CN105782159A - Hydraulic rotary actuator - Google Patents
Hydraulic rotary actuator Download PDFInfo
- Publication number
- CN105782159A CN105782159A CN201610270956.2A CN201610270956A CN105782159A CN 105782159 A CN105782159 A CN 105782159A CN 201610270956 A CN201610270956 A CN 201610270956A CN 105782159 A CN105782159 A CN 105782159A
- Authority
- CN
- China
- Prior art keywords
- urceolus
- hydraulic
- piston rod
- support arm
- end cover
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
Abstract
The embodiment of the invention discloses a hydraulic rotary actuator, and belongs to the technical field of mechanical design and solves the problem of occupancy of relative large physical space. The actuator comprises an outer tube (3) which is a cylindrical tube fixed on the rotation axle of a folding mechanism, the lower segment of the outer tube is a common hydraulic actuation tube, the lower end of the outer tube 3 is used as an oil cavity of the hydraulic actuation tube, an oil inlet valve and an oil outlet valve are formed on the wall of the lower segment of the outer tube 3. A rotation arm 4 is mounted on a piston rod 2, and a fan-shaped opening is formed on the outer tube 3 corresponding to the rotation arm 4 and used as the activity space of the rotation arm 4. A vertical slide groove is arranged on the inner ring surface of a rotation device 7 and in slide fit with the rotation arm 4. Internal thread is carved on the side edge of the upper end cover 5 and in cooperation connection with external thread of the residual fan-shaped area on the upper end of the outer tube 3 except symmetrical fan-shaped openings, the lower end surface of the side edge of the upper end cover 5 presses down the upper end surface of the rotation device 7, and a roll ball is arranged between the two end surfaces.
Description
Technical field
The present invention relates to technical field of mechanical design, particularly relate to a kind of hydraulic rotating actuator.
Background technology
Would generally adopting fold mechanism in actuator at present, wherein fold mechanism is a kind of device that can carry out according to demand and launch Yu close, and has a wide range of applications in mechanical engineering.
Conventional fold mechanism specifically includes that driving device, rocking arm and connection system etc. complete the opening and closing of fold mechanism by linear driving force, but it is more to there are parts in the design of this fold mechanism, the problem needing to take bigger physical space, it is difficult to be applied in during the actuator that lightweight and small form factor requirements are higher is designed.
Summary of the invention
Embodiments of the invention provide a kind of hydraulic rotating actuator, it is possible to the problem solving to need to take bigger physical space.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
Urceolus 3 is the cylinder being fixed in fold mechanism rotating shaft, the hypomere of urceolus 3 is conventional hydraulic pressurized strut, being separated by sealing dividing plate 8 between the upper-lower section of urceolus 3, the lower end of urceolus 3, as the oil pocket of hydraulic actuator, the hypomere barrel of urceolus 3 has inlet valve and delivery valve.
Urceolus 3 upper end is equipped with upper end cover 5, urceolus 3 is connected to the rotating shaft of described fold mechanism by bottom end cover 9 and upper end cover 5, upper end cover 5 centre bore is formed with piston rod 2 and coordinates, and piston rod 2 is played support and guide effect, the epimere of urceolus 3 is carved with female thread, and form threaded engagement with piston rod 2, by threaded engagement piston rod 2 under straight line force promotes along screw thread rotation.
Rotating support arm 4 is arranged on piston rod 2, and on urceolus 3, the position of corresponding rotating support arm 4 has fan-shaped mouth, as the activity space of rotating support arm 4.
Arranging annular boss near described fan-shaped mouth lower limb vicinity on urceolus 3, rotary apparatus 7 is enclosed within the fan-shaped mouth correspondence position of urceolus 3, arranges ball between lower surface and the annular boss of rotary apparatus 7.
The inner ring surface of rotary apparatus 7 arranges vertical chute, is slidably matched with rotating support arm 4.
Being carved with female thread on the side of upper end cover 5, after opening fan-shaped mouth with two of urceolus 3 upper end symmetry, the external screw thread of remaining sector region is connected, and the upper surface of rotary apparatus 7 is pushed down in the side lower surface of upper end cover 5, and arranges ball between two end faces.
Having inside boss on the end face of upper end cover 5, have circular hole in the middle of described boss, piston rod 2 is through described circular hole, and the external diameter of described boss forms a circumference chute less than the inner threaded surface of the internal diameter of urceolus 3 upper end, boss and upper end cover 5 side.
The hydraulic rotating actuator that the embodiment of the present invention provides, utilize the hydraulic actuator being installed in rotating shaft, linear driving force is converted to torsion driving force to complete fold mechanism opening and closing, when this hydraulic rotating actuator is directly mounted in the rotating shaft of fold mechanism, the connection member between actuator and fold mechanism can be simplified, the volume taken can be significantly reduced, alleviate the quality of structure, make structure more compact, solve the problem needing to take bigger physical space, it is possible to be widely used in during the actuator that lightweight and small form factor requirements are higher is designed.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The population structure schematic diagram of Fig. 1 hydraulic rotating actuator；
The structural representation of Fig. 2 urceolus fan-shaped mouth；
The schematic diagram of Fig. 3 rotating support arm and piston rod attachment structure；
The structural representation of Fig. 4 rotary apparatus；
The structural representation of Fig. 5 upper end cover；
Wherein, each label in accompanying drawing represents respectively: piston-1, piston rod-2, urceolus-3, rotating support arm-4, upper end cover-5, hydraulic valve-6, rotary apparatus-7, sealing dividing plate-8, bottom end cover-9.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Embodiments of the present invention are described in more detail below, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Should be further understood that, the wording " including " used in the description of the present invention refers to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or adds other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or can also there is intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Wording "and/or" used herein includes one or more any cell listing item being associated and all combinations.Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (include technical term and scientific terminology) and have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that in such as general dictionary, those terms of definition should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or excessively formal implication.
The embodiment of the present invention provides a kind of hydraulic rotating actuator, as it is shown in figure 1, include: piston 1, piston rod 2, urceolus 3, rotating support arm 4, upper end cover 5, hydraulic valve 6, rotary apparatus 7, sealing dividing plate 8, bottom end cover 9.
Wherein, urceolus 3 is the cylinder being fixed in fold mechanism rotating shaft, and the hypomere of urceolus 3 is conventional hydraulic pressurized strut, is separated by sealing dividing plate 8 between the upper-lower section of urceolus 3, the lower end of urceolus 3, as the oil pocket of hydraulic actuator, the hypomere barrel of urceolus 3 has inlet valve and delivery valve.
Further, urceolus 3 upper end is equipped with upper end cover 5, urceolus 3 is connected to the rotating shaft of described fold mechanism by bottom end cover 9 and upper end cover 5, upper end cover 5 centre bore is formed with piston rod 2 and coordinates, and piston rod 2 is played support and guide effect, the epimere of urceolus 3 is carved with female thread, and forms threaded engagement with piston rod 2, by threaded engagement piston rod 2 under straight line force promotes along screw thread rotation.
Wherein, in order to ensure that piston rod 2 along screw thread rotation, self-locking can not occur, lead angle be there are certain requirements under the effect of linear driving force F.Lead angle be there are certain requirements.Namely should ensure that the component in the driving force F threadingly direction frictional force more than thread contact face.The female thread that the epimere of urceolus 3 is carved with, meets tan α > f, and wherein α is lead angle, and f is thread contact planar friction factor.Concrete, it is assumed that thread contact face friction factor f=0.2, desirable lead angleTake pitch diameter of thread d2=22mm, then lead pitch s=π d2Tan α=21mm, guide rail urceolus 3 female thread lengthThe pressure of the hydraulic actuator offer 21MPa that aviation is conventional, then the area taking piston 1 isThe sectional area of piston rod 2 isThe straight line active force that now hydraulic means provides is F=15.5kN, and the torsional moment of generation is M=92N m.
As shown in Figure 3, rotating support arm 4 is arranged on piston rod 2, and as shown in Figure 2, on urceolus 3, the position of corresponding rotating support arm 4 has fan-shaped mouth, as the activity space of rotating support arm 4.Arranging annular boss near described fan-shaped mouth lower limb vicinity on urceolus 3, rotary apparatus 7 is enclosed within the fan-shaped mouth correspondence position of urceolus 3, arranges ball between lower surface and the annular boss of rotary apparatus 7.Wherein, as shown in Figure 4, the inner ring surface of rotary apparatus 7 arranges vertical chute, is slidably matched with rotating support arm 4.
As shown in Figure 5, the side of upper end cover 5 is carved with female thread, after opening fan-shaped mouth with two of urceolus 3 upper end symmetry, the external screw thread of remaining sector region is connected, and the upper surface of rotary apparatus 7 is pushed down in the side lower surface of upper end cover 5, and arranges ball between two end faces.
Having inside boss on the end face of upper end cover 5, have circular hole in the middle of described boss, piston rod 2 is through described circular hole, and the external diameter of described boss forms a circumference chute less than the inner threaded surface of the internal diameter of urceolus 3 upper end, boss and upper end cover 5 side.When producing axial and screw displacement when piston rod 2, rotary apparatus 7 does not produce axial displacement, and the rotation in plane only occurs.
The hydraulic rotating actuator of the present embodiment, by the form being extended in Fig. 1 by the cylinder of conventional hydraulic pressurized strut urceolus 3 and be installed in the rotating shaft of fold mechanism, expands part and thickeies, separate with sealing dividing plate 8 therebetween.Urceolus 3 lower end, as the oil pocket of hydraulic actuator, has inlet valve and delivery valve；Further, relative to the piston rod of conventional hydraulic pressurized strut, the piston rod of the hydraulic rotating actuator of the present embodiment lengthens, and coordinates with the centre bore formation of the end cap 5 on urceolus 3 and sealing dividing plate 8；And in order to the linear driving force that hydraulic pressure produces being converted to torsion driving force, piston rod 2 is carved external screw thread, urceolus 3 inwall carves female thread；And the fan-shaped mouth of 120 ° is opened in the position of corresponding rotating support arm 4 on urceolus 3, as the activity space of rotating support arm 4, and urceolus 3 arranges annular boss near fan-shaped mouth lower limb vicinity.Rotary apparatus 7 is enclosed within the fan-shaped mouth correspondence position of urceolus 3, and the lower surface of rotary apparatus 7, at the following at least 5mm of fan-shaped mouth lower limb, arranges ball between lower surface and the annular boss of rotary apparatus 7.The inner ring surface of rotary apparatus 7 arranges vertical chute, is slidably matched with rotating support arm 4；And on the side of upper end cover 5, it is carved with female thread, it is connected with the external screw thread of urceolus 3 upper end (symmetrical two open fan-shaped mouth after remaining sector region), the upper surface of rotary apparatus 7 is pushed down in the side lower surface of upper end cover 5, arranges ball between two end faces.
In the present embodiment, on urceolus 3, the position of corresponding rotating support arm 4 has the fan-shaped mouth of 120 °.
In the present embodiment, urceolus 3 is connected to the rotating shaft of described fold mechanism by thickness on urceolus 3 be more than or equal to the connector that threshold value place is arranged.Or, urceolus 3 is connected to the rotating shaft of described fold mechanism by the connector that thickness maximum on urceolus 3 is arranged.
In the present embodiment, rotating support arm 4 and piston rod 2 interference fit.
Or, rotating support arm 4 is fastened with piston rod 2 after being heated by shape memory alloy material.
Or, rotating support arm 4 is fastened by steady pin and piston rod 2.
In the preferred version of the present embodiment, rotary apparatus 7 is enclosed within the described fan-shaped mouth correspondence position of urceolus 3, and the lower surface of rotary apparatus 7, at the following at least 5mm of described fan-shaped mouth lower limb, arranges ball between lower surface and the annular boss of rotary apparatus 7.
In the preferred version of the present embodiment, urceolus 3 external diameter is 50mm.End cap 5 external diameter is 60mm.Urceolus length is 200mm, and wherein, hydraulic actuator segment length is 80mm, and wall thickness is 5mm, and thread segment length is 70mm, and wall thickness is 10mm, and rotary apparatus 7 segment length is 50mm, and wall thickness is 4mm.Concrete, it is assumed that fold mechanism rotating shaft internal diameter is 30mm, and can hold length is 220mm, drives the torsional moment M that fold mechanism opening and closing needsNeedFor 90N m, then the outer cylinder size that can design hydraulic rotating actuator is as follows: urceolus 3 external diameter is 50mm.End cap 5 external diameter is 60mm.Urceolus length is 200mm, and wherein hydraulic actuator segment length is 80mm, and wall thickness is 5mm, and thread segment length is 70mm, and wall thickness is 10mm, and the length of the corresponding section of rotary apparatus 7 is 50mm, and wall thickness is 4mm.
In the preferred version of the present embodiment, the arm diameter in rotating support arm 4 takes 15mm, and the height of rotating support arm 4 takes 15+25=40mm, internal diameter 20mm, external diameter 36mm.Rotary apparatus 7 highly takes 45+5=50mm, internal diameter 50mm, external diameter 60mm, and the arm diameter on rotary apparatus 7 is 15mm.
In the specific works mode of the rotary actuator that the present embodiment provides, including:
During positive stroke, fuel tap is driven in lower half chamber into, and fuel tap is outputed in upper half chamber so that P1>P2, thus producing linear driving force axially upward.Under the effect of this driving force, piston rod 2 starts to rotate along the screw thread of guide rail urceolus 3, drives rotating support arm 4 to rotate, drives rotary apparatus 7, complete the unlatching of fold mechanism.Wherein, setting half chamber hydraulic pressure is P1, upper half chamber hydraulic pressure is P2。
During revesal, fuel tap is outputed in lower half chamber, and fuel tap is driven in upper half chamber into so that P1<P2, thus producing linear driving force axially downward.Under the effect of this driving force, piston rod 2 starts to reversely rotate along the screw thread of guide rail urceolus 3, drives rotating support arm 4 to rotate backward, drives rotary apparatus 7, complete the Guan Bi of fold mechanism.
The maximum opening angle of hydraulic rotating actuator is 90 °, it is possible to control actual opening angle by displacement transducer.The driving moment provided as required, the parameter of design hydraulic rotating actuator, according to the strength and stiffness of the size of driving moment, piston rod and rotating support arm, the impact of internal friction should be considered during design simultaneously.Therefore the hydraulic rotating actuator that the present embodiment provides, under certain hydraulic pressure difference, just can complete from linear driving force to the conversion reversing driving force, thus completing unlatching and the Guan Bi of fold mechanism.From above-mentioned design process it can be seen that the space that takies of this hydraulic rotating actuator is only small.The hydraulic rotating actuator that the embodiment of the present invention provides, utilize the hydraulic actuator being installed in rotating shaft, linear driving force is converted to torsion driving force to complete fold mechanism opening and closing, when this hydraulic rotating actuator is directly mounted in the rotating shaft of fold mechanism, the connection member between actuator and fold mechanism can be simplified, the volume taken can be significantly reduced, alleviate the quality of structure, make structure more compact, solve the problem needing to take bigger physical space, it is possible to be widely used in during the actuator that lightweight and small form factor requirements are higher is designed.
Each embodiment in this specification all adopts the mode gone forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is the difference with other embodiments.Especially for apparatus embodiments, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part illustrates referring to the part of embodiment of the method.The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (8)
1. a hydraulic rotating actuator, it is characterized in that, including: piston (1), piston rod (2), urceolus (3), rotating support arm (4), upper end cover (5), hydraulic valve (6), rotary apparatus (7), sealing dividing plate (8), bottom end cover (9)；
Urceolus (3) is the cylinder being fixed in fold mechanism rotating shaft, the hypomere of urceolus (3) is conventional hydraulic pressurized strut, separated by sealing dividing plate (8) between the upper-lower section of urceolus (3), the lower end of urceolus (3), as the oil pocket of hydraulic actuator, the hypomere barrel of urceolus (3) has inlet valve and delivery valve；
Urceolus (3) upper end is equipped with upper end cover (5), urceolus (3) is connected to the rotating shaft of described fold mechanism by bottom end cover (9) and upper end cover (5), upper end cover (5) centre bore is formed with piston rod (2) and coordinates, and piston rod (2) is played support and guide effect, the epimere of urceolus (3) is carved with female thread, and form threaded engagement with piston rod (2), by threaded engagement piston rod (2) under straight line force promotes along screw thread rotation；
Rotating support arm (4) is arranged on piston rod (2), and the position of the upper corresponding rotating support arm (4) of urceolus (3) has fan-shaped mouth, as the activity space of rotating support arm (4)；
Urceolus (3) is upper arranges annular boss near described fan-shaped mouth lower limb vicinity, rotary apparatus (7) is enclosed within the fan-shaped mouth correspondence position of urceolus (3), arranges ball between lower surface and the annular boss of rotary apparatus (7)；
The inner ring surface of rotary apparatus (7) arranges vertical chute, is slidably matched with rotating support arm (4)；
The side of upper end cover (5) is carved with female thread, it is connected with the external screw thread of urceolus (3) upper end (symmetrical two open fan-shaped mouth after remaining sector region), the upper surface of rotary apparatus (7) is pushed down in the side lower surface of upper end cover (5), and arranges ball between two end faces；
The end face of upper end cover (5) there is inside boss, circular hole is had in the middle of described boss, piston rod (2) the described circular hole of traverse, the external diameter of described boss forms a circumference chute less than the inner threaded surface of the internal diameter of urceolus (3) upper end, boss and upper end cover (5) side.
2. hydraulic rotating actuator according to claim 1, it is characterised in that the position of the upper corresponding rotating support arm (4) of urceolus (3) has the fan-shaped mouth of 120 °.
3. hydraulic rotating actuator according to claim 1, it is characterised in that urceolus (3) is connected to the rotating shaft of described fold mechanism by the upper thickness of urceolus (3) be more than or equal to the connector that threshold value place is arranged；
Or urceolus (3) is connected to the rotating shaft of described fold mechanism by the connector that the upper thickness maximum of urceolus (3) is arranged.
4. hydraulic rotating actuator according to claim 1, it is characterised in that the female thread that the epimere of urceolus (3) is carved with, meets tan α > f, and wherein α is lead angle, and f is thread contact planar friction factor.
5. hydraulic rotating actuator according to claim 1, it is characterised in that rotating support arm (4) and piston rod (2) interference fit；
Or, rotating support arm (4) is fastened with piston rod (2) after being heated by shape memory alloy material；
Or, rotating support arm (4) is fastened with piston rod (2) by steady pin.
6. hydraulic rotating actuator according to claim 1, it is characterized in that, rotary apparatus (7) is enclosed within the described fan-shaped mouth correspondence position of urceolus (3), the lower surface of rotary apparatus (7), at the following at least 5mm of described fan-shaped mouth lower limb, arranges ball between lower surface and the annular boss of rotary apparatus (7).
7. hydraulic rotating actuator according to claim 1, it is characterised in that urceolus (3) external diameter is 50mm；
End cap (5) external diameter is 60mm；
Urceolus length is 200mm, and wherein, hydraulic actuator segment length is 80mm, and wall thickness is 5mm, and thread segment length is 70mm, and wall thickness is 10mm, and rotary apparatus (7) segment length is 50mm, and wall thickness is 4mm.
8. hydraulic rotating actuator according to claim 1, it is characterised in that the arm diameter in rotating support arm (4) takes 15mm, and the height of rotating support arm (4) takes 15+25=40mm, internal diameter 20mm, external diameter 36mm；Rotary apparatus (7) highly takes 45+5=50mm, internal diameter 50mm, external diameter 60mm, and the arm diameter on rotary apparatus (7) is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270956.2A CN105782159B (en) | 2016-04-27 | 2016-04-27 | A kind of hydraulic rotating actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270956.2A CN105782159B (en) | 2016-04-27 | 2016-04-27 | A kind of hydraulic rotating actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782159A true CN105782159A (en) | 2016-07-20 |
| CN105782159B CN105782159B (en) | 2017-10-10 |
Family
ID=56399516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270956.2A Expired - Fee Related CN105782159B (en) | 2016-04-27 | 2016-04-27 | A kind of hydraulic rotating actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782159B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067784A (en) * | 2019-05-23 | 2019-07-30 | 浙江大学城市学院 | A kind of Two-dimensional Liquid cylinder pressure and variable damper control formula Two-dimensional Liquid cylinder pressure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1349221A (en) * | 1971-09-14 | 1974-04-03 | Daiei Kogyosha Kk | Fluid actuator |
| US3913448A (en) * | 1971-08-04 | 1975-10-21 | Univ Loughborough | Hydraulic actuator |
| CN1562704A (en) * | 2004-03-23 | 2005-01-12 | 重庆大学 | Actuator for rotating or folding aerofoil of airplane |
| CN102162477A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Actuator cylinder |
| CN102162509A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Locking device of electric actuating cylinder |
| CN103708026A (en) * | 2013-12-30 | 2014-04-09 | 湖北航达科技有限公司 | Dual-redundancy electric acting barrel |
| CN104696468A (en) * | 2013-12-09 | 2015-06-10 | 四川凌峰航空液压机械有限公司 | Hydraulic drive limited-rotating-angle straight rotating actuator |
| CN204461240U (en) * | 2015-01-21 | 2015-07-08 | 浙江理工大学 | Twice-folded aerofoil horizontal spreading mechanism |
| CN105003494A (en) * | 2015-05-22 | 2015-10-28 | 南京航空航天大学 | Actuator |
| CN105179388A (en) * | 2015-09-09 | 2015-12-23 | 西安正安环境技术有限公司 | Electro-hydraulic actuator of spherical pump for robot |
-
2016
- 2016-04-27 CN CN201610270956.2A patent/CN105782159B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913448A (en) * | 1971-08-04 | 1975-10-21 | Univ Loughborough | Hydraulic actuator |
| GB1349221A (en) * | 1971-09-14 | 1974-04-03 | Daiei Kogyosha Kk | Fluid actuator |
| CN1562704A (en) * | 2004-03-23 | 2005-01-12 | 重庆大学 | Actuator for rotating or folding aerofoil of airplane |
| CN102162477A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Actuator cylinder |
| CN102162509A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Locking device of electric actuating cylinder |
| CN104696468A (en) * | 2013-12-09 | 2015-06-10 | 四川凌峰航空液压机械有限公司 | Hydraulic drive limited-rotating-angle straight rotating actuator |
| CN103708026A (en) * | 2013-12-30 | 2014-04-09 | 湖北航达科技有限公司 | Dual-redundancy electric acting barrel |
| CN204461240U (en) * | 2015-01-21 | 2015-07-08 | 浙江理工大学 | Twice-folded aerofoil horizontal spreading mechanism |
| CN105003494A (en) * | 2015-05-22 | 2015-10-28 | 南京航空航天大学 | Actuator |
| CN105179388A (en) * | 2015-09-09 | 2015-12-23 | 西安正安环境技术有限公司 | Electro-hydraulic actuator of spherical pump for robot |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067784A (en) * | 2019-05-23 | 2019-07-30 | 浙江大学城市学院 | A kind of Two-dimensional Liquid cylinder pressure and variable damper control formula Two-dimensional Liquid cylinder pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105782159B (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101886683B (en) | Adjustable hydraulic buffer | |
| CN105074264B (en) | cylinder and buffer | |
| CN102287536B (en) | Electronic expansion valve | |
| CN107387810A (en) | The machine feedback formula Numeric hydraulic cylinder that a kind of valve pocket can be servo-actuated | |
| CN102179439A (en) | Thick-wall pipe hydroforming device | |
| CN105562748B (en) | A kind of lathe finish fixture of machining high-precision thin-walled parts | |
| CN103341515A (en) | Extrusion forming mould for annular ribs of magnesium alloy shell parts | |
| CN201141445Y (en) | Bidirectional hard-sealing non-abrasion rail butterfly valve | |
| CN107138534A (en) | A kind of removing method of short stress path rolling mill and its thread pitch | |
| CN101451556A (en) | Hydraulic pressure moving tube with emergency back function | |
| CN105782159A (en) | Hydraulic rotary actuator | |
| CN110345123A (en) | A kind of miniature linear hydraulic actuator of trailing type and its application method | |
| JPS62196432A (en) | Shock absorber | |
| CN102962630A (en) | Elastic floating rolling device | |
| CN101705954A (en) | Floating joint buffering hydraulic cylinder | |
| CN100545491C (en) | Sealing structure of rotating wedge-type valve | |
| CN103486329A (en) | Ball head assembly and drying machine valve installing structure with same | |
| CN207648184U (en) | A kind of double eccentric part spherical shell structures of the thin-walled with stiff shaft | |
| CN103241085B (en) | Ball socket bush structure connected to automobile chassis suspension control arm | |
| CN208719482U (en) | A kind of direct acting stacked compression release valve | |
| CN205618468U (en) | Pushing -type clamping device is with rotatory hydro -cylinder in among CNC tube bending machine | |
| CN108787847A (en) | A kind of clamped-in style mold of pressure forming machine | |
| CN115289169B (en) | Detachable variable damping inflatable hydraulic shock absorber | |
| RU2613797C1 (en) | Safety valve lever | |
| CN205371126U (en) | Manipulator joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| 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: 20171010 Termination date: 20190427 |