KR101700170B1 - Apparatus for running electric valve - Google Patents

Abstract

The present invention relates to an apparatus to operate a motor-driven valve. According to the present invention, a ball decelerator comprises: a motor-driven shaft (110) connected to a motor (30); an eccentric shaft (120) combined with the motor-driven shaft (110) and having a first eccentric part (124) whose a central shaft is apart from the central shaft of the motor-driven shaft (110); a first intermediate disk (130) combined on the first eccentric part (124); a fixated disk (140) placed rearwards the first intermediate disk (130); a first middle disk (150) interposed between the first intermediate disk (130) and the fixated disk (140); an input/output disk (160) placed frontwards the first intermediate disk (130) and having a second eccentric part (166) whose a central shaft is apart from the central shaft of the motor-driven shaft (110); a worm shaft (210) connected to a manual handle (40); a second intermediate disk (220) combined on the second eccentric part (166); a manual input disk (230) placed rearwards the second intermediate disk (220) and engaged with the worm shaft (210); a second middle disk (240) interposed between the second intermediate disk (200) and the manual input disk (230); an output disk (250) placed frontwards the second intermediate disk (220); and a plurality of balls (300). According to the present invention, the ball decelerator performs deceleration twice in motor-driven operation. Thereby, motor-driven and manual operations are always connected, so an individual motor-driven/manual switching clutch is not required, and deceleration is realized through the principle of the ball decelerator. Therefore, noise is remarkably lowered in comparison with a gear deceleration manner even if a revolution speed of the motor is high.

Description

[0001] APPARATUS FOR RUNNING ELECTRIC VALVE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a motor-operated valve driving apparatus, and more particularly, to a motor-operated valve driving apparatus capable of freely opening or closing a valve by electric power or manually without a clutch for switching power and manual.

In general, a valve is a mechanism that is located in a flow path and controls the movement of the fluid by opening or closing the flow path. Depending on the structure, there are various types of valves, such as globe valves, needle valves, sluice valves, butterfly valves, electromagnetic valves, diaphragm valves, check valves, regulating valves and float valves.

In order to drive the valve as described above, it is driven by electric power using a motor or manually driven by a handle. In recent years, as in Patent Document 1, a motor is usually used, Available motorized manual valves are mainly used.

However, in the conventional valve, a clutch for switching between electric power and manual power is provided. When the clutch is used, a separate operation is required to switch electric power and manual power. Furthermore, the clutch of Patent Document 1 has a complicated structure due to the gear system, which complicates the repairing process, has a large backlash, and generates a large noise.

KR 10-1165976 B1 (July 18, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an electric manual connection box which is always connected to an electric motor and a manual handle without a clutch for switching between an electric input and a manual input, And to provide a motor-operated valve drive device which can be manually and electrically input without any operation of the motor.

In addition, the present invention provides a motor-operated valve driving apparatus in which backlash is not generated at all by utilizing a ball reducer in an electric manual connection box.

According to an aspect of the present invention, there is provided an electric valve driving apparatus including: an electric motor; A motor-operated valve driving apparatus for opening and closing a valve disc by electric or manual operation, comprising a manual handle and an electric manual connection box in which the electric motor and the manual handle are installed, the apparatus comprising: A coupled transmission shaft; An eccentric shaft coupled to the transmission shaft and having a central axis formed with a first eccentric portion spaced apart from a central axis of the transmission shaft; A first intermediate disk coupled to the first eccentric portion and having a first cyclodial groove formed along a circumference of a front surface thereof and having a plurality of first vertical translational grooves formed in parallel on a rear surface thereof; And a plurality of first horizontal translation grooves formed in the front surface of the fixed disc in a direction perpendicular to the first vertical translation groove; A first intermediate disk located between the first intermediate disk and the fixed disk and having a first vertical translation groove on the front surface and a first lateral translation groove on the rear surface; A first eccentric portion located in front of the first intermediate disk and having a first cyclodial groove corresponding to the first cyclic groove formed along a rear surface thereof and a central axis spaced apart from a central axis of the transmission shaft; Output disk; A worm shaft installed in the electric manual connection box and connected to the manual handle; A second intermediate disk coupled to the second eccentric portion and having a second cyclodial groove circumferentially formed on the front surface thereof and having a plurality of second vertical translational grooves formed in parallel on the rear surface thereof; And a plurality of second horizontal translation grooves perpendicular to the second vertical translation groove are formed in parallel on a front surface of the worm gear, the worm gear being engaged with the worm axis, disk; A second intermediate disk positioned between the second intermediate disk and the manual input disk and having a second vertical translational motion groove formed on a front surface thereof and a second lateral translation motion groove formed on a rear surface thereof; An output disc positioned forward of the second intermediate disc and having a second 'cycloid groove corresponding to the second cycloid groove formed along the rear surface; And a second vertical translational motion between the first and second cycloidal grooves, between the second and second cycloidal grooves, between the first vertical translational motion grooves, between the first horizontal translation movement grooves, And a plurality of balls interposed between the second lateral translation movement grooves.

Since the motor-driven valve driving apparatus according to the present invention is always connected to the electric motor and the manual motor, no separate motor-driven manual changeover clutch is required, and the ball is decelerated by the principle of the ball reducer. Therefore, even when the rotational speed of the electric motor is fast, It is significantly lower.

1 is a plan view showing a motor-operated valve driving apparatus according to the present invention;
Figure 2 is a cross-
Fig. 3 is a cross-sectional view of the motor-
Figs. 4 and 5 are exploded perspective views of the motor-
6 is a plan view of the eccentric shaft
7 is a cross-sectional view

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electric valve driving apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of the motor-driven manual valve; FIG. 4 is a plan view of the motor-operated valve; FIG. Fig. 6 is a plan view of the eccentric shaft, and Fig. 7 is a plan view of the input / output disk.

A motor-operated valve driving apparatus according to the present invention includes a transmission shaft 110 installed in an electric manual connection box 50 and connected to an electric motor 30; An eccentric shaft 120 coupled to the transmission shaft 110 and having a first eccentric portion 124 whose center axis is separated from the central axis of the transmission shaft 110; A first intermediate disk 124 coupled to the first eccentric portion 124 and having a first cyclodial groove 132 formed along a circumference of the front surface thereof and a plurality of first vertical translation grooves 134 formed parallel to the rear surface thereof, (130); A stationary disc (140) positioned at the rear of the first intermediate disc (130) and having a plurality of first horizontal translation grooves (142) formed in parallel on the front surface thereof perpendicular to the first vertical translation groove (134); The first transverse translation groove 152 is formed on the front surface of the first intermediate disk 130 and the fixed disk 140 and the first transverse translation groove 154 is formed on the rear surface thereof. A disk 150; A first cyclodial groove 162 corresponding to the first cyclodial groove 132 is formed along the rear surface of the first intermediate disk 130 and a center axis of the first cyclodial groove 162 is formed on the center axis of the transmission shaft 110, An input / output disc (160) having a second eccentric portion (166) separated from the first eccentric portion (166); A worm shaft 210 installed in the manual manual connection box 50 and connected to the manual handle 40; A second intermediate disk 166 coupled to the second eccentric portion 166 and having a second cyclodial groove 222 formed on the front surface thereof and a plurality of second vertical translation grooves 224 formed on the rear surface thereof in parallel, (220); A worm gear 232 is formed along the side of the second intermediate disk 220 to engage the worm axis 210 and a plurality of second lateral translation A manual input disc 230 in which a moving groove 234 is formed in parallel; A second vertical translational motion groove 242 is formed on the front surface and a second lateral translation movement groove 244 is formed on the rear surface of the second intermediate translational movement disk 242, which is located between the second intermediate disk 220 and the manual input disk 230, Intermediate disc 240; An output disc 250 positioned forward of the second intermediate disc 220 and having a second 'cycloid groove 252 corresponding to the second cycloid groove 222 formed along the rear surface thereof; And between the first and second cyclic grooves 132 and 162 and between the second and second cyclic grooves 222 and 252 and the first vertical translational motion grooves 134 and 152, And a plurality of balls 300 interposed between the second vertical translation movement grooves 224 and 242 and between the second horizontal translation movement grooves 234 and 244.

Each component will be described in detail below.

The valve gate 10 is a component that selectively blocks the flow of water. A valve shaft (20) is provided in the valve gate (10) to interlock with the rotation of the valve shaft (20) to selectively block the flow path.

The electric motor 30 is a component that provides a driving force for raising the valve gate 10, and an electric motor, a hydraulic motor, or the like can be used.

The manual handle 40 is a component that provides a driving force for raising the valve gate 10 so that when a malfunction occurs in the electric motor 30 a person directly rotates the manual handle 40 to move the valve gate 10 Open or close.

