CN110056309A - System of Rotating about Fixed Axis positive displacement power tool - Google Patents
System of Rotating about Fixed Axis positive displacement power tool Download PDFInfo
- Publication number
- CN110056309A CN110056309A CN201910386992.9A CN201910386992A CN110056309A CN 110056309 A CN110056309 A CN 110056309A CN 201910386992 A CN201910386992 A CN 201910386992A CN 110056309 A CN110056309 A CN 110056309A
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- China
- Prior art keywords
- capacity eccentric
- eccentric bearing
- inner sleeve
- outer rotor
- rotor
- 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.)
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 22
- 230000021615 conjugation Effects 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydraulic Motors (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention is System of Rotating about Fixed Axis positive displacement power tool, including outer cylinder, internal rotor, outer rotor, locating snap ring, stop ring set, hole card spring, TC bearing outside, upper TC bearing inner sleeve, lower TC bearing inner sleeve, capacity eccentric bearing inner sleeve, capacity eccentric bearing housing form；Drill string is terminated on outer cylinder；Internal rotor is mounted in outer rotor by helical tooth internal messing and is formed with outer rotor the conjugation closing chamber of at least one, and the continuous rotation of internal rotor can cause conjugation seal chamber continuously to prolong axial move down to guarantee that working media (drilling fluid) advances downwardly in proper order；Internal rotor upper and lower ends are equipped with capacity eccentric bearing, and capacity eccentric bearing is made of capacity eccentric bearing inner sleeve and capacity eccentric bearing housing, capacity eccentric bearing eccentricity be equal to the center of internal rotor and outer rotor away from；Outer rotor upper and lower part is equipped with TC bearing；The present invention can be used as well dynamic tool, and the internal rotor being installed in capacity eccentric bearing does fixed-axis rotation under the action of hydraulic and provides rotary power for downhole tool combination, eliminate the negative effect of centrifugal force bring.
Description
Technical field
The present invention relates to a kind of oil and gas industry drilling engineering technical field, especially a kind of well dynamic tool.
Background technique
Domestic and international application mainly has in oil/gas well mud motor at present: helicoid hydraulic motor, turbodrill, electrodrill
Deng.The research at home and abroad of all kinds of drilling tools and applicable cases are different, furthermore advantage possessed by all kinds of drilling tools and short
Plate is also not quite similar, and if helicoid hydraulic motor operation torque and pressure drop and structure are unrelated in relation to and with revolving speed, but has oscillation crosswise；Turbine
Though drilling tool has many advantages, such as the software feature of high speed large torque, and without oscillation crosswise, exports revolving speed is excessively high, package size is too long etc.
Disadvantage；The output revolving speed of electrodrill is higher, and structure is complicated for multi-stage speed reducer, poor reliability, the insulation of downhole electric machine and close
Sealing property requires high.In order to solve problem above, System of Rotating about Fixed Axis positive displacement power tool is proposed hereby, and retaining above-mentioned major part has
The defect of above-mentioned technology is solved while point.
Summary of the invention
The present invention provides System of Rotating about Fixed Axis positive displacement power tool, to solve present in well dynamic tool in the prior art
The problem of transverse vibration.
To solve the above-mentioned problems, according to an aspect of the present invention, the present invention provides System of Rotating about Fixed Axis positive displacement power
Tool, including outer cylinder (1), internal rotor (2), outer rotor (3), locating snap ring (4), stop ring set (5), hole card spring (6), TC bearing
Housing (7), upper TC bearing inner sleeve (8), lower TC bearing inner sleeve (9), capacity eccentric bearing inner sleeve (10), capacity eccentric bearing housing (11) group
At；Outer cylinder terminates drill string on (1)；Internal rotor (2) be mounted in outer rotor (3) by helical tooth internal messing and with outer rotor (3)
The conjugation closing chamber of at least one is formed to accommodate working media (drilling fluid), the continuous rotation of internal rotor can cause conjugation to seal
Chamber continuously prolongs axial move down to guarantee that working media (drilling fluid) advances downwardly in proper order；Internal rotor (2) upper and lower ends are equipped with bias
Bearing, capacity eccentric bearing are made of capacity eccentric bearing inner sleeve (10) and capacity eccentric bearing housing (11), and capacity eccentric bearing eccentricity is equal to interior turn
The center of sub (2) and outer rotor (3) away from；Outer rotor (3) upper and lower part is respectively equipped with TC bearing and lower TC bearing.
