CN204436303U - A kind of coring bit drive unit - Google Patents
A kind of coring bit drive unit Download PDFInfo
- Publication number
- CN204436303U CN204436303U CN201520081115.8U CN201520081115U CN204436303U CN 204436303 U CN204436303 U CN 204436303U CN 201520081115 U CN201520081115 U CN 201520081115U CN 204436303 U CN204436303 U CN 204436303U
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- Prior art keywords
- coring bit
- gear
- curved teeth
- drive unit
- power transmission
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a kind of coring bit drive unit, comprise coring bit, direct current generator and flexible axle, wherein, also comprise gear mechanism, described direct current generator is by described flexible axle by power transmission extremely described gear mechanism, and described gear mechanism drives described coring bit to rotate.Above-mentioned coring bit drive unit is used in oil exploration technology field, and gear mechanism and the flexible axle of above-mentioned coring bit drive unit match, and ensures steady and continuous transmission and improves efficiency and get core success rate.
Description
Technical field
The utility model relates to oil exploration technology field, particularly relates to a kind of coring bit drive unit.
Background technology
Need to use side-wall core extractor core drilling in oil well logging process, and the part of the key of order coring apparatus is exactly bit part.Current conventional side-wall core extractor adopts hydraulic pump drive hydraulic motor to drive the mode of diamond bit core drilling to carry out coring.The technological deficiency that the gross efficiency of hydraulic motor existence own is not high, and it is not high to get core success rate yet.Because hydraulic motor relatively more conventional at present needs to bear very large system pressure, under high temperature and high pressure environment, occur to leak relatively more frequent, be one of major reason of getting core failure, this is to the core analysis in later stage, and Reservoir Analysis all brings a lot of problem.
Utility model content
The purpose of this utility model is to provide a kind of high efficiency, gets the coring bit drive unit that core success rate is high.
In order to realize foregoing invention object, the utility model provides a kind of coring bit drive unit, comprise coring bit, direct current generator and flexible axle, wherein, also comprise gear mechanism, described direct current generator is by described flexible axle by power transmission extremely described gear mechanism, and described gear mechanism drives described coring bit to rotate.
Further, described gear mechanism comprises large gear with curved teeth, little gear with curved teeth and power transmission shaft, described large gear with curved teeth is engaged with described little gear with curved teeth, described little gear with curved teeth is connected with described flexible axle, described large gear with curved teeth is set on described power transmission shaft, and fixing, described end part of driving shaft and described coring bit are fixed.
Further, described gear mechanism also comprises gear-box, and described gearbox cover fills described large gear with curved teeth and little gear with curved teeth, and is connected being formed with described power transmission shaft near described power transmission shaft end positions by bearing.
Further, described power transmission shaft runs through described gear-box.
Compared to the prior art the utility model, has following beneficial effect:
Coring bit drive unit described in the utility model adopts direct current generator, and relative to hydraulic motor, direct current generator has higher operating efficiency, and avoids and occur that hydraulic motor occurs to leak the situation causing getting core failure.
Coring bit drive unit described in the utility model adopts soft axle transmission, and transmission efficiency is high, and it is high to get core effective efficiency, and it is relatively just high to get core success rate.
Coring bit drive unit described in the utility model adopts large gear with curved teeth and little gear with curved teeth, and coordinates transmission with flexible axle, and ensureing still can transmission continuously and stably when getting the change of core direction.
Coring bit driving device structure described in the utility model is compact, solid and reliable, is convenient to installation and removal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model coring bit drive unit;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
Reference numeral: 1-flexible axle, 2-gear mechanism, 3-coring bit, the large gear with curved teeth of 4-, the little gear with curved teeth of 5-, 6-power transmission shaft, 7-bearing, 8-gear-box, 9-gearbox seals circle, 10-flexible shaft protecting.
Detailed description of the invention
Clearly understand for making goal of the invention of the present utility model, technical scheme and beneficial effect, below in conjunction with accompanying drawing, embodiment of the present utility model is described, it should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
Embodiment is the structural representation of coring bit drive unit see Fig. 1, Fig. 1.As shown in Figure 1, coring bit drive unit comprises coring bit 3, direct current generator and flexible axle 1, it is characterized in that, also comprise gear mechanism 2, described flexible axle 1 one end is connected with the output of described direct current generator, the other end connects the input of described gear mechanism 2, and the output of gear mechanism 2 is fixedly connected with coring bit 3.
Fig. 2 and Fig. 3 is respectively the sectional view of Fig. 1.As shown in Figures 2 and 3, gear mechanism 2 comprises large gear with curved teeth 4, little gear with curved teeth 5, power transmission shaft 6 and gear-box 8, flexible axle 1 is connected with little gear with curved teeth 5, little gear with curved teeth 5 placement vertical with large gear with curved teeth 4 and being mutually engaged, power transmission shaft 6 runs through large gear with curved teeth 4 center and fixes with large gear with curved teeth 4, and gear-box 8 cover fills described large gear with curved teeth 4 and little gear with curved teeth 5.Gear-box 8 is transmitted axle 6 to be run through, and by two bearings 7 and transmission axial restraint.The gap be transmitted between axle 6 penetration site and power transmission shaft 6, gear-box 8 upper and lower end face uses gear sealing ring 9 to seal.In addition, coring bit drive unit also comprises the flexible shaft protecting 10 be enclosed within outside flexible axle 1, for the protection of flexible axle 1.
When coring bit drive unit works, direct current generator drives flexible axle 1 to rotate, flexible axle 1 passes motion to little gear with curved teeth 5, little gear with curved teeth 5 is rotated, thus drive the large gear with curved teeth 4 be meshed with little gear with curved teeth 5, large gear with curved teeth 4 rotates, and makes coring bit 3 rotate beginning core work by power transmission shaft 6.Transmission continuously and stably when two size gears with curved teeth ensure that coring bit axial-rotation and reduce the rotating speed produced from direct current generator, and add moment of torsion.
The design adopts direct current generator, compact conformation, facilitates installing/dismounting, and adopts soft axle transmission, and transmission efficiency is high, and it is high to get core effective efficiency, and it is relatively high to get core success rate, and two size gears with curved teeth also ensure that transmission continuously and stably.
Although the embodiment that the utility model discloses as above, the embodiment that its content just adopts for the ease of understanding the technical solution of the utility model, is not intended to limit the utility model.Technician in any the utility model art; under the prerequisite not departing from the core technology scheme that the utility model discloses; any amendment and change can be made in the form implemented and details; but the protection domain that the utility model limits, the scope that still must limit with appending claims is as the criterion.
Claims (4)
1. a coring bit drive unit, comprises coring bit, direct current generator and flexible axle, it is characterized in that, also comprise gear mechanism,
Described direct current generator is by described flexible axle by power transmission extremely described gear mechanism, and described gear mechanism drives described coring bit to rotate.
2. coring bit drive unit as claimed in claim 1, it is characterized in that, described gear mechanism comprises large gear with curved teeth, little gear with curved teeth and power transmission shaft,
Described large gear with curved teeth is engaged with described little gear with curved teeth, and described little gear with curved teeth is connected with described flexible axle, and described large gear with curved teeth is set on described power transmission shaft, and fixing, and described end part of driving shaft and described coring bit are fixed.
3. coring bit drive unit as claimed in claim 2, it is characterized in that, described gear mechanism also comprises gear-box, and described gearbox cover fills described large gear with curved teeth and little gear with curved teeth, and is connected being formed with described power transmission shaft near described power transmission shaft end positions by bearing.
4. coring bit drive unit as claimed in claim 3, it is characterized in that, described power transmission shaft runs through described gear-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081115.8U CN204436303U (en) | 2015-02-04 | 2015-02-04 | A kind of coring bit drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081115.8U CN204436303U (en) | 2015-02-04 | 2015-02-04 | A kind of coring bit drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436303U true CN204436303U (en) | 2015-07-01 |
Family
ID=53604181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081115.8U Active CN204436303U (en) | 2015-02-04 | 2015-02-04 | A kind of coring bit drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436303U (en) |
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2015
- 2015-02-04 CN CN201520081115.8U patent/CN204436303U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |