Bidirectional superhigh pressure supercharger with self-protection device

Abstract

The invention discloses a bidirectional superhigh pressure supercharger with a self-protection device, and relates to the technical field of hydraulic system pressure cylinders. Comprising a piston, an internal magnetic ring, a guide ring, an annular seal, a surface magnetic ring, a low-pressure cylinder, a low-pressure cylinder connecting screw, a magnetic shoe, a magnetic shoe fixing block, a magnetic shoe connecting screw, a magnetic shoe fixing block fixing screw, a high-pressure cylinder, a piston rod, a high-pressure seal, a high-pressure flange, a high-pressure screw, dovetail magnetic steel, a dovetail fixer and a low-pressure flange. The piston is suspended in the low-pressure cylinder according to the principle that like poles of the magnets repel each other, meanwhile, abrasion of piston sealing, piston guiding and the like caused by the self-adjustment of repulsive force of the magnets is prevented, the piston and the low-pressure cylinder are effectively protected, and the cylinder scoring phenomenon is prevented; repulsion between the piston and the low-pressure flange is achieved according to the principle that like poles of the magnets repel, the phenomenon that the piston impacts the low-pressure flange is avoided, impact noise is effectively reduced, finally, the repulsion force between the piston and the low-pressure flange can be adjusted by changing the thickness of the magnetic shoe fixing block, buffering force under different pressures is adjusted, and the buffering effect is good. And the noise is reduced on the basis of protecting the equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of booster cylinders in hydraulic systems, and relates to a bidirectional booster ultra-high pressure supercharger with a self-protection device, the pressure range of which covers 100 MPa to 1600 MPa, and belongs to the field of hydraulic drive. Background Art

[0002] At present, domestic ultra-high pressure superchargers adopt conventional bidirectional hydraulic cylinder boosting method. In actual operation, the piston is prone to rapid wear of piston seals, piston guides, etc. under the action of its own weight and eccentric load. Once the piston seals and piston guides are completely worn, the piston and low-pressure cylinder will be in direct contact, causing damage to the low-pressure cylinder or the piston. The two sides are hydraulically connected, resulting in failure to boost pressure. In addition, when the hydraulic cylinder is reversed, due to the relatively high pressure, the piston will quickly impact the low-pressure seal, generating a lot of noise. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of strain and impact noise of a bidirectional supercharged ultra-high pressure supercharger, and to provide a bidirectional supercharged ultra-high pressure supercharger with a self-protection device.

[0004] The system of the present invention is realized by the following technical solutions:

[0005] A bidirectional supercharger with a self-protection device comprises a piston (1), an internal magnetic ring (2), a guide ring (3), an annular seal (4), a surface magnetic ring (5), a low-pressure cylinder (6), a low-pressure cylinder connecting screw (7), a magnetic tile (8), a magnetic tile fixing block (9), a magnetic tile connecting screw (10), a magnetic tile fixing block fixing screw (11), a high-pressure cylinder (12), a piston rod (13), a high-pressure seal (14), a high-pressure flange (15), a high-pressure screw (16), a dovetail magnet (17), a dovetail fixer (18) and a low-pressure flange (19).

[0006] Furthermore, the piston (1) is a cylinder with three annular grooves on the cylindrical surface, the inner diameters of the two outer annular grooves (101) are consistent with the inner diameter of the inner magnetic ring (2); the outer diameter is consistent with the outer diameter of the guide ring (3) and the inner diameter of the low-pressure cylinder (6), the width is consistent with the width of the inner magnetic ring (2) and the guide ring (3), the cross-sectional area of ​​the middle annular groove (102) is consistent with the cross-sectional area of ​​the annular seal (4), the circular holes (104) symmetrically opened at the center of the two end faces of the cylinder are used to install the piston rod (13), the hole size of the circular hole (104) is the same as the diameter of the piston rod (13), the annular grooves (103) are opened on the two end faces of the cylinder with the end faces as the center, and are used to install the surface magnetic ring (5), the outer diameter of the annular groove is consistent with the outer diameter of the surface magnetic ring (5), the inner diameter is consistent with the inner diameter of the surface magnetic ring (5), and the groove depth is consistent with the thickness of the surface magnetic ring (5);

[0007] Furthermore, the outer diameter of the piston (1) is consistent with the inner diameter of the low-pressure cylinder (6) and the piston (1) is an axisymmetric structure;

[0008] Furthermore, the internal magnetic ring (2) is a semicircular ring, the inner diameter of which is consistent with the inner diameter of the annular groove (101) of the piston (1), the outer diameter of which is consistent with the inner diameter of the guide ring (3), and the width of which is consistent with the width of the annular groove (101) of the piston (1);

[0009] Furthermore, the guide ring (3) is an annular body, the inner diameter of which is consistent with the outer diameter of the internal magnetic ring (2), the outer diameter of which is consistent with the outer diameter of the piston (1) and the inner diameter of the low-pressure cylinder (6), and the width of which is consistent with the width of the annular groove (101) of the piston (1);

[0010] Furthermore, the annular seal (4) is a standard seal;

[0011] Furthermore, the surface magnetic ring (5) has a shape consistent with that of the guide ring (3), an inner diameter consistent with that of the annular groove (103) of the piston (1), an outer diameter consistent with that of the annular groove (103) of the piston (1), and a thickness consistent with the depth of the annular groove (103) of the piston (1);

[0012] Furthermore, the low-pressure cylinder (6) is a cylinder having a plurality of dovetail grooves on its cylindrical surface, the bottom width of the dovetail groove being consistent with the dovetail magnet (17), the dovetail angle being consistent with the dovetail magnet (17), the depth of the dovetail groove being greater than the combined thickness of the dovetail magnet (17) and the dovetail fixture (18), two identical circular holes (601) and (602) being symmetrically disposed away from the dovetail grooves along the axis center on the cylindrical surface, and a plurality of threaded holes being disposed along the circumference on the two end surfaces of the cylinder for connecting the low-pressure flange (19) with the low-pressure cylinder connecting screws (7).

[0013] Furthermore, the inner diameter of the low-pressure cylinder (6) is consistent with the outer diameter of the piston (1) and the low-pressure cylinder (6) is an axisymmetric structure;

[0014] Furthermore, the low-pressure cylinder connecting screw (7) is a standard screw;

[0015] Furthermore, the magnetic tile (8) is a fan-shaped block structure, and two symmetrical threaded holes are opened on the fan-shaped surface along the fan-shaped center line. The magnetic tile connecting screw (10) is connected to the magnetic tile fixing block (9) through the symmetrical threaded holes. The outer diameter of the magnetic tile (8) is consistent with the outer diameter of the annular groove (1901) of the low-pressure flange (19), and the inner diameter of the magnetic tile (8) is consistent with the inner diameter of the annular groove (1901) of the low-pressure flange (19);

[0016] Furthermore, the magnetic tile fixing block (9) has a fan-shaped block structure, and two symmetrical countersunk through holes are opened on the fan-shaped surface along the center line of the fan-shaped surface, and the magnetic tile connecting screw (10) is connected to the magnetic tile fixing block (9) through the symmetrical countersunk through holes. The position and size of the two symmetrical countersunk through holes are consistent with the position and size of the two symmetrical threaded holes in the magnetic tile (8). A countersunk through hole is opened at the center position of the fan-shaped surface, and the magnetic tile fixing block fixing screw 11 is connected to the low-pressure flange (19) through the countersunk through hole. The countersunk through hole at the center position of the fan-shaped surface is opposite to the countersunk direction of the two symmetrical countersunk through holes opened along the center line of the fan. The outer diameter of the magnetic tile fixing block (9) is consistent with the outer diameter of the annular groove (1901) of the low-pressure flange (19), and the inner diameter of the magnetic tile fixing block (9) is consistent with the inner diameter of the annular groove (1901) of the low-pressure flange (19);

[0017] Furthermore, the magnetic tile connecting screws (10) and the magnetic tile fixing block fixing screws (11) are standard screws;

[0018] Furthermore, the high-pressure cylinder (12) is a thick-walled tube structure, the inner diameter of which is consistent with the piston rod (13), and threads are provided on the outer diameter of the thick-walled tube near two end faces.

