CN208074141U - Air-breather and speed changer - Google Patents
Air-breather and speed changer Download PDFInfo
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- CN208074141U CN208074141U CN201820264814.XU CN201820264814U CN208074141U CN 208074141 U CN208074141 U CN 208074141U CN 201820264814 U CN201820264814 U CN 201820264814U CN 208074141 U CN208074141 U CN 208074141U
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- speed changer
- ventilation pipe
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- breather
- wall
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Abstract
A kind of air-breather of the utility model offer and speed changer, are related to automobile technical field, air-breather includes ventilation pipe；Oil storage cavity is equipped in ventilation pipe, the both ends of ventilation pipe are connected to oil storage cavity respectively；For being connected to the shell of speed changer, the second end of ventilation pipe is used to ventilate with the external world first end of ventilation pipe.In speed changer operational process, pressure in transmission case body is more than the pressure in ventilation pipe, transmission oil can be flowed by the first end of ventilation pipe in oil storage cavity after overflowing speed changer, oil storage cavity can store transmission oil, and speed changer is ventilated by ventilation pipe with extraneous, makes to keep suitable pressure inside speed changer；When speed changer is out of service, the pressure inside speed changer is set to be less than the pressure in ventilation pipe, the transmission oil in the negative pressure driving oil storage cavity inside speed changer flows back in speed changer at this time, and air-breather prevents speed changer oil starvation while so that speed changer is ventilated.
Description
Technical field
The utility model is related to automobile technical fields, having the ventilation more particularly, to a kind of air-breather, and one kind
The speed changer of device.
Background technology
Speed changer is for changing the rotating speed from engine and the mechanism of torque, it can be fixed or stepping changes output shaft
With input shaft transmission ratio, also known as gearbox.Speed changer is made of variable transmission mechanism and operating mechanism, some automobiles are also dynamic
Output mechanism, transmission mechanism ordinary gear multi-purpose greatly are driven, also some Planetary Gear Transmissions, ordinary gear transmission shifting mechanism
Generally with shifting slide gear and synchronizer etc..
Speed changer at work, due between gear tooth working surface, bearing, set clutch into people engage or deviate from etc. rub
It wipes, oil temperature can be made to increase.Lubricating oil will produce evaporation at high temperature, so that oil pressure in speed changer or transfer case without limitation body is increased, seriously
When can cause oil sealing damage cause oil leak.Above-mentioned failure occurs in order to prevent, and ventilation is equipped in the appropriate location of case of transmission
Hole makes to keep pressure appropriate inside case of transmission so as to can ventilate with the external world inside case of transmission.
However, when oil temperature and oil pressure increase, the transmission oil inside case of transmission can be overflowed from venthole, speed change
After device runs a period of time, since transmission oil constantly overflows, speed changer oil starvation can be caused, speed changer operation is caused to be short of power
Or damage.
Utility model content
The purpose of this utility model is to provide a kind of air-breathers, and the ventilation to solve speed changer in the prior art fills
Set the technical issues of leading to speed changer oil starvation.
Air-breather provided by the utility model, including ventilation pipe；
Oil storage cavity is equipped in the ventilation pipe, the both ends of the ventilation pipe are connected to the oil storage cavity respectively；
The first end of the ventilation pipe for be connected to the shell of speed changer, the second end of the ventilation pipe for
External world's ventilation.
Further, the oil storage cavity includes inner and outer wall；
The inner wall forms cavity and is connected to the first end of the ventilation pipe, and the inner wall is equipped with through-hole；
The outer wall is set in the outside of the inner wall, and venting channels are formed between the outer wall and the inner wall, described
Venting channels are connected to the second end of the ventilation pipe.
Further, the through-hole is arranged at the top of the inner wall.
Further, the second end of the ventilation pipe is located at the lower section of the through-hole.
Further, the air-breather further includes deflector；
The deflector is arranged in the shape of a spiral around the axis of inner wall, and the deflector is fixed on the inner wall and described outer
Between wall.
Further, the air-breather further includes filtration members；The filtration members are arranged the first of the ventilation pipe
On end.
Further, the air-breather further includes connecting tube, and the connecting tube and the first end of the ventilation pipe connect
It is logical, when the connecting tube is located at for air-breather outside speed changer, make the first end of the ventilation pipe and the shell of speed changer
Body is connected to.
