CN102331352A - Dumper frame unloading process simulation test method - Google Patents
Dumper frame unloading process simulation test method Download PDFInfo
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- CN102331352A CN102331352A CN201110150081A CN201110150081A CN102331352A CN 102331352 A CN102331352 A CN 102331352A CN 201110150081 A CN201110150081 A CN 201110150081A CN 201110150081 A CN201110150081 A CN 201110150081A CN 102331352 A CN102331352 A CN 102331352A
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Abstract
The invention provides a dumper frame unloading process simulation test method, aiming at solving the problems of the prior art that the stress and deformation situations of a dumper frame in an unloading process cannot be detected and the like. In the dumper frame unloading process simulation test method disclosed by the invention, a frame to be tested is fixed on a test bed, various stress situations of the dumper frame in the unloading process are simulated, the stress and deformation situations of the tested frame are detected, and whether the simulated unloading test of the tested frame is qualified or not is judged according to whether the tested frame is damaged within formulated loading times. The dumper frame unloading process simulation test method disclosed by the invention has the beneficial technical effects that various stress situations, deformation trends and fatigue life of the dumper frame in the unloading process can be simulated on an indoor test bed, problems and defects of the dumper frame can be exposed and found on the test bed, the test period is shortened, the research and development cost is reduced, and data and experience are accumulated for the development of novel dumper types.
Description
Invention field
The present invention relates to dumper vehicle frame uninstall process simulation experiment method, specially refer to preposition lifting dumper vehicle frame uninstall process simulation experiment method.
Background technology
The dumper vehicle frame need bear bigger comprehensively stressed in uninstall process, comprising: bending force, tensile force and torsion or the like, and because the loading and unloading of dumper are very frequent, also be one of the key factor that must consider its fatigue lifetime.At present, in the research and development process of dumper vehicle frame, to the force analysis and the analysis of Fatigue-life of dumper vehicle frame, mainly rule of thumb perhaps computer simulation combines user's operating position to verify again.Such analysis mode can't detect dumper vehicle frame actual loading situation, distortion situation and fatigue lifetime in uninstall process except data accuracy is relatively poor.
Summary of the invention
Can't detect dumper vehicle frame problems such as stressed and distortion situation in uninstall process for overcoming prior art, the present invention proposes a kind of dumper vehicle frame uninstall process simulation experiment method.Dumper vehicle frame uninstall process simulation experiment method of the present invention may further comprise the steps:
⑴ fixing with place, the centre of support, rear end of vehicle frame to be tested, about forbidding, about and the displacement of three directions in front and back; The place, front end centre of support of vehicle frame to be tested is adopted the placement of sliding support; Place, said front end centre of support is meant front axle centre, the centre position of perhaps last bridge center and the first two bridge line of centres; Centre of support, said rear end is meant back axle center or balancing shaft center, perhaps the centre position of the jackshaft center and the back axle line of centres;
⑵ every interval 300mm-600mm installs 1 displacement transducer in the lower aerofoil centre of vehicle frame one side girder to be tested, and 6 to 15 displacement transducers are installed altogether; Spacing between the displacement transducer is not equidistance setting;
⑶ measure at the longeron of frame assembly to be tested or the stressed concentrated place erection stress sensor counter stress value of crossbeam, and strain gauge quantity is 6 to 15; Said stressed concentrated place comprises: terminal bolt junction, overhanging beam junction, balancing shaft crossbeam middle part upside, upside bolt junction, balancing shaft crossbeam rear end, transom beam upside, transom beam downside behind hanger place, crossbeam arch place, the crossbeam behind the inboard center of front beam place vehicle frame aerofoil, variator crossbeam, variator crossbeam junction, the preceding spring;
⑷ respectively install a steel plate that rigidity is bigger at vehicle frame container to be tested lifting device place and container turnover hinge place, and the size of steel plate is not less than long by 900, wide 400mm, and thickness is not less than 35mm; Adopt hydraulic cylinder to apply maximal value and be respectively F in the center of two block plates
CylinderAnd F
Cycle dynamic loading vertically downward; Said cycle dynamic loading be meant official hour in the cycle load value from maximal value vanishing and the load that repeats to apply; Said F
CylinderAnd F
Refer to the power that container lifting device place and container turnover hinge are in the uninstall process to be born respectively, its value is respectively 1.2 to 1.6 times and 1.3 to 1.8 times of specified pay load;
⑸ write down displacement and the stress of vehicle frame to be tested under the cycle dynamic load effect, obtains testing result; And if in the loading cycle number of times of regulation, vehicle frame to be tested does not have breakage, judges that then vehicle frame simulation unloading experiment to be tested is qualified; Otherwise, be judged to be defective; Said loading cycle number of times is 250,000 to 350,000 times.
The useful technique effect of dumper vehicle frame uninstall process simulation experiment method of the present invention is on the shop experiment stand, to simulate various stressing conditions, deformation tendency and the fatigue lifetime of dump Truck Frame in uninstall process; Can make dumper vehicle frame exposure problem, discovery defective on experiment table; Shortened the test period; Reduce R&D costs, be the exploitation accumulation data and the experience of new model.
Description of drawings
Accompanying drawing 1 is dumper vehicle frame uninstall process of the present invention simulation experiment method vehicle frame to be tested fixed position and loading position synoptic diagram;
Accompanying drawing 3 is arrangement synoptic diagram of dumper vehicle frame uninstall process simulation experiment method strain gauge of the present invention.
Below in conjunction with accompanying drawing and specific embodiment dumper vehicle frame uninstall process simulation experiment method of the present invention is further described.
Embodiment
Accompanying drawing 1 is dumper vehicle frame uninstall process of the present invention simulation experiment method vehicle frame to be tested fixed position and loading position synoptic diagram; Among the figure, A is vehicle frame front end to be tested centre of support, and B is centre of support, vehicle frame to be tested rear end; C is the jackshaft center line; D is the back axle center line, and E is container turnover hinge place, and G is container lifting device place.Can know that by figure the first step of dumper vehicle frame uninstall process simulation experiment method of the present invention is that the B of place, the centre of support, rear end of vehicle frame to be tested is fixed, about forbidding, about and the displacement of three directions in front and back; The A of place, front end centre of support of vehicle frame to be tested is adopted the placement of sliding support; Place, said front end centre of support is meant front axle centre, the centre position of perhaps last bridge center and the first two bridge line of centres; Centre of support, said rear end is meant back axle center or balancing shaft center, perhaps the centre position of the jackshaft center and the back axle line of centres.In the embodiment shown in the accompanying drawing 1, place, front end centre of support is the centre position of last bridge center and the first two bridge line of centres, and the centre of support, rear end is the centre position of the jackshaft center and the back axle line of centres.
Accompanying drawing 2 is arrangement synoptic diagram of dumper vehicle frame uninstall process simulation experiment method displacement transducer of the present invention, and A is the front end center of effort of vehicle frame to be tested, and B is the rear end center of effort of vehicle frame to be tested, and numbering is 1. to the placement location that 10. is meant displacement transducer.Can know by figure; Second step of dumper vehicle frame uninstall process simulation experiment method of the present invention is that every interval 300mm-600mm installs 1 displacement transducer in the lower aerofoil centre of frame assembly one side girder to be tested; 6 to 15 displacement transducers are installed altogether, and the spacing between the displacement transducer is not equidistance setting.What need special instruction is that shown in the partial enlarged drawing on accompanying drawing 2 tops, displacement transducer is installed in the centre of the lower aerofoil of longeron.10 displacement transducers have been installed in the embodiment shown in the accompanying drawing 2 altogether.
Accompanying drawing 3 is arrangement synoptic diagram of dumper vehicle frame uninstall process simulation experiment method strain gauge of the present invention; Numbering 1 to 11 is meant the placement location of strain gauge among the figure; Can know by figure; The third step of dumper vehicle frame uninstall process simulation experiment method of the present invention is that erection stress sensor counter stress value is measured at the stressed concentrated place of the longeron of frame assembly to be tested or crossbeam, and strain gauge quantity is 6 to 15; Said stressed concentrated place comprises: terminal bolt junction 6, overhanging beam junction 7, balancing shaft crossbeam middle part upside 8, upside bolt junction, balancing shaft crossbeam rear end 9, transom beam upside 10, transom beam downside 11 behind hanger place 4, crossbeam arch place 5, the crossbeam behind the inboard center 2 of front beam place vehicle frame aerofoil 1, variator crossbeam, variator crossbeam junction 3, the preceding spring.
When loading for assurance; Vehicle frame to be tested is stressed evenly; Dumper vehicle frame uninstall process simulation experiment method of the present invention need respectively be installed a steel plate (referring to accompanying drawing 1) that rigidity is bigger at vehicle frame container lifting device G of place to be tested and the container turnover hinge E of place before loading; The size of steel plate is not less than long by 900, wide 400mm, and thickness is not less than 35mm.Then, adopt hydraulic cylinder to apply maximal value and be respectively F in the center of two block plates
CylinderAnd F
Cycle dynamic loading vertically downward (referring to accompanying drawing 1); Said cycle dynamic loading be meant official hour in the cycle load value from maximal value vanishing and the load that repeats to apply; Said F
CylinderAnd F
Refer to the power that container lifting device place and container turnover hinge are in the uninstall process to be born respectively, the 1.2-1.6 that its value is respectively specified pay load doubly with 1.3-1.8 times.This step is the 4th step of dumper vehicle frame uninstall process simulation experiment method of the present invention.
The 5th step of dumper vehicle frame uninstall process simulation experiment method of the present invention obtains testing result for the displacement and the stress of record vehicle frame to be tested under the cycle dynamic load effect; And if in the loading cycle number of times of regulation, vehicle frame to be tested does not have breakage, judges that then vehicle frame simulation unloading experiment to be tested is qualified; Otherwise, be judged to be defective; Said loading cycle number of times is 250,000 to 350,000 times.
The useful technique effect of dumper vehicle frame uninstall process simulation experiment method of the present invention is on the shop experiment stand, to simulate various stressing conditions, deformation tendency and the fatigue lifetime of dump Truck Frame in uninstall process; Can make dumper vehicle frame exposure problem, discovery defective on experiment table; Shortened the test period; Reduce R&D costs, be the exploitation accumulation data and the experience of new model.
Claims (1)
1. dumper vehicle frame uninstall process simulation experiment method,, it is characterized in that: this simulation experiment method may further comprise the steps:
⑴ fixing with place, the centre of support, rear end of vehicle frame to be tested, about forbidding, about and the displacement of three directions in front and back; The place, front end centre of support of vehicle frame to be tested is adopted the placement of sliding support; Place, said front end centre of support is meant front axle centre, the centre position of perhaps last bridge center and the first two bridge line of centres; Centre of support, said rear end is meant back axle center or balancing shaft center, perhaps the centre position of the jackshaft center and the back axle line of centres;
⑵ every interval 300mm-600mm installs 1 displacement transducer in the lower aerofoil centre of vehicle frame one side girder to be tested, and 6 to 15 displacement transducers are installed altogether; Spacing between the displacement transducer is not equidistance setting;
⑶ measure at the longeron of frame assembly to be tested or the stressed concentrated place erection stress sensor counter stress value of crossbeam, and strain gauge quantity is 6 to 15; Said stressed concentrated place comprises: terminal bolt junction, overhanging beam junction, balancing shaft crossbeam middle part upside, upside bolt junction, balancing shaft crossbeam rear end, transom beam upside, transom beam downside behind hanger place, crossbeam arch place, the crossbeam behind the inboard center of front beam place vehicle frame aerofoil, variator crossbeam, variator crossbeam junction, the preceding spring;
⑷ respectively install a steel plate that rigidity is bigger at vehicle frame container to be tested lifting device place and container turnover hinge place, and the size of steel plate is not less than long by 900, wide 400mm, and thickness is not less than 35mm; Adopt hydraulic cylinder to apply maximal value and be respectively F in the center of two block plates
CylinderAnd F
Cycle dynamic loading vertically downward; Said cycle dynamic loading be meant official hour in the cycle load value from maximal value vanishing and the load that repeats to apply; Said F
CylinderAnd F
Refer to the power that container lifting device place and container turnover hinge are in the uninstall process to be born respectively, its value is respectively 1.2 to 1.6 times and 1.3 to 1.8 times of specified pay load;
⑸ write down displacement and the stress of vehicle frame to be tested under the cycle dynamic load effect, obtains testing result; And if in the loading cycle number of times of regulation, vehicle frame to be tested does not have breakage, judges that then vehicle frame simulation unloading experiment to be tested is qualified; Otherwise, be judged to be defective; Said loading cycle number of times is 250,000 to 350,000 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110150081 CN102331352B (en) | 2011-06-07 | 2011-06-07 | Dumper frame unloading process simulation test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110150081 CN102331352B (en) | 2011-06-07 | 2011-06-07 | Dumper frame unloading process simulation test method |
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| CN102331352A true CN102331352A (en) | 2012-01-25 |
| CN102331352B CN102331352B (en) | 2013-02-20 |
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| CN 201110150081 Active CN102331352B (en) | 2011-06-07 | 2011-06-07 | Dumper frame unloading process simulation test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762984A (en) * | 2016-12-30 | 2017-05-31 | 龙工(上海)液压有限公司 | The test-bed and test method of a kind of multistage hydraulic cylinder simulation operating mode |
| CN117347024A (en) * | 2023-10-09 | 2024-01-05 | 济南润成信德机械制造有限公司 | Heavy truck frame bearing capacity detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9821140D0 (en) * | 1998-09-29 | 1998-11-25 | Arc Ltd | Self raising hopper for delivering aggregate |
| CN201000389Y (en) * | 2007-01-31 | 2008-01-02 | 东风汽车有限公司 | Automobile frame torsion test stand |
| DE102007044183A1 (en) * | 2007-09-15 | 2009-04-02 | Eugen Lieke | Unloading device for lorry, has loading material support including opened sections or surfaces, where shape of support corresponds to partial or sectionally closed and/or partially opened pouch or bag or mesh |
| CN201357781Y (en) * | 2009-02-12 | 2009-12-09 | 南车眉山车辆有限公司 | Dump truck cargo body |
| CN202188960U (en) * | 2011-07-23 | 2012-04-11 | 长城汽车股份有限公司 | Vehicle frame rigidity test bed |
-
2011
- 2011-06-07 CN CN 201110150081 patent/CN102331352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9821140D0 (en) * | 1998-09-29 | 1998-11-25 | Arc Ltd | Self raising hopper for delivering aggregate |
| GB2342092A (en) * | 1998-09-29 | 2000-04-05 | Arc Ltd | Tipping heated hopper for bituminous aggregate |
| CN201000389Y (en) * | 2007-01-31 | 2008-01-02 | 东风汽车有限公司 | Automobile frame torsion test stand |
| DE102007044183A1 (en) * | 2007-09-15 | 2009-04-02 | Eugen Lieke | Unloading device for lorry, has loading material support including opened sections or surfaces, where shape of support corresponds to partial or sectionally closed and/or partially opened pouch or bag or mesh |
| CN201357781Y (en) * | 2009-02-12 | 2009-12-09 | 南车眉山车辆有限公司 | Dump truck cargo body |
| CN202188960U (en) * | 2011-07-23 | 2012-04-11 | 长城汽车股份有限公司 | Vehicle frame rigidity test bed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762984A (en) * | 2016-12-30 | 2017-05-31 | 龙工(上海)液压有限公司 | The test-bed and test method of a kind of multistage hydraulic cylinder simulation operating mode |
| CN117347024A (en) * | 2023-10-09 | 2024-01-05 | 济南润成信德机械制造有限公司 | Heavy truck frame bearing capacity detection device |
| CN117347024B (en) * | 2023-10-09 | 2024-05-10 | 济南润成信德机械制造有限公司 | Heavy truck frame bearing capacity detection device |
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| CN102331352B (en) | 2013-02-20 |
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Address after: 401122 No.1, huanghuan North Road, Jinshan Avenue, northern New District, Yubei District, Chongqing Patentee after: SAIC Hongyan Automobile Co.,Ltd. Address before: 401122 No.1, huanghuan North Road, Jinshan Avenue, northern New District, Yubei District, Chongqing Patentee before: SAIC-IVECO HONGYAN commercial Vehicle Co.,Ltd. |
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