CN104048844B - Mix-loaded servo drive system reliability test bench - Google Patents
Mix-loaded servo drive system reliability test bench Download PDFInfo
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- CN104048844B CN104048844B CN201410294084.4A CN201410294084A CN104048844B CN 104048844 B CN104048844 B CN 104048844B CN 201410294084 A CN201410294084 A CN 201410294084A CN 104048844 B CN104048844 B CN 104048844B
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Abstract
The invention discloses a kind of mix-loaded servo drive system reliability test bench, for overcoming prior art load mode simple, the problem that can not reflect the actual condition of servo drive system, testing stand includes servomotor support section, inertia loading section, moment of torsion loading section, vibration humiture loading section and automatically controls part.Servomotor support section is arranged on the left side on ground black iron (1), inertia loading section is arranged on the ground black iron (1) on the right side of servomotor support section, and moment of torsion loading section is arranged on the ground black iron (1) on the right side of inertia loading section；Multidiameter (8) left end shaft coupling in tested servomotor (11) and inertia loading section connects, multidiameter (8) right-hand member of inertia loading section and dynamometer machine (2) output shaft coupler of moment of torsion loading section connect, and the RS 232C port of vibration humiture loading section is connected with the RS 232C port electric wire of the industrial computer (13) automatically controlling part.
Description
Technical field
The present invention relates to a kind of assay device being applied to servo drive system reliability, more precisely, this
Invention relates to a kind of servo drive system realizing inertia and moment of torsion loads and carries out the mixing of reliability test adds
Carry servo drive system reliability test bench.
Background technology
The manufacturing rapid development that develops into of Numeric Control Technology creates chance, the performance of Digit Control Machine Tool and usage quantity
It it is the major criterion weighing a National Industrial development.China has been that Digit Control Machine Tool produces and uses big
State, the Digit Control Machine Tool researched and developed has had great progress in the performances such as precision, speed, multi-shaft interlocked control,
But Digit Control Machine Tool mainly comprise parts servo drive system, its Performance And Reliability level and the world are advanced
Product still has a certain distance, need to improve.Servo drive system has become domestic numerical control machine tool industry and has sent out
One of bottleneck of exhibition, suddenly treats in solving this problem.Therefore, research and development servo drive system reliability test
Device and experimental technique have extremely important practical significance, and the raising of servo drive system reliability level is right
The raising of whole aircraft reliability level plays an important role.
The servo drive system reliability test research of China is started late, and only has some loading method letters at present
Single reliability test.Such as, some testing stand can carry out sky to servo drive system servomotor
Field investigation, or use simple mechanical load, the operating mode of test simulation and real working condition have the biggest difference
Away from, it is impossible to quickly and accurately find out in test trouble location and failure cause.
Summary of the invention
The technical problem to be solved is to overcome current servo drive system reliability testing stand to load
Mode is simple, it is impossible to the problem of actual condition of reflection servo drive system, it is provided that a set of can simulate reality
Border operating mode, the mix-loaded servo drive system that servo drive system carries out moment of torsion and inertia mix-loaded can
By property testing stand.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization: described mixing adds
Carry servo drive system reliability test bench and include servomotor support section, inertia loading section, moment of torsion
Loading section, vibration humiture loading section and automatically control part.
Servomotor support section is arranged on the left side of ground black iron, and inertia loading section is arranged on servomotor and props up
On the ground black iron of support partial right side, moment of torsion loading section is arranged on the ground black iron on the right side of inertia loading section；
The servomotor being arranged in servomotor support section supports the output shaft of the tested servomotor on seat and adopts
Connect with the left end of the multidiameter in No. 2 diaphragm couplings and inertia loading section, in inertia loading section
The right-hand member of multidiameter uses the output shaft of the dynamometer machine in No. 1 diaphragm coupling and moment of torsion loading section to connect,
The axis of rotation of dynamometer machine output shaft, the axis of rotation of No. 1 diaphragm coupling, the axis of rotation of multidiameter, 2
The axis of rotation of number diaphragm coupling and the axis of rotation conllinear of tested servomotor；Vibration humiture loads
Part i.e. vibrates the RS-232C port of humiture test box and the RS-232C of the industrial computer automatically controlled in part
Port electric wire connects, and automatically controls power interface and the tested servomotor electricity of servo amplifier in part
Line connects.
Described servomotor support section includes that servomotor supports seat and motor regulation backing plate.Described watches
Take motor supporting base to be welded by base plate with vertical support wall or be mechanically connected and form, at the bottom of base plate and vertical support wall
The left/right contacts side surfaces of end connects, and the bottom face of base plate is coplanar with the bottom face of vertical support wall, and base plate is with vertical
Angle between straight supporting walls is 90 degree；Base plate is the plate structure part of inverted " t " font iso-cross-section, its
Being symmetrically provided with four U-shaped openings at corner, the center of vertical support wall is provided with round tube hole, flexible
Bore dia, more than the diameter of tested servo motor output shaft, is evenly distributed with four along flexible around round tube hole
The strip through hole of the tested servomotor of the installation different model that the structure of hole radial direction is identical.Motor is adjusted
Joint backing plate is arranged on servomotor and supports below seat, and servomotor supports the bottom surface of seat and regulates backing plate with motor
Top end face contact connect.
Described inertia charger includes that the T-nut that inertia disc, 4 structures are identical, 4 structures are identical
Inertia slide block and the identical bolt of 4 structures.Described inertia disc is a disk, is provided with at disc centre
One round tube hole, is radially provided with 4 identical T-slot of structure, T around the round tube hole of inertia disc
Type groove is provided with scale, the inner end discord round tube hole connection of the T-slot that 4 structures are identical, two adjacent T
Angle between type groove is 90 degree.All it is provided with and spiral shell at the inertia its center that 4 described structures are identical
The round tube hole that bolt is equipped with mutually.The identical T-nut of 4 described structures loads identical T-shaped of 4 structures
For being slidably connected in groove, the inertia slide block that 4 structures are identical is placed on the top of T-nut, uses bolt general
Inertia slide block is connected with the T-nut loaded in T-slot, will fix by the identical inertia slide block of 4 structures
In inertia disc.
Described vibration humiture loading section i.e. vibrates humiture test box, and servo amplifier passes through T-shaped spiral shell
Bolt and fixing with T-slot plane in vibration humiture test box；
Described mix-loaded servo drive system reliability test bench can realize three kinds of operating mode reliability examinations
Test, be servomotor to be carried out reliability test that inertia and moment of torsion load, servomotor is used to respectively
Measure the reliability test loaded and servomotor is carried out the reliability test of moment of torsion loading.
Three kinds of described operating mode reliability tests carry out the reliability that inertia and moment of torsion load to servomotor
Test by servomotor support section, inertia loading section, moment of torsion loading section, vibration humiture loading unit
Divide and automatically control part composition.
The reliability test that servomotor is carried out inertia loading in three kinds of described operating mode reliability tests by
Servomotor support section, inertia loading section, vibration humiture loading section and automatically control part composition.
The reliability test that servomotor is carried out moment of torsion loading in three kinds of described operating mode reliability tests by
Servomotor support section, moment of torsion loading section, vibration humiture loading section and automatically control part composition.
Described in technical scheme motor regulation backing plate include clapboard, locking nut, lower clapboard,
Screw and screw mandrel.Described upper clapboard is the plate structure part from left to right with gradient of rectangle, upper wedge
The middle of shape plate is welded one and is supported seat, supports seat center and is provided with round tube hole, round tube hole axis of rotation
Coplanar with longitudinally asymmetric of upper clapboard, uniform four screwed holes around round tube hole；Center is provided with
The screw of screwed hole is arranged in support seat, is provided with the cross section being parallel to each other with supporting the lateral symmetry of seat
Guide rail for rectangle.Described lower clapboard is the plate structure part from left to right with gradient of rectangle, under
The gradient that the gradient that clapboard has from left to right has from left to right with upper clapboard is identical, but gradient direction
On the contrary, two ends, lower clapboard left and right are respectively welded one and are supported platform, and left and right two supports the center of platform and is all provided with
Round tube hole, screw mandrel inserts in the round tube hole that lower clapboard (25) two ends, left and right support platform, about lower clapboard
Two ends are provided with the guide-track groove that cross section is rectangle being parallel to each other with supporting the lateral symmetry of platform.Upper clapboard
Being arranged on lower clapboard, the nut sleeve supported in seat being arranged on clapboard is contained on screw mandrel, upper wedge
Two guide rails on shape plate load in two guide-track grooves on lower clapboard, and locking nut is arranged on from right-hand member
Support on the right-hand member of the screw mandrel stretched out in platform round tube hole.
Inertia loading section described in technical scheme also includes that No. 1 bearing support assembly, sleeve, inertia add
Carry and put and No. 2 bearing support assemblies.Multidiameter is disposed with No. 1 to No. 7 different-diameter from right to left
Shaft part, inertia charger is sleeved on No. 3 shaft parts of multidiameter, the inertia disc in inertia charger
Left side contact connection with the right side of No. 4 shaft parts on multidiameter, the left side of sleeve and inertia load
The right side contact of the inertia disc in device connects, the left side in the right side of sleeve and No. 1 bearing support assembly
The left side contact of end cap connects, and sleeve and No. 1 bearing support assembly are sleeved on No. 2 axles of multidiameter
Duan Shang, No. 2 bearing support assemblies are sleeved on No. 6 shaft parts of multidiameter, the right-hand member of No. 2 bearing support assemblies
Lid right side contacts connection, No. 1 bearing support assembly and No. 2 axles with the left side of No. 5 shaft parts on multidiameter
Hold support means employing to be bolted on ground black iron (1).
Described in technical scheme No. 1 bearing support assembly and No. 2 bearing support assembly structures are identical；Described
No. 1 bearing support assembly include right end cap, jump ring, bearing, bearing block and left end cap.Described left end
Being provided with round tube hole at the axis of rotation of lid, be evenly equipped with 4 bolt holes around round tube hole, left end cap uses
Being bolted on the left side of bearing block, the right side of left end cap connects with the left side of bearing outer collar bearing
Touching, bearing is arranged in the central through hole of bearing block, and jump ring is arranged in the jump-ring slot on multidiameter, bearing
The right side of inner bearing collar contacts with the left side of jump ring, is provided with round tube hole at the axis of rotation of right end cap,
Round tube hole circumference uniform distribution bolt hole, right end cap uses and is bolted on the right side of bearing block, right end cap
Left side contacts with the right side of bearing outer collar bearing.
Bearing block described in technical scheme is by the base plate of one piece of horizontal cuboid and hanging down of one piece of cuboid
Straight supporting walls is welded, and the center of the vertical support wall top half of cuboid arranges one for pacifying
The round tube hole of dress bearing, the left and right end face of round tube hole circumferentially is evenly distributed with for left end cap with right
The tapped blind hole that end cap connects, before and after the base plate of horizontal cuboid, both sides are provided with for installing T-bolt
U-shaped open slot.
Moment of torsion loading section described in technical scheme also includes water chiller.Measurement of power in moment of torsion loading section
Machine uses model to be the electric eddy current dynamometer of DW10, and water chiller selects model to be the water chiller of LW35,
Dynamometer machine uses and is bolted on ground black iron, the water inlet on dynamometer machine and outlet by pipeline respectively with
The outlet of water chiller and water inlet connect.
The part that automatically controls described in technical scheme also includes digital control system, Programmable Logic Controller and dynamometer machine
Controller.The RS-232C port of industrial computer is connected with the RS-232C port electric wire of Programmable Logic Controller, work
The RS-232C port of control machine is connected with the RS-232C port electric wire of Dynamometer Control instrument, industrial computer (13)
RS-232C port be connected with the RS-232C port electric wire of digital control system, the input of digital control system and output
The input block of interface and Programmable Logic Controller is connected with output unit wire, and the axle of digital control system controls interface
It is connected with the servo-drive interface of servo amplifier；The encoder interfaces of servo amplifier is with encoder electric wire even
Connect.
Compared with prior art the invention has the beneficial effects as follows:
Mix-loaded servo drive system reliability test bench the most of the present invention uses inertia charger pair
Servo drive system carries out inertia loading, carrys out the analog servomechanism motor load torque when start and stop and speed change, with
Shi Liyong dynamometer machine carries out moment of torsion loading to servo drive system, carrys out analog servomechanism motor suffered at the uniform velocity time
Load torque.By tested servo drive system being simulated the reliability test of real working condition, expose
With excite product bug, provide practical basic data for the reliability growth of product and assessment.
The inertia charger of mix-loaded servo drive system reliability test bench the most of the present invention can root
According to different load requests, continuously adjusting of inertia, body can be realized in the case of being changed without original inertia disc
Show the motility of this testing stand.
The support of the servomotor in mix-loaded servo drive system reliability test bench the most of the present invention
Partial Height continuously adjustable, can be high according to the support section of different servo motor model number regulation servomotors
Degree, it is achieved servo motor output shaft axis, bearing support assembly and dynamometer machine output shaft axis collinear, embodies
The motility of this testing stand and versatility.
Mix-loaded servo drive system reliability test bench the most of the present invention use dynamometer machine watch
Take motor at the uniform velocity time suffered load torque load, dynamometer machine maximum absorption power is 10KW, and maximum speed is
13000rpm, the highest loading moment of torsion is 50Nm.Servomotor high-power, high-revolving is carried out load test
Have more practical significance.
In mix-loaded servo drive system reliability test bench the most of the present invention, digital control system can pass through work
Control machine remote control, and simulated by Programmable Logic Controller (PLC) and industrial computer and to observe digital control system defeated
Enter output signal, control vibration humiture test box by industrial computer simultaneously and realize servo amplifier in reality
Environmental condition under operating mode.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is that servomotor is carried out by mix-loaded servo drive system reliability test bench of the present invention
Inertia and the axonometric projection graph of moment of torsion stress state；
Fig. 2 is that servomotor is carried out by mix-loaded servo drive system reliability test bench of the present invention
The axonometric projection graph of inertia stress state；
Fig. 3 is that servomotor is carried out by mix-loaded servo drive system reliability test bench of the present invention
The axonometric projection graph of moment of torsion stress state；
Fig. 4 is that the inertia in mix-loaded servo drive system reliability test bench of the present invention adds and carries
The breakdown axonometric projection graph put；
Fig. 5 is the bearings dress in mix-loaded servo drive system reliability test bench of the present invention
The breakdown axonometric projection graph put；
Fig. 6 is that the servomotor in mix-loaded servo drive system reliability test bench of the present invention props up
The axonometric projection graph of support seat；
Fig. 7 is the motor spacer in mix-loaded servo drive system reliability test bench of the present invention
The breakdown axonometric projection graph of plate；
Fig. 8 is the motor spacer in mix-loaded servo drive system reliability test bench of the present invention
The breakdown axonometric projection graph of upper clapboard in plate；
Fig. 9 is to automatically control portion in mix-loaded servo drive system reliability test bench of the present invention
Point structural principle and with the schematic block diagram of other parts annexation.
In figure: 1. black iron, 2. dynamometer machine, No. 3.1 diaphragm couplings, No. 4.1 bearing support assemblies, 5.
Sleeve, 6 inertia chargers, No. 7.2 bearing support assemblies, 8. multidiameters, No. 9.2 diaphragm couplings,
10. servomotor support seat, 11. servomotors, 12. motors regulation backing plates, 13. industrial computers, 14. inertia disc,
15.T type nut, 16. inertia slide blocks, 17. bolts, 18. right end caps, 19. jump rings, 20. bearings, 21. axles
Bearing, 22. left end caps, clapboard, 24. locking nuts on 23., 25. times clapboards, 26. screws, 27.
Screw mandrel.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is explained in detail:
Described mix-loaded servo drive system reliability test bench is added by servomotor support section, inertia
Load part, moment of torsion loading section, vibration humiture loading section and automatically control part composition.
Servomotor support section is arranged on the left side of ground black iron 1, and inertia loading section is arranged on servomotor
On ground black iron 1 on the right side of support section, moment of torsion loading section is arranged on the ground black iron 1 on the right side of inertia loading section
On；The servomotor being arranged in servomotor support section supports the tested servomotor 11 on seat 10
Output shaft use the left end of the multidiameter 8 in No. 2 diaphragm couplings 9 and inertia loading section to connect, used
The right-hand member of the multidiameter 8 in amount loading section uses the survey in No. 1 diaphragm coupling 3 and moment of torsion loading section
The output shaft of merit machine 2 connects, the axis of rotation of dynamometer machine 2 output shaft, the gyroaxis of No. 1 diaphragm coupling 3
Line, the axis of rotation of multidiameter 8, axis of rotation and the tested servomotor 11 of No. 2 diaphragm couplings 9
Axis of rotation conllinear；Vibration humiture loading section i.e. vibrates the servo amplifier in humiture test box
Input-output line is connected with external part；Automatically control the industrial computer 13 in part respectively with Programmable Logic Controller
(PLC) connecting with Dynamometer Control instrument, Programmable Logic Controller (PLC) is connected with digital control system, numerical control system
System is connected with servo amplifier.
One, servomotor support section
Described servomotor support section includes that servomotor supports seat 10 and motor regulation backing plate 12.Motor
Regulation backing plate 12 is arranged on servomotor and supports below seat 10, and servomotor supports bottom surface and the electricity of seat 10
The top end face contact of machine regulation backing plate 12 connects.
Refering to Fig. 1 and Fig. 6, described servomotor supports the plank frame part that seat 10 is L-shaped, the end of by
Plate welds with vertical support wall or is mechanically connected and forms, base plate and the left/right contacts side surfaces of vertical support wall bottom
Connecting, the bottom face of base plate is coplanar with the bottom face of vertical support wall, the folder between base plate and vertical support wall
Angle is 90 degree.Base plate is the plate structure part of inverted " t " font iso-cross-section, is symmetrically arranged at its corner
There are four U-shaped openings, are fixed on ground black iron 1 for servomotor being supported seat 10 through T-bolt,
The Cross-section Design of base plate is inverted " t " font, prevents T-bolt from fixing motor support through U-shaped opening
Interfere with servomotor 11 during seat 10.The center of vertical support wall is provided with round tube hole, round tube hole
Diameter is more than the diameter of servomotor 11 output shaft, and is evenly equipped with four around round tube hole along round tube hole radial direction side
To the identical strip through hole of structure, it is possible to realize the servomotor 11 of different model by four strip holes with
The bolt of the vertical support wall in motor supporting base 10 is fixing to be connected.
Refering to Fig. 1, Fig. 7 and Fig. 8, described motor regulation backing plate 12 includes clapboard 23, locking
Nut 24, lower clapboard 25, screw 26 and screw mandrel 27.Motor regulation backing plate 12 is placed on motor supporting base
Between 10 and ground black iron 1.
The described plate structure part from left to right with gradient that upper clapboard 23 is rectangle, upper clapboard 23
Middle weld one support seat, support seat center be provided with round tube hole, round tube hole axis of rotation is with upper
Longitudinally asymmetric of clapboard 23 coplanar, uniform four screwed holes around round tube hole；Center is provided with spiral shell
The screw 26 in " fourth " font of pit is arranged in support seat, and uses on screw and upper clapboard 23
Support seat fixing connect, support seat lateral symmetry to be provided with the cross section being parallel to each other be passing through of rectangle
Logical guide rail.
The described plate structure part from left to right with gradient that lower clapboard 25 is rectangle, lower clapboard 25
The gradient that the gradient having from left to right has from left to right with upper clapboard 23 is identical, but the direction phase of gradient
Instead, so, after upper clapboard 23 is arranged on lower clapboard 25, the top end face of upper clapboard 23 and hyposphene
The bottom surface of shape plate 25 is parallel, and lower clapboard about 25 two ends are respectively welded one and supported platform, and left and right two supports platform
Center is provided with round tube hole, and screw mandrel 27 inserts in the support platform round tube hole at lower clapboard about 25 two ends,
Locking nut 24 is arranged on the right-hand member supporting the screw mandrel 27 stretched out platform round tube hole of right-hand member, makes screw mandrel
27 are arranged on the upper surface of lower clapboard 25 by the platform that supports at about 5 two ends；Lower clapboard about 25
Two ends are provided with the through guide-track groove that the cross section being parallel to each other is rectangle with supporting the lateral symmetry of platform, under
Two guide-track grooves on clapboard 25 are equipped with mutually with two guide rails on upper clapboard 23, between the two for sliding
It is dynamically connected.
Upper clapboard 23 is placed on lower clapboard 25, the silk supported in seat being arranged on clapboard 23
Female 26 are sleeved on screw mandrel 27, and two guide rails on upper clapboard 23 load two guide rails on lower clapboard 25
In groove, lower clapboard 25 maintains static, and by rotary screw 27, upper clapboard 23 is along two guide-track grooves
Clapboard 25 is relatively played to move left and right, by the height of regulation motor regulation backing plate 12 so that tested watches
Take axis of rotation and the axis of rotation of dynamometer machine 2 output shaft, No. 1 bearings of output shaft on motor 11
Device 4 and the axis of rotation conllinear of No. 2 bearing support assemblies 7.The height adjustment of tested servomotor 11
After Hao, by locking nut 24, motor regulation backing plate 12 is made to lock.
Two. inertia loading section
Described inertia loading section includes No. 1 bearing support assembly 4, sleeve 5, inertia charger 6,2
Number bearing support assembly 7 and multidiameter 8.
Refering to Fig. 1 and Fig. 5, described No. 1 bearing support assembly 4 and the structure of No. 2 bearing support assemblies 7
Identical.No. 1 described bearing support assembly 4 includes right end cap 18, jump ring 19, bearing 20, bearing block
21 and left end cap 22.
The bearing 20 that No. 1 bearing support assembly 4 of the present invention and No. 2 bearing support assemblies 7 are used
It is deep groove ball bearing, takes aspectant mounting means.It is provided with at the axis of rotation of described left end cap 22
Round tube hole, is evenly equipped with 4 bolt holes around round tube hole, left end cap 22 uses and is bolted to bearing block 21
Left side on, the right side of left end cap 22 contacts with the left side of bearing 20 outer collar bearing and plays location
Effect, bearing 20 is arranged in the central through hole of bearing block 21, and jump ring 19 is arranged on the card on multidiameter 8
In spring groove, it is between bearing 20 and right end cap 18, the right side of bearing 20 inner bearing collar and jump ring 19
Left side contact and play positioning action, prevent the axially-movable of bearing 20, the gyroaxis of right end cap 18
Being provided with round tube hole, round tube hole circumference uniform distribution bolt hole at line, right end cap 18 uses and is bolted to bearing
On the right side of seat 21, right end cap 18 left side contacts with the right side of bearing 20 outer collar bearing to play and determines
Position effect.Connect for interference fit between multidiameter 8 and bearing 20 inner bearing collar.
Refering to Fig. 1 and Fig. 5, described bearing block 21 is by the base plate of one piece of horizontal cuboid and a block length side
The vertical support wall of the bodily form is made of welded connection, and the center of the vertical support wall top half of cuboid sets
Put one for laying multidiameter 8 and the round tube hole of bearing 20, circumferentially equal on the left and right end face of round tube hole
Tapped blind hole is distributed evenly, for connecting with the bolt of left end cap 22, right end cap 18, horizontal cuboid
Base plate before and after both sides be provided with U-shaped open slot, for bearing block 21 being fixed on Horizon through T-bolt
On ferrum 1.
Described multidiameter 8 is axle class formation part, and it is disposed with No. 1～No. 7 different-diameters from right to left
Shaft part, No. 1 shaft part and No. 7 shaft parts at axle two ends have keyway, are respectively used to install No. 1 diaphragm shaft coupling
Device 3 and 9, No. 2 shaft parts of No. 2 diaphragm couplings install No. 1 bearing support assembly 4 and 5, No. 3 axles of sleeve
Section is used for installing 6, No. 4 shaft parts of inertia charger and inertia is loaded respectively by No. 5 shaft parts as the location shaft shoulder
Device 6 and No. 2 bearing support assemblies 7 play the role of positioning, and No. 6 shaft parts install No. 2 bearing support assemblies 7.
Refering to Fig. 4, described inertia charger 6 includes 14,4 T-nut that structure is identical of inertia disc
The bolt 17 that inertia slide block 16 that 15,4 structures are identical is identical with 4 structures.
Described inertia disc 14 is a disk, is provided with a round tube hole at disc centre, flexible in inertia disc 14
4 identical T-slot of structure radially it are provided with, the inner end of the T-slot that 4 structures are identical around hole
Discord round tube hole connection, the T-slot that 4 structures are identical is to be relatively arranged two-by-two, two adjacent T-slot
Between angle be 90 degree.Inertia disc 14 is sleeved on multidiameter 8 as interference by the round tube hole of center
Coordinating, inertia disc 14 rotates along with multidiameter 8, the left side of inertia disc 14 and No. 4 axles of multidiameter 8
Section contacts and plays positioning action, and right side contacts with sleeve 5 and plays positioning action, prevents inertia disc 14
Axially-movable.
Inertia slide block 16 center that 4 described structures are identical is provided with and T-nut 15 and bolt 17
The round tube hole matched, inertia slide block 16 is placed on the top of T-nut 15, and inertia slide block 16 passes through T
Type nut 15 and the threaded of bolt 17 are fixed in inertia disc 14, by T-nut 15 T-shaped
Slide in groove, change the inertia slide block 16 position in inertia disc 14, and set in the T-slot of inertia disc 14
There is scale, it is ensured that after changing the inertia slide block 16 position in inertia disc 14, the inertia slide block in 4 directions
16 still on same circumference, it is ensured that inertia charger 6 dynamic balancing when rotated.Meeting motor load
Under the principle of Inertia Matching, can be by changing the inertia slide block 16 position in T-slot, changing different quality
Inertia slide block 16 or change the inertia slide block 16 position in T-slot simultaneously and change different quality
Inertia slide block 16 changes the inertia of inertia charger 6.
Refering to Fig. 1, when servomotor 11 being carried out inertia and moment of torsion loads, first by inertia charger 6
Being arranged on No. 3 shaft parts by interference fit, No. 4 shaft parts are as positioning the shaft shoulder to inertia charger 6
Positioning action, then No. 1 bearing support assembly 4 and No. 2 bearing support assemblies 7 are separately mounted to No. 2 axles
In section and No. 6 shaft parts, No. 2 bearing support assemblies 7 are played the role of positioning by No. 5 shaft parts as the location shaft shoulder,
Sleeve 5 is arranged on No. 2 shaft parts between No. 1 bearing support assembly 4 and inertia charger 6, to used
Amount charger 6 and No. 1 bearing support assembly 4 play the role of positioning, finally by No. 7 shaft parts of multidiameter 8
Bonded with the right-hand member of servomotor 11 by No. 2 diaphragm couplings 9, No. 1 shaft part is joined by No. 1 diaphragm
Axial organ 3 and the left end bonded transmission moment of torsion of dynamometer machine 2.
Refering to Fig. 2, when servomotor 11 being carried out inertia and loading, first inertia charger 6 was passed through
Cooperation of being full of is arranged on No. 3 shaft parts, and inertia charger 6 is played the role of positioning by No. 4 shaft parts as the location shaft shoulder,
Again No. 1 bearing support assembly 4 and No. 2 bearing support assemblies 7 are separately mounted to No. 2 shaft parts and No. 6 axles
Duan Shang, No. 2 bearing support assemblies 7 are played the role of positioning by No. 5 shaft parts as the location shaft shoulder, and sleeve 5 is installed
On No. 2 shaft parts between No. 1 bearing support assembly 4 and inertia charger 6, to inertia charger
6 and No. 1 bearing support assemblies 4 play the role of positioning, finally by the shaft part 7 of multidiameter 8 by No. 2 diaphragms
Shaft coupling 9 is bonded with the right-hand member of servomotor 11.
Three. moment of torsion loading section
Described moment of torsion loading section includes dynamometer machine 2 and water chiller.
Loading for the moment of torsion realized under the conditions of high rotating speed, Automated condtrol, dynamometer machine 2 should be selected to be had relatively
Little rotary inertia, higher being permitted hold rotating speed, closed loop control and the survey that can be automatically controlled by industrial computer
Merit machine.The present invention, as a example by the model electric eddy current dynamometer as DW10, carries out moment of torsion to servomotor 11 and adds
Carry.Moment of torsion loading can be carried out for a long time at a temperature of allowing for realizing dynamometer machine 2, should make to be water-cooled
Machine cools down, and its class of liquids can be water, aqueous solution or other is without corrosive liquid.The present invention
The use of the electric eddy current dynamometer for coordinating model to be DW10, selecting model is the water chiller of LW35, and
Class of liquids is water.Dynamometer machine 2 use be bolted to ground black iron 1 on, the water inlet on dynamometer machine 2 and
Outlet is connected with outlet and the water inlet of water chiller respectively by pipeline.
Refering to Fig. 1, when servomotor 11 being carried out inertia and moment of torsion loads, one (left) of dynamometer machine 2
End output shaft and No. 1 diaphragm coupling 3 one (right) terminal link connect, No. 1 diaphragm coupling 3 another (left)
End is connected with multidiameter 8 one (right) terminal link, another (left) of multidiameter 8 end and No. 2 diaphragm couplings 9
One (right) terminal link connects, and No. 2 another (left) of diaphragm coupling 9 hold the right-hand member with servomotor 11 to be bonded
Connect.The axis of rotation of dynamometer machine 2 output shaft, the axis of rotation of No. 1 diaphragm coupling 3, multidiameter 8 return
Shaft axis, the axis of rotation of No. 2 diaphragm couplings 9 and the axis of rotation conllinear of tested servomotor 11.
Refering to Fig. 3, when servomotor 11 being carried out moment of torsion and loading, one (left) end output of dynamometer machine 2
One (right) terminal link of axle and No. 2 diaphragm couplings 9 connects, another (left) end of No. 2 diaphragm couplings 9
Bonded with the right-hand member of servomotor 11.The axis of rotation of dynamometer machine 2 output shaft, No. 2 diaphragm couplings 9
The axis of rotation conllinear of axis of rotation and tested servomotor 11.
Four. vibration humiture loading section
Described vibration humiture loading section i.e. vibrates humiture test box.
Described vibration humiture test box can carry out temperature humidity regulation, can be implemented in different frequency simultaneously
Adjustable amplitude under rate, direction of vibration is the frequency sweep motion in X, Y, Z axis three direction.Of the present invention shake
Dynamic temperature humid test box number is TEMI-880, and adjustable temperature range is-20 DEG C～50 DEG C, and humidity adjustable extent is
30～95%R.H, frequency of vibration range of accommodation is 1～600HZ, and amplitude range of accommodation is 1～5mm, and this vibration is warm and humid
Degree proof box is with programmable controller, and is provided with RS-232/485 interface, and box house is provided with upper and lower two-layer,
Two-layer is airtight, and is mutually isolated, and upper strata carries out temperature humidity regulation, and lower floor is provided with frequency sweep vibrating device,
Upper strata is promoted to carry out frequency sweep vibration.
The RS-232C port of described vibration humiture test box and the RS-232C port electric wire of industrial computer 13
Connect, thus realize the industrial computer control to vibration humiture test box parameter.
Five. automatically control part
Refering to Fig. 9, the described part that automatically controls includes industrial computer 13, digital control system, Programmable Logic Controller
(PLC), servo amplifier and Dynamometer Control instrument.
Described industrial computer 13 is provided with the communication interfaces such as RS-232/485, USB, can write control on industrial computer
Processing procedure sequence, the RS-232C port of industrial computer 13 and the RS-232C port of Dynamometer Control instrument, programmable control
The RS-232C port electric wire of the RS-232C port of device processed (PLC) and digital control system connects, thus realize right
Automatically controlling of each connection member.
Described Dynamometer Control instrument model is ET2100, supports the use with dynamometer machine 2, is provided with RS-232/485
The communications such as interface, moment of torsion rotating speed input interface, exciting current interface and control interface, Dynamometer Control instrument
RS-232C port is connected with the RS-232C port electric wire of industrial computer 13, the moment of torsion rotating speed of Dynamometer Control instrument
Input interface is connected with the moment of torsion rotating speed interface electric wire of dynamometer machine 2, the exciting current interface of Dynamometer Control instrument
It is connected with the exciting current interface electric wire of dynamometer machine 2.
Described Programmable Logic Controller (PLC) model is CP1H, is provided with input block, output unit, USB
Interface and RS-232C port, the RS-232C port of Programmable Logic Controller (PLC) and the RS-232C of industrial computer 13
Port electric wire connects, the input block of Programmable Logic Controller (PLC) and output unit and the input of digital control system
Connect with output interface electric wire.
Described digital control system model is GSK988T, including display screen, guidance panel and control panel, is provided with
RS-232/485, USB, input/output interface, axle control interface etc. and control interface, the RS-232C of digital control system
Port is connected with the RS-232C port electric wire of industrial computer 13, the input of digital control system and output interface and can compile
The input block of range controller (PLC) is connected with output unit, and the axle of digital control system controls interface and puts with servo
The servo-drive interface of big device connects.
Described servo amplifier is provided with servo-drive interface, power interface, encoder interfaces etc., and servo is put
The servo-drive interface of big device controls interface electric wire with the axle of digital control system and is connected, the encoder of servo amplifier
Interface is connected with encoder electric wire, and the power interface of servo amplifier is connected with servomotor 11 electric wire.Pass through
Receive and process the signal from digital control system, encoder etc., thus realize the closed loop control of servo drive system
System.
Refering to Fig. 1, Fig. 2 and Fig. 3, mix-loaded servo drive system reliability test bench of the present invention
Three kinds of operating mode reliability tests can be realized, be servomotor is carried out that inertia and moment of torsion load reliable respectively
Property test, servomotor is carried out the reliability test of inertia loading and servomotor is carried out moment of torsion loading
Reliability test.
Three kinds of described operating mode reliability tests carry out the reliability that inertia and moment of torsion load to servomotor
Test by servomotor support section, inertia loading section, moment of torsion loading section, vibration humiture loading unit
Divide and automatically control part composition.
The reliability test that servomotor is carried out inertia loading in three kinds of described operating mode reliability tests by
Servomotor support section, inertia loading section, vibration humiture loading section and automatically control part composition.
The reliability test that servomotor is carried out moment of torsion loading in three kinds of described operating mode reliability tests by
Servomotor support section, moment of torsion loading section, vibration humiture loading section and automatically control part composition.
The operation principle of mix-loaded servo drive system reliability test bench:
Refering to Fig. 1, figure gives schematic diagram when servomotor 11 carries out inertia and moment of torsion load test,
First sleeve 5 and inertia charger 6 are arranged on multidiameter 8, and with No. 1 bearing support assembly 4
With No. 2 bearing support assemblies 7, multidiameter 8 two ends are supported, servomotor 11 is arranged on servomotor and props up
On support seat 10, then servomotor 11 and servomotor support seat 10 are placed on motor regulation backing plate 12,
Then multidiameter 8 one (left) end is connected with servomotor 11 by No. 2 diaphragm couplings 9, by adjusting
The height of joint motor regulation backing plate 12 so that axial line, dynamometer machine 2 on tested servomotor 11 export
The axial line of axle, the axial line of No. 1 bearing support assembly 4 and No. 2 bearing support assembly 7 conllinear, finally will
Another (right) of multidiameter 8 end is connected with dynamometer machine 2 by No. 1 diaphragm coupling 3.
Refering to Fig. 2, figure gives schematic diagram when servomotor 11 carries out inertia load test, first
Sleeve 5 and inertia charger 6 are arranged on multidiameter 8, and with No. 1 bearing support assembly 4 and 2
Multidiameter 8 two ends are supported by number bearing support assembly 7, servomotor 11 is arranged on servomotor and supports seat
On 10, then servomotor 11 and servomotor support seat 10 are placed on motor regulation backing plate 12, then
Multidiameter 8 one (left) end is connected with servomotor 11 by No. 2 diaphragm couplings 9, by regulation electricity
The height of machine regulation backing plate 12 so that the axial line on tested servomotor 11 and No. 2 bearing support assemblies 7
Axial line conllinear.
Refering to Fig. 3, figure gives schematic diagram when servomotor 11 carries out moment of torsion load test, first
Servomotor 11 is arranged on servomotor support on seat 10, then servomotor 11 and servomotor are supported
Seat 10 is placed on motor regulation backing plate 12, by the height of regulation motor regulation backing plate 12 so that tested
Axial line on servomotor 11 and the axial line conllinear of dynamometer machine 2, finally by the output of servomotor 11
Axle is connected with dynamometer machine 2 by No. 1 diaphragm coupling 3.
Refering to Fig. 4, figure gives the schematic diagram of inertia charger 6, multiple quality can be designed and be incremented by successively
Inertia slide block 16, under the principle meeting motor load Inertia Matching, according to rotary inertia and the radius of gyration
Quadratic sum quality be directly proportional, can be by changing the inertia slide block 16 position in inertia disc 14, changing not
The inertia slide block 16 of homogenous quantities or the change inertia slide block 16 position in inertia disc 14 and replacing simultaneously are not
The inertia slide block 16 of homogenous quantities changes the inertia of inertia charger 6, thus changes servomotor 11
Inertia load, it is possible to the servo drive system in the case of being changed without inertia disc, to different loads inertia
Carry out reliability test.
Refering to Fig. 9, control selected certain moment of torsion and speed parameter on interface at the VB of industrial computer 13, pass through
RS-232C port and Dynamometer Control instrument communication, Dynamometer Control instrument according to the parameter set by regulation excitation
Electric current controls dynamometer machine 2 and applies moment of torsion to the servomotor 11 rotated, and controls the speed of servomotor 11,
The torque sensor carried in dynamometer machine 2 and speed probe will detect that moment of torsion and rate signal feed back to survey
Merit machine controller, by the comparison of moment of torsion and velocity measurement with setting value, thus realizes moment of torsion and speed
Closed loop control, monitors the most in real time.Set the chilling temperature of water chiller, provide cold to dynamometer machine 2
But water, it is to avoid dynamometer machine 2 generates heat seriously so that dynamometer machine 2 can run the most normally.
Industrial computer is by RS-232C port and digital control system communication, the numerical control journey manually will worked out at industrial computer
The numerical control program automatically generated after sequence or three-dimensional modeling is transferred to digital control system, can realize remotely controlling.Numerical control
System controls servomotor 11 by servo amplifier and carries volume according to numerical control program action, servomotor 11
Code device, carries out position and speed feedback by encoder to servo amplifier, it is achieved closed loop control.
Servo amplifier is by T-bolt and vibrates fixing with T-slot plane in humiture test box,
Its input-output line can be connected with external part by the fairlead of vibration humiture test box.Vibration humiture is tried
Tryoff is with programmable controller, and is provided with RS-232/485 interface.Interface is controlled by the VB of industrial computer 13
After setting the parameters such as the humiture of needs, amplitude, frequency of vibration, industrial computer 13 and vibration humiture test box
By RS-232C communication, vibration humiture test box is made according to setting value, servo amplifier surrounding to be entered
Row humiture set and X, Y, Z tri-direction frequency sweep vibration, analog servomechanism amplifier be subject to by Indoor Temperature
The impact that humidity and machine vibration produce.
Controlling selected input signal on interface at industrial computer VB, industrial computer passes through with programmable controller PLC
RS232C carries out serial communication to control the break-make of programmable controller PLC, thus by selected input signal
Digital control system is passed to through input interface, can various switches, button signal on simulated machine tool.Digital control system can
Signal is passed to programmable controller PLC through output interface, by the break-make of programmable controller PLC,
Industrial computer carries out serial communication with programmable controller PLC by RS232C, thus controls interface at industrial computer
The output signal of upper observation digital control system, can the signal of each moving component state and indicating fault on simulated machine tool.
Heretofore described embodiment is for the ease of these those skilled in the art it will be appreciated that and apply
The present invention, the present invention is the embodiment of a kind of optimization, or perhaps the most concrete a kind of technical scheme,
It is only applicable to a range of different model, the reliability test of various sizes of servo drive system,
Different model outside scope, the reliability test of various sizes of servo drive system, basic technical side
Case is constant, but the specifications and models of parts used by it will change therewith, as servomotor, servo amplifier and
The selection etc. of the standard components such as dynamometer machine, therefore the invention is not restricted to implement retouching of this kind of more specific technical scheme
State.If relevant technical staff makes in the case of adhering to basic technical scheme of the present invention need not move through
The equivalent structure change of creative work or various amendment are the most within the scope of the present invention.
Claims (7)
1. a mix-loaded servo drive system reliability test bench, it is characterized in that, described mix-loaded servo drive system reliability test bench includes servomotor support section, inertia loading section, moment of torsion loading section, vibration humiture loading section and automatically controls part；
Servomotor support section is arranged on the left side on ground black iron (1), inertia loading section is arranged on the ground black iron (1) on the right side of servomotor support section, and moment of torsion loading section is arranged on the ground black iron (1) on the right side of inertia loading section；The servomotor being arranged in servomotor support section supports the output shaft of the tested servomotor (11) on seat (10) and uses the left end of the multidiameter (8) in No. 2 diaphragm couplings (9) and inertia loading section to connect, the right-hand member of the multidiameter (8) in inertia loading section uses the output shaft of the dynamometer machine (2) in No. 1 diaphragm coupling (3) and moment of torsion loading section to connect, the axis of rotation of dynamometer machine (2) output shaft, the axis of rotation of No. 1 diaphragm coupling (3), the axis of rotation of multidiameter (8), the axis of rotation of No. 2 diaphragm couplings (9) and the axis of rotation conllinear of tested servomotor (11)；The RS-232C port electric wire of vibration humiture loading section the RS-232C port i.e. vibrating humiture test box and the industrial computer (13) automatically controlling in part is connected, and the power interface automatically controlling the servo amplifier in part is connected with tested servomotor (11) electric wire；
Described servomotor support section includes that servomotor supports seat (10) and motor regulation backing plate (12)；
Described servomotor supports seat (10) and is welded by base plate with vertical support wall or be mechanically connected and form, base plate is connected with the left/right contacts side surfaces of vertical support wall bottom, the bottom face of base plate is coplanar with the bottom face of vertical support wall, and the angle between base plate and vertical support wall is 90 degree；Base plate is the plate structure part of inverted " t " font iso-cross-section, four U-shaped openings it are symmetrically provided with at its corner, the center of vertical support wall is provided with round tube hole, round tube hole diameter more than the diameter of tested servomotor (11) output shaft, is evenly distributed with four strip through holes along the tested servomotor (11) of the identical installation different model of the structure of round tube hole radial direction around round tube hole；
Motor regulation backing plate (12) is arranged on servomotor and supports below seat (10), and the top end face of bottom surface and motor regulation backing plate (12) that servomotor supports seat (10) contacts connection；
Described inertia charger (6) includes the bolt (17) that inertia slide block (16) that T-nut (15) that inertia disc (14), 4 structures are identical, 4 structures are identical is identical with 4 structures；
Described inertia disc (14) is a disk, a round tube hole it is provided with at disc centre, 4 identical T-slot of structure radially it are provided with around the round tube hole of inertia disc (14), T-slot is provided with scale, the inner end discord round tube hole connection of the T-slot that 4 structures are identical, the adjacent angle between two T-slot is 90 degree；
Inertia slide block (16) center that 4 described structures are identical is all provided with the round tube hole equipped mutually with bolt (17)；
It is interior for being slidably connected that the T-nut (15) that 4 described structures are identical loads 4 identical T-slot of structure, the inertia slide block (16) that 4 structures are identical is placed on the top of T-nut (15), use bolt (17) to be connected with the T-nut (15) in loading T-slot by inertia slide block (16), will be fixed in inertia disc (14) by the identical inertia slide block (16) of 4 structures；
Described vibration humiture loading section i.e. vibrates humiture test box, and servo amplifier is by T-bolt and fixing with T-slot plane in vibration humiture test box；
Described mix-loaded servo drive system reliability test bench can realize three kinds of operating mode reliability tests, is servomotor carries out reliability test that inertia and moment of torsion load, servomotor to carry out the reliability test of inertia loading and servomotor carries out the reliability test of moment of torsion loading respectively；
The reliability test that inertia and moment of torsion load of carrying out servomotor in three kinds of described operating mode reliability tests by servomotor support section, inertia loading section, moment of torsion loading section, vibration humiture loading section and automatically controls part and forms；
The reliability test that servomotor carries out inertia loading in three kinds of described operating mode reliability tests is by servomotor support section, inertia loading section, vibration humiture loading section and automatically controls part and forms；
The reliability test that servomotor carries out moment of torsion loading in three kinds of described operating mode reliability tests is by servomotor support section, moment of torsion loading section, vibration humiture loading section and automatically controls part and forms.
2. according to the mix-loaded servo drive system reliability test bench described in claim 1, it is characterized in that, described motor regulation backing plate (12) includes clapboard (23), locking nut (24), lower clapboard (25), screw (26) and screw mandrel (27)；
Described upper clapboard (23) is the plate structure part from left to right with gradient of rectangle, the middle of upper clapboard (23) is welded one and is supported seat, support seat center and be provided with round tube hole, round tube hole axis of rotation is coplanar with longitudinally asymmetric of upper clapboard (23), uniform four screwed holes around round tube hole；Center is provided with the screw (26) of screwed hole and is arranged in support seat, is provided with the guide rail that cross section is rectangle being parallel to each other with supporting the lateral symmetry of seat；
Described lower clapboard (25) is the plate structure part from left to right with gradient of rectangle, the gradient that lower clapboard (25) has from left to right is identical with the gradient that upper clapboard (23) has from left to right, but gradient is in opposite direction, lower clapboard (25) two ends, left and right are respectively welded one and are supported platform, the center that left and right two supports platform is all provided with round tube hole, screw mandrel (27) inserts in the round tube hole that lower clapboard (25) two ends, left and right support platform, lower clapboard (25) two ends, left and right are provided with the guide-track groove that cross section is rectangle being parallel to each other with supporting the lateral symmetry of platform；
Upper clapboard (23) is arranged on lower clapboard (25), the screw (26) supported in seat being arranged on clapboard (23) is sleeved on screw mandrel (27), two guide rails on upper clapboard (23) load in two guide-track grooves on lower clapboard (25), and locking nut (24) is arranged on the right-hand member supporting the screw mandrel (27) stretched out platform round tube hole of right-hand member.
3. according to the mix-loaded servo drive system reliability test bench described in claim 1, it is characterized in that, described inertia loading section also includes No. 1 bearing support assembly (4), sleeve (5), inertia charger (6) and No. 2 bearing support assemblies (7)；
nullMultidiameter (8) is disposed with No. 1 shaft part to No. 7 different-diameters from right to left，Inertia charger (6) is sleeved on No. 3 shaft parts of multidiameter (8)，The left side of the inertia disc (14) in inertia charger (6) contacts connection with the right side of No. 4 shaft parts on multidiameter (8)，The left side of sleeve (5) contacts connection with the right side of the inertia disc (14) in inertia charger (6)，The right side of sleeve (5) contacts connection with the left side of the left end cap (22) in No. 1 bearing support assembly (4)，And sleeve (5) and No. 1 bearing support assembly (4) are sleeved on No. 2 shaft parts of multidiameter (8)，No. 2 bearing support assemblies (7) are sleeved on No. 6 shaft parts of multidiameter (8)，Right end cap (18) right side of No. 2 bearing support assemblies (7) contacts connection with the left side of No. 5 shaft parts on multidiameter (8)，No. 1 bearing support assembly (4) uses with No. 2 bearing support assemblies (7) and is bolted on ground black iron (1).
4. according to the mix-loaded servo drive system reliability test bench described in claim 3, it is characterised in that No. 1 described bearing support assembly (4) is identical with No. 2 bearing support assembly (7) structures；No. 1 described bearing support assembly (4) includes right end cap (18), jump ring (19), bearing (20), bearing block (21) and left end cap (22)；
It is provided with round tube hole at the axis of rotation of described left end cap (22), 4 bolt holes it are evenly equipped with around round tube hole, left end cap (22) uses and is bolted on the left side of bearing block (21), the right side of left end cap (22) contacts with the left side of bearing (20) outer collar bearing, bearing (20) is arranged in the central through hole of bearing block (21), jump ring (19) is arranged in the jump-ring slot on multidiameter (8), the right side of bearing (20) inner bearing collar contacts with the left side of jump ring (19), it is provided with round tube hole at the axis of rotation of right end cap (18), round tube hole circumference uniform distribution bolt hole, right end cap (18) uses and is bolted on the right side of bearing block (21), right end cap (18) left side contacts with the right side of bearing (20) outer collar bearing.
5. according to the mix-loaded servo drive system reliability test bench described in claim 4, it is characterized in that, described bearing block (21) is welded by the base plate of one piece of horizontal cuboid and the vertical support wall of one piece of cuboid, the center of the vertical support wall top half of cuboid arranges one for the round tube hole installing bearing (20), the tapped blind hole for being connected with right end cap (18) circumferentially it is evenly distributed with left end cap (22) on the left and right end face of round tube hole, before and after the base plate of horizontal cuboid, both sides are provided with the U-shaped open slot for installing T-bolt.
6. according to the mix-loaded servo drive system reliability test bench described in claim 1, it is characterised in that described moment of torsion loading section also includes water chiller；
Dynamometer machine (2) in moment of torsion loading section uses model to be the electric eddy current dynamometer of DW10, water chiller selects model to be the water chiller of LW35, dynamometer machine (2) uses and is bolted on ground black iron (1), and the water inlet on dynamometer machine (2) is connected with outlet and the water inlet of water chiller by pipeline respectively with outlet.
7. according to the mix-loaded servo drive system reliability test bench described in claim 1, it is characterised in that the described part that automatically controls also includes digital control system, Programmable Logic Controller and Dynamometer Control instrument；
The RS-232C port of industrial computer (13) is connected with the RS-232C port electric wire of Programmable Logic Controller, the RS-232C port of industrial computer (13) is connected with the RS-232C port electric wire of Dynamometer Control instrument, the RS-232C port of industrial computer (13) is connected with the RS-232C port electric wire of digital control system, the input of digital control system is connected with output unit wire with the input block of output interface and Programmable Logic Controller, and the axle of digital control system controls interface and is connected with the servo-drive interface of servo amplifier；The encoder interfaces of servo amplifier is connected with encoder electric wire.
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| CN203825938U (en) * | 2014-05-04 | 2014-09-10 | 浙江海洋学院 | A flywheel experimental instrument with a variable moment of inertia |
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