CN110345121A - Double-blade type rotary actuator - Google Patents
Double-blade type rotary actuator Download PDFInfo
- Publication number
- CN110345121A CN110345121A CN201910669748.3A CN201910669748A CN110345121A CN 110345121 A CN110345121 A CN 110345121A CN 201910669748 A CN201910669748 A CN 201910669748A CN 110345121 A CN110345121 A CN 110345121A
- Authority
- CN
- China
- Prior art keywords
- bearing
- double
- sharf
- type rotary
- rotary actuator
- 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.)
- Pending
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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/04—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member with oscillating cylinder
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of Double-blade type rotary actuators, belong to Hydraulic servo drive field, including sharf, first end cover, first bearing end cap, first bearing seat, motor cylinder, second bearing seat, second bearing end cap, second end cover, two fixed blades and two tapered roller bearings.First bearing seat and second bearing seat are fixed on cylinder body both ends, sharf is arranged along the central axis of cylinder body, a pair of tapered roller bearing used in pairs of setting at sharf and the shaft shoulder of first bearing seat and second bearing seat, fixed blade cylinder finger setting, screw is fixed on motor cylinder inner wall, at a distance of 180 °.By optimization design sharf and fixed blade, make Double-blade type rotary actuator of the invention relative to transmission motor, output torque is bigger, and slewing area is bigger, and sealing effect is more preferable.
Description
Technical field
The invention belongs to Hydraulic servo drive fields, and in particular to a kind of Double-blade type rotary actuator.
Background technique
Hydraulic drive has the advantages that small in size, light-weight, rigidity is big, power density is big, power output (torque) is big, hydraulic
SERVO CONTROL has the performance of fast frequency response, speed-regulating range width and low steady rate, this makes hydraulic drive and its servo
Control is widely used in the fields such as weapon industry, aerospace, shipping industry, equipment manufacture, engineering machinery.It is existing double
There is output torque, rotating angle movement ranges not to be able to satisfy industrial requirement for vane type rotary actuator, and seals under high pressure
Performance is decreased obviously.
Chinese patent CN90203233.X proposes a kind of " vane-type swaying motor ", with positioning pin by stator and front and back end
Lid link；Rotor is mounted in the corresponding slot of output shaft, is fastened with pin positioning screw；With screw by front cover, rear cover and cylinder body
Link one；Stator oil resistant rubber or polyurethane sealing enclosed rectangular seal, rotor oil resistant rubber or polyurethane open type
Rectangular seal；It is rotated using bearing support output shaft.But the program is not considered to let out between rotor hub and output shaft
Leakage, the leakage between stator root and cylinder body, therefore there is very serious leakage problem.Meanwhile there is also corner fortune for the motor
Dynamic range is too small, and rated pressure is too low to cause output torque too small, and assembly is complicated, bulky (relative to its output torque) etc.
A series of problem.
Summary of the invention
It is simple and compact for structure the purpose of the present invention is to provide a kind of Double-blade type rotary actuator, foot can be exported
Enough big torque and rotating angle movement range, while having both good seal performance.
The technical solution for realizing the aim of the invention is as follows: a kind of Double-blade type rotary actuator, including
Motor cylinder, as cavity；
Across the sharf of motor cylinder, two rotors are symmetrically arranged with about it on sharf, rotor is located at motor cylinder
It is interior；
Two fixed blades, are fixed in motor cylinder, and contact with sharf, sharf, motor cylinder, two fixed blades
Identical a pair of of the high pressure chest of capacity and a pair of of low pressure chamber are formed between two rotors, high pressure chest and low pressure chamber are intervally arranged；
It is fixed on the first bearing seat and second bearing seat at motor cylinder both ends, sharf both ends are respectively from first bearing seat
It is stretched out with second bearing seat,
The tapered roller bearing being separately positioned in first bearing seat and second bearing seat passes through first bearing end cap and
Two bearing (ball) covers, which are realized, to be fixed,
First end cover and second end cover are separately fixed on first bearing end cap and second bearing end cap, realize sealing and dustproof
Effect.
Further, there are four oil inlet and outlet A1, A2, B1, B2 on motor cylinder, and wherein A1, A2 symmetrically run through motor cylinder
Body setting, B1, B2 symmetrically run through motor cylinder setting, and four oil inlet and outlets are located at fixed blade two sides, so that four disengaging oil
Mouthful A1, A2, B1, B2 be located at four it is intracavitary.
Further, while through the plane of two fixed blades it is parallel to horizontal plane.
Compared with prior art, the present invention its remarkable advantage is:
(1) sharf and stator structure are optimized, output torque, angle range is made to become larger (slewing area ± 65 °).
(2) design for using bearing and bearing block guarantees that sharf stress is good, guarantees that axial gap is certain, reduces horse
Up to internal leakage, while reducing friction and improving efficiency.
(3) sealing structure is optimized, guarantees sealing performance.
Detailed description of the invention
Fig. 1 is the main sectional view of Double-blade type rotary actuator of the invention.
Fig. 2 is the sectional view of Double-blade type rotary actuator of the invention.
Fig. 3 is the top view of Double-blade type rotary actuator of the invention.
Fig. 4 is the bottom view of Double-blade type rotary actuator of the invention.
Fig. 5 is the stress view of Double-blade type rotary actuator of the invention.
Fig. 6 is the screw enlarged drawing of Double-blade type rotary actuator of the invention.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
Double-blade type rotary actuator of the present invention combined with Figure 1 and Figure 2, including sharf 1, first end cover 2,
First bearing end cap 3, first bearing seat 4, motor cylinder 5, second bearing seat 7, second bearing end cap 8, second end cover 9, two
Fixed blade 6 and two tapered roller bearings 12.
Sharf 1 includes integrally manufactured transmission shaft and two rotors, is provided with along the central axis of transmission shaft one long logical
Hole, transmission shaft is eight rank cylinder multi-diameter shafts, with the first rank axis, second-order axis ... number consecutively, wherein the first rank axis is the
One end, the first rank axis are sequentially increased to the 5th rank shaft diameter, and the 5th rank axis is sequentially reduced to the 8th rank shaft diameter, and rotor is strip
Shape, length be equal to the 5th rank axis length, about the 5th rank axis diameter symmetry and be fixed on the 5th rank axis outer wall.
Fixed blade 6 (i.e. stator) is with motor cylinder 5 using split type.Fixed blade 6 is strip, and root two sides are respectively provided with one
Groove, convenient for oil inlet reversed after rotor motion to extreme position to make rotor counter motion.Two fixed blades 6 are arranged in motor
In cylinder body 5, cross shear is born by the positioning of straight pin 25 in side, prevents fixed blade 6 from occurring to turn along 5 inner wall of motor cylinder
It is dynamic, and be connected fixed blade 6 and motor cylinder 5 by screw 14, spring washer 15, so that another side contacts blade of fixed blade 6
5th rank axis of axis 1 prevents fixed blade 6 from radial-play, diameter symmetry of the fixed blade 6 about the 5th rank axis occurs, and then is driven
Identical a pair of of the high pressure chest of capacity and a pair of of low pressure chamber are formed between axis, 5, two fixed blades 6 of motor cylinder and two rotors, it is high
Pressure chamber and low pressure chamber are intervally arranged.
It is parallel to horizontal plane through the plane of two fixed blades 6 simultaneously, passes through above-described rotor and fixed blade 6, energy
The slewing area for enough realizing Double-blade type rotary actuator is 130 ° (i.e. ± 65 °), the 100- relative to traditional wobble motor
120 °, motion range greatly promotes.
First bearing seat 4 and second bearing seat 7 pass through bearing block screw 13 and are fixed on 5 both ends of motor cylinder, 1 edge of sharf
The center line of motor cylinder 5 is arranged, the 5th rank axle position in motor cylinder 5, second-order axis, third rank axis and fourth order axle position in
In first bearing seat 4, second-order shaft end portion and the first rank axis stretch out first bearing seat 4, hexastep shaft, the 7th rank axis, the 8th rank
Axle position is in second bearing seat 7, and second bearing seat 7 is stretched out in the 8th rank shaft end portion.The axis of third rank axis 1 and first bearing seat 4
One tapered roller bearing 12 is set at shoulder, a tapered roller bearing is set at the 7th rank axis and the shaft shoulder of second bearing seat 7
12, first bearing end cap 3 and second bearing end cap 8 pass through bearing (ball) cover screw 11 and are separately fixed at first bearing seat 4 and second
7 end face of bearing block, and it is each passed through first bearing seat 4 and second bearing seat 7 blocks tapered roller bearing 12, pass through first bearing
End cap 3 and second bearing end cap 8 realize sharf 1 and first bearing seat 4 and sharf 1 and second bearing seat 7 seal and
Sharf 1 is limited, so that sharf 1 can only rotate, prevents the axial float of sharf 1 from subtract motor internal leakage significantly
It is small, while used tapered roller bearing 12 bears the axial force and moment of flexure of the overwhelming majority, protects sharf 1, it is suffered
Frictional force also greatly reduces.First end cover 2 and 9 sets of second end cover are fixed on first axle by head bolts 10 on sharf 1
On socket end lid 3 and second bearing end cap 8, sealing and dustproof effect is realized.
In conjunction with Fig. 3 and Fig. 4, there are four oil inlet and outlet A1, A2, B1, B2 on the motor cylinder 5, and wherein A1, A2 are symmetrically passed through
The setting of motor cylinder 5 is worn, B1, B2 symmetrically run through the setting of motor cylinder 5, and four oil inlet and outlets are located at 6 two sides of fixed blade, so that
Four oil inlet and outlets A1, A2, B1, B2 be located at four it is intracavitary.Assuming that the first end of sharf 1 is outside perpendicular to paper, then
When work, when A1, A2 are oil inlet, and B1, B2 are oil outlet, sharf 1 will rotate counterclockwise；When A1, A2 be oil outlet,
When B1, B2 are oil inlet, sharf 1 will be rotated clockwise.
Double-blade type rotary actuator of the present invention further includes that 2 the first O-ring seals 19,2 second are O-shaped close
23,2 third O-ring seals 24 of seal.2 O-ring seals 19 are separately positioned between first bearing seat 4 and cylinder body 5, second
Between bearing block 7 and cylinder body 5；2 O-ring seals 23 are separately positioned between first bearing end cap 3 and first bearing seat 4,
Between two bearing (ball) covers 8 and second bearing seat 7.2 O-ring seals 24 are separately positioned between first end cover 2 and sharf 1,
Between second end cover 9 and sharf 1.
Double-blade type rotary actuator of the present invention further includes 4 groups of C-shaped combination sealings, and C-shaped combination sealing includes
Gasket 17 and seal O-ring 18, two groups of C-shaped combination sealings are located on two rotors, realize rotor and motor cylinder 5
Sealing, two groups of C-shaped combination sealings are located on fixed blade 6, realize the sealing of fixed blade 6 and sharf 1.
In conjunction with Fig. 6, Double-blade type rotary actuator of the present invention further includes several screw seal combinations, the spiral shell
It follows closely seal combination to be arranged on screw 14, including the first O-ring 16 and spring shim 15, a circle groove is equipped on screw 14,
First O-ring 16 is set in above-mentioned groove, and the root of screw 14 is arranged in spring shim 15, prevents hydraulic oil from fixed blade 6
Root leaked into outside motor cylinder 5 by screw 14.
Double-blade type rotary actuator of the present invention further includes 2 groups of shaft shoulder sealings, and shaft shoulder sealing includes triangle
Gasket 20, seal joint 21 and the second O-ring 22 are located at the fourth order axis of sharf 1 and the shaft shoulder of fixed blade 6,
And at the shaft shoulder of hexastep shaft and fixed blade 6.
By the design of above-described sealing structure, keep twayblade rotary actuator sealing performance of the invention opposite
It is greatly promoted in other motors.
In conjunction with Fig. 2, working principle/process is as follows: sharf 1 and fixed blade 6 divide motor cylinder 5 for four cavities (i.e.
A pair is to chamber A and a pair to chamber B).When being high pressure to chamber A, when being low pressure to chamber B, sharf 1 will be suitable under the action of hydraulic oil
Hour hands rotation；When being low pressure to chamber A, when being high pressure to chamber B, sharf 1 will rotate counterclockwise under the action of hydraulic oil.
In conjunction with Fig. 5, the discharge capacity and torque calculation of Double-blade type rotary actuator of the present invention:
Definition according to the geometry discharge capacity of Double-blade type rotary actuator is available, the discharge capacity D of interior rotary actuatormFor
In formula: W is the width of sharf blade；R1For the path of sharf 1；R2For the internal diameter of motor cylinder 5.
As shown in figure 5, the power F acted on sharf 1 is
F=(P1-P2)·(R2-R1) (1.2)
The operating radius of power is (R1+R2)/2, then the output torque T of Double-blade type rotary actuator be
Wherein P1For inlet pressure, P2For oil outlet pressure, Δ P is oil inlet and outlet pressure difference.
Double-blade type rotary actuator of the present invention can only export the movement of finite angle as a kind of hydraulic motor,
But since it has a pair of of high pressure chest and a pair of of low pressure chamber, bigger torque and compact-sized can be exported, has higher function
Rate density is commonly used for the executing agency of sporting flying simulator, steering engine load simulator.
Claims (10)
1. a kind of Double-blade type rotary actuator, it is characterised in that: including
Motor cylinder (5), as cavity；
Sharf (1) across motor cylinder (5) is symmetrically arranged with two rotors about it on sharf (1), and rotor is located at motor
In cylinder body (5)；
Two fixed blades (6) are fixed in motor cylinder (5), and are contacted with sharf (1), sharf (1), motor cylinder
(5), form identical a pair of of the high pressure chest of capacity and a pair of of low pressure chamber between two fixed blades (6) and two rotors, high pressure chest and
Low pressure chamber is intervally arranged；
It is fixed on the first bearing seat (4) and second bearing seat (7) at motor cylinder (5) both ends, sharf (1) both ends are respectively from
One bearing block (4) and second bearing seat (7) are stretched out,
The tapered roller bearing (12) being separately positioned in first bearing seat (4) and second bearing seat (7), passes through first axle socket end
It covers (3) and second bearing end cap (8) is realized and fixed,
First end cover (2) and second end cover (9) are separately fixed on first bearing end cap (3) and second bearing end cap (8), are realized
Sealing and dustproof effect.
2. Double-blade type rotary actuator according to claim 1, it is characterised in that: there are four on motor cylinder (5)
Oil inlet and outlet A1, A2, B1, B2, wherein A1, A2 symmetrically run through motor cylinder (5) setting, and B1, B2 symmetrically run through motor cylinder (5)
Setting, and four oil inlet and outlets are located at fixed blade (6) two sides, so that four oil inlet and outlets A1, A2, B1, B2 are located at four
It is intracavitary.
3. Double-blade type rotary actuator according to claim 1, it is characterised in that: while running through two fixed blades
(6) plane is parallel to horizontal plane.
4. Double-blade type rotary actuator according to claim 1, it is characterised in that: first end cover (2) and first axle
Socket end lid seals between (3).
5. Double-blade type rotary actuator according to claim 1, it is characterised in that: first bearing end cap (3) and the
One bearing block seals between (4).
6. Double-blade type rotary actuator according to claim 1, it is characterised in that: first bearing seat (4) and motor
Cylinder body seals between (5).
7. Double-blade type rotary actuator according to claim 1, it is characterised in that: sharf (1) upper rotor part and horse
It is sealed up between cylinder body (5).
8. Double-blade type rotary actuator according to claim 1, it is characterised in that: second bearing seat (7) and motor
Cylinder body seals between (5).
9. Double-blade type rotary actuator according to claim 1, it is characterised in that: second bearing end cap (8) and the
Two bearing bracket seals between (7)；It is sealed between second bearing end cap (8) and second end cover (9).
10. Double-blade type rotary actuator according to claim 1, it is characterised in that: fixed blade (6) and sharf
(1) it seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669748.3A CN110345121A (en) | 2019-07-24 | 2019-07-24 | Double-blade type rotary actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669748.3A CN110345121A (en) | 2019-07-24 | 2019-07-24 | Double-blade type rotary actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345121A true CN110345121A (en) | 2019-10-18 |
Family
ID=68179979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910669748.3A Pending CN110345121A (en) | 2019-07-24 | 2019-07-24 | Double-blade type rotary actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345121A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309757A (en) * | 2021-05-07 | 2021-08-27 | 南京晨光集团有限责任公司 | Heavy-load mechanical arm high-precision large-torque low-friction hydraulic swing motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601231A (en) * | 1981-05-26 | 1986-07-22 | Torquer Co., Ltd. | Rotary actuator and making method thereof |
| US4823678A (en) * | 1987-10-26 | 1989-04-25 | Sollami Phillip A | Rotary actuator |
| CN2087704U (en) * | 1990-03-22 | 1991-10-30 | 河北省霸县液压马达厂 | Vane-type swaying motor |
| CN102174925A (en) * | 2011-01-14 | 2011-09-07 | 上海交通大学 | Large-diameter hollow hydraulic oscillatory motor |
| CN107035611A (en) * | 2017-06-02 | 2017-08-11 | 北京航空航天大学 | A kind of small size multiple-blade servo oscillating motor |
-
2019
- 2019-07-24 CN CN201910669748.3A patent/CN110345121A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601231A (en) * | 1981-05-26 | 1986-07-22 | Torquer Co., Ltd. | Rotary actuator and making method thereof |
| US4823678A (en) * | 1987-10-26 | 1989-04-25 | Sollami Phillip A | Rotary actuator |
| CN2087704U (en) * | 1990-03-22 | 1991-10-30 | 河北省霸县液压马达厂 | Vane-type swaying motor |
| CN102174925A (en) * | 2011-01-14 | 2011-09-07 | 上海交通大学 | Large-diameter hollow hydraulic oscillatory motor |
| CN107035611A (en) * | 2017-06-02 | 2017-08-11 | 北京航空航天大学 | A kind of small size multiple-blade servo oscillating motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309757A (en) * | 2021-05-07 | 2021-08-27 | 南京晨光集团有限责任公司 | Heavy-load mechanical arm high-precision large-torque low-friction hydraulic swing motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5755196A (en) | Rotary positive displacement engine | |
| CN101847917B (en) | Axially-rotating equal-width curve double-stator multi-speed motor | |
| WO2016184405A1 (en) | Miniature blower | |
| CN203362237U (en) | Supercharger assembly | |
| CN104747365A (en) | Hydraulic swing motor | |
| CN110345121A (en) | Double-blade type rotary actuator | |
| CN102691614B (en) | Double-stator swing hydraulic multi-speed motor | |
| CN202402575U (en) | Non-circular planetary gear mechanism | |
| CN109931262B (en) | Non-circular gear driven synchronous rotary compressor | |
| CN103062046A (en) | Twisted-type rotor pump | |
| CN103821715A (en) | Translational rotation type compression machinery | |
| US3125962A (en) | figure | |
| CN210566052U (en) | Planetary differential speed reducer | |
| US6799955B1 (en) | Two-lobe rotary machine | |
| CN103062053B (en) | Friction speed rotary vane type compressor | |
| CN101440806A (en) | Vane type revolving compressor | |
| CN103671087A (en) | Pumps with revolving piston structure, related products and part of embodiments | |
| CN201326543Y (en) | Vane type rotary compressor | |
| CN104747364A (en) | Cam rotor vane type hydraulic servo motor | |
| CN201103539Y (en) | Dual-shaft variable-velocity rotary pump | |
| CN110219771A (en) | Nested type blade oscillating hydraulic motor | |
| CN2331780Y (en) | Spider hydraulic motor | |
| CN110259518B (en) | Pneumatic motor | |
| CN109340041A (en) | A kind of sliding-vane motor | |
| CN203835721U (en) | Translation rotary type compression machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |