CN218151782U - Hydraulic cylinder buffer structure - Google Patents

Abstract

The utility model discloses a pneumatic cylinder buffer structure, including cylinder body and piston, a plurality of notch I has been seted up to piston one end surface for the annular, notch one inside sliding connection has the traveller, install elastic spring I between traveller one end surface and the notch bottom, buffer board I is installed jointly to the a plurality of traveller other end, buffer board two is installed to buffer board one side, the traveller outside is located and installs elastic spring two between buffer board I and the piston, two end surfaces of buffer board are the annular and install a plurality of connecting rod, connecting rod one end is all rotated and is connected with the removal post, the spout has been seted up to the cylinder body inside surface, remove post and spout sliding connection, install elastic spring three between removal post one end surface and the spout bottom. The utility model discloses a pair of elastic spring of buffer board is compressed with elastic spring two, and buffer board two compresses elastic spring three through removing the post, and each elastic spring has effectively reduced the piston to the inside impact force of cylinder body at the shrink in-process.

Description

Hydraulic cylinder buffer structure

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a pneumatic cylinder buffer structure.

Background

The pneumatic cylinder is the part that hydraulic equipment was used commonly, can support heavier object through hydraulic mode, but the pneumatic cylinder during operation, the piston removes in the pneumatic cylinder is inside, when moving to the stroke terminal point, the piston has great impact force, consequently, need use buffer structure, has reduced the damage of piston to the pneumatic cylinder.

At present, when using, when the pneumatic cylinder withdraws, produce great pressure under the effect of goods gravity, cause the quick decline of piston easily, cause the damage to the pneumatic cylinder bottom easily, do not have the top to the pneumatic cylinder to cushion simultaneously, when the pneumatic cylinder reaches maximum length, can make the piston direct and pneumatic cylinder contact, can cause the damage to the pneumatic cylinder top.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic cylinder buffer structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a pneumatic cylinder buffer structure, includes cylinder body and piston, a plurality of notch I has been seted up to piston one end surface for the annular, a plurality of notch I inside sliding connection has the traveller, install elastic spring I, a plurality of between traveller one end surface and the notch bottom buffer board I is installed jointly to the traveller other end, buffer board II is installed to buffer board one side, the traveller outside is located and installs elastic spring II between buffer board I and the piston, two end surfaces of buffer board are the annular and install a plurality of connecting rod, connecting rod one end is all rotated and is connected with the removal post, the spout has been seted up to cylinder body inside surface, remove post and spout sliding connection, install elastic spring three between removal post one end surface and the spout bottom, piston other end surface mounting has the push rod, the push rod externally mounted has the sliding ring, install elastic spring four between sliding ring and the piston.

Preferably, the surface of one end of the buffer plate is provided with a convex block, the surface of the other end of the buffer plate is provided with a groove, and the size and the dimension of the convex block are matched with those of the groove.

Preferably, a plurality of be located two middle part fixed mounting of buffer board between the connecting rod and have the dead lever, dead lever one end is located cylinder body inside and has seted up notch two, dead lever one end and two sliding connection in notch, install elasticity spring five between notch two and the dead lever.

Preferably, an oil pipe I is arranged between the first buffer plate and the second buffer plate and is located outside the cylinder body in a penetrating mode, and an oil pipe II is arranged on one side, close to the second buffer plate, of the first buffer plate and is located outside the cylinder body in a penetrating mode.

Preferably, ejector rods are symmetrically installed on the surface of one end of the sliding ring, an L-shaped groove is formed in the top end of the interior of the cylinder body, a moving block is connected to one end of the L-shaped groove in a sliding mode, and an elastic spring six is installed between the moving block and the L-shaped groove.

Preferably, the surface of the piston is provided with a sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this pneumatic cylinder buffer structure compresses through a pair of elastic spring one of buffer board and elastic spring two, and buffer board two drives through the connecting rod and removes the post removal, removes the post and compresses elastic spring three, and each elastic spring piston is to the inside impact force of cylinder body when the push rod shrink has effectively been reduced at the shrink in-process, prevents that the piston from causing the damage to the cylinder body.

2. This pneumatic cylinder buffer structure compresses elasticity spring four through the sliding ring, and ejector pin and movable block contact on the sliding ring move in L type groove and compress elasticity spring six, and the damage that the piston led to the fact the cylinder body when effectively having reduced the push rod and stretching the maximum length plays the cushioning effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

fig. 4 is an enlarged view of the point B in fig. 2 according to the present invention.

In the figure: 1. a cylinder body; 2. a piston; 3. a first notch; 4. a first elastic spring; 5. a first buffer plate; 6. a traveler; 7. a second elastic spring; 8. a connecting rod; 9. moving the column; 10. a chute; 11. an elastic spring III; 12. a push rod; 13. a slip ring; 14. an elastic spring IV; 15. a second buffer plate; 16. a bump; 17. a groove; 18. fixing the rod; 19. a second notch; 20. a fifth elastic spring; 21. a first oil pipe; 22. an oil pipe II; 23. a top rod; 24. an L-shaped groove; 25. a moving block; 26. an elastic spring six; 27. and (5) sealing rings.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 4, a hydraulic cylinder buffer structure of this embodiment includes a cylinder body 1 and a piston 2, a plurality of first notches 3 are annularly formed on a surface of one end of the piston 2, first sliding columns 6 are slidably connected to an inside of the first notches 3, first elastic springs 4 are installed between a surface of one end of each of the first notches 6 and a bottom end of the corresponding first notch 3, first buffer plates 5 are commonly installed at other ends of the plurality of sliding columns 6, second buffer plates 15 are installed on one sides of the first buffer plates 5, second elastic springs 7 are installed outside the corresponding sliding columns 6 and between the first buffer plates 5 and the piston 2, a plurality of connecting rods 8 are annularly installed on a surface of one end of each of the second buffer plates 15, one ends of the connecting rods 8 are rotatably connected to a moving column 9, a sliding groove 10 is formed on an inside surface of the cylinder body 1, the moving column 9 is slidably connected to the sliding groove 10, third elastic springs 11 are installed between a surface of one end of the moving column 9 and a bottom end of the sliding groove 10, a push rod 12 is installed on a surface of the other end of the piston 2, a slide ring 13 is installed outside the push rod 12, and a fourth elastic spring 14 is installed between the slide ring 13 and the piston 2, the first buffer plate 5 is contacted with the second buffer plate 15, the first buffer plate 5 drives the sliding column 6 to move, the first buffer plate 5 compresses the second elastic spring 7, the sliding column 6 compresses the first elastic spring 4, the second buffer plate 15 drives the moving column 9 to move through the connecting rod 8, the moving column 9 compresses the third elastic spring 11, the first elastic spring 4, the second elastic spring 7 and the third elastic spring 11 relieve the impact force of the piston 2 in the compression process, and the collision of the piston 2 to the bottom of the cylinder body 1 is reduced, when the push rod 12 in the hydraulic cylinder is about to reach a large length, the sliding ring 13 is in contact with the inside of the cylinder body 1, the sliding ring 13 compresses the four elastic springs 14, and the thrust of the piston 2 to the top end of the hydraulic rod is effectively reduced.

Specifically, 5 end surfaces of the first buffer plate are provided with the convex blocks 16, 15 other end surfaces of the second buffer plate are provided with the grooves 17, the convex blocks 16 are matched with the grooves 17 in size and size, when the first buffer plate 5 is in contact with the second buffer plate 15, the convex blocks 16 are located inside the grooves 17, the first buffer plate 5 is not slid when in contact with the second buffer plate 15, and the first buffer plate 5 is prevented from damaging the inner wall of the cylinder body 1.

Further, it has dead lever 18 to be located two 15 middle part fixed mounting of buffer board between a plurality of connecting rod 8, dead lever 18 one end is located 1 inside notch two 19 of having seted up of cylinder body, 18 one end of dead lever and two 19 sliding connection of notch, install five 20 of elastic spring between two 19 of notch and the dead lever 18, through 18 one end of dead lever at the inside removal of notch two 19, dead lever 18 drives two 15 removals of buffer board, play the effect of injecing to the removal of buffer board two 15, make two 15 easy and buffer board one 5 contacts.

Furthermore, a first oil pipe 21 is arranged outside the cylinder body 1 between the first buffer plate 5 and the second buffer plate 15 in a penetrating mode, a second oil pipe 22 is arranged outside the cylinder body 1 on one side, close to the first buffer plate 5 and far away from the second buffer plate 15, in a penetrating mode, the first oil pipe 21 is connected with the second oil pipe 22 and external hydraulic oil pump equipment to generate power for the piston 2 to move.

