CN214534479U

CN214534479U - Anti-abrasion dustproof oil seal

Info

Publication number: CN214534479U
Application number: CN202023339349.8U
Authority: CN
Inventors: 王军
Original assignee: Chengdu Jinfuli Technology Co ltd
Current assignee: Chengdu Jinfuli Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-29
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a dustproof oil blanket of abrasionproof decreases is provided with and includes: the main part, the surface of main part is provided with the protective housing that is used for the abrasionproof to decrease, the inboard of protective housing is provided with and is used for guaranteeing its surface all the time with the spring of hydro-cylinder inner wall contact. This scheme is right through setting up the protective housing the surface of dustproof oil blanket carries out the cladding, can avoid dustproof oil blanket surface to receive wearing and tearing, through the inboard of protective housing sets up the spring and can guarantees the inside in close contact with all the time of protective housing and seal guarantees the sealed effect of dustproof oil blanket.

Description

Anti-abrasion dustproof oil seal

Technical Field

The utility model relates to an oil blanket technical field especially relates to a dustproof oil blanket of abrasionproof decreases.

Background

For the hub oil seal on the axle, although the dustproof cover is arranged outside the oil seal, due to the fact that the contacted external environment is relatively severe, impurities such as dust, silt and the like in the external environment easily enter a sealing system and exist between the shaft and the oil seal, and when the shaft rotates, the impurities such as the dust, the silt and the like which are invaded generate friction on the lip of the shaft and the lip of the oil seal to cause abrasion; over time, the oil leakage phenomenon is aggravated by the abrasion of impurities to the oil seal lip, the surface of the shaft is damaged by the abrasion of the shaft, the oil leakage phenomenon is generated even after the oil seal is replaced again, and the cost is greatly increased if the shaft is replaced.

SUMMERY OF THE UTILITY MODEL

The dustproof oil seal in the prior art is not enough:

impurities easily enter the dustproof oil seal and the inner wall of the sealing body, and the outer surface of the dustproof oil seal is easily abraded, so that the sealing performance of the oil seal is damaged.

To the technical problem that above-mentioned provided, the utility model provides a dustproof oil blanket of abrasionproof decreases has solved the problem that the oil blanket surface easily weared and torn.

The technical means of the scheme is as follows:

a dust seal for protection against wear, comprising: the main part, the surface of main part is provided with the protective housing that is used for the abrasionproof to decrease, the inboard of protective housing is provided with and is used for guaranteeing its surface all the time with the spring of seal inner wall contact.

It should be noted that: the spring is arranged in the main body, one end of the spring is connected with the bottom of the spring mounting groove of the main body, the other end of the spring is connected with the inner wall of the protective shell, when the dustproof oil seal is mounted on the inner wall of the sealing body, the spring is in a compressed state, when a shaft arranged in a central hole of the oil seal vibrates, the spring can exert force on the protective shell, the outer wall of the protective shell is ensured to be always in contact with the inner wall of the sealing body, and therefore sealing is achieved; and the protective shell is made of an anti-corrosion and wear-resistant metal material.

This scheme is when practical application, and the seal in this scheme can be the hydro-cylinder, the protective housing can play the effect of protection to the body of dustproof oil blanket, avoids the seal inner wall to cause wearing and tearing to the oil blanket surface to set up the spring in the inboard of protective housing, can increase the resilience of protective housing, guarantee the leakproofness of oil blanket.

Furthermore, the protective housing is L-shaped, one end of the protective housing is inserted into the main body, and the other end of the protective housing is located on the side where the main lip is located.

When the L-shaped protective shell is arranged, one end of the protective shell can cover the outer surface of the dustproof oil seal main body, and the other end of the protective shell can cover the side surface of the outer lip and is inserted into the main body; the protective housing is more convenient to fix, and the corrosion and the damage to the oil seal main body caused by the impurities entering from the main lip side can be prevented.

Further, still include the recess, the recess is seted up in the inboard of protective housing, and is located the outside of main lip.

When in actual use, the liquid in the sealing body can enter the groove from the outer surface of the main lip, the groove is squeezed, the protective shell and the main lip are further squeezed, the protective shell is more tightly contacted with the sealing body, and the main lip is better sealed with the shaft.

Further, a water blocking structure is included for blocking liquid from entering the interior of the seal body from the outer surface of the outer lip.

The water blocking structure can prevent external liquid from entering the oil cylinder to corrode the oil cylinder.

Furthermore, the water blocking structure is a water blocking ring fixedly connected to a bending position of the protective shell and located on the side of the outer lip, the outer surface of the water blocking ring is parallel to the surface of the protective shell, the side face of the water blocking ring can be in contact with and sealed with the inner wall of the sealing body, the inner wall of the water blocking ring is an inclined plane, and the inner diameter of the free end of the water blocking ring is smaller than that of the connecting end connected to the protective shell.

The inner wall of the water blocking structure is arranged to be an inclined plane, so that the liquid is better blocked, the side face and the outer surface of the water blocking structure can be matched with the inner wall of the sealing body, and the sealing performance of the dustproof oil seal is further guaranteed.

The water-blocking ring is arranged on the outer surface of the outer lip and used for preventing impurities from entering between the inner wall of the water-blocking ring and the sealing body; and a dustproof ring is arranged on the outer surface of the outer lip.

The purpose of the retainer ring and the dust ring is to prevent foreign matters from entering the device in advance.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses a it is right to set up the protective housing the surface of dustproof oil blanket carries out the cladding, can avoid the dustproof oil blanket surface to receive wearing and tearing, through the inboard of protective housing sets up the spring and can guarantees the inside in close contact with all the time of protective housing and seal guarantees the sealed effect of dustproof oil blanket.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic cross-sectional view of the structure of the present invention.

The reference numbers in the figures are respectively 1-outer lip; 2-main lip; 3-a dustproof ring; 4-a retainer ring; 5-water-blocking ring; 6-protective shell; 7-a groove; 8-spring.

Detailed Description

The anti-wear dustproof oil seal of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, a wear-resistant dust-proof oil seal includes: the main part, the surface of main part is provided with the protective housing 6 that is used for the abrasionproof to decrease, the inboard of protective housing 6 is provided with and is used for guaranteeing its surface all the time with the spring 8 of seal inner wall contact.

It should be noted that: the spring 8 is arranged in the main body, one end of the spring 8 is connected with the bottom of a spring 8 mounting groove of the main body, the other end of the spring 8 is connected with the inner wall of the protective shell 6, when the dustproof oil seal is mounted on the inner wall of the sealing body, the spring 8 is in a compressed state, when a shaft arranged in a central hole of the oil seal generates a vibration condition, the spring 8 can generate an action of force on the protective shell 6, the outer wall of the protective shell 6 is ensured to be always in contact with the inner wall of the sealing body, and therefore sealing is achieved; and the protective shell 6 is made of an anti-corrosion and wear-resistant metal material.

This scheme is when practical application, and the seal in this scheme can be the hydro-cylinder, protective housing 6 can play the effect of protection to the body of dustproof oil blanket, avoids the seal inner wall to cause wearing and tearing to the oil blanket surface to set up spring 8 in protective housing 6's inboard, can increase protective housing 6's resilience, guarantee the leakproofness of oil blanket.

Example 2:

example 2 is a further limitation made on the basis of example 1, as shown in fig. 1:

the protective shell 6 is L-shaped, one end of the protective shell 6 is inserted into the main body, and the other end of the protective shell is located on the side where the main lip 2 is located; the protective shell is characterized by further comprising a groove 7, wherein the groove 7 is formed in the inner side of the protective shell 6 and is positioned on the outer side of the main lip 2; the water-blocking structure is used for preventing liquid from entering the sealing body from the outer surface of the outer lip 1; the water-blocking structure is a water-blocking ring 5 fixedly connected at the bending part of the protective shell 6 and positioned on the side of the outer lip 1, the outer surface of the water-blocking ring 5 is parallel to the surface of the protective shell 6, the side surface of the water-blocking ring can be in contact with and sealed with the inner wall of the sealing body, the inner wall of the water-blocking ring is an inclined surface, and the inner diameter of the free end of the water-blocking ring 5 is smaller than that of the connecting end connected to the protective shell 6; the water-blocking ring is characterized by further comprising a retaining ring 4 arranged on the outer surface of the outer lip 1, wherein the retaining ring 4 is used for preventing impurities from entering between the inner wall of the water-blocking ring 5 and the sealing body; the outer surface of the outer lip 1 is provided with a dustproof ring 3.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a dustproof oil blanket of abrasionproof decreases for install in the hydro-cylinder, include: the main part, its characterized in that, the surface of main part is provided with protective housing (6) that are used for the abrasionproof to decrease, the inboard of protective housing (6) is provided with and is used for guaranteeing spring (8) that its surface contacted with the hydro-cylinder inner wall all the time.

2. A wear-resistant dust-proof oil seal as claimed in claim 1, wherein the protective shell (6) is L-shaped, one end of the protective shell (6) is inserted into the main body, and the other end is located at the side of the main lip (2).

3. A dust seal to protect against wear, according to claim 2, further comprising a groove (7), said groove (7) opening inside said protective shell (6) and being located outside said main lip (2).

4. A dust and oil seal, to protect against wear, according to claim 1 or 3, further comprising water blocking means for preventing liquid from entering the interior of the seal body from the outer surface of the outer lip (1).

5. The anti-abrasion dustproof oil seal according to claim 4, wherein the water blocking structure is a water blocking ring (5) fixedly connected to a bending part of the protective shell (6) and located on the side where the outer lip (1) is located, the outer surface of the water blocking ring (5) is parallel to the surface of the protective shell (6), the side surface of the water blocking ring can be in contact with and sealed with the inner wall of the oil cylinder, the inner wall of the water blocking ring is an inclined surface, and the inner diameter of the free end of the water blocking ring (5) is smaller than the inner diameter of the connecting end connected to the protective shell (6).

6. The anti-abrasion dust-proof oil seal according to claim 5, further comprising a retaining ring (4) arranged on the outer surface of the outer lip (1), wherein the retaining ring (4) is used for preventing impurities from entering between the inner wall of the water-blocking ring (5) and the inner wall of the oil cylinder.

7. A dust and oil seal against wear, according to claim 4, characterized in that the outer surface of said outer lip (1) is provided with a dust ring (3).