CN202148871U - Hydraulic anti-separation damper of sucker rod - Google Patents
Hydraulic anti-separation damper of sucker rod Download PDFInfo
- Publication number
- CN202148871U CN202148871U CN201120277238U CN201120277238U CN202148871U CN 202148871 U CN202148871 U CN 202148871U CN 201120277238 U CN201120277238 U CN 201120277238U CN 201120277238 U CN201120277238 U CN 201120277238U CN 202148871 U CN202148871 U CN 202148871U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- shell
- oil
- rod
- sucker rod
- 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 - Lifetime
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Abstract
The utility model relates to a well repair tool in oil field, namely a hydraulic anti-separation damper of sucker rod comprising a shell, a piston rod in the shell and a piston rod pressing cap. The shell is filled with oil and the piston surface of the piston rod is provided with an oil passage slot. The piston rod does axial and radial movement freely in the shell by compressing the oil. The shell is filled with oil to substitute the conventional spring to overcome the fatigue and damage of the spring to have rational structure, high intensity, long service life, safety and reliability. The utility model can change the instantaneous impact and torque during the working process and well halt caused by accident and can protect the damage of the rod of the sucker rod.
Description
Technical field
The utility model relates to a kind of oil field workover tool, i.e. sucker rod hydraulic pressure anticreep damper.
Background technology
In the prior art, be connected with a plurality of sucker rod anti-breaking devices usually between the long sucker rod of several kms that oil-field oil pumper (ripe title kowtow machine) drives, order ground is to make the certain cushioning effect of sucker rod maintenance that back and forth lifts in the process.Existing sucker rod anti-breaking device comprises housing, housing inner piston rod and piston rod pressure cap; Be connected with spring between in piston rod and the housing, between piston rod and the housing sidewall ball slideway arranged, realize cushioning between the sucker rod; Its shortcoming is that spring fatigue rapid wear or ball grind, and influence is used.
The utility model content
The purpose of the utility model is to provide a kind of rational in infrastructure, the sucker rod hydraulic pressure anticreep damper of long service life to above-mentioned deficiency.
The technical solution of the utility model is: sucker rod hydraulic pressure anticreep damper comprises housing, housing inner piston rod and piston rod pressure cap.Fluid is housed in the housing, on the piston rod piston face oil groove was arranged.Piston rod is done axially and radially freely-movable through compressed oil in housing.It is one or more crossing oil groove.
The utility model has the advantages that: 1, in the housing fluid is housed, replaces conventional spring, it is not enough to overcome the spring fatigue rapid wear, rational in infrastructure, and intensity is high, and long service life is safe and reliable.2, changed the instantaneous stressed and moment of torsion of sucker rod when work and a well that causes in the work accident, the damage that the sucker rod roofbolt is caused plays a protective role.
To combine accompanying drawing that the embodiment of the utility model is described in further detail below.
Description of drawings
Accompanying drawing is the utility model structure diagram.
The specific embodiment
Referring to accompanying drawing, sucker rod hydraulic pressure anticreep damper comprises housing 1 (or claiming oil cylinder), housing 1 inner piston rod 3 and piston rod pressure cap 4.Fluid 2 is housed in the housing 1, oil groove 6 was arranged on the piston face of piston rod 3, pressure cap 4 is connected with housing 1.Fluid 2 was extruded through crossing oil groove 6 when piston rod 3 extruding were moved, and realized compression.Housing 1 is connected with sucker rod, and piston rod 3 is connected with sucker rod through nut 5.
Claims (1)
1. a sucker rod hydraulic pressure anticreep damper comprises housing (1), housing (1) inner piston rod (3) and piston rod pressure cap (4), it is characterized in that fluid (2) is housed in the housing (1), and oil groove (6) was arranged on the piston face of piston rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120277238U CN202148871U (en) | 2011-08-02 | 2011-08-02 | Hydraulic anti-separation damper of sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120277238U CN202148871U (en) | 2011-08-02 | 2011-08-02 | Hydraulic anti-separation damper of sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202148871U true CN202148871U (en) | 2012-02-22 |
Family
ID=45589934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120277238U Expired - Lifetime CN202148871U (en) | 2011-08-02 | 2011-08-02 | Hydraulic anti-separation damper of sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202148871U (en) |
-
2011
- 2011-08-02 CN CN201120277238U patent/CN202148871U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TONGHUA QUNDA ENERGY MACHINE MANUFACTURING CO., LT Free format text: FORMER OWNER: CHEN XIANGBIN Effective date: 20130513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130513 Address after: 134000 No. 2369 Baoan Road, Jilin, Tonghua Patentee after: Tonghua Qunda Energy Machine Manufacturing Co., Ltd. Address before: 134000 Tonghua city of Jilin Province Dongchang Road No. 2369 Tonghua district security group energy Machinery Manufacturing Co. Ltd. Patentee before: Chen Xiangbin |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |