CN203069366U - High and low temperature fatigue test bench for railway-vehicle wheel shaft - Google Patents
High and low temperature fatigue test bench for railway-vehicle wheel shaft Download PDFInfo
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- CN203069366U CN203069366U CN 201320010720 CN201320010720U CN203069366U CN 203069366 U CN203069366 U CN 203069366U CN 201320010720 CN201320010720 CN 201320010720 CN 201320010720 U CN201320010720 U CN 201320010720U CN 203069366 U CN203069366 U CN 203069366U
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- wheel
- low temperature
- transmission shaft
- axletree
- fatigue test
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Abstract
The utility model discloses a high and low temperature fatigue test bench for a railway-vehicle wheel shaft. The high and low temperature fatigue test bench comprises a motor arranged on an operation platform and a horizontal transmission shaft driven by the motor, wherein the transmission shaft is connected with an axle. The other end of the axle is connected with a vertical hydraulic actuator mounted on the operation platform The fatigue test bench is characterized in that a connection mode of the transmission shaft and the axle is that the transmission shaft is connected with a wheel clamp, the wheel clamp is used for clamping wheels, the wheels and the axle are in interference fit and a temperature control box completely encloses the wheels, the axle and the wheel clamp. The test bench can simulate fatigue strength tests of the wheel shafts of different rail gauges and wheel diameters in different temperature environments under different load operation conditions. Test cost is low, test efficiency is high, test results are relatively true and reliable, the high and low temperature fatigue test bench truly simulates actual condition situations of various lines and realizes research of a wheel-shaft high and low temperature fatigue mechanism.
Description
Technical field
The utility model relates to a kind of wheel and the fatigue test board of axletree under the high and low temperature environment of rail truck.
Background technology
Transportation by railroad is to the development of high-speed overload, make the vibration aggravation of train operation, the Service Environment of each parts worsens, and the structural strength problem that is exposed to bogie, wheel shaft and car body etc. increases gradually, particularly after the desired light in structure of bullet train quantizes, the structural strength problem will be more outstanding.Traditional Research for Structural Strength comprises static strength research and Fatigue Life Research, and no matter its theoretical analysis or experimental study has been difficult to rationally reproduce the dynamic Service Environment of rolling stock critical piece.To comprise that car body, hook are slow, the rolling stock of framework, axle box, wheel equity parts, carry out more detailed structural fatigue pilot system construction, be imminent.
So far, the test method that adopts of the high low temperature Fatigue Test Research of rail vehicles wheel shaft mainly contains:
One, actual vehicle is tested at specific actual track, though this test method can be carried out the high low temperature wheel shaft Fatigue Test Research of true car solid line, but has a lot of drawbacks, mainly contain: a lot of dynamic parameters can't accurately be measured in the test, and wheel shaft and test parameters can not regulated at will or changes, can not carry out the research of the extreme operating condition of vehicle axles strength test, influence the normal operation of circuit, test period is extremely long, and experimentation cost costliness, cost are too high.
Two, shop experiment research is divided into again:
The high low temperature strength test of the rolling stock wheel shaft torture test of normal temperature and wheel shaft.
Rolling stock wheel shaft torture test under the normal temperature state only can be tested wheel shaft fatigue properties under the general indoor temperature, and rolling stock operates in the various environment in the actual track, external condition is different fully, and the fatigue of materials characteristic is also different fully, and its life-span also is not quite similar.Therefore, be difficult to estimate from the test findings of normal temperature wheel shaft fatigue test board with general similarity relation the characteristic of wheel shaft fatigue under the high and low temperature state.
The high low temperature Strength Testing Methods of wheel shaft is that wheel shaft is fixed within the Cryo Equipment, applies the distortion of certain load measurement wheel shaft.Test when this method only can be simulated wheel shaft static state can not be simulated the situation under the true rotation status, though reached the requirement of high low temperature, significant limitation is arranged, thereby can't reflect actual situation.
Therefore above-mentioned wheel shaft test method and device exist tangible deficiency and shortcoming to the research of the wheel shaft mechanism of fatigue.By the suitable method of utility model, realize the mechanism of fatigue experimental study of bogie wheel shaft under high and low temperature environment, to become the important foundation of high-speed heavy-load trains safe operation problem in science research, also will set up good test platform for the fatigue study of high low temperature wheel shaft, be of great significance to guaranteeing high speed, heavy haul railway safe operation etc.
The utility model content
The purpose of this utility model provides the high low temperature fatigue test board of a kind of rail truck wheel shaft.This testing table can not only realize that the wheel shaft Fatigue Test Research under the normal temperature state can carry out simultaneously the wheel shaft Fatigue Test Research under the high and low temperature environment.This testing table can be at various gauges, and the wheel shaft of various rail trucks is tested, and can regulate environment temperature in the test and load condition comes simulating actual conditions.And can carry out the long time period loading, the test period is short, and cost is low, the efficient height; Thereby for the research of the rail truck wheel shaft high and low temperature mechanism of fatigue provides more authentic and valid test figure, be of great significance to guaranteeing high speed, heavy haul railway safe operation etc.
The utility model is realized its goal of the invention, the technical scheme that adopts is: the high low temperature fatigue test board of a kind of rail truck wheel shaft, comprise the motor on the workbench, the transmission shaft of motor-driven level, transmission shaft links to each other with axletree, and the axletree other end links to each other with vertical hydraulic actuator on the workbench; It is characterized in that: the connected mode of described transmission shaft and axletree is that transmission shaft links to each other with fixture wheel, fixture wheel clamping wheel, wheel and axletree interference fit; And there is temperature-controlled cabinet that wheel and axletree and fixture wheel are surrounded fully.
The course of work of the present utility model and principle are:
The starting characteristics test platform, make the interior temperature of temperature-controlled cabinet reach the claimed condition of test, motor-driven transmission shaft rotation simultaneously, thereby making fixture wheel be rotated to drive tested wheel shaft (wheel, axletree) rotates together, load by one section long power that circulates of hydraulic actuator at axletree, and the load on the wheel shaft and distortion carried out follow-on test, record, thereby finish the high and low temperature torture test of wheel shaft.
Compared with prior art, the beneficial effects of the utility model are:
One, can wheel shaft ambient temperature that is virtually reality like reality be INFLUENCE ON FATIGUE STRENGTH in the test, study at real wheel, axletree simultaneously, can provide more authentic and valid test figure for the research of the wheel shaft mechanism of fatigue.
Temperature environment is controlled when two, testing, and can carry out the research under the varying environment state.To guaranteeing that high speed, heavy haul railway safe operation are of great significance.
Three, than true car test, the utility model does not influence the normal operation of train, and test is convenient, the cycle is short, cost is low, is convenient to implement.
Four, test can be at various different gauges, and the wheel in different wheels footpath carries out, and is applied widely.
The concrete formation of above-mentioned fixture wheel is: the one side of disk is fixedlyed connected with transmission shaft, a plurality of connected nails are threaded on the another side of disk, the groove fit of the end side face of the inner ring of fastening ring plate and connected nail, the wheel rim of wheel places between fastening ring plate and the disk.
Such fixture wheel can be easily to various different gauges, and the wheels in different wheels footpath are fixed, and it is little to take up room simultaneously, can with the rotation of wheel one superhigh speed.
Above-mentioned temperature-controlled cabinet is that compressor heats/the refrigeration mode temperature-controlled cabinet.
Such temperature-controlled cabinet both can carry out also can heating environment in the case environment refrigeration in the case, had utilized testing table to greatest extent, had saved test space and fund.
The concrete mode that the above-mentioned axletree other end is connected with hydraulic actuator is: the axletree other end links to each other with bearing cavity in the axle box, and the bottom of axle box is connected with hydraulic actuator.
Such axletree other end with hydraulic actuator connected mode real simulated actual axletree be connected and stressing conditions with axle box, make test findings more true and reliable.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
The main TV structure synoptic diagram of Fig. 1 the utility model embodiment.
The structure for amplifying synoptic diagram of the fixture wheel (from axial direction) among Fig. 2 the utility model embodiment.
Embodiment
Embodiment
Fig. 1 illustrates: a kind of embodiment of the present utility model is: the high low temperature fatigue test board of a kind of rail truck wheel shaft, comprise the motor 8 on the workbench 1, the transmission shaft 7 of the level that motor 8 drives, transmission shaft 7 links to each other with axletree 5b, and the axletree 5b other end links to each other with vertical hydraulic actuator 2 on the workbench 1.Described transmission shaft 7 is that transmission shaft 7 links to each other with fixture wheel 6, fixture wheel 6 clamping wheel 5a, wheel 5a and axletree 5b interference fit with the connected mode of axletree 5b; And there is temperature-controlled cabinet 4 that wheel 5a and axletree 5b and fixture wheel 6 are surrounded fully.
Fig. 2 illustrates: the concrete formation of this routine fixture wheel 6 is: the one side of disk 6a is fixedlyed connected with transmission shaft 7, a plurality of connected nail 6e are threaded on the another side of disk 6a, the groove of the end side face of the inner ring of fastening ring plate 6b and connected nail 6e closes, and the wheel rim of wheel 5a places between fastening ring plate 6b and the disk 6a.
Fig. 1 illustrates, and this routine temperature-controlled cabinet 4 heats/the refrigeration mode temperature-controlled cabinet for compressor.
Fig. 1 also illustrates, and the concrete mode that this routine axletree 5b other end is connected with hydraulic actuator is: the bearing cavity in the axletree 5b other end and the axle box 3 links to each other, and the bottom of axle box 3 is connected with hydraulic actuator 2.
Claims (4)
1. high low temperature fatigue test board of rail truck wheel shaft, comprise the motor (8) on the workbench (1), the transmission shaft (7) of the level that motor (8) drives, transmission shaft (7) links to each other with axletree (5b), and axletree (5b) other end links to each other with vertical hydraulic actuator (2) on the workbench (1); It is characterized in that: described transmission shaft (7) is that transmission shaft (7) links to each other with fixture wheel (6), fixture wheel (6) clamping wheel (5a), wheel (5a) and axletree (5b) interference fit with the connected mode of axletree (5b); And there is temperature-controlled cabinet (4) that wheel (5a) and axletree (5b) and fixture wheel (6) are surrounded fully.
2. the high low temperature fatigue test board of a kind of rail truck wheel shaft according to claim 1, it is characterized in that: the concrete formation of described fixture wheel (6) is: the one side of disk (6a) is fixedlyed connected with transmission shaft (7), a plurality of connected nails (6e) are threaded on the another side of disk (6a), the groove fit of the end side face of the inner ring of fastening ring plate (6b) and connected nail (6e), the wheel rim of wheel (5a) place between fastening ring plate (6b) and the disk (6a).
3. the high low temperature fatigue test board of a kind of rail truck wheel shaft according to claim 1, it is characterized in that: described temperature-controlled cabinet (4) heats/the refrigeration mode temperature-controlled cabinet for compressor.
4. the high low temperature fatigue test board of a kind of rail truck wheel shaft according to claim 1, it is characterized in that: described axletree (5b) other end with the concrete mode that hydraulic actuator (2) is connected is: the bearing cavity in axletree (5b) other end and the axle box (3) links to each other, and the bottom of axle box (3) is connected with hydraulic actuator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010720 CN203069366U (en) | 2013-01-09 | 2013-01-09 | High and low temperature fatigue test bench for railway-vehicle wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010720 CN203069366U (en) | 2013-01-09 | 2013-01-09 | High and low temperature fatigue test bench for railway-vehicle wheel shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069366U true CN203069366U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010720 Expired - Fee Related CN203069366U (en) | 2013-01-09 | 2013-01-09 | High and low temperature fatigue test bench for railway-vehicle wheel shaft |
Country Status (1)
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| CN (1) | CN203069366U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630342A (en) * | 2013-09-24 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Running-in test device for built-in axle boxes of rail vehicle |
| CN105806617A (en) * | 2016-04-26 | 2016-07-27 | 吉林大学 | Fatigue test table for wheel axles of high speed train |
| CN107084890A (en) * | 2017-05-11 | 2017-08-22 | 株洲时代新材料科技股份有限公司 | A kind of rail traffic vehicles anti-side rolling torsion rod thermocycling method and apparatus |
| CN109100163A (en) * | 2018-09-11 | 2018-12-28 | 西南交通大学 | A kind of configuration in railroad truck dynamic debugging testing stand |
| CN110304103A (en) * | 2019-07-10 | 2019-10-08 | 上海应用技术大学 | Wheel temperature-rise test device and method caused by train Wheel Rail Contact |
| CN110849756A (en) * | 2019-11-18 | 2020-02-28 | 华东交通大学 | High/low temperature integrated test device with controllable environmental temperature |
| CN112014103A (en) * | 2020-07-29 | 2020-12-01 | 武汉理工大学 | Shafting test device suitable for ice region navigation boats and ships |
| CN114577628A (en) * | 2022-02-21 | 2022-06-03 | 中信戴卡股份有限公司 | Magnesium alloy wheel high-temperature bending fatigue test equipment |
-
2013
- 2013-01-09 CN CN 201320010720 patent/CN203069366U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630342A (en) * | 2013-09-24 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Running-in test device for built-in axle boxes of rail vehicle |
| CN103630342B (en) * | 2013-09-24 | 2016-08-17 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle built-in axle running test device |
| CN105806617A (en) * | 2016-04-26 | 2016-07-27 | 吉林大学 | Fatigue test table for wheel axles of high speed train |
| CN107084890A (en) * | 2017-05-11 | 2017-08-22 | 株洲时代新材料科技股份有限公司 | A kind of rail traffic vehicles anti-side rolling torsion rod thermocycling method and apparatus |
| CN107084890B (en) * | 2017-05-11 | 2020-04-10 | 株洲时代新材料科技股份有限公司 | High-low temperature test method and device for anti-side rolling torsion bar of rail transit vehicle |
| CN109100163A (en) * | 2018-09-11 | 2018-12-28 | 西南交通大学 | A kind of configuration in railroad truck dynamic debugging testing stand |
| CN110304103A (en) * | 2019-07-10 | 2019-10-08 | 上海应用技术大学 | Wheel temperature-rise test device and method caused by train Wheel Rail Contact |
| CN110849756A (en) * | 2019-11-18 | 2020-02-28 | 华东交通大学 | High/low temperature integrated test device with controllable environmental temperature |
| CN112014103A (en) * | 2020-07-29 | 2020-12-01 | 武汉理工大学 | Shafting test device suitable for ice region navigation boats and ships |
| CN114577628A (en) * | 2022-02-21 | 2022-06-03 | 中信戴卡股份有限公司 | Magnesium alloy wheel high-temperature bending fatigue test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20220109 |