CN103674580A - Vehicle body side wall loading device and method - Google Patents
Vehicle body side wall loading device and method Download PDFInfo
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- CN103674580A CN103674580A CN201310617881.7A CN201310617881A CN103674580A CN 103674580 A CN103674580 A CN 103674580A CN 201310617881 A CN201310617881 A CN 201310617881A CN 103674580 A CN103674580 A CN 103674580A
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Abstract
The invention relates to the technical field of vehicle body strength testing and discloses a vehicle body side wall loading device. The device comprises a test platform, a force application mechanism and a reaction mechanism. The test platform comprises a platform top used for holding a vehicle body to be tested. The force application mechanism comprises an airbag fixing plate, a loading airbag and an air pressure control unit. The airbag fixing plate is vertically mounted on the platform top. The loading airbag is mounted on the inner side of the airbag fixing plate. The air pressure control unit is communicated with the loading airbag. The reaction mechanism comprises a reaction support member and a force sensor. The reaction support member is mounted on the platform top. The inner side of the reaction support member is pressed against the vehicle body to be tested. The force sensor is disposed between the reaction support member and the vehicle body to be tested, and is connected with an external data acquisition device. The vehicle body side wall loading device has the advantages that applied load can be evenly distributed on the side wall of the vehicle body, the transverse bending property of the vehicle body and the airtightness and structural strength in windows and doors can be detected, and safety of the vehicle body can be assessed accurately. The invention further provides a vehicle body side wall loading method.
Description
Technical field
The present invention relates to car body strength experimental technique field, particularly relate to a kind of vehicle body side wall load charger and load loading method.
Background technology
Along with the fast development of domestic track traffic, EMU, city railway vehicle are widely used.In order to adapt to the needs of track traffic development, need better to understand the various performances of vehicle, the quality of the vehicle that provides is provided.Car body is approached to the test of actual strength test and local sealing structure more very necessary.The test of existing rail vehicle, not about test unit and the method for car body side wind-force, is only in car body test of static strength, and cross force is converted into a certain amount of vertical load, on the uniform floor that is applied to car body inside.The vehicle window mounting structure of rail vehicle and side door mounting structure are lacked to uniform loading method and device targetedly.For above problem, need a kind ofly can to apply uniformly distributed load to test vehicle body side wall, meanwhile, also can apply to the vehicle window of motor train unit vehicle and car door the load charger of uniformly distributed load.
Summary of the invention
(1) technical matters that will solve
The object of this invention is to provide and a kind ofly can apply uniformly distributed load to test vehicle body side wall, meanwhile, also can apply to the vehicle window of motor train unit vehicle and car door load charger and the load loading method of uniformly distributed load.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of vehicle body side wall load charger, comprise experiment porch, force application mechanism and counter-force mechanism, described experiment porch comprises table top, described table top is used for bearing car body to be measured; Described force application mechanism and counter-force mechanism are arranged on respectively the both sides of car body to be measured; Described force application mechanism comprises air bag fixed head, loads air bag and air pressure control module, and described air bag fixed head is vertically arranged on described table top; Described loading air bag is arranged on the inner side of described air bag fixed head, and described air pressure control module is communicated with described loading air bag, for the air pressure in controlled loading air bag; Described counter-force mechanism comprises counter-force support member and power sensor, and described counter-force support member is arranged on described table top, and the medial roof of described counter-force support member is pressed car body to be measured; Described power sensor setting, between described counter-force support member and car body to be measured, and is connected with external data collecting device.
Wherein, described experiment porch also comprises application of force beam, and described application of force beam is arranged on the outside of described air bag fixed head, for pushing up, presses described air bag fixed head.
Wherein, the outside of described air bag fixed head is provided with application of force support member, and described application of force beam is pressed on described application of force support member top.
Wherein, described air bag fixed head is provided with vertical chute, and described application of force support member is slidably mounted on described chute by bolt assembly.
Wherein, described table top is provided with ground chute, and the bottom of described air bag fixed head fixes by foot bolt and described ground chute; Described counter-force support member fixes by support and described ground chute.
Wherein, described experiment porch also comprises reaction beam, and described reaction beam is arranged on the outside of described counter-force support member, for pushing up, presses described counter-force support member.
Wherein, the inner curve of described air bag fixed head is identical with the positive camber of car body to be measured.
The present invention also provides a kind of load loading method that uses described vehicle body side wall load charger, it is characterized in that, comprises the following steps:
S1: air bag fixed head is installed on table top;
S2: car body to be measured is placed on table top, and is positioned at the inner side of air bag fixed head;
S3: counter-force support member is installed, is made counter-force support member top press car body to be measured, and power sensor is connected with external data harvester;
S4: start air pressure control module, inflate and venting work loading air bag, realize the uniform load for the treatment of measuring car body.
(3) beneficial effect
Vehicle body side wall load charger provided by the invention and load loading method, using loading air bag to treat survey vehicle body side wall laterally loads, realize on the side wall that loaded load is evenly distributed on car body, can detect car body transverse curvature performance and vehicle window, door sealing and structural strength, realize the security of accurate evaluation car body.
Accompanying drawing explanation
Fig. 1 is lateral junction composition of the present invention;
In figure, 1: car body to be measured; 2: load air bag; 3: air bag fixed head; 4: tracheae; 5: air pressure control module; 6: application of force beam; 7: application of force support member; 8: foot bolt; 9: table top; 10: support; 11: reaction beam; 12: counter-force support member; 13: power sensor.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance is used for illustrating the present invention, but is not used for limiting the scope of the invention.
As shown in Figure 1, vehicle body side wall load charger of the present invention, comprises experiment porch, force application mechanism and counter-force mechanism, and experiment porch comprises table top 9, and table top 9 is for bearing car body 1 to be measured.Force application mechanism and counter-force mechanism are arranged on respectively the both sides of car body 1 to be measured.Table top 1 is also provided with ground chute (scheming not shown), and ground chute is used for installing force application mechanism and counter-force mechanism.As shown in Figure 1, force application mechanism is arranged on the left side of car body to be measured, and counter-force mechanism is arranged on the right side of car body to be measured.Force application mechanism is for exerting pressure to a side of car body to be measured, and counter-force mechanism pushes up the body of delaying unloading, and prevents that car body from moving, and tests the suffered pressure of car body, transmits test data to external data collecting device.
Force application mechanism comprises air bag fixed head 3, loads air bag 2 and air pressure control module 5, and air bag fixed head 3 is a tabular steelwork component, and air bag fixed head 3 is vertically arranged on table top 9.Concrete, the bottom of air bag fixed head 3 is provided with bolt hole, by foot bolt 8, air bag fixed head 3 and ground chute is fixed.Load the inner side (as shown in Figure 1, a side of the close car body 1 to be measured in inner side) that air bag 2 is arranged on air bag fixed head, air pressure control module 5 is communicated with by tracheae 4 with loading air bag 2, and air pressure control module 5 is for the air pressure in controlled loading air bag 2.In use, the pressure of air pressure control module 5 controlled loading air bags 2, makes to load air bag 2 and expands, and due to 3 pairs of position-limiting actions that load air bag 2 of air bag fixed head, loads air bag 2 and exerts pressure to car body.
Counter-force mechanism comprises counter-force support member 12 and power sensor 13, and counter-force support member 12 is arranged on table top 9 by support 10, and the medial roof of counter-force support member 12 is pressed car body to be measured; Power sensor 13 is arranged between counter-force support member 12 and car body to be measured 1, and is connected with external data collecting device, and power sensor 13 is for sending data to outside data acquisition equipment.Concrete, counter-force support member 12 is a column steel part, counter-force support member 12 is horizontally disposed with, and car body 1 to be measured is pointed in the axle center of cylinder.Counter-force support member 12 is fixed on the top of a support 10, and the bottom of support 10 fixes by foot bolt 8 and ground chute.The inner side that power sensor 13 is arranged on counter-force support member 12 (as shown in Figure 1, near a side of car body 1 to be measured), when car body 1 to be measured is pressed on counter-force support member 12 tops, the power that car body 1 to be measured presses to counter-force support member 12 sends to external data collecting device by power sensor 13, thereby records the suffered pressure of car body to be measured.
In order to improve experiment effect, experiment porch also comprises application of force beam 6 and reaction beam 11.Application of force beam 6 is arranged on the outside of air bag fixed head 3, for top pressuring gasbag fixed head 3.The outside of air bag fixed head 3 is provided with application of force support member 7, and application of force beam 6 is pressed on application of force support member 7 tops.Preferably, air bag fixed head 3 is provided with vertical chute, and application of force support member 7 is slidably mounted on chute by bolt assembly.Reaction beam 11 is arranged on the outside of counter-force support member 12, for pushing up, presses counter-force support member 12.In use, load air bag 2 inflations, to both sides, exert pressure, load air bag 2 to car body 1 to be measured and air bag fixed head 3 on-load pressures, because the intensity of the air bag fixed head 3 of platy structure is difficult to the power that supporting loading air bag 2 applies, adopt application of force back to push down air bag fixed head 3, prevent 3 bendings of air bag fixed head, even fracture, and the data that test is arrived are more accurate.By reaction beam 11 top, press counter-force support members 12, prevent that counter-force support member 12 is moved under the effect of power, and support 10 is bent fracture, meanwhile, also avoid support 10 distortion absorbabilities, make the result of test more accurate.The present invention uses loading air bag to treat and surveys the horizontal loaded load of vehicle body side wall, owing to loading the uniform property of the internal intensity of air bag, realize on the side wall that loaded load is evenly distributed on car body, can detect car body transverse curvature performance and vehicle window, door sealing and structural strength, realize the security of accurate evaluation car body.
Preferably, the inner curve of air bag fixed head 3 is identical with the positive camber of car body 1 to be measured.The inner curve of air bag fixed head 3 is identical with the positive camber for the treatment of side body 1, and the expansion coefficient that makes to load any one position between air bag and car body is identical, guarantees the homogeneity that air bag outwards loads, and improves the accuracy of measuring.
Because air bag fixed head 3 is a steel plate structure, it is applied to wider range of car body to be measured, in order to guarantee the accurate of test, adopt along the counter-force mechanism of two horizontal direction parallel arranged and support car body to be measured, and use two counter-force mechanisms to measure the size of the suffered pressure of car body to be measured simultaneously.
The present invention also provides a kind of and uses above-mentioned vehicle body side wall load to load beneficial vehicle body side wall load loading method, comprises the following steps:
(1) by foot bolt 8, air bag fixed head 3 is fixedly installed in the chute of ground, air bag fixed head 3 is installed on table top 9, adjust the height of application of force support member 7, application of force support member 7 tops are pressed onto on application of force beam 6.
(2) by crane, car body 1 to be measured is winched on table top 9, car body 1 to be measured is placed on table top 9, and be positioned at the inner side of air bag fixed head 3.
(3) counter-force support member 12 is installed, is made counter-force support member 12 tops press car body 1 to be measured, and power sensor 13 is connected with external data harvester.Counter-force support member 12 is fixed with ground chute by support 10 and bolt assembly 8, counter-force support member 12 is arranged on to the right side of car body 1 to be measured, meanwhile, counter-force support member 12 tops are pressed between car body 1 to be measured and reaction beam 11.
(4) start air pressure control module 5, to loading air bag 2, inflate and venting work, realize the uniform load for the treatment of measuring car body 1.Start air pressure control module 5, by tracheae 4, to loading in air bag 2, be filled with or gas bleeding, thereby the tolerance in controlled loading air bag 2 makes to load air bag 2 and exerts pressure to car body 1 to be measured.Owing to loading air bag 2, be the loading component of a scalability, load air bag 2 internal pressures identical everywhere, the power that loading air bag 2 is applied on car body 1 to be measured is identical everywhere, realizes the side wall uniform load load for the treatment of measuring car body 1.
It should be noted that, inner side of the present invention refers to the side near car body to be measured, and outside refers to the side away from car body to be measured.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a vehicle body side wall load charger, is characterized in that, comprises experiment porch, force application mechanism and counter-force mechanism, and described experiment porch comprises table top, and described table top is used for bearing car body to be measured; Described force application mechanism and counter-force mechanism are arranged on respectively the both sides of car body to be measured; Described force application mechanism comprises air bag fixed head, loads air bag and air pressure control module, and described air bag fixed head is vertically arranged on described table top; Described loading air bag is arranged on the inner side of described air bag fixed head, and described air pressure control module is communicated with described loading air bag, for the air pressure in controlled loading air bag; Described counter-force mechanism comprises counter-force support member and power sensor, and described counter-force support member is arranged on described table top, and the medial roof of described counter-force support member is pressed car body to be measured; Described power sensor setting, between described counter-force support member and car body to be measured, and is connected with external data collecting device.
2. vehicle body side wall load charger as claimed in claim 1, is characterized in that, described experiment porch also comprises application of force beam, and described application of force beam is arranged on the outside of described air bag fixed head, for pushing up, presses described air bag fixed head.
3. vehicle body side wall load charger as claimed in claim 2, is characterized in that, the outside of described air bag fixed head is provided with application of force support member, and described application of force beam is pressed on described application of force support member top.
4. vehicle body side wall load charger as claimed in claim 3, is characterized in that, described air bag fixed head is provided with vertical chute, and described application of force support member is slidably mounted on described chute by bolt assembly.
5. vehicle body side wall load charger as claimed in claim 1, is characterized in that, described table top is provided with ground chute, and the bottom of described air bag fixed head fixes by foot bolt and described ground chute; Described counter-force support member fixes by support and described ground chute.
6. vehicle body side wall load charger as claimed in claim 1, is characterized in that, described experiment porch also comprises reaction beam, and described reaction beam is arranged on the outside of described counter-force support member, for pushing up, presses described counter-force support member.
7. vehicle body side wall load charger as claimed in claim 1, is characterized in that, the inner curve of described air bag fixed head is identical with the positive camber of car body to be measured.
8. a load loading method for the vehicle body side wall load charger described in right to use requirement 1 to 7 any one, is characterized in that, comprises the following steps:
S1: air bag fixed head is installed on table top;
S2: car body to be measured is placed on table top, and is positioned at the inner side of air bag fixed head;
S3: counter-force support member is installed, is made counter-force support member top press car body to be measured, and power sensor is connected with external data harvester;
S4: start air pressure control module, inflate and venting work loading air bag, realize the uniform load for the treatment of measuring car body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310617881.7A CN103674580B (en) | 2013-11-27 | 2013-11-27 | Vehicle body side wall load charger and load loading method |
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| CN201310617881.7A CN103674580B (en) | 2013-11-27 | 2013-11-27 | Vehicle body side wall load charger and load loading method |
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| CN103674580A true CN103674580A (en) | 2014-03-26 |
| CN103674580B CN103674580B (en) | 2015-12-30 |
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Cited By (10)
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| CN105466677A (en) * | 2016-01-11 | 2016-04-06 | 北京九州一轨隔振技术有限公司 | Tunnel acoustic baffle fatigue tester |
| CN105716952A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Test method for skin test part |
| CN105716889A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Air bag loading test method |
| CN106556537A (en) * | 2016-11-21 | 2017-04-05 | 上海航天精密机械研究所 | A kind of special-shaped nacelle external pressure device |
| CN109084969A (en) * | 2018-06-21 | 2018-12-25 | 湖北三江航天江北机械工程有限公司 | MISSILE LAUNCHING air deflector entirety Static Load Test Method |
| CN110793791A (en) * | 2019-11-19 | 2020-02-14 | 中车株洲电力机车有限公司 | Driver's cab side collision-resistant test device |
| CN111458126A (en) * | 2020-04-17 | 2020-07-28 | 中国飞机强度研究所 | Uniform load follow-up loading device |
| CN111521494A (en) * | 2020-05-12 | 2020-08-11 | 河北工业大学 | Rock bending strength tester under action of uniformly distributed loads |
| CN113218685A (en) * | 2021-04-25 | 2021-08-06 | 同济大学 | Loading test device for in-plane and out-plane coupling of structural wall member |
| CN113820150A (en) * | 2020-07-03 | 2021-12-21 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for vehicle body end wall anti-collision column |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105716952A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Test method for skin test part |
| CN105716889A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Air bag loading test method |
| CN105466677A (en) * | 2016-01-11 | 2016-04-06 | 北京九州一轨隔振技术有限公司 | Tunnel acoustic baffle fatigue tester |
| CN106556537A (en) * | 2016-11-21 | 2017-04-05 | 上海航天精密机械研究所 | A kind of special-shaped nacelle external pressure device |
| CN109084969A (en) * | 2018-06-21 | 2018-12-25 | 湖北三江航天江北机械工程有限公司 | MISSILE LAUNCHING air deflector entirety Static Load Test Method |
| CN110793791A (en) * | 2019-11-19 | 2020-02-14 | 中车株洲电力机车有限公司 | Driver's cab side collision-resistant test device |
| CN111458126A (en) * | 2020-04-17 | 2020-07-28 | 中国飞机强度研究所 | Uniform load follow-up loading device |
| CN111458126B (en) * | 2020-04-17 | 2022-02-18 | 中国飞机强度研究所 | Uniform load follow-up loading device |
| CN111521494A (en) * | 2020-05-12 | 2020-08-11 | 河北工业大学 | Rock bending strength tester under action of uniformly distributed loads |
| CN113820150A (en) * | 2020-07-03 | 2021-12-21 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for vehicle body end wall anti-collision column |
| CN113820150B (en) * | 2020-07-03 | 2022-10-25 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for vehicle body end wall anti-collision column |
| CN113218685A (en) * | 2021-04-25 | 2021-08-06 | 同济大学 | Loading test device for in-plane and out-plane coupling of structural wall member |
| CN113218685B (en) * | 2021-04-25 | 2022-06-28 | 同济大学 | Loading test device for planar internal and external coupling of structural wall member |
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Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |