CN209195287U - A kind of polished rod centering device - Google Patents
A kind of polished rod centering device Download PDFInfo
- Publication number
- CN209195287U CN209195287U CN201821642193.0U CN201821642193U CN209195287U CN 209195287 U CN209195287 U CN 209195287U CN 201821642193 U CN201821642193 U CN 201821642193U CN 209195287 U CN209195287 U CN 209195287U
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- CN
- China
- Prior art keywords
- polished rod
- support sleeve
- centering device
- jacking block
- screw
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Abstract
The utility model provides a kind of polished rod centering device, belongs to oil-field oil pumper well head replacement packing for sealing polish rod engineering device technique field.The polished rod centering device includes the c-type support sleeve for being securely fitted on polished rod associated member, screw thread is equipped on the inside of support sleeve, support sleeve outer surface two sides are fixedly connected with handle, at least one screw hole is provided on support sleeve side wall, are equipped in each screw hole for the rotation ejection device that polished rod is placed in the middle.The polished rod centering device structure of the utility model is simple, flexible operation, can be fixedly connected as needed from different polished rod associated members (polished rod sealer or wellhead tee joint), realize replacement polished rod or replacement packing, convenience and high-efficiency.
Description
Technical field
The utility model relates to a kind of polished rod centering devices, belong to oil-field oil pumper well head replacement packing for sealing polish rod device skill
Art field.
Background technique
Rod-pumped well in process of production, often since polished rod surface corrosion or fatigue fracture cause oil and gas leakage or oil
Field can not normally produce, and solve problem above, must just replace polished rod.Routine use elevator is replaced in the operation of polished rod, by
Small in the plane contact area of elevator and wellhead tee joint screw thread, elevator is difficult to keep balance, and elevator offset can damage threeway screw thread,
Threeway or reconstruction flow are also needed to change at this time, extend the construction time.
Rod-pumped well in process of production, can also usually encounter packing senile abrasion, well head pressure are excessively high, stolen molecule therefore
Meaning damage etc. reasons cause polished rod not tight with packing_seal, keep crude oil largely excessive, need replacing at this time rod-pumped well packing with
It resumes production.During replacing packing, if polished rod is not placed in the middle, polished rod side can squeeze packing and cause replacement packing speed slow
Slowly, pollution is not only resulted in, there is also security risks.
Notification number is 202510049 U of CN, and the utility model patent file of entitled " a kind of polished rod centering device " is open
A kind of polished rod centering device being made of L bracket, jackscrew and chuck opens internal thread on the horizontal end face of L bracket
Box cupling, box cupling two sides are welded with rotating handle；The upright bar upper end of L bracket is provided with screw hole, and jackscrew is threaded in the spiral shell of bracket
In hole, one end of jackscrew is jackscrew handle, and the other end is bulb；The end face of chuck is semicircle, is provided with card slot on ontology, is pushed up
The bulb of silk front end is connected in the card slot of chuck.The polished rod centering device can make polished rod placed in the middle, convenient for the replacement operation of packing, mention
High working efficiency；But it is limited by its L bracket structure, malfunction；And structure is complicated, production is difficult.
Utility model content
The purpose of the utility model is to provide a kind of polished rod centering devices, to solve existing polished rod centering device, structure is complicated,
The problem of malfunction.
To achieve the above object, the utility model provides a kind of polished rod centering device, including for being securely fitted in polished rod pass
Join the c-type support sleeve on component, is equipped with screw thread on the inside of support sleeve, support sleeve outer surface two sides are fixedly connected with handle, support sleeve
It is provided at least one screw hole on side wall, is equipped in each screw hole for the rotation ejection device that polished rod is placed in the middle.
The beneficial effects of the utility model are: the polished rod centering device structure of the utility model is simple, flexible operation, it can basis
It needs to be fixedly connected from different polished rod associated member (polished rod sealer or wellhead tee joint), realizes replacement polished rod or carousel
Root, convenience and high-efficiency.
As a kind of improvement to above-mentioned polished rod centering device, open that there are two the spiral shells that are oppositely arranged on the support sleeve side wall
Hole.
It in order to simplify the manufacture craft of rotation ejection device, is improved as the another kind to above-mentioned polished rod centering device, the rotation top
Device includes screw rod and jacking block, and the screw rod is assemblied in corresponding screw hole, and one end that screw rod is located on the inside of support sleeve is detachable
It is fixedly connected with the jacking block.
In order to connect screw rod preferably with jacking block, as another improvement to above-mentioned polished rod centering device, screw rod is located at
One end on the inside of support sleeve is fixedly connected by the spring ball of jacking block inner cavity with the cooperation of the groove of screw rod end with jacking block.
In order to contact jacking block preferably with polished rod, as another improvement to above-mentioned polished rod centering device, the jacking block
Side for pushing tow polished rod is arc surface.
Detailed description of the invention
Fig. 1 is the polished rod centering device structural schematic diagram of the utility model；
In figure, 1, support sleeve；2, handle；3, ejection device is revolved；3-1, nut；3-2, screw rod；3-3, jacking block；4, screw thread.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
The present invention will be further described in detail for embodiment.
In conjunction with Fig. 1, the polished rod centering device of the utility model includes support sleeve 1, handle 2, rotation ejection device 3 and screw thread 4.Its
In, support sleeve 1 is c-type support sleeve, is equipped with screw thread 4 on the inside of support sleeve 1, and 1 outer surface two sides of support sleeve are welded with handle 2, support
The screw hole being oppositely arranged there are two opening on 1 side wall is covered, is equipped in each screw hole for the rotation ejection device 3 that polished rod is placed in the middle.
The present embodiment, screw thread 4 are located at the lower end of 1 medial surface of support sleeve；As other embodiments, screw thread 4 can also be with cloth
The entire medial surface of full support sleeve 1.
The present embodiment, handle 2 are fixedly connected with mode as welding；As other embodiments, the side of being fixedly connected of handle 2
Formula can also be that fixing assembling, integrated molding etc. are commonly used in the prior art and be fixedly connected with mode.
The present embodiment, screw hole number are 2；As other embodiments, screw hole number is not limited to 2, for example, 1 or
2 or more, screw hole and the quantity for revolving ejection device 3 match.
In order to simplify the manufacture craft of rotation ejection device 3, rotation ejection device 3 includes screw rod 3-2 and jacking block 3-3, screw rod 3-2 assembly
In corresponding screw hole.Wherein, the bullet that screw rod 3-2 is located at one end of 1 inside of support sleeve and jacking block 3-3 passes through the inner cavity jacking block 3-3
Spring ball is fixedly connected with the cooperation of the groove of the end screw rod 3-2.
Specifically, screw rod 3-2 is located at one end of 1 inside of support sleeve, and end face is circular conical surface, and its end is equipped with groove,
The inner cavity of jacking block 3-3 is the combination of cone and cylindrical body, and the inner cavity periphery of jacking block 3-3 installs spring ball, top
The conicity of circular conical surface of the conicity of the inner cavity cone of block 3-3 greater than screw rod 3-2.When screw rod 3-2 is promoted to jacking block 3-3
When, spring ball and groove insertion connect, and realize and fix.
As other embodiments, screw rod 3-2, which is located at one end of 1 inside of support sleeve and jacking block 3-3, can also pass through other
It is detachably fixed connection type to be attached, such as Screw assembly.
For ease of operation, one end that screw rod 3-2 is located at 1 outside of support sleeve is welded with nut 3-1.
In order to contact jacking block 3-3 preferably with polished rod, jacking block 3-3 is arc surface for the side of pushing tow polished rod.
In order to adapt to the polished rod of different thicknesses, each rotation ejection device 3 configures at least one jacking block 3-3, such as 3 or 5,
The length of each jacking block 3-3 is different；Or each rotation ejection device 3 configures at least one screw rod 3-2, the length of each screw rod 3-2
It is different.
For above-mentioned support sleeve 1 for being securely fitted in polished rod associated member, polished rod associated member refers to wellhead tee joint or polished rod
Sealer, therefore the polished rod centering device of the utility model may be implemented to be individually replaced polished rod or be individually replaced packing or replace simultaneously
Polished rod and packing.It is specific as follows:
When being individually replaced polished rod: firstly, laying down polished rod sealer；Then, by rotating handle 2, make 1 inside of support sleeve
Screw thread 4 is threadedly coupled with wellhead tee joint；Elevator is recycled to suspend the upper surface that sucker rod load in well is sitting in support sleeve 1 in midair, so that it may
To have been damaged the disassembly of polished rod and the installment work of new polished rod.
When being individually replaced packing: firstly, laying down polished rod sealer gland；Then, by rotating handle 2, make in support sleeve 1
The screw thread 4 of side is threadedly coupled with polished rod sealer upper surface；Finally, making screw rod 3-2 by the nut 3-1 of rotation rotation ejection device 3
Jacking block 3-3 is pushed, and then pushing tow polished rod is displaced, until polished rod is placed in the middle, can easily replace packing.
When replacing polished rod and packing simultaneously: firstly, laying down polished rod sealer；Then, by rotating handle 2, make support sleeve 1
The screw thread 4 of inside is threadedly coupled with wellhead tee joint；Elevator is recycled to suspend the upper end that sucker rod load in well is sitting in support sleeve 1 in midair
More changing jobs for polished rod is completed in face；Then, by the nut 3-1 of rotation rotation ejection device 3, screw rod 3-2 is made to push jacking block 3-3, into
And pushing tow polished rod is displaced, until polished rod is placed in the middle, completes more changing jobs for packing.
The utility model avoids wellhead tee joint thread damage, rotation ejection device is flexible by being threadedly coupled with wellhead tee joint
Operation keeps polished rod quickly placed in the middle, not only can individually complete replacement polished rod or replace the work of packing, but also can be completed at the same time replacement
Polished rod and the work for replacing packing, convenience and high-efficiency can reduce the risk of construction time and environmental pollution.
Claims (5)
1. a kind of polished rod centering device, it is characterised in that: including the c-type support sleeve for being securely fitted on polished rod associated member,
Screw thread is equipped on the inside of support sleeve, support sleeve outer surface two sides are fixedly connected with handle, at least one spiral shell is provided on support sleeve side wall
Hole is equipped with for the rotation ejection device that polished rod is placed in the middle in each screw hole.
2. polished rod centering device according to claim 1, it is characterised in that: open on the support sleeve side wall and set there are two opposite
The screw hole set.
3. polished rod centering device according to claim 2, it is characterised in that: the rotation ejection device includes screw rod and jacking block, institute
It states screw rod to be assemblied in corresponding screw hole, one end that screw rod is located on the inside of support sleeve is detachably fixed the connection jacking block.
4. polished rod centering device according to claim 3, it is characterised in that: screw rod is located at one end and jacking block on the inside of support sleeve
It is fixedly connected by the spring ball of jacking block inner cavity with the cooperation of the groove of screw rod end.
5. polished rod centering device according to claim 4, it is characterised in that: the jacking block is circle for the side of pushing tow polished rod
Cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821642193.0U CN209195287U (en) | 2018-10-10 | 2018-10-10 | A kind of polished rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821642193.0U CN209195287U (en) | 2018-10-10 | 2018-10-10 | A kind of polished rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195287U true CN209195287U (en) | 2019-08-02 |
Family
ID=67407637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821642193.0U Active CN209195287U (en) | 2018-10-10 | 2018-10-10 | A kind of polished rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195287U (en) |
-
2018
- 2018-10-10 CN CN201821642193.0U patent/CN209195287U/en active Active
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