CN104374574A - Comprehensive performance test bed for super-high-speed train bearing - Google Patents
Comprehensive performance test bed for super-high-speed train bearing Download PDFInfo
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- CN104374574A CN104374574A CN201410654838.2A CN201410654838A CN104374574A CN 104374574 A CN104374574 A CN 104374574A CN 201410654838 A CN201410654838 A CN 201410654838A CN 104374574 A CN104374574 A CN 104374574A
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Abstract
The invention discloses an experimental facility used for testing the performance of a super-high-speed train bearing and relates to a comprehensive performance test bed for the super-high-speed train bearing. According to the test bed, a hydraulic power system is adopted as a power device, a hydraulic motor is adopted as a driving device, and hydraulic cylinders are adopted as loading devices. The comprehensive performance test bed comprises a main test bed, an environment simulation system, an electrical control system and a monitoring system. The main test bed is composed of the power device, the driving device, a movement device, the loading devices, a rack and a ventilation device. The environment simulation system is composed of a wind speed simulation system, a spraying system and a temperature simulation system. The electrical control system is used for distributing power to the main test bed and the environment simulation system and performing driving control. The monitoring system collects a temperature signal, a rotating speed signal, a vibration signal, a pressure signal and other signals of the tested bearing and achieves performance assessment on the tested bearing. The test bed can perform static and dynamic testing on an axle box bearing of a super-high-speed train at the speed of over 500 kilometers per hour, and has the advantages of being compact in structure, easy to operate and the like, the bearing is convenient to disassemble and assemble, and loads are adjustable.
Description
Technical field
The present invention relates to a kind of experimental provision for test bearing performance, relating to a kind of testing table for testing superexpress train bearings synthesis performance particularly.
Background technology
Superexpress train refers to the train of speed per hour more than 500 kilometers.In recent years, China Express Railway obtained develop rapidly, had grasped superexpress train technology.It is reported, the test speed of the overspeed test train of CSR, Qingdao Sifang Railway Co., Ltd in 2014 reaches 605km/h.
Axle box bearing is the important component part of rail vehicle traveling supporting portion, is one of parts the most easily broken down.At present, bullet train axle box bearing does not also realize production domesticization, and speed per hour all needs import higher than the high-speed railway bearing of 160 kilometers.The production domesticization of high ferro bearing is the inexorable trend of High Speed Train in China development.In recent years, through the effort of domestic bearing industry, make important progress in the design and manufaction of high ferro bearing, developed speed per hour 300 kilometer motor vehicle group wheel to axle box bearing sample.But, owing to lacking high ferro bearing test equipment, enough bearing performance test figures can not be provided, the application requirement of high ferro bearing cannot be met.In order to the actual bad working environments of high ferro bearing in maximal work situation can be simulated, detect performance under specific operation of high ferro bearing and life-span, concrete assessment is made to high ferro bearing, is badly in need of a set of detection and testing equipment.
Ballastless track bearing test-bed is not only expensive, and gordian technique is maintained secrecy.For realizing the production domesticization of high-speed railway bearing, breaking the technical monopoly of overseas enterprise, in the urgent need to development high-speed railway bearing test-bed, bearing properties being tested and verifies.
Summary of the invention
The object of this invention is to provide a kind of superexpress train bearings synthesis performance test stand can simulating superexpress train bearing actual condition, for the performance test to speed per hour more than 500 kilometers superexpress train bearings.
In order to achieve the above object: be achieved through the following technical solutions:
Superexpress train bearings synthesis performance test stand, it is characterized in that: this testing table adopt hydraulic power system as propulsion system, oil motor as drive unit, hydraulic cylinder as charger, this testing table comprises Master Test Station, environmental simulation system, electric control system and monitoring system four module;
Described Master Test Station, comprise: propulsion system, drive unit, telecontrol equipment, charger, stand and ventilation unit, adopt hydraulic power system as propulsion system for drive unit and charger provide power, oil motor is adopted to move as drive unit actuation movement device, telecontrol equipment is by main shaft, spring bearing, tested bearing and lubricating system composition, hydraulic loaded mode is adopted to carry out radial static load loading, radial dynamic load and axial dynamic load, ventilation unit provides ventilation for telecontrol equipment, stand is propulsion system, drive unit, telecontrol equipment, charger and ventilation unit provide support,
The environmental simulation system of described testing table, comprises wind speed simulation system, spray system and temperature simulation system;
The electric control system of described testing table, for the propulsion system of Master Test Station, drive unit, telecontrol equipment, charger, ventilation unit and environmental simulation system distributed power row cutting of going forward side by side controls, make these devices and system coordination work, coordinate different experiment works;
The monitoring system of described testing table, gathers the signal such as temperature, rotating speed, vibration, pressure of tested bearing, and carries out Treatment Analysis by the signal that modern signal processing method realizes gathering, and realizes the Performance Evaluation to tested bearing.
