CN201000698Y

CN201000698Y - Device for simulating rotation and revolution of the earth

Info

Publication number: CN201000698Y
Application number: CNU200720115491XU
Authority: CN
Inventors: 刘晓萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2008-01-02
Anticipated expiration: 2017-02-01

Abstract

The utility model discloses an earth rotation and revolution simulating device which belongs to teaching and science education apparatus; an electric motor is separately connected with two speed reducers, two ends of a flexible axle are separately connected with a planet speed reducer and a speed reducer, two ends of a revolution axis are connected with the speed reducer and a revolution rotating arm, a rotation axis is connected with the revolution rotating arm by hinge joint, the planet speed reducer is arranged above the earth body, an umbrella shaped cover is fixedly arranged on a driving axle of the planet speed reducer, a magnetic iron is fixedly arranged on the side face of the earth body which faces the umbrella shaped cover, and the outer surface of the earth body which faces the magnetic iron of the umbrella shaped cover is fixedly provided with a magnetic iron which has a opposite polarity; The utility model has the advantages that the structure is simple, the cost is inexpensive, the simulated operation effect is visual and authentic, and the device is advantageous to popularize the astronomical knowledge and improve the teaching level.

Description

Earth rotation and revolution analogue means

Technical field

The utility model belongs to teaching and Popular Science Education instrument.

Background technology

At present, the universe space scientific instrument that are configured in the maximization in places such as planetarium, science assembly hall have played effect preferably to propaganda astronomic knowledge aspect.But, because China planetarium, science assembly hall are seldom, construction cost is high, and the science popularization instrument complex structure that maximizes, expensive, and the universal education of China's astronomic knowledge also only is on the simple textbook education aspect, lecture dull, the student understands difficulty, and quality of instruction is not high, and is difficult for causing student and children's interest, because of no perceptual knowledge, forget also very rapid again.

Summary of the invention

The purpose of this utility model is exactly problem and the defective that exists at above-mentioned prior art, design provide a kind of simple in structure, with low cost, be fit in, primary school, kindergarten and the family earth rotation and revolution analogue means that use, reach and inspire student and children the interest of astronomic knowledge study, the purpose of improving the quality of teaching, popularizing science.

Basic design of the present utility model is, shaft of motor is connected with the power input shaft of speed reduction unit and speed reduction unit, and the flexible axle two ends are connected on the driving shaft of planetary reduction gear and on the power output shaft end of speed reduction unit; The rotating shaft upper end is connected with the power output shaft of speed reduction unit, installs the revolution pivot arm on its lower end; The axis of rotation lower end of geoid is connected with revolution pivot arm outer end hinge, and geoid integral body is fitted on the revolution pivot arm, and planetary reduction gear is configured in the geoid top, and the driving shaft axial line of planetary reduction gear overlaps with the axis of rotation axial line of geoid; Umbrella hood is packed on the driving shaft lower end, between planetary reduction gear lower surface and geoid upper side; The place installs magnet in umbrella hood lower inside surface outer circumferential edges; On the geoid outer surface position relative, install and the opposite polarity magnet of magnet, so far constitute earth rotation and revolution analogue means with magnet.

The utility model is simple in structure, and is cheap for manufacturing cost, and the operation simulate effect is good, not only help inspiring and promoting student and children's learning interest, and teaching efficiency is good, understands deep.During this device is fit to, primary school, kindergarten and family be equipped with and use.

Description of drawings

Fig. 1 is earth rotation and revolution analogue means overall arrangement structural representation;

Fig. 2 is planetary reduction gear and umbrella hood mounting structure synoptic diagram;

Fig. 3 is the planetary reduction gear structural representation.

Piece number explanation among the figure:

1, the axis of rotation, 2, geoid, 3, magnet, 4, magnet, 5, umbrella hood, 6, planetary reduction gear, 7, connecting rod, 8, month spheroid, 9, flexible axle, 10, speed reduction unit, 11, motor, 12, speed reduction unit, 13, rotating shaft, 14, revolution pivot arm, 15, driving shaft, 16, spider gear, 17, ring gear, 18, central gear.

Embodiment

Below in conjunction with accompanying drawing the utility model optimum implementation is described in detail.Earth rotation comprises the planetary reduction gear 6 that is made of driving shaft 15, central gear 18, spider gear 16 and ring gear 17 with the revolution analogue means, the rotating shaft of motor 11 is connected with the power input shaft of speed reduction unit 10 with speed reduction unit 12, and flexible axle 9 two ends are connected on the driving shaft 15 of planetary reduction gear 6 and on the power output shaft end of speed reduction unit 10; Rotating shaft 13 upper ends are connected with the power output shaft of speed reduction unit 12, install revolution pivot arm 14 on its lower end; The axis of rotation 1 lower end of geoid 2 is connected with revolution pivot arm 14 outer end hinges, geoid 2 integral body are fitted on the revolution pivot arm 14, planetary reduction gear 6 is configured in geoid 2 tops, and driving shaft 15 axial lines of planetary reduction gear 6 overlap with the axis of rotation 1 axial line of geoid 2; Umbrella hood 5 is packed on driving shaft 15 lower ends, between planetary reduction gear 6 lower surfaces and geoid 2 upper sides; 5 lower inside surface outer circumferential edges places install magnet 4 at umbrella hood; On geoid 2 outer surface positions relative, install and magnet 4 opposite polarity magnet 3 with magnet 4.Equipped connecting rod 7 is joined moon spheroid 8 admittedly on the outer end of connecting rod 7 on the spider gear 16 center axle heads of planetary reduction gear 6, and this moon body is positioned at geoid 2 sidepieces.

During operation, rotatablely moving of motor 11 drives flexible axle 9 and rotating shaft 13 rotations respectively through

speed reduction unit

10,12, flexible axle 9 drives umbrella hood 5 rotations through driving shaft 15, under magnetic opposite magnet 3 and 4 attraction force acts, drive geoid 2 and rotate, become the simulation rotation of geoid 2 around the axis of rotation 1 and umbrella hood 5 equidirectionals; Rotating shaft 13 becomes the simulation revolution operation of geoid 2 through driving geoid 2 13 rotations around the shaft with the hinged axis of rotation 1; Planetary reduction gear 6 drives month spheroid 8 through connecting rod 7 and rotates around geoid 2, satellite moon spheroid 8 methods of operation of simulation geoid 2.

Claims

1, a kind of earth rotation and revolution analogue means, comprise the planetary reduction gear (6) that constitutes by driving shaft (15), central gear (18), spider gear (16) and ring gear (17), the rotating shaft that it is characterized in that motor (11) is connected with the power input shaft of speed reduction unit (10) with speed reduction unit (12), the driving shaft (15) that flexible axle (9) two ends are connected to planetary reduction gear (6) go up and the power output shaft end of speed reduction unit (10) on; Rotating shaft (13) upper end is connected with the power output shaft of speed reduction unit (12), installs revolution pivot arm (14) on its lower end; The axis of rotation (1) lower end of geoid (2) is connected with revolution pivot arm (14) outer end hinge, geoid (2) integral body is fitted on the revolution pivot arm (14), planetary reduction gear (6) is configured in geoid (2) top, and driving shaft (15) axial line of planetary reduction gear (6) overlaps with the axis of rotation (1) axial line of geoid (2); Umbrella hood (5) is packed on driving shaft (15) lower end, is positioned between planetary reduction gear (6) lower surface and geoid (2) upper side; The place installs magnet (4) in umbrella hood (5) lower inside surface outer circumferential edges; On geoid (2) outer surface position relative, install and the opposite polarity magnet of magnet (4) (3) with magnet (4).

2, earth rotation according to claim 1 and revolution analogue means, it is characterized in that equipped connecting rod (7) on the axle head of spider gear (16) center of planetary reduction gear (6), admittedly join a moon spheroid (8) on the outer end of connecting rod (7), this month spheroid (8) is positioned at geoid (2) sidepiece.