Ventilation structure of new energy speed reducer

Abstract

The utility model belongs to the technical field of speed reducers, and particularly discloses a ventilation structure of a new energy speed reducer, which comprises a plurality of groups of ventilation cavities communicated in sequence, a first exhaust port and a second exhaust port are formed in the two sides of each set of ventilation cavities, the first exhaust ports and the second exhaust ports of every two adjacent sets of ventilation cavities communicate with each other, and the first exhaust port of the ventilation cavity on the lowermost side communicates with the interior of the speed reducer. The second exhaust port of the ventilation cavity on the uppermost side is communicated with the ventilation plug; the ventilation cavity is provided with an arc-shaped buffer chamber in the air inlet direction of the first exhaust port, the first exhaust port and the second exhaust port are located at the positions of the two ends of the arc-shaped buffer chamber respectively, and the exhaust directions of the first exhaust port and the second exhaust port are different. The resistance of oil liquid in the speed reducer reaching the ventilation plug through the ventilation structure is increased, and no backflow resistance exists even if a small amount of oil liquid enters the ventilation structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of speed reducers, and in particular relates to a ventilation structure of a new energy speed reducer. Background Art

[0002] New energy vehicle models are now plentiful, with a growing number of hardcore off-road vehicles. These vehicles operate under complex and variable conditions, often on unpaved roads. Consequently, requirements for new energy reducers to be dustproof and waterproof are becoming increasingly stringent. Reducer vent plugs typically use membrane-type vent plugs, which are widely used due to their excellent dustproof and waterproof properties. However, they have a significant drawback: the small pores of the membrane not only protect against external dust but also easily trap oil and impurities inside the reducer, thereby blocking the pores and affecting ventilation. Utility Model Content

[0003] The purpose of the utility model is to provide a ventilation structure for a new energy reducer, which can increase the resistance of the oil inside the reducer to the vent plug through the ventilation structure, and there will be no backflow resistance even if a small amount of oil enters the ventilation structure.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a ventilation structure of a new energy reducer, comprising multiple groups of ventilation chambers connected in sequence; each group of the ventilation chambers is provided with a first exhaust port and a second exhaust port on both sides, and the first exhaust port and the second exhaust port of the two adjacent groups of the ventilation chambers are connected, and the first exhaust port of the lowermost ventilation chamber is connected to the inside of the reducer; the second exhaust port of the uppermost ventilation chamber is connected to the vent plug; the ventilation chamber is provided with an arc-shaped buffer chamber in the air intake direction of the first exhaust port, and the first exhaust port and the second exhaust port are respectively located at the two ends of the arc-shaped buffer chamber, and the exhaust directions of the first exhaust port and the second exhaust port are different.

[0005] Furthermore, the angle between the exhaust direction of the first exhaust port and the exhaust direction of the second exhaust port of each group of the ventilation chambers is 50°-100°.

[0006] Furthermore, the number of the ventilation chambers is 2-5 groups.

[0007] The beneficial effect of this technical solution is that it can increase the resistance of the oil inside the reducer to the vent plug through the vent chamber. Even if a small amount of oil enters the vent chamber, there will be no backflow resistance. Since the vent chamber is small, the ventilation function of this structure will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural diagram of one side of a new energy reducer of the utility model;

[0009] Figure 2 Figure 2 is a structural schematic view of another side of the new energy speed reducer of the utility model;

[0010] Figure 3 Figure 3 is an enlarged view of A in figure 2; Figure 1 Figure 4 is an enlarged view of B in figure 2;

[0011] Figure 4 Figure 5 is a flow direction schematic view in figure 2; Figure 2 Figure 6 is a flow direction schematic view in figure 2.

[0012] Figure 5 Figure 7 is a flow direction schematic view in figure 2. Figure 3 Figure 8 is a flow direction schematic view in figure 2.

[0013] Figure 6 Figure 9 is a flow direction schematic view in figure 2. Figure 4 Figure 10 is a flow direction schematic view in figure 2. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described in further detail below by means of specific embodiments:

[0015] The reference signs in the drawings of the specification include: ventilation chamber 1, arc-shaped buffer chamber 2, first exhaust port 3.

