CN207637405U

CN207637405U - A kind of sun, earth teaching appliance

Info

Publication number: CN207637405U
Application number: CN201721504615.3U
Authority: CN
Inventors: 杨刘瑾
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-04
Filing date: 2017-11-04
Publication date: 2018-07-20
Anticipated expiration: 2027-11-04

Abstract

The utility model discloses a kind of sun, earth teaching appliances, it is desirable to provide it is a kind of more intuitively become apparent its it is better i.e. not only can rotation but also the tellurion that can revolve around the sun, the main points of its technical scheme are that：The sun is supported by following upright bar each other with two model of the earth, upright bar stage casing outer rim is set with metal (upper and additional bearing block, two bearings seat is selected connecting rod to involve and is integrated, its following upright bar of solar model is erected on chassis, it be center is empty internal tooth or external tooth large gear disk that chassis is upper, the lower end top periphery of its following upright bar of earth model is set with pinion gear and the often place tooth of large gear disk is intermeshed, earth model is pushed to circle equal to 1 year around solar model fortune along toothed disc, simultaneously rotation, circled certainly equal to one day while in operation.

Description

A kind of sun, earth teaching appliance

Technical field

The utility model is related to a kind of model for school instruction, more precisely more particularly to taking lessons in geography when A kind of model for expressing the sun and earth operating.

Background technology

To illustrate natural phenomena of the earth around sun operating and rotation, the model of similar a sun and the earth is manufactured, is led to The earth model often bought is commonly referred to as tellurion, since tellurion only can only promote its rotation manually with external force in the prior art And cannot revolve around the sun, visual effect is not achieved to decrease to student's level of understanding.

Invention content

The utility model is to overcome above-mentioned deficiency, it is desirable to provide a kind of more intuitively to become apparent its and better both The tellurion that rotation can revolve around the sun again selects following technical scheme to be achieved.

The sun and two model of the earth are supported by following upright bar each other, and upright bar stage casing outer rim is set with metal (upper and additional Bearing block, two bearings seat select connecting rod to involve and is integrated, its following upright bar of solar model is erected on chassis, and chassis is upper to be The heart is the internal tooth or external tooth large gear disk of sky, is that operating, external toothing are to operate counterclockwise clockwise according to turnover direction internal messing, Or be situation in turn, the lower end top periphery of its following upright bar of earth model is set with the every of pinion gear and large gear disk Locate tooth intermeshing, push earth model along toothed disc around solar model fortune circle equal to 1 year, in operation while And rotation, it is circled certainly equal to one day, all numbers that earth model often transports middle rotation of circling around solar model depend on gear wheel The diameter ratio of disk and pinion gear.Due to solely for demonstration, influence how much is had no from turn-week number.

It selects power to drive to demonstrate more true to nature, i.e., chassis is made into hollow or removes chassis, outside toothed disc Side lower plane is supported and is positioned by mounting, the vertical installation of main shaft upward centered on built-in micromotor at a slow speed, and will too Its following upright bar lower end top of formpiston type is linked together with electric machine main shaft, and main shaft periphery is set with elbow push rod and upper connecting rod It is linked together, to drive earth model average rate automatic operating, motor often transports the company of circling and solar model original position is circled certainly How all simultaneously rotation is with circling in earth model week.

Palpus lubricating oil is had no to mitigate the phase mutual friction of big pinion gear in operation process, and by the tooth of pinion gear by axis Hold encased replaced.

In conclusion its main points of technical solution used by the utility model are：The sun and two model of the earth are each other under The upright bar on side supports, and upright bar stage casing outer rim is set with metal (upper and additional bearing block, and it is one that two bearings seat, which selects connecting rod to involve, Body, its following upright bar of solar model are erected on chassis, and it be center is empty internal tooth or external tooth large gear disk, the earth that chassis is upper The lower end top periphery of its following upright bar of model is set with pinion gear and the often place tooth of large gear disk is intermeshed.Outside toothed disc Side lower plane is equipped with mounting, the vertical installation of main shaft upward centered on built-in micromotor at a slow speed, it is following for solar model Upright bar lower end top is linked together with electric machine main shaft, and main shaft periphery is set with elbow push rod and is linked together with upper connecting rod.It is small The tooth of gear is replaced by bearing is encased.

The utility model advantage is：It can be achieved to demonstrate with more intuitively becoming apparent and its is better, that is, reach To not only can rotation but also the tellurion that can revolve around the sun.

Description of the drawings

Fig. 1 is the utility model its structure of hand sun, earth teaching appliance and acting principle schematic；

Fig. 2 is that the utility model its structure of electrodynamic type sun, earth teaching appliance is intended to acting principle exhibition；

Fig. 3 is its structure of small one and large one inside engaged gear and acting principle plane i.e. internal organs view；

Fig. 4 is small one and large one replaces its structure and acting by pinion gear tooth of the internal messing including it by bearing is encased Principle display figure；

Fig. 5 is that small one and large one is its its structure of two gear of external toothing and acting principle display figure；

Fig. 6 is that small one and large one is its its structure of two gear of internal messing and acting principle stereogram.

Specific implementation mode

Further description is done with reference to each attached drawing.

Referring to Fig.1, solar model 4 is supported by following upright bar 24 each other with earth model 6, in 4 upright bar 24 of solar model Section outer rim is set with metal (upper (not shown) and additional bearing block 3, the stage casing outer rim of its following upright bar 24 of earth model 6 It is set with metal (upper (not shown) and additional bearing block 23, two bearings seat is selected connecting rod 5 to involve and is integrated, solar model 4 its following upright bar 24 are erected on chassis 2, and it be center is empty internal-gear disk 1 that chassis 2 is upper, it is following vertical for earth model 6 The lower end top periphery of bar is set with pinion gear (not shown) and the often place tooth of large gear disk 1 is intermeshed, with the earth Bearing 22 is set in the upright bar at the model place of being affixed, the upright bar upper end top stretched into earth model is equally set with bearing (figure In be not shown), handle 7 is installed for manual transfer outside earth model its bearing block.

With reference to Fig. 2 and Fig. 3, select micromotor 10 that earth model 6 is driven to operate to demonstrate more true to nature, i.e., the bottom of by Disk be made into it is hollow, 1 outside lower plane of toothed disc by mounting 8 support and position, be fixed on by screw 13 slow on holder 9 The vertical installation of main shaft 11 upward centered on fast micromotor 10, and its following upright bar lower end top and electricity by solar model 4 Owner's axis 11 is linked together, and 11 periphery of main shaft is set with elbow push rod 12 and holds together with upper connecting rod 5, earth model Its following upright bar top periphery is set with pinion gear 14 and is intermeshed with the tooth in large gear disk 1, to drive earth model Average rate automatic operating, motor often transports the company of circling and solar model is in situ more with simultaneously rotation of circling in earth model week from circling Week.

With reference to Fig. 4, palpus lubricating oil is had no to mitigate the phase mutual friction of big pinion gear in operation process, and internal tooth will be located at Replaced by bearing encased 17 by its tooth of pinion gear 16 in the large gear disk 15 of half of circle chase.

With reference to Fig. 5, small one and large one its gear wheel 18 of two external gear pumps and pinion gear 19 are intermeshed, when for the reality It is stationary with its gear wheel in novel, pinion gear operates back and forth along gear wheel inner edge contour.

With reference to Fig. 6, inner tooth gearwheel 20 outside and pinion gear inside 21 are intermeshed, and acting principle is constant.

Claims

1. a kind of sun, earth teaching appliance, is composed of solar model and earth model, it is characterized in that the sun and two mould of the earth Type is supported by following upright bar each other, and upright bar stage casing outer rim is set with metal (upper and additional bearing block, and two bearings seat, which is selected, to be connected Bar, which involves, to be integrated, its following upright bar of solar model is erected on chassis, and upper chassis is that center is big for empty internal tooth or external tooth The lower end top periphery of toothed disc, its following upright bar of earth model is set with pinion gear and the often place tooth of large gear disk is mutually nibbled It closes.

2. a kind of sun, earth teaching appliance according to claim 1, it is characterized in that lower plane is equipped with seat outside toothed disc Frame, the vertical installation of main shaft upward centered on built-in micromotor at a slow speed, its following upright bar lower end top of solar model and electricity The upper main shaft of machine is linked together, and main shaft periphery is set with elbow push rod and is linked together with upper connecting rod.

3. a kind of sun, earth teaching appliance according to claim 1, it is characterized in that the tooth of pinion gear is encased by bearing Replaced.