CN204253540U - Anti-loose Crank Pin on Pumping Units - Google Patents
Anti-loose Crank Pin on Pumping Units Download PDFInfo
- Publication number
- CN204253540U CN204253540U CN201420525725.8U CN201420525725U CN204253540U CN 204253540 U CN204253540 U CN 204253540U CN 201420525725 U CN201420525725 U CN 201420525725U CN 204253540 U CN204253540 U CN 204253540U
- Authority
- CN
- China
- Prior art keywords
- crank pin
- shank
- loose
- pumping units
- tightening nut
- 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 discloses a kind of anti-loose Crank Pin on Pumping Units.The anti-loose Crank Pin on Pumping Units that the utility model provides, comprising: bearing outer ring gland, fastening piece, selfaligning bearing, crank pin cassette holder, shank, crank pin tapered sleeve, dextrorotation tightening nut and left-handed lock nut; Fastening piece is fixed on the first end of shank; Crank pin cassette holder is sheathed to be fixed on first end; Bearing outer ring gland coordinates with crank pin cassette holder, is fastened on first end; Major diameter fit on selfaligning bearing and first end; The laminating of crank pin tapered sleeve is set on tapered section of shank; Dextrorotation tightening nut and left-handed lock nut are screwed onto on the second end of shank successively; Tapered section forms boss with the second end; Dextrorotation tightening nut and boss offset; Left-handed lock nut and dextrorotation tightening nut offset.The utility model, by the mutual restriction of dextrorotation tightening nut and left-handed lock nut, improves the anti-loose effect of anti-loose Crank Pin on Pumping Units, improves reliability.
Description
Technical field
The utility model relates to oil field equipment field, particularly relates to a kind of anti-loose Crank Pin on Pumping Units.
Background technique
Along with continually developing of petroleum resources, oil recovery technique is also being updated and is being developed, equipment in mechanical oil recovery from pumping unit to submersible electric pump, screw pump etc., of a great variety, but the various oil production equipment adaptable working environment of institute and oil well situation are had nothing in common with each other, and pumping unit is strong with its applicability, maintenance is convenient etc., and advantage becomes in mechanical oil recovery by blanket main flow equipment.
Usually, the crank of pumping unit is connected with the connecting rod of walking beam by crank pin, and the crank pin of pumping unit gets loose and can produce serious damage to equipment.In the prior art, adopt the double nut as shown in accompanying drawing 1, accompanying drawing 2 to loosen de-, that is, realize fastening anti-loose effect by tightening nut 8 and anti-loosing nut 9.Or adopt tightening nut gland as shown in accompanying drawing 3, accompanying drawing 4 anti-loose, that is, by tightening nut 8 and loosen gland 9 and realize fastening anti-loose effect.
But adopt the Crank Pin on Pumping Units of above-mentioned two kinds of structures still frequently can get loose accident in actual job, this situation is more obvious on heavy pumping unit, the anti-loose effect of existing anti-loose Crank Pin on Pumping Units is undesirable, reliability is not high.
Model utility content
The utility model provides a kind of anti-loose Crank Pin on Pumping Units, to overcome the technical problem that the anti-loose effect of existing anti-loose Crank Pin on Pumping Units is undesirable, reliability is not high.
The utility model provides a kind of anti-loose Crank Pin on Pumping Units, comprising:
Bearing outer ring gland, the first fastening piece, selfaligning bearing, crank pin cassette holder, shank, crank pin tapered sleeve, dextrorotation tightening nut and left-handed lock nut; Wherein,
Described first fastening piece is fixed on the first end of described shank;
On the sheathed first end being fixed on described shank of described crank pin cassette holder;
Described bearing outer ring gland coordinates with described crank pin cassette holder, is fastened on described shank first end;
Described bearing outer ring gland and described crank pin cassette holder form holding cavity;
Described first fastening piece is arranged in described holding cavity;
Major diameter fit on the first end of described selfaligning bearing and described shank, is fixedly installed in described holding cavity;
Described crank pin tapered sleeve laminating is set on tapered section of described shank;
Described dextrorotation tightening nut and described left-handed lock nut are connected in turn on the second end of described shank;
Tapered section of described shank forms boss with the second end of described shank;
Described dextrorotation tightening nut and described boss offset;
Described left-handed lock nut and described dextrorotation tightening nut offset.
Further, described first fastening piece is nut.
Further, described first fastening piece is round nut.
Further, also comprise:
First packing ring;
Described first packing ring is arranged between described dextrorotation tightening nut and described boss;
Described dextrorotation tightening nut is offseted by described first packing ring and described boss.
Further, the material of described bearing outer ring gland is HT200.
Further, the material of described crank pin cassette holder is HT200.
Further, the material of described crank pin tapered sleeve is 40Cr.
Further, the material of described first packing ring is Q235B.
Further, the material of described dextrorotation tightening nut is ZG310-570.
Further, the material of described left-handed lock nut is ZG310-570.
Technique effect of the present utility model is: when dextrorotation tightening nut trends towards unscrewing direction motion, left-handed lock nut can be driven to trend towards screwing direction motion, when left-handed tightening nut trends towards unscrewing direction motion, dextrorotation lock nut can be driven to trend towards screwing direction motion, by the mutual restriction of dextrorotation tightening nut and left-handed lock nut, improve the anti-loose effect of anti-loose Crank Pin on Pumping Units, improve reliability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of prior art one;
Fig. 2 is the left view of prior art one;
Fig. 3 is the structural representation of prior art two;
Fig. 4 is the left view of prior art two;
Fig. 5 is the structural representation of the anti-loose Crank Pin on Pumping Units embodiment one of the utility model;
Fig. 6 is the left view of the anti-loose Crank Pin on Pumping Units embodiment one of the utility model;
Fig. 7 is the structural representation of the anti-loose Crank Pin on Pumping Units embodiment two of the utility model.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Fig. 5 is the structural representation of the anti-loose Crank Pin on Pumping Units embodiment one of the utility model.Fig. 6 is the left view of the anti-loose Crank Pin on Pumping Units embodiment one of the utility model.
As shown in accompanying drawing 5 and accompanying drawing 6, the anti-loose Crank Pin on Pumping Units of the utility model embodiment one, comprising:
Bearing outer ring gland 1, first fastening piece 2, selfaligning bearing 3, crank pin cassette holder 4, shank 5, crank pin tapered sleeve 6, dextrorotation tightening nut 8 and left-handed lock nut 9; Wherein,
Described first fastening piece 2 is fixed on the first end of described shank 5;
On the sheathed first end being fixed on described shank 5 of described crank pin cassette holder 4;
Described bearing outer ring gland 1 coordinates with described crank pin cassette holder 4, is fastened on described shank 5 first end;
Described bearing outer ring gland 1 forms holding cavity with described crank pin cassette holder 4;
Described first fastening piece 2 is arranged in described holding cavity;
Described selfaligning bearing 3 and the major diameter fit on the first end of described shank 5, be fixedly installed in described holding cavity;
Described crank pin tapered sleeve 6 laminating is set on tapered section of described shank 5;
Described dextrorotation tightening nut 8 and described left-handed lock nut 9 are connected in turn on the second end of described shank 5;
Tapered section of described shank 5 forms boss with the second end of described shank 5;
Described dextrorotation tightening nut 8 offsets with described boss;
Described left-handed lock nut 9 offsets with described dextrorotation tightening nut 9.
Particularly, the first fastening piece 2 is fixedly connected on the end face of the first end of shank 5.
Preferably, the first fastening piece 2 is nut, and the end face of the first end of shank 5 is provided with screw thread, and the first fastening piece 2 is spirally connected with the first end of shank 5.
More preferably, the first fastening piece 2 is round nut.
Crank pin cassette holder 4 is set on the first end of shank 5, and the outer side wall of the first end of shank 5 is provided with card and parts, crank pin cassette holder 4 can be fixed on the first end outer side wall of shank 5.Crank pin cassette holder 4 is for being connected with the connecting rod of pumping unit.
Bearing outer ring gland 1 is by fastening piece, and such as, bolt, buckle and crank pin cassette holder 4 fasten.Bearing outer ring gland 1 and crank pin cassette holder 4 also form holding cavity, and it is inner that the first fastening piece 2 is arranged on this holding cavity.
The first end of shank 5 is also provided with endoporus, and selfaligning bearing 3 is connected with first end major diameter fit.
Shank 5 also has one tapered section, and crank pin tapered sleeve 6 laminating is set on this tapered section.Crank pin tapered sleeve 6 is for being connected shank 5 with the crank of pumping unit.
Form a boss between tapered section of shank 5 and the second end of shank 5, after dextrorotation tightening nut 8 sheathed on the second end of shank 5 screws, one end and this boss of dextrorotation tightening nut 8 offset.
Second end of shank 5 is also arranged with left-handed tightening nut 9, after left-handed tightening nut 9 screws, offsets with the other end of dextrorotation tightening nut 8.
Preferably, be also provided with the first packing ring 7 between boss and dextrorotation tightening nut 8, dextrorotation tightening nut 8 is offseted with boss by the first packing ring 7.
The technique effect of the present embodiment is: when dextrorotation tightening nut trends towards unscrewing direction motion, left-handed lock nut can be driven to trend towards screwing direction motion, when left-handed tightening nut trends towards unscrewing direction motion, dextrorotation lock nut can be driven to trend towards screwing direction motion, by the mutual restriction of dextrorotation tightening nut and left-handed lock nut, improve the anti-loose effect of anti-loose Crank Pin on Pumping Units, improve reliability, thus the number of times of the daily inspection that can reduce a staff, use manpower and material resources sparingly.
Embodiment two
On the basis of embodiment one, further, go out as shown in Figure 7, the end face of the second end of shank 5 is also fixedly installed polygonal body, be convenient to staff and take spanner when repair apparatus and carry out screwing operations.
More specifically, the material of bearing outer ring gland 1 is HT200, and needs to carry out destressing process.
First fastening piece 2, selfaligning bearing 3 are the standard piece of related domain.
The material of crank pin cassette holder 4 is HT200, and needs to carry out destressing process, and male cone (strobilus masculinus) coordinates with connnecting rod big end inner conical surface, and docile and obedient face reaches more than 80%, and endoporus coordinates with selfaligning bearing 3 outer ring slight interference.
The material of crank pin tapered sleeve 6 is 40Cr, quenching with Subsequent tempering HRC24 ~ 28.
Cylndrical surface, shank 5 termination coordinates with selfaligning bearing 3 inner ring slight interference.Shank 5 first brings out processing locking trough, the first fastening piece 2 by floor clip anti-loosing compact selfaligning bearing 3 inner ring screwed on.
The outer side wall crank pin tapered sleeve 6 of tapered section of shank 5 coordinates, and docile face reaches more than 80%, by moving axially the object that swelling reaches fixing with crank.
Dextrorotation binding thread applies axial tension by dextrorotation tightening nut 8 and crank pin is moved swelling crank pin tapered sleeve 6, and left-handed checknut left-handed lock nut 9 of screwing on prevents dextrorotation tightening nut 8 from unclamping, and footpath at the bottom of right-handed thread is greater than left-handed thread external diameter.
Polygonal body (such as, square toes) on second end of shank 5 is for costing spanner or pipe wrench prevents crank pin 5 from rotating during upper removing nut.
The material of crank pin tapered sleeve 6 is 40Cr, quenching with Subsequent tempering HRC24 ~ 28, and inner conical surface coordinates with crank pin 5 male cone (strobilus masculinus), and docile face reaches more than 80%, and external cylindrical surface coordinates with the hole on crank, and uniform processing 3 opening slots, are convenient to distending in a circumferential direction.
Packing ring 7 material is the axial force that Q235B mainly bears dextrorotation tightening nut 8 applying.
Dextrorotation tightening nut 8 material is ZG310-570, needs to carry out destressing process, and internal thread coordinates with crank pin 5 right-handed thread, produces axial force, uniform 4 projections of exterior periphery by rotating, fastening for hammering.
Left-handed lock nut 9 material is ZG310-570, need to carry out destressing process, internal thread and crank pin 5 left hand thread engagement, prevent it from loosening by rotating generation axial force compression dextrorotation tightening nut 8, in oil pump running process, except dextrorotation tightening nut 8 produces frictional force when loosening to it, do not have any power to make it produce rotating tendency, when dextrorotation tightening nut 8 occurs left-handed lock nut 9 will being driven to rotate when loosening, its sense of rotation is just in time tightening direction, thus stops dextrorotation tightening nut 8.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (10)
1. an anti-loose Crank Pin on Pumping Units, is characterized in that, comprising:
Bearing outer ring gland, the first fastening piece, selfaligning bearing, crank pin cassette holder, shank, crank pin tapered sleeve, dextrorotation tightening nut and left-handed lock nut; Wherein,
Described first fastening piece is fixed on the first end of described shank;
On the sheathed first end being fixed on described shank of described crank pin cassette holder;
Described bearing outer ring gland coordinates with described crank pin cassette holder, is fastened on described shank first end;
Described bearing outer ring gland and described crank pin cassette holder form holding cavity;
Described first fastening piece is arranged in described holding cavity;
Major diameter fit on the first end of described selfaligning bearing and described shank, is fixedly installed in described holding cavity;
Described crank pin tapered sleeve laminating is set on tapered section of described shank;
Described dextrorotation tightening nut and described left-handed lock nut are connected in turn on the second end of described shank;
Tapered section of described shank forms boss with the second end of described shank;
Described dextrorotation tightening nut and described boss offset;
Described left-handed lock nut and described dextrorotation tightening nut offset.
2. anti-loose Crank Pin on Pumping Units according to claim 1, is characterized in that,
Described first fastening piece is nut.
3. anti-loose Crank Pin on Pumping Units according to claim 2, is characterized in that,
Described first fastening piece is round nut.
4. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that, also comprise:
First packing ring;
Described first packing ring is arranged between described dextrorotation tightening nut and described boss;
Described dextrorotation tightening nut is offseted by described first packing ring and described boss.
5. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that,
The material of described bearing outer ring gland is HT200.
6. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that,
The material of described crank pin cassette holder is HT200.
7. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that,
The material of described crank pin tapered sleeve is 40Cr.
8. anti-loose Crank Pin on Pumping Units according to claim 4, is characterized in that,
The material of described first packing ring is Q235B.
9. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that,
The material of described dextrorotation tightening nut is ZG310-570.
10. the anti-loose Crank Pin on Pumping Units according to any one of claims 1 to 3, is characterized in that,
The material of described left-handed lock nut is ZG310-570.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525725.8U CN204253540U (en) | 2014-09-12 | 2014-09-12 | Anti-loose Crank Pin on Pumping Units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525725.8U CN204253540U (en) | 2014-09-12 | 2014-09-12 | Anti-loose Crank Pin on Pumping Units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253540U true CN204253540U (en) | 2015-04-08 |
Family
ID=52957853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420525725.8U Expired - Fee Related CN204253540U (en) | 2014-09-12 | 2014-09-12 | Anti-loose Crank Pin on Pumping Units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253540U (en) |
Cited By (6)
| 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 |
| CN105909682A (en) * | 2016-07-05 | 2016-08-31 | 陈建平 | Crank pin assembly for oil pumping unit in oil field |
| 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 |
| CN109458402A (en) * | 2018-11-30 | 2019-03-12 | 中钢集团西安重机有限公司 | A kind of running wheel mechanism of suspension type cover carriage |
| 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 |
-
2014
- 2014-09-12 CN CN201420525725.8U patent/CN204253540U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| CN105909682A (en) * | 2016-07-05 | 2016-08-31 | 陈建平 | Crank pin assembly for oil pumping unit in oil field |
| 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 |
| CN109458402A (en) * | 2018-11-30 | 2019-03-12 | 中钢集团西安重机有限公司 | A kind of running wheel mechanism of suspension type cover carriage |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204253540U (en) | Anti-loose Crank Pin on Pumping Units | |
| CN206785814U (en) | Expansion pin | |
| CN203948487U (en) | A kind of adapter assembly | |
| SA519402316B1 (en) | Hydraulically Actuated Safety Sub | |
| CN202280717U (en) | Hydraulic fitting-up bolt | |
| US10030453B2 (en) | Device for the connection of rods for rotational drive of a downhole pumping apparatus | |
| CN205064530U (en) | Nut anti -looseness device | |
| CN207454481U (en) | A kind of anti-drop bolt component | |
| CN205780190U (en) | A kind of high intensity anticreep studs assembly | |
| CN103016488A (en) | Connecting structure, mounting tool and connecting method for speed reducer housing | |
| CN204703798U (en) | Drill disassembled equipment | |
| CN209130074U (en) | Surely type fluid-flywheel clutch coupling arrangement is filled | |
| CN204344653U (en) | Anti-slip thread set screws component | |
| CN204019455U (en) | A kind of pin removal | |
| CN203228177U (en) | Special tool for installing belt wheel | |
| CN204339661U (en) | Knock spanner | |
| CN207899524U (en) | A kind of overhang roll mill grinding roller conveniently drained the oil | |
| CN206539580U (en) | A kind of antidetonation combination nut | |
| CN109227467A (en) | Expansion type extracting tool and its method for dismounting | |
| US2177800A (en) | Nut lock | |
| CN205578462U (en) | Stop nut | |
| CN210968669U (en) | Pipeline separation tool | |
| CN220204313U (en) | Anti-corrosion lock nut | |
| CN204533135U (en) | Valve spider handle fixed structure and hold-doun nut thereof | |
| CN211466235U (en) | Quick extracting tool of solenoid valve case |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 |