CN2787874Y - Looseness prevention type crank pin assembly - Google Patents
Looseness prevention type crank pin assembly Download PDFInfo
- Publication number
- CN2787874Y CN2787874Y CN 200520030627 CN200520030627U CN2787874Y CN 2787874 Y CN2787874 Y CN 2787874Y CN 200520030627 CN200520030627 CN 200520030627 CN 200520030627 U CN200520030627 U CN 200520030627U CN 2787874 Y CN2787874 Y CN 2787874Y
- Authority
- CN
- China
- Prior art keywords
- crank pin
- bearing
- crank
- locking nut
- thrust
- 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
Abstract
The utility model relates to a looseness prevention type crank pin assembly, which is a mechanical device on a pumping unit. The looseness prevention type crank pin assembly solves the problem that a locking nut of a crank pin assembly is easy to loosen and release to cause an accident of turning over a pumping unit in the prior art. The utility model is composed of a bearing seat, a crank pin shaft, a bearing cover, a press cover, a thrust bearing, an oil seal, a taper sleeve, a shim, an anti-thrust shim, a blocking nut, a locking nut and a crank which are connected, wherein the thrust bearing is arranged on the crank pin shaft and connected with the bearing seat, and the bearing cover is arranged on the bearing seat; one end of the crank pin shaft is provided with the press cover, and the oil seal is arranged on the bearing seat; the taper sleeve is arranged on the crank pin shaft and connected with the crank, and the taper sleeve of a crank pin is locked tightly by the locking nut through the shim; the anti-thrust shim and the blocking nut are positioned on the locking nut arranged on the tail end of the crank pin. The utility model is suitable for pumping units of various types in oil fields.
Description
One, technical field: the utility model relates to a kind of mechanical device on the pumping unit, especially anti-loosing type crank pin assembly.
Two, background technique: the oil pumping machine crank pin assembly is the transmission connection piece of crank and connecting rod in the beam pumping unit, is bearing very big fluctuating load at work, and it is loosening that the locking nut of crank pin assembly is occurred, and deviates to cause pumping unit to turn over the machine accident.
Three, summary of the invention: the purpose of this utility model provides anti-loosing type crank pin assembly, it be increase in the back of former locking nut a thrust washer and with the opposite lock nut of locking nut screw thread direction, to realize the effect of locking crank pin locking nut, the purpose of this utility model is to realize like this, it is by bearing support, crank pin, bearing cap, gland, thrust-bearing, oil sealing, tapered sleeve, pad, thrust washer, lock nut, locking nut, crank is formed by connecting, thrust-bearing is installed on the crank pin and with bearing support and is connected, form crank pin assembly main body: bearing cap is installed on the bearing support, plays the seal action of protection bearing; One end of crank pin has gland; Oil sealing is arranged on the bearing support; Tapered sleeve is installed on the crank pin, and is connected with crank; Locking nut is by pad locking crank pin tapered sleeve; Thrust washer and lock nut are positioned at the terminal locking nut of crank pin (play the effect of locking crank pin, prevent that the loosening pumping unit that causes of locking nut from turning over the machine accident).
Can realize locking the effect of crank pin locking nut by this device, prevent that pumping unit from turning over the generation of machine accident, this device is applicable to the various pumping unit in oil field.
Four, description of drawings: Fig. 1 is the structural representation of anti-loosing type crank pin assembly, among the figure 1, bearing support 2, crank pin 3, bearing cap 4, gland 5, thrust-bearing 6, oil sealing 7, tapered sleeve 8, pad 9, thrust washer 10, lock nut 11, locking nut 12, crank
Five, embodiment: in Fig. 1, thrust-bearing 5 is installed on the crank pin 2 and with bearing support 1 and is connected, and forms crank pin assembly main body; Bearing cap 3 is installed on the bearing support 1, plays the seal action of protection bearing; One end of crank pin 2 has gland 4; Oil sealing 6 is arranged on the bearing support; Tapered sleeve 7 is installed on the crank pin 2, and is connected with crank 12; Locking nut 11 is by pad 8 locking crank pin tapered sleeves 7; Thrust washer 9 and lock nut 10 are positioned at the crank pin end, are used for locking nut (play the effect of locking crank pin, prevent that the loosening pumping unit that causes of locking nut from turning over the machine accident).
Claims (1)
1, anti-loosing type crank pin assembly is to be formed by connecting by bearing support (1), crank pin (2), bearing cap (3), gland (4), thrust-bearing (5), oil sealing (6), tapered sleeve (7), pad (8), thrust washer (9), lock nut (10), locking nut (11), crank (12), it is characterized in that: thrust-bearing (5) is installed in crank pin (2) and upward and with bearing support (1) is connected; Bearing cap (3) is installed on the bearing support (1); One end of crank pin (2) has gland (4); Oil sealing (6) is arranged on the bearing support; Tapered sleeve (7) is installed on the crank pin (2), and is connected with crank (12); Locking nut (11) is by pad (8) locking crank pin tapered sleeve (7); Thrust washer (9) and lock nut (10) are positioned at the crank pin end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030627 CN2787874Y (en) | 2005-05-10 | 2005-05-10 | Looseness prevention type crank pin assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030627 CN2787874Y (en) | 2005-05-10 | 2005-05-10 | Looseness prevention type crank pin assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787874Y true CN2787874Y (en) | 2006-06-14 |
Family
ID=36786169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030627 Expired - Fee Related CN2787874Y (en) | 2005-05-10 | 2005-05-10 | Looseness prevention type crank pin assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787874Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240506A (en) * | 2015-10-19 | 2016-01-13 | 德瑞石油装备（青岛）有限公司 | Crank connecting structure of pumping unit |
| CN107725005A (en) * | 2017-10-27 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | The connecting rod of horizontal oil pumper and the attachment means of crank |
| 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 |
-
2005
- 2005-05-10 CN CN 200520030627 patent/CN2787874Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240506A (en) * | 2015-10-19 | 2016-01-13 | 德瑞石油装备（青岛）有限公司 | Crank connecting structure of pumping unit |
| CN107725005A (en) * | 2017-10-27 | 2018-02-23 | 濮阳市江源齿轮制造有限公司 | The connecting rod of horizontal oil pumper and the attachment means of crank |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |