KR20120025291A - Double-acting intensifier - Google Patents

Abstract

PURPOSE: A reciprocating pressure-increasing apparatus is provided to change low pressure of fluid to high pressure of fluid rapidly by a piston reciprocating between dividing plates. CONSTITUTION: A reciprocating pressure-increasing apparatus comprises a pressure generating unit(10), a cylinder(20), a piston(30), and a fluid intake/discharge pipe(40). The pressure generating unit generates pressure by moving fluid by a compressor. A dividing plate(21) is installed on the central part of the space of the cylinder and comprises a separated space. The piston is composed of a connection unit(31) and a head unit(33). The connection unit passes through the dividing plate of the cylinder.

Description

Double acting pressure booster {DOUBLE-ACTING INTENSIFIER}

The present invention relates to a double-acting booster, and more particularly, a double-acting booster in which fluid such as water, oil, air, etc. is supplied to the inside of the cylinder, and the supplied fluid is boosted and discharged by the double-acting piston built in the cylinder. Relates to a device.

In general, the intensifier is to generate the high pressure secondary pressure by using the primary pressure supplied from the low pressure source.

Such a pressure intensifier has been used in various fields such as the machine processing industry, the automobile industry, the food processing industry, and in various fields such as the disaster site, and there have been many studies.

For example, Korean Utility Model Publication No. 20-0243058 has a built-in booster piston inside the booster cylinder, and a switching valve is installed to the outside of the booster cylinder. It is equipped with a high-pressure forming unit having a neck portion, provided with a high-pressure plunger to the left and right of the pressure-increasing piston, and provided with a plurality of operating passages in the pressure-increasing cylinder, the pressure-increasing piston and the high-pressure forming unit, the primary pressure supplied from a low pressure hydraulic source In the pressure increaser for the hydraulic system for increasing the pressure to the secondary pressure of the high pressure, the pressure piston, characterized in that formed integrally with the high-pressure piston of each diameter; and the small diameter portion to prevent the secondary hydraulic pressure and backflow prevention To support the generation of the secondary high pressure by the left high pressure forming portion and the pressure-increasing piston, characterized in that it comprises a valve, the first inlet and the operating flow path A high pressure operation part comprising a right high pressure forming part comprising a small diameter part and a working flow path; and a spring and a cap for supporting the spring are located on one side of the switching spool and the low pressure chamber and the other side. A pressure regulator for an external hydraulic system is disclosed, wherein a cap is formed to form a low pressure chamber and a switching valve body is provided with a working flow path, a second inlet port and a primary fluid outlet port.

However, such a technique has a problem in that the length of the cylinder for increasing pressure and the internal structure are complicated to reduce the size, and the reciprocating motion of the piston for increasing pressure is too long to continuously increase pressure.

Korean Utility Model Publication No. 20-0243058 "Intensifier for External Hydraulic System"

The present invention is to solve this problem, by the piston installed in the interior of the cylinder having a divider to form a pressure space and a pressure-increasing space in the interior of the cylinder, as well as to reduce the size, between the divider A double-acting piston provides a double-acting hydraulic system for rapidly increasing low pressure fluid to high pressure fluid.

In addition, the present invention also provides a double-acting hydraulic system for rapidly and continuously supplying a fluid to a boosting space of a piston due to a fluid inlet and outlet pipe having a check valve.

In addition, there is also provided a double-acting hydraulic device that doubles the piston with fluid flowing in the pressure generating means, the structure is simple and the durability is improved.

Double-acting hydraulic apparatus of the present invention for achieving the above object is a pressure generating means for generating a pressure by flowing a fluid by the compressor; Both left and right ends are installed in communication with the pressure generating means, the inside forms a cylinder having a closed receiving space and the center of the receiving space is provided with a partition plate having a separate receiving space; A connecting portion penetrating the partition plate of the cylinder and a head portion provided at both ends of the connecting portion and fitted to the inner circumferential surface of the cylinder, and forming a pressure space and a pressure-increasing space with the head portion therebetween, from the pressure generating means to the left and right pressure spaces of the cylinder. A piston configured to double-increase the internal pressure-increasing space of the cylinder by the flowing fluid; And a piston installed in communication with the boosting space in which the piston is double acting, and having a plurality of check valves to supply the fluid supplied from the fluid supply source to the boosting space through one end, and the fluid being boosted in the boosting space due to the double acting piston. It is configured to include a fluid inlet and outlet pipe to be discharged through the other end.

The fluid is characterized in that any one selected from oil, water, air.

