CN103216438B - A kind of Novel plunger pump crosshead box body - Google Patents
A kind of Novel plunger pump crosshead box body Download PDFInfo
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- CN103216438B CN103216438B CN201310042292.0A CN201310042292A CN103216438B CN 103216438 B CN103216438 B CN 103216438B CN 201310042292 A CN201310042292 A CN 201310042292A CN 103216438 B CN103216438 B CN 103216438B
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Abstract
Relate to a kind of Novel plunger pump crosshead box body of casing, the front-end face of casing and ear end face are designed to 3 large through-holes divided equally, 8 through holes, 8 small through hole separately, the seal groove of annular is had outside 3 large through-holes, respectively there is an oil leak hole upper and lower of each large through-hole, and respectively there are several screws divided equally on the upper-end surface of casing and ground.The present invention is cast structure, avoid because weld defects causes the risk of scrapping, and can use and with pull bar, pump head body, crosshead casing and crankcase body can be connected into entirety by turn-over, 3 large through-hole seat crosshead slideways, selflubricating and wear resistance are all better than Cuprum alloy sliding sleeve, the defect of not press-offing, its long service life, processing, assembling, easy to maintenance.
Description
Technical field
The present invention relates to casing.
Background technique
In recent years, due to the increase day by day of ultra-deep layer or ultra-large fracturing work amount, more and more urgent to the demand of the large-scale complete pressure break equipment adapted with it.Pressure break pump truck is the nucleus equipment of Frac unit, and plunger pump is as the critical component of pressure break pump truck, and its performance and technical merit have decisive influence to the overall operation ability that pressure break pump truck is equipped down to large-scale complete pressure break.Plunger pump crosshead casing is the important component part of power end of plunger pump, its one end is connected with crankcase body, the other end connects fluid end pump head body by pull bar, its Main Function be inner chamber cylindrical hole as the reciprocating slideway of crosshead, realize being crosshead and the stable to-and-fro motion of plunger by the convert rotational motion of bent axle.Plunger pump crosshead casing mostly adopts the welded steel pump shell structure be integrated in one with crankcase body both at home and abroad at present, steel cylinder sleeve welds the space be arranged between pump case dunnage, then cold edge Cuprum alloy crosshead sliding sleeve in cylinder sleeve, the fine finishing together with pump case of crosshead sliding sleeve endoporus, the feature of this integrated morphology pump case is compact structure, crosshead sliding sleeve use certain hour wearing and tearing overproof after can boring to fall to reset reprocessing reparation, shortcoming is: 1. because crosshead casing and the integrated pump case welded structure that causes of crankcase body complicated, cylinder sleeve, the part such as end plate and stiffening plate welds not easily welding, and cause whole pump case build huge, difficulty of processing is large, 2. cold edge crosshead sliding sleeve technology controlling and process is bad, and crosshead sliding sleeve easily loosens and even comes off, thus causes car load to shut down, and it is multiple that pump case returns repair in shop, and incur loss through delay job scheduling, and Cu alloy material price is more expensive, pump case manufacture cost is higher, 3. cylinder sleeve welds with pump case end plate, and end plate place each pull bar screw is stressed large and uneven, and end plate weld joint place easily cracks and causes whole pump case to scrap.
Summary of the invention
The object of the present invention is to provide a kind of Novel plunger pump crosshead box body, it is that a kind of structure is simple, long service life, processing, assembling and casing easy to maintenance.
Technological scheme of the present invention realizes as follows:
The present invention is a crosshead casing, its crosshead casing is provided with the equally distributed large through-hole that 3 run through front-end face and ear end face, its large through-hole is the reciprocating slideway of crosshead, front-end face and ear end face respectively have an annular seal groove outward at 3 large through-holes divided equally, for installing seal ring, seal.What front-end face and ear end face also ran through has 8 through holes and 8 small through hole, and 8 through holes are used for the installation of pull bar, and 8 small through hole are used for bolt and crosshead casing and crankcase body are installed fixing.Respectively there is an oil leak hole upper and lower of each large through-hole, the upper and lower of each large through-hole respectively has one to lubricate oil inlet hole, only use oil leak hole below and lubrication oil inlet hole above during installation, oil leak hole above and lubrication oil inlet hole threaded insert below block; Oil leak hole above and lubrication oil inlet hole are below then for turn-over uses; There is multiple screw the upper-end surface of its crosshead casing and bottom surface, for installing fixing training hopper and return line.
Good effect of the present invention is:
Crosshead casing is founding type structure, and be convenient to batch production, cost is lower.Pump head body, crosshead casing and crankcase body can link into an integrated entity with pull bar by 8 through holes, structure is simple, and easy for installation, crosshead cabinets cavity through hole is as crosshead slideway, selflubricating and wear resistance are all better than Cuprum alloy sliding sleeve, and do not have the defect of press-offing.Simultaneously the crosshead casing of cast structure avoids because weld defects causes pump case to ftracture the risk of scrapping.Crosshead casing is full symmetric structure, does not need to scrap after the wearing and tearing of interior cylindrical hole side, and turnable continues to use, long service life, is also convenient to processing, assembling and maintenance.
Accompanying drawing explanation
Fig. 1 is this practical plan view;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the rear view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
See Fig. 1 and Fig. 5, the large through-hole 8 mutually run through that crosshead casing 3 front-end face and ear end face respectively have 3 to divide equally, large through-hole 8 is the reciprocating slideways of crosshead, front-end face and ear end face up and down symmetrical eight through holes 9 of mutually running through and eight small through hole, 10, eight through holes 9 for the installation of pull bar; Crosshead casing 3 is fixed on crankcase body for bolt 2 by eight small through hole 10; There is annular seal groove 11 outside of front-end face and ear end face 3 large through-holes 8 mutually run through divided equally separately, mounting O-shaped rings on annular seal groove 11, plays end face seal action.
See Fig. 2,4, near crosshead casing 3 front-end face directly over each large through-hole 8 and immediately below two places be respectively processed with an oil leak hole 12, only use oil leak hole 12 below when installing and using, oil leak hole 12 above blocks with plug screw, when turn-over uses and exchangeable use; Simultaneously in the middle part of crosshead casing 3 correct position each large through-hole 8 directly over and immediately below two places be respectively processed with lubrication oil inlet hole 13, for lubricating crosshead, lubrication oil inlet hole 13 above is only used when installing and using, lubrication oil inlet hole 13 below blocks with plug screw, when turn-over uses and exchangeable use; Ear end face is also processed with screw 15 simultaneously, for bolt, crosshead casing end plate is fixed on crosshead casing 3.
See Fig. 3, there is multiple screw 16 crosshead casing 3 upper-end surface, and the installation for Stuffing box and return line is fixed.
Claims (1)
1. a Novel plunger pump crosshead box body, it is characterized in that: crosshead casing (3) is provided with the equally distributed large through-hole (8) that 3 run through front-end face and ear end face, front-end face and ear end face respectively have an annular seal groove (11) outward 3 large through-holes (8), front-end face and ear end face also run through 8 through holes (9) and 8 small through hole (10), 8 through holes (9) and 8 small through hole (10) are symmetrical arranged up and down, respectively there is an oil leak hole (12) upper and lower of each large through-hole (8), the upper and lower of each large through-hole (8) respectively has one to lubricate oil inlet hole (13), and there is multiple screw crosshead casing upper-end surface and bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042292.0A CN103216438B (en) | 2013-02-04 | 2013-02-04 | A kind of Novel plunger pump crosshead box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042292.0A CN103216438B (en) | 2013-02-04 | 2013-02-04 | A kind of Novel plunger pump crosshead box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216438A CN103216438A (en) | 2013-07-24 |
| CN103216438B true CN103216438B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310042292.0A Active CN103216438B (en) | 2013-02-04 | 2013-02-04 | A kind of Novel plunger pump crosshead box body |
Country Status (1)
| Country | Link |
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| CN (1) | CN103216438B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194346B (en) * | 2018-02-01 | 2024-05-07 | 重庆水泵厂有限责任公司 | Compact reciprocating pump transmission case and manufacturing method thereof |
| CN111022302A (en) * | 2019-12-29 | 2020-04-17 | 陕西航天动力高科技股份有限公司 | Crosshead sliding sleeve structure for diaphragm pump and sliding sleeve box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532489A (en) * | 2009-04-08 | 2009-09-16 | 宁波凯明机器制造有限公司 | Reverse pressure oil lubrication power reciprocating pump |
| CN201372918Y (en) * | 2009-04-03 | 2009-12-30 | 中国石油集团渤海石油装备制造有限公司 | Plunger type water injection pump crosshead guide device |
| CN201606231U (en) * | 2009-12-25 | 2010-10-13 | 淮安市新盛压缩机配件有限公司 | Combined type crosshead body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1586775A3 (en) * | 2004-04-13 | 2011-11-09 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Hydraulic pump unit, hydraulic pump set and working vehicle |
-
2013
- 2013-02-04 CN CN201310042292.0A patent/CN103216438B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372918Y (en) * | 2009-04-03 | 2009-12-30 | 中国石油集团渤海石油装备制造有限公司 | Plunger type water injection pump crosshead guide device |
| CN101532489A (en) * | 2009-04-08 | 2009-09-16 | 宁波凯明机器制造有限公司 | Reverse pressure oil lubrication power reciprocating pump |
| CN201606231U (en) * | 2009-12-25 | 2010-10-13 | 淮安市新盛压缩机配件有限公司 | Combined type crosshead body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103216438A (en) | 2013-07-24 |
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Address after: 434020 Jingzhou city of Hubei province Jingzhou district four Road No. 1 Applicant after: SJ Petroleum Machinery Co., SINOPEC Address before: 434020 Jingzhou city of Hubei province Jingzhou district four Road No. 1 Applicant before: SJ Petroleum Machinery Co. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171110 Address after: 434020 No. 1 Longshan Temple Street, Jingzhou District, Jingzhou, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Four Sinopec Petroleum Machinery Co. Ltd. Address before: 434020 Jingzhou city of Hubei province Jingzhou district four Road No. 1 Patentee before: SJ Petroleum Machinery Co., SINOPEC |