CN212202693U

CN212202693U - Sealed hydraulic oil cylinder for discharging

Info

Publication number: CN212202693U
Application number: CN202020361240.5U
Authority: CN
Inventors: 段丽娟
Original assignee: Shanxi Huatianyang Hydraulic Equipment Co ltd
Current assignee: Shanxi Huatianyang Hydraulic Equipment Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-22
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a sealed hydraulic cylinder of unloading, including the cylinder, piston rod and piston, still including cylinder cap and mounting, the cylinder cap includes embedded portion, external portion and overcoat portion, the gomphosis of embedded portion is inside the cylinder, be provided with multiunit sealing rubber circle between embedded portion and the cylinder, first axial packing ring has set gradually from inside to outside between embedded portion and the piston rod, first O type sealing washer, first Y type oil blanket, second axial packing ring has set gradually from inside to outside between overcoat portion and the piston rod, second O type sealing washer, second Y type oil blanket and dust ring, cylinder top fixedly connected with multiunit fixed column, embedded portion gomphosis is when inside to the cylinder, the fixed column passes the fixed orifices, carry out fixed connection with it through the mounting. The utility model discloses it is strong to have the leakproofness, and the stability in use is strong, and it mainly uses as mechanical extending structure.

Description

Sealed hydraulic oil cylinder for discharging

Technical Field

The utility model relates to a hydraulic cylinder technical field, specific sealed hydraulic cylinder of unloading that says so.

Background

The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion or swinging motion, and is widely applied to various mechanical equipment, for example, the hydraulic oil cylinder is applied to a discharging mechanism, when the hydraulic oil cylinder is applied to the discharging mechanism, large dust can be generated when materials are dumped, and the motion frequency of the oil cylinder is high, so that the sealing property and the stability of the oil cylinder are required to be high, a cylinder cover of the hydraulic oil cylinder in the prior art is generally fixed by a plurality of groups of bolts, and the connection mode is easy to loosen after long-time and high-frequency work, so that the stability of the oil cylinder is influenced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a sealed hydraulic cylinder of unloading that the leakproofness is strong, the stability in use is strong.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a discharging sealing hydraulic oil cylinder comprises a cylinder barrel, a piston rod and a piston, wherein the piston rod is arranged inside the cylinder barrel, the piston is arranged at the bottom of the piston rod, the discharging sealing hydraulic oil cylinder also comprises a cylinder cover and a fixing piece, the cylinder cover comprises an embedded part, an external part and an external sleeve part, the embedded part is embedded inside the cylinder barrel, a piston hole is formed in the cylinder cover in a penetrating mode, the piston rod penetrates through the piston hole, a plurality of groups of sealing rubber rings are arranged between the embedded part and the cylinder barrel, a first axial gasket, a first O-shaped sealing ring and a first Y-shaped oil seal are sequentially arranged between the embedded part and the piston rod from inside to outside, and a second axial gasket, a second O-shaped sealing ring, a second Y-shaped oil seal and a dust ring are sequentially arranged between the external sleeve part and the piston rod from inside to;

the fixing device comprises a cylinder barrel, and is characterized in that a plurality of groups of fixing columns are fixedly connected to the top of the cylinder barrel, threads are arranged at the end parts of the fixing columns at a certain distance, a group of fixing holes are formed in the external portion of the fixing columns corresponding to each group, the embedded portion is embedded into the cylinder barrel, the fixing columns penetrate through the fixing holes, the fixing piece comprises a middle nut and side plates fixedly connected to the two sides of the middle nut, round holes are formed in the side plates, the external portion of the fixing column is provided with screw holes matched with the round holes, the middle nut is in threaded connection with the top of the fixing column, the round holes correspond to the screw holes after the fixing piece is screwed, and bolts penetrate through the round.

The bottom of the cylinder barrel is provided with a mounting hole with a bearing, and the top of the piston rod is provided with an assembly hole with a bearing.

And a piston sealing ring, an antiwear ring and an antifouling ring are sequentially arranged between the piston and the cylinder barrel from inside to outside.

The sealing rubber ring adopts 3-5 groups, and the upper part of the cylinder barrel is provided with two groups of oil inlet and outlet holes.

The utility model discloses a following beneficial effect has:

1. the cylinder cover in the device is provided with an embedded part and an outer sleeve part, the embedded part is embedded into the cylinder barrel, a plurality of groups of sealing rubber rings are arranged between the cylinder cover and the cylinder barrel, a first axial gasket, a first O-shaped sealing ring and a first Y-shaped oil seal are arranged between the cylinder cover and the piston rod, and a second axial gasket, a second O-shaped sealing ring, a second Y-shaped oil seal and a dust ring are arranged between the outer sleeve part and the piston rod, so that the device body is high in sealing performance;

2. the cylinder cap is provided with external portion in this device, cylinder upper portion be provided with the fixed column, the fixed column passes external portion, and connects through the mounting, and is provided with the round hole on the mounting again, external portion and the corresponding screw that is provided with of round hole, through the bolt with mounting and external portion fixed connection again, but such connected mode furthest's assurance mounting can not become flexible to avoid hydraulic cylinder service failure, guarantee stability in use.

Drawings

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

FIG. 2 is a schematic diagram of a0 detail structure in FIG. 1;

fig. 3 is a schematic view of the structure of the middle fixing member of the present invention.

In the figure: 1 cylinder barrel, 2 piston rod, 3 piston, 4 fixed part, 5 embedded part, 6 external connection part, 7 external sleeve part, 8 sealing rubber ring, 9 first axial gasket, 10 first O-shaped sealing ring, 11 first Y-shaped oil seal, 12 second axial gasket, 13 second O-shaped sealing ring, 14 second Y-shaped oil seal, 15 dust-proof ring, 16 fixed column, 17 middle nut, 18 side plate, 19 round hole, 20 bolt, 21 mounting hole, 22 mounting hole, 23 piston sealing ring, 24 wear-resistant ring, 25 anti-fouling ring and 26 oil inlet and outlet hole.

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. 1-3, a sealed hydraulic cylinder for discharging comprises a cylinder barrel 1, a piston rod 2 and a piston 3, wherein the piston rod 2 is arranged inside the cylinder barrel 1, the piston 3 is arranged at the bottom of the piston rod 2, the sealed hydraulic cylinder further comprises a cylinder cover and a fixing part 4, the cylinder cover comprises an embedded part 5, an external part 6 and an external part 7, the embedded part 5 is embedded inside the cylinder barrel 1, a piston hole is arranged through the cylinder cover, the piston rod 2 passes through the piston hole, a plurality of groups of sealing rubber rings 8 are arranged between the embedded part 5 and the cylinder barrel 1, a first axial gasket 9 and a first O-shaped sealing ring 10 are sequentially arranged between the embedded part 5 and the piston rod 2 from inside to outside, a second axial gasket 12, a second O-shaped sealing ring 13, a second Y-shaped oil seal 14 and a dust ring 15 are sequentially arranged between the first Y-shaped oil seal 11, the outer sleeve part 7 and the piston rod 2 from inside to outside, and the sealing performance of the hydraulic oil cylinder can be ensured through the structural design;

1 top fixedly connected with multiunit fixed column 16 of cylinder, and the end position of every group fixed column 16 is provided with the screw thread of one section distance, it all is provided with a set of fixed orifices to correspond every group fixed column 16 in external portion 6, 5 gomphosis of embedded portion is when inside to cylinder 1, fixed column 16 passes the fixed orifices, mounting 4 includes middle part nut 17 and fixed connection curb plate 18 in middle part nut 17 both sides, be provided with round hole 19 on the curb plate 18, be provided with the screw with round hole 19 assorted in external portion 6,

middle part nut

17 and 16 top threaded connection of fixed column, and it is corresponding with the screw to screw back round hole 19, it passes round hole 19 threaded connection in the screw to be provided with bolt 20, but such connected mode furthest's assurance mounting 4 can not become flexible, thereby avoid hydraulic cylinder service failure, guarantee.

The utility model discloses in, 1 bottom of cylinder is provided with the mounting hole 21 of taking the bearing, and the top of piston rod 2 is provided with the pilot hole 22 of taking the bearing, mounting hole 21 be used for with be equipped with joint bearing and unload that the pusher is articulated, pilot hole 22 articulated with the carriage.

A piston sealing ring 23, an antiwear ring 24 and an antifouling ring 25 are sequentially arranged between the piston 3 and the cylinder barrel 1 from inside to outside, so that the sealing performance and the using effect of the piston 3 are ensured.

The sealing rubber ring 8 adopts 3-5 groups, the upper part of the cylinder barrel 1 is provided with two groups of oil inlet and outlet holes 26, and the oil inlet and outlet holes 26 are used for transmitting oil, so that the working condition of the oil cylinder is met.

The cylinder cover in the device is provided with an embedded part 5 and an outer sleeve part 7, the embedded part 5 is embedded into a cylinder barrel 1, a plurality of groups of sealing rubber rings 8 are arranged between the cylinder barrel 1 and the inner sleeve part, the sealing performance between the cylinder barrel 1 and the embedded part 5 is realized through the sealing rubber rings 8, so that oil is prevented from flowing out of a gap between the cylinder barrel 1 and the inner sleeve part, a first axial gasket 9, a first O-shaped sealing ring 10 and a first Y-shaped oil seal 11 are arranged between the embedded part 5 and a piston rod 2, a second axial gasket 12, a second O-shaped sealing ring 13, a second Y-shaped oil seal 14 and a dust ring 15 are arranged between the outer sleeve part 7 and the piston rod 2, the oil can be prevented from flowing out of the gap between the piston rod 2 and the cylinder cover, and the; the cylinder cap is provided with external portion 6 in this device, 1 upper portion of cylinder be provided with fixed column 16, fixed column 16 passes external portion 6, and connects through mounting 4, and is provided with round hole 19 again on mounting 4, external portion 6 and the corresponding screw that is provided with of round hole 19 are with mounting 4 and external portion 6 fixed connection again through bolt 20, but such connected mode furthest's assurance mounting 4 can not become flexible to avoid hydraulic cylinder service failure, guarantee stability in 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a sealed hydraulic cylinder unloads, includes cylinder (1), piston rod (2) and piston (3), cylinder (1) is inside to be provided with piston rod (2), piston rod (2) bottom is provided with piston (3), its characterized in that: the cylinder cover comprises an embedded portion (5), an external portion (6) and an external sleeve portion (7), the embedded portion (5) is embedded inside the cylinder barrel (1) and penetrates through the cylinder cover to be provided with a piston hole, the piston rod (2) penetrates through the piston hole, a plurality of groups of sealing rubber rings (8) are arranged between the embedded portion (5) and the cylinder barrel (1), a first axial gasket (9), a first O-shaped sealing ring (10) and a first Y-shaped oil seal (11) are sequentially arranged between the embedded portion (5) and the piston rod (2) from inside to outside, and a second axial gasket (12), a second O-shaped sealing ring (13), a second Y-shaped oil seal (14) and a dust ring (15) are sequentially arranged between the external sleeve portion (7) and the piston rod (2) from inside to outside;

a plurality of groups of fixing columns (16) are fixedly connected with the top of the cylinder barrel (1), the end part of each group of fixing columns (16) is provided with a distance of screw thread, each group of the fixing columns (16) corresponding to the external connecting part (6) is provided with a group of fixing holes, when the embedded part (5) is embedded in the cylinder barrel (1), the fixing column (16) penetrates through the fixing hole, the fixing piece (4) comprises a middle screw cap (17) and side plates (18) fixedly connected to two sides of the middle screw cap (17), the side plate (18) is provided with a round hole (19), the external connecting part (6) is provided with a screw hole matched with the round hole (19), the middle screw cap (17) is in threaded connection with the top of the fixed column (16), and after the round hole (19) is screwed tightly, the round hole corresponds to the screw hole, and a bolt (20) penetrates through the round hole (19) and is connected in the screw hole in a threaded manner.

2. The hydraulic discharge seal ram of claim 1, wherein: the bottom of the cylinder barrel (1) is provided with a mounting hole (21) with a bearing, and the top of the piston rod (2) is provided with an assembly hole (22) with a bearing.

3. The hydraulic discharge seal ram of claim 1, wherein: piston (3) with from interior to exterior has set gradually piston sealing washer (23), ring (24) of wearing and antifouling ring (25) between cylinder (1).

4. The hydraulic discharge seal ram of claim 1, wherein: the sealing rubber ring (8) adopts 3-5 groups, and the upper part of the cylinder barrel (1) is provided with two groups of oil inlet and outlet holes (26).