CN106151151B - Spiral oscillating oil cylinder with axial force compensation function - Google Patents
Spiral oscillating oil cylinder with axial force compensation function Download PDFInfo
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- CN106151151B CN106151151B CN201510162653.4A CN201510162653A CN106151151B CN 106151151 B CN106151151 B CN 106151151B CN 201510162653 A CN201510162653 A CN 201510162653A CN 106151151 B CN106151151 B CN 106151151B
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- axial force
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Abstract
The present invention relates to a kind of spiral oscillating oil cylinder with axial force compensation function.Including：End cap, roller bearing, connector, cylinder body, piston, axis, sealing ring；Piston is engaged by the bull external spiral on the outside of it with the bull inside spin of cylinder body, and is engaged by the bull inside spin on the inside of it with the bull external spiral of output shaft；One end of piston matches somebody with somebody to merge with cylinder gap separates cylinder body both sides cavity volume using seal, the other end matches somebody with somebody to merge with output shaft clearance separates output shaft both sides cavity volume using seal, so that piston hydraulic coupling driving under can axial reciprocating movement, force axis to be rotated relative to cylinder body；The axial force added during double helix auxiliary driving is eliminated to improve transmission efficiency by axial force compensated cavity, larger moment of torsion can be exported in less space.
Description
Technical field
, should the present invention relates to a kind of compact-sized spiral oscillating oil cylinder with axial force compensation function of hydraulic-driven
Oil cylinder exports big moment of torsion using the double helix engaging structure and its annex of inside and outside multi-head spiral.
Background technology
Oscillating oil cylinder mainly has vane type, pinion and-rack and spiral, it is industrially widely used.
Vane type oscillating oil cylinder, due to its design feature, interior leakage is big, can not bear high pressure, therefore its output torque one
As less, it is impossible to meet for large torque output requirement, and swing angle can not be more than 360 °；Pinion and-rack, outside
Shape size is big, occupied space is more；Spiral oscillating oil cylinder is a kind of oil cylinder that movement is transmitted using helical spline engagement, this
Oil cylinder has the advantages that small, light-weight, compact-sized, therefore is widely used in manipulator, environmental sanitation vehicles, working at height
Platform, solar energy tracking device, concrete transport vehicle, the tool changing device etc. of machine tool and machining center.
With industrial expansion, do not require nothing more than that compact-sized, swing angle is big to oscillating oil cylinder, and torsion is exported to it
Square, transmission efficiency require also higher and higher.
The content of the invention
The present invention provides a kind of spiral oscillating oil cylinder with axial force compensation function, and the oil cylinder is by eliminating double helix pair
The axial force added in transmission process improves transmission efficiency, can export larger moment of torsion in less space.
Spiral oscillating oil cylinder according to the present invention includes：End cap, roller bearing, connector, cylinder body, piston, axis, sealing
Circle.Piston is engaged by the bull outer spiral spline on the outside of it with the bull internal thread spline of cylinder body, the bull inside spin of inner side
Spline is engaged with the bull outer spiral spline of output shaft；One end of piston matches somebody with somebody to merge with cylinder gap separates cylinder body using sealing ring
Both sides cavity volume, the other end then matches somebody with somebody to merge with output shaft clearance separates output shaft both sides cavity volume using sealing ring so that piston is in liquid
Being capable of axial reciprocating movement under pressure-driven；Piston under the action of its both sides hydraulic coupling pressure difference axially movable, due to inside and outside
The engagement of helical spline, forces axis around center rotating；End cap and axis are connected through a screw thread, and encrypt seal sealing, end cap and cylinder
The taper roll bearing being used to support is installed between body, and seal is encrypted between roller bearing both sides, end cap and cylinder body, is formed
One independent axial force compensated cavity；Installation is used to support the taper roller axis of effect between the other end and cylinder body of output shaft
Hold, and sealing ring is installed between output shaft and cylinder body；In two annular seal spaces of piston both sides, the axial force compensating chamber of distance
An annular seal space farther out has consistent oil pressure, the axial force for Differential Output axis with axial force compensated cavity.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
Description of reference numerals：1. 6. axis of end cap 2. roller bearing, 3. connector, 4. cylinder body, 5. piston, 7. sealing ring A.
Screw thread B. external spiral secondary C. inside spin secondary D. assignment holes.
Spiral oscillating oil cylinder according to the present invention includes：End cap 1, roller bearing 2, connector 3, cylinder body 4, piston 5, axis 6,
Sealing ring 7.Piston 5 engages to form external spiral by the bull outer spiral spline on the outside of it with the bull internal thread spline of cylinder body 4
Secondary B, the bull internal thread spline of inner side engage to form inside spin secondary C with the bull outer spiral spline of output shaft 6；The one of piston 5
End separates 4 both sides cavity volume of cylinder body with 4 clearance fit of cylinder body and using sealing ring 7, and the other end is then simultaneously sharp with 6 clearance fit of output shaft
Output shaft both sides cavity volume is separated with sealing ring 7 so that piston 5 being capable of axial reciprocating movement under hydraulic coupling driving；Piston 5 is at it
Under the action of the hydraulic coupling pressure difference of both sides axially movable, due to the engagement of internal and external screw spline, axis 6 is forced around axis rotation；End
Lid 1 is connected with axis 6 by screw thread A, and is encrypted seal 7 and sealed, and the taper roller being used to support is installed between end cap 1 and cylinder body 4
Bearing 2, and seal 7 is encrypted between 2 both sides of roller bearing, end cap 1 and cylinder body 4, an independent axial force compensated cavity is formed,
The axial force compensated cavity can eliminate the axial force added during double helix auxiliary driving to improve transmission efficiency；Output shaft 6
The taper roll bearing 2 for the effect of being used to support is installed between the other end and cylinder body 4, and is pacified between output shaft 6 and cylinder body 4
Fill sealing ring 7；In two annular seal spaces of 5 both sides of piston, the axial force compensating chamber of a distance annular seal space farther out and axial force
Compensated cavity is connected by assignment hole D, the oil pressure for being consistent two chambers, for eliminating the axis added during double helix auxiliary driving
Transmission efficiency is improved to power, larger moment of torsion can be exported in less space.
Claims (3)
1. a kind of spiral oscillating oil cylinder with axial force compensation function, including：End cap (1), roller bearing (2), connector (3),
Cylinder body (4), piston (5), axis (6), sealing ring (7), it is characterised in that：Axial force compensated cavity only is set in axis (6) one end；Axis
(6) one end and end cap (1) are connected through a screw thread, and taper roll bearing (2) is installed between end cap (1) and cylinder body (4), axis (6)
Taper roll bearing (2) is installed between the other end and cylinder body (4)；Axial force compensated cavity is another by assignment hole (D) and piston (5)
The oil pressure that the oil pocket of side is consistent；Piston (5) is less than piston (5) by one end of proximal cover (1) and the diameter of axis (6) mating surface
The minimum diameter of the bull internal thread spline of inner side, the other end of piston (5) are more than piston with the diameter of cylinder body (4) mating surface
(5) maximum gauge of bull outer spiral spline.
A kind of 2. spiral oscillating oil cylinder with axial force compensation function according to claim 1, it is characterised in that：It is axial
Force compensating intracavitary installs a taper roll bearing (2).
A kind of 3. spiral oscillating oil cylinder with axial force compensation function according to claim 1, it is characterised in that：It is axial
Force compensating chamber is that the annular space that seal (7) is formed is encrypted between end cap (1) and cylinder body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510162653.4A CN106151151B (en) | 2015-04-09 | 2015-04-09 | Spiral oscillating oil cylinder with axial force compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510162653.4A CN106151151B (en) | 2015-04-09 | 2015-04-09 | Spiral oscillating oil cylinder with axial force compensation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151151A CN106151151A (en) | 2016-11-23 |
| CN106151151B true CN106151151B (en) | 2018-04-24 |
Family
ID=57335769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510162653.4A Active CN106151151B (en) | 2015-04-09 | 2015-04-09 | Spiral oscillating oil cylinder with axial force compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151151B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654442B (en) * | 2017-08-14 | 2020-04-17 | 芜湖慧盈自动化设备有限公司 | Air cylinder assembly capable of transmitting air and arranged at tail end of industrial robot |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495856A (en) * | 1983-11-07 | 1985-01-29 | Phillip Sollami | Rotary actuator |
| US4823678A (en) * | 1987-10-26 | 1989-04-25 | Sollami Phillip A | Rotary actuator |
| CN101499693A (en) * | 2009-03-19 | 2009-08-05 | 哈尔滨工程大学 | Oil path built-in swivel motor for underwater manipulator |
| CN102797623A (en) * | 2012-08-19 | 2012-11-28 | 杭州宇控机电工程有限公司 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
| CN203374547U (en) * | 2013-07-18 | 2014-01-01 | 武汉科技大学 | Single-blade hydraulic pressure self-servo swinging cylinder |
| CN204533027U (en) * | 2015-04-09 | 2015-08-05 | 赵德朝 | There is the spiral oscillating oil cylinder of axial force compensation function |
-
2015
- 2015-04-09 CN CN201510162653.4A patent/CN106151151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495856A (en) * | 1983-11-07 | 1985-01-29 | Phillip Sollami | Rotary actuator |
| US4823678A (en) * | 1987-10-26 | 1989-04-25 | Sollami Phillip A | Rotary actuator |
| CN101499693A (en) * | 2009-03-19 | 2009-08-05 | 哈尔滨工程大学 | Oil path built-in swivel motor for underwater manipulator |
| CN102797623A (en) * | 2012-08-19 | 2012-11-28 | 杭州宇控机电工程有限公司 | Double-helix swing hydraulic motor with flow distribution and power distribution functions |
| CN203374547U (en) * | 2013-07-18 | 2014-01-01 | 武汉科技大学 | Single-blade hydraulic pressure self-servo swinging cylinder |
| CN204533027U (en) * | 2015-04-09 | 2015-08-05 | 赵德朝 | There is the spiral oscillating oil cylinder of axial force compensation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151151A (en) | 2016-11-23 |
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