KR20110060290A - Spring return valve actuater with a group of planetary gears - Google Patents

Abstract

PURPOSE: A spring return valve actuator using one planetary gear is provided to use selectively under power or under no power by using a first worm, a second worm and one planetary gear. CONSTITUTION: A spring return valve actuator using one planetary gear contains: a first worm(10) composed of a first worm shaft(11) formed on a rotary shaft(12) of a motor(15) and a corresponding first worm wheel(13); a second worm(20) composed of a second worm shaft(21) formed by extending the first worm shaft and a corresponding second worm wheel(23); a planetary gear(30) including a sun gear(31), a planetary gear and a ring gear(35); a planetary gear carrier(40) interlocking planetary gears integrally and having an output shaft(41) at the bottom; a spring shaft(50) coupled with the output shaft and provided with a stopper(52) and a windup spring(55); a brake device including a brake gear installed the outside of the ring gear; a variable worm shaft interlocking with an eccentric cam rotating by a lever at one end and separating/coupling with the outside of the ring gear; and a handle linked to the other end of the variable worm shaft by a hinge pin to provide power manually.

Description

Spring return valve actuater with a group of planetary gears

The present invention relates to a spring return valve actuator using one planetary gear body, comprising a primary worm shaft formed on a rotating shaft of a motor and a primary worm wheel formed by extending a primary worm wheel, and a secondary worm shaft formed by extending a primary worm wheel shaft. Secondary worm made of worm wheel, secondary worm wheel and coaxial sun gear, corresponding planetary gear and planetary gear body of ring gear, planetary gear interlocking together, planetary gear carrier with output shaft, output shaft and shaft Spring shaft with stopper and spring spring installed on the outer surface, brake means with brake function installed on the outer surface of ring gear, eccentric cam rotated by lever and interlocked at one end and other outer surface of ring gear Variable worm shaft to separate and combine with; And

The present invention relates to a spring return valve actuator using a planetary gear body including a handle linked to a hinge pin at another end of the variable worm shaft to manually provide power.

Spring return valve actuators are valve actuators designed to automatically open vents to prevent suffocation of smoke in the event of a power failure. The valve actuator operated in such emergency operation can be divided into pneumatic type which is operated by the force of compressed air and motor driven valve actuator which is electrically operated, and the type of emergency valve actuator which is air operated type. In case of emergency, the driving force is a spiral spring. In addition, the valve actuator acts as a motor

In the case of the emergency battery driven method, there is a mechanical method using the driving force (spiral spring). In general, the field is preferred to the battery rather than the battery, and also in the pneumatic type and motor type

In the case of pneumatic type, the air must be installed at the installation site. Therefore, the motor type which is simple to use is generally operated. The most preferred method in the field is driven by a motor, and in the case of an emergency, a spring is used. But

The motor and the mainspring are directly attached to the valve, and the electromagnetic brake is released in the event of a power failure. Therefore, the valve is directly driven to the mainspring. Therefore, a spring tension for directly driving the valve must be used. It is a factor, and a strong spring is used as a mainspring, which requires skilled workers to manufacture, which is a factor of cost increase.

For this purpose, Korean Patent Registration No. 10-0734394 was developed, but it is transferred from the primary worm shaft to the primary worm wheel that receives the power of the motor, and transfers power to the primary worm wheel and the secondary worm shaft fixed to the concentric shaft, and the secondary An actuator that opens and closes a valve connected to a secondary worm wheel that interlocks with a worm shaft.

A first planetary gear installed on the brake shaft braked when the power is applied to transfer the power of the primary worm shaft from the primary worm wheel to the sun gear shaft;

A secondary sun gear shaft coupled to the primary ring gear of the first planetary gear to rotate integrally to bond the handle worm wheel and to fix the secondary sun gear of the second planetary gear;

The second planetary gear is configured to transmit the power of the first planetary gear to the secondary worm shaft, and to sequentially transmit the power of the handle to the secondary worm shaft through the handle worm wheel, the secondary planetary gear, the secondary ring gear and the secondary ring gear shaft in the manual mode. With a gear;

And a spring winding coupled to extend the outer end of the secondary worm shaft for driving the secondary worm wheel to open and close the valve;

It is an object of the present invention to provide a spring return valve actuator configured to be indirectly provided with the restoring force of the mainspring in the event of a power failure. On the outer surface of the brake shaft, a stopper wheel with a plurality of irregularities formed on the outer surface is pressed, and the outer surface of the stopper wheel is moved vertically so that the stopper pin serving as a brake of the stopper wheel and the brake shaft is placed on the body.

However, this method has a structure in which two planetary gears are installed to extend in the longitudinal direction, and thus the overall length is increased, resulting in a large size and a large number of parts.

The present invention is to solve this problem, an object of the present invention is to use the primary worm and the secondary worm and one planetary gear when the power can be divided into the non-powered, the automatic power of the valve by using the power of its own spring when the non-powered It is possible to open the door and, if necessary, to open and close it manually in case of power failure, by using a separate variable worm shaft to open automatically at the time of power failure, but to open and close manually if necessary. It is also intended to provide a spring return valve actuator using a planetary gear that can be implemented using a planetary gear.

Another object of the present invention is to use a planetary gear and at the same time to form a vertical through hole in the secondary worm and the sun gear shaft, the vertical through hole is a rotation recognition shaft fixed to the output shaft coupled to the spring shaft, the end of By providing the opening and closing state through the transparent window, it is to provide a spring return valve actuator using a planetary gear body that can be easily installed and accurately know the opening and closing state.

Still another object of the present invention is to place a stopper defining a rotation angle horizontally on the outer periphery of the spring shaft linked to the output shaft, and to install the fixing bolt on the corresponding body so that it can rotate only within the set angle, there is no fear of malfunction In order to provide a spring return valve actuator using a planetary gear body that can maintain a small volume without an extension of the length.

To this end, the present invention is a primary worm consisting of a primary worm shaft and a corresponding primary worm wheel formed on the rotating shaft of the motor;

A secondary worm consisting of a secondary worm shaft formed by extending the primary worm wheel shaft and a corresponding secondary worm wheel;

A planetary gear body consisting of a sun gear coaxial with the secondary worm wheel, a corresponding planetary gear and a ring gear;

A planetary gear carrier which simultaneously connects the planetary gears and has an output shaft at the bottom thereof;

A spring shaft coupled with the output shaft and having a stopper and a spring spring installed on an outer surface thereof;

Brake means having a brake gear having a brake function provided on an outer surface of the ring gear;

A variable worm shaft which interlocks with the eccentric cam rotated by the lever at one end and separates and engages with another outer surface of the ring gear; And

It provides a spring return valve actuator using a planetary gear body including a handle that is manually connected to the other end of the variable worm shaft by a hinge pin to provide power manually.

The variable worm shaft and the eccentric cam are coupled to the driven bar,

The eccentric shaft of the eccentric cam is configured to engage and separate along the driven bar operating slit added to the driven bar.

The vertical axis is formed in the center of the shaft of the sun gear and the secondary worm wheel,

In the center of the output shaft, the upper part is attached to the body through the vertical through hole, and the rotation recognition shaft is installed to recognize the rotation.

The rotation state display panel is attached to the top of the rotation recognition shaft,

It is preferable to form a transparent window on the body of the corresponding rotation state display panel.

As described above, the present invention can be divided into power and non-power using primary and secondary worms and one planetary gear, and enables automatic opening using power of its own spring when power is not available, and power failure when necessary. In addition, by using a separate variable worm shaft to open and close manually, it is automatically opened at the beginning even in the event of a power failure, but can be opened and closed manually as needed, and the configuration for this also uses a planetary gear. It can be implemented.

The present invention uses a planetary gear body at the same time to form a vertical through hole in the secondary worm and sun gear shaft, the vertical through hole is a rotation recognition shaft fixed to the output shaft coupled with the spring shaft, the end of the transparent window By knowing the opening and closing state through, the opening and closing state can be easily installed and accurately known.

The present invention has a stopper horizontally on the outer periphery of the spring shaft in conjunction with the output shaft and a fixed bolt is installed on the corresponding body so that it can be rotated only within the set angle, so that there is no risk of malfunction, it is installed horizontally It is possible to maintain a small volume without extension.

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

1 is a front perspective view of the main part of the present invention, FIG. 2 is a rear perspective view of FIG. 1, FIG. 3 is an exploded perspective view of the main part of the present invention, FIG. 4 is a vertical sectional view of the assembled state of the present invention, and FIG. Fig. 6 is a horizontal sectional view showing a blocked state, Fig. 6 is a horizontal sectional view of Fig. 5, Fig. 7 is a perspective view of a main part showing a state in which the power of the handle side is coupled, Fig. 8 is a horizontal sectional view of Fig. 7,

Primary worm 10 consisting of the primary worm shaft 11 and the corresponding primary worm wheel 13 formed on the rotating shaft 12 of the motor 15;

A secondary worm 20 including a secondary worm shaft 21 formed by extending the primary worm wheel shaft 14 and a corresponding secondary worm wheel 23;

A planetary gear body 30 composed of a sun gear 31 coaxial with the secondary worm wheel 23, a corresponding planetary gear 33 and a ring gear 35;

A planetary gear carrier 40 simultaneously interlocking the planetary gears 33 and having an output shaft 41 formed thereon;

A spring shaft 50 that is axially coupled to the output shaft 41 and provided with a stopper 52 and a spring spring 55 up and down on an outer surface thereof;

Brake means (60) having a brake gear (62) having a brake function provided on an outer surface of the ring gear (35);

A variable worm shaft 70 which interlocks with the eccentric cam 73 rotated by the lever 71 at one end and separates and engages with another outer surface of the ring gear 35; And

It is configured to include a handle 77 which is linked to the other end of the variable worm shaft 70 by a hinge pin 75 to provide power manually.

The variable worm shaft 70 and the eccentric cam 73 is coupled to the driven bar 74,

The eccentric shaft 73-1 of the eccentric cam 73 is configured to engage and separate along the driven bar operating slit 74-1 added to the driven bar 74.

The body 1 corresponding to the driven bar 74 is provided with a driven bar restriction wall 101 forming a space in which the driven bar 74 is movable.

The stopper 52 is installed to maintain an angle of about 90 degrees integrally on top of the spring shaft 50,

The fixing bolt 56 is installed in the body 1 on the same horizontal plane as the stopper 52 so that the stopper 52 comes into contact with the end of the stopper 52.

A vertical through hole 37 is formed at the center of the shaft of the sun gear 31 and the secondary worm wheel 23.

The top of the output shaft 41 passes through the vertical through hole 37, the upper end is attached to the body 1 is fixed to the rotation recognition shaft 38 to recognize the rotation.

The rotation state display panel 39 is attached to the upper end of the rotation recognition shaft 38,

The transparent window 2 is formed in the body 1 of the corresponding rotation state display panel 39.

The output shaft 41 and the spring shaft 50 may be configured to be coupled to the coupling means of the uneven parts 43 and 53 vertically. 40 'is a planetary gear carrier upper plate, and the planetary gears 33 are vertically screwed together with the planetary gear carrier 40 and the carrier coalescing screw 45, as shown in FIG. The planetary gear carrier 40 and the planetary gear carrier top plate 40 ′ are composed of three planetary gears 33 and a sun gear 31 and a ring gear (3). 35) to rotate simultaneously.

The operation of the present invention configured as described above will be described.

When acting to wind the spring and close the valve by motor drive,

As shown in FIG. 3, the primary worm 10 by the primary worm shaft 11 and the primary worm wheel 13 is driven by the driving of the motor 15, followed by the primary worm wheel shaft 14 and the secondary worm wheel 23. Rotate the secondary worm wheel 23 in the clockwise direction through the primary worm 20 of the ring, the ring gear 35 is stopped by the action of the brake gear 62 constituting the brake means 60 shown in FIG. Achieve. Therefore, the planetary gear carrier 40 supporting the planetary gear 33 and the planetary gear carrier top plate 40 'are also coupled to the carrier coalescing screw 45 to rotate in a clockwise direction and integrally with the planetary gear carrier 40. Since the concave portion 43 of the output shaft 41 and the convex portion 53 of the spring shaft 50 are coupled to each other, the spring winding 55 is wound, and the valve coupled to the spring shaft 50 is not shown. Means closed. Of course, when the motor 15 rotates in the opposite direction to the above, the valve is opened by operating in the opposite direction.

In case of power failure with the valve closed,

Since the electricity supply is cut off during a power failure, the operation of the motor 15 is stopped, and at the same time, the operation of the brake means 60 configured to interrupt the operation of the ring gear by the electromagnet using electricity is also released. Then, the wound spring winding 55 is released by itself and the valve is opened. In this case, the ring gear 35 and the planetary gear 33 are rotated and the sun gear 31 is also rotated, but power is transmitted from the secondary worm shaft 21 to the secondary worm wheel 23, On the contrary, the rotation of the sun gear is stopped and the planetary gear 33 and the planetary gear carrier 40 rotate in the release direction to open the valve.

When the manual valve operates in case of power failure

Since the brake means 60 is released because the power failure, and the motor 15 is also stopped, the sun gear 31 is in a stopped state. And the valve is opened by the automatic release action of the spring. The lever 71 is turned from the state of FIG. 5 to the state of FIG. 7 for manual use in this state. Then, while the eccentric cam 73 integrated with the lever 71 rotates eccentrically, the eccentric shaft 73-1 shown in FIG. 8 is pulled through the operating slit 74-1, and the driven bar 74 is in the state of FIG. 5. The variable worm shaft 70 is gear-coupled with the ring gear 35 outer surface while moving to the state shown in FIG. Therefore, in this state, when the handle 77 is turned to the closed state of the valve, the ring gear 35 rotates counterclockwise and the planetary gear carrier 40 rotates clockwise to wind the spring winding 55 to close the valve again. This principle can be used to reopen the valve while turning the handle in the reverse direction.

In the present invention, the output shaft 41 which is interlocked with the spring shaft 50 has a rotation recognition shaft 38 vertically exposed through the vertical through hole 37, the upper end of the rotation recognition shaft 38 to display the opening and closing It has a rotating display panel 39 which can be seen through the transparent window 2, so that the user can easily know whether the valve is open or closed. The brake means 60 in the present invention is made to act to fix the rotation of the ring gear 35 using an electric brake, this configuration is shown as only brake means because it can be variously implemented, the power is applied The final process of stopping is only indicated by brake gear 62. Here, the reference numeral 65 denotes a sequential gear coupling configuration of the drive gear 63, the driven gear 64, and the brake gear 62, which perform a brake function with the electromagnet and stop the power in conjunction with the electromagnet 65. It can be illustrated.

1 is a perspective view of the planetary gear carrier and the body omitted omission of the present invention,

2 is a rear perspective view of FIG. 1;

3 is an exploded perspective view of main parts of the present invention;

Figure 4 is a vertical sectional view of the assembled state of the present invention,

Figure 5 is a perspective view of the main part showing a state in which the power on the handle side is cut off,

6 is a horizontal sectional view of FIG. 5;

Figure 7 is a perspective view of the main part showing a state in which the power of the handle side is coupled,

8 is a horizontal cross-sectional view of FIG. 7.

Explanation of symbols for the main parts of the drawings

1; body 1-1; restriction wall 2; transparent window 5,6; fixed bolt 10; primary worm 11; primary worm shaft 12; rotary shaft 13; primary worm wheel 14; primary worm wheel shaft 15; motor 20; secondary worm 21 ; Secondary worm shaft 23; Secondary worm wheel 30; Planetary gear body 31; Sun gear 33; Planetary gear 35; Ring gear 37; Vertical hole 38; Rotation recognition shaft 39; Rotation status display plate 40; Planetary gear carrier 40 '; Planetary gear carrier 41; output shaft 43; recess 45; carrier adhesion screw 50; spring shaft 52; stopper 53; convex part 55; spring winding 60; brake means 62; brake gear 63; drive gear 64; driven gear 65; electromagnet 70; variable worm shaft 71; Lever 73; eccentric cam 73-1; eccentric shaft 74; driven bar 74-1; driven bar operating slit 75; hinge pin 77; handle

Claims (7)

Primary worm 10 consisting of the primary worm shaft 11 and the corresponding primary worm wheel 13 formed on the rotating shaft 12 of the motor 15; A secondary worm 20 including a secondary worm shaft 21 formed by extending the primary worm wheel shaft 14 and a corresponding secondary worm wheel 23; A planetary gear body 30 composed of a sun gear 31 coaxial with the secondary worm wheel 23, a corresponding planetary gear 33 and a ring gear 35; A planetary gear carrier 40 integrally interlocking the planetary gear 33 and having an output shaft 41 formed at the bottom thereof; A spring shaft 50 that is axially coupled to the output shaft 41 and provided with a stopper 52 and a spring spring 55 up and down on an outer surface thereof; Brake means (60) having a brake gear (62) having a brake function provided on an outer surface of the ring gear (35); A variable worm shaft 70 which interlocks with the eccentric cam 73 rotated by the lever 71 at one end and separates and engages with another outer surface of the ring gear 35; And A spring return valve actuator using one planet gear body including a handle 77 linked to the other end of the variable worm shaft 70 by a hinge pin 75 to provide power. According to claim 1, The variable worm shaft 70 and the eccentric cam 73 is coupled to the driven bar 74, The eccentric shaft (73-1) of the eccentric cam (73) is configured to engage and separate along the driven bar operating slit (74-1) added to the driven bar (74) added to the driven bar (74). Spring return valve actuator using one planet gear. 3. The planetary gear body according to claim 2, wherein the body 1 corresponding to the driven bar 74 is provided with a driven bar limiting wall 101 forming a space in which the driven bar 74 is movable. Spring return valve actuator. According to claim 1, the stopper 52 is installed to maintain an angle of about 90 degrees integrally on top of the spring shaft 50, A spring return valve actuator using one planetary gear body, characterized in that a fixing bolt 56 is installed in the body 1 on the same horizontal plane as the stopper 52 so as to come into contact with an end of the stopper 52. According to claim 1, wherein the sun gear 31 and the secondary worm wheel 23, the center of the axis of the vertical through hole 37 is formed, Spring return valve using a planetary gear body, characterized in that the rotation recognition shaft 38 is fixed to the top of the output shaft 41 through the vertical through hole 37, the upper end is bonded to the body 1 to recognize the rotation. Actuator. The rotation state display panel 39 is attached to an upper end of the rotation recognition shaft 38. A spring return valve actuator using one planetary gear body, characterized in that a transparent window 2 is formed on the body 1 of the corresponding rotation state display panel 39. 6. The spring return valve actuator according to claim 5, wherein the output shaft (41) and the spring shaft (50) are configured to be coupled vertically by the coupling means of the uneven parts (43, 53).

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