CN205642836U

CN205642836U - Rail vehicle axle box bearing comprehensive properties and axle head earthing device wear test platform

Info

Publication number: CN205642836U
Application number: CN201620278554.2U
Authority: CN
Inventors: 苏建; 张亨飏; 陈学渊; 许影; 张益瑞; 牛治慧; 张兰; 陈雷; 张雪平; 陈秋雨; 朱丽叶
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2016-04-06
Filing date: 2016-04-06
Publication date: 2016-10-12
Anticipated expiration: 2026-04-06

Abstract

The utility model discloses a rail vehicle axle box bearing comprehensive properties and axle head earthing device wear test platform, personally experience sth. Part of the body and all fix the vertical stabilizing mean on cast iron T -slot platform with the bearing frame set assembling by experimental axle assembly, horizontal excitation load mechanism, fan group, test carriage spring elevating system and vertical excitation load mechanism constitute, horizontal excitation load mechanism and the horizontal force transmission frame coaxial coupling of bearing frame, vertical stabilizing mean with accompany try bearing bearing frame assembly on fixed surface be connected, fan group install in test bearing bearing frame assembly top, vertical excitation load mechanism is connected with accompanying examination bearing bearing frame assembly bottom surface, test carriage spring elevating system's spring top with the bottom surface contact of test bearing bearing frame assembly is connected. The utility model discloses can test the test to the comprehensive properties of axle box bearing and axle head earthing device's the wearing and tearing circumstances simultaneously, improve test efficiency effectively, save experimental resource.

Description

Rail car axle box bearings synthesis performance and axle head grounding device wear test platform

Technical field

This utility model belongs to rail vehicle technical field of measurement and test, is specifically related to rail car axle box bearings synthesis performance and axle head grounding device wear test platform, it is adaptable to test high speed railway car axle box bearing combination property with axle head grounding device abrasion condition.

Background technology

In recent years, flourish along with China's high ferro cause, each correlation technique of high-speed train achieved breakthrough progress.Wherein, bearing frequently as the important walking support member of rail vehicle, work under bad environment, carrying change, is easily being run at high speed and fatigue rupture is being occurred in the case of high vibration, and the quality of its state directly affects train operating safety.And grounding device is as EMUs earthed system important component part, carry the important function of high-tension current drain, the galvanic corrosion that effectively prevention electric current is produced by EMUs bearing.The performance of bearing and the reliability of grounding device become the key factor affecting rail vehicle safe operation, and relative experimental test technology also becomes a difficult problem urgently to be resolved hurrily.

The most common failure phenomenon of EMUs axle box bearing have pit, peel off, abrade, galvanic corrosion etc., currently, the technology for bearing performance analysis emerges in an endless stream, and domestic and international Production of bearing manufacturer all develops the testing stand that bearing performance is relevant.But these testing stands only rest on operating condition of test, can not truly reflect the actual operating mode of track train axle box bearing.Therefore, the bearing fault analysis that test draws, situation actually used with bearing there is also certain deviation.And rail vehicle axle head grounding device is in operation, it may appear that carbon brush and frictional disk serious wear, affecting the conductive capability of carbon brush, the most fricative dust also can be scurried in axle box, causes the inordinate wear of bearing, the serious off-axis that even results in occur.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the axle box bearing performance in the train actual motion that prior art exists and the infeasible problem of axle head grounding device wear test, it is provided that rail car axle box bearings synthesis performance and axle head grounding device wear test platform.For solving above-mentioned technical problem, this utility model adopts the following technical scheme that realization:

Rail car axle box bearings synthesis performance and axle head grounding device wear test platform, by testing axle assembly and bearing block general assembly body 10 and being each attached to the longitudinal stability mechanism 2 on cast iron T-slot platform 1, laterally exciting load maintainer 3,4, blower fan group 5, test bearing spring lifting mechanism 6,9 and vertical exciting load maintainer 7,8 composition；

Described test axle assembly is provided with belt pulley 77 in the middle part of the test axle assembly 55 of bearing block general assembly body 10, test axle assembly 55 is symmetrically installed with the most successively accompanies examination bearing bearing block assembly 54,56, test bearing bearing block assembly 53,57 and bearing block pass force crossly frame 52,58；

Described horizontal exciting load maintainer 3,4 is coaxially connected with described bearing block pass force crossly frame 52,58 with ball pivot shaft stool assembly 26 by pass force crossly pipe；

With described, described longitudinal stability mechanism 2 accompanies that examination bearing bearing block assembly 54,56 upper surface is fixing to be connected by longitudinal power transmission pipe and ball pivot shaft stool assembly 12,15, in described longitudinal stability mechanism, the horizontal machine of installation passes through belt and is in transmission connection with belt pulley 77；

Blower fan 31,32 support is installed on above described test bearing bearing block assembly 53,57 by described blower fan group 5 by fan supporter 30；

Described vertical exciting load maintainer 7,8 is connected with accompanying examination bearing bearing block assembly bottom surface by vertical exciting cylinder lever connecting rod ball pivot shaft stool 49；

Spring 37 top of described test bearing spring lifting mechanism 6,9 contacts connection with described test bearing bearing block assembly 53,57 bottom surface.

Further, described longitudinal stability mechanism 2 by longitudinal power transmission pipe fix seat 11,14, longitudinal power transmission pipe forms with ball pivot shaft stool assembly 12,15,18 and horizontal machine 13；

It is two that described longitudinal power transmission pipe fixes seat, is all fixedly mounted on described cast iron T-slot platform 1 bottom it, and two longitudinal power transmission pipes are fixed seat Parallel Symmetric and arranged, and are fixedly connected with fixing seat tie-beam 17 between it；Described longitudinal power transmission pipe and ball pivot shaft stool assembly are three, one end of longitudinal power transmission pipe and ball pivot shaft stool assembly described in two of which is arranged on two described longitudinal power transmission pipes and fixes above seat, the other end accompanies examination bearing bearing block assembly 54,56 upper surface described in being arranged on, another described longitudinal power transmission pipe is arranged on described fixing seat tie-beam 17 with one end of ball pivot shaft stool assembly, and by accompanying, examination bearing bearing block tie-beam 19 is fixing with the vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 of described vertical exciting load maintainer to be connected the other end；

Described horizontal machine 13 is positioned at the top of described fixing seat tie-beam 17, and is arranged on two longitudinal power transmission pipes by motor supporting base 16 and fixes between seat.

Further, the ball pivot shaft stool that described longitudinal power transmission pipe is connected by power transmission pipe 21 and its two ends with ball pivot shaft stool assembly 12,15,18 forms；Described power transmission pipe 21 is welded by steel pipe, pipe end-cap, connection seat, in the connecting hole of described connection seat, ball joint bearing exterior ring cap is installed, coordinate with the ball joint bearing inner ring sleeve of ball pivot shaft stool, it is achieved power transmission pipe 21 is freely rotatable around the ball hinge shaft axis of ball pivot shaft stool；Described longitudinal power transmission pipe is connected with other parts by ball pivot shaft stool with ball pivot shaft stool assembly.

Further, described horizontal exciting load maintainer is fixed seat 23 by the horizontal actuator being fixed on cast iron T-slot platform 1 and is sequentially coaxially arranged on horizontal actuator and fixes the horizontal exciting actuator ball pivot shaft stool 29 of plane, horizontal exciting actuator bearing 28, horizontal exciting actuator 27, radial force cell 24, horizontal actuator force transducer on seat 23 and form with ball pivot shaft stool assembly 26 with ball pivot shaft stool connecting plate 25 and pass force crossly pipe；

Described horizontal exciting actuator 27 lies against horizontal actuator and fixes on seat 23 in plane；The piston rod end of described horizontal exciting actuator 27 is threaded, and is attached with the screw thread in radial force cell 24 centre bore by double threaded screw；

Described pass force crossly pipe and the other end of ball pivot shaft stool assembly 26 are coaxially connected with described bearing block pass force crossly frame by ball pivot shaft stool.

Further, described blower fan group 5 is made up of with two blower fans fan supporter 30, described fan supporter 30 is fixed on cast iron T-slot platform 1, and two described blower fans are fixed on the entablature of fan supporter 30, and lays respectively at the top of two described test bearing bearing block assemblies；

The wind pipe of described blower fan is multi-directional ball pipeline, adjusts direction, air port within the specific limits.

Further, described test bearing spring lifting mechanism 6,9 is as the vertical supporting mechanism of test axle assembly with bearing block general assembly body 10, by test bearing bearing block lifting platform base 33, lifting platform fairlead 34,38, lifting platform moves plate 35, spring base 36, spring 37 and two-way hydraulic jack 39 and forms；Described test bearing bearing block lifting platform base 33 is fixedly mounted on cast iron T-slot platform 1, and it has three circular holes, and two described lifting platform fairleads are coaxially fixed on the described circular hole of both sides；Described two-way hydraulic jack 39 is arranged in the described circular hole of centre, and its cylinder barrel is fixing with test bearing bearing block lifting platform base 33 to be connected, and test bearing bearing block lifting platform base 33 side is reserved with the oil pipe passage of two-way hydraulic jack 39；

Described spring base 36 is fixed on lifting platform and moves plate 35 upper surface, and described lifting platform moves plate 35 bottom surface and is provided with two symmetrical connecting rods, and this connecting rod is arranged in described lifting platform fairlead, is fixed in spring base 36 bottom described spring 37.

Further, described vertical exciting load maintainer 7,8 generally lever-type structure, by the vertical excitation beam of vibration bearing pin bearing 40 being fixedly mounted on cast iron T-slot platform 1, vertical exciting lever crossbeam 51, vertical exciting vertical links 44,48, vertical exciting actuator 45, radial force cell 46, vertical exciting cylinder lever connecting rod 50 and vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 form；

Described vertical exciting lever crossbeam 51 afterbody is connected with vertical excitation beam of vibration bearing pin bearing 40 by bearing bearing pin 41, and described vertical exciting lever crossbeam 51 front part sides is connected by vertical links bearing pin 43 vertical exciting vertical links 44,48 bottom described with two；

Described vertical exciting actuator 45 is between two described vertical exciting vertical links 44,48, its lower end is fixedly mounted on described cast iron T-slot platform 1, its upper end is connected with radial force cell 46 by double threaded screw, described radial force cell 46 connection fixed above has actuator crossbeam axle 47, the short axle of described actuator crossbeam axle 47 both sides to be arranged in the installing hole on two described vertical exciting vertical links 44,48 tops；

Described vertical exciting cylinder lever connecting rod 50 upper end is hinged with vertical exciting cylinder lever connecting rod ball pivot shaft stool 49, it is internal that described vertical exciting cylinder lever connecting rod 50 lower end is arranged on the vertical exciting lever crossbeam 51 on rear side of described vertical exciting vertical links 44,48, and is connected with vertical exciting lever crossbeam 51 by cylinder lever connecting rod bearing pin 42；

Described vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 accompanies examination bearing bearing block assembly bottom surface described in being fixedly connected on, vertical excitation is delivered on described test axle assembly and bearing block general assembly body 10 by described vertical exciting actuator 45 by the lever transmission mechanism being made up of successively radial force cell 46, actuator crossbeam axle 47, vertical exciting vertical links 44,48, vertical exciting lever crossbeam 51 and vertical exciting cylinder lever connecting rod 50.

Further, described test axle assembly 55 is by test axle 78, belt pulley 77 and the most in couples be symmetrically mounted on test axle 78 on accompanying examination bearing inside labyrinth oil sealing 76, 79, examination bearing 75 is accompanied in inner side, 80, examination bearing 74 is accompanied in outside, 81, accompany labyrinth oil sealing 73 outside examination bearing, 82, clamp nut group 72, 83, labyrinth oil sealing 71 inside test bearing, 84, test bearing 70, 85, spindle nose end cap 69, 86, contact disc installs cushion block 68, 87, ground connection rotor contact dish 67, 88, brush assembly assembly 66, 89, transition flange 65, 90 and earth lead hemisphere cover 64, 91 compositions；

Further, described bearing block pass force crossly frame 52,58 one end is connected with ball pivot shaft stool assembly 26 with described pass force crossly pipe, and the other end is connected with described test bearing bearing block assembly 53,57 cycle surface；

Test bearing bearing block that described test bearing bearing block assembly 53,57 is made up of test bearing bearing block upper body 60, test bearing bearing block lower body 61 and the SMD temperature sensor 59 being connected on test bearing bearing block form；

Described test bearing bearing block inside is the cavity of described test bearing shape, and test bearing bearing block inner surface fits with test bearing outer ring, fixes rear test bearing outer ring in test bearing bearing block without relative motion；

Described test bearing bearing block end has the annular groove installing oil sealing；

Described test bearing bearing block lower body 61 bottom surface has circular groove, and described spring 37 top is placed in one；

Described accompany examination bearing bearing block assembly 54,56 by accompanying examination bearing bearing block upper body 62 and the examination bearing bearing block and being connected to of accompanying accompanying examination bearing bearing block lower body 63 to form to accompany the SMD temperature sensor 59 on examination bearing bearing block to form；

Described accompany that examination bearing bearing block is internal accompanies examination bearing and described inner side to accompany the cavity of examination bearing configuration for described outside, accompany examination bearing bearing block inner surface and accompany examination bearing outer ring and fit, fixing after accompany examination bearing outer ring without relative motion in accompanying examination bearing bearing block；

The described annular groove accompanying examination bearing bearing block end to have installation oil sealing；

Described to accompany examination bearing bearing block upper body 62 end face be that connecting plate is connected with the ball pivot shaft stool of described longitudinal power transmission pipe with ball pivot shaft stool assembly 12,15 one end, and accompanying and trying bearing bearing block lower body 63 bottom surface is that connecting plate is connected with described vertical exciting cylinder lever connecting rod ball pivot shaft stool 49.

Compared with prior art, the beneficial effects of the utility model are:

1, rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform can carry out experimental test to the combination property of axle box bearing and the abrasion condition of axle head grounding device simultaneously, the function of two set testing equipments is focused on test battery equipment, is effectively improved test efficiency, saves test resource.

2, the horizontal exciting load maintainer that rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform are comprised and vertical exciting load maintainer, it is possible to accurately load subjected to and vibration in simulation high-speed train actual motion.Coordinate control system, it is possible to complete the loading of analog orbit spectrum, meet current most of analog orbit road and have a try the needs tested.

3, the horizontal exciting load maintainer that rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform comprise and vertical exciting load maintainer, all use exciting force transmission mechanism, vibration is not loaded directly on test bearing seat.Ensure that the vibration loading signal of sensor measurement is more accurate, it is to avoid the signal of collection disturbs.Reduce actuator to be vibrated by from other actuator simultaneously, effectively extend the service life of actuator.

4, rail car axle box bearings synthesis performance described in the utility model realizes dead load loading with axle head grounding device wear test platform by the spring lifting mechanism of a set of hydraulic loaded, dead load loading capacity is simulated by hydraulic jack, in conjunction with the hydraulic actuator adjustable characteristic of exciting initial position, precisely simulate the dead load that track train bearing is subject in actual motion.

5, the test demand that rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform are capable of in bigger velocity interval, the highest static speed can reach 500km/h, can meet the test of high-speed train during China is currently in operation and develops.

6, the blower fan group that rail car axle box bearings synthesis performance described in the utility model comprises with axle head grounding device wear test platform, it is possible to the axle box wind speed of simulation 0-180km/h, the windage being subject at axle box in accurate simulation high-speed train actual motion.

7, rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform reasonable in design, each associated mechanisms is arranged on cast iron T-slot platform relatively independently, it is simple to test bearing and brush, the dismounting of frictional disk and the maintenance of testing equipment.

