Double-acting continuous hydraulic pressure booster
Technical Field
The utility model belongs to booster structural design field specifically is a two continuous hydraulic pressure superchargers of effect.
Background
With the promotion of the modern process of China, the hydraulic technology is widely applied to the fields of industry, agriculture, transportation, water conservation, environmental protection, aerospace ocean engineering and the like. Many locations require ultra-high hydraulic pressure to meet the needs of the work machine.
At present, three methods are mainly used for obtaining ultrahigh hydraulic pressure, one method is to adopt an ultrahigh hydraulic pump and an ultrahigh component matched with the ultrahigh hydraulic pump to establish a high-pressure oil source system to obtain the ultrahigh hydraulic pressure, the other method is to adopt a single-action hydraulic pressure booster to obtain the ultrahigh hydraulic pressure, and the third method is to adopt a double-action hydraulic pressure booster to obtain the ultrahigh hydraulic pressure. However, the ultrahigh pressure hydraulic pump is expensive, and meanwhile, the ultrahigh pressure component used in cooperation with the ultrahigh pressure hydraulic pump has high precision requirement and is easy to leak, while the single-acting hydraulic supercharger has low utilization rate of a hydraulic oil source and large flow pulsation, and cannot stably and continuously output ultrahigh pressure oil.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a double-acting continuous hydraulic pressure booster aiming at the problems in the prior art, which mainly adopts a bidirectional pressure cylinder and a low-pressure hydraulic element to realize bidirectional pressure boosting, ensures continuous output of ultrahigh pressure oil, and improves the utilization rate of a hydraulic oil source at the same time, wherein the oil pressure can reach 45 MPa; and the utility model discloses a two-way pressure cylinder structure is simpler, and manufacturing is easy.
The utility model discloses a realize like this:
a double-acting continuous hydraulic pressure booster is characterized in that the hydraulic pressure booster comprises a bidirectional booster cylinder, the bidirectional booster cylinder comprises a left cylinder and a right cylinder which are symmetrical in a left-right structure, and the structure of the left cylinder or the right cylinder comprises: the cylinder cover on the outermost side, the cylinder body connected with the cylinder cover and the cylinder head connected with the cylinder body; the front side and the rear side of the cylinder head are respectively connected with an oil inlet block and an oil outlet block. The utility model discloses a fluid pipeline is built-in business turn over oil circuit piece, does not need external tube coupling, compact structure, and is small, has reduced the leakage.
The front end of the oil inlet block is respectively provided with an overflow valve and an electromagnetic directional valve, and the electromagnetic directional valve with M-shaped meso-position function is adopted, so that the system can realize pressure maintaining and unloading, the energy loss is reduced, the heating of the system is reduced, and the efficiency is improved.
The left side and the right side of the oil inlet block are respectively provided with a first check valve and a third check valve; the left side and the right side of the oil outlet block are respectively provided with a second one-way valve and a fourth one-way valve; the cylinder body, the cylinder head, the oil inlet path block and the oil outlet path block are all provided with pore channels for oil to enter and exit. When the piston of the left cylinder of the bidirectional pressure cylinder moves to the right end, the electromagnetic directional valve works at the left position, low-pressure oil enters a rod cavity and a rodless cavity of the right cylinder of the bidirectional pressure cylinder through the electromagnetic directional valve and a third one-way valve, the piston of the right cylinder of the bidirectional pressure cylinder moves leftwards, ultrahigh-pressure oil output by the rod cavity of the right cylinder is output through a fourth one-way valve, part of return oil of the rodless cavity of the left cylinder of the bidirectional pressure cylinder enters the rod cavity of the left cylinder through the first one-way valve, and the rest return oil flows back to the oil tank through the electromagnetic directional valve and the back pressure valve; the piston of the bidirectional booster cylinder continuously reciprocates, and the left cylinder and the right cylinder alternately output ultrahigh-pressure hydraulic oil to realize continuous boosting; when the pressure of the system exceeds the specified value, the overflow valve is opened to play the role of overload protection, and when the electromagnetic directional valve is positioned at the middle position, the system can realize pressure maintaining and unloading. The structure can realize bidirectional pressurization, ensure continuous output of ultrahigh pressure oil, ensure that the oil pressure can reach 45MPa, improve the utilization rate of a hydraulic oil source, and has simple structure and easy processing and manufacturing.
Further, the oil inlet path block is also respectively connected with an oil inlet pipe and a back pressure valve; the oil inlet pipe is connected with the oil inlet path block through a pipe joint, and the back pressure valve is connected with the oil inlet path block through a pipe joint; the back pressure valve is also connected with an oil return pipe, and the oil return pipe is connected with the back pressure valve through a pipe joint.
Furthermore, the oil outlet block is also connected with a first pressure gauge; the first pressure gauge is connected with the oil outlet block through a pipe joint.
Further, the upper end of the cylinder head is also connected with a proximity switch plate, the proximity switch plate is connected with the cylinder head through a screw, and a proximity switch is installed on the proximity switch plate.
Furthermore, the electromagnetic directional valve is connected with a plunger pump, and a first pressure gauge is arranged between the electromagnetic directional valve and the overflow valve.
Furthermore, pistons and piston rods in the left cylinder and the right cylinder of the bidirectional pressure cylinder are of an integrated structure, and gaps between the piston rods and the inner wall of the cylinder body of the bidirectional pressure cylinder are small.
Furthermore, a sealing ring is arranged between the piston and the inner wall of the cylinder body, and a check ring is arranged between the two pistons of the left cylinder and the right cylinder and is connected with the pistons through screws.
Furthermore, the cylinder head is also provided with a cylindrical pad, the cylindrical pad is connected with the cylinder head through a cylindrical pad screw, and the cylinder head is connected with the bracket through two screws; the bracket is connected with the bottom plate through two screws; the cylinder cover is connected with the cylinder body through six cylinder cover screws. The whole device has reliable performance, convenient pressurization and lower cost.
The utility model discloses with prior art's beneficial effect lie in:
the supercharger adopts the bidirectional supercharging cylinders with symmetrical left and right structures, and the adopted bidirectional supercharging cylinders and the low-pressure hydraulic component realize bidirectional supercharging, so that ultrahigh-pressure oil is ensured to be continuously output, the oil pressure can reach 45MPa, and the utilization rate of a hydraulic oil source is improved;
compared with a double-acting hydraulic pressure booster in the prior art, the bidirectional pressure booster cylinder has the advantages that the structure is simpler, the processing and the manufacturing are easy, a booster oil pipeline is internally arranged in an oil inlet and outlet block, external pipeline connection is not needed, the structure is compact, the size is small, and the leakage is reduced; in addition, the system can realize pressure maintaining and unloading by adopting the electromagnetic reversing valve with the M-shaped neutral position function, thereby reducing energy loss and heating of the system; the utility model discloses the complete equipment dependable performance, the pressure boost is convenient, and the cost is lower.
Drawings
FIG. 1 is a schematic diagram of a double-acting continuous hydraulic pressure booster of the present invention;
fig. 2 is a top view of the double-acting continuous hydraulic pressure booster of the present invention;
FIG. 3 is a front view of a double-acting continuous hydraulic pressure intensifier of the present invention;
fig. 4 is a left side view of the double-acting continuous hydraulic pressure booster of the present invention;
FIG. 5 is a cross-sectional view of a double acting continuous hydraulic booster of the present invention;
the system comprises a plunger pump 1, an overflow valve 2, a backpressure valve 3, an electromagnetic directional valve 4, a first pressure gauge 5, a first one-way valve 6, a bidirectional pressure boosting cylinder 7, a second one-way valve 8, a second pressure gauge 9, a fourth one-way valve 10, a third one-way valve 11, an oil inlet block 12, a cylinder head 13, a piston 14, a cylinder cover 15, a cylinder body 16, a retainer ring 17, a proximity switch plate 18, a cylindrical pad 19, a proximity switch 20, an oil outlet block 21, a cylindrical pad screw 22, a bracket 23, a base plate 24, an oil inlet pipe 25, an oil return pipe 26 and a cylinder cover screw 27.
Detailed Description
In order to make the purpose, technical solution and effect of the present invention clearer and more clear, it is clear that the following list examples are to the present invention for further detailed description. It should be noted that the embodiments described herein are only for explaining the present invention and are not used to limit the present invention.
As shown in fig. 2 ~ 5, the double-acting continuous hydraulic pressure booster of the present invention includes an overflow valve 2, a back pressure valve 3, an electromagnetic directional valve 4, a first check valve 6, a bidirectional pressure boosting cylinder 7, a second check valve 8, a pressure gauge 9, a fourth check valve 10, a third check valve 11, and a proximity switch 20, and the connection relationship of the specific structure is as follows:
the utility model discloses a left side jar of two-way pressure cylinder 7 is the same with right side jar structure, at the transverse structure of two-way pressure cylinder 7, wherein the structure of left side jar or right jar includes cylinder cap 15, cylinder cap 15 is connected with cylinder body 16 through six cylinder cap screws 27, cylinder head 13 also is connected with cylinder body 16 through six screws, be equipped with the sealing washer between the inner wall of piston 14 and cylinder body 16, retaining ring 17 installs between two pistons, and be connected with piston 14 through the screw, cylindricality pad 19 is connected with cylinder head 13 through cylindricality pad screw 22, cylinder head 13 is connected with support 23 through two screws.
The cylinder head 13 is connected to the oil inlet block 12 and the oil outlet block 21 at the front and rear sides, respectively. An oil inlet path block 12 is connected with a cylinder head 13 through four screws, an overflow valve 2 is installed in front of the oil inlet path block 12 through four screws, an electromagnetic directional valve 4 is also installed in front of the oil inlet path block 12 through four screws, a first check valve 6 is installed on the left side of the oil inlet path block 12 through four screws, a third check valve 11 is installed on the right side of the oil inlet path block 12 through four screws, an oil inlet pipe 25 is connected with the oil inlet path block 12 through a pipe joint, a back pressure valve 3 is connected with the oil inlet block 12 through a pipe joint, and an oil return pipe 26 is connected with the back pressure valve 3 through a pipe joint. The oil outlet block 21 is connected with the cylinder head 13 through four screws, the second check valve 8 is installed on the left side of the oil outlet block 21 through 4 screws, the fourth check valve 10 is installed on the right side of the oil outlet block 21 through 4 screws, the second pressure gauge 9 is connected with the oil outlet block 21 through a pipe joint, the proximity switch plate 18 is connected with the cylinder head 13 through screws, the proximity switch 20 is installed on the proximity switch plate 18, and the support 23 is connected with the bottom plate 24 through two screws.
The cylinder body 16 is provided with a hole for oil to enter and exit, the cylinder head 13 is also provided with a hole for oil to enter and exit, and the oil inlet block 12 and the oil outlet block 21 are both provided with a hole for oil to enter and exit. The left cylinder and the right cylinder of the bidirectional booster cylinder 7 are integrated with the piston rod.
The utility model discloses a two-way continuous hydraulic pressure booster schematic diagram is shown in fig. 1, and the booster adopts two-way pressure cylinder to realize two-way pressure boost, guarantees the super high pressure oil of continuous output. The working principle of the supercharger is as follows:
when the electromagnet 6YA of the electromagnetic directional valve 4 is electrified, the right position of the electromagnetic directional valve 4 works, low-pressure oil output by the plunger pump 1 enters a rod cavity and a rodless cavity of a left cylinder of the bidirectional booster cylinder 7 through the electromagnetic directional valve 4 and the first one-way valve 6, the piston moves rightwards, ultrahigh-pressure oil pressurized by the rod cavity of the left cylinder is output through the second one-way valve 8, part of return oil of the rodless cavity of the right cylinder of the bidirectional booster cylinder 7 enters the rod cavity of the right cylinder through the third one-way valve 11, and the rest return oil flows back to an oil tank through the electromagnetic directional valve 4 and the back pressure valve 3. When the left cylinder piston of the bidirectional pressure cylinder 7 moves to the right end, the check ring 17 is close to the proximity switch 20, the proximity switch 20 sends signals, the electromagnet 5YA of the electromagnetic directional valve 4 is electrified, the electromagnetic directional valve 4 works at the left position, low-pressure oil output by the plunger pump 1 enters a rod cavity and a rodless cavity of the right cylinder of the bidirectional pressure cylinder 7 through the electromagnetic directional valve 4 and the third one-way valve 11, the right cylinder piston of the bidirectional pressure cylinder 7 moves leftwards, ultrahigh-pressure oil output by the rod cavity of the right cylinder is output through the fourth one-way valve 10, part of return oil of the rodless cavity of the left cylinder of the bidirectional pressure cylinder 7 enters the rod cavity of the left cylinder through the one-way valve 6, and the rest return oil flows back to an oil tank through the electromagnetic directional valve. The piston of the bidirectional booster cylinder continuously reciprocates, and the left cylinder and the right cylinder alternately output ultrahigh-pressure hydraulic oil, so that continuous boosting is realized; when the pressure of the system exceeds a specified value, the overflow valve 2 is opened to play an overload protection role, and when the electromagnetic directional valve 4 is positioned in a middle position, the system can realize pressure maintaining and unloading.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.