CN202780435U - Extractor for crankpin bush of hydraulic type beam-pumping unit - Google Patents
Extractor for crankpin bush of hydraulic type beam-pumping unit Download PDFInfo
- Publication number
- CN202780435U CN202780435U CN 201220522897 CN201220522897U CN202780435U CN 202780435 U CN202780435 U CN 202780435U CN 201220522897 CN201220522897 CN 201220522897 CN 201220522897 U CN201220522897 U CN 201220522897U CN 202780435 U CN202780435 U CN 202780435U
- Authority
- CN
- China
- Prior art keywords
- extractor
- pumping unit
- type beam
- hydraulic
- barrel
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an extractor for a crankpin bush of a hydraulic type beam-pumping unit. The extractor comprises a threaded rod (1), a fixed nut (2), a supporting barrel (3), a top barrel (4), a hydraulic hollow lifting jack (5), a gasket (6), a high-pressure rubber hose (7) and a hydraulic pump (8) and is characterized in that the supporting barrel (3) is in a water bucket shape; the bottom of the supporting barrel (3) is provided with a center hole (A); the threaded rod (1) is sequentially penetrated through the gasket (6), the hydraulic hollow lifting jack (5), the center of the top barrel (4) and the center of the supporting barrel (3); and the fixed nut (2) is arranged at the left end of the threaded rod (1). The extractor has the advantages that simple is simple, operation is safe, time is saved, labor is saved, downtime is short, oil extraction efficiency is improved, sand settling and failed wells caused by serious sanding of the wells are prevented, crude oil output is increased and economic benefits of oil fields are improved.
Description
Technical field
The utility model relates to the oil field beam pumping unit and changes crankpin bush aid, specifically a kind of fluid pressure type beam-pumping unit crankpin bush extractor.
Background technology
Beam pumping unit is in service in long-term production, take off because crank pins is loosening, disconnected to cause various faults, even the major accident that causes oil pumper to turn over machine occurs.Find that after deliberation the crank pins lining is impaired, be cause that crank pins is loosening, disconnected taking off and cause oil pumper to turn over the main cause of machine accident.Because the crank pins lining is hidden in the crank hole inwall, in conjunction with very tight, damaged part is difficult finds that Renewal process is wasted time and energy, and is left in the basket easily and is difficult for changing, and therefore, will cause and newly change crank pins and damage impaired once again because of lining; When therefore changing crank pins, the crank pins lining must be changed simultaneously, the potential safety hazard of crank pins could be thoroughly eradicated.Getting at present lining mainly is to be knocked with sledgehammer by turns by 4～5 people, some difficult especially lining of getting, also need to employ gas cutting and carry out the destructiveness dismounting, above taking-up mode not only wastes time and energy, and crank hole tended to cause certain damage, stopping the well overlong time affects crude output, also can cause the sand card well of lying for the serious well that shakes out.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of fluid pressure type beam-pumping unit crankpin bush extractor.
The utility model is realized by following technical proposals:
The utility model comprises: screw rod, hold-down nut, support tube, top cylinder, the hollow jack of hydraulic pressure, pad, high-pressure rubber pipe, hydraulic pump.Fluid pressure type beam-pumping unit crankpin bush extractor support tube is the bucket shape, and the bottom is provided with centre bore, and screw rod passes from the centre bore of pad, the hollow jack of hydraulic pressure, cylinder center, top and support tube successively, and the left end of screw rod is equipped with hold-down nut.
Top cylinder in the above-mentioned fluid pressure type beam-pumping unit crankpin bush extractor is cylindrical shape, and left end is provided with the one-level ring-shaped step.
The beneficial effects of the utility model are: simple in structure, and handling safety, time saving and energy saving, downtime is short, improves rate when recovering the oil, and the serious well of avoiding shaking out causes the sand card well of lying, and increases crude output, improves oilfield economic benefit.
Description of drawings
Fig. 1-the utility model the field master looks the broken section structural representation.
Among the figure, 1. screw rod, 2. hold-down nut, 3. support tube, 4. top cylinder, the 5. hollow jack of hydraulic pressure, 501. plungers, 6. pad, 7. high-pressure rubber pipe, 8. hydraulic pump, 9. crank, 10. lining.
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is further elaborated:
Fluid pressure type beam-pumping unit crankpin bush extractor is by screw rod 1, hold-down nut 2, support tube 3, top cylinder 4, the hollow jack 5 of hydraulic pressure, pad 6, high-pressure rubber pipe 7, and hydraulic pump 8 forms.Its fluid pressure type beam-pumping unit crankpin bush extractor support tube 3 is the bucket shape, the bottom is provided with centre bore A, screw rod 1 passes from pad 6, the hollow jack 5 of hydraulic pressure, cylinder 4 centers, top successively, pass by the hole of the crankpin bush 10 on the crank 9 and the centre bore A of support tube 3, the left end of screw rod 1 is loaded onto hold-down nut 2.Connect high-pressure rubber pipe 7, close the relief valve of hydraulic pump 8, the handle of upper and lower operation hydraulic pump 8, then the plunger 501 of the hollow jack 5 of hydraulic pressure ejects lining 10.
Claims (2)
1. a fluid pressure type beam-pumping unit crankpin bush extractor comprises: screw rod (1), hold-down nut (2), support tube (3), top cylinder (4), the hollow jack of hydraulic pressure (5), pad (6), high-pressure rubber pipe (7), hydraulic pump (8); It is characterized in that: described fluid pressure type beam-pumping unit crankpin bush extractor support tube (3) is the bucket shape, the bottom is provided with centre bore (A), screw rod (1) passes from the centre bore (A) of pad (6), the hollow jack of hydraulic pressure (5), cylinder (4) center, top and support tube (3) successively, and the left end of screw rod (1) is equipped with hold-down nut (2).
2. fluid pressure type beam-pumping unit crankpin bush extractor according to claim 1 is characterized in that: described top cylinder (4) is cylindrical shape, and left end is provided with the one-level ring-shaped step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522897 CN202780435U (en) | 2012-10-14 | 2012-10-14 | Extractor for crankpin bush of hydraulic type beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522897 CN202780435U (en) | 2012-10-14 | 2012-10-14 | Extractor for crankpin bush of hydraulic type beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780435U true CN202780435U (en) | 2013-03-13 |
Family
ID=47807774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522897 Expired - Fee Related CN202780435U (en) | 2012-10-14 | 2012-10-14 | Extractor for crankpin bush of hydraulic type beam-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780435U (en) |
-
2012
- 2012-10-14 CN CN 201220522897 patent/CN202780435U/en not_active Expired - Fee Related
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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: 20130313 Termination date: 20131014 |