CN115822495A - Sealing liquid lubricating roller device for well finishing tool - Google Patents
Sealing liquid lubricating roller device for well finishing tool Download PDFInfo
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- CN115822495A CN115822495A CN202211686340.5A CN202211686340A CN115822495A CN 115822495 A CN115822495 A CN 115822495A CN 202211686340 A CN202211686340 A CN 202211686340A CN 115822495 A CN115822495 A CN 115822495A
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- roller
- roller shaft
- filling hole
- oil filling
- filler point
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Abstract
The invention discloses a sealed liquid lubrication roller device for a borehole finishing tool, which comprises a roller shaft and a roller sleeved on the roller shaft, wherein the center of the roller shaft is provided with a through axial oil filling hole, two ends of the axial oil filling hole are in threaded connection with plug nuts, the middle part of the roller shaft is provided with a radial oil filling hole communicated with the axial oil filling hole, two ends of an inner hole of the roller are symmetrically fixed with three pieces of tiles around the central line of the radial oil filling hole, an oil storage cavity communicated with the radial oil filling hole is reserved between the three pieces of tiles at the two ends, and liquid lubricating oil is filled in the oil storage cavity. Because of adopting liquid lubrication, the rotation of the roller on the roller shaft can be more flexible, the abrasion resistance in the drilling operation is reduced, and the drilling efficiency is improved. In addition, as the sealing between the roller and the roller shaft is reliable, drilling fluid can not enter the gap between the roller and the roller shaft, thereby avoiding the erosion effect on the matching surface and improving the service life by times.
Description
Technical Field
The invention relates to a sealing liquid lubricating roller device for a well finishing tool, and belongs to the technical field of well finishing tools.
Background
At present, rollers and roller shafts in roller type working parts of domestic well hole finishing tools are mainly in open connection, the rollers and the roller shafts are in clearance fit, and a sealing device is not provided. For example, the invention has the patent number of 201110432794.5, and the invention creates the Chinese invention patent named as the self-lubricating method and structure of roller parts of roller stabilizers and reaming devices, the patent adopts a self-lubricating structure, but the lubricating grease adopted by the structure has poor lubrication due to poor fluidity, the rotation between the roller and the roller shaft is not flexible, and the roller shaft are abraded too fast and scrapped in advance; and the O-shaped ring is adopted for sealing, so that the sealing effect is poor and the service life is short.
Disclosure of Invention
The invention aims to provide a sealing liquid lubrication roller device for a well hole trimming tool, which solves the problem that impurities in drilling fluid enter a gap between a roller and a roller shaft to cause clamping stagnation of the roller and the roller shaft, adopts liquid lubrication to ensure that the roller rotates on the roller shaft more flexibly, has small abrasion resistance in drilling operation, improves the drilling efficiency, and also solves the problem of short service life caused by sealing failure.
The technical scheme of the invention is as follows: the utility model provides a sealed liquid lubrication roller device for well finishing tool, including roller shaft and the gyro wheel of cover on the roller shaft, set up the axial oil filler point that runs through at the center of roller shaft, there is the plug screw at the both ends threaded connection of axial oil filler point, set up the radial oil filler point with axial oil filler point intercommunication in the middle part of roller shaft, be fixed with three openings tiles about the central line symmetry of radial oil filler point at the hole both ends of gyro wheel, reserve the oil storage chamber that has and radial oil filler point intercommunication between the three openings tiles at both ends, it has liquid lubricating oil to fill in the oil storage intracavity.
Furthermore, the three-open bush is composed of three arc-shaped bush pieces which are equally divided.
Furthermore, dustproof rings and BA rings are symmetrically arranged at two ends of an inner hole of the roller.
Due to the adoption of the technical scheme, the invention has the advantages that:
1. because of adopting liquid lubrication, the rotation of the roller on the roller shaft can be more flexible, the abrasion resistance in the drilling operation is reduced, and the drilling efficiency is improved.
2. Because the roller and the roller shaft are reliably sealed, drilling fluid cannot enter a gap between the roller and the roller shaft, so that the erosion effect on the matching surface of the roller and the roller shaft is avoided, and the service life is prolonged by times.
3. After long-time drilling operation, the lubricating liquid has slight leakage, can be supplemented by unscrewing the plug, and is simple and convenient to operate.
4. Because the three-opening tile for supporting adopts the PEEK nonmetal material which has good strength and wear resistance, the metal friction between the roller and the roller shaft can be isolated, the abrasion of the roller and the roller shaft is reduced, and the service life is prolonged.
5. The three open tiles are worn to a certain degree, can be conveniently replaced without scrapping the roller and the roller shaft, and has low use and maintenance cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of a three-tile.
In the figure: 1-roller shaft; 2-a roller; 3-axial oil filler hole; 4-three tiles; 5-a dustproof ring; 6-BA ring; 7-a radial oil hole; 8-an oil storage cavity; 9-plug screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
The embodiment of the invention comprises the following steps: referring to fig. 1 and 2, the sealed liquid lubricated roller device for the borehole finishing tool comprises a roller shaft 1 and a roller 2 sleeved on the roller shaft 1, wherein an axial oil filling hole 3 penetrating through the roller shaft 1 is formed in the center of the roller shaft 1, two ends of the axial oil filling hole 3 are in threaded connection with plug bolts 9, a radial oil filling hole 7 communicated with the axial oil filling hole 3 is formed in the middle of the roller shaft 1, three pieces of tiles 4 are symmetrically fixed at two ends of an inner hole of the roller 2 relative to the center line of the radial oil filling hole 7, an oil storage cavity 8 communicated with the radial oil filling hole 7 is reserved between the three pieces of tiles 4 at two ends, and liquid lubricating oil is filled in the oil storage cavity 8. Referring to fig. 3, the three-split bush 4 is formed by three arc-shaped bearing bushes which are equally divided, is made of a PEEK nonmetal material, and has good strength and wear resistance, and plays a role in supporting and wear resistance. Dust ring 5 and BA circle 6 are installed to the hole both ends symmetry of gyro wheel 2, and dust ring 5 and BA circle 6 are the standard component, have the sealing action, prevent that drilling fluid from getting into in the clearance of gyro wheel and roller shaft. When the dust ring 5 slightly moves along with the roller in the axial direction, foreign matters adhered to the roller shaft can be scraped clean.
The working principle of the invention is as follows:
during drilling operation, the device is arranged on a borehole finishing tool, and when the device revolves together with the borehole finishing tool, the roller 2 rotates along the roller shaft 1 due to the reaction torque of the borehole wall. Through the combined movement of revolution and rotation, the roller 2 is tightly attached to the well wall, and the well wall is finished.
The device is installed on a well finishing tool and rotates together with the well finishing tool, so that the irregular well wall can be finished, the roundness and the coaxiality of the well wall are improved, and convenience is brought to subsequent smooth drilling operation.
Claims (3)
1. A sealed liquid lubricated roller device for a well finishing tool, comprising a roller shaft (1) and a roller (2) sleeved on the roller shaft (1), characterized in that: set up axial oil filler point (3) that run through at the center of roller shaft (1), both ends threaded connection at axial oil filler point (3) has plug screw (9), set up radial oil filler point (7) with axial oil filler point (3) intercommunication in the middle part of roller shaft (1), be fixed with three opening tile (4) at the hole both ends of gyro wheel (2) about the central line symmetry of radial oil filler point (7), reserve between three opening tile (4) at both ends and have oil storage chamber (8) with radial oil filler point (7) intercommunication, it has liquid lubricating oil to pack in oil storage chamber (8).
2. The sealing fluid lubricated roller device for a wellbore conditioning tool of claim 1, wherein: the three-opening bush (4) is composed of three arc-shaped bearing bushes which are equally divided.
3. The sealing fluid lubricated roller device for a wellbore conditioning tool of claim 1, wherein: dust ring (5) and BA circle (6) are installed symmetrically at the hole both ends of gyro wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211686340.5A CN115822495A (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubricating roller device for well finishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211686340.5A CN115822495A (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubricating roller device for well finishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115822495A true CN115822495A (en) | 2023-03-21 |
Family
ID=85518619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211686340.5A Pending CN115822495A (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubricating roller device for well finishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115822495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044881A (en) * | 2023-03-30 | 2023-05-02 | 河北邦德威电力器材股份有限公司 | Anticorrosive wind-powered electricity generation crab-bolt and production assembly quality thereof |
-
2022
- 2022-12-27 CN CN202211686340.5A patent/CN115822495A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044881A (en) * | 2023-03-30 | 2023-05-02 | 河北邦德威电力器材股份有限公司 | Anticorrosive wind-powered electricity generation crab-bolt and production assembly quality thereof |
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