CN206205834U - A kind of upper dress by-passing valve of helicoid hydraulic motor - Google Patents
A kind of upper dress by-passing valve of helicoid hydraulic motor Download PDFInfo
- Publication number
- CN206205834U CN206205834U CN201621215726.8U CN201621215726U CN206205834U CN 206205834 U CN206205834 U CN 206205834U CN 201621215726 U CN201621215726 U CN 201621215726U CN 206205834 U CN206205834 U CN 206205834U
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- China
- Prior art keywords
- valve
- hydraulic motor
- helicoid hydraulic
- upper dress
- spring
- 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
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Abstract
The utility model provides a kind of upper dress by-passing valve of helicoid hydraulic motor, including valve body, valve element, valve pocket, spring, the valve body inner bore upper end is sequentially loaded into valve pocket, spring, valve element, back-up ring, load hole card on the outside of the back-up ring, valve body external diameter has hole and inside to communicate, and sieve plate with holes is installed in hole.It is different from the valve element of installation from below, valve pocket for currently using, the upper dress by-passing valve of helicoid hydraulic motor described in the utility model, it is that valve body, valve pocket, valve element are installed from top, spring, security is higher, when damaging occurs in inner part, also will not fall off, the bypass valve arrangement is simple, safe and reliable, convenient disassembly, for ease of maintenaince.
Description
Technical field
The utility model is related to helicoid hydraulic motor technical field, the upper dress by-passing valve of more particularly to a kind of helicoid hydraulic motor.
Background technology
By-pass valve of screwdrill is arranged on the top of helicoid hydraulic motor, during its effect is going down process, it is allowed to drilling fluid
Flowed into drilling tool from annular space, allow drilling fluid that annular space is flowed into from drilling tool in trip-out process.It has bypass and closes two positions,
Bypass position is in during round trip, mud circulation in drill string is bypassed and do not work motor and enter annular space, so risen
Mud does not overflow on raised platform around a well during lower brill.When mud flow rate and pressure reach typical set value, valve element is moved down, and closes by-passing valve
Hole, now mud flow through motor, pressure energy into mechanical energy.When mud stream value is too small or during termination of pumping, produced pressure
When power is not enough to overcome spring force and stiction, spring handle valve element jack-up, bypass valve opening is in the open position again.
The by-passing valve for now using installs valve element and valve pocket from below, and is fixed with hole card, when gear hole card fails, can cause valve
Core and valve pocket come off, and influence downhole safety, and valve body inner bore requirement chromium plating, are scrapped when chromium coating damages then valve body.
The content of the invention
Regarding to the issue above, the purpose of this utility model is just to provide a kind of upper dress by-passing valve of helicoid hydraulic motor,.
The purpose of this utility model is achieved through the following technical solutions：
A kind of upper dress by-passing valve of helicoid hydraulic motor, including valve body, valve element, valve pocket, spring, the valve body inner bore upper end is successively
Load valve pocket, spring, valve element, back-up ring, load hole card on the outside of the back-up ring, valve body external diameter has hole and inside to communicate, installed in hole
Sieve plate with holes.
Further, valve element lower end external diameter has several holes, and the big end external diameter of valve element is equipped with O-ring.
Further, the valve pocket external diameter is equipped with several O-rings.
The upper dress by-passing valve of helicoid hydraulic motor described in the utility model having the beneficial effect that compared to existing technology：
1st, the upper dress by-passing valve of helicoid hydraulic motor described in the utility model, can directly take out more when valve element valve pocket is damaged
Change, do not interfere with valve body, simple structure, safe and reliable, convenient disassembly, for ease of maintenaince；
2 is different from the valve element of installation from below, valve pocket for currently using, the upper dress of helicoid hydraulic motor described in the utility model
By-passing valve, is to install valve body, valve pocket, valve element from top, and spring, security is higher, when damaging occurs in inner part, will not also be taken off
Fall.
The upper dress by-passing valve to helicoid hydraulic motor described in the utility model is carried out with reference to the accompanying drawings and detailed description
It is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of the upper dress by-passing valve of helicoid hydraulic motor described in the utility model；
Description of reference numerals is as follows：
1- valve body 2- valve element 3- valve pocket 4- spring 5- sieve plate 6- back-up ring 7- holes card 8,9- O-ring 10- holes.
Specific embodiment
As shown in figure 1, a kind of upper dress by-passing valve of helicoid hydraulic motor that present embodiment is provided, including valve body 1, valve element 2, valve
Set 3, spring 4, valve body inner bore upper end is sequentially loaded into valve pocket, spring, valve element, back-up ring 6, load hole card 7, valve body on the outside of the back-up ring
External diameter has hole and inside to communicate, and sieve plate 5 with holes is installed in hole.Valve element lower end external diameter has several holes 10, the big end of valve element
External diameter is equipped with O-ring 8.The valve pocket external diameter is equipped with several O-rings 9.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also should be regarded as with retouching.
The above is only and realize a kind of method of the invention, other ways of realization based on this structural principle also should be in the present invention
Within the scope of.
Claims (3)
1. a kind of upper dress by-passing valve of helicoid hydraulic motor, including valve body（1）, valve element（2）, valve pocket（3）, spring（4）, its feature exists
In the valve body（1）Endoporus upper end is sequentially loaded into valve pocket（3）, spring（4）, valve element（2）, back-up ring（6）, the back-up ring（6）Outside
Load hole card（7）, valve body external diameter has hole and inside to communicate, and sieve plate with holes is installed in hole（5）.
2. the upper dress by-passing valve of helicoid hydraulic motor according to claim 1, it is characterised in that the valve element（2）Lower end external diameter
There are several holes（10）, valve element（2）Big end external diameter is equipped with O-ring（9）.
3. the upper dress by-passing valve of helicoid hydraulic motor according to claim 1, it is characterised in that the valve pocket（3）External diameter is equipped with
Several O-rings（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621215726.8U CN206205834U (en) | 2016-11-11 | 2016-11-11 | A kind of upper dress by-passing valve of helicoid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621215726.8U CN206205834U (en) | 2016-11-11 | 2016-11-11 | A kind of upper dress by-passing valve of helicoid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206205834U true CN206205834U (en) | 2017-05-31 |
Family
ID=58752948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621215726.8U Expired - Fee Related CN206205834U (en) | 2016-11-11 | 2016-11-11 | A kind of upper dress by-passing valve of helicoid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206205834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127878A1 (en) * | 2017-12-25 | 2019-07-04 | 中国石油大学(华东) | Screw drilling tool by-pass valve with large displacement splitting function and using method thereof |
-
2016
- 2016-11-11 CN CN201621215726.8U patent/CN206205834U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127878A1 (en) * | 2017-12-25 | 2019-07-04 | 中国石油大学(华东) | Screw drilling tool by-pass valve with large displacement splitting function and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170727 Granted publication date: 20170531 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200727 Granted publication date: 20170531 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20191111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |