CN108302083A - A kind of rotary extension combined oil cylinder - Google Patents
A kind of rotary extension combined oil cylinder Download PDFInfo
- Publication number
- CN108302083A CN108302083A CN201810306820.1A CN201810306820A CN108302083A CN 108302083 A CN108302083 A CN 108302083A CN 201810306820 A CN201810306820 A CN 201810306820A CN 108302083 A CN108302083 A CN 108302083A
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- China
- Prior art keywords
- cylinder
- cylinder barrel
- drive rod
- piston rod
- screw
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 60
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 description 64
- 239000010720 hydraulic oil Substances 0.000 description 9
- 239000010727 cylinder oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/063—Actuator having both linear and rotary output, i.e. dual action actuator
-
- 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
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The present invention discloses a kind of rotary extension combined oil cylinder comprising telescoping cylinder and rotating cylinder；Telescoping cylinder includes the first cylinder barrel and telescopic piston rod；Rotating cylinder includes the second cylinder barrel, screw piston and otating drive rod；Two oil pockets are respectively equipped in the cylinder barrel of telescoping cylinder and rotating cylinder, cylinder barrel is equipped with corresponding hydraulic fluid port；Otating drive rod one end is rotatablely installed in rotating cylinder, inside the first cylinder barrel of other end injection；Screw piston peripheral part is spirally connected the second cylinder barrel inner peripheral portion, and inner peripheral portion is spirally connected otating drive rod, and the peripheral part helix of screw piston and inner peripheral portion helix is oppositely oriented；It is provided with blind hole in telescopic piston rod, is connected by spline drived between blind hole hole wall circumference and otating drive rod so that otating drive rod can drive telescopic piston rod to rotate, and telescopic piston rod can be axially moved relative to otating drive rod along itself.The present invention, which can provide enough steering resisting moments and realize to turn to and hang, to stretch, while may make vehicle space layout compact.
Description
Technical field
The present invention relates to vehicle hanging Design of Steering Mechanism technical field, especially a kind of rotary extension combined oil cylinder.
Background technology
In special vehicle chassis design field, because vehicle hanging oil cylinder and steering cylinder are arranged in vehicle bridge both ends, vehicle
Steering cylinder has certain swing space, hanging oil cylinder to have certain upper and lower flexible stroke, cause space arranged apart；Together
When, special vehicle steering resisting moment is larger, and common rotary oil cylinder can not provide the steering resisting moment of vehicle.
Fig. 1 to Fig. 3 show the rotary oscillation oil cylinder that rack-and-pinion pattern is used disclosed in patent CN106015166A,
It is moved, is rotated with movable gear shaft 04 using rack 07, gear shaft 04 is driven by external splines 014 by hydraulic oil drive rack 07
Telescopic oil cylinder piston rod internal spline 013 rotates, to realize the rotation of piston rod 01.Hydraulic oil enters telescopic oil cylinder 02 without bar
Chamber, telescopic oil cylinder piston rod 01 stretches out, because the internal spline inside telescopic oil cylinder piston rod 01 is connect with the external splines of gear shaft 04,
Gear does not rotate when telescopic oil cylinder stretches out, and combined oil cylinder only has piston rod stretching.
The combined oil cylinder of this form can realize rotation and Telescopic, but the rotational resistance torque being to provide is smaller, only
It can apply in the smaller occasion of rotational resistance square demand；Steering is to enter rack cylinder by hydraulic oil, and hydraulic pressure pushes tooth again
Piston motion, the gear rotation that rack drives are engaged with, when needing rotation angle big, rack linear move distance also can
Corresponding to increase, the occupied space of the rack-and-pinion in the combined oil cylinder of this form is big, the appearance and size of the combined oil cylinder
It will increase, cannot be satisfied some vehicle working condition demands；Using the spiral oscillating oil cylinder output torque of this kind of pattern also by size
Limitation cannot meet engineering truck and turn to demand.
Invention content
The object of the present invention is to provide a kind of rotary extension combined oil cylinder, can provide enough steering resisting moments and
It can realize and turn to and hang flexible combined oil cylinder, disclosure satisfy that the requirement of heavy vehicle steering resisting moment, while make vehicle
Space layout is compact.
