CN103163015A - Bogie frame static strength and fatigue test support apparatus and method thereof - Google Patents
Bogie frame static strength and fatigue test support apparatus and method thereof Download PDFInfo
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- CN103163015A CN103163015A CN2011104053358A CN201110405335A CN103163015A CN 103163015 A CN103163015 A CN 103163015A CN 2011104053358 A CN2011104053358 A CN 2011104053358A CN 201110405335 A CN201110405335 A CN 201110405335A CN 103163015 A CN103163015 A CN 103163015A
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- axletree
- bogie frame
- tie
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Abstract
The invention relates to a bogie frame static strength and fatigue test support apparatus and a method thereof, wherein flexible supports are concurrently formed in a longitudinal direction, a transverse direction and a vertical direction, and the support in the arbitrary direction is not affected by a load in the other directions. The support apparatus comprises two axles for bearing a tested frame, wherein every axle respectively comprises two groups of longitudinal direction tension rods, a group of transverse direction tension rods and a group of vertical direction support rods so as to implement constraints, wherein the longitudinal direction tension rods, the transverse direction tension rods and the vertical direction support rods are double force rods, one end of the longitudinal direction tension rods, one end of the transverse direction tension rods, and one end of the vertical direction support rods are connected with an installation seat, the other end of the longitudinal direction tension rods, the other end of the transverse direction tension rods, and the other of the vertical direction support rods are connected with the axle, the flexible supports for the axles in the longitudinal direction, the transverse direction and the vertical direction are formed through the double force rods, and movement of the axle in one of the longitudinal direction, the transverse direction and the vertical direction is not affected by the other two directions so as to respectively achieve application of a skew symmetry displacement and a longitudinal creep torque on the tested frame.
Description
Technical field
The present invention relates to a kind of bracing or strutting arrangement and method thereof that is applied to railway vehicle bogie frame static strength and torture test, belong to the track traffic technical field.
Background technology
Along with the significantly lifting of rapidly universal and the Vehicle Speed of domestic city track traffic, for the bogie frame of bearing body and transmitting tractive power, higher design and use requirement has been proposed.
For understanding better the pi of strength of bogie frame, usually need to carry out static strength and torture test.When carrying out this type of static strength and torture test, need framework is applied local load on the Main Load such as vertical, horizontal and vertical and mount pads such as motor mount, braking flap seat, must carry out effectively supporting fixing to framework when applying these load.
Be that bracing or strutting arrangement should be able to provide the constraint reaction when loading on the one hand, also will implement skew symmetry displacement and creep moment longitudinally to framework on the other hand.So-called skew symmetry displacement is simulation bogie during by adjustment curve, due to four wheels not in a surface level, the uneven and torsional deflection of the framework that causes of the anchorage force that causes.So-called vertically creep moment is that the direction of vertical Creep Forces of being subject to due to the left and right wheels on same axletree is opposite, and size is approximately equalised power, and the moment that these two power form is exactly vertical creep moment.
When existing enforcement bogie frame static strength and torture test, the bracing or strutting arrangement that adopts is a kind of device that is completely fixed on testing table, and framework is had four strong points.If being applied the skew symmetry displacement, framework increases height on a strong point, for example add a pad, this mode is available to envelope test, and require equally the skew symmetry displacement when implementing the bogie frame torture test, load number of times and be about 1,000,000 times, the supporting way of above-mentioned increase height obviously can't be implemented.Therefore existing bracing or strutting arrangement is only to be applied to regularly testing table, tests exactly and can't apply vertical creep moment to framework.
In view of this, the special present patent application that proposes.
Summary of the invention
Bogie frame static strength of the present invention and torture test bracing or strutting arrangement and method thereof, its purpose is to address the above problem with defective and vertically, laterally and form simultaneously flexible support on vertical, be any one party to support be not subjected to the constraint of other direction load, thereby can implement respectively test of static strength and torture test based on same bracing or strutting arrangement.
Another goal of the invention is, realizes bogie frame is applied vertical creep moment and skew symmetry distortion, framework applied necessary load and displacement when being convenient to torture test.
For achieving the above object, described bogie frame static strength and torture test bracing or strutting arrangement mainly include:
Be used for carrying by 2 axletrees of test framework, axletree connects respectively 2 groups of longitudinal ties, 1 group of cross-tie and 1 group of vertical support bar.
Wherein, longitudinal tie, cross-tie and vertical support bar are two power bars;
Longitudinal tie, cross-tie are all that an end connection seat, the other end are connected in axletree;
Vertical support bar is connected between testing table and axletree vertical.
As above-mentioned basic scheme, tested the axletree of framework for carrying, vertically, laterally and on vertical formed flexible support by two power bars, the motion that is any one direction of axletree in vertical, horizontal and vertical is not to be subjected to another both direction constraint, thereby realizes respectively applied skew symmetry displacement and vertical creep moment by the test framework.
When applying vertical creep moment, can all be replaced by the vibrator that applies continuously reciprocal longitudinal loading to axletree with being connected in the longitudinal tie of same axletree, and 2 vibrators apply the load of opposite direction to axletree.The mode that vibrator is controlled with load applies rightabout longitudinal force to axletree, and namely vibrator drives axletree and does yaw motion, and is not subjected to the effect of contraction of cross-tie and vertical support bar.
When carrying out static strength and torture test, at least 1 vertical support bar is used to apply continuously to axletree the vibrator replacement of reciprocal vertical load.The mode that vibrator is controlled with displacement applies vertical displacement up or down to axletree, namely drives axletree by vibrator and does and sidewinder motion, and the while can not be subjected to the effect of contraction of cross-tie and longitudinal tie, thereby tested framework is applied the skew symmetry displacement.
Based on the use of foregoing invention design with bracing or strutting arrangement, also can realize following bogie frame static strength and torture test method for supporting:
Be installed on 2 axletrees of placing side by side by frock clamp by the test framework;
By longitudinal tie, cross-tie and vertical support bar, axletree is formed flexible support, thus the motion that axletree being fixedly connected with on any direction is not subjected on other directions, constraint and the interference of load.
Wherein, by test framework the same side, put on 2 lateral confinement that axial direction is identical by 2 cross-ties.
The longitudinal tie that is connected on same axletree is replaced by vibrator simultaneously, thereby applies continuously vertical creep moment of direction alternation to axletree.
At least 1 vertical support bar is replaced by a load cylinder, thereby applies continuously reciprocal vertical load to axletree.
Content to sum up, bogie frame static strength of the present invention and torture test bracing or strutting arrangement and method has the following advantages and beneficial effect:
1, form flexible support for axletree, can implement respectively test of static strength and torture test based on same bracing or strutting arrangement.
2, realize bogie frame is applied vertical creep moment and skew symmetry distortion, time saving and energy saving and need not manual intervention.
3, can improve significantly the accuracy of static strength and torture test test data, the pi of strength of the bogie frame that is conducive to systematically to test and assess.
Description of drawings
Now in conjunction with the following drawings the present invention is described further.
Fig. 1 is described bogie frame static strength and torture test bracing or strutting arrangement schematic diagram;
As shown in Figure 1, tested framework 1, axletree 2, longitudinal tie 3, cross-tie 4, vertical support bar 5, longitudinal tie mount pad 6, cross-tie mount pad 7.
Embodiment
Be used for carrying by 2 axletrees 2 of placing side by side of test framework 1;
Axletree 2 is connected with 1 group of cross-tie 4, wherein 2 cross-ties 4 along by the both sides of test frameworks 1, be connected to cross-tie mount pad 7, axletree 2 and carried the position transversely between test framework 1;
In axletree 2 bottom supports, 1 group of 4 vertical support bar 5 is arranged, vertical support bar 5 is connected to testing table, axletree 2 and is carried the bottom at position between test framework 1;
Being connected to the vibrator that 2 longitudinal ties 3 on same axletree 2 are used to apply continuously to axletree 2 reciprocal longitudinal loading simultaneously replaces;
At least 1 vertical support bar 5 is replaced for the vibrator that applies continuously reciprocal vertical deviation to axletree 2 by one.
Bogie frame static strength and the torture test method for supporting realized based on above-mentioned bracing or strutting arrangement are as follows:
Be installed on 2 axletrees 2 of placing side by side by frock clamp by test framework 1;
Form flexible support by longitudinal tie 3, cross-tie 4 and 5 pairs of axletrees of vertical support bar 2, thus the motion that axletree 2 being fixedly connected with on any direction is not subjected on other directions, constraint and the interference of load.
Wherein, by test framework 1 the same side, put on 2 identical tractions of axletree 2 directions by 2 cross-ties 4 and connect.
2 longitudinal ties 3 that are connected on same axletree 2 are replaced by vibrator simultaneously, thereby apply continuously reciprocal longitudinal loading to axletree 2.
At least 1 vertical support bar 5 is replaced by a load cylinder, thereby applies continuously reciprocal vertical load to axletree 2.
As mentioned above, given scheme content, can derive similar technical scheme in conjunction with the accompanying drawings and embodiments.In every case be the content that does not break away from technical solution of the present invention, to any simple modification, equivalent variations and modification that above embodiment does, all still belong to the protection domain of technical solution of the present invention according to above-mentioned technical spirit.
Claims (7)
1. a bogie frame static strength and torture test bracing or strutting arrangement, it is characterized in that: include 2 axletrees (2) of being tested framework (1) for carrying, axletree (2) connects respectively 2 groups of longitudinal ties (3), 1 group of cross-tie (4) and 1 group of vertical support bar (5);
Longitudinal tie (3), cross-tie (4) and vertical support bar (5) are two power bars;
Longitudinal tie (3), cross-tie (4) are all that an end connection seat, the other end are connected in axletree (2);
Vertical support bar (5) is connected between testing table and axletree (2) vertical.
2. bogie frame static strength according to claim 1 and torture test bracing or strutting arrangement, it is characterized in that: be connected in the longitudinal tie (3) of same axletree (2), all be replaced by the vibrator that applies continuously reciprocal longitudinal loading to axletree (2).
3. bogie frame static strength according to claim 1 and 2 and torture test bracing or strutting arrangement is characterized in that: at least 1 vertical support bar (5), the vibrator that is used to apply continuously to axletree (2) reciprocal vertical load replaces.
4. the method for supporting of realizing as bogie frame static strength as described in claims 1 to 3 and torture test bracing or strutting arrangement is characterized in that: test framework (1) and be installed on 2 side by side on the axletrees (2) of placements by frock clamp;
By longitudinal tie (3), cross-tie (4) and vertical support bar (5), axletree (2) is formed flexible support, thus the motion that axletree (2) being fixedly connected with on any direction is not subjected on other directions, constraint and the interference of load.
5. bogie frame static strength according to claim 4 and torture test method for supporting, is characterized in that: by test framework (1) the same side, put on the identical lateral confinement of 2 axletrees (2) direction by 2 cross-ties (4).
6. according to claim 4 or 5 described bogie frame static strength and torture test method for supporting, it is characterized in that: the longitudinal tie (3) that is connected on same axletree (2) is replaced by vibrator simultaneously, thereby applies continuously vertical creep moment of direction alternation to axletree (2).
7. bogie frame static strength according to claim 6 and torture test method for supporting is characterized in that:
At least 1 vertical support bar (5) is replaced by a vibrator, thereby applies continuously reciprocal vertical load to axletree (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104053358A CN103163015A (en) | 2011-12-08 | 2011-12-08 | Bogie frame static strength and fatigue test support apparatus and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104053358A CN103163015A (en) | 2011-12-08 | 2011-12-08 | Bogie frame static strength and fatigue test support apparatus and method thereof |
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| CN103163015A true CN103163015A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104053358A Pending CN103163015A (en) | 2011-12-08 | 2011-12-08 | Bogie frame static strength and fatigue test support apparatus and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406803B (en) * | 2014-11-20 | 2017-01-11 | 长春轨道客车股份有限公司 | Auxiliary loading device for bogie frame strength test |
| CN112014095A (en) * | 2020-09-11 | 2020-12-01 | 中车齐齐哈尔车辆有限公司 | Loading device for fatigue test of side frame of bogie of railway wagon |
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| KR20030084870A (en) * | 2003-10-15 | 2003-11-01 | 한국철도기술연구원 | Load testing system of bogie frame for rolling stock |
| CN2669171Y (en) * | 2003-11-24 | 2005-01-05 | 中国北车集团四方车辆研究所 | Three-way loading tester of side rack of railway freight carrier steering rack |
| CN101363773A (en) * | 2008-09-17 | 2009-02-11 | 西南交通大学 | Testing table for fatigue strength of locomotive bogie |
| KR100946322B1 (en) * | 2008-08-29 | 2010-03-08 | 한국기계연구원 | A journal union construction of a load-testing apparatus for a train bogie frame |
| CN201476969U (en) * | 2009-07-06 | 2010-05-19 | 青岛四方车辆研究所有限公司 | Bogie fatigue testing stand |
| CN101750195A (en) * | 2009-12-25 | 2010-06-23 | 吉林大学 | Double six degree-of-freedom motion testing platform for railway vehicle bogie |
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2011
- 2011-12-08 CN CN2011104053358A patent/CN103163015A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030084870A (en) * | 2003-10-15 | 2003-11-01 | 한국철도기술연구원 | Load testing system of bogie frame for rolling stock |
| CN2669171Y (en) * | 2003-11-24 | 2005-01-05 | 中国北车集团四方车辆研究所 | Three-way loading tester of side rack of railway freight carrier steering rack |
| KR100946322B1 (en) * | 2008-08-29 | 2010-03-08 | 한국기계연구원 | A journal union construction of a load-testing apparatus for a train bogie frame |
| CN101363773A (en) * | 2008-09-17 | 2009-02-11 | 西南交通大学 | Testing table for fatigue strength of locomotive bogie |
| CN201476969U (en) * | 2009-07-06 | 2010-05-19 | 青岛四方车辆研究所有限公司 | Bogie fatigue testing stand |
| CN101750195A (en) * | 2009-12-25 | 2010-06-23 | 吉林大学 | Double six degree-of-freedom motion testing platform for railway vehicle bogie |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406803B (en) * | 2014-11-20 | 2017-01-11 | 长春轨道客车股份有限公司 | Auxiliary loading device for bogie frame strength test |
| CN112014095A (en) * | 2020-09-11 | 2020-12-01 | 中车齐齐哈尔车辆有限公司 | Loading device for fatigue test of side frame of bogie of railway wagon |
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Application publication date: 20130619 |