CN203114912U - Bearing pedestal and downhole power tool - Google Patents
Bearing pedestal and downhole power tool Download PDFInfo
- Publication number
- CN203114912U CN203114912U CN 201320018174 CN201320018174U CN203114912U CN 203114912 U CN203114912 U CN 203114912U CN 201320018174 CN201320018174 CN 201320018174 CN 201320018174 U CN201320018174 U CN 201320018174U CN 203114912 U CN203114912 U CN 203114912U
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- CN
- China
- Prior art keywords
- bearing support
- bearing
- pedestal
- threaded joints
- threaded connection
- 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 - Lifetime
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Abstract
The utility model provides a bearing pedestal and a downhole power tool. The bearing pedestal comprises a pedestal body and a plurality of threaded connection parts, wherein the pedestal body is provided with a bearing mounting hole; and the plurality of threaded connection parts are arranged in a protruded mode along the circumference of the pedestal body, the circumferential side wall of each threaded connection part is provided with an external thread, the plurality of threaded connection parts are arranged at certain intervals, and a fluid channel is formed between two adjacent threaded connection parts. Because the threaded connection parts are provided with the external threads, the external threads can be used for being matched with internal threads on the inner wall of a shell of the downhole power tool. A central spindle of the downhole power tool is arranged on the bearing pedestal through a bearing. In a process of drilling inwards, with the rotation of the central spindle, the threads between the bearing pedestal and the shell are screwed more and more tightly, and therefore, a situation that the bearing pedestal and components such as the central spindle arranged on the bearing pedestal fall off can be prevented.
Description
Technical field
The utility model relates to the geology field, particularly a kind of bearing support and well dynamic instrument.
Background technique
Use bearing and bearing support through regular meeting in the well dynamic instrument of the prior art (as shaft bottom motor etc.); yet; bearing support of the prior art all is that the mode by interference fit is connected with shell; therefore; in use, there is the risk that comes off, in case come off; will cause security incident, cause damage.
The model utility content
The utility model provide a kind of simple in structure, cost is low, can prevent the bearing support and the well dynamic instrument that come off.
For addressing the above problem, as first aspect of the present utility model, provide a kind of bearing support, comprising: pedestal offers bearing mounting hole on the pedestal; A plurality of threaded joints, a plurality of threaded joints circumferentially arrange highlightedly along pedestal, and the circumferential side wall of threaded joints is provided with outside thread, and a plurality of threaded joints compartment of terrain arranges, and forms the fluid passage between adjacent two threaded joints.
Further, a plurality of threaded joints circumferentially evenly distributing along pedestal.
Further, the number of threaded joints is two.
Further, bearing support also comprises fitting operation spare, and fitting operation spare is arranged on the end face of pedestal highlightedly, and has the through hole that connects with bearing mounting hole.
Further, fitting operation spare is polygonal.
Further, fitting operation spare is Hexagon.
Further, bearing mounting hole comprises first portion and the second portion that sets gradually, and the diameter of first portion is greater than the diameter of second portion, and the diameter of through hole equals the diameter of second portion.
As second aspect of the present utility model, a kind of well dynamic instrument is provided, comprise mandrel, bearing support and shell, this bearing support is above-mentioned bearing support, mandrel is connected with bearing support by bearing; Outside thread on the threaded joints of bearing support is connected with internal thread on the inwall of shell.
Further, the well dynamic instrument is the shaft bottom motor.
Owing to be provided with outside thread at threaded joints, therefore, can utilize the internal thread on the inwall of this outside thread and the shell of well dynamic instrument to match.The mandrel of well dynamic instrument is installed on this bearing support by bearing.In the process of creeping into, along with the rotation of mandrel, the screw thread between bearing support and the shell is more stubborn more tight, thereby can prevent coming off of bearing support and parts such as mandrel mounted thereto.
Description of drawings
Fig. 1 schematically shows stereogram of the present utility model;
Fig. 2 schematically shows plan view of the present utility model; And
Fig. 3 schematically shows the A-A sectional view of Fig. 2.
Reference character among the figure: 10, pedestal; 11, bearing mounting hole; 20, threaded joints; 30, fitting operation spare; 40, fluid passage.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of bearing support.As shown in Figures 1 to 3, this bearing support comprises: pedestal 10 offers bearing mounting hole 11 on the pedestal 10; A plurality of threaded joints 20, a plurality of threaded joints 20 circumferentially arrange highlightedly along pedestal 10, the circumferential side wall of threaded joints 20 is provided with outside thread, and a plurality of threaded joints 20 compartment of terrains arrange, and forms fluid passage 40 between adjacent two threaded joints 20.Fluids such as the mud in the drilling process can be flow through by fluid passage 40.
Owing to be provided with outside thread at threaded joints 20, therefore, can utilize the internal thread on the inwall of this outside thread and the shell of well dynamic instrument to match.The mandrel of well dynamic instrument is installed on this bearing support by bearing.In the process of creeping into, along with the rotation of mandrel, the screw thread between bearing support and the shell is more stubborn more tight, thereby can prevent coming off of bearing support and parts such as mandrel mounted thereto.In addition, the utility model low characteristics of simple in structure, cost also.
Preferably, a plurality of threaded joints 20 circumferentially evenly distributing along pedestal 10.Preferably, the number of threaded joints 20 is two.
Preferably, bearing support also comprises fitting operation spare 30, and fitting operation spare 30 is arranged on the end face of pedestal 10 highlightedly, and has the through hole that connects with bearing mounting hole 11.Preferably, fitting operation spare 30 is polygonal.Preferably, fitting operation spare 30 is Hexagon.
During installation, bearing support is put into shell, tool using blocks this fitting operation spare 30 then, thereby the outside thread on the threaded joints 20 is screwed in the internal thread on the outer casing inner wall, finishes installation.Owing to be provided with fitting operation spare 30, made things convenient for installation, improved efficient and the precision of installing.
Preferably, bearing mounting hole 11 comprises first portion and the second portion that sets gradually, and the diameter of first portion is greater than the diameter of second portion, and the diameter of through hole equals the diameter of second portion.Like this, make bearing mounting hole 11 form a step-like portion, with carrier bearing, prevent that bearing to the direction motion of fitting operation spare 30, simultaneously, also can make the end of mandrel pass bearing support, so that the driving beam barrel wait parts of power tool are connected with advancing down.Especially, an end that drives beam barrel is connected with this end of mandrel, and the other end is connected with drill bit.When mandrel rotates, can drive drill bit movement by driving beam barrel.
As second aspect of the present utility model, a kind of well dynamic instrument is provided, comprise mandrel, bearing support and shell, this bearing support is above-mentioned bearing support, mandrel is connected with bearing support by bearing; Outside thread on the threaded joints 20 of bearing support is connected with internal thread on the inwall of shell.Preferably, the well dynamic instrument is the shaft bottom motor.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a bearing support is characterized in that, comprising:
Pedestal (10) offers bearing mounting hole (11) on the described pedestal (10);
A plurality of threaded joints (20), described a plurality of threaded joints (20) circumferentially arranges highlightedly along described pedestal (10), the circumferential side wall of described threaded joints (20) is provided with outside thread, described a plurality of threaded joints (20) compartment of terrain arranges, and forms fluid passage (40) between adjacent two described threaded joints (20).
2. bearing support according to claim 1 is characterized in that, described a plurality of threaded joints (20) circumferentially evenly distribute along described pedestal (10).
3. bearing support according to claim 1 is characterized in that, the number of described threaded joints (20) is two.
4. bearing support according to claim 1, it is characterized in that, described bearing support also comprises fitting operation spare (30), and described fitting operation spare (30) is arranged on the end face of described pedestal (10) highlightedly, and has the through hole that connects with described bearing mounting hole (11).
5. bearing support according to claim 4 is characterized in that, described fitting operation spare (30) is polygonal.
6. bearing support according to claim 4 is characterized in that, described fitting operation spare (30) is Hexagon.
7. bearing support according to claim 4, it is characterized in that, described bearing mounting hole (11) comprises first portion and the second portion that sets gradually, and the diameter of described first portion is greater than the diameter of described second portion, and the diameter of described through hole equals the diameter of described second portion.
8. a well dynamic instrument comprises mandrel, bearing support and shell, it is characterized in that, described bearing support is each described bearing support in the claim 1 to 7, and described mandrel is connected with described bearing support by bearing; Outside thread on the threaded joints of described bearing support (20) is connected with internal thread on the inwall of described shell.
9. well dynamic instrument according to claim 8 is characterized in that, described well dynamic instrument is the shaft bottom motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018174 CN203114912U (en) | 2013-01-08 | 2013-01-08 | Bearing pedestal and downhole power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018174 CN203114912U (en) | 2013-01-08 | 2013-01-08 | Bearing pedestal and downhole power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114912U true CN203114912U (en) | 2013-08-07 |
Family
ID=48895262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320018174 Expired - Lifetime CN203114912U (en) | 2013-01-08 | 2013-01-08 | Bearing pedestal and downhole power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820929A (en) * | 2017-03-30 | 2018-11-16 | 岳池巨力创新科技有限公司 | A kind of loading or unloading pallet |
| CN108891937A (en) * | 2017-03-30 | 2018-11-27 | 岳池巨力创新科技有限公司 | A kind of automobile dumper bottom tray |
-
2013
- 2013-01-08 CN CN 201320018174 patent/CN203114912U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820929A (en) * | 2017-03-30 | 2018-11-16 | 岳池巨力创新科技有限公司 | A kind of loading or unloading pallet |
| CN108891937A (en) * | 2017-03-30 | 2018-11-27 | 岳池巨力创新科技有限公司 | A kind of automobile dumper bottom tray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |