CN212203052U

CN212203052U - Transfer case breather

Info

Publication number: CN212203052U
Application number: CN202020424604.XU
Authority: CN
Inventors: 胡亮林; 尹伟; 刘辉; 易义; 万紫; 周志龙
Original assignee: Jiangling Holdings Co Ltd
Current assignee: Jiangling Holdings Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-22
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a transfer case breather, locate including the stopper seat of ventilating and cover the cap of ventilating at stopper seat top of ventilating be provided with vent hole, first cavity and second cavity in the stopper seat of ventilating, vent hole, first cavity and second cavity communicate from bottom to top in proper order, ventilate the cap with ventilate be equipped with between the stopper seat top with the communicating clearance of ventilating of second cavity fixed mounting has the splashproof impeller in the first cavity fixed mounting has filtration membrane in the second cavity. The utility model provides a transfer case breather is through being provided with splashproof impeller, polymer film inside the chock of ventilating, utilizes the ventilative principle of polymer film and the characteristic of polymer film, and the ventilation effect through the polymer film makes the device have pressure automatically regulated function, and simple to operate, space utilization height.

Description

Transfer case breather

Technical Field

The utility model relates to the field of automobiles, in particular to transfer case breather.

Background

With the development of the times and the popularization of automobiles, automobiles become common transportation tools, and the automobiles mainly comprise a series of parts such as an engine, a chassis, a gearbox and the like, wherein the chassis comprises a transmission system, a running system, a steering system and a braking system.

However, when the vehicle is facing a severe driving environment such as a steep slope, mud, sand, snow, etc., it is common to overcome these environmental factors by adopting a four-wheel drive method.

Up to now, four-wheel drive switching of most automobiles is realized by a transfer case. However, in the case of transfer cases which are subjected to these harsh operating environments, there are high demands on the leak-tightness of the transfer case. When the existing transfer case breather uses a breather valve to relieve pressure, the problem of oil gas leakage is always encountered.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a transfer case breather to solve prior art oil gas when ventilating the pressure release and leak the problem.

The utility model provides a transfer case breather, includes the stopper seat of ventilating and locates the ventilation cap at the stopper seat top of ventilating, its characterized in that: the anti-splash plug is characterized in that a vent valve hole, a first cavity and a second cavity are formed in the vent plug seat, the vent valve hole, the first cavity and the second cavity are sequentially communicated from bottom to top, a vent gap communicated with the second cavity is formed between the vent cap and the top of the vent plug seat, an anti-splash impeller is fixedly installed in the first cavity, and a filtering membrane is fixedly installed in the second cavity.

Preferably, the cross section of the first chamber is larger than that of the vent valve hole, so that a first step is formed at the connection part of the first chamber and the vent valve hole, and the splashproof impeller is arranged on the first step.

Preferably, the maximum outer diameter of the splashguard impeller is matched with the size of the first chamber.

Preferably, the splashproof impeller includes axis of rotation and at least one blade, at least one the blade fixed connection in the outside of axis of rotation is spiral from bottom to top and connects gradually.

Preferably, the blades are configured as airfoil-type blades.

Preferably, the cross section of the second chamber is larger than that of the first chamber, so that a second step is formed between the second chamber and the first chamber, and the filter membrane is fixedly mounted on the second step.

Preferably, the filtering membrane is a polymer membrane.

Preferably, a pressing ring is arranged at the top of the filtering membrane, and the maximum outer diameter of the pressing ring is matched with the size of the second chamber.

Preferably, the top of the compression ring is connected with the vent cap.

The utility model has the advantages that: through being provided with splashproof impeller, macromolecular membrane in ventilating the stopper seat inside, set up the splashproof impeller in the position corresponding with the vent valve hole, utilize the characteristic of impeller, make the lubricating oil that gets into in the device can not directly scatter to the vent valve hole on, there is not the leakage of lubricating oil under the circumstances of guaranteeing to ventilate. By utilizing the ventilation principle of the polymer film and the characteristics of the polymer film, the device has the function of automatically adjusting the pressure through the ventilation effect of the polymer film, and is convenient to install and high in space utilization rate.

