CN204002606U - A kind of Anti-slip device for reverse screw pump bar - Google Patents
A kind of Anti-slip device for reverse screw pump bar Download PDFInfo
- Publication number
- CN204002606U CN204002606U CN201420322277.1U CN201420322277U CN204002606U CN 204002606 U CN204002606 U CN 204002606U CN 201420322277 U CN201420322277 U CN 201420322277U CN 204002606 U CN204002606 U CN 204002606U
- Authority
- CN
- China
- Prior art keywords
- spring
- tooth cover
- ratch
- utility
- model
- 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 kind of Anti-slip device for reverse screw pump bar.The utility model provides a kind of Anti-slip device for reverse screw pump bar, and its object is to make the sucker rod can anticreep, can realize again back-off simultaneously.The technical solution of the utility model is a kind of Anti-slip device for reverse screw pump bar, comprise the female joint and the adapter sleeve that are together by a threaded connection, female joint outer rim side is fixed with spring socket sleeve and tooth cover by jackscrew, between spring socket sleeve and tooth cover, be connected by spring, spring block set inner side cover has square set, square set is enclosed within on regulating shaft one end, the other end outside of regulating shaft is fixed with ratch, the screw thread at described regulating shaft two ends is left-handed, described tooth cover outer rim side is provided with elongated slot, and tooth overlaps a side and is provided with crown and is meshed with the crown of ratch one side.The beneficial effects of the utility model are to have avoided anti-dropping device to move doing unlimited rotary along shackle direction, arrive after certain number of turns when rotating, and make anti-dropping device have back-off function.
Description
Technical field
The utility model relates to a kind of oil field equipment, is specifically related to a kind of Anti-slip device for reverse screw pump bar.
Technical background
At present, the drop-off preventer for sucker rod that machine-pumped oil well uses in recovering the oil and producing is all to do unlimited rotary along shackle direction to move, and when sucker rod moves reciprocatingly in down-hole, does not assemble and threads off because of rotation stress.
Summary of the invention
The utility model provides a kind of Anti-slip device for reverse screw pump bar, and its object is to make the sucker rod can anticreep, can realize again back-off simultaneously.
Technical scheme of the present invention is a kind of Anti-slip device for reverse screw pump bar, comprise the female joint and the adapter sleeve that are together by a threaded connection, female joint outer rim side is fixed with spring socket sleeve and tooth cover by jackscrew, between spring socket sleeve and tooth cover, be connected by spring, spring block set inner side cover has square set, square set is enclosed within on regulating shaft one end, the other end outside of regulating shaft is fixed with ratch, the screw thread at described regulating shaft two ends is left-handed, described tooth cover outer rim side is provided with elongated slot, and tooth overlaps a side and is provided with crown and is meshed with the crown of ratch one side.
The beneficial effects of the utility model are to have avoided anti-dropping device to move doing unlimited rotary along shackle direction, when rotating after a fixing turn, make anti-dropping device have back-off function.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Fig. 2 is that the utility model A-A is to sectional drawing.
Fig. 3 is that the utility model tooth cover coordinates schematic diagram with ratch place crown.
Fig. 4 is that the utility model tooth overlaps 8 sectional views.
Wherein, the 1st, female joint, the 2nd, female joint jackscrew, the 3rd, adapter sleeve, the 4th, ratch, the 5th, spring socket sleeve, the 6th, regulating shaft, the 7th, square set, the 8th, tooth cover, the 9th, tooth cover jackscrew, the 10th, spring, the 11st, elongated slot.
detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in the figure, female joint 1 is connected with adapter sleeve 3 by screw thread, and the inside of adapter sleeve 3 is provided with ratch 4.Be provided with the parts such as spring socket sleeve 5, regulating shaft 6, square set 7, tooth cover 8 in the inside of female joint 1.In addition, be provided with again female joint jackscrew 2 in female joint 1 outer rim side, for fixing spring cover for seat 5; Tooth cover jackscrew 9 is for fixed teeth cover 8, and the outer rim side of tooth cover 8 is provided with elongated slot, can only move predetermined distance along axis, can not rotate.The centre of spring socket sleeve 5 and tooth cover 8 makes tooth overlap 8 right side crowns by the effect of spring 10 to be meshed with the crown in ratch 4 left sides.In the time of oil producing operation, sucker rod axially moves.Due to tooth cover 8 function without spin, the structure of crown makes ratch suppress and stubbornly refuse to move in the time that dextrorotation is linked closely, ratch retreats along axis direction because the effect of skidding of crown slope forces tooth cover 8 in the time of dextrorotation shackle, tooth cover 8 is separated mutually completely with ratch 4, ratch 4 can only be to dextrorotation shackle direction rotation, simultaneously, because spring is connected between spring socket sleeve 5 and tooth cover 8, therefore each ratch 4 when rotated, in the time that the slope effect of skidding retreats tooth cover 8 vertically, spring is first compressed, after passing through a tooth pitch, because spring discharges, making tooth overlap 8 right side crowns engages again with ratch 4 left side crowns, so go round and begin again, even if drop-off preventer for sucker rod can move along shackle direction seat unlimited rotary.
In addition, at ratch 4 during to dextrorotation shackle direction rotation, because ratch 4 and regulating shaft 6 are fixed together, thus will drive regulating shaft 6 to rotate, thereby and the screw thread at regulating shaft 6 two ends be and left-handedly will drive square set 7 to separate also continuous and tooth cover with spring socket sleeve 5 to approach 8.In the time that ratch 4 continues to rotate the setting number of turns to dextrorotation shackle direction, square set 7 is leaned on extremely with tooth cover 8, forces the anti-drop function of ratch 4 to disappear.Because oil well has taken into full account the dropout causing because of roofbolt shackle stress release when mounted, and with the anti-dropping device of some, dropout may be down to minimum, be unlikely to again because its anti-tripping function makes roofbolt in endless Anti-releasing rotating state, then recovering can back-off function.
Claims (1)
1. an Anti-slip device for reverse screw pump bar, it is characterized in that: comprise the female joint (1) and the adapter sleeve (3) that are together by a threaded connection, female joint (1) outer rim side is fixed with spring socket sleeve (5) and tooth cover (8) by jackscrew (2) and jackscrew (9), between spring socket sleeve (5) and tooth cover (8), be connected by spring (10), spring block set (5) inner side cover has square set (7), square set (7) is enclosed within on regulating shaft (6) one end, the other end outside of regulating shaft (6) is fixed with ratch (4), the screw thread at described regulating shaft (6) two ends is left-handed, described tooth cover (8) outer rim side is provided with elongated slot (11), tooth cover (8) one sides are provided with crown and are meshed with the crown of ratch (4) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322277.1U CN204002606U (en) | 2014-06-17 | 2014-06-17 | A kind of Anti-slip device for reverse screw pump bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322277.1U CN204002606U (en) | 2014-06-17 | 2014-06-17 | A kind of Anti-slip device for reverse screw pump bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002606U true CN204002606U (en) | 2014-12-10 |
Family
ID=52042626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322277.1U Expired - Fee Related CN204002606U (en) | 2014-06-17 | 2014-06-17 | A kind of Anti-slip device for reverse screw pump bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611033A (en) * | 2018-12-31 | 2019-04-12 | 大庆市华禹石油机械制造有限公司 | For the oil pipe in petroleum works |
-
2014
- 2014-06-17 CN CN201420322277.1U patent/CN204002606U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611033A (en) * | 2018-12-31 | 2019-04-12 | 大庆市华禹石油机械制造有限公司 | For the oil pipe in petroleum works |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180130 Address after: 710021 Shaanxi city of Xi'an Province Zhang Jia Bao Zhu Road No. 62 Patentee after: Xi'an Changyuan Petroleum Science and Technology Service Co.,Ltd. Address before: 717600 Yanan City Qi oil production plant of Shaanxi province Wuqi County Development Zone Patentee before: Li Guangqing |
|
| 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: 20141210 |