CN214888851U

CN214888851U - Dustproof ring with waterproof function for medium-sized pollution of oil cylinder of loader

Info

Publication number: CN214888851U
Application number: CN202022965692.7U
Authority: CN
Inventors: 谢兵
Original assignee: Weiwan Technology Co ltd
Current assignee: Weiwan Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-11-26
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a loader oil cylinder medium-sized pollution is with dustproof circle of taking waterproof function, including dustproof circle main part and uide bushing and the piston rod body that is used for installing the dustproof circle main part, the seal groove has been seted up to the uide bushing inner wall, the seal groove inner wall is connected to the dustproof circle main part, the inside and outside both sides of dustproof circle main part all are connected with the boss lock ring, the dustproof circle main part includes dustproof lip and lower dustproof lip. The utility model discloses, through the dust ring main part, go up the dust lip, mutually support between lower dust lip and the boss lock ring, inlay the dust ring main part and establish in the seal groove, go up the setting of dust lip, can prevent effectively that dust or powder etc. from invading from the slot bottom, lower dust lip protrusion is in last dust lip setting, can make the setting of going up the dust lip more stable, the setting of boss lock ring has increased the holistic intensity of this device simultaneously, make difficult quilt after the installation extrude, the reduction is extruded and is leaded to the problem of damage to appear.

Description

Dustproof ring with waterproof function for medium-sized pollution of oil cylinder of loader

Technical Field

The utility model relates to a dust ring technical field especially relates to the medium-sized pollution of loader hydro-cylinder is with dust ring of taking waterproof function.

Background

The loader is mainly used for loading and unloading bulk goods, and is generally provided with a sealing system inside a hydraulic oil cylinder to ensure the sealing property of hydraulic oil.

According to the dust ring provided by the publication number CN203335871U, the root part of the inner circular surface of the dust ring is provided with an annular boss, the inner circular surface of the dust ring is provided with an inner lip, the outer circular surface of the dust ring is provided with an outer lip, the outer lip is in interference fit with the inner wall of the groove, and the outer lip is in compression assembly with the groove; the inner and outer lips form a Y-shaped structure forming a V-shaped groove therebetween. The utility model discloses a ring boss that dust ring inner circle root set up carries out firm contact with the piston cylinder, has effectively avoided the phenomenon of turning on one's side of dust ring, the outer lip that dust ring excircle surface set up in addition can realize with slot inner wall interference fit, has fully compensated the size change that dust ring itself produced because of the temperature variation to in the effectual entering jar that prevents external fluid, impurity etc. had prolonged the whole life of pneumatic cylinder.

However, the dustproof ring is easily extruded in the working process when in actual use, so that the ring body is damaged, the sealing effect is influenced, meanwhile, the dustproof effect is poor, the dustproof lip cannot be ensured to be in close contact with the piston rod along with the increase of the service time, dust or crushed aggregates and the like easily enter, and the working quality of the hydraulic oil cylinder is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a dustproof ring with a waterproof function for the medium-sized pollution of a loader oil cylinder.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the middle-sized pollution of loader hydro-cylinder is with dust ring of taking waterproof function, including dust ring main part and uide bushing and the piston rod body that is used for installing the dust ring main part, the seal groove has been seted up to the uide bushing inner wall, the connection of dust ring main part is at the seal groove inner wall, the inside and outside both sides of dust ring main part all are connected with the boss lock ring, the dust ring main part includes dustproof lip and lower dustproof lip, go up the dustproof lip and be equipped with the arc surface down between the dustproof lip, dustproof lip and the contact of piston rod body lateral wall down.

As a further description of the above technical solution:

the dust ring main body is made of self-lubricating polyurethane materials.

As a further description of the above technical solution:

the bottom of the dust ring main body is arranged in a bullet shape.

As a further description of the above technical solution:

the outer side of the upper dust lip is provided with a first inclined guide surface, and the outer side of the lower dust lip is provided with a second inclined guide surface.

As a further description of the above technical solution:

the lower dustproof lip protrudes out of the upper dustproof lip.

As a further description of the above technical solution:

the inboard edge of lower extreme of dustproof lip is equipped with the slope chamfer that is 45 settings down, the inboard slope chamfer top that just is located of dustproof lip is equipped with the frizing notch down.

The utility model discloses following beneficial effect has:

compared with the prior art, this loader oil cylinder medium-sized pollution is with dust ring of taking waterproof function, through the dust ring main part, go up the dust lip, mutually support between lower dust lip and the boss lock ring, inlay the dust ring main part and establish in the seal groove, go up the setting of dust lip, can effectively prevent invasion from the slot bottom such as dust or powder, lower dust lip protrusion sets up in last dust lip, can make the setting of going up the dust lip more stable, the setting of boss lock ring simultaneously, the holistic intensity of this device has been increased, make the installation after difficult by extrude, the reduction is extruded and is leaded to the problem appearance of damage.

Drawings

Fig. 1 is a schematic structural view of a dust ring with a waterproof function for medium-sized pollution in a cylinder of a loader according to the present invention;

fig. 2 is a schematic view of a connection structure of a dust ring with a waterproof function and a guide sleeve for medium-sized pollution in a cylinder of the loader provided by the utility model;

fig. 3 is the utility model provides a cross-sectional view of the medium-sized pollution of loader hydro-cylinder is with dustproof circle of taking waterproof function.

Illustration of the drawings:

1. a dust ring main body; 2. a guide sleeve; 3. a piston rod body; 4. a sealing groove; 5. a boss support ring; 101. an upper dust lip; 102. a lower dust lip; 103. a circular arc surface; 1011. a first inclined guide surface; 1021. a second inclined guide surface; 1022. inclining and chamfering; 1023. the oil scraping notch.

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. 1-3, the utility model provides a medium-sized pollution of loader hydro-cylinder is with dustproof circle of taking waterproof function: including dust ring main part 1 and the uide bushing 2 and the piston rod body 3 that are used for installing dust ring main part 1, dust ring main part 1 adopts self-lubricating polyurethane material to make, and the setting of bullet is presented to dust ring main part 1 bottom for it is little with 3 area of contact of piston rod body, frictional force is just little, has guaranteed the longer life of this dust ring.

Wherein, seal groove 4 has been seted up to 2 inside walls of uide bushing, dust ring main part 1 is connected at 4 inner walls of seal groove, both sides all are connected with boss lock ring 5 inside and outside dust ring main part 1, dust ring main part 1 includes dustproof lip 101 and lower dustproof lip 102, go up dustproof lip 101 and be equipped with arc surface 103 down between the dustproof lip 102, lower dustproof lip 102 and 3 lateral wall contacts of piston rod body, scrape the lip effectually, can remain certain oil film in piston rod surface, improve sealed life.

Wherein, lower dustproof lip 102 protrusion is in last dustproof lip 101 setting, it is equipped with first slope guide face 1011 to go up the dustproof lip 101 outside, the dustproof lip 102 outside is equipped with second slope guide face 1021, the inboard edge of lower extreme of dustproof lip 102 is equipped with the slope chamfer 1022 that is 45 settings down, the installation of this dust ring of being convenient for, lower dustproof lip 102 is inboard and be located slope chamfer 1022 top and be equipped with frizing notch 1023, the setting of frizing notch 1023, make things convenient for the oil storage, the smooth and easy of 3 round trip movement of piston rod body has been guaranteed.

The working principle is as follows: during the installation, will go up the junction block of dustproof lip 101 with lower dustproof lip 102 in seal groove 4, the contact of inclined chamfer 1022 and piston rod body 3 this moment has guaranteed the leakproofness, goes up dustproof lip 101 and closely laminates with seal groove 4 simultaneously, can prevent effectively that dust or powder etc. from getting into between uide bushing 2 and the dust ring main part 1, has guaranteed good leakproofness and dustproof effect.

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 medium-sized pollution of loader hydro-cylinder is with dustproof circle of taking waterproof function, including dustproof circle main part (1) and uide bushing (2) and piston rod body (3) that are used for installing dustproof circle main part (1), its characterized in that: seal groove (4) have been seted up to uide bushing (2) inside wall, dust ring main part (1) is connected at seal groove (4) inner wall, the inside and outside both sides of dust ring main part (1) all are connected with boss lock ring (5), dust ring main part (1) is including dust lip (101) and lower dust lip (102), it is equipped with arc surface (103) to go up between dust lip (101) and lower dust lip (102), lower dust lip (102) and piston rod body (3) lateral wall contact.

2. The middle-sized contamination of loader cylinder with waterproof function of claim 1, characterized in that: the dust ring main body (1) is made of self-lubricating polyurethane materials.

3. The middle-sized contamination of loader cylinder with waterproof function of claim 1, characterized in that: the bottom of the dust ring main body (1) is arranged in a bullet shape.

4. The middle-sized contamination of loader cylinder with waterproof function of claim 1, characterized in that: a first inclined guide surface (1011) is arranged on the outer side of the upper dust-proof lip (101), and a second inclined guide surface (1021) is arranged on the outer side of the lower dust-proof lip (102).

5. The middle-sized contamination of loader cylinder with waterproof function of claim 1, characterized in that: the lower dustproof lip (102) protrudes out of the upper dustproof lip (101).

6. The middle-sized contamination of loader cylinder with waterproof function of claim 1, characterized in that: lower dustproof lip (102) lower extreme inboard edge is equipped with slope chamfer (1022) that are 45 settings, lower dustproof lip (102) inboard just is located slope chamfer (1022) top and is equipped with frizing notch (1023).