CN103616172A - Linear electromechanical actuator performance test experiment table capable of simulating work mounting environment - Google Patents
Linear electromechanical actuator performance test experiment table capable of simulating work mounting environment Download PDFInfo
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Abstract
The invention discloses a linear electromechanical actuator performance test experiment table capable of simulating a work mounting environment with two ends in a spherical hinge mounting mode. Modular design is adopted in the experiment table, a rigidity simulator component 3 and an inertia simulator component 6 can be conveniently mounted and dismounted, and the experiment table can adapt to tests under different mounting environments. A loading hydraulic cylinder 55 is provided with a precise servo control system, different axial thrusts and pressures of different speeds and externally-applied loads changed at high frequency can be provided, and the performance of a tested linear servo actuator can be comprehensively tested. The arranged rigidity simulator component 3 and inertia simulator component 6 can be manually adjusted, and different kinds of rigidity and inertia can be simulated. A dual helical tooth clearance elimination transmission component 8 and an inclined gear rack 9 are adopted in the experiment table to apply the inertia of the inertia simulator component 6 to a tested actuator 32, and therefore transmission is more stable, and meanwhile backlashes in circular teeth due to meshing abrasion can be automatically compensated. In addition, the experiment table can be suitable for the tests of linear electromechanical actuators of different types by simply changing the structure.
Description
Technical field
The present invention relates to a kind of mechanical hook-up of linear electromechanical actuator performance test that can analog operation installation environment.
Prior art
The advantages such as linear electromechanical actuator is little with its volume, efficiency is high, lightweight, viability is strong and easy to maintenance just progressively replace traditional hydraulic actuator, and are widely used in the fields such as flight control system, precision machine tool, robot and industrial process control.Along with the development of complete electrochemical aircraft, the application of linear electromechanical actuator in vehicle rudder control system is more and more wider especially.The performance of linear electromechanical actuator can directly have influence on its start speed, efficiency and to control accuracy of start object etc., therefore need before use actuator to carry out performance test.Simultaneously, linear electromechanical actuator is in carry-on mounting structure rigidity and drive moment of inertia and the rigidity of rudder face all can exert an influence to its output characteristics, so on the basis of the independent linear electromechanical actuator performance index of test, need further to obtain it rigidity and flight rudder face rigidity and the impact of moment of inertia on linear electromechanical actuator performance be installed.
In prior art, linear electromechanical actuator performance experiment table mainly concentrates on the test to actuator mechanical driving part, the performance of ball-screw is tested, the comprehensive dynamic that " performance evaluation of high speed ball screw and experimental study thereof " studied ball-screw as document is learned performance.This class experiment table is not taken into account the performance of actuator remaining part, so measurement result can not reflect the performance of actuator integral body.And, the work installation environment of linear electromechanical actuator can exert an influence to its output characteristics, so need to, on the overall performance index basis of the independent linear electromechanical actuator of test, further obtain it rigidity and flight rudder face rigidity and the impact of moment of inertia on linear electromechanical actuator performance are installed.The external existing similar experiment table that adopts hydraulic loading device, as document " Modeling and simulation of mechanical transmission in roller-screw electromechanical actuators ", but the simulation rigidity of the rigidity analogue of this experiment table is unadjustable, test specification is narrower, function is comparatively single.
Summary of the invention
In order to overcome, existing linear electromechanical actuator performance test experiment table test specification is narrower, function is comparatively single, the linear electromechanical actuator bad adaptability to different size, experiment table structure is difficult to meet many deficiencies such as simulation actuator work installation environment requirement, and the present invention has designed a kind of mechanical hook-up of linear electromechanical actuator performance test that can analog operation installation environment.
Technical scheme of the present invention is, a kind of linear electromechanical actuator performance test experiment table, mainly comprise basic platform 1, mounting bracket a2, stiffness simulation device assembly 3, ball pivot assembly 4, tested actuator assembly 5, inertia simulation device assembly 6, helical rack bracket component 7, the double-helical-tooth gap transmission component 8 that disappears, helical rack 9, stiffness simulation device joint 10, mounting bracket b11, hydraulic pressure cylinder assembly 12, plug cock 13, power sensor connector a14, power sensor 15, power sensor connector b16, internal force bar 17, proximity transducer 18, bearing bridge assembly 19, tested actuator joint a20, proximity transducer mounting bracket 21, line slideway 22, line slideway support 23, tested actuator joint b24, the basic platform 1 that contains oil groove is used for supporting whole experiment table parts, mounting bracket a2 is bolted on basic platform 1, and dive key 25 is installed in bottom positions, line slideway support 23 is fixed on basic platform 1 by the mode identical with mounting bracket a2 with mounting bracket b11.All install by high-strength bolt and two supports at the two ends of two internal force bars 17, forms the internal force system of a sealing; Experiment table is provided with two stiffness simulation device assemblies 3, and the stiffness simulation device being connected with mounting bracket a2 is for simulating the installation rigidity of steering wheel, and the stiffness simulation device being connected with power sensor connector b16 is for the rigidity of simulated flight device rudder face; The stiffness simulation device assembly 3 being connected with mounting bracket a2 is connected by screw; Stiffness simulation device assembly 3 adopts screw to be connected with the stiffness simulation device joint 10 of its right-hand member, and stiffness simulation device joint 10 coordinates with the external thread of the ball pivot begin chain 29 of ball pivot assembly 4 by internal thread; The external thread of tested actuator joint b24 one end and the screw-internal thread fit of ball pivot assembly 4, the external thread of the other end and tested actuator 32 afterbody screw-internal thread fit, and all with thin nut, lock at connection of thread; Tested actuator assembly 5 is arranged on line slideway 22 by straight-line guide rail slide block 39; Tested actuator assembly 5 is connected through threaded engagement by tested actuator joint a20 with helical rack bracket component 7; Helical rack bracket component 7 bottoms are provided with two straight-line guide rail slide blocks 39, and are arranged on line slideway 22; Helical rack 9 is arranged on helical rack support 40 by screw and holding screw, equipped taper pin after completing assembling and setting; Bearing bridge assembly 19 is used screw and taper pin to be arranged on line slideway support 23; Double-helical-tooth bearing seat 51 clearance fit in bearing in gap transmission component 8 44 and bearing bridge assembly 19 that disappear, helical rack 9 is meshed by fixedly spiral gear 45 and the compression spiral gear 46 disappearing in gap transmission component 8 with double-helical-tooth, rectilinear motion is converted into rotatablely move drive inertia simulation device assembly 6 to rotate; ; The transmission shaft 50 that double-helical-tooth disappears in gap transmission component 8 is connected with the mounting flange 43 of inertia simulation device assembly 6 by key and screw; Two proximity transducers 18 are all arranged on proximity transducer mounting bracket 21 by nut, and by screw, are arranged on the both sides of helical rack bracket component 7 direction of motion, for limiting the range of movement of helical rack bracket component 7; The right-hand member of helical rack bracket component 7 is connected mutually by screw thread and ball pivot assembly 4, and the external thread of ball pivot assembly 4 is connected with the internal thread of stiffness simulation device assembly 3 left end stiffness simulation device joints 10; Stiffness simulation device assembly 3 adopts screw to be connected with the stiffness simulation device joint 10 at its two ends, and the internal thread of the stiffness simulation device joint 10 of stiffness simulation device assembly 3 right-hand members matches with the external thread of power sensor connector b16; The internal thread of the power sensor connector b16 other end matches with the external thread of power sensor 15; Hydraulic pressure cylinder assembly 12 is connected with mounting bracket b11 by hydraulic cylinder mounting flange 56; The external thread of power sensor connector a14 matches with the internal thread of hydraulic pressure cylinder assembly 12 operating bars, and the internal thread of the other end matches with the external thread of power sensor 15.
The invention has the beneficial effects as follows: this experiment table adopts modular design, and stiffness simulation device assembly 3 and inertia simulation device assembly 6 can carry out dismounting easily, can be suitable for the test under different installation environments; Above-mentioned linear electromechanical actuator is surveyed performance experiment table can apply different sizes by 55 pairs of tested actuator 32 of loading hydraulic cylinder, the axial thrust of friction speed and pressure, thus can simulate the load under various moving conditions.Stiffness simulation device assembly 3 and the inertia simulation device assembly 6 installed can be realized manual adjustments, can complete the simulation to multiple rigidity and inertia; Experiment table adopts the double-helical-tooth gap transmission component 8 that disappears with helical rack 9, the inertia of inertia simulation device assembly 6 to be applied in tested actuator 32, so transmission is more steady, the backlash simultaneously can auto-compensation producing due to meshing wear; This linear electromechanical actuator performance experiment table can be measured the performance parameters such as quiet dynamic loading, actuating travel, start speed, start acceleration and frequency response of linear electromechanical actuator.
Compared to existing technology, in the present invention, adopted mainly by two installing plates and two internal force structures that internal force bar 17 forms, can make so whole experiment table structure compacter, stressed more reasonable; The present invention adopts modular design method, and stiffness simulation device assembly 3 and inertia simulation device assembly 6 can carry out dismounting easily, can complete the test under different installation environments; Loading hydraulic cylinder 55 self, with accurate servo-control system, can provide different sizes, and outer year of changing of the axial thrust of friction speed and pressure and high-frequency, can comprehensively test the performance of tested linear electromechanical actuator; Stiffness simulation device assembly 3 and the inertia simulation device assembly 6 installed can be realized manual adjustments, can be applicable to the test of different simulation rigidity and inertia; The present invention adopts disappear gap transmission component 8 of double-helical-tooth with helical rack 9, the inertia of inertia simulation device assembly 6 to be applied in tested actuator 32, so transmission is more steady, the backlash simultaneously can auto-compensation producing due to meshing wear; Experiment table forms compact conformation, can operating space large, easy to operate, applicable to the tested linear electromechanical actuator of measuring relatively large journey scope, just dissimilar linear electromechanical actuator is tested through simple structural change simultaneously.
Accompanying drawing explanation
Fig. 1 is the linear electromechanical actuator performance experiment table structural drawing that the present invention proposes
Fig. 2 is the installation diagram of dive key 25 in left installation bracket a2
Fig. 3 is stiffness simulation device assembly 3 structural drawing
Fig. 4 is ball pivot assembly 4 structural drawing
Fig. 5 is tested actuator assembly 5 structural drawing
Fig. 6 is helical rack bracket component 7 structural drawing
Fig. 7 is inertia simulation device assembly 6 structural drawing
Fig. 8 is double-helical-tooth gap transmission component 8 structural drawing that disappear
Fig. 9 is bearing bridge assembly 19 structural drawing
Figure 10 is hydraulic pressure cylinder assembly 12 structural drawing
Wherein: 1-basic platform; 2-mounting bracket a; 3-stiffness simulation device assembly; 4-ball pivot assembly; The tested actuator assembly of 5-; 6-inertia simulation device assembly; 7-helical rack bracket component; The 8-double-helical-tooth gap transmission component that disappears; 9-helical rack; 10-stiffness simulation device joint; 11-mounting bracket b; 12-hydraulic pressure cylinder assembly; 13-plug cock; 14-power sensor connector a; 15-power sensor; 16-power sensor connector b; 17-internal force bar; 18-proximity transducer; 19-bearing bridge assembly; The tested actuator joint of 20-a; 21-proximity transducer mounting bracket; 22-line slideway; 23-line slideway support; The tested actuator joint of 24-b; 25-dive key; 26-stiffness simulation device side plate; 27-stiffness simulation plate; 28-stiffness simulation device press strip; 29-ball pivot begin chain; 30-ball pivot chain guard; 31-spherical hinge bar; The tested actuator of 32-; 33-actuator erecting frame cover plate; 34-actuator erecting frame; 35-annular knurl flat head screw; 36-displacement transducer joint; 37-displacement transducer; 38-displacement transducer erecting frame; 39-straight-line guide rail slide block; 40-helical rack support; 41-inertia dish; 42-balancing weight; 43-mounting flange; 44-bearing; 45-is spiral gear fixedly; 46-compresses spiral gear; 47-dish spring; 48-clamping sleeve; 49-gland nut; 50-transmission shaft; 51-bearing seat; 52-bearing bracket; 53-takes bar; 54-bearing cap; 55-loading hydraulic cylinder; 56-hydraulic cylinder mounting flange; 57-spline slide bar; 58-spline joint.
Embodiment
Linear electromechanical actuator performance test experiment table in the present embodiment mainly comprises basic platform 1, mounting bracket a2, stiffness simulation device assembly 3, ball pivot assembly 4, tested actuator assembly 5, inertia simulation device assembly 6, helical rack bracket component 7, the double-helical-tooth gap transmission component 8 that disappears, helical rack 9, stiffness simulation device joint 10, mounting bracket b11, hydraulic pressure cylinder assembly 12, plug cock 13, power sensor connector a14, power sensor 15, power sensor connector b16, internal force bar 17, proximity transducer 18, bearing bridge assembly 19, tested actuator joint a20, proximity transducer mounting bracket 21, line slideway 22, line slideway support 23, tested actuator joint b24, the basic platform 1 that contains oil groove is used for supporting whole experiment table parts, mounting bracket a2 is bolted on basic platform 1, and dive key 25 is installed in bottom positions, line slideway support 23 is fixed on basic platform 1 by the mode identical with mounting bracket a2 with mounting bracket b11.All install by high-strength bolt and two supports at the two ends of two internal force bars 17, forms the internal force system of a sealing; Experiment table is provided with two stiffness simulation device assemblies 3, and the stiffness simulation device being connected with mounting bracket a2 is for simulating the installation rigidity of steering wheel, and the stiffness simulation device being connected with power sensor connector b16 is for the rigidity of simulated flight device rudder face; The stiffness simulation device assembly 3 being connected with mounting bracket a2 is connected by screw; Stiffness simulation device assembly 3 adopts screw to be connected with the stiffness simulation device joint 10 of its right-hand member, and stiffness simulation device joint 10 coordinates with the external thread of the ball pivot begin chain 29 of ball pivot assembly 4 by internal thread; The external thread of tested actuator joint b24 one end and the screw-internal thread fit of ball pivot assembly 4, the external thread of the other end and tested actuator 32 afterbody screw-internal thread fit, and all with thin nut, lock at connection of thread; Tested actuator assembly 5 is arranged on line slideway 22 by straight-line guide rail slide block 39; Tested actuator assembly 5 is connected through threaded engagement by tested actuator joint a20 with helical rack bracket component 7; Helical rack bracket component 7 bottoms are provided with two straight-line guide rail slide blocks 39, and are arranged on line slideway 22; Helical rack 9 is arranged on helical rack support 40 by screw and holding screw, equipped taper pin after completing assembling and setting; Bearing bridge assembly 19 is used screw and taper pin to be arranged on line slideway support 23; Double-helical-tooth bearing seat 51 clearance fit in bearing in gap transmission component 8 44 and bearing bridge assembly 19 that disappear, helical rack 9 is meshed by fixedly spiral gear 45 and the compression spiral gear 46 disappearing in gap transmission component 8 with double-helical-tooth, rectilinear motion is converted into rotatablely move drive inertia simulation device assembly 6 to rotate; ; The transmission shaft 50 that double-helical-tooth disappears in gap transmission component 8 is connected with the mounting flange 43 of inertia simulation device assembly 6 by key and screw; Two proximity transducers 18 are all arranged on proximity transducer mounting bracket 21 by nut, and by screw, are arranged on the both sides of helical rack bracket component 7 direction of motion, for limiting the range of movement of helical rack bracket component 7; The right-hand member of helical rack bracket component 7 is connected mutually by screw thread and ball pivot assembly 4, and the external thread of ball pivot assembly 4 is connected with the internal thread of stiffness simulation device assembly 3 left end stiffness simulation device joints 10; Stiffness simulation device assembly 3 adopts screw to be connected with the stiffness simulation device joint 10 at its two ends, and the internal thread of the stiffness simulation device joint 10 of stiffness simulation device assembly 3 right-hand members matches with the external thread of power sensor connector b16; The internal thread of the power sensor connector b16 other end matches with the external thread of power sensor 15; Hydraulic pressure cylinder assembly 12 is connected with mounting bracket b11 by hydraulic cylinder mounting flange 56; The external thread of power sensor connector a14 matches with the internal thread of hydraulic pressure cylinder assembly 12 operating bars, and the internal thread of the other end matches with the external thread of power sensor 15; Wherein:
On basic platform 1, have T-shaped groove and oil groove, for installing and location and installation support a2, mounting bracket b11 and line slideway support 23, and collect the hydraulic oil that hydraulic cylinder is revealed.
Consult Fig. 2, on mounting bracket a2, be processed with the mounting groove of dive key 25 and the circular groove coordinating with stiffness simulation plate 27, by the position of related features between given mounting groove and circular groove, guarantee the space mounting position of stiffness simulation device assembly 3.
Consult Fig. 3, described stiffness simulation device assembly 3 is by stiffness simulation device side plate 26, stiffness simulation plate 27, and stiffness simulation device press strip 28 forms; Stiffness simulation Ban27 center is processed with positioning boss, at the groove that has of both sides symmetry, and has scale at the region processing of groove; During installation, the center pit of the circular groove of the positioning boss of stiffness simulation plate 27 and mounting bracket a2 or stiffness simulation device joint 10 matches to merge and adopts screw to fix; Stiffness simulation device side plate 26, is connected by screw together between them, and uses countersunk external toothed lock washer locking for being connected two blocks of stiffness simulation plates 27 with stiffness simulation device press strip 28.In use, by regulating stiffness simulation device side plate 26 and the position of stiffness simulation device press strip 28 to change the simulation rigidity of stiffness simulation device, when they are positioned at different scale values, stiffness simulation device assembly 3 just can be simulated different rigidity values.
Consult Fig. 4, described ball pivot assembly 4 is by ball pivot begin chain 29, and ball pivot chain guard 30 and spherical hinge bar 31 form; Ball pivot chain guard 30 and 8 high-strength bolts of ball pivot begin chain 29 use link together.
Consult Fig. 5, described tested actuator assembly 5 is comprised of tested actuator 32, actuator erecting frame cover plate 33, actuator erecting frame 34, annular knurl flat head screw 35, displacement transducer joint 36, displacement transducer 37, displacement transducer erecting frame 38, straight-line guide rail slide block 39; Straight-line guide rail slide block 39 is arranged on the bottom of actuator erecting frame 34 by screw and holding screw, and matches with line slideway 22; Displacement transducer erecting frame 38 is arranged on the side of actuator erecting frame 34 by screw; The internal thread of tested actuator 32 afterbodys matches with the external thread of tested actuator joint b24 one end, and locks by thin nut; End and the displacement transducer joint 36 of tested actuator 32 operating bars join, and its internal thread matches with the external thread of tested actuator joint a20 one end, and use thin nut locking and fixing displacement sensor joint 36; Adjust actuator erecting frame 34 and to correct position, by screw, actuator erecting frame cover plate 33 is arranged on to the top of actuator erecting frame 34; Use nut that the extension bar of displacement transducer 37 is fixed on displacement transducer joint 36, and the screw on fastening displacement transducer erecting frame 38; Finally screwing annular knurl flat head screw 35 is fixed as one tested actuator 32 with actuator erecting frame 34.
Consult Fig. 6, described helical rack bracket component 7 is comprised of straight-line guide rail slide block 39 and helical rack support 40; Two straight-line guide rail slide blocks 39 are arranged on the bottom of helical rack support 40 by screw and holding screw, and match with line slideway 22; It is the moment around rail axis producing in motion process in order to overcome helical rack that two straight-line guide rail slide blocks 39 are installed; The top of helical rack support 40 is processed with the mounting groove that coordinates with helical rack 9 and for threaded hole fastening and location, joins burr-drill pin-and-hole, and squeeze into taper pin after debugging completes.
Consult Fig. 7, described inertia simulation device assembly 6 is comprised of inertia dish 41, balancing weight 42, mounting flange 43; Balancing weight 42 coordinates with the working groove on inertia dish 41 spokes, and uses screw that two balancing weights 42 are clamped on the spoke of inertia dish 41, and four spokes are respectively installed two balancing weights 42; On the spoke of inertia dish 41, demarcate and have scale, be in course of adjustment and need allow balancing weight 42 on each spoke in identical position; By regulating the distance at balancing weight and inertia Pan41 center just can regulate the size of inertia simulation device assembly 6 simulated inertias; The center pit of inertia dish 41 location of having matched with the boss of mounting flange 43 ends, and use bolt that inertia dish 41 is fixed on mounting flange 43; It is fixing that mounting flange 43 passes through flat key and end face screw and transmission shaft 50.
Consult Fig. 8, described double-helical-tooth disappear gap transmission component 8 by bearing 44, fixedly spiral gear 45, compress spiral gear 46, dish spring 47, clamping sleeve 48, gland nut 49, transmission shaft 50 and form; Bearing 44 matches to merge with transmission shaft 50 and bearing seat 51 and uses the shaft shoulder of transmission shaft 50 and the end face of bearing cap 54 to position; Transmission shaft 50 is supported in two bearings 44; The direction compressing according to spiral gear can determine that fixedly spiral gear 45, compression spiral gear 46 are dextrorotation, and helical rack 9 is left-handed; Fixedly spiral gear 45 is connected with transmission shaft 50 by key, and leans on mutually with the shaft shoulder of transmission shaft 50; Compress spiral gear 46 and by key, be connected with transmission shaft 50 equally, but complete install after and fixedly spiral gear 45 leave certain gap; Two paired being enclosed within on transmission shaft 50 of dish spring 47, and be affixed with the compression side that compresses spiral gear 46; The endoporus of clamping sleeve 48 coordinates with transmission shaft 50, and is affixed with dish spring 47; Screw in subsequently gland nut 49, exert pressure to after assembling completes compression spiral gear 46, eliminate helical gear backlash.
Consult Fig. 9, described bearing bridge assembly 19 by bearing seat 51, bearing bracket 52, take bar 53, bearing cap 54 forms; Two bearing brackets 52 and mounting groove on the line slideway support 23 merga pass screw that matches is fixed, and joins burr-drill pin-and-hole after debugging completes, and squeezes into taper pin; Two bearing seats tankage same and bearing bracket 52 merga pass screw that matches is fixed, and joins burr-drill pin-and-hole after debugging completes, and squeezes into taper pin; In order to keep the stability of structure, use screw to take bar 53 by two and be fixed in diaxon bearing 51; Bearing cap 54 is arranged on bearing seat 51 by screw.
Consult Figure 10, described hydraulic pressure cylinder assembly 12 is comprised of loading hydraulic cylinder 55, hydraulic cylinder mounting flange 56, spline slide bar 57, spline joint 58, displacement transducer 37, displacement transducer erecting frame 38; The boss that loading hydraulic cylinder 55 is installed end face matches with the center pit by hydraulic cylinder mounting flange 56, and makes to be screwed; Spline slide bar 57 is fixed by screws in the top of loading hydraulic cylinder 55; Displacement transducer erecting frame 38 is fixed by screws in the bottom of loading hydraulic cylinder 55, displacement transducer 37 is clamped in the circular hole of displacement transducer erecting frame 38 formation simultaneously; The boss of hydraulic cylinder mounting flange 56 matches with the center pit of mounting bracket b11, and uses screw to be fixed together, and spline slide bar 57 and displacement transducer 37 stretch out by the through hole on mounting bracket b11; Spline joint 58 is arranged on the end of loading hydraulic cylinder 55 pressurized struts, and the internal thread of the end of the external thread of power sensor connector a14 and loading hydraulic cylinder 55 operating bars matches and merges fixedly spline joint 58; Spline slide bar 57 matches with spline joint 58, prevents that loading hydraulic cylinder 55 operating bars from rotating; Displacement transducer 37 is fixing by two nuts and spline joint 58.
Tested actuator joint a20 and tested actuator joint b24 two ends are processed with the external thread that rotation direction is contrary, the external thread of standard rotation direction matches with the internal thread of tested actuator 32, the external thread of one end coordinates with helical rack support 40 and spherical hinge bar 31 respectively in addition, and all uses thin nut locking.
Power sensor connector a14 and power sensor connector b16 one end are processed with internal thread, for and power sensor 15 on external thread coordinate, the other end is processed with external thread and matches with the internal thread of loading hydraulic cylinder 55 and stiffness simulation device joint 10 respectively, and all uses thin nut locking.
The mounting means of loading hydraulic cylinder 55 is that forward flange end face is installed, and by concentrated hydraulic oil source, supplies with hydraulic oil, and adopts mechanical electronic hydraulic pressure valve to control.Loading hydraulic cylinder 55 mainly contains three kinds of control models: velocity mode, shift simulation, force mode.
Tested actuator in this example 32 adopts dismountable ball pivot to install, by changing tested actuator joint a20 and the structure of tested actuator joint b24 and the size of tested actuator assembly 5 just applicable to the test of multiple linear electromechanical actuator; The internal force bar 17 that simultaneously can change flexibly different length is to be suitable for the test of different size and different range linear electromechanical actuators.
Claims (3)
- One kind can analog operation installation environment linear electromechanical actuator performance test experiment table, it is characterized in that: mainly comprise basic platform (1), mounting bracket a(2), stiffness simulation device assembly (3), ball pivot assembly (4), tested actuator assembly (5), inertia simulation device assembly (6), helical rack bracket component (7), the double-helical-tooth gap transmission component (8) that disappears, helical rack (9), stiffness simulation device joint (10), mounting bracket b(11), hydraulic pressure cylinder assembly (12), plug cock (13), power sensor connector a(14), power sensor (15), power sensor connector b(16), internal force bar (17), proximity transducer (18), bearing bridge assembly (19), tested actuator joint a(20), proximity transducer mounting bracket (21), line slideway (22), line slideway support (23), tested actuator joint b(24), the basic platform that contains oil groove (1) is used for supporting whole experiment table parts, mounting bracket a(2) be bolted on basic platform (1) upper, and dive key (25) is installed in bottom positions, line slideway support (23) and mounting bracket b(11) by with mounting bracket a(2) identical mode is fixed on basic platform (1).All install by high-strength bolt and two supports at the two ends of two internal force bars (17), forms the internal force system of a sealing; Experiment table is provided with two stiffness simulation device assemblies (3), with mounting bracket a(2) the stiffness simulation device that is connected is for simulating the installation rigidity of steering wheel, with power sensor connector b(16) the stiffness simulation device that is connected is for the rigidity of simulated flight device rudder face; With mounting bracket a(2) the stiffness simulation device assembly (3) that is connected is connected by screw; Stiffness simulation device assembly (3) adopts screw to be connected with the stiffness simulation device joint (10) of its right-hand member, and stiffness simulation device joint (10) coordinates with the external thread of the ball pivot begin chain (29) of ball pivot assembly (4) by internal thread; Tested actuator joint b(24) external thread of one end and the screw-internal thread fit of ball pivot assembly (4), the external thread of the other end and tested actuator (32) afterbody screw-internal thread fit, and all with thin nut, lock at connection of thread; Tested actuator assembly (5) is arranged on line slideway (22) by straight-line guide rail slide block (39); Tested actuator assembly (5) with helical rack bracket component (7) by tested actuator joint a(20) through threaded engagement, be connected; Helical rack bracket component (7) bottom is provided with two straight-line guide rail slide blocks (39), and is arranged on line slideway (22); It is upper that helical rack (9) is arranged on helical rack support (40) by screw and holding screw, equipped taper pin after completing assembling and setting; Bearing bridge assembly (19) is used screw and taper pin to be arranged on line slideway support (23); Bearing seat (51) clearance fit in the bearing (44) that double-helical-tooth disappears in gap transmission component (8) and bearing bridge assembly (19), helical rack (9) is meshed by fixedly spiral gear (45) and the compression spiral gear (46) disappearing in gap transmission component (8) with double-helical-tooth, rectilinear motion is converted into rotatablely move drive inertia simulation device assembly (6) to rotate; The transmission shaft (50) that double-helical-tooth disappears in gap transmission component (8) is connected with the mounting flange (43) of inertia simulation device assembly (6) by key and screw; It is upper that two proximity transducers (18) are all arranged on proximity transducer mounting bracket (21) by nut, and by screw, be arranged on the both sides of helical rack bracket component (7) direction of motion, for limiting the range of movement of helical rack bracket component (7); The right-hand member of helical rack bracket component (7) is connected mutually by screw thread and ball pivot assembly (4), and the external thread of ball pivot assembly (4) is connected with the internal thread of stiffness simulation device assembly (3) left end stiffness simulation device joint (10); The stiffness simulation device joint (10) at stiffness simulation device assembly (3) and its two ends adopts screw to be connected, the internal thread of the stiffness simulation device joint (10) of stiffness simulation device assembly (3) right-hand member and power sensor connector b(16) external thread match; Power sensor connector b(16) internal thread of the other end matches with the external thread of power sensor (15); Hydraulic pressure cylinder assembly (12) is by hydraulic cylinder mounting flange (56) and mounting bracket b(11) be connected; Power sensor connector a(14) external thread matches with the internal thread of hydraulic pressure cylinder assembly (12) operating bar.The internal thread of the other end matches with the external thread of power sensor (15).
- 2. a linear electromechanical actuator performance test experiment table claimed in claim 1, is characterized in that: described stiffness simulation device assembly (3) is by stiffness simulation device side plate (26), stiffness simulation plate (27), and stiffness simulation device press strip (28) forms; The center of stiffness simulation plate (27) is processed with positioning boss, at the groove that has of both sides symmetry, and has scale at the region processing of groove; During installation, the positioning boss of stiffness simulation plate (27) and mounting bracket a(2) circular groove or the center pit of stiffness simulation device joint (10) match to merge and adopt screw to fix; Stiffness simulation device side plate (26), is connected by screw together between them, and uses countersunk external toothed lock washer locking for being connected two blocks of stiffness simulation plates (27) with stiffness simulation device press strip (28).In use, by regulating stiffness simulation device side plate (26) and the position of stiffness simulation device press strip (28) to change the simulation rigidity of stiffness simulation device, when they are positioned at different scale values, stiffness simulation device assembly (3) just can be simulated different rigidity values.
- 3. a linear electromechanical actuator performance test experiment table claimed in claim 1, is characterized in that: described inertia simulation device assembly (6) is comprised of inertia dish (41), balancing weight (42), mounting flange (43); Balancing weight (42) coordinates with the working groove on inertia dish (41) spoke, and uses screw that two balancing weights (42) are clamped on the spoke of inertia dish (41), and four spokes are respectively installed two balancing weights (42); On the spoke of inertia dish (41), demarcate and have scale, be in course of adjustment and need allow balancing weight (42) on each spoke in identical position; By regulating the distance at balancing weight and inertia dish (41) center just can regulate the size of inertia simulation device assembly (6) simulated inertia; The center pit of inertia dish (41) location of having matched with the boss of mounting flange (43) end, and use bolt that inertia dish (41) is fixed on mounting flange (43); It is fixing that mounting flange (43) passes through flat key and end face screw and transmission shaft (50).
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