CN208347699U - A kind of thrust friction is secondary and drill bit - Google Patents
A kind of thrust friction is secondary and drill bit Download PDFInfo
- Publication number
- CN208347699U CN208347699U CN201820563619.7U CN201820563619U CN208347699U CN 208347699 U CN208347699 U CN 208347699U CN 201820563619 U CN201820563619 U CN 201820563619U CN 208347699 U CN208347699 U CN 208347699U
- Authority
- CN
- China
- Prior art keywords
- thrust
- attrition
- thrust surface
- column
- gear wheel
- 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
Abstract
The utility model discloses a kind of thrust friction pair and drill bits, belong to rock bit technical field.The thrust friction pair includes: gear wheel and tooth pawl；Tooth pawl is socketed in gear wheel, and tooth pawl has the first thrust surface and the second thrust surface, and gear wheel has third thrust surface and the 4th thrust surface, and the first thrust surface is oppositely arranged with third thrust surface, and the second thrust surface is oppositely arranged with the 4th thrust surface；Thrust block is provided on first thrust surface, thrust block offers hole, and the first anti-attrition column is provided in hole；Several second anti-attrition columns and several resistance to grinding columns are provided on second thrust surface.The service life of drill bit can be improved in the utility model thrust friction pair and drill bit.
Description
Technical field
The utility model relates to rock bit technical field, in particular to a kind of thrust friction pair and drill bit.
Background technique
Blasthole tricone rock bit is the main tool of surface mine perforation, mainly by tooth pawl, gear wheel and other a variety of small by zero
Part composition.Its working principle is that gear wheel surrounds matched tooth pawl spindle nose rotation while drill bit integrally revolves, thus broken
Rock.
Gear wheel inner hole, tooth pawl spindle nose and roller etc. constitute a complicated rolling bearing arrangement, bear radial force；Tooth pawl
Thrust surface and gear wheel thrust surface bear axial force.In drill bit use process, the huge axial force that drilling machine axis pressure generates makes tooth
The thrust surface of pawl and the thrust surface serious wear of gear wheel influence the entirety of high mining drill bit so as to cause the failure of entire drill bit
Service life.
Utility model content
The utility model provides that a kind of thrust friction is secondary and drill bit, solves or part solves prior art dens in dente pawl
The thrust surface serious wear of thrust surface and gear wheel, the technical issues of influencing the whole service life of high mining drill bit.
In order to solve the above technical problems, it includes: gear wheel and tooth pawl that the utility model, which provides a kind of thrust friction pair,；It is described
Tooth pawl is socketed in the gear wheel, and the tooth pawl has the first thrust surface and the second thrust surface, and the gear wheel has third thrust
Face and the 4th thrust surface, first thrust surface are oppositely arranged with the third thrust surface, second thrust surface and described the
Four thrust surfaces are oppositely arranged；Thrust block is provided on the third thrust surface, the thrust block offers hole, is arranged in the hole
There is the first anti-attrition column；Several second anti-attrition columns and several resistance to grinding columns are provided on 4th thrust surface.
Further, the height of the first anti-attrition column is greater than the depth in the hole.
Further, the height of the first anti-attrition column is greater than the 0.5-1mm of the depth in the hole.
Further, the height of several second anti-attrition columns and several resistance to grinding columns is consistent.
Further, several second anti-attrition columns and several uniform intervals of resistance to grinding column are arranged in the 4th thrust
On face.
Further, the material of the first anti-attrition column and the second anti-attrition column is silver-colored manganese alloy.
Further, the material of the first anti-attrition column and the second anti-attrition column is brass.
Further, the material of the resistance to grinding column is hard alloy.
Further, the material of the resistance to grinding column is air hardening steel.
The utility model also provides a kind of drill bit, and the drill bit includes that thrust friction is secondary.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Since tooth pawl is socketed in gear wheel, tooth pawl has the first thrust surface and the second thrust surface, and gear wheel has third thrust
Face and the 4th thrust surface, the first thrust surface are oppositely arranged with third thrust surface, and the second thrust surface is oppositely arranged with the 4th thrust surface,
Thrust block is provided on third thrust surface, thrust block offers hole, the first anti-attrition column is provided in hole, so, drilling machine axis pressure produces
Raw huge axial force makes the first anti-attrition column grind the solid lubricant to form powdery, improves being engaged between gear wheel and tooth pawl
Property, and thrust block improves the wearability between gear wheel and tooth pawl, due to being provided with several second anti-attrition columns on the 4th thrust surface
And several resistance to grinding columns, so, the huge responsive to axial force that drilling machine axis pressure generates leads in several second anti-attrition columns and several resistance to grinding columns
Cross anti-attrition column and improve occlusion property between gear wheel and tooth pawl, and the second resistance to grinding column improve it is wear-resisting between gear wheel and tooth pawl
Property, so that the third thrust surface of gear wheel and the 4th existing wearability of thrust surface is had good occlusion again, takes into account wear resistence and occlusion
Ability, to improve the whole service life of mining drill bit.
Detailed description of the invention
Fig. 1 is the secondary structural schematic diagram of drill bit thrust provided by the embodiment of the utility model friction；
Fig. 2 is the structural schematic diagram of gear wheel provided by the embodiment of the utility model；
Fig. 3 is the sectional view along A-A of Fig. 2；
Fig. 4 is the B-B direction cross-sectional view of Fig. 2；
Fig. 5 is the structural schematic diagram of tooth pawl provided by the embodiment of the utility model；
Fig. 6 is the structural schematic diagram of thrust block provided by the embodiment of the utility model.
Specific embodiment
Referring to Fig. 1-6, it includes: gear wheel 2 and tooth pawl 1 that the utility model embodiment, which provides a kind of thrust friction pair,.
Tooth pawl 1 is socketed in gear wheel 2, and tooth pawl 1 has the first thrust surface and the second thrust surface, and gear wheel 2 has third thrust
Face 2-1 and the 4th thrust surface 2-2, the first thrust surface are oppositely arranged with third thrust surface 2-1, and the second thrust surface stops with the described 4th
Pushing surface is oppositely arranged.
Thrust block 3 is provided on third thrust surface 2-1, thrust block offers hole, and the first anti-attrition column 4 is provided in hole.
Several second anti-attrition columns 5 and several resistance to grinding columns 6 are provided on 4th thrust surface 2-2.
Since tooth pawl 1 is socketed in gear wheel 2, tooth pawl 1 stops the application specific embodiment with the first thrust surface and second
Pushing surface, gear wheel 2 have third thrust surface 2-1 and the 4th thrust surface 2-2, and the first thrust surface is oppositely arranged with third thrust surface 2-1,
Second thrust surface is oppositely arranged with the 4th thrust surface 2-2, and thrust block 3 is provided on third thrust surface 2-1, and thrust block 3 offers
Hole is provided with the first anti-attrition column 4 in hole, so, the huge axial force that drilling machine axis pressure generates makes the grinding of the first anti-attrition column 4 form powder
The solid lubricant of shape improves the occlusion property between gear wheel 2 and tooth pawl 1, and thrust block 3 improves between gear wheel 2 and tooth pawl 1
Wearability, due to being provided with several second anti-attrition columns 5 and several resistance to grinding columns 6 on the 4th thrust surface 2-2, so, drilling machine axis pressure
The huge responsive to axial force generated improves gear wheel 2 and tooth by anti-attrition column 5 in several second anti-attrition columns 5 and several resistance to grinding columns 6
Occlusion between pawl 1, and the second resistance to grinding column 6 improves the wearability between gear wheel 2 and tooth pawl 1, makes the third thrust of gear wheel 2
Face 2-1 and the 4th existing wearability of thrust surface 2-2 have good occlusion again, wear resistence and occlusal ability are taken into account, to improve
The whole service life of mining drill bit.
The structure of the first anti-attrition column 4 and the second anti-attrition column 5 is discussed in detail.
The height of first anti-attrition column 4 is greater than the depth in hole, and the height of the first anti-attrition column is greater than the 0.5-1mm of the depth in hole,
Convenient for the first anti-attrition column 4 exposed hole a part, the huge axial force for generating drilling machine axis pressure grinds the first anti-attrition column 4, forms powder
The solid lubricant of shape.
The height of several second anti-attrition columns 5 and several resistance to grinding columns 6 is consistent, several second anti-attrition columns 5 with it is several wear-resisting
6 uniform intervals of column are arranged on the 4th thrust surface 2-2, make several second anti-attrition columns 5 and several resistance to 6 uniform forces of grinding column,
It improves service life.
The material of first anti-attrition column 4 and the second anti-attrition column 5 is silver-colored manganese alloy, the material of the first anti-attrition column 4 and the second anti-attrition column 5
Matter can also be brass, form solid lubricant, improve the occlusion property between gear wheel 2 and tooth pawl 1.
The material of resistance to grinding column 6 is hard alloy, and the material of resistance to grinding column 6 can also be air hardening steel, improve gear wheel 2 and tooth pawl 1 it
Between wearability.
The structure of thrust block 3 is discussed in detail.
The material of thrust block 3 is hard alloy, or air hardening steel improves the wearability between gear wheel 2 and tooth pawl 1.
The utility model also provides a kind of drill bit, and the drill bit includes that thrust friction is secondary, this pushes away the secondary specific structure ginseng of friction
At least have upper according to above-described embodiment due to originally pushing away the secondary whole technical solutions for using above-mentioned all embodiments of friction
All beneficial effects brought by the technical solution of embodiment are stated, this is no longer going to repeat them.
The utility model embodiment is introduced in order to become apparent from, is given from the application method of the utility model embodiment below
It introduces.
Tooth pawl 1 is socketed in gear wheel 2, tooth pawl 1 has the first thrust surface and the second thrust surface, and gear wheel 2 stops with third
Pushing surface 2-1 and the 4th thrust surface 2-2, the first thrust surface are oppositely arranged with third thrust surface 2-1, the second thrust surface and the 4th thrust
Face 2-2 is oppositely arranged.
Thrust block 3 is set on third thrust surface 2-1, meanwhile, hole is opened up in thrust block 3, the setting of the first anti-attrition column 4 is existed
In hole, the height of the first anti-attrition column is greater than the 0.5-1mm of the depth in hole, convenient for 4 exposed hole of the first anti-attrition column a part, drilling machine axis
The huge axial force that pressure generates makes the grinding of the first anti-attrition column 4 form the solid lubricant of powdery, improve gear wheel 2 and tooth pawl 1 it
Between occlusion, and thrust block 3 improves the wearability between gear wheel 2 and tooth pawl 1.
Several second anti-attrition columns 5 and several resistance to grinding columns 6 are set on the 4th thrust surface 2-2, and drilling machine axis pressure generates huge
Responsive to axial force is improved between gear wheel 2 and tooth pawl 1 in several second anti-attrition columns 5 and several resistance to grinding columns 6 by anti-attrition column 5
Occlusion property, and the second resistance to grinding column 6 improves the wearability between gear wheel 2 and tooth pawl 1, makes the third thrust surface 2-1 and the of gear wheel 2
The four existing wearabilities of thrust surface 2-2 have good occlusion again, wear resistence and occlusal ability are taken into account, to improve mining drill bit
Whole service life.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of thrust friction is secondary characterized by comprising gear wheel and tooth pawl；
The tooth pawl is socketed in the gear wheel, and the tooth pawl has the first thrust surface and the second thrust surface, and the gear wheel has
Third thrust surface and the 4th thrust surface, first thrust surface are oppositely arranged with the third thrust surface, second thrust surface
It is oppositely arranged with the 4th thrust surface；
Thrust block is provided on the third thrust surface, the thrust block offers hole, and the first anti-attrition column is provided in the hole；
Several second anti-attrition columns and several resistance to grinding columns are provided on 4th thrust surface.
2. thrust friction according to claim 1 is secondary, it is characterised in that:
The height of the first anti-attrition column is greater than the depth in the hole.
3. thrust friction according to claim 2 is secondary, it is characterised in that:
The height of the first anti-attrition column is greater than the 0.5-1mm of the depth in the hole.
4. thrust friction according to claim 1 is secondary, it is characterised in that:
The height of several second anti-attrition columns and several resistance to grinding columns is consistent.
5. thrust friction according to claim 1 is secondary, it is characterised in that:
Several second anti-attrition columns and several uniform intervals of resistance to grinding column are arranged on the 4th thrust surface.
6. thrust friction according to claim 1 is secondary, it is characterised in that:
The material of the first anti-attrition column and the second anti-attrition column is silver-colored manganese alloy.
7. thrust friction according to claim 1 is secondary, it is characterised in that:
The material of the first anti-attrition column and the second anti-attrition column is brass.
8. thrust friction according to claim 1 is secondary, it is characterised in that:
The material of the resistance to grinding column is hard alloy.
9. thrust friction according to claim 1 is secondary, it is characterised in that:
The material of the resistance to grinding column is air hardening steel.
10. a kind of drill bit, which is characterized in that the drill bit includes that the friction of thrust described in any one of claim 1-9 is secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563619.7U CN208347699U (en) | 2018-04-19 | 2018-04-19 | A kind of thrust friction is secondary and drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563619.7U CN208347699U (en) | 2018-04-19 | 2018-04-19 | A kind of thrust friction is secondary and drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208347699U true CN208347699U (en) | 2019-01-08 |
Family
ID=64886681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820563619.7U Active CN208347699U (en) | 2018-04-19 | 2018-04-19 | A kind of thrust friction is secondary and drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208347699U (en) |
-
2018
- 2018-04-19 CN CN201820563619.7U patent/CN208347699U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4738322A (en) | Polycrystalline diamond bearing system for a roller cone rock bit | |
| US4802539A (en) | Polycrystalline diamond bearing system for a roller cone rock bit | |
| CN108625789B (en) | Composite drill bit of split roller cone and PDC | |
| CN101967956B (en) | Tricone bit used for high-rotation speed drilling | |
| CN101614108A (en) | Roller cone drill bits with bearing arrangement of optimization | |
| CN108360979B (en) | Split single-cone bit | |
| CN105156035B (en) | A kind of oscillating tooth PDC drill bit | |
| CN201802311U (en) | Tricone bit for drilling well at high rotating speed | |
| CN102182751A (en) | Radial sliding bearing for turbine drill | |
| CN208347699U (en) | A kind of thrust friction is secondary and drill bit | |
| CN108442886B (en) | Split tricone bit | |
| CN203867471U (en) | Gauge protection down-the-hole drill bit | |
| CN213144421U (en) | Large-diameter horizontal hole core drill | |
| CN103758463A (en) | Diamond-impregnated bit of arc tooth | |
| CN202148870U (en) | Three-ring hob device of raise boring machine | |
| CN107620571B (en) | A kind of casing failure well reparation long-life composite drill bit | |
| CN106545567A (en) | A kind of PDC thrust rings of slide thrust bearing | |
| CN207553975U (en) | A kind of axial thrust roller type righting drill bit | |
| CN203729884U (en) | Diamond-impregnated drill bit with arc teeth | |
| CN2276985Y (en) | Pressure balance sealed bearing tri-cone rotary drill bit | |
| CN108571290B (en) | Split drill bit with torsion impact function | |
| CN201152146Y (en) | Floating shaft bushing type roller bit | |
| CN204703768U (en) | Thrust block lubricates compensation mining cone bit | |
| CN202131981U (en) | Axially-sealed roller bit | |
| CN206647050U (en) | A kind of geothermal exploration drilling well high speed tricone bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190712 Address after: 430080 No. 6, No. 2 Middle Road, Mechanic Repair Workshop, Qingshan District, Wuhan City, Hubei Province Patentee after: WISCO Zhongye Industrial Technology Service Co., Ltd. Address before: 430080 Qingshan District, Hubei, Wuhan Patentee before: Wuhan Iron & Steel Heavy Industry Group Co., Ltd. |