CN203786973U - Equivalent experiment table of coplanar concurrent force system - Google Patents
Equivalent experiment table of coplanar concurrent force system Download PDFInfo
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- CN203786973U CN203786973U CN201420134865.2U CN201420134865U CN203786973U CN 203786973 U CN203786973 U CN 203786973U CN 201420134865 U CN201420134865 U CN 201420134865U CN 203786973 U CN203786973 U CN 203786973U
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Abstract
An equivalent experiment table of a coplanar concurrent force system is composed of a plurality of groups of shafts, pulleys, ropes, spring balances, weight disks, weights, a dial, a base, and the like. The ropes are fixed on a disk shaft, and the disk shaft is fixed on the dial. The ropes are concentric with the dial. A rope II positioning ring fixes the rope II on the dial to enable the extending line of the rope II to be on the zero point of the scales of the dial. A shaft fixed on the base and the pulleys are fixed by nuts. One rope is connected to the base after bypassing the pulleys to be connected with the spring balances. The other rope bypasses the pulleys to be connected with the weight disks and the weights. Gravity is applied on the ropes, and gravity values are obtained from the spring balances after balance stabilization. The rope bypasses the pulleys to be connected with the weight disks and the weights so as to obtain the included angle under a new balanced state, namely, the condition for force equivalence and replacement, force composition and force component under a complex coplanar concurrent force system, to verify the parallelogram law.
Description
Technical field
The invention belongs to the technical field of statics research in high school physics in education sector, college mechanics class course and engineering design and structure analysis, being particularly related to a kind of power is, that is: each line of force is in same plane and intersect at the equivalence conversion of the power system (being called plane concurrent force system) of a bit, as: in one plane, the equipment that under multiple condition, junction resolution of force and synthetic, equivalence and alternative inspection are tested.
Background technology
Each line of force in same plane and the power system that intersects at any be called plane concurrent force system.Plane concurrent force system be the most simply, the most basic power system.The solution approach of theoretical mechanics midplane concurrent force system has two kinds: i.e. geometric method and analytical method.The equivalent experiment platform of plane concurrent force system be a kind of in a plane various conditions, as: coincidences of production line extended line, two power, three power and many power cross any etc. detect a kind of experiment table of stress balance condition in situation.In research and probe concurrent force system equilibrium condition, utilize equilibrium condition to ask in the design and analysis process of unknown force and new construction, be also a kind of indispensable important Authentication devices.In high school physics, there are the spring balance of use and the size of cord ergometry and the simple replication experiment mode of direction at present; In structural mechanics, check the use equipment of truss stress deformation amount; And in engineering mechanics experiment, be mostly to measure the use equipment of material mechanical performance, not yet find research and application to its stressed character, equivalent analysis, decomposition and synthetic machinery and equipment of carrying out original reason experiment.And the present invention based on many kinds of force in a plane junction a bit, designability is created the equivalent experiment equipment of the plane concurrent force system that junction resolution of force under multiple condition and synthetic, equivalence and alternative inspection test.
Summary of the invention
The object of this invention is to provide an a kind of plane concurrent force system of building by spring balance, weight, pulley and index dial, completing diverse location applies similar and different load, settles spring balance to measure component in different angles, and angular relationship between different ropes, thereby equilibrium condition and the equivalent action of checking plane concurrent force system, by means of the value of the actual power of applying of plane concurrent force system, angle between spring balance measured value and each rope, reach the effect of checking parallelogram law, the experimental provision of stress condition in detection architecture.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of equivalent experiment platform of plane concurrent force system, it is characterized in that: rope I 5, rope II 13, rope III 40, rope IV 41, rope V 42, rope VI 43 and rope VII 62 are fixed on dish axle 10, dish axle 10 is fixed on index dial 9, make rope concentric with index dial 9, rope II locating ring 11 stationary rope II 13, at index dial 9, make the extended line of rope II 13 on the zero point of index dial scale 44; By nut I 7 fixed block I 6, in axle I 8, by axle I hold-down nut 48 stationary shaft I 8, on pedestal 2, rope I 5, after pulley I 6 linking springs scale I 4, connects height regulating ring I 3 and is connected with hook I 1, and hook I 1 is on pedestal 2; By nut II 17 fixed block II 16 in axle II 18, by axle II hold-down nut 45 stationary shaft II 18 on pedestal 2, rope II 13 connects scale pan I 27 around pulley II 16, counterweight I 28 is placed in scale pan I 27, to rope II 13 weight applications, after stable equilibrium, in spring balance I 4, obtain gravity value; Rope III 40 is after pulley III 35 linking springs scale II 29, connecting height regulating ring II 30 is connected with hook II 31, hook II 31 is fixed on pedestal 2, adjust height regulating ring II 30 length, make rope III 40 tensions, original balance between two forces becomes three power concurrent force systems, reach after new balance, read spring balance I 4 and spring balance II 29 is worth, record rope III 40 and rope II 13, rope I 5 and the angle of rope II 13 under new equilibrium state, obtain a pulling force, two points of equilibrium of forces, checking parallelogram law.
2. according to front a kind of equivalent experiment platform of measuring a kind of plane concurrent force system described in structure, it is characterized in that: rope III (40) connects scale pan II (51) around pulley III (35), puts into counterweight II (52), form the second and measure structure.
3. according to front a kind of equivalent experiment platform of measuring a kind of plane concurrent force system described in structure, it is characterized in that: rope IV (41) connects scale pan III (53) around pulley I (6), puts into counterweight III (54), form the third and measure structure.
4. according to front a kind of equivalent experiment platform of measuring a kind of plane concurrent force system described in structure, it is characterized in that: rope IV (41) is after pulley IV (59) linking springs scale III (56), connecting height regulating ring III (55) is connected with hook IV (37), hook IV (37) is fixed on pedestal (2), adjust height regulating ring III (55) length, make rope IV (41) tension, rope VI (43) connects scale pan III (53) around pulley I (6), put into counterweight III (54), form the 4th kind and measure structure.
5. according to front a kind of equivalent experiment platform of measuring a kind of plane concurrent force system described in structure, it is characterized in that: rope VII (62) connects scale pan IV (61) around pulley V (65), puts into counterweight IV (62), forms the 5th kind of measurement structure.
Beneficial effect of the present invention: connect after pulley I-V by axle I-V, fixing between pilot hole I-X IV, rope I-VII is difference linking springs scale or weight after corresponding pulley respectively, verify power in the same way, opposite force, the plane concurrent force system component of other complex condition and the equivalence of making a concerted effort, by reading spring balance value, counterbalance mass and measuring between rope under actual operating conditions and the angle of rope II, obtain in complicated plane concurrent force system situation, the equivalence of power and replacement, make a concerted effort and the condition of component, further checking parallelogram law.
brief description of the drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is a kind of topology view that converts experiment condition of Fig. 1;
Fig. 4 is the topology view of the second conversion experiment condition of Fig. 1;
Fig. 5 is the topology view of the third conversion experiment condition of Fig. 1;
Fig. 6 is the topology view of the 4th kind of conversion experiment condition of Fig. 1.
In figure: 1. hook I, 2. pedestal, 3. height regulating ring I, 4. spring balance I, 5. rope I, 6. pulley I, 7. nut I, 8. axle I, 9. index dial, 10. dish axle, 11. rope II locating rings, 12. pilot hole I, 13. rope II, 14. pilot hole II, 15. pilot hole III, 16. pulley II, 17. nut II, 18. axle II, 19. pilot hole IV, 20. pilot hole V, 21. pilot hole VI, 22. pilot hole VII, 23. pilot hole VIII, 24. pilot hole X, 25. pilot hole XI, 26. pilot hole XII, 27. scale pan I, 28. counterweight I, 29. spring balance II, 30. height regulating ring II, 31. hook II, 32. axle III, 33. nut III, 34. hook III, 35. pulley III, 36. pilot hole X III, 37. hook IV, 38. pilot hole IX, 39. pilot hole X IV, 40. rope III, 41. rope IV, 42. rope V, 43. rope VI, 44. index dial scales, 45. axle II hold-down nuts, 46. dish axle hold-down nuts, 47. position of positioning hole I, 48. axle I hold-down nuts, 49. position of positioning hole II, 50. axle III hold-down nuts, 51. scale pan II, 52. counterweight II, 53. scale pan III, 54. counterweight III, 55. height regulating ring III, 56. spring balance III, 57. axle IV, 58. axle IV hold-down nuts, 59. pulley IV, 60. counterweight IV, 61. scale pan IV, 62. rope VII, 63. axle V hold-down nuts, 64. axle V, 65. pulley V
embodiment:
Below in conjunction with drawings and Examples, the present invention is further described.
A kind of equivalent experiment platform of plane concurrent force system, as shown in Figure 1-2, it is characterized in that: rope I 5, rope II 13, rope III 40, rope IV 41, rope V 42, rope VI 43 and rope VII 62 are fixed on dish axle 10, dish axle 10 is fixed on index dial 9, make rope concentric with index dial 9, rope II locating ring 11 stationary rope II 13, at index dial 9, make the extended line of rope II 13 on the zero point of index dial scale 44; By nut I 7 fixed block I 6, in axle I 8, by axle I hold-down nut 48 stationary shaft I 8, on pedestal 2, rope I 5, after pulley I 6 linking springs scale I 4, connects height regulating ring I 3 and is connected with hook I 1, and hook I 1 is on pedestal 2; By nut II 17 fixed block II 16 in axle II 18, by axle II hold-down nut 45 stationary shaft II 18 on pedestal 2, rope II 13 connects scale pan I 27 around pulley II 16, counterweight I 28 is placed in scale pan I 27, to rope II 13 weight applications, after stable equilibrium, in spring balance I 4, obtain gravity value; Rope III 40 is after pulley III 35 linking springs scale II 29, connecting height regulating ring II 30 is connected with hook II 31, hook II 31 is fixed on pedestal 2, adjust height regulating ring II 30 length, make rope III 40 tensions, original balance between two forces becomes three power concurrent force systems, reach after new balance, read spring balance I 4 and spring balance II 29 is worth, record rope III 40 and rope II 13, rope I 5 and the angle of rope II 13 under new equilibrium state, obtain a pulling force, two points of equilibrium of forces, checking parallelogram law.
According to front a kind of equivalent experiment platform of measuring a kind of plane concurrent force system described in structure, as shown in Figure 3, it is characterized in that: rope III 40 connects scale pan II 51 around pulley III 35, put into counterweight II 52, reach after new balance, read spring balance I 4 and be worth, record rope III 40 and rope II 13, rope I 5 and the angle of rope II 13 under new equilibrium state, obtain two pulling force, one is closed equilibrium of forces, checking parallelogram law.
According to the equivalent experiment platform of a kind of plane concurrent force system described in first two measurement structure, as shown in Figure 4, it is characterized in that: rope IV 41 connects scale pan III 53 around pulley I 6, put into counterweight III 54, reach after new balance, reading spring balance I 4 is worth, record rope III 40 and rope II 13, rope I 5 and the angle of rope II 13 under new equilibrium state, obtain three pulling force, one is closed equilibrium of forces, one of them pulling force with make a concerted effort in the same way, checking parallelogram law.
According to the equivalent experiment platform of a kind of plane concurrent force system described in first three kind measurement structure, as shown in Figure 5, it is characterized in that: rope IV 41 is after pulley IV 59 linking springs scale III 56, connecting height regulating ring III 55 is connected with hook IV 37, hook IV 37 is fixed on pedestal 2, adjust height regulating ring III 55 length, make rope IV 41 tensions, rope VI 43 connects scale pan III 53 around pulley I 6, put into counterweight III 54, reach after new balance, read spring balance I 4 and spring balance III 56 is worth, record rope I 5, rope III 40, rope IV 41 and rope VI 43 respectively with the angle of rope II 13 under new equilibrium state, obtain three pulling force, two are closed equilibrium of forces, one of them pulling force with make a concerted effort in the same way, checking parallelogram law.
According to the equivalent experiment platform of a kind of plane concurrent force system described in front four kinds of measurement structures, as shown in Figure 6, it is characterized in that: rope VII 62 connects scale pan IV 61 around pulley V 65, put into counterweight IV 62, reach after new balance, read spring balance I 4 and spring balance III 56 is worth, record rope I 5, rope III 40, rope IV 41, rope VI 43 and rope VII 62 respectively with the angle of rope II 13 under new equilibrium state, obtain four pulling force, two are closed equilibrium of forces, one of them pulling force with make a concerted effort in the same way, checking parallelogram law.
Claims (2)
1. the equivalent experiment platform of a plane concurrent force system, it is characterized in that: rope I (5), rope II (13), rope III (40), rope IV (41), rope V (42), rope VI (43) and rope VII (62) are fixed on dish axle (10), dish axle (10) is fixed on index dial (9), make rope concentric with index dial (9), rope II locating ring (11) stationary rope II (13), in index dial (9), makes the extended line of rope II (13) on the zero point of index dial scale (44), by nut I (7) fixed block I (6) in axle I (8), by axle I hold-down nut (48) stationary shaft I (8) on pedestal (2), rope I (5) is after pulley I (6) linking springs scale I (4), connect height regulating ring I (3) and be connected with hook I (1), hook I (1) is on pedestal (2), by nut II (17) fixed block II (16) in axle II (18), by axle II hold-down nut (45) stationary shaft II (18) on pedestal (2), rope II (13) connects scale pan I (27) around pulley II (16), counterweight I (28) is placed in scale pan I (27), to rope II (13) weight application, after stable equilibrium, in the upper gravity value that obtains of spring balance I (4), rope III (40) is after pulley III (35) linking springs scale II (29), connecting height regulating ring II (30) is connected with hook II (31), hook II (31) is fixed on pedestal (2), adjust height regulating ring II (30) length, make rope III (40) tension, original balance between two forces becomes three power concurrent force systems, reach after new balance, read spring balance I (4) and spring balance II (29) value, record rope III (40) and rope II (13), rope I (5) and the angle of rope II (13) under new equilibrium state, obtain a pulling force, two points of equilibrium of forces, checking parallelogram law.
2. the equivalent experiment platform of a kind of plane concurrent force system according to claim 1, is characterized in that: rope III (40) connects scale pan II (51) around pulley III (35), puts into counterweight II (52), forms the second and measures structure.
3. the equivalent experiment platform of a kind of plane concurrent force system according to claim 2, is characterized in that: rope IV (41) connects scale pan III (53) around pulley I (6), puts into counterweight III (54), forms the third and measures structure.
4. the equivalent experiment platform of a kind of plane concurrent force system according to claim 3, it is characterized in that: rope IV (41) is after pulley IV (59) linking springs scale III (56), connecting height regulating ring III (55) is connected with hook IV (37), hook IV (37) is fixed on pedestal (2), adjust height regulating ring III (55) length, make rope IV (41) tension, rope VI (43) connects scale pan III (53) around pulley I (6), put into counterweight III (54), form the 4th kind and measure structure.
5. the equivalent experiment platform of a kind of plane concurrent force system according to claim 4, is characterized in that: rope VII (62) connects scale pan IV (61) around pulley V (65), puts into counterweight IV (62), forms the 5th kind and measures structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134865.2U CN203786973U (en) | 2014-03-25 | 2014-03-25 | Equivalent experiment table of coplanar concurrent force system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134865.2U CN203786973U (en) | 2014-03-25 | 2014-03-25 | Equivalent experiment table of coplanar concurrent force system |
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| CN203786973U true CN203786973U (en) | 2014-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824488A (en) * | 2014-03-25 | 2014-05-28 | 辽东学院 | Equivalent experiment table of planar concurrent force system |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824488A (en) * | 2014-03-25 | 2014-05-28 | 辽东学院 | Equivalent experiment table of planar concurrent force system |
| CN103824488B (en) * | 2014-03-25 | 2016-03-16 | 辽东学院 | The equivalent experiment platform of plane concurrent force system |
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Granted publication date: 20140820 |
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