CN211693055U

CN211693055U - Multistage hydraulic cylinder

Info

Publication number: CN211693055U
Application number: CN201922367618.2U
Authority: CN
Inventors: 刘玉环
Original assignee: Guangzhou Jingye Machinery Co ltd
Current assignee: Guangzhou Jingye Machinery Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-16
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a multistage hydraulic cylinder, which comprises a seat plate, wherein two support mechanisms are symmetrically and fixedly arranged at the top end of the seat plate, a top plate is fixedly arranged at one end of the two support mechanisms, which is far away from the seat plate, together, a top plate is fixedly arranged at one end of the two support mechanisms, a cylinder barrel is fixedly arranged on the two support mechanisms in an inserting manner, an end cover is fixedly arranged at one end of the cylinder barrel, an output end is movably arranged at one end of the cylinder barrel, an oil inlet is arranged on the outer wall of the cylinder barrel, which is close to the seat plate, an oil outlet is arranged on the outer wall of the cylinder barrel, and rubber sleeves are sleeved on the outer walls of the oil inlet and the oil outlet, effectively protects the protective film and greatly improves the protective performance of the protective film.

Description

Multistage hydraulic cylinder

Technical Field

The utility model relates to a hydraulic cylinder, in particular to multistage hydraulic cylinder belongs to hydraulic cylinder technical field.

Background

The multistage hydraulic oil cylinder is also called as a telescopic hydraulic oil cylinder and is formed by sleeving two-stage or multistage piston cylinders and mainly comprises an end cover, a cylinder barrel, an output end, a piston and the like.

Multistage hydraulic cylinder is when using, can produce vibrations among the hydro-cylinder operation process, and oil inlet and oil-out need be connected the pipeline of carrying hydraulic oil, directly fix the cylinder body in the assigned position during traditional multistage hydraulic cylinder installation, do not set up damper, when hydro-cylinder operation produces vibrations, can't cushion vibrations, be difficult to guarantee the steady output of piston, greatly reduced its shock-absorbing function, and to the cylinder, oil inlet and oil-out installation protective structure, there is the object to damage when falling above the cylinder, and when the pipeline to oil inlet and oil-out installation transport hydraulic oil, can't guarantee hard evenly, if it is excessive to exert oneself, easily lead to oil inlet and oil-out fracture and damage, greatly reduced its barrier propterty.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage hydraulic cylinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage hydraulic cylinder, includes the bedplate, the top symmetry fixed mounting of bedplate has two supporting mechanism, two the common fixed mounting of one end that the bedplate was kept away from to the supporting mechanism has the roof, two the last position that just is located between bedplate and the roof of supporting mechanism inserts fixed mounting and has the cylinder, the one end fixed mounting of cylinder has the end cover, the one end movable mounting that the end cover was kept away from to the cylinder has the output, fixed mounting has the oil inlet on the outer wall that the cylinder is close to the bedplate, the cylinder is close to on the outer wall of bedplate and keeps away from one side fixed mounting of oil inlet has the oil-out, just the one end that the cylinder was kept away from to oil inlet and oil-out all inserts in the bedplate, a rubber sleeve has all been cup jointed.

Preferably, two the supporting mechanism all includes a straight plate, and two the equal fixed mounting of straight plate is on the top of bedplate, the cylinder passes two straight plates and fixed joint on two straight plates.

Preferably, a circular opening is formed in the two straight plates at a position corresponding to the cylinder barrel, a rubber gasket is fixedly bonded to the inner wall of each circular opening, and the inner walls of the two rubber gaskets are fixedly bonded to the outer wall of the cylinder barrel.

Preferably, two through holes are symmetrically formed in the seat plate at positions corresponding to the oil inlet and the oil outlet, and the ends, far away from the cylinder barrel, of the oil inlet and the oil outlet are inserted into the correspondingly formed through holes.

Preferably, the oil inlet is kept away from the one end of cylinder and is located the bedplate and dock and install defeated oil pipe, the oil outlet is kept away from the one end of cylinder and is located the bedplate and dock and install back oil pipe, just defeated oil pipe all with the corresponding through-hole threaded connection who sets up with back oil pipe.

Preferably, a sealing washer is fixedly installed between the oil inlet and the oil delivery pipe and on the inner wall of the through hole, and a sealing washer is also fixedly installed between the oil outlet and the oil return pipe and on the inner wall of the through hole.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a multistage hydraulic cylinder has that barrier propterty is good and shock-absorbing function's characteristics, in specific use, compares with traditional multistage hydraulic cylinder comparatively speaking:

1. this hydraulic cylinder is provided with supporting mechanism, is fixed in hydraulic cylinder on supporting mechanism, can prevent through the roof that the object that the hydro-cylinder top dropped from pounding the well hydro-cylinder, can protect oil inlet and oil-out through bedplate and rubber sleeve, avoids external factors to exert oneself excessively to lead to oil inlet and oil-out fracture and damage, has improved its barrier propterty greatly.

2. This hydraulic cylinder installs the rubber packing ring in the supporting mechanism, and when the cylinder joint was in the supporting mechanism in addition, the rubber packing ring joint was between circular opening inner wall and cylinder outer wall, produced vibrations when the hydraulic cylinder operation, can cushion it through the rubber packing ring, ensured that the piston in the hydraulic cylinder can more steady output, improved its shock-absorbing function greatly.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic perspective view of the supporting mechanism of the present invention;

FIG. 3 is a schematic top view of the seat plate of the present invention;

fig. 4 is a schematic view of a partial top view structure of the present invention.

In the figure: 1. a seat plate; 11. a through hole; 12. a sealing gasket; 2. an oil inlet; 21. an oil delivery pipe; 3. an end cap; 4. a cylinder barrel; 5. a top plate; 6. a support mechanism; 61. a straight plate; 62. a circular opening; 63. a rubber gasket; 7. an output end; 8. an oil outlet; 81. an oil return pipe; 9. a rubber sleeve.

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 a technical solution: a multistage hydraulic oil cylinder comprises a seat plate 1, wherein two supporting mechanisms 6 are symmetrically and fixedly mounted at the top end of the seat plate 1, a top plate 5 is fixedly mounted at one end, far away from the seat plate 1, of each of the two supporting mechanisms 6, a cylinder barrel 4 is fixedly mounted on the two supporting mechanisms 6 in an inserted manner and is positioned between the seat plate 1 and the top plate 5, an end cover 3 is fixedly mounted at one end of the cylinder barrel 4, an output end 7 is movably mounted at one end, far away from the end cover 3, of the cylinder barrel 4, an oil inlet 2 is fixedly mounted on the outer wall, close to the seat plate 1, of the cylinder barrel 4, an oil outlet 8 is fixedly mounted on one side, far away from the oil inlet 2, far away from the cylinder barrel 4, of the oil inlet 2 and the oil outlet 8 are inserted into the seat plate 1, a rubber sleeve 9 is fixedly sleeved at positions, far away from, can carry on spacingly and with its fixed mounting in the top of bedplate 1 to hydraulic cylinder through two supporting mechanism 6, can prevent through roof 5 that the object that the hydraulic cylinder top dropped from pounding hydraulic cylinder, can protect oil inlet 2 and oil-out 8 through rubber sleeve 9, prevent that external factors from excessively touching with strength and leading to oil inlet 2 and oil-out 8 to damage, improve its barrier propterty greatly.

Wherein, two the supporting mechanism 6 all includes a straight plate 61, and two the equal fixed mounting of straight plate 61 is on the top of bedplate 1, cylinder 4 passes two straight plates 61 and fixed joint on two straight plates 61, through the fixed connection of straight plate 61 with bedplate 1 to insert the joint with cylinder 4 on straight plate 61, can effectively support hydraulic cylinder through straight plate 61, and with its fixed mounting on bedplate 1.

Wherein, two the straight board 61 is last and all excavate a circular opening 62, two with the corresponding position of cylinder 4 all fixed bonding has a rubber packing ring 63, and two on the circular opening 62 inner wall the inner wall of rubber packing ring 63 all with the outer wall fixed bonding of cylinder 4, produce vibrations when hydraulic cylinder operation in-process, can cushion its vibrations that produce through rubber packing ring 63, play the cushioning effect, ensure to let the more steady output of piston in the hydraulic cylinder.

Two through holes 11 are symmetrically drilled in the seat plate 1 and correspond to the oil inlet 2 and the oil outlet 8, and one ends, far away from the cylinder barrel 4, of the oil inlet 2 and the oil outlet 8 are inserted into the through holes 11 which are correspondingly arranged, so that the oil inlet 2 and the oil outlet 8 can be limited after being inserted into the through holes 11, and the oil inlet 2 and the oil outlet 8 can be protected by combining with a rubber sleeve 9.

Wherein, oil inlet 2 keeps away from the one end of cylinder 4 and is located 1 interior butt joint of bedplate and installs defeated oil pipe 21, the one end that cylinder 4 was kept away from to oil-out 8 just is located 1 interior butt joint of bedplate and installs back oil pipe 81, just defeated oil pipe 21 with return oil pipe 81 all with the 11 threaded connection of through-hole of corresponding setting, through threaded connection's mode, be convenient for install defeated oil pipe 21 and return oil pipe 81 bedplate 1 on, improve the convenience of its installation.

