CN205387906U - Torsion impact dynamic instrument - Google Patents
Torsion impact dynamic instrument Download PDFInfo
- Publication number
- CN205387906U CN205387906U CN201620129174.2U CN201620129174U CN205387906U CN 205387906 U CN205387906 U CN 205387906U CN 201620129174 U CN201620129174 U CN 201620129174U CN 205387906 U CN205387906 U CN 205387906U
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- China
- Prior art keywords
- casing
- mandrel
- rotating shaft
- drill bit
- ring
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Abstract
The utility model relates to a torsion impact dynamic instrument, including last casing, lower casing, pivot, dabber, its characterized in that: going up casing and casing down, to pass through threaded connection fixed, and the epitheca is internal to be equipped with the pivot, be equipped with the support ring between pivot and the last casing upper end, support ring and last casing threaded connection, the inside cavity of pivot supplies the drilling fluid circulation, is equipped with the by pass port in the pivot that closes on the support ring lower part, is in the pivot of going up the by pass port lower part is equipped with the helical shape slot, the internal dabber and pivot threaded connection of inferior valve, the dabber is hollow structure, and the dabber upper end is equipped with down the by pass port, and the outside of dabber sets up top -down and is provided with the boss and descends the boss, be equipped with the spacing ring in the U type mouth between dabber upper end, last boss and the lower casing upper end, the spacing ring is with casing threaded connection is fixed down, casing lower extreme inboard is provided with the internal thread down, be equipped with the shelves ring down between casing and the dabber lower extreme, the shelves ring is with casing threaded connection is fixed down, be equipped with the spring between the lower boss of dabber and the shelves ring. The utility model discloses a torsion impact dynamic instrument can provide stable weight on bit and moment of torsion for the drill bit, makes the stratum reduce the impact of drill bit, the protection drill bit, and extension bit life makes the drill bit increase at the operational use time in shaft bottom, promotes well drilling efficiency comprehensively.
Description
Technical field
This utility model relates to the speed-raising instrument used in drilling engineering, specifically to a kind of torsion impact power tool.
Background technology
Oil, natural gas resource exploration and development drilling engineering in, drilling rod is very long, and well is curve, flexibility is very big, and the friction between drilling rod and the borehole wall is very big, and drilling rod is added in the pressure of the drill on drill bit and reduces, especially high angle hole and horizontal well, backing pressure phenomenon is very serious, seriously constrains bit speed.Between drill bit and drilling rod is be rigidly connected, stratum heterogeneity, when drill bit is subject to impulsive force improper from stratum, it is easy to causes PDC drill bit cutting tooth premature breakdown, causes that drill bit lost efficacy, reduce bit speed, increase drilling cost.
On the other hand, when PDC drill bit cutting tooth wedging stratum is excessively deep, or because the shearing strength on stratum is excessive, the helicoid hydraulic motor that conventional drilling uses is not enough to provide enough torsion to make PDC drill bit obtain due moment of torsion, and therefore PDC drill bit can not shear the broken rock of bottom rock.Now, PDC drill bit is in halted state, and drill string is rotated further and twists, and when the potential energy that drill string reverses generation is sufficiently large, PDC drill bit shears suddenly the broken rock of rock.The torsional-energy of drill string discharges suddenly, and drill string is promptly turned back to original form, consequently, it is possible to drive bit convolution.After drill string torsional-energy has discharged, the torsion that PDC drill bit obtains is not enough to again overcome the shearing strength on stratum to be in halted state.Going round and beginning again, the time that PDC drill bit effectively works is shorter, seriously constrains the lifting of drilling efficiency.
Utility model content
For the disadvantages mentioned above existed in prior art; the purpose of this utility model is to provide a kind of torsion impact power tool; this device can provide stable the pressure of the drill and moment of torsion to drill bit; make stratum that the impact of drill bit to be reduced; protection composite sheet of drilling bit; extend bit life, make drill bit increase in the effective time in shaft bottom, General Promotion drilling efficiency.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of torsion impact power tool, including upper shell, lower house, rotating shaft, mandrel, it is characterized in that: described upper shell and lower house are threaded connection fixing, rotating shaft it is provided with in upper shell, being provided with a pushing out ring between described rotating shaft and upper shell upper end, described pushing out ring is threadeded with upper shell, and described rotating shaft inner hollow is for drilling fluid circulation, being in the rotating shaft closing on a pushing out ring bottom and be provided with by-pass prot, the rotating shaft being in described upper by-pass prot bottom is provided with spiral groove；Mandrel in described lower house is connected with shaft thread, described mandrel is hollow structure, mandrel upper end is provided with lower by-pass prot, the arranged outside of mandrel is provided with convex platform and lower convex platform from top to bottom, being provided with spacing ring in U-shaped mouth between described mandrel upper end, convex platform and lower house upper end, described spacing ring is threadeded fixing with upper shell；Being provided with a grade ring between described lower house and mandrel lower end, described shelves ring is threadeded fixing with lower house；It is equipped with spring between lower convex platform and the shelves ring of described mandrel.
In technique scheme, the drilling fluid hollow endoporus by described rotating shaft, part drilling fluid enters between rotating shaft outer wall and upper enclosure inner wall by the by-pass prot in rotating shaft, flows through the spiral groove in rotating shaft at a high speed, promoting axis of rotation, the rotation band moving mandrel of rotating shaft rotates.Drilling fluid enters mandrel inner hollow hole by the by-pass prot being on mandrel.
The top of described rotating shaft arranges external screw thread, and this external screw thread is used for connecting drill string, and the torsion impact power tool that drill string relates to this utility model transmits the pressure of the drill and moment of torsion.The bottom of described shell is provided with tapered female thread, and this female thread is used for connecting drill bit, and the pressure of the drill and moment of torsion are passed to drill bit.
Described spring is compression spring.When drill bit drilling strata variation of lithological, entering hard formation from soft formation, drill bit rate of penetration reduces, and the lower house connecting drill bit, relative to rotating shaft and mandrel, motion upwards occurs, and spring is compressed.Spring is reduced the stratum impact to drill bit by compression process punching.Drill bit enters soft formation from hard formation, and drill bit rate of penetration increases, and the lower house connecting drill bit, relative to rotating shaft and mandrel, downward motion occurs, and spring resets gradually, can reduce the stratum impact to drill bit equally.The actual effect playing damping of described compression spring, it is possible to protect drill bit preferably, from the impact of formation variation, extends the service life of drill bit.
Described spring is torque spring.Cutter wedging stratum is excessively deep, or because the shearing strength on stratum is excessive, and drill string is supplied to the moment of torsion of drill bit and is not enough to overcome the shearing strength on stratum, it is impossible to make drill bit shearing-crushing rock.Rotating shaft and mandrel rotate, and the shell being connected with drill bit stops, and torque spring is twisted storing torsional-energy.When the torsional-energy of torque spring is sufficiently large, rock is by drill bit shearing-crushing.Owing to the torsional-energy of torque spring discharges gradually, torque spring resets gradually, it is possible to prevent drill string from driving drill bit generation circumnutation.When the torsional-energy of torque spring and the shearing strength on stratum reach to balance, drill bit is just at being constantly in the state of shearing-crushing rock, so that drill bit efficiency of breaking rock improves.
As preferably, described spring is the cluster spring of compression spring and torque spring.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
1. torsion impact power tool of the present utility model uses rotating shaft to provide rotating speed for shaft bottom drill bit, makes drill bit efficiency of breaking rock improve.
2. torsion impact power tool of the present utility model have employed compression spring, and drill bit is played cushioning effect, it is possible to effectively protects drill bit, extends drilling life of bit.
3. torsion impact power tool of the present utility model have employed torque spring, it is possible to prevents drill string convolution from rotating, and protects drill string, and makes drill bit be constantly in the state of shearing-crushing rock, improves drilling efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment of the present utility model, this utility model is further described.
Fig. 1 is the structural representation of this utility model torsion impact power tool.
Labelling in figure: 1-upper shell, 2-lower house, 3-rotating shaft, 4-mandrel, 5-prop up pushing out ring, 6-spacing ring, 7-shelves ring, 8-spring；By-pass prot under the upper by-pass prot of 301-, 302-spiral groove, 401-, 402-convex platform, 403-lower convex platform.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
The basic structure representing this utility model torsion impact power tool of Fig. 1 signal, it includes upper shell 1, lower house 2, rotating shaft 3, mandrel 4, it is characterized in that: described upper shell 1 and lower house 2 are threaded connection fixing, rotating shaft 3 it is provided with in upper shell 1, a pushing out ring 5 it is provided with between described rotating shaft 3 and upper shell 1 upper end, described pushing out ring 5 is threadeded with upper shell 1, described rotating shaft 3 inner hollow is for drilling fluid circulation, it is in the rotating shaft 3 closing on pushing out ring 5 bottom and is provided with by-pass prot 301, the rotating shaft 1 being in described upper by-pass prot 301 bottom is provided with spiral groove 302；Mandrel 4 in described lower house 2 is connected with shaft thread, described mandrel 4 is hollow structure, mandrel 4 upper end is provided with lower by-pass prot 401, the arranged outside of mandrel 4 is provided with convex platform 402 and lower convex platform 403 from top to bottom, being provided with spacing ring 6 in U-shaped mouth between described mandrel 4 upper end, convex platform 402 and lower house 2 upper end, described spacing ring 6 is threadeded fixing with lower house 2；Described lower house 2 lower end inside is provided with female thread, is provided with grade ring 7 between described lower house 2 and mandrel 4 lower end, and described shelves ring 7 is threadeded fixing with lower house 2；It is equipped with spring 8 between lower convex platform 403 and the shelves ring 7 of described mandrel 4.
The top of described rotating shaft 3 arranges external screw thread, and this external screw thread is used for connecting drill string, and the torsion impact power tool that drill string relates to this utility model transmits the pressure of the drill and moment of torsion.The drilling fluid in the drill string hollow endoporus by rotating shaft 3, part drilling fluid enters between rotating shaft 3 outer wall and upper shell 1 inwall by the by-pass prot 301 in rotating shaft, flowing through at a high speed the spiral groove 302 in rotating shaft 3, promote rotating shaft 3 to rotate, the rotation band moving mandrel 4 of rotating shaft 3 rotates.Drilling fluid enters mandrel 4 inner hollow hole by the by-pass prot 401 being on mandrel 4.
The bottom of described lower house 2 is provided with tapered female thread, and this female thread is used for connecting drill bit, and the pressure of the drill and moment of torsion are passed to drill bit.
When spring 8 is compression spring.Drill bit enters hard formation from soft formation, and drill bit rate of penetration reduces, and the lower house 2 connecting drill bit, relative to the rotating shaft 3 and mandrel 4 connecting drill string, motion upwards occurs, and spring 8 is compressed.Drill bit enters soft formation from hard formation, and drill bit rate of penetration increases, and the lower house 2 connecting drill bit, relative to the rotating shaft 3 and mandrel 4 connecting drill string, downward motion occurs, and spring resets gradually.Therefore the actual effect playing damping of compression spring, makes the pressure of the drill more stable, it is possible to protect drill bit preferably, extends the service life of drill bit.
When spring 5 is torque spring.The potential energy that the moment of torsion of drill bit shearing-crushing rock is twisted storing by torque spring provides, and its torsional-energy can reach balance with the shearing strength on stratum, makes drill bit be constantly in duty, improves drilling efficiency.
As preferably, spring 5 is the cluster spring of compression spring and torque spring, makes the pressure of the drill that drill bit obtains and moment of torsion more stable, reaches extend bit life and improve the effect of drilling efficiency.
Those of ordinary skill in the art will be appreciated that, above embodiments is intended merely to explanation this utility model, and it is not used as to restriction of the present utility model, as long as in spirit of the present utility model, the change of embodiment described above, modification all will be dropped in Claims scope of the present utility model.
Claims (6)
1. a torsion impact power tool, including upper shell, lower house, rotating shaft, mandrel, it is characterized in that: described upper shell and lower house are threaded connection fixing, rotating shaft it is provided with in upper shell, being provided with a pushing out ring between described rotating shaft and upper shell upper end, described pushing out ring is threadeded with upper shell, and described rotating shaft inner hollow is for drilling fluid circulation, being in the rotating shaft closing on a pushing out ring bottom and be provided with by-pass prot, the rotating shaft being in described upper by-pass prot bottom is provided with spiral groove；Mandrel in described lower house is connected with shaft thread, described mandrel is hollow structure, mandrel upper end is provided with lower by-pass prot, the arranged outside of mandrel is provided with convex platform and lower convex platform from top to bottom, being provided with spacing ring in U-shaped mouth between described mandrel upper end, convex platform and lower house upper end, described spacing ring is threadeded fixing with lower house；Described lower house lower end inside is provided with female thread, is provided with a grade ring between described lower house and mandrel lower end, and described shelves ring is threadeded fixing with lower house；It is equipped with spring between lower convex platform and the shelves ring of described mandrel.
2. a kind of torsion impact power tool according to claim 1, it is characterised in that: the top of described rotating shaft arranges external screw thread.
3. a kind of torsion impact power tool according to claim 1, it is characterised in that: the bottom of described lower house is provided with tapered female thread.
4. a kind of torsion impact power tool according to claim 1, it is characterised in that: described spring is compression spring.
5. a kind of torsion impact power tool according to claim 1, it is characterised in that: described spring is torque spring.
6. a kind of torsion impact power tool according to claim 1, it is characterised in that: described spring is the cluster spring of compression spring and torque spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620129174.2U CN205387906U (en) | 2016-02-19 | 2016-02-19 | Torsion impact dynamic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620129174.2U CN205387906U (en) | 2016-02-19 | 2016-02-19 | Torsion impact dynamic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205387906U true CN205387906U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620129174.2U Expired - Fee Related CN205387906U (en) | 2016-02-19 | 2016-02-19 | Torsion impact dynamic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205387906U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764841A (en) * | 2019-04-02 | 2020-10-13 | 陈晓新 | Novel horizontal torsional elastic force buffering cutting rock breaking drilling tool |
| CN112096309A (en) * | 2019-06-18 | 2020-12-18 | 中国石油化工股份有限公司 | Shock isolation device for well drilling |
-
2016
- 2016-02-19 CN CN201620129174.2U patent/CN205387906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764841A (en) * | 2019-04-02 | 2020-10-13 | 陈晓新 | Novel horizontal torsional elastic force buffering cutting rock breaking drilling tool |
| CN112096309A (en) * | 2019-06-18 | 2020-12-18 | 中国石油化工股份有限公司 | Shock isolation device for well drilling |
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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 |
Granted publication date: 20160720 Termination date: 20200219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |