CN105672888A - Roller bit two-way gear sealing structure - Google Patents
Roller bit two-way gear sealing structure Download PDFInfo
- Publication number
- CN105672888A CN105672888A CN201610008676.4A CN201610008676A CN105672888A CN 105672888 A CN105672888 A CN 105672888A CN 201610008676 A CN201610008676 A CN 201610008676A CN 105672888 A CN105672888 A CN 105672888A
- Authority
- CN
- China
- Prior art keywords
- teeth
- tooth
- sealing
- way gear
- sealing ring
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 239000004519 grease Substances 0.000 claims abstract description 7
- 230000001050 lubricating effect Effects 0.000 claims abstract description 7
- 208000008312 Tooth Loss Diseases 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a roller bit two-way gear sealing structure which comprises a cone, a bearing and a two-way gear sealing ring. A body of the two-way gear sealing ring is an annular sealing ring. A plurality of teeth identical in size are evenly distributed on the inner side and the outer side of the body. The two side faces of the teeth are both in an involute tooth shape, the top faces of the teeth are in an arc shape, and the teeth on the inner side and the teeth on the outer side are distributed in a staggered mode. Multi-stage sealing is achieved through the teeth, and when a certain tooth loses efficacy, other teeth can still achieve effective sealing. The two-way gear sealing ring rotates to drive lubricating grease to circulate, all the teeth can be well lubricated, and hydrodynamic sealing can be achieved easily. Meanwhile, the lubricating grease can be stored in multiple tooth grooves, and sealing lubricating performance is improved. The teeth on the inner side and the teeth on the outer side are distributed in the staggered mode, so that the situation that after the teeth on one side are damaged, the teeth on the other side are affected is prevented. The annular sealing ring of the body has certain thickness and certain height, effective strength and sealing performance are guaranteed, and the situation that work of the whole sealing ring is affected because the certain tooth is damaged is effectively prevented.
Description
Technical field
The present invention relates to the two-way gear of a kind of rifler suitable in oil drilling, geological prospecting and seal structure, belong to cone bit bearing field of sealing technology.
Background technology
Rifler is most widely used a kind of drilling tool in oil drilling and geological drilling. Rifler has impact when rotated, crushes and the effect of shearing-crushing formation rock, so, rifler can adapt to soft, in, hard various stratum. Sealing is the most critical factor determining the rifler life-span, is also the parts being easiest to lose efficacy. Occurred in that metal floating seal in recent years, although the resistance to elevated temperatures of becket is better, but the deformation after becket abrasion cannot compensate automatically can not play effective sealing function, and metal floating seal also uses O-shaped rubber ring, but contact area is bigger, frictional heat is still very big, high temperature is the factor that elastomeric material is the most fatal, therefore, when ensureing to reliably seal, it is necessary to reduce the contact area of rubber ring, reduce the compression of rubber ring, and then the operating temperature of reduction rubber ring, its service life could be improved. Owing to annular seal space is less, being difficulty with multi-stage sealed, single-stage sealing property is poor. Therefore, invent a kind of sealing structure with the multi-stage sealed form compared with small area of contact to be just particularly important.
Summary of the invention
The invention aims to solve that existing roller bit sealing structure contact area is big, frictional force and frictional heat is big, the problem of single-stage poor sealing performance, special provide a kind of two-way gear of rifler to seal structure.
The technical solution adopted for the present invention to solve the technical problems is: the two-way gear of one rifler of the present invention seals structure, is made up of gear wheel, bearing, two-way gear sealing ring; The body of described two-way gear sealing ring is O-ring seal, the tooth that uniform multiple sizes are identical in the inner side and outer side of body, and two sides of tooth are involute profile, and the end face of tooth is circular arc. The tooth interlaced arrangement of inner and outer, inner tines and bearing seal, outside tooth seals with gear wheel, realizing multi-stage sealed by multiple teeth, after wherein certain tooth lost efficacy, the tooth also by other realizes effectively sealing, teeth groove can storing lubricating grease, be effectively increased the greasy property of sealing.
The invention have the advantage that 1, the two-way gear of rifler seals structure and realizes multi-stage sealed by multiple teeth, improves the reliability of sealing; 2, the rotation of the two-way gear sealing ring of rifler can drive the circulation of grease, and each tooth can be played good lubrication, meanwhile, multiple teeth groove can storing lubricating grease, improve the greasy property of sealing; 3, the tooth interlaced arrangement of the inner side and outer side of the two-way gear sealing ring of rifler, it is prevented that the tooth of side affects the tooth of opposite side after damaging; 4, the two-way gear of rifler seals structure and facilitates implementation hydrodynamic seal, is beneficial to the formation of lubricating oil film, reduces abrasion, ageing failure; 5, rifler two-way gear sealing structure has the body construction of certain thickness, certain altitude, it is ensured that effective intensity and sealing property, effectively prevent the work affecting whole sealing ring because certain tooth damages.
Accompanying drawing explanation
Fig. 1 is that the two-way gear of one rifler of the present invention seals structure.
Fig. 2 is the enlarged drawing of Figure 1A place structure.
In figure: 1. tooth pawl, 2. gear wheel, 3. steel ball, 4. plug pin, 5. bearing, 6. two-way gear sealing ring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1: tooth pawl 1 and gear wheel 2 are connected on bearing 5 respectively through gear wheel inner hole sleeve, and plug pin 4 is welded and fixed after putting into bearing from plug pin hole by steel ball 3, is maintained on bearing 5 by gear wheel 2 by steel ball 3. Equipped with two-way gear sealing ring 6 between gear wheel 2 endoporus and bearing 5.
As in figure 2 it is shown, the two-way gear of one rifler of the present invention seals structure, it is made up of gear wheel 2, bearing 5, two-way gear sealing ring 6; The body of described two-way gear sealing ring 6 is O-ring seal, the tooth that uniform multiple sizes are identical in the inner side and outer side of body, two sides of tooth are involute profile, and the end face of tooth is circular arc, the tooth interlaced arrangement of inner and outer, inner tines and bearing seal, outside tooth seals with gear wheel, realizes multi-stage sealed by multiple teeth, after wherein certain tooth lost efficacy, tooth also by other realizes effectively sealing, teeth groove can storing lubricating grease, be effectively increased the greasy property of sealing.
Claims (2)
1. the two-way gear of rifler seals a structure, is made up of gear wheel (2), bearing (5), two-way gear sealing ring (6), is positioned at the annular seal space that gear wheel (2) forms with bearing (5).
2. a kind of two-way gear of rifler seals structure as claimed in claim 1, it is characterized in that: the body of two-way gear sealing ring (6) is O-ring seal, the tooth that uniform multiple sizes are identical in the inner side and outer side of body, two sides of tooth are involute profile, and the end face of tooth is circular arc. The tooth interlaced arrangement of two-way gear sealing ring (6) inner and outer, inner tines and bearing seal, outside tooth seals with gear wheel, realize multi-stage sealed by multiple teeth, after wherein certain tooth lost efficacy, tooth also by other realizes effectively sealing, teeth groove can storing lubricating grease, be effectively increased the greasy property of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008676.4A CN105672888A (en) | 2016-01-08 | 2016-01-08 | Roller bit two-way gear sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008676.4A CN105672888A (en) | 2016-01-08 | 2016-01-08 | Roller bit two-way gear sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105672888A true CN105672888A (en) | 2016-06-15 |
Family
ID=56299214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008676.4A Pending CN105672888A (en) | 2016-01-08 | 2016-01-08 | Roller bit two-way gear sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105672888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093319A (en) * | 2017-12-20 | 2018-05-29 | 深圳市奋达科技股份有限公司 | A kind of proof mechanism of water of rotatable parts |
| CN110984864A (en) * | 2019-12-25 | 2020-04-10 | 西南石油大学 | Roller bit seal structure |
| CN118128551A (en) * | 2024-05-08 | 2024-06-04 | 河南重工集团起重机科技有限公司 | Drilling obstacle-removing device for mine rescue |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833129A (en) * | 2003-08-06 | 2006-09-13 | 维克托里克公司 | Valve seal with pressure relief channels and expansion voids |
| CN101182756A (en) * | 2007-12-17 | 2008-05-21 | 江汉石油钻头股份有限公司 | Bearing sealing structure for rotary drill bit |
| CN101657661A (en) * | 2007-04-09 | 2010-02-24 | Nok株式会社 | Seal arrangement |
| CN101725702A (en) * | 2008-10-24 | 2010-06-09 | 株式会社牧田 | Sealing device for gear chamber |
| US20100147595A1 (en) * | 2008-12-12 | 2010-06-17 | Baker Hughes Incorporated | Bearing seal with improved contact width |
| CN202152852U (en) * | 2011-06-28 | 2012-02-29 | 青岛开世密封工业有限公司 | Dustproof sealing ring |
-
2016
- 2016-01-08 CN CN201610008676.4A patent/CN105672888A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833129A (en) * | 2003-08-06 | 2006-09-13 | 维克托里克公司 | Valve seal with pressure relief channels and expansion voids |
| CN101657661A (en) * | 2007-04-09 | 2010-02-24 | Nok株式会社 | Seal arrangement |
| CN101182756A (en) * | 2007-12-17 | 2008-05-21 | 江汉石油钻头股份有限公司 | Bearing sealing structure for rotary drill bit |
| CN101725702A (en) * | 2008-10-24 | 2010-06-09 | 株式会社牧田 | Sealing device for gear chamber |
| US20100147595A1 (en) * | 2008-12-12 | 2010-06-17 | Baker Hughes Incorporated | Bearing seal with improved contact width |
| CN202152852U (en) * | 2011-06-28 | 2012-02-29 | 青岛开世密封工业有限公司 | Dustproof sealing ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093319A (en) * | 2017-12-20 | 2018-05-29 | 深圳市奋达科技股份有限公司 | A kind of proof mechanism of water of rotatable parts |
| CN110984864A (en) * | 2019-12-25 | 2020-04-10 | 西南石油大学 | Roller bit seal structure |
| CN110984864B (en) * | 2019-12-25 | 2022-03-15 | 西南石油大学 | Roller bit seal structure |
| CN118128551A (en) * | 2024-05-08 | 2024-06-04 | 河南重工集团起重机科技有限公司 | Drilling obstacle-removing device for mine rescue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
|
| RJ01 | Rejection of invention patent application after publication |