CN219605707U - High-reliability 150Mpa ultrahigh-pressure hydraulic cylinder - Google Patents

Abstract

The utility model provides a high-reliability 150Mpa ultrahigh-pressure hydraulic cylinder, and relates to the field of hydraulic cylinders. Including the jar shell, the inner wall sliding connection of jar shell has the piston main part, and the right side surface fixedly connected with piston rod of piston main part, the right-hand member fixedly connected with cylinder head of jar shell, the right-hand member of piston rod runs through the right side of jar shell inner wall and the left side of cylinder head inner wall to its right side surface, and the right-hand member fixedly connected with cylinder cap of piston rod, a plurality of cavitys have been seted up on the right side surface of cylinder head. According to the utility model, the cylinder cover and the piston main body are buffered by arranging the first buffer device and the second buffer device, so that the cylinder shell is prevented from being impacted when the device is used, the cylinder shell is easy to damage, and the left oil inlet pipe, the left oil outlet pipe, the right oil outlet pipe and the right oil inlet pipe are respectively arranged on the two sides of the cylinder shell, which are positioned on the moving side of the piston main body, so that the moving tightness of the piston rod is improved, and the moving pressure of the piston rod is improved.

Description

High-reliability 150Mpa ultrahigh-pressure hydraulic cylinder

Technical Field

The utility model relates to the field of hydraulic cylinders, in particular to a high-reliability 150Mpa ultrahigh-pressure hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), has simple structure and reliable work, can avoid a speed reducing device when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines.

The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference on two sides of the effective area, the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, the piston, a piston rod, a sealing device, a buffer device and an exhaust device, wherein the buffer device and the exhaust device are determined according to specific application occasions, and other devices are indispensable.

Because the ultrahigh pressure hydraulic cylinder is in use, the cylinder cover and the piston are easy to collide with the cylinder shell in the telescopic process, the cylinder shell is easy to damage for a long time, so that the cylinder cover and the piston are inconvenient to buffer in use, and the piston is driven to move in a mode of unidirectional oil inlet and oil outlet by the existing cylinder cover and piston, so that the pressure inside the cylinder is reduced, and the operation rate of the piston is reduced.

Disclosure of Invention

The utility model aims to provide a high-reliability 150Mpa ultrahigh-pressure hydraulic cylinder, which solves the problems that in the prior art, a cylinder cover and a piston are easy to collide with a cylinder shell during expansion and contraction when the ultrahigh-pressure hydraulic cylinder is used, the cylinder shell is easy to damage for a long time, so that the cylinder cover and the piston are inconvenient to buffer when in use, and the piston is driven to move by adopting a one-way oil inlet and oil outlet mode in most of the existing cylinder cover and piston, so that the pressure in the cylinder can be reduced, and the operation rate of the piston is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high reliability 150Mpa superhigh pressure hydraulic cylinder jar, includes the jar shell, the inner wall sliding connection of jar shell has the piston main part, the right side fixedly connected with piston rod of piston main part, the right-hand member fixedly connected with cylinder head of jar shell, the right-hand member of piston rod runs through the right side of jar shell inner wall and the left side of cylinder head inner wall to its right side surface, the right-hand member fixedly connected with cylinder cap of piston rod, a plurality of cavitys have been seted up on the right side surface of cylinder head, and is a plurality of the inside of cavity all is provided with first buffer, a plurality of recesses have been seted up on the right side of jar shell inner wall, and a plurality of the inside of recess all is provided with second buffer.

Preferably, the first buffer device comprises a first buffer shell, the surface of the first buffer shell is fixedly connected with the inner wall of the cavity, the inner wall of the first buffer shell is slidably connected with a first piston block, the left side surface of the first piston block is fixedly connected with a first buffer spring together with the right side of the inner wall of the first buffer shell, the left side of the lower side surface of the first buffer shell is fixedly connected with an oil drain pipe, the left end of the oil drain pipe penetrates through the lower side of the inner wall of the cavity and the right side surface of the cylinder shell to the inside of the lower side surface of the first buffer shell, the pipe wall of the oil drain pipe is fixedly connected with an oil drain check valve, the left side surface of the first buffer shell is fixedly connected with a supplementary oil pipe, the lower end of the supplementary oil pipe penetrates through the left side of the inner wall of the cavity and the right side of the upper side surface of the cylinder shell to the inside of the first buffer shell, and the pipe wall of the supplementary oil pipe is fixedly connected with an oil flushing check valve.

Preferably, the right side surface of a plurality of first piston piece is all fixedly connected with first buffer rod, and a plurality of the right-hand member of first buffer rod is all run through the right side of cavity inner wall to the right side surface of cylinder end, a plurality of the right-hand member of first buffer rod is all fixedly connected with blotter.

Preferably, the second buffer device comprises a second buffer shell, the surface of the second buffer shell is fixedly connected with the inner wall of the groove, the second piston block is slidably connected with the inner wall of the second buffer shell, the second buffer spring is fixedly connected with the right side of the right side surface of the second piston block and the right side of the inner wall of the second buffer shell together, and the same-magnetic-pole magnetic blocks are fixedly connected with the right side surface of the second piston block and the right side of the inner wall of the second buffer shell.

Preferably, the left side surface of a plurality of second piston blocks is all fixedly connected with second buffer rod, and a plurality of the left end of second buffer rod is all run through the left side of second buffer shell inner wall to the inside of jar shell, and a plurality of the left end of second buffer rod is fixedly connected with buffer ring piece jointly, the left side surface fixedly connected with buffer ring pad of buffer ring piece.

Preferably, the left side surface of jar shell and the right side surface of cylinder cap are all fixedly connected with the universal joint, and two opposite side surfaces of universal joint are all fixedly connected with the connector.

Preferably, the left side of jar shell upside surface fixedly connected with left side oil pipe, the left side fixedly connected with left oil pipe of jar shell downside surface, the right side fixedly connected with right oil pipe of jar shell upside surface, the right side fixedly connected with right oil pipe of jar shell downside surface.

The utility model has the technical effects and advantages that:

1. through the arrangement of the cylinder shell, the piston main body, the piston rod, the cylinder head and the cylinder cover, the cylinder cover and the piston main body are buffered through the arrangement of the first buffer device and the second buffer device, so that the cylinder shell is prevented from being impacted when the device is used, the cylinder shell is easy to damage, and the left side oil inlet pipe, the left oil outlet pipe, the right oil outlet pipe and the right oil inlet pipe are respectively arranged on the two sides of the cylinder shell, which are positioned on the moving side of the piston main body, so that the moving tightness of the piston rod is improved, and the moving pressure of the piston rod is improved.

2. Through setting up first buffer shell, first piston block, first buffer spring, oil drain pipe, oil extraction check valve, supplementary oil pipe, towards oily check valve, under first buffer's effect, buffer the cylinder cap at the striking that removes the cylinder head and produce to avoid causing the striking damage to the cylinder head.

3. Through setting up second buffer shell, second piston piece, second buffer spring, homopolar magnetic path, under the effect of second buffer, the right side that removes to the cylinder shell inside of piston main part is buffered to avoid the piston rod to produce the striking to the right side of cylinder shell inner wall, cause the damage of cylinder shell.

Drawings

Fig. 1 is a schematic perspective view of the whole structure of the present utility model.

Fig. 2 is a schematic diagram of the overall front cross-sectional structure of the present utility model.

Fig. 3 is an enlarged schematic view of the portion a of fig. 2 according to the present utility model.

Fig. 4 is a schematic perspective view of a buffer ring sheet according to the present utility model.

