CN2259664Y

CN2259664Y - Suspended electric controlling celestial three globe demonstrator

Info

Publication number: CN2259664Y
Application number: CN 96209723
Authority: CN
Inventors: 赵一民; 龚平
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-03
Filing date: 1996-05-03
Publication date: 1997-08-13
Anticipated expiration: 2006-05-03

Abstract

The utility model relates to a hanging type electric controlling celestial object three globe demonstrator, comprising a motor, an electric controlling device and a transmission device, wherein, an electricity conducting ring and a circular disc are fixedly connected to a fixed leather belt wheel shaft, and the sun is hung below the shaft center; the moon and the earth are hung below the circular disc, and the motion and the relation of the sun, the moon and the earth in the celestial objects are demonstrated and the cause of formation of years, months, days, four seasons, solar eclipse and lunar eclipse are demonstrated through the driving of the electric controlling device. The utility model gives students to the feeling of the celestial body and is convenient for students to know about the universe and the starry sky. The utility model has the advantages of vivid modeling, compact structure, strong feeling of the celestial object, etc., and is a large-sized teaching aid with authenticity and scientificalness.

Description

The automatically controlled celestial body three ball demonstrators of suspension type

The utility model belongs to education or demonstration equipment field, relates to a kind of automatically controlled celestial body three ball demonstrators of large suspension-type that concern between celestial bodies motion day, the moon, the earth that are used for demonstrating.

" three-globe instrument " that teaching is at present used mostly is the plane and puts formula, and by the gear drive demonstration, shortcoming is that authenticity is poor, and be scientific poor, causes the wrong impression of " there is support point in universe " to the pupil, no celestial body sense.

The purpose of this utility model is to provide a kind of compact conformation, the celestial body sense strong by motor-driven, the rubber tire friction gearing realizes revolution of earth and rotation and moon revolution, the automatically controlled celestial body three ball demonstrators of suspension type of Sino-Japan, the moon of demonstration celestial body, earth movements and relation under the starry sky background.

The purpose of this utility model is achieved by the following technical solution: the automatically controlled celestial body three ball demonstrators of suspension type, comprise motor, electric control gear and gearing, wherein, decide to be fixedly connected with on the Pulley shaft conducting ring, and be fixedly connected with garden dish by bearing, decide the sun bulb that also dangled under the Pulley shaft; Decide belt pulley and be linked with moving belt pulley by belt; Moving Pulley shaft is linked with earth's axis brush, moon revolution wheel and ground ball device; The moon that dangled is taken turns in moon revolution.

In addition, the ground ball device is to be made of the shell that wraps in motor D J3, bearing and earth's axis.

In addition, dish border in garden is equiped with rubber tire.

In addition, electric control gear can adopt telepilot control and manually control.

The utility model compared with prior art, owing to adopt integral formula structure, with day, the moon, the earth utilize hoist cable be suspended in proportion on the shape brandreth dish of 2 meters gardens of diameter Sino-Japan by direct current stepless time adjustment motor-driven demonstration celestial body, month, earth three motion with concern, the origin cause of formation of demonstration year, month, day, the four seasons and day, lunar eclipse, give the sensation of students, be convenient to the student and understand universe starry sky with celestial body.It is true to nature to have moulding, compact conformation, scientific characteristics such as strong.

Description of drawings

Fig. 1 is the utility model structural upright synoptic diagram;

Fig. 2 is the utility model structure diagram;

Fig. 3 is the utility model electric control principle sketch.

The utility model is described in further detail below in conjunction with drawings and Examples: consult Fig. 1, shown in Figure 2, the utility model mainly by motor, electric control gear, gearing, garden dish 3, sun bulb 4, the moon 8, ball device etc. constitute, this demonstrator can be fixed on the roof in the room, can be on the wall in house according to the standard of starry sky in autumn, accurately mark the position of constellation with luminous material or electrical equipment, give the visitor sensation with celestial body.Fix the wheel shaft 2 that a band is decided belt pulley 1 on the top, house, the garden cloche incandescent lamp bulb 4 that axle center hole dangles about a φ 300mm is represented the sun; Fixed connection has conducting ring 15 on the wheel shaft 2, and be linked with the brandreth garden dish 3 of 1～2 meter of diameter by bearing 16, the garden is coiled 3 borders and is equiped with rubber tire 17, can with the output shaft frictional rotation of the fixing motor D J1 in roof, motor D J1 can adopt the reversible decelerator of model ND-20, coil 3 one ends in the garden near being provided with a moving belt pulley 12 near the motor D J2 (can adopt recorder motor), link with deciding belt pulley 1, guarantee that 26 ° of inclination angles of the earth's axis are constant by belt 13.Moving Pulley shaft 10 is linked with earth's axis brush 11 and is linked with moon revolution wheel 9 by bearing 19, and moon revolution wheel 9 is taken turns the limit moon 8 that dangled; Moon revolution wheel 9 axle center are linked with the ground ball device by steel wire cable, the ground ball device is to be made of the shell 5 that wraps in motor D J3, bearing 6, earth's axis 7, motor D J3 can adopt recorder motor, be installed in ball device below, ground, driving wraps in the motor outside with bearing 6 and the earth shell 5 that earth's axis 7 connects, and realizes earth rotation.

Consult shown in Figure 3ly, electric control gear of the present utility model can adopt telepilot control and manually control, having or not under the situation of telepilot, can demonstrate.Its electric control operation program:

1, open the 220v switch, constellation transformer 4.8v connects, wall constellation △ 1 △ 2 △ 3 △ 4 △ ... bright, the explanation constellation.

2, the sun is luminous: open 1. with telepilot or standby hand switch, output terminal is circuit output 220v 1., and bulb is bright, and the explanation sun is solar system center, and nine planets such as the earth change around the sun.

3, earth rotation and revolution, moon revolution: open 2. with telepilot or standby hand switch, output terminal 2. circuit is exported 220v, and it is moving with The Earth Revolves round the Sun that one tunnel driving DJ1 goes up the suspension moon by the big garden of friction-driven dish.Fixedly conducting

ring

3,4 is passed through on another road, and conduction carbon brush 18 drives the moon through speed regulator 14 driving DJ2 by friction and rotates around the earth, and speed regulator 14 another roads are passed through earth's axis brush 11 and driven DJ3 drive earth rotations.Daytime between explanation day, the moon, the earth, night, day lunar eclipse and the relation in the four seasons.

Demenstration method is that to rotate a week by the outer rim that direct current stepless time adjustment motor-driven " year motor " DJ1 drives the brandreth garden dish 3 of φ 1～2m by rubber tire be 1 year.It is 1 year that the moon revolution wheel 9 that " month motor " DJ2 leans on rubber tire to drive φ 450mm changeed for 12 weeks." day motor " DJ3 is contained in the earth shell 5, and changeing for 360 weeks by the rubber tire rotation earth is 1 year.

Claims

1, the automatically controlled celestial body three ball demonstrators of a kind of suspension type, comprise motor, electric control gear and gearing, it is characterized in that deciding being fixedly connected with on the Pulley shaft (2) conducting ring (15), and be fixedly connected with garden dish (3), decide the sun bulb (4) that also dangled under the Pulley shaft (2) by bearing (16); Decide belt pulley (1) and be linked with moving belt pulley (12) by belt (13); Moving Pulley shaft (10) is linked with earth's axis brush (11), moon revolution wheel (9) and ground ball device; Moon revolution wheel (9) moon (8) that dangled.

2, celestial body three ball demonstrators according to claim 1 is characterized in that the ground ball device is made of the shell that wraps in motor D J3 (5), bearing (6), earth's axis (7).

3, celestial body three ball demonstrators according to claim 1 is characterized in that dish (3) border, garden is equiped with rubber tire (17).

4, celestial body three ball demonstrators according to claim 1 is characterized in that electric control gear can adopt telepilot control and manually control.