KR101189801B1 - Dual Cylinder Operating Apparatus - Google Patents

Abstract

Dual cylinder drive is provided. The disclosed dual cylinder drive device includes a first cylinder having a hollow first casing in which an incompressible fluid is received, and a first cylinder provided in the first casing and capable of reciprocating motion, wherein the incompressible fluid is accommodated therein. A second cylinder part having a hollow second casing spaced apart from the first casing by a predetermined distance, and a second cylinder provided in the second casing and capable of reciprocating movement, the driving force being connected to the cylinder parts, respectively; And an actuator providing a passage, and a passage for interconnecting the casings to direct the flow of the incompressible fluid, wherein the incompressible fluid communicates through the conduit between the first and second casings. It is characterized in that the movement of the cylinder can be controlled at the same time.

The present invention allows the control unit to drive the cylinder of the cylinder unit using an actuator, and incompressible fluids surrounding the cylinder in the casing circulate the casing in accordance with the operation of the flow path switching valve and the switch, resulting in a gap formed between the cylinders. Can be adjusted.

Cylinder, Casing, Incompressible, Clearance, Actuator, Flow Switching Valve

Description

Dual Cylinder Operating Apparatus

The present invention relates to a dual cylinder drive device, and more particularly, to a dual cylinder drive device that allows to move in a state in which the clearance between two cylinders facing each other at a constant interval or to adjust the clearance by a predetermined distance desired. It is about.

In general, a driving device using a cylinder is widely used in equipment for driving a machine, and is used in a micro-device that requires precision. In the case of a device using a cylinder alone, there are a wide variety of functions, such as when operating as a component of an actuator used to operate an on / off valve, or when performing a reciprocating motion on an explosion stroke of fuel supplied from an engine of a vehicle. Is being applied.

In addition to the single cylinder described above, it is possible to derive and apply the concept of a dual cylinder as a concept in which a plurality of cylinders interact with each other. In the case of moving as a whole while maintaining a constant clearance between the cylinders facing each other, The same force must be applied to the sensor.In case of electrical control using a sensor or the like, most of the minute errors inevitably occur due to the sensor or the electrical signal processing, and there is a possibility that an error occurs during the precise control process. This is a problem that is very difficult to give the same driving force to both sides of the cylinder when mechanically controlled. In addition, the problem is even greater when it is necessary to adjust the displacement between the cylinders on both sides.

That is, for example, after the solidification to a predetermined volume through a process such as dissociation and dehydration in a centrifuge device for a predetermined material, it can be properly disposed in the separation space between the dual cylinders and discharged, the interval between the dual cylinders If the adjustment is not performed smoothly, it may cause a problem of shortening the life of the equipment due to the collision between the cylinders, in case of continuous production, the problem of changing the specification of each product, and the problem of lowering productivity and work efficiency.

In order to solve the above problems, the driving displacement of the cylinders is made constant or the driving displacement through the structure of connecting the casings to the circulation passage in a state in which each of the plurality of cylinders is sealed by a casing so as to surround the working fluid. It is an object of the present invention to provide a dual cylinder drive device capable of precisely controlling the separation space formed between the dual cylinders facing each other by adjusting a predetermined distance.

A dual cylinder drive device according to the present invention provided to achieve the above object comprises a hollow first casing in which an incompressible fluid is received, and a first cylinder provided in the first casing and capable of reciprocating movement. A second cylinder part having a first cylinder part, the hollow second casing accommodated therein and spaced apart from the first casing by a predetermined distance, and a second cylinder provided in the second casing and capable of reciprocating movement. And an actuator connected to the cylinder portions to provide a driving force to the cylinders, and a conduit for interconnecting the casings to guide the flow of the incompressible fluid, wherein the incompressible fluid is between the first and second casings. By communicating through the conduit, it is possible to simultaneously control the movement of the first cylinder and the second cylinder.

The conduit includes a first conduit in which a pair of flow path switching valves are arranged and a second conduit for connecting the pair of flow path switching valves, and the actuator and the flow path switching valve may be electrically connected to the controller.

The controller may maintain or change a gap, which is a separation space between the first cylinder and the second cylinder, by adjusting the opening / closing direction of the flow path switching valve.

It further comprises a hollow connection tube disposed in communication between the first casing and the second casing and having a plurality of openings, wherein the cylinders can reciprocate while maintaining the gap, and Multiple openings allow fluid communication through the interior and exterior of the connector.

