CN1089845C - Roll-slide combined bearing - Google Patents
Roll-slide combined bearing Download PDFInfo
- Publication number
- CN1089845C CN1089845C CN99116490A CN99116490A CN1089845C CN 1089845 C CN1089845 C CN 1089845C CN 99116490 A CN99116490 A CN 99116490A CN 99116490 A CN99116490 A CN 99116490A CN 1089845 C CN1089845 C CN 1089845C
- Authority
- CN
- China
- Prior art keywords
- bearing
- slide block
- rolling
- roll
- revolving body
- 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.)
- Expired - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 5
- 239000011435 rock Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a rolling composite bearing which can be particularly used as bearings of roller bits of the well drilling of oilfield, natural gas and mine. The rolling composite bearing comprises an inner revolving body and an outer revolving body. A supporting slide block and a rolling body are arranged in a circle rolling path between the inner revolving body and the outer revolving body, so the rolling composite bearing is formed. The composite structure of a rolling friction pair and a sliding friction pair is adopted by the utility model; thus, the present invention has the characteristics that high rotary speed of an original rolling bearing can be preserved, the load-bearing capability and the impact-resisting capability of the bearing can be improved, and the present invention has good characteristic of high-speed heavy load. The bearing capacity of the present invention can be improved further if the rolling composite bearing of the present invention is arranged in the roller bit.
Description
The present invention relates to a kind of be suitable in, the roll-slide combined bearing that uses in the heavy load, this bearing is particularly suited for as oil, natural gas, the mine drilling well bearing with rock bit.
Bearing of the prior art roughly is divided into two classes, sliding bearing and rolling bearing.Conventional sliding bearing loaded area is big, can bear heavy duty, but the secondary friction factor of bearing friction is big, and frictional heat rate height under lubricated and situation that cooling condition is relatively poor, is unwell to the operation of higher rotation speed.Contact between the rolling bearing friction pair is made rolling-operation, so friction factor is little in the running for the contact of higher pair dotted line between parts of bearings, the frictional heat rate is low, can bear high rotating speed, but is the dotted line contact because of it, the hertz stress height is unsuitable for using under the situation of heavy duty or impact.
Concerning some equipment and component, the rock bit used of formation rock drilling well for example, its gear wheel is joining by the cantilevered axle and the bit body of bearing and bit leg bottom, because rock bit is to move under the condition of top load, thump and higher rotation speed, and cooling and poor lubrication, thereby it is fragile to adopt above-mentioned two kinds of bearings all to exist in the gear wheel, and application life is short, the restricted problem of rotating speed or load.
The objective of the invention is to draw at the deficiency of above-mentioned existence roll, plain besring advantage separately provides a kind of roll-slide combined bearing, this bearing can bear higher load and rotating speed simultaneously, is fit to the demand of rock bit high-speed overload.
Purpose of the present invention realizes by following technical scheme: revolving body 2 and external gyrorotor 3 in including, its difference are to be installed on supporting slide block 6 and rolling element 5 in the belt raceway groove between inside and outside revolving body, constitute roll-slide combined bearing.
Press such scheme, described interior revolving body 2 can be inner ring or axle or other supporting member; External gyrorotor 3 can be outer ring or plate wheel or other supporting member; Rolling element 5 is roller or ball; Supporting slide block 6 is the circular arc piece, can be parallel block structure or secter pat structure; Install rolling element and supporting slide block space (interlocking) in belt raceway groove, and the quantitative proportion of a slide block and rolling element can be according to the load character adjustment.
The present invention adopts two kinds of friction pair structure combining of skid, make bearing when doing the rolling running, share a part of load by supporting slide block, reduce the hertz stress of rolling element, can make the present invention keep the characteristic of original rolling bearing higher rotation speed, can improve the carrying and the shock-resistant ability of bearing again, possess the characteristic of high-speed overload preferably.Can satisfy similar rock bit and bear the requirement of turning round with higher rotation speed under the situation of heavier load.By by 81/2 " bearing size of tricone bit shows the simulated test that the present invention did: bearing is under 326 rev/mins rotating speed; per hour load 5KN load; when reaching 98KN; bearing temperature of the present invention is about 100 ℃; friction pair aclusion, roller have only very slight edge point corrosion; And unidimensional sliding axle is made same simulated test, and load is added to about 50KN, and interlock just takes place, and the temperature before the interlock just reaches more than 190 ℃; The unidimensional axis of rolling is made same simulated test, and load is added to 98KN, though bearing temperature is lower, roller all spot corrosion very seriously peels off breakage.Test shows that the present invention can effectively improve the rotating speed of bearing under bearing than the situation of top load, so the present invention is particularly suitable for as the bearing of drilling well with rock bit the bearing load carrying capacity of rock bit being improved further.
Fig. 1 also is the A-A sectional drawing among Fig. 2 for the sectional drawing of basic structure of the present invention.
Fig. 2 is the structure chart of one embodiment of the invention.
Fig. 3, Fig. 4 are the structure chart of supporting slide block of the present invention.
Describe embodiments of the invention in detail below in conjunction with accompanying drawing, in having, external gyrorotor 2,3, interior, be installed on 6 rolling elements 5 and 6 supporting slide blocks 6 between the external gyrorotor in the formed annular raceway groove at interval, rolling member is a roller, supporting slide block is the block hexahedron of circular arc, have extrados 13 and intrados 14, the slide block side 11 of the left and right sides, 12 contact with roller, a left side, right slide block side is parallel to each other and is parallel with the symmetrical arc radius of supporting slide block, is the parallel block structure, as shown in Figure 3, perhaps supporting slide block is the secter pat structure, inwardly shrink along arc radius slide block side, the left and right sides, as shown in Figure 4, lubricated for improving, can offer oil film wedge plane 17 at the two ends of intrados 14, the symmetrical arc radius of oil film wedge plane and supporting slide block is perpendicular, in supporting slide block, offers alloy groove 15 on the extrados, inlay alloy 16 in the alloy groove, to strengthen the abrasion resistance of supporting slide block.
Fig. 2 is arranged at structural diagrams in the rock bit for the present invention, rock bit can be made up of a slice or three bit legs 1, rotating gear wheel 3 is installed on the cantilevered axle 2 of every bit leg bottom, cutting teeth 4 is arranged on the gear wheel, cantilevered axle 2 is interior revolving body in the present embodiment, gear wheel 3 is an external gyrorotor, on the fitting face between cantilevered axle and the gear wheel, offer the ring raceway groove, roller 5 and parallel block structured supporting slide block 6 are installed in the raceway groove at interval, constitute the rock bit roll-slide combined bearing, bearing is by 7 lockings of locking steel ball, and steel ball is by plug pin 10 location, and the plug pin hole is communicated with oilhole 9, and bearing bore seals with sealed picture 8.
Claims (8)
1, a kind of roll-slide combined bearing includes interior revolving body (2) and external gyrorotor (3), it is characterized in that being being installed on supporting slide block (6) and rolling element (5) in the belt raceway groove between inside and outside revolving body, constitutes roll-slide combined bearing.
2, by the described roll-slide combined bearing of claim 1, it is characterized in that described rolling element (5) is roller or ball.
3, by claim 1 or 2 described roll-slide combined bearings, it is characterized in that rolling element (5) and the installation of supporting slide block (6) space in belt raceway groove, rolling element contacts with the left and right side of supporting slide block.
4, by claim 1 or 2 described roll-slide combined bearings, it is characterized in that supporting slide block (6) is the circular arc piece, is parallel block structure or secter pat structure.
5, by the described roll-slide combined bearing of claim 4, it is characterized in that on the inside and outside cambered surface of supporting slide block (6), offering alloy groove (15), inlay alloy (16) in the alloy groove.
6, by the described roll-slide combined bearing of claim 4, it is characterized in that offering oil film wedge plane (17) at the two ends of supporting slide block intrados (14).
7, by claim 1 or 2 described roll-slide combined bearings, it is characterized in that described interior revolving body is the cantilevered axle (2) of cone bit palm bottom, described external gyrorotor is gear wheel (3).
8, by the described roll-slide combined bearing of claim 7, it is characterized in that on the fitting face between cantilevered axle and the gear wheel, offering the raceway groove that goes in ring, rolling element (5) and supporting slide block (6) are installed in the raceway groove at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116490A CN1089845C (en) | 1999-05-25 | 1999-05-25 | Roll-slide combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116490A CN1089845C (en) | 1999-05-25 | 1999-05-25 | Roll-slide combined bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1240870A CN1240870A (en) | 2000-01-12 |
| CN1089845C true CN1089845C (en) | 2002-08-28 |
Family
ID=5279297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116490A Expired - Fee Related CN1089845C (en) | 1999-05-25 | 1999-05-25 | Roll-slide combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089845C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806195A (en) * | 2010-03-09 | 2010-08-18 | 江汉石油钻头股份有限公司 | Tricone bit used for high-rotating speed well drilling |
| CN101956527B (en) * | 2010-10-14 | 2015-01-21 | 天津立林钻头有限公司 | High-pressure and impact resistant bearing roller bit with elastic sliders |
| CN102434577B (en) * | 2011-12-14 | 2013-04-17 | 华东交通大学 | A rolling bearing with outer ring as a set |
| CN102494017B (en) * | 2011-12-14 | 2013-10-16 | 华东交通大学 | Bearing with inner ring serving as sleeve piece |
| CN102494021B (en) * | 2011-12-19 | 2013-10-16 | 华东交通大学 | Oil lubricating roll-slide bearing with elastic roller |
| CN104089097A (en) * | 2014-06-30 | 2014-10-08 | 江苏大力城电气有限公司 | Enhanced constant-force spring supporting suspension bracket |
| CN104533294B (en) * | 2014-12-30 | 2016-08-24 | 扬州捷迈锻压机械有限公司 | A kind of impact resistance high-mechanic roll-slide combined bearing |
| CN112555275B (en) * | 2019-09-26 | 2023-06-02 | 北京金风科创风电设备有限公司 | Bearings and wind turbines |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88201554U (en) * | 1988-03-13 | 1988-11-23 | 郭德明 | Radial-thrust double layer composite rolling needle bearing |
| CN2084125U (en) * | 1990-01-12 | 1991-09-04 | 杨军 | Double layer composite high speed rolling bearing |
| CN1069548A (en) * | 1991-08-15 | 1993-03-03 | 石油大学(北京) | Roller bit |
-
1999
- 1999-05-25 CN CN99116490A patent/CN1089845C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88201554U (en) * | 1988-03-13 | 1988-11-23 | 郭德明 | Radial-thrust double layer composite rolling needle bearing |
| CN2084125U (en) * | 1990-01-12 | 1991-09-04 | 杨军 | Double layer composite high speed rolling bearing |
| CN1069548A (en) * | 1991-08-15 | 1993-03-03 | 石油大学(北京) | Roller bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1240870A (en) | 2000-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tian Hongping Inventor after: Chen Zhihua Inventor before: Tian Hongping |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: TIAN HONGPING TO: TIAN HONGPING; CHEN ZHIHUA |
|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 99116490.3 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 99237954.7 utility model patent to be given up, and in the 18 volume of the 35 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 433124 Hubei Province, Qianjiang City Guanghua Qianjin Road Kingdream company research department Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020828 Termination date: 20180525 |