Further, outer cylinder (1) upper and lower part is provided with conical internal thread, outer cylinder (1) upper and lower part
Being equipped with inner cavity has jump-ring slot, has snap ring groove below the jump-ring slot of top, has snap ring groove above the jump-ring slot of lower part, in locating snap ring
Have to match with the small boss of locating snap ring (4) side between slot and jump-ring slot and prevents the groove of capacity eccentric bearing housing (11) rotation.
Further, internal rotor (2) upper and lower part is equipped with centre bore, and internal rotor (2) upper and lower part exists
Central hole is equipped at least one through flow hole；It is screw-rod structure among the internal rotor (2)；Internal rotor (2) upper end is set
There is interior hexagonal structure；Internal rotor (2) lower end is equipped with screw thread, and threaded upper portion is equipped with tapered surface.
Beneficial effect using above-mentioned further technical solution is: internal rotor (2) centre bore can be realized with through flow hole
To the water conservancy diversion of drilling fluid, threaded upper portion tapered surface can guarantee the concentricity with lower end connection, internal rotor (2) upper end
Internal rotor (2) are screwed in outer rotor (3) inside convenient for spanner by interior hexagonal structure.
Further, the outer rotor (3) is axis set type structure, be equipped with inside outer rotor (3) upper end positioning step and
Internal screw thread, lower end outside are equipped with positioning step and external screw thread；It is formed by injection process and is turned outside inside the outer rotor (3)
The screw rod curved-surface structure that sub (3) match.
Beneficial effect using above-mentioned further technical solution is: outer rotor (3) can be real in narrow radial space
The axially position and assembly TC bearing of existing upper and lower side, to guarantee the fixed-axis rotation of outer rotor (3)；Outer rotor (3) and internal rotor
(2) fixed-axis rotation of gear internal messing is done.
Further, described capacity eccentric bearing housing (11) one end sintering has a carbide ring, and the other end sets that there are two wide recessed
Slot；The through-hole with outer diameter bias is equipped in the middle part of the capacity eccentric bearing housing (11), sintering has hard alloy sleeve in through-hole；It is described
Capacity eccentric bearing housing (11) sintering has one end of carbide ring to be equipped with step；The capacity eccentric bearing housing (11) is equipped with several logical
Discharge orifice；The capacity eccentric bearing inner sleeve (10) is axis set type structure, and external sintering has hard alloy sleeve；The capacity eccentric bearing inner sleeve
(10) and capacity eccentric bearing housing (11) group becomes capacity eccentric bearing, and capacity eccentric bearing eccentricity is equal to internal rotor (2) and outer rotor (3)
Center away from.
Beneficial effect using above-mentioned further technical solution is: the hard alloy of capacity eccentric bearing housing (11) one end sintering
Ring is matched with the carbide ring that upper TC bearing inner sleeve (8) upper end is sintered and is played in outer rotor (3) rotation process
The receiving of axial force；Symmetrically equal wide grooves can limit capacity eccentric bearing housing (11) other end two under the action of locating snap ring (4)
The rotation of capacity eccentric bearing housing (11) processed；The hard alloy sleeve that capacity eccentric bearing inner sleeve (10) and capacity eccentric bearing housing (11) are sintered
It can play the role of bearing in severe subsurface environment.
Further, the upper TC bearing inner sleeve (8) is axis set type structure, and upper part sintering has hard alloy sleeve, intermediate outer
Portion is equipped with positioning step, and lower end is equipped with external screw thread；Upper TC bearing inner sleeve (8) the upper end sintering has carbide ring；Upper TC axis
It holds inner sleeve (8) lower end to be connected through a screw thread with outer rotor (3) upper end, upper TC bearing inner sleeve (8) top and TC bearing outside (7) phase
Cooperatively form TC bearing.
Further, the lower TC bearing inner sleeve (9) is axis set type structure, and its underpart, which is sintered, hard alloy sleeve, in lower end
Portion is equipped with screw thread；Upper TC bearing inner sleeve (8) the lower end sintering has carbide ring；Lower TC bearing inner sleeve (9) and outer rotor (3)
Lower end is connected through a screw thread, and lower TC bearing inner sleeve (9) lower part matches to form lower TC bearing with TC bearing outside (7).
Beneficial effect using above-mentioned further technical solution is: upper TC bearing inner sleeve (8) and TC bearing outside (7) cooperate
Form wear-resisting upper TC bearing；Lower TC bearing inner sleeve (9) and TC bearing outside (7) cooperatively form wear-resisting lower TC bearing, effectively
It ensure that the fixed-axis rotation of outer rotor (3).
The beneficial effects of the present invention are:
The present invention can be used directly in drill assembly, and outer cylinder (1) upper and lower side is connected in downhole assembly；With housing axis
Eccentric internal rotor (2) and the outer rotor (3) concentric with outer cylinder (1) axis does dead axle respectively under the action of drilling liquid pressure and turns
Dynamic, internal rotor (2) imparts power to lower end by internal rotor (2) lower thread；The System of Rotating about Fixed Axis positive displacement power tool
(01) revolving speed is only related with discharge capacity and structure, unrelated with its operating condition (bit pressure, torque etc.)；Operation torque has with pressure drop and structure
Guan Eryu revolving speed is unrelated；Which overcome the small disadvantages of turbodrill revolving speed height, torque, have the slow-speed of revolution, large torque characteristic, especially
It is suitable for drillng operation, the especially described System of Rotating about Fixed Axis positive displacement power tool fixed-axis rotation eliminates conventional screw motor bring
Oscillation crosswise reduces because Lateral Vibration of Rotor bring negatively affects, increases the service life of rubber, improves drillng operation effect
Rate.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Attached drawing 1 is the sectional structure chart of System of Rotating about Fixed Axis positive displacement power tool of the present invention.
Attached drawing 2 is the sectional view in the direction A-A in attached drawing 1.
Attached drawing 3 is the sectional view in the direction B-B in attached drawing 1.
Attached drawing 4 is the sectional structure chart of capacity eccentric bearing in the present invention.
Attached drawing 5 is the structural schematic diagram of capacity eccentric bearing in the present invention.
Attached drawing 6 is the sectional structure chart of upper TC bearing in the present invention.
Attached drawing 7 is the sectional structure chart of lower TC bearing in the present invention.
Attached drawing 8 is locating snap ring and stop ring set (5) structural schematic diagram in the present invention.
Attached drawing 9 is the embodiment structure figure that axial impact device is arranged in the present invention.
Attached drawing 10 is the embodiment structure figure that mud motor is arranged in the present invention.
In figure: outer cylinder (1), internal rotor (2), outer rotor (3), locating snap ring (4), stop ring set (5), hole card spring (6), TC
Bearing outside (7), upper TC bearing inner sleeve (8), lower TC bearing inner sleeve (9), capacity eccentric bearing inner sleeve (10), capacity eccentric bearing housing
(11), System of Rotating about Fixed Axis positive displacement power tool (01), impact assembly (02), shaft coupling assembly (03), driving-shaft assembly (04), brill
Head (05).
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention 1~10, and technical solution in the embodiment of the present invention carries out clear
Chu is fully described by.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention and its application
Or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Fig. 1, the present invention provides System of Rotating about Fixed Axis positive displacement power tool, including outer cylinder (1), internal rotor (2), outer
Rotor (3), locating snap ring (4), stop ring set (5), hole card spring (6), TC bearing outside (7), upper TC bearing inner sleeve (8), lower TC
Bearing inner sleeve (9), capacity eccentric bearing inner sleeve (10), capacity eccentric bearing housing (11) composition；Drill string is terminated on the outer cylinder (1)；It is such as attached
Fig. 2, shown in 3, the internal rotor (2) is mounted in outer rotor (3) by helical tooth internal messing and is formed at least with outer rotor (3)
There is one conjugation closing chamber, internal rotor (2) upper and lower ends are equipped with capacity eccentric bearing；The capacity eccentric bearing inner sleeve (10) and eccentric shaft
Holding housing (11) group becomes capacity eccentric bearing, capacity eccentric bearing eccentricity be equal to the centers of internal rotor (2) and outer rotor (3) away from；It is described
Outer rotor (3) upper and lower part is respectively equipped with TC bearing and lower TC bearing；Use is placed in eccentric shaft to the locating snap ring (4) in pairs
Outside is held, stop ring set (5) blocks locating snap ring (4), and it is mobile that circlip is mounted on jump-ring slot limitation stop ring set (5)；In this way, passing through
Internal rotor (2) is screwed into outer rotor (3) by hexagonal structure in internal rotor (2) upper end, thus internal rotor (2) and outer rotor (3) weight
The cross section curve for closing part is a conjugate curves, meets gear-driven requirement, the sealing for also meeting positive displacement motor is wanted
It asks, internal rotor (2) and outer rotor (3) form inside engaged gear group, and when drilling fluid entering tool, internal rotor (2) is inclined at both ends
Fixed-axis rotation is done under the limitation that mandrel is held and transmits power to lower end, while outer rotor (3) is in upper TC bearing and lower TC bearing
Fixed-axis rotation is done under limitation；As shown in attached drawing 1,8, capacity eccentric bearing is mounted on internal rotor (2) upper and lower ends, and locating snap ring (4) is placed in
On the outside of capacity eccentric bearing, stop ring set (5) is blocked locating snap ring (4), and hole card spring (6) is mounted on jump-ring slot limitation stop ring set (5)
It is mobile；In this way, this dead axle positive displacement power impact tool can be directly installed in conventional drill assembly.
As shown in attached drawing 4,5, the capacity eccentric bearing is made of capacity eccentric bearing housing (11) and capacity eccentric bearing inner sleeve (10), institute
Stating the sintering of capacity eccentric bearing housing (11) one end has a carbide ring, and the other end sets that there are two equal wide grooves；Outside the capacity eccentric bearing
The through-hole being equipped in the middle part of (11) with outer diameter bias is covered, sintering has hard alloy sleeve in through-hole；The capacity eccentric bearing housing (11) is burnt
The one end for having carbide ring is equipped with step；The capacity eccentric bearing housing (11) is equipped with several through flow holes；The capacity eccentric bearing
Inner sleeve (10) is axis set type structure, and external sintering has hard alloy sleeve.In this way, the sintering of capacity eccentric bearing housing (11) one end is hard
Matter alloy hoop is matched to play with the carbide ring that upper TC bearing inner sleeve (8) upper end is sintered and be rotated to outer rotor (3)
The receiving of axial force in the process；Capacity eccentric bearing housing (11) other end two equal wide grooves can limit capacity eccentric bearing housing (11)
Rotation, capacity eccentric bearing housing (11) setting through flow hole can be with water conservancy diversion drilling fluid, capacity eccentric bearing inner sleeve (10) and capacity eccentric bearing
The hard alloy sleeve that inner sleeve housing (11) is sintered can play the role of bearing in severe subsurface environment.
As shown in Figures 6, 7, the upper TC bearing inner sleeve (8) is axis set type structure, and top sintering has hard alloy sleeve, in
Between it is external be equipped with positioning step, lower end is equipped with external screw thread；Upper TC bearing inner sleeve (8) the upper end sintering has carbide ring, on
TC bearing inner sleeve (8) top matches to form upper TC bearing with TC bearing outside (7).The lower TC bearing inner sleeve (9) is axle sleeve
Type structure, lower part sintering have hard alloy sleeve, and lower end is internally threaded；Upper TC bearing inner sleeve (8) the lower end sintering has hard
Matter alloy hoop, lower TC bearing inner sleeve (9) lower part match to form lower TC bearing with TC bearing outside (7).In this way, upper TC bearing and
Lower TC bearing collective effect makes outer rotor (3) do fixed-axis rotation and limits its axial movement；Upper TC bearing inner sleeve (8) and TC bearing
Existing minim gap can flow through drilling fluid and cool down to upper TC bearing between housing (7), while above-mentioned flow through TC axis
The gap that the drilling fluid between inner sleeve (8) and TC bearing outside (7) also flows through between outer rotor (3) and outer cylinder (1) is held externally to turn
Sub (3) are cooled down.
The present invention as power in the axial impact device of underground embodiment structure figure referring to attached drawing 9, impact assembly (02)
It is threadedly attached in the lower end of shell in System of Rotating about Fixed Axis positive displacement power tool (01), in drillng operation, internal rotor is driven
The fixed-axis rotation for impacting Moving plate in assembly, drilling fluid flow area changes to show to generate water attack between Moving plate and quiet disk
As further generating axial impact, improving drill bit efficiency of breaking rock and reduce drill string stick slip vibration.
The present invention as power in mud motor embodiment structure figure referring to attached 10, shaft coupling assembly (03) dress
It is located at internal rotor lower end in System of Rotating about Fixed Axis positive displacement power tool (01), driving-shaft assembly (04) and drill bit are further successively installed
(05)；In drilling process, System of Rotating about Fixed Axis positive displacement power tool provides power for drill bit fractured rock, has conventional screw
Radial vibration bring negatively affects when avoiding conventional screw motor operations while the motor slow-speed of revolution, large torque characteristic.
System of Rotating about Fixed Axis positive displacement power tool of the present invention is alternatively arranged as setting, and that underground is played on other downhole tools is dynamic
The effect of force motor.
In the present invention for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1
Butut mode is come what is be described, and such as: front, back, left, right, up, down, medium positional relationship are the cloth according to Figure of description 1
Figure mode is merely for convenience of description of the present invention and simplification of the description come what is determined, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
Claims (5)
1. System of Rotating about Fixed Axis positive displacement power tool (01), including outer cylinder (1), internal rotor (2), outer rotor (3), locating snap ring (4), only
Moving ring sleeve (5), hole card spring (6), TC bearing outside (7), upper TC bearing inner sleeve (8), lower TC bearing inner sleeve (9), capacity eccentric bearing
Inner sleeve (10), capacity eccentric bearing housing (11) composition；Drill string is terminated on the outer cylinder (1)；The internal rotor (2) passes through in helical tooth
Engagement is mounted in outer rotor (3) and is formed with outer rotor (3) the conjugation closing chamber of at least one, internal rotor (2) up and down two
End is equipped with capacity eccentric bearing；The capacity eccentric bearing inner sleeve (10) and capacity eccentric bearing housing (11) group become capacity eccentric bearing, capacity eccentric bearing
Eccentricity be equal to the centers of internal rotor (2) and outer rotor (3) away from；Outer rotor (3) upper and lower part is respectively equipped with TC axis
It holds and lower TC bearing；Use is placed on the outside of capacity eccentric bearing the locating snap ring (4) in pairs, and stop ring set (5) blocks locating snap ring (4),
It is mobile that hole card spring (6) is mounted on jump-ring slot limitation stop ring set (5).
2. System of Rotating about Fixed Axis positive displacement power tool according to claim 1, which is characterized in that the outer rotor (3) is axle sleeve
Type structure.Positioning step and internal screw thread are equipped with inside outer rotor (3) upper end；It is fixed to be equipped with outside outer rotor (3) lower end
Position step and external screw thread；The outer rotor (3) is internal to form the screw rod curved surface matched with outer rotor (3) by injection process
Structure.
3. System of Rotating about Fixed Axis positive displacement power tool according to claim 1, which is characterized in that the capacity eccentric bearing housing (11)
One end sintering has a carbide ring, and the other end sets that there are two equal wide grooves；Be equipped in the middle part of the capacity eccentric bearing housing (11) with it is outer
The through-hole of diameter bias, the interior sintering of through-hole have hard alloy sleeve；Capacity eccentric bearing housing (11) sintering has the one of carbide ring
End is equipped with step；The capacity eccentric bearing housing (11) is equipped with several through flow holes；The capacity eccentric bearing inner sleeve (10) is axle sleeve type knot
Structure, external sintering have hard alloy sleeve.
4. System of Rotating about Fixed Axis positive displacement power tool according to claim 1, which is characterized in that the upper TC bearing inner sleeve (8)
For axis set type structure, upper part sintering has hard alloy sleeve, and intermediary outside is equipped with positioning step, and lower end is equipped with external screw thread；It is described
Upper TC bearing inner sleeve (8) upper end sintering has carbide ring.
5. System of Rotating about Fixed Axis positive displacement power tool according to claim 1, which is characterized in that the lower TC bearing inner sleeve (9)
For axis set type structure, lower part sintering has hard alloy sleeve, and lower end is internally threaded；It burns upper TC bearing inner sleeve (8) lower end
Have carbide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386992.9A CN110056309B (en) | 2019-05-10 | 2019-05-10 | Fixed-shaft rotary positive displacement power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386992.9A CN110056309B (en) | 2019-05-10 | 2019-05-10 | Fixed-shaft rotary positive displacement power tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056309A true CN110056309A (en) | 2019-07-26 |
| CN110056309B CN110056309B (en) | 2020-08-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910386992.9A Active CN110056309B (en) | 2019-05-10 | 2019-05-10 | Fixed-shaft rotary positive displacement power tool |
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| CN (1) | CN110056309B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188576A (en) * | 2020-03-26 | 2020-05-22 | 成都佳琛石油机械有限公司 | Low-energy-consumption hydraulic oscillator |
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111188576A (en) * | 2020-03-26 | 2020-05-22 | 成都佳琛石油机械有限公司 | Low-energy-consumption hydraulic oscillator |
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
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