KR20170112178A - As the same time with the actuator a damper function and speed control function - Google Patents

Abstract

According to an aspect of the present invention, there is provided a driving apparatus for a vehicle, including: a driving cylinder unit; an actuator unit provided at one side of the driving cylinder unit, the actuator unit being operated according to driving of the driving cylinder; And a damper device for providing a damper function is provided on the other side of the driving cylinder part. The damper device according to claim 1, wherein the damper device comprises: An actuator provided at the same time is provided.
As described above, according to the actuator having both the damper function and the speed control function according to the present invention, it is possible to prevent the collision between the piston and the driving cylinder, thereby preventing an accident caused by the damage of the actuator.

Description

[0001] The present invention relates to an actuator having a damper function and a speed control function at the same time,

The present invention relates to an actuator having both a damper function and a speed control function. More particularly, the present invention relates to a damper function having a damper device for providing a damper function and a speed control device for controlling the speed of the actuator And an actuator having the same function simultaneously.

In general, a valve actuator is used to control the opening and closing of a valve in order to control the flow rate, pressure, and speed of the pipeline in a large-sized pipeline through which gas or liquid such as gas, oil,

Here, the actuator means an auxiliary driving means connected to a predetermined device and provided to the driving portion of the device for providing the forward or backward force or rotational force generated by the hydraulic or pneumatic pressure.

In addition, when the device is small, an electric actuator is used, but in the case of a large product, the use of a hydraulic or pneumatic actuator is mainly used.

Pneumatic valve actuators are the most commonly used actuators for automatic valves. They are simple in structure, low in failure rate, fast in operation, low in risk of explosion because they do not require electricity.

In addition, the large-sized pneumatic valve actuators are mainly used in the plant industry, and there is a great demand in the market for high-speed, high-output products of rapid exhaust type for shortening the valve operation time.

Generally, the pneumatic valve actuator is moved in the piston together with the low-speed spring compressing operation when the air is introduced into the driving cylinder portion, and the movement of the valve is also interlocked as the rotation axis of the yoke is rotated by 90 °. Lt; / RTI >

When the air in the driving cylinder portion of the pneumatic valve actuator is exhausted, the piston rod and the piston are moved by the pressure change. As the compressed spring is expanded by the restoring force in interlock with the piston rod, .

The valve is closed by interlocking with the high-speed, high-load movement of the piston, and the piston and the driving cylinder collide with each other and stop.

The durability of the actuator is deteriorated by the breakage of the driving cylinder due to the impact caused by the impact, and safety devices for speed control and shock prevention are indispensably required due to the risk of occurrence of a large accident when used in a plant.

Therefore, in order to prevent defects and breakage due to the impact, the conventional actuator uses a shock absorbing method using a shock absorber such as a cushion absorber or a damper cushion. However, vibration due to impact due to impact upon contact with the damper cushion, And durability due to repetitive shock absorption due to high-speed operation.

In addition, the safety device using the air cushion prevents the impact by controlling the operation of the piston by the cushioning operation using the air cylinder internal pneumatic pressure. However, it is difficult to realize the rapid exhausting performance of the actuator due to the speed drop due to the pneumatic pressure, There is a problem that an air cylinder and an air cushion must be applied.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a damper function for controlling an operation time of an actuator and preventing a shock caused by a collision between a piston and a driving cylinder, And to provide an actuator provided with the actuator at the same time.

However, the object of the present invention is not limited to the above-mentioned object, and another object which is not mentioned can be understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a driving apparatus for a vehicle, including: a driving cylinder unit; an actuator unit provided at one side of the driving cylinder unit, the actuator unit being operated according to driving of the driving cylinder; And a damper device for providing a damper function is provided on the other side of the driving cylinder part. The damper device according to claim 1, wherein the damper device comprises: An actuator provided at the same time is provided.

In addition, the driving cylinder part includes a piston and one side rod and both side rods provided on both sides of the piston, and the other side rod is connected to the rod of the speed control device and is operated, and the one side rod is connected to the rod And an actuator spring unit connected to the actuator, wherein the damper function and the speed control function are simultaneously provided.

The speed control device is provided with an air cylinder for controlling the speed through the pressure of the air, the rod of the air cylinder being connected to the other rod of the driving cylinder, and the air cylinder rod is provided with an end Wherein the piston of the driving cylinder moves at the same speed in accordance with the movement of the piston of the air cylinder so that the moving speed of the piston of the driving cylinder is controlled according to the speed of the air cylinder piston. And an actuator having a speed control function at the same time.

In addition, the speed control device operates only when the piston of the driving cylinder moves in the direction of the actuator or in a direction opposite to the direction, and an actuator having both the damper function and the speed control function is provided.

The damper device includes a pressure control damper for controlling the air pressure inside the air cylinder at one side of the air cylinder and a pipe for connecting the pressure control damper and one side of the inside of the air cylinder. An actuator having a function and a speed control function at the same time is provided.

Further, in the pipe, a check valve is further provided between the pressure control damper and one side of the air cylinder, and air is supplied to one side of the air cylinder. A provided actuator is provided.

The pressure control damper is configured to control an air pressure at one side of the air cylinder to control the speed of the piston of the air cylinder. An actuator having both a damper function and a speed control function is provided.

The pressure control damper may further include a pressure increase mode for controlling the air pressure at one side of the air cylinder and gradually increasing the air pressure by maintaining an off state in which the air is not exhausted, Wherein the damper function is performed by the pressure increase mode and the speed control function is performed by the pressure equalization mode by providing the same pressure mode in which the air pressure is kept constant by maintaining the on- An actuator having a function and a speed control function at the same time is provided.

Also, the pressure control damper is provided with a damper function and a speed control function, both of which are provided with pressure adjusting means for determining an off state and an on state.

As described above, according to the actuator having both the damper function and the speed control function according to the present invention, it is possible to prevent a collision between the piston provided in the driving cylinder part and the driving cylinder part, There is an effect.

When the internal pressure of the air cylinder reaches the upper limit value in the high-speed operation due to the rod reciprocating movement of the actuator, the pressure control damper is actuated to perform the rapid evacuation so that the decelerating motion of the actuator rod is converted into the constant- There is an effect that speed can be adjusted.

Further, since the pressure upper limit value at which the rapid exhaust operation is performed through the pressure control damper can be adjusted, the operation time of the actuator can be adjusted through the adjustment of the quick exhaust time point.

The damper device and the speed control device are simple structure in which the air cylinder, the pressure control damper and the check valve are connected by a pipe. Since the pressure can be controlled by the pressure control damper, the damper device and the speed control device can be mounted regardless of the actuator capacity. The durability is excellent and the maintenance cost is low.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exemplary view showing an actuator having both a damper function and a speed control function according to the present invention. Fig.
2 is a sectional view of a drive cylinder portion, a speed control device, and a damper device of an actuator according to the present invention.
3 is an enlarged view of a damper device according to the present invention.
4 is a cross-sectional view illustrating an operation state when air is introduced into a driving cylinder portion according to the present invention;
5 is a cross-sectional view illustrating an operation state of the driving cylinder unit according to the present invention when air is discharged.
6 is a cross-sectional view showing an air moving direction in a damper device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as exemplifications of the constituent elements set forth in the claims of the present invention, and are included in technical ideas throughout the specification of the present invention, Embodiments that include components replaceable as equivalents in the elements may be included within the scope of the present invention.

2 is a cross-sectional view of a drive cylinder portion, a speed control device, and a damper device of an actuator according to the present invention. FIG. 3 is a cross-sectional view of the damper device, 4 is a cross-sectional view illustrating the operation of the damper device according to the present invention when the air is introduced into the drive cylinder portion according to the present invention. FIG. 5 is a cross- 6 is a cross-sectional view showing an air moving direction in the damper device according to the present invention.

1, an actuator 10 according to the present invention includes a driving cylinder unit 100, an actuator unit 200, an actuator spring unit 300, a speed control unit 400, a damper unit 500 ).

The actuator unit 200 is provided at one side of the driving cylinder unit 100 and is operated according to driving of the driving cylinder.

The actuator spring unit 300 is provided on one side of the actuator unit 200 and adds a driving force to the actuator 10.

A speed control device 400 for controlling the moving speed of the actuator unit 200 and a damper device 500 for providing a damper function are provided on the other side of the driving cylinder unit 100.

Referring to FIG. 2, a piston 110 is provided in the driving cylinder part 100. One side rod (120) and the other side rod (130) are provided on both sides of the piston (110).

The other rod 130 is connected to the rod 420 of the speed control device 400 and the one rod 120 is connected to the rod 210 of the actuator 200 and the actuator spring 200. [ (300).

Meanwhile, the speed control device 400 is provided with an air cylinder 410 for controlling the speed through the pressure of air.

The rod 420 of the air cylinder 410 is connected to the other rod 130 of the driving cylinder 100 and the piston 420 is connected to the other end of the air cylinder rod 420, 430 are formed.

At this time, the air cylinder rod 420 and the other rod 130 of the driving cylinder are coupled through a bracket (not shown) as one embodiment, and are connected to each other when the one rod 120 and the other rod 130 reciprocate linearly And moved together.

The piston 120 of the driving cylinder 100 moves at the same speed in accordance with the movement of the piston 430 of the air cylinder 410 so that the piston 120 of the driving cylinder moves in accordance with the speed of the air cylinder piston 430 Is controlled.

The speed control device 400 is operated only when the piston 120 of the driving cylinder moves in the direction of the actuator 200 or in a direction opposite to the direction.

Referring to FIGS. 2 and 3, the damper device 500 includes a pressure control damper 510, a check valve 530, and a pipe 520.

At this time, the pressure control damper 510 is installed at one side of the air cylinder 410 to control the air pressure inside the air cylinder 410.

The pipe 520 is connected to the pressure control damper 510 and one side of the air cylinder 410.

The check valve 530 is provided between the pressure control damper 510 and one side of the inside of the air cylinder 410 in the pipe 520 to supply air to one side of the air cylinder 410 do.

The pressure control damper 510 controls the air pressure at one side of the air cylinder 410 to control the speed of the air cylinder piston 430.

The pressure control damper 510 controls the air pressure at one side of the air cylinder 410.

A pressure increase mode in which the air pressure is gradually increased by maintaining an off state in which the air is not exhausted and a pressure increase mode in which the air pressure is held constant by maintaining the on- Mode.

Therefore, the damper function is performed by the pressure increase mode and the speed control function is performed by the pressure equalization mode.

In addition, the pressure control damper 510 has a pressure regulating means 511 for determining an off state and an on state.

The pressure regulating means 511 includes a pressure regulating handle 512, a damper stopper 513, a damper spring 514, a damper rod 517, an exhaust passage 515 and an exhaust port 516 .

The damper stopper 513 can be vertically adjusted by the pressure adjusting handle 512. [

At this time, the damper spring 513 is provided below the damper stopper 513 to support the damper stopper 513, and the damper spring 514 is compressed by the damper stopper 513.

In addition, the pressure regulating means 511 is formed with an exhaust passage 515 through which air flowing through the pipe 520 moves.

And an exhaust port 516 connected to the exhaust passage 515 through which the air introduced through the pipe 520 is discharged.

At this time, the damper rod 517 is located in the exhaust passage 515 and is provided below the damper stopper 513 to open / close the exhaust passage 515.

The check valve 530 includes an intake port 531, an intake passage 532, an opening and closing member 533, a valve spring 534, and an intake pipe 535.

The intake port 531 is formed so that air is sucked from the outside and an intake passage 532 connected to the intake port 531 to move air sucked from the outside is connected to the intake pipe 535 .

The intake pipe 535 is connected to the pipe 520. The opening and closing member 533 is located in the intake passage 532 and opens and closes the intake passage 532 and is provided with a valve spring 534 which is compressed by the opening and closing member 533.

Referring to FIGS. 4 and 6, an air valve 140 is formed in the driving cylinder 100 to suck and exhaust external air in one direction with respect to the piston 110.

When the air is introduced into the driving cylinder part 100 through the air valve 140, the piston 110 moves to the other side so that the actuator rod 210 moves to the other side, and the actuator part spring part 300 The spring 310 is compressed.

In accordance with the linear motion of the rods 210, 120, and 130, the air cylinder rod 420 coupled to the other rod 130 through the bracket is moved to the other side.

At this time, the air existing on the other side of the air cylinder 410 is exhausted through the exhaust port 440 formed on the other side of the air cylinder 410 based on the air cylinder piston 430.

Air is introduced into one side of the air cylinder 410 through the check valve 530 with reference to the air cylinder piston 430.

That is, as the piston 430 of the air cylinder 410 moves to the other side, the inner pressure of the one side of the air cylinder 410 is reduced (lower than the atmospheric pressure) with respect to the piston 430.

The external air is sucked through the intake port 531 of the check valve 530 by the pressure change of the one side of the air cylinder 410 and the opening and closing member 534 is opened by the pressure of the air sucked from the outside As the valve spring 534 is pushed down, the intake passage 532 is opened and air flows into one side of the inside of the air cylinder 410 through the pipe 520.

5 and 6, when the internal pressure of the driving cylinder 100 is lowered through the air valve 140, the spring 310, which was compressed in FIG. 4, 5 as shown in Fig.

That is, the spring 310 of the actuator part spring part 300 applies driving force to the actuator 10 by the restoring force while restoring the spring 310 in the compressed state .

Further, due to the expansion force of the spring 310, the rods 210, 120 and 130 linearly move to one side at a high speed and a high load.

Accordingly, the air cylinder piston 430 interlocked with the other rod 130 is also moved to one side and the rod 210, 120, or 130 is moved upward as the air pressure rises from one side of the air cylinder 410 with respect to the air cylinder piston 430, .

As the air pressure rises from one side of the inside of the air cylinder 410 with respect to the air cylinder piston 430, the high-pressure air flows through the exhaust port of the pressure control means 511 communicating with the pipe 520 516, respectively.

At this time, when the pressure of the high-pressure air flowing into the pipe 520 from the air cylinder 410 exceeds the compressive load of the damper spring 514, the damper rod 517 rises and flows into the exhaust passage 515 are opened to exhaust the high-pressure air.

As the high pressure air is supplied from one side of the inside of the air cylinder 410 with respect to the air cylinder piston 430, the pressure reduction of the one side of the air cylinder 410 and the deceleration of the rods 210, 120, At start-up, it is converted to constant-velocity motion.

The upper limit of the pressure inside the air cylinder 410 can be set according to the compression length of the damper spring 514 by changing the tightening position of the pressure adjusting handle 512 of the damper spring 514.

The exhaust timing of the air cylinder 410 is adjusted according to the set pressure upper limit value, and thus the speed of the rods 210, 120, and 130 can be controlled through adjustment of the exhaust timing.

Therefore, the speed control of the rods 210, 120, and 130 is performed by the actuator 10 according to the present invention through air pressure and exhaust operation control, and accordingly, the operation time of the actuator 10 corresponding to the user's required time, 110 and the cylinder 100 can be prevented from being damaged.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: actuator 100: drive cylinder part
110: piston 120: one side rod
130: other side rod 140: air valve
200: actuator part 210: actuator rod
300: actuator spring part 310: spring
400: speed control device 410: air cylinder
420: air cylinder rod 430: air cylinder piston
440: Air cylinder exhaust port 500: Damper device
510: Pressure control damper 511: Pressure regulating means
512: pressure adjusting handle 513: damper stopper
514: Damper spring 515:
516: exhaust port 517: damper rod
520: Pipe 530: Check valve
531: Intake port 532: Intake passage
533: opening / closing member 534: valve spring
535: intake pipe

Claims (9)

A driving cylinder portion; Wow,
An actuator unit provided at one side of the driving cylinder unit and operated according to driving of the driving cylinder; Wow,
An actuator spring unit disposed at one side of the actuator unit, the actuator spring unit applying a driving force to the actuator; Respectively,
A speed control device for controlling a moving speed of the actuator; And a damper device for imparting a damper function; Is provided on the other side of the driving cylinder portion.
2. The apparatus according to claim 1,
A piston, and a rod provided on both sides of the piston and the other rod,
Wherein the other rod is connected to a rod of the speed control device and is operated,
And the one side rod is connected to the rod of the actuator and the actuator spring portion to operate the damper function and the speed control function.
3. The speed control apparatus according to claim 2,
An air cylinder for controlling the speed through the pressure of air is provided, the rod of the air cylinder is connected to the other rod of the driving cylinder,
The piston of the driving cylinder moves at the same speed according to the movement of the piston of the air cylinder so that the piston of the driving cylinder moves at the same speed according to the speed of the air cylinder piston, Wherein the moving speed of the damper and the speed of the actuator are controlled.
4. The speed control apparatus according to claim 3,
Wherein the actuator is operated only when the piston of the drive cylinder moves in the direction of the actuator or in a direction opposite to the direction of the actuator.
4. The damper device according to claim 3,
A pressure control damper for controlling an air pressure in the air cylinder at one side of the air cylinder,
And a pressure control damper and a pipe connected to one side of the inside of the air cylinder.
6. The method of claim 5,
A check valve is further provided between the pressure control damper and one side of the inside of the air cylinder,
And the air cylinder is provided to supply air to one side of the air cylinder.
The pressure control damper according to claim 5,
Wherein the actuator is configured to control the air pressure at one side of the air cylinder and to control the speed of the piston of the air cylinder.
The pressure control damper according to claim 7,
A pressure increasing mode for controlling the air pressure at one side of the air cylinder and maintaining the off state in which the air is not exhausted to gradually increase the air pressure;
And a pressure equal mode in which the air pressure is kept constant by maintaining the on state for exhausting the air,
Wherein the damper function is performed by the pressure increase mode and the speed control function is performed by the pressure equalization mode.
The pressure control damper according to claim 8,
And a pressure adjusting means for determining an off state and an on state, wherein the actuator includes a damper function and a speed control function.

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