CN205154074U - Rotoblast head structure - Google Patents
Rotoblast head structure Download PDFInfo
- Publication number
- CN205154074U CN205154074U CN201520916589.XU CN201520916589U CN205154074U CN 205154074 U CN205154074 U CN 205154074U CN 201520916589 U CN201520916589 U CN 201520916589U CN 205154074 U CN205154074 U CN 205154074U
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- shower nozzle
- spray
- top connection
- hole
- ring
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Abstract
The utility model discloses a rotoblast head structure, including the top connection and have the shower nozzle of jet orifice, be provided with the annular table rank in the inner wall front portion of top connection, all be provided with the bearing in the both sides on annular table rank, the shower nozzle afterbody passes behind the annular table rank of top connection inner wall and to pass through threaded connection with pressing the cap, is provided with the locking pin simultaneously between shower nozzle and pressure cap, be provided with glyd ring and wear ring between top connection and pressure cap, be provided with at the tail end of pressing the cap and keep off the ring, fender ring keep off on the tail end of pressing the cap through the circlip card of installing in top connection inner wall ring channel. The utility model discloses the hydrophthalmia hole of " windmill " shape is arranged to front end at the shower nozzle, makes the shower nozzle rotatory more effective like this, multiplely prevents that the measure of moving back can also avoid the shower nozzle and press the cap to return privately to buckle from the top connection droing. Cylindrical roller thrust bearing can bear great axial pressure simultaneously, alleviates the inside axial friction of instrument greatly, has prolonged the life of shower nozzle.
Description
Technical field
The utility model relates to a kind of rotoblast header structure, belongs to workover tool technical field.
Background technology
In oil recovery manufacturing process, often run into well and to shake out problem, particularly shake out when loose sand geological stratification even more serious.In order to avoid layer of sand enters in pit shaft, and form " casting bed " plugging hole in wellbore bottom, general employing abrator head washes away layer of sand, sand setting is fully stirred, thus effectively destroy casting bed, make sand and impurity be in suspended state all the time, then adopt conduit sand and impurity to be extracted out from wellbore bottom.But, existing abrator head in sand washing process, owing to being in the state of High Rotation Speed, easy generation is moved back button phenomenon and comes off from joint, and the working environment of abrator head is comparatively severe, and in high-speed rotation, axial frictional resistance is large, cause abrator head inter deterioration serious, application life reduces.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, sand washing Be very effective, effectively can avoid the rotoblast header structure that occurs moving back button obscission, long service life, to overcome the deficiencies in the prior art.
The technical solution of the utility model: a kind of rotoblast header structure, comprise top connection and the shower nozzle with spray-hole, the inwall front portion of top connection is provided with ring-shaped step, bearing is provided with in the both sides of ring-shaped step, shower nozzle afterbody is threaded connection with pressure cap through after the ring-shaped step of top connection inwall, is provided with locking pin between shower nozzle and pressure cap simultaneously; Between top connection and pressure cap, be provided with Glais ring and wear ring, the tail end of pressure cap is provided with baffle ring, described baffle ring is by being arranged on circlip block in top connection inwall cannelure on the tail end of pressure cap.
The front end of described shower nozzle is half elliptic, reduces the axial rub resistance of shower nozzle, shower nozzle is more easily goed deep into inside layer of sand; The top center of shower nozzle is provided with the first spray-hole, four the second spray-holes are provided with equably at the rear of the first spray-hole, be provided with four the 3rd spray-holes equably at the rear of the second spray-hole, and the second spray-hole and the 3rd spray-hole angle α are diametrically 20 ~ 30 °.Therefore, when High-Pressure Water sprays from the second spray-hole and the 3rd spray-hole, the reaction force that the current of the second spray-hole ejection produce is different from the direction of the reaction force that the current that the 3rd spray-hole sprays produce, according to hydraulic principle, now shower nozzle produces High Rotation Speed under hydraulic action, reaches the object rotating sand washing.
The center line of the first described spray-hole is concentric with the center line of shower nozzle, and the angle β of center line all and between the center line of shower nozzle of the second spray-hole and the 3rd spray-hole is 30 ~ 60 °.
The outer wall of described top connection offers screwed hole, and pressure cap is connected with shower nozzle through after this screwed hole by locking pin, anti-retaining button; Sealing polytetrafluoroethylene (PTFE) plug is installed simultaneously on screwed hole, avoids mud entering tool inner, cause corrosion.
The screw terminal of described sealing polytetrafluoroethylene (PTFE) plug is provided with guiding screw thread, therefore, when sealing polytetrafluoroethylene (PTFE) plug is screwed into screwed hole, first screwed hole is screwed into by the guide effect of the guiding screw thread on sealing polytetrafluoroethylene (PTFE) plug, when continuing to be screwed into, under the effect of top connection screwed hole, the polished rod part of sealing polytetrafluoroethylene (PTFE) plug forms tapping screw thread, and this tapping screw thread so just can be utilized to reach the effect of sealing.
The cross section of described baffle ring is trapezium structure, and the inclined-plane of this trapezium structure and the inwall of top connection are fitted.Baffle ring is blocked like this by circlip, pressure cap is blocked again by baffle ring, the benefit done so not only effectively can block pressure cap, prevent it from exiting, and the internal diameter of cannelure internal diameter higher than the sealing surface for sealing of installation circlip can be made, therefore, during installation pressure cap or when pressure cap is disassembled maintenance in top connection, effectively can avoid the Glais ring on the notch scratch pressure cap of the cannelure installing circlip and blow over wear ring, causing failure and seal failure are installed.
Between the rear portion and pressure cap of shower nozzle, be provided with O shape enclose and back-up ring, prevent mud entering tool internal corrosion structure.
Described bearing is roller thrust bearing.Roller thrust bearing can bear larger axial load, also significantly reduces the axial rub of tool interior, extends the application life of shower nozzle.
Owing to have employed technique scheme; the utility model has the advantage of: the utility model arranges ring-shaped step in the inwall front portion of top connection; then in the both sides of ring-shaped step, all bearing is set; shower nozzle is threaded connection through the ring-shaped step of top connection inwall and pressure cap; by locking pin, pressure cap and shower nozzle are connected and fixed simultaneously; and block baffle ring by check ring; baffle ring blocks pressure cap again; under the protection of multiple like this anti-back measure, shower nozzle or pressure cap can be effectively avoided to come off in top connection in the process of high-efficiency rotating.The hydrophthalmia hole of shower nozzle end " windmill " shape is arranged simultaneously, can more effectively produce from spin.Therefore, the utility model not only structure is simple, easy to assembly, and shower nozzle can produce spin at a high speed under the effect of High-Pressure Water, play the effect rotating sand washing, sand washing Be very effective, simultaneously by multiple anti-back measure, shower nozzle and pressure cap can be effectively avoided to occur moving back button obscission, the roller thrust bearing of top connection inwall ring-shaped step both sides can bear larger axial compression, greatly alleviates the axial rub of tool interior simultaneously, extends the application life of shower nozzle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1.
Description of reference numerals: 1-top connection, 2-baffle ring, 3-wear ring, 4-locking pin, 5-pressure cap, 6-shower nozzle, 7-circlip, 8-O shape is enclosed, 9-back-up ring, 10-Glais ring, 11-seals polytetrafluoroethylene (PTFE) plug, 12-spray-hole, 12.1-first spray-hole, 12.2-second spray-hole, 12.3-the 3rd spray-hole, 13-bearing, 14-ring-shaped step.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment of the present utility model: the structural representation of rotoblast header structure as shown in Figure 1, comprise top connection 1 and shower nozzle 6, the inwall front portion of top connection 1 is provided with ring-shaped step 14, bearing 13 is provided with in the both sides of ring-shaped step 14, described bearing 13 is roller thrust bearing, the roller thrust bearing of both sides can bear larger axial compression, greatly alleviates the axial rub of tool interior simultaneously, extends the application life of shower nozzle; The tail end of shower nozzle 6 passes the ring-shaped step 14 of top connection 1 inwall, and is threaded connection with pressure cap 5, is provided with locking pin 4, anti-retaining button between shower nozzle 6 and pressure cap 5 simultaneously.Be provided with Glais ring 10 and wear ring 3 between pressure cap 5 and top connection 1, the tail end of described pressure cap 5 is provided with baffle ring 2, the side of baffle ring 2 is provided with circlip 7, and circlip 7 is arranged in the cannelure of top connection 1 afterbody.The outer wall thread hole of top connection 1 is provided with sealing polytetrafluoroethylene (PTFE) plug 11, avoids mud to enter in top connection 1; The screw terminal of described sealing polytetrafluoroethylene (PTFE) plug 11 is provided with guiding screw thread, therefore, when sealing polytetrafluoroethylene (PTFE) plug 11 is screwed into screwed hole, first screwed hole is screwed into by the guide effect of the guiding screw thread on sealing polytetrafluoroethylene (PTFE) plug 11, under the effect continuing the power that is screwed into and top connection screwed hole, the polished rod part of sealing polytetrafluoroethylene (PTFE) plug 11 forms tapping screw thread, and this tapping screw thread so just can be utilized to reach the effect of sealing.The tail end of pressure cap 5 is provided with baffle ring 2, described baffle ring 2 mainly plays a part indirectly to block pressure cap 5, baffle ring 2 is blocked by circlip 7, pressure cap 5 is blocked again by baffle ring 2, the benefit done so not only effectively can block pressure cap 5 to prevent from exiting, and the internal diameter of cannelure internal diameter higher than the sealing surface for sealing of installation circlip 7 can be made, therefore, during installation pressure cap 5 or when pressure cap 5 is disassembled maintenance in top connection 1, effectively can avoid the Glais ring 10 on the notch scratch pressure cap 5 of the cannelure installing circlip 7 and blow over wear ring 3, cause failure and seal failure are installed.See Fig. 1 and Fig. 2, the front end of described shower nozzle 6 is half elliptic, and shower nozzle 6 is more easily goed deep into inside layer of sand; The top center of shower nozzle 6 is provided with the first spray-hole 12.1, four the second spray-holes 12.2 are provided with equably at the rear of the first spray-hole 12.1, be provided with four the 3rd spray-holes 12.3 equably at the rear of the second spray-hole 12.2, and the second spray-hole 12.2 and the 3rd spray-hole 12.3 angle α are diametrically 20 °.Therefore, when High-Pressure Water sprays from the second spray-hole 12.2 and the 3rd spray-hole 12.3, the reaction force that the current that second spray-hole 12.2 sprays produce is different from the direction of the reaction force that the current that the 3rd spray-hole 12.3 sprays produce, according to hydraulic principle, now shower nozzle 6 produces High Rotation Speed under hydraulic action, reaches the object rotating sand washing.The center line of the first described spray-hole 12.1 is concentric with the center line of shower nozzle 6, and the angle β of center line all and between the center line of shower nozzle 6 of the second spray-hole 12.2 and the 3rd spray-hole 12.3 is 45 °.Between shower nozzle 6 inwall and pressure cap 5, be provided with O shape enclose 8 and back-up ring 9, avoid High-Pressure Water to enter gap between pressure cap 5 inwall and shower nozzle 6 outer wall, corrode its internal construction.
Claims (8)
1. a rotoblast header structure, comprise top connection (1) and the shower nozzle (6) with spray-hole (12), it is characterized in that: the inwall front portion of top connection (1) is provided with ring-shaped step (14), bearing (13) is provided with in the both sides of ring-shaped step (14), shower nozzle (6) afterbody is threaded connection with pressure cap (5) afterwards through the ring-shaped step (14) of top connection (1) inwall, is provided with locking pin (4) between shower nozzle (6) and pressure cap (5) simultaneously; Glais ring (10) and wear ring (3) is provided with between top connection (1) and pressure cap (5), the tail end of pressure cap (5) is provided with baffle ring (2), and described baffle ring (2) is by being arranged on circlip (7) block in top connection (1) inwall cannelure on the tail end of pressure cap (5).
2. rotoblast header structure according to claim 1, it is characterized in that: the front end of described shower nozzle (6) is half elliptic, the top center of shower nozzle (6) is provided with the first spray-hole (12.1), four the second spray-holes (12.2) are provided with equably at the rear of the first spray-hole (12.1), be provided with four the 3rd spray-holes (12.3) equably at the rear of the second spray-hole (12.2), and the second spray-hole (12.2) and the 3rd spray-hole (12.3) angle α are diametrically 20 ~ 30 °.
3. rotoblast header structure according to claim 2, it is characterized in that: the center line of described the first spray-hole (12.1) is concentric with the center line of shower nozzle (6), the angle β of center line all and between the center line of shower nozzle (6) of the second spray-hole (12.2) and the 3rd spray-hole (12.3) is 30 ~ 60 °.
4. rotoblast header structure according to claim 1, it is characterized in that: the outer wall of described top connection (1) offers screwed hole, pressure cap (5) is connected with shower nozzle (6) through after this screwed hole by locking pin (4), is provided with sealing polytetrafluoroethylene (PTFE) plug (11) on screwed hole simultaneously.
5. rotoblast header structure according to claim 4, is characterized in that: the screw terminal of described sealing polytetrafluoroethylene (PTFE) plug (11) is provided with guiding screw thread.
6. rotoblast header structure according to claim 1, is characterized in that: the cross section of described baffle ring (2) is trapezium structure, and the inwall of the inclined-plane of this trapezium structure and top connection (1) is fitted.
7. rotoblast header structure according to claim 1, is characterized in that: between the rear portion of shower nozzle (6) inwall and the inwall of pressure cap (5), be provided with O shape enclose (8) and back-up ring (9).
8. rotoblast header structure according to claim 1, is characterized in that: described bearing (13) is roller thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916589.XU CN205154074U (en) | 2015-11-17 | 2015-11-17 | Rotoblast head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916589.XU CN205154074U (en) | 2015-11-17 | 2015-11-17 | Rotoblast head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154074U true CN205154074U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520916589.XU Active CN205154074U (en) | 2015-11-17 | 2015-11-17 | Rotoblast head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
| CN106703725A (en) * | 2015-11-17 | 2017-05-24 | 贵州高峰石油机械股份有限公司 | Rotary sandblasting head |
-
2015
- 2015-11-17 CN CN201520916589.XU patent/CN205154074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703725A (en) * | 2015-11-17 | 2017-05-24 | 贵州高峰石油机械股份有限公司 | Rotary sandblasting head |
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |