KR20070052836A - A servo motor for saving space and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a space-saving servo motor and a method for manufacturing the same, and a space-saving servo motor and a method for manufacturing the same according to the present invention include a case; A motor accommodated inside the case, the drive shaft being formed upside down to face the lower end of the case and driving the servo; A gear unit connected to the motor to reduce power of the motor; And a power output unit located at one side of the upper end of the case and connected to a gear located at the top of the gear unit.

According to the space-saving servo motor and the manufacturing method thereof according to the present invention as described above, there is an advantage that the space can be efficiently used by assembling the motor upside down inside the case.

Case, motor, gear part, power output part

Description

Servo motor for saving space and manufacturing method

1 is an explanatory diagram showing a configuration of a servomotor according to the prior art;

2 is an explanatory view of a space saving servomotor according to a preferred embodiment of the present invention;

3 is an explanatory view showing a method of manufacturing a space-saving servo motor according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: servo 100: case

200: motor 210: drive shaft

220: motor gear 300: gear unit

310: first gear shaft 311: first gear

320: second gear shaft 321: second gear

322: fourth gear 330: third gear shaft

331: third gear 332: fifth gear

400: power output unit 500: PCB board

600: potentiometer

The present invention relates to a space-saving servo motor and a method for manufacturing the same, and more particularly, to a space-saving servo motor and a method for manufacturing the same that can efficiently use space by assembling the motor upside down inside the case.

In general, servomechanism is an automatic control system in which the control amount is in a mechanical position, that is, a feedback control system configured to follow an arbitrary change in a target value such as the position, orientation, and posture of an object. The motor used is called a servo motor, and there are a DC motor and an AC motor.

The servo motor is connected to a plurality of gears to control the angle and the speed of rotation in accordance with the input command to enable the transfer device, robot or RC car, etc. to move by the correct distance.

A servomotor having such a function is disclosed in FIG. 1.

Referring to FIG. 1, in a conventional servo motor, a motor shaft 11 is formed at an upper end of a motor 10, and a plurality of gears 20 are provided at a motor gear 12 connected to the motor shaft 11. Arranged in a staggered upward direction, the power output unit 30 is connected to a gear located at the top of the plurality of gears 20.

However, according to the configuration of the servo motor as described above, the size of the case 40 is increased by the height of the plurality of gears 20 connected to the motor 10 has a problem that it is difficult to develop a small servo motor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a space-saving servo motor and a method of manufacturing the same, which can efficiently use space by assembling the motor upside down inside the case.

Space-saving servo motor according to the present invention and a manufacturing method thereof to solve the above problems is a case; A motor accommodated in the case, the drive shaft being formed upside down to face the lower end of the case and driving the servo; A gear unit connected to the motor to reduce power of the motor; And a power output unit located at one side of the upper end of the case and connected to a gear located at the top of the gear unit.

The gear part may be rotatably coupled to the first gear shaft, the first gear shaft, the second gear shaft, and the third gear shaft, which are fixedly spaced apart from the inside of the case and fixed to one side of the driving shaft. A first gear coupled to the coupled motor gear; and a second gear rotatably coupled to the second gear shaft, the second gear coupled to the first gear; and rotatably coupled to the third gear shaft. A third gear connected to a second gear; and a fourth gear rotatably coupled to the second gear shaft, the fourth gear connected to the third gear; and rotatably coupled to the third gear shaft, and a lower end of the third gear. And a fifth gear connected to the fourth gear and connected to the power output unit.

In addition, the case further comprises a PCB (PCB) substrate for controlling the driving of the motor.

In addition, the inside of the case is characterized in that it further comprises a potentiometer for measuring the DC voltage.

In addition, the step of directing the drive shaft of the motor toward the lower end of the case; Connecting a plurality of gears in an upward direction of the case from a driving shaft of the motor; And connecting a gear of a top end of the plurality of gears to a power output unit.

The connecting of the plurality of gears may include: fixing the first gear shaft, the second gear shaft, and the third gear shaft to which the plurality of gears are coupled to the inside of the case at a predetermined interval; Coupling the first gear to a motor gear coupled to a drive shaft of the motor; Connecting the first gear and the second gear; Connecting the second gear and the third gear; Connecting the third gear and the fourth gear; And connecting the fourth gear to the fifth gear.

Hereinafter, the present invention will be described in detail with reference to the drawings. Like reference numerals in the drawings denote like elements.

2 is an explanatory view of a space-saving servo motor according to a preferred embodiment of the present invention, Figure 3 is an explanatory view showing a method of manufacturing a space-saving servo motor according to the present invention.

2 to 3, the space-saving servo motor according to a preferred embodiment of the present invention includes a case 100, a motor 200, a gear unit 300, a power output unit 400.

The case 100 has a space formed therein to serve to accommodate the motor 200 and the gear unit 300 to be described later. Since the size of the case 100 determines the size of the servo 1 used in the servo mechanism, it is preferable that the size of the case 100 be made small in order to minimize the volume occupied in the servo mechanism. In addition, the case 100 is preferably provided with a potentiometer 600 for measuring the DC voltage of the servomotor.

The motor 200 is accommodated in the case 100, and is connected to the gear unit 300 to be described later to drive the servo 1, the drive shaft for transmitting the rotational force of the motor 200 on the top 210 is connected. It is preferable that the motor gear 220 is fitted to the drive shaft 210 so as to be rotatable.

In the present invention, the motor 200 is characterized in that the drive shaft 210 is located upside down to face the lower end of the case 100, due to this, it is not possible to manufacture a small servo motor due to the height of the conventional case. It is possible to solve.

The gear unit 300 is connected to the motor 200 to decelerate the power of the motor 200, and a plurality of gears upward from the drive shaft 210 of the motor 200 in the case 100. It is good to form a staggered.

In addition, the gear unit 300 may include a first gear shaft 310, a second gear shaft 320, and a third gear shaft 330 which are fixedly spaced apart at a predetermined interval inside the case 100. desirable.

The first gear 311 connected to the motor gear 220 is rotatably coupled to the first gear shaft 310, and the first gear 311 is connected to the second gear shaft 320. The second gear 321 and the fourth gear 322 connected to the third gear 331 to be described later is rotatably coupled, and the third gear shaft 330 is connected to the second gear 321. The third gear 331 and the lower end are connected to the fourth gear 322 and the upper end is configured to rotatably couple the fifth gear 332 connected to the power output unit 400.

On the other hand, the plurality of gears is preferably composed of at least one or more according to the need for deceleration, it is preferable to increase the strength of the rotational force transmission during the drive of the motor by thickening the tooth width of the gear. The plurality of gears may simply be composed of spur gears in parallel with two axes. In addition, the fifth gear 332 is preferably provided with a roll bearing 333 in order to prevent the wear of the gear due to friction with the case 100.

The power output unit 400 is connected to the fifth gear 332 to transfer power to the servo mechanism, simply connected to the wheel of the RC car to enable the movement of the RC car.

Next, a manufacturing method of a space-saving servo motor will be described with reference to FIG. 3.

Referring to Figure 3, the manufacturing method of the space-saving servo motor according to the present invention,

Positioning the motor 200 so that the drive shaft 210 faces the lower end of the case 100 (step 1), a plurality of gears in the upward direction of the case 100 from the drive shaft 210 of the motor 200 It is preferably made of a connection (2 steps), connecting the gears of the uppermost of the plurality of gears to the power output unit 400 (3 steps).

At this time, connecting the plurality of gears (step 2),

A step in which the first gear shaft 310, the second gear shaft 320, and the third gear shaft 330, to which a plurality of gears are coupled, are fixedly spaced apart from each other at predetermined intervals, Connecting the first gear 311 to the motor gear 220 coupled to the drive shaft 210 of the motor 200, connecting the first gear 311 and the second gear 321, and Connecting the second gear 321 and the third gear 331, connecting the third gear 331 and the fourth gear 322, the fourth gear 322 and the fifth gear 332. ) Is made to connect.

Hereinafter, the operation of the space-saving servomotor according to the present invention will be described by taking an RC car as an example among servo mechanisms in which a servomotor is used.

When the user issues a command through the controller, the motor 200 is driven by the circuit of the PCB substrate 500. As a result, the motor gear 220 connected to the drive shaft 210 operates, and the plurality of gears connected to the motor gear 220 rotate. When the gear located at the top end of the plurality of gears is rotated (in the present invention, the fifth gear is located at the top end), the power output unit 400 connected thereto is rotated, and the power output unit 400 is an RC car. Connected to the wheel of the to enable the movement of the RC car.

Optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the present invention, there is an advantage that the space can be efficiently used by assembling the motor upside down inside the case.

Claims (6)

case; A motor accommodated in the case, the drive shaft being formed upside down to face the lower end of the case and driving the servo; A gear unit connected to the motor to reduce power of the motor; And Located in the upper side of the case, the power output unit is connected to the gear located at the top of the gear portion; space-saving servo motor comprising a. The method according to claim 1, The gear unit is rotatably coupled to the first gear shaft and the first gear shaft, the second gear shaft, the third gear shaft which is fixedly spaced apart at a predetermined interval inside the case, one side is coupled to the drive shaft A first gear connected to the motor gear; and a second gear rotatably coupled to the second gear shaft, the second gear coupled to the first gear, and rotatably coupled to the third gear shaft. A third gear connected to the gear; and a fourth gear rotatably coupled to the second gear shaft, the fourth gear connected to the third gear, and rotatably coupled to the third gear shaft, and a lower end of the fourth gear. A space-saving servo motor, comprising: a fifth gear connected to a gear and having an upper end connected to the power output unit. The method according to claim 1, The interior of the case space-saving servo motor further comprises a PCB (PCB) substrate for controlling the drive of the motor. The method according to claim 1, Space-saving servo motor further comprises a potentiometer for measuring the DC voltage inside the case. Directing the drive shaft of the motor toward the lower end of the case; Connecting a plurality of gears in an upward direction of the case from a driving shaft of the motor; And Connecting the gears of the uppermost end of the plurality of gears to the power output unit. The method according to claim 5, The connecting of the plurality of gears may include: fixing the first gear shaft, the second gear shaft, and the third gear shaft to which the plurality of gears are coupled to the inside of the case at regular intervals; Coupling the first gear to a motor gear coupled to a drive shaft of the motor; Connecting the first gear and the second gear; Connecting the second gear and the third gear; Connecting the third gear and the fourth gear; Connecting the fourth gear to the fifth gear; the manufacturing method of the space-saving servo motor further comprises.

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