CN217842609U - Sealing device of speed reduction structure of dragging device of low-yield liquid well - Google Patents
Sealing device of speed reduction structure of dragging device of low-yield liquid well Download PDFInfo
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- CN217842609U CN217842609U CN202221580796.9U CN202221580796U CN217842609U CN 217842609 U CN217842609 U CN 217842609U CN 202221580796 U CN202221580796 U CN 202221580796U CN 217842609 U CN217842609 U CN 217842609U
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- oil
- end cover
- gas vent
- sealing device
- sprue
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Abstract
The utility model discloses a low liquid well drive arrangement speed reduction structure's sealing device that produces, include: transmission shaft, end cover, oil blocking cover and skeleton oil blanket, the end cover suit is in on the transmission shaft, and be equipped with bearing and skeleton oil blanket between end cover and the transmission shaft, skeleton oil blanket outside installation oil blocking cover simultaneously, oil blocking cover with end cover fixed connection, in addition the end cover sets up the oil gallery in skeleton oil blanket below the upper portion of end cover is equipped with the gas vent, discharge valve is installed in the gas vent outside, run through about the gas vent the end cover, and install the air discharge member in the gas vent, the air discharge member turns right from a left side and is equipped with the first gas tank that link up, second gas tank and third gas tank, sprue and spring are installed to the second gas tank, the spring right side is fixed in the second gas tank, the left side then with the sprue is connected, the sprue is stopped up first gas tank. The utility model discloses can avoid appearing because the condition of inside and outside pressure differential and oil leak.
Description
Technical Field
The utility model relates to a drive arrangement seal structure technical field specifically is a low sealing device who produces liquid well drive arrangement reduction gears.
Background
The low liquid production well dragging device belongs to a device matched with an oil extraction pumping unit in an oil field, a gear speed reducing part of the dragging device adopts a rubber framework oil seal or a mechanical seal to implement sealing in the past, oil extraction equipment is operated continuously all the year round in the field, and wind, rain, cold and sunlight are blown to the sun, so that even if the oil-resistant and high-temperature-resistant rubber framework oil seal or the mechanical seal is used, the ideal oil impermeability requirement is hardly met, and the oil is a closed gear speed reducing device, the mechanical friction can generate higher temperature and pressure, and the leakage of lubricating oil of a speed reducer can be caused.
The main cause of leakage is the internal pressure of the reducer being greater than the external pressure. In the closed speed reducer, each pair of gears are meshed to generate friction heat, the temperature in the speed reducer is gradually increased along with the increase of the running time, so that the pressure in a box is increased, and the leakage is more serious along with the increase of the pressure difference, so that the sealing structure of the speed reducer of the dragging device needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low sealing device who produces liquid well drive device deceleration structure to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a sealing device of a deceleration structure of a dragging device of a low-yield liquid well comprises: transmission shaft, end cover, oil blocking cover and skeleton oil blanket, the end cover suit is in on the transmission shaft, and be equipped with bearing and skeleton oil blanket between end cover and the transmission shaft, skeleton oil blanket outside installation oil blocking cover simultaneously, oil blocking cover with end cover fixed connection, in addition the end cover sets up the oil gallery in skeleton oil blanket below, is in simultaneously the upper portion of end cover is equipped with the gas vent, discharge valve is installed in the gas vent outside, run through about the gas vent the end cover, and install the air discharge member in the gas vent, the air discharge member turns right from a left side and is equipped with the first gas groove that link up, second gas groove and third gas groove, sprue and spring are installed to the second gas inslot, the spring right side is fixed in the second gas groove, the left side then with the sprue is connected, and the sprue is plugged up first gas groove.
As a further aspect of the present invention: the oil return hole is obliquely arranged, the left side of the oil return hole penetrates through the left side wall of the end cover, the right side of the oil return hole is communicated with a gap between the framework oil seal and the oil blocking cover, and the left side of the oil return hole is lower than the right side of the oil return hole.
As a further aspect of the present invention: the diameter of the first air groove is larger than that of the third air groove, and the diameter of the first air groove is smaller than that of the second air groove.
As a further aspect of the present invention: the blocking block is made of shape memory alloy.
As a further aspect of the present invention: the exhaust member and the exhaust port are detachably mounted.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up gas vent and exhaust, can when inside temperature goes up and down, inside and outside the intercommunication, make inside and outside isobaric, avoid appearing because the condition of inside and outside pressure difference and oil leak, increased the oil gallery on current structure basis in addition, even the seepage appears in the skeleton oil blanket, the lubricating oil that spills over can not leak the outside of organism again.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a part a of the enlarged structure in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a sealing device of a deceleration structure of a dragging device for a low-yield liquid well includes: transmission shaft 1, end cover 2, fender oil cover 3 and skeleton oil blanket 22, 2 suits of end cover are in on the transmission shaft 1, and be equipped with bearing 21 and skeleton oil blanket 22 between end cover 2 and the transmission shaft 1, simultaneously skeleton oil blanket 22 outside installation keeps off oil cover 3, keep off oil cover 3 with end cover 2 fixed connection, in addition end cover 2 sets up oil gallery 23 in skeleton oil blanket 22 below, simultaneously the upper portion of end cover 2 is equipped with gas vent 24, oil gallery 23 slope sets up, and the left side is run through 2 left side walls of end cover, the right side then is the intercommunication gap department between skeleton oil blanket 22 and the fender oil cover 3, and the low right side in oil gallery 23 left side is high, and even the seepage appears in the skeleton oil blanket, the lubricating oil that spills over can not leak the outside of organism again, but flows back to the organism inside.
The first air groove 41 has a diameter larger than that of the third air groove 43, while the first air groove 41 has a diameter smaller than that of the second air groove 42. The jam 421 adopts shape memory alloy material, when the internal temperature of machine risees, in case reach the deformation temperature of jam 421, jam 421 can reduce, exposes partial first air duct 41, communicates with each other inside and outside this moment, can balanced pressure differential, and when inside and outside when appearing the pressure differential in addition, inside gas also can promote the jam 421 and move right and expose first air duct 41, until inside and outside isobaric, the condition of oil leak because of appearing inside and outside pressure differential can be avoided in this kind of setting, exhaust 4 with gas vent 24 demountable installation.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (5)
1. A sealing device of a deceleration structure of a dragging device of a low-yield liquid well comprises: transmission shaft (1), end cover (2), oil baffle lid (3) and skeleton oil blanket (22), its characterized in that: end cover (2) suit is in on transmission shaft (1), and be equipped with bearing (21) and skeleton oil blanket (22) between end cover (2) and transmission shaft (1), simultaneously skeleton oil blanket (22) outside installation oil shield (3), oil shield (3) with end cover (2) fixed connection, in addition end cover (2) set up oil gallery (23) in skeleton oil blanket (22) below, are in simultaneously the upper portion of end cover (2) is equipped with gas vent (24), discharge valve (241) are installed in gas vent (24) outside, run through about gas vent (24) end cover (2), and install air discharge spare (4) in gas vent (24), air discharge spare (4) turn right and are equipped with first air duct (41) that link up, second air duct (42) and third air duct (43), install in second air duct (42) sprue (421) and spring (422), spring (422) right side is fixed from a left side in second air duct (42), spring (422) the left side then with the sprue (421) are plugged up first air duct (41) and first sprue (421) are connected.
2. The sealing device of the deceleration structure of the dragging device of the low fluid production well according to the claim 1, characterized in that: the oil return hole (23) is obliquely arranged, the left side of the oil return hole penetrates through the left side wall of the end cover (2), the right side of the oil return hole is communicated with a gap between the framework oil seal (22) and the oil blocking cover (3), and the left side of the oil return hole (23) is low and the right side of the oil return hole is high.
3. The sealing device of the deceleration structure of the dragging device for the low production fluid well according to claim 1, wherein: the diameter of the first air groove (41) is larger than that of the third air groove (43), and the diameter of the first air groove (41) is smaller than that of the second air groove (42).
4. The sealing device of the deceleration structure of the dragging device of the low fluid production well according to the claim 1, characterized in that: the blocking block (421) is made of shape memory alloy.
5. The sealing device of the deceleration structure of the dragging device of the low fluid production well according to the claim 1, characterized in that: the exhaust member (4) and the exhaust port (24) are detachably mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580796.9U CN217842609U (en) | 2022-06-23 | 2022-06-23 | Sealing device of speed reduction structure of dragging device of low-yield liquid well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580796.9U CN217842609U (en) | 2022-06-23 | 2022-06-23 | Sealing device of speed reduction structure of dragging device of low-yield liquid well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842609U true CN217842609U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221580796.9U Active CN217842609U (en) | 2022-06-23 | 2022-06-23 | Sealing device of speed reduction structure of dragging device of low-yield liquid well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842609U (en) |
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2022
- 2022-06-23 CN CN202221580796.9U patent/CN217842609U/en active Active
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