CN107588949A - The double short axles of EMUs cam exciting swing earthing or grounding means testing stand - Google Patents
The double short axles of EMUs cam exciting swing earthing or grounding means testing stand Download PDFInfo
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- CN107588949A CN107588949A CN201710869556.8A CN201710869556A CN107588949A CN 107588949 A CN107588949 A CN 107588949A CN 201710869556 A CN201710869556 A CN 201710869556A CN 107588949 A CN107588949 A CN 107588949A
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Abstract
A kind of double short axles of EMUs cam exciting swing earthing or grounding means testing stand, mainly test cam exciting portal frame assembly, shaft end ground connection oscillating cam exciting connection rod set assembly, the anti-phase crank assemblby assembly of box bearing housing exciting double-handle and twin shaft experiment longitudinal tie fulcrum bearing assembly by twin shaft to form, the shaft end ground connection oscillating cam exciting connection rod set assembly is connected with twin shaft experiment cam exciting portal frame assembly respectively laterally across connecting rod axle box cross-tie；It is connected longitudinally through connecting rod axle box longitudinal tie with twin shaft experiment longitudinal tie fulcrum bearing assembly；It is vertical to be connected by becoming radius cam exciting connecting rod assembly with the anti-phase crank assemblby assembly of box bearing housing exciting double-handle；Respectively there are two sets of test earthing or grounding means and test bearing in the shaft end ground connection oscillating cam exciting connection rod set assembly, result of the test is detected by contrast test.The present invention simulates the practical working situation of actual EMUs earthing or grounding means, solves the problems, such as the abrasion of earthing or grounding means and destruction.
Description
Technical field
The present invention relates to a kind of rail vehicle Train Parameters Detecting data, it is more particularly related to a kind of
The double short axles of EMUs cam exciting swing 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 EMUs technology to quickly grow, and has reached at present in the EMUs max. speed of operation
350km/h, the EMUs max. speed in development is already close to 500km/h.But with the raising of speed, the safety of EMUs
Sex chromosome mosaicism becomes increasingly conspicuous, such as the brush of earthing or grounding means and contact disc excessive wear, causes bearing running hot, has a strong impact on driving peace
Entirely.
Often problem appear to is that the brush and contact disc excessive wear of earthing or grounding means, carbon dust caused by abrasion in actual driving
Enter axle end bearing with " dust " such as copper powders, cause bearing running hot, or even lead to and cut axle accident, have a strong impact on traffic safety, because
This, it should to EMUs earthing or grounding means is tested and checked, the double short axles of special invention EMUs cam exciting swing ground connection dress
Testing stand is put to verify the reliability of motor-car axle head grounding device.
The content of the invention
The technical problems to be solved by the invention are to simulate the practical working situation of actual EMUs earthing or grounding means, solve to connect
The abrasion of ground device is with destroying problem, there is provided a kind of double short axles of EMUs cam exciting swing earthing or grounding means testing stand.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization, it is described with reference to the drawings as follows：
A kind of double short axles of EMUs cam exciting swing earthing or grounding means testing stand, mainly test cam exciting gantry by twin shaft
Rack-mounted part, shaft end ground connection oscillating cam exciting connection rod set assembly, the anti-phase crank assemblby assembling of box bearing housing exciting double-handle
Body and twin shaft experiment longitudinal tie fulcrum bearing assembly composition, twin shaft experiment cam exciting portal frame assembly (I 1, the II
2) structure is identical, is arranged symmetrically in both sides on steel plate foundation ground, and the shaft end is grounded oscillating cam exciting connection rod set assembly
(I 3, II 4) structure is identical, is arranged symmetrically between twin shaft experiment cam exciting portal frame assembly (I 1, II 2), and lead to
Cross pull bar and connecting rod ball hinged support assembly 10 be fixed on twin shaft experiment cam exciting portal frame assembly (I 1, II 2) and pair
On shaft experiment longitudinal tie fulcrum bearing assembly 5.
The anti-phase crank assemblby assembly of box bearing housing exciting double-handle (the I 6, II 7) structure is identical, by becoming radius
Cam exciting connecting rod assembly 44 is connected with shaft end ground connection oscillating cam exciting connection rod set assembly (I 3, II 4) respectively, transmits
Power, by the eccentric shaft in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle, swash shaft end ground connection oscillating cam
Connection rod set of shaking assembly produces upper and lower irregular vibrations, and then tests the use reliability of earthing or grounding means and test bearing.
Described twin shaft experiment cam exciting portal frame assembly (I 1, II 2) is respectively by cam exciting one side connecting rod branch
Support frame frame 9,7.5KW horizontal machines assembly 11 and four connecting rod ball hinged support assemblies 10 form, four connecting rod ball pivots
Bearing assembly 10 and 7.5KW horizontal machines assembly 11 are arranged on cam exciting one side link supporting framework by bolt respectively
On steel plate on 9, the 7.5KW horizontal machines 15 are grounded oscillating cam exciting connection rod set assembly by belt drive shaft end
Test for ground axle 29 in (I3, II 4) rotates, and then simulates the operating condition of actual earthing or grounding means；
Described 7.5KW horizontal machines assembly 11 includes 7.5KW horizontal machines 15 and motor two-groove belt pulley 16, described
Motor two-groove belt pulley 16 is fixed on 7.5KW horizontal machines 15 by flat key.
Described connecting rod ball hinged support assembly 10 by ball 18 in RS oscillating bearings, RS oscillating bearing inner ring back-up ring 19,
Connecting rod spherical joint seat 21 and connecting rod ball pivot axle 23 form, ball 18 and RS oscillating bearing inner ring back-up ring 19 in the RS oscillating bearings
It is sleeved on connecting rod ball pivot axle 23, using interference fit, the both ends of the connecting rod ball pivot axle 23 are sleeved on connecting rod spherical joint seat 21
On, it is bolted clamping, the inside of the connecting rod ball pivot axle 23 is provided with oil duct, and it is straight that the exit of oil duct is provided with M10X1
Formula forced filling oil cup 17, for lubricating connecting rod ball hinged support assembly 10.
The shaft end ground connection oscillating cam exciting connection rod set assembly (I 3, II 4) is filled by cam exciter test axle respectively
Part 27, structure identical link-type vibration type bearing support and brush capsid, four connecting rod axle box cross-ties 28 and
Two Type B V belts 26 form.
The type vibratory type bearing support is sleeved on convex with brush capsid (I 24, II 25) using interference fit
Take turns the both sides of exciter test axle assembly 27.
Described one end of four connecting rod axle boxes cross-tie 28 is using interference fit and link-type vibration type bearing support and brush
Connecting rod ball in capsid twists assembly 34 and is installed together, and the other end is using interference fit and twin shaft experiment cam exciting
Connecting rod ball hinged support assembly 10 in portal frame assembly is installed together.
Described two Type B V belts 26 one end is connected to the experiment shaft end musculus cutaneus in cam exciter test axle assembly 27
On belt wheel 35, the other end is arranged on the motor two-groove belt pulley 16 in twin shaft experiment cam exciting portal frame assembly.
Type vibratory type bearing support in shaft end ground connection oscillating cam exciting connection rod set assembly (I 3, II 4) with
Brush capsid (I 24, II 25), cam exciting dragon is tested with twin shaft respectively laterally across connecting rod axle box cross-tie 28
Door frame assembly (I 1, II 2) is connected；Filled longitudinally through connecting rod axle box longitudinal tie 40 and twin shaft experiment longitudinal tie fulcrum bearing
Part 5 is connected, the length travel amount of limitation shaft end ground connection oscillating cam exciting connection rod set assembly；It is vertical by becoming radius cam
Exciting connecting rod assembly 44 is connected with the anti-phase crank assemblby assembly of box bearing housing exciting double-handle (I 6, II 7), transmits dynamic
Power；Respectively there are two sets of test earthing or grounding means and test in the shaft end ground connection oscillating cam exciting connection rod set assembly (I 3, II 4)
Bearing, result of the test is detected by contrast test.
The cam exciter test axle assembly 27 is by test for ground axle 29, experiment axial end locking belt pulley assembly
30th, short axle head replaces set assembly 39 and ground connection contact disc assembly 31 forms, and the short axle head replaces set assembly 39
Two replace spindle noses 61 and be sleeved on the both ends of test for ground axle 29, and pass through the replacement spindle nose in test for ground axle 29 and tense spiral shell
Bar 60 is fixed, and dress is by ground connection contact disc assembly 31 on described two replacement spindle noses 61；The experiment axial end locking belt pulley
Assembly 30 is fixed on the middle part of test for ground axle 29 by long spline, and the experiment axial end is locked in belt pulley assembly 30
Experiment axial end belt pulley 35 locked by jackscrew, reach pinpoint purpose.
Described test for ground axle 29 is the internal two-part multi-diameter shaft for being provided with through hole, replacing in the test for ground axle 29
The middle part for changing spindle nose stretching screw 60 is welded with four blocks of disc steel plates, withstands at the inner ring of test for ground axle 29, slows down ground connection
Test the vibration of axle 29；The various informative of spindle nose 61 is replaced, is changed according to the difference for the earthing or grounding means model installed corresponding
Replacement spindle nose 61, for make up caused by earthing or grounding means difference mounting distance deficiency.
The experiment axial end locking belt pulley assembly 30 is by experiment axial end belt pulley 35, belt pulley locking set circle spiral shell
Mother 36 and belt pulley lock sleeve 37 form.
The inner ring of belt pulley lock sleeve 37 is cylindric, and diameter is slightly larger than the diameter of test for ground axle 29, belt wheel lock
For 37 outer ring cross-section of a tight set part to carve type, a part of strip, wherein strip are used for fixation test axial end belt pulley 35,
Both are using interference fit, and carving type part car has external screw thread, and the locking of set round nut 36, guarantee test are locked by belt pulley
Axial end locking belt pulley assembly 30 is overall to be steadily fixed on test for ground axle 29.
The link-type vibration type bearing support is identical with brush capsid (I 24, II 25) structure, by earthing brush
Capsid 32, Three Degree Of Freedom vibration type bearing support 33, test bearing 38 and connecting rod ball twist assembly 34 and formed, the experiment
Bearing 38 is arranged on inside Three Degree Of Freedom vibration type bearing support 33, Three Degree Of Freedom vibration type bearing support 33 test bearing 38,
Using interference fit connection between test for ground axle 29；Earthing brush capsid 32 is arranged on Three Degree Of Freedom oscillating mode bearing
The outside of seat 33, earthing brush capsid 32 is externally connected to high-tension bus-bar, by earthing brush capsid 32
Brush electric current is passed to contact disc in ground connection contact disc assembly 31, the brush closely forces together with contact disc,
And then test for ground axle 29 is passed to, until ground, completes loop；The connecting rod ball of the Three Degree Of Freedom vibration type bearing support 33 twists
Assembly 34 by connecting rod axle box cross-tie 28, connecting rod axle box longitudinal tie 40, become radius cam exciting connecting rod assembly 44,
Respectively longitudinal tie fulcrum bearing assembly 5, case are tested with twin shaft experiment cam exciting portal frame assembly (I 1, II 2), twin shaft
The anti-phase crank assemblby assembly of formula bearing block exciting double-handle (I 6, II 7) connects.
The structure that described connecting rod ball twists assembly 34 is similar with connecting rod ball hinged support assembly 10, by M10X1 through types
Ball 18, RS oscillating bearing inner ring back-up ring 19, M16 hexagon socket head cap screws 20 and connecting rod ball pivot axle in forced filling oil cup, RS oscillating bearings
23 compositions, the connecting rod ball twist assembly 34 directly by being interference fitted the through hole for being arranged on Three Degree Of Freedom and vibrating type bearing support 33
Place, mounting means is identical with connecting rod ball hinged support assembly 10, can oil injecting lubricating.
The anti-phase crank assemblby assembly of box bearing housing exciting double-handle (I 6, II 7) is by 160kw Asynchronous Frequency-variable motors
42nd, both sides crank becomes amplitude bent axle assembly 43, becomes radius cam exciting connecting rod assembly 44, bent axle center support bearing box installed
Part 45 and bent axle inertial flywheel 46 form, and described both sides crank becomes amplitude bent axle assembly 43 and swashed by both sides crank change amplitude
Shake bent axle 51 and mounted in LZ5 types elastic plug tooth-type coupler 47 thereon, eccentric taper sleeve 48, bearing support axle box bearing 49, become
The radius cam exciting connecting-rod bearing 50 and M80 stripped nuts 52 form.
42 power as device exciting of the 160kw Asynchronous Frequency-variables motor, exports controllable torque, and the both sides crank becomes
The one end of amplitude bent axle assembly 43 is connected by LZ5 types elastic plug tooth-type coupler 47 with 160kw Asynchronous Frequency-variables motor 42, separately
One end is connected with the interference fit of bent axle inertial flywheel 46, two support shafts that the both sides crank becomes on amplitude bent axle assembly 43
Axle box bearing 49 is held to connect with the interference fit of crank inboard bearing case 54；Two changes that both sides crank becomes on amplitude bent axle assembly 43
The radius cam exciting connecting-rod bearing 50 is interference fitted connection with becoming radius cam exciting connecting rod assembly 44；Become radius cam exciting
The upper end of connecting rod assembly 44 is directly connected with shaft end ground connection oscillating cam exciting connection rod set assembly, passing power.
The eccentric taper sleeve 48 is directly sleeved on both sides crank and become on amplitude exciting bent axle 51, passes through M80 stripped nuts 52
It is directly fixed, it is different from the relative mounting positions of both sides crank change amplitude exciting bent axle 51 according to eccentric taper sleeve 48, make change radius
Cam exciting connecting rod assembly 44 produces different vertical bounces, realizes the ground connection oscillating cam exciting connection rod set assembling of control shaft end
The purpose of body motion.
Described bent axle center support bearing box installed part 45 is by inner side crankshaft support axle box bearing end cap 53 and crank inner side
Bearing housing 54 forms, and described two inner side crankshaft support axle box bearing end caps 53 are arranged on crank inboard bearing case 54 by bolt
On, internal welding is connected to the round tube shape structure that an inside carries flange, bearing support axle box bearing 49 on crank inboard bearing case 54
Outer ring and round tube inner wall be interference fitted；
Described change radius cam exciting connecting rod assembly 44 is by change radius cam exciting connecting rod bottom 55, change radius cam
Exciting connecting rod top 56, connecting rod top end cap 57, connecting rod top brass 58 and connecting rod lower brasses 59 form,
The change radius cam exciting connecting rod bottom 55 and change radius cam exciting connecting rod top 56 are bolted, and two
Connecting rod lower brasses 59 is accompanied between person, becomes radius cam exciting connecting rod top 56 and connecting rod top brass 58 is installed, outside is logical
The 57 spacing fixation of connecting rod top end cap of both sides is crossed, connecting rod top brass 58 directly bears against the company in link-type vibration type bearing support
Bar ball is twisted on assembly 34, and it is convex that connecting rod lower brasses 59 directly bears against the change radius that both sides crank becomes in amplitude bent axle assembly 43
Take turns on the exciting connecting-rod bearing 50.
Compared with prior art the beneficial effects of the invention are as follows：
1. the double short axles of EMUs cam exciting of the present invention swing earthing or grounding means testing stand can be right under dynamic operation condition
Axle box bearing applies external applied load with earthing or grounding means, and accurate axial force applied amount is obtained by force cell, is easy to study axle
Hold and the damaged condition of earthing or grounding means.
2. the double short axles of EMUs cam exciting described in swing earthing or grounding means test platform structure design advantages of simple, using spiral shell
Each parts are installed on test platform by the mode that bolt is fixedly connected, if a certain parts break down, technical staff can be with
Convenient maintenance or more exchange device.
The double short axles of EMUs cam exciting described in 3. swing earthing or grounding means testing stands can by variable-frequency motor exciting come
Practical bearing and the operating mode of earthing or grounding means are simulated, result of the test is more accurate.
4. the double short axles of EMUs cam exciting described in swing earthing or grounding means testing stand can be by two experiment axles with connecing
Ground device compares experiment in the case of same motor exciting, analyzes the actual damage reason of earthing or grounding means.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the axle survey that the double short axles of EMUs cam exciting of the present invention swing earthing or grounding means test platform structure composition
Perspective view；
Fig. 2 is that the twin shaft experiment that the double short axles of EMUs cam exciting of the present invention are swung in earthing or grounding means testing stand is convex
Take turns the axonometric projection graph of exciting portal frame assembly；
Fig. 3 is the cam exciting one side link supporting in twin shaft of the present invention experiment cam exciting portal frame assembly
The axonometric projection graph of framework；
Fig. 4 is the 7.5KW horizontal machine assemblies in twin shaft of the present invention experiment cam exciting portal frame assembly
Axonometric projection graph；
Fig. 5 is the connecting rod ball hinged support assembly in twin shaft of the present invention experiment cam exciting portal frame assembly
Axonometric projection graph；
Fig. 6 is the connecting rod ball hinged support assembly in twin shaft of the present invention experiment cam exciting portal frame assembly
Full sectional view；
Fig. 7 is that the shaft end ground connection that the double short axles of EMUs cam exciting of the present invention are swung in earthing or grounding means testing stand is put
The shaft side projection drawing of moving cam exciting connection rod set assembly；
Fig. 8 is the cam exciter test axle dress that shaft end of the present invention is grounded in oscillating cam exciting connection rod set assembly
The shaft side projection drawing of part；
Fig. 9 is the cam exciter test axle dress that shaft end of the present invention is grounded in oscillating cam exciting connection rod set assembly
Part, link-type vibration type bearing support and brush capsid I and link-type vibration type bearing support and brush capsid
II front view；
Figure 10 is the cam exciter test axle that shaft end of the present invention is grounded in oscillating cam exciting connection rod set assembly
Assembly, link-type vibration type bearing support and brush capsid I and link-type vibration type bearing support and brush housing assemble
Body II full sectional view；
Figure 11 is that link-type of the present invention vibrates type bearing support and the Three Degree Of Freedom vibration in brush capsid
The shaft side projection drawing of type bearing support；
Figure 12 is that link-type of the present invention vibrates type bearing support and the Three Degree Of Freedom vibration in brush capsid
The side view of type bearing support；
Figure 13 is that the connecting rod axle box that shaft end of the present invention is grounded in oscillating cam exciting connection rod set assembly is laterally drawn
The shaft side projection drawing of bar；
Figure 14 is that the twin shaft that the double short axles of EMUs cam exciting of the present invention are swung in earthing or grounding means testing stand is tested
The shaft side projection drawing of longitudinal tie fulcrum bearing assembly；
Figure 15 is the box bearing in the double short axles swing earthing or grounding means testing stands of EMUs cam exciting of the present invention
The axonometric projection graph of the seat anti-phase crank assemblby assembly of exciting double-handle；
Figure 16 is that the both sides crank in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle of the present invention becomes
The full sectional view of amplitude bent axle assembly；
Figure 17 is to be propped up among the bent axle in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle of the present invention
Hold the axonometric projection graph of bearing housing assembly；
Figure 18 is the change radius cam in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle of the present invention
The axonometric projection graph of exciting connecting rod assembly；
Figure 19 is the change radius cam in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle of the present invention
The full sectional view of exciting connecting rod assembly；
Figure 20 is the mechanism structure letter that the double short axles of EMUs cam exciting of the present invention swing earthing or grounding means testing stand
Figure.
In figure：1. twin shaft tests cam exciting portal frame assembly I, 2. twin shafts experiment cam exciting portal frame assembly
II, 3. shaft ends ground connection oscillating cam exciting connection rod set assembly I, 4. shaft ends ground connection oscillating cam exciting connection rod set assembly II,
5. twin shaft tests longitudinal tie fulcrum bearing assembly, the 6. anti-phase crank assemblby assembly I of box bearing housing exciting double-handle, 7. is box
The anti-phase crank assemblby assembly II of bearing block exciting double-handle, 8.50 tons of steel plate foundation grounds, 9. cam exciting one side link supportings
Framework, 10. connecting rod ball hinged support assemblies, 11.7.5KW horizontal machine assemblies, 12.300mmX500mm steel plates,
13.200mmX400mm steel plates, 14.600mmX600mm steel plates, 15.7.5KW horizontal machines, 16. motor two-groove belt pulleys,
17.M10X1 through type forced filling oil cups, ball in 18.RS oscillating bearings, 19.RS oscillating bearing inner ring back-up rings, hexagonal in 20.M16
Bolt, 21. connecting rod spherical joint seats, 22.M24 hexagon socket head cap screws, 23. connecting rod ball pivot axles, 24. link-types vibration type bearing support and electricity
Brush capsid I, 25. link-types vibration type bearing support and brush capsid II, 26.B type V belt, 27. cams
Exciter test axle assembly, 28. connecting rod axle box cross-ties, 29. test for ground axles, 30. experiment axial end locking belt pulley dresses
Part, 31. ground connection contact disc assemblies, 32. earthing brush capsids, 33. Three Degree Of Freedoms vibration type bearing support, 34. connect
Bar ball twists assembly, 35. experiment axial end belt pulleys, 36. belt pulleys locking set round nut, 37. belt pulley lock sleeves, 38. examinations
Bearing is tested, 39. short axle heads replace set assembly, 40. connecting rod axle box longitudinal ties, and 41. twin shafts experiment cam exciting is longitudinally drawn
Bar reaction supporting seat, 42.160kw Asynchronous Frequency-variable motors, 43. both sides cranks become amplitude bent axle assembly, and 44. change radius cams swash
Shake connecting rod assembly, 45. bent axle center support bearing box installed parts, 46. bent axle inertial flywheels, and 47.LZ5 type spring column pins are tooth-like
Shaft coupling, 48. eccentric taper sleeves, 49. bearing support axle box bearings, 50. become the radius cam exciting connecting-rod bearing, and 51. both sides cranks become
Amplitude exciting bent axle (band spline), 52.M80 stripped nuts, 53. inner side crankshaft support axle box bearing end caps, 54. cranks inner side
Bearing housing, 55. change radius cam exciting connecting rod bottoms, 56. change radius cam exciting connecting rod tops, 57. connecting rod top end caps,
58. connecting rod top brass, 59. connecting rod lower brasseses, 60. replace spindle nose stretching screw, and 61. replace spindle nose.
Embodiment
The present invention is explained in detail below in conjunction with the accompanying drawings：
The double short axles of EMUs cam exciting of the present invention swing earthing or grounding means testing stands can test axle box bearing with
Abrasion condition when earthing or grounding means loads in dynamic load operating mode, and carry out contrast test.
Refering to Fig. 1, it is convex that the double short axles swing earthing or grounding means testing stands of described EMUs cam exciting include twin shaft experiment
Exciting portal frame assembly I 1, twin shaft experiment cam exciting portal frame assembly II 2, shaft end ground connection oscillating cam exciting is taken turns to connect
Bar assembling ligand i 3, shaft end ground connection oscillating cam exciting connection rod set assembly II 4, twin shaft experiment longitudinal tie fulcrum bearing assembling
The anti-phase crank assemblby dress of the anti-phase crank assemblby assembly I 6 of body 5, box bearing housing exciting double-handle, box bearing housing exciting double-handle
Ligand i I 7 and 50 tons of steel plate foundation grounds 8.
Described twin shaft experiment cam exciting portal frame assembly I 1 and twin shaft experiment cam exciting portal frame assembly II
2 structures are identical, and connected mode is identical, by taking twin shaft experiment cam exciting portal frame assembly I 1 as an example, twin shaft experiment cam
Exciting portal frame assembly I 1 is fixed on 50 tons of steel plate foundation grounds 8 by M24 hexagon socket head cap screws 22, is arranged symmetrically, two
Individual cam exciting one side link supporting framework 9 passes through hexagonal spiral shell in M24 at a distance of 2140mm, four connecting rod ball hinged support assemblies 10
Bolt 22 is fixed on twin shaft experiment cam exciting portal frame assembly I 1, is assembled with shaft end ground connection oscillating cam exciting connection rod set
Connecting rod axle box cross-tie 28 in body I 3, shaft end ground connection oscillating cam exciting connection rod set assembly II 4 is connected, and transmits dynamic
Power, limitation shaft end ground connection oscillating cam exciting connection rod set assembly I 3, shaft end ground connection oscillating cam exciting connection rod set assembly II
4 lateral displacement amount；
Described shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end ground connection oscillating cam exciting connection rod set
The structures of assembly II 4 are identical, and connected mode is identical, are with shaft end ground connection oscillating cam exciting connection rod set assembly I 3
Example, shaft end ground connection oscillating cam exciting connection rod set assembly I 3 test convex laterally across connecting rod axle box cross-tie 28 with twin shaft
Wheel exciting portal frame assembly I 1 is connected with twin shaft experiment cam exciting portal frame assembly II 2, longitudinally through connecting rod axle box
Longitudinal tie 40 is connected with twin shaft experiment longitudinal tie fulcrum bearing assembly 5, limitation shaft end ground connection oscillating cam exciting connection rod set
Assembly I 3 length travel amount, shaft end ground connection oscillating cam exciting connection rod set assembly I 3 are assembled lower end by connecting rod ball pivot
Body 34 and the anti-phase crank assemblby assembly I 6 of box bearing housing exciting double-handle and the anti-phase crank assemblby of box bearing housing exciting double-handle
Assembly II 7 is connected, passing power, and shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end ground connection swing are convex
Respectively there are two sets of test earthing or grounding means and test bearing in wheel exciting connection rod set assembly II 4, experiment is detected by contrast test
As a result；
The described anti-phase crank assemblby assembly I 6 of box bearing housing exciting double-handle and box bearing housing exciting double-handle are anti-phase
Crank assemblby assembly 7 structures of II are identical, and both install longitudinal center plane at a distance of 1000mm, and mounting means is identical, with case
Exemplified by the anti-phase crank assemblby assembly I 6 of formula bearing block exciting double-handle, the anti-phase crank assemblby assembling of box bearing housing exciting double-handle
Body I 6 is by M24 hexagon socket head cap screws 22 by the inside of the crank in the anti-phase crank assemblby assembly I 6 of box bearing housing exciting double-handle
Bearing housing 54 is fixed on 50 tons of steel plate foundation grounds 8, by M24 hexagon socket head cap screws 22 that box bearing housing exciting double-handle is anti-phase
160kw Asynchronous Frequency-variables motor 42 in crank assemblby assembly I 6 is fixed on 50 tons of steel plate foundation grounds 8, box bearing housing
One end I 6 of the anti-phase crank assemblby assembly of exciting double-handle and shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and axle
End ground connection oscillating cam exciting connection rod set assembly II 4 is connected, and passing power, passes through the anti-phase song of box bearing housing exciting double-handle
Both sides crank in axle assembly assembly I 6 becomes amplitude exciting bent axle 51, makes shaft end ground connection oscillating cam exciting connection rod set assembling
Body I 6 produces upper and lower irregular vibrations, and then tests the use reliability of earthing or grounding means and test bearing；
Described twin shaft experiment longitudinal tie fulcrum bearing assembly 5 is fixed on 50 tons of steel plates by M24 hexagon socket head cap screws 22
On foundation ground 8, one end by connecting rod axle box longitudinal tie 40 and shaft end be grounded oscillating cam exciting connection rod set assembly I 3 and
Shaft end ground connection oscillating cam exciting connection rod set assembly II 4 is connected, limitation shaft end ground connection oscillating cam exciting connection rod set assembly
I 3 and shaft end ground connection oscillating cam exciting connection rod set assembly II 4 length travel amount；
50 tons of described steel plate foundation grounds 8 are in 4500mmX2250mm rectangle, and thickness 100mm, top passes through machine
Bed is machined with M20 and M24 bolt hole, is easy to the installation of each parts, and 50 tons of steel plate foundation grounds require good plane
Degree, is easy to the installation and checkout of equipment.
Refering to Fig. 2 to Fig. 4, described twin shaft tests cam exciting portal frame assembly I 1 by cam exciting one side connecting rod
Scaffold 9,7.5KW horizontal machines assembly 11 and four connecting rod ball hinged support assemblies 10 form；Its cam exciting list
The bottom of side link supporting framework 9 is connected by M24 hexagon socket head cap screws 22 and 50 tons of steel plate foundation grounds 8, as entirely setting
The rigid support frame of standby structure；Four connecting rod ball hinged support assemblies 10 are swashed by M24 hexagon socket head cap screws 22 installed in cam
On the 300mmX500mm steel plates 12 to shake on unilateral link supporting framework 9, arrangement is rectangle, upper and lower centre-to-centre spacing is 500mm, left
Right centre-to-centre spacing is 1000mm；7.5KW horizontal machines assembly 11 is fixed on cam exciting one side even by M16 hexagon socket head cap screws 20
On the 200mmX400mm steel plates 13 at the middle part of bar scaffold 9,7.5KW horizontal machines 11 are grounded by belt drive shaft end and swung
Test for ground axle 29 in cam exciting connection rod set assembly I3 rotates, and then simulates the operating condition of actual earthing or grounding means.
Described cam exciting one side link supporting framework 9 welds structure using four 300mmX300mmX10mm rectangle steel
Into support frame, rectangle steel is strengthened in side welding, four 600mmX600mm steel plates 14 is welded on to the bottom of framework, with 50 tons
Steel plate foundation ground 8 is connected by M24 hexagon socket head cap screws 22, strengthens integrally-built stability；Cam exciting is unilateral even
Both sides are welded with four pieces and carry bolt hole on 9 two 300mmX300mmX10mm transverse direction rectangle steels of bar scaffold
300mmX500mm steel plates 12, it is easy to fix four connecting rod ball hinged support assemblies；9 liang of cam exciting one side link supporting framework
One block of 200mmX400mm steel plate 12 for carrying bolt hole is welded with the middle part of root 300mmX300mmX10mm transverse directions rectangle steel, is easy to
Fixed 7.5KW horizontal machines assembly 11；
Described 7.5KW horizontal machines assembly 11 includes 7.5KW horizontal machines 15 and motor two-groove belt pulley 16, wherein
7.5KW horizontal machines 15 are fixed on cam exciting one side link supporting frame 9 by M16 hexagon socket head cap screws 20, motor double flute skin
Belt wheel 16 is fixed on 7.5KW horizontal machines 15 by flat key, is easy to earthing or grounding means passing power.
Refering to Fig. 5 to Fig. 6, described connecting rod ball hinged support assembly 10 includes M10X1 through types forced filling oil cup 17, RS is closed
Ball 18 in bearings, RS oscillating bearing inner ring back-up ring 19, M16 hexagon socket head cap screws 20, connecting rod spherical joint seat 21, hexagonal in M24
Bolt 22 and connecting rod ball pivot axle 23, wherein connecting rod spherical joint seat 21 are fixed on cam exciting by eight M24 hexagon socket head cap screws 22
On unilateral link supporting framework 9；Ball 18 and RS oscillating bearings inner ring gear in RS oscillating bearing inner ring back-up ring 19, RS oscillating bearings
Circle 19 is sequentially sleeved on connecting rod ball pivot axle, using interference fit, in RS oscillating bearings in the both sides RS oscillating bearings of ball 18
The inner side of connecting rod spherical joint seat 21 that ring back-up ring 19 is stuck in, limits the scope of activities of ball 18 in RS oscillating bearings；Connecting rod ball pivot axle
23 both ends are enclosed on connecting rod spherical joint seat 21, are fixed to clamp by two M16 hexagon socket head cap screws 20, ensure connecting rod ball pivot axle 23
Locking；The inside of connecting rod ball pivot axle 23 is provided with oil duct, and the exit of oil duct is provided with M10X1 through types forced filling oil cup 17, just
In carrying out grease lubrication to connecting rod ball hinged support assembly 10, abrasion is reduced.
Refering to Fig. 7, described shaft end is grounded oscillating cam exciting connection rod set assembly I3 and filled including cam exciter test axle
Part 27, link-type vibration type bearing support and brush capsid I 24, link-type vibration type bearing support and brush housing fill
Ligand i I25, connecting rod axle box cross-tie 28 and two Type B V belts 26, wherein link-type vibrate type bearing support and brush shell
Body assembly I 24 and link-type vibration type bearing support are identical with brush capsid II 25 structure, are respectively fitted over cam
The both sides of exciter test axle assembly 27, the test for ground axle 29 in cam exciter test axle assembly 27 is set to be vibrated with link-type
Type bearing support and brush capsid I 24, link-type vibration type bearing support and the experiment axle in brush capsid II25
38 inner rings interference fit is held, the ground connection contact disc assembly 31 at the both ends of cam exciter test axle assembly 27 is directly and earthing brush
Earthing brush contact in capsid 32, then under the drive of motor, the spin friction of cam exciter test axle assembly 27 electricity
Brush, the anti-wear performance of private wiper；Four one end of connecting rod axle box cross-tie 28 vibrate profile shaft by interference fit and link-type
Bearing twists with brush capsid I 24 and link-type vibration type bearing support with the connecting rod ball in brush capsid II 25
Assembly 34 is installed together, and the other end tests cam exciting portal frame assembly I 1 and twin shaft by interference fit and twin shaft
Connecting rod ball hinged support assembly 10 in experiment cam exciting portal frame assembly II 2 be installed together play limiting displacement with
The effect of torsion, equivalent to one " two power bars " structure；Two Type B V belt one end are connected to the assembling of cam exciter test axle
On experiment axial end belt pulley 35 in body 27, the other end is arranged on twin shaft experiment cam exciting portal frame assembly I 1 and double
On motor two-groove belt pulley 16 in shaft experiment cam exciting portal frame assembly II 2, it is contemplated that testing stand running axis
On end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end ground connection oscillating cam exciting connection rod set assembly II 4 is continuous
Lower bounce, tension that Type B V belt should not be installed prevent the excessive of Type B V belt, it is necessary to leave certain free gap
Abrasion.
Refering to Fig. 8 to Figure 10, described cam exciter test axle assembly 27 includes test for ground axle 29, experiment axial end
Lock belt pulley assembly 30, ground connection contact disc assembly 31 and short axle head and replace set assembly 39, wherein short axle head replaces
Change set assembly 39 two replace the both ends that spindle nose 61 is enclosed on test for ground axle 29, and spindle nose stretching screw 60 is replaced by one
It is fixed on test for ground axle 29, replaces for two and be drilled with bolt hole on spindle nose 61, for being grounded the installation of contact disc assembly 31；
Experiment axial end locking belt pulley assembly 30 is fixed on the middle part of test for ground axle 29 by long spline, tests axial end belt
The side of wheel 31 is drilled with M6 screwed hole, locks experiment axial end belt pulley 35 by jackscrew, reaches pinpoint purpose.
Described test for ground axle 29 uses motor-car genuine axletree, is transformed on its basis, in test for ground axle 29
The through hole in portion is that short axle head replaces the installation of set assembly 39 for convenience, while reduce the quality of device, test for ground axle
29 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
30。
Described short axle head, which replaces set assembly 39, to be included two replacement spindle noses 61 and replaces spindle nose stretching screw 60, its
The middle both ends replaced spindle nose 61 and be enclosed on test for ground axle 29, replace spindle nose stretching screw 60 by one and be fixed, and replace
The middle part of spindle nose stretching screw 60 is welded with four blocks of disc steel plates, withstands at the inner ring of test for ground axle 29, slows down ground connection examination
Test the vibration of axle 29；The various informative of spindle nose 61 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, with replacement spindle nose 61 corresponding to 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 31 installed on spindle nose 61,
Have no change.
Described link-type vibration type bearing support and brush capsid I 24 and link-type vibration type bearing support and electricity
Brush capsid 25 structures of II are identical, including earthing brush capsid 32, Three Degree Of Freedom vibration type bearing support
33rd, test bearing and connecting rod ball twist assembly 34, wherein 38 test bearings are arranged on inside Three Degree Of Freedom vibration type bearing support 33,
Three Degree Of Freedom vibrates the inner ring of type bearing support 33 with the outer ring of test bearing 38 using being interference fitted, and the inner ring of test bearing 38 tries with ground connection
Axle 29 is tested to connect using interference fit；Earthing brush capsid 32 is arranged on the outer of Three Degree Of Freedom vibration type bearing support 33
Side, it is fixed by eight M12 hexagon socket head cap screws, earthing brush capsid 32 is externally connected to high-tension bus-bar, passes through
(brush is with connecing for the contact disc that brush in earthing brush capsid 32 passes to electric current in ground connection contact disc assembly 31
Tactile disk closely forces together), and then test for ground axle 29 is passed to, until ground, completes loop；Single Three Degree Of Freedom oscillating mode
Bearing block 33 is provided with four connecting rod balls and twists assembly 34, is easy to connecting rod axle box cross-tie 28 and connecting rod axle box longitudinal tie 40
With axle shaft end ground connection oscillating cam exciting connection rod set assembly I 3, shaft end ground connection oscillating cam exciting connection rod set assembly II 4
Connection.
Described experiment axial end locking belt pulley assembly 30 includes experiment axial end belt pulley 35, belt pulley locking set
Round nut 36 and belt pulley lock sleeve 37, its inner ring of middle belt pulley lock sleeve 37 are cylindric, and diameter is slightly larger than test for ground axle
29 diameter, to carve type, another part strip, wherein strip are used to fix 37 outer ring cross-section of a belt pulley lock sleeve part
Axial end belt pulley 35 is tested, both are using interference fit, and carving type part car has external screw thread, and set circle spiral shell is locked by belt pulley
The locking of mother 36, it is ensured that experiment axial end locking belt pulley assembly 30 is overall to be steadily fixed on test for ground axle 29,
Make power transmission more stable.
The structure that described connecting rod ball twists assembly 34 is similar with connecting rod ball hinged support assembly 10, including M10X1 is led directly to
Ball 18, RS oscillating bearing inner ring back-up ring 19, M16 hexagon socket head cap screws 20 and connecting rod ball in formula forced filling oil cup 17, RS oscillating bearings
Hinge 23, wherein connecting rod ball twist assembly 34 directly by being interference fitted seven installed in Three Degree Of Freedom vibration type bearing support 33
Through hole, mounting means is identical with connecting rod ball hinged support assembly 10, can be lubricated with oiling.
Refering to Figure 11 to Figure 12, described Three Degree Of Freedom vibration type bearing support 33 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 33；Pass through three
From the point of view of the free degree vibration grade shaft side figure of type bearing support 33, there are four longitudinal holes to be used for installing connecting rods ball and twist assembly 34, respectively
Four connecting rod axle box cross-ties 28 are connected to, limitation shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end connect
Ground oscillating cam exciting connection rod set assembly II 4 lateral displacement；By Three Degree Of Freedom vibrate the side view of type bearing support 33 come
See there are two cross through hole to be used for installing connecting rods ball and twist assembly 34, the connecting rod ball of one of side twists assembly 34 and is used for
Connect twin shaft experiment longitudinal tie fulcrum bearing assembly 5, limitation shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and axle
End ground connection oscillating cam exciting connection rod set assembly II 4 length travel, the connecting rod ball of another lower end twist assembly 34 and are used for
The anti-phase crank assemblby assembly I 6 of box bearing housing exciting double-handle and the anti-phase crank assemblby assembly of box bearing housing exciting double-handle
II 7, motor power is transmitted, make shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end ground connection oscillating cam exciting
The vibrations of connection rod set assembly II 4 are got up.
Refering to Figure 13, the described profile of connecting rod axle box cross-tie 28 is similar to shaft-like, and middle part is a hollow steel tube, both sides
Two earrings are welded with, are twisted by earrings and connecting rod ball in the RS oscillating bearings of assembly 34 and connecting rod ball hinged support assembly 10
The interference of ball 18 is connected, and wherein connecting rod ball twists ball 18 in the RS oscillating bearings of assembly 34 and connecting rod ball hinged support assembly 10
The rotation of low-angle can be realized so that connecting rod axle box cross-tie 28 moves the phenomenon for more flexibly, preventing interim card.
Described connecting rod axle box longitudinal tie is identical with connecting rod axle box cross-tie structure, and connected mode is identical.
Refering to Figure 14, described twin shaft experiment longitudinal tie fulcrum bearing assembly 5 includes twin shaft experiment cam exciting longitudinal direction
The experiment of pull bar reaction supporting seat 41, connecting rod axle box longitudinal tie 40 and two connecting rod ball hinged support assemblies 10, wherein twin shaft is convex
The appearance of wheel exciting longitudinal tie reaction supporting seat 41 seems a box-structure, is welded entirely through 10mm steel plate, interior
Portion is welded with deep floor, the overall intensity of increase structure, the entirety of twin shaft experiment cam exciting longitudinal tie reaction supporting seat 41
It is easy to connecting rod ball hinged support assembly by 22 fixed two connecting rod ball hinged support assemblies 10 of M24 hexagon socket head cap screws in front
10 are welded with the connection of connecting rod axle box longitudinal tie 40, the lower end of twin shaft experiment cam exciting longitudinal tie reaction supporting seat 41
Adpting flange, it is fixed together by M24 hexagon socket head cap screws 22 and 50 tons of steel plate foundation grounds 8.
Refering to Figure 15, the described anti-phase crank assemblby assembly I 6 of box bearing housing exciting double-handle includes the asynchronous changes of 160kw
Frequency motor 42, both sides crank become amplitude bent axle assembly 43, become radius cam exciting connecting rod assembly 44, bent axle intermediate support axle
Box installed part 45 and bent axle inertial flywheel 46, wherein power of the 160kw Asynchronous Frequency-variables motor 42 as device exciting are held, output can
Control torque；It is asynchronous with 160kw by LZ5 types elastic plug tooth-type coupler 47 that both sides crank becomes 43 one end of amplitude bent axle assembly
Variable-frequency motor 42 is connected, and transmits torque, and the other end is connected with bent axle inertial flywheel 46, and both are interference fitted, and pass through bent axle inertia
Flywheel 46 absorbs motion energy, slows down the velocity variations of equipment, increases the service life of equipment；Both sides crank becomes amplitude bent axle dress
Two bearing support axle box bearings 49 on part 43 connect with the interference fit of crank inboard bearing case 54；It is bent that both sides crank becomes amplitude
Two on axle assembly 43 become the radius cam exciting connecting-rod bearing 50 and match somebody with somebody with becoming the interference of radius cam exciting connecting rod assembly 44
Close connection；The upper end for becoming radius cam exciting connecting rod assembly 44 is directly grounded oscillating cam exciting connection rod set assembly with shaft end
I 3 is connected with shaft end ground connection oscillating cam exciting connection rod set assembly II 4, passing power.
Refering to Figure 16 to Figure 17, it is tooth-like including LZ5 type spring column pins that described both sides crank becomes amplitude bent axle assembly 43
Shaft coupling 47, eccentric taper sleeve 48, bearing support axle box bearing 49, the change radius cam exciting connecting-rod bearing 50, both sides crank become amplitude
Exciting bent axle (band spline) 51 and M80 stripped nuts 52, wherein eccentric taper sleeve 48 are directly sleeved on both sides crank change amplitude and swashed
Shake on bent axle (band spline) 51, it is directly fixed by M80 stripped nuts 52, become according to eccentric taper sleeve 47 with both sides crank and shaken
The relative mounting positions of width exciting bent axle (with spline) 51 are different, change radius cam exciting connecting rod assembly 43 is produced difference
Vertical bounce, realize control shaft end ground connection oscillating cam exciting connection rod set assembly I 3 and shaft end ground connection oscillating cam exciting
The purpose that connection rod set assembly II 4 is moved.
Described bent axle center support bearing box installed part 45 is included in inner side crankshaft support axle box bearing end cap 53 and crank
Side bearing case 54, two of which inner side crankshaft support axle box bearing end cap 53 are arranged on crank inner shafts by M16 hexagon socket head cap screws
Hold on case 54, internal welding is connected to a round tube shape structure (inside carries flange), bearing support case on crank inboard bearing case 54
The outer ring of bearing 49 is interference fitted with round tube inner wall, and the flange on crank inboard bearing case 54 can limit bearing support axle box bearing
49 installation site.
Refering to Figure 18 to Figure 19, described change radius cam exciting connecting rod assembly 50 includes becoming radius cam exciting connecting rod
Bottom 55, become radius cam exciting connecting rod top 56, connecting rod top end cap 57, connecting rod top brass 58 and connecting rod lower brasses
59, pass through four M12 outer-hexagonal spiral shells wherein becoming radius cam exciting connecting rod bottom 55 and becoming radius cam exciting connecting rod top 56
Bolt is fixed, and accompanies connecting rod lower brasses 59 between the two, is become radius cam exciting connecting rod top 56 and is provided with connecting rod top brass
58, the outside 57 spacing fixation of connecting rod top end cap by both sides, connecting rod top brass 58 directly bears against link-type vibration profile shaft
Bearing twists with brush capsid I 24 and link-type vibration type bearing support with the connecting rod ball in brush capsid II 25
On assembly 34, connecting rod lower brasses 59 directly bears against the change radius cam exciting that both sides crank becomes in amplitude bent axle assembly 43
On the connecting-rod bearing 50.
Refering to Figure 20, the mechanism structure letter of earthing or grounding means testing stand is swung for the described double short axles of EMUs cam exciting
Figure.
The double short axles of EMUs cam exciting swing the operation principle of earthing or grounding means testing stand：
The double short axles of EMUs cam exciting swing earthing or grounding means testing stand by testing cam exciting both sides installed in twin shaft
7.5KW horizontal machines assembly on link supporting portal frame assembly drives the rotation of test for ground axle, test for ground axle both ends
Frictional disk and brush contact high-speed friction, meanwhile, earthing brush capsid is connected with high-tension electricity, directly defeated by brush
Test for ground axle is given, and is conducted to ground, forms loop, in the process, the wear extent and test for ground of private wiper
The anti-galvanic corrosion ability of axle.Then, the up and down motion of shaft end ground connection oscillating cam exciting connection rod set assembly passes through the asynchronous changes of 160kw
Frequency motor and eccentric taper sleeve and both sides crank become the relative mounting positions of amplitude exciting bent axle (with spline) to control, box axle
The effect of the anti-phase crank assemblby assembly of bearing exciting double-handle is exactly to drive shaft end to be grounded oscillating cam exciting connection rod set assembly
Shock motion, simulates the operating condition of earthing or grounding means in actual motor-car running and experiment axle, connecting rod axle box longitudinal tie and
The installation of connecting rod axle box cross-tie is the mass motion for limits device, prevents danger, and EMUs cam exciting is double
Short axle swings earthing or grounding means testing stand and contains two sets of shaft end ground connection oscillating cam exciting connection rod set assemblies, can test two respectively
Group earthing or grounding means and test axle, carry out contrast test.
Claims (9)
1. a kind of double short axles of EMUs cam exciting swing earthing or grounding means testing stand, cam exciting portal frame is mainly tested by twin shaft
Assembly, shaft end ground connection oscillating cam exciting connection rod set assembly, the anti-phase crank assemblby assembly of box bearing housing exciting double-handle
With twin shaft experiment longitudinal tie fulcrum bearing assembly composition, it is characterised in that：
The twin shaft experiment cam exciting portal frame assembly I (1), II (2) structure are identical, are arranged symmetrically in steel plate foundation ground
Upper both sides, the shaft end ground connection oscillating cam exciting connection rod set assembly I (3), II (4) structure are identical, are arranged symmetrically in twin shaft
Test between cam exciting portal frame assembly I (1), II (2), and it is fixed by pull bar and connecting rod ball hinged support assembly (10)
On twin shaft experiment cam exciting portal frame assembly I (1), II (2) and twin shaft experiment longitudinal tie fulcrum bearing assembly (5),
The anti-phase crank assemblby assembly I (6) of the box bearing housing exciting double-handle, II (7) structure are identical, by becoming radius cam
Exciting connecting rod assembly (44) is connected with shaft end ground connection oscillating cam exciting connection rod set assembly I (3), II (4) respectively, transmits dynamic
Power, by the eccentric shaft in the anti-phase crank assemblby assembly of box bearing housing exciting double-handle, shaft end is set to be grounded oscillating cam exciting
Connection rod set assembly produces upper and lower irregular vibrations, and then tests the use reliability of earthing or grounding means and test bearing.
2. a kind of double short axles of EMUs cam exciting according to claim 1 swing earthing or grounding means testing stand, its feature exists
In：
Described twin shaft experiment cam exciting portal frame assembly I (1), II (2) is respectively by cam exciting one side link supporting frame
Frame (9), 7.5KW horizontal machines assembly (11) and four connecting rod ball hinged support assembly (10) compositions, four connecting rod balls
Hinged-support assembly (10) and 7.5KW horizontal machines assembly (11) are arranged on cam exciting one side connecting rod branch by bolt respectively
On steel plate on support frame frame (9), the 7.5KW horizontal machines (15) are grounded oscillating cam exciting connecting rod by belt drive shaft end
Test for ground axle (29) rotation in ligand i (3), II (4) is assembled, and then simulates the operating condition of actual earthing or grounding means.
3. a kind of double short axles of EMUs cam exciting according to claim 1 or 2 swing earthing or grounding means testing stand, its feature
It is：
The shaft end ground connection oscillating cam exciting connection rod set assembly I (3), II (4) are respectively by cam exciter test axle assembly
(27), structure identical link-type vibration type bearing support and brush capsid I (24), II (25), four connecting rod axle boxes are horizontal
To pull bar (28) and two Type B V belt (26) compositions, the type vibratory type bearing support and brush capsid I
(24), II (25) is sleeved on the both sides of cam exciter test axle assembly (27) using interference fit；
Described four connecting rod axle boxes cross-tie (28) one end is using interference fit and link-type vibration type bearing support and brush shell
Connecting rod ball in body assembly twists assembly (34) and is installed together, and the other end is using interference fit and twin shaft experiment cam exciting
Connecting rod ball hinged support assembly (10) in portal frame assembly is installed together.
