CN202091175U - Piston type high-pressure reciprocating pump - Google Patents
Piston type high-pressure reciprocating pump Download PDFInfo
- Publication number
- CN202091175U CN202091175U CN2011201654832U CN201120165483U CN202091175U CN 202091175 U CN202091175 U CN 202091175U CN 2011201654832 U CN2011201654832 U CN 2011201654832U CN 201120165483 U CN201120165483 U CN 201120165483U CN 202091175 U CN202091175 U CN 202091175U
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- China
- Prior art keywords
- piston
- cylinder sleeve
- reciprocating pump
- piston rod
- type high
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- Expired - Fee Related
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Abstract
The utility model discloses a piston type high-pressure reciprocating pump, which comprises a cylinder sleeve coaxially installed on a machine frame. A piston rod is arranged in an axis hole of the cylinder sleeve, one end of the piston rod extends outward to be connected with a middle pull rod of a drill pump, and a piston is installed at the other end of the piston rod. The piston is tightly pressed on an end head of the piston rod through a self-locking nut and comprises a piston core and a seal rubber ring, an inner spray nozzle is arranged in the axis hole of the cylinder sleeve, and an outer spray nozzle is arranged in a cavity between the outer wall of the cylinder sleeve and the inner wall of the machine frame. By adopting the piston type high-pressure reciprocating pump, heat generated by reciprocating motion of the piston in the cylinder sleeve is not only taken away by cooling liquid on the inner surface of the cylinder sleeve, but also taken away by cooling liquid on the outer surface of the cylinder sleeve, thereby remarkably reducing operating temperature of the piston of the cylinder sleeve and prolonging service life. The piston type high-pressure reciprocating pump is simple in structure, convenient to operate, low in manufacturing cost and easy to replace easily-damaged parts, and operational condition requirements of the high-pressure reciprocating pump are met simultaneously.
Description
Technical field
The utility model belongs to the power equipment technical field, relates to a kind of piston type high pressure reciprocating pump.
Background technique
Usually working pressure is called high pressure reciprocating pump greater than the reciprocating pump of 35MPa, the seal style of present high pressure reciprocating pump adopts the plunger disc root architecture, this structure has following shortcoming: the one, and the plunger packing is to be assembled in the cylinder sleeve bore in a certain order by one group of multi-form seal ring, realize the high pressure sealing of fluid end, when one of them seal ring damages in early days, be easy to cause the inefficacy of other seal ring, and then make high-pressure slurry sting bad cylinder sleeve and/or plunger.Therefore any one link of plunger disc root architecture goes wrong, and all with termination of pumping, influence is operation normally.The present plunger disc root architecture life-span has only 30-40 hour, causes frequent termination of pumping, when especially changing associated part, has strengthened operating cost.Under drilling condition, the plunger disc root architecture lost efficacy easily, the rate of fault height, and the life-span is low, and user cost strengthens; Compare with the cylinder sleeve piston structure simultaneously, change inconvenience, waste time and energy.The 2nd, complex structure, manufacture cost strengthens, and the plunger disc root architecture also has parts such as distribution oil ring, lining and plunger except that combined type packing ring, complex structure, the processing to component simultaneously proposes high requirement, and manufacture cost strengthens.
Summary of the invention
The purpose of this utility model provides a kind of piston type high pressure reciprocating pump, solved to exist easily in the existing plunger disc root architecture to lose efficacy, and the rate of fault height, the life-span is low; Complex structure, manufacture cost are big; Change inconvenience, the problem that wastes time and energy.
The technological scheme that the utility model adopted is, a kind of piston type high pressure reciprocating pump, be included in and be coaxially installed with cylinder sleeve on the frame, be provided with piston rod in the axle center hole of cylinder sleeve, one end of piston rod outwards is connected with the intermediate draw bar of drilling pump, and the other end of piston rod is equipped with piston, and piston is pressed on the termination of piston rod by self-locking nut, piston comprises piston core and O-ring seal composition, is provided with inner nozzle in the axle center hole of cylinder sleeve; Be provided with outer nozzle in the cavity between outer wall of cylinder jachet and the frame inner wall.
The beneficial effects of the utility model are that the heat that piston to-and-fro motion in cylinder sleeve is produced is not only taken away by the cooling liquid of inner surface of cylinder liner, and is taken away by the cooling liquid of liner backs, reduces the operating temperature of cylinder sleeve piston significantly, has improved working life; Simple in structure, easy to operate, good airproof performance, rate of fault is low, low cost of manufacture, it is easy to change easily damaged parts, has satisfied the operating conditions requirement of high pressure reciprocating pump.
Description of drawings
Fig. 1 is the structural representation of the utility model piston type high pressure reciprocating pump.
Among the figure, 1. piston rod, 2. piston, 3. self-locking nut, 4. cylinder sleeve, 5. seal ring, 6. inner nozzle, 7. outer nozzle, 8. intermediate draw bar, 9. frame, 10. piston core, 11. O-ring seals.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As Fig. 1, the structure of the utility model piston type high pressure reciprocating pump is, be included in and be coaxially installed with cylinder sleeve 4 on the frame 9, be provided with piston rod 1 in the axle center hole of cylinder sleeve 4, one end of piston rod 1 outwards is connected with the intermediate draw bar 8 of drilling pump, and the other end of piston rod 1 is equipped with piston 2, and piston 2 is pressed on the termination of piston rod 1 by self-locking nut 3, piston 2 comprises piston core 10 and O-ring seal 11 compositions, is provided with inner nozzle 6 in the axle center hole of cylinder sleeve 4; Be provided with outer nozzle 7 in the cavity between cylinder sleeve 4 outer walls and frame 9 inwalls.
Also be provided with seal ring 5 at piston core 10 with piston rod 1 wrapping angle place, be used to realize the sealing between piston core 10 and the piston rod 1; O-ring seal 11 is used to realize the sealing between piston 2 and the cylinder sleeve 4.During to-and-fro motion, cooling liquid is transported to inner nozzle 6 and outer nozzle 7 by centrifugal pump to piston in cylinder sleeve 4, and inner nozzle 6 subtend cylinder sleeves 4 internal surfaces wash, cool off, and outer nozzle 7 subtend cylinder sleeves 4 outer surfaces wash, cool off.Like this, piston 2 heat that to-and-fro motion produced in cylinder sleeve 4 is not only taken away by the cooling liquid of cylinder sleeve 4 internal surfaces, and taken away by the cooling liquid of cylinder sleeve 4 outer surfaces, reduced the operating temperature of cylinder sleeve 4 and piston 2 significantly, improved the working life of piston 2 and cylinder sleeve 4.
Piston type high pressure reciprocating pump of the present utility model adopts cylinder sleeve piston structure and unique flushing type of cooling, the sealing life of having improved reciprocating pump under pressure 35MPa-70MPa operating mode.
Claims (2)
1. piston type high pressure reciprocating pump, its characteristics are: be included in and be coaxially installed with cylinder sleeve (4) on the frame (9), be provided with piston rod (1) in the axle center hole of cylinder sleeve (4), one end of piston rod (1) outwards is connected with the intermediate draw bar (8) of drilling pump, the other end of piston rod (1) is equipped with piston (2), piston (2) is pressed on the termination of piston rod (1) by self-locking nut (3), piston (2) comprises piston core (10) and O-ring seal (11) composition, is provided with inner nozzle (6) in the axle center hole of cylinder sleeve (4); Be provided with outer nozzle (7) in the cavity between cylinder sleeve (4) outer wall and frame (9) inwall.
2. piston type high pressure reciprocating pump according to claim 1, its characteristics are: be provided with seal ring (5) at piston core (10) with piston rod (1) wrapping angle place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201654832U CN202091175U (en) | 2011-05-23 | 2011-05-23 | Piston type high-pressure reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201654832U CN202091175U (en) | 2011-05-23 | 2011-05-23 | Piston type high-pressure reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091175U true CN202091175U (en) | 2011-12-28 |
Family
ID=45366244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201654832U Expired - Fee Related CN202091175U (en) | 2011-05-23 | 2011-05-23 | Piston type high-pressure reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091175U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562571A (en) * | 2012-03-30 | 2012-07-11 | 四川宏华石油设备有限公司 | Cooling device for drilling pump |
| CN106194638A (en) * | 2016-08-30 | 2016-12-07 | 吉林光洋自动化液压系统有限公司 | Electromagnetic Control plunger displacement pump |
| CN109026663A (en) * | 2018-09-27 | 2018-12-18 | 兰州理工大学 | A kind of active self-cooling type hydraulic planger pump |
-
2011
- 2011-05-23 CN CN2011201654832U patent/CN202091175U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562571A (en) * | 2012-03-30 | 2012-07-11 | 四川宏华石油设备有限公司 | Cooling device for drilling pump |
| CN102562571B (en) * | 2012-03-30 | 2015-03-04 | 四川宏华石油设备有限公司 | Cooling device for drilling pump |
| CN106194638A (en) * | 2016-08-30 | 2016-12-07 | 吉林光洋自动化液压系统有限公司 | Electromagnetic Control plunger displacement pump |
| CN109026663A (en) * | 2018-09-27 | 2018-12-18 | 兰州理工大学 | A kind of active self-cooling type hydraulic planger pump |
| CN109026663B (en) * | 2018-09-27 | 2019-07-30 | 兰州理工大学 | A kind of active self-cooling type hydraulic planger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140523 |