CN210531290U - Multistage heavy-load hydraulic cylinder - Google Patents

Abstract

The utility model discloses a multistage heavy load pneumatic cylinder, including heavy load pneumatic cylinder main part, oil-out, oil inlet and wear-resisting ring, the cylinder has been seted up to the inside of heavy load pneumatic cylinder main part, and has seted up the oil-out on the left of the bottom of cylinder, the oil inlet has been seted up on the bottom right side of cylinder, the inner wall left side of cylinder is seted up flutedly and caulking groove, and the inside fixed mounting of caulking groove has first spring, the one end fixed mounting that the caulking groove was kept away from to first spring has the depression bar, the one end fixed mounting that first spring was kept away from to the depression bar has the extrusion piece, the left side fixed mounting of extrusion piece has the foam-rubber cushion, the right. The utility model discloses be provided with the loop bar, can adjust the loop bar, the distance of control loop bar afterwards, and then carry out the classification to the activity of piston rod, make it can use different work, extrusion piece and foam-rubber cushion can cushion the guard action to the piston piece, make the life of piston piece more elongated, convenient to use.

Description

Multistage heavy-load hydraulic cylinder

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a multistage heavy load pneumatic cylinder.

Background

With the continuous development of society and the continuous progress of industry, the hydraulic cylinder is one of hydraulic components which convert hydraulic energy into mechanical energy and do reciprocating motion, has wide application in industry, and the heavy-load hydraulic cylinder in the hydraulic cylinder has stronger working force and has excellent performance in some heavy industries.

But current heavy load pneumatic cylinder can not carry out the classification to hydraulic pressure to make heavy load pneumatic cylinder when handling different during operation, need change heavy load pneumatic cylinder, it is comparatively inconvenient to use, consequently needs a multistage heavy load pneumatic cylinder to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage heavy load pneumatic cylinder to the heavy load pneumatic cylinder that proposes in solving above-mentioned background art can not carry out hierarchical use, at the different during operation of reply, needs to change heavy load pneumatic cylinder, uses comparatively inconvenient scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: a multistage heavy-load hydraulic cylinder comprises a heavy-load hydraulic cylinder body, an oil outlet, an oil inlet and a wear-resistant ring, wherein a cylinder barrel is arranged inside the heavy-load hydraulic cylinder body, the oil outlet is formed in the left side of the bottom end of the cylinder barrel, the oil inlet is formed in the right side of the bottom end of the cylinder barrel, a groove and an embedding groove are formed in the left side of the inner wall of the cylinder barrel, a first spring is fixedly arranged inside the embedding groove, a pressure rod is fixedly arranged at one end, away from the embedding groove, of the first spring, an extrusion block is fixedly arranged at one end, away from the first spring, of the pressure rod, a sponge cushion is fixedly arranged on the left side of the extrusion block, the wear-resistant ring is fixedly arranged on the right side of the extrusion block, a fixed block is inserted at the right end of the outer wall of the cylinder barrel, a second spring is, and the outer wall of the left end of the piston rod is sleeved with a piston block.

Preferably, the caulking groove, the first spring and the extrusion block are provided with two groups, and the caulking groove, the first spring and the extrusion block are uniformly arranged around the groove.

Preferably, one end of the first spring is fixedly welded with the caulking groove, the other end of the first spring is fixedly welded with the pressing rod, and the first spring and the pressing rod form an elastic structure.

Preferably, the one end and the fixed block fixed weld of second spring, the other end and the heavy load pneumatic cylinder main part fixed weld of second spring, the second spring constitutes elastic structure with the fixed block.

Preferably, four groups of fixing grooves are arranged, the diameters of the inner walls of the four groups of fixing grooves are equal to the diameter of the outer wall of the fixing block, the fixing block is inserted into the fixing groove, and the fixing block and the fixing grooves form an embedded structure.

Preferably, the diameter of the inner wall of the through groove is equal to the diameter of the inner wall of the oil inlet, and the output end of the oil inlet is communicated with the through groove.

Compared with the prior art, the beneficial effects of the utility model are that: this multistage heavy load pneumatic cylinder is provided with the loop bar, can adjust the loop bar, controls the distance of loop bar afterwards, and then grades the activity of piston rod, makes it to use different work, and extrusion piece and foam-rubber cushion can cushion the guard action to the piston piece, make the life of piston piece more elongated, convenient to use.

(1) The device is provided with the loop bar, the pulling fixed block, make the fixed block break away from the inside of fixed slot, can make the fixed slot slide afterwards, and then can make the loop bar slide, adjust the position of loop bar afterwards, loosen the fixed block afterwards, make the fixed block imbed the inside of another group of fixed slot and fix, and then adjust the position of piston rod, the hydraulic pressure distance that makes the piston rod changes, and then grades heavy-duty hydraulic cylinder, make it can adapt to different operational environment, high durability and convenient use.

