CN202597372U - Horse head pin of oil pumping unit - Google Patents
Horse head pin of oil pumping unit Download PDFInfo
- Publication number
- CN202597372U CN202597372U CN 201220244046 CN201220244046U CN202597372U CN 202597372 U CN202597372 U CN 202597372U CN 201220244046 CN201220244046 CN 201220244046 CN 201220244046 U CN201220244046 U CN 201220244046U CN 202597372 U CN202597372 U CN 202597372U
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- pin
- cylindrical body
- pumping unit
- column body
- horse head
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Abstract
The utility model provides a horse head pin of an oil pumping unit, which is applied to an oilfield walking beam type pumping unit. According to the horse head pin of the oil pumping unit, a second column body has the diameter of 65 to 85mm, which is as long as a horse head pin hole of the oil pumping unit, wherein a first column body with diameter 10 to 15mm more than that of the second column body is arranged at one end of the second column body; an arc top is arranged at the other end of the first column body; two symmetrical axial grooves and two annular concave grooves are arranged on the surface of the second column body; a third column body with diameter 3 to 8mm less than that of the second column body is arranged at the other end of the second column body; and a semispherical ball body is arranged at the other end of the third column body. The horse head pin of the oil pumping unit has the effect that the annular lubricating oil grooves are arranged to lubricate the pin when being moved in or out, and store fragmental matters produced by the pin and the pin hole under relative movement, so as to prevent the pin from being deadly blocked; and after the pin is positioned, the lubricating grease in the oil grooves performs the rust protection, thus the pin can be conveniently taken out.
Description
Technical field
The utility model relates to the oil field machinery oil equipment technical field, and particularly a kind of beam pumping unit is the special-purpose a kind of horse head pin of beam pumping unit.
Background technique
At present, in the oil field machinery oil production process, conventional recovery method is by means of pumping unit, sucker rod and oil well pump, carries out oil extraction.In the oil extraction process; The variation that is accompanied by oil well output will be adjusted the parameter of oil well pump, the production section position is adjusted, or failure and other reasons has taken place underground equipment; Oil well is all wanted the irregular workover eration of carrying out, and taking off horse head pin is the together necessary operation before the construction operation.But in order to guarantee horse head stability, pin is taked interference fit.Pumping unit is operation in the open air for a long time, and rainwater, snow-broth penetrate in the pin, and the oil well that has just carried out one-stop operation in several years, and horse head pin gets rusty because of surface moisture, and pin becomes rusty in pinhole extremely, causes pin not take out smoothly.Seem very simple operation, often very difficult when accomplishing in fact, be difficult to sometimes realize, finally time-consuming, effort dismounting walking beam,
The model utility content
The purpose of the utility model is: a kind of horse head pin of pumping unit is provided, through the improvement to horse head pin of pumping unit, impacts concentrating of strength, help the entering of pin; Have the antirust and row's rainwater function of the lubricant oil of interpolation, solve the dead difficult problem of horse head pin rust.
The technological scheme that the utility model adopts is: horse head pin of pumping unit comprises cambered surface top, first cylindrical body, second cylindrical body, three cylindrical body and hemisphere face body, at axial notch; Annular groove; Chamfering is characterized in that: second cylinder diameter is between 65～85mm, and length is identical with pumping unit horsehead pin-and-hole length; At second a cylindrical end first cylindrical body of diameter greater than second cylinder diameter, 10～15mm arranged, the cambered surface top is arranged at the first cylindrical the other end; Second periphery has the axial notch of two symmetries, on the second cylindrical surface bipassage ring connected in star is arranged; At the second cylindrical the other end three cylindrical body is arranged, the diameter of three cylindrical body is less than second cylinder diameter, 3～8mm; Between second cylindrical body and three cylindrical body, 45 ° chamfering is arranged; The other end at the three cylindrical body has the hemisphere face body.
The degree of depth of described axial notch is 3mm, and width is 10mm; The degree of depth of annular groove is 3mm, and width is 3mm.
Hammering face when the cambered surface top is installation; Hammering face when the hemisphere face body is dismounting.Axial notch is used to discharge the ponding of pin surfaces; Fill up lubricating grease in the annular groove, play effect lubricated and storage impurity; The convenient pin-and-hole that imports when chamfering is installed.
