CN201144903Y - Mechanical synchronous hydraulic actuation system - Google Patents
Mechanical synchronous hydraulic actuation system Download PDFInfo
- Publication number
- CN201144903Y CN201144903Y CNU2007200163146U CN200720016314U CN201144903Y CN 201144903 Y CN201144903 Y CN 201144903Y CN U2007200163146 U CNU2007200163146 U CN U2007200163146U CN 200720016314 U CN200720016314 U CN 200720016314U CN 201144903 Y CN201144903 Y CN 201144903Y
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- CN
- China
- Prior art keywords
- mechanical synchronous
- hydraulic pressure
- moving system
- synchronous hydraulic
- pressure moving
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- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a mechanical synchronous hydraulic actuation system, consisting of actuating cylinders 10, a hydraulic tube 20 and flexible shafts 30, wherein, the actuating cylinders 10 are connected by the flexible shafts 30 to form the mechanical synchronous hydraulic actuation system. The mechanical synchronous hydraulic actuation system is characterized in that each actuating cylinder 10 is a hydraulic actuating cylinder 10 for outputting the angle displacement and the torque and comprises a cylinder body 1 and a piston 2, the cylinder body 1 has no rod and a cavity of the cylinder body is provided with a housing 8 outside, the inside of an inner hole of the head of the piston 2 inside the housing 8 is provided with a master screw 4 which is engaged with teeth of a rod of the piston 2 to be fixed together, and the inside of the housing 8 is provided with a pair of bearings 5 for supporting a screw rod 3 which is connected with a transmission mechanism 6 and outputs the angle displacement and the torque. The mechanical synchronous hydraulic actuation system has the advantages that the synchronous accuracy is high and is up to 0.5 millimeter, a throttling nozzle is not needed, the moving speed of a nozzle can satisfy the requirement of an electrically controlled system, and the number of the hydraulic actuating cylinders is small.
Description
Technical field
The utility model relates to the mechanical synchronous hydraulic pressure moving system structure.
Background technique
The hydraulic actuation system that traditional engine jet pipe is used, for guaranteeing the synchronism between each pressurized strut, generally on the oil circuit of the oil inlet and oil return of each pressurized strut, the Hydraulic Synchronizing valve is installed, by adjusting the synchronizing characteristics that flow nipple in the synchronous valve and spring are adjusted each pressurized strut, make whole hydraulic actuation system reach the synchronism requirement, but the control accuracy of this mode generally has only 5～10mm, and the movement velocity of spout is not suitable for the requirement of electric operation dispatching system; Another mode is the pressurized strut of design and adjustment sheet number equivalent number, each pressurized strut and adjacent two adjustment sheets are linked together, interaction by mechanical linkage, thereby the synchronous interaction between the realization pressurized strut, though the control accuracy of this mode increases, but the pressurized strut One's name is legion, mechanism's complexity.
Summary of the invention
The purpose of this utility model is to provide a kind of novel mechanical synchronous hydraulic actuating system, and the synchronism precision of its hydraulic system reaches in the 0.5mm scope, and pressurized strut negligible amounts in the hydraulic actuation system.
The utility model provides a kind of mechanical synchronous hydraulic pressure moving system, by pressurized strut 10, hydraulic tube 20 and flexible axle 30 constitute, connect by flexible axle 30 between the pressurized strut 10, form mechanical synchronous hydraulic pressure moving system, it is characterized in that: pressurized strut 10 is hydraulic actuators 10 of angle displacement and moment of torsion, comprise cylindrical shell 1 and piston 2, cylindrical shell 1 rodless cavity has housing 8 outward, in 2 endoporus of 8 li pistons of housing screw 4 is installed, screw 4 is meshed with the profile of tooth of piston 2 bars and is fixed together, pair of bearings 5 is housed in housing 8, and it is supporting leading screw 3, and leading screw 3 is connected with transmission device 6 and angle displacement and moment of torsion.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, its transmission device 6 can be a worm couple, worm gear and leading screw 3 are fixed together.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, its transmission device 6 can be the umbrella gear pair.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, the tooth form of its leading screw 3 can be trapezoidal thread.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, the number of starts of its leading screw 3 can be 1～6.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, the number of starts of the worm screw of its transmission device 6 can be 1～6.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, its flexible axle 30 is installed in the hydraulic tube 20, to reduce seal arrangement.
The mechanical synchronous hydraulic pressure moving system that the utility model provides, its advantage is: its hydraulic actuation system synchronization accuracy height, synchronization accuracy can reach 0.5mm, and without flow nipple, the movement velocity of spout can satisfy the electric operation dispatching system requirement, and the hydraulic actuator negligible amounts.
Description of drawings
Fig. 1 is the structural representation of mechanical synchronous hydraulic pressure moving system;
Fig. 2 is the structural representation of the hydraulic actuator of angle displacement and moment of torsion.
Embodiment
Embodiment 1
Novel mechanical synchronous hydraulic actuating system as shown in Figure 1, is made of pressurized strut 10, hydraulic tube 20, flexible axle 30, and 3 pressurized struts 10 connect by the flexible axle 30 that is contained in the hydraulic tube 20.
Pressurized strut 10, its structure as shown in Figure 2, its cylindrical shell 1 inner chamber has been divided into rod chamber and rodless cavity by piston 2, under normal circumstances rod chamber pressure is higher than rodless cavity pressure.Be processed with the two seals groove on 2 in piston, an O-ring seal is housed in each groove, two fluoroplastic back-up rings are so that the sealing of left and right two chambeies.In 2 endoporus of piston screw 4 is installed, screw 4 is meshed with the profile of tooth of piston 2 bars and is fixed together with nut, makes it can not relatively rotate.
A pair of radial thrust bearing 5 is housed in housing 8, and it is supporting leading screw 3, and leading screw 3 can rotatablely move freely around axis, and can not do moving of axial direction.Be processed with keyway at leading screw 3 left ends, be used for installing woodruff key, the worm gear of transmission device 6 and leading screw 3 are fixed together and transmitting torque.When assembling, leading screw 3 is screwed in the screw 4, and leading screw 3 is meshed with screw 4 and has formed a pair of transmission.Because screw 4 is to be fixed in 2 in the piston, so when piston 2 initiatively moves as axial direction, and leading screw 3 inevitable being with by screw 4 are rotated; Otherwise when leading screw 3 initiatively rotated, then leading screw 3 must be with piston 2 to move axially.The tooth form of leading screw 3 is a trapezoidal thread, has big lead angle, and number of starts is 4, therefore this to transmission in, when piston 2 initiatively moves axially, can transmit bigger asynchronous power between leading screw 3, the screw 4, and higher transmission efficiency is arranged.
Transmission device 6 worm gears are meshed with worm screw and form a pair of transmission, and the displacement amount of the relative worm axis of worm gear central plane is adjusted with packing ring.Worm screw both can be driving link and had driven the worm gear rotation during work, also can be Passive part and its rotation by the worm gear band.Because worm screw has been selected 5 statures, lead angle is up to 26 ° 33 ' 54 ", worm gear 6 numbers of teeth are 26, its velocity ratio is 5.2, therefore high transmission efficiency is arranged in this a pair of kinematic pair and locking phenomenon can not occur.
During hydraulic actuation system work: when being connected with hydraulic oil in the hydraulic tube 20, piston rod in the pressurized strut 10 begins to move forward and backward under the effect of oil supply pressure, in the process that piston rod moves forward and backward, mechanical synchronizer in the pressurized strut 10 is converted into angular displacement with the straight-line displacement of piston rod, by the flexible axle 30 in the hydraulic tube 20, the angular displacement that mechanical synchronizer in the pressurized strut 10 is transformed is delivered in the another one pressurized strut 10, again by the mechanical synchronizer in the pressurized strut 10, the angular displacement that flexible axle 30 is passed over is converted into the linear displacement of pressurized strut 10 inner piston rods, like this, by 3 pressurized struts 10, the mechanical synchronous hydraulic pressure moving system that hydraulic tube 20 and flexible axle 30 are formed interacts, and forms mechanical synchronous hydraulic pressure moving system.
Embodiment 2
Novel mechanical synchronous hydraulic actuating system as shown in Figure 1, is made of pressurized strut 10, hydraulic tube 20, flexible axle 30, and 3 pressurized struts 10 connect by the flexible axle 30 that is contained in the hydraulic tube 20.
Pressurized strut 10, its structure are referring to Fig. 2, and its cylindrical shell 1 inner chamber has been divided into rod chamber and rodless cavity by piston 2, and under normal circumstances rod chamber pressure is higher than rodless cavity pressure.Be processed with the two seals groove on 2 in piston, an O-ring seal is housed in each groove, two fluoroplastic back-up rings are so that the sealing of left and right two chambeies.In 2 endoporus of piston screw 4 is installed, screw 4 is meshed with the profile of tooth of piston 2 bars and is fixed together with nut, makes it can not relatively rotate.
A pair of radial thrust bearing 5 is housed in housing 8, and it is supporting leading screw 3, and leading screw 3 can rotatablely move freely around axis, and can not do moving of axial direction.Be processed with keyway at leading screw 3 left ends, be used for installing woodruff key, the umbrella gear of transmission device 6 and leading screw 3 are fixed together and transmitting torque.When assembling, leading screw 3 is screwed in the screw 4, and leading screw 3 is meshed with screw 4 and has formed a pair of transmission.Because screw 4 is to be fixed in 2 in the piston, so when piston 2 initiatively moves as axial direction, and leading screw 3 inevitable being with by screw 4 are rotated; Otherwise when leading screw 3 initiatively rotated, then leading screw 3 must be with piston 2 to move axially.The tooth form of leading screw 3 is a trapezoidal thread, has big lead angle, and number of starts is 4, therefore this to transmission in, when piston 2 initiatively moves axially, can transmit bigger asynchronous power between leading screw 3, the screw 4, and higher transmission efficiency is arranged.
Claims (10)
1, a kind of mechanical synchronous hydraulic pressure moving system, by pressurized strut (10), hydraulic tube (20) and flexible axle (30) constitute, connect by flexible axle (30) between the pressurized strut (10), form mechanical synchronous hydraulic pressure moving system, it is characterized in that: pressurized strut (10) is the hydraulic actuator of angle displacement and moment of torsion, comprise cylindrical shell (1) and piston (2), cylindrical shell (1) rodless cavity has housing (8) outward, in housing (8) lining piston (2) endoporus screw (4) is installed, screw (4) is meshed with the profile of tooth of piston (2) bar and is fixed together, pair of bearings (5) is housed in housing (8), and it is supporting leading screw (3), and leading screw (3) is connected with transmission device (6) and exports.
2, according to the described mechanical synchronous hydraulic pressure moving system of claim 1, it is characterized in that: described transmission device (6) is a worm couple, and worm gear and leading screw (3) are fixed together.
3, according to the described mechanical synchronous hydraulic pressure moving system of claim 1, it is characterized in that: described transmission device (6) is the umbrella gear pair.
4, according to the described mechanical synchronous hydraulic pressure moving system of claim 1, it is characterized in that: the tooth form of described leading screw (3) is a trapezoidal thread.
5, according to the described mechanical synchronous hydraulic pressure moving system of one of claim 1～4, it is characterized in that: the number of starts of described leading screw (3) is 1～6.
6, according to the described mechanical synchronous hydraulic pressure moving system of claim 2, it is characterized in that: the number of starts of the worm screw of described transmission device (6) is 1～6.
7, according to the described mechanical synchronous hydraulic pressure moving system of claim 5, it is characterized in that: the number of starts of the worm screw of described transmission device (6) is 1～6.
8, according to the described mechanical synchronous hydraulic pressure moving system of one of claim 1～4, it is characterized in that: described flexible axle (30) is installed in the hydraulic tube (20).
9, according to the described mechanical synchronous hydraulic pressure moving system of claim 5, it is characterized in that: described flexible axle (30) is installed in the hydraulic tube (20).
10, according to the described mechanical synchronous hydraulic pressure moving system of claim 6, it is characterized in that: described flexible axle (30) is installed in the hydraulic tube (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200163146U CN201144903Y (en) | 2007-11-30 | 2007-11-30 | Mechanical synchronous hydraulic actuation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200163146U CN201144903Y (en) | 2007-11-30 | 2007-11-30 | Mechanical synchronous hydraulic actuation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144903Y true CN201144903Y (en) | 2008-11-05 |
Family
ID=40081780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200163146U Expired - Lifetime CN201144903Y (en) | 2007-11-30 | 2007-11-30 | Mechanical synchronous hydraulic actuation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144903Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451553B (en) * | 2007-11-30 | 2011-11-16 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Mechanical synchronous hydraulic pressure moving system |
| CN114135541A (en) * | 2021-11-05 | 2022-03-04 | 中国航发沈阳发动机研究所 | Synchronous displacement connection structure of actuating cylinder |
-
2007
- 2007-11-30 CN CNU2007200163146U patent/CN201144903Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451553B (en) * | 2007-11-30 | 2011-11-16 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Mechanical synchronous hydraulic pressure moving system |
| CN114135541A (en) * | 2021-11-05 | 2022-03-04 | 中国航发沈阳发动机研究所 | Synchronous displacement connection structure of actuating cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081105 Effective date of abandoning: 20071130 |