The technical solution that the present invention takes is：A kind of rotary extension combined oil cylinder, including telescoping cylinder and rotating cylinder；
Telescoping cylinder includes the first cylinder barrel and telescopic piston rod；In first cylinder barrel, the piston both sides of telescopic piston rod set respectively
It is equipped with oil pocket；First cylinder barrel is equipped with the hydraulic fluid port for being respectively communicated with both sides oil pocket；It is coaxially set towards rotating cylinder direction in telescopic piston rod
Set a blind hole；
Rotating cylinder includes the second cylinder barrel, screw piston and otating drive rod；Otating drive rod one end is rotatablely installed in rotation
In cylinder, in the first cylinder barrel of other end injection in the blind hole of telescopic piston rod；Screw piston peripheral part is spirally connected the second cylinder barrel inner peripheral portion,
Inner peripheral portion is spirally connected the peripheral part of otating drive rod, and the rotation direction phase of the peripheral part helix of screw piston and inner peripheral portion helix
Instead；In second cylinder barrel, the both sides of screw piston be respectively equipped with oil pocket, the second cylinder barrel is equipped with the oil for being respectively communicated with both sides oil pocket
Mouthful；
It is connected by spline drived between the blind hole hole wall circumference and otating drive rod peripheral part of telescopic piston rod so that rotation
Turning the rotation of drive link can drive telescopic piston rod to rotate, and telescopic piston rod can axially be transported relative to otating drive rod along itself
It is dynamic.
The present invention is in use, two hydraulic fluid port oil inlets of telescoping cylinder can control the expanding-contracting action of telescopic piston rod respectively, at this time
Otating drive rod is failure to actuate, and combined oil cylinder is only realized flexible.Two hydraulic fluid port oil inlets of rotating cylinder may make screw piston rotation and edge
Otating drive rod is axially moved, and then drives otating drive rod rotation.Under the action of spline, otating drive rod drives flexible live
Stopper rod rotates, and realize combination the turning moment output of oil cylinder at this time.When telescoping cylinder and rotating cylinder are carried out at the same time oil circuit control, i.e.,
The flexible and rotation of oil cylinder can be achieved at the same time.
Preferably, the first cylinder barrel is equipped with guide sleeve away from one end of the second cylinder barrel, and guide sleeve center is equipped with lives for flexible
The pilot hole that stopper rod passes through.Guide sleeve may be provided at the outside of telescoping cylinder cylinder head, also can directly as the cylinder head of telescoping cylinder, as
When cylinder head, guide sleeve is slidably and sealingly connected with the peripheral part of telescopic piston rod.
Preferably, the inner peripheral portion of the second cylinder barrel is also coaxially installed with screw-casing, and screw-casing inner peripheral portion is equipped with screw thread, and spiral is lived
Plug is threadedly coupled the second cylinder barrel, more convenient processing and assembling by screw-casing.
Preferably, screw piston inner peripheral portion is spirally connected the peripheral part of otating drive rod by helical tooth.The setting of helical tooth makes
The output of high torque can be supported by obtaining rotary oil cylinder.
Preferably, one end inner peripheral portion of the second cylinder barrel towards the first cylinder barrel is equipped with spirally-guided set, spirally-guided set rotation
It is tightly connected otating drive rod peripheral part.On the one hand the oil pocket of telescoping cylinder and rotating cylinder is isolated in spirally-guided set, on the other hand may be used
Guiding role is played to otating drive rod so that the rotation of otating drive rod is more stable.
Preferably, the first cylinder barrel is integrally formed with the second cylinder barrel.Spirally-guided set can be used as telescoping cylinder oil pocket and rotation
The boundary of cylinder oil pocket.
Preferably, otating drive rod peripheral part is set there are one external splines, the blind hole circumference in telescopic piston rod be equipped with it is each
The adaptable keyway of external splines, each keyway extend in telescopic piston rod length direction.
Preferably, blind hole hole wall is circumferentially with multiple external splines for being parallel to blind hole axial direction, and otating drive rod peripheral part is set
There is the keyway (internal spline) being adapted with each external splines.The form of spline drived can also be the outer flower of otating drive rod periphery setting
Key, blind hole inner peripheral portion are arranged keyway (internal spline), telescopic piston rod can be driven to rotate with otating drive rod, simultaneous retractable piston rod
Subject to the position for not influencing otating drive rod when flexible.
Preferably, buffer gap is equipped between the top and blind via bottom of otating drive rod.It can avoid telescopic piston rod contracting
Collision when being back to extreme position to otating drive rod.
Advantageous effect
The combined oil cylinder of the present invention can either realize rotation or flexible single action, and can realize that rotation is moved with flexible combine
Make.Rotary oil cylinder passes through itself spiral using spiral oscillating oil cylinder using the mechanism of right-handed screw inside and outside screw piston and backpitch
Line realizes torque function, disclosure satisfy that heavy-duty machinery rotation requires.Meanwhile combined oil cylinder using the present invention can realize vehicle
Characteristics of compact layout, lowers complete vehicle weight, and later stage engineering machinery vehicle application range can be increasingly wider.
Description of the drawings
Fig. 1 to Fig. 3 show rotary oscillation cylinder structure schematic diagram disclosed in patent CN106015166A；
Fig. 4 show combined oil cylinder hydraulic fluid port schematic diagram of the present invention；
Fig. 5 show combined oil cylinder structural schematic diagram of the present invention.
Specific implementation mode
It is further described below in conjunction with the drawings and specific embodiments.
With reference to figure 4 and Fig. 5, rotary extension combined oil cylinder of the invention, including telescoping cylinder 101 and rotating cylinder 102；
Telescoping cylinder 101 includes the first cylinder barrel and telescopic piston rod 5；In first cylinder barrel, the piston both sides of telescopic piston rod point
Oil pocket is not provided with it；First cylinder barrel is equipped with the hydraulic fluid port for being respectively communicated with both sides oil pocket；It is same towards rotating cylinder direction in telescopic piston rod
A blind hole is arranged in axis；
Rotating cylinder 102 includes the second cylinder barrel, screw piston 7 and otating drive rod 8；Otating drive rod one end rotational installation in
In rotating cylinder, in the first cylinder barrel of other end injection in the blind hole of telescopic piston rod 5；7 peripheral part of screw piston is spirally connected the second cylinder barrel
Inner peripheral portion, 7 inner peripheral portion of screw piston are spirally connected the peripheral part of otating drive rod 8, and the peripheral part helix and inner circumferential of screw piston 7
Portion's helix it is oppositely oriented；In second cylinder barrel, the both sides of screw piston be respectively equipped with oil pocket, the second cylinder barrel is equipped with to be connected respectively
The hydraulic fluid port of logical both sides oil pocket；
It is connected by spline drived between 8 peripheral part of blind hole hole wall circumference and otating drive rod of telescopic piston rod 5 so that
The rotation of otating drive rod can drive telescopic piston rod to rotate, and telescopic piston rod can be axial along itself relative to otating drive rod
Movement.
The present invention is in use, two hydraulic fluid port oil inlets of telescoping cylinder can control the expanding-contracting action of telescopic piston rod respectively, at this time
Otating drive rod is failure to actuate, and combined oil cylinder is only realized flexible.Two hydraulic fluid port oil inlets of rotating cylinder may make screw piston rotation and edge
Otating drive rod is axially moved, and then drives otating drive rod rotation.Under the action of spline, otating drive rod drives flexible live
Stopper rod rotates, and realize combination the turning moment output of oil cylinder at this time.When telescoping cylinder and rotating cylinder are carried out at the same time oil circuit control, i.e.,
The flexible and rotation of oil cylinder can be achieved at the same time.
The rotating cylinder of the present invention can be used existing hydraulic swing motor and replace, and the piston rod of hydraulic swing motor is as rotation
Turn drive link.
