Combination drive

FIELD: aircraft manufacture; control of high-lift devices of wing (flaps, slats).

SUBSTANCE: electric motor (1) is mounted in one kinematic channel and is mechanically connected with sun gear wheel of planetary differential mechanism (6) provided at gearbox input; it is connected with electromechanical brake clutch (3) electrically connected in series with electric motor. Hydraulic motor (2) is mounted in other kinematic channel and is mechanically and hydraulically connected with hydromechanical brake (4) by means of control head; it is also linked with epicycle of planetary differential mechanism (6) via matching in-line gear train.

EFFECT: enhanced reliability; reduced mass of drive.

1 dwg

 

The invention relates to aircraft and can be used to control high-lift devices (flaps, slats) plane.

Known planetary hydraulic drive containing the hydraulic cylinder control, high torque planetary hydraulic motor, hydro-mechanical brake coupling, the unit switches to the gearbox, which is used as the actuator in the control flaps or slats of the aircraft [1].

The disadvantage of this drive is a large mass due to hydromechanical brake clutch, which is installed on the output shaft of the actuator and takes the maximum time. The second disadvantage of this drive is the homogeneity of the hydraulic redundancy using two channels of a single motor, which is a common point of hydraulic systems, which reduces reliability.

Also known automated electric drive of the moving flaps, containing two motor, gearbox with the summation of the frequencies of rotation, the unit shaft position sensors and end switches [2].

The reliability of the described actuator is improved by incorporating in it the kinematics of the two motors, which are powered by 3-phase AC current in the primary mode, and DC - in backup. However, the lack of drive in the de homogeneity electric back-channel is not resolved.

The closest in technical essence and the number of matching characteristics of the present invention is selected as a prototype combined drive mechanization CTV-02 [3], containing an electric motor, hydraulic motor, hydraulic cylinder, control, Electromechanical brake clutch, hydromechanical brake, planetary differential mechanism, three planetary and row matching gear, output shaft, the shaft position sensors and end switches.

Considering the drive is made in the profile dissimilar (electric and hydraulic) redundant channels, which improves reliability and reduces weight but has the following drawback. When working electrical conduit of the hydraulic motor, kinematically rigidly associated with the output shaft also rotates. If it is jamming the drive becomes unusable.

The invention solves the problem of increasing the reliability of the combined actuator while maintaining a relatively small weight and size.

To achieve this, the technical result in the combined actuator including an electric motor, hydraulic motor, hydraulic cylinder, control, Electromechanical brake clutch, hydromechanical brake, gear, consisting of PLA is eternulo differential mechanism, three planetary and row matching gear, output shaft, the shaft position sensors and end switches, according to the invention a motor mounted in one kinematic channel, mechanically connected with a sun wheel of the planetary differential mechanism developed at the input to the gearbox, and coaxial with the sun wheel via a planetary gear mechanically connected to the Electromechanical brake coupling, electrically serially connected with an electric motor, hydraulic motor, mounted in the other kinematic channel, directly mechanically and hydraulically through head control is connected with the hydraulic brake, and through matching Radney gear associated with epicycles planetary differential mechanism.

The above distinguishing features of the claimed combo drive are essential, as each of them necessary, and together they are sufficient to achieve the technical result in comparison with the prototype and similar drives. Between the features and achievable technical result there is a causal relationship.

The use of gear with the planetary differential mechanism input helped to minimize the mass and the dimensions of the brake device, because they are calculated at the lowest possible moments. The connection of the motor with a sun wheel, and a motor with epicycles, i.e. the links of the planetary mechanism with the number of degrees of freedom equal to two, provided their independent rotation. Due to this, the technical result improved reliability of the drive and minimized weight and dimensions of the space.

The claimed technical solution is new, because it is not known from the prior art, involves an inventive step, since the proposed circuit, the combination of drive elements is not obvious from the prior art, industrially applicable, because it is intended for use to drive the flaps and slats plane.

Technical essence and the principle of operation of the combined actuator illustrated by the drawing.

Combo drive includes a reversible electric motor 1, the hydraulic motor 2, the hydraulic control head (not shown), elecromechanicheskiy brake clutch 3, hydro-mechanical brake 4, the gear 5, consisting of a planetary differential mechanism 6, three planetary 7, 8 and line gear 9, 10, 11 of the transmission output shaft 12, block 13 of shaft position sensors and end switches with built-in gearbox. The motor 1 is installed in one of kinema is practical channel gear 5, mechanically connected with a sun wheel of the planetary differential mechanism 6 and coaxially with the sun wheels through the planetary gears 7, 8 is mechanically connected to the Electromechanical brake clutch 3, which is electrically connected in series with the motor 1. The hydraulic motor 2 mounted in a different kinematic channel gear 5, directly mechanically and hydraulically through head control connected with hydromechanical brake 4, and through matching Radney gear 9 is connected with epicycles planetary differential mechanism 6. The output shaft 12 through the gear 11 is connected to the block 13 of shaft position sensors and end switches, and through the transmission 10 with three planetary gear 8.

Combo drive works as follows.

When voltage is applied to the electric motor 1 is releasing Electromechanical brake clutch 3, the rotation shaft through the sun wheel and the pinion carrier of the planetary differential mechanism 6, then through three planetary 7, 8 and row 10 of the transmission is transmitted to the output shaft 12, and with him through matching Radney transmission 11 is a block 13 of shaft position sensors and end switches, with which the alarm about the current and the target position is the deposits of the shaft 12. When the kinematic channel hydro-mechanical brake 4 is held in a stationary state of the hydraulic motor 2 and apical planetary differential mechanism 6.

While supplying the working fluid to the hydraulic motor 2, and by means of hydraulic head and hydro-mechanical brake 4 is releasing the latest and rotation of the shaft through matching Radney transmission 9, apical planetary differential mechanism 6, then through three planetary 7, 8 and row 10 of the transmission is transmitted to the output shaft 12. This kinematic channel sun wheel of the planetary differential mechanism 6 is held from rotation of the Electromechanical brake clutch 3.

The use of the invention, the actuator for controlling the mechanization of the wing can significantly increase the reliability of the actuator while reducing its weight and size. Combo drive is designed for use in the control system of flaps and slats of an-148 aircraft.

Sources used

1. The hydraulic planetary GP-400. Factsheet. Developer Pew "Sunrise". Russia, 606130, Pavlovo, Nizhny Novgorod oblast, ulamazesi, 78.

2. Automated electric drive of the moving flaps FTE-77. Developer JSC "Electric". Rho is this, 610006, Kirov, Oktyabrsky prospect, 24.

3. The technical installation manual combo drive mechanization CTV-02. 027.50.02 re. 1998, p.7/8, 2. Developer ASTC "Antonov". Ukraine, 03062 Kyiv, ultraleve, 1.

Combined drive containing an electric motor, hydraulic motor, hydraulic cylinder, control, Electromechanical brake clutch, hydromechanical brake, gearbox, comprising a planetary differential mechanism, three planetary and row matching gear, output shaft, the shaft position sensors and end switches, characterized in that a motor mounted in one kinematic channel, mechanically connected with a sun wheel of the planetary differential mechanism developed at the input to the gearbox, and coaxial with the sun wheel via a planetary gear mechanically connected to the Electromechanical brake coupling, electrically serially connected with an electric motor, hydraulic motor, mounted in the other kinematic the channel, directly mechanically and hydraulically through head control is connected with the hydraulic brake, and through matching Radney gear associated with epicycles planetary differential mechanism.



 

Same patents:

FIELD: mechanical engineering, automobile construction, in particular, rotational speed changing technique.

SUBSTANCE: variator has speed regulating mechanism made in the form of toothed differential mechanism, drive for speed regulation mechanism, planetary working frame 4 and planetary balancing frame 5, frame guide 11 and frame rotation casing 12. Frames 4, 5 are meshed with central toothed gear 3 and are placed, in conjunction with said gear, within frame guide 11. Two planetary working toothed gears 6, 10 are fixed within frame 4. Planetary working toothed gear 6 is fixed through cardan drive 8 and shaft 9 to variator housing 7 to rotate relative to frame 4. Planetary toothed gear 10 is connected through second cardan drive 8, intermediate toothed gears 21, 22 and toothed gear 23 to variator driven shaft 24 to run around first planetary working toothed gear 6. On increase of rotational speed or adjustment, frames 4, 5 are offset by centrifugal force relative to rotational center of drive shaft 1. On offsetting of frames, radii of rotation of planetary working gears 6, 10 relative to rotational center of drive shaft 1 are increased and transmission ratio is changed.

EFFECT: increased efficiency and provision for transmission of great powers by toothed transmission.

12 dwg

FIELD: mechanical engineering.

SUBSTANCE: proposed system of transmission with constantly changing gear ratio has input and output shafts, 16 and 24, respectively, transfer unit V with constantly changing gear ratio connected to input shaft 16, mixed epicyclical transfer mechanism E1 and second epicyclical transfer mechanism E2. Mechanism E1 has input sun gear S1 connected to output shaft of variable speed drive 18, carrier C1 connected to input shaft 16 and planetary gear P1 installed on carrier C1. Planetary gear P1 drives first intermediate output shaft 32 selectively connected to output shaft 24 of system through first clutch H at high speed of system. Planetary gear P1 provides also input power for second epicyclical transfer mechanism E2. Mechanism E2 has output C2 which is selectively connected to output shaft 24 of system through brake member L at low speeds of system.

EFFECT: minimization of engagement of gears, thus minimizing transmission losses, no backlash in mechanism E1, increased range of selection of sizes of gears, thus reducing speed of gears.

2 cl, 2 dwg

FIELD: transport engineering.

SUBSTANCE: invention can be used in tractors, automobiles, road building machines, etc. Additional simple three-member planetary mechanism is installed in gearbox between off-axial two-shaft reduction gear and main three-member planetary mechanism. Gear rims 27, 28, 29 of tubular shaft 26 of epicyclic wheel 25 and output shaft of carrier 24 of main three-member planetary mechanism and output shaft 6 of set 1 are arranged close to each other. Shifter sleeve 35D is located on gear rim 29 of set output shaft 6. Shifter fork 36 is connected by slider 37 with gear rim 38 with internal and external gearing. Gear rim 38 connects gear rims 32, 30 of set housing and housing of epicyclic wheel 25.

EFFECT: increased range of gear ratios and number to forward speeds to sixteen and reverse speed to eight, contributes to transformation of high torques.

2 dwg

FIELD: mechanical engineering.

SUBSTANCE: planet friction variator comprises shaft (1), solar wheel (2), corona wheel (6), carrier (4) with satellites (3), and secondary shaft (5). Corona wheel (6) that is used as a control member is connected with variator housing (11) and primary shaft (1) through friction mechanisms. Secondary shaft (5) is made in block with carrier (4) for permitting control of velocity and direction of rotation of the corona wheel by means of friction mechanisms and control electric motor (9) connected with the corona wheel.

EFFECT: simplified structure, reduced sizes, and enhanced reliability.

1 dwg

FIELD: mechanical engineering.

SUBSTANCE: continuously variable transmission comprises housing, input and output shafts, reverse mechanism and multi-disk planet variator provided with planet reduction gear, which define a variator. The solar pinion of the reduction gear is fit on the output shaft with interference and its epicycle is secured to the housing of the transmission. The variator has epicycle mounted in the housing of the transmission and made of a stack of disks and solar pinion made of a disk stack mounted on the output shaft of the variator connected with the output shaft of the reverse mechanism. The carrier of the variator is connected with the carrier of the planet reduction gear and consists of two disks interconnected by means of tension bolts. The disks of the carrier have shaped slots the number of which is equal to the number of axles mounted in the shaped slots for permitting change of position and interaction with the disks of the solar pinion and epicycle. The gear ration controller is build in the carrier of the variator. The planet reduction gear, planet multi-disk variator, and reverse mechanism are axially aligned.

EFFECT: prolonged service life and expanded functional capabilities.

18 cl, 8 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: according to invention, gear 14 is secured on primary shaft 3, and gear 13 is secured on first tubular shaft 9 freely fitted on primary shaft 3. Gear rims 21 and 22 are fitted on shafts 3 and 9. Input shaft 2 with hub of three-position shifter sleeve 23 and additional driving shaft 4 are installed coaxially to shaft 3. Two gears 17 and 18 in meshing with gears 19 and 20 of secondary shaft 5 are secured on shaft 4. Gear 19 is fitted on shaft 5. Gear 20 is secured on second tubular shaft 10 freely installed on shaft 5. Gear rims 24 and 25 are secured on shafts 5 and 10. Shaft 6 with hub of two-position shifter sleeve 26 and sun gear 27 of planetary mechanism is installed coaxially to shaft 5. Gear 27 engages through planet pinions 31 with epicyclic wheel 32. Planet pinions 31 are freely fitted on axles of carrier 33. Two gear rims 34 and 35 are arranged on periphery of housing of carrier 33. Shaft 7 of carrier 33 with two position gear rim is arranged coaxially to shaft 5 and shaft 6. Third tubular shaft 11 of housing of epicyclic wheel with gear rim 38 is freely fitted on shaft 7. Output shaft 8 with hub of three-position shifter sleeve 40 is arranged coaxially to shaft 7. Sleeve 40 is movably coupled by guide 41 with two-rim shifter sleeve 42 arranged between gear rim 37 of housing 36 of epicyclic wheel 32 and gear rim 43 of gearbox case provided with two inner gear rims and one outer gear rim.

EFFECT: perfected design owing to reduction of metal usage and complexity.

2 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: in proposed coaxial shaft-and-planetary transmission gear 10 on primary shaft 2 is secured and is in meshing with gear 7 provided with rim of increased width and freely fitted on intermediate shaft 6. Gear 11 of secondary shaft 3 has also rim of increased width near gear rim of gear 10 of primary shaft 2. shifter sleeve member 24 fitted on said gear rims is coupled with other sleeve member 25 by shifter fork 26, sleeve member 25 being installed on gear rims of gears 7 and 8 of intermediate shaft 6. Gear rim 19 of output shaft of carrier 15 is two-position one. Gear rim 20 of output shaft of set 5 is three-position one, and shifter sleeve 28 on said rim is provided with three internal gear rims. Gear rim 31 with internal and external meshing is teeth rigidly secured on slider 30 of shifter sleeve 28, external meshing teeth being coupled with three-position gear rim 23 of housing of set 1.

EFFECT: increased range of gear ratios of shaft reduction gear at reduced overall dimensions and metal usage, improved gear shift mechanism of planetary mechanism.

2 dwg

FIELD: mechanical engineering.

SUBSTANCE: mechanical amplifier comprises power differential (1), comparing differential (30), adjusting differential (2), control differential (36), and two self-braking mechanisms (3) and (4). The input of the power differential (1) is connected with the drive and input of control differential (2). Central wheels (17) and (18) of the power differential are secured to driven links (15) and (16) of the self-braking mechanisms and connected with central wheels (32) and (33) of the comparing differential so that the central wheels of the comparing differential rotate in opposite directions. Driving links (13) and (14) of the self-braking mechanisms are connected with central wheels (19) and (20) of the adjusting differential and central wheels (42) and (43) of the control differential so that the central wheels of the control differential rotate in opposite directions.

EFFECT: enhanced reliability and expanded functional capabilities.

1 dwg

Drive (versions) // 2278309

FIELD: mechanical engineering; devices for control of rotational speed of working member shaft.

SUBSTANCE: proposed drive has unadjustable electric motor, adjustable electric motors, input shaft 1 and output shaft 2, gear trains, differential gear trains formed by two wave gear trains with common wave generator 3 and worm transmissions and differential gear. Worm shafts 11 and 12 are set in rotation from adjustable electric motors. External gear wheels 6 and 7 of wave gear trains are coupled with worms 11 and 12. Internal gear wheels 9 and 10 of wave gear trains are kinematically linked with differential gear wheels 19 and 20 which are connected with output shaft 21 of drive. Two wave gear trains are chain-type in construction and are related as follows: Zch1+Zch2=2Zext; Zch1+Z=Zch2-Z, where Zch1 and Zch2 is number of rollers in chains of first and second wave gear trains; Zext is number of teeth of external gear wheel of wave gear drives thrown into engagement with rollers of chains; 2Z is difference of rollers in chains.

EFFECT: possibility of changing the direction of rotation and rotational speed of shaft of working member in wide range; increased speed of response; enhanced reliability.

5 cl, 3 dwg

FIELD: agricultural engineering; offroad tractor.

SUBSTANCE: invention relates to driving axle with suspension and agricultural tractor with such axle which has central housing with build-in final drives and left-hand and right-hand axle housings suspended by means of upper and lower adjusting arms, with axle-shafts projecting from axle on which wheel-and-tire units are installed. Constant-velocity universal joint is installed between fitted-in final drives and axle-shafts. Said universal joint has pair of journal members and coupling holder radially enclosing driving and driven races of joint, thus minimizing axial length of universal joint providing arrangement of wheels on axle-shafts at width of 1524 mm.

EFFECT: possibility of using driving shaft on tractor-cultivator without changing design of load-bearing frame of standard tractor-cultivator with preservation of performance characteristics of said tractor-cultivator.

39 cl, 15 dwg

Unit steering // 2154593
The invention relates to the field of unmanned aerial vehicles and can be used in the development of actuators aerodynamic rudders

Unit steering // 2102282
The invention relates to the field of steering actuators aerodynamic surfaces of unmanned aerial vehicles

Combination drive // 2312794

FIELD: aircraft manufacture; control of high-lift devices of wing (flaps, slats).

SUBSTANCE: electric motor (1) is mounted in one kinematic channel and is mechanically connected with sun gear wheel of planetary differential mechanism (6) provided at gearbox input; it is connected with electromechanical brake clutch (3) electrically connected in series with electric motor. Hydraulic motor (2) is mounted in other kinematic channel and is mechanically and hydraulically connected with hydromechanical brake (4) by means of control head; it is also linked with epicycle of planetary differential mechanism (6) via matching in-line gear train.

EFFECT: enhanced reliability; reduced mass of drive.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engineering, particularly to drives of control aerodynamic surfaces. Assembly of control drives comprises actuators, each consisting of the housing, control surface shaft, high-speed motor and reduction gear. Additionally, each actuator comprises moving toothed rack and toothed quadrant in mesh with the latter. Toothed quadrant is fitted on the control surface shaft, while reduction gear is additionally furnished with ball-and-screw gear wherein sliding nut engages aforesaid rack, while sliding screw is fitted on the helical gear output shaft. Note here that the number of helical gear stages does not exceed two.

EFFECT: simplified design.

2 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft airframe units drives. Drive 2 comprises housing 4, primary engine 6 to create rotary motion, first reduction gear 10 mounted to convert rotary motion of primary engine 6 in rotary motion of output shaft with higher torque and low rpm. First reduction gear comprises casing 14 secured to rotate relative to drive housing 4 and second reduction gear 16 arranged to convert rotary motion of housing 14 of first reduction gear 10 in that with lower torque and higher rpm. Brake 20 is mounted to influence rotary motion from second reduction gear 16. With first reduction gear 10 unlocked in operation, applied brake inhibits displacement of first reduction gear case relative to housing 4 of drive 2. With first reduction gear 10 locked, brake 20 gets released to allow first reduction gear case 14 to revolve relative to drive housing 4. First reduction gear may revolve at output in the range of plus 180 to minus 180. Besides, second engine may be used to drive second reduction gear. Proposed drive consists of the set of assembly units and parts and may be used for control over aircraft landing gear leg.

EFFECT: part may be moved with drive reduction gear locked.

17 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly, rudder control electric drives. Proposed drive comprises linear control mechanisms arranged in single housing, common rudder opening mechanism and retracted rudder locking mechanism. Liner control mechanisms are engaged via reduction gearboxes with appropriate control surfaces fitted in rolling bearings. Output shaft of every reduction gearbox is engaged with rudder shaft via ball-and-screw gearing.

EFFECT: synchronous opening of rudders.

2 cl, 5 dwg

Slat support assy // 2502636

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering. Aircraft wing has slat and slat support assy. Slat support lever is configured to disengage from case located far from wing leading edge when said slat is completely extended. Slat support assy comprises support lever with multiple bearing surfaces extending along its length and multiple cylindrical roller bearings. Said lever displaces to release the slat secured to one end of said bearing lever from aircraft wing leading edge. Every bearing stays in rolling contact with bearing surface to support slat bearing lever to guide it in slat release and retraction. Every bearing has rotary axis parallel with its bearing surface. Slat assy comprises two adjacent top bearing surfaces, both located at the angle to adjacent top bearing surface so that bearing related with every top bearing surface does no share common axis with bearing.

EFFECT: reduced weight.

15 cl, 7 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering and concerns leading edge flap drives. Electromechanical drive contains two pull-out rails with teethed sectors, sectioned main shaft, split sleeves interconnecting main shaft sections, two electromechanical drives of main shaft sections with bodies fixed in wing main frame. Each body has following components installed in it: electric motor and electric motor rotor angular position sensor, double-stage harmonic reducing gear with rotation bodies with hollow output shaft having two cams with bearings and building rings of the first stage comprising wave former installed on them. The body contains stage separators. Separator of the first stage with placed in it rotation bodies interacting with waved surface of rigid wheel of the first stage on which wheel cams with bearings and building rings are installed. Separator of the second stage with placed in it rotation bodies interacting with building rings and waved surface of rigid wheel of the second stage. Rigid wheel of harmonic reducing gear first stage has hollow shaft, and wave former is placed on the hollow shaft. Separator of the second stage of harmonic reducing gear is fixed in body and is immovable. Rigid wheel of the second stage with waved surface is installed with possibility to rotate relative to body and has hollow output shaft. The main shaft the length of each section of which exceeds the length of one electromechanical drive is placed inside hollow rotor, the first stage rigid wheel hollow shaft and hollow output shaft of the second stage rigid wheel. Controlled uncoupler is installed between the main and hollow output shafts.

EFFECT: higher reliability of leading edge flap electromechanical drive.

5 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to means of controlling vehicles. Vehicle control unit comprises control system including handle unit containing control lever with first and second sections. To first section of lever first drive shaft is attached, and to second section of lever handle is attached at distance from first drive shaft. Lever with handle is arranged with possibility to turn about first rotational axis. Control unit includes wave gearbox containing flexible gear connected with second drive shaft, located at distance from first drive shaft. Second drive shaft can rotate about second axis together with rotation of flexible gear wheel. Lever mechanism is connected with first and second drive shafts so that rotation of second drive shaft around second axis turns lever mechanism around first and second axes of rotation, thus rotating first drive shaft around first axis.

EFFECT: possibility to provide direct, without controlled coupling, connection between engine, wave gearbox lever mechanism and control lever.

25 cl, 5 dwg

FIELD: mechanisms.

SUBSTANCE: flight control actuator drive (100) comprises first engine (10) for the first rotary inlet, second engine (12) for the second rotary inlet and device for speed summation (20) for connection of the first and second rotational inputs in one rotary output to control the actuator. Device for speed summation (20) comprises first and second circular input gears (22, 24), multiple pairs of planetary gears (30, 32). First planetary gear (30) is connected to first ring gear (22), second planetary gears (32) is connected to second ring gears (24), first and second planetary gears (30, 32) of each pair are connected to each other in mutual regulated mode. Carrier, which provides rotary output to control the actuator is connected to planetary gears.

EFFECT: possibility to backup drive, reduced weight and simplified design are obtained.

15 cl, 4 dwg

FIELD: mechanical engineering.

SUBSTANCE: gear transmission comprises planetary reduction gear and worm pair which engages the planetary reduction gear. Worm (1) of the worm pair is mounted for permitting rotation and axial movement along the driving shaft of the gear transmission and is kinematically connected with satellite (7) of the planetary reduction gear. Driving shaft (2) carries small central wheel (9) of the planetary reduction gear and kinematically connected with satellite (10) of the planetary reduction gear. Satellite (10) is kinematically connected with worm wheel (3). The axle of wheel (3) freely rotates around carrier (4). The axle of large central wheel (8) of the planetary reduction gear is the driven shaft of the gear transmission.

EFFECT: improved design.

1 dwg

Up!