CN201679444U - Low torque reamer - Google Patents
Low torque reamer Download PDFInfo
- Publication number
- CN201679444U CN201679444U CN2009200982264U CN200920098226U CN201679444U CN 201679444 U CN201679444 U CN 201679444U CN 2009200982264 U CN2009200982264 U CN 2009200982264U CN 200920098226 U CN200920098226 U CN 200920098226U CN 201679444 U CN201679444 U CN 201679444U
- Authority
- CN
- China
- Prior art keywords
- gear wheel
- reamer
- torsion
- low moment
- tooth
- 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
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Abstract
The utility model relates to a reamer, especially to a low torque reamer applied to trenchless horizontal directional well drilling, petroleum and mines drilling as well as geological drillings, comprising mainly a body, an installation seat for a gear wheel and a gear wheel. The gear wheel is connected with the body of the reamer through a screw thread of the installation seat; the gear wheel further comprises an outer sleeve, an inner sleeve, a bearing rolling object as well as two seal rings at both ends; the outer sleeve and the inner sleeve are locked via the bearing rolling object and the surface of the gear wheel is toothed; divided into 2-5 rows according to the diameter of the bearing rolling object, the bearing rolling object is also equipped with a device to protect it from falling off. One beneficial effect of the utility model lies in that the body of a reamer can be used for a plurality of times, therefore, reducing costs and with better protective effect, the reamer has a longer service lifetime and renders more reliable performances.
Description
Technical field
The utility model relates to non-excavation horizontal directional drilling, oil, mine and geological drilling reamer, particularly a kind of low moment of torsion reamer.
Technical background
Present non-excavation horizontal directional drilling, oil, mine and geological drilling reamer, after generally being to use the gear wheel and bit leg assembling of tricone bit, according to different reaming hole diameters, after selecting the gear wheel and bit leg assembling of different size for use, be welded on the body, gear wheel can not be changed, and one of them gear wheel must cut down whole palm of roller bits after losing efficacy from body, again assembly welding one overlaps palm of roller bits then, finishes relatively difficulty of replacing in the working site.Because the palm of roller bits quantity of assembly welding is more, the bit leg palm back of the body is big with the contact area of the borehole wall, and the friction torque of the reamer and the borehole wall is big, and needs to consume the bigger power of rig.
Summary of the invention
The utility model is exactly in order to solve above-mentioned deficiency of the prior art, and provide that a kind of non-excavation horizontal orientation creeps into, oil, mine and geological drilling reamer, a body can repeatedly use, reduce cost, have better guarantor footpath effect, the life-span is long, uses reliable.
In order to achieve the above object, the technical solution of the utility model is: low moment of torsion reamer, form by body, gear wheel mount pad, gear wheel, it is characterized in that: described gear wheel is threadedly connected on the body by the gear wheel mount pad, gear wheel is made up of the sealing ring at cover, bearing roller and two ends in gear wheel overcoat, the gear wheel, cover is by spherical rolling element locking in gear wheel overcoat and the gear wheel, there is tooth on the gear wheel surface, the columns of bearing roller can be the 2-5 row according to the gear wheel diameter, and anti-drop device is installed.
The flute profile of above-mentioned gear wheel surface tooth can be an insert cone, also can be the mill teeth gear wheel.
The angle of the above-mentioned gear wheel mount pad axis of thread and body axis is the 65-75 degree.
Above-mentioned sealing device can be the caoutchouc elasticity sealing, also can be metal floating seal (injecting the grease lubrication cooling bearing in bearing).
The angle of the above-mentioned gear wheel back cone and the borehole wall is the 15-25 degree.
Built-up welding has wearing layer or carbide inserts tooth or the hard rock tooth that is inlaid with gold on the above-mentioned gear wheel back cone.
Inserted on the above-mentioned back cone can be a row or multi-row; The inserted back cone matrix 0.5-1.2mm that is higher than on the back cone.
The beneficial effects of the utility model: compare 1 with the reamer of present use: gear wheel can be changed, and a body can repeatedly use, and reduces cost; 2: the gear wheel that same body is joined different size can obtain different counter bore diameters; 3: have the moment of torsion lower than conventional reamer; 4: have better guarantor footpath effect; 5: the life-span is long, uses reliable.
Description of drawings
Fig. 1 is this practical new structural representation
Fig. 2 is the structural representation of gear wheel
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, low moment of torsion reamer is made up of body (1), gear wheel (2), gear wheel mount pad (3) and other Holder Fasteners.Gear wheel (2) is connected on the gear wheel mount pad (3) by the screw thread (4) on the gear wheel mount pad (3), and gear wheel (2) can be around the axis rotation of mount pad screw thread (4).Body (1) two ends have screw thread (5) to be connected (not shown) with drilling tool, body (1) center mud runner (6), and the mud that pumps into by ground cleans well and cooling gear wheel (2).Body (1) rotates around gear wheel mount pad screw thread (4) axis around own axis rotation and drive gear wheel (2) under the driving of ground power, and fractured rock forms well.Has the anti-drop device (7) that prevents that gear wheel (2) from coming off on the gear wheel (2).Established angle A between gear wheel (2) and body (1) is 70 degree.
As shown in Figure 2, gear wheel (2) by cover (9), bearing roller (10) in the gear wheel overcoat (8), gear wheel, and sealed at both ends circle (12) form.The pressure of the drill in the drilling process is mainly born in bearing roller (10), (16), (17), has different rolling element columns and number according to the gear wheel (2) of different size, is generally the 2-5 row.Spherical rolling element (11) limits cover (9) and gear wheel overcoat (8) locking in the gear wheel to interior cover (9) and overcoat (8) axial motion.
Gear wheel (2) is the cone that there is tooth on a surface, at different formation characteristics gear wheels two kinds of flute profiles (13) are arranged, a kind of is to be drilled with many holes on the overcoat (8) at gear wheel, hard-metal insert is pressed in the hole, with the tooth of alloy gold tooth as fractured rock, be called insert cone, be adapted to bore harder lithosphere; Another kind is to process profile of tooth with machining process on gear wheel (2) cone, and the surface overlaying Hardmetal materials at tooth is called mill teeth gear wheel or steel-tooth cone, is adapted to bore softer argillic horizon.
Gear wheel overcoat (8) back cone studs with tack carbide button (14), and the flank of tooth exposes back cone matrix 1-2mm, helps keeping the gear wheel diameter.Seal by sealing ring (12) between the cover (9) in gear wheel overcoat (8) and the gear wheel, in gear wheel overcoat (8) and gear wheel, inject lubricating grease in cover (9) bearing clearance and come the cooling and lubricating bearing.Gear wheel is connected with body (1) by the screw thread (15) of cover (9) in the gear wheel.
The above only executes example for one of the present utility model, and unrestricted protection domain of the present utility model.
Claims (6)
1. low moment of torsion reamer, form by body, gear wheel mount pad, gear wheel, it is characterized in that: described gear wheel is threadedly connected on the body by the gear wheel mount pad, gear wheel is made up of the sealing ring at cover, bearing roller and two ends in gear wheel overcoat, the gear wheel, cover is by spherical rolling element locking in gear wheel overcoat and the gear wheel, there is tooth on the gear wheel surface, and the columns of bearing roller can be the 2-5 row according to the gear wheel diameter, and anti-drop device is installed.
2. low moment of torsion reamer according to claim 1 is characterized in that: the flute profile of described gear wheel surface tooth is an insert cone, or the mill teeth gear wheel.
3. low moment of torsion reamer according to claim 1 is characterized in that: the angle of the described gear wheel mount pad axis of thread and body axis is the 65-75 degree.
4. low moment of torsion reamer according to claim 1 is characterized in that: described sealing device is the caoutchouc elasticity sealing, or the metal floating seal.
5. low moment of torsion reamer according to claim 1 is characterized in that: the angle of the described gear wheel back cone and the borehole wall is the 15-25 degree.
6. low moment of torsion reamer according to claim 1 is characterized in that: built-up welding has wearing layer or carbide inserts tooth or the hard rock tooth that is inlaid with gold on the described gear wheel back cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200982264U CN201679444U (en) | 2009-08-05 | 2009-08-05 | Low torque reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200982264U CN201679444U (en) | 2009-08-05 | 2009-08-05 | Low torque reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679444U true CN201679444U (en) | 2010-12-22 |
Family
ID=43344492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200982264U Expired - Fee Related CN201679444U (en) | 2009-08-05 | 2009-08-05 | Low torque reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679444U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437711A (en) * | 2013-09-10 | 2013-12-11 | 朱卫江 | Reamer |
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
| CN110748298A (en) * | 2019-11-15 | 2020-02-04 | 四川石油天然气建设工程有限责任公司 | Reamer with self-righting guide function |
| CN111594052A (en) * | 2020-06-08 | 2020-08-28 | 中云恒通科技发展(北京)有限公司 | Non-excavation hole expanding machine, hole expanding drill bit and hole expanding method thereof |
-
2009
- 2009-08-05 CN CN2009200982264U patent/CN201679444U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437711A (en) * | 2013-09-10 | 2013-12-11 | 朱卫江 | Reamer |
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
| CN110748298A (en) * | 2019-11-15 | 2020-02-04 | 四川石油天然气建设工程有限责任公司 | Reamer with self-righting guide function |
| CN110748298B (en) * | 2019-11-15 | 2022-03-18 | 四川石油天然气建设工程有限责任公司 | Reamer with self-righting guide function |
| CN111594052A (en) * | 2020-06-08 | 2020-08-28 | 中云恒通科技发展(北京)有限公司 | Non-excavation hole expanding machine, hole expanding drill bit and hole expanding method thereof |
| CN111594052B (en) * | 2020-06-08 | 2022-03-08 | 中云恒通科技发展(北京)有限公司 | Non-excavation hole expanding machine, hole expanding drill bit and hole expanding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20101222 Termination date: 20160805 |