CN214688840U

CN214688840U - Hub end cover

Info

Publication number: CN214688840U
Application number: CN202120350969.7U
Authority: CN
Inventors: 李十放; 马常伟; 赵清华; 岳中政; 张建中
Original assignee: Shandong Haoxin Machinery Co Ltd
Current assignee: Shandong Haoxin Machinery Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-11-12
Anticipated expiration: 2031-02-07

Abstract

The utility model discloses a wheel hub end cover, include: the cover body, wheel hub end cover still include ventilative oil seal valve, and ventilative oil seal valve is including the fixed valve body that passes the cover body and the grease proofing ventilated membrane that is located the valve body, and the valve air inlet of valve body stretches into the inner chamber of cover body, and the cover body is stretched out to the valve gas outlet of valve body, and the intercommunication has the valve to say between valve air inlet and the valve gas outlet, and grease proofing ventilated membrane covers the valve and says. The end cover is assembled on the wheel hub, when the temperature in a cavity defined by the wheel hub and the cover body is increased and the pressure is increased in the running process of the wheel hub, redundant gas is discharged through the gas-permeable oil sealing valve, and lubricating oil gas is blocked by the oil-proof gas-permeable film and cannot be discharged, so that the lubricating oil is prevented from leaking; at low temperature, the pressure in the cavity is lower than the outside, external gas enters the cavity, and muddy water in the gas is blocked outside by the oil-proof breathable film, so that the effect of balancing the internal pressure and the external pressure is achieved.

Description

Hub end cover

Technical Field

The utility model relates to an automobile parts technical field, specific theory relates to a wheel hub end cover.

Background

The hub end cover is mainly used on the outer side of a front axle hub of a truck and rotates together with the truck wheel. At present, the common wheel hub end covers in China are generally thin plate stamping parts, do not have an oil-proof ventilation function, and also do not have a function of balancing internal pressure and external pressure, when a wheel runs, the temperature in a closed cavity formed by the wheel hub and the wheel hub end covers rises, the pressure of the cavity increases, and if unnecessary gas is not discharged in time, failure of a sealing element can be caused, lubricating oil leaks out, and the normal running and the service life of the wheel hub are influenced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model discloses the technical problem that will solve is: the utility model provides a can balance the wheel hub end cover of the inside and outside pressure of wheel hub unit, this end cover not only can prevent that inside lubricating oil from oozing, can also block outside steam dust etc. and get into inside the wheel hub end cover, protection wheel hub.

In order to solve the technical problem, the technical scheme of the utility model is that:

a hub end cover comprising: the lid, the lid is equipped with the gas seal oil valve, the gas seal oil valve passes including fixed the valve body of lid with be located grease proofing ventilated membrane in the valve body, the valve air inlet of valve body stretches into the inner chamber of lid, the valve gas outlet of valve body stretches out the lid, the valve air inlet with the intercommunication has the valve to say between the valve gas outlet, grease proofing ventilated membrane covers the valve says.

Preferably, the valve outlet port is located on a peripheral side of the valve body.

Preferably, the valve body is the T type, the valve body includes fixed connection's installation department and spacing portion, the installation department with lid threaded connection, installation department threaded connection have the butt in the lock nut of lid internal surface, spacing portion butt in the surface of lid.

Preferably, the valve body is screwed to the cover body.

Preferably, the oil-proof breathable film is welded in the valve body or bonded in the valve body through viscose.

Preferably, the inner surface of the cover body is fixedly provided with an oil baffle cover, and the periphery of the oil baffle cover is provided with an oil baffle cover vent hole which is communicated with the inner cavity of the cover body and the valve air inlet.

Preferably, a cover plate opposite to the air inlet of the valve is fixedly arranged on the outer surface of the cover body.

Preferably, the lid include the casing of cartridge type and connect in the transparent window and the gland of casing one end, transparent window is located the casing with between the gland, the gland is fixed in the casing, the gland includes the apron, the oil baffle cover is fixed in the internal surface of transparent window.

Preferably, the gland comprises a gland flange plate and at least two connecting pieces, wherein the gland flange plate is fixedly connected with the shell, and the connecting pieces are fixedly connected between the gland flange plate and the cover plate.

Preferably, a first sealing gasket is arranged between the gland flange plate and the shell, and a second sealing gasket is arranged between the transparent window and the shell.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the wheel hub end cover includes the lid and ventilative oil seal valve, and ventilative oil seal valve is including the fixed valve body that passes the lid and the grease proofing ventilated membrane that is located the valve body, and the valve air inlet of valve body stretches into the inner chamber of lid, and the valve gas outlet of valve body stretches out the lid, and the intercommunication has the valve to say between valve air inlet and the valve gas outlet, and grease proofing ventilated membrane covers the valve and says. Because the valve air inlet of the air-permeable oil sealing valve extends into the inner cavity of the cover body, the valve air outlet extends out of the cover body, a valve passage is communicated between the valve air inlet and the valve air outlet, the oil-proof air-permeable film covers the valve passage, and the end cover is assembled on the wheel hub; when the temperature is low, the pressure in the cavity is lower than the outside, the external gas enters the cavity, and the muddy water in the gas is blocked outside by the oil-proof breathable film, so that the effect of balancing the internal pressure and the external pressure is achieved, and the hub is protected.

Drawings

FIG. 1 is a schematic structural view of a hub cover according to the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

FIG. 3 is a schematic view of an explosion structure of the wheel hub end cover of the present invention;

FIG. 4 is an enlarged schematic view of the portion B of FIG. 2;

in the figure: 1-a third gasket; 2-a shell; 21-a shell flange; 3-a first gasket; 4-pressing the cover; 41-a gland flange plate; 42-a connecting plate; 43-a cover plate; 5-a transparent window; 6-a second gasket; 7-oil shield; 71-oil shield vent hole; 8-gas permeable oil sealing valve; 81-oil resistant breathable film; 82-valve way; 83-valve inlet; 84-valve outlet; 85-a mounting part; 86-a limiting part; 9-locknut; 10-O type sealing ring; 11-a bolt; 12-bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown collectively in fig. 1, 2 and 3, a hub end cover includes: the lid with locate the ventilative oil seal valve 8 of lid.

The lid includes casing 2, transparent window 5 and gland 4, and casing 2 is the cartridge type, and the one end that casing 2 and wheel hub are connected is equipped with shell flange 21, and transparent window 5 and gland 4 all are located casing 2's the other end, and transparent window 5 is located between casing 2 and the gland 4, and transparent window 5 is made by transparent material, like ya keli or PVC etc.. Gland 4 is including the gland ring flange 41 of integrative setting, connecting piece and apron 43, gland ring flange 41 is fixed in casing 2 through bolt 11, transparent window 5 is compressed tightly by gland ring flange 41 and is fixed in casing 2, be equipped with the sealed 6 of second between transparent window 5 and the casing 2, be equipped with first sealed 3 of filling up between gland ring flange 41 and the casing 2, the connecting piece is connected between gland ring flange 41 and apron 43, the connecting piece is equipped with at least two and along the circumference equipartition, the preferred connecting plate 42 or the connecting rod of connecting piece.

As shown in fig. 4, the gas-permeable oil-sealing valve 8 comprises a valve body penetrating through the transparent window 5 and an oil-proof permeable membrane 81 located in the valve body, an O-ring 10 is arranged between the valve body and the transparent window 5, a valve air inlet 83 of the valve body extends into the inner cavity of the cover body, a valve air outlet 84 of the valve body extends out of the transparent window 5, a valve passage 82 is arranged between the valve air inlet 83 and the valve air outlet 84, the oil-proof permeable membrane 81 covers the valve passage 82, the oil-proof permeable membrane 81 is welded in the valve body by friction welding or bonded in the valve body by viscose, an oil-blocking cover 7 is fixedly installed on the inner surface of the transparent window 5, the oil-blocking cover 7 and the transparent window 5 are made of the same material, the oil-blocking cover 7 covers the valve air inlet 83, an oil-blocking cover vent 71 communicating the inner cavity of the cover body and the valve air inlet 83 is arranged on the periphery of the oil-blocking cover 7, oil-permeable oil-sealing valve 8 is prevented from being directly impacted by oil, a cover plate 43 is arranged opposite to the valve air outlet 84, prevent that outside steam and dust from directly impacting ventilative oil seal valve 8, valve gas outlet 84 is located the week side of valve body, further prevents that outside steam and dust from directly impacting ventilative oil seal valve 8, even the dust gets into valve gas outlet 84, when the wheel drove ventilative oil seal valve 8 and rotates, the dust also can be thrown away.

The valve body is preferably the type of falling T, and the valve body includes fixed connection's installation department 85 and spacing portion 86, installation department 85 and transparent window 5 threaded connection, installation department 85 threaded connection have the lock nut 9 of butt in transparent window 5 internal surface, spacing portion 86 butt in transparent window 5's surface, screw up lock nut 9 can be fixed in the valve body on the transparent window 5.

The utility model discloses a wheel hub end cover assembles on wheel hub, casing ring flange 21 passes through bolt 12 fixed connection with wheel hub, be equipped with third sealed pad 1 between casing ring flange 21 and the wheel hub to enclose into confined cavity between wheel hub, casing 2 and the transparent window 5, in the wheel hub unit operation process, when the temperature rising pressure increases in the cavity, unnecessary gas passes through oil shield air vent 71, valve air inlet 83, valve way 82 and valve gas outlet 84 in order and discharges, when gas passes through grease proofing ventilated membrane 81, oil vapour is blockked by grease proofing ventilated membrane 81 and can't discharge, avoid the lubricating oil of wheel hub to leak; at low temperature, the pressure in the cavity is lower than the outside, the outside air enters the cavity, and the muddy water in the air is blocked outside by the oil-proof breathable film 81, so that the effect of balancing the internal pressure and the external pressure is achieved.

The oil level in the cavity can be directly checked from the outside through the transparent window 5, so that a vehicle owner can conveniently know the running condition of the vehicle in time.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. A hub end cap comprising: the lid, its characterized in that, the lid is equipped with the ventilative oil-tight valve that seals, the ventilative oil-tight valve passes including fixed the valve body of lid with be located grease proofing ventilated membrane in the valve body, the valve air inlet of valve body stretches into the inner chamber of lid, the valve gas outlet of valve body stretches out the lid, the valve air inlet with the intercommunication has the valve to say between the valve gas outlet, grease proofing ventilated membrane covers the valve is said.

2. A hub end cap according to claim 1, wherein the valve outlet port is located on a peripheral side of the valve body.

3. The hub end cap of claim 1, wherein the valve body is T-shaped, the valve body comprises a mounting portion and a limiting portion which are fixedly connected, the mounting portion is in threaded connection with the cover body, the mounting portion is in threaded connection with a locknut abutting against the inner surface of the cover body, and the limiting portion abuts against the outer surface of the cover body.

4. The hub end cap of claim 1, wherein the valve body is threadably attached to the cover.

5. The hub end cover of claim 1, wherein said oil resistant gas permeable membrane is welded or glued within said valve body.

6. The hub cover of claim 1, wherein an oil shield is fixedly disposed on an inner surface of the cover, and an oil shield vent hole communicating an inner cavity of the cover with the valve inlet is disposed around the oil shield.

7. A hub end cap according to claim 6 wherein the outer surface of the cover is fixedly provided with a cover plate opposite the valve inlet.

8. The hub end cover of claim 7, wherein the cover includes a cylindrical shell, a transparent window and a gland coupled to an end of the shell, the transparent window is located between the shell and the gland, the gland is secured to the shell, the gland includes the cover plate, and the oil deflector is secured to an inner surface of the transparent window.

9. The hub end cover of claim 8, wherein the gland includes a gland flange fixedly connected to the shell and at least two connecting members fixedly connected between the gland flange and the cover plate.

10. The hub cap of claim 9 wherein a first seal is disposed between said capping flange and said shell and a second seal is disposed between said transparent window and said shell.