CN221195764U - Rolling sealing structure of roller bit - Google Patents
Rolling sealing structure of roller bit Download PDFInfo
- Publication number
- CN221195764U CN221195764U CN202322995698.2U CN202322995698U CN221195764U CN 221195764 U CN221195764 U CN 221195764U CN 202322995698 U CN202322995698 U CN 202322995698U CN 221195764 U CN221195764 U CN 221195764U
- Authority
- CN
- China
- Prior art keywords
- roller
- lubricating grease
- rolling
- bearing
- bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 title abstract description 7
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 239000004519 grease Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011858 nanopowder Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a rolling sealing structure of a roller bit, wherein a roller and a bearing pin of the roller bit are in rolling connection through a roller and a steel ball, lubricating grease is added at the joint, and nano metal powder is uniformly mixed in the lubricating grease. According to the utility model, nano metal powder is adopted to replace a coating and can be adhered to the surface of a bearing and the micro pits on the surface of a rolling body, so that friction is reduced, a lubricating effect is achieved, and the service life of the bearing is prolonged; the lubricating grease is smeared in the groove, so that the roller can be prevented from scattering when the cone is arranged on the shaft neck.
Description
Technical Field
The utility model relates to the technical field of roller bit, in particular to a rolling sealing structure of a roller bit.
Background
The bearing life of a sealed mining drill bit is primarily dependent on bearing size, seal ring material and lubrication effects. Because of space and structural problems, great breakthroughs are difficult to achieve in optimizing the bearing structure. The industry now seeks to find breakthrough in the materials and manufacturing processes of the seal, starting from the failure mode of the seal ring. For the sliding seal bearing, the lubrication effect of the bearing can be greatly improved by adopting the process of the roller cone inner hole plating layer. However, for a heavy-duty rolling seal bearing, the coating is difficult to bear heavy load, and because the coating is thicker, when the coating is crushed by the rolling bodies, the bearing clearance is suddenly increased, and the bearing failure is accelerated.
Disclosure of Invention
The utility model aims to: in order to overcome the defects of the background technology, the utility model discloses a rolling sealing structure of a roller bit.
The technical scheme is as follows: according to the rolling sealing structure of the roller bit, the roller and the bearing pin of the roller bit are in rolling connection through the roller and the steel ball, lubricating grease is added at the connection part, and nano metal powder is uniformly mixed in the lubricating grease.
Further, the nano metal powder is nano copper powder or nano silver powder.
Furthermore, the lubricating grease is uniformly smeared in the inner and outer mounting grooves of the roller and the steel ball.
The beneficial effects are that: compared with the prior art, the utility model has the advantages that: the nano metal powder replaces a plating layer, and the powder diameter of the nano powder is extremely small, so that the nano powder cannot be aggregated and precipitated in lubricating grease, can be attached to the surface of a bearing and form a rolling body surface pit, and forms a low-shear film on the contact surface, thereby reducing the friction coefficient, reducing the tangential stress of the contact surface and delaying the fatigue crack growth speed, so that the service life of the bearing is prolonged.
Drawings
FIG. 1 is an overall cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional view of a cone of the present utility model;
Fig. 3 is a structural view of a bearing pin according to the present utility model.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
According to the rolling sealing structure of the roller bit shown in the figures 1-3, a roller 3 and a steel ball 4 are in rolling connection with each other, lubricating grease is smeared at the joint, nano metal powder with a proper proportion is uniformly mixed in the lubricating grease, and the nano metal powder is nano copper powder or nano silver powder.
After the thread of the bit is processed, the oil filling hole of the roller bit is continuously filled with lubricating grease without nano metal powder, so that the bearing and the compensation system are ensured to be filled with the lubricating grease, the roller bit 1 is mounted on a shaft neck, the steel ball 4 is mounted, a plug pin is inserted, and finally a plug pin hole is sealed, and the lubricating grease is uniformly smeared in the inner mounting groove and the outer mounting groove of the roller 3 and the steel ball 4.
Claims (3)
1. A roller bit rolling seal structure is characterized in that: the roller bit is characterized in that a roller (1) and a bearing pin (2) of the roller bit are in rolling connection through a roller (3) and a steel ball (4), lubricating grease is added at the joint, and nano metal powder is uniformly mixed in the lubricating grease.
2. The roller cone drill bit rolling seal structure of claim 1 wherein: the nanometer metal powder is nanometer copper powder or nanometer silver powder.
3. The roller cone drill bit rolling seal structure of claim 1 wherein: the lubricating grease is uniformly smeared in the inner and outer mounting grooves of the roller (3) and the steel ball (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995698.2U CN221195764U (en) | 2023-11-07 | 2023-11-07 | Rolling sealing structure of roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995698.2U CN221195764U (en) | 2023-11-07 | 2023-11-07 | Rolling sealing structure of roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195764U true CN221195764U (en) | 2024-06-21 |
Family
ID=91493462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322995698.2U Active CN221195764U (en) | 2023-11-07 | 2023-11-07 | Rolling sealing structure of roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195764U (en) |
-
2023
- 2023-11-07 CN CN202322995698.2U patent/CN221195764U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |