KR200383137Y1 - Partition body structure for electric actuater - Google Patents

Abstract

 The present invention is in the actuator using a motor operated by an external input and output signal connecting device to the body, the power transmission device and a manual handle to form a power transmission device,

A first chamber 12-1 having an inner wall of the vertical wall 12 having a floor function so as to accommodate the motor 20 and the control unit 21 in the body;

A second chamber 12-2 partitioned from an outer wall of the first chamber 12-1 and a vertical wall 12 to accommodate an external input / output signal connection device for sending and receiving a control signal to the motor 20 and the controller 21; And

In order to transmit power of the motor 20, the outer wall of the second chamber 12-2 and the outer wall of the bottom chamber 13 and the vertical wall 12 of the first chamber 12-1 are integrally divided and accommodate the power transmission device. An integrated body structure for an electric actuator, comprising a third chamber 12-3.

Description

 Partition body structure for electric actuators

 The present invention relates to an integrated body structure for an electric actuator, wherein the body includes a first chamber for accommodating a motor, a second chamber for accommodating a terminal block and a limit switch control unit, and a third chamber for accommodating the power transmission device. The present invention relates to an integrated body structure for an electric actuator, which is configured to be coupled to each cover so as to be detachable from each cover, to allow installation and repair for each chamber, and to enable stable operation and repair.

In general, actuators used to open and close valves such as butterfly valves and ball valves, and rotary devices such as dampers are operated by an electrical signal input from the outside, and the electrical signals are generally transmitted through a micro switch. The valve and the rotary device are opened and closed by rotating the motor or manually in the range of about 90 °.

In addition, these actuators have a self-locking device with dual worm gears, manual and electric mode switching devices, overload and overcurrent protection devices, and condensation and condensation water protection to prevent rotation by reverse torque transmitted from the valve. Built-in heater, etc. for maintaining the optimum operating state at all times.

Dual, manual and electric mode switching device is a device that can open and close the valve by selecting any one of the power of the motor or the handle manual operation in opening and closing the valve or rotary machine, depending on whether the manual / motor mode switching Opening and closing can be performed by motor power or by hand. In this case, when electricity is input to the motor, it automatically switches from manual mode to electric mode. An example of such a technique is known by Korean Utility Model Registration No. 20-0244636.

 On the other hand, a method for driving by pulling a handle instead of a lever for selecting a manual and automatic mode was developed in Korean Utility Model Registration No. 20-0350995, which is a main perspective view of the electric mode of FIG. 1 and a horizontal sectional view as shown in FIG. And, as shown in the vertical cross-sectional view as shown in Figure 3, the primary worm (31) which is installed in the handle cover 11 of the actuator and directly connected to the motor 20 as a driving source to receive power from the motor to rotate;

A handle shaft 60 horizontally supported by the handle cover 11 of the buddy and connected to an external manual handle 40 and having a fixed clutch 50 at its end;

A secondary worm shaft portion 80 installed coaxially with the handle shaft 60 and having a secondary worm 81 for rotating the secondary worm wheel 70;

A primary worm wheel 90 which is installed to be rotatable in the shaft portion 80 of the secondary worm 81 so as to be connected to the primary worm 31 and rotates in place by the motor 20;

A movable clutch (100) which is arranged to be axially movable in the axial direction on the secondary worm (81) between the primary worm wheel (90) and the fixed clutch (50);

The movable clutch 100 and the fixed clutch 50 are enclosed in the upper and lower separable forms around them and the handle cover horizontal groove 12 inside the handle cover 11 coupled to the buddy 10 when the handle is pulled out in the manual mode. A clutch holder horizontal portion 204 along which the clutch holder 200 moves in the axial direction of the secondary worm 81;

A bolt 210 coupled to the clutch holder 200 to guide the bolt head 211 to the guide groove 104 of the movable clutch 100;

The screw portion 212 of the bolt 210 is rotatably coupled to the shaft to settle in the axial direction of the secondary worm 81 to block power transmission of the primary worm wheel 90 and the movable clutch 100 in the manual mode. All animal forest clutch stopper 220 and;

 Put the bushing on the threaded portion 212 of the bolt 210 and install the stopper 220 on the bushing, and then put the torsion spring 150 around the bushing and tighten the nut, so that the clutch stopper 220 is the primary worm wheel in the manual mode. It comprises a torsion spring 150 that provides an elastic force to space the 90 and the movable clutch 100. Reference numeral 53 is a wheel wheel which functions to protrude on the outer circumferential surface of the tip of the fixed clutch 50 to contact the bending jaw 205 of the clutch holder 200 to limit movement. 201 is a vertical bar protruding perpendicular to the outer circumferential surface of the clutch holder 200 to support both ends of the torsion spring 150. Reference numeral 20-1 denotes a motor cover, 21 a control unit for controlling the operation of the motor, 22 a limit switch control unit, and 23 a terminal block. This is a power transmission device in which the power of the handle 40 is transmitted to the secondary worm shaft 80 through the movable clutch 100 as shown in FIGS. 2 and 3 when the handle 40 is pulled in the electric mode as shown in FIG. 1. It is a technical structure to operate the actuator manually by operating. Here, the limit switch control unit 22 and the terminal block 23 functions as an external input / output signal connection device. And the power transmission means including the handle exit 60, the secondary worm shaft 80, the primary worm wheel 90 and the primary worm shaft 30, etc. are referred to as a manual control unit connection or power transmission device.

However, these conventional structures form a body 10 at the bottom of the housing, join the necessary components to the body 10, and make up a cover using the covers 20-1 and 11. In other words, there is a problem that the entire actuator does not work when the moisture penetrates each other internally, and it is difficult to know where the moisture has penetrated. There is a problem that the replacement time is shortened.

 The present invention is to solve this problem, the object of the present invention is to integrate the body and partition at least three partition walls to be mutually sealable, so that in the event of an error can be repaired for each compartment, the operation is also to operate the partition in the sealing state It is to provide an integrated body structure for an electric actuator.

To this end, the present application includes a first chamber having a vertical wall for accommodating a motor and a controller, a second chamber separated from the first chamber on an outer wall of the first chamber, and accommodating an external input / output signal connection device, and an outer wall and a first chamber of the second chamber. Provided is a unitary body structure for an electric actuator using a body including a third chamber that is integrally partitioned from a portion of the inner wall of the chamber to accommodate a separate power transmission device.

 That is, the present invention, in the actuator using a motor operated by the external input and output signal connecting device to the body, the power transmission device and the manual handle to form a power transmission device,

A first chamber having a vertical wall having a floor function as an inner wall to accommodate a motor and a control part in the body;

A second chamber partitioned with a part of an outer wall of the first chamber vertical wall to accommodate an external input / output signal connecting device for sending and receiving a control signal to the motor and the controller; and

It is to provide an integrated body structure for an electric actuator comprising a third chamber which is integrally divided with the second chamber bottom wall outer wall and the first chamber vertical wall so as to transmit power of the motor, and includes a third chamber accommodating the power transmission device.

 Preferably, the inlet of the third chamber protrudes from a closed loop dam wall that accommodates the primary worm shaft coupling part, which is a power transmission device that is extended from a vertical wall forming the first chamber and receives power from the motor.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a view showing a motor lying down in a vertical sectional view of the present application, Figure 5 is a plan view of Figure 4, Figure 6 is a right side view of Figure 5,

 The integrated body structure for the electric actuator of the present invention,

In an actuator using a motor operated by an external I / O signal connecting device to a body, and a manual handle that couples a power train and forms a power train,

A first chamber 12-1 having an inner wall of the vertical wall 12 having a floor function so as to accommodate the motor 20 and the control unit 21 in the body;

A second chamber 12-2 partitioned from an outer wall of the first chamber 12-1 and a vertical wall 12 to accommodate an external input / output signal connection device for sending and receiving a control signal to the motor 20 and the controller 21; And

In order to transmit power of the motor 20, the outer wall of the second chamber 12-2 and the outer wall of the bottom chamber 13 and the vertical wall 12 of the first chamber 12-1 are integrally divided and accommodate the power transmission device. It comprises the 3rd chamber 12-3.

The inlet of the third chamber 12-3 extends in the height direction of the first chamber 12-1 from the vertical wall 12 constituting the first chamber 12-1 to transfer power from the motor 20. The dam wall 14 of the closed loop which accommodates the coupling part of the primary worm shaft 30 which is a receiving power transmission device so that sealing can be formed is protruded.

An upper end of the dam wall 14 has a primary worm shaft hole 15-1 and is coupled to an inner sealing wall 15 for fixing the motor 20.

 The first to third chambers 12-1, 12-2, and 12-3 are sealed to be detachably separated by corresponding covers 12-4, 12-5, and 12-6. Reference numeral 12-8 is a disk-like valve that functions as a valve in combination with the output of the power transmission device that receives power from the motor 20.

The design of the present application accommodates the motor 20 and the control unit 21 in the first chamber 12-1, which is a space through the inner wall of the vertical wall 12, and seals the space with one chamber cover 12-4. Since it is possible to cover as possible (since the sealing means is possible by packing, etc., simply to seal), the motor 20 and the control unit 21 are sealed with the outside to protect against the penetration of moisture to improve durability.

The operation of the motor 20 receives a signal from an external sensor through the wire inlet 24 at the terminal block 23, recognizes the signal, and sends the signal to the control unit 21. The limit switch recognizes the operation state of the valve 12-8. The state of the control unit 22 also sends a control value to the control unit 21 to achieve the correct valve angle. Of course, the control state of the control unit 21 sends the control state to the main control unit (not shown) through the terminal block 23 and the wire 25 to enable comprehensive management. Of course, the wire inlet 924 of the wire 25 should be sealed with silicon after coupling the wire 25.

The second chamber 12-2 for accommodating the terminal block 23 and the limit switch control unit 22 to perform this function also uses the outer wall of the vertical wall 12 as a wall and the third chamber 12-3 described later. ) And separate compartments to be partitioned, and cover them with two chamber covers (12-5) so that they can be sealed, so that the control unit 21 or the like is separated in the sealing state even when the terminal block 23 is installed. As a result, it is possible to stably work by preventing moisture from penetrating into other chambers, and even if moisture penetrates, only the second chamber needs to remove moisture, thereby improving workability and providing stable installation.

In addition, the present invention is to form a closed-loop dam wall 14 protruding from the middle of the vertical wall 12 to the inner center of the first chamber 12-1, connected to the dam wall 14, and a separate power transmission device. Since the third chamber 12-3 for receiving is partitioned so that it can be sealed, when the power transmission system also has an abnormality, only the third chamber 12-3 is screwed on the third cover 12-6. Loosening and separating can replace internal parts or remove moisture. This is convenient for injecting lubricating oil, etc. in addition to simply removing moisture, which transfers the lubricating oil to the first chamber 12-1 and the second chamber 12-2 by allowing the lubricant to act only in the third chamber 12-3. It prevents secondary failure caused by the penetration of lubricant. It also has an inner sealing wall 15 having a one-dimensional shaft hole 15-10 through which the primary worm shaft 30 receives the power of the motor 200 through the dam wall 14 forming the inlet of the third chamber 12-3. ), Three chambers (12-3) and one chamber (12-1) are further partitioned to seal.

 As described above, the present application includes one chamber accommodating a motor and a control unit, and two chambers accommodating an external input / output signal connection device such as a terminal block are divided into vertical walls that form an integral body, and one chamber and two chambers are separated from each other in a sealing state. It is possible to work or install one room and two rooms in isolation, so that it can be easily repaired even in case of partial failure and prevents the penetration of moisture.

In addition, the present invention devises a separate third chamber extending from the dam wall at the same time using an internal sealing wall structure for partitioning the dam wall on the closed loop on the vertical wall of the first chamber and sealing the inlet while allowing power transmission. By making the power transmission device in the third chamber, it prevents the lubricating oil from the shaft and cam acting as the power transmission device from flowing into the first chamber and the second chamber, thereby preventing secondary contamination by the lubricating oil. Improves durability by allowing stable operation.

1 is a perspective view of main parts of a general actuator;

2 is a cross-sectional view shown in a horizontal state of FIG.

3 is a cross-sectional view of the vertical state of FIG.

4 is a vertical sectional view of a state in which the motor is laid horizontally,

5 is a plan view of the state in which the cover of FIG. 4 is omitted;

6 is a right side view of FIG. 5.

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

12; vertical wall 12-1; 1 room 12-2; 2 room 12-3; 3 room 12-4; 1 room cover 12-5; 2 room cover

12-6; 3 seal cover 13; bottom wall 14; dam wall 15; inner sealing wall 15-1; primary worm shaft hole

20; motor 21; control unit 22; limit switch control unit 23; terminal block 24; wire inlet

25; wire 30; primary worm shaft 40 manual handle 60; handle shaft 90; primary worm wheel

Claims (4)

 In an actuator using a motor operated by an external I / O signal connecting device to a body, and a manual handle that couples a power train and forms a power train, A first chamber 12-1 having an inner wall of the vertical wall 12 having a floor function so as to accommodate the motor 20 and the control unit 21 in the body; A second chamber 12-2 partitioned from an outer wall of the first chamber 12-1 and a vertical wall 12 to accommodate an external input / output signal connection device for sending and receiving a control signal to the motor 20 and the controller 21; And In order to transmit power of the motor 20, the outer wall of the second chamber 12-2 and the outer wall of the bottom chamber 13 and the vertical wall 12 of the first chamber 12-1 are integrally divided and accommodate the power transmission device. An integrated body structure for an electric actuator, comprising a third seal (12-3).  The inlet of the third chamber 12-3 is a power transmission device extending from the vertical wall 12 forming the first chamber 12-1 and receiving power from the motor 20. An integral body structure for an electric actuator, characterized in that the protrusion of a closed loop dam wall (14) for accommodating the chaworm shaft (30) for sealing can be sealed.  3. The integrated body for an electric actuator according to claim 2, wherein an upper end of the dam wall (14) has a primary worm shaft hole (15-1) and is sealed by an inner sealing wall (15) for fixing the motor (20). rescue.  The method of claim 1, wherein the first to third chambers (12-1, 12-2, 12-3) are sealed to be detachably separated by a corresponding cover (12-4, 12-5, 12-6). Integral body structure for electric actuators.