Embodiment 1
With reference to figure 4 and Fig. 5, the rotary extension combined oil cylinder of the present embodiment, including telescoping cylinder 101 and rotating cylinder 102；
Telescoping cylinder 101 includes the first cylinder barrel and telescopic piston rod 5；In first cylinder barrel, the piston both sides of telescopic piston rod point
It She Zhi not rod chamber and rodless cavity；First cylinder barrel is equipped with the first hydraulic fluid port 11 and the second oil for being respectively communicated with rod chamber and rodless cavity
Mouth 12；
Rotating cylinder 102 includes the second cylinder barrel, screw piston 7 and otating drive rod 8；8 one end of otating drive rod is rotatablely installed
Inside the cylinder bottom portion 9 of rotating cylinder, the first cylinder barrel of other end injection；7 peripheral part of screw piston is spirally connected the second cylinder by screw-casing 4
Cylinder inner peripheral portion, 7 inner peripheral portion of screw piston are spirally connected the peripheral part of otating drive rod 8, and the peripheral part helix of screw piston 7 with it is interior
Circumference helix it is oppositely oriented；In second cylinder barrel, the both sides of screw piston 7 be respectively equipped with oil pocket, the second cylinder barrel is equipped with point
Not Lian Tong both sides oil pocket third hydraulic fluid port 13 and the 4th hydraulic fluid port 14；
It is provided with coaxial blind hole in telescopic piston rod 5, passes through between blind hole hole wall circumference and otating drive rod peripheral part
Spline drived connects so that the rotation of otating drive rod can drive telescopic piston rod to rotate, and telescopic piston rod can be relative to rotation
Turn drive link to be axially moved along itself.
In the present embodiment, one end inner peripheral portion of the second cylinder barrel towards the first cylinder barrel is equipped with spirally-guided set, spirally-guided set
Rotary seal connects otating drive rod peripheral part.On the one hand the oil pocket of telescoping cylinder and rotating cylinder, another party is isolated in spirally-guided set
Face can play guiding role to otating drive rod so that the rotation of otating drive rod is more stable.
First cylinder barrel is integrally formed with the second cylinder barrel.Spirally-guided set is the boundary of telescoping cylinder oil pocket and rotating cylinder oil pocket
Place.
First cylinder barrel is equipped with guide sleeve away from one end of the second cylinder barrel, and guide sleeve center is equipped with and is passed through for telescopic piston rod
Pilot hole.In the present embodiment, cylinder head of the guide sleeve as telescoping cylinder is slidably and sealingly connected with the peripheral part of telescopic piston rod.
The inner peripheral portion that is fixed on second cylinder barrel coaxial with the second cylinder barrel of screw-casing 4,4 inner peripheral portion of screw-casing are equipped with screw thread,
Screw piston 7 is threadedly coupled the second cylinder barrel by screw-casing, i.e. screw piston 7 is spirally connected the screw-casing 4 being fixed on the second cylinder barrel,
The processing and assembling of more convenient cylinder body.
In order to realize torque performance, in the present embodiment, 7 inner peripheral portion of screw piston is spirally connected otating drive rod by helical tooth
Peripheral part.
Collision when being retracted to extreme position in order to avoid telescopic piston rod to otating drive rod, the top of otating drive rod
Buffer gap is equipped between blind via bottom.
The telescopic piston rod of the present invention and the connection relation of otating drive rod need to realize the independent flexible of telescopic piston rod
(not stretching at this time) is rotated while (otating drive rod is failure to actuate when i.e. flexible), telescopic piston rod and otating drive rod, and
(otating drive rod only rotates at this time) is rotated while telescopic piston rod is flexible.The then connection of telescopic piston rod and otating drive rod
Mode can refer to shown in Fig. 2 and Fig. 3 or other prior arts, including but not limited to：
More than one external splines is arranged in 8 peripheral part of A otating drive rods, the setting of blind hole circumference in telescopic piston rod with it is each outer
The adaptable keyway of spline, each keyway extend in 5 length direction of telescopic piston rod.
The circumferentially disposed multiple external splines for being parallel to blind hole axial direction of B blind hole hole walls, otating drive rod peripheral part be equipped with it is each
The adaptable keyway of external splines.The form of spline drived can also be otating drive rod periphery setting external splines, blind hole inner peripheral portion
Keyway is set, with reference to the documents structure of figure 3.
