CN203098566U - Thrust bearing - Google Patents
Thrust bearing Download PDFInfo
- Publication number
- CN203098566U CN203098566U CN 201220708704 CN201220708704U CN203098566U CN 203098566 U CN203098566 U CN 203098566U CN 201220708704 CN201220708704 CN 201220708704 CN 201220708704 U CN201220708704 U CN 201220708704U CN 203098566 U CN203098566 U CN 203098566U
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- Prior art keywords
- bearing
- thrust
- thrust bearing
- conicle
- conical sleeve
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- Withdrawn - After Issue
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Abstract
The utility model discloses a thrust bearing. The thrust bearing comprises a bearing left end ring (1), a large thrust bearing (2), a large conical sleeve (3), a small conical sleeve (4), a small thrust bearing (5) and a bearing right end ring (6), wherein the bearing left end ring (1) and the bearing right end ring (6) are respectively arranged at two ends of the thrust bearing, the large conical sleeve (3) and the small conical sleeve (4) are arranged in a matching way, the large thrust bearing (2) is sheathed at one end of the small conical sleeve (4), and the small thrust bearing (5) is sheathed in one end of the large conical sleeve (3). By installing the large thrust bearing and the large conical sleeve as well as the small conical sleeve and the small thrust bearing which are in parallel connection in the thrust bearing, the thrust bearing is compact in structure, the uniform distribution of a load is realized by the parallel connection mode, the load of each bearing part is reduced, the bearing capacity is improved, the service life is prolonged, and the space is saved.
Description
Technical field
The utility model relates to field of bearings, particularly a kind of thrust-bearing.
Background technique
In field of oil drilling, well dynamic instrument and drill bit, drill collar etc. are formed bottom hole assemblies, are positioned at the bottom of whole drill string, directly provide brokenly rock power for drill bit, can effectively improve mechanical rate of penetration, realize the directional inclination function.Thrust-bearing is one of critical component of mud motor, impulsive load when carrying drill string load, hydraulic load and broken rock, and the working life of thrust-bearing and bearing capacity influence the performance of whole well dynamic instrument.The well dynamic instrument in order to improve well passing capacity, directional inclination rate, often has the restriction of strictness to the length of instrument when drillng operation.At present, common 4 angular contact ball bearings of well dynamic instrument use adopt ball bearing to arrange the type of series connection more more.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art: the existing ball bearing that adopts is arranged common 4 angular contact ball bearings of series connection more, not only each row's bearing capacity is inhomogeneous, and the physical dimension of bearing is bigger, so the working life of thrust-bearing and applicability all are affected.
The model utility content
In order to solve prior art problems, the utility model embodiment provides a kind of thrust-bearing, is a kind of parallel connection type thrust-bearing of compact structure, satisfies the usage requirement of well dynamic instrument.Described technological scheme is as follows:
A kind of thrust-bearing, described thrust-bearing comprises: bearing left end circle, high thrust bearing, big conical sleeve tube, conicle sleeve, low thrust bearing and bearing right-hand member circle, described big conical sleeve tube has inner conical surface and big circular cone exntension tubs, and described conicle sleeve has male cone (strobilus masculinus) and conicle exntension tubs; Described bearing left end circle and described bearing right-hand member circle are separately positioned on the two ends of described thrust-bearing, the setting that matches with the described male cone (strobilus masculinus) of described conicle sleeve at described inner conical surface place of described big conical sleeve tube; Described high thrust bearing housing is located at outside the described conicle exntension tubs, and the two ends of described high thrust bearing lean the end face setting of the end face and the described big conical sleeve tube of described bearing left end circle respectively; Described low thrust bearing housing is located in the described big circular cone exntension tubs, and the two ends of described low thrust bearing lean the end face setting of the end face and the described bearing right-hand member circle of described conicle sleeve respectively.
Further, be Spielpassung between described high thrust bearing and the described conicle exntension tubs, be Spielpassung between described low thrust bearing and the described big circular cone exntension tubs.
Further in, the interior edge face of described bearing left end circle and described conicle sleeve between the end face of described conicle exntension tubs end mutually against setting, the interior edge face of described bearing right-hand member circle and described big conical sleeve tube between the end face of described big circular cone exntension tubs end mutually against setting.
Further, be Spielpassung between described big conical sleeve tube and the described conicle sleeve.
Further, described high thrust bearing is any in roller thrust bearing, thrust ball bearing, taper roller thrust bearing and the needle bearing.
Be any in roller thrust bearing, thrust ball bearing, taper roller thrust bearing and the needle bearing in, described low thrust bearing further.
Further, described inner conical surface is the female cone profile, and described male cone (strobilus masculinus) is the outer cone profile.
The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:
By high thrust bearing in parallel and big conical sleeve tube and conicle sleeve and low thrust bearing are set in this thrust-bearing, make this thrust-bearing compact structure, and form in parallel has realized the even distribution of load, effectively reduce the load of each bearing parts, improve bearing capacity, increase the service life, and save the space.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the thrust-bearing that provides of the utility model embodiment one;
Fig. 2 is the structural representation of big conical sleeve tube in the thrust-bearing that provides of the utility model embodiment one;
Fig. 3 is the structural representation of the medium and small circular cone sleeve of thrust-bearing that provides of the utility model embodiment one;
Fig. 4 is the schematic representation of thrust-bearing when series connection is used that the utility model embodiment two provides.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, the utility model mode of execution is described in further detail below in conjunction with accompanying drawing.
Embodiment one
Present embodiment provides a kind of thrust-bearing, and please in conjunction with referring to Fig. 1, Fig. 2 and Fig. 3, this thrust-bearing comprises: bearing left end circle 1, high thrust bearing 2, big conical sleeve tube 3, conicle sleeve 4, low thrust bearing 5 and bearing right-hand member circle 6.Wherein, big conical sleeve tube 3 has inner conical surface 31 and big circular cone exntension tubs 32, and conicle sleeve 4 has male cone (strobilus masculinus) 41 and conicle exntension tubs 42.Preferably, inner conical surface 31 is the female cone profile, and male cone (strobilus masculinus) 41 is the outer cone profile.As other mode of execution, inner conical surface 31 and male cone (strobilus masculinus) 41 also can be that other forms can realize the profile that sectional area changes.
Bearing left end circle 1 and bearing right-hand member circle 6 are separately positioned on the two ends of thrust-bearing, the setting that matches with the male cone (strobilus masculinus) 41 of conicle sleeve 4 at inner conical surface 31 places of big conical sleeve tube 3, the male cone (strobilus masculinus) 41 that is conicle sleeve 4 gos deep in the inner conical surface 31 of big conical sleeve tube 3, the big circular cone exntension tubs 32 of big conical sleeve tube 3 reach the bottom end outside of conicle sleeve 4, and the conicle exntension tubs 42 of conicle sleeve 4 reach the bottom end outside of big conical sleeve tube 3.Preferably, be Spielpassung between the inwall of big conical sleeve tube 3 and the outer wall of conicle sleeve 4, like this can penetrating oil between the outer wall of the inwall of conical sleeve tube 3 greatly and conicle sleeve 4, help lubricating this thrust-bearing.
High thrust bearing 2 is set in outside the conicle exntension tubs 42, and the two ends of high thrust bearing 2 lean the end face setting of the end face and the big conical sleeve tube 3 of bearing left end circle 1 respectively.Be that the end face of high thrust bearing 2 and the interior edge face of bearing left end circle 1 lean setting mutually, but can radially slide relatively between high thrust bearing 2 and the bearing left end circle 1; Another end face of high thrust bearing 2 leans setting mutually with the end face of inner conical surface 31 1 ends of big conical sleeve tube 3, but high thrust bearing 2 with can radially slide relatively between the conical sleeve tube 3 greatly.Preferably, be Spielpassung between high thrust bearing 2 and the conicle exntension tubs 42, promptly have the gap of certain width between the outer wall of the inner ring face of high thrust bearing 2 and conicle exntension tubs 42, help the lubricating oil infiltration like this.High thrust bearing 2 is a roller thrust bearing, and as other mode of execution, high thrust bearing 2 can be any in thrust ball bearing, taper roller thrust bearing and the needle bearing.
Low thrust bearing 5 is set in the big circular cone exntension tubs 32, and the two ends of low thrust bearing 5 lean the end face setting of the end face and the bearing right-hand member circle 6 of conicle sleeve 4 respectively.Be that the end face of low thrust bearing 5 and the interior edge face of bearing right-hand member circle 6 lean setting mutually, but can radially slide relatively between low thrust bearing 5 and the bearing right-hand member circle 6; The end face of male cone (strobilus masculinus) 41 1 ends of another end face of low thrust bearing 5 and conicle sleeve 4 leans setting mutually, but can radially slide relatively between low thrust bearing 5 and the conicle sleeve 4.Preferably, be Spielpassung between low thrust bearing 5 and the big circular cone exntension tubs 32, help the lubricating oil infiltration like this.Low thrust bearing 5 is a roller thrust bearing, and as other mode of execution, low thrust bearing 5 can be any in thrust ball bearing, taper roller thrust bearing and the needle bearing.
The interior edge face of bearing left end circle 1 and conicle sleeve 4 between the end face of conicle exntension tubs 42 ends mutually against setting, the interior edge face of bearing right-hand member circle 6 and big conical sleeve tube 3 between the end face of big circular cone exntension tubs 32 ends mutually against setting.Like this, the axial force that bearing left end circle 1 transmits can be transmitted to bearing right-hand member circle 6 by high thrust bearing 2 and big conical sleeve tube 3, and the axial force that bearing left end circle 1 transmits also can be transmitted to bearing right-hand member circle 6 by conicle sleeve 4 and low thrust bearing 5.Promptly between bearing left end circle 1 and bearing right-hand member circle 6, formed the axial force transmission route of two parallel connections, be that bearing left end circle 1, high thrust bearing 2, big conical sleeve tube 3 and bearing right-hand member circle 6 are one group of thrust-bearing, bearing left end circle 1, conicle sleeve 4, low thrust bearing 5 and bearing right-hand member circle 6 are another group thrust-bearing, these two groups of bearings constitute relation in parallel, can realize the decomposition of load.
Thrust-bearing of the present utility model Load Transfer relation in the axial direction is:
The load that bearing left end circle 1 is accepted passes to high thrust bearing 2 and conicle sleeve 4 simultaneously, equally, the load that high thrust bearing 2 and conicle sleeve 4 are accepted also passes to bearing left end circle 1 simultaneously, i.e. bearing left end circle 1 and high thrust bearing 2, conicle sleeve 4 mutual transmitted loads.High thrust bearing 2 plays the middle effect that load power is transmitted between bearing left end circle 1 and big conical sleeve tube 3, promptly a part of Load Transfer of bearing left end circle 1 gives big conical sleeve tube 3 with this Load Transfer for high thrust bearing 2, high thrust bearing 2 again, and vice versa.Equally, big conical sleeve tube 3 plays the effect of Load Transfer between high thrust bearing 2 and bearing right-hand member circle 6, and big conical sleeve tube 3 is accepted to give bearing right-hand member circle 6 with this Load Transfer again behind the load that high thrust bearing 2 passes to it.The transitive relation of load also is same principle between bearing left end circle 1, conicle sleeve 4, low thrust bearing 5 and the bearing right-hand member circle 6.
Embodiment two
Present embodiment provides a kind of thrust-bearing, sees also Fig. 4, and this thrust-bearing is with a plurality of thrust-bearings that embodiment one describes use that is together in series, and forms thrust bearings jointly.Like this, the transmission performance of load is better, can solve specific problem in a lot of specific occasions.
Above-mentioned the utility model embodiment sequence number is not represented embodiment's quality just to description.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. thrust-bearing, it is characterized in that, described thrust-bearing comprises: bearing left end circle (1), high thrust bearing (2), big conical sleeve tube (3), conicle sleeve (4), low thrust bearing (5) and bearing right-hand member circle (6), described big conical sleeve tube (3) has inner conical surface (31) and big circular cone exntension tubs (32), and described conicle sleeve (4) has male cone (strobilus masculinus) (41) and conicle exntension tubs (42);
Described bearing left end circle (1) and described bearing right-hand member circle (6) are separately positioned on the two ends of described thrust-bearing, and described big conical sleeve tube (3) is in described inner conical surface (31) setting of locating to match with the described male cone (strobilus masculinus) (41) of described conicle sleeve (4);
Described high thrust bearing (2) is set in outside the described conicle exntension tubs (42), and the two ends of described high thrust bearing (2) lean the end face setting of the end face and the described big conical sleeve tube (3) of described bearing left end circle (1) respectively;
Described low thrust bearing (5) is set in the described big circular cone exntension tubs (32), and the two ends of described low thrust bearing (5) lean the end face setting of the end face and the described bearing right-hand member circle (6) of described conicle sleeve (4) respectively.
2. thrust-bearing according to claim 1 is characterized in that, is Spielpassung between described high thrust bearing (2) and the described conicle exntension tubs (42), is Spielpassung between described low thrust bearing (5) and the described big circular cone exntension tubs (32).
3. thrust-bearing according to claim 2, it is characterized in that, the interior edge face of described bearing left end circle (1) and described conicle sleeve (4) between the end face of described conicle exntension tubs (42) ends mutually against setting, the interior edge face of described bearing right-hand member circle (6) and described big conical sleeve tube (3) between the end face that described big circular cone exntension tubs (32) are held mutually against setting.
4. thrust-bearing according to claim 3 is characterized in that, is Spielpassung between described big conical sleeve tube (3) and the described conicle sleeve (4).
5. thrust-bearing according to claim 4 is characterized in that, described high thrust bearing (2) is any in roller thrust bearing, thrust ball bearing, taper roller thrust bearing and the needle bearing.
6. thrust-bearing according to claim 4 is characterized in that, described low thrust bearing (5) is any in roller thrust bearing, thrust ball bearing, taper roller thrust bearing and the needle bearing.
7. according to claim 5 or 6 described thrust-bearings, it is characterized in that described inner conical surface (31) is the female cone profile, described male cone (strobilus masculinus) (41) is the outer cone profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708704 CN203098566U (en) | 2012-12-19 | 2012-12-19 | Thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708704 CN203098566U (en) | 2012-12-19 | 2012-12-19 | Thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098566U true CN203098566U (en) | 2013-07-31 |
Family
ID=48849971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220708704 Withdrawn - After Issue CN203098566U (en) | 2012-12-19 | 2012-12-19 | Thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883619A (en) * | 2012-12-19 | 2014-06-25 | 中国石油天然气集团公司 | Thrust bearing |
| CN108222833A (en) * | 2017-12-18 | 2018-06-29 | 中国科学院地质与地球物理研究所 | Two-way load mud bearing arrangement and the rotary steerable tool using the bearing arrangement |
-
2012
- 2012-12-19 CN CN 201220708704 patent/CN203098566U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883619A (en) * | 2012-12-19 | 2014-06-25 | 中国石油天然气集团公司 | Thrust bearing |
| CN108222833A (en) * | 2017-12-18 | 2018-06-29 | 中国科学院地质与地球物理研究所 | Two-way load mud bearing arrangement and the rotary steerable tool using the bearing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |