CN219509923U - Lubricating type hydraulic cylinder - Google Patents

Abstract

The utility model discloses a lubrication type hydraulic cylinder which comprises a hydraulic cylinder body, wherein the hydraulic cylinder body is composed of a cylinder barrel, a sliding rod, a piston and a base, a sliding cavity is arranged in the cylinder barrel, the sliding rod is arranged in the center of the inner part of the sliding cavity, the piston is slidably arranged in the inner part of the sliding cavity, a gasket is fixedly arranged on the outer side of the piston in an embedded mode, the gasket is arranged on the outer wall of the piston and slidably arranged in the cylinder barrel, the gasket is not completely wrapped with the piston, the gasket is driven to slide in the cylinder barrel when the piston ascends and descends in the cylinder barrel, lubricating oil on the inner wall of the cylinder barrel is scraped by the gasket, meanwhile, lubricating oil can be smeared on the inner wall of the cylinder barrel uniformly, an oil discharge port is formed in one side of the bottom of the base, and then the gasket is driven to the base after repeated sliding and ascending and descending, and the excessive accumulated lubricating oil is further driven by the gasket, and meanwhile the sealing performance of the device is improved by an O-shaped sealing ring arranged in a semicircular disc of the hydraulic cylinder.

Description

Lubricating type hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a lubrication type hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuating element 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.

Chinese patent application publication No. CN112943740a discloses a hydraulic cylinder assembly comprising: the hydraulic cylinder, mount pad and oil pipe, the mount pad is connected on the pneumatic cylinder, and be in the inside of mount pad is formed with pole chamber oil feed passageway, has pole chamber oil return passageway and no pole chamber oil feed return passageway, wherein, oil pipe connects the pneumatic cylinder with between the mount pad, so that the pole chamber of pneumatic cylinder with pole chamber oil feed passageway, and have the pole chamber with pole chamber oil return passageway intercommunication, no pole chamber oil feed return passageway with the no pole chamber intercommunication of pneumatic cylinder.

However, when the hydraulic cylinder assembly provided in the above technical scheme is actually used, the hydraulic cylinder assembly still has the defects that an oil film is formed on the surface of the hydraulic cylinder in the current telescopic reciprocation process, and the oil film is accumulated in the sliding cavity for a long time, so that the lifting of the sliding rod is affected.

Disclosure of Invention

The present utility model is directed to a lubrication type hydraulic cylinder, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lubricated formula pneumatic cylinder, includes the pneumatic cylinder, the pneumatic cylinder comprises cylinder, slide bar, piston and base combination, the inside smooth chamber that is provided with of cylinder, the inside center in smooth chamber is provided with the slide bar, the interior bottom slidable mounting in smooth chamber has the piston, the outside embedding fixed mounting of piston has the gasket, the outside and the inner wall sliding connection of piston of gasket, the front end of piston is connected with the bottom of slide bar, the afterbody fixed mounting of cylinder has the base, the front end fixed mounting of cylinder has the semicircle board, the oiling mouth has been seted up to the outside one side of front end of cylinder.

Preferably, the slide bar runs through the semicircle, fixed mounting has a plurality of sealing washer on the inner wall of semicircle, the sealing washer cup joints in the outside of slide bar, the sealing washer is one of O shape sealing washer, Y shape sealing washer, V-arrangement sealing washer.

Preferably, one side of the base is fixedly provided with a deflation valve, the interior of the deflation valve is communicated with the inner sliding cavity of the cylinder barrel, and the other side of the base is provided with an oil drain port.

Compared with the prior art, the utility model has the beneficial effects that: through installing the gasket on the outer wall of piston, and slidable mounting is inside the cylinder, and this piston of this gasket incomplete parcel, and then the piston has driven the gasket and has slided in the cylinder when the inside lift of cylinder, and then scrape the lubricating oil on the cylinder inner wall by the gasket and wipe, can smear lubricating oil again simultaneously evenly on the cylinder inner wall, and set up the oil drain port in bottom one side of base, and then the gasket is after repeated slip lift, and then make the excessive lubricating oil of accumulation drive to the base, and then can flow into the oil drain port with the lubricating oil of accumulation in, be convenient for derive, the O type sealing washer of installation has increased the device leakproofness in the semicircle of this pneumatic cylinder simultaneously.

Drawings

FIG. 1 is a schematic diagram of a hydraulic cylinder according to the present utility model;

FIG. 2 is a schematic view of the base and piston structure of the present utility model;

fig. 3 is an enlarged schematic view of the area a of fig. 1 according to the present utility model.

In the figure: 1. a hydraulic cylinder; 2. a cylinder; 3. a slide bar; 4. a piston; 5. an oil filling port; 6. a half-disc; 7. a sliding cavity; 8. a base; 9. a seal ring; 10. a bleed valve; 11. a gasket.

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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, an embodiment of the present utility model is provided: the utility model provides a lubricated pneumatic cylinder, includes pneumatic cylinder 1, pneumatic cylinder 1 comprises cylinder 2, slide bar 3, piston 4 and base 8 combination, the inside smooth chamber 7 that is provided with of cylinder 2, the inside center of smooth chamber 7 is provided with slide bar 3, the interior bottom slidable mounting in smooth chamber 7 has piston 4, the outside embedding fixed mounting of piston 4 has gasket 11, the outside and the inner wall sliding connection of piston 4 of gasket 11, the front end of piston 4 is connected with the bottom of slide bar 3, the afterbody fixed mounting of cylinder 2 has base 8, the front end fixed mounting of cylinder 2 has semicircle disc 6, oiling mouth 5 has been seted up to the outside one side of the front end of cylinder 2.

In this embodiment, the piston 4 is slidably mounted under the cylinder 2 of the hydraulic cylinder 1, the gasket 11 is wrapped and mounted on the outer wall of the piston 4, and the gasket 11 is slidably connected with the inner wall of the cylinder 2, so that when the piston 4 is slidably lifted in the cylinder 2, the gasket 11 is driven to synchronously move in the cylinder 2, since the gasket 11 does not wrap the lower end of the piston 4, a certain step shape exists between the thickness of the gasket 11 and the outer side of the piston 4, when the gasket 11 slides in the cylinder 2, the lubricating oil on the inner wall of the cylinder 2 is scraped through the step shape of the gasket 11 and the piston 4, and meanwhile, when the gasket 11 slides in the cylinder 2, the lubricating oil is uniformly smeared on the inner wall of the cylinder 2 through the gasket 11, and an oil drain port is formed on one side of the bottom of the base 8.

Further, the sliding rod 3 penetrates through the semicircular disc 6, a plurality of sealing rings 9 are fixedly mounted on the inner wall of the semicircular disc 6, the sealing rings 9 are sleeved outside the sliding rod 3, and the sealing rings 9 are one of O-shaped sealing rings, Y-shaped sealing rings and V-shaped sealing rings.

In this embodiment, the types of sealing rings are various, including an O-ring, a Y-ring, a V-ring, etc., where the O-ring has a good sealing performance, a small friction factor, and a small installation space, the Y-ring is used for sealing a hydraulic cylinder with a high reciprocating speed under a pressure of 20Mpa, and the V-ring can be used for sealing a hydraulic cylinder with a pressure of 50Mpa, and has a good durability (selected according to different pressure requirements).

Further, a deflation valve 10 is fixedly arranged on one side of the base 8, the interior of the deflation valve 10 is communicated with the inner sliding cavity 7 of the cylinder barrel 2, and an oil drain port is formed in the other side of the base 8.

In this embodiment, the air inlet and outlet of the device can be realized by the air release valve 10 arranged on one side of the base 8, and the oil drain port is arranged on one side of the base 8, so that excessive lubricating oil accumulated in the cylinder 2 can be conveniently discharged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. A lubricated hydraulic cylinder comprising a hydraulic cylinder (1), characterized in that: the hydraulic cylinder (1) comprises a cylinder barrel (2), a sliding rod (3), a piston (4) and a base (8), a sliding cavity (7) is formed in the cylinder barrel (2), the sliding rod (3) is arranged in the center of the inside of the sliding cavity (7), the piston (4) is slidably mounted in the inner bottom of the sliding cavity (7), a gasket (11) is fixedly mounted in the outer side of the piston (4), the outer side of the gasket (11) is slidably connected with the inner wall of the piston (4), the front end of the piston (4) is connected with the bottom of the sliding rod (3), the base (8) is fixedly mounted at the tail of the cylinder barrel (2), and an oil filling port (5) is formed in one side of the outer side of the front end of the cylinder barrel (2).

2. A lubricated hydraulic cylinder according to claim 1, wherein: the sliding rod (3) penetrates through the semicircular disc (6), and a plurality of sealing rings (9) are fixedly arranged on the inner wall of the semicircular disc (6).

3. A lubricated hydraulic cylinder according to claim 2, wherein: the sealing ring (9) is sleeved outside the sliding rod (3).

4. A lubricated hydraulic cylinder according to claim 2, wherein: the sealing ring (9) is one of an O-shaped sealing ring, a Y-shaped sealing ring or a V-shaped sealing ring.

5. A lubricated hydraulic cylinder according to claim 1, wherein: one side of the base (8) is fixedly provided with a deflation valve (10), and the interior of the deflation valve (10) is communicated with the inner sliding cavity (7) of the cylinder barrel (2).

6. A lubricated hydraulic cylinder according to claim 1, wherein: an oil drain port is formed in the other side of the base (8).