KR102263922B1 - Rotation angle precise control actuator - Google Patents

Abstract

In accordance with the present invention, an actuator with precision rotation angle control includes: a housing member for embedding components of an apparatus; a motor member placed in one side part in the housing member; a control part placed on the other side of the motor member in the housing member; a terminal connection member placed in a center part of the housing member; a manual operation handle member placed in an upper part of the housing member; a clutch handle member placed in a side part of the housing member; and a center rotation shaft placed in the center part of the housing member. A worm gear is placed at the end of a rotary shaft of the motor member, and a worm wheel having the same rotation center as that of the center rotation shaft is disposed in an outer part of the center rotation shaft to surround the center rotation shaft, and, as the worm gear and the worm wheel are rotated by the driving of the motor member, the center rotation shaft is rotated. In accordance with the present invention, the rotation angle of an actuator can be precisely controlled. Moreover, a delivery loss of the rotation force generated from the motor and a delivery loss of the rotation force generated from an actuator shaft can be minimized, and components for delivering the rotation force generated from the motor can be simplified, and also, rotation torque, which is in great contrast to the size of the apparatus, can be applied.

Description

Rotation angle precision control actuator {ROTATION ANGLE PRECISE CONTROL ACTUATOR}

The present invention relates to an actuator, and more particularly, to an actuator that precisely controls the rotation angle of the actuator and is configured to apply a large rotation torque compared to the size of the device while being able to precisely control the rotation angle of the actuator. to be.

In a shipyard, steel mill, or heavy industry plant, various process fluids are transported through pipes, and various valves are installed in these process fluid transport pipes.

The valve is usually an on/off valve for opening or closing the fluid transport pipe or a control valve for controlling the flow rate of fluid flowing inside the pipe, and by adjusting the size of the fluid passage inside the transport pipe through the valve, the flow of the fluid block or adjust its flow rate.

In general, the on/off valve or the flow control valve is driven through an actuator, which is configured to transmit a rotational force of a motor driven by electric power to control the degree of opening and closing of the pipe.

In controlling the opening and closing of the valve through the motor driving, in order to accurately control the flow rate flowing through the pipe, the rotation amount of the motor must be accurately transmitted through various gears included in the actuator.

However, in order to accurately control the opening and closing of the pipe by transmitting the motor drive, various components for transmitting the rotational force generated from the motor must be complicatedly configured. The more complicated the configuration, the more the rotational force and the rotational angle generated from the motor are lost. there is a problem that

And, if the configuration for transmitting the rotational force of the motor becomes complicated, the possibility of damage to parts due to long-term driving of the device increases, and acts as an obstacle to transmitting a large rotational torque.

Therefore, accurate rotation angle control is possible even by long-term driving, and even in the case of large rotational torque transmission, the possibility of component damage is reduced and durability can be maintained. It is preferably configured to do so.

And, for precise control of the rotation angle, it is preferable that the loss of rotational force generated from the motor is minimized, and it is preferably configured to directly sense the rotation of the actuator shaft generated thereby.

It is an object of the present invention to provide an actuator for precisely controlling a rotation angle configured to precisely control the rotation angle of the actuator.

Another object of the present invention is to provide a rotation angle precision control actuator configured to minimize transmission loss of rotational force generated from a motor and transmission loss generated from an actuator shaft.

Another object of the present invention is to provide a rotation angle precision control actuator configured to apply a large rotational torque compared to the size of the device while the components for transmitting the rotational force generated from the motor are configured simply.

A rotation angle precision control actuator according to the present invention for achieving the above object includes a housing member for incorporating the components of the device, a motor member disposed on one side inside the housing member, and the motor member inside the housing member a control unit disposed on the other side of the housing member; a terminal connection member disposed at the center of the housing member; a manually operated handle member disposed above the housing member; a clutch handle member disposed at a side portion of the housing member; and the housing; It includes a central rotational shaft disposed in the center of the member, a worm gear is disposed at an end of the rotational shaft of the motor member, and a worm wheel having the same rotational center as the central rotational shaft is disposed on the outside of the central rotational shaft to surround the central rotational shaft , characterized in that the worm gear and the worm wheel are rotated by the driving of the motor member, so that the central rotating shaft is rotated.

Preferably, in the lower portion of the worm wheel, a first bevel gear having the same rotational center as the central rotational shaft is coupled to the central rotational shaft so as to surround the central rotational shaft, and a rotational angle detection encoder by rotation of the first bevel gear configured to rotate.

Here, a second bevel gear may be coupled to an end of the central axis of the rotation angle detection encoder, and the second bevel gear may be configured to rotate in association with the first bevel gear.

In addition, a strain gauge may be disposed on the rotation shaft of the motor member to detect the rotation angle of the worm gear.

Also, a yoke member may be disposed between the worm wheel and the manually operated handle member, and the yoke member may be formed to have the same rotational center as the central rotational shaft, and may be disposed to surround the outside of the central rotational shaft.

Here, the yoke member may be configured to be moved in the vertical direction by the manipulation of the clutch handle member, and to be selectively interlocked with the worm wheel.

And, the yoke member is formed in the shape of a hollow cone column, a locking jaw is formed on the outer peripheral surface of the upper end of the yoke member, and a locking jaw support member for supporting the lower portion of the locking jaw is disposed at an end of the clutch handle member.

In addition, a spring may be disposed on the yoke member.

Preferably, the locking jaw support member has a flat cross-sectional shape of "C" shape, and a curved protrusion is formed at an end of the locking jaw support member, so that the upper end of the protrusion faces the lower surface of the locking jaw of the yoke member can be configured to

In addition, the terminal connection member may include a connector cover member for separating each connector portion from each other by a partition wall.

In addition, a terminal cover housing may be coupled to the outside of the terminal connection member, and cable outlets may be formed on side surfaces and bottom surfaces of the terminal cover housing.

Preferably, the cable outlet formed on the side of the terminal cover housing is formed in a horizontal direction from the side of the terminal cover housing.

In addition, the cable inlet and outlet formed on the bottom surface of the terminal cover housing may be formed in a vertical direction from the bottom surface of the terminal cover housing.

In addition, a recess for accommodating each connector may be formed in the connector cover member, and the recess may be formed by the partition wall.

Irregular minute recesses may be formed on the surface of the connector cover member.

Alternatively, a lattice-shaped convex portion may be formed on the surface of the partition wall.

In addition, the paint may be applied in a state in which irregular minute concave portions are formed on the surface of the housing member.

Preferably, a blocking member may be disposed at a portion of the clutch handle member coupled to the locking jaw support member.

In addition, a plurality of concave portions may be formed on the protrusion surface of the locking jaw support member.

According to the present invention, it is possible to precisely control the rotation angle of the actuator.

In addition, the transmission loss of the rotational force generated from the motor and the transmission loss of the rotational force generated from the actuator shaft can be minimized.

In addition, while the components for transmitting the rotational force generated from the motor are configured simply, it is possible to apply a large rotational torque compared to the size of the device.

The accompanying drawings are for understanding the technical idea of the present invention together with the detailed description of the present invention, so the present invention should not be construed as limited to the matters shown in the following drawings.
1 is a perspective view of a rotation angle precision control actuator according to the present invention;
2 is a perspective view of a state in which the actuator is installed;
3 is a plan view of the actuator;
4 is a bottom perspective view of the actuator;
5 is an internal perspective view of the actuator;
6 is another internal perspective view of the actuator,
7 is another internal perspective view of the actuator,
8 is an internal bottom perspective view of the actuator;
9 is an internal side view of the actuator;
10 is another internal perspective view of the actuator,
11 is an exploded perspective view of the axial part of the actuator;
12 is a perspective view of the axial portion of the actuator coupled;
13 is another internal perspective view of the actuator;
14 is another internal perspective view of the actuator;
15 is a perspective view of a terminal connection part included in the actuator;
16 is a perspective view of the terminal connection part according to another embodiment of the present invention;
17 is a perspective view of the terminal connection part according to another embodiment of the present invention;
18 is a perspective view of a locking jaw support member included in the actuator according to another embodiment of the present invention.

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

Prior to this, the terms used in the present specification and claims should not be construed as being limited in the dictionary meaning, and based on the principle that the inventor can appropriately define the concept of the term to describe his invention in the best way. , should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Accordingly, the configurations shown in the embodiments and drawings described in this specification are only preferred embodiments of the present invention, and do not express all the technical ideas of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that water and variations may exist.

1 is a perspective view of a rotation angle precision control actuator according to the present invention, FIG. 2 is a perspective view of a state in which the actuator is installed, FIG. 3 is a plan view of the actuator, and FIG. 4 is a bottom perspective view of the actuator. , FIG. 5 is an internal perspective view of the actuator, FIG. 6 is another internal perspective view of the actuator, FIG. 7 is another internal perspective view of the actuator, and FIG. 8 is an internal bottom perspective view of the actuator. 9 is an internal side view of the actuator, FIG. 10 is another internal perspective view of the actuator, FIG. 11 is an axial partial exploded perspective view of the actuator, and FIG. 12 is an axial part coupled perspective view of the actuator, FIG. 13 is another internal perspective view of the actuator, FIG. 14 is another internal perspective view of the actuator, FIG. 15 is a perspective view of a terminal connection part included in the actuator, and FIG. 16 is another embodiment of the present invention. is a perspective view of the terminal connection part according to the present invention, FIG. 17 is a perspective view of the terminal connection part according to another embodiment of the present invention, and FIG. 18 is a perspective view of the locking jaw support member included in the actuator according to another embodiment of the present invention. to be.

1 to 5, the rotation angle precision control actuator according to the present invention includes a housing member 10 for embedding the components of the device, and a motor member 20 disposed on one side inside the housing member 10 ), a control unit 30 disposed on the other side of the motor member 20 inside the housing member 10, a terminal connection member 40 disposed in the center of the housing member 10, and the housing member A manual operation handle member 50 disposed on the upper portion of 10, a clutch handle member 60 disposed on the side of the housing member 10, and a central rotation shaft disposed at the center of the housing member 10 ( 70), a worm gear 80 is disposed at an end of the rotation shaft 22 of the motor member 20, and a worm wheel having the same rotation center as the central rotation shaft 70 outside the central rotation shaft 70 (90) is arranged to surround the central rotation shaft 70, the worm gear 80 and the worm wheel 90 are rotated by the driving of the motor member 20, so that the central rotation shaft 70 is rotated characterized by being

The housing member 10 is a component for embedding various components of the rotation angle precision control actuator according to the present invention, and is preferably made of a metal material such as an aluminum alloy.

The housing member 10 is generally formed in a long cylindrical shape, and the terminal connecting member 40 and the terminal part cover housing 12 are disposed at the center thereof.

In order to prevent corrosion and improve the watertightness of the housing member 10 , a paint is applied to the surface of the housing member 10 in a state in which the housing member 10 is formed of an aluminum alloy.

In another embodiment of the present invention, in order to increase the adhesion of the paint applied to the surface of the housing member 10 and thus durability, the surface of the housing member 10 formed of an aluminum alloy has a surface shown in FIG. , like the connector cover member 42 in which irregular fine concave portions are formed on the surface by the sand blasting process, the paint can be applied in a state in which irregular fine concave portions are formed by the sand blasting process. have.

The sand blasting process is a surface treatment method in which hard particles such as sand or synthetic resin grains are strongly sprayed on the surface of the object to be processed, and the paint is applied in a state in which irregular fine recesses are formed on the surface of the housing member 10 . By doing so, it is possible to increase the adhesion between the paint and the surface of the housing member 10 and prevent the paint from peeling off even after long-term use.

In addition, the terminal part cover housing 12 is formed on the outside of the terminal connection member 40 disposed in the center of the housing member 10 .

The terminal connection member 40 is a configuration for coupling external cable terminals, and as shown in FIG. 15 , a connector part 41 is disposed inside the terminal connection member 40 .

Thus, a connector formed at an end of an external cable (not shown) is coupled to the connector unit 41 to supply power.

In addition, cable inlet and outlet portions 14 and 16 for passing an external cable are formed in the terminal cover housing 12 .

As shown in Figures 2 and 4, in the actuator according to the present invention, the cable inlet 14 formed on the side of the terminal cover housing 12 is horizontal from the side of the terminal cover housing 12. is formed

In addition, the cable outlet 16 formed under the terminal cover housing 12 is formed in a vertical direction from the bottom surface of the terminal cover housing 12 .

Thus, the cable inlet and outlet portions 14 and 16 for passing the external cable are all formed in a direction perpendicular to the terminal connection member 40, so that external moisture penetrates the cable inlet and outlet portions 14 and 16. It is possible to prevent intrusion into the inside of the terminal connection member 40 through the

The motor member 20 is disposed on one side of the inner space of the housing member 10 .

By electric power supplied from the outside, the motor member 20 is operated to rotate the rotating shaft 22 .

In addition, the control unit 30 is disposed on the other side of the motor member 20 in the inner space of the housing member 10 .

The control unit 30 includes various circuit boards and a display unit 32 , and generates a control signal through operation of a switch 36 disposed on the side of the housing member 10 .

Thus, the motor member 20 is rotated according to the control signal generated by the control unit 30 .

A worm gear 80 is formed at the end of the rotation shaft 22 of the motor member 20, and a worm wheel having the same rotation center as the central rotation shaft 70 outside the central rotation shaft 70 of the actuator according to the present invention ( 90 is disposed so that the worm wheel 90 surrounds the central rotation shaft 70 .

In addition, a strain gauge 25 is disposed on the rotation shaft 22 of the motor member 20 , and is configured to detect the rotation angle of the worm gear 80 .

The worm gear 80 is interlocked with the worm wheel 90 so that the worm wheel 90 is rotated by the rotation of the worm gear 80 .

Thus, the worm gear 80 is rotated by the rotation of the motor member 20, whereby the worm wheel 90 can be rotated.

4, 5 and 7, the worm wheel 90 is disposed outside the housing member 10 while surrounding the central rotation shaft 70, and the worm gear 80 is the worm wheel 90 ) by being configured to contact the outer circumferential surface, the worm wheel 90 can be configured with a large diameter.

In addition, at this time, since the worm gear 80 has a very small diameter compared to the worm wheel 90 , the worm gear 80 has a very large rotational angle ratio compared to the worm wheel 90 .

Thus, when rotating the worm wheel 90 by rotating the worm gear 80 , the rotation angle of the worm wheel 90 can be controlled very precisely.

On the other hand, as shown in FIGS. 13 and 14 , in order to sensitively sense the rotation angle of the central rotation shaft 70 rotated by the rotation of the worm wheel 90 , the center The first bevel gear 110 is disposed on the rotation shaft 70 .

Here, the first bevel gear 110 is formed to have the same rotation center as the central rotation shaft 70 , and the first bevel gear 110 surrounds the central rotation shaft 70 and is disposed outside the first bevel gear 110 .

And, the second bevel gear 130 is coupled to the first bevel gear 110 to be interlocked, and the axis of the second bevel gear 130 is for detecting the rotation angle of the second bevel gear 130 . The rotation angle detection encoder 120 is coupled.

Thus, the rotation of the second bevel gear 130 and its central axis may be detected through the rotation angle detection encoder 120 .

Here, since the first bevel gear 110 is disposed outside the central rotation shaft 70 while surrounding it, it is possible to form a very large diameter of the first bevel gear 110 .

In contrast, since the diameter of the second bevel gear 130 is very small, the rotation angle ratio between the first bevel gear 110 and the second bevel gear 130 becomes very large.

Accordingly, even if the first bevel gear 110 is rotated by a small angle, since the second bevel gear 130 is rotated by a very large angle, the rotation angle detection encoder 120 of the first bevel gear 110 Rotation can be detected very sensitively.

