CN201170227Y - Hydraulic device capable of implementing center drive rotary - Google Patents
Hydraulic device capable of implementing center drive rotary Download PDFInfo
- Publication number
- CN201170227Y CN201170227Y CNU2008200741969U CN200820074196U CN201170227Y CN 201170227 Y CN201170227 Y CN 201170227Y CN U2008200741969 U CNU2008200741969 U CN U2008200741969U CN 200820074196 U CN200820074196 U CN 200820074196U CN 201170227 Y CN201170227 Y CN 201170227Y
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- piston rod
- central shaft
- hydraulic cylinder
- end cap
- driven
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- 238000009434 installation Methods 0.000 claims description 24
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
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Abstract
The utility model relates to a hydraulic device capable of achieving the rotation of a center drive, which comprises a hydraulic cylinder and a piston rod. The innovation points are that the piston rod is a hollow sleeve, wherein, a central shaft is arranged in the piston rod and rotates coaxially; the central shaft is arranged at the extended end of the piston rod and is extended out of the piston rod, while the other end of the central shaft is extended out of the exterior of the end cover of the hydraulic cylinder. The structural design of the hydraulic device is scientific and reasonable, the structure is ingenious and compact, the operation is stable and reliable, and the hydraulic device is capable of achieving perfect integration of the axial extension of the piston rod of the oil cylinder and the rotation of the central shaft, the energy consumption is low, and the application range is wide, thereby the hydraulic device is a hydraulic device capable of achieving the rotation of the center drive and with high better innovative characteristics.
Description
Technical field
The utility model belongs to the hydraulic pressure installation field, particularly a kind of rotating hydraulic pressure installation of centre-driven of realizing.
Background technique
Hydraulic pressure installation is a kind of application power plant very widely, its basic structure is: be made of hydraulic cylinder and piston rod, the chamber of the hydraulic cylinder formation oil hydraulic circuit that is connected with the pipeline of delivery hydraulic pressure oil respectively, by stretching out and withdrawal of this oil hydraulic circuit drive cylinder bar, drive the motion of the mechanical part that links to each other with the cylinder bar thus.Existing hydraulic pressure installation mostly is the axial stretching that only can realize the cylinder bar greatly, therefore also only can realize the straight line motion of tie point to the mechanical part that links to each other with the cylinder bar.If the hydraulic pressure installation of this kind structure is wanted to realize that institute's driving device component axial is flexible and is circumferentially rotatingly carried out synchronously, then need to dispose complicated device for revolving and driving, hydraulic pressure installation and mechanical part are done the as a whole driving of turning round, this not only causes the raising of equipment complexity, cause bulky, energy consumption is high, and the stability that gets into smooth is not good enough yet.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of delicate structure compactness is provided, and running steadily can realize the rotating hydraulic pressure installation of centre-driven reliably.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of rotating hydraulic pressure installation of centre-driven of realizing, constitute by hydraulic cylinder and piston rod, it is characterized in that: piston rod is a hollow sleeve form, coaxial rotation is coated with a central shaft in this piston rod, this central shaft is positioned at the end of piston rod external part and stretches out the piston rod outside, and the other end of central shaft extend out to the end cap outside of hydraulic cylinder.
And described central shaft extend out to an end of hydraulic cylinder end cap outside and motor output shaft interlock and by its driving rotational.
And the end that described central shaft extend out to hydraulic cylinder end cap outside is provided with tapered roller bearing, this tapered roller bearing be arranged at one with bearing box that the hydraulic cylinder end cap installs mutually in.
And described central shaft and hydraulic cylinder end cap adjacent are provided with pillow block, are provided with pressure bearing between this pillow block and hydraulic cylinder end cap.
And described hydraulic cylinder end cap and central shaft touching position are embedded with radial direction seal ring.
And described central shaft is provided with oil-impregnated bearing between end periphery wall of piston rod external part and piston rod sleeve inwall.
And end inwall and central shaft touching position that described piston rod is positioned at hydraulic cylinder are embedded with radial direction seal ring.
Advantage of the present utility model and good effect are:
1. this hydraulic pressure installation rotates a central shaft and is arranged at telescopic piston rod inside, this central shaft can be turned round by motor driving, the revolution of central shaft can drive coupled mechanical part and turn round, with the mechanical part interoperation that piston rod is driven, the cooperation of realization axial stretching and revolution action reaches to be carried out synchronously.
2. this hydraulic pressure installation adopts the form that central shaft is arranged at piston rod inside, simplified greatly on the structure, thus the purpose that reaches compact structure, saves the space.
3. this hydraulic pressure installation spigot shaft coaxle is threaded onto piston rod inside, and both have splendid coaxality, and is more stable when finishing the cooperating of revolution action and expanding-contracting action.
4. the two end part of this hydraulic pressure installation central shaft are provided with bearing, and further the assurance device overall operation is steadily reliable.
5. the inwall and the central shaft touching position of piston one end of this hydraulic pressure installation cylinder barrel end cap and central shaft touching position and piston rod all are embedded with radial direction seal ring, the high-seal of assurance device in operation process, the effectively normal use of assurance device.
6. the utility model scientific structure design is reasonable, the delicate structure compactness, and running is steadily reliable, can realize the axial stretching of oil cylinder piston bar and the perfect adaptation that central shaft rotates, Applicable scope is extensive, and energy consumption is low, is a kind of rotating hydraulic pressure installation of realized centre-driven with preferable novelty.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of rotating hydraulic pressure installation of centre-driven of realizing is made of hydraulic cylinder 8 and piston rod 10, and the hydraulic cylinder two ends are equipped with end cap 5,12, adopts symmetrically arranged cylinder lever connecting rod 7 to be connected between the two end cap and installs.Be provided with left oil port 6 and the right oil port 11 that communicates with two cavitys respectively at the two end part of cylinder barrel.Its innovative point is: piston rod is a hollow sleeve form, coaxial rotation is coated with a central shaft 9 in this piston rod, this central shaft is positioned at the end of piston rod external part and stretches out the piston rod outside, the other end of central shaft extend out to relative end cap outside, and central shaft extend out to an end of end cap outside can be with the interlock of the output shaft of motor (not shown) and by its driving rotational.The end that central shaft extend out to the end cap outside is provided with tapered roller bearing 1, this tapered roller bearing be arranged at one with bearing box 2 that end cap installs mutually in, central shaft and end cap adjacent are provided with pillow block 3, are provided with pressure bearing 4 between this pillow block and cylinder barrel end cap.End cap and central shaft touching position are embedded with radial direction seal ring 17, and central shaft is provided with oil-impregnated bearing 15 between end periphery wall of piston rod external part and piston rod sleeve inwall.End inwall and central shaft touching position that piston rod is positioned at hydraulic cylinder are embedded with radial direction seal ring 16.The end cap of piston rod external part installs supporting case 13 outward, is provided with oil-impregnated bearing 14 between this supporting case and the piston rod outer wall.The central shaft of this hydraulic pressure installation can drive coupled mechanical part and realize turning round action, and with the mechanical part interoperation that piston rod is driven, the cooperation of realization axial stretching and revolution action reaches to be carried out synchronously, has compact structure, volume is small and exquisite, and running is steadily reliable, low power consumption and other advantages.
Claims (7)
1. can realize the rotating hydraulic pressure installation of centre-driven for one kind, constitute by hydraulic cylinder and piston rod, it is characterized in that: piston rod is a hollow sleeve form, coaxial rotation is coated with a central shaft in this piston rod, this central shaft is positioned at the end of piston rod external part and stretches out the piston rod outside, and the other end of central shaft extend out to the end cap outside of hydraulic cylinder.
2. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 1 is characterized in that: described central shaft extend out to an end of hydraulic cylinder end cap outside and motor output shaft interlock and by its driving rotational.
3. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 1, it is characterized in that: the end that described central shaft extend out to hydraulic cylinder end cap outside is provided with tapered roller bearing, this tapered roller bearing be arranged at one with bearing box that the hydraulic cylinder end cap installs mutually in.
4. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 3 is characterized in that: described central shaft and hydraulic cylinder end cap adjacent are provided with pillow block, are provided with pressure bearing between this pillow block and hydraulic cylinder end cap.
5. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 1, it is characterized in that: described hydraulic cylinder end cap and central shaft touching position are embedded with radial direction seal ring.
6. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 1 is characterized in that: described central shaft is provided with oil-impregnated bearing between end periphery wall of piston rod external part and piston rod sleeve inwall.
7. the rotating hydraulic pressure installation of centre-driven of realizing according to claim 1 is characterized in that: end inwall and central shaft touching position that described piston rod is positioned at hydraulic cylinder are embedded with radial direction seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200741969U CN201170227Y (en) | 2008-03-27 | 2008-03-27 | Hydraulic device capable of implementing center drive rotary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200741969U CN201170227Y (en) | 2008-03-27 | 2008-03-27 | Hydraulic device capable of implementing center drive rotary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170227Y true CN201170227Y (en) | 2008-12-24 |
Family
ID=40209280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200741969U Expired - Fee Related CN201170227Y (en) | 2008-03-27 | 2008-03-27 | Hydraulic device capable of implementing center drive rotary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170227Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084954A (en) * | 2014-07-09 | 2014-10-08 | 苏州晓炎自动化设备有限公司 | Mechanical hand cylinder base mechanism |
| CN107690529A (en) * | 2015-06-11 | 2018-02-13 | Smc株式会社 | Fluid pressure cylinder |
| US10612570B2 (en) | 2015-06-11 | 2020-04-07 | Smc Corporation | Fluid pressure cylinder |
| US10662981B2 (en) | 2015-06-11 | 2020-05-26 | Smc Corporation | Fluid pressure cylinder |
| US10662982B2 (en) | 2015-06-11 | 2020-05-26 | Smc Corporation | Fluid pressure cylinder |
| US10670053B2 (en) | 2015-06-11 | 2020-06-02 | Smc Corporation | Fluid pressure cylinder |
| US10677270B2 (en) | 2015-06-11 | 2020-06-09 | Smc Corporation | Fluid pressure cylinder |
| CN115822841A (en) * | 2022-11-08 | 2023-03-21 | 宜昌测试技术研究所 | Turbine energy capturing hydraulic variable pitch mechanism |
-
2008
- 2008-03-27 CN CNU2008200741969U patent/CN201170227Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084954A (en) * | 2014-07-09 | 2014-10-08 | 苏州晓炎自动化设备有限公司 | Mechanical hand cylinder base mechanism |
| CN107690529A (en) * | 2015-06-11 | 2018-02-13 | Smc株式会社 | Fluid pressure cylinder |
| CN107690529B (en) * | 2015-06-11 | 2020-01-14 | Smc株式会社 | Fluid pressure cylinder |
| US10605275B2 (en) | 2015-06-11 | 2020-03-31 | Smc Corporation | Fluid pressure cylinder |
| US10612570B2 (en) | 2015-06-11 | 2020-04-07 | Smc Corporation | Fluid pressure cylinder |
| US10662981B2 (en) | 2015-06-11 | 2020-05-26 | Smc Corporation | Fluid pressure cylinder |
| US10662982B2 (en) | 2015-06-11 | 2020-05-26 | Smc Corporation | Fluid pressure cylinder |
| US10670053B2 (en) | 2015-06-11 | 2020-06-02 | Smc Corporation | Fluid pressure cylinder |
| US10677270B2 (en) | 2015-06-11 | 2020-06-09 | Smc Corporation | Fluid pressure cylinder |
| CN115822841A (en) * | 2022-11-08 | 2023-03-21 | 宜昌测试技术研究所 | Turbine energy capturing hydraulic variable pitch mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20130327 |