CN103953538A - Cross-shaped head mechanism structure of connecting rod of fracturing pump - Google Patents
Cross-shaped head mechanism structure of connecting rod of fracturing pump Download PDFInfo
- Publication number
- CN103953538A CN103953538A CN201410145994.6A CN201410145994A CN103953538A CN 103953538 A CN103953538 A CN 103953538A CN 201410145994 A CN201410145994 A CN 201410145994A CN 103953538 A CN103953538 A CN 103953538A
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- China
- Prior art keywords
- connecting rod
- cross
- crosshead
- shaped head
- fracturing pump
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- Reciprocating Pumps (AREA)
Abstract
The invention discloses a cross-shaped head mechanism structure of a connecting rod of a fracturing pump. The cross-shaped head mechanism comprises the connecting rod, wherein the connecting rod is connected with a cross-shaped head by a shaft sleeve and a cross-shaped head pin in a sheathing manner; the width sizes of the bearing sides of the connecting rod, the cross-shaped head and the shaft sleeve are respectively more than the width sizes of the non-bearing sides; the outer diameter of the cross-shaped head pin is a cylinder. The cross-shaped head mechanism disclosed by the invention has the advantages that the area of the stressing contact surface of the cross-shaped head and the cross-shaped head pin of the connecting rod is enlarged, the reaction force span and the bending stress of the cross-shaped head pin are reduced, the bearing capability of the shaft sleeve is improved, so that the size of the cross-shaped head is reduced and the shape size and the weight of the whole fracturing pump are reduced.
Description
Technical field
The invention belongs to petroleum machinery equipment technical field, relate to a kind of fracturing pump connecting rod crosshead mechanism.
Background technique
At present, it is conventional shaft hole matching structure that fracturing pump in petroleum machinery connects pattern by connecting rod crosshead, fracturing pump is in the time of discharge stroke, the stressed maximum of power end, connecting rod bears compressive force, crosshead is born compressive force, due to the loading characteristic of connecting rod crosshead, the boundary dimension that often needs to add grand cross meets the flexural strength requirement of crosshead pin, but the profile of crosshead strengthens the increase that directly causes whole pump size increasing and weight, be unfavorable for the trend of fracturing pump lightweight compact type, impact is actual to be used.
Summary of the invention
The object of this invention is to provide a kind of fracturing pump connecting rod crosshead mechanism, solve the crosshead boundary dimension problem bigger than normal existing in prior art.
The technical solution adopted in the present invention is, a kind of fracturing pump connecting rod crosshead mechanism structure, comprise connecting rod, connecting rod is socketed by axle sleeve and crosshead pin thereof and crosshead, and the load side width dimensions of described connecting rod, crosshead, axle sleeve is all greater than nonload-bearing side width dimensions.
Fracturing pump connecting rod crosshead mechanism structure of the present invention, is further characterized in that:
Crosshead pin external diameter is cylindrical body.
The invention has the beneficial effects as follows, the area that has increased connecting rod crosshead and the stressed surface of contact of crosshead pin, has reduced crosshead pin support reaction span and flexural stress, has increased the bearing capacity of axle sleeve, thereby reduce crosshead size, alleviated fracturing pump monnolithic case size and weight.
Brief description of the drawings
Fig. 1 is the structural representation of the fracturing pump connecting rod crosshead mechanism of prior art;
Fig. 2 is the structural representation of the connecting rod 1 in existing fracturing pump connecting rod crosshead mechanism;
Fig. 3 is crosshead 2 structural representations in existing fracturing pump connecting rod crosshead mechanism;
Fig. 4 is axle sleeve 3 structural representations in existing fracturing pump connecting rod crosshead mechanism;
Fig. 5 is the structural representation of crosshead pin 4 in existing fracturing pump connecting rod crosshead mechanism;
Fig. 6 is the structural representation of fracturing pump connecting rod crosshead of the present invention mechanism;
Fig. 7 is the structural representation of the connecting rod 1 in fracturing pump connecting rod crosshead of the present invention mechanism;
Fig. 8 is crosshead 2 structural representations in fracturing pump connecting rod crosshead of the present invention mechanism;
Fig. 9 is axle sleeve 3 structural representations in fracturing pump connecting rod crosshead of the present invention mechanism;
Figure 10 is crosshead pin 4 structural representations in fracturing pump connecting rod crosshead of the present invention mechanism.
In figure, 1. connecting rod, 2. crosshead, 3. axle sleeve, 4. crosshead pin.
Embodiment
With reference to Fig. 1-Fig. 5, the structure of existing fracturing pump connecting rod crosshead mechanism is, comprises connecting rod 1, and connecting rod 1 is socketed with crosshead 2 by axle sleeve 3 and crosshead pin 4 thereof, and crosshead pin 4 is arranged in crosshead 2 pin shaft holes.Microcephaly's endoporus of connecting rod 1 is divided into load side and nonload-bearing side.The pin shaft hole of crosshead 2 is also divided into load side and nonload-bearing side.Axle sleeve 3 is arranged in the endoporus of connecting rod 1, is divided into load side and nonload-bearing side.The load side of connecting rod 1, crosshead 2, axle sleeve 3 is consistent with nonload-bearing side width.
With reference to Fig. 6-Figure 10, the structure of fracturing pump connecting rod crosshead of the present invention mechanism is, comprise equally connecting rod 1, crosshead 2, axle sleeve 3 and 4 four parts of crosshead pin, axle sleeve 3 is installed in the endoporus of connecting rod 1, crosshead pin 4 is installed in the pin shaft hole of crosshead 2, crosshead pin 4 links together connecting rod 1, axle sleeve 3 and crosshead 2, and difference is
Crosshead pin 4 external diameters are cylindrical body, and (the cylindrical step of existing structure is not set), does not exist installation direction problem, are easy to install;
The load side width dimensions of connecting rod 1, crosshead 2, axle sleeve 3 is obviously greater than nonload-bearing side width dimensions (corresponding size at least has more more than 30%), reduces as much as possible nonload-bearing side width with this, strengthens the width of load side.Strengthen the crushing strength that load side width can reduce this side, shortened support reaction span and the flexural stress of crosshead pin 4 simultaneously, obviously, under identical boundary dimension, improved bearing capacity; Under identical load, reduce stress.
Claims (2)
1. a fracturing pump connecting rod crosshead mechanism structure, it is characterized in that: comprise connecting rod (1), connecting rod (1) is by axle sleeve (3) and crosshead pin (4) thereof and crosshead (2) socket, and the load side width dimensions of described connecting rod (1), crosshead (2), axle sleeve (3) is all greater than nonload-bearing side width dimensions.
2. fracturing pump connecting rod crosshead mechanism structure according to claim 1, is characterized in that: described crosshead pin (4) external diameter is cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145994.6A CN103953538A (en) | 2014-04-11 | 2014-04-11 | Cross-shaped head mechanism structure of connecting rod of fracturing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145994.6A CN103953538A (en) | 2014-04-11 | 2014-04-11 | Cross-shaped head mechanism structure of connecting rod of fracturing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103953538A true CN103953538A (en) | 2014-07-30 |
Family
ID=51330858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410145994.6A Pending CN103953538A (en) | 2014-04-11 | 2014-04-11 | Cross-shaped head mechanism structure of connecting rod of fracturing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103953538A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385195A (en) * | 2014-09-17 | 2015-03-04 | 宝鸡石油机械有限责任公司 | Frock clamp with drilling pump cross head pin and clamping method thereof |
| CN114135459A (en) * | 2021-12-08 | 2022-03-04 | 西南石油大学 | Ultra-long stroke reciprocating pump with tension connecting rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0302851A2 (en) * | 1987-08-05 | 1989-02-08 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Reciprocating piston internal combustion engine |
| CN2152077Y (en) * | 1993-02-24 | 1994-01-05 | 上海大隆机器厂 | Single function reciprocating plunger pump |
| CN2152923Y (en) * | 1993-02-24 | 1994-01-12 | 上海大隆机器厂 | Lubricating structure for power end of plunger pump |
| CN201273251Y (en) * | 2008-09-04 | 2009-07-15 | 中国石化集团江汉石油管理局第四机械厂 | Easily detachable five-cylinder plunger pump |
| CN202194699U (en) * | 2011-07-26 | 2012-04-18 | 东风汽车有限公司 | Small-end bushing-free connecting rod of reciprocating internal combustion engine |
| CN203297049U (en) * | 2013-01-30 | 2013-11-20 | 湖北中油科昊机械制造有限公司 | Novel coal bed gas fracturing pump |
-
2014
- 2014-04-11 CN CN201410145994.6A patent/CN103953538A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0302851A2 (en) * | 1987-08-05 | 1989-02-08 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Reciprocating piston internal combustion engine |
| CN2152077Y (en) * | 1993-02-24 | 1994-01-05 | 上海大隆机器厂 | Single function reciprocating plunger pump |
| CN2152923Y (en) * | 1993-02-24 | 1994-01-12 | 上海大隆机器厂 | Lubricating structure for power end of plunger pump |
| CN201273251Y (en) * | 2008-09-04 | 2009-07-15 | 中国石化集团江汉石油管理局第四机械厂 | Easily detachable five-cylinder plunger pump |
| CN202194699U (en) * | 2011-07-26 | 2012-04-18 | 东风汽车有限公司 | Small-end bushing-free connecting rod of reciprocating internal combustion engine |
| CN203297049U (en) * | 2013-01-30 | 2013-11-20 | 湖北中油科昊机械制造有限公司 | Novel coal bed gas fracturing pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385195A (en) * | 2014-09-17 | 2015-03-04 | 宝鸡石油机械有限责任公司 | Frock clamp with drilling pump cross head pin and clamping method thereof |
| CN114135459A (en) * | 2021-12-08 | 2022-03-04 | 西南石油大学 | Ultra-long stroke reciprocating pump with tension connecting rod |
| CN114135459B (en) * | 2021-12-08 | 2024-01-12 | 西南石油大学 | Ultra-long stroke reciprocating pump with connecting rod pulled |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140730 |