CN214404178U

CN214404178U - Hydraulic lifting oil cylinder with low-pressure lubricating and sealing structure

Info

Publication number: CN214404178U
Application number: CN202120154840.9U
Authority: CN
Inventors: 谷太法; 魏建华; 秦涛云; 朱亚峰
Original assignee: Jiaozuo Zhongde Hydraulic Machinery Co ltd
Current assignee: Jiaozuo Zhongde Hydraulic Machinery Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-10-15
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a hydraulic lifting oil cylinder with a low-pressure lubricating and sealing structure, which comprises a cylinder barrel, wherein the inside of the cylinder barrel is fixedly connected with a mounting ring plate, the inside of the mounting ring plate is fixedly connected with a first mounting plate through a plurality of first connecting rods, the side wall of the first mounting plate is fixedly connected with a limiting rod, the side wall of the mounting ring plate is fixedly connected with a contact plate through a plurality of telescopic rods, a piston is arranged inside the cylinder barrel and positioned at one side of the mounting ring plate, the side wall of the piston is fixedly connected with an output rod, one end of the cylinder barrel is fixedly connected with a first mounting frame, the side wall of the first mounting frame is fixedly connected with a second mounting plate through a plurality of second connecting rods, the side wall of the second mounting plate is fixedly connected with a mounting block, the side wall of the mounting block is provided with a threaded hole, the inside of the threaded hole is provided with a threaded rod, one end of the threaded rod is fixedly connected with an extrusion plate. The utility model discloses, convenient exhaust, safe and reliable, operating condition is stable.

Description

Hydraulic lifting oil cylinder with low-pressure lubricating and sealing structure

Technical Field

The utility model relates to a hydraulic cylinder field especially relates to a hydraulic lifting cylinder with lubricated seal structure of low pressure.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

When the oil cylinder works, gas is mixed into hydraulic oil, and is discharged to enter the cylinder body when the oil cylinder works at high frequency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the hydraulic lifting oil cylinder who provides has low pressure lubrication sealing structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic lifting oil cylinder with a low-pressure lubricating and sealing structure comprises a cylinder barrel, wherein an installation ring plate is fixedly connected inside the cylinder barrel, a first installation plate is fixedly connected inside the installation ring plate through a plurality of first connecting rods, a limiting rod is fixedly connected to the side wall of the first installation plate, a contact plate is fixedly connected to the side wall of the installation ring plate through a plurality of telescopic rods, a piston is arranged inside the cylinder barrel and on one side of the installation ring plate, and an output rod is fixedly connected to the side wall of the piston;

the utility model discloses a cylinder, including the first installing frame of one end fixedly connected with of cylinder, the lateral wall of first installing frame is through a plurality of second connecting rod fixedly connected with second mounting panels, the lateral wall fixedly connected with installation piece of second mounting panel, the lateral wall of installation piece sets up threaded hole, the inside of screw hole is provided with the threaded rod, the one end fixedly connected with stripper plate of threaded rod, the lateral wall of stripper plate just is located the outside of threaded rod and extrudees the frame through a plurality of first spring fixedly connected with, the one end fixedly connected with second installing frame of first installing frame is kept away from to the cylinder, the inside fixedly connected with sleeve of second installing frame, the lateral wall of first installing frame and second installing frame all is provided with the oil inlet.

As a further description of the above technical solution:

and the surfaces of the telescopic rods are provided with second springs.

As a further description of the above technical solution:

a pair of first seal grooves is formed in the outer side wall of the piston, a first seal ring is arranged inside the first seal groove, and a linear bearing is arranged inside the piston.

As a further description of the above technical solution:

the output rod is internally provided with a placing hole.

As a further description of the above technical solution:

the side wall of the first mounting frame is provided with a through hole at the center.

As a further description of the above technical solution:

and one side of the threaded rod, which is far away from the extrusion plate, is fixedly connected with a turntable.

As a further description of the above technical solution:

the lateral wall fixedly connected with first rubber packing pad of stripper plate, the lateral wall fixedly connected with second rubber packing pad of extrusion frame.

As a further description of the above technical solution:

a pair of third seal grooves is formed in the sleeve, a third seal ring is arranged in the third seal groove, and a dustproof ring is arranged at one end of the sleeve.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this hydraulic lifting hydro-cylinder with low pressure lubrication sealing structure through rotating the carousel, drives stripper plate and extrusion frame and moves, realizes the inside exhaust to the cylinder to sealed through first rubber packing pad and the sealed pad realization device of second rubber, the device is conveniently discharged air.

2. Compared with the prior art, this hydraulic lifting cylinder with low pressure lubrication sealing structure, the inside of cylinder is provided with the installation crown plate, and the lateral wall of installation crown plate is provided with the contact plate, carries out the shock attenuation through a plurality of second spring cooperation contact plates to the piston, device safe and reliable.

3. Compared with the prior art, the hydraulic lifting oil cylinder with the low-pressure lubricating and sealing structure is provided with the limiting rod, the piston is arranged on the surface of the limiting rod, the linear bearing is arranged inside the piston, when the piston moves, the limiting rod provides a limiting effect, the piston is ensured to move stably, and the working state of the hydraulic lifting oil cylinder is stable.

Drawings

Fig. 1 is a front view of a hydraulic lift cylinder with a low pressure lubrication sealing structure according to the present invention;

fig. 2 is a front view of the internal structure of a hydraulic lift cylinder with a low-pressure lubrication sealing structure according to the present invention;

fig. 3 is a schematic view of a mounting ring plate mounting structure of a hydraulic lift cylinder with a low-pressure lubrication sealing structure provided by the present invention;

fig. 4 is a partial enlarged view of a portion a in fig. 1 of a hydraulic lift cylinder with a low-pressure lubrication sealing structure provided by the present invention.

Illustration of the drawings:

1. a cylinder barrel; 2. installing a ring plate; 3. a first connecting rod; 4. a first mounting plate; 5. a limiting rod; 6. a telescopic rod; 7. a contact plate; 8. a piston; 9. an output rod; 10. a first mounting frame; 11. a second connecting rod; 12. a second mounting plate; 13. mounting blocks; 14. a threaded hole; 15. a threaded rod; 16. a pressing plate; 17. a first spring; 18. extruding the frame; 19. a second mounting frame; 20. a sleeve; 21. an oil inlet; 22. a second spring; 23. a first seal groove; 24. a first seal ring; 25. a linear bearing; 26. a placement hole; 27. a through hole; 30. a turntable; 31. a first rubber packing; 32. a second rubber packing; 33. a third seal groove; 34. a third seal ring; 35. a dust ring.

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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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 in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of hydraulic lift cylinder with lubricated seal structure of low pressure: the cylinder barrel comprises a cylinder barrel 1, wherein an installation ring plate 2 is fixedly connected inside the cylinder barrel 1, a first installation plate 4 is fixedly connected inside the installation ring plate 2 through a plurality of first connecting rods 3, a limiting rod 5 is fixedly connected to the side wall of the first installation plate 4, a contact plate 7 is fixedly connected to the side wall of the installation ring plate 2 through a plurality of telescopic rods 6, a piston 8 is arranged inside the cylinder barrel 1 and on one side of the installation ring plate 2, a linear bearing 25 is arranged inside the piston 8, the linear bearing 25 is arranged on the surface of the limiting rod 5, an output rod 9 is fixedly connected to the side wall of the piston 8, and a placement hole 26 is formed inside the output rod 9 and used for placing the output rod 9;

the first installing frame 10 of one end fixedly connected with of cylinder 1, the lateral wall of first installing frame 10 is through a plurality of second connecting rods 11 fixedly connected with second mounting panel 12, the lateral wall fixedly connected with installation piece 13 of second mounting panel 12, the lateral wall of installation piece 13 is seted up threaded hole 14, the inside of threaded hole 14 is provided with threaded rod 15, the one end fixedly connected with stripper plate 16 of threaded rod 15, stripper plate 16's lateral wall just is located the outside of threaded rod 15 and extrudes frame 18 through a plurality of first springs 17 fixedly connected with, the one end fixedly connected with second installing frame 19 of first installing frame 10 is kept away from to cylinder 1, the inside fixedly connected with sleeve 20 of second installing frame 19, the lateral wall of first installing frame 10 and second installing frame 19 all is provided with oil inlet 21.

The surface of telescopic link 6 all is provided with second spring 22, realize the speed reduction shock attenuation, a pair of first seal groove 23 has been seted up to the lateral wall of piston 8, the inside of first seal groove 23 is provided with first sealing washer 24, the lateral wall of first installing frame 10 just is located central point and puts and has seted up through-hole 27, one side fixedly connected with carousel 30 of stripper plate 16 is kept away from to threaded rod 15, the first rubber packing pad 31 of sidewall fixedly connected with of stripper plate 16, the lateral wall fixedly connected with second rubber packing pad 32 of stripper frame 18, a pair of third seal groove 33 has been seted up to sleeve 20's inside, the inside of third seal groove 33 is provided with third sealing washer 34, sleeve 20's one end is provided with dust ring 35.

The working principle is as follows: a pair of oil inlets 21 are connected with an oil inlet pipe, and hydraulic oil is injected to drive the piston 8 to move and the output rod 9 to move, for external output, the piston 8 moves on the surface of the limiting rod 5 to ensure the stable movement of the piston 8, the contact plate 7 and the second spring 22 are arranged to decelerate the piston 8, so that the piston 8 is prevented from moving too fast to damage the device, after the work is finished, the rotary table 30 is rotated, the threaded rod 15 moves in the threaded hole 14, the extrusion plate 16 moves and is separated from contact with the first mounting frame 10, gas in the cylinder barrel 1 is discharged from the through hole 27, stable operation of the device is ensured, the rotary table 30 is rotated, the threaded rod 15 resets, the extrusion plate 16 contacts the first mounting frame 10, sealing is realized by the first rubber sealing gasket 31, the extrusion frame 18 contacts the first mounting frame 10, the first spring 17 stretches out and draws back, the extrusion frame 18 is fixed in auxiliary extrusion, and sealing is realized by the second rubber sealing gasket 32.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hydraulic lifting cylinder with lubricated seal structure of low pressure, includes cylinder (1), its characterized in that: the cylinder barrel is characterized in that a mounting ring plate (2) is fixedly connected to the inside of the cylinder barrel (1), a first mounting plate (4) is fixedly connected to the inside of the mounting ring plate (2) through a plurality of first connecting rods (3), a limiting rod (5) is fixedly connected to the side wall of the first mounting plate (4), a contact plate (7) is fixedly connected to the side wall of the mounting ring plate (2) through a plurality of telescopic rods (6), a piston (8) is arranged inside the cylinder barrel (1) and on one side of the mounting ring plate (2), and an output rod (9) is fixedly connected to the side wall of the piston (8);

one end of the cylinder barrel (1) is fixedly connected with a first mounting frame (10), the side wall of the first mounting frame (10) is fixedly connected with a second mounting plate (12) through a plurality of second connecting rods (11), the side wall of the second mounting plate (12) is fixedly connected with a mounting block (13), the side wall of the mounting block (13) is provided with a threaded hole (14), a threaded rod (15) is arranged inside the threaded hole (14), one end of the threaded rod (15) is fixedly connected with an extrusion plate (16), the side wall of the extrusion plate (16) is positioned outside the threaded rod (15) and is fixedly connected with an extrusion frame (18) through a plurality of first springs (17), one end of the cylinder barrel (1) far away from the first mounting frame (10) is fixedly connected with a second mounting frame (19), and the inside of the second mounting frame (19) is fixedly connected with a sleeve (20), the side walls of the first mounting frame (10) and the second mounting frame (19) are provided with oil inlets (21).

2. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: the surface of the telescopic rod (6) is provided with a second spring (22).

3. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: a pair of first seal grooves (23) are formed in the outer side wall of the piston (8), first seal rings (24) are arranged inside the first seal grooves (23), and linear bearings (25) are arranged inside the piston (8).

4. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: the output rod (9) is internally provided with a placing hole (26).

5. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: the side wall of the first mounting frame (10) is provided with a through hole (27) at the center.

6. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: and a rotary disc (30) is fixedly connected to one side of the threaded rod (15) far away from the extrusion plate (16).

7. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: the lateral wall fixedly connected with first rubber packing pad (31) of stripper plate (16), the lateral wall fixedly connected with second rubber packing pad (32) of extrusion frame (18).

8. The hydraulic lift cylinder with a low pressure lubrication seal structure of claim 1, wherein: a pair of third seal groove (33) has been seted up to the inside of sleeve (20), the inside of third seal groove (33) is provided with third sealing washer (34), the one end of sleeve (20) is provided with dust ring (35).