CN219865454U - Anti-sticking formula fracturing pump fluid end capping device - Google Patents
Anti-sticking formula fracturing pump fluid end capping device Download PDFInfo
- Publication number
- CN219865454U CN219865454U CN202320415636.7U CN202320415636U CN219865454U CN 219865454 U CN219865454 U CN 219865454U CN 202320415636 U CN202320415636 U CN 202320415636U CN 219865454 U CN219865454 U CN 219865454U
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- CN
- China
- Prior art keywords
- outer hoop
- expansion sleeve
- sleeve
- thread
- fracturing pump
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Links
- 239000012530 fluid Substances 0.000 title claims description 12
- 210000004907 gland Anatomy 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to the technical field of fracturing pumps, in particular to an anti-sticking type hydraulic end gland device of a fracturing pump, which is characterized in that a pump head gland for sealing is arranged on the lower side of a stud, and the expansion sleeve is lifted and put to drive the outer hoop to shrink or expand so as to realize the connection or the disassembly with a valve box cavity; the outer side of the outer hoop is provided with a thread groove matched with the valve box cavity, so that the connection between the outer hoop and the cavity is tighter under the condition that the original valve box cavity structure is not changed, and the sealing performance is good.
Description
Technical Field
The utility model relates to the technical field of fracturing pumps, in particular to an anti-sticking type hydraulic end capping device of a fracturing pump.
Background
The fracturing pump is used as a core component of the fracturing complete equipment, and the performance of the fracturing pump directly influences the working performance of the whole fracturing equipment. At present, the pump head body suction gland and the discharge gland of the fracturing pump are fixed by the screw-thread type connecting gland, and the screw-thread type connecting gland and the pump head body are connected in a screw-thread type, so that the screw-thread type connecting gland can be stuck or blocked due to ageing or rust under the condition of long-time use, and the screw-thread type connecting gland is difficult to detach.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an anti-sticking type hydraulic end gland device of a fracturing pump.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the hydraulic end gland device of the anti-sticking fracturing pump comprises a thread bush, wherein the lower side of the thread bush is in threaded connection with a bolt; an expansion sleeve is arranged on the outer periphery of the thread sleeve; the diameter of the expansion sleeve is gradually increased from bottom to top; an outer hoop is arranged on the outer periphery of the expansion sleeve, and the inner side shape of the outer hoop is matched with the shape of the expansion sleeve; the expansion sleeve can be lifted up or lowered down relative to the outer hoop, so that the outer hoop can be expanded or contracted.
Further, the outer hoop consists of a plurality of outer hoop units with the same section structure, and the outer hoop units are connected through connecting pieces; the cross sections of the outer hoop units are arc-shaped structures, the outer hoop units of a plurality of arc-shaped structures are distributed on the outer periphery side of the expansion sleeve in a circular array mode, and gaps are reserved between the adjacent outer hoop units, so that the outer hoop units can be relatively close to or far away from each other in the descending or lifting state of the expansion sleeve.
Further, a pump head gland is arranged on the lower side of the bolt.
Further, the bolt is a stud, and the pump head gland is in threaded connection with the lower side of the stud.
As optimization, the expansion sleeve is of a round table structure, a plurality of rings of compression inclined planes with different inclination degrees are formed on the peripheral side of the expansion sleeve, and the rings of compression inclined planes are sequentially distributed from top to bottom; the inner side of the outer hoop is provided with a connecting cavity matched with the expansion sleeve, and the connecting cavity is provided with a matching inclined plane matched with the compaction inclined plane.
Preferably, a thread groove is formed in the outer circumferential side surface of the outer hoop.
As optimization, the connecting piece is a clamp spring; the outer hoop units are arranged on the inner ring of the clamp springs in a clamping mode, and the two clamp springs are distributed on the upper side and the lower side of the outer hoop respectively.
Preferably, the thread threads on the upper side and the lower side of the stud bolt are opposite.
Preferably, the upper side of the threaded sleeve is connected with a handle through a connecting pin.
As optimization, the inside of the expansion sleeve is provided with a clamping groove, and the lower end of the thread sleeve is clamped on the clamping groove inside the thread sleeve; the top of the expansion sleeve is provided with a compression groove, the position of the outer periphery side of the thread sleeve corresponding to the compression groove is also provided with a compression groove, the compression grooves of the thread sleeve and the expansion sleeve form an annular compression groove, the annular compression groove is provided with a compression ring, and the compression ring is used for compressing the expansion sleeve on the thread sleeve.
Compared with the prior art, the utility model has the following beneficial effects: according to the anti-sticking type hydraulic end gland device of the fracturing pump, provided by the utility model, the pump head gland for sealing is arranged at the lower side of the stud, and the expansion sleeve is lifted to drive the outer hoop to shrink or expand so as to realize connection or disassembly with the cavity of the valve box, so that compared with a gland in threaded connection, the sticking or blocking phenomenon of a threaded connection surface can be avoided, and the disassembly and the installation connection are very convenient; the outer side of the outer hoop is provided with a thread groove matched with the valve box cavity, so that the connection between the outer hoop and the cavity is tighter under the condition that the original valve box cavity structure is not changed, and the sealing performance is good.