The rotation angle of the first bevel gear 110 detected by the rotation angle detection encoder 120 is the same as the rotation angle of the central rotation shaft 70 , and the rotation angle detection encoder 120 detects the center It is configured to feedback control by transmitting the rotation angle of the rotation shaft 70 to the control unit 30 .

As described above, the worm gear 80 and the worm wheel 90 have a very large diameter ratio, and the first bevel gear 110 and the second bevel gear 130 have a very large diameter ratio.

In this state, the central rotation shaft 70 is rotated through the rotation of the worm gear 80 , and the rotation of the central rotation shaft 70 is sensed and feedback controlled through the rotation of the second bevel gear 130 .

Thus, while the rotation of the central rotation shaft 70 can be sensitively sensed, it is possible to finely control the rotation at a very small angle.

Since the worm wheel 90 is disposed to surround the central rotation shaft 70 in the inner space of the housing member 10, it can be formed with a very large diameter.

And, since the worm gear 80 is configured to be in contact with the outer circumferential surface of the worm wheel 90 , it is possible to secure a moment arm as large as possible from the rotation center of the central rotation shaft 70 .

As a result, it is possible to apply a large rotational torque through the worm gear 80 .

As shown in FIG. 2, an external driving shaft 200 is coupled to the central rotation shaft 70, and by rotating the opening/closing part 210 coupled to the end of the external driving shaft 200, as a result, the pipe 300 The flow rate of the fluid flowing through it can be controlled.

Meanwhile, as shown in FIGS. 8 to 10 , a manual operation handle member 50 is disposed on the upper portion of the housing member 10 , and a clutch handle member 60 is disposed on the side of the housing member 10 . .

A yoke member 140 is disposed between the worm wheel 90 and the manually operated handle member 50 .

11 and 12 , the yoke member 140 is formed to have the same rotation center as the central rotation shaft 70 , and is disposed to surround the outside of the central rotation shaft 70 .

The yoke member 140 is formed in the shape of a hollow cylinder, and on the inner circumferential surface of the yoke member 140, a protrusion 143 for coupling to the concave portion 72 formed on the outer circumferential surface of the central rotation shaft 70 is formed. .

Thus, when the yoke member 140 is rotated, the central rotation shaft 70 may be rotated by the interference between the protrusion 143 and the concave portion 72 .

The worm wheel 90 is disposed to surround the convex portion 74 formed along the outer circumferential surface of the central rotation shaft 70 , and is configured to allow free rotation.

In this state, by the interference between the rotation pin 92 coupled to the worm wheel 90 and the rotation pin 144 coupled to the bottom surface of the yoke member 140, the worm wheel 90 is rotated so that the yoke member ( 140 is rotated, whereby the central rotation shaft 70 is configured to rotate.

In addition, the protrusion 112 formed on the inner circumferential surface of the first bevel gear 110 disposed under the worm wheel 90 is inserted into the concave portion 76 formed on the outer circumferential surface of the central rotation shaft 70 and disposed. do.

Thus, as the central rotation shaft 70 is rotated, the first bevel gear 110 may be rotated as a result due to the interference between the protrusion 112 and the concave portion 76 .

As shown in FIGS. 13 and 14 , the yoke member 140 is moved up and down by the manipulation of the clutch handle member 60 , and may be configured to selectively interlock with the worm wheel 90 .

That is, in a state in which the clutch handle member 60 is not operated, the yoke member 140 is always displaced downward by the action of the spring 160 disposed on the yoke member 140 is maintained. configured to do

In this state, the rotation pin 92 coupled to the worm wheel 90 and the rotation pin 144 coupled to the bottom surface of the yoke member 140 are disposed at positions that can interfere with each other, and thus the worm wheel 90 By the rotation of the yoke member 140 may be rotated.

In addition, the central rotation shaft 70 and the first bevel gear 1110 may be rotated by the rotation of the yoke member 140 .

In this state, as shown in FIG. 14 , when the clutch handle member 60 is rotated clockwise, the yoke member 140 is moved upward while the spring 160 is contracted, and the two rotation pins ( 92, 144) is released.

Then, the protrusion 146 formed on the engaging protrusion 142 of the outer peripheral surface of the upper end of the yoke member 140 rises to a position where it can interfere with the protrusion 55 formed at the lower end of the manually operated handle member 50 . do.

In this state, when the manually operated handle member 50 is rotated, the protrusion 55 and the protrusion 146 of the yoke member 140 interfere with each other, and the yoke member 140 and the central rotation shaft 70 rotate. can be

Thus, in a situation in which external power supply is stopped, the central rotation shaft 70 can be rotated by manipulating the clutch handle member 60 and the manual control handle member 50 without driving through the motor member 20 . have.

At an end of the clutch handle member 60 , a locking jaw support member 150 for supporting the lower portion of the locking jaw 142 of the yoke member 140 is disposed.

The locking jaw support member 150 has a flat cross-sectional shape of a substantially "C" shape, and a curved protrusion 152 is formed at the end of the locking jaw support member 150, so that the upper end of the projection 152 is It is configured to face-to-face contact with the lower surface of the engaging projection 142 of the yoke member.

Thus, when the clutch handle member 60 is rotated, the protrusion 152 of the locking jaw support member 150 supports the lower surface of the locking jaw 142 of the yoke member and pushes it upward, so that the yoke member 140 may be moved upward.

In this state, when the manually operated handle member 50 is rotated, the yoke member ( 140) is rotated.

At this time, by reducing the friction between the lower surface of the yoke member locking jaw 142 and the protrusion 152 of the locking jaw support member 150, so that the yoke member 140 can rotate smoothly, another embodiment of the present invention 18 , a plurality of concave portions 158 may be formed on the surface of the protrusion 152 .

Thus, by reducing the friction area between the lower surface of the protrusion 152 and the engaging projection 142 by the concave portions 158, the yoke member 140 is configured to rotate smoothly even with a small force.

In addition, the clutch handle member 60 is formed in a "L" shape as a whole including the operation handle portion 62 and the rotation portion 64, and the rotation portion 64 is rotated by holding the operation handle portion 62. configured to rotate.

At this time, as shown in FIGS. 8 and 10 , in order to prevent the movement of the rotating part 64 during operation through the operation handle part 62 , the clutch handle member 60 has the locking jaw support member 150 . A blocking member 170 is disposed in the portion to which is coupled, that is, the rotating portion 64 portion.

Thus, by preventing the clutch handle member 60 from flowing during operation, reliable operation is possible even in the case of long-term operation.

Meanwhile, as shown in FIG. 15 , the terminal connection member 40 includes a connector cover member 42 for separating each connector part 41 from each other by a partition wall 44 .

A concave portion 46 for accommodating each connector 41 is formed in the connector cover member 42 , and the concave portion 46 is formed by the partition wall 44 .

Thus, it is possible to prevent moisture entering the terminal part cover housing 12 by the partition wall 44 from flowing into the connector part 41 .

At this time, irregularly minute concave portions 47 may be formed on the surface of the connector cover member 42 to prevent moisture from flowing smoothly by increasing the surface area of the connector cover member 42 .

The fine concave portions 47 may be formed by a sand blasting process in the same manner as the surface of the housing member 10 .

Alternatively, as in another embodiment of the present invention shown in FIG. 17 , the lattice-shaped convex portions 47 are formed on the inner surface of the partition wall 44 to prevent the flow of moisture.

As mentioned above, although the present invention has been described with reference to limited embodiments and drawings, the technical spirit of the present invention is not limited thereto, and by those of ordinary skill in the art to which the present invention pertains, the technical spirit of the present invention and Various modifications and variations will be possible within the scope of equivalents of the claims to be followed.

10: housing member
20: motor member
30: control unit
40: terminal connection member
50: manual operation handle member
60: clutch handle member

Claims (19)

a housing member for housing the components of the device;
a motor member disposed on one side of the housing member;
a control unit disposed on the other side of the motor member within the housing member;
a terminal connection member disposed at the center of the housing member;
a manually operated handle member disposed on the housing member;
a clutch handle member disposed on a side of the housing member;
It includes a central rotation shaft disposed in the center of the housing member,
A worm gear is disposed at an end of the rotation shaft of the motor member,
A worm wheel having the same rotational center as the central rotational shaft is disposed on the outside of the central rotational shaft to surround the central rotational shaft,
The worm gear and the worm wheel are rotated by the driving of the motor member, so that the central rotating shaft is rotated,
A yoke member is disposed between the worm wheel and the manually operated handle member,
The yoke member is formed in the shape of a hollow cone column, and a locking protrusion is formed on the outer peripheral surface of the upper end of the yoke member,
A rotation angle precision control actuator, characterized in that a locking jaw support member for supporting a lower portion of the locking jaw is disposed at an end of the clutch handle member. The method of claim 1,
A first bevel gear having the same rotational center as the central rotational shaft is coupled to the central rotational shaft under the worm wheel to surround the central rotational shaft,
The rotation angle precision control actuator, characterized in that the rotation angle detection encoder is configured to rotate by the rotation of the first bevel gear. 3. The method of claim 2,
A second bevel gear is coupled to the central axis end of the rotation angle detection encoder,
The second bevel gear is a rotation angle precision control actuator, characterized in that it is configured to rotate in conjunction with the first bevel gear. 4. The method of claim 3,
A strain gauge is disposed on the rotation shaft of the motor member, and the rotation angle precision control actuator is configured to detect the rotation angle of the worm gear. 5. The method of claim 4,
The yoke member is formed to have the same rotational center as the central rotational shaft, and the rotational angle precision control actuator, characterized in that it is arranged to surround the outside of the central rotational shaft. 6. The method of claim 5,
The yoke member is moved up and down by the manipulation of the clutch handle member, and the rotation angle precision control actuator is configured to be selectively interlocked with the worm wheel. The method of claim 1,
A rotation angle precision control actuator, characterized in that a spring is disposed on the upper portion of the yoke member. 8. The method of claim 7,
The locking jaw support member has a flat cross-sectional shape in the form of "C",
A curved protrusion is formed at an end of the locking jaw support member, and the rotation angle precision control actuator, characterized in that the upper end of the protrusion is configured to face the lower surface of the locking jaw of the yoke member. The method of claim 1,
The terminal connecting member is a rotation angle precision control actuator, characterized in that it comprises a connector cover member for separating each connector portion from each other by a partition wall. 10. The method of claim 9,
A terminal cover housing is formed outside the terminal connection member,
Rotation angle precision control actuator, characterized in that the cable inlet and outlet is formed on the side and bottom of the terminal cover housing. 11. The method of claim 10,
A precision control actuator for rotation angle, characterized in that the cable outlet formed on the side of the terminal cover housing is formed in the horizontal direction from the side of the terminal cover housing. 11. The method of claim 10,
A precision control actuator for rotation angle, characterized in that the cable outlet formed on the bottom surface of the terminal cover housing is formed in a vertical direction from the bottom surface of the terminal cover housing. 10. The method of claim 9,
A concave portion for accommodating each connector is formed in the connector cover member,
Rotation angle precision control actuator, characterized in that configured to form the concave portion by the partition wall. 14. The method of claim 13,
A rotation angle precision control actuator, characterized in that irregular fine concave portions are formed on the surface of the connector cover member. 14. The method of claim 13,
Rotation angle precision control actuator, characterized in that the grid-shaped convex portion is formed on the surface of the partition wall. The method of claim 1,
The rotating angle precision control actuator, characterized in that the paint is applied in a state in which irregular fine concave portions are formed on the surface of the housing member. The method of claim 1,
A rotation angle precision control actuator, characterized in that a blocking member is disposed at a portion of the clutch handle member coupled to the locking jaw support member. 9. The method of claim 8,
A rotation angle precision control actuator, characterized in that a plurality of concave portions are formed on the protrusion surface of the locking jaw support member.
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