The first cylinder separates the inside of the first casing into a first main chamber and a first auxiliary chamber, and the second cylinder separates the inside of the second casing into a second main chamber and a second auxiliary chamber, The flow path switching valve is a first flow path switching valve disposed on a pipe connecting the first main chamber and the second main chamber and a second flow path disposed on the pipe connecting the first auxiliary chamber and the second auxiliary chamber. It may be composed of a switching valve.

An orifice device may be provided in the second conduit between the first flow path switching valve and the second flow path switching valve to change the gap.

Gas hydrates may aggregate in the gaps in the connection pipes.

On the conduit connecting the flow path switching valve and the casing, a switch is installed in a state that can be interrupted by the controller.

The switch may include a first main opening and closing switch disposed in a conduit between the first flow path switching valve and the first main chamber, a second main opening and closing switch disposed in a conduit between the first flow path switching valve and the second main chamber, The first auxiliary switch is disposed in the conduit between the second flow path switching valve and the first auxiliary chamber, and the second auxiliary switch is disposed in the conduit between the second flow path switching valve and the second auxiliary chamber.

As the cylinders are driven, the incompressible fluid flows between the first and second main chambers through the first flow path switching valve or through the first and second auxiliary chambers through the second flow path switching valve. Will flow between them.

The incompressible fluid may flow only through the cylinder part of the cylinder part, the first and second flow path switching valves, and the orifice device.

In the dual cylinder drive device of the present invention described above, the control unit drives the cylinder of the cylinder unit using an actuator, and incompressible fluids surrounding the cylinder in the casing circulate the casing according to the operation of the flow path switching valve and the switch. As a result, the gap formed between the cylinders can be adjusted.

The present invention uses the circulation of the incompressible fluid in the process of making the gap between the cylinders constant or applying a certain variation, so that precise control is possible, so that the material solidified on the gap can be produced in a constant yield.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, a dual cylinder drive device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the overall operating concept of the dual cylinder drive of the present invention, Figure 2 is an operation diagram showing a process of operating in a state in which the dual cylinder maintains a constant displacement in the present invention, and Figure 3 is It is a diagram showing the connection relationship with each component centering on the control unit which is a component.

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

Referring to Figure 1, the dual cylinder drive device 100 will be described in detail.

The dual cylinder drive device 100 includes a first cylinder part 110, a second cylinder part 120, a first cylinder part 110, and a second cylinder that maintain a predetermined distance from the first cylinder part 110. A connector pipe 132 disposed between the parts 120 and an actuator 140 connected to the cylinder parts 110 and 120 are provided.

In the present invention, since the compressible material is inserted into the space between the first cylinder unit 110 and the second cylinder unit 120 and pressurized, it may be subjected to a process of compression molding to a predetermined volume, so that the first cylinder unit 110 ) Is preferably disposed above the second cylinder portion 120. That is, a structure that allows the dehydrated material to be introduced into the connecting pipe 132 through the process of centrifugal separation and the like may be naturally compressed by the gravity action around the connecting pipe 132. have. However, as well as the above-described vertical structure, it can be used to transform to a horizontal or inclined structure as necessary.

The first cylinder part 110 includes a hollow box-shaped first casing 111 and a first cylinder 114 that vertically reciprocates in a state where a predetermined portion is accommodated inside the first casing 111. The first cylinder 114 may be configured in the form of a "T", and consists of a first header 112 and a first loader 113. The first header 112 functions to separate the inner space of the first casing 111 into the first main chamber 110a and the second subsidiary chamber 110b, and moves up and down along the inner wall of the first casing 111. Move. The first incompressible fluid is stored in the first main chamber 110a, and the second incompressible fluid is stored in the first auxiliary chamber 110b.

In this case, it is required to make a complete seal between the inner surface of the first casing 111 and the first header 112. The first loader 113 extends into the connection pipe 132 through the first communication hole 119 formed in the lower portion of the first casing 111 while being bound to the lower end of the first header 112.

The second cylinder portion 120 is configured in a similar form to the first cylinder portion 110, in a state in which a predetermined portion is accommodated inside the second casing 121 and the second casing 121 of the hollow box shape. And a second cylinder 124 for vertical reciprocating motion. In the same configuration, the second cylinder 124 may be configured in a “T” shape, and includes a second header 122 and a second loader 123. Here, the second cylinder 124 is disposed in the form of "ㅗ" that is an inverted form of "T". The second header 122 functions to separate the inner space of the second casing 121 into the second main chamber 120a and the second auxiliary chamber 120b, and moves up and down along the inner wall of the second casing 121. Move. The first incompressible fluid is stored in the second main chamber 120a, and the second incompressible fluid is stored in the second auxiliary chamber 120b.

Even in the above case, it is required to make a complete seal between the inner surface of the second casing 121 and the second header 122. The second loader 123 extends into the connection pipe 132 through the second communication hole 129 formed in the upper portion of the second casing 121 while being bound to the upper end of the second header 122.

The connecting pipe 132 is connected to the first cylinder part 110 and the second cylinder part 120 through the first communication hole 119 and the second communication hole 129, respectively, and the inside of the cylinder part 110 and 120. The space for the loader 113, 123 is movable. The connection pipe 132 is preferably made of a high pressure resistant material resistant to pressure because a high pressure environment is created. One embodiment to which the present invention is applied is gas hydrate extraction, for example, through an opening 132a formed such that a host in which guest molecules are melted penetrates the inner and outer surfaces of the connecting pipe 132. While flowing, it may be pressurized, dehydrated and pelletized in the connection pipe 132 as a solid shape and discharged to the outside. Here, the communication holes 119 and 129 and the cylinders 114 and 124, that is, the loaders 113 and 123 are sealed, so that the second incompressible fluid is not lost to the connection pipe 132. Accordingly, the connection pipe 132 may form the opening 132a without fear of the loss of the incompressible fluid, and the fluid may be communicated in and out of the connection pipe 132 through the opening 132a.

The controller 150 is electrically connected to the actuator 140, and adjusts the cylinders 114 and 124 of the cylinder units 110 and 120 up and down. The controller 150 may drive the actuator 140 in a state in which the gap 134 between the cylinders 114 and 124 is kept constant to move the cylinders 114 and 124 a predetermined distance in the vertical direction. On the other hand, when it is necessary to adjust the gap 134, the controller 150 may precisely control the gap using the actuator 140 and the incompressible fluid flowing into and out of the cylinders 110 and 120. In addition, the controller 150 is connected to a plurality of switchgear 130 is arranged on the pipe connecting the cylinders 110, 120 to adjust the interruption. The switch 130 is composed of first and second main switch 117,127, and the first and second auxiliary switch 118,128.

Hereinafter, referring to FIG. 1 again, the operating principle of the incompressible fluid 101 and 102 in the dual cylinder drive device 100 stored in the main chambers 110a and 120a and the auxiliary chambers 110b and 120b will be described.

The first main opening 115 and the first auxiliary opening 116 are formed on the upper and lower surfaces of the first casing 111, respectively, to communicate with the first main chamber 110a and the first auxiliary chamber 110b. do. On the other hand, the upper and lower surfaces of the second casing 121, the second main opening 125 and the second auxiliary opening 126 are formed to communicate with the second main chamber 120a and the second auxiliary chamber 120b, respectively. Take

The first main opening 115 and the second main opening 125 are connected through the first flow path switching valve 160, the first auxiliary opening 116 and the second auxiliary opening 126 is switched to the second channel It takes a structure that is connected through the valve 180. The first flow path switching valve 160 and the second flow path switching valve 180 is directly connected through the connection pipe 183, the orifice device 170 is disposed on the connection pipe 183 is connected to each other. . Here, the flow path switching valves (160, 180) may be formed of a 3-way valve, respectively. The orifice device 170 may enable a smooth flow of fluid by performing a function of adjusting and measuring the flow rate of the incompressible fluid moving between the flow path switching valves 160 and 180.

Switchgear 130 is provided for intermittent flow of incompressible fluid into and out of casings 111 and 121 from the chambers 110a, 110b, 120a, and 120b.

When the switch 130 is classified according to the place where it is arranged as follows. The first main opening and closing 117 is disposed in the conduit between the first flow path switching valve 160 and the first main opening 115, and the conduit between the first flow path switching valve 160 and the second main opening 125. The second main switch 127 is disposed. Similarly, the first auxiliary switch 118 is disposed in the conduit between the second flow path switching valve 180 and the first auxiliary opening 116, and the second flow path switching valve 160 and the second auxiliary opening 126 are provided. In the conduit between the second auxiliary switch 128 is disposed.

The first and second flow path switching valves 160 and 180, the orifice device 170, the first and second main switch 117 and 127, and the first and second auxiliary switch 118 and 128 are electrically connected to the controller 150, respectively.

1 and 3, the operation of the component in a state where the gap 134 is maintained constant in the dual cylinder drive device 100 of the present invention.

The process of moving the cylinders 114 and 124 in the vertical direction with the gap 134 maintained at a constant interval is as follows. The controller 150 transmits a signal to the cylinders 114 and 124 to move by a certain displacement through the actuator 140. Accordingly, the actuator 140 applies a driving force to the first cylinder portion 110 and / or the second cylinder portion 120. Here, the first incompressible fluids stored in the first and second main chambers 110a and 120a may move along the pipeline passing through the first flow path switching valve 160. As the first incompressible fluid flows, the second incompressible fluid stored in the first and second auxiliary chambers 110b and 120b undergoes a flow along the pipeline passing through the second flow path switching valve 180. In the above process, the incompressible fluid does not flow through the connection pipe 183 connecting the first and second flow path switching valves 160 and 180. That is, the first and second flow path switching valves 160 and 180 serve as 2-way valves in the state where the orifice device 170 is closed.

As the first incompressible fluid stored in the first main chamber 110a of the first casing 111 is reduced, the first incompressible fluid stored in the second main chamber 120a of the second casing 121 is increased and the second incompressible fluid is increased. The same is true for the fluid, so that the gap 134 is kept constant by mechanical actuation through the incompressible fluid which remains constant.

Hereinafter, the operation of the component in the state where the gap 134 is changed in the dual cylinder drive device 100 according to the present invention will be described with reference to FIGS. 2 and 3.

In one embodiment of the gap variation, after the control unit 150 transmits a signal to the cylinders 114 and 124 to move as a whole as a first displacement through the actuator 140, one of the first cylinder 114 or the second cylinder 124 The additional signal is transmitted to one cylinder to move by the second displacement.

The movement by the first displacement is the same as the operation concept in the state where the above-described gap 134 is kept constant and will be omitted below.

For example, a process of operating by the movement signal by the second displacement is as follows. The controller 150 instructs the second cylinder 124 to move by the second displacement. In this process, the connector connected to the first cylinder part 110 in the internal connection structure of the first flow path switching valve 160 and the second flow path switching valve 180 each consisting of a three-way valve is closed. As a result, the first flow path switching valve 160 communicates only with the second casing 121 and the second flow path switching valve 180, and the second flow path switching valve 180 communicates with the second casing 121 and the first flow path. Only the switching valve 160 is in a state of communicating.

In this state, the second cylinder 124 is moved downward by a second displacement so that the first incompressible fluid of the second main chamber 120a is transferred to the second main switch 127, the first flow path switching valve 160, and the orifice device. It flows into the second auxiliary chamber 120b through the 170, the second flow path switching valve 180, and the second auxiliary switch 128. By the above process, the existing constant gap 134 is modified to the deformation gap 137. In FIG. 2, the dotted line shows the movement path of the incompressible fluid when moving by the first displacement, and the dashed dashed line shows the movement path of the incompressible fluid when moving by the second displacement.

Another embodiment of the gap variation may be a method of simultaneously moving the first displacement and the second displacement. In this method, the orifice device 170 is controlled by the controller 150 in a state in which the first and second flow path switching valves 160 and 180, the first and second main switch 117 and 127, and the first and second auxiliary switch 118 and 128 are all opened. This can be achieved by simply adjusting the direction and flow rate of the incompressible fluid through. For example, if the control unit 150 controls to flow only about 10% of the amount flowing from the first flow path switching valve 160 to the second flow path switching valve 180 through the orifice device 170 is incompressible Fluids are allowed to move to their respective storage locations through free flow in the dual cylinder drive 100.

The dual cylinder drive device 100 according to the present invention allows the controller 150 to drive the cylinders 114 and 124 of the cylinder parts 110 and 120 using the actuator 140, and surrounds the cylinders 114 and 124 in the casings 111 and 121. The incompressible fluids that are wrapped circulate through the casings 111 and 121 according to the operation of the flow path switching valves 160 and 180 and the switch 130, thereby adjusting the gap 134 formed between the cylinders 114 and 124.

As described above, the present invention has the advantage of preventing the deformation of the solids formed between the cylinders and increasing productivity by precisely controlling the driving of the cylinders facing each other while maintaining a constant spacing intervals. Will be.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

1 is a configuration diagram showing the overall operation concept of the dual cylinder drive of the present invention,

2 is an operation diagram showing a process of operating in a state in which the dual cylinder maintains a constant displacement in the present invention, and

3 is a diagram showing a connection relationship with each component centering on a control unit which is a component of the present invention.

<Description of the symbols for the main parts of the drawings>

100: dual cylinder drive device 110 first cylinder portion

110a: primary chamber 110b: primary chamber

111: first casing 112: first header

113: first loader 114: first cylinder

115: first opening 116: first auxiliary opening

117: the first main switchgear 118: the first secondary switchgear

119: first communication hole 120: the second cylinder

120a: 2nd main chamber 120b: 3rd auxiliary chamber

121: second casing 122: second header

123: second loader 124: second cylinder

125: second opening opening 126: second auxiliary opening

127: 2nd switchgear 128: 2nd auxiliary switchgear

129: second communication hole 130: switchgear

132 connector 134: gap

140: actuator 150: control unit

160: first flow path switching valve 170: orifice device

180: second flow path switching valve

Claims (11)

A first cylinder part 110 having a hollow first casing 111 in which an incompressible fluid is received, and a first cylinder 114 provided in the first casing 111 to reciprocate; The incompressible fluid may be accommodated therein, and the second casing 121 may be spaced apart from the first casing 111 by a predetermined distance, and the second cylinder 124 may be provided in the second casing 121 to reciprocate. The second cylinder unit 120 having a; An actuator (140) connected to the first cylinder (114) and the second cylinder (124) to provide a driving force to the cylinders (114, 124), respectively; A hollow connecting pipe 132 disposed to communicate between the first casing 111 and the second casing 121; And A first conduit connecting the first casing 111 and the second casing 121 to enable flow of the incompressible fluid; Including, As the incompressible fluid communicates through the first conduit, the gap 134 between the first cylinder 114 and the second cylinder 124 in the connecting pipe 132 may be kept constant. Dual cylinder drive characterized in that. The method of claim 1, The first cylinder 114 separates the inside of the first casing 111 into a first main chamber 110a and a first auxiliary chamber 110b, and the second cylinder 124 is connected to the second casing ( The inside of the 121 is separated into a second main chamber 120a and a second auxiliary chamber 120b, The first pipe line, And a main pipe connecting the first main chamber 110a and the second main chamber 120a and an auxiliary pipe connecting the first auxiliary chamber 110b and the second auxiliary chamber 120b. Dual cylinder drive. 3. The method of claim 2, The dual cylinder drive device, And a second conduit for connecting the main conduit and the auxiliary conduit. The method of claim 3, The dual cylinder drive device, Further comprising a flow path switching valve disposed on the first conduit, The flow path switching valve is a dual cylinder drive device, characterized in that consisting of a first flow path switching valve (160) disposed on the main pipe path and the second flow path switching valve (180) disposed on the auxiliary pipe path. The method of claim 1, The connecting pipe (132) is a dual cylinder drive device, characterized in that fluid communication through the inside and the outside of the connecting pipe (132) through a plurality of openings (132a) formed on the outer peripheral surface. 5. The method of claim 4, The dual cylinder drive device, characterized in that for changing the gap (134) by controlling the flow path switching valve on the first conduit, or by controlling the orifice device (170) on the second conduit. The method of claim 1, Dual cylinder drive, characterized in that the gas hydrate can be aggregated in the gap in the connecting pipe (132). 5. The method of claim 4, Dual-cylinder drive device characterized in that the opening and closing on the pipeline connecting the flow path switching valve and the casing (111,121) in a state that can be interrupted by the control unit. 9. The method of claim 8, The switch 130 is a first main switch 117, the first flow path switching valve 160 and the first flow path is disposed in the conduit between the first flow path switching valve 160 and the first main chamber (110a). The second main switch 127 disposed in the conduit between the two main chambers 120a, and the first auxiliary switch 118 disposed in the conduit between the second flow path switching valve 180 and the first auxiliary chamber 110b. And a second auxiliary switch 128 disposed in a conduit between the second flow path switching valve 180 and the second auxiliary chamber 120b. 10. The method of claim 9, As the cylinders 114 and 124 are driven, the incompressible fluid flows between the first main chamber 110a and the second main chamber 120a or through the second flow path switching valve 160. Dual cylinder drive device, characterized in that flow between the first auxiliary chamber (110b) and the second auxiliary chamber (120b) through a valve (180). The method according to claim 6, The incompressible fluid is a dual cylinder drive device, characterized in that the flow through only one of the cylinder portion of the cylinder portion, the first and second flow path switching valve, and the orifice device (170).

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