Accompanying drawing explanation

Fig. 1 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Fig. 2 is the front view of rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Fig. 3 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of axle head grounding device wear test Tai Zhong longitudinal stability mechanism；

Fig. 4 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and power transmission pipe in axle head grounding device wear test platform with ball pivot shaft stool assembly；

Fig. 5 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of tie-beam in axle head grounding device wear test platform；

Fig. 6 is the axonometric projection graph of laterally exciting load maintainer in rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Fig. 7 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of actuator bearing in axle head grounding device wear test platform；

Fig. 8 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform apoplexy unit；

Fig. 9 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of test bearing spring lifting mechanism in axle head grounding device wear test platform；

Figure 10 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of lifting platform fairlead in axle head grounding device wear test platform；

Figure 11 is the axonometric projection graph that rail car axle box bearings synthesis performance described in the utility model and lifting platform in axle head grounding device wear test platform move plate；

Figure 12 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of spring base in axle head grounding device wear test platform；

Figure 13 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of vertical exciting load maintainer in axle head grounding device wear test platform；

Figure 14 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of vertical excitation beam of vibration bearing pin bearing in axle head grounding device wear test platform；

Figure 15 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of vertical exciting vertical links in axle head grounding device wear test platform；

Figure 16 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of actuator crossbeam axle in axle head grounding device wear test platform；

Figure 17 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of vertical exciting cylinder lever connecting rod in axle head grounding device wear test platform；

Figure 18 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of vertical exciting lever crossbeam in axle head grounding device wear test platform；

Figure 19 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and test axle assembly in axle head grounding device wear test platform with bearing block general assembly body；

Figure 20 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform bottom bracket pass force crossly frame；

Figure 21 is rail car axle box bearings synthesis performance described in the utility model and the axonometric projection graph of test bearing bearing block assembly in axle head grounding device wear test platform；

Figure 22 is rail car axle box bearings synthesis performance described in the utility model and the upward view of test bearing bearing block lower body in axle head grounding device wear test platform；

Figure 23 is the axonometric projection graph accompanying examination bearing bearing block assembly in rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Figure 24 is the right pseudosection accompanying examination bearing bearing block assembly in rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Figure 25 is the explosive view testing axle assembly in rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

Figure 26 is the axonometric projection graph of rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform middle belt pulley；

Figure 27 is the axonometric projection graph testing axle in rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform；

In figure:

1, cast iron T-slot platform；2, longitudinal stability mechanism；3, No. 1 horizontal exciting load maintainer；4, No. 2 horizontal exciting load maintainers；5, blower fan group；6, No. 1 test bearing spring lifting mechanism；7, No. 1 vertical exciting load maintainer；8, No. 2 vertical exciting load maintainers；9, No. 2 test bearing spring lifting mechanisms；10, test axle assembly and bearing block general assembly body；11, No. 1 longitudinal power transmission pipe fixes seat；12, No. 1 longitudinal power transmission pipe and ball pivot shaft stool assembly；13, horizontal machine；14, No. 2 longitudinal power transmission pipes fix seat；15, No. 2 longitudinal power transmission pipes and ball pivot shaft stool assembly；16, motor supporting base；17, fixing seat tie-beam；18, No. 3 longitudinal power transmission pipes and ball pivot shaft stool assembly；19, examination bearing bearing block tie-beam is accompanied；20, No. 1 ball pivot shaft stool；21, power transmission pipe；22, No. 2 ball pivot shaft stools；23, horizontal actuator fixes seat；24,30t radial force cell；25, horizontal actuator force transducer and ball pivot shaft stool connecting plate；26, pass force crossly pipe and ball pivot shaft stool assembly；27, horizontal exciting actuator；28, horizontal exciting actuator bearing；29, horizontal exciting actuator ball pivot shaft stool；30, fan supporter；31, No. 1 blower fan；32, No. 2 blower fans；33, test bearing bearing block lifting platform base；34, No. 1 lifting platform fairlead；35, lifting platform moves plate；36, spring base；37, spring；38, No. 2 lifting platform fairleads；39, two-way hydraulic jack；40, vertical excitation beam of vibration bearing pin bearing；41, bearing bearing pin；42, cylinder lever connecting rod bearing pin；43, vertical links bearing pin；44, No. 1 vertical exciting vertical links；45, vertical exciting actuator；46,50t radial force cell；47, actuator crossbeam axle；48, No. 2 vertical exciting vertical links；49, vertical exciting cylinder lever connecting rod ball pivot shaft stool；50, vertical exciting cylinder lever connecting rod；51, vertical exciting lever crossbeam；52, No. 1 bearing block pass force crossly frame；53, No. 1 test bearing bearing block assembly；54, examination bearing bearing block assembly is accompanied for No. 1；55, test axle assembly；56, examination bearing bearing block assembly is accompanied for No. 2；57, No. 2 test bearing bearing block assemblies；58, No. 2 bearing block pass force crossly framves；59, SMD temperature sensor；60, test bearing bearing block upper body；61, test bearing bearing block lower body；62, examination bearing bearing block upper body is accompanied；63, examination bearing bearing block lower body is accompanied；64, No. 1 earth lead hemisphere cover；65, No. 1 transition flange；66, No. 1 brush assembly assembly；67, No. 1 ground connection rotor contact dish；68, No. 1 contact disc installs cushion block；69, No. 1 spindle nose end cap；70, No. 1 test bearing；71, labyrinth oil sealing inside No. 1 test bearing；72, No. 1 clamp nut group；73, labyrinth oil sealing outside examination bearing is accompanied for No. 1；74, examination bearing is accompanied in 1 extra side；75, examination bearing is accompanied in No. 1 inner side；76, labyrinth oil sealing inside examination bearing is accompanied for No. 1；77, belt pulley；78, test axle；79, labyrinth oil sealing inside examination bearing is accompanied for No. 2；80, examination bearing is accompanied in No. 2 inner sides；81, examination bearing is accompanied in 2 extra sides；82, labyrinth oil sealing outside examination bearing is accompanied for No. 2；83, No. 2 clamp nut groups；84, labyrinth oil sealing inside No. 2 test bearing；85, No. 2 test bearing；86, No. 2 spindle nose end caps；87, No. 2 contact discs install cushion block；88, No. 2 ground connection rotor contact dishes；89, No. 2 brush assembly assemblies；90, No. 2 transition flange；91, No. 2 earth lead hemisphere covers；92, No. 1 test bearing axle；93, No. 1 shaft shoulder；94, No. 1 connects screw thread；95, examination bearing axle is accompanied for No. 1；96, No. 2 shaft shoulders；97, No. 3 shaft shoulders；98, examination bearing axle is accompanied for No. 2；99, No. 2 connect screw thread；100, No. 4 shaft shoulders；101, No. 2 test bearing axles.

Detailed description of the invention

Below in conjunction with Figure of description, detailed description of the invention of the present utility model is described further:

This utility model provides a kind of high speed railway car axle box bearing combination property and axle head grounding device wear test platform, to meet the needs tested track axle for vehicle axle box bearing combination property and axle head grounding device abrasion condition simultaneously simultaneously.This testing stand have employed rational exciting load placement scheme, avoid on the vehicle of actual motion, carry out danger and the loss that destructive testing is brought, three degree of freedom and the vibration operating mode of Three Degree Of Freedom coupling can be simulated respectively, the vibrational state of analog orbit vehicle actual motion the most to the full extent, thus ensure that test data and the correctness of test result and verity.This testing stand disclosure satisfy that the research and development of rail vehicle bearing and the needs of detection, actually used situation can be simulated and carry out (such as rotating speed, axially and radially loading, temperature, lubricant grease etc.) anxious accelerated test (i.e. from static quick raising rotating speed) of bearing, endurancing (running up the most for a long time) under different working condition, and energy multiple important parameters such as accurate recording bearing housing temperature and vibration, to analyze the abrasiveness of bearing, fatigue resistance and lubricant grease characteristic.The abrasion condition of axle head grounding device can also be carried out regular monitoring simultaneously, and investigate the impact of Frication powder foot couple bearing performance.Effective foundation is provided for improving design bearing manufacture level and axle head grounding device selection design.

Refering to Fig. 1 to Fig. 2, rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform are made up of with bearing block general assembly body 10 cast iron T-slot platform 1, longitudinal stability mechanism 2,13, No. 2 horizontal exciting load maintainers 4 of horizontal exciting load maintainer, 5, No. 1 test bearing spring lifting mechanism 7, No. 2 vertical exciting load maintainer of 6, No. 1 vertical exciting load maintainer of blower fan group 8,2 test bearing spring lifting mechanism 9, test axle assembly.Wherein 3, No. 2 horizontal exciting load maintainers 4 of the horizontal exciting load maintainer of longitudinal stability mechanism 2,1,5, No. 1 test bearing spring lifting mechanism 7, No. 2 vertical exciting load maintainer of 6, No. 1 vertical exciting load maintainer of blower fan group 8,2 test bearing spring lifting mechanism 9 are all arranged on cast iron T-slot platform 1 by T-bolt, so that each inter-agency installation, arrangement form are succinct, it is easy to ensure each inter-agency position of related features and assembly precision；The replacing of the consumable accessories after testing stand described in the utility model comes into operation, data acquisition and maintenance are easy in the most each inter-agency relatively independent installation, type of attachment.Cast iron T-slot platform 1 is connected with concrete foundation by foundation bolt, thus ensures the firm of whole testing stand.

Refering to Fig. 3, longitudinal stability mechanism 2 is fixed 11, No. 1 longitudinal power transmission pipe of seat and ball pivot shaft stool assembly 12,13, No. 2 longitudinal power transmission pipes of horizontal machine by No. 1 longitudinal power transmission pipe and fixes 14, No. 2 longitudinal power transmission pipes of seat and ball pivot shaft stool assembly 15, motor supporting base 16, fixing 17, No. 3 longitudinal power transmission pipes of seat tie-beam and ball pivot shaft stool assembly 18, accompanies and try bearing bearing block tie-beam 19 and form.Wherein No. 1 longitudinal power transmission pipe is fixed seat 11 fix seat 14 structure with No. 2 longitudinal power transmission pipes identical, Plate Welding form, and lower end is coupled with cast iron T-slot platform 1 by T-bolt, both installation site Parallel Symmetrics.

Refering to Fig. 4, longitudinal power transmission pipe is made up of No. 1 ball pivot shaft stool 20,21, No. 2 ball pivot shaft stools 22 of power transmission pipe with ball pivot shaft stool assembly.Wherein power transmission pipe 21 is welded by steel pipe, pipe end-cap, connection seat.In connecting the connecting hole of seat, ball joint bearing exterior ring cap is installed, in order to coordinate with the ball joint bearing inner ring sleeve of 20, No. 2 ball pivot shaft stools 22 of No. 1 ball pivot shaft stool, realize power transmission pipe 21, freely rotatable around 20, No. 2 ball pivot shaft stool 22 ball hinge shaft axis of No. 1 ball pivot shaft stool.20, No. 2 ball pivot shaft stools 22 of No. 1 ball pivot shaft stool are provided with bolt hole, in order to be connected with other parts.

Refering to Fig. 3, Figure 19, No. 1 longitudinal power transmission pipe is identical with ball pivot shaft stool assembly 15 structure with ball pivot shaft stool assembly 12 and No. 2 longitudinal power transmission pipes, and both axis are coplanar horizontal when static installation site.Wherein No. 1 longitudinal power transmission pipe is fixed seat 11 upper surface be bolted by bolt-connection, the other end and No. 1 square plate accompanying examination bearing bearing block assembly 54 top with ball pivot shaft stool assembly 12 one end and No. 1 longitudinal power transmission pipe, installs effect refering to Fig. 1；No. 2 longitudinal power transmission pipes are fixed seat 14 upper surface with ball pivot shaft stool assembly 15 one end and No. 2 longitudinal power transmission pipes and are bolted by bolt-connection, the other end and No. 2 square plates accompanying examination bearing bearing block assembly 56 top.Motor supporting base 16 is bolted and is arranged on No. 1 longitudinal power transmission pipe and fixes seat 11 and No. 2 longitudinal power transmission pipes are fixed between seat 14.Horizontal machine 13 is arranged on motor supporting base 16 by leveling bolt, and carries out leveling.Horizontal machine 13, the setting height(from bottom) of motor supporting base 16 determine with bearing block general assembly body 10 static height according to test axle assembly.Horizontal machine 13 is connected with belt pulley 77 by driving belt, thus motoring ring test axle rotates.Fixing seat tie-beam 17 is bolted and is arranged on No. 1 longitudinal power transmission pipe and fixes seat 11 and No. 2 longitudinal power transmission pipes are fixed between seat 14.No. 3 longitudinal power transmission pipes are identical with ball pivot shaft stool assembly 15 structure with ball pivot shaft stool assembly 18 and 12, No. 2 longitudinal power transmission pipes of No. 1 longitudinal power transmission pipe and ball pivot shaft stool assembly, its one end is bolted with fixing seat tie-beam 17 upper surface, and the other end is bolted with accompanying examination bearing bearing block tie-beam 19 inner side end.Fixing seat tie-beam 17 is arranged on No. 1 longitudinal power transmission pipe and fixes 11, No. 2 longitudinal power transmission pipes of seat and fix in the middle of seat 14, and fixing seat tie-beam 17 both sides end face and No. 1 longitudinal power transmission pipe are fixed 11, No. 2 longitudinal power transmission pipes of seat and fixed seat 14 inner side end and be bolted.

Refering to Fig. 5, Figure 13, accompany examination bearing bearing block tie-beam 19 to be formed by Plate Welding, be drilled with through hole, in order to be bolted with ball pivot shaft stool assembly 18 with No. 3 longitudinal power transmission pipes.Examination bearing bearing block tie-beam 19 two ends are accompanied to weld together with the vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 in 7, No. 2 vertical exciting load maintainers 8 of No. 1 vertical exciting load maintainer respectively.Accompany examination bearing bearing block tie-beam 19 in order to connect No. 3 longitudinal power transmission pipes and ball pivot shaft stool assembly 18 and 7, No. 2 vertical exciting load maintainers of No. 1 vertical exciting load maintainer.

Refering to Fig. 1 and Fig. 6, No. 1 horizontal exciting load maintainer 3 is identical with No. 2 horizontal exciting load maintainer 4 structures, horizontal actuator fix seat 23,30t radial force cell 24, horizontal actuator force transducer form with ball pivot shaft stool assembly 26, horizontal exciting actuator 27, horizontal exciting actuator bearing 28, horizontal exciting actuator ball pivot shaft stool 29 with ball pivot shaft stool connecting plate 25, pass force crossly pipe.Horizontal actuator is fixed seat 23 and is formed by Plate Welding, is arranged on cast iron T-slot platform 1 by T-bolt.Laterally exciting actuator ball pivot shaft stool 29 is arranged on horizontal actuator by bolt-connection and fixes on seat 23 in plane.Laterally exciting actuator bearing 28 is connected by ball joint bearing with horizontal exciting actuator ball pivot shaft stool 29.Laterally exciting actuator bearing 28 is connected with horizontal exciting actuator 27 afterbody by bolt.Simultaneously laterally exciting actuator 27 lies in horizontal actuator and fixes on seat 23 in plane.Laterally the piston rod end of exciting actuator 27 is threaded, and is attached with the screw thread in 30t radial force cell 24 centre bore by double threaded screw.The exciting that horizontal exciting actuator 27 is loaded by 30t radial force cell 24 1 aspect passes to pass force crossly pipe and ball pivot shaft stool assembly 26 by horizontal actuator force transducer and ball pivot shaft stool connecting plate 25, is finally loaded on test axle assembly and bearing block general assembly body 10.On the other hand, the stressing conditions in exciting loading procedure is gathered.Laterally actuator force transducer and ball pivot shaft stool connecting plate 25 are square plate, and have tapped through hole, screwed hole around one end and 30t radial force cell 24 center connecting hole is bolted, and the other end is bolted with ball pivot shaft stool assembly 26 with pass force crossly pipe.Pass force crossly pipe is attached by the screwed hole of bolt with bearing block pass force crossly frame 52 end face with the other end of ball pivot shaft stool assembly 26.No. 1 horizontal exciting load maintainer 3, No. 2 horizontal exciting load maintainers 4 are symmetrically mounted on test axle assembly and the axial two ends of bearing block general assembly body 10, predominantly test axle assembly provides horizontal exciting with bearing block general assembly body 10, axial impact load in analog orbit train high-speed cruising, wherein 30t radial force cell 24, laterally actuator force transducer and ball pivot shaft stool connecting plate 25, No. 1 pass force crossly pipe and ball pivot shaft stool assembly 26, laterally axis and the test axle assembly of exciting actuator 27 overlaps in static installation site with the axis of bearing block general assembly body 10.In No. 1 horizontal exciting load maintainer 3 and No. 2 horizontal exciting load maintainers 4, the exciting that laterally exciting actuator 27 loads is not applied directly on test axle assembly and bearing block general assembly body 10, but be delivered to test on axle assembly and bearing block general assembly body 10 through pass force crossly pipe and ball pivot shaft stool assembly 26, thus avoid horizontal exciting actuator 27 by the dither loaded from vertical exciting actuator 45, reach guarantee test precision, extend the purpose in actuator service life.

Refering to Fig. 8, blower fan group 5 is made up of fan supporter 31, No. 2 blower fans 32 of 30, No. 1 blower fan.Fan supporter 30 is formed by square tubes soldering, and bottom is fastenedly connected with cast iron T-slot platform 1 by T-bolt.31, No. 2 blower fan 32 shells of No. 1 blower fan have screwed hole, and the screwed hole opened in advance with fan supporter 30 entablature is bolted.31, No. 2 blower fans 32 of No. 1 blower fan are separately mounted to above 53, No. 2 test bearing bearing block assemblies 57 of No. 1 test bearing bearing block assembly, are used for simulating the wind speed in high-speed train actual motion.The wind pipe of 31, No. 2 blower fans 32 of No. 1 blower fan is multi-directional ball pipeline, can adjust direction, air port within the specific limits.

Refering to Fig. 9 to Figure 12, No. 1 test bearing spring lifting mechanism 6 is identical with No. 2 test bearing spring lifting mechanism 9 structures, 33, No. 1 lifting platform fairlead 34 of test bearing bearing block lifting platform base, lifting platform move plate 35, spring base 36, spring 37, No. 2 lifting platform fairleads 38, two-way hydraulic jacks 39 form.Test bearing bearing block lifting platform base 33 is formed by Plate Welding, and bottom is fastenedly connected with cast iron T-slot platform 1 by T-bolt.Top has three circular holes, moves the guide post of plate 35 and two-way hydraulic jack 39 in order to mounting lifting platform.No. 1 lifting platform fairlead 34 is identical with No. 2 lifting platform fairlead 38 structures, by welded and installed on test bearing bearing block lifting platform base 33, and the circular hole coaxial opened in advance with both sides, test bearing bearing block lifting platform base 33 upper end coordinates, forming guiding mechanism, wherein No. 1 lifting platform fairlead 34 is identical with the Circularhole diameter that both sides, test bearing bearing block lifting platform base 33 upper end are opened in advance with No. 2 lifting platform fairlead 38 internal diameters.Two-way hydraulic jack 39 is arranged in the circular hole opened in advance in the middle of test bearing bearing block lifting platform base 33 upper end, and two-way hydraulic jack 39 is after leveling, and its cylinder barrel welds together with test bearing bearing block lifting platform base 33.Test bearing bearing block lifting platform base 33 side is reserved with the oil pipe passage of two-way hydraulic jack 39.Lifting platform moves plate 35 and is welded by steel plate and connecting rod, and steel plate is had through hole and is connected with spring base 36 by bolt, and connecting rod plays guide effect through No. 1 lifting platform fairlead 34 and No. 2 lifting platform fairleads 38.Spring base 36 is welded by steel plate and base, and steel plate has through hole and moves plate 35 by bolt with lifting platform and be connected, spring 37 by welded and installed in base.Spring 37 other end is separately mounted in the spring base hole of No. 1 test bearing bearing block assembly 53 and No. 2 test bearing bearing block assembly 57 bottoms, refering to Figure 21 and Figure 22, wherein the spring base hole of the spring in No. 1 test bearing spring lifting mechanism 6 and No. 1 test bearing bearing block assembly 53 bottom is connected, and spring and the spring base hole of No. 2 test bearing bearing block assembly 57 bottoms in No. 2 test bearing spring lifting mechanisms 9 are connected.No. 1 test bearing spring lifting mechanism 6 and No. 2 test bearing spring lifting mechanisms 9 are respectively symmetrically and are arranged on No. 1 test bearing bearing block assembly 53 and No. 2 test bearing bearing block assembly 57 bottoms, are the vertical supporting mechanisms of test axle assembly and bearing block general assembly body 10.No. 1 test bearing spring lifting mechanism 6 and No. 2 test bearing spring lifting mechanisms 9 realize the simulation loading of dead load by two-way hydraulic jack 39 to test axle assembly and bearing block general assembly body 10, and combine the vertical exciting load maintainer 8 adjustable characteristic of exciting initial position of No. 1 vertical exciting load maintainer 7,2, accurately simulate the dead load that track train actual motion middle (center) bearing is subject to.

Refering to Figure 13 to Figure 18,7, No. 2 vertical exciting load maintainer 8 structures of No. 1 vertical exciting load maintainer are identical, are made up of vertical excitation beam of vibration bearing pin bearing 40, bearing bearing pin 41, cylinder lever connecting rod bearing pin 42,43, No. 1 vertical exciting vertical links 44 of vertical links bearing pin, vertical exciting actuator 45,50t radial force cell 46,47, No. 2 vertical exciting vertical links 48 of actuator crossbeam axle, vertical exciting cylinder lever connecting rod ball pivot shaft stool 49, vertical exciting cylinder lever connecting rod 50, vertical exciting lever crossbeam 51.Vertical excitation beam of vibration bearing pin bearing 40 bottom is connected with cast iron T-slot platform 1 by T-bolt, and top has pin shaft hole, and is connected with bearing bearing pin 41 by expansion sleeve.Bearing bearing pin 41, also cross vertical excitation beam of vibration bearing pin bearing 40 and vertical exciting lever crossbeam 51, is coordinated by the circular hole of bearing with vertical exciting lever crossbeam 51 afterbody.No. 1 vertical exciting vertical links 44 is identical with No. 2 vertical exciting vertical links 48 structures, and two ends have circular hole.One end is coordinated with the circular hole of vertical exciting lever crossbeam 51 front portion by vertical links bearing pin 43.Wherein No. 1 vertical exciting vertical links 44 is connected by expansion sleeve with vertical links bearing pin 43 with the circular hole of both sides, No. 2 vertical exciting vertical links 48 one end, and the circular hole of vertical exciting lever crossbeam 51 front portion is connected by bearing with vertical links bearing pin 43.No. 1 vertical exciting vertical links 44 is attached by the short axle of bearing with actuator crossbeam axle 47 both sides with the other end of No. 2 vertical exciting vertical links 48.Actuator crossbeam axle 47 is connected with 50t radial force cell 46 by bolt, and 50t radial force cell 46 is connected with the piston rod of vertical exciting actuator 45 by double threaded screw.Vertical exciting actuator 45 bottom is connected with cast iron T-slot platform 1 by T-bolt.Vertical exciting cylinder lever connecting rod 50 is link member, and one end, through the square hole on vertical exciting lever crossbeam 51 top, is coordinated with the circular hole of both sides in the middle part of vertical exciting lever crossbeam 51 by cylinder lever connecting rod bearing pin 42.The most vertical exciting lever crossbeam 51 is connected by expansion sleeve with cylinder lever connecting rod bearing pin 42, and cylinder lever connecting rod bearing pin 42 is connected by ball joint bearing with the circular hole of vertical exciting cylinder lever connecting rod 50 lower end.The circular hole of vertical exciting cylinder lever connecting rod 50 upper end is connected with vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 by ball joint bearing.Vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 accompanies examination bearing bearing block assembly 54,2 to accompany the connecting plate of examination bearing bearing block assembly 56 bottom to be attached respectively by bolt with No. 1.Wherein No. 1 vertical exciting load maintainer 7 accompanies examination bearing bearing block assembly 54 to be connected with No. 1, and No. 2 vertical exciting load maintainers 8 accompany examination bearing bearing block assembly 56 to be connected with No. 2.No. 1 vertical exciting load maintainer 7 and No. 2 vertical exciting load maintainers 8 be separately mounted to No. 1 accompany examination bearing bearing block assembly 54 and No. 2 accompany examination bearing bearing block assembly 56 bottom, vertical exciting is provided, exciting between wheel track during analog orbit train high-speed cruising for test axle assembly and bearing block general assembly body 10.In No. 1 vertical exciting load maintainer 7 and No. 2 vertical exciting load maintainers 8, exciting is not loaded directly on test axle assembly and bearing block general assembly body 10 by vertical exciting actuator 45, but be delivered to test on axle assembly and bearing block general assembly body 10 by exciting by a set of lever transmission mechanism, thus avoid vertical exciting actuator 45 by the dither loaded from horizontal exciting actuator 27, thus reach guarantee test precision, extend the purpose in actuator service life.

