Power minidrive of movable aerofoil of aircraft

FIELD: electricity.

SUBSTANCE: power minidrive comprises casing (1), inside of which there is an open-frame electric motor arranged coaxially along longitudinal axis, comprising stator (2) and rotor (3) fixed on shaft (4). There is a wave gear with solids of revolution, either single-stage, where only output stage (18) is used, or multi-stage, where output stage (18) is used, as well as intermediate stage (10). Position sensor consists of stator (28) and rotor (29) installed on output link (19) of wave gear. On end surface of output link (19) of single- or multi-stage wave gear with solids of revolution there is a bushing (25) fixed eccentrically to longitudinal axis with traction rod (35). Traction rod (35) has eyes at the ends, one of which is placed onto bushing (25) with the possibility of rotation around axis of bush, and the second one is intended for fixation to fixed part (32) of aircraft. Body (1) is equipped with element (34) of fixation to movable aerofoil (31) so that longitudinal axis is aligned parallel to axis of rotation (33) of movable aerofoil (31) of aircraft.

EFFECT: provision of control of movable aerofoil, axis of rotation of which is arranged outside volume of movable aerofoil and increased reliability of control by redundancy of power minidrives according to principle of forces summation.

2 cl, 5 dwg

 

The invention relates to mechanical engineering and can be used in actuators automatic control systems for aircraft, in particular, the drive of the aerodynamic control surfaces.

Known actuators movable aerodynamic surfaces using hydraulic or electrical energy [1, 2]. These drives contain the output link, making forward movement. Redundant hydraulic actuators are coupled cylinders with a common stem [1], redundant Electromechanical actuators are reserved electric motors, which movement by means of the differential gear and the intermediate gear is transmitted to shareavenue transmission, which is not backed-up [2].

The disadvantage of these actuators is that actuators actuators occupy a large volume in the fixed part of the aircraft (e.g., wing keel, the fixed stabilizer), and the axis of the output link of these drives (rod hydraulic cylinder, screw ball screw transmission) is situated on the crossing relative to the axis of rotation of the movable aerodynamic surfaces, it is impossible to place actuators these actuators inside the movable aerodynamic surfaces. In addition, in the known Electromechanical actuators reserved the e is based on the principle of addition of velocities, not effort, as in a hydraulic drive.

Known Electromechanical power mini-drive (patent RF №2321138 [3] - prototype) with the rotational movement of the output link, consisting of a stator and rotor open frame electric motor, position sensor output link drive, output, and intermediate wave speed transmission with rolling elements, each of which consists of a disk volnoobrazovaniya, separator with several rows of nests, which are rolling elements, and a rigid wheel having on the inner cylindrical surface of a special profile. While separators, hard wheels and volnoobrazovaniye stages of wave transmission, the stator and the rotor of the electric motor, the elements of the position sensor output link of the drive are concentric relative to the longitudinal axis of the actuator. The design of such power mini-drive allows you to place it inside of the movable aerodynamic surfaces.

The disadvantage of the prototype is limited to its use, since the rotational movement of the output link power mini-drive allows you to use it to reject only those movable aerodynamic surfaces, the axis of rotation of which coincides with the longitudinal axis of the power of the mini-drive. Such power mini drive is not possible, is about to be used for control of the movable aerodynamic surface, the axis of rotation which is parallel to the longitudinal axis of the power of the mini-drive and is outside the scope of the movable aerodynamic surfaces. In addition, the known power mini drive cannot be made redundant, because when using multiple power mini-actuators placed on the same axis, the failure of the electric motor of one of the power mini-drives incapacitate the management of movable aerodynamic surface.

The purpose of the invention - creation power of the mini-actuator providing management of movable aerodynamic surface, the axis of rotation of which is outside the scope of the movable aerodynamic surfaces, as well as to improve the reliability of control of the movable aerodynamic surface due to backup power mini-drives on the principle of combining the efforts.

The purpose of the invention is achieved by the fact that the power of the mini-actuator movable aerodynamic surfaces of the aircraft, comprising a housing, within which is coaxially along the longitudinal axis of the power of the mini-actuator posted a frameless electric motor consisting of a stator and a rotor mounted on the shaft, one or more stages of the wave gear with rolling elements and the position sensor output link single or multi-wave transmission with rolling bodies, provided with a sleeve, closed the captive on the end surface of the output link single or multi-wave transmission with rolling bodies eccentric relative to the longitudinal axis of the power of the mini-actuator, and thrust with eyelets at the ends, one of which is worn on the sleeve for rotation around the axis of the sleeve, and the second is designed for attachment to a fixed part of the aircraft, in this case the power of the mini-actuator is equipped with a fastening element to the movable aerodynamic surfaces so that the longitudinal axis of the power of the mini-actuator is oriented parallel to the axis of rotation of the movable aerodynamic surfaces of the aircraft, and between the rotor shaft and the driving member of one or more stages of wave transmission by rolling elements installed electromagnetic clutch.

Thus, the supply of output link power mini drive sleeve located eccentric with respect to its longitudinal axis, and the provision of fastening elements parallelism to the longitudinal axis of the power of the mini-actuator axis of rotation of the movable aerodynamic surfaces is achieved by control of the surface at the location of its axis of rotation is outside the scope of the movable aerodynamic surfaces. In addition, the introduction of magnetic coupling in this way increases the reliability of the control of the movable aerodynamic surface due to the possibility of power mini-drives in redundant systems.

Figure 1 shows a longitudinal section of the power mini when the ode with an electromagnetic clutch.

Figure 2 shows the kinematic diagram of the connections of the power of the mini-actuator with movable aerodynamic surface and a fixed part of the aircraft (wing) in the neutral position of the movable aerodynamic surfaces.

Figure 3 shows the kinematic diagram of the connections of the power of the mini-actuator with movable aerodynamic surface and a fixed part of the aircraft (wing) when rejected up to the maximum angle position of the movable aerodynamic surfaces.

Figure 4 shows the kinematic diagram of the connections of the power of the mini-actuator with movable aerodynamic surface and a fixed part of the aircraft (wing) at deflected down to the maximum angle position of the movable aerodynamic surfaces.

Figure 5 shows the placement of multiple redundant power mini drives inside the movable aerodynamic surfaces (thrust conventionally rotated by 90°).

Power mini-actuator movable aerodynamic surface includes a housing 1, an electric motor, two-speed wave transmission with rolling bodies, the position sensor output link of wave transmission by rolling elements (see figure 1). In addition, power mini-actuator movable aerodynamic surfaces equipped with an electromagnetic clutch disposed between the electric is their engine and wave transmission from the rolling elements.

The electric motor is made planar and consists of a stator 2, rotor 3, and is rigidly fixed to the rotor 3 of the shaft 4 of the electric motor. The shaft 4 of the electric motor is based relative to the housing 1 by means of bearings 5. The magnetic clutch comprises a driving element 6 mounted on the shaft 4 of the electric motor, the control winding 7, the rolling disk 8 and the driven link 9.

An intermediate degree wave transmission with rolling element contains the disk volnoobrazovaniye, hard wheel 10 with the inner profiled surface, which is the output level of the intermediate wave speed transmission with rolling elements, the cage 11, fixed to the housing 1 and having several rows of sockets, which are rolling elements 12. Disk volnoobrazovaniye intermediate degree wave transmission with rolling elements consists of eccentrics 13, a bearing 14 and the disks 15, while the eccentric 13 is stationary relative to the driven link 9 electromagnetic clutch, with which by means of bearings 16 and 17 are relatively fixed elements of the drive.

The output stage of the wave gear with rolling element contains the disk volnoobrazovaniye, hard wheel 18 with the inner profiled surface fixedly attached to the housing 1, separ the tor 19, having several rows of sockets, which are rolling elements 20. Disk volnoobrazovaniye output stage of wave transmission by rolling elements consists of eccentrics 21, the bearings 22 and disk 23, while the eccentric 21 is stationary relative to the rigid wheel 10 intermediate stage of wave transmission by rolling bodies, with which by means of bearings 24 are relatively fixed elements of the actuator. At the end of the separator 19, which is the output element of the actuator, fixed eccentric bushing 25. The separator 19 is based relative to stationary elements of the actuator by means of bearings 26 and 27.

The position sensor output link of wave transmission by rolling elements includes a stator 28 with windings and a rotor 29, and the stator 28 fixed to the stationary elements of the actuator, the rotor 29 is attached to the separator 19.

In the case of the power of the mini-drive fixed electrical connector 30, the contacts of which are connected with the windings of the electric motor, electromagnetic clutch and the position sensor output link of wave transmission by the rolling elements.

Movable aerodynamic surface 31 is fixed to the fixed part of the aircraft (e.g. wing) 32 with the possibility of angular deflection about the axis 33 (see figure 2, 3, 4, 5). Case 1 power mini hard drive anchor is to the movable aerodynamic surfaces 31 by means of fastening elements 34 so that that the longitudinal axis of the power of the mini-actuator is oriented parallel to the axis 33 of rotation of the movable aerodynamic surfaces 31.

Rod 35 is at the ends of the lugs, one of which is attached to the eccentric sleeve 25 rotatably about its axis, and the ring on the other end of the traction bar 35 is connected with a fixed part of the aircraft 32 for rotation about the axis 36 (figure 5 rod 35 is conventionally rotated by 90°).

Power mini-actuator movable aerodynamic surfaces is as follows.

When a voltage is applied to the stator winding 2 of the motor (see figure 1) is driven, the rotor 3 of the electric motor, the shaft 4 of the electric motor and United with him leading link 6 electromagnetic clutch. The current in the control winding 7 of the electromagnetic coupling generates a force that presses the disc 8 to the drive link 6 electromagnetic clutch. The disc 8 transmits the rotation of the leading link 6 to the slave link 9 of the electromagnetic clutch.

Slave link 9 magnetic coupling transmits rotation excentricum 13 intermediate degree wave transmission with rolling bodies. Shifted the axis of the eccentrics 13 and matching the axis of the bearing 14 and the disks 15 do for one revolution of the driven link 9 electromagnetic clutch complete revolution around the longitudinal axis of the power of the mini-drive. Behold arator 11 allows the rolling elements 12 to move only in the radial direction, thus the rolling body 12 under the influence of the movement of the disks 15 starts moving in waves with a period equal to the period of one revolution of the slave link 9 electromagnetic coupling and amplitude equal to the distance between the longitudinal axis of the power of the mini-actuator and the axis of the Cam disc 13. Rolling elements 12, interacting with the inner profiled surface of the hard wheels 10, rotate it by an angle less than the angle of rotation of the driven link 9 of the electromagnetic clutch in the number of times equal to the number of periods of the inner profiled surface of the rigid wheel 10.

Hard wheel 10 transmits the movement of the eccentrics 21 output stage of wave transmission by the rolling elements. Shifted the axis of the eccentrics 21 and matching the axis of the bearings 22 and disk 23 make one revolution of the rigid wheel 10 intermediate degree wave transmission with rolling bodies full rotation around the longitudinal axis of the power of the mini-drive. The separator 19 allows the rolling elements 20 to move in the slots in the radial direction, thus the rolling body 20 under the influence of movement of the disk 23 perform complex movement, which is a combination of the rotational motion of the separator 19 and the wave-like motion along the slots of the separator 19 with amplitude equal to the distance between the longitudinal axis of the power of the mini-actuator and the axis of the eccentric 21. Body quality is of 20, interacting with the inner profiled surface of the rigid wheel 18, turn the separator 19 by an angle less than the angle of rotation of a rigid wheel 10 intermediate degree wave transmission with rolling bodies in the number of times that is one less the number of periods of the inner profiled surface of the rigid wheel 18.

The rotation of the separator 19 causes rotation still associated with the rotor 29 of the position sensor output wave link transmission with the rolling bodies. The voltage signal of the stator winding 28 of the position sensor output link of wave transmission with rolling element contains information about the angle of rotation of the separator 19.

The rotation of the separator 19 rotates relative to the longitudinal axis of the power of the mini-drive eccentric sleeve 25 and the associated thrust 35, which causes the rotation of the housing 1 power mini-actuator with movable aerodynamic surface 31 relative to its rotation axis 33 (see figure 2, 3, 4, 5). In case of installing multiple power mini actuators for controlling one movable aerodynamic surface torque each power mini drive is transmitted through the housing 1 on the movable aerodynamic surface 31 and fold.

Radial load on the eccentric bushing 25 is transmitted to the separator 19 and through the bearings 26 and 27 are transmitted to the body is silt mini-drive.

When installing multiple power mini drives the movable aerodynamic surfaces (for redundancy purposes) in case of failure of one power mini actuators are de-energized the control winding 7 of the electromagnetic clutch, and a moveable disk 8 disconnects the contact with the driving member 6 of the electromagnetic clutch. Thus, the possible failure of the motor prevents free rotation of the driven link 9 of the electromagnetic clutch. The deviation of the movable aerodynamic surfaces 31 using the operating power mini-actuators is transmitted by the thrust of 35 on the eccentric bushing 25 and causes the rotation of the separator 19, the output speed of the wave gear with rolling elements, then in the opposite direction from the separator 19 to the rigid wheel 10 intermediate stage of wave transmission by the rolling elements and the rigid wheel 10 to the slave unit 9 of the electromagnetic clutch. Thus, the failed power mini-actuator movable aerodynamic surfaces does not load operation.

Thus, the proposed power mini drive provides control of the movable aerodynamic surface, the axis of rotation which lies outside the scope of this movable aerodynamic surfaces, due to implemented on the end surface of the output link power mini-drive eccentric relative to the longitudinal the si power mini drive sleeve, to which is rotatably attached rod, while the other end of the thrust provided with fastening elements to the power element of the fixed part of the aircraft, and the case of the power of the mini-actuator is rigidly attached to the power elements of the movable aerodynamic surfaces of the aircraft.

In addition, the proposed power mini-wheel drive improves the reliability of the control of the movable aerodynamic surface by introducing between the shaft of the rotor of the electric motor and the driving member of the wave transmission with the rolling bodies of the electromagnetic clutch, which rosoideae failed engine power mini drive from the wave transmission with rolling elements, allowing the operating power mini-actuators to control the movable aerodynamic surface, while torque each power mini drive is transmitted to the movable aerodynamic surface and fold it, realizing the redundancy of the power of mini actuators on the principle of combining the efforts.

Links

1. Redko p. g, Fighters A.A., Tickin O.V. and other Elektrogidrodinamicheskie drive. RF patent №2191138. Publ. Bull. No. 29 of 2002

2. Stephen .Jensen, Gavin D. Jenney, Bruce Raymond, David Dawson. Flight Test Experience With an Electromechanical Actuator on the F-18 Systems Research Aircraft. Presented at the 19th Digital Avionics Systems Conference, October 7-13, 2000, Philadelphia, Pennsylvania, USA.

3. Samsonovich S.L., Stepanov, V.S., URS is VE, Furniture SV Power mini-drive. RF patent №2321138. Publ. Bull. No. 9, 2008

1. Power mini-actuator movable aerodynamic surfaces of the aircraft, comprising a housing, within which is coaxially along the longitudinal axis of the power of the mini-actuator posted a frameless electric motor consisting of a stator and a rotor mounted on the shaft, one or more stages of the wave gear with rolling elements and the position sensor output link single or multi-wave transmission with rolling elements, characterized in that it is provided with a sleeve fixed to the end surface of the output link single or multi-wave transmission with rolling bodies eccentric relative to the longitudinal axis of the power mini-drive and traction with the eyelets on the ends one of which is worn on the sleeve for rotation around the axis of the sleeve, and the second is designed for attachment to a fixed part of the aircraft, in this case the power of the mini-actuator is equipped with a fastening element to the movable aerodynamic surfaces so that the longitudinal axis of the power of the mini-actuator is oriented parallel to the axis of rotation of the movable aerodynamic surfaces of the aircraft.

2. Power mini-actuator movable aerodynamic surfaces of the aircraft according to claim 1, characterized in that between the rotor shaft and the driving member of one or more stages of wave transmission by rolling elements installed electromagnetic clutch.



 

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7 cl, 2 dwg

FIELD: instrument industry.

SUBSTANCE: electric drive comprises first and second electric motors, planet gearings, and differential. Stators (5) and (6) of the electric motors are secured to housing (2) of the electric drive. Shaft (7) of rotor (3) of the first electric motor is mounted on base (1) and is connected with central pinion (16) of the differential through a clutch. Shaft (10) of rotor (4) of the second electric motor bears on shaft (7) of rotor (3) and is connected with the hollow central pinion (17) of the differential through a clutch. Central pinion (16) is mounted in the space of central pinion (17) and engages satellites (19). Satellites (19) engage satellites (21) in pair. Central pinion (16) is interposed between two spherical bearings (22) and (23). Carriers (20), (27), and (30) of the differential and first and second planet gearings are made in block with central pinions (25), (29), and (33) of the first, second, and third planet gearings, respectively. Satellites (26) and (32) engage common gearing wheel (34) which is secured to housing (2). Carrier (37) of the planet gearing is made in block with output shaft (40). First (42), second (43), and third (44) supports are interposed between central pinions (25), (29), and (33) and carriers (27), (30), and (37), respectively.

EFFECT: simplified manufacturing and assembling of the electric drive.

cl, dwg

FIELD: electromechanical engineering.

SUBSTANCE: proposed high-speed electrical machine has stator and rotor whose shaft journal is clamped by external rings of at least three bearings installed on eccentric axles coming in mesh with auxiliary-motor rotor. Free-running unit is introduced to prevent departure of mentioned parts from one another as they wear down that functions to control turn of auxiliary-motor rotor only in direction affording tightening of shaft journal bearings by external rings. Free-running unit that functions to reduce vibration and radial thrusts on bearings is made in the form of free-wheel clutch whose driven member is rigidly fixed on frame. Driving member is auxiliary-motor rotor. In the course of running rotor takes plays due to wear-down of contacting parts under action of torque.

EFFECT: enhanced reliability and enlarged service life of electrical machine.

2 cl, 2 dwg

FIELD: electrical engineering and machine building, applicable in the drives of automatic control systems, robotics, high-precision and power mechanisms with hydraulic and electric motors.

SUBSTANCE: the power minidrive with a hydraulic motor has a wave regulator, hydraulic motor, power bearing and a body. The wave regulator has a rigid wheel made as a single component with the outer race of the power bearing, roller used as rollers of the power bearing, multirow separator made as a single component with the separator of the power bearing, wavemaker, representing rigid rings made as a single component with the inner race of the power bearing. The hydraulic motor has a stator in the form of a cylinder block with plungers, control motor, distribution device, working medium feed and drainage connections, connecting ducts, and a rotor representing rigid rings. The body is formed by a cover and a multirow separator of the wavemaker. According to the second modification, the power minidrive is made with an electric motor.

EFFECT: reduced overall dimensions.

2 cl, 4 dwg

Gear motor // 2285995

FIELD: electrical engineering; motor physical coupling with gear transmission.

SUBSTANCE: proposed motor 1 that can be used to drive air duct shutter in motor-car weather unit has cup-shaped frame 3 and disk-type rotor with commutator 4. Disk-type rotor is installed in frame 3 on sleeve 12 rigidly joined on one end with frame bottom 13. Rotor sleeve 11 is elongated so that butt-end of its first edge 14 is adjacent to frame bottom 12 and second edge 15 of sleeve 11 mounts gear wheel 16 which can be press-fitted thereon. Rotor commutator 4 is secured through its base 17 on outer cylindrical surface of sleeve 11 and rotor disk 6 carrying winding 18 is disposed on commutator 4. Motor frame 3 may be joined with gear transmission casing 21 on second edge 15 of rotor sleeve 11 so that gear wheel 15 mounted on sleeve 11 occurs within casing 21 and is brought in mesh with respective member of gear transmission 2. Output shaft 25 of gear transmission 2 is set in position affording its coupling, for instance, with shaft 26 of weather unit air duct shutter 27. Output shaft 25 of gear transmission 2 and shaft 26 of shutter 27 may be coupled through arm 28 of sensor 29 that generates signal indicating angular position of output shaft 25 or shaft 26 of shutter 27.

EFFECT: enhanced operating stability and maintainability of gear motor.

7 cl, 4 dwg

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