CN201546695U - Seal structure of rotary bridle - Google Patents
Seal structure of rotary bridle Download PDFInfo
- Publication number
- CN201546695U CN201546695U CN2009200350141U CN200920035014U CN201546695U CN 201546695 U CN201546695 U CN 201546695U CN 2009200350141 U CN2009200350141 U CN 2009200350141U CN 200920035014 U CN200920035014 U CN 200920035014U CN 201546695 U CN201546695 U CN 201546695U
- Authority
- CN
- China
- Prior art keywords
- rotary
- cylinder body
- bridle
- piston
- seal structure
- 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
Images
Landscapes
- Sealing Devices (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to the technical field of oil well logging instruments, in particular to a seal structure of a rotary bridle which mainly resolves the problems in the prior art that after being deformed, O-shaped seal rings has large resistance and leads the rotary bridle to be not able to work. The adopted technical scheme is as follows: the seal structure of a rotary bridle comprises a cylinder body, a rotary piston, a balancing oil tank and the rotating bearing, wherein the outer side of the rotary piston is covered by the cylinder body, the balancing oil tank and the rotating bearing are arranged between the a cylinder body and the rotary piston, and the rotating bearing is positioned on the lower portion of the balancing oil tank. The seal structure of the rotary bridle is characterized in that the rotary piston is connected with the cylinder body through a T-shaped seal ring. Compared with the prior art, the seal structure of the rotary bridle has the advantages of excellent hermeticity.
Description
Technical field
The utility model relates to the oil well logging instrument technical field, is specifically related to a kind of hermetically-sealed construction of rotary headstall.
Background technology
At present, oil well logging instrument is for satisfying the HTHP working environment, and the sealing means of twice O type circle is all adopted in the coupling part.In the design of rotary headstall, prolong and used this sealing means.Rotary headstall is that winding apparatus is separated in unpowered spinning, is furnished with the oil pressure balance bunker, job requirement can be rotated under as far as possible little rotating torque, but adopt twice O type circle sealing back because the sealing of O type circle is the typical structure of static seal, the two seals circle for another road sealing when one seal failure as the insurance design, the two seals circle is out of shape simultaneously under the acting in conjunction of ambient pressure and internal pressure (internal and external pressure balance), can not the execution requirement thereby formed the easy rotating part that makes of great resistance.
Summary of the invention
The purpose of this utility model provides a kind of hermetically-sealed construction of rotary headstall, and the O RunddichtringO distortion back resistance that exists with the solution prior art is big, the problem that causes rotary headstall to work.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is: a kind of hermetically-sealed construction of rotary headstall, comprise cylinder body, rotary-piston, balance cargo tank and rolling bearing, the rotary-piston outside is coated with cylinder body, is provided with balance cargo tank and rolling bearing between cylinder body and the rotary-piston, rolling bearing is arranged on balance cargo tank bottom, it is characterized in that: described rotary-piston connects with cylinder body by the T-shape sealing ring.
Be provided with between above-mentioned T-shape sealing ring and the rolling bearing and set upright band.
Compared with prior art, advantage of the present utility model is as follows:
Good airproof performance: according to inside and outside pressing weighing apparatus, pressure reduction is zero situation in theory, the design of former twice O RunddichtringO is changed over the design of one T RunddichtringO, in order to improve the piston equilibrium problem that one sealing ring brings, specially increased and set upright band, the axiality that can better keep piston and cylinder body makes sealing reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Description of reference numerals is as follows:
The 1-cylinder body, the 2-rotary-piston, 3-balance cargo tank, the 4-rolling bearing, 5-sets upright band, 6-T-shape sealing ring
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done detailed description.
Referring to Fig. 1, a kind of hermetically-sealed construction of rotary headstall, comprise cylinder body 1, rotary-piston 2, balance cargo tank 3 and rolling bearing 4, rotary-piston 2 outsides are coated with cylinder body 1, be provided with balance cargo tank 3 and rolling bearing 4 between cylinder body 1 and the rotary-piston 2, rolling bearing 4 is arranged on balance cargo tank 3 bottoms, and described rotary-piston 2 connects with cylinder body 1 by T-shape sealing ring 6, is provided with to set upright between described T-shape sealing ring 6 and the rolling bearing 4 and is with 5.
Claims (2)
1. the hermetically-sealed construction of a rotary headstall, comprise (1) cylinder body, (2) rotary-piston, (3) balance cargo tank and rolling bearing (4), rotary-piston (2) outside is coated with cylinder body (1), be provided with balance cargo tank (3) and rolling bearing (4) between cylinder body (1) and the rotary-piston (2), rolling bearing (4) is arranged on balance cargo tank (3) bottom, it is characterized in that: described rotary-piston (2) connects with cylinder body (1) by T-shape sealing ring (6).
2. the hermetically-sealed construction of a kind of rotary headstall as claimed in claim 1 is characterized in that: be provided with between described T-shape sealing ring (6) and the rolling bearing (4) and set upright band (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200350141U CN201546695U (en) | 2009-10-14 | 2009-10-14 | Seal structure of rotary bridle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200350141U CN201546695U (en) | 2009-10-14 | 2009-10-14 | Seal structure of rotary bridle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546695U true CN201546695U (en) | 2010-08-11 |
Family
ID=42601869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200350141U Expired - Fee Related CN201546695U (en) | 2009-10-14 | 2009-10-14 | Seal structure of rotary bridle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041990A (en) * | 2009-10-14 | 2011-05-04 | 西安威尔罗根能源科技有限公司 | Sealing structure of rotary bridle |
-
2009
- 2009-10-14 CN CN2009200350141U patent/CN201546695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041990A (en) * | 2009-10-14 | 2011-05-04 | 西安威尔罗根能源科技有限公司 | Sealing structure of rotary bridle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2357316A3 (en) | Downhole tool having setting valve for packing element | |
| CN201546695U (en) | Seal structure of rotary bridle | |
| CN102041990A (en) | Sealing structure of rotary bridle | |
| CN102269273B (en) | Air cylinder leakproof structure and sealing material thereof | |
| CN203161160U (en) | Blowout preventer wedge disc | |
| CN202756337U (en) | Hydraulic cylinder for car dumper | |
| CN205780529U (en) | A kind of sealing structure of oil-pressure damper | |
| CN200975487Y (en) | Sealed ring for oil cylinder | |
| CN202546076U (en) | Rotary joint | |
| CN201851663U (en) | High-speed oil seal with combined rubber | |
| CN206458816U (en) | A kind of combined type piston sealing piece | |
| CN205401294U (en) | Hydro -pneumatic suspension cylinder | |
| CN204419969U (en) | Vibration absorber sealing structure | |
| CN202500848U (en) | Manual reversing unloading valve | |
| CN207453925U (en) | Oil drilling rotating seal | |
| CN203051760U (en) | Sealing gasket | |
| CN202913949U (en) | Fluidic type hydro-percussive hammer for increase of drilling speed | |
| CN201507684U (en) | High-temperature-resistant anti-lock ball valve | |
| CN207634601U (en) | Shock absorber packing gland unidirectionally seals air valve structure | |
| CN203571039U (en) | Case sealing structure for automobile power steering device | |
| CN203335830U (en) | Piston | |
| CN204253272U (en) | Oil hydraulic motor | |
| CN209539317U (en) | A kind of metallic framework self-supporting resealing | |
| CN203413222U (en) | Sealing device for valve shaft of butterfly valve | |
| CN201121676Y (en) | Double-safety sealing gas spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Seal structure of rotary bridle Effective date of registration: 20111221 Granted publication date: 20100811 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Weier Rogan Energy Technology Co., Ltd.|Xu Peng Registration number: 2011990000503 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120815 Granted publication date: 20100811 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Weier Rogan Energy Technology Co., Ltd.|Xu Peng Registration number: 2011990000503 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Seal structure of rotary bridle Effective date of registration: 20121218 Granted publication date: 20100811 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Weier Rogan Energy Technology Co., Ltd.|Xu Peng Registration number: 2012990000813 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161102 Granted publication date: 20100811 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Weier Rogan Energy Technology Co., Ltd.|Xu Peng Registration number: 2012990000813 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20181014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |