CN215061186U - Automatic compensation grease lubricator for polish rod - Google Patents
Automatic compensation grease lubricator for polish rod Download PDFInfo
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- CN215061186U CN215061186U CN202121283279.0U CN202121283279U CN215061186U CN 215061186 U CN215061186 U CN 215061186U CN 202121283279 U CN202121283279 U CN 202121283279U CN 215061186 U CN215061186 U CN 215061186U
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- sleeve
- grease
- polish rod
- automatic compensation
- polished rod
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Abstract
The application provides a polished rod automatic compensation butter lubricator belongs to the petroleum machinery field. The grease feeding device comprises a sleeve movably sleeved on a polish rod, wherein the sleeve is provided with a cavity for storing grease and an opening at the top, and a grease inlet nozzle is arranged at the lower part of the sleeve and used for conveying the grease into the cavity; the piston is sleeved on the polish rod and movably connected with the inner wall of the upper part of the sleeve in an external mode; the locking cover is sleeved on the polished rod and covered on the top of the piston, and the locking cover is arranged in the opening of the sleeve; the grease chamber cover is arranged on the tops of the sleeve and the locking cover. The device can reduce the influence that the polished rod receives dry grinding wearing and tearing, fatigue wear, abrasive material wearing and tearing, can also reduce the polished rod and break off the risk, prolongs the life cycle of polished rod.
Description
Technical Field
The application relates to the field of petroleum machinery, in particular to a polish rod automatic compensation grease lubricator.
Background
The problems of surface damage of a polish rod of an oil pumping well and difficulty in sealing a well mouth are frequently encountered in field oil well management, and the problems of short packing use time, short polish rod replacement period, high labor intensity of workers and the like are caused.
The polish rod of the pumping well is a 'sucker rod' specially made for realizing the connection between the sucker rod and the rope hanger, is positioned at the uppermost part of the sucker rod and has the largest stress, and meanwhile, the polish rod is easy to be worn by abrasive materials, fatigue wear, crude oil leakage, corrosion wear and the like, and generally forms a failure process of wear-corrosion-fracture.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the application is to provide an automatic compensation grease lubricator for a polish rod, aiming at improving the problem that the polish rod of the existing pumping well is easy to wear.
The technical scheme of the application is as follows:
an automatic compensation grease lubricator for a polish rod, comprising:
the sleeve is movably sleeved on the polish rod, the sleeve is provided with a cavity for storing butter and an opening at the top, and a butter inlet nozzle is installed at the lower part of the sleeve and used for conveying the butter into the cavity;
the piston is movably sleeved on the polished rod and movably externally connected to the inner wall of the upper part of the sleeve;
the locking cover is sleeved on the polished rod and is covered on the top of the piston, and the locking cover is arranged in the opening of the sleeve;
a grease chamber cover located on the sleeve and on the top of the locking cover.
As one technical solution of the present application, the piston includes a connecting portion and a sealing portion that are integrally formed; the connecting part is movably sleeved on the polished rod through a nylon centering sleeve, and the outer side wall of the connecting part is externally connected to the inner side wall of the sleeve through a sealing ring; the sealing part is arranged on the connecting part and is sleeved on the polished rod.
As a technical scheme of this application, the sealing portion with be provided with the friction seal ring between the polished rod, the friction seal ring cup joint in on the polished rod, the sealing portion cup joint in on the friction seal ring.
As a technical scheme of this application, the locking lid cup joint in on the polished rod, and the lid is located on the top of sealing part, and the bottom butt in on the top of connecting portion.
As a technical scheme of this application, the locking lid with sealing portion screw thread is connected.
As a technical scheme of this application, butter chamber lid is U type column structure, and with the sleeve screw thread is connected.
As a technical scheme of this application, the polished rod the piston locking lid the sleeve and butter chamber lid coaxial setting.
As a technical scheme of this application, one side lower part of sleeve is seted up flutedly, the butter import mouth connect in the recess, and with the cavity is linked together.
The beneficial effect of this application:
according to the automatic compensation grease lubricator for the polish rod, a grease adding structure with a piston is designed, the piston is driven by the polish rod to move up and down in a sleeve cavity, grease is continuously attached to the surface of the polish rod, and the grease in the sleeve cavity can be effectively utilized; can realize lubricating protection to the polished rod surface through this structure, reduce the polished rod and receive the influence of dry grinding wearing and tearing, fatigue wear, abrasive material wearing and tearing, reduce the polished rod and break off the risk, the life cycle of extension polished rod and the life cycle of packing reduce the cost consumption of polished rod packing, and the rate when improving oil recovery simultaneously has improved the field management level of oil well.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of an automatic compensation grease lubricator for a polish rod according to an embodiment of the present application.
Icon: 1-a polish rod; 2-a sleeve; 3-a cavity; 4-butter inlet nozzle; 5-locking cover; 6-butter cavity cover; 7-a connecting part; 8-a sealing part; 9-nylon centralizing sleeve; 10-a sealing ring; 11-a friction seal ring; 12-grooves.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper" and "lower" are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and operation, and thus, should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1, the present application provides an automatic compensation grease lubricator for a polish rod, comprising a sleeve 2 movably sleeved on a polish rod 1, wherein the sleeve 2 has a cavity 3 for storing grease and an open top, a grease inlet nozzle 4 is installed at one side of the lower part of the sleeve 2, and the grease inlet nozzle 4 is communicated with the cavity 3 and used for delivering grease into the cavity 3; meanwhile, the piston can be movably sleeved on the polish rod 1 along with the polish rod 1 and movably connected with the inner wall of the upper part of the sleeve 2 in an external mode; the locking cover 5 is sleeved on the polished rod 1 and covers the top of the piston, and the locking cover 5 is arranged in the opening of the sleeve 2; the grease chamber cover 6 is covered on the top of the sleeve 2 and the locking cover 5 and movably sleeved on the polish rod 1.
It should be noted that, in this embodiment, the sleeve 2 is made of a stainless steel material, and has a good pressure-bearing property, and does not affect any operation of the pumping unit at the wellhead; the butter inlet mouth 4 can realize that no shutdown is required to add butter into the cavity 3 of the sleeve 2. The outer side wall of the top of the sleeve 2 is provided with threads, and the grease cavity cover 6 is screwed on the top of the sleeve 2.
Further, in the present embodiment, the piston includes the connecting portion 7 and the sealing portion 8 which are integrally formed, and the sealing portion 8 is integrally formed at the top of the connecting portion 7 and has a radial length smaller than that of the connecting portion 7; the connecting part 7 is movably sleeved on the polished rod 1 through a nylon centering sleeve 9, and the outer side wall of the connecting part 7 is movably externally connected on the inner side wall of the sleeve 2 through a sealing ring 10; the sealing part 8 is movably sleeved on the polished rod 1 through a friction sealing ring 11. This sealing portion 8 and connecting portion 7 can realize with polish rod 1's sealed adjustment, guarantee the piston along with polish rod 1's motion, the piston moves from top to bottom in cavity 3, and effectual extrusion butter makes it adhere to on polish rod 1.
In this embodiment, the locking cover 5 is covered on the top of the sealing portion 8, and the bottom abuts on the top of the connecting portion 7.
Further, a friction sealing ring 11 is arranged between the sealing part 8 and the polished rod 1, the friction sealing ring 11 is sleeved on the polished rod 1, and the sealing part 8 is sleeved on the friction sealing ring 11. The frictional sealing ring 11 can improve the sealing performance between the piston and the polish rod 1, so that the piston can move up and down along with the movement of the polish rod 1, and further the piston can move up and down in the cavity 3, and effectively extrude and attach the grease in the cavity 3 to the polish rod 1.
Specifically, the locking cover 5 and the sealing portion 8 are connected by a screw thread. Meanwhile, the butter cavity cover 6 is in a U-shaped structure and is connected with the sleeve 2 through screw threads.
In this embodiment, the polish rod 1, the piston, the locking cap 5, the sleeve 2, and the grease chamber cap 6 are coaxially disposed.
In addition, a groove 12 is formed in the lower portion of one side of the sleeve 2, and the grease inlet nozzle 4 is connected to the groove 12 and communicated with the cavity 3. The groove 12 is a channel for adding butter, and the butter adding process is not affected by the upward and downward movement of the pumping unit.
It is noted that the device is applied in field on 12-9 wells inclined in Wangdong of Wang court management area of oil production plant in Jianghan, 9 months and 28. The well belongs to a well with high salt content, the well mouth is difficult to seal, the well mouth carries salt, and packing is required to be replaced once every two weeks. This well 9 months No. 24 change packing, No. 28 installation the device, the well head has the salt phenomenon during the installation, and the well head does not have the salt phenomenon after installing the device two weeks later, and can reach sealed effect through fastening packing two weeks later, uses 40 days, extension packing live time 26 days.
Simultaneously, can when the operation completion, well head trade packing box or trade during operations such as polished rod 1, unload the gland on the former packing box, install this device, fill up the butter in cavity 3 inside, tighten butter chamber lid 6, the elasticity of adjustment piston and polished rod 1 can. After the oil well is pumped, the grease can be added through the grease inlet nozzle 4 without stopping pumping.
In summary, in the polish rod automatic compensation grease lubricator, a grease adding structure with a piston is designed, the piston is driven by the polish rod 1 to move up and down in the cavity 3 of the sleeve 2, so that grease is continuously attached to the surface of the polish rod 1, and the grease in the cavity 3 of the sleeve 2 can be effectively utilized; can realize through this structure lubricating protection to polished rod 1 surface, reduce polished rod 1 and receive the influence of dry grinding wearing and tearing, fatigue wear, abrasive wear, reduce polished rod 1 and break off the risk, prolong polished rod 1's life cycle and the life cycle of packing, reduce the cost consumption of polished rod 1 packing, the rate when improving oil recovery simultaneously has improved the field management level of oil well.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. The utility model provides a polished rod automatic compensation butter lubricator which characterized in that includes:
the sleeve is movably sleeved on the polish rod, the sleeve is provided with a cavity for storing butter and an opening at the top, and a butter inlet nozzle is installed at the lower part of the sleeve and used for conveying the butter into the cavity;
the piston is movably sleeved on the polished rod and externally connected to the inner wall of the sleeve in a vertically movable manner;
the locking cover is sleeved on the polished rod and is covered on the top of the piston, and the locking cover is arranged in the opening of the sleeve;
a grease chamber cover located on the sleeve and on the top of the locking cover.
2. The polish rod automatic compensation grease lubricator of claim 1, wherein the piston comprises an integrally formed connecting portion and sealing portion; the connecting part is movably sleeved on the polished rod through a nylon centering sleeve, and the outer side wall of the connecting part is externally connected to the inner side wall of the sleeve through a sealing ring; the sealing part is arranged on the connecting part and movably sleeved on the polished rod.
3. The polish rod automatic compensation grease lubricator of claim 2, wherein a friction sealing ring is arranged between the sealing part and the polish rod, the friction sealing ring is sleeved on the polish rod, and the sealing part is sleeved on the friction sealing ring.
4. The polish rod automatic compensation grease lubricator of claim 2, wherein the locking cover is sleeved on the polish rod and is arranged on the top of the sealing part, and the bottom abuts on the top of the connecting part.
5. The polish rod automatic compensation grease lubricator of claim 4, wherein the locking cap is threaded with the sealing portion.
6. The polish rod automatic compensation grease lubricator of claim 1, wherein the grease chamber cover is of a U-shaped configuration and is threadably connected to the sleeve.
7. The polish rod automatic compensation grease lubricator of claim 1, wherein the polish rod, the piston, the locking cap, the sleeve and the grease chamber cap are coaxially arranged.
8. The polish rod automatic compensation grease lubricator of claim 1, wherein a groove is formed in a lower portion of one side of the sleeve, and the grease inlet nozzle is connected to the groove and communicated with the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283279.0U CN215061186U (en) | 2021-06-09 | 2021-06-09 | Automatic compensation grease lubricator for polish rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283279.0U CN215061186U (en) | 2021-06-09 | 2021-06-09 | Automatic compensation grease lubricator for polish rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215061186U true CN215061186U (en) | 2021-12-07 |
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ID=79204909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121283279.0U Active CN215061186U (en) | 2021-06-09 | 2021-06-09 | Automatic compensation grease lubricator for polish rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215061186U (en) |
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2021
- 2021-06-09 CN CN202121283279.0U patent/CN215061186U/en active Active
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