Simulation demonstrator of collapse earthquake
Technical field
The present invention relates to a kind of simulation demonstrator of collapse earthquake.
Background technology
Earthquake is one of irresistible paroxysmal natural phenomena of the mankind, and earthquake can be divided into artificial earthquake and earthquake.Artificial earthquake is caused by mankind's activity (such as cut into a mountain, open a mine, explosion), earthquake is in addition just referred to as.Earthquake can be divided mainly into tectonic earthquake, volcanic earthquake, depression earthquake, the major class of Tectonic earthquake four by the origin cause of formation.The earthquake that frequency is most on the earth, destructiveness is maximum is tectonic earthquake.
The depression earthquake solublerock that has been due to underground water dissolves, makes to occur cavity in rock and gradually expands, or because underground mining forms huge cavity, causes to subside with soil slide at the top of rock and cause earthquake.Depression earthquake occurs mainly in limestone or other karst Rock Regions, because underground karst cavity constantly expands, hole top avalanche, causes vibrations.Ore deposit hole is collapsed or landslide, landslide etc. can also cause this kind of earthquake to occur on a large scale.This kind of earthquake accounts for 3% or so of earthquake sum, earthquake magnitude all very littles.Mining area depression earthquake is maximum up to 5 grades or so, and 4 grades of depression earthquake once occurred for China.Although the focus of depression earthquake is shallow, more serious destruction can be still caused to mine upper and lower part, and threatens the life security of miner, should be come into the picture.
The content of the invention
The purpose of the present invention be the origin cause of formation for depression earthquake there is provided a kind of simulation demonstrator of collapse earthquake, destruction when occurring by reproducing depression earthquake makes spectators preferably recognize understanding earthquake, strengthens people's consciousness of preventing and reducing natural disasters.
To achieve these goals, the present invention is achieved by the following technical solutions:Depression earthquake simulator, including apparatus for demonstrating and drive device, apparatus for demonstrating are constituted by operating console and with the ground sand table model for subsideing ground;Drive device, which is located at, subsides below ground, it is characterised in that:The drive device includes:Framework, motor, synchronizing wheel, Timing Belt, ball-screw, connecting plate, sliding block contiguous block, stainless steel shaft, wherein:
Motor is arranged on the support frame of framework, and the output shaft end of the motor is installed synchronizing wheel and is connected by Timing Belt with expansion tightening wheel;One end of ball-screw is connected with synchronizing wheel, and the other end is connected with connecting plate;The two ends of the connecting plate are respectively mounted sliding block contiguous block, and stainless steel shaft is being installed with the framework both sides of the sliding block contiguous block correspondence position.
Using above-mentioned technical proposal, the fixed mount that ball-screw is made up of connecting rod, linear bearing and fixed plate is fixed, and the fixed mount is fixedly mounted on framework through ball-screw nut)On.
Using above-mentioned technical proposal, ground sand table model top is furnished with projecting apparatus.
In summary, the present invention is furnished with projecting apparatus as a result of on ground sand table model top, the content that can be wanted to know about according to spectators, play corresponding simulated scenario, when simulation sand table synchronous demonstrating earthquake precursory phenomenon, earthquake occur tomography up and down and subsideing of producing of the left and right changing of the relative positions and earthquake, while also demonstrating the relation between the focus of earthquake, earthquake magnitude and earthquake intensity.
Brief description of the drawings
Fig. 1 is depression earthquake simulator front view;
Fig. 2 is the structure chart of depression earthquake simulator drive device;
In figure, 1 motor, 2 synchronizing wheels, 3 expansion tightening wheels, 4 ball-screws, 5 ball-screw nuts, 6 connecting rods, 7 linear bearings, 8 fixed plates, 9 connecting plates, 10 sliding block contiguous blocks, 11 stainless steel shafts, 12 frameworks, 13 fixed mounts, 14 Timing Belts, 15 support frames, 16 operating consoles, 17 ground sand table models, 18 subside ground.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the present invention is further elaborated:
Earth's surface on push console 16 subsides button and starts motor 1, drives synchronizing wheel 2 to rotate, and synchronizing wheel 2 drives ball screw 4 by expansion tightening wheel 3, Timing Belt 14;Ball-screw 4 drives connecting plate 9 to move up and down successively, and then promotes the elevating movement of framework 12, realizes ground sand table model and subsides and collapse with earth's surface, and earth's surface is subside after simultaneity factor reset also automatically resets, demonstrates repeatedly therewith.Simultaneously by the frequency modulation of regulation motor 1, the different focus depths, the ground subsidence of earthquake magnitude size can be simulated.