The beneficial effect of the utility model: the utility model horse head pin of pumping unit, spherical end surface design in two ends is pounded when hitting, and has prevented the distortion and the damage of pin end face, is convenient to impact concentrating of strength; The design of annular oil groove gets into or deviates to play lubricated in the process and store the clast that pin and pin-and-hole produce in relative movement at pin, prevents that pin is stuck, and after pin was in place, the lubricating grease in the oil groove played the effect of anti-corrosion; Rain, the vertical groove milling of snow weather can in time drain the water away, and form ventilation flue, are convenient to the pin surfaces drying, avoid getting rusty, and in the operating process of taking out pin, vertical passage can in time be discharged the corrosion thing in the pin, the convenient pin that takes out.
Description of drawings
Fig. 1 is the utility model horse head pin of pumping unit structural representation.
Among the figure, 1-cambered surface top, 2-first cylindrical body, 3-second cylindrical body, 4-axial notch, 5-annular groove, 6-chamfering, 7-three cylindrical body, 8-hemisphere face body.
Embodiment
Embodiment 1: with a horse head pin of pumping unit is example, and the utility model is done further explain.
Consult Fig. 1.The utility model horse head pin of pumping unit comprises cambered surface top 1, first cylindrical body 2, second cylindrical body 3, three cylindrical body 7 and hemisphere face body 8, at axial notch 4, and annular groove 5, chamfering 6.
Second cylindrical body, 3 diameters are 74mm, and length is identical with pumping unit horsehead pin-and-hole length, at an end of second cylindrical body 3 first cylindrical body 2 of diameter greater than second cylindrical body, 3 diameter 15mm are arranged, and at the other end of first cylindrical body 2 cambered surface top 1 are arranged.There is the axial notch 4 of two symmetries on second cylindrical body, 3 surfaces, and the degree of depth of axial notch 4 is 3mm, and width is 10mm.On the surface of second cylindrical body 3 bipassage ring connected in star 5 is arranged, the degree of depth of annular groove 5 is 3mm, and width is 3mm.The diameter that three cylindrical body 7, the three cylindrical bodies 7 is arranged at the other end of second cylindrical body 3 is less than second cylindrical body, 3 diameter 5mm, and length is 80mm.Between second cylindrical body 3 and three cylindrical body 7,45 ° chamfering 6 is arranged; The other end at three cylindrical body 7 has hemisphere face body 8.The diameter of hemisphere face body 8 is identical with the diameter of three cylindrical body 7.
Claims (2)
1. horse head pin of pumping unit; Comprise cambered surface top (1), first cylindrical body (2), second cylindrical body (3), three cylindrical body (7) and hemisphere face body (8); In axial notch (4), annular groove (5), chamfering (6); It is characterized in that: second cylindrical body (3) diameter is between 65～85mm; Length is identical with pumping unit horsehead pin-and-hole length, at an end of second cylindrical body (3) first cylindrical body (2) of diameter greater than second cylindrical body (3) diameter 10～15mm is arranged, and at the other end of first cylindrical body (2) cambered surface top (1) is arranged; There is the axial notch (4) of two symmetries on second cylindrical body (3) surface, on the surface of second cylindrical body (3) bipassage ring connected in star (5) is arranged; The other end at second cylindrical body (3) has three cylindrical body (7), and the diameter of three cylindrical body (7) is less than second cylindrical body (3) diameter 3～8mm; 45 ° chamfering (6) is arranged between second cylindrical body (3) and three cylindrical body (7); The other end at three cylindrical body (7) has hemisphere face body (8).
2. horse head pin of pumping unit according to claim 1 is characterized in that: the degree of depth of described axial notch (4) is 3mm, and width is 10mm; The degree of depth of annular groove (5) is 3mm, and width is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220244046 CN202597372U (en) | 2012-05-28 | 2012-05-28 | Horse head pin of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220244046 CN202597372U (en) | 2012-05-28 | 2012-05-28 | Horse head pin of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597372U true CN202597372U (en) | 2012-12-12 |
Family
ID=47314917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220244046 Expired - Fee Related CN202597372U (en) | 2012-05-28 | 2012-05-28 | Horse head pin of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195314A (en) * | 2014-09-17 | 2014-12-10 | 平湖市当湖街道飞天人机械图文设计服务部 | Connecting piece for numerically controlled lathe and heat treatment technology thereof |
-
2012
- 2012-05-28 CN CN 201220244046 patent/CN202597372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195314A (en) * | 2014-09-17 | 2014-12-10 | 平湖市当湖街道飞天人机械图文设计服务部 | Connecting piece for numerically controlled lathe and heat treatment technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20210528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |