CN104865069A - Four-degree of freedom power loop-type transmission system reliability test bench - Google Patents

Abstract

The invention discloses a four-degree of freedom power loop-type transmission system reliability test bench, so as to solve the problem that the prior vibration simulation device can not fully simulate working conditions of a gearbox during a driving process of a train. The reliability test bench comprises a torque test device (1), a gearbox flexible coupling (2), a cross joint-type universal coupling (3), a torque detection test device (4) and a four-degree of freedom vibration simulation test device (5), wherein the four-degree of freedom vibration simulation test device (5) comprises a transmission system test vibration shaft assembly (11) and a four-degree of freedom vibration test bench (10); the four-degree of freedom vibration test bench (10) comprises a T-shaped cross beam (23); the transmission system test vibration shaft assembly (11) is fixed on the four-degree of freedom vibration test bench (10) by adopting bolts; and rotating axis of a tested gearbox shaft (20) in the transmission system test vibration shaft assembly (11) is parallel to the long edge of the T-shaped cross beam upper surface (30) of the T-shaped cross beam (23).

Description

Four-degree-of-freedom power circuit formula kinematic train reliability test bench

Technical field

The present invention relates to a kind of test unit for railway high speed motor train unit, more particularly, the present invention relates to a kind of four-degree-of-freedom power circuit formula kinematic train reliability test bench.

Background technology

On April 18th, 2007, China's successful implementation the 6th china railway speed raising is changed the line map, Harmony CRH series motor train unit appears in Chinese Railway first, existing line achieves the high speed operation of 250Km/h, thus has opened the prelude of China railways high speed development.The high ferro of China's F-Zero 350 kilometers has run more than 200,000,000 kilometer, within 3 years, does not go out any security incident.Reach 480km/h in the motor train unit max. speed run at present, but along with the raising of the speed of a motor vehicle, the operating condition of each parts of high-speed train bogie traction drive becomes and very worsens, and the safe and reliable sex chromosome mosaicism of the critical component that is in operation becomes increasingly conspicuous.

The reliability of traction drive directly determines security that rolling stock runs, reliability and economy, checks its fatigue strength and whether meets locomotive operation requirement, be of great importance to the reliability improving rolling stock.But owing to causing tired real work load very complicated, structural design is ever-changing, the engineering characteristic of real material is come in and gone out very large, and the stress that external load effect produces is very sensitive to structure and material.Therefore any one analytical approach and forecast model have limitation, and it is very accurate that simulation Analysis of Fatigue can't be accomplished up to now.But it is high to carry out actual track experimentation cost, dangerous simultaneously.

Therefore, develop simple and reasonable, traction drive reliability test bench when the simulation bullet train frame suspension type traction drive generally adopted for bullet train travels under loading condition, the each critical component design of traction drive, production defect is exposed fast with this, improving product reliability, has been an extremely urgent task.

Summary of the invention

Technical matters to be solved by this invention overcomes the problem that existing vibration simulator fully can not simulate the gear case operating mode in train driving process, provides a kind of four-degree-of-freedom power circuit formula kinematic train reliability test bench for EMU.

For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: described four-degree-of-freedom power circuit formula kinematic train reliability test bench comprises torsion-testing apparatus, gear case flexible coupling, universal coupling with spider, torque detection testing device and four-degree-of-freedom vibration test device.

Described four-degree-of-freedom vibration test device comprises power train test vibrating shaft assembly and four-degree-of-freedom vibration table.

Power train test vibrating shaft assembly adopts and is bolted on four-degree-of-freedom vibration table, and the axis of rotation of tested gearbox shaft in power train test vibrating shaft assembly is parallel with the long limit of the T-shaped beam surface upper of the T-shaped crossbeam in four-degree-of-freedom vibration table.

Power train test vibrating shaft assembly described in technical scheme comprises the identical tested gearbox shaft bearing stop washer of tested gearbox shaft, tested gearbox shaft bearing that two structures are identical, No. 2 taper connection ring flanges, two nested structures and tested gearbox shaft bearing round nut; The two ends of tested gearbox shaft are arranged in the identical tested gearbox shaft bearing of structure respectively as being rotationally connected, the shaft shoulder at tested gearbox shaft two ends is connected with the end contact of the tested gearbox shaft bearing labyrinth type sealing ring in tested gearbox shaft bearing respectively, the tested gearbox shaft bearing stop washer that two nested structures are identical and tested gearbox shaft bearing round nut are sleeved on one end that tested gearbox shaft stretches out outside tested gearbox shaft bearing, and No. 2 taper connection ring flanges are connected to the left end of tested gearbox shaft by double key system.

Four-degree-of-freedom vibration table described in technical scheme also comprises No. 1 vertical transverse movement turning device, No. 1 vertical actuator, No. 1 longitudinal tie device, No. 2 longitudinal tie devices, No. 2 vertical actuator and No. 2 vertical transverse movement turning devices; No. 1 longitudinal tie seat on the right-hand member of No. 1 vertical transverse movement turning device and T-shaped crossbeam is with bolts, No. 4 longitudinal tie seats on the upper end of No. 2 vertical transverse movement turning devices and T-shaped crossbeam are with bolts, No. 2 longitudinal tie seats on No. 1 longitudinal tie device and No. 2 longitudinal tie devices and T-shaped crossbeam and No. 3 longitudinal tie seats with bolts, No. 2 in No. 1 longitudinal tie device, No. 2 longitudinal tie devices and No. 2 vertical transverse movement turning devices axiss of rotation in length and breadth to exciting pull bar are parallel to each other; No. 1 vertical Connection Block on the upper end of No. 1 vertical actuator and No. 2 vertical actuator and T-shaped crossbeam is connected with No. 2 vertical Connection Block bolts, and No. 1 vertical actuator is fixedly connected with ground is vertical with the lower end of No. 2 vertical actuator.

Described in technical scheme No. 1 vertical transverse movement turning device is identical with the structure of No. 2 vertical transverse movement turning devices, No. 1 vertical transverse movement turning device comprise No. 1 in length and breadth to exciting pull rod device, No. 1 in length and breadth to turnover assembly and No. 1 pair of ball pivot actuator devices; Described No. 1 comprises No. 1 in length and breadth to exciting pull bar and No. 1 longitudinal hitch ball hinged-support device to exciting pull rod device in length and breadth; No. 1 longitudinal hitch ball hinged-support device is made up of No. 1 ball pivot and No. 1 longitudinal connecting support seat; No. 1 adopts No. 1 ball pivot and No. 1 longitudinal connecting support seat to be rotationally connected in length and breadth to one end of exciting pull bar, No. 1 adopts second No. 1 ball pivot to be connected to the one end of assembly of transferring in length and breadth with No. 1 to the other end of exciting pull bar in length and breadth, and the upper end of No. 1 two ball pivot actuator devices adopts No. 1 bearing pin to be connected to the other end of assembly of transferring in length and breadth with No. 1.

Described in technical scheme No. 1 in length and breadth to turnover assembly comprise No. 1 in length and breadth to turnover arm supporting base, No. 1 in length and breadth to turnover arm and No. 1 arm back shaft of transferring; No. 1 in length and breadth to turnover arm adopt No. 1 arm back shaft of transferring be arranged on No. 1 in length and breadth on turnover arm supporting base for being rotationally connected; No. 1 is welded to turnover arm supporting seat by No. 1 collateral fagging that No. 1 supporting seat base plate is identical with two block structures in length and breadth, No. 1 supporting seat base plate is a rectangular flat structural member, row's bolt hole is respectively provided with in two broadside sides of rectangular flat structural member, two pieces of No. 1 collateral faggings are slab construction parts that structure is identical, the upper end of two pieces of No. 1 collateral faggings is provided with the identical round tube hole for installing No. 1 turnover arm back shaft of structure, the axis of rotation conllinear of two pieces No. 1 collateral fagging upper end round tube hole.