[0016] The technical scheme in the embodiments of the utility model will be described in further detail below by means of specific embodiments:

[0017] The embodiments are basically as shown in the drawings: Figure 1-6 The utility model relates to a ventilation structure of a new energy speed reducer, which comprises a plurality of groups of ventilation chambers 1 which are sequentially communicated, and the number of the ventilation chambers 1 is 2-5 groups; each group of ventilation chambers 1 is provided with a first exhaust port 3 and a second exhaust port on both sides, the first exhaust port 3 and the second exhaust port of adjacent two groups of ventilation chambers 1 are communicated, the first exhaust port 3 of the lowermost ventilation chamber 1 is communicated with the inside of the speed reducer; the second exhaust port of the uppermost ventilation chamber 1 is communicated with a ventilation plug; the ventilation chamber 1 is provided with an arc-shaped buffer chamber 2 in the air inlet direction of the first exhaust port 3, the first exhaust port 3 and the second exhaust port are respectively located at the positions of both ends of the arc-shaped buffer chamber 2, and the exhaust directions of the first exhaust port 3 and the second exhaust port are different. The included angle between the exhaust direction of the first exhaust port 3 and the exhaust direction of the second exhaust port of each group of ventilation chambers 1 is 50-100 degrees.

[0018] The technical scheme can make the resistance of the oil liquid in the speed reducer to reach the position of the ventilation plug through the ventilation chamber 1 larger, so that even if a small amount of oil liquid enters the ventilation chamber 1, there will be no backflow resistance. Since the number of ventilation chambers is not large, the ventilation effect of the structure will not be affected.

[0019] The technical solution is to change the pipeline structure of the Tesla valve to a cavity structure, so that it is applied to the inner cavity shell of the speed reducer to hinder the oil liquid from pouring and impacting the filter membrane of the breather plug, and the effect of air passage and no oil passage is realized. The Tesla valve can increase the resistance of liquid flowing in one direction, has no moving components, and can be used as a check valve only by mechanical structure, and has the advantages of simple structure and not easy to wear.

[0020] When specifically applied to the inside of the speed reducer, the size of the air chamber 1, the angle of the straight edge, the diameter of the circular arc edge contour, etc. need to be adjusted according to the cavity shape, the internal part avoidance shaft system rotation direction, the oil liquid path and other factors.

[0021] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0022] The above is only an embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail here. The ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the application before the application date or the priority date, can know all the prior art in this field, and has the ability to apply conventional experimental means before that date. The ordinary skilled person in the art can improve and implement the present scheme based on their own ability under the guidance of this application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode in the specification can be used to explain the content of the claims.

Claims

1. A ventilation structure for a new energy reducer, characterized by: The invention comprises a plurality of groups of ventilation chambers (1) connected in sequence; a first exhaust port (3) and a second exhaust port are provided on both sides of each group of ventilation chambers (1); the first exhaust port (3) and the second exhaust port of two adjacent groups of ventilation chambers (1) are connected; the first exhaust port (3) of the ventilation chamber (1) on the lowermost side is connected to the interior of the reducer; the second exhaust port of the ventilation chamber (1) on the uppermost side is connected to the vent plug; the ventilation chamber (1) is provided with an arc-shaped buffer chamber (2) in the air intake direction of the first exhaust port (3); the first exhaust port (3) and the second exhaust port are respectively located at the two ends of the arc-shaped buffer chamber (2); and the exhaust directions of the first exhaust port (3) and the second exhaust port are different.

2. The ventilation structure of a new energy reducer according to claim 1 is characterized in that: The included angle between the exhaust direction of the first exhaust port (3) and the exhaust direction of the second exhaust port of each group of the ventilation chambers (1) is 50°-100°.

3. The ventilation structure of a new energy reducer according to claim 1 is characterized in that: The number of the ventilation chambers (1) is 2-5 groups.

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