[0019] Further, the thread is a fine pitch thread;

[0020] Furthermore, the piston rod (13) is a cylindrical structure, and its outer diameter is consistent with the diameter of the circular hole (104) opened in the piston (1) and the inner diameter of the high-pressure cylinder 12.

[0021] Furthermore, the piston rod (13) is made of a high-hardness material;

[0022] Furthermore, the high-pressure seal (14) is a cylindrical body with steps, the maximum outer diameter of the cylindrical body is smaller than the bottom diameter of the fine thread of the high-pressure cylinder (12), the cylindrical body with a smaller outer diameter is an arc-shaped surface, and two holes are provided at the center of the cylindrical body for water inlet and water outlet;

[0023] Furthermore, the bottom sealing cylindrical part of the high-pressure flange (15) has an inner diameter consistent with the outer diameter of the high-pressure cylinder (12), a hole is opened in the center of the bottom of the cylinder for passing two holes of the high-pressure seal (14), a plurality of threaded holes are symmetrically arranged outside the center hole of the bottom of the cylinder, and a thread is opened on the inner wall of the cylinder for connecting to the high-pressure cylinder (12).

[0024] Furthermore, the high-pressure screw (16) is a standard screw;

[0025] Furthermore, the cross section of the dovetail magnet (17) is consistent with the dovetail groove provided on the low-pressure cylinder (6), the width of the dovetail bottom is consistent with the width of the dovetail groove bottom provided on the low-pressure cylinder (6), the dovetail angle is consistent with the dovetail groove provided on the low-pressure cylinder (6), and the dovetail groove depth is less than the dovetail groove depth provided on the low-pressure cylinder (6) minus the thickness of the dovetail fixture (18);

[0026] Furthermore, the cross-section of the dovetail fixture (18) is consistent with the dovetail groove provided on the low-pressure cylinder (6), the width of the dovetail bottom is consistent with the width of the dovetail top of the dovetail magnet (17), the dovetail angle is consistent with the dovetail groove provided on the low-pressure cylinder (6), and the depth of the dovetail groove is less than the depth of the dovetail groove provided on the low-pressure cylinder (6) minus the thickness of the dovetail magnet 17.

[0027] The present invention has the following beneficial effects:

[0028] (1) The present invention adopts the principle of like-charged magnets repelling each other to realize the suspension of the piston in the low-pressure cylinder. At the same time, the self-adjustment of the repulsive force of the magnets is utilized to prevent the piston from being worn out due to its own weight and unbalanced load, thereby effectively protecting the piston and the low-pressure cylinder and preventing the occurrence of cylinder pulling.

[0029] (2) The present invention uses the principle of like-charged magnets repelling each other to achieve repulsion between the piston and the low-pressure flange, thereby avoiding the piston from impacting the low-pressure flange and effectively reducing the occurrence of impact noise.

[0030] (3) The present invention utilizes the change in the thickness of the magnetic shoe fixing block to adjust the repulsive force between the piston and the low-pressure flange, thereby adjusting the buffer force under different pressures and reducing noise while protecting the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0032] Figure 2 This is the front view of piston 1.

[0033] Figure 3 It is an AA cross-sectional view of the piston 1.

[0034] Figure 4 It is the front view of the inner magnetic ring 2.

[0035] Figure 5 It is the right view of the internal magnetic ring 2.

[0036] Figure 6 It is the front view of the guide ring 3.

[0037] Figure 7 It is the AA cross-sectional view of the guide ring 3.

[0038] Figure 8It is the front view of the low-pressure cylinder 6.

[0039] Fig. 9 It is an AA cross-sectional view of the low-pressure cylinder 6.

[0040] Fig.10 It is the front view of magnetic tile 8.

[0041] Fig.11 It is the front view of the magnetic tile fixing block 9.

[0042] Fig.12 It is the AA cross-sectional view of the magnetic tile fixing block 9.

[0043] Fig.13 It is a cross-sectional view of the high-pressure cylinder 12.

[0044] Fig.14 It is the front view of high pressure seal 14.

[0045] Fig.15 It is a cross-sectional view of the high pressure seal 14 taken along line AA.

[0046] Fig.16 This is view 15 of the high pressure flange.

[0047] Fig.17 It is an AA cross-sectional view of the high-pressure flange 15.

[0048] Fig.18 This is view 19 of the low-pressure flange.

[0049] Fig.19 It is the AA cross-sectional view of the low-pressure flange 19. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] Embodiment 1:

[0052] A bidirectional supercharger with a self-protection device comprises a piston (1), an internal magnetic ring (2), a guide ring (3), an annular seal (4), a surface magnetic ring (5), a low-pressure cylinder (6), a low-pressure cylinder connecting screw (7), a magnetic tile (8), a magnetic tile fixing block (9), a magnetic tile connecting screw (10), a magnetic tile fixing block fixing screw (11), a high-pressure cylinder (12), a piston rod (13), a high-pressure seal (14), a high-pressure flange (15), a high-pressure screw (16), a dovetail magnet (17), a dovetail fixer (18) and a low-pressure flange (19).

[0053] The piston (1) is a cylinder with three annular grooves on the cylindrical surface. The inner diameters of the two outer annular grooves (101) are consistent with the inner diameter of the internal magnetic ring (2); the outer diameter is consistent with the outer diameter of the guide ring (3) and the inner diameter of the low-pressure cylinder (6); the width is consistent with the width of the internal magnetic ring (2) and the guide ring (3); the cross-sectional area of ​​the middle annular groove (102) is consistent with the cross-sectional area of ​​the annular seal (4); circular holes (104) symmetrically opened at the center of the two end faces of the cylinder are used to install the piston rod (13); the hole size of the circular hole (104) is the same as the diameter of the piston rod (13); annular grooves (103) are opened at the two end faces of the cylinder with the end face center as the center, and are used to install the surface magnetic ring (5); the outer diameter of the annular groove is consistent with the outer diameter of the guide ring (3) and the inner diameter of the low-pressure cylinder (6); the width of the inner magnetic ring (2) and the guide ring (3); the cross-sectional area of ​​the middle annular groove (102) is consistent with the cross-sectional area of ​​the annular seal (4); the circular holes (104) symmetrically opened at the center of the two end faces of the cylinder are used to install the piston rod (13); the hole size of the circular hole (104) is the same as the diameter of the piston rod (13); the circular grooves (103) are opened at the two end faces of the cylinder with the end face center as the center, and are used to install the surface magnetic ring (5); the outer diameter of the annular groove is consistent with the outer diameter of the guide ring (3 ... The outer diameter of the surface magnetic ring (5) is consistent with that of the surface magnetic ring (5), the inner diameter is consistent with that of the surface magnetic ring (5), and the groove depth is consistent with the thickness of the surface magnetic ring (5); the outer diameter of the piston (1) is consistent with that of the low-pressure cylinder (6), and the piston (1) is an axisymmetric structure; the inner magnetic ring (2) is a semicircular ring body, the inner diameter is consistent with that of the annular groove (101) of the piston (1), the outer diameter is consistent with that of the guide ring (3), and the width is consistent with that of the annular groove (101) of the piston (1); the guide ring (3) is an annular body, the inner diameter is consistent with that of the inner magnetic ring (2), the outer diameter is consistent with that of the piston (1) and the inner diameter of the low-pressure cylinder (6), and the width is consistent with that of the annular groove (101) of the piston (1), and the annular seal (4) is a standard seal.

[0054] The surface magnetic ring (5) has a shape consistent with that of the guide ring (3), an inner diameter consistent with that of the annular groove (103) of the piston (1), an outer diameter consistent with that of the annular groove (103) of the piston (1), and a thickness consistent with the groove depth of the annular groove (103) of the piston (1). The low-pressure cylinder (6) is a cylinder with a plurality of dovetail grooves on the cylindrical surface, the bottom width of the dovetail groove is consistent with that of the dovetail magnet (17), the dovetail angle is consistent with that of the dovetail magnet (17), the depth of the dovetail groove is greater than the combined thickness of the dovetail magnet (17) and the dovetail fixture (18), two identical circular holes (601) and (602) are provided on the cylindrical surface symmetrically away from the dovetail groove along the axis center, and a plurality of threaded holes are provided along the circumference on the two end faces of the cylinder for connecting the low-pressure flange (19) with the low-pressure cylinder connecting screws (7).

[0055] The inner diameter of the low-pressure cylinder (6) is consistent with the outer diameter of the piston (1) and the low-pressure cylinder (6) is an axisymmetric structure;

[0056] The low-pressure cylinder connecting screw (7) is a standard screw;

[0057] The magnetic tile (8) is a fan-shaped block structure, and two symmetrical threaded holes are opened on the fan-shaped surface along the fan-shaped center line. The magnetic tile connecting screws (10) are connected to the magnetic tile fixing block (9) through the symmetrical threaded holes. The outer diameter of the magnetic tile (8) is consistent with the outer diameter of the annular groove (1901) of the low-pressure flange (19), and the inner diameter of the magnetic tile (8) is consistent with the inner diameter of the annular groove (1901) of the low-pressure flange (19);

[0058] The magnetic tile fixing block (9) is a fan-shaped block structure, and two symmetrical countersunk through holes are opened on the fan-shaped surface along the fan-shaped center line. The magnetic tile connecting screw (10) is connected to the magnetic tile fixing block (9) through the symmetrical countersunk through holes. The position size of the two symmetrical countersunk through holes is consistent with the position size of the two symmetrical threaded holes in the magnetic tile (8). A countersunk through hole is opened at the center position of the fan-shaped surface. The magnetic tile fixing block fixing screw 11 is connected to the low-pressure flange (19) through the countersunk through hole. The countersunk through hole at the center position of the fan-shaped surface is connected to the low-pressure flange (19) along the fan-shaped center line. The two symmetrical countersunk through holes opened on the line have opposite countersunk directions. The outer diameter of the magnetic tile fixing block (9) is consistent with the outer diameter of the annular groove (1901) of the low-pressure flange (19), and the inner diameter of the magnetic tile fixing block (9) is consistent with the inner diameter of the annular groove (1901) of the low-pressure flange (19); the magnetic tile connecting screw (10) and the magnetic tile fixing block fixing screw (11) are standard screws; the high-pressure cylinder (12) is a thick-walled cylinder structure, and its inner diameter is consistent with that of the piston rod (13), and threads are opened near the two end faces of the outer diameter of the thick-walled cylinder. The threads are fine pitch threads; the piston rod (13) is a cylindrical structure, and its outer diameter is consistent with the aperture of the circular hole (104) opened in the piston (1) and the inner diameter of the high-pressure cylinder 12.

[0059] The piston rod (13) is made of a high-hardness material;

[0060] The high-pressure seal (14) is a cylindrical body with steps, the maximum outer diameter of the cylindrical body is smaller than the bottom diameter of the fine thread of the high-pressure cylinder (12), the cylindrical body with a smaller outer diameter is an arc-shaped surface, and two holes are provided at the center of the cylindrical body for water inlet and outlet;

[0061] The bottom sealing cylindrical part of the high-pressure flange (15) has an inner diameter consistent with the outer diameter of the high-pressure cylinder (12). A hole is opened in the center of the bottom of the cylinder for passing two holes of the high-pressure seal (14). A plurality of threaded holes are symmetrically arranged outside the center hole of the bottom of the cylinder. A thread is opened on the inner wall of the cylinder for connecting to the high-pressure cylinder (12).

[0062] The high-pressure screw (16) is a standard screw;

[0063] The cross section of the dovetail magnet (17) is consistent with the dovetail groove opened on the low-pressure cylinder (6), the width of the dovetail bottom is consistent with the width of the dovetail groove bottom on the low-pressure cylinder (6), the dovetail angle is consistent with the dovetail groove opened on the low-pressure cylinder (6), and the dovetail groove depth is less than the dovetail groove depth opened on the low-pressure cylinder (6) minus the thickness of the dovetail fixture (18);

[0064] The cross section of the dovetail fixture (18) is consistent with the dovetail groove provided on the low-pressure cylinder (6), the width of the dovetail bottom is consistent with the width of the dovetail top of the dovetail magnet (17), the dovetail angle is consistent with the dovetail groove provided on the low-pressure cylinder (6), and the depth of the dovetail groove is less than the depth of the dovetail groove provided on the low-pressure cylinder (6) minus the thickness of the dovetail magnet 17.