In the figure: 1. a cylinder housing; 2. a piston body; 3. a piston rod; 4. a cylinder head; 5. a cylinder cover; 6. a first buffer case; 7. a first piston block; 8. a first buffer spring; 9. an oil drain pipe; 10. an oil discharge one-way valve; 11. supplementing an oil pipe; 12. an oil flushing one-way valve; 13. a first buffer rod; 14. a cushion pad; 15. a second buffer case; 16. a second piston block; 17. a second buffer spring; 18. the magnetic blocks with the same magnetic poles; 19. a second buffer rod; 20. a buffer ring piece; 21. a buffer ring pad; 22. a universal joint; 23. a connector; 24. a left side oil inlet pipe; 25. a left oil outlet pipe; 26. a right oil outlet pipe; 27. and a right oil inlet pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a high-reliability 150Mpa ultrahigh-pressure hydraulic cylinder as shown in fig. 1-4, which comprises a cylinder shell 1, wherein the inner wall of the cylinder shell 1 is slidably connected with a piston main body 2, the right side surface of the piston main body 2 is fixedly connected with a piston rod 3, the right end of the cylinder shell 1 is fixedly connected with a cylinder head 4, the right end of the piston rod 3 penetrates through the right side of the inner wall of the cylinder shell 1 and the left side of the inner wall of the cylinder head 4 to the right side surface thereof, the right end of the piston rod 3 is fixedly connected with a cylinder cover 5, the right side surface of the cylinder head 4 is provided with a plurality of cavities, the inside of each cavity is provided with a first buffer device, the right side of the inner wall of the cylinder shell 1 is provided with a plurality of grooves, and the inside of each groove is provided with a second buffer device.

As shown in fig. 2-3, the first buffer device comprises a first buffer shell 6, the surface of the first buffer shell 6 is fixedly connected with the inner wall of the cavity, a first piston block 7 is slidably connected with the inner wall of the first buffer shell 6, a first buffer spring 8 is fixedly connected with the left side surface of the first piston block 7 and the right side of the inner wall of the first buffer shell 6 together, an oil drain pipe 9 is fixedly connected with the left side of the lower side surface of the first buffer shell 6, the left end of the oil drain pipe 9 penetrates through the lower side of the inner wall of the cavity and the right side surface of the cylinder shell 1 to the inside of the first buffer shell, an oil drain check valve 10 is fixedly connected with the pipe wall of the oil drain pipe 9, a supplementary oil pipe 11 is fixedly connected with the lower end of the supplementary oil pipe 11, the right side of the upper side surface of the cylinder shell 1 penetrates through the left side of the inner wall of the cavity and the right side of the inner wall of the cylinder shell 1 to the inside of the first buffer shell, an oil flushing check valve 12 is fixedly connected with the pipe wall of the supplementary oil pipe 11, under the action of the first buffer device, the impact generated by moving the cylinder head 4 is buffered by the cylinder head 5, so that the damage to the cylinder head 4 is avoided, the left end of the oil drain pipe 9 penetrates through the lower side of the cavity and the right side of the first buffer rod 13 is fixedly connected with the first buffer rod 13, and the right end of the buffer rod 13 is fixedly connected with the buffer rod 13 to the right end of the cylinder head 4.

As shown in fig. 2-4, the second buffer device includes a second buffer shell 15, the surface of the second buffer shell 15 is fixedly connected with the inner wall of the groove, the inner wall of the second buffer shell 15 is slidably connected with a second piston block 16, the right side surface of the second piston block 16 and the right side of the inner wall of the second buffer shell 15 are fixedly connected with a second buffer spring 17, the right side surface of the second piston block 16 and the right side of the inner wall of the second buffer shell 15 are fixedly connected with same magnetic pole magnetic blocks 18, under the action of the second buffer device, the right side of the piston main body 2 moving to the inside of the cylinder shell 1 is buffered, thereby avoiding the piston rod 3 from striking the right side of the inner wall of the cylinder shell 1, causing the damage of the cylinder shell 1, the left side surfaces of the second piston blocks 16 are fixedly connected with second buffer rods 19, the left ends of the second buffer rods 19 penetrate through the left side of the inner wall of the second buffer shell 15 to the inside of the cylinder shell 1, the left ends of the second buffer rods 19 are fixedly connected with buffer ring pieces 20, the left side surfaces of the buffer ring pieces 20 are fixedly connected with buffer rings 21, and the buffer ring 21 are fully connected with the buffer ring 21 under the action of the buffer main body 2.

As shown in fig. 1-2, the left side surface of the cylinder shell 1 and the right side surface of the cylinder cover 5 are fixedly connected with universal joints 22, the opposite side surfaces of the two universal joints 22 are fixedly connected with connectors 23, under the action of the connectors 23, the device is convenient to connect with the installation position, under the action of the universal joints 22, the connected position is convenient to adjust in a universal way, the left side of the upper side surface of the cylinder shell 1 is fixedly connected with a left side oil pipe 24, the left side of the lower side surface of the cylinder shell 1 is fixedly connected with a left oil outlet pipe 25, the right side of the upper side surface of the cylinder shell 1 is fixedly connected with a right oil outlet pipe 26, the right side of the lower side surface of the cylinder shell 1 is fixedly connected with a right oil inlet pipe 27, oil injection treatment is carried out on the left side and the right side inside the cylinder shell 1 under the action of the left side oil outlet pipe 24 and the right oil inlet pipe 26, and oil discharge treatment is carried out on the left side and the right side inside the cylinder shell 1.

The working principle of the utility model is as follows: when the device is used, the lifting connector 23 is used for installing the device at a using position, the two lifting connectors 23 are connected, when the device needs to be extended, the left oil outlet pipe 25 and the right oil inlet pipe 27 are closed, the left side inside the cylinder shell 1 is filled with oil through the left oil inlet pipe 24, the air on the right side inside the cylinder shell 1 is discharged through the right oil outlet pipe 26, so that the air pressure on the right side inside the cylinder shell 1 is reduced, the hydraulic pressure on the left side inside the cylinder shell 1 is increased, the piston main body 2 is driven to move in the cylinder shell 1, and the cylinder cover 5 on the piston rod 3 is driven to move;

when the piston main body 2 moves to the right side inside the cylinder shell 1, at this time, the piston main body 2 presses the buffer ring pad 21 on the buffer ring piece 20, and drives the second piston blocks 16 on the plurality of second buffer rods 19 to move in the second buffer shell 15, so that the movement of the second buffer rods 19 is buffered under the action of the second buffer springs 17, and two magnetic poles on the opposite side of the second buffer shell 15 to the magnetic pole magnetic blocks 18 are the same, so that magnetic resistance is generated, and the movement of the second buffer rods 19 is buffered;

when the piston main body 2 needs to move leftwards, the left oil inlet pipe 24 and the right oil outlet pipe 26 are closed, oil is injected to the right side in the cylinder shell 1 through the right oil inlet pipe 27, and oil on the left side of the cylinder shell 1 is discharged through the left oil outlet pipe 25, so that the oil on the right side in the cylinder shell 1 is increased, the oil on the left side is reduced, and the piston main body 2 is driven to move leftwards;

