KR20110070951A - Fluid pressure cylinder with booster pump - Google Patents

Fluid pressure cylinder with booster pump Download PDF

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Publication number
KR20110070951A
KR20110070951A KR1020090127591A KR20090127591A KR20110070951A KR 20110070951 A KR20110070951 A KR 20110070951A KR 1020090127591 A KR1020090127591 A KR 1020090127591A KR 20090127591 A KR20090127591 A KR 20090127591A KR 20110070951 A KR20110070951 A KR 20110070951A
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KR
South Korea
Prior art keywords
pump
chamber
piston
booster
hydraulic
Prior art date
Application number
KR1020090127591A
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Korean (ko)
Inventor
주재석
Original Assignee
주재석
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Priority to KR1020090127591A priority Critical patent/KR20110070951A/en
Publication of KR20110070951A publication Critical patent/KR20110070951A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Abstract

The present invention forms a first pressure chamber (10b) between the reverse operating chamber (10a) and the boosting operation chamber (20b), the operating rod piston 11, and between the boosting operation chamber (20b) and the hydraulic oil storage chamber (20a). The second pressure chamber 30b is formed in the piston 33 between the hydraulic oil storage chamber 20a and the forward operation chamber 30a by being connected to the overflow bore check valve 25 incorporating the overflow bore 3. The rod piston 44 is supported by the compression spring 45, and forms a check valve splice 61 connecting the pump forward operation chamber 40a and the pump reverse operation chamber 40b inside the boost rod piston 44. The booster pump and the hydraulic oil storage chamber for continuously generating high pressure by repeatedly inserting and increasing the pump booster rod 2 formed integrally with the pump piston 44 into the overflow bore 3 of the overflow bore valve 25. It relates to a hydraulic cylinder with a booster pump composed of (20a).

Figure P1020090127591

Pump, cylinder, overflow bore, overflow bore check valve, check valve spout, pneumatic, hydraulic, piston, seal, hydraulic oil storage chamber, piston

Description

          Hydraulic cylinder with booster pump {FLUID PRESSURE CYLINDER WITH BOOSTER PUMP}

          In order to overcome the output limitation of the hydraulic booster cylinder, the present invention increases the pressure of the conventional hydraulic pressure booster only once, and adds the function of the booster pump and the hydraulic oil storage chamber to the hydraulic cylinder to continuously increase the pressure. It is to increase the distance.

           A booster pump is formed in the hydraulic cylinder, and a check valve spun 61 is formed in the pump piston 44 so that the pump booster rod 2 continuously inserts and retracts, and the pump booster rod 2 It is a technology that continuously increases pressure when the booster rod is inserted and retracted by supplying hydraulic fluid to the booster operation chamber 20b through the overflow bore valve 25 to the piston inside the cylinder.

            Conventional hydraulic pressure-increasing cylinder has a disadvantage in that the pressure-increasing flow rate is limited, the inner diameter of the pressure intensifier and the electric length is increased in proportion to the pressure distance, but the present invention repeatedly inserts and retracts the pressure-increasing rod to increase pressure. It is a problem to extend the pressurizing distance by filling the vacuum in the booster rod backwards with the hydraulic oil by the piston inside the cylinder during the reverse movement.

            A booster pump is formed at the rear of the hydraulic cylinder piston, and a hydraulic oil storage chamber and a piston for selectively pressurizing the hydraulic oil are formed inside the booster pump, and the booster pump is operated repeatedly after the hydraulic cylinder is advanced, and the booster pump is repeatedly inflated. Hydraulic oil is supplied automatically.

       Conventional hydraulic pressure-increasing cylinders can not be used as widely as conventional hydraulic cylinders due to the limitation of the pressurization distance is limited in the spread despite the energy saving and quiet operation characteristics.

The hydraulic cylinder with booster pump can pressurize as much as the cylinder stroke distance like the existing hydraulic cylinders, so it is possible to press operation only by the internal air pressure without purchasing a hydraulic unit.

         A feature of the present invention for achieving the above object is that the pneumatic passage 10 for the backward is formed in communication with the reverse operating chamber (10a) acting on the operating rod piston 11, the forward operating chamber ( A pneumatic passage 30 communicating with 30a is formed, and the forward operation chamber 30a acts on the piston 33 to act on the hydraulic oil in the hydraulic oil storage chamber 20a, and the pressure-increasing operation chamber 20b and the hydraulic oil storage chamber 20a. There is a main body 1 therebetween, and in the main body 1, the overflow bore 3 and the overflow bore shock valve 25 are formed, and the piston 44 integrated in the pump booster rod 2 has a compression spring ( Supported by the pump reverse operation chamber 40b formed of 45, the pump forward operation chamber 40a communicating with the pneumatic passage 40 for pump forward is formed, and the pump reverse operation chamber 40b inside the piston 44. ) And the pneumatic cylinder for the forward connection connected to the forward operation chamber 30a in the structure formed of the check valve spun 61 communicating with the pump forward operation chamber 40a. When the pneumatic pressure is introduced into the 30, the working rod piston 11 is advanced by the pressure of the hydraulic oil storage chamber 20a and the booster operation chamber 20b, and the pneumatic pressure is passed through the pneumatic passage 40 communicating with the pump forward operation chamber 40a. When it flows in, the piston 44 integrated in the booster rod 2 is advanced in the state where the valve valve 61 is closed, and the valve valve 61 at this time is compressed by the pneumatic pressure of the pump advance operation chamber 40a. 62) is pressed and closed, and when the piston 44 continues to advance and contacts the block 51, the check valve spun 61 pushes back against the block 51 to open the pneumatic pressure of the pump forward operation chamber 40a. When the air is discharged into the pneumatic passage 50 through the check valve spring 61 and the pump reverse operation chamber 40b, the piston 44 integrated in the booster rod 2 is retracted by the compression spring 45. When the head cover 62 comes into contact with the head cover 62, the check valve spun 61 again displaces the rear pump reverse operation chamber 40b and the pump forward operation chamber 40a from the head cover 62. And, a piston 44 integrated with the booster rod (2) is still flowing into the pneumatically gongang passage 40, and again advancing is repeated, the forward and backward motion.

          Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

          1 to 12 are diagrams illustrating a hydraulic cylinder with a booster pump according to an embodiment of the present invention.

           According to an embodiment of the present invention, when the operating rod piston 11 retracts when the operating rod piston 11 flows in the pneumatic passage 10 in order to retract in FIG. The pressure of the hydraulic oil rises, pushes the pump booster rod 2, and sends the hydraulic oil to the hydraulic oil storage chamber through the overflow bore 3, and the piston 33 moves backward.

           In this process, pneumatic pressure flows into the check valve 15 so that the first pressure chamber 10b maintains a constant pressure, and this pressure adheres the seal forming the first pressure chamber 10b to the tube 12 in close contact with the pneumatic pressure. The pneumatic pressure of the passage 10 is blocked from flowing into the booster operation chamber 20b.

           In addition, the piston 44 integrated in the pressure-increasing rod 2 is retracted by the reaction force of the compression spring 45, and the check valve spring 61 formed in the piston 44 is pushed by the head cover 62 to pump back operation chamber ( 40b) and the pump forward operation chamber 40a are shut off.

           In FIG. 3, when pneumatic flows into the pneumatic passage 30 in order to advance the operating rod piston 11, the pressure in the advance operating chamber 30a rises, and the piston 33 overflows the hydraulic fluid in the hydraulic oil storage chamber 20a. Through 3), it is sent to the booster operation chamber 20b, and the actuating rod piston 11 advances by the hydraulic oil pressure of the booster operation chamber 20b.

            In this process, pneumatic pressure flows into the check valve 35 so that the second pressure chamber 30b maintains a constant pressure, and the pressure forms the seal constituting the second pressure chamber 30b with the tube 13 and the pump booster, respectively. In close contact with the rod 2, the pneumatic passage of the pneumatic passage 30 is blocked from flowing into the hydraulic oil storage chamber 20a.

            When pneumatic flows into the pneumatic passage 40 in FIG. 3, the pump piston 44 integrated with the pump booster rod 2 is advanced, and the pump booster rod 2 is inserted into the overflow bore 3, by the Pascal principle. The pressure in the booster operation chamber 20b is raised to actuate the actuating rod piston 11.

             At this time, the check valve spun 61 in the piston 44 integrated with the pump booster rod 2 overcomes the reaction force of the compression spring 63 by the pneumatic pressure of the pump forward operation chamber 40a, so that the check valve spun 61 pumps. The reverse operation chamber 40b and the pump forward operation chamber 40a are kept blocked.

              In FIG. 5, when the pump piston 44 integrated with the pump booster rod 2 is continuously advanced, the pump piston 44 and the block 51 contact each other, and the check valve spun 61 of the pump piston 44 is blocked ( 51 is pushed back and the reverse operation chamber 40b and the pump forward operation chamber 40a pass through, so that the pneumatic pressure in the pneumatic operation chamber 40a is exhausted around the valve valve 61, and the pump forward operation chamber 40a. ), The pressure of the pneumatic pressure drops, and the piston 44 integrated in the pump booster rod 2 is driven backward by the reaction force of the compression spring 45.

            In FIG. 6, when the piston 44 integrated in the pump booster rod 2 is retracted by the reaction force of the compression spring 45 while the pneumatic passage 30 is pneumatically applied, the internal pressure of the booster operation chamber 20b rapidly increases. When lowered, the hydraulic oil in the hydraulic oil storage chamber 20a under the pressure of the piston 33 pushes the overflow bore check valve 25 under the force of the spring 46 and is replenished with the booster operation chamber 20b.

            At this time, the piston 44 integrated in the pump booster rod 2 continues to move back and forth by the pneumatic pressure flowing into the pneumatic passage 40 in a state of FIG. 3.

            7 shows that the check valve 26 is formed separately from the overflow bore check valve 25.

            8 shows that the check valve 27 is separated from the overflow bore check valve 25 and is formed between the hydraulic passages 29.

             In FIG. 9, the hydraulic oil storage chamber 20c is formed in parallel in the downward direction and communicates with the hydraulic operation chamber 20b through the check valve 28, and the hydraulic operation chamber 20b is connected to the hydraulic passage 24. Indicates.

             10 shows that the hydraulic oil storage compartment 20c is formed in parallel in the upward direction.

             In FIG. 11, the hydraulic oil storage chamber 20c communicates with the check valve 23 and the lake, and the pressure-increasing operation chamber 20b is formed, while the hydraulic oil storage chamber 20c communicates with the overflow bore 3.

            In FIG. 12, the forward operation chamber 50a and the pump forward operation chamber 40a are connected to each other by the seal 74.

1 is a longitudinal sectional view of a hydraulic cylinder with a booster pump according to an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view showing the back of the booster pump-mounted hydraulic cylinder;

Fig. 3 is a longitudinal sectional view showing a forward movement of the hydraulic cylinder with a booster pump.

Figure 4 is a longitudinal sectional view showing the boosting pumping operation of the hydraulic cylinder with a booster pump.

Fig. 5 is a longitudinal sectional view showing a booster pump forward end of the hydraulic cylinder with a booster pump;

Fig. 6 is a longitudinal sectional view showing the booster pump backward when the booster pump-mounted hydraulic cylinder;

Figure 7 is a longitudinal sectional view showing the arrangement by separating only the valve from the overflow bore valve.

Fig. 8 is a longitudinal sectional view showing the external arrangement of the overflow bore valves by only removing the valves.

Fig. 9 is a longitudinal sectional view showing a state in which the hydraulic oil storage chambers are formed in parallel in the longitudinal direction.

10 is a longitudinal sectional view showing a state in which the hydraulic oil storage chambers are formed in parallel in the reverse longitudinal direction.

11 is a longitudinal sectional view showing a state in which a hydraulic oil storage chamber is separately formed;

Fig. 12 is a longitudinal sectional view showing that the forward operation chamber 50a and the pump advance operation chamber 40a are connected to each other via a seal 74;

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

         1: main body, 2: pump booster rod

         3: overflow bore 10,30,24,29,40,50,60,70: pneumatic passage,

         10a: reverse operating chamber, 10b: first pressure chamber,

         11: Operating rod piston, 12, 13: tube, 15, 23, 26, 27, 35: check valve, 20a, 50b: working oil reservoir, 20b: booster operating chamber, 25: overflow bore check valve, 30a, 50a: forward Operating chamber, 30b: second pressure chamber, 33, 81: piston, 40a: pump advance operating chamber,

         40b: pump reverse operation room, 44: pump piston,

         45,46,63: Compression spring, 51: Block,

         61: check valve sprocket, 62: head cover, 71: flow level knob, 72, 73: inlet lid,

         74: seal

Claims (14)

           The reverse pneumatic passage 10 is formed in front of the reverse operating chamber (10a) to act on the operating rod piston (11), the pneumatic passage (30) communicating with the forward operating chamber (30a) located in the middle, The forward actuation chamber 30a acts on the piston 33 to actuate the hydraulic fluid in the hydraulic oil storage chamber 20a, and there is a main body 1 between the booster operation chamber 20b and the hydraulic oil storage chamber 20a, and the main body 1 The overflow valve (3) and the overflow valve (25) formed integrally therein, and the piston (44) integrated with the pump booster rod (2) is formed at the front of the pump reverse operation chamber (40b). And a pump forward operation chamber 40a communicating with the pump forward pneumatic passage 40 at the rear thereof, and communicating with the pump reverse operation chamber 40b and the pump forward operation chamber 40a inside the piston 44. In the structure formed of the valve sprocket 61,             A check valve 15 and a first pressure chamber 10b formed in the working rod piston 11 are formed, and an overflow bore 3 and an overflow bore check valve 25 are formed inside the main body 1, A piston valve 35 and a second pressure chamber 30b are formed inside the piston 33, and the piston 44 and the piston 44 integrated into the pump booster rod 2 returned to the compression spring 45. A check valve spun 61 is formed in communication with the reverse operation chamber 40b and the forward operation chamber 40a, and the check valve spun 61 supported by the spring 63 contacts the block 50 when moving forward. The hydraulic cylinder with a booster pump formed to contact the head cover when reversing.            2. The valve according to claim 1, wherein the piston (44) integrated with the pump booster rod (2) returned to the compression spring (45) communicates with the reverse operating chamber (40b) and the forward operating chamber (40a) inside the piston (44). A booster pump is formed, wherein a spool 61 is formed, and the check valve spool 61 supported by the spring 63 contacts the block 50 at the time of advancing and the head cover at the time of the reverse movement. Hydraulic cylinder.            The booster according to claim 1, characterized in that the overflow bore (3) and the overflow bore valve (25) are integrally formed inside the main body (1) and selectively operated when the pump booster rod (2) is inserted and retracted. Hydraulic cylinder with pump.            The pressure valve (15) and the first pressure chamber (10b) formed in the operating rod piston (11) is formed so that the seal is in close contact with the tube (12) at a constant pneumatic pressure of the first pressure chamber (10b). A hydraulic cylinder with a booster pump, characterized by maintaining airtightness.             2. The valve 13 and the second pressure chamber 30b formed in the piston 33 are formed to seal the tube 13 and the pump booster rod at a constant pneumatic pressure of the second pressure chamber 30b. 2) A hydraulic cylinder with a booster pump, characterized in that it is in close contact with the airtight to maintain airtightness.           The hydraulic cylinder with a booster pump according to claim 2, characterized in that the check valve spring (61) is supported by a spring (63).            Fig. 7 is a hydraulic cylinder with a booster pump, characterized in that the check valve 26 is formed separately from the overflow bore valve (25).            8 is a hydraulic cylinder with a booster pump, characterized in that the check valve 27 is separated from the overflow bore valve (25) is formed between the hydraulic passage (29).            In FIG. 9, the hydraulic oil storage chamber 50b is formed in parallel in the downward direction and communicates with the hydraulic operation chamber 20b through the check valve 28, and the hydraulic operation chamber 20b is connected to the hydraulic passage 24. Hydraulic cylinder with booster pump, characterized in that.            10 is a hydraulic cylinder with a booster pump, characterized in that the hydraulic fluid storage chamber (50b) is formed in parallel in the upward direction.           In Fig. 11, with the booster pump, the hydraulic oil storage chamber 50b communicates with the check valve 23 and the lake, and the booster operation chamber 20b, and the hydraulic oil storage chamber 50b communicates with the overflow bore 3. Hydraulic cylinder.           In FIG. 9, the pneumatic flow paths 60 and 70 are formed in the flow level knob 71 integrally formed with the piston 81, and the pneumatic pressure flowing into the advance operation chamber 50a through the pneumatic path 50 is A hydraulic cylinder with a booster pump, characterized in that it is formed to be discharged to the pneumatic passage 60, without entering the operating oil storage chamber (50b).,            9 is a hydraulic pressure level cylinder with a booster pump, characterized in that the flow level knob 71 integrally formed with the piston 81 is formed so as to expand the piston 81 arbitrarily for the hydraulic oil injection of the hydraulic oil storage chamber 50b.            12 is a hydraulic cylinder with a booster pump, characterized in that the pump operating chamber 40a and the forward operating chamber 50a are connected to the seal 74.
KR1020090127591A 2009-12-19 2009-12-19 Fluid pressure cylinder with booster pump KR20110070951A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013058602A2 (en) * 2011-10-21 2013-04-25 Ju Da Young Hydraulic pressure booster cylinder
KR101339921B1 (en) * 2011-09-28 2013-12-10 주재석 Hydraulic device for hydraulic cylinders
WO2014137124A1 (en) * 2013-03-04 2014-09-12 Ju Jae Seak Hydraulic pressure booster cylinder integrated with booster pump device
KR101641503B1 (en) 2015-08-12 2016-07-21 유영복 Yarn Winder
CN105952698A (en) * 2016-06-17 2016-09-21 武汉软件工程职业学院 Gas-liquid pressurized cylinder
WO2016159482A1 (en) * 2015-03-27 2016-10-06 주식회사 하이시스 Hydraulic cylinder integrally comprising booster pump
WO2017084225A1 (en) * 2015-11-19 2017-05-26 北京美高科技发展有限公司 Cable-type static-pressure setting tool
CN107654438A (en) * 2016-07-26 2018-02-02 Smc株式会社 Fluid pressure cylinder with servomechanism

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101339921B1 (en) * 2011-09-28 2013-12-10 주재석 Hydraulic device for hydraulic cylinders
WO2013058602A2 (en) * 2011-10-21 2013-04-25 Ju Da Young Hydraulic pressure booster cylinder
WO2013058602A3 (en) * 2011-10-21 2013-07-04 Ju Da Young Hydraulic pressure booster cylinder
KR101331764B1 (en) * 2011-10-21 2013-11-20 주다영 Hydraulic Booster Cylinder
CN103958947A (en) * 2011-10-21 2014-07-30 朱多暎 Hydraulic pressure booster cylinder
KR20140108860A (en) * 2013-03-04 2014-09-15 주재석 Hydraulic Power Cylinder with Booser Pump Equipment
WO2014137124A1 (en) * 2013-03-04 2014-09-12 Ju Jae Seak Hydraulic pressure booster cylinder integrated with booster pump device
CN107660258A (en) * 2015-03-27 2018-02-02 郭仓淳 Booster pump integrated formula hydraulic cylinder
WO2016159482A1 (en) * 2015-03-27 2016-10-06 주식회사 하이시스 Hydraulic cylinder integrally comprising booster pump
KR20160115510A (en) * 2015-03-27 2016-10-06 주식회사 하이시스 Hydraulic cylinder integrally incoporating buster pump
CN107660258B (en) * 2015-03-27 2019-08-09 郭仓淳 Booster pump integrated formula hydraulic cylinder
KR101641503B1 (en) 2015-08-12 2016-07-21 유영복 Yarn Winder
WO2017084225A1 (en) * 2015-11-19 2017-05-26 北京美高科技发展有限公司 Cable-type static-pressure setting tool
CN105952698A (en) * 2016-06-17 2016-09-21 武汉软件工程职业学院 Gas-liquid pressurized cylinder
CN105952698B (en) * 2016-06-17 2019-07-30 武汉软件工程职业学院 A kind of solution-air pressurized cylinder
CN107654438A (en) * 2016-07-26 2018-02-02 Smc株式会社 Fluid pressure cylinder with servomechanism
CN107654438B (en) * 2016-07-26 2020-06-30 Smc株式会社 Fluid pressure cylinder with booster mechanism

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