Refering to Figure 19 to Figure 24, test axle assembly is accompanied examination bearing bearing block assembly 54, test axle assembly 55,2 to accompany examination bearing bearing block assembly 57, No. 2 bearing block pass force crossly framves 58 of 56, No. 2 test bearing bearing block assemblies to form with bearing block general assembly body 10 by 52, No. 1 test bearing bearing block assembly of No. 1 bearing block pass force crossly frame 53,1.No. 1 bearing block pass force crossly frame 52 is identical with No. 2 bearing block pass force crossly frame 58 structures, wherein No. 1 bearing block pass force crossly frame 52 one end is connected by bolt and No. 1 horizontal exciting load maintainer 3, and the other end is connected by bolt and No. 1 test bearing bearing block assembly 53 cycle surface；No. 2 bearing block pass force crossly frame 58 one end are connected by bolt and No. 2 horizontal exciting load maintainers 4, and the other end is connected by bolt and No. 2 test bearing bearing block assembly 57 cycle surfaces.No. 1 test bearing bearing block assembly 53 is identical with No. 2 test bearing bearing block assembly 57 structures, is made up of SMD temperature sensor 59, test bearing bearing block upper body 60, test bearing bearing block lower body 61.SMD temperature sensor 59 is used for measuring inside test bearing bearing block, the operating temperature of test bearing.It is bolted between test bearing bearing block upper body 60, test bearing bearing block lower body 61, the two internal cavity being cast with test bearing shape, test bearing bearing block inner surface fits tightly with test bearing outer ring, and after bolt fastens, cannot move in test bearing bearing block in test bearing outer ring.No. 1 test bearing bearing block assembly 53 and No. 2 test bearing bearing block assembly 57 one end are cast with annular groove, in order to install inside No. 1 test bearing labyrinth oil sealing 84 inside labyrinth oil sealing 71 and No. 2 test bearing.Test bearing bearing block lower body 61 bottom surface has circular groove, in order to install the spring 37 in No. 1 test bearing spring lifting mechanism 6 and No. 2 test bearing spring lifting mechanisms 9.No. 1 accompany examination bearing bearing block assembly 54 accompany with No. 2 examination bearing bearing block assembly 56 structure identical, by SMD temperature sensor 59, accompany examination bearing bearing block upper body 62, accompany try bearing bearing block lower body 63 form.SMD temperature sensor 59 is used for measuring accompanies inside examination bearing bearing block, accompanies the operating temperature of examination bearing.Accompany examination bearing bearing block upper body 62, accompany and try to be bolted between bearing bearing block lower body 63, the two inside is cast with two cavitys accompanying examination bearing configuration, two empty cavity position symmetries, accompany examination bearing bearing block inner surface and fit tightly with accompanying examination bearing outer ring, accompany examination bearing outer ring cannot move in accompanying examination bearing bearing block after bolt fastens.Accompany examination bearing bearing block assembly 54 to accompany examination bearing bearing block assembly 56 two ends to be all cast with annular groove with No. 2 for No. 1, accompany labyrinth oil sealing 73,1 outside examination bearing to accompany labyrinth oil sealing 76,2 inside examination bearing to accompany labyrinth oil sealing 79,2 inside examination bearing to accompany to try labyrinth oil sealing 82 outside bearing in order to installing No. 1 respectively.Accompanying examination top, bearing bearing block upper body 62 is square connecting plate, is drilled with circular hole, is connected with ball pivot shaft stool assembly with longitudinal power transmission pipe by bolt.Accompanying examination bearing bearing block lower body 63 bottom is square connecting plate, is drilled with circular hole, is connected with vertical exciting cylinder lever connecting rod ball pivot shaft stool 49 by bolt.

nullRefering to Figure 25 to Figure 27，Test axle assembly 55 is by No. 1 earth lead hemisphere cover 64、No. 1 transition flange 65、No. 1 brush assembly assembly 66、No. 1 ground connection rotor contact dish 67、No. 1 contact disc installs cushion block 68、No. 1 spindle nose end cap 69、No. 1 test bearing 70、Labyrinth oil sealing 71 inside No. 1 test bearing、No. 1 clamp nut group 72、Accompany labyrinth oil sealing 73 outside examination bearing for No. 1、Examination bearing 74 is accompanied in 1 extra side、Examination bearing 75 is accompanied in No. 1 inner side、Accompany labyrinth oil sealing 76 inside examination bearing for No. 1、Belt pulley 77、Test axle 78、Accompany labyrinth oil sealing 79 inside examination bearing for No. 2、Examination bearing 80 is accompanied in No. 2 inner sides、Examination bearing 81 is accompanied in 2 extra sides、Accompany labyrinth oil sealing 82 outside examination bearing for No. 2、No. 2 clamp nut groups 83、Labyrinth oil sealing 84 inside No. 2 test bearing、No. 2 test bearing 85、No. 2 spindle nose end caps 86、No. 2 contact discs install cushion block 87、No. 2 ground connection rotor contact dishes 88、No. 2 brush assembly assemblies 89、No. 2 transition flange 90、No. 2 earth lead hemisphere covers 91 form.No. 1 earth lead hemisphere cover 64 is identical with No. 2 earth lead hemisphere cover 91 structures, identical with earth lead hemisphere cover structure actually used on CRH3 type EMUs.No. 1 transition flange 65 is identical with No. 2 transition flange 90 structures, identical with transition flange structure actually used on CRH3 type EMUs.Wherein, No. 1 earth lead hemisphere cover 64 is bolted with No. 1 transition flange 65；No. 2 earth lead hemisphere covers 91 are bolted with No. 2 transition flange 90.No. 1 transition flange 65 is bolted with No. 1 test bearing bearing block assembly 53 inner ring end face, and No. 2 transition flange 90 are bolted with No. 2 test bearing bearing block assembly 57 inner ring end faces.No. 1 brush assembly assembly 66 is identical with No. 2 brush assembly assembly 89 structures, identical with brush assembly assembly structure actually used on CRH3 type EMUs.No. 1 brush assembly assembly 66 is arranged on the brushgear housing within No. 1 earth lead hemisphere cover 64 by bolt, and No. 2 brush assembly assemblies 89 are arranged on the brushgear housing within No. 2 earth lead hemisphere covers 91 by bolt.No. 1 ground connection rotor contact dish 67 is identical with No. 2 ground connection rotor contact dish 88 structures, and wherein No. 1 ground connection rotor contact dish 67 is installed cushion block 68 connected by bolt and No. 1 contact disc, and No. 2 ground connection rotor contact dishes 88 are installed cushion block 87 connected by bolt and No. 2 contact discs.No. 1 contact disc installs cushion block 68, and install cushion block 87 structures with No. 2 contact discs identical, and wherein No. 1 contact disc is installed cushion block 68 and connected by bolt and No. 1 spindle nose end cap 69, and No. 2 contact discs are installed cushion blocks 87 and passed through bolt and No. 2 spindle nose end caps 86 connect.No. 1 spindle nose end cap 69 is identical with No. 2 spindle nose end cap 86 structures, is separately mounted to by bolt test on the end face at axle 78 two.Test axle 78 is the ladder axial workpiece of symmetric form, and its feature includes No. 1 test bearing axle 92；No. 1 shaft shoulder 93；No. 1 connects screw thread 94；Accompany examination bearing axle 95 for No. 1；No. 2 shaft shoulders 96；No. 3 shaft shoulders 97；Accompany examination bearing axle 98 for No. 2；No. 2 connect screw thread 99；No. 4 shaft shoulders 100；No. 2 test bearing axles 101.70, No. 2 test bearing 85 structures of No. 1 test bearing are identical, and for test CRH3 axle box bearing, wherein No. 1 test bearing 70 is connected with No. 1 test bearing axle 92 interference fit, is arranged in the cavity of No. 1 test bearing bearing block assembly 53 cast inside；No. 2 test bearing 85 are connected with No. 2 test bearing axle 101 interference fit, are arranged in the cavity of No. 2 test bearing bearing block assembly 57 cast inside.No. 1 test bearing 70 bearing inner race end face outside is in close contact with No. 1 spindle nose end cap 69 interior annular projection, and No. 2 test bearing 85 bearing inner race end face outside are in close contact with No. 2 spindle nose end cap 86 interior annular projections, cannot relative motion between the two after assembling.Inside No. 1 test bearing 70 bearing inner race inner side end and No. 1 test bearing, labyrinth oil sealing 71 exterior annular projection is in close contact, inside No. 2 test bearing 85 bearing inner race inner side ends and No. 2 test bearing, labyrinth oil sealing 84 exterior annular projection is in close contact, cannot relative motion between the two after assembling.Inside No. 1 test bearing, labyrinth oil sealing 71 is identical with labyrinth oil sealing 84 structure inside No. 2 test bearing, wherein inside No. 1 test bearing, labyrinth oil sealing 71 is connected with No. 1 test bearing axle 92 interference fit, being arranged in the annular groove of No. 1 test bearing bearing block assembly 53 medial extremity, inside No. 1 test bearing, labyrinth oil sealing 71 inner side end and No. 1 shaft shoulder 93 are in close contact；Inside No. 2 test bearing, labyrinth oil sealing 84 is connected with No. 2 test bearing axle 101 interference fit, it is arranged in the annular groove of No. 2 test bearing bearing block assembly 57 medial extremitys, inside No. 2 test bearing, labyrinth oil sealing 84 inner side end and No. 4 shaft shoulders 100 are in close contact, cannot relative motion between the two after assembling.No. 1 clamp nut group 72 is identical with No. 2 clamp nut group 83 structures, includes the round nut of two same models respectively, and wherein No. 1 clamp nut group 72 is arranged at No. 1 connection screw thread 94, and No. 2 clamp nut groups 83 are arranged on No. 2 and connect at screw threads 99.Every two, side nut can realize latch functions, when preventing test axle 78 from running up, and nut loosening.After No. 1 clamp nut group 72 and No. 2 clamp nut group 83 assemblings, No. 1 clamp nut group 72 inner side end should accompany labyrinth oil sealing 73 end face outside outside examination bearing to be in close contact with No. 1, No. 2 clamp nut group 83 inner side ends and No. 2 accompany labyrinth oil sealing 82 end face outside outside examination bearing to be in close contact, it is impossible to relative motion.Labyrinth oil sealing 73,2 outside examination bearing is accompanied to accompany labyrinth oil sealing 82,1 outside examination bearing to accompany labyrinth oil sealing 76,2 inside examination bearing to accompany labyrinth oil sealing 79 structure inside examination bearing identical for No. 1, wherein accompany labyrinth oil sealing 73,1 outside examination bearing to accompany labyrinth oil sealing 76 inside examination bearing to accompany with No. 1 examination bearing axle 95 interference fit to be connected for No. 1, be arranged in No. 1 annular groove accompanying examination bearing bearing block assembly 54 two ends；Accompany labyrinth oil sealing 82,2 outside examination bearing to accompany labyrinth oil sealing 79 inside examination bearing to accompany with No. 2 examination bearing axle 98 interference fit to be connected, be arranged in No. 2 annular grooves accompanying examination bearing bearing block assembly 56 two ends for No. 2.Accompany labyrinth oil sealing 76 inner side end and No. 2 shaft shoulders 96 inside examination bearing to be in close contact for No. 1, accompany labyrinth oil sealing 79 inner side end and No. 3 shaft shoulders 98 inside examination bearing to be in close contact for No. 2, cannot relative motion between the two after assembling.1 extra side accompanies examination 74, No. 1 inner side of bearing to accompany examination bearing 75,2 extra side to accompany examination 81, No. 2 inner sides of bearing to accompany examination bearing 80 structure identical, for single-row tapered roller bearing, accompanies examination bearing axle 95,2 to accompany examination bearing axle 98 interference fit to be connected with No. 1.Wherein 1 extra side accompanies examination 74, No. 1 inner side of bearing to accompany examination bearing 75 to accompany examination bearing axle 95 to coordinate with No. 1, is symmetrically mounted in No. 1 symmetrical cavity accompanying examination bearing bearing block assembly 54 cast inside, thus balances the axial load of both sides.2 extra sides accompany examination 81, No. 2 inner sides of bearing to accompany examination bearing 80 to accompany examination bearing axle 98 to coordinate with No. 2, are symmetrically mounted in No. 2 symmetrical cavitys accompanying examination bearing bearing block assembly 56 cast inside, thus balance the axial load of both sides.Belt pulley 77 is assembled with test axle 78 by bonded.The belt pulley 77 axial location on test axle 78 is coplanar with horizontal machine 13 pulley position.

Work process of the present utility model is summarized as follows:

Rail car axle box bearings synthesis performance described in the utility model and axle head grounding device wear test platform are mainly used in testing the property indices of high speed railway car axle box bearing, and test content includes the multiple parameters indexs such as rotating speed, load, temperature, vibration, electric current.Axle head grounding device can also be monitored, test carbon brush and the abrasion condition of frictional disk simultaneously.After on-test, first being applied pressure to test axle assembly with bearing block general assembly body 10 by No. 1 test bearing spring lifting mechanism 6 and No. 2 test bearing spring lifting mechanisms 9, analog orbit vehicle runs the dead load that middle (center) bearing receives.Actuator pistons in No. 1 vertical exciting load maintainer 7 and No. 2 vertical exciting load maintainers 8 moves to relevant position simultaneously, and using this position as the dead-center position of vertical exciting.Blower fan group 5 is run, air outlet alignment test bearing, the windage being subject in analog orbit train actual motion.Horizontal machine 13 starts running, and motoring ring test axle assembly rotates with main shaft in bearing block general assembly body 10.After main shaft reaches test requirements document rotating speed, 3, No. 2 horizontal exciting load maintainers of No. 1 horizontal exciting load maintainer, 7, No. 2 vertical exciting load maintainers 8 of 4, No. 1 vertical exciting load maintainer load exciting according to the track spectrum of test determination is collaborative, realize the dynamic loading loading of test axle assembly and bearing block general assembly body 10 Three Degree Of Freedom, by from track and the dynamic loading of train self in accurate analog orbit train actual motion.Process of the test is arranged on the related sensors such as the mechanics of testing stand each position, temperature, gathers corresponding test parameters, and store in a computer, for quantitative analysis test parameters.After periodic test terminates, testing stand main body is disassembled, bearing service condition and axle head abrasion condition can be observed, finally achieve the research purpose that test is relevant.

Claims

1. rail car axle box bearings synthesis performance and axle head grounding device wear test platform, it is characterised in that:

The longitudinal stability mechanism (2), horizontal exciting load maintainer (3,4), blower fan group (5), test bearing spring lifting mechanism (6,9) and the vertical exciting load maintainer (7,8) that with bearing block general assembly body (10) and are each attached on cast iron T-slot platform (1) by test axle assembly form；

Described test axle assembly is provided with belt pulley (77) with test axle assembly (55) middle part of bearing block general assembly body (10), and test axle assembly (55) is symmetrically installed with the most successively accompanies examination bearing bearing block assembly (54,56), test bearing bearing block assembly (53,57) and bearing block pass force crossly frame (52,58)；

Described horizontal exciting load maintainer (3,4) is coaxially connected with described bearing block pass force crossly frame (52,58) with ball pivot shaft stool assembly (26) by pass force crossly pipe；

With described, described longitudinal stability mechanism (2) accompanies that examination bearing bearing block assembly (54,56) upper surface is fixing to be connected by longitudinal power transmission pipe and ball pivot shaft stool assembly (12,15), in described longitudinal stability mechanism, the horizontal machine of installation passes through belt and is in transmission connection with belt pulley (77)；

Blower fan (31,32) support is installed on described test bearing bearing block assembly (53,57) top by fan supporter (30) by described blower fan group (5)；

Described vertical exciting load maintainer (7,8) is connected with accompanying examination bearing bearing block assembly bottom surface by vertical exciting cylinder lever connecting rod ball pivot shaft stool (49)；

Spring (37) top of described test bearing spring lifting mechanism (6,9) contacts connection with described test bearing bearing block assembly (53,57) bottom surface.

2. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described longitudinal stability mechanism (2) is fixed seat (11,14) by longitudinal power transmission pipe, longitudinal power transmission pipe forms with ball pivot shaft stool assembly (12,15,18) and horizontal machine (13)；

It is two that described longitudinal power transmission pipe fixes seat, is all fixedly mounted on described cast iron T-slot platform (1) bottom it, and two longitudinal power transmission pipes are fixed seat Parallel Symmetric and arranged, and are fixedly connected with fixing seat tie-beam (17) between it；Described longitudinal power transmission pipe and ball pivot shaft stool assembly are three, one end of longitudinal power transmission pipe and ball pivot shaft stool assembly described in two of which is arranged on two described longitudinal power transmission pipes and fixes above seat, the other end accompanies examination bearing bearing block assembly (54 described in being arranged on, 56) upper surface, another described longitudinal power transmission pipe is arranged on described fixing seat tie-beam (17) with one end of ball pivot shaft stool assembly, by accompanying, examination bearing bearing block tie-beam (19) is fixing with vertical exciting cylinder lever connecting rod ball pivot shaft stool (49) of described vertical exciting load maintainer to be connected the other end；

Described horizontal machine (13) is positioned at the top of described fixing seat tie-beam (17), and is arranged on two longitudinal power transmission pipes by motor supporting base (16) and fixes between seat.

3. rail car axle box bearings synthesis performance as claimed in claim 2 and axle head grounding device wear test platform, it is characterised in that:

The ball pivot shaft stool that described longitudinal power transmission pipe is connected by power transmission pipe (21) and its two ends with ball pivot shaft stool assembly (12,15,18) forms；Described power transmission pipe (21) is welded by steel pipe, pipe end-cap, connection seat, in the connecting hole of described connection seat, ball joint bearing exterior ring cap is installed, coordinate with the ball joint bearing inner ring sleeve of ball pivot shaft stool, it is achieved power transmission pipe (21) is freely rotatable around the ball hinge shaft axis of ball pivot shaft stool；Described longitudinal power transmission pipe is connected with other parts by ball pivot shaft stool with ball pivot shaft stool assembly.

4. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described horizontal exciting load maintainer is fixed seat (23) by the horizontal actuator being fixed on cast iron T-slot platform (1) and is sequentially coaxially arranged on horizontal actuator and fixes horizontal exciting actuator ball pivot shaft stool (29) of the upper plane of seat (23), laterally exciting actuator bearing (28), laterally exciting actuator (27), radial force cell (24), laterally actuator force transducer forms with ball pivot shaft stool assembly (26) with ball pivot shaft stool connecting plate (25) and pass force crossly pipe；

Described horizontal exciting actuator (27) lies against horizontal actuator and fixes in the upper plane of seat (23)；The piston rod end of described horizontal exciting actuator (27) is threaded, and is attached with the screw thread in radial force cell (24) centre bore by double threaded screw；

Described pass force crossly pipe and the other end of ball pivot shaft stool assembly (26) are coaxially connected with described bearing block pass force crossly frame by ball pivot shaft stool.

5. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described blower fan group (5) is made up of with two blower fans fan supporter (30), described fan supporter (30) is fixed on cast iron T-slot platform (1), two described blower fans are fixed on the entablature of fan supporter (30), and lay respectively at the top of two described test bearing bearing block assemblies；

6. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described test bearing spring lifting mechanism (6,9), as test axle assembly and the vertical supporting mechanism of bearing block general assembly body (10), is moved plate (35), spring base (36), spring (37) and two-way hydraulic jack (39) formed by test bearing bearing block lifting platform base (33), lifting platform fairlead (34,38), lifting platform；Described test bearing bearing block lifting platform base (33) is fixedly mounted on cast iron T-slot platform (1), and it has three circular holes, and two described lifting platform fairleads are coaxially fixed on the described circular hole of both sides；Described two-way hydraulic jack (39) is arranged in the described circular hole of centre, its cylinder barrel is fixing with test bearing bearing block lifting platform base (33) to be connected, and test bearing bearing block lifting platform base (33) side is reserved with the oil pipe passage of two-way hydraulic jack (39)；

Described spring base (36) is fixed on lifting platform and moves plate (35) upper surface, described lifting platform moves plate (35) bottom surface and is provided with two symmetrical connecting rods, this connecting rod is arranged in described lifting platform fairlead, and described spring (37) bottom is fixed in spring base (36).

7. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described vertical exciting load maintainer (7,8) generally lever-type structure, is made up of vertical excitation beam of vibration bearing pin bearing (40) being fixedly mounted on cast iron T-slot platform (1), vertical exciting lever crossbeam (51), vertical exciting vertical links (44,48), vertical exciting actuator (45), radial force cell (46), vertical exciting cylinder lever connecting rod (50) and vertical exciting cylinder lever connecting rod ball pivot shaft stool (49)；

Described vertical exciting lever crossbeam (51) afterbody is connected with vertical excitation beam of vibration bearing pin bearing (40) by bearing bearing pin (41), and described vertical exciting lever crossbeam (51) front part sides is connected by vertical links bearing pin (43) vertical exciting vertical links (44,48) bottom described with two；

Described vertical exciting actuator (45) is positioned between two described vertical exciting vertical links (44,48), its lower end is fixedly mounted on described cast iron T-slot platform (1), its upper end is connected with radial force cell (46) by double threaded screw, the connection fixed above of described radial force cell (46) has actuator crossbeam axle (47), the short axle of described actuator crossbeam axle (47) both sides to be arranged in the installing hole on two described vertical exciting vertical links (44,48) tops；

Described vertical exciting cylinder lever connecting rod (50) upper end is hinged with vertical exciting cylinder lever connecting rod ball pivot shaft stool (49), the vertical exciting lever crossbeam (51) that described vertical exciting cylinder lever connecting rod (50) lower end is arranged on described vertical exciting vertical links (44,48) rear side is internal, and is connected with vertical exciting lever crossbeam (51) by cylinder lever connecting rod bearing pin (42)；

Described vertical exciting cylinder lever connecting rod ball pivot shaft stool (49) accompanies examination bearing bearing block assembly bottom surface described in being fixedly connected on, and vertical excitation is delivered on described test axle assembly and bearing block general assembly body (10) by described vertical exciting actuator (45) by the lever transmission mechanism being made up of successively radial force cell (46), actuator crossbeam axle (47), vertical exciting vertical links (44,48), vertical exciting lever crossbeam (51) and vertical exciting cylinder lever connecting rod (50)；

Two described vertical exciting vertical links (44,48) are attached by the short axle of bearing with actuator crossbeam axle (47) both sides.

8. rail car axle box bearings synthesis performance as claimed in claim 1 and axle head grounding device wear test platform, it is characterised in that:

Described test axle assembly (55) is by test axle (78), belt pulley (77) and be symmetrically mounted on the most in couples in test axle (78) accompanying labyrinth oil sealing (76 inside examination bearing, 79), examination bearing (75 is accompanied in inner side, 80), examination bearing (74 is accompanied in outside, 81), accompany labyrinth oil sealing (73 outside examination bearing, 82), clamp nut group (72, 83), labyrinth oil sealing (71 inside test bearing, 84), test bearing (70, 85), spindle nose end cap (69, 86), contact disc installs cushion block (68, 87), ground connection rotor contact dish (67, 88), brush assembly assembly (66, 89), transition flange (65, 90) and earth lead hemisphere cover (64, 91) composition.

9. rail car axle box bearings synthesis performance as claimed in claim 8 and axle head grounding device wear test platform, it is characterised in that:

Described bearing block pass force crossly frame (52,58) one end is connected with ball pivot shaft stool assembly (26) with described pass force crossly pipe, and the other end is connected with described test bearing bearing block assembly (53,57) cycle surface；

Test bearing bearing block that described test bearing bearing block assembly (53,57) is made up of test bearing bearing block upper body (60), test bearing bearing block lower body (61) and the SMD temperature sensor (59) being connected on test bearing bearing block form；

Described test bearing bearing block lower body (61) bottom surface has circular groove, and described spring (37) top is placed in one；

Described accompany examination bearing bearing block assembly (54,56) by accompanying examination bearing bearing block upper body (62) and the examination bearing bearing block and being connected to of accompanying accompanying examination bearing bearing block lower body (63) to form to accompany the SMD temperature sensor (59) tried on bearing bearing block to form；

Described accompany examination bearing bearing block upper body (62) end face be that connecting plate is connected with the ball pivot shaft stool of described longitudinal power transmission pipe with ball pivot shaft stool assembly (12,15) one end, accompany try bearing bearing block lower body (63) bottom surface be that connecting plate is connected with described vertical exciting cylinder lever connecting rod ball pivot shaft stool (49).