The electric manual connection box 50 is a component that is connected to the electric motor 30 and the manual handle 40 as shown in FIG. 2 and serves as an intermediary for transmitting the power transmitted from the electric motor 30 and the manual handle 40 to the valve shaft 20 .

Since the present invention decelerates the rotational speed transmitted from the electric motor 30 through two deceleration processes such as the first deceleration and the second deceleration, the components used for the first deceleration and the second deceleration are described below do. That is, in the case of the configurations indicated by the 100th generation, the first deceleration is associated with the second deceleration.

The transmission shaft 110 is installed in the electric manual connection box 50 as shown in Fig. 3, is connected to the electric motor 30, and is rotated according to the operation of the electric motor 30.

The key 112 protrudes from the outer periphery of the transmission shaft 110 and is inserted into an eccentric shaft 120 to be described later so that the rotational force of the transmission shaft 110 is transmitted to the eccentric shaft 120 without loss.

4 to 6, the eccentric shaft 120 is integrally formed with a cylindrical body 110. The eccentric shaft 120 includes a cylindrical body 110, (122); A first eccentric portion 124 protruding from the first main body portion 122 and having a center axis C2 away from the center axis C1 of the transmission shaft 110; And a first balancing portion 126 protruding from the first body portion 122 and formed at a diagonal position in a direction in which the first eccentric portion 124 is eccentric.

The first main body portion 122 is formed in a cylindrical shape with an open inside. If the key 112 is formed on the transmission shaft 110, a key groove 123 is formed in the first body portion 122 to maintain a firm connection with the transmission shaft 110 by inserting the key 112 .

The first eccentric portion 124 is formed on the first body portion 122 and eccentrically formed so that the center axis C2 is spaced apart from the center axis C1 of the transmission shaft 110 by a predetermined distance.

The first balancing portion 126 protrudes from the first main body portion 122 to balance the center of gravity of the first eccentric portion 124 away from the center axis C1 due to the rotation of the eccentric shaft 120.

The first intermediate disk 130 is a component for transferring the rotational force transmitted from the eccentric shaft 120 to the input / output disk 160 to be described later. The first intermediate disk 130 is formed in a disk shape and includes a first eccentric portion 124 A first cyclodial groove 132 is formed on the front surface, and a first vertical translation groove 134 is formed on the rear surface. A bearing is interposed between the first eccentric portion (124) and the first intermediate disk (130).

The first cyclodial groove 132 is formed continuously along the circumferential direction of the first intermediate disk 130 as shown in FIG. The first cyclodial groove 132 may be a hypocycloid curve or an epicycloid curve, which will be described later. The method of machining the first cyclodial groove 132 in a curved shape is described in detail in " Ichikung Lee, Minhwan Lee, Kwang Il Kim, Development of Curved Surface Generation Program for Ball Reducer, Spring Conference of Korea Society of Automotive Engineers, 2009, pp1273-1278 Quot;).

The first vertical translational motion groove 134 is an elongated groove formed in a long length and is formed on the rear surface of the first intermediate disk 130 and a plurality of parallel grooves are formed. As shown in FIG. 5, the first vertical translation movement grooves 134 may have a short length on both sides and a relatively long length on the upper and lower sides. At this time, the minimum length of the first vertical translational motion groove 134 is formed to match the radius of rotation of the first intermediate disk 130.

Meanwhile, the first vertical translation groove 134 may have a plurality of pairs as shown in FIG. 7 because the first intermediate disk 130 is configured to translate perpendicularly to the first intermediate disk 150. However, It is also possible to form only one on each side and on the upper and lower sides. However, in consideration of the stable movement of the first intermediate disk 130, more than one pair is preferably formed.

The fixed disk 140 is a component that transmits the rotational force transmitted from the manual handle 40 to the first intermediate disk 130 and is formed in a disk shape and fixed inside the electric manual connection box 50, 130, and a first lateral translation groove 142 is formed in the front surface.

