CN201963191U - Anti-dropping screw rod drilling tool - Google Patents
Anti-dropping screw rod drilling tool Download PDFInfo
- Publication number
- CN201963191U CN201963191U CN2011200313741U CN201120031374U CN201963191U CN 201963191 U CN201963191 U CN 201963191U CN 2011200313741 U CN2011200313741 U CN 2011200313741U CN 201120031374 U CN201120031374 U CN 201120031374U CN 201963191 U CN201963191 U CN 201963191U
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- China
- Prior art keywords
- lost
- dropping
- axle
- gasket
- packing ring
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- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an anti-dropping screw rod drilling tool, which belongs to petroleum drilling and extracting machinery and comprises a casing, an anti-dropping shaft, an anti-dropping screw nut, a stator and a rotor, wherein the bottom end of the anti-dropping shaft is connected with the rotor through screw threads, the top end of the anti-dropping shaft is connected with the anti-dropping screw nut through screw threads, an anti-dropping step is fixedly arranged in the casing and is positioned under the anti-dropping screw nut, an anti-dropping gasket is arranged on the anti-dropping shaft, the bottom end of the anti-dropping gasket is positioned through a step arranged on the anti-dropping shaft, the top end of the anti-dropping gasket is tightly pressed and positioned through the anti-dropping screw nut, in addition, an inner hole of the anti-dropping gasket is a prismatic hole, and the anti-dropping shaft is made to present a prismatic shape to be matched with the inner hole of the anti-dropping gasket. When the drilling tool falls into a well, the anti-dropping gasket is blocked on the anti-dropping step arranged in the drilling tool, the anti-dropping effect is realized, simultaneously, because the anti-dropping gasket and the anti-dropping shaft are connected through a prismatic polyhedral shape, the anti-dropping gasket can not rotate even when receiving the effect of the friction force of the anti-dropping step, and the anti-dropping effect is reliable.
Description
Technical field
The utility model relates to the oil drilling and r eoovery machine field, specifically is a kind of anti-lost helicoid hydraulic motor.
Background technology
Helicoid hydraulic motor is a mud motor in the drillng operation, mainly is made up of parts such as bypass valve, anti-lost assembly, anti-lost top connection, motor assembly, universal drive shaft assembly and driving-shaft assemblies.Because geological conditions and human factor, usually can cause down hole problem and accident, make the helicoid hydraulic motor well that falls, cause economic loss, wherein falling-proof apparatus is to prevent that helicoid hydraulic motor from falling the effective anti-lost casing device of well.
At present, on helicoid hydraulic motor, design various anti-lost housing falling-proof apparatus, mainly contained following two kinds: whole falling-proof apparatus and split falling-proof apparatus.
Whole falling-proof apparatus: as shown in Figure 1, anti-lost axle is a monolithic, and its pluses and minuses are as follows:
Advantage:
Can not separate (under the condition that guarantees design strength) with thin rod part, make anti-lost inefficacy because of the major part on the anti-lost axle.
Shortcoming:
1, anti-lost axle plays the major part of anti-lost effect and the thin bar of an interconnect function, the processing cost height, and stock utilization is low;
2, because of assembling needs, anti-lost axle is longer, and dynamic moment of inertia is big;
3, easily loosening, the dropout of the connecting thread between anti-lost axle and the rotor was lost efficacy falling-proof apparatus.Because during dismounting maintenance drilling tool, can not carry out the preheating dismounting to anti-lost axle and rotor junction, (damage stator) is so anti-lost axle and rotor screw thread can not be coated with anaerobic adhesive.Rotor is done planetary motion, is contained in epitrochanterian anti-lost axle owing to dynamic moment of inertia, the constantly swing of anti-lost axle, and the connecting thread between anti-lost axle and the rotor easily becomes flexible, and anti-lost axle and rotor are threaded off, and falling-proof apparatus was lost efficacy.
The split falling-proof apparatus: as shown in Figure 2, anti-lost axle and anti-lost nut are two bodies, by being threaded to one.Its pluses and minuses are as follows:
Advantage:
1, anti-lost nut and anti-lost axle separately reduce processing cost and improve stock utilization;
2, anti-lost axle can be pre-installed on the rotor, saves assembly space, and the anti-lost axle of anti-lost axial ratio monolithic is short, the dynamic moment of inertia when having reduced by anti-lost swing;
3, anti-lost axle can separate with anti-lost nut, is pre-installed on the rotor, so can be coated with anaerobic adhesive at connection of thread, avoids thread looseness.
Shortcoming:
Screw thread is easily loosening between anti-lost nut and the anti-lost axle, makes anti-lost inefficacy.Since between anti-lost nut and the anti-lost axle with being threaded, when having an accident, when drilling tool falls well, anti-lost nut is fallen on the step of setting up defences in the drilling tool, because the rotation of rotor is contained in epitrochanterian anti-lost axle and anti-lost nut also in continuous rotation, produce friction between anti-lost nut and the anti-lost step, this friction makes the thread looseness between anti-lost nut and the anti-lost axle, makes anti-lost nut and anti-lost axle unclamp anti-lost inefficacy.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of anti-lost helicoid hydraulic motor, is difficult for loosening, anti-lost more reliable between its anti-lost nut and the anti-lost axle.
For addressing the above problem, the utility model by the following technical solutions: this anti-lost helicoid hydraulic motor comprises anti-lost housing, anti-lost axle, anti-lost nut, stator, rotor; The bottom of described anti-lost axle is threaded with described rotor, and anti-lost axle top is connected with described anti-lost nut thread; Set firmly an anti-lost step in the described anti-lost housing, this anti-lost step is positioned at the below of described anti-lost nut, described anti-lost axle is provided with anti-lost packing ring, and the bottom of described anti-lost packing ring is by being arranged on the step location on the anti-lost axle, and the top of anti-lost packing ring compresses the location by anti-lost nut; And the endoporus of described anti-lost packing ring is the prism-shaped hole, and described anti-lost axle is made as the prism-shaped that cooperates with the endoporus of anti-lost packing ring.
As further technical scheme of the present utility model:
In this anti-lost helicoid hydraulic motor, the endoporus of described anti-lost packing ring is hexa-prism or eight prism-shaped.
In this anti-lost helicoid hydraulic motor, between described anti-lost step and the described anti-lost housing for being threaded.
The beneficial effects of the utility model are: the anti-lost packing ring that is provided with in this helicoid hydraulic motor is contained on the anti-lost axle, anti-lost packing ring is connected by prism-shaped is polyhedron-shaped with anti-lost axle, both made anti-lost packing ring be subjected to the effect of anti-lost step frictional force, can not rotate yet, be equivalent to and anti-lost axle one, overcome anti-lost nut because of the loosening shortcoming of the effect that is subjected to external force, advantage with whole anti-lost axle, inherited simultaneously the advantage that short, the anti-lost axle of the anti-lost axle of split type falling-proof apparatus and rotor junction can gluings again, made the falling-proof apparatus practicality; When drilling tool fell well, anti-lost packing ring was blocked by the step of setting up defences in the drilling tool, thereby played anti-lost effect, further guaranteed anti-lost more reliable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is the structural representation that the helicoid hydraulic motor of whole falling-proof apparatus is set in the prior art,
Fig. 2 is the structural representation that the helicoid hydraulic motor of split falling-proof apparatus is set in the prior art,
Fig. 3 is a structural representation of the present utility model,
Fig. 4 is the A-A view of Fig. 3,
Among the figure: 1 anti-lost housing, 2 anti-lost axles, 3 anti-lost steps, 4 rotors, 5 stators, 6 anti-lost nuts, 7 anti-lost packing rings.
The specific embodiment
As shown in Figure 3, this anti-lost helicoid hydraulic motor mainly comprises anti-lost housing 1, anti-lost axle 2, anti-lost nut 6, stator 5, rotor 4.
Parts such as anti-lost housing 1 two ends are connecting threads, and the bottom is used for jointed rod, bore very, the top links to each other with motor.Be provided with anti-lost step 3 in the anti-lost housing 1, these anti-lost step 3 usefulness are threaded in the anti-lost housing 1.Anti-lost in addition step also can be that directly processing is on anti-lost housing.Anti-lost step 3 mainly works to accept anti-lost nut 2 when helicoid hydraulic motor falls well.
When accident occurring is that drilling tool is when falling well, the downhole tool that is connected with rotor 4 is because the effect of gravity, can fall downwards, be connected on the rotor 4 anti-lost axle 2 and on anti-lost nut 6, anti-lost packing ring 7 also can be to the whereabouts, because the effect of the anti-lost step 3 on the anti-lost housing 1, anti-lost packing ring 7 leans against on the anti-lost step 3, stops the drilling tool well that falls.
At this moment, if motor works on, the anti-lost packing ring 7 that leans against on the anti-lost step 3 can be done planetary motion with motor by anti-lost 2, and anti-lost packing ring 7 is subjected to the effect from anti-lost step 3 frictional force, and the trend of rotation is arranged.But because the circumferential positioning action that prism-shaped cooperates between anti-lost packing ring 7 and the anti-lost axle 2 will stop anti-lost packing ring 7 to rotate.
Be fastened on the anti-lost nut 6 of anti-lost packing ring 7 one ends because end face is not subjected to the influence of frictional force, anti-lost nut 6 is fastened on the anti-lost axle 2 and can become flexible, and anti-lost packing ring 7 is fastened, and makes anti-lost more reliable performance.
As other embodiment: the anti-lost helicoid hydraulic motor of this kind, the endoporus of anti-lost packing ring and anti-lost axle also can be hexa-prism or other polygonal prism column.
The same prior art of all the other technology.
Claims (3)
1. an anti-lost helicoid hydraulic motor comprises anti-lost housing, anti-lost axle, anti-lost nut, stator, rotor; The bottom of described anti-lost axle is threaded with described rotor, and anti-lost axle top is connected with described anti-lost nut thread; Set firmly an anti-lost step in the described anti-lost housing, this anti-lost step is positioned at the below of described anti-lost nut, it is characterized in that: described anti-lost axle is provided with anti-lost packing ring, the bottom of described anti-lost packing ring is by being arranged on the step location on the anti-lost axle, and the top of anti-lost packing ring compresses the location by anti-lost nut; And the endoporus of described anti-lost packing ring is the prism-shaped hole, and described anti-lost axle is made as the prism-shaped that cooperates with the endoporus of anti-lost packing ring.
2. a kind of anti-lost helicoid hydraulic motor according to claim 1 is characterized in that: the endoporus of described anti-lost packing ring is hexa-prism or eight prism-shaped.
3. a kind of anti-lost helicoid hydraulic motor according to claim 1 and 2 is characterized in that: between described anti-lost step and the described anti-lost housing for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313741U CN201963191U (en) | 2011-01-29 | 2011-01-29 | Anti-dropping screw rod drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313741U CN201963191U (en) | 2011-01-29 | 2011-01-29 | Anti-dropping screw rod drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963191U true CN201963191U (en) | 2011-09-07 |
Family
ID=44525726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200313741U Expired - Fee Related CN201963191U (en) | 2011-01-29 | 2011-01-29 | Anti-dropping screw rod drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184857A (en) * | 2011-12-29 | 2013-07-03 | 四川安东油气工程技术服务有限公司 | Anti-dropping device for high-pressure jet hose |
| CN107407134A (en) * | 2015-04-17 | 2017-11-28 | 哈利伯顿能源服务公司 | Coupling mechanism for drive shaft transmission component |
-
2011
- 2011-01-29 CN CN2011200313741U patent/CN201963191U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184857A (en) * | 2011-12-29 | 2013-07-03 | 四川安东油气工程技术服务有限公司 | Anti-dropping device for high-pressure jet hose |
| CN103184857B (en) * | 2011-12-29 | 2015-12-16 | 四川安东油气工程技术服务有限公司 | High-pressure injection flexible pipe falling-proof apparatus |
| CN107407134A (en) * | 2015-04-17 | 2017-11-28 | 哈利伯顿能源服务公司 | Coupling mechanism for drive shaft transmission component |
| CN110080691A (en) * | 2015-04-17 | 2019-08-02 | 哈利伯顿能源服务公司 | Coupling mechanism for drive shaft transmission component |
| US10760351B2 (en) | 2015-04-17 | 2020-09-01 | Halliburton Energy Services, Inc. | Coupling mechanism for driveshaft transmission assembly |
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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: 20110907 Termination date: 20170129 |