CN104867390B - Micro-earthquakes platform - Google Patents

Abstract

The present invention provides a kind of micro-earthquakes platform, entirety is divided into three layers, including underframe 9, center 5, upper ledge 1, the upper plane of described underframe 9 is connected with the lower plane of center 5 by two groups of linear bearing sub-assemblies 8, the upper plane of described center 5 is connected with the lower plane of upper ledge 1 by four groups of accumulator strut assemblies 4 and eccentric ratio 2 through compressional wave variable speed electric motors, particularly 3, and the described lower plane of underframe 9 is fixed with 4 rubber foots 10.It is an advantage of the invention that：It is simple in construction, easy to maintenance, if effect that is simple to operate, remembering each button, without advanced Sci-tech Knowledge, be applicable various circles of society colonies, as long as to demo environment without particular/special requirement, Land leveling, wall is smooth, has a 220V power supplys, compact-sized, floor space is small, cheap.

Description

Micro-earthquakes platform

Technical field

The invention belongs to a kind of earthquake platform, the micro-earthquakes platform of more precisely a kind of popularization and education.

Background technology

From after Wenchuan County in Sichuan earthquake on May 12 in 2008, the Earthquake Knowledge universal education of diversified forms is throughout the country Museum, science palace, science and technology center, children's palace and major, special secondary school universities and colleges emerge in large numbers one after another.Its earthquake platform is main demonstration item Mesh, all focused due to Earthquake Knowledge universal education at that time and come from social each side, flow of the people in above-mentioned unit, visiting and learning personnel Greatly, earthquake platform is mostly middle-size and small-size, such platform is not only expensive and also floor space big its is complicated, to operator Member requires high, must have certain professional knowledge, be tight to placement environmental requirement.Due to China in recent years and continuous all over the world Earthquake is constantly occurring, causes people to pay much attention to, it is more and more extensive to carry out the universal education unit of Earthquake Knowledge, such earthquake Platform is difficult in middle and primary schools, kindergarten, community's implementation universal education.

The content of the invention

The invention provides a kind of micro-earthquakes platform compact-sized, floor space is small, easy to operate.

In order to achieve the above object, the technical solution adopted by the present invention is as follows：

A kind of micro-earthquakes platform, overall point three layers, including underframe, center, upper ledge, the upper plane of described underframe is with Frame lower plane is connected by two groups of linear bearing sub-assemblies with shear wave eccentric ratio through shear wave variable speed electric motors, particularly, and the upper of described center is put down The lower plane of face and upper ledge is connected by four groups of accumulator strut assemblies and compressional wave eccentric ratio through compressional wave variable speed electric motors, particularly, described bottom Frame lower plane is fixed with 4 rubber foots, and described linear bearing sub-assembly includes Linear bearing guide rail bottom flange, linear bearing case Formula slop-on flange and bolt, described Linear bearing guide rail bottom flange are fixed by the upper plane of bolt and underframe, described straight line Lower plane of the box slop-on flange of bearing through bolt and center is fixed, and described accumulator strut assembly includes accumulator sliding sleeve method Blue, accumulator traveller flange, the accumulator slop-on flange are fixed through bolt and plane on center, and accumulator slide-bar flange is through spiral shell The lower plane of bolt and upper ledge is fixed, and described compressional wave eccentric ratio one end is by the hole of radial ball bearing and the axle sleeve of upper ledge lower plane Connect, the borehole jack of compressional wave eccentric ratio another end eccentric bushing and compressional wave eccentric ratio radial ball bearing connects, eccentric bushing dowel hole is with becoming Plane is fixed through bolt on the socket of speed motor axle, variable speed electric motors, particularly bottom flange and center, plane or so and front on described upper ledge Equipment safety guardrail, combination button box is disposed before upper ledge in guardrail, the rear of upper ledge is people's inlet and outlet and device activity safety Chain.

Accumulator traveller described in such scheme also includes mounting flange, sliding sleeve, compression spring and traveller, described pressure Power spring is located at the inside of accumulator traveller, and described sliding sleeve is enclosed on traveller, and described mounting flange is fixedly connected with traveller.

The beneficial effects of the invention are as follows：Micro-earthquakes platform of the present invention, its function and middle-size and small-size earthquake platform class are same, tool There is following feature,（1）It is simple in construction, easy to maintenance；（2）As long as effect that is simple to operate, remembering each button, without advanced Sci-tech Knowledge, it is applicable colony of various circles of society；（3）As long as to demo environment without particular/special requirement, Land leveling, wall is smooth, has 220V power supplys；（4）It is compact-sized, floor space is small, cheap.

Brief description of the drawings

Fig. 1 is the structural representation of micro-earthquakes platform of the present invention；

Fig. 2 is the enlarged diagram of accumulator traveller of the present invention；

Wherein, 1- upper ledges；2- compressional wave eccentric ratios；3- compressional wave variable speed electric motors, particularlies；4- accumulator travellers；5- centers；6- shear waves Eccentric ratio；7- shear wave variable speed electric motors, particularlies；8- linear bearing sub-assemblies；9- underframes；10- rubber foots；41st, mounting flange；42nd, accumulation of energy Device slop-on flange；43rd, sliding sleeve；44th, compression spring；45th, traveller；46th, accumulator traveller flange.

Embodiment

Embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

As described in Figure 1, it is to simulate the compressional wave that earthquake is formed the invention provides a kind of micro-earthquakes platform（Vertical water The ripple of plane）, shear wave（The ripple of parallel water plane）And the platform of face ripple, to realize seismic waveform track, including underframe 9, center 5th, upper ledge 1, the upper plane and the lower plane of center 5 of described underframe 9 are by two groups of linear bearing sub-assemblies 8 and shear wave eccentric ratio 6 Connected through shear wave variable speed electric motors, particularly 7, the upper plane of described center 5 and the lower plane of upper ledge 1 by four groups of accumulator strut assemblies 4 and Eccentric ratio（2）Through compressional wave variable speed electric motors, particularly（3）Connection, described underframe（9）Lower plane is fixed with 4 rubber foots（10）, can rise To prevent platform motion when move, described linear bearing sub-assembly（8）Including Linear bearing guide rail bottom flange, linear bearing Box slop-on flange and bolt, described Linear bearing guide rail bottom flange is by bolt and underframe（9）Upper plane fix, it is described Lower plane of the box slop-on flange of linear bearing through bolt and center 5 is fixed, and described accumulator strut assembly 4 includes accumulator Slop-on flange 42, accumulator traveller flange 46, the accumulator slop-on flange 42 is fixed through bolt and plane on center 5, described Lower plane of the accumulator traveller flange 46 through bolt and upper ledge 1 fix, described one end of eccentric ratio 2 is by radial ball bearing The axle socket of hole and the lower plane of upper ledge 1, the borehole jack of the another end eccentric bushing of eccentric ratio 2 and the radial ball bearing of eccentric ratio 2 connect, Eccentric bushing dowel hole is socketed with variable speed electric motors, particularly axle, plane is fixed through bolt on variable speed electric motors, particularly bottom flange and center 5, described upper ledge Plane or so and front equipment safety guardrail on 1, placement combination An Niu An in guardrail before upper ledge, the rear of upper ledge is people's inlet and outlet And device activity safety chain.

Accumulator traveller 4 described in such scheme also includes mounting flange 41, sliding sleeve 43, compression spring 44 and slided Post 45, described compression spring 44 are located at the inside of accumulator traveller 4, and described sliding sleeve 43 is enclosed on traveller 45, the accumulation of energy Device slop-on flange 42 is fixedly connected with sliding sleeve, and described traveller flange 46 is fixedly connected with traveller 45.

The shear wave of the demonstration of micro-earthquakes platform of the present invention makees parallel water plane by shear wave variable speed electric motors, particularly driving eccentric ratio Toward polyslip, compressional wave is made perpendicular to the longitudinally reciprocal sliding of horizontal plane, two speed change electricity by compressional wave variable speed electric motors, particularly driving eccentric ratio Machine independent operation a, that is to say, that motor operates another motor inoperative just formation compressional wave or shear wave, and two operatings simultaneously are just Forming face ripple, combination button of the motor operating by demonstration experience personnel oneself by device in preceding guardrail, all buttons have label mark Note, platform frequency size reaches by variable speed electric motors, particularly rotation speed change, and the fast frequency of rotating speed is high, the slow frequency of rotating speed is low, due to compressional wave and Shear wave is all reciprocal sliding motion, and how to reduce frictional resistance is the product the main themes, and it is slip, one that sliding, which has two kinds of one kind, Kind is to roll, it is known that sliding-frictional resistance is big, rolling frictional resistance is small, the straight-line rolling overwhelming majority is to use roller, but this Kind of structural volume is big, complicated, should not be used in micro-earthquakes platform, and we select new structure part linear bearing, without with guiding This had not only simplified structure but also can reduce frictional resistance for mechanism, and favourable bar is provided from small-power variable speed electric motors, particularly for transverse reciprocating sliding Part, the motion of shear wave track solve, and how reducing motor and lifting torque to form compressional wave is another subject under discussion of the product, and platform will multiply People, platform structure part have certain weight under terrestrial gravitation effect, it is desirable to which motor must have certain torque, slightly larger work( The electric machine structure of rate is larger, and because the earthquake platform self structure should not be installed with regard to very little, small-power speed change electricity is used to reach Machine purpose, accumulator traveller is set in design structure（See Fig. 2）The shortcoming of Lai Mian Fill small-power variable speed electric motors, particularly torques.Why Small-power variable speed electric motors, particularly is selected from accumulator traveller canPeople or object do not have any to be supported on ground in space as everybody knows Understand oneself in the presence of ball gravity to fall.People is not on platform at people station when compressional wave variable speed electric motors, particularly is also not actuated for micro-earthquakes platform It can fall, it supports because of accumulator traveller internal pressure spring and eccentric ratio.As long as compressional wave variable speed electric motors, particularly start people will under Fall or rise, people starts compression spring in the accumulator of whereabouts under people and platform structural member Action of Gravity Field during compressional wave electric motor starting Compression spring 44 is compressed, the increase of the power of compression spring, but the energy of variable speed electric motors, particularly consumption is seldom, the unnecessary energy of change motor Amount is absorbed by energy storage pressure spring to be stored.The compression spring compressed when people rises starts stretching, extension by stored by compression spring Power release, the power of compression spring release plays and lifts people and platform structural member, this be exactly Newton's law active force be equal to it is anti- Active force, small-power variable speed electric motors, particularly are used as micro-earthquakes Platform Designing thinking, and practical effect is fine.

Claims (2)

1. a kind of micro-earthquakes platform, including underframe（9）, center（5）, upper ledge（1）, it is characterised in that：Described underframe（9）'s Upper plane and center（5）Lower plane is by two groups of linear bearing sub-assemblies（8）With shear wave eccentric ratio（6）Through shear wave variable speed electric motors, particularly （7）Connection, described center（5）Upper plane and upper ledge（1）Lower plane by four groups of accumulator strut assemblies（4）It is inclined with compressional wave Heart connecting rod（2）Through compressional wave variable speed electric motors, particularly（3）Connection, described underframe（9）Lower plane is fixed with 4 rubber foots（10）, it is described Linear bearing sub-assembly（8）Including Linear bearing guide rail bottom flange, the box slop-on flange of linear bearing and bolt, described straight line Bearing guide bottom flange is by bolt and underframe（9）Upper plane fix, the box slop-on flange of described linear bearing through bolt with Center（5）Lower plane fix, described accumulator strut assembly（4）Including accumulator slop-on flange（42）, accumulator traveller Flange（46）, the accumulator slop-on flange（42）Through bolt and center（5）Upper plane is fixed, accumulator traveller flange（46）Through Bolt and upper ledge（1）Lower plane fix, described compressional wave eccentric ratio（2）Hole and upper ledge of the one end by radial ball bearing（1） The axle socket of lower plane, compressional wave eccentric ratio（2）Another end eccentric bushing and compressional wave eccentric ratio（2）The borehole jack of radial ball bearing Connect, eccentric bushing dowel hole is socketed with variable speed electric motors, particularly axle, variable speed electric motors, particularly bottom flange and center（5）Upper plane is fixed through bolt, described Upper ledge（1）Upper plane or so and front equipment safety guardrail, upper ledge（1）Combination button box is disposed in preceding guardrail, described is upper Frame（1）Rear device activity safety chain.

2. micro-earthquakes platform according to claim 1, it is characterised in that：Described accumulator strut assembly（4）Also wrap Include mounting flange（41）, sliding sleeve（43）, compression spring（44）And traveller（45）, described compression spring（44）It is located at accumulator cunning Post（4）Inside, described sliding sleeve（43）It is enclosed on traveller（45）On, described mounting flange（41）With traveller（45）It is fixed to connect Connect.