Furthermore, ejector rods 23 are symmetrically arranged on the surface of one end of the sliding ring 13, an L-shaped groove 24 is formed in the top end inside the cylinder body 1, a moving block 25 is connected to one end of the L-shaped groove 24 in a sliding mode, an elastic spring six 26 is arranged between the moving block 25 and the L-shaped groove 24, round corners are arranged at one ends of the ejector rods 23 and one end of the moving block 25, when the sliding ring 13 is about to be in contact with the cylinder body 1, the ejector rods 23 push the moving block 25 to move, the elastic spring six 26 is compressed, and buffering is provided for the sliding ring 13.

Furthermore, the surface of the piston 2 is provided with a sealing ring 27, the sealing ring 27 can ensure that hydraulic oil cannot leak, the sealing ring 27 moves together when the piston 2 moves, and the sealing ring 27 is made of rubber material.

The using method of the embodiment comprises the following steps: before the oil pipe I21 and the oil pipe II 22 are connected with an external hydraulic oil pump, the piston 2 is driven to move through the hydraulic oil pump, the piston 2 moves to drive the push rod 12 to extend out, when the push rod 12 is to reach the maximum length, the ejector rod 23 on the sliding ring 13 extends into the L-shaped groove 24 to be contacted with the moving block 25, the moving block 25 moves to compress the elastic spring six 26, meanwhile, the sliding ring 13 is contacted with the upper end inside the cylinder body 1, the sliding ring 13 compresses the elastic spring four 14, the thrust generated when the elastic spring four 14 and the elastic spring six 26 extend out is relieved, the upper end of the hydraulic rod is effectively protected, after the oil pipe I is used, when the push rod 12 is withdrawn, due to the gravity of an upper end object at the upper end of the push rod 12, a certain impact force is generated when the piston 2 descends, the piston 2 drives the plate I5 to be contacted with the buffer plate II 15, the buffer plate I5 compresses the elastic spring I4 and the elastic spring II 7, the buffer plate 15 compresses the elastic spring III 11 through the connecting rod 8, the impact force generated when the push rod 12 is withdrawn, the double impact force is relieved.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a pneumatic cylinder buffer structure, includes cylinder body (1) and piston (2), its characterized in that: piston (2) one end surface is the annular and has seted up a plurality of notch one (3), notch one (3) internal sliding connection has traveller (6), install elastic spring one (4), a plurality of between traveller (6) one end surface and notch one (3) bottom buffer board one (5) are installed jointly to the traveller (6) other end, buffer board two (15) are installed to buffer board one (5) one side, traveller (6) outside is located and installs elastic spring two (7) between buffer board one (5) and piston (2), buffer board two (15) one end surface is the annular and installs a plurality of connecting rod (8), connecting rod (8) one end all rotates and is connected with and removes post (9), spout (10) have been seted up to cylinder body (1) internal surface, remove post (9) and spout (10) sliding connection, remove post (9) one end surface and install elastic spring three (11) between spout (10) bottom, piston (2) other end surface mounting has push rod (12), push rod (12) externally mounted has slip ring (13) and four elastic spring (13).

2. The cushion structure of claim 1, wherein: the buffer board is characterized in that a convex block (16) is arranged on the surface of one end of the first buffer board (5), a groove (17) is arranged on the surface of the other end of the second buffer board (15), and the convex block (16) and the groove (17) are matched in size.

3. The cushion structure of claim 1, wherein: a plurality of it has dead lever (18) to lie in two (15) middle part fixed mounting of buffer board between connecting rod (8), dead lever (18) one end is located cylinder body (1) inside and has seted up notch two (19), dead lever (18) one end and notch two (19) sliding connection, install five (20) of elasticity spring between notch two (19) and dead lever (18).

4. The cushion structure of claim 1, wherein: the oil pipe I (21) is arranged between the first buffer plate (5) and the second buffer plate (15) and is arranged outside the cylinder body (1) in a penetrating mode, and the first buffer plate (5) is close to one side of the second buffer plate (15) and is arranged outside the cylinder body (1) in a penetrating mode and is provided with the second oil pipe (22).

5. The cushion structure of claim 1, wherein: ejector rods (23) are symmetrically installed on the surface of one end of the sliding ring (13), an L-shaped groove (24) is formed in the top end of the interior of the cylinder body (1), a moving block (25) is connected to one end of the L-shaped groove (24) in a sliding mode, and an elastic spring six (26) is installed between the moving block (25) and the L-shaped groove (24).

6. The cushion structure of claim 1, wherein: and a sealing ring (27) is arranged on the surface of the piston (2).

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