Beneficial effect
The present invention be directed to the superexpress train bearings synthesis performance test stand of speed per hour more than 500 kilometers, static test and the dynamic test of superexpress train axle box bearing can be carried out, comprise dust-proof test, the test of leakproof fat, water spray test, performance test, fatigue life test etc.
Superexpress train bearings synthesis performance test stand of the present invention, can complete maximum (top) speed 6000r/min, test wind speed is 0-50m/s, and axial maximum load load is 200kN, radial maximum load static load is 360kN, and radial maximum load dynamic load is the simulation test of 360kN.If calculate to take turns right diameter 860mm, the superexpress train bearing that speed per hour is 972 kilometers can be tested.
Superexpress train bearings synthesis performance test stand of the present invention, adopt Hydrauservo System, carry out closed-loop control, carry out by signals such as the temperature to tested bearing, rotating speed, vibration, pressure the state that combined monitoring judges bearing, there is the features such as compact conformation, assembling bearing is convenient, simple to operate, adjust and increase convenient, loaded load size is adjustable.
Accompanying drawing explanation
Fig. 1 is testing table of the present invention composition schematic diagram;
Fig. 2 is the structural representation of Master Test Station of the present invention.
In Fig. 2,1-propulsion system, 2-drive unit, 3,4,5-charger, 6-telecontrol equipment, 7-tested bearing, 8-stand, 9-ventilation unit.
Embodiment
In order to better objects and advantages of the present invention are described, below in conjunction with drawings and Examples, the present invention is described in further detail.
See Fig. 1, a kind of superexpress train bearings synthesis performance test stand, this testing table comprises Master Test Station, environmental simulation system, electric control system and monitoring system four module.
Master Test Station comprises: propulsion system, drive unit, telecontrol equipment, charger, stand and ventilation unit.Adopt hydraulic power system as propulsion system for drive unit and charger provide power, oil motor is adopted to move as drive unit actuation movement device, telecontrol equipment is made up of main shaft, spring bearing, tested bearing and lubricating system, hydraulic loading device is adopted to carry out radial static load loading, radial dynamic load and axial dynamic load, ventilation unit provides ventilation for telecontrol equipment, and stand is that propulsion system, drive unit, telecontrol equipment, charger and ventilation unit provide support.
The environmental simulation system of described testing table, comprises wind speed simulation system, spray system and temperature simulation system;
The electric control system of testing table, PLC and computer technology is adopted to design, for the propulsion system of Master Test Station, drive unit, telecontrol equipment, charger, ventilation unit and environmental simulation system distributed power row cutting of going forward side by side controls, make these devices and system coordination work, realize the rotating speed to main shaft, rotating and the size of load and the accurate control to loading curve, coordinate different experiment works;
Because single temperature monitoring can not meet the demands, the monitoring system of testing table is by carrying out to signals such as temperature, rotating speed, vibration, pressure the state that combined monitoring judges bearing.Monitoring system comprises hardware and software, hardware comprises temperature, rotating speed, vibration, pressure signal sensor and signal conditioning circuit, and the composition such as computing machine, software function module comprises time domain, frequency domain and the Time-Frequency Analysis methods such as orbit of shaft center, Envelope Analysis, statistical study, correlation analysis, cepstral analysis, spectrum analysis, Short Time Fourier Transform (STFT), wavelet transformation, empirical mode decomposition (EMD).Carrying out Treatment Analysis by the signal realized gathering by modern signal processing method, realizing the Performance Evaluation to tested bearing.
This testing table can carry out static test, also can carry out dynamic test to it bearing.For dynamic test, load radial force by hydraulic cylinder according to real load spectrum, simulate the exciting force that the inequality that is subject to track in train driving process is brought.
Radial static load loads and the action direction of radial dynamic load selects vertical in major axes orientation, adopts hydraulic loaded mode to load radial force according to real load spectrum; Axial dynamic load is selected along major axes orientation, adopts hydraulic loaded mode to load axial force according to real load spectrum.
This testing table can complete multiple test, comprises dust-proof test, water spray test, performance test, fatigue life test etc.
See Fig. 2, a kind of structural representation of Master Test Station of superexpress train bearings synthesis performance test stand, this Master Test Station comprises: propulsion system 1, drive unit 2, charger 3 ~ 5, telecontrol equipment 6, tested bearing 7, stand 8 and ventilation unit 9.
It is that drive unit 2 and charger 3 ~ 5 provide power that propulsion system 1 have employed hydraulic power system, comprises hydraulic pump, hydraulic valve, conduit under fluid pressure, fuel tank.Described hydraulic valve comprises: surplus valve, reversal valve, reduction valve, hydraulic lock, flow speed control valve, electro-hydraulic proportional valve, servo-valve, sequence valve, throttling valve etc.By hydraulic pump to loading hydraulic cylinder fuel feeding, make axial loading device and radial loading device be respectively tested bearing and apply axial force and radial force, and then the performance of bearing and reliability are tested.Hydraulic power system working pressure designed in Fig. 2 is 200bar.
The core component of drive unit 2 is oil motors, and actuation movement device 6 moves.In Fig. 2, the amount rotating speed of oil motor is 4500r/min, if calculate to take turns right diameter 860mm, can test the superexpress train bearing that speed per hour is 729 kilometers.
Telecontrol equipment 6 is made up of main shaft, spring bearing, tested bearing 7 and lubricating system, tested bearing 7 is arranged on one end of main shaft, the bearing holder (housing, cover) having different size is adopted in the position of main shaft installation testing bearing, to meet the test request for different inner diameters dimensioned bearings, simplify the cargo handling process of bearing.
Charger 3 ~ 5 adopts hydraulic loaded mode to load, and its core component is the hydraulic cylinder with refrigerating function.This charger comprises radial static load charger 4 and dynamic apparatus, and dynamic loading device comprises axial dynamic loading device 3 and radial dynamic loading device 5, and the radial force set by loading mode setting and axial load load tested bearing 7.Hydraulic loading system designed in Fig. 2, axial maximum load load is 200kN, and radial maximum load static load is 360kN, and radial maximum load dynamic load is 360kN.The size of loaded load can adjust according to the size of loading spectrum.
Ventilation unit 9 provides ventilation for telecontrol equipment 6, and then provides refrigerating function for telecontrol equipment 6.
Stand 8 is the propulsion system 1 of Master Test Station, drive unit 2, telecontrol equipment 6, charger 3 ~ 5 and ventilation unit 9 provide support.
Above-described specific descriptions; the object of inventing, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. superexpress train bearings synthesis performance test stand, it is characterized in that: this testing table adopt hydraulic power system as propulsion system, oil motor as drive unit, hydraulic cylinder as charger, this testing table is made up of Master Test Station, environmental simulation system, electric control system and monitoring system
Described Master Test Station, comprise: propulsion system, drive unit, telecontrol equipment, charger, stand and ventilation unit, adopt hydraulic power system as propulsion system for drive unit and charger provide power, oil motor is adopted to move as drive unit actuation movement device, telecontrol equipment is by main shaft, spring bearing, tested bearing and lubricating system composition, hydraulic loaded mode is adopted to carry out radial static load loading, radial dynamic load and axial dynamic load, ventilation unit provides ventilation for telecontrol equipment, stand is propulsion system, drive unit, telecontrol equipment, charger and ventilation unit provide support,
The environmental simulation system of described testing table, comprises wind speed simulation system, spray system and temperature simulation system;
The electric control system of described testing table, for the propulsion system of Master Test Station, drive unit, telecontrol equipment, charger, ventilation unit and environmental simulation system distributed power row cutting of going forward side by side controls, make these devices and system coordination work, coordinate different experiment works;
The monitoring system of described testing table, gathers the signal such as temperature, rotating speed, vibration, pressure of tested bearing, and carries out Treatment Analysis by the signal that modern signal processing method realizes gathering, and realizes the Performance Evaluation to tested bearing.
2. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: speed per hour can be carried out more than the static test of 500 kilometers of superexpress train axle box bearings and dynamic test, comprise dust-proof test, the test of leakproof fat, water spray test, performance test, fatigue life test etc.
3. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: maximum (top) speed 6000r/min can be completed, test wind speed is 0-50m/s, axial maximum load load is 200kN, radial maximum load static load is 360kN, and radial maximum load dynamic load is the simulation test of 360kN.
4. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: this testing table can carry out static test, also can carry out dynamic test to it bearing, for dynamic test, load radial force by hydraulic cylinder according to real load spectrum, simulate the exciting force that the inequality that is subject to track in train driving process is brought.
5. superexpress train bearings synthesis performance test stand according to claim 1, is characterized in that:
Described radial static load loads and the action direction of radial dynamic load selects vertical in major axes orientation, adopts hydraulic loaded mode to load radial force according to real load spectrum; Described axial dynamic load is selected along major axes orientation, adopts hydraulic loaded mode to load axial force according to real load spectrum.
6. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: described electric control system, adopt PLC and computer technology to design, the rotating speed to main shaft, rotating and the size of load and the accurate control to loading curve can be realized.
7. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: described tested bearing is arranged on one end of main shaft, the bearing holder (housing, cover) having different size is adopted in the position of main shaft installation testing bearing, to meet the test request for different inner diameters dimensioned bearings, simplify the cargo handling process of bearing.
8. superexpress train bearings synthesis performance test stand according to claim 1, it is characterized in that: described monitoring system, comprise hardware and software, hardware is by temperature, rotating speed, vibration signal sensor and signal conditioning circuit, and computing machine composition, software function module comprises time domain, frequency domain and Time-Frequency Analysis method, has orbit of shaft center, Envelope Analysis, statistical study, correlation analysis, cepstral analysis, spectrum analysis, Short Time Fourier Transform (STFT), wavelet transformation, empirical mode decomposition (EMD).
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Cited By (9)
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| CN104964825A (en) * | 2015-07-02 | 2015-10-07 | 孙连贵 | Vibration measuring instrument for super-large or super-heavy bearing |
| CN105021400A (en) * | 2015-07-07 | 2015-11-04 | 武汉理工大学 | Intermediate bearing with hydraulic loading device used for ship cardan shaft system test stand |
| CN106092576A (en) * | 2016-06-20 | 2016-11-09 | 苏州东菱科技有限公司 | Multifunction bearing pilot system |
| CN106546436A (en) * | 2016-10-19 | 2017-03-29 | 华南理工大学 | A kind of auto parts and components loading spectrum is effectively compressed method |
| CN108335562A (en) * | 2017-01-20 | 2018-07-27 | 长沙海商网络技术有限公司 | A kind of train simulation driving experience system based on height emulation |
| CN108731954A (en) * | 2018-06-04 | 2018-11-02 | 东北大学 | A kind of bullet train axle fretting fatigue testing platform and application method |
| CN111220384A (en) * | 2020-03-12 | 2020-06-02 | 大连智德科技有限公司 | Vertical telescopic type double-row tapered roller bearing axial loading system |
| CN112857828A (en) * | 2021-01-14 | 2021-05-28 | 北京理工大学 | Dual-independent vehicle transmission measurement and control system |
| CN116718370A (en) * | 2023-08-07 | 2023-09-08 | 山东济铁机务装备集团有限公司 | High-speed railway locomotive axle gear box performance detection system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104964825A (en) * | 2015-07-02 | 2015-10-07 | 孙连贵 | Vibration measuring instrument for super-large or super-heavy bearing |
| CN104964825B (en) * | 2015-07-02 | 2017-06-13 | 文海 | Especially big or extra-heavy duty type bearing vibration measuring instrument |
| CN105021400A (en) * | 2015-07-07 | 2015-11-04 | 武汉理工大学 | Intermediate bearing with hydraulic loading device used for ship cardan shaft system test stand |
| CN105021400B (en) * | 2015-07-07 | 2018-03-16 | 武汉理工大学 | The intermediate bearing with hydraulic loading device system test-bed for ship propulsive shafting |
| CN106092576A (en) * | 2016-06-20 | 2016-11-09 | 苏州东菱科技有限公司 | Multifunction bearing pilot system |
| CN106546436A (en) * | 2016-10-19 | 2017-03-29 | 华南理工大学 | A kind of auto parts and components loading spectrum is effectively compressed method |
| CN108335562A (en) * | 2017-01-20 | 2018-07-27 | 长沙海商网络技术有限公司 | A kind of train simulation driving experience system based on height emulation |
| CN108731954A (en) * | 2018-06-04 | 2018-11-02 | 东北大学 | A kind of bullet train axle fretting fatigue testing platform and application method |
| CN111220384A (en) * | 2020-03-12 | 2020-06-02 | 大连智德科技有限公司 | Vertical telescopic type double-row tapered roller bearing axial loading system |
| CN111220384B (en) * | 2020-03-12 | 2021-07-23 | 大连智德科技有限公司 | Vertical telescopic type double-row tapered roller bearing axial loading system |
| CN112857828A (en) * | 2021-01-14 | 2021-05-28 | 北京理工大学 | Dual-independent vehicle transmission measurement and control system |
| CN116718370A (en) * | 2023-08-07 | 2023-09-08 | 山东济铁机务装备集团有限公司 | High-speed railway locomotive axle gear box performance detection system |
| CN116718370B (en) * | 2023-08-07 | 2023-11-10 | 山东济铁机务装备集团有限公司 | High-speed railway locomotive axle gear box performance detection system |
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