The first transverse translation grooves 142 are formed on the front surface of the fixed disk 140, and a plurality of parallel translation grooves 142 are formed. The first horizontal translation movement groove 142 is formed perpendicular to the longitudinal direction of the first vertical translation movement groove 134. As shown in FIG. 4, the first lateral translation movement grooves 142 may have a short length on both sides and a relatively long length on the upper and lower sides. At this time, the minimum length of the first lateral translation groove 142 is formed to match the radius of rotation of the first intermediate disk 130. The first horizontal translation groove 142 is configured to translate the first intermediate disk 150 to be described later horizontally with respect to the manual input screw 150. Accordingly, multiple pairs may be formed as shown in FIG. 8, It is also possible to form only one on each side and on the upper and lower sides. However, in consideration of stable movement of the first intermediate disk 150, more than one pair is preferably formed.

The vertical transverse movement grooves 134 and the first horizontal transverse movement grooves 142 are relative to each other in the longitudinal direction and the lateral direction, The vertical relationship of the translational movement grooves 142 is satisfied. The same is true for the other translational motion grooves described below.

The first intermediate disk 150 is configured to allow the first intermediate disk 130 to rotate in a circle around the center axis C1 of the transmission shaft 110 A first vertical translational motion groove 134 is formed on the front surface and a first horizontal translation movement groove 142 is formed on the rear surface of the first intermediate translational motion groove 142. [ do. The rotation of the first intermediate disk 150 is restrained by the first lateral translation movement groove 142 of the fixed disk 140 in the fixed state so that the first intermediate disk 150 only translates when the first intermediate disk 130 swings.

4, the first vertical translational motion groove 152 is formed in the same pattern as the first vertical translational motion groove 134 of the first intermediate disk 130, And corresponds to the first vertical translational motion groove 134.

5, the first lateral translation movement grooves 154 are formed in the same pattern as the first lateral translation movement grooves 142 of the fixed disk 140, And is formed in the same pattern as the movement groove 142.

As a result, the first intermediate disk 130 is constrained through the first intermediate disk 150 and the first vertical translational motion groove 134 to be able to translate only in the longitudinal direction with respect to the first intermediate disk 150, The first intermediate disk 150 is constrained through the first transverse translation groove 154 and is only translationally transverse to the fixed disk 140. Therefore, when the eccentric shaft 120 rotates, the center axis C2 of the first intermediate disk 130 does not rotate with respect to the fixed disk 140, And is oscillated while drawing a circle around the central axis C1.

The input / output disk 160 is a component that receives the rotational force inputted from the electric motor 30 or the manual handle 40 through the first intermediate disk 130 and is positioned in front of the first intermediate disk 130, A first 'cycloid groove 162 is formed along the circumference at the rear surface.

The first 'cycloid groove 162 is continuously formed along the circumferential direction of the rear surface of the input / output disk 160 as shown in FIG. The first 'cycloid groove 162 may be formed in the form of a hypocycloidal curve or an epicycloid curve, which will be described later. And a method of machining the first'cycloid groove 162 in a curved shape is disclosed in the reference.

In addition, a second main body 164 having a cylindrical shape is formed on the front surface of the input / output disk 160; And a second eccentric portion 166 protruding from the second body portion 164 and separating the central axis C2 from the central axis C1 of the transmission shaft 110 are formed.

The second body portion 164 is formed into a cylindrical shape having an internal opening as shown in FIG.

The second eccentric portion 166 is formed on the second body portion 164 and eccentrically formed so that the central axis C2 is spaced apart from the central axis C1 of the transmission shaft 110 by a predetermined distance.

The first casing 170 is coupled to the front surface of the fixed disk 140 by bolts and includes a transmission shaft 110, an eccentric shaft 120, a first intermediate disk 130, a first intermediate disk 150, (160). The first casing 170 is formed with a front opening to allow the second body portion 164 and the second eccentric portion 166 to pass therethrough. A bearing is installed in the first casing 170 and connected to the second body 164 of the input / output disk 160.

The worm shaft 210 is installed in the electric manual connection box 50 and is connected to the manual handle 40 and interlocked with the rotation of the manual handle 40.

The second intermediate disk 220 is a component that transmits the rotational force transmitted from the input / output disk 160 to an output disk 250 to be described later. The second intermediate disk 220 is formed in a disk shape, 166, a second cyclodial groove 222 is formed on the front surface, and a second vertical translation groove 224 is formed on the rear surface. A bearing is interposed between the second eccentric portion 166 and the second intermediate disk 220.

The second cycloid groove 222 is continuously formed along the circumferential direction of the second intermediate disk 220 as shown in FIG. The second cyclodial groove 222 may be in the form of a hypocycloidal curve or an epicyclic curve, which will be described later. And a method of machining the second cycloid groove 222 in a curved shape is disclosed in the reference.

The second vertical translational motion groove 224 is an elongated groove formed in a long length, and is formed on the rear surface of the second intermediate disk 220, and a plurality of parallel grooves are formed. 5, the second vertical translation movement grooves 224 may be formed to have a short length on both sides and a relatively long length on the upper and lower sides. At this time, the minimum length of the second vertical translational motion groove 224 is formed to match the radius of rotation of the center of the second intermediate disk 220.

Meanwhile, since the second vertical translation groove 224 is configured to translate the second intermediate disk 220 in a direction perpendicular to the second intermediate disk 240, a plurality of pairs may be formed. However, And one on each of the upper and lower sides. However, in consideration of stable movement of the second intermediate disk 220, more than one pair is preferably formed.

The manual input disk 230 is a component for transmitting the rotational force transmitted from the manual handle 40 to the second intermediate disk 220. The manual input disk 230 is formed in a disk shape and has a worm gear 232 formed along a side thereof, A second transverse translation groove 234 is formed on the front surface, and is positioned behind the second intermediate disk 220. [

The second lateral translation grooves 234 are formed in front of the manual input disk 230, and a plurality of parallel translation grooves 234 are formed. The second horizontal translation movement groove 234 is formed perpendicular to the longitudinal direction of the second vertical translation movement groove 224. 4, the second lateral translation movement grooves 234 may be formed to have a short length on both sides and a relatively long length on the upper and lower sides. At this time, the minimum length of the second horizontal translation groove 234 is formed to match the radius of rotation of the center of the second intermediate disk 220.

Meanwhile, since the second transverse movement groove 234 is configured to translate the second intermediate disk 240 to be described later horizontally with respect to the manual input screw 150, as shown in FIG. 4, However, it is possible to form only one on each side and on the upper and lower sides as required. However, in consideration of stable movement of the second intermediate disk 240, more than one pair is preferably formed.

The second intermediate disc 240 is a component that transmits the rotational force of the manual input disc 230 to the second intermediate disc 220 and allows the second intermediate disc 220 to swing, A second vertical translation groove 224 is formed on the front surface of the disc 220 and a second lateral translation groove 234 is formed on the rear surface of the disc 220,

The second vertical translational motion groove 242 is formed in the same pattern as the second vertical translation movement groove 224 of the second intermediate disk 220 as shown in FIG. And corresponds to the second vertical translational motion groove 224.

The second lateral translation groove 244 is formed in the same pattern as the second lateral translation groove 234 of the manual input disk 230 as shown in FIG. And corresponds to the lateral translation movement groove 234.

The output disc 250 is a component that is finally received as a rotational force input from the electric motor 30 or the manual handle 40. The output disc 250 is positioned in front of the second intermediate disc 220 and has a second ' 252 are formed along the circumference.

The second 'cycloid groove 252 is continuously formed along the circumferential direction of the second intermediate disk 220 as shown in FIG. The second 'cycloid groove 252 may be formed in the form of a hypocycloid curve or an epicycloid curve, which will be described later. And a method of machining the second 'cycloid groove 252 in a curved shape is disclosed in the reference.

The second housing 260 is a component for protecting the worm axis 210, the second intermediate disk 220, the manual input disk 230, the second intermediate disk 240, and the output disk 250, And covers each of the above components. A bearing is installed inside the second casing 260 as shown in FIG. 3 and connected to the output disk 250.

The ball 300 is a component that mediates the rotation of the respective discs and is disposed between the first and first'cycloid grooves 132 and 162, between the second and second'cycloid grooves 222 and 252, Between the first horizontal translation movement grooves 142 and 154 and between the second vertical translation movement grooves 224 and 242 and between the second horizontal translation movement grooves 234 and 244 between the translational movement grooves 134 and 152, Respectively. It is preferable that the intervening balls 300 are positioned at least one for each of the above grooves and that the balls 300 are disposed between the first and the first'cycloid grooves 132 and 162 and between the second and the second'cycloid grooves 222 and 252 Can be maximized by an average of the number of curves forming each groove.

A bearing is provided between the first intermediate disc 150 and the first input disc 160 and between the first main body 122 of the eccentric shaft 120 and the manual input disc 230, Input and output disks 160 and 160 and the second body 164 of the input / output disk 160 so that the input / output disk 160 and each disk are independently rotated. The bearings used in this case are generally ball bearings, but others may be used.

