CN214946224U - Transfer case vent structure, transfer case and vehicle - Google Patents
Transfer case vent structure, transfer case and vehicle Download PDFInfo
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- CN214946224U CN214946224U CN202120589853.9U CN202120589853U CN214946224U CN 214946224 U CN214946224 U CN 214946224U CN 202120589853 U CN202120589853 U CN 202120589853U CN 214946224 U CN214946224 U CN 214946224U
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Abstract
The utility model belongs to the technical field of the transfer case, a transfer case air-breather structure, transfer case and vehicle are provided. The transfer case ventilation structure comprises a front cavity and a rear cavity, the front cavity is opened on a front shell of the transfer case, the rear cavity is opened on a rear shell of the transfer case, the front cavity and the rear cavity are correspondingly buckled to form a ventilation cavity, an air outlet is formed in the top of the ventilation cavity and communicated with the outside atmosphere, and an air inlet is formed in the bottom of the ventilation cavity and communicated with the inside of the transfer case; the inner wall part of one side of the ventilation cavity close to the air outlet extends inwards to form a first oil blocking part, a gap is formed between the first oil blocking part and the inner wall of the other side of the ventilation cavity to form an air outlet channel, and the inner wall of the other side of the ventilation cavity extends outwards to coincide with the transfer case shell to form a second oil blocking part. The utility model discloses a ventilation structure can guarantee when ventilating, effectively prevents the oil leak that leads to because of the lubricating oil that transfer case internal gear operation was mixd spatters outward.
Description
Technical Field
The utility model relates to a transfer case technical field, concretely relates to transfer case air-breather, have this kind of transfer case air-breather's transfer case and have the vehicle of this transfer case.
Background
At present, all can set up the transfer case on the vehicle that adopts four-wheel drive system, with each transaxle of derailleur output power distribution, the inside gear drive system that is of transfer case, each part can produce a large amount of heats when the operation, in order to discharge the atmospheric pressure that produces because high temperature in the transfer case to the outside air, balanced inside and outside atmospheric pressure, can set up the ventilation structure with outside intercommunication on the transfer case, nevertheless because each part can drive a large amount of fluid movements when the operation in the transfer case, consequently, can only discharge gas in order to guarantee the ventilation structure, prevent that fluid from spattering through the ventilation structure outward, it blocks the oil board to additionally set up all around the ventilation structure usually, corresponding can set up the boss of installation oil board, pass through the bolt installation with the oil board on the boss, prevent that the oil from spattering from ventilation structure department outward.
However, prevent through the mode that sets up the oil baffle that the oil from spattering outward and set up specific arrangement space in needing the transfer case to satisfy the installation of oil baffle, this just makes the local increase of transfer case box space, influences the inside carrying of whole incasement, and if under oil baffle and the not enough tight condition of casing cooperation, the oil also can flow in from the gap, thereby reveals through the structure of ventilating, influences the product quality.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a ventilation structure with simple structure and reliable function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a be applied to ventilation structure of transfer case to the assurance prevents when ventilating that the inside oil of transfer case from spattering outward and leading to the oil leak.
In order to achieve the purpose, the utility model provides a transfer case ventilation structure, this transfer case ventilation structure sets up on the transfer case casing, the transfer case casing includes front housing and back casing, transfer case ventilation structure includes preceding cavity and back cavity, preceding cavity is seted up on the front housing, the back cavity is seted up on the back casing, preceding cavity and back cavity correspond the lock and form the ventilation cavity, the ventilation cavity top is equipped with the gas outlet and communicates with the external atmosphere, the ventilation cavity bottom is equipped with the air inlet and communicates with the transfer case inside; the inner wall part of one side of the ventilation cavity close to the air outlet extends inwards to form a first oil blocking part, a gap is formed between the first oil blocking part and the inner wall of the other side of the ventilation cavity to form an air outlet channel, and the inner wall of the other side of the ventilation cavity extends outwards to coincide with the transfer case shell to form a second oil blocking part. The utility model discloses a ventilation structure can guarantee when ventilating, effectively prevents the oil leak that leads to because of the lubricating oil that transfer case internal gear operation was mixd spatters outward.
Furthermore, the first oil blocking part comprises a front first oil blocking part and a rear first oil blocking part, and the front first oil blocking part is arranged in the front cavity and is integrated with the front shell; the first oil blocking part is arranged in the rear cavity and integrated with the rear shell, and the open end face of the first oil blocking part can be correspondingly attached to the open end face of the first oil blocking part.
Furthermore, the front first oil retaining part is formed by extending inwards from the inner wall of one side of the front cavity, and a gap is formed between the front first oil retaining part and the inner wall of the other side of the front cavity to form a first air outlet channel; the first oil blocking part of back is built by the inner wall of one side of the back cavity extending inwards, and a gap is formed between the first oil blocking part and the inner wall of the other side of the back cavity to form a second air outlet channel.
Further, the first air outlet channel is communicated with the second air outlet channel to form an air outlet channel.
Further, the gas outlet is arranged at the top of the front chamber, and the lower side of the gas outlet is opposite to the first oil retaining part.
The second oil retaining part comprises a front second oil retaining part and a rear second oil retaining part, the front second oil retaining part is arranged in the front cavity, is formed by outwards extending the inner wall of the other side of the front cavity and is overlapped with the front shell, and a gap is formed between the bottom of the inner wall of one side of the front cavity and the bottom of the inner wall of the other side of the front cavity to form a first air inlet channel; the back second oil retaining part is arranged in the back cavity and is formed by outwards extending the inner wall of the other side of the back cavity and is overlapped with the back shell, and a gap is formed between the bottom of the inner wall of one side of the back cavity and the bottom of the inner wall of the other side of the back cavity to form a second air inlet channel.
Further, the first intake passage communicates with the second intake passage and with the intake port.
Additionally, the utility model also provides a transfer case, this transfer case is provided with above arbitrary transfer case air-breather.
As above, the transfer has good air permeability and oil leakage prevention.
Furthermore, the utility model also provides a vehicle, this vehicle is provided with above the transfer case.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a transfer case vent structure according to an embodiment of the present invention, showing a schematic view of a transfer case front chamber;
fig. 2 is a schematic view of a transfer case vent structure according to an embodiment of the present invention, showing a schematic view of a rear chamber of the transfer case.
Description of reference numerals:
1-a front shell, 2-a rear shell, 3-an air outlet, 4-an air inlet, 5-a front first oil baffle part,
6-a rear first oil retaining part, 7-a first air outlet channel, 8-a second air outlet channel,
9-a front second oil retaining part, 10-a rear second oil retaining part, 11-a front chamber, 12-a first air inlet channel,
13-second inlet channel, 14-vent plug, 15-rear chamber.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, the transfer case ventilation structure provided by the present invention is disposed on the case of the transfer case, the case of the transfer case includes a front case 1 and a rear case 2, the transfer case ventilation structure includes a front chamber 11 and a rear chamber 15, the front chamber 11 is opened on the front case 1, the rear chamber 15 is opened on the rear case 2, the front chamber 11 and the rear chamber 15 are buckled to form a ventilation chamber, the top of the ventilation chamber is provided with an air outlet 3 communicated with the outside atmosphere, and the bottom of the ventilation chamber is provided with an air inlet 4 communicated with the inside of the transfer case; wherein, the inner wall part of one side of the ventilation cavity close to the air outlet 3 extends inwards to form a first oil retaining part, a gap is formed between the first oil retaining part and the inner wall of the other side of the ventilation cavity to form an air outlet channel, and the inner wall of the other side of the ventilation cavity extends outwards to coincide with the transfer case shell to form a second oil retaining part.
Through this technical scheme, the ventilation structure setting of transfer case makes the inside and external atmosphere intercommunication of transfer case on the transfer case casing, will be because the gas that transfer case work produced discharges outside the box through this ventilation structure, and can guarantee that the oil in the box can not spatter outward and produce the oil leak. The method comprises the following specific steps: after the front shell 1 and the rear shell 2 of the transfer case are buckled, a front cavity 11 and a rear cavity 15 which are arranged on the front shell 1 and the rear shell 2 are buckled correspondingly, so that an air ventilation cavity is formed, an air outlet 3 is arranged at the top of the air ventilation cavity, the air outlet 3 communicates the interior of the transfer case with the outside atmosphere, part of the shell of the inner wall of one side of the air ventilation cavity extends inwards into the air ventilation cavity and keeps a certain distance with the inner wall of the other side correspondingly, the extending part of the shell forms a first oil blocking part, and the first oil blocking part is just positioned below the air outlet 3 and can block oil splashed in the case from flowing out of the air outlet 3 or block oil carried in high-temperature gas from flowing out of the air outlet 3; the inner wall of the other side of the ventilation cavity extends to the outer side of the ventilation cavity until the inner wall is overlapped with the shell of the transfer case to form a second oil retaining part, and the second oil retaining part can prevent oil stirred by the rotation of the gear in the transfer case from entering the ventilation cavity; the bottom of the ventilation cavity is provided with an air inlet 4 communicated with the inside of the transfer case and the ventilation cavity, high-pressure gas in the transfer case enters the ventilation cavity through the air inlet 4, the gas flowing through is blocked under the action of the first oil blocking part, oil entrained in the gas can be blocked and flows back into the box body again, and the rest gas is discharged out of the box body through the air outlet 3.
In the ventilation structure of the present invention, the first oil retaining portion has the following specific structure, and the first oil retaining portion is composed of two parts, including the front first oil retaining portion 5 and the rear first oil retaining portion 6, as shown in fig. 1, the front first oil retaining portion 5 is disposed in the front chamber 11 of the front housing 1, belongs to a part of the front housing 1, and can be formed by extending the inner wall of one side of the front chamber 11 inward, and the extending portion thereof does not collide with the inner wall of the other side of the front chamber 11, and keeps a certain distance therebetween, and forms the first air outlet channel 7 as a channel for air circulation; as shown in fig. 2, the rear first oil baffle 6 is disposed in the rear chamber 15 of the rear housing 2, belongs to a part of the rear housing 2, and may be formed by extending the inner wall of one side of the rear chamber 15 inward, and the extended portion does not touch the inner wall of the other side of the rear chamber 15, and a certain distance is maintained between the two, and the second air outlet channel 8 is formed as a channel for air circulation. After the current casing 1 and the 2 lock of back casing, the open terminal surface of preceding first fender oil portion 5 and the open terminal surface of the first fender oil portion 6 of back also can correspond the laminating, and first outlet channel 7 and second outlet channel 8 intercommunication communicate with each other and communicate with each other with air inlet 4 and gas outlet 3.
In order to ensure that the first oil retaining part can effectively prevent splashed oil or high-temperature gas from entraining the oil to flow out of the gas outlet 3, the gas outlet 3 is arranged on the front shell body 1 corresponding to the upper part of the first oil retaining part.
When the transfer case works, lubricating oil in the case body is stirred along with the rotation of the gear, in order to further prevent the stirred oil from splashing into the ventilation cavity, a second oil blocking part is arranged on the outer side of the ventilation cavity, the position of the second oil blocking part is deviated from the direction of stirring and rotating the oil, the second oil blocking part comprises a front second oil blocking part 9 and a rear second oil blocking part 10 which are respectively arranged in a front cavity 11 and a rear cavity 15, the front second oil blocking part 9 can be formed by the front shell 1, specifically, the inner wall of the other side of the front cavity 11 extends outwards until being superposed with the front shell 1, and the inner walls of the two sides of the front cavity 11 are not intersected at the bottom of the front cavity 11, and a certain distance is reserved between the two inner walls and is used as a first air inlet channel 12; the second rear oil retaining portion 10 may be formed by the rear housing 2, specifically, the inner wall of the other side of the rear chamber 15 extends outward until coinciding with the rear housing 2, and the inner walls of the two sides of the bottom of the rear chamber 15 do not intersect with each other, and a certain distance is provided between the two inner walls to serve as the second air inlet channel 13. After current casing 1 and 2 locks of back casing, the open terminal surface that preceding second kept off oil portion 9 and the open terminal surface of back second fender oil portion 10 correspond the laminating, so, establish a barrier between transfer case inside and the ventilation cavity and prevent that the oil in the box from getting into the ventilation cavity indoor, first inlet channel 12 communicates with each other with second inlet channel 13 and communicates with each other with air inlet 4 and outlet channel.
In order to prevent moisture or other fine impurities outside the box body from entering the box body through the air outlet 3, a ventilation plug 14 is arranged on the front shell body 1 where the air outlet 3 is located, and the ventilation plug 14 is communicated with the air outlet 3.
In addition, on the basis of above transfer case air-breather structure, the utility model provides a transfer case, wherein, this transfer case is provided with above arbitrary transfer case air-breather structure. The transfer case has good ventilation and oil blocking performance.
Of course, the utility model discloses still provide a vehicle, this vehicle is provided with above the transfer case.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A transfer case ventilation structure is arranged on a transfer case shell, the transfer case shell comprises a front shell (1) and a rear shell (2), and the transfer case ventilation structure is characterized by comprising a front chamber (11) and a rear chamber (15), the front chamber (11) is arranged on the front shell (1), the rear chamber (15) is arranged on the rear shell (2), the front chamber (11) and the rear chamber (15) are correspondingly buckled to form a ventilation chamber, an air outlet (3) is formed in the top of the ventilation chamber and communicated with the outside atmosphere, and an air inlet (4) is formed in the bottom of the ventilation chamber and communicated with the inside of the transfer case;
the inner wall part of one side of the ventilation cavity close to the gas outlet (3) extends inwards to form a first oil retaining part, a gap is formed between the first oil retaining part and the inner wall of the other side of the ventilation cavity to form a gas outlet channel, and the inner wall of the other side of the ventilation cavity extends outwards to form a second oil retaining part in a superposition mode with the transfer case shell.
2. A transfer case vent structure according to claim 1, wherein: the first oil blocking part comprises a front first oil blocking part (5) and a rear first oil blocking part (6), and the front first oil blocking part (5) is arranged in the front cavity (11) and is integrated with the front shell (1); the first oil blocking part (6) is arranged in the rear cavity (15) and integrated with the rear shell (2), and the open end face of the first oil blocking part (5) can be correspondingly attached to the open end face of the first oil blocking part (6).
3. The transfer case vent structure according to claim 2, wherein the front first oil baffle (5) is formed by extending inward from one side inner wall of the front chamber (11) and has a gap with the other side inner wall of the front chamber (11) to form a first air outlet channel (7); the rear first oil retaining part (6) is formed by inwards extending the inner wall of one side of the rear cavity (15), and a gap is formed between the rear first oil retaining part and the inner wall of the other side of the rear cavity (15) to form a second air outlet channel (8).
4. A transfer case vent structure according to claim 3, wherein the first outlet channel (7) and the second outlet channel (8) communicate to form the outlet channel.
5. A transfer case vent structure according to claim 2, wherein the air outlet (3) is arranged at the top of the front chamber (11), and the lower part of the air outlet (3) is opposite to the first oil baffle.
6. A transfer case vent structure according to claim 2, wherein the second oil baffle comprises a front second oil baffle (9) and a rear second oil baffle (10), the front second oil baffle (9) is arranged in the front chamber (11), is formed by extending the inner wall of the front chamber (11) from the other side outwards, and is overlapped with the front housing (1), and the bottom of the inner wall of the front chamber (11) from one side and the bottom of the inner wall of the front chamber (11) from the other side have a gap to form a first air inlet channel (12);
the rear second oil retaining portion (10) is arranged in the rear cavity (15), is formed by outwards extending the inner wall of the other side of the rear cavity (15) and is overlapped with the rear shell (2), and a gap is formed between the bottom of the inner wall of one side of the rear cavity (15) and the bottom of the inner wall of the other side of the rear cavity (15) to form a second air inlet channel (13).
7. A transfer case vent according to claim 6, wherein the first inlet passage (12) communicates with the second inlet passage (13) and with the inlet port (4).
8. A transfer case vent structure according to any one of claims 1 to 7, wherein an outer portion communicating with the air outlet (3) is provided with a vent plug (14), and the vent plug (14) is mounted on the front case (1).
9. A transfer case characterized in that the transfer case is provided with a transfer case vent structure according to any one of claims 1 to 8.
10. A vehicle, characterized in that the vehicle is provided with a transfer case according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589853.9U CN214946224U (en) | 2021-03-23 | 2021-03-23 | Transfer case vent structure, transfer case and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589853.9U CN214946224U (en) | 2021-03-23 | 2021-03-23 | Transfer case vent structure, transfer case and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946224U true CN214946224U (en) | 2021-11-30 |
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ID=79042106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120589853.9U Active CN214946224U (en) | 2021-03-23 | 2021-03-23 | Transfer case vent structure, transfer case and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946224U (en) |
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2021
- 2021-03-23 CN CN202120589853.9U patent/CN214946224U/en active Active
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