4. a kind of double short axles of EMUs cam exciting according to claim 1 or 2 swing earthing or grounding means testing stand, its feature
It is：
The shaft end ground connection oscillating cam exciting connection rod set assembly I (3), type vibratory type bearing support and brush in II (4)
Capsid I (24), II (25), cam exciting gantry is tested with twin shaft respectively laterally across connecting rod axle box cross-tie (28)
Rack-mounted ligand i (1), II (2) are connected；Filled longitudinally through connecting rod axle box longitudinal tie (40) and twin shaft experiment longitudinal tie fulcrum bearing
Part (5) is connected, the length travel amount of limitation shaft end ground connection oscillating cam exciting connection rod set assembly；It is vertical convex by becoming radius
Wheel exciting connecting rod assembly (44) crank assemblby assembly I (6) anti-phase with box bearing housing exciting double-handle, II (7) are connected, and transmit
Power；Respectively there are two sets of test earthing or grounding means and survey in the shaft end ground connection oscillating cam exciting connection rod set assembly I (3), II (4)
Bearing is tried, result of the test is detected by contrast test.
5. a kind of double short axles of EMUs cam exciting according to claim 3 swing earthing or grounding means testing stand, its feature exists
In：
The cam exciter test axle assembly (27) is by test for ground axle (29), experiment axial end locking belt pulley assembly
(30), short axle head replaces set assembly (39) and ground connection contact disc assembly (31) composition, and the short axle head replaces suit
Two of part (39) replace the both ends that spindle nose (61) is sleeved on test for ground axle (29), and by test for ground axle (29)
It is fixed to replace spindle nose stretching screw (60), dress is by ground connection contact disc assembly (31) on described two replacement spindle noses (61)；It is described
Experiment axial end locking belt pulley assembly (30) is fixed on the middle part of test for ground axle (29), the experiment axle by long spline
Experiment axial end belt pulley (35) in face-lock belt pulley assembly (30) is locked by jackscrew, reaches pinpoint mesh
's；
Described test for ground axle (29) is the internal two-part multi-diameter shaft for being provided with through hole, replacing in the test for ground axle (29)
Change in the middle part of spindle nose stretching screw (60) and be welded with four blocks of disc steel plates, withstand at the inner ring of test for ground axle (29), slow down
The vibration of test for ground axle (29)；The various informative of spindle nose (61) is replaced, according to the difference for the earthing or grounding means model installed more
Spindle nose (61) is replaced corresponding to commutation, for making up the mounting distance deficiency caused by earthing or grounding means difference.
6. a kind of double short axles of EMUs cam exciting according to claim 1 or 2 swing earthing or grounding means testing stand, its feature
It is：
Anti-phase crank assemblby assembly I, the II of box bearing housing exciting double-handle (6,7) by 160kw Asynchronous Frequency-variables motor (42),
Both sides crank becomes amplitude bent axle assembly (43), becomes radius cam exciting connecting rod assembly (44), bent axle center support bearing case
Assembly (45) and bent axle inertial flywheel (46) composition, described both sides crank become amplitude bent axle assembly (43) by both sides crank
Become amplitude exciting bent axle (51) and mounted in LZ5 types elastic plug tooth-type coupler (47) thereon, eccentric taper sleeve (48), support shaft
Axle box bearing (49), the change radius cam exciting connecting-rod bearing (50) and M80 stripped nuts (52) composition are held,
Power of the 160kw Asynchronous Frequency-variables motor (42) as device exciting, controllable torque is exported, the both sides crank, which becomes, to shake
Width bent axle assembly (43) one end passes through LZ5 types elastic plug tooth-type coupler (47) and 160kw Asynchronous Frequency-variables motor (42) phase
Even, the other end is connected with bent axle inertial flywheel (46) interference fit, and the both sides crank becomes on amplitude bent axle assembly (43)
Two bearing support axle box bearings (49) connect with crank inboard bearing case (54) interference fit；Both sides crank becomes the assembling of amplitude bent axle
Two on body (43) become the radius cam exciting connecting-rod bearing (50) and match somebody with somebody with becoming radius cam exciting connecting rod assembly (44) interference
Close connection；Directly assembled with shaft end ground connection oscillating cam exciting connection rod set the upper end for becoming radius cam exciting connecting rod assembly (44)
Body phase connects, passing power.
7. a kind of double short axles of EMUs cam exciting according to claim 6 swing earthing or grounding means testing stand, its feature exists
In：
The eccentric taper sleeve (48) is directly sleeved on both sides crank and become on amplitude exciting bent axle (51), passes through M80 stripped nuts
(52) it is directly fixed, it is different from the relative mounting positions of both sides crank change amplitude exciting bent axle (51) according to eccentric taper sleeve (48),
Change radius cam exciting connecting rod assembly (44) is produced different vertical bounces, realize that control shaft end is grounded oscillating cam exciting
The purpose of connection rod set assembly motion.
8. a kind of double short axles of EMUs cam exciting according to claim 10 swing earthing or grounding means testing stand, its feature exists
In：
Described bent axle center support bearing box installed part (45) is by inner side crankshaft support axle box bearing end cap (53) and crank inner side
Bearing housing (54) forms, and described two inner side crankshaft support axle box bearing end caps (53) are arranged on crank inboard bearing case by bolt
(54) on, internal welding is connected to the round tube shape structure that an inside carries flange, bearing support case on crank inboard bearing case (54)
The outer ring of bearing (49) is interference fitted with round tube inner wall；
Described change radius cam exciting connecting rod assembly (44) is by change radius cam exciting connecting rod bottom (55), change radius cam
Exciting connecting rod top (56), connecting rod top end cap (57), connecting rod top brass (58) and connecting rod lower brasses (59) composition.
9. a kind of double short axles of EMUs cam exciting according to claim 8 swing earthing or grounding means testing stand, its feature exists
In：
Change radius cam exciting connecting rod bottom (55) and change radius cam exciting connecting rod top (56) are bolted, and two
Connecting rod lower brasses (59) is accompanied between person, becomes radius cam exciting connecting rod top (56) and connecting rod top brass (58) is installed,
Outside connecting rod top end cap (57) spacing fixation by both sides, connecting rod top brass (58) directly bear against link-type vibration profile shaft
Connecting rod ball in bearing is twisted on assembly (34), and connecting rod lower brasses (59) directly bears against both sides crank and becomes amplitude bent axle assembly
(43) on the change radius cam exciting connecting-rod bearing (50) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869556.8A CN107588949A (en) | 2017-09-23 | 2017-09-23 | The double short axles of EMUs cam exciting swing earthing or grounding means testing stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869556.8A CN107588949A (en) | 2017-09-23 | 2017-09-23 | The double short axles of EMUs cam exciting swing earthing or grounding means testing stand |
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| CN107588949A true CN107588949A (en) | 2018-01-16 |
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