CN207280768U - The double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand - Google Patents
The double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand Download PDFInfo
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- CN207280768U CN207280768U CN201721226356.2U CN201721226356U CN207280768U CN 207280768 U CN207280768 U CN 207280768U CN 201721226356 U CN201721226356 U CN 201721226356U CN 207280768 U CN207280768 U CN 207280768U
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Abstract
It the utility model is related to a kind of double short axles of EMU hydraulic actuator exciting and swing earthing or grounding means testing stand.The testing stand tests diagonal brace portal frame assembly by twin shaft,Single short axle Three Degree Of Freedom exciting general assembly body,Single shaft longitudinal direction hydraulic cylinder reaction supporting seat and 50 tons of steel plate foundation ground compositions,Single short axle Three Degree Of Freedom exciting general assembly body is two sets,Structure is identical,Respectively symmetrically it is installed on the both sides of twin shaft experiment diagonal brace portal frame assembly,Single short axle Three Degree Of Freedom exciting general assembly body is often covered laterally across connecting rod cross-tie with twin shaft experiment diagonal brace portal frame assembly to be connected,It is connected longitudinally through the fixed actuator assembly of longitudinal 30T20 strokes cylinder body with single shaft longitudinal direction hydraulic cylinder reaction supporting seat,It is vertical to be fixed on by the two vertical fixed actuator assembly of 30T20 strokes cylinder body on 50 tons of steel plate foundation grounds,Passing power,Two sets of single short axle Three Degree Of Freedom exciting general assembly bodies share two groups of test earthing or grounding means and test bearing,Result of the test is detected by contrast test.
Description
Technical field
It the utility model is related to a kind of rail vehicle Train Parameters Detecting data, more specifically, the utility model
It is related to a kind of double short axles of EMU hydraulic actuator exciting and swings earthing or grounding means testing stand.
Background technology
At present, on the premise of carrying out railway speed raising principles and policies in China, the speed of service of China's rail vehicle has
Very big raising.This also causes EMU technology to quickly grow, and is had reached at present in the EMU max. speed of operation
350km/h, the EMU max. speed in development is already close to 500km/h.But with the raising of speed, the safety of EMU
Sex chromosome mosaicism becomes increasingly conspicuous, such as the brush of earthing or grounding means and contact disc excessive wear, causes bearing running hot, seriously affects driving peace
Entirely.
Often problem appear to is that the brush and contact disc excessive wear of earthing or grounding means in actual driving, the carbon dust of generation is worn away
Enter axle end bearing with " dust " such as copper powders, cause bearing running hot, or even lead to and cut axis accident, seriously affect traffic safety, because
This, it should is to EMU earthing or grounding means is tested and checked, the double short axles of special utility model EMU hydraulic actuator exciting
Earthing or grounding means testing stand is swung to verify the reliability of motor-car axle head grounding device.
Utility model content
Technical problem to be solved in the utility model is to simulate the practical working situation of actual EMU earthing or grounding means, solution
Certainly the abrasion of earthing or grounding means is with destroying problem, there is provided a kind of double short axles of EMU hydraulic actuator exciting swing earthing or grounding means examination
Test platform.
In order to solve the above technical problems, the utility model adopts the following technical scheme that realization, be described with reference to the drawings as
Under：
A kind of double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand, and diagonal brace portal frame is tested by twin shaft
Assembly 1, single short axle Three Degree Of Freedom exciting general assembly body 2, single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3 and 50 tons of steel plate bases
Ground 4 forms, and the twin shaft experiment diagonal brace portal frame assembly 1 is bolted on 50 tons of 4 centers of steel plate foundation ground and puts down
On face, the list short axle Three Degree Of Freedom exciting general assembly body 2 is two sets, and structure is identical, is respectively symmetrically tested installed in twin shaft
The both sides of diagonal brace portal frame assembly 1, the list short axle Three Degree Of Freedom exciting general assembly body 2 are connected by shaft end ground connection hydraulic exciting
Bar assembling ligand 19, the fixed actuator assembly 21 of longitudinal direction 30T20 stroke cylinder bodies and two vertical 30T20 strokes cylinder body are fixed
Formula actuator assembly 20 forms, described often to cover single short axle Three Degree Of Freedom exciting general assembly body 2 laterally across connecting rod laterally drawing
Bar 25 is connected with twin shaft experiment diagonal brace portal frame assembly 1, is assembled longitudinally through the fixed actuator of longitudinal 30T20 strokes cylinder body
Body 21 is connected with single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3, is assembled by adjusting the fixed actuator of longitudinal direction 30T20 stroke cylinder bodies
Vertically moving for the delivery rate single short axle Three Degree Of Freedom exciting general assembly body 2 of control of body 21, it is vertical vertical by two
The fixed actuator assembly 20 of 30T20 stroke cylinder bodies is fixed on 50 tons of steel plate foundation grounds 4, passing power, two sets single short
Axis Three Degree Of Freedom exciting general assembly body 2 shares two groups of test earthing or grounding means and test bearing, and examination is detected by contrast test
Test result.
The twin shaft experiment diagonal brace portal frame assembly 1 is horizontal by 5, two 7.5KW of double short axial links supporting gantry frame
Motor assembly 7 and eight connecting rod ball hinged support assemblies 6 form；
Double 5 both sides of short axial links supporting gantry frame, install a motor support base 8 and four companies by bolt respectively
Bar ball hinged support assembly 6, described two 7.5KW horizontal machines assemblies 7 are separately fixed on motor support base 8, the 7.5KW
Horizontal machine drives the test for ground axis 26 in single short axle Three Degree Of Freedom exciting general assembly body 2 to rotate by belt, Jin Ermo
Intend the operating condition of actual earthing or grounding means；
The 7.5KW horizontal machines assembly 7 is made of 7.5KW horizontal machines and motor two-groove belt pulley 11.
The connecting rod ball hinged support assembly 6 by ball 13 in M10X1 through types forced filling oil cup 12, RS oscillating bearings,
RS oscillating bearing inner ring baffle ring 14, connecting rod spherical joint seat 16 and connecting rod flexural pivot axis 18 form,
The connecting rod spherical joint seat 16 is fixed on double short axial links by hexagon socket head cap screw and supports on gantry frame 5, described
Ball 13 and two interference fits of RS oscillating bearing inner ring baffle ring 14 are sleeved on connecting rod flexural pivot axis 18 in RS oscillating bearings, described
The both ends of connecting rod flexural pivot axis 18 are sleeved on connecting rod spherical joint seat 16, are bolted clamping, ensure the lock of connecting rod flexural pivot axis 18
Tightly；Oil duct is provided with inside the connecting rod flexural pivot axis 18, the exit of oil duct is provided with M10X1 through types forced filling oil cup 12, is used for
To 6 grease lubrication of connecting rod ball hinged support assembly, abrasion is reduced.
The shaft end ground connection hydraulic exciting connection rod set assembly 19 tests axis 24, two link-types of assembly by hydraulic exciting
Vibration type bearing support is formed with brush capsid 22, connecting rod axle box cross-tie 25 and two Type B V belts 23,
Described two link-type vibration type bearing supports and brush capsid 22, are set in hydraulic exciting experiment axis
The both sides of assembly 24, make test for ground axis 26 in hydraulic exciting experiment axis assembly 24 and link-type vibration type bearing support with
35 inner ring of test bearing interference fit in brush capsid 22；Four 25 one end of connecting rod cross-tie pass through interference fit
Type bearing support is vibrated with link-type to be installed together with the connecting rod ball strand assembly 31 in brush capsid 22, the other end leads to
It is interference fitted and is installed together with the connecting rod ball hinged support assembly 6 in twin shaft experiment diagonal brace portal frame assembly 1；Described two
23 one end of root Type B V belt is connected on the experiment axial end belt pulley 32 in hydraulic exciting experiment axis assembly 24, another
End is installed on the motor two-groove belt pulley 11 in twin shaft experiment diagonal brace portal frame assembly 1, due in testing stand operational process
Single short axle Three Degree Of Freedom exciting general assembly body 2 constantly jumps up and down, and the tension that Type B V belt 23 should not be installed is, it is necessary to stay
There is certain free gap, prevent the excessive wear of Type B V belt 23.
The hydraulic exciting experiment axis assembly 24 is by test for ground axis 26, experiment axial end locking belt pulley assembly
27th, short axle head replaces set assembly 36 and ground connection contact disc assembly 28 forms,
The test for ground axis 26 is a two-part multi-diameter shaft, is internally provided with through hole, and the short axle head replaces set
Two of assembly 36 replace the both ends that spindle nose 42 is sleeved on test for ground axis 26, pass through the replacement of 26 inner via hole of test for ground axis
Spindle nose stretching screw 43 is fixed, and is replaced for two and is drilled with bolt hole on spindle nose 42, described for installing ground connection contact disc assembly 28
Experiment axial end locking belt pulley assembly 27 is fixed on the middle part of test for ground axis 26, the experiment axial end by long spline
32 side of experiment axial end belt pulley in locking belt pulley assembly 27 is drilled with the threaded hole of M6, and experiment axis is locked by jackscrew
End face pulley 32, reaches pinpoint purpose；
The middle part for replacing spindle nose stretching screw 43 is welded with four blocks of disc steel plates, withstands on the interior of test for ground axis 26
At circle, for slowing down the vibration of test for ground axis 26；The various informative of spindle nose 42 is replaced, according to the earthing or grounding means model installed
Difference, with commutation it is corresponding replacement spindle nose 42, with make up caused by earthing or grounding means difference mounting distance deficiency.
The experiment axial end locking belt pulley assembly 27 is by experiment axial end belt pulley 32, belt pulley locking set circle spiral shell
Mother 33 and belt pulley lock sleeve 34 form, and 34 inner ring of belt pulley lock sleeve is cylindric, and diameter is slightly larger than test for ground axis
26 diameter, for 34 outer ring cross-section of a belt pulley lock sleeve part to carve type, a part of strip, the strip is used for fixed try
Axial end belt pulley 32 is tested, both have external screw thread using interference fit, the type part car of carving, and set circle spiral shell is locked by belt pulley
The locking of mother 33, guarantee test axial end locking belt pulley assembly 27 is overall to be steadily fixed on test for ground axis 26；
The ground connection contact disc assembly 28 and earthing brush capsid 29 install different model according to test requirements document
Motor-car earthing or grounding means, the length of the wherein ground connection contact disc assembly 28 of the motor-car earthing or grounding means of different model is different, passes through
Control short axle head to replace set assembly 36 to adapt to the earthing or grounding means of different model, avoid waste of materials.
The link-type vibration type bearing support and brush capsid 22 are free by earthing brush capsid 29, three
Degree vibration type bearing support 30, test bearing 35 and connecting rod ball twist assembly 31 and form, and the test bearing 35 is installed on three freely
Inside degree vibration type bearing support 30, Three Degree Of Freedom vibration 30 inner ring of type bearing support is used with 35 outer ring of test bearing to be interference fitted,
35 inner ring of test bearing is connected with test for ground axis 26 using interference fit；Earthing brush capsid 29 is installed on three freely
The outside of degree vibration type bearing support 30, is bolted, and earthing brush capsid 29 is externally connected to high-tension bus-bar, leads to
Electric current is passed to the contact disc in ground connection contact disc assembly 28, the electricity by the brush crossed in earthing brush capsid 29
Brush closely forces together with contact disc, and then passes to test for ground axis 26, until ground, completes circuit；The Three Degree Of Freedom
Vibration type bearing support 30 is provided with four connecting rod balls and twists assembly 31, and diagonal brace gantry is tested by connecting rod cross-tie 25 and twin shaft
The connection of rack-mounted ligand 1.
The Three Degree Of Freedom vibration type bearing support 30 is equipped with the longitudinal hole for being used for installing connecting rods ball strand assembly 31, transverse direction
Through hole, is respectively used to four connecting rod cross-ties 25 of connection, the fixed actuator assembly 21 of longitudinal direction 30T20 stroke cylinder bodies and hangs down
To the fixed actuator assembly 20 of 30T20 stroke cylinder bodies；
The structure that the connecting rod ball twists assembly 31 is similar with connecting rod ball hinged support assembly 6, by M10X1 through type pressure injections
Ball 13, RS oscillating bearing inner ring baffle ring 14, M16 hexagon socket head cap screws 15 and connecting rod flexural pivot axis 18 in lubricating cup 12, RS oscillating bearings
Composition, the connecting rod ball twist assembly 31 directly by being interference fitted the through hole for being installed on Three Degree Of Freedom and vibrating type bearing support 30
Place, mounting means is identical with connecting rod ball hinged support assembly 6, is lubricated by oiling.
The middle part of connecting rod cross-tie 25 is a hollow steel tube, and both sides are welded with two earrings, pass through earrings and company
Bar ball twists assembly 31 and is connected with 13 interference of ball in the RS oscillating bearings of connecting rod ball hinged support assembly 6, and wherein connecting rod ball twists
Ball 13 realizes the rotation of low-angle in the RS oscillating bearings of assembly 31 and connecting rod ball hinged support assembly 6 so that connecting rod is horizontal
The phenomenon for more flexibly, preventing interim card is moved to pull rod 25.
The fixed actuator assembly 21 of longitudinal 30T20 strokes cylinder body and two vertical 30T20 strokes cylinder body are consolidated
Fixed pattern actuator 20 structures of assembly are identical, and the fixed actuator assembly 20,21 of 30T20 strokes cylinder body is by ball head connecting rod
37th, connecting rod support 38,30t spoke types force cell 39 and 30t servo-hydraulics actuator 40 form, the 30t servo-hydraulics
Actuator 40 is on the basis of traditional 30t hydraulic cylinders, is mounted with MOOG three stage servovalves 41, the MOOG three stage servovalves 41
The fuel delivery and delivery rate of 30t servo-hydraulics actuator 40 can accurately be controlled, it is ensured that 30t servo-hydraulics actuator 40
Motion accuracy；The ball head connecting rod 37, connecting rod support 38 and 30t spoke types force cell 39 are sequentially arranged at 30t servos
The head of hydraulic actuator 40, the stress of the 39 real-time delivery 30t servo-hydraulics actuator 40 of 30t spoke types force cell
Situation；37 one end of ball head connecting rod is fixed on connecting rod support 38, and the other end is connected to shaft end ground connection hydraulic pressure by interference fit and swashs
The connecting rod ball of connection rod set of shaking assembly 19 is twisted on assembly 31, passing power.
3 bottom of single shaft longitudinal direction hydraulic cylinder reaction supporting seat is fixed on basic 4 ground of 50 tons of steel plates by the bolt of M24
On face, hydraulic cylinder reaction supporting seat 3 upper surface in single shaft longitudinal direction is bolted a longitudinal direction 30T20 stroke cylinder body by M24 and consolidates
Fixed pattern actuator assembly 21, controls the length travel amount of single short axle Three Degree Of Freedom exciting general assembly body 2；Single shaft longitudinal direction liquid
Cylinder pressure reaction supporting seat bottom 3 is welded entirely through the steel plate of 10mm, and internal welding is connected to deep floor, increase structure entirety
Intensity.
Basic 4 ground of 50 tons of steel plates are in the rectangle of 4500mmX2250mm, and thickness 100mm, top passes through machine
Bed is machined with the bolt hole of M20 and M24, and easy to the installation of each parts, while basic 4 ground of 50 tons of steel plates require well
Flatness, easy to the installation and checkout of equipment.
The beneficial effects of the utility model are compared with prior art：
1. the double short axles of EMU hydraulic actuator exciting described in the utility model swing earthing or grounding means testing stand in dynamic
It can apply external applied load to axle box bearing and earthing or grounding means under operating mode, accurate axial force applied amount is obtained by force cell,
Easy to study the damaged condition of bearing and earthing or grounding means.
2. the double short axles of EMU hydraulic actuator exciting described in, which swing earthing or grounding means testing stand, can pass through servo-hydraulic
The advantages of actuator drives whole equipment movement, inherits hydraulic device large carrying capacity, and control accuracy is high, passes through servo-fluid
Pressure actuator is moved to simulate the operating mode of practical bearing and earthing or grounding means, and result of the test is more accurate.
3. the double short axles of EMU hydraulic actuator exciting described in swing earthing or grounding means testing stand can be by two experiments
Axis in the case of same hydraulic actuator excitation, compares experiment, the reality for analyzing earthing or grounding means is damaged with earthing or grounding means
Reason.
Brief description of the drawings
The utility model will be further described below with reference to the accompanying drawings：
Fig. 1 swings earthing or grounding means test platform structure for the double short axles of EMU hydraulic actuator exciting described in the utility model
The axonometric projection graph of composition；
Fig. 2 is swung in earthing or grounding means testing stand for the double short axles of EMU hydraulic actuator exciting described in the utility model
Twin shaft tests the axonometric projection graph of diagonal brace portal frame assembly；
Fig. 3 is swung in earthing or grounding means testing stand for the double short axles of EMU hydraulic actuator exciting described in the utility model
Twin shaft tests the downward projection figure of diagonal brace portal frame assembly；
Fig. 4 is that double short axial links that twin shaft described in the utility model is tested in diagonal brace portal frame assembly support gantry frame
The axonometric projection graph of frame；
Fig. 5 is the 7.5KW horizontal machine assemblies in twin shaft described in the utility model experiment diagonal brace portal frame assembly
Axonometric projection graph；
Fig. 6 is the connecting rod ball hinged support assembly in twin shaft described in the utility model experiment diagonal brace portal frame assembly
Axonometric projection graph；
Fig. 7 is the connecting rod ball hinged support assembly in twin shaft described in the utility model experiment diagonal brace portal frame assembly
Full sectional view；
Fig. 8 is swung in earthing or grounding means testing stand for the double short axles of EMU hydraulic actuator exciting described in the utility model
The shaft side projection drawing of single short axle Three Degree Of Freedom exciting general assembly body；
Fig. 9 is that the shaft end in single short axle Three Degree Of Freedom exciting general assembly body described in the utility model is grounded hydraulic exciting
The shaft side projection drawing of connection rod set assembly；
Figure 10 is that the hydraulic exciting that shaft end described in the utility model is grounded in hydraulic exciting connection rod set assembly tests axis
The shaft side projection drawing of assembly；
Figure 11 is that the hydraulic exciting that shaft end described in the utility model is grounded in hydraulic exciting connection rod set assembly tests axis
The front view of assembly and link-type vibration type bearing support and brush capsid；
Figure 12 is that the hydraulic exciting that shaft end described in the utility model is grounded in hydraulic exciting connection rod set assembly tests axis
The full sectional view of assembly and link-type vibration type bearing support and brush capsid；
Figure 13 is that link-type described in the utility model vibrates type bearing support and the Three Degree Of Freedom in brush capsid
Vibrate the shaft side projection drawing of type bearing support；
Figure 14 is that link-type described in the utility model vibrates type bearing support and the Three Degree Of Freedom in brush capsid
Vibrate the side view of type bearing support；
Figure 15 is the connecting rod cross-tie that shaft end described in the utility model is grounded in hydraulic exciting connection rod set assembly
Shaft side projection drawing；
Figure 16 is longitudinal 30T20 stroke cylinders in single short axle Three Degree Of Freedom exciting general assembly body described in the utility model
The shaft side projection drawing of the fixed actuator assembly of body；
Figure 17 is swung in earthing or grounding means testing stand for the double short axles of EMU hydraulic actuator exciting described in the utility model
Single shaft longitudinal direction hydraulic cylinder reaction supporting seat axonometric projection graph；
Figure 18 is that the double short axles of EMU hydraulic actuator exciting described in this year utility model swing earthing or grounding means testing stand
Mechanism structure schematic diagram.
In figure：1. twin shaft tests diagonal brace portal frame assembly, 2. single short axle Three Degree Of Freedom exciting general assembly bodies, 3. single shafts
Longitudinal hydraulic cylinder reaction supporting seat, 4.50 tons of steel plate foundation grounds, 5. pairs of short axial links support gantry frame, 6. connecting rod flexural pivot branch
Seat assembly, 7.7.5KW horizontal machine assemblies, 8. motor support bases, 9.320mmX820mm steel plates, 10.7.5KW horizontal machines,
11. motor two-groove belt pulley, 12.M10X1 through type forced filling oil cups, ball in 13.RS oscillating bearings, in 14.RS oscillating bearings
Ring baffle ring, 15.M16 hexagon socket head cap screws, 16. connecting rod spherical joint seats, 17.M24 hexagon socket head cap screws, 18. connecting rod flexural pivot axis, 19. axis
End ground connection hydraulic exciting connection rod set assembly, the 20. vertical fixed actuator assemblies of 30T20 strokes cylinder body, 21. longitudinal directions
The fixed actuator assembly of 30T20 stroke cylinder bodies, 22. link-types vibration type bearing support and brush capsid, 23.B types
V belt, 24. hydraulic excitings experiment axis assembly, 25. connecting rod cross-ties, 26. test for ground axis, 27. experiment axial ends
Lock belt pulley assembly, 28. ground connection contact disc assemblies, 29. earthing brush capsids, 30. Three Degree Of Freedom oscillating modes
Bearing block, 31. connecting rod balls twist assembly, 32. experiment axial end belt pulleys, 33. belt pulleys locking set round nut, 34. belt pulleys
Lock sleeve, 35. test bearings, 36. short axle heads replace set assembly, 37. ball head connecting rods, 38. connecting rod supports, 39.30t spokes
Formula force cell, 40.30t servo-hydraulic actuator, 41.MOOG three stage servovalves, 42. replace spindle nose, and 43., which replace spindle nose, draws
Tight screw rod.
Embodiment
The utility model is explained in detail below in conjunction with the accompanying drawings：
The double short axles of EMU hydraulic actuator exciting described in the utility model, which swing earthing or grounding means testing stand, to test
Abrasion condition when axle box bearing is loaded with earthing or grounding means in dynamic load operating mode, and carry out contrast test.
Refering to Fig. 1, the double short axles of the EMU hydraulic actuator exciting swing earthing or grounding means testing stand and include twin shaft
Test diagonal brace portal frame assembly 1, single short axle Three Degree Of Freedom exciting general assembly body 2, single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3
With 50 tons of steel plate foundation grounds 4.
The twin shaft experiment diagonal brace portal frame assembly 1 is fixed on 50 tons of steel plate bases by M24 hexagon socket head cap screws 17
On ground 4, mounting structure is provided for whole device；Four connecting rod ball hinged support assemblies 6 are fixed by M24 hexagon socket head cap screws 17
On twin shaft experiment diagonal brace portal frame assembly 1, with the connecting rod cross-tie in single short axle Three Degree Of Freedom exciting general assembly body 2
25 are connected, and limit the lateral displacement amount of single short axle Three Degree Of Freedom exciting general assembly body 2.
2 totally two sets of single short axle Three Degree Of Freedom exciting general assembly body, is separately mounted to twin shaft experiment diagonal brace gantry
The both sides of rack-mounted ligand 1, in symmetrical arrangement, two sets of single short axle Three Degree Of Freedom exciting general assembly 2 structures of body are identical,
Single short axle Three Degree Of Freedom exciting general assembly body 2 tests diagonal brace portal frame assembly laterally across connecting rod cross-tie 25 and twin shaft
1 is connected, longitudinally through longitudinal fixed actuator of 30T20 strokes cylinder body in single short axle Three Degree Of Freedom exciting general assembly body 2
Assembly 21 is connected with single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3, by adjusting the fixed actuator of longitudinal direction 30T20 stroke cylinder bodies
The delivery rate single short axle Three Degree Of Freedom exciting general assembly body 2 of control of assembly 21 vertically moves, single short axle Three Degree Of Freedom
2 lower end of exciting general assembly body is connected directly between on 50 tons of steel plate foundation grounds 4 by M24 hexagon socket head cap screws 17, passing power,
Two sets of single short axle Three Degree Of Freedom exciting general assembly bodies 2 share two groups of test earthing or grounding means and test bearing, pass through contrast test
To detect result of the test.
50 tons of steel plate foundation grounds 4 are in the rectangle of 4500mmX2250mm, and thickness 100mm, top passes through machine
Bed is machined with the bolt hole of M20 and M24, and easy to the installation of each parts, 50 tons of steel plate foundation grounds 4 require good plane
Degree, easy to the installation and checkout of equipment.
Refering to Fig. 2 to Fig. 5, twin shaft experiment diagonal brace portal frame assembly 1 supports gantry frame by double short axial links
5th, two 7.5KW horizontal machines assemblies 7 and eight connecting rod ball hinged support assemblies 6 form；Wherein double short axial links supporting dragons
5 bottom of door frame is connected by M24 hexagon socket head cap screws 17 with 50 tons of steel plate foundation grounds 4, determines the installation site of whole device,
, can be by varying the peace of 1 opposite 50 tons of steel plate foundation grounds 4 of twin shaft experiment diagonal brace portal frame assembly according to the requirement of experiment
Holding position, easy to the progress of experiment；In the both sides of double short axial links supporting gantry frame 5, four are installed with by M24 bolts respectively
A connecting rod ball hinged support assembly 6, four connecting rod ball hinged support assemblies 6 are spatially rectangle arrangement, and upper and lower centre-to-centre spacing is
600mm, left and right centre-to-centre spacing are 900mm；Two 7.5KW horizontal machines assemblies 7 are separately fixed at by M16 hexagon socket head cap screws 15
On the motor support base 8 at double 5 middle parts of short axial links supporting gantry frame, 7.5KW horizontal machines 7 drive single short axle three certainly by belt
Rotated by the test for ground axis 26 in degree exciting general assembly body 2, and then simulate the operating condition of actual earthing or grounding means.
Double short axial links supporting gantry frame 5 is overall to be welded using carbon steel sheet, wherein double short axial links branch
Hold the middle part of gantry frame 5 and imitative T-shape support frame is formed by welding by the rectangle steel of three 300mmX300mmX10mm, in both sides
Two gantry bearing diagonal framves have respectively been welded, the steel plate of six 600mmX600mm is welded on to the bottom of frame, with 50 tons of steel plate bases
Plinth ground 4 is connected by M24 hexagon socket head cap screws 17 and fixed, and strengthens the stability of double short axial links supporting gantry frames 5；Double short axles
Both sides are respectively welded with two blocks of 320mmX820mm steel plates for carrying bolt hole on 5 two vertical rectangle steels of link supporting gantry frame
9, easy to fix eight connecting rod ball hinged support assemblies 6；It is welded with the middle part of double 5 horizontal rectangle steels of short axial links supporting gantry frame
Two motor support bases 8, easy to fixed 7.5KW horizontal machines assembly 7；
The 7.5KW horizontal machines assembly 7 includes 7.5KW horizontal machines 10 and motor two-groove belt pulley 11, wherein
7.5KW horizontal machines 10 are fixed on double short axial links by M16 hexagon socket head cap screws 15 and support on gantry frame 5, motor double flute skin
Belt wheel 11 is fixed on 7.5KW horizontal machines 10 by flat key, facilitates the transmission of power.
Refering to Fig. 6 to Fig. 7, the connecting rod ball hinged support assembly 6 includes M10X1 through types forced filling oil cup 12, RS is closed
Ball 13 in bearings, RS oscillating bearing inner ring baffle ring 14, M16 hexagon socket head cap screws 15, connecting rod spherical joint seat 16, hexagonal in M24
Bolt 17 and connecting rod flexural pivot axis 18, wherein connecting rod spherical joint seat 16 are fixed on double short axles by eight M24 hexagon socket head cap screws 17 and connect
On bar supporting gantry frame 5；Ball 13 and RS oscillating bearing inner ring baffle rings in RS oscillating bearing inner ring baffle ring 14, RS oscillating bearings
14 are sequentially sleeved on connecting rod flexural pivot axis 18, using interference fit；The both ends of connecting rod flexural pivot axis 18 are sleeved on connecting rod spherical joint seat
On 16, fixed to clamp by two M16 hexagon socket head cap screws 15, ensure the locking of connecting rod flexural pivot axis 18；Connecting rod flexural pivot axis 18 it is interior
Portion is provided with oil duct, and the exit of oil duct is provided with M10X1 through types forced filling oil cup 12, easy to connecting rod ball hinged support assembly 6
Grease lubrication is carried out, reduces abrasion.
Refering to Fig. 8, single short axle Three Degree Of Freedom exciting general assembly body 2 includes shaft end ground connection hydraulic exciting connection rod set
Assembly 19, the fixed actuator assembly 21 of longitudinal direction 30T20 stroke cylinder bodies and the fixed work of two vertical 30T20 strokes cylinder body
Dynamic device assembly 20, wherein shaft end ground connection hydraulic exciting connection rod set assembly 19 laterally across four connecting rod cross-ties 25 with it is double
Shaft experiment diagonal brace portal frame assembly 1 is fixed together；The lower end of ground connection hydraulic exciting connection rod set assembly 19 in shaft end,
Assembly 31 is twisted by connecting rod ball and is connected to the two vertical fixed actuator assembly 20 of 30T20 strokes cylinder body, while in axis
One end of end ground connection hydraulic exciting connection rod set assembly 19 twists assembly 31 by connecting rod ball and is connected to a longitudinal direction 30T20 stroke
The fixed actuator assembly 21 of cylinder body, passes through the fixed single short axle of actuator assembly control of these three 30T20 stroke cylinder bodies
The movement of Three Degree Of Freedom exciting general assembly body 2, completes vertically moving, hanging down for single short axle Three Degree Of Freedom exciting general assembly body 2
To the movement for moving and sidewindering three degree of freedom；The two vertical fixed actuator assembly 20 of 30T20 strokes cylinder body is directly logical
Cross M24 hexagon socket head cap screws 17 to be fixed on 50 tons of steel plate foundation grounds 4, a fixed actuator of longitudinal direction 30T20 stroke cylinder bodies
Assembly 21 is fixed on single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3 by M24 hexagon socket head cap screws 17.
Refering to Fig. 9, shaft end ground connection hydraulic exciting connection rod set assembly 19 includes hydraulic exciting experiment axis assembly
24th, two link-type vibration type bearing supports and brush capsid 22, connecting rod axle box cross-tie 25 and two three cuticles of Type B
Band 23, two of which link-type vibration type bearing support is identical with the structure of brush capsid 22, is respectively fitted over hydraulic exciting
The both sides of axis assembly 24 are tested, make test for ground axis 26 and link-type vibration profile shaft in hydraulic exciting experiment axis assembly 24
Bearing is interference fitted with 35 inner ring of test bearing in brush capsid 22；Four 25 one end of connecting rod cross-tie passed through
Be full of cooperation and link-type vibration type bearing support with brush capsid 22 connecting rod ball strand assembly 31 be installed together, separately
One end is installed together by being interference fitted with the connecting rod ball hinged support assembly 6 in twin shaft experiment diagonal brace portal frame assembly 1；
Two 23 one end of Type B V belt are connected on the experiment axial end belt pulley 32 in hydraulic exciting experiment axis assembly 24, separately
One end is installed on the motor two-groove belt pulley 11 in twin shaft experiment diagonal brace portal frame assembly 2, it is contemplated that testing stand was run
Single short axle Three Degree Of Freedom exciting general assembly body 2 constantly jumps up and down in journey, and the tension that three cuticle of Type B, 23 band should not be installed, needs
Certain free gap is left, prevents the excessive wear of Type B V belt 23.
Refering to Figure 10 to Figure 12, hydraulic exciting experiment axis assembly 24 includes test for ground axis 26, experiment shaft end
Face locking belt pulley assembly 27, ground connection contact disc assembly 28 and short axle head replace set assembly 36, wherein short axle head
Replace set assembly 36 two replace the both ends that spindle nose 42 is sleeved on test for ground axis 26, pass through a replacement spindle nose stretching screw
43 are fixed on test for ground axis 26, replace for two and are drilled with bolt hole on spindle nose 42, for being grounded the peace of contact disc assembly 28
Dress；Experiment axial end locking belt pulley assembly 27 is fixed on the middle part of test for ground axis 26 by long spline, tests axial end
The side of belt pulley 32 is drilled with the threaded hole of M6, locks experiment axial end belt pulley 32 by jackscrew, reaches pinpoint mesh
's.
The test for ground axis 26 uses motor-car genuine axle, is transformed on its basis, in test for ground axis 25
The through hole in portion is that short axle head replaces the installation of set assembly 36 for convenience, while reduce the quality of device, test for ground axis
26 be a two-part multi-diameter shaft, and experiment axial end locking belt pulley assembly is installed with the second segment multi-diameter shaft at middle part
27。
The short axle head, which replaces set assembly 36, to be included two replacement spindle noses 42 and replaces spindle nose stretching screw 43, its
The middle both ends replaced spindle nose 42 and be sleeved on test for ground axis 26, replace spindle nose stretching screw 43 by one and are fixed, and replace
The middle part of spindle nose stretching screw 43 is welded with four blocks of disc steel plates, withstands at the inner ring of test for ground axis 26, slows down ground connection examination
Test the vibration of axis 26；The various informative of spindle nose 42 is replaced, is connect according to the difference for the earthing or grounding means model installed, such as CRH3 types
Ground device and CRH5 type earthing or grounding means, the corresponding replacement spindle nose 42 with commutation, to make up caused by earthing or grounding means difference
Mounting distance it is inadequate the problem of；It is all genuine standard knots component to replace the ground connection contact disc assembly 28 installed on spindle nose 42,
Have no change.
The experiment axial end locking belt pulley assembly 27 includes experiment axial end belt pulley 32, belt pulley locking set
Round nut 33 and belt pulley lock sleeve 34, its 34 inner ring of middle belt pulley lock sleeve are cylindric, and diameter is slightly larger than test for ground axis
26 diameter, for 34 outer ring cross-section of a belt pulley lock sleeve part to carve type, a part of strip, wherein strip are used for fixed try
Axial end belt pulley 32 is tested, both are using interference fit, and carving type part car has external screw thread, and set round nut is locked by belt pulley
33 locking, it is ensured that experiment axial end locking belt pulley assembly 27 is overall to be steadily fixed on test for ground axis 26.
The link-type vibration type bearing support includes earthing brush capsid 29, three with brush capsid 22
Free degree vibration type bearing support 30, test bearing 35 and connecting rod ball twist assembly 31, and wherein test bearing 35 is installed on three freely
The inside of degree vibration type bearing support 30, Three Degree Of Freedom vibration 30 inner ring of type bearing support are matched somebody with somebody with 35 outer ring of test bearing using interference
Close, 35 inner ring of test bearing is connected with test for ground axis 26 using interference fit；Earthing brush capsid 29 is installed on three
The free degree vibrates the outside of type bearing support 30, is fixed by eight M12 hexagon socket head cap screws, earthing brush capsid 29
High-tension bus-bar is externally connected to, electric current is passed to ground connection contact disc by the brush in earthing brush capsid 29 assembles
Contact disc (brush closely forces together with contact disc) in body 28, and then test for ground axis 26 is passed to, until ground, is completed
Circuit；Single Three Degree Of Freedom vibration type bearing support 30 is provided with four connecting rod balls and twists assembly 31, easy to connecting rod cross-tie 25
With the connection of twin shaft experiment diagonal brace portal frame assembly 1.
The ground connection contact disc assembly 28 and earthing brush capsid 29 all use genuine test block, Liang Zhewei
Two parts of motor-car earthing or grounding means, install the motor-car earthing or grounding means of different model according to test requirements document in experiment, wherein different
The length of the ground connection contact disc assembly of the motor-car earthing or grounding means of model is different, by controlling short axle head to replace set assembly 36
To adapt to the earthing or grounding means of different model, waste of materials is avoided.
Refering to Figure 13 to Figure 14, Three Degree Of Freedom vibration type bearing support 30 is overall to use casting technique, passes through the later stage
Carburizing, polishing grinding, the completion such as drilling manufacture, ensure that the use intensity of Three Degree Of Freedom vibration type bearing support 30；Pass through three
The free degree vibration grade shaft side figure of type bearing support 30 from the point of view of, have four longitudinal holes be used for installing connecting rods ball twist assembly 31, four
Connecting rod ball twists assembly 31 and respectively connected four connecting rod cross-ties 25, limits single short axle Three Degree Of Freedom exciting general assembly body
2 lateral displacement；From the point of view of vibrating 30 side view of type bearing support by Three Degree Of Freedom, there are two cross through hole to be used for installing connecting rods ball
Assembly 31 is twisted, the connecting rod ball of one of side twists assembly 31 and is used to connect longitudinal fixed start of 30T20 strokes cylinder body
Device assembly 21, controls vertically moving for single short axle Three Degree Of Freedom exciting general assembly body 2, and the connecting rod ball of another lower end twists dress
Ligand 31 is used for the fixed actuator assembly 20 of vertical 30T20 strokes cylinder body, controls single short axle Three Degree Of Freedom exciting assembly dress
The vertical movement of ligand 2, the fixed actuator assembly co- controlling list short axle Three Degree Of Freedom exciting of three 30T20 stroke cylinder bodies
The three-degree-of-freedom motion of general assembly body 2.
Refering to Figure 15,25 shape of connecting rod cross-tie is similar to rod-shaped, and middle part is a hollow steel tube, both sides welding
There are two earrings, ball in the RS oscillating bearings of assembly 31 and connecting rod ball hinged support assembly 6 is twisted by earrings and connecting rod ball
13 interference connect, wherein connecting rod ball twist in the RS oscillating bearings of assembly 31 and connecting rod ball hinged support assembly 6 ball 13 can be with
Realize the rotation of low-angle so that connecting rod cross-tie 25 moves more flexible
Refering to Figure 16, the fixed actuator assembly 21 of longitudinal 30T20 strokes cylinder body and two vertical 30T20 rows
Fixed 20 structure of actuator assembly of journey cylinder body is identical, and the position and direction simply installed slightly are distinguished, wherein 30T20 strokes
The fixed actuator assembly of cylinder body is watched including ball head connecting rod 37, connecting rod support 38,30t spoke types force cell 39 and 30t
Hydraulic actuator 40 is taken, 30t servo-hydraulics actuator 40 is on the basis of traditional 30t hydraulic cylinders, is mounted with that MOOG three-levels are watched
Valve 41 is taken, MOOG three stage servovalves 41 can accurately control the fuel delivery and delivery rate of 30t servo-hydraulic actuator, it is ensured that
The motion accuracy of 30t servo-hydraulics actuator 30；Ball head connecting rod 37, connecting rod support 38 and 30t spoke types force cell 39
Be sequentially arranged at the head of 30t servo-hydraulics actuator 40,30t spoke types force cell 39 be installed on connecting rod support 38 with
Between 30t servo-hydraulics actuator 40, the stressing conditions of real-time delivery 30t servo-hydraulics actuator 40；37 one end of ball head connecting rod
It is fixed on connecting rod support 38, the other end is connected to the company of shaft end ground connection hydraulic exciting connection rod set assembly 19 by interference fit
Bar ball is twisted on assembly 31, passing power.
Refering to Figure 17,3 bottom of single shaft longitudinal direction hydraulic cylinder reaction supporting seat is fixed on by M24 hexagon socket head cap screws 17
On 50 tons of steel plate foundation grounds 4, hydraulic cylinder reaction supporting seat 3 upper surface in single shaft longitudinal direction is connected to by M24 hexagon socket head cap screws 17
One fixed actuator assembly 21 of longitudinal direction 30T20 stroke cylinder bodies, controls single short axle Three Degree Of Freedom exciting general assembly body 2
Length travel amount；Single shaft longitudinal direction hydraulic cylinder reaction supporting seat 3 is welded entirely through the steel plate of 20mm, and internal welding, which is connected to, to be added
Strong floor, structural strength are reliable.
Refering to Figure 18, the double short axles of the EMU hydraulic actuator exciting swing the mechanism structure of earthing or grounding means testing stand
Schematic diagram.
The double short axles of EMU hydraulic actuator exciting swing the operation principle of earthing or grounding means testing stand：
The double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand and pass through installed in single short axle Three Degree Of Freedom
The fixed actuator assembly of longitudinal 30T20 strokes cylinder body and two vertical 30T20 strokes cylinder body on exciting general assembly body
Fixed actuator assembly, controls the movement of single short axle Three Degree Of Freedom exciting general assembly body, completes single short axle Three Degree Of Freedom
The vertically moving of exciting general assembly body, vertical movement and the movement for sidewindering three degree of freedom；Two groups of list short axle Three Degree Of Freedoms swash
The general assembly body that shakes can test two groups of earthing or grounding means and test axis respectively, carry out contrast test；EMU hydraulic actuator swashs
Double short axles of shaking swing earthing or grounding means testing stand by testing the 7.5KW horizontal machines on diagonal brace portal frame assembly installed in twin shaft
Assembly drives test for ground axis to rotate, frictional disk and the brush contact high-speed friction at test for ground axis both ends, meanwhile, ground connection electricity
Brush capsid is connected with high-voltage electricity, is directly conveyed to test for ground axis by brush, and conducts to ground, forming circuit,
In the process, the wear extent of private wiper and the anti-galvanic corrosion ability of test for ground axis.
Claims (10)
1. a kind of double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand, rack-mounted by twin shaft experiment diagonal brace gantry
Ligand (1), single short axle Three Degree Of Freedom exciting general assembly body (2), single shaft longitudinal direction hydraulic cylinder reaction supporting seat (3) and 50 tons of steel plates
Foundation ground (4) forms, it is characterised in that：
The twin shaft experiment diagonal brace portal frame assembly (1) is bolted on 50 tons of steel plate foundation ground (4) central planes
On, the list short axle Three Degree Of Freedom exciting general assembly body (2) is two sets, and structure is identical, is respectively symmetrically tested installed in twin shaft
The both sides of diagonal brace portal frame assembly (1), the list short axle Three Degree Of Freedom exciting general assembly body (2) are swashed by shaft end ground connection hydraulic pressure
Connection rod set of shaking assembly (19), the fixed actuator assembly (21) of longitudinal direction 30T20 stroke cylinder bodies and two vertical 30T20 strokes
Fixed actuator assembly (20) composition of cylinder body, the list short axle Three Degree Of Freedom exciting general assembly body (2) that often covers laterally lead to
Cross connecting rod cross-tie (25) with twin shaft experiment diagonal brace portal frame assembly (1) to be connected, longitudinally through longitudinal 30T20 strokes cylinder body
Fixed actuator assembly (21) is connected with single shaft longitudinal direction hydraulic cylinder reaction supporting seat (3), by adjusting longitudinal direction 30T20 strokes
The longitudinal direction of the single short axle Three Degree Of Freedom exciting general assembly body (2) of delivery rate control of the fixed actuator assembly (21) of cylinder body
It is mobile, it is vertical that 50 tons of steel plate bases ground is fixed on by the fixed actuator assembly (20) of two vertical 30T20 strokes cylinder body
On face (4), passing power, two sets of single short axle Three Degree Of Freedom exciting general assembly bodies (2) share two groups of test earthing or grounding means and survey
Bearing is tried, result of the test is detected by contrast test.
2. a kind of double short axles of EMU hydraulic actuator exciting according to claim 1 swing earthing or grounding means testing stand, its
It is characterized in that：
The twin shaft experiment diagonal brace portal frame assembly (1) is horizontal by double short axial links supporting gantry frame (5), two 7.5KW
Motor assembly (7) and eight connecting rod ball hinged support assembly (6) compositions；
Described double short axial links supporting gantry frame (5) both sides, install a motor support base (8) and four companies by bolt respectively
Bar ball hinged support assembly (6), described two 7.5KW horizontal machines assemblies (7) are separately fixed on motor support base (8), institute
State 7.5KW horizontal machines and pass through the test for ground axis (26) in the single short axle Three Degree Of Freedom exciting general assembly body (2) of belt drive
Rotation, and then simulate the operating condition of actual earthing or grounding means；
The 7.5KW horizontal machines assembly (7) is made of 7.5KW horizontal machines and motor two-groove belt pulley (11).
3. a kind of double short axles of EMU hydraulic actuator exciting according to claim 2 swing earthing or grounding means testing stand, its
It is characterized in that：
The connecting rod ball hinged support assembly (6) is by ball in M10X1 through types forced filling oil cup (12), RS oscillating bearings
(13), RS oscillating bearings inner ring baffle ring (14), connecting rod spherical joint seat (16) and connecting rod flexural pivot axis (18) composition,
The connecting rod spherical joint seat (16) is fixed on double short axial links by hexagon socket head cap screw and supports on gantry frame (5), described
Ball (13) and two RS oscillating bearing inner ring baffle rings (14) interference fits are sleeved on connecting rod flexural pivot axis (18) in RS oscillating bearings
On, the both ends of the connecting rod flexural pivot axis (18) are sleeved on connecting rod spherical joint seat (16), are bolted clamping, ensure connecting rod ball
The locking of hinge shaft (18)；Oil duct is provided with inside the connecting rod flexural pivot axis (18), the exit of oil duct is provided with M10X1 through type pressures
Priming cup (12), for connecting rod ball hinged support assembly (6) grease lubrication, reducing abrasion.
4. a kind of double short axles of EMU hydraulic actuator exciting according to claim 1 swing earthing or grounding means testing stand, its
It is characterized in that：
The shaft end ground connection hydraulic exciting connection rod set assembly (19) is by hydraulic exciting experiment axis assembly (24), two link-types
Vibrate type bearing support and brush capsid (22), connecting rod axle box cross-tie (25) and two Type B V belt (23) groups
Into,
Described two link-type vibration type bearing supports and brush capsid (22), are set in hydraulic exciting experiment axis dress
The both sides of ligand (24), make hydraulic exciting test test for ground axis (26) and link-type oscillating mode bearing in axis assembly (24)
Seat is interference fitted with test bearing (35) inner ring in brush capsid (22)；Four connecting rod cross-tie (25) one end lead to
Interference fit twists assembly (31) with the connecting rod ball in brush capsid (22) with link-type vibration type bearing support and installs
Together, the other end is by being interference fitted the connecting rod ball hinged support assembly tested with twin shaft in diagonal brace portal frame assembly (1)
(6) it is installed together；Described two Type B V belts (23) one end is connected to the examination in hydraulic exciting experiment axis assembly (24)
Test on axial end belt pulley (32), the other end is installed on the motor double flute belt in twin shaft experiment diagonal brace portal frame assembly (1)
Take turns on (11), since single short axle Three Degree Of Freedom exciting general assembly body (2) constantly jumps up and down in testing stand operational process, Type B
Tension that V belt (23) should not be installed prevents the excessive mill of Type B V belt (23), it is necessary to leave certain free gap
Damage.
5. a kind of double short axles of EMU hydraulic actuator exciting according to claim 1 swing earthing or grounding means testing stand, its
It is characterized in that：
The hydraulic exciting experiment axis assembly (24) is by test for ground axis (26), experiment axial end locking belt pulley assembly
(27), short axle head replaces set assembly (36) and ground connection contact disc assembly (28) composition,
The test for ground axis (26) is a two-part multi-diameter shaft, is internally provided with through hole, and the short axle head replaces suit
Two of ligand (36) replace the both ends that spindle nose (42) is sleeved on test for ground axis (26), pass through test for ground axis (26) inner via hole
Replacement spindle nose stretching screw (43) it is fixed, replace for two and be drilled with bolt hole on spindle noses (42), for installing ground connection contact disc dress
Ligand (28), the experiment axial end locking belt pulley assembly (27) are fixed in test for ground axis (26) by long spline
Portion, experiment axial end belt pulley (32) side that the experiment axial end is locked in belt pulley assembly (27) are drilled with the screw thread of M6
Hole, locks experiment axial end belt pulley (32) by jackscrew, reaches pinpoint purpose；
Four blocks of disc steel plates are welded with the middle part of the replacement spindle nose stretching screw (43), withstand on the interior of test for ground axis (26)
At circle, for slowing down the vibration of test for ground axis (26)；The various informative of spindle nose (42) is replaced, according to the earthing or grounding means installed
The difference of model, the corresponding replacement spindle nose (42) with commutation, to make up the mounting distance caused by earthing or grounding means difference not
Foot.
6. a kind of double short axles of EMU hydraulic actuator exciting according to claim 5 swing earthing or grounding means testing stand, its
It is characterized in that：
The experiment axial end locking belt pulley assembly (27) is by experiment axial end belt pulley (32), belt pulley locking set circle spiral shell
Female (33) and belt pulley lock sleeve (34) composition, belt pulley lock sleeve (34) inner ring are cylindric, and diameter is slightly larger than ground connection
The diameter of axis (26) is tested, the outer ring cross-section part of belt pulley lock sleeve (34) is to carve type, a part of strip, the strip
For fixed experiment axial end belt pulley (32), both are had external screw thread, are passed through belt using interference fit, the type part car of carving
The locking of wheel locking set round nut (33), guarantee test axial end locking belt pulley assembly (27) are integrally steadily fixed on ground connection
Test on axis (26)；
The ground connection contact disc assembly (28) and earthing brush capsid (29) install different model according to test requirements document
Motor-car earthing or grounding means, the length of the wherein ground connection contact disc assembly (28) of the motor-car earthing or grounding means of different model is different, leads to
Cross and control short axle head to replace set assembly (36) to adapt to the earthing or grounding means of different model, avoid waste of materials.
7. a kind of double short axles of EMU hydraulic actuator exciting according to claim 4 swing earthing or grounding means testing stand, its
It is characterized in that：
The link-type vibration type bearing support is with brush capsid (22) by earthing brush capsid (29), three freedom
Degree vibration type bearing support (30), test bearing (35) and connecting rod ball twist assembly (31) composition, test bearing (35) installation
It is internal in Three Degree Of Freedom vibration type bearing support (30), Three Degree Of Freedom vibration type bearing support (30) inner ring and test bearing (35) outer ring
Using interference fit, test bearing (35) inner ring is connected with test for ground axis (26) using interference fit；Earthing brush housing fills
Ligand (29) is installed on the outside of Three Degree Of Freedom vibration type bearing support (30), is bolted, earthing brush capsid
(29) high-tension bus-bar is externally connected to, electric current is passed to by ground connection contact by the brush in earthing brush capsid (29)
Contact disc in disk assembly (28), the brush closely force together with contact disc, and then pass to test for ground axis (26),
Until ground, completes circuit；The Three Degree Of Freedom vibration type bearing support (30) is provided with four connecting rod balls and twists assembly (31), leads to
Cross the connection of connecting rod cross-tie (25) and twin shaft experiment diagonal brace portal frame assembly (1).
8. a kind of double short axles of EMU hydraulic actuator exciting according to claim 7 swing earthing or grounding means testing stand, its
It is characterized in that：
The Three Degree Of Freedom vibration type bearing support (30) is equipped with the longitudinal hole for being used for installing connecting rods ball strand assembly (31), transverse direction
Through hole, is respectively used to four connecting rod cross-ties (25) of connection, the fixed actuator assembly (21) of longitudinal direction 30T20 stroke cylinder bodies
Actuator assembly (20) fixed with vertical 30T20 strokes cylinder body；
The structure that the connecting rod ball twists assembly (31) is similar with connecting rod ball hinged support assembly (6), by M10X1 through type pressure injections
Ball (13), RS oscillating bearing inner ring baffle rings (14), M16 hexagon socket head cap screws (15) and connecting rod in lubricating cup (12), RS oscillating bearings
Flexural pivot axis (18) forms, and the connecting rod ball twists assembly (31) and is directly installed on Three Degree Of Freedom oscillating mode bearing by interference fit
The through hole of seat (30), mounting means is identical with connecting rod ball hinged support assembly (6), is lubricated by oiling.
9. swing ground connection dress according to a kind of double short axles of EMU hydraulic actuator exciting of 1,4,7,8 any one of them of claim
Put testing stand, it is characterised in that：
It is a hollow steel tube in the middle part of the connecting rod cross-tie (25), both sides are welded with two earrings, pass through earrings and connecting rod
Ball twists assembly (31) and is connected with ball (13) interference in the RS oscillating bearings of connecting rod ball hinged support assembly (6), wherein connecting rod
Ball twists the rotation that ball (13) in the RS oscillating bearings of assembly (31) and connecting rod ball hinged support assembly (6) realizes low-angle,
So that connecting rod cross-tie (25) movement is more flexible, the phenomenon of interim card is prevented.
10. the double short axles of a kind of EMU hydraulic actuator exciting according to claim 1 or 8 swing earthing or grounding means experiment
Platform, it is characterised in that：
The fixed actuator assembly (21) of longitudinal 30T20 strokes cylinder body and two vertical 30T20 strokes cylinder body are fixed
Formula actuator assembly (20) structure is identical, and the fixed actuator assembly of 30T20 strokes cylinder body (20,21) is connected by bulb
Bar (37), connecting rod support (38), 30t spoke types force cell (39) and 30t servo-hydraulics actuator (40) composition, it is described
30t servo-hydraulics actuator (40) is on the basis of traditional 30t hydraulic cylinders, is mounted with MOOG three stage servovalves (41), described
MOOG three stage servovalves (41) can accurately control the fuel delivery and delivery rate of 30t servo-hydraulics actuator (40), it is ensured that
The motion accuracy of 30t servo-hydraulics actuator (40)；The ball head connecting rod (37), connecting rod support (38) and 30t spoke types are surveyed
Force snesor (39) is sequentially arranged at the head of 30t servo-hydraulics actuator (40), the 30t spoke types force cell (39)
The stressing conditions of real-time delivery 30t servo-hydraulics actuator (40)；Ball head connecting rod (37) one end is fixed on connecting rod support (38),
The connecting rod ball that the other end is connected to shaft end ground connection hydraulic exciting connection rod set assembly (19) by interference fit twists assembly (31)
On, passing power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721226356.2U CN207280768U (en) | 2017-09-23 | 2017-09-23 | The double short axles of EMU hydraulic actuator exciting swing earthing or grounding means testing stand |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607337A (en) * | 2017-09-23 | 2018-01-19 | 吉林大学 | The double short axles of EMUs hydraulic actuator exciting swing earthing or grounding means testing stand |
| CN109341998A (en) * | 2018-11-21 | 2019-02-15 | 苏州东菱振动试验仪器有限公司 | A kind of decoupled components and synchronous vibration experimental rig |
-
2017
- 2017-09-23 CN CN201721226356.2U patent/CN207280768U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607337A (en) * | 2017-09-23 | 2018-01-19 | 吉林大学 | The double short axles of EMUs hydraulic actuator exciting swing earthing or grounding means testing stand |
| CN109341998A (en) * | 2018-11-21 | 2019-02-15 | 苏州东菱振动试验仪器有限公司 | A kind of decoupled components and synchronous vibration experimental rig |
| CN109341998B (en) * | 2018-11-21 | 2021-03-02 | 苏州东菱振动试验仪器有限公司 | Decoupling assembly and synchronous vibration test device |
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