CN220947372U - Automobile driving axle housing ventilation structure - Google Patents
Automobile driving axle housing ventilation structure Download PDFInfo
- Publication number
- CN220947372U CN220947372U CN202322404992.1U CN202322404992U CN220947372U CN 220947372 U CN220947372 U CN 220947372U CN 202322404992 U CN202322404992 U CN 202322404992U CN 220947372 U CN220947372 U CN 220947372U
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- oil
- driving axle
- axle housing
- plate
- plug
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- 238000009423 ventilation Methods 0.000 title claims abstract description 33
- 238000005452 bending Methods 0.000 claims description 15
- 230000007306 turnover Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 87
- 230000000903 blocking effect Effects 0.000 abstract description 11
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 239000003595 mist Substances 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses an automobile driving axle housing ventilation structure, which belongs to the technical field of automobile driving axle housings and comprises a ventilation plug arranged on the wall of the driving axle housing, wherein the outer port of the ventilation plug is connected with a ventilation pipe, an oil blocking cover capable of shielding the inner port of the ventilation plug is arranged in the driving axle housing, the oil blocking cover is of a rectangular housing structure with an upper opening, and the upper opening of the oil blocking cover is in sealing buckling with the inner port of the ventilation plug; one side of the oil shield is provided with a balanced air pressure channel. The oil drop that makes splash throw to the breather plug adheres to the oil shield outer wall to flow back to the transaxle housing bottom, effectively avoid the oil drop to get into the breather pipe through the breather plug, and oil mist, oil gas can significantly reduce, the oil mass of oil gas entering the breather pipe through the breather plug, effectively control the oil mass of entering the breather pipe, effectively avoid lubricating oil to form the cross section oil film in the breather pipe, avoid breather pipe oil seepage phenomenon. The whole structure is simple, the realization is easy, and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of automobile driving axle housings, and particularly relates to an automobile driving axle housing ventilation structure.
Background
The automobile drive axle generally comprises a main speed reducer, a differential mechanism, a wheel transmission device, a drive axle housing and the like, and the drive axle is positioned at the tail end of a power transmission system and has the following basic functions: 1. the engine torque transmitted by the universal transmission device is transmitted to driving wheels through a main speed reducer, a differential mechanism, a half shaft and the like, so that the speed reduction and the torque increase are realized; 2. the transmission direction of the torque is changed through a bevel gear pair of the main speed reducer; 3. the differential mechanism realizes the differential action of wheels at two sides, and ensures that the wheels at the inner side and the outer side turn at different rotating speeds; 4. the bearing and force transmission functions are realized through the axle housing and the wheels.
The main function of the driving axle housing is to support the mass of the automobile, bear the reaction force and torque from the road surface, and transmit the reaction force and torque to the frame (or the automobile body) through the independent suspension, which is the assembly foundation of the main reducer, the differential mechanism and the half axle, and the driving axle housing is filled with lubricating oil, so that the gears, the bearings and the like can be lubricated.
Along with the temperature change of the axle, the air volume in the cavity of the driving axle shell can be obviously changed, the air pressure in the cavity of the driving axle shell can be increased, and then the oil seal function is damaged, and the oil leakage fault occurs. In order to balance the air pressure inside and outside the cavity of the driving axle housing, the driving axle housing is generally provided with a vent plug, the vent plug is externally connected with a vent pipe, and oil drops, oil mist and oil gas splashed in the cavity of the driving axle housing can enter the vent pipe through the vent plug, condense on the inner wall of the vent pipe and flow back into the driving axle housing. Under extreme conditions, due to the action of oil surface tension, lubricating oil gathers to a certain volume in the vent pipe, an oil film can be formed on the cross section of the vent pipe, and pressure change in the cavity of the driving axle housing can push the oil film to seep outwards along the vent pipe, so that the problem of oil seepage cannot be thoroughly solved.
Disclosure of utility model
In order to solve the problem that in the prior art, due to the action of oil surface tension, lubricating oil gathers to a certain volume in a vent pipe, an oil film is formed on the cross section of the vent pipe, and the pressure change in the cavity of a driving axle housing can push the oil film to seep outwards along the vent pipe, the utility model provides an automobile driving axle housing ventilation structure.
The utility model is realized by the following technical scheme:
The utility model provides an automobile driving axle housing ventilation structure, includes the breather plug of installing on driving axle housing shell wall, and breather plug outer port connection installs the breather pipe, and driving axle housing internally mounted has the fender oil cover that can shelter from the breather plug inner port, and fender oil cover is upper portion open-ended rectangular shell structure, and its upper portion opening seals the lock to the breather plug inner port; one side of the oil shield is provided with a balanced air pressure channel.
A further improvement of the utility model is that the vent plug is arranged at the upper part of the driving axle housing; the vent pipe extends upwards, and the outlet of the vent pipe faces downwards.
The utility model further improves that the upper edge of the oil shield is in fit connection with the inner wall of the driving axle housing and wraps the inner port of the vent plug; the oil shield comprises a bottom plate, two side plates and a rear plate, wherein the front parts of the two side plates are respectively bent inwards to form a first opening plate and a second opening plate, the end parts of the first opening plate and the second opening plate are bent to cross the center line position of the oil shield, and a gap-shaped balance air pressure channel is formed between the first opening plate and the second opening plate.
The utility model further improves that the upper edges of the two side plates are provided with side flanging plates which can be attached to the inner wall of the driving axle housing in a connecting way.
The utility model further improves that the upper edge of the rear plate is provided with a rear flanging plate which can be attached to the inner wall of the driving axle housing.
The utility model further improves that the turnover directions of the side flanging plate and the rear flanging plate are outward.
The utility model further improves that the bending positions of the first opening plate and the second opening plate are consistent, and the bending angle of the first opening plate is larger than that of the second opening plate; and the distance between the bending positions of the first opening plate and the second opening plate and the rear plate is equal to the width of the bottom plate.
The utility model further improves that the oil shield is formed by bending rectangular metal plates.
The utility model further improves that the two sides of the back plate and the back edges of the two side plates are welded and fixed respectively.
In a further development of the utility model, the lower edge of the first opening plate and the lower edge of the second opening plate are respectively welded and fixed with the bottom plate.
From the technical scheme, the beneficial effects of the utility model are as follows:
The oil blocking cover of the rectangular shell structure of the driving axle housing internally mounted shields the inner end of the vent plug, and the inner and outer air pressures of the driving axle housing are balanced through the slit-shaped balanced air pressure channel, the vent plug and the vent pipe, so that splashed oil drops thrown to the vent plug are adhered to the outer wall of the oil blocking cover and flow back to the bottom of the driving axle housing, oil drops are effectively prevented from entering the vent pipe through the vent plug, oil mist and oil gas are greatly reduced from entering the vent pipe through the vent plug, the oil quantity entering the vent pipe is effectively controlled, the cross section oil film of lubricating oil is effectively prevented from being formed in the vent pipe, and the phenomenon of oil leakage of the vent pipe is avoided. The whole structure is simple, the realization is easy, and the practicality is good.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic view of a first view angle structure of an oil shield according to an embodiment of the present utility model.
Fig. 3 is a schematic view of a second view structure of an oil shield according to an embodiment of the present utility model.
Fig. 4 is a schematic top view of an oil shield according to an embodiment of the present utility model.
In the accompanying drawings: 1. the driving axle housing comprises a driving axle housing body 2, an oil baffle cover 21, a bottom plate 22, side plates 23, first opening plates 24, second opening plates 25, side flanging plates 26, rear plates 27, rear flanging plates 3, vent plugs 4 and vent pipes.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.
As shown in fig. 1-4, an alternative embodiment of the present utility model discloses a ventilation structure of an automotive driving axle housing, which comprises a ventilation plug 3 installed on a housing wall of the driving axle housing 1, wherein an outer port of the ventilation plug 3 is connected with a ventilation pipe 4, and the ventilation plug 3 is installed on an upper part of the driving axle housing 1; the vent pipe 4 extends upwards, and the outlet of the vent pipe is downward; the driving axle housing 1 is internally provided with an oil blocking cover 2 which can block the inner end of the vent plug 3, the oil blocking cover 2 is of a rectangular housing structure with an upper opening, and the upper opening is in sealing buckling with the inner end of the vent plug 3; one side of the oil shield 2 is provided with a slit-shaped air pressure balancing channel.
The oil blocking cover 2 of the rectangular shell structure of the inner installation of the driving axle housing 1 shields the inner end of the vent plug 3, and the inner and outer air pressures of the driving axle housing 1 are balanced through the slit-shaped balanced air pressure channel, the vent plug 3 and the vent pipe 4, so that splashed oil drops thrown to the vent plug 3 are attached to the outer wall of the oil blocking cover 2 and flow back to the bottom of the driving axle housing 1, the oil drops are effectively prevented from entering the vent pipe 4 through the vent plug 3, oil mist and oil gas can be greatly reduced, the oil mist enters the vent pipe 4 through the vent plug 3, the oil quantity entering the vent pipe 4 is effectively controlled, a cross-section oil film is effectively prevented from being formed in the vent pipe 4 by lubricating oil, and the phenomenon of oil seepage of the vent pipe 4 is avoided. The whole structure is simple, the realization is easy, and the practicality is good.
The vent plug 3 is arranged at the upper part of the middle section oil surface line of the driving axle housing 1, in order to prevent the vent plug 3 from being arranged on a vehicle frame or being interfered by upper assembly, the installation position of the vent plug 3 is not at the highest point of the driving axle housing 1, the vent plug 3 is obliquely arranged at one side of the highest point, the included angle between the axial direction of the vent plug 3 and the vertical direction is 10-30 degrees, the oil shield 2 is obliquely arranged at 10-30 degrees, and the balanced air pressure channel is obliquely downwards arranged. The breather pipe 4 can be convenient to flow back to the oil in the oil shield 2 through the breather plug 3 and automatically drop to the bottom of the driving axle housing 1, so that the oil can flow back smoothly.
In another alternative embodiment of the utility model, an automobile driving axle housing ventilation structure is disclosed, which comprises a ventilation plug 3 arranged on the housing wall of a driving axle housing 1, a ventilation pipe 4 is arranged at the outer port of the ventilation plug 3 in a connection manner, and the ventilation plug 3 is arranged at the upper part of the driving axle housing 1; the vent pipe 4 extends upwards, and the outlet of the vent pipe is downward, so that rainwater is prevented from entering the driving axle housing 1 to pollute lubricating oil; the driving axle housing 1 is internally provided with an oil blocking cover 2 which can block the inner end of the vent plug 3, the oil blocking cover 2 is of a rectangular housing structure with an upper opening, and the upper opening is in sealing buckling with the inner end of the vent plug 3; one side of the oil shield 2 is provided with a slit-shaped air pressure balancing channel. The upper edge of the oil shield 2 is bonded and welded with the inner wall of the driving axle housing 1, and the inner end of the vent plug 3 is wrapped; as shown in fig. 2-4, the oil shield 2 includes a bottom plate 21, two side plates 22 and a rear plate 26, the front parts of the two side plates 22 are respectively bent inwards to form a first opening plate 23 and a second opening plate 24, the ends of the first opening plate 23 and the second opening plate 24 are bent beyond the center line position of the oil shield 2, and a gap-shaped air pressure balancing channel is formed between the first opening plate 23 and the second opening plate 24. Through the first opening plate 23 and the second opening plate 24 which are mutually shielded, splash oil drops are effectively prevented from entering the vent plug 3 through the balance air pressure channel, so that the oil quantity entering the vent pipe 4 is effectively controlled, and a section oil film is prevented from being formed.
The upper edges of the two side plates 22 are provided with side edge plates 25 which can be attached to the upper side of the inner wall of the driving axle housing 1 in a welding manner. The upper edge of the rear plate 26 is provided with a rear flanging plate 27 which can be attached and welded with the upper side of the inner wall of the driving axle housing 1. And both the side flanging plate 25 and the rear flanging plate 27 are turned outwards. The oil shield 2 is welded and fixed conveniently and firmly by bonding and welding the side flanging plate 25 and the rear flanging plate 27 with the upper wall of the driving axle housing 1.
As shown in fig. 4, the first opening plate 23 and the second opening plate 24 are identical in bending position of the two side plates, and the bending angle of the first opening plate 23 is larger than that of the second opening plate 24. Specifically, the bending angle of the first opening plate 23 is b, b=135 degrees, the bending angle of the second opening plate 24 is a, a=110 degrees, and the width of the balanced air pressure channel is 5mm; and the bending positions of the first opening plate 23 and the second opening plate 24 are spaced from the rear plate 26 by a distance equal to the width of the bottom plate 21. A square enclosing space is formed between the bending positions (side plates 22) of the first opening plate 23 and the second opening plate 24 and the rear plate 26, so that the inner end of the ventilation plug 3 is positioned in the central position of the enclosing space, the inner end of the ventilation plug 3 is reliably shielded, and the phenomenon of oil seepage caused by the formation of a section oil film in the ventilation pipe 4 is avoided.
Wherein, keep off oily cover 2 adopts rectangle panel beating bending welding shaping. The rectangular plate material is easy to obtain and mold.
Wherein, both sides of the back plate 26 and the back edges of the two side plates 22 are welded and fixed respectively. The lower edges of the first opening plate 23 and the second opening plate 24 are respectively welded and fixed with the bottom plate 21. The integral structural strength of the oil shield 2 is ensured, the deformation problem in the use process is avoided, and the use reliability is ensured.
This car driving axle housing ventilation structure, keep off the oil cover 2 at the rectangular shell structure of driving axle housing 1 internally mounted, keep off oil cover 2 and shelter from the breather plug 3 inner, and through the balanced atmospheric pressure passageway of slit form, breather plug 3 and breather pipe 4 balanced driving axle housing 1 internal and external atmospheric pressure, make the oil drop that splashes to breather plug 3 adhere to keep off the oil cover 2 outer wall, and flow back to driving axle housing 1 bottom, effectively avoid the oil drop to get into breather pipe 4 through breather plug 3, and can significantly reduce oil mist, oil gas get into breather pipe 4 through breather plug 3, effectively control the oil mass that gets into breather pipe 4, effectively avoid lubricating oil to form the cross section oil film in breather pipe 4, avoid breather pipe 4 oil seepage phenomenon. The whole structure is simple, the realization is easy, and the practicality is good.
In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments are only required to be referred to each other.
The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides an automobile driving axle housing ventilation structure, including installing in the breather plug (3) on driving axle housing (1) shell wall, breather pipe (4) are installed in breather plug (3) outer port connection, its characterized in that, driving axle housing (1) internally mounted has oil retaining cover (2) that can shelter from in breather plug (3), oil retaining cover (2) is the rectangular shell structure of upper portion open-ended, its upper portion opening is to the sealed lock in breather plug (3) inner port; one side of the oil shield (2) is provided with a balanced air pressure channel;
The ventilation plug (3) is arranged at the upper part of the driving axle housing (1); the ventilation plug (3) is arranged at one side of the highest point of the driving axle housing (1) and is obliquely arranged, the included angle between the axial direction of the ventilation plug (3) and the vertical direction is 10-30 degrees, and the balanced air pressure channel is obliquely downwards arranged;
The vent pipe (4) extends upwards, and the outlet of the vent pipe is downward; the upper edge of the oil shield (2) is in fit connection with the inner wall of the driving axle housing (1), and wraps the inner end of the ventilation plug (3); the oil shield (2) comprises a bottom plate (21), two side plates (22) and a rear plate (26), wherein the front parts of the two side plates (22) are respectively bent inwards to form a first opening plate (23) and a second opening plate (24), the end parts of the first opening plate (23) and the second opening plate (24) are bent to cross the center line position of the oil shield (2), and a gap-shaped balance air pressure channel is formed between the first opening plate (23) and the second opening plate (24);
The bending positions of the first opening plate (23) and the second opening plate (24) are consistent, and the bending angle of the first opening plate (23) is larger than that of the second opening plate (24); and the distance between the bending positions of the first opening plate (23) and the second opening plate (24) and the rear plate (26) is equal to the width of the bottom plate (21);
The oil shield (2) is formed by bending rectangular metal plates; the two sides of the back plate (26) and the back edges of the two side plates (22) are respectively welded and fixed; the lower edge of the first opening plate (23) and the lower edge of the second opening plate (24) are respectively welded and fixed with the bottom plate (21).
2. The ventilation structure of an automobile driving axle housing according to claim 1, wherein side flanging plates (25) which can be attached and connected with the inner wall of the driving axle housing (1) are arranged on the upper edges of the two side flanging plates (22) in a turnover manner.
3. The ventilation structure of the automobile driving axle housing according to claim 2, wherein a rear flanging plate (27) which can be mounted in a fitting connection with the inner wall of the driving axle housing (1) is arranged on the upper edge of the rear plate (26) in a turnover manner.
4. A vehicle transaxle case ventilation structure according to claim 3, wherein both the side flanging plate (25) and the rear flanging plate (27) are turned outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404992.1U CN220947372U (en) | 2023-09-05 | 2023-09-05 | Automobile driving axle housing ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404992.1U CN220947372U (en) | 2023-09-05 | 2023-09-05 | Automobile driving axle housing ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220947372U true CN220947372U (en) | 2024-05-14 |
Family
ID=91021814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322404992.1U Active CN220947372U (en) | 2023-09-05 | 2023-09-05 | Automobile driving axle housing ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220947372U (en) |
-
2023
- 2023-09-05 CN CN202322404992.1U patent/CN220947372U/en active Active
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