Drawings
FIG. 1 is a schematic elevational view of the outer cuff of the present device upon inflation;
FIG. 2 is a schematic cross-sectional structural view of the outer cuff of the present device when contracted;
FIG. 3 is a schematic elevational view of the outer cuff of the present device in a contracted configuration;
FIG. 4 is a schematic illustration of the outer cuff of the present device as it is contracted;
FIG. 5 is a schematic view of the mounting structure of the outer cuff of the present device when contracted;
fig. 6 is a schematic view of the mounting structure of the outer cuff of the present device upon inflation.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The hydraulic end cover pressing device of the anti-sticking fracturing pump provided by the utility model can be arranged in a suction cavity and a discharge cavity (hereinafter referred to as cavity) of a valve box to replace an original suction gland or a discharge gland which is in threaded connection with the cavity of the valve box. The hydraulic end gland device mainly comprises a thread sleeve 2, a bolt 7 is connected to the lower side of the thread sleeve 2 in a threaded mode, an expansion sleeve 5 is arranged on the outer periphery side of the thread sleeve 2, an outer hoop 6 is arranged on the outer periphery side of the expansion sleeve 5, and the outer hoop 6 is used for being connected with a cavity 10 of a valve box 9. Because the outer hoop 6 and the cavity 10 of the valve box 9 are in non-threaded connection, the adhesion phenomenon generated during threaded connection can be effectively avoided.
The inside of thread bush 2 is equipped with connecting chamber 11, and connecting chamber 11's upside is connected with handle 1 through connecting pin 3, and the top of handle 1 runs through the top of thread bush 2, and handle 1 can be removed when the fracturing pump work. In the utility model, the bolt 7 is a stud bolt, the upper end of the bolt 7 is connected with the lower side of the connecting cavity 11 in a threaded manner, the lower side of the bolt 7 is connected with the pump head gland 12 in a threaded manner, and the pump head gland 12 is directly plugged into the cavity 10 of the valve box 9 and fastened through the hydraulic end gland device. The cooperation of the threaded sleeve 2 and the bolt 7 enables the threaded sleeve 2 to be lifted or lowered relative to the cavity 10 when the handle 1 is turned.
The inside of the expansion sleeve 5 is provided with a clamping groove 13, and the lower end of the thread sleeve 2 is clamped on the clamping groove 13 inside the expansion sleeve 5. The top of the expansion sleeve 5 is provided with a compression groove, the position of the outer periphery side of the thread sleeve 2 corresponding to the compression groove is also provided with a compression groove, the compression grooves of the thread sleeve 2 and the expansion sleeve 5 form an annular compression groove 14, the annular compression groove 14 is provided with a compression ring 4, and the compression ring 4 is arranged on the outer periphery side of the thread sleeve 2 and used for compressing the expansion sleeve 5 on the thread sleeve 2.
The thread direction of the two ends of the stud can be opposite or the same, preferably with opposite thread direction, whereby the lower end of the stud remains connected to the pump head gland 12 while the upper end of the stud rotates relative to the threaded sleeve 2 when the handle 1 is turned. As an alternative embodiment, the bolt 7 may be a single-head bolt, wherein one end of the bolt 7 provided with threads is in threaded connection with the threaded sleeve 2, and the other end of the bolt 7 is fixed with the pump head gland 12.
The expansion sleeve 5 is of a structure with gradually increased diameter from bottom to top, and is of a truncated cone-shaped structure with large diameter at the upper side and small diameter at the lower side. The periphery side of the expansion sleeve 5 is provided with a plurality of rings of pressing inclined planes 15 with different inclination degrees, and the rings of pressing inclined planes 15 are sequentially distributed from top to bottom. The outer hoop 6 is sleeved on the outer peripheral side of the expansion sleeve 5, the accommodating cavity 16 matched with the expansion sleeve 5 is formed in the inner side of the outer hoop 6, and the matching inclined surface matched with the pressing inclined surface 15 is formed in the accommodating cavity 16, so that when the expansion sleeve 5 is continuously pressed down, the expansion sleeve 5 can continuously press the outer hoop 6, the outer hoop 6 is pressed on the cavity 10 of the valve box 9, and the connection between the gland device and the valve box 9 is realized. The inner side shape of the outer hoop 6 is used for providing conical guide of the expansion sleeve 5 and can effectively protect the expansion sleeve 5, so as to provide reliable support and guide for up-and-down movement of the expansion sleeve 5.
The outer circumference side of the outer hoop 6 is provided with a thread groove 17, and the traditional gland is connected in the cavity 10 of the valve box 9 through threads, so the cavity 10 of the valve box 9 is provided with the thread groove, therefore, in the utility model, the thread groove 17 of the outer hoop 6 can be matched with the thread groove in the cavity 10 of the valve box 9, extrusion type connection is realized, and the cavity 10 is sealed on the basis of not changing the structure of the cavity 10 of the original valve box 9.
In the utility model, the outer hoop 6 is composed of a plurality of outer hoop units 18 with the same section structure, the cross section of each outer hoop unit 18 is of an arc-shaped structure, the outer hoop units 18 of the arc-shaped structures are circularly arranged on the outer peripheral side of the expansion sleeve 5, gaps are reserved between the adjacent outer hoop units 18, and the outer hoop units can be relatively close to or far away from each other in the extrusion or lifting state of the expansion sleeve 5 so as to adapt to the extrusion of the outer hoop 6 when the expansion sleeve 5 is put down, or the extrusion of the outer hoop 6 is separated from the expansion sleeve 5 when the expansion sleeve 5 is lifted up.
The outer hoop units 18 are connected and relatively limited through the connecting pieces 8, so that the outer hoop units 18 can be relatively close to or far away from each other. The connecting element 8 may be of the type with elastic material, such as rubber strips. In the utility model, the connecting piece 8 is a clamp spring, the plurality of outer hoop units 18 are clamped on the inner ring of the clamp spring, and the two clamp springs are respectively distributed on the upper side and the lower side of the outer hoop 6 so as to clamp and fix the outer hoop 6, ensure that the plurality of outer hoop units 18 are orderly arranged and avoid damaging the outer hoop 6.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a antiseized knot formula fracturing pump fluid end pressure lid device which characterized in that: the device comprises a thread sleeve, wherein the lower side of the thread sleeve is in threaded connection with a bolt; an expansion sleeve is arranged on the outer periphery of the thread sleeve; the diameter of the expansion sleeve is gradually increased from bottom to top; an outer hoop is arranged on the outer periphery of the expansion sleeve, and the inner side shape of the outer hoop is matched with the shape of the expansion sleeve; the expansion sleeve can be lifted up or lowered down relative to the outer hoop, so that the outer hoop can be expanded or contracted.
2. The fluid end cap assembly of an anti-sticking fracturing pump of claim 1 wherein: the outer hoop consists of a plurality of outer hoop units with the same section structure, and the outer hoop units are connected through connecting pieces; the cross sections of the outer hoop units are arc-shaped structures, the outer hoop units of a plurality of arc-shaped structures are distributed on the outer periphery side of the expansion sleeve in a circular array mode, and gaps are reserved between the adjacent outer hoop units, so that the outer hoop units can be relatively close to or far away from each other in the descending or lifting state of the expansion sleeve.
3. The fluid end cap assembly of an anti-sticking fracturing pump of claim 1 wherein: the downside of bolt is equipped with pump head gland.
4. The anti-buckling type fracturing pump fluid end cap pressing device of claim 3, wherein: the bolt is a stud, and the pump head gland is in threaded connection with the lower side of the stud.
5. The fluid end cap assembly of an anti-sticking fracturing pump of claim 1 wherein: the expansion sleeve is of a round table structure, a plurality of rings of compression inclined planes with different inclination degrees are formed on the peripheral side of the expansion sleeve, and the rings of compression inclined planes are sequentially distributed from top to bottom; the inner side of the outer hoop is provided with a connecting cavity matched with the expansion sleeve, and the connecting cavity is provided with a matching inclined plane matched with the compaction inclined plane.
6. The anti-sticking type fracturing pump fluid end cap device according to claim 1 or 2, characterized in that: the outer circumference side of the outer hoop is provided with a thread groove.
7. The anti-buckling type fracturing pump fluid end cap pressing device of claim 2, wherein: the connecting piece is a clamp spring; the outer hoop units are arranged on the inner ring of the clamp springs in a clamping mode, and the two clamp springs are distributed on the upper side and the lower side of the outer hoop respectively.
8. The anti-buckling type fracturing pump fluid end cap pressing device of claim 4, wherein: the thread wires of the upper side and the lower side of the stud bolt are opposite.
9. The fluid end cap assembly of an anti-sticking fracturing pump of claim 1 wherein: the upper side of the thread bush is connected with a handle through a connecting pin.
10. The fluid end cap assembly of an anti-sticking fracturing pump of claim 1 wherein: the inside of the expansion sleeve is provided with a clamping groove, and the lower end of the thread sleeve is clamped on the clamping groove in the thread sleeve; the top of the expansion sleeve is provided with a compression groove, the position of the outer periphery side of the thread sleeve corresponding to the compression groove is also provided with a compression groove, the compression grooves of the thread sleeve and the expansion sleeve form an annular compression groove, the annular compression groove is provided with a compression ring, and the compression ring is used for compressing the expansion sleeve on the thread sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320415636.7U CN219865454U (en) | 2023-03-08 | 2023-03-08 | Anti-sticking formula fracturing pump fluid end capping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320415636.7U CN219865454U (en) | 2023-03-08 | 2023-03-08 | Anti-sticking formula fracturing pump fluid end capping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865454U true CN219865454U (en) | 2023-10-20 |
Family
ID=88345426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320415636.7U Active CN219865454U (en) | 2023-03-08 | 2023-03-08 | Anti-sticking formula fracturing pump fluid end capping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865454U (en) |
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2023
- 2023-03-08 CN CN202320415636.7U patent/CN219865454U/en active Active
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| GR01 | Patent grant |