CN204492811U - With the nearly drill bit strong magnet activating instrument of magnetic screen - Google Patents
With the nearly drill bit strong magnet activating instrument of magnetic screen Download PDFInfo
- Publication number
- CN204492811U CN204492811U CN201420865144.9U CN201420865144U CN204492811U CN 204492811 U CN204492811 U CN 204492811U CN 201420865144 U CN201420865144 U CN 201420865144U CN 204492811 U CN204492811 U CN 204492811U
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- CN
- China
- Prior art keywords
- strong magnet
- magnetic conduction
- conduction subassembly
- drill bit
- magnetic
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of nearly drill bit strong magnet activating instrument with magnetic screen; comprise and activate body and protective sleeve; activate body and comprise handle, the first housing, the first magnetic conduction subassembly and strong magnet; protective sleeve comprises secondary shielding cover and the second magnetic conduction subassembly; first magnetic conduction subassembly is coated on the outer wall of strong magnet and has opening on the lower surface of strong magnet; one end of first housing is set in the top of the first magnetic conduction subassembly; the other end is connected with handle, and protective sleeve is used for the magnetic part that coated activation body exposes the first housing.The utility model adopts protective sleeve can protect the strong magnet part activated on body, effectively avoids magnetic field to leak, prevents strong magnet from attracting other materials, and protective sleeve and activation body adopt connecting line to be connected, convenient preservation.
Description
Technical field
The utility model relates to field of petroleum machinery, particularly relates to a kind of nearly drill bit strong magnet activating instrument with magnetic screen.
Background technology
In the directed drilling construction of oil, natural gas and coal bed gas etc., require that wellbore trace creeps into according to the track of design exactly.Therefore, the accurate orientation survey data how obtaining nearly drill bit are that directional well is constructed successful key factor.Along with the development of the present drilling technology such as technology such as horizontal well, Multilateral Wells, drillng operation needs the instant messages obtaining stratum and drilling tool position in time, this just facilitates developing rapidly of the fields such as the support of nearly drill bit and measurement, it can determine the silica-based and formation lithology of well in real time, thus can determine target spot hit situation in real time.
Nearly drill bit instrument can measure resistivity and the natural gamma geologic parameter at drill bit place in real time in drilling process.Nearly drill bit instrument generally comprises: resistivity probe unit, for measuring nearly drill bit formation resistivity, generates resistivity data; Gamma probe unit, for measuring nearly drill bit gamma rays, generates gamma ray data; Orientation sensing unit, for measuring nearly drill bit hole deviation and tool-face, generates directional data; Insulation dipole emission unit, for passing through wireless electromagnetic transmission to ground by resistivity data, gamma ray data and directional data.Make various geosteering acquisition sensor, insulation dipole launcher and drill bit integrated, and make various acquisition sensor closer to drill bit, achieve before drill bit and the prediction of drill bit surrounding formation situation, the data that acquisition sensor gathers are launched by insulation dipole antenna, ground is sent to through the wireless electromagnetic channel that direct transfers, thus to the timely decision-making of Drilling Design, revise in time.
A chip is had in nearly drill bit measuring instrument, the strong magnet activating instrument by having strong magnet is only had to activate, the corresponding groove be provided with for holding strong magnet in position of this chip is set, but strong magnet is due to the strong adsorptive properties of himself, in use often adsorb many iron filings, this just causes causing scuffing to nearly drill bit measuring instrument in the process using strong magnet activating instrument chip for activating, shortens the application life of nearly drill bit measuring instrument; Meanwhile, strong magnet leakage field also can produce interference to the electronic device of annex, and can be siphoned away by the object containing iron, and these all can cause damage to strong magnet activating instrument and iron content object, even can endanger personal safety.
Utility model content
In order to solve the problems of the technologies described above; the utility model provides a kind of nearly drill bit strong magnet activating instrument with magnetic screen; comprise and activate body and protective sleeve; described activation body comprises handle 1, first housing 2, first magnetic conduction subassembly 3 and strong magnet 4; described protective sleeve comprises secondary shielding cover 6 and the second magnetic conduction subassembly 5; wherein
Described first magnetic conduction subassembly 3 is coated on the outer wall of described strong magnet 4 and has opening on the lower surface of strong magnet 4, one end of described first housing 2 is set in the top of described first magnetic conduction subassembly 3, the other end is connected with described handle 1, described second magnetic conduction subassembly 5 is for holding the first not coated by described first housing 2 magnetic conduction subassembly and strong magnet part, and described secondary shielding cover 5 is arranged on the outside of described second magnetic conduction subassembly 6.
Preferably, in order to prevent protective sleeve from losing, also comprise connecting line 7, described connecting line 7 is for connecting described handle 1 and secondary shielding cover 6.
Preferably, the tail end of described handle 1 has axis hole, is provided with connecting axle in described axis hole, described connecting axle is provided with the latch closure for fixing described connecting line 7.
Preferably, in order to shield the magnetic field of strong magnet better, and prevent magnetic conduction subassembly from getting rusty, the material of described first magnetic conduction subassembly 3 and the second magnetic conduction subassembly 6 is martensitic precipitation.
Alternatively, the material of described first magnetic conduction subassembly 3 and the second magnetic conduction subassembly 6 is permalloy or ferroaluminium.
Preferably, in order to strengthen the effect of magnetic screen further, the material of described first housing 2 and secondary shielding cover 6 is copper.
Preferably, described first housing 2 and the first magnetic conduction subassembly 3 are interference fit, and described secondary shielding cover 6 and the second magnetic conduction subassembly 5 are interference fit.
Preferably, described first magnetic conduction subassembly 3 is connected by bonding adhesive with strong magnet.
Preferably, the inner side of described first magnetic conduction subassembly 3 is provided with several for holding the groove of bonding adhesive.
Preferably, described connecting line 7 is wire rope.
The nearly drill bit strong magnet activating instrument of the band magnetic screen that the utility model provides, has following beneficial effect:
1, adopt protective sleeve can protect the strong magnet part activated on body, effectively avoid magnetic field to leak, and protective sleeve and activation body adopt connecting line to be connected, and can effectively prevent protective sleeve from losing, convenient preservation;
2, adopt the mode that the first housing and the first magnetic conduction subassembly combine, secondary shielding overlaps and the second magnetic conduction subassembly combines, effectively can shield the magnetic field of strong magnet, thus prevent strong magnet from attracting other materials;
3, the first magnetic conduction subassembly and the second magnetic conduction subassembly adopt martensitic precipitation material, and this material is high-permeability material and can not gets rusty, and adopts this material can extend the application life of instrument, and effectively can shield the magnetic field in it;
4, the utility model the first housing of having copper product to make in the arranged outside of the first magnetic conduction subassembly and the second magnetic conduction subassembly and secondary shielding cover, the magnetic field of its inside can be shielded more up hill and dale, through experiment measuring, adopt this programme, the magnetic field of the activating instrument outside that the utility model provides is negligible.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art and advantage, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the nearly drill bit strong magnet activating instrument of the band magnetic screen that the utility model provides;
Fig. 2 is the sectional drawing of the nearly drill bit strong magnet activating instrument of the band magnetic screen that the utility model provides;
In figure: 1-handle, 2-first housing, 3-first magnetic conduction subassembly, 4-strong magnet, 5-second magnetic conduction subassembly, 6-secondary shielding cover, 7-connecting line.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
Embodiment:
Refer to Fig. 1-Fig. 2; the utility model embodiment provides a kind of nearly drill bit strong magnet activating instrument with magnetic screen; comprise and activate body and protective sleeve; described activation body comprises handle 1, first housing 2, first magnetic conduction subassembly 3 and strong magnet 4; described protective sleeve comprises secondary shielding cover 6 and the second magnetic conduction subassembly 5; wherein
Described first magnetic conduction subassembly 3 is coated on the outer wall of described strong magnet 4 and has opening on the lower surface of strong magnet 4, one end of described first housing 2 is set in the top of described first magnetic conduction subassembly 3, the other end is connected with described handle 1, described second magnetic conduction subassembly 5 is for holding the first not coated by described first housing 2 magnetic conduction subassembly and strong magnet part, and described secondary shielding cover 5 is arranged on the outside of described second magnetic conduction subassembly 6.
Preferably, in order to prevent protective sleeve from losing, also comprise connecting line 7, described connecting line 7 is for connecting described handle 1 and secondary shielding cover 6.
Preferably, the tail end of described handle 1 has axis hole, is provided with connecting axle in described axis hole, described connecting axle is provided with the latch closure for fixing described connecting line 7.
Preferably, in order to shield the magnetic field of strong magnet better, and prevent magnetic conduction subassembly from getting rusty, the material of described first magnetic conduction subassembly 3 and the second magnetic conduction subassembly 6 is martensitic precipitation.
Alternatively, the material of described first magnetic conduction subassembly 3 and the second magnetic conduction subassembly 6 is permalloy or ferroaluminium.
Preferably, in order to strengthen the effect of magnetic screen further, the material of described first housing 2 and secondary shielding cover 6 is copper.
Preferably, described first housing 2 and the first magnetic conduction subassembly 3 are interference fit, and described secondary shielding cover 6 and the second magnetic conduction subassembly 5 are interference fit.
Preferably, described first magnetic conduction subassembly 3 is connected by bonding adhesive with strong magnet.
Preferably, the inner side of described first magnetic conduction subassembly 3 is provided with several for holding the groove of bonding adhesive.
Preferably, described connecting line 7 is wire rope.
The nearly drill bit strong magnet activating instrument of the band magnetic screen that the utility model provides, has following beneficial effect:
1, adopt protective sleeve can protect the strong magnet part activated on body, effectively avoid magnetic field to leak, and protective sleeve and activation body adopt connecting line to be connected, and can effectively prevent protective sleeve from losing;
2, adopt the mode that the first housing and the first magnetic conduction subassembly combine, secondary shielding overlaps and the second magnetic conduction subassembly combines, effectively can shield the magnetic field of strong magnet;
3, the first magnetic conduction subassembly and the second magnetic conduction subassembly adopt martensitic precipitation material, and this material is high-permeability material and can not gets rusty, and adopts this material can extend the application life of instrument, and effectively can shield the magnetic field in it;
4, the utility model the first housing of having copper product to make in the arranged outside of the first magnetic conduction subassembly and the second magnetic conduction subassembly and secondary shielding cover, the magnetic field of its inside can be shielded more up hill and dale, through experiment measuring, adopt this programme, the magnetic field of the activating instrument outside that the utility model provides is negligible.
The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. be with the nearly drill bit strong magnet activating instrument of magnetic screen; it is characterized in that; comprise and activate body and protective sleeve; described activation body comprises handle (1), the first housing (2), the first magnetic conduction subassembly (3) and strong magnet (4); described protective sleeve comprises secondary shielding cover (6) and the second magnetic conduction subassembly (5); wherein
Described first magnetic conduction subassembly (3) is coated on the outer wall of described strong magnet (4) and has opening on the lower surface of strong magnet (4), one end of described first housing (2) is set in the top of described first magnetic conduction subassembly (3), the other end is connected with described handle (1), described second magnetic conduction subassembly (5) is for holding the first not coated by described first housing (2) magnetic conduction subassembly and strong magnet part, and described secondary shielding cover (5) is arranged on the outside of described second magnetic conduction subassembly (6).
2. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 1, it is characterized in that, also comprise connecting line (7), described connecting line (7) is for connecting described handle (1) and secondary shielding cover (6).
3. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 2, it is characterized in that, the tail end of described handle (1) has axis hole, is provided with connecting axle in described axis hole, described connecting axle is provided with the latch closure for fixing described connecting line (7).
4. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 2, is characterized in that, the material of described first magnetic conduction subassembly (3) and the second magnetic conduction subassembly (6) is martensitic precipitation.
5. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 2, is characterized in that, the material of described first magnetic conduction subassembly (3) and the second magnetic conduction subassembly (6) is permalloy or ferroaluminium.
6. the nearly drill bit strong magnet activating instrument of the band magnetic screen according to claim 4 or 5, is characterized in that, the material of described first housing (2) and secondary shielding cover (6) is copper.
7. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 6, it is characterized in that, described first housing (2) and the first magnetic conduction subassembly (3) are interference fit, and described secondary shielding cover (6) and the second magnetic conduction subassembly (5) are interference fit.
8. the nearly drill bit strong magnet activating instrument of the band magnetic screen according to claim 4 or 5 or 7, is characterized in that, described first magnetic conduction subassembly (3) is connected by bonding adhesive with strong magnet.
9. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 8, is characterized in that, the inner side of described first magnetic conduction subassembly (3) is provided with several for holding the groove of bonding adhesive.
10. the nearly drill bit strong magnet activating instrument of band magnetic screen according to claim 7, it is characterized in that, described connecting line (7) is wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865144.9U CN204492811U (en) | 2014-12-31 | 2014-12-31 | With the nearly drill bit strong magnet activating instrument of magnetic screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865144.9U CN204492811U (en) | 2014-12-31 | 2014-12-31 | With the nearly drill bit strong magnet activating instrument of magnetic screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492811U true CN204492811U (en) | 2015-07-22 |
Family
ID=53572135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865144.9U Withdrawn - After Issue CN204492811U (en) | 2014-12-31 | 2014-12-31 | With the nearly drill bit strong magnet activating instrument of magnetic screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564045A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Near-bit strong magnet activator with magnetic shielding |
| CN108806527A (en) * | 2018-08-10 | 2018-11-13 | 深圳市艾比森光电股份有限公司 | LED display |
-
2014
- 2014-12-31 CN CN201420865144.9U patent/CN204492811U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564045A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Near-bit strong magnet activator with magnetic shielding |
| CN104564045B (en) * | 2014-12-31 | 2017-10-27 | 贝兹维仪器(苏州)有限公司 | Nearly drill bit strong magnet activating instrument with magnetic screen |
| CN108806527A (en) * | 2018-08-10 | 2018-11-13 | 深圳市艾比森光电股份有限公司 | LED display |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20171027 |