CN2543090Y

CN2543090Y - Driver

Info

Publication number: CN2543090Y
Application number: CN 02229024
Authority: CN
Inventors: 王亦雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-09
Filing date: 2002-04-09
Publication date: 2003-04-02
Anticipated expiration: 2012-04-09

Abstract

The utility model relates to a driving device; in particular to a driving deice which drives an astronomical telescope to rotate by a flexible shaft. The utility model consists of a DC motor, a DC motor speed control operating circuit and a transmission mechanism of a speed change gear. The main shaft of the motor is series connected with the driving shaft with a transmission small gear at the input end of the transmission mechanism of the speed change gear. The output end of the transmission mechanism of the speed change gear is provided with an output shaft. The utility model is not only safe and reliable but also convenient in using. Because the motor speed control operating circuit is also arranged, so the utility model is also has the advantages of providing users with convenience in controlling and using.

Description

Driver

The utility model relates to a kind of driver, particularly a kind of driver that can drive the astronomical telescope rotation by flexible axle.

The driver that existing drive astronomical telescope longitude and latitude rotates is a power by the low speed alternating current generator usually, the problem of existence: the one, and rely on alternating current not only to have unsafe factor, and use in incompatible open-air AC-less power zone as power supply; The 2nd, speed governing arbitrarily is so use inconvenient.The 3rd, the alternating current generator volume is big, and inconvenience is carried.

The purpose of this utility model is that a kind of driver will be provided, and it is not only safe and reliable, and easy to use.

The utility model is made of DC motor speed-regulating operating circuit and derailleur, and electric machine main shaft is connected in series mutually with the main drive shaft that the derailleur input end has drive pinion, and the output terminal of derailleur has output shaft.

The utility model is because to adopt direct current generator be power, so volume is little, and is in light weight, and all can directly be that power supply carries out operate as normal with the battery in any zone.In addition, owing to also be provided with the electric machine speed regulation operating circuit, so with making things convenient for the user to regulate and control the remarkable advantage of use.

Below in conjunction with drawings and Examples the utility model is specifically described.

Fig. 1 is that the embodiment mechanical transmission mechanism launches cut-open view.

Fig. 2 is the variable transmission mechanism end view.

Fig. 3 is the DC motor speed-regulating working circuit diagram.

Fig. 4 is a DC motor speed-regulating operating circuit block scheme.

With reference to accompanying drawing, the utility model embodiment is made of DC motor speed-regulating operating circuit and derailleur, electric machine main shaft is connected in series mutually with the main drive shaft that the derailleur input end has drive pinion, and the output terminal of derailleur has output shaft.

For making compact conformation rationally distributed, above-mentioned derailleur is by the main drive shaft with pinion wheel, and several duplicate gears that are articulated in successively on the derailleur housing constitute with the output shaft with gear wheel.The central shaft of each duplicate gear is periphery successively on the housing of derailleur.

In order to realize stepless time adjustment to direct current generator, the operating circuit of the utility model embodiment is by the power circuit part with battery E and K switch 1, sampling circuit of pressure-stabilizing with resistance R 6, light emitting diode D2 and adjustable potentiometer W, filtering circuit with resistance R 7, R8 and C2, amplifying circuit with resistance R 2, R3 and operational amplifier I, II, have diode D1, the constant-current source circuit part and the forward-reverse switch K2 of triode BG, resistance R I, R4 and R5 and capacitor C 1 connect and compose.

The mechanical transmission course of the utility model embodiment is the pinion wheel A on the driven by motor main drive shaft, by pinion wheel A to B → C → D → E → F → G duplicate gear transmission successively, last pinion wheel by the G duplicate gear drives the gear wheel H on the output shaft, thereby output shaft is rotated with the speed of per hour 4-8 commentaries on classics.

The principle of work of DC motor speed-regulating operating circuit is: electric current is obtained comparative voltage by R6, D2, W after K1 powers on, and inputs to the anode of amplifier I through R8, C2 filtering, amplifies the anode that outputs to amplifier II.Amplifier II and BG constitute voltage changes constant current output.Adjusting W is the scalable output current, with the control motor speed.

The utility model is novel, and is reasonable in design, and it is little, in light weight to have a volume, the remarkable advantage that is easy to carry and uses and regulate and control. Its market Prospect is considerable.

Claims

1, a kind of driver, it is characterized in that: by direct current generator, DC motor speed-regulating operating circuit and derailleur constitute, and electric machine main shaft is connected in series mutually with the main drive shaft with drive pinion of derailleur input end, and the output terminal of derailleur has output shaft.

2, driver according to claim 1 is characterized in that: derailleur is by the main drive shaft with pinion wheel, and several duplicate gears that are articulated in successively on the derailleur housing constitute with the output shaft with gear wheel.

3, driver according to claim 2 is characterized in that: the central shaft of each duplicate gear is periphery successively on the housing of derailleur.

4, driver according to claim 1 and 2, it is characterized in that: the DC motor speed-regulating operating circuit is by the power circuit part with battery E and K switch 1, sampling circuit of pressure-stabilizing with resistance R 6, light emitting diode D2 and adjustable potentiometer W, filtering circuit with resistance R 7, R8 and C2, amplifying circuit with resistance R 2, R3 and operational amplifier I, II, have diode D1, the constant-current source circuit part and the forward-reverse switch K2 of triode BG, resistance R I, R4 and R5 and capacitor C 1 connect and compose.

5, driver according to claim 3, it is characterized in that: the DC motor speed-regulating operating circuit is by the power circuit part with battery E and K switch 1, sampling circuit of pressure-stabilizing with resistance R 6, light emitting diode D2 and adjustable potentiometer W, filtering circuit with resistance R 7, R8 and C2, amplifying circuit with resistance R 2, R3 and operational amplifier I, II, have diode D1, the constant-current source circuit part and the forward-reverse switch K2 of triode BG, resistance R I, R4 and R5 and capacitor C 1 connect and compose.