CN204299490U - A kind of universal Anti-drop centralizer - Google Patents
A kind of universal Anti-drop centralizer Download PDFInfo
- Publication number
- CN204299490U CN204299490U CN201420775686.7U CN201420775686U CN204299490U CN 204299490 U CN204299490 U CN 204299490U CN 201420775686 U CN201420775686 U CN 201420775686U CN 204299490 U CN204299490 U CN 204299490U
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- CN
- China
- Prior art keywords
- main body
- dropping device
- rolling wheel
- centralizer
- device main
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- Expired - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 241000239290 Araneae Species 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A kind of universal Anti-drop centralizer, together with anti-dropping device main body and rolling wheel centralizer main body two unit Series; Anti-dropping device main body is made up of top connection, stop plug screw, adjusting bolt, holding screw, ball cup, coupling sleeve and slip spider, and rolling wheel centralizer main body is made up of righting rod, roller and bearing pin; Righting rod bulb one end in rolling wheel centralizer main body, is inserted in anti-dropping device main body, is flexibly connected with ball cup and slip spider, and rolling wheel centralizer main body can be rotated arbitrarily relative to anti-dropping device main body.When underground work, righting is carried out by 4 staggered pair of rollers sucker rods at 45 ° in rolling wheel centralizer main body, again by the rotary motion relative to anti-dropping device main body, prevent the thread connection place of each component on sucker rod from getting loose, thus possess the function of oil pumping rod centering device and anti-dropping device simultaneously.And have functional reliability high, consume metal material few, product cost price is low and be convenient to advantages such as installing and using.
Description
Art
The utility model relates to petroleum machinery, Underwell oil production tool: the research and development of products of Anti-drop centralizer.
Background technology
At present, domestic and international most enterprise, all at different, the independent of each other downhole tool product of these two kinds of functions of production and sales " drop-off preventer for sucker rod " and " oil pumping rod centering device "; When these two kinds of products are simultaneously for a bite down-hole, there is the part connected with sucker rod at two ends, inevitably will consume many metal material and machining expense, turn increase the risk that thread connection place gets loose and the trouble of installing connection simultaneously.The Anti-drop centralizer patented product that " drop-off preventer for sucker rod " and " oil pumping rod centering device " combines as a whole by the production and sales of domestic Ye You only a few enterprise, but all adopt the sliding sleeve righting part using helicla flute as oil channel, although there is local with spiral fluted sliding sleeve righting part to scrape cured function, but its circulation area is little, flow resistance large, directly has influence on oil pumper well yield and energy consumption.
Summary of the invention
The purpose of this utility model is to provide one to possess the function of " drop-off preventer for sucker rod " and " oil pumping rod centering device " simultaneously, and circulation area is large, affects oil well output and the little Anti-drop centralizer new product of energy consumption.
Unique distinction of the present utility model is: together with anti-dropping device main body and rolling wheel centralizer main body two unit Series; Anti-dropping device main body is made up of top connection, stop plug screw, adjusting bolt, holding screw, ball cup, coupling sleeve and slip spider, and rolling wheel centralizer main body is made up of righting rod, roller and bearing pin; Righting rod bulb one end in rolling wheel centralizer main body, is inserted in anti-dropping device main body, is flexibly connected with ball cup and slip spider, and rolling wheel centralizer main body can be rotated arbitrarily relative to anti-dropping device main body.
Due to the utility model decrease originally use sucker rod " anti-dropping device " and " centralizer " two kinds of instruments simultaneously time and the union end of sucker rod, decrease consumption and the machining amount of metal material, reduce production and use cost, and more convenient oil field client installs and uses.Centralizer main body is by the rotation of self, the radial rotary moment produced when directly can eliminate sucker rod work, thus prevent the thread connection place of each component on sucker rod from getting loose phenomenon, there is the function of " drop-off preventer for sucker rod " and " oil pumping rod centering device " two kinds of instruments.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model general structure band broken section.
Fig. 2 is the A-A place cross-sectional schematic of four rolling axial distribution position in display Fig. 1.
Part name shown in number in the figure is as follows:
1, anti-dropping device main body, 1-1, top connection, 1-2, stop plug screw, 1-3, adjusting bolt, 1-4, holding screw, 1-5, ball cup, 1-6, coupling sleeve, 1-7, slip spider, 2, rolling wheel centralizer main body, 2-1, righting rod, 2-2, roller, 2-3, bearing pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
In Fig. 1, the utility model is formed by anti-dropping device main body (1) and rolling wheel centralizer main body (2) two unit Series, makes it the function simultaneously possessing " drop-off preventer for sucker rod " and " oil pumping rod centering device " two kinds of instruments.Wherein: anti-dropping device main body (1) is made up of top connection (1-1), stop plug screw (1-2), adjusting bolt (1-3), holding screw (1-4), ball cup (1-5), coupling sleeve (1-6) and slip spider (1-7).There is the screwed hole that a diameter is larger the upper end of top connection (1-1), for connecting sucker rod; The screwed hole that mid diameter is less, is used for installing stop plug screw (1-2) and adjusting bolt (1-3); Lower end is the hollow stud connected with coupling sleeve (1-6), and ball cup (1-5) is housed in cylindrical hole smooth in hollow stud.The lower end arc surface of ball cup (1-5) and the bulb top contact of righting rod (2-1), and by stop plug screw (1-2), adjusting bolt (1-3), the free gap of adjusting ball head seat (1-5).In rolling wheel centralizer main body (2), stop plug screw (1-2) is hollow tube coupling, and excircle is processed with screw thread, and lower end is the anchor ring vertical with excircle, the anchor ring of upper end is cut the groove driven.Coupling sleeve (1-6) is close with the external diameter of top connection (1-1), the internal thread hole of coupling sleeve (1-6) upper end docks with the lower end hollow stud of top connection (1-1) spells tightly, locks anticreep with holding screw (1-4); The shoulder hole of coupling sleeve (1-6) lower end is built with slip spider (1-7).Slip spider (1-7) is the shaft sleeve parts of two full symmetrics cut open along axis, and the upper end of its centre bore is processed with circular arc chamfering, below the bulb of the teamed righting rod in both sides (2-1), is formed and is flexibly connected; Its Excircle machining has one-level round platform rank, coordinates with the shoulder hole of coupling sleeve (1-6) lower end, stops slip spider (1-7) and righting rod (2-1) bulb be clipped in wherein to skid off from coupling sleeve (1-6).
In Fig. 1 and Fig. 2, rolling wheel centralizer main body (2) is made up of righting rod (2-1), roller (2-2) and bearing pin (2-3) three kinds of parts.In rolling wheel centralizer main body (2), the bulb that diameter is greater than its neck is processed in one end of righting rod (2-1), and the other end is processed into the screw head with the shaft shoulder; On the middle isodiametric body of rod, equidistant be processed with 4 be symmetrical in axis run through elongated slot and 4 through holes crossing with elongated slot sidewall central vertical.On righting rod (2-1), 4 run through in elongated slot roller (2-2) are all housed, and bearing pin (2-3) is all housed in 4 through holes; The center line of 4 rollers (2-2) and the axis of 4 bearing pins (2-3), at 45 ° staggered at the axis projection of righting rod (2-1).The bulb of righting rod (2-1), is connected with anti-dropping device main body (1); With the screw head of the shaft shoulder, connect with the sucker rod of below; The shaft shoulder is relatively processed with two planes, to load and unload with spanner clip; 4 rollers (2-2) in bar, engineering plastics are all adopted to make, its diameter is greater than the diameter of righting rod (2-1) and anti-dropping device main body (1), freely can rotate relative to righting rod (2-1) and bearing pin (2-3), and contact from four direction with tube inner wall, carry out supporting and righting.
Claims (4)
1. a universal Anti-drop centralizer, is characterized in that: by anti-dropping device main body (1) and rolling wheel centralizer main body (2) two unit Series together; Anti-dropping device main body (1) is made up of top connection (1-1), stop plug screw (1-2), adjusting bolt (1-3), holding screw (1-4), ball cup (1-5), coupling sleeve (1-6) and slip spider (1-7), and rolling wheel centralizer main body (2) is made up of righting rod (2-1), roller (2-2) and bearing pin (2-3); Righting rod (2-1) bulb one end in rolling wheel centralizer main body (2), be inserted in anti-dropping device main body (1), be flexibly connected with ball cup (1-5) and slip spider (1-7), rolling wheel centralizer main body (2) can be rotated arbitrarily relative to anti-dropping device main body (1).
2. universal Anti-drop centralizer according to claim 1, it is characterized in that: in anti-dropping device main body (1), stop plug screw (1-2) is hollow tube coupling, excircle is processed with screw thread, lower end is the anchor ring vertical with excircle, the anchor ring of upper end is cut the groove driven.
3. universal Anti-drop centralizer according to claim 1, is characterized in that: in rolling wheel centralizer main body (2), and the bulb that diameter is greater than its neck is processed in one end of righting rod (2-1), and the other end is processed into the screw head with the shaft shoulder; On the middle isodiametric body of rod, equidistant be processed with 4 be symmetrical in axis run through elongated slot and 4 through holes crossing with elongated slot sidewall central vertical.
4. the universal Anti-drop centralizer according to claim 1 or 3, is characterized in that: 4 on righting rod (2-1) run through in elongated slot roller (2-2) is all housed, and bearing pin (2-3) is all housed in 4 through holes; The center line of 4 rollers (2-2) and the axis of 4 bearing pins (2-3), at 45 ° staggered at the axis projection of righting rod (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775686.7U CN204299490U (en) | 2014-12-04 | 2014-12-04 | A kind of universal Anti-drop centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775686.7U CN204299490U (en) | 2014-12-04 | 2014-12-04 | A kind of universal Anti-drop centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299490U true CN204299490U (en) | 2015-04-29 |
Family
ID=53105036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420775686.7U Expired - Fee Related CN204299490U (en) | 2014-12-04 | 2014-12-04 | A kind of universal Anti-drop centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299490U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735915A (en) * | 2016-04-29 | 2016-07-06 | 天津立林石油机械有限公司 | Double-antidrop petal universal shaft |
| CN109505582A (en) * | 2018-11-30 | 2019-03-22 | 四川圣诺油气工程技术服务有限公司 | A kind of idler wheel flexible nipple |
| CN116263101A (en) * | 2021-12-15 | 2023-06-16 | 中国石油天然气集团有限公司 | Method for reducing friction of underground instrument string |
-
2014
- 2014-12-04 CN CN201420775686.7U patent/CN204299490U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735915A (en) * | 2016-04-29 | 2016-07-06 | 天津立林石油机械有限公司 | Double-antidrop petal universal shaft |
| CN109505582A (en) * | 2018-11-30 | 2019-03-22 | 四川圣诺油气工程技术服务有限公司 | A kind of idler wheel flexible nipple |
| CN116263101A (en) * | 2021-12-15 | 2023-06-16 | 中国石油天然气集团有限公司 | Method for reducing friction of underground instrument string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20201204 |