CN103674581B - The experiment loading unit of fuel motor train unit under-train fuel tank - Google Patents
The experiment loading unit of fuel motor train unit under-train fuel tank Download PDFInfo
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- CN103674581B CN103674581B CN201310625343.2A CN201310625343A CN103674581B CN 103674581 B CN103674581 B CN 103674581B CN 201310625343 A CN201310625343 A CN 201310625343A CN 103674581 B CN103674581 B CN 103674581B
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Abstract
The present invention relates to car body strength experimental technique field, disclose a kind of experiment loading unit of fuel motor train unit under-train fuel tank, comprise: load plate, load cylinder, force snesor, simulated oil cabinet frame and reaction frame, simulated oil cabinet frame is fixedly mounted on the fuel tank mounting base of car body; Reaction frame comprises support body and reaction plate, and support body is fixed on testing table, and reaction plate is located on support body; Load plate is arranged on the lower position of reaction plate, and is connected with simulated oil cabinet frame by coupling assembling; Load cylinder is placed between load plate and reaction plate; Force snesor is arranged between load cylinder and load plate.This experiment loading unit structure is simple, is convenient to installation and removal, loads accurately quick, can carry out repeated loading at short notice to fuel tank overhang region under car, and ensure that loading centre of gravity place is positioned at loading area center, loading accuracy is high, reproducible.Use hydraulic loaded mode, load evenly, the scope of loading can regulable control rapidly, without load of suddenling change.
Description
Technical field
The present invention relates to car body strength experimental technique field, particularly relate to a kind of experiment loading unit of fuel motor train unit under-train fuel tank.
Background technology
When carrying out a car vehicle static strength test to fuel oil motor train unit, need to carry out 1:1 simulation loading to fuel tank region under car, whether can safety supports fuel tank with the intensity of testing car body.But after test car body is placed into test platform, find the narrow space under car body, if come simulation fuel tank region with conventional weight device to load, have following defect: under (1) car, spatial altitude is little, in load applying process, loading personnel are difficult to be seated to by balancing weight fuel tank region under car in the finite space.(2) the heavy 8000Kg of fuel tank, adopt the artificial mode loading balancing weight, complete car lower area 8000Kg counterweight and once need 4-5 hour, in loading procedure, weight is for increase counterweight gradually lentamente, cause instruction carriage body region to bear uneven load for a long time, be difficult to gather true stress data.For the accuracy of warranty test data acquisition, at least carry out loading for more than 3 times in process of the test, the test period is oversize, labour intensity is very big and because of narrow space, easily cause danger.(3) adopt artificial counterweight to load, the center of gravity of counterweight and the center of pilot region are not inconsistent, and accurately cannot ensure load mass, and data redundancy are poor, cause test result inaccurate.(4) loading area need be arranged in the counterweight process of a large amount of stress collection points very easily by foil gauge, data line damage.
Summary of the invention
(1) technical matters that will solve
The object of this invention is to provide that a kind of structure is simple, the fast and experiment loading unit of the uniform fuel motor train unit under-train fuel tank of loaded load of loading velocity.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of experiment loading unit of fuel motor train unit under-train fuel tank, comprise: load plate, load cylinder, force snesor, simulated oil cabinet frame and reaction frame, described simulated oil cabinet frame is fixedly mounted on the fuel tank mounting base of car body; Described reaction frame comprises support body and reaction plate, and described support body is fixed on testing table, and described reaction plate is located on support body; Described load plate is arranged on the lower position of described reaction plate, and is connected with described simulated oil cabinet frame by coupling assembling; Described load cylinder is placed in described load plate, and between described load plate and described reaction plate; Described force snesor is located between described load cylinder and described load plate.
Wherein, described support body comprises column and crossbeam, and the lower end of described column is fixed on testing table, and described crossbeam is located at the upper end of described column, and described reaction plate is located on crossbeam.
Wherein, described coupling assembling comprises connecting plate and connecting rod, and described connecting plate is arranged in described simulated oil cabinet frame; Described connecting rod connects described load plate and described connecting plate.
Wherein, described reaction plate is provided with through hole, and described connecting rod is located in described through hole.
Wherein, described through hole is long slot bore.
Wherein, described connecting rod is adjustable leading screw.
Wherein, buttress brace is provided with between described column and described crossbeam.
Wherein, this charger also comprises a load control element, and described load control element is connected with described force snesor and load cylinder respectively, receives the signal of described force snesor, and controls described load cylinder.
(3) beneficial effect
The experiment loading unit of fuel motor train unit under-train fuel tank provided by the invention, has following beneficial effect:
(1) using load cylinder to load, loading without the need to manually moving counterweight, can repeatedly repeat at short notice to load, loading velocity is fast, improves test efficiency, reduces manual operation cost, reduces dangerous;
(2) be loaded into the uniform load of pilot region, solve the problem that prior art adopts the loading of artificial counterweight loading generation uneven;
(3) position loaded is consistent with the center of fuel tank, and loading area is accurate, improves load mass, guarantees the accuracy of experimental data;
(4) do not need manually to move counterweight to load, only need simply to install, the foil gauge, data line etc. for image data can not be damaged.
Accompanying drawing explanation
Fig. 1 is vertical view of the present invention;
Fig. 2 is the cut-open view along A-A direction in Fig. 1;
Fig. 3 is the enlarged drawing of I part in Fig. 2;
Fig. 4 is the cut-open view along B-B direction in Fig. 1.
In figure, 1: column; 2: crossbeam; 3: simulated oil cabinet frame; 4: connecting plate; 5: connecting rod; 6: reaction plate; 7: load cylinder; 8: force snesor; 9: load plate; 10: buttress brace; 31: hook; 61: through hole.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
As shown in Figures 1 to 4, the experiment loading unit of fuel motor train unit under-train fuel tank of the present invention, comprise: load plate 9, load cylinder 7, force snesor 8, simulated oil cabinet frame 3 and reaction frame, simulated oil cabinet frame 3 is provided with four hooks 31, and simulated oil cabinet frame 3 is fixedly mounted on the fuel tank mounting base of car body by hook 31.Reaction frame comprises support body and reaction plate 6, and support body is fixed on testing table, and reaction plate 6 is located on support body; Load plate 9 is arranged on the lower position of reaction plate 6, and is connected with simulated oil cabinet frame 3 by coupling assembling; Load cylinder 7 is placed in load plate 9, and between load plate 9 and reaction plate 6; Force snesor 8 is arranged between load cylinder 7 and load plate 9.Force snesor 8 is placed on the upper surface of load plate 9, and load cylinder 7 is arranged on the upper surface with force snesor 8, and load cylinder 7 is between load plate 9 and reaction plate 6.When carrying out load test, the piston axle top pressure reaction plate 6 of load cylinder 7, form a counter-force effect for load plate 9, load plate 9 pulls down dynamic simulated fuel tank framework 3, makes the pulling force of simulated oil cabinet frame 3 pairs of car bodies identical with the tension distribution of fuel tank to car body.
Further, this experiment loading unit also comprises load control element (scheming not shown), and load control element is connected with force snesor 8 and load cylinder 7 respectively, the signal that reception sensor 8 sends, and controlled loading oil cylinder 7.In the process of carrying out load test, force snesor 8 detects load, and change into signal, send to load control element, load control element continues to load or stop to load according to the programmed control load cylinder of setting, thus the size of controlled loading load, prevent the too fast loading of load, also prevent undue loaded load, make test failure.
Further, support body comprises column 1 and crossbeam 2, and the lower end of column 1 is fixed on testing table, and crossbeam 2 is located at the upper end of column 1, and reaction plate 6 is located on crossbeam 2.Column 1 is four, crossbeam 2 is two, four root posts 1 are with the directional spreding of rectangle, and the lower end of column 1 is fixed in the pickup groove of track both sides of testing table, and crossbeam 2 is erected at the upper end of column 1, and two crossbeams 2 are parallel to each other, reaction plate 6 is across being arranged on crossbeam 2, and preferably, reaction plate 6 is arranged on the center of crossbeam 2, make four columns 1 at the trial, uniform force.
Further, coupling assembling comprises connecting plate 4 and connecting rod 5, and connecting plate 4 is arranged in simulated oil cabinet frame 3, and is positioned at the centre of gravity place of simulated oil cabinet frame 3, and connecting rod 5 connects load plate 9 and connecting plate 4.Connecting rod 5 is two, and the upper end of two connecting rods 5 is arranged on connecting plate 4 by bolt, and symmetrical along the center of gravity of simulated oil cabinet frame 3.Reaction plate 6 is provided with through hole 61, and the diameter of through hole 61 is greater than the diameter of connecting rod 5, and connecting rod 5 is located in through hole 61.Preferably, through hole 61 is long slot bore, connecting rod 5 can be slided along the length direction of through hole 61, guarantee the accurate of installation site, improves the degree of accuracy of test.Connecting rod 5 is adjustable leading screw, and the upper end of leading screw, through the through hole 61 of reaction plate 6, connecting plate 5 is provided with mounting hole, and uses nut to be arranged on by leading screw on the mounting hole of connecting plate 4; Load plate 9 is provided with mounting hole, and the lower end of leading screw is arranged on load plate 9 mounting hole by nut, and when needing to regulate the distance between load plate 9 and reaction plate 5, twisting nut regulates, and makes charger have better applicability.
Further, buttress brace 10 is provided with between column 1 and crossbeam 2.Improved the intensity of support body by buttress brace 10, ensure the stability loaded.
When using this experiment loading unit, start-up loading oil cylinder, make the piston rod of load cylinder increase, top pressure reaction plate, under counter-force effect, load cylinder pushes up pressure load plate downwards, load plate is moved down, and load plate pulls the connecting plate be arranged in simulated oil cabinet frame by connecting plate, makes simulated oil cabinet frame be subject to drop-down load, until when the load that is subject to of simulated oil cabinet frame is identical with fuel tank weight, stop loading.In loading procedure, the real-time load be subject to by force snesor detection simulated oil cabinet frame, is sent to load control element, by the size of load control element controlled loading load, prevents the too fast loading of load, also prevent excessive loads simultaneously.
This experiment loading unit structure is simple, is convenient to installation and removal, easy to use, load accurately quick, can carry out repeated loading to fuel tank overhang region under car at short notice, accurately ensure that loading centre of gravity place is positioned at loading area center, loading accuracy is high, reproducible.Use hydraulic loaded mode, make loading even, the scope of loading can regulable control rapidly, without load of suddenling change.Damage can not be caused to the equipment of stress collection point each in loading area, be convenient to detect and gather.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an experiment loading unit for fuel motor train unit under-train fuel tank, is characterized in that, comprising: load plate, load cylinder, force snesor, simulated oil cabinet frame and reaction frame, and described simulated oil cabinet frame is fixedly mounted on the fuel tank mounting base of car body; Described reaction frame comprises support body and reaction plate, and described support body is fixed on testing table, and described reaction plate is located on support body; Described load plate is arranged on the lower position of described reaction plate, and is connected with described simulated oil cabinet frame by coupling assembling; Described load cylinder is placed in described load plate, and between described load plate and described reaction plate; Described force snesor is located between described load cylinder and described load plate.
2. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 1, it is characterized in that, described support body comprises column and crossbeam, and the lower end of described column is fixed on testing table, described crossbeam is located at the upper end of described column, and described reaction plate is located on crossbeam.
3. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 1, it is characterized in that, described coupling assembling comprises connecting plate and connecting rod, and described connecting plate is arranged in described simulated oil cabinet frame; Described connecting rod connects described load plate and described connecting plate.
4. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 3, it is characterized in that, described reaction plate is provided with through hole, and described connecting rod is located in described through hole.
5. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 4, it is characterized in that, described through hole is long slot bore.
6. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 3, it is characterized in that, described connecting rod is adjustable leading screw.
7. the experiment loading unit of fuel motor train unit under-train fuel tank as claimed in claim 2, is characterized in that, be provided with buttress brace between described column and described crossbeam.
8. the experiment loading unit of the fuel motor train unit under-train fuel tank as described in any one of claim 1 to 7, it is characterized in that, this charger also comprises a load control element, described load control element is connected with described force snesor and load cylinder respectively, receive the signal of described force snesor, and control described load cylinder.
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| CN201310625343.2A CN103674581B (en) | 2013-11-29 | 2013-11-29 | The experiment loading unit of fuel motor train unit under-train fuel tank |
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| CN201310625343.2A CN103674581B (en) | 2013-11-29 | 2013-11-29 | The experiment loading unit of fuel motor train unit under-train fuel tank |
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| CN103674581A CN103674581A (en) | 2014-03-26 |
| CN103674581B true CN103674581B (en) | 2015-12-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706570A (en) * | 2012-06-04 | 2012-10-03 | 唐山轨道客车有限责任公司 | Simulation test device for pneumatic load of vehicle body |
| CN103048149A (en) * | 2012-09-18 | 2013-04-17 | 吉林大学 | Parameter determining test bed for gantry framework type rail vehicle bogie |
| CN203616149U (en) * | 2013-11-29 | 2014-05-28 | 南车青岛四方机车车辆股份有限公司 | Test loading device for below-train fuel tank of fuel motor train unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100946322B1 (en) * | 2008-08-29 | 2010-03-08 | 한국기계연구원 | A journal union construction of a load-testing apparatus for a train bogie frame |
| JP2011089958A (en) * | 2009-10-26 | 2011-05-06 | Tokyu Car Corp | Method for measuring height of center of gravity |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706570A (en) * | 2012-06-04 | 2012-10-03 | 唐山轨道客车有限责任公司 | Simulation test device for pneumatic load of vehicle body |
| CN103048149A (en) * | 2012-09-18 | 2013-04-17 | 吉林大学 | Parameter determining test bed for gantry framework type rail vehicle bogie |
| CN203616149U (en) * | 2013-11-29 | 2014-05-28 | 南车青岛四方机车车辆股份有限公司 | Test loading device for below-train fuel tank of fuel motor train unit |
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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. |