Drawings

Fig. 1 is a schematic cross-sectional view illustrating an air vent device of a transfer case according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a vent plug seat of a transfer case vent apparatus according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of a splash-proof impeller of a transfer case ventilator according to an embodiment of the present invention.

Description of the main element symbols: 10. a vent plug seat; 11. a vent valve aperture; 12. a first chamber; 13. a second chamber; 14. a first step; 15. a second step; 20. a splash-proof impeller; 21. a rotating shaft; 22. a blade; 30. a filtration membrane; 40. pressing a ring; 50. a ventilation cap; 60. a vent gap.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 2, a transfer case breather device according to a first embodiment of the present invention is shown, including: the anti-splash device comprises a vent plug seat 10, an anti-splash impeller 20, a filter membrane 30, a press ring 40 and a vent cap 50.

Wherein: the top opening part of the vent plug seat 10 is sleeved with the vent cap 50, a vent valve hole 11, a first cavity 12 and a second cavity 13 are arranged in the vent plug seat 10, the vent valve hole 11, the first cavity 12 and the second cavity 13 are sequentially communicated from bottom to top, a vent gap 60 communicated with the second cavity 13 is arranged between the vent cap 50 and the top of the vent plug seat 10, a splash-proof impeller 20 is fixedly arranged in the first cavity 12, and a filtering membrane 30 is fixedly arranged in the second cavity 13.

In this embodiment, as shown in fig. 1, the cross section of the first chamber 12 is larger than that of the vent hole 11, so that a first step 14 is formed at the connection between the first chamber 12 and the vent hole 11, when assembling, the splashboard impeller 20 is fixedly installed on the first step 14, the maximum diameter of the splashboard impeller 20 is matched with the diameter of the first chamber 12, and the height of the splashboard impeller 20 is equal to or slightly smaller than that of the first chamber 12, so that the stability and the processing efficiency of the splashboard impeller in operation are improved.

In this embodiment, the splashguard impeller 20 includes a rotating shaft 21 and six blades 22, the six blades 22 are all configured as wing-type blades, and the six wing-type blades 22 are fixedly connected to the outer side of the rotating shaft 21 from bottom to top in a spiral manner. When the lubricant in the transfer case enters the breather, the blades 22 on the rotating shaft 21 can sufficiently adsorb the lubricant entering the device from the breather hole 11 during the rotation of the splashguard impeller 20, so that the lubricant in the transfer case is not directly scattered to the breather hole. As shown in fig. 1, the cross-section of the second chamber 13 is larger than that of the first chamber 12, so that a second step 15 is formed between the second chamber 13 and the first chamber 12, and a filter membrane 40 is fixedly mounted on the second step 15, and the bottom of the filter membrane 40 is close to the top of the splashguard impeller 20 and is used for adsorbing oil and gas filtered from the splashguard impeller 20. In the present embodiment, the filtration membrane 40 is a polymer membrane. The present application is not limited thereto, and in other embodiments, the number of blades 22 may be more or less than six, and the filtering membrane 40 may be provided as other membranes having the same function and effect, all of which are within the protection scope of the present embodiment.

In addition, a press ring 40 is further arranged on the top of the filtering membrane 30, the maximum outer diameter of the press ring 40 is matched with the diameter of the second chamber 13, and the press ring 40 is of an annular structure with a through hole in the center. The vent cap 60 is sleeved at the opening of the second chamber 13, and is matched with the size and shape of the opening of the second chamber 13, the cross section of the vent cap is C-shaped, the inner wall of the top of the vent cap 50 is further provided with a vent gap 60 for discharging the gas entering the second chamber 13, and the top of the press ring 40 is connected with the inner wall of the vent cap 50.

During the use, with splashproof impeller 20 fixed mounting on first step, with filtration membrane 40 fixed mounting on the second step, locate filtration membrane 30's top with clamping ring 40 cover for fixed filtration membrane 30, locate the opening part at second chamber 13 top with ventilation cap 50 cover at last. After the assembly, the end of the vent plug seat 10 provided with the vent valve hole 11 is connected with a transfer case in an external automobile, the transfer case vent device is set to be a normally open channel, and oil gas is discharged into the vent device during the pressure relief process of the automobile in the driving process. Oil gas gets into in this breather, through the filtering action of the splashproof impeller 20 in the first cavity 12 for lubricating oil in the transfer case can not directly scatter to the air vent, and the gas that gets into in the device is through setting up behind the filtering action of the interior filtration membrane of second cavity 13, discharges through setting up the air vent 60 on the ventilation cap 50 inner wall at last, thereby has realized that lubricating oil in the transfer case can not directly scatter to the air vent, and has made the valve open under 1600 and plus 2400Pa, utilizes the ventilative principle of polymer membrane, makes the device have pressure automatically regulated's function, has solved the problem that lubricating oil leakage can not appear under the circumstances of guaranteeing to ventilate.

It should be noted that the above implementation is only for the purpose of illustrating the applicability of the present application, but this does not represent that a transfer case breather of the present application has only the above implementation flow, and on the contrary, a transfer case breather of the present application can be incorporated into a possible implementation of the present application as long as it can be implemented.

To sum up, the utility model discloses transfer case breather among the above-mentioned embodiment through being provided with splashproof impeller 20, filtration membrane 30 inside the cock seat 10 of ventilating, sets up splashproof impeller 20 in the position corresponding with vent valve hole 11, utilizes the characteristic of impeller, makes the lubricating oil that gets into in the device can not directly scatter to vent valve hole 11 on, can not have the leakage of lubricating oil under the circumstances of guaranteeing to ventilate. By utilizing the ventilation principle of the polymer film and the characteristics of the polymer film, the device has the function of automatically adjusting the pressure through the ventilation effect of the polymer film, and is convenient to install and high in space utilization rate.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a transfer case breather, includes the stopper seat of ventilating and locates the ventilation cap at the stopper seat top of ventilating, its characterized in that: the anti-splash plug is characterized in that a vent valve hole, a first cavity and a second cavity are formed in the vent plug seat, the vent valve hole, the first cavity and the second cavity are sequentially communicated from bottom to top, a vent gap communicated with the second cavity is formed between the vent cap and the top of the vent plug seat, an anti-splash impeller is fixedly installed in the first cavity, and a filtering membrane is fixedly installed in the second cavity.

2. The transfer case breather apparatus of claim 1, wherein: the cross section of the first cavity is larger than that of the vent valve hole, so that a first step is formed at the joint of the first cavity and the vent valve hole, and the splash-proof impeller is arranged on the first step.

3. The transfer case breather apparatus of claim 2, wherein: the maximum outer diameter of the splash-proof impeller is matched with the size of the first cavity.

4. The transfer case breather apparatus of claim 3, wherein: the splashproof impeller includes axis of rotation and at least one blade, at least one blade fixed connection in the outside of axis of rotation is spiral from bottom to top and connects gradually.

5. The transfer case breather apparatus of claim 4, wherein: the blades are arranged as airfoil type blades.

6. The transfer case breather apparatus of claim 1, wherein: the cross section of the second chamber is larger than that of the first chamber so as to form a second step between the second chamber and the first chamber, and the filter membrane is fixedly arranged on the second step.

7. The transfer case breather apparatus of claim 6, wherein: the filtering membrane is a polymer membrane.

8. The transfer case breather apparatus of claim 7, wherein: and a compression ring is arranged at the top of the filtering membrane, and the maximum outer diameter of the compression ring is matched with the size of the second chamber.

9. The transfer case breather apparatus of claim 8, wherein: the top of clamping ring with the cap of ventilating is connected.