[0065] As shown in the attached figure, a specific installation method of a bidirectional supercharger with a self-protection device is as follows:

[0066] 1) An internal magnetic ring (2) is installed in the groove (101) of the piston (1), and then a guide ring (3) is installed on the outside of the internal magnetic ring (2) to radially constrain the internal magnetic ring (2), and then an annular seal (4) is placed in the groove (102) of the piston (1), and a surface magnetic ring (5) is placed in the groove (103) of the piston (1). The internal magnetic ring (2) and the surface magnetic ring (5) are placed in the piston (1), and the magnetic properties of the internal magnetic ring (2) in the direction close to the outside are consistent, and the magnetic properties of the surface magnetic ring (5) in the direction away from the piston (1) are consistent; a piston rod (13) is placed in the groove (104) of the piston (1);

[0067] 2) The dovetail magnet (17) and the dovetail holder (18) are sequentially installed in the dovetail groove provided in the low-pressure cylinder (6), and the dovetail magnet (17) is pressed into the low-pressure cylinder (6) by using the dovetail holder (18); the magnetic properties of the dovetail magnet (17) in the direction close to the inner diameter of the low-pressure cylinder (6) must be consistent with the magnetic properties of the internal magnetic ring (2) in the direction close to the outer side of the piston (1), ensuring that the two are in a repulsive effect, and then the piston (1), the internal magnetic ring (2), the guide ring (3), the annular seal (4), the surface magnetic ring (5), and the piston rod (13) are installed into the low-pressure cylinder (6), and the dovetail magnet (17) and the dovetail holder (18) are installed;

[0068] 3) Using the magnetic tile connecting screws (10) to connect the magnetic tile (8) and the magnetic tile fixing block (9) into one, and using the magnetic tile fixing block fixing screws (11) to install the assembly after the magnetic tile connecting screws (10), the magnetic tile (8) and the magnetic tile fixing block (9) are connected in the groove (1901) of the low-pressure flange (19); wherein, the magnetism of the magnetic tile (8) close to the inner direction of the cavity of the low-pressure cylinder (6) needs to be consistent with the magnetism of the surface magnetic ring (5) of the groove (103) in the piston (1) away from the piston (1), to ensure that the two sides are in a repulsive effect;

[0069] 4) Using the low-pressure cylinder connecting screws (7), the assembly consisting of the magnetic tile (8), the magnetic tile fixing block (9), the magnetic tile connecting screws (10), the magnetic tile fixing block fixing screws (11), and the low-pressure flange (19) is installed on the low-pressure cylinder (6), and the high-pressure cylinder (12) is installed on the low-pressure flange (19) by threaded connection. Then, the high-pressure seal (14) is installed on the other side of the high-pressure cylinder (12) by using the high-pressure flange (15);

[0070] 5) The high pressure seal (14) is fixed and pre-tightened using the high pressure screw (16) to achieve a sealing function.

[0071] The above description is only a specific implementation method of the invention. The above description does not limit the essential content of the invention. After reading this specification, ordinary technicians in the relevant technical field can make improvements or modifications to the above specific implementation methods without departing from the essence and scope of the invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A bidirectional supercharger with a self-protection device, characterized in that: It includes a piston, an internal magnetic ring, a guide ring, an annular seal, a surface magnetic ring, a low-pressure cylinder, a low-pressure cylinder connecting screws, a magnetic tile, a magnetic tile fixing block, a magnetic tile connecting screws, a magnetic tile fixing block fixing screws, a high-pressure cylinder, a piston rod, a high-pressure seal, a high-pressure flange, a high-pressure screw, a dovetail magnet, a dovetail fixer and a low-pressure flange; the piston is a cylinder with three annular grooves on the cylindrical surface, the inner diameters of the two outer annular grooves are consistent with the inner diameter of the internal magnetic ring, the outer diameters are consistent with the outer diameters of the guide ring and the inner diameter of the low-pressure cylinder, and the width is consistent with the widths of the internal magnetic ring and the guide ring; the cross-sectional area of ​​the middle annular groove is consistent with the cross-sectional area of ​​the annular seal, circular holes are symmetrically opened at the centers of the two end faces of the cylinder for installing the piston rod, the size of the circular holes is the same as the diameter of the piston rod, annular grooves are opened at the two end faces of the cylinder with the end face center as the center for installing the surface magnetic ring, the outer diameter of the annular groove is consistent with the outer diameter of the surface magnetic ring, the inner diameter is consistent with the inner diameter of the surface magnetic ring, and the groove depth is consistent with the thickness of the surface magnetic ring.

2. A bidirectional supercharger with a self-protection device as claimed in claim 1, characterized in that: The low-pressure cylinder is a cylinder with multiple dovetail grooves on the cylindrical surface. The bottom width of the dovetail groove is consistent with the dovetail magnet, the dovetail angle is consistent with the dovetail magnet, the dovetail groove depth is greater than the combined thickness of the dovetail magnet and the dovetail fixture, two identical circular holes are opened on the cylindrical surface symmetrically away from the dovetail groove along the axis center, multiple threaded holes are opened along the circumference on the two end faces of the cylinder, and the low-pressure flange is connected with low-pressure cylinder connecting screws.

3. A bidirectional supercharger with a self-protection device as claimed in claim 1, characterized in that: The magnetic tile is a fan-shaped block structure, with two symmetrical threaded holes opened on the fan surface along the fan center line, and is used to connect the magnetic tile fixing block with magnetic tile connecting screws. The outer diameter of the magnetic tile is consistent with the outer diameter of the annular groove of the low-pressure flange, and the inner diameter of the magnetic tile is consistent with the inner diameter of the annular groove of the low-pressure flange.

4. A bidirectional supercharger with a self-protection device as claimed in claim 1, characterized in that: The magnetic tile fixing block is a fan-shaped block structure, with two symmetrical countersunk through holes opened on the fan-shaped surface along the fan-shaped center line, and the magnetic tile fixing block is connected with magnetic tile connecting screws. The position and size of the two symmetrical countersunk through holes are consistent with the position and size of the two symmetrical threaded holes in the magnetic tile. A countersunk through hole is opened at the center position of the fan-shaped surface, and is used to connect the low-pressure flange with the magnetic tile fixing block fixing screws. The countersunk through hole at the center position of the fan-shaped surface is in opposite direction to the two symmetrical countersunk through holes opened along the fan-shaped center line. The outer diameter of the magnetic tile fixing block is consistent with the outer diameter of the annular groove of the low-pressure flange, and the inner diameter of the magnetic tile fixing block is consistent with the inner diameter of the annular groove of the low-pressure flange.

5. A bidirectional supercharger with a self-protection device as claimed in claim 1, characterized in that: The low-pressure flange is a stepped disc-shaped device with a larger diameter in the middle and smaller diameters at both ends. The middle diameter is consistent with the outer diameter of the low-pressure cylinder. The outer diameter of the disc with a smaller diameter on one side is consistent with the inner diameter of the low-pressure cylinder, and an annular groove centered on the center of the disc is provided on the end face of this side. The outer diameter of the ring is consistent with the outer diameter of the magnetic tile, and the inner diameter is consistent with the inner diameter of the magnetic tile. The depth is greater than the combined thickness of the magnetic tile thickness and the magnetic tile fixing block. A threaded hole is provided in the annular groove, and the position of the threaded hole is consistent with the position of a countersunk through hole provided at the center of the fan-shaped surface of the magnetic tile fixing 9; the outer diameter of the disc with a smaller diameter on the other side is greater than the outer diameter of the high-pressure cylinder 12, and a threaded hole consistent with the outer diameter of the high-pressure cylinder is provided on the end face of this side for connecting the high-pressure cylinder, and threaded holes consistent with the end faces on both sides of the low-pressure cylinder are provided on the disc with a large diameter in the middle, which are used to connect the low-pressure flange to the low-pressure cylinder.

6. A bidirectional supercharger with a self-protection device as claimed in claim 1, characterized in that: The high-pressure seal is a cylinder with steps. The maximum outer diameter of the cylinder is smaller than the bottom diameter of the fine thread of the high-pressure cylinder. The cylinder with a smaller outer diameter is an arc-shaped surface. Two holes are opened at the center of the cylinder, and the two holes are used for water inlet and outlet respectively.

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