Described in technical scheme is No. 1 in length and breadth the structural member of a V-shape to turnover arm, No. 1 in length and breadth to turnover arm by No. 1 in length and breadth to turnover arm front end panel, No. 1 in length and breadth to turnover arm rear bearing sheet, No. 1 in length and breadth to turnover arm right support floor, No. 1 form to turnover arm left support floor and cylinder-shaped sleeve in length and breadth, No. 1 identical with No. 1 structure in length and breadth to turnover arm rear bearing sheet to turnover arm front end panel in length and breadth, No. 1 is provided with through hole to two ends of arm rear bearing sheet of transferring and middle in length and breadth to turnover arm front end panel and No. 1 in length and breadth, two through-hole structures of two end settings are identical, and the axis of rotation of three through holes is parallel to each other, place to arm rear bearing sheet parallel side-by-side of transferring in length and breadth to turnover arm front end panel and No. 1 in length and breadth for No. 1, No. 1 in length and breadth to turnover arm left support floor, cylinder-shaped sleeve and No. 1 are placed in No. 1 in length and breadth to transferring arm front end panel and No. 1 in length and breadth to transfer between arm rear bearing sheet and to adopt welding manner to be connected and fixed integral successively to arm right support floor of transferring in length and breadth, cylinder-shaped sleeve and No. 1 in length and breadth to turnover arm front end panel and No. 1 in length and breadth to the axis of rotation conllinear of the large round tube hole in arm rear bearing sheet middle of transferring, No. 1 in length and breadth to turnover arm front end panel and No. 1 in length and breadth to the axis of rotation conllinear of the small through hole at arm rear bearing sheet two ends of transferring.

T-shaped crossbeam described in technical scheme is a case body structural member, T-shaped beam surface upper is provided with T-slot, the left side of T-shaped crossbeam is welded and fixed No. 1 longitudinal tie seat, the two ends, left and right in T-shaped crossbeam front are welded with No. 3 longitudinal tie seats and No. 4 longitudinal tie seats, the front lower weld of T-shaped crossbeam is fixed with No. 3 longitudinal tie seats, the bottom surface at the two ends, left and right in T-shaped crossbeam front is welded and fixed No. 1 vertical Connection Block and No. 2 vertical Connection Blocks; No. 2 longitudinal tie seats on T-shaped crossbeam are adjacent with No. 1 longitudinal tie seat left and right to be connected and orthogonal, No. 2 longitudinal tie seats and No. 1 vertical actuator Connection Block be neighbouring to be connected and vertical, and No. 4 longitudinal tie seats on T-shaped crossbeam and No. 2 vertical Connection Blocks be neighbouring to be connected and orthogonal.

Torsion-testing apparatus described in technical scheme and four-degree-of-freedom vibration test device are arranged on ground side by side, the long edge position of the T-shaped beam surface upper of the T-shaped crossbeam in the long limit of the rectangle carrying platform in torsion-testing apparatus and four-degree-of-freedom vibration test device is on same plane, the tested gear case of the power train test vibrating shaft assembly in four-degree-of-freedom vibration test device with accompany try gearbox assembly test unit accompany that to try gear case be adopt gear case flexible coupling to be connected, the upper workplace of the T-shaped beam surface upper of four-degree-of-freedom vibration test device and the rectangle carrying platform of torsion-testing apparatus be in same level, between parallel distance be 20-40cm, four-degree-of-freedom vibration test device and the torque detection testing device on the left of it adopt the universal coupling with spider of horizontal positioned to be connected, and the axis of rotation three line conllinear of transition axis in the axis of rotation of the tested gearbox shaft of power train test vibrating shaft assembly in its axis of rotation and four-degree-of-freedom vibration test device and torque detection testing device, the upper surface of the rectangle carrying platform in torsion-testing apparatus and the rectangular support platform in torque detection testing device is provided with some the T-slot be parallel to each other along long limit parallel direction.

Compared with prior art the invention has the beneficial effects as follows:

1. four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention can realize the vibration of four degree of freedom, accurately simulates train situation vibrated in road runs.

2. the power drive loading system of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention can simulate the situation of the high pulling torque that train traction system is transmitted in train operation, ensures the rationality that gear case detects and correctness.

3. four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention can realize the torque measurement in the speed of a motor vehicle very on a large scale.Measure speed of a motor vehicle operating mode and reach 420Km/h in the dynamic case, under static speed of a motor vehicle operating mode, can 500Km/h be reached.The gear case fatigability that can meet high-speed drive system that is that developed and that developing completely detects, and has good economic benefit and social benefit.

4. four-degree-of-freedom power circuit formula kinematic train reliability test bench project organization of the present invention is reasonable, and adopt the fixing mode of T-shaped bolt to be installed on testing table by each parts, if there are parts to break down, technician is also for convenience detach.

5. four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention is provided with self-protection device, automatically can cut off connection when moment of torsion is excessive, protects staff and machinery and equipment well.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is further illustrated:

Fig. 1 is the axonometric projection graph of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 2 is the torsion-testing apparatus of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention and the axonometric projection graph of four-degree-of-freedom vibration test device;

Fig. 3 is the axonometric projection graph of accompanying examination gear case and tested gear case vibrating shaft assembly test unit of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 4 is the axonometric projection graph of the four-degree-of-freedom vibration table of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 5 is the axonometric projection graph of the T-shaped crossbeam assembly of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 6 is No. 1 vertical transverse movement turning device axonometric projection graph of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 7 is that longitudinal hitch ball hinged-support assembly of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention is bowed axonometric projection graph;

Fig. 8 is longitudinal hitch ball hinge axonometric projection graph of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

Fig. 9 be four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention in length and breadth to turnover assembly structure composition axonometric projection graph;

Figure 10 be four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention in length and breadth to turnover assembly structure composition front view;

Figure 11 be four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention in length and breadth to turnover arm configuration composition axonometric projection graph;

Figure 12 be four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention in length and breadth to the main cut-open view looked of turnover arm configuration composition;

Figure 13 be four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention in length and breadth to the axonometric projection graph of turnover arm clamping support composition;

Figure 14 is the axonometric projection graph of the motor torque instrument of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention.

Figure 15 is the axonometric projection graph of accompanying the bent plate support of examination gear case fixed support device and tested gear case support frame device of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention.

Figure 16 is the axonometric projection graph of the tested gear case support frame device of four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention;

In figure: 1. torsion-testing apparatus, 2. gear case flexible coupling, 3. universal coupling with spider, 4. torque detection testing device, 5. four-degree-of-freedom vibration test device, 6. rectangle carrying platform, 7. tested gear case support frame device, 8. accompany examination gearbox assembly test unit, 9. accompany examination gear case fixed support device, 10. four-degree-of-freedom vibration table, 11. power train test vibrating shaft assemblies, 12. accompany examination gear case vibrating shaft assembly, 13. accompany examination gear case, 14. accompany examination gearbox shaft, 15. accompany examination gearbox shaft bearing, 16. accompany examination gearbox shaft bearing stop washer, 17. accompany examination gearbox shaft bearing round nut, 18. accompany examination gearbox shaft bearing labyrinth seal circle, 19. tested gearbox shaft bearings, 20. tested gearbox shafts, 21. tested gear casees, No. 22.1 taper connection ring flanges, 23.T type crossbeam, No. 24.1 vertical transverse movement turning devices, No. 25.1 vertical actuator, No. 26.1 longitudinal tie devices, No. 27.2 longitudinal tie devices, No. 28.2 vertical actuator, No. 29.2 vertical transverse movement turning devices, 30.T shape beam surface upper, No. 31.1 longitudinal tie seats, No. 32.2 longitudinal tie seats, No. 33.1 vertical Connection Blocks, No. 34.3 longitudinal tie seats, No. 35.2 vertical Connection Blocks, No. 36.4 longitudinal tie seats, No. 37.1 in length and breadth to exciting pull rod device, No. 38.1 in length and breadth to turnover assembly, No. 39.1 two ball pivot actuator devices, No. 40.1 longitudinal hitch ball hinged-support devices, No. 41.1 in length and breadth to exciting pull bar, No. 42.1 longitudinal connecting support seats, 43.1 number ball pivot, No. 44.1 oscillating bearing devices, No. 45.1 oscillating bearing inner ring back-up rings, No. 46.1 longitudinal tie coupling spindles, No. 47.1 in length and breadth to turnover arm, No. 48.1 in length and breadth to turnover arm back shaft, No. 49.1 in length and breadth to turnover arm supporting seat, No. 50.1 in length and breadth to turnover arm front end panel, No. 51.1 in length and breadth to turnover arm rear bearing sheet, No. 52.1 in length and breadth to turnover arm right support floor, No. 53.1 in length and breadth to turnover arm left support floor, 54. cylinder-shaped sleeves, No. 55.1 collateral faggings, No. 56.1 supporting seat base plates, 57.1 number bearing pin, 58. motor torque instrument, 59. transition axises, 60. frequency modulation motors (load motor), 61. flange form torque gauges, No. 62.2 taper connection ring flanges, 63. tested gearbox shaft bearing stop washers, 64. tested gearbox shaft bearing round nuts, 65. tested gearbox shaft bearing labyrinth seal circles, 66. horizontal edges, 67. longitudinal edges, 68. tested gear case fixed support bases, 69.C type jig suspended support device, 70. tested gear case C type swing pipe Clamp for welding, 71. round nuts, No. 72.1 gear case C type jig suspended support axle clamp plates, No. 73.2 gear case C type jig suspended support axle clamp plates, 74. gear case C type jig back shafts, 75. spacers, 76.1 number flap, 77.2 number flap, 78. hinge pin, 79.1 number rubber cushion blocks, 80.2 number rubber cushion blocks, No. 81.2 in length and breadth to exciting pull bar, 82.1 number connecting support seat, 83.1 number longitudinal tie, 84.2 number connecting support seat, 85.2 number longitudinal tie, No. 86.2 longitudinal connecting support seats, No. 87.1 vertical connecting support seats, No. 88.2 vertical connecting support seats, 89.2 number ball pivot.

Embodiment

Below in conjunction with accompanying drawing, the present invention is explained in detail:

Four-degree-of-freedom power circuit formula kinematic train reliability test bench of the present invention can be simulated the four-degree-of-freedom of train in actual moving process and be vibrated and four-degree-of-freedom coupled vibrations operating mode, simultaneously reliability test bench also has power drive line and to unify load system, form power circuit formula kinematic train, train traction motor can be simulated and export very large moment of torsion, also can simulate the stressing conditions of train in actual motion completely simultaneously, thus the analysis of fatigue of gear case can be carried out, the reliability of further research gear case, there is good economic benefit and social benefit.

Consult Fig. 1 to Fig. 2, described four-degree-of-freedom power circuit formula kinematic train reliability test bench comprises torsion-testing apparatus 1, gear case flexible coupling 2, universal coupling with spider 3, torque detection testing device 4 and four-degree-of-freedom vibration test device 5.

Torsion-testing apparatus 1 and four-degree-of-freedom vibration test device 5 are arranged on ground side by side, and the long limit of the rectangle carrying platform 6 in torsion-testing apparatus 1 is parallel with the long limit of the T-shaped beam surface upper 30 of the T-shaped crossbeam 23 in four-degree-of-freedom vibration test device 5.The tested gear case 21 of the power train test vibrating shaft assembly 11 in four-degree-of-freedom vibration test device 5 is tried accompanying of gearbox assembly test unit 8 and tries gear case 13 and be connected by gear case flexible coupling 2 with accompanying.The T-shaped beam surface upper 30 of four-degree-of-freedom vibration test device 5 is in same level with the upper workplace of the rectangle carrying platform 6 of torsion-testing apparatus 1, between parallel distance be 20-40cm, distance range can not be excessive, also can not be too small, the requirement of accompanying examination gear case 13 and tested gear case 21 can be installed together by shaft coupling must be met.Four-degree-of-freedom vibration test device 5 is connected by universal coupling with spider 3 with the torque detection testing device 4 of its left end, between distance determined by universal coupling with spider 3, ensure that the axis of rotation of universal coupling with spider 3 and the power train of four-degree-of-freedom vibration test device 5 test the axis of rotation three line conllinear of the transition axis 59 in the tested gearbox shaft 20 of vibrating shaft assembly 11 and torque detection testing device 4.The use of universal coupling with spider 3 achieves the Flexible Transmission of power.The upper surface of the rectangle carrying platform 6 in torsion-testing apparatus 1 and the rectangular support platform in torque detection testing device 4 is provided with some the T-slot be parallel to each other along long limit parallel direction, move in the T-slot that the T-shaped bolt of stationary installation can be arranged on two platform surfaces, therefore can carry out location is installed to testing equipment easily when carrying out correlation test and need Adjustment Tests device and the position of equipment on rectangle carrying platform 6 and rectangular support platform according to test.

Described torsion-testing apparatus 1 by rectangle carrying platform 6, accompany examination gearbox assembly test unit 8 to form with motor torque instrument 58.

Motor torque instrument 58 is mainly system and provides driving.Accompany examination gearbox assembly test unit 8 and motor torque instrument (drive motor) 58 to be respectively fixed on rectangle carrying platform 6 by T-shaped bolt along the long side direction of rectangle carrying platform 6, make it into as a whole.Namely accompany the axis of examination testing gear case vibrating shaft assembly 12 parallel with the long side direction of rectangle carrying platform 6, and accompany examination gearbox assembly test unit 8 to be arranged on the left side of motor torque instrument (drive motor) 58.Meanwhile, the moment of torsion exported by motor torque instrument (drive motor) 58 is delivered to by flange form torque gauge 61 and No. 1 taper connection ring flange 22 accompanies accompanying in examination gearbox assembly test unit 8 to try testing gear case vibrating shaft assembly 12.Be delivered to accompanying the moment of torsion of examination gear case 13 on tested gear case 21 by gear case flexible coupling 2.Utilize the principle of gears meshing annexation, accompanying of the examination gear wheel of gear case 13 inside and gear case shaft coupling 2 left end is accompanied to try gear case 13 pinion wheel and be connected with a joggle, transferred torque to the pinion wheel of tested gear case 21 by gear case flexible coupling 2 simultaneously, thus again driven the gear wheel of tested gear case 21 by pinion wheel by gears meshing annexation, and then on the drive line vibrations testing table assembly 11 being delivered in four-degree-of-freedom vibration test device 5, and then pass to the transition axis 59 in torque detection testing device 4.While moment of torsion is passed to another motor torque instrument 58 by transition axis 59; also assume responsibility for the labile factor such as moment of flexure and vibration that universal coupling with spider 3 brings, thus ensure that data stabilization, measuring accuracy are high and the torque sensor well protected in torque detection testing device.Frequency modulation motor 60 (load motor) in torque detection testing device 4 is as system load, and the data according to torque sensor feedback provide the moment of resistance to tested gear case 21.

Consult Fig. 2, described rectangle carrying platform 6 is a rectangular box class formation part, the latticed gusset be parallel to each other is provided with between the upper workplace of rectangle carrying platform 6 and the bottom end plate of rectangle carrying platform 6, size is can put down motor torque instrument 58 and to accompany examination gearbox assembly test unit 8 to be advisable, rectangle carrying platform 6 both can adopt the method for casting to make, also the mode of Plate Welding can be adopted to make, the upper workplace of rectangle carrying platform 6 and the bottom end plate of rectangle carrying platform 6 are parallel to each other, the upper workplace of rectangle carrying platform 6 is provided with T-slot, platform bottom end plate is fixed on the ground of testing table by foot bolt, also can neatly other various instruments and device be fixed on rectangle carrying platform 6 by T-slot and T-shaped bolt, rectangle carrying platform 6 is made to become an omnipotent immobilization carrier.

Consult Fig. 2 to Fig. 3, described accompanies examination gearbox assembly test unit 8 by accompanying examination testing gear case vibrating shaft assembly 12, accompanying examination gear case fixed support device 9, tested gear case support frame device 7, gear case flexible coupling 2 to form.Accompany examination testing gear case vibrating shaft assembly 12, accompany examination gear case fixed support device 9 with tested gear case support frame device 7 all by the T-shaped left end being bolted to rectangle carrying platform 6.And the long side direction of accompanying the axial direction of examination gear case vibrating shaft assembly 12 to be parallel to rectangle carrying platform 6 is placed.Accompany examination gear case fixed support device 9 to be placed on and accompany accompanying examination gearbox shaft bearing 15 and accompanying the centre of trying gear case 13 of examination gear case vibrating shaft assembly 12, position is as the criterion fixedly can accompany examination gear case 13, and is fixed on rectangle carrying platform 6 by T-shaped bolt.Tested gear case support frame device 7 is installed and is placed on tested gear case 21 and accompanies the opposite side trying gear case vibrating shaft assembly 12 to accompany the centre of trying gearbox shaft bearing, position is as the criterion can fix tested gear case 21, and is fixed on rectangle carrying platform 6 by T-shaped bolt.

Described examination testing gear case vibrating shaft assembly 12 of accompanying is accompanied examination gearbox shaft bearing 15, No. 1 taper connection ring flange 22 by what accompany examination gearbox shaft 14, two structures identical, accompany identical the accompanying of examination gear case 13, two structures to try gearbox shaft bearing round nut 17 and accompanied examination gearbox shaft bearing stop washer 16.

Accompany examination gear case 13 to be sleeved on and accompany on examination gearbox shaft 14 and become interference fit.Accompany examination gearbox shaft 14 to be the multidiameters being provided with a shaft shoulder in two ends respectively, material is 1045 steel, and cold-drawn processes.Accompany examination gearbox shaft 14 two ends to be arranged on identical the accompanying in examination gearbox shaft bearing 15 of structure to be respectively rotationally connected.Every platform accompanies the inner side of examination gearbox shaft bearing 15 by accompanying the shaft shoulder of examination gearbox shaft 14 and accompanying the end contact trying gearbox shaft bearing labyrinth seal circle 18 to be connected.The other end of examination gearbox shaft bearing labyrinth seal circle 18 is accompanied to be connected with the right side of the CRH3 axle box bearing inner ring of accompanying in examination gearbox shaft bearing 15 or left side contact.Thus achieve the axial location of accompanying examination gearbox shaft 14 or accompanying examination gearbox shaft bearing 15.Examination gearbox shaft 14 is accompanied to accompany the one end outside examination gearbox shaft bearing 15 by accompanying examination gearbox shaft bearing round nut 17 and accompanying examination gearbox shaft bearing stop washer 16 to fix.Accompany in examination gearbox shaft bearing 15 and comprise CRH3 axle box bearing, ensure that enough axial carrying capacities.

Consult Fig. 2, Fig. 3, Figure 15, accompany examination gear case fixed support device 9 by the T-shaped left end being bolted to rectangle carrying platform 6, be positioned at and accompany examination gearbox shaft bearing 15 and accompany the centre position of trying gear case 13, accompany the symmetrical plane of examination gear case fixed support device 9 vertical with the length direction of rectangle carrying platform 6, accompany examination gear case fixed support device 9 to support the pinion end of accompanying examination gear case 13, make to accompany examination gear case 13 steadily to fix.The bent plate support of accompanying examination gear case fixed support device 9 is perpendicular type component, is made up of horizontal bent plate 66 and longitudinal column 67.Horizontal bent plate 66 realizes accompanying examination gear case bent plate support to be fixed on rectangle carrying platform 6 by bolt, longitudinal column 67 be each side processed with two vertical T-shaped grooves from top to bottom, can installing easily or lay down feet, also feet can being regulated to accompany the upper-lower position on examination gear case bent plate support longitudinal edge according to accompanying the height of examination gear case.

Consult Figure 16, described tested gear case support frame device 7 is made up of tested gear case fixed support base 68, C type jig suspended support device 69, C type rubber cushion blocks 71 that tested gear case C type swing pipe Clamp for welding 70, two pieces is identical, No. 1 block rubber 79 and No. 2 block rubbers 80.

Described tested gear case stationary installation base for supporting 68 is square components, consistent with accompanying the bent plate supporting structure tried in gear case fixed support device 9, its symmetrical plane is perpendicular to rectangle carrying platform 6, also be made up of horizontal bent plate 66 and longitudinal column 67, by bolt, tested gear case stationary installation base for supporting 68 is fixed on rectangle carrying platform 6, longitudinal column 67 be each side processed with two vertical T-shaped grooves from top to bottom, can install easily and lay down C type jig suspended support device 69.

Described C type jig suspended support device 69, be welding assembly formula parts, be made up of with hinge pin 78 No. 1 gear case C type jig suspended support axle clamp plate 72, No. 2 gear case C type jig suspended support axle clamp plates 73, gear case C type jig back shaft 74, spacer 75, No. 1 flap 76, No. 2 flaps 77.

Gear case C type jig back shaft 74, diameter 70mm, there is screw thread at two ends respectively, and often end installation two internal diameters are standard component nuts 71 of 64.No. 1 gear case C type jig suspended support axle clamp plate 72, No. 2 gear case C type jig suspended support clamping plate 73, No. 1 flap 76, spacer 75, No. 2 flaps 77 are set on gear case C type jig back shaft 74 all from right to left successively, except No. 2 gear case C type jig suspended support axle clamp plates 73 and gear case C type jig back shaft 74 are welded to connect, other are and are rotationally connected.No. 1 gear case C type jig suspended support axle clamp plate 72 upper end has a diameter to be the manhole of 70mm, for installing gear case C type jig back shaft 74, respectively there are four through holes formed a line both sides, bottom, C type jig suspended support device 69 can be fixed on tested gear case fixed support base 68 at through hole erection bolt, thus play effect that is fixing and adjustment C type jig suspended support device 69.The structure of the structure 73 of No. 2 gear case C type jig suspended support axle clamp plates and No. 1 gear case C type jig lifting bracing frame clamping plate 72 is completely the same, be fixed by welding on gear case C type jig back shaft 74 centre position, then No. 1 gear case C type jig lifting bracing frame clamping plate 72 are sleeved on the C type jig back shaft 74 having welded No. 2 gear case C type jig lifting back shaft clamping plate 73, and two back shaft clamping plate are distributed in the both sides of longitudinal column 6 of tested gear case fixed support base 68, and the both sides of longitudinal column 67 are affixed to by T-shaped bolt, thus play hanging, support the effect of C type jig.No. 1 flap 76 is identical with the structure of No. 2 flaps 77, and its upper end through hole is all sleeved on gear case C type jig bolster 74, and have between No. 1 flap 76 and No. 2 flaps 77 and be sleeved on spacer 75 on gear case C type jig back shaft 74 across the verticality in order to ensure flap, thus ensure the stability of hanging; Being connected and fixed by hinge pin 78 between No. 1 flap 76 and the lower end through hole of No. 2 flaps 77, in order to ensure that the stability of certain hanging eliminates stress with the flexibility of appropriateness, all going out nylon jacket is installed in hinge vias.

Tested gear case C type swing pipe Clamp for welding 70 profile is C shape, is solder type parts.By hinge pin 78, tested gear case C type swing pipe Clamp for welding 70 is installed on C type jig suspended support device 69, thus tested gear case support frame device 7 is formed an entirety.Two pieces of identical rubber cushion blocks are arranged on two ports of tested gear case C type swing pipe Clamp for welding 70 respectively, below upper port, No. 1 block rubber 79 is installed, No. 2 block rubbers 80, two block rubbers are installed on lower port and are used to the pinion end of clamping tested gear case.Come by adjustment C type jig suspended support device 69 according to the height of tested gear case 21 simultaneously, thus realize the effect that the tested gear case C type of adjustment swings welded type jig 70.

Consult Fig. 2, described four-degree-of-freedom vibration test device 5 comprises power train test vibrating shaft assembly 11, four-degree-of-freedom vibration table 10.Adopt T-shaped bolt power train to be tested vibrating shaft assembly 11 to be fixed on four-degree-of-freedom vibration table 10, the axis of rotation of tested gearbox shaft 20 that power train is tested in vibrating shaft assembly 11 is parallel with the long limit of the T-shaped beam surface upper 30 of the T-shaped crossbeam 23 in four-degree-of-freedom vibration table 10.

Described power train test vibrating shaft assembly 11 comprises identical tested gearbox shaft bearing 19, No. 2 taper connection ring flanges 62 of tested gearbox shaft 20, two structures tested gearbox shaft bearing round nut 64 identical with two nested structures and tested gearbox shaft bearing stop washer 63.Tested gearbox shaft 20 is fixedly mounted on T-shaped crossbeam 23 by the tested gearbox shaft bearing 19 that two structures are identical, and the axis of rotation of tested gearbox shaft 20 is parallel with the long limit of T-shaped beam surface upper 30; It is interference fit that tested gear case 21 is sleeved on tested gearbox shaft 20.Tested gearbox shaft 20 two ends are arranged on respectively in the identical tested gearbox shaft bearing 19 of structure and are rotationally connected.The inner side of every platform tested gearbox shaft bearing 19 is connected with the end contact of tested gearbox shaft bearing labyrinth seal circle 65 by the shaft shoulder of tested gearbox shaft 20.The right side of the tested other end of gearbox shaft bearing labyrinth seal circle 65 and the CRH3 axle box bearing inner ring in tested gearbox shaft bearing 19 or left side contact are connected, thus achieve the axial location of tested gearbox shaft 20 or tested gearbox shaft bearing 19.Tested gearbox shaft 20 one end outside tested gearbox shaft bearing 19 is fixed by tested gearbox shaft bearing round nut 64 and tested gearbox shaft bearing stop washer 63.Comprise CRH3 axle box bearing in tested gearbox shaft bearing 19, ensure that enough axial carrying capacities.No. 2 taper connection ring flanges 62 are connected to the left end of tested gearbox shaft 20 by double key system.

Consult Fig. 4, described four-degree-of-freedom vibration table 10 comprises T-shaped crossbeam 23, No. 1 vertical actuator 25, No. 2 vertical actuator 28, No. 1 longitudinal tie device 26, No. 2 longitudinal tie devices 27, No. 1 vertical transverse movement turning device 24, No. 2 vertical transverse movement turning devices 29.

The right-hand member of No. 1 vertical transverse movement turning device 24 and the left side of T-shaped crossbeam 23 with bolts, and No. 1 in No. 1 vertical transverse movement turning device 24 vertical with the left side of T-shaped crossbeam to exciting pull bar 41 in length and breadth, No. 1 in No. 1 vertical transverse movement turning device 24 to exciting pull bar 41 and No. 1, longitudinal tie device 26 is orthogonal and left and right is adjacent in length and breadth.No. 2 of No. 1 longitudinal tie device 26, No. 2 longitudinal tie devices 27, No. 2 vertical transverse movement turning devices 29 in length and breadth to the axis of rotation of exciting pull bar 81 all perpendicular to No. 2 longitudinal tie seats 32, No. 3 longitudinal tie seats 34, No. 4 longitudinal tie seats 36 corresponding on T-shaped crossbeam 23 front, and the axis of rotation of No. 1 longitudinal tie device 26, No. 2 longitudinal tie devices 27, No. 2 vertical transverse movement turning devices 29 is parallel to each other.No. 1 vertical actuator 25, No. 2 vertical actuator 28 are arranged on the below of the T-shaped crossbeam left and right sides, vertical Connection Block 35 bolt of No. 33,2, the vertical Connection Block in No. successively with 1, upper end of No. 1 vertical actuator 25, No. 2 vertical actuator 28 is connected, and the lower end of No. 1 vertical actuator 25, No. 2 vertical actuator 28 is vertically fixedly connected with ground.

Consult Fig. 5, described T-shaped crossbeam 23 is a case body structural member, T-shaped crossbeam 23 overlook be one T-shaped, T-shaped crossbeam 23 is main be considered as one T-shaped, T-shaped beam surface upper 30 is provided with T-slot.T-shaped crossbeam 23 is welded with respectively No. 1 longitudinal tie seat 31, No. 2 longitudinal tie seats 32, No. 3 longitudinal tie seats 34, No. 4 longitudinal tie seats 36, No. 1 vertical Connection Block 33, No. 2 vertical Connection Blocks 35.The left side of T-shaped crossbeam 23 is welded and fixed No. 1 longitudinal tie seat 31; T-shaped crossbeam 23 front is welded with respectively No. 2 longitudinal tie seats 32, No. 3 longitudinal tie seats 34, No. 4 longitudinal tie seats 36, No. 2 longitudinal tie seats 32 and No. 4 longitudinal tie seats 36 lay respectively on the position of the left and right sides, T-shaped crossbeam 23 front, be similar on T-shaped two ends, left and right, No. 3 longitudinal tie seats 34 are fixedly mounted on the positive basifacial of T-shaped crossbeam 23, are similar to T-shaped lower end; Symmetrically through being welded and fixed No. 1 vertical actuator Connection Block 33 and No. 2 vertical actuator Connection Blocks 35 on the bottom surface at the two ends, left and right in T-shaped crossbeam 23 front; No. 2 longitudinal tie seats 32 of T-shaped crossbeam frontal left are adjacent and orthogonal with No. 1 longitudinal tie seat about 31 of T-shaped crossbeam left end face, simultaneously neighbouringly with No. 1 vertical actuator Connection Block 33 to connect and vertical, No. 1 longitudinal tie seat 31, No. 2 longitudinal tie seats 32 and No. 1 vertical actuator Connection Block 33 three intersect vertically right angle each other between two, are positioned at the left end of T-shaped crossbeam 23.No. 4 longitudinal tie seats 36 of T-shaped crossbeam 23 front upper right quarter and No. 2 vertical actuator Connection Blocks 35 of crossbeam upper right side bottom surface are neighbouring to be connect and vertical.

Consult Fig. 4, be bolted No. 1 longitudinal connecting support seat 42 in No. 1 vertical transverse movement turning device 24, be fixed on No. 1 longitudinal tie seat 31 by No. 1 longitudinal connecting support seat 42, and in No. 1 vertical transverse movement turning device 24 No. 1 in length and breadth to the axis of rotation of exciting pull bar 41 perpendicular to No. 1 longitudinal tie seat 31.No. 1 connecting support seat 82 in No. 1 longitudinal tie device 26 with bolts, is fixed on No. 2 longitudinal tie seats 32 by No. 1 connecting support seat 82, and the axis of rotation of No. 1 exciting pull bar 83 in No. 1 longitudinal tie device 26 is perpendicular to No. 2 longitudinal tie seats 32.No. 2 connecting support seats 84 in No. 2 longitudinal tie devices 27 with bolts, are fixed on No. 3 longitudinal tie seats 34 by No. 2 connecting support seats 84, and the axis of rotation of No. 2 exciting pull bars 85 in No. 2 longitudinal tie devices 27 is perpendicular to No. 3 longitudinal tie seats 34.No. 2 longitudinal connecting support seats 86 in No. 2 vertical transverse movement turning devices 29 with bolts, be fixed on No. 4 longitudinal tie seats 36 by No. 2 longitudinal connecting support seats 86, and in No. 2 vertical transverse movement turning devices 29 No. 2 in length and breadth to the axis of rotation of exciting pull bar 81 perpendicular to No. 4 longitudinal tie seats 36.No. 1 vertical connecting support seat 87 in No. 1 vertical actuator 25 with bolts, is fixed on No. 1 vertical Connection Block 33 by No. 1 vertical connecting support seat 87, and the axis of rotation in No. 1 vertical actuator 25 is perpendicular to No. 1 vertical Connection Block 33.No. 2 vertical connecting support seats 88 in No. 2 vertical actuator 28 with bolts, are fixed on No. 2 vertical Connection Blocks 35 by No. 2 vertical connecting support seats 88, and the axis of rotation in No. 2 vertical actuator 28 is perpendicular to No. 2 vertical Connection Blocks 35.

Flexible measurement range selection ± the 300mm of described No. 1 vertical actuator 25, No. 1 vertical connecting support seat of No. 1 vertical actuator 25 upper end is with bolts on No. 1 vertical Connection Block 33, and No. 1 vertical actuator 25 lower end is bolted on pre-embedded steel slab (ground).No. 2 vertical actuator 28 are identical with No. 1 vertical actuator 25 physical construction, and are in the below at T-shaped crossbeam 23 two ends together.Realize T-shaped crossbeam 23 along Z-direction upward-downward translation by the motion in the same way of No. 1 vertical actuator 25 and No. 2 vertical actuator 28.No. 1 vertical actuator 25 and the counter motion of No. 2 vertical actuator 28, namely No. 1 vertical actuator 25 and No. 2 vertical actuator 28 1 stretch one rise and one drop that a contracting realizes the two ends, left and right of T-shaped crossbeam 23, thus realize the motion that T-shaped crossbeam 23 rotates around Y direction.

No. 1 described longitudinal tie device 26 comprises No. 1 identical connecting support seat 82 of identical No. 1 ball pivot 43, two structures of No. 1 longitudinal tie 83, two structures.The two ends of No. 1 longitudinal tie 83 connect No. 1 connecting support seat 82 respectively by No. 1 ball pivot 43 that structure is identical.No. 2 longitudinal tie devices 27 are identical with No. 1 longitudinal tie device 26 physical construction, and installation site is different; No. 2 longitudinal tie devices 27 comprise No. 2 identical connecting support seats 84 of identical No. 2 ball pivots 89, two structures of No. 2 longitudinal ties 85, two structures.One end of the identical No. 2 longitudinal tie devices 27 of two structures and No. 1 longitudinal tie device 26 respectively and No. 2 longitudinal tie seats 32 be welded on crossbeam be connected with the bolt of No. 3 longitudinal tie seats 36, the other end is fixed on the pre-embedded steel slab in ground, ensure being horizontally disposed with of No. 2 longitudinal tie devices 27 and No. 1 longitudinal tie device 26, play the effect retraining T-shaped crossbeam 23 simultaneously.

Consult Fig. 6, described No. 1 vertical transverse movement turning device 24 comprise No. 1 in length and breadth to No. 37,1, exciting pull rod device in length and breadth to the two ball pivot actuator devices 39 of turnover No. 38,1, assembly.Wherein: No. 1 comprises No. 1 in length and breadth to the longitudinal hitch ball hinged-support device 40 of No. 41,1, exciting pull bar to exciting pull rod device 37 in length and breadth; No. 1 longitudinal hitch ball hinged-support device 40 is made up of No. 1 ball pivot 43 and No. 1 longitudinal connecting support seat 42.(No. 1 ball pivot, No. 2 ball pivots, No. 3 ball pivot physical constructions are all consistent, and installation site is different)

No. 1 longitudinal connecting support seat 42 adopts bolt to be fixedly connected with No. 1 longitudinal tie seat 31 being welded on left side, T-shaped crossbeam 23 upper end.No. 1 adopts No. 1 ball pivot 43 and No. 1 longitudinal connecting support seat 42 to be rotationally connected in length and breadth to one end of exciting pull bar 41, and No. 1 is horizontal positioned to exciting pull bar 41 in length and breadth, and No. 1 axis of rotation in length and breadth to exciting pull bar 41 is vertical with the installed surface of No. 1 longitudinal connecting support seat 42.No. 1 is rotationally connected to the one end of assembly 38 of transferring to the other end of exciting pull bar 41 in length and breadth by another No. 1 ball pivot 43 and No. 1 in length and breadth, and the centre of gyration of two No. 1 ball pivots 43 is in the same plane.No. 1 in length and breadth to turnover assembly 38 another (under) end employing No. 1 bearing pin 57 connects the upper end of No. 1 two ball pivot actuator devices 39.No. 1 two ball pivot actuator devices 39 is that vertical direction is installed, and device axis of rotation is perpendicular to ground.In embodiment, the range of No. 1 two ball pivot actuator devices 39 selection is ± 300mm, and the lower end of No. 1 two ball pivot actuator devices 39 is bolted on the embedded board of ground.No. 1 in this testing table not only has No. 1, connection in length and breadth to the effect of the two ball pivot actuator devices 39 of exciting pull rod device 37 and No. 1 to turnover assembly 38 in length and breadth, and by the catenary motion of No. 1 two ball pivot actuator devices 39, No. 1 can be changed in length and breadth to the horizontal motion of exciting pull bar 41.Just because of there is such structure, therefore No. 1 vertical transverse movement turning device 24 is arranged on the left end of T-shaped crossbeam 23, the vertical motion of T-shaped crossbeam 23 bottom actuator can be converted into the tangential movement of longitudinal tie thus achieves the operating mode of moving of T-shaped crossbeam 23 along X-direction translation.

Described No. 2 vertical transverse movement turning devices 29 are identical with No. 1 vertical transverse movement turning device 24 physical construction.Difference is that installation site is different.No. 2 vertical transverse movement turning devices 29 are arranged on No. 4 longitudinal tie seats 36 on the right side of T-shaped crossbeam 23 front upper portion, and No. 2 is horizontal positioned to exciting pull bar in length and breadth, and No. 2 axiss of rotation in length and breadth to exciting pull bar are vertical with the installed surface of No. 4 longitudinal tie seats 36.No. 2 in No. 2 vertical transverse movement turning devices 29 two ball pivot actuator devices make catenary motion, thus achieve No. 2 in length and breadth to the translation of the horizontal direction of exciting pull bar, and ensure that the translation of T-shaped crossbeam 23 along Y direction according to installation site.

The motion of No. 1 vertical transverse movement turning device 24 defines the move operating mode of T-shaped crossbeam 23 along X-direction translation; The motion of No. 2 vertical transverse movement turning devices 29, defines the move operating mode of T-shaped crossbeam 23 along Y direction translation.The motion in the same way of No. 1 vertical actuator 25 and No. 2 vertical actuator 28 realizes the move operating mode of testing table along Z-direction.The counter motion of No. 1 vertical actuator 25 and No. 2 vertical actuator 28, realizes the motion operating mode that T-shaped crossbeam 23 rotates around Y-axis.Meanwhile ensure being horizontally disposed with of No. 1 longitudinal tie device 26 and No. 2 longitudinal tie devices 27, and its axis of rotation is all perpendicular to the front of T-shaped crossbeam 23, plays the effect retraining T-shaped crossbeam 23; Therefore the mode of motion of four degree of freedom of T-shaped crossbeam 23 is defined by the mode of motion of above four actuator, thus drive EMU kinematic train assembly authentic experiments platform simulation four-degree-of-freedom motion oscillations operating mode, thus train can be simulated well at actual motion.

Consult Fig. 7 to Fig. 8, No. 1 in described No. 1 vertical transverse movement turning device 24 longitudinal hitch ball hinged-support device 40 comprises No. 1 longitudinal connecting support seat 42, No. 1 ball pivot 43.Wherein: No. 1 ball pivot 43 comprises No. 1 oscillating bearing device 44, No. 1 oscillating bearing inner ring back-up ring 45 and No. 1 longitudinal tie coupling spindle 46 is formed.On the outside surface of No. 1 longitudinal tie coupling spindle 46, cover has No. 1 oscillating bearing device 44, and No. 1 oscillating bearing device 44 and No. 1 longitudinal tie coupling spindle 46 concentric fits are installed, simultaneously in order to prevent rocking of No. 1 oscillating bearing device 44, No. 1 oscillating bearing inner ring back-up ring 45 is respectively installed in the both sides of No. 1 oscillating bearing device 44, and No. 1 oscillating bearing inner ring back-up ring 45 is concentric with No. 1 longitudinal tie coupling spindle 46.

Consult Fig. 9 to Figure 13, No. 1 in described No. 1 vertical transverse movement turning device 24 comprises No. 1 in length and breadth to transferring No. 49,1, arm supporting base in length and breadth to turnover arm 47 and No. 1 arm back shaft 48 of transferring to turnover assembly 38 in length and breadth.No. 1 is bolted on the pre-embedded steel slab of ground to turnover arm supporting seat 49 in length and breadth, prevents from bringing No. 1 rocking in length and breadth to turnover assembly 38 in No. 1 two ball pivot actuator devices 39 motion process, thus ensures No. 1 in length and breadth to the stability of turnover assembly 38,

Described No. 1 in length and breadth to turnover arm 47 are structural members of a V-shape, No. 1 in length and breadth to turnover arm 47 by No. 1 of V-shaped in length and breadth to turnover arm front end panel 50, No. 1 of V-shaped form to turnover arm left support floor 53 with cylinder-shaped sleeve 54 in length and breadth to No. 52,1, turnover arm right support floor in length and breadth to No. 51,1, turnover arm rear bearing sheet in length and breadth.Wherein: No. 1 of V-shaped identical to structure in length and breadth to turnover arm rear bearing sheet 51 of turnover arm front end panel 50 and V-shaped No. 1 in length and breadth.All in length and breadth three through holes are set to two ends of arm rear bearing sheet 51 of transferring and middle to turnover arm front end panel 50 and No. 1 in length and breadth at No. 1, three through holes are arranged in isosceles triangle to turnover arm front end panel 50 and No. 1 in length and breadth in length and breadth at No. 1 on arm rear bearing sheet 51 of transferring, two through-hole structures of two end settings are identical, but less than the diameter of middle through hole, the axis of rotation of three through holes is parallel to each other; In embodiment, the diameter of three through holes is 90cm, 90cm, 110cm respectively.No. 1 of V-shaped is 110cm to the Circularhole diameter of arm rear bearing sheet 51 middle of transferring to turnover arm front end panel 50 and No. 1 in length and breadth in length and breadth, and two ends are 90cm in addition.Place to arm rear bearing sheet 51 parallel side-by-side of transferring in length and breadth to turnover arm front end panel 50 with No. 1 in length and breadth for No. 1, No. 1 is placed in No. 1 in length and breadth to transferring arm front end panel 50 and No. 1 in length and breadth to transfer between arm rear bearing sheet 51 and to adopt welding manner to be connected and fixed integral to arm right support floor 52 of transferring in length and breadth from left to right successively to arm left support floor 53 of transferring, cylinder-shaped sleeve 54 and No. 1 in length and breadth.Cylinder-shaped sleeve 54 and No. 1 in length and breadth to turnover arm front end panel 50 with No. 1 in length and breadth to the axis of rotation conllinear of the large round tube hole in arm rear bearing sheet 51 middle of transferring, and No. 1 in length and breadth to transfer arm front end panel 50 and No. 1 in length and breadth to the axis of rotation conllinear of the small through hole at arm rear bearing sheet 51 two ends of transferring.No. 1 in length and breadth to turnover arm left support floor 53 and No. 1 left and right sides being placed in cylinder-shaped sleeve 54 in length and breadth to arm right support floor 52 of transferring to strengthen No. 1 in length and breadth to the intensity of arm 47 of transferring, then it is integral to adopt welding manner to be connected and fixed.

Described No. 1 is adopt to be bolted in ground on pre-embedded steel slab to turnover arm supporting seat 49 in length and breadth.For retraining No. 1 in length and breadth to the direction of motion of turnover assembly 38.No. 1 is welded to turnover arm supporting seat 49 by No. 1 collateral fagging 55 3 part that No. 1 supporting seat base plate 56 is identical with two block structures in length and breadth, No. 1 supporting seat base plate 56 is rectangular flat structural members, row's bolt hole is respectively provided with in two broadside sides of rectangular flat structural member, by the bolt hole erection bolt that two rows are arranged side by side, thus No. 1 is fixed on the pre-embedded steel slab in ground to turnover arm supporting seat 49 in length and breadth.Two pieces No. 1 collateral fagging 55 is triangle flat plate structural members that structure is identical, and be provided with one at its upper end for installing the round tube hole of No. 1 turnover arm back shaft 48, and this two round tube hole is concentric, same to radius, in embodiment, radius is 110cm.

No. 1 described back shaft 57 is cylindrical bar class formation parts, for connecting No. 1 in length and breadth to the lower end of turnover arm 47 and the upper end of No. 1 two ball pivot actuator devices 39.

The principle of work of four-degree-of-freedom power circuit formula kinematic train reliability test bench:

The lower surface (bottom surface) of the T-shaped crossbeam 23 in the four-degree-of-freedom vibration test device 5 in four-degree-of-freedom power circuit formula kinematic train reliability test bench installs No. 1 identical vertical actuator 25 of 2 structures and No. 2 vertical actuator 28 respectively by the symmetrical No. 1 vertical Connection Block 33 in two, left and right and No. 2 vertical Connection Blocks 35.T-shaped crossbeam 23 front by No. 2 longitudinal tie seats 32 and No. 3 longitudinal tie seats 34, the identical No. 1 longitudinal tie device 26 of two structures and No. 2 longitudinal tie devices 27 are installed.Simultaneously T-shaped crossbeam 23 front by No. 4 longitudinal tie seats 36, No. 2 vertical transverse movement turning devices 29 are installed.A No. 1 vertical transverse movement turning device 24 is installed by No. 1 longitudinal tie seat 31 adjacent and at a right angle with No. 2 longitudinal tie seats 32 in the left side of T-shaped crossbeam 23.The motion in the same way of No. 1 vertical actuator 25 that two structures are identical and No. 2 vertical actuator 28, defines the move operating mode of the four-degree-of-freedom vibration table 10 in four-degree-of-freedom vibration test device 5 along Z-direction translation; The counter motion of No. 1 vertical actuator 25 and No. 2 vertical actuator 28, defines the motion operating mode that four-degree-of-freedom vibration table 10 rotates around Y-axis; The motion of No. 1 vertical transverse movement turning device 24, defines the move operating mode of four-degree-of-freedom vibration table 10 along X-direction translation; The motion of No. 2 vertical transverse movement turning devices 29, defines the move operating mode of four-degree-of-freedom vibration table 10 along Y direction translation.Therefore, define the motion of four degree of freedom of four-degree-of-freedom vibration table 10 by the motion of No. 1 vertical actuator 25, No. 2 vertical actuator, 28, No. 1 vertical transverse movement turning device 24 and No. 2 vertical transverse movement turning devices 29 thus drive EMU kinematic train assembly authentic experiments platform to simulate four-degree-of-freedom motion oscillations operating mode.The T-shaped crossbeam 23 of four-degree-of-freedom vibration simulation experimental provision 5 is placed with power train test vibrating shaft assembly 11.Frequency modulation motor (drive motor) in torsion-testing apparatus 1 provides driving moment for whole kinematic train, and moment of torsion is delivered to accompany by torque sensor and taper connection flange by drive motor accompanying examination gearbox shaft 14 in examination gearbox assembly test unit 8.Accompanying examination gear housing-case 13 to be sleeved on and accompanying on examination gearbox shaft 14 is interference fit, the gear wheel of examination gear case 13 is accompanied to be the low speed end of accompanying examination gear case 13, the pinion wheel of examination gear case 13 is accompanied to be the speed end of accompanying examination gear case 13, the canine tooth roller box of accompanying examination gear case 13 is gear wheel, so radius wants large relative to the radius of the pinion wheel fixed by feet, during gear drive, therefore pinion wheel rotational speed claims to accompany the pinion end of examination gear 13 to be called as speed end soon, and gear wheel is called as low speed end.The left end of gear case flexible coupling 2 be connected to the pinion wheel (speed end) of accompanying examination gear case 13, right-hand member is connected to the pinion wheel (speed end) of tested gear case 21.Moment of torsion is delivered to pinion wheel (speed end) by accompanying the gear wheel (low speed end) of examination gear case 13, and then be delivered to pinion wheel (speed end) on tested gear case 21 by gear case flexible coupling 2 by accompanying the moment of torsion of examination gear case 13, be delivered on tested gear case 21 thus, because tested gear case 21 and tested gearbox shaft 20 are interference fit, and then be delivered on the tested gearbox shaft 20 of the power train test vibrating shaft assembly 11 in four-degree-of-freedom vibration simulator 5, thus pass to universal coupling with spider 3, and then the transition axis 59 passed in torque detection testing device 4.While moment of torsion is passed to torque sensor by transition axis 59, also assume responsibility for the labile factor such as moment of flexure and vibration that universal coupling with spider 3 brings, thus ensure that data stabilization.Measuring accuracy is high and well protect torque sensor.Frequency modulation motor (load motor) in torque detection testing device 4 is as system load, and the data according to torque sensor feedback provide the moment of resistance to tested gear case 21.

Four-degree-of-freedom power circuit formula kinematic train reliability test bench mainly carries out fail-test to gear case.Before experiment, the parts of tested gear case 21 and correlation test are installed on testing table.

In embodiment adopt with adoptable standard parts and components detailed:

Stroke hydraulic cylinder series such as No. 1 vertical transverse movement turning device 24 that No. 1 that 1.2 individual structure is identical vertical actuator 25 and No. 2 vertical actuator 28 are identical with two structures and the double piston-rod constant speed that No. 2 vertical transverse movement turning devices 29 all adopt, different according to tested tested gear case 21 weight model, the hydraulic cylinder of different tonnage can be adopted.The hydraulic cylinder tonnage adopted in the present embodiment is 30 tons, and throw of poston is ± 300mm.

2. the universal coupling with spider of SWCBH model that what universal coupling with spider 3 in the present embodiment adopted is.

Claims (8)

1. a four-degree-of-freedom power circuit formula kinematic train reliability test bench, comprises torsion-testing apparatus (1), gear case flexible coupling (2), universal coupling with spider (3) and torque detection testing device (4); It is characterized in that, described four-degree-of-freedom power circuit formula kinematic train reliability test bench also comprises four-degree-of-freedom vibration test device (5);

Described four-degree-of-freedom vibration test device (5) comprises power train test vibrating shaft assembly (11) and four-degree-of-freedom vibration table (10);

Power train test vibrating shaft assembly (11) adopts and is bolted on four-degree-of-freedom vibration table (10), and the axis of rotation of tested gearbox shaft (20) in power train test vibrating shaft assembly (11) is parallel with the long limit of the T-shaped beam surface upper (30) of the T-shaped crossbeam (23) in four-degree-of-freedom vibration table (10).

2. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 1, it is characterized in that, described power train test vibrating shaft assembly (11) comprises the identical tested gearbox shaft bearing stop washer (63) of tested gearbox shaft (20), tested gearbox shaft bearing (19) that two structures are identical, No. 2 taper connection ring flanges (62), two nested structures and tested gearbox shaft bearing round nut (64);

The two ends of tested gearbox shaft (20) are arranged in the identical tested gearbox shaft bearing (19) of structure respectively as being rotationally connected, the shaft shoulder at tested gearbox shaft (20) two ends is connected with the end contact of the tested gearbox shaft bearing labyrinth type sealing ring (65) on tested gearbox shaft bearing (19) respectively, the tested gearbox shaft bearing stop washer (63) that two nested structures are identical and tested gearbox shaft bearing round nut (17) are sleeved on tested gearbox shaft (20) and stretch out on the one end in tested gearbox shaft bearing (19) outside, No. 2 taper connection ring flanges (62) are connected to the left end of tested gearbox shaft (20) by double key system.

3. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 1, it is characterized in that, described four-degree-of-freedom vibration table (10) also comprises No. 1 vertical transverse movement turning device (24), No. 1 vertical actuator (25), No. 1 longitudinal tie device (26), No. 2 longitudinal tie devices (27), No. 2 vertical actuator (28) and No. 2 vertical transverse movement turning devices (29);

No. 1 longitudinal tie seat (31) on the right-hand member of No. 1 vertical transverse movement turning device (24) and T-shaped crossbeam (23) is with bolts, No. 4 longitudinal tie seats (36) on the upper end of No. 2 vertical transverse movement turning devices (29) and T-shaped crossbeam (23) are with bolts, No. 1 longitudinal tie device (26) is with bolts with No. 2 longitudinal tie seats (32) on No. 2 longitudinal tie devices (27) and T-shaped crossbeam (23) and No. 3 longitudinal tie seats (34), No. 1 longitudinal tie device (26), No. 2 longitudinal tie devices (27) are parallel to each other with the axis of rotation of No. 2 in No. 2 vertical transverse movement turning devices (29) in length and breadth to exciting pull bar (81), No. 1 vertical Connection Block (33) on the upper end of No. 1 vertical actuator (25) and No. 2 vertical actuator (28) and T-shaped crossbeam (23) is connected with No. 2 vertical Connection Block (35) bolts, and No. 1 vertical actuator (25) is fixedly connected with ground is vertical with the lower end of No. 2 vertical actuator (28).

4. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 3, it is characterized in that, described No. 1 vertical transverse movement turning device (24) is identical with the structure of No. 2 vertical transverse movement turning devices (29), No. 1 vertical transverse movement turning device (24) comprise No. 1 in length and breadth to exciting pull rod device (37), No. 1 in length and breadth to turnover assembly (38) and No. 1 two ball pivot actuator devices (39);

Described No. 1 comprises No. 1 in length and breadth to exciting pull bar (41) and No. 1 longitudinal hitch ball hinged-support device (40) to exciting pull rod device (37) in length and breadth; No. 1 longitudinal hitch ball hinged-support device (40) is made up of No. 1 ball pivot (43) and No. 1 longitudinal connecting support seat (42);

No. 1 adopts No. 1 ball pivot (43) and No. 1 longitudinal connecting support seat (42) to be rotationally connected in length and breadth to one end of exciting pull bar (41), No. 1 adopts second No. 1 ball pivot (43) to be connected to the one end of assembly (38) of transferring in length and breadth with No. 1 to the other end of exciting pull bar (41) in length and breadth, and the upper end of No. 1 two ball pivot actuator devices (39) adopts No. 1 bearing pin (57) to be connected to the other end of assembly (38) of transferring in length and breadth with No. 1.

5. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 3, it is characterized in that, described No. 1 in length and breadth to turnover assembly (38) comprise No. 1 in length and breadth to turnover arm supporting base (49), No. 1 in length and breadth to turnover arm (47) with No. 1 arm back shaft (48) of transferring;

No. 1 in length and breadth to turnover arm (47) adopt No. 1 turnover arm back shaft (48) be arranged on No. 1 in length and breadth in turnover arm supporting base (49) for being rotationally connected;

No. 1 is welded to turnover arm supporting seat (49) by No. 1 collateral fagging (55) that No. 1 supporting seat base plate (56) is identical with two block structures in length and breadth, No. 1 supporting seat base plate (56) is a rectangular flat structural member, row's bolt hole is respectively provided with in two broadside sides of rectangular flat structural member, two pieces No. 1 collateral fagging (55) is the slab construction part that structure is identical, the upper end of two pieces No. 1 collateral fagging (55) is provided with the identical round tube hole for installing No. 1 turnover arm back shaft (48) of structure, the axis of rotation conllinear of two pieces No. 1 collateral fagging (55) upper end round tube hole.

6. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 5, it is characterized in that, described No. 1 in length and breadth to turnover arm (47) be the structural member of a V-shape, No. 1 in length and breadth to turnover arm (47) by No. 1 in length and breadth to turnover arm front end panel (50), No. 1 in length and breadth to turnover arm rear bearing sheet (51), No. 1 in length and breadth to turnover arm right support floor (52), No. 1 form to turnover arm left support floor (53) and cylinder-shaped sleeve (54) in length and breadth, No. 1 in length and breadth to turnover arm front end panel (50) and No. 1 in length and breadth to transfer arm rear bearing sheet (51) structure identical, No. 1 is provided with through hole to two ends of arm rear bearing sheet (51) of transferring and middle to turnover arm front end panel (50) with No. 1 in length and breadth in length and breadth, two through-hole structures of two end settings are identical, and the axis of rotation of three through holes is parallel to each other, place to arm rear bearing sheet (51) parallel side-by-side of transferring in length and breadth to turnover arm front end panel (50) with No. 1 in length and breadth for No. 1, No. 1 in length and breadth to turnover arm left support floor (53), cylinder-shaped sleeve (54) and No. 1 are placed in No. 1 in length and breadth to transferring arm front end panel (50) and No. 1 in length and breadth to transfer between arm rear bearing sheet (51) and to adopt welding manner to be connected and fixed integral successively to arm right support floor (52) of transferring in length and breadth, cylinder-shaped sleeve (54) and No. 1 in length and breadth to turnover arm front end panel (50) with No. 1 in length and breadth to the axis of rotation conllinear of the large round tube hole in arm rear bearing sheet (51) middle of transferring, No. 1 in length and breadth to turnover arm front end panel (50) with No. 1 in length and breadth to the axis of rotation conllinear of the small through hole at arm rear bearing sheet (51) two ends of transferring.

7. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 1, it is characterized in that, described T-shaped crossbeam (23) is a case body structural member, T-shaped beam surface upper (30) is provided with T-slot, the left side of T-shaped crossbeam (23) is welded and fixed No. 1 longitudinal tie seat (31), the two ends, left and right in T-shaped crossbeam (23) front are welded with No. 3 longitudinal tie seats (34) and No. 4 longitudinal tie seats (36), the front lower weld of T-shaped crossbeam (23) is fixed with No. 3 longitudinal tie seats (34), the bottom surface at the two ends, left and right in T-shaped crossbeam (23) front is welded and fixed No. 1 vertical Connection Block (33) and No. 2 vertical Connection Blocks (35), No. 2 longitudinal tie seats (32) on T-shaped crossbeam (23) are adjacent with No. 1 longitudinal tie seat (31) left and right to be connected and orthogonal, No. 2 longitudinal tie seats (32) and No. 1 vertical actuator Connection Block (33) be neighbouring to be connected and vertical, and No. 4 longitudinal tie seats (36) on T-shaped crossbeam (23) and No. 2 vertical Connection Blocks (35) be neighbouring to be connected and orthogonal.

8. according to four-degree-of-freedom power circuit formula kinematic train reliability test bench according to claim 1, it is characterized in that, described torsion-testing apparatus (1) and four-degree-of-freedom vibration test device (5) are arranged on ground side by side, the long edge position of the T-shaped beam surface upper (30) of the T-shaped crossbeam (23) in the long limit of the rectangle carrying platform (6) in torsion-testing apparatus (1) and four-degree-of-freedom vibration test device (5) is on same plane, the tested gear case (21) of power train test vibrating shaft assembly (11) in four-degree-of-freedom vibration test device (5) with accompany try gearbox assembly test unit (8) accompany that to try gear case (13) be adopt gear case flexible coupling (2) to be connected, the upper workplace of the T-shaped beam surface upper (30) of four-degree-of-freedom vibration test device (5) and the rectangle carrying platform (6) of torsion-testing apparatus (1) be in same level, between parallel distance be 20-40cm, four-degree-of-freedom vibration test device (5) adopts universal coupling with spider (3) to be connected with the torque detection testing device (4) on the left of it, ensure the horizontal positioned of universal coupling with spider (3) simultaneously, and the axis of rotation three line conllinear of transition axis (59) in the axis of rotation of the tested gearbox shaft (20) of power train test vibrating shaft assembly (11) in its axis of rotation and four-degree-of-freedom vibration test device (5) and torque detection testing device (4), the upper surface of the rectangle carrying platform (6) in torsion-testing apparatus (1) and the rectangular support platform in torque detection testing device (4) is provided with some the T-slot be parallel to each other along long limit parallel direction.