Hereinafter, an electric and manual operation of the electric valve driving apparatus according to the present invention will be described. In the motor-operated valve driving apparatus according to the present invention, since the deceleration is performed twice in the case of power transmission, the motor-operated valve driving apparatus will be described separately.

The first deceleration when the electric motor 30 is driven causes the eccentric shaft 120 to rotate when the transmission shaft 110 is rotated by the driving of the electric motor 30 and to rotate the first eccentric portion 124 of the eccentric shaft 120 The mediating disk 130 starts to oscillate. At this time, the first intermediate disk 130 is capable of translational motion in the vertical direction due to the first intermediate disk 130 and the first vertical translational motion groove 134 formed in the first intermediate disk 150, Since the first horizontal translation movement groove 142 formed in the first intermediate disk 150 and the first intermediate translation disk 140 can translate in the horizontal direction, the swing motion can be freely performed on the fixed disk 140 in a fixed state . The swing motion of the first intermediate disk 130 causes the output disk 160 to rotate while being decelerated through the first cyclodial groove 132 and the ball 300 located in the first cyclodial groove 162. In this connection, since it is described in the '110040842', a detailed description will be omitted.

Next, the second deceleration begins when the second intermediate disk 220 rotates as the first intermediate disk 130 when the output disk 160 is rotated. The second intermediate disk 220 also includes second vertical translation grooves 224 and 242 formed in the second intermediate disk 220 and the second intermediate disk 240 and a second vertical translation wall 224 and 242 formed in the second intermediate disk 240 The second transverse movement grooves 234 and 244 formed in the first and second transverse movement parts 240 and 240 can freely swing. The oscillating motion of the second intermediate disc 220 causes the output disc 250 to decelerate and rotate through the second cyclodial groove 222 and the ball 300 located in the second'cycloid groove 252.

The first cyclodial groove 132 and the first cyclodial groove 162 may be formed of a hypocycloid curve or an epicycloid curve, When the rotation direction of the first intermediate disk 130 is the same as the rotation direction of the output disk 160 (hereinafter, referred to as 'forward direction', and when the rotation direction is different, ), The first cyclodial groove 132 is formed of a hypocycloid curve, and the first 'cycloid groove 162 is formed of an epicycloid curve. On the contrary, in the reverse direction, the first cyclodial groove 132 is formed of an epicycloidal curve, and the first 'cycloid groove 162 is formed of a hypocycloid curve. For reference, the number of the first cyclodoid grooves 132 in the forward direction is 2n-2, the number of the first cyclodial groove 162 is 2n, and the number of the balls 300 is 2n-1 (n is the reduction ratio). The number of first cyclodial grooves 162 is 2n + 2, and the number of balls 300 is 2n + 1, where n is a reduction ratio. For example, when the forward direction and the reduction ratio is 50 (1: 50), the first cyclodial groove 132 is composed of 98 epicycloidal curves, and the first cyclodial groove 162 is composed of 100 hypocycloid curves , And 99 balls 300 are positioned. The first cyclodial groove 162 is made up of 100 epicycloid curves, and the first cyclodial groove 162 is made up of 101 epicycloid curves, The ball 300 is positioned.

Likewise, the second cyclodial groove 222 and the second cyclodial groove 252 may be formed of a hypocycloid curve or an epicycloid curve, respectively, and the principle thereof is the same as that described above, so a description thereof will be omitted. In a reverse direction, the rotation direction of the output disk 250 and the rotation direction of the output disk 250 are opposite to each other. When the rotation direction of the output disk 250 is opposite to the rotation direction of the output disk 250, It should be in the other direction. That is, in the forward direction, the second cyclodial groove 222 is formed of a hypocycloid curve, the second 'cycloid groove 252 is formed of an epicycloid curve, and in the reverse direction, the second cycloid groove is formed.

As a result, since the deceleration is performed through the first deceleration and the second deceleration, the total reduction ratio is derived as a product of the reduction ratio of the first deceleration and the reduction ratio of the second deceleration. For example, when the reduction ratio of the first deceleration and the second reduction is 1/50, the total reduction ratio is 1/2500.

When the worm shaft 210 is rotated by the rotation of the manual handle 40, the manual input disk 230 engaged with the worm shaft 210 is rotated and the second intermediate disk 220 is rotated through the second intermediate disk 240 And the output disk 250 is rotated. For example, if the speed ratio is 50 (1:50), the output disk 250 rotates 49 times when the manual input disk 230 rotates 50 times, and the output disk 250 rotates 51 times if the same condition is reversed .

10: valve gate 20: valve shaft
30: electric motor 40: manual handle
50: electric manual connection box 110: transmission shaft
112: key 120: eccentric shaft
122: first main body 123: keyway
124: first eccentric portion 126: first balancing portion
130: first intermediate disk 132: first cycloid groove
134: first vertical translation movement groove 140: fixed disk
142: first horizontal translation movement groove 150: first intermediate disk
152: first vertical translation movement groove 154: first horizontal translation movement groove
160: input / output disk 162: first < RTI ID = 0.0 >
164: second main body part 166: second eccentric part
170: first casing 210: worm shaft
220: second intermediate disk 222: second cycloid groove
224: second vertical translation movement groove 230: manual input disk
232: worm gear 234: second horizontal translation movement groove
240: second intermediate disk 242: second vertical translational motion groove
244: second horizontal translation groove 250: output disk
252: second 'cycloid groove 260: second casing
300: view

Claims (3)

An electric motor (30); A manual valve 40 for opening and closing the valve disc 10 by electric or manual operation is provided with an electric manual connection box 50 in which the electric motor 30 and the manual handle 40 are installed As a result,
A transmission shaft (110) installed in the electric manual connection box (50) and connected to the electric motor (30);
An eccentric shaft 120 coupled to the transmission shaft 110 and having a first eccentric portion 124 whose center axis is separated from the central axis of the transmission shaft 110;
A first cycloconical groove 132 is formed along the circumference of the front surface of the first eccentric portion 124 and a plurality of first vertical translational grooves 134 are formed parallel to the rear surface of the first eccentric portion 124, Disk 130;
A fixed disk 140 positioned at the rear of the first intermediate disk 130 and having a plurality of first transverse movement grooves 142 parallel to the first longitudinally translated grooves 134, ;
A first vertical translational motion groove 152 is formed on the front surface and a first horizontal translation movement groove 154 is formed on the rear surface of the first intermediate disk 130, 1 intermediate disc 150;
A first cyclodial groove 162 corresponding to the first cyclodial groove 132 is formed along a circumference of the rear surface of the first intermediate disk 130 and a center axis of the first cyclodial groove 162 is disposed on a side of the transmission shaft 110, An input / output disc (160) having a second eccentric portion (166) formed on the front surface thereof, the input / output disc (160)
A worm shaft 210 installed in the manual manual connection box 50 and connected to the manual handle 40;
A second medial portion coupled to the second eccentric portion 166 and having a second cyclodial groove 222 formed on the front surface thereof and a plurality of second vertical translational grooves 224 formed on the rear surface thereof in parallel, Disk 220;
A worm gear 232 is formed along the side surface of the second intermediate disk 220 to engage with the worm shaft 210 and has a plurality of teeth 224 perpendicular to the second longitudinal translation groove 224, A manual input disk 230 in which two lateral translation grooves 234 are formed in parallel;
A second vertical translational motion groove 242 is formed on the front surface and a second horizontal translation movement groove 244 is formed on the rear surface of the second intermediate translational disk 220 and the manual input disk 230, A second intermediate disc 240;
An output disc 250 positioned in front of the second intermediate disc 220 and having a second 'cycloid groove 252 corresponding to the second cycloid groove 222 formed along the rear surface thereof,
A first transverse movement groove is formed between the first and first cyclic grooves 132 and 162 and between the second and second cyclic grooves 222 and 252 and between the first vertical translational movement grooves 134 and 152, And a plurality of balls 300 interposed between the translational movement grooves 142 and 154 and between the second vertical translation movement grooves 224 and 242 and the second transverse movement grooves 234 and 244, Wherein the control unit is configured to control the electric motor.
The method according to claim 1,
One of the first cyclodial groove 132 and the first cyclodial groove 162 is in the form of a hypocycloidal curve and the other is in an epicycloidal curve,
Wherein one of the second cyclodial groove (222) and the second cyclodial groove (252) is in the form of a hypocycloid curve and the other is in an epicycloidal curve.
The method according to claim 1,
And a first casing 170 coupled to the front surface of the fixed disk 140 to protect the first intermediate disk 130, the first intermediate disk 150, and the I / And the electric motor is driven.

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