Further, the air-breather further includes holder, and the holder is arranged on the outer surface of the air-breather,
For making the air-breather be fixed on the outside of speed changer.
The purpose of this utility model, which also resides in, provides a kind of speed changer, including derailleur body and described in the utility model
Air-breather.
Further, the air-breather is air-breather described in the utility model；
The first end of the oil storage cavity and the ventilation pipe is arranged at the inside of the shell, the ventilation pipe
Second end stretch out the shell.
Air-breather provided by the utility model, including ventilation pipe；Oil storage cavity is equipped in the ventilation pipe, it is described
The both ends of ventilation pipe are connected to the oil storage cavity respectively；The first end of the ventilation pipe is used to connect with the shell of speed changer
Logical, the second end of the ventilation pipe is used to ventilate with the external world.In speed changer operational process, the oil temperature in the shell of speed changer
Oil pressure constantly increases, and the pressure in transmission case body is more than the pressure in ventilation pipe, and transmission oil can after overflowing speed changer
By the way that in the first end inflow oil storage cavity of ventilation pipe, oil storage cavity can store transmission oil, and speed changer passes through
Feed channel is ventilated with extraneous, makes to keep suitable pressure inside speed changer；When speed changer is out of service, the oil temperature in speed changer
It is continuously decreased with oil pressure, the pressure inside speed changer is made to be less than the pressure in ventilation pipe, the negative pressure inside speed changer is driven at this time
Transmission oil in dynamic oil storage cavity flows back in speed changer, and makes that suitable pressure, air-breather is kept to exist inside speed changer
Speed changer oil starvation is prevented while so that speed changer is ventilated, and is prevented speed changer operation and is short of power and damages.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the front view for the air-breather that the utility model embodiment provides；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is that (transmission oil is by speed changer stream for one schematic diagram of principle of air-breather that provides of the utility model embodiment
Enter oil storage component)；
Fig. 4 is that (transmission oil is by oil storage component for two schematic diagram of principle of air-breather that provides of the utility model embodiment
Flow into speed changer).
Icon：1- oil storage cavities；11- outer walls；12- inner walls；121- through-holes；2- ventilation pipes；21- first ends；
22- second ends；3- holders；4- connecting tubes；5- deflectors.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
In the description of the present invention, it should be noted that such as occur term "center", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member
Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition, term " first " such as occur, " second ", being used for description purposes only, it is not understood to indicate or imply relative importance.
Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of ventilation component and speed changer, and multiple embodiments are given below and are carried to the utility model
The ventilation component and speed changer of confession are described in detail.
Embodiment 1
Air-breather provided in this embodiment, as shown in Figures 1 to 4, including ventilation pipe 2；Have in ventilation pipe 2
The both ends of oil storage cavity 1, ventilation pipe 2 are connected to oil storage cavity 1 respectively；The first end 21 of ventilation pipe 2 is used for and speed changer
Shell connection, the second end 22 of ventilation pipe 2 is used for and extraneous ventilates.
Wherein, ventilation pipe 2 can be straight tube, or any suitable form such as bend pipe, as long as ventilation pipe 2
Both ends can be connected to, and then realize ventilation.
Wherein, oil storage cavity 1 can be able to be tubbiness, or any suitable form such as pot dress, as long as shoe cream room
Body 1 can store transmission oil, and oil storage cavity 1 is connected to the both ends of ventilation pipe 2 respectively, so that ventilation pipe 2
First end 21, the second end 22 of oil storage cavity 1 and ventilation pipe 2 be sequentially communicated, such as the closing chamber that oil storage cavity 1 is gyalectiform
Body is set on oil storage cavity 1 there are two through-hole 121, and two through-holes 121 are connected to the both ends of ventilation pipe 2 respectively.
For the first end 21 of ventilation pipe 2 for being connected to the shell of speed changer, the first end 21 of ventilation pipe 2 can be with
Air hole connection on case of transmission, can also stretch into case of transmission, as long as the first end 21 of ventilation pipe 2 can be with
Case of transmission is connected to, and since case of transmission is connected to ventilation pipe 2, ventilation pipe 2 can make in transmission case body
Portion ventilates with extraneous, makes to keep suitable pressure inside case of transmission.
Also, in speed changer operational process, the oil temperature oil pressure in the shell of speed changer constantly increases, the shell of speed changer
Interior pressure is more than the pressure in ventilation pipe 2, and transmission oil under the effect of the pressure can be towards the external stream of case of transmission
Go out, and can be flowed into oil storage cavity 1 by the first end 21 of ventilation pipe 2, oil storage cavity 1 can store transmission oil.
When speed changer is out of service, oil temperature and oil pressure in speed changer continuously decrease, and keep the pressure inside speed changer small
Pressure in ventilation pipe 2, the transmission oil in the negative pressure driving oil storage cavity 1 inside speed changer is by oil storage cavity 1 at this time
It flows back in speed changer, air-breather prevents speed changer oil starvation while so that speed changer is ventilated, and it is dynamic to prevent speed changer operation
Power is insufficient and damage.
Air-breather provided in this embodiment, including ventilation pipe 2；There is oil storage cavity 1, snorkel in ventilation pipe 2
The both ends in road 2 are connected to oil storage cavity 1 respectively；The first end 21 of ventilation pipe 2 with the shell of speed changer for being connected to, snorkel
The second end 22 in road 2 is used to ventilate with the external world.In speed changer operational process, the oil temperature oil pressure in the shell of speed changer is continuous
Increase, the pressure in transmission case body is more than the pressure in ventilation pipe 2, and transmission oil can pass through ventilation after overflowing speed changer
The first end 21 of pipeline 2 flows into oil storage cavity 1, and oil storage cavity 1 can store transmission oil, and speed changer passes through snorkel
Road 2 is ventilated with extraneous, makes to keep suitable pressure inside speed changer；When speed changer is out of service, oil temperature in speed changer and
Oil pressure continuously decreases, and the pressure inside speed changer is made to be less than the pressure in ventilation pipe 2, at this time the negative pressure driving inside speed changer
Transmission oil in oil storage cavity 1 flows back in speed changer, and makes that suitable pressure, air-breather is kept to make inside speed changer
Speed changer can prevent speed changer oil starvation while ventilation, prevent speed changer operation and be short of power and damage.
Further, oil storage cavity 1 includes inner wall 12 and outer wall 11；Inner wall 12 forms cavity and with the of ventilation pipe 2
One end 21 is connected to, and inner wall 12 is equipped with through-hole 121；Outer wall 11 is set in the outside of inner wall 12, between outer wall 11 and inner wall 12
Venting channels are formed, venting channels are connected to the second end 22 of ventilation pipe 2.
Specifically, inner wall 12 forms cavity, and the cavity is closed tubbiness cavity in the present embodiment, and the cavity is for storing
Transmission oil, the tubbiness cavity are connected to the first end 21 of ventilation pipe 2, and transmission oil can pass through the first of ventilation pipe 2
End 21 flows into the cavity that inner wall 12 is formed, and transmission oil is made to be stored in the cavity.
Outer wall 11 is set in the outside of inner wall 12, and the bottom of outer wall 11 is fixedly connected with the bottom of inner wall 12, outer wall
There is gap between 11 and inner wall 12, form venting channels, inner wall 12 is equipped with through-hole 121, so that cavity and venting channels connect
It is logical.
Venting channels are connected to the second end 22 of ventilation pipe 2, and the second end 22 of ventilation pipe 2 is used to ventilate with the external world,
To make first end 21, cavity, venting channels, the second end 22 of ventilation pipe 2 and the external world of ventilation pipe 2 be sequentially communicated.
Specifically, when speed changer is run, the oil temperature oil pressure in speed changer is gradually increasing, the gas in transmission case body according to
The secondary second end 22 by the first end 21 of ventilation pipe 2, cavity, venting channels and ventilation pipe 2 is discharged outside to；In speed change
When device is out of service, the oil temperature oil pressure in speed changer is gradually reduced, outside air pass sequentially through ventilation pipe 2 second end 22,
The first end 21 of venting channels, cavity and ventilation pipe 2 enters in the shell of speed changer.
Further, through-hole 121 is arranged at the top of inner wall 12.
When in the cavity that transmission oil is stored in the formation of inner wall 12, transmission oil is located at the bottom of cavity, and through-hole 121 is set
It sets at the top of inner wall 12, the distance between through-hole 121 and transmission oil can be increased, prevent transmission oil from being overflow by through-hole 121
Go out.
Further, the second end 22 of ventilation pipe 2 is located at the lower section of through-hole 121.
When outside air is entered by the second end 22 of ventilation pipe 2 in cavity, due to the second end 22 of ventilation pipe 2
Positioned at the lower section of through-hole 121, it can prevent water or pollutant from entering in cavity by through-hole 121, keep the cleaning of transmission oil
Degree.
Further, air-breather further includes deflector 5；Deflector 5 is arranged in the shape of a spiral around the axis of inner wall 12, and leads
Flowing plate 5 is fixed between inner wall 12 and outer wall 11.
In the present embodiment, deflector 5 is welded with inner wall 12 and outer wall 11 respectively, and deflector 5 is arranged in the shape of a spiral, outside
When boundary's air is entered by the second end 22 of ventilation pipe 2 in cavity, air is along 5 spiral of deflector to 12 top of inner wall
It after through-hole 121, flows into cavity, water or pollutant can be further prevented to enter in cavity by through-hole 121, keep speed changer
The cleannes of oil.
Further, air-breather further includes filtration members；Filtration members are arranged in the first end 21 of ventilation pipe 2.Air
By the first end 21 of ventilation pipe 2 into fashionable, it is filtered by filtration members, water or pollutant can be further prevented to pass through
Through-hole 121 enters in cavity, keeps the cleannes of transmission oil.
It should be noted that air-breather provided in this embodiment can be arranged in the outside of the shell of speed changer, also may be used
The shell for making the second end 22 of ventilation pipe 2 stretch out speed changer in the inside of the shell of speed changer is partly arranged.
Further, when the hull outside in speed changer is arranged in air-breather, air-breather further includes connecting tube 4, even
Take over 4 is connected to the first end 21 of ventilation pipe 2, when connecting tube 4 is located at for air-breather outside speed changer, makes snorkel
The first end 21 in road 2 is connected to the shell of speed changer.
Specifically, the shell of speed changer is equipped with venthole, and the first end 21 of ventilation pipe 2 passes through connecting tube 4 and ventilation
Hole grafting can be convenient for the shell of connection ventilation pipe 2 and speed changer, improve convenience.
Further, air-breather further includes holder 3, and holder 3 is arranged on the outer surface of air-breather, for making ventilation
Device is fixed on the outside of speed changer.Such as automobile is equipped with the support element for fixing air-breather, holder 3 can be with support
Part is fixedly connected, to when air-breather be fixed on the outside of speed changer, prevent air-breather from shaking, improve reliability.
Air-breather provided in this embodiment, including ventilation pipe 2；There is oil storage cavity 1, snorkel in ventilation pipe 2
The both ends in road 2 are connected to oil storage cavity 1 respectively；The first end 21 of ventilation pipe 2 with the shell of speed changer for being connected to, snorkel
The second end 22 in road 2 is used to ventilate with the external world.In speed changer operational process, the oil temperature oil pressure in the shell of speed changer is continuous
Increase, the pressure in transmission case body is more than the pressure in ventilation pipe 2, and transmission oil can pass through ventilation after overflowing speed changer
The first end 21 of pipeline 2 flows into oil storage cavity 1, and oil storage cavity 1 can store transmission oil, and speed changer passes through snorkel
Road 2 is ventilated with extraneous, makes to keep suitable pressure inside speed changer；When speed changer is out of service, oil temperature in speed changer and
Oil pressure continuously decreases, and the pressure inside speed changer is made to be less than the pressure in ventilation pipe 2, at this time the negative pressure driving inside speed changer
Transmission oil in oil storage cavity 1 flows back in speed changer, and makes that suitable pressure, air-breather is kept to make inside speed changer
Speed changer can prevent speed changer oil starvation while ventilation, prevent speed changer operation and be short of power and damage.
Embodiment 2
Speed changer provided in this embodiment, including derailleur body and air-breather described in embodiment 1.In speed changer
In ontology operational process, the oil temperature oil pressure in the shell of derailleur body constantly increases, the pressure in the shell of derailleur body
More than the pressure in ventilation pipe 2, transmission oil can be flowed after overflowing derailleur body by the first end 21 of ventilation pipe 2
Enter in oil storage cavity 1, oil storage cavity 1 can store transmission oil, and derailleur body is logical by ventilation pipe 2 and the external world
Gas makes to keep suitable pressure inside derailleur body；When derailleur body is out of service, oil temperature in derailleur body and
Oil pressure continuously decreases, and so that the pressure inside derailleur body is less than the pressure in ventilation pipe 2, at this time inside derailleur body
Transmission oil in negative pressure driving oil storage cavity 1 flows back in speed changer, and makes to keep suitable pressure inside derailleur body,
Air-breather prevents derailleur body oil starvation while so that derailleur body is ventilated, and prevents ontology speed changer and runs power
Insufficient and damage.
Wherein, air-breather can be arranged in the outside of the shell of derailleur body, can also be arranged in derailleur body
Shell inside.
As an implementation, air-breather is arranged in the outside of the shell of derailleur body, the shell of derailleur body
Body is equipped with venthole, and the first end 21 of ventilation pipe 2 is connected to venthole by connecting tube 4, and ventilation pipe 2 and oil storage
Cavity 1 is fixed on the outside of the shell of derailleur body by holder 3.
As another embodiment, air-breather is arranged in the inside of the shell of derailleur body, oil storage cavity 1 and logical
The first end 21 of feed channel 2 is arranged at the inside of shell, and the second end 22 of ventilation pipe 2 stretches out shell；Or oil storage cavity
1, the first end 21 of ventilation pipe 2 and the second end 22 of ventilation pipe 2 are arranged at the inside of shell, and the second of ventilation pipe 2
End 22 is in communication with the outside by pipeline.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of air-breather, which is characterized in that including ventilation pipe；
Oil storage cavity is equipped in the ventilation pipe, the both ends of the ventilation pipe are connected to the oil storage cavity respectively；
For being connected to the shell of speed changer, the second end of the ventilation pipe is used for and the external world first end of the ventilation pipe
Ventilation.
2. air-breather according to claim 1, which is characterized in that the oil storage cavity includes inner and outer wall；
The inner wall forms cavity and is connected to the first end of the ventilation pipe, and the inner wall is equipped with through-hole；
The outer wall is set in the outside of the inner wall, and venting channels, the ventilation are formed between the outer wall and the inner wall
Channel is connected to the second end of the ventilation pipe.
3. air-breather according to claim 2, which is characterized in that the through-hole is arranged at the top of the inner wall.
4. air-breather according to claim 2, which is characterized in that the second end of the ventilation pipe is located at the through-hole
Lower section.
5. air-breather according to claim 2, which is characterized in that the air-breather further includes deflector；
The deflector is arranged in the shape of a spiral around the axis of inner wall, and the deflector be fixed on the inner wall and the outer wall it
Between.
6. air-breather according to claim 1, which is characterized in that the air-breather further includes filtration members；The mistake
Filter part is arranged in the first end of the ventilation pipe.
7. according to the air-breather described in any one of claim 1-6, which is characterized in that the air-breather further includes connecting
It takes over, the connecting tube is connected to the first end of the ventilation pipe, and the connecting tube is located at for air-breather outside speed changer
When portion, the first end for making the ventilation pipe is connected to the shell of speed changer.
8. according to the air-breather described in any one of claim 1-6, which is characterized in that the air-breather further includes branch
Frame, the holder are arranged on the outer surface of the air-breather, for making the air-breather be fixed on the outside of speed changer.
9. a kind of speed changer, which is characterized in that including the ventilation described in any one of derailleur body and claim 1-8
Device.
10. speed changer according to claim 9, which is characterized in that the air-breather is any in claim 1-6
Air-breather described in；
The first end of the oil storage cavity and the ventilation pipe is arranged at the inside of the shell, and the of the ventilation pipe
The shell is stretched out at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264814.XU CN208074141U (en) | 2018-02-23 | 2018-02-23 | Air-breather and speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264814.XU CN208074141U (en) | 2018-02-23 | 2018-02-23 | Air-breather and speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074141U true CN208074141U (en) | 2018-11-09 |
Family
ID=64038218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820264814.XU Active CN208074141U (en) | 2018-02-23 | 2018-02-23 | Air-breather and speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208074141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
-
2018
- 2018-02-23 CN CN201820264814.XU patent/CN208074141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
| CN113719602B (en) * | 2021-07-13 | 2024-01-16 | 东风汽车集团股份有限公司 | Gearbox ventilation device and gearbox |
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