CN202382948U - Wheel axle fatigue tester - Google Patents
Wheel axle fatigue tester Download PDFInfo
- Publication number
- CN202382948U CN202382948U CN2011205373984U CN201120537398U CN202382948U CN 202382948 U CN202382948 U CN 202382948U CN 2011205373984 U CN2011205373984 U CN 2011205373984U CN 201120537398 U CN201120537398 U CN 201120537398U CN 202382948 U CN202382948 U CN 202382948U
- Authority
- CN
- China
- Prior art keywords
- actuating cylinder
- wheel axle
- journal
- axle
- fatigue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009661 fatigue test Methods 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000010998 test method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a wheel axle fatigue tester, which is capable of comprehensively establishing a journal rotating bending and axial loading test mode by aiming at a solution to implementing fatigue tests and axial loading on journals, so that comprehensiveness of the fatigue tests on wheel axle integrality is improved. The wheel axle fatigue tester comprises a loading beam and a platform, a wheel is radially fixed onto the platform, the end of a to-be-tested wheel axle is axially fixed onto the platform, a vertical actuating cylinder, a transverse actuating cylinder and a longitudinal actuating cylinder are respectively connected to a journal of the to-be-tested wheel axle, the journal of the to-be-tested wheel axle is mounted inside a mounting seat by means of a rolling bearing, and the vertical actuating cylinder, the transverse actuating cylinder and the longitudinal actuating cylinder are respectively connected to the mounting seat. The fatigue tests of the journal, an axle body and a radial plate of the wheel axle can be comprehensively realized based on the tester and a method.
Description
Technical Field
The utility model relates to a device to fatigue test is implemented to journal of rail vehicle shaft belongs to track traffic technical field.
Background
With the rapid popularization of urban rail transit in China and the great improvement of the running speed of vehicles, higher design and use requirements are provided for a bogie frame for bearing a vehicle body and transmitting traction. The axle is an important component of the bogie, and the fatigue test of the axle guarantees long-term, high-speed and safe operation.
At present, domestic test devices for wheel shafts are mainly divided into eccentric excitation type, rotary bending type, integral rolling type and simply supported beam rotary bending type structures, and accordingly, test methods are limited to fatigue tests of shaft bodies and radial plate parts.
The test device generally adopted in the prior art cannot perform the fatigue test of the journal part, and the remedy method can only approximately simulate the fatigue strength coefficient of the journal by performing corresponding conversion on test data of other parts.
The test apparatus based on the above configuration and test method can apply only radial load to the wheel shaft without axial load and data detection and derivation function.
Therefore, the existing axle fatigue test device cannot establish the corresponding relation between the load and the stress bending or the axle journal fatigue coefficient from the system, and cannot comprehensively evaluate whether the structural design and the material of the axle have rationality.
In view of this, the present patent application is specifically proposed.
SUMMERY OF THE UTILITY MODEL
Shaft fatigue test device, the problem that its aim at exists of solving above-mentioned prior art and can implement fatigue test and axial loading solution to the axle journal to establish axle journal rotatory bending and axial loading's test mode comprehensively, in order to improve the holistic fatigue test comprehensiveness of shaft.
In order to achieve the above design purpose, the wheel axle fatigue testing device mainly comprises:
the loading device comprises a loading cross beam and a platform, wherein wheels are radially fixed on the platform, and the end part of a tested wheel shaft is axially fixed on the platform;
the shaft neck of the tested wheel shaft is respectively connected with a vertical actuating cylinder, a transverse actuating cylinder and a longitudinal actuating cylinder.
In order to further improve the comprehensive load application effect at the shaft neck and simulate the inner ring press-fitting environment of the shaft neck in an actual use state, the improvement scheme is that the shaft neck of the tested wheel shaft is arranged in the mounting seat through a rolling bearing; the vertical actuating cylinder, the transverse actuating cylinder and the longitudinal actuating cylinder are respectively connected to the mounting seat.
In summary, the axle fatigue test device of the present invention has the advantages that the fatigue test of the axle neck, the axle body and the wheel disk of the axle can be comprehensively realized based on one set of test device and method, and meanwhile, the axle rotation bending test data represented by the axle neck is established by the axial loading scheme, so as to provide data support for improving the axle structure and optimizing the material design.
Drawings
The invention will now be further described with reference to the following drawings.
FIG. 1 is a schematic illustration of a journal fatigue test using an axle fatigue testing apparatus;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a shaft fatigue test using the wheel shaft fatigue test apparatus;
as shown in fig. 1 to 3, the device comprises a transverse actuating cylinder 1, a transverse actuating cylinder mounting seat 2, a platform 3, a tested wheel shaft 4, a mounting seat 5, a vertical actuating cylinder 6, a loading cross beam 7, wheels 8, a longitudinal actuating cylinder 9, a rolling bearing 10 and a longitudinal actuating cylinder mounting seat 11.
The stress detection piece is attached to the corner of the wheel shaft 4 under test, as shown in part a in fig. 1 and part B in fig. 2, respectively.
Detailed Description
Embodiment 1, as shown in fig. 1 and 2, a test device for implementing a method for testing fatigue of a journal of an axle mainly comprises a loading beam 7 and a platform 3. Wherein,
radially fixing the wheels 8 on the platform 3 and axially fixing the end of the tested wheel shaft 4;
the shaft neck of the tested wheel shaft 4 is arranged in the mounting seat 5 through a rolling bearing 10, and the vertical actuating cylinder 6, the transverse actuating cylinder 1 and the longitudinal actuating cylinder 9 are respectively connected with the mounting seat 5.
The axle journal fatigue test method is characterized in that a stress detection sheet is stuck at the corner of a tested axle 4 adjacent to a wheel 8;
in the process of carrying out the fatigue test of the shaft neck, the tested shaft 4 rotates in the circumferential direction at a constant speed, and the vertical actuating cylinder 6, the transverse actuating cylinder 1 and the longitudinal actuating cylinder 9 respectively apply loads to the shaft neck of the tested shaft 4 so as to complete the weekly operation required by the fatigue test.
Before a journal fatigue test is carried out, wheel axle radial stress calibration is carried out, namely when a transverse push-pull load is repeatedly applied to a journal by a transverse actuating cylinder 1, a vertical actuating cylinder 6 and a longitudinal actuating cylinder 9 are in a free state, and data output of a stress detection sheet pasted at a bent angle of a tested wheel axle 4 is obtained;
when the longitudinal cylinder 9 repeatedly applies a longitudinal push-pull load to the journal, the vertical cylinder 6 and the transverse cylinder 1 are in a free state, and data output of a stress detection piece adhered to the corner of the tested wheel shaft 4 is obtained, so that the stress corresponding relation of the radial push-pull load and the rotating corner of the tested wheel shaft 4 is obtained.
Before a journal fatigue test is carried out, axle axial stress calibration is carried out, namely when the vertical acting cylinder 6 repeatedly applies axial push-pull load to a journal, the longitudinal acting cylinder 9 and the transverse acting cylinder 1 are in a free state, and data output of a stress detection sheet pasted at a corner of the tested axle 4 is obtained, so that the stress corresponding relation between the axial push-pull load and the rotating corner of the tested axle 4 is obtained.
In the process of carrying out the journal radial fatigue test, the transverse actuating cylinder 1 and the longitudinal actuating cylinder 9 repeatedly apply radial push-pull loads to the journal to complete the fatigue test of a specified cycle.
In the process of carrying out the journal axial fatigue test, the vertical actuating cylinder 6 repeatedly applies axial push-pull load to the journal, namely, the journal radial fatigue test is carried out simultaneously with the axial fatigue test.
In example 2, as shown in fig. 3, the point different from example 1 is that, when the axle fatigue test is performed, the axle end of the wheel axle 4 to be tested is mounted inside the mount base 5 via the rolling bearing 10, and the vertical cylinder 6, the lateral cylinder 1, and the vertical cylinder 9 are connected to the mount base 5, respectively.
The other test apparatus and test method are similar to those of example 1, and the description thereof will not be repeated.
Claims (2)
1. The utility model provides a shaft fatigue test device which characterized in that: comprises a loading beam (7) and a platform (3),
the wheel (8) is radially fixed on the platform (3), and the end part of the tested wheel shaft (4) is axially fixed;
the shaft neck of the tested wheel shaft (4) is respectively connected with a vertical actuating cylinder (6), a transverse actuating cylinder (1) and a longitudinal actuating cylinder (9).
2. The axle fatigue testing apparatus of claim 1, wherein: the shaft neck of the tested wheel shaft (4) is arranged in the mounting seat (5) through a rolling bearing (10);
the vertical actuating cylinder (6), the transverse actuating cylinder (1) and the longitudinal actuating cylinder (9) are respectively connected to the mounting base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373984U CN202382948U (en) | 2011-12-20 | 2011-12-20 | Wheel axle fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373984U CN202382948U (en) | 2011-12-20 | 2011-12-20 | Wheel axle fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382948U true CN202382948U (en) | 2012-08-15 |
Family
ID=46631443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205373984U Expired - Lifetime CN202382948U (en) | 2011-12-20 | 2011-12-20 | Wheel axle fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806617A (en) * | 2016-04-26 | 2016-07-27 | 吉林大学 | Fatigue test table for wheel axles of high speed train |
| CN110770562A (en) * | 2016-10-21 | 2020-02-07 | 马钢-瓦顿公司 | Device for testing a shaft and/or a mechanical component mounted on a shaft and use of such a device |
-
2011
- 2011-12-20 CN CN2011205373984U patent/CN202382948U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806617A (en) * | 2016-04-26 | 2016-07-27 | 吉林大学 | Fatigue test table for wheel axles of high speed train |
| CN110770562A (en) * | 2016-10-21 | 2020-02-07 | 马钢-瓦顿公司 | Device for testing a shaft and/or a mechanical component mounted on a shaft and use of such a device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103175702B (en) | Fatigue test device and method for axle | |
| CN109187056B (en) | Wheel suspension test bench with real road surface characteristics | |
| CN101886982B (en) | Multifunctional vehicle dynamics dynamical characteristic test bed with loading device | |
| CN101995339B (en) | Multiple-degree-of-freedom vehicle dynamics testing platform with road spectrum analog function | |
| CN102032993B (en) | High-speed train wheel track contact stress test bench | |
| CN104374567A (en) | Rotation torque, radial force and axial force comprehensive loading test method and device | |
| CN206960119U (en) | High-speed overload railway axlebox bearing testing stand | |
| CN104359691A (en) | Detection test device for power wheel set of railway vehicle | |
| CN102252840B (en) | Tester of fault diagnosis of rotating machinery with closed power | |
| CN202382948U (en) | Wheel axle fatigue tester | |
| CN101368882B (en) | Car body dynamic intensity analysis method | |
| CN105466703A (en) | Leaf spring assembly fatigue test bench | |
| CN106769108A (en) | A kind of laboratory loading device of the two-way dynamic loading of wheel hub | |
| CN203455166U (en) | Rotation torque, radial force and axial force comprehensive loading test apparatus | |
| CN104251781A (en) | Automotive power assembly suspension system durability test method | |
| CN207472567U (en) | A kind of automotive hub silt brine bearing tester | |
| CN115979642A (en) | Dynamic energy consumption measurement and evaluation calculation method for automobile hub bearing unit | |
| CN105277365A (en) | Independent unit open type railway wheelset bearing loading running-in test machine | |
| CN107505147A (en) | Tire Static stress test system and test method | |
| CN201917496U (en) | Testing equipment for contact stress of wheels and tracks of rapid train | |
| RU2335753C1 (en) | Power test stand for wheeled vehicle | |
| CN203908860U (en) | Tire testing running gear | |
| CN204043910U (en) | A kind of fatigue experimental device of vehicle balance axle | |
| CN202075135U (en) | Improvement of automobile braking test bench | |
| CN206056971U (en) | A kind of automobile suspension system performance detection testing bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |