CN202914518U - Anti-trip crank pin assembly free from smashing, disassembly and assembly of pumping unit - Google Patents
Anti-trip crank pin assembly free from smashing, disassembly and assembly of pumping unit Download PDFInfo
- Publication number
- CN202914518U CN202914518U CN 201220607928 CN201220607928U CN202914518U CN 202914518 U CN202914518 U CN 202914518U CN 201220607928 CN201220607928 CN 201220607928 CN 201220607928 U CN201220607928 U CN 201220607928U CN 202914518 U CN202914518 U CN 202914518U
- Authority
- CN
- China
- Prior art keywords
- pumping unit
- assembly
- crank pin
- pin assembly
- smashing
- 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
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 12
- 210000000707 wrist Anatomy 0.000 claims description 8
- 230000006378 damage Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
An anti-trip crank pin assembly free from smashing, disassembly and assembly of a pumping unit comprises a housing (1), a crank pin (2), a bush (3), standby caps (4), corona-shaped nuts (5) and fastening screws (6), and is characterized in that reversal threads are arranged inside and outside the right end of the crank pin (2) to be matched with the standby caps (4) and the corona-shaped nuts (5), a pin hole (A) is arranged at the end, an opening pin is mounted in the pin hole (A), the bush (3) adopts a cylinder structure with an annular convex platform and an inner conical degree and an outer conical degree, four grooves are formed symmetrically on the bush (3), threaded holes are arranged on the annular convex platform, and the high-strength fastening screws (6) are arranged in the threaded holes.
Description
Technical field
The utility model relates to the oil-field oil pumper accessory, and specifically a kind of pumping unit exempts to pound dismounting locking wrist pin assembly.
Background technique
The adjustment of beam pumping unit stroke is regular work at present, and crank pin is in installation, unloading process, and is very inconvenient, need have 2～
3 people make sledgehammer in turn, and must have human hand steered socket wrench, waste time and energy, not only easily with the crank pin thread damage, but also casualty accident appears easily, have potential safety hazard.The conventional crank pin assembly phenomenon of also threading off easily sometimes causes and turns over the machine accident and occur, and not only causes pumping unit to damage, and causes serious economic loss to the oil field, and affects crude oil production.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of pumping unit to exempt to pound dismounting locking wrist pin assembly.
The technical solution of the utility model comprises: housing, crank pins, lining, standby cap, crown type nut, jackscrew.The right-hand member innner and outer that its pumping unit exempts to pound the crank pins of dismounting locking wrist pin assembly is provided with a reverse thread, cooperate with standby cap, crown type nut, the termination is provided with pin hole, expense is housed in the pin hole, can effectively prevent the dropout of crank pins crown type nut, lining is the inside and outside double tapered tube structure with annular boss, and symmetry has four grooves, be provided with tapped hole at annular boss, on tapped hole is interior the high strength jackscrew arranged.
The beneficial effects of the utility model are: during dismounting crank pin assembly, need not make sledgehammer, time saving and energy saving, have the breakthrough of dismounting crank pin assembly conventional operation, effectively avoid crank pin thread damage and personnel's industrial injury and turn over the machine accident occuring, the assurance oilfield safety is produced, and rate when improving oil well production increases crude output.
Description of drawings
Fig. 1-the utility model the field broken section structural representation.
Among the figure, 1. housing, 2. crank pins, 3. lining, 4. standby cap, 5. crown type nut, 6. jackscrew.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in accompanying drawing, pumping unit is exempted to pound dismounting locking wrist pin assembly and is comprised of housing 1, crank pins 2, lining 3, standby cap 4, crown type nut 5, jackscrew 6.The right-hand member innner and outer that its pumping unit exempts to pound the crank pins 2 of dismounting locking wrist pin assembly is provided with a reverse thread, cooperate with standby cap 4, crown type nut 5, the termination is provided with pin hole A, in the pin hole A expense is housed, lining 3 is the inside and outside double tapered tube structure with annular boss, and symmetry has four grooves, is provided with tapped hole at annular boss, on tapped hole is interior high strength jackscrew 6 is arranged.During installation, only need crown type nut 5, standby cap 4 are tightened and get final product, during dismounting crank pins 2, only need to tighten high strength jackscrew 6 with the spanner diagonal angle and just crank pins 2 and lining 3 can be taken out.
Claims (1)
1. a pumping unit exempts to pound dismounting locking wrist pin assembly, comprising: housing (1), crank pins (2), lining (3), standby cap (4), crown type nut (5), jackscrew (6); It is characterized in that: the right-hand member innner and outer that described pumping unit exempts to pound the crank pins (2) of dismounting locking wrist pin assembly is provided with a reverse thread, cooperate with standby cap (4), crown type nut (5), the termination is provided with pin hole (A), in the pin hole (A) expense is housed, lining (3) is the inside and outside double tapered tube structure with annular boss, and symmetry has four grooves, is provided with tapped hole at annular boss, on tapped hole is interior high strength jackscrew (6) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607928 CN202914518U (en) | 2012-11-17 | 2012-11-17 | Anti-trip crank pin assembly free from smashing, disassembly and assembly of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607928 CN202914518U (en) | 2012-11-17 | 2012-11-17 | Anti-trip crank pin assembly free from smashing, disassembly and assembly of pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914518U true CN202914518U (en) | 2013-05-01 |
Family
ID=48162837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220607928 Expired - Fee Related CN202914518U (en) | 2012-11-17 | 2012-11-17 | Anti-trip crank pin assembly free from smashing, disassembly and assembly of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345149A (en) * | 2019-08-13 | 2019-10-18 | 东营恒科精密金属有限公司 | One kind is based on information-based intrinsic safety type oil pumping machine crank pin assembly |
| CN113187798A (en) * | 2021-04-23 | 2021-07-30 | 中国石油天然气集团有限公司 | Nut pre-tightening device for crank pin of pumping unit |
-
2012
- 2012-11-17 CN CN 201220607928 patent/CN202914518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345149A (en) * | 2019-08-13 | 2019-10-18 | 东营恒科精密金属有限公司 | One kind is based on information-based intrinsic safety type oil pumping machine crank pin assembly |
| CN113187798A (en) * | 2021-04-23 | 2021-07-30 | 中国石油天然气集团有限公司 | Nut pre-tightening device for crank pin of pumping unit |
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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: 20130501 Termination date: 20131117 |