(2) The device is provided with extrusion piece and first spring, at the piston rod during operation, make the piston rod carry out reciprocating motion under the effect of hydraulic power, the piston rod extrudees wear-resisting ring afterwards, wear-resisting ring extrudees the extrusion piece, the extrusion piece extrudees the depression bar, the foam-rubber cushion begins the shrink deformation afterwards, the inside of caulking groove is embedded into to the depression bar, and then carry out the effect of buffering to the piston rod, avoid the piston rod to greatly cause wearing and tearing with the inner wall friction of cylinder, the cushioning effect that makes the extrusion piece is better, the life of piston rod has been increased, high durability and convenient use.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1;

fig. 4 is an enlarged schematic structural diagram of the present invention at B in fig. 1.

In the figure: 1. a heavy-duty hydraulic cylinder main body; 2. a cylinder barrel; 3. an oil outlet; 4. a groove; 5. an oil inlet; 6. a piston rod; 7. a piston block; 8. a loop bar; 9. caulking grooves; 10. a first spring; 11. a pressure lever; 12. a sponge cushion; 13. extruding the block; 14. a wear ring; 15. a fixed block; 16. a second spring; 17. fixing grooves; 18. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a multistage heavy-load hydraulic cylinder comprises a heavy-load hydraulic cylinder body 1, an oil outlet 3, an oil inlet 5 and a wear-resistant ring 14, wherein a cylinder barrel 2 is arranged inside the heavy-load hydraulic cylinder body 1, the oil outlet 3 is arranged on the left side of the bottom end of the cylinder barrel 2, the oil inlet 5 is arranged on the right side of the bottom end of the cylinder barrel 2, a groove 4 and an caulking groove 9 are arranged on the left side of the inner wall of the cylinder barrel 2, a first spring 10 is fixedly arranged inside the caulking groove 9, a pressing rod 11 is fixedly arranged at one end, far away from the caulking groove 9, of the first spring 10, one end of the first spring 10 is fixedly welded with the caulking groove 9, the other end of the first spring 10 is fixedly welded with the pressing rod 11, the first spring 10 and the pressing rod 11 form an elastic structure, when the wear-resistant ring 14 is extruded, the wear-resistant ring 14 extrudes an extrusion block 13, the extrusion block 13 extrud, the depression bar 11 is embedded into the inside of caulking groove 9 afterwards, and then cushions the extrusion force that wear-resisting ring 14 received, and first spring 10 begins to bounce with foam-rubber cushion 12 afterwards, and then makes extrusion piece 13 recover, makes things convenient for next use, easy operation, convenient to use.

One end fixed mounting that depression bar 11 kept away from first spring 10 has extrusion piece 13, caulking groove 9, first spring 10 and extrusion piece 13 are provided with two sets ofly, and two sets of caulking grooves 9, first spring 10 and extrusion piece 13 evenly set up around recess 4, when piston rod 6 carries out reciprocating motion, piston rod 6 is embedded into recess 4's inside, piston block 7 extrudees wear-resisting ring 14 and extrusion piece 13 afterwards, make extrusion piece 13 and wear-resisting ring 14 cushion piston block 7, avoid the great wearing and tearing that cause of the frictional force of piston block 7 and cylinder 2, make piston block 7's life longer, high durability and convenient use.

A sponge cushion 12 is fixedly arranged on the left side of an extrusion block 13, a wear-resistant ring 14 is fixedly arranged on the right side of the extrusion block 13, a fixed block 15 is inserted at the right end of the outer wall of a cylinder barrel 2, a second spring 16 is sleeved on the outer wall of the fixed block 15, one end of the second spring 16 is fixedly welded with the fixed block 15, the other end of the second spring 16 is fixedly welded with a heavy-duty hydraulic cylinder main body 1, the second spring 16 and the fixed block 15 form an elastic structure, the fixed block 15 is pulled, the fixed block 15 is separated from the inside of a fixed groove 17, a loop bar 8 can be adjusted, the fixed block 15 is loosened, the second spring 16 drives the fixed block 15 to recover, so that the fixed block 15 is embedded into the inside of the fixed groove 17 to be fixed, the position of a piston rod 6 can be fixed, the piston rod 6 can be conveniently hydraulically operated, the piston rod 6, simple operation and convenient use.

Inside of cylinder 2 is inserted and is equipped with loop bar 8, and the outer wall of loop bar 8 has seted up fixed slot 17 and logical groove 18, fixed slot 17 is provided with four groups, and the inner wall diameter of four groups of fixed slot 17 equals with the outer wall diameter size of fixed block 15, fixed block 15 is inserted and is established the inside at fixed slot 17, fixed block 15 constitutes embedded structure with fixed slot 17, pulling fixed block 15, can adjust loop bar 8 afterwards, loosen fixed block 15 afterwards, make fixed block 15 imbed another group of fixed slot 17's inside fixed, and then adjust the position of piston rod 6, make the hydraulic pressure distance of piston rod 6 change, can grade heavy-duty hydraulic cylinder, make things convenient for heavy-duty hydraulic cylinder to be applicable to different operational environment, high durability and convenient use.

The inner wall diameter that leads to groove 18 equals with the inner wall diameter size of oil inlet 5, the output of oil inlet 5 is linked together with leading to groove 18, can make hydraulic oil enter into the inside of cylinder 2 through leading to groove 18, make things convenient for the holistic work of heavy load pneumatic cylinder main part 1, can not make loop bar 8 adjust the unable normal work of back heavy load pneumatic cylinder main part 1, and easy operation, high durability and convenient use, the inside of loop bar 8 is inserted and is equipped with piston rod 6, and piston block 7 has been cup jointed to the left end outer wall of piston rod 6.

The working principle is as follows: during the use, pulling fixed block 15, make fixed block 15 break away from the inside of fixed slot 17, can make fixed slot 17 slide afterwards, and then can make loop bar 8 slide, adjust loop bar 8's position afterwards, loosen fixed block 15 afterwards, second spring 16 drives fixed block 15 and restores, make fixed block 15 imbed into the inside of another group of fixed slot 17 and fix, and then adjust the position of piston rod 6, the hydraulic pressure distance that makes piston rod 6 changes, and then grade heavy-load hydraulic cylinder, make it can adapt to different operational environment, high durability and convenient use.

At piston rod 6 during operation, make piston rod 6 carry out reciprocating motion under the effect of hydraulic power, piston rod 6 extrudees wear-resisting ring 14 afterwards, wear-resisting ring 14 extrudees extrusion piece 13, extrusion piece 13 extrudees depression bar 11, foam-rubber cushion 12 begins the shrink deformation afterwards, depression bar 11 is embedded into the inside of caulking groove 9, and then carry out the effect of buffering to piston rod 6, avoid piston rod 6 and the great wearing and tearing that cause of the inner wall friction of cylinder 2, make the buffering effect of extrusion piece 13 better, the life of piston rod 6 has been increased, high durability and convenient use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a multistage heavy load pneumatic cylinder, includes heavy load pneumatic cylinder main part (1), oil-out (3), oil inlet (5) and wear-resisting ring (14), its characterized in that: a cylinder barrel (2) is arranged inside the heavy-duty hydraulic cylinder main body (1), an oil outlet (3) is formed in the left side of the bottom end of the cylinder barrel (2), an oil inlet (5) is formed in the right side of the bottom end of the cylinder barrel (2), a groove (4) and an embedding groove (9) are formed in the left side of the inner wall of the cylinder barrel (2), a first spring (10) is fixedly arranged inside the embedding groove (9), a pressing rod (11) is fixedly arranged at one end, far away from the embedding groove (9), of the first spring (10), an extrusion block (13) is fixedly arranged at one end, far away from the first spring (10), of the pressing rod (11), a sponge cushion (12) is fixedly arranged on the left side of the extrusion block (13), a wear-resisting ring (14) is fixedly arranged on the right side of the extrusion block (13), a fixing block (15) is inserted at the right end of the outer wall, the piston type cylinder is characterized in that a loop bar (8) is inserted into the cylinder barrel (2), a fixing groove (17) and a through groove (18) are formed in the outer wall of the loop bar (8), a piston rod (6) is inserted into the loop bar (8), and a piston block (7) is sleeved on the outer wall of the left end of the piston rod (6).

2. The multi-stage heavy-duty hydraulic cylinder of claim 1, wherein: the caulking groove (9), the first spring (10) and the extrusion block (13) are provided with two sets, and two sets of the caulking groove (9), the first spring (10) and the extrusion block (13) are uniformly arranged around the groove (4).

3. The multi-stage heavy-duty hydraulic cylinder of claim 1, wherein: one end of the first spring (10) is fixedly welded with the caulking groove (9), the other end of the first spring (10) is fixedly welded with the pressing rod (11), and the first spring (10) and the pressing rod (11) form an elastic structure.

4. The multi-stage heavy-duty hydraulic cylinder of claim 1, wherein: one end of the second spring (16) is fixedly welded with the fixed block (15), the other end of the second spring (16) is fixedly welded with the heavy-duty hydraulic cylinder main body (1), and the second spring (16) and the fixed block (15) form an elastic structure.

5. The multi-stage heavy-duty hydraulic cylinder of claim 1, wherein: the fixing grooves (17) are provided with four groups, the diameter of the inner wall of each fixing groove (17) is equal to the diameter of the outer wall of each fixing block (15), the fixing blocks (15) are inserted into the fixing grooves (17), and the fixing blocks (15) and the fixing grooves (17) form an embedded structure.

6. The multi-stage heavy-duty hydraulic cylinder of claim 1, wherein: the diameter of the inner wall of the through groove (18) is equal to that of the inner wall of the oil inlet (5), and the output end of the oil inlet (5) is communicated with the through groove (18).

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