CN87213982U - Safety cover for crank of oil extracting machine - Google Patents
Safety cover for crank of oil extracting machine Download PDFInfo
- Publication number
- CN87213982U CN87213982U CN 87213982 CN87213982U CN87213982U CN 87213982 U CN87213982 U CN 87213982U CN 87213982 CN87213982 CN 87213982 CN 87213982 U CN87213982 U CN 87213982U CN 87213982 U CN87213982 U CN 87213982U
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- CN
- China
- Prior art keywords
- crank
- safety cover
- safety
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a safety cover for crank of oil extracting machine used for mechanical oil production in the oilfield. The utility model adopts a crescent semicircle groove shape mechanism which is composed of a metal framework, a metal net, and an assembly part. The utility model has the advantages of simple structure, compact design, high reliability, and convenient installation. The use of the safety cover for crank can make the safety of the person and domestic animal obtain the guarantee, and the succeed performance of device maintenance, downhole operation, adjustment, normal operation can not be affected. Therefore, the safety cover for crank is an ideal crank safety protective device which is suitable for new and old oil extracting machines.
Description
The utility model is the oil pumping machine crank safety guard that is used for oil field machinery oil.It adopts crescent moon half slot shape mechanism, is mainly used in the security protection of two cranks of oil pumper when rotating to down one side of something.
Since the own oil pumper production history, crank has not all been designed and had been equipped with the crank safety device.Along with the development of petroleum industry, the problem that oil field and village intermesh is also more and more, and many rod-pumped wells just are in the place of the edge of the village and limit, village or the frequent dealing activity of people, animal.Facts have proved, because oil pumping machine crank does not have safety device, each oil field all has crank to cause the accident of personnel, domestic animal injures and deaths, in North China Oilfield, villages and small towns are more, and similar accident takes place every year, although be provided with the ecthoaeum enclosure wall around in the well site, but owing to be difficult to keep it perfect, effect is unsatisfactory.In order to be equipped with a kind of desirable crank safety device for oil pumper, the utility model has designed a kind of oil pumping machine crank safety guard.This crank shield structure is simple, compact to design, safe and reliable, easy to loading and unloading, and suitable oil pumper manufacturer wears.Use this crank guard shield, operational administrative personnel and extraneous people, animal safety are protected, and do not influence carrying out smoothly of work such as maintenance of equipment, underground work, accent ginseng, be the desirable crank safety device that a kind of new, old serial oil pumper all is suitable for.
Technical characterictic of the present utility model is:
1, this guard shield is to adopt two crescent moon half slot shape mechanisms, is contained in the gearbox mount both sides respectively, and when crank rotated to down one side of something, crank passed through from the inside groove that the guard shield opening makes progress, and has certain interval between crank and the guard shield.
2, each guard shield is formed by two parts, and there is a vertical compound section centre.
3, be used for the guard shield in new range oil pumper left side, one breach arranged with the bead apex position that crosses one another.
Accompanying drawing 1 be the oil pumping machine crank safety guard by the dress schematic diagram.
Accompanying drawing 2 is overview of oil pumping machine crank safety guard.
Be described further below in conjunction with accompanying drawing:
From accompanying drawing 1 as can be seen: oil pumping unit reduction gearbox (2) gearbox mount (3) fixed screw (4) oil pumping unit base (5) crank (6) crank-pin assembly (7) walking beam support (8) bead apex (9) is the relevant parts of oil pumper.Crank guard shield (10) is installed in the both sides of gearbox mount (3) respectively, and the fixed screw of reduction box and support (4) also is simultaneously the part by the fixed screw of dress guard shield.Pass through from the guard shield inside groove when crank (6) rotates to down one side of something, crank (6) also and between the guard shield inwall keeps certain clearance.
From accompanying drawing 2 as can be seen: the crank safety guard is formed by metal framework (18) wire lath (19) intermediate combination section (20) and by dress support (21).Wherein " S " is mounting bracket (21) and the corresponding distance of fixed screw (4)." O " is crank shaft core, and " R " is the guard shield arc radius, and " H " is the distance of crank shaft core to gearbox mount (3) end face, and " A " is the height of crank guard shield (10), and " B " is crank guard shield inside groove space thickness.Be used for new range oil pumper left side guard shield and bead apex crossover sites one breach (22) is arranged.
Concrete enforcement:
1, the selection of guard shield arc radius (R) and inside groove space thickness (B).Its crank length of the oil pumper of different model and crank-pin assembly length are also inequality, thereby the standard that " R " reaches " B " should be decided according to the oil pumper model, its principle is that " R " reaches " B " and be difficult for excessive or too small, suitably be as the criterion with crank and cover inwall gap, generally " R " is bigger 150～200 millimeters than crank maximum radius, and " B " gets final product for big 200 millimeters than crank assembly.
2, by dress.At first two parts of each guard shield are combined, and then be installed in the both sides of gearbox mount (3).Open that moderate the contact mutually in gap is principle when taking out rear crank by crank guard shield inside groove.By the guard shield that installs, both sides are vertical, lean against the outside of oil pumping unit base (5) by reduction carrier (3) side bottom.
3, dismounting.At first stop oil pumper when needing dismounting, crank is parked in the top, then take off guard shield again, it is non-detachable not shutting down, thereby is difficult for losing.
Claims (3)
1, a kind of oil pumping machine crank safety device is characterized in that semicircle framework (18) and protective screening (19) constitute its crescent moon half slot shape structure.
2, protector according to claim 1 is characterized in that half slot oblong openings one side has by dress support (21).
3, protector according to claim 1 has a vertical compound section (20) in the middle of it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213982 CN87213982U (en) | 1987-09-28 | 1987-09-28 | Safety cover for crank of oil extracting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213982 CN87213982U (en) | 1987-09-28 | 1987-09-28 | Safety cover for crank of oil extracting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213982U true CN87213982U (en) | 1988-06-15 |
Family
ID=4828387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213982 Withdrawn CN87213982U (en) | 1987-09-28 | 1987-09-28 | Safety cover for crank of oil extracting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734604A (en) * | 2012-04-27 | 2012-10-17 | 天津机辆轨道交通装备有限责任公司 | Intelligent intermission bailing type beam pumping unit outer cover lifting hole and rain-proof device |
-
1987
- 1987-09-28 CN CN 87213982 patent/CN87213982U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734604A (en) * | 2012-04-27 | 2012-10-17 | 天津机辆轨道交通装备有限责任公司 | Intelligent intermission bailing type beam pumping unit outer cover lifting hole and rain-proof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |