CN203271626U - Device for preventing polish rod from falling from pumping unit - Google Patents
Device for preventing polish rod from falling from pumping unit Download PDFInfo
- Publication number
- CN203271626U CN203271626U CN 201320160450 CN201320160450U CN203271626U CN 203271626 U CN203271626 U CN 203271626U CN 201320160450 CN201320160450 CN 201320160450 CN 201320160450 U CN201320160450 U CN 201320160450U CN 203271626 U CN203271626 U CN 203271626U
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- China
- Prior art keywords
- cover plate
- dropping
- polished rod
- hand
- falling device
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- 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.)
- Expired - Fee Related
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Abstract
A device for preventing a polish rod from falling from a pumping unit adopts a beam hanger assistive technology for an oil field beam-pumping unit, and solves the problem that after the polish rod is broken and falls, a well cannot produce oil normally. The device is formed by connecting an anti-falling device, right-hand and left-hand screws, a cylindrical support, cylindrical clamping teeth, an anti-falling device cover plate and cover plate bolts, wherein the cylindrical support is located at the upper part of the anti-falling device; the cylindrical clamping teeth are located in the cylindrical support and contacted with the polish rod; the anti-falling device is connected with the beam hanger through the right-hand and left-hand screws; a U-shaped groove is firmed in the center of the anti-falling device; the anti-falling device cover plate is fixed in the U-shaped groove in the center of the anti-falling device through the cover plate bolts; and right-hand and left-hand screw threads are formed at two ends of each of the right-hand and left-hand screws and connected with internal threads corresponding to the anti-falling device and the beam hanger respectively.
Description
Technical field: the utility model relates to the polished rod eye ancillary technique of oil field beam pumping unit, and especially a kind of oil pumper is prevented the polished rod dropping device.
Background technology: at present in pumpingh well long-term production process, often occur that polished rod drops and the phenomenon that enters well, analyzing its reason is mainly due to the fluctuating load of oil pumper and the metal fatigue of polished rod, makes polished rod cause that after tired and damage disconnected taking off occurs stress concentrated (square clamp place).The series of problems that causes in order to solve light rod-broken has taked to beat on polished rod standby card early stage, like this polished rod stress raiser (clamp place, polished rod eye top) break take off after, do not fall in pit shaft for card will be sitting on packing box; But after light rod-broken, oil pumper still dallies, and causes that because of uneven burning out the motor accident increases.Also need change polished rod by crane simultaneously, so not only time-consuming and effort; Cause larger workload to daily management, also increased cost consumption simultaneously.
Summary of the invention: the purpose of this utility model is to provide simple in structure, easy to operate, reliable, practical a kind of oil pumper is prevented the polished rod dropping device, it has solved the situation that after the light rod-broken, well can not normally be produced, the purpose of this utility model is achieved in that it is to be formed by connecting by dropping against device, positive left-hand thread screw, cartridge type bearing, cartridge type card tooth, dropping against device cover plate, cover plate bolt; The cartridge type bearing is positioned at dropping against device top, and cartridge type card tooth is located in the cartridge type bearing, and contacts with polished rod; Dropping against device is connected with polished rod eye by positive left-hand thread screw.U-shaped groove is arranged on the dropping against device center, and the dropping against device cover plate is fixed in the U-shaped groove of dropping against device center by cover plate bolt.Positive left-hand thread screw two ends are provided with positive and negative screw thread, are connected with the dropping against device internal thread corresponding with polished rod eye respectively.
Advantage of the present utility model: easy to process, strong adaptability, be convenient to install; Simple in structure, easy to operate, use flexibly; Reduced environment pollution; Extend the application life of polished rod, reduced the input of cost; Reduced staff's labour intensity; Reduced and stopped the well time, improved rate when driving a well, guaranteed to produce on crude oil.
Description of drawings: Fig. 1 is the structural representation of the anti-polished rod dropping device of a kind of oil pumper, in figure 1, dropping against device 2, positive left-hand thread screw 3, cartridge type bearing 4, cartridge type card tooth 5, dropping against device cover plate 6, cover plate bolt 7, polished rod
The specific embodiment: embodiment 1, the utility model are to be formed by connecting by dropping against device 1, positive left-hand thread screw 2, cartridge type bearing 3, cartridge type card tooth 4, dropping against device cover plate 5, cover plate bolt 6; Cartridge type bearing 3 is positioned at dropping against device 1 top, and cartridge type card tooth 4 is located in cartridge type bearing 3, and contacts with polished rod 7; Dropping against device 1 is connected with polished rod eye by positive left-hand thread screw 2.
Embodiment 2, dropping against device have U-shaped groove on 1 center, and dropping against device cover plate 5 is fixed in the U-shaped groove of dropping against device 1 center by cover plate bolt 6.
Embodiment 3, positive left-hand thread screw 2 two ends are provided with positive and negative screw thread, are connected with dropping against device 1 internal thread corresponding with polished rod eye respectively.
Claims (1)
1. an oil pumper is prevented the polished rod dropping device, and it is to be formed by connecting by dropping against device (1), positive left-hand thread screw (2), cartridge type bearing (3), cartridge type card tooth (4), dropping against device cover plate (5), cover plate bolt (6); It is characterized in that: cartridge type bearing (3) is positioned at dropping against device (1) top, and cartridge type card tooth (4) is located in cartridge type bearing (3), and contacts with polished rod (7); Dropping against device (1) is connected with polished rod eye by positive left-hand thread screw (2).
2. a kind of oil pumper according to claim 1 is prevented the polished rod dropping device, and it is characterized in that: dropping against device (1) has U-shaped groove on the center, and dropping against device cover plate (5) is fixed in the U-shaped groove of dropping against device (1) center by cover plate bolt (6).
3. the anti-polished rod dropping device of a kind of oil pumper according to claim 1 is characterized in that: positive left-hand thread screw (2) two ends are provided with positive and negative screw thread, are connected with dropping against device (1) internal thread corresponding with polished rod eye respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160450 CN203271626U (en) | 2013-04-02 | 2013-04-02 | Device for preventing polish rod from falling from pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160450 CN203271626U (en) | 2013-04-02 | 2013-04-02 | Device for preventing polish rod from falling from pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271626U true CN203271626U (en) | 2013-11-06 |
Family
ID=49502064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160450 Expired - Fee Related CN203271626U (en) | 2013-04-02 | 2013-04-02 | Device for preventing polish rod from falling from pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603612A (en) * | 2013-11-14 | 2014-02-26 | 李南淳 | Pumping unit polished rod retainer |
| CN108194039A (en) * | 2018-03-09 | 2018-06-22 | 周志锐 | Anti- beam hanger falls well device |
-
2013
- 2013-04-02 CN CN 201320160450 patent/CN203271626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603612A (en) * | 2013-11-14 | 2014-02-26 | 李南淳 | Pumping unit polished rod retainer |
| CN108194039A (en) * | 2018-03-09 | 2018-06-22 | 周志锐 | Anti- beam hanger falls well device |
| CN108194039B (en) * | 2018-03-09 | 2023-12-08 | 周志锐 | Oil-proof rod falling well device |
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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: 20131106 Termination date: 20140402 |