CN203239566U - Improved limiting rod structure of anti-reversion taper sleeve plate of screw pump drive device - Google Patents
Improved limiting rod structure of anti-reversion taper sleeve plate of screw pump drive device Download PDFInfo
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- CN203239566U CN203239566U CN 201320107542 CN201320107542U CN203239566U CN 203239566 U CN203239566 U CN 203239566U CN 201320107542 CN201320107542 CN 201320107542 CN 201320107542 U CN201320107542 U CN 201320107542U CN 203239566 U CN203239566 U CN 203239566U
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- sleeve plate
- limiting rod
- screw
- taper sleeve
- reversion
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Abstract
The utility model discloses an improved limiting rod structure of an anti-reversion tape sleeve plate of a screw pump drive device, which relates to the technical field of pumping units and in particular relates to a limiting rod improvement technology of the anti-reversion tape sleeve plate of the screw rod drive device. The improved limiting rod structure of the anti-reversion taper sleeve plate of the screw pump drive device comprises a taper sleeve plate (1), wherein a limiting rod body (2) is arranged in a taper sleeve plate hole; a bolt head (3) and a screw (4) are respectively arranged at the left end and the right end of the limiting rod body; the limiting rod body and the screw rod are connected to be an integral structure; a radial spring jack (7) is formed on the bolt head; an open pin jack is formed on the screw; the bolt head is arranged at the left side of the taper sleeve plate; a nut (5) is in threaded connection on the screw; the nut is arranged at the right side of the taper sleeve plate; an open pin (6) is inserted in the open pin jack; the open pin is arranged at the right side of the nut. The improved limiting rod structure of the anti-reversion taper sleeve plate of the screw pump drive device can be used for solving the problems that the resilience force of the spring is affected as a torsion spring used by the taper sleeve plate of the anti-reversion mechanism of the screw pump drive device is deformed during a working process, and the spring is frequently bent or cannot be drawn back.
Description
Technical field
The utility model relates to the pumping unit technical field, is specifically related to the anti-reverse tapered sleeve dish position-limited lever improvement technology of driving unit on screw pump.
Background technique
Pumping unit is one of visual plant in petroleum production, and its Main Function is by sucker rod, oil well pump, and the crude oil in shaft bottom is risen on ground.At present, oil field adopts screw pump as pumping unit more, and screw pump motor power energy-saving effect exceeds 1/3rd of the machine of kowtowing, and the oil pumping amount of screw pump is also large than the machine of kowtowing.
Screw pump is to rely on the pump housing and the formed engagement spatial volume of screw rod to change and the mobile rotary pump of carrying liquid or making it supercharging.Screw pump is divided into helical rotor pump, two screw pump and three screw pump etc. by the screw rod number.When the active bolt rotary, drive together with the driven screw rod with its engagement and rotate, the screw rod engagement spatial volume of suction chamber one end increases gradually, pressure decreased.Liquid enters the engagement space under differential pressure action.When volume increases to maximum and forms a Seal cage, liquid is just moving in Seal cage one by one continuously vertically, until discharge side one end.At this moment the screw rod of discharge side one end engagement spatial volume is dwindled gradually, and liquid is discharged.Flow and the pressure pulse of screw pump are very little, and noise and vibration is little, and suction capacity is arranged, but screw rod processing is more difficult.Pump has single-suction and two kinds of structures of double-sucking type, but helical rotor pump only has single-suction.Pump must be worn safety valve (helical rotor pump needn't be worn), to prevent that obstruction makes delivery side of pump pressure surpass admissible value and damage pump or prime mover as discharge tube for a certain reason.
As shown in Figure 1-2, the spring that the tapered sleeve dish of the anti-reverse mechanism of driving unit on screw pump is used at present is torsion spring, spring reverses in working procedure while deforming, the endoporus of spring will shrink, when ratchet moves to limit position, require the one arm of spring can be in position-limited lever free-extension, otherwise the another one arm of spring easily deforms, affect the spring-back force of spring, this penetrates hole with regard to the spring that requires position-limited lever can be parallel with the arm of spring to guarantee the spring arm free-extension.But in the practical set process, because the chamfering of tapered sleeve dish is sometimes bigger than normal, add that the position in position-limited lever hole need to be held by the assembler in assembly process, the situation that spring arm maybe can not be shunk by stretch bending often occurs.
Summary of the invention
The utility model provides the anti-reverse tapered sleeve dish position-limited lever of driving unit on screw pump to improve structure, the utility model has solved in the torsion spring working procedure that the tapered sleeve dish of the anti-reverse mechanism of driving unit on screw pump uses and has deformed, affect the spring-back force of spring, the problem that spring arm maybe can not be shunk by stretch bending often occurs.
For addressing the above problem, the utility model adopts following technological scheme: the anti-reverse tapered sleeve dish position-limited lever of driving unit on screw pump improves structure, comprises tapered sleeve dish 1, is provided with the spacing body of rod 2 in tapered sleeve dish 1 hole; The spacing body of rod 2 left and right ends are respectively arranged with bolt head 3 and screw rod 4, and bolt head 3, the spacing body of rod 2 and screw rod 4 connect as one structure, and spring jack 7 is radially arranged on bolt head 3, and the cotter pin jack is arranged on screw rod 4; Bolt head 3 is arranged at tapered sleeve dish 1 left side, the nut 5 that has been threaded on screw rod 4, and nut 5 is arranged at tapered sleeve dish 1 right side, is inserted with cotter pin 6 in the cotter pin jack, and cotter pin 6 is positioned at nut 5 right sides.
The utility model designs a kind of position-limited lever and connecting structure of new structure, to guarantee one arm free-extension in position-limited lever of torsion spring, avoid simultaneously spring arm in assembly process by stretch bending, guarantee that spring has sufficient spring-back force, spring arm can be by stretch bending, and spring can free shrink.
The accompanying drawing explanation
Fig. 1 is background technique position-limited lever schematic diagram;
Fig. 2 is background technique position-limited lever scheme of installation;
Fig. 3 is the utility model structural representation;
Fig. 4 is the utility model mounting structure schematic diagram.
Symbol description in figure: tapered sleeve dish 1, the spacing body of rod 2, bolt head 3, screw rod 4, nut 5, cotter pin 6, spring jack 7.
Embodiment
below by best embodiment, the utility model is described in detail
.
As shown in Figure 3-4, the anti-reverse tapered sleeve dish position-limited lever of driving unit on screw pump improves structure, comprises tapered sleeve dish 1, is provided with the spacing body of rod 2 in tapered sleeve dish 1 hole; The spacing body of rod 2 left and right ends are respectively arranged with bolt head 3 and screw rod 4, and bolt head 3, the spacing body of rod 2 and screw rod 4 connect as one structure, and spring jack 7 is radially arranged on bolt head 3, and the cotter pin jack is arranged on screw rod 4; Bolt head 3 is arranged at tapered sleeve dish 1 left side, the nut 5 that has been threaded on screw rod 4, and nut 5 is arranged at tapered sleeve dish 1 right side, is inserted with cotter pin 6 in the cotter pin jack, and cotter pin 6 is positioned at nut 5 right sides.Described bolt head 3 is hexagon.
The position-limited lever of prior art is in use through after the tapered sleeve dish, by spring washer and nut check, because position-limited lever in the locking process can rotate, guarantees that so very difficult spring arm on spacing hole penetrates hole and guarantees parallel with the angle of spring arm.The position-limited lever structure of the utility model design increases the length with the tapered sleeve dish section of penetrating, and after penetrating, by nut, is screwed and is realized axial limiting, in the rear end of nut, uses cotter pin to penetrate, and guarantees that nut does not come off along position limit pin.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (2)
1. the anti-reverse tapered sleeve dish position-limited lever of driving unit on screw pump improves structure, comprises tapered sleeve dish (1), in tapered sleeve dish (1) hole, is provided with the spacing body of rod (2); It is characterized in that, the spacing body of rod (2) left and right end is respectively arranged with bolt head (3) and screw rod (4), bolt head (3), the spacing body of rod (2) and screw rod (4) connect as one structure, and spring jack (7) is radially arranged on bolt head (3), on screw rod (4), the cotter pin jack are arranged; Bolt head (3) is arranged at tapered sleeve dish (1) left side, the nut (5) that has been threaded on screw rod (4), and nut (5) is arranged at tapered sleeve dish (1) right side, is inserted with cotter pin (6) in the cotter pin jack, and cotter pin (6) is positioned at nut (5) right side.
2. the anti-reverse tapered sleeve dish position-limited lever of driving unit on screw pump improves structure as claimed in claim 1, it is characterized in that, described bolt head (3) is hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107542 CN203239566U (en) | 2013-03-11 | 2013-03-11 | Improved limiting rod structure of anti-reversion taper sleeve plate of screw pump drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107542 CN203239566U (en) | 2013-03-11 | 2013-03-11 | Improved limiting rod structure of anti-reversion taper sleeve plate of screw pump drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239566U true CN203239566U (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107542 Expired - Fee Related CN203239566U (en) | 2013-03-11 | 2013-03-11 | Improved limiting rod structure of anti-reversion taper sleeve plate of screw pump drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185232A (en) * | 2018-10-31 | 2019-01-11 | 英业达科技有限公司 | Buckling device |
-
2013
- 2013-03-11 CN CN 201320107542 patent/CN203239566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185232A (en) * | 2018-10-31 | 2019-01-11 | 英业达科技有限公司 | Buckling device |
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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: 20131016 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |