KR200298570Y1 - Potentiometer assembly for actuator - Google Patents

Abstract

The present invention relates to a resistor assembly for an actuator, the output shaft for operating the damper in conjunction with a motor shaft coupled to the drive motor, and an actuator having a resistor assembly for sensing the rotation of the output shaft to send a signal to the outside, the The resistor assembly includes: a variable resistor coupled to an idle shaft to adjust the resistance value induced in accordance with the rotational state of the output shaft coupled to the motor shaft coupled to the drive motor; a support plate coupled to the rear of the variable resistor to support the variable resistor; And a rotating shaft coupled to the rear of the idle shaft and linked to rotate when the output shaft rotates, and a resistance display panel coupled to one end of the rotating shaft to indicate a resistance of the variable resistor. According to the present invention configured as described above, the operator can visually check the operating resistance value of the actuator, thereby facilitating the setting of the resistor without requiring a separate tester or the like.

Description

Resistor Assembly for Actuator {POTENTIOMETER ASSEMBLY FOR ACTUATOR}

The present invention relates to an actuator, and more particularly, to a resistor assembly for an actuator that enables an operator to easily check resistance.

In general incineration facilities, power generation facilities, and steel making facilities, a blower fan is installed on one side of the furnace, and the air required for the process during the process is blown to the furnace side under the control of the controller to control the thermal power of the furnace. In such a case, an actuator for controlling an opening and closing degree of the damper is essentially provided on one side of the heating furnace to adjust the amount of air or fluid supplied to the heating furnace.

As shown in FIG. 1, a general actuator used in such an incineration facility is fixedly installed with a driving motor 20 on one side of a housing 10 forming an outer appearance of the actuator.

The motor shaft 21 is installed on one side of the drive motor 20, and an output shaft (not shown) in which drive gears are installed is coupled to the upper side of the motor shaft 21 to transmit driving force to the damper. On one side of the gear, a resistor assembly 50 is provided on the rotating shaft 54 to detect the rotational force generated by the driving motor 20 to check the rotation angle of the damper, and detect the preset resistance value and the rotational position of the damper. By transmitting it to the controller, it drives the actuator.

However, the potentiometer 51 provided in the resistor assembly 50 may mechanically recognize resistance between components in the actuator and transmit signals to each other, but the operator may not visually check the resistance so that the operator may Setting of components in the actuator causes inconvenience of having to check the resistance value by using a tester.

The present invention is to solve this problem, the object is to provide an actuator that allows the operator to visually check the resistance easily.

1 is a perspective view showing the interior of the actuator according to the prior art.

Figure 2 is a perspective view showing the inside of the actuator according to the present invention.

Figure 3 is an exploded perspective view showing a resistor assembly according to the present invention.

Figure 4 is a plan view showing the main portion of the present invention.

Figure 5 is a front view showing the operation of adjusting the resistor assembly according to the present invention.

** Explanation of symbols for main parts of drawings **

10; Housing 11; Damper Display

20; Drive motor 21; Motor shaft

22; Output shaft 23; Drive gear

30; Cam assembly 31; cam

40; Limit switch 50; Resistor Assembly

51; Variable resistor 52; Children

53; Support plate 54; Axis of rotation

55; Resistance display plate 56; Pinion Gear

The present invention for achieving the above object is an actuator having an output shaft for operating a damper in connection with a motor shaft coupled to a drive motor, and a resistor assembly for sensing a rotation of the output shaft and sending a signal to the outside, the resistor The assembly includes: a variable resistor coupled to an idle shaft to adjust the resistance value induced in accordance with the rotational state of the output shaft coupled to the motor shaft coupled to the drive motor; a support plate coupled to the rear surface of the variable resistor to support the variable resistor; It is characterized in that it comprises a rotary shaft coupled to the rear of the idle axis on the extension line of the output shaft when the output shaft rotates, and a resistance display panel coupled to one end of the rotary shaft to indicate the resistance of the variable resistor.

Hereinafter, a resistor assembly for an actuator according to the present invention will be described according to the embodiment shown in the accompanying drawings. At this time, the configuration similar to the prior art will be described with the same reference numerals.

Figure 2 is a perspective view showing an actuator according to the present invention, the actuator of the present invention is installed on one side of the housing 10 and the housing 10 to form the appearance of the motor shaft 21 to rotate when the power is applied And a cam assembly 30 which is installed at one side of the drive motor 20 and coupled to an output shaft 22 which is interlocked and rotated when the motor shaft 21 rotates. A limit switch 40 is in contact with the cam 31 of the 30 to transmit the operating state of the actuator to a controller (not shown), and is provided on one side of the cam assembly 30 and provided with a variable resistor 51. The resistor assembly 50 is configured to include.

One side of the housing 10 is provided with a damper display unit 11 to check the opening degree of the damper.

The cam assembly 30 is fixedly coupled by an output shaft 22 (shown in FIG. 5) installed on the upper side of the drive motor 20 to rotate in rotation when the motor shaft 21 rotates, and the output shaft 22 has a housing. It is formed to extend to the rear of the 10 to transfer the driving force of the drive motor 20 to the damper. The output shaft 21 is provided with a drive gear 23 for transmitting the rotational force generated from the drive motor 20 to the outside.

As shown in FIG. 3, the resistor assembly 50 is coupled to a rear surface of the variable resistor 51 and a variable resistor 51 for adding or subtracting a resistance value induced according to the rotation state of the output shaft 21. A support plate 53 supporting the resistor 51, a rotating shaft 54 coupled to the rear of the variable resistor 51 and interlocked with each other when the output shaft 22 rotates, and fixed to one end of the rotating shaft 54; It is composed of a resistance display panel 55 coupled to represent a resistance value of the variable resistor 51.

The variable resistor 51 is installed to be connected to the controller to the rotary shaft 54 installed on one side of the drive gear 23 to detect the rotation of the drive gear 23 of the output shaft 22 to check the rotation angle of the damper. .

The pinion gear 56 is fixedly coupled to the outer circumferential surface of the rotation shaft 54 so as to be geared to the drive gear 23 coupled to the output shaft 22.

An idle shaft 52 is fixedly coupled to the center of the rear surface of the variable resistor 51. A thread is formed on the outer circumferential surface of the idle shaft 52, and a screw 57 for fixing the support plate 53 is provided on the screw thread. Combined.

The resistance display panel 55 is fixed to one end of the rotation shaft 54 and is simultaneously rotated by the rotation of the pinion gear 56 which rotates in coordination when the drive gear 23 of the output shaft 22 rotates. At this time, a pin fixing groove 56a is formed at one side of the pinion gear 56, and a pin through hole 55b is formed at a position corresponding to the resistance display plate 55, thereby providing a resistance display plate 55 and The pinion gear 56 is fixedly coupled to each other by the fixing pin 58 so that the resistance display panel 55 rotates together when the pinion gear 56 is rotated.

That is, the present invention is to provide a resistance display panel 55 on the rotating shaft 54 rotatably coupled to the rear of the variable resistor 51 to enable the operator to visually check the resistance value detected mechanically.

In the actuator configured as described above, when the operator sets a predetermined temperature through the control panel, the controller recognizes the set resistance value and the resistance signal of the variable resistor 51 for detecting the rotation position of the damper, and calculates the direction position in which the damper is to be moved. The actuator is driven based on the result of this calculation. As a result, the drive motor 20 of the actuator is operated to rotate the damper, and the controller recognizes that the damper has reached the set position through the variable resistor 51 and outputs rotation and stop signals to the actuator.

Next, the process of adjusting the resistance value of the resistor assembly according to the present invention will be described with reference to FIG.

In this embodiment, the resistance value can be checked when the damper is open in the middle.

Therefore, when the resistance value needs to be adjusted, the driving instructions of the damper display unit 11 are 50% by adjusting the rotation angle of the damper by rotating the motor shaft 21 by driving the drive motor 20 manually or by electric motor. To indicate.

At this time, the rotation shaft 54 and the resistance display panel 55 are simultaneously rotated in association with the output shaft 22 linked to the driving motor 20 so that the scale of the resistance display panel 55 reaches a predetermined position.

Then, loosen the screw 57 for fixing the support plate 53, rotate the support plate 53 by a predetermined angle so that the scale of the damper indicator 11 is located in the graduation check hole 53a of the support plate 53, and then tighten the screw. The support plate 53 is firmly fixed.

Accordingly, in the case of an actuator having a resistance variable value of 0 to 1000 kV, when the display portion 55a of the resistance display plate 55 is positioned in the graduation check hole 53a as described above, the resistance value of 500 kV is outputted. The resistance value can be easily confirmed.

As described above, according to the present invention, the operator can visually check the operating resistance value of the actuator, thereby facilitating setting of the resistor in a state that does not require a separate tester or the like.

Claims (2)

An actuator having an output shaft 22 connected to the motor shaft 21 coupled to the drive motor 20 to operate the damper, and a resistor assembly 50 which senses the rotation of the output shaft 22 and sends a signal to the outside. To The resistor assembly 50 includes a variable resistor 51 for adding or subtracting a resistance value induced according to a rotation state of an output shaft 22 geared to a motor shaft 21 coupled to a driving motor 20, and the variable resistor ( A support plate 53 coupled to the rear surface of the 51 to support the variable resistor 51, a rotary shaft 54 coupled to the rear of the variable resistor 51 and interlocked when the output shaft 22 rotates, and the rotary shaft And a resistance display panel (55) fixedly coupled to one end of the (54) to indicate the resistance of the variable resistor (51). The scale check hole 53a of claim 1, wherein a scale 55a is written in the resistance display panel 55, and a scale 55a of the resistance display panel 55 is confirmed at one end of the support plate 53. Resistor assembly for an actuator, characterized in that formed.