CN200982159Y - Roller bit single-metal floating seal assembly - Google Patents
Roller bit single-metal floating seal assembly Download PDFInfo
- Publication number
- CN200982159Y CN200982159Y CN 200620027466 CN200620027466U CN200982159Y CN 200982159 Y CN200982159 Y CN 200982159Y CN 200620027466 CN200620027466 CN 200620027466 CN 200620027466 U CN200620027466 U CN 200620027466U CN 200982159 Y CN200982159 Y CN 200982159Y
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- ring
- pressed
- metallic packing
- packing ring
- monometallic
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Abstract
The utility model relates to an indented chisel monometallic float sealed assembly for the oil drilling and mining, comprising a metal seal ring, an O type energy supply sealing ring, an assistant sealing gasket and a pressed ring which is pressed in the roller bearing as one part of the bearing, wherein one end face of the metal ring is engageable with one end face of the pressed ring, which forms the sealing surface. The utility model is characterized in that, firstly, the sealing surface with the small the frictional factor is made of the metal surface, and is suitable for the high temperature and the high rotary speed. Secondly, the utility model has the smaller sealed axial space than the general duplex metal float seal, and increases the length of the axletree, thereby adapting to the higher drilling pressure. Thirdly, the manufacturing process is simplified.
Description
Technical field
The utility model belongs to a kind of and is used for oil drilling, digs up mine with the seal assembly at cone bit bearing position, particularly a kind of rock bit monometallic floating seal assembly.
Background technology
Along with being extensive use of of downhole motor drilling and combined drilling technology, requirement to the rock bit rotating speed is more and more higher, except performance raising and bearing arrangement to bearing material are further optimized, outside the further raising of the performance of bearing lubricant, it is crucial that bearing seal can adapt to high rotating speed.Tradition rubber seal commonly used at present is difficult to adapt to high-revolving requirement, and bimetallic (spring cone) seal can be satisfied the requirement of high rotating speed cone bit bearing sealing, but because its axial space is bigger, has occupied a part of bearing space, has reduced the supporting capacity of bearing.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned conventional rubber seal drill bit and bimetallic (spring cone) seal drill bit, a kind of high rotating speed and little rock bit monometallic floating seal assembly of sealing axial space of adapting to is provided, it is little that it has absorbed bimetallic (spring cone) seal seal face friction factor, the little advantage of frictional heat that produces during high rotating speed, adopted a rubber energy supply sealing ring and a metallic packing ring as the floating seal element, reduced the axial dimension of seal assembly, increase the axial length of bearing accordingly, improved the supporting capacity of bearing; Auxiliary seal ring further makes mud and landwaste can not enter into sealing area, and stores certain grease lubrication sealing surface.
The technical solution of the utility model is: a kind of rock bit monometallic floating seal assembly, be pressed into gear wheel endoporus being pressed into ring and constituting annular seal space as a gear wheel bearing part by gear wheel endoporus outer end with by the teeth palm bearing root, monometallic floating seal assembly is installed in the annular seal space, comprise the ring that is pressed into that is pressed into the gear wheel endoporus, metallic packing ring, O type energy supply sealing ring, the auxiliary seal pad, O type energy supply sealing ring is compressed on the diameter of axle of bit leg by metallic packing ring, the auxiliary seal pad is compressed in the bearing root of bit leg by the small end of metallic packing ring, by O type energy supply sealing ring, the elastic force that compressive strain produced of auxiliary seal pad fits together the right side of metallic packing ring closely with the left side that is pressed into ring, an end face by metallic packing ring constitutes sealing surface with an end face pairing that is pressed into ring, and the sealing load of seal face is provided.
The seal face of described metallic packing ring has an inclined plane, and the angle of its inclination is the 2-5 degree.
The opening direction on the inclined plane of described metallic packing ring is towards the teeth palm bearing axis.
Described metallic packing ring, its inner surface can be made up of an orthodrome or one section inclined-plane and two sections circular arcs.
Described metallic packing ring, the oblique angle on the inclined-plane of its inner surface are the 10-30 degree.
Described O type energy supply sealing ring, auxiliary seal pad are to be made by the rubber elastomeric material.
Described metallic packing ring is to be made by materials such as stainless steel, carbide alloy, steel bonded carbide, high-speed steel with being pressed into ring.
The beneficial effects of the utility model are: 1, and sealing surface is made up of metal covering, and friction factor is little, is applicable to high temperature and high rotating speed.2。Have the sealing axial space littler, increased the length of bearing, thereby can adapt to bigger the pressure of the drill than conventional bimetallic floating seal.3, simplified machining process.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the further enlarged drawing of Fig. 2;
Fig. 4 is a kind of embodiment structural representation of the sealing surface curve of metallic packing ring;
Fig. 5 is the another embodiment structural representation of the sealing surface curve of metallic packing ring.
The specific embodiment
Further specify structure of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 and 2, a kind of rock bit monometallic floating seal assembly, be pressed into gear wheel endoporus being pressed into ring 2 and constituting annular seal space as a gear wheel bearing part by gear wheel 1 endoporus outer end with by bit leg 6 bearing roots, monometallic floating seal assembly is installed in the annular seal space, comprise that being pressed into being pressed into of gear wheel 1 endoporus encircles 2, metallic packing ring 3, O type energy supply sealing ring 4, auxiliary seal pad 5, O type energy supply sealing ring 4 is compressed in by metallic packing ring 3 on the diameter of axle of bit leg 6 and constitutes static seal, auxiliary seal pad 5 is formed another static seal by the bearing root that the small end of metallic packing ring 3 is compressed in bit leg 6, by O type energy supply sealing ring 4, the elastic force that compressive strain produced of auxiliary seal pad 5 fits together the right side of metallic packing ring 3 closely with the left side that is pressed into ring 2, an end face by metallic packing ring 3 constitutes sealing surface with an end face pairing that is pressed into ring 2, and the sealing load of seal face is provided.
Referring to Fig. 3, in order to reduce the contact area of seal face, on the seal face of metallic packing ring, process an inclined-plane 7, the opening direction on this inclined-plane is the bearing diameter of axle direction towards bit leg 6, its angle A is the 2-5 degree.
Referring to Fig. 4, the inner sealing surface curve of metallic packing ring 3 is one section circular arc.
Referring to Fig. 5, the inner sealing surface curve of metallic packing ring 3 is that one section inclined-plane 9 and two sections circular arcs 8,10 are formed, and the angle of slope B on inclined-plane 9 is the 10-30 degree.
Claims (7)
1, a kind of rock bit monometallic floating seal assembly, it is characterized in that: be pressed into gear wheel endoporus being pressed into ring and constituting annular seal space as a gear wheel bearing part by gear wheel endoporus outer end with by the teeth palm bearing root, monometallic floating seal assembly is installed in the annular seal space, comprise the ring that is pressed into that is pressed into the gear wheel endoporus, metallic packing ring, O type energy supply sealing ring, the auxiliary seal pad, O type energy supply sealing ring is compressed on the diameter of axle of bit leg by metallic packing ring, the auxiliary seal pad is compressed in the bearing root of bit leg by the small end of metallic packing ring, by O type energy supply sealing ring, the elastic force that compressive strain produced of auxiliary seal pad fits together the right side of metallic packing ring closely with the left side that is pressed into ring, an end face by metallic packing ring constitutes sealing surface with an end face pairing that is pressed into ring, and the sealing load of seal face is provided.
2, a kind of rock bit monometallic floating seal assembly according to claim 1, it is characterized in that: described O type energy supply sealing ring, auxiliary seal pad are to be made by the rubber elastomeric material.
3, a kind of rock bit monometallic floating seal assembly according to claim 1 is characterized in that: described metallic packing ring is to be made by materials such as stainless steel, carbide alloy, steel bonded carbide, high-speed steel with being pressed into ring.
4, a kind of rock bit monometallic floating seal assembly according to claim 1, it is characterized in that: the seal face of described metallic packing ring has an inclined plane, and the angle of its inclination is the 2-5 degree.
5, a kind of rock bit monometallic floating seal assembly according to claim 4 is characterized in that: the opening direction on the inclined plane of described metallic packing ring is towards the teeth palm bearing axis.
6, a kind of rock bit monometallic floating seal assembly according to claim 1 is characterized in that: described metallic packing ring, its inner surface is made up of an orthodrome or one section inclined-plane and two sections circular arcs.
7, a kind of rock bit monometallic floating seal assembly according to claim 6, it is characterized in that: described metallic packing ring, the oblique angle on the inclined-plane of its inner surface are the 10-30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027466 CN200982159Y (en) | 2006-09-29 | 2006-09-29 | Roller bit single-metal floating seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027466 CN200982159Y (en) | 2006-09-29 | 2006-09-29 | Roller bit single-metal floating seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982159Y true CN200982159Y (en) | 2007-11-28 |
Family
ID=38909319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620027466 Expired - Fee Related CN200982159Y (en) | 2006-09-29 | 2006-09-29 | Roller bit single-metal floating seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982159Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881136A (en) * | 2010-07-09 | 2010-11-10 | 天津立林钻头有限公司 | Compound seal roller bit |
| CN101182756B (en) * | 2007-12-17 | 2011-05-11 | 江汉石油钻头股份有限公司 | Bearing sealing structure for rotary drill bit |
| CN103410448A (en) * | 2013-08-23 | 2013-11-27 | 陕西金刚石油机械有限公司 | O-shaped loop and metal ring two-way combined sealed oil storage single-cone bit |
| CN103556949A (en) * | 2013-10-31 | 2014-02-05 | 李生 | Cone bearing sealing structure |
| CN105121773A (en) * | 2013-03-20 | 2015-12-02 | 山特维克知识产权股份有限公司 | Roller cutter with improved sealing |
| CN105350915A (en) * | 2015-11-26 | 2016-02-24 | 江西飞龙钻头制造有限公司 | Sealing device for roller cone bit |
| CN108019152A (en) * | 2017-12-28 | 2018-05-11 | 苏州新锐合金工具股份有限公司 | A kind of monometallic seals bearing tricone bit |
| CN108442885A (en) * | 2018-04-03 | 2018-08-24 | 西南石油大学 | Rock bit monometallic compound sealing structure |
| CN108533178A (en) * | 2018-04-03 | 2018-09-14 | 西南石油大学 | Rock bit tooth form sealing structure |
-
2006
- 2006-09-29 CN CN 200620027466 patent/CN200982159Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182756B (en) * | 2007-12-17 | 2011-05-11 | 江汉石油钻头股份有限公司 | Bearing sealing structure for rotary drill bit |
| CN101881136A (en) * | 2010-07-09 | 2010-11-10 | 天津立林钻头有限公司 | Compound seal roller bit |
| CN105121773A (en) * | 2013-03-20 | 2015-12-02 | 山特维克知识产权股份有限公司 | Roller cutter with improved sealing |
| CN103410448A (en) * | 2013-08-23 | 2013-11-27 | 陕西金刚石油机械有限公司 | O-shaped loop and metal ring two-way combined sealed oil storage single-cone bit |
| CN103410448B (en) * | 2013-08-23 | 2016-03-09 | 陕西金刚石油机械有限公司 | The oil storage single-cone rotary drill bit of a kind of O shape circle metal ring bi-directional combination sealing |
| CN103556949A (en) * | 2013-10-31 | 2014-02-05 | 李生 | Cone bearing sealing structure |
| CN103556949B (en) * | 2013-10-31 | 2015-11-11 | 李生 | A kind of gear wheel bearing seal structure |
| CN105350915A (en) * | 2015-11-26 | 2016-02-24 | 江西飞龙钻头制造有限公司 | Sealing device for roller cone bit |
| CN105350915B (en) * | 2015-11-26 | 2017-11-21 | 江西飞龙钻头制造有限公司 | A kind of sealing device of rock bit |
| CN108019152A (en) * | 2017-12-28 | 2018-05-11 | 苏州新锐合金工具股份有限公司 | A kind of monometallic seals bearing tricone bit |
| CN108442885A (en) * | 2018-04-03 | 2018-08-24 | 西南石油大学 | Rock bit monometallic compound sealing structure |
| CN108533178A (en) * | 2018-04-03 | 2018-09-14 | 西南石油大学 | Rock bit tooth form sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |