CN218326118U - Ventilation device for automobile speed reducer - Google Patents
Ventilation device for automobile speed reducer Download PDFInfo
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- CN218326118U CN218326118U CN202222696402.2U CN202222696402U CN218326118U CN 218326118 U CN218326118 U CN 218326118U CN 202222696402 U CN202222696402 U CN 202222696402U CN 218326118 U CN218326118 U CN 218326118U
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Abstract
The utility model discloses an air breather for automobile speed reducer, including ventilating cap, spring, the bowl shape valve of ventilating and the cylinder of ventilating, the cylinder of ventilating is hollow structure, and the cap fixed connection of ventilating is in the upper end of the cylinder of ventilating, and the spring is located the space that the cavity of the cap of ventilating and the cylinder of ventilating formed with the bowl shape valve of ventilating, and the bowl shape valve sliding connection of ventilating is in the cylinder of ventilating, and the bowl shape valve of ventilating can reciprocate, and the one end of spring is connected on the bowl shape valve of ventilating, and the other end of spring is connected on the cap of ventilating. Under the fixed state of the vent cap, the spring can drive the vent bowl-shaped valve to move up and down; the vent bowl-shaped valve is embedded in the vent column, and the bottom of the vent bowl-shaped valve is in contact with the inner oblique angle step surface of the vent column in a natural state so as to prevent impurities such as external water, sand and the like from entering the inside of the speed reducer.
Description
Technical Field
The utility model belongs to the technical field of new energy automobile, concretely relates to an air breather for automobile reducer.
Background
The pure electric vehicle is a representative product of new energy vehicles and gradually becomes a direction indicator which is researched and developed by various large vehicles and enterprises. The speed reducer in the pure electric vehicle driving system is an indispensable important structure, under the condition that the vehicle continuously runs, the temperature inside the speed reducer can become very high, a main speed reducer and a differential mechanism need to transmit larger torque, larger relative sliding exists between gear tooth surfaces, in addition, a bearing and friction between gaskets increase the temperature of lubricating oil, the pressure of gas in a shell rises, if no ventilation device is arranged on the speed reducer, oil leakage is easily caused by oil seal damage, and the service life of the speed reducer is influenced by overhigh oil temperature of the gear. Breather on the reduction gear mainly is used for balancing the inside and outside atmospheric pressure of reduction gear, prevents simultaneously that other filths such as outside water, sand from carrying out the reduction gear inside influence reduction gear operation.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model aims to provide a simple structure, convenient to use are used for automobile reducer's air-breather, can prevent when satisfying the inside ventilation of reduction gear that water, sand etc. get into the reduction gear.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides an air-breather for automobile speed reducer, is including ventilating cap, spring, the bowl shape valve of ventilating and the cylinder of ventilating, and the cylinder of ventilating is hollow structure, and the cap fixed connection of ventilating is in the upper end of the cylinder of ventilating, and the spring is located the space that the cavity of the cap of ventilating and the cylinder of ventilating formed with the bowl shape valve of ventilating, and the bowl shape valve sliding connection of ventilating is in the cylinder of ventilating, and the one end of spring is connected on the bowl shape valve of ventilating, and the other end of spring is connected on the cap of ventilating.
Furthermore, the lower part of the ventilation cylinder body is provided with external threads, and the ventilation cylinder body is connected to the speed reducer in a matching mode through the external threads on the lower part and a ventilation threaded hole reserved on the shell of the speed reducer.
Furthermore, the ventilation device also comprises a ventilation net type bowl-shaped plug which is arranged in the cavity of the ventilation column body and is positioned below the ventilation bowl-shaped valve.
Furthermore, the ventilation net type bowl-shaped plug is fully distributed with fine unthreaded holes, and the ventilation net type bowl-shaped plug and the ventilation cylinder body are assembled in an interference fit mode.
Furthermore, an oblique angle step surface is arranged in the ventilation column body, the bottom of the ventilation bowl-shaped valve is in contact with the oblique angle step surface in the ventilation column body in a natural state, and the ventilation bowl-shaped valve is in clearance fit with the inner wall of the ventilation column body.
Furthermore, be equipped with recess I that is used for installing the spring in the cap of ventilating, the top of ventilating bowl shape valve is equipped with recess II that is used for installing the spring, and the one end fixed connection of spring is in recess I, and the other end fixed connection of spring is in recess II.
Furthermore, a protruding wedge-shaped structure is arranged at the top end of the ventilation column body.
Further, the bottom of the inner side of the ventilation cap is provided with arc-shaped clamping blocks, the arc-shaped clamping blocks are uniformly distributed along the circumference of the bottom of the ventilation cap, and when the ventilation cap is installed on the ventilation cylinder, the arc-shaped clamping blocks are clamped with the protruding wedge-shaped structures.
Adopt the utility model discloses technical scheme's advantage does:
the utility model adopts the mode of combining the ventilating net type bowl-shaped plug and the ventilating bowl-shaped valve, and the ventilating bowl-shaped valve can effectively prevent impurities such as external water, sand and the like from entering the inside of the speed reducer; the ventilating net type bowl-shaped plug can effectively filter external large particle impurities to be carried out inside the speed reducer, and meanwhile, heat generated inside the speed reducer can be effectively discharged; can adapt to the reduction gear products of different grade type.
Drawings
The present invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic structural view of the ventilating device of the present invention;
FIG. 2 is a schematic cross-sectional view of the aerator of the present invention;
fig. 3 is a schematic view of the bottom structure of the ventilation cap of the present invention.
The labels in the above figures are: 1. a ventilation cap; 11. a groove I; 12. an arc-shaped fixture block; 2. a spring; 3. a vent bowl valve; 31. a groove II; 4. a vented net bowl plug; 5. a ventilation column; 51. a bevel step surface; 52. projecting wedge-shaped structures.
Detailed Description
In the present invention, it is to be understood that the term "length"; "width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.
As shown in fig. 1 to 3, the ventilation device for the automobile speed reducer comprises a ventilation cap 1, a spring 2, a ventilation bowl-shaped valve 3 and a ventilation cylinder 5, wherein the ventilation cylinder 5 is of a hollow structure, the ventilation cap 1 is fixedly connected to the upper end of the ventilation cylinder 5, the spring 2 and the ventilation bowl-shaped valve 3 are located in a space formed by the ventilation cap 1 and a cavity of the ventilation cylinder 5, the ventilation bowl-shaped valve 3 is slidably connected into the ventilation cylinder 5, the ventilation bowl-shaped valve 3 can move up and down, one end of the spring 2 is connected to the ventilation bowl-shaped valve 3, and the other end of the spring 2 is connected to the ventilation cap 1. Under the fixed state of the ventilation cap 1, the spring 2 can drive the ventilation bowl-shaped valve 3 to move up and down; the vent bowl-shaped valve 3 is embedded in the vent cylinder 5, and the bottom of the vent bowl-shaped valve 3 is in contact with the step surface of the inner oblique angle of the vent cylinder 5 in a natural state so as to prevent impurities such as external water, sand and the like from entering the inside of the speed reducer; when heat in the speed reducer is transferred to the venting bowl-shaped valve 3 from the venting cylinder 5 through the venting bowl-shaped valve 2, the bottom of the venting bowl-shaped valve 3 is away from the inner bevel step surface of the venting cylinder 5 and slowly rises, so that gas can flow to the venting cap 1 from the venting cylinder 5 and then is discharged, and venting is realized.
The lower part of the ventilation column body 5 is provided with external threads, and the ventilation column body 5 is connected to the speed reducer through the matching of the external threads on the lower part and the ventilation threaded hole reserved on the shell of the speed reducer.
The venting device also comprises a venting net type bowl-shaped plug 4, wherein the venting net type bowl-shaped plug 4 is arranged in the cavity of the venting cylinder body 5 and is positioned below the venting bowl-shaped valve 3. The ventilation net type bowl-shaped plug 4 is fully distributed with small unthreaded holes, and the ventilation net type bowl-shaped plug 4 and the ventilation column body 5 are assembled in an interference fit mode, so that the ventilation net type bowl-shaped plug is ensured to be fixed on the ventilation column body.
Be equipped with I11 of recess that is used for installing spring 2 in the cap of ventilating 1, the top of the bowl-shaped valve 3 of ventilating is equipped with II 31 of recess that is used for installing spring 2, and spring 2's one end fixed connection is in I11 of recess, and spring 2's the other end fixed connection is in II 31 of recess.
The ventilation column body 5 is internally provided with an oblique angle step surface 51, the bottom of the ventilation bowl-shaped valve 3 is contacted with the oblique angle step surface 51 in the ventilation column body 5 in a natural state, and the ventilation bowl-shaped valve 3 is in clearance fit with the inner wall of the ventilation column body 5.
The top of the cylinder of ventilating 5 is equipped with outstanding wedge structure 52, and the inboard bottom of cap 1 of ventilating is equipped with arc fixture block 12, and arc fixture block 12 is along the circumference evenly distributed of cap 1 bottom of ventilating, and when cap 1 was installed on the cylinder of ventilating 5, arc fixture block 12 and outstanding wedge structure 52 joint.
Specifically, the lower part of the ventilation column body 5 is of an external thread structure, a ventilation net type bowl-shaped plug 4 is fixed in the ventilation column body, and a ventilation bowl-shaped valve 3 which can move up and down is arranged above the ventilation net type bowl-shaped plug 4; a ventilation cap 1 is arranged above the ventilation bowl-shaped valve, a groove for fixing a spring 2 is arranged below the ventilation cap 1, the other end of the spring 2 is fixed with a ventilation bowl-shaped valve 3, and the spring 2 can drive the ventilation bowl-shaped valve 3 to move up and down when the ventilation cap 1 is fixed; the vent bowl-shaped valve 3 is embedded in the vent cylinder 5, the bottom of the vent bowl-shaped valve 3 is in contact with the inner oblique angle step surface of the vent cylinder 5 in a natural state so as to prevent impurities such as external water, sand and the like from entering the inside of the speed reducer, when heat in the speed reducer is transferred to the vent bowl-shaped valve 3 from the vent cylinder 5 through the vent net type bowl-shaped plug 4 by the vent bowl-shaped valve 2, the bottom of the vent bowl-shaped valve 3 can be separated from the inner oblique angle step surface of the vent cylinder 5 and slowly ascended, so that gas can flow to the vent cap 1 from the vent cylinder 5 and be discharged; the ventilation net type bowl-shaped plug 4 is fully distributed with small holes which can effectively filter external sundries from entering the speed reducer, and the ventilation net type bowl-shaped plug 4 is assembled with the ventilation cylinder 5 in an interference manner, so that the ventilation net type bowl-shaped plug 4 is ensured to be fixed on the ventilation cylinder; the bottom end of the inner side of the ventilation cap 1 is provided with three equally-divided protruding arc-shaped clamping blocks 12 which are used for being connected with a protruding wedge-shaped structure 51 at the top end of the ventilation column body 5.
The utility model adopts the mode of combining the ventilating net type bowl-shaped plug and the ventilating bowl-shaped valve, and the ventilating bowl-shaped valve can effectively prevent impurities such as external water, sand and the like from entering the interior of the speed reducer; the ventilating net type bowl-shaped plug can effectively filter external large-particle impurities to be carried out inside the speed reducer, and meanwhile, heat generated inside the speed reducer can be effectively discharged; can adapt to the reducer products of different types.
The present invention is described above with reference to the accompanying drawings, it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the technical solution of the present invention or the present invention is directly applied to other occasions without improvement, all within the protection scope of the present invention.
Claims (8)
1. An air breather for an automobile retarder, characterized in that: including ventilating cap (1), spring (2), ventilate bowl shape valve (3) and ventilate cylinder (5), it is hollow structure to ventilate cylinder (5), ventilate cap (1) fixed connection in the upper end of ventilating cylinder (5), spring (2) and the space that the cavity of ventilating cap (1) and ventilating cylinder (5) formed is located in with the bowl shape valve (3) of ventilating, it is in ventilating cylinder (5) to ventilate bowl shape valve (3) sliding connection, the one end of spring (2) is connected on the bowl shape valve (3) of ventilating, the other end of spring (2) is connected on ventilating cap (1).
2. A breather apparatus for a vehicle retarder according to claim 1, characterized in that: the lower part of the ventilation cylinder (5) is provided with external threads, and the ventilation cylinder (5) is connected to the speed reducer through the external threads on the lower part and a ventilation threaded hole reserved on the speed reducer shell in a matching manner.
3. A breather device for a vehicle speed reducer according to claim 1 or 2, wherein: the ventilation device also comprises a ventilation net type bowl-shaped plug (4), and the ventilation net type bowl-shaped plug (4) is arranged in the cavity of the ventilation column body (5) and is positioned below the ventilation bowl-shaped valve (3).
4. A breather device for a vehicle retarder according to claim 3, in which: tiny unthreaded holes are distributed in the ventilation net type bowl-shaped plug (4), and the ventilation net type bowl-shaped plug (4) is assembled with the ventilation column body (5) in an interference fit mode.
5. A breather device for a vehicle retarder according to claim 3, in which: the ventilation device is characterized in that an oblique angle step surface (51) is arranged in the ventilation column body (5), the bottom of the ventilation bowl-shaped valve (3) is in contact with the oblique angle step surface (51) in the ventilation column body (5) in a natural state, and the ventilation bowl-shaped valve (3) is in clearance fit with the inner wall of the ventilation column body (5).
6. A breather device for a vehicle retarder according to claim 5, in which: be equipped with I (11) of recess that is used for installing spring (2) in ventilating cap (1), the top of ventilating bowl shape valve (3) is equipped with II (31) of recess that is used for installing spring (2), and the one end fixed connection of spring (2) is in recess I (11), and the other end fixed connection of spring (2) is in recess II (31).
7. A breather device for a vehicle retarder according to claim 6, in which: the top end of the ventilation column body (5) is provided with a protruding wedge-shaped structure (52).
8. A breather device for a vehicle retarder according to claim 7, wherein: arc-shaped clamping blocks (12) are arranged at the bottom end of the inner side of the ventilation cap (1), the arc-shaped clamping blocks (12) are evenly distributed along the circumference of the bottom end of the ventilation cap (1), and when the ventilation cap (1) is installed on the ventilation column body (5), the arc-shaped clamping blocks (12) are clamped with the protruding wedge-shaped structures (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222696402.2U CN218326118U (en) | 2022-10-13 | 2022-10-13 | Ventilation device for automobile speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222696402.2U CN218326118U (en) | 2022-10-13 | 2022-10-13 | Ventilation device for automobile speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218326118U true CN218326118U (en) | 2023-01-17 |
Family
ID=84823076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222696402.2U Active CN218326118U (en) | 2022-10-13 | 2022-10-13 | Ventilation device for automobile speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218326118U (en) |
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2022
- 2022-10-13 CN CN202222696402.2U patent/CN218326118U/en active Active
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