after the piston main body 2 moves to the left rear cylinder cover 5, the cylinder cover 5 detects extrusion of the buffer pad 14 and drives the first buffer rod 13 to move into the first buffer shell 6, so that the first piston block 7 extrudes oil in the first buffer shell 6, the oil in the first buffer shell 6 is extruded into the cylinder shell 1 through the oil discharge pipe 9 and the oil discharge check valve 10, so that impact generated by movement of the cylinder cover 5 is buffered, and when the cylinder cover 5 is far away from the buffer pad 14, the first piston block 7 is driven to rebound under the action of the first buffer spring 8, and at the moment, under the action of movement of the first piston block 7, the oil on the right side in the cylinder shell 1 is sucked into the first buffer shell 6 through the oil supplementing pipe 11 and the oil flushing check valve 12 until the oil in the first buffer shell 6 is fully sucked, so that impact of the cylinder cover 5 can be buffered again.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a high reliability 150Mpa super high pressure hydraulic cylinder, includes shell (1), its characterized in that: the inner wall sliding connection of jar shell (1) has piston main part (2), the right side fixedly connected with piston rod (3) of piston main part (2), the right-hand member fixedly connected with cylinder head (4) of jar shell (1), the right-hand member of piston rod (3) runs through the right side of jar shell (1) inner wall and the left side of cylinder head (4) inner wall to its right side surface, the right-hand member fixedly connected with cylinder cap (5) of piston rod (3), a plurality of cavitys have been seted up on the right side surface of cylinder head (4), and a plurality of the inside of cavity all is provided with first buffer, a plurality of recesses have been seted up on the right side of jar shell (1) inner wall, a plurality of the inside of recess all is provided with second buffer.

2. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 1, wherein: the first buffer device comprises a first buffer shell (6), the surface of the first buffer shell (6) is fixedly connected with the inner wall of the cavity, a first piston block (7) is slidably connected with the inner wall of the first buffer shell (6), a first buffer spring (8) is fixedly connected with the left side surface of the first piston block (7) and the right side of the inner wall of the first buffer shell (6), an oil drain pipe (9) is fixedly connected with the left side of the lower side surface of the first buffer shell (6), the left end of the oil drain pipe (9) penetrates through the lower side of the inner wall of the cavity and the right side surface of the cylinder shell (1) to the inside of the lower side surface of the cylinder shell, an oil drain check valve (10) is fixedly connected with the pipe wall of the oil drain pipe (9), a supplementary oil pipe (11) is fixedly connected with the left side of the lower end of the supplementary oil pipe (11) penetrating through the left side of the inner wall of the cavity and the right side surface of the upper side of the cylinder shell (1) to the inside of the first buffer shell, and an oil flushing check valve (12) is fixedly connected with the pipe wall of the supplementary oil pipe (11).

3. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 2, wherein: the right side surface of a plurality of first piston piece (7) all fixedly connected with first buffer rod (13), a plurality of the right-hand member of first buffer rod (13) all runs through the right side of cavity inner wall to the right side surface of cylinder end (4), a plurality of the right-hand member of first buffer rod (13) all fixedly connected with blotter (14).

4. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 1, wherein: the second buffer device comprises a second buffer shell (15), the surface of the second buffer shell (15) is fixedly connected with the inner wall of the groove, a second piston block (16) is slidably connected with the inner wall of the second buffer shell (15), a second buffer spring (17) is fixedly connected with the right side surface of the second piston block (16) and the right side of the inner wall of the second buffer shell (15), and the right side surface of the second piston block (16) and the right side of the inner wall of the second buffer shell (15) are fixedly connected with magnetic blocks (18) with the same magnetic poles.

5. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 4, wherein: the left side surface of a plurality of second piston blocks (16) all fixedly connected with second buffer rod (19), a plurality of the left end of second buffer rod (19) all runs through the left side of second buffer shell (15) inner wall to the inside of jar shell (1), a plurality of the left end of second buffer rod (19) is fixedly connected with buffer ring piece (20) jointly, the left side surface fixedly connected with buffer ring pad (21) of buffer ring piece (20).

6. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 1, wherein: the left side surface of jar shell (1) and the right side surface of cylinder cap (5) are all fixedly connected with universal joint (22), and two opposite side surfaces of universal joint (22) are all fixedly connected with connector (23).

7. The high-reliability 150Mpa ultra-high-pressure hydraulic cylinder according to claim 1, wherein: the left side fixedly connected with left side oil inlet pipe (24) of jar shell (1) upside surface, the left side fixedly connected with left oil outlet pipe (25) of jar shell (1) downside surface, the right side fixedly connected with right oil outlet pipe (26) of jar shell (1) upside surface, the right side fixedly connected with right oil inlet pipe (27) of jar shell (1) downside surface.