CN216783181U

CN216783181U - Take lubricated commercial car wheel hub of oil of ventilative waterproof function to ventilate stopper and wheel hub

Info

Publication number: CN216783181U
Application number: CN202121786939.7U
Authority: CN
Inventors: 王家涛; 郭凯; 郭楠
Original assignee: Kang Mai Nanjing Machinery Co ltd
Current assignee: Kang Mai Nanjing Machinery Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-06-21
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses an oil lubrication commercial vehicle wheel hub vent plug with a ventilation and waterproof function, which comprises a base with a through channel in the middle, wherein one end of the through channel in the base is connected with a vent pipe, the other end of the through channel in the base is connected with a vent valve, a dust cover is arranged outside the vent valve, and an oil-gas channel for communicating the outlet of the vent valve with the outside is arranged between the dust cover and the vent valve. The utility model provides a wheel hub, includes that axletree, axial cover establish the epaxial wheel hub body of axletree and the end cover of establishing in wheel hub body outer end, is equipped with above-mentioned oil lubrication commercial car wheel hub breather plug of taking ventilative waterproof function on the wheel hub body, base and wheel hub body fixed connection, the one end of connecting the breather pipe stretches into the oil pocket between wheel hub body and the axletree, the outside of wheel hub body is connected to the exit end of oil gas passageway. The utility model optimizes the exhaust system structure of the wheel hub, effectively reduces the leakage of oil gas, reduces the number of parts of the wheel hub, and simultaneously has the functions of dust prevention and water prevention and can ensure that the surface of the vehicle end is clean.

Description

Take lubricated commercial car wheel hub of oil of ventilative waterproof function to ventilate stopper and wheel hub

Technical Field

The utility model belongs to the field of automobile hubs, relates to a hub ventilation structure and a hub, and particularly relates to an oil lubrication commercial hub ventilation plug with a ventilation and waterproof function and the hub.

Background

In the operation process of the wheel hub, the brake operation of the chassis brake component generates heat, and meanwhile, the heat of the external brake component is also conducted to the wheel hub, so that the air in the wheel hub is heated and expanded, and the internal pressure is increased. At present, an oil lubrication exhaust structure is arranged on a hub end cover, when a customer or a consumer does not fill the hub with excessive lubricating oil according to the correct filling amount in the maintenance process, the lubricating oil is discharged from an exhaust port of the end cover beyond a safety line, and the leaked oil and dust are mixed to pollute the surface of the end cover.

Chinese utility model patent publication No. CN207485882U discloses a lubricating oil mist exhaust cover of axle wheel hub cavity, which comprises a cover body, the cover body is provided with exhaust holes penetrating through the end faces of the two ends of the cover body. The utility model also discloses a lubricating oil mist discharge system of the axle hub cavity, which comprises an axle and a hub arranged at the end part of the axle, wherein the end part of the axle is provided with an end hole, the hub is provided with a hub cavity formed by sealing an end cover of the hub, the end hole of the axle is internally covered with the lubricating oil mist exhaust cover, and the periphery of the lubricating oil mist exhaust cover is tightly matched with the inner wall of the end hole.

The oil gas oil mist in the wheel hub cavity of the technical scheme is discharged into the axle through the exhaust cover, so that the end face of the wheel hub cannot be polluted, the problem of oil gas leakage cannot be well solved, and the wheel hub is poor in adaptability and has certain limitation.

Disclosure of Invention

The utility model aims to provide the oil lubrication commercial vehicle hub vent plug with the ventilation and waterproof functions to solve the technical problems.

Another object of the present invention is to provide a wheel hub including a ventilation plug with ventilation and waterproof functions for a hub of an oil-lubricated commercial vehicle.

The utility model creatively provides an oil lubrication commercial vehicle wheel hub vent plug with a ventilation and waterproof function, which comprises a base with a through channel in the middle, wherein one end of the through channel in the base is connected with a ventilation pipe, the other end of the through channel is connected with a ventilation valve, a dust cover is arranged outside the ventilation valve, and an oil-gas channel for communicating the outlet of the ventilation valve with the outside is arranged between the dust cover and the ventilation valve.

Furthermore, the vent valve is fixedly arranged in a mounting seat, and the mounting seat is fixedly connected with the base.

Furthermore, a support is arranged on the outer side of the mounting seat, the dust cover is provided with a main body part covering the outlet of the vent valve and a plurality of expansion pieces arranged at intervals along the edge of the main body part, the support is tightly hooped by the expansion pieces to form an oil-gas channel between the dust cover and the vent valve, and an exhaust gap for communicating the oil-gas channel with the outside is formed between the dust cover and the mounting seat.

Furthermore, the circumference of the end face of the outlet side of the breather valve is arc-shaped, so that the oil-gas channel is provided with a diffusion opening gradually widened along the gas discharge direction.

Furthermore, the expansion piece has the first spacing portion of buckling to main part axis direction at the expansion piece's expansion end, the outside of support has the spacing portion of second, first spacing portion is blocked in the one side that the spacing portion of second deviates from the breather valve outlet side limitedly when the expansion piece cramps on the support.

Furthermore, the part of the mounting seat extending out of the base through channel is provided with a convex edge along the periphery, and the support abuts against one surface of the convex edge departing from the outlet side of the vent valve.

Further, the support is annular.

Furthermore, the junction of the end face of the base and the mounting seat is provided with a first sealing ring, and the support compresses the joint between the mounting seat and the base through the first sealing ring.

The utility model provides a wheel hub, establishes the end cover in wheel hub body outer end including axletree, axial cover at the epaxial wheel hub body of axletree and cover, be equipped with above-mentioned arbitrary on the wheel hub body the oil lubrication commercial car wheel hub breather plug of ventilative waterproof function in area, base and wheel hub body fixed connection, the one end of connecting the breather pipe stretches into the oil pocket between wheel hub body and the axletree, the outside of wheel hub body is connected to the exit end of oil gas passageway.

Further, the axis of the breather pipe is arranged along the radial direction of the hub body, and a second sealing ring is arranged between the base and the hub body.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model optimizes the exhaust system structure of the wheel hub, effectively reduces the leakage of oil gas, reduces the number of parts of the wheel hub, has the functions of dust prevention and water prevention, can ensure the clean appearance of the vehicle end, has stronger adaptability and is suitable for axles with different structures.

The structure is reasonably arranged, the problem that a user is excessively filled with lubricating oil can be effectively solved, and the structure is convenient to disassemble and assemble.

The vent plug is arranged in the wheel end and can be protected by other parts of the wheel end, and under the condition of oil gas discharge, the oil gas can rotate along with the wheel and is discharged out of the surface of the part under the action of centrifugal force, so that the self-cleaning effect is achieved.

Drawings

Fig. 1 is a schematic cross-sectional structure provided in the present application.

Fig. 2 is a schematic view of a split structure provided in the present application.

Fig. 3 is a partially enlarged schematic view of fig. 1.

Fig. 4 is a schematic structural view of a hub provided by the present application.

In the figure, an axle 1, a hub body 2, an end cover 3, a base 4, a breather pipe 5, a breather valve 6, a dust cover 7, a main body portion 7a, an expansion piece 7b, a first limit portion 7c, an oil-air passage 8, a mounting seat 9, a bracket 10, a second limit portion 10a, a first seal ring 11, an oil chamber 12, a second seal ring 13, and an exhaust gap 14.

Detailed Description

The utility model is further illustrated by the following examples:

as shown in figures 1 and 2, the oil lubrication commercial vehicle hub vent plug with the ventilation and waterproof functions comprises a base 4 with a through channel in the middle, a vent pipe 5 is connected to one end of the through channel in the base 4, a vent valve 6 is connected to the other end of the through channel, a dust cover 7 is arranged outside the vent valve 6, and an oil and gas channel 8 which is used for communicating the outlet of the vent valve 6 with the outside is arranged between the dust cover 7 and the vent valve 6. The breather valve 6 is in an open state when the saturated vapor pressure of the internal oil vapor reaches a set value, and is in a closed state when the saturated vapor pressure of the internal oil vapor falls below the set value. The application provides a structure has optimized wheel hub's exhaust system structure, reduces wheel hub spare part quantity, can guarantee simultaneously that the vehicle end outward appearance is clean.

Specifically, the vent valve 6 is disposed in a mounting seat 9 by screw fixation, and the mounting seat 9 is fixedly connected to the base 4 by screw fixation. The middle of the mounting seat 9 penetrates through the inlet of the vent valve 6 and the vent pipe 5. The outer side of the mounting seat 9 is provided with a support 10, the support 10 is of an annular structure, a part of the mounting seat 9 extending out of the through channel of the base 4 is provided with a convex edge along the periphery, and the support 10 abuts against one surface of the convex edge deviating from the outlet side of the vent valve 6.

The joint of the end face of the base 4 and the mounting seat 9 is provided with a first sealing ring 11, and the support 10 compresses the connecting seam between the mounting seat 9 and the base 4 through the first sealing ring 11.

The end face of the vent valve 6 on the outlet side is arc-shaped in the circumferential direction, so that the oil-gas channel 8 is provided with a diffusion port gradually widened along the gas discharge direction. The oil and gas are discharged through the exhaust gap 14 along the diffusion opening.

With reference to fig. 1, 2 and 3, the dust cover 7 has a main body portion 7a covering the outlet of the vent valve 6 and a plurality of expansion pieces 7b arranged at intervals along the edge of the main body portion 7a, the number of the expansion pieces 7b is 3 or more, the expansion pieces 7b are arranged along the circumferential direction of the main body portion 7a and bent toward the direction of the bracket 10, the main body portion 7a and the expansion pieces 7b are integrally formed, and the expansion pieces 7b have certain elasticity. The expansion pieces 7b clamp the bracket 10 to form an oil-gas channel 8 between the dust cover 7 and the vent valve 6, and an exhaust gap 14 for communicating the oil-gas channel 8 with the outside is formed between the dust cover 7 and the mounting seat 9. The oil and gas is discharged along the oil and gas passage 8 through the exhaust gap 14. The outlet of the vent gap 14 is located at the side of the dust cover 7. The dust and the moisture are isolated to the greatest extent through tortuous oil gas passageway 8 in this application and get into to have sufficient exhaust space and exhaust capacity.

The expansion sheet 7b has a first limit portion 7c bent toward the axis direction of the main body portion 7a at the movable end thereof, a second limit portion 10a is provided on the outer side of the bracket 10, the expansion sheet 7b is opened to clamp the bracket 10, and the first limit portion 7c is limitedly clamped on the surface of the second limit portion 10a away from the outlet side of the vent valve 6.

The second stopper portion 10a is preferably an annular groove in which the first stopper portion 7c is engaged by the elastic force of the expansion piece 7b in the axial direction of the main body portion 7a, and the bracket 10 is hooped outside the first seal ring 11.

As shown in fig. 1, 2 and 4, a wheel hub comprises an axle 1, a wheel hub body 2 axially sleeved on the axle 1, and an end cover 3 sleeved at the outer end of the wheel hub body 2, wherein the wheel hub body 2 is provided with the oil lubrication commercial wheel hub vent plug with the ventilation and waterproof functions, a base 4 is fixedly connected with the wheel hub body 2, one end of a connecting vent pipe 5 extends into an oil cavity 12 between the wheel hub body 2 and the axle 1, and the outlet end of an oil-gas channel 8 is connected with the outer side of the wheel hub body 2.

Preferably, the oil-lubricated commercial vehicle hub vent plug with the ventilation and waterproof functions is mounted on the side surface of the hub body 2, the axis of the vent pipe 5 is arranged along the radial direction of the hub body 2, and the second sealing ring 13 is arranged between the base 4 and the hub body 2.

Under the condition that oil gas is discharged, the oil gas can rotate along with the wheels, and the surface of the part is discharged under the action of centrifugal force, so that the self-cleaning effect is achieved.

In other embodiments of the present application, the oil lubricated commercial wheel hub vent plug with the air permeable and waterproof function is installed at other positions of the wheel hub body 2.

The vent valve 6 described in the present application is a commercially available product, and its specific structure belongs to the prior art, which is not described herein.

The working principle of the utility model is as follows:

in the working state, when the temperature inside the oil cavity 12 of the hub is too high, oil gas enters the ventilation valve 6 through the ventilation pipe 5, when the saturated vapor pressure of the internal oil vapor reaches a set value, the ventilation valve 6 is opened, and the oil gas is discharged from the outlet of the ventilation valve 6 along the oil gas channel 8 and the exhaust gap 14. The oil gas discharge path is changed through the dustproof cover 7, so that the dustproof and waterproof effects are achieved. When the temperature of the hub is lowered, the internal pressure of the oil chamber 12 of the hub is reduced, and when the saturated vapor pressure of the internal oil vapor is lower than a set value, the vent valve 6 is closed.

When the user changes lubricating oil, rotate wheel hub body 1 to breather valve 6 export orientation downwards, filling lubricating oil, when the lubricating oil liquid level surpassed the entry of breather pipe 5, lubricating oil gets into breather valve 6 along breather pipe 5, and the hydraulic pressure of lubricating oil makes breather valve 6 open discharge oil chamber 12, can carry out the collection of lubricating oil in lubricated commercial wheel hub breather plug below, guarantees like this that the user can not add excessive lubricating oil.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a take lubricated commercial car wheel hub breather plug of waterproof function of breathing freely which characterized in that: the oil gas ventilation device comprises a base (4) with a through channel in the middle, wherein one end of the through channel in the base (4) is connected with a ventilation pipe (5), the other end of the through channel is connected with a ventilation valve (6), a dust cover (7) is arranged outside the ventilation valve (6), and an oil gas channel (8) for communicating the outlet of the ventilation valve (6) with the outside is arranged between the dust cover (7) and the ventilation valve (6); the vent valve (6) is fixedly arranged in a mounting seat (9), and the mounting seat (9) is fixedly connected with the base (4); the anti-explosion ventilation valve is characterized in that a support (10) is arranged on the outer side of the mounting seat (9), the dust cover (7) is provided with a main body part (7a) covering an outlet of the ventilation valve (6) and a plurality of expansion pieces (7b) arranged along the edge of the main body part (7a) at intervals, the support (10) enables an oil-gas channel (8) to be formed between the dust cover (7) and the ventilation valve (6), and an exhaust gap (14) communicated with the oil-gas channel (8) and the outside is formed between the dust cover (7) and the mounting seat (9).

2. The air-permeable waterproof oil-lubricated commercial vehicle hub vent plug as claimed in claim 1, wherein: the end face of the outlet side of the breather valve (6) is arc-shaped in the circumferential direction, so that the oil-gas channel (8) is provided with a diffusion opening gradually widened along the gas discharge direction.

3. The air-permeable waterproof oil-lubricated commercial vehicle hub vent plug as claimed in claim 1, wherein: the movable end of the expansion piece (7b) is provided with a first limiting part (7c) bent towards the axis direction of the main body part (7a), the outer side of the support (10) is provided with a second limiting part (10a), and the first limiting part (7c) is clamped on one surface of the second limiting part (10a) departing from the outlet side of the vent valve (6) in a limited manner when the expansion piece (7b) is hooped on the support (10).

4. The air-permeable waterproof oil-lubricated commercial vehicle hub vent plug as claimed in claim 1, wherein: the part of the mounting seat (9) extending out of the base (4) through channel is provided with a convex edge along the periphery, and the support (10) is abutted to one surface of the convex edge, which is deviated from the outlet side of the vent valve (6).

5. The ventilation plug with the ventilation and waterproof functions for the hub of the oil-lubricated commercial vehicle as claimed in claim 4, wherein: the support (10) is annular.

6. The air-permeable waterproof oil-lubricated commercial vehicle hub vent plug as claimed in claim 1, wherein: the joint of the end face of the base (4) and the mounting seat (9) is provided with a first sealing ring (11), and the support (10) compresses a connecting seam between the mounting seat (9) and the base (4) through the first sealing ring (11).

7. The utility model provides a wheel hub, includes that axletree (1), axial cover establish wheel hub body (2) on axletree (1) and cover establish end cover (3) in wheel hub body (2) outer end, its characterized in that: the oil lubrication commercial vehicle wheel hub vent plug with the ventilation and waterproof functions as claimed in any one of claims 1 to 6 is arranged on the wheel hub body (2), the base (4) is fixedly connected with the wheel hub body (2), one end of the connecting vent pipe (5) extends into an oil cavity (12) between the wheel hub body (2) and the axle (1), and the outlet end of the oil-gas channel (8) is connected with the outer side of the wheel hub body (2).

8. The hub of claim 7, wherein: the axis of breather pipe (5) is along the radial setting of wheel hub body (2), be equipped with second sealing washer (13) between base (4) and wheel hub body (2).