The present embodiment pushes telescopic piston rod in use, hydraulic oil enters telescopic oil cylinder rodless cavity by the second hydraulic fluid port 12
Piston 2 drive telescopic piston rod 5 make axial linear movement, telescopic piston rod 5 is released by hydraulic oil, realize combination oil cylinder stretching
Action, hydraulic oil enter telescopic oil cylinder rod chamber by the first hydraulic fluid port 11 and push telescopic piston 2 that telescopic piston rod 5 is driven to make straight line
Movement, telescopic piston rod are pushed back by hydraulic oil, realize combination oil cylinder retract action.When telescopic piston rod does stretching motion, rotation
Drive link 8 remains static.Hydraulic oil enters rotary oil cylinder " rodless cavity " by the 4th hydraulic fluid port 14, and hydraulic oil pushes spiral to live
7 movement of plug, the screw-casing 4 and cylinder barrel 1 being meshed with screw piston 7 are fixed, and 7 endoporus of screw piston is helix, spiral
The rotation direction of 7 spiral inner wall line of piston is opposite with the rotation direction direction of the helix of screw piston peripheral surface so that 7 edge of screw piston
The helix of 4 inner wall of screw-casing is spinned movement, while otating drive rod 8 rotates, that is, realize combination not stretching for oil cylinder
Contracting rotation.Simultaneously to the oil pocket of telescoping cylinder and rotating cylinder carry out oil inlet control can be realized combined oil cylinder it is flexible with rotation simultaneously into
Row.
In addition, the present invention can realize the reality to oil cylinder rotation angle by the setting angle sensor in otating drive rod
When detect, can in real time be adjusted as the feedback quantity of closed-loop control.
The above is only the preferred embodiment of patent of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise of not departing from patented technology principle of the present invention, several improvement and deformations can also be made, these change
Into the protection domain that also should be regarded as patent of the present invention with deformation.
Claims (10)
1. a kind of rotary extension combined oil cylinder, characterized in that including telescoping cylinder and rotating cylinder；
Telescoping cylinder includes the first cylinder barrel and telescopic piston rod；In first cylinder barrel, the piston both sides of telescopic piston rod are respectively arranged with
Oil pocket；First cylinder barrel is equipped with the hydraulic fluid port for being respectively communicated with both sides oil pocket；Towards rotating cylinder direction coaxial arrangement one in telescopic piston rod
Blind hole；
Rotating cylinder includes the second cylinder barrel, screw piston and otating drive rod；Otating drive rod one end is rotatablely installed in rotating cylinder,
In the first cylinder barrel of other end injection in the blind hole of telescopic piston rod；Screw piston peripheral part is spirally connected the second cylinder barrel inner peripheral portion, inner circumferential
Portion is spirally connected the peripheral part of otating drive rod, and the peripheral part helix of screw piston and inner peripheral portion helix is oppositely oriented；The
In two cylinder barrels, the both sides of screw piston be respectively equipped with oil pocket, the second cylinder barrel is equipped with the hydraulic fluid port for being respectively communicated with both sides oil pocket；
It is connected by spline drived between the blind hole hole wall circumference and otating drive rod peripheral part of telescopic piston rod so that rotation passes
The rotation of lever can drive telescopic piston rod to rotate, and telescopic piston rod can be axially moved relative to otating drive rod along itself.
2. rotary extension combined oil cylinder according to claim 1, characterized in that the first cylinder barrel deviates from one end of the second cylinder barrel
Equipped with guide sleeve, guide sleeve center is equipped with the pilot hole passed through for telescopic piston rod.
3. rotary extension combined oil cylinder according to claim 2, characterized in that guide sleeve is slidably and sealingly connected with telescopic piston
The peripheral part of bar.
4. rotary extension combined oil cylinder according to claim 1, characterized in that the inner peripheral portion of the second cylinder barrel is also coaxial fixed
There are screw-casing, screw-casing inner peripheral portion to be equipped with screw thread, screw piston is threadedly coupled the second cylinder barrel by screw-casing.
5. rotary extension combined oil cylinder according to claim 1, characterized in that screw piston inner peripheral portion passes through helical tooth spiral shell
Connect the peripheral part of otating drive rod.
6. rotary extension combined oil cylinder according to claim 1, characterized in that one end of the second cylinder barrel the first cylinder barrel of direction
Inner peripheral portion is equipped with spirally-guided set, and spirally-guided covers rotary seal and connects otating drive rod peripheral part.
7. rotary extension combined oil cylinder according to claim 6, characterized in that the first cylinder barrel and the second cylinder barrel are integrated into
Type.
8. rotary extension combined oil cylinder according to claim 1, characterized in that otating drive rod peripheral part set there are one with
Upper external splines, the blind hole circumference in telescopic piston rod are equipped with the keyway being adapted with each external splines, and each keyway is in telescopic piston rod
Length direction extends.
9. rotary extension combined oil cylinder according to claim 1, characterized in that blind hole hole wall is circumferentially with multiple be parallel to
The external splines of blind hole axial direction, otating drive rod peripheral part are equipped with the keyway being adapted with each external splines.
10. rotary extension combined oil cylinder according to claim 1, characterized in that the top of otating drive rod and blind hole bottom
Buffer gap is equipped between portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306820.1A CN108302083A (en) | 2018-04-08 | 2018-04-08 | A kind of rotary extension combined oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306820.1A CN108302083A (en) | 2018-04-08 | 2018-04-08 | A kind of rotary extension combined oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302083A true CN108302083A (en) | 2018-07-20 |
Family
ID=62847067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810306820.1A Pending CN108302083A (en) | 2018-04-08 | 2018-04-08 | A kind of rotary extension combined oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302083A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026892A (en) * | 2018-08-16 | 2018-12-18 | 昆山德胜荣智能科技有限公司 | A kind of rotation and lifting cylinder |
| CN112727850A (en) * | 2020-12-31 | 2021-04-30 | 兰州理工大学 | Telescopic rotary hydraulic cylinder |
| CN113791085A (en) * | 2021-08-26 | 2021-12-14 | 武汉盛为芯科技有限公司 | Supporting table with automatically adjustable inclination angle and laser chip detection device |
| CN113972784A (en) * | 2021-11-08 | 2022-01-25 | 西安方元明鑫精密机电制造有限公司 | Multistage electric cylinder structure with single lead screw pair driving multiple lead screw nuts |
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|---|---|---|---|---|
| SU646104A1 (en) * | 1976-09-15 | 1979-02-05 | Криворожский Филиал Всесоюзного Научно-Исследовательского Института Организации И Механизации Шахтного Строительства | Hydraulic cylinder |
| CN105041758A (en) * | 2015-08-14 | 2015-11-11 | 中国船舶重工集团公司第七一九研究所 | Integrated hydraulic cylinder with functions of rotating and telescoping |
| CN105443498A (en) * | 2015-12-30 | 2016-03-30 | 山东科技大学 | Integrated hydraulic cylinder with extension and swing functions and application thereof |
| CN208089659U (en) * | 2018-04-08 | 2018-11-13 | 徐工集团工程机械有限公司 | A kind of rotary extension combined oil cylinder |
-
2018
- 2018-04-08 CN CN201810306820.1A patent/CN108302083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU646104A1 (en) * | 1976-09-15 | 1979-02-05 | Криворожский Филиал Всесоюзного Научно-Исследовательского Института Организации И Механизации Шахтного Строительства | Hydraulic cylinder |
| CN105041758A (en) * | 2015-08-14 | 2015-11-11 | 中国船舶重工集团公司第七一九研究所 | Integrated hydraulic cylinder with functions of rotating and telescoping |
| CN105443498A (en) * | 2015-12-30 | 2016-03-30 | 山东科技大学 | Integrated hydraulic cylinder with extension and swing functions and application thereof |
| CN208089659U (en) * | 2018-04-08 | 2018-11-13 | 徐工集团工程机械有限公司 | A kind of rotary extension combined oil cylinder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026892A (en) * | 2018-08-16 | 2018-12-18 | 昆山德胜荣智能科技有限公司 | A kind of rotation and lifting cylinder |
| CN112727850A (en) * | 2020-12-31 | 2021-04-30 | 兰州理工大学 | Telescopic rotary hydraulic cylinder |
| CN113791085A (en) * | 2021-08-26 | 2021-12-14 | 武汉盛为芯科技有限公司 | Supporting table with automatically adjustable inclination angle and laser chip detection device |
| CN113791085B (en) * | 2021-08-26 | 2024-06-04 | 武汉盛为芯科技有限公司 | Supporting table with automatically adjustable inclination angle and laser chip detection device |
| CN113972784A (en) * | 2021-11-08 | 2022-01-25 | 西安方元明鑫精密机电制造有限公司 | Multistage electric cylinder structure with single lead screw pair driving multiple lead screw nuts |
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