CN204099229U - A kind of reinforced protector head - Google Patents
A kind of reinforced protector head Download PDFInfo
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- CN204099229U CN204099229U CN201420505724.7U CN201420505724U CN204099229U CN 204099229 U CN204099229 U CN 204099229U CN 201420505724 U CN201420505724 U CN 201420505724U CN 204099229 U CN204099229 U CN 204099229U
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- protector
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- cavity
- bearing shell
- transmission shaft
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Abstract
The utility model provides a kind of reinforced protector head, comprises main body, protector housing and transmission shaft; Main body one end is deaerator construction section, and one end is protector housing construction section; Protector housing construction section is provided with blind hole along principal length direction, blind hole is provided with one-way valve; This protector head also comprises bearing shell, axle sleeve, sand-throwing ring, clearance hole and spiracle; Deaerator construction section is provided with the first joint and cavity; The axis hole that protector housing construction section is provided with the second joint and communicates with cavity; Bearing shell is arranged in axis hole, and transmission shaft is equipped with axle sleeve with bearing shell corresponding section; The part that transmission shaft is positioned at cavity is provided with mechanical sealing element; Sand-throwing ring is arranged on transmission shaft, covers mechanical sealing element; Cavity bottom arranges several clearance hole communicated with the external world; One blind via bottom has the spiracle communicated with the external world.The utility model can mechanical seal in protection device head, sand can also be discharged, ensure that motor runs well.
Description
Technical field
The utility model belongs to petroleum machinery protector field, especially relates to a kind of reinforced protector head.
Background technique
The head construction design of current submersible electric pump protector is all for normal hole condition, and well liquid sand content seldom (5/10000ths) carries out designing.Be exposed in well liquid during the arranging of mechanical seal in head.The material that its alignment bearing (bearing shell) adopts is tin bronze, and the spiracle of (U.S.) radar system is built-in.Plant the long-term non-stop run in oil well of situation electric pump is also no problem at this point, and the longest operating time can reach more than 10 years.But after oil field enters High water cut exploitation, in oil well, the sand content of well liquid is large, becomes commonplace phenomenon.The inner chamber of sand protector of many times head is filled with sand, and enters protector inside along built-in spiracle.The sand of these depositions has been ground away mechanical seal, and mill has not had tin bronze bearing shell, and serious has also rubbed protector axle.Unit generation judder, motor entering water burns.
Model utility content
Problem to be solved in the utility model is to provide a kind of reinforced protector head, not only can mechanical seal in protection device head, but also sand can be excreted, and ensures that motor runs well.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of reinforced protector head, comprises main body, protector housing and transmission shaft; Described main body one end is deaerator construction section, and the other end is protector housing construction section; Described protector housing construction section is provided with the blind hole of installing one-way valve along principal length direction; In addition, this protector head also comprises bearing shell, axle sleeve, sand-throwing ring, clearance hole and spiracle; Described deaerator construction section is provided with the first joint and cavity; The axis hole that described protector housing construction section is provided with the second joint and communicates with cavity; Described bearing shell is arranged in axis hole, and transmission draws up is equipped with axle sleeve with described bearing shell corresponding section; The part that described transmission shaft is positioned at cavity is provided with mechanical sealing element; Described sand-throwing ring is arranged on transmission shaft, and it to be in outside mechanical sealing element and to cover mechanical sealing element; Described cavity bottom arranges several clearance hole communicated with the external world; The bottom of blind hole described in one is had to be provided with the spiracle communicated with the external world.
Further, described first joint is included in screw hole and inner stopper that deaerator construction section end face is arranged.
Further, described second joint comprises the external thread structure on protector housing construction section.
Further, described clearance hole is provided with 6 along deaerator construction section circumferencial direction.
Further, described clearance hole vertically runs through cavity.
Further, described bearing shell is cemented carbide bearing shell.
Further, described axle sleeve is cemented carbide axle sleeve.
Further, described cavity is coaxial with axis hole, and cavity diameter is greater than shaft hole diameter.
Further, described bearing shell and the length of the axle sleeve section of cooperation are 1 ~ 1.5 times of transmission shaft diameter.
The advantage that the utility model has and good effect are:
1) newly-installed sand-throwing ring is with axle synchronous rotary, has covered mechanical seal, and mechanical sealing element can be protected to prevent sand to its erosion damage.
2) use cemented carbide axial sleeve of bushing, sand prevention performance is good, reduces vibration, improves stability.
3) clearance hole can prevent the deposition of the solid matters such as sand in protector head.
4) outgoing call sucker can prevent sand from directly directly entering protector inside by original internal respiration hole.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
A kind of reinforced protector head, as shown in Figure 1, comprises main body 1, protector housing 2 and transmission shaft 3; Described main body 1 one end is deaerator construction section 11, and the other end is protector housing construction section 12; Described protector housing construction section 12 is provided with the blind hole 13 of installing one-way valve 14 along main body 1 length direction; In addition, this protector head also comprises bearing shell 4, axle sleeve 5, sand-throwing ring 6, clearance hole 7 and spiracle 8; Described deaerator construction section 11 is provided with the first joint 111 and cavity 112; The axis hole 122 that described protector housing construction section 12 is provided with the second joint 121 and communicates with cavity 112; Described bearing shell 4 is arranged on the hole Duan Chu that axis hole 122 is press-fitted bearing shell 4, and transmission is taken out on 3, with described bearing shell 4 corresponding section, axle sleeve 5 is housed; The part that described transmission shaft 3 is positioned at cavity 112 is provided with mechanical sealing element 9; Described sand-throwing ring 6 is arranged on transmission shaft 3, and it to be in outside mechanical sealing element 9 and to cover mechanical sealing element 9; Several clearance hole 7 communicated with the external world is set bottom described cavity 112; Bottom as the blind hole of accompanying drawing 1 bottom is provided with the spiracle 8 communicated with the external world.It should be noted that, a spiracle 8 is only set.
