CN201862978U - Crank pin extractor for oil pumping unit - Google Patents
Crank pin extractor for oil pumping unit Download PDFInfo
- Publication number
- CN201862978U CN201862978U CN2010206330322U CN201020633032U CN201862978U CN 201862978 U CN201862978 U CN 201862978U CN 2010206330322 U CN2010206330322 U CN 2010206330322U CN 201020633032 U CN201020633032 U CN 201020633032U CN 201862978 U CN201862978 U CN 201862978U
- Authority
- CN
- China
- Prior art keywords
- crank
- crank pin
- bracket
- lifting nut
- hanging
- 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 discloses a crank pin extractor for an oil pumping unit, which comprises a crank, a crank pin, two hanging hooks, a hanging rod, a bracket, a traveling screw and a lifting nut, wherein the crank pin is arranged in the crank; the lifting nut is fixed on the right lateral surface of the bracket; external threads of the traveling screw are screwed with the internal threads of the lifting nut; the right end of the traveling screw is sleeved outside the hanging rod; the left ends of the hanging hooks are hooked with the outer edge of the crank pin; the right ends of the hanging hooks are hung on the hanging rod; the two hanging hooks are symmetrically arranged; the bracket is supported on the right side of the crank; the hanging hooks, the hanging rod, the bracket and the traveling screw are arranged between the crank and the bracket; and the traveling screw is rotated to travel towards the right side of the crank pin, thereby extracting the crank pin from a pin hole of the crank. By using the utility model, the extraction work of the crank pin can be conveniently finished; and the crank pin extractor saves time and labor, ensures that workers have no danger during operation and has high work efficiency and remarkable economic and social benefits.
Description
Technical field
The utility model is the mechanical device of oil-field oil pumper maintenance usefulness, is a kind of crank pins extractor.
Background technology
The crank of oil pumper is connected by crank pins with connecting rod, when oil pumper need be adjusted running parameter or change the crank pins that damages, crank pins need be pulled out from the pin-and-hole of crank, and then reinstall, the method of extracting crank pins at present at the scene is to impact crank pins by the operator more than with sledgehammer, crank pins is withdrawed from from the crank hole of oil pumper, because the crank pins present position is special, on-the-spot make very inconvenience when extracting crank pins in this way, sledgehammer impacts the power of not using, the operator is abnormally dangerous, cause personal injury easily, again because in the long-term work process, there is the corrosion problem in oil pumper, make its dismounting crank pins difficulty more, need expensive time and manpower, material resources just can be finished this work.
Summary of the invention
The purpose of this utility model is a kind of oil pumping machine crank pin extractor of design, utilizes this oil pumping machine crank pin extractor, can easily crank pins be disassembled.
The purpose of this utility model has been achieved in that crank, crank pins, crank pins is installed in the crank, also have hook, peg, support, walking screw rod, weight lifting nut, the weight lifting nut leans against the right flank of support, the external screw thread of walking screw rod and the internal thread of weight lifting nut screw, walking screw rod right-hand member is sleeved on outside the peg, the hook left end tangles the outer rim of crank pins, the hook right-hand member hangs on the peg, two hook symmetries are installed, stent support is on the right side of crank, and hook, peg, support, walking screw rod are between crank and the support.
The beneficial effects of the utility model are: rotation weight lifting nut, the walking screw rod is walked to the crank pins right direction, thereby crank pins is pulled out from the pin-and-hole of crank.Use the utility model can finish the work of extracting of crank pins easily, save time, laborsaving, high efficiency is safe from danger when the workman operates, and has remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is the installation diagram of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
As seen from the figure, embodiment of the present utility model comprises crank 1, crank pins 2, hook 3, peg 4, support 5, walking screw rod 6, weight lifting nut 7, crank pins 2 is installed in 1 li on crank, weight lifting nut 7 leans against the right flank of support 5, the external screw thread of walking screw rod 6 and the internal thread of weight lifting nut 7 screw, walking screw rod 6 right-hand members are sleeved on outside the peg 4, link up with the outer rim that 3 left ends tangle crank pins 2, linking up with 3 right-hand members hangs on the peg 4, two hook 3 symmetries are installed, make it stressed even, support 5 is supported on the right side of crank 1, hook 3, peg 4, support 5, walking screw rod 6 is between crank 1 and the support 5.
Rotation weight lifting nut 7 during use, walking screw rod 6 is walked to the right under threaded function, drives crank pins 2 and walks to the right, thereby crank pins 2 is pulled out from the pin-and-hole of crank 1.
Claims (1)
1. oil pumping machine crank pin extractor, crank (1) is arranged, crank pins (2), crank pins (2) is installed in crank (1) lining, it is characterized in that: also have hook (3), peg (4), support (5), walking screw rod (6), weight lifting nut (7), weight lifting nut (7) leans against the right flank of support (5), the external screw thread of walking screw rod (6) and the internal thread of weight lifting nut (7) screw, walking screw rod (6) right-hand member is sleeved on outside the peg (4), hook (3) left end tangles the outer rim of crank pins (2), hook (3) right-hand member hangs on the peg (4), two hooks (3) symmetry is installed, support (5) is supported on the right side of crank (1), hook (3), peg (4), support (5), walking screw rod (6) is between crank (1) and the support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206330322U CN201862978U (en) | 2010-11-16 | 2010-11-16 | Crank pin extractor for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206330322U CN201862978U (en) | 2010-11-16 | 2010-11-16 | Crank pin extractor for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862978U true CN201862978U (en) | 2011-06-15 |
Family
ID=44134145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206330322U Expired - Fee Related CN201862978U (en) | 2010-11-16 | 2010-11-16 | Crank pin extractor for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201862978U (en) |
-
2010
- 2010-11-16 CN CN2010206330322U patent/CN201862978U/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: 20110615 Termination date: 20121116 |