In addition, the pressure generating means is further provided with a switching member consisting of a first switching valve, a second switching valve, and a fluid circulation cylinder is characterized in that to generate a pressure by flowing the fluid in order to the left and right ends of the cylinder.

In addition, a piston ring is further installed on an outer circumferential surface of the head portion of the piston, and a partition plate ring is further installed on an inner circumferential surface of the partition plate through which the connecting portion penetrates to maintain airtightness between the piston and the cylinder.

According to the present invention by the above solution means to form a pressure space and a pressure-increasing space in the interior of the cylinder due to the piston installed in the cylinder having a partition plate, as well as the piston to be double-acting across the partition plate There is an effect of rapidly increasing the low pressure fluid to a high pressure fluid continuously.

In addition, the fluid inlet and outlet pipe having a check valve also has an effect of rapidly and continuously supplying fluid to the boosting space of the piston.

In addition, by double acting the piston with the fluid flowing in the pressure generating means there is an effect that the structure is simple and durability is improved.

1 is a system diagram of a double-acting booster of the present invention.
2 is a perspective view of a double-acting booster of the present invention.
3 to 4 is a state diagram used in the double-acting booster of the present invention.
5 to 6 is a detailed view of the switching member of the double-acting booster of the present invention.

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

1 is a system diagram of a double-acting booster of the present invention, Figure 2 is a perspective view of the double-acting booster of the present invention, Figures 3 to 4 is a state of use of the double-acting booster of the present invention, Figures 5 to 6 Is a view showing a detailed view of the switching member of the double-acting booster of the present invention.

As shown in Figs. 1 to 6, the double-acting hydraulic apparatus of the present invention is provided with a pressure generating means 10, a cylinder 20, a piston 30, and a fluid inlet pipe 40.

The pressure generating means 10 is made to generate a pressure by flowing a fluid by a compressor (not shown), wherein the fluid is delivered to the piston 30 through the left and right ends of the cylinder 20.

On the other hand, the pressure generating means 10 is further provided with a switching member (13).

The switching member 13 is composed of a first switching valve 13a, a second switching valve 13b, and a fluid circulation cylinder 13c, as shown in FIGS. 5 to 6, left and right of the cylinder 20. The fluid is sequentially flowed at both ends to generate pressure.

In this case, the first switching valve 13a and the second switching valve 13b may be mechanical or electronic, and in the case of electronic, a three-way solenoid valve may be used.

 Fluid is sequentially flowed to the left and right ends of the cylinder 20 to generate pressure to double actuate the piston 30.

At this time, the fluid flowing from the pressure generating means 10 to the left and right both ends of the cylinder 20 is characterized in that any one selected from water, oil, air.

The cylinder 20 is installed in communication with the pressure generating means 10 through a fluid pressure pipe 22 provided at both ends.

The inside of the cylinder 20 forms a cylinder having a sealed accommodation space, and the partition plate 21 is provided at the center of the accommodation space to have a separate accommodation space.

At this time, in the receiving space separated by the partition plate 21 of the cylinder 20, the fluid which is pressurized or discharged by the piston 30 to pressurize or double-actuate the piston 30 is accommodated, respectively. .

The piston 30 is composed of a cylindrical connecting portion 31, and a disk-shaped head portion 33.

At this time, the cylindrical connecting portion 31 is installed through the partition plate 21 of the cylinder 20, the head portion 33 is provided at both ends of the connecting portion 31 is fitted to the inner peripheral surface of the cylinder 20 Due to the pressure generating means (10) by forming a pressure space (A) and a pressure-increasing space (Z) between the head portion 33 in each receiving space separated by the partition plate 21 in the interior of the cylinder (20) It is provided to double-increasing the internal pressure boosting space (Z) of the cylinder 20 by the fluid flowing in the left and right pressure space (A) of the cylinder (20).

At this time, as the diameter of the connecting portion 31 increases, the area of the boosting space Z decreases, so that the pressure to be boosted increases.

The fluid inlet and outlet pipe 40 is installed in communication with the boosting space Z in which the piston 30 is double-acting, and includes a plurality of check valves 41 to receive the fluid supplied from the fluid supply 43 through one end. Supply to the pressure-increasing space (Z), due to the double acting piston 30 is made to discharge the fluid to be boosted in the pressure-increasing space (Z) through the other end.

At this time, the check valve 41 is the first check valve 41a, the second check valve 41b, the third check valve 41c, and the fourth check valve as shown in Figs. 41d.

That is, as shown in FIG. 3, when the piston 30 moves from the right side to the left side with respect to the partition plate 21, the fluid contained in the boosting space Z on the right side of the partition plate 21 is the third check valve 41c. ) Is discharged to the outside due to the open, the fluid received in the boosting space (Z) on the left side of the partition plate 21 is received through the fluid inlet pipe 40 due to the opening of the second check valve (41b). At this time, the first check valve 41a and the fourth check valve 41d are closed.

In addition, as shown in FIG. 4, when the piston 30 moves from the left side to the right side with respect to the partition plate 21, the fluid contained in the boosting space Z on the left side of the partition plate 21 is the first check valve 41a. ) Is discharged to the outside due to the opening, and the fluid received in the boosting space (Z) on the right side of the partition plate 21 is received through the fluid inlet pipe (40) due to the opening of the fourth check valve (41d). At this time, the second check valve 41b and the third check valve 41c are closed.

As such, by repeating the operation of FIGS. 3 and 4, the high-pressure fluid is continuously discharged quickly.

At this time, the fluid accommodated in the pressure-increasing space (Z) of the cylinder 20 through the fluid inlet pipe 40 in the fluid supply source 43 is characterized in that any one selected from water, oil, air.

In addition, a piston ring 33a is further provided on the outer circumferential surface of the head portion 33 of the piston 30, and a partition plate ring 21a is further provided on the inner circumferential surface of the partition plate 21 through which the connecting portion 31 passes. It is characterized in that the airtightness between the piston 30 and the cylinder 20 is maintained.

As described above, the present invention forms a pressure space and a pressure-increasing space inside the cylinder due to the piston installed inside the cylinder having the partition plate, and reduces the size of the piston. There is an effect of rapidly increasing the fluid to a high pressure fluid continuously.

According to the present invention, the piston is installed inside the cylinder having a partition plate to form a pressure space and a pressure-increasing space in the cylinder, thereby miniaturizing the size, as well as a piston that is double-acting with a partition plate between the fluids of low pressure. It provides a double acting hydraulic system for rapidly increasing the pressure with a high pressure fluid continuously.

In addition, a double-acting hydraulic system is provided, which supplies the fluid continuously and rapidly to the pressure-increasing space of the piston due to the fluid inlet and outlet pipe having the check valve.

In addition, there is also provided a double-acting hydraulic device that doubles the piston with the fluid flowing in the pressure generating means, the structure is simple and the durability is improved.

10: pressure generating means 13: switching member
13a: 1st switching valve 13b: 2nd switching valve
13c: fluid circulation cylinder 20: cylinder
21: Partition plate 21a: Partition plate ring
22: fluid pressure pipe 30: piston
31: connection part 33: head part
33a: piston ring 40: fluid entry and exit pipe
41: Check valve 41a: First check valve
41b: 2nd check valve 41c: 3rd check valve
41d: 4th check valve 43: fluid supply source
A: Pressure space Z: Pressure space

Claims (4)

Pressure generating means (10) for generating a pressure by flowing a fluid by a compressor (not shown);
Both left and right ends are installed in communication with the pressure generating means 10, the inside forms a cylinder having a sealed receiving space and the partition plate 21 in the center of the receiving space is provided with a cylinder 20 having a separate receiving space ;
It consists of a connecting portion 31 penetrating through the partition plate 21 of the cylinder 20 and the head portion 33 which is provided at both ends of the connecting portion 31 and fitted to the inner peripheral surface of the cylinder 20, the head portion 33 The internal pressure boosting of the cylinder 20 is formed by the fluid flowing from the pressure generating means 10 to the left and right pressure spaces A of the cylinder 20 by forming a pressure space A and a pressure-increasing space Z between them. A piston 30 which doubles the space Z to increase pressure; And
The piston 30 is installed in communication with the boosting space Z, which is double-acting, and includes a plurality of check valves 41 to supply the fluid supplied from the fluid supply source 43 to the boosting space Z through one end. And a fluid inlet pipe (40) configured to discharge the fluid under pressure in the boosting space (Z) through the other end due to the double acting of the piston (30). The double-acting booster according to claim 1, wherein the fluid is one selected from oil, water and air. The pressure generating means (10) is further provided with a switching member (13) comprising a first switching valve (13a), a second switching valve (13b), and a fluid circulation cylinder (13c). A double-acting booster, characterized in that for generating a pressure by flowing the fluid in sequence to the left and right both ends of (20). The piston ring 33a is further provided on the outer circumferential surface of the head portion 33 of the piston 30, and the split plate ring 21a is provided on the inner circumferential surface of the partition plate 21 through which the connecting portion 31 passes. It is further installed double pressure type booster, characterized in that to maintain the airtight between the piston (30) and the cylinder (20).

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