Separately it should be noted that, sand-throwing ring 6, with transmission shaft 3 synchronous rotary, can protect mechanical sealing element 9, prevents sand to its erosion damage.
Wherein, described first joint 111 is included in screw hole 113 and inner stopper 114 that deaerator construction section end face is arranged, can easily install deaerator.
Wherein, described second joint 121 comprises the external thread structure 123 on protector housing construction section, and installation protector housing 2 that can be firm, in addition, after the protector housing 2 that has been threaded, can also weld a stiffening plate between protector housing 2 with main body 1.
Wherein, described clearance hole 7 is provided with 6 along deaerator construction section 11 circumferencial direction; preferably these clearance holes 7 are along the uniform setting of deaerator construction section 11 circumferencial direction, effectively can be discharged by sand, can prevent the deposition of the solid matters such as sand in protector head.
Wherein, described clearance hole 7 vertically runs through cavity 112.It should be noted that, clearance hole 7 is in bottom cavity 112, and sand-throwing ring 6 gets rid of the sand got off and discharges smoothly outside cavity 112.
Wherein, described bearing shell 4 is cemented carbide bearing shell, and described axle sleeve 5 is cemented carbide axle sleeve.The copper bearing shell generally adopted is changed into the cemented carbide friction pair that anti-grittiness can be good, reduce vibration, structure is more firm.
Wherein, described cavity 112 is coaxial with axis hole 122, and cavity 112 diameter is greater than axis hole 122 diameter.More be conducive to the location of transmission shaft 3 and the installation of mechanical sealing element 9 and sand-throwing ring 6.
Wherein, described bearing shell 4 and the length of axle sleeve 5 section of cooperation are 1 ~ 1.5 times of transmission shaft 3 diameter, stabilized structure, long service life.
It should be noted that, during assembling, generally in spiracle 8, plug screw is installed, when going into the well, will plug screw be taken off, open spiracle 8 and be convenient to breathe.The outgoing call sucker of such setting can prevent sand from directly directly entering protector inside by original internal respiration hole.
During submersible electric pump work, sand, with transmission shaft 3 synchronous rotary, gets rid of down by sand-throwing ring 6, discharges outside cavity 112 through clearance hole 7, protects mechanical sealing element 9 greatly like this, avoids sand to its erosion damage.Of the present utility modelly design successfully and promote the use of in time, making protector product have good cost performance.Its wide market, product has good competitive ability, can meet vast domestic and international customer demand.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (9)
1. a reinforced protector head, comprises main body (1), protector housing (2) and transmission shaft (3); Described main body (1) one end is deaerator construction section (11), and the other end is protector housing construction section (12); Described protector housing construction section (12) is provided with the blind hole (13) of installing one-way valve (14) along main body (1) length direction; It is characterized in that: also comprise bearing shell (4), axle sleeve (5), sand-throwing ring (6), clearance hole (7) and spiracle (8); Described deaerator construction section (11) is provided with the first joint (111) and cavity (112); The axis hole (122) that described protector housing construction section (12) is provided with the second joint (121) and communicates with cavity (112); Described bearing shell (4) is arranged in axis hole (122), and transmission shaft (3) is upper is equipped with axle sleeve (5) with described bearing shell (4) corresponding section; The part that described transmission shaft (3) is positioned at cavity (112) is provided with mechanical sealing element (9); Described sand-throwing ring (6) is arranged on transmission shaft (3), and it is in mechanical sealing element (9) outside and covers mechanical sealing element (9); Described cavity (112) bottom arranges several clearance hole (7) communicated with the external world; The spiracle (8) having the bottom of blind hole described in (13) to be provided with to communicate with the external world.
2. the reinforced protector head of one according to claim 1, is characterized in that: described first joint (111) is included in screw hole (113) and inner stopper (114) that deaerator construction section end face is arranged.
3. the reinforced protector head of one according to claim 1, is characterized in that: described second joint (121) comprises the external thread structure (123) on protector housing construction section (12).
4. the reinforced protector head of one according to claim 1, is characterized in that: described clearance hole (7) is provided with 6 along deaerator construction section (11) circumferencial direction.
5. the reinforced protector head of one according to claim 1, is characterized in that: described clearance hole (7) vertically runs through cavity (112).
6. the reinforced protector head of one according to claim 1, is characterized in that: described bearing shell (4) is cemented carbide bearing shell.
7. the reinforced protector head of one according to claim 1, is characterized in that: described axle sleeve (5) is cemented carbide axle sleeve.
8. the reinforced protector head of one according to claim 1, it is characterized in that: described cavity (112) is coaxial with axis hole (122), and cavity (112) diameter is greater than axis hole (122) diameter.
9. the reinforced protector head of one according to claim 1, is characterized in that: described bearing shell (4) and the length of axle sleeve (5) section of cooperation are 1 ~ 1.5 times of transmission shaft (3) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505724.7U CN204099229U (en) | 2014-09-03 | 2014-09-03 | A kind of reinforced protector head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505724.7U CN204099229U (en) | 2014-09-03 | 2014-09-03 | A kind of reinforced protector head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099229U true CN204099229U (en) | 2015-01-14 |
Family
ID=52267661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420505724.7U Active CN204099229U (en) | 2014-09-03 | 2014-09-03 | A kind of reinforced protector head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186792A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | High-temperature submersible motor protector |
-
2014
- 2014-09-03 CN CN201420505724.7U patent/CN204099229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186792A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | High-temperature submersible motor protector |
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