CN213510452U - Sealed mining tricone bit with oil filler point - Google Patents
Sealed mining tricone bit with oil filler point Download PDFInfo
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- CN213510452U CN213510452U CN202022150925.8U CN202022150925U CN213510452U CN 213510452 U CN213510452 U CN 213510452U CN 202022150925 U CN202022150925 U CN 202022150925U CN 213510452 U CN213510452 U CN 213510452U
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- oil filler
- filler point
- lubricating grease
- sealed
- pin hole
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Abstract
The utility model relates to a take sealed mining tricone bit of oil filler point, including claw and stopper pin hole, the one end and the bearing chamber intercommunication of stopper pin hole, its characterized in that mills a drilling plane in the side of claw axle journal, it has the oil filler point to bore on the drilling plane, the one end of oil filler point is the oiling mouth, the other end and stopper pin hole intercommunication are equipped with the plug on the oiling drill way. The utility model has the advantages that: because the utility model discloses open in the side of gripper axle journal has the oil filler point, has shortened the oiling passageway effectively, when roller bit annotated lubricating grease, pegged graft lubricating grease filling system's filling head and oil filler point, the plug-in joint can make things convenient for the operating personnel operation more, has solved the manual work and has paintd notes lubricating grease, the defect such as inhomogeneous, not full of painting in the sealed bearing cavity to improve mining drill bit life greatly.
Description
Technical Field
The utility model belongs to the technical field of mining tricone bit, in particular to take sealed mining tricone bit of oil filler point.
Background
The mining tricone bit is widely used for mining metal and nonmetal mines, is a bit variety with large consumption, and the failure time of a bearing system is one of key factors for limiting the service life of the bit. The existing mining tri-cone rotary drill bit generally uses a sealed bearing system, a lubricating grease injection technology of the sealed cone rotary drill bit bearing system is a key technology of the bearing system work, and the lubricating grease injection quantity and the lubricating grease injection fullness directly influence the lubrication and cooling of the sealed cone rotary drill bit bearing system and the service life of the sealed cone rotary drill bit.
The process for injecting lubricating grease into the inner cavity of the bearing system of the original sealed roller bit is realized by manually smearing the lubricating grease by hand, and the lubricating grease smeared by hand flows into the plug pin hole through the oil filling hole and then enters the bearing system. The original oil injection hole is arranged at the tail part of the claw, the oil injection pore channel is longer, the oil injection is too laborious and time-consuming, and lubricating grease is wasted. The manual smearing and hand-pressing mode for injecting lubricating grease has the defects of uneven and unsaturated injection in the sealed bearing cavity, which seriously influences the cooling and lubricating of the bearing system and the service life of the sealed roller bit.
Disclosure of Invention
The utility model aims at providing a take sealed mining tricone bit of oil filler point to the inhomogeneous, not full characteristics of sealed roller bit bearing intracavity lubricating grease, increase bearing intracavity lubricating grease filling volume, extension bearing system uses the ageing, improves sealed mining roller bit life.
The purpose of the utility model is realized like this.
The utility model discloses a take sealed mining tricone bit of oil filler point, including claw and stopper pin hole, the one end and the bearing chamber intercommunication of stopper pin hole, its characterized in that mills a drilling plane in the side of claw axle journal, it has the oil filler point to bore on the drilling plane, the one end of oil filler point is the oiling mouth, the other end and stopper pin hole intercommunication are equipped with the plug on the oiling drill way.
As a further optimization of the utility model, the diameter of the oil filler hole is phi 8.9 mm.
The utility model has the advantages that: because the utility model discloses it has the oil filler point to open in the side of gripper axle journal, has shortened the oiling passageway effectively, and when roller bit annotated lubricating grease, pegged graft the filling head and the oiling mouth of negative pressure vacuum grease filling system, the plug-in joint can make things convenient for operating personnel's operation more, has solved the manual work and has paintd notes lubricating grease, and the defect such as inhomogeneous, not full of painting in the sealed bearing cavity to improve mining bit life greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the oil fill hole and the plug pin hole of FIG. 1 as viewed from the back of the tricone bit.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figures 1-2, the utility model discloses a take sealed mining tricone bit of oil filler point, including claw 1 and stopper pin hole 3, the one end and the bearing chamber intercommunication of stopper pin hole 3, its characterized in that mills a drilling plane 4 in the side of claw 1 axle journal, has bored oil filler point 2 on drilling plane 4, the one end of oil filler point 2 is the oiling mouth, and the other end is linked together with stopper pin hole 3, is equipped with plug 5 in the oiling drill way. The oil filler hole was tapped 1/8 inches with a tapping depth of 8 mm.
The diameter of the oil filling hole 2 is phi 8.9 mm.
When the roller bit is used for injecting lubricating grease, the filling head of the lubricating grease injection system is inserted into the oil injection hole, and the plug-in type joint can be operated by an operator more conveniently.
When lubricating grease is injected, a vacuum pump of a vacuum generation system is used for evacuating gas in a roller bit sealed bearing cavity to form a negative pressure state in the bearing cavity, the air evacuation rate reaches 100L/Min, the vacuum degree reaches more than 2mbar, and then the lubricating grease is injected into the bearing cavity from an oil filling hole 2 and a plug pin hole 3 in an oil pump high-pressure mode. After the lubricating grease is filled, the oil filling hole 2 is screwed down and blocked by the screwed plug 5, so that the lubricating grease is prevented from leaking.
Claims (2)
1. A sealed mining tricone bit with an oil filling hole comprises a tooth claw and a plug pin hole, wherein one end of the plug pin hole is communicated with a bearing cavity.
2. The sealed mining tricone bit with an oil hole of claim 1, wherein the diameter of the oil hole is phi 8.9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022150925.8U CN213510452U (en) | 2020-09-27 | 2020-09-27 | Sealed mining tricone bit with oil filler point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022150925.8U CN213510452U (en) | 2020-09-27 | 2020-09-27 | Sealed mining tricone bit with oil filler point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213510452U true CN213510452U (en) | 2021-06-22 |
Family
ID=76462769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022150925.8U Active CN213510452U (en) | 2020-09-27 | 2020-09-27 | Sealed mining tricone bit with oil filler point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213510452U (en) |
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2020
- 2020-09-27 CN CN202022150925.8U patent/CN213510452U/en active Active
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