CN219101281U - Sealing liquid lubrication roller structure for borehole trimming tool - Google Patents
Sealing liquid lubrication roller structure for borehole trimming tool Download PDFInfo
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- CN219101281U CN219101281U CN202223495320.8U CN202223495320U CN219101281U CN 219101281 U CN219101281 U CN 219101281U CN 202223495320 U CN202223495320 U CN 202223495320U CN 219101281 U CN219101281 U CN 219101281U
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- roller
- roller shaft
- oil filling
- filling hole
- storage cavity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses a sealing liquid lubrication roller structure for a well bore trimming tool, which comprises a roller shaft and a roller sleeved on the roller shaft, wherein a penetrating axial oil filling hole is formed in the center of the roller shaft, screw plugs are connected at two ends of the axial oil filling hole in a threaded manner, radial oil filling holes communicated with the axial oil filling hole are formed in the middle of the roller shaft, three split tiles are symmetrically fixed at two ends of an inner hole of the roller relative to 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 split tiles at two ends, and liquid lubricating oil is filled in the oil storage cavity. Because liquid lubrication is adopted, the roller wheel can rotate on the roller shaft more flexibly, the abrasion resistance in drilling operation is reduced, and the drilling efficiency is improved. In addition, because the roller and the roller shaft are reliably sealed, drilling fluid cannot enter the gap between the roller and the roller shaft, so that the erosion effect on the matching surface is avoided, and the service life is doubled.
Description
Technical Field
The utility model relates to a sealing liquid lubrication roller structure for a well bore trimming tool, and belongs to the technical field of well bore trimming tools.
Background
At present, the roller and the roller shaft in the roller type working part of the domestic borehole finishing tool are mainly connected in an open mode, the roller and the roller shaft are in clearance fit, and a sealing device is not arranged. For example, the patent number is 201110432794.5, and the utility model is named as a self-lubricating method and structure of a roller stabilizer and a roller part of a rower, and the self-lubricating structure is adopted in the Chinese utility model, but lubricating grease adopted by the self-lubricating structure is poor in fluidity to cause poor lubrication, and the rotation between a roller and a roller shaft is inflexible to cause the roller and the roller shaft to be worn out too quickly and scrapped in advance; moreover, 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 utility model aims to provide a sealing liquid lubrication roller structure for a well bore 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 enable the roller to rotate on the roller shaft more flexibly, has small abrasion resistance in drilling operation, improves the drilling efficiency, and solves the problem of short service life caused by sealing failure.
The technical scheme of the utility model is as follows: a sealing liquid lubrication roller structure for a well bore trimming tool comprises a roller shaft and a roller sleeved on the roller shaft, wherein a penetrating axial oil filling hole is formed in the center of the roller shaft, screw plugs are connected to the two ends of the axial oil filling hole in a threaded mode, radial oil filling holes communicated with the axial oil filling holes are formed in the middle of the roller shaft, three split tiles are symmetrically fixed to the two ends of an inner hole of the roller relative to the center line of the radial oil filling holes, an oil storage cavity communicated with the radial oil filling holes is reserved between the three split tiles at the two ends, and liquid lubricating oil is filled in the oil storage cavity.
Further, the three split tiles are formed by three equally-divided arc-shaped bearing bushes.
Further, dust-proof rings and BA rings are symmetrically arranged at two ends of the inner hole of the roller.
By adopting the technical scheme, the utility model has the advantages that:
1. because liquid lubrication is adopted, the roller wheel can rotate on the roller shaft more flexibly, the abrasion resistance in drilling operation is reduced, and the drilling efficiency is improved.
2. Because the roller and the roller shaft are sealed reliably, drilling fluid cannot enter the 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 doubled.
3. After long-time drilling operation, the lubricating liquid is slightly lost, and can be supplemented by unscrewing the plug, so that the operation is simple and convenient.
4. Because the three-split tile with the supporting function adopts PEEK nonmetallic material, the PEEK nonmetallic material has good strength and wear resistance, and can isolate metal friction between the roller and the roller shaft, so that the abrasion of the roller and the roller shaft is reduced, and the service life is prolonged.
5. The three-open-tile wear to a certain extent can be replaced conveniently without scrapping the roller and the roller shaft, and the use and maintenance cost is low.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of a three-split tile structure.
In the figure: 1-a roller shaft; 2-a roller; 3-an axial oil filling hole; 4-three tile opening; 5-a dust ring; 6-BA circle; 7-radial oil filling holes; 8-an oil storage cavity; 9-plugging.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.
Embodiments of the utility model: referring to fig. 1 and 2, the sealing liquid lubrication roller structure for a well bore trimming tool of the utility model comprises a roller shaft 1 and a roller 2 sleeved on the roller shaft 1, wherein an axial oil filling hole 3 penetrating through is formed in the center of the roller shaft 1, screw plugs 9 are connected to two ends of the axial oil filling hole 3 in a threaded manner, radial oil filling holes 7 communicated with the axial oil filling hole 3 are formed in the middle of the roller shaft 1, three split tiles 4 are symmetrically fixed at two ends of an inner hole of the roller 2 about the central line of the radial oil filling hole 7, an oil storage cavity 8 communicated with the radial oil filling holes 7 is reserved between the three split tiles 4 at two ends, and liquid lubricating oil is filled in the oil storage cavity 8. Referring to fig. 3, the tri-split bush 4 is composed of three equally-divided arc-shaped bearing bushes, and is made of a PEEK nonmetallic material, and the PEEK nonmetallic material has good strength and wear resistance, and plays roles in supporting and wear resistance. The dustproof rings 5 and the BA rings 6 are symmetrically arranged at two ends of the inner hole of the roller 2, and the dustproof rings 5 and the BA rings 6 are standard components and have sealing effect to prevent drilling fluid from entering a gap between the roller and a roller shaft. The dust ring 5 can scrape off the foreign matters adhered on the roller shaft when the roller moves slightly along with the axial direction.
The working principle of the utility model is as follows:
in the drilling operation, the device is mounted on the well bore trimming tool, and the roller 2 rotates along the roller shaft 1 due to the reactive torque of the well wall while revolving together with the well bore trimming tool. The roller 2 clings to the well wall through the combined motion of revolution and rotation, and performs polishing operation on the well wall.
The device is arranged on a well bore trimming tool and rotates together with the well bore trimming tool, so that the irregular well wall can be trimmed, the roundness and coaxiality of the well wall are improved, and convenience is provided for subsequent smooth drilling operation.
Claims (3)
1. A sealed liquid lubricated roller structure for a wellbore finishing tool, comprising a roller shaft (1) and a roller (2) sleeved on the roller shaft (1), characterized in that: the axial oil filling hole (3) penetrating through the center of the roller shaft (1) is formed, two ends of the axial oil filling hole (3) are connected with plugs (9) in a threaded mode, radial oil filling holes (7) communicated with the axial oil filling hole (3) are formed in the middle of the roller shaft (1), three-opening-tile (4) are symmetrically fixed at two ends of an inner hole of the roller (2) with respect to the center line of the radial oil filling holes (7), an oil storage cavity (8) communicated with the radial oil filling holes (7) is reserved between the three-opening-tile (4) at two ends, and liquid lubricating oil is filled in the oil storage cavity (8).
2. The sealing liquid lubricated roller structure for a wellbore finishing tool according to claim 1, wherein: the three split tiles (4) are formed by three equally-divided arc-shaped bearing bushes.
3. The sealing liquid lubricated roller structure for a wellbore finishing tool according to claim 1, wherein: dust-proof rings (5) and BA rings (6) are symmetrically arranged at two ends of an inner hole of the roller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223495320.8U CN219101281U (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubrication roller structure for borehole trimming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223495320.8U CN219101281U (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubrication roller structure for borehole trimming tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219101281U true CN219101281U (en) | 2023-05-30 |
Family
ID=86455945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223495320.8U Active CN219101281U (en) | 2022-12-27 | 2022-12-27 | Sealing liquid lubrication roller structure for borehole trimming tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219101281U (en) |
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2022
- 2022-12-27 CN CN202223495320.8U patent/CN219101281U/en active Active
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