Wherein, between oil inlet 2 and defeated oil pipe 21 and be located through-hole 11 inner wall on fixed mounting have a seal ring 12, between oil-out 8 and the time oil pipe 81 and be located through-hole 11 inner wall on also fixed mounting have a seal ring 12, can prevent through seal ring 12 that oil inlet 2 and defeated oil pipe 21 butt joint department and oil-out 8 and time oil pipe 81 butt joint department oil leak, effectively improve its leakproofness.

Specifically, when the utility model is used, the hydraulic oil cylinder can be fixedly arranged at the top end of the seat plate 1 through the supporting mechanism 6, the cylinder barrel 4 can be prevented from being damaged by hitting by an object falling above the hydraulic oil cylinder through the top plate 5, the oil inlet 2 and the oil outlet 8 are inserted into the seat plate 1, the outer walls of the oil inlet 2 and the oil outlet 8 are both sleeved with the rubber sleeve 9, the oil inlet 2 and the oil outlet 8 can be prevented from being broken by external factors through the rubber sleeve 9, when the oil inlet 2 and the oil outlet 8 are connected by a conveying pipeline, the oil conveying pipe 21 and the oil return pipe 81 are both connected to the inner wall of the through hole 11 in a threaded connection mode, the joints of the oil conveying pipe 21 and the oil inlet 2 and the joints of the oil return pipe 81 and the oil outlet 8 are both provided with the sealing gaskets 12, the joints of the pipeline can be, can also guarantee that oil inlet 2 and oil-out 8 can not touched by external object, improve its barrier propterty greatly, the joint has rubber packing ring 63 between 4 outer walls of cylinder and the circular opening 62 inner wall of cylinder simultaneously, can cushion the vibrations that produce when hydraulic cylinder operation, ensures the more steady output of piston in the cylinder body, has improved its shock-absorbing function greatly.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The multi-stage hydraulic oil cylinder comprises a seat plate (1) and is characterized in that two supporting mechanisms (6) are symmetrically and fixedly mounted at the top end of the seat plate (1), a top plate (5) is fixedly mounted at one end, far away from the seat plate (1), of the two supporting mechanisms (6), a cylinder (4) is fixedly mounted at a position, inserted between the seat plate (1) and the top plate (5), on the two supporting mechanisms (6), an end cover (3) is fixedly mounted at one end of the cylinder (4), an output end (7) is movably mounted at one end, far away from the end cover (3), of the cylinder (4), an oil inlet (2) is fixedly mounted on the outer wall, close to the seat plate (1), of the cylinder (4), an oil outlet (8) is fixedly mounted at one side, far away from the oil inlet (2), of the oil inlet (2) and one end, far away from the cylinder (4), of the oil outlet (8) are both inserted into the seat, and a rubber sleeve (9) is fixedly sleeved at the positions on the outer walls of the oil inlet (2) and the oil outlet (8) and between the cylinder barrel (4) and the seat plate (1).

2. A multi-stage hydraulic ram according to claim 1 wherein: two supporting mechanism (6) all include a straight plate (61), and two equal fixed mounting in the top of bedplate (1) of straight plate (61), cylinder (4) pass two straight plates (61) and fixed joint in on two straight plates (61).

3. A multi-stage hydraulic ram according to claim 2 wherein: two the last and all cut a circular opening (62) with the corresponding position of cylinder (4) of straight board (61), two all fixed bonding has a rubber packing ring (63) on circular opening (62) inner wall, and two the inner wall of rubber packing ring (63) all is fixed bonding with the outer wall of cylinder (4).

4. A multi-stage hydraulic ram according to claim 1 wherein: two through holes (11) are symmetrically arranged on the seat plate (1) and corresponding to the oil inlet (2) and the oil outlet (8), and one ends of the oil inlet (2) and the oil outlet (8) far away from the cylinder barrel (4) are inserted into the through holes (11) which are correspondingly arranged.

5. A multi-stage hydraulic ram according to claim 1 wherein: oil inlet (2) are kept away from the one end of cylinder (4) and are located bedplate (1) interior butt joint and install defeated oil pipe (21), oil-out (8) are kept away from the one end of cylinder (4) and are located bedplate (1) interior butt joint and install back oil pipe (81), just defeated oil pipe (21) and back oil pipe (81) all with corresponding through-hole (11) threaded connection who sets up.

6. A multi-stage hydraulic ram according to claim 5 wherein: between oil inlet (2) and defeated oil pipe (21) and be located through-hole (11) inner wall on fixed mounting have a seal ring (12), also fixed mounting has a seal ring (12) between oil-out (8) and return oil pipe (81) and be located through-hole (11) inner wall.