CN102797623B - Double-helix swing hydraulic motor with flow distribution and power distribution functions - Google Patents
Double-helix swing hydraulic motor with flow distribution and power distribution functions Download PDFInfo
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- CN102797623B CN102797623B CN201210294733.1A CN201210294733A CN102797623B CN 102797623 B CN102797623 B CN 102797623B CN 201210294733 A CN201210294733 A CN 201210294733A CN 102797623 B CN102797623 B CN 102797623B
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- output shaft
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- 238000005315 distribution function Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 244000309464 bull Species 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Hydraulic Motors (AREA)
Abstract
The invention relates to a hydraulic motor structure, and aims at providing a double-helix swing hydraulic motor with flow distribution and power distribution functions. The double-helix swing hydraulic motor comprises an output shaft, a cylindrical cylinder body, a piston, an input end cap, an output end cap, a flow distribution shaft, and a power distribution ring driving shaft; the output shaft is orderly sleeved by the cylinder body and the piston from the outside to the inside, and one end of the output shaft is connected with the output end cap; the piston is engaged with a multi-start internal screw of the cylinder body through a multi-start external screw outside the piston, and is engaged with a multi-start external screw of the output shaft through a multi-start internal screw inside the piston; one end of the piston is in clearance fit with the cylinder body, and the cavities at the two sides of the cylinder body are separated by a sealing member; the other end of the piston is in clearance fit with the output shaft, and the cavities at the two sides of the output shaft are separated by a sealing member; and thus the piston can perform reciprocating motion in an axial direction under the driving by hydraulic pressure. The invention has the advantages of simple structure, compact structure, great output torque, arbitrarily-designed swing angle, flow distribution and power distribution functions, and the like, and can greatly improve system output torque.
Description
Technical field
The present invention relates to a kind of double helix rotary actuator structure having flow and distribution of hydraulically powered compact structure, utilize the double helix meshing engagement structure of inside and outside multi-head spiral and annex thereof to export the oscillating motion of high pulling torque, and the flow realizing gerotor motor export and output shaft rotation angle detects and distributing function.
Background technique
Oscillating motion industrial occasions demand very wide, as the occasion such as material transmission, arm, mechanical arm of industrial system.Not only claimed structure is compact for the current executive component to oscillating motion, pendulum angle is large, and requires also more and more higher to gerotor motor output torque, and swing mechanism also should have some miscellaneous functions, as having the structures such as flow ring or distributor track simultaneously.
Rotary actuator is that integrated machinery, hydraulic pressure are in the hydraulic actuator of one.Traditional gerotor motor is as blade oscillating motor because its structural feature cannot bear high pressure, and therefore its output torque is generally little, can not meet the requirement exported for high pulling torque, and pendulum angle can not be greater than 360 °.And although the existing swing structure be made up of oil hydraulic cylinder can make it export high pulling torque by structural design, its pendulum angle realized can not more than 180 °, and structure is usually very large and be not suitable for many related occasion.
Both needed the oscillating motion of high pulling torque to export the occasion of flow, distribution again at such as mechanical arm, arm etc. in addition, current gerotor motor is not all accomplished.
Invention Inner holds
The technical problem to be solved in the present invention is, overcomes deficiency of the prior art, provides a kind of double helix rotary actuator with flow and distributing function.By the engaging mechanism of multi-head spiral and the innovative design of auxiliary accessory thereof, improve the output torque of gerotor motor, realize the problem of joining oily distribution of gerotor motor simultaneously.
For technical solution problem, solution of the present invention is:
A kind of double helix rotary actuator with flow and distributing function is provided, comprises output shaft and columnar cylinder body, also comprise: piston, input end cap, output end cap, pintle and distributor track live axle;
Described cylinder body, piston, output shaft are sheathed successively from outside to inside, and one end of output shaft is by fastening nuts, and the other end is connected to output end cap; Piston is engaged with the bull internal spiral of cylinder body by the bull external spiral outside it, and is engaged with the bull external spiral of output shaft by the bull internal spiral inside it; One end of piston coordinates with cylinder gap and utilizes Sealing to separate cylinder body both sides cavity volume, and the other end then coordinates with output shaft clearance and utilizes Sealing to separate output shaft both sides cavity volume, and piston can be moved by axial reciprocating under hydraulic coupling drives;
Sheathed pintle in the axial hole of described output shaft, distributor track live axle is then sheathed in pintle; Output shaft radial and axial is equipped with the hole covering flow duct for connecting pintle and output terminal;
Described input end covers and is provided with a shrinkage pool, and one end of pintle and shrinkage pool Spielpassung are also fixed on input end and cover; Pintle radial and axial is equipped with the hole covering flow duct for connecting output shaft and input end;
Described output terminal covers and is provided with a shrinkage pool, and one end of distributor track live axle and shrinkage pool Spielpassung are also fixed on output terminal and cover, and the other end is then connected to electric slip ring and angle transducer.
In the present invention, at the two ends of output shaft and the tapered roller bearing that arranges between output shaft and cylinder body for supporting, tapered roller bearing and cylinder body and output shaft are transition fit.
In the present invention, separated in each flow duct between described pintle and output shaft with Sealing, the corresponding flow duct that each flow duct and input end cover communicates.
In the present invention, exporting end cap and arrange compensated loop between the tapered roller bearing of this side, compensated loop and cylinder body are threaded connection, and compensated loop and output end cap Spielpassung; Meanwhile, compensated loop and cylinder body and export between end cap and be respectively equipped with Sealing.
In the present invention, between the input end cap side and output shaft of cylinder body, arrange bearing ring, bearing ring coordinates with cylinder body and output shaft clearance, together with the side of bearing ring abuts against with tapered roller bearing; Meanwhile, bearing ring and be respectively equipped with Sealing between cylinder body and output shaft.
In the present invention, outside input end cap, be provided with oil circuit interface, oil circuit interface is connected to the flow duct that input end covers.
Output shaft external spiral of the present invention and piston internal spiral and cylinder body internal spiral and piston external spiral form double helix engaging mechanism, piston rotates and straight line compound motion under the effect of its both sides hydraulic coupling pressure reduction, and output shaft exports rotary motion and moment of torsion under the support of tapered roller bearing.
The present invention has following beneficial effect:
The present invention has that structure is simple, compact structure, output torque large, pendulum angle can design arbitrarily, have the advantage such as distribution, flow.Present invention employs balanced compensated structure, greatly can improve the output torque of system; The present invention is particularly useful for the large output torque of the needs such as manipulator or arm, big swing angle needs flow simultaneously and the occasion of distribution and detection output angle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1 cylinder body, 2 tapered roller bearings, 3 export end cap, 4 output shafts, 5 bearing rings, 6 input end caps, 7 pintles, 8 pistons, 9 O shape circles, 10 round nut lock washers, 11 round nuts, 12 hexagon head bolts, 13 hexagon head bolts, 14 distributor track live axles, 15 supporting bases, 16 electric slip rings and angle transducer, 17 oil circuit interfaces, 18 hexagon socket cap head screws, 19 O shape circles, 20 compensated loops, 21 O shape circles, 22 O shape circles, 23 guidance tapes, 24 O shape circles, 25 Cock screws, 26 Cock screws, 27 Cock screws, 28 pads, 29 hexagon head bolts, 30O shape is enclosed, 31 O shape circles, 32 O shape circles.
Fig. 2 is output shaft schematic diagram.
Fig. 3 is the right elevation of output shaft in Fig. 2.
Fig. 4 is pintle schematic diagram.
Fig. 5 is the right elevation of pintle in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, the present invention is described in detail.
The invention provides a kind of rotary actuator structure with flow and distribution, as shown in Figure 1, it is made up of the drive part of gerotor motor, flow part, compensated part, output shaft angle sensor and distribution section and other fit sealings etc.;
Drive part is made up of cylinder body 1, output shaft 4, piston 8, tapered roller bearing 2, round nut lock washer 10, round nut 11 and O shape circle etc., after the hydraulic oil entering into cylinder body 1 by oil circuit interface 17 enters the cavity volume of piston 8 both sides, promote piston 8 to-and-fro motion in cylinder body 1 and output shaft 4, by the to-and-fro motion of piston 8, output shaft 4 can export corresponding angle of oscillation and moment of torsion.
Flow part is made up of oil circuit interface 17, input end cap 6, pintle 7, output shaft 4 and output end cap, the part of these parts all has the hole of the runner needing flow, by coordinating of pintle and output shaft, the hydraulic oil channel of oil circuit interface input can arrive output end cap, realizes the flow of hydraulic oil.
Compensated part is enclosed Sealing etc. formed by bearing ring 5, output shaft 4, tapered roller bearing 2, compensated loop 20,0 shape, by by compensated part, can the hydraulic coupling of bucking-out system, and improve the output torque of rotary actuator.
Output shaft angle sensor and distribution section are made up of electric slip ring and angle transducer 16, distributor track live axle 14, supporting base 15 and fastening piece thereof.By distributor track live axle 14, the oscillating motion of output shaft drives angle transducer 16, detects the angle of oscillation of output shaft 4 relative to standing part such as cylinder body 1 grade; Distributor track live axle 14 drives electric slip ring 16 simultaneously, makes the electric part exported realize being rotationally connected.
Concrete product structure is as follows:
Cylinder body 1, piston 8, output shaft 4 are sheathed successively from outside to inside, and one end of cylinder body 1 and output shaft 4 is all connected to input end cap 6, and the other end is all connected to and exports end cap 3; Piston 8 is engaged with the bull internal spiral of cylinder body 1 by the bull external spiral outside it, and is engaged with the bull external spiral of output shaft 4 by the bull internal spiral inside it; One end of piston 8 and cylinder body 1 Spielpassung also utilize Sealing to separate cylinder body 1 both sides cavity volume, and the other end then utilizes Sealing to separate output shaft 4 both sides cavity volume with output shaft 4 Spielpassung, and piston 8 can be moved by axial reciprocating under hydraulic coupling drives;
Sheathed pintle 7 in the axial hole of described output shaft 4, distributor track live axle 14 is sheathed in pintle 7; Output shaft 4 is fixed on input end cap 6 with bolt 12, its radial and axial hole be equipped with for connecting flow duct on pintle 7, input end cap 6 and output end cap 3;
Described output end cap 3 is provided with a shrinkage pool, and one end of distributor track live axle 14 and shrinkage pool Spielpassung are also fixed on and export on end cap 3, and the other end is then connected to electric slip ring and angle transducer.
Between output shaft 4 and cylinder body 1, arrange the tapered roller bearing 2 for supporting at the two ends of output shaft 4, tapered roller bearing 2 is Spielpassung with cylinder body 1 and output shaft 4, and connects cylinder body 1 and output shaft 4 by Sealing.
Described pintle 7 and output shaft 4 Spielpassung; Pintle 7 offers some flow ducts, separated in each flow duct between pintle 7 and output shaft 4 with Sealing, each flow duct communicates to the corresponding flow duct on input end cap 6.
Exporting end cap 3 and arrange compensated loop 20 between the tapered roller bearing 2 of this side, compensated loop 20 and cylinder body 1 are threaded connection, and compensated loop 20 and output end cap 3 Spielpassung; Meanwhile, compensated loop 20 and cylinder body 1 and export between end cap 3 and be respectively equipped with Sealing.
Outside input end cap 6, be provided with oil circuit interface 17, oil circuit interface 17 is connected to the flow duct on input end cap 6.
Finally, it should be noted that above what enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (6)
1. one kind has the double helix rotary actuator of flow and distributing function, comprise output shaft (4) and columnar cylinder body (1), it is characterized in that, also comprise: piston (8), input end cap (6), output end cap (3), pintle (7) and distributor track live axle (14);
Described cylinder body (1), piston (8), output shaft (4) are sheathed successively from outside to inside, and one end of output shaft (4) is fastening by round nut (11), and the other end is connected to and exports end cap (3); Piston (8) is engaged by the bull internal spiral of the bull external spiral outside it with cylinder body (1), and is engaged with the bull external spiral of output shaft (4) by the bull internal spiral inside it; One end of piston (8) and cylinder body (1) Spielpassung also utilize Sealing to separate cylinder body (1) both sides cavity volume, the other end then utilizes Sealing to separate output shaft (4) both sides cavity volume with output shaft (4) Spielpassung, and piston (8) can be moved by axial reciprocating under hydraulic coupling drives;
Sheathed pintle (7) in the axial hole of described output shaft (4), distributor track live axle (14) is then sheathed in pintle (7); The radial and axial hole be equipped with for connecting pintle (7) and the upper flow duct of output end cap (3) of output shaft (4);
Described input end cap (6) is provided with a shrinkage pool, and one end of pintle (7) and shrinkage pool Spielpassung are also fixed on and input on end cap (6); The radial and axial hole be equipped with for connecting output shaft (4) and the upper flow duct of input end cap (6) of pintle (7);
Described output end cap (3) is provided with a shrinkage pool, and one end of distributor track live axle (14) and shrinkage pool Spielpassung being fixed on exports on end cap (3), and the other end is then connected to electric slip ring and angle transducer.
2. double helix rotary actuator according to claim 1, it is characterized in that, at the two ends of output shaft (4) and the tapered roller bearing (2) that arranges between output shaft (4) and cylinder body (1) for supporting, tapered roller bearing (2) is transition fit with cylinder body (1) and output shaft (4).
3. double helix rotary actuator according to claim 1, it is characterized in that, separated in each flow duct with Sealing between described pintle (7) and output shaft (4), each flow duct communicates to the corresponding flow duct in input end cap (6).
4. double helix rotary actuator according to claim 1, it is characterized in that, export end cap (3) and be positioned at this side tapered roller bearing (2) between compensated loop (20) is set, compensated loop (20) and cylinder body (1) are threaded connection, and compensated loop (20) and output end cap (3) Spielpassung; Meanwhile, compensated loop (20) and cylinder body (1) and export between end cap (3) and be respectively equipped with Sealing.
5. double helix rotary actuator according to claim 1, it is characterized in that, between input end cap (6) side and output shaft (4) of cylinder body (1), bearing ring (5) is set, bearing ring (5) and cylinder body (1) and output shaft (4) Spielpassung, together with the side of bearing ring (5) abuts against with tapered roller bearing; Meanwhile, bearing ring (5) and be respectively equipped with Sealing between cylinder body (1) and output shaft (4).
6. double helix rotary actuator according to claim 1, it is characterized in that, be provided with oil circuit interface (17) in input end cap (6) outside, oil circuit interface (17) is connected to the flow duct in input end cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294733.1A CN102797623B (en) | 2012-08-19 | 2012-08-19 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294733.1A CN102797623B (en) | 2012-08-19 | 2012-08-19 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
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| Publication Number | Publication Date |
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| CN102797623A CN102797623A (en) | 2012-11-28 |
| CN102797623B true CN102797623B (en) | 2015-02-25 |
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| CN201210294733.1A Expired - Fee Related CN102797623B (en) | 2012-08-19 | 2012-08-19 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
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Families Citing this family (5)
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| CN106151151B (en) * | 2015-04-09 | 2018-04-24 | 赵德朝 | Spiral oscillating oil cylinder with axial force compensation function |
| CN108506156B (en) * | 2018-04-13 | 2023-12-05 | 杭州宇控机电工程有限公司 | Elbow joint swing hydraulic motor for full sea depth hydraulic manipulator |
| CN108506273B (en) * | 2018-06-13 | 2024-01-19 | 山东大学 | Reversing hydraulic motor |
| CN110626486B (en) * | 2018-06-25 | 2021-10-19 | 上海阿勒法船舶设备有限公司 | Rudder-shaft-free rudder system with actuating mechanism arranged in rudder blade |
| CN112405598A (en) * | 2020-10-14 | 2021-02-26 | 同济大学 | Ball double-screw hydraulic swing joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2338745A1 (en) * | 1973-07-31 | 1975-02-13 | Hausherr & Soehne Maschf | Hydraulic or pneumatic rotary drive - threads of cylinder, piston and output-gear have twisted polygonal profiles |
| GB1444798A (en) * | 1972-12-06 | 1976-08-04 | ||
| JPH01206102A (en) * | 1988-02-12 | 1989-08-18 | Kitagawa Iron Works Co Ltd | Rodless type hydraulic cylinder device |
| WO1990008904A1 (en) * | 1989-01-26 | 1990-08-09 | Arcos Hydraulik Ab | Fluid-powered precision oscillator |
| CN201225348Y (en) * | 2008-06-04 | 2009-04-22 | 郭玉恒 | Hydraulic two-stage spiral swinging oil cylinder |
| CN101701594A (en) * | 2009-10-27 | 2010-05-05 | 淮海工学院 | Independent controllable large rotating angle electrohydraulic servo oscillating hydraulic cylinder |
| CN202732215U (en) * | 2012-08-19 | 2013-02-13 | 杭州宇控机电工程有限公司 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
-
2012
- 2012-08-19 CN CN201210294733.1A patent/CN102797623B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444798A (en) * | 1972-12-06 | 1976-08-04 | ||
| DE2338745A1 (en) * | 1973-07-31 | 1975-02-13 | Hausherr & Soehne Maschf | Hydraulic or pneumatic rotary drive - threads of cylinder, piston and output-gear have twisted polygonal profiles |
| JPH01206102A (en) * | 1988-02-12 | 1989-08-18 | Kitagawa Iron Works Co Ltd | Rodless type hydraulic cylinder device |
| WO1990008904A1 (en) * | 1989-01-26 | 1990-08-09 | Arcos Hydraulik Ab | Fluid-powered precision oscillator |
| CN201225348Y (en) * | 2008-06-04 | 2009-04-22 | 郭玉恒 | Hydraulic two-stage spiral swinging oil cylinder |
| CN101701594A (en) * | 2009-10-27 | 2010-05-05 | 淮海工学院 | Independent controllable large rotating angle electrohydraulic servo oscillating hydraulic cylinder |
| CN202732215U (en) * | 2012-08-19 | 2013-02-13 | 杭州宇控机电工程有限公司 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
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| CN102797623A (en) | 2012-11-28 |
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